SP19-0001 Attachment D MND-Appendix A-Air Quality Analysis — San Marcos City Council, January 24, 2023

Air Quality Analysis for the
Montiel Road Office Project,
San Marcos, California

Prepared for
City of San Marcos
Development Services Department
Planning Division
1 Civic Center Drive
San Marcos, CA 92069

Prepared by
RECON Environmental, Inc.
1927 Fifth Avenue
San Diego, CA 92101
P 619.308.9333

RECON Number 9257
February 11, 2020

Jessica Fleming,
Environmental Specialist
Noise, Air Quality, Greenhouse Gas

Air Quality Analysis
Montiel Road Office Project
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TABLE OF CONTENTS
Acronyms and Abbreviations .................................................................................. ii Executive Summary ................................................................................................... 1

1.0 Introduction ..................................................................................................... 2

2.0 Project Description ......................................................................................... 2

3.0 Regulatory Framework .................................................................................. 5

3.1 Federal Regulations ............................................................................................. 5

3.2 State Regulations ................................................................................................. 9

3.3 San Diego Air Pollution Control District .......................................................... 11

4.0 Environmental Setting ................................................................................. 11

4.1 Geographic Setting ............................................................................................ 11

4.2 Climate ............................................................................................................... 12

4.3 Existing Air Quality ........................................................................................... 13

5.0 Thresholds of Significance .......................................................................... 16

6.0 Air Quality Assessment ................................................................................ 17

6.1 Construction Emissions ..................................................................................... 18

6.2 Operation Emissions .......................................................................................... 20

6.3 Impact Analysis ................................................................................................. 21

7.0 Conclusions ..................................................................................................... 24

8.0 References Cited ............................................................................................ 25

FIGURES
1: Regional Location ............................................................................................................ 5 2: Aerial Photograph of Project Vicinity ............................................................................. 4 3: Site Plan ........................................................................................................................... 6 TABLES
1: Ambient Air Quality Standards ...................................................................................... 7 2: Summary of Air Quality Measurements Recorded at the Escondido Air Quality Monitoring Station...................................................................................................... 13 3: Air Quality Impact Screening Levels ........................................................................... 17 4: Summary of Worst-case Construction Emissions ........................................................ 19 6: Summary of Project Operational Emissions ................................................................ 21

ATTACHMENT
1: CalEEMod Output – Project Emissions
Air Quality Analysis
Montiel Road Office Project
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Acronyms and Abbreviations
µg/m3 micrograms per cubic meter
°F degrees Fahrenheit
AAQS Ambient Air Quality Standards
AB Assembly Bill
CAA Clean Air Act
CAAQS California Ambient Air Quality Standards
CalEEMod California Emissions Estimator Model
CAPCOA California Air Pollution Control Officers Association CARB California Air Resources Board
CEQA California Environmental Quality Act
CFR Code of Federal Regulations
City City of San Diego
CO carbon monoxide
DPM diesel particulate matter
LOS Level of Service
NAAQS National Ambient Air Quality Standards
NO2 nitrogen dioxide
NOX oxides of nitrogen
OEHHA Office of Environmental Health Hazard Assessment
Pb lead
PM10 particulate matter with an aerodynamic diameter of 10 microns or less PM2.5 particulate matter with an aerodynamic diameter of 2.5 microns or less ppb parts per billion
ppm parts per million
project Montiel Road Office Project
RAQS Regional Air Quality Strategy
ROG reactive organic gas
SANDAG San Diego Association of Governments
SDAB San Diego Air Basin
SDAPCD San Diego Air Pollution Control District
SIP State Implementation Plan
SO2 sulfur dioxide
SOX oxides of sulfur
SR-78 State Route 78
TACs toxic air contaminants
TCM Transportation Control Measures
U.S. EPA United States Environmental Protection Agency
USC United States Code
VOC volatile organic compounds

Air Quality Analysis
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Executive Summary
This report evaluates potential local and regional air quality impacts associated with the Montiel Road Office Project (project) located at 2355 and 2375 Montiel Road within the Richland Community Plan area of San Marcos, California. The approximately 2.6-acre project site is currently developed with two single -family dwelling units. The proposed project would demolish the existing on -site uses and construct a 32,969- square-foot, two-story office building and parking.

The primary goal of the San Diego Air Pollution Control District’s Regional Air Quality Strategy (RAQS) is to reduce ozone precursor emissions. The project site is designated as a Specific Plan area. The project would require a Specific Plan A mendment consistent with the Commercial zone requirement in Chapter 20.220 of the San Marcos Municipal Code. However, while the project would require an amendment and generate emissions greater than those currently generated on-site, the project would not significantly alter the planned location, distribution, or growth of the human population in the area, as the project would not provide additional housing and would employee residents currently living in the region. The project would not result in an increase in population and housing stock. Additionally, as discussed in Sections 6.1 and 6.2, project emissions would not exceed the project-level significance thresholds. The project would, therefore, not result in an increase in emissions that are not already accounted for in the RAQS.

Thus, the project would not obstruct or conflict with implementation of the RAQS.

Additionally, as calculated in this analysis, project construction emissions would not exceed the applicable City emissions thresholds. These thresholds are designed to provide limits below which project emissions would not significantly change regional air quality. A s project emissions would be well below these limits, project construction would not result in regional emissions that would exceed the National Ambient Air Quality Standards (NAAQS) or California Ambient Air Quality Standards ( CAAQS) or contribute to existing violations. Additionally, construction emissions would be temporary, intermittent, and would cease at the end of project construction. Therefore, the project construction would result in a less than significant impact in regards to air quality standards.

Long-term emissions of regional air pollutants occur from operational sources. Based on emissions estimates, project operational emissions would not exceed the applicable regional emissions thresholds. As project emissions would be well below these limits, project operations would not result in regional emissions that would exceed the NAAQS or CAAQS or contribute to existing violations. Therefore, the project operation would result in a less than significant impact in regards to air quality standards and no mitigation would be required.

The project would not result in the exposure of sensitive receptors to substantial concentrations of diesel particulate matter during project construction. Additionally, project traffic is not anticipated to result in a carbon monoxide hot spot.

The project does not include heavy industrial or agricultural uses that are typically associated with objectionable odors. The project would involve the use o f diesel -powered equipment during construction. Diesel exhaust may occasionally be noticeable at adjacent properties; however, construction activities would be temporary and the odors would dissipate quickly in an outdoor environment. Therefore, this impact would be less than significant.

Air Quality Analysis
Montiel Road Office Project

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1.0 Introduction
The purpose of this report is to assess potential short -term and long-term local and regional air quality impacts resulting from development of the Montiel Road Office Project (project).

Air pollution aff ects all southern Californians. Effects can include increased respiratory infections, increased discomfort, missed days from work and school, and increased mortality. Polluted air also damages agriculture and our natural environment.

The state of Californ ia is divided geographically into 15 air basins for managing the air resources of the state on a regional basis. Areas within each air basin are considered to share the same air masses and, therefore, are expected to have similar ambient air quality.

The project site is located within the San Diego Air Basin (SDAB). The SDAB is currently classified as a federal non -attainment area for ozone, and a state non-attainment area for particulate matter less than 10 microns (PM 10), particulate matter less than 2.5 microns (PM2.5), and ozone.

Air quality impacts can result from the construction and operation of the project.

Construction impacts are short term and result from fugitive dust, equipment exhaust, and indirect effects associated with construction work ers and deliveries. Operational impacts can occur on two levels: regional impacts resulting from growth -inducing development, or local hot -spot effects stemming from sensitive receivers being placed close to highly congested roadways. In the case of this p roject, operational impacts would be primarily due to emissions to the basin from mobile sources associated with vehicular travel along the roadways within the project area.

The analysis of impacts is based on federal and state Ambient Air Quality Standards and is assessed in accordance with the guidelines, policies, and standards established by the City of San Marcos (City) and the San Diego Air Pollution Control District (SDAPCD). Project compatibility with the adopted air quality plan for the area is al so assessed. Measures are recommended, as required, to reduce potentially significant impacts.

2.0 Project Description
The project is located in the city of San Marcos, California, north of State Route 78 (SR-78) along Montiel Road at 2355 and 2375 Montie l Road o n Assessor’s Parcel Numbers 228-370-20-00 and 228-370-39-00. The project site is bounded by existing development to the east and west, and by Montiel Road to the north and SR -78 to the south. The approximately 2.6-acre project site is currently devel oped with two single -family dwelling units. Single-family residential uses are located north and northeast of the project site, and commercial uses are located west/northwest and east/southeast of the project site. Figure 1 shows the regional location of t he project. Figure 2 shows an aerial photograph of the project and vicinity.

FIGURE 1
Regional Location
kj

USMC AIR

STATION

MIRAMAR

USMC AIR

STATION

MIRAMAR
Daley Ranch
L
os Penasquitos
Canyon Presv
Mission Trails
Regional
Park
Cleveland NF
Lake Wohlford
Batiquitos Lagoon
Lake Hodges
El Capitan
Reservoir
San Vicente
Reservoir
Sweetwater
Reservoir
S
a
n
Di e g u i t o
R
i v e r
S a
n
Lu i s
R e y
R
i v e r
S
an
Di e g u i t o
R
i v e r
S a n t a
Y s a b
e
l
C r e e k
S
w
e
e
tw
a
t er
R
i v
e
r
E
s
c on d
id
o
C
r ee k
S a n D i e g o
R i v e r
Jamul Indian
Village
San
Pasqual
Reservation
Rincon Reservation
Sycuan
Reservation
La Jolla Reservation
Barona
Reservation
Valley Center
B
ostonia
Casa
de Oro-Mount
Helix
Crest
Fairbanks
Ranch
Granite Hills
Harbison
Canyon
Hidden
Meadows
Jamul
Lake
San Marcos
Lakeside
La Presa
Ramona
Rancho
San Diego
Rancho
Santa Fe
Spring
Valley
Winter Gardens
UV163
UV78
UV54
UV56
UV76
UV75
UV125
UV67
UV94
UV52
§¨¦8
§¨¦805
§¨¦15
§¨¦5

S A N D I E G O
C

O U N T Y
Carlsbad
C
hula Vista
Coronado
Del
Mar
El Cajon
Encinitas
Escondido
La
Mesa
Lemon
Grove
National City
Oceanside
Poway
San Diego
San Marcos
Santee
Solana
Beach
Vista
kj

USMC AIR

STATION

MIRAMAR

USMC AIR

STATION

S A N D I E G O
C

O U N T Y
Carlsbad
C
hula Vista
Coronado
Del
Mar
El Cajon
Encinitas
Escondido
La
Mesa
Lemon
Grove
National City
Oceanside
Poway
San Diego
San Marcos
Santee
Solana
Beach
Vista
0 5Miles [
M:\JOBS5\9257\common_gis\fig1.mxd 2/20/2019 bma

SAN DIEGO

RIVERSIDE

SAN BERNARDINO
ORANGE
MEXICO
Project Locationkj
FIGURE 2
Project Location on Aerial Photograph
DEO
DAR RD

MONTIEL
RD
UV78
DEO
DAR RD

MONTIEL
RD
UV78
Image Source: Nearmap (flown June 2019)
0 100Feet [
Project Boundary
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The project would demolish the existing on-site uses and construct a 32,969-square-foot two- story office building and parking. Figure 3 shows the proposed site plan. The first floor would consist of 15,712 square feet, complete with a lobby, a “café” area with outdoor seating, bathrooms, mechanical and elevator areas, and three individual office areas available for lease. The second flood would consist of 17,252 square feet, complete with four ind ividual office areas available for lease, bathroom, and mechanical and elevator areas. The second floor would also contain an outdoor deck area above the main entrance to the building.

On-site surface parking would be configured in order to accommodate the proposed buildings, resulting in a total of 174 parking stalls, for a ratio of 5.7 spaces per 1000 square feet of office space, which would exceed the requirements set forth in the San Marcos Code Chapter 20.340, Off-Street Parking and Loading requirements.

3.0 Regulatory Framework

3.1 Federal Regulations
Ambient Air Quality Standards (AAQS ) represent the maximum levels of background pollution considered safe, with an adequate margin of safety, to protect the public health and welfare. The federal Clean Air Act ( CAA) was enacted in 1970 and amended in 1977 and 1990 [42 United States Code (USC) 7401] for the purposes of protecting and enhancing the quality of the nation’s air resources to benefit public health, welfare, and productivity.

In 1971, in order to achieve the purposes of Section 109 of the CAA [42 USC 7409], the U.S.

Environmental Protection Agency (U.S. EPA) developed primary and secondary NAAQS.

Six criteria pollutants of primary concern have been designated: ozone, carbon monoxide (CO), sulfur dioxide (SO
2), nitrogen dioxide (NO 2), lead (Pb), and respirable particulate matter (PM10 and PM2.5). The primary NAAQS “. . . in the judgment of the Administrator, based on such criteria and allowing an adequate margin of safety, are requisite to protect the public health . . . “ and the secondary standards “. . . protect the public welfare from any known or anticipated adverse effects associated with the presence of such air pollutant in the ambient air” [42 USC 7409(b)(2)]. The primary NAAQS were established, with a margin of safety, considering long-term exposure for the most sensitive groups in the general population (i.e., children, senior citizens, and people with breathing difficulties). The NAAQS are presented in Table 1 (California Air Resources Board [CARB] 2016).

An air basin is designated as either attainment or non-attainment for a particular pollutant. Once a non-attainment area has achieved the AAQS for a particular pollutant, it is re-designated as an attainment area for that pollutant. To be redesignated, the area must meet air quality standards for three consecutive years. After re-designation to attainment , the area is known as a maintenance area and must develop a 10-year plan for continuing to meet and maintain air quality standards, as well as satisfy other requirements of the federal CAA. The SDAB is a non-attainment area for the federal ozone standard.

FIGURE 3
Site Plan

MONTIEL RD
UV78

MONTIEL RD
UV78
Image Source: Nearmap (flown June 2019)
0 100Feet [
Project Boundary
Site Plan Line
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Table 1
Ambient Air Quality Standards
Pollutant Averaging
Time
California Standards1 National Standards2
Concentration3 Method4 Primary3,5 Secondary3,6 Method7
Ozone8
1 Hour 0.09 ppm
(180 µg/m3) Ultraviolet
Photometry
– Same as
Primary
Standard
Ultraviolet
Photometry
8 Hour 0.07 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
(PM

2.5)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 µg/m3 15 µg/m3
Carbon
Monoxide
(CO)
1 Hour 20 ppm
(23 mg/m3)
Non-dispersive
Infrared
Photometry
35 ppm
(40 mg/m3) –
Non-dispersive
Infrared
Photometry
8 Hour 9.0 ppm
(10 mg/m3)
9 ppm
(10 mg/m3) –
8 Hour
(Lake
Tahoe)
6 ppm
(7 mg/m3) – –
Nitrogen
Dioxide
(NO2)10
1 Hour 0.18 ppm
(339 µg/m3) Gas Phase
Chemi-
luminescence
100 ppb
(188 µg/m3) – Gas Phase
Chemi-
luminescence
Annual
Arithmetic
Mean

0.030 ppm
(57 µg/m3)

0.053 ppm
(100 µg/m3)
Same as
Primary
Standard
Sulfur
Dioxide
(SO2)11
1 Hour 0.25 ppm
(655 µg/m3)
Ultraviolet
Fluorescence
75 ppb
(196 µg/m3) –
Ultraviolet
Fluorescence;
Spectro-
photometry
(Pararosaniline
Method)
3 Hour – –

0.5 ppm
(1,300
µg/m3)
24 Hour 0.04 ppm
(105 µg/m3)

0.14 ppm
(for certain
areas)11
–
Annual
Arithmetic
Mean
–

0.030 ppm
(for certain
areas)11
–
Lead12,13
30 Day
Average 1.5 µg/m3
Atomic
Absorption
– –
High Volume
Sampler and
Atomic
Absorption
Calendar
Quarter –

1.5 µg/m3
(for certain
areas)12 Same as
Primary
Standard Rolling
3-Month
Average
– 0.15 µg/m3
Visibility
Reducing
Particles14
8 Hour See footnote 14
Beta
Attenuation
and
Transmittance
through Filter
Tape No National Standards
Sulfates 24 Hour 25 µg/m3 Ion Chroma-
tography
Hydrogen
Sulfide 1 Hour 0.03 ppm
(42 µg/m3)
Ultraviolet
Fluorescence
Vinyl
Chloride12 24 Hour 0.01 ppm
(26 µg/m3)
Gas Chroma-
tography
See footnotes on next page.

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Table 1
Ambient Air Quality Standards
ppm = parts per million; ppb = parts per billion; µg/m3 = micrograms per cubic meter; – = not applicable. 1 California standards for ozone, carbon monoxide (except 8-hour Lake Tahoe), sulfur dioxide (1 and 24 hour), nitrogen dioxide, 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 site in a year, averaged over three years, is equal to or less than 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/m 3 is equal to or less than one. For PM 2.5, 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. Contact 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 measurement method which can be shown to the satisfaction of the Air Resources Board 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 U.S. 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 U.S. 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 PM 2.5 primary standard was lowered from 15 µg/m 3 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 standards of 15 µg/m 3. The existing 24 -hour PM 10 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 concentrations at each site must not exceed 100 ppb. Note that the national standards are in units of ppb. California standards are in units of ppm. To directly compare the national standards 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 SO 2 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 non -attainment for the 1971 standards, the 1971 standards remain in effect until implementation plans to attain or maintain the 2010 standards are approved.

Note that the 1- hour national standard is in units of ppb. California sta ndards are in units of ppm. To directly compare the 1-hour national standard to the California standard the units can be converted to ppm.

In this case, the national standard of 75 ppb is identical to 0.075 ppm. 12 The Air Resources Board has identified lead and vinyl chloride as ‘toxic air contaminants’ with no threshold level of exposure for adverse health 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 non -attainment for the 1978 standard, the 1978 standard remains in effect until implementation plans to attain or m aintain 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: CARB 2016.

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3.2 State Regulations

3.2.1 Criteria Pollutants
The CARB has developed the California Ambient Air Quality Standards ( CAAQS) and generally has set more stringent limits on the criteria pollutants than the NAAQS (see Table 1). In addition to the federal criteria pollutants, the CAAQS also specify standards for visibility-reducing particles, sulfates, hydrogen sulfide, and vinyl chloride (see Table 1).

Similar to the federal CAA, the state classifies as either “attainment” or “non-attainment” areas for each pollutant based on the comparison of measured data with the CAAQS. The SDAB is a non-attainment area for the state ozone standards, the state PM10 standard, and the state PM2.5 standard.

3.2.2 Toxic Air Contaminants
The public’s exposure to toxic air contaminants (TACs) is a significant public health issue in California. Diesel-exhaust particulate matter emissions have been established as TACs. In 1983, the California Legislature enacted a program to identify the health effects of TACs and to reduce exposure to these contaminants to protect the public health (Assembly Bill [AB] 1807: Health and Safety Code Sections 39650–39674). The Legislature established a two- step process to address the potential health effects from TACs. The first step is the risk assessment (or identification) phase. The second step is the risk management (or control) phase of the process.

The California Air Toxics Program establishes the process for the identification and control of TACs and includes provisions to make the public aware of significant toxic exposures and for reducing risk. Additionally, the Air Toxics “Hot Spots” Information and Assessment Act (AB 2588, 1987, Connelly Bill) was enacted in 1987 and requires stationary sources to report the types and quantities of certain substances routinely released into the air.

The goals of the Air Toxics “Hot Spots” Act are to collect emission data, to identify facilities having localized impacts, to ascertain health risks, to notify nearby residents of significant risks, and to reduce those significant risks to acceptable levels.

The Children’s Environmental Health Protection Act, California Senate Bill 25 (Chapter 731, Escutia, Statutes of 1999), focuses on children’s exposure to air pollutants.

The act requires CARB to review its air quality standards from a children’s health perspective, evaluate the statewide ai r monitoring network, and develop any additional air toxic control measures needed to protect children’s health. Locally, toxic air pollutants are regulated through the SDAPCD’s Regulation XII. Of particular concern statewide are diesel-exhaust particulate matter emissions. Diesel- exhaust particulate matter was established as a TAC in 1998, and is estimated to represent a majority of the cancer risk from TACs statewide (based on the statewide average). Diesel exhaust is a complex mixture of gases, vapors, and fine particles. This complexity makes the evaluation of health effects of diesel exhaust a complex scientific issue. Some of the chemicals in diesel exhaust, such as Air Quality Analysis
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benzene and formaldehyde, have been previously identified as TACs by the CARB and are listed as carcinogens either under the state's Proposition 65 or under the federal Hazardous Air Pollutants program.

Following the identification of diesel particulate matter (DPM) as a TAC in 1998, CARB has worked on developing strategies and regulations aimed at reducing the risk from DPM. The overall strategy for achieving these reductions is found in the Risk Reduction Plan to Reduce Particulate Matter Emissions from Diesel -Fueled Engines and Vehicles (CARB 2000). A stated goal of the plan is to reduce the statewide cancer risk arising from exposure to DPM by 85 percent by 2020.

In April 2005, CARB published the Air Quality and Land Use Handbook: A Community Health Perspective (CARB 2005). The handbook makes recommendations directed at protecting sensiti ve land uses from air pollutant emissions while balancing a myriad of other land use issues (e.g., housing, transportation needs, economics, etc.). It notes that the handbook is not regulatory or binding on loc al agencies and recognizes that application takes a qualitative approach. As reflected in the CARB Handbook, there is currently no adopted standard for the significance of health effects from mobile sources. Therefore, the CARB has provided guidelines for the siting of land uses near heavily traveled roadways.

Of pertinence to this study, the CARB guidelines indicate that siting new sensitive land uses within 500 feet of a freeway or urban roads with 100,000 or more vehicles/day should be avoided when possible.

As an ongoing process, CARB will continue to establish new programs and regulations for the control of diesel particulate and other air-toxics emissions as appropriate. The continued development and implementation of these programs and policies will ensure that the public’s exposure to DPM will continue to decline.

3.2.3 State Implementation Plan
The State Implementation Plan (SIP) is a collection of documents that set forth the state’s strategies for achieving the NAAQS. In California, the SIP is a compilation of new and previously submitted plans, programs (such as air quality management plans, monitoring, modeling, permitting, etc.), district rules, state regulations, and federal controls. The CARB is the lead agency for all purposes related to the SIP under state law. Local air districts and other agencies, such as the Department of Pesticide Regulation and the Bureau of Automotive Repair, prepare SIP elements and submit them to CARB for review and approval. The CARB then forwards SIP revisions to the U.S. EPA for approval and publication in the Federal Register. All of the items included in the California SIP are listed in the Code of Federal Regulations (CFR) at 40 CFR 52.220.

The SDAPCD is responsible for preparing and implementing the portion of the SIP applicable to the SDAB. The SIP plans for San Diego County specifically include the Redesignation Request and Maintenance Plan for the 1997 National Ozone Standard for San Diego County (2012), and the 2004 Revision to the California State Implementation Plan for Carbon Monoxide–Updated Maintenance Plan for Ten Federal Planning Areas.

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3.2.4 The California Environmental Quality Act
Section 15125(d) of the California Environmental Quality Act (CEQA) Guidelines requires discussion of any inconsistencies between the project and applicable general plans and regional plans, including the applicable air quality attainment or maintenance plan (or SIP).

3.3 San Diego Air Pollution Control District
The SDAPCD is the agency that regulates air quality in the SDAB. The SDAPCD prepared the RAQS in response to the requirements set forth in the California CAA AB 2595 (SDAPCD 1992) and the federal CAA. Motor vehicles are San Diego County’s leading source of air pollution (SDAPCD 2013). In addition to these sources, other mobile sources include construction equipment, trains, and airplanes. Reducing mobile source emissions requires the technological improvement of existing mobile sources and the examination o f future mobile sources, such as those associated with new or modification projects (e.g., retrofitting older vehicles with cleaner emission technologies). In addition to mobile sources, stationary sources also contribute to air pollution in the SDAB. Stat ionary sources include gasoline stations, power plants, dry cleaners, and other commercial and industrial uses. Stationary sources of air pollution are regulated by the local air pollution control or management district, in this case the SDAPCD.

The SDAPCD is responsible for preparing and implementing the RAQS. A s part of the RAQS, the SDAPCD developed Transportation Control Measures (TCMs) for the air quality plan prepared by the San Diego Association of Governments (SANDAG) in accordance with AB 2595 and adopted by SANDAG on March 27, 1992, as Resolution Number 92-49 and Addendum. The RAQS and TCM set forth the steps needed to accomplish attainment of NAAQS and CAAQS. The required triennial updates of the RAQS and corresponding TCM were adopted in 1995, 1998, 2001, 2004, 2009, and 2016.

The SDAPCD has also established a set of rules and regulations initially adopted on January 1, 1969 and periodically reviewed and updated. These rules and regulations are available for review on the agency’s website.

4.0 Environmental Setting

4.1 Geographic Setting
The project is located in the City of San Marcos, about 12 miles east of the Pacific Ocean.

The eastern portion of the SDAB is surrounded by mountains to the north, east, and south.

These mountains tend to restri ct airflow and concentrate pollutants in the valleys and low - lying areas below.

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4.2 Climate
The project area, like the rest of San Diego County, has a Mediterranean climate characterized by warm, dry summers and mild winters. The mean annual temperature f or the project area is 62 degrees Fahrenheit (°F). The average annual precipitation is 16 inches, falling primarily from November to April. Winter low temperatures in the project area average about 38°F, and summer high temperatures average about 86 °F. The average relative humidity is 69 percent and is based on the yearly average humidity at Lindbergh Field (Western Regional Climate Center 2019).

The dominant meteorological feature affecting the region is the Pacific High Pressure Zone, which produces the prevailing westerly to northwesterly winds. These winds tend to blow pollutants away from the coast toward the inland areas. Consequently, air quality near the coast is generally better than that which occurs at the base of the coastal mountain range.

Fluctuations in the strength and pattern of winds from the Pacific High Pressure Zone interacting with the daily local cycle produce periodic temperature inversions that influence the dispersal or containment of air pollutants in the SDAB. Beneath the inversio n layer pollutants become “trapped” as their ability to disperse diminishes. The mixing depth is the area under the inversion layer. Generally, the morning inversion layer is lower than the afternoon inversion layer. The greater the change between the morning and afternoon mixing depths, the greater the ability of the atmosphere to disperse pollutants.

Throughout the year, the height of the temperature inversion in the afternoon varies between approximately 1,500 and 2,500 feet above mean sea level. In wint er, the morning inversion layer is about 800 feet above mean sea level. In summer, the morning inversion layer is about 1,100 feet above mean sea level. Therefore, air quality generally tends to be better in the winter than in the summer.

The prevailing we sterly wind pattern is sometimes interrupted by regional “Santa Ana” conditions. A Santa Ana occurs when a strong high pressure develops over the Nevada - Utah area and overcomes the prevailing westerly coastal winds, sending strong, steady, hot, dry northeasterly winds over the mountains and out to sea.

Strong Santa Anas te nd to blow pollutants out over the ocean, producing clear days.

However, at the onset or during breakdown of these conditions, or if the Santa Ana is weak, local air quality may be adversely affected. In these cases, emissions from the South Coast Air Basin to the north are blown out over the ocean, and low pressure over Baja California draws this pollutant -laden air mass southward. As the high pressure weakens, prevailing northwesterly winds reassert themselves and send this cloud of contamination ashore i n the SDAB. When this event does occur, the combination of transported and locally produced contaminants produce the worst air quality measurements recorded in the basin.

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4.3 Existing Air Quality
Air quality at a particular location is a function of the k inds, amounts, and dispersal rates of pollutants being emitted into the air locally and throughout the basin. The major factors affecting pollutant dispersion are wind speed and direction, the vertical dispersion of pollutants (which is affected by inversions), and the local topography.

Air quality is commonly expressed as the number of days in which air pollution levels exceed state standards set by the CARB or federal standards set by the U.S. EPA. The SDAPCD maintains 10 air quality monitoring stations located throughout the greater San Diego metropolitan region. Air pollutant concentrations and meteorological information are continuously recorded at these stations. Measurements are then used by scientists to help forecast daily air pollution levels.

The Escondido monitoring station located at 600 East Valley Parkway , approximately 2 miles east of the project site , is the nearest station to the project site that measures a range of pollutants. The Escondido monitoring station measures ozone, NO 2, PM10, and
PM2.5. Table 2 provides a summary of measurements collected at the Escondido monitoring station for the years 2011 through 2015. In 2015, the Escondido monitoring station was temporarily shut down to install a bike path. The grounds immediately adjacent to the station were being demolished t o erect a new County facility. The new Escondido monitoring station will be part of this new County facility complex (about 20 meters southeast of the original location). The new Escondido monitoring station will begi n operation again sometime this year.

Table 2
Summary of Air Quality Measurements Recorded at the
Escondido Air Quality Monitoring Station
Pollutant/Standard 2011 2012 2013 2014 2015
Ozone
Days State 1-hour Standard Exceeded (0.09 ppm) 1 0 0 1 0 Days State 8-hour Standard Exceeded (0.07 ppm) 2 2 4 8 3 Days 2008 Federal 8-hour Standard Exceeded (0.075 ppm) 2 0 0 5 0 Days 2015 Federal 8-hour Standard Exceeded (0.070 ppm) 2 1 4 7 2 Max. 1-hr (ppm) 0.098 0.084 0.084 0.099 0.079
Max 8-hr (ppm) 0.089 0.074 0.074 0.079 0.071
Nitrogen Dioxide
Days State 1-hour Standard Exceeded (0.18 ppm) 0 0 0 0 0 Days Federal 1-hour Standard Exceeded (0.100 ppm) 0 0 0 0 0 Max 1-hr (ppm) 0.062 0.062 0.061 0.063 0.048
Annual Average (ppm) -- 0.013 0.013 0.011 --
PM10*
Measured Days State 24-hour Standard Exceeded (50 µg/m3) 0 0 1 0 0 Calculated Days State 24-hour Standard Exceeded (50 µg/m3) 0.0 0.0 6.0 0.0 -- Measured Days Federal 24-hour Standard Exceeded (150 µg/m3) 0 0 0 0 0 Calculated Days Federal 24-hour Standard Exceeded (150 µg/m3) 0.0 0.0 0.0 0.0 -- Max. Daily (µg/m3) 40.0 33.0 82.0 44.0 31.0
State Annual Average (µg/m3) 18.8 18.1 23.1 21.5 --
Federal Annual Average (µg/m3) 18.8 18.0 23.2 21.6 17.5 Air Quality Analysis
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Table 2
Summary of Air Quality Measurements Recorded at the
Escondido Air Quality Monitoring Station
Pollutant/Standard 2011 2012 2013 2014 2015
PM2.5*
Measured Days Federal 24-hour Standard Exceeded (35 µg/m3) 0 1 1 1 0 Calculated Days Federal 24-hour Standard Exceeded (35 µg/m3) 0.0 3.1 1.1 1.0 -- Max. Daily (µg/m3) 27.4 70.7 56.3 77.5 29.4
State Annual Average (µg/m3) 10.4 -- 10.5 9.3 --
Federal Annual Average (µg/m3) 10.4 10.5 11.0 9.9 --
SOURCE: CARB 2019.
ppm = parts per million
µg/m3 = micrograms per cubic meter
-- = Not available.
* Calculated days value. Calculated days are the estimated number of days that a measurement would have been greater than the level of the standard had measurements been collected every day. The number of days above the standard is not necessarily the number of violations of the standard for the year.

4.3.1 Ozone
Nitrogen oxides and hydrocarbons (reactive organic gases [ROG]) are known as the chief “precursors” of ozone. These compounds react in the presence of sunlight to produce ozone, which is the primary air pollution problem in the SDAB. Because sunlight plays such an important role in its formation, ozone pollution—or smog—is mainly a concern during the daytime in summer months. The SDAB is currently designated a federal and state non- attainment area for ozone. During the past 25 years, San Diego had experienced a decline in the number of days with unhealthy levels of ozone despite the region’s growth in population and vehicle miles traveled (SDAPCD 2013).

About half of smog -forming emissions come from automobiles. P opulation growth in San Diego has resulted in a large increase in the number of automobiles expelling ozone - forming pollutants while operating on area roadways. In addition, the occasional transport of smog-filled air from the South Coast Air Basin only ad ds to the SDAB’s ozone problem.

Stricter automobile emission controls, including more efficient automobile engines, have played a large role in why ozone levels have steadily decreased.

In order to address adverse health effects due to prolonged exposure, the U.S. EPA phased out the national 1-hour ozone standard and replaced it with the more protective 8 -hour ozone standard. The SDAB is currently a non-attainment area for the previous (1997) national 8-hour standard, and is recommended as a non-attainment area for the revised (2008) national 8-hour standard of 0.075 parts per million (ppm).

Not all of the ozone within the SDAB is derived from local sources. Under certain meteorological conditions, such as during Santa Ana wind events, ozone and other pollutants are transported from the Los Angeles Basin and combine with ozone formed from local emission sources to produce elevated ozone levels in the SDAB.

Local agencies can control neither the source nor the transportation of pollutants from outside the air basin. The SDAPCD’s policy, therefore, has been to control local sources Air Quality Analysis
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effectively enough to reduce locally produced contamination to clean air standards. Through the use of air pollution control measures outlined in the RAQS, the SDAPCD has effectively reduced ozone levels in the SDAB.

Actions that have been taken in the SDAB to reduce ozone concentrations include:
• TCMs if vehicle travel and emissions exceed attainment demonstration levels. TCMs are strategies that will reduce transportation -related emissions by reducing vehicle use or improving traffic flow.
• Enhanced motor vehicle ins pection and maintenance program. The smog check program is overseen by the Bureau of Automotive Repair. The program requires most vehicles to pass a smog test once every two years before registering in the state of California. The smog check program monito rs the amount of pollutants automobiles produce. One focus of the program is identifying “ gross polluters, ” or vehicles that exceed two times the allowable emissions for a particular model.

Regular maintenance and tune-ups, changing the oil, and checking t ire inflation can improve gas mileage and lower air pollutant emissions. It can also reduce traffic congestion due to preventable breakdowns, further lowering emissions. • Air Quality Improvement Program. This program, established by AB 118, is a voluntary incentive program administered by the CARB to fund clean vehicle and equipment projects, research on biofuels production and the air quality impacts of alternative fuels, and workforce training.

4.3.2 Carbon Monoxide
The SDAB is classified as a state attainment area and as a federal maintenance area for CO. Until 2003, no violations of the state standard for CO had been recorded in the SDAB since 1991, and no violations of the national standard had been recorded in the SDAB since 1989. The violations that took place in 2003 were likely the result of massive wildfires that occurred throughout the county. No violations of the state or federal CO standards have occurred since 2003.

Small-scale, localized concentrations of CO above the state and national standards have the potential to occur at intersections with stagnation points such as those that occur on major highways and heavily traveled and congested roadways. Localized high concentrations of CO are referred to as “CO hot spots ” and are a concern at congested intersections, where automobile engines burn fuel less efficiently and their exhaust contains more CO.

4.3.3 Particulate Matter
Particulate matter is a complex mixture of microscopic solid or liquid particles including chemicals, soot, and dust. Anthropogenic sources of direct particulate emissions include crushing or grinding operations, dust stirred up by vehicle traffic, and combustion sources such as motor vehicles, power plants, wood burning, forest fires, agricultural burning and Air Quality Analysis
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industrial processes. Additionally, indirect emissions may be formed when aerosols react with compounds found in the atmosphere.

Health studies have shown a significant association between exposure to particulate matter and premature death in people with heart or l ung diseases. Other important effects include aggravation of respiratory and cardiovascular disease, lung disease, decreased lung function, asthma attacks, and certain cardiovascular problems such as heart attacks and irregular heartbeat (U.S. EPA 2016).

As its properties vary based on the size of suspended particles, particulate matter is generally categorized as particulate matter with an aerodynamic diameter of 10 microns or less (PM
10) or particulate matter with an aerodynamic diameter of 2.5 microns or less (PM2.5).

4.3.3.1 PM10
PM10, occasionally referred to as “ inhalable coarse particles” has an aerodynamic diameter of about one -seventh of the diameter of a human hair. High concentrations of PM 10 are often found near roadways, construction, mining, or agricultural operations.

4.3.3.2 PM2.5
PM2.5, occasionally referred to as “inhalable fine particles” has an aerodynamic diameter of about one -thirtieth of the diameter of a human hair. PM 2.5 is the main cause of haze in many parts of the United States. Fed eral standards applicable to PM 2.5 were first adopted in 1997.

4.3.4 Other Criteria Pollutants
The national and state standards for NO2, oxides of sulfur (SOX), and the previous standard for lead are being met in the SDAB, and the latest pollutant trends suggest that these standards will not be exceeded in the foreseeable future. As discussed above, new standards for these pollutants have been adopted, and new d esignations for the SDAB will be determined in the future. The SDAB is also in attainment of the state standards for vinyl chloride, hydrogen sulfides, sulfates, and visibility-reducing particulates.

5.0 Thresholds of Significance
Thresholds used to evaluate potential impacts to air quality are based on applicable criteria in the CEQA Guidelines Appendix G . The project would have a significant air quality impact if it would:

1. Obstruct or conflict with the implementation of the RAQS.

2. Result in emissions that would violate any air quality standard or contribute substantially to an existing or projected air quality violation.

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3. Result in a cumulatively considerable net increase of any criteria pollutant for which the project region is non-attainment under an applicable federal or state ambient air quality standard (including the release of emissions which exceed quantitative thresholds for ozone precursors).

4. Expose sensitive receptors to substantial pollutant concentration including air toxics such as diesel particulates.

5. Create objectionable odors affecting a substantial number of people.

The City has not adopted air quality significance thresholds. The SDAPCD also does not provide specific numeric thresholds for determining the signific ance of air quality impacts under the CEQA Guidelines. However, the SDAPCD does specify Air Quality Impact Analysis “trigger” levels for criteria pollutant emissions associated with new or modified stationary sources (SDAPCD Rules 20.1, 20.2, and 20.3). The SDAPCD does not consider these trigger levels to represent adverse air quality impacts; rather, if these trigger levels are exceeded by stationary sources associated with a project, the SDAPCD requires an air quality analysis to determine if a significan t air quality impact would occur. This analysis uses SDAPCD trigger levels shown in Table 3 as air quality impact screening levels.

Table 3
Air Quality Impact Screening Levels
Pollutant
Emission Rate
Pounds/Hour Pounds/Day Tons/Year
NOX 25 250 40
SOX 25 250 40
CO 100 550 100
PM10 -- 100 15
Lead -- 3.2 0.6
ROGa -- 250 --
PM2.5 -- 67 10
SOURCE: SDAPCD, Rules 20.1, 20.2, 20.3
aROG threshold based on federal General Conformity de
minimis levels for ozone precursors.

6.0 Air Quality Assessment
Construction impacts are short term and result from fugitive dust, equipment exhaust, and indirect effects associated with construction workers and deliveries. Operational impacts can occur on two levels: regional or local. In the case of this project, ope rational impacts are primarily due to emissions from mobile sources associated with vehicular travel along the roadways within the project area.

Construction and operation a ir emissions were calculated using California Emissions Estimator Model (CalEEMod) 2016.3.2 (California Air Pollution Control Officers Association [CAPCOA] 2017). The CalEEMod program is a tool used to estimate air emissions resulting from land development projects based on California -specific emission Air Quality Analysis
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factors. The model estimates mass emissions from two basics sources: construction sources and operational sources (i.e., area and mobile sources).

Inputs to CalEEMod include such items as the air basin containing the project, land uses, trip generation rates, trip lengths, vehicle fleet mix (percentage of autos, medium truck, etc.), trip destination (i.e., percent of trips from home to work, etc.), d uration of construction phases, construction equipment usage, grading areas, season, and ambient temperature, as well as other parameters. The CalEEMod output files contained in Attachment 1 indicate the specific outputs for each model run. Emissions of ox ides of nitrogen ( NOX), CO, SO X, PM10, PM 2.5, and ROG are calculated. Emission factors are not available for lead, and consequently, lead emissions are not calculated. The SDAB is currently in attainment of the federal and state lead standards. Furthermore , fuel used in construction equipment and most other vehicles is not leaded. Emissions were calculated for the soonest operational year of 2022.

6.1 Construction Emissions
Construction-related activities are temporary, short-term sources of air emissions. Sources of construction-related air emissions include:
• Fugitive dust from grading activities;
• Construction equipment exhaust;
• Construction-related trips by workers, delivery trucks, and material -hauling trucks; and
• Construction-related power consumption.

Construction-related pollutants result from dust raised during demolition and grading, emissions from construction vehicles, and chemicals used during construction. Fugitive dust emissions vary greatly during construction and are dependent on the amount and type of activity, silt content of the soil, and the weather. Vehicles moving over paved and unpaved surfaces, demolition, excavation, earth movement, grading, and wind erosion from exposed surfaces are all sources of fugitive dust. Construction operations are subject to the requirements established in Regulation 4, Rules 52, 54, and 55, of the SDAPCD’s rules and regulations.

Heavy-duty construction equipment is usually diesel powered. In general, emissions from diesel- powered equipment contain more NO X, SO X, and particulate matter than gasoline -powered engines. However, diesel-powered engines generally produce less CO and less ROG than do gasoline-powered engines. Standard construction equipment includes tractors/loaders/backhoes, rubber-tired dozers, excavators, graders, cranes, forklifts, rollers, paving equipment, generator sets, welders, cement and mortar mixers, and air compressors.

Primary inputs are the numbers of each piece of equipment and the length of each construction stage. Specific constructio n phasing and equipment parameters are not available at this time. However, CalEEMod can estimate the required construction equipment when project -specific information is unavailable. The estimates are based on Air Quality Analysis
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surveys, performed by the South Coast Air Qua lity Management District and the Sacramento Metropolitan Air Quality Management District of typical construction projects, which provide a basis for scaling equipment needs and schedule with a project’s size. Air emission estimates in CalEEMod are based on the duration of construction phases; construction equipment type, quantity, and usage; grading area; season; and ambient temperature, among other parameters. Construction emissions were modeled with construction beginning in 2021 and lasting for approximately one year. Assuming construction would occur in 2021 is conservative, as continued implementation of regulations for off-road equipment, the primary construction emission source, would reduce emissions from these sources over time.

Table 4 shows the total projected construction maximum daily emission levels for each criteria pollutant. The CalEEMod output files for construction emissions are contained in Attachment 1.

Table 4
Summary of Worst-case Construction Emissions
(pounds per day)
Construction
Emissions
ROG NOX CO SOX PM10 PM2.5
Demolition 2 20 15 <1 1 1
Site Preparation 2 18 11 <1 2 1
Grading 2 20 10 <1 8 4
Building Construction 2 18 16 <1 1 1
Paving 2 11 12 <1 1 1
Architectural Coatings 4 2 2 <1 <1 <1
Maximum Daily
Emissions 4 20 15 <1 8 4
Significance Threshold
250 250 550 250 100 67

Standard dust control measures would be implemented as a part of project construction in accordance with SDAPCD rules and regulations (Rules 50, 51, 52, 54, and 55) for controlling emissions from fugitive dust and fumes:
• Water the grading areas a minimum of twice daily to minimize fugitive dust. • Provide sufficient erosion control to prevent washout of silty material onto public roads.
• Cover haul trucks or maintain at least 12 inches of freeboard to reduce blow -off during hauling.
• Periodically sweep up dirt and debris spilled onto paved surfaces to reduce re - suspension of particulate matter caused by vehicle movement. Clean approach routes to construction sites of construction-related dirt.

Fugitive dust emissions were calculated using CalEEMod default values, and did not take into account the req uired dust control measures. Thus, the emissions shown in Table 4 are Air Quality Analysis
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conservative. It should also be noted that all construction equipment is subject to the CARB In-Use Off-Road Diesel-Fueled Fleets Regulation . This regulation, which applies to all off - road diesel vehicles 25 horsepower or greater, limits unnecessary idling to 5 minutes, requires all construction fleets to be labeled and reported to CARB, bans Tier 0 equipment and phases out Tier 1 and 2 equipment (thereby replacing fleets with cleaner equipment), and requires that fleets comply with Best Available Control Technology requirements.

As shown in Table 5, maximum daily construction emissions associated with the project are projected to be less than the applicable thresholds for all criteria pollutants.

6.2 Operation Emissions
Mobile source emissions would originate from traffic generated by the project. Area source emissions would result from the use of natural gas , consumer products, as well as applying architectural coatings and landscaping activities.

Mobile source operational emissions are based on the trip rate, trip length for each land use type and size. According to the project traffic report, the project would generate 659 average daily trips (LLG 2019). Based on regional data compiled by CARB as part of the emission factor model, the average regional trip length for all trips in San Diego County is 7.5 miles (CARB 2017). This distance is multiplied by the total trip generation of the project to determine total project annual vehicle miles traveled. Default vehicle emission factors were used.

Area source emissions associated with the project include consumer products, natural gas used in space and water heating, architectural coatings, and landscaping equipment.

Hearths (fireplaces) and woodstoves are also a source of area emissions ; however, the project would not include hearths or woodstoves. Consumer products are chemically formulated products used by household and institutional consumer s, including, but not limited to, detergents, cleaning compounds, polishes, floor finishes, disinfectants, sanitizers, and aerosol paints but not includ ing other paint products, furniture coatings, or architectural coatings. Emissions due to consumer products are calculated using total building area and product emission factors. Emissions are generated from the combustion of natural gas used in space and water heating.

For architectural coatings, emissions result from evaporation of solvents contained in surface coatings such as in paints and primers. Emissions are based on the building surface area, architectural coating emission factors, and a reapplication rate of 10 percent of area per year. Landscaping maintenance includes fuel combustion emission from equipment such as lawn mowers , rototillers, shredders/grinders, blowers, trimmers, chain saws, and hedge trimmers as well as air compressors, generators, and pumps. Emission calculations take into account building area, equipment emission factors, and the number of operational days (summer days).

Table 5 provides a summary of the operational emissions generated by the project.

CalEEMod output files for project operation are contained in Attachment 1. As shown, Air Quality Analysis
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project-generated emissions are projected to be less than the screening thresholds for all criteria pollutants.

Table 5
Summary of Project Operational Emissions
(pounds per day)
Source
Emissions
ROG NOX CO SOX PM10 PM2.5
Area Sources 1 <1 <1 <1 <1 <1
Energy Sources <1 <1 <1 <1 <1 <1
Mobile Sources 1 4 9 <1 3 1
Total 2 4 10 <1 3 1
Significance Threshold 250 250 550 250 100 67

6.3 Impact Analysis

1. Would the project obstruct or conflict with the implementation of the San Diego RAQS? The RAQS is the applicable regional air quality plan that sets forth the SDAPCD’s strategies for achieving the NAAQS and CAAQS. The SDAB is designated non-attainment for the federal and state ozone standard. Accordingly, the RAQS was developed to identify feasible emission control measures and provide expeditious progress toward attaining the standards for ozone. The two pollutants addressed in the RAQS are ROG and NO X, which are precursors to the formation of ozone. Projected increases in motor vehicle usage, population, and growth create challenges in controlling emissions and by extension to maintaining and improving air quality. The RAQS, in conjunction with the TCM, were most recently adopted in 2016 as the air quality plan for the region.

The growth projections used by the SDAPCD to develop the RAQS emissions budgets are based on the population, vehicle trends, and land use plans developed in general plans and used by SANDAG in the development of the regional transportation plans and sustainable communities strategy. As such, projects that propose development that is consistent wit h the growth anticipated by SANDAG’s growth projections and/or the general plan would not conflict with the RAQS. In the event that a project would propose development that is less dense than anticipated by the growth projections, the project would likewis e be consistent with the RAQS. In the event a project proposes development that is greater than anticipated in the growth projections, further analysis would be warranted to determine if the project would exceed the growth projections used in the RAQS for the specific subregional area.

The project site is designated as a Specific Plan area. The project would require a Specific Plan Amendment consistent with the Commercial zone requirement in Chapter 20.220 of the San Marcos Municipal Code. However, while th e project would require an amendment and generate emissions greater than those currently generated on -site, the project would not significantly alter the planned location, distribution, or growth of the human population in the area, as the project would no t provide additional housing and would employee residents currently living in the region. The project would not result in an increase in Air Quality Analysis
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population and housing stock. Additionally, as discussed in Sections 6.1 and 6.2, project emissions would not exceed th e project-level significance thresholds. The project would, therefore, not result in an increase in emissions that are not already accounted for in the RAQS. Thus, the project would not obstruct or conflict with implementation of the RAQS.

2. Would the project result in emissions that would violate any air quality standard or contribute substantially to an existing or projected air quality violation? As shown in Table 4, project construction would not exceed the applicable regional emissions thresholds. These thresholds are designed to provide limits below which project emissions would not significantly change regional air quality. Therefore, as project construction emissions would be well below these limits, project construction would not result in regional emissions that would exceed the NAAQS or CAAQS or contribute to existing violations.

Long-term emissions of regional air pollutants occur from operational sources. As shown in Table 5, project operation would not exceed the applicable regional emissions thresholds.

Therefore, as project operation emissions would be well below these limits, project operation would not result in regional emissions that would exceed the NAAQS or CAAQS or contribute to existing violations. Theref ore, the project would result in a less than significant impact in regards to air quality standards.

3. Would the project result in a cumulatively considerable net increase of any criteria pollutant for which the project region is non-attainment under an applicable federal or state ambient air quality standard (including release emissions which exceed quantitative thresholds for ozone precursors)?
The region is classified as an attainment area for all criterion pollutants except ozone, PM
10, and PM2.5. The SDAB is a non-attainment area for the 8-hour federal and state ozone standards. Ozone is not emitted directly, but is a result of atmospheric activity on precursors. NOX and ROG are known as the chief “ precursors” of ozone. These compounds react in the pres ence of sunlight to produce ozone. PM 2.5 includes fine particles that are found in smoke and haze, and are emitted from all types of combustion activities (motor vehicles, power plants, wood burning, etc.) and certain industrial processes. PM 10 includes
both fine and coarse dust particles, and sources include crushing or grinding operations and dust from paved or unpaved roads.

As shown in Tables 4 and 5, emissions of ozone precursors (ROG and NOX), PM10, and PM2.5 from construction and operation would be below the applicable thresholds. Therefore, the project would not result in a cumulatively considerable net increase in emissions of ozone, PM10, or PM2.5, and impacts would be less than significant.

4. Would the project expose sensitive receptors to substanti al pollutant concentration including air toxics such as diesel particulates?
Sensitive land uses include schools and schoolyards, parks and playgrounds, daycare centers, nursing homes, hospitals, and residential communities. Sensitive receptors near the project site include residential uses.

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Diesel Particulate Matter – Construction
Construction of the project and associated infrastructure would result in short-term diesel exhaust emissions from on -site heavy -duty equipment. Construction of the project wou ld result in the generation of diesel- exhaust DPM emissions from the use of off -road diesel equipment required for site grading and excavation, paving, and other construction activities and on-road diesel equipment used to bring materials to and from the project site.

Generation of DPM from construction projects typically occurs in a single area for a short period. Construction is anticipated to last for approximately one year. The dose to which the receptors are exposed is the primary factor used to determine health risk. Dose is a function of the concentration of a substance or substances in the environment and the extent of exposure that person has with the substance. Dose is positively correlated with time, meaning that a longer exposure period would res ult in a higher exposure level for the Maximally Exposed Individual. The risks estimated for a Maximally Exposed Individual are higher if a fixed exposure occurs over a longer period of time. According to the Office of Environmental Health Hazard Assessment, health risk assessments, which determine the exposure of sensitive receptors to toxic emissions, should be based on a 30 -year exposure period; however, such assessments should be limited to the period/duration of activities associated with the project ( Office of Environmental Health Hazard Assessment 2015).

Thus, if the duration of proposed construction activities near any specific sensitive receptor were one year, the exposure would be 3 percent of the total exposure period used for health risk calculation.

Therefore, DPM generated by project construction is not expected to create conditions where the probability is greater than 10 in 1 million of contracting cancer for the Maximally Exposed Individual or to generate ground -level concentrations of nonc arcinogenic TACs that exceed a Hazard Index greater than 1 for the Maximally Exposed Individual.

Additionally, with ongoing implementation of U.S. EPA and CARB requirements for cleaner fuels; off-road diesel engine retrofits; and new, low-emission diesel engine types, the DPM emissions of individual equipment would be substantially reduced over the years as the p roject construction continues. Therefore, project construction would not expose sensitive receptors to substantial pollutant concentration.

Carbon Monoxide Hot Spots
A CO hot spot is an area of localized CO pollution that is caused by severe vehicle congestion on major roadways, typically near intersections. CO hot spots have the potential to violate state and federal CO standards at intersections, even if the broader basin is in attainment for federal and state levels. The California Department of Transportation Project-Level Carbon Monoxide Protocol indicates that CO hot spots occur nearly exclusively at signalized intersections operating at level of service (LOS) E or F spot (U.C.

Davis Institute of Transportation Studies 1997).

Due to increased requirements for cleaner vehicles, equipment, and fuels, CO levels in the state have dropped substantially. All air basins are attainment or maintenance areas for CO. Therefore, more recent screening procedures based on more current methodologies Air Quality Analysis
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have been developed. The Sacramento Metropolitan Air Quality Management District developed a screening threshold in 2011, which states that any project involving an intersection experiencing 31,600 vehicles per hour or more will require detailed analysis. In addition, the Bay Area Air Quality Management District developed a screening threshold in 2010 which states that any project involving an intersection experienc ing 44,000 vehicles per hour would require detailed analysis. This analysis conservatively assesses potential CO hot spots using the SMAQMD screening threshold of 31,600 vehicles per hour.

Based on the Transportation Impact Analysis prepared for the proje ct, in horizon year 2035 with the project, the following signalized intersections are anticipated to operate at LOS E or F (LLG 2019):
• Nordahl Road/Center Drive (South) (PM Peak hour – LOS E) • Nordahl Road/SR-78 Westbound Ramps (PM Peak hour – LOS F) • Nordahl Road/ SR-78 Eastbound Ramps (AM and PM Peak hour – LOS F) • Mission Road/Auto Park Way (AM and PM Peak hour – LOS F) However, the traffic volumes at these intersections would be well less than 31,600 vehicles per hour. All other signalized intersections are projected to operate at LOS D or better.

Therefore, the project is not anticipated to result in a CO hot spot.

5. Would the project create objectionable odors affecting a substantial number of people? The project does not include heavy industrial or agricultural uses that are typically associated with odor complaints. During construction, diesel equipment may generate some nuisance odors. Sensitive receptors near the project site include residential uses; however, exposure to odors assoc iated with project construction would be short term and temporary in nature. Impacts would be less than significant.

7.0 Conclusions
The primary goal of the RAQS is to reduce ozone precursor emissions. The project site is designated as a Specific Plan are a. The project would require a Specific Plan A mendment consistent with the Commercial zone requirement in Chapter 20.220 of the San Marcos Municipal Code. However, while the project would require an amendment and generate emissions greater than those currently generated on-site, the project would not significantly alter the planned location, distribution, or growth of the human population in the area, as the project would not provide additional housing and would employee residents currently living in the re gion. The project would not result in an increase in population and housing stock. Additionally, as discussed in Sections 6.1 and 6.2, project emissions would not exceed the project- level significance thresholds. The project would, therefore, not result in an increase in emissions that are not already accounted for in the RAQS. Thus, the project would not obstruct or conflict with implementation of the RAQS.

As shown in Table 4 , project construction emissions would not exceed the applicable regional emissions thresholds. These thresholds are designed to provide limits below which Air Quality Analysis
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project emissions would not significantly change regional air quality. Therefore, as project emissions would be well below these limits, project construction would not result in regional emissions that would exceed the NAAQS or CAAQS or contribute to existing violations.

Additionally, construction emissions would be temporary, intermittent, and would cease at the end of project construction. Therefore, the project construction would result in a less than significant impact in regards to air quality standards. Long -term emissions of regional air pollutants occur from operational sources. As shown in Table 5 , project operation al emissions would not exceed the applicable regional emissions thresholds. Therefore, as project emissions would be well below these limits, project operations would not result in regional emissions that would exceed the NAAQS or CAAQS or contribute to existing violations. Therefore, the project operation would result in a less than significant impact in regards to air quality standards and no mitigation would be required.

The project would not result in the exposure of sensitive receptors to substantial concentrations of DPM during project construction . Additionally, the project is not anticipated to result in a CO hot spot.

The project does not include heavy industrial or agricultural uses that are typically associated with objectionable odors. The project would invol ve the use of diesel -powered construction equipment. Diesel exhaust may be noticeable temporarily at adjacent properties; however, construction activities would be temporary. Therefore, odor impacts would be less than significant.

8.0 References Cited
California Air Pollution Control Officers Association (CAPCOA) 2017 California Emissions Estimator model (CalEEMod). User’s Guide Version 2016.3.2. October, 2017.

California Air Resources Board (CARB)
2000 Risk Reduction Plan to Reduce Particulate Matter Em issions from Diesel-Fueled Engines and Vehicles. California Air Resources Board. Stationary Source Division, Mobile Source Control Division. October.

2005 Air Quality and Land Use Handbook: A Community Health Perspective.

California Air Resources Board. April.

2016 Ambient Air Quality Standards. California Air Resources Board. May 4

2017 2017 EMission FACtors (EMFAC) Web Database, version 1.02.

2019 California Air Quality Data Statistics. Available at http://www.arb.ca.gov/adam/welcome.html. Top 4 Summary and Hourly Listing.

Accessed on January 4, 2019.

Air Quality Analysis
Montiel Road Office Project

Page 26 ends

Linscott, Law, and Greenspan Engineers, Inc. (LLG)
2019 Transportation Impact Analysis for the Mo ntiel Road Office. LLG Ref. 3 -18-3017.

January 17, 2019.

Office of Environmental Health Hazard Assessment (OEHHA) 2015 Air Toxics Hot Spots Program Guidance Manual for the Preparation of Risk Assessments (Guidance Manual), February.

San Diego Air Pollution Control District (SDAPCD)
1992 1991/1992 Regional Air Quality Strategies. Air Pollution Control District. June.

2013 Air Quality in San Diego County. 2013 Annual Report.

University, California (Davis)
1997 Transportation Project-Level Carbon Monoxide Protocol (UCD-ITS-RR-97-21) December.

U.S. Environmental Protection Agency (U.S. EPA)
2016 Criteria Air Pollutants, Particulate Matter. Available at https://www3.epa.gov/airquality/particlepollution/index.html. Last updated February 23.

Western Regional Climate Center
2019 Western U.S. Climate Historical Summaries. Available at https://wrcc.dri.edu/cgi- bin/cliMAIN.pl?ca2862and http://www.wrcc.dri.edu/cgi-bin/clilcd.pl?ca23188.

Accessed on January 4, 2019.

Air Quality Analysis
Montiel Road Office Project

ATTACHMENT 1
CalEEMod Output – Project Emissions

1.1 Land Usage
Land Uses
Size
Metric
Lot Acreage
Floor Surface Area
Population
General Office Building

32.97 1000sqft

0.40 32,971.00
0 Parking Lot

2.20 Acre

2.20 95,832.00
0 1.2 Other Project Characteristics
Urbanization
Climate Zone
Urban
13 Wind Speed (m/s)
Precipitation Freq (Days)

2.6 40

1.3 User Entered Comments & Non-Default Data

1.0 Project Characteristics
Utility Company
San Diego Gas & Electric
2022
Operational Year
CO2 Intensity
(lb/MWhr)
449.3

0.018
CH4 Intensity
(lb/MWhr)

0.004
N2O Intensity
(lb/MWhr)
9257 Montiel Road Office
San Diego County APCD Air District, Winter
CalEEMod Version: CalEEMod.2016.3.2
Date: 11/25/2019 2:59 PM

Page 1 of 26 ends

9257 Montiel Road Office - San Diego County APCD Air District, Winter

Project Characteristics - Energy intensity factors updated based on SDG&E renewable procurement (
449.3
,

0.018
,

0.004
)
Land Use -
32,971
sf office building
~

2.6 acre site
Construction Phase - Architectural coatings simultaneous with last half of building construction Demolition -
Architectural Coating - SDAPCD Rule 67.0.1
Vehicle Trips -
20 trips/ksf

7.5 mile trip length
Area Coating - SDAPCD Rule 67.0.1
Energy Use -
Water And Wastewater - CalGreen requires 20% reduction in indoor water use (4,687,905.34 gallons) Waste Mitigation -
Energy Mitigation -
Mobile Land Use Mitigation -
CalEEMod Version: CalEEMod.2016.3.2
Date: 11/25/2019 2:59 PM

Page 2 of 26 ends

9257 Montiel Road Office - San Diego County APCD Air District, Winter

2.0 Emissions Summary
Table Name
Column Name
Default Value
New Value
tblArchitecturalCoating
EF_Nonresidential_Exterior
250.00
150.00
tblArchitecturalCoating
EF_Nonresidential_Interior
250.00
100.00
tblArchitecturalCoating
EF_Parking
250.00
100.00
tblArchitecturalCoating
EF_Residential_Exterior
250.00
150.00
tblArchitecturalCoating
EF_Residential_Interior
250.00
100.00
tblAreaCoating
Area_EF_Nonresidential_Exterior
250
150
tblAreaCoating
Area_EF_Nonresidential_Interior
250
100
tblAreaCoating
Area_EF_Parking
250
100
tblAreaCoating
Area_EF_Residential_Exterior
250
150
tblAreaCoating
Area_EF_Residential_Interior
250
100
tblConstructionPhase
NumDays

10.00 110.00
tblLandUse
LandUseSquareFeet
32,970.00
32,971.00
tblLandUse
LotAcreage

0.76 0.40
tblProjectCharacteristics
CH4IntensityFactor

0.029

0.018
tblProjectCharacteristics
CO2IntensityFactor
720.49
449.3
tblProjectCharacteristics
N2OIntensityFactor

0.006

0.004
tblVehicleTrips
CC_TL

7.30 7.50
tblVehicleTrips
CNW_TL

7.30 7.50
tblVehicleTrips
CW_TL

9.50 7.50
tblVehicleTrips
WD_TR

11.03 20.00
tblWater
IndoorWaterUseRate
5,859,881.67
4,687,905.34
CalEEMod Version: CalEEMod.2016.3.2
Date: 11/25/2019 2:59 PM

Page 3 of 26 ends

9257 Montiel Road Office - San Diego County APCD Air District, Winter

2.1 Overall Construction (Maximum Daily Emission)
ROG
NOx
CO
SO2
Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5 Total
Bio- CO2
NBio- CO2
Total CO2
CH4
N2O
CO2e
Year
lb/day
lb/day
2021

5.9384

20.2387

18.5082

0.0382

6.6345

1.0426

7.5508

3.3893

0.9731

4.2323

0.0000
3,632.778
1 3,632.778
1 0.7692

0.0000
3,646.014
8 Maximum

5.9384

20.2387

18.5082

0.0382

6.6345

1.0426

7.5508

3.3893

0.9731

4.2323

0.0000
3,632.778
1 3,632.778
1 0.7692

0.0000
3,646.014
8 Unmitigated Construction
ROG
NOx
CO
SO2
Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5 Total
Bio- CO2
NBio- CO2
Total CO2
CH4
N2O
CO2e
Year
lb/day
lb/day
2021

5.9384

20.2387

18.5082

0.0382

6.6345

1.0426

7.5508

3.3893

0.9731

4.2323

0.0000
3,632.778
1 3,632.778
1 0.7692

0.0000
3,646.014
8 Maximum

5.9384

20.2387

18.5082

0.0382

6.6345

1.0426

7.5508

3.3893

0.9731

4.2323

0.0000
3,632.778
1 3,632.778
1 0.7692

0.0000
3,646.014
8 Mitigated Construction
ROG
NOx
CO
SO2
Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2
NBio-CO2
Total CO2
CH4
N20
CO2e
Percent
Reduction

0.00 0.00

0.00 0.00
CalEEMod Version: CalEEMod.2016.3.2
Date: 11/25/2019 2:59 PM

Page 4 of 26 ends

9257 Montiel Road Office - San Diego County APCD Air District, Winter

2.2 Overall Operational
ROG
NOx
CO
SO2
Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5 Total
Bio- CO2
NBio- CO2
Total CO2
CH4
N2O
CO2e
Category
lb/day
lb/day
Area

0.8414

3.0000e-
005

3.6000e-
003

0.0000

1.0000e-
005

7.7000e-
003

2.0000e-
005

8.2000e-
003
Energy

0.0197

0.1788

0.1502

1.0700e-
003

0.0136

0.0136
214.5639
214.5639

4.1100e-
003

3.9300e-
003
215.8389
Mobile

0.9612

4.0186

10.5239

0.0346

3.1224

0.0298

3.1522

0.8345

0.0278

0.8623
3,521.785
8 3,521.785
8 0.1941
3,526.638
1 Total

1.8222

4.1974

10.6777

0.0357

3.1224

0.0434

3.1658

0.8345

0.0414

0.8759
3,736.357
4 3,736.357
4 0.1982

3.9300e-
003
3,742.485
2 Unmitigated Operational
ROG
NOx
CO
SO2
Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5 Total
Bio- CO2
NBio- CO2
Total CO2
CH4
N2O
CO2e
Category
lb/day
lb/day
Area

0.8414

3.0000e-
005

3.6000e-
003

0.0000

1.0000e-
005

7.7000e-
003

2.0000e-
005

8.2000e-
003
Energy

0.0150

0.1363

0.1145

8.2000e-
004

0.0104

0.0104
163.5851
163.5851

3.1400e-
003

3.0000e-
003
164.5572
Mobile

0.9083

3.6968

9.3856

0.0297

2.6475

0.0259

2.6734

0.7076

0.0242

0.7317
3,023.915
8 3,023.915
8 0.1719
3,028.214
2 Total

1.7647

3.8332

9.5037

0.0305

2.6475

0.0363

2.6837

0.7076

0.0345

0.7421
3,187.508
6 3,187.508
6 0.1751

3.0000e-
003
3,192.779
5 Mitigated Operational
CalEEMod Version: CalEEMod.2016.3.2
Date: 11/25/2019 2:59 PM

Page 5 of 26 ends

9257 Montiel Road Office - San Diego County APCD Air District, Winter

3.0 Construction Detail
Construction Phase
Phase
Number
Phase Name
Phase Type
Start Date
End Date
Num Days
Week
Num Days
Phase Description
1 Demolition
Demolition
1/1/2021
1/28/2021
5 20
2 Site Preparation
Site Preparation
1/29/2021
2/2/2021
5 3
3 Grading
Grading
2/3/2021
2/10/2021
5 6
4 Building Construction
Building Construction
2/11/2021
12/15/2021
5 220
5 Architectural Coating
Architectural Coating
7/15/2021
12/15/2021
5 110
6 Paving
Paving
12/16/2021
12/29/2021
5 10
OffRoad Equipment
ROG
NOx
CO
SO2
Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2
NBio-CO2
Total CO2
CH4
N20
CO2e
Percent
Reduction

3.16 8.68

10.99 14.43

15.21 16.45

15.23 15.21

16.61 15.28

0.00 14.69

14.69 11.67

23.66 14.69
Residential Indoor: 0; Residential Outdoor: 0; Non-Residential Indoor: 49,457; Non-Residential Outdoor: 16,486; Striped Parking Area: 5,750 (Architectural Coating
±
sqft)
Acres of Grading (Site Preparation Phase): 4.5
Acres of Grading (Grading Phase): 3
Acres of Paving: 2.2
CalEEMod Version: CalEEMod.2016.3.2
Date: 11/25/2019 2:59 PM

Page 6 of 26 ends

9257 Montiel Road Office - San Diego County APCD Air District, Winter

Phase Name
Offroad Equipment Type
Amount
Usage Hours
Horse Power
Load Factor
Demolition
Concrete/Industrial Saws
1 8.00
81 0.73
Demolition
Rubber Tired Dozers
1 8.00
247

0.40 Demolition
Tractors/Loaders/Backhoes
3 8.00
97 0.37
Site Preparation
Graders
1 8.00
187

0.41 Site Preparation
Scrapers
1 8.00
367

0.48 Site Preparation
Tractors/Loaders/Backhoes
1 7.00
97 0.37
Grading
Graders
1 8.00
187

0.41 Grading
Rubber Tired Dozers
1 8.00
247

0.40 Grading
Tractors/Loaders/Backhoes
2 7.00
97 0.37
Building Construction
Cranes
1 8.00
231

0.29 Building Construction
Forklifts
2 7.00
89 0.20
Building Construction
Generator Sets
1 8.00
84 0.74
Building Construction
Tractors/Loaders/Backhoes
1 6.00
97 0.37
Building Construction
Welders
3 8.00
46 0.45
Paving
Cement and Mortar Mixers
1 8.00
9 0.56
Paving
Pavers
1 8.00
130

0.42 Paving
Paving Equipment
1 8.00
132

0.36 Paving
Rollers
2 8.00
80 0.38
Paving
Tractors/Loaders/Backhoes
1 8.00
97 0.37
Architectural Coating
Air Compressors
1 6.00
78 0.48
Trips and VMT
CalEEMod Version: CalEEMod.2016.3.2
Date: 11/25/2019 2:59 PM

Page 7 of 26 ends

9257 Montiel Road Office - San Diego County APCD Air District, Winter

3.2 Demolition - 2021
ROG
NOx
CO
SO2
Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5 Total
Bio- CO2
NBio- CO2
Total CO2
CH4
N2O
CO2e
Category
lb/day
lb/day
Fugitive Dust

0.2741

0.0000

0.2741

0.0415

0.0000

0.0415

0.0000

0.0000
Off-Road

1.9930

19.6966

14.4925

0.0241

1.0409

0.9715

0.9715
2,322.717
1 2,322.717
1 0.5940
2,337.565
8 Total

1.9930

19.6966

14.4925

0.0241

0.2741

1.0409

1.3150

0.0415

0.9715

1.0130
2,322.717
1 2,322.717
1 0.5940
2,337.565
8 Unmitigated Construction On-Site

3.1 Mitigation Measures Construction
Phase Name
Offroad Equipment
Count
Worker Trip
Number
Vendor Trip
Number
Hauling Trip
Number
Worker Trip
Length
Vendor Trip
Length
Hauling Trip
Length
Worker Vehicle
Class
Vendor
Vehicle Class
Hauling
Vehicle Class
Demolition
5 13.00

0.00 25.00

10.80 7.30

20.00 LD_Mix
HDT_Mix
HHDT
Site Preparation
3 8.00

0.00 0.00

10.80 7.30

20.00 LD_Mix
HDT_Mix
HHDT
Grading
4 10.00

0.00 0.00

10.80 7.30

20.00 LD_Mix
HDT_Mix
HHDT
Building Construction
8 51.00

21.00 0.00

10.80 7.30

20.00 LD_Mix
HDT_Mix
HHDT
Paving
6 15.00

0.00 0.00

10.80 7.30

20.00 LD_Mix
HDT_Mix
HHDT
Architectural Coating
1 10.00

0.00 0.00

10.80 7.30

20.00 LD_Mix
HDT_Mix
HHDT
CalEEMod Version: CalEEMod.2016.3.2
Date: 11/25/2019 2:59 PM

Page 8 of 26 ends

9257 Montiel Road Office - San Diego County APCD Air District, Winter

3.2 Demolition - 2021
ROG
NOx
CO
SO2
Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5 Total
Bio- CO2
NBio- CO2
Total CO2
CH4
N2O
CO2e
Category
lb/day
lb/day
Hauling

9.5400e-
003

0.3232

0.0833

9.5000e-
004

0.0218

1.0000e-
003

0.0228

5.9900e-
003

9.6000e-
004

6.9400e-
003
103.8837
103.8837

9.6400e-
003
104.1248
Vendor

0.0000

0.0000
Worker

0.0510

0.0328

0.3241

1.0000e-
003

0.1068

7.4000e-
004

0.1075

0.0283

6.8000e-
004

0.0290

99.3912

2.8600e-
003

99.4626
Total

0.0605

0.3560

0.4074

1.9500e-
003

0.1286

1.7400e-
003

0.1304

0.0343

1.6400e-
003

0.0360
203.2748
203.2748

0.0125
203.5873
Unmitigated Construction Off-Site
ROG
NOx
CO
SO2
Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5 Total
Bio- CO2
NBio- CO2
Total CO2
CH4
N2O
CO2e
Category
lb/day
lb/day
Fugitive Dust

0.2741

0.0000

0.2741

0.0415

0.0000

0.0415

0.0000

0.0000
Off-Road

1.9930

19.6966

14.4925

0.0241

1.0409

0.9715

0.0000
2,322.717
1 2,322.717
1 0.5940
2,337.565
8 Total

1.9930

19.6966

14.4925

0.0241

0.2741

1.0409

1.3150

0.0415

0.9715

1.0130

0.0000
2,322.717
1 2,322.717
1 0.5940
2,337.565
8 Mitigated Construction On-Site
CalEEMod Version: CalEEMod.2016.3.2
Date: 11/25/2019 2:59 PM

Page 9 of 26 ends

9257 Montiel Road Office - San Diego County APCD Air District, Winter

3.2 Demolition - 2021
ROG
NOx
CO
SO2
Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5 Total
Bio- CO2
NBio- CO2
Total CO2
CH4
N2O
CO2e
Category
lb/day
lb/day
Hauling

9.5400e-
003

0.3232

0.0833

9.5000e-
004

0.0218

1.0000e-
003

0.0228

5.9900e-
003

9.6000e-
004

6.9400e-
003
103.8837
103.8837

9.6400e-
003
104.1248
Vendor

0.0000

0.0000
Worker

0.0510

0.0328

0.3241

1.0000e-
003

0.1068

7.4000e-
004

0.1075

0.0283

6.8000e-
004

0.0290

99.3912

2.8600e-
003

99.4626
Total

0.0605

0.3560

0.4074

1.9500e-
003

0.1286

1.7400e-
003

0.1304

0.0343

1.6400e-
003

0.0360
203.2748
203.2748

0.0125
203.5873
Mitigated Construction Off-Site

3.3 Site Preparation - 2021
ROG
NOx
CO
SO2
Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5 Total
Bio- CO2
NBio- CO2
Total CO2
CH4
N2O
CO2e
Category
lb/day
lb/day
Fugitive Dust

1.5908

0.0000

1.5908

0.1718

0.0000

0.1718

0.0000

0.0000
Off-Road

1.5463

18.2862

10.7496

0.0245

0.7019

0.6457

0.6457
2,372.883
2 2,372.883
2 0.7674
2,392.069
2 Total

1.5463

18.2862

10.7496

0.0245

1.5908

0.7019

2.2926

0.1718

0.6457

0.8175
2,372.883
2 2,372.883
2 0.7674
2,392.069
2 Unmitigated Construction On-Site
CalEEMod Version: CalEEMod.2016.3.2
Date: 11/25/2019 2:59 PM

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9257 Montiel Road Office - San Diego County APCD Air District, Winter

3.3 Site Preparation - 2021
ROG
NOx
CO
SO2
Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5 Total
Bio- CO2
NBio- CO2
Total CO2
CH4
N2O
CO2e
Category
lb/day
lb/day
Hauling

0.0000

0.0000
Vendor

0.0000

0.0000
Worker

0.0314

0.0202

0.1995

6.1000e-
004

0.0657

4.5000e-
004

0.0662

0.0174

4.2000e-
004

0.0179

61.1638

1.7600e-
003

61.2077
Total

0.0314

0.0202

0.1995

6.1000e-
004

0.0657

4.5000e-
004

0.0662

0.0174

4.2000e-
004

0.0179

61.1638

1.7600e-
003

61.2077
Unmitigated Construction Off-Site
ROG
NOx
CO
SO2
Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5 Total
Bio- CO2
NBio- CO2
Total CO2
CH4
N2O
CO2e
Category
lb/day
lb/day
Fugitive Dust

1.5908

0.0000

1.5908

0.1718

0.0000

0.1718

0.0000

0.0000
Off-Road

1.5463

18.2862

10.7496

0.0245

0.7019

0.6457

0.0000
2,372.883
2 2,372.883
2 0.7674
2,392.069
2 Total

1.5463

18.2862

10.7496

0.0245

1.5908

0.7019

2.2926

0.1718

0.6457

0.8175

0.0000
2,372.883
2 2,372.883
2 0.7674
2,392.069
2 Mitigated Construction On-Site
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Date: 11/25/2019 2:59 PM

Page 11 of 26 ends

9257 Montiel Road Office - San Diego County APCD Air District, Winter

3.3 Site Preparation - 2021
ROG
NOx
CO
SO2
Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5 Total
Bio- CO2
NBio- CO2
Total CO2
CH4
N2O
CO2e
Category
lb/day
lb/day
Hauling

0.0000

0.0000
Vendor

0.0000

0.0000
Worker

0.0314

0.0202

0.1995

6.1000e-
004

0.0657

4.5000e-
004

0.0662

0.0174

4.2000e-
004

0.0179

61.1638

1.7600e-
003

61.2077
Total

0.0314

0.0202

0.1995

6.1000e-
004

0.0657

4.5000e-
004

0.0662

0.0174

4.2000e-
004

0.0179

61.1638

1.7600e-
003

61.2077
Mitigated Construction Off-Site

3.4 Grading - 2021
ROG
NOx
CO
SO2
Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5 Total
Bio- CO2
NBio- CO2
Total CO2
CH4
N2O
CO2e
Category
lb/day
lb/day
Fugitive Dust

6.5523

0.0000

6.5523

3.3675

0.0000

3.3675

0.0000

0.0000
Off-Road

1.8271

20.2135

9.7604

0.0206

0.9158

0.8425

0.8425
1,995.6114
1,995.6114

0.6454
2,011.7470
Total

1.8271

20.2135

9.7604

0.0206

6.5523

0.9158

7.4681

3.3675

0.8425

4.2100
1,995.611
4 1,995.611
4 0.6454
2,011.747
0 Unmitigated Construction On-Site
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Date: 11/25/2019 2:59 PM

Page 12 of 26 ends

9257 Montiel Road Office - San Diego County APCD Air District, Winter

3.4 Grading - 2021
ROG
NOx
CO
SO2
Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5 Total
Bio- CO2
NBio- CO2
Total CO2
CH4
N2O
CO2e
Category
lb/day
lb/day
Hauling

0.0000

0.0000
Vendor

0.0000

0.0000
Worker

0.0392

0.0252

0.2493

7.7000e-
004

0.0822

5.7000e-
004

0.0827

0.0218

5.2000e-
004

0.0223

76.4548

2.2000e-
003

76.5097
Total

0.0392

0.0252

0.2493

7.7000e-
004

0.0822

5.7000e-
004

0.0827

0.0218

5.2000e-
004

0.0223

76.4548

2.2000e-
003

76.5097
Unmitigated Construction Off-Site
ROG
NOx
CO
SO2
Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2
NBio- CO2
Total CO2
CH4
N2O
CO2e
Category
lb/day
lb/day
Fugitive Dust

6.5523

0.0000

6.5523

3.3675

0.0000

3.3675

0.0000

0.0000
Off-Road

1.8271

20.2135

9.7604

0.0206

0.9158

0.8425

0.0000
1,995.6114
1,995.6114

0.6454
2,011.7470
Total

1.8271

20.2135

9.7604

0.0206

6.5523

0.9158

7.4681

3.3675

0.8425

4.2100

0.0000
1,995.611
4 1,995.611
4 0.6454
2,011.747
0 Mitigated Construction On-Site
CalEEMod Version: CalEEMod.2016.3.2
Date: 11/25/2019 2:59 PM

Page 13 of 26 ends

9257 Montiel Road Office - San Diego County APCD Air District, Winter

3.4 Grading - 2021
ROG
NOx
CO
SO2
Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5 Total
Bio- CO2
NBio- CO2
Total CO2
CH4
N2O
CO2e
Category
lb/day
lb/day
Hauling

0.0000

0.0000
Vendor

0.0000

0.0000
Worker

0.0392

0.0252

0.2493

7.7000e-
004

0.0822

5.7000e-
004

0.0827

0.0218

5.2000e-
004

0.0223

76.4548

2.2000e-
003

76.5097
Total

0.0392

0.0252

0.2493

7.7000e-
004

0.0822

5.7000e-
004

0.0827

0.0218

5.2000e-
004

0.0223

76.4548

2.2000e-
003

76.5097
Mitigated Construction Off-Site

3.5 Building Construction - 2021
ROG
NOx
CO
SO2
Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5 Total
Bio- CO2
NBio- CO2
Total CO2
CH4
N2O
CO2e
Category
lb/day
lb/day
Off-Road

2.0451

16.0275

14.5629

0.0250

0.8173

0.7831

0.7831
2,288.935
5 2,288.935
5 0.4503
2,300.193
5 Total

2.0451

16.0275

14.5629

0.0250

0.8173

0.7831

0.7831
2,288.935
5 2,288.935
5 0.4503
2,300.193
5 Unmitigated Construction On-Site
CalEEMod Version: CalEEMod.2016.3.2
Date: 11/25/2019 2:59 PM

Page 14 of 26 ends

9257 Montiel Road Office - San Diego County APCD Air District, Winter

3.5 Building Construction - 2021
ROG
NOx
CO
SO2
Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5 Total
Bio- CO2
NBio- CO2
Total CO2
CH4
N2O
CO2e
Category
lb/day
lb/day
Hauling

0.0000

0.0000
Vendor

0.0669

2.1327

0.6068

5.5400e-
003

0.1422

4.6700e-
003

0.1468

0.0409

4.4700e-
003

0.0454
596.0205
596.0205

0.0464
597.1813
Worker

0.2000

0.1287

1.2716

3.9100e-
003

0.4190

2.8900e-
003

0.4219

0.1111

2.6700e-
003

0.1138
389.9193
389.9193

0.0112
390.1993
Total

0.2670

2.2614

1.8784

9.4500e-
003

0.5611

7.5600e-
003

0.5687

0.1521

7.1400e-
003

0.1592
985.9398
985.9398

0.0576
987.3806
Unmitigated Construction Off-Site
ROG
NOx
CO
SO2
Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5 Total
Bio- CO2
NBio- CO2
Total CO2
CH4
N2O
CO2e
Category
lb/day
lb/day
Off-Road

2.0451

16.0275

14.5629

0.0250

0.8173

0.7831

0.0000
2,288.935
5 2,288.935
5 0.4503
2,300.193
5 Total

2.0451

16.0275

14.5629

0.0250

0.8173

0.7831

0.0000
2,288.935
5 2,288.935
5 0.4503
2,300.193
5 Mitigated Construction On-Site
CalEEMod Version: CalEEMod.2016.3.2
Date: 11/25/2019 2:59 PM

Page 15 of 26 ends

9257 Montiel Road Office - San Diego County APCD Air District, Winter

3.5 Building Construction - 2021
ROG
NOx
CO
SO2
Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5 Total
Bio- CO2
NBio- CO2
Total CO2
CH4
N2O
CO2e
Category
lb/day
lb/day
Hauling

0.0000

0.0000
Vendor

0.0669

2.1327

0.6068

5.5400e-
003

0.1422

4.6700e-
003

0.1468

0.0409

4.4700e-
003

0.0454
596.0205
596.0205

0.0464
597.1813
Worker

0.2000

0.1287

1.2716

3.9100e-
003

0.4190

2.8900e-
003

0.4219

0.1111

2.6700e-
003

0.1138
389.9193
389.9193

0.0112
390.1993
Total

0.2670

2.2614

1.8784

9.4500e-
003

0.5611

7.5600e-
003

0.5687

0.1521

7.1400e-
003

0.1592
985.9398
985.9398

0.0576
987.3806
Mitigated Construction Off-Site

3.6 Architectural Coating - 2021
ROG
NOx
CO
SO2
Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5 Total
Bio- CO2
NBio- CO2
Total CO2
CH4
N2O
CO2e
Category
lb/day
lb/day
Archit. Coating

3.3682

0.0000

0.0000
Off-Road

0.2189

1.5268

1.8176

2.9700e-
003

0.0941

0.0941
281.4481
281.4481

0.0193
281.9309
Total

3.5871

1.5268

1.8176

2.9700e-
003

0.0941

0.0941
281.4481
281.4481

0.0193
281.9309
Unmitigated Construction On-Site
CalEEMod Version: CalEEMod.2016.3.2
Date: 11/25/2019 2:59 PM

Page 16 of 26 ends

9257 Montiel Road Office - San Diego County APCD Air District, Winter

3.6 Architectural Coating - 2021
ROG
NOx
CO
SO2
Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5 Total
Bio- CO2
NBio- CO2
Total CO2
CH4
N2O
CO2e
Category
lb/day
lb/day
Hauling

0.0000

0.0000
Vendor

0.0000

0.0000
Worker

0.0392

0.0252

0.2493

7.7000e-
004

0.0822

5.7000e-
004

0.0827

0.0218

5.2000e-
004

0.0223

76.4548

2.2000e-
003

76.5097
Total

0.0392

0.0252

0.2493

7.7000e-
004

0.0822

5.7000e-
004

0.0827

0.0218

5.2000e-
004

0.0223

76.4548

2.2000e-
003

76.5097
Unmitigated Construction Off-Site
ROG
NOx
CO
SO2
Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5 Total
Bio- CO2
NBio- CO2
Total CO2
CH4
N2O
CO2e
Category
lb/day
lb/day
Archit. Coating

3.3682

0.0000

0.0000
Off-Road

0.2189

1.5268

1.8176

2.9700e-
003

0.0941

0.0000
281.4481
281.4481

0.0193
281.9309
Total

3.5871

1.5268

1.8176

2.9700e-
003

0.0941

0.0000
281.4481
281.4481

0.0193
281.9309
Mitigated Construction On-Site
CalEEMod Version: CalEEMod.2016.3.2
Date: 11/25/2019 2:59 PM

Page 17 of 26 ends

9257 Montiel Road Office - San Diego County APCD Air District, Winter

3.6 Architectural Coating - 2021
ROG
NOx
CO
SO2
Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5 Total
Bio- CO2
NBio- CO2
Total CO2
CH4
N2O
CO2e
Category
lb/day
lb/day
Hauling

0.0000

0.0000
Vendor

0.0000

0.0000
Worker

0.0392

0.0252

0.2493

7.7000e-
004

0.0822

5.7000e-
004

0.0827

0.0218

5.2000e-
004

0.0223

76.4548

2.2000e-
003

76.5097
Total

0.0392

0.0252

0.2493

7.7000e-
004

0.0822

5.7000e-
004

0.0827

0.0218

5.2000e-
004

0.0223

76.4548

2.2000e-
003

76.5097
Mitigated Construction Off-Site

3.7 Paving - 2021
ROG
NOx
CO
SO2
Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5 Total
Bio- CO2
NBio- CO2
Total CO2
CH4
N2O
CO2e
Category
lb/day
lb/day
Off-Road

1.0633

10.6478

11.7756

0.0178

0.5826

0.5371

0.5371
1,709.1107
1,709.1107

0.5417
1,722.652
4 Paving

0.5764

0.0000

0.0000
Total

1.6397

10.6478

11.7756

0.0178

0.5826

0.5371

0.5371
1,709.110
7 1,709.110
7 0.5417
1,722.652
4 Unmitigated Construction On-Site
CalEEMod Version: CalEEMod.2016.3.2
Date: 11/25/2019 2:59 PM

Page 18 of 26 ends

9257 Montiel Road Office - San Diego County APCD Air District, Winter

3.7 Paving - 2021
ROG
NOx
CO
SO2
Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5 Total
Bio- CO2
NBio- CO2
Total CO2
CH4
N2O
CO2e
Category
lb/day
lb/day
Hauling

0.0000

0.0000
Vendor

0.0000

0.0000
Worker

0.0588

0.0378

0.3740

1.1500e-
003

0.1232

8.5000e-
004

0.1241

0.0327

7.8000e-
004

0.0335
114.6821
114.6821

3.2900e-
003
114.7645
Total

0.0588

0.0378

0.3740

1.1500e-
003

0.1232

8.5000e-
004

0.1241

0.0327

7.8000e-
004

0.0335
114.6821
114.6821

3.2900e-
003
114.7645
Unmitigated Construction Off-Site
ROG
NOx
CO
SO2
Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5 Total
Bio- CO2
NBio- CO2
Total CO2
CH4
N2O
CO2e
Category
lb/day
lb/day
Off-Road

1.0633

10.6478

11.7756

0.0178

0.5826

0.5371

0.0000
1,709.1107
1,709.1107

0.5417
1,722.652
4 Paving

0.5764

0.0000

0.0000
Total

1.6397

10.6478

11.7756

0.0178

0.5826

0.5371

0.0000
1,709.110
7 1,709.110
7 0.5417
1,722.652
4 Mitigated Construction On-Site
CalEEMod Version: CalEEMod.2016.3.2
Date: 11/25/2019 2:59 PM

Page 19 of 26 ends

9257 Montiel Road Office - San Diego County APCD Air District, Winter

4.0 Operational Detail - Mobile

4.1 Mitigation Measures Mobile
Increase Density

3.7 Paving - 2021
ROG
NOx
CO
SO2
Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5 Total
Bio- CO2
NBio- CO2
Total CO2
CH4
N2O
CO2e
Category
lb/day
lb/day
Hauling

0.0000

0.0000
Vendor

0.0000

0.0000
Worker

0.0588

0.0378

0.3740

1.1500e-
003

0.1232

8.5000e-
004

0.1241

0.0327

7.8000e-
004

0.0335
114.6821
114.6821

3.2900e-
003
114.7645
Total

0.0588

0.0378

0.3740

1.1500e-
003

0.1232

8.5000e-
004

0.1241

0.0327

7.8000e-
004

0.0335
114.6821
114.6821

3.2900e-
003
114.7645
Mitigated Construction Off-Site
CalEEMod Version: CalEEMod.2016.3.2
Date: 11/25/2019 2:59 PM

Page 20 of 26 ends

9257 Montiel Road Office - San Diego County APCD Air District, Winter

ROG
NOx
CO
SO2
Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5 Total
Bio- CO2
NBio- CO2
Total CO2
CH4
N2O
CO2e
Category
lb/day
lb/day
Mitigated

0.9083

3.6968

9.3856

0.0297

2.6475

0.0259

2.6734

0.7076

0.0242

0.7317
3,023.915
8 3,023.915
8 0.1719
3,028.214
2 Unmitigated

0.9612

4.0186

10.5239

0.0346

3.1224

0.0298

3.1522

0.8345

0.0278

0.8623
3,521.785
8 3,521.785
8 0.1941
3,526.638
1 4.2 Trip Summary Information

4.3 Trip Type Information
Average Daily Trip Rate
Unmitigated
Mitigated
Land Use
Weekday
Saturday
Sunday
Annual VMT
Annual VMT
General Office Building
659.40

81.11 34.62
1,088,772
923,159
Parking Lot

0.00 0.00

0.00 Total
659.40

81.11 34.62
1,088,772
923,159
Miles
Trip %
Trip Purpose %
Land Use
H-W or C-W
H-S or C-C
H-O or C-NW
H-W or C-W
H-S or C-C
H-O or C-NW
Primary
Diverted
Pass-by
General Office Building

7.50 7.50

7.50 33.00

48.00 19.00
77 19
4 Parking Lot

9.50 7.30

7.30 0.00

0.00 0.00
0 0
0 4.4 Fleet Mix
Land Use
LDA
LDT1
LDT2
MDV
LHD1
LHD2
MHD
HHD
OBUS
UBUS
MCY
SBUS
MH
General Office Building

0.598645

0.040929

0.181073

0.106149

0.015683

0.005479

0.016317

0.023976

0.001926

0.001932

0.006016

0.000753

0.001122
Parking Lot

0.598645

0.040929

0.181073

0.106149

0.015683

0.005479

0.016317

0.023976

0.001926

0.001932

0.006016

0.000753

0.001122
CalEEMod Version: CalEEMod.2016.3.2
Date: 11/25/2019 2:59 PM

Page 21 of 26 ends

9257 Montiel Road Office - San Diego County APCD Air District, Winter

5.0 Energy Detail
ROG
NOx
CO
SO2
Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5 Total
Bio- CO2
NBio- CO2
Total CO2
CH4
N2O
CO2e
Category
lb/day
lb/day
NaturalGas
Mitigated

0.0150

0.1363

0.1145

8.2000e-
004

0.0104

0.0104
163.5851
163.5851

3.1400e-
003

3.0000e-
003
164.5572
NaturalGas
Unmitigated

0.0197

0.1788

0.1502

1.0700e-
003

0.0136

0.0136
214.5639
214.5639

4.1100e-
003

3.9300e-
003
215.8389

5.1 Mitigation Measures Energy
Exceed Title 24
Install High Efficiency Lighting
Install Energy Efficient Appliances
Historical Energy Use: N
CalEEMod Version: CalEEMod.2016.3.2
Date: 11/25/2019 2:59 PM

Page 22 of 26 ends

9257 Montiel Road Office - San Diego County APCD Air District, Winter

6.1 Mitigation Measures Area

6.0 Area Detail

5.2 Energy by Land Use - NaturalGas
NaturalGa
s Use
ROG
NOx
CO
SO2
Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2
NBio- CO2
Total CO2
CH4
N2O
CO2e
Land Use
kBTU/yr
lb/day
lb/day
General Office
Building
1823.79

0.0197

0.1788

0.1502

1.0700e-
003

0.0136

0.0136
214.5639
214.5639

4.1100e-
003

3.9300e-
003
215.8389
Parking Lot
0 0.0000

0.0000

0.0000
Total

0.0197

0.1788

0.1502

1.0700e-
003

0.0136

0.0136
214.5639
214.5639

4.1100e-
003

3.9300e-
003
215.8389
Unmitigated
NaturalGa
s Use
ROG
NOx
CO
SO2
Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5 Total
Bio- CO2
NBio- CO2
Total CO2
CH4
N2O
CO2e
Land Use
kBTU/yr
lb/day
lb/day
General Office
Building

1.39047

0.0150

0.1363

0.1145

8.2000e-
004

0.0104

0.0104
163.5851
163.5851

3.1400e-
003

3.0000e-
003
164.5572
Parking Lot
0 0.0000

0.0000

0.0000
Total

0.0150

0.1363

0.1145

8.2000e-
004

0.0104

0.0104
163.5851
163.5851

3.1400e-
003

3.0000e-
003
164.5572
Mitigated
CalEEMod Version: CalEEMod.2016.3.2
Date: 11/25/2019 2:59 PM

Page 23 of 26 ends

9257 Montiel Road Office - San Diego County APCD Air District, Winter

ROG
NOx
CO
SO2
Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5 Total
Bio- CO2
NBio- CO2
Total CO2
CH4
N2O
CO2e
Category
lb/day
lb/day
Mitigated

0.8414

3.0000e-
005

3.6000e-
003

0.0000

1.0000e-
005

7.7000e-
003

2.0000e-
005

8.2000e-
003
Unmitigated

0.8414

3.0000e-
005

3.6000e-
003

0.0000

1.0000e-
005

7.7000e-
003

2.0000e-
005

8.2000e-
003

6.2 Area by SubCategory
ROG
NOx
CO
SO2
Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5 Total
Bio- CO2
NBio- CO2
Total CO2
CH4
N2O
CO2e
SubCategory
lb/day
lb/day
Architectural
Coating

0.1015

0.0000

0.0000
Consumer
Products

0.7395

0.0000

0.0000
Landscaping

3.3000e-
004

3.0000e-
005

3.6000e-
003

0.0000

1.0000e-
005

7.7000e-
003

2.0000e-
005

8.2000e-
003
Total

0.8414

3.0000e-
005

3.6000e-
003

0.0000

1.0000e-
005

7.7000e-
003

2.0000e-
005

8.2000e-
003
Unmitigated
CalEEMod Version: CalEEMod.2016.3.2
Date: 11/25/2019 2:59 PM

Page 24 of 26 ends

9257 Montiel Road Office - San Diego County APCD Air District, Winter

8.1 Mitigation Measures Waste
Institute Recycling and Composting Services

7.1 Mitigation Measures Water

7.0 Water Detail

8.0 Waste Detail

0.1015

0.0000

0.0000
Consumer
Products

0.7395

0.0000

0.0000
Landscaping

3.3000e-
004

3.0000e-
005

3.6000e-
003

0.0000

1.0000e-
005

7.7000e-
003

2.0000e-
005

8.2000e-
003
Total

0.8414

3.0000e-
005

3.6000e-
003

0.0000

1.0000e-
005

7.7000e-
003

2.0000e-
005

8.2000e-
003
Mitigated

9.0 Operational Offroad
Equipment Type
Number
Hours/Day
Days/Year
Horse Power
Load Factor
Fuel Type

10.0 Stationary Equipment
CalEEMod Version: CalEEMod.2016.3.2
Date: 11/25/2019 2:59 PM

Page 25 of 26 ends

9257 Montiel Road Office - San Diego County APCD Air District, Winter

11.0 Vegetation
Fire Pumps and Emergency Generators
Equipment Type
Number
Hours/Day
Hours/Year
Horse Power
Load Factor
Fuel Type
Boilers
Equipment Type
Number
Heat Input/Day
Heat Input/Year
Boiler Rating
Fuel Type
User Defined Equipment
Equipment Type
Number
CalEEMod Version: CalEEMod.2016.3.2
Date: 11/25/2019 2:59 PM

Page 26 of 26 ends

9257 Montiel Road Office - San Diego County APCD Air District, Winter

1.1 Land Usage
Land Uses
Size
Metric
Lot Acreage
Floor Surface Area
Population
General Office Building

32.97 1000sqft

0.40 32,971.00
0 Parking Lot

2.20 Acre

2.20 95,832.00
0 1.2 Other Project Characteristics
Urbanization
Climate Zone
Urban
13 Wind Speed (m/s)
Precipitation Freq (Days)

2.6 40

1.3 User Entered Comments & Non-Default Data

1.0 Project Characteristics
Utility Company
San Diego Gas & Electric
2022
Operational Year
CO2 Intensity
(lb/MWhr)
449.3

0.018
CH4 Intensity
(lb/MWhr)

0.004
N2O Intensity
(lb/MWhr)
9257 Montiel Road Office
San Diego County APCD Air District, Summer
CalEEMod Version: CalEEMod.2016.3.2
Date: 11/25/2019 2:52 PM

Page 1 of 26 ends

9257 Montiel Road Office - San Diego County APCD Air District, Summer

Project Characteristics - Energy intensity factors updated based on SDG&E renewable procurement (
449.3
,

0.018
,

0.004
)
Land Use -
32,971
sf office building
~

2.6 acre site
Construction Phase - Architectural coatings simultaneous with last half of building construction Demolition -
Architectural Coating - SDAPCD Rule 67.0.1
Vehicle Trips -
20 trips/ksf

Page 2 of 26 ends

9257 Montiel Road Office - San Diego County APCD Air District, Summer

10.00 110.00
tblLandUse
LandUseSquareFeet
32,970.00
32,971.00
tblLandUse
LotAcreage

0.76 0.40
tblProjectCharacteristics
CH4IntensityFactor

0.029

0.018
tblProjectCharacteristics
CO2IntensityFactor
720.49
449.3
tblProjectCharacteristics
N2OIntensityFactor

0.006

0.004
tblVehicleTrips
CC_TL

7.30 7.50
tblVehicleTrips
CNW_TL

7.30 7.50
tblVehicleTrips
CW_TL

9.50 7.50
tblVehicleTrips
WD_TR

11.03 20.00
tblWater
IndoorWaterUseRate
5,859,881.67
4,687,905.34
CalEEMod Version: CalEEMod.2016.3.2
Date: 11/25/2019 2:52 PM

Page 3 of 26 ends

9257 Montiel Road Office - San Diego County APCD Air District, Summer

5.9067

20.2360

18.5434

0.0387

6.6345

1.0426

7.5508

3.3893

0.9731

4.2323

0.0000
3,679.031
6 3,679.031
6 0.7693

0.0000
3,692.219
9 Maximum

5.9067

20.2360

18.5434

0.0387

6.6345

1.0426

7.5508

3.3893

0.9731

4.2323

0.0000
3,679.031
6 3,679.031
6 0.7693

0.0000
3,692.219
9 Unmitigated Construction
ROG
NOx
CO
SO2
Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5 Total
Bio- CO2
NBio- CO2
Total CO2
CH4
N2O
CO2e
Year
lb/day
lb/day
2021

5.9067

20.2360

18.5434

0.0387

6.6345

1.0426

7.5508

3.3893

0.9731

4.2323

0.0000
3,679.031
6 3,679.031
6 0.7693

0.0000
3,692.219
9 Maximum

5.9067

20.2360

18.5434

0.0387

6.6345

1.0426

7.5508

3.3893

0.9731

4.2323

0.0000
3,679.031
6 3,679.031
6 0.7693

0.0000
3,692.219
9 Mitigated Construction
ROG
NOx
CO
SO2
Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2
NBio-CO2
Total CO2
CH4
N20
CO2e
Percent
Reduction

0.00 0.00

0.00 0.00
CalEEMod Version: CalEEMod.2016.3.2
Date: 11/25/2019 2:52 PM

Page 4 of 26 ends

9257 Montiel Road Office - San Diego County APCD Air District, Summer

2.2 Overall Operational
ROG
NOx
CO
SO2
Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5 Total
Bio- CO2
NBio- CO2
Total CO2
CH4
N2O
CO2e
Category
lb/day
lb/day
Area

0.8414

3.0000e-
005

3.6000e-
003

0.0000

1.0000e-
005

7.7000e-
003

2.0000e-
005

8.2000e-
003
Energy

0.0197

0.1788

0.1502

1.0700e-
003

0.0136

0.0136
214.5639
214.5639

4.1100e-
003

3.9300e-
003
215.8389
Mobile

0.9921

3.9289

10.5853

0.0365

3.1224

0.0296

3.1520

0.8345

0.0276

0.8621
3,714.552
4 3,714.552
4 0.1921
3,719.354
5 Total

1.8532

4.1077

10.7390

0.0376

3.1224

0.0432

3.1656

0.8345

0.0412

0.8757
3,929.124
0 3,929.124
0 0.1962

3.9300e-
003
3,935.201
7 Unmitigated Operational
ROG
NOx
CO
SO2
Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5 Total
Bio- CO2
NBio- CO2
Total CO2
CH4
N2O
CO2e
Category
lb/day
lb/day
Area

0.8414

3.0000e-
005

3.6000e-
003

0.0000

1.0000e-
005

7.7000e-
003

2.0000e-
005

8.2000e-
003
Energy

0.0150

0.1363

0.1145

8.2000e-
004

0.0104

0.0104
163.5851
163.5851

3.1400e-
003

3.0000e-
003
164.5572
Mobile

0.9382

3.6259

9.3365

0.0314

2.6475

0.0256

2.6731

0.7076

0.0239

0.7315
3,190.967
5 3,190.967
5 0.1693
3,195.199
1 Total

1.7946

3.7622

9.4546

0.0322

2.6475

0.0360

2.6835

0.7076

0.0343

0.7419
3,354.560
2 3,354.560
2 0.1724

3.0000e-
003
3,359.764
5 Mitigated Operational
CalEEMod Version: CalEEMod.2016.3.2
Date: 11/25/2019 2:52 PM

Page 5 of 26 ends

9257 Montiel Road Office - San Diego County APCD Air District, Summer

3.16 8.41

11.96 14.39

15.21 16.55

15.23 15.21

16.71 15.28

0.00 14.62

14.62 12.12

23.66 14.62
Residential Indoor: 0; Residential Outdoor: 0; Non-Residential Indoor: 49,457; Non-Residential Outdoor: 16,486; Striped Parking Area: 5,750 (Architectural Coating
±
sqft)
Acres of Grading (Site Preparation Phase): 4.5
Acres of Grading (Grading Phase): 3
Acres of Paving: 2.2
CalEEMod Version: CalEEMod.2016.3.2
Date: 11/25/2019 2:52 PM

Page 6 of 26 ends

9257 Montiel Road Office - San Diego County APCD Air District, Summer

Phase Name
Offroad Equipment Type
Amount
Usage Hours
Horse Power
Load Factor
Demolition
Concrete/Industrial Saws
1 8.00
81 0.73
Demolition
Rubber Tired Dozers
1 8.00
247

0.40 Demolition
Tractors/Loaders/Backhoes
3 8.00
97 0.37
Site Preparation
Graders
1 8.00
187

0.41 Site Preparation
Scrapers
1 8.00
367

0.48 Site Preparation
Tractors/Loaders/Backhoes
1 7.00
97 0.37
Grading
Graders
1 8.00
187

0.41 Grading
Rubber Tired Dozers
1 8.00
247

0.40 Grading
Tractors/Loaders/Backhoes
2 7.00
97 0.37
Building Construction
Cranes
1 8.00
231

0.42 Paving
Paving Equipment
1 8.00
132

Page 7 of 26 ends

9257 Montiel Road Office - San Diego County APCD Air District, Summer

3.2 Demolition - 2021
ROG
NOx
CO
SO2
Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5 Total
Bio- CO2
NBio- CO2
Total CO2
CH4
N2O
CO2e
Category
lb/day
lb/day
Fugitive Dust

0.2741

0.0000

0.2741

0.0415

0.0000

0.0415

0.0000

0.0000
Off-Road

1.9930

19.6966

14.4925

0.0241

1.0409

0.9715

0.9715
2,322.717
1 2,322.717
1 0.5940
2,337.565
8 Total

1.9930

19.6966

14.4925

0.0241

0.2741

1.0409

1.3150

0.0415

0.9715

1.0130
2,322.717
1 2,322.717
1 0.5940
2,337.565
8 Unmitigated Construction On-Site

0.00 25.00

10.80 7.30

20.00 LD_Mix
HDT_Mix
HHDT
Site Preparation
3 8.00

0.00 0.00

10.80 7.30

20.00 LD_Mix
HDT_Mix
HHDT
Grading
4 10.00

0.00 0.00

10.80 7.30

20.00 LD_Mix
HDT_Mix
HHDT
Building Construction
8 51.00

21.00 0.00

10.80 7.30

20.00 LD_Mix
HDT_Mix
HHDT
Paving
6 15.00

0.00 0.00

10.80 7.30

20.00 LD_Mix
HDT_Mix
HHDT
Architectural Coating
1 10.00

0.00 0.00

10.80 7.30

20.00 LD_Mix
HDT_Mix
HHDT
CalEEMod Version: CalEEMod.2016.3.2
Date: 11/25/2019 2:52 PM

Page 8 of 26 ends

9257 Montiel Road Office - San Diego County APCD Air District, Summer

3.2 Demolition - 2021
ROG
NOx
CO
SO2
Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5 Total
Bio- CO2
NBio- CO2
Total CO2
CH4
N2O
CO2e
Category
lb/day
lb/day
Hauling

9.2800e-
003

0.3204

0.0784

9.6000e-
004

0.0218

9.8000e-
004

0.0228

5.9900e-
003

9.4000e-
004

6.9200e-
003
105.7100
105.7100

9.3400e-
003
105.9435
Vendor

0.0000

0.0000
Worker

0.0450

0.0292

0.3448

1.0600e-
003

0.1068

7.4000e-
004

0.1075

0.0283

6.8000e-
004

0.0290
105.8773
105.8773

3.0200e-
003
105.9529
Total

0.0543

0.3496

0.4232

2.0200e-
003

0.1286

1.7200e-
003

0.1304

0.0343

1.6200e-
003

0.0359
211.5874
211.5874

0.0124
211.8963
Unmitigated Construction Off-Site
ROG
NOx
CO
SO2
Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5 Total
Bio- CO2
NBio- CO2
Total CO2
CH4
N2O
CO2e
Category
lb/day
lb/day
Fugitive Dust

0.2741

0.0000

0.2741

0.0415

0.0000

0.0415

0.0000

0.0000
Off-Road

1.9930

19.6966

14.4925

0.0241

1.0409

0.9715

0.0000
2,322.717
1 2,322.717
1 0.5940
2,337.565
8 Total

1.9930

19.6966

14.4925

0.0241

0.2741

1.0409

1.3150

0.0415

0.9715

1.0130

0.0000
2,322.717
1 2,322.717
1 0.5940
2,337.565
8 Mitigated Construction On-Site
CalEEMod Version: CalEEMod.2016.3.2
Date: 11/25/2019 2:52 PM

Page 9 of 26 ends

9257 Montiel Road Office - San Diego County APCD Air District, Summer

3.2 Demolition - 2021
ROG
NOx
CO
SO2
Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5 Total
Bio- CO2
NBio- CO2
Total CO2
CH4
N2O
CO2e
Category
lb/day
lb/day
Hauling

9.2800e-
003

0.3204

0.0784

9.6000e-
004

0.0218

9.8000e-
004

0.0228

5.9900e-
003

9.4000e-
004

6.9200e-
003
105.7100
105.7100

9.3400e-
003
105.9435
Vendor

0.0000

0.0000
Worker

0.0450

0.0292

0.3448

1.0600e-
003

0.1068

7.4000e-
004

0.1075

0.0283

6.8000e-
004

0.0290
105.8773
105.8773

3.0200e-
003
105.9529
Total

0.0543

0.3496

0.4232

2.0200e-
003

0.1286

1.7200e-
003

0.1304

0.0343

1.6200e-
003

0.0359
211.5874
211.5874

0.0124
211.8963
Mitigated Construction Off-Site

3.3 Site Preparation - 2021
ROG
NOx
CO
SO2
Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2
NBio- CO2
Total CO2
CH4
N2O
CO2e
Category
lb/day
lb/day
Fugitive Dust

1.5908

0.0000

1.5908

0.1718

0.0000

0.1718

0.0000

0.0000
Off-Road

1.5463

18.2862

10.7496

0.0245

0.7019

0.6457

0.6457
2,372.883
2 2,372.883
2 0.7674
2,392.069
2 Total

1.5463

18.2862

10.7496

0.0245

1.5908

0.7019

2.2926

0.1718

0.6457

0.8175
2,372.883
2 2,372.883
2 0.7674
2,392.069
2 Unmitigated Construction On-Site
CalEEMod Version: CalEEMod.2016.3.2
Date: 11/25/2019 2:52 PM

Page 10 of 26 ends

9257 Montiel Road Office - San Diego County APCD Air District, Summer

3.3 Site Preparation - 2021
ROG
NOx
CO
SO2
Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5 Total
Bio- CO2
NBio- CO2
Total CO2
CH4
N2O
CO2e
Category
lb/day
lb/day
Hauling

0.0000

0.0000
Vendor

0.0000

0.0000
Worker

0.0277

0.0180

0.2122

6.5000e-
004

0.0657

4.5000e-
004

0.0662

0.0174

4.2000e-
004

0.0179

65.1553

1.8600e-
003

65.2018
Total

0.0277

0.0180

0.2122

6.5000e-
004

0.0657

4.5000e-
004

0.0662

0.0174

4.2000e-
004

0.0179

65.1553

1.8600e-
003

65.2018
Unmitigated Construction Off-Site
ROG
NOx
CO
SO2
Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5 Total
Bio- CO2
NBio- CO2
Total CO2
CH4
N2O
CO2e
Category
lb/day
lb/day
Fugitive Dust

1.5908

0.0000

1.5908

0.1718

0.0000

0.1718

0.0000

0.0000
Off-Road

1.5463

18.2862

10.7496

0.0245

0.7019

0.6457

0.0000
2,372.883
2 2,372.883
2 0.7674
2,392.069
2 Total

1.5463

18.2862

10.7496

0.0245

1.5908

0.7019

2.2926

0.1718

0.6457

0.8175

0.0000
2,372.883
2 2,372.883
2 0.7674
2,392.069
2 Mitigated Construction On-Site
CalEEMod Version: CalEEMod.2016.3.2
Date: 11/25/2019 2:52 PM

Page 11 of 26 ends

9257 Montiel Road Office - San Diego County APCD Air District, Summer

3.3 Site Preparation - 2021
ROG
NOx
CO
SO2
Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5 Total
Bio- CO2
NBio- CO2
Total CO2
CH4
N2O
CO2e
Category
lb/day
lb/day
Hauling

0.0000

0.0000
Vendor

0.0000

0.0000
Worker

0.0277

0.0180

0.2122

6.5000e-
004

0.0657

4.5000e-
004

0.0662

0.0174

4.2000e-
004

0.0179

65.1553

1.8600e-
003

65.2018
Total

0.0277

0.0180

0.2122

6.5000e-
004

0.0657

4.5000e-
004

0.0662

0.0174

4.2000e-
004

0.0179

65.1553

1.8600e-
003

65.2018
Mitigated Construction Off-Site

3.4 Grading - 2021
ROG
NOx
CO
SO2
Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5 Total
Bio- CO2
NBio- CO2
Total CO2
CH4
N2O
CO2e
Category
lb/day
lb/day
Fugitive Dust

6.5523

0.0000

6.5523

3.3675

0.0000

3.3675

0.0000

0.0000
Off-Road

1.8271

20.2135

9.7604

0.0206

0.9158

0.8425

0.8425
1,995.6114
1,995.6114

0.6454
2,011.7470
Total

1.8271

20.2135

9.7604

0.0206

6.5523

0.9158

7.4681

3.3675

0.8425

4.2100
1,995.611
4 1,995.611
4 0.6454
2,011.747
0 Unmitigated Construction On-Site
CalEEMod Version: CalEEMod.2016.3.2
Date: 11/25/2019 2:52 PM

Page 12 of 26 ends

9257 Montiel Road Office - San Diego County APCD Air District, Summer

3.4 Grading - 2021
ROG
NOx
CO
SO2
Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5 Total
Bio- CO2
NBio- CO2
Total CO2
CH4
N2O
CO2e
Category
lb/day
lb/day
Hauling

0.0000

0.0000
Vendor

0.0000

0.0000
Worker

0.0346

0.0225

0.2652

8.2000e-
004

0.0822

5.7000e-
004

0.0827

0.0218

5.2000e-
004

0.0223

81.4441

2.3200e-
003

81.5022
Total

0.0346

0.0225

0.2652

8.2000e-
004

0.0822

5.7000e-
004

0.0827

0.0218

5.2000e-
004

0.0223

81.4441

2.3200e-
003

81.5022
Unmitigated Construction Off-Site
ROG
NOx
CO
SO2
Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5 Total
Bio- CO2
NBio- CO2
Total CO2
CH4
N2O
CO2e
Category
lb/day
lb/day
Fugitive Dust

6.5523

0.0000

6.5523

3.3675

0.0000

3.3675

0.0000

0.0000
Off-Road

1.8271

20.2135

9.7604

0.0206

0.9158

0.8425

0.0000
1,995.6114
1,995.6114

0.6454
2,011.7470
Total

1.8271

20.2135

9.7604

0.0206

6.5523

0.9158

7.4681

3.3675

0.8425

4.2100

0.0000
1,995.611
4 1,995.611
4 0.6454
2,011.747
0 Mitigated Construction On-Site
CalEEMod Version: CalEEMod.2016.3.2
Date: 11/25/2019 2:52 PM

Page 13 of 26 ends

9257 Montiel Road Office - San Diego County APCD Air District, Summer

3.4 Grading - 2021
ROG
NOx
CO
SO2
Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5 Total
Bio- CO2
NBio- CO2
Total CO2
CH4
N2O
CO2e
Category
lb/day
lb/day
Hauling

0.0000

0.0000
Vendor

0.0000

0.0000
Worker

0.0346

0.0225

0.2652

8.2000e-
004

0.0822

5.7000e-
004

0.0827

0.0218

5.2000e-
004

0.0223

81.4441

2.3200e-
003

81.5022
Total

0.0346

0.0225

0.2652

8.2000e-
004

0.0822

5.7000e-
004

0.0827

0.0218

5.2000e-
004

0.0223

81.4441

2.3200e-
003

81.5022
Mitigated Construction Off-Site

2.0451

16.0275

14.5629

0.0250

0.8173

0.7831

0.7831
2,288.935
5 2,288.935
5 0.4503
2,300.193
5 Total

2.0451

16.0275

14.5629

0.0250

0.8173

0.7831

0.7831
2,288.935
5 2,288.935
5 0.4503
2,300.193
5 Unmitigated Construction On-Site
CalEEMod Version: CalEEMod.2016.3.2
Date: 11/25/2019 2:52 PM

Page 14 of 26 ends

9257 Montiel Road Office - San Diego County APCD Air District, Summer

3.5 Building Construction - 2021
ROG
NOx
CO
SO2
Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5 Total
Bio- CO2
NBio- CO2
Total CO2
CH4
N2O
CO2e
Category
lb/day
lb/day
Hauling

0.0000

0.0000
Vendor

0.0635

2.1384

0.5450

5.6900e-
003

0.1422

4.4900e-
003

0.1467

0.0409

4.3000e-
003

0.0452
611.8391
611.8391

0.0437
612.9320
Worker

0.1764

0.1146

1.3527

4.1700e-
003

0.4190

2.8900e-
003

0.4219

0.1111

2.6700e-
003

0.1138
415.3649
415.3649

0.0119
415.6612
Total

0.2399

2.2530

1.8977

9.8600e-
003

0.5611

7.3800e-
003

0.5685

0.1521

6.9700e-
003

0.1590
1,027.203
9 1,027.203
9 0.0556
1,028.593
2 Unmitigated Construction Off-Site
ROG
NOx
CO
SO2
Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5 Total
Bio- CO2
NBio- CO2
Total CO2
CH4
N2O
CO2e
Category
lb/day
lb/day
Off-Road

2.0451

16.0275

14.5629

0.0250

0.8173

0.7831

0.0000
2,288.935
5 2,288.935
5 0.4503
2,300.193
5 Total

2.0451

16.0275

14.5629

0.0250

0.8173

0.7831

0.0000
2,288.935
5 2,288.935
5 0.4503
2,300.193
5 Mitigated Construction On-Site
CalEEMod Version: CalEEMod.2016.3.2
Date: 11/25/2019 2:52 PM

Page 15 of 26 ends

9257 Montiel Road Office - San Diego County APCD Air District, Summer

3.5 Building Construction - 2021
ROG
NOx
CO
SO2
Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5 Total
Bio- CO2
NBio- CO2
Total CO2
CH4
N2O
CO2e
Category
lb/day
lb/day
Hauling

0.0000

0.0000
Vendor

0.0635

2.1384

0.5450

5.6900e-
003

0.1422

4.4900e-
003

0.1467

0.0409

4.3000e-
003

0.0452
611.8391
611.8391

0.0437
612.9320
Worker

0.1764

0.1146

1.3527

4.1700e-
003

0.4190

2.8900e-
003

0.4219

0.1111

2.6700e-
003

0.1138
415.3649
415.3649

0.0119
415.6612
Total

0.2399

2.2530

1.8977

9.8600e-
003

0.5611

7.3800e-
003

0.5685

0.1521

6.9700e-
003

0.1590
1,027.203
9 1,027.203
9 0.0556
1,028.593
2 Mitigated Construction Off-Site

3.3682

0.0000

0.0000
Off-Road

0.2189

1.5268

1.8176

2.9700e-
003

0.0941

0.0941
281.4481
281.4481

0.0193
281.9309
Total

3.5871

1.5268

1.8176

2.9700e-
003

0.0941

0.0941
281.4481
281.4481

0.0193
281.9309
Unmitigated Construction On-Site
CalEEMod Version: CalEEMod.2016.3.2
Date: 11/25/2019 2:52 PM

Page 16 of 26 ends

9257 Montiel Road Office - San Diego County APCD Air District, Summer

3.6 Architectural Coating - 2021
ROG
NOx
CO
SO2
Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5 Total
Bio- CO2
NBio- CO2
Total CO2
CH4
N2O
CO2e
Category
lb/day
lb/day
Hauling

0.0000

0.0000
Vendor

0.0000

0.0000
Worker

0.0346

0.0225

0.2652

8.2000e-
004

0.0822

5.7000e-
004

0.0827

0.0218

5.2000e-
004

0.0223

81.4441

2.3200e-
003

81.5022
Total

0.0346

0.0225

0.2652

8.2000e-
004

0.0822

5.7000e-
004

0.0827

0.0218

5.2000e-
004

0.0223

81.4441

2.3200e-
003

3.3682

0.0000

0.0000
Off-Road

0.2189

1.5268

1.8176

2.9700e-
003

0.0941

0.0000
281.4481
281.4481

0.0193
281.9309
Total

3.5871

1.5268

1.8176

2.9700e-
003

0.0941

0.0000
281.4481
281.4481

0.0193
281.9309
Mitigated Construction On-Site
CalEEMod Version: CalEEMod.2016.3.2
Date: 11/25/2019 2:52 PM

Page 17 of 26 ends

9257 Montiel Road Office - San Diego County APCD Air District, Summer

3.6 Architectural Coating - 2021
ROG
NOx
CO
SO2
Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5 Total
Bio- CO2
NBio- CO2
Total CO2
CH4
N2O
CO2e
Category
lb/day
lb/day
Hauling

0.0000

0.0000
Vendor

0.0000

0.0000
Worker

0.0346

0.0225

0.2652

8.2000e-
004

0.0822

5.7000e-
004

0.0827

0.0218

5.2000e-
004

0.0223

81.4441

2.3200e-
003

81.5022
Total

0.0346

0.0225

0.2652

8.2000e-
004

0.0822

5.7000e-
004

0.0827

0.0218

5.2000e-
004

0.0223

81.4441

2.3200e-
003

81.5022
Mitigated Construction Off-Site

3.7 Paving - 2021
ROG
NOx
CO
SO2
Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5 Total
Bio- CO2
NBio- CO2
Total CO2
CH4
N2O
CO2e
Category
lb/day
lb/day
Off-Road

1.0633

10.6478

11.7756

0.0178

0.5826

0.5371

0.5371
1,709.1107
1,709.1107

0.5417
1,722.652
4 Paving

0.5764

0.0000

0.0000
Total

1.6397

10.6478

11.7756

0.0178

0.5826

0.5371

0.5371
1,709.110
7 1,709.110
7 0.5417
1,722.652
4 Unmitigated Construction On-Site
CalEEMod Version: CalEEMod.2016.3.2
Date: 11/25/2019 2:52 PM

Page 18 of 26 ends

9257 Montiel Road Office - San Diego County APCD Air District, Summer

3.7 Paving - 2021
ROG
NOx
CO
SO2
Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5 Total
Bio- CO2
NBio- CO2
Total CO2
CH4
N2O
CO2e
Category
lb/day
lb/day
Hauling

0.0000

0.0000
Vendor

0.0000

0.0000
Worker

0.0519

0.0337

0.3979

1.2300e-
003

0.1232

8.5000e-
004

0.1241

0.0327

7.8000e-
004

0.0335
122.1661
122.1661

3.4900e-
003
122.2533
Total

0.0519

0.0337

0.3979

1.2300e-
003

0.1232

8.5000e-
004

0.1241

0.0327

7.8000e-
004

0.0335
122.1661
122.1661

3.4900e-
003
122.2533
Unmitigated Construction Off-Site
ROG
NOx
CO
SO2
Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5 Total
Bio- CO2
NBio- CO2
Total CO2
CH4
N2O
CO2e
Category
lb/day
lb/day
Off-Road

1.0633

10.6478

11.7756

0.0178

0.5826

0.5371

0.0000
1,709.1107
1,709.1107

0.5417
1,722.652
4 Paving

0.5764

0.0000

0.0000
Total

1.6397

10.6478

11.7756

0.0178

0.5826

0.5371

0.0000
1,709.110
7 1,709.110
7 0.5417
1,722.652
4 Mitigated Construction On-Site
CalEEMod Version: CalEEMod.2016.3.2
Date: 11/25/2019 2:52 PM

Page 19 of 26 ends

9257 Montiel Road Office - San Diego County APCD Air District, Summer

4.0 Operational Detail - Mobile

4.1 Mitigation Measures Mobile
Increase Density

3.7 Paving - 2021
ROG
NOx
CO
SO2
Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5 Total
Bio- CO2
NBio- CO2
Total CO2
CH4
N2O
CO2e
Category
lb/day
lb/day
Hauling

0.0000

0.0000
Vendor

0.0000

0.0000
Worker

0.0519

0.0337

0.3979

1.2300e-
003

0.1232

8.5000e-
004

0.1241

0.0327

7.8000e-
004

0.0335
122.1661
122.1661

3.4900e-
003
122.2533
Total

0.0519

0.0337

0.3979

1.2300e-
003

0.1232

8.5000e-
004

0.1241

0.0327

7.8000e-
004

0.0335
122.1661
122.1661

3.4900e-
003
122.2533
Mitigated Construction Off-Site
CalEEMod Version: CalEEMod.2016.3.2
Date: 11/25/2019 2:52 PM

Page 20 of 26 ends

9257 Montiel Road Office - San Diego County APCD Air District, Summer

ROG
NOx
CO
SO2
Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2
NBio- CO2
Total CO2
CH4
N2O
CO2e
Category
lb/day
lb/day
Mitigated

0.9382

3.6259

9.3365

0.0314

2.6475

0.0256

2.6731

0.7076

0.0239

0.7315
3,190.967
5 3,190.967
5 0.1693
3,195.199
1 Unmitigated

0.9921

3.9289

10.5853

0.0365

3.1224

0.0296

3.1520

0.8345

0.0276

0.8621
3,714.552
4 3,714.552
4 0.1921
3,719.354
5 4.2 Trip Summary Information

4.3 Trip Type Information
Average Daily Trip Rate
Unmitigated
Mitigated
Land Use
Weekday
Saturday
Sunday
Annual VMT
Annual VMT
General Office Building
659.40

81.11 34.62
1,088,772
923,159
Parking Lot

0.00 0.00

0.00 Total
659.40

81.11 34.62
1,088,772
923,159
Miles
Trip %
Trip Purpose %
Land Use
H-W or C-W
H-S or C-C
H-O or C-NW
H-W or C-W
H-S or C-C
H-O or C-NW
Primary
Diverted
Pass-by
General Office Building

7.50 7.50

7.50 33.00

48.00 19.00
77 19
4 Parking Lot

9.50 7.30

7.30 0.00

0.00 0.00
0 0
0 4.4 Fleet Mix
Land Use
LDA
LDT1
LDT2
MDV
LHD1
LHD2
MHD
HHD
OBUS
UBUS
MCY
SBUS
MH
General Office Building

0.598645

0.040929

0.181073

0.106149

0.015683

0.005479

0.016317

0.023976

0.001926

0.001932

0.006016

0.000753

0.001122
Parking Lot

0.598645

0.040929

0.181073

0.106149

0.015683

0.005479

0.016317

0.023976

0.001926

0.001932

0.006016

0.000753

0.001122
CalEEMod Version: CalEEMod.2016.3.2
Date: 11/25/2019 2:52 PM

Page 21 of 26 ends

9257 Montiel Road Office - San Diego County APCD Air District, Summer

5.0 Energy Detail
ROG
NOx
CO
SO2
Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5 Total
Bio- CO2
NBio- CO2
Total CO2
CH4
N2O
CO2e
Category
lb/day
lb/day
NaturalGas
Mitigated

0.0150

0.1363

0.1145

8.2000e-
004

0.0104

0.0104
163.5851
163.5851

3.1400e-
003

3.0000e-
003
164.5572
NaturalGas
Unmitigated

0.0197

0.1788

0.1502

1.0700e-
003

0.0136

0.0136
214.5639
214.5639

4.1100e-
003

3.9300e-
003
215.8389

Page 22 of 26 ends

9257 Montiel Road Office - San Diego County APCD Air District, Summer

6.1 Mitigation Measures Area

6.0 Area Detail

5.2 Energy by Land Use - NaturalGas
NaturalGa
s Use
ROG
NOx
CO
SO2
Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5 Total
Bio- CO2
NBio- CO2
Total CO2
CH4
N2O
CO2e
Land Use
kBTU/yr
lb/day
lb/day
General Office
Building
1823.79

0.0197

0.1788

0.1502

1.0700e-
003

0.0136

0.0136
214.5639
214.5639

4.1100e-
003

3.9300e-
003
215.8389
Parking Lot
0 0.0000

0.0000

0.0000
Total

0.0197

0.1788

0.1502

1.0700e-
003

0.0136

0.0136
214.5639
214.5639

4.1100e-
003

1.39047

0.0150

0.1363

0.1145

8.2000e-
004

0.0104

0.0104
163.5851
163.5851

3.1400e-
003

3.0000e-
003
164.5572
Parking Lot
0 0.0000

0.0000

0.0000
Total

0.0150

0.1363

0.1145

8.2000e-
004

0.0104

0.0104
163.5851
163.5851

3.1400e-
003

3.0000e-
003
164.5572
Mitigated
CalEEMod Version: CalEEMod.2016.3.2
Date: 11/25/2019 2:52 PM

Page 23 of 26 ends

9257 Montiel Road Office - San Diego County APCD Air District, Summer

ROG
NOx
CO
SO2
Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5 Total
Bio- CO2
NBio- CO2
Total CO2
CH4
N2O
CO2e
Category
lb/day
lb/day
Mitigated

0.8414

3.0000e-
005

3.6000e-
003

0.0000

1.0000e-
005

7.7000e-
003

2.0000e-
005

8.2000e-
003
Unmitigated

0.8414

3.0000e-
005

3.6000e-
003

0.0000

1.0000e-
005

7.7000e-
003

2.0000e-
005

8.2000e-
003

0.1015

0.0000

0.0000
Consumer
Products

0.7395

0.0000

0.0000
Landscaping

3.3000e-
004

3.0000e-
005

3.6000e-
003

0.0000

1.0000e-
005

7.7000e-
003

2.0000e-
005

8.2000e-
003
Total

0.8414

3.0000e-
005

3.6000e-
003

0.0000

1.0000e-
005

7.7000e-
003

2.0000e-
005

8.2000e-
003
Unmitigated
CalEEMod Version: CalEEMod.2016.3.2
Date: 11/25/2019 2:52 PM

Page 24 of 26 ends

9257 Montiel Road Office - San Diego County APCD Air District, Summer

8.1 Mitigation Measures Waste
Institute Recycling and Composting Services

7.1 Mitigation Measures Water

7.0 Water Detail

8.0 Waste Detail

0.1015

0.0000

0.0000
Consumer
Products

0.7395

0.0000

0.0000
Landscaping

3.3000e-
004

3.0000e-
005

3.6000e-
003

0.0000

1.0000e-
005

7.7000e-
003

2.0000e-
005

8.2000e-
003
Total

0.8414

3.0000e-
005

3.6000e-
003

0.0000

1.0000e-
005

7.7000e-
003

2.0000e-
005

8.2000e-
003
Mitigated

9.0 Operational Offroad
Equipment Type
Number
Hours/Day
Days/Year
Horse Power
Load Factor
Fuel Type

10.0 Stationary Equipment
CalEEMod Version: CalEEMod.2016.3.2
Date: 11/25/2019 2:52 PM

Page 25 of 26 ends

9257 Montiel Road Office - San Diego County APCD Air District, Summer

Page 26 of 26 ends

9257 Montiel Road Office - San Diego County APCD Air District, Summer

San Marcos City CouncilJanuary 24, 2023

San Marcos City Council
January 24, 2023