San Marcos City Council
June 24, 2025

Project: 22-124 Armorlite Lofts 225 Air Quality

AIR QUALITY ASSESSMENT

Armorlite Lofts Residential Development
GPA23-0002, R23-0001
SDP23-0003, CUP23-0002
City of San Marcos, CA

Prepared for:

City of San Marcos
1 Civic Center Drive
San Marcos, CA 92069

Prepared By:

23811 Washington Ave, C110-333
Murrieta, CA 92562

November 4, 2024

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TABLE OF CONTENTS

TABLE OF CONTENTS ............................................................................................................................ II LIST OF FIGURES .................................................................................................................................. III LIST OF TABLES ................................................................................................................ ................... III APPENDIX ........................................................................................................................................... III LIST OF COMMON ACRONYMS ............................................................................................................ IV

1.0 INTRODUCTION ....................................................................................................................... 1

1.1 PROJECT DESCRIPTION ..................................................................................................................................... 1

1.2 PROJECT LOCATION ......................................................................................................................................... 1

1.3 PURPOSE OF THIS STUDY .................................................................................................................................. 1

2.0 EXISTING ENVIRONMENTAL SETTING ....................................................................................... 4

2.1 EXISTING SETTING ........................................................................................................................................... 4

2.2 CLIMATE AND METEOROLOGY ........................................................................................................................... 5

2.3 REGULATORY STANDARDS ................................................................................................................................. 5

2.3.1 FEDERAL STANDARDS AND DEFINITIONS .............................................................................................................. 5

2.3.2 STATE STANDARDS AND DEFINITIONS .................................................................................................................. 7

2.3.3 REGIONAL STANDARDS ..................................................................................................................................... 9

2.4 CALIFORNIA ENVIRONMENTAL QUALITY ACT (CEQA) SIGNIFICANCE THRESHOLDS ..................................................... 10

2.5 SDAPCD RULE 20.2 – AIR QUALITY IMPACT ASSESSMENT SCREENING THRESHOLDS ................................................ 11

2.6 LOCAL AIR QUALITY ....................................................................................................................................... 12

3.0 METHODOLOGY ..................................................................................................................... 14

3.1 CONSTRUCTION EMISSIONS CALCULATIONS ........................................................................................................ 14

3.2 CONSTRUCTION ASSUMPTIONS ........................................................................................................................ 15

3.3 OPERATIONAL EMISSIONS ............................................................................................................................... 17

3.4 ODOR IMPACTS ............................................................................................................................................ 18

4.0 FINDINGS ............................................................................................................................... 19

4.1 CONSTRUCTION FINDINGS .............................................................................................................................. 19

4.2 HEALTH RISK ................................................................................................................................................ 20

4.3 ODOR IMPACT FINDINGS ................................................................................................................................ 21

4.4 OPERATIONAL FINDINGS ................................................................................................................................. 21

4.5 CUMULATIVE IMPACTS ................................................................................................................................... 22

4.6 CONCLUSION OF FINDINGS .............................................................................................................................. 22

5.0 REFERENCES .......................................................................................................................... 24

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List of Figures

FIGURE 1-A: RESIDENTIAL DEVELOPMENT DETAILS .............................................................................. 2 FIGURE 1-B: PROJECT VICINITY MAP..................................................................................................... 3 FIGURE 2-A: EXISTING SITE LAYOUT ..................................................................................................... 4

List of Tables

TABLE 2.1: AMBIENT AIR QUALITY STANDARDS .................................................................................. 8 TABLE 2.2: SAN DIEGO COUNTY AIR BASIN ATTAINMENT STATUS BY POLLUTANT ............................. 10 TABLE 2.3: SCREENING LEVEL THRESHOLDS FOR CRITERIA POLLUTANTS ............................................ 11 TABLE 2.4: TWO-YEAR AMBIENT AIR QUALITY SUMMARY NEAR THE PROJECT SITE ........................... 13 TABLE 3.1: EXPECTED CONSTRUCTION EQUIPMENT .......................................................................... 16 TABLE 4.1: EXPECTED CONSTRUCTION EMISSIONS SUMMARY (POUNDS/DAY) ................................. 19 TABLE 4.2: DAILY POLLUTANT GENERATION ....................................................................................... 21

Appendix

CALEEMOD ........................................................................................................................................ 26 AERSCREEN FOR PM10 EXHAUST ......................................................................................................... 74 CANCER RISK CALCULATIONS ............................................................................................................. 79 TEREX 4242SR ROCK CRUSHER CUT SHEET.......................................................................................... 82

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LIST OF COMMON ACRONYMS

Air Quality Impact Assessments (AQIA)
Assembly Bill 32 (AB32)
California Air Resource Board (CARB)
California Ambient Air Quality Standards (CAAQS)
California Environmental Quality Act (CEQA)
Carbon Dioxide (CO2)
Cubic Yards (CY)
Diesel Particulate Matter (DPM)
Environmental Protection Agency (EPA)
EPA Office of Air Quality Planning and Standards (OAQPS) Hazardous Air Pollutants (HAPs)
Hydrogen Sulfide (H2S)
International Residential Code (IRC)
Level of Service (LOS)
Low Carbon Fuel Standard (LCFS)
Methane (CH4)
National ambient air quality standards (NAAQS)
Nitrous Oxide (N2O)
Reactive Organic Gas (ROG)
Regional Air Quality Strategy (RAQS)
San Diego Air Basin (SDAB)
San Diego Air Pollution Control District (SDAPCD)
South Coast Air Quality Management District (SCAQMD)
Specific Plan Area (SPA)
State Implementation Plan (SIP)
Toxic Air Contaminants (TACs)
Vehicle Miles Traveled (VMT)

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1.0 INTRODUCTION

1.1 Project Description

The project proposes up to 165 multi-family residential unit s within a five-story building situated on approximately 2.4 acres. The project would also include up to 5,600 square feet (SF) of retail/flex use. Additionally, the project proposes as many as 254 parking spaces which includes 13 Level 2 electric vehicle (EV) spaces, 62 EV ready spaces, and 25 EV capable spaces. The project seeks a General Plan Amendment (GPA) and to rezone the property from Public-Institutional (P-I) Specific Plan Area (SPA). Construction would be expected to start in 2026 and be completed in about one year. Full operations are expected in late 2027. The project development plan is shown in Figure 1-A.

1.2 Project Location

The vacant 2.4-acre project site having an Assessor Parcel Number (APN) of 219-612-62-00 is located
along Armorlite Drive in the City of San Marcos. Specif ically, the project site is located north of State Route 78 (SR-78) and east of Las Posas Road between W. Mission Road and Armorlite Drive. A project vicinity map and location map are shown in Figure 1-B.

The project would start grading in 2026 with re sidential construction to start shortly thereafter. Grading would consist of approximately 6,950 cubic yards (CY) of cut material and 4,400 CY of fill material. Based on discussions with the engineer, shrinkage would be expected and the total export expected would be approximately 2,250 CY of material. During grading, blasting may be required and if blasting is required, a standalone rock crusher similar to a Terex 4242SR 310 horsepower (HP)+/- will be utilized.

1.3 Purpose of this Study

The purpose of this Air Quality study is to de termine potential significant air quality impacts (if any) that may be generated by construction or operational emissions from the proposed project. Should impacts be determined, the in tent of this study wo uld be to recommend suitable mitigation measures to bring those impa cts to a level that would be considered less than significant under the California Environmental Quality Act (CEQA).

2 Ldn Consulting, Inc. 11/4/24 22-124 Armorlite Lofts 225 Air Quality Figure 1-A: Residential Development Details

Source: (Summa Architecture, 2024)

3 Ldn Consulting, Inc. 11/4/24 22-124 Armorlite Lofts 225 Air Quality Figure 1-B: Project Vicinity Map

Source: (Google, 2023)
Project
Location

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2.0 EXISTING ENVIRONMENTAL SETTING

2.1 Existing Setting

The existing site is currently vacant. The project is bounded by existing commercial and retail uses to the west, existing multi-family residential units to the east, W. Mission Road and the San Diego Northern Railroad (SDNR) to the north, and Armorlite Drive to the south. Existing multi-family residential units are located across Armorlite Drive to the south. Elevations onsite are approximately 575 feet above mean sea level. The existing site aerial map is shown in Figure 2-A.

Figure 2-A: Existing Site Layout

Project Site
Source: (Google Earth Pro, 2023)

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2.2 Climate and Meteorology

Climate within the San Diego Air Basin (SDAB) area often varies dramatically over short geographical distances with cooler temperatures on the western coast gradually warming to the east as prevailing winds from the west heats up. Most of southern California is dominated by high-pressure systems for much of the year, which keeps San Diego mostly sunny and warm. Typically, during the winter months, the high-pressure systems drop to the south and brings cooler, moister weather from the north.

Meteorological trends within the area generally show daytime highs ranging between 64ºF in the winter to approximately 88ºF in the summer with August usually being the hottest month.

Daytime Low temperatures range from approximately 37ºF in the winter to approximately 59ºF in the summer. Precipitation is generally about 16.2 inches per year (WRCC, 2021).

Prevailing wind patterns for the area vary duri ng any given month during the year and also vary depending on the time of day or night. The predominant pattern though throughout the year is usually from the west or westerly (WRCC, 2018).

2.3 Regulatory Standards

2.3.1 Federal Standards and Definitions

The Federal Air Quality Standards were developed per the requirements of The Federal Clean Air Act, which is a federal law that was passed in 1970 and further amended in 1990. This law provides the basis for the national air pollution control effort. An important element of the act included the development of national ambient air quality standards (NAAQS) for major air pollutants.

The Clean Air Act established two types of air quality standards otherwise known as primary and secondary standards.

Primary Standards set limits to protect public health which includes sensitive populations such as asthmatics, children, and elderly. Secondary Standards set limits to protect pub lic welfare and include prot ection against decreased visibility, damage to animals, crops, vegetation, and buildings.

The Environmental Protection Agency’s (EPA O ffice of Air Quality Planning and Standards (OAQPS) has set National Ambient Air Quality Standards (NAAQS) for principal pollutants, which are called "criteria" pollutants. These pollutants are defined below (EPA, 2022):

1. Carbon Monoxide (CO): is a colorless, odorless, and tasteless gas and is produced from the partial combustion of carbon-containing compounds, notably in internal-combustion engines. Carbon monoxide usually forms when there is a reduced availability of oxygen

6 Ldn Consulting, Inc. 11/4/24 22-124 Armorlite Lofts 225 Air Quality present during the combustion process. Exposure to CO near the levels of the ambient air quality standards can lead to fatigue, headaches, confusion, and dizziness. CO interferes with the blood's ability to carry oxygen (EPA, 2022).

2. Lead (Pb): is a potent neurotoxin that accumulates in soft tissues and bone over time.

The major sources of lead emissions have hist orically been motor vehicles (such as cars and trucks) and industrial sources. Because lead is only slowly excreted, exposures to small amounts of lead from a variety of sources can accumulate to harmful levels. Effects from inhalation of lead near the level of the ambient air quality standard include impaired blood formation and nerve conduction. Lead can adversely affect the nervous, reproductive, digestive, immune, and blood-f orming systems. Symptoms can include fatigue, anxiety, short-term memory loss, de pression, weakness in the extremities, and learning disabilities in children (EPA, 2022).

3. Nitrogen Dioxide (NO2): is a reactive, oxidizing gas capable of damaging cells lining the respiratory tract and is one of the nitrogen oxides emitted from high-temperature combustion, such as those occurring in trucks, cars, power plants, home heaters, and gas stoves. In the presence of other air contaminants, NO2 is usually visible as a reddish-brown air layer over urban areas. NO2 along with other traffic-related pollutants is associated with respiratory symptoms, respirat ory illness and respiratory impairment. Studies in animals have reported biochemical, structural, and ce llular changes in the lung when exposed to NO2 above the level of the current state air qu ality standard. Clinical studies of human subjects suggest that NO 2 exposure to levels near the cu rrent standard may worsen the effect of allergens in allergic asthmatics, especially in children (EPA, 2022).

4. Particulate Matter (PM10 or PM2.5): is a complex mixture of tiny particles that consists of dry solid fragments, solid cores with liquid coatings, and small droplets of liquid. These particles vary in shape, size and chemical co mposition, and can be made up of multiple materials such as metal, soot, soil, and dust. PM 10 particles are 10 microns ( μm) or less and PM 2.5 particles are 2.5 ( μm) or less. These particles can contribute significantly to regional haze and reduction of visibility in California. Exposure to PM levels exceeding current air quality standards increases the risk of allergies such as asthma and respiratory illness (EPA, 2022).

5. Ozone (O3): Ozone at the ground level is a high ly oxidative unstable gas capable of damaging the linings of the respiratory tract. This pollutant forms in the atmosphere through reactions between chemicals directly emitted from vehicles, industrial plants, and many other sources. Exposure to ozone above ambient air quality standards can lead to human health effects such as lung inflamma tion, tissue damage and impaired lung functioning. Ozone can also damage materials such as rubber, fabrics and plastics (EPA, 2022).

It should be noted that Oxides of Nitrogen (NO x) is a family of poisonous, highly reactive gases. These gases form when fuel is burned at high temperatures. NOx pollution is emitted

7 Ldn Consulting, Inc. 11/4/24 22-124 Armorlite Lofts 225 Air Quality by automobiles, trucks and various non-road vehicles (e.g., construction equipment, boats, etc.) as well as industrial sources such as power plants, industrial boilers, cement kilns, and turbines. NOx often appears as a brownish gas. It is a strong oxidizing agent and plays a major role in the atmospheric reactions with Volatile Organic Compounds (VOCs) which produces ozone on hot summer days (EPA, 2023).

6. Sulfur Dioxide (SO2): is a gaseous compound of sulfur and oxygen and is formed when sulfur-containing fuel is burned by mobile so urces, such as locomotives, ships, and off- road diesel equipment. SO 2 is also emitted from several industrial processes, such as petroleum refining and metal processing. Effects from SO 2 exposures at levels near the one-hour standard include bronchoconstriction accompanied by symptoms, which may include wheezing, shortness of breath and ches t tightness, especially during exercise or physical activity. Children, the elderly, and people with asthma, cardiovascular disease or chronic lung disease (such as bronchitis or emphysema) are most susceptible to these symptoms. Continued exposure at elevated levels of SO2 results in increased incidence of pulmonary symptoms and disease, decreased pulmonary function, and increased risk of mortality (EPA, 2022).

2.3.2 State Standards and Definitions

The State of California Air Resources Board (ARB) sets the laws and regulations for air quality at the State level. The California Ambient Air Quality Standards (CAAQS) are either the same as or more restrictive than the NAAQS in that the State standards also restrict four additional contaminants. Table 2.1 on the following page identifies both the NAAQS and CAAQS. The additional contaminants as regulated by the CAAQS are defined below:

1. Visibility Reducing Particles : Particles in the Air that obstruct the visibility (CARB, 2023).

2. Sulfates: are salts of Sulfuric Acid. Sulfates occu r as microscopic particles (aerosols) resulting from fossil fuel and biomass combustion. They increase the acidity of the atmosphere and form acid rain (CARB, 2023).

3. Hydrogen Sulfide (H 2S): is a colorless, toxic and flammable gas with a recognizable smell of rotten eggs or flatulence. H 2S occurs naturally in crude petroleum, natural gas, volcanic gases, and hot springs. Usually, H2S is formed from bacterial breakdown of organic matter. Exposure to low concentrations of hydrogen sulfide may cause irritation to the eyes, nose, or throat. It may also cause diffic ulty in breathing for some asthmatics. Brief exposures to high concentrations of hydrogen sulfide (greater than 500 ppm) can cause a loss of consciousness and possibly death (CARB, 2023).

4. Vinyl Chloride: also known as chloroethene and is a toxic, carcinogenic, colorless gas with a sweet odor. It is an industrial chemical mainly used to produce its polymer, polyvinyl chloride (PVC) (CARB, 2023).

8 Ldn Consulting, Inc. 11/4/24 22-124 Armorlite Lofts 225 Air Quality Table 2.1: Ambient Air Quality Standards
Ambient Air Quality Standards
Pollutant Average Time California Standards1 Federal Standards2 Concentration3 Method 4 Primary 3,5 Secondary 3,6 Method 7 Ozone (O3)8
1 Hour 0.09 ppm
(180 µg/m3) Ultraviolet Photometry
- Same as Primary
Standard Ultraviolet Photometry
8 Hour 0.070 ppm
(137 µg/m3)

0.070 ppm
(137 µg/m3)
Respirable Particulate
Matter (PM10)9
24 Hour 50 µg/m3 Gravimetric or Beta
Attenuation
150 µg/m3 Same as Primary
Standard
Inertial Separation and
Gravimetric Analysis Annual Arithmetic Mean 20 µg/m3 - Fine Particulate Matter
(PM2.5)9
24 Hour No Separate State Standard 35 µg/m3 Same as Primary Standard Inertial Separation and
Gravimetric Analysis Annual Arithmetic Mean 12 µg/m3 Gravimetric or Beta Attenuation 12.0 µg/m3 15 µg/m3
Carbon Monoxide (CO)
8 hour 9.0 ppm
(10mg/m3)
Non-Dispersive Infrared
Photometry (NDIR)
9 ppm (10 mg/m3)
- Non-Dispersive Infrared
Photometry 1 hour 20 ppm
(23 mg/m3)
35 ppm
(40 mg/m3)
8 Hour (Lake Tahoe) 6 ppm
(7 mg/m3) - - -
Nitrogen Dioxide (NO2)10
Annual Arithmetic Mean 0.030 ppm
(57 µg/m3) Gas Phase
Chemiluminescence

0.053 ppm
(100 µg/m3)8
Same as Primary
Standard Gas Phase
Chemiluminescence 1 Hour 0.18 ppm
(339 µg/m3)

0.100 ppm8
(188/ µg/m3) -
Sulfur Dioxide (SO2)11
Annual Arithmetic Mean -
Ultraviolet Fluorescence

0.030 ppm10
(for Certain Areas) -
Ultraviolet Flourescence;
Spectrophotometry
(Pararoosaniline
Method)9
24 Hour 0.04 ppm
(105 µg/m3)

0.14 ppm10
(for Certain Areas)
(See Footnote 9)
-
3 Hour - - 0.5 ppm
(1300 µg/m3)
1 Hour 0.25 ppm
(655 µg/m3)
75 ppb
(196 µg/m3) -
Lead12,13
30 Day Average 1.5 µg/m3
Atomic Absorption
- -
Calendar Quarter - 1.5 µg/m3 Same as Primary
Standard
High Volume Sampler
and Atomic Absorption Rolling 3-Month Average - 0.15 µg/m3 Visibility Reducing
Particles 8 Hour See footnote 13

Sulfates 24 Hour 25 µg/m3 Ion Chromatography
Hydrogen Sulfide 1 Hour 0.03 ppm
(42 µg/m3) Ultraviolet Fluorescence
Vinyl Chloride12 24 Hour 0.01 ppm
(26 µg/m3) Gas Chromatography

1. California standards for ozone, carbon monoxide (except 8-hour Lake Tahoe), sulfur dioxide (1 and 24 hour), nitrogen dioxide, a nd particulate matter (PM10, PM2.5, and visibility reducing particles), are values that are not to be exceeded. All others are not to be equaled or exceeded. California ambient air quality standards are listed in the Table of Standards in Section 70200 of Title 17 of the California Code of Regulations.

2. National standards (other than ozone, particulate matter, and those based on annual arithmetic mean) are not to be exceeded more than once a year. The ozone standard is attained when the fourth highest 8-hour concentration measured at each si te in a year, averaged over three years, is equal to or less th an the standard. For PM10, the 24-hour standard is attained when the expected number of days per calendar year with a 24-hour average concentration above 150 µg/m3 is equal to or less than one. For PM2.5, the 24-hour standard is attained when 98 percent of the daily concentrations, averaged over three years, are equal to or less than the standard. Con tact the U.S. EPA for further clarification and current national policies.

3. Concentration expressed first in units in which it was promulgated. Equivalent units given in parentheses are based upon a reference temperature of 25°C and a reference pressure of 760 torr. Most measurements of air quality are to be corrected to a reference temperature of 25°C and a reference pressure of 760 torr; ppm in this table refers to ppm by volume, or micromoles of pollutant per mole of gas.

4. Any equivalent procedure which can be shown to the satisfaction of the ARB to give equivalent results at or near the level of the air quality standard may be used.

5. National Primary Standards: The levels of air quality necessary, with an adequate margin of safety to protect the public health.

6. National Secondary Standards: The levels of air quality necessary to protect the public welfare from any known or anticipated adverse effects of a pollutant.

7. Reference method as described by the EPA. An “equivalent method” of measurement may be used but must have a “consistent relationship to the reference method” and must be approved by the EPA.

8. On October 1, 2015, the national 8-hour ozone primary and secondary standards were lowered from 0.075 to 0.070 ppm.

9. On December 14, 2012, the national annual PM2.5 primary standard was lowered from 15 μg/m3 to 12.0 μg/m3 . The existing national 24- hour PM2.5 standards (primary and secondary) were retained at 35 μg/m3 , as was the annual secondary standard of 15 μg/m3 . The existing 24-hour PM10 standards (primary and secondary) of 150 μg/m3 also were retained. The form of the annual primary and secondary standards is the annual mean, averaged over 3 years.

10. To attain the 1-hour national standard, the 3-year average of the annual 98th percentile of the 1-hour daily maximum concentrat ions at each site must not exceed 100 ppb. Note that the national 1-hour standard is in units of parts per billion (ppb). California standards are in units of parts per million (ppm). To directly compare the national 1-hour standard to the California standards the units can be converted from ppb to ppm. In this case, the national standard of 100 ppb is identical to 0.100 ppm.

11. On June 2, 2010, a new 1-hour SO2 standard was established and the existing 24-hour and annual primary standards were revoked. To attain the 1-hour national standard, the 3- year average of the annual 99th percentile of the 1-hour daily maximum concentrations at each site must not exceed 75 ppb. The 1971 SO2 national standards (24-hour and annual) remain in effect until one year after an area is designated for the 2010 standard, except that in areas designated nonattainment for the 1971 standards, the 1971 standards remain in effect until implementation plans to attain or maintain the 2010 standards are approved.

12. The ARB has identified lead and vinyl chlori de as 'toxic air contaminants' with no threshold level of exposure for adverse heal th effects determined. These actions allow for the implementation of control measures at levels below the ambient concentrations specified for these pollutants.

13. The national standard for lead was revised on October 15, 2008 to a rolling 3-month average. The 1978 lead standard (1.5 μg /m3 as a quarterly average) remains in effect until one year after an area is designated for the 2008 standard, except that in areas designated nonattainment for the 1978 standard, the 1978 standard remains in effect until implementation plans to attain or maintain the 2008 standard are approved.

14. In 1989, the ARB converted both the general statewide 10-mile visibility standard and the Lake Tahoe 30-mile visibility standard to instrumental equivalents, which are "extinction of

0.23 per kilometer" and "extinction of 0.07 per kilometer" for the statewide and Lake Tahoe Air Basin standards, respectively.

Source: (California Air Resources Board, 05/04/2016)

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2.3.3 Regional Standards

The State of California has 35 sp ecific air districts, which are each responsible for ensuring that the criteria pollutants are below the NAAQS and CAAQS. Air basins that exceed either the NAAQS or the CAAQS for any criteria pollutants are designated as “non-attainment areas” for that pollutant. Currently, there are 15 non-attainment areas for the federal ozone standard and two non-attainment areas for the PM 2.5 standard and many areas are in non-attainment for PM10 as well. California, therefore, created the California State Implementation Plan (SIP), which is designed to provide control measures needed to attain ambient air quality standards.

The San Diego Air Pollution Control District (SDAPCD) is the government agency which regulates sources of air pollution within the County. Therefore, the SDAPCD developed a Regional Air Quality Strategy (RAQS) to provide control measures to try to achieve attainment status for state ozone standards with control measures focused on VOCs and NO X. Currently,
San Diego is in “non-attainment” status for federal and state O3 and state PM10 and PM2.5. An attainment plan is available for O3. The RAQS was adopted in 1992 and has been updated as recently as 2022 which was the latest update incorporating minor changes to the prior 2016 update.

The 2022 update mostly summarizes how the 2016 update has lowered NO X and VOCs emissions which reduces ozone and clarifies and enhances emission reductions by introducing for discussion three new VOC and four new NO X reduction measures. NO X and VOCs are precursors to the formation of ozone in the at mosphere. The criteria pollutant standards are generally attained when each monitor within th e region has had no exceedances during the previous three calendar years. A complete listing of the current attainment status for criteria pollutants with respect to both federal and state nonattainment status by pollutants for the County is shown in Table 2.2 on the following page (SDAPCD, 2023).

The RAQS is largely based on population predictions by the San Diego Association of Governments (SANDAG). Projects that produce less growth than predicted by SANDAG would generally conform to the RAQS. Projects that create more growth than projected by SANDAG may create a significant impact if the project produces unmitigable air quality emissions or if the project produces cumulative impacts.

10 Ldn Consulting, Inc. 11/4/24 22-124 Armorlite Lofts 225 Air Quality Table 2.2: San Diego County Air Basin Attainment Status by Pollutant Criteria Pollutant Federal Designation State Designation Ozone (8-Hour) Nonattainment Nonattainment
Ozone (1-Hour) Attainment * Nonattainment
Carbon Monoxide Attainment Attainment
PM10 Unclassifiable ** Nonattainment
PM2.5 Attainment Nonattainment***
Nitrogen Dioxide Attainment Attainment
Sulfur Dioxide Attainment Attainment
Lead Attainment Attainment
Sulfates No Federal Standard Attainment
Hydrogen Sulfide No Federal Standard Unclassified
Visibility No Federal Standard Unclassified
* The federal 1-hour standard of 12 pphm was in effect from 1979 through June 15, 2005. The revoked standard is referenced here because it was employed for such a long period and because this benchmark is addressed in State Implementation Plans.
** At the time of designation, if the available data does not support a designation of attainment or nonattainment, the area is designated as unclassifiable.
***The California Air Resources Board (CARB) has not reclassified the region to attainment yet due to (1) incomplete data, and (2) the use of non-California Approved Samplers (CAS). While data collected does meet the requirements for designation of attainment with federal PM2.5 standards, the data completeness requirements for state PM2.5 standards substantially exceed federal requirements and mandates, and have historically not been feasible for most air districts to adhere to given local resources. APCD has begun replacing most regional filter-based PM2.5 monitors as they reach the end of their useful life with continuous PM2.5 air monitors to ensure collected data meets stringent completeness requirements in the future. APCD anticipates these new monitors will be approved as "CAS" monitors once CARB review the list of approved monitors, which has not been updated since 2013.
(SDAPCD, 2023)

2.4 California Environmental Qualit y Act (CEQA) Significance Thresholds

The California Environmental Quality Act has provid ed a checklist to identify the significance of air quality impacts. These guidelines are found in Appendix G of the CEQA guidelines and are as follows:

AIR QUALITY -- Where available, the significance criteria established by the applicable air quality management or air pollution control district may be relied upon to make the following determinations. Would the project:

A: Conflict with or obstruct implementation of the Regional Air Quality Strategy (RAQS) or applicable portions of the State Implementation Plan (SIP)? B: Result in a cumulatively considerable ne t increase of any criteria pollutant for which the project region is non-attainment under an applicable Federal or State ambient air quality standard (PM10, PM2.5 or exceed quantitative thresholds for O3 precursors, oxides of nitrogen [NO X] and Volatile Organic Compounds [VOCs])?

11 Ldn Consulting, Inc. 11/4/24 22-124 Armorlite Lofts 225 Air Quality C: Expose sensitive receptors (including, bu t not limited to, schools, hospitals, resident care facilities, or day-care centers) to substantial pollutant concentrations?
D: Result in other emission (such as those leading to odors) adversely affecting a substantial number of people?

2.5 SDAPCD Rule 20.2 – Air Quality Impact Assessment Screening Thresholds

The SDAPCD has established thresholds in Rule 20.2 for new or modified stationary sources.

These screening criteria can be used to demo nstrate that a project’s total emissions would not result in a significant impact as defined by CEQA. Also, since SDAPCD does not have a threshold for Volatile Organic Compounds (VOCs), it is acceptable to use the Coachella Valley VOC threshold from South Coast Air Quality Management District. Should emissions be found to exceed these thresholds, additional modeling is required to demonstrate that the project’s total air quality impacts are below the state and federal ambient air quality standards. These screening thresholds for construction and daily operations are shown in Table 2.3 below.

Table 2.3: Screening Level Thresholds for Criteria Pollutants Pollutant Total Emissions (Pounds per Day)
Construction Emissions
Respirable Particulate Matter (PM10 and PM2.5) 100 and 55 Nitrogen Oxide (NOx) 250
Sulfur Oxide (SOx) 250
Carbon Monoxide (CO) 550
Volatile Organic Compounds (VOCs) 75
Reactive Organic Gases (ROG) SCAQMD 75
Operational Emissions
Respirable Particulate Matter (PM10 and PM2.5) 100 and 55 Nitrogen Oxide (NOx) 250
Sulfur Oxide (SOx) 250
Carbon Monoxide (CO) 550
Lead and Lead Compounds 3.2
Volatile Organic Compounds (VOCs) 75
Reactive Organic Gases (ROG) SCAQMD 75

Non-Criteria pollutants such as Hazardous Air Pollutants (HAPs) or Toxic Air Contaminants (TACs) are also regulated by the SDAPCD. Rule 1200 (Toxic Air Contaminants - New Source Review) adopted on June 12, 1996, requires evaluation of potential health risks for any new,

12 Ldn Consulting, Inc. 11/4/24 22-124 Armorlite Lofts 225 Air Quality relocated, or modified emission unit which may increase emissions of one or more toxic air contaminants. The rule requires that projects that propose to increase cancer risk to between 1 and 10 in one million need to implement toxics best available control technology (T-BACT) or impose the most effective emission limitation, emission control device or control technique to reduce the cancer risk. At no time shall the project increase the cancer risk to over 10 in one million. In addition, a project shall not gene rate either a chronic or acute health hazard index greater than one. Projec ts creating cancer risks less than one in one million are not required to implement T-BACT technology.

The U.S. Environmental Protection Agency (U.S. EPA) uses the term Volatile Organic Compounds (VOC) and the California Air Resour ces Board's (CARB's) Emission Inventory Branch (EIB) uses the term Reactive Organic Gases (ROG) to essentially define the same thing. There are minor deviations between compounds that define each term. However, for purposes of this study we will assume they are essentially the same due to the fact SCAQMD interchanges these words and because CalEEMod directly calculates ROG in place of VOC.

2.6 Local Air Quality

Criteria pollutants are measured continuously throughout the San Diego Air Basin. This data is used to track ambient air quality patterns throughout the County. As mentioned earlier, this data is also used to determine attainment status when compared to the NAAQS and CAAQS. The SDAPCD is responsible for monitoring and reporting monitoring data. The District operates 10 monitoring sites, which collect data on criteria pollutants. Table 2.4 identifies the criteria pollutants monitored at the aforementioned station.

SDAPCD published the five-year air quality summary for all of the monitoring stations within the San Diego basin (SDAPCD, 2022). The proposed development project is closest to the Camp Pendleton and Carmel Mountain Ranch Moni toring stations. Table 2.4 identifies the criteria pollutants monitored at the aforementioned stations.

13 Ldn Consulting, Inc. 11/4/24 22-124 Armorlite Lofts 225 Air Quality Table 2.4: Two-Year Ambient Air Quality Summary near the Project Site Pollutant
Closest
Recorded
Ambient
Monitoring
Site
Averaging
Time CAAQS NAAQS 2021 2022 Days Exceeded
over 2 years
O3 (ppm)
Camp
Pendleton or
Carmel
Mountain
Ranch
1 Hour 0.09 ppm No
Standard 0.07 0.08 0
8 Hour 0.070 ppm 0.070 ppm 0.06 0.07 0
PM10
(µg/m3)
24 Hour 50 µg/m3 150
µg/m3 PM10 Data Not Available for Monitoring Sites
near Project Site Annual
Arithmetic
Mean
20 µg/m3 No
Standard
* PM2.5
(µg/m3)
24 Hour No
standard - 35 µg/m3 23.5 14.9 N/A
Annual
Arithmetic
Mean
12 µg/m3 15 µg/m3 8.5 7.6 N/A
NO2 (ppm)
Annual
Arithmetic
Mean

0.030 ppm 0.053 ppm 0.013 0.013 N/A
1 Hour 0.18 ppm 0.100 ppm 0.059 0.059 N/A
* CO
(ppm)
1 Hour 20 ppm 35 ppm 3.0 2.2 N/A 8 Hour 9 ppm 9 ppm 1.8 1.2 N/A Notes:

1. - Yearly maximums marked with “-“ indicated data was not available for either monitoring station.

2. * Data was selected from the Carmel Mountain Ranch station which began in 2019. All other data presented was collected at the Camp Pendleton Monitoring Station.

3. SO
2 is only monitored at the El Cajon Monitoring Station. Within the entire County of San Diego, SO2 emissions within the County are essentially Zero for all metrics including the Average, Maximum 24 hour and 1- hour standards. The Highest 1-hr measurement identified is 0.004 ppm and the most restrictive standard (CAAQS for SO2) is 0.25 ppm.

Souce: (SDAPCD, 2022)

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3.0 METHODOLOGY

3.1 Construction Emissions Calculations

Air Quality impacts related to construction an d daily operations were calculated using the CalEEMod air quality model (Version 2022.1), which was developed by South Coast Air Quality Management District (SCAQMD). The CalEEMod input/output model is shown in Attachment A to this report.

The AERSCREEN dispersion model was used to determine the concentration TACs at any location near the pollutant generator. Additionally, the model will predict the maximum exposure distance and concentrations. The AERSCREEN input/output file for the proposed project is shown in
Attachment B at the end of this report. The worst case exhaust emissions generated from the project from construction equipment was utilized and calculated within the CalEEMod model.

Once the dispersed concentrations of diesel particulates are estimated in the surrounding air, they are used to evaluate estimated exposure to people. Exposure is evaluated by calculating the dose in milligrams per kilogram body weight per day (mg/kg/d). For residential exposure, the breathing rates are determined for specific age groups, so inhalation dose (Dose-air) is calculated for each of these age groups, 3r d trimester, 0<2, 2<9, 2<16, 16<30 and 16-70 years. The following algorithms calculate this dose for expo sure through the inhalation pathways. The worst case cancer risk dose calculation is defined in Equation 1 below (OEHHA, 2015).

Equation 1 Dose air=Cair*(BR/BW)*A*EF*(1x10-6)

Doseair = Dose throu gh inhalation (mg/kg/d)
Cair =
Concentration in air (μg/m3) Annual average DPM concentration in µg/m3 - AERSCREEN predicts a 1-hr concentration and is corrected to an annual average by multiplying the 1-hr average by 0.08 (US EPA, 1992)
BR/BW = Daily breathing rate normalized to body weight (L/kg BW-day). See Table I.2 for the daily breathing rate for each age range.

A = Inhalation ab sorption factor (assumed to be 1)
EF = Exposure frequency (unitless, days/365 days)
1x10-6 = Milligrams to micrograms conversion (10-3 mg/ μg), cubic meters to liters conversion (10-3 m3/l)

Cancer risk is calculated by multiplying the daily inhalation or oral dose, by a cancer potency factor, the age sensitivity factor, the frequency of time spent at home and the exposure duration divided by averaging time, to yield the excess cancer risk. As described below, the excess cancer risk is calculated separately for each age grouping and then summed to yield cancer risk for any given location. Specific factors within the project models are provided in

15 Ldn Consulting, Inc. 11/4/24 22-124 Armorlite Lofts 225 Air Quality Attachment C to this report. The worst case cancer risk calculation is defined in Equation 2 below (OEHHA, 2015).

Equation 2 RISKinh-res=DOSEair × CPF × ASF × ED/AT × FAH

RISKinh-res = Residential i nhalation cancer risk
DOSEair = Dail y inhalation dose (mg/kg-day)
CPF = Inhalation cancer potency factor (mg/kg-day
-1
)
ASF = Age sensitivity factor for a specified age group (unitless) ED = Exposure duration (in years) for a specified age group AT = Averaging time for lifetime cancer risk (years)
FAH = Fraction of time spent at home (unitless)

Office of Environmental Health Hazard Assessment (OEHHA) recommends that an exposure duration (residency time) of 30 years be used to estimate individual cancer risk for the Maximally Exposed Individual Resident (MEIR) . OEHHA also recommends that the 30-year exposure duration be used as the basis for public notification and risk reduction audits and plans. Exposure durations of 9-years and 70-years are also recommended to be evaluated for the MEIR to show the range of cancer risk based on residency periods. If a facility is notifying the public regarding cancer risk, the 9-and 70-year cancer risk estimates are useful for people who have resided in their current residence for periods shorter and longer than 30 years.

It should be noted that for construction acti vities, the exposure duration would be over a short-term duration or a duration limited to the Construction Duration. Because of this, it is recommended that the risk assessment look at the exposure age group bins most affected during construction.

Chronic Non-Cancer risks are also known with respect to diesel particulate matter (DPM) and are determined by the hazard index. To calculate hazard index, DPM concentration is divided by its chronic Reference Exposure Levels (REL). Where the total equals or exceeds one, a health hazard is presumed to exist. RELs are published by the Office of Environmental Health Hazard Assessment (OEHHA, February 201 5). Diesel Exhaust has a REL of 5 μg/m 3 and
targets the respiratory system.

3.2 Construction Assumptions

The project would start grading sometime in 2026 with residential construction to start shortly thereafter. Grading would consist of approximately 6,950 CY of cut material and 4,400 CY of fill material. Based on discussions with the en gineer, shrinkage would be expected and the total export expected would be approximately 2,250 CY of material. Assuming use of 15 CY trucks and 15 work days, this equates to approximately 10 truck trips per day. During grading,

16 Ldn Consulting, Inc. 11/4/24 22-124 Armorlite Lofts 225 Air Quality blasting and rock crushing may be required. For this analysis it was assumed both blasting and crushing would be required. The rock crusher assumed to be used during blasting would be similar to the Terex 4242SR 310 HP unit and is further specified in Attachment D to this report.

Earthwork associated with grading within Ca lEEMod uses a “Grading Equipment Passes” methodology which has been approved by SCAQMD in consultation with building estimator references and is used as the basis of emissi on generation (CAPCOA, 2021). As a design feature, the project’s construc tion contractor will utilize Tier IV rated diesel construction equipment to minimize diesel particulates fr om construction equipment. Table 3.1 below describes the construction equipment and durations.

Table 3.1: Expected Construction Equipment
Equipment Identification Proposed Start Proposed Complete Quantity Site Preparation 1/1/2026 1/5/2026
Graders 1
Scrapers 1
Tractors/Loaders/Backhoes 1
Grading 1/4/2026 2/1/2026
Graders 1
Rubber Tired Dozers 1
Tractors/Loaders/Backhoes 2
Rock Crusher 1
Building Construction 2/2/2026 12/4/2026
Cranes 1
Forklifts 2
Generator Sets 1
Tractors/Loaders/Backhoes 1
Welders 3
Paving 11/14/2026 11/27/2026
Tractors/Loaders/Backhoes 1
Pavers 1
Paving Equipment 1
Rollers 2
Cement and Mortar Mixers 1
Architectural Coating 8/15/2026 12/4/2026
Air Compressors 1
This equipment list is based upon equipment inventory within CalEEMod. The quantity and types are based upon assumptions provided by the project applicant.

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The project is assumed to require some blasti ng and crushing during the earthwork/grading of the project site. During blasting operatio ns, grading operations would temporarily stop and resume once blasting is completed. Per co nversations with the project Civil Engineer, it i s e x p e c t e d t h a t e a c h b l a s t , l i m i t e d t o o n c e a d a y , w o u l d a l s o b e l i m i t e d t o s i x t o n s o f ammonium nitrate for any given blast operation. The area of each blast would be limited to 20,000 SF or (100-foot x 200-foot) area.

Blasting operations usually require a chemical material that is capable of extremely rapid combustion resulting in an explosion or detona tion. These materials are usually mixtures of several ingredients but are often oxygen deficient as combustion reactions take place which causes a formation of carbon monoxide and to a lesser extent, nitrogen oxides. For ammonium nitrate and fuel oil (ANFO) mixtures it is expected that carbon monoxide would be generated in quantities of 67 pounds (lbs) per every ton of explosives and nitrogen oxides would be generated at 17 lbs per the same quantity as indicate in Table 13.3-1 of the EPA’s AP-42: Compilation of Air Emissions Factors from Stationary Sources (EPA, 1980). Particulate matter will also be generated from blasting and can be estimated usin g Table 11.9-1 of the aforementioned document (EPA, 1998) using the following equation:

𝑃𝑀
ଵ଴(𝑙𝑏/𝐵𝑙𝑎𝑠𝑡) = 0.000014 ∗ (𝐵𝑙𝑎𝑠𝑡𝐴𝑟𝑒𝑎(𝑓𝑡ଶ)) ∗ 0.52

3.3 Operational Emissions

Once construction is completed the proposed project would generate emissions from daily operations which would include sources such as Area, Energy and Mobile uses, which are also calculated within CalEEMod. Area Sources include consumer products, landscaping and architectural coatings as part of regular ma intenance. Energy sources would be from uses such as onsite natural gas and electrical use. Mobile uses are from the expected project traffic trip generations. The operational model results are also shown in Attachment A at the end of this report.

The CalEEMod calculations include the following assumptions:

• The traffic inputs for CalEEMod were adjusted to be consistent with the proposed project traffic study. Based on that study, the proposed project would generate 1,214 net average daily trips (LL&G Engineers, 2023).
• Default trip distances within CalEEMod were utilized. • It was assumed that an average of 10% of the structural surface area will be re-painted each year.
• Since the proposed project would not be installing hearth options, CalEEMod default hearth settings were modified to represent no hearth options. • CalEEMod includes landscaping and consumer product assumptions which would apply to this project. Consumer product emissions are generated by a wide range of product

18 Ldn Consulting, Inc. 11/4/24 22-124 Armorlite Lofts 225 Air Quality categories, including air fresheners, automotive products, household cleaners, and personal care products. Emissions associated with these products primarily depend on the increased population associated with residential development (512 residents).

3.4 Odor Impacts

Potential onsite odor generators would include short-term construction odors from activities such as paving and possibly painting. Given this, short-term construction odors would not be considered a significant impact. Also, since the project is a residential / commercial retail development, a less than signif icant operational odor impact is expected. This is largely because the uses proposed by the project would not meet typical uses generating odors which CARB outlines in their Land Use Handbook which include:
• Sewage Treatment Plants
• Landfills
• Recycling Facilities
• Waste Transfer Stations
• Petroleum Refineries
• Biomass Operations
• Autobody Shops
• Coating Operations
• Fiberglass Manufacturing
• Foundries
• Rendering Plants
• Livestock Operations

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4.0 FINDINGS

4.1 Construction Findings

The project would start grading in 2026 and all building construction would be completed by late 2027. The project would require export of approximately 2,250 CY of soil. The following design features were assumed within the CalEEMod analysis:

•
Construction Design Feature 1: all heav y diesel construction equipment will be classified as Tier IV.
• Best Management Practice 1: Comply with SDAPCD’s fugitive dust rules and fugitive dust control measures which will be provided by the City of San Marcos.

Table 4.1 shows the expected construction emissions. Based on the cumulative totals, Air Quality impacts would not be expected.

Table 4.1: Expected Construction Emissions Summary (Pounds/Day) Year ROG NOx CO SO2
PM10
(Dust)
PM10
(Exhaust)
PM10
(Total)
PM2.5
(Dust)
PM2.5
(Exhaust)
PM2.5
(Total)
2026 14.3 8.22 31.7 0.07 0.16 9.76 9.92 0.14 3.89 4.03
Blasting
Emissions
(calculations
shown in text
below)
102 402 20.59 20.59
Construction
Total w/
Blasting
(Maximum)

14.3 110.22 433.7 0.07 20.75 9.76 30.51 0.14 3.89 4.03
Screening
Level
Threshold
(lb/day)
75 250 550 250 - - 100 - - 55
SDAPCD
Impact? No No No No - - No - - No

During blasting operations, grading operations wo uld stop and it is expected that each blast operation could require between 10,000 - 12,0 00 lbs of Ammonium Nitrate. The proposed project would utilize approximately 6 tons of ammonium nitrate per a blast which would generate up to 402 lbs (67 lbs/ton * 6 tons) of carbon monoxide and up to 102 lbs (17 lbs/ton * 6 tons) of nitrogen oxides during a blast utilizing 6 tons of ammonium nitrate. These quantities would be additive to the mass grading operations for the entire project site and

20 Ldn Consulting, Inc. 11/4/24 22-124 Armorlite Lofts 225 Air Quality

could be added to the worst-case mass grading daily CO and NO x output. Additional particulates derived from each blast is estimated over a 20,000 SF area roughly 100-foot by 200-foot in dimension as identified in Section 3.2 above. Given this, it is estimated that each blast would generate 20.59 lb/blast as is shown in the equation below:

𝑃𝑀ଵ଴(𝑙𝑏/𝐵𝑙𝑎𝑠𝑡) = 0.000014 ∗ (20,000𝑓𝑡ଶ)ଵ.ହ ∗ 0.52 = 20.59( 𝑙𝑏/𝑏𝑙𝑎𝑠𝑡)

It should be noted, a blasting permit is required from the San Marcos Fire Department which would include required terms and should limit the blasting material to 6 tons per day as this was indicated by the project Civil Engineer through communication as the expected blast charge. Since 6 tons per day is utilized, this would be a condition of approval.

4.2 Health Risk

Based upon the air quality modeling, worst-case onsite PM 10 from onsite construction exhaust
would cumulatively produce 0.006 tons over the construction duration (337-calendar days) or an average of 1.87x10
-4 grams/second. Utilizing the AERSCREEN dispersion model, the peak maximum 1-hr concentration is 0.537 µg/m 3 during the worst-case construction period.

Converting the peak 1-hr concentration to an annual concentration by multiplying it by 0.08 (US EPA, 1992) yields an annual concentration of 0.0429 µg/m3. Therefore, utilizing the risk equation identified above in Section 3.1, the inhalation cancer risk is 6.04 per million over the construction duration. This risk would be expressed at the point of maximum exposure 50 meters away (164 feet) as predicted by AERSCREEN and shown in the model outputs provided within Attachment B. As a condition of project approval, the project would be required to utilize Tier 4 diesel equipment. Since the th reshold is 10 per million exposed with T-BACT installed, the project would have a less than significant impact and would be in compliance with the City’s thresholds.

It should be noted that sensit ive residential receptors are adjacent to the project site less than 100 feet from the easter n property line. Since the maxi mum risk is 6.04 per million exposed (and the threshold is 10 per million), all sensitive receptors would have cancer risks at or less than 6.04 per million exposed which would also represent a less than significant impact.

There are known chronic health risks associated with diesel exhaust which are considered non-cancer risks. These risks are calculated based on methods identified in Section 3.1 of this report. From this, we find that the hourly concentration of 0.537 µg/m 3 divided by the REL of
5 µg/m3 yields a Health Hazard Index of 0.107, wh ich is less than one. Therefore, based on thresholds for non-cancer risks in Section 3.1 above, non-cancer health risks are considered less than significant.

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4.3 Odor Impact Findings

Potential onsite odor generators would include short-term construction odors from activities such as paving and possibly painting. Given this, short-term construction odors would not be considered an impact. Also, the proposed project would not be expected to generate odors during operation since the project is a comme rcial/residential develo pment. Odor impacts would be less than significant.

4.4 Operational Findings

The proposed project would generate 1,214 daily trips (LL&G Engi neers, 2023) once the proposed project is fully operational. This assumption has been incorporated into the CalEEMod file. The expected daily pollutant generation can be calculated utilizing the product of the average daily miles traveled and the expected emissions inventory calculated by CalEEMod and can be seen in Table 4.2.. Based upon these calculations, the proposed project would not generate operational air quality impacts.

Table 4.2: Daily Pollutant Generation
ROG NOx CO SOx PM10 PM2.5
Summer Scenario
Mobile Emission Estimates
(Lb/Day) 4.52 2.82 29.7 0.07 6.30 1.63
Area Source Emission Estimates
(Lb/Day) 5.20 0.12 12.90 < 0.005 0.01 0.01
Energy Emission Estimates
(Lb/Day) 0.02 0.30 0.13 < 0.005 0.02 0.02
Total (Lb/Day) 9.73 3.24 42.7 0.07 6.34 1.67
Screening Level Thresholds 75 250 550 250 100 55
Significant? No No No No No No
Winter Scenario
Mobile Emission Estimates
(Lb/Day) 4.42 3.10 28.40 0.07 6.30 1.63
Area Source Emission Estimates
(Lb/Day) 3.80 0 0 0 0 0
Energy Emission Estimates
(Lb/Day) 0.02 0.30 0.13 < 0.005 0.02 0.02
Total (Lb/Day) 8.24 3.40 28.50 0.07 6.33 1.66
Screening Level Thresholds 75 250 550 250 100 55
Significant? No No No No No No
Daily pollutant generation assumes trip distances within CalEEMod Outputs from CalEEMod include rounding and may not add up exactly

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4.5 Cumulative Impacts

The proposed project seeks to construct a 165-unit multi-family residential facility and 5,600 SF of commercial use. The project seeks a GPA and to rezone the property from P-I to SPA for the proposed mixed-use development. The P-I land use is typically used for any type of public use, including schools, hospitals, civi c centers etc. The allowable use onsite per the zoning could have a maximum floor area ratio (FAR) of 3.0. Based on this, any facility which could be constructed onsite would be limited to approximately 318,000 SF. Vehicular trip generation of public institutions like schools or hospitals would result in significantly more traffic than the 1,214 trips that the proposed project would generate and would therefore generate larger quantities of operational ai r quality emissions. Based on SANDAG’s trip generation guide a hospital can generate as many as 25 trips per 1,000 SF or over 7,000 trips for a project of this size (SANDAG, 2002). Since the largest component of air quality emissions are typically derived from vehicular trips, development under the proposed project would be considered less intense.

Another potential use for the site could be to install a 160,000 SF data center or larger if multiple stories are constructe d. Data centers are recognized as very high consumers of electrical energy. For example, a 413,000 SF data center in Santa Clara was found to consume 665,750 megawatt hours (MWH) or 1.61 MWH/SF/year (Ramboll Environ, 2016). Based on this, a 160,000 SF building would require at least 257,600 MWH annually. Based on modeling, the proposed project would only consume 907 MWH which is over 285 times less energy and significantly less intense from an energy usage standpoint and though electrical energy isn’t directly estimated in this air quality analysis , a reduction in energy would generate fewer offsite air quality emissions which could be expe cted within the utility provider’s electrical generation.

Finally, cumulative construction impact could be expected if construction of the proposed project and potentially a hypothetical project in the immediate vicinity. An impact would exist if the cumulative totals of both projects when added together exceed the screening significance thresholds. Based on discussion s with the applicant, no large construction projects are expected to occur simultaneous ly and within the immediate vicinity to the proposed project. Because of this, a less than significant cumulative construction impact would be expected.

Given this, the site development plan would be less intense in terms of air quality than would otherwise be allowed within the P-I General Plan land use. Therefore, the project would not conflict with the RAQS or the State’s air quality SIP.

4.6 Conclusion of Findings

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During construction of the proposed project, fugitive dust emissions would be expected during grading and equipment usage. However, these emissions would not exceed City thresholds and would not be considered an impact. In addition, the project was found to have less than significant odor and health risks during construction. Finally, since no significant construction projects are expected near the project site , cumulative construction impacts would be considered less than significant.

The project has been designed and planned by incorporating design elements and best management practices which are a condition of approval to the project as shown below:

•
Construction Design Feature 1: all heav y diesel construction equipment will be classified as Tier IV.
• Blasting would be limited to 6 tons of blast explosives per day. • Best Management Practice 1: Comply with SDAPCD’s fugitive dust rules and fugitive dust control measures which will be provided by the City of San Marcos.

Additionally, emissions would be generated fr om project operations which include mobile, energy, and area sources. Significant impacts are not expected during operations. This analysis assumes the project would not install hearth options within the development.

Operational impacts were also estimated and we r e f o u n d t o b e l e s s t h a n s i g n i f i c a n t . I n addition, since the residential/commercial development would not be expected to generate operational odors and a less than significant odor impacts are expected during operations.

The proposed project seeks to construct a 165-unit multi-family residential facility with 5,600 SF of retail (1,214 ADT). The existing site allows for up to 318,000 SF of public facilities, such as a school, hospital, or civic center per the General Plan, or a 160,000 SF data center, which could consume up to 285 times more energy than the proposed project. These uses, allowed under the current General Plan designation, could generate significantly more air quality emissions than the proposed project but would still be consistent with the P-I zoning category.

Therefore, the proposed project is considered less intense. Consequently, the SPA development plan would be less intense than wh at is allowed under the current zoning as defined by the General Plan. This means the project would not conflict with the County’s Regional RAQS or the State’s air quality SIP. Since no direct impacts are expected, the project would not generate cumulative operational impacts.

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5.0 REFERENCES

California Air Resources Board. (05/04/2016). www.arb.ca.gov. Retrieved from Ambient Air Quality Standards: http://www.arb.ca.gov/research/aaqs/aaqs2.pdf CAPCOA. (2021). CalEEMod Verision 2020.4.0 Calcuation Details (Appendix A). Retrieved from http://www.aqmd.gov/docs/default-source/caleemod/user-guide- 2021/appendix-a2020-4-0.pdf?sfvrsn=6
CARB. (2022). 2022 Scoping Plan for Achieving Carbon Neutrality. Retrieved from https://ww2.arb.ca.gov/sites/default/files/2023-04/2022-sp.pdf CARB. (2023). https://ww2.arb.ca.gov. Retrieved from Sulfate and Health:
https://ww2.arb.ca.gov/resources/sulfate-and-health
CARB. (2023). https://ww2.arb.ca.gov. Retrieved from
https://ww2.arb.ca.gov/resources/vinyl-chloride-and-health CARB. (2023). https://ww2.arb.ca.gov. Retrieved from Hydrogen Sulfide & Health:
https://ww2.arb.ca.gov/resources/hydrogen-sulfide-and-health CARB. (2023). https://ww2.arb.ca.gov. Retrieved from Visibility reducing particles and health: https://ww2.arb.ca.gov/resources/visibility-reducing-particles-and-health CR Associates. (2022). Capalina Development Transportation Analysis.

EPA. (2022, AUG 9). https://www.epa.gov. Retrieved 2023, from Criteria Air Pollutants:
https://www.epa.gov/criteria-air-pollutants
EPA. (2022). https://www.epa.gov/. Retrieved from What is carbon monoxide?:
https://www.epa.gov/indoor-air-quality-iaq/what-carbon- monoxide#:~:text=Carbon%20monoxide%20(CO)%20is%20a,soluble%20in%2 0alcohol%20and%20benzene.

EPA. (2022). https://www.epa.gov/. Retrieved from Learn about Lead:
https://www.epa.gov/lead/learn-about-lead#lead
EPA. (2022). https://www.epa.gov/. Retrieved from What is NO2 and how does it get in the air?
EPA. (2022). https://www.epa.gov/. Retrieved from What is PM, and how does it get into the air?: https://www.epa.gov/pm-pollution/particulate-matter-pm-basics#PM EPA, U. (1995). EPA-AP 42, Fifth Edition Compilation of Air Pollutant Emission Factors. US EPA. Retrieved from www.epa.gov/ttn/chief/ap42/ch13/final/c13s03.pdf Google. (2023). Retrieved 2023, from maps.google.com
Google Earth Pro. (2023).

LL&G Engineers. (2023).

LOCAL TRANSPORTATION ANALYSIS - ARMORLITE LOFTS.

OEHHA. (2015). Risk Assessment Guidelines - Guidance Manual for Preparation of Health Risk Assessments. OEHHHA. Retrieved from
http://oehha.ca.gov/air/hot_spots/2015/2015GuidanceManual.pdf

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OEHHA. (February 2015). Air Toxics Hot Spots Program - Risk Assessment Guidelines - Guidance Manual for Preparation of Health Risk Assessments. OEHHA.

Ramboll Environ. (2016). Air Qulaity and Greenhouse Gas Techical Report - Vantage Data Centers. Retrieved from
https://www.santaclaraca.gov/home/showpublisheddocument/51024/636228593 762170000
SANDAG. (2002). (Not So) Brief Guide of Vehicular Traffic Generation Rates for the San Diego Region. Retrieved from
https://www.sandiegocounty.gov/content/dam/sdc/pds/ceqa/LehmanTPM/38%2 0Appendix%20T9_SANDAG%20Trip%20Generation%20Rates.pdf
SDAPCD. (2022). 5 year air quality summary report. Retrieved April 14, 2016, from https://www.sdapcd.org/content/dam/sdapcd/documents/monitoring/5-Year-Air- Quality.pdf
SDAPCD. (2023). Retrieved 2018, from
https://www.sdapcd.org/content/sdapcd/planning/attainment-status.html Summa Architecture. (2024). Conceptual Site Plan.

US EPA. (1992). Screening Procedures for Estimating the Air Quality Impact of Stationary Sources Revised . US EPA. Retrieved from
http://www.epa.gov/scram001/guidance/guide/EPA-454R-92-019_OCR.pdf WRCC. (2018). Retrieved from
https://wrcc.dri.edu/Climate/comp_table_show.php?stype=wind_dir_avg WRCC. (2021). ESCONDIDO, CALIFORNIA (042862). Retrieved from https://wrcc.dri.edu/summary/Climsmsca.html: https://wrcc.dri.edu/cgi- bin/cliMAIN.pl?ca2862

ATTACHMENT A

CalEEMod

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Armorlite Lofts 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 Y ear, Unmitigated

2.4. Operations Emissions Compared Against Thresholds

2.5. Operations Emissions by Sector, Unmitigated

3. Construction Emissions Details

3.1. Site Preparation (2026) - Unmitigated

3.3. Grading (2026) - Unmitigated

3.5. Building Construction (2026) - Unmitigated

3.7. Paving (2026) - Unmitigated
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3.9. 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
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5.6. Dust Mitigation

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
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5.13.1. Unmitigated

5.14. Operational Refrigeration and Air Conditioning Equipment

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
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6.1. Climate Risk Summary

6.2. Initial Climate Risk Scores

6.3. Adjusted Climate Risk Scores

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 Armorlite Lofts
Construction Start Date 1/1/2025
Operational Y ear 2027
Lead Agency —
Land Use Scale Project/site
Analysis Level for Defaults County
Windspeed (m/s) 2.20
Precipitation (days) 20.4
Location 225 N Las Posas Rd, San Marcos, CA 92069, USA
County San Diego
City San Marcos
Air District San Diego County APCD
Air Basin San Diego
TAZ 6297
EDFZ 12
Electric Utility San Diego Gas & Electric
Gas Utility San Diego Gas & Electric
App Version 2022.1.1.21

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
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Apartments Mid Rise 165 Dwelling Unit 1.00 158,400 0.25 — 512 — Strip Mall 5.60 1000sqft 0.44 5,600 0.25 — — —
Enclosed Parking
with
Elevator
189 Space 0.50 75,600 0.25 — — —
Parking Lot 65.0 Space 0.50 0.00 0.25 — — —

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 PM10D PM10T PM2.5E PM2.5D PM2.5T BCO2 NBCO2 CO2T CH4 N2O CO2e Daily,
Summer
(Max)
— — — — — — — — — — — — — — — —
Unmit. 13.8 6.29 22.1 0.03 0.08 1.74 1.82 0.08 0.42 0.49 — 4,794 4,794 0.20 0.19 4,863 Daily,
Winter
(Max)
— — — — — — — — — — — — — — — —
Unmit. 14.3 8.22 31.8 0.07 0.16 9.78 9.94 0.14 3.89 4.03 — 8,831 8,831 0.39 0.61 9,022 Average
Daily
(Max)
— — — — — — — — — — — — — — — —
Unmit. 3.37 3.60 13.2 0.02 0.04 1.37 1.41 0.04 0.42 0.46 — 2,942 2,942 0.13 0.12 2,984 Annual
(Max)
— — — — — — — — — — — — — — — —
Unmit. 0.61 0.66 2.41 < 0.005 0.01 0.25 0.26 0.01 0.08 0.08 — 487 487 0.02 0.02 494 Armorlite Lofts Detailed Report, 3/1/2024
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2.2. Construction Emissions by Y ear, Unmitigated
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual) Y ear ROG NOx CO SO2 PM10E PM10D PM10T PM2.5E PM2.5D PM2.5T BCO2 NBCO2 CO2T CH4 N2O CO2e Daily -
Summer
(Max)
— — — — — — — — — — — — — — — —
2026 13.8 6.29 22.1 0.03 0.08 1.74 1.82 0.08 0.42 0.49 — 4,794 4,794 0.20 0.19 4,863 Daily -
Winter
(Max)
— — — — — — — — — — — — — — — —
2026 14.3 8.22 31.8 0.07 0.16 9.78 9.94 0.14 3.89 4.03 — 8,831 8,831 0.39 0.61 9,022 Average
Daily
— — — — — — — — — — — — — — — —
2026 3.37 3.60 13.2 0.02 0.04 1.37 1.41 0.04 0.42 0.46 — 2,942 2,942 0.13 0.12 2,984 Annual — — — — — — — — — — — — — — — —
2026 0.61 0.66 2.41 < 0.005 0.01 0.25 0.26 0.01 0.08 0.08 — 487 487 0.02 0.02 494

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 PM10D PM10T PM2.5E PM2.5D PM2.5T BCO2 NBCO2 CO2T CH4 N2O CO2e Daily,
Summer
(Max)
— — — — — — — — — — — — — — — —
Unmit. 9.73 3.24 42.7 0.07 0.09 6.25 6.34 0.08 1.58 1.67 88.2 7,746 7,834 9.32 0.32 8,186 Daily,
Winter
(Max)
— — — — — — — — — — — — — — — —
Unmit. 8.24 3.40 28.5 0.07 0.08 6.25 6.33 0.07 1.58 1.66 88.2 7,389 7,477 9.34 0.34 7,814 Average
Daily
(Max)
— — — — — — — — — — — — — — — —
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Unmit. 8.87 3.41 34.7 0.07 0.08 6.17 6.25 0.08 1.56 1.64 88.2 7,456 7,544 9.34 0.34 7,889 Annual
(Max)
— — — — — — — — — — — — — — — —
Unmit. 1.62 0.62 6.34 0.01 0.02 1.13 1.14 0.01 0.29 0.30 14.6 1,234 1,249 1.55 0.06 1,306

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 PM10D PM10T PM2.5E PM2.5D PM2.5T BCO2 NBCO2 CO2T CH4 N2O CO2e Daily,
Summer
(Max)
— — — — — — — — — — — — — — — —
Mobile 4.52 2.82 29.7 0.07 0.05 6.25 6.30 0.05 1.58 1.63 — 7,207 7,207 0.35 0.28 7,322 Area 5.20 0.12 12.9 < 0.005 0.01 — 0.01 0.01 — 0.01 0.00 39.6 39.6 < 0.005 < 0.005 39.7 Energy 0.02 0.30 0.13 < 0.005 0.02 — 0.02 0.02 — 0.02 — 494 494 0.12 0.01 500 Water — — — — — — — — — — 11.9 5.22 17.1 1.22 0.03 56.5 Waste — — — — — — — — — — 76.3 0.00 76.3 7.63 0.00 267
Refrig. — — — — — — — — — — — — — — — 1.17
Total 9.73 3.24 42.7 0.07 0.09 6.25 6.34 0.08 1.58 1.67 88.2 7,746 7,834 9.32 0.32 8,186 Daily,
Winter
(Max)
— — — — — — — — — — — — — — — —
Mobile 4.42 3.10 28.4 0.07 0.05 6.25 6.30 0.05 1.58 1.63 — 6,889 6,889 0.38 0.30 6,989 Area 3.80 0.00 0.00 0.00 0.00 — 0.00 0.00 — 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Energy 0.02 0.30 0.13 < 0.005 0.02 — 0.02 0.02 — 0.02 — 494 494 0.12 0.01 500 Water — — — — — — — — — — 11.9 5.22 17.1 1.22 0.03 56.5 Waste — — — — — — — — — — 76.3 0.00 76.3 7.63 0.00 267
Refrig. — — — — — — — — — — — — — — — 1.17
Total 8.24 3.40 28.5 0.07 0.08 6.25 6.33 0.07 1.58 1.66 88.2 7,389 7,477 9.34 0.34 7,814 Armorlite Lofts Detailed Report, 3/1/2024
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————————————————Average
Daily
Mobile 4.37 3.05 28.2 0.07 0.05 6.17 6.22 0.05 1.56 1.61 — 6,937 6,937 0.37 0.30 7,044 Area 4.49 0.06 6.36 < 0.005 0.01 — 0.01 < 0.005 — < 0.005 0.00 19.5 19.5 < 0.005 < 0.005 19.6 Energy 0.02 0.30 0.13 < 0.005 0.02 — 0.02 0.02 — 0.02 — 494 494 0.12 0.01 500 Water — — — — — — — — — — 11.9 5.22 17.1 1.22 0.03 56.5 Waste — — — — — — — — — — 76.3 0.00 76.3 7.63 0.00 267
Refrig. — — — — — — — — — — — — — — — 1.17
Total 8.87 3.41 34.7 0.07 0.08 6.17 6.25 0.08 1.56 1.64 88.2 7,456 7,544 9.34 0.34 7,889 Annual — — — — — — — — — — — — — — — —
Mobile 0.80 0.56 5.15 0.01 0.01 1.13 1.14 0.01 0.29 0.29 — 1,149 1,149 0.06 0.05 1,166 Area 0.82 0.01 1.16 < 0.005 < 0.005 — < 0.005 < 0.005 — < 0.005 0.00 3.23 3.23 < 0.005 < 0.005 3.24 Energy < 0.005 0.06 0.02 < 0.005 < 0.005 — < 0.005 < 0.005 — < 0.005 — 81.8 81.8 0.02 < 0.005 82.8 Water — — — — — — — — — — 1.97 0.87 2.84 0.20 < 0.005 9.36 Waste — — — — — — — — — — 12.6 0.00 12.6 1.26 0.00 44.2 Refrig. — — — — — — — — — — — — — — — 0.19
Total 1.62 0.62 6.34 0.01 0.02 1.13 1.14 0.01 0.29 0.30 14.6 1,234 1,249 1.55 0.06 1,306

3. Construction Emissions Details

3.1. Site Preparation (2026) - Unmitigated
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual) Location ROG NOx CO SO2 PM10E PM10D PM10T PM2.5E PM2.5D PM2.5T BCO2 NBCO2 CO2T CH4 N2O CO2e Onsite — — — — — — — — — — — — — — — —
Daily,
Summer
(Max)
— — — — — — — — — — — — — — — —
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————————————————Daily,
Winter
(Max)
Off-Road
Equipment

0.26 1.33 15.0 0.03 0.05 — 0.05 0.05 — 0.05 — 2,716 2,716 0.11 0.02 2,725 Dust From
Mater
ial
Movement
— — — — — 1.61 1.61 — 0.17 0.17 — — — — — —
Onsite
tr
uck

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 — 0.00 0.00 0.00 0.00 0.00 Average
Daily
— — — — — — — — — — — — — — — —
Off-Road
Equipment
< 0.005 0.01 0.12 < 0.005 < 0.005 — < 0.005 < 0.005 — < 0.005 — 22.3 22.3 < 0.005 < 0.005 22.4 Dust From
Mater
ial
Movement
— — — — — 0.01 0.01 — < 0.005 < 0.005 — — — — — —
Onsite
tr
uck

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 — 0.00 0.00 0.00 0.00 0.00 Annual — — — — — — — — — — — — — — — —
Off-Road
Equipment
< 0.005 < 0.005 0.02 < 0.005 < 0.005 — < 0.005 < 0.005 — < 0.005 — 3.70 3.70 < 0.005 < 0.005 3.71 Dust From
Mater
ial
Movement
— — — — — < 0.005 < 0.005 — < 0.005 < 0.005 — — — — — — Onsite
tr
uck

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 — 0.00 0.00 0.00 0.00 0.00 Offsite — — — — — — — — — — — — — — — —
Daily,
Summer
(Max)
— — — — — — — — — — — — — — — —
Daily,
Winter
(Max)
— — — — — — — — — — — — — — — —
Worker 0.03 0.02 0.29 0.00 0.00 0.06 0.06 0.00 0.01 0.01 — 65.8 65.8 < 0.005 < 0.005 66.7 Armorlite Lofts Detailed Report, 3/1/2024
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Vendor 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 — 0.00 0.00 0.00 0.00 0.00 Hauling 0.06 3.92 1.46 0.02 0.06 0.77 0.83 0.04 0.21 0.25 — 2,932 2,932 0.15 0.47 3,076 Average
Daily
— — — — — — — — — — — — — — — —
Worker < 0.005 < 0.005 < 0.005 0.00 0.00 < 0.005 < 0.005 0.00 < 0.005 < 0.005 — 0.55 0.55 < 0.005 < 0.005 0.55 Vendor 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 — 0.00 0.00 0.00 0.00 0.00 Hauling < 0.005 0.03 0.01 < 0.005 < 0.005 0.01 0.01 < 0.005 < 0.005 < 0.005 — 24.1 24.1 < 0.005 < 0.005 25.3 Annual — — — — — — — — — — — — — — — —
Worker < 0.005 < 0.005 < 0.005 0.00 0.00 < 0.005 < 0.005 0.00 < 0.005 < 0.005 — 0.09 0.09 < 0.005 < 0.005 0.09 Vendor 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 — 0.00 0.00 0.00 0.00 0.00 Hauling < 0.005 0.01 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 — 3.99 3.99 < 0.005 < 0.005 4.19

3.3. Grading (2026) - Unmitigated
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual) Location ROG NOx CO SO2 PM10E PM10D PM10T PM2.5E PM2.5D PM2.5T BCO2 NBCO2 CO2T CH4 N2O CO2e Onsite — — — — — — — — — — — — — — — —
Daily,
Summer
(Max)
— — — — — — — — — — — — — — — —
Daily,
Winter
(Max)
— — — — — — — — — — — — — — — —
Off-Road
Equipment

0.23 1.20 14.2 0.02 0.05 — 0.05 0.05 — 0.05 — 2,455 2,455 0.10 0.02 2,463 Dust From
Mater
ial
Movement
— — — — — 7.09 7.09 — 3.43 3.43 — — — — — —
Onsite
tr
uck

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 — 0.00 0.00 0.00 0.00 0.00 Average
Daily
— — — — — — — — — — — — — — — —
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Off-Road
Equipment

0.01 0.07 0.78 < 0.005 < 0.005 — < 0.005 < 0.005 — < 0.005 — 135 135 0.01 < 0.005 135 Dust From
Mater
ial
Movement
— — — — — 0.39 0.39 — 0.19 0.19 — — — — — —
Onsite
tr
uck

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 — 0.00 0.00 0.00 0.00 0.00 Annual — — — — — — — — — — — — — — — —
Off-Road
Equipment
< 0.005 0.01 0.14 < 0.005 < 0.005 — < 0.005 < 0.005 — < 0.005 — 22.3 22.3 < 0.005 < 0.005 22.3 Dust From
Mater
ial
Movement
— — — — — 0.07 0.07 — 0.03 0.03 — — — — — —
Onsite
tr
uck

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 — 0.00 0.00 0.00 0.00 0.00 Offsite — — — — — — — — — — — — — — — —
Daily,
Summer
(Max)
— — — — — — — — — — — — — — — —
Daily,
Winter
(Max)
— — — — — — — — — — — — — — — —
Worker 0.04 0.04 0.48 0.00 0.00 0.11 0.11 0.00 0.02 0.02 — 110 110 0.01 < 0.005 111 Vendor 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 — 0.00 0.00 0.00 0.00 0.00 Hauling 0.01 0.74 0.28 < 0.005 0.01 0.15 0.16 0.01 0.04 0.05 — 552 552 0.03 0.09 580 Average
Daily
— — — — — — — — — — — — — — — —
Worker < 0.005 < 0.005 0.03 0.00 0.00 0.01 0.01 0.00 < 0.005 < 0.005 — 6.07 6.07 < 0.005 < 0.005 6.16 Vendor 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 — 0.00 0.00 0.00 0.00 0.00 Hauling < 0.005 0.04 0.02 < 0.005 < 0.005 0.01 0.01 < 0.005 < 0.005 < 0.005 — 30.3 30.3 < 0.005 < 0.005 31.8 Annual — — — — — — — — — — — — — — — —
Worker < 0.005 < 0.005 < 0.005 0.00 0.00 < 0.005 < 0.005 0.00 < 0.005 < 0.005 — 1.00 1.00 < 0.005 < 0.005 1.02 Armorlite Lofts Detailed Report, 3/1/2024
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Vendor 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 — 0.00 0.00 0.00 0.00 0.00 Hauling < 0.005 0.01 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 — 5.01 5.01 < 0.005 < 0.005 5.26

3.5. Building Construction (2026) - Unmitigated
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual) Location ROG NOx CO SO2 PM10E PM10D PM10T PM2.5E PM2.5D PM2.5T BCO2 NBCO2 CO2T CH4 N2O CO2e Onsite — — — — — — — — — — — — — — — —
Daily,
Summer
(Max)
— — — — — — — — — — — — — — — —
Off-Road
Equipment

0.24 3.74 12.8 0.02 0.04 — 0.04 0.04 — 0.04 — 2,201 2,201 0.09 0.02 2,208 Onsite
tr
uck

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 — 0.00 0.00 0.00 0.00 0.00 Daily,
Winter
(Max)
— — — — — — — — — — — — — — — —
Off-Road
Equipment

0.24 3.74 12.8 0.02 0.04 — 0.04 0.04 — 0.04 — 2,201 2,201 0.09 0.02 2,208 Onsite
tr
uck

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 — 0.00 0.00 0.00 0.00 0.00 Average
Daily
— — — — — — — — — — — — — — — —
Off-Road
Equipment

0.14 2.25 7.69 0.01 0.02 — 0.02 0.02 — 0.02 — 1,327 1,327 0.05 0.01 1,331 Onsite
tr
uck

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 — 0.00 0.00 0.00 0.00 0.00 Annual — — — — — — — — — — — — — — — —
Off-Road
Equipment

0.03 0.41 1.40 < 0.005 < 0.005 — < 0.005 < 0.005 — < 0.005 — 220 220 0.01 < 0.005 220 Onsite
tr
uck

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 — 0.00 0.00 0.00 0.00 0.00 Armorlite Lofts Detailed Report, 3/1/2024
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Offsite — — — — — — — — — — — — — — — —
Daily,
Summer
(Max)
— — — — — — — — — — — — — — — —
Worker 0.55 0.42 6.59 0.00 0.00 1.29 1.29 0.00 0.30 0.30 — 1,416 1,416 0.07 0.05 1,438 Vendor 0.03 0.98 0.46 0.01 0.01 0.20 0.21 0.01 0.05 0.07 — 760 760 0.03 0.11 795 Hauling 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 — 0.00 0.00 0.00 0.00 0.00 Daily,
Winter
(Max)
— — — — — — — — — — — — — — — —
Worker 0.54 0.48 5.81 0.00 0.00 1.29 1.29 0.00 0.30 0.30 — 1,337 1,337 0.07 0.05 1,355 Vendor 0.02 1.02 0.47 0.01 0.01 0.20 0.21 0.01 0.05 0.07 — 761 761 0.03 0.11 794 Hauling 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 — 0.00 0.00 0.00 0.00 0.00 Average
Daily
— — — — — — — — — — — — — — — —
Worker 0.32 0.28 3.54 0.00 0.00 0.77 0.77 0.00 0.18 0.18 — 813 813 0.04 0.03 825 Vendor 0.02 0.61 0.28 < 0.005 0.01 0.12 0.12 0.01 0.03 0.04 — 458 458 0.02 0.07 479 Hauling 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 — 0.00 0.00 0.00 0.00 0.00 Annual — — — — — — — — — — — — — — — —
Worker 0.06 0.05 0.65 0.00 0.00 0.14 0.14 0.00 0.03 0.03 — 135 135 0.01 0.01 137 Vendor < 0.005 0.11 0.05 < 0.005 < 0.005 0.02 0.02 < 0.005 0.01 0.01 — 75.9 75.9 < 0.005 0.01 79.3 Hauling 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 — 0.00 0.00 0.00 0.00 0.00

3.7. 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 PM10D PM10T PM2.5E PM2.5D PM2.5T BCO2 NBCO2 CO2T CH4 N2O CO2e Onsite — — — — — — — — — — — — — — — —
Daily,
Summer
(Max)
— — — — — — — — — — — — — — — —
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Daily,
Winter
(Max)
— — — — — — — — — — — — — — — —
Off-Road
Equipment

0.13 1.77 8.32 0.01 0.02 — 0.02 0.02 — 0.02 — 1,244 1,244 0.05 0.01 1,248 Paving 0.26 — — — — — — — — — — — — — — —
Onsite
tr
uck

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 — 0.00 0.00 0.00 0.00 0.00 Average
Daily
— — — — — — — — — — — — — — — —
Off-Road
Equipment
< 0.005 0.05 0.23 < 0.005 < 0.005 — < 0.005 < 0.005 — < 0.005 — 34.1 34.1 < 0.005 < 0.005 34.2 Paving 0.01 — — — — — — — — — — — — — — —
Onsite
tr
uck

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 — 0.00 0.00 0.00 0.00 0.00 Annual — — — — — — — — — — — — — — — —
Off-Road
Equipment
< 0.005 0.01 0.04 < 0.005 < 0.005 — < 0.005 < 0.005 — < 0.005 — 5.64 5.64 < 0.005 < 0.005 5.66 Paving < 0.005 — — — — — — — — — — — — — — —
Onsite
tr
uck

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 — 0.00 0.00 0.00 0.00 0.00 Offsite — — — — — — — — — — — — — — — —
Daily,
Summer
(Max)
— — — — — — — — — — — — — — — —
Daily,
Winter
(Max)
— — — — — — — — — — — — — — — —
Worker 0.05 0.05 0.57 0.00 0.00 0.13 0.13 0.00 0.03 0.03 — 132 132 0.01 0.01 133 Vendor 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 — 0.00 0.00 0.00 0.00 0.00 Hauling 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 — 0.00 0.00 0.00 0.00 0.00 Average
Daily
— — — — — — — — — — — — — — — —
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Worker < 0.005 < 0.005 0.02 0.00 0.00 < 0.005 < 0.005 0.00 < 0.005 < 0.005 — 3.64 3.64 < 0.005 < 0.005 3.69 Vendor 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 — 0.00 0.00 0.00 0.00 0.00 Hauling 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 — 0.00 0.00 0.00 0.00 0.00 Annual — — — — — — — — — — — — — — — —
Worker < 0.005 < 0.005 < 0.005 0.00 0.00 < 0.005 < 0.005 0.00 < 0.005 < 0.005 — 0.60 0.60 < 0.005 < 0.005 0.61 Vendor 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 — 0.00 0.00 0.00 0.00 0.00 Hauling 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 — 0.00 0.00 0.00 0.00 0.00

3.9. 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 PM10D PM10T PM2.5E PM2.5D PM2.5T BCO2 NBCO2 CO2T CH4 N2O CO2e Onsite — — — — — — — — — — — — — — — —
Daily,
Summer
(Max)
— — — — — — — — — — — — — — — —
Off-Road
Equipment

0.02 1.07 0.96 < 0.005 0.03 — 0.03 0.03 — 0.03 — 134 134 0.01 < 0.005 134 Architectu
r
al
Coatings

12.9 — — — — — — — — — — — — — — —
Onsite
tr
uck

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 — 0.00 0.00 0.00 0.00 0.00 Daily,
Winter
(Max)
— — — — — — — — — — — — — — — —
Off-Road
Equipment

0.02 1.07 0.96 < 0.005 0.03 — 0.03 0.03 — 0.03 — 134 134 0.01 < 0.005 134 Architectu
r
al
Coatings

12.9 — — — — — — — — — — — — — — —
Onsite
tr
uck

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 — 0.00 0.00 0.00 0.00 0.00 Armorlite Lofts Detailed Report, 3/1/2024
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Average
Daily
— — — — — — — — — — — — — — — —
Off-Road
Equipment
< 0.005 0.23 0.21 < 0.005 0.01 — 0.01 0.01 — 0.01 — 29.3 29.3 < 0.005 < 0.005 29.4 Architectu
r
al
Coatings

2.83 — — — — — — — — — — — — — — —
Onsite
tr
uck

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 — 0.00 0.00 0.00 0.00 0.00 Annual — — — — — — — — — — — — — — — —
Off-Road
Equipment
< 0.005 0.04 0.04 < 0.005 < 0.005 — < 0.005 < 0.005 — < 0.005 — 4.84 4.84 < 0.005 < 0.005 4.86 Architectu
r
al
Coatings

0.52 — — — — — — — — — — — — — — —
Onsite
tr
uck

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 — 0.00 0.00 0.00 0.00 0.00 Offsite — — — — — — — — — — — — — — — —
Daily,
Summer
(Max)
— — — — — — — — — — — — — — — —
Worker 0.11 0.08 1.32 0.00 0.00 0.26 0.26 0.00 0.06 0.06 — 283 283 0.01 0.01 288 Vendor 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 — 0.00 0.00 0.00 0.00 0.00 Hauling 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 — 0.00 0.00 0.00 0.00 0.00 Daily,
Winter
(Max)
— — — — — — — — — — — — — — — —
Worker 0.11 0.10 1.16 0.00 0.00 0.26 0.26 0.00 0.06 0.06 — 267 267 0.01 0.01 271 Vendor 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 — 0.00 0.00 0.00 0.00 0.00 Hauling 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 — 0.00 0.00 0.00 0.00 0.00 Average
Daily
— — — — — — — — — — — — — — — —
Worker 0.02 0.02 0.26 0.00 0.00 0.06 0.06 0.00 0.01 0.01 — 59.1 59.1 < 0.005 < 0.005 60.0 Armorlite Lofts Detailed Report, 3/1/2024
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Vendor 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 — 0.00 0.00 0.00 0.00 0.00 Hauling 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 — 0.00 0.00 0.00 0.00 0.00 Annual — — — — — — — — — — — — — — — —
Worker < 0.005 < 0.005 0.05 0.00 0.00 0.01 0.01 0.00 < 0.005 < 0.005 — 9.79 9.79 < 0.005 < 0.005 9.94 Vendor 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 — 0.00 0.00 0.00 0.00 0.00 Hauling 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 — 0.00 0.00 0.00 0.00 0.00

4. Operations Emissions Details

4.1. Mobile Emissions by Land Use

4.1.1. Unmitigated
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual) Land Use ROG NOx CO SO2 PM10E PM10D PM10T PM2.5E PM2.5D PM2.5T BCO2 NBCO2 CO2T CH4 N2O CO2e Daily,
Summer
(Max)
— — — — — — — — — — — — — — — —
Apartment
s
Mid
Rise

3.65 2.23 23.4 0.06 0.04 4.88 4.93 0.04 1.24 1.28 — 5,642 5,642 0.28 0.22 5,732 Strip Mall 0.87 0.59 6.26 0.02 0.01 1.36 1.37 0.01 0.35 0.36 — 1,565 1,565 0.07 0.06 1,590 Enclosed
P
arking
with
Elevator

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 — 0.00 0.00 0.00 0.00 0.00 Parking
Lot

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 — 0.00 0.00 0.00 0.00 0.00 Total 4.52 2.82 29.7 0.07 0.05 6.25 6.30 0.05 1.58 1.63 — 7,207 7,207 0.35 0.28 7,322 Daily,
Winter
(Max)
— — — — — — — — — — — — — — — —
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Apartment
Mid
Rise

3.57 2.45 22.4 0.05 0.04 4.88 4.93 0.04 1.24 1.28 — 5,393 5,393 0.30 0.24 5,472 Strip Mall 0.85 0.65 5.91 0.01 0.01 1.36 1.37 0.01 0.35 0.36 — 1,496 1,496 0.08 0.06 1,517 Enclosed
P
arking
with
Elevator

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 — 0.00 0.00 0.00 0.00 0.00 Parking
Lot

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 — 0.00 0.00 0.00 0.00 0.00 Total 4.42 3.10 28.4 0.07 0.05 6.25 6.30 0.05 1.58 1.63 — 6,889 6,889 0.38 0.30 6,989 Annual — — — — — — — — — — — — — — — —
Apartment
s
Mid
Rise

0.64 0.44 4.08 0.01 0.01 0.88 0.89 0.01 0.22 0.23 — 899 899 0.05 0.04 913 Strip Mall 0.15 0.12 1.08 < 0.005 < 0.005 0.25 0.25 < 0.005 0.06 0.06 — 249 249 0.01 0.01 253 Enclosed
P
arking
with
Elevator

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 — 0.00 0.00 0.00 0.00 0.00 Parking
Lot

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 — 0.00 0.00 0.00 0.00 0.00 Total 0.80 0.56 5.15 0.01 0.01 1.13 1.14 0.01 0.29 0.29 — 1,149 1,149 0.06 0.05 1,166

4.2. Energy

4.2.1. Electricity Emissions By Land Use - Unmitigated
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual) Land Use ROG NOx CO SO2 PM10E PM10D PM10T PM2.5E PM2.5D PM2.5T BCO2 NBCO2 CO2T CH4 N2O CO2e Daily,
Summer
(Max)
— — — — — — — — — — — — — — — —
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72.20.010.0569.169.1———————————Apartment
s
Mid Rise
Strip Mall — — — — — — — — — — — 6.10 6.10 < 0.005 < 0.005 6.37 Enclosed
P
arking
with
Elevator
— — — — — — — — — — — 34.5 34.5 0.03 < 0.005 36.0
Parking
Lot
— — — — — — — — — — — 2.36 2.36 < 0.005 < 0.005 2.46
Total — — — — — — — — — — — 112 112 0.08 0.01 117
Daily,
Winter
(Max)
— — — — — — — — — — — — — — — —
Apartment
s
Mid
Rise
— — — — — — — — — — — 69.1 69.1 0.05 0.01 72.2
Strip Mall — — — — — — — — — — — 6.10 6.10 < 0.005 < 0.005 6.37 Enclosed
P
arking
with
Elevator
— — — — — — — — — — — 34.5 34.5 0.03 < 0.005 36.0
Parking
Lot
— — — — — — — — — — — 2.36 2.36 < 0.005 < 0.005 2.46
Total — — — — — — — — — — — 112 112 0.08 0.01 117
Annual — — — — — — — — — — — — — — — —
Apartment
s
Mid
Rise
— — — — — — — — — — — 11.4 11.4 0.01 < 0.005 12.0
Strip Mall — — — — — — — — — — — 1.01 1.01 < 0.005 < 0.005 1.05 Enclosed
P
arking
with
Elevator
— — — — — — — — — — — 5.71 5.71 < 0.005 < 0.005 5.96
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0.41< 0.005< 0.0050.390.39———————————Parking
Lot
Total — — — — — — — — — — — 18.6 18.6 0.01 < 0.005 19.4

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 PM10D PM10T PM2.5E PM2.5D PM2.5T BCO2 NBCO2 CO2T CH4 N2O CO2e Daily,
Summer
(Max)
— — — — — — — — — — — — — — — —
Apartment
s
Mid
Rise

0.02 0.29 0.13 < 0.005 0.02 — 0.02 0.02 — 0.02 — 374 374 0.03 < 0.005 375 Strip Mall < 0.005 0.01 0.01 < 0.005 < 0.005 — < 0.005 < 0.005 — < 0.005 — 7.77 7.77 < 0.005 < 0.005 7.79 Enclosed
P
arking
with
Elevator

0.00 0.00 0.00 0.00 0.00 — 0.00 0.00 — 0.00 — 0.00 0.00 0.00 0.00 0.00 Parking
Lot

0.00 0.00 0.00 0.00 0.00 — 0.00 0.00 — 0.00 — 0.00 0.00 0.00 0.00 0.00 Total 0.02 0.30 0.13 < 0.005 0.02 — 0.02 0.02 — 0.02 — 382 382 0.03 < 0.005 383 Daily,
Winter
(Max)
— — — — — — — — — — — — — — — —
Apartment
s
Mid
Rise

0.02 0.29 0.13 < 0.005 0.02 — 0.02 0.02 — 0.02 — 374 374 0.03 < 0.005 375 Strip Mall < 0.005 0.01 0.01 < 0.005 < 0.005 — < 0.005 < 0.005 — < 0.005 — 7.77 7.77 < 0.005 < 0.005 7.79 Enclosed
P
arking
with
Elevator

0.00 0.00 0.00 0.00 0.00 — 0.00 0.00 — 0.00 — 0.00 0.00 0.00 0.00 0.00 Parking
Lot

0.00 0.00 0.00 0.00 0.00 — 0.00 0.00 — 0.00 — 0.00 0.00 0.00 0.00 0.00 Armorlite Lofts Detailed Report, 3/1/2024
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Total 0.02 0.30 0.13 < 0.005 0.02 — 0.02 0.02 — 0.02 — 382 382 0.03 < 0.005 383 Annual — — — — — — — — — — — — — — — —
Apartment
s
Mid
Rise
< 0.005 0.05 0.02 < 0.005 < 0.005 — < 0.005 < 0.005 — < 0.005 — 62.0 62.0 0.01 < 0.005 62.1 Strip Mall < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 — < 0.005 < 0.005 — < 0.005 — 1.29 1.29 < 0.005 < 0.005 1.29 Enclosed
P
arking
with
Elevator

0.00 0.00 0.00 0.00 0.00 — 0.00 0.00 — 0.00 — 0.00 0.00 0.00 0.00 0.00 Parking
Lot

0.00 0.00 0.00 0.00 0.00 — 0.00 0.00 — 0.00 — 0.00 0.00 0.00 0.00 0.00 Total < 0.005 0.06 0.02 < 0.005 < 0.005 — < 0.005 < 0.005 — < 0.005 — 63.3 63.3 0.01 < 0.005 63.4

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 PM10D PM10T PM2.5E PM2.5D PM2.5T BCO2 NBCO2 CO2T CH4 N2O CO2e Daily,
Summer
(Max)
— — — — — — — — — — — — — — — —
Hearths 0.00 0.00 0.00 0.00 0.00 — 0.00 0.00 — 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Consumer
Products

3.51 — — — — — — — — — — — — — — —
Architectu
r
al
Coatings

0.28 — — — — — — — — — — — — — — —
Landscap
e
Equipmen
t

1.40 0.12 12.9 < 0.005 0.01 — 0.01 0.01 — 0.01 — 39.6 39.6 < 0.005 < 0.005 39.7 Total 5.20 0.12 12.9 < 0.005 0.01 — 0.01 0.01 — 0.01 0.00 39.6 39.6 < 0.005 < 0.005 39.7 Armorlite Lofts Detailed Report, 3/1/2024
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Daily,
Winter
(Max)
— — — — — — — — — — — — — — — —
Hearths 0.00 0.00 0.00 0.00 0.00 — 0.00 0.00 — 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Consumer
Products

3.51 — — — — — — — — — — — — — — —
Architectu
r
al
Coatings

0.28 — — — — — — — — — — — — — — —
Total 3.80 0.00 0.00 0.00 0.00 — 0.00 0.00 — 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Annual — — — — — — — — — — — — — — — —
Hearths 0.00 0.00 0.00 0.00 0.00 — 0.00 0.00 — 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Consumer
Products

0.64 — — — — — — — — — — — — — — —
Architectu
r
al
Coatings

0.05 — — — — — — — — — — — — — — —
Landscap
e
Equipmen
t

0.13 0.01 1.16 < 0.005 < 0.005 — < 0.005 < 0.005 — < 0.005 — 3.23 3.23 < 0.005 < 0.005 3.24 Total 0.82 0.01 1.16 < 0.005 < 0.005 — < 0.005 < 0.005 — < 0.005 0.00 3.23 3.23 < 0.005 < 0.005 3.24

4.4. Water Emissions by Land Use

4.4.1. Unmitigated
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual) Land Use ROG NOx CO SO2 PM10E PM10D PM10T PM2.5E PM2.5D PM2.5T BCO2 NBCO2 CO2T CH4 N2O CO2e Daily,
Summer
(Max)
— — — — — — — — — — — — — — — —
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52.70.031.1416.04.8811.1——————————Apartment
s
Mid Rise
Strip Mall — — — — — — — — — — 0.79 0.35 1.14 0.08 < 0.005 3.77 Enclosed
P
arking
with
Elevator
— — — — — — — — — — 0.00 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 Parking
Lot
— — — — — — — — — — 0.00 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 Total — — — — — — — — — — 11.9 5.22 17.1 1.22 0.03 56.5 Daily,
Winter
(Max)
— — — — — — — — — — — — — — — —
Apartment
s
Mid
Rise
— — — — — — — — — — 11.1 4.88 16.0 1.14 0.03 52.7
Strip Mall — — — — — — — — — — 0.79 0.35 1.14 0.08 < 0.005 3.77 Enclosed
P
arking
with
Elevator
— — — — — — — — — — 0.00 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 Parking
Lot
— — — — — — — — — — 0.00 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 Total — — — — — — — — — — 11.9 5.22 17.1 1.22 0.03 56.5 Annual — — — — — — — — — — — — — — — —
Apartment
s
Mid
Rise
— — — — — — — — — — 1.84 0.81 2.65 0.19 < 0.005 8.73
Strip Mall — — — — — — — — — — 0.13 0.06 0.19 0.01 < 0.005 0.62 Enclosed
P
arking
with
Elevator
— — — — — — — — — — 0.00 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 Armorlite Lofts Detailed Report, 3/1/2024
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< 0.005< 0.005< 0.005< 0.005< 0.0050.00——————————Parking Lot
Total — — — — — — — — — — 1.97 0.87 2.84 0.20 < 0.005 9.36

4.5. Waste Emissions by Land Use

4.5.1. Unmitigated
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual) Land Use ROG NOx CO SO2 PM10E PM10D PM10T PM2.5E PM2.5D PM2.5T BCO2 NBCO2 CO2T CH4 N2O CO2e Daily,
Summer
(Max)
— — — — — — — — — — — — — — — —
Apartment
s
Mid
Rise
— — — — — — — — — — 73.1 0.00 73.1 7.31 0.00 256
Strip Mall — — — — — — — — — — 3.17 0.00 3.17 0.32 0.00 11.1 Enclosed
P
arking
with
Elevator
— — — — — — — — — — 0.00 0.00 0.00 0.00 0.00 0.00
Parking
Lot
— — — — — — — — — — 0.00 0.00 0.00 0.00 0.00 0.00
Total — — — — — — — — — — 76.3 0.00 76.3 7.63 0.00 267
Daily,
Winter
(Max)
— — — — — — — — — — — — — — — —
Apartment
s
Mid
Rise
— — — — — — — — — — 73.1 0.00 73.1 7.31 0.00 256
Strip Mall — — — — — — — — — — 3.17 0.00 3.17 0.32 0.00 11.1 Armorlite Lofts Detailed Report, 3/1/2024
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0.000.000.000.000.000.00——————————Enclosed
P
arking
with
Elevator
Parking
Lot
— — — — — — — — — — 0.00 0.00 0.00 0.00 0.00 0.00
Total — — — — — — — — — — 76.3 0.00 76.3 7.63 0.00 267
Annual — — — — — — — — — — — — — — — —
Apartment
s
Mid
Rise
— — — — — — — — — — 12.1 0.00 12.1 1.21 0.00 42.4
Strip Mall — — — — — — — — — — 0.52 0.00 0.52 0.05 0.00 1.84 Enclosed
P
arking
with
Elevator
— — — — — — — — — — 0.00 0.00 0.00 0.00 0.00 0.00
Parking
Lot
— — — — — — — — — — 0.00 0.00 0.00 0.00 0.00 0.00
Total — — — — — — — — — — 12.6 0.00 12.6 1.26 0.00 44.2

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 PM10D PM10T PM2.5E PM2.5D PM2.5T BCO2 NBCO2 CO2T CH4 N2O CO2e Daily,
Summer
(Max)
— — — — — — — — — — — — — — — —
Apartment
s
Mid
Rise
— — — — — — — — — — — — — — — 1.13
Strip Mall — — — — — — — — — — — — — — — 0.03
Total — — — — — — — — — — — — — — — 1.17
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Daily,
Winter
(Max)
— — — — — — — — — — — — — — — —
Apartment
s
Mid
Rise
— — — — — — — — — — — — — — — 1.13
Strip Mall — — — — — — — — — — — — — — — 0.03
Total — — — — — — — — — — — — — — — 1.17
Annual — — — — — — — — — — — — — — — —
Apartment
s
Mid
Rise
— — — — — — — — — — — — — — — 0.19
Strip Mall — — — — — — — — — — — — — — — 0.01
Total — — — — — — — — — — — — — — — 0.19

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) Equipmen
t
T
ype
ROG NOx CO SO2 PM10E PM10D PM10T PM2.5E PM2.5D PM2.5T BCO2 NBCO2 CO2T CH4 N2O CO2e Daily,
Summer
(Max)
— — — — — — — — — — — — — — — —
Total — — — — — — — — — — — — — — — —
Daily,
Winter
(Max)
— — — — — — — — — — — — — — — —
Total — — — — — — — — — — — — — — — —
Annual — — — — — — — — — — — — — — — —
Total — — — — — — — — — — — — — — — —
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4.8. Stationary Emissions By Equipment Type

4.8.1. Unmitigated
Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual) Equipmen
t
T
ype
ROG NOx CO SO2 PM10E PM10D PM10T PM2.5E PM2.5D PM2.5T BCO2 NBCO2 CO2T CH4 N2O 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) Equipmen
t
T
ype
ROG NOx CO SO2 PM10E PM10D PM10T PM2.5E PM2.5D PM2.5T BCO2 NBCO2 CO2T CH4 N2O CO2e Daily,
Summer
(Max)
— — — — — — — — — — — — — — — —
Total — — — — — — — — — — — — — — — —
Daily,
Winter
(Max)
— — — — — — — — — — — — — — — —
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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 PM10D PM10T PM2.5E PM2.5D PM2.5T BCO2 NBCO2 CO2T CH4 N2O CO2e Daily,
Summer
(Max)
— — — — — — — — — — — — — — — —
Total — — — — — — — — — — — — — — — —
Daily,
Winter
(Max)
— — — — — — — — — — — — — — — —
Total — — — — — — — — — — — — — — — —
Annual — — — — — — — — — — — — — — — —
Total — — — — — — — — — — — — — — — —

4.10.2. Above and Belowground Carbon Accumulation by Land Use Type - Unmitigated Criteria Pollutants (lb/day for daily, ton/yr for annual) and GHGs (lb/day for daily, MT/yr for annual) Land Use ROG NOx CO SO2 PM10E PM10D PM10T PM2.5E PM2.5D PM2.5T BCO2 NBCO2 CO2T CH4 N2O CO2e Daily,
Summer
(Max)
— — — — — — — — — — — — — — — —
Total — — — — — — — — — — — — — — — —
Daily,
Winter
(Max)
— — — — — — — — — — — — — — — —
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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 PM10D PM10T PM2.5E PM2.5D PM2.5T BCO2 NBCO2 CO2T CH4 N2O CO2e Daily,
Summer
(Max)
— — — — — — — — — — — — — — — —
Avoided — — — — — — — — — — — — — — — —
Subtotal — — — — — — — — — — — — — — — —
Sequester
ed
— — — — — — — — — — — — — — — —
Subtotal — — — — — — — — — — — — — — — —
Removed — — — — — — — — — — — — — — — —
Subtotal — — — — — — — — — — — — — — — —
— — — — — — — — — — — — — — — — —
Daily,
Winter
(Max)
— — — — — — — — — — — — — — — —
Avoided — — — — — — — — — — — — — — — —
Subtotal — — — — — — — — — — — — — — — —
Sequester
ed
— — — — — — — — — — — — — — — —
Subtotal — — — — — — — — — — — — — — — —
Removed — — — — — — — — — — — — — — — —
Subtotal — — — — — — — — — — — — — — — —
— — — — — — — — — — — — — — — — —
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Annual — — — — — — — — — — — — — — — —
Avoided — — — — — — — — — — — — — — — —
Subtotal — — — — — — — — — — — — — — — —
Sequester
ed
— — — — — — — — — — — — — — — —
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 Site Preparation Site Preparation 1/1/2026 1/5/2026 5.00 3.00 — Grading Grading 1/4/2026 2/1/2026 5.00 20.0 —
Building Construction Building Construction 2/2/2026 12/4/2026 5.00 220 — Paving Paving 11/14/2026 11/27/2026 5.00 10.0 —
Architectural Coating Architectural Coating 8/15/2026 12/04/2026 5.00 80.0 —

5.2. Off-Road Equipment

5.2.1. Unmitigated
Phase Name Equipment Type Fuel Type Engine Tier Number per Day Hours Per Day Horsepower Load Factor Site Preparation Graders Diesel Tier 4 Final 1.00 8.00 148 0.41 Site Preparation Scrapers Diesel Tier 4 Final 1.00 8.00 423 0.48 Armorlite Lofts Detailed Report, 3/1/2024
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0.3784.07.001.00Tier 4 FinalDieselSite Preparation Tractors/Loaders/Backh oes
Grading Graders Diesel Tier 4 Final 1.00 8.00 148 0.41
Grading Rubber Tired Dozers Diesel Tier 4 Final 1.00 8.00 367 0.40 Grading Tractors/Loaders/Backh
oes
Diesel Tier 4 Final 2.00 7.00 84.0 0.37
Grading Crushing/Proc.

Equipment
Diesel Tier 4 Final 1.00 6.00 310 0.41
Building Construction Cranes Diesel Tier 4 Final 1.00 8.00 367 0.29 Building Construction Forklifts Diesel Tier 4 Final 2.00 7.00 82.0 0.20 Building Construction Generator Sets Diesel Tier 4 Final 1.00 8.00 14.0 0.74 Building Construction Tractors/Loaders/Backh
oes
Diesel Tier 4 Final 1.00 6.00 84.0 0.37
Building Construction Welders Diesel Tier 4 Final 3.00 8.00 46.0 0.45 Paving Tractors/Loaders/Backh
oes
Diesel Tier 4 Final 1.00 8.00 84.0 0.37
Paving Pavers Diesel Tier 4 Final 1.00 8.00 81.0 0.42
Paving Paving Equipment Diesel Tier 4 Final 1.00 8.00 89.0 0.36 Paving Rollers Diesel Tier 4 Final 2.00 8.00 36.0 0.38
Paving Cement and Mortar
Mix
ers
Diesel Tier 4 Final 1.00 8.00 10.0 0.56
Architectural Coating Air Compressors Diesel Tier 4 Interim 1.00 6.00 37.0 0.48

5.3. Construction Vehicles

5.3.1. Unmitigated
Phase Name Trip Type One-Way Trips per Day Miles per Trip Vehicle Mix Site Preparation — — — —
Site Preparation Worker 7.50 12.0 LDA,LDT1,LDT2
Site Preparation Vendor — 7.63 HHDT,MHDT
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Site Preparation Hauling 41.7 20.0 HHDT
Site Preparation Onsite truck — — HHDT
Grading — — — —
Grading Worker 12.5 12.0 LDA,LDT1,LDT2
Grading Vendor — 7.63 HHDT,MHDT
Grading Hauling 7.85 20.0 HHDT
Grading Onsite truck — — HHDT
Building Construction — — — —
Building Construction Worker 152 12.0 LDA,LDT1,LDT2
Building Construction Vendor 30.9 7.63 HHDT,MHDT
Building Construction Hauling 0.00 20.0 HHDT
Building Construction Onsite truck — — HHDT
Paving — — — —
Paving Worker 15.0 12.0 LDA,LDT1,LDT2
Paving Vendor — 7.63 HHDT,MHDT
Paving Hauling 0.00 20.0 HHDT
Paving Onsite truck — — HHDT
Architectural Coating — — — —
Architectural Coating Worker 30.5 12.0 LDA,LDT1,LDT2
Architectural Coating Vendor — 7.63 HHDT,MHDT
Architectural Coating Hauling 0.00 20.0 HHDT
Architectural Coating Onsite truck — — HHDT

5.4. Vehicles

5.4.1. Construction Vehicle Control Strategies
Non-applicable. No control strategies activated by user.

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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 320,760 106,920 9,380 2,909 2,614

5.6. Dust Mitigation

5.6.1. Construction Earthmoving Activities
Phase Name Material Imported (Cubic Y ards) Material Exported (Cubic Y ards) Acres Graded (acres) Material Demolished (sq. ft.) Acres Paved (acres) Site Preparation — 1,000 4.50 0.00 —
Grading — 1,250 5.00 0.00 —
Paving 0.00 0.00 0.00 0.00 1.00

5.6.2. Construction Earthmoving Control Strategies
Non-applicable. No control strategies activated by user.

5.7. Construction Paving
Land Use Area Paved (acres) % Asphalt
Apartments Mid Rise — 0%
Strip Mall 0.00 0%
Enclosed Parking with Elevator 0.50 100%
Parking Lot 0.50 100%

5.8. Construction Electricity Consumption and Emissions Factors kWh per Y ear and Emission Factor (lb/MWh)
Y ear kWh per Y ear CO2 CH4 N2O
2026 0.00 45.1 0.03 < 0.005
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5.9. Operational Mobile Sources

5.9.1. Unmitigated
Land Use Type Trips/Weekday Trips/Saturday Trips/Sunday Trips/Y ear VMT/Weekday VMT/Saturday VMT/Sunday VMT/Y ear Apartments Mid Rise 990 990 990 361,350 6,916 6,916 6,916 2,524,178 Strip Mall 224 224 224 81,760 1,930 1,930 1,930 704,309 Enclosed Parking
with
Elevator

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
Parking Lot 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

5.10.1.1. Unmitigated
Hearth Type Unmitigated (number)
Apartments Mid Rise —
Wood Fireplaces 0
Gas Fireplaces 0
Propane Fireplaces 0
Electric Fireplaces 0
No Fireplaces 165
Conventional Wood Stoves 0
Catalytic Wood Stoves 0
Non-Catalytic Wood Stoves 0
Pellet Wood Stoves 0
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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)
320760 106,920 9,380 2,909 2,614

5.10.3. Landscape Equipment
Season Unit Value
Snow Days day/yr 0.00
Summer Days day/yr 180

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) Apartments Mid Rise 559,494 45.1 0.0330 0.0040 1,167,942 Strip Mall 49,362 45.1 0.0330 0.0040 24,234
Enclosed Parking with Elevator 279,072 45.1 0.0330 0.0040 0.00 Parking Lot 19,079 45.1 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) Apartments Mid Rise 5,796,957 4.57
Strip Mall 414,806 3.74
Enclosed Parking with Elevator 0.00 3.74
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Parking Lot 0.00 3.74

5.13. Operational Waste Generation

5.13.1. Unmitigated
Land Use Waste (ton/year) Cogeneration (kWh/year)
Apartments Mid Rise 136 —
Strip Mall 5.88 —
Enclosed Parking with Elevator 0.00 —
Parking Lot 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 Apartments Mid Rise Average room A/C &
Other
residential A/C
and heat pumps
R-410A 2,088 < 0.005 2.50 2.50 10.0
Apartments Mid Rise Household refrigerators
and/or
freezers
R-134a 1,430 0.12 0.60 0.00 1.00
Strip Mall Other commercial A/C
and
heat pumps
R-410A 2,088 < 0.005 4.00 4.00 18.0
Strip Mall Stand-alone retail
refr
igerators and
freezers
R-134a 1,430 0.04 1.00 0.00 1.00
Strip Mall Walk-in refrigerators
and
freezers
R-404A 3,922 < 0.005 7.50 7.50 20.0

5.15. Operational Off-Road Equipment
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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 Y ear Horsepower Load Factor

5.16.2. Process Boilers
Equipment Type Fuel Type Number Boiler Rating (MMBtu/hr) Daily Heat Input (MMBtu/day) Annual Heat Input (MMBtu/yr)

5.17. User Defined
Equipment Type Fuel Type

5.18. Vegetation

5.18.1. Land Use Change

5.18.1.1. Unmitigated
Vegetation Land Use Type Vegetation Soil Type Initial Acres Final Acres

5.18.1. Biomass Cover Type

5.18.1.1. Unmitigated
Biomass Cover Type Initial Acres Final Acres
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5.18.2. Sequestration

5.18.2.1. Unmitigated
Tree Type Number Electricity Saved (kWh/year) Natural Gas Saved (btu/year)

6. Climate Risk Detailed Report

6.1. Climate Risk Summary
Cal-Adapt midcentury 2040–2059 average projections for four hazards are reported below for your project location. These are under Representation Concentration Pathway (RCP) 8.5 which assumes GHG emissions
will continue to rise strongly through 2050 and then plateau around 2100.

Climate Hazard Result for Project Location Unit
Temperature and Extreme Heat 11.0 annual days of extreme heat Extreme Precipitation 3.95 annual days with precipitation above 20 mm Sea Level Rise — meters of inundation depth
Wildfire 7.44 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 histor
ical 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 da
y 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 in
undation 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, v
egetation, 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 N/A N/A N/A N/A
Extreme Precipitation N/A N/A N/A N/A
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Sea Level Rise 1 0 0 N/A
Wildfire 1 0 0 N/A
Flooding 0 0 0 N/A
Drought N/A N/A N/A N/A
Snowpack Reduction N/A N/A N/A N/A
Air Quality Degradation N/A N/A N/A 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 e
xposure.

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 g
reatest ability to adapt.

The overall vulnerability scores are calculated based on the potential impacts and adaptive capacity assessments for each hazard. Scores do not include implementation of climate risk reduction measures.

6.3. Adjusted Climate Risk Scores
Climate Hazard Exposure Score Sensitivity Score Adaptive Capacity Score Vulnerability Score Temperature and Extreme Heat N/A N/A N/A N/A
Extreme Precipitation N/A N/A N/A N/A
Sea Level Rise 1 1 1 2
Wildfire 1 1 1 2
Flooding 1 1 1 2
Drought N/A N/A N/A N/A
Snowpack Reduction N/A N/A N/A N/A
Air Quality Degradation N/A N/A N/A 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 e
xposure.

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 g
reatest 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
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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 42.6
AQ-PM 28.1
AQ-DPM 76.8
Drinking Water 24.2
Lead Risk Housing 39.5
Pesticides 35.7
Toxic Releases 27.8
Traffic 61.5
Effect Indicators —
CleanUp Sites 78.6
Groundwater 67.5
Haz Waste Facilities/Generators 82.7
Impaired Water Bodies 43.8
Solid Waste 96.6
Sensitive Population —
Asthma 3.22
Cardio-vascular 14.1
Low Birth Weights 40.5
Socioeconomic Factor Indicators —
Education 78.3
Housing 82.8
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Linguistic 77.9
Poverty 78.2
Unemployment 36.4

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 14.57718465
Employed 17.95200821
Median HI 15.05196972
Education —
Bachelor's or higher 34.96727833
High school enrollment 100
Preschool enrollment 1.873476197
Transportation —
Auto Access 7.878865649
Active commuting 68.52303349
Social —
2-parent households 81.04709355
Voting 41.66559733
Neighborhood —
Alcohol availability 17.16925446
Park access 56.96137559
Retail density 84.51174131
Supermarket access 77.74926216
Tree canopy 38.40626203
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Housing —
Homeownership 8.623123316
Housing habitability 19.36353137
Low-inc homeowner severe housing cost burden 79.81521879 Low-inc renter severe housing cost burden 64.18580778
Uncrowded housing 31.19466188
Health Outcomes —
Insured adults 5.902733222
Arthritis 9.2
Asthma ER Admissions 99.1
High Blood Pressure 21.8
Cancer (excluding skin) 21.2
Asthma 30.0
Coronary Heart Disease 3.1
Chronic Obstructive Pulmonary Disease 5.5
Diagnosed Diabetes 18.3
Life Expectancy at Birth 13.9
Cognitively Disabled 11.9
Physically Disabled 7.5
Heart Attack ER Admissions 99.6
Mental Health Not Good 25.4
Chronic Kidney Disease 2.7
Obesity 34.9
Pedestrian Injuries 81.7
Physical Health Not Good 17.6
Stroke 5.6
Health Risk Behaviors —
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Binge Drinking 68.3
Current Smoker 35.6
No Leisure Time for Physical Activity 16.4
Climate Change Exposures —
Wildfire Risk 0.0
SLR Inundation Area 0.0
Children 16.3
Elderly 23.2
English Speaking 15.1
Foreign-born 80.3
Outdoor Workers 11.8
Climate Change Adaptive Capacity —
Impervious Surface Cover 47.4
Traffic Density 77.2
Traffic Access 23.0
Other Indices —
Hardship 72.9
Other Decision Support —
2016 Voting 49.7

7.3. Overall Health & Equity Scores
Metric Result for Project Census Tract
CalEnviroScreen 4.0 Score for Project Location (a) 59.0 Healthy Places Index Score for Project Location (b) 15.0 Project Located in a Designated Disadvantaged Community (Senate Bill 535) No Project Located in a Low-Income Community (Assembly Bill 1550) Y es Project Located in a Community Air Protection Program Community (Assembly Bill 617) No Armorlite Lofts Detailed Report, 3/1/2024
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a: The maximum CalEnviroScreen score is 100. A high score (i.e., greater than 50) reflects a higher pollution burden compared to other census tracts in the state. b: The maximum Health Places Index score is 100. A high score (i.e., greater than 50) reflects healthier community conditions compared to other census tracts in the state.

7.4. Health & Equity Measures
No Health & Equity Measures selected.

7.5. Evaluation Scorecard
Health & Equity Evaluation Scorecard not completed.

7.6. Health & Equity Custom Measures
No Health & Equity Custom Measures created.

8. User Changes to Default Data
Screen Justification
Land Use Total Area is 2.44 acres - 254 Parking Spaces
Construction: Construction Phases Estimated Construction Schedule Construction: Off-Road Equipment Design Feature to use Tier 4 final equipment Operations: Vehicle Data Updated to reflect the TS
Operations: Hearths no hearth options installed
Construction: Off-Road Equipment EF crusher equipment similar to scraper equipment and was updated since no defaults were provided by CalEEMod
Construction: Dust From Material Movement Updated to reflect PD

ATTACHMENT B

AERSCREEN for PM10 Exhaust

AERSCREEN 21112 / AERMOD 22112                                      12/21/23 16:48:39
TITLE: AMORLITE LOFTS
‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ ******************************  AREA PARAMETERS  **************************** ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ SOURCE EMISSION RATE:         0.187E‐03 g/s             0.148E‐02 lb/hr AREA EMISSION RATE:           0.215E‐07 g/(s‐m2)        0.170E‐06 lb/(hr‐m2) AREA HEIGHT:                       3.00 meters               9.84 feet AREA SOURCE LONG SIDE:            93.36 meters             306.30 feet AREA SOURCE SHORT SIDE:           93.36 meters             306.30 feet INITIAL VERTICAL DIMENSION:        1.00 meters               3.28 feet RURAL OR URBAN:                   URBAN
POPULATION:                       79000
INITIAL PROBE DISTANCE =          5000. meters             16404. feet ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ ***********************  BUILDING DOWNWASH PARAMETERS  ********************** ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ BUILDING DOWNWASH NOT USED FOR NON‐POINT SOURCES
‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ **************************  FLOW SECTOR ANALYSIS  *************************** 25 meter receptor spacing: 1. meters ‐ 5000. meters
‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ MAXIMUM  IMPACT  RECEPTOR
Zo        SURFACE   1‐HR CONC  RADIAL  DIST   TEMPORAL
SECTOR    ROUGHNESS  (ug/m3)    (deg)   (m)    PERIOD
‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐
1*       1.000    0.5371      25    50.0     WIN
* = worst case diagonal
‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ **********************  MAKEMET METEOROLOGY PARAMETERS  ********************* ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ MIN/MAX TEMPERATURE:    250.0 / 310.0 (K)
MINIMUM WIND SPEED:       0.5 m/s
ANEMOMETER HEIGHT:     10.000 meters
SURFACE CHARACTERISTICS INPUT: AERMET SEASONAL TABLES
DOMINANT SURFACE PROFILE: Urban
DOMINANT CLIMATE TYPE:    Average Moisture
DOMINANT SEASON:          Winter
ALBEDO:                  0.35
BOWEN RATIO:             1.50
ROUGHNESS LENGTH:       1.000 (meters)
SURFACE FRICTION VELOCITY (U*) NOT ADUSTED
METEOROLOGY CONDITIONS USED TO PREDICT OVERALL MAXIMUM IMPACT ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ YR MO DY JDY HR
‐‐ ‐‐ ‐‐ ‐‐‐ ‐‐
10 01 10  10 01
H0     U*     W*  DT/DZ ZICNV ZIMCH  M‐O LEN    Z0  BOWEN ALBEDO  REF WS ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐1.30  0.043 ‐9.000  0.020 ‐999.   21.      6.0 1.000   1.50   0.35    0.50 HT  REF TA     HT
‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐

10.0   310.0    2.0
‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ ************************ AERSCREEN AUTOMATED DISTANCES ********************** OVERALL MAXIMUM CONCENTRATIONS BY DISTANCE
‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ MAXIMUM                             MAXIMUM
DIST     1‐HR CONC                  DIST     1‐HR CONC
(m)      (ug/m3)                    (m)      (ug/m3)
‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐               ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐

1.00    0.3847                   2524.99    0.4163E‐02

25.00    0.4690                   2550.00    0.4107E‐02

50.00    0.5371                   2575.00    0.4053E‐02

75.00    0.4554                   2600.00    0.4000E‐02 100.00    0.2963                   2625.00    0.3948E‐02 125.00    0.2174                   2650.00    0.3897E‐02 150.01    0.1718                   2675.00    0.3847E‐02 174.99    0.1415                   2700.00    0.3798E‐02 200.00    0.1196                   2725.00    0.3751E‐02 225.00    0.1031                   2750.00    0.3704E‐02 250.00    0.9021E‐01               2775.00    0.3658E‐02 274.99    0.7992E‐01               2800.00    0.3614E‐02 300.00    0.7147E‐01               2824.99    0.3570E‐02 325.00    0.6447E‐01               2850.00    0.3527E‐02 350.00    0.5858E‐01               2875.00    0.3485E‐02 375.01    0.5355E‐01               2900.00    0.3444E‐02 400.00    0.4923E‐01               2925.00    0.3404E‐02 425.00    0.4548E‐01               2950.00    0.3365E‐02 450.00    0.4220E‐01               2975.00    0.3326E‐02 475.01    0.3929E‐01               3000.00    0.3288E‐02 500.00    0.3672E‐01               3025.00    0.3251E‐02 525.00    0.3444E‐01               3050.00    0.3215E‐02 550.00    0.3238E‐01               3074.99    0.3179E‐02 575.00    0.3052E‐01               3100.00    0.3144E‐02 600.00    0.2884E‐01               3125.00    0.3109E‐02 625.00    0.2731E‐01               3150.00    0.3076E‐02 650.00    0.2593E‐01               3174.99    0.3043E‐02 675.00    0.2465E‐01               3199.99    0.3010E‐02 700.00    0.2349E‐01               3225.00    0.2978E‐02 725.00    0.2241E‐01               3250.00    0.2947E‐02 750.00    0.2141E‐01               3275.00    0.2916E‐02 775.00    0.2049E‐01               3300.00    0.2886E‐02 800.00    0.1964E‐01               3325.00    0.2856E‐02 825.00    0.1885E‐01               3350.00    0.2827E‐02 850.00    0.1811E‐01               3375.00    0.2799E‐02 875.00    0.1741E‐01               3400.00    0.2770E‐02 900.00    0.1676E‐01               3425.00    0.2743E‐02 924.99    0.1616E‐01               3450.00    0.2716E‐02 950.00    0.1559E‐01               3475.00    0.2689E‐02 975.00    0.1506E‐01               3500.00    0.2663E‐02 1000.00    0.1455E‐01               3525.00    0.2637E‐02 1025.00    0.1407E‐01               3550.00    0.2612E‐02 1050.00    0.1362E‐01               3575.00    0.2587E‐02 1075.00    0.1319E‐01               3600.00    0.2562E‐02 1100.00    0.1279E‐01               3625.00    0.2538E‐02 1125.01    0.1241E‐01               3650.00    0.2514E‐02 1150.00    0.1204E‐01               3675.00    0.2491E‐02 1175.00    0.1170E‐01               3700.00    0.2468E‐02 1200.00    0.1137E‐01               3725.00    0.2445E‐02 1225.00    0.1106E‐01               3750.00    0.2423E‐02 1250.00    0.1076E‐01               3775.00    0.2401E‐02 1275.00    0.1047E‐01               3800.00    0.2379E‐02 1300.00    0.1020E‐01               3825.00    0.2358E‐02 1325.00    0.9941E‐02               3850.00    0.2337E‐02 1350.01    0.9693E‐02               3875.00    0.2317E‐02 1375.00    0.9456E‐02               3900.00    0.2296E‐02 1400.00    0.9228E‐02               3925.00    0.2276E‐02 1425.00    0.9010E‐02               3950.00    0.2257E‐02 1450.00    0.8801E‐02               3975.00    0.2237E‐02 1475.00    0.8600E‐02               4000.00    0.2218E‐02 1500.00    0.8406E‐02               4025.00    0.2199E‐02 1525.00    0.8219E‐02               4050.00    0.2181E‐02 1550.00    0.8039E‐02               4075.00    0.2162E‐02 1575.00    0.7866E‐02               4100.00    0.2144E‐02 1600.00    0.7778E‐02               4125.00    0.2127E‐02 1625.00    0.7615E‐02               4150.00    0.2109E‐02 1650.00    0.7457E‐02               4175.00    0.2092E‐02 1675.00    0.7305E‐02               4200.00    0.2075E‐02 1700.00    0.7158E‐02               4225.00    0.2058E‐02 1725.00    0.7016E‐02               4250.00    0.2042E‐02 1750.00    0.6879E‐02               4275.00    0.2025E‐02 1775.00    0.6747E‐02               4300.00    0.2009E‐02 1800.00    0.6619E‐02               4325.00    0.1993E‐02 1825.00    0.6495E‐02               4350.00    0.1978E‐02 1850.00    0.6375E‐02               4375.00    0.1962E‐02 1875.00    0.6259E‐02               4400.00    0.1947E‐02 1900.00    0.6146E‐02               4425.00    0.1932E‐02 1924.99    0.6037E‐02               4450.00    0.1917E‐02 1950.00    0.5931E‐02               4475.00    0.1902E‐02 1975.00    0.5828E‐02               4500.00    0.1888E‐02 2000.00    0.5729E‐02               4525.00    0.1874E‐02 2025.00    0.5632E‐02               4550.00    0.1860E‐02 2050.00    0.5538E‐02               4575.00    0.1846E‐02 2075.00    0.5447E‐02               4600.00    0.1832E‐02 2100.00    0.5359E‐02               4625.00    0.1819E‐02 2124.99    0.5272E‐02               4650.00    0.1805E‐02 2150.00    0.5189E‐02               4675.00    0.1792E‐02 2175.00    0.5107E‐02               4700.00    0.1779E‐02 2200.00    0.5028E‐02               4725.00    0.1766E‐02 2225.00    0.4951E‐02               4750.00    0.1753E‐02 2250.00    0.4875E‐02               4775.00    0.1741E‐02 2275.00    0.4802E‐02               4800.00    0.1729E‐02 2300.00    0.4731E‐02               4825.00    0.1716E‐02 2325.00    0.4661E‐02               4850.00    0.1704E‐02 2350.00    0.4593E‐02               4875.00    0.1692E‐02 2375.00    0.4527E‐02               4900.00    0.1680E‐02 2399.99    0.4463E‐02               4925.00    0.1669E‐02 2424.99    0.4400E‐02               4950.00    0.1657E‐02 2449.99    0.4339E‐02               4975.00    0.1646E‐02 2475.00    0.4279E‐02               5000.00    0.1635E‐02 2500.00    0.4220E‐02
‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ **********************  AERSCREEN MAXIMUM IMPACT SUMMARY  ********************* ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ 3‐hour, 8‐hour, and 24‐hour scaled
concentrations are equal to the 1‐hour concentration as referenced in SCREENING PROCEDURES FOR ESTIMATING THE AIR QUALITY
IMPACT OF STATIONARY SOURCES, REVISED (Section 4.5.4)
Report number EPA‐454/R‐92‐019
http://www.epa.gov/scram001/guidance_permit.htm
under Screening Guidance
MAXIMUM      SCALED      SCALED      SCALED      SCALED 1‐HOUR      3‐HOUR      8‐HOUR     24‐HOUR      ANNUAL
CALCULATION          CONC        CONC        CONC        CONC        CONC PROCEDURE         (ug/m3)     (ug/m3)     (ug/m3)     (ug/m3)     (ug/m3) ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐    ‐‐‐‐‐‐‐‐‐‐  ‐‐‐‐‐‐‐‐‐‐  ‐‐‐‐‐‐‐‐‐‐  ‐‐‐‐‐‐‐‐‐‐  ‐‐‐‐‐‐‐‐‐‐ FLAT TERRAIN       0.5398      0.5398      0.5398      0.5398         N/A DISTANCE FROM SOURCE         51.00 meters
IMPACT AT THE
AMBIENT BOUNDARY   0.3847      0.3847      0.3847      0.3847         N/A DISTANCE FROM SOURCE          1.00 meters

ATTACHMENT C

Cancer Risk Calculations

From CalEE Annual Output Emission per day (Ton/Total Construction Duration) 0.006 Construction Start 1/1/2026
Construction Complete 12/4/2026 1.60E‐02
Days 337
Construction Emission per day (lb/day) 0.035608309
Annual Duration (Days) 365
Annualized Emission Rate (Grams/Second) 1.87E‐04
Project Site Size (Acres) 2.44
Project Site Size (meters^2) 9874.329671
Length of Smalles Side (meters) 99.36966172
Used as an input to AERSCREEN Emission Rate over Grading Area( g/s‐m^2) 1.89E‐08 From AERSCREEN*0.08 Concentration Annual  (Ug/M^3) 0.042968 Days Days to years
Duration 337 0.923287671
Age (Years) 3rd Trimester (0.25) 0‐2 2‐9 2‐16 16‐30 16‐70 Cair (annual) ‐ From F15 0.042968 0.042968 0.042968 0.042968 0.042968 0.042968 Breathing Rate per agegroup BR/BW (Page 5‐25) 361 1090 861 745 335 290 A (Default is 1) 1 1 1 1 1 1
Exposure Frequency = EF (days/365days)   0.96 0.96 0.96 0.96 0.96 0.96 10^‐6 Microgram to Milligram / liters to m3 0.000001 0.000001 0.000001 0.000001 0.000001 0.000001 Dose‐inh 0.00001489 0.00004496 0.00003552 0.00003073 0.00001382 0.00001196 Construction Days 337 0.923287671
potency factor for Diesel 1.1 1.1 1.1 1.1 1.1 1.1
Age Sensitivity Factor 10 10 3 3 1 1
ED  0.25 0.923287671 0.923287671 0.923287671 0.923287671 0.923287671 AT 70 70 70 70 70 70
FAH 0.85 0.85 0.72 0.72 0.73 0.73
Risk for Each Age Group 4.97253E‐07 5.5449E‐06 1.11303E‐06 9.6307E‐07 1.46358E‐07 1.26698E‐07 Risk per million Exposed 0.497252704 5.544896928 1.113025096 0.963070495 0.146357749 0.126697753 Cancer Risk Over Construction Duration 6.04
Air Quality Health Risk Calculations (Worst‐Case)
165 Unit Multi‐Family w/ 5600 SF Retail (PDF Tier 4 )
From CalEE Annual Output Emission per day (Ton/Total Construction Duration) 0.0044 Construction Start 6/1/2023
Construction Complete 4/16/2024
Days 320
Construction Emission per day (lb/day) 0.0275
Annual Duration (Days) 365
Annualized Emission Rate (Grams/Second) 0.000144
Project Site Size (Acres) 2.51
Project Site Size (meters^2) 10157.60962
Length of Smalles Side (meters) 100.7849672
Used as an input to AERSCREEN Emission Rate over Grading Area( g/s‐m^2) 1.42E‐08 From AERSCREEN*0.08 Concentration Annual  (Ug/M^3) 0.02792 Days Days to years
Duration 320 0.876712329
Age (Years) 3rd Trimester (0.25) 0‐2 2‐9 2‐16 16‐30 16‐70 Cair (annual) ‐ From F15 0.02792 0.02792 0.02792 0.02792 0.02792 0.02792 Breathing Rate per agegroup BR/BW (Page 5‐25) 361 1090 861 745 335 290 A (Default is 1) 1 1 1 1 1 1
Exposure Frequency = EF (days/365days)   0.96 0.96 0.96 0.96 0.96 0.96 10^‐6 Microgram to Milligram / liters to m3 0.000001 0.000001 0.000001 0.000001 0.000001 0.000001 Dose‐inh 0.00000968 0.00002922 0.00002308 0.00001997 0.00000898 0.00000777 Construction Days 320 0.876712329
potency factor for Diesel 1.1 1.1 1.1 1.1 1.1 1.1
Age Sensitivity Factor 10 10 3 3 1 1
ED  0.25 0.876712329 0.876712329 0.876712329 0.876712329 0.876712329 AT 70 70 70 70 70 70
FAH 0.85 0.85 0.72 0.72 0.73 0.73
Risk for Each Age Group 3.23108E‐07 3.42124E‐06 6.86745E‐07 5.94222E‐07 9.03038E‐08 7.81734E‐08 Risk per million Exposed 0.32310779 3.421242274 0.686744688 0.594221594 0.09030381 0.078173447 Cancer Risk Per Million 9‐years 4.43
Cancer Risk Per Million 30‐years 4.43
Cancer Risk Per Million 70‐years 4.42

13.28 87.12467035 100.40 76.29093452 73.79701623 150.0879507 Air Quality Health Risk Calculations (Worst‐Case)
Greens Storage with Tier 4 PDF with DPF

ATTACHMENT D

Terex 4242SR Rock Crusher Cut Sheet