HomeMy WebLinkAboutAppendix B - Health Risk Assessment
Tiffany Dang,
Associate Environmental Planner
Alex Garber,
Sr. Technical Planner
Conifer Self Storage
Construction
Health Risk
Assessment
Prepared for City of Fontana,
Planning Department
February 28, 2025
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TABLE OF CONTENTS
1 Introduction .............................................................................................................. 1
1.1 Access and Circulation............................................................................................................ 6
1.2 Parking Summary .................................................................................................................... 6
1.3 Purpose of the Report ............................................................................................................ 6
1.4 Summary of the Results .......................................................................................................... 6
2 Health Risk Assessment ........................................................................................... 8
2.1 SCAQMD Significance Thresholds ......................................................................................... 8
Project-Level ............................................................................................................................. 8
Cumulative ................................................................................................................................. 9
2.2 Health Risk Estimation Methodology ..................................................................................... 9
Cancer Risk ................................................................................................................................ 9
Chronic Non-Cancer Hazard ................................................................................................. 13
2.3 Estimation of Project DPM Emissions ................................................................................... 13
Construction DPM Emissions ................................................................................................... 13
Construction Equipment Emission Inventory Development ................................................... 14
Atmospheric Dispersion Methodology ....................................................................................... 17
2.4 Receptors .............................................................................................................................. 18
3 Results of the Health Risk Assessment ................................................................ 22
3.1 Project Health Risk Results .................................................................................................. 22
Conclusion.................................................................................................................... 24
4 References ............................................................................................................ 25
Figures
Figure 1: Project Location ..................................................................................................................... 2
Figure 2: Conceptual Site Plan ............................................................................................................ 4
Figure 3: Locations of the Project’s Construction On-Site and Off-Site DPM Emission Sources ... 20
Figure 4: Locations of Air Dispersion Model Receptors .................................................................. 21
Figure 5: Total Construction Model Output ...................................................................................... 23
Tables
Table 1: Exposure Assumptions for Cancer Risk–OEHHA/SCAQMD Guidance ............................. 12
Table 2: Construction Schedule ......................................................................................................... 14
Table 3: Proposed Project Construction Equipment Inventory ........................................................ 15
Table 4: Proposed Construction Vehicle Use ................................................................................... 16
Table 5: Project On-site and Off-Site Construction Source DPM Daily Emissions ......................... 16
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Table 6: General Modeling Assumptions ......................................................................................... 17
Table 7: Summary of Construction Emissions Source Configuration ............................................... 18
Table 8: Summary of Proposed Project Construction Health Risk .................................................. 22
Appendices
APPENDIX A – CALEEMOD OUTPUT FOR PROJECT CONSTRUCTION
APPENDIX B – AERMOD CONSTRUCTION MODEL OUTPUT
APPENDIX C – ESTIMATION OF PROJECT CONSTRUCTION DPM EMISSIONS
APPENDIX D – ESTIMATION OF CONSTRUCTION HEALTH RISK
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1 INTRODUCTION
This Health Risk Assessment (HRA) evaluates the potential impacts of the proposed Conifer Self Storage
Project (proposed Project). The Project is located southeast of the intersection of Conifer Court and Village
Drive in the City of Fontana (City), as shown in Figure 1, Project Location. The Project site is within the
jurisdiction of the South Coast Air Quality Management District (SCAQMD). The 13.16-acre Project site is
comprised of two parcels identified as Assessor Parcel Numbers (APNs) 0237-411-28 (Parcel 1, 5.67 acres)
and -29 (Parcel 2, 7.49 acres). The Project site is currently undeveloped but heavily disturbed.
The Project Applicant is proposing to construct and operate a self-storage facility on Parcel 1. The self-
storage facility would be 136,352 square feet (SF). Site improvements would include landscaping, community
trail, sidewalks, utility connections, implementation of stormwater facilities, and pavement of parking areas
and driveways. Additionally, as part of the Project, the Applicant would construct a 20-foot-wide public trail
on the City-owned Parcel 2. Construction of the proposed Project would be completed in two phases. Phase
1 would include construction of the self-storage buildings, public trail, and water quality basin. Phase 2
would include the construction of the RV storage area and the remaining landscaping. A portion of the rock
quarry south of the Project site would also be blasted and crushed for infill during construction. This area
total approximately 4.84 acres.
The Project proposes to develop the site with 18 buildings for self-storage uses (135,014 SF) and one office
building (1,338 SF) totaling 136,352 SF. The facility proposes a total of 688 storage units including 594
self-storage units and 94 recreational vehicle (RV) storage units. Site improvements would include
landscaping, community trail, sidewalks, utility connections, implementation of stormwater facilities, and
pavement of parking areas and driveways, as shown in Figure 2, Conceptual Site Plan.
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Figure 1: Project Location
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Figure 2: Conceptual Site Plan
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1.1 Access and Circulation
Access to the self-storage facility would be provided via a 30-foot-wide driveway from Village Drive.
Internal access to the self-storage portion of the Project would be provided via 26-foot-wide drive aisles
while access to the RV storage portion of the Project would be provided via 50-foot-wide drive aisles.
Pedestrian access to the public trail would be provided via Village Drive and a connection to the adjacent
Southridge Park.
1.2 Parking Summary
The Project site would provide a total of seven standard parking stalls, one ADA van stall, two motorbike
parking stalls, and a bicycle parking rack. As the Project is self-storage use, it would not include any truck
or trailer parking stalls. Parking details can be found in Figure 2, Conceptual Site Plan. Parking for the public
trail would be available via the adjacent Southridge Park or on Village Drive.
1.3 Purpose of the Report
To support the CEQA document for the proposed Project, this report evaluates the potential health impacts
to sensitive receptors from the construction of the Project. This HRA focuses on the impact of diesel particulate
matter (DPM) emitted from the Project’s construction on surrounding land uses. DPM has been identified by
the California Air Resources Board (CARB) as a carcinogenic substance responsible for nearly 70% of the
airborne cancer risk in California (California Air Resources Board, 2017). The estimated health risk impacts
from the Project construction were compared to the health risk significance thresholds recommended by the
SCAQMD for use in CEQA assessments.
This HRA employed the following tools to estimate the health impacts of the Project:
• The California Air Pollution Control Officers Association California Emissions Estimator Model
(CalEEMod, Version 2022.1) to calculate exhaust emissions from mobile sources such as diesel trucks
and construction equipment such as crawler tractors and cranes during the construction of the Project.
• The U.S. Environmental Protection Agency (EPA) AMS/EPA Regulatory Model (AERMOD Version
23132) air dispersion model to estimate DPM impacts to sensitive receptors.
• Cancer Risk Methodology from the California Office of Environmental Health Hazards Assessment
(OEHHA)2F (California Office of Environmental Health Hazards Assessment, 2015) and the SCAQMD
(South Coast Air Quality Management District, 2017).3F
1.4 Summary of the Results
The emissions from Project’s construction emissions would not result in cancer health risk results that exceed
the lifetime cancer risk threshold of 10 in one million at the maximum impacted sensitive receptor during the
construction of the Project. The Project’s maximum construction health risk would result in the following:
Maximum Project Construction Health Risk Results:
• Sensitive/residential receptor for the 30-year lifetime exposure duration: 6.62 in one million
• Worker receptor: 0.01 in one million
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• Sensitive receptor chronic non-cancer hazard index (HI): 0.01
• Worker receptor chronic non-cancer HI: <0.01
The Project construction would not exceed the SCAQMD significance threshold of 10 in one million, nor would
it exceed the HI threshold of 1.0. Therefore, the construction of the proposed Project would result in a less-
than-significant project-level result for cancer and non-cancer health risk.
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2 HEALTH RISK ASSESSMENT
An HRA is a guide that helps determine whether the risks from current or future exposures to a toxic chemical
or substance in the environment could affect the health of a population. In general, the quantification of risk
from the development of a project depends on the following factors:
• Identification of the toxic air contaminants (TACs) that may be present in the air;
• Estimation of the amount of TACs released from all emission sources using emission models;
• Estimation of the airborne concentrations of TACs in the geographic area of concern using air
dispersion models using information about emissions, source locations, weather, and other factors;
• Estimation of the level of exposure to different concentrations of the TACs at different geographic
locations and their consequential health impacts.
Thus, an HRA identifies the TACs that could affect public health, identifies the sources and quantities of the
TAC emissions, estimates where the emissions are transported by prevailing meteorological conditions, and
assesses the consequential health impacts due to the identified exposures.
The State of California Office of Environmental Health Hazards Assessment (OEHHA) has developed methods
for conducting HRAs. As defined under the Air Toxics "Hot Spots" Information and Assessment Act:
"A health risk assessment means a detailed, comprehensive analysis prepared pursuant to
Section 44361 to evaluate and predict the dispersion of hazardous substances in the
environment and the potential for exposure of human populations and to assess and quantify
both the individual and population-wide health risks associated with those levels of exposure”
(California Health and Safety Code).
The methodology used to estimate health risks and hazards that could potentially affect nearby sensitive
receptors from the emissions of TACs is described below. The methodology included assumptions regarding
emission source quantification, configurations and locations, receptor locations, air dispersion modeling, and
health risk modeling. As noted above, this HRA focused on DPM emissions that the ARB has identified as the
principal airborne carcinogenic substance in California. For purposes of this HRA, DPM was assumed to be
comprised of PM10 vehicle exhaust emissions, which measures particles with a diameter of 10 microns or less
(California Air Resources Board, n.d.).
2.1 SCAQMD Significance Thresholds
Project-Level
The City of Fontana has not adopted a numerical significance threshold for cancer risk or non-cancer hazards.
Therefore, the significance thresholds recommended by the SCAQMD were used for this assessment. The
relevant significance thresholds are provided below:
• Cancer Risk: ten (10) persons per million population as the maximum acceptable incremental cancer
risk due to exposure to TACs
• Non-Cancer Hazard Index (HI): 1.0
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These thresholds are discussed further in Section 2.2, Health Risk Estimation Methodology.
Cumulative
The SCAQMD conducted an analysis of the cumulative effects of TACs within the South Coast Air Basin as
part of its Multiple Air Toxics Exposure Study in the South Coast Air Basin (MATES-V, the draft version of this
MATES study series) (South Coast Air Quality Management District, 2021). The MATES-V Study expresses
cumulative TAC impacts in terms of potential increased cancer risks. Cumulative impact thresholds derive
from this study, since the Project site is within the MATES-V Study area. The MATES-V Study estimates the
cumulative TAC-source cancer risk for the localized area encompassing the Project site ranges from 300 to
400 in one million. DPM-source cancer risks are reflected in the area’s ambient cumulative cancer risk along
with all other TAC-source risks and account for the predominance (68%) of the total risk. A cancer risk upper
limit of 400 in a million was assumed to comprise the impact from existing TAC emission sources in the region
without the impacts from the Project.
The TAC emissions inventory used in the MATES-V study to estimate health impacts was representative of
emissions for the year 2018. In addition to the MATES-V cumulative TAC-source cancer risk noted above,
other new or proposed potential TAC-generating projects (related projects) in the Project area not included
in the MATES V study could contribute to cumulative TAC impacts. The SCAQMD has published a white paper
on addressing cumulative impacts from air pollution (South Coast Air Quality Management District, 2003).6F
The white paper recommends a 1,000-foot distance from a proposed project to identify other development
projects that could contribute to cumulative impacts (South Coast Air Quality Management District , 2019).7F
The 1,000-foot evaluation distance is supported by research-based findings concerning TAC emission
dispersion rates from roadways and large sources, showing that emissions diminish substantially between
500 and 1,000 feet from emission sources. While the cumulative analysis incorporates future emissions within
1,000 feet of the source, the project-specific and cumulative significance thresholds of 10 in one million
remain the same.
2.2 Health Risk Estimation Methodology
Cancer Risk
Cancer risks are estimated as the upper-bound incremental probability that an individual would develop
cancer due to exposure to potential carcinogens over a specified exposure duration. The estimated risk is
expressed as a probability since there is no level below which some level of impact may occur. The cancer
risk attributed to a chemical is calculated by multiplying the chemical intake or dose at the human exchange
boundaries (e.g., lungs) by the chemical-specific cancer potency factor (CPF). A risk level of 10 in one million
implies a likelihood that up to 10 people in a population of one million equally exposed people could
contract cancer if exposed continuously (24 hours per day) to the levels of TACs over a specified duration
of time. This risk is an excess cancer risk in addition to any environmental cancer risk borne by a person not
exposed to these air toxins.
The exposure dose is the amount of a chemical taken into the body at a given time. In particular, the exposure
dose through inhalation (Doseair) is a function of the breathing rate, the exposure frequency, and the
concentration of exposures. Breathing rates change over time for different age groups and are determined
for specific age groups. The Doseair is calculated for each of the following age groups: third trimester to
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birth, and 0 to 2, 2 to 16, and 16 to 30 years of age. The OEHHA recommends that the 30-year exposure
duration be used as the basis for public notification and risk reduction audits and plans (California Office
of Environmental Health Hazards Assessment, 2015). The risks for each age group are summed together to
provide a total estimate of lifetime cancer risks for sensitive receptors. To estimate the cancer risk, the Doseair
is estimated by applying the following equation to the DPM concentration at each receptor as calculated by
the air dispersion model:
Doseair = CDPM x DBRi x A x EFi (EQ-1)
Where:
Doseair = dose through inhalation (mg/kg/day)
CDPM = period average concentration of DPM as estimated by the air dispersion model (µg/m3)
DBR = daily breathing rate for each age group (liters/kg-day)—see Table 1
A = Inhalation absorption factor (unitless = 1)
EF = exposure frequency (days per year)
i – number of age groups
The dose is multiplied by the cancer potency factor, the age sensitivity factors (ASF), the exposure duration
(ED), and the fraction of time spent at home (FAH, for sensitive/residential receptors only) divided by
averaging time (AT) to estimate of cancer risk:
Cancer Risk = Doseair,i x CPF x ASFi x EDi x FAHi/AT (EQ-2)
Where:
Cancer Risk = Total individual excess inhalation cancer risk, defined as the cancer risk a
hypothetical individual faces if exposed to carcinogenic emissions from a particular source for
specified exposure durations; this risk is summed over all age groups; cancer risk is expressed
in terms of risk per million exposed individuals.
Doseair,i = inhalation dose through inhalation (mg/kg-day)
CPF = inhalation cancer potency factor (mg/kg-day)-1
ASFi = age sensitivity factors (see Table 1)
EDi = exposure duration (years)—see Table 1
AT = averaging time of lifetime cancer risk (70 years or 25550 days)
FAHi = fraction of time spent at home—see Table 1
n = number of age groups
While the OEHHA recommends that the 30-year exposure duration be used as the basis for public
notification and risk reduction audits and plans, the Project’s construction duration is expected to only span
1.15 years, and no significant DPM emissions are anticipated to occur after the completion of the Project’s
construction during the operation of the Project. Thus, for the remainder of this report, the lifetime cancer risk
will refer to the construction’s time span of 1.15 years.
Therefore, for the purpose of this HRA, the exposure duration for sensitive/residential receptors’ lifetime
cancer risk was assumed to only analyze a daily construction duration of eight hours, five days a week, as
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a reasonable assumption for the site’s construction operation hours and was assumed to span the duration of
a third trimester pre-birth in 2025 (the Project's starting year of construction) to the year 2026, when the
Project’s construction would conclude. Estimates of cancer risk were also provided for informational purposes
for adult exposure, also spanning the duration of construction.
Table 1 provides the values for the various cancer risk parameters shown in equations EQ-1 and EQ-2 for
the receptor groups examined in this assessment for the construction of the Project. For DPM, the value of the
CPF is 1.1 milligrams per kilogram per day.
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Table 1: Exposure Assumptions for Cancer Risk–OEHHA/SCAQMD Guidance
Age Group
Exposure Frequency, EF
Exposure Duration
(ED)
(Years)
Age
Sensitivity
Factors (ASF)
Fraction Time
at Home
(FAH)
Daily
Breathing
Ratea
(DBR)
(l/kg-day)
Construction Operation
Hours/Day Days/Year Hours/Day Days/Year
Sensitive/Residential Receptor – Pre-birth to Adult (30-year duration)
3rd Trimester to Birth 8 250 24 350 0.25 10 1 361
0 to 2 years 8 250 24 350 1.13 10 1 1,090
2 to 16 years 8 250 24 350 3 1 745
16 to 30 years 8 250 24 350 1 0.73 335
Sensitive Receptor/Residential Child (9-year duration)
3rd Trimester to Birth 8 250 24 350 0.25 10 1 361
0 to 2 years 8 250 24 350 1.13 10 1 1,090
2 to 9 years 8 250 24 350 3 1 861
Sensitive Receptor/Residential Receptor – Adult (30-year duration)
17 years and older 8 250 24 350 1.38 1 0.73 335
Worker Receptor (25-years duration)
17 years and older 8 250 8 350 1.38 1 230
a Daily breathing rates are representative of the 95th percentile for sensitive/residential receptors.
(L/kg-day) = liters per kilogram body weight per day
Source: SCAQMD Rule 1401
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Chronic Non-Cancer Hazard
TACs can also cause chronic (long-term) effects on non-cancer illnesses such as reproductive effects, birth
defects, or adverse environmental effects. Non-cancer health risks are conveyed in terms of the Hazard
Index (HI). A ratio of the predicted concentration of the facility's reported TAC emissions to a concentration
is considered acceptable to public health professionals. A significant risk is defined as an HI of 1.0 or greater.
An HI of less than 1 indicates that no significant health risks are expected from the facility's TAC emissions.
The following equation gives the relationship for the non-cancer hazards for TACs:
HI = Cann/REL (EQ-3)
Where:
HI = Hazard Index: an expression of the potential for chronic non-cancer health risks
Cann = Annual average TAC concentration (µg/m3)
REL = Reference Exposure Level: the DPM concentration at which no adverse health effects are
anticipated
As predicted by the air dispersion model, annual concentrations of DPM are used to estimate chronic non-
cancer hazards. The OEHHA has defined a REL for DPM of 5 µg/m3.
2.3 Estimation of Project DPM Emissions
Construction DPM Emissions
Construction emissions were calculated using the latest CalEEMod Version 2022.1. For purposes of the model,
the proposed Project was assumed to be fully constructed in one phase. Since emissions impacts are derived
by the concentration of daily emissions, analyzing the construction of the Project as a whole would provide
the most conservative analysis. DPM construction emissions were based on the CalEEMod construction runs for
the proposed construction schedule and equipment inventory, using exhaust PM10 construction emissions to
represent DPM emissions. Construction-related DPM emissions are expected to primarily occur as a function
of heavy-duty equipment that would operate on-site during the construction phase. Additional DPM emissions
would occur from the operation of construction vehicles that travel to/from the Project during construction
(haul trucks, vendor trucks, and worker vehicles).
These travel link assumptions can be found in Appendix C.
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Construction Equipment Emission Inventory Development
The first requirement to conduct the HRA involves identifying and quantifying the sources of construction DPM
air emissions from the Project, also termed an emissions inventory. Each piece of equipment that emits DPM
is identified in terms of its location and physical characteristics (release height, release temperature, etc.)
and the chemical nature of the emissions. The predominant sources of DPM emissions resulting from the
construction of the Project derive from the heavy-duty diesel trucks that travel to, from, and within the Project
site each day, as well as the off-road construction equipment used during the five construction phases: site
preparation, grading, building construction, paving, and architectural coating. The Project’s DPM exhaust
emissions were calculated using the PM10 exhaust emissions calculated from CalEEMod. Table 2 shows the
Project’s construction schedule and Table 3 shows the Project’s proposed construction equipment. Table 4
shows the proposed construction vehicle use for worker, vendor, and hauling trips. Table 5 depicts the daily
average DPM emissions of the Project’s construction. Figure 3 provides the locations of the on-site and off-
site construction DPM emission sources.
Table 2: Construction Schedule
Activity Start Date End Date Total Days
Site Preparation 4/1/2025 4/28/2025 20
Demolition (Rock blasting/crushing) 5/27/2025 8/4/2025 50
Grading 4/29/2025 5/26/2025 20
Building Construction 8/5/2025 6/22/2026 230
Paving 6/23/2026 7/20/2026 20
Architectural Coating 7/21/2026 8/17/2026 20
Source: See CalEEMod Output in Appendix A.
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Table 3: Proposed Project Construction Equipment Inventory
Activity Equipment Number
per day
Hours
per
day
Horse-
power
Load
Factor
Site Preparation
Rubber Tired Dozers 3 8 367 0.4
Crawler Tractors 4 8 87 0.43
Demolition (Rock
blasting/crushing) Crushing/Proc. Equipment 1 8 200 0.6
Grading
Excavators 2 8 36 0.38
Graders 1 8 148 0.41
Rubber Tired Dozers 1 8 367 0.4
Crawler Tractors 3 8 87 0.43
Building Construction Cranes 1 8 367 0.29
Forklifts 3 8 82 0.2
Generator Sets 1 8 14 0.74
Tractors/Loaders/Backhoes 3 8 84 0.37
Welders 1 8 46 0.45
Paving
Pavers 2 8 81 0.42
Paving Equipment 2 8 89 0.36
Rollers 2 8 36 0.38
Architectural Coating Air Compressors 1 8 37 0.48
Source: See CalEEMod Output in Appendix A.
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Table 4: Proposed Construction Vehicle Use
Activity Daily Worker Trips Daily Vendor Trips Total Haul Trips
Site Preparation 18 0 0
Demolition (Rock blasting/crushing) 3 0 0
Grading 15 0 23
Building Construction 58 23 0
Paving 15 0 0
Architectural Coating 12 0 0
Source: See CalEEMod Output in Appendix A.
Table 5: Project On-site and Off-Site Construction Source DPM Daily Emissions
Activity Work Days
On-Site Off-Site Total
Maximum Daily
DPM Emissions(1)
(pounds/day)
Maximum Daily
DPM Emissions(1)
(pounds/day)
Average Daily
Construction
Emissions
(pounds/day)
2025
Site Preparation 20 1.93 <0.01
Demolition (Rock
blasting/crushing) 50 0.07 <0.01
Grading 20 1.15 0.01
Building Construction 107 0.47 0.01
Maximum Daily Construction Emissions 2025 1.93 0.01 1.94
2026
Building Construction 123 0.41 0.01
Paving 20 0.32 <0.01
Architectural Coating 20 0.03 <0.01
Maximum Daily Construction Emissions 2026 0.41 0.01 0.42
2025-2026 Maximum Daily Construction Emissions (pounds/day) 1.94
Source: See Data Attachment in Appendix C.
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Atmospheric Dispersion Methodology
Atmospheric dispersion modeling is the mathematical simulation of how air pollutants disperse in the ambient
atmosphere. The modeling is performed with computer programs that solve algorithms simulating the
movement and dispersion of air pollutants. The air dispersion model uses emissions from various emission
sources and meteorological data such as wind speed and direction, air temperature, and atmospheric mixing
rates to estimate the air pollutant impacts at various geographic locations (referred to as receptor locations).
Tables 6 and 7 provide the general assumptions applied in the AERMOD model (Version 23132). The
AERMOD output sheets can be found in Appendix B for construction, respectively.
Table 6: General Modeling Assumptions
Feature Assumption
Terrain Processing
Complex terrain; elevations were obtained for the Project site using the
EPA AERMAP terrain data pre-processor Version 18081; Data Set:
9048_75m.dem.rtf
Land Use Urban – Based on land use patterns surrounding the Project site.
Meteorological Data
The Fontana National Weather Service (NWS) Station was used for the
years of 2011-2013 and 2015-2016 as representative of
meteorological conditions on the Project site.
Receptor Locations
A uniform network grid was used to include all existing residences and
worker locations surrounding the Project site. Additional receptors were
located at nearby residences and nearby schools. Receptors were
placed at ground level.
Population San Bernardino County: ~ 2.196 million
Source: See Data Attachment in Appendix B.
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Table 7: Summary of Construction Emissions Source Configuration
Emission Source
Type
Geometric
Configuration Relevant Assumptions
Construction
Sources
Polygon Area
Source
• Size of the construction area source was the size of the Project
area to be graded and constructed (construction site
approximately 9.3 acres and blasting site approximately 4.84
acres, or 57,223 m2 total).
• Construction equipment emission source release height – 5
meters.
• Emissions generated from the CalEEMod model.
• Construction operation: Assumed 8 hours per day, 5 days a
week.
On-Site
Construction Vehicle
Traffic
Line Area
Sources
• Line source height of 3.11 meters (10.2 feet) and plume height of
6.2 meters (20.4 feet) (from EPA Haul Roads Calculator);
Construction on-site access:
o 100% of on-site truck trips to/from the perimeter Project
site.
• Assumed two lanes, in and out of driveways on-site as number of
truck trips.
• Vehicle types: see Table 7, Diesel Heavy-Duty Truck Vehicle Fleet,
and Table 8, Number of Daily Project Diesel Truck Vehicle Trips.
• Construction operation: Assumed 8 hours per day, 5 days a
week.
Off-Site
Construction Vehicle
Traffic
Line Area
Source
• Line source release height of 3.11 meters (10.2 feet) with a
plume height of 6.2 meters (20.4 feet) (from EPA Haul Roads
Calculator).
o 100% of off-site truck trips to/from the Project Site and
State Route 60 was conservatively assumed to utilize the
truck route which passed by the greatest number of sensitive
receptors
• Construction operation: Assumed 8 hours per day, 5 days a
week.
Source: See Data Attachment in Appendix B.
2.4 Receptors
The SCAQMD defines a sensitive receptor as any residence, including private homes, condominiums,
apartments, and living quarters, schools, preschools, daycare centers, and health facilities such as hospitals
or retirement and nursing homes. A sensitive receptor includes long-term care hospitals, hospices, prisons, and
dormitories, or similar live-in housing. For the purpose of this HRA, sensitive receptors were placed within the
air dispersion model at the locations of the closest existing residences and other establishments or residences
nearest to the Project site that qualify as sensitive receptors. Receptor points were placed on existing
residences and schools along the Project’s travel routes, as well as the closest worker receptors to the Project’s
boundary. In addition, a uniform grid network of receptors was placed over the Project site to complete the
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receptor network. These receptors were used to evaluate the health risk during the Project’s construction,
including on-site source emissions and along the off-site Project routes. The closest receptors to the Project
site and the Project’s on-site and off-site travel links approximate the maximum DPM emissions from the
construction of the Project and thus yield the highest cancer risk values. The sensitive receptor closest to the
Project site was determined to be residential homes approximately 23 meters (75 feet) north of the Project’s
northern boundary, while the nearest worker receptor was determined to be the San Bernardino County Fire
Station 74, located approximately 125 meters (410 feet) to the northwest of the Project’s northern boundary.
Figure 4 shows the receptor locations included in the HRA.
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Figure 3: Locations of the Project’s Construction On-Site and Off-Site DPM Emission
Sources
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Figure 4: Locations of Air Dispersion Model Receptors
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3 RESULTS OF THE HEALTH RISK ASSESSMENT
3.1 Project Health Risk Results
Table 8 presents a summary of the cancer risks resulting from the Project's construction DPM emissions, along
with the SCAQMD health risk significance thresholds. As shown in Tables 8, the estimated maximum cancer
risk for construction is 6.62 in one million for sensitive/residential receptors. The estimated maximum cancer
risk for worker receptors during construction is 0.01 in one million. In addition, the Project’s estimated non-
cancer health risk is 0.01 and <0.01, for the maximum impacted sensitive receptor and worker receptor,
respectively. The construction maximum cancer risk would not exceed the SCAQMD significance threshold of
10 in one million. Nor would the construction maximum non-cancer risk exceed the SCAQMD threshold of
1.0. Thus, the Project would have a less-than-significant impact related to both cancer and non-cancer health
risks. Figure 5, Total Construction Model Output, shows the concentration contours of the DPM emissions.
Table 8: Summary of Proposed Project Construction Health Risk
Receptor
Cancer Risk (per million) Exceeds
Significance
Threshold? Maximum Lifetime
Proposed Project Risk
Significance
Threshold
Maximum Impacted Sensitive Receptor – Infant
to Adult (30 years) 6.62 10 No
Maximum Impacted Sensitive Receptor – Adult 0.18 10 No
Maximum Impacted Worker Receptor 0.01 10 No
Receptor
Chronic Non-Cancer Hazard Index Exceeds
Significance
Threshold? Maximum Lifetime
Proposed Project Risk
Significance
Threshold
Maximum Impacted Sensitive Receptor – Infant
to Adult (30 years) 0.01 1.0 No
Maximum Impacted Sensitive Receptor – Adult 0.01 1.0 No
Maximum Impacted Worker Receptor <0.01 1.0 No
Source: See Data Attachment in Appendix D.
The SCAQMD Basin has a nonattainment status, meaning the Basin does not meet national air quality
standards for certain criteria pollutants. Project-specific thresholds were established at levels intended to
reduce cumulative health risk impacts. Therefore, project-specific thresholds are the same as cumulative
thresholds. Since the Project would not exceed project-level thresholds, it would also have a less-than-
significant cumulative impact to cancer and non-cancer health risks.
Health Risk Assessment
23 Conifer Self Storage Project
Figure 5: Total Construction Model Output
PROJECT SITE INSET
Health Risk Assessment
24 Conifer Self Storage Project
CONCLUSION
The emissions from the Project’s construction would not result in cancer health risk results that exceed the
lifetime cancer risk threshold of 10 in one million at the maximum impacted sensitive receptor. The Project’s
emissions for construction impacts would also not result in a non-cancer risk greater than the 1.0 non-cancer
hazard index threshold. The Project’s maximum construction health risk impacts would result in the following:
Maximum Project Construction Health Risk Impacts:
• Sensitive/residential receptor for the 30-year lifetime exposure duration: 6.62 in one million
• Worker receptor: 0.01 in one million
• Sensitive receptor chronic non-cancer HI: 0.01
• Worker receptor chronic non-cancer HI: <0.01
The Project construction health risk results would not exceed the SCAQMD significance thresholds of 10
in one million for cancer risk and 1.0 for non-cancer HI. Therefore, the construction of the proposed
Project would result in a less-than-significant Project-level and cumulative-level impact for cancer and
non-cancer health risk without mitigation.
Health Risk Assessment
25 Conifer Self Storage Project
4 REFERENCES
California Air Resources Board. (2017). Study Links California Regulations, Dramatic Declines in Cancer Risk
from Exposure to Air Toxics. Retrieved from https://ww2.arb.ca.gov/news/study-links-california-
regulations-dramatic-declines-cancer-risk-exposure-air-toxics
California Health and Safety Code. (n.d.). Section 44306 Chapter 1252. (1987) AB 2588.
California Office of Environmental Health Hazards Assessment. (2015). Risk Assessment Guidelines,
Guidance Manual for Preparation of Health Risk Assessments. Page 8-6.
California Office of Environmental Health Hazards Assessment. (2015). Risk Assessment Guidelines.
Guidance Manual for Preparation of Health Risk Assessments. Retrieved from Air Toxics Hot Spots
Program : https://oehha.ca.gov/media/downloads/crnr/2015guidancemanual.pdf
South Coast Air Quality Management District . (2019). CEQA Comment Letter, Mitigated Negative
Declaration (MND) for the Proposed Alder II Warehouse Project. . Retrieved from
http://www.aqmd.gov/docs/default-source/ceqa/comment-letters/2019/january/SBC181221-
08.pdf?sfvrsn=8.
South Coast Air Quality Management District. (2003). White Paper on Potential Control Strategies to
Address Cumulative Impacts from Air Pollution.
South Coast Air Quality Management District. (2017). Retrieved from Risk Assessment Procedures for Rules
1401, 1401.1, 1402, and 212, Version 8.1.
South Coast Air Quality Management District. (2021). Multiple Air Toxics Exposure Study in the South Coast
Air Basin (MATES-V). . Retrieved from http://www.aqmd.gov/home/air-quality/air-quality-
studies/health-studies/mates-v
Health Risk Assessment
Conifer Self Storage Project
APPENDIX A – CALEEMOD OUTPUT FOR PROJECT CONSTRUCTION
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Conifer-RockCrushing-Exp-v2 Detailed Report
Table of Contents
1. Basic Project Information
1.1. Basic Project Information
1.2. Land Use Types
1.3. User-Selected Emission Reduction Measures by Emissions Sector
2. Emissions Summary
2.1. Construction Emissions Compared Against Thresholds
2.2. Construction Emissions by Year, Unmitigated
2.4. Operations Emissions Compared Against Thresholds
2.5. Operations Emissions by Sector, Unmitigated
3. Construction Emissions Details
3.1. Demolition (2025) - Unmitigated
3.3. Site Preparation (2025) - Unmitigated
3.5. Grading (2025) - Unmitigated
3.7. Building Construction (2025) - Unmitigated
3.9. Building Construction (2026) - Unmitigated
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3.11. Paving (2026) - Unmitigated
3.13. Architectural Coating (2026) - Unmitigated
4. Operations Emissions Details
4.1. Mobile Emissions by Land Use
4.1.1. Unmitigated
4.2. Energy
4.2.1. Electricity Emissions By Land Use - Unmitigated
4.2.3. Natural Gas Emissions By Land Use - Unmitigated
4.3. Area Emissions by Source
4.3.1. Unmitigated
4.4. Water Emissions by Land Use
4.4.1. Unmitigated
4.5. Waste Emissions by Land Use
4.5.1. Unmitigated
4.6. Refrigerant Emissions by Land Use
4.6.1. Unmitigated
4.7. Offroad Emissions By Equipment Type
4.7.1. Unmitigated
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4.8. Stationary Emissions By Equipment Type
4.8.1. Unmitigated
4.9. User Defined Emissions By Equipment Type
4.9.1. Unmitigated
4.10. Soil Carbon Accumulation By Vegetation Type
4.10.1. Soil Carbon Accumulation By Vegetation Type - Unmitigated
4.10.2. Above and Belowground Carbon Accumulation by Land Use Type - Unmitigated
4.10.3. Avoided and Sequestered Emissions by Species - Unmitigated
5. Activity Data
5.1. Construction Schedule
5.2. Off-Road Equipment
5.2.1. Unmitigated
5.3. Construction Vehicles
5.3.1. Unmitigated
5.4. Vehicles
5.4.1. Construction Vehicle Control Strategies
5.5. Architectural Coatings
5.6. Dust Mitigation
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5.6.1. Construction Earthmoving Activities
5.6.2. Construction Earthmoving Control Strategies
5.7. Construction Paving
5.8. Construction Electricity Consumption and Emissions Factors
5.9. Operational Mobile Sources
5.9.1. Unmitigated
5.10. Operational Area Sources
5.10.1. Hearths
5.10.1.1. Unmitigated
5.10.2. Architectural Coatings
5.10.3. Landscape Equipment
5.11. Operational Energy Consumption
5.11.1. Unmitigated
5.12. Operational Water and Wastewater Consumption
5.12.1. Unmitigated
5.13. Operational Waste Generation
5.13.1. Unmitigated
5.14. Operational Refrigeration and Air Conditioning Equipment
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5.14.1. Unmitigated
5.15. Operational Off-Road Equipment
5.15.1. Unmitigated
5.16. Stationary Sources
5.16.1. Emergency Generators and Fire Pumps
5.16.2. Process Boilers
5.17. User Defined
5.18. Vegetation
5.18.1. Land Use Change
5.18.1.1. Unmitigated
5.18.1. Biomass Cover Type
5.18.1.1. Unmitigated
5.18.2. Sequestration
5.18.2.1. Unmitigated
6. Climate Risk Detailed Report
6.1. Climate Risk Summary
6.2. Initial Climate Risk Scores
6.3. Adjusted Climate Risk Scores
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6.4. Climate Risk Reduction Measures
7. Health and Equity Details
7.1. CalEnviroScreen 4.0 Scores
7.2. Healthy Places Index Scores
7.3. Overall Health & Equity Scores
7.4. Health & Equity Measures
7.5. Evaluation Scorecard
7.6. Health & Equity Custom Measures
8. User Changes to Default Data
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1. Basic Project Information
1.1. Basic Project Information
Data Field Value
Project Name Conifer-RockCrushing-Exp-v2
Construction Start Date 4/1/2025
Operational Year 2026
Lead Agency City of Fontana
Land Use Scale Project/site
Analysis Level for Defaults County
Windspeed (m/s)2.80
Precipitation (days)6.80
Location 34.043181641966314, -117.47975443938253
County San Bernardino-South Coast
City Fontana
Air District South Coast AQMD
Air Basin South Coast
TAZ 5313
EDFZ 10
Electric Utility Southern California Edison
Gas Utility Southern California Gas
App Version 2022.1.1.29
1.2. Land Use Types
Land Use Subtype Size Unit Lot Acreage Building Area (sq ft)Landscape Area (sq
ft)
Special Landscape
Area (sq ft)
Population Description
Unrefrigerated
Warehouse-No Rail
136 1000sqft 4.46 136,352 58,186 ———
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Parking Lot 9.00 Space 0.08 0.00 0.00 ———
Other Asphalt
Surfaces
2.95 Acre 2.95 0.00 0.00 ———
Other Non-Asphalt
Surfaces
0.57 Acre 1.81 0.00 53,813 ———
1.3. User-Selected Emission Reduction Measures by Emissions Sector
No measures selected
2. Emissions Summary
2.1. Construction Emissions Compared Against Thresholds
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual)
Un/Mit.ROG NOx CO SO2 PM10E PM10T PM2.5T CO2e
Daily, Summer
(Max)
————————
Unmit.66.4 37.5 33.8 0.05 1.93 7.82 4.52 5,798
Daily, Winter (Max)————————
Unmit.1.48 12.4 17.9 0.03 0.48 1.42 0.67 4,111
Average Daily
(Max)
————————
Unmit.4.18 6.93 8.32 0.01 0.31 1.07 0.56 1,797
Annual (Max)————————
Unmit.0.76 1.26 1.52 < 0.005 0.06 0.19 0.10 298
Exceeds (Daily
Max)
————————
Threshold 75.0 100 550 150 —150 55.0 —
Unmit.No No No No —No No —
Exceeds (Average
Daily)
————————
Threshold 75.0 100 550 150 —150 55.0 —
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Unmit.No No No No —No No —
2.2. Construction Emissions by Year, Unmitigated
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual)
Year ROG NOx CO SO2 PM10E PM10T PM2.5T CO2e
Daily - Summer
(Max)
————————
2025 4.13 37.5 33.8 0.05 1.93 7.82 4.52 5,798
2026 66.4 11.6 18.6 0.03 0.42 1.36 0.61 4,153
Daily - Winter (Max)————————
2025 1.48 12.4 17.9 0.03 0.48 1.42 0.67 4,111
2026 1.40 11.7 17.6 0.03 0.42 1.36 0.61 4,083
Average Daily ————————
2025 0.79 6.93 8.32 0.01 0.31 1.07 0.56 1,797
2026 4.18 4.43 6.72 0.01 0.16 0.50 0.23 1,498
Annual ————————
2025 0.14 1.26 1.52 < 0.005 0.06 0.19 0.10 298
2026 0.76 0.81 1.23 < 0.005 0.03 0.09 0.04 248
2.4. Operations Emissions Compared Against Thresholds
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual)
Un/Mit.ROG NOx CO SO2 PM10E PM10T PM2.5T CO2e
Daily, Summer
(Max)
————————
Unmit.4.81 1.22 11.1 0.02 0.07 1.06 0.32 3,364
Daily, Winter (Max)————————
Unmit.3.80 1.21 4.39 0.01 0.06 1.05 0.31 3,263
Average Daily
(Max)
————————
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Unmit.4.43 1.21 8.31 0.01 0.07 0.98 0.30 3,211
Annual (Max)————————
Unmit.0.81 0.22 1.52 < 0.005 0.01 0.18 0.05 532
Exceeds (Daily
Max)
————————
Threshold 55.0 55.0 550 150 —150 55.0 —
Unmit.No No No No —No No —
Exceeds (Average
Daily)
————————
Threshold 55.0 55.0 550 150 —150 55.0 —
Unmit.No No No No —No No —
Exceeds (Annual)————————
Threshold ———————3,000
Unmit.———————No
2.5. Operations Emissions by Sector, Unmitigated
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual)
Sector ROG NOx CO SO2 PM10E PM10T PM2.5T CO2e
Daily, Summer
(Max)
————————
Mobile 0.50 0.47 4.56 0.01 0.01 1.00 0.26 1,188
Area 4.27 0.05 5.93 < 0.005 0.01 0.01 0.01 24.5
Energy 0.04 0.70 0.58 < 0.005 0.05 0.05 0.05 1,437
Water ———————473
Waste ———————242
Total 4.81 1.22 11.1 0.02 0.07 1.06 0.32 3,364
Daily, Winter (Max)————————
Mobile 0.47 0.51 3.80 0.01 0.01 1.00 0.26 1,111
Area 3.30 ———————
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Energy 0.04 0.70 0.58 < 0.005 0.05 0.05 0.05 1,437
Water ———————473
Waste ———————242
Total 3.80 1.21 4.39 0.01 0.06 1.05 0.31 3,263
Average Daily ————————
Mobile 0.43 0.48 3.66 0.01 0.01 0.92 0.24 1,042
Area 3.96 0.03 4.06 < 0.005 0.01 0.01 0.01 16.8
Energy 0.04 0.70 0.58 < 0.005 0.05 0.05 0.05 1,437
Water ———————473
Waste ———————242
Total 4.43 1.21 8.31 0.01 0.07 0.98 0.30 3,211
Annual ————————
Mobile 0.08 0.09 0.67 < 0.005 < 0.005 0.17 0.04 173
Area 0.72 0.01 0.74 < 0.005 < 0.005 < 0.005 < 0.005 2.78
Energy 0.01 0.13 0.11 < 0.005 0.01 0.01 0.01 238
Water ———————78.3
Waste ———————40.0
Total 0.81 0.22 1.52 < 0.005 0.01 0.18 0.05 532
3. Construction Emissions Details
3.1. Demolition (2025) - Unmitigated
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual)
Location ROG NOx CO SO2 PM10E PM10T PM2.5T CO2e
Onsite ————————
Daily, Summer
(Max)
————————
Demolition —————0.00 0.00 —
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Onsite truck 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
Daily, Winter (Max)————————
Average Daily ————————
Demolition —————0.00 0.00 —
Onsite truck 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
Annual ————————
Demolition —————0.00 0.00 —
Onsite truck 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
Offsite ————————
Daily, Summer
(Max)
————————
Worker 0.01 0.01 0.19 0.00 0.00 0.03 0.01 35.8
Vendor 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
Hauling 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
Daily, Winter (Max)————————
Average Daily ————————
Worker < 0.005 < 0.005 0.02 0.00 0.00 < 0.005 < 0.005 4.55
Vendor 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
Hauling 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
Annual ————————
Worker < 0.005 < 0.005 < 0.005 0.00 0.00 < 0.005 < 0.005 0.75
Vendor 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
Hauling 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
3.3. Site Preparation (2025) - Unmitigated
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual)
Location ROG NOx CO SO2 PM10E PM10T PM2.5T CO2e
Onsite ————————
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Daily, Summer
(Max)
————————
Off-Road
Equipment
4.05 37.5 32.4 0.05 1.93 1.93 1.78 5,547
Dust From Material
Movement
—————5.66 2.69 —
Onsite truck 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
Daily, Winter (Max)————————
Average Daily ————————
Off-Road
Equipment
0.22 2.05 1.78 < 0.005 0.11 0.11 0.10 304
Dust From Material
Movement
—————0.31 0.15 —
Onsite truck 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
Annual ————————
Off-Road
Equipment
0.04 0.37 0.32 < 0.005 0.02 0.02 0.02 50.3
Dust From Material
Movement
—————0.06 0.03 —
Onsite truck 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
Offsite ————————
Daily, Summer
(Max)
————————
Worker 0.08 0.08 1.36 0.00 0.00 0.23 0.05 250
Vendor 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
Hauling 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
Daily, Winter (Max)————————
Average Daily ————————
Worker < 0.005 0.01 0.06 0.00 0.00 0.01 < 0.005 12.7
Vendor 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
Hauling 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
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Annual ————————
Worker < 0.005 < 0.005 0.01 0.00 0.00 < 0.005 < 0.005 2.11
Vendor 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
Hauling 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
3.5. Grading (2025) - Unmitigated
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual)
Location ROG NOx CO SO2 PM10E PM10T PM2.5T CO2e
Onsite ————————
Daily, Summer
(Max)
————————
Off-Road
Equipment
2.30 20.6 19.6 0.03 1.15 1.15 1.05 3,145
Dust From Material
Movement
—————2.26 0.94 —
Onsite truck 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
Daily, Winter (Max)————————
Average Daily ————————
Off-Road
Equipment
0.13 1.13 1.07 < 0.005 0.06 0.06 0.06 172
Dust From Material
Movement
—————0.12 0.05 —
Onsite truck 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
Annual ————————
Off-Road
Equipment
0.02 0.21 0.20 < 0.005 0.01 0.01 0.01 28.5
Dust From Material
Movement
—————0.02 0.01 —
Onsite truck 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
Offsite ————————
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————————Daily, Summer
(Max)
Worker 0.07 0.07 1.17 0.00 0.00 0.20 0.05 215
Vendor 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
Hauling 0.03 1.88 1.06 0.01 0.02 0.44 0.14 1,657
Daily, Winter (Max)————————
Average Daily ————————
Worker < 0.005 < 0.005 0.05 0.00 0.00 0.01 < 0.005 10.9
Vendor 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
Hauling < 0.005 0.11 0.06 < 0.005 < 0.005 0.02 0.01 90.7
Annual ————————
Worker < 0.005 < 0.005 0.01 0.00 0.00 < 0.005 < 0.005 1.81
Vendor 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
Hauling < 0.005 0.02 0.01 < 0.005 < 0.005 < 0.005 < 0.005 15.0
3.7. Building Construction (2025) - Unmitigated
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual)
Location ROG NOx CO SO2 PM10E PM10T PM2.5T CO2e
Onsite ————————
Daily, Summer
(Max)
————————
Off-Road
Equipment
1.21 11.3 14.1 0.03 0.47 0.47 0.43 2,639
Onsite truck 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
Daily, Winter (Max)————————
Off-Road
Equipment
1.21 11.3 14.1 0.03 0.47 0.47 0.43 2,639
Onsite truck 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
Average Daily ————————
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Off-Road
Equipment
0.35 3.30 4.12 0.01 0.14 0.14 0.13 770
Onsite truck 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
Annual ————————
Off-Road
Equipment
0.06 0.60 0.75 < 0.005 0.02 0.02 0.02 127
Onsite truck 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
Offsite ————————
Daily, Summer
(Max)
————————
Worker 0.26 0.25 4.46 0.00 0.00 0.75 0.18 819
Vendor 0.02 0.77 0.41 0.01 0.01 0.20 0.06 724
Hauling 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
Daily, Winter (Max)————————
Worker 0.25 0.28 3.36 0.00 0.00 0.75 0.18 749
Vendor 0.02 0.80 0.42 0.01 0.01 0.20 0.06 722
Hauling 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
Average Daily ————————
Worker 0.07 0.09 1.03 0.00 0.00 0.22 0.05 222
Vendor 0.01 0.23 0.12 < 0.005 < 0.005 0.06 0.02 211
Hauling 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
Annual ————————
Worker 0.01 0.02 0.19 0.00 0.00 0.04 0.01 36.7
Vendor < 0.005 0.04 0.02 < 0.005 < 0.005 0.01 < 0.005 34.9
Hauling 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
3.9. Building Construction (2026) - Unmitigated
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual)
Location ROG NOx CO SO2 PM10E PM10T PM2.5T CO2e
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Onsite ————————
Daily, Summer
(Max)
————————
Off-Road
Equipment
1.16 10.7 14.1 0.03 0.41 0.41 0.38 2,639
Onsite truck 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
Daily, Winter (Max)————————
Off-Road
Equipment
1.16 10.7 14.1 0.03 0.41 0.41 0.38 2,639
Onsite truck 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
Average Daily ————————
Off-Road
Equipment
0.39 3.61 4.76 0.01 0.14 0.14 0.13 893
Onsite truck 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
Annual ————————
Off-Road
Equipment
0.07 0.66 0.87 < 0.005 0.03 0.03 0.02 148
Onsite truck 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
Offsite ————————
Daily, Summer
(Max)
————————
Worker 0.25 0.23 4.12 0.00 0.00 0.75 0.18 802
Vendor 0.01 0.73 0.40 0.01 0.01 0.20 0.06 712
Hauling 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
Daily, Winter (Max)————————
Worker 0.23 0.25 3.11 0.00 0.00 0.75 0.18 734
Vendor 0.01 0.76 0.40 0.01 0.01 0.20 0.06 711
Hauling 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
Average Daily ————————
Worker 0.08 0.09 1.11 0.00 0.00 0.25 0.06 252
Vendor < 0.005 0.26 0.14 < 0.005 < 0.005 0.07 0.02 241
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Hauling 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
Annual ————————
Worker 0.01 0.02 0.20 0.00 0.00 0.05 0.01 41.8
Vendor < 0.005 0.05 0.02 < 0.005 < 0.005 0.01 < 0.005 39.9
Hauling 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
3.11. Paving (2026) - Unmitigated
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual)
Location ROG NOx CO SO2 PM10E PM10T PM2.5T CO2e
Onsite ————————
Daily, Summer
(Max)
————————
Off-Road
Equipment
0.76 7.12 9.94 0.01 0.32 0.32 0.29 1,516
Paving 0.40 ———————
Onsite truck 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
Daily, Winter (Max)————————
Average Daily ————————
Off-Road
Equipment
0.04 0.39 0.54 < 0.005 0.02 0.02 0.02 83.1
Paving 0.02 ———————
Onsite truck 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
Annual ————————
Off-Road
Equipment
0.01 0.07 0.10 < 0.005 < 0.005 < 0.005 < 0.005 13.8
Paving < 0.005 ———————
Onsite truck 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
Offsite ————————
Daily, Summer
(Max)
————————
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Worker 0.06 0.06 1.08 0.00 0.00 0.20 0.05 210
Vendor 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
Hauling 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
Daily, Winter (Max)————————
Average Daily ————————
Worker < 0.005 < 0.005 0.05 0.00 0.00 0.01 < 0.005 10.7
Vendor 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
Hauling 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
Annual ————————
Worker < 0.005 < 0.005 0.01 0.00 0.00 < 0.005 < 0.005 1.77
Vendor 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
Hauling 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
3.13. Architectural Coating (2026) - Unmitigated
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual)
Location ROG NOx CO SO2 PM10E PM10T PM2.5T CO2e
Onsite ————————
Daily, Summer
(Max)
————————
Off-Road
Equipment
0.16 1.14 1.51 < 0.005 0.03 0.03 0.03 179
Architectural
Coatings
66.2 ———————
Onsite truck 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
Daily, Winter (Max)————————
Average Daily ————————
Off-Road
Equipment
0.01 0.06 0.08 < 0.005 < 0.005 < 0.005 < 0.005 9.79
Architectural
Coatings
3.62 ———————
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Onsite truck 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
Annual ————————
Off-Road
Equipment
< 0.005 0.01 0.02 < 0.005 < 0.005 < 0.005 < 0.005 1.62
Architectural
Coatings
0.66 ———————
Onsite truck 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
Offsite ————————
Daily, Summer
(Max)
————————
Worker 0.05 0.05 0.82 0.00 0.00 0.15 0.04 160
Vendor 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
Hauling 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
Daily, Winter (Max)————————
Average Daily ————————
Worker < 0.005 < 0.005 0.04 0.00 0.00 0.01 < 0.005 8.16
Vendor 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
Hauling 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
Annual ————————
Worker < 0.005 < 0.005 0.01 0.00 0.00 < 0.005 < 0.005 1.35
Vendor 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
Hauling 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
4. Operations Emissions Details
4.1. Mobile Emissions by Land Use
4.1.1. Unmitigated
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual)
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Land Use ROG NOx CO SO2 PM10E PM10T PM2.5T CO2e
Daily, Summer
(Max)
————————
Unrefrigerated
Warehouse-No Rail
0.50 0.47 4.56 0.01 0.01 1.00 0.26 1,188
Parking Lot 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
Other Asphalt
Surfaces
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
Other Non-Asphalt
Surfaces
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
Total 0.50 0.47 4.56 0.01 0.01 1.00 0.26 1,188
Daily, Winter (Max)————————
Unrefrigerated
Warehouse-No Rail
0.47 0.51 3.80 0.01 0.01 1.00 0.26 1,111
Parking Lot 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
Other Asphalt
Surfaces
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
Other Non-Asphalt
Surfaces
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
Total 0.47 0.51 3.80 0.01 0.01 1.00 0.26 1,111
Annual ————————
Unrefrigerated
Warehouse-No Rail
0.08 0.09 0.67 < 0.005 < 0.005 0.17 0.04 173
Parking Lot 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
Other Asphalt
Surfaces
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
Other Non-Asphalt
Surfaces
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
Total 0.08 0.09 0.67 < 0.005 < 0.005 0.17 0.04 173
4.2. Energy
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4.2.1. Electricity Emissions By Land Use - Unmitigated
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual)
Land Use ROG NOx CO SO2 PM10E PM10T PM2.5T CO2e
Daily, Summer
(Max)
————————
Unrefrigerated
Warehouse-No Rail
———————601
Parking Lot ———————2.95
Other Asphalt
Surfaces
———————0.00
Other Non-Asphalt
Surfaces
———————0.00
Total ———————604
Daily, Winter (Max)————————
Unrefrigerated
Warehouse-No Rail
———————601
Parking Lot ———————2.95
Other Asphalt
Surfaces
———————0.00
Other Non-Asphalt
Surfaces
———————0.00
Total ———————604
Annual ————————
Unrefrigerated
Warehouse-No Rail
———————99.5
Parking Lot ———————0.49
Other Asphalt
Surfaces
———————0.00
Other Non-Asphalt
Surfaces
———————0.00
Total ———————100.0
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4.2.3. Natural Gas Emissions By Land Use - Unmitigated
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual)
Land Use ROG NOx CO SO2 PM10E PM10T PM2.5T CO2e
Daily, Summer
(Max)
————————
Unrefrigerated
Warehouse-No Rail
0.04 0.70 0.58 < 0.005 0.05 0.05 0.05 833
Parking Lot 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
Other Asphalt
Surfaces
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
Other Non-Asphalt
Surfaces
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
Total 0.04 0.70 0.58 < 0.005 0.05 0.05 0.05 833
Daily, Winter (Max)————————
Unrefrigerated
Warehouse-No Rail
0.04 0.70 0.58 < 0.005 0.05 0.05 0.05 833
Parking Lot 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
Other Asphalt
Surfaces
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
Other Non-Asphalt
Surfaces
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
Total 0.04 0.70 0.58 < 0.005 0.05 0.05 0.05 833
Annual ————————
Unrefrigerated
Warehouse-No Rail
0.01 0.13 0.11 < 0.005 0.01 0.01 0.01 138
Parking Lot 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
Other Asphalt
Surfaces
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
Other Non-Asphalt
Surfaces
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
Total 0.01 0.13 0.11 < 0.005 0.01 0.01 0.01 138
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4.3. Area Emissions by Source
4.3.1. Unmitigated
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual)
Source ROG NOx CO SO2 PM10E PM10T PM2.5T CO2e
Daily, Summer
(Max)
————————
Consumer Products 2.93 ———————
Architectural
Coatings
0.36 ———————
Landscape
Equipment
0.97 0.05 5.93 < 0.005 0.01 0.01 0.01 24.5
Total 4.27 0.05 5.93 < 0.005 0.01 0.01 0.01 24.5
Daily, Winter (Max)————————
Consumer Products 2.93 ———————
Architectural
Coatings
0.36 ———————
Total 3.30 ———————
Annual ————————
Consumer Products 0.54 ———————
Architectural
Coatings
0.07 ———————
Landscape
Equipment
0.12 0.01 0.74 < 0.005 < 0.005 < 0.005 < 0.005 2.78
Total 0.72 0.01 0.74 < 0.005 < 0.005 < 0.005 < 0.005 2.78
4.4. Water Emissions by Land Use
4.4.1. Unmitigated
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual)
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Land Use ROG NOx CO SO2 PM10E PM10T PM2.5T CO2e
Daily, Summer
(Max)
————————
Unrefrigerated
Warehouse-No Rail
———————469
Parking Lot ———————0.00
Other Asphalt
Surfaces
———————0.00
Other Non-Asphalt
Surfaces
———————4.38
Total ———————473
Daily, Winter (Max)————————
Unrefrigerated
Warehouse-No Rail
———————469
Parking Lot ———————0.00
Other Asphalt
Surfaces
———————0.00
Other Non-Asphalt
Surfaces
———————4.38
Total ———————473
Annual ————————
Unrefrigerated
Warehouse-No Rail
———————77.6
Parking Lot ———————0.00
Other Asphalt
Surfaces
———————0.00
Other Non-Asphalt
Surfaces
———————0.72
Total ———————78.3
4.5. Waste Emissions by Land Use
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4.5.1. Unmitigated
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual)
Land Use ROG NOx CO SO2 PM10E PM10T PM2.5T CO2e
Daily, Summer
(Max)
————————
Unrefrigerated
Warehouse-No Rail
———————242
Parking Lot ———————0.00
Other Asphalt
Surfaces
———————0.00
Other Non-Asphalt
Surfaces
———————0.00
Total ———————242
Daily, Winter (Max)————————
Unrefrigerated
Warehouse-No Rail
———————242
Parking Lot ———————0.00
Other Asphalt
Surfaces
———————0.00
Other Non-Asphalt
Surfaces
———————0.00
Total ———————242
Annual ————————
Unrefrigerated
Warehouse-No Rail
———————40.0
Parking Lot ———————0.00
Other Asphalt
Surfaces
———————0.00
Other Non-Asphalt
Surfaces
———————0.00
Total ———————40.0
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4.6. Refrigerant Emissions by Land Use
4.6.1. Unmitigated
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual)
Land Use ROG NOx CO SO2 PM10E PM10T PM2.5T CO2e
Daily, Summer
(Max)
————————
Total ————————
Daily, Winter (Max)————————
Total ————————
Annual ————————
Total ————————
4.7. Offroad Emissions By Equipment Type
4.7.1. Unmitigated
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual)
Equipment Type ROG NOx CO SO2 PM10E PM10T PM2.5T CO2e
Daily, Summer
(Max)
————————
Total ————————
Daily, Winter (Max)————————
Total ————————
Annual ————————
Total ————————
4.8. Stationary Emissions By Equipment Type
4.8.1. Unmitigated
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Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual)
Equipment Type ROG NOx CO SO2 PM10E PM10T PM2.5T CO2e
Daily, Summer
(Max)
————————
Total ————————
Daily, Winter (Max)————————
Total ————————
Annual ————————
Total ————————
4.9. User Defined Emissions By Equipment Type
4.9.1. Unmitigated
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual)
Equipment Type ROG NOx CO SO2 PM10E PM10T PM2.5T CO2e
Daily, Summer
(Max)
————————
Total ————————
Daily, Winter (Max)————————
Total ————————
Annual ————————
Total ————————
4.10. Soil Carbon Accumulation By Vegetation Type
4.10.1. Soil Carbon Accumulation By Vegetation Type - Unmitigated
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual)
Vegetation ROG NOx CO SO2 PM10E PM10T PM2.5T CO2e
Daily, Summer
(Max)
————————
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Total ————————
Daily, Winter (Max)————————
Total ————————
Annual ————————
Total ————————
4.10.2. Above and Belowground Carbon Accumulation by Land Use Type - Unmitigated
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual)
Land Use ROG NOx CO SO2 PM10E PM10T PM2.5T CO2e
Daily, Summer
(Max)
————————
Total ————————
Daily, Winter (Max)————————
Total ————————
Annual ————————
Total ————————
4.10.3. Avoided and Sequestered Emissions by Species - Unmitigated
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual)
Species ROG NOx CO SO2 PM10E PM10T PM2.5T CO2e
Daily, Summer
(Max)
————————
Avoided ————————
Subtotal ————————
Sequestered ————————
Subtotal ————————
Removed ————————
Subtotal ————————
—————————
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Daily, Winter (Max)————————
Avoided ————————
Subtotal ————————
Sequestered ————————
Subtotal ————————
Removed ————————
Subtotal ————————
—————————
Annual ————————
Avoided ————————
Subtotal ————————
Sequestered ————————
Subtotal ————————
Removed ————————
Subtotal ————————
—————————
5. Activity Data
5.1. Construction Schedule
Phase Name Phase Type Start Date End Date Days Per Week Work Days per Phase Phase Description
Demolition Demolition 4/29/2025 7/7/2025 5.00 50.0 —
Site Preparation Site Preparation 4/1/2025 4/28/2025 5.00 20.0 —
Grading Grading 7/8/2025 8/4/2025 5.00 20.0 —
Building Construction Building Construction 8/5/2025 6/22/2026 5.00 230 —
Paving Paving 6/23/2026 7/20/2026 5.00 20.0 —
Architectural Coating Architectural Coating 7/21/2026 8/17/2026 5.00 20.0 —
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5.2. Off-Road Equipment
5.2.1. Unmitigated
Phase Name Equipment Type Fuel Type Engine Tier Number per Day Hours Per Day Horsepower Load Factor
Demolition Crushing/Proc.
Equipment
Diesel Average 1.00 8.00 200 0.60
Site Preparation Rubber Tired Dozers Diesel Average 3.00 8.00 367 0.40
Site Preparation Tractors/Loaders/Back
hoes
Diesel Average 0.00 8.00 84.0 0.37
Site Preparation Crawler Tractors Diesel Average 4.00 8.00 87.0 0.43
Grading Excavators Diesel Average 1.00 8.00 36.0 0.38
Grading Graders Diesel Average 1.00 8.00 148 0.41
Grading Rubber Tired Dozers Diesel Average 1.00 8.00 367 0.40
Grading Tractors/Loaders/Back
hoes
Diesel Average 0.00 8.00 84.0 0.37
Grading Crawler Tractors Diesel Average 3.00 8.00 87.0 0.43
Building Construction Cranes Diesel Average 1.00 8.00 367 0.29
Building Construction Forklifts Diesel Average 3.00 8.00 82.0 0.20
Building Construction Generator Sets Diesel Average 1.00 8.00 14.0 0.74
Building Construction Tractors/Loaders/Back
hoes
Diesel Average 3.00 8.00 84.0 0.37
Building Construction Welders Diesel Average 1.00 8.00 46.0 0.45
Paving Pavers Diesel Average 2.00 8.00 81.0 0.42
Paving Paving Equipment Diesel Average 2.00 8.00 89.0 0.36
Paving Rollers Diesel Average 2.00 8.00 36.0 0.38
Architectural Coating Air Compressors Diesel Average 1.00 8.00 37.0 0.48
5.3. Construction Vehicles
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5.3.1. Unmitigated
Phase Name Trip Type One-Way Trips per Day Miles per Trip Vehicle Mix
Site Preparation ————
Site Preparation Worker 17.5 18.5 LDA,LDT1,LDT2
Site Preparation Vendor —10.2 HHDT,MHDT
Site Preparation Hauling 0.00 20.0 HHDT
Site Preparation Onsite truck ——HHDT
Grading ————
Grading Worker 15.0 18.5 LDA,LDT1,LDT2
Grading Vendor —10.2 HHDT,MHDT
Grading Hauling 22.8 20.0 HHDT
Grading Onsite truck ——HHDT
Building Construction ————
Building Construction Worker 57.3 18.5 LDA,LDT1,LDT2
Building Construction Vendor 22.3 10.2 HHDT,MHDT
Building Construction Hauling 0.00 20.0 HHDT
Building Construction Onsite truck ——HHDT
Paving ————
Paving Worker 15.0 18.5 LDA,LDT1,LDT2
Paving Vendor —10.2 HHDT,MHDT
Paving Hauling 0.00 20.0 HHDT
Paving Onsite truck ——HHDT
Architectural Coating ————
Architectural Coating Worker 11.5 18.5 LDA,LDT1,LDT2
Architectural Coating Vendor —10.2 HHDT,MHDT
Architectural Coating Hauling 0.00 20.0 HHDT
Architectural Coating Onsite truck ——HHDT
Demolition ————
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Demolition Worker 2.50 18.5 LDA,LDT1,LDT2
Demolition Vendor —10.2 HHDT,MHDT
Demolition Hauling 0.00 20.0 HHDT
Demolition Onsite truck ——HHDT
5.4. Vehicles
5.4.1. Construction Vehicle Control Strategies
Non-applicable. No control strategies activated by user.
5.5. Architectural Coatings
Phase Name Residential Interior Area
Coated (sq ft)
Residential Exterior Area
Coated (sq ft)
Non-Residential Interior Area
Coated (sq ft)
Non-Residential Exterior Area
Coated (sq ft)
Parking Area Coated (sq ft)
Architectural Coating 0.00 0.00 204,528 68,176 12,652
5.6. Dust Mitigation
5.6.1. Construction Earthmoving Activities
Phase Name Material Imported (cy)Material Exported (cy)Acres Graded (acres)Material Demolished (sq. ft.)Acres Paved (acres)
Demolition 0.00 0.00 0.00 ——
Site Preparation ——70.0 0.00 —
Grading —3,633 50.0 0.00 —
Paving 0.00 0.00 0.00 0.00 4.84
5.6.2. Construction Earthmoving Control Strategies
Control Strategies Applied Frequency (per day)PM10 Reduction PM2.5 Reduction
Water Exposed Area 3 74%74%
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5.7. Construction Paving
Land Use Area Paved (acres)% Asphalt
Unrefrigerated Warehouse-No Rail 0.00 0%
Parking Lot 0.08 100%
Other Asphalt Surfaces 2.95 100%
Other Non-Asphalt Surfaces 1.81 0%
5.8. Construction Electricity Consumption and Emissions Factors
kWh per Year and Emission Factor (lb/MWh)
Year kWh per Year CO2 CH4 N2O
2025 0.00 349 0.03 < 0.005
2026 0.00 346 0.03 < 0.005
5.9. Operational Mobile Sources
5.9.1. Unmitigated
Land Use Type Trips/Weekday Trips/Saturday Trips/Sunday Trips/Year VMT/Weekday VMT/Saturday VMT/Sunday VMT/Year
Unrefrigerated
Warehouse-No Rail
128 116 75.0 43,370 1,397 1,263 817 472,769
Parking Lot 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
Other Asphalt
Surfaces
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
Other Non-Asphalt
Surfaces
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
5.10. Operational Area Sources
5.10.1. Hearths
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5.10.1.1. Unmitigated
5.10.2. Architectural Coatings
Residential Interior Area Coated (sq
ft)
Residential Exterior Area Coated (sq
ft)
Non-Residential Interior Area Coated
(sq ft)
Non-Residential Exterior Area
Coated (sq ft)
Parking Area Coated (sq ft)
0 0.00 204,528 68,176 12,652
5.10.3. Landscape Equipment
Season Unit Value
Snow Days day/yr 0.00
Summer Days day/yr 250
5.11. Operational Energy Consumption
5.11.1. Unmitigated
Electricity (kWh/yr) and CO2 and CH4 and N2O and Natural Gas (kBTU/yr)
Land Use Electricity (kWh/yr)CO2 CH4 N2O Natural Gas (kBTU/yr)
Unrefrigerated Warehouse-No
Rail
629,769 346 0.0330 0.0040 2,592,144
Parking Lot 3,091 346 0.0330 0.0040 0.00
Other Asphalt Surfaces 0.00 346 0.0330 0.0040 0.00
Other Non-Asphalt Surfaces 0.00 346 0.0330 0.0040 0.00
5.12. Operational Water and Wastewater Consumption
5.12.1. Unmitigated
Land Use Indoor Water (gal/year)Outdoor Water (gal/year)
Unrefrigerated Warehouse-No Rail 31,531,400 934,416
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Parking Lot 0.00 0.00
Other Asphalt Surfaces 0.00 0.00
Other Non-Asphalt Surfaces 0.00 864,190
5.13. Operational Waste Generation
5.13.1. Unmitigated
Land Use Waste (ton/year)Cogeneration (kWh/year)
Unrefrigerated Warehouse-No Rail 128 —
Parking Lot 0.00 —
Other Asphalt Surfaces 0.00 —
Other Non-Asphalt Surfaces 0.00 —
5.14. Operational Refrigeration and Air Conditioning Equipment
5.14.1. Unmitigated
Land Use Type Equipment Type Refrigerant GWP Quantity (kg)Operations Leak Rate Service Leak Rate Times Serviced
5.15. Operational Off-Road Equipment
5.15.1. Unmitigated
Equipment Type Fuel Type Engine Tier Number per Day Hours Per Day Horsepower Load Factor
5.16. Stationary Sources
5.16.1. Emergency Generators and Fire Pumps
Equipment Type Fuel Type Number per Day Hours per Day Hours per Year Horsepower Load Factor
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5.16.2. Process Boilers
Equipment Type Fuel Type Number Boiler Rating (MMBtu/hr)Daily Heat Input (MMBtu/day)Annual Heat Input (MMBtu/yr)
5.17. User Defined
Equipment Type Fuel Type
5.18. Vegetation
5.18.1. Land Use Change
5.18.1.1. Unmitigated
Vegetation Land Use Type Vegetation Soil Type Initial Acres Final Acres
5.18.1. Biomass Cover Type
5.18.1.1. Unmitigated
Biomass Cover Type Initial Acres Final Acres
5.18.2. Sequestration
5.18.2.1. Unmitigated
Tree Type Number Electricity Saved (kWh/year)Natural Gas Saved (btu/year)
6. Climate Risk Detailed Report
6.1. Climate Risk Summary
Cal-Adapt midcentury 2040–2059 average projections for four hazards are reported below for your project location. These are under Representation Concentration Pathway (RCP) 8.5 which
assumes GHG emissions will continue to rise strongly through 2050 and then plateau around 2100.
Conifer-RockCrushing-Exp-v2 Detailed Report, 2/28/2025
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Climate Hazard Result for Project Location Unit
Temperature and Extreme Heat 24.4 annual days of extreme heat
Extreme Precipitation 3.50 annual days with precipitation above 20 mm
Sea Level Rise —meters of inundation depth
Wildfire 6.13 annual hectares burned
Temperature and Extreme Heat data are for grid cell in which your project are located. The projection is based on the 98th historical percentile of daily maximum/minimum temperatures from
observed historical data (32 climate model ensemble from Cal-Adapt, 2040–2059 average under RCP 8.5). Each grid cell is 6 kilometers (km) by 6 km, or 3.7 miles (mi) by 3.7 mi.
Extreme Precipitation data are for the grid cell in which your project are located. The threshold of 20 mm is equivalent to about ¾ an inch of rain, which would be light to moderate rainfall if
received over a full day or heavy rain if received over a period of 2 to 4 hours. Each grid cell is 6 kilometers (km) by 6 km, or 3.7 miles (mi) by 3.7 mi.
Sea Level Rise data are for the grid cell in which your project are located. The projections are from Radke et al. (2017), as reported in Cal-Adapt (Radke et al., 2017, CEC-500-2017-008), and
consider inundation location and depth for the San Francisco Bay, the Sacramento-San Joaquin River Delta and California coast resulting different increments of sea level rise coupled with
extreme storm events. Users may select from four scenarios to view the range in potential inundation depth for the grid cell. The four scenarios are: No rise, 0.5 meter, 1.0 meter, 1.41 meters
Wildfire data are for the grid cell in which your project are located. The projections are from UC Davis, as reported in Cal-Adapt (2040–2059 average under RCP 8.5), and consider historical data
of climate, vegetation, population density, and large (> 400 ha) fire history. Users may select from four model simulations to view the range in potential wildfire probabilities for the grid cell. The
four simulations make different assumptions about expected rainfall and temperature are: Warmer/drier (HadGEM2-ES), Cooler/wetter (CNRM-CM5), Average conditions (CanESM2), Range of
different rainfall and temperature possibilities (MIROC5). Each grid cell is 6 kilometers (km) by 6 km, or 3.7 miles (mi) by 3.7 mi.
6.2. Initial Climate Risk Scores
Climate Hazard Exposure Score Sensitivity Score Adaptive Capacity Score Vulnerability Score
Temperature and Extreme Heat 3 0 0 N/A
Extreme Precipitation N/A N/A N/A N/A
Sea Level Rise 1 0 0 N/A
Wildfire 1 0 0 N/A
Flooding N/A N/A N/A N/A
Drought N/A N/A N/A N/A
Snowpack Reduction N/A N/A N/A N/A
Air Quality Degradation 0 0 0 N/A
The sensitivity score reflects the extent to which a project would be adversely affected by exposure to a climate hazard. Exposure is rated on a scale of 1 to 5, with a score of 5 representing the
greatest exposure.
The adaptive capacity of a project refers to its ability to manage and reduce vulnerabilities from projected climate hazards. Adaptive capacity is rated on a scale of 1 to 5, with a score of 5
representing the greatest ability to adapt.
The overall vulnerability scores are calculated based on the potential impacts and adaptive capacity assessments for each hazard. Scores do not include implementation of climate risk reduction
measures.
Conifer-RockCrushing-Exp-v2 Detailed Report, 2/28/2025
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6.3. Adjusted Climate Risk Scores
Climate Hazard Exposure Score Sensitivity Score Adaptive Capacity Score Vulnerability Score
Temperature and Extreme Heat 3 1 1 3
Extreme Precipitation N/A N/A N/A N/A
Sea Level Rise 1 1 1 2
Wildfire 1 1 1 2
Flooding N/A N/A N/A N/A
Drought N/A N/A N/A N/A
Snowpack Reduction N/A N/A N/A N/A
Air Quality Degradation 1 1 1 2
The sensitivity score reflects the extent to which a project would be adversely affected by exposure to a climate hazard. Exposure is rated on a scale of 1 to 5, with a score of 5 representing the
greatest exposure.
The adaptive capacity of a project refers to its ability to manage and reduce vulnerabilities from projected climate hazards. Adaptive capacity is rated on a scale of 1 to 5, with a score of 5
representing the greatest ability to adapt.
The overall vulnerability scores are calculated based on the potential impacts and adaptive capacity assessments for each hazard. Scores include implementation of climate risk reduction
measures.
6.4. Climate Risk Reduction Measures
7. Health and Equity Details
7.1. CalEnviroScreen 4.0 Scores
The maximum CalEnviroScreen score is 100. A high score (i.e., greater than 50) reflects a higher pollution burden compared to other census tracts in the state.
Indicator Result for Project Census Tract
Exposure Indicators —
AQ-Ozone 95.3
AQ-PM 94.0
AQ-DPM 57.9
Drinking Water 72.0
Lead Risk Housing 21.9
Conifer-RockCrushing-Exp-v2 Detailed Report, 2/28/2025
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Pesticides 0.00
Toxic Releases 82.5
Traffic 12.1
Effect Indicators —
CleanUp Sites 40.8
Groundwater 0.35
Haz Waste Facilities/Generators 27.1
Impaired Water Bodies 0.00
Solid Waste 22.1
Sensitive Population —
Asthma 54.9
Cardio-vascular 71.5
Low Birth Weights 94.9
Socioeconomic Factor Indicators —
Education 64.3
Housing 34.8
Linguistic 30.7
Poverty 47.8
Unemployment 60.6
7.2. Healthy Places Index Scores
The maximum Health Places Index score is 100. A high score (i.e., greater than 50) reflects healthier community conditions compared to other census tracts in the state.
Indicator Result for Project Census Tract
Economic —
Above Poverty 40.36956243
Employed 62.92826896
Median HI 54.94674708
Education —
Conifer-RockCrushing-Exp-v2 Detailed Report, 2/28/2025
41 / 44
Bachelor's or higher 28.6154241
High school enrollment 100
Preschool enrollment 65.63582702
Transportation —
Auto Access 72.44963429
Active commuting 33.78673168
Social —
2-parent households 36.59694598
Voting 36.73809829
Neighborhood —
Alcohol availability 64.37828821
Park access 81.35506224
Retail density 78.51918388
Supermarket access 45.60503016
Tree canopy 4.991659181
Housing —
Homeownership 61.36276145
Housing habitability 51.12280252
Low-inc homeowner severe housing cost burden 57.80828949
Low-inc renter severe housing cost burden 55.52418837
Uncrowded housing 19.45335558
Health Outcomes —
Insured adults 39.07352752
Arthritis 82.7
Asthma ER Admissions 46.8
High Blood Pressure 79.0
Cancer (excluding skin)89.7
Asthma 32.2
Conifer-RockCrushing-Exp-v2 Detailed Report, 2/28/2025
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Coronary Heart Disease 85.5
Chronic Obstructive Pulmonary Disease 68.2
Diagnosed Diabetes 50.0
Life Expectancy at Birth 59.5
Cognitively Disabled 74.6
Physically Disabled 69.8
Heart Attack ER Admissions 16.0
Mental Health Not Good 32.6
Chronic Kidney Disease 73.0
Obesity 26.8
Pedestrian Injuries 42.8
Physical Health Not Good 40.7
Stroke 75.8
Health Risk Behaviors —
Binge Drinking 30.9
Current Smoker 36.3
No Leisure Time for Physical Activity 40.8
Climate Change Exposures —
Wildfire Risk 25.0
SLR Inundation Area 0.0
Children 37.8
Elderly 95.7
English Speaking 63.9
Foreign-born 62.1
Outdoor Workers 27.5
Climate Change Adaptive Capacity —
Impervious Surface Cover 56.4
Traffic Density 4.9
Conifer-RockCrushing-Exp-v2 Detailed Report, 2/28/2025
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Traffic Access 23.0
Other Indices —
Hardship 65.9
Other Decision Support —
2016 Voting 39.9
7.3. Overall Health & Equity Scores
Metric Result for Project Census Tract
CalEnviroScreen 4.0 Score for Project Location (a)63.0
Healthy Places Index Score for Project Location (b)47.0
Project Located in a Designated Disadvantaged Community (Senate Bill 535)Yes
Project Located in a Low-Income Community (Assembly Bill 1550)No
Project Located in a Community Air Protection Program Community (Assembly Bill 617)No
a: The maximum CalEnviroScreen score is 100. A high score (i.e., greater than 50) reflects a higher pollution burden compared to other census tracts in the state.
b: The maximum Health Places Index score is 100. A high score (i.e., greater than 50) reflects healthier community conditions compared to other census tracts in the state.
7.4. Health & Equity Measures
No Health & Equity Measures selected.
7.5. Evaluation Scorecard
Health & Equity Evaluation Scorecard not completed.
7.6. Health & Equity Custom Measures
No Health & Equity Custom Measures created.
8. User Changes to Default Data
Screen Justification
Construction: Construction Phases Site is vacant. However, adjusted demolition phase to follow site preparation and grading to
account for rock blasting/crushing activities.
Conifer-RockCrushing-Exp-v2 Detailed Report, 2/28/2025
44 / 44
Construction: Off-Road Equipment Assumed all construction will be utilized 8 hours per work day. Replaced
Tractors/Loaders/Backhoes with Crawler Tractors in the Site Preparation and Grading Phases.
Adding Crushing/Proc. equipment to demolition phase to account for rock crushing.
Operations: Vehicle Data Adjusted rates for Weekday Trips, Saturday Trips, and Sunday Trips to match ITE 11th Edition
Trip Rates for Mini Warehousing (ITE Land Use Code 151).
Land Use Adjusted according to site plan. Assumed a total graded construction acreage of 9.3, as
provided by Project Applicant.
Construction: Dust From Material Movement Adjusted soil export to match grading numbers provided by client.
Construction: Off-Road Equipment EF Input emissions factors for crushing/proc. equipment using EMFAC OFFROAD2021, San
Bernardino sub-area, calendar year 2025
Health Risk Assessment
Conifer Self Storage Project
APPENDIX B – AERMOD CONSTRUCTION MODEL OUTPUT
Sensitive Receptor Summary
C:\Lakes\AERMOD View\24_066_Conifer\24_066_Conifer.isc
PM10 - Concentration - Source Group: ALL
Averaging
Period Rank Peak X
(m)
Y
(m)
ZELEV
(m)
ZHILL
(m)
Peak Date,
Start HourZFLAG
(m)Units
Receptor
ID
1-HR 1ST 1.81652 10/11/2011, 7
455551.70 3767134.45 285.13 0.00 675.00
ug/m^3 1
1-HR 1ST 2.61803 12/28/2012, 7
455642.71 3767150.22 287.77 0.00 675.00
ug/m^3 1
1-HR 1ST 2.69995 4/6/2011, 7
455743.95 3767193.56 285.00 0.00 675.00
ug/m^3 1
1-HR 1ST 2.75728 4/6/2011, 7
455754.72 3767184.12 285.00 0.00 675.00
ug/m^3 1
1-HR 1ST 2.69038 4/6/2011, 7
455778.52 3767170.14 285.00 0.00 675.00
ug/m^3 1
1-HR 1ST 2.40798 4/6/2011, 7
455675.50 3767181.06 291.27 0.00 675.00
ug/m^3 1
1-HR 1ST 1.52813 10/11/2011, 7
455550.19 3767158.79 284.69 0.00 675.00
ug/m^3 1
1-HR 1ST 1.16021 12/28/2012, 7
455584.76 3767233.03 285.84 0.00 675.00
ug/m^3 1
1-HR 1ST 1.04432 12/22/2015, 7
455543.57 3767224.72 284.14 0.00 675.00
ug/m^3 1
1-HR 1ST 1.33175 10/11/2011, 7
455507.92 3767158.16 283.28 0.00 675.00
ug/m^3 1
1-HR 1ST 1.11671 12/22/2015, 7
455533.60 3767202.06 284.14 0.00 675.00
ug/m^3 1
1-HR 1ST 0.90019 12/28/2012, 7
455555.95 3767273.80 284.88 0.00 675.00
ug/m^3 1
1-HR 1ST 1.11956 4/6/2011, 7
455678.85 3767300.67 285.86 0.00 675.00
ug/m^3 1
1-HR 1ST 0.62667 4/6/2011, 7
455662.40 3767417.44 286.59 0.00 675.00
ug/m^3 1
1-HR 1ST 0.60139 12/23/2016, 7
455613.11 3767410.89 286.00 0.00 675.00
ug/m^3 1
1-HR 1ST 0.42171 1/6/2016, 7
455638.27 3767537.98 288.05 0.00 663.00
ug/m^3 1
1-HR 1ST 0.39273 12/23/2016, 7
455584.91 3767560.73 288.69 0.00 538.00
ug/m^3 1
1-HR 1ST 0.36255 12/23/2016, 7
455517.94 3767560.73 288.00 0.00 538.00
ug/m^3 1
1-HR 1ST 0.46053 12/28/2012, 7
455489.82 3767465.50 286.43 0.00 538.00
ug/m^3 1
1-HR 1ST 0.54761 12/28/2012, 7
455513.37 3767409.78 285.88 0.00 538.00
ug/m^3 1
AERMOD View by Lakes Environmental Software 2/27/2025
Project File: C:\Lakes\AERMOD View\24_066_Conifer\24_066_Conifer.isc
RS - 1 of 6
Sensitive Receptor Summary
C:\Lakes\AERMOD View\24_066_Conifer\24_066_Conifer.isc
PM10 - Concentration - Source Group: ALL
Averaging
Period Rank Peak X
(m)
Y
(m)
ZELEV
(m)
ZHILL
(m)
Peak Date,
Start HourZFLAG
(m)Units
Receptor
ID
1-HR 1ST 0.34074 12/28/2012, 7
455404.07 3767563.05 287.91 0.00 538.00
ug/m^3 1
1-HR 1ST 0.25927 12/22/2015, 7
455187.84 3767566.61 287.00 0.00 538.00
ug/m^3 1
1-HR 1ST 0.20488 2/19/2015, 7454960.72 3767568.11 286.06 0.00 538.00ug/m^3 1
1-HR 1ST 0.21853 2/19/2015, 7454988.90 3767530.87 285.82 0.00 538.00ug/m^3 1
1-HR 1ST 0.17869 10/11/2011, 7454803.70 3767560.48 284.80 0.00 538.00ug/m^3 1
1-HR 1ST 0.17255 10/11/2011, 7454658.19 3767570.69 284.00 0.00 538.00ug/m^3 1
1-HR 1ST 0.15664 10/11/2011, 7454438.23 3767570.70 283.00 0.00 283.00ug/m^3 1
1-HR 1ST 0.35912 10/11/2011, 7
455021.76 3767304.81 282.00 0.00 538.00
ug/m^3 1
1-HR 1ST 0.10685 10/11/2011, 7
453951.22 3767571.90 279.50 0.00 279.50
ug/m^3 1
1-HR 1ST 0.08779 10/11/2011, 7
453733.05 3767573.77 278.93 0.00 278.93
ug/m^3 1
1-HR 1ST 0.06696 1/20/2016, 8
453419.10 3767557.69 280.56 0.00 280.56
ug/m^3 1
1-HR 1ST 0.06530 2/7/2013, 8
453274.80 3766991.38 273.81 0.00 273.81
ug/m^3 1
1-HR 1ST 0.06476 10/5/2012, 7
453237.27 3766726.71 268.66 0.00 268.66
ug/m^3 1
1-HR 1ST 0.08190 10/5/2012, 7
453243.51 3766308.57 261.83 0.00 261.83
ug/m^3 1
1-HR 1ST 0.07685 10/4/2016, 7
453243.99 3766121.08 258.98 0.00 355.00
ug/m^3 1
1-HR 1ST 0.07441 10/4/2016, 7
453177.04 3765824.21 254.90 0.00 355.00
ug/m^3 1
1-HR 1ST 0.07061 10/4/2016, 7
453336.97 3765791.69 255.04 0.00 437.00
ug/m^3 1
1-HR 1ST 0.04564 12/24/2015, 8
453166.07 3765094.03 248.81 0.00 355.00
ug/m^3 1
1-HR 1ST 0.04420 12/24/2015, 8
453234.59 3765207.45 250.95 0.00 437.00
ug/m^3 1
1-HR 1ST 0.04394 12/24/2015, 8
453041.81 3764754.20 245.20 0.00 351.74
ug/m^3 1
1-HR 1ST 0.05402 3/30/2015, 7
453651.93 3764446.64 241.89 0.00 538.00
ug/m^3 1
AERMOD View by Lakes Environmental Software 2/27/2025
Project File: C:\Lakes\AERMOD View\24_066_Conifer\24_066_Conifer.isc
RS - 2 of 6
Sensitive Receptor Summary
C:\Lakes\AERMOD View\24_066_Conifer\24_066_Conifer.isc
PM10 - Concentration - Source Group: ALL
Averaging
Period Rank Peak X
(m)
Y
(m)
ZELEV
(m)
ZHILL
(m)
Peak Date,
Start HourZFLAG
(m)Units
Receptor
ID
1-HR 1ST 0.12645 2/19/2015, 7
454621.04 3767796.17 286.00 0.00 286.00
ug/m^3 sch
1-HR 1ST 1.09516 10/5/2012, 7
455377.64 3766948.47 279.96 0.00 675.00
ug/m^3 sch
1-HR 1ST 1.18788 10/11/2011, 7455454.47 3767131.75 282.00 0.00 675.00ug/m^3 wrk
1-HR 1ST 0.91376 10/4/2016, 7455335.17 3766863.51 279.00 0.00 675.00ug/m^3 wrk
1-HR 1ST 0.32287 1/6/2016, 7455627.03 3767649.89 290.00 0.00 538.00ug/m^3 wrk
1-HR 1ST 0.05809 1/20/2016, 8453166.91 3767527.15 278.65 0.00 278.65ug/m^3 wrk
1-HR 1ST 0.06186 2/7/2013, 8453129.05 3767041.63 272.94 0.00 272.94ug/m^3 wrk
1-HR 1ST 0.55115 4/6/2011, 7
455765.89 3767621.41 290.73 0.00 675.00
ug/m^3 wrk
1-HR 1ST 0.35191 10/5/2012, 7
454889.90 3766881.66 276.18 0.00 538.00
ug/m^3 sch
1-HR 1ST 0.15602 1/20/2016, 8
454528.58 3767222.55 278.54 0.00 538.00
ug/m^3 sch
1-HR 1ST 0.08735 2/7/2013, 8
453868.08 3767231.75 274.85 0.00 274.85
ug/m^3 sch
1-HR 1ST 0.07922 2/7/2013, 8
453784.56 3767272.35 274.20 0.00 274.20
ug/m^3 sch
1-HR 1ST 0.14516 10/4/2016, 7
454287.03 3766282.44 266.20 0.00 538.00
ug/m^3 sch
1-HR 1ST 0.17976 3/27/2013, 7
456947.27 3766887.84 299.00 0.00 675.00
ug/m^3 sch
1-HR 1ST 0.05967 12/21/2012, 8
454761.35 3764683.03 239.93 0.00 538.00
ug/m^3 sch
1-HR 1ST 0.05476 3/30/2015, 7
453698.15 3764137.68 237.99 0.00 437.00
ug/m^3 sch
1-HR 1ST 0.11228 10/19/2011, 7
457692.29 3767110.81 302.26 0.00 675.00
ug/m^3 sch
1-HR 1ST 0.07587 10/4/2016, 7
453175.03 3766104.36 259.00 0.00 259.00
ug/m^3 wrk
PERIOD 0.00730
455551.70 3767134.45 285.13 0.00 675.00
ug/m^3 1
PERIOD 0.02905
455642.71 3767150.22 287.77 0.00 675.00
ug/m^3 1
PERIOD 0.03328
455743.95 3767193.56 285.00 0.00 675.00
ug/m^3 1
AERMOD View by Lakes Environmental Software 2/27/2025
Project File: C:\Lakes\AERMOD View\24_066_Conifer\24_066_Conifer.isc
RS - 3 of 6
Sensitive Receptor Summary
C:\Lakes\AERMOD View\24_066_Conifer\24_066_Conifer.isc
PM10 - Concentration - Source Group: ALL
Averaging
Period Rank Peak X
(m)
Y
(m)
ZELEV
(m)
ZHILL
(m)
Peak Date,
Start HourZFLAG
(m)Units
Receptor
ID
PERIOD 0.03963
455754.72 3767184.12 285.00 0.00 675.00
ug/m^3 1
PERIOD 0.04670
455778.52 3767170.14 285.00 0.00 675.00
ug/m^3 1
PERIOD 0.02263 455675.50 3767181.06 291.27 0.00 675.00ug/m^3 1
PERIOD 0.00581 455550.19 3767158.79 284.69 0.00 675.00ug/m^3 1
PERIOD 0.00435 455584.76 3767233.03 285.84 0.00 675.00ug/m^3 1
PERIOD 0.00330 455543.57 3767224.72 284.14 0.00 675.00ug/m^3 1
PERIOD 0.00388 455507.92 3767158.16 283.28 0.00 675.00ug/m^3 1
PERIOD 0.00356
455533.60 3767202.06 284.14 0.00 675.00
ug/m^3 1
PERIOD 0.00261
455555.95 3767273.80 284.88 0.00 675.00
ug/m^3 1
PERIOD 0.00481
455678.85 3767300.67 285.86 0.00 675.00
ug/m^3 1
PERIOD 0.00202
455662.40 3767417.44 286.59 0.00 675.00
ug/m^3 1
PERIOD 0.00167
455613.11 3767410.89 286.00 0.00 675.00
ug/m^3 1
PERIOD 0.00107
455638.27 3767537.98 288.05 0.00 663.00
ug/m^3 1
PERIOD 0.00085
455584.91 3767560.73 288.69 0.00 538.00
ug/m^3 1
PERIOD 0.00072
455517.94 3767560.73 288.00 0.00 538.00
ug/m^3 1
PERIOD 0.00084
455489.82 3767465.50 286.43 0.00 538.00
ug/m^3 1
PERIOD 0.00110
455513.37 3767409.78 285.88 0.00 538.00
ug/m^3 1
PERIOD 0.00055
455404.07 3767563.05 287.91 0.00 538.00
ug/m^3 1
PERIOD 0.00037
455187.84 3767566.61 287.00 0.00 538.00
ug/m^3 1
PERIOD 0.00028
454960.72 3767568.11 286.06 0.00 538.00
ug/m^3 1
PERIOD 0.00028
454988.90 3767530.87 285.82 0.00 538.00
ug/m^3 1
AERMOD View by Lakes Environmental Software 2/27/2025
Project File: C:\Lakes\AERMOD View\24_066_Conifer\24_066_Conifer.isc
RS - 4 of 6
Sensitive Receptor Summary
C:\Lakes\AERMOD View\24_066_Conifer\24_066_Conifer.isc
PM10 - Concentration - Source Group: ALL
Averaging
Period Rank Peak X
(m)
Y
(m)
ZELEV
(m)
ZHILL
(m)
Peak Date,
Start HourZFLAG
(m)Units
Receptor
ID
PERIOD 0.00024
454803.70 3767560.48 284.80 0.00 538.00
ug/m^3 1
PERIOD 0.00022
454658.19 3767570.69 284.00 0.00 538.00
ug/m^3 1
PERIOD 0.00019 454438.23 3767570.70 283.00 0.00 283.00ug/m^3 1
PERIOD 0.00041 455021.76 3767304.81 282.00 0.00 538.00ug/m^3 1
PERIOD 0.00015 453951.22 3767571.90 279.50 0.00 279.50ug/m^3 1
PERIOD 0.00014 453733.05 3767573.77 278.93 0.00 278.93ug/m^3 1
PERIOD 0.00011 453419.10 3767557.69 280.56 0.00 280.56ug/m^3 1
PERIOD 0.00013
453274.80 3766991.38 273.81 0.00 273.81
ug/m^3 1
PERIOD 0.00017
453237.27 3766726.71 268.66 0.00 268.66
ug/m^3 1
PERIOD 0.00019
453243.51 3766308.57 261.83 0.00 261.83
ug/m^3 1
PERIOD 0.00020
453243.99 3766121.08 258.98 0.00 355.00
ug/m^3 1
PERIOD 0.00022
453177.04 3765824.21 254.90 0.00 355.00
ug/m^3 1
PERIOD 0.00019
453336.97 3765791.69 255.04 0.00 437.00
ug/m^3 1
PERIOD 0.00021
453166.07 3765094.03 248.81 0.00 355.00
ug/m^3 1
PERIOD 0.00023
453234.59 3765207.45 250.95 0.00 437.00
ug/m^3 1
PERIOD 0.00017
453041.81 3764754.20 245.20 0.00 351.74
ug/m^3 1
PERIOD 0.00019
453651.93 3764446.64 241.89 0.00 538.00
ug/m^3 1
PERIOD 0.00014
454621.04 3767796.17 286.00 0.00 286.00
ug/m^3 sch
PERIOD 0.00364
455377.64 3766948.47 279.96 0.00 675.00
ug/m^3 sch
PERIOD 0.00302
455454.47 3767131.75 282.00 0.00 675.00
ug/m^3 wrk
PERIOD 0.00326
455335.17 3766863.51 279.00 0.00 675.00
ug/m^3 wrk
AERMOD View by Lakes Environmental Software 2/27/2025
Project File: C:\Lakes\AERMOD View\24_066_Conifer\24_066_Conifer.isc
RS - 5 of 6
Sensitive Receptor Summary
C:\Lakes\AERMOD View\24_066_Conifer\24_066_Conifer.isc
PM10 - Concentration - Source Group: ALL
Averaging
Period Rank Peak X
(m)
Y
(m)
ZELEV
(m)
ZHILL
(m)
Peak Date,
Start HourZFLAG
(m)Units
Receptor
ID
PERIOD 0.00070
455627.03 3767649.89 290.00 0.00 538.00
ug/m^3 wrk
PERIOD 0.00012
453166.91 3767527.15 278.65 0.00 278.65
ug/m^3 wrk
PERIOD 0.00012 453129.05 3767041.63 272.94 0.00 272.94ug/m^3 wrk
PERIOD 0.00100 455765.89 3767621.41 290.73 0.00 675.00ug/m^3 wrk
PERIOD 0.00068 454889.90 3766881.66 276.18 0.00 538.00ug/m^3 sch
PERIOD 0.00024 454528.58 3767222.55 278.54 0.00 538.00ug/m^3 sch
PERIOD 0.00014 453868.08 3767231.75 274.85 0.00 274.85ug/m^3 sch
PERIOD 0.00013
453784.56 3767272.35 274.20 0.00 274.20
ug/m^3 sch
PERIOD 0.00037
454287.03 3766282.44 266.20 0.00 538.00
ug/m^3 sch
PERIOD 0.00030
456947.27 3766887.84 299.00 0.00 675.00
ug/m^3 sch
PERIOD 0.00027
454761.35 3764683.03 239.93 0.00 538.00
ug/m^3 sch
PERIOD 0.00017
453698.15 3764137.68 237.99 0.00 437.00
ug/m^3 sch
PERIOD 0.00018
457692.29 3767110.81 302.26 0.00 675.00
ug/m^3 sch
PERIOD 0.00020
453175.03 3766104.36 259.00 0.00 259.00
ug/m^3 wrk
AERMOD View by Lakes Environmental Software 2/27/2025
Project File: C:\Lakes\AERMOD View\24_066_Conifer\24_066_Conifer.isc
RS - 6 of 6
Health Risk Assessment
Conifer Self Storage Project
APPENDIX C – ESTIMATION OF PROJECT CONSTRUCTION DPM EMISSIONS
Conifer Self Storage Project
Construction DPM Emissions CalEEMod Default Construction Vehicle Trip Length
Data Source: CalEEMod Project Output
Vehicle Distance
Work Schedule 8 hrs/day 5 days per week (miles)
Haul Truck 20
Onsite DPM Construction Emissions Blasting area Vendor Truck 10.2
Size of the Construction Area:9.3 acres 4.84 acres Worker 18.5
Size of the Construction Area:57,223 m2 19586.86343
Unit Emission Rate:1.74755E-05 g/m2-sec
Daily Max Onsite PM10E
DPM Emissions Work Days DPM Emissions DPM Emissions
Activity Start Date End Date lb/day days (lbs)(tons)
Site Preparation 4/1/2025 4/28/2025 1.930932022 20 38.62 0.019309
Grading 4/29/2025 5/26/2025 1.14600709 20 22.92 0.011460
Demolition (Rock blasting/crushing)5/27/2025 8/4/2025 0.07 50 3.50 0.001750
Building Construction - 2025 8/5/2025 12/31/2025 0.466304762 107 49.89 0.024947
Building Construction - 2026 1/1/2026 6/22/2026 0.409360626 123 50.35 0.025176
Paving 6/23/2026 7/20/2026 0.319865709 20 6.40 0.003199
Architectural Coating 7/21/2026 8/17/2026 0.030871232 20 0.62 0.000309
4.3733 360 172.299 0.479
Annual DPM # Construction Average Daily Average Hourly Average Hourly Average Hourly
Emissions Work Days DPM Emissions DPM Emissions DPM Emissions DPM Area Emission
Year (tons/year)(lb/day)(lb/hr)(g/sec)(g/m2-sec)
2025 0.057467 197 0.5834 0.0729 0.0092 1.607E-07 →1.32E-07
2026 0.028683 163 0.3519 0.0440 0.0055 9.695E-08
0.015
Offsite DPM Construction Emissions
Daily Max Onsite PM10E Daily Max Onsite PM10E Daily Max Onsite PM10E
Offsite DPM Offsite DPM Offsite DPM Offsite DPM Offsite DPM Offsite DPM Offsite DPM Offsite DPM Offsite DPM
Haul Truck Haul Truck Haul Truck Vendor Truck Vendor Truck Vendor Trucks Worker Vehicles Worker Vehicles Worker Vehicles
Activity Start Date End Date Work Days (lb/day)(pounds)tons (lb/day)(pounds)(tons)(lb/day)(pounds)(tons)
Site Preparation 4/1/2025 4/28/2025 20 0.0000 0 0 0.0000 0 0 0.0000 0 0
Grading 4/29/2025 5/26/2025 20 0.00573 0.114640376 5.73202E-05 0.0000 0 0 0.0000 0 0
Demolition (Rock blasting/crushing)5/27/2025 8/4/2025 50 0.00000 0 0 0.0000 0 0 0.0000 0 0
Building Construction - 2025 8/5/2025 12/31/2025 107 0.0000 0 0 0.0101 1.075446153 0.000537723 0.0000 0 0
Building Constriciton - 2026 1/1/2026 6/22/2026 123 0.0000 0 0 0.0101 1.236260531 0.00061813 0.0000 0 0
Paving 6/23/2026 7/20/2026 20 0.0000 0 0 0.0000 0 0 0.0000 0 0
Architectural Coating 7/21/2026 8/17/2026 20 0.0000 0 0 0.0000 0 0 0.0000 0 0
360 0.005732019 0.114640376 5.73202E-05 0.020101797 2.311706683 0.001155853 0 0 0
Offsite DPM Emissions (at the CalEEMOd Default Trip Distances)
Haul Trucks Vendor Trucks Worker Vehicles
# of Construction AnnualEmissions Average Daily Average Hourly Average Hourly AnnualEmissions Average Daily Average Hourly Average Hourly AnnualEmissions Average Daily Average HourlyAverage Hourly
Year Days (tons/year)(lb/day)(lb/hr)(g/sec)(tons/year)(lb/day)(lb/hr)(g/sec)(tons/year)(lb/day)(lb/hr)(g/sec)4.91E-04
2025 197 5.73202E-05 0.000581931 7.27414E-05 9.17349E-06 0.000537723 0.005459118 0.00068239 0.00008606 0 0 0 0
2026 163 0 0 0 0 0.00061813 0.00758442 0.000948053 0.00011956 0 0 0 0
CalEEMod Construction Vehicle Trip Length
Vehicle Distance
(miles)meters
Haul Truck 20 3.219E+04
Vendor Truck 10.2 1.642E+04
Worker 18.5 2.977E+04
Onsite Routes
Meters Miles Percent of Trips
Onsite 1: Construction onsite [Two way]616.3 0.382951066 1 5mph
Offsite Routes
Meters Miles Percent of Trips
Offsite 1: Site>SR 60 (Two way)6411.8 3.98410781 1
#REF!#REF!#REF!#REF!
Offsite Scaled DPM Emissions to AERMOD Trip Distance
Haul Trucks Vendor Trucks Worker Vehicles Total Total Total
Year (g/sec)(g/sec)(g/sec)(g/sec)(lb/hr)(lb/day)
2025 (From CalEEMOd)9.173E-06 8.606E-05 0.000E+00
Onsite (Two way)1.756E-07 3.231E-06 0.000E+00 3.407E-06 2.701E-05 2.161E-04
2025 (Scaled for Distance and Distribution)
Offsite 1: Site>SR 60 (Two way)1.827E-06 3.361E-05 0.000E+00 3.544E-05 2.810E-04 2.248E-03
2026 (from CalEEMod)0.000E+00 1.196E-04 0.000E+00
Onsite 0.000E+00 4.489E-06 0.000E+00 4.489E-06 3.559E-05 2.848E-04
2026 (Scaled for Distance and Distribution)
Offsite 1: Site>SR 60 (Two way)0.000E+00 4.670E-05 0.000E+00 4.670E-05 3.703E-04 2.962E-03
hauling has no 2026
Weighted Average Emissions
Offsite 1 4.054E-05 g/sec
Onsite 3.897E-06
Conifer Self Storage Project 0
Annual DPM Concentrations at Maximum Impacted Sensitive and Worker Receptor
Onsite Unit Emission Source Rate
Size of Construction Area 57,223 m2
Unit EmissionRate:1.74755E-05 g/m2-sec
Inputs:
Actual Onsite Emission Source
Average Hourly
Emission Rate Weighted Avg
Year (g/m2-sec)(g/m2-sec)
2025 1.60721E-07 Area Source:
2026 9.6953E-08 1.32E-07
Offsite Unit Emission Source:0.001 g/sec
Average Hourly
Emission Rate New 60mi Inputs
Year (g/sec)(g/sec)
Onsite 3.89658E-06 g/sec
2025 Offsite 1: Site>SR 60 (Two way)4.05389E-05 g/sec
#REF!g/sec
Results:
Modeled Annual DPM Concentrations at Maximum Impacted Sensitive Receptor Max=School 0.02456
Max=Residential 0.07724
Actual Max^0.07724
Model DPM Total Max=Worker 1.199
Output (1)Concentration Annual
Year Emission Source (ug/m3)(ug/m3)(ug/m3)
2025 Onsite 0.0000 0.00686
Offsite
2026 Onsite 0.0000 0.00E+00
Offsite
Modeled Annual DPM Concentrations at Maximum Impacted Worker Receptor
Actual
Model DPM Total
Output (1)Concentration Annual
Year Emission Source (ug/m3)(ug/m3)(ug/m3)
2025 Onsite 0.0000 0.1339
Offsite
2026 Onsite 0.0000 0.0000
Offsite
Note:
(1) Based on a unit emission rate
Health Risk Assessment
Conifer Self Storage Project
APPENDIX D – ESTIMATION OF CONSTRUCTION HEALTH RISK
Conifer Self Storage Project
Exposure Durations During Construction
Start End Days % Year
Calendar Construction Days 4/1/2025 8/17/2026 503 1.38
3rd Trimester (2025)4/1/2025 7/1/2025 91 0.25
0-1 year (2025)7/1/2025 12/31/2025 183 0.50
0-1 year (2026)1/1/2026 8/17/2026 228 0.62
Total:1.13
Conifer Self Storage Project
Annual DPM Concentrations at Maximum Impacted Sensitive and Worker Receptor
Onsite Unit Emission Source Rate
Size of Construction Area 57,223 m2 19586.78507
Unit EmissionRate:1.74755E-05 g/m2-sec > Plugged this into Area Source
Inputs:
Actual Onsite Emission Source
Average Hourly
Emission Rate Weighted Avg
Year (g/m2-sec)(g/m2-sec)
2025 1.60721E-07 Area Source:
2026 9.6953E-08 1.32E-07
Offsite Unit Emission Source:0.001 g/sec
Average Hourly
Emission Rate New 60mi Inputs
Year (g/sec)(g/sec)
Onsite 3.89658E-06 g/sec
2025 Offsite 1: Site>SR 60 (Two way)4.05389E-05 g/sec
Results:
Max=school 0.00364
Max=Residential 0.0467
Max^0.0467
Max=Worker 0.00326
Receptor
Cancer Risk (per million)Exceeds Significance
Threshold?Maximum Lifetime Proposed Project Risk Significance Threshold
Maximum Impacted Sensitive Receptor – Infant to
Adult (30 years)6.62 10 No
Maximum Impacted Sensitive Receptor – Adult 0.18 10 No
Maximum Impacted Worker Receptor 0.01 10 No
Receptor
Chronic Non-Cancer Hazard Index Exceeds Significance
Threshold?Maximum Lifetime Proposed Project Risk Significance Threshold
Maximum Impacted Sensitive Receptor – Infant to
Adult (30 years)0.01 1 No
Maximum Impacted Sensitive Receptor – Adult 0.01 1 No
Maximum Impacted Worker Receptor 0.00 1 No
5mph
Conifer Self Storage Project
Cancer Risk Calculation - Location of Max Risk
Total
SCAQMD Guidance Residential 30-year Exposure Cancer risk HI
6.62 0.01
Maximum Period DPM Concentration 0.0467 ug/m3
Maximum 95%Operational
DPM CPF DBR ED EF AT TAH Risk
Year Year (ug/m3)(mg/kg-day)^-1 (l/kg-day)(years)(days)(years)(%)ASF (risk/million)
3rd Trimester 2025 0.04670 1.1 361 0.25 250 25550 1 10 0.45
1 2025 0.04670 1.1 1090 0.50 250 25550 1 10 2.75
2 2026 0.04670 1.1 1090 0.62 250 25550 1 10 3.42
3 2027 0.00000 0.00
4 2028 0.00000 0.00
5 2029 0.00000 0.00
6 2030 0.00000 0.00
7 2031 0.00000 0.00
8 2032 0.00000 0.00
9 2033 0.00000 0.00
10 2034 0.00000 0.00
11 2035 0.00000 0.00
12 2036 0.00000 0.00
13 2037 0.00000 0.00
14 2038 0.00000 0.00
15 2039 0.00000 0.00
16 2040 0.00000 0.00
17 2041 0.00000 0.00
18 2042 0.00000 0.00
19 2043 0.00000 0.00
20 2044 0.00000 0.00
21 2045 0.00000 0.00
22 2046 0.00000 0.00
23 2047 0.00000 0.00
24 2048 0.00000 0.00
25 2049 0.00000 0.00
26 2050 0.00000 0.00
27 2051 0.00000 0.00
28 2052 0.00000 0.00
29 2053 0.00000 0.00
30 2054 0.00000 0.00
Conifer Self Storage Project 0
Cancer Risk Calculation - Location of Max Risk
Total
SCAQMD Guidance Residential 30-year Exposure Adult Cancer risk
0.18
Maximum Period DPM Concentration 0.0467 ug/m3
Maximum Operational
DPM CPF DBR ED EF AT TAH Risk
Year Year (ug/m3)(mg/kg-day)^-1 (l/kg-day)(years)(days)(years)(%)ASF (risk/million)
1 2025 0.04670 1.1 261 0.75 350 25550 0.73 1 0.10
2 2026 0.04670 1.1 261 0.62 350 25550 0.73 1 0.08
3 2027 0.00000 0.00
4 2028 0.00000 0.00
5 2029 0.00000 0.00
6 2030 0.00000 0.00
7 2031 0.00000 0.00
8 2032 0.00000 0.00
9 2033 0.00000 0.00
10 2034 0.00000 0.00
11 2035 0.00000 0.00
12 2036 0.00000 0.00
13 2037 0.00000 0.00
14 2038 0.00000 0.00
15 2039 0.00000 0.00
16 2040 0.00000 0.00
17 2041 0.00000 0.00
18 2042 0.00000 0.00
19 2043 0.00000 0.00
20 2044 0.00000 0.00
21 2045 0.00000 0.00
22 2046 0.00000 0.00
23 2047 0.00000 0.00
24 2048 0.00000 0.00
25 2049 0.00000 0.00
26 2050 0.00000 0.00
27 2051 0.00000 0.00
28 2052 0.00000 0.00
29 2053 0.00000 0.00
30 2054 0.00000 0.00
Conifer Self Storage Project 0
Cancer Risk Calculation - Location of Max Risk
Total
SCAQMD Guidance Worker 25-year Exposure Cancer risk HI
0.01 0.00
Maximum Period DPM Concentration 0.00326 ug/m3
Maximum Operational
DPM CPF DBR ED EF AT Risk
Year Year (ug/m3)(mg/kg-day)^-1 (l/kg-day)(years)(days)(years)ASF (risk/million)
1 2025 0.00326 1.1 230 0.75 250 25550 1 0.01
2 2026 0.00326 1.1 230 0.62 250 25550 1 0.01
3 2026 0.00
4 2027 0.00
5 2028 0.00
6 2029 0.00
7 2030 0.00
8 2031 0.00
9 2032 0.00
10 2033 0.00
11 2034 0.00
12 2035 0.00
13 2036 0.00
14 2037 0.00
15 2038 0.00
16 2039 0.00
17 2040 0.00
18 2041 0.00
19 2042 0.00
20 2043 0.00
21 2044 0.00
22 2045 0.00
23 2046 0.00
24 2047 0.00
25 2048 0.00
Conifer Self Storage Project 0
Cancer Risk Calculation - Location of Max Risk
Total
SCAQMD Guidance Residential 70-year Exposure Cancer risk
4.68
Maximum Period DPM Concentration 0.0467 ug/m3
Maximum 95%Operational
DPM CPF DBR ED EF AT TAH Risk
Year Year (ug/m3)(mg/kg-day)^-1 (l/kg-day)(years)(days)(years)(%)ASF (risk/million)
3rd Trimester 2025 0.04670 1.1 361 0.25 350 25550 0.85 10 0.54
1 2025 0.04670 1.1 1090 0.50 350 25550 0.85 10 3.27
2 2026 0.04670 1.1 1090 0.13 350 25550 0.85 10 0.88
3 0.00
4 0.00
5 0.00
6 0.00
7 0.00
8 0.00
9 0.00
10 0.00
11 0.00
12 0.00
13 0.00
14 0.00
15 0.00
16 0.00
17 0.00
18 0.00
19 0.00
20 0.00
21 0.00
22 0.00
23 0.00
24 0.00
25 0.00
26 0.00
27 0.00
28 0.00
29 0.00
30 0.00
Conifer Self Storage Project 0
Cancer Risk Calculation - Location of Max Risk
Total
SCAQMD Guidance Child 9-year Exposure Cancer risk
6.62
Maximum Period DPM Concentration 0.0467 ug/m3
Maximum 95%Operational
DPM CPF DBR ED EF AT TAH Risk
Year Year (ug/m3)(mg/kg-day)^-1 (l/kg-day)(years)(days)(years)(%)ASF (risk/million)
3rd Trimester 2025 0.04670 1.1 361 0.25 250 25550 1 10 0.45
1 2025 0.04670 1.1 1090 0.50 250 25550 1 10 2.75
2 2026 0.04670 1.1 1090 0.62 250 25550 1 10 3.42
3 2027 0.00000 0.00
4 2028 0.00000 0.00
5 2029 0.00000 0.00
6 2030 0.00000 0.00
7 2031 0.00000 0.00
8 2032 0.00000 0.00
9 2033 0.00000 0.00
0