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Appendix E - Phase I Hazard
APPENDIX E HAZARDS Phase I Environmental Site Assessment Citrus and Summit Fontana, California 92336 March 12, 2021 Lennar Homes of California c/o Brian F. Smith and Associates, Inc. 14010 Poway Road, Suite A Poway, California 92064 Project Number 21-02-014 Prepared by: 1938 Kellogg Avenue, Suite 116 Carlsbad, CA 92008 (760) 585-7070 www.weisenviro.com 1938 Kellogg Avenue, Suite 116, Carlsbad, CA 92008 (760) 585-7070 www.weisenviro.com March 12, 2021 Lennar Homes of California c/o Brian F. Smith and Associates, Inc. 14010 Poway Road, Suite A Poway, California 92064 Subject: Phase I Environmental Site Assessment Citrus and Summit Fontana, California 92336 Project Number 21-02-014 To Whom It May Concern: Weis Environmental, LLC has completed the contracted environmental consulting services for the above-referenced project. The services were performed in accordance with our proposal and agreement fully executed by all parties. The Phase I Environmental Site Assessment has been performed in accordance with ASTM International (ASTM) Standard Practice for Environmental Site Assessments: Phase I Environmental Site Assessment Process, ASTM Designation E1527-13 and Title 40 of the Code of Federal Regulations (40 CFR) Part 312. We appreciate the opportunity to be of service to you on this project. Please contact us if you have any questions or comments regarding this report or if we can be of further assistance. Sincerely, Weis Environmental, LLC ________________________ Daniel Weis, R.E.H.S. Environmental Manager TABLE OF CONTENTS 1.0 INTRODUCTION ......................................................................................................................... 1 1.1 Purpose ................................................................................................................................... 1 1.2 Scope of the Assessment ........................................................................................................ 1 1.3 Limitations and Exceptions .................................................................................................... 2 1.4 Special Terms and Conditions................................................................................................ 3 1.5 Limiting Conditions and Deviations ...................................................................................... 3 1.6 Data Failure and Data Gaps ................................................................................................... 3 1.7 Reliance .................................................................................................................................. 3 2.0 SITE DESCRIPTION .................................................................................................................... 4 2.1 Location and Legal Description ............................................................................................. 4 2.2 Site and Vicinity Characteristics ............................................................................................ 4 2.3 Current Use of the Site ........................................................................................................... 4 2.4 Description of Site Improvements .......................................................................................... 4 2.5 Utilities ................................................................................................................................... 4 2.6 Description of Adjoining Properties ...................................................................................... 4 2.7 Summary Relative to Environmental Concerns ..................................................................... 5 3.0 PHYSICAL SETTING .................................................................................................................. 6 3.1 Topography ............................................................................................................................ 6 3.2 Hydrology .............................................................................................................................. 6 3.3 Geology .................................................................................................................................. 6 3.4 Hydrogeology ......................................................................................................................... 6 3.5 Oil and Gas Exploration ......................................................................................................... 7 3.6 Summary Relative to Environmental Concerns ..................................................................... 7 4.0 USER PROVIDED INFORMATION ........................................................................................... 8 4.1 Title Records .......................................................................................................................... 8 4.2 Environmental Liens .............................................................................................................. 8 4.3 Activity and Use Limitations ................................................................................................. 8 4.4 Specialized or Actual Knowledge or Experience ................................................................... 8 4.5 Commonly Known or Reasonably Ascertainable Information .............................................. 8 4.6 Valuation Reduction for Environmental Issues ..................................................................... 8 4.7 Owner, Property Manager, and Occupant Information .......................................................... 9 4.8 Reason for Performing Phase I ESA ...................................................................................... 9 4.9 Proceedings Involving the Site ............................................................................................... 9 4.10 Other Provided Documents .................................................................................................... 9 4.11 Summary Relative to Environmental Concerns ..................................................................... 9 5.0 REGULATORY RECORDS REVIEW ....................................................................................... 10 5.1 Standard ASTM Regulatory Database Search ..................................................................... 10 5.2 Non-ASTM Regulatory Database Search ............................................................................ 12 5.3 Regulatory Agency File Reviews ......................................................................................... 13 5.4 Summary Relative to Environmental Concerns ................................................................... 13 6.0 HISTORICAL RESOURCE REVIEW ....................................................................................... 14 6.1 Aerial Photographs ............................................................................................................... 14 6.2 Topographic Maps ............................................................................................................... 15 6.3 Other Historical Sources ...................................................................................................... 15 6.4 Summary Relative to Environmental Concerns ................................................................... 15 7.0 SITE RECONAISSANCE ........................................................................................................... 16 7.1 Methodology and Limiting Conditions ................................................................................ 16 7.2 Current General Site and Vicinity Characteristics ............................................................... 16 7.3 Indications of Past Site and Vicinity Uses ........................................................................... 16 7.4 Site-Specific Observations ................................................................................................... 16 7.5 Summary Relative to Environmental Concerns ................................................................... 17 8.0 INTERVIEWS ............................................................................................................................. 18 8.1 Site Owner ............................................................................................................................ 18 8.2 Key Site Manager ................................................................................................................. 18 8.3 Current Occupants ................................................................................................................ 18 8.4 Local Government Official .................................................................................................. 18 8.5 Other Parties ......................................................................................................................... 18 8.6 Summary Relative to Environmental Concerns ................................................................... 18 9.0 ADDITIONAL SERVICES – NON-SCOPE ASTM CONSIDERATIONS ............................... 19 10.0 FINDINGS AND OPINIONS .................................................................................................... 20 11.0 CONCLUSIONS AND RECOMMENDATIONS .................................................................... 21 12.0 ENVIRONMENTAL PROFESSIONAL STATEMENT .......................................................... 22 13.0 ASSUMPTIONS ........................................................................................................................ 23 14.0 DEFINITIONS ........................................................................................................................... 24 15.0 REFERENCES .......................................................................................................................... 26 15.1 Documents, Plans and Reports ............................................................................................. 26 15.2 Personal Communications .................................................................................................... 26 15.3 Agencies Consulted .............................................................................................................. 26 FIGURES Figure 1 Vicinity Map Figure 2 Site Plan Figure 3 Topographic Map APPENDICES Appendix A Regulatory Database Report Appendix B Historical Resources Appendix C Photographs Appendix D Qualifications Phase I Environmental Site Assessment March 12, 2021 Citrus and Summit, Fontana, California Page 1 of 26 1.0 INTRODUCTION This report presents the methods and findings of a Phase I Environmental Site Assessment (ESA) of the property identified as Citrus and Summit and further identified by San Bernardino County Assessor’s Parcel Numbers (APNs) 0239-141-30-0000 and 1107-262-37-0000, in the City of Fontana, San Bernardino County, California (Site) performed in conformance with the contract/agreement for this assignment and the scope and limitations of ASTM Standard Practice E1527-13 and United States Environmental Protection Agency (EPA) Standards and Practices for All Appropriate Inquiries (AAI) as published in 40 Code of Federal Regulations (CFR) Part 312. EPA promulgated the AAI rule that became effective in November 2006 and has indicated that the ASTM E1527 practice is consistent with the requirements of AAI and may be used to comply with the provisions of the AAI rule. 1.1 Purpose The purpose of the ASTM E1527 practice (framework for this Phase I ESA) is to define good commercial and customary practice in the United States of America for conducting an ESA of a parcel of real estate with respect to the range of contaminants within the scope of the Comprehensive Environmental Response, Compensation and Liability Act (CERCLA) (Title 42 United States Code (U.S.C.) Section 9601)) and petroleum products. As such, this practice is intended to permit a user to satisfy one of the requirements to qualify for the innocent landowner, contiguous property owner, or bona fide prospective purchaser limitations on CERCLA liability (hereinafter, the “landowner liability protections,” or “LLPs”): that is, the practice that constitutes all appropriate inquiries into the previous ownership and uses of the property consistent with good commercial and customary practice as defined at 42 U.S.C. Section 9601(35)(B). In defining a standard of good commercial and customary practice for conducting this Phase I ESA of the Site, the goal of the processes established by the ASTM E1527 practice is to identify, to the extent feasible, recognized environmental conditions. The term recognized environmental conditions is defined as the presence or likely presence of any hazardous substances or petroleum products in, on, or at a property: (1) due to any release to the environment; (2) under conditions indicative of a release to the environment; or (3) under conditions that pose a material threat of a future release to the environment. In addition, controlled recognized environmental conditions, historical recognized environmental conditions and/or de minimis conditions, if identified during the completion of the assessment, are discussed herein. Definitions of these terms and other key terminology relevant to the practice are included in Section 14.0 of this report. 1.2 Scope of the Assessment In general terms, this Phase I ESA included the acquisition of readily available/accessible and practically reviewable regulatory records and historical information, a site reconnaissance, interviews, and preparation of this written report of findings. A more detailed description of the four primary components of the Phase I ESA is presented below. Records Review - A review of Federal, State, Tribal, and local standard ASTM and non-ASTM regulatory databases for a myriad of environmental identifiers including but not limited to properties with underground storage tanks (USTs), properties with leaking USTs, properties that have reported spills/releases that did not occur from a leaking UST, businesses that utilize hazardous materials and/or generate hazardous waste and hazardous waste disposal locations. The regulatory review may also Phase I Environmental Site Assessment March 12, 2021 Citrus and Summit, Fontana, California Page 2 of 26 include public records requests with one or more Federal, State, Tribal and/or local agencies. A review of historical sources is also completed to help ascertain previous land uses of the property in question and in the surrounding area. Site Reconnaissance - A property inspection and viewing of adjacent and surrounding properties for conditions that could be recognized environmental conditions. Interviews - Interviews with present and past owners, operators and/or occupants of a property and local government officials. Reporting - Evaluation of the information gathered during the completion of the Phase I ESA and the subsequent preparation of a written report. 1.3 Limitations and Exceptions Concerns regarding liability under the Comprehensive Environmental Response, Compensation and Liability Act, 42 U.S.C. 9601 et seq. (CERCLA) and analogous State laws, have been a primary driver for Phase I ESA assignments in commercial real estate transactions. While the ASTM E1527 practice can be used in many contexts, a familiarity with CERCLA and its potential LLPs is critical in understanding and applying the ASTM E1527 practice. We advise consultation with legal counsel if further inquiry or information is desired. AAI represents the minimum level of inquiry necessary to support the LLPs. However, it is important to understand that additional inquiry ultimately may be necessary or desirable for legal as well as business reasons depending upon the outcome of this inquiry and the particular risk tolerances of a given user. For example, additional inquiry may assist a user of a Phase I ESA in determining whether he or she would have continuing obligations in the event he or she acquires a given property and may also assist the user in defining the scope of future steps to be taken to satisfy such obligations. In addition, a user may be concerned about business environmental risks or non-scope ASTM considerations that do not fall within the definition of a recognized environmental condition. In addition, this assessment did not include subsurface or other invasive exploration. Users are also cautioned that Federal, State, Tribal and local laws may impose environmental assessment obligations that are beyond the scope of the ASTM E1527 practice. The evaluation, opinion and conclusions presented herein are based solely on visual observations and regulatory, historical, and personal knowledge related information that existed at the time our assessment was completed. The use of the gathered information is exclusively for the purposes outlined in this report and only for the Site. Our firm can make no warranty, either express or implied, except that the services conducted were performed in accordance with generally accepted environmental assessment practices applicable at the time and location of the assessment and that the conclusions of the assessment have been based in part on professional judgment/experience, an interpretation of readily available data and the standard of care normally followed by similar professionals practicing in a similar locale and under similar circumstances. Any opinions presented cannot apply to Site changes of which our firm is unaware and has not had the opportunity to evaluate. In addition, this report cannot feasibly include any evaluation of undocumented activities at the Site or on adjacent or nearby properties. Lastly, a Phase I ESA meeting or exceeding this practice and completed less than 180 days prior to the date of acquisition of a given property or (for transactions not involving an acquisition) the date of the intended transaction is presumed to be valid. Phase I Environmental Site Assessment March 12, 2021 Citrus and Summit, Fontana, California Page 3 of 26 1.4 Special Terms and Conditions This Phase I ESA was prepared in accordance with the terms and conditions of the contract/agreement for the work as executed between our firm and the client. There are no other special terms and conditions established between our firm and the client pertinent to the findings of this ESA or methodology used to complete this assessment. In addition, our firm has no final or other vested interest in the Site or adjacent/surrounding properties, or in any entity that owns or occupies the Site or adjacent/surrounding properties. 1.5 Limiting Conditions and Deviations There were no significant limiting conditions that would inhibit our ability to identify recognized environmental conditions noted during the completion of this assessment. In addition, there were no deviations from the ASTM E1527 standard noted during the completion of this assessment. Any limiting conditions that are not considered to be ones that would inhibit our ability to identify recognized environmental conditions at the Site are referenced in applicable sections of this report. 1.6 Data Failure and Data Gaps No instances of data failure were encountered during the completion of this assessment. In addition, no data gaps of significance (i.e. those that would inhibit our ability to identify recognized environmental conditions) were identified during the completion of this assessment. Any data gaps that are not considered to be ones that would inhibit our ability to identify recognized environmental conditions at the Site are referenced in applicable sections of this report. 1.7 Reliance This report has been prepared for the exclusive use of the client. This report may not be relied upon by any other person or entity without the written consent of both our firm and our client. The scope of services performed for this assessment may not be appropriate to satisfy the specific needs of other users, and any use or reuse of this document would be at the sole risk of said users. Any other party seeking liability protection under CERCLA must take independent action to accomplish its objective. Phase I Environmental Site Assessment March 12, 2021 Citrus and Summit, Fontana, California Page 4 of 26 2.0 SITE DESCRIPTION 2.1 Location and Legal Description The Site is a reported 18.22 acres, has no reported physical address and is identified by San Bernardino County APNs 0239-141-30-0000 and 1107-262-37-0000. The Site is comprised of two undeveloped parcels that are located on the northeast (i.e. eastern parcel) and northwest (i.e. western parcel) corners of Citrus and Summit Avenues. The Site is also located approximately 1.35 miles east of Interstate 15. A Vicinity Map is included as Figure 1. A Site Plan is included as Figure 2. 2.2 Site and Vicinity Characteristics The Site and the surrounding vicinity are situated in the City of Fontana that consists primarily of residential properties, vacant land, and public roadways. Additional details pertaining to the Site and its adjoining properties are provided in the sections below. 2.3 Current Use of the Site The Site is currently two vacant and undeveloped lots. 2.4 Description of Site Improvements There are no habitable structures present at the Site. Remnants of what appeared to be former structures are present on the eastern parcel and consist of concrete slabs and some stone walls and other features. Indicators of various subsurface utility systems were also observed. A higher level of confidence regarding the nature of extent of surface indicators or features can be obtained from a utility or geophysical consultant. 2.5 Utilities Utilities that are reported to be present at the Site or provide service in the surrounding area are noted below along with their municipal provider where applicable. If certain utility systems are not provided by public agencies or entities, they are noted as privately maintained. Utility Provider (Where Applicable) Potable Water Fontana Water Company Sewage Maintenance City of Fontana Electrical Southern California Edison Natural Gas Southern California Gas Solid Waste Disposal Burrtec Waste 2.6 Description of Adjoining Properties Adjoining properties are defined as any real property or properties, the border of which is contiguous or partially contiguous with that of the subject property of a Phase I ESA, or that would be contiguous or partially contiguous with that of a subject property but for a street, road, or other public thoroughfare separating them. To the extent feasible, our firm performed a visual inspection of adjoining properties from the Site boundaries and along public right of ways. We did not encroach on to adjoining private Phase I Environmental Site Assessment March 12, 2021 Citrus and Summit, Fontana, California Page 5 of 26 property during the completion of this assessment. The following table identifies the adjoining property uses: Direction Adjoining Property Use North Residential development South Summit Avenue, then an aboveground water reservoir, commercial (school) and/or residential development East Citrus Avenue (APN 1107-262-37-0000) and residential development (APN 0239- 141-30-0000) West Vacant land and residential development (APN 1107-262-37-0000) and Citrus Avenue (APN 0239-141-30-0000) 2.7 Summary Relative to Environmental Concerns No recognized environmental conditions were noted in connection with the land use of the Site and improvements at the Site. In addition, the land uses of adjoining properties and properties in the vicinity of the Site do not represent recognized environmental conditions to the Site. Phase I Environmental Site Assessment March 12, 2021 Citrus and Summit, Fontana, California Page 6 of 26 3.0 PHYSICAL SETTING 3.1 Topography The Site is depicted on the United States Geological Survey (USGS) topographic map for the Devore, California 7.5-minute quadrangle. The Site is shown on the map as being situated at an elevation of approximately 1,650 feet above mean sea level. The Site and surrounding area appear to trend slightly to moderately downward toward the south and southwest. There are no improvements, structures or surface waters depicted on-Site on the map. Adjoining and surrounding roadways are depicted on the map. The Site as depicted on a topographic map is included as Figure 3. 3.2 Hydrology The Site is situated within the Duncan Canyon Creek Hydrologic Subarea of the Santa Ana Watershed Hydrologic Unit. There are no known substantial hydrologic features at the Site including major storm drain inlets or obvious drainages, channels, or surface waters. Infiltration of precipitation can be expected at the Site due to its unimproved nature. Any excess water would appear to flow as surface runoff to streets/roadways and surrounding areas of lower elevation. The Site does not appear to receive significant drainage from off-Site properties. 3.3 Geology General geologic information pertaining to the Site is presented in the table below. Geologic Consideration Details California Geomorphic Province Transverse Ranges. Mapped Soils or Formation Pleistocene-age and Holocene-age, marine and non-marine sedimentary rocks. Description of Soils or Formation Unconsolidated alluvium. Distance/Direction to Mapped Faults A segment of the San Jacinto Fault is located immediately south of the Site. 3.4 Hydrogeology General hydrogeologic information pertaining to the Site is presented in the table below. Hydrogeologic Consideration Details Groundwater Basin or Unit Duncan Canyon Creek Hydrologic Subarea. Beneficial Uses Intermittent beneficial uses for municipal, agricultural, industrial, and process. Estimated Depth to Groundwater Anticipated to be greater than 50 feet below the surface. Estimated Flow of Groundwater South to southwest. Phase I Environmental Site Assessment March 12, 2021 Citrus and Summit, Fontana, California Page 7 of 26 Hydrogeologic Consideration Details Known Site or Regional Groundwater Contamination Issues None. 3.5 Oil and Gas Exploration According to online resources provided by the California Department of Conservation, Geologic Energy Management Division (CalGEM), there are no oil, gas or geothermal wells located on the Site or its adjacent properties. 3.6 Summary Relative to Environmental Concerns No recognized environmental conditions were noted in connection with Site physical setting considerations. In addition, physical setting considerations related to the adjoining properties and properties in the vicinity of the Site do not represent recognized environmental conditions to the Site. Phase I Environmental Site Assessment March 12, 2021 Citrus and Summit, Fontana, California Page 8 of 26 4.0 USER PROVIDED INFORMATION A representative of the user of this report (Lennar Homes) was interviewed during the completion of this assessment. The questions posed during the interview are defined by the ASTM E1527 practice. The client also provided our firm with any land title records and judicial records that may be available for the Site as part of the required evaluation for environmental liens and activity and use limitations (AULs) in connection with the subject property of a Phase I ESA. As stated in the ASTM E1527 practice, it is the responsibility of the user of the report to provide any available records pertaining to environmental liens and AULs that may exist in connection with a given property. Any land title and judicial recorded provided to our firm are discussed below. If such information is not discussed in the sections below, it was not provided by the user of the report. In addition to the contact information obtained, the user of the report was also asked if they are aware of other useful documents that may exist and if so whether copies can be provided to the environmental professional within reasonable time and cost constraints. A list of typical useful documents is included in Section 10.8.1 of the ASTM E1527 practice and include but are not limited to environmental assessment reports, compliance audits and permits, registrations for tank and other aboveground or underground systems, safety plans, spill prevention and other facility related plans and geological/geotechnical studies and environmental governmental agency notices and/or correspondence. 4.1 Title Records Our firm was not provided with title records pertaining to the Site. 4.2 Environmental Liens The client is unaware of environmental liens in connection with the Site. 4.3 Activity and Use Limitations The client is unaware of AULs in connection with the Site. 4.4 Specialized or Actual Knowledge or Experience The client is unaware of specialized knowledge, actual knowledge or experience that is material to recognized environmental conditions in connection with the Site. 4.5 Commonly Known or Reasonably Ascertainable Information The client is unaware of commonly known or reasonably ascertainable information within the local community that is material to recognized environmental conditions in connection with the Site. 4.6 Valuation Reduction for Environmental Issues The client is unaware of information pertaining to an undervalued purchase price of the Site relative to the estimated fair market value of the Site due to the presence of contamination. Phase I Environmental Site Assessment March 12, 2021 Citrus and Summit, Fontana, California Page 9 of 26 4.7 Owner, Property Manager, and Occupant Information The Site is currently owned and managed by H&H Partnership (APN 0239-141-30-0000) and Aky LLC (APN 1107-262-37-0000). The Site is currently vacant with no known occupants. 4.8 Reason for Performing Phase I ESA The client has commissioned this Phase I ESA as part of a proposed real estate transaction (acquisition and development). The Phase I ESA is also being completed to assist the client in complying with 40 CFR Part 312. 4.9 Proceedings Involving the Site The client is unaware of pending, threatened, or past litigation and administrative proceedings relevant to hazardous substances or petroleum products in, on, or from the Site. The client is also unaware of notices from any governmental entity regarding any possible violation of environmental laws or possible liability relating to hazardous substances or petroleum products in connection with the Site. 4.10 Other Provided Documents Prior environmental documents pertaining to the Site were not provided to our firm during the completion of this assessment. 4.11 Summary Relative to Environmental Concerns No recognized environmental conditions were noted in connection with the user provided information. Phase I Environmental Site Assessment March 12, 2021 Citrus and Summit, Fontana, California Page 10 of 26 5.0 REGULATORY RECORDS REVIEW Our firm commissioned the preparation of a regulatory database report from Environmental Risk Information Services (ERIS) as part of the regulatory records review. ERIS searches a myriad of Federal, State, and local government environmental databases during the preparation of their deliverables. Certain databases are specifically required by the ASTM E1527 practice and are referenced as “standard ASTM regulatory databases.” Such databases are searched to at least the minimum search distance around a given property as defined in the practice. Other regulatory databases are also searched that are not specifically referenced in ASTM E1527. Such databases are referenced as “non-ASTM regulatory databases” and are searched as varying radii around a given property as selected by ERIS. Descriptions of each database searched and the dates that the regulatory databases were last updated by the applicable agencies are included in the ERIS report. The extent of historical information varies with each database and current information is determined by what is publicly available to ERIS at the time of an updates. ERIS updates databases in accordance with ASTM E1527 which states that government information from nongovernmental sources may be considered current if the source updates the information at least every 90 days, or, for information that is updated less frequently than quarterly by the government agency, within 90 days of the date the government agency makes the information available to the public. Our firm also reviewed unplottable sites listed in the database report by cross-referencing reasonably ascertainable information pertaining to such properties that may include facility names, street names, zip codes or other information. Unplottable sites are ones that cannot be formally mapped or geocoded due to various reasons, including limited geographic information. Any unplottable sites that we identify within the specified search radii have been evaluated as part of the preparation of this report. A copy of the regulatory database report is included in Appendix A. 5.1 Standard ASTM Regulatory Database Search The tables below present the standard Federal, State, Tribal and local ASTM databases that were searched by ERIS including the search distances from the Site. Below the tables are descriptions of any listings for the Site that may appear in the databases. In addition, a discussion of adjoining properties or properties in the Site vicinity that are listed in one or more regulatory databases that in our professional judgment and opinion have the potential to adversely impact the Site due to current or former releases of hazardous substances and/or petroleum products that occurred at said properties is presented. This practice of discussing only properties of potential environmental concern to the Site is noted in ASTM E1527 which states that the environmental professional may make statements applicable to multiple properties listed in regulatory databases that are not likely to have current or former releases of hazardous substances and/or petroleum products with the potential to migrate to the a given subject property. Our professional judgment and opinions discussed herein are based on several factors including the nature of the regulatory database listings, distance of the off-Site listed properties from the Site, orientation of the listed properties relative to the Site, interpreted the direction of groundwater flow and/or regulatory case status information for the various properties as described in the databases. Phase I Environmental Site Assessment March 12, 2021 Citrus and Summit, Fontana, California Page 11 of 26 The following Federal standard ASTM databases were searched: Standard Environmental Record Source Name ERIS Regulatory Database Identification Search Distance From Site (Miles) National Priorities List (NPL) Site List NPL – Proposed NPL – Superfund Record of Decision (ROD) 1.0 Delisted NPL Site List Deleted NPL 0.5 Comprehensive Environmental Response, Compensation and Liability Information System (CERCLIS) List CERCLIS - SEMS – SEMS Archive – ODI – IODI – CERCLIS LIENS – SEMS LIENS 0.5 CERCLIS List CERCLIS LIENS – SEMS LIENS Site CERCLIS No Further Remedial Action Planned (NFRAP) Site List CERCLIS NFRAP 0.5 Resource Conservation and Recovery Act (RCRA) Corrective Action Sites (CORRACTS) Facilities List RCRA CORRACTS 1.0 RCRA Non-CORRACTS Treatment, Storage and Disposal (TSD) Facilities List RCRA TSD 0.5 RCRA Generators List RCRA LQG – RCRA SQG – RCRA CESQG – RCRA NON-GEN – BULK TERMINAL – REFN – FEMA Underground Storage Tank (UST) 0.25 Institutional Control/Engineering Control Registries FED ENG – FED INST – FED Brownfields 0.5 Emergency Response Notification System (ERNS) List ERNS – ERNS 1982 to 1986 – ERNS 1987 to 1989 Site Site – The Site is not listed on any of the standard Federal ASTM regulatory databases. Adjoining Properties – No adjoining properties are listed on any of the standard Federal ASTM regulatory databases. Other Properties – No other properties in the surrounding area are listed on any of the standard Federal ASTM regulatory databases. The following State, Tribal and local standard ASTM databases were searched: Standard Environmental Record Sources Name ERIS Regulatory Database Identification Search Distance From Site (Miles) Equivalent NPL RESPONSE 1.0 Equivalent CERCLIS ENVIROSTOR – DELISTED ENVS – HWP - HHSS 0.5 Landfill and/or Solid Waste Disposal Site Lists SWF/LF – LDS – SWAT – SWRCB SWF 0.5 Phase I Environmental Site Assessment March 12, 2021 Citrus and Summit, Fontana, California Page 12 of 26 Standard Environmental Record Sources Name ERIS Regulatory Database Identification Search Distance From Site (Miles) Leaking Storage Tank Lists LUST – DELISTED LST – UST CLOSURE – CLEANUP SITES – INDIAN LUST – DELISTED ILST 0.5 Registered Storage Tank Lists UST – AST – DELISTED TNK – CERS TANK – DELISTED CTNK – HIST TANK – INDIAN UST – DELISTED IUST – DELISTED COUNTY Site and Adjoining Properties Institutional Control/Engineering Control Registries LUR – HLUR - DEED Site Voluntary Cleanup Sites VCP 0.5 Brownfield Sites Not Applicable – No Database Exists 0.5 Site – The Site is not listed on any of the State, Tribal and local standard ASTM regulatory databases. Adjoining Properties – One adjoining property is listed on the ENVIROSTOR database. This south adjoining property is identified as Sierra Lakes Elementary School at 5740 Avenal Place. The listing pertains to the development of the existing school site. The property is not considered to have the potential to adversely impact the Site. Other Properties – There are seven listings on the State, Tribal and local standard ASTM regulatory databases pertaining to multiple properties in the surrounding area that are identified on the ENVIROSTOR database. None of these properties are considered to have the potential to adversely impact the Site. 5.2 Non-ASTM Regulatory Database Search A myriad of non-ASTM regulatory databases was searched by ERIS as noted in the regulatory database report. Site – The Site is not listed on any of the non-ASTM regulatory databases. It should be noted that five CDL listings that are reported to be on Citrus Avenue and north of Summit Avenue were identified. The listings pertain to abandoned drug lab waste and/or equipment that were found at a property between 2001 and 2002. It is unclear if the listing is associated with the Site. No indication of a significant release was noted, and the listings appear to have been closed by the local oversight agency. An additional listing was noted on the HAZNET database and identified as Stratham Citrus Inc. and located on the corner of Citrus Avenue and Summit Avenue. It is also unclear if this listing is associated with the Site. The listing pertained to the removal/disposal of asbestos-containing materials in 2016. No additional details were noted. Based on the nature of the listings and reported proper disposal of the related wastes, these listings are not expected to have adversely impacted the Site. Adjoining Properties – No adjoining properties are listed on any of the non-ASTM regulatory databases. Other Properties – There are six listings on the non-ASTM regulatory databases pertaining to properties in the surrounding area that are identified on the SCH database. None of these properties are considered to have the potential to adversely impact the Site. Phase I Environmental Site Assessment March 12, 2021 Citrus and Summit, Fontana, California Page 13 of 26 5.3 Regulatory Agency File Reviews If a property being assessed under a Phase I ESA or any of the adjoining properties are identified on one or more of the above referenced standard environmental record sources, pertinent regulatory files and/or records associated with such listings should be reviewed to assist the environmental professional in evaluating if recognized environmental conditions existing at a given subject property in connection with any listings. However, if in the environmental professional’s opinion, such a review is not warranted, file reviews need not be conducted if the environmental professional provides justification for not doing so. Agency file reviews for the Site completed during this assessment are noted below. No file reviews for adjoining properties or properties in the surrounding area were deemed warranted with the exception of research completed on the State Water Resources Control Board Geotracker database regarding properties in the surrounding area of the Site. The agency inquiries were performed by way of on-line searches/queries of published databases and/or direct inquiries with public records clerks at one or more agencies. Regulatory Agency Jurisdiction Date of Inquiry or Request Contact Response or Information From Agency United States EPA Envirofacts/ECHO/ TRIS Federal 2/17/2021 Online https://enviro.epa.gov/ https://echo.epa.gov/facilities/facility- search https://www.epa.gov/toxics-release- inventory-tri-program No Records Identified California Department of Toxic Substances Control State 2/17/2021 Online https://www.envirostor.dtsc.ca.gov/public https://hwts.dtsc.ca.gov/report_list.cfm Public Records Clerk No Records Identified State Water Resources Control Board/Regional Water Quality Control Board State 2/17/2021 Online https://geotracker.waterboards.ca.gov/ https://geotracker.waterboards.ca.gov/his torical_ust_facilities Public Records Clerk No Records Identified San Bernardino County Local 2/17/2021 Public Records Clerk No Records Identified As shown in the table above, no records pertaining to the Site were identified. 5.4 Summary Relative to Environmental Concerns No recognized environmental conditions were noted in connection with the regulatory records searches. In addition, regulatory resources related to the adjoining properties and properties in the vicinity of the Site do not represent recognized environmental conditions to the Site. Phase I Environmental Site Assessment March 12, 2021 Citrus and Summit, Fontana, California Page 14 of 26 6.0 HISTORICAL RESOURCE REVIEW The objective of consulting historical sources is to develop a history of the previous uses of a property and surrounding area, in order to help identify the likelihood of past uses having led to recognized environmental conditions in connection with a given property. The goal of the historical research is to identify all obvious uses of a subject property from the present, back to the property’s first developed use, or back to 1940, whichever is earlier. The environmental professional exercises professional judgment in reviewing only as many of the standard historical sources referenced in ASTM E1527 that are deemed necessary, are reasonably ascertainable and are likely to be useful. Historical resources reviewed during the completion of this assessment are referenced below. Copies of the historical resources are included in Appendix B. 6.1 Aerial Photographs We reviewed historical aerial photographs from the years 1935, 1938, 1948, 1952, 1958, 1966, 1975, 1980, 1985, 1994, 2002, 2005, 2010, 2012, 2018, and 2020 provided by ERIS. The table below presents the results of the photograph review. Photograph Year Site Observations Adjoining Property Observations 1935-1994 The Site appears to be developed with structures along the northeast corner of Summit Avenue and Citrus Avenue, while the remaining of the Site appears to be undeveloped or used for agricultural purposes (eastern parcel). With the exception of streets and/or roadways, adjoining properties appear to be undeveloped land, agricultural land, or developed with rural residences. 2002-2005 The western portion of the Site appears to be undergoing clearing and grading, while the structures on the eastern portion of the Site are no longer visible. Adjoining properties appear to be vacant land, undergoing site improvements, residential development, or are associated with an aboveground water reservoir. 2010-2020 The Site remains vacant and undeveloped. Adjoining properties are predominantly residential and/or commercial or are undergoing site improvements. Existing streets and roadways are visible. As stated above, portions of the Site (eastern parcel) appear to have been previously used for agricultural purposes. During historical agricultural activities throughout the State of California, various pesticides and more specifically organochlorine pesticides were commonly applied during the normal course of agricultural operations. Such compounds have since been banned from production and use in the United States. Based on the regulatory and historical research completed during the preparation of this assessment, no information has been revealed that would lead us to believe that an accidental spill or release of pesticide products has occurred at the Site. In addition, the Site will undergo substantial grading in preparation for new development. The general construction process has been known to be a mitigating factor during the development of former agricultural properties in the area. As such, the potential presence of residual agricultural chemicals in Site soils is not considered to be a recognized environmental condition in connection with the Site. If the client desires a higher level of confidence regarding the potential presence of residual agricultural chemicals in Site soils, soil sampling and analysis can be conducted. Phase I Environmental Site Assessment March 12, 2021 Citrus and Summit, Fontana, California Page 15 of 26 6.2 Topographic Maps Our firm reviewed topographic maps from the years 1896, 1898, 1901, 1936, 1941, 1954, 1966, 1980, 1988, 1996, and 2015 provided by ERIS. On the topographic maps from 1896 to 1936, the Site is depicted as being vacant and undeveloped land. The Site is depicted as being vacant and undeveloped land on the western portion and developed with up to four structures on the eastern portion beginning on the topographic maps from 1941 to 1996. No structural development was noted on the topographic map in 2015. Adjoining properties initially appear predominantly vacant and undeveloped with roadways and streets depicted nearby, followed by commercial and residential development. 6.3 Other Historical Sources Other historical sources are referenced in the ASTM E1527 practice as any source or sources other than the standard historical sources referenced in the practice that are credible to a reasonable person and that identify past uses of a subject property. This category includes, but is not limited to miscellaneous maps and directories, newspaper archives, internet sites, community organizations, local libraries, historical societies, current owners or occupants of neighboring properties, or records in the files and/or personal knowledge of the property owner and/or occupants. No historical sources other than the standard sources described above were deemed necessary and useful to assist in identifying recognized environmental conditions. 6.4 Summary Relative to Environmental Concerns No recognized environmental conditions were noted in connection with the historical resources reviewed. In addition, historical resources related to the adjoining properties and properties in the vicinity of the Site did not reveal recognized environmental conditions to the Site. Phase I Environmental Site Assessment March 12, 2021 Citrus and Summit, Fontana, California Page 16 of 26 7.0 SITE RECONAISSANCE The objective of the Site reconnaissance is to obtain information indicating the likelihood of identifying recognized environmental conditions in connection with a subject property. The Site visit for our assessment was completed on February 17, 2021, by Daniel Weis. We were unaccompanied during the reconnaissance. 7.1 Methodology and Limiting Conditions The Site reconnaissance consisted of observing the Site on foot via various transects and walking publicly accessible areas surrounding the Site. No significant limiting conditions of the Site inspection were noted. Select photographs of the Site obtained during the Site reconnaissance are included in Appendix C. 7.2 Current General Site and Vicinity Characteristics The Site and the surrounding vicinity are situated in the City of Fontana that consists primarily of residential properties, vacant land, and public roadways. The Site is currently two vacant and undeveloped lots. The current use of the Site and adjoining properties are not ones that are indicative of the use, treatment, storage disposal or generation of hazardous substances or petroleum products that may have significantly impacted the Site. 7.3 Indications of Past Site and Vicinity Uses There are no material differences between the current and past uses of the Site, adjoining properties and the surrounding area Site that were visually and/or physically observed during the Site reconnaissance that pertain to recognized environmental conditions. 7.4 Site-Specific Observations We examined visible and accessible areas of the Site for the features and conditions noted in the table below. Feature or Condition Details General Description of Structures There are no habitable structures present at the Site. Remnants of what appeared to be former structures are present on the eastern parcel and consist of concrete slabs and some stone walls and other features. Indicators of various subsurface utility systems were also observed. Drains and Sumps None observed. Heating/Cooling Systems None observed. Potable Water Supply Fontana Water Company. Roads None observed. Citrus Avenue bisects the Site parcels north to south, while Summit Avenue borders the southern portion of the Site. Septic Systems / Sewage Disposal System City of Fontana. Possible former septic at the eastern parcel. Wastewater and Stormwater Discharges None observed. Phase I Environmental Site Assessment March 12, 2021 Citrus and Summit, Fontana, California Page 17 of 26 Feature or Condition Details Wells None observed. Possible former wells at the eastern parcel. Drums None observed. Electrical or Hydraulic Equipment Known to Contain PCBs or Likely to Contain PCBs None observed. Hazardous Substances and Petroleum Products in Connection with Identified Uses None observed. Hazardous Substance and Petroleum Products Not Necessarily in Connection With Identified Uses None observed. Odors None noted. Pits, Ponds or Lagoons None observed. Pools of Liquid None observed. Solid Waste (Including Fill Material) Miscellaneous trash and debris was observed at the Site. Such materials included automobile tires, plastic buckets, concrete rubble, rebar, a mattress, wooden pallets and miscellaneous paper and plastic products. Small soil piles were also observed in some areas. No staining or other suspect conditions were noted. There also appears to be fill material placed on the eastern parcel as indicated by a substantial amount of rock and cobble mixed with soil. It is possible that such fill material was derived from the grading and development of neighboring residential tracts. No staining or other suspect conditions were noted. Similar to potential former agricultural soils, if the client desires a higher level of confidence regarding the environmental quality of such soil, sampling and analysis can be conducted. Stained Soil or Pavement None observed. Stains or Corrosion None observed. Chemical Storage Tanks None observed. Stressed Vegetation None observed. Unidentified Substance Containers None observed. 7.5 Summary Relative to Environmental Concerns No recognized environmental conditions were noted in connection with the current use of the Site during the Site reconnaissance. In addition, no current uses of the adjoining properties or properties in the surrounding area that were visually and/or physically observed during the Site reconnaissance were noted as recognized environmental conditions to the Site. Phase I Environmental Site Assessment March 12, 2021 Citrus and Summit, Fontana, California Page 18 of 26 8.0 INTERVIEWS No designated Site owner representatives or Key Site Managers were identified or available for an interview during the completion of this assessment. Given the additional information obtained during the preparation of this assessment, this is not considered to be a data gap of significance. However, if the Site owners and/or Key Site Managers are available to be interviewed in the future, any relevant information obtained should be incorporated in to the overall assessment of the Site. 8.1 Site Owner As stated above, the Site owners were not interviewed during the completion of this assessment. 8.2 Key Site Manager As stated above, the Key Site Managers were not interviewed during the completion of this assessment. 8.3 Current Occupants The Site is vacant with no known occupants. 8.4 Local Government Official During the preparation of this assessment, public records clerks from the State of California and San Bernardino County were contacted by our firm regarding the Site. Agency representatives indicated that public records requests should be conducted in order to obtain information known by the said agencies regarding the Site. Public records requests were completed by our firm as described in Section 5.3. 8.5 Other Parties Interviews with other persons were not conducted during the preparation of this assessment. As stated in the ASTM E1527 practice, interviews with past owners, operators, and occupants of a subject property who are likely to have material information regarding the potential for contamination at a given property shall be conducted to the extent that they have been identified and that the information likely to be obtained is not duplicative of information already obtained from other sources. Interviews with persons with past association with the Site were not deemed warranted during the completion of this assessment. 8.6 Summary Relative to Environmental Concerns No recognized environmental conditions were noted in connection with the interviews completed during the assessment. Phase I Environmental Site Assessment March 12, 2021 Citrus and Summit, Fontana, California Page 19 of 26 9.0 ADDITIONAL SERVICES – NON-SCOPE ASTM CONSIDERATIONS Several non-scope ASTM considerations are referenced in the ASTM E1527 practice that a user of a report may wish to evaluate. Listed considerations in the practice include asbestos-containing building materials, biological agents, cultural and historic resources, ecological resources, endangered species, health and safety, indoor air quality (unrelated to releases of hazardous substances or petroleum products into the environment), industrial hygiene, lead-based paint, lead in drinking water, mold, radon, regulatory compliance and wetlands. No implication is intended by the practice as to the relative importance of inquiry into such non-scope considerations, and the list of considerations is not intended to be all-inclusive. An evaluation of one or more of the non-scope considerations was not requested of our firm as part of the scope of services for the assessment. Therefore, no findings, opinions and conclusions of this assessment are based on said non-scope ASTM considerations. Phase I Environmental Site Assessment March 12, 2021 Citrus and Summit, Fontana, California Page 20 of 26 10.0 FINDINGS AND OPINIONS No features and/or conditions indicating the presence or likely presence of hazardous substances and/or petroleum products at the Site that are considered to have the potential to adversely impact the Site were identified during the completion of this assessment. Phase I Environmental Site Assessment March 12, 2021 Citrus and Summit, Fontana, California Page 21 of 26 11.0 CONCLUSIONS AND RECOMMENDATIONS We have performed a Phase I Environmental Site Assessment in conformance with the scope and limitations of ASTM International Practice E1527 of the Citrus and Summit property identified by San Bernardino County APNs 0239-141-30-0000 and 1107-262-37-0000, in the City of Fontana, San Bernardino County, California. Any exceptions to, or deletions from, this practice are described in Section 1.5 of this report. This assessment has revealed no evidence of recognized environmental conditions, controlled recognized environmental conditions or historical recognized environmental conditions in connection with the Site. Phase I Environmental Site Assessment March 12, 2021 Citrus and Summit, Fontana, California Page 22 of 26 12.0 ENVIRONMENTAL PROFESSIONAL STATEMENT I declare that, to the best of my professional knowledge and belief, I meet the definition of environmental professional as defined in Section 312.10 of 40 CFR. I have the specific qualifications based on education, training, and experience to assess a property of the nature, history, and setting of the Site. I have developed and performed the all appropriate inquiries in conformance with the standards and practices set forth in 40 CFR Part 312. Qualifications of personnel involved with the completion of this report are included in Appendix D. ________________________ Daniel Weis, R.E.H.S. Environmental Manager Phase I Environmental Site Assessment March 12, 2021 Citrus and Summit, Fontana, California Page 23 of 26 13.0 ASSUMPTIONS No Phase I ESA effort can eliminate uncertainty regarding the potential for recognized environmental conditions to exist in connection with a given property. Performance of the ASTM E1527 practice may reduce such uncertainty but in no way should the findings and report be misconstrued as insurance or a guarantee regarding the potential for recognized environmental conditions in connection with a given property. The ASTM E1527 practice recognizes reasonable limits of time and cost relative to the completion of a Phase I ESA. During the completion of this ESA, our firm relied on certain information obtained from secondary sources, including but not limited to the user of the report, government agencies, historical research business entities, environmental databases, and interviews with one or more persons. The sources obtained and/or consulted are assumed to be reliable. However, our firm cannot warranty or guarantee that the information provided by these other sources is wholly accurate or complete. Our firm is not responsible for any misrepresentations or false statements that may be provided by others or the lack of pertinent/relevant information that should have been provided/disclosed by others and we assume no responsibility for any consequence as a result of such omissions or withheld information. Accuracy and completeness of records varies among information sources, including from governmental agencies. As a result, there is a possibility that even with the proper application of the methodologies presented in ASTM E1527, conditions may exist that could not be identified within the scope of this assessment or which were not reasonably identifiable from the available information. In addition, any responses received from Federal, State, Tribal, and local regulatory agency secondary sources of information after the issuance of this report may change certain findings and conclusions of this report. Estimations and opinions regarding the potential for off-Site properties to adversely impact a given subject property is one of the key components of a Phase I ESA. In most cases, recent property-specific or adjacent-property specific measured groundwater data or other hydrogeological information is not reasonably ascertainable. In the absence of such data, reasonable assumptions regarding the depth and flow of groundwater are made based on various sources including comparisons to surface elevations, land topography and available hydrogeological on the State of California Geotracker database. In addition, estimations and opinions regarding potential impacts from off-Site locations may be based on certain assumptions that a hazardous substance or petroleum product may not migrate laterally within unsaturated soil for a substantial distance and that contaminants that have reached saturated soil and groundwater may attenuate over time and/or may decrease in concentration relative to distance from its source. While any interpretations presented herein may be effective in reducing uncertainty regarding potential impacts to a subject property from off-Site locations, in no way should the findings and report be misconstrued as insurance or a guarantee regarding the potential for such impacts to occur. Greater certainty regarding subsurface conditions at a given property can only be achieved by way of a subsurface sampling effort of one or more media. Phase I Environmental Site Assessment March 12, 2021 Citrus and Summit, Fontana, California Page 24 of 26 14.0 DEFINITIONS Definitions of key terminology relevant to the ASTM E1527 practice are presented below. Recognized Environmental Condition - The presence or likely presence of any hazardous substances or petroleum products in, on, or at a property: (1) due to any release to the environment; (2) under conditions indicative of a release to the environment; or (3) under conditions that pose a material threat of a future release to the environment. Controlled Recognized Environmental Condition - A recognized environmental condition resulting from a past release of hazardous substances or petroleum products that has been addressed to the satisfaction of the applicable regulatory authority (for example, as evidenced by the issuance of a no further action letter or equivalent, or meeting risk-based criteria established by regulatory authority), with hazardous substances or petroleum products allowed to remain in place subject to the implementation of required controls (for example, property use restrictions, activity and use limitations, institutional controls, or engineering controls). Data Failure - A failure to achieve the historical research objectives as outlined in the ASTM E1527 practice even after reviewing the standard historical sources that are reasonably ascertainable and likely to be useful. Data failure is one type of data gap. Data Gap - A lack of or inability to obtain information required by this practice despite good faith efforts by the environmental professional to gather such information. Data gaps may result from incompleteness in any of the activities required by the ASTM E1527 practice, including, but not limited to site reconnaissance (for example, an inability to conduct the site visit), and interviews (for example, an inability to interview the key site manager, regulatory officials, etc.). Data gaps are only considered to be significant if they affect the ability of the environmental professional to identify recognized environmental conditions. De Minimis Condition - A condition that generally does not present a threat to human health or the environment and that generally would not be the subject of an enforcement action if brought to the attention of appropriate governmental agencies. Conditions determined to be de minimis conditions are not recognized environmental conditions nor controlled recognized environmental conditions. Environment - (A) the navigable waters, the waters of the contiguous zone, and the ocean waters of which the natural resources are under the exclusive management authority of the United States under the Magnuson-Stevens Fishery Conservation and Management Act [16 U.S.C. §§ 1801 et seq.], and (B) any other surface water, groundwater, drinking water supply, land surface or subsurface strata, or ambient air within the United States or under the jurisdiction of the United States. Good Faith - The absence of any intention to seek an unfair advantage or to defraud another party; an honest and sincere intention to fulfill one’s obligations in the conduct or transaction concerned. Hazardous Substance - Includes hazardous substances designated under section 311 of the Clean Water Act (CWA) or Section 102 of CERCLA, any toxic pollutant listed under Section 307(a) of the CWA, any waste that has been listed as a RCRA hazardous waste or possesses a RCRA hazardous waste characteristic, any substance that is identified as a hazardous pollutant under Section 112 of the Clean Air Act (CAA), and any imminently hazardous chemical that EPA has taken action pursuant to Section 7 of the Toxic Substances Control Act (TSCA). Historical Recognized Environmental Condition - A past release of any hazardous substances or petroleum products that has been addressed to the satisfaction of the applicable regulatory authority or Phase I Environmental Site Assessment March 12, 2021 Citrus and Summit, Fontana, California Page 25 of 26 meeting unrestricted use criteria established by a regulatory authority, without subjecting the property in question to any required controls (for example, property use restrictions, activity and use limitations, institutional controls, or engineering controls). Petroleum Exclusion – While the definition of a CERCLA hazardous substance specifically excludes petroleum products and crude oil, the EPA has determined that the petroleum exclusion applies to petroleum products such as gasoline and other fuels containing lead, benzene or other hazardous substances that are normally added during the refining process. Notwithstanding the existence of the petroleum exclusion, petroleum products are included within the scope of the ASTM E1527 practice for multiple reasons. Petroleum products have historically been widely used at commercial properties. In addition, other federal and state laws may impose liability for releases or spills of petroleum products. Reasonably Ascertainable Information - Information that is (1) publicly available, (2) obtainable from its source within reasonable time and cost constraints and (3) practically reviewable. Release or Threatened Release - Spilling, leaking, pumping, pouring, emitting, emptying, discharging, injecting, escaping, leaching, dumping or disposing into the environment (including the abandonment or discarding of barrels, containers and other closed receptacles containing any hazardous substance, or pollutant or contaminant). Phase I Environmental Site Assessment March 12, 2021 Citrus and Summit, Fontana, California Page 26 of 26 15.0 REFERENCES Sources of information consulted during the completion of our Phase I ESA are noted in the sections below. 15.1 Documents, Plans and Reports • All Appropriate Inquiry” as necessary to satisfy the defenses available under 42 U.S.C. §§ 9607(b)(3), 9607(r)(1), and 9607(q), relying on definitions provided at 42 U.S.C. §§ 9601(35)(B); and as further explained in 40 CFR §§ 312.1 – 312.31. • ASTM International, "Standard Practice for Environmental Site Assessments: Phase I Environmental Site Assessment Process," ASTM Designation E 1527-13, Published November 2013. • California Geological Survey, 2002, California Geomorphic Provinces Note 36, Electronic Copy, Revised December. • California State Water Resources Control Board, Water Quality Control Plan for the Santa Ana River Basin (8), California, Published 2008. • ERIS Aerial Photographs Report dated February 18, 2021. • ERIS Database Report dated February 15, 2021. • ERIS Topographic Maps dated February 14, 2021. • USGS topographic map, Devore, California Quadrangle (2018). 15.2 Personal Communications • Public Records Clerks – State of California and County of San Bernardino 15.3 Agencies Consulted • California Department of Conservation, Geologic Energy Management Division (CalGEM) • California Department of Toxic Substances Control • California State Water Resources Control Board • County of San Bernardino • United States EPA FIGURES FIGURE 1 VICINITY MAP Prepared by: Weis Environmental 1938 Kellogg Avenue, Suite 116 Carlsbad, CA 92008 Figure 1 -Vicinity Map Citrus and Summit Fontana, California SITE FIGURE 2 SITE PLAN Prepared by: Weis Environmental 1938 Kellogg Avenue, Suite 116 Carlsbad, CA 92008 Figure 2 -Site Plan Citrus and Summit Fontana, California Vacant Land ResidentialVacant Land SITE Vacant Land Currently Residential Vacant Land Commercial Residential Vacant Land School ResidentialResidentialCitrus AvenueMessina Street Summit Avenue ResidentialResidential SITE Soriano WayFlorintineAvenueBella WayDoran LaneBertiniWay Residential ResidentialCurrently Residential FIGURE 3 TOPOGRAPHIC MAP Prepared by: Weis Environmental 1938 Kellogg Avenue, Suite 116 Carlsbad, CA 92008 Figure 3 -Topographic Map Citrus and Summit Fontana, California SITE APPENDICES APPENDIX A REGULATORY DATABASE REPORT Project Property:Citrus and Summit Citrus and Summit Fontana CA Project No: Report Type:Database Report Order No: 21021400014 Requested by:Weis Environmental, LLC Date Completed: February 15, 2021 2 erisinfo.com | Environmental Risk Information Services Order No: 21021400014 h-Table of Contents Notice:IMPORTANT LIMITATIONS and YOUR LIABILITY Reliance on information in Report:This report DOES NOT replace a full Phase I Environmental Site Assessment but is solely intended to be used as database review of environmental records. License for use of information in Report:No page of this report can be used without this cover page, this notice and the project property identifier. The information in Report(s) may not be modified or re-sold. Your Liability for misuse:Using this Service and/or its reports in a manner contrary to this Notice or your agreement will be in breach of copyright and contract and ERIS may obtain damages for such mis-use, including damages caused to third parties, and gives ERIS the right to terminate your account, rescind your license to any previous reports and to bar you from future use of the Service. No warranty of Accuracy or Liability for ERIS:The information contained in this report has been produced by ERIS Information Inc. ("ERIS") using various sources of information, including information provided by Federal and State government departments. The report applies only to the address and up to the date specified on the cover of this report, and any alterations or deviation from this description will require a new report. This report and the data contained herein does not purport to be and does not constitute a guarantee of the accuracy of the information contained herein and does not constitute a legal opinion nor medical advice. Although ERIS has endeavored to present you with information that is accurate, ERIS disclaims, any and all liability for any errors, omissions, or inaccuracies in such information and data, whether attributable to inadvertence, negligence or otherwise, and for any consequences arising therefrom. Liability on the part of ERIS is limited to the monetary value paid for this report. Trademark and Copyright:You may not use the ERIS trademarks or attribute any work to ERIS other than as outlined above. This Service and Report (s) are protected by copyright owned by ERIS Information Inc. Copyright in data used in the Service or Report(s) (the "Data") is owned by ERIS or its licensors. The Service, Report(s) and Data may not be copied or reproduced in whole or in any substantial part without prior written consent of ERIS. Table of Contents Table of Contents...........................................................................................2 Executive Summary........................................................................................3 Executive Summary: Report Summary.......................................................................................................................4 Executive Summary: Site Report Summary - Project Property...................................................................................8 Executive Summary: Site Report Summary - Surrounding Properties........................................................................9 Executive Summary: Summary by Data Source.......................................................................................................11 Map...............................................................................................................14 Aerial.............................................................................................................17 Topographic Map..........................................................................................18 Detail Report.................................................................................................19 Unplottable Summary...................................................................................34 Unplottable Report........................................................................................35 Appendix: Database Descriptions.................................................................45 Definitions.....................................................................................................57 3 erisinfo.com | Environmental Risk Information Services Order No: 21021400014 h-Executive Summary Property Information: Project Property:Citrus and Summit Citrus and Summit Fontana CA Project No: Coordinates: Latitude:34.15134897 Longitude:-117.45344766 UTM Northing:3,779,030.32 UTM Easting:458,199.34 UTM Zone:11S Elevation:1,653 FT Order Information: Order No:21021400014 Date Requested:February 14, 2021 Requested by:Weis Environmental, LLC Report Type:Database Report Historicals/Products: Aerial Photographs Historical Aerials (Boundaries) ERIS Xplorer ERIS Xplorer Excel Add-On Excel Add-On Topographic Map Topographic Maps Executive Summary 4 erisinfo.com | Environmental Risk Information Services Order No: 21021400014 h-Executive Summary: Report Summary Database Searched Search Radius Project Property Within 0.12mi 0.125mi to 0.25mi 0.25mi to 0.50mi 0.50mi to 1.00mi Total Standard Environmental Records Federal rr-FRP-aa Y 0.25 0 0 0 -- 0 rr-NPL-aa Y 1 0 0 0 0 0 0 rr-PROPOSED NPL-aa Y 1 0 0 0 0 0 0 rr-DELETED NPL-aa Y 0.5 0 0 0 0 - 0 rr-SEMS-aa Y 0.5 0 0 0 0 - 0 rr-SEMS ARCHIVE-aa Y 0.5 0 0 0 0 - 0 rr-ODI-aa Y 0.5 0 0 0 0 - 0 rr-IODI-aa Y 0.5 0 0 0 0 - 0 rr-CERCLIS-aa Y 0.5 0 0 0 0 - 0 rr-CERCLIS NFRAP-aa Y 0.5 0 0 0 0 - 0 rr-CERCLIS LIENS-aa Y PO 0 ---- 0 rr-RCRA CORRACTS-aa Y 1 0 0 0 0 0 0 rr-RCRA TSD-aa Y 0.5 0 0 0 0 - 0 rr-RCRA LQG-aa Y 0.25 0 0 0 -- 0 rr-RCRA SQG-aa Y 0.25 0 0 0 -- 0 rr-RCRA VSQG-aa Y 0.25 0 0 0 -- 0 rr-RCRA NON GEN-aa Y 0.25 0 0 0 -- 0 rr-FED ENG-aa Y 0.5 0 0 0 0 - 0 rr-FED INST-aa Y 0.5 0 0 0 0 - 0 rr-ERNS 1982 TO 1986-aa Y PO 0 ---- 0 rr-ERNS 1987 TO 1989-aa Y PO 0 ---- 0 rr-ERNS-aa Y PO 0 ---- 0 rr-FED BROWNFIELDS-aa Y 0.5 0 0 0 0 - 0 rr-FEMA UST-aa Y 0.25 0 0 0 -- 0 rr-REFN-aa Y 0.25 0 0 0 -- 0 rr-BULK TERMINAL-aa Y 0.25 0 0 0 -- 0 rr-SEMS LIEN-aa Y PO 0 ---- 0 FRP NPL PROPOSED NPL DELETED NPL SEMS SEMS ARCHIVE ODI IODI CERCLIS CERCLIS NFRAP CERCLIS LIENS RCRA CORRACTS RCRA TSD RCRA LQG RCRA SQG RCRA VSQG RCRA NON GEN FED ENG FED INST ERNS 1982 TO 1986 ERNS 1987 TO 1989 ERNS FED BROWNFIELDS FEMA UST REFN BULK TERMINAL SEMS LIEN Executive Summary: Report Summary 5 erisinfo.com | Environmental Risk Information Services Order No: 21021400014 Database Searched Search Radius Project Property Within 0.12mi 0.125mi to 0.25mi 0.25mi to 0.50mi 0.50mi to 1.00mi Total rr-SUPERFUND ROD-aa Y 1 0 0 0 0 0 0 State rr-RESPONSE-aa Y 1 0 0 0 0 0 0 rr-ENVIROSTOR-aa Y 1 0 1 0 1 6 8 rr-DELISTED ENVS-aa Y 1 0 0 0 0 0 0 rr-SWF/LF-aa Y 0.5 0 0 0 0 - 0 rr-HWP-aa Y 1 0 0 0 0 0 0 rr-SWAT-aa Y 0.5 0 0 0 0 - 0 rr-LDS-aa Y 0.5 0 0 0 0 - 0 rr-LUST-aa Y 0.5 0 0 0 0 - 0 rr-DELISTED LST-aa Y 0.5 0 0 0 0 - 0 rr-SWRCB SWF-aa Y 0.5 0 0 0 0 - 0 rr-UST-aa Y 0.25 0 0 0 -- 0 rr-UST CLOSURE-aa Y 0.5 0 0 0 0 - 0 rr-HHSS-aa Y 0.25 0 0 0 -- 0 rr-AST-aa Y 0.25 0 0 0 -- 0 rr-AST SWRCB-aa Y 0.25 0 0 0 -- 0 rr-TANK OIL GAS-aa Y 0.25 0 0 0 -- 0 rr-DELISTED TNK-aa Y 0.25 0 0 0 -- 0 rr-CERS TANK-aa Y 0.25 0 0 0 -- 0 rr-LUR-aa Y 0.5 0 0 0 0 - 0 rr-HLUR-aa Y 0.5 0 0 0 0 - 0 rr-DEED-aa Y 0.5 0 0 0 0 - 0 rr-VCP-aa Y 0.5 0 0 0 0 - 0 rr-CLEANUP SITES-aa Y 0.5 0 0 0 0 - 0 rr-DELISTED COUNTY-aa Y 0.25 0 0 0 -- 0 rr-DELISTED CTNK-aa Y 0.25 0 0 0 -- 0 rr-HIST TANK-aa Y 0.25 0 0 0 -- 0 Tribal rr-INDIAN LUST-aa Y 0.5 0 0 0 0 - 0 rr-INDIAN UST-aa Y 0.25 0 0 0 -- 0 rr-DELISTED ILST-aa Y 0.5 0 0 0 0 - 0 rr-DELISTED IUST-aa Y 0.25 0 0 0 -- 0 County SUPERFUND ROD RESPONSE ENVIROSTOR DELISTED ENVS SWF/LF HWP SWAT LDS LUST DELISTED LST SWRCB SWF UST UST CLOSURE HHSS AST AST SWRCB TANK OIL GAS DELISTED TNK CERS TANK LUR HLUR DEED VCP CLEANUP SITES DELISTED COUNTY DELISTED CTNK HIST TANK INDIAN LUST INDIAN UST DELISTED ILST DELISTED IUST 6 erisinfo.com | Environmental Risk Information Services Order No: 21021400014 Database Searched Search Radius Project Property Within 0.12mi 0.125mi to 0.25mi 0.25mi to 0.50mi 0.50mi to 1.00mi Total rr-SANBERN CUPA-aa Y 0.25 0 0 0 -- 0 Additional Environmental Records Federal rr-PFAS NPL-aa Y 0.5 0 0 0 0 - 0 rr-FINDS/FRS-aa Y PO 0 ---- 0 rr-TRIS-aa Y PO 0 ---- 0 rr-PFAS TRI-aa Y 0.5 0 0 0 0 - 0 rr-PFAS WATER-aa Y 0.5 0 0 0 0 - 0 rr-HMIRS-aa Y 0.125 0 0 --- 0 rr-NCDL-aa Y 0.125 0 0 --- 0 rr-TSCA-aa Y 0.125 0 0 --- 0 rr-HIST TSCA-aa Y 0.125 0 0 --- 0 rr-FTTS ADMIN-aa Y PO 0 ---- 0 rr-FTTS INSP-aa Y PO 0 ---- 0 rr-PRP-aa Y PO 0 ---- 0 rr-SCRD DRYCLEANER-aa Y 0.5 0 0 0 0 - 0 rr-ICIS-aa Y PO 0 ---- 0 rr-FED DRYCLEANERS-aa Y 0.25 0 0 0 -- 0 rr-DELISTED FED DRY-aa Y 0.25 0 0 0 -- 0 rr-FUDS-aa Y 1 0 0 0 0 0 0 rr-PIPELINE INCIDENT-aa Y PO 0 ---- 0 rr-MLTS-aa Y PO 0 ---- 0 rr-HIST MLTS-aa Y PO 0 ---- 0 rr-MINES-aa Y 0.25 0 0 0 -- 0 rr-ALT FUELS-aa Y 0.25 0 0 0 -- 0 rr-SSTS-aa Y 0.25 0 0 0 -- 0 rr-PCB-aa Y 0.5 0 0 0 0 - 0 State rr-DRYCLEANERS-aa Y 0.25 0 0 0 -- 0 rr-DELISTED DRYCLEANERS-aa Y 0.25 0 0 0 -- 0 rr-DRYC GRANT-aa Y 0.25 0 0 0 -- 0 rr-PFAS-aa Y 0.5 0 0 0 0 - 0 rr-PFAS GW-aa Y 0.5 0 0 0 0 - 0 rr-HWSS CLEANUP-aa Y 0.5 0 0 0 0 - 0 rr-DTSC HWF-aa Y 0.5 0 0 0 0 - 0 SANBERN CUPA PFAS NPL FINDS/FRS TRIS PFAS TRI PFAS WATER HMIRS NCDL TSCA HIST TSCA FTTS ADMIN FTTS INSP PRP SCRD DRYCLEANER ICIS FED DRYCLEANERS DELISTED FED DRY FUDS PIPELINE INCIDENT MLTS HIST MLTS MINES ALT FUELS SSTS PCB DRYCLEANERS DELISTED DRYCLEANERS DRYC GRANT PFAS PFAS GW HWSS CLEANUP DTSC HWF 7 erisinfo.com | Environmental Risk Information Services Order No: 21021400014 Database Searched Search Radius Project Property Within 0.12mi 0.125mi to 0.25mi 0.25mi to 0.50mi 0.50mi to 1.00mi Total rr-INSP COMP ENF-aa Y 1 0 0 0 0 0 0 rr-SCH-aa Y 1 0 0 0 1 5 6 rr-CHMIRS-aa Y PO 0 ---- 0 rr-HAZNET-aa Y PO 0 1 --- 1 rr-HIST CHMIRS-aa Y PO 0 ---- 0 rr-HIST MANIFEST-aa Y PO 0 ---- 0 rr-HIST CORTESE-aa Y 0.5 0 0 0 0 - 0 rr-CDO/CAO-aa Y 0.5 0 0 0 0 - 0 rr-CERS HAZ-aa Y 0.125 0 0 --- 0 rr-DELISTED HAZ-aa Y 0.5 0 0 0 0 - 0 rr-GEOTRACKER-aa Y 0.125 0 0 --- 0 rr-WASTE DISCHG-aa Y 0.25 0 0 0 -- 0 rr-EMISSIONS-aa Y 0.25 0 0 0 -- 0 rr-CDL-aa Y 0.125 0 5 --- 5 Tribal No Tribal additional environmental record sources available for this State. County No County additional environmental databases were selected to be included in the search. Total:0 7 0 2 11 20 * PO – Property Only * 'Property and adjoining properties' database search radii are set at 0.25 miles. INSP COMP ENF SCH CHMIRS HAZNET HIST CHMIRS HIST MANIFEST HIST CORTESE CDO/CAO CERS HAZ DELISTED HAZ GEOTRACKER WASTE DISCHG EMISSIONS CDL 8 erisinfo.com | Environmental Risk Information Services Order No: 21021400014 h-Executive Summary: Site Report Summary - Project Property Map Key DB Company/Site Name Address Direction Distance (mi/ft) Elev Diff (ft) Page Number No records found in the selected databases for the project property. Executive Summary: Site Report Summary - Project Property 9 erisinfo.com | Environmental Risk Information Services Order No: 21021400014 h-Executive Summary: Site Report Summary - Surrounding Properties Map Key DB Company/Site Name Address Direction Distance (mi/ft) Elev Diff (ft) Page Number m1d dd-CDL-820111571-aa CITRUS AVE, NORTH OF SUMMIT FONTANA CA 92335 S 0.01 / 62.18 -11 p1p-19-820111571-x1x m1d dd-CDL-820114044-aa CITRUS AVE, NO OF SUMMIT AVE FONTANA CA 92335 S 0.01 / 62.18 -11 p1p-19-820114044-x1x m1d dd-CDL-820114970-aa ON CITRUS AVENUE (NORTH OF SUMMIT) FONTANA CA 92335 S 0.01 / 62.18 -11 p1p-19-820114970-x1x m1d dd-CDL-820117109-aa CITRUS AVE, NO OF SUMIT AVE FONTANA CA 92335 S 0.01 / 62.18 -11 p1p-19-820117109-x1x m1d dd-CDL-820117716-aa CITRUS AVE, NO OF SUMMIT AVE FONTANA CA S 0.01 / 62.18 -11 p1p-19-820117716-x1x m1d dd-ENVIROSTOR-820298127-aa SIERRA LAKES ELEMENTARY SCHOOL CITRUS AVENUE/SUMMIT AVENUE FONTANA CA 92337 S 0.01 / 62.18 -11 p1p-20-820298127-x1x Estor/EPA ID | Cleanup Status: 36010002 | INACTIVE - WITHDRAWN AS OF 2/20/2013 m1d dd-HAZNET-858340592-aa STRATHAM CITRUS INC. CORNER OF CITRUS AVE. & SUMMIT AVE FONTANA CA 92336 S 0.01 / 62.18 -11 p1p-20-858340592-x1x m2d dd-SCH-820263909-aa MIDDLE SCHOOL #10 CITRUS AVENUE/THREE MILE ROAD FONTANA CA 92336 N 0.37 / 1,971.70 60 p1p-21-820263909-x1x Estor/EPA ID | Cleanup Status: 36650021 | NO ACTION REQUIRED AS OF 4/26/2005 m2d dd-ENVIROSTOR-820294675-aa MIDDLE SCHOOL #10 CITRUS AVENUE/THREE MILE ROAD FONTANA CA 92336 N 0.37 / 1,971.70 60 p1p-22-820294675-x1x Estor/EPA ID | Cleanup Status: 36650021 | NO ACTION REQUIRED AS OF 4/26/2005 m3d dd-SCH-820264971-aa ELEMENTARY SCHOOL NO. 33 CURTIS AVENUE/CATAWBA AVENUE FONTANA CA 92336 SSW 0.52 / 2,770.80 -86 p1p-22-820264971-x1x Estor/EPA ID | Cleanup Status: 36650020 | NO ACTION REQUIRED AS OF 11/8/2004 m3d dd-ENVIROSTOR-820294745-aa ELEMENTARY SCHOOL NO. 33 CURTIS AVENUE/CATAWBA AVENUE FONTANA CA 92336 SSW 0.52 / 2,770.80 -86 p1p-23-820294745-x1x Estor/EPA ID | Cleanup Status: 36650020 | NO ACTION REQUIRED AS OF 11/8/2004 m4d dd-SCH-820264236-aa ELEMENTARY SCHOOL # 34 SITE SUMMIT AVENUE/SIERRA AVENUE FONTANA CA 92336 E 0.53 / 2,772.51 27 p1p-24-820264236-x1x 19 19 19 19 19 20 20 21 22 22 23 24 1 1 1 1 1 1 1 2 2 3 3 4 CDL CDL CDL CDL CDL ENVIROSTOR HAZNET SCH ENVIROSTOR SCH ENVIROSTOR SCH Executive Summary: Site Report Summary - Surrounding Properties 10 erisinfo.com | Environmental Risk Information Services Order No: 21021400014 Map Key DB Company/Site Name Address Direction Distance (mi/ft) Elev Diff (ft) Page Number Estor/EPA ID | Cleanup Status: 60000375 | NO ACTION REQUIRED AS OF 8/10/2006 m5d dd-SCH-820263830-aa LYTLE CREEK HIGH SCHOOL NO. 4 ADDITION LYTLE CREEK ROAD/SUMMIT AVENUE FONTANA CA 92336 W 0.62 / 3,265.98 -53 p1p-24-820263830-x1x Estor/EPA ID | Cleanup Status: 36010066 | NO ACTION REQUIRED AS OF 11/29/2001 m5d dd-ENVIROSTOR-820300540-aa LYTLE CREEK HIGH SCHOOL NO. 4 LYTLE CREEK ROAD/SUMMIT AVENUE FONTANA CA 92336 W 0.62 / 3,265.98 -53 p1p-25-820300540-x1x Estor/EPA ID | Cleanup Status: 36010008 | NO FURTHER ACTION AS OF 6/27/2000 m5d dd-ENVIROSTOR-820300943-aa LYTLE CREEK HIGH SCHOOL NO. 4 ADDITION LYTLE CREEK ROAD/SUMMIT AVENUE FONTANA CA 92336 W 0.62 / 3,265.98 -53 p1p-27-820300943-x1x Estor/EPA ID | Cleanup Status: 36010066 | NO ACTION REQUIRED AS OF 11/29/2001 m6d dd-SCH-820263242-aa FALCON RIDGE ELEMENTARY SCHOOL LYTLE CREEK ROAD/TOSCANA LANE FONTANA CA 92336 WNW 0.67 / 3,563.25 -10 p1p-28-820263242-x1x Estor/EPA ID | Cleanup Status: 60000338 | NO ACTION REQUIRED AS OF 8/1/2006 m6d dd-ENVIROSTOR-820299336-aa FALCON RIDGE ELEMENTARY SCHOOL LYTLE CREEK ROAD/TOSCANA LANE FONTANA CA 92336 WNW 0.67 / 3,563.25 -10 p1p-29-820299336-x1x Estor/EPA ID | Cleanup Status: 60000338 | NO ACTION REQUIRED AS OF 8/1/2006 m7d dd-SCH-820263432-aa PROPOSED ELEMENTARY SCHOOL #35 LYTLE CREEK ROAD/THREE MILE ROAD FONTANA CA 92336 WNW 0.72 / 3,813.57 10 p1p-29-820263432-x1x Estor/EPA ID | Cleanup Status: 60000432 | NO FURTHER ACTION AS OF 2/26/2007 m7d dd-ENVIROSTOR-820300852-aa PROPOSED ELEMENTARY SCHOOL #35 LYTLE CREEK ROAD/THREE MILE ROAD FONTANA CA 92336 WNW 0.72 / 3,813.57 10 p1p-31-820300852-x1x Estor/EPA ID | Cleanup Status: 60000432 | NO FURTHER ACTION AS OF 2/26/2007 m8d dd-ENVIROSTOR-820295926-aa ELEMENTARY SCHOOL # 34 SITE SUMMIT AVENUE/SIERRA AVENUE FONTANA CA 92336 E 0.84 / 4,456.98 17 p1p-32-820295926-x1x Estor/EPA ID | Cleanup Status: 60000375 | NO ACTION REQUIRED AS OF 8/10/2006 24 25 27 28 29 29 31 32 5 5 5 6 6 7 7 8 SCH ENVIROSTOR ENVIROSTOR SCH ENVIROSTOR SCH ENVIROSTOR ENVIROSTOR 11 erisinfo.com | Environmental Risk Information Services Order No: 21021400014 h-Executive Summary: Summary by Data Source Standard State ENVIROSTOR - EnviroStor Database A search of the ENVIROSTOR database, dated Jan 13, 2021 has found that there are 8 ENVIROSTOR site(s) within approximately 1.00 miles of the project property. Equal/Higher Elevation Address Direction Distance (mi/ft)Map Key MIDDLE SCHOOL #10 CITRUS AVENUE/THREE MILE ROAD FONTANA CA 92336 N 0.37 / 1,971.70 m-2-820294675-a Estor/EPA ID | Cleanup Status: 36650021 | NO ACTION REQUIRED AS OF 4/26/2005 PROPOSED ELEMENTARY SCHOOL #35 LYTLE CREEK ROAD/THREE MILE ROAD FONTANA CA 92336 WNW 0.72 / 3,813.57 m-7-820300852-a Estor/EPA ID | Cleanup Status: 60000432 | NO FURTHER ACTION AS OF 2/26/2007 ELEMENTARY SCHOOL # 34 SITE SUMMIT AVENUE/SIERRA AVENUE FONTANA CA 92336 E 0.84 / 4,456.98 m-8-820295926-a Estor/EPA ID | Cleanup Status: 60000375 | NO ACTION REQUIRED AS OF 8/10/2006 Lower Elevation Address Direction Distance (mi/ft)Map Key SIERRA LAKES ELEMENTARY SCHOOL CITRUS AVENUE/SUMMIT AVENUE FONTANA CA 92337 S 0.01 / 62.18 m-1-820298127-a Estor/EPA ID | Cleanup Status: 36010002 | INACTIVE - WITHDRAWN AS OF 2/20/2013 ELEMENTARY SCHOOL NO. 33 CURTIS AVENUE/CATAWBA AVENUE FONTANA CA 92336 SSW 0.52 / 2,770.80 m-3-820294745-a Estor/EPA ID | Cleanup Status: 36650020 | NO ACTION REQUIRED AS OF 11/8/2004 LYTLE CREEK HIGH SCHOOL NO. 4 ADDITION LYTLE CREEK ROAD/SUMMIT AVENUE FONTANA CA 92336 W 0.62 / 3,265.98 m-5-820300943-a Estor/EPA ID | Cleanup Status: 36010066 | NO ACTION REQUIRED AS OF 11/29/2001 LYTLE CREEK HIGH SCHOOL NO. 4 LYTLE CREEK ROAD/SUMMIT AVENUE FONTANA CA 92336 W 0.62 / 3,265.98 m-5-820300540-a Estor/EPA ID | Cleanup Status: 36010008 | NO FURTHER ACTION AS OF 6/27/2000 FALCON RIDGE ELEMENTARY SCHOOL LYTLE CREEK ROAD/TOSCANA LANE FONTANA CA 92336 WNW 0.67 / 3,563.25 m-6-820299336-a Estor/EPA ID | Cleanup Status: 60000338 | NO ACTION REQUIRED AS OF 8/1/2006 Non Standard State 2 7 8 1 3 5 5 6 Executive Summary: Summary by Data Source 12 erisinfo.com | Environmental Risk Information Services Order No: 21021400014 SCH - School Property Evaluation Program Sites A search of the SCH database, dated Jan 13, 2021 has found that there are 6 SCH site(s) within approximately 1.00 miles of the project property. Equal/Higher Elevation Address Direction Distance (mi/ft)Map Key MIDDLE SCHOOL #10 CITRUS AVENUE/THREE MILE ROAD FONTANA CA 92336 N 0.37 / 1,971.70 m-2-820263909-a Estor/EPA ID | Cleanup Status: 36650021 | NO ACTION REQUIRED AS OF 4/26/2005 ELEMENTARY SCHOOL # 34 SITE SUMMIT AVENUE/SIERRA AVENUE FONTANA CA 92336 E 0.53 / 2,772.51 m-4-820264236-a Estor/EPA ID | Cleanup Status: 60000375 | NO ACTION REQUIRED AS OF 8/10/2006 PROPOSED ELEMENTARY SCHOOL #35 LYTLE CREEK ROAD/THREE MILE ROAD FONTANA CA 92336 WNW 0.72 / 3,813.57 m-7-820263432-a Estor/EPA ID | Cleanup Status: 60000432 | NO FURTHER ACTION AS OF 2/26/2007 Lower Elevation Address Direction Distance (mi/ft)Map Key ELEMENTARY SCHOOL NO. 33 CURTIS AVENUE/CATAWBA AVENUE FONTANA CA 92336 SSW 0.52 / 2,770.80 m-3-820264971-a Estor/EPA ID | Cleanup Status: 36650020 | NO ACTION REQUIRED AS OF 11/8/2004 LYTLE CREEK HIGH SCHOOL NO. 4 ADDITION LYTLE CREEK ROAD/SUMMIT AVENUE FONTANA CA 92336 W 0.62 / 3,265.98 m-5-820263830-a Estor/EPA ID | Cleanup Status: 36010066 | NO ACTION REQUIRED AS OF 11/29/2001 FALCON RIDGE ELEMENTARY SCHOOL LYTLE CREEK ROAD/TOSCANA LANE FONTANA CA 92336 WNW 0.67 / 3,563.25 m-6-820263242-a Estor/EPA ID | Cleanup Status: 60000338 | NO ACTION REQUIRED AS OF 8/1/2006 HAZNET - Hazardous Waste Manifest Data A search of the HAZNET database, dated Oct 24, 2016 has found that there are 1 HAZNET site(s) within approximately 0.02 miles of the project property. Lower Elevation Address Direction Distance (mi/ft)Map Key STRATHAM CITRUS INC. CORNER OF CITRUS AVE. & SUMMIT AVE FONTANA CA 92336 S 0.01 / 62.18 m-1-858340592-a CDL - Clandestine Drug Lab Sites A search of the CDL database, dated Jun 30, 2018 has found that there are 5 CDL site(s) within approximately 0.12 miles of the project property. Lower Elevation Address Direction Distance (mi/ft)Map Key CITRUS AVE, NO OF SUMIT AVE FONTANA CA 92335 S 0.01 / 62.18 m-1-820117109-a 2 4 7 3 5 6 1 1 13 erisinfo.com | Environmental Risk Information Services Order No: 21021400014 Lower Elevation Address Direction Distance (mi/ft)Map Key CITRUS AVE, NORTH OF SUMMIT FONTANA CA 92335 S 0.01 / 62.18 m-1-820111571-a CITRUS AVE, NO OF SUMMIT AVE FONTANA CA S 0.01 / 62.18 m-1-820117716-a CITRUS AVE, NO OF SUMMIT AVE FONTANA CA 92335 S 0.01 / 62.18 m-1-820114044-a ON CITRUS AVENUE (NORTH OF SUMMIT) FONTANA CA 92335 S 0.01 / 62.18 m-1-820114970-a 1 1 1 1 #* #*#*#*#*#*#*#*m4c m8cm5c(3)m1c(7) m3c(2) m6c(2) m7c(2) m2c(2)I-15 NI-15 SCA-210 ECA-210 W 117°26'W117°26'30"W117°27'W117°27'30"W117°28'W117°28'30"W 34°10'N34°10'N34°9'30"N34°9'30"N34°9'N34°9'N34°8'30"N34°8'30"N34°8'N34°8'N0.3 0 0.30.15 Miles Order Number: 21021400014 Map : 1.0 Mile Radius 1:20900 Address: Citrus and Summit, Fontana, CA Source: © 2016 ESRI © ERIS Information Inc. Project Property Buffer Outline #*Eris Sites with Higher Elevation ")Eris Sites with Same Elevation #*Eris Sites with Lower Elevation (Eris Sites with Unknown Elevation County Boundary Rails Major Highways Major Highways Ramps Major Roads Major Roads Ramps Secondary Roads Secondary Roads Ramps Local Roads and Ramps State Boundary National Priority List Sites National Wetland Indian Reserve Land 100 Year Flood Zone 500 Year Flood Zone FWS Special Designation Areas State Brownfield Sites State Brownfield Areas State Superfund Areas:Dept. of Defense State Superfund Areas:NPL WQARF Areas Federal Lands: Dept. of Defense (owned/administered areas) 4 85(3)1 (7) 3 (2) 6 (2) 7 (2) 2 (2) #* #*#*#*#*m4c m1c(7) m3c(2) m2c(2)Knox AveCitrus AveA u g u s ta Dr Curtis Ave Summit Ave Me dinah St 3 Mile Rd Parkside Way Vienna Ln Fan Palm St Semi nol eWa y E scalon Dr Los C o y o te s S t P a r k Ho use Dr Almaden D r M a gn o lia W a y Cypress AveJamie Ln Portenza Dr LaC o s t aAvenalPlDelamar DrEnders St Ve nt ana D r Eaglemon t D r Brewer Ln Maloof AveWilshire DrScharf AveP isaLnBasswood Ln Cooper AvePamplona St Iron Spring Ln N Peak Ln Square Top Ln Lost Horse DrCatawba AveSnowy Peak Ln Como WayRock Point Ln Syracuse L n Parma AveCo lonial D rPine Leaf AveNovara AveForest Oaks PlSugar Maple WayBald Eagle DrBig Pine DrLily Rock DrBirk d ale LnRimini Ln Marnie Pl Buck Point Ln Casa Gra nde Ave Landm a r k DrPark St EShoal C r k Park St S Nuaimi Ln Sicily Ln Coralwood PlRalph Way Red Spur CtLittle Shay DrM i r a V i s t a L n Yorba Linda Ln Muirfield Ln Big Ho rn P l Cleghorn CtMount Islip PlBaltray Way Monte re y P lBoca Raton WaySlowik Ct Toledo WayTierra LnMadrid WayMassa WayPadua WayWoodscent CtLoomis C tRiverwood LnHacienda CtShea CtCitrus AveSummit Ave 117°26'30"W117°27'W117°27'30"W 34°9'30"N34°9'30"N34°9'N34°9'N34°8'30"N34°8'30"N0.15 0 0.150.075 Miles Order Number: 21021400014 Map : 0.5 Mile Radius 1:11800 Address: Citrus and Summit, Fontana, CA Source: © 2016 ESRI © ERIS Information Inc. Project Property Buffer Outline #*Eris Sites with Higher Elevation ")Eris Sites with Same Elevation #*Eris Sites with Lower Elevation (Eris Sites with Unknown Elevation County Boundary Rails Major Highways Major Highways Ramps Major Roads Major Roads Ramps Secondary Roads Secondary Roads Ramps Local Roads and Ramps State Boundary National Priority List Sites National Wetland Indian Reserve Land 100 Year Flood Zone 500 Year Flood Zone FWS Special Designation Areas State Brownfield Sites State Brownfield Areas State Superfund Areas:Dept. of Defense State Superfund Areas:NPL WQARF Areas Federal Lands: Dept. of Defense (owned/administered areas) 4 1 (7) 3 (2) 2 (2) #*#*m1c(7) m2c(2)Citrus AveKnox Ave Augusta D r Summit Ave Parkside Way S em i n o l e W a y Ma gn o l ia W a y Jamie Ln AvenalPl Fan Palm St Enders St V e nt anaDr 3 Mile Rd Park House Dr WilshireDrScharf AveVienna Ln Pamplona St Basswood LnComo WayParma AveLinda Way Rock Point Ln Pine Leaf AveNovara AveIron Spring Ln Square Top Ln Rimini Ln Snowy Peak Ln Buck Point Ln Forest Oaks PlPark St EPark St S Nuaimi Ln Coralwood PlStrongwood Ln Park St WLittle Shay DrBig Pine DrBrentwood PlBig Ho rn P l Wardlow Pl Boca Raton WayMazzulli CtKate WayMantovaCtBirkdale LnPiazza Ln Oak Leaf LnToledo WayMadrid WayVercelli Ln A lta V istaWaySpainWayRiverwood LnPinehurst LnHartness CtPerdido Bay CtWorld Woods C t Summit AveParkside WayCitrus Ave117°27'W117°27'30"W 34°9'N34°9'N0.1 0 0.10.05 Miles Order Number: 21021400014 Map : 0.25 Mile Radius 1:7200 Address: Citrus and Summit, Fontana, CA Source: © 2016 ESRI © ERIS Information Inc. Project Property Buffer Outline #*Eris Sites with Higher Elevation ")Eris Sites with Same Elevation #*Eris Sites with Lower Elevation (Eris Sites with Unknown Elevation County Boundary Rails Major Highways Major Highways Ramps Major Roads Major Roads Ramps Secondary Roads Secondary Roads Ramps Local Roads and Ramps State Boundary National Priority List Sites National Wetland Indian Reserve Land 100 Year Flood Zone 500 Year Flood Zone FWS Special Designation Areas State Brownfield Sites State Brownfield Areas State Superfund Areas:Dept. of Defense State Superfund Areas:NPL WQARF Areas Federal Lands: Dept. of Defense (owned/administered areas) 1 (7) 2 (2) Source: Esri, Maxar, GeoEye, Earthstar Geographics, CNES/Airbus DS, USDA, USGS, AeroGRID, IGN, and the GIS User Community 117°27'W 34°9'N34°9'N250 0 250125 m Order Number: 21021400014Aerial 1:10000 Address: Citrus and Summit, Fontana, CA © ERIS Information Limited PartnershipSource: ESRI World Imagery Year: 2015 117°26'W117°26'30"W117°27'W117°27'30"W117°28'W117°28'30"W 34°10'30"N34°10'30"N34°10'N34°10'N34°9'30"N34°9'30"N34°9'N34°9'N34°8'30"N34°8'30"N34°8'N34°8'N0.35 0 0.350.175 Miles Order Number: 21021400014Topographic Map 1:24000 Address: Citrus and Summit, CA © ERIS Information Inc. Source: USGS Topographic Map Quadrangle(s): Fontana,CA; Devore,CA Year: 2015 19 erisinfo.com | Environmental Risk Information Services Order No: 21021400014 h-Detail Report Map Key Number of Records Direction Distance (mi/ft) Elev/Diff (ft) Site DB m-1-820111571-b 1 of 7 S 0.01 / 62.18 1,642.11 / -11 CITRUS AVE, NORTH OF SUMMIT FONTANA CA 92335 dd-CDL-820111571-bb p1p-820111571-y1y Clue:2001-03-162 Date:3/24/2001 County:SAN BERNARDINO Lab Type:A Lab Type Description:Abandoned Drug Lab Waste - location away from an actual illegal drug lab where drug lab waste and/or equipment were abandoned. m-1-820114044-b 2 of 7 S 0.01 / 62.18 1,642.11 / -11 CITRUS AVE, NO OF SUMMIT AVE FONTANA CA 92335 dd-CDL-820114044-bb p1p-820114044-y1y Clue:2001-04-038 Date:4/8/2001 County:SAN BERNARDINO Lab Type:A Lab Type Description:Abandoned Drug Lab Waste - location away from an actual illegal drug lab where drug lab waste and/or equipment were abandoned. m-1-820114970-b 3 of 7 S 0.01 / 62.18 1,642.11 / -11 ON CITRUS AVENUE (NORTH OF SUMMIT) FONTANA CA 92335 dd-CDL-820114970-bb p1p-820114970-y1y Clue:2002-02-095 Date:2/16/2002 County:SAN BERNARDINO Lab Type:A Lab Type Description:Abandoned Drug Lab Waste - location away from an actual illegal drug lab where drug lab waste and/or equipment were abandoned. m-1-820117109-b 4 of 7 S 0.01 / 62.18 1,642.11 / -11 CITRUS AVE, NO OF SUMIT AVE FONTANA CA 92335 dd-CDL-820117109-bb p1p-820117109-y1y Clue:2001-02-145 Date:2/22/2001 County:SAN BERNARDINO Lab Type:A Lab Type Description:Abandoned Drug Lab Waste - location away from an actual illegal drug lab where drug lab waste and/or equipment were abandoned. m-1-820117716-b 5 of 7 S 0.01 / 62.18 1,642.11 / -11 CITRUS AVE, NO OF SUMMIT AVE FONTANA CA dd-CDL-820117716-bb p1p-820117716-y1y Clue:2001-02-175 Date:2/28/2001 County:SAN BERNARDINO 1 1 1 1 1 CDL CDL CDL CDL CDL Detail Report 20 erisinfo.com | Environmental Risk Information Services Order No: 21021400014 Map Key Number of Records Direction Distance (mi/ft) Elev/Diff (ft) Site DB Lab Type:A Lab Type Description:Abandoned Drug Lab Waste - location away from an actual illegal drug lab where drug lab waste and/or equipment were abandoned. m-1-820298127-b 6 of 7 S 0.01 / 62.18 1,642.11 / -11 SIERRA LAKES ELEMENTARY SCHOOL CITRUS AVENUE/SUMMIT AVENUE FONTANA CA 92337 dd-ENVIROSTOR-820298127-bb p1p-820298127-y1y Estor/EPA ID:36010002 Assembly District:47 Site Code:404001, 404006 Senate District:20 Nat Priority List:NO Permit Renewal Lead: APN:NONE SPECIFIED Public Partici Spclst: Census Tract:6071002601 Project Manager: Site Type:SCHOOL County:SAN BERNARDINO Address Description:CITRUS AVENUE/SUMMIT AVENUE Latitude:34.05577 Office:SOUTHERN CALIFORNIA SCHOOLS & BROWNFIELDS OUTREACH Longitude:-117.45382 Special Program:Acres:10.4 ACRES Funding:SCHOOL DISTRICT Supervisor:WILLIAM BECKMAN Cleanup Status:INACTIVE - WITHDRAWN AS OF 2/20/2013 Cleanup Oversight Agencies:DTSC - SITE CLEANUP PROGRAM - LEAD AGENCY School District:FONTANA UNIFIED SCHOOL DISTRICT Past Use that Caused Contam:AGRICULTURAL - ROW CROPS Potential Media Affected:NO MEDIA AFFECTED Potential Contamin of Concern: NO CONTAMINANTS FOUND Site History: PEA completed with an NFA determination. Status:INACTIVE - WITHDRAWN A2 Program Type:SCHOOL EVALUATION CalEnviroScreen Score:71-75% Summary Link:http://www.envirostor.dtsc.ca.gov/public/profile_report?global_id=36010002 Completed Activities Title:Phase 1 Title Link: Area Name: Area Link: Sub Area: Sub Area Link: Document Type:Phase 1 Date Completed:12/22/1999 Comments: Title:Environmental Oversight Agreement Title Link:http://www.envirostor.dtsc.ca.gov/public/final_documents2?global_id=36010002&enforcement_id=6004606 Area Name: Area Link: Sub Area: Sub Area Link: Document Type:Environmental Oversight Agreement Date Completed:6/27/2000 Comments: m-1-858340592-b 7 of 7 S 0.01 / 62.18 1,642.11 / -11 STRATHAM CITRUS INC. CORNER OF CITRUS AVE. & SUMMIT AVE dd-HAZNET-858340592-bb p1p-858340592-y1y 1 1 ENVIROSTOR HAZNET 21 erisinfo.com | Environmental Risk Information Services Order No: 21021400014 Map Key Number of Records Direction Distance (mi/ft) Elev/Diff (ft) Site DB FONTANA CA 92336 SIC Code:9999 Mailing City:IRVINE NAICS Code:99999 Mailing State:CA EPA ID:CAC002859280 Mailing Zip:926127509 Create Date:5/3/2016 Region Code:4 Fac Act Ind:No Owner Name:STRATHAM CITRUS INC. Inact Date:8/3/2016 Owner Addr 1:2201 DUPONT DR STE 300 County Code:36 Owner Addr 2: County Name:San Bernardino Owner City:IRVINE Mail Name:Owner State:CA Mailing Addr 1:2201 DUPONT DR STE 300 Owner Zip:926127509 Mailing Addr 2:Owner Phone:9498331554 Owner Fax: Contact Information ---- Contact Name: BRANDON ROTH Street Address 1: 2201 DUPONT DR STE 300 Street Address 2: City: IRVINE State: CA Zip: 926127509 Phone: 9498331554 ---- m-2-820263909-b 1 of 2 N 0.37 / 1,971.70 1,713.43 / 60 MIDDLE SCHOOL #10 CITRUS AVENUE/THREE MILE ROAD FONTANA CA 92336 dd-SCH-820263909-bb p1p-820263909-y1y Estor/EPA ID:36650021 Permit Renewal Lead: Site Code:404602 Project Manager: Nat Priority List:NO Supervisor:JAVIER HINOJOSA Acres:24.5 ACRES Public Partici Spclst: Special Program:Census Tract:6071002704 Funding:SCHOOL DISTRICT County:SAN BERNARDINO Assembly District:47 Latitude:34.159 Senate District:20 Longitude:-117.4521 School District:FONTANA UNIFIED SCHOOL DISTRICT APN:NONE SPECIFIED Cleanup Status:NO ACTION REQUIRED AS OF 4/26/2005 Cleanup Oversight Agencies:DTSC - SITE CLEANUP PROGRAM - LEAD AGENCY Site Type:SCHOOL Office:SOUTHERN CALIFORNIA SCHOOLS & BROWNFIELDS OUTREACH Past Use that Caused Contam:NONE Potential Media Affected:NO MEDIA AFFECTED SITE HISTORY: The site is currently undeveloped. No operations, other than weed abatement using disking for fire suppression, have taken place onsite recently. Potential Contamin of Concern: NO CONTAMINANTS FOUND Status:NO ACTION REQUIRED Program Type:SCHOOL EVALUATION CalEnviroScreen Score:86-90% Summary Link:http://www.envirostor.dtsc.ca.gov/public/profile_report?global_id=36650021 Completed Activities Title:Phase 1 Title Link:http://www.envirostor.dtsc.ca.gov/public/final_documents2?global_id=36650021&doc_id=6005075 Area Name: Area Link: 2 SCH 22 erisinfo.com | Environmental Risk Information Services Order No: 21021400014 Map Key Number of Records Direction Distance (mi/ft) Elev/Diff (ft) Site DB Sub Area: Sub Area Link: Document Type:Phase 1 Date Completed:3/30/2005 Comments:NA m-2-820294675-b 2 of 2 N 0.37 / 1,971.70 1,713.43 / 60 MIDDLE SCHOOL #10 CITRUS AVENUE/THREE MILE ROAD FONTANA CA 92336 dd-ENVIROSTOR-820294675-bb p1p-820294675-y1y Estor/EPA ID:36650021 Assembly District:47 Site Code:404602 Senate District:20 Nat Priority List:NO Permit Renewal Lead: APN:NONE SPECIFIED Public Partici Spclst: Census Tract:6071002704 Project Manager: Site Type:SCHOOL County:SAN BERNARDINO Address Description:CITRUS AVENUE/THREE MILE ROAD Latitude:34.159 Office:SOUTHERN CALIFORNIA SCHOOLS & BROWNFIELDS OUTREACH Longitude:-117.4521 Special Program:Acres:24.5 ACRES Funding:SCHOOL DISTRICT Supervisor:JAVIER HINOJOSA Cleanup Status:NO ACTION REQUIRED AS OF 4/26/2005 Cleanup Oversight Agencies:DTSC - SITE CLEANUP PROGRAM - LEAD AGENCY School District:FONTANA UNIFIED SCHOOL DISTRICT Past Use that Caused Contam:NONE Potential Media Affected:NO MEDIA AFFECTED Potential Contamin of Concern: NO CONTAMINANTS FOUND Site History: The site is currently undeveloped. No operations, other than weed abatement using disking for fire suppression, have taken place onsite recently. Status:NO ACTION REQUIRED A2 Program Type:SCHOOL EVALUATION CalEnviroScreen Score:86-90% Summary Link:http://www.envirostor.dtsc.ca.gov/public/profile_report?global_id=36650021 Completed Activities Title:Phase 1 Title Link:http://www.envirostor.dtsc.ca.gov/public/final_documents2?global_id=36650021&doc_id=6005075 Area Name: Area Link: Sub Area: Sub Area Link: Document Type:Phase 1 Date Completed:3/30/2005 Comments:NA m-3-820264971-b 1 of 2 SSW 0.52 / 2,770.80 1,567.15 / -86 ELEMENTARY SCHOOL NO. 33 CURTIS AVENUE/CATAWBA AVENUE FONTANA CA 92336 dd-SCH-820264971-bb p1p-820264971-y1y Estor/EPA ID:36650020 Permit Renewal Lead: Site Code:404576 Project Manager:AMIT PATHAK Nat Priority List:NO Supervisor:SHAHIR HADDAD Acres:12 ACRES Public Partici Spclst: Special Program:Census Tract:6071002304 Funding:SCHOOL DISTRICT County:SAN BERNARDINO Assembly District:47 Latitude:34.1446 Senate District:20 Longitude:-117.4565 School District:FONTANA UNIFIED SCHOOL DISTRICT 2 3 ENVIROSTOR SCH 23 erisinfo.com | Environmental Risk Information Services Order No: 21021400014 Map Key Number of Records Direction Distance (mi/ft) Elev/Diff (ft) Site DB APN:NONE SPECIFIED Cleanup Status:NO ACTION REQUIRED AS OF 11/8/2004 Cleanup Oversight Agencies:DTSC - LEAD AGENCY Site Type:SCHOOL Office:SOUTHERN CALIFORNIA SCHOOLS & BROWNFIELDS OUTREACH Past Use that Caused Contam:NONE Potential Media Affected:NO MEDIA AFFECTED Potential Contamin of Concern: NO CONTAMINANTS FOUND SITE HISTORY: The site is vacant land, flat with a slight slope and is zoned for single family residences. Currently, the site is owned by Kou-Chiang Chou. Status:NO ACTION REQUIRED Program Type:SCHOOL EVALUATION CalEnviroScreen Score:61-65% Summary Link:http://www.envirostor.dtsc.ca.gov/public/profile_report?global_id=36650020 Completed Activities Title:Phase 1 Title Link:http://www.envirostor.dtsc.ca.gov/public/final_documents2?global_id=36650020&doc_id=6005074 Area Name: Area Link: Sub Area: Sub Area Link: Document Type:Phase 1 Date Completed:11/8/2004 Comments: m-3-820294745-b 2 of 2 SSW 0.52 / 2,770.80 1,567.15 / -86 ELEMENTARY SCHOOL NO. 33 CURTIS AVENUE/CATAWBA AVENUE FONTANA CA 92336 dd-ENVIROSTOR-820294745-bb p1p-820294745-y1y Estor/EPA ID:36650020 Assembly District:47 Site Code:404576 Senate District:20 Nat Priority List:NO Permit Renewal Lead: APN:NONE SPECIFIED Public Partici Spclst: Census Tract:6071002304 Project Manager:AMIT PATHAK Site Type:SCHOOL County:SAN BERNARDINO Address Description:CURTIS AVENUE/CATAWBA AVENUE Latitude:34.1446 Office:SOUTHERN CALIFORNIA SCHOOLS & BROWNFIELDS OUTREACH Longitude:-117.4565 Special Program:Acres:12 ACRES Funding:SCHOOL DISTRICT Supervisor:SHAHIR HADDAD Cleanup Status:NO ACTION REQUIRED AS OF 11/8/2004 Cleanup Oversight Agencies:DTSC - LEAD AGENCY School District:FONTANA UNIFIED SCHOOL DISTRICT Past Use that Caused Contam:NONE Potential Media Affected:NO MEDIA AFFECTED Potential Contamin of Concern: NO CONTAMINANTS FOUND Site History: The site is vacant land, flat with a slight slope and is zoned for single family residences. Currently, the site is owned by Kou-Chiang Chou. Status:NO ACTION REQUIRED A2 Program Type:SCHOOL EVALUATION CalEnviroScreen Score:61-65% Summary Link:http://www.envirostor.dtsc.ca.gov/public/profile_report?global_id=36650020 3 ENVIROSTOR 24 erisinfo.com | Environmental Risk Information Services Order No: 21021400014 Map Key Number of Records Direction Distance (mi/ft) Elev/Diff (ft) Site DB Completed Activities Title:Phase 1 Title Link:http://www.envirostor.dtsc.ca.gov/public/final_documents2?global_id=36650020&doc_id=6005074 Area Name: Area Link: Sub Area: Sub Area Link: Document Type:Phase 1 Date Completed:11/8/2004 Comments: m-4-820264236-b 1 of 1 E 0.53 / 2,772.51 1,679.68 / 27 ELEMENTARY SCHOOL # 34 SITE SUMMIT AVENUE/SIERRA AVENUE FONTANA CA 92336 dd-SCH-820264236-bb p1p-820264236-y1y Estor/EPA ID:60000375 Permit Renewal Lead: Site Code:404716 Project Manager: Nat Priority List:NO Supervisor:SHAHIR HADDAD Acres:7.4 ACRES Public Partici Spclst: Special Program:Census Tract:6071002704 Funding:SCHOOL DISTRICT County:SAN BERNARDINO Assembly District:47 Latitude:34.1515 Senate District:20 Longitude:-117.4417 School District:FONTANA UNIFIED SCHOOL DISTRICT APN:239-141-22 Cleanup Status:NO ACTION REQUIRED AS OF 8/10/2006 Cleanup Oversight Agencies:DTSC - SITE CLEANUP PROGRAM - LEAD AGENCY Site Type:SCHOOL Office:SOUTHERN CALIFORNIA SCHOOLS & BROWNFIELDS OUTREACH Past Use that Caused Contam:NONE Potential Media Affected:NO MEDIA AFFECTED Potential Contamin of Concern: NO CONTAMINANTS FOUND SITE HISTORY: The site is currently undeveloped. There are no buildings or structures located on the subject property. Status:NO ACTION REQUIRED Program Type:SCHOOL EVALUATION CalEnviroScreen Score:86-90% Summary Link:http://www.envirostor.dtsc.ca.gov/public/profile_report?global_id=60000375 Completed Activities Title:Phase 1 Environmental Site Assessment (J House Environmental, Inc.) Title Link:http://www.envirostor.dtsc.ca.gov/public/final_documents2?global_id=60000375&doc_id=6012020 Area Name: Area Link: Sub Area: Sub Area Link: Document Type:Phase 1 Date Completed:8/10/2006 Comments: m-5-820263830-b 1 of 3 W 0.62 / 3,265.98 1,599.73 / -53 LYTLE CREEK HIGH SCHOOL NO. 4 ADDITION LYTLE CREEK ROAD/SUMMIT AVENUE FONTANA CA 92336 dd-SCH-820263830-bb p1p-820263830-y1y 4 5 SCH SCH 25 erisinfo.com | Environmental Risk Information Services Order No: 21021400014 Map Key Number of Records Direction Distance (mi/ft) Elev/Diff (ft) Site DB Estor/EPA ID:36010066 Permit Renewal Lead: Site Code:404296 Project Manager: Nat Priority List:NO Supervisor:YOLANDA GARZA Acres:9.18 ACRES Public Partici Spclst: Special Program:Census Tract:6071002304 Funding:SCHOOL DISTRICT County:SAN BERNARDINO Assembly District:47 Latitude:34.1455 Senate District:20 Longitude:-117.4663 School District:FONTANA UNIFIED SCHOOL DISTRICT APN:NONE SPECIFIED Cleanup Status:NO ACTION REQUIRED AS OF 11/29/2001 Cleanup Oversight Agencies:DTSC - LEAD AGENCY Site Type:SCHOOL Office:SOUTHERN CALIFORNIA SCHOOLS & BROWNFIELDS OUTREACH Past Use that Caused Contam:AGRICULTURAL - ROW CROPS Potential Media Affected:SOIL Potential Contamin of Concern: CHLORDANE, DDD, DDE, DDT SITE HISTORY: The proposed site is located on the east side of Lytle Creek Road and south of Summit Avenue in Fontana, California. The site is currently unoccupied with the exception of natural vegetation. The site has been vacant since 1933. The site is located in a historically agricultural region. Status:NO ACTION REQUIRED Program Type:SCHOOL EVALUATION CalEnviroScreen Score:61-65% Summary Link:http://www.envirostor.dtsc.ca.gov/public/profile_report?global_id=36010066 Completed Activities Title:Phase 1 Title Link: Area Name: Area Link: Sub Area: Sub Area Link: Document Type:Phase 1 Date Completed:11/29/2001 Comments: Title:* Site Visit - Site Inspections/visit Title Link: Area Name: Area Link: Sub Area: Sub Area Link: Document Type:Site Inspections/Visit (Non LUR) Date Completed:11/28/2001 Comments: m-5-820300540-b 2 of 3 W 0.62 / 3,265.98 1,599.73 / -53 LYTLE CREEK HIGH SCHOOL NO. 4 LYTLE CREEK ROAD/SUMMIT AVENUE FONTANA CA 92336 dd-ENVIROSTOR-820300540-bb p1p-820300540-y1y Estor/EPA ID:36010008 Assembly District:47 Site Code:404048 Senate District:20 Nat Priority List:NO Permit Renewal Lead: APN:NONE SPECIFIED Public Partici Spclst: Census Tract:6071002601 Project Manager: Site Type:SCHOOL County:SAN BERNARDINO Address Description:LYTLE CREEK ROAD/SUMMIT AVENUE Latitude:34.0602985706212 Office:SOUTHERN CALIFORNIA SCHOOLS & Longitude:-117.451233314983 5 ENVIROSTOR 26 erisinfo.com | Environmental Risk Information Services Order No: 21021400014 Map Key Number of Records Direction Distance (mi/ft) Elev/Diff (ft) Site DB BROWNFIELDS OUTREACH Special Program:Acres:9.2 ACRES Funding:SCHOOL DISTRICT Supervisor:JAVIER HINOJOSA Cleanup Status:NO FURTHER ACTION AS OF 6/27/2000 Cleanup Oversight Agencies:DTSC - LEAD AGENCY School District:FONTANA UNIFIED SCHOOL DISTRICT Past Use that Caused Contam:AGRICULTURAL - ROW CROPS Potential Media Affected:NO MEDIA AFFECTED Potential Contamin of Concern: ARSENIC Site History: PEA done on south adjacent property. PEA Completed to expand site 11/29/01 Phase I. Status:NO FURTHER ACTION A2 Program Type:SCHOOL EVALUATION CalEnviroScreen Score:71-75% Summary Link:http://www.envirostor.dtsc.ca.gov/public/profile_report?global_id=36010008 Completed Activities Title:Phase 1 Environmental Site Assessment Title Link: Area Name: Area Link: Sub Area: Sub Area Link: Document Type:Other Report Date Completed:1/31/2000 Comments:Phase 1 Title:Preliminary Endangerment Assessment Report Title Link:http://www.envirostor.dtsc.ca.gov/public/final_documents2?global_id=36010008&doc_id=6004650 Area Name: Area Link: Sub Area: Sub Area Link: Document Type:Preliminary Endangerment Assessment Report Date Completed:9/18/2000 Comments: Title:Environmental Oversight Agreement Title Link:http://www.envirostor.dtsc.ca.gov/public/final_documents2?global_id=36010008&enforcement_id=6004648 Area Name: Area Link: Sub Area: Sub Area Link: Document Type:Environmental Oversight Agreement Date Completed:6/27/2000 Comments: Title:* Site Visit - Site Inspections/visit Title Link: Area Name: Area Link: Sub Area: Sub Area Link: Document Type:Site Inspections/Visit (Non LUR) Date Completed:3/7/2000 Comments: Title:* Site Visit - Site Inspections/visit Title Link: Area Name: Area Link: 27 erisinfo.com | Environmental Risk Information Services Order No: 21021400014 Map Key Number of Records Direction Distance (mi/ft) Elev/Diff (ft) Site DB Sub Area: Sub Area Link: Document Type:Site Inspections/Visit (Non LUR) Date Completed:2/22/2000 Comments: Title:PEA Workplan Title Link:http://www.envirostor.dtsc.ca.gov/public/final_documents2?global_id=36010008&doc_id=6004653 Area Name: Area Link: Sub Area: Sub Area Link: Document Type:Preliminary Endangerment Assessment Workplan Date Completed:5/2/2000 Comments:Approval letter prepared per DL. m-5-820300943-b 3 of 3 W 0.62 / 3,265.98 1,599.73 / -53 LYTLE CREEK HIGH SCHOOL NO. 4 ADDITION LYTLE CREEK ROAD/SUMMIT AVENUE FONTANA CA 92336 dd-ENVIROSTOR-820300943-bb p1p-820300943-y1y Estor/EPA ID:36010066 Assembly District:47 Site Code:404296 Senate District:20 Nat Priority List:NO Permit Renewal Lead: APN:NONE SPECIFIED Public Partici Spclst: Census Tract:6071002304 Project Manager: Site Type:SCHOOL County:SAN BERNARDINO Address Description:LYTLE CREEK ROAD/SUMMIT AVENUE Latitude:34.1455 Office:SOUTHERN CALIFORNIA SCHOOLS & BROWNFIELDS OUTREACH Longitude:-117.4663 Special Program:Acres:9.18 ACRES Funding:SCHOOL DISTRICT Supervisor:YOLANDA GARZA Cleanup Status:NO ACTION REQUIRED AS OF 11/29/2001 Cleanup Oversight Agencies:DTSC - LEAD AGENCY School District:FONTANA UNIFIED SCHOOL DISTRICT Past Use that Caused Contam:AGRICULTURAL - ROW CROPS Potential Media Affected:SOIL Potential Contamin of Concern: CHLORDANE, DDD, DDE, DDT Site History: The proposed site is located on the east side of Lytle Creek Road and south of Summit Avenue in Fontana, California. The site is currently unoccupied with the exception of natural vegetation. The site has been vacant since 1933. The site is located in a historically agricultural region. Status:NO ACTION REQUIRED A2 Program Type:SCHOOL EVALUATION CalEnviroScreen Score:61-65% Summary Link:http://www.envirostor.dtsc.ca.gov/public/profile_report?global_id=36010066 Completed Activities Title:Phase 1 Title Link: Area Name: Area Link: Sub Area: Sub Area Link: Document Type:Phase 1 Date Completed:11/29/2001 Comments: Title:* Site Visit - Site Inspections/visit Title Link: 5 ENVIROSTOR 28 erisinfo.com | Environmental Risk Information Services Order No: 21021400014 Map Key Number of Records Direction Distance (mi/ft) Elev/Diff (ft) Site DB Area Name: Area Link: Sub Area: Sub Area Link: Document Type:Site Inspections/Visit (Non LUR) Date Completed:11/28/2001 Comments: m-6-820263242-b 1 of 2 WNW 0.67 / 3,563.25 1,642.78 / -10 FALCON RIDGE ELEMENTARY SCHOOL LYTLE CREEK ROAD/TOSCANA LANE FONTANA CA 92336 dd-SCH-820263242-bb p1p-820263242-y1y Estor/EPA ID:60000338 Permit Renewal Lead: Site Code:404715 Project Manager: Nat Priority List:NO Supervisor:YOLANDA GARZA Acres:14 ACRES Public Partici Spclst: Special Program:Census Tract:6071002010 Funding:SCHOOL DISTRICT County:SAN BERNARDINO Assembly District:47 Latitude:34.1547 Senate District:20 Longitude:-117.467 School District:ETIWANDA ELEMENTARY SCHOOL DISTRICT APN:226-091-68 Cleanup Status:NO ACTION REQUIRED AS OF 8/1/2006 Cleanup Oversight Agencies:DTSC - SITE CLEANUP PROGRAM - LEAD AGENCY Site Type:SCHOOL Office:SOUTHERN CALIFORNIA SCHOOLS & BROWNFIELDS OUTREACH Past Use that Caused Contam:NONE Potential Media Affected:NO MEDIA AFFECTED Potential Contamin of Concern: NO CONTAMINANTS FOUND SITE HISTORY: The site consists of vacant and has had no historical uses with the possible exception of rangeland grazing. Status:NO ACTION REQUIRED Program Type:SCHOOL EVALUATION CalEnviroScreen Score:31-35% Summary Link:http://www.envirostor.dtsc.ca.gov/public/profile_report?global_id=60000338 Completed Activities Title:Site Visit Title Link: Area Name: Area Link: Sub Area: Sub Area Link: Document Type:Site Inspections/Visit (Non LUR) Date Completed:8/1/2006 Comments: Title:Phase 1 Environmental Site Assessment Falcon Ridge ES (RMA Group 6/20/06) Title Link:http://www.envirostor.dtsc.ca.gov/public/final_documents2?global_id=60000338&doc_id=6011677 Area Name: Area Link: Sub Area: Sub Area Link: Document Type:Phase 1 Date Completed:8/1/2006 Comments:Phase I approval letter issued by DTSC. 6 SCH 29 erisinfo.com | Environmental Risk Information Services Order No: 21021400014 Map Key Number of Records Direction Distance (mi/ft) Elev/Diff (ft) Site DB m-6-820299336-b 2 of 2 WNW 0.67 / 3,563.25 1,642.78 / -10 FALCON RIDGE ELEMENTARY SCHOOL LYTLE CREEK ROAD/TOSCANA LANE FONTANA CA 92336 dd-ENVIROSTOR-820299336-bb p1p-820299336-y1y Estor/EPA ID:60000338 Assembly District:47 Site Code:404715 Senate District:20 Nat Priority List:NO Permit Renewal Lead: APN:226-091-68 Public Partici Spclst: Census Tract:6071002010 Project Manager: Site Type:SCHOOL County:SAN BERNARDINO Address Description:LYTLE CREEK ROAD/TOSCANA LANE Latitude:34.1547 Office:SOUTHERN CALIFORNIA SCHOOLS & BROWNFIELDS OUTREACH Longitude:-117.467 Special Program:Acres:14 ACRES Funding:SCHOOL DISTRICT Supervisor:YOLANDA GARZA Cleanup Status:NO ACTION REQUIRED AS OF 8/1/2006 Cleanup Oversight Agencies:DTSC - SITE CLEANUP PROGRAM - LEAD AGENCY School District:ETIWANDA ELEMENTARY SCHOOL DISTRICT Past Use that Caused Contam:NONE Potential Media Affected:NO MEDIA AFFECTED Potential Contamin of Concern: NO CONTAMINANTS FOUND Site History: The site consists of vacant and has had no historical uses with the possible exception of rangeland grazing. Status:NO ACTION REQUIRED A2 Program Type:SCHOOL EVALUATION CalEnviroScreen Score:31-35% Summary Link:http://www.envirostor.dtsc.ca.gov/public/profile_report?global_id=60000338 Completed Activities Title:Site Visit Title Link: Area Name: Area Link: Sub Area: Sub Area Link: Document Type:Site Inspections/Visit (Non LUR) Date Completed:8/1/2006 Comments: Title:Phase 1 Environmental Site Assessment Falcon Ridge ES (RMA Group 6/20/06) Title Link:http://www.envirostor.dtsc.ca.gov/public/final_documents2?global_id=60000338&doc_id=6011677 Area Name: Area Link: Sub Area: Sub Area Link: Document Type:Phase 1 Date Completed:8/1/2006 Comments:Phase I approval letter issued by DTSC. m-7-820263432-b 1 of 2 WNW 0.72 / 3,813.57 1,662.79 / 10 PROPOSED ELEMENTARY SCHOOL #35 LYTLE CREEK ROAD/THREE MILE ROAD FONTANA CA 92336 dd-SCH-820263432-bb p1p-820263432-y1y Estor/EPA ID:60000432 Permit Renewal Lead: Site Code:404719 Project Manager: Nat Priority List:NO Supervisor:SHAHIR HADDAD Acres:12 ACRES Public Partici Spclst: 6 7 ENVIROSTOR SCH 30 erisinfo.com | Environmental Risk Information Services Order No: 21021400014 Map Key Number of Records Direction Distance (mi/ft) Elev/Diff (ft) Site DB Special Program:Census Tract:6071002010 Funding:SCHOOL DISTRICT County:SAN BERNARDINO Assembly District:47 Latitude:34.1583 Senate District:20 Longitude:-117.4661 School District:FONTANA UNIFIED SCHOOL DISTRICT APN:NONE SPECIFIED Cleanup Status:NO FURTHER ACTION AS OF 2/26/2007 Cleanup Oversight Agencies:DTSC - SITE CLEANUP PROGRAM - LEAD AGENCY Site Type:SCHOOL Office:SOUTHERN CALIFORNIA SCHOOLS & BROWNFIELDS OUTREACH Past Use that Caused Contam:AGRICULTURAL - ROW CROPS Potential Media Affected:SOIL Potential Contamin of Concern: DIOXIN (AS 2,3,7,8-TCDD TEQ), METALS, METHOXYCHLOR, ORGANOCHLORINE PESTICIDES (8081 OCPS) SITE HISTORY: Site consists of 12.0 acres of vacant land. Historically used for vineyards from about 1938-1980. Site is currently undeveloped land that is being used as a staging point for residential construction activities associated with the adjacent property to the south. Pile of roofing material observed on eastern portion of site and stained/discolored soils observed on western portions although, recently, stained soils have been removed and placed on tarp for disposal purposes. In 2004 a site assessment was performed; soil samples were analyzed for OCPs at that time. Concentrations of DDE and DDT present in samples. Site originally 13.93 acres, reduced to 12.0 acres. Pile of roofing material no longer within site boundaries after reduction. PEA investigation for OCPs and metals due to past ag. use. Sample results below levels of concern. PEA determined no further action and approved Feb. 23, 2007. Status:NO FURTHER ACTION Program Type:SCHOOL EVALUATION CalEnviroScreen Score:31-35% Summary Link:http://www.envirostor.dtsc.ca.gov/public/profile_report?global_id=60000432 Completed Activities Title:PEA Tech Memo Title Link:http://www.envirostor.dtsc.ca.gov/public/final_documents2?global_id=60000432&doc_id=6013517 Area Name: Area Link: Sub Area: Sub Area Link: Document Type:Preliminary Endangerment Assessment Report Date Completed:11/15/2006 Comments:PEA Tech Memo approved 11/15/06. Title:Other Report Title Link: Area Name: Area Link: Sub Area: Sub Area Link: Document Type:Other Report Date Completed:9/12/2006 Comments:Phase I was received as background information for PEA. Title:Draft PEA Report Title Link:http://www.envirostor.dtsc.ca.gov/public/final_documents2?global_id=60000432&doc_id=6013858 Area Name: Area Link: Sub Area: Sub Area Link: Document Type:Preliminary Endangerment Assessment Report Date Completed:2/26/2007 Comments:PEA Approved 02/23/07. No Further Action. Title:EOA Title Link:http://www.envirostor.dtsc.ca.gov/public/final_documents2?global_id=60000432&enforcement_id=6009966 Area Name: 31 erisinfo.com | Environmental Risk Information Services Order No: 21021400014 Map Key Number of Records Direction Distance (mi/ft) Elev/Diff (ft) Site DB Area Link: Sub Area: Sub Area Link: Document Type:Environmental Oversight Agreement Date Completed:9/28/2006 Comments: m-7-820300852-b 2 of 2 WNW 0.72 / 3,813.57 1,662.79 / 10 PROPOSED ELEMENTARY SCHOOL #35 LYTLE CREEK ROAD/THREE MILE ROAD FONTANA CA 92336 dd-ENVIROSTOR-820300852-bb p1p-820300852-y1y Estor/EPA ID:60000432 Assembly District:47 Site Code:404719 Senate District:20 Nat Priority List:NO Permit Renewal Lead: APN:NONE SPECIFIED Public Partici Spclst: Census Tract:6071002010 Project Manager: Site Type:SCHOOL County:SAN BERNARDINO Address Description:LYTLE CREEK ROAD/THREE MILE ROAD Latitude:34.1583 Office:SOUTHERN CALIFORNIA SCHOOLS & BROWNFIELDS OUTREACH Longitude:-117.4661 Special Program:Acres:12 ACRES Funding:SCHOOL DISTRICT Supervisor:SHAHIR HADDAD Cleanup Status:NO FURTHER ACTION AS OF 2/26/2007 Cleanup Oversight Agencies:DTSC - SITE CLEANUP PROGRAM - LEAD AGENCY School District:FONTANA UNIFIED SCHOOL DISTRICT Past Use that Caused Contam:AGRICULTURAL - ROW CROPS Potential Media Affected:SOIL Potential Contamin of Concern: DIOXIN (AS 2,3,7,8-TCDD TEQ), METALS, METHOXYCHLOR, ORGANOCHLORINE PESTICIDES (8081 OCPS) Site History: Site consists of 12.0 acres of vacant land. Historically used for vineyards from about 1938-1980. Site is currently undeveloped land that is being used as a staging point for residential construction activities associated with the adjacent property to the south. Pile of roofing material observed on eastern portion of site and stained/discolored soils observed on western portions although, recently, stained soils have been removed and placed on tarp for disposal purposes. In 2004 a site assessment was performed; soil samples were analyzed for OCPs at that time. Concentrations of DDE and DDT present in samples. Site originally 13.93 acres, reduced to 12.0 acres. Pile of roofing material no longer within site boundaries after reduction. PEA investigation for OCPs and metals due to past ag. use. Sample results below levels of concern. PEA determined no further action and approved Feb. 23, 2007. Status:NO FURTHER ACTION A2 Program Type:SCHOOL EVALUATION CalEnviroScreen Score:31-35% Summary Link:http://www.envirostor.dtsc.ca.gov/public/profile_report?global_id=60000432 Completed Activities Title:PEA Tech Memo Title Link:http://www.envirostor.dtsc.ca.gov/public/final_documents2?global_id=60000432&doc_id=6013517 Area Name: Area Link: Sub Area: Sub Area Link: Document Type:Preliminary Endangerment Assessment Report Date Completed:11/15/2006 Comments:PEA Tech Memo approved 11/15/06. Title:Draft PEA Report Title Link:http://www.envirostor.dtsc.ca.gov/public/final_documents2?global_id=60000432&doc_id=6013858 Area Name: Area Link: Sub Area: Sub Area Link: 7 ENVIROSTOR 32 erisinfo.com | Environmental Risk Information Services Order No: 21021400014 Map Key Number of Records Direction Distance (mi/ft) Elev/Diff (ft) Site DB Document Type:Preliminary Endangerment Assessment Report Date Completed:2/26/2007 Comments:PEA Approved 02/23/07. No Further Action. Title:Other Report Title Link: Area Name: Area Link: Sub Area: Sub Area Link: Document Type:Other Report Date Completed:9/12/2006 Comments:Phase I was received as background information for PEA. Title:EOA Title Link:http://www.envirostor.dtsc.ca.gov/public/final_documents2?global_id=60000432&enforcement_id=6009966 Area Name: Area Link: Sub Area: Sub Area Link: Document Type:Environmental Oversight Agreement Date Completed:9/28/2006 Comments: m-8-820295926-b 1 of 1 E 0.84 / 4,456.98 1,669.97 / 17 ELEMENTARY SCHOOL # 34 SITE SUMMIT AVENUE/SIERRA AVENUE FONTANA CA 92336 dd-ENVIROSTOR-820295926-bb p1p-820295926-y1y Estor/EPA ID:60000375 Assembly District:47 Site Code:404716 Senate District:20 Nat Priority List:NO Permit Renewal Lead: APN:239-141-22 Public Partici Spclst: Census Tract:6071002704 Project Manager: Site Type:SCHOOL County:SAN BERNARDINO Address Description:SUMMIT AVENUE/SIERRA AVENUE Latitude:34.1515 Office:SOUTHERN CALIFORNIA SCHOOLS & BROWNFIELDS OUTREACH Longitude:-117.4417 Special Program:Acres:7.4 ACRES Funding:SCHOOL DISTRICT Supervisor:SHAHIR HADDAD Cleanup Status:NO ACTION REQUIRED AS OF 8/10/2006 Cleanup Oversight Agencies:DTSC - SITE CLEANUP PROGRAM - LEAD AGENCY School District:FONTANA UNIFIED SCHOOL DISTRICT Past Use that Caused Contam:NONE Potential Media Affected:NO MEDIA AFFECTED Potential Contamin of Concern: NO CONTAMINANTS FOUND Site History: The site is currently undeveloped. There are no buildings or structures located on the subject property. Status:NO ACTION REQUIRED A2 Program Type:SCHOOL EVALUATION CalEnviroScreen Score:86-90% Summary Link:http://www.envirostor.dtsc.ca.gov/public/profile_report?global_id=60000375 Completed Activities Title:Phase 1 Environmental Site Assessment (J House Environmental, Inc.) Title Link:http://www.envirostor.dtsc.ca.gov/public/final_documents2?global_id=60000375&doc_id=6012020 Area Name: Area Link: Sub Area: Sub Area Link: 8 ENVIROSTOR 33 erisinfo.com | Environmental Risk Information Services Order No: 21021400014 Map Key Number of Records Direction Distance (mi/ft) Elev/Diff (ft) Site DB Document Type:Phase 1 Date Completed:8/10/2006 Comments: 34 erisinfo.com | Environmental Risk Information Services Order No: 21021400014 h-Unplottable Summary Total: 5 Unplottable sites DB Company Name/Site Name Address City Zip ERIS ID uu-CHMIRS-821881871-aa So Ca Edison Sieiri just North of Summit Fontana CA 821881871 Control No | Notified Date: 12-7196 | uu-CHMIRS-821832448-aa Kinder Morgan Cajon booster and Cajon Summit Unincorporated county area CA 821832448 Control No | Notified Date: 07-4622 | uu-ERNS-806870051-aa CITRUS AVE FONTANA CA 806870051 uu-ERNS-806614472-aa CITRUS AVE MILE POST 47.5 FONTANA CA 806614472 uu-HIST CHMIRS-826017500-aa SUMMIT AVE RANCHO CUCAMONGA CA 826017500 CHMIRS CHMIRS ERNS ERNS HIST CHMIRS Unplottable Summary 35 erisinfo.com | Environmental Risk Information Services Order No: 21021400014 h-Unplottable Report Site:So Ca Edison Sieiri just North of Summit Fontana CA uu-CHMIRS-821881871-bb Control No: 12-7196 Notified Date: Notified Date Time: Year:2012 County: San Bernardino County URL:https://w3.calema.ca.gov/operational/malhaz. nsf/f1841a103c102734882563e200760c4a/6568314cbc55e89288257ac5006206e6?OpenDocument California Hazardous Material Incident Report System (as of 2006 to 2015) Contained: Yes 3 Ves >= 300 Tons:No 1 Substance: Mineral Oil Incident Date:11/29/2012 1 Measure: Gal(s)Incident Time:800 1 Other: Spill Site:Road 1 Quantity: 10 Injuries?:Yes 1 Type: PETROLEUM No of Injuries:1 1 Pipeline: No Fatals?:No 1 Vessel >= 300 Tons:No No of Fatals: 2 Substance: Evacs?:No 2 Quantity: No of Evacs: 2 Measure: Cleanup:Contractor 2 Type: Site: 2 Other: Cause:Human Error 2 Pipeline: No Cause Other: 2 Vessel >= 300 Tons:No Dog No: 3 Substance: Water:No 3 Quantity: Water Way: 3 Measure: City:Fontana 3 Type: County:San Bernardino County 3 Other: Zip: 3 Pipeline: No Admin Agency:San Bernardino County Health Department Notification Area:AA/CUPA,DFG-OSPR,DTSC,RWQCB,US EPA,USFWS,Co/Hlth,Co/E-Hlth Location:Sieiri just North of Summit Description:Caller states substance released from a automatic reclosure due to a car pole accident. Spill Report View Amount 1: Creation Date:11/29/2012 09:50 AM Amount 2: Received By: Amount 3: Admin Agency: Type: PETROLEUM Admin Agency 2: Water: Additional County: On Scene: Phone No: Other on Scene: Ext: Other Notified: Pag Cell: Document Title: SPILL Report Spill Site:Road Cause Desc for Other: Person Notifying Cal OES: Hazardous Materials Spill Report Control Cal OES: 12-7196 Type 3: Control NRC: Other 3: Date : 11/29/2012 Pipeline 3:No Incident Date: 11/29/2012 Ves >= 300 Tons 3:No Time: 0950 Name: CHMIRS Unplottable Report 36 erisinfo.com | Environmental Risk Information Services Order No: 21021400014 Incident Time: 0800 Phone: Water Involved: No Ext: Drink Wtr Impact: Pag Cell: Qty 1: =PRS Name: Measure 1: Gal(s)PRS Phone: Type 1: PETROLEUM PRS Ext: Pipeline 1: No PRS Pag Cell: Ves >= 300 Tons 1: No Received By: Qty 2: =Header Unknown:SOUTH COAST AQMD Amount 2: Incident Desc: Measure 2: R R Crssing < 50 Ft: Type 2: Uprr Rim : Other 2: Notification Info: Pipeline 2: No Notification List: Vessel >= 300 Tns 2: No DOG Unit: Qty 3: =RWQCB Unit:8 Amount 3: Injuries:Yes Injuries #: 1 Measure 3: Fatality:No Incident Location:Sieiri just North of Summit Reported Cause:Human Error Amount 1:10 Substance 1:Mineral Oil Substance 2: Substance 3: Waterway: Contained:Yes Known Impact:None Other 1: Detail for Other: Site:Road On Scene:Fire Dept., Police Dept. Other on Scene: Other Notified:San Bernardino Co Fire Evacuation:No Cleanup By:Contractor Agency:So Ca Edison PRS Agency: Admin Agency:San Bernardino County Health Department Sec Agency: Additional County: Admin Agency 2: Description:Caller states substance released from a automatic reclosure due to a car pole accident. Site:Kinder Morgan Cajon booster and Cajon Summit Unincorporated county area CA uu-CHMIRS-821832448-bb Control No: 07-4622 Notified Date: Notified Date Time: Year:2007 County: San Bernardino County URL:https://w3.calema.ca.gov/operational/malhaz. nsf/f1841a103c102734882563e200760c4a/a6673c7c7338b7e98825732b003fd17d?OpenDocument California Hazardous Material Incident Report System (as of 2006 to 2015) Contained: Unknown 3 Ves >= 300 Tons: 1 Substance: potential release of Jet Fuel Incident Date:8/2/2007 1 Measure: Unknown Incident Time:215 1 Other: Spill Site:Pipe Line 1 Quantity: UNK Injuries?: 1 Type: PETROLEUM No of Injuries:0 1 Pipeline: Fatals?: 1 Vessel >= 300 Tons:No of Fatals:0 2 Substance: Evacs?: 2 Quantity: No of Evacs:0 2 Measure: Cleanup:Unknown 2 Type: Site: 2 Other: Cause: 2 Pipeline: Cause Other: CHMIRS 37 erisinfo.com | Environmental Risk Information Services Order No: 21021400014 2 Vessel >= 300 Tons:Dog No: 3 Substance: Water:No 3 Quantity: Water Way: 3 Measure: City:Unincorporated county area 3 Type: County:San Bernardino County 3 Other: Zip: 3 Pipeline: Admin Agency:San Bernardino County Fire Department Notification Area:AA/CUPA,DFG-OSPR,DTSC,RWQCB,US EPA,USFWS,SFM Location:Cajon booster and Cajon Summit Description:RP States: This is a precautionary report, no release. A power failure at the Colton terminal left the line in a slack condition. Pressure will be verified. Spill Report View Amount 1: Creation Date:08/02/2007 04:57 AM Amount 2: Received By: Amount 3: Admin Agency: Type: PETROLEUM Admin Agency 2: Water: Additional County: On Scene: Phone No: Other on Scene: Ext: Other Notified: Pag Cell: Document Title: Cal OES-Update Spill Site: Cause Desc for Other: Person Notifying Cal OES: OES Hazardous Materials Spill Update Notify Date:08/02/2007 Notify Time:0437 Occurrence Date:08/02/2007 Occurrence Time: Upd Known Impact: Update Cause: Pers Notifying Upd Place: Pers Notifying Upd Nme: Phone No: Ext: Pag Cell: Fax Notifi List:AA/CUPA, DFG-OSPR, DTSC, RWQCB, US EPA, USFWS, SFM Person Notifying Cal OES Agenc: Kinder Morgan Person Reporting Spill Agency: Op Area:San Bernardino County Unknown Header: Substance 1:potential release of Jet Fuel Qty Amount 1:UNK Measure 1:Unknown Type 1:PETROLEUM Other 1: Pipeline 1: Vessel >= 300 Tons 1: Substance 2: Qty Amount 2: Measure 2: Type 2: Other 2: Pipeline 2: Vessel >= 300 Tons 2: Substance 3: Qty Amount 3: Measure 3: Type 3: Other 3: Pipeline 3: Vessel >= 300 Tons 3: Administering Agency:San Bernardino County Fire Department 38 erisinfo.com | Environmental Risk Information Services Order No: 21021400014 Secondary Agency: Additional Counties: Additional Admin Agency: Other Notified: RWQCB Unit: Confirmation Request: Fax Notification List 2: Administering Agency 2: Additional Admin Agency 2: Secondary Agency 2: Additional Counties 2: DOG Unit: RWQCB Unit 2: Doc URL:https://w3.calema.ca.gov/operational/malhaz. nsf/f1841a103c102734882563e200760c4a/4101be49b75084198825732b0041b910?OpenDocument NRC:844178 Update Description: Situation Update: 08/02/2007, 0458 hrs, per NRC fax: NRC number is 844178.Incident location in fax is listed at 2051 East Slover, Wilmington, Colton Station, Riverside listed as County. Original Description: OES Hazardous Materials Update Quantities Amount: Measure:Unknown Spill Report View Amount 1: Creation Date:08/02/2007 04:37 AM Amount 2: Received By: Amount 3: Admin Agency: Type: PETROLEUM Admin Agency 2: Water: Additional County: On Scene: Phone No: Other on Scene: Ext: Other Notified: Pag Cell: Document Title: SPILL Report Spill Site:Pipe Line Cause Desc for Other: Person Notifying Cal OES: Hazardous Materials Spill Report Control Cal OES: 07-4622 Type 3: Control NRC: Other 3: Date : 08/02/2007 Pipeline 3:No Incident Date: 08/02/2007 Ves >= 300 Tons 3:No Time: 0437 Name: Incident Time: 0215 Phone: Water Involved: No Ext: Drink Wtr Impact: Pag Cell: Qty 1: =PRS Name: Measure 1: Unknown PRS Phone: Type 1: PETROLEUM PRS Ext: Pipeline 1: No PRS Pag Cell: Ves >= 300 Tons 1: No Received By: Qty 2: =Header Unknown:MOJAVE DESERT AQMD Amount 2: Incident Desc: Measure 2: R R Crssing < 50 Ft: Type 2: Uprr Rim : Other 2: Notification Info: Pipeline 2: No Notification List: Vessel >= 300 Tns 2: No DOG Unit: Qty 3: =RWQCB Unit:8 39 erisinfo.com | Environmental Risk Information Services Order No: 21021400014 Amount 3: Injuries:No Measure 3: Fatality:No Incident Location:Cajon booster and Cajon Summit Reported Cause: Amount 1:UNK Substance 1:potential release of Jet Fuel Substance 2: Substance 3: Waterway: Contained:Unknown Known Impact: Other 1: Detail for Other: Site:Pipe Line On Scene: Other on Scene: Other Notified: Evacuation:No Cleanup By:Unknown Agency:Kinder Morgan PRS Agency: Admin Agency:San Bernardino County Fire Department Sec Agency: Additional County: Admin Agency 2: Description:RP States: This is a precautionary report, no release. A power failure at the Colton terminal left the line in a slack condition. Pressure will be verified. Spill Report View Amount 1: Creation Date:08/03/2007 03:24 AM Amount 2: Received By: Amount 3: Admin Agency: Type: PETROLEUM Admin Agency 2: Water: Additional County: On Scene: Phone No: Other on Scene: Ext: Other Notified: Pag Cell: Document Title: Cal OES-Update Spill Site: Cause Desc for Other: Person Notifying Cal OES: OES Hazardous Materials Spill Update Notify Date:08/02/2007 Notify Time:0437 Occurrence Date:08/02/2007 Occurrence Time: Upd Known Impact: Update Cause: Pers Notifying Upd Place: Pers Notifying Upd Nme: Phone No: Ext: Pag Cell: Fax Notifi List:AA/CUPA, DFG-OSPR, DTSC, RWQCB, US EPA, USFWS, SFM Person Notifying Cal OES Agenc: Kinder Morgan Person Reporting Spill Agency: Op Area:San Bernardino County Unknown Header: Substance 1:potential release of Jet Fuel Qty Amount 1:UNK Measure 1:Unknown Type 1:PETROLEUM Other 1: Pipeline 1: Vessel >= 300 Tons 1: 40 erisinfo.com | Environmental Risk Information Services Order No: 21021400014 Substance 2: Qty Amount 2: Measure 2: Type 2: Other 2: Pipeline 2: Vessel >= 300 Tons 2: Substance 3: Qty Amount 3: Measure 3: Type 3: Other 3: Pipeline 3: Vessel >= 300 Tons 3: Administering Agency:San Bernardino County Fire Department Secondary Agency: Additional Counties: Additional Admin Agency: Other Notified: RWQCB Unit: Confirmation Request: Fax Notification List 2: Administering Agency 2: Additional Admin Agency 2: Secondary Agency 2: Additional Counties 2: DOG Unit: RWQCB Unit 2: Doc URL:https://w3.calema.ca.gov/operational/malhaz. nsf/f1841a103c102734882563e200760c4a/588bdfc687580e9b8825732c00393256?OpenDocument NRC: Update Description: Situation Update: 08/03/2007, 0324 hrs: Per Carson Smith, Kinder Morgan: No release occurred. Static pressure test conducted and the line held. No threat or danger. Original Description: OES Hazardous Materials Update Quantities Amount: Measure:Unknown Site: CITRUS AVE FONTANA CA uu-ERNS-806870051-bb NRC Report No: 241067 Latitude Degrees: Type of Incident: RAILROAD NON-RELEASE Latitude Minutes: Incident Cause: UNKNOWN Latitude Seconds: Incident Date: 5/26/1994 1:44:00 AM Longitude Degrees: Incident Location: Longitude Minutes: Incident Dtg: OCCURRED Longitude Seconds: Distance from City: Lat Quad: Distance Units: Long Quad: Direction from City: Location Section: Location County: SAN BERNARDINO Location Township: Potential Flag: Location Range: Year: Year 1994 Reports Description of Incident:FREIGHT TRAIN WAS STRUCK BY A VEHICLE AT A GRADE CROSSINGSPEED OF TRAIN WAS 20 MPH OR LESS Calls Information Date Time Received: 5/26/1994 6:24:25 AM Responsible City: Date Time Complete: 5/26/1994 6:29:14 AM Responsible State:XX Call Type: INC Responsible Zip: Resp Company: Source:UNAVAILABLE ERNS 41 erisinfo.com | Environmental Risk Information Services Order No: 21021400014 Resp Org Type: UNKNOWN Incident Information Tank ID: Building ID: Tank Regulated: U Location Area ID: Tank Regulated By: Location Block ID: Capacity of Tank: OCSG No: Capacity Tank Units: OCSP No: Description of Tank: State Lease No: Actual Amount: Pier Dock No: Actual Amount Units: Berth Slip No: Tank Above Ground: ABOVE Brake Failure:N NPDES: Airbag Deployed: NPDES Compliance: U Transport Contain:U Init Contin Rel No: Location Subdiv: Contin Rel Permit: Platform Rig Name: Contin Release Type: Platform Letter: Aircraft ID: Allision:N Aircraft Runway No: Type of Structure: Aircraft Spot No: Structure Name: Aircraft Type: UNKNOWN Structure Oper:Y Aircraft Model: Transit Bus Flag: Aircraft Fuel Cap: Date Time Norm Serv: Aircraft Fuel Cap U: Serv Disrupt Time: Aircraft Fuel on Brd: Serv Disrupt Units: Aircraft Fuel OB U: CR Begin Date: Aircraft Hanger: CR End Date: Road Mile Marker: CR Change Date: Power Gen Facility: U FBI Contact: Generating Capacity: FBI Contact Dt Tm: Type of Fixed Obj: UNKNOWN Passenger Handling: Type of Fuel: Passenger Route:XXX DOT Crossing No: Passenger Delay:XXX DOT Regulated: U Sub Part C Test Req:XXX Pipeline Type: UNKNOWN Conductor Test: Pipeline Abv Ground: ABOVE Engineer Test: Pipeline Covered: U Trainman Test: Exposed Underwater: U Yard Foreman Test: Railroad Hotline: No RCL Operator Test: Railroad Milepost: 89.7 Brakeman Test: Grade Crossing: Y Train Dispat Test: Crossing Device Ty: Signalman Test: Ty Vehicle Involved: UNKNOWN Oth Employee Test: Device Operational: Y Unknown Test: Incident Details Information Release Secured: U State Agen Report No: Release Rate: State Agen on Scene: Release Rate Unit: State Agen Notified: Release Rate Rate: Fed Agency Notified: Est Duration of Rel: Oth Agency Notified: Desc Remedial Act: NONE Body of Water: Fire Involved: N Tributary of: Fire Extinguished: U Near River Mile Make: Any Evacuations: N Near River Mile Mark: No Evacuated: Offshore:N Who Evacuated: Weather Conditions: Radius of Evacu: Air Temperature: Any Injuries: Y Wind Direction: No. Injured: 1 Wind Speed: No. Hospitalized: Wind Speed Unit: No. Fatalities: Water Supp Contam:U Any Fatalities: U Water Temperature: Any Damages: U Wave Condition: Damage Amount: Current Speed: Air Corridor Closed: N Current Direction: Air Corridor Desc: Current Speed Unit: 42 erisinfo.com | Environmental Risk Information Services Order No: 21021400014 Air Closure Time: EMPL Fatality: Waterway Closed: N Pass Fatality: Waterway Desc: Community Impact:N Waterway Close Time:Passengers Transfer:UNK Road Closed: N Passenger Injuries: Road Desc: Employee Injuries: Road Closure Time: Occupant Fatality: Road Closure Units: Sheen Size: Closure Direction: Sheen Size Units: Major Artery: No Sheen Size Length: Track Closed: N Sheen Size Length U: Track Desc: Sheen Size Width: Track Closure Time: Sheen Size Width U: Track Closure Units: Sheen Color: Track Close Dir: Dir of Sheen Travel: Media Interest: Sheen Odor Desc: Medium Desc: RAIL REPORT (N/A)Duration Unit: Addl Medium Info: Additional Info:INJURY WAS TO DRIVER OF VEHICLE/LIGHTS AND FLASHERS WERE PRESENT ANDFUNCTIONING/DOT CROSSING NO.UNKNOWN/DIRECTION OF TRAIN WESTBOUND Site: CITRUS AVE MILE POST 47.5 FONTANA CA uu-ERNS-806614472-bb NRC Report No: 994379 Latitude Degrees: Type of Incident: RAILROAD Latitude Minutes: Incident Cause: DERAILMENT Latitude Seconds: Incident Date: 11/2/2011 3:40:00 PM Longitude Degrees: Incident Location: Longitude Minutes: Incident Dtg: OCCURRED Longitude Seconds: Distance from City: Lat Quad: Distance Units: Long Quad: Direction from City: Location Section: Location County: SAN BERNARDINO Location Township: Potential Flag: No Location Range: Year: Year 2011 Reports Description of Incident:CALLER IS REPORTING THAT A FREIGHT TRAIN DERAILED GOING INTO THE YARD. Calls Information Date Time Received: 11/2/2011 7:46:15 PM Responsible City: Date Time Complete: 11/2/2011 7:58:41 PM Responsible State:XX Call Type: INC Responsible Zip: Resp Company: Source:TELEPHONE Resp Org Type: UNKNOWN Incident Information Tank ID: Building ID: Tank Regulated: U Location Area ID: Tank Regulated By: Location Block ID: Capacity of Tank: OCSG No: Capacity Tank Units: OCSP No: Description of Tank: State Lease No: Actual Amount: Pier Dock No: Actual Amount Units: Berth Slip No: Tank Above Ground: ABOVE Brake Failure:U NPDES: Airbag Deployed:U NPDES Compliance: U Transport Contain:U Init Contin Rel No: Location Subdiv:SAN GABRIEL Contin Rel Permit: Platform Rig Name: Contin Release Type: Platform Letter: Aircraft ID: Allision:U Aircraft Runway No: Type of Structure: Aircraft Spot No: Structure Name: Aircraft Type: Structure Oper:U Aircraft Model: Transit Bus Flag: ERNS 43 erisinfo.com | Environmental Risk Information Services Order No: 21021400014 Aircraft Fuel Cap: Date Time Norm Serv: Aircraft Fuel Cap U: Serv Disrupt Time: Aircraft Fuel on Brd: Serv Disrupt Units: Aircraft Fuel OB U: CR Begin Date: Aircraft Hanger: CR End Date: Road Mile Marker: CR Change Date: Power Gen Facility: U FBI Contact: Generating Capacity: FBI Contact Dt Tm: Type of Fixed Obj: Passenger Handling:PASSENGERS WERE PLACED ON BUSSES Type of Fuel: Passenger Route:YES DOT Crossing No: Passenger Delay:YES DOT Regulated: U Sub Part C Test Req:YES Pipeline Type: Conductor Test:1 Pipeline Abv Ground: ABOVE Engineer Test:1 Pipeline Covered: U Trainman Test: Exposed Underwater: N Yard Foreman Test: Railroad Hotline: RCL Operator Test: Railroad Milepost: 47.5 Brakeman Test: Grade Crossing: U Train Dispat Test: Crossing Device Ty: Signalman Test: Ty Vehicle Involved: Oth Employee Test: Device Operational: Y Unknown Test: Incident Details Information Release Secured: U State Agen Report No:11-65-49 Release Rate: State Agen on Scene:FD, PD Release Rate Unit: State Agen Notified:PUC, FD, PD Release Rate Rate: Fed Agency Notified:NONE Est Duration of Rel: Oth Agency Notified: Desc Remedial Act: THE CARS ARE BEING RE-SET.Body of Water: Fire Involved: N Tributary of: Fire Extinguished: U Near River Mile Make: Any Evacuations: N Near River Mile Mark: No Evacuated: Offshore:N Who Evacuated: Weather Conditions:UNKNOWN Radius of Evacu: Air Temperature:80 Any Injuries: N Wind Direction: No. Injured: Wind Speed: No. Hospitalized: Wind Speed Unit: No. Fatalities: Water Supp Contam:U Any Fatalities: N Water Temperature: Any Damages: N Wave Condition: Damage Amount: Current Speed: Air Corridor Closed: N Current Direction: Air Corridor Desc: Current Speed Unit: Air Closure Time: EMPL Fatality: Waterway Closed: N Pass Fatality: Waterway Desc: Community Impact: Waterway Close Time:Passengers Transfer:YES Road Closed: N Passenger Injuries: Road Desc: Employee Injuries: Road Closure Time: Occupant Fatality: Road Closure Units: Sheen Size: Closure Direction: Sheen Size Units: Major Artery: No Sheen Size Length: Track Closed: Y Sheen Size Length U: Track Desc: MAIN LINE Sheen Size Width: Track Closure Time: 1.5 Sheen Size Width U: Track Closure Units: Sheen Color: Track Close Dir: E/W Dir of Sheen Travel: Media Interest: NONE Sheen Odor Desc: Medium Desc: RAIL REPORT (N/A)Duration Unit: Addl Medium Info: DERAILMENT Additional Info:NO ADDITIONAL INFORMATION. Site: SUMMIT AVE RANCHO CUCAMONGA CA uu-HIST CHMIRS-826017500-bb OES Control NO: 9991974 Incident Date:3/4/1988 HIST CHMIRS 44 erisinfo.com | Environmental Risk Information Services Order No: 21021400014 Release Factors: Intentional Act Date Reported:3/22/1989 Release Text: Fatalities: Equipm Involved: No Equip Involved Other Injury: Action Taken Text: Other Decon: Chemicals: ASBESTOS Other Fatal: Case Number: Vehicle: HazMat Other: State: HM Injury: CA DOT PUC ICC: Decon: Company Name: Agency Name: SAN BERNARDINO CDEHS County:SAN BERNARDINO HazMat Pers:On-site Fire Services,On-site Non-fire Serv. Action Taken:ID/Analysis of Hazmat,Investigate,Refer to Proper Authority More than three involved?:2 45 erisinfo.com | Environmental Risk Information Services Order No: 21021400014 h-Appendix: Database Descriptions Environmental Risk Information Services (ERIS) can search the following databases. The extent of historical information varies with each database and current information is determined by what is publicly available to ERIS at the time of update. ERIS updates databases as set out in ASTM Standard E1527-13, Section 8.1.8 Sources of Standard Source Information: "Government information from nongovernmental sources may be considered current if the source updates the information at least every 90 days, or, for information that is updated less frequently than quarterly by the government agency, within 90 days of the date the government agency makes the information available to the public." Standard Environmental Record Sources Federal Facility Response Plan:rr-FRP-bb List of facilities that have submitted Facility Response Plans (FRP) to EPA. Facilities that could reasonably be expected to cause "substantial harm" to the environment by discharging oil into or on navigable waters are required to prepare and submit Facility Response Plans (FRPs). Harm is determined based on total oil storage capacity, secondary containment and age of tanks, oil transfer activities, history of discharges, proximity to a public drinking water intake or sensitive environments. Government Publication Date: Mar 26, 2020 National Priority List:rr-NPL-bb National Priorities List (Superfund)-NPL: EPA's (United States Environmental Protection Agency) list of the most serious uncontrolled or abandoned hazardous waste sites identified for possible long-term remedial action under the Superfund program. The NPL, which EPA is required to update at least once a year, is based primarily on the score a site receives from EPA's Hazard Ranking System. A site must be on the NPL to receive money from the Superfund Trust Fund for remedial action. Government Publication Date: Dec 30, 2020 National Priority List - Proposed:rr-PROPOSED NPL-bb Includes sites proposed (by the EPA, the state, or concerned citizens) for addition to the NPL due to contamination by hazardous waste and identified by the Environmental Protection Agency (EPA) as a candidate for cleanup because it poses a risk to human health and/or the environment. Government Publication Date: Dec 30, 2020 Deleted NPL:rr-DELETED NPL-bb The National Oil and Hazardous Substances Pollution Contingency Plan (NCP) establishes the criteria that the EPA uses to delete sites from the NPL. In accordance with 40 CFR 300.425.(e), sites may be deleted from the NPL where no further response is appropriate. Government Publication Date: Dec 30, 2020 SEMS List 8R Active Site Inventory:rr-SEMS-bb The Superfund Program has deployed the Superfund Enterprise Management System (SEMS), which integrates multiple legacy systems into a comprehensive tracking and reporting tool. This inventory contains active sites evaluated by the Superfund program that are either proposed to be or are on the National Priorities List (NPL) as well as sites that are in the screening and assessment phase for possible inclusion on the NPL. The Active Site Inventory Report displays site and location information at active SEMS sites. An active site is one at which site assessment, removal, remedial, enforcement, cost recovery, or oversight activities are being planned or conducted. Government Publication Date: Oct 28, 2020 SEMS List 8R Archive Sites:rr-SEMS ARCHIVE-bb The Superfund Enterprise Management System (SEMS) Archived Site Inventory displays site and location information at sites archived from SEMS. An archived site is one at which EPA has determined that assessment has been completed and no further remedial action is planned under the Superfund program at this time. Government Publication Date: Oct 28, 2020 FRP NPL PROPOSED NPL DELETED NPL SEMS SEMS ARCHIVE Appendix: Database Descriptions 46 erisinfo.com | Environmental Risk Information Services Order No: 21021400014 Inventory of Open Dumps, June 1985:rr-ODI-bb The Resource Conservation and Recovery Act (RCRA) provides for publication of an inventory of open dumps. The Act defines "open dumps" as facilities which do not comply with EPA's "Criteria for Classification of Solid Waste Disposal Facilities and Practices" (40 CFR 257). Government Publication Date: Jun 1985 EPA Report on the Status of Open Dumps on Indian Lands:rr-IODI-bb Public Law 103-399, The Indian Lands Open Dump Cleanup Act of 1994, enacted October 22, 1994, identified congressional concerns that solid waste open dump sites located on American Indian or Alaska Native (AI/AN) lands threaten the health and safety of residents of those lands and contiguous areas. The purpose of the Act is to identify the location of open dumps on Indian lands, assess the relative health and environment hazards posed by those sites, and provide financial and technical assistance to Indian tribal governments to close such dumps in compliance with Federal standards and regulations or standards promulgated by Indian Tribal governments or Alaska Native entities. Government Publication Date: Dec 31, 1998 Comprehensive Environmental Response, Compensation and Liability Information System - CERCLIS: rr-CERCLIS-bb Superfund is a program administered by the United States Environmental Protection Agency (EPA) to locate, investigate, and clean up the worst hazardous waste sites throughout the United States. CERCLIS is a database of potential and confirmed hazardous waste sites at which the EPA Superfund program has some involvement. It contains sites that are either proposed to be or are on the National Priorities List (NPL) as well as sites that are in the screening and assessment phase for possible inclusion on the NPL. The EPA administers the Superfund program in cooperation with individual states and tribal governments; this database is made available by the EPA. Government Publication Date: Oct 25, 2013 CERCLIS - No Further Remedial Action Planned:rr-CERCLIS NFRAP-bb An archived site is one at which EPA has determined that assessment has been completed and no further remedial action is planned under the Superfund program at this time. The Archive designation means that, to the best of EPA's knowledge, assessment at a site has been completed and that EPA has determined no further steps will be taken to list this site on the National Priorities List (NPL). This decision does not necessarily mean that there is no hazard associated with a given site; it only means that, based upon available information, the location is not judged to be a potential NPL site. Government Publication Date: Oct 25, 2013 CERCLIS Liens:rr-CERCLIS LIENS-bb A Federal Superfund lien exists at any property where EPA has incurred Superfund costs to address contamination ("Superfund site") and has provided notice of liability to the property owner. A Federal CERCLA ("Superfund") lien can exist by operation of law at any site or property at which EPA has spent Superfund monies. This database is made available by the United States Environmental Protection Agency (EPA). Government Publication Date: Jan 30, 2014 RCRA CORRACTS-Corrective Action:rr-RCRA CORRACTS-bb RCRA Info is EPA's comprehensive information system, providing access to data supporting the Resource Conservation and Recovery Act (RCRA) of 1976 and the Hazardous and Solid Waste Amendments (HSWA) of 1984. At these sites, the Corrective Action Program ensures that cleanups occur. EPA and state regulators work with facilities and communities to design remedies based on the contamination, geology, and anticipated use unique to each site. Government Publication Date: Oct 19, 2020 RCRA non-CORRACTS TSD Facilities:rr-RCRA TSD-bb RCRA Info is EPA's comprehensive information system, providing access to data supporting the Resource Conservation and Recovery Act (RCRA) of 1976 and the Hazardous and Solid Waste Amendments (HSWA) of 1984. This database includes Non-Corrective Action sites listed as treatment, storage and/or disposal facilities of hazardous waste as defined by the Resource Conservation and Recovery Act (RCRA). Government Publication Date: Oct 19, 2020 RCRA Generator List:rr-RCRA LQG-bb RCRA Info is EPA's comprehensive information system, providing access to data supporting the Resource Conservation and Recovery Act (RCRA) of 1976 and the Hazardous and Solid Waste Amendments (HSWA) of 1984. RCRA Info replaces the data recording and reporting abilities of the Resource Conservation and Recovery Information System (RCRIS) and the Biennial Reporting System (BRS). A hazardous waste generator is any person or site whose processes and actions create hazardous waste (see 40 CFR 260.10). Large Quantity Generators (LQGs) generate 1,000 kilograms per month or more of hazardous waste or more than one kilogram per month of acutely hazardous waste. Government Publication Date: Oct 19, 2020 ODI IODI CERCLIS CERCLIS NFRAP CERCLIS LIENS RCRA CORRACTS RCRA TSD RCRA LQG 47 erisinfo.com | Environmental Risk Information Services Order No: 21021400014 RCRA Small Quantity Generators List:rr-RCRA SQG-bb RCRA Info is the EPA's comprehensive information system, providing access to data supporting the Resource Conservation and Recovery Act (RCRA) of 1976 and the Hazardous and Solid Waste Amendments (HSWA) of 1984. RCRA Info replaces the data recording and reporting abilities of the Resource Conservation and Recovery Information System (RCRIS) and the Biennial Reporting System (BRS). A hazardous waste generator is any person or site whose processes and actions create hazardous waste (see 40 CFR 260.10). Small Quantity Generators (SQGs) generate more than 100 kilograms, but less than 1,000 kilograms, of hazardous waste per month. Government Publication Date: Oct 19, 2020 RCRA Very Small Quantity Generators List:rr-RCRA VSQG-bb RCRA Info is the EPA's comprehensive information system, providing access to data supporting the Resource Conservation and Recovery Act (RCRA) of 1976 and the Hazardous and Solid Waste Amendments (HSWA) of 1984. A hazardous waste generator is any person or site whose processes and actions create hazardous waste (see 40 CFR 260.10). Very Small Quantity Generators (VSQG) generate 100 kilograms or less per month of hazardous waste, or one kilogram or less per month of acutely hazardous waste. Additionally, VSQG may not accumulate more than 1,000 kilograms of hazardous waste at any time. Government Publication Date: Oct 19, 2020 RCRA Non-Generators:rr-RCRA NON GEN-bb RCRA Info is EPA's comprehensive information system, providing access to data supporting the Resource Conservation and Recovery Act (RCRA) of 1976 and the Hazardous and Solid Waste Amendments (HSWA) of 1984. RCRA Info replaces the data recording and reporting abilities of the Resource Conservation and Recovery Information System (RCRIS) and the Biennial Reporting System (BRS). A hazardous waste generator is any person or site whose processes and actions create hazardous waste (see 40 CFR 260.10). Non-Generators do not presently generate hazardous waste. Government Publication Date: Oct 19, 2020 Federal Engineering Controls-ECs:rr-FED ENG-bb Engineering controls (ECs) encompass a variety of engineered and constructed physical barriers (e.g., soil capping, sub-surface venting systems, mitigation barriers, fences) to contain and/or prevent exposure to contamination on a property. This database is made available by the United States Environmental Protection Agency (EPA). Government Publication Date: Aug 26, 2020 Federal Institutional Controls- ICs:rr-FED INST-bb Institutional controls are non-engineered instruments, such as administrative and legal controls, that help minimize the potential for human exposure to contamination and/or protect the integrity of the remedy. Although it is EPA's (United States Environmental Protection Agency ) expectation that treatment or engineering controls will be used to address principal threat wastes and that groundwater will be returned to its beneficial use whenever practicable, ICs play an important role in site remedies because they reduce exposure to contamination by limiting land or resource use and guide human behavior at a site. Government Publication Date: Aug 26, 2020 Emergency Response Notification System:rr-ERNS 1982 TO 1986-bb Database of oil and hazardous substances spill reports controlled by the National Response Center. The primary function of the National Response Center is to serve as the sole national point of contact for reporting oil, chemical, radiological, biological, and etiological discharges into the environment anywhere in the United States and its territories. Government Publication Date: 1982-1986 Emergency Response Notification System:rr-ERNS 1987 TO 1989-bb Database of oil and hazardous substances spill reports controlled by the National Response Center. The primary function of the National Response Center is to serve as the sole national point of contact for reporting oil, chemical, radiological, biological, and etiological discharges into the environment anywhere in the United States and its territories. Government Publication Date: 1987-1989 Emergency Response Notification System:rr-ERNS-bb Database of oil and hazardous substances spill reports made available by the United States Coast Guard National Response Center (NRC). The NRC fields initial reports for pollution and railroad incidents and forwards that information to appropriate federal/state agencies for response. These data contain initial incident data that has not been validated or investigated by a federal/state response agency. Government Publication Date: Nov 9, 2020 RCRA SQG RCRA VSQG RCRA NON GEN FED ENG FED INST ERNS 1982 TO 1986 ERNS 1987 TO 1989 ERNS 48 erisinfo.com | Environmental Risk Information Services Order No: 21021400014 The Assessment, Cleanup and Redevelopment Exchange System (ACRES) Brownfield Database:rr-FED BROWNFIELDS-bb Brownfields are real property, the expansion, redevelopment, or reuse of which may be complicated by the presence or potential presence of a hazardous substance, pollutant, or contaminant. Cleaning up and reinvesting in these properties protects the environment, reduces blight, and takes development pressures off greenspaces and working lands. This database is made available by the United States Environmental Protection Agency (EPA). Government Publication Date: Jan 6, 2021 FEMA Underground Storage Tank Listing:rr-FEMA UST-bb The Federal Emergency Management Agency (FEMA) of the Department of Homeland Security maintains a list of FEMA owned underground storage tanks. Government Publication Date: Dec 31, 2017 Petroleum Refineries:rr-REFN-bb List of petroleum refineries from the U.S. Energy Information Administration (EIA) Refinery Capacity Report. Includes operating and idle petroleum refineries (including new refineries under construction) and refineries shut down during the previous year located in the 50 States, the District of Columbia, Puerto Rico, the Virgin Islands, Guam, and other U.S. possessions. Survey locations adjusted using public data. Government Publication Date: Jul 10, 2020 Petroleum Product and Crude Oil Rail Terminals:rr-BULK TERMINAL-bb List of petroleum product and crude oil rail terminals made available by the U.S. Energy Information Administration (EIA). Includes operable bulk petroleum product terminals located in the 50 States and the District of Columbia with a total bulk shell storage capacity of 50,000 barrels or more, and/or the ability to receive volumes from tanker, barge, or pipeline; also rail terminals handling the loading and unloading of crude oil that were active between 2017 and 2018. Petroleum product terminals comes from the EIA-815 Bulk Terminal and Blender Report, which includes working, shell in operation, and shell idle for several major product groupings. Survey locations adjusted using public data. Government Publication Date: Apr 28, 2020 LIEN on Property:rr-SEMS LIEN-bb The EPA Superfund Enterprise Management System (SEMS) provides LIEN information on properties under the EPA Superfund Program. Government Publication Date: Oct 28, 2020 Superfund Decision Documents:rr-SUPERFUND ROD-bb This database contains a listing of decision documents for Superfund sites. Decision documents serve to provide the reasoning for the choice of (or) changes to a Superfund Site cleanup plan. The decision documents include Records of Decision (ROD), ROD Amendments, Explanations of Significant Differences (ESD), along with other associated memos and files. This information is maintained and made available by the US EPA (Environmental Protection Agency). Government Publication Date: Sep 22, 2020 State State Response Sites:rr-RESPONSE-bb A list of identified confirmed release sites where the Department of Toxic Substances Control (DTSC) is involved in remediation, either in a lead or oversight capacity. These confirmed release sites are generally high-priority and high potential risk. This database is state equivalent NPL. Government Publication Date: Jan 13, 2021 EnviroStor Database:rr-ENVIROSTOR-bb The EnviroStor Data Management System is made available by the Department of Toxic Substances Control (DTSC). Includes Corrective Action sites, Tiered Permit sites, Historical Sites and Evaluation/Investigation sites. This database is state equivalent CERCLIS. Government Publication Date: Jan 13, 2021 Delisted State Response Sites:rr-DELISTED ENVS-bb Sites removed from the list of State Response Sites made available by the EnviroStor Data Management System, Department of Toxic Substances Control (DTSC). Government Publication Date: Jan 13, 2021 Solid Waste Information System (SWIS):rr-SWF/LF-bb FED BROWNFIELDS FEMA UST REFN BULK TERMINAL SEMS LIEN SUPERFUND ROD RESPONSE ENVIROSTOR DELISTED ENVS SWF/LF 49 erisinfo.com | Environmental Risk Information Services Order No: 21021400014 The Solid Waste Information System (SWIS) database made available by the Department of Resources Recycling and Recovery (CalRecycle) contains information on solid waste facilities, operations, and disposal sites throughout the State of California. The types of facilities found in this database include landfills, transfer stations, material recovery facilities, composting sites, transformation facilities, waste tire sites, and closed disposal sites. Government Publication Date: Oct 15, 2020 EnviroStor Hazardous Waste Facilities:rr-HWP-bb A list of hazardous waste facilities including permitted, post-closure and historical facilities found in the Department of Toxic Substances Control (DTSC) EnviroStor database. Government Publication Date: Jan 13, 2021 Sites Listed in the Solid Waste Assessment Test (SWAT) Program Report:rr-SWAT-bb In a 1993 Memorandum of Understanding, the State Water Resources Control Board (SWRCB) agreed to submit a comprehensive report on the Solid Waste Assessment Test (SWAT) Program to the California Integrated Waste Management Board (CIWMB). This report summarizes the work completed to date on the SWAT Program, and addresses both the impacts that leakage from solid waste disposal sites (SWDS) may have upon waters of the State and the actions taken to address such leakage. Government Publication Date: Dec 31, 1995 Land Disposal Sites:rr-LDS-bb Land Disposal Sites in GeoTracker, the State Water Resources Control Board (SWRCB)'s data management system. The Land Disposal program regulates of waste discharge to land for treatment, storage and disposal in waste management units. Waste management units include waste piles, surface impoundments, and landfills. Government Publication Date: Nov 16, 2020 Leaking Underground Fuel Tank Reports:rr-LUST-bb List of Leaking Underground Storage Tanks within the Cleanup Sites data in GeoTracker database. GeoTracker is the State Water Resources Control Board's (SWRCB) data management system for managing sites that impact groundwater, especially those that require groundwater cleanup (Underground Storage Tanks, Department of Defense and Site Cleanup Program) as well as permitted facilities such as operating Underground Storage Tanks. The Leak Prevention Program that overlooks LUST sites is the SWRCB in California's Environmental Protection Agency. Government Publication Date: Nov 16, 2020 Delisted Leaking Storage Tanks:rr-DELISTED LST-bb List of Leaking Underground Storage Tanks (LUST) cleanup sites removed from GeoTracker, the State Water Resources Control Board (SWRCB)'s database system, as well as sites removed from the SWRCB's list of UST Case closures. Government Publication Date: Feb 2, 2021 Solid Waste Disposal Sites with Waste Constituents Above Hazardous Waste Levels:rr-SWRCB SWF-bb This is a list of solid waste disposal sites identified by California State Water Resources Control Board with waste constituents above hazardous waste levels outside the waste management unit. Government Publication Date: Sep 20, 2006 Permitted Underground Storage Tank (UST) in GeoTracker:rr-UST-bb List of Permitted Underground Storage Tank (UST) sites made available by the State Water Resources Control Board (SWRCB) in California's Environmental Protection Agency (EPA). Government Publication Date: Nov 16, 2020 Proposed Closure of Underground Storage Tank Cases:rr-UST CLOSURE-bb List of UST cases that are being considered for closure by either the California Environmental Protection Agency, State Water Resources Control Board or the Executive Director that have been posted for a 60-day public comment period. Government Publication Date: Feb 2, 2021 Historical Hazardous Substance Storage Information Database:rr-HHSS-bb The Historical Hazardous Substance Storage database contains information collected in the 1980s from facilities that stored hazardous substances. The information was originally collected on paper forms, was later transferred to microfiche, and recently indexed as a searchable database. When using this database, please be aware that it is based upon self-reported information submitted by facilities which has not been independently verified. It is unlikely that every facility responded to the survey and the database should not be expected to be a complete inventory of all facilities that were operating at that time. This database is maintained by the California State Water Resources Control Board's (SWRCB) Geotracker. Government Publication Date: Aug 27, 2015 HWP SWAT LDS LUST DELISTED LST SWRCB SWF UST UST CLOSURE HHSS 50 erisinfo.com | Environmental Risk Information Services Order No: 21021400014 Aboveground Storage Tanks:rr-AST-bb A statewide list from 2009 of aboveground storage tanks (ASTs) made available by the Cal FIRE Office of the State Fire Marshal (OSFM). This list is no longer maintained or updated by the Cal FIRE OSFM. Government Publication Date: Aug 31, 2009 SWRCB Historical Aboveground Storage Tanks:rr-AST SWRCB-bb A list of aboveground storage tanks made available by the California State Water Resources Control Board (SWRCB). Effective January 1, 2008, the Certified Unified Program Agencies (CUPAs) are vested with the responsibility and authority to implement the Aboveground Petroleum Storage Act (APSA). Government Publication Date: Dec 1, 2007 Oil and Gas Facility Tanks:rr-TANK OIL GAS-bb Locations of oil and gas tanks that fall under the jurisdiction of the Geologic Energy Management Division of the California Department of Conservation (CalGEM) (CCR 1760). CalGEM was formerly the Division of Oil, Gas, and Geothermal Resources (DOGGR). Government Publication Date: Dec 3, 2020 Delisted Storage Tanks:rr-DELISTED TNK-bb This database contains a list of storage tank sites that were removed by the State Water Resources Control Board (SWRCB) in California's Environmental Protection Agency (EPA) and the Cal FIRE Office of State Fire Marshal (OSFM). Government Publication Date: Jan 28, 2021 California Environmental Reporting System (CERS) Tanks:rr-CERS TANK-bb List of sites in the California Environmental Protection Agency (CalEPA) Regulated Site Portal which fall under the Aboveground Petroleum Storage and Underground Storage Tank regulatory programs. The CalEPA oversees the statewide implementation of the Unified Program which applies regulatory standards to protect Californians from hazardous waste and materials. Government Publication Date: Oct 26, 2020 Site Mitigation and Brownfields Reuse Program Facility Sites with Land Use Restrictions:rr-LUR-bb The Department of Toxic Substances Control (DTSC) Site Mitigation and Brownfields Reuse Program (SMBRP) list includes sites cleaned up under the program's oversight and generally does not include current or former hazardous waste facilities that required a hazardous waste facility permit. The list represents land use restrictions that are active. Some sites have multiple land use restrictions. Government Publication Date: Jan 13, 2021 Hazardous Waste Management Program Facility Sites with Deed / Land Use Restrictions:rr-HLUR-bb The Department of Toxic Substances Control (DTSC) Hazardous Waste Management Program (HWMP) has developed a list of current or former hazardous waste facilities that have a recorded land use restriction at the local county recorder's office. The land use restrictions on this list were required by the DTSC HWMP as a result of the presence of hazardous substances that remain on site after the facility (or part of the facility) has been closed or cleaned up. The types of land use restriction include deed notice, deed restriction, or a land use restriction that binds current and future owners. Government Publication Date: Oct 16, 2020 Deed Restrictions and Land Use Restrictions:rr-DEED-bb List of Deed Restrictions, Land Use Restrictions and Covenants in GeoTracker made available by the State Water Resources Control Board (SWRCB) in California's Environmental Protection Agency. A deed restriction (land use covenant) may be required to facilitate the remediation of past environmental contamination and to protect human health and the environment by reducing the risk of exposure to residual hazardous materials. Government Publication Date: Nov 16, 2020 Voluntary Cleanup Program:rr-VCP-bb List of sites in the Voluntary Cleanup Program made available by the Department of Toxic Substances and Control (DTSC). The Voluntary Cleanup Program was designed to respond to lower priority sites. Under the Voluntary Cleanup Program, DTSC enters site-specific agreements with project proponents for DTSC oversight of site assessment, investigation, and/or removal or remediation activities, and the project proponents agree to pay DTSC's reasonable costs for those services. Government Publication Date: Jan 13, 2021 GeoTracker Cleanup Program Sites:rr-CLEANUP SITES-bb A list of Cleanup Program sites in the state of California made available by The State Water Resources Control Board (SWRCB) of the California Environmental Protection Agency (EPA). SWRCB tracks leaking underground storage tank cleanups as well as other water board cleanups. Government Publication Date: Nov 16, 2020 AST AST SWRCB TANK OIL GAS DELISTED TNK CERS TANK LUR HLUR DEED VCP CLEANUP SITES 51 erisinfo.com | Environmental Risk Information Services Order No: 21021400014 Delisted County Records:rr-DELISTED COUNTY-bb Records removed from county or CUPA databases. Records may be removed from the county lists made available by the respective county departments because they are inactive, or because they have been deemed to be below reportable thresholds. Government Publication Date: Jan 29, 2021 Delisted California Environmental Reporting System (CERS) Tanks:rr-DELISTED CTNK-bb This database contains a list of Aboveground Petroleum Storage and Underground Storage Tank sites that were removed from in the California Environmental Protection Agency (CalEPA) Regulated Site Portal. Government Publication Date: Oct 26, 2020 Historical Hazardous Substance Storage Container Information - Facility Summary:rr-HIST TANK-bb The State Water Resources Control Board maintained the Hazardous Substance Storage Containers listing and inventory in th 1980s. This facility summary lists historic tank sites where the following container types were present: farm motor vehicle fuel tanks; waste tanks; sumps; pits, ponds, lagoons, and others; and all other product tanks. This set, published in May 1988, lists facility and owner information, as well as the number of containers. This data is historic and will not be updated. Government Publication Date: May 27, 1988 Tribal Leaking Underground Storage Tanks (LUSTs) on Indian Lands:rr-INDIAN LUST-bb LUSTs on Tribal/Indian Lands in Region 9, which includes California. Government Publication Date: Apr 8, 2020 Underground Storage Tanks (USTs) on Indian Lands:rr-INDIAN UST-bb USTs on Tribal/Indian Lands in Region 9, which includes California. Government Publication Date: Apr 8, 2020 Delisted Tribal Leaking Storage Tanks:rr-DELISTED ILST-bb Leaking Underground Storage Tank facilities which have been removed from the Regional Tribal LUST lists made available by the EPA. Government Publication Date: Apr 14, 2020 Delisted Tribal Underground Storage Tanks:rr-DELISTED IUST-bb Underground Storage Tank facilities which have been removed from the Regional Tribal UST lists made available by the EPA. Government Publication Date: Apr 14, 2020 County San Bernardino County - CUPA List:rr-SANBERN CUPA-bb A list of facilities associated with various Certified Unified Program Agency (CUPA) programs in San Bernardino County. This list is made available by San Bernardino County Fire Department which is the CUPA for all areas of the County except the city of Victorville. Government Publication Date: Dec 2, 2020 Additional Environmental Record Sources Federal PFOA/PFOS Contaminated Sites:rr-PFAS NPL-bb List of sites where PFOA or PFOS contaminants have been found in drinking water or soil. Made available by the Federal Environmental Protection Agency (EPA). Government Publication Date: Nov 18, 2020 DELISTED COUNTY DELISTED CTNK HIST TANK INDIAN LUST INDIAN UST DELISTED ILST DELISTED IUST SANBERN CUPA PFAS NPL 52 erisinfo.com | Environmental Risk Information Services Order No: 21021400014 Facility Registry Service/Facility Index:rr-FINDS/FRS-bb The Facility Registry Service (FRS) is a centrally managed database that identifies facilities, sites, or places subject to environmental regulations or of environmental interest. FRS creates high-quality, accurate, and authoritative facility identification records through rigorous verification and management procedures that incorporate information from program national systems, state master facility records, and data collected from EPA's Central Data Exchange registrations and data management personnel. This list is made available by the Environmental Protection Agency (US EPA). Government Publication Date: Nov 2, 2020 Toxics Release Inventory (TRI) Program:rr-TRIS-bb The EPA's Toxics Release Inventory (TRI) is a database containing data on disposal or other releases of over 650 toxic chemicals from thousands of U. S. facilities and information about how facilities manage those chemicals through recycling, energy recovery, and treatment. One of TRI's primary purposes is to inform communities about toxic chemical releases to the environment. Government Publication Date: Feb 19, 2020 Perfluorinated Alkyl Substances (PFAS) Releases:rr-PFAS TRI-bb List of Toxics Release Inventory (TRI) facilities at which the reported chemical is a Per- or polyfluorinated alkyl substance (PFAS) included in the Environmental Protection Agency (EPA)'s consolidated PFAS Master List of PFAS Substances. The EPA's Toxics Release Inventory (TRI) is a database containing data on disposal or other releases of over 650 toxic chemicals from thousands of U.S. facilities and information about how facilities manage those chemicals through recycling, energy recovery, and treatment. Government Publication Date: Feb 19, 2020 Perfluorinated Alkyl Substances (PFAS) Water Quality:rr-PFAS WATER-bb The Water Quality Portal (WQP) is a cooperative service sponsored by the United States Geological Survey (USGS), the Environmental Protection Agency (EPA), and the National Water Quality Monitoring Council (NWQMC). This listing includes records from the Water Quality Portal where the characteristic (environmental measurement) is in the Environmental Protection Agency (EPA)'s consolidated PFAS Master List of PFAS Substances. Government Publication Date: Jul 20, 2020 Hazardous Materials Information Reporting System:rr-HMIRS-bb US DOT - Department of Transportation Pipeline and Hazardous Materials Safety Administration (PHMSA) Incidents Reports Database taken from Hazmat Intelligence Portal, U.S. Department of Transportation. Government Publication Date: Sep 1, 2020 National Clandestine Drug Labs:rr-NCDL-bb The U.S. Department of Justice ("the Department") provides this data as a public service. It contains addresses of some locations where law enforcement agencies reported they found chemicals or other items that indicated the presence of either clandestine drug laboratories or dumpsites. In most cases, the source of the entries is not the Department, and the Department has not verified the entry and does not guarantee its accuracy. Government Publication Date: Oct 5, 2020 Toxic Substances Control Act:rr-TSCA-bb The Environmental Protection Agency (EPA) is amending the Toxic Substances Control Act (TSCA) section 8(a) Inventory Update Reporting (IUR) rule and changing its name to the Chemical Data Reporting (CDR) rule. The CDR enables EPA to collect and publish information on the manufacturing, processing, and use of commercial chemical substances and mixtures (referred to hereafter as chemical substances) on the TSCA Chemical Substance Inventory (TSCA Inventory). This includes current information on chemical substance production volumes, manufacturing sites, and how the chemical substances are used. This information helps the Agency determine whether people or the environment are potentially exposed to reported chemical substances. EPA publishes submitted CDR data that is not Confidential Business Information (CBI). Government Publication Date: Apr 11, 2019 Hist TSCA:rr-HIST TSCA-bb The Environmental Protection Agency (EPA) is amending the Toxic Substances Control Act (TSCA) section 8(a) Inventory Update Reporting (IUR) rule and changing its name to the Chemical Data Reporting (CDR) rule. The 2006 IUR data summary report includes information about chemicals manufactured or imported in quantities of 25,000 pounds or more at a single site during calendar year 2005. In addition to the basic manufacturing information collected in previous reporting cycles, the 2006 cycle is the first time EPA collected information to characterize exposure during manufacturing, processing and use of organic chemicals. The 2006 cycle also is the first time manufacturers of inorganic chemicals were required to report basic manufacturing information. Government Publication Date: Dec 31, 2006 FTTS Administrative Case Listing:rr-FTTS ADMIN-bb FINDS/FRS TRIS PFAS TRI PFAS WATER HMIRS NCDL TSCA HIST TSCA FTTS ADMIN 53 erisinfo.com | Environmental Risk Information Services Order No: 21021400014 An administrative case listing from the Federal Insecticide, Fungicide, & Rodenticide Act (FIFRA) and Toxic Substances Control Act (TSCA), together known as FTTS. This database was obtained from the Environmental Protection Agency's (EPA) National Compliance Database (NCDB). The FTTS and NCDB was shut down in 2006. Government Publication Date: Jan 19, 2007 FTTS Inspection Case Listing:rr-FTTS INSP-bb An inspection case listing from the Federal Insecticide, Fungicide, & Rodenticide Act (FIFRA) and Toxic Substances Control Act (TSCA), together known as FTTS. This database was obtained from the Environmental Protection Agency's (EPA) National Compliance Database (NCDB). The FTTS and NCDB was shut down in 2006. Government Publication Date: Jan 19, 2007 Potentially Responsible Parties List:rr-PRP-bb Early in the cleanup process, the Environmental Protection Agency (EPA) conducts a search to find the potentially responsible parties (PRPs). EPA looks for evidence to determine liability by matching wastes found at the site with parties that may have contributed wastes to the site. Government Publication Date: Dec 30, 2020 State Coalition for Remediation of Drycleaners Listing:rr-SCRD DRYCLEANER-bb The State Coalition for Remediation of Drycleaners (SCRD) was established in 1998, with support from the U.S. Environmental Protection Agency (EPA) Office of Superfund Remediation and Technology Innovation. Coalition members are states with mandated programs and funding for drycleaner site remediation. Current members are Alabama, Connecticut, Florida, Illinois, Kansas, Minnesota, Missouri, North Carolina, Oregon, South Carolina, Tennessee, Texas, and Wisconsin. Government Publication Date: Nov 08, 2017 Integrated Compliance Information System (ICIS):rr-ICIS-bb The Integrated Compliance Information System (ICIS) is a system that provides information for the Federal Enforcement and Compliance (FE&C) and the National Pollutant Discharge Elimination System (NPDES) programs. The FE&C component supports the Environmental Protection Agency's (EPA) Civil Enforcement and Compliance program activities. These activities include Compliance Assistance, Compliance Monitoring and Enforcement. The NPDES program supports tracking of NPDES permits, limits, discharge monitoring data and other program reports. Government Publication Date: Jan 6, 2021 Drycleaner Facilities:rr-FED DRYCLEANERS-bb A list of drycleaner facilities from Enforcement and Compliance History Online (ECHO) online search. The Environmental Protection Agency (EPA) tracks facilities that possess NAIC and SIC codes that classify businesses as drycleaner establishments. Government Publication Date: Jan 20, 2020 Delisted Drycleaner Facilities:rr-DELISTED FED DRY-bb List of sites removed from the list of Drycleaner Facilities (sites in the EPA's Integrated Compliance Information System (ICIS) with NAIC or SIC codes identifying the business as a drycleaner establishment). Government Publication Date: Jan 20, 2020 Formerly Used Defense Sites:rr-FUDS-bb Formerly Used Defense Sites (FUDS) are properties that were formerly owned by, leased to, or otherwise possessed by and under the jurisdiction of the Secretary of Defense prior to October 1986, where the Department of Defense (DoD) is responsible for an environmental restoration. This list is published by the U.S. Army Corps of Engineers. Government Publication Date: Jan 28, 2020 PHMSA Pipeline Safety Flagged Incidents:rr-PIPELINE INCIDENT-bb A list of flagged pipeline incidents made available by the U.S. Department of Transportation (US DOT) Pipeline and Hazardous Materials Safety Administration (PHMSA). PHMSA regulations require incident and accident reports for five different pipeline system types. Government Publication Date: Jul 7, 2020 Material Licensing Tracking System (MLTS):rr-MLTS-bb A list of sites that store radioactive material subject to the Nuclear Regulatory Commission (NRC) licensing requirements. This list is maintained by the NRC. As of September 2016, the NRC no longer releases location information for sites. Site locations were last received in July 2016. Government Publication Date: Aug 5, 2020 Historic Material Licensing Tracking System (MLTS) sites:rr-HIST MLTS-bb FTTS INSP PRP SCRD DRYCLEANER ICIS FED DRYCLEANERS DELISTED FED DRY FUDS PIPELINE INCIDENT MLTS HIST MLTS 54 erisinfo.com | Environmental Risk Information Services Order No: 21021400014 A historic list of sites that have inactive licenses and/or removed from the Material Licensing Tracking System (MLTS). In some cases, a site is removed from the MLTS when the state becomes an "Agreement State". An Agreement State is a State that has signed an agreement with the Nuclear Regulatory Commission (NRC) authorizing the State to regulate certain uses of radioactive materials within the State. Government Publication Date: Jan 31, 2010 Mines Master Index File:rr-MINES-bb The Master Index File (MIF) contains mine identification numbers issued by the Department of Labor Mine Safety and Health Administration (MSHA) for mines active or opened since 1971. Note that addresses may or may not correspond with the physical location of the mine itself. Government Publication Date: Nov 3, 2020 Alternative Fueling Stations:rr-ALT FUELS-bb List of alternative fueling stations made available by the US Department of Energy's Office of Energy Efficiency & Renewable Energy. Includes Biodiesel stations, Ethanol (E85) stations, Liquefied Petroleum Gas (Propane) stations, Ethanol (E85) stations, Natural Gas stations, Hydrogen stations, and Electric Vehicle Supply Equipment (EVSE). The National Renewable Energy Laboratory (NREL) obtains information about new stations from trade media, Clean Cities coordinators, a Submit New Station form on the Station Locator website, and through collaborating with infrastructure equipment and fuel providers, original equipment manufacturers (OEMs), and industry groups. Government Publication Date: Jan 18, 2021 Registered Pesticide Establishments:rr-SSTS-bb List of active EPA-registered foreign and domestic pesticide-producing and device-producing establishments based on data from the Section Seven Tracking System (SSTS). The Federal Insecticide, Fungicide, and Rodenticide Act (FIFRA) Section 7 requires that facilities producing pesticides, active ingredients, or devices be registered. The list of establishments is made available by the EPA. Government Publication Date: Mar 31, 2020 Polychlorinated Biphenyl (PCB) Notifiers:rr-PCB-bb Facilities included in the national list of facilities that have notified the United States Environmental Protection Agency (EPA) of Polychlorinated Biphenyl (PCB) activities. Any company or person storing, transporting or disposing of PCBs or conducting PCB research and development must notify the EPA and receive an identification number. Government Publication Date: Nov 19, 2020 State Dry Cleaning Facilities:rr-DRYCLEANERS-bb A list of drycleaner related facilities that have EPA ID numbers. These are facilities with certain SIC codes: power laundries, family and commercial, linen supply, commercial laundry, dry cleaning and pressing machines - Coin Operated Laundry and Dry Cleaning. This is provided by the Department of Toxic Substance Control. Government Publication Date: Nov 10, 2020 Delisted Drycleaners:rr-DELISTED DRYCLEANERS-bb Sites removed from the list of drycleaner related facilities that have EPA ID numbers, made available by the California Department of Toxic Substance Control. Government Publication Date: Nov 10, 2020 Non-Toxic Dry Cleaning Incentive Program:rr-DRYC GRANT-bb A list of grant recipients of the Non-Toxic Dry Cleaning Incentive Program made available by the California Air Resources Board (CARB). The program provides grants to eligible dry cleaning businesses to assist them in transitioning away from PERC machines to alternative non-toxic and non-smog forming technologies. Government Publication Date: Feb 28, 2018 Per- and Polyfluoroalkyl Substances (PFAS):rr-PFAS-bb List of sites from the State Water Resources Control Board (SWRCB)'s GeoTracker at which one or more of the potential contaminants of concern are in the PFAS Master List of PFAS Substances made available by the Environmental Protection Agency (US EPA). Government Publication Date: Nov 16, 2020 PFOA/PFOS Groundwater:rr-PFAS GW-bb MINES ALT FUELS SSTS PCB DRYCLEANERS DELISTED DRYCLEANERS DRYC GRANT PFAS PFAS GW 55 erisinfo.com | Environmental Risk Information Services Order No: 21021400014 A list of water wells from the Groundwater Ambient Monitoring and Assessment Program (GAMA) Groundwater Information System with the groundwater chemical perfluorooctanoic acid (PFOA) (NL = 0.014 UG/L) or perfluorooctanoic sulfonate (PFOS) (NL = 0.013 UG/L). The GAMA Groundwater Information System search is made available by California Water Boards. Government Publication Date: Oct 22, 2020 Hazardous Waste and Substances Site List - Site Cleanup:rr-HWSS CLEANUP-bb The Hazardous Waste and Substances Sites (Cortese) List is a planning document used by the State, local agencies and developers to comply with the California Environmental Quality Act requirements in providing information about the location of hazardous materials release sites. This list is published by California Department of Toxic Substance Control. Government Publication Date: Nov 10, 2020 List of Hazardous Waste Facilities Subject to Corrective Action:rr-DTSC HWF-bb This is a list of hazardous waste facilities identified in Health and Safety Code (HSC) § 25187.5. These facilities are those where Department of Toxic Substances Control (DTSC) has taken or contracted for corrective action because a facility owner/operator has failed to comply with a date for taking corrective action in an order issued under HSC § 25187, or because DTSC determined that immediate corrective action was necessary to abate an imminent or substantial endangerment. Government Publication Date: Jul 18, 2016 EnviroStor Inspection, Compliance, and Enforcement:rr-INSP COMP ENF-bb A list of permitted facilities with inspections and enforcements tracked in the Department of Toxic Substance Control (DTSC) EnviroStor. Government Publication Date: Oct 7, 2020 School Property Evaluation Program Sites:rr-SCH-bb A list of sites registered with The Department of Toxic Substances Control (DTSC) School Property Evaluation and Cleanup (SPEC) Division. SPEC is responsible for assessing, investigating and cleaning up proposed school sites. The Division ensures that selected properties are free of contamination or, if the properties were previously contaminated, that they have been cleaned up to a level that protects the students and staff who will occupy the new school. Government Publication Date: Jan 13, 2021 California Hazardous Material Incident Report System (CHMIRS):rr-CHMIRS-bb A list of reported hazardous material incidents, spills, and releases from the California Hazardous Material Incident Report System (CHMIRS). This list has been made available by the California Office of Emergency Services (OES). Government Publication Date: Oct 12, 2020 Hazardous Waste Manifest Data:rr-HAZNET-bb A list of hazardous waste manifests received each year by Department of Toxic Substances Control (DTSC). The volume of manifests is typically 900,000 - 1,000,000 annually, representing approximately 450,000 - 500,000 shipments. Government Publication Date: Oct 24, 2016 Historical California Hazardous Material Incident Report System (CHMIRS):rr-HIST CHMIRS-bb A list of reported hazardous material incidents, spills, and releases from the California Hazardous Material Incident Report System (CHMIRS) prior to 1993. This list has been made available by the California Office of Emergency Services (OES). Government Publication Date: Jan 1, 1993 Historical Hazardous Waste Manifest Data:rr-HIST MANIFEST-bb A list of historic hazardous waste manifests received by the Department of Toxic Substances Control (DTSC) from year the 1980 to 1992. The volume of manifests is typically 900,000 - 1,000,000 annually, representing approximately 450,000 - 500,000 shipments. Government Publication Date: Dec 31, 1992 Historical Cortese List:rr-HIST CORTESE-bb List of sites which were once included on the Cortese list. The Hazardous Waste and Substances Sites (Cortese) List is a planning document used by the State, local agencies and developers to comply with the California Environmental Quality Act requirements for providing information about the location of hazardous sites. Government Publication Date: Nov 13, 2008 Cease and Desist Orders and Cleanup and Abatement Orders:rr-CDO/CAO-bb HWSS CLEANUP DTSC HWF INSP COMP ENF SCH CHMIRS HAZNET HIST CHMIRS HIST MANIFEST HIST CORTESE CDO/CAO 56 erisinfo.com | Environmental Risk Information Services Order No: 21021400014 The California Environment Protection Agency "Cortese List" of active Cease and Desist Orders (CDO) and Cleanup and Abatement Orders (CAO). This list contains many CDOs and CAOs that do NOT concern the discharge of wastes that are hazardous materials. Many of the listed orders concern, as examples, discharges of domestic sewage, food processing wastes, or sediment that do not contain hazardous materials, but the Water Boards' database does not distinguish between these types of orders. Government Publication Date: Feb 16, 2012 California Environmental Reporting System (CERS) Hazardous Waste Sites:rr-CERS HAZ-bb List of sites in the California Environmental Protection Agency (CalEPA) Regulated Site Portal which fall under the following regulatory programs: Hazardous Chemical Management, Hazardous Waste Onsite Treatment, Household Hazardous Waste Collection, Hazardous Waste Generator, RCRA LQ HW Generator. The CalEPA oversees the statewide implementation of the Unified Program which applies regulatory standards to protect Californians from hazardous waste and materials. Government Publication Date: Oct 26, 2020 Delisted Environmental Reporting System (CERS) Hazardous Waste Sites:rr-DELISTED HAZ-bb This database contains a list of sites that were removed from the California Environmental Protection Agency (CalEPA) in the following regulatory programs: Hazardous Chemical Management, Hazardous Waste Onsite Treatment, Household Hazardous Waste Collection, Hazardous Waste Generator, RCRA LQ HW Generator. Government Publication Date: Nov 29, 2018 Sites in GeoTracker:rr-GEOTRACKER-bb GeoTracker is the State Water Resource Control Boards' data management system for sites that impact, or have the potential to impact, water quality in California, with emphasis on groundwater. This is a list of sites in GeoTracker that aren't otherwise categorized as LUST, Land Disposal Sites (LDS), Cleanup Sites, or sites having Waste Discharge Requirements (WDR). This listing includes program types such as Underground Injection Control (UIC), Confined Animal Facilities (CAF), Irrigated Lands Regulatory Program, plans, and non-case information. Government Publication Date: Nov 16, 2020 Waste Discharge Requirements:rr-WASTE DISCHG-bb List of sites in California State Water Resources Control Board (SWRCB) Waste Discharge Requirements (WDRs) Program in California, made available by the SWRCB via GeoTracker. The WDR program regulates point discharges that are exempt pursuant to Subsection 20090 of Title 27 and not subject to the Federal Water Pollution Control Act. The scope of the WDRs Program also includes the discharge of wastes classified as inert, pursuant to section 20230 of Title 27. Government Publication Date: Nov 16, 2020 Toxic Pollutant Emissions Facilities:rr-EMISSIONS-bb A list of criteria and toxic pollutant emissions data for facilities in California made available by the California Environmental Protection Agency - Air Resources Board (ARB). Risk data may be based on previous inventory submittals. The toxics data are submitted to the ARB by the local air districts as requirement of the Air Toxics "Hot Spots" Program. This program requires emission inventory updates every four years. Government Publication Date: Dec 31, 2018 Clandestine Drug Lab Sites:rr-CDL-bb The Department of Toxic Substances Control (DTSC) maintains a listing of drug lab sites. DTSC is responsible for removal and disposal of hazardous substances discovered by law enforcement officials while investigating illegal/clandestine drug laboratories. Government Publication Date: Jun 30, 2018 Tribal No Tribal additional environmental record sources available for this State. County No County additional environmental databases were selected to be included in the search. CERS HAZ DELISTED HAZ GEOTRACKER WASTE DISCHG EMISSIONS CDL 57 erisinfo.com | Environmental Risk Information Services Order No: 21021400014 h-Definitions Database Descriptions:This section provides a detailed explanation for each database including: source, information available, time coverage, and acronyms used. They are listed in alphabetic order. Detail Report:This is the section of the report which provides the most detail for each individual record. Records are summarized by location, starting with the project property followed by records in closest proximity. Distance:The distance value is the distance between plotted points, not necessarily the distance between the sites' boundaries. All values are an approximation. Direction: The direction value is the compass direction of the site in respect to the project property and/or center point of the report. Elevation:The elevation value is taken from the location at which the records for the site address have been plotted. All values are an approximation. Source: Google Elevation API. Executive Summary:This portion of the report is divided into 3 sections: 'Report Summary'- Displays a chart indicating how many records fall on the project property and, within the report search radii. 'Site Report Summary'-Project Property'- This section lists all the records which fall on the project property. For more details, see the 'Detail Report' section. 'Site Report Summary-Surrounding Properties'- This section summarizes all records on adjacent properties, listing them in order of proximity from the project property. For more details, see the 'Detail Report' section. Map Key:The map key number is assigned according to closest proximity from the project property. Map Key numbers always start at #1. The project property will always have a map key of '1' if records are available. If there is a number in brackets beside the main number, this will indicate the number of records on that specific property. If there is no number in brackets, there is only one record for that property. The symbol and colour used indicates 'elevation': the red inverted triangle will dictate 'ERIS Sites with Lower Elevation', the yellow triangle will dictate 'ERIS Sites with Higher Elevation' and the orange square will dictate 'ERIS Sites with Same Elevation.' Unplottables:These are records that could not be mapped due to various reasons, including limited geographic information. These records may or may not be in your study area, and are included as reference. Definitions APPENDIX B HISTORICAL RESOURCES Project Property: Project No: Requested By: Order No: Date Completed: Citrus and Summit Citrus and Summit Fontana CA Weis Environmental, LLC 21021400014 February 14, 2021 Topographic Maps included in this report are produced by the USGS and are to be used for research purposes including a phase I report. Maps are not to be resold as commercial property. No warranty of Accuracy or Liability for ERIS: The information contained in this report has been produced by ERIS Information Inc.(in the US) and ERIS Information Limited Partnership (in Canada), both doing business as 'ERIS', using Topographic Maps produced by the USGS. This maps contained herein does not purport to be and does not constitute a guarantee of the accuracy of the information contained herein. Although ERIS has endeavored to present you with information that is accurate, ERIS disclaims, any and all liability for any errors, omissions, or inaccuracies in such information and data, whether attributable to inadvertence, negligence or otherwise, and for any consequences arising therefrom. Liability on the part of ERIS is limited to the monetary value paid for this report. We have searched USGS collections of current topographic maps and historical topographic maps for the project property. Below is a list of maps found for the project property and adjacent area. Maps are from 7.5 and 15 minute topographic map series, if available. Year Map Series 2015 7.5 1996 7.5 1988 7.5 1980 7.5 1966 7.5 1954 7.5 1941 7.5 1936 7.5 1954 15 1901 15 1898 15 1896 15 2015 Source: USGS 7.5 Minute Topographic Map Order No. 2102140001400.4 0.80.2 Miles Quadrangle(s): Devore,CA 1996 Source: USGS 7.5 Minute Topographic Map Order No. 2102140001400.4 0.80.2 Miles Quadrangle(s): Devore,CA 1988 Source: USGS 7.5 Minute Topographic Map Order No. 2102140001400.4 0.80.2 Miles Quadrangle(s): Devore,CA 1980 Source: USGS 7.5 Minute Topographic Map Order No. 2102140001400.4 0.80.2 Miles Quadrangle(s): Devore,CA 1966 Source: USGS 7.5 Minute Topographic Map Order No. 2102140001400.4 0.80.2 Miles Quadrangle(s): Devore,CA 1954 Source: USGS 7.5 Minute Topographic Map Order No. 2102140001400.4 0.80.2 Miles Quadrangle(s): Devore,CA 1941 Source: USGS 7.5 Minute Topographic Map Order No. 2102140001400.4 0.80.2 Miles Quadrangle(s): Devore,CA 1936 Source: USGS 7.5 Minute Topographic Map Order No. 2102140001400.4 0.80.2 Miles Quadrangle(s): Devore,CA 1954 Source: USGS 15 Minute Topographic Map Order No. 2102140001400.4 0.80.2 Miles Quadrangle(s): San Bernardino,CA 1901 Source: USGS 15 Minute Topographic Map Order No. 2102140001400.4 0.80.2 Miles Quadrangle(s): San Bernardino,CA 1898 Source: USGS 15 Minute Topographic Map Order No. 2102140001400.4 0.80.2 Miles Quadrangle(s): San Bernardino,CA 1896 Source: USGS 15 Minute Topographic Map Order No. 2102140001400.4 0.80.2 Miles Quadrangle(s): San Bernardino,CA APPENDIX C PHOTOGRAPHS Photograph Log Citrus and Summit Fontana, California 1. East parcel view from the southeast corner looking west. Summit Avenue and adjacent residential development is visible. 2. East parcel view from the southeast corner looking north. Florintine Avenue and adjacent residential development is visible. 3. East parcel view from the southeast looking northwest. 4. East parcel. Typical fill material. 5. East parcel. Typical fill material. 6. East parcel view from the northeast looking west. Adjacent residential development is visible. Photograph Log Citrus and Summit Fontana, California 7. East parcel. Concrete rubble. 8. East parcel. Remnant stone structure. 9. East parcel. Remnant concrete slab and stone structure. 10. East parcel. Typical fill material. 11. East parcel view from the southwest corner looking north. Citrus Avenue and adjacent residential development is visible. 12. East parcel view from the southwest corner looking northeast. Photograph Log Citrus and Summit Fontana, California 13. West parcel view from the northeast corner looking south. 14. West parcel view from the northeast corner looking west. 15. West parcel view from the northeast corner looking southwest. 16. West parcel view from the southwest corner looking north. 17. West parcel view from the southwest corner looking northeast. 18. West parcel view from the northeast corner looking south. 19. Western adjacent wall structure (residential development). 20. West parcel view from the southwest corner. 21. Southern adjacent Summit Avenue followed by commercial property. 22. Western parcel view from the southeast corner. 23. Southeast adjacent intersection of Summit and Citrus Avenue followed by a school. 24. Western parcel view from the southwest corner looking north. Photograph Log Citrus and Summit Fontana, California APPENDIX D QUALIFICATIONS Resume Of Dan Weis, R.E.H.S. Environmental Manager Address: 1938 Kellogg Avenue, Suite 116, Carlsbad, CA 92008 Phone: 760.585.7070 | Email:dw@weisenviro.com Professional Summary Environmental Manager and California Registered Environmental Health Specialist with extensive expertise in environmental science and assessment, environmental and public health, risk assessment, health and safety, remedial design and implementation, strategic planning and project/program design and implementation. Over 20 years of professional experience and achievement. Successful completion of projects for a wide range of clientele including, but not limited to, local government entities, developers (affordable housing and market rate), educational institutions, Federal government entities, law firms, architectural and engineering firms, lending institutions, life insurance companies, conservancies, commercial/industrial real estate owners/managers, insurance companies, wireless telecommunication carriers and real estate developers. Extensive experienced in the completion of assessment, construction and remediation quality assurance during the completion of urban redevelopment/brownfields projects and public works projects, many of which have been located in downtown areas of San Diego, Los Angeles, Oakland, San Francisco, and other urban communities throughout the State of California. Proven ability to train and mentor professional, technical and support staff. Manages a comprehensive health and safety program. Holds a Master of Science in Public Health with an emphasis in environmental health science, risk assessment, health and safety, toxicology and environmental policy. Registered Environmental Health Specialist #8172 in the State of California. Education and Professional Certification • University of Delaware, Bachelor of Arts, 1995 • San Diego State University, Master of Science, Public/Environmental Health, 2001 • State of California Registered Environmental Health Specialist #8172 • Centers for Disease Control and Prevention National Center for Environmental Health Division of Emergency and Environmental Health Services - Environmental Health Training in Emergency Response • Occupational Safety and Health Administration (OSHA) 40 Hour Hazardous Waste Operations and Emergency Response Standard (HAZWOPER) Training and Annual 8 Hour HAZWOPER Refresher Training • OSHA 8 Hour HAZWOPER Supervisor Training Relevant Skills and Qualifications • Proven ability to manage staff and programs/projects in challenging and diverse environments and regulatory settings. Consistently meets project schedules, goals, deadlines and budgetary restrictions. • Completed or managed over 3,000 due diligence related environmental assessments and completed or managed over 500 subsurface environmental investigations of soil gas, soil, groundwater and other media. Investigations have included human health and ecological risk assessments, evaluations of indoor air conditions based on interpretations of subsurface conditions, underground storage tank (UST) evaluation/closure and hazardous waste characterization/management. Subsurface activities performed include the completion of soil borings using various drilling technologies, soil and groundwater sampling, installation and sampling of groundwater monitoring wells, free product evaluations, exploratory trenching and real-time delineation using mobile analytical laboratories and other soil screening technology. • Managed over 100 remediation or construction management related projects primarily related to source removal of subsurface contaminants, including but not limited to, petroleum hydrocarbons, chlorinated solvents, heavy metals, organochlorine pesticides and other agricultural related chemicals, dioxins and furans and polychlorinated biphenyls. Has also assisted in cost recovery efforts from private parties and State/Federal funding programs for environmental assessment and remediation work and has served as an expert witness during legal proceedings pertaining to environmental related claims. • Strong collaboration and negotiation skills with environmental regulatory agencies regarding project planning, initiation, status, approvals and implementation. Direct experience in interfacing with members of regulatory agencies including but not limited to the United States Environmental Protection Agency (EPA), California EPA Department of Toxic Substances Control and Office of Environmental Health Hazard Assessment, County of San Diego Departments of Environmental Health (DEH), Public Works and Planning and Land Use, San Diego Air Pollution Control District, South Coast Air Quality Management District, Riverside County DEH, San Francisco City and County Department of Public Health (DPH), Arizona Department of Environmental Quality, County of Los Angeles County DPH and other local Certified Unified Program Agencies. Develop, manage and implement compliance and best practices efforts with Federal and State laws and regulations. • Conducted and/or managed hundreds of public/environmental health related assessments including electromagnetic field surveys, radionuclide surveys, indoor air quality investigations, radon surveys, drinking water assessments, asbestos containing materials and lead-based paint surveys and mold/microbial evaluations. • Recovered over $10,000,000 of assessment and cleanup costs for clientele from various sources including State of California Cleanup Funds, United States Environmental Protection Agency Brownfield grants and private parties including major oil companies. • Responsible for facilitating a safe and healthy work environment in concert with the mission of the company while ensuring compliance with applicable Federal, State, and local regulations. • Published technical papers pertaining to geogenic concentrations of metals in San Diego County, radioactive dating and pollutant chronologies in estuarine sediments and various urban runoff related implications. • Delivered presentations pertaining to various environmental topics including human health risk assessment to membership at local and national trade conferences Project Experience (Projects Completed at Multiple Firms) • 14th and Island, San Diego, California – Development of Site Mitigation Plan, contaminated soil management and disposal concurrent with site construction activities at the superblock construction site in downtown San Diego and achievement of regulatory closure with the County of San Diego Department of Environmental Health. • 2198 Market Street, San Francisco, California – Phase I and II Environmental Site Assessments, supplemental subsurface investigation, Site Mitigation Plan development, contaminated soil management and disposal concurrent with site construction activities and negotiation/achievement of regulatory closure with the City of San Francisco Department of Public Health. • Former EZ Serve, 9305 Mission Gorge Road, Santee, California – Closure report preparation and San Diego Regional Water Quality Control Board interface and negotiation/achievement of regulatory closure under State of California low-threat policy. • French Field – Former Vista Burn Dump, Oceanside, California – Oversight of the capping of a former burn dump/landfill facility and restoration for public use as a sports facility. Negotiation and achievement of regulatory closure with the California Department of Toxic Substances Control with concurrence from the San Diego Regional Water Quality Control Board and the County of San Diego Local Enforcement Agency. • Indoor Skydiving Facility, 1401 Imperial Avenue, San Diego, California – Development of Soil Management Plan and contaminated soil management and disposal concurrent with site construction activities in downtown San Diego. • Lemon Grove Avenue Realignment Project, Lemon Grove, California – Development of Impacted Soil Management Plan, Community Health and Safety Plan and Worker Health and Safety Plan and oversight of the implementation of such plans during construction activities. • North Side Interior Road and Utilities Project at San Diego International Airport, San Diego, California - Subsurface assessment, development of Soil Management Plan and Work Health and Safety Plan and implementation and monitoring of soil management strategies. • Olympic and Hill, Los Angeles, California – Removal of multiple underground storage tanks and underlying contaminated soil and achievement of regulatory closure with the City of Los Angeles Fire Department. • San Ysidro - U.S. Land Port of Entry, San Diego, California – Subsurface assessment and development and implementation of soil management strategies. • VA Medical Center Long Beach, 5901 East 7th Street, Long Beach, California - VA Long Beach: Seismic Corrections – Mental Health, Community Living Center and Chiller Replacements Project – Asbestos containing materials and lead-based paint surveys and preparation of abatement contractor bid specifications. APPENDIX XX2 DESIGN-PHASE GEOTECHNICAL EVALUATION ENGINEERS + GEOLOGISTS + ENVIRONMENTAL SCIENTISTSDESIGN-PHASE GEOTECHNICAL EVALUATION CITRUS AND SUMMIT WEST PROJECT PROPOSED 84-LOT RESIDENTIAL DEVELOPMENT 9-ACRE VACANT SITE AT NORTHWEST CORNER OF CITRUS AND SUMMIT AVENUES CITY OF FONTANA, SAN BERNARDINO COUNTY, CALIFORNIA LENNAR HOMES March 4, 2021 J.N. 21-142 ENGINEERS + GEOLOGISTS + ENVIRONMENTAL SCIENTISTS Offices Strategically Positioned Throughout Southern California RIVERSIDE COUNTY OFFICE 40880 County Center Drive, Suite M, Temecula, CA 92591 T: 951.600.9271 F: 951.719.1499 For more information visit us online at www.petra-inc.com March 4, 2021 J.N. 21-142 LENNAR HOMES 980 Montecito Drive, Suite 302 Corona, California 92879 Attention: Mr. Randy Schroeder Subject: Design-Phase Geotechnical Evaluation Report, Citrus and Summit West Project, Proposed 84-Lot Residential Development, 9-acre Vacant Site at Northwest Corner of Citrus and Summit Avenues, City of Fontana, San Bernardino County, California Dear Mr. Schroeder: In accordance with your request and authorization, Petra Geosciences, Inc. (Petra) is submitting this design-phase geotechnical investigation report for the proposed 84-unit residential development in the city of Fontana, California. The purpose of our evaluation was to obtain available geotechnical and geologic information on the nature of current site conditions, to evaluate the potential geologic constraints that may affect development of the property, and to provide recommendations pertaining to site remedial grading and construction of anticipated site improvements. This report presents the results of our preliminary field exploration, limited laboratory testing, engineering judgment, opinions, conclusions and recommendations pertaining to geotechnical design aspects for the presumed site development. Should you have questions regarding the contents of this report, or should you require additional information, please contact the undersigned. Respectfully submitted, PETRA GEOSCIENCES, INC. ___________________________ Grayson R. Walker, GE Principal Engineer LENNAR HOMES March 4, 2021 Citrus and Summit Wets Project / Fontana J.N. 21-142 TABLE OF CONTENTS Page INTRODUCTION ......................................................................................................................................................... 1 SCOPE OF WORK ....................................................................................................................................................... 1 LOCATION AND SITE DESCRIPTION ..................................................................................................................... 2 PROPOSED DEVELOPMENT AND GRADING ....................................................................................................... 2 EVALUATION METHODOLOGY ............................................................................................................................. 2 Literature and Aerial Photo Review ................................................................................................................... 2 Field Exploration and Testing ............................................................................................................................ 3 Laboratory Testing ............................................................................................................................................. 3 FINDINGS .................................................................................................................................................................... 3 Regional Geologic Setting ................................................................................................................................. 3 Local Geology and Subsurface Soil Conditions ................................................................................................. 4 Groundwater ....................................................................................................................................................... 4 Faulting .............................................................................................................................................................. 4 Secondary Seismic Effects ................................................................................................................................. 5 Liquefaction and Seismically-Induced Settlement ............................................................................................. 5 Compressible Near-Surface Soils ....................................................................................................................... 5 CONCLUSIONS AND RECOMMENDATIONS ........................................................................................................ 6 General ............................................................................................................................................................... 6 Earthwork Recommendations .................................................................................................................................. 6 General Earthwork Recommendations ............................................................................................................... 6 Geotechnical Observations and Testing ............................................................................................................. 6 Clearing and Grubbing ....................................................................................................................................... 6 Excavation Characteristics ................................................................................................................................. 7 Ground Preparation .................................................................................................................................................. 7 Unsuitable Soil Removals .................................................................................................................................. 7 Overexcavation of Cut and Cut-Fill Transition Lots .......................................................................................... 7 Suitability of Site Soils as Fill ............................................................................................................................ 8 Oversize Rock .................................................................................................................................................... 8 Fill Placement .................................................................................................................................................... 8 Import Soils for Grading .................................................................................................................................... 8 Soil Shrinkage .................................................................................................................................................... 9 Temporary Excavations...................................................................................................................................... 9 Geotechnical Observations ............................................................................................................................... 10 TENTATIVE FOUNDATION DESIGN GUIDELINES ............................................................................................ 10 Seismic Design Parameters .............................................................................................................................. 10 Allowable Bearing Capacity, Estimated Settlement and Lateral Resistance ......................................................... 12 Allowable Soil Bearing Capacities................................................................................................................... 12 Estimated Footing Settlement .......................................................................................................................... 12 Lateral Resistance ............................................................................................................................................ 12 Guidelines for Footings and Slabs on-Grade Design and Construction ................................................................. 13 Conventional Slab-on-Grade System ............................................................................................................... 13 Foundation Excavation Observations ............................................................................................................... 15 Foundation Concrete Over-Pour ...................................................................................................................... 16 General Corrosivity Screening ............................................................................................................................... 16 Preliminary Infiltration Rate .................................................................................................................................. 17 Infiltration Test Results .................................................................................................................................... 17 Post-Grading Considerations ................................................................................................................................. 18 Precise Grading and Drainage .......................................................................................................................... 18 Utility Trench Backfill ..................................................................................................................................... 19 LENNAR HOMES March 4, 2021 Citrus and Summit Wets Project / Fontana J.N. 21-142 TABLE OF CONTENTS Page Masonry Block Screen Walls ................................................................................................................................. 20 Construction on Level Ground ......................................................................................................................... 20 Construction Joints ........................................................................................................................................... 20 Retaining Walls ...................................................................................................................................................... 20 Footing Embedment ......................................................................................................................................... 20 Allowable Soil Bearing Capacity ..................................................................................................................... 20 Lateral Resistance ............................................................................................................................................ 20 Active Earth Pressures ..................................................................................................................................... 21 Geotechnical Observation and Testing ............................................................................................................. 21 Backdrains ........................................................................................................................................................ 21 Waterproofing .................................................................................................................................................. 22 Wall Backfill .................................................................................................................................................... 22 Preliminary Pavement Section ............................................................................................................................... 22 Exterior Concrete Flatwork .................................................................................................................................... 23 General ............................................................................................................................................................. 23 Thickness and Joint Spacing ............................................................................................................................ 23 Reinforcement .................................................................................................................................................. 24 Edge Beams (Optional) .................................................................................................................................... 24 Subgrade Preparation ....................................................................................................................................... 24 Drainage ........................................................................................................................................................... 25 Tree Wells ........................................................................................................................................................ 25 GRANDING AND FINAL PLAN REVIEWS ............................................................................................................ 25 REPORT LIMITATIONS ........................................................................................................................................... 26 REFERENCES ............................................................................................................................................................ 27 ATTACHMENTS FIGURE RW-1 – RETAINING WALL DETAIL FIGURE 1 – SITE LOCATION MAP FIGURE 2 – EXPLORATION LOCATION MAP APPENDIX A – FIELD EXPLORATION LOGS (TEST PITS) APPENDIX B – LABORATORY TEST PROCEDURES / LABORATORY DATA SUMMARY APPENDIX C – FIELD INFILTRATION TEST DATA APPENDIX D – STANDARD GRADING SPECIFICATIONS DESIGN-PHASE GEOTECHNICAL EVALUATION CITRUS AND SUMMIT WEST PROJECT, PROPOSED 84-LOT RESIDENTIAL DEVELOPMENT, 9-ACRE VACANT SITE AT NORTHWEST CORNER OF CITRUS AND SUMMIT AVENUES, CITY OF FONTANA, SAN BERNARDINO COUNTY, CALIFORNIA INTRODUCTION Petra Geosciences, Inc. (Petra) is presenting herein the results of our design-phase geotechnical evaluation for the proposed development of an 84-unit residential tract situated at the northwest corner of Citrus and Summit Avenues in the city of Fontana, California. The purpose of this study was to obtain preliminary information on the general geologic and geotechnical conditions within the project area in order to provide conclusions and recommendations for the feasibility of the proposed project and preliminary geotechnical recommendations for site grading and improvements. Our geotechnical evaluation included a review of geological maps and data for the site and surrounding area, excavation of exploratory test pits, conduct one onsite falling-head percolation test, laboratory testing, and geologic and engineering analysis. SCOPE OF WORK The scope of our evaluation consisted of the following. •Review of available published and unpublished data and geotechnical reports concerning geologic and soil conditions within the site and nearby area, that could have an impact on the proposed development. •Review readily available aerial photographs of the site and surrounding area. •Coordinate with the local underground utility locating service (i.e., Underground Service Alert [USA]) to obtain an underground-utility clearance prior to commencement of the subsurface exploration. •Geotechnical excavation, logging, and sampling of eight (8) exploratory test pits utilizing a conventional backhoe. Log and visually classify soil and materials encountered in our borings in accordance with the Unified Soil Classification System (USCS). •Perform one (1) falling-head field percolation test at the bottom of a test pit for preliminary infiltration design. •Conduct laboratory testing of representative samples (bulk and undisturbed) to determine their engineering properties. •Engineering and geologic analysis of the research, field exploration findings and laboratory data with respect to the proposed site development. •Preparation of this geotechnical report presenting the results of our evaluation and providing recommendations for the proposed site development in general conformance with the requirements of the 2019 California Building Code (2019 CBC), as well as in accordance with applicable state and local jurisdictional requirements. LENNAR HOMES March 4, 2021 Citrus and Summit West Project / Fontana J.N. 21-142 Page 2 LOCATION AND SITE DESCRIPTION The site is situated at the northwest corner of Citrus and Summit Avenues in the city of Fontana. The approximately 9-acre parcel is currently vacant and bounded by Citrus Avenue on the east, existing masonry block walls on the north and west, and Summit Avenue on the south. Sidewalks and streetlights are also present along the eastern and southern boundaries and underground dry utility and water pipelines may also be present in these areas. Residential construction is currently in progress to the north and west of the perimeter masonry walls. Portions of the undeveloped site are covered with dry grasses and low-height brush/small trees, more prominently in the northern approximately one-third of the site. Several large stumps are present in the northeast corner and scattered trash, construction debris and materials have been dumped in random areas across the site. The property descends at a low gradient towards the south. The surficial soils across the site are generally loose and dry with some cobbles and occasional boulders exposed on the ground surface. A small stockpile of imported soil was observed in the southeast corner of the site. PROPOSED DEVELOPMENT AND GRADING Although conceptual grading plans are not available, the planned development will consist of 84 residential two-story units with attached garages and appurtenant interior alleyways and drive aisles. Anticipated ancillary site improvements include underground utilities, perimeter walls, subsurface storm water facilities, a recreation site and landscaping. The proposed grading is expected to entail shallow cuts and fills on the order of 1 to 3 feet from existing grades. Notable cut or fill slopes are not anticipated. EVALUATION METHODOLOGY Literature and Aerial Photo Review Petra researched and reviewed available published and unpublished geologic data pertaining to regional geology, faulting and geologic hazards that may affect the site, as well as our previous geotechnical reports in the immediate area (see References). Available online aerial imagery and historic aerial photos were reviewed to assess previous land use. Based on historic aerial photo information obtained during this assessment, the subject site appears to have been vacant, undisturbed land to around 2002 when a rock crushing operation was established. The operation appears to be in operation until 2005 when the last of the equipment and stockpiles were removed. In 2006-2007 portions of the site appear to be used for local construction staging and the site appears essentially unchanged since circa 2007. LENNAR HOMES March 4, 2021 Citrus and Summit West Project / Fontana J.N. 21-142 Page 3 Field Exploration and Testing A subsurface exploration program was conducted under the supervision of an engineering geologist from Petra on February 22, 2021 that included excavation of eight (8) exploratory test pits to a general depth of approximately 5.5 feet below existing surface grades with one test pit excavated to a maximum depth of approximately 10 feet. The fieldwork also included the excavation of a test trench to a depth of approximately 5 feet below existing grade for the purpose of performing a falling-head percolation test (P-1) near the proposed water quality facilities. A conventional backhoe was utilized to excavate the test trenches and the test pits were all loosely backfilled. Additionally, to further evaluate the shallow subsurface soil materials exposed in the test pits, in-situ density testing was conducted during test pit excavation using the nuclear gauge test method ASTM D6938. Existing soils were tested at varying depths between 2 and 5 feet below the ground surface (bgs). Test results are presented on the test pit logs in Appendix A, however due to the variable cobble to boulder content, the in-situ density test data indicated on the logs should not be considered absolute values. Earth materials encountered were classified and logged in accordance with the visual-manual procedures of the Unified Soil Classification System (USCS) and the approximate locations of the exploratory test pits are shown on the attached Figure 2 and descriptive logs of the test pits are presented in Appendix A. Subsurface exploration also included the collection of bulk samples of soil materials for classification, laboratory testing and geotechnical engineering analyses. Laboratory Testing Laboratory testing for selected samples of onsite soils materials included maximum dry density and optimum moisture content determination and general soil corrosion potential (sulfate content, chloride content, pH/resistivity). A description of laboratory test methods and laboratory testing are presented in Appendix B. FINDINGS Regional Geologic Setting The subject property is situated within the Peninsular Ranges Geomorphic Province on the proximal portion of a large alluvial fan that extends southward from the flanks of the adjacent San Gabriel Mountains to the north. Bedrock underlying the site at depth is part of the Perris Block and is composed of granitic and metamorphic crystalline rock that is Cretaceous in age or older. The Perris Block is separated from adjacent LENNAR HOMES March 4, 2021 Citrus and Summit West Project / Fontana J.N. 21-142 Page 4 crustal blocks by major faults and is bounded on the northeast by the San Jacinto fault zone and on the north by the Cucamonga fault and the San Gabriel Mountains. The southwesterly edge of the block is marked by the northward extension of the Chino-Elsinore fault system. In closer proximity, the subject site is located adjacent to the San Gabriel Mountains and westerly of Lytle Creek. The local area alluvial-fan deposits reportedly extend up to a depth of roughly 100 to 300 feet beneath the site. Local Geology and Subsurface Soil Conditions Earth units encountered within our field evaluation consisted of surficial undocumented fill, a minor occurrence of topsoil, and natural alluvial fan deposits. The onsite soil units are discussed in detail below. • Surficial Topsoil and Undocumented Fill – Topsoil and undocumented fill were observed over most of the site overlying native alluvial fan deposits. The topsoil and fill were found to range in depth from approximately 0.5 to 2.0 feet. These soils were generally composed of silty fine to medium sand with gravels and occasional small cobbles, which was dry to damp, loose, slightly porous and frequent thin roots. • Alluvial Fan Deposits – Alluvial fan deposits were observed beneath the topsoil and fill at all test pit locations. The alluvial fan deposits generally consisted of gravelly fine to coarse- sand with silt to sandy gravel with abundant subrounded cobbles, generally on the order of 5 to 15 percent and occasionally up to 20 percent. Occasional boulders from about 12 to 20 inches in diameter were estimated to be generally on the order of 2 percent and locally up to 5 percent. These fan deposits were locally weathered and generally medium dense within about the upper 0.5 to 1 foot with increasing density with depth. Boulders larger than 20 inches in diameter may be occasionally encountered within shallow cuts and should be expected in deeper excavations. Groundwater Neither groundwater nor seepage was encountered in the test pits during our subsurface exploration. Based on our interpretation of published geotechnical literature, the depth to local area groundwater varies from 200 to 300 feet below ground surface (bgs). Groundwater is not anticipated to affect the proposed development. Faulting The geologic structure of the southern California area is dominated mainly by northwest-trending faults associated with the San Andreas system. Faults, such as the Newport-Inglewood, Whittier, Elsinore, San Jacinto and San Andreas, are major faults in this system and are known to be active. In addition, the San Andreas, Elsinore and San Jacinto faults are known to have ruptured the ground surface in historic times. LENNAR HOMES March 4, 2021 Citrus and Summit West Project / Fontana J.N. 21-142 Page 5 Based on our review of published and unpublished geotechnical maps and literature pertaining to site and regional geology, the closest active faults to the site are the Cucamonga fault located approximately 1.3 miles to the north and the Lytle Creek fault located approximately 2.1 miles to the east. Based on this firm's review of the referenced geologic literature no active faults appear to project through or toward the site, nor does the site lie within an Alquist-Priolo Earthquake Fault Hazard Zone. Additionally, based on historic aerial photos, no lineaments appear to cross through the property. The potential for active fault rupture at the site is considered to be very low. Secondary Seismic Effects Secondary effects of seismic activity normally considered as possible hazards to a site include several types of ground failure. Various general types of ground failures, which might occur as a consequence of severe ground shaking at the site, include ground subsidence, ground lurching and lateral spreading. The probability of occurrence of each type of ground failure depends on the severity of the earthquake, distance from faults, topography, subsoil and groundwater conditions, in addition to other factors. The potential for ground lurching and lateral spreading are considered very low. The potential for seismically-induced flooding due to tsunami or seiche (i.e., a wave-like oscillation of the surface of water in an enclosed basin) is considered negligible at this site. Liquefaction and Seismically-Induced Settlement Liquefaction is the transformation of a cohesionless soil from a solid to a liquid state caused by an increase in pore pressure and a reduction of effective stress. Liquefaction can occur when loose saturated cohesionless (sandy) soils are subjected to strong ground motion during an earthquake. Typically, liquefaction occurs in areas where groundwater lies within the upper 50 feet of the ground surface. The site in not located within a San Bernardino County Liquefaction Zone. In addition, due to the gravelly to cobbly nature of the underlying alluvial-fan materials, as well as the depth to groundwater expected to be deeper than 200 feet bgs, the potential for liquefaction is considered to be very low. Thus, neither liquefaction nor dynamic settlement should be considered as major geotechnical concerns for site development. Compressible Near-Surface Soils A geotechnical factor affecting the project site is the presence of shallow topsoil/fills and low-density and dry, near-surface alluvial fan deposits. Such materials in their present state are not considered suitable for support of fill or structural loads. Accordingly, these materials will require removal to competent alluvial fan deposits as observed by the geotechnical consultant and replacement as properly moisture-conditioned and compacted fill. LENNAR HOMES March 4, 2021 Citrus and Summit West Project / Fontana J.N. 21-142 Page 6 CONCLUSIONS AND RECOMMENDATIONS General From a geotechnical engineering and engineering geologic point of view, the subject property is considered suitable for the proposed grading and development provided the following conclusions and recommendations are incorporated into the design criteria and project specifications and implemented during construction. Earthwork Recommendations General Earthwork Recommendations Earthwork should be performed in accordance with the Grading Code of the City of Fontana and with the applicable provisions of the 2019 California Building Code (CBC). Grading should also be performed in accordance with the following site-specific recommendations prepared by Petra based on the proposed construction. Geotechnical Observations and Testing Prior to the start of earthwork, a meeting should be held at the site with the owner, contractor and geotechnical consultant to discuss the work schedule and geotechnical aspects of the grading. Earthwork, which in this instance will generally entail removal and re-compaction of the near surface soils, should be accomplished under full-time observation and testing of the geotechnical consultant. A representative of the project geotechnical consultant should be present onsite during all earthwork operations to document placement and compaction of fills, as well as to document compliance with the other recommendations presented herein. Clearing and Grubbing Clearing operations will include the removal of all existing vegetation, shrubs, stumps any existing dumped trash or construction debris, oversize boulders, or deleterious materials. All weeds, grasses, bush, shrubs, tree stumps etc. existing within areas to be graded should be stripped and removed from the site. Any deleterious materials encountered within the site may need to be removed by hand (i.e. by root pickers) during the grading operations. The project geotechnical consultant should provide periodic observation services during clearing and grubbing operations to document compliance with the above recommendations. In addition, should unusual or adverse soil conditions or buried structures be encountered during grading that are not described herein, LENNAR HOMES March 4, 2021 Citrus and Summit West Project / Fontana J.N. 21-142 Page 7 these conditions should be brought to the immediate attention of the project geotechnical consultant for corrective recommendations. Excavation Characteristics The existing site soils can be readily excavated with conventional earthmoving equipment, however, oversize rocks, those exceeding 12 inches in maximum dimension, are very likely to be encountered during grading. Ground Preparation Unsuitable Soil Removals All existing surficial soils (topsoil and undocumented fills) are considered unsuitable in their current state for support of proposed fills, structures, flatwork, pavement or other improvements. These materials should be removed to underlying competent alluvial fan deposits, as approved by the project geotechnical consultant. Remedial removals are estimated to be approximately 3 to 4 feet below existing grades to expose competent alluvial fan deposits, however, soil removals may also need to be locally deeper depending upon the exposed conditions encountered during grading. The actual depths and horizontal limits of removals and over-excavations should be evaluated during grading on the basis of observations and testing performed by the project geotechnical consultant. Prior to placing engineered fill, all exposed removal bottom surfaces in the building pad areas should be heavily watered (flooded), as necessary, to achieve moisture conditions at least two percent above optimum and then compacted in-place to a relative compaction of 90 percent or more based on ASTM D1557. Horizontal limits of removals should extend across the entire level portion of the lot. Overexcavation of Cut and Cut-Fill Transition Lots Lots located entirely in cut and/or cut/fill transitions should be eliminated from building pad areas to reduce the detrimental effects of differential settlement. Cut and transient lots should be overexcavated to a minimum of 3 feet below proposed finished pad grade elevations and replaced as properly compacted fill. Prior to placing engineered fill, all exposed overexcavation bottom surfaces in the building pad areas should be heavily watered (flooded), as necessary, to achieve moisture conditions at least two percent above optimum and then compacted in-place to a relative compaction of 90 percent or more based on ASTM D1557. Horizontal limits of over-excavation should extend across the entire level portion of the lot. LENNAR HOMES March 4, 2021 Citrus and Summit West Project / Fontana J.N. 21-142 Page 8 Suitability of Site Soils as Fill Site soils are suitable for use in engineered fills provided they are clean from any organics, debris and oversize rocks/boulders greater than 18 to 24 inches in diameter, which is discussed in the following section. Oversize boulders between 12 and 20 inches in diameter are likely to be encountered during remedial grading and may be incorporated within specified depths of the engineered fills as discussed in the following section. Oversize Rock Removals and over-excavation during grading are expected to produce oversize rock on the order of 12 to 20 inches in diameter. Oversize rock is defined as rock or irreducible rock fragments greater than 12 inches in maximum diameter. Rock up to 12 inches in diameter may be placed with the upper 3 feet of the building pads in a manner to avoid nesting. Oversize rock up to 18 inches in diameter may be placed deeper than 3 feet below finished pad grades in a manner to avoid nesting and then completely covered/mixed with granular soil materials. Oversize rock between 18 and 24 inches in diameter may be placed deeper than 5 feet below finish pad grades in a manner to avoid nesting and then completely covered/mixed with granular soil materials. As with the placement of all oversized rock in engineered fills, the granular materials should be watered and/or jetted around the rock to assure the infilling of all voids. Due to the anticipated relatively shallow fills onsite, i.e., generally expected to be less than 5 feet in depth, exporting of all oversize rock greater than 18 inches should be anticipated. The grading contactor should provide either a screening operation to remove oversize rocks from the fill soils or utilize mechanical removal of oversize rocks from the fill areas by heavy equipment equipped with rock rakes or similar equipment. Fill Placement Fill materials for building pad areas should be placed in approximately 6- to 8-inch thick loose lifts, watered or air-dried as necessary to achieve a moisture content of at least 2 percent above the optimum moisture condition, and then compacted in-place to a minimum relative compaction of 90 percent. The laboratory maximum dry density and optimum moisture content for each change in soil type should be determined in accordance with ASTM D1557. Import Soils for Grading If imported soils are needed to achieve final design grades, the soils should be free of deleterious materials, oversize rock and any hazardous materials. Additionally, the soils should also be non-expansive (i.e. have LENNAR HOMES March 4, 2021 Citrus and Summit West Project / Fontana J.N. 21-142 Page 9 “very low” expansion potential) and essentially non-corrosive and approved by the project geotechnical consultant prior to being brought onsite. The geotechnical consultant should inspect the potential borrow site and conduct testing of the soil at least three days before the commencement of import operations. Soil Shrinkage Volumetric changes in earth quantities will occur when excavated onsite soils are replaced as engineered fill. Based on similar soil conditions in the nearby area, we estimated the soil shrinkage factor to be on the order of 10 to 15 percent for soil removed and replaced as compacted fill and a subsidence factor of 0.1 foot during recompaction of removal bottom or overexcavation surfaces. Also note that volume associated with the removal of oversize rocks greater than 18 to 24 inches from the site in the course of planned removals, over-excavations and/or deep utility trenching should also be accounted for in determining final earthwork quantities. The estimate of shrinkage is intended as an aid for project engineers in determining earthwork quantities, however, this estimate should not be considered as absolute values and should be used with some caution. Contingencies should be made for balancing earthwork quantities based on actual shrinkage that occurs during the grading operations. Temporary Excavations Temporary excavations up to a depth of 4 feet below existing grades may be required to accommodate the recommended overexcavation. Based on the physical properties of the onsite soils, temporary excavations which are constructed exceeding 4 feet in height should be cut back to an inclination of 1:1 (h:v) or flatter for the duration of the overexcavation of unsuitable soil material and replacement as compacted fill, as well as placement of underground utilities. However, the temporary excavations should be observed by a representative of the project geotechnical consultant for evidence of potential instability. Depending on the results of these observations, revised slope configurations may be necessary. Other factors which should be considered with respect to the stability of the temporary slopes include construction traffic and/or storage of materials on or near the tops of the slopes, construction scheduling, presence of nearby walls or structures on adjacent properties and weather conditions at the time of construction. Applicable requirements of the California Construction and General Industry Safety Orders, the Occupational Safety and Health act of 1970 and the Construction Safety Act should also be followed. LENNAR HOMES March 4, 2021 Citrus and Summit West Project / Fontana J.N. 21-142 Page 10 Geotechnical Observations Observation of clearing operations, overexcavation of unsuitable surficial materials, fill placement, cut and fill slope construction and general grading procedures should be performed by the project geotechnical consultant. Fills should not be placed without prior observation and approval of the removal/overexcavation bottom surfaces by the geotechnical consultant. The project geotechnical consultant or his representative should be present onsite during grading operations to observe and document proper placement and compaction of fill, as well as to observe and document compliance with the other recommendations presented herein. TENTATIVE FOUNDATION DESIGN GUIDELINES Seismic Design Parameters Earthquake loads on earthen structures and buildings are a function of ground acceleration which may be determined from the site-specific ground motion analysis. Alternatively, a design response spectrum can be developed for certain sites based on the code guidelines. To provide the design team with the parameters necessary to construct the design acceleration response spectrum for this project, we used two computer applications. Specifically, the first computer application, which was jointly developed by Structural Engineering Association of California (SEAOC) and California’s Office of Statewide Health Planning and Development (OSHPD), the SEA/OSHPD Seismic Design Maps Tool website, https://seismicmaps.org, is used to calculate the ground motion parameters. The second computer application, the United Stated Geological Survey (USGS) Unified Hazard Tool website, https://earthquake.usgs.gov/hazards/interactive/, is used to estimate the earthquake magnitude and the distance to surface projection of the fault. To run the above computer applications, site latitude and longitude, seismic risk category and knowledge of site class are required. The site class definition depends on the direct measurement and the ASCE 7-16 recommended procedure for calculating average small-strain shear wave velocity, Vs30, within the upper 30 meters (approximately 100 feet) of site soils. A seismic risk category of II was assigned to the proposed building in accordance with 2019 CBC, Table 1604.5. A seismic shear-wave survey was performed by a subconsultant of Petra approximately 100 feet north of the site on August 6, 2020 (Petra, 2020). An average shear-wave velocity (“weighted average”) in the upper 100 feet of the subject survey area is 2,013 feet per second based on the geophysical testing. As such, in accordance with ASCE 7-16, Table 20.3-1, Site Class C has been deemed appropriate to the general area. The following table, Table 1, provides parameters required to construct the seismic response coefficient, Cs, curve based on ASCE 7-16, Article 12.8 guidelines. LENNAR HOMES March 4, 2021 Citrus and Summit West Project / Fontana J.N. 21-142 Page 11 TABLE 1 Seismic Design Parameters Ground Motion Parameters Specific Reference Parameter Value Unit Site Latitude (North) - 34.1514 ° Site Longitude (West) - -117.4547 ° Site Class Definition Section 1613.2.2 (1), Chapter 20 (2) C (4) - Assumed Seismic Risk Category Table 1604.5 (1) II - Mw - Earthquake Magnitude USGS Unified Hazard Tool (3) 7.9 (3) - R – Distance to Surface Projection of Fault USGS Unified Hazard Tool (3) 2.1 (3) km Ss - Mapped Spectral Response Acceleration Short Period (0.2 second) Figure 1613.2.1(1) (1) 2.075 (4) g S1 - Mapped Spectral Response Acceleration Long Period (1.0 second) Figure 1613.2.1(2) (1) 0.679 (4) g Fa – Short Period (0.2 second) Site Coefficient Table 1613.2.3(1) (1) 1.2 (4) - Fv – Long Period (1.0 second) Site Coefficient Table 1613.2.3(2) (1) 1.4 (4) - SMS – MCER Spectral Response Acceleration Parameter Adjusted for Site Class Effect (0.2 second) Equation 16-36 (1) 2.49 (4) g SM1 - MCER Spectral Response Acceleration Parameter Adjusted for Site Class Effect (1.0 second) Equation 16-37 (1) 0.95 (4) g SDS - Design Spectral Response Acceleration at 0.2-s Equation 16-38 (1) 1.66 (4) g SD1 - Design Spectral Response Acceleration at 1-s Equation 16-39 (1) 0.633 (4) g To = 0.2 SD1/ SDS Section 11.4.6 (2) 0.076 s Ts = SD1/ SDS Section 11.4.6 (2) 0.381 s TL - Long Period Transition Period Figure 22-14 (2) 12 (4) s PGA - Peak Ground Acceleration at MCEG (*) Figure 22-9 (2) 0.846 g FPGA - Site Coefficient Adjusted for Site Class Effect (2) Table 11.8-1 (2) 1.2 (4) - PGAM –Peak Ground Acceleration (2) Adjusted for Site Class Effect Equation 11.8-1 (2) 1.015 (4) g Design PGA ≈ (⅔ PGAM) - Slope Stability (†) Similar to Eqs. 16-38 & 16-39 (2) 0.67 g Design PGA ≈ (0.4 SDS) – Short Retaining Walls (‡) Equation 11.4-5 (2) 0.66 g CRS - Short Period Risk Coefficient Figure 22-18A (2) 0.912 (4) - CR1 - Long Period Risk Coefficient Figure 22-19A (2) 0.891 (4) - SDC - Seismic Design Category (§) Section 1613.2.5 (1) D (4) - References: (1) California Building Code (CBC), 2019, California Code of Regulations, Title 24, Part 2, Volume I and II. (2) American Society of Civil Engineers/Structural Engineering Institute (ASCE/SEI), 2016, Minimum Design Loads and Associated Criteria for Buildings and Other Structures, Standards 7-16. (3) USGS Unified Hazard Tool - https://earthquake.usgs.gov/hazards/interactive/ (4) SEI/OSHPD Seismic Design Map Application – https://seismicmaps.org Related References: Federal Emergency Management Agency (FEMA), 2015, NEHERP (National Earthquake Hazards Reduction Program) Recommended Seismic Provision for New Building and Other Structures (FEMA P-1050). Notes: * PGA Calculated at the MCE return period of 2475 years (2 percent chance of exceedance in 50 years). † PGA Calculated at the Design Level of ⅔ of MCE; approximately equivalent to a return period of 475 years (10 percent chance of exceedance in 50 years). ‡ PGA Calculated for short, stubby retaining walls with an infinitesimal (zero) fundamental period. § The designation provided herein may be superseded by the structural engineer in accordance with Section 1613.2.5.1, if applicable. LENNAR HOMES March 4, 2021 Citrus and Summit West Project / Fontana J.N. 21-142 Page 12 Allowable Bearing Capacity, Estimated Settlement and Lateral Resistance Allowable Soil Bearing Capacities Pad Footings An allowable soil bearing capacity of 1,500 pounds per square foot may be utilized for design of isolated 24-inch-square footings founded at a minimum depth of 12 inches below the lowest adjacent final grade for pad footings that are not a part of the slab system and are used for support of such features as roof overhang, second-story decks, patio covers, etc. This value may be increased by 20 percent for each additional foot of depth and by 10 percent for each additional foot of width, to a maximum value of 2,500 pounds per square foot. The recommended allowable bearing value includes both dead and live loads and may be increased by one-third for short duration wind and seismic forces. Continuous Footings An allowable soil bearing capacity of 1,500 pounds per square foot may be utilized for design of continuous footings founded at a minimum depth of 12 inches below the lowest adjacent final grade. This value may be increased by 20 percent for each additional foot of depth and by 10 percent for each additional foot of width, to a maximum value of 2,500 pounds per square foot. The recommended allowable bearing value includes both dead and live loads and may be increased by one-third for short duration wind and seismic forces. Estimated Footing Settlement Based on the allowable bearing values provided above, total static settlement of the footings under the anticipated loads is expected to be less than ¾ inch. Differential settlement is expected to be less than ½ inch over a horizontal span of 30 feet. The majority of settlement is likely to take place as footing loads are applied or shortly thereafter. Lateral Resistance A passive earth pressure of 250 pounds per square foot per foot of depth, to a maximum value of 2,500 pounds per square foot, may be used to determine lateral bearing resistance for footings. In addition, a coefficient of friction of 0.40 times the dead load forces may be used between concrete and the supporting soils to determine lateral sliding resistance. The above values may be increased by one-third when designing for transient wind or seismic forces. It should be noted that the above values are based on the condition where footings are cast in direct contact with compacted fill or competent native soils. In cases where the footing sides are formed, all backfill placed against the footings upon removal of forms should be compacted to at least 90 percent of the applicable maximum dry density. LENNAR HOMES March 4, 2021 Citrus and Summit West Project / Fontana J.N. 21-142 Page 13 Guidelines for Footings and Slabs on-Grade Design and Construction Near-surface soils within the site will very likely exhibit expansion indices (EI’s) that are in the Very Low category (EI < 20) following site grading. As indicated in Section 1803.5.3 of 2019 California Building Code (2019 CBC), these soils are considered non-expansive and, as such, the design of slabs on-grade is considered to be exempt from the procedures outlined in Sections 1808.6.2 of the 2019 CBC and may be performed using any method deemed rational and appropriate by the project structural engineer. However, the following minimum recommendations are presented herein for conditions where the project design team may require geotechnical engineering guidelines for design and construction of footings and slabs on-grade the project site. The design and construction guidelines that follow are based on the above soil conditions and may be considered for reducing the effects of variability in fabric, composition and, therefore, the detrimental behavior of the site soils such as excessive short- and long-term total and differential heave or settlement. These guidelines have been developed on the basis of the previous experience of this firm on projects with similar soil conditions. Although construction performed in accordance with these guidelines has been found to reduce post-construction movement and/or distress, they generally do not positively eliminate all potential effects of variability in soils characteristics and future heave or settlement. It should also be noted that the suggestions for dimension and reinforcement provided herein are performance-based and intended only as preliminary guidelines to achieve adequate performance under the anticipated soil conditions. However, they should not be construed as replacement for structural engineering analyses, experience, and judgment. The project structural engineer, architect and/or civil engineer should make appropriate adjustments to slab and footing dimensions, and reinforcement type, size and spacing to account for internal concrete forces (e.g., thermal, shrinkage and expansion) as well as external forces (e.g., applied loads) as deemed necessary. Consideration should also be given to minimum design criteria as dictated by local building code requirements. Conventional Slab-on-Grade System Given the expansion index is expected to be less than 20, we recommend that footings and floor slabs be designed and constructed in accordance with the following minimum criteria. LENNAR HOMES March 4, 2021 Citrus and Summit West Project / Fontana J.N. 21-142 Page 14 Footings 1. Exterior continuous footings supporting one- and two-story structures should be founded at a minimum depth of 12 inches below the lowest adjacent final grade, respectively. Interior continuous footings may be founded at a minimum depth of 10 inches below the top of the adjacent finish floor slabs. 2. In accordance with Table 1809.7 of 2019 CBC for light-frame construction, all continuous footings should have minimum widths of 12 inches for one- and two-story construction. We recommend all continuous footings should be reinforced with a minimum of two No. 4 bars, one top and one bottom. 3. A minimum 12-inch-wide grade beam founded at the same depth as adjacent footings should be provided across garage entrances or similar openings (such as large doors or bay windows). The grade beam should be reinforced with a similar manner as provided above. 4. Interior isolated pad footings, if required, should be a minimum of 24 inches square and founded at a minimum depth of 12 inches below the bottoms of the adjacent floor slabs for one- and two-story buildings. Pad footings should be reinforced with No. 4 bars spaced a maximum of 18 inches on centers, both ways, placed near the bottoms of the footings. 5. Exterior isolated pad footings intended for support of roof overhangs such as second-story decks, patio covers, and similar construction should be a minimum of 24 inches square and founded at a minimum depth of 18 inches below the lowest adjacent final grade. The pad footings should be reinforced with No. 4 bars spaced a maximum of 18 inches on centers, both ways, placed near the bottoms of the footings. Exterior isolated pad footings may need to be connected to adjacent pad and/or continuous footings via tie beams at the discretion of the project structural engineer. 6. The minimum footing dimensions and reinforcement recommended herein may be modified (increased or decreased subject to the constraints of Chapter 18 of the 2019 CBC) by the structural engineer responsible for foundation design based on his/her calculations, engineering experience and judgment. Building Floor Slabs 1. Concrete floor slabs should be a minimum 4 inches thick and reinforced with No. 3 bars spaced a maximum of 24 inches on centers, both ways. Alternatively, the structural engineer may recommend the use of prefabricated welded wire mesh for slab reinforcement. For this condition, the welded wire mesh should be of sheet type (not rolled) and should consist of 6x6/W2.9xW2.9 WWF (per the Wire Reinforcement Institute, WRI, designation) or stronger. All slab reinforcement should be properly supported to ensure the desired placement near mid-depth. Care should be exercised to prevent warping of the welded wire mesh between the chairs in order to ensure its placement at the desired mid-slab position. Slab dimension, reinforcement type, size and spacing need to account for internal concrete forces (e.g., thermal, shrinkage and expansion) as well as external forces (e.g., applied loads), as deemed necessary. 2. Living area concrete floor slabs and areas to receive moisture sensitive floor covering should be underlain with a moisture vapor retarder consisting of a minimum 10-mil-thick polyethylene or polyolefin membrane that meets the minimum requirements of ASTM E96 and ASTM E1745 for vapor retarders (such as Husky Yellow Guard®, Stego® Wrap, or equivalent). All laps within the membrane should be sealed, and at least 2 inches of clean sand should be placed over the membrane to promote LENNAR HOMES March 4, 2021 Citrus and Summit West Project / Fontana J.N. 21-142 Page 15 uniform curing of the concrete. To reduce the potential for punctures, the membrane should be placed on a pad surface that has been graded smooth without any sharp protrusions. If a smooth surface cannot be achieved by grading, consideration should be given to lowering the pad finished grade an additional inch and then placing a 1-inch-thick leveling course of sand across the pad surface prior to the placement of the membrane. At the present time, some slab designers, geotechnical professionals, and concrete experts view the sand layer below the slab (blotting sand) as a place for entrapment of excess moisture that could adversely impact moisture-sensitive floor coverings. As a preventive measure, the potential for moisture intrusion into the concrete slab could be reduced if the concrete is placed directly on the vapor retarder. However, if this sand layer is omitted, appropriate curing methods must be implemented to ensure that the concrete slab cures uniformly. A qualified materials engineer with experience in slab design and construction should provide recommendations for alternative methods of curing and supervise the construction process to ensure uniform slab curing. Additional steps would also need to be taken to prevent puncturing of the vapor retarder during concrete placement. 3. Garage floor slabs should be a minimum 4 inches thick and reinforced in a similar manner as living area floor slabs. Garage slabs should also be poured separately from adjacent wall footings with a positive separation maintained using ¾-inch-minimum felt expansion joint material. To control the propagation of shrinkage cracks, garage floor slabs should be quartered with weakened plane joints. Consideration should be given to placement of a moisture vapor retarder below the garage slab, similar to that provided in Item 2 above, should the garage slab be overlain with moisture sensitive floor covering. 4. Presaturation of the subgrade below floor slabs will not be required; however, prior to placing concrete, the subgrade below all dwelling and garage floor slab areas should be thoroughly moistened to achieve a moisture content that is at least equal to or slightly greater than optimum moisture content. This moisture content should penetrate to a minimum depth of 12 inches below the bottoms of the slabs. 5. The minimum dimensions and reinforcement recommended herein for building floor slabs may be modified (increased or decreased subject to the constraints of Chapter 18 of the 2019 CBC) by the structural engineer responsible for foundation design based on his/her calculations, engineering experience and judgment. Foundation Excavation Observations Foundation excavations should be observed by a representative of this firm to document that they have been excavated into competent engineered fill soils prior to the placement of forms, reinforcement or concrete. Following grading, the presence of rock, up to 12 inches diameter, in the compacted fill may require the use of forms when pouring concrete. The excavations should be trimmed neat, level and square. All loose, sloughed or moisture-softened soils and/or any construction debris should be removed prior to placing of concrete. Excavated soils derived from footing and/or utility trenches should not be placed in building slab- on-grade areas or exterior concrete flatwork areas unless the soils are compacted to at least 90 percent of maximum dry density. LENNAR HOMES March 4, 2021 Citrus and Summit West Project / Fontana J.N. 21-142 Page 16 Foundation Concrete Over-Pour As noted in the previous section, the on-site soils contain a large percentage of cobbles which will result in widened and potentially deepened footing excavations due to the excavation of rocks in the fill. Even with forming, concrete quantities in excess of calculated footing volumes should be expected. General Corrosivity Screening As a screening level study, very limited chemical and electrical tests were performed on several samples considered representative of the onsite soils to identify potential corrosive characteristics of these soils. The common indicators associated with soil corrosivity include water-soluble sulfate and chloride levels, pH (a measure of acidity), and minimum electrical resistivity. Test results are presented in Table 2 below. It should be noted that Petra does not practice corrosion engineering; therefore, the test results, opinion and engineering judgment provided herein should be considered as general guidelines only. Additional analyses would be warranted, especially, for cases where buried metallic building materials (such as copper and cast or ductile iron pipes) in contact with site soils are planned for the project. In many cases, the project geotechnical engineer may not be informed of these choices. Therefore, for conditions where such elements are considered, we recommend that other, relevant project design professionals (e.g., the architect, landscape architect, civil and/or structural engineer) also consider recommending a qualified corrosion engineer to conduct additional sampling and testing of near-surface soils during the final stages of site grading to provide a complete assessment of soil corrosivity. Recommendations to mitigate the detrimental effects of corrosive soils on buried metallic and other building materials that may be exposed to corrosive soils should be provided by the corrosion engineer as deemed appropriate. In general, a soil’s water-soluble sulfate levels and pH relate to the potential for concrete degradation; water-soluble chlorides in soils impact ferrous metals embedded or encased in concrete, e.g., reinforcing steel; and electrical resistivity is a measure of a soil’s corrosion potential to a variety of buried metals used in the building industry, such as copper tubing and cast or ductile iron pipes. Table 2, below, presents test results. with an interpretation of current code indicators and guidelines that are commonly used in this industry. The table includes the classifications of the soils as they relate to the various tests, as well as a general recommendation for possible mitigation measures in view of the potential adverse impact on various components of the proposed structures in direct contact with site soils. The guidelines provided LENNAR HOMES March 4, 2021 Citrus and Summit West Project / Fontana J.N. 21-142 Page 17 herein should be evaluated and confirmed, or modified, in their entirety by the project structural engineer, corrosion engineer and/or the contractor responsible for concrete placement for structural concrete used in exterior and interior footings, interior slabs on-ground, garage slabs, wall foundations and concrete exposed to weather such as driveways, patios, porches, walkways, ramps, steps, curbs, etc. TABLE 2 Soil Corrosivity Screening Results Test Test Results Classification General Recommendations Soluble Sulfates (Cal 417) 0.008 percent S0(1) Type II cement; min. fc’ = 2,500 psi; no water/cement ratio restrictions pH (Cal 643) 6.97 Neutral No special requirements Soluble Chloride (Cal 422) 123 ppm C12 C24 Residence: No special recommendations Pools/Decking: water/cement ratio 0.40, fc’ = 5,000 psi Resistivity (Cal 643) 13,000 ohm-cm Mildly Corrosive(3) No special requirements Notes: 1. ACI 318-14, Section 19.3 2. ACI 318-14, Section 19.3 3. Pierre R. Roberge, “Handbook of Corrosion Engineering” 4. Exposure classification C2 applies specifically to swimming pools and appurtenant concrete elements Preliminary Infiltration Rate Infiltration Test Results One field falling-head percolation test (P-1) was performed in roughly the center of the subject site near the proposed infiltration facility to evaluate the infiltration rate of native alluvial fan soils. The test was performed in the zone approximately 4 to 5 feet below existing grade. The falling-head percolation test data was utilized in determining the test infiltration rate, It, expressed in units of inches/hour, utilizing the Porchet Method. Field testing was conducted in a perforated-cased borehole at 10-minute intervals for a period of approximately 1 hour. The percolation tests were conducted in the bottom 1 foot of the test pit and the test data are attached in Appendix C. The infiltration rate, It, was calculated by determining the volumetric water flow through the wetted borehole surface area, expressed in terms of inches per hour. Un- factored test results are summarized in the following Table 3. In view of the sandy nature of the onsite native materials, which includes the presence of gravel and cobbles, the infiltration test method utilized is subject to the soils being highly disturbed. As a consequence, the infiltration test rate should be viewed as being indicative of highly permeable soils, rather than an accurate LENNAR HOMES March 4, 2021 Citrus and Summit West Project / Fontana J.N. 21-142 Page 18 rate for final design purposes. The test results do, however, confirm that the site is suitably permeable to support onsite stormwater infiltration. While the designer may assume a relatively high infiltration rate for preliminary design purposes, additional field testing should be performed to provide a more accurate un- factored design infiltration rate for final design. TABLE 3 Test No. Approximate Test Location Test Zone Depth (ft) Infiltration Rate, It (in./hr.) P-1 Center of site (see Figure 2) 4 to 5 27 * No Factor of Safety Applied Post-Grading Considerations Precise Grading and Drainage Surface and subsurface drainage systems consisting of sloping concrete flatwork, drainage swales and possibly subsurface area drains will be constructed on the subject lots to collect and direct all surface water to the adjacent streets. In addition, the ground surface around the proposed buildings should be sloped to provide a positive drainage gradient away from the structures. The purpose of the drainage systems is to prevent ponding of surface water within the level areas of the site and against building foundations and associated site improvements. The drainage systems should be properly maintained throughout the life of the proposed development. Section 1804.3 of the 2019 CBC requires that "The ground immediately adjacent to the foundation shall be sloped away from the building at a slope of not less than one unit vertical in 20 units horizontal (5-percent slope) for a minimum distance of 10 feet (3048 mm) measured perpendicular to the face of the wall". Further, “Swales used for this purpose shall be sloped a minimum of 2 percent where located within 10 feet (3048 mm) of the building foundation”. These provisions fall under the purview of the Design Civil Engineer. However, exceptions to allow modifications to these criteria are provided within the same section of the Code as "Where climatic or soil conditions warrant, the slope of the ground away from the building foundations is permitted to be reduced to not less than one unit in 48 units horizontal (2-percent slope)”. This exemption provision appears to fall under the purview of the Geotechnical Engineer-of-Record. LENNAR HOMES March 4, 2021 Citrus and Summit West Project / Fontana J.N. 21-142 Page 19 It is our understanding that the state-of-the-practice for projects in various cities and unincorporated areas of San Bernardino County, as well as throughout Southern California, has been to construct earthen slopes at 2 percent minimum gradient away from the foundations and at 1 percent minimum for earthen swale gradients. Structures constructed and properly maintained under those criteria have performed satisfactorily. Therefore, considering the semi-arid climate, site soil conditions and an appropriate irrigation regime, Petra considers that the implementation of 2 percent slopes away from the structures and 1 percent swales to be acceptable for the subject lots. It should be emphasized that the homeowners are cautioned that the slopes away from the structures and swales to be properly maintained, not to be obstructed, and that future improvements not to alter established gradients unless replaced with suitable alternative drainage systems. Further, where the flow line of the swale exists within five feet of the structure, adjacent footings shall be deepened appropriately to maintain minimum embedment requirements, measured from the flow line of the swale. Utility Trench Backfill All utility trench backfill should be compacted to a minimum relative compaction of 90 percent, however the trench backfill materials should be first be screened of any rock greater than 6 inches in diameter. The backfill should be placed in 8- to 12-inch lifts, moisture-conditioned as necessary to achieve slightly above optimum moisture conditions, and mechanically compacted in place with a hydra-hammer, pneumatic tamper or similar equipment to achieve a minimum relative compaction of 90 percent. A representative of this firm should probe and test the backfills to document the adequate compaction has been achieved. For shallow trenches where pipe or utilities might be damaged by mechanical compaction equipment, imported sand having a Sand Equivalent (SE) value of 30 or greater may be used for backfill. Sand backfill materials should be watered to achieve above optimum moisture conditions, and then tamped with hand- operated pneumatic tampers to ensure proper consolidation of the backfill. No specific relative compaction will be required; however, observation, probing and, if deemed necessary, testing should be performed by a representative of this firm to verify that the backfill is adequately compacted and will not be subject to excessive settlement. Where an exterior or interior utility trench is proposed in a direction that is parallel to a building footing, the bottom of the trench should not extend below a 1:1 (h:v) plane projected downward from the bottom edge of the adjacent footing. Where this condition occurs, the adjacent footing should be deepened or the trench backfilled and compacted prior to construction of the footing. LENNAR HOMES March 4, 2021 Citrus and Summit West Project / Fontana J.N. 21-142 Page 20 Masonry Block Screen Walls Construction on Level Ground Where masonry walls are proposed on level ground and 5 feet or more from the tops of descending slopes, the footings for these walls may be founded 18 inches or more below the lowest adjacent final grade. These footings should also be reinforced with two No. 4 bars, one top and one bottom. Construction Joints In order to reduce the potential for unsightly cracking related to the effects of differential settlement, positive separations (construction joints) should be provided in the walls at horizontal intervals of approximately 20 to 25 feet and at each corner. The separations should be provided in the blocks only and not extend through the footings. The footings should be placed monolithically with continuous rebars to serve as effective "grade beams" along the full lengths of the walls. Retaining Walls Footing Embedment The base of retaining wall footings constructed on level ground may be founded at a depth of 12 inches or more below the lowest adjacent final grade. Footing trenches should be observed by the project geotechnical representative to document that the footing trenches have been excavated into competent bearing soils and to the embedments recommended above. These observations should be performed prior to placing forms or reinforcing steel. Allowable Soil Bearing Capacity A basic allowable soil bearing capacity of 1,500 pounds per square foot, including dead and live loads, may be utilized for design of 12-inch-wide continuous footings founded in compacted fill at a minimum depth of 12 inches below the lowest adjacent final grade. This value may be increased by 20 percent for each additional foot of depth and by 10 percent for each additional foot of width to a maximum value of 2,500 pounds per square foot. Recommended allowable bearing values include both dead and live loads, and may be increased by one-third for short duration wind and seismic forces. Lateral Resistance A passive earth pressure of 250 pounds per square foot per foot of depth, to a maximum value of 2,500 pounds per square foot, may be used to determine lateral bearing resistance for footings. In addition, a coefficient of friction of 0.40 times the dead load forces may be used between concrete and the supporting LENNAR HOMES March 4, 2021 Citrus and Summit West Project / Fontana J.N. 21-142 Page 21 soils to determine lateral sliding resistance. When calculating passive resistance, the resistance of the upper 6 inches of the soil cover in front of the wall should be ignored in areas where the front of the wall will not be covered with concrete flatwork. The above values may be increased by one-third when designing for transient wind or seismic forces. It should be noted that the above values are based on the condition where footings are cast in direct contact with compacted fill or competent native soils. In cases where the footing sides are formed, all backfill placed against the footings upon removal of forms should be compacted to at least 90 percent of the applicable maximum dry density. Active Earth Pressures Existing soils within the site exhibit expansion potentials that are very low in expansion potential; therefore, the proposed retaining walls are expected to be backfilled with on-site soils. It should be noted that the retaining wall plans that are prepared for construction should specify the type of backfill as used by the project structural engineer in their design. On-Site Soils Used for Backfill For onsite soils used for retaining wall backfill, an active lateral earth pressure equivalent to a fluid having a density of 35 pounds per cubic foot (pcf) should be used for design of cantilevered walls retaining a drained level backfill. Where the wall backfill slopes upward at 2:1 (h:v), the above value should be increased to 51 pcf. All wall backfill soils should be screened of rock particles greater than 6-inches in diameter. The values provided herein are for retaining walls that have been supplied with a proper subdrain system (see Figure RW-1). Retaining walls should be designed to resist surcharge loads imposed by other nearby walls or structures in addition to the above active earth pressures. Geotechnical Observation and Testing All earthwork associated with retaining wall construction, including backcut excavations, observation of the footing trenches, installation of the backdrain systems, and placement of backfill should be provided by a representative of the project geotechnical consultant. Backdrains To reduce the likelihood of the entrapment of water in the backfill soils, weepholes or open vertical masonry joints may be considered for retaining walls not exceeding a height of 3 feet. Weepholes, if used, should be 3-inches minimum diameter and provided at intervals of 6 feet or less along the wall. Open vertical masonry LENNAR HOMES March 4, 2021 Citrus and Summit West Project / Fontana J.N. 21-142 Page 22 joints, if used, should be provided at 32-inch intervals. A continuous gravel fill, 3 inches by 12 inches, should be placed behind the weepholes or open masonry joints. The gravel should be wrapped in filter fabric to prevent infiltration of fines and subsequent clogging of the gravel. Filter fabric may consist of Mirafi 140N or equivalent. A perforated pipe-and-gravel subdrain should be constructed behind retaining walls exceeding a height of 3 feet (see Figure RW-1). Perforated pipe should consist of 4-inch-minimum diameter PVC Schedule 40, or ABS SDR-35, with the perforations laid down. The pipe should be encased in a 1-foot-wide column of ¾-inch to 1½-inch open-graded gravel. If on-site soils are used as backfill, the open-graded gravel should extend above the wall footings to a minimum height equal to one-third the wall height or to a minimum height of 1.5 feet above the footing, whichever is greater. The open-graded gravel should be completely wrapped in filter fabric consisting of Mirafi 140N or equivalent. Solid outlet pipes should be connected to the subdrains and then routed to a suitable area for discharge of accumulated water. Waterproofing The backfilled sides of retaining walls should be coated with an approved waterproofing compound or covered with a similar material to inhibit migration of moisture through the walls. Wall Backfill Recommended active pressures for design of retaining walls are based on the physical and mechanical properties of the onsite soil materials. The backfill behind the proposed retaining walls, they should be screened of rock fragments greater than 6-inches in diameter, placed in approximately 6- to 8-inch-thick maximum lifts, watered as necessary to achieve slightly above optimum moisture conditions and then mechanically compacted in place to a minimum relative compaction of 90 percent. Flooding or jetting of the backfill materials should be avoided. A representative of the project geotechnical consultant should observe the backfill procedures and test the wall backfill to verify adequate compaction. Preliminary Pavement Section Onsite soil are highly granular and testing within the adjacent developments have resulted in R-values over 70. Based on a traffic index of 5.5 and utilizing a preliminary design R-Value of 70, the recommended preliminary pavement sections for the in-tract streets is 4 inches of asphalt concrete over compacted subgrade soils. R-value testing and final pavement design recommendations should be conducted based on the as-graded conditions at the conclusion grading operations and wet utility trench backfill placement. LENNAR HOMES March 4, 2021 Citrus and Summit West Project / Fontana J.N. 21-142 Page 23 Subgrade soils immediately below the aggregate base, to a minimum depth of 12 inches, should be compacted to a minimum relative compaction of 95 percent based on ASTM D1557 near approximately two percent above optimum moisture content. Final subgrade compaction should be performed prior to placing base materials and after utility-trench backfills have been compacted and tested. Asphaltic concrete materials and construction should conform to Section 203 of the Greenbook or by City of Fontana specifications. Exterior Concrete Flatwork General Near-surface compacted fill soils within the site are expected to exhibit an expansion index of 0 to 20, i.e. non-expansive. We recommend that all exterior concrete flatwork such as sidewalks, patio slabs, large decorative slabs, concrete subslabs that will be covered with decorative pavers, private and/or public vehicular driveways and/or access roads within and adjacent to the site be designed by the project architect and/or structural engineer with consideration given to mitigating the potential cracking and uplift that can develop in soils exhibiting expansion index values that fall in the very low category. The guidelines that follow should be considered as minimums and are subject to review and revision by the project architect, structural engineer and/or landscape consultant as deemed appropriate. Thickness and Joint Spacing To reduce the potential of unsightly cracking, concrete walkways, patio-type slabs, large decorative slabs and concrete subslabs to be covered with decorative pavers should be at least 4 inches thick and provided with construction joints or expansion joints every 6 feet or less. Private driveways that will be designed for the use of passenger cars for access to private garages should also be at least 4 inches thick and provided with construction joints or expansion joints every 10 feet or less. Concrete pavement that will be designed based on an unlimited number of applications of an 18-kip single-axle load in public access areas, segments of road that will be paved with concrete (such as bus stops and cross-walks) or access roads and driveways, which serve multiple residential units or garages, that will be subject to heavy truck loadings should have a minimum thickness of 5 inches and be provided with control joints spaced at maximum 10-foot intervals. A modulus of subgrade reaction of 125 pounds per cubic foot may be used for design of the public and access roads. LENNAR HOMES March 4, 2021 Citrus and Summit West Project / Fontana J.N. 21-142 Page 24 Reinforcement All concrete flatwork having their largest plan-view panel dimension exceeding 10 feet should be reinforced with a minimum of No. 3 bars spaced 24 inches on centers, both ways. Alternatively, the slab reinforcement may consist of welded wire mesh of the sheet type (not rolled) with 6x6/W1.4xW1.4 designation in accordance with the Wire Reinforcement Institute (WRI). The reinforcement should be properly positioned near the middle of the slabs. The reinforcement recommendations provided herein are intended as guidelines to achieve adequate performance for anticipated soil conditions. The project architect, civil and/or structural engineer should make appropriate adjustments in reinforcement type, size and spacing to account for concrete internal (e.g., shrinkage and thermal) and external (e.g., applied loads) forces as deemed necessary. Edge Beams (Optional) Where the outer edges of concrete flatwork are to be bordered by landscaping, it is recommended that consideration be given to the use of edge beams (thickened edges) to prevent excessive infiltration and accumulation of water under the slabs. Edge beams, if used, should be 6 to 8 inches wide, extend 8 inches below the tops of the finish slab surfaces. Edge beams are not mandatory; however, their inclusion in flatwork construction adjacent to landscaped areas is intended to reduce the potential for vertical and horizontal movement and subsequent cracking of the flatwork related to uplift forces that can develop in expansive soils. Subgrade Preparation Compaction To reduce the potential for distress to concrete flatwork, the subgrade soils below concrete flatwork areas to a minimum depth of 12 inches (or deeper, as either prescribed elsewhere in this report or determined in the field) should be moisture conditioned to at least equal to, or slightly greater than, the optimum moisture content and then compacted to a minimum relative compaction of 90 percent. Where concrete public roads, concrete segments of roads and/or concrete access driveways are proposed, the upper 6 inches of subgrade soil should be compacted to no less than 95 percent relative compaction. Pre-Moistening As a further measure to reduce the potential for concrete flatwork cracking, subgrade soils should be thoroughly moistened prior to placing concrete. The moisture content of the soils should be at least 1.2 LENNAR HOMES March 4, 2021 Citrus and Summit West Project / Fontana J.N. 21-142 Page 25 times the optimum moisture content and penetrate to a minimum depth of 12 inches into the subgrade. Flooding or ponding of the subgrade is not considered feasible to achieve the above moisture conditions since this method would likely require construction of numerous earth berms to contain the water. Therefore, moisture conditioning should be achieved with a light spray applied to the subgrade over a period of few to several days just prior to pouring concrete. Pre-watering of the soils is intended to promote uniform curing of the concrete, reduce the development of shrinkage cracks and reduce the potential for differential expansion pressure on freshly poured flatwork. A representative of the project geotechnical consultant should observe and verify the density and moisture content of the soils, and the depth of moisture penetration prior to pouring concrete. Drainage Drainage from patios and other flatwork areas should be directed to local area drains and/or graded earth swales designed to carry runoff water to the adjacent streets or other approved drainage structures. The concrete flatwork should be sloped at a minimum gradient of one percent, or as prescribed by project civil engineer or local codes, away from building foundations, retaining walls, masonry garden walls and slope areas. Tree Wells Tree wells are not recommended in concrete flatwork areas since they introduce excessive water into the subgrade soils and allow root invasion, both of which can cause heaving and cracking of the flatwork. GRANDING AND FINAL PLAN REVIEWS This report has been prepared for the exclusive use of Lennar Homes to assist the project engineers and architect in the design of the proposed development. It is recommended that Petra be engaged to review the rough grading and any other final-design drawings and specifications prior to construction. This is to document that the recommendations contained in this report have been properly interpreted and are incorporated into the project specifications. If Petra is not accorded the opportunity to review these documents, we can take no responsibility for misinterpretation of our recommendations. We recommend that Petra be retained to provide soil-engineering services during construction of the excavation and foundation phases of the work. This is to observe compliance with the design, specifications or recommendations and to allow design changes in the event that subsurface conditions differ from those anticipated prior to start of construction. LENNAR HOMES March 4, 2021 Citrus and Summit West Project / Fontana J.N. 21-142 Page 26 If the project plans change significantly (e.g., major slopes or type of structures), we should review our original design recommendations and their applicability to the revised construction. If conditions are encountered during construction that appears to be different than those indicated in this report, this office should be notified immediately. Design and construction revisions may be needed. REPORT LIMITATIONS This report is based on the proposed residential development and our preliminary subsurface exploration and geotechnical laboratory testing and analysis. The materials encountered on the project site and utilized in our laboratory evaluation are believed representative of the total area; however, soil materials, moisture contents and oversize rock conditions can vary in characteristics between excavations, both laterally and vertically. The conclusions and opinions contained in this report are based on the results of the described geotechnical evaluations and represent our professional judgment. This report has been prepared consistent with that level of care being provided by other professionals providing similar services at the same locale and in the same time period. The contents of this report are professional opinions and as such, are not to be considered a guaranty or warranty. This report has not been prepared for use by parties or projects other than those named or described herein. This report may not contain sufficient information for other parties or other purposes. In addition, this report should be reviewed and updated after a period of 1 year or if the site ownership or project concept changes from that described herein. This opportunity to be of service is sincerely appreciated. If you have any additional questions or concerns, please feel free contact this office. Respectfully submitted, PETRA GEOSCIENCES, INC. 3/4/2021 Douglass L. Johnston Grayson R. Walker Senior Associate Geologist Principal Engineer CEG 2477 GE 871 DLJ/GRW/lv Distribution: (1) Addressee (electronic) (1) Mr. Amir Fallahi, K&A Engineering, Inc. (electronic) W:\2020-2025\2021\100\21-142 Lennar Homes (Citrus-Summit West, Fontana) Geotech Proposal\Reports\21-142 110 Preliminary Geotechnical Report.docx LENNAR HOMES March 4, 2021 Citrus and Summit Wets Project / Fontana J.N. 21-142 Page 27 REFERENCES American Concrete Institute publication, 2014 Building Code Requirements for Structural Concrete, ACI 318-14. California Department of Water Resources, 2021, Water Data Library, accessed February, http://www.water.ca.gov/waterdatalibrary/ California Geologic Survey, 2021, Earthquake Zones of Required Investigation, Devore Quadrangle, accessed February, https://maps.conservation.ca.gov/cgs/EQZApp/app/ Google Earth™ 2021, by Google Earth, Inc., accessed February, http://www.google.com/earth/index.html International Building Code, 2018, 2019 California Building Code, California Code of Regulations, Title 24, Par 2, Volume 2 of 2, Based on the 2018 International Building Code, California Building Standards Commission. Kevin L. Crook Architect, Inc., 2021, Conceptual Site Plan, dated January 19. Morton, D.M. and Matti, J. C., 2001, Geologic Map of the Devore 7.5’ Quadrangle, San Bernardino County, California; USGS Open-file Report 01-173. Petra Geosciences, Inc., 2015, Due-Diligence Geotechnical Assessment, Summit at Fontana Project (Phase 1), Tract 18825-1 (77 Lots), Northeast of Summit and Citrus Avenues, City of Fontana, San Bernardino County, California, prepared for Richmond American Homes, J.N. 15-399, dated October 22. ______, 2019, Limited Desk Top Environmental and Geotechnical Feasibility/Due-Diligence Review, Lot 2 of Tentative Tract Map 17041, Adjacent the West Side of Citrus Avenue, City of Fontana, San Bernardino County, California, prepared for William Lyon Homes, J.N. 19-341, dated September 16. ______, 2020, 2nd Revised Updated Geotechnical Recommendations and Review of Precise Grading Plans, Shady Trails Project, Lot 2 of Tract 17041, Citrus Avenue at Parkhouse Drive, City of Fontana, San Bernardino County, California, prepared for Taylor Morrison, J.N. 20-208, dated August 12. RMA Group, 2005, Geotechnical Investigation, Tract No. 16868, 230-Acre Residential Development, North of Summit Avenue and West of Citrus Avenue, Fontana CA, prepared for Lewis Operating Corp., dated June 3 (Revised April 19, 2007; Recreated December 23, 2013). San Bernardino County Land Use Plan, 2010, General Plan Geologic Hazard Overlays, Figure FH21 C, Devore. Wire Reinforcement Institute (WRI), 1996, Design of Slabs on Ground. FIGURES PETRA GEOSCIENCES, INC. 40880 County Center Drive, Suite M Temecula, California 92591 PHONE: (951) 600-9271 COSTA MESA TEMECULA VALENCIA PALM DESERT CORONA Site Location Map DATE: March 2021 J.N.: 21-142 Figure 1 Citrus and Summit West Project 9-acre Site City of Fontana, San Bernardino County, California SCIENCES N Reference: Google Earth, 2019 image Project Site PETRA GEOSCIENCES, INC. 40880 County Center Drive, Suite M Temecula, California 92591 Phone: (951) 600-9271 COSTA MESA TEMECULA VALENCIA PALM DESERT CORONA Exploration Location Map DATE: J.N.: 21-142 Figure 2March 2021 SCIENCESBasemap: Google Earth, 2020 image Citrus and Summit West Project 9-Acre Site City of Fontana, San Bernardino County, California Percolation Test Location P-1 Approximate Test Pit Location TP-8 P-1 N TP-6 TP-2 TP-1 TP-8 TP-3 TP-7 TP-4 TP-5 APPENDIX A FIELD EXPLORATION LOGS (TEST PITS) 0 2 4 6 8 10 12 14 ARTIFICIAL FILL (af) Silty Sand with gravel (SM): brown, slightly moist, fine to medium grained, 20% gravel, 5% cobbles,75% silty sand. VERY YOUNG ALLUVIAL FAN DEPOSITS (Qf) Silty Sand (SM): dark brown, moist, fine to coarse grained, 10% gravel,2% cobble, 88% silty sand. Total depth= 4'8" No groundwater encountered Boring backfill with cutting. Project:Citrus and Summit "west"Boring No.:P-1 Location:Northwest Corner of Citrus & Summit Ave, Fontana, San Bernardino County, CA Elevation:±1641 Job No.:21-142 Client:LENNAR HOMES Date:02/22/2021 Drill Method:24" Backhoe Driving Weight:N/A Logged By:KTM Depth (Feet) Lith- ology Material Description W A T E R Blows per 6 in. Samples C o r e B u l k Moisture Content (%) Laboratory Tests Dry Density (pcf) Other Lab Tests T E S T P I T L O G Petra Geosciences, Inc. PLATE A-9 0 2 4 6 8 10 12 14 ARTIFICIAL FILL (af) Silty Sand with gravel (SM): Grayish-brown, dry, fine grained sand, 20% gravel, 3% cobbles,77% silty sand,trace roots. VERY YOUNG ALLUVIAL FAN DEPOSITS (Qf) Gravely sand (GP/SP): Grayish-brown, dry, fine to coarse grained, 50% gravel,5% cobble,2% boulder, 43% silty sand, up to 10" in diameter. @ 2'Becomes gray. @ 4.5' Becomes grayish brown,moist, fine to coarse grained, 20% gravel,10% cobble, 5% boulder, 65% silty sand. @ 7' Same as above, 20% gravel,10% cobble, 5% boulder, 65% silty sand. Total Depth= 10'1" No groundwater encountered Boring backfill with cutting. 5.8 7.3 132.8 110.7 MAX Project:Citrus and Summit "west"Boring No.:TP-1 Location:Northwest Corner of Citrus & Summit Ave, Fontana, San Bernardino County, CA Elevation:±1656 Job No.:21-142 Client:LENNAR HOMES Date:02/22/2021 Drill Method:24" Backhoe Driving Weight:N/A Logged By:KTM Depth (Feet) Lith- ology Material Description W A T E R Blows per 6 in. Samples C o r e B u l k Moisture Content (%) Laboratory Tests Dry Density (pcf) Other Lab Tests T E S T P I T L O G Petra Geosciences, Inc. PLATE A-1 0 2 4 6 8 10 12 14 ARTIFICIAL FILL (af) gravely Silty Sand (SM): Grayish-brown, dry, fine to coarse grained sand, 40% gravel, 5% cobbles,55% silty sand. VERY YOUNG ALLUVIAL FAN DEPOSITS (Qf) Gravely sand,3 inches-thickness (GP/SP): dark brown, black, dry, 40% gravel, 60% sand,. Silty Sand with gravel (SM): Dark grayish-brown, slightly moist, fine grained sand, 20% gravel,5%cobble, 75% silty sand. Sandy Gravel (GP/SP): Grayish-brown, dry, medium to coarse grained, 45% gravel,5% cobble,50% sand. cobble up to 6" diameter. @ 3' Same as above. @ 5' Same as above. Total Depth= 5'6" No groundwater encountered Boring backfill with cutting. 7.2 10.3 95.7 99.1 Project:Citrus and Summit "west"Boring No.:TP-2 Location:Northwest Corner of Citrus & Summit Ave, Fontana, San Bernardino County, CA Elevation:±1658 Job No.:21-142 Client:LENNAR HOMES Date:02/22/2021 Drill Method:24" Bbackhoe Driving Weight:N/A Logged By:KTM Depth (Feet) Lith- ology Material Description W A T E R Blows per 6 in. Samples C o r e B u l k Moisture Content (%) Laboratory Tests Dry Density (pcf) Other Lab Tests T E S T P I T L O G Petra Geosciences, Inc. PLATE A-2 0 2 4 6 8 10 12 14 ARTIFICIAL FILL (af) Silty Sand with gravel (Sm): gray, dry, fine- to coarse-grained sand, 25% gravel,5% cobble, 70% silty sand. VERY YOUNG ALLUVIAL FAN DEPOSITS (Qf) Silty Sand with gravel (SM): Brown, moist, fine grained sand, 10% gravel,5% cobble up to 6" diameter, 85% silty sand. @ 2.5'Becomes dark grayish brown. Sandy Gravel (GP-SP): Grayish-brown, moist, medium grained sand, 20% gravel, 25% cobble (10% up to 6"),55% sand. Total Depth=5'6" No groundwater encountered Boring backfill with cutting. 8.0 8.3 116.4 105.5 Project:Citrus and Summit "west"Boring No.:TP-3 Location:Northwest Corner of Citrus & Summit Ave, Fontana, San Bernardino County, CA Elevation:±1648 Job No.:21-142 Client:LENNAR HOMES Date:02/22/2021 Drill Method:24" Backhoe Driving Weight:N/A Logged By:KTM Depth (Feet) Lith- ology Material Description W A T E R Blows per 6 in. Samples C o r e B u l k Moisture Content (%) Laboratory Tests Dry Density (pcf) Other Lab Tests T E S T P I T L O G Petra Geosciences, Inc. PLATE A-3 0 2 4 6 8 10 12 14 TOPSOIL Silty Sand with gravel (SM): Dark grayish-brown, slightly moist, fine grained sand, 40% gravel up to 2", 60% silty sand. VERY YOUNG ALLUVIAL FAN DEPOSITS (Qf) Silty sand with gravel (SM): Dark grayish-brown, moist, fine grained, 10% gravel, 3%cobble( up to 5" diameter) 87% silty sand,. Sand with gravel (GP-SP): Yellowish-brown, moist, fine to medium grained, 30% gravel,5%cobble, boulder <2% (up to 7" diameter), 63% sand. @ 5'Same as above. Total Depth = 5'4" No groundwater encountered Boring backfill with cutting. 7.8 7.4 123.0 108.3 MaX Project:Citrus and Summit "west"Boring No.:TP-4 Location:Northwest Corner of Citrus & Summit Ave, Fontana, San Bernardino County, CA Elevation:±1660 Job No.:21-142 Client:LENNAR HOMES Date:02/22/2021 Drill Method:24" Backhoe Driving Weight:N/A Logged By:KTM Depth (Feet) Lith- ology Material Description W A T E R Blows per 6 in. Samples C o r e B u l k Moisture Content (%) Laboratory Tests Dry Density (pcf) Other Lab Tests T E S T P I T L O G Petra Geosciences, Inc. PLATE A-4 0 2 4 6 8 10 12 14 VERY YOUNG ALLUVIAL FAN DEPOSITS (Qf) Silty Sand with gravel (SM): Yellowish-brown, dry, fine- to medium-grained sand, 10% gravel up to 2", 90% silty sand. Silty sand with gravel (SM): Yellowish-brown, slightly moist, fine- to medium- grained sand, 10% gravel, 20 %cobble( up to 5" diameter),5% boulder(up to 8" diameter) 65% silty sand,. @ 5' Same as above, 10% gravel, 20 %cobble( up to 5" diameter),5% boulder(up to 8" diameter) 65% silty sand,. Total Depth = 5'4" No groundwater encountered Boring backfill with cutting. 7.4 9.6 113.9 118.3 Project:Citrus and Summit "west"Boring No.:TP-5 Location:Northwest Corner of Citrus & Summit Ave, Fontana, San Bernardino County, CA Elevation:±1640 Job No.:21-142 Client:LENNAR HOMES Date:02/22/2021 Drill Method:24" Backhoe Driving Weight:N/A Logged By:SB Depth (Feet) Lith- ology Material Description W A T E R Blows per 6 in. Samples C o r e B u l k Moisture Content (%) Laboratory Tests Dry Density (pcf) Other Lab Tests T E S T P I T L O G Petra Geosciences, Inc. PLATE A-5 0 2 4 6 8 10 12 14 ARTIFICIAL FILL (af) Silty Sand with gravel (SM): light gray, dry, fine- to medium-grained sand, 10% gravel up to 2", 90% silty sand. VERY YOUNG ALLUVIAL FAN DEPOSITS (Qf) Silty sand with gravel (SM): Yellowish-brown, slightly moist, fine- to coarse- grained sand, 20% gravel, 10 %cobble( up to 5" diameter),2% boulder(up to 8" diameter) 68% silty sand,. @ 3' Becomes brown,20% gravel, 10 %cobble( up to 5" diameter),2% boulder(up to 8" diameter) 68% silty sand,. @ 5' Becomes Yellowish brown,20% gravel, 10 %cobble( up to 5" diameter), 2% boulder(up to 8" diameter) 68% silty sand,. Total Depth = 5'8" No groundwater encountered Boring backfill with cutting. 9.6 8.7 123.6 100.9 Project:Citrus and Summit "west"Boring No.:TP-6 Location:Northwest Corner of Citrus & Summit Ave, Fontana, San Bernardino County, CA Elevation:±1639 Job No.:21-142 Client:LENNAR HOMES Date:02/22/2021 Drill Method:24" Backhoe Driving Weight:N/A Logged By:SB Depth (Feet) Lith- ology Material Description W A T E R Blows per 6 in. Samples C o r e B u l k Moisture Content (%) Laboratory Tests Dry Density (pcf) Other Lab Tests T E S T P I T L O G Petra Geosciences, Inc. PLATE A-6 0 2 4 6 8 10 12 14 ARTIFICIAL FILL (af) Silty Sand with gravel (SM): Brown, dry, fine- to coarse-grained sand, 10% gravel up to 2", 90% silty sand. VERY YOUNG ALLUVIAL FAN DEPOSITS (Qf) Silty sand with gravel (SM): dark brown, slightly moist, fine- to coarse-grained sand, 35% gravel, 10 %cobble( up to 5" diameter),7% boulder(up to 8" diameter) 48% silty sand,. Gravelly Sand (GP-SP): dark brown, moist, fine- to coarse-grained sand, 35% gravel, 10 %cobble( up to 5" diameter),5% boulder(up to 8" diameter) 48% silty sand,. @ 5'Becomes Yellowish brown,40% gravel,%10 cobble( up to 5" diameter), 5% boulder(up to 8" diameter) 45% silty sand,. Total Depth = 5'7" No groundwater encountered Boring backfill with cutting. 9.6 8.5 104.3 110.5 Project:Citrus and Summit "west"Boring No.:TP-7 Location:Northwest Corner of Citrus & Summit Ave, Fontana, San Bernardino County, CA Elevation:±1651 Job No.:21-142 Client:LENNAR HOMES Date:02/22/2021 Drill Method:24" Backhoe Driving Weight:N/A Logged By:SB Depth (Feet) Lith- ology Material Description W A T E R Blows per 6 in. Samples C o r e B u l k Moisture Content (%) Laboratory Tests Dry Density (pcf) Other Lab Tests T E S T P I T L O G Petra Geosciences, Inc. PLATE A-7 0 2 4 6 8 10 12 14 VERY YOUNG ALLUVIAL FAN DEPOSITS (Qf) Silty Sand with gravel (SM): Light brown, dry, fine- to coarse-grained sand, 10% gravel up to 2", 90% silty sand. @ 2' Becomes dark brown 10% gravel,%10 cobble( up to 5" diameter),2%to 3% boulder(up to 8" diameter) 48% silty sand,. Gravelly Sand (GP-SP): dark brown, moist, fine- to coarse-grained sand, 10% gravel,%10 cobble( up to 5" diameter),2%to 3% boulder(up to 8" diameter) 48% sand. @ 5' Same as above,10% gravel,%10 cobble( up to 5" diameter),2%to 3% boulder(up to 8" diameter), 48% sand. Total Depth=5'6" No groundwater encountered Boring backfill with cutting. 8.6 9.2 119.3 99.2 PH,SO4, CL Project:Citrus and Summit "west"Boring No.:TP-8 Location:Northwest Corner of Citrus & Summit Ave, Fontana, San Bernardino County, CA Elevation:±1648 Job No.:21-142 Client:LENNAR HOMES Date:02/22/2021 Drill Method:24" Backhoe Driving Weight:N/A Logged By:SB Depth (Feet) Lith- ology Material Description W A T E R Blows per 6 in. Samples C o r e B u l k Moisture Content (%) Laboratory Tests Dry Density (pcf) Other Lab Tests T E S T P I T L O G Petra Geosciences, Inc. PLATE A-8 APPENDIX B LABORATORY TEST PROCEDURES LABORATORY DATA SUMMARY _____________________________________________________ ______________________________________ PETRA GEOSCIENCES, INC. Laboratory Address: 1251 W. Pomona Road, Unit 103, Corona, CA, 92882 J.N. 21-142 LABORATORY TEST PROCEDURES Soil Classification Soils encountered within the exploration borings were initially classified in the field in general accordance with the visual-manual procedures of the Unified Soil Classification System (ASTM D2488). The samples were re-examined in the laboratory and the classifications reviewed and then revised where appropriate. Laboratory Maximum Dry Density and Optimum Moisture Content The maximum dry unit weight and optimum moisture content of various on-site soil types were determined for selected bulk samples in accordance with current version of Method A of ASTM D 1557. The results of these tests are presented on Plate B-1. Soil Corrosivity Chemical analyses were performed on a selected sample of soil to determine concentrations of soluble sulfate and chloride, as well as pH and resistivity. These tests were performed in accordance with California Test Method Nos. 417 (sulfate), 422 (chloride) and 643 (pH and resistivity). Test results are included on Plate B-1. __________________________________________________________________________________________________________________________________________ PETRA GEOSCIENCES, INC. Laboratory Address: 1251 W. Pomona Road, Unit 103, Corona, CA, 92882 J.N. 21-142 PLATE B-1 LABORATORY DATA SUMMARY* Location Sample Depth (ft) Soil Description Max. Dry Density 1 (pcf) Optimum Moisture1 (%) Expansion Index2 USCS Soil Classification3 Atterberg Limits4 Sulfate Content5 (%) Chloride Content6 (mg/L) pH7 Minimum Resistivity7 (ohm-cm) LL PL PI TP-1 2-4 Gravelly Sand with silt 139.5 6.5 -- SW -- -- -- -- -- -- -- TP-4 0-2 Silty Sand with gravels 129.5 8.0 -- SW -- -- -- -- -- -- -- TP-8 1-3 Gravelly Sand with silt -- -- -- SW -- -- -- 0.008 123 6.97 13,000 (--) Tests Not Performed Test Procedures: 1 Per ASTM Test Method D1557 5 Per Caltrans Test Method 417 2 Per ASTM Test Method D4829 6 Per Caltrans Test Method 422 3 Per ASTM Test Method D2487 7 Per Caltrans Test Method 643 4 Per ASTM Test Method D4318 APPENDIX C FIELD INFILTRATION TEST DATA Total Depth of Boring, Dt (ft):5 Diameter of Hole, D (in):24 Diameter of Pipe, d (in):2 Agg. Correction (% Voids):20 Pre-soak depth (ft):4 1st Reading 2nd Reading 7 4.10 5.10 12.00 0.58 175.8 7 4.10 5.10 12.00 0.58 175.8 10 3.95 5.10 13.80 0.72 130.6 10 4.12 5.10 11.76 0.85 121.9 10 4.30 5.10 9.60 1.04 110.7 10 4.20 5.10 10.80 0.93 117.3 10 4.30 5.10 9.60 1.04 110.7 10 4.20 5.10 10.80 0.93 117.3 Percolation Rate:0.93 Minutes/Inch 117.3 gal/day/ft2 Infiltration Rate:38.1 Inches/Hour*(Porchet Method) r = D / 2 Ho = Dt - Do Hf = Dt - Df DH = ΔD = Ho - Hf Havg = (Ho + Hf) / 2 *Raw Number, Does Not Include a Factor of Safety Reference: RCFCWCD, Design Handbook for LID, dated June, 2014 or SARWQCB, Technical Guidance Document Appendix VII, dated December 20, 2013 or DATE: Feb., 2021 CofSBASP, Technical Guidance Document Appendix D, dated May 19, 2011 or J.N.: 21-142 Figure 1 Northwest corner of Citrus & Summit Ave Fontana, California PERCOLATION TEST SUMMARY PETRA GEOSCIENCES, INC. COSTA MESA TEMECULA VALENCIA PALM DESERT CORONA Test Number: P-1 3186 Airway Avenue, Suite K Costa Mesa, California 92626 PHONE: (714) 549-8921 Perc. Rate (gal/day/ft^2) Deep Percolation Test Method Time Interval (min) Depth to Water Surface Dw (ft) Change in Head (in) Perc. Rate (min/in) where Infiltration Rate, It =DH (60r) / Dt (r + 2Havg ) APPENDIX D STANDARD GRADING SPECIFICATIONS STANDARD GRADING SPECIFICATIONS Page 1 These specifications present the usual and minimum requirements for projects on which Petra Geosciences, Inc. (Petra) is the geotechnical consultant. No deviation from these specifications will be allowed, except where specifically superseded in the preliminary geology and soils report, or in other written communication signed by the Soils Engineer and Engineering Geologist of record (Geotechnical Consultant). I. GENERAL A. The Geotechnical Consultant is the Owner's or Builder's representative on the project. For the purpose of these specifications, participation by the Geotechnical Consultant includes that observation performed by any person or persons employed by, and responsible to, the licensed Soils Engineer and Engineering Geologist signing the soils report. B. The contractor should prepare and submit to the Owner and Geotechnical Consultant a work plan that indicates the sequence of earthwork grading, the number of "spreads" and the estimated quantities of daily earthwork to be performed prior to the commencement of grading. This work plan should be reviewed by the Geotechnical Consultant to schedule personnel to perform the appropriate level of observation, mapping, and compaction testing as necessary. C. All clearing, site preparation, or earthwork performed on the project shall be conducted by the Contractor in accordance with the recommendations presented in the geotechnical report and under the observation of the Geotechnical Consultant. D. It is the Contractor's responsibility to prepare the ground surface to receive the fills to the satisfaction of the Geotechnical Consultant and to place, spread, mix, water, and compact the fill in accordance with the specifications of the Geotechnical Consultant. The Contractor shall also remove all material considered unsatisfactory by the Geotechnical Consultant. E. It is the Contractor's responsibility to have suitable and sufficient compaction equipment on the job site to handle the amount of fill being placed. If necessary, excavation equipment will be shut down to permit completion of compaction to project specifications. Sufficient watering apparatus will also be provided by the Contractor, with due consideration for the fill material, rate of placement, and time of year. F. After completion of grading a report will be submitted by the Geotechnical Consultant. II. SITE PREPARATION A. Clearing and Grubbing 1. All vegetation such as trees, brush, grass, roots, and deleterious material shall be disposed of offsite. This removal shall be concluded prior to placing fill. 2. Any underground structures such as cesspools, cisterns, mining shafts, tunnels, septic tanks, wells, pipe lines, etc., are to be removed or treated in a manner prescribed by the Geotechnical Consultant. STANDARD GRADING SPECIFICATIONS Page 2 III. FILL AREA PREPARATION A. Remedial Removals/Overexcavations 1. Remedial removals, as well as overexcavation for remedial purposes, shall be evaluated by the Geotechnical Consultant. Remedial removal depths presented in the geotechnical report and shown on the geotechnical plans are estimates only. The actual extent of removal should be determined by the Geotechnical Consultant based on the conditions exposed during grading. All soft, loose, dry, saturated, spongy, organic-rich, highly fractured or otherwise unsuitable ground shall be overexcavated to competent ground as determined by the Geotechnical Consultant. 2. Soil, alluvium, or bedrock materials determined by the Soils Engineer as being unsuitable for placement in compacted fills shall be removed from the site. Any material incorporated as a part of a compacted fill must be approved by the Geotechnical Consultant. 3. Should potentially hazardous materials be encountered, the Contractor should stop work in the affected area. An environmental consultant specializing in hazardous materials should be notified immediately for evaluation and handling of these materials prior to continuing work in the affected area. B. Evaluation/Acceptance of Fill Areas All areas to receive fill, including removal and processed areas, key bottoms, and benches, shall be observed, mapped, elevations recorded, and/or tested prior to being accepted by the Geotechnical Consultant as suitable to receive fill. The contractor shall obtain a written acceptance from the Geotechnical Consultant prior to fill placement. A licensed surveyor shall provide sufficient survey control for determining locations and elevations of processed areas, keys, and benches. C. Processing After the ground surface to receive fill has been declared satisfactory for support of fill by the Geotechnical Consultant, it shall be scarified to a minimum depth of 6 inches and until the ground surface is uniform and free from ruts, hollows, hummocks, or other uneven features which may prevent uniform compaction. The scarified ground surface shall then be brought to optimum moisture, mixed as required, and compacted to a minimum relative compaction of 90 percent. D. Subdrains Subdrainage devices shall be constructed in compliance with the ordinances of the controlling governmental agency, and/or with the recommendations of the Geotechnical Consultant. (Typical Canyon Subdrain details are given on Plate SG-1). E. Cut/Fill & Deep Fill/Shallow Fill Transitions In order to provide uniform bearing conditions in cut/fill and deep fill/shallow fill transition lots, the cut and shallow fill portions of the lot should be overexcavated to the depths and the horizontal limits discussed in the approved geotechnical report and replaced with compacted fill. (Typical details are given on Plate SG-7.) STANDARD GRADING SPECIFICATIONS Page 3 IV. COMPACTED FILL MATERIAL A. General Materials excavated on the property may be utilized in the fill, provided each material has been determined to be suitable by the Geotechnical Consultant. Material to be used for fill shall be essentially free of organic material and other deleterious substances. Roots, tree branches, and other matter missed during clearing shall be removed from the fill as recommended by the Geotechnical Consultant. Material that is spongy, subject to decay, or otherwise considered unsuitable shall not be used in the compacted fill. Soils of poor quality, such as those with unacceptable gradation, high expansion potential, or low strength shall be placed in areas acceptable to the Geotechnical Consultant or mixed with other soils to achieve satisfactory fill material. B. Oversize Materials Oversize material defined as rock, or other irreducible material with a maximum dimension greater than 12 inches in diameter, shall be taken offsite or placed in accordance with the recommendations of the Geotechnical Consultant in areas designated as suitable for rock disposal (Typical details for Rock Disposal are given on Plate SG-4). Rock fragments less than 12 inches in diameter may be utilized in the fill provided, they are not nested or placed in concentrated pockets; they are surrounded by compacted fine grained soil material and the distribution of rocks is approved by the Geotechnical Consultant. C. Laboratory Testing Representative samples of materials to be utilized as compacted fill shall be analyzed by the labora- tory of the Geotechnical Consultant to determine their physical properties. If any material other than that previously tested is encountered during grading, the appropriate analysis of this material shall be conducted by the Geotechnical Consultant as soon as possible. D. Import If importing of fill material is required for grading, proposed import material should meet the requirements of the previous section. The import source shall be given to the Geotechnical Consultant at least 2 working days prior to importing so that appropriate tests can be performed and its suitability determined. V. FILL PLACEMENT AND COMPACTION A. Fill Layers Material used in the compacting process shall be evenly spread, watered, processed, and compacted in thin lifts not to exceed 6 inches in thickness to obtain a uniformly dense layer. The fill shall be placed and compacted on a horizontal plane, unless otherwise approved by the Geotechnical Consultant. STANDARD GRADING SPECIFICATIONS Page 4 B. Moisture Conditioning Fill soils shall be watered, dried back, blended, and/or mixed, as necessary to attain a relatively uniform moisture content at or slightly above optimum moisture content. C. Compaction Each layer shall be compacted to 90 percent of the maximum density in compliance with the testing method specified by the controlling governmental agency. (In general, ASTM D 1557-02, will be used.) If compaction to a lesser percentage is authorized by the controlling governmental agency because of a specific land use or expansive soils condition, the area to received fill compacted to less than 90 percent shall either be delineated on the grading plan or appropriate reference made to the area in the soils report. D. Failing Areas If the moisture content or relative density varies from that required by the Geotechnical Consultant, the Contractor shall rework the fill until it is approved by the Geotechnical Consultant. E. Benching All fills shall be keyed and benched through all topsoil, colluvium, alluvium or creep material, into sound bedrock or firm material where the slope receiving fill exceeds a ratio of 5 horizontal to 1 vertical, in accordance with the recommendations of the Geotechnical Consultant. VI. SLOPES A. Fill Slopes The contractor will be required to obtain a minimum relative compaction of 90 percent out to the finish slope face of fill slopes, buttresses, and stabilization fills. This may be achieved by either overbuilding the slope and cutting back to the compacted core, or by direct compaction of the slope face with suitable equipment, or by any other procedure that produces the required compaction. B. Side Hill Fills The key for side hill fills shall be a minimum of 15 feet within bedrock or firm materials, unless otherwise specified in the soils report. (See detail on Plate SG-5.) C. Fill-Over-Cut Slopes Fill-over-cut slopes shall be properly keyed through topsoil, colluvium or creep material into rock or firm materials, and the transition shall be stripped of all soils prior to placing fill. (see detail on Plate SG-6). STANDARD GRADING SPECIFICATIONS Page 5 D. Landscaping All fill slopes should be planted or protected from erosion by other methods specified in the soils report. E. Cut Slopes 1. The Geotechnical Consultant should observe all cut slopes at vertical intervals not exceeding 10 feet. 2. If any conditions not anticipated in the preliminary report such as perched water, seepage, lenticular or confined strata of a potentially adverse nature, unfavorably inclined bedding, joints or fault planes are encountered during grading, these conditions shall be evaluated by the Geotechnical Consultant, and recommendations shall be made to treat these problems (Typical details for stabilization of a portion of a cut slope are given in Plates SG-2 and SG- 3.). 3. Cut slopes that face in the same direction as the prevailing drainage shall be protected from slope wash by a non-erodible interceptor swale placed at the top of the slope. 4. Unless otherwise specified in the soils and geological report, no cut slopes shall be excavated higher or steeper than that allowed by the ordinances of controlling governmental agencies. 5. Drainage terraces shall be constructed in compliance with the ordinances of controlling governmental agencies, or with the recommendations of the Geotechnical Consultant. VII. GRADING OBSERVATION A. General All cleanouts, processed ground to receive fill, key excavations, subdrains, and rock disposals must be observed and approved by the Geotechnical Consultant prior to placing any fill. It shall be the Contractor's responsibility to notify the Geotechnical Consultant when such areas are ready. B. Compaction Testing Observation of the fill placement shall be provided by the Geotechnical Consultant during the progress of grading. Location and frequency of tests shall be at the Consultants discretion based on field conditions encountered. Compaction test locations will not necessarily be selected on a random basis. Test locations may be selected to verify adequacy of compaction levels in areas that are judged to be susceptible to inadequate compaction. C. Frequency of Compaction Testing In general, density tests should be made at intervals not exceeding 2 feet of fill height or every 1000 cubic yards of fill placed. This criteria will vary depending on soil conditions and the size of the job. In any event, an adequate number of field density tests shall be made to verify that the required compaction is being achieved. STANDARD GRADING SPECIFICATIONS Page 6 VIII. CONSTRUCTION CONSIDERATIONS A. Erosion control measures, when necessary, shall be provided by the Contractor during grading and prior to the completion and construction of permanent drainage controls. B. Upon completion of grading and termination of observations by the Geotechnical Consultant, no further filling or excavating, including that necessary for footings, foundations, large tree wells, retaining walls, or other features shall be performed without the approval of the Geotechnical Consultant. C. Care shall be taken by the Contractor during final grading to preserve any berms, drainage terraces, interceptor swales, or other devices of permanent nature on or adjacent to the property. S:\!BOILERS-WORK\REPORT INSERTS\STANDARD GRADING SPECS