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HomeMy WebLinkAboutHilton Drive Warehouse Development – CEQA Class 32 Categorical Exemption16498.00432\44298126.1 CEQA Class 32 Categorical Exemption Memorandum To: City of Fontana Planning Department From: Cheryl Tubbs, Lilburn Corporation Date: February 3, 2026 Subject: Hilton Drive Warehouse Development – CEQA Class 32 Categorical Exemption Memorandum This memorandum presents an environmental analysis for the proposed development of two warehouse buildings totaling 71,985 square‐feet (41,218 SF Building 1 & 30,767 SF Building 2) (“Proposed Project”), located along the north side of Hilton Drive between Redwood Avenue and Hemlock Avenue. An Application for the Proposed Project has been submitted to the City of Fontana by Hilton Drive LLC. The intent of this analysis is to document whether the Project is exempt from the California Environmental Quality Act (CEQA) under the Class 32 Categorical Exemption (CE) set forth in CEQA Guidelines Section 15332. This memorandum provides an introduction, project description, and evaluation of the Project’s consistency with the requirements for a Class 32 CE. This memorandum further evaluates whether any of the exceptions to categorical exemptions set forth in CEQA Guidelines Section 15300.2 apply to the Project. CEQA Guidelines Section 15332 states that a Class 32 CE applies when: a) The project is consistent with the applicable general plan designation and all applicable general plan policies as well as with applicable zoning designation and regulations. b) The proposed development occurs within city limits on a project site of no more than five acres substantially surrounded by urban uses. c) The project site has no value as habitat for endangered, rare or threatened species. d) Approval of the project would not result in any significant effects relating to traffic, noise, air quality, or water quality. e) The site can be adequately served by all required utilities and public services. CEQA Guidelines Section 15300.2 lists the following exceptions to categorical exemptions: a) Location. Classes 3, 4, 5, 6, and 11 are qualified by consideration of where the project is to be located – a project that is ordinarily insignificant in its impact on the environment may in a particularly sensitive environment be significant. Therefore, these classes are considered to apply all instances, except where the project may impact on an environmental resource of hazardous or critical concern where designated, precisely mapped, and officially adopted pursuant to law by federal, state, or local agencies. b) Cumulative Impact. All exemptions for these classes are inapplicable when the cumulative impact of successive projects of the same type in the same place, over time is significant. Hilton Drive Warehouses Project February 3, 2026 Page 2 c) Significant Effect. A categorical exemption shall not be used for an activity where there is a reasonable possibility that the activity will have a significant effect on the environment due to unusual circumstances. d) Scenic Highways. A categorical exemption shall not be used for a project which may result in damage to scenic resources, including but not limited to, trees, historic buildings, rock outcroppings, or similar resources, within a highway officially designated as a state scenic highway. This does not apply to improvements which are required as mitigation by an adopted negative declaration or certified EIR. e) Hazardous Waste Sites. A categorical exemption shall not be used for a project located on a site which is included on any list compiled pursuant to Section 65962.5 of the Government Code. f) Historical Resources. A categorical exemption shall not be used for a project which may cause a substantial adverse change in the significance of a historical resource. PROJECT LOCATION AND SETTING The City of Fontana (City) is located in the southwestern portion of San Bernardino County. The City is bordered by the San Gabriel Mountain Range to the north, Rialto and Bloomington to the east, Jurupa Valley to the south, and Rancho Cucamonga and Ontario to the west. Regional access is available via Interstate 210 (I-210), which traverses the City in an east-west orientation, and Interstate-15 (I-15), which runs along the City’s northwest border; refer to Figure 1, Regional Vicinity. The approximately 4.0-acre Project Site is located in the western portion of the City. Specifically, the Project Site is located along the north side of Hilton Drive between Redwood Avenue and Hemlock Avenue in the City of Fontana, San Bernardino County. Refer to Figure 2, Site Vicinity. Access to the site is provided along southern frontage of the Project Site with driveways on east and west at Hilton Drive; refer to Figure 3, Site Plan. EXISTING CONDITIONS The Project Site is currently vacant and generally flat. Ruderal vegetation and tree stumps occur on-site. The Project Site is surrounded by industrial uses. The Project Site has a City of Fontana General Plan (General Plan) land use designation of Light Industrial (I-L) and is zoned as West End Specific Plan(BP3).1 According to the General Plan, business parks, research and development, technology centers, corporate and support office uses, clean industry, supporting retail uses, truck and equipment sales and related services are allowed. Warehouses that are designed in ways that limit off-site impacts are also permitted.2 1 City of Fontana, City of Fontana General Plan Land Use Map, https://www.fontanaca.gov/DocumentCenter/View/44297, accessed July 18,2025. 2 City of Fontana, Fontana Forward General Plan Update 2015-2035, November 13, 2018. LILBURN C O R P O R A T I O N FIGURE 1 HILTON DRIVE WAREHOUSE DEVELOPMENT City of Fontana, CaliforniaMile 10 PROJECT SITE REGIONAL VICINITY L I L B U R N CORPORATION LILBURN C O R P O R A T I O N FIGURE 2 HILTON DRIVE WAREHOUSE DEVELOPMENT City of Fontana, CaliforniaMile 20 PROJECT SITE W L u g o n i a A ve VICINITY MAP Vanilla Bean Ln Red w oo d A ve Hilton Drive ` L I L B U R N CORPORATION LILBURN CORPORATION HILTON DRIVE WAREHOUSE DEVELOPMENT City of Fontana, California FIGURE 3 SITE PLAN Hilton Drive Warehouses Project February 3, 2026 Page 6 The Project Site is surrounded by a Target warehouse to the north, Vision Communications and Open Door Solutions to the east, Southern California Edison to the west, and a Service Partners, a building supply warehouse to the south. Surrounding uses predominantly consist of industrial uses. The land uses and zoning designations surrounding the Project Site are as follows: • North: Uses to the north are designated Light Industrial (L-I) and zoned West End Specific Plan(BP3). • East: Uses to the east are designated Light Industrial (L-I) and zoned West End Specific Plan(BP3). • South: Uses to the south are designated Light Industrial (L-I) and zoned West End Specific Plan(BP3). • West: Uses to the west are designated Light Industrial (L-I) and zoned West End Specific Plan(BP3). PROJECT DESCRIPTION The Proposed Project is the development of two warehouse buildings totaling 71,985 square‐feet (41,218 SF Building 1 & 30,767 SF Building 2) on an approximately 4.0-acre site in the western portion of the City of Fontana, located along the north side of Hilton Drive between Redwood Avenue and Hemlock Avenue. The Project Site is identified as Assessor’s Parcel Numbers 1110- 151-03. The Proposed Project would include improvements such as landscaping, new curbs, sidewalks, gutters, driveways, and signage (refer to Figure 3, Site Plan). Each building will include a 2,248 square-foot office areas. The trash enclosures would be designed to comply with City requirements and consistent with the architecture of the proposed warehouses. The Proposed Project would provide nighttime lighting, and safety and security cameras. Vehicle ingress and egress access to the proposed warehouses would be from two driveways along Hilton Drive. Construction is anticipated to occur for a duration of approximately 12 months and would comply with the City of Fontana Zoning and Development Code Noise standards, which limits demolition and construction to the hours of 7:00 AM to 6:00 PM on weekdays and 8:00 AM to 5:00 PM on Saturdays. Construction materials required for the project include an excavator, a grader, a tractor, a crane, a concrete saw, paving equipment, a roller, and a rough terrain forklift. Architecture The two warehouses would have a total building area of 71,985 square-feet and a maximum building height of 47.5 feet; refer to Figure 4, Elevations. As a result, the project would be consistent with the Light Industrial maximum building height of 75 feet. The architectural design of the buildings includes tilt-up concrete walls to be painted with colors shown on Figure 4, glass and black anodized aluminum on buildings’ outer surfaces. LILBURN CORPORATION HILTON DRIVE WAREHOUSE DEVELOPMENT City of Fontana, California FIGURE 4 ELEVATIONS Hilton Drive Warehouses Project February 3, 2026 Page 8 Parking The Proposed Project consists of approximately 56 parking spaces for warehouse building 1 and 48 parking spaces for warehouse building 2 (total of 104 spaces), which include electric vehicle and accessible parking stalls. Landscaping Landscaping for the Proposed Project consist of a total of 19,957 sf landscaped area along the perimeters of the Project Site and the building frontages, as well as in the parking areas as required by Municipal Code Section No. 9-71(e) (see Figure 3). The landscaped area will include various drought tolerant trees and shrubs. CONSTRUCTION The Project Site is currently vacant and does not require demolition. Construction is anticipated to occur for a duration of approximately 12 months and would comply with the City of Fontana Zoning and Development Code Noise standards, which limits demolition and construction to the hours of 7:00 AM to 6:00 PM on weekdays and 8:00 AM to 5:00 PM on Saturdays. Construction materials required for the project include an excavator, a grader, a tractor, a crane, a concrete saw, paving equipment, a roller, and a rough terrain forklift. CLASS 32 EXEMPTION CRITERIA ANALYSIS Criterion (a) The project is consistent with the applicable general plan designation and all applicable general plan policies as well as with applicable zoning designation and regulations. General Plan Consistency The Project Site has a City of Fontana General Plan (General Plan) land use designation of Light Industrial (L-I) and zoned as West End Specific Plan(BP3).3 According to the General Plan, business parks, research and development, technology centers, corporate and support office uses, clean industry, supporting retail uses, truck and equipment sales and related services are allowed. Off-site improvements include groundcover, sidewalks, and curbs. Therefore, the Proposed Project is considered allowed use and is consistent with the applicable general plan designation. Table 1, City of Fontana General Plan Project Consistency Analysis, evaluates the project’s consistency with applicable General Plan land use policies. 3 City of Fontana, Fontana Forward General Plan Update 2015-2035, November 13, 2018. Hilton Drive Warehouses Project February 3, 2026 Page 9 Table 1 General Plan Land Use, Zoning, and Urban Design Element Project Consistency Analysis Applicable General Plan Land Use Goals and Policies Project Consistency Analysis Land Use Element Goal: Fontana development patterns support high quality of life and economic prosperity. Policy: Locate high-quality industrial uses where there is appropriate access to regional transportation routes where there is appropriate access to regional transportation routes. Consistent. The Proposed Project consists of two warehouse buildings located approximately 2 miles from the I-15 and I- 210, which serve as regional transportation routes. As such, the Proposed Project is consistent with this Land Use Element policy. Goal: High-quality job- producing industrial uses are concentrated in a few locations where there is easy access to regional transportation routes. Maintain but do expand existing heavy land use areas in proximity to one another and to services for industrial uses. Consistent. The proposed project consists of two warehouse buildings that would be consistent with existing surrounding uses. The surrounding land uses are industrial. Therefore, the project is consistent with this Land Use Element policy. Source: City of Fontana, Fontana Forward General Plan Update 2015-2045, Land Use, Zoning, and Urban Design Element, updated July, 2023. Zoning Code Consistency The Project Site is zoned as West End (BP3) within the West End Specific Plan.4 According to the West End Specific Plan, the Project Site is identified as Rail Service Industrial (BP3) which is designated development of rail served industrial uses and has the opportunity for direct rail service to the Southern Pacific Railroad is expected service primary large distribution type uses 5 As a warehouse use, the Proposed Project is a permitted land use under the City of Fontana West End Specific Plan. The Project has been designed to comply with all applicable land use regulations and development standards set forth in the West End Specific Plan. To ensure compliance, the Project Site will be reviewed by the City’s Planning Division for consistency with applicable Specific Plan development standards. Development Standards include: • Floor Area Ratio (FAR): The floor area shall not exceed a floor area ratio of 0.4 multiplied by the net lot area. • Separation: Any landscaped area shall be separated from adjacent vehicular areas by a wall or curb at least six (6) inches higher than the adjacent vehicular area. • Berming: An earthen berm shall be provided beginning at the curb and extending a minimum of twenty-one (21) feet. All slopes facing streets shall be landscaped with turf and trees, except at sign locations where shrubs, turf, and ground cover are permitted. • Parking Lots and Service Areas Adjacent to Public Streets: These areas shall be screened with shrubs planted on the building side of tree rows. Screening shrubs shall be spaced no more than four (4) feet apart and shall be a minimum five-gallon size at planting. 4 City of Fontana, West End Specific Plan. April 1985. Revised March 15, 1994. 5 City of Fontana, West End Specific Plan. April 1985. Revised March 15, 1994. Hilton Drive Warehouses Project February 3, 2026 Page 10 • Street/Parkway Trees: Street tree planting shall consist of a double row of trees. Trees shall be fifteen-gallon size and planted five (5) feet from the curb or sidewalk line, except where located within a parkway. • Setbacks: Internal industrial buildings shall maintain a minimum setback of twenty (20) feet, with parking areas requiring a minimum setback of fifteen (15) feet. • Landscaping: Landscaping shall consist of evergreen and/or deciduous trees, shrubs, and ground cover, and may also include public sidewalks. Landscaping shall comply with the following standards; Private Parcel Landscaping: a) A fully automatic irrigation system shall be provided. b) All unpaved, non-work areas not used for parking or storage shall be landscaped with turf, ground cover, and trees. • Signage: Flashing or moving signs are not permitted. Freestanding signage shall not exceed 100 square feet in area or eight (8) feet in height. Roof-mounted signs and signs painted directly on walls or buildings are prohibited. • Exterior Architectural Appearance: 1. Building Material Guidelines: Exterior walls for industrial buildings may be constructed of concrete, masonry, glass, or metal. Sheets or corrugated metal is not permitted. A maximum of three (3) colors per building is allowed. 2. Parking Structure Design: Parking structures shall be compatible with surrounding buildings. • Screening Requirements: 1. Rooftop equipment screening a. Architecturally compatible screening shall be provided to conceal all roof top materials and are subject to approval of the planning director. b. With nominally flat roof, the ridge line elevation shall not exceed the parapet elevation, except as approved by the planning commission. c. No part of the flat roof may project above parapet, except for antennas, satellite disk, elevator shafts, stairways and helicopter pads. 2. Refuse area screening: Trash container areas shall be screened from the streets and adjacent parcels with material to match building architecture 3. Screening along street frontages: An architecturally compatible screen shall be installed along all parking areas along street frontage 4. Any building exceeding thirty-five (35) feet in height shall be set back from exterior property boundaries by a distance equal to the building height 5. Landscape coverage for each site shall be determined by setback requirements. All areas not occupied by buildings, parking, or designated storage shall be landscaped. Hilton Drive Warehouses Project February 3, 2026 Page 11 As analyzed above, the project is consistent with applicable General Plan designation and policies and zoning designation and regulations. Thus, the project would meet Criterion (a) requirements. Criterion (b) The proposed development occurs within city limits on a project site of no more than five acres substantially surrounded by urban uses. The Project Site is a 4.0-acre parcel located along the north side of Hilton Drive between Redwood Avenue and Hemlock Avenue, west of Sierra Avenue within the City of Fontana. As shown on Figure 2, the site is within an industrial area and adjacent to industrial uses. The project location within the City and the size of the Project Site provide consistency with Criterial (b) requirements. Criterion (c) The project site has no value as habitat for endangered, rare or threatened species. A Biological Resources Assessment Letter Report dated September 2025, was prepared for the Proposed Project by Jennings Environmental LLC. (Jennings) (Appendix A). The findings are summarized herein. Jennings conducted the general reconnaissance survey within the Project Site to identify the potential for the occurrence of special status species, vegetation communities, or habitats that could support special status wildlife species. The surveys were conducted on foot, throughout the Project Site on September 10, 2025. No rare, State and/or federally-listed threatened or endangered species are documented/or expected to occur within the Project site. Additionally, no plant species with the CNPS California Rare Plant Rank (CRPR) of 1 or 2 were observed on-site or documented to occur on-site in the relevant databases. No other sensitive species were observed within the project area or buffer area. The Project Site is highly disturbed. The habitat on-site is ruderal/disturbed vegetation with gravel surfaces. The site offers no suitable habitat for any rare sensitive species including listed species. Therefore, no further surveys are required. Although the site is highly disturbed, there is some habitat within the Project site and adjacent area that is suitable for nesting birds in general. In general, the following condition of approval, in accordance with the Fontana General Plan Final Environmental Impact Report (August 10, 2018) Mitigation Measure BIO-3 and as recommended in the 2025 Biological Resources Assessment, nesting bird surveys shall be implemented prior to construction if construction occurs during the period of February 1 through September 15. Mitigation Measure BIO-3 states that the City of Fontana shall require that all future project applicants prepare a Biological Assessment in conjunction with a project-level analysis and that the requirements of the Biological Assessment shall be a condition of approval of the individual development project. Accordingly, the following shall be implemented prior to construction: Prior to initial grading or clearing of areas of suitable habitat within the Planning Area (e.g., a vacant site with a landscape of grassland or low-growing, arid scrub vegetation or agricultural use or vegetation), a qualified biologist shall conduct a pre-construction Hilton Drive Warehouses Project February 3, 2026 Page 12 survey, in accordance with the CDFG Staff Report on Burrowing Owl Mitigation, to determine the presence or absence of burrowing owl within the proposed area of impact. Results of surveys, including mitigation recommendations (i.e. a Burrowing Owl Mitigation and Monitoring Report) shall be incorporated into the project-level CEQA compliance documentation. Construction grading/clearing of areas of suitable habitat should occur between September 1 and January 31 to avoid impacts to breeding owls. If occupied burrows are discovered, they shall not be removed during nesting season [February 1 through August 31), unless a qualified biologist can determine that either the owls have not laid eggs or are incubating eggs, or that any young from the burrows are able to forage independently. If initial grading is scheduled to occur during nesting season, the following measures shall be implemented. If removal of occupied burrows is necessary, passive relocation outside of nesting season shall be implemented under the supervision of the qualified biologist. This shall include covering/excavation of burrows and installation of one-way doors as necessary. One-way doors will allow owls inside the burrow to exit but not allow them to re-enter. The biologist shall wait a minimum of one week before the burrow may be excavated to allow the owls time to leave the area. The Project Site is located within the developed western area of the City and is mostly surrounded by urban land uses. There are no sensitive natural communities on the Project Site. No endangered, rare, or threatened species, as defined in CEQA Guidelines Section 15380, are expected to inhabit the site. The site is not within the designated critical habitat of any species. As such, the Project Site has no value as habitat for endangered, rare, or threatened species. Thus, the Proposed Project would meet Criterion (c) requirements. Criterion (d) Approval of the project would not result in any significant effects relating to traffic, noise, air quality, or water quality. TRAFFIC A Traffic Memorandum dated December 9 2025, was prepared for the Proposed Project by Gandini Group, Inc. (Appendix B). The findings are summarized herein. Trip Generation As stated in the Traffic Memorandum, the Proposed Project is forecast to generate approximately 99 daily vehicle trips, including 9 vehicle trips during the AM peak hour and 11 vehicle trips during the PM peak hour which equates to approximately 150 daily PCE trips, including 13 PCE trips during the AM peak hour and 15 PCE trips during the PM peak hour. The project would generate and contribute fewer than 50 peak hour trips to any intersection of two streets designated as Collector or higher on the City’s General Plan circulation system. The project does not propose any deviation from the City’s TIA Guidelines or design standards. Subject to verification by the City Traffic Engineer, the project does not appear to contribute to unique existing or proposed traffic conditions in the project vicinity to warrant further evaluation. Hilton Drive Warehouses Project February 3, 2026 Page 13 Therefore, the project does not warrant the preparation of a transportation impact study with LOS analysis based on the City-established screening criteria and LOS impacts may be presumed to be negligible. Vehicle Miles Traveled (VMT) Screening Criteria The City TIA Guidelines identify screening criteria for certain types of projects that typically reduce VMT and may be presumed to result in a less than significant VMT impact. In accordance with the City’s project type screening, projects generating less than 500 daily vehicle trips may be presumed to have a less than significant VMT impact. The Proposed Project satisfies the City-established vehicle miles traveled (VMT) screening criteria for projects generating less than 500 daily trip. The Proposed Project is forecast to generate approximately 99 daily vehicle trips, including 9 vehicle trips during the AM peak hour and 11 vehicle trips during the PM peak hour which equates to approximately 150 daily PCE trips, including 13 PCE trips during the AM peak hour and 15 PCE trips during the PM peak hour.. Therefore, based on the City’s guidelines, the project would be screened out from a VMT analysis based on the daily trip thresholds and is anticipated to have a less than significant VMT impact. NOISE A Noise Impact Analysis, dated December 23, 2025, was prepared for the Proposed Project by Ganddini Group, Inc. (see Appendix C for report). The unit of measurement used to describe a noise level is the decibel (dB) Construction Noise On-site The City of Fontana has set restrictions to control noise impacts associated with the construction of the Proposed Project. According to Section 18-63 of the city’s Municipal Code, Construction or repairing of buildings or structures, construction activity is limited: between the hours of 7:00 a.m. and 6:00 p.m. on weekdays and between the hours of 8:00 a.m. and 5:00 p.m. on Saturdays except in the case of urgent necessity. Project construction noise levels are, therefore, considered exempt from municipal regulation if activities occur within the hours specified in the City of Fontana Municipal Code, Section 18-63 of 7:00 a.m. to 6:00 p.m. on weekdays and between the hours of 8:00 a.m. to 5:00 p.m. on Saturdays. However, neither the General Plan nor the Municipal Code establish numeric maximum acceptable construction source noise levels at potentially affected receivers for CEQA analysis purposes. Therefore, a numerical construction threshold based on Federal Transit Administration (FTA) Transit Noise and Vibration Impact Assessment Manual is used for analysis of daytime construction impacts, as discussed below. According to the FTA, local noise ordinances are typically not very useful in evaluating construction noise. They usually relate to nuisance and hours of allowed activity, and sometimes specify limits in terms of maximum levels, but are generally not practical for assessing the impact of a construction project. Project construction noise criteria should account for the existing noise. the FTA considers a daytime exterior construction noise level of 80 dBA Leq(8-hour) for noise sensitive residential land uses, 85 dBA Leq(8-hour) for commercial uses, and 90 dBA Leq(8-hour) for industrial uses. Construction noise would affect adjacent light industrial/warehouse land uses. Project construction noise levels at nearby sensitive receptors were calculated using the FTA methodology. Modeled construction noise levels reach up to 70.7 dBA Leq at the property line shared with the industrial warehouse land use to the north, up to 68.5 dBA Leq at the property Hilton Drive Warehouses Project February 3, 2026 Page 14 line shared with the industrial land use to the south, and up to 77.9 dBA Leq at the industrial properties located to the east and west. Project construction noise levels will not exceed the FTA 90 dBA Leq (8-hour) construction noise standard for impacts to residential land uses. This impact would be less than significant. Construction Noise Off-site Project construction would generate up to 31 employee trips and 12 truck trips per day traveling to and from the project site via Hilton Avenue, Redwood Avenue and Hemlock Avenue to Foothill Boulevard where project trips would result in negligible increases in ambient noise levels. There are existing residential land uses along Redwood Avenue and Hemlock Avenue that would be exposed to these trips. Existing noise levels and existing plus project construction noise levels were calculated using FHWA methodology . The existing noise levels range between 62.9 and 65.6 dBA CNEL and existing plus project construction noise levels would range between 63.2 and 65.7 dBA CNEL. Project construction traffic would result in a less than 1 dB increase along both roadways and would not exceed the applicable FICON noise increase thresholds. Impacts would be less than significant and no mitigation measures are required. Operational Noise The Proposed Project is considered an allowed use in accordance with the General Plan and West End Specific Plan standards, and the proposed warehouses are compatible with surrounding industrial developments. Noise generated by the Project would be consistent with existing industrial noise levels and would occur within an established industrial area. As a result, anticipated warehouse-related noise would not exceed the City’s noise standards and would not introduce a new substantial noise source compared to existing conditions. Impacts would be less than significant. AIR QUALITY This analysis is based on the California Emissions Estimator Model (CalEEMod) version 2022 outputs (Appendix D). Regulatory Requirements The Project Site is located in the South Coast Air Basin (SCAB). The South Coast Air Quality Management District (SCAQMD) has jurisdiction over air quality issues and regulations within the SCAB. An evaluation of potential air quality impacts related to the Proposed Project (Warehouse Development) was prepared. The CalEEMod recommended by the SCAQMD for all general development projects within the SCAB was used to estimate project emissions. Operational Emissions As stated, based on the City of Fontana Traffic Engineering Division Traffic Impact Analysis (TIA) Guidelines for Vehicle Miles Traveled (VMT) and Level of Service (LOS) Assessment, dated October 2020, all truck trips were converted to passenger car equivalents (PCEs) using a 2.0 PCE factor for 2‐axle trucks, 2.5 for 3‐axle trucks, and 3.0 for 4‐ and more axle trucks. The Proposed Hilton Drive Warehouses Project February 3, 2026 Page 15 Project is anticipated to generate 20 PCE trips in the a.m. peak hour, 23 PCE trips in the p.m. peak hour, and 195 daily PCE rips. The Proposed Project’s operation and construction emissions were screened using the California Emissions Estimator Model (CalEEMod) version 2022 prepared in collaboration with the SCAQMD (see Attachment B). Construction Emissions CalEEMod was utilized to estimate the on-site and off-site construction emissions. The emissions incorporate Rules 402 and 403 for fugitive dust by default as required during construction. The criteria pollutants screened for include reactive organic gases (ROG), nitrous oxides (NOx), carbon monoxide (CO), sulfur dioxide (SO2), and fine and respirable particulates (PM10 and PM2.5). Two of the analyzed pollutants, ROG and NOx, are ozone precursors. These criteria pollutants are key contributors to air quality degradation and can have potential significant environmental and public health impacts. Screening for these pollutants helps identify potential air quality impacts to protect public health, and comply with SCAQMD Thresholds. Construction is anticipated to start late 2026 and end in late 2027. Construction and activities associated with the Proposed Project would have the potential to generate air emissions and toxic air contaminant emissions. The resulting emissions generated during construction and demolition of the Proposed Project are shown in Table 2 and Table 3 below which represent summer and winter conditions respectively. Table 2 Maximum Summer Construction Emissions (Pounds per Day) Equipment ROG NOX CO SO2 PM10 PM2.5 2026 Max 1.2 10.4 15.4 0 0.9 0.5 SCAQMD Threshold 75 100 550 150 150 55 Significance No No No No No No Source: CalEEMod 2022 Summer Construction Emissions. Table 3 Maximum Winter Construction Emissions (Pounds per Day) Equipment ROG NOX CO SO2 PM10 PM2.5 2026 Max 3.2 29.2 29.8 0.1 9.1 5.1 2026 Max 38.0 10.0 15.0 0.0 0.9 0.4 SCAQMD Threshold 75 100 550 150 150 55 Significance No No No No No No Source: CalEEMod 2022 Winter Construction Emissions. Notes: ROG = Reactive Organic Gases NOx = Nitrogen Oxides CO = Carbon Monoxide SO2 = Sulfur Dioxides PM = Particulate Matter SCAQMD = South Coast Air Quality Management District Hilton Drive Warehouses Project February 3, 2026 Page 16 As shown in Table 2 and 3, both summer and winter construction emissions are below SCAQMD thresholds. The Proposed Project does not exceed applicable SCAQMD regional thresholds during construction activities. Therefore, impacts are considered less than significant. Operational Emissions Operational emissions are categorized as energy (generation and distribution of energy to the end use), area (operational use of the project), and mobile (vehicle trips). Operational emissions were estimated using the CalEEMod version 2022 and are listed in Table 4 and 5, below. Table 4 Summer Operational Emissions Summary (Pounds Per Day) Source ROG NOX CO SO2 PM10 PM2.5 Mobile 0 0 0 0 0 0 Area 2.3 0 3.2 0 0 0 Energy 0.1 0.9 0.7 0 0.1 0.1 Totals 2.4 0.9 3.9 0 0.1 0.1 SCAQMD Threshold 55 55 550 150 150 55 Significant No No No No No No Source: CalEEMod 2022 Summer Emissions Table 5 Winter Operational Emissions Summary (Pounds Per Day) Source ROG NOX CO SO2 PM10 PM2.5 Mobile 0 0 0 0 0 0 Area 1.8 - - - - - Energy 0.1 0.9 0.7 0 0.1 0.1 Totals 1.8 0.9 0.7 0 0.1 0.1 SCAQMD Threshold 55 55 550 150 150 55 Significant No No No No No No Source: CalEEMod 2022 Winter Emissions As shown, both summer and winter season operational emissions are below SCAQMD thresholds. The Proposed Project would not exceed any SCAQMD thresholds for criteria pollutants during construction (see Table 2, 3). Operational emissions are less than significant and would not result in a cumulatively considerable net increase of any criteria pollutant (see Tables 4 and 5). Therefore, less than significant adverse impacts are identified or anticipated, and no mitigation measures are required. SCAQMD has developed a methodology to assess the localized impacts of emissions from a Proposed Project as outlined within the Final Localized Significance Threshold (LST) Methodology report; completed in June 2003 and revised in July 2008. The use of LSTs is voluntary, to be implemented at the discretion of local public agencies acting as a lead agency pursuant to CEQA. LSTs apply to projects that must undergo CEQA or the National Environmental Policy Act (NEPA) and are five acres or less. LST methodology is incorporated to represent worst- Hilton Drive Warehouses Project February 3, 2026 Page 17 case scenario emissions thresholds. CalEEMod was used to estimate the on-site and off-site construction emissions. The LSTs were developed to analyze the significance of potential air quality impacts of a project to sensitive receptors (i.e. schools, single family residences, etc.) and provide screening tables for small projects (one, two, or five acres). Projects are evaluated based on geographic location and distance from the sensitive receptor (25, 50, 100, 200, or 500 meters from the site). For the purposes of a CEQA analysis, the SCAQMD considers a sensitive receptor to be a receptor such as a residence, hospital, convalescent facility or anywhere that it is possible for an individual to remain for 24 hours. Additionally, schools, playgrounds, childcare centers, and athletic facilities can also be considered as sensitive receptors. Commercial and industrial facilities are not included in the definition of sensitive receptor because employees do not typically remain on-site for a full 24 hours, but are usually present for shorter periods of time, such as eight hours. The Project Site is approximately 4.0 acres. For a conservative, worst-case analysis, the “5-acre” LSTs were applied, as larger sites correspond to higher screening thresholds. The nearest sensitive receptor is a motel located approximately 100 meters southeast of the Site, so LSTs were evaluated at this distance. The Proposed Project’s construction and operational emissions with the appropriate LST are presented in Table 6 “Localized Significant Threshold”. Table 6 Localized Significance Thresholds (Pounds Per Day) Source NOx CO PM10 PM2.5 Construction Emissions (Max. from Tables 2, 3) 38.0 29.2 0.9 5.1 Operational Emissions (Max. Total from Tables 4, 5)1 1.8 4.6 0.2 0.2 Highest Value (lbs/day) 38.0 29.2 0.9 0.2 5.1 0.2 LST Threshold 378 5,188 65* 17† 16* 5† Greater Than Threshold No No No No No No Sources: CalEEMod.2022 Summer and Winter Emissions; SCAQMD Final Localized Significance Threshold Methodology; SCAQMD Mass Rate Look-up Tables for a 5-acre site in SRA No. 34 Central San Bernardino Valley, distance of 25 meters. Note: PM10 and PM2.5 emissions are separated into construction and operational thresholds in accordance with the SCAQMD Mass Rate LST Look-up Tables. * Construction emissions LST † Operational emissions LST Per LST Methodology, mobile source emissions do not need to be included except for land use emissions and onsite vehicle emissions. It is estimated that approximately 10 percent of mobile emissions will occur on the Project Site. As shown in Table 6, both construction and operational emissions are well below the applicable thresholds. As such, the potential for adverse health effects is minimal. Therefore, a Health Risk Assessment (HRA) is not required for the Proposed Project. Therefore, no significant adverse air quality impacts are identified or anticipated, and no mitigation measures are required. Hilton Drive Warehouses Project February 3, 2026 Page 18 WATER QUALITY A Hydrology Study was prepared for the Proposed Project dated August 16, 2023, revised July 22, 2024 by Land Development Design Company, LLC (LDDC), the results are summarized herein (Appendix E). The Proposed Project would disturb approximately four (4) acres and would therefore be subject to the National Pollutant Discharge Elimination System (NPDES) permit. The State of California is authorized to administer various aspects of the NPDES. Const ruction activities covered under the State’s General Construction permit include the removal of vegetation, grading, excavating, or any other activity that causes the disturbance of one acre or more. The General Construction permit requires recipients to reduce or eliminate non-storm water discharges into stormwater systems, and to develop and implement a SWPPP. The SWPPP is based on the principles of Best Management Practices (BMPs) to control and abate pollutants. The SWPPP must include BMPs to prevent Project-related pollutants from impacting surface waters. The RWQCB has issued an area wide NPDES Storm Water Permit for the County of San Bernardino, the San Bernardino County Flood Control District and the unincorporated areas of San Bernardino County. The implementation of NPDES permits ensures that the State and Federal mandatory standards for the maintenance of clean water are met. The State of California is authorized to administer various aspects of the National Pollutant Discharge Elimination System (NPDES). Construction activities covered under the State’s General Construction permit include removal of vegetation, grading, excavating, or any other activity that causes the disturbance of one acre or more. Since the Proposed Project would disturb approximately 4.0 acres, it is subject to the NPDES permit requirements. Pursuant to Fontana Municipal Code (FMC) Section 23-516, Compliance with Mandated Best Management Practices, operation of the Proposed Project would be required to comply with applicable BMPs that may include waste storage areas to reduce pollution introduction, outdoor material storage areas to reduce pollution introduction, finish grade of landscaped areas at a minimum of 1-2 inches below top of curb, sidewalk, or pavement, use of efficient irrigation systems and landscape design, water conservation, smart controllers, and source control. Overall, upon compliance with FMC Chapter 23, Article 9, Preventing Discharge of Pollutants into Storm Drains, and implementation of the BMPs, project construction and operations would not result in any significant effects relating to water quality. Therefore, impacts regarding water quality are considered less than significant. As demonstrated above, approval of the project would not result in any significant effects relating to traffic, noise, air quality, or water quality and therefore Criteria (d) is met. Criterion (e) The site can be adequately served by all required utilities and public services. The City of Fontana Public Works Department provides wastewater and stormwater collection services and oversees solid waste collection services (contracted to Burrtec), and the Fontana Water Company provides water services to the Project Site. Southern California Edison and Southern California Gas Company would provide electricity and natural gas services, respectively. Additionally, the project would be served by the Fontana Fire Protection District for fire protection services, and the Fontana Police Department for police protection services. The Project Site is located within the service area of the Fontana Water Company (FWC) as a division of the San Gabriel Valley Water Company. The Proposed Project would include Hilton Drive Warehouses Project February 3, 2026 Page 19 connection to existing FWC water mains along Hilton Drive. The Proposed Project would be served by the City of Fontana for sewer service; existing service lines are located in Hilton Drive. Thus, the site would be adequately served by all required utilities and services and the project would meet Criterion (e) requirements. The following analysis considers whether exceptions to the Class 32 Categorical Exemption apply: Exception (a) A categorical exemption shall not be used for a project under Classes 3, 4, 5, 6, and 11, if the project may impact on an environmental resource of hazardous or critical concern where designated, precisely mapped, and officially adopted pursuant to law by federal, state, or local agencies. The City is proposing a categorical exemption under Class 32 and not Classes 3, 4, 5, 6, or 11. Therefore, Exception (a) would not apply to the project. Exception (b) A categorical exemption shall not be used for a project when the cumulative impact of successive projects of the same type in the same place, over time is significant. For this Exception, that disallows a categorical exemption to be used for a project when the cumulative impact of successive projects “of the same type in the same place over time” has a narrower definition than the broad definition of cumulative impacts as defined and applied elsewhere in CEQA practice. Further in Robinson v. City & County of San Francisco (2012) 208 Cal.App.4th 950, 958, the court held that the phrase “in the same place” should be interpreted to refer to the area where the environmental impact will occur and that the affected area will depend on the nature of the environmental impact. The project involves the development of two industrial warehouses. The Project Site is located within a developed area of the City’s west end area consisting predominately industrial uses. Based on the analysis herein, the project would not considerably contribute to any significant impacts. As such, project impacts are not cumulatively considerable, and Exception Criterion (b) would not apply to the project. Exception (c) A categorical exemption shall not be used for an activity where there is a reasonable possibility that the activity will have a significant effect on the environment due to unusual circumstances. This exception applies only when both unusual circumstances and a significant impact as a result of those unusual circumstances are shown. (Berkeley Hillside Preservation v City of Berkeley “Berkeley Hillside” (2015) 60 Cal.4th 1086, 1104) As the Supreme Court explained in Berkeley Hillside, the City’s determination whether this exception applies involves two distinct questions: (1) whether the project presents unusual circumstances, and (2) if the project presents unusual circumstances, whether there is a reasonable possibility that a significant environmental impact will result from those unusual circumstances. (60 Cal.4th at 1098.) The City considers the second prong of this two‐part test only if it first finds that some circumstance of the project is unusual. If the City finds that the project does not present unusual circumstances, the exception is inapplicable, and the agency need not reach the second prong of the two‐part test. Hilton Drive Warehouses Project February 3, 2026 Page 20 Here, the City’s determination whether the proposed project presents unusual circumstances involves a factual inquiry under which the City weighs the relevant evidence to determine if those circumstances are unusual in comparison with other projects in the CEQA Guidelines Section 15332. The Proposed Project would not be used for an activity where there is a reasonable possibility that the activity will have a significant effect on the environment due to unusual circumstances and involves construction activities typical for other similar projects in the City that have been approved pursuant to the CEQA Guidelines section 15332 exemption. An example of a similar project approved by the City pursuant to the CEQA Guidelines Section 15332 exemption is the warehouse project (MCN22-057), which was approved by the Fontana Planning Commission on December 20, 2022. The summer and winter season operational and construction emissions are below SCAQMD thresholds. The Proposed Project would not exceed any SCAQMD thresholds for criteria pollutants. Additionally, the Proposed Project’s localized emissions are not anticipated to exceed Localized Significance Thresholds because emissions would be temporary, limited in intensity, and would occur over a short duration. Construction and operational activities would comply with applicable air quality regulations and incorporate standard best management practices, which would minimize pollutant concentrations near the Project site. Additionally, the distance to nearby sensitive receptors and prevailing dispersion conditions would reduce the potential for localized air quality impacts. Therefore, localized emissions would remain below significance thresholds. The Project Site is located within the developed western area of the City and is mostly surrounded by urban land uses. There are no sensitive natural communities on the Project Site. No endangered, rare, or threatened species, as defined in CEQA Guidelines Section 15380, are expected to inhabit the site. The site is not within the designated critical habitat of any species. As such, the Project Site has no value as habitat for endangered, rare, or threatened species. With implementation of the Conditions of Approval, impacts to biological resources would be less than significant. The existing noise levels range between 62.9 and 65.6 dBA CNEL and existing plus project construction noise levels would range between 63.2 and 65.7 dBA CNEL. Project construction traffic would result in a less than 1 dB increase along both roadways and would not exceed the applicable FICON noise increase thresholds. Impacts would be less than significant and no mitigation measures are required. The Proposed Project is considered an allowed use in accordance with the General Plan and West End Specific Plan standards. The proposed warehouses show compatibility with the surrounding industrial developments. Therefore, anticipated warehouses noise associated with the project is not expected to exceed the City’s noise standards and would not introduce a new substantial noise source compared to existing conditions. Impacts would be less than significant. The Proposed Project satisfies the City-established vehicle miles traveled (VMT) screening criteria for projects generating less than 500 daily trip. The Proposed Project is forecast to generate approximately 99 daily vehicle trips, including 9 vehicle trips during the AM peak hour and 11 vehicle trips during the PM peak hour which equates to approximately 150 daily PCE trips, including 13 PCE trips during the AM peak hour and 15 PCE trips during the PM peak hour.. Therefore, based on the City’s guidelines, the project would be screened out from a VMT analysis based on the daily trip thresholds and is anticipated to have a less than significant VMT impact. As such, there is no evidence that the Proposed Project will, result in a significant effect on the environment. Hilton Drive Warehouses Project February 3, 2026 Page 21 Exception (d) A categorical exemption shall not be used for a project which may result in damage to scenic resources, including but not limited to, trees, historic buildings, rock outcroppings, or similar resources, within a highway officially designated as a State scenic highway. Based on the San Bernardino Countywide Map: NR-3 Scenic Routes & Highways, there are no scenic highways near the Project Site or within the City of Fontana.6 The closest officially designated or eligible State scenic highway is Lytle Creek Canyon Drive located approximately 6.0 miles to the north in Rancho Cucamonga, San Bernadino County. Given the distance of the Project Site to Lytle Creek Canyon Drive and intervening topography, vegetation, and structures, the project would not be visible. As such, the Proposed Project would have no impact on scenic resources within a State scenic highway and Exception (d) would not apply. Exception (e) A categorical exemption shall not be used for a project located on a site which is included on any list complied pursuant to Section 65962.5 of the Government Code. Government Code Section 65962.5 requires the Department of Toxic Substance Control and State Water Resources Control Board to compile and update a regulatory site listing (per the criteria of the Section). The California Department of Health Services is also required to compile and update, as appropriate, a list of all public drinking water wells that contain detectable levels of organic contaminants and that are subject to water analysis pursuant to Health and Safety Code Section 116395. Section 65962.5 requires the local enforcement agency, as designated pursuant to Section 18051 of Title 14 of the CCR, to compile, as appropriate, a list of all solid waste disposal facilities from which there is a known migration of hazardous waste. The Project Site is not currently listed pursuant to Government Code Section 65962.5 (Cortese List).7 As such, Exception (e) would not apply. Exception (f) A categorical exemption shall not be used for a project which may cause a substantial adverse change in the significance of a historical resource. A Cultural Resources Report dated March 2022 were prepared for the Proposed Project by LSA Associates. (Appendix F). The findings are summarized herein. According to LSA, the cultural resources records search was completed for the project area by the South Central Coastal Information Center (SCCIC) located at California State University, Fullerton. It included a review of all recorded historic and prehistoric archaeological sites within one mile of the project. Data from the SCCIC indicate there have been 23 cultural resource studies previously conducted within one mile of the proposed project, three of which included the entirety of the project area. Although no cultural resources are documented within the project area, 21 built environment resources are recorded within one mile. The nearest is approximately 100 feet south of the project. Only one of the resources is listed in the BERD (36-015392). No prehistoric resources are documented within a mile. A cultural resources records search, additional research, and a field survey were conducted for the project area. No cultural resources are documented within the project parcel and none was 6 San Bernardino Countywide Map:NR-3 Scenic Routes & Highways. Accessed July 25, 2025. 7 California Environmental Protection Agency, Cortese Listing, https://calepa.ca.gov/sitecleanup/corteselist/, accessed July 25, 2025. Hilton Drive Warehouses Project February 3, 2026 Page 22 identified by the survey. No prehistoric resources were documented within a mile, and sensitivity for in situ undocumented subsurface resources is low. Therefore, no further investigation or archaeological monitoring is recommended. However, it is recommended that archaeological monitoring consistent with the City of Fontana’s standard condition for cultural resources be implemented. Below is the City of Fontana’s standard condition for cultural resources monitoring: 1. Upon discovery of any tribal cultural or archaeological resources, cease construction activities in the immediate vicinity of the find until the find can be assessed. All tribal cultural and archaeological resources unearthed by project construction activities shall be evaluated by the qualified archaeologist and tribal monitor/consultant. If the resources are Native American in origin, interested Tribes (as a result of correspondence with area Tribes) shall coordinate with the landowner regarding treatment and curation of these resources. Typically, the Tribe will request preservation in place or recovery for educational purposes. Work may continue on other parts of the project while evaluation takes place. Preservation in place shall be the preferred manner of treatment. If preservation in place is not feasible, treatment may include implementation of archaeological data recovery excavation to remove the resource along the subsequent laboratory processing and analysis. All Tribal Cultural Resources shall be returned to the Tribe. Any historic archaeological material that is not Native American in origin shall be curated at a public, non-profit institution with a research interest in the materials, if such an institution agrees to accept the material. If no institution accepts the archaeological material, they shall be offered to the Tribe or a local school or historical society in the area for educational purposes. Archaeological and Native American monitoring and excavation during construction projects shall be consistent with current professional standards. All feasible care to avoid any unnecessary disturbance, physical modification, or separation of human remains and associated funerary objects shall be taken. Principal personnel shall meet the Secretary of the Interior standards for archaeology and have a minimum of 10 years’ experience as a principal investigator working with Native American archaeological sites in southern California. The Qualified Archaeologist shall ensure that all other personnel are appropriately trained and qualified. As such, Exception (f) would not apply. CONCLUSION As detailed above, construction and operations of the Project meets the five criteria required stipulated in CEQA Guidelines Section 15332 to qualify for a Class 32 CE. Hilton Drive Warehouses Project February 3, 2026 Page 23 REFERENCES Gandini Group, Inc., Hilton Industrial Facility Project Traffic Memorandum, December 9, 2025 Gandini Group, Inc., Hilton Industrial Facility Project Focused Noise Impact Analysis, December 23, 2025 LSA Associates, Inc., Cultural Resources Report for the Hilton Industrial Facility Business Park Project, March 2022 Land Development Design Company, LLC., Hydrology Study for Lot 2. Tract 13643 APN1110- 151-03 Memorandum, February August 16,2023, revised July 22, 2024 California Environmental Protection Agency, Cortese Listing, https://calepa.ca.gov/sitecleanup/corteselist/, accessed July 2025. California Regional Water Quality Control Board Los Angeles Region, Order R8-2010-0036 (NPDES Permit No. CAS618036), January 29, 2010, https://www.waterboards.ca.gov/santaana/board_decisions/adopted_orders/orders/2010 /10_036_sbc_ms4_permit_01_29_10.pdf, accessed July 20 2025. City of Fontana, City of Fontana General Plan Land Use Map, https://www.fontanaca.gov/DocumentCenter/View/44297, accessed July 2025. City of Fontana, City of Fontana Zoning District Map, https://www.fontanaca.gov/DocumentCenter/View/30623/Zoning-District-Map, July 2025. City of Fontana, Fontana Forward General Plan Update 2015-2035, November 13, 2018. City of Fontana, Fontana Forward General Plan Update 2015-2035 Draft Environmental Impact Report, June 2018. City of Fontana, Fontana Forward General Plan Update 2015-2045, Land Use, Zoning, and Urban Design Element, updated July 23, 2023 City of Fontana, Form Based Code Districts, https://www.fontanaca.gov/DocumentCenter/View/32043/All-Form-Based-Code-Districts, September 10, 2019. Jennings Environmental , LLC Biological Resources Assessment for Hilton Drive Industrial Project, September 10, 2025 Lilburn Corporation, CalEEMod Detailed Report, July 2025. San Bernardino Countywide Plan Maps, Natural Resources- NR-3 Scenic Routes & Highways, accessed July 2025. Hilton Drive Warehouses Project February 3, 2026 Page 24 APPENDICES Appendix A Biological Resources Assessment Letter Appendix B Traffic Memorandum Appendix C Noise Impact Analysis Appendix D CalEEMod Detailed Report Appendix E Hydrology Study Appendix F Cultural Resources Study APPENDIX A BIOLOGICAL RESOURCES ASSESSMENT LETTER 35414 Acacia Ave. Yucaipa, CA 92399 (909) 534-4547 www.jennings-environmental.com Jennings Environmental, LLC P a g e | 1 September 10, 2025 Lilburn Corporation Attn: Cheryl Tubbs 1905 Business Center Drive San Bernardino, CA 92408 RE: BIOLOGICAL RESOURCES ASSESSMENT LETTER REPORT FOR THE HILTON DRIVE INDUSTRIAL PROJECT IN THE CITY OF FONTANA, SAN BERNARDINO COUNTY, CALIFORNIA Dear Ms. Tubbs, Jennings Environmental was retained by Lilburn Corporation (Lilburn) to conduct a Biological Resources Assessment of the proposed Hilton Drive Industrial Project (Project). The survey identified vegetation communities, the potential for the occurrence of special status species, or habitats that could support special status wildlife species, and recorded all plants and animals observed or detected within the Project boundary. This biological resources assessment is designed to address the potential effects of the proposed project on designated critical habitats and/or any species currently listed or formally proposed for listing as endangered or threatened under the federal Endangered Species Act (ESA) and the California Endangered Species Act (CESA) or species designated as sensitive by the California Department of Fish and Wildlife (CDFW) or the California Native Plant Society (CNPS). Information contained in this document is in accordance with accepted scientific and technical standards that are consistent with the requirements of the United States Fish and Wildlife Service (USFWS) and (CDFW). Project Description and Location The proposed Project is to develop the 3.37-acre site with two industrial buildings. Both buildings will have office space, warehouse space, and trucking bays. Additional improvements include parking, landscaping, and lighting. The Project is generally located in Section 2, Township 1 South, Range 6 West, and is depicted in the Fontana U.S. Geological Survey’s (USGS) 7.5 -minute topographic map. More specifically, the project is located within Assessor Parcel Number (APN) 1110-151-03, within the City of Fontana, San Bernardino County, California. The site is bordered by commercial and industrial uses on all sides, with a Southern California Edison office and storage yard to the west . Methods Prior to performing the updated field survey, existing documentation relevant to the Project site was reviewed. The most recent records of the California Natural Diversity Database (CNDDB) managed by CDFW (CDFW 2025), the USFWS Critical Habitat Mapper (USFWS 2025), and the California Native Biological Resources Assessment for Hilton Drive Industrial Project Jennings Environmental, LLC P a g e | 2 Plant Society’s Electronic Inventory (CNPSEI) of Rare and Endangered Vascular Plants of California (CNPS 2024) were reviewed for the following quadrangles containing and surrounding the Project site: Fontana, Devore, Guasti, and Cucamonga Peak USGS 7.5-minute quadrangles. The Devore, Guasti, and Cucamonga Peak quads were included in this search due to the site’s proximity to their borders. These databases contain records of reported occurrences of rare, federal- or state-listed endangered or threatened species, California Species of Concern (SSC), or otherwise special status species or habitats that may occur within or in the immediate vicinity of the Project site. Jennings biologist, Gene Jennings, conducted the general reconnaissance survey within the Project site to identify the potential for the occurrence of special status species, vegetation communities, or habitats that could support special status wildlife sp ecies. The surveys were conducted on foot, throughout the Project site between 0730 and 0830 hours on September 10, 2025. Weather conditions during the survey included temperatures ranging from 62 – 64 degrees Fahrenheit, with cloudy skies, no precipitation, and 0 to 2 miles per hour winds. Photographs of the Project site were taken to document existing conditions and are included in Attachment B. Results Habitat and Wildlife The habitat on-site consists of disturbed ruderal vegetation and bare gravel ground. The site showed signs of previous development, concrete pads. Additionally, the site is highly disturbed, and soils consist of imported fill material, likely from the surrounding developed sites. T he site is also being maintained through weed abatement (mowing or weed whacking) as evidenced by the minimal amount of vegetation on-site and dried, broken plant parts. Plant species observed on site are: tumbleweed (Salsola tragus), lemon gum (Corymbia citriodora), telegraphweed (Heterotheca grandiflora), dove weed (Croton setiger), Mediterranean mustard (Hirschfeldia incana), desert poplar (Populus euphratica), and flatspine burragweed (Ambrosia acanthicarpa). None of these plants are documented as rare using the CNPS California Rare Plant Rank (CRPR) of 1 or 2. Animal species observed or otherwise detected on or in the vicinity of the project site during the surveys included: mourning dove (Zenaida macroura), common raven (Corvus corax), Anna’s hummingbird (Calypte anna), house finch (Haemorhous mexicanus), and house sparrow (Passer domesticus). None of the animal species documented on -site are considered rare, endangered, or threatened. The Project site is located within a largely developed portion of the City of Fontana. As mentioned above, the site is continually maintained, and portions were previously developed. As such the site offers no habitat for any listed species. CNDDB Results According to the CNDDB, CNPSEI, and other relevant literature and databases, 87 sensitive or rare species, 18 of which are listed as threatened or endangered, and 5 sensitive habitats, have been documented in the Fontana, Devore, Guasti, and Cucamonga Peak quads. This list of sensitive species and habitats includes any State and/or federally -listed threatened or endangered species, CDFW-designated Species of Special Concern (SSC), and otherwise Special Animals. “Special Animals” is a general term that refers to all of the taxa the CNDDB is interested in tracking, regardless of their legal or protection status. This list is also referred to as the list of “species at risk” or “speci al status species.” The CDFW considers the taxa on this list to be those of greatest conservation need. Biological Resources Assessment for Hilton Drive Industrial Project Jennings Environmental, LLC P a g e | 3 An analysis of the likelihood of the occurrence of all CNDDB-sensitive species documented in the Fontana, Devore, Guasti, and Cucamonga Peak quads is provided in Table 1, in Attachment C. This analysis takes into account species range as well as documentation within the vicinity of the project area and includes the habitat requirements for each species and the potential for their occurrence on the site, based on required habitat elements and range relative to the current site conditions. According to the databases, no sensitive habitat, including US FWS-designated critical habitat, occurs within or adjacent to the project site. Designated Critical Habitat and San Bernardino County Biotic Resources Overlay The site is not located within or adjacent to any USFWS -designated Critical Habitat. No further action is required. The site is within the identified boundary for burrowing owl on the San Bernardino County Biotic Resources Overlay. See below for findings related to this species, based on the completed habitat assessment. Special Status Species Background Burrowing owl (BUOW) {Athene cunicularia} [State – Candidate Endangered] The BUOW is a state and federal SSC. This owl is a mottled, brownish , sand-colored, dove-sized raptor, with large, yellow eyes, a rounded head lacking ear tufts, white eyebrows, and long legs compared to other owl species. It is a ground-dwelling owl typically found in arid prairies, fields, and open areas where vegetation is sparse and low to the ground. The BUOW is heavily dependent upon the presence of mammal burrows, with ground squirrel burrows being a common choice, in its habitat to provide shelter from predators, and inclement weather, and to provide a nesting place. They are also known to make use of human-created structures, such as cement culverts and pipes, for burrows. BUOW spends a great deal of time standing on dirt mounds at the entrance to a burrow or perched on a fence post or other low-to-the-ground perch from which they hunt for prey. BUOW frequently hunt by hovering in place above the ground and dropping on their prey from above. They feed primarily on insects such as grasshoppers, June beetles, and moths, but will also take small rodents, birds, and reptiles. They are active during the day and night but are considered a crepuscular owl; generally observed in the early morning hours or at twilight. The breeding season for BUOW is February 1 through August 31. Up to 11, but typically 7 to 9, eggs are laid in a burrow, abandoned pipe, or other subterranean hollows where incubation is complete in 28 -30 days. Young BUOW fledges in 44 days. The BUOW is considered a migratory species in portions of its range, which includes western North America from Canada to Mexico, and east to Texas and Louisiana. BUOW populations in California are considered to be sedentary or locally migratory. Throughout its range, the BUOW is vulnerable to habitat loss, predation, vehicular collisions, and destruction of burrow sites, and the poisoning of ground squirrels . BUOW has disappeared from significant portions of their range in the last 15 years. The BUOW is listed under the California Endangered Species Act as a candidate species. The BUOW is a migratory bird protected by the international treaty under the Migratory Bird Treaty Act of 1918 and by State law under the California Fish and Game Code (CDFG Code #3513 & #3503.5). Biological Resources Assessment for Hilton Drive Industrial Project Jennings Environmental, LLC P a g e | 4 Findings: The conditions present on-site are not suitable for BUOW. California ground squirrels, a burrow surrogate species, were not observed on-site. No evidence of BUOW was found in the survey area. No burrows of appropriate size, aspect, or shape were located a nd no BUOW pellets, feathers, or whitewash were found. No burrowing owl individuals were observed. Additionally, the site does not contain friable soils, as evidence of gravel and cobble fill was found on-site. These factors preclude this species from the site. Therefore, no further surveys or mitigation measures are required or recommended. Conclusions and Recommendations Based on the literature review and personal observations made in the immediate vicinity, no rare, State and/or federally-listed threatened or endangered species are documented/or expected to occur within the Project site. Additionally, no plant species with the CNPS California Rare Plant Rank (CRPR) of 1 or 2 were observed on-site or documented to occur on-site in the relevant databases. No other sensitive species were observed within the project area or buffer area. The Project Site is highly disturbed. The habitat on-site is ruderal/disturbed vegetation with gravel surfaces. The site offers no suitable habitat for any rare sensitive species including listed species. Therefore, no further surveys are required. Nesting Birds Although the site is highly disturbed, there is some habitat within the Project site and adjacent area that is suitable for nesting birds in general. In general, the following condition of approval should be implemented prior to construction. Nesting bird season generally extends from February 1 through September 15 in southern California and specifically, March 15 through August 31 for migratory passerine birds. To avoid impacts to nesting birds (common and special status) during the nesting season, a qualified Avian Biologist will conduct pre ‐construction Nesting Bird Surveys (NBS) prior to Project‐related disturbance to nestable vegetation to identify any active nests. If no active nests are found, no further action will be required. If an active nest is found, the biologist will set appropriate no‐work buffers around the nest which will be based on the nesting species, its sensitivity to disturbance, nesting stage, and expected types, intensity, and duration of the disturbance. The nests and buffer zones shall be field -checked weekly by a qualified biological monitor. The approved no‐work buffer zone shall be clearly marked in the field, within which no disturbance activity shall commence until the qualified biologist has determined the young birds have successfully fledged and the nest is inactive. Certification I hereby certify that the statements furnished herein, and in the attached exhibits present data and information required for this analysis to the best of my ability, and the facts, statements, and information presented are true and correct to the best of my knowledge and belief. This report was prepared in accordance with professional requirements and standards. Fieldwork conducted for this assessment was performed by me. I certify that I have not signed a non-disclosure or consultant confidentiality agreement with the project proponent and that I have no financial interest in the project. Biological Resources Assessment for Hilton Drive Industrial Project Jennings Environmental, LLC P a g e | 5 Please do not hesitate to contact me at 909 -534-4547 should you have any questions or require further information. Sincerely, Gene Jennings Principal/Regulatory Specialist Attachments: Attachment A – Figures Attachment B – Site Photos Attachment C – Table 1 Biological Resources Assessment for Hilton Drive Industrial Project Jennings Environmental, LLC P a g e | 6 Attachment A - Figures Biological Resources Assessment for Hilton Drive Industrial Project Jennings Environmental, LLC P a g e | 7 Biological Resources Assessment for Hilton Drive Industrial Project Jennings Environmental, LLC P a g e | 8 Biological Resources Assessment for Hilton Drive Industrial Project Jennings Environmental, LLC P a g e | 9 Attachment B - Photos Biological Resources Assessment for Hilton Drive Industrial Project Jennings Environmental, LLC P a g e | 10 Photo 1 – Southwest corner of Project site, facing northeast. Photo 2 – Center of western edge of Project site, facing east. Biological Resources Assessment for Hilton Drive Industrial Project Jennings Environmental, LLC P a g e | 11 Photo 3 – Center of eastern edge of Project site, facing west. Photo 4 – Center of eastern edge of Project site, facing northwest. Biological Resources Assessment for Hilton Drive Industrial Project Jennings Environmental, LLC P a g e | 12 Attachment C – Table 1 Biological Resources Assessment for Hilton Drive Industrial Project Jennings Environmental, LLC P a g e | 13 Scientific Name Common Name Federal/State Status Other Status Habitat Potential to Occur Agelaius tricolor tricolored blackbird None, Threatened G1G2, S2, CDFW-SSC Highly colonial species, most numerous in Central Valley and vicinity. Largely endemic to California. Requires open water, protected nesting substrate, and foraging area with insect prey within a few km of the colony. Suitable habitat for this species does not occur on site. As such, this species is considered absent from the Project site. Ambrosia monogyra singlewhorl burrobrush None, None G5, S2, 2B.2 Chaparral, Sonoran desert scrub. Sandy soils. 5-475 m. Suitable habitat for this species does not occur on site. As such, this species is considered absent from the Project site. Anniella stebbinsi Southern California legless lizard None, None G3, S3, CDFW-SSC Generally south of the Transverse Range, extending to northwestern Baja California. Occurs in sandy or loose loamy soils under sparse vegetation. Disjunct populations in the Tehachapi and Piute Mountains in Kern County. Variety of habitats; generally in moist, loose soil. They prefer soils with a high moisture content. Suitable habitat for this species does not occur on site. As such, this species is considered absent from the Project site. Arctostaphylos glandulosa ssp. gabrielensis San Gabriel manzanita None, None G5T3, S3, 1B.2 Chaparral. Rocky outcrops; can be dominant shrub where it occurs. 960- 2015 m. Suitable habitat for this species does not occur on site. As such, this species is considered absent from the Project site. Biological Resources Assessment for Hilton Drive Industrial Project Jennings Environmental, LLC P a g e | 14 Scientific Name Common Name Federal/State Status Other Status Habitat Potential to Occur Arenaria paludicola marsh sandwort Endangered, Endangered G1, S1, 1B.1 Marshes and swamps. Growing up through dense mats of Typha, Juncus, Scirpus, etc. in freshwater marsh. Sandy soil. 3-170 m. Suitable habitat for this species does not occur on site. As such, this species is considered absent from the Project site. Arizona elegans occidentalis California glossy snake None, None G5T2, S2, CDFW-SSC Patchily distributed from the eastern portion of San Francisco Bay, southern San Joaquin Valley, and the Coast, Transverse, and Peninsular ranges, south to Baja California. Generalist reported from a range of scrub and grassland habitats, often with loose or sandy soils. Suitable habitat for this species does not occur on site. As such, this species is considered absent from the Project site. Artemisiospiza belli belli Bell's sparrow None, None G5T2T3, S3, CDFW- WL Nests in chaparral dominated by fairly dense stands of chamise. Found in coastal sage scrub in south of range. Nest located on the ground beneath a shrub or in a shrub 6-18 inches above ground. Territories about 50 yds apart. Suitable habitat for this species does not occur on site. As such, this species is considered absent from the Project site. Asplenium vespertinum western spleenwort None, None G3?, S4, 4.2 Chaparral, Cismontane woodland, Coastal scrub Suitable habitat for this species does not occur on site. As such, this species is considered absent from the Project site. Biological Resources Assessment for Hilton Drive Industrial Project Jennings Environmental, LLC P a g e | 15 Scientific Name Common Name Federal/State Status Other Status Habitat Potential to Occur Athene cunicularia burrowing owl None, Candidate Endangered G4, S2, CDFW-SSC Open, dry annual or perennial grasslands, deserts, and scrublands characterized by low-growing vegetation. Subterranean nester, dependent upon burrowing mammals, most notably, the California ground squirrel. Suitable habitat for this species does not occur on site. As such, this species is considered absent from the Project site. Batrachoseps gabrieli San Gabriel slender salamander None, None G2G3, S2S3 Known only from the San Gabriel Mtns. Found under rocks, wood, and fern fronds, and on soil at the base of talus slopes. Most active on the surface in winter and early spring. Suitable habitat for this species does not occur on site. As such, this species is considered absent from the Project site. Bombus crotchii Crotch's bumble bee None, Candidate Endangered G2, S2 Coastal California east to the Sierra- Cascade crest and south into Mexico. Food plant genera include Antirrhinum, Phacelia, Clarkia, Dendromecon, Eschscholzia, and Eriogonum. Suitable habitat for this species does not occur on site. As such, this species is considered absent from the Project site. Bombus pensylvanicus American bumble bee None, None G3G4, S2 Long-tongued; forages on a wide variety of flowers including vetches (Vicia), clovers (Trifolium), thistles (Cirsium), sunflowers (Helianthus), etc. Nests above ground under long grass or underground. Queens overwinter in rotten wood or underground. Suitable habitat for this species does not occur on site. As such, this species is considered absent from the Project site. Biological Resources Assessment for Hilton Drive Industrial Project Jennings Environmental, LLC P a g e | 16 Scientific Name Common Name Federal/State Status Other Status Habitat Potential to Occur California Walnut Woodland California Walnut Woodland None, None G2, S2.1 Cismontane woodland This habitat type is absent from the Project site. Calochortus catalinae Catalina mariposa lily None, None G3G4, S3S4, 4.2 Chaparral, Cismontane woodland, Coastal scrub, Valley and foothill grassland Suitable habitat for this species does not occur on site. As such, this species is considered absent from the Project site. Calochortus plummerae Plummer's mariposa-lily None, None G4, S4, 4.2 Coastal scrub, chaparral, valley and foothill grassland, cismontane woodland, lower montane coniferous forest. Occurs on rocky and sandy sites, usually of granitic or alluvial material. Can be very common after fire. 60-2500 m. Suitable habitat for this species does not occur on site. As such, this species is considered absent from the Project site. Calochortus weedii var. intermedius intermediate mariposa-lily None, None G3G4T3, S3, 1B.2 Coastal scrub, chaparral, valley and foothill grassland. Dry, rocky calcareous slopes and rock outcrops. 60-1575 m. Suitable habitat for this species does not occur on site. As such, this species is considered absent from the Project site. Catostomus santaanae Santa Ana sucker Threatened, None G1, S1, CDFW-SSC Endemic to Los Angeles Basin south coastal streams. Habitat generalists, but prefer sand-rubble-boulder bottoms, cool, clear water, and algae. Suitable habitat for this species does not occur on site. As such, this species is considered absent from the Project site. Biological Resources Assessment for Hilton Drive Industrial Project Jennings Environmental, LLC P a g e | 17 Scientific Name Common Name Federal/State Status Other Status Habitat Potential to Occur Chaetodipus fallax fallax northwestern San Diego pocket mouse None, None G5T3T4, S3S4 Coastal scrub, chaparral, grasslands, sagebrush, etc. in western San Diego, Riverside, San Bernardino, and Los Angeles Counties, inclusive of Orange County. Sandy, herbaceous areas, usually in association with rocks or coarse gravel. Suitable habitat for this species does not occur on site. As such, this species is considered absent from the Project site. Chaetodipus fallax pallidus pallid San Diego pocket mouse None, None G5T3T4, S3S4 Desert border areas of San Diego, Riverside, San Bernardino, and Los Angeles counties in desert wash, desert scrub, desert succulent scrub, pinyon- juniper, etc. Sandy, herbaceous areas, usually in association with rocks or coarse gravel. Suitable habitat for this species does not occur on site. As such, this species is considered absent from the Project site. Chloropyron maritimum ssp. maritimum salt marsh bird's- beak Endangered, Endangered G4?T1, S1, 1B.2 Marshes and swamps, coastal dunes. Limited to the higher zones of salt marsh habitat. 0-10 m. Suitable habitat for this species does not occur on site. As such, this species is considered absent from the Project site. Chorizanthe parryi var. parryi Parry's spineflower None, None G3T2, S2, 1B.1 Coastal scrub, chaparral, cismontane woodland, valley and foothill grassland. Dry slopes and flats; sometimes at interface of 2 vegetation types, such as chaparral and oak woodland. Dry, sandy soils. 90-1220 m. Suitable habitat for this species does not occur on site. As such, this species is considered absent from the Project site. Biological Resources Assessment for Hilton Drive Industrial Project Jennings Environmental, LLC P a g e | 18 Scientific Name Common Name Federal/State Status Other Status Habitat Potential to Occur Chorizanthe xanti var. leucotheca white-bracted spineflower None, None G4T3, S3, 1B.2 Mojavean desert scrub, pinyon and juniper woodland, coastal scrub (alluvial fans). Sandy or gravelly places. 365-1830 m. Suitable habitat for this species does not occur on site. As such, this species is considered absent from the Project site. Cicindela tranquebarica viridissima greenest tiger beetle None, None G5T1, S1 Inhabits the woodlands adjacent to the Santa Ana River basin. Usually found in open spots between trees. Suitable habitat for this species does not occur on site. As such, this species is considered absent from the Project site. Cladium californicum California saw- grass None, None G4, S2, 2B.2 Meadows and seeps, marshes and swamps (alkaline or freshwater). Freshwater or alkaline moist habitats. - 40-2150 m. Suitable habitat for this species does not occur on site. As such, this species is considered absent from the Project site. Claytonia peirsonii ssp. peirsonii Peirson's spring beauty None, None G2G3T2, S2, 1B.2 Upper montane coniferous forest, subalpine coniferous forest. Granitic scree slopes, often with a sandy or fine soil component and granitic cobbles. 1510-2745 m. Suitable habitat for this species does not occur on site. As such, this species is considered absent from the Project site. Coastal and Valley Freshwater Marsh Coastal and Valley Freshwater Marsh None, None G3, S2.1 Marsh & swamp | Wetland This habitat type is absent from the Project site. Deinandra paniculata paniculate tarplant None, None G4, S4, 4.2 Coastal scrub, Valley and foothill grassland, Vernal pools Suitable habitat for this species does not occur on site. As such, this species is considered absent from the Project site. Biological Resources Assessment for Hilton Drive Industrial Project Jennings Environmental, LLC P a g e | 19 Scientific Name Common Name Federal/State Status Other Status Habitat Potential to Occur Diplacus johnstonii Johnston's monkeyflower None, None G4, S4, 4.3 Lower montane coniferous forest (disturbed areas, gravelly, roadsides, rocky, scree) Suitable habitat for this species does not occur on site. As such, this species is considered absent from the Project site. Dipodomys merriami parvus San Bernardino kangaroo rat Endangered, Endangered G5T1, S1, CDFW-SSC Alluvial scrub vegetation on sandy loam substrates characteristic of alluvial fans and flood plains. Needs early to intermediate seral stages. Suitable habitat for this species does not occur on site. As such, this species is considered absent from the Project site. Dipodomys stephensi Stephens' kangaroo rat Threatened, Threatened G2, S3 Primarily annual and perennial grasslands, but also occurs in coastal scrub and sagebrush with sparse canopy cover. Prefers buckwheat, chamise, brome grass and filaree. Will burrow into firm soil. Suitable habitat for this species does not occur on site. As such, this species is considered absent from the Project site. Dodecahema leptoceras slender-horned spineflower Endangered, Endangered G1, S1, 1B.1 Chaparral, cismontane woodland, coastal scrub (alluvial fan sage scrub). Flood deposited terraces and washes; associates include Encelia, Dalea, Lepidospartum, etc. Sandy soils. 200- 765 m. Suitable habitat for this species does not occur on site. As such, this species is considered absent from the Project site. Eriastrum densifolium ssp. sanctorum Santa Ana River woollystar Endangered, Endangered G4T1, S1, 1B.1 Coastal scrub, chaparral. In sandy soils on river floodplains or terraced fluvial deposits. 180-705 m. Suitable habitat for this species does not occur on site. As such, this species is considered absent from the Project site. Biological Resources Assessment for Hilton Drive Industrial Project Jennings Environmental, LLC P a g e | 20 Scientific Name Common Name Federal/State Status Other Status Habitat Potential to Occur Eriogonum microthecum var. alpinum alpine slender buckwheat None, None G5T3, S3, 4.3 Alpine dwarf scrub, Great Basin scrub Suitable habitat for this species does not occur on site. As such, this species is considered absent from the Project site. Eriogonum microthecum var. johnstonii Johnston's buckwheat None, None G5T2, S2, 1B.3 Subalpine coniferous forest, upper montane coniferous forest. Slopes and ridges on granite or limestone. 1795- 2865 m. Suitable habitat for this species does not occur on site. As such, this species is considered absent from the Project site. Eriogonum umbellatum var. minus alpine sulfur- flowered buckwheat None, None G5T4, S4, 4.3 Subalpine coniferous forest, Upper montane coniferous forest Suitable habitat for this species does not occur on site. As such, this species is considered absent from the Project site. Eriophyllum lanatum var. obovatum southern Sierra woolly sunflower None, None G5T4, S4, 4.3 Lower montane coniferous forest, Upper montane coniferous forest Suitable habitat for this species does not occur on site. As such, this species is considered absent from the Project site. Eugnosta busckana Busck's gallmoth None, None G1G3, S2S3 Coastal southern California. Tiny micro- moth (1 cm) with larva forming galls on host plant Encelia californica (California brittlebush). Adult flight period is during winter, generally from November to February, and have been reported at UV lights and porch lights. Suitable habitat for this species does not occur on site. As such, this species is considered absent from the Project site. Biological Resources Assessment for Hilton Drive Industrial Project Jennings Environmental, LLC P a g e | 21 Scientific Name Common Name Federal/State Status Other Status Habitat Potential to Occur Eumops perotis californicus western mastiff bat None, None G4G5T4, S3S4, CDFW-SSC Many open, semi-arid to arid habitats, including conifer and deciduous woodlands, coastal scrub, grasslands, chaparral, etc. Roosts in crevices in cliff faces, high buildings, trees and tunnels. Suitable habitat for this species does not occur on site. As such, this species is considered absent from the Project site. Fritillaria pinetorum pine fritillary None, None G4, S4, 4.3 Chaparral, Lower montane coniferous forest, Pinyon and juniper woodland, Subalpine coniferous forest, Upper montane coniferous forest Suitable habitat for this species does not occur on site. As such, this species is considered absent from the Project site. Galium angustifolium ssp. gabrielense San Antonio Canyon bedstraw None, None G5T3, S3, 4.3 Chaparral, Lower montane coniferous forest Suitable habitat for this species does not occur on site. As such, this species is considered absent from the Project site. Galium jepsonii Jepson's bedstraw None, None G3, S3, 4.3 Lower montane coniferous forest, Upper montane coniferous forest Suitable habitat for this species does not occur on site. As such, this species is considered absent from the Project site. Galium johnstonii Johnston's bedstraw None, None G4, S4, 4.3 Chaparral, Lower montane coniferous forest, Pinyon and juniper woodland, Riparian woodland Suitable habitat for this species does not occur on site. As such, this species is considered absent from the Project site. Biological Resources Assessment for Hilton Drive Industrial Project Jennings Environmental, LLC P a g e | 22 Scientific Name Common Name Federal/State Status Other Status Habitat Potential to Occur Gila orcuttii arroyo chub None, None G1, S2, CDFW-SSC Native to streams from Malibu Creek to San Luis Rey River basin. Introduced into streams in Santa Clara, Ventura, Santa Ynez, Mojave and San Diego river basins. Slow water stream sections with mud or sand bottoms. Feeds heavily on aquatic vegetation and associated invertebrates. Suitable habitat for this species does not occur on site. As such, this species is considered absent from the Project site. Heuchera caespitosa urn-flowered alumroot None, None G3, S3, 4.3 Cismontane woodland, Lower montane coniferous forest, Riparian forest (montane), Upper montane coniferous forest Suitable habitat for this species does not occur on site. As such, this species is considered absent from the Project site. Horkelia cuneata var. puberula mesa horkelia None, None G4T1, S1, 1B.1 Chaparral, cismontane woodland, coastal scrub. Sandy or gravelly sites. 15-1645 m. Suitable habitat for this species does not occur on site. As such, this species is considered absent from the Project site. Juglans californica Southern California black walnut None, None G4, S4, 4.2 Chaparral, Cismontane woodland, Coastal scrub, Riparian woodland Suitable habitat for this species does not occur on site. As such, this species is considered absent from the Project site. Juncus duranii Duran's rush None, None G3, S3, 4.3 Lower montane coniferous forest, Meadows and seeps, Upper montane coniferous forest Suitable habitat for this species does not occur on site. As such, this species is considered absent from the Project site. Biological Resources Assessment for Hilton Drive Industrial Project Jennings Environmental, LLC P a g e | 23 Scientific Name Common Name Federal/State Status Other Status Habitat Potential to Occur Lasiurus xanthinus western yellow bat None, None G4G5, S3, CDFW-SSC Found in valley foothill riparian, desert riparian, desert wash, and palm oasis habitats. Roosts in trees, particularly palms. Forages over water and among trees. Suitable habitat for this species does not occur on site. As such, this species is considered absent from the Project site. Laterallus jamaicensis coturniculus California black rail None, Threatened G3T1, S2, CDFW-FP Inhabits freshwater marshes, wet meadows and shallow margins of saltwater marshes bordering larger bays. Needs water depths of about 1 inch that do not fluctuate during the year and dense vegetation for nesting habitat. Suitable habitat for this species does not occur on site. As such, this species is considered absent from the Project site. Lepechinia fragrans fragrant pitcher sage None, None G3, S3, 4.2 Chaparral Suitable habitat for this species does not occur on site. As such, this species is considered absent from the Project site. Lepidium virginicum var. robinsonii Robinson's pepper-grass None, None G5T3, S3, 4.3 Chaparral, coastal scrub. Dry soils, shrubland. 4-1435 m. Suitable habitat for this species does not occur on site. As such, this species is considered absent from the Project site. Lepus californicus bennettii San Diego black- tailed jackrabbit None, None G5T3T4, S3S4 Intermediate canopy stages of shrub habitats and open shrub / herbaceous and tree / herbaceous edges. Coastal sage scrub habitats in Southern California. Suitable habitat for this species does not occur on site. As such, this species is considered absent from the Project site. Biological Resources Assessment for Hilton Drive Industrial Project Jennings Environmental, LLC P a g e | 24 Scientific Name Common Name Federal/State Status Other Status Habitat Potential to Occur Lilium humboldtii ssp. ocellatum ocellated Humboldt lily None, None G4T4?, S4?, 4.2 Chaparral, Cismontane woodland, Coastal scrub, Lower montane coniferous forest, Riparian woodland Suitable habitat for this species does not occur on site. As such, this species is considered absent from the Project site. Lilium parryi lemon lily None, None G3, S3, 1B.2 Lower montane coniferous forest, meadows and seeps, riparian forest, upper montane coniferous forest. Wet, mountainous terrain; generally in forested areas; on shady edges of streams, in open boggy meadows and seeps. 625-2930 m. Suitable habitat for this species does not occur on site. As such, this species is considered absent from the Project site. Linanthus concinnus San Gabriel linanthus None, None G2, S2, 1B.2 Lower montane coniferous forest, upper montane coniferous forest, chaparral. Dry rocky slopes, often in Jeffrey pine/canyon oak forest. 1310- 2560 m. Suitable habitat for this species does not occur on site. As such, this species is considered absent from the Project site. Lycium parishii Parish's desert- thorn None, None G4, S1, 2B.3 Coastal scrub, Sonoran desert scrub. - 3-570 m. Suitable habitat for this species does not occur on site. As such, this species is considered absent from the Project site. Malacothamnus parishii Parish's bushmallow None, None GXQ, SX, 1A Chaparral, coastal sage scrub. In a wash. 305-455 m. Suitable habitat for this species does not occur on site. As such, this species is considered absent from the Project site. Biological Resources Assessment for Hilton Drive Industrial Project Jennings Environmental, LLC P a g e | 25 Scientific Name Common Name Federal/State Status Other Status Habitat Potential to Occur Monardella australis ssp. jokerstii Jokerst's monardella None, None G4T1?, S1?, 1B.1 Lower montane coniferous forest, chapparal. Steep scree or talus slopes between breccia. Secondary alluvial benches along drainages and washes. 210-1740 m. Suitable habitat for this species does not occur on site. As such, this species is considered absent from the Project site. Monardella pringlei Pringle's monardella None, None GX, SX, 1A Coastal scrub. Sandy hills. 300-400 m. Suitable habitat for this species does not occur on site. As such, this species is considered absent from the Project site. Monardella saxicola rock monardella None, None G3, S3, 4.2 Chaparral, Closed-cone coniferous forest, Lower montane coniferous forest Suitable habitat for this species does not occur on site. As such, this species is considered absent from the Project site. Muhlenbergia californica California muhly None, None G4, S4, 4.3 Coastal scrub, chaparral, lower montane coniferous forest, meadows and seeps. Usually found near streams or seeps. 100-2000 m. Suitable habitat for this species does not occur on site. As such, this species is considered absent from the Project site. Muhlenbergia utilis aparejo grass None, None G4, S2S3, 2B.2 Meadows and seeps, marshes and swamps, chaparral, coastal scrub, cismontane woodland. Sometimes alkaline, sometimes serpentinite. 25- 2325 m. Suitable habitat for this species does not occur on site. As such, this species is considered absent from the Project site. Biological Resources Assessment for Hilton Drive Industrial Project Jennings Environmental, LLC P a g e | 26 Scientific Name Common Name Federal/State Status Other Status Habitat Potential to Occur Navarretia prostrata prostrate vernal pool navarretia None, None G2, S2, 1B.2 Coastal scrub, valley and foothill grassland, vernal pools, meadows and seeps. Alkaline soils in grassland, or in vernal pools. Mesic, alkaline sites. 3- 1235 m. Suitable habitat for this species does not occur on site. As such, this species is considered absent from the Project site. Neolarra alba white cuckoo bee None, None GH, SH Known only from localities in Southern California. Cleptoparasitic in the nests of perdita bees. Suitable habitat for this species does not occur on site. As such, this species is considered absent from the Project site. Neotoma lepida intermedia San Diego desert woodrat None, None G5T3T4, S3S4, CDFW-SSC Coastal scrub of Southern California from San Diego County to San Luis Obispo County. Moderate to dense canopies preferred. They are particularly abundant in rock outcrops, rocky cliffs, and slopes. Suitable habitat for this species does not occur on site. As such, this species is considered absent from the Project site. Nyctinomops femorosaccus pocketed free- tailed bat None, None G5, S3, CDFW-SSC Variety of arid areas in Southern California; pine-juniper woodlands, desert scrub, palm oasis, desert wash, desert riparian, etc. Rocky areas with high cliffs. Suitable habitat for this species does not occur on site. As such, this species is considered absent from the Project site. Biological Resources Assessment for Hilton Drive Industrial Project Jennings Environmental, LLC P a g e | 27 Scientific Name Common Name Federal/State Status Other Status Habitat Potential to Occur Oncorhynchus mykiss irideus pop. 10 steelhead - southern California DPS Endangered, Candidate Endangered G5T1Q, S1, Federal listing refers to populations from Santa Maria River south to southern extent of range (San Mateo Creek in San Diego County). Southern steelhead likely have greater physiological tolerances to warmer water and more variable conditions. Suitable habitat for this species does not occur on site. As such, this species is considered absent from the Project site. Opuntia basilaris var. brachyclada short-joint beavertail None, None G5T3, S3, 1B.2 Chaparral, Joshua tree woodland, Mojavean desert scrub, pinyon and juniper woodland. Sandy soil or coarse, granitic loam. 425-2015 m. Suitable habitat for this species does not occur on site. As such, this species is considered absent from the Project site. Oreonana vestita woolly mountain- parsley None, None G3, S3, 1B.3 Subalpine coniferous forest, upper montane coniferous forest, lower montane coniferous forest. High ridges; on scree, talus, or gravel. 800-3370 m. Suitable habitat for this species does not occur on site. As such, this species is considered absent from the Project site. Ovis canadensis nelsoni desert bighorn sheep None, None G4T3, S3, CDFW-FP Widely distributed from the White Mtns in Mono Co. to the Chocolate Mts in Imperial Co. Open, rocky, steep areas with available water and herbaceous forage. Suitable habitat for this species does not occur on site. As such, this species is considered absent from the Project site. Biological Resources Assessment for Hilton Drive Industrial Project Jennings Environmental, LLC P a g e | 28 Scientific Name Common Name Federal/State Status Other Status Habitat Potential to Occur Perognathus longimembris brevinasus Los Angeles pocket mouse None, None G5T2, S1S2, CDFW-SSC Lower elevation grasslands and coastal sage communities in and around the Los Angeles Basin. Open ground with fine, sandy soils. May not dig extensive burrows, hiding under weeds and dead leaves instead. Suitable habitat for this species does not occur on site. As such, this species is considered absent from the Project site. Phacelia mohavensis Mojave phacelia None, None G4Q, S4, 4.3 Cismontane woodland, Lower montane coniferous forest, Meadows and seeps, Pinyon and juniper woodland Suitable habitat for this species does not occur on site. As such, this species is considered absent from the Project site. Phacelia stellaris Brand's star phacelia None, None G1, S1, 1B.1 Coastal scrub, coastal dunes. Open areas. 3-370 m. Suitable habitat for this species does not occur on site. As such, this species is considered absent from the Project site. Phrynosoma blainvillii coast horned lizard None, None G4, S4, CDFW-SSC Frequents a wide variety of habitats, most common in lowlands along sandy washes with scattered low bushes. Open areas for sunning, bushes for cover, patches of loose soil for burial, and abundant supply of ants and other insects. Suitable habitat for this species does not occur on site. As such, this species is considered absent from the Project site. Biological Resources Assessment for Hilton Drive Industrial Project Jennings Environmental, LLC P a g e | 29 Scientific Name Common Name Federal/State Status Other Status Habitat Potential to Occur Polioptila californica californica coastal California gnatcatcher Threatened, None G4G5T3Q, S2, CDFW- SSC Obligate, permanent resident of coastal sage scrub below 2500 ft in Southern California. Low, coastal sage scrub in arid washes, on mesas and slopes. Not all areas classified as coastal sage scrub are occupied. Suitable habitat for this species does not occur on site. As such, this species is considered absent from the Project site. Pseudognaphalium leucocephalum white rabbit- tobacco None, None G4, S2, 2B.2 Riparian woodland, cismontane woodland, coastal scrub, chaparral. Sandy, gravelly sites. 35-515 m. Suitable habitat for this species does not occur on site. As such, this species is considered absent from the Project site. Quercus durata var. gabrielensis San Gabriel oak None, None G4T3, S3, 4.2 Chaparral, Cismontane woodland Suitable habitat for this species does not occur on site. As such, this species is considered absent from the Project site. Rana muscosa southern mountain yellow- legged frog Endangered, Endangered G1, S2, CDFW-WL Disjunct populations known from southern Sierras (northern DPS) and San Gabriel, San Bernardino, and San Jacinto Mtns (southern DPS). Found at 1,000 to 12,000 ft in lakes and creeks that stem from springs and snowmelt. May overwinter under frozen lakes. Often encountered within a few feet of water. Tadpoles may require 2 - 4 yrs to complete their aquatic development. Suitable habitat for this species does not occur on site. As such, this species is considered absent from the Project site. Biological Resources Assessment for Hilton Drive Industrial Project Jennings Environmental, LLC P a g e | 30 Scientific Name Common Name Federal/State Status Other Status Habitat Potential to Occur Rhaphiomidas terminatus abdominalis Delhi Sands flower-loving fly Endangered, None G1T1, S1 Found only in areas of the Delhi Sands formation in southwestern San Bernardino and northwestern Riverside counties. Requires fine, sandy soils, often with wholly or partly consolidated dunes and sparse vegetation. Oviposition req. shade. Suitable habitat for this species does not occur on site. As such, this species is considered absent from the Project site. Rhinichthys gabrielino Santa Ana speckled dace Proposed Threatened, None G5T1, S1, CDFW-SSC Headwaters of the Santa Ana and San Gabriel rivers. May be extirpated from the Los Angeles River system. Requires permanent flowing streams with summer water temps of 17-20 C. Usually inhabits shallow cobble and gravel riffles. Suitable habitat for this species does not occur on site. As such, this species is considered absent from the Project site. Riversidian Alluvial Fan Sage Scrub Riversidian Alluvial Fan Sage Scrub None, None G1, S1.1 Coastal scrub This habitat type is absent from the Project site. Sagittaria sanfordii Sanford's arrowhead None, None G3, S3, 1B.2 Marshes and swamps. In standing or slow-moving freshwater ponds, marshes, and ditches. 0-605 m. Suitable habitat for this species does not occur on site. As such, this species is considered absent from the Project site. Senecio aphanactis chaparral ragwort None, None G3, S2, 2B.2 Chaparral, cismontane woodland, coastal scrub. Drying alkaline flats. 20- 1020 m. Suitable habitat for this species does not occur on site. As such, this species is considered absent from the Project site. Biological Resources Assessment for Hilton Drive Industrial Project Jennings Environmental, LLC P a g e | 31 Scientific Name Common Name Federal/State Status Other Status Habitat Potential to Occur Senecio astephanus San Gabriel ragwort None, None G3, S3, 4.3 Chaparral, Coastal scrub Suitable habitat for this species does not occur on site. As such, this species is considered absent from the Project site. Southern Riparian Forest Southern Riparian Forest None, None G4, S4 Riparian forest This habitat type is absent from the Project site. Southern Sycamore Alder Riparian Woodland Southern Sycamore Alder Riparian Woodland None, None G4, S4 Riparian woodland This habitat type is absent from the Project site. Spea hammondii western spadefoot Proposed Threatened, None G2G3, S3S4, CDFW-SSC Occurs primarily in grassland habitats, but can be found in valley-foothill hardwood woodlands. Vernal pools are essential for breeding and egg-laying. Suitable habitat for this species does not occur on site. As such, this species is considered absent from the Project site. Sphenopholis obtusata prairie wedge grass None, None G5, S2, 2B.2 Cismontane woodland, meadows and seeps. Open moist sites, along rivers and springs, alkaline desert seeps. 15- 2625 m. Suitable habitat for this species does not occur on site. As such, this species is considered absent from the Project site. Streptanthus bernardinus Laguna Mountains jewelflower None, None G3G4, S3S4, 4.3 Chaparral, lower montane coniferous forest. Clay or decomposed granite soils; sometimes in disturbed areas such as streamsides or roadcuts. 1440- 2500 m. Suitable habitat for this species does not occur on site. As such, this species is considered absent from the Project site. Biological Resources Assessment for Hilton Drive Industrial Project Jennings Environmental, LLC P a g e | 32 Scientific Name Common Name Federal/State Status Other Status Habitat Potential to Occur Symphyotrichum defoliatum San Bernardino aster None, None G2, S2, 1B.2 Meadows and seeps, cismontane woodland, coastal scrub, lower montane coniferous forest, marshes and swamps, valley and foothill grassland. Vernally mesic grassland or near ditches, streams and springs; disturbed areas. 3-2045 m. Suitable habitat for this species does not occur on site. As such, this species is considered absent from the Project site. Thamnophis hammondii two-striped gartersnake None, None G4, S3S4, CDFW-SSC Coastal California from vicinity of Salinas to northwest Baja California. From sea to about 7,000 ft elevation. Highly aquatic, found in or near permanent fresh water. Often along streams with rocky beds and riparian growth. Suitable habitat for this species does not occur on site. As such, this species is considered absent from the Project site. Viola pinetorum ssp. grisea grey-leaved violet None, None G4G5T3, S3, 1B.2 Subalpine coniferous forest, upper montane coniferous forest, meadows and seeps. Dry mountain peaks and slopes. 1580-3700 m. Suitable habitat for this species does not occur on site. As such, this species is considered absent from the Project site. Vireo bellii pusillus least Bell's vireo Endangered, Endangered G5T2, S3 Summer resident of Southern California in low riparian in vicinity of water or in dry river bottoms; below 2000 ft. Nests placed along margins of bushes or on twigs projecting into pathways, usually willow, Baccharis, mesquite. Suitable habitat for this species does not occur on site. As such, this species is considered absent from the Project site. Biological Resources Assessment for Hilton Drive Industrial Project Jennings Environmental, LLC P a g e | 33 Coding and Terms E = Endangered T = Threatened C = Candidate FP = Fully Protected WL = Watch List SSC = Species of Special Concern R = Rare State Species of Special Concern: An administrative designation given to vertebrate species that appear to be vulnerable to extinction because of declining pop ulations, limited acreages, and/or continuing threats. Raptor and owls are protected under section 3502.5 of the California Fish and Game code: “It is unlawful to take, possess or destroy any birds in the orders Falconiformes or Strigiformes or to take, possess or destroy the nest or eggs of any such bird.” State Fully Protected: The classification of Fully Protected was the State's initial effort in the 1960's to identify and provide additional protect ion to those animals that were rare or faced possible extinction. Lists were created for fish, mammals, amphibians and reptiles. Fully Protected species may not be taken or possessed at any time and no licenses or permits may be issued for their take exce pt for collecting these species for necessary scientific research and relocation of the bird species for the protection of livestock. Global Rankings (Species or Natural Community Level): G1 = Critically Imperiled – At very high risk of extinction due to extreme rarity (often 5 or fewer populations), very steep declines, or other factors. G2 = Imperiled – At high risk of extinction due to very restricted range, very few populations (often 20 or fewer), steep declines, or other f actors. G3 = Vulnerable – At moderate risk of extinction due to a restricted range, relatively few populations (often 80 or fewer), recent and widespre ad declines, or other factors. G4 = Apparently Secure – Uncommon but not rare; some cause for long-term concern due to declines or other factors. G5 = Secure – Common; widespread and abundant. ? = Uncertainty in the exact status of an element (could move up or down one direction from current rank) Subspecies Level: Taxa which are subspecies or varieties receive a taxon rank (T-rank) attached to their G-rank. Where the G-rank reflects the condition of the entire species, the T-rank reflects the global situation of just the subspecies. For example: the Point Reyes mountain beaver, Aplodontia rufa ssp. phaea is ranked G5T2. The G-rank refers to the whole species range i.e., Aplodontia rufa. The T-rank refers only to the global condition of ssp. phaea. State Ranking: S1 = Critically Imperiled – Critically imperiled in the State because of extreme rarity (often 5 or fewer populations) or because of factor(s) such as ve ry steep declines making it especially vulnerable to extirpation from the State. S2 = Imperiled – Imperiled in the State because of rarity due to very restricted range, very few populations (often 20 or fewer), steep declin es, or other factors making it very vulnerable to extirpation from the State. S3 = Vulnerable – Vulnerable in the State due to a restricted range, relatively few populations (often 80 or fewer), recent and widespread decl ines, or other factors making it vulnerable to extirpation from the State. S4 = Apparently Secure – Uncommon but not rare in the State; some cause for long -term concern due to declines or other factors. S5 = Secure – Common, widespread, and abundant in the State. California Rare Plant Rankings (CNPS List): 1A = Plants presumed extirpated in California and either rare or extinct elsewhere. 1B = Plants rare, threatened, or endangered in California and elsewhere. 2A = Plants presumed extirpated in California, but common elsewhere. 2B = Plants rare, threatened, or endangered in California, but more common elsewhere. 3 = Plants about which more information is needed; a review list. 4 = Plants of limited distribution; a watch list. Threat Ranks: .1 = Seriously threatened in California (over 80% of occurrences threatened / high degree and immediacy of threat) .2 = Moderately threatened in California (20-80% occurrences threatened / moderate degree and immediacy of threat) .3 = Not very threatened in California (less than 20% of occurrences threatened / low degree and immediacy of threat or no cu rrent threats known) APPENDIX B TRAFFIC MEMORANDUM transportation ■ noise ■ air quality | GANDDINI GROUP 555 Parkcenter Drive, Suite 225, Santa Ana, California 92705 714 795 3100 | ganddini.com TECHNICAL MEMORANDUM TO: Ms. Cheryl Tubbs | LILBURN CORPORATION FROM: Perrie Ilercil, Senior Engineer | GANDDINI GROUP, INC. DATE: December 9, 2025 SUBJECT: Hilton Industrial Facility Project (EST24-00008) Transportation Screening Assessment GGI Project No. 19866 Ganddini Group, Inc. is pleased to provide this Transportation Screening Assessment for the Hilton Industrial Facility project in the City of Fontana. The purpose of this memorandum is to determine if the preparation of a traffic impact analysis with level of service (LOS) analysis or vehicle miles traveled (VMT) analysis is necessary based on the transportation study guidelines and screening criteria established by the City of Fontana. We trust the findings of this analysis will aid the City of Fontana in assessing the project. PROJECT DESCRIPTION The 4.01-acre project site (APN: 1110-151-03) is located on the northside of Hilton Drive approximately 950 feet east of Redwood Avenue in the City of Fontana, California. The project site is currently vacant and zoned industrial in the West End Specific Plan. The proposed project involves the development of two warehouse buildings with a total of 71,985 square feet. Vehicle access for the project site is proposed via two driveways onto Hilton Drive. The proposed site plan is shown in Attachment A TRIP GENERATION Table 1 shows the proposed project trips based on trip generation rates obtained from the Institute of Transportation Engineers (ITE) Trip Generation Manual (12th Edition, 2025) for Land Use Code 150 (Warehouse). Truck Trips The project industrial trip generation was also calculated in terms of Passenger Car Equivalent (PCE) trips. The percentage of truck trips was obtained from the ITE Trip Generation Manual (12th Edition, 2025). The truck mix by axle type was determined based on recommendations for non-cold storage warehouse from the Warehouse Truck Trip Study Results and Usage, by South Coast Air Quality Management District, July 17, 2014. Truck trips were converted to PCE trips based on the City of Fontana equivalent factors of 2.0 for 2-axle light-duty trucks, 2.5 for 3-axle medium-duty trucks, and 3.0 for 4+-axle heavy-duty trucks. Project Trips As shown in Table 1, the proposed project is forecast to approximately 99 daily vehicle trips, including 9 vehicle trips during the AM peak hour and 11 vehicle trips during the PM peak hour which equates to Ms. Cheryl Tubbs Hilton Industrial Facility December 9, 2025 Hilton Industrial Facility Transportation Screening Assessment 2 19866 approximately 150 daily PCE trips, including 13 PCE trips during the AM peak hour and 15 PCE trips during the PM peak hour. CRITERIA FOR THE PREPARATION OF TRAFFIC IMPACT ANALYSES The project has been assessed to determine if the preparation of a traffic impact analysis with level of service (LOS) analysis and vehicle miles traveled (VMT) analysis is necessary based on the criteria established as specified in the City of Fontana Transportation Impact Analysis (TIA) Guidelines for Vehicle Miles Traveled (VMT) and Level of Service Assessment (LOS) (October 2020) [“City TIA Guidelines”]. Level of Service Screening Criteria (General Plan Conformity) As specified in the City TIA Guidelines, the requirement to prepare a transportation impact study with level of service (LOS) analysis should be based on one or more of the following criteria:  If a project is forecast to exceed the Congestion Management Program (CMP) threshold of 250 two-way peak hour trips, a traffic impact analysis will be required.  If a project is forecast to generate between 100 and 249 two-way peak hour trips, a traffic impact analysis will be required, but the extent of the analysis will be lesser.  If a project generated between 50 and 100 two-way peak hour trips, a focused traffic analysis will be required.  If a project generates less than 50 peak hour trips, a traffic analysis report shall not be required, and a trip generation memo will be considered sufficient unless the City has specific concerns related to project access and interaction with adjacent intersections. The project would generate and contribute fewer than 50 peak hour trips to any intersection of two streets designated as Collector or higher on the City’s General Plan circulation system. The project does not propose any deviation from the City’s TIA Guidelines or design standards. Subject to verification by the City Traffic Engineer, the project does not appear to contribute to unique existing or proposed traffic conditions in the project vicinity to warrant further evaluation. Therefore, the project does not warrant the preparation of a transportation impact study with LOS analysis based on the City-established screening criteria and LOS impacts may be presumed to be negligible. Vehicle Miles Traveled Screening Criteria (CEQA) The vehicle miles traveled (VMT) screening assessment has been prepared in accordance with City TIA Guidelines, which were developed based on guidance from the Office of Planning and Research (OPR) Technical Advisory on Evaluating Transportation Impacts in CEQA (State of California, December 2018) [“OPR Technical Advisory”]. In general terms, VMT quantifies the amount and distance of automobile travel attributable to a project or region. The OPR Technical Advisory provides technical considerations regarding methodologies and thresholds with a focus on office, residential, and retail developments as these projects tend to have the greatest influence on VMT. The City TIA Guidelines identify screening criteria for certain types of projects that typically reduce VMT and may be presumed to result in a less than significant VMT impact. To qualify for VMT screening, the project need only satisfy one of the following screening criteria: Ms. Cheryl Tubbs Hilton Industrial Facility December 9, 2025 Hilton Industrial Facility Transportation Screening Assessment 3 19866  Projects located within a Transit Priority Area (TPA) □ Projects located within one-half mile radius of a major transit stop1 or high-quality transit corridor2  Projects located within a low VMT area □ Site location can be verified with the web-based or map-based VMT Screening Tool3  Project Type Screening □ Local-serving retail (less than 50,000 square feet) □ Projects consisting of land uses which by their nature are local-serving  Project Net Daily trips less than 500 ADT □ Projects consisting of land uses which by their nature are local-serving □ Projects which generate less than net new 500 daily vehicle trips (ADT) TPA Screening Projects located within a TPA, defined as within one-half mile of a major transit stop or high-quality transit corridor, may be presumed to result in a less than significant VMT impact absent substantial evidence to the contrary. The City TIA Guidelines note that this screening criteria may not apply if the project has a floor area ratio (FAR) less than 0.75, the project provides more parking than required by the city, the project is inconsistent with applicable Sustainable Communities Strategy (SCS), or the project constructs a smaller number of moderate or high-income residential units than the existing number of affordable residential units. Based on a review of the San Bernardino County Transportation Authority (SBCTA) VMT Screening Tool, the proposed project is located within a TPA, is consistent with SCS and parking standards and does not displace residential units; however, the project is below the FAR threshold of 0.75. Therefore, the TPA screening criteria is not met. Low VMT Area Screening As prescribed in the City TIA Guidelines, the SBCTA VMT Screening Tool was used to assess low VMT area screening for the project. The VMT Screening Tool was developed using the County travel forecasting model to measure VMT performance for individual jurisdictions and for individual traffic analysis zones (TAZs) within the County transportation region. TAZs are geographic polygons similar to census block groups used to represent areas of homogenous travel behavior. Total daily VMT per service population was estimated for each TAZ. This presumption may not be appropriate if the project land uses would alter the existing built environment in such a way as to increase the rate or length of vehicle trips. Based on the VMT Screening Tool results for the project site, located within TAZ 53716401, the baseline year (2025) VMT per service population for the project TAZ is equal to 53.3 VMT per service population, which is not less than the City-established threshold based on 15 percent below the San Bernardino County regional average baseline (39.0 VMT). Therefore, the project does not satisfy the City-established screening criteria for projects located in a low VMT area. 1 A major transit stop is defined as an existing rail transit station, ferry terminal with bus or rail service, or the intersection of two or more major bus routes with 20-minute or less headways during the peak commute hours (Pub. Resources Code, § 21064.3 and AB2553). 2 Fixed route bus service with less than 15-minute headways during the peak commute hours (Pub. Resources Code, § 21155). 3 The SBCTA VMT Screening Tool was developed from the San Bernardino Transportation Analysis Model (SBTAM) travel forecasting model to measure VMT performance for individual jurisdictions and for individual traffic analysis zones (TAZs). Ms. Cheryl Tubbs Hilton Industrial Facility December 9, 2025 Hilton Industrial Facility Transportation Screening Assessment 4 19866 Project Type Screening The City TIA Guidelines identify the several types of projects that may be presumed to have a less than significant VMT impact as they are local serving and thus can be expected to reduce VMT or they are small enough to have a negligible impact:  Projects consisting of local serving retail (less than 50,000) ▫ Supermarket ▫ Restaurant/café/bar ▫ Coffee/donut shop ▫ Dry cleaners ▫ Barbershop ▫ Hair/nails salon ▫ Walk-in medical clinic ▫ Urgent care ▫ Auto repair/tire shop ▫ Gyms/health club ▫ Dance/yoga/fitness/material arts studio  Projects consisting of land uses which by their nature are local-serving ▫ Local-serving K-12 schools ▫ Local parks ▫ Day care centers ▫ Local-serving gas stations ▫ Local-serving banks ▫ Local-serving hotels (e.g., non-destination hotels) ▫ Student housing projects on or adjacent to college campuses ▫ Local-serving assembly uses (places of worship, community organizations) ▫ Community institutions (public libraries, fires stations, local government) ▫ Local-serving community colleges that are consistent with the assumptions noted in the RTP/SCS ▫ Affordable or supportive housing ▫ Assisted living facilities ▫ Senior housing (as defined by HUD) The project does not consist of any of the specified local land use services; therefore, the proposed project does not satisfy the City-established screening criteria for local essential service projects. Projects with net daily trips less than 500 ADT Based on a review of greenhouse emissions produced by several types of projects, the City determined that 500 trips would not to cause a less than significant impact under CEQA.:  Projects generating with less than 5004 daily vehicle trips (ADT) ▫ Single family residential – 52 Dwelling Units or fewer ▫ Multi-family residential – 68 Dwelling Units or fewer ▫ General Office – 51,000 square feet of less ▫ Light Industrial – 100,000 square feet or less 4 This threshold was determined not to exceed 3.000MTCO2e per year as outlined in Appendix B of the City TIA Guidelines. Ms. Cheryl Tubbs Hilton Industrial Facility December 9, 2025 Hilton Industrial Facility Transportation Screening Assessment 5 19866 ▫ Warehousing – 287,000 square feet or less ▫ High-Cube Fulfillment Center Warehouse – 357,000 square feet or less The project consists of 71,985 square feet of warehouse which generates less than 500 daily trips. Therefore, this screening criteria is met, and the project may be presumed to result in a less than significant VMT impact. ACTIVE TRANSPORTATION AND PUBLIC TRANSIT ANALYSIS Existing Conditions The project site is located on the north side of Hilton Drive approximately 950 feet east of Redwood Avenue. The City of Fontana General Plan Community Mobility and Circulation Element approved and adopted July 23, 2023; shows Hilton Drive is classified as a Collector Street (2+ lanes on up to an 80-foot roadway section). On-street parking is not restricted along the project frontage. There are no designated bike facilities currently on Hilton Drive; however, there is an existing Class I bike trail north of the site along the Pacific Electric Trail, and there are proposed Class II bike lanes on Foothill Avenue south of the project site and Cherry Avenue west of the project site. Sidewalks are not currently provided along the project frontage; however, there are existing sidewalks to the east and south of the project site. There are no designated transit routes on Hilton Drive; however, Route 66 runs along Foothill Boulevard south of the project site. Project Conditions This analysis also assumes the project shall comply with the following conditions as part of the City of Fontana standard development review process to ensure adequate geometric design and emergency access:  Site-adjacent roadways shall be constructed or repaired at their ultimate half-section width, including landscaping and parkway improvements in conjunction with development, or as otherwise required by the City of Fontana.  All on-site and off-site roadway design, signing/striping, and traffic control improvements relating to the proposed project shall be submitted to the City for review and constructed following applicable State/Federal engineering standards to the satisfaction of the City of Fontana.  The final grading, landscaping, and street improvement plans shall demonstrate that applicable sight distance requirements are met.  The project shall comply with the City of Fontana municipal parking requirements which will be reviewed as a part of the standard development review process.  Final project plans shall demonstrate adequate emergency vehicle access and circulation to the satisfaction of the City of Fontana Public Works and Fire Departments.  A construction worksite traffic control plan shall comply with applicable engineering standards outlined in the California Manual of Uniform Traffic Control Devices and shall be submitted to the City for review and approval before the issuance of a grading permit or start of construction. The plan shall identify any roadway, sidewalk, bike route, or bus stop closures and detours as well as haul routes and hours of operation. All construction-related trips shall be restricted to off-peak hours to the extent possible. The project does not propose any post-construction changes to off-site roadways; therefore, the project Ms. Cheryl Tubbs Hilton Industrial Facility December 9, 2025 Hilton Industrial Facility Transportation Screening Assessment 6 19866 would not conflict with adopted policies, plans, or programs regarding public transit, bicycle, or pedestrian facilities, or otherwise decrease the performance or safety of such facilities. Additionally, the proposed project would be consistent with the City’s Active Transportation Plan by providing a sidewalk along the project’s frontage for greater pedestrian connectivity. CONCLUSION The proposed project is forecast to generate approximately 150 daily PCE trips, including 13 PCE trips during the AM peak hour and 15 PCE trips during the PM peak hour. The proposed project satisfies the City-established LOS screening criteria for projects generating fewer than 50 peak hour trips. Therefore, the proposed project does not warrant the preparation of a transportation impact study with LOS analysis based on the City-established LOS screening criteria. The proposed project satisfies the City-established vehicle miles traveled (VMT) screening criteria for projects generating less than 500 daily trips. Therefore, preparation of a transportation impact study with VMT analysis is not warranted, and the project may be presumed to result in a less than significant VMT impact. It has been a pleasure to assist you with this project. Should you have any questions or comments, please contact Perrie Ilercil at (714) 795-3100 ext. 103 or perrie@ganddini.com. ATTACHMENT Land Use: Warehouse Size: 71.985 TSF TRIP GENERATION RATES PER TSF1 AM Peak Hour PM Peak Hour In Out Rate In Out Rate All Vehicles ITE 150 77%23%0.120 28%72%0.150 1.380 Trucks Only ITE 150 52%48%0.020 53%47%0.020 0.430 Passenger Car (83.3% AM, 86.7% PM, 68.8% Daily)0.077 0.023 0.100 0.036 0.094 0.130 0.950 Truck (16.7% AM, 13.3% PM, 31.2% Daily)0.010 0.010 0.020 0.011 0.009 0.020 0.430 Truck Mix:SCAQMD 2-Axle Trucks (16.7%)0.002 0.002 0.004 0.002 0.002 0.004 0.072 3-Axle Trucks (20.7%)0.002 0.002 0.004 0.002 0.002 0.004 0.089 4+ Axle Trucks (62.6%)0.007 0.006 0.013 0.007 0.006 0.013 0.269 AM Peak Hour PM Peak Hour In Out Total In Out Total Passenger Car 6 2 8 3 7 10 68 Trucks 2-Axle Trucks 0.1 0.2 0.3 0.2 0.1 0.3 5 3-Axle Trucks 0.1 0.2 0.3 0.2 0.1 0.3 6 4+ Axle Trucks 0.5 0.4 0.9 0.5 0.4 0.9 19 Subtotal 1 0 1 0 1 1 31 7 2 9 3 8 11 99 Vehicle Type PCE Factor4 AM Peak Hour PM Peak Hour Daily In Out Total In Out Total Passenger Car 1.0 6 2 8 3 7 10 68 Trucks 2-Axle Trucks 2.0 0 1 1 0 1 1 10 3-Axle Trucks 2.5 0 1 1 1 0 1 15 4+ Axle Trucks 3.0 2 1 3 2 1 3 57 Subtotal 2 3 5 3 2 5 82 8 5 13 6 9 15 150 Notes: 1. TSF = Thousand Square Feet 3. PCE = Passenger Car Equivalent PCE3 TRIPS GENERATED Table 1 Project Trip Generation Vehicle Type Source2 Daily Rate VEHICLE TRIPS GENERATED Vehicle Type Daily Total Vehicle Trips Generated Total PCE Trips Generated 2. ITE = Institute of Transportation Engineers Trip Generation Manual (12th Edition, 2025); ### = ITE Land Use Code. SCAQMD = South Coast Air Quality Management District recommendations for non-cold storage high-cube warehouse. 4. PCE = passenger car equivalent. PCE factors are based on the City of Fontana Traffic Impact Analysis (TIA) Guidelines for Vehicle Miles Traveled (VMT) and Level of Service Assessment (LOS) (October 2020), “Analysis Process Section” Hilton Industrial Facility Transportation Screening Assessment 198667 ATTACHMENT A SITE PLAN APX-1 HI L T O N D R I V E BUILDING 1BUILDING 2 3 3 1 2 6 7 P.L. R.O.W. P.L. P.L. 4 5 TYP. LOW GROUND COVER PLANTING WITHIN R.O.W. PARKWAY PER LEGEND. TRANSFORMER LOCATION PER CIVIL PLANS. PLANT FICUS VINES ALONG WALL TO SCREEN TRANSFORMER FROM PUBLIC VIEW. PLANT DOUBLE ROW OF EVERGREEN SCREEN SHRUBS TO SCREEN PARKING FROM PUBLIC VIEW. 3:1 MAX. BERM PER CIVIL PLANS OBSERVE CITY'S SIGHT LINES VIEW LINE. TYPICAL. TYP. LOW GROUND COVER PLANTING WITHIN R.O.W. PARKWAY PER LEGEND. GRAVEL UNDER GATE SWING 30 ' - 0 " 30 ' - 0 " TREES SYMBOL TREE NAME QTY.WUCOLS *NEW STREET TREE ALONG HILTON DRIVE PODOCARPUS GRACILIOR, FERN PINE 24" BOX SIZE. 4 L SMALL ACCENT TREE LAGERSTROEMIA I. 'WATERMELON RED', CRAPE MYRTLE 24" BOX SIZE. 4 L NEW PARKING LOT SHADE TREE ULMUS PARVIFOLIA 'TRUE GREEN', EVERGREEN ELM 24" BOX SIZE. 14 L VERTICAL TREE ALONG BUILDING/ SECONDARY PARKING LOT TREE TRISTANIA LAURINA, WATER GUM TREE 15 GAL. SIZE. ALT: PODOCARPUS GRACILIOR, FERN PINE 9 L EVERGREEN SCREEN TREE PINUS ELDARICA, MONDELL PINE 36" BOX SIZE. 7 L PLANTING LEGEND *NOTE: PROPOSED STREET TREES SHALL BE CONSISTANT WITH EXISTING TREES ALONG HILTON DR. TO BE CONFIRMED IN THE FIELD. TOTAL # OF TREES = 38 TREES SHRUBS SHRUBS SHALL BE CHOSEN FROM THE FOLLOWING LIST:WUCOLS XYLOSMA CONGESTUM, SHINY LEAF XYLOSMA 5 GAL. SIZE L LEUCOPHYLLUM FRUTESCENS, TEXAS RANGER 5 GAL. SIZE L WESTRINGIA FRUTICOSA, COAST ROSEMARY 5 GAL. SIZE L ROSMARINUS 'TUSCAN BLUE', TUSCAN BLUE ROSEMARY 5 GAL. SIZE L BUXUS JAPONICA, JAPANESE BOXWOOD 5 GAL. SIZE L GROUND COVER/SHRUB MASSES GROUND COVER AND SHRUB MASSES SHALL BE CHOSEN FROM THE FOLLOWING LIST: WUCOLS SENECIO MANDRALISCAE, BLUE CHALKSTICKS 1 GAL. SIZE @ 24" O.C.L ROSMARINUS O. 'PROSTRATUS', CREEPING ROSEMARY 1 GAL. SIZE @ 30" O.C.L SALVIA GREGGII, AUTUMN SAGE 1 GAL. SIZE @ 36" O.C.L MUHLENBERGIA RIGENS, DEER GRASS 1 GAL. SIZE @ 42" O.C.L BACCHARIS PILULARIS, COYOTE BUSH 1 GAL. SIZE @ 42" O.C.L TYP. LOW GROUND COVER PLANTING WITH PUBLIC R.O.W. (PARKWAY) SUGGEST LANTANA DWARF YELLOW.L 1.NEW SIDEWALK PER CIVIL DWGS. 2.NEW STREET TREE ALONG HILTON DRIVE (MATCH EXISTING) 3.SMALL ACCENT TREE AT PROJECT FOCAL AREAS PER LEGEND 4.TYP. FOUNDATION SHRUB PER LEGEND 5.BROAD CANOPY PARKING LOT SHADE TREE PER LEGEND 6.DROUGHT TOLERANT GROUND COVER AND SHRUB PLANTING PER LEGEND 7.ENHANCED PAVING AT BUILDING ENTRY. INTEGRAL COLORED CONC. DESIGN KEY NOTES: VINE SYMBOL VINE NAME QTY.WUCOLS FICUS PUMILA, CREEPING FIG 5 GAL. SIZE @ 3'-0" O.C.5 L WUCOLS PLANT FACTOR THIS PROJECT IS LOCATED IN 'WUCOLS' REGION '4-SOUTH INLAND VALLEY'. H = HIGH WATER NEEDS M = MODERATE WATER NEEDS L = LOW WATER NEEDS VL= VERY LOW WATER NEEDS ·SLOPES GREATER THAN 3:1 SHALL BE STABILIZED WITH EROSION CONTROL GROUND COVER PER LEGEND, AND MULCH MATERIAL WITH 'BINDER' MATERIAL SHALL BE APPLIED FOR EROSION CONTROL. ·ROCK RIP-RAP MATERIAL SHALL BE INSTALLED WHERE DRAIN LINES CONNECT TO INFILTRATION AREAS. ·ALL UTILITY EQUIPMENT SUCH AS BACKFLOW UNITS, TRANSFORMERS, FIRE DETECTOR CHECKS AND FIRE CHECK VALVES WILL BE SCREENED WITH EVERGREEN PLANT MATERIAL ONCE FINAL LOCATIONS HAVE BEEN DETERMINED. GENERAL NOTES: THIS IS A CONCEPTUAL LANDSCAPE PLAN. IT IS BASED ON PRELIMINARY INFORMATION WHICH IS NOT FULLY VERIFIED AND MAY BE INCOMPLETE. IT IS MEANT AS A COMPARATIVE AID IN EXAMINING ALTERNATE DEVELOPMENT STRATEGIES AND ANY QUANTITIES INDICATED ARE SUBJECT TO REVISION AS MORE RELIABLE INFORMATION BECOMES AVAILABLE. IRRIGATION NOTE: THE PROJECT WILL BE EQUIPPED WITH A LOW FLOW IRRIGATION SYSTEM CONSISTING OF ET WEATHER BASED SMART CONTROLLER, LOW FLOW ROTORS, BUBBLER AND/ OR DRIP SYSTEMS USED THROUGHOUT. THE IRRIGATION WATER EFFICIENCY WILL MEET OR SURPASS THE CURRENT STATE MANDATED AB-1881 WATER ORDINANCE. PER MUNICIPAL CODE SECTION NO. 9-71(d) ALL LANDSCAPING AREAS WILL BE PROPERLY IRRIGATED FOR THE LIFE OF THE FACILITY TO ALLOW FOR PLANTS AND TREES TO MAINTAIN GROWTH. CONCEPTUAL PLAN NOTE: NORTH FEBRUARY 12, 2025 HILTON INDUSTRIAL FACILITY FONTANA, CA CONCEPTUAL LANDSCAPE PLAN L-1 80'40'60'20'0' SCALE: 1" = 20'-0" ETO FOR FONTANA AREA = 55.6 MAWA (210,969 GALLONS) = 55.6 X 0.62 X 0.45 X 19,560 MAWA (ANNUAL GALLONS ALLOWED) =ETO X 0.62 X ETAF X AREA PRELIMINARY WATER USE CALCULATIONS AVERAGE DAILY IRRIGATION WATER USE = 303,423 TOTAL LANDSCAPE AREA = 19,560 SQ. FT. LANDSCAPE DATA HILTON LANE, LLC P.O. BOX 54903 IRVINE, CA 92619 CONTACT: DOUG MCCAN REQUIRED TREE QUANTITY MATRIX ·TOTAL NUMBER OF PARKING STALLS = 104 STALLS ·TOTAL NUMBER OF TREES REQUIRED AT 1 TREE PER 4 STALLS 106 / 4 = 26 TREES ·TOTAL NUMBER OF TREES PROVIDED = 27 TREES BASED UPON PROJECT TREE INVENTORY CONDUCTED BY CITY'S CERTIFIED ARBORIST, THE TALLY OF REPLACEMENT TREES REQUIRED PURSUANT TO FONTANA MUNICIPAL CODE CHAPTER 28, ARTICLE III, SECTION 28-67 IS THIRTY-EIGHT 15-GALLON CONTAINER TREES. NUMBER OF 15-GALLON TREES PROVIDED ON-SITE = 38 TREES. PER MUNICIPAL CODE SECTION NO. 9-71(c) ALL LANDSCAPING WILL BE DROUGHT TOLERANT, AND TO THE EXTENT FEASIBLE, SPECIES WITH LOW BIOGENIC EMISSIONS. PALM TREES WILL NOT BE UTILIZED. PLANTING NOTE: TOTAL PARKING LOT AREA =16,714 SQ. FT. TOTAL SHADE AREA REQUIRED WITHIN 15 YRS. = 5,014 SQ. FT. TOTAL PROJECTED SHADE AREA WITHIN 15 YRS. =5,140 SQ. FT. PER MUNICIPAL CODE SECTION NO. 9-71(e) 30% OF PARKING STALL AREAS TO BE SHADED WITHIN 15 YEARS AFTER PLANTING PARKING LOT SHADING CALCULATIONS APX-2APX-2 APPENDIX C NOISE IMPACT ANALYSIS Tra!c Engineering # Transporta%on Planning # Parking # Noise & Vibra%on Air Quality # Global Climate Change # Health Risk Assessment HILTON INDUSTRIAL FACILITY PROJECT FOCUSED NOISE IMPACT ANALYSIS City of Fontana December 23, 2025 HIDDEN> HILTON INDUSTRIAL FACILITY PROJECT FOCUSED NOISE IMPACT ANALYSIS City of Fontana December 23, 2025 prepared by Roma Stromberg INCE, MS GANDDINI GROUP INC. 555 Parkcenter Drive, Suite 225 Santa Ana, California 92705 (714) 795-3100 | www.ganddini.com Project No. 19866 Hilton Industrial Facility Project Focused Noise Impact Analysis i 19866 TABLE OF CONTENTS EXECUTIVE SUMMARY .................................................................................................................................................. II 1. INTRODUCTION .................................................................................................................................................... 1 Purpose and Objectives ................................................................................................................................................. 1 Project Location ............................................................................................................................................................... 1 Project Description .......................................................................................................................................................... 1 2. NOISE FUNDAMENTALS .................................................................................................................................... 4 3. REGULATORY SETTING ...................................................................................................................................... 6 City of Fontana Municipal Code .................................................................................................................................. 6 Federal Transit Administration ..................................................................................................................................... 6 Federal Interagency Committee (FICON) ................................................................................................................. 7 4. ANALYTICAL METHODOLOGY AND MODEL PARAMETERS.................................................................. 9 Construction Noise Modeling ...................................................................................................................................... 9 Vehicle Noise Modeling ................................................................................................................................................. 9 5. CONSTRUCTION NOISE IMPACTS ................................................................................................................ 12 Construction Noise - Onsite ...................................................................................................................................... 12 Construction Noise - Offsite ..................................................................................................................................... 13 6. REFERENCES ......................................................................................................................................................... 15 APPENDICES Appendix A List of Acronyms Appendix B Definitions of Acoustical Terms Appendix C Construction Noise Model Worksheets LIST OF TABLES Table 1. FTA Detailed Analysis Construction Noise Criteria .................................................................................... 8 Table 2. CA/T Equipment Noise Emissions and Acoustical Usage Factor Database ...................................... 10 Table 3. Increase in Existing Noise Levels Associated with Project Generated Construction Vehicles................................................................................................................................................................ 14 LIST OF FIGURES Figure 1. Project Location Map .......................................................................................................................................... 2 Figure 2. Site Plan .................................................................................................................................................................. 3 Figure 3. A-Weighted Comparative Sound Levels ........................................................................................................ 5 Hilton Industrial Facility Project Focused Noise Impact Analysis ii 19866 EXECUTIVE SUMMARY The purpose of this report is to provide an assessment of the noise impacts resulting from construction of the proposed project and to identify mitigation measures that may be necessary to reduce those impacts. The 4.01-acre project site (APN: 1110-151-03) is located on the northside of Hilton Drive approximately 950 feet east of Redwood Avenue in the City of Fontana, California. The project site is currently vacant and zoned industrial in the West End Specific Plan. The proposed project involves the development of two warehouse buildings with a total of 71,985 square feet. Vehicle access for the project site is proposed via two driveways onto Hilton Drive. Project Construction Impacts Project construction noise levels at nearby sensitive receptors were calculated using the FTA methodology and it was determined that project construction noise levels will not exceed the FTA 90 dBA Leq (8-hour). construction noise standard for impacts to residential land uses. This impact would be less than significant. Hilton Industrial Facility Project Focused Noise Impact Analysis 1 19866 1. INTRODUCTION This section describes the purpose of this study and the proposed project. PURPOSE AND OBJECTIVES The purpose of this report is to provide an assessment of the noise impacts resulting from construction of the proposed project and to identify mitigation measures that may be necessary to reduce those impacts. The noise issues related to the proposed land use and development have been evaluated in light of applicable federal, state and local policies, including those of the City of Fontana in the context of the California Environmental Quality Act (CEQA). Although this is a technical report, effort has been made to write the report clearly and concisely. A list of acronyms and glossary are provided in Appendix A and Appendix B of this report to assist the reader with technical terms related to noise and vibration analysis. PROJECT LOCATION The 4.01-acre project site (APN: 1110-151-03) is located on the northside of Hilton Drive approximately 950 feet east of Redwood Avenue in the City of Fontana, California (See Figure 1). The project site is currently vacant and zoned industrial in the West End Specific Plan. PROJECT DESCRIPTION The proposed project involves the development of two warehouse buildings with a total of 71,985 square feet. Vehicle access for the project site is proposed via two driveways onto Hilton Drive. The proposed site plan is shown on Figure 2. 1 Figure 1 Project Location Map Hilton Industrial Facility Focused Noise Study 19866 N Site HILTON DR REDWOOD AVE FOOTHILL BLVD 2 Figure 2 Site Plan Hilton Industrial Facility Focused Noise Study 19866 N 3 Hilton Industrial Facility Project Focused Noise Impact Analysis 4 19866 2. NOISE FUNDAMENTALS Sound is a pressure wave created by a moving or vibrating source that travels through an elastic medium such as air. Noise is defined as unwanted or objectionable sound. The effects of noise on people can include general annoyance, interference with speech communication, sleep disturbance, and in extreme circumstances, hearing impairment. Commonly used noise terms are presented in Appendix B. The unit of measurement used to describe a noise level is the decibel (dB). The human ear is not equally sensitive to all frequencies within the sound spectrum. Therefore, the “A-weighted” noise scale, which weights the frequencies to which humans are sensitive, is used for measurements. Noise levels using A-weighted measurements are written dB(A) or dBA. From the noise source to the receiver, noise changes both in level and frequency spectrum. The most obvious is the decrease in noise as the distance from the source increases. The manner in which noise reduces with distance depends on whether the source is a point or line source as well as ground absorption, atmospheric effects and refraction, and shielding by natural and manmade features. Sound from point sources, such as air conditioning condensers, radiates uniformly outward as it travels away from the source in a spherical pattern. The noise drop-off rate associated with this geometric spreading is 6 dBA per each doubling of the distance (dBA/DD). Transportation noise sources such as roadways are typically analyzed as line sources, since at any given moment the receiver may be impacted by noise from multiple vehicles at various locations along the roadway. Because of the geometry of a line source, the noise drop-off rate associated with the geometric spreading of a line source is 3 dBA/DD. Decibels are measured on a logarithmic scale, which quantifies sound intensity in a manner similar to the Richter scale used for earthquake magnitudes. Thus, a doubling of the energy of a noise source, such as a doubled traffic volume, would increase the noise levels by 3 dBA; halving of the energy would result in a 3 dBA decrease. Figure 3 shows the relationship of various noise levels to commonly experienced noise events. Average noise levels over a period of minutes or hours are usually expressed as dBA Leq, or the equivalent noise level for that period of time. For example, Leq(8-hr) would represent an 8-hour average. When no period is specified, a one-hour average is assumed. Noise standards for transportation noise source/land use compatibility are stated in terms of the Community Noise Equivalent Level (CNEL) and the Day-Night Average Noise Level (DNL). CNEL is a 24-hour weighted average measure of community noise. CNEL is obtained by adding five decibels to sound levels in the evening (7:00 PM to 10:00 PM), and by adding ten decibels to sound levels at night (10:00 PM to 7:00 AM). This weighting accounts for the increased human sensitivity to noise during the evening and nighttime hours. DNL is a very similar 24-hour average measure that weights only the nighttime hours. It is widely accepted that the average healthy ear can barely perceive changes of 3 dBA; that a change of 5 dBA is readily perceptible, and that an increase (decrease) of 10 dBA sounds twice (half) as loud. This definition is recommended by the California Department of Transportation’s Technical Noise Supplement to the Traffic Noise Analysis Protocol (2013). 4 Figure 3 A-Weighted Comparative Sound Levels Hilton Industrial Facility Focused Noise Study 19866 © Ganddini Group, Inc. Based on Policy & Guidance from Federal Aviation Administration 5 Hilton Industrial Facility Project Focused Noise Impact Analysis 6 19866 3. REGULATORY SETTING CITY OF FONTANA MUNICIPAL CODE Section 18-63 Scope, enumeration of prohibited noises. a. This article shall apply to loud, excessive, impulsive, or intrusive interior and exterior sound or noise that annoys or disturbs persons of ordinary sensibilities emanating from any type of property or source within the city. b. The following acts, which create loud, excessive, impulsive, or intrusive sound or noise that annoys or disturbs persons of ordinary sensibilities from a distance of 50 feet or more from the edge of the property, structure or unit in which the source is located, are declared to be in violation of this article, but such enumeration shall not be deemed to be exclusive, namely:  Construction or repairing of buildings or structures. The erection (including excavating), demolition, alteration or repair of any building or structure other than between the hours of 7:00 AM and 6:00 PM on weekdays and between the hours of 8:00 a.m. and 5:00 p.m. on Saturdays, except in case of urgent necessity in the interest of public health and safety, and then only with a permit from the building inspector, which permit may be granted for a period not to exceed three days or less while the emergency continues and which permit may be renewed for periods of three days or less while the emergency continues. If the building inspector should determine that the public health and safety will not be impaired by the erection, demolition, alteration or repair of any building or structure or the excavation of streets and highways within the hours of 6:00 PM and 7:00 AM, and if he shall further determine that loss or inconvenience would result to any party in interest, he may grant permission for such work to be done on weekdays within the hours of 6:00 PM and 7:00 AM, upon application being made at the time the permit for the work is awarded or during the progress of the work. FEDERAL TRANSIT ADMINISTRATION IN THE ABSENCE OF LOCAL QUANTITATIVE CONSTRUCTION NOISE THRESHOLDS, THE FEDERAL TRANSIT ADMINISTRATION (FTA) PROVIDES GUIDELINES (FTA 2018) THAT CAN BE CONSIDERED REASONABLE CRITERIA FOR CONSTRUCTION NOISE ASSESSMENT. FTA CONSTRUCTION NOISE STANDARDS ARE PROVIDED IN FEDERAL INTERAGENCY COMMITTEE (FICON) The Federal Interagency Committee on Noise (FICON) developed guidance (1992) to be used for the assessment of project-generated permanent increases in noise levels that consider the ambient noise level. The FICON recommendations are based on studies that relate aircraft noise levels to the percentage of persons highly annoyed by aircraft noise. Although the FICON recommendations were specifically developed to assess aircraft noise impacts, these recommendations are often used in environmental noise impact assessments involving the use of cumulative noise exposure metrics, such as the average-daily noise level (CNEL) and equivalent continuous noise level (Leq). FICON standards as applied to increases due to construction noise would result in a significant impact if:  Existing noise levels are below 60 dBA, and the project results in a 5 dBA or greater increase; or  Existing noise levels range between 60 and 65 dBA, a the project results in a 3 dBA or greater increase; or  Existing noise levels exceed 65 dBA, and the project results in an increase of 1.5 dBA or greater.. 6 Hilton Industrial Facility Project Focused Noise Impact Analysis 7 19866 Table 1. FEDERAL INTERAGENCY COMMITTEE (FICON) The Federal Interagency Committee on Noise (FICON) developed guidance (1992) to be used for the assessment of project-generated permanent increases in noise levels that consider the ambient noise level. The FICON recommendations are based on studies that relate aircraft noise levels to the percentage of persons highly annoyed by aircraft noise. Although the FICON recommendations were specifically developed to assess aircraft noise impacts, these recommendations are often used in environmental noise impact assessments involving the use of cumulative noise exposure metrics, such as the average-daily noise level (CNEL) and equivalent continuous noise level (Leq). FICON standards as applied to increases due to construction noise would result in a significant impact if:  Existing noise levels are below 60 dBA, and the project results in a 5 dBA or greater increase; or  Existing noise levels range between 60 and 65 dBA, a the project results in a 3 dBA or greater increase; or  Existing noise levels exceed 65 dBA, and the project results in an increase of 1.5 dBA or greater.. 7 Day Night Residential 80 70 Commercial 85 85 Industrial 90 90 Source: Federal Transit Administration, Transit Noise and Vibration Impact Assessment Manual, 2018. Leq,equip(8 hr), dBA Land Use Table 1 Detailed Analysis Construction Noise Criteria Hilton Industrial Facility Project Focused Noise Impact Analysis 198668 Hilton Industrial Facility Project Focused Noise Impact Analysis 9 19866 4. ANALYTICAL METHODOLOGY AND MODEL PARAMETERS This section discusses the analysis methodologies used to assess noise impacts. CONSTRUCTION NOISE MODELING Construction noise will vary depending on the construction process, type of equipment involved, location of the construction site with respect to sensitive receptors, the schedule proposed to carry out each task (e.g., hours and days of the week) and the duration of the construction work. Construction noise associated with the proposed project was calculated at the sensitive receptor locations utilizing methodology presented in the Federal Transit Administration (FTA) Transit Noise and Vibration Impact Assessment Manual (2018) together with several key construction parameters, including: distance to each sensitive receiver, equipment usage, percent usage factor, and baseline parameters for the project site. Distances to receptors were based on the acoustical center of the project site. The equipment used to calculate the construction noise levels for each phase were based on the assumptions provided in the CalEEMod modeling. Sound emission levels associated with typical construction equipment as well as typical usage factors are provided in. Construction noise worksheets are provided in Appendix C. VEHICLE NOISE MODELING Noise associated with existing traffic volumes and existing plus project construction volumes was modeled using spreadsheets that use the FHWA Traffic Noise Prediction Model (FHWA-RD-77-108) formulas. The FHWA model arrives at the predicted noise level through a series of adjustments to the Reference Energy Mean Emission Level (REMEL). Key model parameters and REMEL adjustments are presented below:  Roadway classification (e.g., freeway, major arterial, arterial, secondary, collector, etc.),  Roadway active width (distance between the center of the outer most travel lanes on each side of  the roadway),  Average Daily Traffic (ADT) Volumes, Travel Speeds, Percentages of automobiles, medium trucks and  heavy trucks,  Roadway grade and angle of view,  Site conditions (e.g., soft vs. hard), and  Percentage of total ADT which flows each hour throughout a 24-hour period. Traffic noise levels were calculated at the right-of-way based on distance from the centerline of the analyzed roadway. The modeling is theoretical and does not take into account any existing barriers, structures, and/or topographical features that may further reduce noise levels. Therefore, the modeled noise levels are shown for comparative purposes only to show the difference between with and without project conditions. Traffic noise calculation worksheets are included in Appendix D. 9 Table 2 (1 of 2) CA/T Equipment Noise Emissions and Acoustical Usage Factor Database Equipment Description Impact Device? Acoustical Use Factor (%) Spec. Lmax @ 50ft (dBA, slow) Actual Measured Lmax @ 50ft (dBA, slow) No. of Actual Data Samples (Count) All Other Equipment > 5 HP No 50 85 -N/A-0 Auger Drill Rig No 20 85 84 36 Backhoe No 40 80 78 372 Bar Bender No 20 80 -N/A-0 Blasting Yes -N/A-94 -N/A-0 Boring Jack Power Unit No 50 80 83 1 Chain Saw No 20 85 84 46 Clam Shovel (dropping)Yes 20 93 87 4 Compactor (ground)No 20 80 83 57 Compressor (air)No 40 80 78 18 Concrete Batch Plant No 15 83 -N/A-0 Concrete Mixer Truck No 40 85 79 40 Concrete Pump Truck No 20 82 81 30 Concrete Saw No 20 90 90 55 Crane No 16 85 81 405 Dozer No 40 85 82 55 Drill Rig Truck No 20 84 79 22 Drum Mixer No 50 80 80 1 Dump Truck No 40 84 76 31 Excavator No 40 85 81 170 Flat Bed Truck No 40 84 74 4 Forklift2,3 No 50 n/a 61 n/a Front End Loader No 40 80 79 96 Generator No 50 82 81 19 Generator (<25KVA, VMS signs)No 50 70 73 74 Gradall No 40 85 83 70 Grader No 40 85 -N/A-0 Grapple (on backhoe)No 40 85 87 1 Horizontal Boring Hydr. Jack No 25 80 82 6 Hydra Break Ram Yes 10 90 -N/A-0 Impact Pile Driver Yes 20 95 101 11 Jackhammer Yes 20 85 89 133 Man Lift No 20 85 75 23 Mounted Impact hammer (hoe ram)Yes 20 90 90 212 Pavement Scarafier No 20 85 90 2 Paver No 50 85 77 9 Pickup Truck No 50 85 77 9 Paving Equipment No 50 85 77 9 Pneumatic Tools No 50 85 85 90 Hilton Industrial Facility Project Focused Noise Impact Analysis 1986610 Table 2 (2 of 2) CA/T Equipment Noise Emissions and Acoustical Usage Factor Database Equipment Description Impact Device? Acoustical Use Factor (%) Spec. Lmax @ 50ft (dBA, slow) Actual Measured Lmax @ 50ft (dBA, slow) No. of Actual Data Samples (Count) Pumps No 50 77 81 17 Refrigerator Unit No 100 82 73 3 Rivit Buster/chipping gun Yes 20 85 79 19 Rock Drill No 20 85 81 3 Roller No 20 85 80 16 Sand Blasting (Single Nozzle)No 20 85 96 9 Scraper No 40 85 84 12 Shears (on backhoe)No 40 85 96 5 Slurry Plant No 100 78 78 1 Slurry Trenching Machine No 50 82 80 75 Soil Mix Drill Rig No 50 80 -N/A-0 Tractor No 40 84 -N/A-0 Vacuum Excavator (Vac-truck)No 40 85 85 149 Vacuum Street Sweeper No 10 80 82 19 Ventilation Fan No 100 85 79 13 Vibrating Hopper No 50 85 87 1 Vibratory Concrete Mixer No 20 80 80 1 Vibratory Pile Driver No 20 95 101 44 Warning Horn No 5 85 83 12 Welder/Torch No 40 73 74 5 Notes: (1) Source: FHWA Roadway Construction Noise Model User's Guide January 2006. (2) Warehouse & Forklift Noise Exposure - NoiseTesting.info Carl Stautins, November 4, 2014 http://www.noisetesting.info/blog/carl-strautins/page-3/ (3) Data provided Leq as measured at the operator. Sound Level at 50 feet is calculated using Inverse Square Law. Hilton Industrial Facility Project Focused Noise Impact Analysis 1986611 Hilton Industrial Facility Project Focused Noise Impact Analysis 12 19866 5. CONSTRUCTION NOISE IMPACTS CONSTRUCTION NOISE - ONSITE The City of Fontana has set restrictions to control noise impacts associated with the construction of the proposed project. According to Section 18-63[b][7] of the city’s Municipal Code, Construction or repairing of buildings or structures, construction activity is limited: between the hours of 7:00 a.m. and 6:00 p.m. on weekdays and between the hours of 8:00 a.m. and 5:00 p.m. on Saturdays except in the case of urgent necessity. Project construction noise levels are, therefore, considered exempt from municipal regulation if activities occur within the hours specified in the City of Fontana Municipal Code, Section 18-63[7] of 7:00 a.m. to 6:00 p.m. on weekdays and between the hours of 8:00 a.m. to 5:00 p.m. on Saturdays. However, neither the General Plan nor the Municipal Code establish numeric maximum acceptable construction source noise levels at potentially affected receivers for CEQA analysis purposes. Therefore, a numerical construction threshold based on Federal Transit Administration (FTA) Transit Noise and Vibration Impact Assessment Manual is used for analysis of daytime construction impacts, as discussed below. According to the FTA, local noise ordinances are typically not very useful in evaluating construction noise. They usually relate to nuisance and hours of allowed activity, and sometimes specify limits in terms of maximum levels, but are generally not practical for assessing the impact of a construction project. Project construction noise criteria should account for the existing noise. AS SHOWN IN FEDERAL INTERAGENCY COMMITTEE (FICON) The Federal Interagency Committee on Noise (FICON) developed guidance (1992) to be used for the assessment of project-generated permanent increases in noise levels that consider the ambient noise level. The FICON recommendations are based on studies that relate aircraft noise levels to the percentage of persons highly annoyed by aircraft noise. Although the FICON recommendations were specifically developed to assess aircraft noise impacts, these recommendations are often used in environmental noise impact assessments involving the use of cumulative noise exposure metrics, such as the average-daily noise level (CNEL) and equivalent continuous noise level (Leq). FICON standards as applied to increases due to construction noise would result in a significant impact if:  Existing noise levels are below 60 dBA, and the project results in a 5 dBA or greater increase; or  Existing noise levels range between 60 and 65 dBA, a the project results in a 3 dBA or greater increase; or  Existing noise levels exceed 65 dBA, and the project results in an increase of 1.5 dBA or greater.. 12 Hilton Industrial Facility Project Focused Noise Impact Analysis 13 19866 Table 1, the FTA considers a daytime exterior construction noise level of 80 dBA Leq(8-hour) for noise sensitive residential land uses, 85 dBA Leq(8-hour) for commercial uses, and 90 dBA Leq(8-hour) for industrial uses. Construction noise would affect adjacent light industrial/warehouse land uses. Therefore, the proposed project would result in a significant impact if it:  Results in noise levels that exceed 90 dBA Leq (8-hour) at the property line of an existing industrial land use. Project construction noise levels at nearby sensitive receptors were calculated using the FTA methodology. Construction noise modeling worksheets for each phase are provided in Appendix C. Modeled construction noise levels reach up to 70.7 dBA Leq at the property line shared with the industrial warehouse land use to the north, up to 68.5 dBA Leq at the property line shared with the industrial land use to the south, and up to 77.9 dBA Leq at the industrial properties located to the east and west. Project construction noise levels will not exceed the FTA 90 dBA Leq (8-hour) construction noise standard for impacts to residential land uses. This impact would be less than significant. CONSTRUCTION NOISE - OFFSITE Project construction would generate up to 31 employee trips and 12 truck trips per day traveling to and from the project site via Hilton Avenue, Redwood Avenue and Hemlock Avenue to Foothill Boulevard where project trips would result in negligible increases in ambient noise levels. There are existing residential land uses along Redwood Avenue and Hemlock Avenue that would be exposed to these trips. Existing noise levels and existing plus project construction noise levels were calculated using FHWA methodology and then compared to the FICON increase thresholds presented in Section 3 of this report. Spreadsheets and noise existing noise measurements are provided in Appendix D. As shown in Table 3, existing noise levels range between 62.9 and 65.6 dBA CNEL and existing plus project construction noise levels would range between 63.2 and 65.7 dBA CNEL. Project construction traffic would result in a less than 1 dB increase along both roadways and would not exceed the applicable FICON noise increase thresholds. Impacts would be less than significant and no mitigation measures are required. 13 Existing Noise Level1 Existing Plus Project Increase Applicable Threhsold2 Hemlock Ave 62.9 63.2 0.3 3 No Redwood Ave 65.6 65.7 0.1 1.5 No Notes: dBA, CNEL 1. Measured Existing Noise Levels (Appendix D). The measured Leq was converted to CNEL. 2. FICON Thresholds as presented in Section 3. Table 3 Increase in Existing Noise Levels Associated with Project Generated Construction Vehicles Exceeds Threshold?Roadway Hilton Industrial Facility Project Focused Noise Impact Analysis 1986614 Hilton Industrial Facility Project Focused Noise Impact Analysis 15 19866 6. REFERENCES Fontana, City of Municipal Code 1863(b)(2) 2018 Fontana Forward General Plan Update 2015-2035 Draft Environmental Impact Report. June 8. 2018 Fontana Forward General Plan Update 2015-2035. November 13. Lilburn Corporation 2025 Hilton Industrial Facility CalEEMod Construction Modeling Output U.S. Federal Transit Administration (FTA) 2018 Transit Noise and Vibration Impact Assessment Manual. Typical Construction Equipment Vibration Emissions. U.S. Department of Transportation 2006 FHWA Roadway Construction Noise Model User’s Guide. January. 15 Hilton Industrial Facility Project Focused Noise Impact Analysis 16 19866 APPENDICES Appendix A List of Acronyms Appendix B Definitions of Acoustical Terms Appendix C Construction Noise Model Worksheets Appendix D FHWA Construction Vehicle Noise Worksheets Apx-1 APPENDIX A LIST OF ACRONYMS Apx-2 Term Definition ADT ANSI CEQA CNEL D/E/N dB dBA or dB(A) dBA/DD dBA Leq EPA FHWA L02,L08,L50,L90 DNL Leq(x) Leq Lmax Lmin Lp LOS C Lw OPR PPV RCNM REMEL RMS Average Daily Traffic American National Standard Institute California Environmental Quality Act Community Noise Equivalent Level Day / Evening / Night Decibel Decibel "A-Weighted" Decibel per Double Distance Average Noise Level over a Period of Time Environmental Protection Agency Federal Highway Administration A-weighted Noise Levels at 2 percent, 8 percent, 50 percent, and 90 percent, respectively, of the time period Day-Night Average Noise Level Equivalent Noise Level for '"x" period of time Equivalent Noise Level Maximum Level of Noise (measured using a sound level meter) Minimum Level of Noise (measured using a sound level meter) Sound Pressure Level Level of Service C Sound Power Level California Governor's Office of Planning and Research Peak Particle Velocities Road Construction Noise Model Reference Energy Mean Emission Level Root Mean Square Apx-3 APPENDIX B DEFINITIONS OF ACOUSTICAL TERMS Apx-4 Term Definition Ambient Noise Level The all-encompassing noise environment associated with a given environment, at a specified time, usually a composite of sound from many sources, at many directions, near and far, in which usually no particular sound is dominant. A-Weighted Sound Level, dBA The sound level obtained by use of A-weighting. The A-weighting filter de-emphasizes the very low and very high frequency components of the sound in a manner similar to the frequency response of the human ear. CNEL Community Noise Equivalent Level. CNEL is a weighted 24-hour noise level that is obtained by adding five decibels to sound levels in the evening (7:00 PM to 10:00 PM), and by adding ten decibels to sound levels at night (10:00 PM to 7:00 AM). This weighting accounts for the increased human sensitivity to noise during the evening and nighttime hours. Decibel, dB A logarithmic unit of noise level measurement that relates the energy of a noise source to that of a constant reference level; the number of decibels is 10 times the logarithm (to the base 10) of this ratio. DNL, Ldn Day Night Level. The DNL, or Ldn is a weighted 24-hour noise level that is obtained by adding ten decibels to sound levels at night (10:00 PM to 7:00 AM). This weighting accounts for the increased human sensitivity to noise during the nighttime hours. Equivalent Continuous Noise Level, Leq A level of steady state sound that in a stated time period, and a stated location, has the same A-weighted sound energy as the time-varying sound. Fast/Slow Meter Response The fast and slow meter responses are different settings on a sound level meter. The fast response setting takes a measurement every 100 milliseconds, while a slow setting takes one every second. Frequency, Hertz In a function periodic in time, the number of times that the quantity repeats itself in one second (i.e., the number of cycles per second). L02, L08, L50, L90 The A-weighted noise levels that are equaled or exceeded by a fluctuating sound level, 2 percent, 8 percent, 50 percent, and 90 percent of a stated time period, respectively. Lmax, Lmin Lmax is the RMS (root mean squared) maximum level of a noise source or environment measured on a sound level meter, during a designated time interval, using fast meter response. Lmin is the minimum level. Offensive/ Offending/Intrusive Noise The noise that intrudes over and above the existing ambient noise at a given location. The relative intrusiveness of sound depends on its amplitude, duration, frequency, and time of occurrence, and tonal information content as well as the prevailing ambient noise level. Root Mean Square (RMS) A measure of the magnitude of a varying noise source quantity. The name derives from the calculation of the square root of the mean of the squares of the values. It can be calculated from either a series of lone values or a continuous varying function. Apx-5 APPENDIX C CONSTRUCTION NOISE MODEL WORKSHEETS Apx-6 Construction Phase Equipment Item # of Items Item Lmax at 50 feet, dBA1 Distance to Receptor3 Item Usage Percent Usage Factor Dist. Correction dB Usage Adj. dB Receptor Item Lmax, dBA Receptor Item Leq, dBA Rubber Tired Dozers 3 82 323 40 1.20 -16.2 0.8 65.8 66.6 Tractors/Loaders/Backhoes 4 84 323 40 1.60 -16.2 2.0 67.8 69.8 Log Sum 69.8 Excavator 1 85 323 40 0.40 -16.2 -4.0 68.8 64.8 Graders 1 85 323 40 0.40 -16.2 -4.0 68.8 64.8 Rubber Tired Dozers 1 82 323 40 0.40 -16.2 -4.0 65.8 61.8 Tractors/Loaders/Backhoes 3 84 323 40 1.20 -16.2 0.8 67.8 68.6 Log Sum 70.7 Cranes 1 81 323 16 0.16 -16.2 -8.0 64.8 56.8 Forklifts2 3 48 323 40 1.20 -16.2 0.8 31.8 32.6 Generator Sets 1 81 323 50 0.50 -16.2 -3.0 64.8 61.8 Tractors/Loaders/Backhoes 1 84 323 40 0.40 -16.2 -4.0 67.8 63.8 Welders 1 73 323 40 0.40 -16.2 -4.0 56.8 52.8 Log Sum 66.6 Tractors/Loaders/Backhoes 1 84 323 40 0.40 -16.2 -4.0 67.8 63.8 Pavers 1 77 323 50 0.50 -16.2 -3.0 60.8 57.8 Paving Equipment 2 77 323 50 1.00 -16.2 0.0 60.8 60.8 Rollers 2 80 323 20 0.40 -16.2 -4.0 63.8 59.8 Cement and Mortar Mixers 2 80 323 20 0.40 -16.2 -4.0 63.8 59.8 Log Sum 64.4 Air Compressors 1 78 323 40 0.40 -16.2 -4.0 61.8 57.8 Log Sum 57.8 Notes: (1) Source: Referenced noise levels from the Federal Transit Administration (FTA) Transit Noise and Vibration Impact Assessment Manual (September 2018) and the FHWA Roadway Construction Noise Model User's Guide (January 2006) (2) Source: SoundPLAN reference list. (3) Distance to receptor calculated from center of site. Construction noise projected from the center of the project site to nearest sensitive use (property line). Architectural Coating Paving Receptor - Warehouse Land Use to the North Site Preparation Grading Building Construction Apx-7 Construction Phase Equipment Item # of Items Item Lmax at 50 feet, dBA1 Distance to Receptor3 Item Usage Percent Usage Factor Dist. Correction dB Usage Adj. dB Receptor Item Lmax, dBA Receptor Item Leq, dBA Rubber Tired Dozers 3 82 415 40 1.20 -18.4 0.8 63.6 64.4 Tractors/Loaders/Backhoes 4 84 415 40 1.60 -18.4 2.0 65.6 67.7 Log Sum 67.7 Excavator 1 85 415 40 0.40 -18.4 -4.0 66.6 62.6 Graders 1 85 415 40 0.40 -18.4 -4.0 66.6 62.6 Rubber Tired Dozers 1 82 415 40 0.40 -18.4 -4.0 63.6 59.6 Tractors/Loaders/Backhoes 3 84 415 40 1.20 -18.4 0.8 65.6 66.4 Log Sum 68.5 Cranes 1 81 415 16 0.16 -18.4 -8.0 62.6 54.7 Forklifts2 3 48 415 40 1.20 -18.4 0.8 29.6 30.4 Generator Sets 1 81 415 50 0.50 -18.4 -3.0 62.6 59.6 Tractors/Loaders/Backhoes 1 84 415 40 0.40 -18.4 -4.0 65.6 61.6 Welders 1 73 415 40 0.40 -18.4 -4.0 54.6 50.6 Log Sum 64.4 Tractors/Loaders/Backhoes 1 84 415 40 0.40 -18.4 -4.0 65.6 61.6 Pavers 1 77 415 50 0.50 -18.4 -3.0 58.6 55.6 Paving Equipment 2 77 415 50 1.00 -18.4 0.0 58.6 58.6 Rollers 2 80 415 20 0.40 -18.4 -4.0 61.6 57.6 Cement and Mortar Mixers 2 80 415 20 0.40 -18.4 -4.0 61.6 57.6 Log Sum 62.2 Air Compressors 1 78 415 40 0.40 -18.4 -4.0 59.6 55.6 Log Sum 55.6 Notes: (1) Source: Referenced noise levels from the Federal Transit Administration (FTA) Transit Noise and Vibration Impact Assessment Manual (September 2018) and the FHWA Roadway Construction Noise Model User's Guide (January 2006) (2) Source: SoundPLAN reference list. (3) Distance to receptor calculated from center of site. Construction noise projected from the center of the project site to nearest sensitive use (property line). Paving Light Industrial Land Use to the South Site Preparation Grading Building Construction Architectural Coating Apx-8 Construction Phase Equipment Item # of Items Item Lmax at 50 feet, dBA1 Distance to Receptor3 Item Usage Percent Usage Factor Dist. Correction dB Usage Adj. dB Receptor Item Lmax, dBA Receptor Item Leq, dBA Rubber Tired Dozers 3 82 141 40 1.20 -9.0 0.8 73.0 73.8 Tractors/Loaders/Backhoes 4 84 141 40 1.60 -9.0 2.0 75.0 77.0 Log Sum 77.0 Excavator 1 85 141 40 0.40 -9.0 -4.0 76.0 72.0 Graders 1 85 141 40 0.40 -9.0 -4.0 76.0 72.0 Rubber Tired Dozers 1 82 141 40 0.40 -9.0 -4.0 73.0 69.0 Tractors/Loaders/Backhoes 3 84 141 40 1.20 -9.0 0.8 75.0 75.8 Log Sum 77.9 Cranes 1 81 141 16 0.16 -9.0 -8.0 72.0 64.0 Forklifts2 3 48 141 40 1.20 -9.0 0.8 39.0 39.8 Generator Sets 1 81 141 50 0.50 -9.0 -3.0 72.0 69.0 Tractors/Loaders/Backhoes 1 84 141 40 0.40 -9.0 -4.0 75.0 71.0 Welders 1 73 141 40 0.40 -9.0 -4.0 64.0 60.0 Log Sum 73.8 Tractors/Loaders/Backhoes 1 84 141 40 0.40 -9.0 -4.0 75.0 71.0 Pavers 1 77 141 50 0.50 -9.0 -3.0 68.0 65.0 Paving Equipment 2 77 141 50 1.00 -9.0 0.0 68.0 68.0 Rollers 2 80 141 20 0.40 -9.0 -4.0 71.0 67.0 Cement and Mortar Mixers 2 80 141 20 0.40 -9.0 -4.0 71.0 67.0 Log Sum 71.6 Air Compressors 1 78 141 40 0.40 -9.0 -4.0 69.0 65.0 Log Sum 65.0 Notes: (1) Source: Referenced noise levels from the Federal Transit Administration (FTA) Transit Noise and Vibration Impact Assessment Manual (September 2018) and the FHWA Roadway Construction Noise Model User's Guide (January 2006) (2) Source: SoundPLAN reference list. (3) Distance to receptor calculated from center of site. Construction noise projected from the center of the project site to nearest sensitive use (property line). Paving Receptor - Light Industrial Land Uses to the East and West Site Preparation Grading Building Construction Architectural Coating Apx-9 APPENDIX D FHWA CONSTRUCTION VEHICLE NOISE WORKSHEETS Apx-10 FHWA Sound32 Spreadsheet Existing Traffic Noise Project:Hilton Ave Industrial Road:Hemlock Ave Segment:Hilton Avenue to Foothill Boulevard DAYTIME EVENING NIGHTTIME ADT 124.00 AUTOS M.TRUCKS H.TRUCKS AUTOS M.TRUCKS H.TRUCKS AUTOS M.TRUCKS H.TRUCKS SPEED 35.00 -------------------------------------------- ----------------------- ----------------------- ----------------------- ----------------------- ----------------------- ----------------------- ----------------------- ----------------------- ----------------------- DISTANCE 30.00 INPUT PARAMETERS Vehicles per hour 7.85 0.18 11.53 5.23 0.04 1.44 1.30 0.03 1.92 % A 98 Speed in MPH 35.00 35.00 35.00 35.00 35.00 35.00 35.00 35.00 35.00 Left angle -90.00 -90.00 -90.00 -90.00 -90.00 -90.00 -90.00 -90.00 -90.00 Right angle 90.00 90.00 90.00 90.00 90.00 90.00 90.00 90.00 90.00 % MT 2 NOISE CALCULATIONS Reference levels 65.11 74.83 80.05 65.11 74.83 80.05 65.11 74.83 80.05 % HT 129 ADJUSTMENTS Flow 3.20 -13.31 4.87 1.43 -19.67 -4.16 -4.62 -21.22 -2.91 Distance 2.15 2.15 2.15 2.15 2.15 2.15 2.15 2.15 2.15 LEFT -90.00 Finite Roadway 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 RIGHT 90.00 Barrier 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Grade 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 CNEL 62.89 Constant -25.00 -25.00 -25.00 -25.00 -25.00 -25.00 -25.00 -25.00 -25.00 DAY LEQ 62.18 LEQ 45.46 38.67 62.07 43.69 32.31 53.03 37.64 30.76 54.28 Day hour 89.00 Absorbtive? no DAY LEQ 62.18 EVENING LEQ 53.54 NIGHT LEQ 54.39 Use hour? no GRADE dB 0.00 CNEL 62.89 Apx-11 FHWA Sound32 Spreadsheet Existing Plus Project Traffic Noise Project:Hilton Ave Industrial Road:Hemlock Ave Segment:Hilton Avenue to Foothill Boulevard DAYTIME EVENING NIGHTTIME ADT 167.00 AUTOS M.TRUCKS H.TRUCKS AUTOS M.TRUCKS H.TRUCKS AUTOS M.TRUCKS H.TRUCKS SPEED 35.00 -------------------------------------------- ----------------------- ----------------------- ----------------------- ----------------------- ----------------------- ----------------------- ----------------------- ----------------------- ----------------------- DISTANCE 30.00 INPUT PARAMETERS Vehicles per hour 9.85 0.18 12.40 6.56 0.04 1.55 1.63 0.03 2.06 % A 91.33 Speed in MPH 35.00 35.00 35.00 35.00 35.00 35.00 35.00 35.00 35.00 Left angle -90.00 -90.00 -90.00 -90.00 -90.00 -90.00 -90.00 -90.00 -90.00 Right angle 90.00 90.00 90.00 90.00 90.00 90.00 90.00 90.00 90.00 % MT 1.49 NOISE CALCULATIONS Reference levels 65.11 74.83 80.05 65.11 74.83 80.05 65.11 74.83 80.05 % HT 102.97 ADJUSTMENTS Flow 4.19 -13.31 5.19 2.42 -19.67 -3.85 -3.63 -21.22 -2.60 Distance 2.15 2.15 2.15 2.15 2.15 2.15 2.15 2.15 2.15 LEFT -90.00 Finite Roadway 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 RIGHT 90.00 Barrier 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Grade 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 CNEL 63.22 Constant -25.00 -25.00 -25.00 -25.00 -25.00 -25.00 -25.00 -25.00 -25.00 DAY LEQ 62.51 LEQ 46.45 38.67 62.38 44.68 32.31 53.34 38.63 30.76 54.59 Day hour 89.00 Absorbtive? no DAY LEQ 62.51 EVENING LEQ 53.93 NIGHT LEQ 54.72 Use hour? no GRADE dB 0.00 CNEL 63.22 Apx-12 FHWA Sound32 Spreadsheet Existing Traffic Noise Project:Hilton Ave Industrial Road:Redwood Ave Segment:Hilton Avenue to Foothill Boulevard DAYTIME EVENING NIGHTTIME ADT 232.00 AUTOS M.TRUCKS H.TRUCKS AUTOS M.TRUCKS H.TRUCKS AUTOS M.TRUCKS H.TRUCKS SPEED 35.00 -------------------------------------------- ----------------------- ----------------------- ----------------------- ----------------------- ----------------------- ----------------------- ----------------------- ----------------------- ----------------------- DISTANCE 30.00 INPUT PARAMETERS Vehicles per hour 14.68 0.33 21.57 9.78 0.08 2.69 2.43 0.05 3.59 % A 98 Speed in MPH 35.00 35.00 35.00 35.00 35.00 35.00 35.00 35.00 35.00 Left angle -90.00 -90.00 -90.00 -90.00 -90.00 -90.00 -90.00 -90.00 -90.00 Right angle 90.00 90.00 90.00 90.00 90.00 90.00 90.00 90.00 90.00 % MT 2 NOISE CALCULATIONS Reference levels 65.11 74.83 80.05 65.11 74.83 80.05 65.11 74.83 80.05 % HT 129 ADJUSTMENTS Flow 5.92 -10.59 7.59 4.16 -16.95 -1.44 -1.90 -18.50 -0.19 Distance 2.15 2.15 2.15 2.15 2.15 2.15 2.15 2.15 2.15 LEFT -90.00 Finite Roadway 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 RIGHT 90.00 Barrier 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Grade 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 CNEL 65.61 Constant -25.00 -25.00 -25.00 -25.00 -25.00 -25.00 -25.00 -25.00 -25.00 DAY LEQ 64.90 LEQ 48.18 41.39 64.79 46.41 35.03 55.75 40.36 33.48 57.00 Day hour 89.00 Absorbtive? no DAY LEQ 64.90 EVENING LEQ 56.26 NIGHT LEQ 57.11 Use hour? no GRADE dB 0.00 CNEL 65.61 Apx-13 FHWA Sound32 Spreadsheet Existing Plus Project Traffic Noise Project:Hilton Ave Industrial Road:Redwood Ave Segment:Hilton Avenue to Foothill Boulevard DAYTIME EVENING NIGHTTIME ADT 275.00 AUTOS M.TRUCKS H.TRUCKS AUTOS M.TRUCKS H.TRUCKS AUTOS M.TRUCKS H.TRUCKS SPEED 35.00 -------------------------------------------- ----------------------- ----------------------- ----------------------- ----------------------- ----------------------- ----------------------- ----------------------- ----------------------- ----------------------- DISTANCE 30.00 INPUT PARAMETERS Vehicles per hour 2.00 0.33 22.44 1.33 0.08 2.80 0.33 0.05 3.74 % A 11.27 Speed in MPH 35.00 35.00 35.00 35.00 35.00 35.00 35.00 35.00 35.00 Left angle -90.00 -90.00 -90.00 -90.00 -90.00 -90.00 -90.00 -90.00 -90.00 Right angle 90.00 90.00 90.00 90.00 90.00 90.00 90.00 90.00 90.00 % MT 1.69 NOISE CALCULATIONS Reference levels 65.11 74.83 80.05 65.11 74.83 80.05 65.11 74.83 80.05 % HT 113.19 ADJUSTMENTS Flow -2.73 -10.59 7.76 -4.50 -16.95 -1.27 -10.55 -18.50 -0.02 Distance 2.15 2.15 2.15 2.15 2.15 2.15 2.15 2.15 2.15 LEFT -90.00 Finite Roadway 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 RIGHT 90.00 Barrier 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Grade 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 CNEL 65.69 Constant -25.00 -25.00 -25.00 -25.00 -25.00 -25.00 -25.00 -25.00 -25.00 DAY LEQ 64.99 LEQ 39.53 41.39 64.96 37.76 35.03 55.92 31.71 33.48 57.17 Day hour 89.00 Absorbtive? no DAY LEQ 64.99 EVENING LEQ 56.02 NIGHT LEQ 57.20 Use hour? no GRADE dB 0.00 CNEL 65.69 Apx-14 Noise Measurement Field Data Project Name:Hilton Industrial Facility, City of Fontana Date: Project #: Noise Measurement #: Technician: Weather: Settings: SLOW FAST Temperature: 58 deg F Wind: 4 mph Humidity:64%Terrain: Start Time:2:03 PM End Time:2:18 PM Run Time: Leq:62.2 dB Traffic noise from the 33 vehicles passing STNM2 microphone travelling N-S Lmax 78.7 dB on Hemlock Ave. L2 72.1 dB Traffic noise from traffic travelling E-W on Foothill Blvd. DMV building has an L8 65.4 dB outside " Now serving… " PA anouncing system. Distant train horns. L25 59.0 dB L50 54.7 dB NOISE METER: CALIBRATOR: MAKE: MAKE: MODEL: MODEL: SERIAL NUMBER: SERIAL NUMBER: FACTORY CALIBRATION DATE: FIELD CALIBRATION DATE: November 20, 2025 Ian Edward Gallagher Nearest Address or Cross Street:8025 Hemlock Avenue, Fontana, CA 92336 STNM2 Run Time 15 minutes 19866 Primary Noise Source: Secondary Noise Sources: Flat Site Description (Type of Existing Land Use and any other notable features): SoundTrack LXT Class 1 Overcast. Sunset: 4:43 PM Larson Davis CAL 250 Project Site: Eastern sidewalk outside apparent multifamily trailer park. Adjacent: Hemlock Ave running N-S just W of STNM2, Foothill Blvd running E-W, 460' S of STNM2. DMV with outside announcing system 390' W of STNM2. 7/10/20247/31/2024 11/20/2025 FACTORY CALIBRATION DATE: Larson Davis LXT1 3099 Larson Davis CAL 250 2723 Apx-15 Noise Measurement Field Data PHOTOS: Project Site: Eastern sidewalk outside apparent multifamily trailer park. STNM2 looking SE from Hemlock Avenue sidewalk towards entry/exit way to STNM2 looking SW across Hemlock Avenue towards entry/exit to parking multifamily trailor park 8025 Hemlock Avenue, Fontana.lot of building 8026 Hemlock Avenue, Fontana. Apx-16 Apx-17 Apx-18 Apx-19 Apx-20 Noise Measurement Field Data Project Name:Hilton Industrial Facility, City of Fontana Date: Project #: Noise Measurement #: Technician: Weather: Settings: SLOW FAST Temperature: 58 deg F Wind: 4 mph Humidity:64%Terrain: Start Time:3:13 PM End Time:3:28 PM Run Time: Leq:64.9 dB Traffic noise from 36 vehicles passing STNM4 microphone, travelling N-S along Lmax 79.7 dB Redwood Ave. Traffic noise from Foothill Blvd running E-W , 240' S of STNM4. L2 73.9 dB Bird song, leaf rustle fom 4mph breeze. Some residential ambiance. Distant L8 69.9 dB train horns. Overhead commercial airtraffic (Ontario Airport 9 miles WSW) L25 64.3 dB L50 59.3 dB NOISE METER: CALIBRATOR: MAKE: MAKE: MODEL: MODEL: SERIAL NUMBER: SERIAL NUMBER: FACTORY CALIBRATION DATE: FIELD CALIBRATION DATE: 7/10/20247/31/2024 11/20/2025 FACTORY CALIBRATION DATE: Larson Davis LXT1 3099 Larson Davis CAL 250 2723 Primary Noise Source: Secondary Noise Sources: Flat Site Description (Type of Existing Land Use and any other notable features): SoundTrack LXT Class 1 Overcast. Sunset: 4:43 PM Larson Davis CAL 250 Project Site: Western edge of N-S bound Redwood Ave ( no sidewalk ) outside residence 8080 Redwood Ave. Adjacent: Foothill Blvd running E-W, 240' S of STNM4. Mixture of businesse & older residences in area. November 20, 2025 Ian Edward Gallagher Nearest Address or Cross Street:8080 Redwood Avenue, Fontana, CA 92336 STNM4 Run Time 15 minutes 19866 Apx-21 Noise Measurement Field Data PHOTOS: STNM4 looking S towards Redwood Avenue & Foothill Boulevard ( traffic lights STNM4 looking NE across Redwood Avenue towards building 8047 Redwood 240' S ), residence 8080 Redwood Avenue, Fontana on the right.Avenue ( left ) & the remains ( demolished ) of what use to be residence 8055 Redwood Avenue, Fontana ( right ). Apx-22 Apx-23 Apx-24 Apx-25 Apx-26 GANDDINI GROUP INC. 714.795.3100 | ganddini.com APPENDIX D CALEEMOD DETAILED REPORT Hilton Warehouses Detailed Report, 7/30/2025 1 / 44 Hilton Warehouses Detailed Report Table of Contents 1. Basic Project Information 1.1. Basic Project Information 1.2. Land Use Types 1.3. User-Selected Emission Reduction Measures by Emissions Sector 2. Emissions Summary 2.1. Construction Emissions Compared Against Thresholds 2.2. Construction Emissions by Year, Unmitigated 2.4. Operations Emissions Compared Against Thresholds 2.5. Operations Emissions by Sector, Unmitigated 3. Construction Emissions Details 3.1. Site Preparation (2026) - Unmitigated 3.3. Grading (2026) - Unmitigated 3.5. Building Construction (2026) - Unmitigated 3.7. Building Construction (2027) - Unmitigated 3.9. Paving (2027) - Unmitigated Hilton Warehouses Detailed Report, 7/30/2025 2 / 44 3.11. Architectural Coating (2027) - Unmitigated 4. Operations Emissions Details 4.1. Mobile Emissions by Land Use 4.1.1. Unmitigated 4.2. Energy 4.2.1. Electricity Emissions By Land Use - Unmitigated 4.2.3. Natural Gas Emissions By Land Use - Unmitigated 4.3. Area Emissions by Source 4.3.1. Unmitigated 4.4. Water Emissions by Land Use 4.4.1. Unmitigated 4.5. Waste Emissions by Land Use 4.5.1. Unmitigated 4.6. Refrigerant Emissions by Land Use 4.6.1. Unmitigated 4.7. Offroad Emissions By Equipment Type 4.7.1. Unmitigated 4.8. Stationary Emissions By Equipment Type Hilton Warehouses Detailed Report, 7/30/2025 3 / 44 4.8.1. Unmitigated 4.9. User Defined Emissions By Equipment Type 4.9.1. Unmitigated 4.10. Soil Carbon Accumulation By Vegetation Type 4.10.1. Soil Carbon Accumulation By Vegetation Type - Unmitigated 4.10.2. Above and Belowground Carbon Accumulation by Land Use Type - Unmitigated 4.10.3. Avoided and Sequestered Emissions by Species - Unmitigated 5. Activity Data 5.1. Construction Schedule 5.2. Off-Road Equipment 5.2.1. Unmitigated 5.3. Construction Vehicles 5.3.1. Unmitigated 5.4. Vehicles 5.4.1. Construction Vehicle Control Strategies 5.5. Architectural Coatings 5.6. Dust Mitigation 5.6.1. Construction Earthmoving Activities Hilton Warehouses Detailed Report, 7/30/2025 4 / 44 5.6.2. Construction Earthmoving Control Strategies 5.7. Construction Paving 5.8. Construction Electricity Consumption and Emissions Factors 5.9. Operational Mobile Sources 5.9.1. Unmitigated 5.10. Operational Area Sources 5.10.1. Hearths 5.10.1.1. Unmitigated 5.10.2. Architectural Coatings 5.10.3. Landscape Equipment 5.11. Operational Energy Consumption 5.11.1. Unmitigated 5.12. Operational Water and Wastewater Consumption 5.12.1. Unmitigated 5.13. Operational Waste Generation 5.13.1. Unmitigated 5.14. Operational Refrigeration and Air Conditioning Equipment 5.14.1. Unmitigated Hilton Warehouses Detailed Report, 7/30/2025 5 / 44 5.15. Operational Off-Road Equipment 5.15.1. Unmitigated 5.16. Stationary Sources 5.16.1. Emergency Generators and Fire Pumps 5.16.2. Process Boilers 5.17. User Defined 5.18. Vegetation 5.18.1. Land Use Change 5.18.1.1. Unmitigated 5.18.1. Biomass Cover Type 5.18.1.1. Unmitigated 5.18.2. Sequestration 5.18.2.1. Unmitigated 6. Climate Risk Detailed Report 6.1. Climate Risk Summary 6.2. Initial Climate Risk Scores 6.3. Adjusted Climate Risk Scores 6.4. Climate Risk Reduction Measures Hilton Warehouses Detailed Report, 7/30/2025 6 / 44 7. Health and Equity Details 7.1. CalEnviroScreen 4.0 Scores 7.2. Healthy Places Index Scores 7.3. Overall Health & Equity Scores 7.4. Health & Equity Measures 7.5. Evaluation Scorecard 7.6. Health & Equity Custom Measures 8. User Changes to Default Data Hilton Warehouses Detailed Report, 7/30/2025 7 / 44 1. Basic Project Information 1.1. Basic Project Information Data Field Value Project Name Hilton Warehouses Construction Start Date 1/1/2026 Operational Year 2026 Lead Agency — Land Use Scale Project/site Analysis Level for Defaults County Windspeed (m/s)2.80 Precipitation (days)6.40 Location 34.10931147833928, -117.4809929555013 County San Bernardino-South Coast City Fontana Air District South Coast AQMD Air Basin South Coast TAZ 5304 EDFZ 10 Electric Utility Southern California Edison Gas Utility Southern California Gas App Version 2022.1.1.29 1.2. Land Use Types Land Use Subtype Size Unit Lot Acreage Building Area (sq ft)Landscape Area (sq ft) Special Landscape Area (sq ft) Population Description General Light Industry 73.5 1000sqft 4.00 73,550 19,560 ——— Hilton Warehouses Detailed Report, 7/30/2025 8 / 44 1.3. User-Selected Emission Reduction Measures by Emissions Sector No measures selected 2. Emissions Summary 2.1. Construction Emissions Compared Against Thresholds Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual) Un/Mit.TOG ROG NOx CO SO2 PM10E PM10D PM10T PM2.5E PM2.5D PM2.5T BCO2 NBCO2 CO2T CH4 N2O R CO2e Daily, Summer (Max) —————————————————— Unmit.1.46 1.21 10.4 15.4 0.03 0.38 0.51 0.89 0.35 0.12 0.48 —3,189 3,189 0.14 0.09 2.42 3,222 Daily, Winter (Max) —————————————————— Unmit.38.1 38.0 29.2 29.8 0.05 1.24 7.89 9.14 1.14 3.99 5.14 —5,519 5,519 0.22 0.09 0.06 5,540 Average Daily (Max) —————————————————— Unmit.1.94 1.93 7.17 10.1 0.02 0.27 0.49 0.75 0.25 0.16 0.41 —2,099 2,099 0.09 0.06 0.66 2,119 Annual (Max) —————————————————— Unmit.0.35 0.35 1.31 1.83 < 0.005 0.05 0.09 0.14 0.05 0.03 0.07 —347 347 0.01 0.01 0.11 351 2.2. Construction Emissions by Year, Unmitigated Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual) Year TOG ROG NOx CO SO2 PM10E PM10D PM10T PM2.5E PM2.5D PM2.5T BCO2 NBCO2 CO2T CH4 N2O R CO2e Daily - Summer (Max) —————————————————— 2026 1.46 1.21 10.4 15.4 0.03 0.38 0.51 0.89 0.35 0.12 0.48 —3,189 3,189 0.14 0.09 2.42 3,222 Hilton Warehouses Detailed Report, 7/30/2025 9 / 44 Daily - Winter (Max) —————————————————— 2026 3.82 3.21 29.2 29.8 0.05 1.24 7.89 9.14 1.14 3.99 5.14 —5,519 5,519 0.22 0.09 0.06 5,540 2027 38.1 38.0 9.91 14.7 0.03 0.34 0.51 0.85 0.32 0.12 0.44 —3,139 3,139 0.13 0.09 0.06 3,169 Average Daily —————————————————— 2026 1.00 0.83 7.17 10.1 0.02 0.27 0.49 0.75 0.25 0.16 0.41 —2,099 2,099 0.09 0.06 0.66 2,119 2027 1.94 1.93 0.48 0.76 < 0.005 0.02 0.02 0.04 0.02 0.01 0.02 —132 132 < 0.005 < 0.005 0.04 133 Annual —————————————————— 2026 0.18 0.15 1.31 1.83 < 0.005 0.05 0.09 0.14 0.05 0.03 0.07 —347 347 0.01 0.01 0.11 351 2027 0.35 0.35 0.09 0.14 < 0.005 < 0.005 < 0.005 0.01 < 0.005 < 0.005 < 0.005 —21.9 21.9 < 0.005 < 0.005 0.01 22.1 2.4. Operations Emissions Compared Against Thresholds Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual) Un/Mit.TOG ROG NOx CO SO2 PM10E PM10D PM10T PM2.5E PM2.5D PM2.5T BCO2 NBCO2 CO2T CH4 N2O R CO2e Daily, Summer (Max) —————————————————— Unmit.2.42 2.33 0.88 3.92 0.01 0.07 < 0.005 0.07 0.07 < 0.005 0.07 81.7 2,223 2,305 8.42 0.09 19.2 2,562 Daily, Winter (Max) —————————————————— Unmit.1.85 1.81 0.85 0.72 0.01 0.06 < 0.005 0.07 0.06 < 0.005 0.07 81.7 2,210 2,292 8.42 0.09 19.1 2,548 Average Daily (Max) —————————————————— Unmit.2.24 2.17 0.87 2.91 0.01 0.07 < 0.005 0.07 0.07 < 0.005 0.07 81.7 2,219 2,301 8.42 0.09 19.2 2,558 Annual (Max) —————————————————— Unmit.0.41 0.40 0.16 0.53 < 0.005 0.01 < 0.005 0.01 0.01 < 0.005 0.01 13.5 367 381 1.39 0.02 3.17 423 Hilton Warehouses Detailed Report, 7/30/2025 10 / 44 2.5. Operations Emissions by Sector, Unmitigated Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual) Sector TOG ROG NOx CO SO2 PM10E PM10D PM10T PM2.5E PM2.5D PM2.5T BCO2 NBCO2 CO2T CH4 N2O R CO2e Daily, Summer (Max) —————————————————— Mobile < 0.005 < 0.005 < 0.005 0.01 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 —5.61 5.61 < 0.005 < 0.005 0.03 5.82 Area 2.33 2.29 0.03 3.20 < 0.005 0.01 —0.01 < 0.005 —< 0.005 —13.2 13.2 < 0.005 < 0.005 —13.2 Energy 0.09 0.05 0.85 0.71 0.01 0.06 —0.06 0.06 —0.06 —2,033 2,033 0.15 0.01 —2,040 Water ———————————32.6 171 204 3.35 0.08 —312 Waste ———————————49.2 0.00 49.2 4.91 0.00 —172 Refrig.————————————————19.1 19.1 Total 2.42 2.33 0.88 3.92 0.01 0.07 < 0.005 0.07 0.07 < 0.005 0.07 81.7 2,223 2,305 8.42 0.09 19.2 2,562 Daily, Winter (Max) —————————————————— Mobile < 0.005 < 0.005 < 0.005 0.01 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 —5.54 5.54 < 0.005 < 0.005 < 0.005 5.73 Area 1.76 1.76 ———————————————— Energy 0.09 0.05 0.85 0.71 0.01 0.06 —0.06 0.06 —0.06 —2,033 2,033 0.15 0.01 —2,040 Water ———————————32.6 171 204 3.35 0.08 —312 Waste ———————————49.2 0.00 49.2 4.91 0.00 —172 Refrig.————————————————19.1 19.1 Total 1.85 1.81 0.85 0.72 0.01 0.06 < 0.005 0.07 0.06 < 0.005 0.07 81.7 2,210 2,292 8.42 0.09 19.1 2,548 Average Daily —————————————————— Mobile < 0.005 < 0.005 0.01 0.01 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 —5.55 5.55 < 0.005 < 0.005 0.01 5.75 Area 2.15 2.12 0.02 2.19 < 0.005 < 0.005 —< 0.005 < 0.005 —< 0.005 —9.01 9.01 < 0.005 < 0.005 —9.04 Energy 0.09 0.05 0.85 0.71 0.01 0.06 —0.06 0.06 —0.06 —2,033 2,033 0.15 0.01 —2,040 Water ———————————32.6 171 204 3.35 0.08 —312 Waste ———————————49.2 0.00 49.2 4.91 0.00 —172 Hilton Warehouses Detailed Report, 7/30/2025 11 / 44 Refrig.————————————————19.1 19.1 Total 2.24 2.17 0.87 2.91 0.01 0.07 < 0.005 0.07 0.07 < 0.005 0.07 81.7 2,219 2,301 8.42 0.09 19.2 2,558 Annual —————————————————— Mobile < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 —0.92 0.92 < 0.005 < 0.005 < 0.005 0.95 Area 0.39 0.39 < 0.005 0.40 < 0.005 < 0.005 —< 0.005 < 0.005 —< 0.005 —1.49 1.49 < 0.005 < 0.005 —1.50 Energy 0.02 0.01 0.15 0.13 < 0.005 0.01 —0.01 0.01 —0.01 —337 337 0.03 < 0.005 —338 Water ———————————5.40 28.3 33.7 0.56 0.01 —51.6 Waste ———————————8.14 0.00 8.14 0.81 0.00 —28.5 Refrig.————————————————3.17 3.17 Total 0.41 0.40 0.16 0.53 < 0.005 0.01 < 0.005 0.01 0.01 < 0.005 0.01 13.5 367 381 1.39 0.02 3.17 423 3. Construction Emissions Details 3.1. Site Preparation (2026) - Unmitigated Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual) Location TOG ROG NOx CO SO2 PM10E PM10D PM10T PM2.5E PM2.5D PM2.5T BCO2 NBCO2 CO2T CH4 N2O R CO2e Onsite —————————————————— Daily, Summer (Max) —————————————————— Daily, Winter (Max) —————————————————— Off-Roa d Equipm ent 3.74 3.14 29.2 28.8 0.05 1.24 —1.24 1.14 —1.14 —5,298 5,298 0.21 0.04 —5,316 Dust From Material Movement ——————7.67 7.67 —3.94 3.94 ——————— Hilton Warehouses Detailed Report, 7/30/2025 12 / 44 0.000.000.000.000.000.00—0.000.000.000.000.000.000.000.000.000.000.00Onsite truck Average Daily —————————————————— Off-Roa d Equipm ent 0.05 0.04 0.40 0.39 < 0.005 0.02 —0.02 0.02 —0.02 —72.6 72.6 < 0.005 < 0.005 —72.8 Dust From Material Movement ——————0.11 0.11 —0.05 0.05 ——————— Onsite truck 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 —0.00 0.00 0.00 0.00 0.00 0.00 Annual —————————————————— Off-Roa d Equipm ent 0.01 0.01 0.07 0.07 < 0.005 < 0.005 —< 0.005 < 0.005 —< 0.005 —12.0 12.0 < 0.005 < 0.005 —12.1 Dust From Material Movement ——————0.02 0.02 —0.01 0.01 ——————— Onsite truck 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 —0.00 0.00 0.00 0.00 0.00 0.00 Offsite —————————————————— Daily, Summer (Max) —————————————————— Daily, Winter (Max) —————————————————— Worker 0.08 0.07 0.08 0.95 0.00 0.00 0.23 0.23 0.00 0.05 0.05 —222 222 < 0.005 0.01 0.02 224 Vendor 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 —0.00 0.00 0.00 0.00 0.00 0.00 Hauling 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 —0.00 0.00 0.00 0.00 0.00 0.00 Hilton Warehouses Detailed Report, 7/30/2025 13 / 44 ——————————————————Average Daily Worker < 0.005 < 0.005 < 0.005 0.01 0.00 0.00 < 0.005 < 0.005 0.00 < 0.005 < 0.005 —3.08 3.08 < 0.005 < 0.005 < 0.005 3.12 Vendor 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 —0.00 0.00 0.00 0.00 0.00 0.00 Hauling 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 —0.00 0.00 0.00 0.00 0.00 0.00 Annual —————————————————— Worker < 0.005 < 0.005 < 0.005 < 0.005 0.00 0.00 < 0.005 < 0.005 0.00 < 0.005 < 0.005 —0.51 0.51 < 0.005 < 0.005 < 0.005 0.52 Vendor 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 —0.00 0.00 0.00 0.00 0.00 0.00 Hauling 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 —0.00 0.00 0.00 0.00 0.00 0.00 3.3. Grading (2026) - Unmitigated Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual) Location TOG ROG NOx CO SO2 PM10E PM10D PM10T PM2.5E PM2.5D PM2.5T BCO2 NBCO2 CO2T CH4 N2O R CO2e Onsite —————————————————— Daily, Summer (Max) —————————————————— Daily, Winter (Max) —————————————————— Off-Roa d Equipm ent 1.96 1.65 15.0 17.4 0.03 0.65 —0.65 0.59 —0.59 —2,960 2,960 0.12 0.02 —2,970 Dust From Material Movement ——————2.76 2.76 —1.34 1.34 ——————— Onsite truck 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 —0.00 0.00 0.00 0.00 0.00 0.00 Average Daily —————————————————— Hilton Warehouses Detailed Report, 7/30/2025 14 / 44 65.1—< 0.005< 0.00564.964.9—0.01—0.010.01—0.01< 0.0050.380.330.040.04Off-Roa d Dust From Material Movement ——————0.06 0.06 —0.03 0.03 ——————— Onsite truck 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 —0.00 0.00 0.00 0.00 0.00 0.00 Annual —————————————————— Off-Roa d Equipm ent 0.01 0.01 0.06 0.07 < 0.005 < 0.005 —< 0.005 < 0.005 —< 0.005 —10.7 10.7 < 0.005 < 0.005 —10.8 Dust From Material Movement ——————0.01 0.01 —0.01 0.01 ——————— Onsite truck 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 —0.00 0.00 0.00 0.00 0.00 0.00 Offsite —————————————————— Daily, Summer (Max) —————————————————— Daily, Winter (Max) —————————————————— Worker 0.07 0.06 0.07 0.82 0.00 0.00 0.20 0.20 0.00 0.05 0.05 —190 190 < 0.005 0.01 0.02 192 Vendor 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 —0.00 0.00 0.00 0.00 0.00 0.00 Hauling 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 —0.00 0.00 0.00 0.00 0.00 0.00 Average Daily —————————————————— Worker < 0.005 < 0.005 < 0.005 0.02 0.00 0.00 < 0.005 < 0.005 0.00 < 0.005 < 0.005 —4.22 4.22 < 0.005 < 0.005 0.01 4.28 Vendor 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 —0.00 0.00 0.00 0.00 0.00 0.00 Hauling 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 —0.00 0.00 0.00 0.00 0.00 0.00 Annual —————————————————— Hilton Warehouses Detailed Report, 7/30/2025 15 / 44 Worker < 0.005 < 0.005 < 0.005 < 0.005 0.00 0.00 < 0.005 < 0.005 0.00 < 0.005 < 0.005 —0.70 0.70 < 0.005 < 0.005 < 0.005 0.71 Vendor 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 —0.00 0.00 0.00 0.00 0.00 0.00 Hauling 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 —0.00 0.00 0.00 0.00 0.00 0.00 3.5. Building Construction (2026) - Unmitigated Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual) Location TOG ROG NOx CO SO2 PM10E PM10D PM10T PM2.5E PM2.5D PM2.5T BCO2 NBCO2 CO2T CH4 N2O R CO2e Onsite —————————————————— Daily, Summer (Max) —————————————————— Off-Roa d Equipm ent 1.28 1.07 9.85 13.0 0.02 0.38 —0.38 0.35 —0.35 —2,397 2,397 0.10 0.02 —2,405 Onsite truck 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 —0.00 0.00 0.00 0.00 0.00 0.00 Daily, Winter (Max) —————————————————— Off-Roa d Equipm ent 1.28 1.07 9.85 13.0 0.02 0.38 —0.38 0.35 —0.35 —2,397 2,397 0.10 0.02 —2,405 Onsite truck 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 —0.00 0.00 0.00 0.00 0.00 0.00 Average Daily —————————————————— Off-Roa d Equipm ent 0.79 0.66 6.09 8.02 0.01 0.23 —0.23 0.22 —0.22 —1,482 1,482 0.06 0.01 —1,488 Onsite truck 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 —0.00 0.00 0.00 0.00 0.00 0.00 Hilton Warehouses Detailed Report, 7/30/2025 16 / 44 Annual —————————————————— Off-Roa d Equipm ent 0.14 0.12 1.11 1.46 < 0.005 0.04 —0.04 0.04 —0.04 —245 245 0.01 < 0.005 —246 Onsite truck 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 —0.00 0.00 0.00 0.00 0.00 0.00 Offsite —————————————————— Daily, Summer (Max) —————————————————— Worker 0.15 0.13 0.12 2.22 0.00 0.00 0.40 0.40 0.00 0.09 0.09 —426 426 0.02 0.01 1.46 433 Vendor 0.04 0.01 0.40 0.21 < 0.005 0.01 0.10 0.11 0.01 0.03 0.03 —366 366 0.03 0.06 0.97 384 Hauling 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 —0.00 0.00 0.00 0.00 0.00 0.00 Daily, Winter (Max) —————————————————— Worker 0.14 0.12 0.14 1.68 0.00 0.00 0.40 0.40 0.00 0.09 0.09 —391 391 0.01 0.02 0.04 396 Vendor 0.04 0.01 0.41 0.22 < 0.005 0.01 0.10 0.11 0.01 0.03 0.03 —366 366 0.03 0.06 0.03 383 Hauling 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 —0.00 0.00 0.00 0.00 0.00 0.00 Average Daily —————————————————— Worker 0.09 0.08 0.09 1.09 0.00 0.00 0.25 0.25 0.00 0.06 0.06 —245 245 < 0.005 0.01 0.39 249 Vendor 0.02 < 0.005 0.26 0.13 < 0.005 < 0.005 0.06 0.07 < 0.005 0.02 0.02 —226 226 0.02 0.03 0.26 237 Hauling 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 —0.00 0.00 0.00 0.00 0.00 0.00 Annual —————————————————— Worker 0.02 0.01 0.02 0.20 0.00 0.00 0.05 0.05 0.00 0.01 0.01 —40.6 40.6 < 0.005 < 0.005 0.06 41.1 Vendor < 0.005 < 0.005 0.05 0.02 < 0.005 < 0.005 0.01 0.01 < 0.005 < 0.005 < 0.005 —37.4 37.4 < 0.005 0.01 0.04 39.3 Hauling 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 —0.00 0.00 0.00 0.00 0.00 0.00 3.7. Building Construction (2027) - Unmitigated Hilton Warehouses Detailed Report, 7/30/2025 17 / 44 Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual) Location TOG ROG NOx CO SO2 PM10E PM10D PM10T PM2.5E PM2.5D PM2.5T BCO2 NBCO2 CO2T CH4 N2O R CO2e Onsite —————————————————— Daily, Summer (Max) —————————————————— Daily, Winter (Max) —————————————————— Off-Roa d Equipm ent 1.23 1.03 9.39 12.9 0.02 0.34 —0.34 0.31 —0.31 —2,397 2,397 0.10 0.02 —2,405 Onsite truck 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 —0.00 0.00 0.00 0.00 0.00 0.00 Average Daily —————————————————— Off-Roa d Equipm ent 0.02 0.01 0.13 0.18 < 0.005 < 0.005 —< 0.005 < 0.005 —< 0.005 —32.8 32.8 < 0.005 < 0.005 —32.9 Onsite truck 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 —0.00 0.00 0.00 0.00 0.00 0.00 Annual —————————————————— Off-Roa d Equipm ent < 0.005 < 0.005 0.02 0.03 < 0.005 < 0.005 —< 0.005 < 0.005 —< 0.005 —5.44 5.44 < 0.005 < 0.005 —5.46 Onsite truck 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 —0.00 0.00 0.00 0.00 0.00 0.00 Offsite —————————————————— Daily, Summer (Max) —————————————————— Hilton Warehouses Detailed Report, 7/30/2025 18 / 44 ——————————————————Daily, Winter (Max) Worker 0.13 0.12 0.12 1.56 0.00 0.00 0.40 0.40 0.00 0.09 0.09 —383 383 0.01 0.01 0.03 388 Vendor 0.03 0.01 0.40 0.21 < 0.005 0.01 0.10 0.11 0.01 0.03 0.03 —359 359 0.03 0.05 0.02 376 Hauling 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 —0.00 0.00 0.00 0.00 0.00 0.00 Average Daily —————————————————— Worker < 0.005 < 0.005 < 0.005 0.02 0.00 0.00 0.01 0.01 0.00 < 0.005 < 0.005 —5.32 5.32 < 0.005 < 0.005 0.01 5.39 Vendor < 0.005 < 0.005 0.01 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 —4.92 4.92 < 0.005 < 0.005 0.01 5.15 Hauling 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 —0.00 0.00 0.00 0.00 0.00 0.00 Annual —————————————————— Worker < 0.005 < 0.005 < 0.005 < 0.005 0.00 0.00 < 0.005 < 0.005 0.00 < 0.005 < 0.005 —0.88 0.88 < 0.005 < 0.005 < 0.005 0.89 Vendor < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 —0.81 0.81 < 0.005 < 0.005 < 0.005 0.85 Hauling 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 —0.00 0.00 0.00 0.00 0.00 0.00 3.9. Paving (2027) - Unmitigated Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual) Location TOG ROG NOx CO SO2 PM10E PM10D PM10T PM2.5E PM2.5D PM2.5T BCO2 NBCO2 CO2T CH4 N2O R CO2e Onsite —————————————————— Daily, Summer (Max) —————————————————— Daily, Winter (Max) —————————————————— Off-Roa d Equipm ent 0.79 0.66 6.09 8.83 0.01 0.24 —0.24 0.22 —0.22 —1,350 1,350 0.05 0.01 —1,355 Paving 0.00 0.00 ———————————————— Hilton Warehouses Detailed Report, 7/30/2025 19 / 44 0.000.000.000.000.000.00—0.000.000.000.000.000.000.000.000.000.000.00Onsite truck Average Daily —————————————————— Off-Roa d Equipm ent 0.04 0.03 0.30 0.44 < 0.005 0.01 —0.01 0.01 —0.01 —66.6 66.6 < 0.005 < 0.005 —66.8 Paving 0.00 0.00 ———————————————— Onsite truck 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 —0.00 0.00 0.00 0.00 0.00 0.00 Annual —————————————————— Off-Roa d Equipm ent 0.01 0.01 0.05 0.08 < 0.005 < 0.005 —< 0.005 < 0.005 —< 0.005 —11.0 11.0 < 0.005 < 0.005 —11.1 Paving 0.00 0.00 ———————————————— Onsite truck 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 —0.00 0.00 0.00 0.00 0.00 0.00 Offsite —————————————————— Daily, Summer (Max) —————————————————— Daily, Winter (Max) —————————————————— Worker 0.09 0.08 0.08 1.01 0.00 0.00 0.26 0.26 0.00 0.06 0.06 —248 248 < 0.005 0.01 0.02 251 Vendor 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 —0.00 0.00 0.00 0.00 0.00 0.00 Hauling 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 —0.00 0.00 0.00 0.00 0.00 0.00 Average Daily —————————————————— Worker < 0.005 < 0.005 < 0.005 0.05 0.00 0.00 0.01 0.01 0.00 < 0.005 < 0.005 —12.4 12.4 < 0.005 < 0.005 0.02 12.6 Vendor 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 —0.00 0.00 0.00 0.00 0.00 0.00 Hauling 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 —0.00 0.00 0.00 0.00 0.00 0.00 Hilton Warehouses Detailed Report, 7/30/2025 20 / 44 Annual —————————————————— Worker < 0.005 < 0.005 < 0.005 0.01 0.00 0.00 < 0.005 < 0.005 0.00 < 0.005 < 0.005 —2.05 2.05 < 0.005 < 0.005 < 0.005 2.08 Vendor 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 —0.00 0.00 0.00 0.00 0.00 0.00 Hauling 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 —0.00 0.00 0.00 0.00 0.00 0.00 3.11. Architectural Coating (2027) - Unmitigated Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual) Location TOG ROG NOx CO SO2 PM10E PM10D PM10T PM2.5E PM2.5D PM2.5T BCO2 NBCO2 CO2T CH4 N2O R CO2e Onsite —————————————————— Daily, Summer (Max) —————————————————— Daily, Winter (Max) —————————————————— Off-Roa d Equipm ent 0.14 0.11 0.83 1.13 < 0.005 0.02 —0.02 0.02 —0.02 —134 134 0.01 < 0.005 —134 Architect ural Coating s 37.9 37.9 ———————————————— Onsite truck 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 —0.00 0.00 0.00 0.00 0.00 0.00 Average Daily —————————————————— Off-Roa d Equipm ent 0.01 0.01 0.04 0.06 < 0.005 < 0.005 —< 0.005 < 0.005 —< 0.005 —6.58 6.58 < 0.005 < 0.005 —6.61 Architect ural Coating s 1.87 1.87 ———————————————— Hilton Warehouses Detailed Report, 7/30/2025 21 / 44 Onsite truck 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 —0.00 0.00 0.00 0.00 0.00 0.00 Annual —————————————————— Off-Roa d Equipm ent < 0.005 < 0.005 0.01 0.01 < 0.005 < 0.005 —< 0.005 < 0.005 —< 0.005 —1.09 1.09 < 0.005 < 0.005 —1.09 Architect ural Coating s 0.34 0.34 ———————————————— Onsite truck 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 —0.00 0.00 0.00 0.00 0.00 0.00 Offsite —————————————————— Daily, Summer (Max) —————————————————— Daily, Winter (Max) —————————————————— Worker 0.03 0.02 0.02 0.31 0.00 0.00 0.08 0.08 0.00 0.02 0.02 —76.6 76.6 < 0.005 < 0.005 0.01 77.6 Vendor 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 —0.00 0.00 0.00 0.00 0.00 0.00 Hauling 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 —0.00 0.00 0.00 0.00 0.00 0.00 Average Daily —————————————————— Worker < 0.005 < 0.005 < 0.005 0.02 0.00 0.00 < 0.005 < 0.005 0.00 < 0.005 < 0.005 —3.83 3.83 < 0.005 < 0.005 0.01 3.88 Vendor 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 —0.00 0.00 0.00 0.00 0.00 0.00 Hauling 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 —0.00 0.00 0.00 0.00 0.00 0.00 Annual —————————————————— Worker < 0.005 < 0.005 < 0.005 < 0.005 0.00 0.00 < 0.005 < 0.005 0.00 < 0.005 < 0.005 —0.63 0.63 < 0.005 < 0.005 < 0.005 0.64 Vendor 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 —0.00 0.00 0.00 0.00 0.00 0.00 Hauling 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 —0.00 0.00 0.00 0.00 0.00 0.00 Hilton Warehouses Detailed Report, 7/30/2025 22 / 44 4. Operations Emissions Details 4.1. Mobile Emissions by Land Use 4.1.1. Unmitigated Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual) Land Use TOG ROG NOx CO SO2 PM10E PM10D PM10T PM2.5E PM2.5D PM2.5T BCO2 NBCO2 CO2T CH4 N2O R CO2e Daily, Summer (Max) —————————————————— General Light Industry < 0.005 < 0.005 < 0.005 0.01 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 —5.61 5.61 < 0.005 < 0.005 0.03 5.82 Total < 0.005 < 0.005 < 0.005 0.01 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 —5.61 5.61 < 0.005 < 0.005 0.03 5.82 Daily, Winter (Max) —————————————————— General Light Industry < 0.005 < 0.005 < 0.005 0.01 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 —5.54 5.54 < 0.005 < 0.005 < 0.005 5.73 Total < 0.005 < 0.005 < 0.005 0.01 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 —5.54 5.54 < 0.005 < 0.005 < 0.005 5.73 Annual —————————————————— General Light Industry < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 —0.92 0.92 < 0.005 < 0.005 < 0.005 0.95 Total < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 —0.92 0.92 < 0.005 < 0.005 < 0.005 0.95 4.2. Energy 4.2.1. Electricity Emissions By Land Use - Unmitigated Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual) Hilton Warehouses Detailed Report, 7/30/2025 23 / 44 Land Use TOG ROG NOx CO SO2 PM10E PM10D PM10T PM2.5E PM2.5D PM2.5T BCO2 NBCO2 CO2T CH4 N2O R CO2e Daily, Summer (Max) —————————————————— General Light Industry ————————————1,022 1,022 0.06 0.01 —1,026 Total ————————————1,022 1,022 0.06 0.01 —1,026 Daily, Winter (Max) —————————————————— General Light Industry ————————————1,022 1,022 0.06 0.01 —1,026 Total ————————————1,022 1,022 0.06 0.01 —1,026 Annual —————————————————— General Light Industry ————————————169 169 0.01 < 0.005 —170 Total ————————————169 169 0.01 < 0.005 —170 4.2.3. Natural Gas Emissions By Land Use - Unmitigated Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual) Land Use TOG ROG NOx CO SO2 PM10E PM10D PM10T PM2.5E PM2.5D PM2.5T BCO2 NBCO2 CO2T CH4 N2O R CO2e Daily, Summer (Max) —————————————————— General Light Industry 0.09 0.05 0.85 0.71 0.01 0.06 —0.06 0.06 —0.06 —1,011 1,011 0.09 < 0.005 —1,014 Total 0.09 0.05 0.85 0.71 0.01 0.06 —0.06 0.06 —0.06 —1,011 1,011 0.09 < 0.005 —1,014 Hilton Warehouses Detailed Report, 7/30/2025 24 / 44 ——————————————————Daily, Winter (Max) General Light Industry 0.09 0.05 0.85 0.71 0.01 0.06 —0.06 0.06 —0.06 —1,011 1,011 0.09 < 0.005 —1,014 Total 0.09 0.05 0.85 0.71 0.01 0.06 —0.06 0.06 —0.06 —1,011 1,011 0.09 < 0.005 —1,014 Annual —————————————————— General Light Industry 0.02 0.01 0.15 0.13 < 0.005 0.01 —0.01 0.01 —0.01 —167 167 0.01 < 0.005 —168 Total 0.02 0.01 0.15 0.13 < 0.005 0.01 —0.01 0.01 —0.01 —167 167 0.01 < 0.005 —168 4.3. Area Emissions by Source 4.3.1. Unmitigated Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual) Source TOG ROG NOx CO SO2 PM10E PM10D PM10T PM2.5E PM2.5D PM2.5T BCO2 NBCO2 CO2T CH4 N2O R CO2e Daily, Summer (Max) —————————————————— Consum er Product s 1.57 1.57 ———————————————— Architect ural Coating s 0.19 0.19 ———————————————— Landsca pe Equipm ent 0.57 0.53 0.03 3.20 < 0.005 0.01 —0.01 < 0.005 —< 0.005 —13.2 13.2 < 0.005 < 0.005 —13.2 Total 2.33 2.29 0.03 3.20 < 0.005 0.01 —0.01 < 0.005 —< 0.005 —13.2 13.2 < 0.005 < 0.005 —13.2 Hilton Warehouses Detailed Report, 7/30/2025 25 / 44 ——————————————————Daily, Winter (Max) Consum er Product s 1.57 1.57 ———————————————— Architect ural Coating s 0.19 0.19 ———————————————— Total 1.76 1.76 ———————————————— Annual —————————————————— Consum er Product s 0.29 0.29 ———————————————— Architect ural Coating s 0.03 0.03 ———————————————— Landsca pe Equipm ent 0.07 0.07 < 0.005 0.40 < 0.005 < 0.005 —< 0.005 < 0.005 —< 0.005 —1.49 1.49 < 0.005 < 0.005 —1.50 Total 0.39 0.39 < 0.005 0.40 < 0.005 < 0.005 —< 0.005 < 0.005 —< 0.005 —1.49 1.49 < 0.005 < 0.005 —1.50 4.4. Water Emissions by Land Use 4.4.1. Unmitigated Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual) Land Use TOG ROG NOx CO SO2 PM10E PM10D PM10T PM2.5E PM2.5D PM2.5T BCO2 NBCO2 CO2T CH4 N2O R CO2e Daily, Summer (Max) —————————————————— Hilton Warehouses Detailed Report, 7/30/2025 26 / 44 General Light Industry ———————————32.6 171 204 3.35 0.08 —312 Total ———————————32.6 171 204 3.35 0.08 —312 Daily, Winter (Max) —————————————————— General Light Industry ———————————32.6 171 204 3.35 0.08 —312 Total ———————————32.6 171 204 3.35 0.08 —312 Annual —————————————————— General Light Industry ———————————5.40 28.3 33.7 0.56 0.01 —51.6 Total ———————————5.40 28.3 33.7 0.56 0.01 —51.6 4.5. Waste Emissions by Land Use 4.5.1. Unmitigated Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual) Land Use TOG ROG NOx CO SO2 PM10E PM10D PM10T PM2.5E PM2.5D PM2.5T BCO2 NBCO2 CO2T CH4 N2O R CO2e Daily, Summer (Max) —————————————————— General Light Industry ———————————49.2 0.00 49.2 4.91 0.00 —172 Total ———————————49.2 0.00 49.2 4.91 0.00 —172 Daily, Winter (Max) —————————————————— Hilton Warehouses Detailed Report, 7/30/2025 27 / 44 172—0.004.9149.20.0049.2———————————General Light Industry Total ———————————49.2 0.00 49.2 4.91 0.00 —172 Annual —————————————————— General Light Industry ———————————8.14 0.00 8.14 0.81 0.00 —28.5 Total ———————————8.14 0.00 8.14 0.81 0.00 —28.5 4.6. Refrigerant Emissions by Land Use 4.6.1. Unmitigated Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual) Land Use TOG ROG NOx CO SO2 PM10E PM10D PM10T PM2.5E PM2.5D PM2.5T BCO2 NBCO2 CO2T CH4 N2O R CO2e Daily, Summer (Max) —————————————————— General Light Industry ————————————————19.1 19.1 Total ————————————————19.1 19.1 Daily, Winter (Max) —————————————————— General Light Industry ————————————————19.1 19.1 Total ————————————————19.1 19.1 Annual —————————————————— General Light Industry ————————————————3.17 3.17 Hilton Warehouses Detailed Report, 7/30/2025 28 / 44 Total ————————————————3.17 3.17 4.7. Offroad Emissions By Equipment Type 4.7.1. Unmitigated Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual) Equipm ent Type TOG ROG NOx CO SO2 PM10E PM10D PM10T PM2.5E PM2.5D PM2.5T BCO2 NBCO2 CO2T CH4 N2O R CO2e Daily, Summer (Max) —————————————————— Total —————————————————— Daily, Winter (Max) —————————————————— Total —————————————————— Annual —————————————————— Total —————————————————— 4.8. Stationary Emissions By Equipment Type 4.8.1. Unmitigated Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual) Equipm ent Type TOG ROG NOx CO SO2 PM10E PM10D PM10T PM2.5E PM2.5D PM2.5T BCO2 NBCO2 CO2T CH4 N2O R CO2e Daily, Summer (Max) —————————————————— Total —————————————————— Hilton Warehouses Detailed Report, 7/30/2025 29 / 44 ——————————————————Daily, Winter (Max) Total —————————————————— Annual —————————————————— Total —————————————————— 4.9. User Defined Emissions By Equipment Type 4.9.1. Unmitigated Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual) Equipm ent Type TOG ROG NOx CO SO2 PM10E PM10D PM10T PM2.5E PM2.5D PM2.5T BCO2 NBCO2 CO2T CH4 N2O R CO2e Daily, Summer (Max) —————————————————— Total —————————————————— Daily, Winter (Max) —————————————————— Total —————————————————— Annual —————————————————— Total —————————————————— 4.10. Soil Carbon Accumulation By Vegetation Type 4.10.1. Soil Carbon Accumulation By Vegetation Type - Unmitigated Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual) Vegetati on TOG ROG NOx CO SO2 PM10E PM10D PM10T PM2.5E PM2.5D PM2.5T BCO2 NBCO2 CO2T CH4 N2O R CO2e Hilton Warehouses Detailed Report, 7/30/2025 30 / 44 ——————————————————Daily, Summer (Max) Total —————————————————— Daily, Winter (Max) —————————————————— Total —————————————————— Annual —————————————————— Total —————————————————— 4.10.2. Above and Belowground Carbon Accumulation by Land Use Type - Unmitigated Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual) Land Use TOG ROG NOx CO SO2 PM10E PM10D PM10T PM2.5E PM2.5D PM2.5T BCO2 NBCO2 CO2T CH4 N2O R CO2e Daily, Summer (Max) —————————————————— Total —————————————————— Daily, Winter (Max) —————————————————— Total —————————————————— Annual —————————————————— Total —————————————————— 4.10.3. Avoided and Sequestered Emissions by Species - Unmitigated Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual) Species TOG ROG NOx CO SO2 PM10E PM10D PM10T PM2.5E PM2.5D PM2.5T BCO2 NBCO2 CO2T CH4 N2O R CO2e Daily, Summer (Max) —————————————————— Hilton Warehouses Detailed Report, 7/30/2025 31 / 44 Avoided —————————————————— Subtotal —————————————————— Sequest ered —————————————————— Subtotal —————————————————— Remove d —————————————————— Subtotal —————————————————— ——————————————————— Daily, Winter (Max) —————————————————— Avoided —————————————————— Subtotal —————————————————— Sequest ered —————————————————— Subtotal —————————————————— Remove d —————————————————— Subtotal —————————————————— ——————————————————— Annual —————————————————— Avoided —————————————————— Subtotal —————————————————— Sequest ered —————————————————— Subtotal —————————————————— Remove d —————————————————— Subtotal —————————————————— ——————————————————— Hilton Warehouses Detailed Report, 7/30/2025 32 / 44 5. Activity Data 5.1. Construction Schedule Phase Name Phase Type Start Date End Date Days Per Week Work Days per Phase Phase Description Site Preparation Site Preparation 1/30/2026 2/6/2026 5.00 5.00 — Grading Grading 2/7/2026 2/18/2026 5.00 8.00 — Building Construction Building Construction 2/19/2026 1/7/2027 5.00 230 — Paving Paving 1/8/2027 2/2/2027 5.00 18.0 — Architectural Coating Architectural Coating 2/3/2027 2/28/2027 5.00 18.0 — 5.2. Off-Road Equipment 5.2.1. Unmitigated Phase Name Equipment Type Fuel Type Engine Tier Number per Day Hours Per Day Horsepower Load Factor Site Preparation Rubber Tired Dozers Diesel Average 3.00 8.00 367 0.40 Site Preparation Tractors/Loaders/Back hoes Diesel Average 4.00 8.00 84.0 0.37 Grading Excavators Diesel Average 1.00 8.00 36.0 0.38 Grading Graders Diesel Average 1.00 8.00 148 0.41 Grading Rubber Tired Dozers Diesel Average 1.00 8.00 367 0.40 Grading Tractors/Loaders/Back hoes Diesel Average 3.00 8.00 84.0 0.37 Building Construction Cranes Diesel Average 1.00 7.00 367 0.29 Building Construction Forklifts Diesel Average 3.00 8.00 82.0 0.20 Building Construction Generator Sets Diesel Average 1.00 8.00 14.0 0.74 Building Construction Tractors/Loaders/Back hoes Diesel Average 3.00 7.00 84.0 0.37 Building Construction Welders Diesel Average 1.00 8.00 46.0 0.45 Hilton Warehouses Detailed Report, 7/30/2025 33 / 44 0.5610.06.002.00AverageDieselPavingCement and Mortar Mixers Paving Pavers Diesel Average 1.00 8.00 81.0 0.42 Paving Paving Equipment Diesel Average 2.00 6.00 89.0 0.36 Paving Rollers Diesel Average 2.00 6.00 36.0 0.38 Paving Tractors/Loaders/Back hoes Diesel Average 1.00 8.00 84.0 0.37 Architectural Coating Air Compressors Diesel Average 1.00 6.00 37.0 0.48 5.3. Construction Vehicles 5.3.1. Unmitigated Phase Name Trip Type One-Way Trips per Day Miles per Trip Vehicle Mix Site Preparation ———— Site Preparation Worker 17.5 18.5 LDA,LDT1,LDT2 Site Preparation Vendor —10.2 HHDT,MHDT Site Preparation Hauling 0.00 20.0 HHDT Site Preparation Onsite truck ——HHDT Grading ———— Grading Worker 15.0 18.5 LDA,LDT1,LDT2 Grading Vendor —10.2 HHDT,MHDT Grading Hauling 0.00 20.0 HHDT Grading Onsite truck ——HHDT Building Construction ———— Building Construction Worker 30.9 18.5 LDA,LDT1,LDT2 Building Construction Vendor 12.1 10.2 HHDT,MHDT Building Construction Hauling 0.00 20.0 HHDT Building Construction Onsite truck ——HHDT Paving ———— Hilton Warehouses Detailed Report, 7/30/2025 34 / 44 Paving Worker 20.0 18.5 LDA,LDT1,LDT2 Paving Vendor —10.2 HHDT,MHDT Paving Hauling 0.00 20.0 HHDT Paving Onsite truck ——HHDT Architectural Coating ———— Architectural Coating Worker 6.18 18.5 LDA,LDT1,LDT2 Architectural Coating Vendor —10.2 HHDT,MHDT Architectural Coating Hauling 0.00 20.0 HHDT Architectural Coating Onsite truck ——HHDT 5.4. Vehicles 5.4.1. Construction Vehicle Control Strategies Non-applicable. No control strategies activated by user. 5.5. Architectural Coatings Phase Name Residential Interior Area Coated (sq ft) Residential Exterior Area Coated (sq ft) Non-Residential Interior Area Coated (sq ft) Non-Residential Exterior Area Coated (sq ft) Parking Area Coated (sq ft) Architectural Coating 0.00 0.00 110,325 36,775 — 5.6. Dust Mitigation 5.6.1. Construction Earthmoving Activities Phase Name Material Imported (cy)Material Exported (cy)Acres Graded (acres)Material Demolished (sq. ft.)Acres Paved (acres) Site Preparation ——7.50 0.00 — Grading ——8.00 0.00 — Paving 0.00 0.00 0.00 0.00 0.00 5.6.2. Construction Earthmoving Control Strategies Hilton Warehouses Detailed Report, 7/30/2025 35 / 44 Control Strategies Applied Frequency (per day)PM10 Reduction PM2.5 Reduction Water Exposed Area 2 61%61% 5.7. Construction Paving Land Use Area Paved (acres)% Asphalt General Light Industry 0.00 0% 5.8. Construction Electricity Consumption and Emissions Factors kWh per Year and Emission Factor (lb/MWh) Year kWh per Year CO2 CH4 N2O 2026 0.00 532 0.03 < 0.005 2027 0.00 532 0.03 < 0.005 5.9. Operational Mobile Sources 5.9.1. Unmitigated Land Use Type Trips/Weekday Trips/Saturday Trips/Sunday Trips/Year VMT/Weekday VMT/Saturday VMT/Sunday VMT/Year General Light Industry 128 128 128 46,685 1,714 1,714 1,714 625,486 5.10. Operational Area Sources 5.10.1. Hearths 5.10.1.1. Unmitigated 5.10.2. Architectural Coatings Residential Interior Area Coated (sq ft) Residential Exterior Area Coated (sq ft) Non-Residential Interior Area Coated (sq ft) Non-Residential Exterior Area Coated (sq ft) Parking Area Coated (sq ft) Hilton Warehouses Detailed Report, 7/30/2025 36 / 44 0 0.00 110,325 36,775 — 5.10.3. Landscape Equipment Season Unit Value Snow Days day/yr 0.00 Summer Days day/yr 250 5.11. Operational Energy Consumption 5.11.1. Unmitigated Electricity (kWh/yr) and CO2 and CH4 and N2O and Natural Gas (kBTU/yr) Land Use Electricity (kWh/yr)CO2 CH4 N2O Natural Gas (kBTU/yr) General Light Industry 701,500 532 0.0330 0.0040 3,154,274 5.12. Operational Water and Wastewater Consumption 5.12.1. Unmitigated Land Use Indoor Water (gal/year)Outdoor Water (gal/year) General Light Industry 17,008,438 314,116 5.13. Operational Waste Generation 5.13.1. Unmitigated Land Use Waste (ton/year)Cogeneration (kWh/year) General Light Industry 91.2 — 5.14. Operational Refrigeration and Air Conditioning Equipment Hilton Warehouses Detailed Report, 7/30/2025 37 / 44 5.14.1. Unmitigated Land Use Type Equipment Type Refrigerant GWP Quantity (kg)Operations Leak Rate Service Leak Rate Times Serviced General Light Industry Other commercial A/C and heat pumps R-410A 2,088 0.30 4.00 4.00 18.0 5.15. Operational Off-Road Equipment 5.15.1. Unmitigated Equipment Type Fuel Type Engine Tier Number per Day Hours Per Day Horsepower Load Factor 5.16. Stationary Sources 5.16.1. Emergency Generators and Fire Pumps Equipment Type Fuel Type Number per Day Hours per Day Hours per Year Horsepower Load Factor 5.16.2. Process Boilers Equipment Type Fuel Type Number Boiler Rating (MMBtu/hr)Daily Heat Input (MMBtu/day)Annual Heat Input (MMBtu/yr) 5.17. User Defined Equipment Type Fuel Type 5.18. Vegetation 5.18.1. Land Use Change 5.18.1.1. Unmitigated Vegetation Land Use Type Vegetation Soil Type Initial Acres Final Acres Hilton Warehouses Detailed Report, 7/30/2025 38 / 44 5.18.1. Biomass Cover Type 5.18.1.1. Unmitigated Biomass Cover Type Initial Acres Final Acres 5.18.2. Sequestration 5.18.2.1. Unmitigated Tree Type Number Electricity Saved (kWh/year)Natural Gas Saved (btu/year) 6. Climate Risk Detailed Report 6.1. Climate Risk Summary Cal-Adapt midcentury 2040–2059 average projections for four hazards are reported below for your project location. These are under Representation Concentration Pathway (RCP) 8.5 which assumes GHG emissions will continue to rise strongly through 2050 and then plateau around 2100. Climate Hazard Result for Project Location Unit Temperature and Extreme Heat 21.7 annual days of extreme heat Extreme Precipitation 5.25 annual days with precipitation above 20 mm Sea Level Rise —meters of inundation depth Wildfire 0.00 annual hectares burned Temperature and Extreme Heat data are for grid cell in which your project are located. The projection is based on the 98th historical percentile of daily maximum/minimum temperatures from observed historical data (32 climate model ensemble from Cal-Adapt, 2040–2059 average under RCP 8.5). Each grid cell is 6 kilometers (km) by 6 km, or 3.7 miles (mi) by 3.7 mi. Extreme Precipitation data are for the grid cell in which your project are located. The threshold of 20 mm is equivalent to about ¾ an inch of rain, which would be light to moderate rainfall if received over a full day or heavy rain if received over a period of 2 to 4 hours. Each grid cell is 6 kilometers (km) by 6 km, or 3.7 miles (mi) by 3.7 mi. Sea Level Rise data are for the grid cell in which your project are located. The projections are from Radke et al. (2017), as reported in Cal-Adapt (Radke et al., 2017, CEC-500-2017-008), and consider inundation location and depth for the San Francisco Bay, the Sacramento-San Joaquin River Delta and California coast resulting different increments of sea level rise coupled with extreme storm events. Users may select from four scenarios to view the range in potential inundation depth for the grid cell. The four scenarios are: No rise, 0.5 meter, 1.0 meter, 1.41 meters Wildfire data are for the grid cell in which your project are located. The projections are from UC Davis, as reported in Cal-Adapt (2040–2059 average under RCP 8.5), and consider historical data of climate, vegetation, population density, and large (> 400 ha) fire history. Users may select from four model simulations to view the range in potential wildfire probabilities for the grid cell. The four simulations make different assumptions about expected rainfall and temperature are: Warmer/drier (HadGEM2-ES), Cooler/wetter (CNRM-CM5), Average conditions (CanESM2), Range of different rainfall and temperature possibilities (MIROC5). Each grid cell is 6 kilometers (km) by 6 km, or 3.7 miles (mi) by 3.7 mi. Hilton Warehouses Detailed Report, 7/30/2025 39 / 44 6.2. Initial Climate Risk Scores Climate Hazard Exposure Score Sensitivity Score Adaptive Capacity Score Vulnerability Score Temperature and Extreme Heat 2 0 0 N/A Extreme Precipitation N/A N/A N/A N/A Sea Level Rise 1 0 0 N/A Wildfire 1 0 0 N/A Flooding N/A N/A N/A N/A Drought N/A N/A N/A N/A Snowpack Reduction N/A N/A N/A N/A Air Quality Degradation 0 0 0 N/A The sensitivity score reflects the extent to which a project would be adversely affected by exposure to a climate hazard. Exposure is rated on a scale of 1 to 5, with a score of 5 representing the greatest exposure. The adaptive capacity of a project refers to its ability to manage and reduce vulnerabilities from projected climate hazards. Adaptive capacity is rated on a scale of 1 to 5, with a score of 5 representing the greatest ability to adapt. The overall vulnerability scores are calculated based on the potential impacts and adaptive capacity assessments for each hazard. Scores do not include implementation of climate risk reduction measures. 6.3. Adjusted Climate Risk Scores Climate Hazard Exposure Score Sensitivity Score Adaptive Capacity Score Vulnerability Score Temperature and Extreme Heat 2 1 1 3 Extreme Precipitation N/A N/A N/A N/A Sea Level Rise 1 1 1 2 Wildfire 1 1 1 2 Flooding N/A N/A N/A N/A Drought N/A N/A N/A N/A Snowpack Reduction N/A N/A N/A N/A Air Quality Degradation 1 1 1 2 The sensitivity score reflects the extent to which a project would be adversely affected by exposure to a climate hazard. Exposure is rated on a scale of 1 to 5, with a score of 5 representing the greatest exposure. Hilton Warehouses Detailed Report, 7/30/2025 40 / 44 The adaptive capacity of a project refers to its ability to manage and reduce vulnerabilities from projected climate hazards. Adaptive capacity is rated on a scale of 1 to 5, with a score of 5 representing the greatest ability to adapt. The overall vulnerability scores are calculated based on the potential impacts and adaptive capacity assessments for each hazard. Scores include implementation of climate risk reduction measures. 6.4. Climate Risk Reduction Measures 7. Health and Equity Details 7.1. CalEnviroScreen 4.0 Scores The maximum CalEnviroScreen score is 100. A high score (i.e., greater than 50) reflects a higher pollution burden compared to other census tracts in the state. Indicator Result for Project Census Tract Exposure Indicators — AQ-Ozone 97.0 AQ-PM 91.2 AQ-DPM 44.6 Drinking Water 66.7 Lead Risk Housing 17.7 Pesticides 0.00 Toxic Releases 70.1 Traffic 22.7 Effect Indicators — CleanUp Sites 0.00 Groundwater 0.00 Haz Waste Facilities/Generators 87.1 Impaired Water Bodies 0.00 Solid Waste 0.00 Sensitive Population — Asthma 35.5 Cardio-vascular 74.9 Low Birth Weights 90.0 Hilton Warehouses Detailed Report, 7/30/2025 41 / 44 Socioeconomic Factor Indicators — Education 67.1 Housing 32.3 Linguistic 42.1 Poverty 46.6 Unemployment 60.6 7.2. Healthy Places Index Scores The maximum Health Places Index score is 100. A high score (i.e., greater than 50) reflects healthier community conditions compared to other census tracts in the state. Indicator Result for Project Census Tract Economic — Above Poverty 73.87398948 Employed 66.08494803 Median HI 76.97934043 Education — Bachelor's or higher 33.61991531 High school enrollment 16.64314128 Preschool enrollment 6.954959579 Transportation — Auto Access 81.29090209 Active commuting 28.82073656 Social — 2-parent households 63.10791736 Voting 37.89298088 Neighborhood — Alcohol availability 69.81906839 Park access 24.90696779 Retail density 29.59065828 Hilton Warehouses Detailed Report, 7/30/2025 42 / 44 Supermarket access 48.50506865 Tree canopy 11.20236109 Housing — Homeownership 87.77107661 Housing habitability 74.22045425 Low-inc homeowner severe housing cost burden 66.09778006 Low-inc renter severe housing cost burden 33.49159502 Uncrowded housing 67.80443988 Health Outcomes — Insured adults 47.32452201 Arthritis 87.4 Asthma ER Admissions 59.8 High Blood Pressure 83.5 Cancer (excluding skin)80.0 Asthma 58.2 Coronary Heart Disease 90.3 Chronic Obstructive Pulmonary Disease 88.0 Diagnosed Diabetes 65.9 Life Expectancy at Birth 84.7 Cognitively Disabled 85.7 Physically Disabled 88.8 Heart Attack ER Admissions 27.3 Mental Health Not Good 56.0 Chronic Kidney Disease 79.8 Obesity 44.4 Pedestrian Injuries 39.5 Physical Health Not Good 65.0 Stroke 88.3 Hilton Warehouses Detailed Report, 7/30/2025 43 / 44 Health Risk Behaviors — Binge Drinking 15.4 Current Smoker 63.1 No Leisure Time for Physical Activity 61.9 Climate Change Exposures — Wildfire Risk 0.0 SLR Inundation Area 0.0 Children 45.9 Elderly 96.3 English Speaking 60.3 Foreign-born 41.2 Outdoor Workers 55.6 Climate Change Adaptive Capacity — Impervious Surface Cover 52.6 Traffic Density 33.7 Traffic Access 23.0 Other Indices — Hardship 49.3 Other Decision Support — 2016 Voting 49.9 7.3. Overall Health & Equity Scores Metric Result for Project Census Tract CalEnviroScreen 4.0 Score for Project Location (a)58.0 Healthy Places Index Score for Project Location (b)51.0 Project Located in a Designated Disadvantaged Community (Senate Bill 535)No Project Located in a Low-Income Community (Assembly Bill 1550)No Project Located in a Community Air Protection Program Community (Assembly Bill 617)No Hilton Warehouses Detailed Report, 7/30/2025 44 / 44 a: The maximum CalEnviroScreen score is 100. A high score (i.e., greater than 50) reflects a higher pollution burden compared to other census tracts in the state. b: The maximum Health Places Index score is 100. A high score (i.e., greater than 50) reflects healthier community conditions compared to other census tracts in the state. 7.4. Health & Equity Measures No Health & Equity Measures selected. 7.5. Evaluation Scorecard Health & Equity Evaluation Scorecard not completed. 7.6. Health & Equity Custom Measures No Health & Equity Custom Measures created. 8. User Changes to Default Data Screen Justification Land Use Per Site Plan Construction: Construction Phases Project Site is Vacant. Operations: Vehicle Data Per Project Traffic Memorandum Operations: Fleet Mix Project Traffic Memorandum, Table A:Project Trip Generation APPENDIX E HYDROLOGY STUDY Table of Contents Discussion……………………………………………………………………………………………………………………………………………1-2 Appendix A Thomas Guide Map Hydrologic Soils Group Map Rainfall Maps Fontana West End Venture Master Plan- Line K Hydrology Map Appendix B Rational Method Output (Pre-developed) Appendix C Rational Method Output (Post-Developed) Appendix D Unit Hydrographs (Post-Developed) Appendix E Outflow vs Volume Calcs Routing Calcs Appendix F Retention BMP Design from WQMP Soils Report Factor of Safety Worksheet Fontana West End Venture Master Plan- Line K Hydrology Map & Values Line K Master Plan Hydrology Calcs Discussion The purpose of this study is to determine the hydrology impacts to the existing downstream facilities and properties and to ensure that the design mitigates increased flows to the existing facilities. The study will verify flows to the downstream facilities and will also size infrastructure onsite to address stormwater quality design per the WQMP and show that the discharged flows to Hilton Drive are below the levels designed in the Master Plan Hydrology (“Master Hydrology for Fontana West End Venture Foothill Drains- Lines A, B, D, J, K”.) The project proposes to develop a 3.94-acre site located at Hilton Drive, Lot 2 tract 13643. in the city of Fontana. The site is bounded to the north, east and west by commercial developments, and to the south by the right-of-way of Hilton Drive Site soils are Hydrologic Soil Group “A.” In its existing condition, the project site is undeveloped. The project site sheets storm water flows in a southerly direction, discharging into the right-of-way of Hilton Drive. It does not accept storm water run-on from the adjacent properties. See the Pre-Developed Hydrology Map in Appendix B. There is an existing storm drain constructed in Hilton Drive identified as Line K as shown on “Master Hydrology for Fontana West End Venture Foothill Drains- Lines A, B, D, J, K”. This parcel is part of areas 991.1 & 991.2 totaling 14.0 acres. The project proposes to develop the site for commercial use. Proposed improvements consist of two warehouse buildings with loading docks, AC pavement, concrete hardscape, landscape, concrete curbs and gutters, two catch basin inlets, and a proposed underground infiltration system. The proposed development will be 87% impervious. The proposed site design will mimic the existing drainage patterns of the property, directing storm flows to the southerly boundary of the project site. Drainage Area A1 consists of the easterly portion of the project site Storm water sheets across proposed AC pavement and landscape to be intercepted by proposed concrete gutters. The gutters convey flows southerly to be intercepted by a proposed inlet located at the southeasterly corner of the project site. The inlet discharges flows into a proposed storm drain that conveys flows westerly and discharges into the proposed underground infiltration system located beneath the southeasterly parking area. Drainage area A2 consists of the westerly portion of the project site. Storm water sheets across proposed AC pavement and landscape to be intercepted by proposed curb gutters. The gutters convey flows southerly to be intercepted by a proposed inlet located at the southwesterly corner of the project site and discharges into an underground infiltration system. See the Post-Developed Hydrology Map in Appendix C. The proposed underground infiltration system has been designed to store the Design Capture Volume (DCV) for the project site, and to infiltrate it into the soil within 48 hours. The design is in accordance with the 2013 Technical Guidance Document for Water Quality Management Plans of San Bernardino County. See Appendix F for the design of the proposed underground infiltration system Rational Studies have been prepared for the pre-developed condition and post-developed condition using CivilCADD/CivilDESIGN software. The studies were prepared for the 2-year, 10-year, 25- year and 100-year storms. Per the County guidance for design of detention basins the pre-developed condition used 1-year rainfall rates for the 2-year storm, 5-year rainfall rates for the 10-year storm, 10- year rainfall rates for the 25-year storm and 25-year rainfall rates for the 100-year storm. Studies for the post-developed condition were prepared for the same storm intervals using 2-year, 10-year, 25-year and 100-year rainfall rates. This provides a conservative design for the sizing of the storage system per the County guidance. The pre-developed condition studies are shown in Appendix B; the post- developed condition studies are shown in Appendix C. Unit hydrographs were prepared for the 3-hour and 24-hour durations for the 2-year storm, 10- year storm, 25-year storm and 100 year storm. These hydrographs were used to prepare routing calculations to show the underground infiltration system provides enough storage to ensure the overflow discharge at the southeast corner of the site does not exceed the allowable rate per the Master Plan Hydrology study. See Appendix D for result. Appendix E includes the depth versus volume calculations for the storage and outflow rates of the underground infiltration system. The underground infiltration system consists of 8-foot diameter perforated CMP pipes, backfilled with washed rock (3/4” to 1-1/2” in diameter); said rock is wrapped with a non-woven filter fabric to prevent sediment from entering the voids of the pipe and to prevent erosion of the existing soil around the system. Details for this underground system are included in Appendix E. The storm flows start to fill the pipes and rock voids (assumed to be 40% of the overall volume). While the flows are filling the system, the flows will infiltrate into the soil at a rate of 0.41 cfs for the system. During larger storm events the system will fill and bubble out of the box inlets at the southeast corner of the site, flow through the proposed landscape plater and discharge into Cherry Avenue through a proposed underwalk drain. The routing calculations show the maximum post- developed discharge rate is below the flow that was tabled for this site per the Fontana West End Venture Master Plan Line K flows. See the table below showing the pre-developed flows, post- developed flows, allowable master plan flows and peak routed flows. Note that the time of concentration for the master plan flows is much higher than for the project site hydrology. This is a conservative approach, since the project site pflows would be less using the higher time of concentration. Drainage Area Area (Acres) Storm (Yr.) Q Pre (CFS) Q Post (CFS) Allowed Flow Master Plan (CFS) Peak – Routed Flow (CFS) 3-Hour 24 Hour A 3.98 2 1.21 2YR-Rain 4.96 Not Calc. 0.41 0.41 A 3.98 10 2.52 5YR-Rain 9.04 8.28 0.41 0.41 A 3.98 25 3.63 10YR-Rain 11.34 9.71 2.44 2.44 A 3.98 100 6.16 25 YR-Rain 14.89 12.46 11.25 11.25 CONCLUSION The underground infiltration system is designed to mitigate the increased runoff due to re- development of the site and also designed to meet the requirements per the County of San Bernardino WQMP Technical Guidance Document for treatment of the required storm volume. The WQMP Exhibit is included in Appendix F to show the design layout and cross-section of the underground infiltration system. It also shows the required volumes, as calculated in the WQMP for said project, and provided volumes. Capacity calculations for the systems are also included. The soils report including the infiltration rates are attached in Appendix F. The Factor of Safety Worksheet is included as well as drawdown calculations showing the system infiltrates within 48 hours. The drawdown time is 28.4 hours for the system which is well below the maximum 48 hour drawdown time. Routing calculations show the underground system allows for 0.41 cfs of infiltration. The 2- Year and 10-Year Storms will be contained within the underground infiltration system. The 25-Year and 100-Year storms will exceed the capacity of the underground infiltration system. Once the system is full and overflows the catch basin inlet at the southwest corner (lowest outlet) the flows will discharge through an underwalk drain to Hilton Drive. The discharge rate for the 25-Year storm is 2.44 cfs and the discharge rate for the 100-Year 24-Hour storm is 11.25 cfs. These rates are well below the allowed rates per the master plan hydrology for Line K, 9.71 cfs and 12.46cfs, respectively.           Appendix A                          8/16/23, 12:17 PM Precipitation Frequency Data Server https://hdsc.nws.noaa.gov/pfds/pfds_printpage.html?lat=34.1092&lon=-117.4808&data=intensity&units=english&series=pds 1/4 NOAA Atlas 14, Volume 6, Version 2 Location name: Fontana, California, USA* Latitude: 34.1092°, Longitude: -117.4808° Elevation: 1264 ft** * source: ESRI Maps ** source: USGS POINT PRECIPITATION FREQUENCY ESTIMATES Sanja Perica, Sarah Dietz, Sarah Heim, Lillian Hiner, Kazungu Maitaria, Deborah Martin, Sandra Pavlovic, Ishani Roy, Carl Trypaluk, Dale Unruh, Fenglin Yan, Michael Yekta, Tan Zhao, Geoffrey Bonnin, Daniel Brewer, Li-Chuan Chen, Tye Parzybok, John Yarchoan NOAA, National Weather Service, Silver Spring, Maryland PF_tabular | PF_graphical | Maps_&_aerials PF tabular PDS-based point precipitation frequency estimates with 90% confidence intervals (in inches/hour)1 Duration Average recurrence interval (years) 1 2 5 10 25 50 100 200 500 1000 5-min 1.39 (1.15‑1.68) 1.82 (1.52‑2.22) 2.41 (2.00‑2.94) 2.90 (2.39‑3.58) 3.60 (2.86‑4.57) 4.14 (3.22‑5.38) 4.70 (3.56‑6.28) 5.32 (3.91‑7.28) 6.16 (4.34‑8.82) 6.84 (4.66‑10.2) 10-min 0.996 (0.828‑1.21) 1.31 (1.09‑1.59) 1.73 (1.43‑2.11) 2.08 (1.72‑2.56) 2.57 (2.05‑3.28) 2.96 (2.31‑3.85) 3.37 (2.56‑4.49) 3.80 (2.80‑5.22) 4.42 (3.11‑6.32) 4.91 (3.34‑7.28) 15-min 0.804 (0.668‑0.972) 1.06 (0.880‑1.28) 1.40 (1.16‑1.70) 1.68 (1.38‑2.06) 2.08 (1.65‑2.64) 2.39 (1.86‑3.11) 2.72 (2.06‑3.62) 3.07 (2.26‑4.21) 3.56 (2.51‑5.10) 3.96 (2.69‑5.87) 30-min 0.592 (0.494‑0.718) 0.780 (0.648‑0.948) 1.03 (0.856‑1.26) 1.24 (1.02‑1.52) 1.53 (1.22‑1.95) 1.77 (1.37‑2.29) 2.01 (1.52‑2.68) 2.27 (1.67‑3.11) 2.63 (1.85‑3.76) 2.92 (1.99‑4.33) 60-min 0.437 (0.364‑0.530) 0.575 (0.479‑0.698) 0.760 (0.631‑0.926) 0.915 (0.753‑1.12) 1.13 (0.899‑1.44) 1.30 (1.01‑1.69) 1.48 (1.12‑1.97) 1.67 (1.23‑2.29) 1.94 (1.37‑2.78) 2.15 (1.47‑3.20) 2-hr 0.334 (0.278‑0.405) 0.434 (0.361‑0.528) 0.566 (0.470‑0.689) 0.674 (0.555‑0.828) 0.823 (0.654‑1.05) 0.938 (0.729‑1.22) 1.06 (0.801‑1.41) 1.18 (0.869‑1.62) 1.35 (0.953‑1.93) 1.49 (1.01‑2.21) 3-hr 0.286 (0.238‑0.347) 0.370 (0.308‑0.450) 0.480 (0.398‑0.585) 0.569 (0.468‑0.699) 0.690 (0.548‑0.877) 0.783 (0.609‑1.02) 0.878 (0.665‑1.17) 0.976 (0.718‑1.34) 1.11 (0.783‑1.59) 1.22 (0.828‑1.80) 6-hr 0.209 (0.174‑0.254) 0.270 (0.225‑0.328) 0.348 (0.289‑0.424) 0.411 (0.338‑0.505) 0.495 (0.393‑0.629) 0.558 (0.434‑0.725) 0.621 (0.471‑0.828) 0.686 (0.505‑0.941) 0.773 (0.545‑1.11) 0.840 (0.572‑1.24) 12-hr 0.140 (0.116‑0.169) 0.182 (0.151‑0.221) 0.235 (0.195‑0.286) 0.277 (0.228‑0.340) 0.331 (0.263‑0.421) 0.372 (0.289‑0.483) 0.411 (0.312‑0.548) 0.451 (0.332‑0.619) 0.504 (0.355‑0.721) 0.543 (0.370‑0.806) 24-hr 0.095 (0.084‑0.110) 0.126 (0.111‑0.145) 0.164 (0.144‑0.190) 0.194 (0.169‑0.226) 0.232 (0.196‑0.280) 0.260 (0.216‑0.320) 0.288 (0.233‑0.363) 0.315 (0.248‑0.408) 0.350 (0.265‑0.473) 0.376 (0.275‑0.526) 2-day 0.058 (0.051‑0.067) 0.078 (0.069‑0.090) 0.104 (0.092‑0.120) 0.125 (0.109‑0.145) 0.152 (0.128‑0.183) 0.172 (0.143‑0.212) 0.192 (0.155‑0.242) 0.212 (0.167‑0.275) 0.239 (0.181‑0.322) 0.259 (0.189‑0.362) 3-day 0.041 (0.036‑0.048) 0.057 (0.050‑0.066) 0.077 (0.068‑0.089) 0.093 (0.082‑0.109) 0.115 (0.097‑0.139) 0.132 (0.109‑0.162) 0.149 (0.120‑0.187) 0.166 (0.131‑0.215) 0.189 (0.143‑0.255) 0.207 (0.151‑0.289) 4-day 0.033 (0.029‑0.038) 0.046 (0.041‑0.054) 0.063 (0.056‑0.074) 0.077 (0.068‑0.090) 0.096 (0.082‑0.116) 0.111 (0.092‑0.137) 0.126 (0.102‑0.159) 0.141 (0.111‑0.183) 0.162 (0.122‑0.218) 0.178 (0.130‑0.249) 7-day 0.022 (0.019‑0.025) 0.031 (0.027‑0.035) 0.042 (0.037‑0.049) 0.052 (0.046‑0.061) 0.065 (0.055‑0.079) 0.076 (0.063‑0.093) 0.086 (0.070‑0.109) 0.098 (0.077‑0.126) 0.113 (0.085‑0.152) 0.125 (0.091‑0.174) 10-day 0.016 (0.014‑0.019) 0.023 (0.021‑0.027) 0.033 (0.029‑0.038) 0.040 (0.035‑0.047) 0.051 (0.043‑0.061) 0.059 (0.049‑0.073) 0.068 (0.055‑0.085) 0.077 (0.060‑0.099) 0.089 (0.067‑0.120) 0.099 (0.072‑0.138) 20-day 0.009 (0.008‑0.011) 0.014 (0.012‑0.016) 0.019 (0.017‑0.023) 0.024 (0.021‑0.029) 0.031 (0.026‑0.038) 0.037 (0.030‑0.045) 0.042 (0.034‑0.053) 0.048 (0.038‑0.063) 0.057 (0.043‑0.077) 0.064 (0.046‑0.089) 30-day 0.007 (0.006‑0.008) 0.011 (0.009‑0.012) 0.015 (0.013‑0.018) 0.019 (0.017‑0.022) 0.025 (0.021‑0.030) 0.029 (0.024‑0.036) 0.034 (0.027‑0.043) 0.039 (0.031‑0.051) 0.046 (0.035‑0.062) 0.052 (0.038‑0.073) 45-day 0.006 (0.005‑0.007) 0.008 (0.007‑0.010) 0.012 (0.010‑0.014) 0.015 (0.013‑0.018) 0.019 (0.016‑0.023) 0.023 (0.019‑0.028) 0.027 (0.022‑0.034) 0.031 (0.024‑0.040) 0.037 (0.028‑0.050) 0.042 (0.031‑0.059) 60-day 0.005 (0.004‑0.006) 0.007 (0.006‑0.008) 0.010 (0.009‑0.012) 0.013 (0.011‑0.015) 0.017 (0.014‑0.020) 0.020 (0.016‑0.024) 0.023 (0.019‑0.029) 0.027 (0.021‑0.035) 0.032 (0.024‑0.044) 0.037 (0.027‑0.051) 1 Precipitation frequency (PF) estimates in this table are based on frequency analysis of partial duration series (PDS). Numbers in parenthesis are PF estimates at lower and upper bounds of the 90% confidence interval. The probability that precipitation frequency estimates (for a given duration and average recurrence interval) will be greater than the upper bound (or less than the lower bound) is 5%. Estimates at upper bounds are not checked against probable maximum precipitation (PMP) estimates and may be higher than currently valid PMP values. Please refer to NOAA Atlas 14 document for more information. Back to Top PF graphical             Appendix B    San Bernardino County Rational Hydrology Program     (Hydrology Manual Date ‐ August 1986)  CIVILCADD/CIVILDESIGN  Engineering Software, (c) 1989‐2005 Version 7.1 Rational Hydrology Study        Date: 06/28/24 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ jn4113 Hilton Avenue Pre‐Developed Condition 2 ‐ YEAR STORM ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Program License Serial Number 5016 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐  *********   Hydrology Study Control Information ********** ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Rational hydrology study storm event year is     2.0 Computed rainfall intensity: Storm year =     2.00   1 hour rainfall =     0.575 (In.) Slope used for rainfall intensity curve b =  0.6000 Soil antecedent moisture condition (AMC) = 1 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station        1.000 to Point/Station        2.000 **** INITIAL AREA EVALUATION **** AREA A1 ______________________________________________________________________ UNDEVELOPED (average cover) subarea         Decimal fraction soil group A = 1.000 Decimal fraction soil group B = 0.000 Decimal fraction soil group C = 0.000 Decimal fraction soil group D = 0.000 SCS curve number for soil(AMC 2)  = 50.00 Pervious ratio(Ap) = 1.0000     Max loss rate(Fm)=     0.810(In/Hr) Initial subarea data: Initial area flow distance =   575.000(Ft.) Top (of initial area) elevation =  1269.000(Ft.) Bottom (of initial area) elevation =  1255.540(Ft.) Difference in elevation =    13.460(Ft.) Slope =    0.02341  s(%)=       2.34 TC = k(0.706)*[(length^3)/(elevation change)]^0.2 Initial area time of concentration =   19.002 min. Rainfall intensity =      1.146(In/Hr) for a     2.0 year storm Effective runoff coefficient used for area (Q=KCIA) is C = 0.264 Subarea runoff =      1.206(CFS) Total initial stream area =        3.980(Ac.) Pervious area fraction = 1.000 Initial area Fm value =    0.810(In/Hr) End of computations, Total Study Area =            3.98 (Ac.) The following figures may be used for a unit hydrograph study of the same area. Note: These figures do not consider reduced effective area effects caused by confluences in the rational equation. Area averaged pervious area fraction(Ap) = 1.000 Area averaged SCS curve number =  50.0 San Bernardino County Rational Hydrology Program     (Hydrology Manual Date ‐ August 1986)  CIVILCADD/CIVILDESIGN  Engineering Software, (c) 1989‐2005 Version 7.1 Rational Hydrology Study        Date: 06/28/24 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ jn4113 Hilton Avenue Pre‐Developed Condition 10‐Year Storm ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Program License Serial Number 5016 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐  *********   Hydrology Study Control Information ********** ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Rational hydrology study storm event year is    10.0 Computed rainfall intensity: Storm year =    10.00   1 hour rainfall =     0.760 (In.) Slope used for rainfall intensity curve b =  0.6000 Soil antecedent moisture condition (AMC) = 1 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station        1.000 to Point/Station        2.000 **** INITIAL AREA EVALUATION **** AREA A1 ______________________________________________________________________ UNDEVELOPED (average cover) subarea         Decimal fraction soil group A = 1.000 Decimal fraction soil group B = 0.000 Decimal fraction soil group C = 0.000 Decimal fraction soil group D = 0.000 SCS curve number for soil(AMC 2)  = 50.00 Pervious ratio(Ap) = 1.0000     Max loss rate(Fm)=     0.810(In/Hr) Initial subarea data: Initial area flow distance =   575.000(Ft.) Top (of initial area) elevation =  1269.000(Ft.) Bottom (of initial area) elevation =  1255.540(Ft.) Difference in elevation =    13.460(Ft.) Slope =    0.02341  s(%)=       2.34 TC = k(0.706)*[(length^3)/(elevation change)]^0.2 Initial area time of concentration =   19.002 min. Rainfall intensity =      1.515(In/Hr) for a    10.0 year storm Effective runoff coefficient used for area (Q=KCIA) is C = 0.419 Subarea runoff =      2.527(CFS) Total initial stream area =        3.980(Ac.) Pervious area fraction = 1.000 Initial area Fm value =    0.810(In/Hr) End of computations, Total Study Area =            3.98 (Ac.) The following figures may be used for a unit hydrograph study of the same area. Note: These figures do not consider reduced effective area effects caused by confluences in the rational equation. Area averaged pervious area fraction(Ap) = 1.000 Area averaged SCS curve number =  50.0 San Bernardino County Rational Hydrology Program     (Hydrology Manual Date ‐ August 1986)  CIVILCADD/CIVILDESIGN  Engineering Software, (c) 1989‐2005 Version 7.1 Rational Hydrology Study        Date: 06/28/24 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ jn4113 Hilton Avenue Pre‐Developed Condition 25 ‐ YEAR STORM                                                                               ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Program License Serial Number 5016 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐  *********   Hydrology Study Control Information ********** ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Rational hydrology study storm event year is    25.0 Computed rainfall intensity: Storm year =    25.00   1 hour rainfall =     0.915 (In.) Slope used for rainfall intensity curve b =  0.6000 Soil antecedent moisture condition (AMC) = 2 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station        1.000 to Point/Station        2.000 **** INITIAL AREA EVALUATION **** ______________________________________________________________________ UNDEVELOPED (average cover) subarea         Decimal fraction soil group A = 1.000 Decimal fraction soil group B = 0.000 Decimal fraction soil group C = 0.000 Decimal fraction soil group D = 0.000 SCS curve number for soil(AMC 2)  = 50.00 Pervious ratio(Ap) = 1.0000     Max loss rate(Fm)=     0.810(In/Hr) Initial subarea data: Initial area flow distance =   575.000(Ft.) Top (of initial area) elevation =  1269.000(Ft.) Bottom (of initial area) elevation =  1255.540(Ft.) Difference in elevation =    13.460(Ft.) Slope =    0.02341  s(%)=       2.34 TC = k(0.706)*[(length^3)/(elevation change)]^0.2 Initial area time of concentration =   19.002 min. Rainfall intensity =      1.824(In/Hr) for a    25.0 year storm Effective runoff coefficient used for area (Q=KCIA) is C = 0.501 Subarea runoff =      3.634(CFS) Total initial stream area =        3.980(Ac.) Pervious area fraction = 1.000 Initial area Fm value =    0.810(In/Hr) End of computations, Total Study Area =            3.98 (Ac.) The following figures may be used for a unit hydrograph study of the same area. Note: These figures do not consider reduced effective area effects caused by confluences in the rational equation. Area averaged pervious area fraction(Ap) = 1.000 Area averaged SCS curve number =  50.0 San Bernardino County Rational Hydrology Program     (Hydrology Manual Date ‐ August 1986)  CIVILCADD/CIVILDESIGN  Engineering Software, (c) 1989‐2005 Version 7.1 Rational Hydrology Study        Date: 06/28/24 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ JN4113 HILTON DRIVE Pre‐Developed Condition 100‐Year Storm ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Program License Serial Number 5016 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐  *********   Hydrology Study Control Information ********** ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Rational hydrology study storm event year is   100.0 Computed rainfall intensity: Storm year =   100.00   1 hour rainfall =     1.130 (In.) Slope used for rainfall intensity curve b =  0.6000 Soil antecedent moisture condition (AMC) = 2 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station        1.000 to Point/Station        2.000 **** INITIAL AREA EVALUATION **** AREA A1 ______________________________________________________________________ UNDEVELOPED (average cover) subarea         Decimal fraction soil group A = 1.000 Decimal fraction soil group B = 0.000 Decimal fraction soil group C = 0.000 Decimal fraction soil group D = 0.000 SCS curve number for soil(AMC 2)  = 50.00 Adjusted SCS curve number for AMC 3 = 70.00 Pervious ratio(Ap) = 1.0000     Max loss rate(Fm)=     0.532(In/Hr) Initial subarea data: Initial area flow distance =   575.000(Ft.) Top (of initial area) elevation =  1269.000(Ft.) Bottom (of initial area) elevation =  1255.540(Ft.) Difference in elevation =    13.460(Ft.) Slope =    0.02341  s(%)=       2.34 TC = k(0.706)*[(length^3)/(elevation change)]^0.2 Initial area time of concentration =   19.002 min. Rainfall intensity =      2.253(In/Hr) for a   100.0 year storm Effective runoff coefficient used for area (Q=KCIA) is C = 0.687 Subarea runoff =      6.162(CFS) Total initial stream area =        3.980(Ac.) Pervious area fraction = 1.000 Initial area Fm value =    0.532(In/Hr) End of computations, Total Study Area =            3.98 (Ac.) The following figures may be used for a unit hydrograph study of the same area. Note: These figures do not consider reduced effective area effects caused by confluences in the rational equation. Area averaged pervious area fraction(Ap) = 1.000 Area averaged SCS curve number =  50.0                 Appendix C                                  San Bernardino County Rational Hydrology Program     (Hydrology Manual Date ‐ August 1986)  CIVILCADD/CIVILDESIGN  Engineering Software, (c) 1989‐2005 Version 7.1 Rational Hydrology Study        Date: 07/24/24 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ JN 4113 Hilton Ave Post‐Developed Condition 2‐Year Storm ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Program License Serial Number 5016 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐  *********   Hydrology Study Control Information ********** ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Rational hydrology study storm event year is     2.0    10 Year storm 1 hour rainfall  =      0.915(In.)   100 Year storm 1 hour rainfall  =      1.480(In.) Computed rainfall intensity: Storm year =     2.00   1 hour rainfall =     0.520 (In.) Slope used for rainfall intensity curve b =  0.6000 Soil antecedent moisture condition (AMC) = 2 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station        1.000 to Point/Station        2.000 **** INITIAL AREA EVALUATION **** AREA  A1 ______________________________________________________________________ COMMERCIAL subarea type Decimal fraction soil group A = 1.000 Decimal fraction soil group B = 0.000 Decimal fraction soil group C = 0.000 Decimal fraction soil group D = 0.000 SCS curve number for soil(AMC 2)  = 32.00 Pervious ratio(Ap) = 0.1000     Max loss rate(Fm)=     0.098(In/Hr) Initial subarea data: Initial area flow distance =   773.000(Ft.) Top (of initial area) elevation =  1265.000(Ft.) Bottom (of initial area) elevation =  1256.420(Ft.) Difference in elevation =     8.580(Ft.) Slope =    0.01110  s(%)=       1.11 TC = k(0.304)*[(length^3)/(elevation change)]^0.2 Initial area time of concentration =   10.693 min. Rainfall intensity =      1.464(In/Hr) for a     2.0 year storm Effective runoff coefficient used for area (Q=KCIA) is C = 0.840 Subarea runoff =      2.717(CFS) Total initial stream area =        2.210(Ac.) Pervious area fraction = 0.100 Initial area Fm value =    0.098(In/Hr) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station        2.000 to Point/Station        4.000 **** PIPEFLOW TRAVEL TIME (User specified size) **** ______________________________________________________________________ Upstream point/station elevation =  1255.900(Ft.) Downstream point/station elevation =  1255.680(Ft.) Pipe length  =    44.87(Ft.)   Manning's N = 0.013 No. of pipes = 1  Required pipe flow  =     2.717(CFS) Given pipe size =      8.00(In.) NOTE: Normal flow is pressure flow in user selected pipe size. The approximate hydraulic grade line above the pipe invert is      3.459(Ft.)  at the headworks or inlet of the pipe(s)  Pipe friction loss =      2.268(Ft.)  Minor friction loss =      1.411(Ft.) K‐factor =   1.50 Pipe flow velocity =      7.78(Ft/s) Travel time through pipe =    0.10 min. Time of concentration (TC) =    10.79 min. ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station        1.000 to Point/Station        4.000 **** CONFLUENCE OF MINOR STREAMS **** ______________________________________________________________________ Along Main Stream number: 1 in normal stream number 1 Stream flow area =      2.210(Ac.) Runoff from this stream =      2.717(CFS) Time of concentration =   10.79 min. Rainfall intensity =     1.456(In/Hr) Area averaged loss rate (Fm) =    0.0978(In/Hr) Area averaged Pervious ratio (Ap) = 0.1000 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station        1.000 to Point/Station        3.000 **** INITIAL AREA EVALUATION **** AREA A2 ______________________________________________________________________ COMMERCIAL subarea type                      Decimal fraction soil group A = 1.000 Decimal fraction soil group B = 0.000 Decimal fraction soil group C = 0.000 Decimal fraction soil group D = 0.000 SCS curve number for soil(AMC 2)  = 32.00 Pervious ratio(Ap) = 0.1000     Max loss rate(Fm)=     0.098(In/Hr) Initial subarea data: Initial area flow distance =   672.000(Ft.) Top (of initial area) elevation =  1265.000(Ft.) Bottom (of initial area) elevation =  1256.650(Ft.) Difference in elevation =     8.350(Ft.) Slope =    0.01243  s(%)=       1.24 TC = k(0.304)*[(length^3)/(elevation change)]^0.2 Initial area time of concentration =    9.885 min. Rainfall intensity =      1.535(In/Hr) for a     2.0 year storm Effective runoff coefficient used for area (Q=KCIA) is C = 0.843 Subarea runoff =      2.289(CFS) Total initial stream area =        1.770(Ac.) Pervious area fraction = 0.100 Initial area Fm value =    0.098(In/Hr) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station        3.000 to Point/Station        4.000 **** PIPEFLOW TRAVEL TIME (User specified size) **** ______________________________________________________________________ Upstream point/station elevation =  1251.150(Ft.) Downstream point/station elevation =  1249.640(Ft.) Pipe length  =   202.00(Ft.)   Manning's N = 0.013 No. of pipes = 1  Required pipe flow  =     2.289(CFS) Given pipe size =     18.00(In.) Calculated individual pipe flow  =     2.289(CFS) Normal flow depth in pipe =    6.16(In.) Flow top width inside pipe =   17.08(In.) Critical Depth =    6.86(In.) Pipe flow velocity =      4.28(Ft/s) Travel time through pipe =    0.79 min. Time of concentration (TC) =    10.67 min. ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station        3.000 to Point/Station        4.000 **** CONFLUENCE OF MINOR STREAMS **** ______________________________________________________________________ Along Main Stream number: 1 in normal stream number 2 Stream flow area =      1.770(Ac.) Runoff from this stream =      2.289(CFS) Time of concentration =   10.67 min. Rainfall intensity =     1.466(In/Hr) Area averaged loss rate (Fm) =    0.0978(In/Hr) Area averaged Pervious ratio (Ap) = 0.1000 Summary of stream data: Stream Flow rate    Area    TC     Fm       Rainfall Intensity  No.    (CFS)   (Ac.)       (min) (In/Hr)     (In/Hr) 1      2.72     2.210     10.79    0.098      1.456 2      2.29     1.770     10.67    0.098      1.466 Qmax(1) =    1.000 *    1.000 *     2.717) +    0.993 *    1.000 *     2.289) + =       4.990 Qmax(2) =    1.007 *    0.989 *     2.717) +    1.000 *    1.000 *     2.289) + =       4.995 Total of 2 streams to confluence: Flow rates before confluence point:        2.717       2.289 Maximum flow rates at confluence using above data:         4.990        4.995 Area of streams before confluence:         2.210        1.770 Effective area values after confluence:         3.980        3.956 Results of confluence: Total flow rate =      4.995(CFS) Time of concentration =    10.671 min. Effective stream area after confluence =      3.956(Ac.) Study area average Pervious fraction(Ap) =  0.100 Study area average soil loss rate(Fm) =    0.098(In/Hr) Study area total (this main stream) =       3.98(Ac.) End of computations, Total Study Area =            3.98 (Ac.) The following figures may be used for a unit hydrograph study of the same area. Note: These figures do not consider reduced effective area effects caused by confluences in the rational equation. Area averaged pervious area fraction(Ap) = 0.100 Area averaged SCS curve number =  32.0 San Bernardino County Rational Hydrology Program     (Hydrology Manual Date ‐ August 1986)  CIVILCADD/CIVILDESIGN  Engineering Software, (c) 1989‐2005 Version 7.1 Rational Hydrology Study        Date: 07/24/24 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Program License Serial Number 5016 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐  *********   Hydrology Study Control Information ********** ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Rational hydrology study storm event year is    10.0 Computed rainfall intensity: Storm year =    10.00   1 hour rainfall =     0.915 (In.) Slope used for rainfall intensity curve b =  0.6000 Soil antecedent moisture condition (AMC) = 2 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station        1.000 to Point/Station        2.000 **** INITIAL AREA EVALUATION **** AREA A1 ______________________________________________________________________ COMMERCIAL subarea type Decimal fraction soil group A = 1.000 Decimal fraction soil group B = 0.000 Decimal fraction soil group C = 0.000 Decimal fraction soil group D = 0.000 SCS curve number for soil(AMC 2)  = 32.00 Pervious ratio(Ap) = 0.1000     Max loss rate(Fm)=     0.098(In/Hr) Initial subarea data: Initial area flow distance =   773.000(Ft.) Top (of initial area) elevation =  1265.000(Ft.) Bottom (of initial area) elevation =  1256.420(Ft.) Difference in elevation =     8.580(Ft.) Slope =    0.01110  s(%)=       1.11 TC = k(0.304)*[(length^3)/(elevation change)]^0.2 Initial area time of concentration =   10.693 min. Rainfall intensity =      2.575(In/Hr) for a    10.0 year storm Effective runoff coefficient used for area (Q=KCIA) is C = 0.866 Subarea runoff =      4.928(CFS) Total initial stream area =        2.210(Ac.) Pervious area fraction = 0.100 Initial area Fm value =    0.098(In/Hr) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station        2.000 to Point/Station        4.000 **** PIPEFLOW TRAVEL TIME (User specified size) **** ______________________________________________________________________ Upstream point/station elevation =  1255.900(Ft.) Downstream point/station elevation =  1255.680(Ft.) Pipe length  =    44.87(Ft.)   Manning's N = 0.013 No. of pipes = 1  Required pipe flow  =     4.928(CFS) Given pipe size =      8.00(In.) NOTE: Normal flow is pressure flow in user selected pipe size. The approximate hydraulic grade line above the pipe invert is     11.883(Ft.)  at the headworks or inlet of the pipe(s)  Pipe friction loss =      7.460(Ft.)  Minor friction loss =      4.643(Ft.) K‐factor =   1.50 Pipe flow velocity =     14.12(Ft/s) Travel time through pipe =    0.05 min. Time of concentration (TC) =    10.75 min. ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station        1.000 to Point/Station        4.000 **** CONFLUENCE OF MINOR STREAMS **** ______________________________________________________________________ Along Main Stream number: 1 in normal stream number 1 Stream flow area =      2.210(Ac.) Runoff from this stream =      4.928(CFS) Time of concentration =   10.75 min. Rainfall intensity =     2.568(In/Hr) Area averaged loss rate (Fm) =    0.0978(In/Hr) Area averaged Pervious ratio (Ap) = 0.1000 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station        1.000 to Point/Station        3.000 **** INITIAL AREA EVALUATION **** AREA A2 ______________________________________________________________________ COMMERCIAL subarea type                      Decimal fraction soil group A = 1.000 Decimal fraction soil group B = 0.000 Decimal fraction soil group C = 0.000 Decimal fraction soil group D = 0.000 SCS curve number for soil(AMC 2)  = 32.00 Pervious ratio(Ap) = 0.1000     Max loss rate(Fm)=     0.098(In/Hr) Initial subarea data: Initial area flow distance =   672.000(Ft.) Top (of initial area) elevation =  1265.000(Ft.) Bottom (of initial area) elevation =  1256.650(Ft.) Difference in elevation =     8.350(Ft.) Slope =    0.01243  s(%)=       1.24 TC = k(0.304)*[(length^3)/(elevation change)]^0.2 Initial area time of concentration =    9.885 min. Rainfall intensity =      2.700(In/Hr) for a    10.0 year storm Effective runoff coefficient used for area (Q=KCIA) is C = 0.867 Subarea runoff =      4.145(CFS) Total initial stream area =        1.770(Ac.) Pervious area fraction = 0.100 Initial area Fm value =    0.098(In/Hr) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station        3.000 to Point/Station        4.000 **** PIPEFLOW TRAVEL TIME (User specified size) **** ______________________________________________________________________ Upstream point/station elevation =  1251.150(Ft.) Downstream point/station elevation =  1249.640(Ft.) Pipe length  =   202.00(Ft.)   Manning's N = 0.013 No. of pipes = 1  Required pipe flow  =     4.145(CFS) Given pipe size =     18.00(In.) Calculated individual pipe flow  =     4.145(CFS) Normal flow depth in pipe =    8.53(In.) Flow top width inside pipe =   17.98(In.) Critical Depth =    9.35(In.) Pipe flow velocity =      5.02(Ft/s) Travel time through pipe =    0.67 min. Time of concentration (TC) =    10.56 min. ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station        3.000 to Point/Station        4.000 **** CONFLUENCE OF MINOR STREAMS **** ______________________________________________________________________ Along Main Stream number: 1 in normal stream number 2 Stream flow area =      1.770(Ac.) Runoff from this stream =      4.145(CFS) Time of concentration =   10.56 min. Rainfall intensity =     2.596(In/Hr) Area averaged loss rate (Fm) =    0.0978(In/Hr) Area averaged Pervious ratio (Ap) = 0.1000 Summary of stream data: Stream Flow rate    Area    TC     Fm       Rainfall Intensity  No.    (CFS)   (Ac.)       (min) (In/Hr)     (In/Hr) 1      4.93     2.210     10.75    0.098      2.568 2      4.15     1.770     10.56    0.098      2.596 Qmax(1) =    1.000 *    1.000 *     4.928) +    0.989 *    1.000 *     4.145) + =       9.027 Qmax(2) =    1.011 *    0.982 *     4.928) +    1.000 *    1.000 *     4.145) + =       9.040 Total of 2 streams to confluence: Flow rates before confluence point:        4.928       4.145 Maximum flow rates at confluence using above data:         9.027        9.040 Area of streams before confluence:         2.210        1.770 Effective area values after confluence:         3.980        3.941 Results of confluence: Total flow rate =      9.040(CFS) Time of concentration =    10.555 min. Effective stream area after confluence =      3.941(Ac.) Study area average Pervious fraction(Ap) =  0.100 Study area average soil loss rate(Fm) =    0.098(In/Hr) Study area total (this main stream) =       3.98(Ac.) End of computations, Total Study Area =            3.98 (Ac.) The following figures may be used for a unit hydrograph study of the same area. Note: These figures do not consider reduced effective area effects caused by confluences in the rational equation. Area averaged pervious area fraction(Ap) = 0.100 Area averaged SCS curve number =  32.0 San Bernardino County Rational Hydrology Program     (Hydrology Manual Date ‐ August 1986)  CIVILCADD/CIVILDESIGN  Engineering Software, (c) 1989‐2005 Version 7.1 Rational Hydrology Study        Date: 07/24/24 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ JN 4113 Hilton Ave Post‐Developed Condition 25‐Year Storm ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Program License Serial Number 5016 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐  *********   Hydrology Study Control Information ********** ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Rational hydrology study storm event year is    25.0    10 Year storm 1 hour rainfall  =      0.915(In.)   100 Year storm 1 hour rainfall  =      1.480(In.) Computed rainfall intensity: Storm year =    25.00   1 hour rainfall =     1.140 (In.) Slope used for rainfall intensity curve b =  0.6000 Soil antecedent moisture condition (AMC) = 3 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station        1.000 to Point/Station        2.000 **** INITIAL AREA EVALUATION **** AREA A1 ______________________________________________________________________ COMMERCIAL subarea type Decimal fraction soil group A = 1.000 Decimal fraction soil group B = 0.000 Decimal fraction soil group C = 0.000 Decimal fraction soil group D = 0.000 SCS curve number for soil(AMC 2)  = 32.00 Pervious ratio(Ap) = 0.1000     Max loss rate(Fm)=     0.098(In/Hr) Initial subarea data: Initial area flow distance =   773.000(Ft.) Top (of initial area) elevation =  1265.000(Ft.) Bottom (of initial area) elevation =  1256.420(Ft.) Difference in elevation =     8.580(Ft.) Slope =    0.01110  s(%)=       1.11 TC = k(0.304)*[(length^3)/(elevation change)]^0.2 Initial area time of concentration =   10.693 min. Rainfall intensity =      3.208(In/Hr) for a    25.0 year storm Effective runoff coefficient used for area (Q=KCIA) is C = 0.873 Subarea runoff =      6.187(CFS) Total initial stream area =        2.210(Ac.) Pervious area fraction = 0.100 Initial area Fm value =    0.098(In/Hr) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station        2.000 to Point/Station        4.000 **** PIPEFLOW TRAVEL TIME (User specified size) **** ______________________________________________________________________ Upstream point/station elevation =  1255.900(Ft.) Downstream point/station elevation =  1255.680(Ft.) Pipe length  =    44.87(Ft.)   Manning's N = 0.013 No. of pipes = 1  Required pipe flow  =     6.187(CFS) Given pipe size =      8.00(In.) NOTE: Normal flow is pressure flow in user selected pipe size. The approximate hydraulic grade line above the pipe invert is     18.855(Ft.)  at the headworks or inlet of the pipe(s)  Pipe friction loss =     11.758(Ft.)  Minor friction loss =      7.317(Ft.) K‐factor =   1.50 Pipe flow velocity =     17.72(Ft/s) Travel time through pipe =    0.04 min. Time of concentration (TC) =    10.73 min. ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station        1.000 to Point/Station        4.000 **** CONFLUENCE OF MINOR STREAMS **** ______________________________________________________________________ Along Main Stream number: 1 in normal stream number 1 Stream flow area =      2.210(Ac.) Runoff from this stream =      6.187(CFS) Time of concentration =   10.73 min. Rainfall intensity =     3.201(In/Hr) Area averaged loss rate (Fm) =    0.0978(In/Hr) Area averaged Pervious ratio (Ap) = 0.1000 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station        1.000 to Point/Station        3.000 **** INITIAL AREA EVALUATION **** AREA A2 ______________________________________________________________________ COMMERCIAL subarea type                      Decimal fraction soil group A = 1.000 Decimal fraction soil group B = 0.000 Decimal fraction soil group C = 0.000 Decimal fraction soil group D = 0.000 SCS curve number for soil(AMC 2)  = 32.00 Pervious ratio(Ap) = 0.1000     Max loss rate(Fm)=     0.098(In/Hr) Initial subarea data: Initial area flow distance =   672.000(Ft.) Top (of initial area) elevation =  1265.000(Ft.) Bottom (of initial area) elevation =  1256.650(Ft.) Difference in elevation =     8.350(Ft.) Slope =    0.01243  s(%)=       1.24 TC = k(0.304)*[(length^3)/(elevation change)]^0.2 Initial area time of concentration =    9.885 min. Rainfall intensity =      3.363(In/Hr) for a    25.0 year storm Effective runoff coefficient used for area (Q=KCIA) is C = 0.874 Subarea runoff =      5.202(CFS) Total initial stream area =        1.770(Ac.) Pervious area fraction = 0.100 Initial area Fm value =    0.098(In/Hr) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station        3.000 to Point/Station        4.000 **** PIPEFLOW TRAVEL TIME (User specified size) **** ______________________________________________________________________ Upstream point/station elevation =  1251.150(Ft.) Downstream point/station elevation =  1249.640(Ft.) Pipe length  =   202.00(Ft.)   Manning's N = 0.013 No. of pipes = 1  Required pipe flow  =     5.202(CFS) Given pipe size =     18.00(In.) Calculated individual pipe flow  =     5.202(CFS) Normal flow depth in pipe =    9.76(In.) Flow top width inside pipe =   17.94(In.) Critical Depth =   10.53(In.) Pipe flow velocity =      5.31(Ft/s) Travel time through pipe =    0.63 min. Time of concentration (TC) =    10.52 min. ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station        3.000 to Point/Station        4.000 **** CONFLUENCE OF MINOR STREAMS **** ______________________________________________________________________ Along Main Stream number: 1 in normal stream number 2 Stream flow area =      1.770(Ac.) Runoff from this stream =      5.202(CFS) Time of concentration =   10.52 min. Rainfall intensity =     3.240(In/Hr) Area averaged loss rate (Fm) =    0.0978(In/Hr) Area averaged Pervious ratio (Ap) = 0.1000 Summary of stream data: Stream Flow rate    Area    TC     Fm       Rainfall Intensity  No.    (CFS)   (Ac.)       (min) (In/Hr)     (In/Hr) 1      6.19     2.210     10.73    0.098      3.201 2      5.20     1.770     10.52    0.098      3.240 Qmax(1) =    1.000 *    1.000 *     6.187) +    0.987 *    1.000 *     5.202) + =      11.324 Qmax(2) =    1.013 *    0.980 *     6.187) +    1.000 *    1.000 *     5.202) + =      11.341 Total of 2 streams to confluence: Flow rates before confluence point:        6.187       5.202 Maximum flow rates at confluence using above data:        11.324       11.341 Area of streams before confluence:         2.210        1.770 Effective area values after confluence:         3.980        3.935 Results of confluence: Total flow rate =     11.341(CFS) Time of concentration =    10.518 min. Effective stream area after confluence =      3.935(Ac.) Study area average Pervious fraction(Ap) =  0.100 Study area average soil loss rate(Fm) =    0.098(In/Hr) Study area total (this main stream) =       3.98(Ac.) End of computations, Total Study Area =            3.98 (Ac.) The following figures may be used for a unit hydrograph study of the same area. Note: These figures do not consider reduced effective area effects caused by confluences in the rational equation. Area averaged pervious area fraction(Ap) = 0.100 Area averaged SCS curve number =  32.0 San Bernardino County Rational Hydrology Program     (Hydrology Manual Date ‐ August 1986)  CIVILCADD/CIVILDESIGN  Engineering Software, (c) 1989‐2005 Version 7.1 Rational Hydrology Study        Date: 08/16/23 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Program License Serial Number 5016 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐  *********   Hydrology Study Control Information ********** ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Rational hydrology study storm event year is   100.0    10 Year storm 1 hour rainfall  =      0.915(In.)   100 Year storm 1 hour rainfall  =      1.480(In.) Computed rainfall intensity: Storm year =   100.00   1 hour rainfall =     1.480 (In.) Slope used for rainfall intensity curve b =  0.6000 Soil antecedent moisture condition (AMC) = 3 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station        1.000 to Point/Station        2.000 **** INITIAL AREA EVALUATION **** AREA A1 ______________________________________________________________________ COMMERCIAL subarea type                      Decimal fraction soil group A = 1.000 Decimal fraction soil group B = 0.000 Decimal fraction soil group C = 0.000 Decimal fraction soil group D = 0.000 SCS curve number for soil(AMC 2)  = 32.00 Adjusted SCS curve number for AMC 3 = 52.00 Pervious ratio(Ap) = 0.1000     Max loss rate(Fm)=     0.079(In/Hr) Initial subarea data: Initial area flow distance =   773.000(Ft.) Top (of initial area) elevation =  1265.000(Ft.) Bottom (of initial area) elevation =  1256.420(Ft.) Difference in elevation =     8.580(Ft.) Slope =    0.01110  s(%)=       1.11 TC = k(0.304)*[(length^3)/(elevation change)]^0.2 Initial area time of concentration =   10.693 min. Rainfall intensity =      4.166(In/Hr) for a   100.0 year storm Effective runoff coefficient used for area (Q=KCIA) is C = 0.883 Subarea runoff =      8.130(CFS) Total initial stream area =        2.210(Ac.) Pervious area fraction = 0.100 Initial area Fm value =    0.079(In/Hr) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station        2.000 to Point/Station        4.000 **** PIPEFLOW TRAVEL TIME (User specified size) **** ______________________________________________________________________ Upstream point/station elevation =  1255.900(Ft.) Downstream point/station elevation =  1255.680(Ft.) Pipe length  =    44.87(Ft.)   Manning's N = 0.013 No. of pipes = 1  Required pipe flow  =     8.130(CFS) Given pipe size =      8.00(In.) NOTE: Normal flow is pressure flow in user selected pipe size. The approximate hydraulic grade line above the pipe invert is     32.715(Ft.)  at the headworks or inlet of the pipe(s)  Pipe friction loss =     20.302(Ft.)  Minor friction loss =     12.634(Ft.) K‐factor =   1.50 Pipe flow velocity =     23.29(Ft/s) Travel time through pipe =    0.03 min. Time of concentration (TC) =    10.72 min. ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station        1.000 to Point/Station        4.000 **** CONFLUENCE OF MINOR STREAMS **** ______________________________________________________________________ Along Main Stream number: 1 in normal stream number 1 Stream flow area =      2.210(Ac.) Runoff from this stream =      8.130(CFS) Time of concentration =   10.72 min. Rainfall intensity =     4.158(In/Hr) Area averaged loss rate (Fm) =    0.0785(In/Hr) Area averaged Pervious ratio (Ap) = 0.1000 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station        1.000 to Point/Station        3.000 **** INITIAL AREA EVALUATION **** AREA A2 ______________________________________________________________________ COMMERCIAL subarea type                      Decimal fraction soil group A = 1.000 Decimal fraction soil group B = 0.000 Decimal fraction soil group C = 0.000 Decimal fraction soil group D = 0.000 SCS curve number for soil(AMC 2)  = 32.00 Adjusted SCS curve number for AMC 3 = 52.00 Pervious ratio(Ap) = 0.1000     Max loss rate(Fm)=     0.079(In/Hr) Initial subarea data: Initial area flow distance =   672.000(Ft.) Top (of initial area) elevation =  1265.000(Ft.) Bottom (of initial area) elevation =  1256.650(Ft.) Difference in elevation =     8.350(Ft.) Slope =    0.01243  s(%)=       1.24 TC = k(0.304)*[(length^3)/(elevation change)]^0.2 Initial area time of concentration =    9.885 min. Rainfall intensity =      4.367(In/Hr) for a   100.0 year storm Effective runoff coefficient used for area (Q=KCIA) is C = 0.884 Subarea runoff =      6.831(CFS) Total initial stream area =        1.770(Ac.) Pervious area fraction = 0.100 Initial area Fm value =    0.079(In/Hr) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station        3.000 to Point/Station        4.000 **** PIPEFLOW TRAVEL TIME (User specified size) **** ______________________________________________________________________ Upstream point/station elevation =  1251.150(Ft.) Downstream point/station elevation =  1249.640(Ft.) Pipe length  =   202.00(Ft.)   Manning's N = 0.013 No. of pipes = 1  Required pipe flow  =     6.831(CFS) Given pipe size =     18.00(In.) Calculated individual pipe flow  =     6.831(CFS) Normal flow depth in pipe =   11.65(In.) Flow top width inside pipe =   17.20(In.) Critical Depth =   12.14(In.) Pipe flow velocity =      5.64(Ft/s) Travel time through pipe =    0.60 min. Time of concentration (TC) =    10.48 min. ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station        3.000 to Point/Station        4.000 **** CONFLUENCE OF MINOR STREAMS **** ______________________________________________________________________ Along Main Stream number: 1 in normal stream number 2 Stream flow area =      1.770(Ac.) Runoff from this stream =      6.831(CFS) Time of concentration =   10.48 min. Rainfall intensity =     4.216(In/Hr) Area averaged loss rate (Fm) =    0.0785(In/Hr) Area averaged Pervious ratio (Ap) = 0.1000 Summary of stream data: Stream Flow rate    Area    TC     Fm       Rainfall Intensity  No.    (CFS)   (Ac.)       (min) (In/Hr)     (In/Hr) 1      8.13     2.210     10.72    0.079      4.158 2      6.83     1.770     10.48    0.079      4.216 Qmax(1) =    1.000 *    1.000 *     8.130) +    0.986 *    1.000 *     6.831) + =      14.866 Qmax(2) =    1.014 *    0.977 *     8.130) +    1.000 *    1.000 *     6.831) + =      14.889 Total of 2 streams to confluence: Flow rates before confluence point:        8.130       6.831 Maximum flow rates at confluence using above data:        14.866       14.889 Area of streams before confluence:         2.210        1.770 Effective area values after confluence:         3.980        3.930 Results of confluence: Total flow rate =     14.889(CFS) Time of concentration =    10.481 min. Effective stream area after confluence =      3.930(Ac.) Study area average Pervious fraction(Ap) =  0.100 Study area average soil loss rate(Fm) =    0.079(In/Hr) Study area total (this main stream) =       3.98(Ac.) End of computations, Total Study Area =            3.98 (Ac.) The following figures may be used for a unit hydrograph study of the same area. Note: These figures do not consider reduced effective area effects caused by confluences in the rational equation. Area averaged pervious area fraction(Ap) = 0.100 Area averaged SCS curve number =  32.0                       Appendix D                              U n i t   H y d r o g r a p h    A n a l y s i s Copyright (c) CIVILCADD/CIVILDESIGN, 1989 ‐ 2004, Version 7.0 Study date  07/24/24 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ San Bernardino County Synthetic Unit Hydrology Method Manual date ‐ August 1986 Program License Serial Number 5016 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ JN 4113 UNIT HYDROGRAPH 2 YEAR 3 HOUR STORM‐ POST‐DEVELOPED ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Storm Event Year = 2 Antecedent Moisture Condition = 2  English (in‐lb) Input Units Used  English Rainfall Data (Inches) Input Values Used  English Units used in output format Area averaged rainfall intensity isohyetal data: Sub‐Area        Duration        Isohyetal (Ac.)            (hours)         (In) Rainfall data for year 10      3.98            1           0.92 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Rainfall data for year 2      3.98            6           0.27 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Rainfall data for year 2      3.98           24           0.13 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Rainfall data for year 100      3.98            1           1.48 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Rainfall data for year 100      3.98            6           0.62 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Rainfall data for year 100      3.98           24           0.29 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ ******** Area‐averaged max loss rate, Fm ******** SCS curve  SCS curve     Area     Area     Fp(Fig C6)    Ap      Fm No.(AMCII) NO.(AMC 2)    (Ac.)    Fraction     (In/Hr)  (dec.)   (In/Hr)  32.0      32.0          3.98      1.000     0.978    0.130    0.127 Area‐averaged adjusted loss rate Fm (In/Hr) =  0.127 ********* Area‐Averaged low loss rate fraction, Yb ********** Area       Area          SCS CN    SCS CN      S     Pervious  (Ac.)      Fract         (AMC2)    (AMC2)           Yield Fr      0.52   0.130         32.0      32.0       2.61     0.000      3.46   0.870         98.0      98.0       0.20     0.647 Area‐averaged catchment yield fraction, Y =  0.563 Area‐averaged low loss fraction, Yb =  0.437 User entry of time of concentration  =   0.178 (hours) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Watershed area =       3.98(Ac.) Catchment Lag time =   0.142 hours Unit interval =   5.000 minutes Unit interval percentage of lag time = 58.5700 Hydrograph baseflow =     0.00(CFS) Average maximum watershed loss rate(Fm) =  0.127(In/Hr) Average low loss rate fraction (Yb) = 0.437 (decimal) VALLEY DEVELOPED S‐Graph Selected Computed peak 5‐minute rainfall =  0.192(In) Computed peak 30‐minute rainfall =  0.394(In) Specified peak 1‐hour rainfall =  0.520(In) Computed peak 3‐hour rainfall =  0.520(In) Specified peak 6‐hour rainfall =  0.521(In) Specified peak 24‐hour rainfall =  0.522(In) Note: user specified rainfall values used. Rainfall depth area reduction factors: Using a total area of       3.98(Ac.) (Ref: fig. E‐4) 5‐minute factor = 1.000     Adjusted rainfall =  0.192(In) 30‐minute factor = 1.000    Adjusted rainfall =  0.394(In) 1‐hour factor = 1.000       Adjusted rainfall =  0.520(In) 3‐hour factor = 1.000       Adjusted rainfall =  0.520(In) 6‐hour factor = 1.000       Adjusted rainfall =  0.521(In) 24‐hour factor = 1.000      Adjusted rainfall =  0.522(In) ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ U n i t  H y d r o g r a p h  +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Interval          'S' Graph          Unit Hydrograph Number            Mean values             ((CFS)) ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ (K =        48.13 (CFS))   1                6.220                   2.994   2               39.874                  16.198   3               80.296                  19.457   4               94.943                   7.050   5               98.536                   1.729   6              100.000                   0.705 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Total soil rain loss =      0.12(In) Total effective rainfall =      0.40(In) Peak flow rate in flood hydrograph =      4.43(CFS) ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++                     3 ‐ H O U R    S T O R M                R u n o f f      H y d r o g r a p h ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐             Hydrograph in   5   Minute intervals ((CFS)) ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐   Time(h+m) Volume Ac.Ft   Q(CFS)  0        2.5       5.0       7.5      10.0   ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐     0+ 5       0.0000      0.00  Q         |         |         |         |      0+10       0.0000      0.00  Q         |         |         |         |      0+15       0.0000      0.00  Q         |         |         |         |      0+20       0.0000      0.00  Q         |         |         |         |      0+25       0.0000      0.00  Q         |         |         |         |      0+30       0.0000      0.00  Q         |         |         |         |      0+35       0.0000      0.00  Q         |         |         |         |      0+40       0.0000      0.00  Q         |         |         |         |      0+45       0.0000      0.00  Q         |         |         |         |      0+50       0.0000      0.00  Q         |         |         |         |      0+55       0.0000      0.00  Q         |         |         |         |      1+ 0       0.0000      0.00  Q         |         |         |         |      1+ 5       0.0000      0.00  Q         |         |         |         |      1+10       0.0000      0.00  Q         |         |         |         |      1+15       0.0000      0.00  Q         |         |         |         |      1+20       0.0000      0.00  Q         |         |         |         |      1+25       0.0002      0.03  Q         |         |         |         |      1+30       0.0016      0.19  Q         |         |         |         |      1+35       0.0043      0.40  |Q        |         |         |         |      1+40       0.0078      0.51  | Q       |         |         |         |      1+45       0.0119      0.59  | QV      |         |         |         |      1+50       0.0167      0.70  | Q  V    |         |         |         |      1+55       0.0228      0.89  |  Q  V   |         |         |         |      2+ 0       0.0315      1.26  |    Q   V|         |         |         |      2+ 5       0.0468      2.22  |       Q |   V     |         |         |      2+10       0.0764      4.30  |         |      Q  | V       |         |      2+15       0.1069      4.43  |         |      Q  |         | V       |      2+20       0.1218      2.16  |       Q |         |         |     V   |      2+25       0.1287      1.00  |  Q      |         |         |       V |      2+30       0.1321      0.49  |Q        |         |         |        V|      2+35       0.1329      0.12  Q         |         |         |        V|      2+40       0.1331      0.03  Q         |         |         |        V|      2+45       0.1332      0.01  Q         |         |         |        V|      2+50       0.1332      0.00  Q         |         |         |        V|      2+55       0.1332      0.00  Q         |         |         |        V|      3+ 0       0.1332      0.00  Q         |         |         |        V|      3+ 5       0.1332      0.00  Q         |         |         |        V|      3+10       0.1332      0.00  Q         |         |         |        V|      3+15       0.1332      0.00  Q         |         |         |        V|      3+20       0.1332      0.00  Q         |         |         |        V|      3+25       0.1332      0.00  Q         |         |         |         V  ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ U n i t   H y d r o g r a p h    A n a l y s i s Copyright (c) CIVILCADD/CIVILDESIGN, 1989 ‐ 2004, Version 7.0 Study date  07/24/24 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ San Bernardino County Synthetic Unit Hydrology Method Manual date ‐ August 1986 Program License Serial Number 5016 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ JN 4113 UNIT HYDROGRAPH 2 YEAR 24 HOUR STORM‐ Post‐DWEVELOPED CONDITION ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Storm Event Year = 2 Antecedent Moisture Condition = 2  English (in‐lb) Input Units Used  English Rainfall Data (Inches) Input Values Used  English Units used in output format Area averaged rainfall intensity isohyetal data: Sub‐Area        Duration        Isohyetal (Ac.)            (hours)         (In) Rainfall data for year 10      3.98            1           0.92 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Rainfall data for year 2      3.98            6           0.27 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Rainfall data for year 2      3.98           24           0.13 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Rainfall data for year 100      3.98            1           1.48 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Rainfall data for year 100      3.98            6           0.62 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Rainfall data for year 100      3.98           24           0.29 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ ******** Area‐averaged max loss rate, Fm ******** SCS curve  SCS curve     Area     Area     Fp(Fig C6)    Ap      Fm No.(AMCII) NO.(AMC 2)    (Ac.)    Fraction     (In/Hr)  (dec.)   (In/Hr)  32.0      32.0          3.98      1.000     0.978    0.130    0.127 Area‐averaged adjusted loss rate Fm (In/Hr) =  0.127 ********* Area‐Averaged low loss rate fraction, Yb ********** Area       Area          SCS CN    SCS CN      S     Pervious  (Ac.)      Fract         (AMC2)    (AMC2)           Yield Fr      0.52   0.130         32.0      32.0       2.61     0.000      3.46   0.870         98.0      98.0       0.20     0.647 Area‐averaged catchment yield fraction, Y =  0.563 Area‐averaged low loss fraction, Yb =  0.437 User entry of time of concentration  =   0.178 (hours) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Watershed area =       3.98(Ac.) Catchment Lag time =   0.142 hours Unit interval =   5.000 minutes Unit interval percentage of lag time = 58.5700 Hydrograph baseflow =     0.00(CFS) Average maximum watershed loss rate(Fm) =  0.127(In/Hr) Average low loss rate fraction (Yb) = 0.437 (decimal) VALLEY DEVELOPED S‐Graph Selected Computed peak 5‐minute rainfall =  0.192(In) Computed peak 30‐minute rainfall =  0.394(In) Specified peak 1‐hour rainfall =  0.520(In) Computed peak 3‐hour rainfall =  0.520(In) Specified peak 6‐hour rainfall =  0.521(In) Specified peak 24‐hour rainfall =  0.522(In) Note: user specified rainfall values used. Rainfall depth area reduction factors: Using a total area of       3.98(Ac.) (Ref: fig. E‐4) 5‐minute factor = 1.000     Adjusted rainfall =  0.192(In) 30‐minute factor = 1.000    Adjusted rainfall =  0.394(In) 1‐hour factor = 1.000       Adjusted rainfall =  0.520(In) 3‐hour factor = 1.000       Adjusted rainfall =  0.520(In) 6‐hour factor = 1.000       Adjusted rainfall =  0.521(In) 24‐hour factor = 1.000      Adjusted rainfall =  0.522(In) ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ U n i t  H y d r o g r a p h  +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Interval          'S' Graph          Unit Hydrograph Number            Mean values             ((CFS)) ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ (K =        48.13 (CFS))   1                6.220                   2.994   2               39.874                  16.198   3               80.296                  19.457   4               94.943                   7.050   5               98.536                   1.729   6              100.000                   0.705 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Total soil rain loss =      0.12(In) Total effective rainfall =      0.40(In) Peak flow rate in flood hydrograph =      4.43(CFS) ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++                     24 ‐ H O U R    S T O R M                R u n o f f      H y d r o g r a p h ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐             Hydrograph in   5   Minute intervals ((CFS)) ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐   Time(h+m) Volume Ac.Ft   Q(CFS)  0        2.5       5.0       7.5      10.0   ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐     0+ 5       0.0000      0.00  Q         |         |         |         |      0+10       0.0000      0.00  Q         |         |         |         |      0+15       0.0000      0.00  Q         |         |         |         |      0+20       0.0000      0.00  Q         |         |         |         |      0+25       0.0000      0.00  Q         |         |         |         |      0+30       0.0000      0.00  Q         |         |         |         |      0+35       0.0000      0.00  Q         |         |         |         |      0+40       0.0000      0.00  Q         |         |         |         |      0+45       0.0000      0.00  Q         |         |         |         |      0+50       0.0000      0.00  Q         |         |         |         |      0+55       0.0000      0.00  Q         |         |         |         |      1+ 0       0.0000      0.00  Q         |         |         |         |      1+ 5       0.0000      0.00  Q         |         |         |         |      1+10       0.0000      0.00  Q         |         |         |         |      1+15       0.0000      0.00  Q         |         |         |         |      1+20       0.0000      0.00  Q         |         |         |         |      1+25       0.0000      0.00  Q         |         |         |         |      1+30       0.0000      0.00  Q         |         |         |         |      1+35       0.0000      0.00  Q         |         |         |         |      1+40       0.0000      0.00  Q         |         |         |         |      1+45       0.0000      0.00  Q         |         |         |         |      1+50       0.0000      0.00  Q         |         |         |         |      1+55       0.0000      0.00  Q         |         |         |         |      2+ 0       0.0000      0.00  Q         |         |         |         |      2+ 5       0.0000      0.00  Q         |         |         |         |      2+10       0.0000      0.00  Q         |         |         |         |      2+15       0.0000      0.00  Q         |         |         |         |      2+20       0.0000      0.00  Q         |         |         |         |      2+25       0.0000      0.00  Q         |         |         |         |      2+30       0.0000      0.00  Q         |         |         |         |      2+35       0.0000      0.00  Q         |         |         |         |      2+40       0.0000      0.00  Q         |         |         |         |      2+45       0.0000      0.00  Q         |         |         |         |      2+50       0.0000      0.00  Q         |         |         |         |      2+55       0.0000      0.00  Q         |         |         |         |      3+ 0       0.0000      0.00  Q         |         |         |         |      3+ 5       0.0000      0.00  Q         |         |         |         |      3+10       0.0000      0.00  Q         |         |         |         |      3+15       0.0000      0.00  Q         |         |         |         |      3+20       0.0000      0.00  Q         |         |         |         |      3+25       0.0000      0.00  Q         |         |         |         |      3+30       0.0000      0.00  Q         |         |         |         |      3+35       0.0000      0.00  Q         |         |         |         |      3+40       0.0000      0.00  Q         |         |         |         |      3+45       0.0000      0.00  Q         |         |         |         |      3+50       0.0000      0.00  Q         |         |         |         |      3+55       0.0000      0.00  Q         |         |         |         |      4+ 0       0.0000      0.00  Q         |         |         |         |      4+ 5       0.0000      0.00  Q         |         |         |         |      4+10       0.0000      0.00  Q         |         |         |         |      4+15       0.0000      0.00  Q         |         |         |         |      4+20       0.0000      0.00  Q         |         |         |         |      4+25       0.0000      0.00  Q         |         |         |         |      4+30       0.0000      0.00  Q         |         |         |         |      4+35       0.0000      0.00  Q         |         |         |         |      4+40       0.0000      0.00  Q         |         |         |         |      4+45       0.0000      0.00  Q         |         |         |         |      4+50       0.0000      0.00  Q         |         |         |         |      4+55       0.0000      0.00  Q         |         |         |         |      5+ 0       0.0000      0.00  Q         |         |         |         |      5+ 5       0.0000      0.00  Q         |         |         |         |      5+10       0.0000      0.00  Q         |         |         |         |      5+15       0.0000      0.00  Q         |         |         |         |      5+20       0.0000      0.00  Q         |         |         |         |      5+25       0.0000      0.00  Q         |         |         |         |      5+30       0.0000      0.00  Q         |         |         |         |      5+35       0.0000      0.00  Q         |         |         |         |      5+40       0.0000      0.00  Q         |         |         |         |      5+45       0.0000      0.00  Q         |         |         |         |      5+50       0.0000      0.00  Q         |         |         |         |      5+55       0.0000      0.00  Q         |         |         |         |      6+ 0       0.0000      0.00  Q         |         |         |         |      6+ 5       0.0000      0.00  Q         |         |         |         |      6+10       0.0000      0.00  Q         |         |         |         |      6+15       0.0000      0.00  Q         |         |         |         |      6+20       0.0000      0.00  Q         |         |         |         |      6+25       0.0000      0.00  Q         |         |         |         |      6+30       0.0000      0.00  Q         |         |         |         |      6+35       0.0000      0.00  Q         |         |         |         |      6+40       0.0000      0.00  Q         |         |         |         |      6+45       0.0000      0.00  Q         |         |         |         |      6+50       0.0000      0.00  Q         |         |         |         |      6+55       0.0000      0.00  Q         |         |         |         |      7+ 0       0.0001      0.00  Q         |         |         |         |      7+ 5       0.0001      0.00  Q         |         |         |         |      7+10       0.0001      0.00  Q         |         |         |         |      7+15       0.0001      0.00  Q         |         |         |         |      7+20       0.0001      0.00  Q         |         |         |         |      7+25       0.0001      0.00  Q         |         |         |         |      7+30       0.0001      0.00  Q         |         |         |         |      7+35       0.0001      0.00  Q         |         |         |         |      7+40       0.0001      0.00  Q         |         |         |         |      7+45       0.0001      0.00  Q         |         |         |         |      7+50       0.0001      0.00  Q         |         |         |         |      7+55       0.0001      0.00  Q         |         |         |         |      8+ 0       0.0001      0.00  Q         |         |         |         |      8+ 5       0.0001      0.00  Q         |         |         |         |      8+10       0.0001      0.00  Q         |         |         |         |      8+15       0.0001      0.00  Q         |         |         |         |      8+20       0.0001      0.00  Q         |         |         |         |      8+25       0.0001      0.00  Q         |         |         |         |      8+30       0.0001      0.00  Q         |         |         |         |      8+35       0.0001      0.00  Q         |         |         |         |      8+40       0.0001      0.00  Q         |         |         |         |      8+45       0.0001      0.00  Q         |         |         |         |      8+50       0.0001      0.00  Q         |         |         |         |      8+55       0.0001      0.00  Q         |         |         |         |      9+ 0       0.0001      0.00  Q         |         |         |         |      9+ 5       0.0001      0.00  Q         |         |         |         |      9+10       0.0001      0.00  Q         |         |         |         |      9+15       0.0001      0.00  Q         |         |         |         |      9+20       0.0001      0.00  Q         |         |         |         |      9+25       0.0001      0.00  Q         |         |         |         |      9+30       0.0001      0.00  Q         |         |         |         |      9+35       0.0001      0.00  Q         |         |         |         |      9+40       0.0001      0.00  Q         |         |         |         |      9+45       0.0001      0.00  Q         |         |         |         |      9+50       0.0001      0.00  Q         |         |         |         |      9+55       0.0001      0.00  Q         |         |         |         |     10+ 0       0.0001      0.00  Q         |         |         |         |     10+ 5       0.0001      0.00  Q         |         |         |         |     10+10       0.0001      0.00  Q         |         |         |         |     10+15       0.0001      0.00  Q         |         |         |         |     10+20       0.0001      0.00  Q         |         |         |         |     10+25       0.0001      0.00  Q         |         |         |         |     10+30       0.0001      0.00  Q         |         |         |         |     10+35       0.0001      0.00  Q         |         |         |         |     10+40       0.0001      0.00  Q         |         |         |         |     10+45       0.0001      0.00  Q         |         |         |         |     10+50       0.0001      0.00  Q         |         |         |         |     10+55       0.0001      0.00  Q         |         |         |         |     11+ 0       0.0001      0.00  Q         |         |         |         |     11+ 5       0.0001      0.00  Q         |         |         |         |     11+10       0.0001      0.00  Q         |         |         |         |     11+15       0.0001      0.00  Q         |         |         |         |     11+20       0.0001      0.00  Q         |         |         |         |     11+25       0.0001      0.00  Q         |         |         |         |     11+30       0.0001      0.00  Q         |         |         |         |     11+35       0.0001      0.00  Q         |         |         |         |     11+40       0.0001      0.00  Q         |         |         |         |     11+45       0.0001      0.00  Q         |         |         |         |     11+50       0.0001      0.00  Q         |         |         |         |     11+55       0.0001      0.00  Q         |         |         |         |     12+ 0       0.0001      0.00  Q         |         |         |         |     12+ 5       0.0001      0.00  Q         |         |         |         |     12+10       0.0001      0.00  Q         |         |         |         |     12+15       0.0001      0.00  Q         |         |         |         |     12+20       0.0001      0.00  Q         |         |         |         |     12+25       0.0001      0.00  Q         |         |         |         |     12+30       0.0001      0.00  Q         |         |         |         |     12+35       0.0001      0.00  Q         |         |         |         |     12+40       0.0001      0.00  Q         |         |         |         |     12+45       0.0002      0.00  Q         |         |         |         |     12+50       0.0002      0.00  Q         |         |         |         |     12+55       0.0002      0.00  Q         |         |         |         |     13+ 0       0.0002      0.00  Q         |         |         |         |     13+ 5       0.0002      0.00  Q         |         |         |         |     13+10       0.0002      0.00  Q         |         |         |         |     13+15       0.0002      0.00  Q         |         |         |         |     13+20       0.0002      0.00  Q         |         |         |         |     13+25       0.0002      0.00  Q         |         |         |         |     13+30       0.0002      0.00  Q         |         |         |         |     13+35       0.0002      0.00  Q         |         |         |         |     13+40       0.0002      0.00  Q         |         |         |         |     13+45       0.0002      0.00  Q         |         |         |         |     13+50       0.0002      0.00  Q         |         |         |         |     13+55       0.0002      0.00  Q         |         |         |         |     14+ 0       0.0002      0.00  Q         |         |         |         |     14+ 5       0.0002      0.00  Q         |         |         |         |     14+10       0.0002      0.00  Q         |         |         |         |     14+15       0.0002      0.00  Q         |         |         |         |     14+20       0.0002      0.00  Q         |         |         |         |     14+25       0.0002      0.00  Q         |         |         |         |     14+30       0.0003      0.00  Q         |         |         |         |     14+35       0.0003      0.00  Q         |         |         |         |     14+40       0.0003      0.00  Q         |         |         |         |     14+45       0.0003      0.00  Q         |         |         |         |     14+50       0.0003      0.00  Q         |         |         |         |     14+55       0.0003      0.00  Q         |         |         |         |     15+ 0       0.0003      0.00  Q         |         |         |         |     15+ 5       0.0003      0.00  Q         |         |         |         |     15+10       0.0003      0.00  Q         |         |         |         |     15+15       0.0003      0.00  Q         |         |         |         |     15+20       0.0003      0.00  Q         |         |         |         |     15+25       0.0005      0.03  Q         |         |         |         |     15+30       0.0018      0.19  Q         |         |         |         |     15+35       0.0046      0.40  |Q        |         |         |         |     15+40       0.0081      0.51  | Q       |         |         |         |     15+45       0.0121      0.59  | QV      |         |         |         |     15+50       0.0170      0.70  | Q  V    |         |         |         |     15+55       0.0231      0.89  |  Q  V   |         |         |         |     16+ 0       0.0318      1.26  |    Q   V|         |         |         |     16+ 5       0.0470      2.22  |       Q |   V     |         |         |     16+10       0.0767      4.30  |         |      Q  | V       |         |     16+15       0.1072      4.43  |         |      Q  |         | V       |     16+20       0.1221      2.16  |       Q |         |         |     V   |     16+25       0.1289      1.00  |  Q      |         |         |       V |     16+30       0.1323      0.49  |Q        |         |         |        V|     16+35       0.1332      0.12  Q         |         |         |        V|     16+40       0.1334      0.03  Q         |         |         |        V|     16+45       0.1335      0.01  Q         |         |         |        V|     16+50       0.1335      0.00  Q         |         |         |        V|     16+55       0.1335      0.00  Q         |         |         |        V|     17+ 0       0.1335      0.00  Q         |         |         |        V|     17+ 5       0.1335      0.00  Q         |         |         |        V|     17+10       0.1335      0.00  Q         |         |         |        V|     17+15       0.1335      0.00  Q         |         |         |        V|     17+20       0.1335      0.00  Q         |         |         |        V|     17+25       0.1335      0.00  Q         |         |         |        V|     17+30       0.1335      0.00  Q         |         |         |        V|     17+35       0.1335      0.00  Q         |         |         |        V|     17+40       0.1335      0.00  Q         |         |         |        V|     17+45       0.1335      0.00  Q         |         |         |        V|     17+50       0.1335      0.00  Q         |         |         |        V|     17+55       0.1335      0.00  Q         |         |         |        V|     18+ 0       0.1335      0.00  Q         |         |         |        V|     18+ 5       0.1335      0.00  Q         |         |         |        V|     18+10       0.1335      0.00  Q         |         |         |        V|     18+15       0.1335      0.00  Q         |         |         |        V|     18+20       0.1335      0.00  Q         |         |         |        V|     18+25       0.1335      0.00  Q         |         |         |        V|     18+30       0.1335      0.00  Q         |         |         |        V|     18+35       0.1335      0.00  Q         |         |         |        V|     18+40       0.1335      0.00  Q         |         |         |        V|     18+45       0.1335      0.00  Q         |         |         |        V|     18+50       0.1335      0.00  Q         |         |         |        V|     18+55       0.1335      0.00  Q         |         |         |        V|     19+ 0       0.1335      0.00  Q         |         |         |        V|     19+ 5       0.1335      0.00  Q         |         |         |        V|     19+10       0.1335      0.00  Q         |         |         |        V|     19+15       0.1335      0.00  Q         |         |         |        V|     19+20       0.1335      0.00  Q         |         |         |        V|     19+25       0.1335      0.00  Q         |         |         |        V|     19+30       0.1335      0.00  Q         |         |         |        V|     19+35       0.1335      0.00  Q         |         |         |        V|     19+40       0.1335      0.00  Q         |         |         |        V|     19+45       0.1335      0.00  Q         |         |         |        V|     19+50       0.1335      0.00  Q         |         |         |        V|     19+55       0.1335      0.00  Q         |         |         |        V|     20+ 0       0.1335      0.00  Q         |         |         |        V|     20+ 5       0.1335      0.00  Q         |         |         |        V|     20+10       0.1335      0.00  Q         |         |         |        V|     20+15       0.1335      0.00  Q         |         |         |        V|     20+20       0.1336      0.00  Q         |         |         |        V|     20+25       0.1336      0.00  Q         |         |         |        V|     20+30       0.1336      0.00  Q         |         |         |        V|     20+35       0.1336      0.00  Q         |         |         |        V|     20+40       0.1336      0.00  Q         |         |         |        V|     20+45       0.1336      0.00  Q         |         |         |        V|     20+50       0.1336      0.00  Q         |         |         |        V|     20+55       0.1336      0.00  Q         |         |         |        V|     21+ 0       0.1336      0.00  Q         |         |         |        V|     21+ 5       0.1336      0.00  Q         |         |         |        V|     21+10       0.1336      0.00  Q         |         |         |        V|     21+15       0.1336      0.00  Q         |         |         |        V|     21+20       0.1336      0.00  Q         |         |         |        V|     21+25       0.1336      0.00  Q         |         |         |        V|     21+30       0.1336      0.00  Q         |         |         |        V|     21+35       0.1336      0.00  Q         |         |         |        V|     21+40       0.1336      0.00  Q         |         |         |        V|     21+45       0.1336      0.00  Q         |         |         |        V|     21+50       0.1336      0.00  Q         |         |         |        V|     21+55       0.1336      0.00  Q         |         |         |        V|     22+ 0       0.1336      0.00  Q         |         |         |        V|     22+ 5       0.1336      0.00  Q         |         |         |        V|     22+10       0.1336      0.00  Q         |         |         |        V|     22+15       0.1336      0.00  Q         |         |         |        V|     22+20       0.1336      0.00  Q         |         |         |        V|     22+25       0.1336      0.00  Q         |         |         |        V|     22+30       0.1336      0.00  Q         |         |         |        V|     22+35       0.1336      0.00  Q         |         |         |        V|     22+40       0.1336      0.00  Q         |         |         |        V|     22+45       0.1336      0.00  Q         |         |         |        V|     22+50       0.1336      0.00  Q         |         |         |        V|     22+55       0.1336      0.00  Q         |         |         |        V|     23+ 0       0.1336      0.00  Q         |         |         |        V|     23+ 5       0.1336      0.00  Q         |         |         |        V|     23+10       0.1336      0.00  Q         |         |         |        V|     23+15       0.1336      0.00  Q         |         |         |        V|     23+20       0.1336      0.00  Q         |         |         |        V|     23+25       0.1336      0.00  Q         |         |         |        V|     23+30       0.1336      0.00  Q         |         |         |        V|     23+35       0.1336      0.00  Q         |         |         |        V|     23+40       0.1336      0.00  Q         |         |         |        V|     23+45       0.1336      0.00  Q         |         |         |        V|     23+50       0.1336      0.00  Q         |         |         |        V|     23+55       0.1336      0.00  Q         |         |         |        V|     24+ 0       0.1336      0.00  Q         |         |         |        V|     24+ 5       0.1336      0.00  Q         |         |         |        V|     24+10       0.1336      0.00  Q         |         |         |        V|     24+15       0.1336      0.00  Q         |         |         |        V|     24+20       0.1336      0.00  Q         |         |         |        V|     24+25       0.1336      0.00  Q         |         |         |         V  ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ U n i t   H y d r o g r a p h    A n a l y s i s Copyright (c) CIVILCADD/CIVILDESIGN, 1989 ‐ 2004, Version 7.0 Study date  06/28/24 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ San Bernardino County Synthetic Unit Hydrology Method Manual date ‐ August 1986 Program License Serial Number 5016 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ JN 4113 UNIT HYDROGRAPH 10 YEAR 3 HOUR STORM  POST‐DEVELOPED ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Storm Event Year = 10 Antecedent Moisture Condition = 2  English (in‐lb) Input Units Used  English Rainfall Data (Inches) Input Values Used  English Units used in output format Area averaged rainfall intensity isohyetal data: Sub‐Area        Duration        Isohyetal (Ac.)            (hours)         (In) Rainfall data for year 10      3.98            1           0.92 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Rainfall data for year 10      3.98            6           0.41 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Rainfall data for year 10      3.98           24           0.19 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ ******** Area‐averaged max loss rate, Fm ******** SCS curve  SCS curve     Area     Area     Fp(Fig C6)    Ap      Fm No.(AMCII) NO.(AMC 2)    (Ac.)    Fraction     (In/Hr)  (dec.)   (In/Hr)  32.0      32.0          3.98      1.000     0.978    0.130    0.127 Area‐averaged adjusted loss rate Fm (In/Hr) =  0.127 ********* Area‐Averaged low loss rate fraction, Yb ********** Area       Area          SCS CN    SCS CN      S     Pervious  (Ac.)      Fract         (AMC2)    (AMC2)           Yield Fr      0.52   0.130         32.0      32.0       4.59     0.000      3.46   0.870         98.0      98.0       0.20     0.775 Area‐averaged catchment yield fraction, Y =  0.674 Area‐averaged low loss fraction, Yb =  0.326 User entry of time of concentration  =   0.176 (hours) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Watershed area =       3.98(Ac.) Catchment Lag time =   0.141 hours Unit interval =   5.000 minutes Unit interval percentage of lag time = 59.2125 Hydrograph baseflow =     0.00(CFS) Average maximum watershed loss rate(Fm) =  0.127(In/Hr) Average low loss rate fraction (Yb) = 0.326 (decimal) VALLEY DEVELOPED S‐Graph Selected Computed peak 5‐minute rainfall =  0.339(In) Computed peak 30‐minute rainfall =  0.693(In) Specified peak 1‐hour rainfall =  0.915(In) Computed peak 3‐hour rainfall =  0.915(In) Specified peak 6‐hour rainfall =  0.916(In) Specified peak 24‐hour rainfall =  0.917(In) Note: user specified rainfall values used. Rainfall depth area reduction factors: Using a total area of       3.98(Ac.) (Ref: fig. E‐4) 5‐minute factor = 1.000     Adjusted rainfall =  0.339(In) 30‐minute factor = 1.000    Adjusted rainfall =  0.693(In) 1‐hour factor = 1.000       Adjusted rainfall =  0.915(In) 3‐hour factor = 1.000       Adjusted rainfall =  0.915(In) 6‐hour factor = 1.000       Adjusted rainfall =  0.916(In) 24‐hour factor = 1.000      Adjusted rainfall =  0.917(In) ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ U n i t  H y d r o g r a p h  +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Interval          'S' Graph          Unit Hydrograph Number            Mean values             ((CFS)) ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ (K =        48.13 (CFS))   1                6.354                   3.058   2               40.669                  16.517   3               80.945                  19.386   4               95.214                   6.868   5               98.595                   1.627   6              100.000                   0.676 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Total soil rain loss =      0.13(In) Total effective rainfall =      0.79(In) Peak flow rate in flood hydrograph =      8.16(CFS) ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++                     3 ‐ H O U R    S T O R M                R u n o f f      H y d r o g r a p h ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐             Hydrograph in   5   Minute intervals ((CFS)) ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐   Time(h+m) Volume Ac.Ft   Q(CFS)  0        2.5       5.0       7.5      10.0   ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐     0+ 5       0.0000      0.00  Q         |         |         |         |      0+10       0.0000      0.00  Q         |         |         |         |      0+15       0.0000      0.00  Q         |         |         |         |      0+20       0.0000      0.00  Q         |         |         |         |      0+25       0.0000      0.00  Q         |         |         |         |      0+30       0.0000      0.00  Q         |         |         |         |      0+35       0.0000      0.00  Q         |         |         |         |      0+40       0.0000      0.00  Q         |         |         |         |      0+45       0.0000      0.00  Q         |         |         |         |      0+50       0.0000      0.00  Q         |         |         |         |      0+55       0.0000      0.00  Q         |         |         |         |      1+ 0       0.0000      0.00  Q         |         |         |         |      1+ 5       0.0000      0.00  Q         |         |         |         |      1+10       0.0000      0.00  Q         |         |         |         |      1+15       0.0000      0.00  Q         |         |         |         |      1+20       0.0000      0.00  Q         |         |         |         |      1+25       0.0005      0.06  Q         |         |         |         |      1+30       0.0033      0.42  VQ        |         |         |         |      1+35       0.0093      0.86  |V Q      |         |         |         |      1+40       0.0170      1.12  | V Q     |         |         |         |      1+45       0.0261      1.32  |  V Q    |         |         |         |      1+50       0.0370      1.58  |    VQ   |         |         |         |      1+55       0.0504      1.95  |      Q  |         |         |         |      2+ 0       0.0684      2.61  |         Q         |         |         |      2+ 5       0.0981      4.32  |         |    V Q  |         |         |      2+10       0.1535      8.04  |         |         |  V      | Q       |      2+15       0.2097      8.16  |         |         |         | Q       |      2+20       0.2380      4.12  |         |     Q   |         |     V   |      2+25       0.2520      2.02  |       Q |         |         |       V |      2+30       0.2589      1.01  |   Q     |         |         |        V|      2+35       0.2607      0.26  |Q        |         |         |        V|      2+40       0.2612      0.06  Q         |         |         |        V|      2+45       0.2613      0.02  Q         |         |         |        V|      2+50       0.2613      0.00  Q         |         |         |        V|      2+55       0.2613      0.00  Q         |         |         |        V|      3+ 0       0.2613      0.00  Q         |         |         |        V|      3+ 5       0.2613      0.00  Q         |         |         |        V|      3+10       0.2613      0.00  Q         |         |         |        V|      3+15       0.2613      0.00  Q         |         |         |        V|      3+20       0.2613      0.00  Q         |         |         |        V|      3+25       0.2613      0.00  Q         |         |         |         V  ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ U n i t   H y d r o g r a p h    A n a l y s i s Copyright (c) CIVILCADD/CIVILDESIGN, 1989 ‐ 2004, Version 7.0 Study date  06/28/24 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ San Bernardino County Synthetic Unit Hydrology Method Manual date ‐ August 1986 Program License Serial Number 5016 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ JN 4113 UNIT HYDROGRAPH 10 YEAR 24 HOUR STORM  POST‐DEVELOPED ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Storm Event Year = 10 Antecedent Moisture Condition = 2  English (in‐lb) Input Units Used  English Rainfall Data (Inches) Input Values Used  English Units used in output format Area averaged rainfall intensity isohyetal data: Sub‐Area        Duration        Isohyetal (Ac.)            (hours)         (In) Rainfall data for year 10      3.98            1           0.92 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Rainfall data for year 10      3.98            6           0.41 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Rainfall data for year 10      3.98           24           0.19 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ ******** Area‐averaged max loss rate, Fm ******** SCS curve  SCS curve     Area     Area     Fp(Fig C6)    Ap      Fm No.(AMCII) NO.(AMC 2)    (Ac.)    Fraction     (In/Hr)  (dec.)   (In/Hr)  32.0      32.0          3.98      1.000     0.978    0.130    0.127 Area‐averaged adjusted loss rate Fm (In/Hr) =  0.127 ********* Area‐Averaged low loss rate fraction, Yb ********** Area       Area          SCS CN    SCS CN      S     Pervious  (Ac.)      Fract         (AMC2)    (AMC2)           Yield Fr      0.52   0.130         32.0      32.0       4.59     0.000      3.46   0.870         98.0      98.0       0.20     0.775 Area‐averaged catchment yield fraction, Y =  0.674 Area‐averaged low loss fraction, Yb =  0.326 User entry of time of concentration  =   0.176 (hours) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Watershed area =       3.98(Ac.) Catchment Lag time =   0.141 hours Unit interval =   5.000 minutes Unit interval percentage of lag time = 59.2125 Hydrograph baseflow =     0.00(CFS) Average maximum watershed loss rate(Fm) =  0.127(In/Hr) Average low loss rate fraction (Yb) = 0.326 (decimal) VALLEY DEVELOPED S‐Graph Selected Computed peak 5‐minute rainfall =  0.339(In) Computed peak 30‐minute rainfall =  0.693(In) Specified peak 1‐hour rainfall =  0.915(In) Computed peak 3‐hour rainfall =  0.915(In) Specified peak 6‐hour rainfall =  0.916(In) Specified peak 24‐hour rainfall =  0.917(In) Note: user specified rainfall values used. Rainfall depth area reduction factors: Using a total area of       3.98(Ac.) (Ref: fig. E‐4) 5‐minute factor = 1.000     Adjusted rainfall =  0.339(In) 30‐minute factor = 1.000    Adjusted rainfall =  0.693(In) 1‐hour factor = 1.000       Adjusted rainfall =  0.915(In) 3‐hour factor = 1.000       Adjusted rainfall =  0.915(In) 6‐hour factor = 1.000       Adjusted rainfall =  0.916(In) 24‐hour factor = 1.000      Adjusted rainfall =  0.917(In) ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ U n i t  H y d r o g r a p h  +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Interval          'S' Graph          Unit Hydrograph Number            Mean values             ((CFS)) ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ (K =        48.13 (CFS))   1                6.354                   3.058   2               40.669                  16.517   3               80.945                  19.386   4               95.214                   6.868   5               98.595                   1.627   6              100.000                   0.676 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Total soil rain loss =      0.13(In) Total effective rainfall =      0.79(In) Peak flow rate in flood hydrograph =      8.16(CFS) ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++                     24 ‐ H O U R    S T O R M                R u n o f f      H y d r o g r a p h ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐             Hydrograph in   5   Minute intervals ((CFS)) ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐   Time(h+m) Volume Ac.Ft   Q(CFS)  0        2.5       5.0       7.5      10.0   ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐     0+ 5       0.0000      0.00  Q         |         |         |         |      0+10       0.0000      0.00  Q         |         |         |         |      0+15       0.0000      0.00  Q         |         |         |         |      0+20       0.0000      0.00  Q         |         |         |         |      0+25       0.0000      0.00  Q         |         |         |         |      0+30       0.0000      0.00  Q         |         |         |         |      0+35       0.0000      0.00  Q         |         |         |         |      0+40       0.0000      0.00  Q         |         |         |         |      0+45       0.0000      0.00  Q         |         |         |         |      0+50       0.0000      0.00  Q         |         |         |         |      0+55       0.0000      0.00  Q         |         |         |         |      1+ 0       0.0000      0.00  Q         |         |         |         |      1+ 5       0.0000      0.00  Q         |         |         |         |      1+10       0.0000      0.00  Q         |         |         |         |      1+15       0.0000      0.00  Q         |         |         |         |      1+20       0.0000      0.00  Q         |         |         |         |      1+25       0.0000      0.00  Q         |         |         |         |      1+30       0.0000      0.00  Q         |         |         |         |      1+35       0.0000      0.00  Q         |         |         |         |      1+40       0.0000      0.00  Q         |         |         |         |      1+45       0.0000      0.00  Q         |         |         |         |      1+50       0.0000      0.00  Q         |         |         |         |      1+55       0.0000      0.00  Q         |         |         |         |      2+ 0       0.0000      0.00  Q         |         |         |         |      2+ 5       0.0000      0.00  Q         |         |         |         |      2+10       0.0000      0.00  Q         |         |         |         |      2+15       0.0000      0.00  Q         |         |         |         |      2+20       0.0000      0.00  Q         |         |         |         |      2+25       0.0000      0.00  Q         |         |         |         |      2+30       0.0000      0.00  Q         |         |         |         |      2+35       0.0000      0.00  Q         |         |         |         |      2+40       0.0000      0.00  Q         |         |         |         |      2+45       0.0000      0.00  Q         |         |         |         |      2+50       0.0000      0.00  Q         |         |         |         |      2+55       0.0000      0.00  Q         |         |         |         |      3+ 0       0.0000      0.00  Q         |         |         |         |      3+ 5       0.0000      0.00  Q         |         |         |         |      3+10       0.0000      0.00  Q         |         |         |         |      3+15       0.0000      0.00  Q         |         |         |         |      3+20       0.0000      0.00  Q         |         |         |         |      3+25       0.0000      0.00  Q         |         |         |         |      3+30       0.0000      0.00  Q         |         |         |         |      3+35       0.0000      0.00  Q         |         |         |         |      3+40       0.0000      0.00  Q         |         |         |         |      3+45       0.0000      0.00  Q         |         |         |         |      3+50       0.0000      0.00  Q         |         |         |         |      3+55       0.0000      0.00  Q         |         |         |         |      4+ 0       0.0000      0.00  Q         |         |         |         |      4+ 5       0.0000      0.00  Q         |         |         |         |      4+10       0.0000      0.00  Q         |         |         |         |      4+15       0.0000      0.00  Q         |         |         |         |      4+20       0.0000      0.00  Q         |         |         |         |      4+25       0.0000      0.00  Q         |         |         |         |      4+30       0.0000      0.00  Q         |         |         |         |      4+35       0.0000      0.00  Q         |         |         |         |      4+40       0.0000      0.00  Q         |         |         |         |      4+45       0.0000      0.00  Q         |         |         |         |      4+50       0.0000      0.00  Q         |         |         |         |      4+55       0.0000      0.00  Q         |         |         |         |      5+ 0       0.0000      0.00  Q         |         |         |         |      5+ 5       0.0000      0.00  Q         |         |         |         |      5+10       0.0000      0.00  Q         |         |         |         |      5+15       0.0000      0.00  Q         |         |         |         |      5+20       0.0000      0.00  Q         |         |         |         |      5+25       0.0000      0.00  Q         |         |         |         |      5+30       0.0000      0.00  Q         |         |         |         |      5+35       0.0000      0.00  Q         |         |         |         |      5+40       0.0000      0.00  Q         |         |         |         |      5+45       0.0000      0.00  Q         |         |         |         |      5+50       0.0000      0.00  Q         |         |         |         |      5+55       0.0000      0.00  Q         |         |         |         |      6+ 0       0.0000      0.00  Q         |         |         |         |      6+ 5       0.0001      0.00  Q         |         |         |         |      6+10       0.0001      0.00  Q         |         |         |         |      6+15       0.0001      0.00  Q         |         |         |         |      6+20       0.0001      0.00  Q         |         |         |         |      6+25       0.0001      0.00  Q         |         |         |         |      6+30       0.0001      0.00  Q         |         |         |         |      6+35       0.0001      0.00  Q         |         |         |         |      6+40       0.0001      0.00  Q         |         |         |         |      6+45       0.0001      0.00  Q         |         |         |         |      6+50       0.0001      0.00  Q         |         |         |         |      6+55       0.0001      0.00  Q         |         |         |         |      7+ 0       0.0001      0.00  Q         |         |         |         |      7+ 5       0.0001      0.00  Q         |         |         |         |      7+10       0.0001      0.00  Q         |         |         |         |      7+15       0.0001      0.00  Q         |         |         |         |      7+20       0.0001      0.00  Q         |         |         |         |      7+25       0.0001      0.00  Q         |         |         |         |      7+30       0.0001      0.00  Q         |         |         |         |      7+35       0.0001      0.00  Q         |         |         |         |      7+40       0.0001      0.00  Q         |         |         |         |      7+45       0.0001      0.00  Q         |         |         |         |      7+50       0.0001      0.00  Q         |         |         |         |      7+55       0.0001      0.00  Q         |         |         |         |      8+ 0       0.0001      0.00  Q         |         |         |         |      8+ 5       0.0001      0.00  Q         |         |         |         |      8+10       0.0001      0.00  Q         |         |         |         |      8+15       0.0001      0.00  Q         |         |         |         |      8+20       0.0001      0.00  Q         |         |         |         |      8+25       0.0001      0.00  Q         |         |         |         |      8+30       0.0001      0.00  Q         |         |         |         |      8+35       0.0001      0.00  Q         |         |         |         |      8+40       0.0001      0.00  Q         |         |         |         |      8+45       0.0001      0.00  Q         |         |         |         |      8+50       0.0001      0.00  Q         |         |         |         |      8+55       0.0001      0.00  Q         |         |         |         |      9+ 0       0.0001      0.00  Q         |         |         |         |      9+ 5       0.0001      0.00  Q         |         |         |         |      9+10       0.0001      0.00  Q         |         |         |         |      9+15       0.0001      0.00  Q         |         |         |         |      9+20       0.0001      0.00  Q         |         |         |         |      9+25       0.0001      0.00  Q         |         |         |         |      9+30       0.0001      0.00  Q         |         |         |         |      9+35       0.0001      0.00  Q         |         |         |         |      9+40       0.0001      0.00  Q         |         |         |         |      9+45       0.0001      0.00  Q         |         |         |         |      9+50       0.0001      0.00  Q         |         |         |         |      9+55       0.0001      0.00  Q         |         |         |         |     10+ 0       0.0001      0.00  Q         |         |         |         |     10+ 5       0.0001      0.00  Q         |         |         |         |     10+10       0.0001      0.00  Q         |         |         |         |     10+15       0.0001      0.00  Q         |         |         |         |     10+20       0.0001      0.00  Q         |         |         |         |     10+25       0.0001      0.00  Q         |         |         |         |     10+30       0.0001      0.00  Q         |         |         |         |     10+35       0.0001      0.00  Q         |         |         |         |     10+40       0.0001      0.00  Q         |         |         |         |     10+45       0.0001      0.00  Q         |         |         |         |     10+50       0.0001      0.00  Q         |         |         |         |     10+55       0.0001      0.00  Q         |         |         |         |     11+ 0       0.0001      0.00  Q         |         |         |         |     11+ 5       0.0001      0.00  Q         |         |         |         |     11+10       0.0001      0.00  Q         |         |         |         |     11+15       0.0001      0.00  Q         |         |         |         |     11+20       0.0001      0.00  Q         |         |         |         |     11+25       0.0001      0.00  Q         |         |         |         |     11+30       0.0001      0.00  Q         |         |         |         |     11+35       0.0001      0.00  Q         |         |         |         |     11+40       0.0001      0.00  Q         |         |         |         |     11+45       0.0001      0.00  Q         |         |         |         |     11+50       0.0001      0.00  Q         |         |         |         |     11+55       0.0001      0.00  Q         |         |         |         |     12+ 0       0.0001      0.00  Q         |         |         |         |     12+ 5       0.0001      0.00  Q         |         |         |         |     12+10       0.0002      0.00  Q         |         |         |         |     12+15       0.0002      0.00  Q         |         |         |         |     12+20       0.0002      0.00  Q         |         |         |         |     12+25       0.0002      0.00  Q         |         |         |         |     12+30       0.0002      0.00  Q         |         |         |         |     12+35       0.0002      0.00  Q         |         |         |         |     12+40       0.0002      0.00  Q         |         |         |         |     12+45       0.0002      0.00  Q         |         |         |         |     12+50       0.0002      0.00  Q         |         |         |         |     12+55       0.0002      0.00  Q         |         |         |         |     13+ 0       0.0002      0.00  Q         |         |         |         |     13+ 5       0.0002      0.00  Q         |         |         |         |     13+10       0.0002      0.00  Q         |         |         |         |     13+15       0.0002      0.00  Q         |         |         |         |     13+20       0.0002      0.00  Q         |         |         |         |     13+25       0.0002      0.00  Q         |         |         |         |     13+30       0.0002      0.00  Q         |         |         |         |     13+35       0.0002      0.00  Q         |         |         |         |     13+40       0.0003      0.00  Q         |         |         |         |     13+45       0.0003      0.00  Q         |         |         |         |     13+50       0.0003      0.00  Q         |         |         |         |     13+55       0.0003      0.00  Q         |         |         |         |     14+ 0       0.0003      0.00  Q         |         |         |         |     14+ 5       0.0003      0.00  Q         |         |         |         |     14+10       0.0003      0.00  Q         |         |         |         |     14+15       0.0003      0.00  Q         |         |         |         |     14+20       0.0003      0.00  Q         |         |         |         |     14+25       0.0003      0.00  Q         |         |         |         |     14+30       0.0003      0.00  Q         |         |         |         |     14+35       0.0003      0.00  Q         |         |         |         |     14+40       0.0003      0.00  Q         |         |         |         |     14+45       0.0003      0.00  Q         |         |         |         |     14+50       0.0003      0.00  Q         |         |         |         |     14+55       0.0003      0.00  Q         |         |         |         |     15+ 0       0.0003      0.00  Q         |         |         |         |     15+ 5       0.0003      0.00  Q         |         |         |         |     15+10       0.0003      0.00  Q         |         |         |         |     15+15       0.0003      0.00  Q         |         |         |         |     15+20       0.0003      0.00  Q         |         |         |         |     15+25       0.0008      0.06  Q         |         |         |         |     15+30       0.0036      0.42  VQ        |         |         |         |     15+35       0.0096      0.86  |V Q      |         |         |         |     15+40       0.0173      1.12  | V Q     |         |         |         |     15+45       0.0264      1.32  |   VQ    |         |         |         |     15+50       0.0372      1.58  |    VQ   |         |         |         |     15+55       0.0507      1.95  |      Q  |         |         |         |     16+ 0       0.0687      2.61  |         Q         |         |         |     16+ 5       0.0984      4.32  |         |    V Q  |         |         |     16+10       0.1538      8.04  |         |         |  V      | Q       |     16+15       0.2099      8.16  |         |         |         | Q       |     16+20       0.2383      4.12  |         |     Q   |         |     V   |     16+25       0.2523      2.02  |       Q |         |         |       V |     16+30       0.2592      1.01  |   Q     |         |         |        V|     16+35       0.2610      0.26  |Q        |         |         |        V|     16+40       0.2615      0.06  Q         |         |         |        V|     16+45       0.2616      0.02  Q         |         |         |        V|     16+50       0.2616      0.00  Q         |         |         |        V|     16+55       0.2616      0.00  Q         |         |         |        V|     17+ 0       0.2616      0.00  Q         |         |         |        V|     17+ 5       0.2616      0.00  Q         |         |         |        V|     17+10       0.2616      0.00  Q         |         |         |        V|     17+15       0.2616      0.00  Q         |         |         |        V|     17+20       0.2616      0.00  Q         |         |         |        V|     17+25       0.2616      0.00  Q         |         |         |        V|     17+30       0.2616      0.00  Q         |         |         |        V|     17+35       0.2616      0.00  Q         |         |         |        V|     17+40       0.2616      0.00  Q         |         |         |        V|     17+45       0.2616      0.00  Q         |         |         |        V|     17+50       0.2616      0.00  Q         |         |         |        V|     17+55       0.2617      0.00  Q         |         |         |        V|     18+ 0       0.2617      0.00  Q         |         |         |        V|     18+ 5       0.2617      0.00  Q         |         |         |        V|     18+10       0.2617      0.00  Q         |         |         |        V|     18+15       0.2617      0.00  Q         |         |         |        V|     18+20       0.2617      0.00  Q         |         |         |        V|     18+25       0.2617      0.00  Q         |         |         |        V|     18+30       0.2617      0.00  Q         |         |         |        V|     18+35       0.2617      0.00  Q         |         |         |        V|     18+40       0.2617      0.00  Q         |         |         |        V|     18+45       0.2617      0.00  Q         |         |         |        V|     18+50       0.2617      0.00  Q         |         |         |        V|     18+55       0.2617      0.00  Q         |         |         |        V|     19+ 0       0.2617      0.00  Q         |         |         |        V|     19+ 5       0.2617      0.00  Q         |         |         |        V|     19+10       0.2617      0.00  Q         |         |         |        V|     19+15       0.2617      0.00  Q         |         |         |        V|     19+20       0.2617      0.00  Q         |         |         |        V|     19+25       0.2617      0.00  Q         |         |         |        V|     19+30       0.2617      0.00  Q         |         |         |        V|     19+35       0.2617      0.00  Q         |         |         |        V|     19+40       0.2617      0.00  Q         |         |         |        V|     19+45       0.2617      0.00  Q         |         |         |        V|     19+50       0.2617      0.00  Q         |         |         |        V|     19+55       0.2617      0.00  Q         |         |         |        V|     20+ 0       0.2617      0.00  Q         |         |         |        V|     20+ 5       0.2617      0.00  Q         |         |         |        V|     20+10       0.2617      0.00  Q         |         |         |        V|     20+15       0.2617      0.00  Q         |         |         |        V|     20+20       0.2617      0.00  Q         |         |         |        V|     20+25       0.2617      0.00  Q         |         |         |        V|     20+30       0.2617      0.00  Q         |         |         |        V|     20+35       0.2617      0.00  Q         |         |         |        V|     20+40       0.2617      0.00  Q         |         |         |        V|     20+45       0.2617      0.00  Q         |         |         |        V|     20+50       0.2617      0.00  Q         |         |         |        V|     20+55       0.2617      0.00  Q         |         |         |        V|     21+ 0       0.2617      0.00  Q         |         |         |        V|     21+ 5       0.2617      0.00  Q         |         |         |        V|     21+10       0.2617      0.00  Q         |         |         |        V|     21+15       0.2617      0.00  Q         |         |         |        V|     21+20       0.2617      0.00  Q         |         |         |        V|     21+25       0.2617      0.00  Q         |         |         |        V|     21+30       0.2617      0.00  Q         |         |         |        V|     21+35       0.2617      0.00  Q         |         |         |        V|     21+40       0.2617      0.00  Q         |         |         |        V|     21+45       0.2617      0.00  Q         |         |         |        V|     21+50       0.2617      0.00  Q         |         |         |        V|     21+55       0.2617      0.00  Q         |         |         |        V|     22+ 0       0.2617      0.00  Q         |         |         |        V|     22+ 5       0.2617      0.00  Q         |         |         |        V|     22+10       0.2617      0.00  Q         |         |         |        V|     22+15       0.2617      0.00  Q         |         |         |        V|     22+20       0.2617      0.00  Q         |         |         |        V|     22+25       0.2617      0.00  Q         |         |         |        V|     22+30       0.2617      0.00  Q         |         |         |        V|     22+35       0.2617      0.00  Q         |         |         |        V|     22+40       0.2617      0.00  Q         |         |         |        V|     22+45       0.2617      0.00  Q         |         |         |        V|     22+50       0.2617      0.00  Q         |         |         |        V|     22+55       0.2617      0.00  Q         |         |         |        V|     23+ 0       0.2617      0.00  Q         |         |         |        V|     23+ 5       0.2617      0.00  Q         |         |         |        V|     23+10       0.2617      0.00  Q         |         |         |        V|     23+15       0.2617      0.00  Q         |         |         |        V|     23+20       0.2617      0.00  Q         |         |         |        V|     23+25       0.2617      0.00  Q         |         |         |        V|     23+30       0.2617      0.00  Q         |         |         |        V|     23+35       0.2617      0.00  Q         |         |         |        V|     23+40       0.2617      0.00  Q         |         |         |        V|     23+45       0.2617      0.00  Q         |         |         |        V|     23+50       0.2617      0.00  Q         |         |         |        V|     23+55       0.2617      0.00  Q         |         |         |        V|     24+ 0       0.2617      0.00  Q         |         |         |        V|     24+ 5       0.2617      0.00  Q         |         |         |        V|     24+10       0.2617      0.00  Q         |         |         |        V|     24+15       0.2617      0.00  Q         |         |         |        V|     24+20       0.2617      0.00  Q         |         |         |        V|     24+25       0.2617      0.00  Q         |         |         |        V|  ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ U n i t   H y d r o g r a p h    A n a l y s i s Copyright (c) CIVILCADD/CIVILDESIGN, 1989 ‐ 2004, Version 7.0 Study date  07/24/24 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ San Bernardino County Synthetic Unit Hydrology Method Manual date ‐ August 1986 Program License Serial Number 5016 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ JN 4113 UNIT HYDROGRAPH 25 YEAR 3 HOUR STORM  POST‐DEVELOPED ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Storm Event Year = 25 Antecedent Moisture Condition = 2  English (in‐lb) Input Units Used  English Rainfall Data (Inches) Input Values Used  English Units used in output format Area averaged rainfall intensity isohyetal data: Sub‐Area        Duration        Isohyetal (Ac.)            (hours)         (In) Rainfall data for year 10      3.98            1           0.92 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Rainfall data for year 2      3.98            6           0.27 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Rainfall data for year 2      3.98           24           0.13 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Rainfall data for year 100      3.98            1           1.48 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Rainfall data for year 100      3.98            6           0.62 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Rainfall data for year 100      3.98           24           0.29 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ ******** Area‐averaged max loss rate, Fm ******** SCS curve  SCS curve     Area     Area     Fp(Fig C6)    Ap      Fm No.(AMCII) NO.(AMC 2)    (Ac.)    Fraction     (In/Hr)  (dec.)   (In/Hr)  32.0      32.0          3.98      1.000     0.978    0.130    0.127 Area‐averaged adjusted loss rate Fm (In/Hr) =  0.127 ********* Area‐Averaged low loss rate fraction, Yb ********** Area       Area          SCS CN    SCS CN      S     Pervious  (Ac.)      Fract         (AMC2)    (AMC2)           Yield Fr      0.52   0.130         32.0      32.0       5.71     0.000      3.46   0.870         98.0      98.0       0.20     0.813 Area‐averaged catchment yield fraction, Y =  0.708 Area‐averaged low loss fraction, Yb =  0.292 User entry of time of concentration  =   0.175 (hours) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Watershed area =       3.98(Ac.) Catchment Lag time =   0.140 hours Unit interval =   5.000 minutes Unit interval percentage of lag time = 59.4219 Hydrograph baseflow =     0.00(CFS) Average maximum watershed loss rate(Fm) =  0.127(In/Hr) Average low loss rate fraction (Yb) = 0.292 (decimal) VALLEY DEVELOPED S‐Graph Selected Computed peak 5‐minute rainfall =  0.422(In) Computed peak 30‐minute rainfall =  0.864(In) Specified peak 1‐hour rainfall =  1.140(In) Computed peak 3‐hour rainfall =  1.140(In) Specified peak 6‐hour rainfall =  1.141(In) Specified peak 24‐hour rainfall =  1.142(In) Note: user specified rainfall values used. Rainfall depth area reduction factors: Using a total area of       3.98(Ac.) (Ref: fig. E‐4) 5‐minute factor = 1.000     Adjusted rainfall =  0.422(In) 30‐minute factor = 1.000    Adjusted rainfall =  0.864(In) 1‐hour factor = 1.000       Adjusted rainfall =  1.140(In) 3‐hour factor = 1.000       Adjusted rainfall =  1.140(In) 6‐hour factor = 1.000       Adjusted rainfall =  1.141(In) 24‐hour factor = 1.000      Adjusted rainfall =  1.142(In) ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ U n i t  H y d r o g r a p h  +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Interval          'S' Graph          Unit Hydrograph Number            Mean values             ((CFS)) ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ (K =        48.13 (CFS))   1                6.397                   3.079   2               40.927                  16.620   3               81.152                  19.361   4               95.299                   6.810   5               98.613                   1.595   6              100.000                   0.668 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Total soil rain loss =      0.13(In) Total effective rainfall =      1.01(In) Peak flow rate in flood hydrograph =     10.27(CFS) ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++                     3 ‐ H O U R    S T O R M                R u n o f f      H y d r o g r a p h ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐             Hydrograph in   5   Minute intervals ((CFS)) ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐   Time(h+m) Volume Ac.Ft   Q(CFS)  0        5.0      10.0      15.0      20.0   ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐     0+ 5       0.0000      0.00  Q         |         |         |         |      0+10       0.0000      0.00  Q         |         |         |         |      0+15       0.0000      0.00  Q         |         |         |         |      0+20       0.0000      0.00  Q         |         |         |         |      0+25       0.0000      0.00  Q         |         |         |         |      0+30       0.0000      0.00  Q         |         |         |         |      0+35       0.0000      0.00  Q         |         |         |         |      0+40       0.0000      0.00  Q         |         |         |         |      0+45       0.0000      0.00  Q         |         |         |         |      0+50       0.0000      0.00  Q         |         |         |         |      0+55       0.0000      0.00  Q         |         |         |         |      1+ 0       0.0000      0.00  Q         |         |         |         |      1+ 5       0.0000      0.00  Q         |         |         |         |      1+10       0.0000      0.00  Q         |         |         |         |      1+15       0.0000      0.00  Q         |         |         |         |      1+20       0.0000      0.00  Q         |         |         |         |      1+25       0.0006      0.09  Q         |         |         |         |      1+30       0.0045      0.57  VQ        |         |         |         |      1+35       0.0126      1.17  |VQ       |         |         |         |      1+40       0.0230      1.51  | VQ      |         |         |         |      1+45       0.0352      1.77  |  QV     |         |         |         |      1+50       0.0496      2.10  |   QV    |         |         |         |      1+55       0.0672      2.55  |    Q  V |         |         |         |      2+ 0       0.0905      3.39  |     Q   V         |         |         |      2+ 5       0.1285      5.52  |         |Q   V    |         |         |      2+10       0.1986     10.17  |         |         Q  V      |         |      2+15       0.2693     10.27  |         |         Q         | V       |      2+20       0.3054      5.24  |         Q         |         |     V   |      2+25       0.3234      2.62  |    Q    |         |         |       V |      2+30       0.3326      1.33  | Q       |         |         |        V|      2+35       0.3350      0.34  Q         |         |         |        V|      2+40       0.3355      0.08  Q         |         |         |        V|      2+45       0.3357      0.02  Q         |         |         |        V|      2+50       0.3357      0.00  Q         |         |         |        V|      2+55       0.3357      0.00  Q         |         |         |        V|      3+ 0       0.3357      0.00  Q         |         |         |        V|      3+ 5       0.3357      0.00  Q         |         |         |        V|      3+10       0.3357      0.00  Q         |         |         |        V|      3+15       0.3357      0.00  Q         |         |         |        V|      3+20       0.3357      0.00  Q         |         |         |        V|      3+25       0.3357      0.00  Q         |         |         |        V|  ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ U n i t   H y d r o g r a p h    A n a l y s i s Copyright (c) CIVILCADD/CIVILDESIGN, 1989 ‐ 2004, Version 7.0 Study date  07/24/24 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ San Bernardino County Synthetic Unit Hydrology Method Manual date ‐ August 1986 Program License Serial Number 5016 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ JN 4113 UNIT HYDROGRAPH 25 YEAR 24 HOUR STORM  POST‐DEVELOPED ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Storm Event Year = 25 Antecedent Moisture Condition = 2  English (in‐lb) Input Units Used  English Rainfall Data (Inches) Input Values Used  English Units used in output format Area averaged rainfall intensity isohyetal data: Sub‐Area        Duration        Isohyetal (Ac.)            (hours)         (In) Rainfall data for year 10      3.98            1           0.92 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Rainfall data for year 2      3.98            6           0.27 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Rainfall data for year 2      3.98           24           0.13 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Rainfall data for year 100      3.98            1           1.48 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Rainfall data for year 100      3.98            6           0.62 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Rainfall data for year 100      3.98           24           0.29 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ ******** Area‐averaged max loss rate, Fm ******** SCS curve  SCS curve     Area     Area     Fp(Fig C6)    Ap      Fm No.(AMCII) NO.(AMC 2)    (Ac.)    Fraction     (In/Hr)  (dec.)   (In/Hr)  32.0      32.0          3.98      1.000     0.978    0.130    0.127 Area‐averaged adjusted loss rate Fm (In/Hr) =  0.127 ********* Area‐Averaged low loss rate fraction, Yb ********** Area       Area          SCS CN    SCS CN      S     Pervious  (Ac.)      Fract         (AMC2)    (AMC2)           Yield Fr      0.52   0.130         32.0      32.0       5.71     0.000      3.46   0.870         98.0      98.0       0.20     0.813 Area‐averaged catchment yield fraction, Y =  0.708 Area‐averaged low loss fraction, Yb =  0.292 User entry of time of concentration  =   0.175 (hours) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Watershed area =       3.98(Ac.) Catchment Lag time =   0.140 hours Unit interval =   5.000 minutes Unit interval percentage of lag time = 59.4219 Hydrograph baseflow =     0.00(CFS) Average maximum watershed loss rate(Fm) =  0.127(In/Hr) Average low loss rate fraction (Yb) = 0.292 (decimal) VALLEY DEVELOPED S‐Graph Selected Computed peak 5‐minute rainfall =  0.422(In) Computed peak 30‐minute rainfall =  0.864(In) Specified peak 1‐hour rainfall =  1.140(In) Computed peak 3‐hour rainfall =  1.140(In) Specified peak 6‐hour rainfall =  1.141(In) Specified peak 24‐hour rainfall =  1.142(In) Note: user specified rainfall values used. Rainfall depth area reduction factors: Using a total area of       3.98(Ac.) (Ref: fig. E‐4) 5‐minute factor = 1.000     Adjusted rainfall =  0.422(In) 30‐minute factor = 1.000    Adjusted rainfall =  0.864(In) 1‐hour factor = 1.000       Adjusted rainfall =  1.140(In) 3‐hour factor = 1.000       Adjusted rainfall =  1.140(In) 6‐hour factor = 1.000       Adjusted rainfall =  1.141(In) 24‐hour factor = 1.000      Adjusted rainfall =  1.142(In) ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ U n i t  H y d r o g r a p h  +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Interval          'S' Graph          Unit Hydrograph Number            Mean values             ((CFS)) ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ (K =        48.13 (CFS))   1                6.397                   3.079   2               40.927                  16.620   3               81.152                  19.361   4               95.299                   6.810   5               98.613                   1.595   6              100.000                   0.668 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Total soil rain loss =      0.13(In) Total effective rainfall =      1.01(In) Peak flow rate in flood hydrograph =     10.27(CFS) ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++                     24 ‐ H O U R    S T O R M                R u n o f f      H y d r o g r a p h ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐             Hydrograph in   5   Minute intervals ((CFS)) ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐   Time(h+m) Volume Ac.Ft   Q(CFS)  0        5.0      10.0      15.0      20.0   ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐     0+ 5       0.0000      0.00  Q         |         |         |         |      0+10       0.0000      0.00  Q         |         |         |         |      0+15       0.0000      0.00  Q         |         |         |         |      0+20       0.0000      0.00  Q         |         |         |         |      0+25       0.0000      0.00  Q         |         |         |         |      0+30       0.0000      0.00  Q         |         |         |         |      0+35       0.0000      0.00  Q         |         |         |         |      0+40       0.0000      0.00  Q         |         |         |         |      0+45       0.0000      0.00  Q         |         |         |         |      0+50       0.0000      0.00  Q         |         |         |         |      0+55       0.0000      0.00  Q         |         |         |         |      1+ 0       0.0000      0.00  Q         |         |         |         |      1+ 5       0.0000      0.00  Q         |         |         |         |      1+10       0.0000      0.00  Q         |         |         |         |      1+15       0.0000      0.00  Q         |         |         |         |      1+20       0.0000      0.00  Q         |         |         |         |      1+25       0.0000      0.00  Q         |         |         |         |      1+30       0.0000      0.00  Q         |         |         |         |      1+35       0.0000      0.00  Q         |         |         |         |      1+40       0.0000      0.00  Q         |         |         |         |      1+45       0.0000      0.00  Q         |         |         |         |      1+50       0.0000      0.00  Q         |         |         |         |      1+55       0.0000      0.00  Q         |         |         |         |      2+ 0       0.0000      0.00  Q         |         |         |         |      2+ 5       0.0000      0.00  Q         |         |         |         |      2+10       0.0000      0.00  Q         |         |         |         |      2+15       0.0000      0.00  Q         |         |         |         |      2+20       0.0000      0.00  Q         |         |         |         |      2+25       0.0000      0.00  Q         |         |         |         |      2+30       0.0000      0.00  Q         |         |         |         |      2+35       0.0000      0.00  Q         |         |         |         |      2+40       0.0000      0.00  Q         |         |         |         |      2+45       0.0000      0.00  Q         |         |         |         |      2+50       0.0000      0.00  Q         |         |         |         |      2+55       0.0000      0.00  Q         |         |         |         |      3+ 0       0.0000      0.00  Q         |         |         |         |      3+ 5       0.0000      0.00  Q         |         |         |         |      3+10       0.0000      0.00  Q         |         |         |         |      3+15       0.0000      0.00  Q         |         |         |         |      3+20       0.0000      0.00  Q         |         |         |         |      3+25       0.0000      0.00  Q         |         |         |         |      3+30       0.0000      0.00  Q         |         |         |         |      3+35       0.0000      0.00  Q         |         |         |         |      3+40       0.0000      0.00  Q         |         |         |         |      3+45       0.0000      0.00  Q         |         |         |         |      3+50       0.0000      0.00  Q         |         |         |         |      3+55       0.0000      0.00  Q         |         |         |         |      4+ 0       0.0000      0.00  Q         |         |         |         |      4+ 5       0.0000      0.00  Q         |         |         |         |      4+10       0.0000      0.00  Q         |         |         |         |      4+15       0.0000      0.00  Q         |         |         |         |      4+20       0.0000      0.00  Q         |         |         |         |      4+25       0.0000      0.00  Q         |         |         |         |      4+30       0.0000      0.00  Q         |         |         |         |      4+35       0.0000      0.00  Q         |         |         |         |      4+40       0.0000      0.00  Q         |         |         |         |      4+45       0.0000      0.00  Q         |         |         |         |      4+50       0.0000      0.00  Q         |         |         |         |      4+55       0.0000      0.00  Q         |         |         |         |      5+ 0       0.0000      0.00  Q         |         |         |         |      5+ 5       0.0000      0.00  Q         |         |         |         |      5+10       0.0000      0.00  Q         |         |         |         |      5+15       0.0000      0.00  Q         |         |         |         |      5+20       0.0000      0.00  Q         |         |         |         |      5+25       0.0000      0.00  Q         |         |         |         |      5+30       0.0000      0.00  Q         |         |         |         |      5+35       0.0000      0.00  Q         |         |         |         |      5+40       0.0000      0.00  Q         |         |         |         |      5+45       0.0000      0.00  Q         |         |         |         |      5+50       0.0000      0.00  Q         |         |         |         |      5+55       0.0001      0.00  Q         |         |         |         |      6+ 0       0.0001      0.00  Q         |         |         |         |      6+ 5       0.0001      0.00  Q         |         |         |         |      6+10       0.0001      0.00  Q         |         |         |         |      6+15       0.0001      0.00  Q         |         |         |         |      6+20       0.0001      0.00  Q         |         |         |         |      6+25       0.0001      0.00  Q         |         |         |         |      6+30       0.0001      0.00  Q         |         |         |         |      6+35       0.0001      0.00  Q         |         |         |         |      6+40       0.0001      0.00  Q         |         |         |         |      6+45       0.0001      0.00  Q         |         |         |         |      6+50       0.0001      0.00  Q         |         |         |         |      6+55       0.0001      0.00  Q         |         |         |         |      7+ 0       0.0001      0.00  Q         |         |         |         |      7+ 5       0.0001      0.00  Q         |         |         |         |      7+10       0.0001      0.00  Q         |         |         |         |      7+15       0.0001      0.00  Q         |         |         |         |      7+20       0.0001      0.00  Q         |         |         |         |      7+25       0.0001      0.00  Q         |         |         |         |      7+30       0.0001      0.00  Q         |         |         |         |      7+35       0.0001      0.00  Q         |         |         |         |      7+40       0.0001      0.00  Q         |         |         |         |      7+45       0.0001      0.00  Q         |         |         |         |      7+50       0.0001      0.00  Q         |         |         |         |      7+55       0.0001      0.00  Q         |         |         |         |      8+ 0       0.0001      0.00  Q         |         |         |         |      8+ 5       0.0001      0.00  Q         |         |         |         |      8+10       0.0001      0.00  Q         |         |         |         |      8+15       0.0001      0.00  Q         |         |         |         |      8+20       0.0001      0.00  Q         |         |         |         |      8+25       0.0001      0.00  Q         |         |         |         |      8+30       0.0001      0.00  Q         |         |         |         |      8+35       0.0001      0.00  Q         |         |         |         |      8+40       0.0001      0.00  Q         |         |         |         |      8+45       0.0001      0.00  Q         |         |         |         |      8+50       0.0001      0.00  Q         |         |         |         |      8+55       0.0001      0.00  Q         |         |         |         |      9+ 0       0.0001      0.00  Q         |         |         |         |      9+ 5       0.0001      0.00  Q         |         |         |         |      9+10       0.0001      0.00  Q         |         |         |         |      9+15       0.0001      0.00  Q         |         |         |         |      9+20       0.0001      0.00  Q         |         |         |         |      9+25       0.0001      0.00  Q         |         |         |         |      9+30       0.0001      0.00  Q         |         |         |         |      9+35       0.0001      0.00  Q         |         |         |         |      9+40       0.0001      0.00  Q         |         |         |         |      9+45       0.0001      0.00  Q         |         |         |         |      9+50       0.0001      0.00  Q         |         |         |         |      9+55       0.0001      0.00  Q         |         |         |         |     10+ 0       0.0001      0.00  Q         |         |         |         |     10+ 5       0.0001      0.00  Q         |         |         |         |     10+10       0.0001      0.00  Q         |         |         |         |     10+15       0.0001      0.00  Q         |         |         |         |     10+20       0.0001      0.00  Q         |         |         |         |     10+25       0.0001      0.00  Q         |         |         |         |     10+30       0.0001      0.00  Q         |         |         |         |     10+35       0.0001      0.00  Q         |         |         |         |     10+40       0.0001      0.00  Q         |         |         |         |     10+45       0.0001      0.00  Q         |         |         |         |     10+50       0.0001      0.00  Q         |         |         |         |     10+55       0.0001      0.00  Q         |         |         |         |     11+ 0       0.0001      0.00  Q         |         |         |         |     11+ 5       0.0001      0.00  Q         |         |         |         |     11+10       0.0001      0.00  Q         |         |         |         |     11+15       0.0001      0.00  Q         |         |         |         |     11+20       0.0001      0.00  Q         |         |         |         |     11+25       0.0001      0.00  Q         |         |         |         |     11+30       0.0001      0.00  Q         |         |         |         |     11+35       0.0001      0.00  Q         |         |         |         |     11+40       0.0001      0.00  Q         |         |         |         |     11+45       0.0001      0.00  Q         |         |         |         |     11+50       0.0001      0.00  Q         |         |         |         |     11+55       0.0002      0.00  Q         |         |         |         |     12+ 0       0.0002      0.00  Q         |         |         |         |     12+ 5       0.0002      0.00  Q         |         |         |         |     12+10       0.0002      0.00  Q         |         |         |         |     12+15       0.0002      0.00  Q         |         |         |         |     12+20       0.0002      0.00  Q         |         |         |         |     12+25       0.0002      0.00  Q         |         |         |         |     12+30       0.0002      0.00  Q         |         |         |         |     12+35       0.0002      0.00  Q         |         |         |         |     12+40       0.0002      0.00  Q         |         |         |         |     12+45       0.0002      0.00  Q         |         |         |         |     12+50       0.0002      0.00  Q         |         |         |         |     12+55       0.0002      0.00  Q         |         |         |         |     13+ 0       0.0002      0.00  Q         |         |         |         |     13+ 5       0.0002      0.00  Q         |         |         |         |     13+10       0.0002      0.00  Q         |         |         |         |     13+15       0.0002      0.00  Q         |         |         |         |     13+20       0.0002      0.00  Q         |         |         |         |     13+25       0.0002      0.00  Q         |         |         |         |     13+30       0.0003      0.00  Q         |         |         |         |     13+35       0.0003      0.00  Q         |         |         |         |     13+40       0.0003      0.00  Q         |         |         |         |     13+45       0.0003      0.00  Q         |         |         |         |     13+50       0.0003      0.00  Q         |         |         |         |     13+55       0.0003      0.00  Q         |         |         |         |     14+ 0       0.0003      0.00  Q         |         |         |         |     14+ 5       0.0003      0.00  Q         |         |         |         |     14+10       0.0003      0.00  Q         |         |         |         |     14+15       0.0003      0.00  Q         |         |         |         |     14+20       0.0003      0.00  Q         |         |         |         |     14+25       0.0003      0.00  Q         |         |         |         |     14+30       0.0003      0.00  Q         |         |         |         |     14+35       0.0003      0.00  Q         |         |         |         |     14+40       0.0003      0.00  Q         |         |         |         |     14+45       0.0003      0.00  Q         |         |         |         |     14+50       0.0003      0.00  Q         |         |         |         |     14+55       0.0003      0.00  Q         |         |         |         |     15+ 0       0.0003      0.00  Q         |         |         |         |     15+ 5       0.0003      0.00  Q         |         |         |         |     15+10       0.0003      0.00  Q         |         |         |         |     15+15       0.0003      0.00  Q         |         |         |         |     15+20       0.0003      0.00  Q         |         |         |         |     15+25       0.0009      0.09  Q         |         |         |         |     15+30       0.0048      0.57  VQ        |         |         |         |     15+35       0.0129      1.17  |VQ       |         |         |         |     15+40       0.0233      1.51  | VQ      |         |         |         |     15+45       0.0355      1.77  |  QV     |         |         |         |     15+50       0.0499      2.10  |   QV    |         |         |         |     15+55       0.0675      2.55  |    Q  V |         |         |         |     16+ 0       0.0908      3.39  |     Q   V         |         |         |     16+ 5       0.1289      5.52  |         |Q   V    |         |         |     16+10       0.1989     10.17  |         |         Q  V      |         |     16+15       0.2697     10.27  |         |         Q         | V       |     16+20       0.3057      5.24  |         Q         |         |     V   |     16+25       0.3238      2.62  |    Q    |         |         |       V |     16+30       0.3329      1.33  | Q       |         |         |        V|     16+35       0.3353      0.34  Q         |         |         |        V|     16+40       0.3358      0.08  Q         |         |         |        V|     16+45       0.3360      0.02  Q         |         |         |        V|     16+50       0.3360      0.00  Q         |         |         |        V|     16+55       0.3360      0.00  Q         |         |         |        V|     17+ 0       0.3360      0.00  Q         |         |         |        V|     17+ 5       0.3360      0.00  Q         |         |         |        V|     17+10       0.3360      0.00  Q         |         |         |        V|     17+15       0.3360      0.00  Q         |         |         |        V|     17+20       0.3360      0.00  Q         |         |         |        V|     17+25       0.3360      0.00  Q         |         |         |        V|     17+30       0.3360      0.00  Q         |         |         |        V|     17+35       0.3360      0.00  Q         |         |         |        V|     17+40       0.3360      0.00  Q         |         |         |        V|     17+45       0.3361      0.00  Q         |         |         |        V|     17+50       0.3361      0.00  Q         |         |         |        V|     17+55       0.3361      0.00  Q         |         |         |        V|     18+ 0       0.3361      0.00  Q         |         |         |        V|     18+ 5       0.3361      0.00  Q         |         |         |        V|     18+10       0.3361      0.00  Q         |         |         |        V|     18+15       0.3361      0.00  Q         |         |         |        V|     18+20       0.3361      0.00  Q         |         |         |        V|     18+25       0.3361      0.00  Q         |         |         |        V|     18+30       0.3361      0.00  Q         |         |         |        V|     18+35       0.3361      0.00  Q         |         |         |        V|     18+40       0.3361      0.00  Q         |         |         |        V|     18+45       0.3361      0.00  Q         |         |         |        V|     18+50       0.3361      0.00  Q         |         |         |        V|     18+55       0.3361      0.00  Q         |         |         |        V|     19+ 0       0.3361      0.00  Q         |         |         |        V|     19+ 5       0.3361      0.00  Q         |         |         |        V|     19+10       0.3361      0.00  Q         |         |         |        V|     19+15       0.3361      0.00  Q         |         |         |        V|     19+20       0.3361      0.00  Q         |         |         |        V|     19+25       0.3361      0.00  Q         |         |         |        V|     19+30       0.3361      0.00  Q         |         |         |        V|     19+35       0.3361      0.00  Q         |         |         |        V|     19+40       0.3361      0.00  Q         |         |         |        V|     19+45       0.3361      0.00  Q         |         |         |        V|     19+50       0.3361      0.00  Q         |         |         |        V|     19+55       0.3361      0.00  Q         |         |         |        V|     20+ 0       0.3361      0.00  Q         |         |         |        V|     20+ 5       0.3361      0.00  Q         |         |         |        V|     20+10       0.3361      0.00  Q         |         |         |        V|     20+15       0.3361      0.00  Q         |         |         |        V|     20+20       0.3361      0.00  Q         |         |         |        V|     20+25       0.3361      0.00  Q         |         |         |        V|     20+30       0.3361      0.00  Q         |         |         |        V|     20+35       0.3361      0.00  Q         |         |         |        V|     20+40       0.3361      0.00  Q         |         |         |        V|     20+45       0.3361      0.00  Q         |         |         |        V|     20+50       0.3361      0.00  Q         |         |         |        V|     20+55       0.3361      0.00  Q         |         |         |        V|     21+ 0       0.3361      0.00  Q         |         |         |        V|     21+ 5       0.3361      0.00  Q         |         |         |        V|     21+10       0.3361      0.00  Q         |         |         |        V|     21+15       0.3361      0.00  Q         |         |         |        V|     21+20       0.3361      0.00  Q         |         |         |        V|     21+25       0.3361      0.00  Q         |         |         |        V|     21+30       0.3361      0.00  Q         |         |         |        V|     21+35       0.3361      0.00  Q         |         |         |        V|     21+40       0.3361      0.00  Q         |         |         |        V|     21+45       0.3361      0.00  Q         |         |         |        V|     21+50       0.3361      0.00  Q         |         |         |        V|     21+55       0.3361      0.00  Q         |         |         |        V|     22+ 0       0.3361      0.00  Q         |         |         |        V|     22+ 5       0.3361      0.00  Q         |         |         |        V|     22+10       0.3361      0.00  Q         |         |         |        V|     22+15       0.3361      0.00  Q         |         |         |        V|     22+20       0.3361      0.00  Q         |         |         |        V|     22+25       0.3361      0.00  Q         |         |         |        V|     22+30       0.3361      0.00  Q         |         |         |        V|     22+35       0.3361      0.00  Q         |         |         |        V|     22+40       0.3361      0.00  Q         |         |         |        V|     22+45       0.3361      0.00  Q         |         |         |        V|     22+50       0.3361      0.00  Q         |         |         |        V|     22+55       0.3362      0.00  Q         |         |         |        V|     23+ 0       0.3362      0.00  Q         |         |         |        V|     23+ 5       0.3362      0.00  Q         |         |         |        V|     23+10       0.3362      0.00  Q         |         |         |        V|     23+15       0.3362      0.00  Q         |         |         |        V|     23+20       0.3362      0.00  Q         |         |         |        V|     23+25       0.3362      0.00  Q         |         |         |        V|     23+30       0.3362      0.00  Q         |         |         |        V|     23+35       0.3362      0.00  Q         |         |         |        V|     23+40       0.3362      0.00  Q         |         |         |        V|     23+45       0.3362      0.00  Q         |         |         |        V|     23+50       0.3362      0.00  Q         |         |         |        V|     23+55       0.3362      0.00  Q         |         |         |        V|     24+ 0       0.3362      0.00  Q         |         |         |        V|     24+ 5       0.3362      0.00  Q         |         |         |        V|     24+10       0.3362      0.00  Q         |         |         |        V|     24+15       0.3362      0.00  Q         |         |         |        V|     24+20       0.3362      0.00  Q         |         |         |        V|     24+25       0.3362      0.00  Q         |         |         |        V|  ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ U n i t   H y d r o g r a p h    A n a l y s i s Copyright (c) CIVILCADD/CIVILDESIGN, 1989 ‐ 2004, Version 7.0 Study date  06/28/24 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ San Bernardino County Synthetic Unit Hydrology Method Manual date ‐ August 1986 Program License Serial Number 5016 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ JN 4113 UNIT HYDROGRAPH 100 YEAR 3 HOUR STORM  POST‐DEVELOPED ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Storm Event Year = 100 Antecedent Moisture Condition = 3  English (in‐lb) Input Units Used  English Rainfall Data (Inches) Input Values Used  English Units used in output format Area averaged rainfall intensity isohyetal data: Sub‐Area        Duration        Isohyetal (Ac.)            (hours)         (In) Rainfall data for year 100      3.98            1           1.48 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Rainfall data for year 100      3.98            6           0.62 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Rainfall data for year 100      3.98           24           0.29 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ ******** Area‐averaged max loss rate, Fm ******** SCS curve  SCS curve     Area     Area     Fp(Fig C6)    Ap      Fm No.(AMCII) NO.(AMC 3)    (Ac.)    Fraction     (In/Hr)  (dec.)   (In/Hr)  32.0      52.0          3.98      1.000     0.785    0.130    0.102 Area‐averaged adjusted loss rate Fm (In/Hr) =  0.102 ********* Area‐Averaged low loss rate fraction, Yb ********** Area       Area          SCS CN    SCS CN      S     Pervious  (Ac.)      Fract         (AMC2)    (AMC3)           Yield Fr      0.52   0.130         32.0      52.0       7.41     0.000      3.46   0.870         98.0      98.0       0.20     0.852 Area‐averaged catchment yield fraction, Y =  0.741 Area‐averaged low loss fraction, Yb =  0.259 User entry of time of concentration  =   0.175 (hours) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Watershed area =       3.98(Ac.) Catchment Lag time =   0.140 hours Unit interval =   5.000 minutes Unit interval percentage of lag time = 59.6329 Hydrograph baseflow =     0.00(CFS) Average maximum watershed loss rate(Fm) =  0.102(In/Hr) Average low loss rate fraction (Yb) = 0.259 (decimal) VALLEY DEVELOPED S‐Graph Selected Computed peak 5‐minute rainfall =  0.548(In) Computed peak 30‐minute rainfall =  1.122(In) Specified peak 1‐hour rainfall =  1.480(In) Computed peak 3‐hour rainfall =  1.480(In) Specified peak 6‐hour rainfall =  1.481(In) Specified peak 24‐hour rainfall =  1.482(In) Note: user specified rainfall values used. Rainfall depth area reduction factors: Using a total area of       3.98(Ac.) (Ref: fig. E‐4) 5‐minute factor = 1.000     Adjusted rainfall =  0.548(In) 30‐minute factor = 1.000    Adjusted rainfall =  1.121(In) 1‐hour factor = 1.000       Adjusted rainfall =  1.480(In) 3‐hour factor = 1.000       Adjusted rainfall =  1.480(In) 6‐hour factor = 1.000       Adjusted rainfall =  1.481(In) 24‐hour factor = 1.000      Adjusted rainfall =  1.482(In) ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ U n i t  H y d r o g r a p h  +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Interval          'S' Graph          Unit Hydrograph Number            Mean values             ((CFS)) ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ (K =        48.13 (CFS))   1                6.442                   3.101   2               41.188                  16.724   3               81.358                  19.335   4               95.384                   6.751   5               98.630                   1.562   6              100.000                   0.659 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Total soil rain loss =      0.10(In) Total effective rainfall =      1.38(In) Peak flow rate in flood hydrograph =     13.57(CFS) ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++                     3 ‐ H O U R    S T O R M                R u n o f f      H y d r o g r a p h ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐             Hydrograph in   5   Minute intervals ((CFS)) ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐   Time(h+m) Volume Ac.Ft   Q(CFS)  0        5.0      10.0      15.0      20.0   ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐     0+ 5       0.0000      0.00  Q         |         |         |         |      0+10       0.0000      0.00  Q         |         |         |         |      0+15       0.0000      0.00  Q         |         |         |         |      0+20       0.0000      0.00  Q         |         |         |         |      0+25       0.0000      0.00  Q         |         |         |         |      0+30       0.0000      0.00  Q         |         |         |         |      0+35       0.0000      0.00  Q         |         |         |         |      0+40       0.0000      0.00  Q         |         |         |         |      0+45       0.0000      0.00  Q         |         |         |         |      0+50       0.0000      0.00  Q         |         |         |         |      0+55       0.0000      0.00  Q         |         |         |         |      1+ 0       0.0000      0.00  Q         |         |         |         |      1+ 5       0.0000      0.00  Q         |         |         |         |      1+10       0.0000      0.00  Q         |         |         |         |      1+15       0.0000      0.00  Q         |         |         |         |      1+20       0.0000      0.00  Q         |         |         |         |      1+25       0.0009      0.13  Q         |         |         |         |      1+30       0.0067      0.84  VQ        |         |         |         |      1+35       0.0186      1.73  |V Q      |         |         |         |      1+40       0.0338      2.20  | V Q     |         |         |         |      1+45       0.0514      2.55  |   VQ    |         |         |         |      1+50       0.0719      2.98  |    QV   |         |         |         |      1+55       0.0965      3.57  |      QV |         |         |         |      2+ 0       0.1285      4.66  |        Q|V        |         |         |      2+ 5       0.1798      7.44  |         |   QV    |         |         |      2+10       0.2728     13.50  |         |         |  V   Q  |         |      2+15       0.3663     13.57  |         |         |      Q  | V       |      2+20       0.4146      7.02  |         |   Q     |         |     V   |      2+25       0.4395      3.62  |      Q  |         |         |       V |      2+30       0.4524      1.86  |  Q      |         |         |        V|      2+35       0.4557      0.49  Q         |         |         |        V|      2+40       0.4565      0.12  Q         |         |         |        V|      2+45       0.4567      0.03  Q         |         |         |        V|      2+50       0.4567      0.00  Q         |         |         |        V|      2+55       0.4567      0.00  Q         |         |         |        V|      3+ 0       0.4567      0.00  Q         |         |         |        V|      3+ 5       0.4567      0.00  Q         |         |         |        V|      3+10       0.4567      0.00  Q         |         |         |        V|      3+15       0.4567      0.00  Q         |         |         |        V|      3+20       0.4567      0.00  Q         |         |         |        V|      3+25       0.4567      0.00  Q         |         |         |         V  ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ U n i t   H y d r o g r a p h    A n a l y s i s Copyright (c) CIVILCADD/CIVILDESIGN, 1989 ‐ 2004, Version 7.0 Study date  06/28/24 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ San Bernardino County Synthetic Unit Hydrology Method Manual date ‐ August 1986 Program License Serial Number 5016 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ JN 4113 UNIT HYDROGRAPH 100 YEAR 24 HOUR STORM  POST‐DEVELOPED ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Storm Event Year = 100 Antecedent Moisture Condition = 3  English (in‐lb) Input Units Used  English Rainfall Data (Inches) Input Values Used  English Units used in output format Area averaged rainfall intensity isohyetal data: Sub‐Area        Duration        Isohyetal (Ac.)            (hours)         (In) Rainfall data for year 100      3.98            1           1.48 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Rainfall data for year 100      3.98            6           0.62 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Rainfall data for year 100      3.98           24           0.29 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ ******** Area‐averaged max loss rate, Fm ******** SCS curve  SCS curve     Area     Area     Fp(Fig C6)    Ap      Fm No.(AMCII) NO.(AMC 3)    (Ac.)    Fraction     (In/Hr)  (dec.)   (In/Hr)  32.0      52.0          3.98      1.000     0.785    0.130    0.102 Area‐averaged adjusted loss rate Fm (In/Hr) =  0.102 ********* Area‐Averaged low loss rate fraction, Yb ********** Area       Area          SCS CN    SCS CN      S     Pervious  (Ac.)      Fract         (AMC2)    (AMC3)           Yield Fr      0.52   0.130         32.0      52.0       7.41     0.000      3.46   0.870         98.0      98.0       0.20     0.852 Area‐averaged catchment yield fraction, Y =  0.741 Area‐averaged low loss fraction, Yb =  0.259 User entry of time of concentration  =   0.175 (hours) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Watershed area =       3.98(Ac.) Catchment Lag time =   0.140 hours Unit interval =   5.000 minutes Unit interval percentage of lag time = 59.6329 Hydrograph baseflow =     0.00(CFS) Average maximum watershed loss rate(Fm) =  0.102(In/Hr) Average low loss rate fraction (Yb) = 0.259 (decimal) VALLEY DEVELOPED S‐Graph Selected Computed peak 5‐minute rainfall =  0.548(In) Computed peak 30‐minute rainfall =  1.122(In) Specified peak 1‐hour rainfall =  1.480(In) Computed peak 3‐hour rainfall =  1.480(In) Specified peak 6‐hour rainfall =  1.481(In) Specified peak 24‐hour rainfall =  1.482(In) Note: user specified rainfall values used. Rainfall depth area reduction factors: Using a total area of       3.98(Ac.) (Ref: fig. E‐4) 5‐minute factor = 1.000     Adjusted rainfall =  0.548(In) 30‐minute factor = 1.000    Adjusted rainfall =  1.121(In) 1‐hour factor = 1.000       Adjusted rainfall =  1.480(In) 3‐hour factor = 1.000       Adjusted rainfall =  1.480(In) 6‐hour factor = 1.000       Adjusted rainfall =  1.481(In) 24‐hour factor = 1.000      Adjusted rainfall =  1.482(In) ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ U n i t  H y d r o g r a p h  +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Interval          'S' Graph          Unit Hydrograph Number            Mean values             ((CFS)) ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ (K =        48.13 (CFS))   1                6.442                   3.101   2               41.188                  16.724   3               81.358                  19.335   4               95.384                   6.751   5               98.630                   1.562   6              100.000                   0.659 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Total soil rain loss =      0.10(In) Total effective rainfall =      1.38(In) Peak flow rate in flood hydrograph =     13.57(CFS) ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++                     24 ‐ H O U R    S T O R M                R u n o f f      H y d r o g r a p h ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐             Hydrograph in   5   Minute intervals ((CFS)) ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐   Time(h+m) Volume Ac.Ft   Q(CFS)  0        5.0      10.0      15.0      20.0   ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐     0+ 5       0.0000      0.00  Q         |         |         |         |      0+10       0.0000      0.00  Q         |         |         |         |      0+15       0.0000      0.00  Q         |         |         |         |      0+20       0.0000      0.00  Q         |         |         |         |      0+25       0.0000      0.00  Q         |         |         |         |      0+30       0.0000      0.00  Q         |         |         |         |      0+35       0.0000      0.00  Q         |         |         |         |      0+40       0.0000      0.00  Q         |         |         |         |      0+45       0.0000      0.00  Q         |         |         |         |      0+50       0.0000      0.00  Q         |         |         |         |      0+55       0.0000      0.00  Q         |         |         |         |      1+ 0       0.0000      0.00  Q         |         |         |         |      1+ 5       0.0000      0.00  Q         |         |         |         |      1+10       0.0000      0.00  Q         |         |         |         |      1+15       0.0000      0.00  Q         |         |         |         |      1+20       0.0000      0.00  Q         |         |         |         |      1+25       0.0000      0.00  Q         |         |         |         |      1+30       0.0000      0.00  Q         |         |         |         |      1+35       0.0000      0.00  Q         |         |         |         |      1+40       0.0000      0.00  Q         |         |         |         |      1+45       0.0000      0.00  Q         |         |         |         |      1+50       0.0000      0.00  Q         |         |         |         |      1+55       0.0000      0.00  Q         |         |         |         |      2+ 0       0.0000      0.00  Q         |         |         |         |      2+ 5       0.0000      0.00  Q         |         |         |         |      2+10       0.0000      0.00  Q         |         |         |         |      2+15       0.0000      0.00  Q         |         |         |         |      2+20       0.0000      0.00  Q         |         |         |         |      2+25       0.0000      0.00  Q         |         |         |         |      2+30       0.0000      0.00  Q         |         |         |         |      2+35       0.0000      0.00  Q         |         |         |         |      2+40       0.0000      0.00  Q         |         |         |         |      2+45       0.0000      0.00  Q         |         |         |         |      2+50       0.0000      0.00  Q         |         |         |         |      2+55       0.0000      0.00  Q         |         |         |         |      3+ 0       0.0000      0.00  Q         |         |         |         |      3+ 5       0.0000      0.00  Q         |         |         |         |      3+10       0.0000      0.00  Q         |         |         |         |      3+15       0.0000      0.00  Q         |         |         |         |      3+20       0.0000      0.00  Q         |         |         |         |      3+25       0.0000      0.00  Q         |         |         |         |      3+30       0.0000      0.00  Q         |         |         |         |      3+35       0.0000      0.00  Q         |         |         |         |      3+40       0.0000      0.00  Q         |         |         |         |      3+45       0.0000      0.00  Q         |         |         |         |      3+50       0.0000      0.00  Q         |         |         |         |      3+55       0.0000      0.00  Q         |         |         |         |      4+ 0       0.0000      0.00  Q         |         |         |         |      4+ 5       0.0000      0.00  Q         |         |         |         |      4+10       0.0000      0.00  Q         |         |         |         |      4+15       0.0000      0.00  Q         |         |         |         |      4+20       0.0000      0.00  Q         |         |         |         |      4+25       0.0000      0.00  Q         |         |         |         |      4+30       0.0000      0.00  Q         |         |         |         |      4+35       0.0000      0.00  Q         |         |         |         |      4+40       0.0000      0.00  Q         |         |         |         |      4+45       0.0000      0.00  Q         |         |         |         |      4+50       0.0000      0.00  Q         |         |         |         |      4+55       0.0000      0.00  Q         |         |         |         |      5+ 0       0.0000      0.00  Q         |         |         |         |      5+ 5       0.0000      0.00  Q         |         |         |         |      5+10       0.0000      0.00  Q         |         |         |         |      5+15       0.0000      0.00  Q         |         |         |         |      5+20       0.0000      0.00  Q         |         |         |         |      5+25       0.0000      0.00  Q         |         |         |         |      5+30       0.0000      0.00  Q         |         |         |         |      5+35       0.0000      0.00  Q         |         |         |         |      5+40       0.0001      0.00  Q         |         |         |         |      5+45       0.0001      0.00  Q         |         |         |         |      5+50       0.0001      0.00  Q         |         |         |         |      5+55       0.0001      0.00  Q         |         |         |         |      6+ 0       0.0001      0.00  Q         |         |         |         |      6+ 5       0.0001      0.00  Q         |         |         |         |      6+10       0.0001      0.00  Q         |         |         |         |      6+15       0.0001      0.00  Q         |         |         |         |      6+20       0.0001      0.00  Q         |         |         |         |      6+25       0.0001      0.00  Q         |         |         |         |      6+30       0.0001      0.00  Q         |         |         |         |      6+35       0.0001      0.00  Q         |         |         |         |      6+40       0.0001      0.00  Q         |         |         |         |      6+45       0.0001      0.00  Q         |         |         |         |      6+50       0.0001      0.00  Q         |         |         |         |      6+55       0.0001      0.00  Q         |         |         |         |      7+ 0       0.0001      0.00  Q         |         |         |         |      7+ 5       0.0001      0.00  Q         |         |         |         |      7+10       0.0001      0.00  Q         |         |         |         |      7+15       0.0001      0.00  Q         |         |         |         |      7+20       0.0001      0.00  Q         |         |         |         |      7+25       0.0001      0.00  Q         |         |         |         |      7+30       0.0001      0.00  Q         |         |         |         |      7+35       0.0001      0.00  Q         |         |         |         |      7+40       0.0001      0.00  Q         |         |         |         |      7+45       0.0001      0.00  Q         |         |         |         |      7+50       0.0001      0.00  Q         |         |         |         |      7+55       0.0001      0.00  Q         |         |         |         |      8+ 0       0.0001      0.00  Q         |         |         |         |      8+ 5       0.0001      0.00  Q         |         |         |         |      8+10       0.0001      0.00  Q         |         |         |         |      8+15       0.0001      0.00  Q         |         |         |         |      8+20       0.0001      0.00  Q         |         |         |         |      8+25       0.0001      0.00  Q         |         |         |         |      8+30       0.0001      0.00  Q         |         |         |         |      8+35       0.0001      0.00  Q         |         |         |         |      8+40       0.0001      0.00  Q         |         |         |         |      8+45       0.0001      0.00  Q         |         |         |         |      8+50       0.0001      0.00  Q         |         |         |         |      8+55       0.0001      0.00  Q         |         |         |         |      9+ 0       0.0001      0.00  Q         |         |         |         |      9+ 5       0.0001      0.00  Q         |         |         |         |      9+10       0.0001      0.00  Q         |         |         |         |      9+15       0.0001      0.00  Q         |         |         |         |      9+20       0.0001      0.00  Q         |         |         |         |      9+25       0.0001      0.00  Q         |         |         |         |      9+30       0.0001      0.00  Q         |         |         |         |      9+35       0.0001      0.00  Q         |         |         |         |      9+40       0.0001      0.00  Q         |         |         |         |      9+45       0.0001      0.00  Q         |         |         |         |      9+50       0.0001      0.00  Q         |         |         |         |      9+55       0.0001      0.00  Q         |         |         |         |     10+ 0       0.0001      0.00  Q         |         |         |         |     10+ 5       0.0001      0.00  Q         |         |         |         |     10+10       0.0001      0.00  Q         |         |         |         |     10+15       0.0001      0.00  Q         |         |         |         |     10+20       0.0001      0.00  Q         |         |         |         |     10+25       0.0001      0.00  Q         |         |         |         |     10+30       0.0001      0.00  Q         |         |         |         |     10+35       0.0001      0.00  Q         |         |         |         |     10+40       0.0001      0.00  Q         |         |         |         |     10+45       0.0001      0.00  Q         |         |         |         |     10+50       0.0001      0.00  Q         |         |         |         |     10+55       0.0001      0.00  Q         |         |         |         |     11+ 0       0.0001      0.00  Q         |         |         |         |     11+ 5       0.0001      0.00  Q         |         |         |         |     11+10       0.0001      0.00  Q         |         |         |         |     11+15       0.0001      0.00  Q         |         |         |         |     11+20       0.0001      0.00  Q         |         |         |         |     11+25       0.0001      0.00  Q         |         |         |         |     11+30       0.0001      0.00  Q         |         |         |         |     11+35       0.0001      0.00  Q         |         |         |         |     11+40       0.0002      0.00  Q         |         |         |         |     11+45       0.0002      0.00  Q         |         |         |         |     11+50       0.0002      0.00  Q         |         |         |         |     11+55       0.0002      0.00  Q         |         |         |         |     12+ 0       0.0002      0.00  Q         |         |         |         |     12+ 5       0.0002      0.00  Q         |         |         |         |     12+10       0.0002      0.00  Q         |         |         |         |     12+15       0.0002      0.00  Q         |         |         |         |     12+20       0.0002      0.00  Q         |         |         |         |     12+25       0.0002      0.00  Q         |         |         |         |     12+30       0.0002      0.00  Q         |         |         |         |     12+35       0.0002      0.00  Q         |         |         |         |     12+40       0.0002      0.00  Q         |         |         |         |     12+45       0.0002      0.00  Q         |         |         |         |     12+50       0.0002      0.00  Q         |         |         |         |     12+55       0.0002      0.00  Q         |         |         |         |     13+ 0       0.0002      0.00  Q         |         |         |         |     13+ 5       0.0002      0.00  Q         |         |         |         |     13+10       0.0002      0.00  Q         |         |         |         |     13+15       0.0002      0.00  Q         |         |         |         |     13+20       0.0002      0.00  Q         |         |         |         |     13+25       0.0003      0.00  Q         |         |         |         |     13+30       0.0003      0.00  Q         |         |         |         |     13+35       0.0003      0.00  Q         |         |         |         |     13+40       0.0003      0.00  Q         |         |         |         |     13+45       0.0003      0.00  Q         |         |         |         |     13+50       0.0003      0.00  Q         |         |         |         |     13+55       0.0003      0.00  Q         |         |         |         |     14+ 0       0.0003      0.00  Q         |         |         |         |     14+ 5       0.0003      0.00  Q         |         |         |         |     14+10       0.0003      0.00  Q         |         |         |         |     14+15       0.0003      0.00  Q         |         |         |         |     14+20       0.0003      0.00  Q         |         |         |         |     14+25       0.0003      0.00  Q         |         |         |         |     14+30       0.0003      0.00  Q         |         |         |         |     14+35       0.0003      0.00  Q         |         |         |         |     14+40       0.0003      0.00  Q         |         |         |         |     14+45       0.0003      0.00  Q         |         |         |         |     14+50       0.0003      0.00  Q         |         |         |         |     14+55       0.0003      0.00  Q         |         |         |         |     15+ 0       0.0003      0.00  Q         |         |         |         |     15+ 5       0.0004      0.00  Q         |         |         |         |     15+10       0.0004      0.00  Q         |         |         |         |     15+15       0.0004      0.00  Q         |         |         |         |     15+20       0.0004      0.00  Q         |         |         |         |     15+25       0.0013      0.13  Q         |         |         |         |     15+30       0.0071      0.84  VQ        |         |         |         |     15+35       0.0190      1.73  |V Q      |         |         |         |     15+40       0.0341      2.20  | V Q     |         |         |         |     15+45       0.0517      2.55  |   VQ    |         |         |         |     15+50       0.0722      2.98  |    QV   |         |         |         |     15+55       0.0968      3.57  |      QV |         |         |         |     16+ 0       0.1289      4.66  |        Q|V        |         |         |     16+ 5       0.1801      7.44  |         |   QV    |         |         |     16+10       0.2731     13.50  |         |         |  V   Q  |         |     16+15       0.3666     13.57  |         |         |      Q  | V       |     16+20       0.4150      7.02  |         |   Q     |         |     V   |     16+25       0.4399      3.62  |      Q  |         |         |       V |     16+30       0.4527      1.86  |  Q      |         |         |        V|     16+35       0.4560      0.49  Q         |         |         |        V|     16+40       0.4568      0.12  Q         |         |         |        V|     16+45       0.4571      0.03  Q         |         |         |        V|     16+50       0.4571      0.00  Q         |         |         |        V|     16+55       0.4571      0.00  Q         |         |         |        V|     17+ 0       0.4571      0.00  Q         |         |         |        V|     17+ 5       0.4571      0.00  Q         |         |         |        V|     17+10       0.4571      0.00  Q         |         |         |        V|     17+15       0.4571      0.00  Q         |         |         |        V|     17+20       0.4571      0.00  Q         |         |         |        V|     17+25       0.4571      0.00  Q         |         |         |        V|     17+30       0.4571      0.00  Q         |         |         |        V|     17+35       0.4571      0.00  Q         |         |         |        V|     17+40       0.4571      0.00  Q         |         |         |        V|     17+45       0.4571      0.00  Q         |         |         |        V|     17+50       0.4571      0.00  Q         |         |         |        V|     17+55       0.4571      0.00  Q         |         |         |        V|     18+ 0       0.4572      0.00  Q         |         |         |        V|     18+ 5       0.4572      0.00  Q         |         |         |        V|     18+10       0.4572      0.00  Q         |         |         |        V|     18+15       0.4572      0.00  Q         |         |         |        V|     18+20       0.4572      0.00  Q         |         |         |        V|     18+25       0.4572      0.00  Q         |         |         |        V|     18+30       0.4572      0.00  Q         |         |         |        V|     18+35       0.4572      0.00  Q         |         |         |        V|     18+40       0.4572      0.00  Q         |         |         |        V|     18+45       0.4572      0.00  Q         |         |         |        V|     18+50       0.4572      0.00  Q         |         |         |        V|     18+55       0.4572      0.00  Q         |         |         |        V|     19+ 0       0.4572      0.00  Q         |         |         |        V|     19+ 5       0.4572      0.00  Q         |         |         |        V|     19+10       0.4572      0.00  Q         |         |         |        V|     19+15       0.4572      0.00  Q         |         |         |        V|     19+20       0.4572      0.00  Q         |         |         |        V|     19+25       0.4572      0.00  Q         |         |         |        V|     19+30       0.4572      0.00  Q         |         |         |        V|     19+35       0.4572      0.00  Q         |         |         |        V|     19+40       0.4572      0.00  Q         |         |         |        V|     19+45       0.4572      0.00  Q         |         |         |        V|     19+50       0.4572      0.00  Q         |         |         |        V|     19+55       0.4572      0.00  Q         |         |         |        V|     20+ 0       0.4572      0.00  Q         |         |         |        V|     20+ 5       0.4572      0.00  Q         |         |         |        V|     20+10       0.4572      0.00  Q         |         |         |        V|     20+15       0.4572      0.00  Q         |         |         |        V|     20+20       0.4572      0.00  Q         |         |         |        V|     20+25       0.4572      0.00  Q         |         |         |        V|     20+30       0.4572      0.00  Q         |         |         |        V|     20+35       0.4572      0.00  Q         |         |         |        V|     20+40       0.4572      0.00  Q         |         |         |        V|     20+45       0.4572      0.00  Q         |         |         |        V|     20+50       0.4572      0.00  Q         |         |         |        V|     20+55       0.4572      0.00  Q         |         |         |        V|     21+ 0       0.4572      0.00  Q         |         |         |        V|     21+ 5       0.4572      0.00  Q         |         |         |        V|     21+10       0.4572      0.00  Q         |         |         |        V|     21+15       0.4572      0.00  Q         |         |         |        V|     21+20       0.4572      0.00  Q         |         |         |        V|     21+25       0.4572      0.00  Q         |         |         |        V|     21+30       0.4572      0.00  Q         |         |         |        V|     21+35       0.4572      0.00  Q         |         |         |        V|     21+40       0.4572      0.00  Q         |         |         |        V|     21+45       0.4572      0.00  Q         |         |         |        V|     21+50       0.4572      0.00  Q         |         |         |        V|     21+55       0.4572      0.00  Q         |         |         |        V|     22+ 0       0.4572      0.00  Q         |         |         |        V|     22+ 5       0.4572      0.00  Q         |         |         |        V|     22+10       0.4572      0.00  Q         |         |         |        V|     22+15       0.4572      0.00  Q         |         |         |        V|     22+20       0.4572      0.00  Q         |         |         |        V|     22+25       0.4572      0.00  Q         |         |         |        V|     22+30       0.4572      0.00  Q         |         |         |        V|     22+35       0.4572      0.00  Q         |         |         |        V|     22+40       0.4572      0.00  Q         |         |         |        V|     22+45       0.4572      0.00  Q         |         |         |        V|     22+50       0.4572      0.00  Q         |         |         |        V|     22+55       0.4572      0.00  Q         |         |         |        V|     23+ 0       0.4572      0.00  Q         |         |         |        V|     23+ 5       0.4572      0.00  Q         |         |         |        V|     23+10       0.4572      0.00  Q         |         |         |        V|     23+15       0.4572      0.00  Q         |         |         |        V|     23+20       0.4572      0.00  Q         |         |         |        V|     23+25       0.4572      0.00  Q         |         |         |        V|     23+30       0.4572      0.00  Q         |         |         |        V|     23+35       0.4572      0.00  Q         |         |         |        V|     23+40       0.4572      0.00  Q         |         |         |        V|     23+45       0.4572      0.00  Q         |         |         |        V|     23+50       0.4572      0.00  Q         |         |         |        V|     23+55       0.4572      0.00  Q         |         |         |        V|     24+ 0       0.4572      0.00  Q         |         |         |        V|     24+ 5       0.4572      0.00  Q         |         |         |        V|     24+10       0.4572      0.00  Q         |         |         |        V|     24+15       0.4572      0.00  Q         |         |         |        V|     24+20       0.4572      0.00  Q         |         |         |        V|     24+25       0.4572      0.00  Q         |         |         |        V|  ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ U n i t   H y d r o g r a p h    A n a l y s i s Copyright (c) CIVILCADD/CIVILDESIGN, 1989 ‐ 2004, Version 7.0 Study date  07/24/24 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ San Bernardino County Synthetic Unit Hydrology Method Manual date ‐ August 1986 Program License Serial Number 5016 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ JN 4113 UNIT HYDROGRAPH 2 YEAR 3 HOUR STORM‐ POST‐DEVELOPED ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Storm Event Year = 2 Antecedent Moisture Condition = 2  English (in‐lb) Input Units Used  English Rainfall Data (Inches) Input Values Used  English Units used in output format Area averaged rainfall intensity isohyetal data: Sub‐Area        Duration        Isohyetal (Ac.)            (hours)         (In) Rainfall data for year 10      3.98            1           0.92 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Rainfall data for year 2      3.98            6           0.27 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Rainfall data for year 2      3.98           24           0.13 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Rainfall data for year 100      3.98            1           1.48 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Rainfall data for year 100      3.98            6           0.62 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Rainfall data for year 100      3.98           24           0.29 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ ******** Area‐averaged max loss rate, Fm ******** SCS curve  SCS curve     Area     Area     Fp(Fig C6)    Ap      Fm No.(AMCII) NO.(AMC 2)    (Ac.)    Fraction     (In/Hr)  (dec.)   (In/Hr)  32.0      32.0          3.98      1.000     0.978    0.130    0.127 Area‐averaged adjusted loss rate Fm (In/Hr) =  0.127 ********* Area‐Averaged low loss rate fraction, Yb ********** Area       Area          SCS CN    SCS CN      S     Pervious  (Ac.)      Fract         (AMC2)    (AMC2)           Yield Fr      0.52   0.130         32.0      32.0       2.61     0.000      3.46   0.870         98.0      98.0       0.20     0.647 Area‐averaged catchment yield fraction, Y =  0.563 Area‐averaged low loss fraction, Yb =  0.437 User entry of time of concentration  =   0.178 (hours) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Watershed area =       3.98(Ac.) Catchment Lag time =   0.142 hours Unit interval =   5.000 minutes Unit interval percentage of lag time = 58.5700 Hydrograph baseflow =     0.00(CFS) Average maximum watershed loss rate(Fm) =  0.127(In/Hr) Average low loss rate fraction (Yb) = 0.437 (decimal) VALLEY DEVELOPED S‐Graph Selected Computed peak 5‐minute rainfall =  0.192(In) Computed peak 30‐minute rainfall =  0.394(In) Specified peak 1‐hour rainfall =  0.520(In) Computed peak 3‐hour rainfall =  0.520(In) Specified peak 6‐hour rainfall =  0.521(In) Specified peak 24‐hour rainfall =  0.522(In) Note: user specified rainfall values used. Rainfall depth area reduction factors: Using a total area of       3.98(Ac.) (Ref: fig. E‐4) 5‐minute factor = 1.000     Adjusted rainfall =  0.192(In) 30‐minute factor = 1.000    Adjusted rainfall =  0.394(In) 1‐hour factor = 1.000       Adjusted rainfall =  0.520(In) 3‐hour factor = 1.000       Adjusted rainfall =  0.520(In) 6‐hour factor = 1.000       Adjusted rainfall =  0.521(In) 24‐hour factor = 1.000      Adjusted rainfall =  0.522(In) ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ U n i t  H y d r o g r a p h  +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Interval          'S' Graph          Unit Hydrograph Number            Mean values             ((CFS)) ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ (K =        48.13 (CFS))   1                6.220                   2.994   2               39.874                  16.198   3               80.296                  19.457   4               94.943                   7.050   5               98.536                   1.729   6              100.000                   0.705 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Total soil rain loss =      0.12(In) Total effective rainfall =      0.40(In) Peak flow rate in flood hydrograph =      4.43(CFS) ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++                     3 ‐ H O U R    S T O R M                R u n o f f      H y d r o g r a p h ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐             Hydrograph in   5   Minute intervals ((CFS)) ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐   Time(h+m) Volume Ac.Ft   Q(CFS)  0        2.5       5.0       7.5      10.0   ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐     0+ 5       0.0000      0.00  Q         |         |         |         |      0+10       0.0000      0.00  Q         |         |         |         |      0+15       0.0000      0.00  Q         |         |         |         |      0+20       0.0000      0.00  Q         |         |         |         |      0+25       0.0000      0.00  Q         |         |         |         |      0+30       0.0000      0.00  Q         |         |         |         |      0+35       0.0000      0.00  Q         |         |         |         |      0+40       0.0000      0.00  Q         |         |         |         |      0+45       0.0000      0.00  Q         |         |         |         |      0+50       0.0000      0.00  Q         |         |         |         |      0+55       0.0000      0.00  Q         |         |         |         |      1+ 0       0.0000      0.00  Q         |         |         |         |      1+ 5       0.0000      0.00  Q         |         |         |         |      1+10       0.0000      0.00  Q         |         |         |         |      1+15       0.0000      0.00  Q         |         |         |         |      1+20       0.0000      0.00  Q         |         |         |         |      1+25       0.0002      0.03  Q         |         |         |         |      1+30       0.0016      0.19  Q         |         |         |         |      1+35       0.0043      0.40  |Q        |         |         |         |      1+40       0.0078      0.51  | Q       |         |         |         |      1+45       0.0119      0.59  | QV      |         |         |         |      1+50       0.0167      0.70  | Q  V    |         |         |         |      1+55       0.0228      0.89  |  Q  V   |         |         |         |      2+ 0       0.0315      1.26  |    Q   V|         |         |         |      2+ 5       0.0468      2.22  |       Q |   V     |         |         |      2+10       0.0764      4.30  |         |      Q  | V       |         |      2+15       0.1069      4.43  |         |      Q  |         | V       |      2+20       0.1218      2.16  |       Q |         |         |     V   |      2+25       0.1287      1.00  |  Q      |         |         |       V |      2+30       0.1321      0.49  |Q        |         |         |        V|      2+35       0.1329      0.12  Q         |         |         |        V|      2+40       0.1331      0.03  Q         |         |         |        V|      2+45       0.1332      0.01  Q         |         |         |        V|      2+50       0.1332      0.00  Q         |         |         |        V|      2+55       0.1332      0.00  Q         |         |         |        V|      3+ 0       0.1332      0.00  Q         |         |         |        V|      3+ 5       0.1332      0.00  Q         |         |         |        V|      3+10       0.1332      0.00  Q         |         |         |        V|      3+15       0.1332      0.00  Q         |         |         |        V|      3+20       0.1332      0.00  Q         |         |         |        V|      3+25       0.1332      0.00  Q         |         |         |         V  ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ U n i t   H y d r o g r a p h    A n a l y s i s Copyright (c) CIVILCADD/CIVILDESIGN, 1989 ‐ 2004, Version 7.0 Study date  07/24/24 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ San Bernardino County Synthetic Unit Hydrology Method Manual date ‐ August 1986 Program License Serial Number 5016 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ JN 4113 UNIT HYDROGRAPH 2 YEAR 24 HOUR STORM‐ Post‐DWEVELOPED CONDITION ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Storm Event Year = 2 Antecedent Moisture Condition = 2  English (in‐lb) Input Units Used  English Rainfall Data (Inches) Input Values Used  English Units used in output format Area averaged rainfall intensity isohyetal data: Sub‐Area        Duration        Isohyetal (Ac.)            (hours)         (In) Rainfall data for year 10      3.98            1           0.92 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Rainfall data for year 2      3.98            6           0.27 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Rainfall data for year 2      3.98           24           0.13 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Rainfall data for year 100      3.98            1           1.48 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Rainfall data for year 100      3.98            6           0.62 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Rainfall data for year 100      3.98           24           0.29 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ ******** Area‐averaged max loss rate, Fm ******** SCS curve  SCS curve     Area     Area     Fp(Fig C6)    Ap      Fm No.(AMCII) NO.(AMC 2)    (Ac.)    Fraction     (In/Hr)  (dec.)   (In/Hr)  32.0      32.0          3.98      1.000     0.978    0.130    0.127 Area‐averaged adjusted loss rate Fm (In/Hr) =  0.127 ********* Area‐Averaged low loss rate fraction, Yb ********** Area       Area          SCS CN    SCS CN      S     Pervious  (Ac.)      Fract         (AMC2)    (AMC2)           Yield Fr      0.52   0.130         32.0      32.0       2.61     0.000      3.46   0.870         98.0      98.0       0.20     0.647 Area‐averaged catchment yield fraction, Y =  0.563 Area‐averaged low loss fraction, Yb =  0.437 User entry of time of concentration  =   0.178 (hours) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Watershed area =       3.98(Ac.) Catchment Lag time =   0.142 hours Unit interval =   5.000 minutes Unit interval percentage of lag time = 58.5700 Hydrograph baseflow =     0.00(CFS) Average maximum watershed loss rate(Fm) =  0.127(In/Hr) Average low loss rate fraction (Yb) = 0.437 (decimal) VALLEY DEVELOPED S‐Graph Selected Computed peak 5‐minute rainfall =  0.192(In) Computed peak 30‐minute rainfall =  0.394(In) Specified peak 1‐hour rainfall =  0.520(In) Computed peak 3‐hour rainfall =  0.520(In) Specified peak 6‐hour rainfall =  0.521(In) Specified peak 24‐hour rainfall =  0.522(In) Note: user specified rainfall values used. Rainfall depth area reduction factors: Using a total area of       3.98(Ac.) (Ref: fig. E‐4) 5‐minute factor = 1.000     Adjusted rainfall =  0.192(In) 30‐minute factor = 1.000    Adjusted rainfall =  0.394(In) 1‐hour factor = 1.000       Adjusted rainfall =  0.520(In) 3‐hour factor = 1.000       Adjusted rainfall =  0.520(In) 6‐hour factor = 1.000       Adjusted rainfall =  0.521(In) 24‐hour factor = 1.000      Adjusted rainfall =  0.522(In) ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ U n i t  H y d r o g r a p h  +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Interval          'S' Graph          Unit Hydrograph Number            Mean values             ((CFS)) ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ (K =        48.13 (CFS))   1                6.220                   2.994   2               39.874                  16.198   3               80.296                  19.457   4               94.943                   7.050   5               98.536                   1.729   6              100.000                   0.705 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Total soil rain loss =      0.12(In) Total effective rainfall =      0.40(In) Peak flow rate in flood hydrograph =      4.43(CFS) ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++                     24 ‐ H O U R    S T O R M                R u n o f f      H y d r o g r a p h ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐             Hydrograph in   5   Minute intervals ((CFS)) ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐   Time(h+m) Volume Ac.Ft   Q(CFS)  0        2.5       5.0       7.5      10.0   ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐     0+ 5       0.0000      0.00  Q         |         |         |         |      0+10       0.0000      0.00  Q         |         |         |         |      0+15       0.0000      0.00  Q         |         |         |         |      0+20       0.0000      0.00  Q         |         |         |         |      0+25       0.0000      0.00  Q         |         |         |         |      0+30       0.0000      0.00  Q         |         |         |         |      0+35       0.0000      0.00  Q         |         |         |         |      0+40       0.0000      0.00  Q         |         |         |         |      0+45       0.0000      0.00  Q         |         |         |         |      0+50       0.0000      0.00  Q         |         |         |         |      0+55       0.0000      0.00  Q         |         |         |         |      1+ 0       0.0000      0.00  Q         |         |         |         |      1+ 5       0.0000      0.00  Q         |         |         |         |      1+10       0.0000      0.00  Q         |         |         |         |      1+15       0.0000      0.00  Q         |         |         |         |      1+20       0.0000      0.00  Q         |         |         |         |      1+25       0.0000      0.00  Q         |         |         |         |      1+30       0.0000      0.00  Q         |         |         |         |      1+35       0.0000      0.00  Q         |         |         |         |      1+40       0.0000      0.00  Q         |         |         |         |      1+45       0.0000      0.00  Q         |         |         |         |      1+50       0.0000      0.00  Q         |         |         |         |      1+55       0.0000      0.00  Q         |         |         |         |      2+ 0       0.0000      0.00  Q         |         |         |         |      2+ 5       0.0000      0.00  Q         |         |         |         |      2+10       0.0000      0.00  Q         |         |         |         |      2+15       0.0000      0.00  Q         |         |         |         |      2+20       0.0000      0.00  Q         |         |         |         |      2+25       0.0000      0.00  Q         |         |         |         |      2+30       0.0000      0.00  Q         |         |         |         |      2+35       0.0000      0.00  Q         |         |         |         |      2+40       0.0000      0.00  Q         |         |         |         |      2+45       0.0000      0.00  Q         |         |         |         |      2+50       0.0000      0.00  Q         |         |         |         |      2+55       0.0000      0.00  Q         |         |         |         |      3+ 0       0.0000      0.00  Q         |         |         |         |      3+ 5       0.0000      0.00  Q         |         |         |         |      3+10       0.0000      0.00  Q         |         |         |         |      3+15       0.0000      0.00  Q         |         |         |         |      3+20       0.0000      0.00  Q         |         |         |         |      3+25       0.0000      0.00  Q         |         |         |         |      3+30       0.0000      0.00  Q         |         |         |         |      3+35       0.0000      0.00  Q         |         |         |         |      3+40       0.0000      0.00  Q         |         |         |         |      3+45       0.0000      0.00  Q         |         |         |         |      3+50       0.0000      0.00  Q         |         |         |         |      3+55       0.0000      0.00  Q         |         |         |         |      4+ 0       0.0000      0.00  Q         |         |         |         |      4+ 5       0.0000      0.00  Q         |         |         |         |      4+10       0.0000      0.00  Q         |         |         |         |      4+15       0.0000      0.00  Q         |         |         |         |      4+20       0.0000      0.00  Q         |         |         |         |      4+25       0.0000      0.00  Q         |         |         |         |      4+30       0.0000      0.00  Q         |         |         |         |      4+35       0.0000      0.00  Q         |         |         |         |      4+40       0.0000      0.00  Q         |         |         |         |      4+45       0.0000      0.00  Q         |         |         |         |      4+50       0.0000      0.00  Q         |         |         |         |      4+55       0.0000      0.00  Q         |         |         |         |      5+ 0       0.0000      0.00  Q         |         |         |         |      5+ 5       0.0000      0.00  Q         |         |         |         |      5+10       0.0000      0.00  Q         |         |         |         |      5+15       0.0000      0.00  Q         |         |         |         |      5+20       0.0000      0.00  Q         |         |         |         |      5+25       0.0000      0.00  Q         |         |         |         |      5+30       0.0000      0.00  Q         |         |         |         |      5+35       0.0000      0.00  Q         |         |         |         |      5+40       0.0000      0.00  Q         |         |         |         |      5+45       0.0000      0.00  Q         |         |         |         |      5+50       0.0000      0.00  Q         |         |         |         |      5+55       0.0000      0.00  Q         |         |         |         |      6+ 0       0.0000      0.00  Q         |         |         |         |      6+ 5       0.0000      0.00  Q         |         |         |         |      6+10       0.0000      0.00  Q         |         |         |         |      6+15       0.0000      0.00  Q         |         |         |         |      6+20       0.0000      0.00  Q         |         |         |         |      6+25       0.0000      0.00  Q         |         |         |         |      6+30       0.0000      0.00  Q         |         |         |         |      6+35       0.0000      0.00  Q         |         |         |         |      6+40       0.0000      0.00  Q         |         |         |         |      6+45       0.0000      0.00  Q         |         |         |         |      6+50       0.0000      0.00  Q         |         |         |         |      6+55       0.0000      0.00  Q         |         |         |         |      7+ 0       0.0001      0.00  Q         |         |         |         |      7+ 5       0.0001      0.00  Q         |         |         |         |      7+10       0.0001      0.00  Q         |         |         |         |      7+15       0.0001      0.00  Q         |         |         |         |      7+20       0.0001      0.00  Q         |         |         |         |      7+25       0.0001      0.00  Q         |         |         |         |      7+30       0.0001      0.00  Q         |         |         |         |      7+35       0.0001      0.00  Q         |         |         |         |      7+40       0.0001      0.00  Q         |         |         |         |      7+45       0.0001      0.00  Q         |         |         |         |      7+50       0.0001      0.00  Q         |         |         |         |      7+55       0.0001      0.00  Q         |         |         |         |      8+ 0       0.0001      0.00  Q         |         |         |         |      8+ 5       0.0001      0.00  Q         |         |         |         |      8+10       0.0001      0.00  Q         |         |         |         |      8+15       0.0001      0.00  Q         |         |         |         |      8+20       0.0001      0.00  Q         |         |         |         |      8+25       0.0001      0.00  Q         |         |         |         |      8+30       0.0001      0.00  Q         |         |         |         |      8+35       0.0001      0.00  Q         |         |         |         |      8+40       0.0001      0.00  Q         |         |         |         |      8+45       0.0001      0.00  Q         |         |         |         |      8+50       0.0001      0.00  Q         |         |         |         |      8+55       0.0001      0.00  Q         |         |         |         |      9+ 0       0.0001      0.00  Q         |         |         |         |      9+ 5       0.0001      0.00  Q         |         |         |         |      9+10       0.0001      0.00  Q         |         |         |         |      9+15       0.0001      0.00  Q         |         |         |         |      9+20       0.0001      0.00  Q         |         |         |         |      9+25       0.0001      0.00  Q         |         |         |         |      9+30       0.0001      0.00  Q         |         |         |         |      9+35       0.0001      0.00  Q         |         |         |         |      9+40       0.0001      0.00  Q         |         |         |         |      9+45       0.0001      0.00  Q         |         |         |         |      9+50       0.0001      0.00  Q         |         |         |         |      9+55       0.0001      0.00  Q         |         |         |         |     10+ 0       0.0001      0.00  Q         |         |         |         |     10+ 5       0.0001      0.00  Q         |         |         |         |     10+10       0.0001      0.00  Q         |         |         |         |     10+15       0.0001      0.00  Q         |         |         |         |     10+20       0.0001      0.00  Q         |         |         |         |     10+25       0.0001      0.00  Q         |         |         |         |     10+30       0.0001      0.00  Q         |         |         |         |     10+35       0.0001      0.00  Q         |         |         |         |     10+40       0.0001      0.00  Q         |         |         |         |     10+45       0.0001      0.00  Q         |         |         |         |     10+50       0.0001      0.00  Q         |         |         |         |     10+55       0.0001      0.00  Q         |         |         |         |     11+ 0       0.0001      0.00  Q         |         |         |         |     11+ 5       0.0001      0.00  Q         |         |         |         |     11+10       0.0001      0.00  Q         |         |         |         |     11+15       0.0001      0.00  Q         |         |         |         |     11+20       0.0001      0.00  Q         |         |         |         |     11+25       0.0001      0.00  Q         |         |         |         |     11+30       0.0001      0.00  Q         |         |         |         |     11+35       0.0001      0.00  Q         |         |         |         |     11+40       0.0001      0.00  Q         |         |         |         |     11+45       0.0001      0.00  Q         |         |         |         |     11+50       0.0001      0.00  Q         |         |         |         |     11+55       0.0001      0.00  Q         |         |         |         |     12+ 0       0.0001      0.00  Q         |         |         |         |     12+ 5       0.0001      0.00  Q         |         |         |         |     12+10       0.0001      0.00  Q         |         |         |         |     12+15       0.0001      0.00  Q         |         |         |         |     12+20       0.0001      0.00  Q         |         |         |         |     12+25       0.0001      0.00  Q         |         |         |         |     12+30       0.0001      0.00  Q         |         |         |         |     12+35       0.0001      0.00  Q         |         |         |         |     12+40       0.0001      0.00  Q         |         |         |         |     12+45       0.0002      0.00  Q         |         |         |         |     12+50       0.0002      0.00  Q         |         |         |         |     12+55       0.0002      0.00  Q         |         |         |         |     13+ 0       0.0002      0.00  Q         |         |         |         |     13+ 5       0.0002      0.00  Q         |         |         |         |     13+10       0.0002      0.00  Q         |         |         |         |     13+15       0.0002      0.00  Q         |         |         |         |     13+20       0.0002      0.00  Q         |         |         |         |     13+25       0.0002      0.00  Q         |         |         |         |     13+30       0.0002      0.00  Q         |         |         |         |     13+35       0.0002      0.00  Q         |         |         |         |     13+40       0.0002      0.00  Q         |         |         |         |     13+45       0.0002      0.00  Q         |         |         |         |     13+50       0.0002      0.00  Q         |         |         |         |     13+55       0.0002      0.00  Q         |         |         |         |     14+ 0       0.0002      0.00  Q         |         |         |         |     14+ 5       0.0002      0.00  Q         |         |         |         |     14+10       0.0002      0.00  Q         |         |         |         |     14+15       0.0002      0.00  Q         |         |         |         |     14+20       0.0002      0.00  Q         |         |         |         |     14+25       0.0002      0.00  Q         |         |         |         |     14+30       0.0003      0.00  Q         |         |         |         |     14+35       0.0003      0.00  Q         |         |         |         |     14+40       0.0003      0.00  Q         |         |         |         |     14+45       0.0003      0.00  Q         |         |         |         |     14+50       0.0003      0.00  Q         |         |         |         |     14+55       0.0003      0.00  Q         |         |         |         |     15+ 0       0.0003      0.00  Q         |         |         |         |     15+ 5       0.0003      0.00  Q         |         |         |         |     15+10       0.0003      0.00  Q         |         |         |         |     15+15       0.0003      0.00  Q         |         |         |         |     15+20       0.0003      0.00  Q         |         |         |         |     15+25       0.0005      0.03  Q         |         |         |         |     15+30       0.0018      0.19  Q         |         |         |         |     15+35       0.0046      0.40  |Q        |         |         |         |     15+40       0.0081      0.51  | Q       |         |         |         |     15+45       0.0121      0.59  | QV      |         |         |         |     15+50       0.0170      0.70  | Q  V    |         |         |         |     15+55       0.0231      0.89  |  Q  V   |         |         |         |     16+ 0       0.0318      1.26  |    Q   V|         |         |         |     16+ 5       0.0470      2.22  |       Q |   V     |         |         |     16+10       0.0767      4.30  |         |      Q  | V       |         |     16+15       0.1072      4.43  |         |      Q  |         | V       |     16+20       0.1221      2.16  |       Q |         |         |     V   |     16+25       0.1289      1.00  |  Q      |         |         |       V |     16+30       0.1323      0.49  |Q        |         |         |        V|     16+35       0.1332      0.12  Q         |         |         |        V|     16+40       0.1334      0.03  Q         |         |         |        V|     16+45       0.1335      0.01  Q         |         |         |        V|     16+50       0.1335      0.00  Q         |         |         |        V|     16+55       0.1335      0.00  Q         |         |         |        V|     17+ 0       0.1335      0.00  Q         |         |         |        V|     17+ 5       0.1335      0.00  Q         |         |         |        V|     17+10       0.1335      0.00  Q         |         |         |        V|     17+15       0.1335      0.00  Q         |         |         |        V|     17+20       0.1335      0.00  Q         |         |         |        V|     17+25       0.1335      0.00  Q         |         |         |        V|     17+30       0.1335      0.00  Q         |         |         |        V|     17+35       0.1335      0.00  Q         |         |         |        V|     17+40       0.1335      0.00  Q         |         |         |        V|     17+45       0.1335      0.00  Q         |         |         |        V|     17+50       0.1335      0.00  Q         |         |         |        V|     17+55       0.1335      0.00  Q         |         |         |        V|     18+ 0       0.1335      0.00  Q         |         |         |        V|     18+ 5       0.1335      0.00  Q         |         |         |        V|     18+10       0.1335      0.00  Q         |         |         |        V|     18+15       0.1335      0.00  Q         |         |         |        V|     18+20       0.1335      0.00  Q         |         |         |        V|     18+25       0.1335      0.00  Q         |         |         |        V|     18+30       0.1335      0.00  Q         |         |         |        V|     18+35       0.1335      0.00  Q         |         |         |        V|     18+40       0.1335      0.00  Q         |         |         |        V|     18+45       0.1335      0.00  Q         |         |         |        V|     18+50       0.1335      0.00  Q         |         |         |        V|     18+55       0.1335      0.00  Q         |         |         |        V|     19+ 0       0.1335      0.00  Q         |         |         |        V|     19+ 5       0.1335      0.00  Q         |         |         |        V|     19+10       0.1335      0.00  Q         |         |         |        V|     19+15       0.1335      0.00  Q         |         |         |        V|     19+20       0.1335      0.00  Q         |         |         |        V|     19+25       0.1335      0.00  Q         |         |         |        V|     19+30       0.1335      0.00  Q         |         |         |        V|     19+35       0.1335      0.00  Q         |         |         |        V|     19+40       0.1335      0.00  Q         |         |         |        V|     19+45       0.1335      0.00  Q         |         |         |        V|     19+50       0.1335      0.00  Q         |         |         |        V|     19+55       0.1335      0.00  Q         |         |         |        V|     20+ 0       0.1335      0.00  Q         |         |         |        V|     20+ 5       0.1335      0.00  Q         |         |         |        V|     20+10       0.1335      0.00  Q         |         |         |        V|     20+15       0.1335      0.00  Q         |         |         |        V|     20+20       0.1336      0.00  Q         |         |         |        V|     20+25       0.1336      0.00  Q         |         |         |        V|     20+30       0.1336      0.00  Q         |         |         |        V|     20+35       0.1336      0.00  Q         |         |         |        V|     20+40       0.1336      0.00  Q         |         |         |        V|     20+45       0.1336      0.00  Q         |         |         |        V|     20+50       0.1336      0.00  Q         |         |         |        V|     20+55       0.1336      0.00  Q         |         |         |        V|     21+ 0       0.1336      0.00  Q         |         |         |        V|     21+ 5       0.1336      0.00  Q         |         |         |        V|     21+10       0.1336      0.00  Q         |         |         |        V|     21+15       0.1336      0.00  Q         |         |         |        V|     21+20       0.1336      0.00  Q         |         |         |        V|     21+25       0.1336      0.00  Q         |         |         |        V|     21+30       0.1336      0.00  Q         |         |         |        V|     21+35       0.1336      0.00  Q         |         |         |        V|     21+40       0.1336      0.00  Q         |         |         |        V|     21+45       0.1336      0.00  Q         |         |         |        V|     21+50       0.1336      0.00  Q         |         |         |        V|     21+55       0.1336      0.00  Q         |         |         |        V|     22+ 0       0.1336      0.00  Q         |         |         |        V|     22+ 5       0.1336      0.00  Q         |         |         |        V|     22+10       0.1336      0.00  Q         |         |         |        V|     22+15       0.1336      0.00  Q         |         |         |        V|     22+20       0.1336      0.00  Q         |         |         |        V|     22+25       0.1336      0.00  Q         |         |         |        V|     22+30       0.1336      0.00  Q         |         |         |        V|     22+35       0.1336      0.00  Q         |         |         |        V|     22+40       0.1336      0.00  Q         |         |         |        V|     22+45       0.1336      0.00  Q         |         |         |        V|     22+50       0.1336      0.00  Q         |         |         |        V|     22+55       0.1336      0.00  Q         |         |         |        V|     23+ 0       0.1336      0.00  Q         |         |         |        V|     23+ 5       0.1336      0.00  Q         |         |         |        V|     23+10       0.1336      0.00  Q         |         |         |        V|     23+15       0.1336      0.00  Q         |         |         |        V|     23+20       0.1336      0.00  Q         |         |         |        V|     23+25       0.1336      0.00  Q         |         |         |        V|     23+30       0.1336      0.00  Q         |         |         |        V|     23+35       0.1336      0.00  Q         |         |         |        V|     23+40       0.1336      0.00  Q         |         |         |        V|     23+45       0.1336      0.00  Q         |         |         |        V|     23+50       0.1336      0.00  Q         |         |         |        V|     23+55       0.1336      0.00  Q         |         |         |        V|     24+ 0       0.1336      0.00  Q         |         |         |        V|     24+ 5       0.1336      0.00  Q         |         |         |        V|     24+10       0.1336      0.00  Q         |         |         |        V|     24+15       0.1336      0.00  Q         |         |         |        V|     24+20       0.1336      0.00  Q         |         |         |        V|     24+25       0.1336      0.00  Q         |         |         |         V  ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ U n i t   H y d r o g r a p h    A n a l y s i s Copyright (c) CIVILCADD/CIVILDESIGN, 1989 ‐ 2004, Version 7.0 Study date  06/28/24 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ San Bernardino County Synthetic Unit Hydrology Method Manual date ‐ August 1986 Program License Serial Number 5016 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ JN 4113 UNIT HYDROGRAPH 10 YEAR 3 HOUR STORM  POST‐DEVELOPED ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Storm Event Year = 10 Antecedent Moisture Condition = 2  English (in‐lb) Input Units Used  English Rainfall Data (Inches) Input Values Used  English Units used in output format Area averaged rainfall intensity isohyetal data: Sub‐Area        Duration        Isohyetal (Ac.)            (hours)         (In) Rainfall data for year 10      3.98            1           0.92 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Rainfall data for year 10      3.98            6           0.41 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Rainfall data for year 10      3.98           24           0.19 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ ******** Area‐averaged max loss rate, Fm ******** SCS curve  SCS curve     Area     Area     Fp(Fig C6)    Ap      Fm No.(AMCII) NO.(AMC 2)    (Ac.)    Fraction     (In/Hr)  (dec.)   (In/Hr)  32.0      32.0          3.98      1.000     0.978    0.130    0.127 Area‐averaged adjusted loss rate Fm (In/Hr) =  0.127 ********* Area‐Averaged low loss rate fraction, Yb ********** Area       Area          SCS CN    SCS CN      S     Pervious  (Ac.)      Fract         (AMC2)    (AMC2)           Yield Fr      0.52   0.130         32.0      32.0       4.59     0.000      3.46   0.870         98.0      98.0       0.20     0.775 Area‐averaged catchment yield fraction, Y =  0.674 Area‐averaged low loss fraction, Yb =  0.326 User entry of time of concentration  =   0.176 (hours) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Watershed area =       3.98(Ac.) Catchment Lag time =   0.141 hours Unit interval =   5.000 minutes Unit interval percentage of lag time = 59.2125 Hydrograph baseflow =     0.00(CFS) Average maximum watershed loss rate(Fm) =  0.127(In/Hr) Average low loss rate fraction (Yb) = 0.326 (decimal) VALLEY DEVELOPED S‐Graph Selected Computed peak 5‐minute rainfall =  0.339(In) Computed peak 30‐minute rainfall =  0.693(In) Specified peak 1‐hour rainfall =  0.915(In) Computed peak 3‐hour rainfall =  0.915(In) Specified peak 6‐hour rainfall =  0.916(In) Specified peak 24‐hour rainfall =  0.917(In) Note: user specified rainfall values used. Rainfall depth area reduction factors: Using a total area of       3.98(Ac.) (Ref: fig. E‐4) 5‐minute factor = 1.000     Adjusted rainfall =  0.339(In) 30‐minute factor = 1.000    Adjusted rainfall =  0.693(In) 1‐hour factor = 1.000       Adjusted rainfall =  0.915(In) 3‐hour factor = 1.000       Adjusted rainfall =  0.915(In) 6‐hour factor = 1.000       Adjusted rainfall =  0.916(In) 24‐hour factor = 1.000      Adjusted rainfall =  0.917(In) ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ U n i t  H y d r o g r a p h  +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Interval          'S' Graph          Unit Hydrograph Number            Mean values             ((CFS)) ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ (K =        48.13 (CFS))   1                6.354                   3.058   2               40.669                  16.517   3               80.945                  19.386   4               95.214                   6.868   5               98.595                   1.627   6              100.000                   0.676 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Total soil rain loss =      0.13(In) Total effective rainfall =      0.79(In) Peak flow rate in flood hydrograph =      8.16(CFS) ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++                     3 ‐ H O U R    S T O R M                R u n o f f      H y d r o g r a p h ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐             Hydrograph in   5   Minute intervals ((CFS)) ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐   Time(h+m) Volume Ac.Ft   Q(CFS)  0        2.5       5.0       7.5      10.0   ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐     0+ 5       0.0000      0.00  Q         |         |         |         |      0+10       0.0000      0.00  Q         |         |         |         |      0+15       0.0000      0.00  Q         |         |         |         |      0+20       0.0000      0.00  Q         |         |         |         |      0+25       0.0000      0.00  Q         |         |         |         |      0+30       0.0000      0.00  Q         |         |         |         |      0+35       0.0000      0.00  Q         |         |         |         |      0+40       0.0000      0.00  Q         |         |         |         |      0+45       0.0000      0.00  Q         |         |         |         |      0+50       0.0000      0.00  Q         |         |         |         |      0+55       0.0000      0.00  Q         |         |         |         |      1+ 0       0.0000      0.00  Q         |         |         |         |      1+ 5       0.0000      0.00  Q         |         |         |         |      1+10       0.0000      0.00  Q         |         |         |         |      1+15       0.0000      0.00  Q         |         |         |         |      1+20       0.0000      0.00  Q         |         |         |         |      1+25       0.0005      0.06  Q         |         |         |         |      1+30       0.0033      0.42  VQ        |         |         |         |      1+35       0.0093      0.86  |V Q      |         |         |         |      1+40       0.0170      1.12  | V Q     |         |         |         |      1+45       0.0261      1.32  |  V Q    |         |         |         |      1+50       0.0370      1.58  |    VQ   |         |         |         |      1+55       0.0504      1.95  |      Q  |         |         |         |      2+ 0       0.0684      2.61  |         Q         |         |         |      2+ 5       0.0981      4.32  |         |    V Q  |         |         |      2+10       0.1535      8.04  |         |         |  V      | Q       |      2+15       0.2097      8.16  |         |         |         | Q       |      2+20       0.2380      4.12  |         |     Q   |         |     V   |      2+25       0.2520      2.02  |       Q |         |         |       V |      2+30       0.2589      1.01  |   Q     |         |         |        V|      2+35       0.2607      0.26  |Q        |         |         |        V|      2+40       0.2612      0.06  Q         |         |         |        V|      2+45       0.2613      0.02  Q         |         |         |        V|      2+50       0.2613      0.00  Q         |         |         |        V|      2+55       0.2613      0.00  Q         |         |         |        V|      3+ 0       0.2613      0.00  Q         |         |         |        V|      3+ 5       0.2613      0.00  Q         |         |         |        V|      3+10       0.2613      0.00  Q         |         |         |        V|      3+15       0.2613      0.00  Q         |         |         |        V|      3+20       0.2613      0.00  Q         |         |         |        V|      3+25       0.2613      0.00  Q         |         |         |         V  ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ U n i t   H y d r o g r a p h    A n a l y s i s Copyright (c) CIVILCADD/CIVILDESIGN, 1989 ‐ 2004, Version 7.0 Study date  06/28/24 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ San Bernardino County Synthetic Unit Hydrology Method Manual date ‐ August 1986 Program License Serial Number 5016 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ JN 4113 UNIT HYDROGRAPH 10 YEAR 24 HOUR STORM  POST‐DEVELOPED ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Storm Event Year = 10 Antecedent Moisture Condition = 2  English (in‐lb) Input Units Used  English Rainfall Data (Inches) Input Values Used  English Units used in output format Area averaged rainfall intensity isohyetal data: Sub‐Area        Duration        Isohyetal (Ac.)            (hours)         (In) Rainfall data for year 10      3.98            1           0.92 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Rainfall data for year 10      3.98            6           0.41 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Rainfall data for year 10      3.98           24           0.19 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ ******** Area‐averaged max loss rate, Fm ******** SCS curve  SCS curve     Area     Area     Fp(Fig C6)    Ap      Fm No.(AMCII) NO.(AMC 2)    (Ac.)    Fraction     (In/Hr)  (dec.)   (In/Hr)  32.0      32.0          3.98      1.000     0.978    0.130    0.127 Area‐averaged adjusted loss rate Fm (In/Hr) =  0.127 ********* Area‐Averaged low loss rate fraction, Yb ********** Area       Area          SCS CN    SCS CN      S     Pervious  (Ac.)      Fract         (AMC2)    (AMC2)           Yield Fr      0.52   0.130         32.0      32.0       4.59     0.000      3.46   0.870         98.0      98.0       0.20     0.775 Area‐averaged catchment yield fraction, Y =  0.674 Area‐averaged low loss fraction, Yb =  0.326 User entry of time of concentration  =   0.176 (hours) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Watershed area =       3.98(Ac.) Catchment Lag time =   0.141 hours Unit interval =   5.000 minutes Unit interval percentage of lag time = 59.2125 Hydrograph baseflow =     0.00(CFS) Average maximum watershed loss rate(Fm) =  0.127(In/Hr) Average low loss rate fraction (Yb) = 0.326 (decimal) VALLEY DEVELOPED S‐Graph Selected Computed peak 5‐minute rainfall =  0.339(In) Computed peak 30‐minute rainfall =  0.693(In) Specified peak 1‐hour rainfall =  0.915(In) Computed peak 3‐hour rainfall =  0.915(In) Specified peak 6‐hour rainfall =  0.916(In) Specified peak 24‐hour rainfall =  0.917(In) Note: user specified rainfall values used. Rainfall depth area reduction factors: Using a total area of       3.98(Ac.) (Ref: fig. E‐4) 5‐minute factor = 1.000     Adjusted rainfall =  0.339(In) 30‐minute factor = 1.000    Adjusted rainfall =  0.693(In) 1‐hour factor = 1.000       Adjusted rainfall =  0.915(In) 3‐hour factor = 1.000       Adjusted rainfall =  0.915(In) 6‐hour factor = 1.000       Adjusted rainfall =  0.916(In) 24‐hour factor = 1.000      Adjusted rainfall =  0.917(In) ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ U n i t  H y d r o g r a p h  +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Interval          'S' Graph          Unit Hydrograph Number            Mean values             ((CFS)) ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ (K =        48.13 (CFS))   1                6.354                   3.058   2               40.669                  16.517   3               80.945                  19.386   4               95.214                   6.868   5               98.595                   1.627   6              100.000                   0.676 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Total soil rain loss =      0.13(In) Total effective rainfall =      0.79(In) Peak flow rate in flood hydrograph =      8.16(CFS) ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++                     24 ‐ H O U R    S T O R M                R u n o f f      H y d r o g r a p h ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐             Hydrograph in   5   Minute intervals ((CFS)) ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐   Time(h+m) Volume Ac.Ft   Q(CFS)  0        2.5       5.0       7.5      10.0   ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐     0+ 5       0.0000      0.00  Q         |         |         |         |      0+10       0.0000      0.00  Q         |         |         |         |      0+15       0.0000      0.00  Q         |         |         |         |      0+20       0.0000      0.00  Q         |         |         |         |      0+25       0.0000      0.00  Q         |         |         |         |      0+30       0.0000      0.00  Q         |         |         |         |      0+35       0.0000      0.00  Q         |         |         |         |      0+40       0.0000      0.00  Q         |         |         |         |      0+45       0.0000      0.00  Q         |         |         |         |      0+50       0.0000      0.00  Q         |         |         |         |      0+55       0.0000      0.00  Q         |         |         |         |      1+ 0       0.0000      0.00  Q         |         |         |         |      1+ 5       0.0000      0.00  Q         |         |         |         |      1+10       0.0000      0.00  Q         |         |         |         |      1+15       0.0000      0.00  Q         |         |         |         |      1+20       0.0000      0.00  Q         |         |         |         |      1+25       0.0000      0.00  Q         |         |         |         |      1+30       0.0000      0.00  Q         |         |         |         |      1+35       0.0000      0.00  Q         |         |         |         |      1+40       0.0000      0.00  Q         |         |         |         |      1+45       0.0000      0.00  Q         |         |         |         |      1+50       0.0000      0.00  Q         |         |         |         |      1+55       0.0000      0.00  Q         |         |         |         |      2+ 0       0.0000      0.00  Q         |         |         |         |      2+ 5       0.0000      0.00  Q         |         |         |         |      2+10       0.0000      0.00  Q         |         |         |         |      2+15       0.0000      0.00  Q         |         |         |         |      2+20       0.0000      0.00  Q         |         |         |         |      2+25       0.0000      0.00  Q         |         |         |         |      2+30       0.0000      0.00  Q         |         |         |         |      2+35       0.0000      0.00  Q         |         |         |         |      2+40       0.0000      0.00  Q         |         |         |         |      2+45       0.0000      0.00  Q         |         |         |         |      2+50       0.0000      0.00  Q         |         |         |         |      2+55       0.0000      0.00  Q         |         |         |         |      3+ 0       0.0000      0.00  Q         |         |         |         |      3+ 5       0.0000      0.00  Q         |         |         |         |      3+10       0.0000      0.00  Q         |         |         |         |      3+15       0.0000      0.00  Q         |         |         |         |      3+20       0.0000      0.00  Q         |         |         |         |      3+25       0.0000      0.00  Q         |         |         |         |      3+30       0.0000      0.00  Q         |         |         |         |      3+35       0.0000      0.00  Q         |         |         |         |      3+40       0.0000      0.00  Q         |         |         |         |      3+45       0.0000      0.00  Q         |         |         |         |      3+50       0.0000      0.00  Q         |         |         |         |      3+55       0.0000      0.00  Q         |         |         |         |      4+ 0       0.0000      0.00  Q         |         |         |         |      4+ 5       0.0000      0.00  Q         |         |         |         |      4+10       0.0000      0.00  Q         |         |         |         |      4+15       0.0000      0.00  Q         |         |         |         |      4+20       0.0000      0.00  Q         |         |         |         |      4+25       0.0000      0.00  Q         |         |         |         |      4+30       0.0000      0.00  Q         |         |         |         |      4+35       0.0000      0.00  Q         |         |         |         |      4+40       0.0000      0.00  Q         |         |         |         |      4+45       0.0000      0.00  Q         |         |         |         |      4+50       0.0000      0.00  Q         |         |         |         |      4+55       0.0000      0.00  Q         |         |         |         |      5+ 0       0.0000      0.00  Q         |         |         |         |      5+ 5       0.0000      0.00  Q         |         |         |         |      5+10       0.0000      0.00  Q         |         |         |         |      5+15       0.0000      0.00  Q         |         |         |         |      5+20       0.0000      0.00  Q         |         |         |         |      5+25       0.0000      0.00  Q         |         |         |         |      5+30       0.0000      0.00  Q         |         |         |         |      5+35       0.0000      0.00  Q         |         |         |         |      5+40       0.0000      0.00  Q         |         |         |         |      5+45       0.0000      0.00  Q         |         |         |         |      5+50       0.0000      0.00  Q         |         |         |         |      5+55       0.0000      0.00  Q         |         |         |         |      6+ 0       0.0000      0.00  Q         |         |         |         |      6+ 5       0.0001      0.00  Q         |         |         |         |      6+10       0.0001      0.00  Q         |         |         |         |      6+15       0.0001      0.00  Q         |         |         |         |      6+20       0.0001      0.00  Q         |         |         |         |      6+25       0.0001      0.00  Q         |         |         |         |      6+30       0.0001      0.00  Q         |         |         |         |      6+35       0.0001      0.00  Q         |         |         |         |      6+40       0.0001      0.00  Q         |         |         |         |      6+45       0.0001      0.00  Q         |         |         |         |      6+50       0.0001      0.00  Q         |         |         |         |      6+55       0.0001      0.00  Q         |         |         |         |      7+ 0       0.0001      0.00  Q         |         |         |         |      7+ 5       0.0001      0.00  Q         |         |         |         |      7+10       0.0001      0.00  Q         |         |         |         |      7+15       0.0001      0.00  Q         |         |         |         |      7+20       0.0001      0.00  Q         |         |         |         |      7+25       0.0001      0.00  Q         |         |         |         |      7+30       0.0001      0.00  Q         |         |         |         |      7+35       0.0001      0.00  Q         |         |         |         |      7+40       0.0001      0.00  Q         |         |         |         |      7+45       0.0001      0.00  Q         |         |         |         |      7+50       0.0001      0.00  Q         |         |         |         |      7+55       0.0001      0.00  Q         |         |         |         |      8+ 0       0.0001      0.00  Q         |         |         |         |      8+ 5       0.0001      0.00  Q         |         |         |         |      8+10       0.0001      0.00  Q         |         |         |         |      8+15       0.0001      0.00  Q         |         |         |         |      8+20       0.0001      0.00  Q         |         |         |         |      8+25       0.0001      0.00  Q         |         |         |         |      8+30       0.0001      0.00  Q         |         |         |         |      8+35       0.0001      0.00  Q         |         |         |         |      8+40       0.0001      0.00  Q         |         |         |         |      8+45       0.0001      0.00  Q         |         |         |         |      8+50       0.0001      0.00  Q         |         |         |         |      8+55       0.0001      0.00  Q         |         |         |         |      9+ 0       0.0001      0.00  Q         |         |         |         |      9+ 5       0.0001      0.00  Q         |         |         |         |      9+10       0.0001      0.00  Q         |         |         |         |      9+15       0.0001      0.00  Q         |         |         |         |      9+20       0.0001      0.00  Q         |         |         |         |      9+25       0.0001      0.00  Q         |         |         |         |      9+30       0.0001      0.00  Q         |         |         |         |      9+35       0.0001      0.00  Q         |         |         |         |      9+40       0.0001      0.00  Q         |         |         |         |      9+45       0.0001      0.00  Q         |         |         |         |      9+50       0.0001      0.00  Q         |         |         |         |      9+55       0.0001      0.00  Q         |         |         |         |     10+ 0       0.0001      0.00  Q         |         |         |         |     10+ 5       0.0001      0.00  Q         |         |         |         |     10+10       0.0001      0.00  Q         |         |         |         |     10+15       0.0001      0.00  Q         |         |         |         |     10+20       0.0001      0.00  Q         |         |         |         |     10+25       0.0001      0.00  Q         |         |         |         |     10+30       0.0001      0.00  Q         |         |         |         |     10+35       0.0001      0.00  Q         |         |         |         |     10+40       0.0001      0.00  Q         |         |         |         |     10+45       0.0001      0.00  Q         |         |         |         |     10+50       0.0001      0.00  Q         |         |         |         |     10+55       0.0001      0.00  Q         |         |         |         |     11+ 0       0.0001      0.00  Q         |         |         |         |     11+ 5       0.0001      0.00  Q         |         |         |         |     11+10       0.0001      0.00  Q         |         |         |         |     11+15       0.0001      0.00  Q         |         |         |         |     11+20       0.0001      0.00  Q         |         |         |         |     11+25       0.0001      0.00  Q         |         |         |         |     11+30       0.0001      0.00  Q         |         |         |         |     11+35       0.0001      0.00  Q         |         |         |         |     11+40       0.0001      0.00  Q         |         |         |         |     11+45       0.0001      0.00  Q         |         |         |         |     11+50       0.0001      0.00  Q         |         |         |         |     11+55       0.0001      0.00  Q         |         |         |         |     12+ 0       0.0001      0.00  Q         |         |         |         |     12+ 5       0.0001      0.00  Q         |         |         |         |     12+10       0.0002      0.00  Q         |         |         |         |     12+15       0.0002      0.00  Q         |         |         |         |     12+20       0.0002      0.00  Q         |         |         |         |     12+25       0.0002      0.00  Q         |         |         |         |     12+30       0.0002      0.00  Q         |         |         |         |     12+35       0.0002      0.00  Q         |         |         |         |     12+40       0.0002      0.00  Q         |         |         |         |     12+45       0.0002      0.00  Q         |         |         |         |     12+50       0.0002      0.00  Q         |         |         |         |     12+55       0.0002      0.00  Q         |         |         |         |     13+ 0       0.0002      0.00  Q         |         |         |         |     13+ 5       0.0002      0.00  Q         |         |         |         |     13+10       0.0002      0.00  Q         |         |         |         |     13+15       0.0002      0.00  Q         |         |         |         |     13+20       0.0002      0.00  Q         |         |         |         |     13+25       0.0002      0.00  Q         |         |         |         |     13+30       0.0002      0.00  Q         |         |         |         |     13+35       0.0002      0.00  Q         |         |         |         |     13+40       0.0003      0.00  Q         |         |         |         |     13+45       0.0003      0.00  Q         |         |         |         |     13+50       0.0003      0.00  Q         |         |         |         |     13+55       0.0003      0.00  Q         |         |         |         |     14+ 0       0.0003      0.00  Q         |         |         |         |     14+ 5       0.0003      0.00  Q         |         |         |         |     14+10       0.0003      0.00  Q         |         |         |         |     14+15       0.0003      0.00  Q         |         |         |         |     14+20       0.0003      0.00  Q         |         |         |         |     14+25       0.0003      0.00  Q         |         |         |         |     14+30       0.0003      0.00  Q         |         |         |         |     14+35       0.0003      0.00  Q         |         |         |         |     14+40       0.0003      0.00  Q         |         |         |         |     14+45       0.0003      0.00  Q         |         |         |         |     14+50       0.0003      0.00  Q         |         |         |         |     14+55       0.0003      0.00  Q         |         |         |         |     15+ 0       0.0003      0.00  Q         |         |         |         |     15+ 5       0.0003      0.00  Q         |         |         |         |     15+10       0.0003      0.00  Q         |         |         |         |     15+15       0.0003      0.00  Q         |         |         |         |     15+20       0.0003      0.00  Q         |         |         |         |     15+25       0.0008      0.06  Q         |         |         |         |     15+30       0.0036      0.42  VQ        |         |         |         |     15+35       0.0096      0.86  |V Q      |         |         |         |     15+40       0.0173      1.12  | V Q     |         |         |         |     15+45       0.0264      1.32  |   VQ    |         |         |         |     15+50       0.0372      1.58  |    VQ   |         |         |         |     15+55       0.0507      1.95  |      Q  |         |         |         |     16+ 0       0.0687      2.61  |         Q         |         |         |     16+ 5       0.0984      4.32  |         |    V Q  |         |         |     16+10       0.1538      8.04  |         |         |  V      | Q       |     16+15       0.2099      8.16  |         |         |         | Q       |     16+20       0.2383      4.12  |         |     Q   |         |     V   |     16+25       0.2523      2.02  |       Q |         |         |       V |     16+30       0.2592      1.01  |   Q     |         |         |        V|     16+35       0.2610      0.26  |Q        |         |         |        V|     16+40       0.2615      0.06  Q         |         |         |        V|     16+45       0.2616      0.02  Q         |         |         |        V|     16+50       0.2616      0.00  Q         |         |         |        V|     16+55       0.2616      0.00  Q         |         |         |        V|     17+ 0       0.2616      0.00  Q         |         |         |        V|     17+ 5       0.2616      0.00  Q         |         |         |        V|     17+10       0.2616      0.00  Q         |         |         |        V|     17+15       0.2616      0.00  Q         |         |         |        V|     17+20       0.2616      0.00  Q         |         |         |        V|     17+25       0.2616      0.00  Q         |         |         |        V|     17+30       0.2616      0.00  Q         |         |         |        V|     17+35       0.2616      0.00  Q         |         |         |        V|     17+40       0.2616      0.00  Q         |         |         |        V|     17+45       0.2616      0.00  Q         |         |         |        V|     17+50       0.2616      0.00  Q         |         |         |        V|     17+55       0.2617      0.00  Q         |         |         |        V|     18+ 0       0.2617      0.00  Q         |         |         |        V|     18+ 5       0.2617      0.00  Q         |         |         |        V|     18+10       0.2617      0.00  Q         |         |         |        V|     18+15       0.2617      0.00  Q         |         |         |        V|     18+20       0.2617      0.00  Q         |         |         |        V|     18+25       0.2617      0.00  Q         |         |         |        V|     18+30       0.2617      0.00  Q         |         |         |        V|     18+35       0.2617      0.00  Q         |         |         |        V|     18+40       0.2617      0.00  Q         |         |         |        V|     18+45       0.2617      0.00  Q         |         |         |        V|     18+50       0.2617      0.00  Q         |         |         |        V|     18+55       0.2617      0.00  Q         |         |         |        V|     19+ 0       0.2617      0.00  Q         |         |         |        V|     19+ 5       0.2617      0.00  Q         |         |         |        V|     19+10       0.2617      0.00  Q         |         |         |        V|     19+15       0.2617      0.00  Q         |         |         |        V|     19+20       0.2617      0.00  Q         |         |         |        V|     19+25       0.2617      0.00  Q         |         |         |        V|     19+30       0.2617      0.00  Q         |         |         |        V|     19+35       0.2617      0.00  Q         |         |         |        V|     19+40       0.2617      0.00  Q         |         |         |        V|     19+45       0.2617      0.00  Q         |         |         |        V|     19+50       0.2617      0.00  Q         |         |         |        V|     19+55       0.2617      0.00  Q         |         |         |        V|     20+ 0       0.2617      0.00  Q         |         |         |        V|     20+ 5       0.2617      0.00  Q         |         |         |        V|     20+10       0.2617      0.00  Q         |         |         |        V|     20+15       0.2617      0.00  Q         |         |         |        V|     20+20       0.2617      0.00  Q         |         |         |        V|     20+25       0.2617      0.00  Q         |         |         |        V|     20+30       0.2617      0.00  Q         |         |         |        V|     20+35       0.2617      0.00  Q         |         |         |        V|     20+40       0.2617      0.00  Q         |         |         |        V|     20+45       0.2617      0.00  Q         |         |         |        V|     20+50       0.2617      0.00  Q         |         |         |        V|     20+55       0.2617      0.00  Q         |         |         |        V|     21+ 0       0.2617      0.00  Q         |         |         |        V|     21+ 5       0.2617      0.00  Q         |         |         |        V|     21+10       0.2617      0.00  Q         |         |         |        V|     21+15       0.2617      0.00  Q         |         |         |        V|     21+20       0.2617      0.00  Q         |         |         |        V|     21+25       0.2617      0.00  Q         |         |         |        V|     21+30       0.2617      0.00  Q         |         |         |        V|     21+35       0.2617      0.00  Q         |         |         |        V|     21+40       0.2617      0.00  Q         |         |         |        V|     21+45       0.2617      0.00  Q         |         |         |        V|     21+50       0.2617      0.00  Q         |         |         |        V|     21+55       0.2617      0.00  Q         |         |         |        V|     22+ 0       0.2617      0.00  Q         |         |         |        V|     22+ 5       0.2617      0.00  Q         |         |         |        V|     22+10       0.2617      0.00  Q         |         |         |        V|     22+15       0.2617      0.00  Q         |         |         |        V|     22+20       0.2617      0.00  Q         |         |         |        V|     22+25       0.2617      0.00  Q         |         |         |        V|     22+30       0.2617      0.00  Q         |         |         |        V|     22+35       0.2617      0.00  Q         |         |         |        V|     22+40       0.2617      0.00  Q         |         |         |        V|     22+45       0.2617      0.00  Q         |         |         |        V|     22+50       0.2617      0.00  Q         |         |         |        V|     22+55       0.2617      0.00  Q         |         |         |        V|     23+ 0       0.2617      0.00  Q         |         |         |        V|     23+ 5       0.2617      0.00  Q         |         |         |        V|     23+10       0.2617      0.00  Q         |         |         |        V|     23+15       0.2617      0.00  Q         |         |         |        V|     23+20       0.2617      0.00  Q         |         |         |        V|     23+25       0.2617      0.00  Q         |         |         |        V|     23+30       0.2617      0.00  Q         |         |         |        V|     23+35       0.2617      0.00  Q         |         |         |        V|     23+40       0.2617      0.00  Q         |         |         |        V|     23+45       0.2617      0.00  Q         |         |         |        V|     23+50       0.2617      0.00  Q         |         |         |        V|     23+55       0.2617      0.00  Q         |         |         |        V|     24+ 0       0.2617      0.00  Q         |         |         |        V|     24+ 5       0.2617      0.00  Q         |         |         |        V|     24+10       0.2617      0.00  Q         |         |         |        V|     24+15       0.2617      0.00  Q         |         |         |        V|     24+20       0.2617      0.00  Q         |         |         |        V|     24+25       0.2617      0.00  Q         |         |         |        V|  ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ U n i t   H y d r o g r a p h    A n a l y s i s Copyright (c) CIVILCADD/CIVILDESIGN, 1989 ‐ 2004, Version 7.0 Study date  07/24/24 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ San Bernardino County Synthetic Unit Hydrology Method Manual date ‐ August 1986 Program License Serial Number 5016 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ JN 4113 UNIT HYDROGRAPH 25 YEAR 3 HOUR STORM  POST‐DEVELOPED ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Storm Event Year = 25 Antecedent Moisture Condition = 2  English (in‐lb) Input Units Used  English Rainfall Data (Inches) Input Values Used  English Units used in output format Area averaged rainfall intensity isohyetal data: Sub‐Area        Duration        Isohyetal (Ac.)            (hours)         (In) Rainfall data for year 10      3.98            1           0.92 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Rainfall data for year 2      3.98            6           0.27 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Rainfall data for year 2      3.98           24           0.13 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Rainfall data for year 100      3.98            1           1.48 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Rainfall data for year 100      3.98            6           0.62 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Rainfall data for year 100      3.98           24           0.29 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ ******** Area‐averaged max loss rate, Fm ******** SCS curve  SCS curve     Area     Area     Fp(Fig C6)    Ap      Fm No.(AMCII) NO.(AMC 2)    (Ac.)    Fraction     (In/Hr)  (dec.)   (In/Hr)  32.0      32.0          3.98      1.000     0.978    0.130    0.127 Area‐averaged adjusted loss rate Fm (In/Hr) =  0.127 ********* Area‐Averaged low loss rate fraction, Yb ********** Area       Area          SCS CN    SCS CN      S     Pervious  (Ac.)      Fract         (AMC2)    (AMC2)           Yield Fr      0.52   0.130         32.0      32.0       5.71     0.000      3.46   0.870         98.0      98.0       0.20     0.813 Area‐averaged catchment yield fraction, Y =  0.708 Area‐averaged low loss fraction, Yb =  0.292 User entry of time of concentration  =   0.175 (hours) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Watershed area =       3.98(Ac.) Catchment Lag time =   0.140 hours Unit interval =   5.000 minutes Unit interval percentage of lag time = 59.4219 Hydrograph baseflow =     0.00(CFS) Average maximum watershed loss rate(Fm) =  0.127(In/Hr) Average low loss rate fraction (Yb) = 0.292 (decimal) VALLEY DEVELOPED S‐Graph Selected Computed peak 5‐minute rainfall =  0.422(In) Computed peak 30‐minute rainfall =  0.864(In) Specified peak 1‐hour rainfall =  1.140(In) Computed peak 3‐hour rainfall =  1.140(In) Specified peak 6‐hour rainfall =  1.141(In) Specified peak 24‐hour rainfall =  1.142(In) Note: user specified rainfall values used. Rainfall depth area reduction factors: Using a total area of       3.98(Ac.) (Ref: fig. E‐4) 5‐minute factor = 1.000     Adjusted rainfall =  0.422(In) 30‐minute factor = 1.000    Adjusted rainfall =  0.864(In) 1‐hour factor = 1.000       Adjusted rainfall =  1.140(In) 3‐hour factor = 1.000       Adjusted rainfall =  1.140(In) 6‐hour factor = 1.000       Adjusted rainfall =  1.141(In) 24‐hour factor = 1.000      Adjusted rainfall =  1.142(In) ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ U n i t  H y d r o g r a p h  +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Interval          'S' Graph          Unit Hydrograph Number            Mean values             ((CFS)) ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ (K =        48.13 (CFS))   1                6.397                   3.079   2               40.927                  16.620   3               81.152                  19.361   4               95.299                   6.810   5               98.613                   1.595   6              100.000                   0.668 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Total soil rain loss =      0.13(In) Total effective rainfall =      1.01(In) Peak flow rate in flood hydrograph =     10.27(CFS) ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++                     3 ‐ H O U R    S T O R M                R u n o f f      H y d r o g r a p h ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐             Hydrograph in   5   Minute intervals ((CFS)) ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐   Time(h+m) Volume Ac.Ft   Q(CFS)  0        5.0      10.0      15.0      20.0   ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐     0+ 5       0.0000      0.00  Q         |         |         |         |      0+10       0.0000      0.00  Q         |         |         |         |      0+15       0.0000      0.00  Q         |         |         |         |      0+20       0.0000      0.00  Q         |         |         |         |      0+25       0.0000      0.00  Q         |         |         |         |      0+30       0.0000      0.00  Q         |         |         |         |      0+35       0.0000      0.00  Q         |         |         |         |      0+40       0.0000      0.00  Q         |         |         |         |      0+45       0.0000      0.00  Q         |         |         |         |      0+50       0.0000      0.00  Q         |         |         |         |      0+55       0.0000      0.00  Q         |         |         |         |      1+ 0       0.0000      0.00  Q         |         |         |         |      1+ 5       0.0000      0.00  Q         |         |         |         |      1+10       0.0000      0.00  Q         |         |         |         |      1+15       0.0000      0.00  Q         |         |         |         |      1+20       0.0000      0.00  Q         |         |         |         |      1+25       0.0006      0.09  Q         |         |         |         |      1+30       0.0045      0.57  VQ        |         |         |         |      1+35       0.0126      1.17  |VQ       |         |         |         |      1+40       0.0230      1.51  | VQ      |         |         |         |      1+45       0.0352      1.77  |  QV     |         |         |         |      1+50       0.0496      2.10  |   QV    |         |         |         |      1+55       0.0672      2.55  |    Q  V |         |         |         |      2+ 0       0.0905      3.39  |     Q   V         |         |         |      2+ 5       0.1285      5.52  |         |Q   V    |         |         |      2+10       0.1986     10.17  |         |         Q  V      |         |      2+15       0.2693     10.27  |         |         Q         | V       |      2+20       0.3054      5.24  |         Q         |         |     V   |      2+25       0.3234      2.62  |    Q    |         |         |       V |      2+30       0.3326      1.33  | Q       |         |         |        V|      2+35       0.3350      0.34  Q         |         |         |        V|      2+40       0.3355      0.08  Q         |         |         |        V|      2+45       0.3357      0.02  Q         |         |         |        V|      2+50       0.3357      0.00  Q         |         |         |        V|      2+55       0.3357      0.00  Q         |         |         |        V|      3+ 0       0.3357      0.00  Q         |         |         |        V|      3+ 5       0.3357      0.00  Q         |         |         |        V|      3+10       0.3357      0.00  Q         |         |         |        V|      3+15       0.3357      0.00  Q         |         |         |        V|      3+20       0.3357      0.00  Q         |         |         |        V|      3+25       0.3357      0.00  Q         |         |         |        V|  ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ U n i t   H y d r o g r a p h    A n a l y s i s Copyright (c) CIVILCADD/CIVILDESIGN, 1989 ‐ 2004, Version 7.0 Study date  07/24/24 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ San Bernardino County Synthetic Unit Hydrology Method Manual date ‐ August 1986 Program License Serial Number 5016 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ JN 4113 UNIT HYDROGRAPH 25 YEAR 24 HOUR STORM  POST‐DEVELOPED ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Storm Event Year = 25 Antecedent Moisture Condition = 2  English (in‐lb) Input Units Used  English Rainfall Data (Inches) Input Values Used  English Units used in output format Area averaged rainfall intensity isohyetal data: Sub‐Area        Duration        Isohyetal (Ac.)            (hours)         (In) Rainfall data for year 10      3.98            1           0.92 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Rainfall data for year 2      3.98            6           0.27 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Rainfall data for year 2      3.98           24           0.13 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Rainfall data for year 100      3.98            1           1.48 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Rainfall data for year 100      3.98            6           0.62 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Rainfall data for year 100      3.98           24           0.29 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ ******** Area‐averaged max loss rate, Fm ******** SCS curve  SCS curve     Area     Area     Fp(Fig C6)    Ap      Fm No.(AMCII) NO.(AMC 2)    (Ac.)    Fraction     (In/Hr)  (dec.)   (In/Hr)  32.0      32.0          3.98      1.000     0.978    0.130    0.127 Area‐averaged adjusted loss rate Fm (In/Hr) =  0.127 ********* Area‐Averaged low loss rate fraction, Yb ********** Area       Area          SCS CN    SCS CN      S     Pervious  (Ac.)      Fract         (AMC2)    (AMC2)           Yield Fr      0.52   0.130         32.0      32.0       5.71     0.000      3.46   0.870         98.0      98.0       0.20     0.813 Area‐averaged catchment yield fraction, Y =  0.708 Area‐averaged low loss fraction, Yb =  0.292 User entry of time of concentration  =   0.175 (hours) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Watershed area =       3.98(Ac.) Catchment Lag time =   0.140 hours Unit interval =   5.000 minutes Unit interval percentage of lag time = 59.4219 Hydrograph baseflow =     0.00(CFS) Average maximum watershed loss rate(Fm) =  0.127(In/Hr) Average low loss rate fraction (Yb) = 0.292 (decimal) VALLEY DEVELOPED S‐Graph Selected Computed peak 5‐minute rainfall =  0.422(In) Computed peak 30‐minute rainfall =  0.864(In) Specified peak 1‐hour rainfall =  1.140(In) Computed peak 3‐hour rainfall =  1.140(In) Specified peak 6‐hour rainfall =  1.141(In) Specified peak 24‐hour rainfall =  1.142(In) Note: user specified rainfall values used. Rainfall depth area reduction factors: Using a total area of       3.98(Ac.) (Ref: fig. E‐4) 5‐minute factor = 1.000     Adjusted rainfall =  0.422(In) 30‐minute factor = 1.000    Adjusted rainfall =  0.864(In) 1‐hour factor = 1.000       Adjusted rainfall =  1.140(In) 3‐hour factor = 1.000       Adjusted rainfall =  1.140(In) 6‐hour factor = 1.000       Adjusted rainfall =  1.141(In) 24‐hour factor = 1.000      Adjusted rainfall =  1.142(In) ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ U n i t  H y d r o g r a p h  +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Interval          'S' Graph          Unit Hydrograph Number            Mean values             ((CFS)) ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ (K =        48.13 (CFS))   1                6.397                   3.079   2               40.927                  16.620   3               81.152                  19.361   4               95.299                   6.810   5               98.613                   1.595   6              100.000                   0.668 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Total soil rain loss =      0.13(In) Total effective rainfall =      1.01(In) Peak flow rate in flood hydrograph =     10.27(CFS) ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++                     24 ‐ H O U R    S T O R M                R u n o f f      H y d r o g r a p h ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐             Hydrograph in   5   Minute intervals ((CFS)) ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐   Time(h+m) Volume Ac.Ft   Q(CFS)  0        5.0      10.0      15.0      20.0   ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐     0+ 5       0.0000      0.00  Q         |         |         |         |      0+10       0.0000      0.00  Q         |         |         |         |      0+15       0.0000      0.00  Q         |         |         |         |      0+20       0.0000      0.00  Q         |         |         |         |      0+25       0.0000      0.00  Q         |         |         |         |      0+30       0.0000      0.00  Q         |         |         |         |      0+35       0.0000      0.00  Q         |         |         |         |      0+40       0.0000      0.00  Q         |         |         |         |      0+45       0.0000      0.00  Q         |         |         |         |      0+50       0.0000      0.00  Q         |         |         |         |      0+55       0.0000      0.00  Q         |         |         |         |      1+ 0       0.0000      0.00  Q         |         |         |         |      1+ 5       0.0000      0.00  Q         |         |         |         |      1+10       0.0000      0.00  Q         |         |         |         |      1+15       0.0000      0.00  Q         |         |         |         |      1+20       0.0000      0.00  Q         |         |         |         |      1+25       0.0000      0.00  Q         |         |         |         |      1+30       0.0000      0.00  Q         |         |         |         |      1+35       0.0000      0.00  Q         |         |         |         |      1+40       0.0000      0.00  Q         |         |         |         |      1+45       0.0000      0.00  Q         |         |         |         |      1+50       0.0000      0.00  Q         |         |         |         |      1+55       0.0000      0.00  Q         |         |         |         |      2+ 0       0.0000      0.00  Q         |         |         |         |      2+ 5       0.0000      0.00  Q         |         |         |         |      2+10       0.0000      0.00  Q         |         |         |         |      2+15       0.0000      0.00  Q         |         |         |         |      2+20       0.0000      0.00  Q         |         |         |         |      2+25       0.0000      0.00  Q         |         |         |         |      2+30       0.0000      0.00  Q         |         |         |         |      2+35       0.0000      0.00  Q         |         |         |         |      2+40       0.0000      0.00  Q         |         |         |         |      2+45       0.0000      0.00  Q         |         |         |         |      2+50       0.0000      0.00  Q         |         |         |         |      2+55       0.0000      0.00  Q         |         |         |         |      3+ 0       0.0000      0.00  Q         |         |         |         |      3+ 5       0.0000      0.00  Q         |         |         |         |      3+10       0.0000      0.00  Q         |         |         |         |      3+15       0.0000      0.00  Q         |         |         |         |      3+20       0.0000      0.00  Q         |         |         |         |      3+25       0.0000      0.00  Q         |         |         |         |      3+30       0.0000      0.00  Q         |         |         |         |      3+35       0.0000      0.00  Q         |         |         |         |      3+40       0.0000      0.00  Q         |         |         |         |      3+45       0.0000      0.00  Q         |         |         |         |      3+50       0.0000      0.00  Q         |         |         |         |      3+55       0.0000      0.00  Q         |         |         |         |      4+ 0       0.0000      0.00  Q         |         |         |         |      4+ 5       0.0000      0.00  Q         |         |         |         |      4+10       0.0000      0.00  Q         |         |         |         |      4+15       0.0000      0.00  Q         |         |         |         |      4+20       0.0000      0.00  Q         |         |         |         |      4+25       0.0000      0.00  Q         |         |         |         |      4+30       0.0000      0.00  Q         |         |         |         |      4+35       0.0000      0.00  Q         |         |         |         |      4+40       0.0000      0.00  Q         |         |         |         |      4+45       0.0000      0.00  Q         |         |         |         |      4+50       0.0000      0.00  Q         |         |         |         |      4+55       0.0000      0.00  Q         |         |         |         |      5+ 0       0.0000      0.00  Q         |         |         |         |      5+ 5       0.0000      0.00  Q         |         |         |         |      5+10       0.0000      0.00  Q         |         |         |         |      5+15       0.0000      0.00  Q         |         |         |         |      5+20       0.0000      0.00  Q         |         |         |         |      5+25       0.0000      0.00  Q         |         |         |         |      5+30       0.0000      0.00  Q         |         |         |         |      5+35       0.0000      0.00  Q         |         |         |         |      5+40       0.0000      0.00  Q         |         |         |         |      5+45       0.0000      0.00  Q         |         |         |         |      5+50       0.0000      0.00  Q         |         |         |         |      5+55       0.0001      0.00  Q         |         |         |         |      6+ 0       0.0001      0.00  Q         |         |         |         |      6+ 5       0.0001      0.00  Q         |         |         |         |      6+10       0.0001      0.00  Q         |         |         |         |      6+15       0.0001      0.00  Q         |         |         |         |      6+20       0.0001      0.00  Q         |         |         |         |      6+25       0.0001      0.00  Q         |         |         |         |      6+30       0.0001      0.00  Q         |         |         |         |      6+35       0.0001      0.00  Q         |         |         |         |      6+40       0.0001      0.00  Q         |         |         |         |      6+45       0.0001      0.00  Q         |         |         |         |      6+50       0.0001      0.00  Q         |         |         |         |      6+55       0.0001      0.00  Q         |         |         |         |      7+ 0       0.0001      0.00  Q         |         |         |         |      7+ 5       0.0001      0.00  Q         |         |         |         |      7+10       0.0001      0.00  Q         |         |         |         |      7+15       0.0001      0.00  Q         |         |         |         |      7+20       0.0001      0.00  Q         |         |         |         |      7+25       0.0001      0.00  Q         |         |         |         |      7+30       0.0001      0.00  Q         |         |         |         |      7+35       0.0001      0.00  Q         |         |         |         |      7+40       0.0001      0.00  Q         |         |         |         |      7+45       0.0001      0.00  Q         |         |         |         |      7+50       0.0001      0.00  Q         |         |         |         |      7+55       0.0001      0.00  Q         |         |         |         |      8+ 0       0.0001      0.00  Q         |         |         |         |      8+ 5       0.0001      0.00  Q         |         |         |         |      8+10       0.0001      0.00  Q         |         |         |         |      8+15       0.0001      0.00  Q         |         |         |         |      8+20       0.0001      0.00  Q         |         |         |         |      8+25       0.0001      0.00  Q         |         |         |         |      8+30       0.0001      0.00  Q         |         |         |         |      8+35       0.0001      0.00  Q         |         |         |         |      8+40       0.0001      0.00  Q         |         |         |         |      8+45       0.0001      0.00  Q         |         |         |         |      8+50       0.0001      0.00  Q         |         |         |         |      8+55       0.0001      0.00  Q         |         |         |         |      9+ 0       0.0001      0.00  Q         |         |         |         |      9+ 5       0.0001      0.00  Q         |         |         |         |      9+10       0.0001      0.00  Q         |         |         |         |      9+15       0.0001      0.00  Q         |         |         |         |      9+20       0.0001      0.00  Q         |         |         |         |      9+25       0.0001      0.00  Q         |         |         |         |      9+30       0.0001      0.00  Q         |         |         |         |      9+35       0.0001      0.00  Q         |         |         |         |      9+40       0.0001      0.00  Q         |         |         |         |      9+45       0.0001      0.00  Q         |         |         |         |      9+50       0.0001      0.00  Q         |         |         |         |      9+55       0.0001      0.00  Q         |         |         |         |     10+ 0       0.0001      0.00  Q         |         |         |         |     10+ 5       0.0001      0.00  Q         |         |         |         |     10+10       0.0001      0.00  Q         |         |         |         |     10+15       0.0001      0.00  Q         |         |         |         |     10+20       0.0001      0.00  Q         |         |         |         |     10+25       0.0001      0.00  Q         |         |         |         |     10+30       0.0001      0.00  Q         |         |         |         |     10+35       0.0001      0.00  Q         |         |         |         |     10+40       0.0001      0.00  Q         |         |         |         |     10+45       0.0001      0.00  Q         |         |         |         |     10+50       0.0001      0.00  Q         |         |         |         |     10+55       0.0001      0.00  Q         |         |         |         |     11+ 0       0.0001      0.00  Q         |         |         |         |     11+ 5       0.0001      0.00  Q         |         |         |         |     11+10       0.0001      0.00  Q         |         |         |         |     11+15       0.0001      0.00  Q         |         |         |         |     11+20       0.0001      0.00  Q         |         |         |         |     11+25       0.0001      0.00  Q         |         |         |         |     11+30       0.0001      0.00  Q         |         |         |         |     11+35       0.0001      0.00  Q         |         |         |         |     11+40       0.0001      0.00  Q         |         |         |         |     11+45       0.0001      0.00  Q         |         |         |         |     11+50       0.0001      0.00  Q         |         |         |         |     11+55       0.0002      0.00  Q         |         |         |         |     12+ 0       0.0002      0.00  Q         |         |         |         |     12+ 5       0.0002      0.00  Q         |         |         |         |     12+10       0.0002      0.00  Q         |         |         |         |     12+15       0.0002      0.00  Q         |         |         |         |     12+20       0.0002      0.00  Q         |         |         |         |     12+25       0.0002      0.00  Q         |         |         |         |     12+30       0.0002      0.00  Q         |         |         |         |     12+35       0.0002      0.00  Q         |         |         |         |     12+40       0.0002      0.00  Q         |         |         |         |     12+45       0.0002      0.00  Q         |         |         |         |     12+50       0.0002      0.00  Q         |         |         |         |     12+55       0.0002      0.00  Q         |         |         |         |     13+ 0       0.0002      0.00  Q         |         |         |         |     13+ 5       0.0002      0.00  Q         |         |         |         |     13+10       0.0002      0.00  Q         |         |         |         |     13+15       0.0002      0.00  Q         |         |         |         |     13+20       0.0002      0.00  Q         |         |         |         |     13+25       0.0002      0.00  Q         |         |         |         |     13+30       0.0003      0.00  Q         |         |         |         |     13+35       0.0003      0.00  Q         |         |         |         |     13+40       0.0003      0.00  Q         |         |         |         |     13+45       0.0003      0.00  Q         |         |         |         |     13+50       0.0003      0.00  Q         |         |         |         |     13+55       0.0003      0.00  Q         |         |         |         |     14+ 0       0.0003      0.00  Q         |         |         |         |     14+ 5       0.0003      0.00  Q         |         |         |         |     14+10       0.0003      0.00  Q         |         |         |         |     14+15       0.0003      0.00  Q         |         |         |         |     14+20       0.0003      0.00  Q         |         |         |         |     14+25       0.0003      0.00  Q         |         |         |         |     14+30       0.0003      0.00  Q         |         |         |         |     14+35       0.0003      0.00  Q         |         |         |         |     14+40       0.0003      0.00  Q         |         |         |         |     14+45       0.0003      0.00  Q         |         |         |         |     14+50       0.0003      0.00  Q         |         |         |         |     14+55       0.0003      0.00  Q         |         |         |         |     15+ 0       0.0003      0.00  Q         |         |         |         |     15+ 5       0.0003      0.00  Q         |         |         |         |     15+10       0.0003      0.00  Q         |         |         |         |     15+15       0.0003      0.00  Q         |         |         |         |     15+20       0.0003      0.00  Q         |         |         |         |     15+25       0.0009      0.09  Q         |         |         |         |     15+30       0.0048      0.57  VQ        |         |         |         |     15+35       0.0129      1.17  |VQ       |         |         |         |     15+40       0.0233      1.51  | VQ      |         |         |         |     15+45       0.0355      1.77  |  QV     |         |         |         |     15+50       0.0499      2.10  |   QV    |         |         |         |     15+55       0.0675      2.55  |    Q  V |         |         |         |     16+ 0       0.0908      3.39  |     Q   V         |         |         |     16+ 5       0.1289      5.52  |         |Q   V    |         |         |     16+10       0.1989     10.17  |         |         Q  V      |         |     16+15       0.2697     10.27  |         |         Q         | V       |     16+20       0.3057      5.24  |         Q         |         |     V   |     16+25       0.3238      2.62  |    Q    |         |         |       V |     16+30       0.3329      1.33  | Q       |         |         |        V|     16+35       0.3353      0.34  Q         |         |         |        V|     16+40       0.3358      0.08  Q         |         |         |        V|     16+45       0.3360      0.02  Q         |         |         |        V|     16+50       0.3360      0.00  Q         |         |         |        V|     16+55       0.3360      0.00  Q         |         |         |        V|     17+ 0       0.3360      0.00  Q         |         |         |        V|     17+ 5       0.3360      0.00  Q         |         |         |        V|     17+10       0.3360      0.00  Q         |         |         |        V|     17+15       0.3360      0.00  Q         |         |         |        V|     17+20       0.3360      0.00  Q         |         |         |        V|     17+25       0.3360      0.00  Q         |         |         |        V|     17+30       0.3360      0.00  Q         |         |         |        V|     17+35       0.3360      0.00  Q         |         |         |        V|     17+40       0.3360      0.00  Q         |         |         |        V|     17+45       0.3361      0.00  Q         |         |         |        V|     17+50       0.3361      0.00  Q         |         |         |        V|     17+55       0.3361      0.00  Q         |         |         |        V|     18+ 0       0.3361      0.00  Q         |         |         |        V|     18+ 5       0.3361      0.00  Q         |         |         |        V|     18+10       0.3361      0.00  Q         |         |         |        V|     18+15       0.3361      0.00  Q         |         |         |        V|     18+20       0.3361      0.00  Q         |         |         |        V|     18+25       0.3361      0.00  Q         |         |         |        V|     18+30       0.3361      0.00  Q         |         |         |        V|     18+35       0.3361      0.00  Q         |         |         |        V|     18+40       0.3361      0.00  Q         |         |         |        V|     18+45       0.3361      0.00  Q         |         |         |        V|     18+50       0.3361      0.00  Q         |         |         |        V|     18+55       0.3361      0.00  Q         |         |         |        V|     19+ 0       0.3361      0.00  Q         |         |         |        V|     19+ 5       0.3361      0.00  Q         |         |         |        V|     19+10       0.3361      0.00  Q         |         |         |        V|     19+15       0.3361      0.00  Q         |         |         |        V|     19+20       0.3361      0.00  Q         |         |         |        V|     19+25       0.3361      0.00  Q         |         |         |        V|     19+30       0.3361      0.00  Q         |         |         |        V|     19+35       0.3361      0.00  Q         |         |         |        V|     19+40       0.3361      0.00  Q         |         |         |        V|     19+45       0.3361      0.00  Q         |         |         |        V|     19+50       0.3361      0.00  Q         |         |         |        V|     19+55       0.3361      0.00  Q         |         |         |        V|     20+ 0       0.3361      0.00  Q         |         |         |        V|     20+ 5       0.3361      0.00  Q         |         |         |        V|     20+10       0.3361      0.00  Q         |         |         |        V|     20+15       0.3361      0.00  Q         |         |         |        V|     20+20       0.3361      0.00  Q         |         |         |        V|     20+25       0.3361      0.00  Q         |         |         |        V|     20+30       0.3361      0.00  Q         |         |         |        V|     20+35       0.3361      0.00  Q         |         |         |        V|     20+40       0.3361      0.00  Q         |         |         |        V|     20+45       0.3361      0.00  Q         |         |         |        V|     20+50       0.3361      0.00  Q         |         |         |        V|     20+55       0.3361      0.00  Q         |         |         |        V|     21+ 0       0.3361      0.00  Q         |         |         |        V|     21+ 5       0.3361      0.00  Q         |         |         |        V|     21+10       0.3361      0.00  Q         |         |         |        V|     21+15       0.3361      0.00  Q         |         |         |        V|     21+20       0.3361      0.00  Q         |         |         |        V|     21+25       0.3361      0.00  Q         |         |         |        V|     21+30       0.3361      0.00  Q         |         |         |        V|     21+35       0.3361      0.00  Q         |         |         |        V|     21+40       0.3361      0.00  Q         |         |         |        V|     21+45       0.3361      0.00  Q         |         |         |        V|     21+50       0.3361      0.00  Q         |         |         |        V|     21+55       0.3361      0.00  Q         |         |         |        V|     22+ 0       0.3361      0.00  Q         |         |         |        V|     22+ 5       0.3361      0.00  Q         |         |         |        V|     22+10       0.3361      0.00  Q         |         |         |        V|     22+15       0.3361      0.00  Q         |         |         |        V|     22+20       0.3361      0.00  Q         |         |         |        V|     22+25       0.3361      0.00  Q         |         |         |        V|     22+30       0.3361      0.00  Q         |         |         |        V|     22+35       0.3361      0.00  Q         |         |         |        V|     22+40       0.3361      0.00  Q         |         |         |        V|     22+45       0.3361      0.00  Q         |         |         |        V|     22+50       0.3361      0.00  Q         |         |         |        V|     22+55       0.3362      0.00  Q         |         |         |        V|     23+ 0       0.3362      0.00  Q         |         |         |        V|     23+ 5       0.3362      0.00  Q         |         |         |        V|     23+10       0.3362      0.00  Q         |         |         |        V|     23+15       0.3362      0.00  Q         |         |         |        V|     23+20       0.3362      0.00  Q         |         |         |        V|     23+25       0.3362      0.00  Q         |         |         |        V|     23+30       0.3362      0.00  Q         |         |         |        V|     23+35       0.3362      0.00  Q         |         |         |        V|     23+40       0.3362      0.00  Q         |         |         |        V|     23+45       0.3362      0.00  Q         |         |         |        V|     23+50       0.3362      0.00  Q         |         |         |        V|     23+55       0.3362      0.00  Q         |         |         |        V|     24+ 0       0.3362      0.00  Q         |         |         |        V|     24+ 5       0.3362      0.00  Q         |         |         |        V|     24+10       0.3362      0.00  Q         |         |         |        V|     24+15       0.3362      0.00  Q         |         |         |        V|     24+20       0.3362      0.00  Q         |         |         |        V|     24+25       0.3362      0.00  Q         |         |         |        V|  ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ U n i t   H y d r o g r a p h    A n a l y s i s Copyright (c) CIVILCADD/CIVILDESIGN, 1989 ‐ 2004, Version 7.0 Study date  06/28/24 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ San Bernardino County Synthetic Unit Hydrology Method Manual date ‐ August 1986 Program License Serial Number 5016 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ JN 4113 UNIT HYDROGRAPH 100 YEAR 3 HOUR STORM  POST‐DEVELOPED ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Storm Event Year = 100 Antecedent Moisture Condition = 3  English (in‐lb) Input Units Used  English Rainfall Data (Inches) Input Values Used  English Units used in output format Area averaged rainfall intensity isohyetal data: Sub‐Area        Duration        Isohyetal (Ac.)            (hours)         (In) Rainfall data for year 100      3.98            1           1.48 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Rainfall data for year 100      3.98            6           0.62 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Rainfall data for year 100      3.98           24           0.29 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ ******** Area‐averaged max loss rate, Fm ******** SCS curve  SCS curve     Area     Area     Fp(Fig C6)    Ap      Fm No.(AMCII) NO.(AMC 3)    (Ac.)    Fraction     (In/Hr)  (dec.)   (In/Hr)  32.0      52.0          3.98      1.000     0.785    0.130    0.102 Area‐averaged adjusted loss rate Fm (In/Hr) =  0.102 ********* Area‐Averaged low loss rate fraction, Yb ********** Area       Area          SCS CN    SCS CN      S     Pervious  (Ac.)      Fract         (AMC2)    (AMC3)           Yield Fr      0.52   0.130         32.0      52.0       7.41     0.000      3.46   0.870         98.0      98.0       0.20     0.852 Area‐averaged catchment yield fraction, Y =  0.741 Area‐averaged low loss fraction, Yb =  0.259 User entry of time of concentration  =   0.175 (hours) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Watershed area =       3.98(Ac.) Catchment Lag time =   0.140 hours Unit interval =   5.000 minutes Unit interval percentage of lag time = 59.6329 Hydrograph baseflow =     0.00(CFS) Average maximum watershed loss rate(Fm) =  0.102(In/Hr) Average low loss rate fraction (Yb) = 0.259 (decimal) VALLEY DEVELOPED S‐Graph Selected Computed peak 5‐minute rainfall =  0.548(In) Computed peak 30‐minute rainfall =  1.122(In) Specified peak 1‐hour rainfall =  1.480(In) Computed peak 3‐hour rainfall =  1.480(In) Specified peak 6‐hour rainfall =  1.481(In) Specified peak 24‐hour rainfall =  1.482(In) Note: user specified rainfall values used. Rainfall depth area reduction factors: Using a total area of       3.98(Ac.) (Ref: fig. E‐4) 5‐minute factor = 1.000     Adjusted rainfall =  0.548(In) 30‐minute factor = 1.000    Adjusted rainfall =  1.121(In) 1‐hour factor = 1.000       Adjusted rainfall =  1.480(In) 3‐hour factor = 1.000       Adjusted rainfall =  1.480(In) 6‐hour factor = 1.000       Adjusted rainfall =  1.481(In) 24‐hour factor = 1.000      Adjusted rainfall =  1.482(In) ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ U n i t  H y d r o g r a p h  +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Interval          'S' Graph          Unit Hydrograph Number            Mean values             ((CFS)) ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ (K =        48.13 (CFS))   1                6.442                   3.101   2               41.188                  16.724   3               81.358                  19.335   4               95.384                   6.751   5               98.630                   1.562   6              100.000                   0.659 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Total soil rain loss =      0.10(In) Total effective rainfall =      1.38(In) Peak flow rate in flood hydrograph =     13.57(CFS) ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++                     3 ‐ H O U R    S T O R M                R u n o f f      H y d r o g r a p h ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐             Hydrograph in   5   Minute intervals ((CFS)) ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐   Time(h+m) Volume Ac.Ft   Q(CFS)  0        5.0      10.0      15.0      20.0   ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐     0+ 5       0.0000      0.00  Q         |         |         |         |      0+10       0.0000      0.00  Q         |         |         |         |      0+15       0.0000      0.00  Q         |         |         |         |      0+20       0.0000      0.00  Q         |         |         |         |      0+25       0.0000      0.00  Q         |         |         |         |      0+30       0.0000      0.00  Q         |         |         |         |      0+35       0.0000      0.00  Q         |         |         |         |      0+40       0.0000      0.00  Q         |         |         |         |      0+45       0.0000      0.00  Q         |         |         |         |      0+50       0.0000      0.00  Q         |         |         |         |      0+55       0.0000      0.00  Q         |         |         |         |      1+ 0       0.0000      0.00  Q         |         |         |         |      1+ 5       0.0000      0.00  Q         |         |         |         |      1+10       0.0000      0.00  Q         |         |         |         |      1+15       0.0000      0.00  Q         |         |         |         |      1+20       0.0000      0.00  Q         |         |         |         |      1+25       0.0009      0.13  Q         |         |         |         |      1+30       0.0067      0.84  VQ        |         |         |         |      1+35       0.0186      1.73  |V Q      |         |         |         |      1+40       0.0338      2.20  | V Q     |         |         |         |      1+45       0.0514      2.55  |   VQ    |         |         |         |      1+50       0.0719      2.98  |    QV   |         |         |         |      1+55       0.0965      3.57  |      QV |         |         |         |      2+ 0       0.1285      4.66  |        Q|V        |         |         |      2+ 5       0.1798      7.44  |         |   QV    |         |         |      2+10       0.2728     13.50  |         |         |  V   Q  |         |      2+15       0.3663     13.57  |         |         |      Q  | V       |      2+20       0.4146      7.02  |         |   Q     |         |     V   |      2+25       0.4395      3.62  |      Q  |         |         |       V |      2+30       0.4524      1.86  |  Q      |         |         |        V|      2+35       0.4557      0.49  Q         |         |         |        V|      2+40       0.4565      0.12  Q         |         |         |        V|      2+45       0.4567      0.03  Q         |         |         |        V|      2+50       0.4567      0.00  Q         |         |         |        V|      2+55       0.4567      0.00  Q         |         |         |        V|      3+ 0       0.4567      0.00  Q         |         |         |        V|      3+ 5       0.4567      0.00  Q         |         |         |        V|      3+10       0.4567      0.00  Q         |         |         |        V|      3+15       0.4567      0.00  Q         |         |         |        V|      3+20       0.4567      0.00  Q         |         |         |        V|      3+25       0.4567      0.00  Q         |         |         |         V  ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ U n i t   H y d r o g r a p h    A n a l y s i s Copyright (c) CIVILCADD/CIVILDESIGN, 1989 ‐ 2004, Version 7.0 Study date  06/28/24 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ San Bernardino County Synthetic Unit Hydrology Method Manual date ‐ August 1986 Program License Serial Number 5016 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ JN 4113 UNIT HYDROGRAPH 100 YEAR 24 HOUR STORM  POST‐DEVELOPED ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Storm Event Year = 100 Antecedent Moisture Condition = 3  English (in‐lb) Input Units Used  English Rainfall Data (Inches) Input Values Used  English Units used in output format Area averaged rainfall intensity isohyetal data: Sub‐Area        Duration        Isohyetal (Ac.)            (hours)         (In) Rainfall data for year 100      3.98            1           1.48 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Rainfall data for year 100      3.98            6           0.62 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Rainfall data for year 100      3.98           24           0.29 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ ******** Area‐averaged max loss rate, Fm ******** SCS curve  SCS curve     Area     Area     Fp(Fig C6)    Ap      Fm No.(AMCII) NO.(AMC 3)    (Ac.)    Fraction     (In/Hr)  (dec.)   (In/Hr)  32.0      52.0          3.98      1.000     0.785    0.130    0.102 Area‐averaged adjusted loss rate Fm (In/Hr) =  0.102 ********* Area‐Averaged low loss rate fraction, Yb ********** Area       Area          SCS CN    SCS CN      S     Pervious  (Ac.)      Fract         (AMC2)    (AMC3)           Yield Fr      0.52   0.130         32.0      52.0       7.41     0.000      3.46   0.870         98.0      98.0       0.20     0.852 Area‐averaged catchment yield fraction, Y =  0.741 Area‐averaged low loss fraction, Yb =  0.259 User entry of time of concentration  =   0.175 (hours) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Watershed area =       3.98(Ac.) Catchment Lag time =   0.140 hours Unit interval =   5.000 minutes Unit interval percentage of lag time = 59.6329 Hydrograph baseflow =     0.00(CFS) Average maximum watershed loss rate(Fm) =  0.102(In/Hr) Average low loss rate fraction (Yb) = 0.259 (decimal) VALLEY DEVELOPED S‐Graph Selected Computed peak 5‐minute rainfall =  0.548(In) Computed peak 30‐minute rainfall =  1.122(In) Specified peak 1‐hour rainfall =  1.480(In) Computed peak 3‐hour rainfall =  1.480(In) Specified peak 6‐hour rainfall =  1.481(In) Specified peak 24‐hour rainfall =  1.482(In) Note: user specified rainfall values used. Rainfall depth area reduction factors: Using a total area of       3.98(Ac.) (Ref: fig. E‐4) 5‐minute factor = 1.000     Adjusted rainfall =  0.548(In) 30‐minute factor = 1.000    Adjusted rainfall =  1.121(In) 1‐hour factor = 1.000       Adjusted rainfall =  1.480(In) 3‐hour factor = 1.000       Adjusted rainfall =  1.480(In) 6‐hour factor = 1.000       Adjusted rainfall =  1.481(In) 24‐hour factor = 1.000      Adjusted rainfall =  1.482(In) ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ U n i t  H y d r o g r a p h  +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Interval          'S' Graph          Unit Hydrograph Number            Mean values             ((CFS)) ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ (K =        48.13 (CFS))   1                6.442                   3.101   2               41.188                  16.724   3               81.358                  19.335   4               95.384                   6.751   5               98.630                   1.562   6              100.000                   0.659 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Total soil rain loss =      0.10(In) Total effective rainfall =      1.38(In) Peak flow rate in flood hydrograph =     13.57(CFS) ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++                     24 ‐ H O U R    S T O R M                R u n o f f      H y d r o g r a p h ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐             Hydrograph in   5   Minute intervals ((CFS)) ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐   Time(h+m) Volume Ac.Ft   Q(CFS)  0        5.0      10.0      15.0      20.0   ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐     0+ 5       0.0000      0.00  Q         |         |         |         |      0+10       0.0000      0.00  Q         |         |         |         |      0+15       0.0000      0.00  Q         |         |         |         |      0+20       0.0000      0.00  Q         |         |         |         |      0+25       0.0000      0.00  Q         |         |         |         |      0+30       0.0000      0.00  Q         |         |         |         |      0+35       0.0000      0.00  Q         |         |         |         |      0+40       0.0000      0.00  Q         |         |         |         |      0+45       0.0000      0.00  Q         |         |         |         |      0+50       0.0000      0.00  Q         |         |         |         |      0+55       0.0000      0.00  Q         |         |         |         |      1+ 0       0.0000      0.00  Q         |         |         |         |      1+ 5       0.0000      0.00  Q         |         |         |         |      1+10       0.0000      0.00  Q         |         |         |         |      1+15       0.0000      0.00  Q         |         |         |         |      1+20       0.0000      0.00  Q         |         |         |         |      1+25       0.0000      0.00  Q         |         |         |         |      1+30       0.0000      0.00  Q         |         |         |         |      1+35       0.0000      0.00  Q         |         |         |         |      1+40       0.0000      0.00  Q         |         |         |         |      1+45       0.0000      0.00  Q         |         |         |         |      1+50       0.0000      0.00  Q         |         |         |         |      1+55       0.0000      0.00  Q         |         |         |         |      2+ 0       0.0000      0.00  Q         |         |         |         |      2+ 5       0.0000      0.00  Q         |         |         |         |      2+10       0.0000      0.00  Q         |         |         |         |      2+15       0.0000      0.00  Q         |         |         |         |      2+20       0.0000      0.00  Q         |         |         |         |      2+25       0.0000      0.00  Q         |         |         |         |      2+30       0.0000      0.00  Q         |         |         |         |      2+35       0.0000      0.00  Q         |         |         |         |      2+40       0.0000      0.00  Q         |         |         |         |      2+45       0.0000      0.00  Q         |         |         |         |      2+50       0.0000      0.00  Q         |         |         |         |      2+55       0.0000      0.00  Q         |         |         |         |      3+ 0       0.0000      0.00  Q         |         |         |         |      3+ 5       0.0000      0.00  Q         |         |         |         |      3+10       0.0000      0.00  Q         |         |         |         |      3+15       0.0000      0.00  Q         |         |         |         |      3+20       0.0000      0.00  Q         |         |         |         |      3+25       0.0000      0.00  Q         |         |         |         |      3+30       0.0000      0.00  Q         |         |         |         |      3+35       0.0000      0.00  Q         |         |         |         |      3+40       0.0000      0.00  Q         |         |         |         |      3+45       0.0000      0.00  Q         |         |         |         |      3+50       0.0000      0.00  Q         |         |         |         |      3+55       0.0000      0.00  Q         |         |         |         |      4+ 0       0.0000      0.00  Q         |         |         |         |      4+ 5       0.0000      0.00  Q         |         |         |         |      4+10       0.0000      0.00  Q         |         |         |         |      4+15       0.0000      0.00  Q         |         |         |         |      4+20       0.0000      0.00  Q         |         |         |         |      4+25       0.0000      0.00  Q         |         |         |         |      4+30       0.0000      0.00  Q         |         |         |         |      4+35       0.0000      0.00  Q         |         |         |         |      4+40       0.0000      0.00  Q         |         |         |         |      4+45       0.0000      0.00  Q         |         |         |         |      4+50       0.0000      0.00  Q         |         |         |         |      4+55       0.0000      0.00  Q         |         |         |         |      5+ 0       0.0000      0.00  Q         |         |         |         |      5+ 5       0.0000      0.00  Q         |         |         |         |      5+10       0.0000      0.00  Q         |         |         |         |      5+15       0.0000      0.00  Q         |         |         |         |      5+20       0.0000      0.00  Q         |         |         |         |      5+25       0.0000      0.00  Q         |         |         |         |      5+30       0.0000      0.00  Q         |         |         |         |      5+35       0.0000      0.00  Q         |         |         |         |      5+40       0.0001      0.00  Q         |         |         |         |      5+45       0.0001      0.00  Q         |         |         |         |      5+50       0.0001      0.00  Q         |         |         |         |      5+55       0.0001      0.00  Q         |         |         |         |      6+ 0       0.0001      0.00  Q         |         |         |         |      6+ 5       0.0001      0.00  Q         |         |         |         |      6+10       0.0001      0.00  Q         |         |         |         |      6+15       0.0001      0.00  Q         |         |         |         |      6+20       0.0001      0.00  Q         |         |         |         |      6+25       0.0001      0.00  Q         |         |         |         |      6+30       0.0001      0.00  Q         |         |         |         |      6+35       0.0001      0.00  Q         |         |         |         |      6+40       0.0001      0.00  Q         |         |         |         |      6+45       0.0001      0.00  Q         |         |         |         |      6+50       0.0001      0.00  Q         |         |         |         |      6+55       0.0001      0.00  Q         |         |         |         |      7+ 0       0.0001      0.00  Q         |         |         |         |      7+ 5       0.0001      0.00  Q         |         |         |         |      7+10       0.0001      0.00  Q         |         |         |         |      7+15       0.0001      0.00  Q         |         |         |         |      7+20       0.0001      0.00  Q         |         |         |         |      7+25       0.0001      0.00  Q         |         |         |         |      7+30       0.0001      0.00  Q         |         |         |         |      7+35       0.0001      0.00  Q         |         |         |         |      7+40       0.0001      0.00  Q         |         |         |         |      7+45       0.0001      0.00  Q         |         |         |         |      7+50       0.0001      0.00  Q         |         |         |         |      7+55       0.0001      0.00  Q         |         |         |         |      8+ 0       0.0001      0.00  Q         |         |         |         |      8+ 5       0.0001      0.00  Q         |         |         |         |      8+10       0.0001      0.00  Q         |         |         |         |      8+15       0.0001      0.00  Q         |         |         |         |      8+20       0.0001      0.00  Q         |         |         |         |      8+25       0.0001      0.00  Q         |         |         |         |      8+30       0.0001      0.00  Q         |         |         |         |      8+35       0.0001      0.00  Q         |         |         |         |      8+40       0.0001      0.00  Q         |         |         |         |      8+45       0.0001      0.00  Q         |         |         |         |      8+50       0.0001      0.00  Q         |         |         |         |      8+55       0.0001      0.00  Q         |         |         |         |      9+ 0       0.0001      0.00  Q         |         |         |         |      9+ 5       0.0001      0.00  Q         |         |         |         |      9+10       0.0001      0.00  Q         |         |         |         |      9+15       0.0001      0.00  Q         |         |         |         |      9+20       0.0001      0.00  Q         |         |         |         |      9+25       0.0001      0.00  Q         |         |         |         |      9+30       0.0001      0.00  Q         |         |         |         |      9+35       0.0001      0.00  Q         |         |         |         |      9+40       0.0001      0.00  Q         |         |         |         |      9+45       0.0001      0.00  Q         |         |         |         |      9+50       0.0001      0.00  Q         |         |         |         |      9+55       0.0001      0.00  Q         |         |         |         |     10+ 0       0.0001      0.00  Q         |         |         |         |     10+ 5       0.0001      0.00  Q         |         |         |         |     10+10       0.0001      0.00  Q         |         |         |         |     10+15       0.0001      0.00  Q         |         |         |         |     10+20       0.0001      0.00  Q         |         |         |         |     10+25       0.0001      0.00  Q         |         |         |         |     10+30       0.0001      0.00  Q         |         |         |         |     10+35       0.0001      0.00  Q         |         |         |         |     10+40       0.0001      0.00  Q         |         |         |         |     10+45       0.0001      0.00  Q         |         |         |         |     10+50       0.0001      0.00  Q         |         |         |         |     10+55       0.0001      0.00  Q         |         |         |         |     11+ 0       0.0001      0.00  Q         |         |         |         |     11+ 5       0.0001      0.00  Q         |         |         |         |     11+10       0.0001      0.00  Q         |         |         |         |     11+15       0.0001      0.00  Q         |         |         |         |     11+20       0.0001      0.00  Q         |         |         |         |     11+25       0.0001      0.00  Q         |         |         |         |     11+30       0.0001      0.00  Q         |         |         |         |     11+35       0.0001      0.00  Q         |         |         |         |     11+40       0.0002      0.00  Q         |         |         |         |     11+45       0.0002      0.00  Q         |         |         |         |     11+50       0.0002      0.00  Q         |         |         |         |     11+55       0.0002      0.00  Q         |         |         |         |     12+ 0       0.0002      0.00  Q         |         |         |         |     12+ 5       0.0002      0.00  Q         |         |         |         |     12+10       0.0002      0.00  Q         |         |         |         |     12+15       0.0002      0.00  Q         |         |         |         |     12+20       0.0002      0.00  Q         |         |         |         |     12+25       0.0002      0.00  Q         |         |         |         |     12+30       0.0002      0.00  Q         |         |         |         |     12+35       0.0002      0.00  Q         |         |         |         |     12+40       0.0002      0.00  Q         |         |         |         |     12+45       0.0002      0.00  Q         |         |         |         |     12+50       0.0002      0.00  Q         |         |         |         |     12+55       0.0002      0.00  Q         |         |         |         |     13+ 0       0.0002      0.00  Q         |         |         |         |     13+ 5       0.0002      0.00  Q         |         |         |         |     13+10       0.0002      0.00  Q         |         |         |         |     13+15       0.0002      0.00  Q         |         |         |         |     13+20       0.0002      0.00  Q         |         |         |         |     13+25       0.0003      0.00  Q         |         |         |         |     13+30       0.0003      0.00  Q         |         |         |         |     13+35       0.0003      0.00  Q         |         |         |         |     13+40       0.0003      0.00  Q         |         |         |         |     13+45       0.0003      0.00  Q         |         |         |         |     13+50       0.0003      0.00  Q         |         |         |         |     13+55       0.0003      0.00  Q         |         |         |         |     14+ 0       0.0003      0.00  Q         |         |         |         |     14+ 5       0.0003      0.00  Q         |         |         |         |     14+10       0.0003      0.00  Q         |         |         |         |     14+15       0.0003      0.00  Q         |         |         |         |     14+20       0.0003      0.00  Q         |         |         |         |     14+25       0.0003      0.00  Q         |         |         |         |     14+30       0.0003      0.00  Q         |         |         |         |     14+35       0.0003      0.00  Q         |         |         |         |     14+40       0.0003      0.00  Q         |         |         |         |     14+45       0.0003      0.00  Q         |         |         |         |     14+50       0.0003      0.00  Q         |         |         |         |     14+55       0.0003      0.00  Q         |         |         |         |     15+ 0       0.0003      0.00  Q         |         |         |         |     15+ 5       0.0004      0.00  Q         |         |         |         |     15+10       0.0004      0.00  Q         |         |         |         |     15+15       0.0004      0.00  Q         |         |         |         |     15+20       0.0004      0.00  Q         |         |         |         |     15+25       0.0013      0.13  Q         |         |         |         |     15+30       0.0071      0.84  VQ        |         |         |         |     15+35       0.0190      1.73  |V Q      |         |         |         |     15+40       0.0341      2.20  | V Q     |         |         |         |     15+45       0.0517      2.55  |   VQ    |         |         |         |     15+50       0.0722      2.98  |    QV   |         |         |         |     15+55       0.0968      3.57  |      QV |         |         |         |     16+ 0       0.1289      4.66  |        Q|V        |         |         |     16+ 5       0.1801      7.44  |         |   QV    |         |         |     16+10       0.2731     13.50  |         |         |  V   Q  |         |     16+15       0.3666     13.57  |         |         |      Q  | V       |     16+20       0.4150      7.02  |         |   Q     |         |     V   |     16+25       0.4399      3.62  |      Q  |         |         |       V |     16+30       0.4527      1.86  |  Q      |         |         |        V|     16+35       0.4560      0.49  Q         |         |         |        V|     16+40       0.4568      0.12  Q         |         |         |        V|     16+45       0.4571      0.03  Q         |         |         |        V|     16+50       0.4571      0.00  Q         |         |         |        V|     16+55       0.4571      0.00  Q         |         |         |        V|     17+ 0       0.4571      0.00  Q         |         |         |        V|     17+ 5       0.4571      0.00  Q         |         |         |        V|     17+10       0.4571      0.00  Q         |         |         |        V|     17+15       0.4571      0.00  Q         |         |         |        V|     17+20       0.4571      0.00  Q         |         |         |        V|     17+25       0.4571      0.00  Q         |         |         |        V|     17+30       0.4571      0.00  Q         |         |         |        V|     17+35       0.4571      0.00  Q         |         |         |        V|     17+40       0.4571      0.00  Q         |         |         |        V|     17+45       0.4571      0.00  Q         |         |         |        V|     17+50       0.4571      0.00  Q         |         |         |        V|     17+55       0.4571      0.00  Q         |         |         |        V|     18+ 0       0.4572      0.00  Q         |         |         |        V|     18+ 5       0.4572      0.00  Q         |         |         |        V|     18+10       0.4572      0.00  Q         |         |         |        V|     18+15       0.4572      0.00  Q         |         |         |        V|     18+20       0.4572      0.00  Q         |         |         |        V|     18+25       0.4572      0.00  Q         |         |         |        V|     18+30       0.4572      0.00  Q         |         |         |        V|     18+35       0.4572      0.00  Q         |         |         |        V|     18+40       0.4572      0.00  Q         |         |         |        V|     18+45       0.4572      0.00  Q         |         |         |        V|     18+50       0.4572      0.00  Q         |         |         |        V|     18+55       0.4572      0.00  Q         |         |         |        V|     19+ 0       0.4572      0.00  Q         |         |         |        V|     19+ 5       0.4572      0.00  Q         |         |         |        V|     19+10       0.4572      0.00  Q         |         |         |        V|     19+15       0.4572      0.00  Q         |         |         |        V|     19+20       0.4572      0.00  Q         |         |         |        V|     19+25       0.4572      0.00  Q         |         |         |        V|     19+30       0.4572      0.00  Q         |         |         |        V|     19+35       0.4572      0.00  Q         |         |         |        V|     19+40       0.4572      0.00  Q         |         |         |        V|     19+45       0.4572      0.00  Q         |         |         |        V|     19+50       0.4572      0.00  Q         |         |         |        V|     19+55       0.4572      0.00  Q         |         |         |        V|     20+ 0       0.4572      0.00  Q         |         |         |        V|     20+ 5       0.4572      0.00  Q         |         |         |        V|     20+10       0.4572      0.00  Q         |         |         |        V|     20+15       0.4572      0.00  Q         |         |         |        V|     20+20       0.4572      0.00  Q         |         |         |        V|     20+25       0.4572      0.00  Q         |         |         |        V|     20+30       0.4572      0.00  Q         |         |         |        V|     20+35       0.4572      0.00  Q         |         |         |        V|     20+40       0.4572      0.00  Q         |         |         |        V|     20+45       0.4572      0.00  Q         |         |         |        V|     20+50       0.4572      0.00  Q         |         |         |        V|     20+55       0.4572      0.00  Q         |         |         |        V|     21+ 0       0.4572      0.00  Q         |         |         |        V|     21+ 5       0.4572      0.00  Q         |         |         |        V|     21+10       0.4572      0.00  Q         |         |         |        V|     21+15       0.4572      0.00  Q         |         |         |        V|     21+20       0.4572      0.00  Q         |         |         |        V|     21+25       0.4572      0.00  Q         |         |         |        V|     21+30       0.4572      0.00  Q         |         |         |        V|     21+35       0.4572      0.00  Q         |         |         |        V|     21+40       0.4572      0.00  Q         |         |         |        V|     21+45       0.4572      0.00  Q         |         |         |        V|     21+50       0.4572      0.00  Q         |         |         |        V|     21+55       0.4572      0.00  Q         |         |         |        V|     22+ 0       0.4572      0.00  Q         |         |         |        V|     22+ 5       0.4572      0.00  Q         |         |         |        V|     22+10       0.4572      0.00  Q         |         |         |        V|     22+15       0.4572      0.00  Q         |         |         |        V|     22+20       0.4572      0.00  Q         |         |         |        V|     22+25       0.4572      0.00  Q         |         |         |        V|     22+30       0.4572      0.00  Q         |         |         |        V|     22+35       0.4572      0.00  Q         |         |         |        V|     22+40       0.4572      0.00  Q         |         |         |        V|     22+45       0.4572      0.00  Q         |         |         |        V|     22+50       0.4572      0.00  Q         |         |         |        V|     22+55       0.4572      0.00  Q         |         |         |        V|     23+ 0       0.4572      0.00  Q         |         |         |        V|     23+ 5       0.4572      0.00  Q         |         |         |        V|     23+10       0.4572      0.00  Q         |         |         |        V|     23+15       0.4572      0.00  Q         |         |         |        V|     23+20       0.4572      0.00  Q         |         |         |        V|     23+25       0.4572      0.00  Q         |         |         |        V|     23+30       0.4572      0.00  Q         |         |         |        V|     23+35       0.4572      0.00  Q         |         |         |        V|     23+40       0.4572      0.00  Q         |         |         |        V|     23+45       0.4572      0.00  Q         |         |         |        V|     23+50       0.4572      0.00  Q         |         |         |        V|     23+55       0.4572      0.00  Q         |         |         |        V|     24+ 0       0.4572      0.00  Q         |         |         |        V|     24+ 5       0.4572      0.00  Q         |         |         |        V|     24+10       0.4572      0.00  Q         |         |         |        V|     24+15       0.4572      0.00  Q         |         |         |        V|     24+20       0.4572      0.00  Q         |         |         |        V|     24+25       0.4572      0.00  Q         |         |         |        V|  ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Appendix E Volume/Outflow Calcs d = 0.01’ (Und. Sys. Begins to Fill) - Gravel Only V Trench = (72) (29) (0.01) = 20.88 (40% Void) = 8.35 cf = 0.0002 af Infiltration Rate Per Report 25.6i in/hr Safety Factor = 3 Design Rate = 25.6/3 = 8.53 in/hr QOut = (72) (29) (8.53/12)/((60 m/hr)(60 s/m)) = 0.41 cfs d = 0.1’ V Trench = (72) (29) (0.1)(40%) = 208.8 (0.40) = 83.5 cf = 0.0019 af QOut = 0.41 cfs d = 1.1’ (Und. Sys. – Pipe Begins to Fill) Pipe = 208 LF 7 ft Ø V Trench = (72) (29) (1.1) = 2,296.8cf V Pipes - King’s Table 7 - 4 d = 0.1 = 0.0167 Ca= 0.0023 A = CaD2 = 0.0023 (7)2 = 0.113 V = 208 (0.113) = 23.44 cf D 7 V Gravel = (V Trench – V Pipes)(40%) = (2,296.8 – 23.44)(0.40) = 358.11 cf V Total = V pipe + V Gravel = 23.44 + 358.11 = 381.55 cf = 0.0088 af QOut = 0.41 cfs d= 2.75’ (Und. Sys. – Pipe 25% Full) V Trench = (72) (29) (2.75) = 5,742 cf V Pipes - King’s Table 7 - 4 d = 1.75 = 0.25 Ca= 0.1535 A = CaD2 = 0.1535 (7)2 = 3.62 V = 208 (3.62) = 752.96 cf D 7 V Gravel = (V Trench – V Pipes)(40%) = (5,742 – 752.96)(0.40) = 1,995.62 cf V Total = V pipe + V Gravel = 752.99 + 1,995.62 = 2,748.58 cf = 0.0631 af QOut = 0.41 cfs d = 4.50‘ (Und. Sys. – Pipe 50% Full) V Trench = (72) (29) (4.50) = 9,396 cf V Pipes - King’s Table 7 - 4 d = 3.50 = 0.50 Ca= 0.393 A = CaD2 = 0.393 (7)2 = 19.25 V = 208 (19.25) = 4,004 cf D 7 V Gravel = (V Trench – V Pipes)(40%) = (9,396 – 4,004)(0.40) = 2,156.8 cf V Total = V pipe + V Gravel = 4,004 + 2,156.8 = 6,156.8 cf = 0.1413 af QOut = 0.41 cf d = 6.25‘ (Und. Sys. – Pipe 75% Full) V Trench = (72) (29) (6.25) = 13,050 cf V Pipes - King’s Table 7 - 4 d = 5.25 = 0.75 Ca= 0.632 A = CaD2 = 0.632 (7)2 = 30.97 V = 208 (30.97) = 6,441.75 cf D 7 V Gravel = (V Trench – V Pipes)(40%) = (13,050 – 6,441.76)(0.40) = 2,643.30 cf V Total = V pipe + V Gravel = 6,441.76 + 2,643.3 = 9,085.06 cf = 0.2086 af QOut = 0.41 cf d = 8.0‘ (Und. Sys. – Pipe 100% Full) V Trench = (72) (29) (8) = 16,704 cf V Pipes = (Length Pipes)π(r)2 = (208)(3.5)2 π = 8,004.78 V Gravel = (V Trench – V Pipes)(40%) = (16,704 – 8,004.78)(0.40) = 3,479.69 cf V Total = V pipe + V Gravel = 8,004.78 + 3,479.69 = 11,484.47 cf = 0.2636 af QOut = 0.41 cf d = 8.1‘ (Und. Sys. – Filling Gravel Just Above Pipe) V Trench = (72) (29) (8.1) = 16,912.8 cf V Pipes = (Length Pipes)π(r)2 = (208)(3.5)2 π = 8,004.78 V Gravel = (V Trench – V Pipes)(40%) = (16,912.8 – 8,004.78)(0.40) = 3,563.21 cf V Total = V pipe + V Gravel = 8,004.78 + 3,563.21 = 11,567.9 cf = 0.2656 af QOut = 0.41 cfs d = 9.0‘ (Und. Sys. Is Full) V Trench = (72) (29) (9.0) = 18,792 cf V Pipes = (Length Pipes)π(r)2 = (208)(3.5)2 π = 8,004.78 V Gravel = (V Trench – V Pipes)(40%) = (18,792 – 8,004.78)(0.40) = 4,314.89 cf V Total = V pipe + V Gravel = 8,004.78 + 4,314.89 = 12,319.67 cf = 0.2828 af QOut = 0.41 cfs d = 9.1‘ Overflow/Bubble out of Und. Sys. 0.1’ Depth in 12Ø” Outflow pipe) Insignificant volume Addition VTotal = 0.2828 af Kings Tabel 7-14 Q Pipe = K d8/3 s1/2 n d = 0.1’ D = 1’ n = 0.013 s = 0.005 d = 0.1 = 0.1 K= 0.0097 Q = (0.0097)(1)8/3(0.005)1/2 = 0.052 D 1 0.013 Q Pipe = 0.05 cfs Q system = 0.41cfs Q total = 0.05 + 0.41 = 0.46 cfs d = 9.5‘ Overflow/Bubble out of Und. Sys. 0.5’ Depth in 12Ø” Outflow pipe) Insignificant volume Addition VTotal = 0.2828 af s=0.005 Kings Tabel 7-14 Q Pipe = K d8/3 s1/2 n d = 0.5’ D = 1’ n = 0.013 s = 0.005 d = 0.5 = 0.5 K= 0.232 Q = (0.232)(1)8/3(0.005)1/2 = 1.26cfs D 1 0.013 Q Pipe = 1.26 cfs Q System = 0.41cfs Q total = 1.26 + 0.41 = 1.67 cfs d = 10.0‘ Overflow/Bubble out of Und. Sys. 1.0’ Depth in 12Ø” Outflow pipe) Insignificant volume Addition VTotal = 0.2828 af s=0.005 Kings Tabel 7-14 Q Pipe = K d8/3 s1/2 n d = 1’ D = 1’ n = 0.013 s= 0.005 d = 1 = 1 K= 0.463 Q = (0.463)(1)8/3(0.005)1/2 = 2.51cfs D 1 0.013 Q Pipe = 2.92 cfs Q System = 0.41cfs Q total = 2.51 + 0.41 = 2.92 cfs                      FLOOD HYDROGRAPH ROUTING PROGRAM             Copyright (c) CIVILCADD/CIVILDESIGN, 1989 ‐ 2005                         Study date: 07/24/24 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ JN 4113 FLOOD ROUTING 2 YEAR 3 HUR STORM ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Program License Serial Number 5016 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ ********************* HYDROGRAPH INFORMATION ********************** From study/file name: 4113UH2Y3H.rte ****************************HYDROGRAPH DATA**************************** Number of intervals =    41 Time interval =    5.0 (Min.) Maximum/Peak flow rate =        4.432 (CFS) Total volume =       0.133 (Ac.Ft) Status of hydrographs being held in storage            Stream 1  Stream 2  Stream 3  Stream 4  Stream 5 Peak (CFS)      0.000     0.000     0.000     0.000     0.000 Vol (Ac.Ft)      0.000     0.000     0.000     0.000     0.000 *********************************************************************** ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station        1.000 to Point/Station        2.000 **** RETARDING BASIN ROUTING **** ______________________________________________________________________ User entry of depth‐outflow‐storage data ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Total number of inflow hydrograph intervals = 41 Hydrograph time unit =  5.000 (Min.) Initial depth in storage basin =   0.00(Ft.) ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Initial basin depth =   0.00 (Ft.) Initial basin storage =      0.00 (Ac.Ft) Initial basin outflow =   0.00 (CFS) ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Depth vs. Storage and Depth vs. Discharge data:  Basin Depth  Storage    Outflow   (S‐O*dt/2)   (S+O*dt/2)      (Ft.)    (Ac.Ft)    (CFS)     (Ac.Ft)    (Ac.Ft) ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐           0.000      0.000      0.000      0.000        0.000           0.010      0.001      0.410     ‐0.000        0.002           0.100      0.002      0.410      0.001        0.003           1.100      0.009      0.410      0.008        0.010           2.750      0.063      0.410      0.062        0.064           4.500      0.141      0.410      0.140        0.142           6.250      0.209      0.410      0.208        0.210           8.000      0.264      0.410      0.263        0.265           8.100      0.266      0.410      0.265        0.267           9.000      0.283      0.410      0.282        0.284           9.100      0.284      0.460      0.282        0.286           9.500      0.285      1.670      0.279        0.291          10.000      0.286      2.920      0.276        0.296 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Hydrograph Detention Basin Routing ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Graph values: 'I'= unit inflow; 'O'=outflow at time shown ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐   Time   Inflow  Outflow    Storage                                     Depth   (Hours)  (CFS)   (CFS)     (Ac.Ft) .0       1.1    2.22    3.32    4.43 (Ft.)   0.083    0.00    0.00      0.000  O       |       |       |       |     0.00   0.167    0.00    0.00      0.000  O       |       |       |       |     0.00   0.250    0.00    0.00      0.000  O       |       |       |       |     0.00   0.333    0.00    0.00      0.000  O       |       |       |       |     0.00   0.417    0.00    0.00      0.000  O       |       |       |       |     0.00   0.500    0.00    0.00      0.000  O       |       |       |       |     0.00   0.583    0.00    0.00      0.000  O       |       |       |       |     0.00   0.667    0.00    0.00      0.000  O       |       |       |       |     0.00   0.750    0.00    0.00      0.000  O       |       |       |       |     0.00   0.833    0.00    0.00      0.000  O       |       |       |       |     0.00   0.917    0.00    0.00      0.000  O       |       |       |       |     0.00   1.000    0.00    0.00      0.000  O       |       |       |       |     0.00   1.083    0.00    0.00      0.000  O       |       |       |       |     0.00   1.167    0.00    0.00      0.000  O       |       |       |       |     0.00   1.250    0.00    0.00      0.000  O       |       |       |       |     0.00   1.333    0.00    0.00      0.000  O       |       |       |       |     0.00   1.417    0.03    0.02      0.000  O       |       |       |       |     0.00   1.500    0.19    0.13      0.000  OI      |       |       |       |     0.00   1.583    0.40    0.33      0.001  | O     |       |       |       |     0.01   1.667    0.51    0.41      0.001  | OI    |       |       |       |     0.05   1.750    0.59    0.41      0.002  | O I   |       |       |       |     0.15   1.833    0.70    0.41      0.004  | O  I  |       |       |       |     0.38   1.917    0.89    0.41      0.007  | O   I |       |       |       |     0.76   2.000    1.26    0.41      0.011  | O     |I      |       |       |     1.17   2.083    2.22    0.41      0.020  | O     |       I       |       |     1.45   2.167    4.30    0.41      0.040  | O     |       |       |      I|     2.05   2.250    4.43    0.41      0.067  | O     |       |       |       I     2.84   2.333    2.16    0.41      0.087  | O     |      I|       |       |     3.29   2.417    1.00    0.41      0.095  | O    I|       |       |       |     3.47   2.500    0.49    0.41      0.097  | OI    |       |       |       |     3.52   2.583    0.12    0.41      0.097  I O     |       |       |       |     3.51   2.667    0.03    0.41      0.094  I O     |       |       |       |     3.46   2.750    0.01    0.41      0.092  I O     |       |       |       |     3.40   2.833    0.00    0.41      0.089  I O     |       |       |       |     3.33   2.917    0.00    0.41      0.086  I O     |       |       |       |     3.27   3.000    0.00    0.41      0.083  I O     |       |       |       |     3.21   3.083    0.00    0.41      0.081  I O     |       |       |       |     3.14   3.167    0.00    0.41      0.078  I O     |       |       |       |     3.08   3.250    0.00    0.41      0.075  I O     |       |       |       |     3.02   3.333    0.00    0.41      0.072  I O     |       |       |       |     2.95   3.417    0.00    0.41      0.069  I O     |       |       |       |     2.89   3.500    0.00    0.41      0.066  I O     |       |       |       |     2.83   3.583    0.00    0.41      0.064  I O     |       |       |       |     2.76   3.667    0.00    0.41      0.061  I O     |       |       |       |     2.68   3.750    0.00    0.41      0.058  I O     |       |       |       |     2.60   3.833    0.00    0.41      0.055  I O     |       |       |       |     2.51   3.917    0.00    0.41      0.052  I O     |       |       |       |     2.42   4.000    0.00    0.41      0.049  I O     |       |       |       |     2.34   4.083    0.00    0.41      0.047  I O     |       |       |       |     2.25   4.167    0.00    0.41      0.044  I O     |       |       |       |     2.16   4.250    0.00    0.41      0.041  I O     |       |       |       |     2.08   4.333    0.00    0.41      0.038  I O     |       |       |       |     1.99   4.417    0.00    0.41      0.035  I O     |       |       |       |     1.90   4.500    0.00    0.41      0.033  I O     |       |       |       |     1.82   4.583    0.00    0.41      0.030  I O     |       |       |       |     1.73   4.667    0.00    0.41      0.027  I O     |       |       |       |     1.65   4.750    0.00    0.41      0.024  I O     |       |       |       |     1.56   4.833    0.00    0.41      0.021  I O     |       |       |       |     1.47   4.917    0.00    0.41      0.018  I O     |       |       |       |     1.39   5.000    0.00    0.41      0.016  I O     |       |       |       |     1.30   5.083    0.00    0.41      0.013  I O     |       |       |       |     1.21   5.167    0.00    0.41      0.010  I O     |       |       |       |     1.13   5.250    0.00    0.41      0.007  I O     |       |       |       |     0.83   5.333    0.00    0.41      0.004  I O     |       |       |       |     0.43   5.417    0.00    0.41      0.001  I O     |       |       |       |     0.05   5.500    0.00    0.01      0.000  O       |       |       |       |     0.00 ****************************HYDROGRAPH DATA**************************** Number of intervals =    66 Time interval =    5.0 (Min.) Maximum/Peak flow rate =        0.410 (CFS) Total volume =       0.133 (Ac.Ft) Status of hydrographs being held in storage            Stream 1  Stream 2  Stream 3  Stream 4  Stream 5 Peak (CFS)      0.000     0.000     0.000     0.000     0.000 Vol (Ac.Ft)      0.000     0.000     0.000     0.000     0.000 *********************************************************************** ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐                      FLOOD HYDROGRAPH ROUTING PROGRAM             Copyright (c) CIVILCADD/CIVILDESIGN, 1989 ‐ 2005                         Study date: 07/24/24 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ JN 4113 FLOOD ROUTING 2 YEAR 24 HOUR STORM   ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Program License Serial Number 5016 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ ********************* HYDROGRAPH INFORMATION ********************** From study/file name: 4113UH2Y24H.rte ****************************HYDROGRAPH DATA**************************** Number of intervals =   293 Time interval =    5.0 (Min.) Maximum/Peak flow rate =        4.432 (CFS) Total volume =       0.134 (Ac.Ft) Status of hydrographs being held in storage            Stream 1  Stream 2  Stream 3  Stream 4  Stream 5 Peak (CFS)      0.000     0.000     0.000     0.000     0.000 Vol (Ac.Ft)      0.000     0.000     0.000     0.000     0.000 *********************************************************************** ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station        1.000 to Point/Station        2.000 **** RETARDING BASIN ROUTING **** ______________________________________________________________________ User entry of depth‐outflow‐storage data ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Total number of inflow hydrograph intervals = 293 Hydrograph time unit =  5.000 (Min.) Initial depth in storage basin =   0.00(Ft.) ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Initial basin depth =   0.00 (Ft.) Initial basin storage =      0.00 (Ac.Ft) Initial basin outflow =   0.00 (CFS) ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Depth vs. Storage and Depth vs. Discharge data:  Basin Depth  Storage    Outflow   (S‐O*dt/2)   (S+O*dt/2)      (Ft.)    (Ac.Ft)    (CFS)     (Ac.Ft)    (Ac.Ft) ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐           0.000      0.000      0.000      0.000        0.000           0.010      0.001      0.410     ‐0.000        0.002           0.100      0.002      0.410      0.001        0.003           1.100      0.009      0.410      0.008        0.010           2.750      0.063      0.410      0.062        0.064           4.500      0.141      0.410      0.140        0.142           6.250      0.209      0.410      0.208        0.210           8.000      0.264      0.410      0.263        0.265           8.100      0.266      0.410      0.265        0.267           9.000      0.283      0.410      0.282        0.284           9.100      0.284      0.460      0.282        0.286           9.500      0.285      1.670      0.279        0.291          10.000      0.286      2.920      0.276        0.296 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Hydrograph Detention Basin Routing ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Graph values: 'I'= unit inflow; 'O'=outflow at time shown ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐   Time   Inflow  Outflow    Storage                                     Depth   (Hours)  (CFS)   (CFS)     (Ac.Ft) .0       1.1    2.22    3.32    4.43 (Ft.)   0.083    0.00    0.00      0.000  O       |       |       |       |     0.00   0.167    0.00    0.00      0.000  O       |       |       |       |     0.00   0.250    0.00    0.00      0.000  O       |       |       |       |     0.00   0.333    0.00    0.00      0.000  O       |       |       |       |     0.00   0.417    0.00    0.00      0.000  O       |       |       |       |     0.00   0.500    0.00    0.00      0.000  O       |       |       |       |     0.00   0.583    0.00    0.00      0.000  O       |       |       |       |     0.00   0.667    0.00    0.00      0.000  O       |       |       |       |     0.00   0.750    0.00    0.00      0.000  O       |       |       |       |     0.00   0.833    0.00    0.00      0.000  O       |       |       |       |     0.00   0.917    0.00    0.00      0.000  O       |       |       |       |     0.00   1.000    0.00    0.00      0.000  O       |       |       |       |     0.00   1.083    0.00    0.00      0.000  O       |       |       |       |     0.00   1.167    0.00    0.00      0.000  O       |       |       |       |     0.00   1.250    0.00    0.00      0.000  O       |       |       |       |     0.00   1.333    0.00    0.00      0.000  O       |       |       |       |     0.00   1.417    0.00    0.00      0.000  O       |       |       |       |     0.00   1.500    0.00    0.00      0.000  O       |       |       |       |     0.00   1.583    0.00    0.00      0.000  O       |       |       |       |     0.00   1.667    0.00    0.00      0.000  O       |       |       |       |     0.00   1.750    0.00    0.00      0.000  O       |       |       |       |     0.00   1.833    0.00    0.00      0.000  O       |       |       |       |     0.00   1.917    0.00    0.00      0.000  O       |       |       |       |     0.00   2.000    0.00    0.00      0.000  O       |       |       |       |     0.00   2.083    0.00    0.00      0.000  O       |       |       |       |     0.00   2.167    0.00    0.00      0.000  O       |       |       |       |     0.00   2.250    0.00    0.00      0.000  O       |       |       |       |     0.00   2.333    0.00    0.00      0.000  O       |       |       |       |     0.00   2.417    0.00    0.00      0.000  O       |       |       |       |     0.00   2.500    0.00    0.00      0.000  O       |       |       |       |     0.00   2.583    0.00    0.00      0.000  O       |       |       |       |     0.00   2.667    0.00    0.00      0.000  O       |       |       |       |     0.00   2.750    0.00    0.00      0.000  O       |       |       |       |     0.00   2.833    0.00    0.00      0.000  O       |       |       |       |     0.00   2.917    0.00    0.00      0.000  O       |       |       |       |     0.00   3.000    0.00    0.00      0.000  O       |       |       |       |     0.00   3.083    0.00    0.00      0.000  O       |       |       |       |     0.00   3.167    0.00    0.00      0.000  O       |       |       |       |     0.00   3.250    0.00    0.00      0.000  O       |       |       |       |     0.00   3.333    0.00    0.00      0.000  O       |       |       |       |     0.00   3.417    0.00    0.00      0.000  O       |       |       |       |     0.00   3.500    0.00    0.00      0.000  O       |       |       |       |     0.00   3.583    0.00    0.00      0.000  O       |       |       |       |     0.00   3.667    0.00    0.00      0.000  O       |       |       |       |     0.00   3.750    0.00    0.00      0.000  O       |       |       |       |     0.00   3.833    0.00    0.00      0.000  O       |       |       |       |     0.00   3.917    0.00    0.00      0.000  O       |       |       |       |     0.00   4.000    0.00    0.00      0.000  O       |       |       |       |     0.00   4.083    0.00    0.00      0.000  O       |       |       |       |     0.00   4.167    0.00    0.00      0.000  O       |       |       |       |     0.00   4.250    0.00    0.00      0.000  O       |       |       |       |     0.00   4.333    0.00    0.00      0.000  O       |       |       |       |     0.00   4.417    0.00    0.00      0.000  O       |       |       |       |     0.00   4.500    0.00    0.00      0.000  O       |       |       |       |     0.00   4.583    0.00    0.00      0.000  O       |       |       |       |     0.00   4.667    0.00    0.00      0.000  O       |       |       |       |     0.00   4.750    0.00    0.00      0.000  O       |       |       |       |     0.00   4.833    0.00    0.00      0.000  O       |       |       |       |     0.00   4.917    0.00    0.00      0.000  O       |       |       |       |     0.00   5.000    0.00    0.00      0.000  O       |       |       |       |     0.00   5.083    0.00    0.00      0.000  O       |       |       |       |     0.00   5.167    0.00    0.00      0.000  O       |       |       |       |     0.00   5.250    0.00    0.00      0.000  O       |       |       |       |     0.00   5.333    0.00    0.00      0.000  O       |       |       |       |     0.00   5.417    0.00    0.00      0.000  O       |       |       |       |     0.00   5.500    0.00    0.00      0.000  O       |       |       |       |     0.00   5.583    0.00    0.00      0.000  O       |       |       |       |     0.00   5.667    0.00    0.00      0.000  O       |       |       |       |     0.00   5.750    0.00    0.00      0.000  O       |       |       |       |     0.00   5.833    0.00    0.00      0.000  O       |       |       |       |     0.00   5.917    0.00    0.00      0.000  O       |       |       |       |     0.00   6.000    0.00    0.00      0.000  O       |       |       |       |     0.00   6.083    0.00    0.00      0.000  O       |       |       |       |     0.00   6.167    0.00    0.00      0.000  O       |       |       |       |     0.00   6.250    0.00    0.00      0.000  O       |       |       |       |     0.00   6.333    0.00    0.00      0.000  O       |       |       |       |     0.00   6.417    0.00    0.00      0.000  O       |       |       |       |     0.00   6.500    0.00    0.00      0.000  O       |       |       |       |     0.00   6.583    0.00    0.00      0.000  O       |       |       |       |     0.00   6.667    0.00    0.00      0.000  O       |       |       |       |     0.00   6.750    0.00    0.00      0.000  O       |       |       |       |     0.00   6.833    0.00    0.00      0.000  O       |       |       |       |     0.00   6.917    0.00    0.00      0.000  O       |       |       |       |     0.00   7.000    0.00    0.00      0.000  O       |       |       |       |     0.00   7.083    0.00    0.00      0.000  O       |       |       |       |     0.00   7.167    0.00    0.00      0.000  O       |       |       |       |     0.00   7.250    0.00    0.00      0.000  O       |       |       |       |     0.00   7.333    0.00    0.00      0.000  O       |       |       |       |     0.00   7.417    0.00    0.00      0.000  O       |       |       |       |     0.00   7.500    0.00    0.00      0.000  O       |       |       |       |     0.00   7.583    0.00    0.00      0.000  O       |       |       |       |     0.00   7.667    0.00    0.00      0.000  O       |       |       |       |     0.00   7.750    0.00    0.00      0.000  O       |       |       |       |     0.00   7.833    0.00    0.00      0.000  O       |       |       |       |     0.00   7.917    0.00    0.00      0.000  O       |       |       |       |     0.00   8.000    0.00    0.00      0.000  O       |       |       |       |     0.00   8.083    0.00    0.00      0.000  O       |       |       |       |     0.00   8.167    0.00    0.00      0.000  O       |       |       |       |     0.00   8.250    0.00    0.00      0.000  O       |       |       |       |     0.00   8.333    0.00    0.00      0.000  O       |       |       |       |     0.00   8.417    0.00    0.00      0.000  O       |       |       |       |     0.00   8.500    0.00    0.00      0.000  O       |       |       |       |     0.00   8.583    0.00    0.00      0.000  O       |       |       |       |     0.00   8.667    0.00    0.00      0.000  O       |       |       |       |     0.00   8.750    0.00    0.00      0.000  O       |       |       |       |     0.00   8.833    0.00    0.00      0.000  O       |       |       |       |     0.00   8.917    0.00    0.00      0.000  O       |       |       |       |     0.00   9.000    0.00    0.00      0.000  O       |       |       |       |     0.00   9.083    0.00    0.00      0.000  O       |       |       |       |     0.00   9.167    0.00    0.00      0.000  O       |       |       |       |     0.00   9.250    0.00    0.00      0.000  O       |       |       |       |     0.00   9.333    0.00    0.00      0.000  O       |       |       |       |     0.00   9.417    0.00    0.00      0.000  O       |       |       |       |     0.00   9.500    0.00    0.00      0.000  O       |       |       |       |     0.00   9.583    0.00    0.00      0.000  O       |       |       |       |     0.00   9.667    0.00    0.00      0.000  O       |       |       |       |     0.00   9.750    0.00    0.00      0.000  O       |       |       |       |     0.00   9.833    0.00    0.00      0.000  O       |       |       |       |     0.00   9.917    0.00    0.00      0.000  O       |       |       |       |     0.00  10.000    0.00    0.00      0.000  O       |       |       |       |     0.00  10.083    0.00    0.00      0.000  O       |       |       |       |     0.00  10.167    0.00    0.00      0.000  O       |       |       |       |     0.00  10.250    0.00    0.00      0.000  O       |       |       |       |     0.00  10.333    0.00    0.00      0.000  O       |       |       |       |     0.00  10.417    0.00    0.00      0.000  O       |       |       |       |     0.00  10.500    0.00    0.00      0.000  O       |       |       |       |     0.00  10.583    0.00    0.00      0.000  O       |       |       |       |     0.00  10.667    0.00    0.00      0.000  O       |       |       |       |     0.00  10.750    0.00    0.00      0.000  O       |       |       |       |     0.00  10.833    0.00    0.00      0.000  O       |       |       |       |     0.00  10.917    0.00    0.00      0.000  O       |       |       |       |     0.00  11.000    0.00    0.00      0.000  O       |       |       |       |     0.00  11.083    0.00    0.00      0.000  O       |       |       |       |     0.00  11.167    0.00    0.00      0.000  O       |       |       |       |     0.00  11.250    0.00    0.00      0.000  O       |       |       |       |     0.00  11.333    0.00    0.00      0.000  O       |       |       |       |     0.00  11.417    0.00    0.00      0.000  O       |       |       |       |     0.00  11.500    0.00    0.00      0.000  O       |       |       |       |     0.00  11.583    0.00    0.00      0.000  O       |       |       |       |     0.00  11.667    0.00    0.00      0.000  O       |       |       |       |     0.00  11.750    0.00    0.00      0.000  O       |       |       |       |     0.00  11.833    0.00    0.00      0.000  O       |       |       |       |     0.00  11.917    0.00    0.00      0.000  O       |       |       |       |     0.00  12.000    0.00    0.00      0.000  O       |       |       |       |     0.00  12.083    0.00    0.00      0.000  O       |       |       |       |     0.00  12.167    0.00    0.00      0.000  O       |       |       |       |     0.00  12.250    0.00    0.00      0.000  O       |       |       |       |     0.00  12.333    0.00    0.00      0.000  O       |       |       |       |     0.00  12.417    0.00    0.00      0.000  O       |       |       |       |     0.00  12.500    0.00    0.00      0.000  O       |       |       |       |     0.00  12.583    0.00    0.00      0.000  O       |       |       |       |     0.00  12.667    0.00    0.00      0.000  O       |       |       |       |     0.00  12.750    0.00    0.00      0.000  O       |       |       |       |     0.00  12.833    0.00    0.00      0.000  O       |       |       |       |     0.00  12.917    0.00    0.00      0.000  O       |       |       |       |     0.00  13.000    0.00    0.00      0.000  O       |       |       |       |     0.00  13.083    0.00    0.00      0.000  O       |       |       |       |     0.00  13.167    0.00    0.00      0.000  O       |       |       |       |     0.00  13.250    0.00    0.00      0.000  O       |       |       |       |     0.00  13.333    0.00    0.00      0.000  O       |       |       |       |     0.00  13.417    0.00    0.00      0.000  O       |       |       |       |     0.00  13.500    0.00    0.00      0.000  O       |       |       |       |     0.00  13.583    0.00    0.00      0.000  O       |       |       |       |     0.00  13.667    0.00    0.00      0.000  O       |       |       |       |     0.00  13.750    0.00    0.00      0.000  O       |       |       |       |     0.00  13.833    0.00    0.00      0.000  O       |       |       |       |     0.00  13.917    0.00    0.00      0.000  O       |       |       |       |     0.00  14.000    0.00    0.00      0.000  O       |       |       |       |     0.00  14.083    0.00    0.00      0.000  O       |       |       |       |     0.00  14.167    0.00    0.00      0.000  O       |       |       |       |     0.00  14.250    0.00    0.00      0.000  O       |       |       |       |     0.00  14.333    0.00    0.00      0.000  O       |       |       |       |     0.00  14.417    0.00    0.00      0.000  O       |       |       |       |     0.00  14.500    0.00    0.00      0.000  O       |       |       |       |     0.00  14.583    0.00    0.00      0.000  O       |       |       |       |     0.00  14.667    0.00    0.00      0.000  O       |       |       |       |     0.00  14.750    0.00    0.00      0.000  O       |       |       |       |     0.00  14.833    0.00    0.00      0.000  O       |       |       |       |     0.00  14.917    0.00    0.00      0.000  O       |       |       |       |     0.00  15.000    0.00    0.00      0.000  O       |       |       |       |     0.00  15.083    0.00    0.00      0.000  O       |       |       |       |     0.00  15.167    0.00    0.00      0.000  O       |       |       |       |     0.00  15.250    0.00    0.00      0.000  O       |       |       |       |     0.00  15.333    0.00    0.00      0.000  O       |       |       |       |     0.00  15.417    0.03    0.02      0.000  O       |       |       |       |     0.00  15.500    0.19    0.13      0.000  OI      |       |       |       |     0.00  15.583    0.40    0.33      0.001  | O     |       |       |       |     0.01  15.667    0.51    0.41      0.001  | OI    |       |       |       |     0.05  15.750    0.59    0.41      0.002  | O I   |       |       |       |     0.15  15.833    0.70    0.41      0.004  | O  I  |       |       |       |     0.38  15.917    0.89    0.41      0.007  | O   I |       |       |       |     0.76  16.000    1.26    0.41      0.011  | O     |I      |       |       |     1.17  16.083    2.22    0.41      0.020  | O     |       I       |       |     1.45  16.167    4.30    0.41      0.040  | O     |       |       |      I|     2.05  16.250    4.43    0.41      0.067  | O     |       |       |       I     2.84  16.333    2.16    0.41      0.087  | O     |      I|       |       |     3.29  16.417    1.00    0.41      0.095  | O    I|       |       |       |     3.47  16.500    0.49    0.41      0.097  | OI    |       |       |       |     3.52  16.583    0.12    0.41      0.097  I O     |       |       |       |     3.51  16.667    0.03    0.41      0.094  I O     |       |       |       |     3.46  16.750    0.01    0.41      0.092  I O     |       |       |       |     3.40  16.833    0.00    0.41      0.089  I O     |       |       |       |     3.33  16.917    0.00    0.41      0.086  I O     |       |       |       |     3.27  17.000    0.00    0.41      0.083  I O     |       |       |       |     3.21  17.083    0.00    0.41      0.081  I O     |       |       |       |     3.14  17.167    0.00    0.41      0.078  I O     |       |       |       |     3.08  17.250    0.00    0.41      0.075  I O     |       |       |       |     3.02  17.333    0.00    0.41      0.072  I O     |       |       |       |     2.95  17.417    0.00    0.41      0.069  I O     |       |       |       |     2.89  17.500    0.00    0.41      0.066  I O     |       |       |       |     2.83  17.583    0.00    0.41      0.064  I O     |       |       |       |     2.76  17.667    0.00    0.41      0.061  I O     |       |       |       |     2.68  17.750    0.00    0.41      0.058  I O     |       |       |       |     2.60  17.833    0.00    0.41      0.055  I O     |       |       |       |     2.51  17.917    0.00    0.41      0.052  I O     |       |       |       |     2.42  18.000    0.00    0.41      0.050  I O     |       |       |       |     2.34  18.083    0.00    0.41      0.047  I O     |       |       |       |     2.25  18.167    0.00    0.41      0.044  I O     |       |       |       |     2.17  18.250    0.00    0.41      0.041  I O     |       |       |       |     2.08  18.333    0.00    0.41      0.038  I O     |       |       |       |     1.99  18.417    0.00    0.41      0.035  I O     |       |       |       |     1.91  18.500    0.00    0.41      0.033  I O     |       |       |       |     1.82  18.583    0.00    0.41      0.030  I O     |       |       |       |     1.73  18.667    0.00    0.41      0.027  I O     |       |       |       |     1.65  18.750    0.00    0.41      0.024  I O     |       |       |       |     1.56  18.833    0.00    0.41      0.021  I O     |       |       |       |     1.48  18.917    0.00    0.41      0.018  I O     |       |       |       |     1.39  19.000    0.00    0.41      0.016  I O     |       |       |       |     1.30  19.083    0.00    0.41      0.013  I O     |       |       |       |     1.22  19.167    0.00    0.41      0.010  I O     |       |       |       |     1.13  19.250    0.00    0.41      0.007  I O     |       |       |       |     0.84  19.333    0.00    0.41      0.004  I O     |       |       |       |     0.44  19.417    0.00    0.41      0.002  I O     |       |       |       |     0.06  19.500    0.00    0.02      0.000  O       |       |       |       |     0.00  19.583    0.00    0.00      0.000  O       |       |       |       |     0.00  19.667    0.00    0.00      0.000  O       |       |       |       |     0.00  19.750    0.00    0.00      0.000  O       |       |       |       |     0.00  19.833    0.00    0.00      0.000  O       |       |       |       |     0.00  19.917    0.00    0.00      0.000  O       |       |       |       |     0.00  20.000    0.00    0.00      0.000  O       |       |       |       |     0.00  20.083    0.00    0.00      0.000  O       |       |       |       |     0.00  20.167    0.00    0.00      0.000  O       |       |       |       |     0.00  20.250    0.00    0.00      0.000  O       |       |       |       |     0.00  20.333    0.00    0.00      0.000  O       |       |       |       |     0.00  20.417    0.00    0.00      0.000  O       |       |       |       |     0.00  20.500    0.00    0.00      0.000  O       |       |       |       |     0.00  20.583    0.00    0.00      0.000  O       |       |       |       |     0.00  20.667    0.00    0.00      0.000  O       |       |       |       |     0.00  20.750    0.00    0.00      0.000  O       |       |       |       |     0.00  20.833    0.00    0.00      0.000  O       |       |       |       |     0.00  20.917    0.00    0.00      0.000  O       |       |       |       |     0.00  21.000    0.00    0.00      0.000  O       |       |       |       |     0.00  21.083    0.00    0.00      0.000  O       |       |       |       |     0.00  21.167    0.00    0.00      0.000  O       |       |       |       |     0.00  21.250    0.00    0.00      0.000  O       |       |       |       |     0.00  21.333    0.00    0.00      0.000  O       |       |       |       |     0.00  21.417    0.00    0.00      0.000  O       |       |       |       |     0.00  21.500    0.00    0.00      0.000  O       |       |       |       |     0.00  21.583    0.00    0.00      0.000  O       |       |       |       |     0.00  21.667    0.00    0.00      0.000  O       |       |       |       |     0.00  21.750    0.00    0.00      0.000  O       |       |       |       |     0.00  21.833    0.00    0.00      0.000  O       |       |       |       |     0.00  21.917    0.00    0.00      0.000  O       |       |       |       |     0.00  22.000    0.00    0.00      0.000  O       |       |       |       |     0.00  22.083    0.00    0.00      0.000  O       |       |       |       |     0.00  22.167    0.00    0.00      0.000  O       |       |       |       |     0.00  22.250    0.00    0.00      0.000  O       |       |       |       |     0.00  22.333    0.00    0.00      0.000  O       |       |       |       |     0.00  22.417    0.00    0.00      0.000  O       |       |       |       |     0.00  22.500    0.00    0.00      0.000  O       |       |       |       |     0.00  22.583    0.00    0.00      0.000  O       |       |       |       |     0.00  22.667    0.00    0.00      0.000  O       |       |       |       |     0.00  22.750    0.00    0.00      0.000  O       |       |       |       |     0.00  22.833    0.00    0.00      0.000  O       |       |       |       |     0.00  22.917    0.00    0.00      0.000  O       |       |       |       |     0.00  23.000    0.00    0.00      0.000  O       |       |       |       |     0.00  23.083    0.00    0.00      0.000  O       |       |       |       |     0.00  23.167    0.00    0.00      0.000  O       |       |       |       |     0.00  23.250    0.00    0.00      0.000  O       |       |       |       |     0.00  23.333    0.00    0.00      0.000  O       |       |       |       |     0.00  23.417    0.00    0.00      0.000  O       |       |       |       |     0.00  23.500    0.00    0.00      0.000  O       |       |       |       |     0.00  23.583    0.00    0.00      0.000  O       |       |       |       |     0.00  23.667    0.00    0.00      0.000  O       |       |       |       |     0.00  23.750    0.00    0.00      0.000  O       |       |       |       |     0.00  23.833    0.00    0.00      0.000  O       |       |       |       |     0.00  23.917    0.00    0.00      0.000  O       |       |       |       |     0.00  24.000    0.00    0.00      0.000  O       |       |       |       |     0.00  24.083    0.00    0.00      0.000  O       |       |       |       |     0.00  24.167    0.00    0.00      0.000  O       |       |       |       |     0.00  24.250    0.00    0.00      0.000  O       |       |       |       |     0.00  24.333    0.00    0.00      0.000  O       |       |       |       |     0.00  24.417    0.00    0.00      0.000  O       |       |       |       |     0.00  24.500    0.00    0.00      0.000  O       |       |       |       |     0.00 ****************************HYDROGRAPH DATA**************************** Number of intervals =   294 Time interval =    5.0 (Min.) Maximum/Peak flow rate =        0.410 (CFS) Total volume =       0.134 (Ac.Ft) Status of hydrographs being held in storage            Stream 1  Stream 2  Stream 3  Stream 4  Stream 5 Peak (CFS)      0.000     0.000     0.000     0.000     0.000 Vol (Ac.Ft)      0.000     0.000     0.000     0.000     0.000 *********************************************************************** ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐                      FLOOD HYDROGRAPH ROUTING PROGRAM             Copyright (c) CIVILCADD/CIVILDESIGN, 1989 ‐ 2005                         Study date: 07/01/24 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ JN 4113 FLOOD ROUTING 10 YEAR 3 HOUR STORM ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Program License Serial Number 5016 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ ********************* HYDROGRAPH INFORMATION ********************** From study/file name: 4113UH10Y3H.rte ****************************HYDROGRAPH DATA**************************** Number of intervals =    41 Time interval =    5.0 (Min.) Maximum/Peak flow rate =        8.156 (CFS) Total volume =       0.261 (Ac.Ft) Status of hydrographs being held in storage            Stream 1  Stream 2  Stream 3  Stream 4  Stream 5 Peak (CFS)      0.000     0.000     0.000     0.000     0.000 Vol (Ac.Ft)      0.000     0.000     0.000     0.000     0.000 *********************************************************************** ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station        1.000 to Point/Station        2.000 **** RETARDING BASIN ROUTING **** ______________________________________________________________________ User entry of depth‐outflow‐storage data ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Total number of inflow hydrograph intervals = 41 Hydrograph time unit =  5.000 (Min.) Initial depth in storage basin =   0.00(Ft.) ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Initial basin depth =   0.00 (Ft.) Initial basin storage =      0.00 (Ac.Ft) Initial basin outflow =   0.00 (CFS) ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Depth vs. Storage and Depth vs. Discharge data:  Basin Depth  Storage    Outflow   (S‐O*dt/2)   (S+O*dt/2)      (Ft.)    (Ac.Ft)    (CFS)     (Ac.Ft)    (Ac.Ft) ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐           0.000      0.000      0.000      0.000        0.000           0.010      0.001      0.410     ‐0.000        0.002           0.100      0.002      0.410      0.001        0.003           1.100      0.009      0.410      0.008        0.010           2.750      0.063      0.410      0.062        0.064           4.500      0.141      0.410      0.140        0.142           6.250      0.209      0.410      0.208        0.210           8.000      0.264      0.410      0.263        0.265           8.100      0.266      0.410      0.265        0.267           9.000      0.283      0.410      0.282        0.284           9.100      0.284      0.460      0.282        0.286           9.500      0.285      1.670      0.279        0.291          10.000      0.286      2.920      0.276        0.296 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Hydrograph Detention Basin Routing ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Graph values: 'I'= unit inflow; 'O'=outflow at time shown ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐   Time   Inflow  Outflow    Storage                                     Depth   (Hours)  (CFS)   (CFS)     (Ac.Ft) .0       2.0    4.08    6.12    8.16 (Ft.)   0.083    0.00    0.00      0.000  O       |       |       |       |     0.00   0.167    0.00    0.00      0.000  O       |       |       |       |     0.00   0.250    0.00    0.00      0.000  O       |       |       |       |     0.00   0.333    0.00    0.00      0.000  O       |       |       |       |     0.00   0.417    0.00    0.00      0.000  O       |       |       |       |     0.00   0.500    0.00    0.00      0.000  O       |       |       |       |     0.00   0.583    0.00    0.00      0.000  O       |       |       |       |     0.00   0.667    0.00    0.00      0.000  O       |       |       |       |     0.00   0.750    0.00    0.00      0.000  O       |       |       |       |     0.00   0.833    0.00    0.00      0.000  O       |       |       |       |     0.00   0.917    0.00    0.00      0.000  O       |       |       |       |     0.00   1.000    0.00    0.00      0.000  O       |       |       |       |     0.00   1.083    0.00    0.00      0.000  O       |       |       |       |     0.00   1.167    0.00    0.00      0.000  O       |       |       |       |     0.00   1.250    0.00    0.00      0.000  O       |       |       |       |     0.00   1.333    0.00    0.00      0.000  O       |       |       |       |     0.00   1.417    0.06    0.04      0.000  O       |       |       |       |     0.00   1.500    0.42    0.28      0.001  |O      |       |       |       |     0.01   1.583    0.86    0.41      0.003  |O I    |       |       |       |     0.20   1.667    1.12    0.41      0.007  |O  I   |       |       |       |     0.77   1.750    1.32    0.41      0.012  |O   I  |       |       |       |     1.20   1.833    1.58    0.41      0.019  |O    I |       |       |       |     1.42   1.917    1.95    0.41      0.029  |O     I|       |       |       |     1.70   2.000    2.61    0.41      0.042  |O      | I     |       |       |     2.10   2.083    4.32    0.41      0.063  |O      |       I       |       |     2.74   2.167    8.04    0.41      0.102  |O      |       |       |      I|     3.64   2.250    8.16    0.41      0.155  |O      |       |       |       I     4.87   2.333    4.12    0.41      0.195  |O      |       I       |       |     5.89   2.417    2.02    0.41      0.213  |O     I|       |       |       |     6.38   2.500    1.01    0.41      0.221  |O I    |       |       |       |     6.63   2.583    0.26    0.41      0.222  |O      |       |       |       |     6.68   2.667    0.06    0.41      0.221  IO      |       |       |       |     6.62   2.750    0.02    0.41      0.218  IO      |       |       |       |     6.54   2.833    0.00    0.41      0.215  IO      |       |       |       |     6.45   2.917    0.00    0.41      0.213  IO      |       |       |       |     6.36   3.000    0.00    0.41      0.210  IO      |       |       |       |     6.27   3.083    0.00    0.41      0.207  IO      |       |       |       |     6.20   3.167    0.00    0.41      0.204  IO      |       |       |       |     6.12   3.250    0.00    0.41      0.201  IO      |       |       |       |     6.05   3.333    0.00    0.41      0.198  IO      |       |       |       |     5.98   3.417    0.00    0.41      0.196  IO      |       |       |       |     5.90   3.500    0.00    0.41      0.193  IO      |       |       |       |     5.83   3.583    0.00    0.41      0.190  IO      |       |       |       |     5.76   3.667    0.00    0.41      0.187  IO      |       |       |       |     5.69   3.750    0.00    0.41      0.184  IO      |       |       |       |     5.61   3.833    0.00    0.41      0.181  IO      |       |       |       |     5.54   3.917    0.00    0.41      0.179  IO      |       |       |       |     5.47   4.000    0.00    0.41      0.176  IO      |       |       |       |     5.40   4.083    0.00    0.41      0.173  IO      |       |       |       |     5.32   4.167    0.00    0.41      0.170  IO      |       |       |       |     5.25   4.250    0.00    0.41      0.167  IO      |       |       |       |     5.18   4.333    0.00    0.41      0.165  IO      |       |       |       |     5.11   4.417    0.00    0.41      0.162  IO      |       |       |       |     5.03   4.500    0.00    0.41      0.159  IO      |       |       |       |     4.96   4.583    0.00    0.41      0.156  IO      |       |       |       |     4.89   4.667    0.00    0.41      0.153  IO      |       |       |       |     4.81   4.750    0.00    0.41      0.150  IO      |       |       |       |     4.74   4.833    0.00    0.41      0.148  IO      |       |       |       |     4.67   4.917    0.00    0.41      0.145  IO      |       |       |       |     4.60   5.000    0.00    0.41      0.142  IO      |       |       |       |     4.52   5.083    0.00    0.41      0.139  IO      |       |       |       |     4.46   5.167    0.00    0.41      0.136  IO      |       |       |       |     4.39   5.250    0.00    0.41      0.133  IO      |       |       |       |     4.33   5.333    0.00    0.41      0.131  IO      |       |       |       |     4.27   5.417    0.00    0.41      0.128  IO      |       |       |       |     4.20   5.500    0.00    0.41      0.125  IO      |       |       |       |     4.14   5.583    0.00    0.41      0.122  IO      |       |       |       |     4.08   5.667    0.00    0.41      0.119  IO      |       |       |       |     4.01   5.750    0.00    0.41      0.117  IO      |       |       |       |     3.95   5.833    0.00    0.41      0.114  IO      |       |       |       |     3.89   5.917    0.00    0.41      0.111  IO      |       |       |       |     3.82   6.000    0.00    0.41      0.108  IO      |       |       |       |     3.76   6.083    0.00    0.41      0.105  IO      |       |       |       |     3.70   6.167    0.00    0.41      0.102  IO      |       |       |       |     3.63   6.250    0.00    0.41      0.100  IO      |       |       |       |     3.57   6.333    0.00    0.41      0.097  IO      |       |       |       |     3.51   6.417    0.00    0.41      0.094  IO      |       |       |       |     3.44   6.500    0.00    0.41      0.091  IO      |       |       |       |     3.38   6.583    0.00    0.41      0.088  IO      |       |       |       |     3.32   6.667    0.00    0.41      0.085  IO      |       |       |       |     3.25   6.750    0.00    0.41      0.083  IO      |       |       |       |     3.19   6.833    0.00    0.41      0.080  IO      |       |       |       |     3.13   6.917    0.00    0.41      0.077  IO      |       |       |       |     3.06   7.000    0.00    0.41      0.074  IO      |       |       |       |     3.00   7.083    0.00    0.41      0.071  IO      |       |       |       |     2.94   7.167    0.00    0.41      0.069  IO      |       |       |       |     2.87   7.250    0.00    0.41      0.066  IO      |       |       |       |     2.81   7.333    0.00    0.41      0.063  IO      |       |       |       |     2.75   7.417    0.00    0.41      0.060  IO      |       |       |       |     2.66   7.500    0.00    0.41      0.057  IO      |       |       |       |     2.57   7.583    0.00    0.41      0.054  IO      |       |       |       |     2.49   7.667    0.00    0.41      0.052  IO      |       |       |       |     2.40   7.750    0.00    0.41      0.049  IO      |       |       |       |     2.31   7.833    0.00    0.41      0.046  IO      |       |       |       |     2.23   7.917    0.00    0.41      0.043  IO      |       |       |       |     2.14   8.000    0.00    0.41      0.040  IO      |       |       |       |     2.06   8.083    0.00    0.41      0.037  IO      |       |       |       |     1.97   8.167    0.00    0.41      0.035  IO      |       |       |       |     1.88   8.250    0.00    0.41      0.032  IO      |       |       |       |     1.80   8.333    0.00    0.41      0.029  IO      |       |       |       |     1.71   8.417    0.00    0.41      0.026  IO      |       |       |       |     1.62   8.500    0.00    0.41      0.023  IO      |       |       |       |     1.54   8.583    0.00    0.41      0.021  IO      |       |       |       |     1.45   8.667    0.00    0.41      0.018  IO      |       |       |       |     1.37   8.750    0.00    0.41      0.015  IO      |       |       |       |     1.28   8.833    0.00    0.41      0.012  IO      |       |       |       |     1.19   8.917    0.00    0.41      0.009  IO      |       |       |       |     1.11   9.000    0.00    0.41      0.006  IO      |       |       |       |     0.73   9.083    0.00    0.41      0.004  IO      |       |       |       |     0.32   9.167    0.00    0.37      0.001  IO      |       |       |       |     0.01   9.250    0.00    0.00      0.000  O       |       |       |       |     0.00 ****************************HYDROGRAPH DATA**************************** Number of intervals =   111 Time interval =    5.0 (Min.) Maximum/Peak flow rate =        0.410 (CFS) Total volume =       0.262 (Ac.Ft) Status of hydrographs being held in storage            Stream 1  Stream 2  Stream 3  Stream 4  Stream 5 Peak (CFS)      0.000     0.000     0.000     0.000     0.000 Vol (Ac.Ft)      0.000     0.000     0.000     0.000     0.000 *********************************************************************** ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐                      FLOOD HYDROGRAPH ROUTING PROGRAM             Copyright (c) CIVILCADD/CIVILDESIGN, 1989 ‐ 2005                         Study date: 07/01/24 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ JN 4113 FLOOD ROUTING 10 YEAR 24 HOUR STORM ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Program License Serial Number 5016 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ ********************* HYDROGRAPH INFORMATION ********************** From study/file name: 4113UH10Y24H.rte ****************************HYDROGRAPH DATA**************************** Number of intervals =   293 Time interval =    5.0 (Min.) Maximum/Peak flow rate =        8.156 (CFS) Total volume =       0.262 (Ac.Ft) Status of hydrographs being held in storage            Stream 1  Stream 2  Stream 3  Stream 4  Stream 5 Peak (CFS)      0.000     0.000     0.000     0.000     0.000 Vol (Ac.Ft)      0.000     0.000     0.000     0.000     0.000 *********************************************************************** ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station        1.000 to Point/Station        2.000 **** RETARDING BASIN ROUTING **** ______________________________________________________________________ User entry of depth‐outflow‐storage data ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Total number of inflow hydrograph intervals = 293 Hydrograph time unit =  5.000 (Min.) Initial depth in storage basin =   0.00(Ft.) ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Initial basin depth =   0.00 (Ft.) Initial basin storage =      0.00 (Ac.Ft) Initial basin outflow =   0.00 (CFS) ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Depth vs. Storage and Depth vs. Discharge data:  Basin Depth  Storage    Outflow   (S‐O*dt/2)   (S+O*dt/2)      (Ft.)    (Ac.Ft)    (CFS)     (Ac.Ft)    (Ac.Ft) ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐           0.000      0.000      0.000      0.000        0.000           0.010      0.001      0.410     ‐0.000        0.002           0.100      0.002      0.410      0.001        0.003           1.100      0.009      0.410      0.008        0.010           2.750      0.063      0.410      0.062        0.064           4.500      0.141      0.410      0.140        0.142           6.250      0.209      0.410      0.208        0.210           8.000      0.264      0.410      0.263        0.265           8.100      0.266      0.410      0.265        0.267           9.000      0.283      0.410      0.282        0.284           9.100      0.284      0.460      0.282        0.286           9.500      0.285      1.670      0.279        0.291          10.000      0.286      2.920      0.276        0.296 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Hydrograph Detention Basin Routing ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Graph values: 'I'= unit inflow; 'O'=outflow at time shown ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐   Time   Inflow  Outflow    Storage                                     Depth   (Hours)  (CFS)   (CFS)     (Ac.Ft) .0       2.0    4.08    6.12    8.16 (Ft.)   0.083    0.00    0.00      0.000  O       |       |       |       |     0.00   0.167    0.00    0.00      0.000  O       |       |       |       |     0.00   0.250    0.00    0.00      0.000  O       |       |       |       |     0.00   0.333    0.00    0.00      0.000  O       |       |       |       |     0.00   0.417    0.00    0.00      0.000  O       |       |       |       |     0.00   0.500    0.00    0.00      0.000  O       |       |       |       |     0.00   0.583    0.00    0.00      0.000  O       |       |       |       |     0.00   0.667    0.00    0.00      0.000  O       |       |       |       |     0.00   0.750    0.00    0.00      0.000  O       |       |       |       |     0.00   0.833    0.00    0.00      0.000  O       |       |       |       |     0.00   0.917    0.00    0.00      0.000  O       |       |       |       |     0.00   1.000    0.00    0.00      0.000  O       |       |       |       |     0.00   1.083    0.00    0.00      0.000  O       |       |       |       |     0.00   1.167    0.00    0.00      0.000  O       |       |       |       |     0.00   1.250    0.00    0.00      0.000  O       |       |       |       |     0.00   1.333    0.00    0.00      0.000  O       |       |       |       |     0.00   1.417    0.00    0.00      0.000  O       |       |       |       |     0.00   1.500    0.00    0.00      0.000  O       |       |       |       |     0.00   1.583    0.00    0.00      0.000  O       |       |       |       |     0.00   1.667    0.00    0.00      0.000  O       |       |       |       |     0.00   1.750    0.00    0.00      0.000  O       |       |       |       |     0.00   1.833    0.00    0.00      0.000  O       |       |       |       |     0.00   1.917    0.00    0.00      0.000  O       |       |       |       |     0.00   2.000    0.00    0.00      0.000  O       |       |       |       |     0.00   2.083    0.00    0.00      0.000  O       |       |       |       |     0.00   2.167    0.00    0.00      0.000  O       |       |       |       |     0.00   2.250    0.00    0.00      0.000  O       |       |       |       |     0.00   2.333    0.00    0.00      0.000  O       |       |       |       |     0.00   2.417    0.00    0.00      0.000  O       |       |       |       |     0.00   2.500    0.00    0.00      0.000  O       |       |       |       |     0.00   2.583    0.00    0.00      0.000  O       |       |       |       |     0.00   2.667    0.00    0.00      0.000  O       |       |       |       |     0.00   2.750    0.00    0.00      0.000  O       |       |       |       |     0.00   2.833    0.00    0.00      0.000  O       |       |       |       |     0.00   2.917    0.00    0.00      0.000  O       |       |       |       |     0.00   3.000    0.00    0.00      0.000  O       |       |       |       |     0.00   3.083    0.00    0.00      0.000  O       |       |       |       |     0.00   3.167    0.00    0.00      0.000  O       |       |       |       |     0.00   3.250    0.00    0.00      0.000  O       |       |       |       |     0.00   3.333    0.00    0.00      0.000  O       |       |       |       |     0.00   3.417    0.00    0.00      0.000  O       |       |       |       |     0.00   3.500    0.00    0.00      0.000  O       |       |       |       |     0.00   3.583    0.00    0.00      0.000  O       |       |       |       |     0.00   3.667    0.00    0.00      0.000  O       |       |       |       |     0.00   3.750    0.00    0.00      0.000  O       |       |       |       |     0.00   3.833    0.00    0.00      0.000  O       |       |       |       |     0.00   3.917    0.00    0.00      0.000  O       |       |       |       |     0.00   4.000    0.00    0.00      0.000  O       |       |       |       |     0.00   4.083    0.00    0.00      0.000  O       |       |       |       |     0.00   4.167    0.00    0.00      0.000  O       |       |       |       |     0.00   4.250    0.00    0.00      0.000  O       |       |       |       |     0.00   4.333    0.00    0.00      0.000  O       |       |       |       |     0.00   4.417    0.00    0.00      0.000  O       |       |       |       |     0.00   4.500    0.00    0.00      0.000  O       |       |       |       |     0.00   4.583    0.00    0.00      0.000  O       |       |       |       |     0.00   4.667    0.00    0.00      0.000  O       |       |       |       |     0.00   4.750    0.00    0.00      0.000  O       |       |       |       |     0.00   4.833    0.00    0.00      0.000  O       |       |       |       |     0.00   4.917    0.00    0.00      0.000  O       |       |       |       |     0.00   5.000    0.00    0.00      0.000  O       |       |       |       |     0.00   5.083    0.00    0.00      0.000  O       |       |       |       |     0.00   5.167    0.00    0.00      0.000  O       |       |       |       |     0.00   5.250    0.00    0.00      0.000  O       |       |       |       |     0.00   5.333    0.00    0.00      0.000  O       |       |       |       |     0.00   5.417    0.00    0.00      0.000  O       |       |       |       |     0.00   5.500    0.00    0.00      0.000  O       |       |       |       |     0.00   5.583    0.00    0.00      0.000  O       |       |       |       |     0.00   5.667    0.00    0.00      0.000  O       |       |       |       |     0.00   5.750    0.00    0.00      0.000  O       |       |       |       |     0.00   5.833    0.00    0.00      0.000  O       |       |       |       |     0.00   5.917    0.00    0.00      0.000  O       |       |       |       |     0.00   6.000    0.00    0.00      0.000  O       |       |       |       |     0.00   6.083    0.00    0.00      0.000  O       |       |       |       |     0.00   6.167    0.00    0.00      0.000  O       |       |       |       |     0.00   6.250    0.00    0.00      0.000  O       |       |       |       |     0.00   6.333    0.00    0.00      0.000  O       |       |       |       |     0.00   6.417    0.00    0.00      0.000  O       |       |       |       |     0.00   6.500    0.00    0.00      0.000  O       |       |       |       |     0.00   6.583    0.00    0.00      0.000  O       |       |       |       |     0.00   6.667    0.00    0.00      0.000  O       |       |       |       |     0.00   6.750    0.00    0.00      0.000  O       |       |       |       |     0.00   6.833    0.00    0.00      0.000  O       |       |       |       |     0.00   6.917    0.00    0.00      0.000  O       |       |       |       |     0.00   7.000    0.00    0.00      0.000  O       |       |       |       |     0.00   7.083    0.00    0.00      0.000  O       |       |       |       |     0.00   7.167    0.00    0.00      0.000  O       |       |       |       |     0.00   7.250    0.00    0.00      0.000  O       |       |       |       |     0.00   7.333    0.00    0.00      0.000  O       |       |       |       |     0.00   7.417    0.00    0.00      0.000  O       |       |       |       |     0.00   7.500    0.00    0.00      0.000  O       |       |       |       |     0.00   7.583    0.00    0.00      0.000  O       |       |       |       |     0.00   7.667    0.00    0.00      0.000  O       |       |       |       |     0.00   7.750    0.00    0.00      0.000  O       |       |       |       |     0.00   7.833    0.00    0.00      0.000  O       |       |       |       |     0.00   7.917    0.00    0.00      0.000  O       |       |       |       |     0.00   8.000    0.00    0.00      0.000  O       |       |       |       |     0.00   8.083    0.00    0.00      0.000  O       |       |       |       |     0.00   8.167    0.00    0.00      0.000  O       |       |       |       |     0.00   8.250    0.00    0.00      0.000  O       |       |       |       |     0.00   8.333    0.00    0.00      0.000  O       |       |       |       |     0.00   8.417    0.00    0.00      0.000  O       |       |       |       |     0.00   8.500    0.00    0.00      0.000  O       |       |       |       |     0.00   8.583    0.00    0.00      0.000  O       |       |       |       |     0.00   8.667    0.00    0.00      0.000  O       |       |       |       |     0.00   8.750    0.00    0.00      0.000  O       |       |       |       |     0.00   8.833    0.00    0.00      0.000  O       |       |       |       |     0.00   8.917    0.00    0.00      0.000  O       |       |       |       |     0.00   9.000    0.00    0.00      0.000  O       |       |       |       |     0.00   9.083    0.00    0.00      0.000  O       |       |       |       |     0.00   9.167    0.00    0.00      0.000  O       |       |       |       |     0.00   9.250    0.00    0.00      0.000  O       |       |       |       |     0.00   9.333    0.00    0.00      0.000  O       |       |       |       |     0.00   9.417    0.00    0.00      0.000  O       |       |       |       |     0.00   9.500    0.00    0.00      0.000  O       |       |       |       |     0.00   9.583    0.00    0.00      0.000  O       |       |       |       |     0.00   9.667    0.00    0.00      0.000  O       |       |       |       |     0.00   9.750    0.00    0.00      0.000  O       |       |       |       |     0.00   9.833    0.00    0.00      0.000  O       |       |       |       |     0.00   9.917    0.00    0.00      0.000  O       |       |       |       |     0.00  10.000    0.00    0.00      0.000  O       |       |       |       |     0.00  10.083    0.00    0.00      0.000  O       |       |       |       |     0.00  10.167    0.00    0.00      0.000  O       |       |       |       |     0.00  10.250    0.00    0.00      0.000  O       |       |       |       |     0.00  10.333    0.00    0.00      0.000  O       |       |       |       |     0.00  10.417    0.00    0.00      0.000  O       |       |       |       |     0.00  10.500    0.00    0.00      0.000  O       |       |       |       |     0.00  10.583    0.00    0.00      0.000  O       |       |       |       |     0.00  10.667    0.00    0.00      0.000  O       |       |       |       |     0.00  10.750    0.00    0.00      0.000  O       |       |       |       |     0.00  10.833    0.00    0.00      0.000  O       |       |       |       |     0.00  10.917    0.00    0.00      0.000  O       |       |       |       |     0.00  11.000    0.00    0.00      0.000  O       |       |       |       |     0.00  11.083    0.00    0.00      0.000  O       |       |       |       |     0.00  11.167    0.00    0.00      0.000  O       |       |       |       |     0.00  11.250    0.00    0.00      0.000  O       |       |       |       |     0.00  11.333    0.00    0.00      0.000  O       |       |       |       |     0.00  11.417    0.00    0.00      0.000  O       |       |       |       |     0.00  11.500    0.00    0.00      0.000  O       |       |       |       |     0.00  11.583    0.00    0.00      0.000  O       |       |       |       |     0.00  11.667    0.00    0.00      0.000  O       |       |       |       |     0.00  11.750    0.00    0.00      0.000  O       |       |       |       |     0.00  11.833    0.00    0.00      0.000  O       |       |       |       |     0.00  11.917    0.00    0.00      0.000  O       |       |       |       |     0.00  12.000    0.00    0.00      0.000  O       |       |       |       |     0.00  12.083    0.00    0.00      0.000  O       |       |       |       |     0.00  12.167    0.00    0.00      0.000  O       |       |       |       |     0.00  12.250    0.00    0.00      0.000  O       |       |       |       |     0.00  12.333    0.00    0.00      0.000  O       |       |       |       |     0.00  12.417    0.00    0.00      0.000  O       |       |       |       |     0.00  12.500    0.00    0.00      0.000  O       |       |       |       |     0.00  12.583    0.00    0.00      0.000  O       |       |       |       |     0.00  12.667    0.00    0.00      0.000  O       |       |       |       |     0.00  12.750    0.00    0.00      0.000  O       |       |       |       |     0.00  12.833    0.00    0.00      0.000  O       |       |       |       |     0.00  12.917    0.00    0.00      0.000  O       |       |       |       |     0.00  13.000    0.00    0.00      0.000  O       |       |       |       |     0.00  13.083    0.00    0.00      0.000  O       |       |       |       |     0.00  13.167    0.00    0.00      0.000  O       |       |       |       |     0.00  13.250    0.00    0.00      0.000  O       |       |       |       |     0.00  13.333    0.00    0.00      0.000  O       |       |       |       |     0.00  13.417    0.00    0.00      0.000  O       |       |       |       |     0.00  13.500    0.00    0.00      0.000  O       |       |       |       |     0.00  13.583    0.00    0.00      0.000  O       |       |       |       |     0.00  13.667    0.00    0.00      0.000  O       |       |       |       |     0.00  13.750    0.00    0.00      0.000  O       |       |       |       |     0.00  13.833    0.00    0.00      0.000  O       |       |       |       |     0.00  13.917    0.00    0.00      0.000  O       |       |       |       |     0.00  14.000    0.00    0.00      0.000  O       |       |       |       |     0.00  14.083    0.00    0.00      0.000  O       |       |       |       |     0.00  14.167    0.00    0.00      0.000  O       |       |       |       |     0.00  14.250    0.00    0.00      0.000  O       |       |       |       |     0.00  14.333    0.00    0.00      0.000  O       |       |       |       |     0.00  14.417    0.00    0.00      0.000  O       |       |       |       |     0.00  14.500    0.00    0.00      0.000  O       |       |       |       |     0.00  14.583    0.00    0.00      0.000  O       |       |       |       |     0.00  14.667    0.00    0.00      0.000  O       |       |       |       |     0.00  14.750    0.00    0.00      0.000  O       |       |       |       |     0.00  14.833    0.00    0.00      0.000  O       |       |       |       |     0.00  14.917    0.00    0.00      0.000  O       |       |       |       |     0.00  15.000    0.00    0.00      0.000  O       |       |       |       |     0.00  15.083    0.00    0.00      0.000  O       |       |       |       |     0.00  15.167    0.00    0.00      0.000  O       |       |       |       |     0.00  15.250    0.00    0.00      0.000  O       |       |       |       |     0.00  15.333    0.00    0.00      0.000  O       |       |       |       |     0.00  15.417    0.06    0.04      0.000  O       |       |       |       |     0.00  15.500    0.42    0.28      0.001  |O      |       |       |       |     0.01  15.583    0.86    0.41      0.003  |O I    |       |       |       |     0.20  15.667    1.12    0.41      0.007  |O  I   |       |       |       |     0.77  15.750    1.32    0.41      0.012  |O   I  |       |       |       |     1.20  15.833    1.58    0.41      0.019  |O    I |       |       |       |     1.42  15.917    1.95    0.41      0.029  |O     I|       |       |       |     1.70  16.000    2.61    0.41      0.042  |O      | I     |       |       |     2.10  16.083    4.32    0.41      0.063  |O      |       I       |       |     2.74  16.167    8.04    0.41      0.102  |O      |       |       |      I|     3.64  16.250    8.16    0.41      0.155  |O      |       |       |       I     4.87  16.333    4.12    0.41      0.195  |O      |       I       |       |     5.89  16.417    2.02    0.41      0.213  |O     I|       |       |       |     6.38  16.500    1.01    0.41      0.221  |O I    |       |       |       |     6.63  16.583    0.26    0.41      0.222  |O      |       |       |       |     6.68  16.667    0.06    0.41      0.221  IO      |       |       |       |     6.62  16.750    0.02    0.41      0.218  IO      |       |       |       |     6.54  16.833    0.00    0.41      0.215  IO      |       |       |       |     6.45  16.917    0.00    0.41      0.213  IO      |       |       |       |     6.36  17.000    0.00    0.41      0.210  IO      |       |       |       |     6.27  17.083    0.00    0.41      0.207  IO      |       |       |       |     6.20  17.167    0.00    0.41      0.204  IO      |       |       |       |     6.12  17.250    0.00    0.41      0.201  IO      |       |       |       |     6.05  17.333    0.00    0.41      0.198  IO      |       |       |       |     5.98  17.417    0.00    0.41      0.196  IO      |       |       |       |     5.91  17.500    0.00    0.41      0.193  IO      |       |       |       |     5.83  17.583    0.00    0.41      0.190  IO      |       |       |       |     5.76  17.667    0.00    0.41      0.187  IO      |       |       |       |     5.69  17.750    0.00    0.41      0.184  IO      |       |       |       |     5.62  17.833    0.00    0.41      0.182  IO      |       |       |       |     5.54  17.917    0.00    0.41      0.179  IO      |       |       |       |     5.47  18.000    0.00    0.41      0.176  IO      |       |       |       |     5.40  18.083    0.00    0.41      0.173  IO      |       |       |       |     5.33  18.167    0.00    0.41      0.170  IO      |       |       |       |     5.25  18.250    0.00    0.41      0.167  IO      |       |       |       |     5.18  18.333    0.00    0.41      0.165  IO      |       |       |       |     5.11  18.417    0.00    0.41      0.162  IO      |       |       |       |     5.03  18.500    0.00    0.41      0.159  IO      |       |       |       |     4.96  18.583    0.00    0.41      0.156  IO      |       |       |       |     4.89  18.667    0.00    0.41      0.153  IO      |       |       |       |     4.82  18.750    0.00    0.41      0.150  IO      |       |       |       |     4.74  18.833    0.00    0.41      0.148  IO      |       |       |       |     4.67  18.917    0.00    0.41      0.145  IO      |       |       |       |     4.60  19.000    0.00    0.41      0.142  IO      |       |       |       |     4.53  19.083    0.00    0.41      0.139  IO      |       |       |       |     4.46  19.167    0.00    0.41      0.136  IO      |       |       |       |     4.40  19.250    0.00    0.41      0.134  IO      |       |       |       |     4.33  19.333    0.00    0.41      0.131  IO      |       |       |       |     4.27  19.417    0.00    0.41      0.128  IO      |       |       |       |     4.21  19.500    0.00    0.41      0.125  IO      |       |       |       |     4.14  19.583    0.00    0.41      0.122  IO      |       |       |       |     4.08  19.667    0.00    0.41      0.119  IO      |       |       |       |     4.02  19.750    0.00    0.41      0.117  IO      |       |       |       |     3.95  19.833    0.00    0.41      0.114  IO      |       |       |       |     3.89  19.917    0.00    0.41      0.111  IO      |       |       |       |     3.83  20.000    0.00    0.41      0.108  IO      |       |       |       |     3.76  20.083    0.00    0.41      0.105  IO      |       |       |       |     3.70  20.167    0.00    0.41      0.103  IO      |       |       |       |     3.64  20.250    0.00    0.41      0.100  IO      |       |       |       |     3.57  20.333    0.00    0.41      0.097  IO      |       |       |       |     3.51  20.417    0.00    0.41      0.094  IO      |       |       |       |     3.45  20.500    0.00    0.41      0.091  IO      |       |       |       |     3.38  20.583    0.00    0.41      0.088  IO      |       |       |       |     3.32  20.667    0.00    0.41      0.086  IO      |       |       |       |     3.26  20.750    0.00    0.41      0.083  IO      |       |       |       |     3.19  20.833    0.00    0.41      0.080  IO      |       |       |       |     3.13  20.917    0.00    0.41      0.077  IO      |       |       |       |     3.07  21.000    0.00    0.41      0.074  IO      |       |       |       |     3.00  21.083    0.00    0.41      0.071  IO      |       |       |       |     2.94  21.167    0.00    0.41      0.069  IO      |       |       |       |     2.88  21.250    0.00    0.41      0.066  IO      |       |       |       |     2.81  21.333    0.00    0.41      0.063  IO      |       |       |       |     2.75  21.417    0.00    0.41      0.060  IO      |       |       |       |     2.66  21.500    0.00    0.41      0.057  IO      |       |       |       |     2.58  21.583    0.00    0.41      0.055  IO      |       |       |       |     2.49  21.667    0.00    0.41      0.052  IO      |       |       |       |     2.40  21.750    0.00    0.41      0.049  IO      |       |       |       |     2.32  21.833    0.00    0.41      0.046  IO      |       |       |       |     2.23  21.917    0.00    0.41      0.043  IO      |       |       |       |     2.15  22.000    0.00    0.41      0.040  IO      |       |       |       |     2.06  22.083    0.00    0.41      0.038  IO      |       |       |       |     1.97  22.167    0.00    0.41      0.035  IO      |       |       |       |     1.89  22.250    0.00    0.41      0.032  IO      |       |       |       |     1.80  22.333    0.00    0.41      0.029  IO      |       |       |       |     1.71  22.417    0.00    0.41      0.026  IO      |       |       |       |     1.63  22.500    0.00    0.41      0.023  IO      |       |       |       |     1.54  22.583    0.00    0.41      0.021  IO      |       |       |       |     1.46  22.667    0.00    0.41      0.018  IO      |       |       |       |     1.37  22.750    0.00    0.41      0.015  IO      |       |       |       |     1.28  22.833    0.00    0.41      0.012  IO      |       |       |       |     1.20  22.917    0.00    0.41      0.009  IO      |       |       |       |     1.11  23.000    0.00    0.41      0.007  IO      |       |       |       |     0.75  23.083    0.00    0.41      0.004  IO      |       |       |       |     0.34  23.167    0.00    0.39      0.001  IO      |       |       |       |     0.01  23.250    0.00    0.00      0.000  O       |       |       |       |     0.00  23.333    0.00    0.01      0.000  O       |       |       |       |     0.00  23.417    0.00    0.00      0.000  O       |       |       |       |     0.00  23.500    0.00    0.00      0.000  O       |       |       |       |     0.00  23.583    0.00    0.00      0.000  O       |       |       |       |     0.00  23.667    0.00    0.00      0.000  O       |       |       |       |     0.00  23.750    0.00    0.00      0.000  O       |       |       |       |     0.00  23.833    0.00    0.00      0.000  O       |       |       |       |     0.00  23.917    0.00    0.00      0.000  O       |       |       |       |     0.00  24.000    0.00    0.00      0.000  O       |       |       |       |     0.00  24.083    0.00    0.00      0.000  O       |       |       |       |     0.00  24.167    0.00    0.00      0.000  O       |       |       |       |     0.00  24.250    0.00    0.00      0.000  O       |       |       |       |     0.00  24.333    0.00    0.00      0.000  O       |       |       |       |     0.00  24.417    0.00    0.00      0.000  O       |       |       |       |     0.00  24.500    0.00    0.00      0.000  O       |       |       |       |     0.00 ****************************HYDROGRAPH DATA**************************** Number of intervals =   294 Time interval =    5.0 (Min.) Maximum/Peak flow rate =        0.410 (CFS) Total volume =       0.262 (Ac.Ft) Status of hydrographs being held in storage            Stream 1  Stream 2  Stream 3  Stream 4  Stream 5 Peak (CFS)      0.000     0.000     0.000     0.000     0.000 Vol (Ac.Ft)      0.000     0.000     0.000     0.000     0.000 *********************************************************************** ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐                      FLOOD HYDROGRAPH ROUTING PROGRAM             Copyright (c) CIVILCADD/CIVILDESIGN, 1989 ‐ 2005                         Study date: 07/24/24 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ JN 4113 FLOOD ROUTING 25 YEAR 3 HOUR STORM ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Program License Serial Number 5016 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ ********************* HYDROGRAPH INFORMATION ********************** From study/file name: 4113UH25Y3H.rte ****************************HYDROGRAPH DATA**************************** Number of intervals =    41 Time interval =    5.0 (Min.) Maximum/Peak flow rate =       10.272 (CFS) Total volume =       0.336 (Ac.Ft) Status of hydrographs being held in storage            Stream 1  Stream 2  Stream 3  Stream 4  Stream 5 Peak (CFS)      0.000     0.000     0.000     0.000     0.000 Vol (Ac.Ft)      0.000     0.000     0.000     0.000     0.000 *********************************************************************** ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station        1.000 to Point/Station        2.000 **** RETARDING BASIN ROUTING **** ______________________________________________________________________ User entry of depth‐outflow‐storage data ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Total number of inflow hydrograph intervals = 41 Hydrograph time unit =  5.000 (Min.) Initial depth in storage basin =   0.00(Ft.) ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Initial basin depth =   0.00 (Ft.) Initial basin storage =      0.00 (Ac.Ft) Initial basin outflow =   0.00 (CFS) ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Depth vs. Storage and Depth vs. Discharge data:  Basin Depth  Storage    Outflow   (S‐O*dt/2)   (S+O*dt/2)      (Ft.)    (Ac.Ft)    (CFS)     (Ac.Ft)    (Ac.Ft) ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐           0.000      0.000      0.000      0.000        0.000           0.010      0.001      0.410     ‐0.000        0.002           0.100      0.002      0.410      0.001        0.003           1.100      0.009      0.410      0.008        0.010           2.750      0.063      0.410      0.062        0.064           4.500      0.141      0.410      0.140        0.142           6.250      0.209      0.410      0.208        0.210           8.000      0.264      0.410      0.263        0.265           8.100      0.266      0.410      0.265        0.267           9.000      0.283      0.410      0.282        0.284           9.100      0.284      0.460      0.282        0.286           9.500      0.285      1.670      0.279        0.291          10.000      0.286      2.920      0.276        0.296 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Hydrograph Detention Basin Routing ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Graph values: 'I'= unit inflow; 'O'=outflow at time shown ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐   Time   Inflow  Outflow    Storage                                     Depth   (Hours)  (CFS)   (CFS)     (Ac.Ft) .0       2.6    5.14    7.70   10.27 (Ft.)   0.083    0.00    0.00      0.000  O       |       |       |       |     0.00   0.167    0.00    0.00      0.000  O       |       |       |       |     0.00   0.250    0.00    0.00      0.000  O       |       |       |       |     0.00   0.333    0.00    0.00      0.000  O       |       |       |       |     0.00   0.417    0.00    0.00      0.000  O       |       |       |       |     0.00   0.500    0.00    0.00      0.000  O       |       |       |       |     0.00   0.583    0.00    0.00      0.000  O       |       |       |       |     0.00   0.667    0.00    0.00      0.000  O       |       |       |       |     0.00   0.750    0.00    0.00      0.000  O       |       |       |       |     0.00   0.833    0.00    0.00      0.000  O       |       |       |       |     0.00   0.917    0.00    0.00      0.000  O       |       |       |       |     0.00   1.000    0.00    0.00      0.000  O       |       |       |       |     0.00   1.083    0.00    0.00      0.000  O       |       |       |       |     0.00   1.167    0.00    0.00      0.000  O       |       |       |       |     0.00   1.250    0.00    0.00      0.000  O       |       |       |       |     0.00   1.333    0.00    0.00      0.000  O       |       |       |       |     0.00   1.417    0.09    0.05      0.000  O       |       |       |       |     0.00   1.500    0.57    0.37      0.001  |O      |       |       |       |     0.01   1.583    1.17    0.41      0.004  |O I    |       |       |       |     0.41   1.667    1.51    0.41      0.011  |O  I   |       |       |       |     1.15   1.750    1.77    0.41      0.019  |O   I  |       |       |       |     1.41   1.833    2.10    0.41      0.030  |O    I |       |       |       |     1.73   1.917    2.55    0.41      0.043  |O     I|       |       |       |     2.13   2.000    3.39    0.41      0.060  |O      | I     |       |       |     2.67   2.083    5.52    0.41      0.088  |O      |       |I      |       |     3.32   2.167   10.17    0.41      0.139  |O      |       |       |      I|     4.47   2.250   10.27    0.41      0.207  |O      |       |       |       I     6.20   2.333    5.24    0.41      0.258  |O      |       I       |       |     7.80   2.417    2.62    0.41      0.282  |O      I       |       |       |     8.94   2.500    1.33    2.44      0.286  |   I  O|       |       |       |     9.81   2.583    0.34    0.41      0.282  |O      |       |       |       |     8.92   2.667    0.08    0.41      0.280  IO      |       |       |       |     8.85   2.750    0.02    0.41      0.278  IO      |       |       |       |     8.72   2.833    0.00    0.41      0.275  IO      |       |       |       |     8.58   2.917    0.00    0.41      0.272  IO      |       |       |       |     8.43   3.000    0.00    0.41      0.269  IO      |       |       |       |     8.28   3.083    0.00    0.41      0.267  IO      |       |       |       |     8.13   3.167    0.00    0.41      0.264  IO      |       |       |       |     7.99   3.250    0.00    0.41      0.261  IO      |       |       |       |     7.90   3.333    0.00    0.41      0.258  IO      |       |       |       |     7.81   3.417    0.00    0.41      0.255  IO      |       |       |       |     7.72   3.500    0.00    0.41      0.252  IO      |       |       |       |     7.63   3.583    0.00    0.41      0.250  IO      |       |       |       |     7.54   3.667    0.00    0.41      0.247  IO      |       |       |       |     7.45   3.750    0.00    0.41      0.244  IO      |       |       |       |     7.36   3.833    0.00    0.41      0.241  IO      |       |       |       |     7.27   3.917    0.00    0.41      0.238  IO      |       |       |       |     7.18   4.000    0.00    0.41      0.235  IO      |       |       |       |     7.09   4.083    0.00    0.41      0.233  IO      |       |       |       |     7.00   4.167    0.00    0.41      0.230  IO      |       |       |       |     6.91   4.250    0.00    0.41      0.227  IO      |       |       |       |     6.82   4.333    0.00    0.41      0.224  IO      |       |       |       |     6.73   4.417    0.00    0.41      0.221  IO      |       |       |       |     6.64   4.500    0.00    0.41      0.219  IO      |       |       |       |     6.55   4.583    0.00    0.41      0.216  IO      |       |       |       |     6.46   4.667    0.00    0.41      0.213  IO      |       |       |       |     6.37   4.750    0.00    0.41      0.210  IO      |       |       |       |     6.28   4.833    0.00    0.41      0.207  IO      |       |       |       |     6.20   4.917    0.00    0.41      0.204  IO      |       |       |       |     6.13   5.000    0.00    0.41      0.202  IO      |       |       |       |     6.06   5.083    0.00    0.41      0.199  IO      |       |       |       |     5.99   5.167    0.00    0.41      0.196  IO      |       |       |       |     5.91   5.250    0.00    0.41      0.193  IO      |       |       |       |     5.84   5.333    0.00    0.41      0.190  IO      |       |       |       |     5.77   5.417    0.00    0.41      0.187  IO      |       |       |       |     5.70   5.500    0.00    0.41      0.185  IO      |       |       |       |     5.62   5.583    0.00    0.41      0.182  IO      |       |       |       |     5.55   5.667    0.00    0.41      0.179  IO      |       |       |       |     5.48   5.750    0.00    0.41      0.176  IO      |       |       |       |     5.41   5.833    0.00    0.41      0.173  IO      |       |       |       |     5.33   5.917    0.00    0.41      0.171  IO      |       |       |       |     5.26   6.000    0.00    0.41      0.168  IO      |       |       |       |     5.19   6.083    0.00    0.41      0.165  IO      |       |       |       |     5.11   6.167    0.00    0.41      0.162  IO      |       |       |       |     5.04   6.250    0.00    0.41      0.159  IO      |       |       |       |     4.97   6.333    0.00    0.41      0.156  IO      |       |       |       |     4.90   6.417    0.00    0.41      0.154  IO      |       |       |       |     4.82   6.500    0.00    0.41      0.151  IO      |       |       |       |     4.75   6.583    0.00    0.41      0.148  IO      |       |       |       |     4.68   6.667    0.00    0.41      0.145  IO      |       |       |       |     4.61   6.750    0.00    0.41      0.142  IO      |       |       |       |     4.53   6.833    0.00    0.41      0.139  IO      |       |       |       |     4.47   6.917    0.00    0.41      0.137  IO      |       |       |       |     4.40   7.000    0.00    0.41      0.134  IO      |       |       |       |     4.34   7.083    0.00    0.41      0.131  IO      |       |       |       |     4.28   7.167    0.00    0.41      0.128  IO      |       |       |       |     4.21   7.250    0.00    0.41      0.125  IO      |       |       |       |     4.15   7.333    0.00    0.41      0.123  IO      |       |       |       |     4.09   7.417    0.00    0.41      0.120  IO      |       |       |       |     4.02   7.500    0.00    0.41      0.117  IO      |       |       |       |     3.96   7.583    0.00    0.41      0.114  IO      |       |       |       |     3.90   7.667    0.00    0.41      0.111  IO      |       |       |       |     3.83   7.750    0.00    0.41      0.108  IO      |       |       |       |     3.77   7.833    0.00    0.41      0.106  IO      |       |       |       |     3.71   7.917    0.00    0.41      0.103  IO      |       |       |       |     3.64   8.000    0.00    0.41      0.100  IO      |       |       |       |     3.58   8.083    0.00    0.41      0.097  IO      |       |       |       |     3.52   8.167    0.00    0.41      0.094  IO      |       |       |       |     3.45   8.250    0.00    0.41      0.091  IO      |       |       |       |     3.39   8.333    0.00    0.41      0.089  IO      |       |       |       |     3.33   8.417    0.00    0.41      0.086  IO      |       |       |       |     3.26   8.500    0.00    0.41      0.083  IO      |       |       |       |     3.20   8.583    0.00    0.41      0.080  IO      |       |       |       |     3.14   8.667    0.00    0.41      0.077  IO      |       |       |       |     3.07   8.750    0.00    0.41      0.075  IO      |       |       |       |     3.01   8.833    0.00    0.41      0.072  IO      |       |       |       |     2.95   8.917    0.00    0.41      0.069  IO      |       |       |       |     2.88   9.000    0.00    0.41      0.066  IO      |       |       |       |     2.82   9.083    0.00    0.41      0.063  IO      |       |       |       |     2.76   9.167    0.00    0.41      0.060  IO      |       |       |       |     2.67   9.250    0.00    0.41      0.058  IO      |       |       |       |     2.58   9.333    0.00    0.41      0.055  IO      |       |       |       |     2.50   9.417    0.00    0.41      0.052  IO      |       |       |       |     2.41   9.500    0.00    0.41      0.049  IO      |       |       |       |     2.33   9.583    0.00    0.41      0.046  IO      |       |       |       |     2.24   9.667    0.00    0.41      0.043  IO      |       |       |       |     2.15   9.750    0.00    0.41      0.041  IO      |       |       |       |     2.07   9.833    0.00    0.41      0.038  IO      |       |       |       |     1.98   9.917    0.00    0.41      0.035  IO      |       |       |       |     1.89  10.000    0.00    0.41      0.032  IO      |       |       |       |     1.81  10.083    0.00    0.41      0.029  IO      |       |       |       |     1.72  10.167    0.00    0.41      0.027  IO      |       |       |       |     1.64  10.250    0.00    0.41      0.024  IO      |       |       |       |     1.55  10.333    0.00    0.41      0.021  IO      |       |       |       |     1.46  10.417    0.00    0.41      0.018  IO      |       |       |       |     1.38  10.500    0.00    0.41      0.015  IO      |       |       |       |     1.29  10.583    0.00    0.41      0.012  IO      |       |       |       |     1.20  10.667    0.00    0.41      0.010  IO      |       |       |       |     1.12  10.750    0.00    0.41      0.007  IO      |       |       |       |     0.78  10.833    0.00    0.41      0.004  IO      |       |       |       |     0.38  10.917    0.00    0.41      0.001  IO      |       |       |       |     0.02  11.000    0.00    0.00      0.000  O       |       |       |       |     0.00 ****************************HYDROGRAPH DATA**************************** Number of intervals =   132 Time interval =    5.0 (Min.) Maximum/Peak flow rate =        2.437 (CFS) Total volume =       0.336 (Ac.Ft) Status of hydrographs being held in storage            Stream 1  Stream 2  Stream 3  Stream 4  Stream 5 Peak (CFS)      0.000     0.000     0.000     0.000     0.000 Vol (Ac.Ft)      0.000     0.000     0.000     0.000     0.000 *********************************************************************** ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐                      FLOOD HYDROGRAPH ROUTING PROGRAM             Copyright (c) CIVILCADD/CIVILDESIGN, 1989 ‐ 2005                         Study date: 07/24/24 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ JN 4113 FLOOD ROUTING 25 YEAR 24 HOUR STORM ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Program License Serial Number 5016 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ ********************* HYDROGRAPH INFORMATION ********************** From study/file name: 4113UH25Y24H.rte ****************************HYDROGRAPH DATA**************************** Number of intervals =   293 Time interval =    5.0 (Min.) Maximum/Peak flow rate =       10.272 (CFS) Total volume =       0.336 (Ac.Ft) Status of hydrographs being held in storage            Stream 1  Stream 2  Stream 3  Stream 4  Stream 5 Peak (CFS)      0.000     0.000     0.000     0.000     0.000 Vol (Ac.Ft)      0.000     0.000     0.000     0.000     0.000 *********************************************************************** ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station        1.000 to Point/Station        2.000 **** RETARDING BASIN ROUTING **** ______________________________________________________________________ User entry of depth‐outflow‐storage data ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Total number of inflow hydrograph intervals = 293 Hydrograph time unit =  5.000 (Min.) Initial depth in storage basin =   0.00(Ft.) ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Initial basin depth =   0.00 (Ft.) Initial basin storage =      0.00 (Ac.Ft) Initial basin outflow =   0.00 (CFS) ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Depth vs. Storage and Depth vs. Discharge data:  Basin Depth  Storage    Outflow   (S‐O*dt/2)   (S+O*dt/2)      (Ft.)    (Ac.Ft)    (CFS)     (Ac.Ft)    (Ac.Ft) ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐           0.000      0.000      0.000      0.000        0.000           0.010      0.001      0.410     ‐0.000        0.002           0.100      0.002      0.410      0.001        0.003           1.100      0.009      0.410      0.008        0.010           2.750      0.063      0.410      0.062        0.064           4.500      0.141      0.410      0.140        0.142           6.250      0.209      0.410      0.208        0.210           8.000      0.264      0.410      0.263        0.265           8.100      0.266      0.410      0.265        0.267           9.000      0.283      0.410      0.282        0.284           9.100      0.284      0.460      0.282        0.286           9.500      0.285      1.670      0.279        0.291          10.000      0.286      2.920      0.276        0.296 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Hydrograph Detention Basin Routing ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Graph values: 'I'= unit inflow; 'O'=outflow at time shown ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐   Time   Inflow  Outflow    Storage                                     Depth   (Hours)  (CFS)   (CFS)     (Ac.Ft) .0       2.6    5.14    7.70   10.27 (Ft.)   0.083    0.00    0.00      0.000  O       |       |       |       |     0.00   0.167    0.00    0.00      0.000  O       |       |       |       |     0.00   0.250    0.00    0.00      0.000  O       |       |       |       |     0.00   0.333    0.00    0.00      0.000  O       |       |       |       |     0.00   0.417    0.00    0.00      0.000  O       |       |       |       |     0.00   0.500    0.00    0.00      0.000  O       |       |       |       |     0.00   0.583    0.00    0.00      0.000  O       |       |       |       |     0.00   0.667    0.00    0.00      0.000  O       |       |       |       |     0.00   0.750    0.00    0.00      0.000  O       |       |       |       |     0.00   0.833    0.00    0.00      0.000  O       |       |       |       |     0.00   0.917    0.00    0.00      0.000  O       |       |       |       |     0.00   1.000    0.00    0.00      0.000  O       |       |       |       |     0.00   1.083    0.00    0.00      0.000  O       |       |       |       |     0.00   1.167    0.00    0.00      0.000  O       |       |       |       |     0.00   1.250    0.00    0.00      0.000  O       |       |       |       |     0.00   1.333    0.00    0.00      0.000  O       |       |       |       |     0.00   1.417    0.00    0.00      0.000  O       |       |       |       |     0.00   1.500    0.00    0.00      0.000  O       |       |       |       |     0.00   1.583    0.00    0.00      0.000  O       |       |       |       |     0.00   1.667    0.00    0.00      0.000  O       |       |       |       |     0.00   1.750    0.00    0.00      0.000  O       |       |       |       |     0.00   1.833    0.00    0.00      0.000  O       |       |       |       |     0.00   1.917    0.00    0.00      0.000  O       |       |       |       |     0.00   2.000    0.00    0.00      0.000  O       |       |       |       |     0.00   2.083    0.00    0.00      0.000  O       |       |       |       |     0.00   2.167    0.00    0.00      0.000  O       |       |       |       |     0.00   2.250    0.00    0.00      0.000  O       |       |       |       |     0.00   2.333    0.00    0.00      0.000  O       |       |       |       |     0.00   2.417    0.00    0.00      0.000  O       |       |       |       |     0.00   2.500    0.00    0.00      0.000  O       |       |       |       |     0.00   2.583    0.00    0.00      0.000  O       |       |       |       |     0.00   2.667    0.00    0.00      0.000  O       |       |       |       |     0.00   2.750    0.00    0.00      0.000  O       |       |       |       |     0.00   2.833    0.00    0.00      0.000  O       |       |       |       |     0.00   2.917    0.00    0.00      0.000  O       |       |       |       |     0.00   3.000    0.00    0.00      0.000  O       |       |       |       |     0.00   3.083    0.00    0.00      0.000  O       |       |       |       |     0.00   3.167    0.00    0.00      0.000  O       |       |       |       |     0.00   3.250    0.00    0.00      0.000  O       |       |       |       |     0.00   3.333    0.00    0.00      0.000  O       |       |       |       |     0.00   3.417    0.00    0.00      0.000  O       |       |       |       |     0.00   3.500    0.00    0.00      0.000  O       |       |       |       |     0.00   3.583    0.00    0.00      0.000  O       |       |       |       |     0.00   3.667    0.00    0.00      0.000  O       |       |       |       |     0.00   3.750    0.00    0.00      0.000  O       |       |       |       |     0.00   3.833    0.00    0.00      0.000  O       |       |       |       |     0.00   3.917    0.00    0.00      0.000  O       |       |       |       |     0.00   4.000    0.00    0.00      0.000  O       |       |       |       |     0.00   4.083    0.00    0.00      0.000  O       |       |       |       |     0.00   4.167    0.00    0.00      0.000  O       |       |       |       |     0.00   4.250    0.00    0.00      0.000  O       |       |       |       |     0.00   4.333    0.00    0.00      0.000  O       |       |       |       |     0.00   4.417    0.00    0.00      0.000  O       |       |       |       |     0.00   4.500    0.00    0.00      0.000  O       |       |       |       |     0.00   4.583    0.00    0.00      0.000  O       |       |       |       |     0.00   4.667    0.00    0.00      0.000  O       |       |       |       |     0.00   4.750    0.00    0.00      0.000  O       |       |       |       |     0.00   4.833    0.00    0.00      0.000  O       |       |       |       |     0.00   4.917    0.00    0.00      0.000  O       |       |       |       |     0.00   5.000    0.00    0.00      0.000  O       |       |       |       |     0.00   5.083    0.00    0.00      0.000  O       |       |       |       |     0.00   5.167    0.00    0.00      0.000  O       |       |       |       |     0.00   5.250    0.00    0.00      0.000  O       |       |       |       |     0.00   5.333    0.00    0.00      0.000  O       |       |       |       |     0.00   5.417    0.00    0.00      0.000  O       |       |       |       |     0.00   5.500    0.00    0.00      0.000  O       |       |       |       |     0.00   5.583    0.00    0.00      0.000  O       |       |       |       |     0.00   5.667    0.00    0.00      0.000  O       |       |       |       |     0.00   5.750    0.00    0.00      0.000  O       |       |       |       |     0.00   5.833    0.00    0.00      0.000  O       |       |       |       |     0.00   5.917    0.00    0.00      0.000  O       |       |       |       |     0.00   6.000    0.00    0.00      0.000  O       |       |       |       |     0.00   6.083    0.00    0.00      0.000  O       |       |       |       |     0.00   6.167    0.00    0.00      0.000  O       |       |       |       |     0.00   6.250    0.00    0.00      0.000  O       |       |       |       |     0.00   6.333    0.00    0.00      0.000  O       |       |       |       |     0.00   6.417    0.00    0.00      0.000  O       |       |       |       |     0.00   6.500    0.00    0.00      0.000  O       |       |       |       |     0.00   6.583    0.00    0.00      0.000  O       |       |       |       |     0.00   6.667    0.00    0.00      0.000  O       |       |       |       |     0.00   6.750    0.00    0.00      0.000  O       |       |       |       |     0.00   6.833    0.00    0.00      0.000  O       |       |       |       |     0.00   6.917    0.00    0.00      0.000  O       |       |       |       |     0.00   7.000    0.00    0.00      0.000  O       |       |       |       |     0.00   7.083    0.00    0.00      0.000  O       |       |       |       |     0.00   7.167    0.00    0.00      0.000  O       |       |       |       |     0.00   7.250    0.00    0.00      0.000  O       |       |       |       |     0.00   7.333    0.00    0.00      0.000  O       |       |       |       |     0.00   7.417    0.00    0.00      0.000  O       |       |       |       |     0.00   7.500    0.00    0.00      0.000  O       |       |       |       |     0.00   7.583    0.00    0.00      0.000  O       |       |       |       |     0.00   7.667    0.00    0.00      0.000  O       |       |       |       |     0.00   7.750    0.00    0.00      0.000  O       |       |       |       |     0.00   7.833    0.00    0.00      0.000  O       |       |       |       |     0.00   7.917    0.00    0.00      0.000  O       |       |       |       |     0.00   8.000    0.00    0.00      0.000  O       |       |       |       |     0.00   8.083    0.00    0.00      0.000  O       |       |       |       |     0.00   8.167    0.00    0.00      0.000  O       |       |       |       |     0.00   8.250    0.00    0.00      0.000  O       |       |       |       |     0.00   8.333    0.00    0.00      0.000  O       |       |       |       |     0.00   8.417    0.00    0.00      0.000  O       |       |       |       |     0.00   8.500    0.00    0.00      0.000  O       |       |       |       |     0.00   8.583    0.00    0.00      0.000  O       |       |       |       |     0.00   8.667    0.00    0.00      0.000  O       |       |       |       |     0.00   8.750    0.00    0.00      0.000  O       |       |       |       |     0.00   8.833    0.00    0.00      0.000  O       |       |       |       |     0.00   8.917    0.00    0.00      0.000  O       |       |       |       |     0.00   9.000    0.00    0.00      0.000  O       |       |       |       |     0.00   9.083    0.00    0.00      0.000  O       |       |       |       |     0.00   9.167    0.00    0.00      0.000  O       |       |       |       |     0.00   9.250    0.00    0.00      0.000  O       |       |       |       |     0.00   9.333    0.00    0.00      0.000  O       |       |       |       |     0.00   9.417    0.00    0.00      0.000  O       |       |       |       |     0.00   9.500    0.00    0.00      0.000  O       |       |       |       |     0.00   9.583    0.00    0.00      0.000  O       |       |       |       |     0.00   9.667    0.00    0.00      0.000  O       |       |       |       |     0.00   9.750    0.00    0.00      0.000  O       |       |       |       |     0.00   9.833    0.00    0.00      0.000  O       |       |       |       |     0.00   9.917    0.00    0.00      0.000  O       |       |       |       |     0.00  10.000    0.00    0.00      0.000  O       |       |       |       |     0.00  10.083    0.00    0.00      0.000  O       |       |       |       |     0.00  10.167    0.00    0.00      0.000  O       |       |       |       |     0.00  10.250    0.00    0.00      0.000  O       |       |       |       |     0.00  10.333    0.00    0.00      0.000  O       |       |       |       |     0.00  10.417    0.00    0.00      0.000  O       |       |       |       |     0.00  10.500    0.00    0.00      0.000  O       |       |       |       |     0.00  10.583    0.00    0.00      0.000  O       |       |       |       |     0.00  10.667    0.00    0.00      0.000  O       |       |       |       |     0.00  10.750    0.00    0.00      0.000  O       |       |       |       |     0.00  10.833    0.00    0.00      0.000  O       |       |       |       |     0.00  10.917    0.00    0.00      0.000  O       |       |       |       |     0.00  11.000    0.00    0.00      0.000  O       |       |       |       |     0.00  11.083    0.00    0.00      0.000  O       |       |       |       |     0.00  11.167    0.00    0.00      0.000  O       |       |       |       |     0.00  11.250    0.00    0.00      0.000  O       |       |       |       |     0.00  11.333    0.00    0.00      0.000  O       |       |       |       |     0.00  11.417    0.00    0.00      0.000  O       |       |       |       |     0.00  11.500    0.00    0.00      0.000  O       |       |       |       |     0.00  11.583    0.00    0.00      0.000  O       |       |       |       |     0.00  11.667    0.00    0.00      0.000  O       |       |       |       |     0.00  11.750    0.00    0.00      0.000  O       |       |       |       |     0.00  11.833    0.00    0.00      0.000  O       |       |       |       |     0.00  11.917    0.00    0.00      0.000  O       |       |       |       |     0.00  12.000    0.00    0.00      0.000  O       |       |       |       |     0.00  12.083    0.00    0.00      0.000  O       |       |       |       |     0.00  12.167    0.00    0.00      0.000  O       |       |       |       |     0.00  12.250    0.00    0.00      0.000  O       |       |       |       |     0.00  12.333    0.00    0.00      0.000  O       |       |       |       |     0.00  12.417    0.00    0.00      0.000  O       |       |       |       |     0.00  12.500    0.00    0.00      0.000  O       |       |       |       |     0.00  12.583    0.00    0.00      0.000  O       |       |       |       |     0.00  12.667    0.00    0.00      0.000  O       |       |       |       |     0.00  12.750    0.00    0.00      0.000  O       |       |       |       |     0.00  12.833    0.00    0.00      0.000  O       |       |       |       |     0.00  12.917    0.00    0.00      0.000  O       |       |       |       |     0.00  13.000    0.00    0.00      0.000  O       |       |       |       |     0.00  13.083    0.00    0.00      0.000  O       |       |       |       |     0.00  13.167    0.00    0.00      0.000  O       |       |       |       |     0.00  13.250    0.00    0.00      0.000  O       |       |       |       |     0.00  13.333    0.00    0.00      0.000  O       |       |       |       |     0.00  13.417    0.00    0.00      0.000  O       |       |       |       |     0.00  13.500    0.00    0.00      0.000  O       |       |       |       |     0.00  13.583    0.00    0.00      0.000  O       |       |       |       |     0.00  13.667    0.00    0.00      0.000  O       |       |       |       |     0.00  13.750    0.00    0.00      0.000  O       |       |       |       |     0.00  13.833    0.00    0.00      0.000  O       |       |       |       |     0.00  13.917    0.00    0.00      0.000  O       |       |       |       |     0.00  14.000    0.00    0.00      0.000  O       |       |       |       |     0.00  14.083    0.00    0.00      0.000  O       |       |       |       |     0.00  14.167    0.00    0.00      0.000  O       |       |       |       |     0.00  14.250    0.00    0.00      0.000  O       |       |       |       |     0.00  14.333    0.00    0.00      0.000  O       |       |       |       |     0.00  14.417    0.00    0.00      0.000  O       |       |       |       |     0.00  14.500    0.00    0.00      0.000  O       |       |       |       |     0.00  14.583    0.00    0.00      0.000  O       |       |       |       |     0.00  14.667    0.00    0.00      0.000  O       |       |       |       |     0.00  14.750    0.00    0.00      0.000  O       |       |       |       |     0.00  14.833    0.00    0.00      0.000  O       |       |       |       |     0.00  14.917    0.00    0.00      0.000  O       |       |       |       |     0.00  15.000    0.00    0.00      0.000  O       |       |       |       |     0.00  15.083    0.00    0.00      0.000  O       |       |       |       |     0.00  15.167    0.00    0.00      0.000  O       |       |       |       |     0.00  15.250    0.00    0.00      0.000  O       |       |       |       |     0.00  15.333    0.00    0.00      0.000  O       |       |       |       |     0.00  15.417    0.09    0.05      0.000  O       |       |       |       |     0.00  15.500    0.57    0.37      0.001  |O      |       |       |       |     0.01  15.583    1.17    0.41      0.004  |O I    |       |       |       |     0.41  15.667    1.51    0.41      0.011  |O  I   |       |       |       |     1.15  15.750    1.77    0.41      0.019  |O   I  |       |       |       |     1.41  15.833    2.10    0.41      0.030  |O    I |       |       |       |     1.73  15.917    2.55    0.41      0.043  |O     I|       |       |       |     2.13  16.000    3.39    0.41      0.060  |O      | I     |       |       |     2.67  16.083    5.52    0.41      0.088  |O      |       |I      |       |     3.32  16.167   10.17    0.41      0.139  |O      |       |       |      I|     4.47  16.250   10.27    0.41      0.207  |O      |       |       |       I     6.20  16.333    5.24    0.41      0.258  |O      |       I       |       |     7.80  16.417    2.62    0.41      0.282  |O      I       |       |       |     8.94  16.500    1.33    2.44      0.286  |   I  O|       |       |       |     9.81  16.583    0.34    0.41      0.282  |O      |       |       |       |     8.92  16.667    0.08    0.41      0.280  IO      |       |       |       |     8.85  16.750    0.02    0.41      0.278  IO      |       |       |       |     8.72  16.833    0.00    0.41      0.275  IO      |       |       |       |     8.58  16.917    0.00    0.41      0.272  IO      |       |       |       |     8.43  17.000    0.00    0.41      0.269  IO      |       |       |       |     8.28  17.083    0.00    0.41      0.267  IO      |       |       |       |     8.13  17.167    0.00    0.41      0.264  IO      |       |       |       |     7.99  17.250    0.00    0.41      0.261  IO      |       |       |       |     7.90  17.333    0.00    0.41      0.258  IO      |       |       |       |     7.81  17.417    0.00    0.41      0.255  IO      |       |       |       |     7.72  17.500    0.00    0.41      0.252  IO      |       |       |       |     7.63  17.583    0.00    0.41      0.250  IO      |       |       |       |     7.54  17.667    0.00    0.41      0.247  IO      |       |       |       |     7.45  17.750    0.00    0.41      0.244  IO      |       |       |       |     7.36  17.833    0.00    0.41      0.241  IO      |       |       |       |     7.27  17.917    0.00    0.41      0.238  IO      |       |       |       |     7.18  18.000    0.00    0.41      0.236  IO      |       |       |       |     7.09  18.083    0.00    0.41      0.233  IO      |       |       |       |     7.00  18.167    0.00    0.41      0.230  IO      |       |       |       |     6.92  18.250    0.00    0.41      0.227  IO      |       |       |       |     6.83  18.333    0.00    0.41      0.224  IO      |       |       |       |     6.74  18.417    0.00    0.41      0.221  IO      |       |       |       |     6.65  18.500    0.00    0.41      0.219  IO      |       |       |       |     6.56  18.583    0.00    0.41      0.216  IO      |       |       |       |     6.47  18.667    0.00    0.41      0.213  IO      |       |       |       |     6.38  18.750    0.00    0.41      0.210  IO      |       |       |       |     6.29  18.833    0.00    0.41      0.207  IO      |       |       |       |     6.21  18.917    0.00    0.41      0.205  IO      |       |       |       |     6.13  19.000    0.00    0.41      0.202  IO      |       |       |       |     6.06  19.083    0.00    0.41      0.199  IO      |       |       |       |     5.99  19.167    0.00    0.41      0.196  IO      |       |       |       |     5.92  19.250    0.00    0.41      0.193  IO      |       |       |       |     5.84  19.333    0.00    0.41      0.190  IO      |       |       |       |     5.77  19.417    0.00    0.41      0.188  IO      |       |       |       |     5.70  19.500    0.00    0.41      0.185  IO      |       |       |       |     5.63  19.583    0.00    0.41      0.182  IO      |       |       |       |     5.55  19.667    0.00    0.41      0.179  IO      |       |       |       |     5.48  19.750    0.00    0.41      0.176  IO      |       |       |       |     5.41  19.833    0.00    0.41      0.173  IO      |       |       |       |     5.34  19.917    0.00    0.41      0.171  IO      |       |       |       |     5.26  20.000    0.00    0.41      0.168  IO      |       |       |       |     5.19  20.083    0.00    0.41      0.165  IO      |       |       |       |     5.12  20.167    0.00    0.41      0.162  IO      |       |       |       |     5.05  20.250    0.00    0.41      0.159  IO      |       |       |       |     4.97  20.333    0.00    0.41      0.157  IO      |       |       |       |     4.90  20.417    0.00    0.41      0.154  IO      |       |       |       |     4.83  20.500    0.00    0.41      0.151  IO      |       |       |       |     4.75  20.583    0.00    0.41      0.148  IO      |       |       |       |     4.68  20.667    0.00    0.41      0.145  IO      |       |       |       |     4.61  20.750    0.00    0.41      0.142  IO      |       |       |       |     4.54  20.833    0.00    0.41      0.140  IO      |       |       |       |     4.47  20.917    0.00    0.41      0.137  IO      |       |       |       |     4.41  21.000    0.00    0.41      0.134  IO      |       |       |       |     4.34  21.083    0.00    0.41      0.131  IO      |       |       |       |     4.28  21.167    0.00    0.41      0.128  IO      |       |       |       |     4.22  21.250    0.00    0.41      0.125  IO      |       |       |       |     4.15  21.333    0.00    0.41      0.123  IO      |       |       |       |     4.09  21.417    0.00    0.41      0.120  IO      |       |       |       |     4.03  21.500    0.00    0.41      0.117  IO      |       |       |       |     3.96  21.583    0.00    0.41      0.114  IO      |       |       |       |     3.90  21.667    0.00    0.41      0.111  IO      |       |       |       |     3.84  21.750    0.00    0.41      0.109  IO      |       |       |       |     3.77  21.833    0.00    0.41      0.106  IO      |       |       |       |     3.71  21.917    0.00    0.41      0.103  IO      |       |       |       |     3.65  22.000    0.00    0.41      0.100  IO      |       |       |       |     3.58  22.083    0.00    0.41      0.097  IO      |       |       |       |     3.52  22.167    0.00    0.41      0.094  IO      |       |       |       |     3.46  22.250    0.00    0.41      0.092  IO      |       |       |       |     3.39  22.333    0.00    0.41      0.089  IO      |       |       |       |     3.33  22.417    0.00    0.41      0.086  IO      |       |       |       |     3.27  22.500    0.00    0.41      0.083  IO      |       |       |       |     3.20  22.583    0.00    0.41      0.080  IO      |       |       |       |     3.14  22.667    0.00    0.41      0.077  IO      |       |       |       |     3.08  22.750    0.00    0.41      0.075  IO      |       |       |       |     3.01  22.833    0.00    0.41      0.072  IO      |       |       |       |     2.95  22.917    0.00    0.41      0.069  IO      |       |       |       |     2.89  23.000    0.00    0.41      0.066  IO      |       |       |       |     2.82  23.083    0.00    0.41      0.063  IO      |       |       |       |     2.76  23.167    0.00    0.41      0.061  IO      |       |       |       |     2.68  23.250    0.00    0.41      0.058  IO      |       |       |       |     2.59  23.333    0.00    0.41      0.055  IO      |       |       |       |     2.50  23.417    0.00    0.41      0.052  IO      |       |       |       |     2.42  23.500    0.00    0.41      0.049  IO      |       |       |       |     2.33  23.583    0.00    0.41      0.046  IO      |       |       |       |     2.24  23.667    0.00    0.41      0.044  IO      |       |       |       |     2.16  23.750    0.00    0.41      0.041  IO      |       |       |       |     2.07  23.833    0.00    0.41      0.038  IO      |       |       |       |     1.99  23.917    0.00    0.41      0.035  IO      |       |       |       |     1.90  24.000    0.00    0.41      0.032  IO      |       |       |       |     1.81  24.083    0.00    0.41      0.030  IO      |       |       |       |     1.73  24.167    0.00    0.41      0.027  IO      |       |       |       |     1.64  24.250    0.00    0.41      0.024  IO      |       |       |       |     1.55  24.333    0.00    0.41      0.021  IO      |       |       |       |     1.47  24.417    0.00    0.41      0.018  IO      |       |       |       |     1.38  24.500    0.00    0.41      0.015  IO      |       |       |       |     1.30  24.583    0.00    0.41      0.013  IO      |       |       |       |     1.21  24.667    0.00    0.41      0.010  IO      |       |       |       |     1.12  24.750    0.00    0.41      0.007  IO      |       |       |       |     0.80  24.833    0.00    0.41      0.004  IO      |       |       |       |     0.40  24.917    0.00    0.41      0.001  IO      |       |       |       |     0.03  25.000    0.00    0.00      0.000  O       |       |       |       |     0.00 ****************************HYDROGRAPH DATA**************************** Number of intervals =   300 Time interval =    5.0 (Min.) Maximum/Peak flow rate =        2.437 (CFS) Total volume =       0.336 (Ac.Ft) Status of hydrographs being held in storage            Stream 1  Stream 2  Stream 3  Stream 4  Stream 5 Peak (CFS)      0.000     0.000     0.000     0.000     0.000 Vol (Ac.Ft)      0.000     0.000     0.000     0.000     0.000 *********************************************************************** ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐                      FLOOD HYDROGRAPH ROUTING PROGRAM             Copyright (c) CIVILCADD/CIVILDESIGN, 1989 ‐ 2005                         Study date: 07/01/24 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ JN 4113 FLOOD ROUTING 100 YEAR 3 HOUR STORM ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Program License Serial Number 5016 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ ********************* HYDROGRAPH INFORMATION ********************** From study/file name: 4113UH100Y3H.rte ****************************HYDROGRAPH DATA**************************** Number of intervals =    41 Time interval =    5.0 (Min.) Maximum/Peak flow rate =       13.573 (CFS) Total volume =       0.457 (Ac.Ft) Status of hydrographs being held in storage            Stream 1  Stream 2  Stream 3  Stream 4  Stream 5 Peak (CFS)      0.000     0.000     0.000     0.000     0.000 Vol (Ac.Ft)      0.000     0.000     0.000     0.000     0.000 *********************************************************************** ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station        1.000 to Point/Station        2.000 **** RETARDING BASIN ROUTING **** ______________________________________________________________________ User entry of depth‐outflow‐storage data ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Total number of inflow hydrograph intervals = 41 Hydrograph time unit =  5.000 (Min.) Initial depth in storage basin =   0.00(Ft.) ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Initial basin depth =   0.00 (Ft.) Initial basin storage =      0.00 (Ac.Ft) Initial basin outflow =   0.00 (CFS) ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Depth vs. Storage and Depth vs. Discharge data:  Basin Depth  Storage    Outflow   (S‐O*dt/2)   (S+O*dt/2)      (Ft.)    (Ac.Ft)    (CFS)     (Ac.Ft)    (Ac.Ft) ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐           0.000      0.000      0.000      0.000        0.000           0.010      0.001      0.410     ‐0.000        0.002           0.100      0.002      0.410      0.001        0.003           1.100      0.009      0.410      0.008        0.010           2.750      0.063      0.410      0.062        0.064           4.500      0.141      0.410      0.140        0.142           6.250      0.209      0.410      0.208        0.210           8.000      0.264      0.410      0.263        0.265           8.100      0.266      0.410      0.265        0.267           9.000      0.283      0.410      0.282        0.284           9.100      0.284      0.460      0.282        0.286           9.500      0.285      1.670      0.279        0.291          10.000      0.286      2.920      0.276        0.296 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Hydrograph Detention Basin Routing ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Graph values: 'I'= unit inflow; 'O'=outflow at time shown ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐   Time   Inflow  Outflow    Storage                                     Depth   (Hours)  (CFS)   (CFS)     (Ac.Ft) .0       3.4    6.79   10.18   13.57 (Ft.)   0.083    0.00    0.00      0.000  O       |       |       |       |     0.00   0.167    0.00    0.00      0.000  O       |       |       |       |     0.00   0.250    0.00    0.00      0.000  O       |       |       |       |     0.00   0.333    0.00    0.00      0.000  O       |       |       |       |     0.00   0.417    0.00    0.00      0.000  O       |       |       |       |     0.00   0.500    0.00    0.00      0.000  O       |       |       |       |     0.00   0.583    0.00    0.00      0.000  O       |       |       |       |     0.00   0.667    0.00    0.00      0.000  O       |       |       |       |     0.00   0.750    0.00    0.00      0.000  O       |       |       |       |     0.00   0.833    0.00    0.00      0.000  O       |       |       |       |     0.00   0.917    0.00    0.00      0.000  O       |       |       |       |     0.00   1.000    0.00    0.00      0.000  O       |       |       |       |     0.00   1.083    0.00    0.00      0.000  O       |       |       |       |     0.00   1.167    0.00    0.00      0.000  O       |       |       |       |     0.00   1.250    0.00    0.00      0.000  O       |       |       |       |     0.00   1.333    0.00    0.00      0.000  O       |       |       |       |     0.00   1.417    0.13    0.08      0.000  O       |       |       |       |     0.00   1.500    0.84    0.41      0.002  OI      |       |       |       |     0.09   1.583    1.73    0.41      0.008  O   I   |       |       |       |     0.94   1.667    2.20    0.41      0.019  O    I  |       |       |       |     1.39   1.750    2.55    0.41      0.032  O     I |       |       |       |     1.81   1.833    2.98    0.41      0.048  O      I|       |       |       |     2.30   1.917    3.57    0.41      0.068  O       I       |       |       |     2.86   2.000    4.66    0.41      0.094  O       | I     |       |       |     3.44   2.083    7.44    0.41      0.132  O       |       |I      |       |     4.31   2.167   13.50    0.41      0.202  O       |       |       |      I|     6.06   2.250   13.57    2.34      0.286  |    O  |       |       |       I     9.77   2.333    7.02   11.25      0.296  |       |       I       |       O    14.93   2.417    3.62    0.41      0.279  O       I       |       |       |     8.76   2.500    1.86    2.91      0.286  |   I O |       |       |       |     9.99   2.583    0.49    0.41      0.283  OI      |       |       |       |     8.98   2.667    0.12    0.41      0.282  O       |       |       |       |     8.94   2.750    0.03    0.41      0.280  O       |       |       |       |     8.82   2.833    0.00    0.41      0.277  O       |       |       |       |     8.68   2.917    0.00    0.41      0.274  O       |       |       |       |     8.53   3.000    0.00    0.41      0.271  O       |       |       |       |     8.38   3.083    0.00    0.41      0.268  O       |       |       |       |     8.23   3.167    0.00    0.41      0.266  O       |       |       |       |     8.08   3.250    0.00    0.41      0.263  O       |       |       |       |     7.96   3.333    0.00    0.41      0.260  O       |       |       |       |     7.87   3.417    0.00    0.41      0.257  O       |       |       |       |     7.78   3.500    0.00    0.41      0.254  O       |       |       |       |     7.69   3.583    0.00    0.41      0.251  O       |       |       |       |     7.60   3.667    0.00    0.41      0.249  O       |       |       |       |     7.51   3.750    0.00    0.41      0.246  O       |       |       |       |     7.42   3.833    0.00    0.41      0.243  O       |       |       |       |     7.33   3.917    0.00    0.41      0.240  O       |       |       |       |     7.24   4.000    0.00    0.41      0.237  O       |       |       |       |     7.15   4.083    0.00    0.41      0.235  O       |       |       |       |     7.06   4.167    0.00    0.41      0.232  O       |       |       |       |     6.97   4.250    0.00    0.41      0.229  O       |       |       |       |     6.88   4.333    0.00    0.41      0.226  O       |       |       |       |     6.79   4.417    0.00    0.41      0.223  O       |       |       |       |     6.70   4.500    0.00    0.41      0.220  O       |       |       |       |     6.61   4.583    0.00    0.41      0.218  O       |       |       |       |     6.52   4.667    0.00    0.41      0.215  O       |       |       |       |     6.43   4.750    0.00    0.41      0.212  O       |       |       |       |     6.34   4.833    0.00    0.41      0.209  O       |       |       |       |     6.25   4.917    0.00    0.41      0.206  O       |       |       |       |     6.18   5.000    0.00    0.41      0.203  O       |       |       |       |     6.11   5.083    0.00    0.41      0.201  O       |       |       |       |     6.04   5.167    0.00    0.41      0.198  O       |       |       |       |     5.96   5.250    0.00    0.41      0.195  O       |       |       |       |     5.89   5.333    0.00    0.41      0.192  O       |       |       |       |     5.82   5.417    0.00    0.41      0.189  O       |       |       |       |     5.74   5.500    0.00    0.41      0.187  O       |       |       |       |     5.67   5.583    0.00    0.41      0.184  O       |       |       |       |     5.60   5.667    0.00    0.41      0.181  O       |       |       |       |     5.53   5.750    0.00    0.41      0.178  O       |       |       |       |     5.45   5.833    0.00    0.41      0.175  O       |       |       |       |     5.38   5.917    0.00    0.41      0.172  O       |       |       |       |     5.31   6.000    0.00    0.41      0.170  O       |       |       |       |     5.24   6.083    0.00    0.41      0.167  O       |       |       |       |     5.16   6.167    0.00    0.41      0.164  O       |       |       |       |     5.09   6.250    0.00    0.41      0.161  O       |       |       |       |     5.02   6.333    0.00    0.41      0.158  O       |       |       |       |     4.95   6.417    0.00    0.41      0.155  O       |       |       |       |     4.87   6.500    0.00    0.41      0.153  O       |       |       |       |     4.80   6.583    0.00    0.41      0.150  O       |       |       |       |     4.73   6.667    0.00    0.41      0.147  O       |       |       |       |     4.65   6.750    0.00    0.41      0.144  O       |       |       |       |     4.58   6.833    0.00    0.41      0.141  O       |       |       |       |     4.51   6.917    0.00    0.41      0.139  O       |       |       |       |     4.44   7.000    0.00    0.41      0.136  O       |       |       |       |     4.38   7.083    0.00    0.41      0.133  O       |       |       |       |     4.32   7.167    0.00    0.41      0.130  O       |       |       |       |     4.25   7.250    0.00    0.41      0.127  O       |       |       |       |     4.19   7.333    0.00    0.41      0.124  O       |       |       |       |     4.13   7.417    0.00    0.41      0.122  O       |       |       |       |     4.06   7.500    0.00    0.41      0.119  O       |       |       |       |     4.00   7.583    0.00    0.41      0.116  O       |       |       |       |     3.94   7.667    0.00    0.41      0.113  O       |       |       |       |     3.87   7.750    0.00    0.41      0.110  O       |       |       |       |     3.81   7.833    0.00    0.41      0.107  O       |       |       |       |     3.75   7.917    0.00    0.41      0.105  O       |       |       |       |     3.68   8.000    0.00    0.41      0.102  O       |       |       |       |     3.62   8.083    0.00    0.41      0.099  O       |       |       |       |     3.56   8.167    0.00    0.41      0.096  O       |       |       |       |     3.49   8.250    0.00    0.41      0.093  O       |       |       |       |     3.43   8.333    0.00    0.41      0.091  O       |       |       |       |     3.37   8.417    0.00    0.41      0.088  O       |       |       |       |     3.30   8.500    0.00    0.41      0.085  O       |       |       |       |     3.24   8.583    0.00    0.41      0.082  O       |       |       |       |     3.18   8.667    0.00    0.41      0.079  O       |       |       |       |     3.11   8.750    0.00    0.41      0.076  O       |       |       |       |     3.05   8.833    0.00    0.41      0.074  O       |       |       |       |     2.99   8.917    0.00    0.41      0.071  O       |       |       |       |     2.92   9.000    0.00    0.41      0.068  O       |       |       |       |     2.86   9.083    0.00    0.41      0.065  O       |       |       |       |     2.80   9.167    0.00    0.41      0.062  O       |       |       |       |     2.73   9.250    0.00    0.41      0.059  O       |       |       |       |     2.64   9.333    0.00    0.41      0.057  O       |       |       |       |     2.56   9.417    0.00    0.41      0.054  O       |       |       |       |     2.47   9.500    0.00    0.41      0.051  O       |       |       |       |     2.38   9.583    0.00    0.41      0.048  O       |       |       |       |     2.30   9.667    0.00    0.41      0.045  O       |       |       |       |     2.21   9.750    0.00    0.41      0.043  O       |       |       |       |     2.12   9.833    0.00    0.41      0.040  O       |       |       |       |     2.04   9.917    0.00    0.41      0.037  O       |       |       |       |     1.95  10.000    0.00    0.41      0.034  O       |       |       |       |     1.87  10.083    0.00    0.41      0.031  O       |       |       |       |     1.78  10.167    0.00    0.41      0.028  O       |       |       |       |     1.69  10.250    0.00    0.41      0.026  O       |       |       |       |     1.61  10.333    0.00    0.41      0.023  O       |       |       |       |     1.52  10.417    0.00    0.41      0.020  O       |       |       |       |     1.43  10.500    0.00    0.41      0.017  O       |       |       |       |     1.35  10.583    0.00    0.41      0.014  O       |       |       |       |     1.26  10.667    0.00    0.41      0.011  O       |       |       |       |     1.18  10.750    0.00    0.41      0.009  O       |       |       |       |     1.05  10.833    0.00    0.41      0.006  O       |       |       |       |     0.65  10.917    0.00    0.41      0.003  O       |       |       |       |     0.24  11.000    0.00    0.27      0.001  O       |       |       |       |     0.01  11.083    0.00    0.00      0.000  O       |       |       |       |     0.00 ****************************HYDROGRAPH DATA**************************** Number of intervals =   133 Time interval =    5.0 (Min.) Maximum/Peak flow rate =       11.254 (CFS) Total volume =       0.457 (Ac.Ft) Status of hydrographs being held in storage            Stream 1  Stream 2  Stream 3  Stream 4  Stream 5 Peak (CFS)      0.000     0.000     0.000     0.000     0.000 Vol (Ac.Ft)      0.000     0.000     0.000     0.000     0.000 *********************************************************************** ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐                      FLOOD HYDROGRAPH ROUTING PROGRAM             Copyright (c) CIVILCADD/CIVILDESIGN, 1989 ‐ 2005                         Study date: 07/01/24 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ JN 4113 FLOOD ROUTING 100 YEAR 24 HOUR STORM ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Program License Serial Number 5016 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ ********************* HYDROGRAPH INFORMATION ********************** From study/file name: 4113UH100Y24H.rte ****************************HYDROGRAPH DATA**************************** Number of intervals =   293 Time interval =    5.0 (Min.) Maximum/Peak flow rate =       13.573 (CFS) Total volume =       0.457 (Ac.Ft) Status of hydrographs being held in storage            Stream 1  Stream 2  Stream 3  Stream 4  Stream 5 Peak (CFS)      0.000     0.000     0.000     0.000     0.000 Vol (Ac.Ft)      0.000     0.000     0.000     0.000     0.000 *********************************************************************** ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station        1.000 to Point/Station        2.000 **** RETARDING BASIN ROUTING **** ______________________________________________________________________ User entry of depth‐outflow‐storage data ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Total number of inflow hydrograph intervals = 293 Hydrograph time unit =  5.000 (Min.) Initial depth in storage basin =   0.00(Ft.) ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Initial basin depth =   0.00 (Ft.) Initial basin storage =      0.00 (Ac.Ft) Initial basin outflow =   0.00 (CFS) ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Depth vs. Storage and Depth vs. Discharge data:  Basin Depth  Storage    Outflow   (S‐O*dt/2)   (S+O*dt/2)      (Ft.)    (Ac.Ft)    (CFS)     (Ac.Ft)    (Ac.Ft) ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐           0.000      0.000      0.000      0.000        0.000           0.010      0.001      0.410     ‐0.000        0.002           0.100      0.002      0.410      0.001        0.003           1.100      0.009      0.410      0.008        0.010           2.750      0.063      0.410      0.062        0.064           4.500      0.141      0.410      0.140        0.142           6.250      0.209      0.410      0.208        0.210           8.000      0.264      0.410      0.263        0.265           8.100      0.266      0.410      0.265        0.267           9.000      0.283      0.410      0.282        0.284           9.100      0.284      0.460      0.282        0.286           9.500      0.285      1.670      0.279        0.291          10.000      0.286      2.920      0.276        0.296 ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Hydrograph Detention Basin Routing ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Graph values: 'I'= unit inflow; 'O'=outflow at time shown ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐   Time   Inflow  Outflow    Storage                                     Depth   (Hours)  (CFS)   (CFS)     (Ac.Ft) .0       3.4    6.79   10.18   13.57 (Ft.)   0.083    0.00    0.00      0.000  O       |       |       |       |     0.00   0.167    0.00    0.00      0.000  O       |       |       |       |     0.00   0.250    0.00    0.00      0.000  O       |       |       |       |     0.00   0.333    0.00    0.00      0.000  O       |       |       |       |     0.00   0.417    0.00    0.00      0.000  O       |       |       |       |     0.00   0.500    0.00    0.00      0.000  O       |       |       |       |     0.00   0.583    0.00    0.00      0.000  O       |       |       |       |     0.00   0.667    0.00    0.00      0.000  O       |       |       |       |     0.00   0.750    0.00    0.00      0.000  O       |       |       |       |     0.00   0.833    0.00    0.00      0.000  O       |       |       |       |     0.00   0.917    0.00    0.00      0.000  O       |       |       |       |     0.00   1.000    0.00    0.00      0.000  O       |       |       |       |     0.00   1.083    0.00    0.00      0.000  O       |       |       |       |     0.00   1.167    0.00    0.00      0.000  O       |       |       |       |     0.00   1.250    0.00    0.00      0.000  O       |       |       |       |     0.00   1.333    0.00    0.00      0.000  O       |       |       |       |     0.00   1.417    0.00    0.00      0.000  O       |       |       |       |     0.00   1.500    0.00    0.00      0.000  O       |       |       |       |     0.00   1.583    0.00    0.00      0.000  O       |       |       |       |     0.00   1.667    0.00    0.00      0.000  O       |       |       |       |     0.00   1.750    0.00    0.00      0.000  O       |       |       |       |     0.00   1.833    0.00    0.00      0.000  O       |       |       |       |     0.00   1.917    0.00    0.00      0.000  O       |       |       |       |     0.00   2.000    0.00    0.00      0.000  O       |       |       |       |     0.00   2.083    0.00    0.00      0.000  O       |       |       |       |     0.00   2.167    0.00    0.00      0.000  O       |       |       |       |     0.00   2.250    0.00    0.00      0.000  O       |       |       |       |     0.00   2.333    0.00    0.00      0.000  O       |       |       |       |     0.00   2.417    0.00    0.00      0.000  O       |       |       |       |     0.00   2.500    0.00    0.00      0.000  O       |       |       |       |     0.00   2.583    0.00    0.00      0.000  O       |       |       |       |     0.00   2.667    0.00    0.00      0.000  O       |       |       |       |     0.00   2.750    0.00    0.00      0.000  O       |       |       |       |     0.00   2.833    0.00    0.00      0.000  O       |       |       |       |     0.00   2.917    0.00    0.00      0.000  O       |       |       |       |     0.00   3.000    0.00    0.00      0.000  O       |       |       |       |     0.00   3.083    0.00    0.00      0.000  O       |       |       |       |     0.00   3.167    0.00    0.00      0.000  O       |       |       |       |     0.00   3.250    0.00    0.00      0.000  O       |       |       |       |     0.00   3.333    0.00    0.00      0.000  O       |       |       |       |     0.00   3.417    0.00    0.00      0.000  O       |       |       |       |     0.00   3.500    0.00    0.00      0.000  O       |       |       |       |     0.00   3.583    0.00    0.00      0.000  O       |       |       |       |     0.00   3.667    0.00    0.00      0.000  O       |       |       |       |     0.00   3.750    0.00    0.00      0.000  O       |       |       |       |     0.00   3.833    0.00    0.00      0.000  O       |       |       |       |     0.00   3.917    0.00    0.00      0.000  O       |       |       |       |     0.00   4.000    0.00    0.00      0.000  O       |       |       |       |     0.00   4.083    0.00    0.00      0.000  O       |       |       |       |     0.00   4.167    0.00    0.00      0.000  O       |       |       |       |     0.00   4.250    0.00    0.00      0.000  O       |       |       |       |     0.00   4.333    0.00    0.00      0.000  O       |       |       |       |     0.00   4.417    0.00    0.00      0.000  O       |       |       |       |     0.00   4.500    0.00    0.00      0.000  O       |       |       |       |     0.00   4.583    0.00    0.00      0.000  O       |       |       |       |     0.00   4.667    0.00    0.00      0.000  O       |       |       |       |     0.00   4.750    0.00    0.00      0.000  O       |       |       |       |     0.00   4.833    0.00    0.00      0.000  O       |       |       |       |     0.00   4.917    0.00    0.00      0.000  O       |       |       |       |     0.00   5.000    0.00    0.00      0.000  O       |       |       |       |     0.00   5.083    0.00    0.00      0.000  O       |       |       |       |     0.00   5.167    0.00    0.00      0.000  O       |       |       |       |     0.00   5.250    0.00    0.00      0.000  O       |       |       |       |     0.00   5.333    0.00    0.00      0.000  O       |       |       |       |     0.00   5.417    0.00    0.00      0.000  O       |       |       |       |     0.00   5.500    0.00    0.00      0.000  O       |       |       |       |     0.00   5.583    0.00    0.00      0.000  O       |       |       |       |     0.00   5.667    0.00    0.00      0.000  O       |       |       |       |     0.00   5.750    0.00    0.00      0.000  O       |       |       |       |     0.00   5.833    0.00    0.00      0.000  O       |       |       |       |     0.00   5.917    0.00    0.00      0.000  O       |       |       |       |     0.00   6.000    0.00    0.00      0.000  O       |       |       |       |     0.00   6.083    0.00    0.00      0.000  O       |       |       |       |     0.00   6.167    0.00    0.00      0.000  O       |       |       |       |     0.00   6.250    0.00    0.00      0.000  O       |       |       |       |     0.00   6.333    0.00    0.00      0.000  O       |       |       |       |     0.00   6.417    0.00    0.00      0.000  O       |       |       |       |     0.00   6.500    0.00    0.00      0.000  O       |       |       |       |     0.00   6.583    0.00    0.00      0.000  O       |       |       |       |     0.00   6.667    0.00    0.00      0.000  O       |       |       |       |     0.00   6.750    0.00    0.00      0.000  O       |       |       |       |     0.00   6.833    0.00    0.00      0.000  O       |       |       |       |     0.00   6.917    0.00    0.00      0.000  O       |       |       |       |     0.00   7.000    0.00    0.00      0.000  O       |       |       |       |     0.00   7.083    0.00    0.00      0.000  O       |       |       |       |     0.00   7.167    0.00    0.00      0.000  O       |       |       |       |     0.00   7.250    0.00    0.00      0.000  O       |       |       |       |     0.00   7.333    0.00    0.00      0.000  O       |       |       |       |     0.00   7.417    0.00    0.00      0.000  O       |       |       |       |     0.00   7.500    0.00    0.00      0.000  O       |       |       |       |     0.00   7.583    0.00    0.00      0.000  O       |       |       |       |     0.00   7.667    0.00    0.00      0.000  O       |       |       |       |     0.00   7.750    0.00    0.00      0.000  O       |       |       |       |     0.00   7.833    0.00    0.00      0.000  O       |       |       |       |     0.00   7.917    0.00    0.00      0.000  O       |       |       |       |     0.00   8.000    0.00    0.00      0.000  O       |       |       |       |     0.00   8.083    0.00    0.00      0.000  O       |       |       |       |     0.00   8.167    0.00    0.00      0.000  O       |       |       |       |     0.00   8.250    0.00    0.00      0.000  O       |       |       |       |     0.00   8.333    0.00    0.00      0.000  O       |       |       |       |     0.00   8.417    0.00    0.00      0.000  O       |       |       |       |     0.00   8.500    0.00    0.00      0.000  O       |       |       |       |     0.00   8.583    0.00    0.00      0.000  O       |       |       |       |     0.00   8.667    0.00    0.00      0.000  O       |       |       |       |     0.00   8.750    0.00    0.00      0.000  O       |       |       |       |     0.00   8.833    0.00    0.00      0.000  O       |       |       |       |     0.00   8.917    0.00    0.00      0.000  O       |       |       |       |     0.00   9.000    0.00    0.00      0.000  O       |       |       |       |     0.00   9.083    0.00    0.00      0.000  O       |       |       |       |     0.00   9.167    0.00    0.00      0.000  O       |       |       |       |     0.00   9.250    0.00    0.00      0.000  O       |       |       |       |     0.00   9.333    0.00    0.00      0.000  O       |       |       |       |     0.00   9.417    0.00    0.00      0.000  O       |       |       |       |     0.00   9.500    0.00    0.00      0.000  O       |       |       |       |     0.00   9.583    0.00    0.00      0.000  O       |       |       |       |     0.00   9.667    0.00    0.00      0.000  O       |       |       |       |     0.00   9.750    0.00    0.00      0.000  O       |       |       |       |     0.00   9.833    0.00    0.00      0.000  O       |       |       |       |     0.00   9.917    0.00    0.00      0.000  O       |       |       |       |     0.00  10.000    0.00    0.00      0.000  O       |       |       |       |     0.00  10.083    0.00    0.00      0.000  O       |       |       |       |     0.00  10.167    0.00    0.00      0.000  O       |       |       |       |     0.00  10.250    0.00    0.00      0.000  O       |       |       |       |     0.00  10.333    0.00    0.00      0.000  O       |       |       |       |     0.00  10.417    0.00    0.00      0.000  O       |       |       |       |     0.00  10.500    0.00    0.00      0.000  O       |       |       |       |     0.00  10.583    0.00    0.00      0.000  O       |       |       |       |     0.00  10.667    0.00    0.00      0.000  O       |       |       |       |     0.00  10.750    0.00    0.00      0.000  O       |       |       |       |     0.00  10.833    0.00    0.00      0.000  O       |       |       |       |     0.00  10.917    0.00    0.00      0.000  O       |       |       |       |     0.00  11.000    0.00    0.00      0.000  O       |       |       |       |     0.00  11.083    0.00    0.00      0.000  O       |       |       |       |     0.00  11.167    0.00    0.00      0.000  O       |       |       |       |     0.00  11.250    0.00    0.00      0.000  O       |       |       |       |     0.00  11.333    0.00    0.00      0.000  O       |       |       |       |     0.00  11.417    0.00    0.00      0.000  O       |       |       |       |     0.00  11.500    0.00    0.00      0.000  O       |       |       |       |     0.00  11.583    0.00    0.00      0.000  O       |       |       |       |     0.00  11.667    0.00    0.00      0.000  O       |       |       |       |     0.00  11.750    0.00    0.00      0.000  O       |       |       |       |     0.00  11.833    0.00    0.00      0.000  O       |       |       |       |     0.00  11.917    0.00    0.00      0.000  O       |       |       |       |     0.00  12.000    0.00    0.00      0.000  O       |       |       |       |     0.00  12.083    0.00    0.00      0.000  O       |       |       |       |     0.00  12.167    0.00    0.00      0.000  O       |       |       |       |     0.00  12.250    0.00    0.00      0.000  O       |       |       |       |     0.00  12.333    0.00    0.00      0.000  O       |       |       |       |     0.00  12.417    0.00    0.00      0.000  O       |       |       |       |     0.00  12.500    0.00    0.00      0.000  O       |       |       |       |     0.00  12.583    0.00    0.00      0.000  O       |       |       |       |     0.00  12.667    0.00    0.00      0.000  O       |       |       |       |     0.00  12.750    0.00    0.00      0.000  O       |       |       |       |     0.00  12.833    0.00    0.00      0.000  O       |       |       |       |     0.00  12.917    0.00    0.00      0.000  O       |       |       |       |     0.00  13.000    0.00    0.00      0.000  O       |       |       |       |     0.00  13.083    0.00    0.00      0.000  O       |       |       |       |     0.00  13.167    0.00    0.00      0.000  O       |       |       |       |     0.00  13.250    0.00    0.00      0.000  O       |       |       |       |     0.00  13.333    0.00    0.00      0.000  O       |       |       |       |     0.00  13.417    0.00    0.00      0.000  O       |       |       |       |     0.00  13.500    0.00    0.00      0.000  O       |       |       |       |     0.00  13.583    0.00    0.00      0.000  O       |       |       |       |     0.00  13.667    0.00    0.00      0.000  O       |       |       |       |     0.00  13.750    0.00    0.00      0.000  O       |       |       |       |     0.00  13.833    0.00    0.00      0.000  O       |       |       |       |     0.00  13.917    0.00    0.00      0.000  O       |       |       |       |     0.00  14.000    0.00    0.00      0.000  O       |       |       |       |     0.00  14.083    0.00    0.00      0.000  O       |       |       |       |     0.00  14.167    0.00    0.00      0.000  O       |       |       |       |     0.00  14.250    0.00    0.00      0.000  O       |       |       |       |     0.00  14.333    0.00    0.00      0.000  O       |       |       |       |     0.00  14.417    0.00    0.00      0.000  O       |       |       |       |     0.00  14.500    0.00    0.00      0.000  O       |       |       |       |     0.00  14.583    0.00    0.00      0.000  O       |       |       |       |     0.00  14.667    0.00    0.00      0.000  O       |       |       |       |     0.00  14.750    0.00    0.00      0.000  O       |       |       |       |     0.00  14.833    0.00    0.00      0.000  O       |       |       |       |     0.00  14.917    0.00    0.00      0.000  O       |       |       |       |     0.00  15.000    0.00    0.00      0.000  O       |       |       |       |     0.00  15.083    0.00    0.00      0.000  O       |       |       |       |     0.00  15.167    0.00    0.00      0.000  O       |       |       |       |     0.00  15.250    0.00    0.00      0.000  O       |       |       |       |     0.00  15.333    0.00    0.00      0.000  O       |       |       |       |     0.00  15.417    0.13    0.08      0.000  O       |       |       |       |     0.00  15.500    0.84    0.41      0.002  OI      |       |       |       |     0.09  15.583    1.73    0.41      0.008  O   I   |       |       |       |     0.94  15.667    2.20    0.41      0.019  O    I  |       |       |       |     1.39  15.750    2.55    0.41      0.032  O     I |       |       |       |     1.81  15.833    2.98    0.41      0.048  O      I|       |       |       |     2.30  15.917    3.57    0.41      0.068  O       I       |       |       |     2.86  16.000    4.66    0.41      0.094  O       | I     |       |       |     3.44  16.083    7.44    0.41      0.132  O       |       |I      |       |     4.31  16.167   13.50    0.41      0.202  O       |       |       |      I|     6.06  16.250   13.57    2.34      0.286  |    O  |       |       |       I     9.77  16.333    7.02   11.25      0.296  |       |       I       |       O    14.93  16.417    3.62    0.41      0.279  O       I       |       |       |     8.76  16.500    1.86    2.91      0.286  |   I O |       |       |       |     9.99  16.583    0.49    0.41      0.283  OI      |       |       |       |     8.98  16.667    0.12    0.41      0.282  O       |       |       |       |     8.94  16.750    0.03    0.41      0.280  O       |       |       |       |     8.82  16.833    0.00    0.41      0.277  O       |       |       |       |     8.68  16.917    0.00    0.41      0.274  O       |       |       |       |     8.53  17.000    0.00    0.41      0.271  O       |       |       |       |     8.38  17.083    0.00    0.41      0.268  O       |       |       |       |     8.23  17.167    0.00    0.41      0.266  O       |       |       |       |     8.08  17.250    0.00    0.41      0.263  O       |       |       |       |     7.96  17.333    0.00    0.41      0.260  O       |       |       |       |     7.87  17.417    0.00    0.41      0.257  O       |       |       |       |     7.78  17.500    0.00    0.41      0.254  O       |       |       |       |     7.69  17.583    0.00    0.41      0.252  O       |       |       |       |     7.60  17.667    0.00    0.41      0.249  O       |       |       |       |     7.51  17.750    0.00    0.41      0.246  O       |       |       |       |     7.42  17.833    0.00    0.41      0.243  O       |       |       |       |     7.33  17.917    0.00    0.41      0.240  O       |       |       |       |     7.24  18.000    0.00    0.41      0.237  O       |       |       |       |     7.16  18.083    0.00    0.41      0.235  O       |       |       |       |     7.07  18.167    0.00    0.41      0.232  O       |       |       |       |     6.98  18.250    0.00    0.41      0.229  O       |       |       |       |     6.89  18.333    0.00    0.41      0.226  O       |       |       |       |     6.80  18.417    0.00    0.41      0.223  O       |       |       |       |     6.71  18.500    0.00    0.41      0.221  O       |       |       |       |     6.62  18.583    0.00    0.41      0.218  O       |       |       |       |     6.53  18.667    0.00    0.41      0.215  O       |       |       |       |     6.44  18.750    0.00    0.41      0.212  O       |       |       |       |     6.35  18.833    0.00    0.41      0.209  O       |       |       |       |     6.26  18.917    0.00    0.41      0.206  O       |       |       |       |     6.18  19.000    0.00    0.41      0.204  O       |       |       |       |     6.11  19.083    0.00    0.41      0.201  O       |       |       |       |     6.04  19.167    0.00    0.41      0.198  O       |       |       |       |     5.97  19.250    0.00    0.41      0.195  O       |       |       |       |     5.89  19.333    0.00    0.41      0.192  O       |       |       |       |     5.82  19.417    0.00    0.41      0.189  O       |       |       |       |     5.75  19.500    0.00    0.41      0.187  O       |       |       |       |     5.68  19.583    0.00    0.41      0.184  O       |       |       |       |     5.60  19.667    0.00    0.41      0.181  O       |       |       |       |     5.53  19.750    0.00    0.41      0.178  O       |       |       |       |     5.46  19.833    0.00    0.41      0.175  O       |       |       |       |     5.38  19.917    0.00    0.41      0.173  O       |       |       |       |     5.31  20.000    0.00    0.41      0.170  O       |       |       |       |     5.24  20.083    0.00    0.41      0.167  O       |       |       |       |     5.17  20.167    0.00    0.41      0.164  O       |       |       |       |     5.09  20.250    0.00    0.41      0.161  O       |       |       |       |     5.02  20.333    0.00    0.41      0.158  O       |       |       |       |     4.95  20.417    0.00    0.41      0.156  O       |       |       |       |     4.88  20.500    0.00    0.41      0.153  O       |       |       |       |     4.80  20.583    0.00    0.41      0.150  O       |       |       |       |     4.73  20.667    0.00    0.41      0.147  O       |       |       |       |     4.66  20.750    0.00    0.41      0.144  O       |       |       |       |     4.59  20.833    0.00    0.41      0.142  O       |       |       |       |     4.51  20.917    0.00    0.41      0.139  O       |       |       |       |     4.45  21.000    0.00    0.41      0.136  O       |       |       |       |     4.38  21.083    0.00    0.41      0.133  O       |       |       |       |     4.32  21.167    0.00    0.41      0.130  O       |       |       |       |     4.26  21.250    0.00    0.41      0.127  O       |       |       |       |     4.19  21.333    0.00    0.41      0.125  O       |       |       |       |     4.13  21.417    0.00    0.41      0.122  O       |       |       |       |     4.07  21.500    0.00    0.41      0.119  O       |       |       |       |     4.00  21.583    0.00    0.41      0.116  O       |       |       |       |     3.94  21.667    0.00    0.41      0.113  O       |       |       |       |     3.88  21.750    0.00    0.41      0.110  O       |       |       |       |     3.81  21.833    0.00    0.41      0.108  O       |       |       |       |     3.75  21.917    0.00    0.41      0.105  O       |       |       |       |     3.69  22.000    0.00    0.41      0.102  O       |       |       |       |     3.62  22.083    0.00    0.41      0.099  O       |       |       |       |     3.56  22.167    0.00    0.41      0.096  O       |       |       |       |     3.50  22.250    0.00    0.41      0.094  O       |       |       |       |     3.43  22.333    0.00    0.41      0.091  O       |       |       |       |     3.37  22.417    0.00    0.41      0.088  O       |       |       |       |     3.31  22.500    0.00    0.41      0.085  O       |       |       |       |     3.24  22.583    0.00    0.41      0.082  O       |       |       |       |     3.18  22.667    0.00    0.41      0.079  O       |       |       |       |     3.12  22.750    0.00    0.41      0.077  O       |       |       |       |     3.05  22.833    0.00    0.41      0.074  O       |       |       |       |     2.99  22.917    0.00    0.41      0.071  O       |       |       |       |     2.93  23.000    0.00    0.41      0.068  O       |       |       |       |     2.86  23.083    0.00    0.41      0.065  O       |       |       |       |     2.80  23.167    0.00    0.41      0.062  O       |       |       |       |     2.73  23.250    0.00    0.41      0.060  O       |       |       |       |     2.65  23.333    0.00    0.41      0.057  O       |       |       |       |     2.56  23.417    0.00    0.41      0.054  O       |       |       |       |     2.47  23.500    0.00    0.41      0.051  O       |       |       |       |     2.39  23.583    0.00    0.41      0.048  O       |       |       |       |     2.30  23.667    0.00    0.41      0.046  O       |       |       |       |     2.22  23.750    0.00    0.41      0.043  O       |       |       |       |     2.13  23.833    0.00    0.41      0.040  O       |       |       |       |     2.04  23.917    0.00    0.41      0.037  O       |       |       |       |     1.96  24.000    0.00    0.41      0.034  O       |       |       |       |     1.87  24.083    0.00    0.41      0.031  O       |       |       |       |     1.78  24.167    0.00    0.41      0.029  O       |       |       |       |     1.70  24.250    0.00    0.41      0.026  O       |       |       |       |     1.61  24.333    0.00    0.41      0.023  O       |       |       |       |     1.53  24.417    0.00    0.41      0.020  O       |       |       |       |     1.44  24.500    0.00    0.41      0.017  O       |       |       |       |     1.35  24.583    0.00    0.41      0.014  O       |       |       |       |     1.27  24.667    0.00    0.41      0.012  O       |       |       |       |     1.18  24.750    0.00    0.41      0.009  O       |       |       |       |     1.07  24.833    0.00    0.41      0.006  O       |       |       |       |     0.67  24.917    0.00    0.41      0.003  O       |       |       |       |     0.27  25.000    0.00    0.30      0.001  O       |       |       |       |     0.01  25.083    0.00    0.00      0.000  O       |       |       |       |     0.00 ****************************HYDROGRAPH DATA**************************** Number of intervals =   301 Time interval =    5.0 (Min.) Maximum/Peak flow rate =       11.254 (CFS) Total volume =       0.458 (Ac.Ft) Status of hydrographs being held in storage            Stream 1  Stream 2  Stream 3  Stream 4  Stream 5 Peak (CFS)      0.000     0.000     0.000     0.000     0.000 Vol (Ac.Ft)      0.000     0.000     0.000     0.000     0.000 *********************************************************************** ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Appendix F TECHNICAL GUIDANCE DOCUMENT APPENDICES Worksheet H: Factor of Safety and Design Infiltration Rate and Worksheet Factor Category Factor Description Assigned Weight (w) Factor Value (v) Product (p) p = w x v A Suitability Assessment Soil assessment methods 0.25 1 0.25 Predominant soil texture 0.25 1 0.25 Site soil variability 0.25 1 0.25 Depth to groundwater / impervious layer 0.25 1 0.25 Suitability Assessment Safety Factor, SA = Lp 1.00 B Design Tributary area size 0.25 2 0.50 Level of pretreatment/ expected sediment loads 0.25 1 0.25 Redundancy 0.25 3 0.75 Compaction during construction 0.25 1 0.25 Design Safety Factor, SB = Lp 1.75 Combined Safety Factor, STOT= SA x SB 1.75; USE 2.0 Measured Infiltration Rate, inch/hr, KM (corrected for test-specific bias) 25.6 (lowest tested rate) Design Infiltration Rate, in/hr, KDESIGN = STOT × KM Use 12.8 Supporting Data Briefly describe infiltration test and provide reference to test forms: See Section 6.4 of the project WQMP for project Soil Infiltration Testing by Norcal Engineering, Project No. 12343-05, dated 10/6/2017. Two locations were tested within the limits of the proposed underground infiltration system and the lowest value is to be used in the design of proposed infiltration BMPs. Note: The minimum combined adjustment factor shall not be less than 2.0 and the maximum combined adjustment factor shall not exceed 9.0. VII-35 May 19, 2011 APPENDIX F CULTURAL RESOURCES STUDY March 2022 CULTURAL RESOURCES ASSESSMENT HILTON INDUSTRIAL FACILITY BUSINESS PARK PROJECT CITY OF FONTANA SAN BERNARDINO COUNTY, CALIFORNIA March 2022 CULTURAL RESOURCES ASSESSMENT HILTON INDUSTRIAL FACILITY BUSINESS PARK PROJECT CITY OF FONTANA SAN BERNARDINO COUNTY, CALIFORNIA Prepared for: Jon Dille Associate Planner City of Fontana Community Development Department 8353 Sierra Avenue Fontana, California 92335 Prepared by: Riordan Goodwin, RA LSA Associates, Inc. 1500 Iowa Avenue, Suite 200 Riverside, California 92507 (951) 781-9310 LSA Project No. CFN2005.06 National Archaeological Database Information: Type of Study: Reconnaissance Survey Sites Recorded: None USGS 7.5' Quadrangle: Fontana, California Acreage: ~4 acres Keywords: Phase I, negative results, no monitoring recommended. C ULTURAL R ESOURCES A SSESSMENT M ARCH 2022 H ILTON I NDUSTRIAL F ACILITY B USINESS P ARK P ROJECT F ONTANA, C ALIFORNIA R:\CFN2005.06_Hilton Warehouse\Technical Studies\Cultural\Report\Hilton Ind Fac Biz Pk CRA.docx (03/17/22) i MANAGEMENT SUMMARY LSA was retained by the City of Fontana to conduct a cultural resources assessment for the proposed Hilton Industrial Facility Business Park Project in the City of Fontana, San Bernardino County, California. This cultural resources assessment was completed pursuant to the California Environmental Quality Act (CEQA). A cultural resources records search, additional research, and a field survey were conducted for the project area. No cultural resources are documented within the project parcel, and none were identified by the survey. No prehistoric resources were documented within a mile, and sensitivity for in situ undocumented subsurface resources is low. Therefore, no further investigation or archaeological monitoring is recommended. In the event previously undocumented archaeological resources are identified during earthmoving activities, further work in the area should be halted until the nature and significance of the find can be assessed by a qualified archaeologist. If human remains are encountered, State Health and Safety Code Section 7050.5 states that no further disturbance shall occur until the County Coroner has made a determination of origin and disposition pursuant to State Public Resources Code Section 5097.98. The County Coroner must be notified of the find immediately. If the remains are determined to be Native American, the County Coroner will notify the Native American Heritage Commission (NAHC), which will determine and notify a Most Likely Descendant (MLD). With the permission of the landowner or his/her authorized representative, the MLD may inspect the site of the discovery. The MLD shall complete the inspection and make recommendations or preferences for treatment within 48 hours of being granted access to the site. The MLD recommendations may include scientific removal and nondestructive analysis of human remains and items associated with Native American burials, preservation of Native American human remains and associated items in place, relinquishment of Native American human remains and associated items to the descendants for treatment, or any other culturally appropriate treatment. C ULTURAL R ESOURCES A SSESSMENT M ARCH 2022 H ILTON I NDUSTRIAL F ACILITY B USINESS P ARK P ROJECT F ONTANA, C ALIFORNIA R:\CFN2005.06_Hilton Warehouse\Technical Studies\Cultural\Report\Hilton Ind Fac Biz Pk CRA.docx (03/17/22) ii TABLE OF CONTENTS MANAGEMENT SUMMARY .......................................................................................... I TABLE OF CONTENTS ................................................................................................... II Figure ............................................................................................................................................. ii Table .............................................................................................................................................. ii Appendix ....................................................................................................................................... ii INTRODUCTION .......................................................................................................... 1 NATURAL SETTING ...................................................................................................... 1 Climate and Watershed ................................................................................................................. 1 Biology ........................................................................................................................................... 1 Geology ......................................................................................................................................... 1 CULTURAL SETTING ..................................................................................................... 3 Prehistory ...................................................................................................................................... 3 Ethnography .................................................................................................................................. 3 History ........................................................................................................................................... 5 METHODS ................................................................................................................... 6 Records Search .............................................................................................................................. 6 Additional Research ...................................................................................................................... 6 Field Survey ................................................................................................................................... 6 RESULTS ..................................................................................................................... 6 Records Search .............................................................................................................................. 6 Additional Research ...................................................................................................................... 7 Field Survey ................................................................................................................................... 7 FINDINGS AND RECOMMENDATIONS .......................................................................... 8 REFERENCES ............................................................................................................... 9 Figure Figure 1: Project Regional and Project Location .................................................................................... 2 Table Table A: Cultural Resources Within 1 Mile ............................................................................................. 7 Appendix A: Records Search Bibliography C ULTURAL R ESOURCES A SSESSMENT M ARCH 2022 H ILTON I NDUSTRIAL F ACILITY B USINESS P ARK P ROJECT F ONTANA, C ALIFORNIA R:\CFN2005.06_Hilton Warehouse\Technical Studies\Cultural\Report\Hilton Ind Fac Biz Pk CRA.docx (03/17/22) 1 INTRODUCTION LSA was retained by the City of Fontana to conduct a cultural resources assessment for the proposed Hilton Industrial Facility Business Park Project in the City of Fontana, San Bernardino County, California. This assessment was completed pursuant to the California Environmental Quality Act (CEQA), Public Resources Code Chapter 2.6, Section 21083.2, and California Code of Regulations Title 14, Chapter 3, Article 5, Section 15064.5. The research and field surveys were conducted to determine whether the proposed project could adversely affect any resources considered historical resources per CEQA. The project area (Assessor’s Parcel Number 1110-151-03) is located on the north side of Hilton Drive between Hemlock Avenue and Redwood Avenue. The project is depicted on the United States Geological Survey (USGS) Fontana, California topographic quadrangle map in Township 1 South, Range 6 West in Section 2, San Bernardino Baseline and Meridian (USGS 1980; Figure 1). The project area is a currently vacant 4-acre lot. The proposed project is an industrial/business park with associated parking. NATURAL SETTING Climate and Watershed The project region is characterized by a temperate climate, with dry, hot summers and moderate winters. Rainfall ranges from 12 to 16 inches annually (Beck and Haase 1974). Precipitation usually occurs in the form of winter rain, with warm monsoonal showers in summer. The project area is approximately 1.5 miles east of the former course of East Etiwanda Creek (prior to channelization), which drains south. Biology At an average elevation of approximately 1,260 feet, the project is within the Lower Sonoran Life Zone of California (Schoenherr 1992), which ranges from below sea level to 3,500 feet in elevation. Species such as datura, foxtail brome, mustard, along with xeric grasses were noted on the property. Extensive fauna are known locally, including many endemic species of reptiles, birds, and insects. Geology The project area is located at the northern end of the Peninsular Ranges Geomorphic Province, a 900-mile-long northwest-southeast trending structural block that extends from the Transverse Ranges to the tip of Baja California and includes the Los Angeles Basin (California Geological Survey 2002; Norris and Webb 1976). The province is approximately 225 miles wide, extending from the Colorado Desert in the east, across the continental shelf to the Southern Channel Islands (Santa Barbara, San Nicolas, Santa Catalina, and San Clemente) in the west (Sharp 1976). This region is characterized by a series of mountain ranges separated by northwest-trending valleys subparallel to faults branching from the San Andreas Fault. The geology of this province is similar to that of the Sierra Nevada, with numerous rock outcroppings useful to the Native Americans for resource milling, shelter, and ceremonial art. LEGEND Project Location SOURCE: USGS 7.5' Quad - Fontana (1980), Guasti (1981), Cucamonga Peak (1988), Devore (1988), CA I:\CFN2005.06\GIS\MXD\ProjLoc_USGS.mxd (1/4/2022) FIGURE 1 Hilton Logistics Bus iness ParkRegional and Project Location 0 1000 2000 FEET SanBernardinoCounty LosAngelesCounty RiversideCountyÃÃ142 ÃÃ138 ÃÃ18 ÃÃ173 ÃÃ71 ÃÃ210 ÃÃ91 ÃÃ60 Project Location §¨¦15 §¨¦215 §¨¦10 Project Vicinity C ULTURAL R ESOURCES A SSESSMENT M ARCH 2022 H ILTON I NDUSTRIAL F ACILITY B USINESS P ARK P ROJECT F ONTANA, C ALIFORNIA R:\CFN2005.06_Hilton Warehouse\Technical Studies\Cultural\Report\Hilton Ind Fac Biz Pk CRA.docx (03/17/22) 3 CULTURAL SETTING Prehistory Chronologies of prehistoric cultural change in Southern California have been attempted numerous times, and several are reviewed in Moratto (2004). No single description is universally accepted as the various chronologies are based primarily on material developments identified by researchers familiar with sites in a particular region and variation exists essentially due to the differences in those items found at the sites. Small differences occur over time and space, which combine to form patterns that are variously interpreted. Currently, two primary regional culture chronology syntheses are commonly referenced in the archaeological literature. The first, Wallace (1955), describes four cultural horizons or time periods: Horizon I – Early Man (9000–6000 BC), Horizon II – Milling Stone Assemblages (6000–3000 BC), Horizon III – Intermediate Cultures (3000 BC–AD 500), and Horizon IV – Late Prehistoric Cultures (AD 500–historic contact). This chronology was refined (Wallace 1978) using absolute chronological dates obtained after 1955. The second cultural chronology (Warren 1968) is based broadly on Southern California prehistoric cultures and was also revised (Warren 1984; Warren and Crabtree 1986). Warren’s (1984) chronology includes five periods in prehistory: Lake Mojave (7000–5000 BC), Pinto (5000–2000 BC), Gypsum (2000 BC–AD 500), Saratoga Springs (AD 500–1200), and Protohistoric (AD 1200–historic contact). Changes in settlement pattern and subsistence focus are viewed as cultural adaptations to a changing environment, which begins with gradual environmental warming in the late Pleistocene, continues with the desiccation of the desert lakes, followed by a brief return to pluvial conditions, and concludes with a general warming and drying trend, with periodic reversals that continue to the present (Warren and Crabtree 1986). Ethnography The project area is near the intersection of the traditional cultural territories of the Cahuilla, Gabrielino, and Serrano (Kroeber 1925; Heizer 1968). Tribal territories were somewhat fluid and changed over time. The first written accounts of these Southern California tribes are attributed to the mission fathers, and later documentation was by others as indicated below. Cahuilla The territory of the Cahuilla ranged from the San Bernardino Mountains south to Borrego Springs and the Chocolate Mountains, from Orocopia Mountain to the east, to the San Jacinto Plain and Palomar Mountain to the west (Bean 1978). Cahuilla territory lies within the geographic center of Southern California and encompassed diverse environments ranging from inland river valleys and foothills to mountains and desert (Bean and Shipek 1978). Cahuilla villages, generally located near water sources within canyons or near alluvial fans, comprised groups of related individuals, generally from a single lineage, and the territory around the village was owned by the villagers (Bean 1978). Like other Native American groups in Southern C ULTURAL R ESOURCES A SSESSMENT M ARCH 2022 H ILTON I NDUSTRIAL F ACILITY B USINESS P ARK P ROJECT F ONTANA, C ALIFORNIA R:\CFN2005.06_Hilton Warehouse\Technical Studies\Cultural\Report\Hilton Ind Fac Biz Pk CRA.docx (03/17/22) 4 California, the Cahuilla were semi-nomadic peoples leaving their villages and utilizing temporary campsites to exploit seasonably available plant and animal resources (James 1960). Cahuilla subsistence was based primarily on acorns, honey mesquite, screw beans, piñon nuts, and cactus fruit, supplemented by a variety of wild fruits and berries, tubers, roots, and greens (Kroeber 1925; Heizer and Elsasser 1980). Hunting deer, rabbit, antelope, bighorn sheep, reptiles, small rodents, quail, doves, ducks, and reptiles by means of bows, throwing sticks, traps, and communal drives is documented (James 1960). The Cahuilla were documented by Barrows (1900), Hooper (1920), and Strong (1929) among others. Gabrielino The territory of the Gabrielino included portions of Los Angeles, Orange, and San Bernardino Counties during ethnohistoric times, and also extended inland into northwestern Riverside County (Kroeber 1925; Heizer 1968). It encompassed an extremely diverse environment that included coastal beaches, lagoons and marshes, inland river valleys, foothills and mountains (Bean and Shipek 1978). The Gabrielino caught and collected seasonally available food resources, and led a semi-sedentary lifestyle, living in permanent communities along inland watercourses and coastal estuaries. Individuals from these villages took advantage of the varied resources available. Seasonally, as foods became available, native groups moved to temporary camps to collect plant foods such as acorns, buckwheat, chía, berries, and fruits, and to conduct communal rabbit and deer hunts. They also established seasonal camps along the coast and near bays and estuaries to gather shellfish and hunt waterfowl (Hudson 1971). The Gabrielino lived in small communities, which were the focus of family life. Patrilineally linked, extended families occupied each village (Kroeber 1925; Bean and Smith 1978a). Both clans and villages were apparently exogamous, marrying individuals from outside the clan or village (Heizer 1968). Gabrielino villages were politically independent and were administered by a chief, who inherited his position from his father. Shamans guided religious and medical activities, while group hunting or fishing was supervised by individual male specialists (Bean and Smith 1978a). The nearest historically known Native American community was the Gabrielino community of Horuuvunga (also known to the Serrano as Jurupet and described to Alfred Kroeber as Hurumpa) located approximately 7 miles south of the project area somewhere in the Jurupa Valley (Kroeber 1925; Kirkman 1938; McCawley 1996). The Gabrielino were described by Johnston (1962), Blackburn (1962–1963), Hudson (1971), and others. Serrano The Serrano lived in the area generally north of Cahuilla territory (western Riverside County), occupying much of present-day San Bernardino County and northeastern Los Angeles County, but C ULTURAL R ESOURCES A SSESSMENT M ARCH 2022 H ILTON I NDUSTRIAL F ACILITY B USINESS P ARK P ROJECT F ONTANA, C ALIFORNIA R:\CFN2005.06_Hilton Warehouse\Technical Studies\Cultural\Report\Hilton Ind Fac Biz Pk CRA.docx (03/17/22) 5 there is some overlap in the ancestral areas. The term Serrano is Spanish for “mountaineer” or “highlander” and is derived from sierra, meaning “mountain range” and was given to people who inhabited the areas of the San Bernardino Mountains that had no associated mission (Bean and Smith 1978b). The Serrano culture group actually incorporates two divisions, a mountain division (referred to as the Mountain Serrano) and a desert division, referred to as the Desert Serrano (Sutton and Earle 2017). The Serrano were hunter-gatherers who exploited whatever flora was available in the area they happened to be, generally it was acorns, pinion nuts, honey, mesquite, yucca, and cactus fruits, in addition to various seeds, bulbs, and roots. Plants were consumed both raw and cooked. Food processing involved the use of manos, metates, mortars, and pestles. Antelope, deer, mountain sheep, rabbits, and rodents were hunted and captured, and the most common hunting implements were the bow and arrow, throwing stick, traps, snares, and deadfalls. Meat was prepared in earth ovens, by boiling in watertight baskets, or by parching (Bean and Smith 1978b). The Serrano had a patrilineal society composed of clans and families linked by both ancestry and ceremony, and most lived in small communities near reliable sources of water (springs, perennial seeps, streams, and small lakes) (Benedict 1924). The basic settlement unit of the Serrano was a village with a number of small satellite resource-gathering camps. The Serrano were described by Benedict (1924), Bright (1975), Strong (1929), and others. History In California, the historic era is generally divided into three periods: the Spanish Period (1769 to 1821), the Mexican Period (1821 to 1848), and the American Period (1848 to present). As there were no resources within the project area, the historic context will focus on the County and the local community. San Bernardino County San Bernardino County was created in 1853 from portions of Los Angeles and San Diego Counties due to mineral wealth, and the City of San Bernardino was incorporated as the County Seat the following year. Gold was discovered in Holcomb and Bear Valleys in the San Bernardino Mountains in 1860, and placer mining began in Lytle Creek. Silver was mined at Ivanpah in 1870 and the silver mines of the Calico district were developed in the 1880s. Borax was first discovered in 1862 in the Searles Dry Lake area near Trona (Hoover et al. 1990). Agriculture ultimately replaced mining as the County’s economic base, with thousands of acres under cultivation by the beginning of World War I (McGroarty 1914). Fontana The area that would later become Fontana was part of a land grant to Don Antonio Maria Lugo from the Spanish Governor of California (Pio Pico) in 1813. Lugo’s sons sold a portion of the land (including part of what is now Fontana) to a group of Mormon settlers in 1851 (Richards 1966), and the Semi-Tropical Land & Water Company subsequently acquired the Fontana portion of the Rancho and laid out a townsite in 1887 (Gudde 1998). In the early 1900s, the Fontana Development C ULTURAL R ESOURCES A SSESSMENT M ARCH 2022 H ILTON I NDUSTRIAL F ACILITY B USINESS P ARK P ROJECT F ONTANA, C ALIFORNIA R:\CFN2005.06_Hilton Warehouse\Technical Studies\Cultural\Report\Hilton Ind Fac Biz Pk CRA.docx (03/17/22) 6 Company acquired the land and established a community called Rosena, changed to Fontana in 1913 (Gudde 1998). Fontana was selected as the site for the Kaiser Company’s steel mill in 1942 and was incorporated 10 years later with a population of 13,695 as Southern California’s leading producer of steel and related products (Goodwin 2003). The steel industry dominated the City’s economy until the late 1970s, when Kaiser Steel began to reduce production and manpower, and the mill was closed in 1983 (Goodwin 2003). The plate steel and rolling mill plant was subsequently acquired by California Steel Company, which continues to produce steel products. METHODS Records Search On February 23, 2022, the cultural resources records search was completed for the project area by the South Central Coastal Information Center (SCCIC) located at California State University, Fullerton. It included a review of all recorded historic and prehistoric archaeological sites within 1 mile of the project, as well as a review of known cultural resource reports. Appendix A contains the records search bibliography. Additional Research In January 2022, Senior Cultural Resources Manager/Archaeologist Riordan Goodwin reviewed the Built Environment Resource Directory (BERD) along with LSA project files, online historic period maps, and aerial photographs. Field Survey On January 13, 2022, Mr. Goodwin surveyed the project area by walking transects spaced approximately 10 meters apart, with particular attention given to exposed areas and rodent dirt apron for cultural residues. RESULTS Records Search Data from the SCCIC indicate there have been 23 cultural resource studies previously conducted within 1 mile of the proposed project, three of which included the entirety of the project area (Swope and McDonald 1985; Alexandrowicz et al. 1992; Tang et al. 2013). Although no cultural resources are documented within the project area, 21 built environment resources are recorded within 1 mile (Table A). The nearest (36-020310, a motel property) is approximately 100 feet south of the project. Only one of the resources is listed in the BERD (36-015392). No prehistoric resources are documented within a mile. C ULTURAL R ESOURCES A SSESSMENT M ARCH 2022 H ILTON I NDUSTRIAL F ACILITY B USINESS P ARK P ROJECT F ONTANA, C ALIFORNIA R:\CFN2005.06_Hilton Warehouse\Technical Studies\Cultural\Report\Hilton Ind Fac Biz Pk CRA.docx (03/17/22) 7 Table A: Cultural Resources Within 1 Mile Primary # Trinomial # Site Description Status Codes 36-002910 CA-SBR-0002910/H Historic period road (National Old Trails Highway/Route 66) — 36-012239 Historic period bridge (both prehistoric and historic elements) site — 36-013921 CA-SBR-012735/H 8396 Cherry Avenue (c. 1951 residence) — 36-015392 8631 Sierra Avenue (historic period residence) 6Y 36-015497 Base Line Road — 36-020137 CA-SBR-015904/H Historic period railroad alignment (Pacific Electric/Southern Pacific) — 36-020309 14718 Foothill Blvd. (c. 1943 residence) — 36-020310 14888 Foothill Blvd. (c. 1944 Redwing Motel) — 36-020311 14127–14129 Foothill Blvd. & 8155 Banana Ave. (c. 1944 residential/commercial building) — 36-020312 14293 Foothill Blvd. (c. 1944 residence) — 36-021695 8566 Cherry Avenue (c. 1927 residence) — 36-021696 8657 Cherry Avenue (c. 1924 residence) — 36-024084 CA-SBR-015269/H Historic period road (Cherry Avenue) — 36-024087 CA-SBR-015272/H Historic period road (Beech Avenue) — 36-024088 CA-SBR-015273H Historic period road (Oak Avenue) — 36-024621 CA-SBR-015662H Historic period road (Sultana Avenue) — 36-024622 CA-SBR-015663H Historic period road (Redwood Avenue) — 36-024623 CA-SBR-015664H Historic period road (Lime Avenue?) — 36-024624 CA-SBR-015665H Historic period road (unnamed road) — 36-024625 CA-SBR-015666H National Old Trails Highway/Route 66 — 36-024698 CA-SBR-015739H Historic period road (Hemlock Avenue) — 36-029538 Historic period water conveyance system (West Fontana Flood Control Channel) — Additional Research Online research revealed that with the possible exception of the concrete slab/ramp (constructed sometime after 1966 - see below), there were never any buildings or structures within the project area during the historic period. However, a segment of a eucalyptus windrow transected the northern portion of the project area from the late 1930s into the mid-2000s (HistoricAerials.com 2021). Field Survey Mr. Goodwin conducted the pedestrian survey of the entire project area utilizing transects spaced approximately 10 meters apart. Visibility was excellent, with only approximately 10 percent of the ground surface obscured by xeric vegetation. Soils are rocky alluvium with pervasive concrete and C ULTURAL R ESOURCES A SSESSMENT M ARCH 2022 H ILTON I NDUSTRIAL F ACILITY B USINESS P ARK P ROJECT F ONTANA, C ALIFORNIA R:\CFN2005.06_Hilton Warehouse\Technical Studies\Cultural\Report\Hilton Ind Fac Biz Pk CRA.docx (03/17/22) 8 fine (small) macadam fragments. A temporally ambiguous concrete slab/ramp along with imported gravel (apparently a driveway/parking area) was noted in the southwestern quarter of the property, and a remnant of a segment of a eucalyptus windrow (a row of stumps) was noted transecting the northern portion of the project. Trace modern refuse was noted throughout the site. No cultural resources were identified. FINDINGS AND RECOMMENDATIONS A cultural resources records search, additional research, and a field survey were conducted for the project area. No cultural resources are documented within the project parcel and none was identified by the survey. No prehistoric resources were documented within a mile, and sensitivity for in situ undocumented subsurface resources is low. Therefore, no further investigation or archaeological monitoring is recommended. In the event previously undocumented archaeological resources are identified during earthmoving activities, further work in the area should be halted until the nature and significance of the find can be assessed by a qualified archaeologist. In the event human remains are encountered, State Health and Safety Code Section 7050.5. states that no further disturbance shall occur until the County Coroner has made a determination of origin and disposition pursuant to State Public Resources Code Section 5097.98. The County Coroner must be notified of the find immediately. If the remains are determined to be Native American, the County Coroner will notify the NAHC, which will determine and notify an MLD. With the permission of the landowner or his/her authorized representative, the MLD may inspect the site of the discovery. The MLD shall complete the inspection and make recommendations or preferences for treatment within 48 hours of being granted access to the site. The MLD recommendations may include scientific removal and nondestructive analysis of human remains and items associated with Native American burials, preservation of Native American human remains and associated items in place, relinquishment of Native American human remains and associated items to the descendants for treatment, or any other culturally appropriate treatment. C ULTURAL R ESOURCES A SSESSMENT M ARCH 2022 H ILTON I NDUSTRIAL F ACILITY B USINESS P ARK P ROJECT F ONTANA, C ALIFORNIA R:\CFN2005.06_Hilton Warehouse\Technical Studies\Cultural\Report\Hilton Ind Fac Biz Pk CRA.docx (03/17/22) 9 REFERENCES Alexandrowicz, J. Steven, Anne Q. Duffield-Stoll, Jeanette A. Mckenna, Susan R. Alexandrowicz, Arthur A. Kuhner, and Eric Scott 1992 Cultural and Paleontological Resources Investigations Within the North Fontana Infrastructure Area, City of Fontana, San Bernardino County, California. Archaeological Consulting Services. Barrows, David Prescott 1900 The Ethno-botany of the Coahilla [sic] Indians of Southern California. Chicago: University of Chicago Press. Bean, Lowell John 1978 Cahuilla. In California, edited by R.F. Heizer, pp. 575–587. Handbook of North American Indians, vol. 8, W.C. Sturtevant, general editor, Smithsonian Institution, Washington, D.C. Bean, Lowell John, and Charles R. Smith 1978a Gabrielino. In California, edited by R.F. Heizer, pp. 538–549. Handbook of North American Indians, vol. 8, W.C. Sturtevant, general editor, Smithsonian Institution, Washington, D.C. 1978b Serrano. In California, edited by R.F. Heizer, pp. 570–574. Handbook of North American Indians, vol. 8, W.C. Sturtevant, general editor, Smithsonian Institution, Washington, D.C. Bean, Lowell John, and Florence C. Shipek 1978 Luiseño. In California, edited by R.F. Heizer, pp. 550–563. Handbook of North American Indians, vol. 8, W.C. Sturtevant, general editor, Smithsonian Institution, Washington, D.C. Beck, Warren A., and Ynez D. Haase 1974 Historical Atlas of California. Oklahoma City: University of Oklahoma Press. Benedict, Ruth F. 1924 A Brief Sketch of Serrano Culture. American Anthropologist 26 (3). Betts, William F. 2014 Tracking the Trackless Trolley: An Archaeological Examination of the Lone Pine Canyon Trolley. Blackburn, Thomas C. 1962–1963 Ethnohistoric Descriptions of Gabrielino Material Culture. Annual Reports of the University of California Archaeological Survey 5: 1–50. Bright, William 1975 Two Notes on Takic Classification: Paper read at the Third Annual Uto-Aztecan Conference, Flagstaff, June 19–20, 1975. (Copy, Manuscript No. 76–66 in National Anthropological Archives, Smithsonian Institution, Washington.) C ULTURAL R ESOURCES A SSESSMENT M ARCH 2022 H ILTON I NDUSTRIAL F ACILITY B USINESS P ARK P ROJECT F ONTANA, C ALIFORNIA R:\CFN2005.06_Hilton Warehouse\Technical Studies\Cultural\Report\Hilton Ind Fac Biz Pk CRA.docx (03/17/22) 10 California Geological Survey 2002 California Geomorphic Provinces. California Geologic Survey Note 36. California Department of Conservation. Goodwin, Riordan 2003 Cultural and Paleontological Resources Assessment, J.W. Mitchell Specific Plan, City of Fontana, San Bernardino County, California. Unpublished report on file at the AIC. Gudde, Erwin G. 1998 California Place Names: The Origin and Etymology of Current Geographical Names. Fourth edition, revised and enlarged by William Bright. Berkeley and Los Angeles: University of California Press. Harley, R. Bruce 1988 Rev. Juan Caballeria: Historian or Storyteller? Rethinking the 1810 Dumetz Expedition. San Bernardino County Museum Quarterly 35(2), 42 p. Harrington, John Peabody 1913 Ethnographic Notes of John Peabody Harrington, p. 12. Heizer, Robert F. 1968 The Indians of Los Angeles County. Hugo Reid’s Letters of 1852. Southwest Museum Papers 21. Los Angeles, California. Heizer, Robert F., and Albert B. Elsasser 1980 The Natural World of the California Indians. University of California Press, Berkeley and Los Angeles. HistoricAerials.com 2021 Various aerial photographs including the project area from 1948-2005. Hooper, Lucile 1920 The Cahuilla Indians. University of California Publication in American Archaeology and Ethnology. Vol. 16 No. 6. Reprinted by Malki Museum Press. Banning, California. Hoover, Mildred Brooke, Hero Eugene Rensch, Ethel Grace Rensch, William N. Abeloe, and revised by Douglas E. Kyle 1990 Historic Spots in California, Stanford University Press, Stanford, California. Hudson, D. Travis 1971 Proto-Gabrielino Patterns of Territorial Organization in Southern Coastal California. Pacific Coast Archaeological Society Quarterly 7(2):49–76. James, Harry C. 1960 The Cahuilla Indians. Los Angeles: Westernlore Press. Reprinted in 1969 and 1985 by Malki Museum Press. Banning, California. C ULTURAL R ESOURCES A SSESSMENT M ARCH 2022 H ILTON I NDUSTRIAL F ACILITY B USINESS P ARK P ROJECT F ONTANA, C ALIFORNIA R:\CFN2005.06_Hilton Warehouse\Technical Studies\Cultural\Report\Hilton Ind Fac Biz Pk CRA.docx (03/17/22) 11 Johnston, Bernice E. 1962 California’s Gabrielino Indians. Frederick Webb Hodge Anniversary Publication Fund 8, Los Angeles: Southwest Museum. Kirkman, George W. 1938 The Kirkman-Harriman Pictorial and Historical Map of Los Angeles County: 1860 A.D. Kroeber, A.L. 1925 Handbook of the Indians of California. Bulletin No. 78, Bureau of American Ethnology, Smithsonian Institution, Washington, D.C. McCawley, William 1996 The First Angelinos: The Gabrielino Indians of Los Angeles. Banning and Novato: Malki Museum Press and Ballena Press. McGroarty, John Steve 1914 Southern California. Southern California Panama Exposition Commission. Moratto, Michael J. 2004 California Archaeology. Orlando, Florida: Academic Press. Originally published 1984. Norris, R.M., and R.W. Webb 1976 Geology of California, John Wiley and Sons, Inc., Santa Barbara. Richards, Elizabeth W. 1966 Guideposts to History: Concerning Origins of Place and Street Names in San Bernardino County. Santa Fe Federal Savings. Schoenherr, Allan A. 1992 A Natural History of California. University of California Press, Berkeley and Los Angeles. Sharp, R.P. 1976 Geology: Field Guide to Southern California. Kendall/Hunt Publishing Company, Second Edition: 181. Strong, William D. 1929 Aboriginal Society in Southern California. University of California Publications in American Archaeology and Ethnology 26(1): 1–358. Berkeley. Swope, Karen, and Meg McDonald 1985 Environmental Impact Evaluation: Archaeological Assessment of Tentative Tract 13000, City of Fontana, San Bernardino County, California. ARU UCR. C ULTURAL R ESOURCES A SSESSMENT M ARCH 2022 H ILTON I NDUSTRIAL F ACILITY B USINESS P ARK P ROJECT F ONTANA, C ALIFORNIA R:\CFN2005.06_Hilton Warehouse\Technical Studies\Cultural\Report\Hilton Ind Fac Biz Pk CRA.docx (03/17/22) 12 Tang, Bai "Tom," Deirdre Encarnacion, Terri Jacquemain, and Daniel Ballester 2013 Historical/Archaeological Resources Survey Report: Vulcan Conservation and Flood Control Project, in and near the City of Fontana, San Bernardino County, California. CRM Tech. USGS (United States Geological Survey) 1980 Fontana, California 7.5-minute topographic quadrangle map. Wallace, William J. 1955 A Suggested Chronology for Southern California Coastal Archaeology. Southwestern Journal of Anthropology 11(3):214–230. 1978 Post-Pleistocene Archaeology. In California, edited by R. Heizer, pp. 550–563. Handbook of North American Indians, Vol. 8. W.C. Sturtevant, general editor. Smithsonian Institution, Washington, D.C. Warren, Claude N. 1968 Cultural Tradition and Ecological Adaptation on the Southern California Coast. Eastern New Mexico University Contributions in Anthropology 1(3). Portales. 1984 The Desert Region. In California Archaeology, by M. Moratto with contributions by D.A. Fredrickson, C. Raven, and C. N. Warren, pp. 339–430. Academic Press, Orlando, Florida. Warren, Claude N., and Robert H. Crabtree 1986 Prehistory of the Southwestern Area. In W.L. D’Azevedo ed., Handbook of the North American Indians, Vol. 11, Great Basin, pp. 183–193. Washington D.C.: Smithsonian Institution. C ULTURAL R ESOURCES A SSESSMENT M ARCH 2022 H ILTON I NDUSTRIAL F ACILITY B USINESS P ARK P ROJECT F ONTANA, C ALIFORNIA R:\CFN2005.06_Hilton Warehouse\Technical Studies\Cultural\Report\Hilton Ind Fac Biz Pk CRA.docx (03/17/22) APPENDIX A RECORDS SEARCH BIBLIOGRAPHY Report List Report No.Year Title AffiliationAuthor(s)ResourcesOther IDs SB-01189 1981 CULTURAL RESOURCES REPORT ON THE RANCHO FONTANA PROJECT LOCATED IN THE FONTANA AREA OF THE COUNTY OF SAN BERNARDINO SCIENTIFIC RESOURCE SURVEYS, INC. SCIENTIFIC RESOURCE SURVEYS, INC. NADB-R - 1061189; Voided - 81-9.7 SB-01501 1985 CULTURAL RESOURCE SURVEY REPORT FOR THE ETIWANDA PIPELINE AND POWER PLANT EIR SCIENTIFIC RESOURCES SURVEYS, INC. MASON, ROGER D.NADB-R - 1061501; Voided - 85-7.6 SB-01506 1985 ENVIRONMENTAL IMPACT EVALUATION: ARCHAEOLOGICAL ASSESSMENT OF TENTATIVE TRACT 13000, CITY OF FONTANA, SAN BERNARDINO COUNTY, CALIFORNIA ARCHAEOLOGICAL RESEARCH UNIT, UCR SWOPE, KAREN K. and MEG MCDONALD NADB-R - 1061506; Voided - 85-9.2 SB-02033 1990 A PHASE I ARCHAEOLOGICAL INVESTIGATION OF THE PROPOSED LEWIS HOMES' PROJECT AREA, FONTANA, SAN BERNARDINO COUNTY, CALIFORNIA MCKENNA ET AL.MCKENNA, JEANETTE A. NADB-R - 1062033; Voided - 90-5.2 SB-02502 1992 CULTURAL RESOURCES SURVEY OF A FIVE-ACRE PARCEL NEAR FONTANA, SAN BERNARDINO COUNTY, CALIFORNIA RESEARCH ASSOCIATESSWOPE, KAREN K.NADB-R - 1062502; Voided - 92-2.3 SB-02621 1992 CULTURAL AND PALEONTOLOGICAL RESOURCES INVESTIGATIONS WITHIN THE NORTH FONTANA INFRASTRUCTURE AREA, CITY OF FONTANA, SAN BERNARDINO COUNTY, CALIFORNIA ARCHAEOLOGICAL CONSULTING SERVICES ALEXANDROWICZ, J. STEVEN, ANNE Q. DUFFIELD-STOLL, JEANETTE A. MCKENNA, SUSAN R. ALEXANDROWICZ, ARTHUR A. KUHNER, and ERIC SCOTT 36-004296, 36-006110, 36-006111, 36-006251, 36-006583, 36-006584, 36-006585, 36-006586, 36-006587, 36-006588, 36-006589, 36-006807, 36-006808, 36-006809, 36-006810, 36-006811, 36-006812, 36-006813, 36-006814, 36-006815, 36-006816 NADB-R - 1062621; Voided - 92-2.20A-B SB-03050 1995 A CULTURAL RESOURCES RECONNAISSANCE SURVEY OF WESTGATE PROPERTY (1000 +/- ACRES) IN THE CITY OF FONTANA, SAN BERNARDINO COUNTY, CA MCKENNA ET ALMCKENNA, JEANETTE A. 36-006901NADB-R - 1063050 SB-04176 2003 CULTURAL RESOURCES INVESTIGATION OF STATE ROUTE 66 (FOOTHILL BLVD) WIDENING PROJECT, PHASE II, CITY OF FONTANA, SAN BERNARDINO COUNTY, CA. 72PP CHAMBERS GROUP, INCCOTTERMAN, CARY D., EVELYN N. CHANDLER, and ROGER D. MASON NADB-R - 1064176 SB-04244 2004 CA 8525 (SNOWBALL), FONTANA. 10PP MCKENNA ET ALMCKENNA, JEANETTE A. NADB-R - 1064244 Page 1 of 3 SBAIC 2/15/2022 5:12:23 PM Report List Report No.Year Title AffiliationAuthor(s)ResourcesOther IDs SB-04538 2004 CA 8525 (SNOWBALL). 8PP MCKENNA ET ALMCKENNA, JEANETTE A. NADB-R - 1064538 SB-04539 2004 CA 8525B (EXCISE). 10PP MCKENNA ET ALMCKENNA, JEANETTE A. NADB-R - 1064539 SB-04869 2005 Cultural Resource Records Search and Site Visit Results for Cingular Telecommunications Facility Candidate LSANCA8114B (First Choice Self Storage), 14750 Foothill Boulevard, Fontana, San Bernardino County, California. Bonner, Wayne H. and Marnie Aislin-Kay NADB-R - 1064869 SB-05062 2005 An Archaeological Records Search and Survey Report: APN's 1110-331-005 to -12 and -22; 1110-161-021 to -023 and 110-331- 003, Tracts 16526, 16604 & 17010, +/- 58- acre Property, City of Fontana, San Bernardino County, California. L&L Environmental, IncHoover, Anna M.NADB-R - 1065062 SB-05498 2003 Historical Resources Compliance Report for Relinquishment of State Route 66 (Foothill Boulevard), City of Fontana, San Bernardino County, California. Caltrans District 8Hammond, Christie 36-002910Caltrans - ; NADB-R - 1065498 SB-05498A 2003 Historical Resources Evaluation Report for the Relinquishment of State Route 66 (Foothill Boulevard) Between East Avenue/ Ilex Street and Maple Avenue city of Fontana San Bernardino, CA Caltrans District 8Christie Hammond SB-05869 2007 Cultural Resources Evaluation Report for the Cherry Avenue Road Widening Project, West Fontana, San Bernardino County, California. Mason, Roger D. and Cary Cotterman 36-013921, 36-021695, 36-021696NADB-R - 1065869 SB-05911 2007 The Standard in Environmental Risk Information, Cherry Line 14800 Baseline Avenue, Fontana, CA 92366, Inquiry Number: 2012679.7s Environmental Data Resources inc SB-05999 2008 Identification and Evaluation of Historic Properties: Northeast Recycled Water Expansion Projects in and near the Cities of Rancho Cucamonga and Fontana, San Bernardino County, California. CRMTECHTang, Bai “Tom”, John J. Eddy, Harry M. Quinn, Terri Jacquemain, Daniel Ballester, and Laura Hensley Shaker NADB-R - 1065999 Page 2 of 3 SBAIC 2/15/2022 5:12:24 PM Report List Report No.Year Title AffiliationAuthor(s)ResourcesOther IDs SB-06000 2008 Extended Phase I Historical/Archaeological Resources Study: Northeast Recycled Water Expansion Projects in and near the Cities of Rancho Cucamonga and Fontana, San Bernardino County, California. CRM TECHTang, Bai “Tom”, John J. Eddy, Harry M. Quinn, Terri Jacquemain, Daniel Ballester, and Laura Hensley Shaker NADB-R - 1066000 SB-06534 2009 Cultural Resource Records Search and Site Visit Results for Verizon Wireless Candidate Cherryline, 14337 Baseline Avenue, Fontana, San Bernardino County, California. Michael Brandman Associates Bonner, Wayne H. and Arabesque Said NADB-R - 1066534 SB-07048 2012 Cultural Resource Assessment Study for Verizon "Hemlock" Site in Rancho Cucamonga, San Bernardino County, California Discovery WorksPadon, Beth 36-016454 SB-07401 2013 Historical/Archaeological Resources Survey Report: Vulcan Conservation and Flood Control Project, in and near the City of Fontana, San Bernardino County, California. CRM TechTang, Bai "Tom", Deirdre Encarnacion, Terri Jacquemain, and Daniel Ballester NADB-R - 1067401 SB-07922 2016 A Phase I Cultural Resources Investigation of the Proposed West Fontana Flood Control Channel, Fontana, San Bernardino Co., California McKenna et al.McKenna, Jeanette 36-029538 Page 3 of 3 SBAIC 2/15/2022 5:12:25 PM