City of Santa Clara. 2010-2035 General Plan Integrated Final Environmental Impact Report. SCH# 2008092005. January 2011. Pages 206 to 207.
City of Santa Clara. 2010-2035 General Plan Integrated Final Environmental Impact Report. SCH# 2008092005. January 2011. Pages 209.
City of Santa Clara. 2010-2035 General Plan Integrated Final Environmental Impact Report. SCH# 2008092005. January 2011. Page 207.
City of Santa Clara. 2010-2035 General Plan Integrate EIR. Page 183. January 2011.
City of Santa Clara. 2010-2035 General Plan Integrate EIR. Page 184-186. January 2011.
City of Santa Clara. 2010-2035 General Plan Integrated FEIR. January 2011. Page 208
City of Santa Clara. 2010-2035 General Plan Integrated Final EIR. January 2011.
City of Santa Clara. 2010-2035 General Plan. December 2014.
City of Santa Clara. 2020 Urban Water Management Plan, City of Santa Clara Water Utility.
Adopted June 22, 2021.
City of Santa Clara. 2020 Urban Water Management Plan, City of Santa Clara Water Utility.
Adopted June 22, 2021.
City of Santa Clara. 2020 Urban Water Management Plan. June 22, 2021.
City of Santa Clara. General Plan 2010-2035 Integrated EIR. Page 327. January 2011
County of Santa Clara. Williamson Act Properties Geodatabase. Accessed June 9, 2022. https://sccplanning.maps.arcgis.com/apps/webappviewer/index.html?id=1f39e32b4c0644b0915354c 3e59778ce.
Enrollment projection consultants. Projected Enrollments January 17, 2020. Page 16.
Illingworth and Rodkin. 2655 The Alameda Noise and Vibration Assessment. September 19, 2022.
2655 The Alameda Mixed Use Project 137 Initial Study
City of Santa Clara April 2022
Illingworth and Rodkin. the 2655 The Alameda Residential Development Construction Community Risk Assessment. September 21, 2022.
North, Daniel. General Manager, Republic Services. Personal communications. November 14, 2019.
Office of Planning and Research. “Revised Proposal on Updates to the CEQA Guidelines on Evaluating Transportation Impacts in CEQA.” January 20, 2016. Accessed July 6, 2022. https://www.opr.ca.gov/docs/Revised_VMT_CEQA_Guidelines_Proposal_January_20_2016.pdf.
San Francisco Bay Regional Water Quality Control Board. Municipal Regional Stormwater Permit, Provision C.12. November 19, 2015.
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Silicon Valley Power. “Green Power for your Home.” Accessed July 11, 2022. https://www.siliconvalleypower.com/sustainability/santa-clara-green-power/green-power-for-your- home.
Tetra tech. Geotechnical Design Report. May 26, 2022.
United States Department of Agriculture. Web Soil Survey. Accessed July 20, 2022.
United States Department of Energy. Energy Independence & Security Act of 2007. Accessed July 20, 2022. http://www.afdc.energy.gov/laws/eisa.
United States Department of the Interior. “Memorandum M-37050. The Migratory Bird Treaty Act Does Not Prohibit Incidental Take.” Accessed July 6, 2022. https://www.doi.gov/sites/doi.gov/files/uploads/m-37050.pdf.
United States Department of Transportation. USDOT Announces New Vehicle Fuel Economy Standards for Model Year 2024-2026.” Accessed July 20, 2022. https://www.nhtsa.gov/press- releases/usdot-announces-new-vehicle-fuel-economy-standards-model-year-2024-2026.
United States Energy Information Administration. “State Profile and Energy Estimates, 2020.” Accessed July 5, 2022. https://www.eia.gov/state/?sid=CA#tabs-2.
United States Environmental Protection Agency. “Summary of the Resource Conservation and Recovery Act.” Accessed July 11, 2022. https://www.epa.gov/laws-regulations/summary-resource- conservation-and-recovery-act.
United States Environmental Protection Agency. “Superfund: CERCLA Overview.” Accessed July 11, 2022. https://www.epa.gov/superfund/superfund-cercla-overview.
United States Environmental Protection Agency. “The 2021 EPA Automotive Trends Report:
Greenhouse Gas Emissions, Fuel Economy, and Technology since 1975.” November 2021. https://nepis.epa.gov/Exe/ZyPDF.cgi?Dockey=P1010U68.pdf.
2655 The Alameda Mixed Use Project 138 Initial Study
City of Santa Clara April 2022
Valley Water. Anderson Dam Inundation Zone Map. Sheet 11. November 2019.
Valley Water. Lexington Dam Inundation Zone Map. Sheet 21. November 2019.
2655 The Alameda Mixed Use Project 139 Initial Study
City of Santa Clara April 2022
SECTION 6.0 LEAD AGENCY AND CONSULTANTS
LEAD AGENCY
City of Santa Clara
Debby Fernandez
City of Santa Clara Planning Department
CONSULTANTS
David J. Powers & Associates, Inc.
Environmental Consultants and Planners
Shannon George – Principal Project Manager
Patrick Kallas – Project Manager
Ryan Osako – Graphic Artist
Illingworth and Rodkin
Air Quality and Noise Consultants
Hexagon Transportation Consultants
Transportation Analysis
Archaeological/Historical Consultants
Archeological Report
Tetra Tech
Hazardous Materials Consultant
2655 THE ALAMEDA
RESIDENTIAL DEVELOPMENT
CONSTRUCTION COMMUNITY
RISK
ASSESSMENT
Santa Clara, California
September 21, 2022
Prepared for:
Patrick Kallas
Project Manager
David J. Powers & Associates, Inc.
1871 The Alameda, Suite 200
San José, CA 95126
Prepared by:
Casey Divine
James Reyff
429 East Cotati Avenue
Cotati, CA 94931
(707) 7
94-0400
I&R Project#: 22-122
1 Introduction
The purpose of this report is to address the potential community risk impacts associated with the construction of a proposed residential development located at 2 655 The Alameda in Santa Clara, California. The air quality impacts from this project would be associated with demolition of the existing land uses and construction of the residential building. Air pollutant emissions associated with construction of the project w ere predicted using appropria te computer models. In addition, the potential health risk impacts from existing toxic air conta minant (TAC) sources affecting the nearby and proposed sensitive receptors were evaluated. The ana lysis was conducted following guidance provided by the Bay Area Air Quality Management District (BAAQMD). 1 Project Description
The project site lies where The Alameda and Park Avenue meet Be llomy Street in Santa Clara, CA. The proposed project would develop the vacant 0.4-acre proj ect site with a four-story mixed-use development includi ng 39 residential units and 1,540 square feet (sf) of retail space.
The the site would be provided in one, subgrade parking level with 23 spaces and surface parking with 10 spaces, for a total of 33 parking spaces.
Setting
The project is located in Santa Clara County, which is in the S an Francisco Bay Area Air Basin.
Ambient air quality standards have been established at both the State and federal level. The Bay Area meets all ambient air quality standards with the exception of ground-level ozone, respirable particulate matter (PM
10), and fine particulate matter (PM2.5).
Air Pollutants of Concern
High ozone levels are caused by the cumulative emissions of rea ctive organic gases (ROG) and nitrogen oxides (NO
X). These precursor pollutants re act under certain meteorologica l conditions to form high ozone levels. Contro lling the emissions of these p recursor pollutants is the focus of the Bay Area’s attempts to reduc e ozone levels. The highest ozo ne levels in the Bay Area occur in the eastern and southern inland valleys that are downwind of air pollutant sources. High ozone levels aggravate respiratory and cardiovascular diseases, reduc ed lung function, and increase coughing and chest discomfort.
Particulate matter is another pr oblematic air pollutant of the Bay Area. Particulate matter is assessed and measured in terms of respirable particulate matter or particles that have a diameter of 10 micrometers or less (PM
10) and fine particulate matter where particles have a diameter o f
2.5 micrometers or less (PM2.5). Elevated concentrations of PM10 and PM2.5 are the result of both region-wide (or cumulative) e missions and localized emissions. High particulate matter levels aggravate respiratory and cardi ovascular diseases, reduce lung function, increase mortality (e.g., lung cancer), and result in reduced lung function growth in children.
1 Bay Area Air Quality Management District, CEQA Air Quality Guidelines, May 2017.
2 Toxic Air Contaminants
Toxic air contaminants (TAC) a re a broad class of compounds kno wn to cause morbidity or mortality, often because they cause cancer. TACs are found in a mbient air, especially in urban areas, and are caused by industry, agriculture, fuel combustion, and commercial operations (e.g., dry cleaners). TACs are typically found in low concentrations, even near their source (e.g., diesel particulate matter [DPM] near a freeway). Because chronic expos ure can result in adverse health effects, TACs are regulated at the regional, State, and federal level.
Diesel exhaust is the predominant TAC in urban air and is estim ated to represent about three- quarters of the cancer risk from TACs (based on the Bay Area av erage). According to the California Air Resources Board ( CARB), diesel exhaust is a comp lex mixture of gases, vapors, and fine particles. This complexity makes the evaluation of hea lth effects of diesel exhaust a complex scientific issue. Some of the chemicals in diesel exhau st, such as benzene and formaldehyde, have been previously identified as TACs by the CA RB, and are listed as carcinogens either under the State's Proposition 65 or under the Federal Hazardous Air Pollutants programs. Health risks from TACs are estimated using the Office of Environmental Health Hazard Assessment (OEHHA) risk assessment guidelines, which wer e published in February of 2015.
2 See Attachment 1 for a detailed description of the community risk modeling methodology used in this assessment.
Sensitive Receptors
There are groups of people more affected by air pollution than others. CARB has identified the following persons who are most likely to be affected by air pol lution: children under 16, the elderly over 65, athletes, and pe ople with cardiovascular and c hronic respiratory diseases. These groups are classified as sensitive receptors. Locations that ma y contain a high concentration of these sensitive population groups include residential areas, hospitals, daycare facilities, elder care facilities, and elementary school s. For cancer risk assessments , children are the most sensitive receptors, since they are more susceptible to cancer causing TA Cs. Residential locations are assumed to include infants and small children. The closest sens itive receptors to the project site are the residents in the single-family homes to the west, the m ulti-family housing for Santa Clara University to the east, and the Kids On Campus Preschool to the north of the project site.
Additional sensitive receptors ar e located at further distances surrounding the site. This project would introduce new sensitive receptors (i.e., residents) to the area.
Regulatory Setting
Federal Regulations
The United States Environmental Protection Agency (EPA) sets na tionwide emission standards for mobile sources, which include on-road (highway) motor vehic les such trucks, buses, and automobiles, and non-road (off-ro ad) vehicles and equipment use d in construction, agricultural,
2 OEHHA, 2015. Air Toxics Hot Spots Program Risk Assessment Guidelines, The Air Toxics Hot Spots Program Guidance Manual for Preparation of Health Risk Assessments. Office of Environmental Health Hazard Assessment.
February.
3 industrial, and mining activities (such as bu lldozers and loaders). The EPA also sets nationwide fuel standards. California also has the ability to set motor ve hicle emission standards and standards for fuel used in California, as long as they are the same or more stringent than the federal standards.
In the past decade, the EPA has established a number of emissio n standards for on- and non-road heavy-duty diesel engines used in trucks and other equipment. T his was done in part because diesel engines are a significant source of NO
X and particulate matter (PM 2.5) and because the
EPA has identified DPM as a pr obable carcinogen. Implementation of the heavy-duty diesel on- road vehicle standards and the non-road diesel engine standards a r e e s t i m a t e d t o r e d u c e particulate matter and NO X emissions from diesel engines up to 95 percent in 2030 when th e heavy-duty vehicle fleet is completely replaced with newer heavy-duty vehicles that comply with these emission standards.3
In concert with the diesel engi ne emission standards, the EPA h as also substantially reduced the amount of sulfur allowed in diesel fuels. The sulfur contained in diesel fuel is a significant contributor to the formation of particulate matter in diesel-fu eled engine exhaust. The new standards reduced the amount of sulfur allowed by 97 percent fo r highway diesel fuel (from 500 parts per million by weight [ppmw] to 15 ppmw), and by 99 perce nt for off-highway diesel fuel (from about 3,000 ppmw to 15 ppmw). The low sulfur highway fuel (15 ppmw sulfur), also called ultra-low sulfur diesel (ULSD), is currently required for use by all vehicles in the U.S.
All of the above federal diesel engine and diesel fuel requirem ents have been adopted by California, in some cases with modifications making the require ments more stringent or the implementation dates sooner.
State Regulations
To address the issue of diesel emissions in the state, CARB dev eloped the Risk Reduction Plan to Reduce Particulate Matter Emissions from Diesel-Fueled Engines and Vehicles . 4 In addition
to requiring more stringent emis sion standards for new on-road and off-road mobile sources and stationary diesel-fueled engines to reduce particulate matter e missions by 90 percent, a significant component of the plan involves application of emiss ion control strategies to existing diesel vehicles and equipment. Many Plan measures have been app roved and adopted, including the federal on-road and non-road diesel engine emission standards for new engines, and adoption of regulations for low sulfur fuel in California.
CARB has adopted and implemented a number of additional regulat ions for stationary and mobile sources to reduce emissions of DPM. Several of these regulatory programs affect medium and heavy-duty diesel trucks that represent the bulk of DPM emi ssions from California highways. CARB regulations require on-road diesel trucks to be retrofitted with particulate matter controls or replaced to meet 2010 or later engine standa rds that have much lower DPM
3 USEPA, 2000. Regulatory Announcement, Heavy-Duty Engine and Vehicle Standards and Highway Diesel Fuel Sulfur Control Requirements. EPA420-F-00-057. December. 4 California Air Resources Board, 2000. Risk Reduction Plan to Reduce Particulate Matter Emissions from Diesel- Fueled Engines and Vehicles. October.
4 and PM2.5 emissions. This regulation will substantially reduce these emi ssions between 2013 and 2023. While new trucks and buses will meet strict federal s tandards, CARB’s program is intended to accelerate the rate at which the fleet either turns over so there are more cleaner vehicles on the road or is retrofitted to meet similar standard s. With this regulation, older, more polluting trucks would be removed from the roads sooner.
CARB has also adopted and impleme nted regulations to reduce DPM and NO X emissions from
in-use (existing) and new off-road heavy-duty diesel vehicles ( e.g., loaders, tractors, bulldozers, backhoes, off-highway trucks, etc.). The regulations apply to d iesel-powered off-road vehicles with engines 25 horsepower (hp) o r greater. The regulations are intended to reduce particulate matter and NO X exhaust emissions by requiring owners to turn over their fleet (replace older equipment with newer equipment) or retrofit existing equipment in order to achieve specified fleet-averaged emission rates. Implementation of this regulatio n, in conjunction with stringent federal off-road equipment engine emission limits for new vehic les, will significantly reduce emissions of DPM and NOX.
Bay Area Air Quality Management District (BAAQMD)
BAAQMD has jurisdiction over an approximately 5,600-square mile area, commonly referred to as the San Francisco Bay Area (Bay Area). The District’s bounda ry encompasses the nine San Francisco Bay Area counties, inc luding Alameda County, Contra C osta County, Marin County, San Francisco County, San Mateo County, Santa Clara County, Nap a County, southwestern Solano County, and southern Sonoma County.
BAAQMD is the lead agency in d eveloping plans to address attain ment and maintenance of the National Ambient Air Quality Sta ndards (NAAQS) and California A mbient Air Quality Standards (CAAQS). The District also has permit authority over most types of stationary equipment utilized for the propos ed project. The BAAQMD is resp onsible for permitting and inspection of stationary sources; enforcement of regulations, including setting fees, levying fines, and enforcement actions; and ensuring that public nuisances are minimized.
BAAQMD’s Community Air Risk Evaluation (CARE) program was initiated in 2004 to evaluate and reduce health risks associat ed with exposures to outdoor TA Cs in the Bay Area. 5 The
program examines TAC emissions from point sources, area sources , and on-road and off-road mobile sources with an emphasis on diesel exhaust, which is a m ajor contributor to airborne health risk in California. The CARE program is an on-going prog ram that encourages community involvement and input. The technical analysis portion of the CARE program is being implemented in three phases that includes an assessment of the sources of TAC emissions, modeling and measurement programs to estimate concentrations of TAC, and an assessment of exposures and health risks. Thr oughout the program , information derived from the technical analyses will be used to focus e mission reduction measures in a reas with high TAC exposures and high density of sensitive populations. Risk reduction activ ities associated with the CARE program are focused on the most at-risk communities in the Bay Area. The BAAQMD defines overburdened communities as areas located (i) within a census t ract identified by the California
5 See BAAQMD: https://www.baaqmd.gov/community-health/community-health-protection-program/community- air-risk-evaluation-care-program , accessed 2/18/2021.
5 Communities Environmental Health Screening Tool (CalEnviroScree n), Version 4.0 implemented by OEHHA, as having an overall CalEnviroScreen scor e at or above the 70 th percentile, or (ii) within 1,000 feet of any such census tract. 6 The BAAQMD has identified six communities as impacted: Concor d, Richmond/San Pablo, Western A lameda County, San José, Redwood City/East Palo Alto, and Eastern San Francisco. The project site is within the San José CARE area but not within a BAAQM D overburdened area as identifi ed by CalEnviroScreen as the Project site is scored at the 46th percentile.7
The BAAQMD California Environmental Quality Act ( CEQA) Air Quality Guidelines 8 w e r e
prepared to assist in the evaluation of air quality impacts of projects and plans proposed within the Bay Area. The guidelines provide recommended procedures for evaluating potential air impacts during the environmental review process consistent with California Environmental Quality Act (CEQA) requirements including thresholds of significance, mitigation measures, and background air quality information. They also include assessmen t methodologies for TACs, odors, and greenhouse gas (GHG) emissions. Attachment 1 includes detailed community risk modeling methodology.
City of Santa Clara 2010 – 2035 General Plan.
On November 16, 2010, the City of Santa Clara adopted the City of Santa Clara 2010 – 2035 General Plan.
9 The general plan includes goals, policies, and actions to reduc e air pollutants and exposure to toxic air containments. The following goals, polic ies, and actions are applicable to the proposed project and this assessment:
5.10.2 Air Quality Goals
5.10.2-G1 Improved air quality in Sa nta Clara and the region.
5.10.2-G2 Reduced greenhouse gas emission s that meet the State and reg ional goals and requirements to combat climate change.
5.10.2 Air Quality Policies
5.10.2-P3 Encourage implementation of t echnological advances that minimize public health hazards and reduce the generation of air pollutants.
5.10.2-P4 Encourage measures to reduce greenhouse gas emissions to rea ch 30 percent below 1990 levels by 2020.
5.10.2-P6 Require “Best Management Pr actices” for construction dust abatement.
Significance Thresholds
6 See BAAQMD: https://www.baaqmd.gov/~/media/dotgov/files/rules/reg-2-permits/2021- amendments/documents/20210722_01_appendixd_mapsofoverburdenedcommunities-pdf.pdf?la=en , accessed 10/1/2021.
7 OEHAA, CalEnviroScreen 4.0 Maps https://oehha.ca.gov/calenviroscreen/report/calenviroscreen-40 8 Bay Area Air Quality Management District, 2017. CEQA Air Quality Guidelines. May. 9 City of Santa Clara, 2010. City of Santa Clara 2010 – 2035 General Plan. November. Web:
https://www.santaclaraca.gov/home/showdocument?id=56139
6 In June 2010, BAAQMD adopted thresholds of significance to assi st in the review of projects under CEQA and these significance thresholds were contained in the District’s 2011 CEQA Air Quality Guidelines. These thresholds were designed to establish the level at which BAAQMD believed air pollution emissions would cause significant enviro nmental impacts under CEQA.
The thresholds were challenged through a series of court challe nges and were mostly upheld.
BAAQMD updated the CEQA Air Quality Guidelines in 2017 to inclu de the latest significance thresholds, which were used in this analysis and are summarized in Table 1. Impacts above these thresholds are considered potentially significant.
Table 1. BAAQMD CEQA Significance Thresholds
Criteria Air Pollutant Construction Thresholds
Health Risks and
Hazards
Single Sources Within
1,000-foot Zone of
Influence
Combined Sources (Cumulative from all
sources within 1000-foot zone of influence)
Excess Cancer Risk 10 per one million 100 per one million Hazard Index 1.0 10.0
Incremental annual PM2.5 0 . 3 µ g / m 3 0 . 8 µ g / m 3 Note: PM10 = course particulate matter or particulates with an aerodynamic diameter of 10 micrometers (µm) or less, PM2.5 = fine particulate matter or particulates with an aerodynamic diameter of 2.5µm or less.
Construction Impacts and Mitigation Measures
Project impacts related to increased community risk can occur e ither by generating emissions of TACs and air pollutants and by i ntroducing a new sensitive rece ptor in proximity to an existing source of TACs. Temporary projec t construction activity would g enerate emissions of DPM from equipment and trucks and also generate dust on a temporary basis that could affect nearby sensitive receptors.
A community health risk assessment was prepared to address proj ect construction impacts on the surrounding off-site sensitive receptors. Additionally, the pro ject could introduce new residents that are sensitive receptors, who would be exposed to existing sources of TACs and localized air pollutants in the vicinity of the project. Therefore, the impac t of the existing sources of TAC upon the existing sensitive receptors and new incoming sensitive receptors was assessed.
Community risk impacts are addressed by predicting increased li fetime cancer risk, the increase in annual PM
2.5 concentrations, and computing the Hazard Index (HI) for non-cancer health risks.
Construction equipment and asso ciated heavy-duty truck traffic generates diesel exhaust, which is a known TAC. These exhaust emissions pose health risks for s ensitive receptors such as surrounding residents. The primar y community risk impact issues associated with construction emissions are cancer risk and exposure to PM 2.5. A health risk assessment of the project construction activities was conduc ted that evaluated potential health effects to nearby sensitive receptors from construction emissions of DPM and PM 2.5.10 This assessment included dispersion
10 DPM is identified by California as a toxic air contaminant due to the potential to cause cancer.
7 modeling to predict the offsite and onsite concentrations resul ting from project construction, so that lifetime cancer risks and non-cancer health effects could be evaluated. The methodology for computing community risks impacts is contained in Attachment 1.
Construction Period Emissions
The California Emissions Estimator Model (CalEEMod) Version 202 0.4.0 was used to estimate emissions from on-site construction activity, construction vehi cle trips, and evaporative emissions. The project land use types and size, and anticipated construction schedule were input to CalEEMod. The CARB EMission FACtors 2021 (EMFAC2021) model w as used to predict emissions from construction traffi c, which includes worker trav el, vendor trucks, and haul trucks.
11 The CalEEMod model output along with construction inputs are included in Attachment 2 and EMFAC2021 vehicle emissions modeling outputs are included in Attachment 3.
CalEEMod Modeling
Land Use Inputs
The proposed project land uses were entered into CalEEMod as described in Table 2.
Table 2. Summary of Project Land Use Inputs
Project Land Uses Size Units Square Feet (sf) Acreage
Apartments Mid Rise 28 Dwelling Unit 27,860
0.40 Strip Mall 1.54 1,000-sf 1,540
Enclosed Parking with Elevator 23 Parking Space 14,200
Parking Lot 10 Parking Space 5,400
Construction Inputs
CalEEMod computes annual emissions for construction that are ba sed on the project type, size, and acreage. The model provides e mission estimates for both on- site and off-site construction activities. On-site activities are primarily made up of constru ction equipment emissions, while off-site activity includes worker, hauling, and vendor traffic. The construction build-out scenario, including equipment list and sche dule, were based on project-sp ecific construction information provided by the project applicant.
The project construction equipment worksheet provided by the ap plicant included the schedule for each phase (included in Attachment 2). Within each phase, the quantity of equipment to be used along with the average hours per day and total number of workdays were based on provided information. Since different equipment would have different est imates of the working days per phase, the hours per day for each phase was computed by dividin g the total number of hours that the equipment would be used by the total number of days in that phase. The construction schedule assumed that the earlie st possible start date would be September 2023 and would be primarily built out over a period of approximately 17 months, or 375 construction workdays.
11 See CARB’s EMFAC2021 Emissions Inventory at https://arb.ca.gov/emfac/emissions-inventory.
8 Construction Truck Traffic Emissions
Construction would produce traffi c in the form of worker trips and truck traffic. The traffic- related emissions are based on worker and vendor trip estimates produced by CalEEMod and haul trips that were computed based on the soil material import ed and/or exported to the site and the estimate of concrete and as phalt truck trips. CalEEMod prov ides daily estimates of worker and vendor trips for each applicable phase. The total trips for t h o s e w e r e c o m p u t e d b y multiplying the daily trip rate by the number of days in that p hase. Haul trips for grading were estimated from provided grading volumes by assuming each truck could carry 10 tons per load.
The number of concrete and asphalt total round haul trips were estimated for the project and converted to total one-way trips, assuming two trips per delivery.
The latest version of the CalEEMod model is based on the older version of the CARB EMFAC2017 motor vehicle emission factor model. This model has b een superseded by the EMFAC2021 model; however, CalEEMod has not been updated to incl ude EMFAC2021.
Therefore, the construction traffic information was combined wi th EMFAC2021 motor vehicle emissions factors. EMFAC2021 provi des aggregate emission rates in grams per mile for each vehicle type. The vehicle mix for this study was based on CalEEMod default assumptions, where worker trips are assumed to be co mprised of light-duty autos (E MFAC category LDA) and light duty trucks (EMFAC category LDT1 and LDT2). Vendor trips are com prised of delivery and large trucks (EMFAC category MHDT and HHDT) and haul trips, inc luding concrete trucks, are comprised of large trucks (EMFAC category HHDT). Travel distanc es are based on CalEEMod default lengths, which are 10.8 miles for worker travel, 7.3 mi les for vendor trips and 20 miles for hauling (soil import/export) . Since CalEEMod does not addre ss concrete trucks, these were treated as vendor travel distances . Each trip was assumed to in clude an idle time of 5 minutes.
Emissions associated with vehicl e starts were also included. On road emissions in Santa Clara County for the year 2023 - 2025 wer e used in these calculations . Table 3 provides the traffic inputs that were combined with the EMFAC2021 emission database to compute vehicle emissions.
9 Table 3. Construction Traffic Da ta Used for EMFAC2021 Model Runs CalEEMod Run/Land
Uses and Construction
Phase
Trips by Trip Type
Notes
Total
Worker1
Total
Vendor1
Total
Haul2
Vehicle mix1
50% LDA
25% LDT1
25% LDT2
50% MHDT
50% HHDT 100% HHDT
Trip Length (miles) 10.8 7.3 20.0 (Demo/Soil)
7.3 (Concrete/Asphalt)
CalEEMod default distance
with 5-min truck idle time.
Site Preparation 3 - - CalEEMod default worker
trips.
Grading 352 - 925
7,400-cy soil export.
CalEEMod default worker
trips.
Trenching 992 - 430
215 concrete-truck round
trips. CalEEMod default
worker trips.
Building Construction 6,031 1,304 112
56 concrete-truck round
trips. CalEEMod default
worker and vendor trips.
Architectural Coating 966 - - CalEEMod default worker
trips.
Paving 420 - 8
35-cy asphalt hauling
CalEEMod default worker
trips.
Notes: 1 Based on 2023 – 2025 EMFAC2021 light-duty vehicle fleet mix for Santa Clara County. 2 Includes grading trips estimated by CalEEMod based on amount of material to be removed. Concrete and asphalt trips estimated based on data provided by the applicant.
Community Health Risk from Project Construction
Construction Emissions
The CalEEMod model and EMFAC2021 emissions provided total annua l PM 10 exhaust emissions (assumed to be DPM) for the off-road construction equ ipment and for exhaust emissions from on-road vehicles, with total emissions from all construction stages as 0.02 tons (49 pounds). The on-road emissions are a result of haul truck t ravel during grading activities, worker travel, and vendor deliveries during construction. A trip length of half a mile was used to represent vehicle travel while at or near the construction site. It was assumed that these emissions from on-road vehicles traveling at or near the site would occur at the construction site. Fugitive PM2.5 dust emissions were calculated by CalEEMod as less than 0.01 t ons (1 pounds) for the overall construction period.
Dispersion Modeling
The U.S. EPA AERMOD dispersion model was used to predict DPM an d PM
2.5 concentrations
at sensitive receptors (i.e., residences, preschool) in the vic inity of the project construction area.
The AERMOD dispersion model is a BAAQMD-recommended model for u se in modeling
10 analysis of these types of emission activities for CEQA project s. 12,13 Emission sources for the construction site were grouped in to two categories: exhaust emi ssions of DPM and fugitive PM2.5 dust emissions.
Construction Sources
To represent the construction equipment exhaust emissions, an a rea source emission release height of 20 feet (6 meters) was used for the area sources. 14 The release height incorporates both
the physical release height from the construction equipment (i. e., the height of the exhaust pipe) and plume rise after it leaves the exhaust pipe. Plume rise is due to both the high temperature of the exhaust and the high velocit y of the exhaust gas. It should be noted that when modeling an area source, plume rise is not calculated by the AERMOD dispers ion model as it would be for a point source (exhaust stack). Ther efore, the release height fro m an area source used to represent emissions from sources with plume rise, such as construction eq uipment, should be based on the height the exhaust plume is expected to achieve, not just the height of the top of the exhaust pipe.
Emissions from vehicle travel on- and off-site were distributed among the exhaust emission area sources throughout the site.
For modeling fugitive PM
2.5 emissions, a near-ground level release height of 7 feet (2 met ers) was used for the area source. Fugitive dust emissions at construction sites come from a variety of sources, including truck and equi pment travel, grading activiti es, truck loading (with loaders) and unloading (rear or bottom dumping), loaders and excavators moving and transferring soil and other materials, etc. All of these activities result in fug itive dust emissions at various heights at the point(s) of generation. Once generated, the dust plume w ill tend to rise as it moves downwind across the site and exit the site at a higher elevatio n than when it was generated. For all these reasons, a 7-foot releas e height was used as the aver age release height across the construction site. Emissions from the construction equipment an d on-road vehicle travel were distributed throughout the modeled area sources. Figure 1 shows the project construction site and receptors.
AERMOD Inputs and Meteorological Data
The modeling used a five-year data set (2013 – 2017) of hourly meteorological data from San José Airport prepared for use wi th the AERMOD model by BAAQMD. Construction emissions were modeled as occurring daily between 6:00 a.m. to 6:00 p.m., when the majority of construction activity is expected to occur. Annual DPM and PM
2.5 concentrations from
construction activities during the 2023 – 2025 period were calc ulated using the model. DPM and PM2.5 concentrations were calculated at nearby sensitive receptors. Receptor heights of 5 feet (1.5 meters) and 15 feet (4.5 mete rs) were used to represent th e breathing height on the first and
12 BAAQMD, 2012, Recommended Methods for Screening and Modeling Local Risks and Hazards, Version 3.0.
May. Web: https://www.baaqmd.gov/~/media/files/planning-and-research/ceqa/risk-modeling-approach-may- 2012.pdf?la=en
13 BAAQMD, 2020, BAAQMD Health Risk Assessment Modeling Protocol. December. Web:
https://www.baaqmd.gov/~/media/files/ab617-community-health/facility-risk- reduction/documents/baaqmd_hra_modeling_protocol-pdf.pdf?la=en 14 California Air Resource Board, 2007. Proposed Regulation for In-Use Off-Road Diesel Vehicles, Appendix D:
Health Risk Methodology. April. Web: https://ww3.arb.ca.gov/regact/2007/ordiesl07/ordiesl07.htm
11 second floors of nearby residences. 15 A receptor height of 3 feet (1 meter) was used to represent the breathing height of infants and children at the Kids on Campus Preschool.
Summary of Construction Community Risk Impacts
The maximum increased cancer risks were calculated using the mo deled TAC concentrations combined with the Office of Environmental Health Hazard Assessm ent (OEHHA) guidance for age sensitivity factors and expos ure parameters as recommended by BAAQMD (see Attachment 1). Non-cancer health hazards and maximum PM 2.5 concentrations were also calculated and identified. Age-sensitivity factors reflect the greater sensiti vity of infants and children to cancer causing TACs. Third-trimester, infant, child, and adult exposur es were assumed to occur at all residences during the entire c onstruction period, while infant and child exposures were assumed to occur at the preschool.
The maximum modeled annual PM
2.5 concentration was calculated based on combined exhaust and fugitive concentrations. The maximum computed HI value was based on the ratio of the maximum DPM concentration modeled and the chronic inhalation re ference exposure level of 5 µg/m3.
The maximum-modeled annual DPM and PM
2.5 concentrations were identified at nearby
sensitive receptors (as shown in Figure 1) to find the maximall y exposed individuals (MEI).
Results of this assessment indicated that the construction MEI was located on the first floor (3 feet above ground) in the southeast corner of the Kids on Campu s Preschool to the north of the project site. Modeling results also identified the residential receptor with the maximum construction impacts, which were less than that of the preschoo l MEI. Table 4 summarizes the maximum cancer risks, PM 2.5 concentrations, and health hazard indexes for project related construction activities affecting the construction MEI. Attachment 4 to this report includes the emission calculations used for the construction area source mod eling and the cancer risk calculations.
Summary of Project-Related Community Risks at the Off-Site Sensitive Receptors
As shown in Table 4, the unmitigated maximum cancer risks from construction activities at the preschool MEI location would ex ceed the BAAQMD single-source si gnificance threshold.
However, with the incorporation of the Mitigation Measure AQ-1 and AQ-2 , the mitigated risk values would reduce emissions such that the cancer risk caused by construction would no longer exceed the BAAQMD single-source significance threshold. The unm itigated annual PM 2.5 concentration and HI at the preschool MEI, and all risk and haz ard impacts at the residential maximum receptor, do not exceed their respective BAAQMD single- source significance thresholds.
15 Bay Area Air Quality Management District, 2012, Recommended Methods for Screening and Modeling Local Risks and Hazards, Version 3.0. May. Web: https://www.baaqmd.gov/~/media/files/planning-and- research/ceqa/risk-modeling-approach-may-2012.pdf?la=en
12 Table 4. Construction Risk Impact s at the Off-Site Sensitive Receptors Source Cancer Risk
(per million)
Annual PM2.5
(µg/m3)
Hazard
Index
Project Impact – Kids on Campus MEI
Project Construction Unmitigated Mitigated*
23.09 (infant)
1.83 (infant)
0.06 0.01
0.01 <0.01
BAAQMD Single-Source Threshold 10 0.3 1.0
Exceed Threshold? Unmitigated Mitigated*
Yes
No
No
No
No
No
Most Affected Residential Receptor – First Floor (1.5 meter) Receptor Project Construction Unmitigated Mitigated*
5.44 (infant)
0.43 (infant)
0.03 <0.01
0.01 <0.01
BAAQMD Single-Source Threshold 10 0.3 1.0
Exceed Threshold? Unmitigated Mitigated*
No
No
Yes
No
No
No
* Construction equipment with Tier 4 engines and BMPs as Mitigation.
Figure 1. Locations of Project Construction Site, Off-Site Sen sitive Receptors, and Maximum TAC Impacts (MEI)
13 Cumulative Community Risks of all TAC Sources at the Off-Site Project MEI
Community health risk assessments typically look at all substan tial sources of TACs that can affect sensitive receptors tha t are located within 1,000 feet o f a project site (i.e., influence area).
These sources include rail lines, highways, busy surface street s, and stationary sources identified by BAAQMD.
A review of the project area and based on provided traffic info rmation indicated that one roadway within the influence ar ea, El Camino Real, would have t raffic exceeding 10,000 vehicles per day. Other nearby streets would have less than 10,000 vehicles per day. A review of BAAQMD’s stationary sour ce geographic inform ation systems (GIS) map tool identified 10 stationary sources with the potential to affect the project site and MEI. Figure 2 shows the project area included within the influence area and the location of the MEI. Community risk impacts from these sources upon the MEIs reported in Table 5. Details o f the modeling and community risk calculations are included in Attachment 5.
Figure 2. Project Site, Proj ect MEI, and Nearby TAC and PM
2.5 Sources
14 Local Roadways – El Camino Real
A refined analysis of potential health impacts from vehicle tra f f i c o n E l C a m i n o R e a l w a s conducted. This analysis involved predicting emissions for the traffic volume and mix of vehicle types on the roadway near the project site and using an atmosph eric dispersion model to predict exposure to TACs. The associated cancer risks were then compute d based on the modeled exposures. Attachment 1 includes a description of how community risk impacts, including cancer risk are computed.
Emission Rates
This analysis involved the development of DPM, organic TACs, an d PM
2.5 emissions for traffic
on El Camino Real using the Caltrans version of the CARB EMFAC2 017 emissions model, known as CT-EMFAC2017. CT-EMFAC2017 provides emission factors f or mobile source criteria pollutants and TACs, including DPM. 16 Emission processes modeled include running exhaust for DPM, PM 2.5 and total organic compounds (T OG), running evaporative losses for TOG, and tire and brake wear and fugitive road dust for PM 2.5. PM2.5 emissions from all vehicles were used, rather than just the PM 2.5 fraction from diesel powered vehicles, because all vehicle types (i.e., gasoline and diesel powered) produce PM 2.5. Additionally, PM 2.5 emissions from vehicle tire and brake wear and from re-entrained roadway dust were included in the emissions estimate. DPM emissions are projected to decrease in the future a s r e f l e c t e d i n t h e C T - EMFAC2017 emissions d ata. Inputs to the model include region (S anta Clara County), type of road (major/collector), truck percentage for non-state highways in Santa Clara County (3.51 percent),17 traffic mix assigned by CT-EMFAC2017 for the county, year of a nalysis (2023 – construction start year), and season (annual).
To estimate TAC and PM
2.5 emissions over the 30-year exposure period used for calculatin g the increased cancer risks for sensitive receptors at the MEI, the CT-EMFAC2017 model was used to develop vehicle emission factors for the year 2023 (project construction year). Emissions associated with vehicle travel depend on the year of analysis b ecause emission control technology requirements are phased-in over time. Therefore, the earlier the year analyzed in the model, the higher the emission rates utilized by CT-EMFAC2017. Year 2023 emissions were conservatively assumed as being r epresentative of future condit ions over the time period that cancer risks are evaluated since, as discussed above, overall v ehicle emissions, and in particular diesel truck emissions, will decrease in the future.
Average hourly traffic distributions for Santa Clara County roa dways were developed using the EMFAC model,
18 which were then applied to the average daily traffic (ADT) vol umes to obtain estimated hourly traff ic volumes and emissions for the roadway. The ADT for El Camino Real
16 The CT-EMFAC2017 version was used in the analysis because Caltrans has not yet release a CT-EMFAC version with the updated EMFAC2021 emissions that would provide TAC emission rates. 17 Bay Area Air Quality Management District, 2012, Recommended Methods for Screening and Modeling Local Risks and Hazards, Version 3.0. May. Web: https://www.baaqmd.gov/~/media/files/planning-and- research/ceqa/risk-modeling-approach-may-2012.pdf?la=en 18 The Burden output from EMFAC2007, a previous version of CARB’s EMFAC model, was used for this since the current web-based version of EMFAC2021 does not include Burden type output with hour by hour traffic volume information.
15 was calculated based on traffic d ata obtained from the traffic consultant.19 The calculated ADT for El Camino Real would be 23,2 86 vehicles. An average travel speed of 35 miles per hour (mph) on El Camion Real was used for all hours of the day based on posted speed limit signs.
Dispersion Modeling
Dispersion modeling of TAC and PM
2.5 emissions was conducted using the EPA AERMOD air
quality dispersion model, which is recommended by the BAAQMD fo r this type of analysis. 20 TAC and PM 2.5 emissions from traffic on El Ca mino Real within 1,000 feet of the project site were evaluated. Vehicle traffic on the roadways was modeled usi ng volume sources along a line (line volume sources); with line segments used for travel on th e roadway. The same meteorological data and off-site sensitive receptors used in th e previous dispersion modeling were used in the roadway modeling. Other inputs to the model in cluded road geometry, hourly traffic emissions, and recepto r locations. Annual TAC and PM 2.5 concentrations for 2023 from traffic on the roadway was calculated using the model. Concentr ations were calculated at the preschool MEI with receptor heights of 3 feet (1 meter) to repr esent the breathing heights on the first floor of the preschool.
Computed Cancer and Non-Cancer Health Impacts
The cancer risk, PM
2.5 concentration, and HI impacts from El Camino Real on the projec t childcare MEI are shown in Table 5. Figure 2 shows the roadway links used for the modeling and receptor locations where concentrations were calculated. De tails of the emission calculations, dispersion modeli ng, and cancer risk calculations for the receptors with the maximum cancer risk from El Camino Real traffic are provided in Attachment 5.
BAAQMD Permitted Stationary Sources
Permitted stationary sources of air pollution near the project site were identified using BAAQMD’s Permitted Stationary Sources 2020 geographic information system (GIS) map website.21 This mapping tool identifies the location of nearby stationary sources and their estimated risk and hazard impacts. 10 sources were identified u sing this tool, with all the sources being diesel generator. The BAAQM D GIS website provided screeni ng risks and hazards for these sources; therefore, a stationary source information request was not required to be submitted to BAAQMD.
The screening level risks and hazards provided by BAAQMD for th e stationary sources were adjusted for distance using BAAQMD’s Distance Adjustment Multiplier Tool for Diesel Internal Combustion Engines. Community risk impacts from the stationary sources upon the p reschool MEI are reported in Table 5. Note that the risks are reported f or continuous exposure over 30 years with adjustments for infant and child exposure. Risks at the preschool would be less
19 Email correspondence with Patrick Kallas, Project Manager, David J. Powers & Associates, Inc., August 17, 2022..
20 BAAQMD. Recommended Methods for Screening and Modeling Local Risks and Hazards. May 2012 21 BAAQMD, Stationary Source Screening Map, 2022. Web:
https://baaqmd.maps.arcgis.com/apps/webappviewer/index.html?id=845658c19eae4594b9f4b805fb9d89a3
16 because the exposure time of infants and children attending the preschool is much less than the BAAQMD cancer risk assumptions used to develop the screening levels.
Summary of Cumulative Health Risk Impact at Preschool MEI
Table 5 reports both the project and cumulative community risk impacts at the sensitive receptors most affected by construction (i.e., the MEI). The project would have an exceedance with respect to community risk caused by project construction since the unmi tigated maximum cancer risk exceeds the BAAQMD single-source threshold. With the implementa tion of Mitigation Measure AQ-1 and AQ-2 , the project’s cancer risk would be lowered to a level below t he single-source.
The annual PM 2.5 concentration and HI, unmitigated and mitigated, do not exceed t h e s i n g l e - source or cumulative-source thresholds.
Table 5. Impacts from Combined Sources at Preschool MEI Source Cancer Risk
(per million)
Annual PM2.5
(µg/m3)
Hazard
Index
Project Impacts
Project Construction Unmitigated Mitigated
23.09 (infant)
1.83 (infant)
0.06 0.01
0.01 <0.01
BAAQMD Single-Source Threshold 10 0.3 1.0
Exceed Threshold? Unmitigated Mitigated
Yes
No
No
No
No
No
Cumulative Sources
El Camino Real, ADT 23,286 0.03 <0.01 <0.01
Santa Clara University (Facility ID #15397_1, Generator), MEI at 1,000 feet 0.07 <0.01 <0.01
Santa Clara University (Facility ID #15397_10, Generator), MEI at 970 feet 0.17 <0.01 <0.01
Santa Clara University (Facility ID #15397_12, Generator), MEI at 950 feet 0.47 <0.01 <0.01
Santa Clara University (Facility ID #15397_13, Generator), MEI at 980 feet 0.29 <0.01 <0.01
Santa Clara University (Facility ID #15397_14, Generator), MEI at 910 feet 0.10 <0.01 <0.01
Santa Clara University (Facility ID #15397_16, Generator), MEI at 970 feet 0.32 <0.01 <0.01
Santa Clara University (Facility ID #15397_18, Generator), MEI at 510 feet 0.22 <0.01 <0.01
Santa Clara University (Facility ID #15397_19, Generator), MEI at 760 feet 0.09 <0.01 <0.01
Santa Clara University (Facility ID #15397_21, Generator), MEI at 370 feet 0.31 <0.01 <0.01
Santa Clara University (Facility ID #15397_23, Generator), MEI at 575 feet 0.14 <0.01 <0.01
Combined Sources Unmitigated Mitigated
25.30 4.04
<0.16
<0.11
<0.11
<0.11
BAAQMD Cumulative Source Threshold 100 0.8 10.0
Exceed Threshold? Unmitigated Mitigated
No
No
No
No
No
No
17 Mitigation Measure AQ-1: Include measures to control dust and exhaust during construction.
During any construction period ground disturbance, the applican t shall ensure that the project contractor implement measures to control dust and exhaust. Impl ementation of the measures recommended by BAAQMD and listed below would reduce the air qua lity impacts associated with grading and new construction t o a l e s s - t h a n - s i g n i f i c a n t l evel. Additional measures are identified to reduce construction equipment exhaust emissions. The contractor shall implement the following best management practices that are required of all projects:
1. All exposed surfaces (e.g., park ing areas, staging areas, soil piles, graded areas, and unpaved access roads) shall be watered two times per day.
2. All haul trucks transporting soil, sand, or other loose material off-site shall be covered.
3. All visible mud or dirt track- out onto adjacent public roads sh all be removed using wet power vacuum street sweepers at least once per day. The use of dry power sweeping is prohibited.
4. All vehicle speeds on unpaved roads shall be limited to 15 miles per hour (mph).
5. All roadways, driveways, and sidewalks to be paved shall be com pleted as soon as possible. Building pads shall be laid as soon as possible after grading unless seeding or soil binders are used.
6. Idling times shall be minimized either by shutting equipment of f when not in use or reducing the maximum idling time to 5 minutes (as required by t he California airborne toxics control measure Title 13, Section 2485 of California Cod e of Regulations [CCR]).
Clear signage shall be provided for construction workers at all access points.
7. All construction equipment shall be maintained and properly tun ed in accordance with manufacturer’s specifications. Al l equipment shall be checked b y a certified mechanic and determined to be running in proper condition prior to operation.
8. Post a publicly visible sign with the telephone number and pers on to contact at the Lead Agency regarding dust complaints. This person shall respond and take corrective action within 48 hours. The Air District’s phone number shall also be visible to ensure compliance with applicable regulations.
Effectiveness of Mitigation Measure AQ-1
The measures above are consistent with BAAQMD-recommended basic control measures for reducing fugitive particulate matter that are contained in the BAAQMD CEQA Air Quality Guidelines. These measures would also further reduce TAC emissi ons associated with construction activity.
18 Mitigation Measure AQ-2: Use construction equipment that has low diesel particulate matter exhaust emissions.
Implement a feasible plan to reduce DPM emissions by 60 percent such that increased cancer risk and annual PM
2.5 concentrations from construction would be reduced below TAC significance levels as follows:
1. All construction equipment larger than 25 horsepower used at th e site for more than two continuous days or 20 hours total shall meet U.S. EPA Tier 4 em ission standards for PM (PM
10 and PM2.5), if feasible, otherwise,
a. If use of Tier 4 equipment is not available, alternatively use equipment that meets U.S. EPA emission standards for Tier 3 engines and include part iculate matter emissions control equivalent to CARB Level 3 verifiable diesel emission control devices that altogether achieve a 60 percent reduction in parti culate matter exhaust in comparison to uncontr olled equipment; alternatively (or in combination).
2. Alternatively, the applicant may develop another construction o perations plan demonstrating that the construc tion equipment used on-site woul d achieve a reduction in construction diesel particulate matter emissions by 60 percent or greater. Elements of the plan could include a combination of some of the following measures:
• Implementation of No. 1 above to use Tier 4 engines or alternat ively fueled equipment,
• Installation of electric power lines during early construction phases to avoid use of diesel generators and compressors,
• Use of electrically-powered equipment,
• Forklifts and aerial lifts used for exterior and interior build ing construction shall be electric or propane/natural gas powered,
• Change in construction build-out plans to lengthen phases, and • Implementation of different build ing techniques that result in less diesel equipment usage.
Such a construction operations pla n would be subject to review by an air quality expert and approved by the City prior to construction.
Effectiveness of Mitigation Measure AQ-1 and AQ-2
CalEEMod was used to compute emis sions associated with this mit igation measure assuming that all equipment met U.S. EPA Tier 4 Interim engine standards and BAAQMD best management practices for constr uction were included. With these implemented, the project’s construction cancer risk levels (assuming infant exposure) woul d be reduced by 92 percent to
1.83 chances per million. Note tha t use of equipment that does not meet Tier 4 standards but includes CARB Level 3 verifiable diesel emission control device s would achieve about an 85-
19 percent reduction and meet the requirements of this mitigation measure. As a result, the project’s construction risks would be reduced below the BAAQMD single-source threshold.
Non-CEQA: On-site Community Ris k Assessment for TAC Sources - N ew Project Residences
In addition to evaluating health impact from project constructi on, a health risk assessment was completed to assess the impact that the existing TAC sources wo uld have on the new proposed sensitive receptors (residents) that the project would introduc e. The same TAC sources identified above were used in this health risk assessment.
22 Figure 3 shows the on-s ite sensitive receptors
in relation to the nearby TAC sources. All on-site community ta sk results are listed in Table 6.
Attachment 5 includes the dispersion modeli ng and risk calculations for TAC source impacts upon the proposed on-site sensitive receptors.
Local Roadways – El Camino Real
The roadway analysis for the project residents was conducted in the same manner as described above for the off-site MEI. However, year 2025 (operational yea r) was conservatively assumed as being representative of futu re conditions, instead of 2023 ( construction year). An analysis based on 2025 resulted in an increased ADT on El Camino Real of 23,733 vehicles. On-site receptors were placed throughout the project site with a spacin g of 7 meters (23 feet). Roadway impacts were modeled at receptor heights of 5 feet (1.5 meters) and 21 feet (6.4 meters) representing sensitive receptors on the first and second floors of the proposed building. The portion of the roadway included in the modeling are shown in Figure 3 along with the project site and receptor locations where impacts were modeled.
Maximum increased cancer risks were calculated for the resident s at the projec t s ite us ing th e maximum modeled TAC concentrati ons. A 30-year exposure period w as used in calculating cancer risks assuming the residents would include third trimest er pregnancy and infants/children and were assumed to be in the new homes for 24 hours per day fo r 350 days per year. The highest impacts from El Camino Re al occurred at a receptor on t he first floor in the southeast corner of the project site. Cancer risks associated with the ro adway are greatest closest to the roadway and decrease with distance from the road. The roadway c ommunity risk impacts at the project site are shown in Table 6. Details of the emission calc ulations, dispersion modeling, and cancer risk calculations are contained in Attachment 5.
22 We note that to the extent this analysis considers existing air quality issues in relation to the impact on future residents of the Project, it does so for informational purposes only pursuant to the judicial decisions in CBIA v.
BAAQMD (2015) 62 Cal.4th 369, 386 and Ballona Wetlands Land Trust v. City of Los Angeles (2011) 201 Cal.App.4th 455, 473, which confirm that the impacts of the environment on a project are excluded from CEQA unless the project itself “exacerbates” such impacts.
20 Stationary Sources
The stationary source screening analysis for the new project sensitive receptors was conducted in the same manner as described above for the construction MEI. Ta ble 6 includes the health risk assessment results from the stationary sources.
Summary of Cumulative Community Risks at the Project Site
Community risk impacts from the existing and TAC sources upon t he project site are reported in Table 6. The risks from the singu lar TAC sources are compared a gainst the BAAQMD single- source threshold. The risks from all the sources are then combi ned and compared against the BAAQMD cumulative-source threshold. As shown, none of the sources exceed the single-source or cumulative-source thresholds.
Table 6. Impacts from Combined Sources to Project Site Recepto rs Source Cancer Risk
(per million)
Annual PM2.5
(µg/m3)
Hazard
Index
El Camino Real, ADT 23,733 0.04 <0.01 <0.01
Santa Clara University (Facility ID #15397_1, Generator), MEI at 1,000 feet 0.13 <0.01 <0.01
Santa Clara University (Facility ID #15397_10, Generator), MEI at 970 feet 0.17 <0.01 <0.01
Santa Clara University (Facility ID #15397_12, Generator), MEI at 950 feet 1.05 <0.01 <0.01
Santa Clara University (Facility ID #15397_13, Generator), MEI at 980 feet 0.29 <0.01 <0.01
Santa Clara University (Facility ID #15397_14, Generator), MEI at 910 feet 0.10 <0.01 <0.01
Santa Clara University (Facility ID #15397_16, Generator), MEI at 970 feet 0.26 <0.01 <0.01
Santa Clara University (Facility ID #15397_18, Generator), MEI at 510 feet 0.26 <0.01 <0.01
Santa Clara University (Facility ID #15397_19, Generator), MEI at 760 feet 0.11 <0.01 <0.01
Santa Clara University (Facility ID #15397_21, Generator), MEI at 370 feet 0.21 <0.01 <0.01
Santa Clara University (Facility ID #15397_23, Generator), MEI at 575 feet 0.13 <0.01 <0.01
BAAQMD Single-Source Threshold 10 0.3 1.0
Exceed Threshold? No No No
Cumulative Total 2.75 <0.11 <0.11
BAAQMD Cumulative Source Threshold 100 0.8 10.0
Exceed Threshold? No No No
21 Figure 3. Locations of Project Site, On-Site Residential Recep tors, Roadway Models, Stationary Sources, and Maximum TAC Impacts
22 Supporting Documentation
Attachment 1 is the methodology used to compute community risk impacts, inc luding the methods to compute lifetime cancer risk from exposure to project emissions.
Attachment 2 includes the CalEEMod output for project construction emission s. Also included are any modeling assumptions.
Attachment 3 includes the EMFAC2021 emissions modeling. The input files for these calculations are voluminous and are available upon request in digital format.
Attachment 4 is the construction health risk assessment. This includes the summary of the dispersion modeling and the cance r risk calculations for constr uction. AERMOD dispersion modeling files for this assessment, which are quite voluminous, are available upon request and would be provided in digital format
Attachment 5 includes the cumulative community risk calculations, modeling results, and health risk calculations from sources affecting the construction MEI and project site receptors.
Attachment 1: Health Risk Calculation Methodology
A health risk assessment (HRA) for exposure to Toxic Air Contam inates (TACs) requires the application of a risk characterization model to the results fro m the air dispersion model to estimate potential health risk at each sensitive receptor location. The State of California Office of Environmental Health Hazard Asse ssment (OEHHA) and California A ir Resources Board (CARB) develop recommended methods for conducting health risk assessments. The most recent OEHHA risk assessment guidelines were published in February of 2015.23 These guidelines incorporate substantial changes designed to provide for enhance d protection of children, as required by State law, compared to previous published risk asse ssment guidelines. CARB has provided additional guidance on implementing OEHHA’s recommende d methods.24 This HRA used the 2015 OEHHA risk assessment guidelines and CARB guidanc e. The BAAQMD has adopted recommended procedures for applying the newest OEHHA gu idelines as part of Regulation 2, Rule 5: New Source Review of Toxic Air Contaminan ts.25 Exposure parameters from the OEHHA guidelines and the recent BAAQMD HRA Guidelines were used in this evaluation.
Cancer Risk
Potential increased cancer risk from inhalation of TACs is calc ulated based on the TAC concentration over the period of exposure, inhalation dose, the TAC cancer potency factor, and an age sensitivity factor to reflect the greater sensitivity of infants and children to cancer causing TACs. The inhalation dose depends on a person’s breathing rate, exposure time and frequency and duration of exposure. These parameters vary depending on th e age, or age range, of the persons being exposed and whether the exposure is considered to occur at a residential location or other sensitive receptor location.
The current OEHHA guidance recommends that cancer risk be calcu lated by age groups to account for different breathing rates and sensitivity to TACs. Specifically, they recommend evaluating risks for the third trimester of pregnancy to age zero, ages zero to less than two (infant exposure), ages two to less than 16 (child exposure), and ages 16 to 70 (adult exposure). Age sensitivity factors (ASFs) asso ciated with the different types of exposure are an ASF of 10 for the third trimester and infant exposures, an ASF of 3 for a child exposure, and an ASF of 1 for an adult exposure. Also associated with each exposure type are dif ferent breathing rates, expressed as liters per kilogram of body weight per day (L/kg-day) or lit ers per kilogram of body weight per 8-hour period for the case of worker or school child exposu res. As recommended by the BAAQMD for residential exposures, 95
th percentile breathing rates are used for the third
trimester and infant exposures, and 80 th percentile breathing rates for child and adult exposures.
For children at schools and daycare facilities, BAAQMD recommen ds using the 95 th percentile 8-hour breathing rates. Additionally, CARB and the BAAQMD recom mend the use of a
23 OEHHA, 2015. Air Toxics Hot Spots Program Risk Assessment Guidelines, The Air Toxics Hot Spots Program Guidance Manual for Preparation of Health Risk Assessments. Office of Environmental Health Hazard Assessment.
February.
24 CARB, 2015. Risk Management Guidance for Stationary Sources of Air Toxics. July 23. 25 BAAQMD, 2016. BAAQMD Air Toxics NSR Program Health Risk Assessment ( HRA) Guidelines. December 2016.
residential exposure duration of 30 years for sources with long -term emissions (e.g., roadways).
For workers, assumed to be adu lts, a 25-year exposure period is recommended by the BAAQMD. For school children a 9-year exposure period is recommended by the BAAQMD.
Under previous OEHHA and BAAQMD H RA guidance, residential receptors are assumed to be at their home 24 hours a day, or 100 percent of the time. In th e 2015 Risk Assessment Guidance, OEHHA includes adjustments to exposure duration to account for the fraction of time at home (FAH), which can be less than 100 percent of the time, based on updated population and activity statistics. The FAH factors ar e age-specific and are: 0.85 for third trimester of pregnancy to less than 2 years old, 0.72 for ages 2 to less than 16 years, and 0. 73 for ages 16 to 70 years. Use of the FAH factors is allowed by the BAAQMD if there are no schools in the project vicinity have a cancer risk of one in a million or greater assuming 100 percent exposure (FAH = 1.0).
Functionally, cancer risk is calculated using the following parameters and formulas:
Cancer Risk (per million) = CPF x Inhalation Dose x ASF x ED/AT x FAH x 10 6 Where:
CPF = Cancer potency factor (mg/kg-day)-1
A S F = A g e s e n s i t i v i t y f a c t o r f o r s p e c i f i e d a g e g roup E D = E xposure duration (years)
A T = A v e r a g i ng time for lifetime cancer risk (years) F A H = F r a c t i on of time spent at home (unitless)
Inhalation Dose = Cair x DBR* x A x (EF/365) x 10-6
Where:
Cair = concentration in air (μg/m3)
DBR = daily breathing rate (L/kg body weight-day)
8HrBR = 8-hour breathing rate (L/kg body weight-8 hours) A = Inhalation absorption factor
EF = Exposure frequency (days/year)
10 -6 = Conversion factor
The health risk parameters used in this evaluation are summarized as follows:
Exposure Type Infant Child Adult
Parameter Age Range 3rd
Trimester
0<2 2 < 16 16 - 30
DPM Cancer Potency Factor (mg/kg-day)-1 1.10E+00 1.10E+00 1.10E+00 1.10E+00 Daily Breathing Rate (L/kg-day) 80th Percentile Rate 273 758 572 261 Daily Breathing Rate (L/kg-day) 95th Percentile Rate 361 1,090 745 335 8-hour Breathing Rate (L/kg-8 hours) 95th Percentile Rate - 1,200 520 240 Inhalation Absorption Factor 1 1 1 1
Averaging Time (years) 70 70 70 70
Exposure Duration (years) 0.25 2 14 14*
Exposure Frequency (days/year) 350 350 350 350*
Age Sensitivity Factor 1 0 1 0 3 1
Fraction of Time at Home (FAH) 0.85-1.0 0.85-1.0 0.72-1.0 0.73* * An 8-hour breathing rate (8HrBR) is used for worker and school child exposures.
Non-Cancer Hazards
Non-cancer health risk is usually determined by comparing the p redicted level of exposure to a chemical to the level of exposure that is not expected to cause any adverse effects (reference exposure level), even to the mo st susceptible people. Potential non-cancer health hazards from TAC exposure are expressed in terms of a hazard index (HI), whi ch is the ratio of the TAC concentration to a reference exposure level (REL). OEHHA has defined acceptable concentration levels for contaminants that pose non-cancer health hazards. TA C concentrations below the REL are not expected to cause adverse health impacts, even for sens itive individuals. The total HI is calculated as the sum of the HIs for each TAC evaluated and the total HI is compared to the BAAQMD significance thresholds to determine whether a significa nt non-cancer health impact from a project would occur.
Typically, for residential projects located near roadways with substantial TAC emissions, the primary TAC of concern with non- cancer health effects is diesel particulate matter (DPM). For DPM, the chronic inhalation REL is 5 micrograms per cubic meter (μg/m 3).
Annual PM
2.5 Concentrations
While not a TAC, fine particulate matter (PM
2.5) has been identified by the BAAQMD as a
pollutant with potential non-cancer health effects that should be included when evaluating potential community health impac ts under the California Environ mental Quality Act (CEQA).
The thresholds of significance for PM 2.5 ( p r o j e c t l e v e l a n d c u m u l a t i v e ) a r e i n t e r m s o f a n increase in the annual average concentration. When considering PM2.5 impacts, the contribution from all sources of PM2.5 emissions should be included. For projects with potential impa cts from nearby local roadways, the PM 2.5 impacts should include those from vehicle exhaust emissions, PM2.5 generated from vehicle tire and brake wear, and fugitive emiss ions from re-suspended dust on the roads.
Attachment 2: CalEEMod Modeling Inputs and Outputs
Air Quality/Noise Construction Information Data Request Project Name:
See Equipment Type TAB for type, horsepower and load factor Project Size 39 Dwelling Units 0.4 total project acres disturbed 26235 s.f. residential Pile Driving? Y/N? N
1540 s.f. retail
0 s.f. office/commercial
Project include on-site GENERATOR OR FIRE PUMP during project OPERATION (not construction)? Y/N? __N__
1,625 s.f. other, specify: Level 1 Entry, Common Rm IF YES (if BOTH separate values) --> 14200 s.f. parking garage 23 spaces Kilowatts/Horsepower: __________ 5400 s.f. parking lot 10 spaces Fuel Type: _____________ Construction Days 9/1/2023 to 2/1/2025 Location in project (Plans Desired if Available):
Construction Hours 6:00 am to 6:00 pm
DO NOT MULTIPLY EQUIPMENT HOURS/DAY BY THE QUANTITY OF EQUIPMENT Quantity Description HP Load Factor Hours/day
Total
Work
Days
Avg.
Hours per
day
HP Annual
Hours Comments
Demolition - not required Start Date: Total phase: Overall Import/Export Volumes End Date:
Concrete/Industrial Saws 81 0.73 #DIV/0! 0 Demolition Volume - not required Excavators 158 0.38 #DIV/0! 0 Square footage of buildings to be demolished Rubber-Tired Dozers 247 0.4 #DIV/0! 0 (or total tons to be hauled) Tractors/Loaders/Backhoes 97 0.37 #DIV/0! 0 _?_ square feet or Other Equipment? _?_ Hauling volume (tons)
Any pavement demolished and hauled? _?_ tons
Site Preparation Start Date: 9/6/2023 Total phase: 1
End Date: 9/7/2023
Graders 187 0.41 0 0 0
Rubber Tired Dozers 247 0.4 0 0 0
1 Tractors/Loaders/Backhoes 97 0.37 8 1 8 287 remove existing hardscape and grubb Other Equipment?
Grading / Excavation Start Date: 9/8/2023 Total phase: 44 End Date: 11/8/2023 Soil Hauling Volume
1 Excavators 158 0.38 8 15 2.72727273 7205 Export volume = 7400 cubic yards? Graders 187 0.41 0 0 Import volume = none cubic yards?
Rubber Tired Dozers 247 0.4 0 0
Concrete/Industrial Saws 81 0.73 0 0
1 Tractors/Loaders/Backhoes 97 0.37 8 22 4 6317
1 Other Equipment? 221 0.5 8 5 4420 Shoring Drill Rig
Trenching/Foundation/Basement Start Date: 11/9/2023 Total phase: 124 Basement Construction to Level 1 End Date: 5/9/2024
Tractor/Loader/Backhoe 97 0.37 0 0 Cement Trucks _215_ Total Round-Trips Excavators 158 0.38 0 0
2 Other Equipment? Fork-lifts 89 0.2 8 80 5.16129032 22784 1 Cranes 231 0.29 8 20 1.29032258 10718
Building - Exterior Start Date: 5/10/2024 Total phase: 163 Cement Trucks 56 Total Round-Trips End Date: 12/3/2024
1 Cranes 231 0.29 8 40 1.96319018 21437 Electric? (Y/N) N___ Otherwise assumed diesel 1 Forklifts 89 0.2 6 145 5.33742331 15486 Liquid Propane (LPG)? (Y/N) N___ Otherwise Assumed diesel Generator Sets 84 0.74 0 0 Or temporary line power? (Y/N) __N_ Tractors/Loaders/Backhoes 97 0.37 0 0
1 Welders 46 0.45 8 4 0.19631902 662
Other Equipment? Manlift 0 0 0 assuming no manlifts required Building - Interior/Architectural Coating Start Date: 8/1/2024 Total phase: 138 End Date: 2/1/2025
4 Air Compressors 78 0.48 8 65 3.76811594 77875
Aerial Lift 62 0.31 0 0 0 0
Other Equipment?
Paving Start Date: 11/1/2024 Total phase: 28
End Date: 12/15/2024
Cement and Mortar Mixers 9 0.56 0 0 0
1 Pavers 130 0.42 8 2 0.57142857 874
1 Paving Equipment 132 0.36 8 2 0.57142857 760
1 Rollers 80 0.38 8 2 0.57142857 486
2 Tractors/Loaders/Backhoes 97 0.37 8 3 0.85714286 1723 1 Other Equipment? -
Concrete/Industrial Saws 81 0.73 4 5 0.71428571 1182.6
Additional Phases Start Date: Total phase:
Start Date:
#DIV/0! 0
#DIV/0! 0
#DIV/0! 0
#DIV/0! 0
#DIV/0! 0
Equipment types listed in "Equipment Types" worksheet tab.
Equipment listed in this sheet is to provide an example of inputs Complete one sheet for each project component It is assumed that water trucks would be used during grading Add or subtract phases and equipment, as appropriate
Modify horsepower or load factor, as appropriate
Complete ALL Portions in Yellow
Asphalt? yes_35_cubic yards or no_ round trips?
2655 The Alameda - Construction Activities (does not include Environmental Remediation Activities)
Land Use Size Daily Trips New Trips Weekday Trip Gen Weekday Sat Sun Apartments Mid Rise DU 39 177 164 4.21 5.44 4.91 4.09
Residential/Retail Internal Capture ‐13 Re v 3.80 3.16
Strip Mall KSF 1.54 84 50 32.47 44.32 42.04 20.43
Residential/Retail Internal Capture ‐13 Re v 30.80 14.97 Pass‐By Reduction ‐21
Traffic Consultant Trip Gen CalEEMod Default
Unmitigated ROG NOX PM10 Exhaust PM2.5 Exhaust CO2e
Year MT
2023 0.01 0.07 0.004 0.003 13.43
2024‐2025 0.26 0.42 0.02 0.02 76.66
2023 0.003 0.02 0.002 0.001 21.47
2024‐2025 0.01 0.08 0.01 0.002 73.32
2023 0.01 0.09 0.01 0.00 34.90
2024‐2025 0.27 0.50 0.03 0.02 149.98
Tons 0.29 0.67 0.04 0.03 258.20
Pounds/Workdays
2023 0.25 2.21 0.12 0.09 84
2024‐2025 1.87 3.43 0.18 0.15 291
Threshold ‐ lbs/day 54.0 54.0 82.0 54.0
Pounds 2.12 5.65 0.31 0.25 0.00
Average 1.56 3.59 0.20 0.15 0.00 375.00
Threshold ‐ lbs/day 54.0 54.0 82.0 54.0
Unmitigated ROG NOX Total PM10 Total PM2.5
Year 2025
Total 0.26 0.08 0.15 0.04
Tons/year 0.26 0.08 0.15 0.04
Threshold ‐ Tons/year 10.0 10.0 15.0 10.0
Pounds Per Day 1.44 0.45 0.81 0.21
Threshold ‐ lbs/day 54.0 54.0 82.0 54.0
Category
Project Existing Project 2030 Existing
Area 0.49
Energy 48.20
Mobile 146.31
Waste 9.84
Water 4.47
TOTAL 209.30 0.00 0.00 0.00
Net GHG Emissions 209.30 0.00
Service Population 101.79
Per Capita Emissions 2.06 0.00
39 units
CA DOF 2021 = 2.61 pphh
Average Daily Emissions
EMFAC
Construction Equipment
Total Construction Emissions by Year
Workdays
CO2e
Tons
Total Construction Emissions
Average Daily Emissions
Construction Criteria Air Pollutants
Operational Criteria Air Pollutants
Tons
Existing Use Emissions
Total Construction Emissions
Net Annual Operational Emissions
2655 The Alameda, Santa Clara
Santa Clara County, Annual
1.0 Project Characteristics
1.1 Land Usage
Land Uses Size Metric Lot Acreage Floor Surface Area Population CalEEMod Version: CalEEMod.2020.4.0 Page 1 of 1
Date: 8/25/2022 12:15 PM
2655 The Alameda, Santa Clara - Santa Clara County, Annual EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Not Applied 112
Strip Mall 1.54 1000sqft 0.00 1,540.00 0
Apartments Mid Rise 39.00 Dwelling Unit 0.40 27,860.00
0 Parking Lot 10.00 Space 0.00 5,400.00 0
Enclosed Parking with Elevator 23.00 Space 0.00 14,200.00 Utility Company Silicon Valley Power
CO2 Intensity
(lb/MWhr)
307.98 CH4 Intensity
(lb/MWhr)
0.033
Precipitation Freq (Days) 58
Climate Zone 4 Operational Year 2025
1.2 Other Project Characteristics
Urbanization Urban Wind Speed (m/s) 2.2
Off-road Equipment - Provided in construction and equipment list.
Off-road Equipment - Provided in construction and equipment list.
Construction Phase - Provided schedule - construction worksheet.
Off-road Equipment - Provided in construction and equipment list.
Off-road Equipment - Provided in construction and equipment list.
Off-road Equipment - Provided in construction and equipment list.0 Off-road Equipment - Provided in construction and equipment list.
N2O Intensity
(lb/MWhr)
0.004
1.3 User Entered Comments & Non-Default Data
Project Characteristics -
Land Use - Provided construction data - total project acres and square footages.
CalEEMod Version: CalEEMod.2020.4.0 Page 1 of 1
Date: 8/25/2022 12:15 PM
2655 The Alameda, Santa Clara - Santa Clara County, Annual EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Not Applied Vehicle Emission Factors - EMFAC2021 Vehicle Emissions Factors Santa Clara County 2025.
Fleet Mix - EMFAC2021 Fleet Mix Santa Clara County 2025.
Woodstoves - No hearths.
Energy Use - Santa Clara Reach Code - no natural gas - converted to electricity.
Water And Wastewater - Wastewater treatment - 100% aerobic - no septic tanks or lagoons.
Grading - Grading = 7,400-cy exported.
Trips and VMT - EMFAC2021 adjustment 0 trips, building construction = 56 cement truck round trips, trenching = 215 cement truck round trips, paving = 35-cy asphalt.
Vehicle Trips - Provided trip gen with reductions.
tblConstEquipMitigation NumberOfEquipmentMitigated 0.00 1.00 tblConstEquipMitigation NumberOfEquipmentMitigated 0.00 1.00 tblConstDustMitigation WaterUnpavedRoadVehicleSpeed 0 15 tblConstEquipMitigation NumberOfEquipmentMitigated 0.00 4.00 Construction Off-road Equipment Mitigation - BMPs, tier 4 interim mitigation.
Table Name Column Name Default Value New Value
tblConstEquipMitigation NumberOfEquipmentMitigated 0.00 1.00 tblConstEquipMitigation NumberOfEquipmentMitigated 0.00 1.00 tblConstEquipMitigation NumberOfEquipmentMitigated 0.00 3.00 tblConstEquipMitigation NumberOfEquipmentMitigated 0.00 1.00 tblConstEquipMitigation NumberOfEquipmentMitigated 0.00 2.00 tblConstEquipMitigation NumberOfEquipmentMitigated 0.00 1.00 tblConstEquipMitigation Tier No Change Tier 4 Interim
tblConstEquipMitigation Tier No Change Tier 4 Interim
tblConstEquipMitigation Tier No Change Tier 4 Interim
tblConstEquipMitigation Tier No Change Tier 4 Interim
tblConstEquipMitigation NumberOfEquipmentMitigated 0.00 4.00 tblConstEquipMitigation NumberOfEquipmentMitigated 0.00 1.00 tblConstEquipMitigation Tier No Change Tier 4 Interim
tblConstEquipMitigation Tier No Change Tier 4 Interim
CalEEMod Version: CalEEMod.2020.4.0 Page 1 of 1
Date: 8/25/2022 12:15 PM
2655 The Alameda, Santa Clara - Santa Clara County, Annual EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Not Applied tblConstEquipMitigation Tier No Change Tier 4 Interim
tblConstEquipMitigation Tier No Change Tier 4 Interim
tblConstEquipMitigation Tier No Change Tier 4 Interim
tblConstEquipMitigation Tier No Change Tier 4 Interim
tblConstructionPhase NumDays 2.00 44.00
tblConstructionPhase NumDays 100.00 163.00
tblConstEquipMitigation Tier No Change Tier 4 Interim
tblConstEquipMitigation Tier No Change Tier 4 Interim
tblConstEquipMitigation Tier No Change Tier 4 Interim
tblConstEquipMitigation Tier No Change Tier 4 Interim
tblEnergyUse T24E 70.89 1,602.68
tblEnergyUse T24E 2.46 3.15
tblEnergyUse NT24E 3,054.10 3,978.74
tblEnergyUse NT24NG 3,155.00 0.00
tblConstructionPhase NumDays 5.00 138.00
tblConstructionPhase NumDays 5.00 28.00
tblFireplaces FireplaceWoodMass 228.80 0.00
tblFireplaces NumberGas 5.85 0.00
tblFireplaces FireplaceDayYear 11.14 0.00
tblFireplaces FireplaceHourDay 3.50 0.00
tblEnergyUse T24NG 5,226.68 0.00
tblEnergyUse T24NG 2.34 0.00
tblFleetMix HHD 6.3770e-003 7.4400e-003
tblFleetMix HHD 6.3770e-003 7.4400e-003
tblFleetMix HHD 6.3770e-003 7.4400e-003
tblFleetMix HHD 6.3770e-003 7.4400e-003
tblFireplaces NumberNoFireplace 1.56 0.00
tblFireplaces NumberWood 6.63 0.00
tblFleetMix LDA 0.57 0.53
CalEEMod Version: CalEEMod.2020.4.0 Page 1 of 1
Date: 8/25/2022 12:15 PM
2655 The Alameda, Santa Clara - Santa Clara County, Annual EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Not Applied tblFleetMix LDT1 0.06 0.04
tblFleetMix LDT1 0.06 0.04
tblFleetMix LDA 0.57 0.53
tblFleetMix LDA 0.57 0.53
tblFleetMix LDA 0.57 0.53
tblFleetMix LDT2 0.19 0.23
tblFleetMix LDT2 0.19 0.23
tblFleetMix LDT2 0.19 0.23
tblFleetMix LDT2 0.19 0.23
tblFleetMix LDT1 0.06 0.04
tblFleetMix LDT1 0.06 0.04
tblFleetMix LHD2 5.1580e-003 5.7400e-003
tblFleetMix LHD2 5.1580e-003 5.7400e-003
tblFleetMix LHD1 0.02 0.02
tblFleetMix LHD1 0.02 0.02
tblFleetMix LHD1 0.02 0.02
tblFleetMix LHD1 0.02 0.02
tblFleetMix MCY 0.02 0.02
tblFleetMix MCY 0.02 0.02
tblFleetMix MCY 0.02 0.02
tblFleetMix MCY 0.02 0.02
tblFleetMix LHD2 5.1580e-003 5.7400e-003
tblFleetMix LHD2 5.1580e-003 5.7400e-003
tblFleetMix MH 2.7200e-003 2.5850e-003
tblFleetMix MH 2.7200e-003 2.5850e-003
tblFleetMix MDV 0.12 0.13
tblFleetMix MDV 0.12 0.13
tblFleetMix MDV 0.12 0.13
tblFleetMix MDV 0.12 0.13
CalEEMod Version: CalEEMod.2020.4.0 Page 1 of 1
Date: 8/25/2022 12:15 PM
2655 The Alameda, Santa Clara - Santa Clara County, Annual EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Not Applied tblFleetMix MHD 8.0300e-003 9.4250e-003
tblFleetMix MHD 8.0300e-003 9.4250e-003
tblFleetMix MHD 8.0300e-003 9.4250e-003
tblFleetMix MHD 8.0300e-003 9.4250e-003
tblFleetMix MH 2.7200e-003 2.5850e-003
tblFleetMix MH 2.7200e-003 2.5850e-003
tblFleetMix SBUS 9.0000e-004 6.8400e-004
tblFleetMix SBUS 9.0000e-004 6.8400e-004
tblFleetMix OBUS 8.9300e-004 1.0570e-003
tblFleetMix OBUS 8.9300e-004 1.0570e-003
tblFleetMix OBUS 8.9300e-004 1.0570e-003
tblFleetMix OBUS 8.9300e-004 1.0570e-003
tblFleetMix UBUS 3.7200e-004 4.1300e-004
tblFleetMix UBUS 3.7200e-004 4.1300e-004
tblFleetMix UBUS 3.7200e-004 4.1300e-004
tblFleetMix UBUS 3.7200e-004 4.1300e-004
tblFleetMix SBUS 9.0000e-004 6.8400e-004
tblFleetMix SBUS 9.0000e-004 6.8400e-004
tblLandUse LotAcreage 0.21 0.00
tblLandUse LotAcreage 0.09 0.00
tblLandUse LandUseSquareFeet 4,000.00 5,400.00
tblLandUse LandUseSquareFeet 39,000.00 27,860.00
tblGrading MaterialExported 0.00 7,400.00
tblLandUse LandUseSquareFeet 9,200.00 14,200.00
tblOffRoadEquipment OffRoadEquipmentUnitAmount 2.00 1.00 tblOffRoadEquipment OffRoadEquipmentUnitAmount 1.00 4.00 tblOffRoadEquipment OffRoadEquipmentUnitAmount 4.00 0.00 tblLandUse LotAcreage 1.03 0.40
tblLandUse LotAcreage 0.04 0.00
CalEEMod Version: CalEEMod.2020.4.0 Page 1 of 1
Date: 8/25/2022 12:15 PM
2655 The Alameda, Santa Clara - Santa Clara County, Annual EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Not Applied tblOffRoadEquipment OffRoadEquipmentUnitAmount 1.00 0.00 tblOffRoadEquipment UsageHours 6.00 3.80
tblOffRoadEquipment UsageHours 6.00 0.00
tblOffRoadEquipment OffRoadEquipmentUnitAmount 2.00 0.00 tblOffRoadEquipment OffRoadEquipmentUnitAmount 1.00 2.00 tblOffRoadEquipment OffRoadEquipmentUnitAmount 1.00 0.00 tblOffRoadEquipment OffRoadEquipmentUnitAmount 1.00 0.00 tblOffRoadEquipment UsageHours 7.00 0.60
tblOffRoadEquipment UsageHours 7.00 0.60
tblOffRoadEquipment UsageHours 6.00 0.00
tblOffRoadEquipment UsageHours 8.00 0.00
tblOffRoadEquipment UsageHours 4.00 2.00
tblOffRoadEquipment UsageHours 6.00 5.30
tblTripsAndVMT HaulingTripNumber 925.00 0.00
tblTripsAndVMT VendorTripNumber 8.00 0.00
tblOffRoadEquipment UsageHours 7.00 4.00
tblOffRoadEquipment UsageHours 7.00 0.90
tblOffRoadEquipment UsageHours 6.00 0.00
tblOffRoadEquipment UsageHours 8.00 0.00
tblTripsAndVMT WorkerTripNumber 7.00 0.00
tblTripsAndVMT WorkerTripNumber 15.00 0.00
tblTripsAndVMT WorkerTripNumber 8.00 0.00
tblTripsAndVMT WorkerTripNumber 37.00 0.00
tblTripsAndVMT WorkerTripNumber 3.00 0.00
tblTripsAndVMT WorkerTripNumber 8.00 0.00
tblVehicleEF HHD 6.32 5.18
tblVehicleEF HHD 0.41 0.76
tblVehicleEF HHD 0.02 0.23
tblVehicleEF HHD 0.05 0.12
CalEEMod Version: CalEEMod.2020.4.0 Page 1 of 1
Date: 8/25/2022 12:15 PM
2655 The Alameda, Santa Clara - Santa Clara County, Annual EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Not Applied tblVehicleEF HHD 5.9250e-003 6.8500e-004
tblVehicleEF HHD 1,030.26 813.97
tblVehicleEF HHD 6.0000e-006 1.4000e-005
tblVehicleEF HHD 5.35 3.97
tblVehicleEF HHD 0.16 0.13
tblVehicleEF HHD 0.22 0.25
tblVehicleEF HHD 1,386.58 1,586.83
tblVehicleEF HHD 0.05 0.02
tblVehicleEF HHD 0.04 0.04
tblVehicleEF HHD 0.02 0.03
tblVehicleEF HHD 2.5050e-003 2.0970e-003
tblVehicleEF HHD 0.06 0.08
tblVehicleEF HHD 2.67 1.77
tblVehicleEF HHD 2.32 2.75
tblVehicleEF HHD 1.0000e-006 0.00
tblVehicleEF HHD 2.0000e-006 1.6100e-004
tblVehicleEF HHD 8.8870e-003 8.7820e-003
tblVehicleEF HHD 0.02 0.02
tblVehicleEF HHD 2.3970e-003 2.0000e-003
tblVehicleEF HHD 0.03 0.03
tblVehicleEF HHD 3.8000e-005 4.3200e-004
tblVehicleEF HHD 2.0000e-006 0.00
tblVehicleEF HHD 1.0000e-006 0.00
tblVehicleEF HHD 0.03 0.02
tblVehicleEF HHD 8.6000e-005 4.8000e-005
tblVehicleEF HHD 0.43 0.33
tblVehicleEF HHD 2.0000e-006 1.6100e-004
tblVehicleEF HHD 9.5860e-003 7.0990e-003
tblVehicleEF HHD 0.01 0.01
CalEEMod Version: CalEEMod.2020.4.0 Page 1 of 1
Date: 8/25/2022 12:15 PM
2655 The Alameda, Santa Clara - Santa Clara County, Annual EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Not Applied tblVehicleEF HHD 0.49 0.59
tblVehicleEF HHD 1.0000e-006 0.00
tblVehicleEF HHD 8.6000e-005 4.8000e-005
tblVehicleEF LDA 0.04 0.06
tblVehicleEF LDA 0.49 0.61
tblVehicleEF HHD 3.0000e-006 0.00
tblVehicleEF LDA 1.5230e-003 1.8410e-003
tblVehicleEF HHD 0.08 0.14
tblVehicleEF HHD 3.8000e-005 4.3200e-004
tblVehicleEF LDA 0.02 0.03
tblVehicleEF LDA 0.03 0.03
tblVehicleEF LDA 48.21 61.73
tblVehicleEF LDA 3.7350e-003 3.8850e-003
tblVehicleEF LDA 2.00 2.71
tblVehicleEF LDA 226.89 237.67
tblVehicleEF LDA 0.02 2.4980e-003
tblVehicleEF LDA 1.1380e-003 1.0310e-003
tblVehicleEF LDA 1.2360e-003 1.1200e-003
tblVehicleEF LDA 1.6250e-003 1.8490e-003
tblVehicleEF LDA 0.15 0.22
tblVehicleEF LDA 0.04 7.1370e-003
tblVehicleEF LDA 5.5720e-003 6.9420e-003
tblVehicleEF LDA 0.03 0.20
tblVehicleEF LDA 0.08 0.08
tblVehicleEF LDA 0.03 0.00
tblVehicleEF LDA 1.4940e-003 1.7000e-003
tblVehicleEF LDA 0.03 0.26
tblVehicleEF LDA 0.18 0.27
tblVehicleEF LDA 2.2440e-003 2.3490e-003
CalEEMod Version: CalEEMod.2020.4.0 Page 1 of 1
Date: 8/25/2022 12:15 PM
2655 The Alameda, Santa Clara - Santa Clara County, Annual EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Not Applied tblVehicleEF LDA 0.08 0.08
tblVehicleEF LDA 0.03 0.00
tblVehicleEF LDA 4.7700e-004 6.1000e-004
tblVehicleEF LDA 0.03 0.26
tblVehicleEF LDT1 0.05 0.10
tblVehicleEF LDT1 0.77 1.31
tblVehicleEF LDA 0.19 0.30
tblVehicleEF LDT1 3.1240e-003 5.5770e-003
tblVehicleEF LDA 8.1000e-003 0.01
tblVehicleEF LDA 0.03 0.20
tblVehicleEF LDT1 0.02 0.04
tblVehicleEF LDT1 0.06 0.11
tblVehicleEF LDT1 58.50 84.00
tblVehicleEF LDT1 5.2980e-003 8.6270e-003
tblVehicleEF LDT1 2.16 4.86
tblVehicleEF LDT1 272.37 319.18
tblVehicleEF LDT1 0.02 3.2270e-003
tblVehicleEF LDT1 1.4090e-003 1.6690e-003
tblVehicleEF LDT1 1.5310e-003 1.8130e-003
tblVehicleEF LDT1 1.9900e-003 2.7500e-003
tblVehicleEF LDT1 0.20 0.36
tblVehicleEF LDT1 0.04 9.2190e-003
tblVehicleEF LDT1 0.01 0.02
tblVehicleEF LDT1 0.07 0.44
tblVehicleEF LDT1 0.13 0.16
tblVehicleEF LDT1 0.06 0.00
tblVehicleEF LDT1 1.8300e-003 2.5290e-003
tblVehicleEF LDT1 0.07 0.56
tblVehicleEF LDT1 0.25 0.50
CalEEMod Version: CalEEMod.2020.4.0 Page 1 of 1
Date: 8/25/2022 12:15 PM
2655 The Alameda, Santa Clara - Santa Clara County, Annual EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Not Applied tblVehicleEF LDT1 0.13 0.16
tblVehicleEF LDT1 0.06 0.00
tblVehicleEF LDT1 5.7900e-004 8.3000e-004
tblVehicleEF LDT1 0.07 0.56
tblVehicleEF LDT1 2.6950e-003 3.1550e-003
tblVehicleEF LDT2 0.06 0.08
tblVehicleEF LDT2 0.69 0.78
tblVehicleEF LDT1 0.27 0.54
tblVehicleEF LDT2 2.6570e-003 2.5920e-003
tblVehicleEF LDT1 0.02 0.04
tblVehicleEF LDT1 0.07 0.44
tblVehicleEF LDT2 0.03 0.04
tblVehicleEF LDT2 0.05 0.06
tblVehicleEF LDT2 63.01 84.01
tblVehicleEF LDT2 5.2770e-003 5.6470e-003
tblVehicleEF LDT2 2.60 3.42
tblVehicleEF LDT2 290.83 327.62
tblVehicleEF LDT2 0.02 3.1010e-003
tblVehicleEF LDT2 1.1980e-003 1.1890e-003
tblVehicleEF LDT2 1.3020e-003 1.2920e-003
tblVehicleEF LDT2 1.6610e-003 2.0610e-003
tblVehicleEF LDT2 0.23 0.31
tblVehicleEF LDT2 0.04 8.8600e-003
tblVehicleEF LDT2 0.01 0.01
tblVehicleEF LDT2 0.06 0.21
tblVehicleEF LDT2 0.11 0.08
tblVehicleEF LDT2 0.06 0.00
tblVehicleEF LDT2 1.5270e-003 1.8950e-003
tblVehicleEF LDT2 0.06 0.28
CalEEMod Version: CalEEMod.2020.4.0 Page 1 of 1
Date: 8/25/2022 12:15 PM
2655 The Alameda, Santa Clara - Santa Clara County, Annual EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Not Applied tblVehicleEF LDT2 0.11 0.08
tblVehicleEF LDT2 0.06 0.00
tblVehicleEF LDT2 6.2400e-004 8.3000e-004
tblVehicleEF LDT2 0.06 0.28
tblVehicleEF LDT2 0.26 0.35
tblVehicleEF LDT2 2.8770e-003 3.2380e-003
tblVehicleEF LHD1 7.2910e-003 7.2220e-003
tblVehicleEF LHD1 0.01 0.02
tblVehicleEF LDT2 0.29 0.39
tblVehicleEF LHD1 4.8220e-003 5.1940e-003
tblVehicleEF LDT2 0.02 0.01
tblVehicleEF LDT2 0.06 0.21
tblVehicleEF LHD1 764.47 764.97
tblVehicleEF LHD1 11.28 17.60
tblVehicleEF LHD1 1.01 2.16
tblVehicleEF LHD1 8.77 8.60
tblVehicleEF LHD1 0.18 0.20
tblVehicleEF LHD1 0.66 0.82
tblVehicleEF LHD1 0.57 0.59
tblVehicleEF LHD1 0.29 0.42
tblVehicleEF LHD1 0.02 0.03
tblVehicleEF LHD1 0.05 0.05
tblVehicleEF LHD1 7.4300e-004 6.3700e-004
tblVehicleEF LHD1 0.04 0.04
tblVehicleEF LHD1 2.3900e-004 2.0600e-004
tblVehicleEF LHD1 9.8070e-003 9.4200e-003
tblVehicleEF LHD1 9.0910e-003 0.01
tblVehicleEF LHD1 8.5700e-004 6.8500e-004
tblVehicleEF LHD1 0.08 0.08
CalEEMod Version: CalEEMod.2020.4.0 Page 1 of 1
Date: 8/25/2022 12:15 PM
2655 The Alameda, Santa Clara - Santa Clara County, Annual EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Not Applied tblVehicleEF LHD1 8.2000e-004 6.5600e-004
tblVehicleEF LHD1 1.8120e-003 0.12
tblVehicleEF LHD1 0.07 0.03
tblVehicleEF LHD1 8.6510e-003 0.01
tblVehicleEF LHD1 2.2000e-004 1.8900e-004
tblVehicleEF LHD1 0.03 0.03
tblVehicleEF LHD1 2.4520e-003 2.3550e-003
tblVehicleEF LHD1 0.06 0.11
tblVehicleEF LHD1 8.5000e-005 8.4000e-005
tblVehicleEF LHD1 0.09 0.08
tblVehicleEF LHD1 0.19 0.17
tblVehicleEF LHD1 0.02 0.02
tblVehicleEF LHD1 9.4400e-004 0.00
tblVehicleEF LHD1 0.03 0.03
tblVehicleEF LHD1 9.4400e-004 0.00
tblVehicleEF LHD1 1.8120e-003 0.12
tblVehicleEF LHD1 0.07 0.03
tblVehicleEF LHD1 7.4620e-003 7.4710e-003
tblVehicleEF LHD1 1.1200e-004 1.7400e-004
tblVehicleEF LHD2 6.3420e-003 6.4550e-003
tblVehicleEF LHD2 7.0910e-003 0.01
tblVehicleEF LHD1 0.07 0.12
tblVehicleEF LHD2 2.9270e-003 3.0230e-003
tblVehicleEF LHD1 0.10 0.10
tblVehicleEF LHD1 0.19 0.17
tblVehicleEF LHD2 0.57 1.20
tblVehicleEF LHD2 13.74 13.69
tblVehicleEF LHD2 0.14 0.14
tblVehicleEF LHD2 0.56 0.53
CalEEMod Version: CalEEMod.2020.4.0 Page 1 of 1
Date: 8/25/2022 12:15 PM
2655 The Alameda, Santa Clara - Santa Clara County, Annual EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Not Applied tblVehicleEF LHD2 740.94 811.00
tblVehicleEF LHD2 7.36 9.64
tblVehicleEF LHD2 0.68 0.81
tblVehicleEF LHD2 0.16 0.23
tblVehicleEF LHD2 0.01 0.02
tblVehicleEF LHD2 0.09 0.09
tblVehicleEF LHD2 1.7280e-003 1.6800e-003
tblVehicleEF LHD2 0.07 0.08
tblVehicleEF LHD2 1.2200e-004 9.1000e-005
tblVehicleEF LHD2 1.3890e-003 1.3290e-003
tblVehicleEF LHD2 0.01 0.01
tblVehicleEF LHD2 0.01 0.02
tblVehicleEF LHD2 1.4520e-003 1.3890e-003
tblVehicleEF LHD2 0.09 0.09
tblVehicleEF LHD2 9.1300e-004 0.06
tblVehicleEF LHD2 0.04 0.02
tblVehicleEF LHD2 0.01 0.02
tblVehicleEF LHD2 1.1200e-004 8.4000e-005
tblVehicleEF LHD2 0.04 0.03
tblVehicleEF LHD2 2.6970e-003 2.6660e-003
tblVehicleEF LHD2 0.04 0.06
tblVehicleEF LHD2 7.1520e-003 7.8120e-003
tblVehicleEF LHD2 0.11 0.11
tblVehicleEF LHD2 0.09 0.09
tblVehicleEF LHD2 0.02 0.02
tblVehicleEF LHD2 4.8500e-004 0.00
tblVehicleEF LHD2 0.04 0.02
tblVehicleEF LHD2 7.3000e-005 9.5000e-005
tblVehicleEF LHD2 9.1300e-004 0.06
CalEEMod Version: CalEEMod.2020.4.0 Page 1 of 1
Date: 8/25/2022 12:15 PM
2655 The Alameda, Santa Clara - Santa Clara County, Annual EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Not Applied tblVehicleEF LHD2 4.8500e-004 0.00
tblVehicleEF LHD2 0.12 0.13
tblVehicleEF LHD2 0.02 0.02
tblVehicleEF MCY 18.37 12.31
tblVehicleEF MCY 9.09 7.97
tblVehicleEF MCY 0.32 0.16
tblVehicleEF MCY 0.25 0.18
tblVehicleEF LHD2 0.09 0.09
tblVehicleEF LHD2 0.04 0.06
tblVehicleEF MCY 1.14 0.56
tblVehicleEF MCY 0.27 0.13
tblVehicleEF MCY 0.07 0.04
tblVehicleEF MCY 0.02 7.6910e-003
tblVehicleEF MCY 210.00 187.27
tblVehicleEF MCY 60.43 47.31
tblVehicleEF MCY 1.8970e-003 1.7990e-003
tblVehicleEF MCY 2.7510e-003 3.2530e-003
tblVehicleEF MCY 2.9300e-003 3.4640e-003
tblVehicleEF MCY 5.0400e-003 4.2000e-003
tblVehicleEF MCY 0.01 0.01
tblVehicleEF MCY 2.0310e-003 1.9250e-003
tblVehicleEF MCY 0.52 3.76
tblVehicleEF MCY 1.92 1.31
tblVehicleEF MCY 0.48 0.00
tblVehicleEF MCY 2.18 1.02
tblVehicleEF MCY 0.90 3.86
tblVehicleEF MCY 0.67 3.56
tblVehicleEF MCY 2.0780e-003 1.8510e-003
tblVehicleEF MCY 5.9800e-004 4.6800e-004
CalEEMod Version: CalEEMod.2020.4.0 Page 1 of 1
Date: 8/25/2022 12:15 PM
2655 The Alameda, Santa Clara - Santa Clara County, Annual EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Not Applied tblVehicleEF MCY 0.48 0.00
tblVehicleEF MCY 2.71 1.24
tblVehicleEF MCY 0.90 0.09
tblVehicleEF MCY 0.67 3.56
tblVehicleEF MDV 0.72 0.87
tblVehicleEF MDV 2.79 3.62
tblVehicleEF MDV 2.9890e-003 3.3070e-003
tblVehicleEF MDV 0.06 0.09
tblVehicleEF MCY 0.52 3.76
tblVehicleEF MCY 2.09 1.42
tblVehicleEF MDV 0.06 0.09
tblVehicleEF MDV 0.26 0.38
tblVehicleEF MDV 6.9960e-003 7.5830e-003
tblVehicleEF MDV 0.03 0.04
tblVehicleEF MDV 351.34 394.23
tblVehicleEF MDV 74.92 100.26
tblVehicleEF MDV 1.2620e-003 1.2070e-003
tblVehicleEF MDV 1.5940e-003 1.9020e-003
tblVehicleEF MDV 1.7330e-003 2.0690e-003
tblVehicleEF MDV 0.02 3.1400e-003
tblVehicleEF MDV 0.04 8.9720e-003
tblVehicleEF MDV 1.3680e-003 1.3100e-003
tblVehicleEF MDV 0.06 0.26
tblVehicleEF MDV 0.31 0.45
tblVehicleEF MDV 0.06 0.00
tblVehicleEF MDV 0.01 0.01
tblVehicleEF MDV 0.07 0.34
tblVehicleEF MDV 0.12 0.09
tblVehicleEF MDV 3.4720e-003 3.8950e-003
CalEEMod Version: CalEEMod.2020.4.0 Page 1 of 1
Date: 8/25/2022 12:15 PM
2655 The Alameda, Santa Clara - Santa Clara County, Annual EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Not Applied tblVehicleEF MDV 0.06 0.00
tblVehicleEF MDV 0.02 0.02
tblVehicleEF MDV 0.07 0.34
tblVehicleEF MDV 0.12 0.09
tblVehicleEF MDV 7.4100e-004 9.9100e-004
tblVehicleEF MH 0.80 1.11
tblVehicleEF MH 1.94 2.37
tblVehicleEF MH 8.5740e-003 0.01
tblVehicleEF MH 0.02 0.03
tblVehicleEF MDV 0.06 0.26
tblVehicleEF MDV 0.34 0.49
tblVehicleEF MH 1.26 1.49
tblVehicleEF MH 0.24 0.30
tblVehicleEF MH 0.06 0.07
tblVehicleEF MH 0.03 0.03
tblVehicleEF MH 1,472.19 1,680.13
tblVehicleEF MH 17.63 22.07
tblVehicleEF MH 0.06 0.02
tblVehicleEF MH 3.2830e-003 3.3090e-003
tblVehicleEF MH 0.02 0.03
tblVehicleEF MH 2.5000e-004 2.9600e-004
tblVehicleEF MH 0.13 0.04
tblVehicleEF MH 0.01 0.01
tblVehicleEF MH 0.21 0.00
tblVehicleEF MH 0.06 0.08
tblVehicleEF MH 0.58 30.56
tblVehicleEF MH 0.05 7.99
tblVehicleEF MH 0.02 0.03
tblVehicleEF MH 2.3000e-004 2.7200e-004
CalEEMod Version: CalEEMod.2020.4.0 Page 1 of 1
Date: 8/25/2022 12:15 PM
2655 The Alameda, Santa Clara - Santa Clara County, Annual EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Not Applied tblVehicleEF MH 0.58 30.56
tblVehicleEF MH 0.05 7.99
tblVehicleEF MH 0.01 0.02
tblVehicleEF MH 1.7400e-004 2.1800e-004
tblVehicleEF MH 0.01 0.19
tblVehicleEF MH 0.09 0.11
tblVehicleEF MHD 3.6170e-003 0.01
tblVehicleEF MHD 1.5120e-003 9.5360e-003
tblVehicleEF MH 0.01 0.19
tblVehicleEF MH 0.10 0.12
tblVehicleEF MH 0.21 0.00
tblVehicleEF MH 0.08 0.10
tblVehicleEF MHD 70.85 158.59
tblVehicleEF MHD 1,065.91 1,213.65
tblVehicleEF MHD 0.21 0.30
tblVehicleEF MHD 1.02 1.00
tblVehicleEF MHD 8.8700e-003 8.3140e-003
tblVehicleEF MHD 0.39 0.67
tblVehicleEF MHD 0.40 0.85
tblVehicleEF MHD 1.45 1.01
tblVehicleEF MHD 0.14 0.16
tblVehicleEF MHD 7.2880e-003 5.8580e-003
tblVehicleEF MHD 8.98 8.21
tblVehicleEF MHD 0.01 0.02
tblVehicleEF MHD 1.1300e-004 1.0100e-004
tblVehicleEF MHD 0.13 0.05
tblVehicleEF MHD 7.0640e-003 0.01
tblVehicleEF MHD 1.70 1.40
tblVehicleEF MHD 3.2300e-004 1.7620e-003
CalEEMod Version: CalEEMod.2020.4.0 Page 1 of 1
Date: 8/25/2022 12:15 PM
2655 The Alameda, Santa Clara - Santa Clara County, Annual EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Not Applied tblVehicleEF MHD 3.0900e-004 1.6850e-003
tblVehicleEF MHD 0.02 5.6030e-003
tblVehicleEF MHD 0.02 0.03
tblVehicleEF MHD 1.0400e-004 9.3000e-005
tblVehicleEF MHD 3.5500e-004 0.02
tblVehicleEF MHD 0.06 0.02
tblVehicleEF MHD 6.7520e-003 0.01
tblVehicleEF MHD 6.7200e-004 1.4720e-003
tblVehicleEF MHD 0.01 0.01
tblVehicleEF MHD 0.02 0.05
tblVehicleEF MHD 0.05 0.05
tblVehicleEF MHD 1.8800e-004 0.00
tblVehicleEF MHD 0.01 0.03
tblVehicleEF MHD 1.8800e-004 0.00
tblVehicleEF MHD 0.02 0.05
tblVehicleEF MHD 0.02 5.6030e-003
tblVehicleEF MHD 0.02 0.04
tblVehicleEF MHD 8.9000e-005 8.1000e-005
tblVehicleEF MHD 3.5500e-004 0.02
tblVehicleEF OBUS 0.02 0.02
tblVehicleEF OBUS 0.60 0.52
tblVehicleEF OBUS 7.0670e-003 7.5140e-003
tblVehicleEF OBUS 3.3170e-003 9.5930e-003
tblVehicleEF MHD 0.02 0.05
tblVehicleEF MHD 0.05 0.05
tblVehicleEF OBUS 94.25 87.04
tblVehicleEF OBUS 1,303.83 1,366.10
tblVehicleEF OBUS 0.39 0.44
tblVehicleEF OBUS 1.79 1.87
CalEEMod Version: CalEEMod.2020.4.0 Page 1 of 1
Date: 8/25/2022 12:15 PM
2655 The Alameda, Santa Clara - Santa Clara County, Annual EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Not Applied tblVehicleEF OBUS 14.82 14.86
tblVehicleEF OBUS 0.01 0.01
tblVehicleEF OBUS 1.10 0.99
tblVehicleEF OBUS 1.2700e-004 4.0400e-004
tblVehicleEF OBUS 0.39 0.36
tblVehicleEF OBUS 1.46 0.97
tblVehicleEF OBUS 0.13 0.16
tblVehicleEF OBUS 0.02 0.01
tblVehicleEF OBUS 0.06 0.02
tblVehicleEF OBUS 7.1370e-003 0.01
tblVehicleEF OBUS 1.4700e-004 1.3100e-004
tblVehicleEF OBUS 1.2200e-004 3.8700e-004
tblVehicleEF OBUS 0.13 0.05
tblVehicleEF OBUS 7.4740e-003 0.02
tblVehicleEF OBUS 4.8600e-004 0.00
tblVehicleEF OBUS 0.02 0.04
tblVehicleEF OBUS 0.02 0.02
tblVehicleEF OBUS 0.05 0.04
tblVehicleEF OBUS 1.3500e-004 1.2100e-004
tblVehicleEF OBUS 1.0870e-003 0.07
tblVehicleEF OBUS 1.0870e-003 0.07
tblVehicleEF OBUS 0.02 0.02
tblVehicleEF OBUS 8.9500e-004 8.2300e-004
tblVehicleEF OBUS 0.01 0.01
tblVehicleEF OBUS 0.04 0.08
tblVehicleEF OBUS 0.09 0.09
tblVehicleEF OBUS 0.03 0.06
tblVehicleEF OBUS 0.06 0.05
tblVehicleEF OBUS 4.8600e-004 0.00
CalEEMod Version: CalEEMod.2020.4.0 Page 1 of 1
Date: 8/25/2022 12:15 PM
2655 The Alameda, Santa Clara - Santa Clara County, Annual EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Not Applied tblVehicleEF OBUS 0.09 0.10
tblVehicleEF SBUS 0.06 0.08
tblVehicleEF OBUS 0.04 0.08
tblVehicleEF SBUS 0.74 0.67
tblVehicleEF SBUS 345.98 189.05
tblVehicleEF SBUS 2.37 1.69
tblVehicleEF SBUS 0.47 0.86
tblVehicleEF SBUS 5.7290e-003 0.09
tblVehicleEF SBUS 5.1560e-003 4.8980e-003
tblVehicleEF SBUS 5.0100e-003 4.3540e-003
tblVehicleEF SBUS 3.34 1.34
tblVehicleEF SBUS 0.05 0.02
tblVehicleEF SBUS 0.13 0.13
tblVehicleEF SBUS 1,037.30 1,017.84
tblVehicleEF SBUS 4.26 3.78
tblVehicleEF SBUS 0.01 0.01
tblVehicleEF SBUS 0.03 0.01
tblVehicleEF SBUS 3.3290e-003 1.2090e-003
tblVehicleEF SBUS 0.74 0.04
tblVehicleEF SBUS 4.41 2.41
tblVehicleEF SBUS 0.90 0.49
tblVehicleEF SBUS 0.03 0.01
tblVehicleEF SBUS 4.7000e-005 3.8000e-005
tblVehicleEF SBUS 0.32 0.02
tblVehicleEF SBUS 2.7110e-003 2.6430e-003
tblVehicleEF SBUS 5.1000e-005 4.1000e-005
tblVehicleEF SBUS 3.1850e-003 1.1550e-003
tblVehicleEF SBUS 5.9800e-004 0.03
tblVehicleEF SBUS 5.7950e-003 7.7750e-003
CalEEMod Version: CalEEMod.2020.4.0 Page 1 of 1
Date: 8/25/2022 12:15 PM
2655 The Alameda, Santa Clara - Santa Clara County, Annual EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Not Applied tblVehicleEF SBUS 0.08 0.05
tblVehicleEF SBUS 0.01 0.02
tblVehicleEF SBUS 0.26 0.19
tblVehicleEF SBUS 2.6700e-004 0.00
tblVehicleEF SBUS 5.9800e-004 0.03
tblVehicleEF SBUS 5.7950e-003 7.7750e-003
tblVehicleEF SBUS 9.9090e-003 9.4580e-003
tblVehicleEF SBUS 4.2000e-005 3.7000e-005
tblVehicleEF SBUS 0.03 0.03
tblVehicleEF SBUS 3.2940e-003 1.7180e-003
tblVehicleEF SBUS 0.03 0.03
tblVehicleEF UBUS 1.66 0.50
tblVehicleEF SBUS 0.09 0.15
tblVehicleEF SBUS 0.01 0.02
tblVehicleEF SBUS 0.38 0.30
tblVehicleEF SBUS 2.6700e-004 0.00
tblVehicleEF UBUS 1.39 3.18
tblVehicleEF UBUS 0.28 0.17
tblVehicleEF UBUS 0.14 0.52
tblVehicleEF UBUS 1,657.49 1,082.15
tblVehicleEF UBUS 1.6700e-003 3.7330e-003
tblVehicleEF UBUS 12.57 5.88
tblVehicleEF UBUS 0.03 0.04
tblVehicleEF UBUS 5.2020e-003 5.6850e-003
tblVehicleEF UBUS 0.01 0.04
tblVehicleEF UBUS 0.07 0.12
tblVehicleEF UBUS 1.1100e-003 6.1420e-003
tblVehicleEF UBUS 0.71 0.30
tblVehicleEF UBUS 1.5000e-005 1.2000e-005
CalEEMod Version: CalEEMod.2020.4.0 Page 1 of 1
Date: 8/25/2022 12:15 PM
2655 The Alameda, Santa Clara - Santa Clara County, Annual EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Not Applied tblVehicleEF UBUS 1.4000e-005 1.1000e-005
tblVehicleEF UBUS 2.4000e-005 0.01
tblVehicleEF UBUS 8.3320e-003 0.01
tblVehicleEF UBUS 4.9760e-003 5.4350e-003
tblVehicleEF UBUS 0.03 0.04
tblVehicleEF UBUS 6.9810e-003 0.01
tblVehicleEF UBUS 0.01 8.8540e-003
tblVehicleEF UBUS 0.02 0.06
tblVehicleEF UBUS 4.0000e-005 7.9870e-003
tblVehicleEF UBUS 2.0100e-004 3.7860e-003
tblVehicleEF UBUS 1.1000e-005 0.00
tblVehicleEF UBUS 1.70 0.57
tblVehicleEF UBUS 4.0000e-005 7.9870e-003
tblVehicleEF UBUS 2.0100e-004 3.7860e-003
tblVehicleEF UBUS 1.1000e-005 0.00
tblVehicleEF UBUS 1.4000e-005 3.1000e-005
tblVehicleEF UBUS 2.4000e-005 0.01
tblVehicleTrips SU_TR 20.43 14.97
tblVehicleTrips WD_TR 5.44 4.21
tblVehicleTrips ST_TR 42.04 30.80
tblVehicleTrips SU_TR 4.09 3.16
tblVehicleEF UBUS 7.6430e-003 0.01
tblVehicleTrips ST_TR 4.91 3.80
tblWater AerobicPercent 87.46 100.00
tblWater AnaerobicandFacultativeLagoonsPercent 2.21 0.00 tblWater AerobicPercent 87.46 100.00
tblWater AerobicPercent 87.46 100.00
tblVehicleTrips WD_TR 44.32 32.47
tblWater AerobicPercent 87.46 100.00
CalEEMod Version: CalEEMod.2020.4.0 Page 1 of 1
Date: 8/25/2022 12:15 PM
2655 The Alameda, Santa Clara - Santa Clara County, Annual EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Not Applied tblWater SepticTankPercent 10.33 0.00
tblWater SepticTankPercent 10.33 0.00
tblWater AnaerobicandFacultativeLagoonsPercent 2.21 0.00 tblWater SepticTankPercent 10.33 0.00
tblWater AnaerobicandFacultativeLagoonsPercent 2.21 0.00 tblWater AnaerobicandFacultativeLagoonsPercent 2.21 0.00 tblWoodstoves WoodstoveWoodMass 582.40 0.00
2.0 Emissions Summary
tblWoodstoves NumberNoncatalytic 0.78 0.00
tblWoodstoves WoodstoveDayYear 14.12 0.00
tblWater SepticTankPercent 10.33 0.00
tblWoodstoves NumberCatalytic 0.78 0.00
7.2000e-
003
0.0688 0.0879
N2O CO2e
Year tons/yr MT/yr
PM2.5 Total Bio- CO2 NBio- CO2 Total CO2 CH4
2.1 Overall Construction
Unmitigated Construction
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10 Total Fugitive
PM2.5
Exhaust
PM2.5
66.9652 66.9652 0.0120 0.0000 67.2646
4.3100e-
003
0.0000 13.4317
2024 0.2108 0.3775 0.4472 7.7000e-004 0.0000 0.0187 0.0187 0.0000 0.0179 0.0179 0.0000
3.2200e-
003
3.2900e-003 0.0000 13.3239 13.32391.5000e-004 4.2000e-
004
3.5000e-
003
3.9200e-003 6.0000e-
005
2023
67.2646
5.1000e-
004
0.0000 9.3917
Maximum 0.2108 0.3775 0.4472 7.7000e-004 4.2000e-
004
0.0187 0.0187 6.0000e-
005
0.0179 0.0179 0.0000
1.8900e-
003
1.8900e-003 0.0000 9.3790 9.37901.1000e-004 0.0000 1.8900e- 003
1.8900e-003 0.00002025 0.0500 0.0421 0.0665
66.9652 66.9652 0.0120 0.0000
CalEEMod Version: CalEEMod.2020.4.0 Page 1 of 1
Date: 8/25/2022 12:15 PM
2655 The Alameda, Santa Clara - Santa Clara County, Annual EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Not Applied Mitigated Construction
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10 Total Fugitive
PM2.5
Exhaust
PM2.5
2.5000e-
004
4.4000e-004 3.0000e-
005
2023 2.7700e-
003
0.0594 0.1057
N2O CO2e
Year tons/yr MT/yr
PM2.5 Total Bio- CO2 NBio- CO2 Total CO2 CH4
0.0458 0.0389 0.0673
66.9651 66.9651 0.0120 0.0000 67.2645
4.3100e-
003
0.0000 13.4317
2024 0.1790 0.2781 0.4899 7.7000e-004 0.0000 1.2300e-
003
1.2300e-003 0.0000 1.2300e-
003
1.2300e-003 0.0000
2.5000e-
004
2.8000e-004 0.0000 13.3239 13.32391.5000e-004 1.9000e-
004
66.9651 66.9651 0.0120 0.0000 67.2645
5.1000e-
004
0.0000 9.3917
Maximum 0.1790 0.2781 0.4899 7.7000e-004 1.9000e-
004
1.2300e-
003
1.2300e-003 3.0000e-
005
1.2300e-
003
1.2300e-003 0.0000
1.5000e-
004
1.5000e-004 0.0000 9.3789 9.37891.1000e-004 0.0000 1.5000e- 004
1.5000e-004 0.00002025
N20 CO2e
Percent
Reduction
15.10 22.90 -10.22 0.00 54.76 93.24 92.59 50.00 92.93 92.82 0.00 0.00 0.00 PM2.5
Total
Bio- CO2 NBio-CO2 Total CO2 CH4Fugitive
PM10
Exhaust
PM10
PM10 Total Fugitive
PM2.5
Exhaust
PM2.5
ROG NOx CO SO2
2 12-6-2023 3-5-2024 0.0631 0.0384
1 9-6-2023 12-5-2023 0.0577 0.0518
0.00 0.00 0.00
Quarter Start Date End Date Maximum Unmitigated ROG + NOX (tons/qu arter) Maximum Mitigated ROG + NOX (tons/quarter) 6 12-6-2024 3-5-2025 0.1669 0.1476
5 9-6-2024 12-5-2024 0.2792 0.2310
4 6-6-2024 9-5-2024 0.1385 0.1052
3 3-6-2024 6-5-2024 0.0538 0.0325
2.2 Overall Operational
Highest 0.2792 0.2310
CalEEMod Version: CalEEMod.2020.4.0 Page 1 of 1
Date: 8/25/2022 12:15 PM
2655 The Alameda, Santa Clara - Santa Clara County, Annual EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Not Applied Unmitigated Operational
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10 Total Fugitive
PM2.5
Exhaust
PM2.5
0.4736 0.47362.0000e-005 1.6100e-
003
1.6100e-003Area 0.1456 3.3400e-003 0.2896
N2O CO2e
Category tons/yr MT/yr
PM2.5 Total Bio- CO2 NBio- CO2 Total CO2 CH4
1.1100e-
003
0.1471 0.0364Mobile 0.1175 0.0784 0.7194
47.8873 47.8873 5.1300e-
003
6.2000e-004 48.2009
4.5000e-
004
0.0000 0.4850
Energy 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000
1.6100e-
003
1.6100e-003 0.0000
0.0000 3.9705 0.2347 0.0000 9.8368
8.3900e-
003
7.0200e-003 146.3101
Waste 0.0000 0.0000 0.0000 0.0000 3.9705
1.0300e-
003
0.0375 0.0000 144.0089 144.00891.5600e-003 0.1460
195.1942 200.1041 0.2522 9.7200e-003 209.3046
3.5400e-
003
2.0800e-003 4.4719
Total 0.2631 0.0817 1.0090 1.5800e-003 0.1460 2.7200e-
003
0.1487 0.0364 2.6400e-
003
0.0391 4.9099
0.0000 0.0000 0.9394 2.8244 3.76380.0000 0.0000Water
N2O CO2e
Category tons/yr MT/yr
PM2.5 Total Bio- CO2 NBio- CO2 Total CO2 CH4
Mitigated Operational
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10 Total Fugitive
PM2.5
Exhaust
PM2.5
4.5000e-
004
0.0000 0.4850
Energy 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000
1.6100e-
003
1.6100e-003 0.0000 0.4736 0.47362.0000e-005 1.6100e-
003
1.6100e-003Area 0.1456 3.3400e-003 0.2896
144.0089 144.00891.5600e-003 0.1460 1.1100e-
003
0.1471 0.0364Mobile 0.1175 0.0784 0.7194
47.8873 47.8873 5.1300e-
003
6.2000e-004 48.2009
0.0000 3.9705 0.2347 0.0000 9.8368
8.3900e-
003
7.0200e-003 146.3101
Waste 0.0000 0.0000 0.0000 0.0000 3.9705
1.0300e-
003
0.0375 0.0000
CalEEMod Version: CalEEMod.2020.4.0 Page 1 of 1
Date: 8/25/2022 12:15 PM
2655 The Alameda, Santa Clara - Santa Clara County, Annual EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Not Applied
0.0000 0.0000Water
ROG NOx CO SO2
195.1942 200.1041 0.2522 9.7200e-003 209.3046
3.5400e-
003
2.0800e-003 4.4719
Total 0.2631 0.0817 1.0090 1.5800e-003 0.1460 2.7200e-
003
0.1487 0.0364 2.6400e-
003
0.0391 4.9099
0.0000 0.0000 0.9394 2.8244 3.7638
0.00 0.00 0.00
3.0 Construction Detail
Construction Phase
N20 CO2e
Percent
Reduction
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 PM2.5
Total
Bio- CO2 NBio-CO2 Total CO2 CH4Fugitive
PM10
Exhaust
PM10
PM10 Total Fugitive
PM2.5
Exhaust
PM2.5
54 4
3 Trenching Trenching 11/9/2023 4/30/2024 5 124
2 Grading Grading 9/8/2023 11/8/2023
Num Days
Week
Num Days Phase Description
1 Site Preparation Site Preparation 9/6/2023 9/6/2023 5 1 Phase
Number
Phase Name Phase Type Start Date End Date
52 8
Acres of Grading (Site Preparation Phase): 0
Acres of Grading (Grading Phase): 0
6 Paving Paving 11/1/2024 12/10/2024
5 163
5 Architectural Coating Architectural Coating 8/1/2024 2/10/2025 5 13 8 4 Building Construction Building Construction 5/10/2024 12/24/2024
0.41 Site Preparation Tractors/Loaders/Backhoes 1 8.00 97 0.37 Site Preparation Graders 0 0.00 187
Acres of Paving: 0
Residential Indoor: 56,417; Residential Outdoor: 18,806; Non-Residential Indoor: 2,310; Non-Residential Outdoor: 770; Striped Parking Area: 1,176 OffRoad Equipment
Phase Name Offroad Equipment Type Amount Usage Hours Horse Power Loa d Factor CalEEMod Version: CalEEMod.2020.4.0 Page 1 of 1
Date: 8/25/2022 12:15 PM
2655 The Alameda, Santa Clara - Santa Clara County, Annual EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Not Applied
0.41 Grading Rubber Tired Dozers 0 0.00 247 0.40
Grading Graders 0 0.00 187
0.50 Grading Excavators 1 2.70 158 0.38
Grading Bore/Drill Rigs 1 0.90 221
0.20 Building Construction Cranes 1 2.00 231 0.29
Trenching Forklifts 2 5.20 89
0.37 Trenching Cranes 1 1.30 231 0.29
Grading Tractors/Loaders/Backhoes 1 4.00 97
0.45 Architectural Coating Air Compressors 4 3.80 78 0.48 Building Construction Welders 1 0.20 46
0.20 Building Construction Tractors/Loaders/Backhoes 0 0.00 97 0.37 Building Construction Forklifts 1 5.30 89
0.42 Paving Paving Equipment 1 0.60 132 0.36
Paving Pavers 1 0.60 130
0.56 Paving Concrete/Industrial Saws 1 0.70 81 0.73
Paving Cement and Mortar Mixers 0 0.00 9
Trips and VMT
Phase Name Offroad Equipment
Count
Worker Trip
Number
Vendor Trip
Number
0.38 Paving Tractors/Loaders/Backhoes 2 0.90 97 0.37
Paving Rollers 1 0.60 80
Vendor Vehicle
Class
Hauling Vehicle
Class
Site Preparation 1 0.00 0.00 0.00 10.80 7.30 20.00 LD_Mix HDT_Mix HHDT Hauling Trip
Number
Worker Trip
Length
Vendor Trip
Length
Hauling Trip
Length
Worker Vehicle
Class
Building Construction 3 0.00 0.00 0.00
HHDT
Trenching 3 0.00 0.00 0.00 10.80 7.30 20.00 LD_Mix HDT_Mix HHDT
10.80 7.30 20.00 LD_Mix HDT_MixGrading 3 0.00 0.00 0.00 HHDT10.80 7.30 20.00 LD_Mix HDT_MixPaving 6 0.00 0.00 0.00 HHDT
Architectural Coating 4 0.00 0.00 0.00 10.80 7.30 20.00 LD_Mix HDT_Mix HH DT
10.80 7.30 20.00 LD_Mix HDT_Mix
CalEEMod Version: CalEEMod.2020.4.0 Page 1 of 1
Date: 8/25/2022 12:15 PM
2655 The Alameda, Santa Clara - Santa Clara County, Annual EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Not Applied
3.1 Mitigation Measures Construction
Use Cleaner Engines for Construction Equipment
Water Exposed Area
Reduce Vehicle Speed on Unpaved Roads
N2O CO2e
Category tons/yr MT/yr
PM2.5 Total Bio- CO2 NBio- CO2 Total CO2 CH4
3.2 Site Preparation - 2023
Unmitigated Construction On-Site
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10 Total Fugitive
PM2.5
Exhaust
PM2.5
0.1368 0.1368 4.0000e-
005
0.0000 0.1379
0.0000 0.0000 0.0000
Off-Road 8.0000e-
005
7.7000e-
004
1.1200e-003 0.0000 4.0000e-
005
4.0000e-005 3.0000e-
005
3.0000e-005 0.0000
0.0000 0.0000 0.0000 0.0000 0.00000.0000 0.0000 0.0000 0.0000Fugitive Dust
4.0000e-
005
0.0000 0.1379
Unmitigated Construction Off-Site
3.0000e-
005
3.0000e-005 0.0000 0.1368 0.13680.0000 0.0000 4.0000e-
005
4.0000e-005 0.0000Total 8.0000e-
005
7.7000e-
004
1.1200e-003
0.0000 0.0000 0.0000Hauling 0.0000 0.0000 0.0000
CH4 N2O CO2e
Category tons/yr MT/yr
Exhaust
PM2.5
PM2.5 Total Bio- CO2 NBio- CO2 Total CO2SO2 Fugitive
PM10
Exhaust
PM10
PM10 Total Fugitive
PM2.5
ROG NOx CO
0.0000 0.0000 0.0000 0.0000 0.0000
0.0000 0.0000 0.0000
Vendor 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0 000 0.0000
0.0000 0.0000 0.0000 0.0000 0.00000.0000 0.0000
CalEEMod Version: CalEEMod.2020.4.0 Page 1 of 1
Date: 8/25/2022 12:15 PM
2655 The Alameda, Santa Clara - Santa Clara County, Annual EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Not Applied
0.0000 0.0000 0.0000
0.0000 0.0000 0.0000 0.0000 0.0000
0.0000 0.0000 0.0000
Total 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.00 00 0.0000
0.0000 0.0000 0.0000 0.0000 0.00000.0000 0.0000 0.0000 0.0000 0.0000Worker N2O CO2e
Category tons/yr MT/yr
PM2.5 Total Bio- CO2 NBio- CO2 Total CO2 CH4
Mitigated Construction On-Site
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10 Total Fugitive
PM2.5
Exhaust
PM2.5
0.1368 0.1368 4.0000e-
005
0.0000 0.1379
0.0000 0.0000 0.0000
Off-Road 3.0000e-
005
6.8000e-
004
1.1700e-003 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000
0.0000 0.0000 0.0000 0.0000 0.00000.0000 0.0000 0.0000 0.0000Fugitive Dust
4.0000e-
005
0.0000 0.1379
Mitigated Construction Off-Site
0.0000 0.0000 0.0000 0.1368 0.13680.0000 0.0000 0.0000 0.0000 0.0000Total 3.0000e- 005
6.8000e-
004
1.1700e-003
0.0000 0.0000 0.0000Hauling 0.0000 0.0000 0.0000
CH4 N2O CO2e
Category tons/yr MT/yr
Exhaust
PM2.5
PM2.5 Total Bio- CO2 NBio- CO2 Total CO2SO2 Fugitive
PM10
Exhaust
PM10
PM10 Total Fugitive
PM2.5
ROG NOx CO
0.0000 0.0000 0.0000 0.0000 0.0000
0.0000 0.0000 0.0000
Vendor 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0 000 0.0000
0.0000 0.0000 0.0000 0.0000 0.00000.0000 0.0000
CalEEMod Version: CalEEMod.2020.4.0 Page 1 of 1
Date: 8/25/2022 12:15 PM
2655 The Alameda, Santa Clara - Santa Clara County, Annual EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Not Applied
0.0000 0.0000 0.0000
0.0000 0.0000 0.0000 0.0000 0.0000
0.0000 0.0000 0.0000
Total 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.00 00 0.0000
0.0000 0.0000 0.0000 0.0000 0.00000.0000 0.0000 0.0000 0.0000 0.0000Worker N2O CO2e
Category tons/yr MT/yr
PM2.5 Total Bio- CO2 NBio- CO2 Total CO2 CH4
3.3 Grading - 2023
Unmitigated Construction On-Site
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10 Total Fugitive
PM2.5
Exhaust
PM2.5
8.4334 8.4334 2.7300e-
003
0.0000 8.5016
0.0000 0.0000 0.0000
Off-Road 3.6000e-
003
0.0334 0.0538 1.0000e-004 1.5600e-
003
1.5600e-003 1.4400e-
003
1.4400e-003 0.0000
0.0000 6.0000e-005 0.0000 0.0000 0.00004.2000e-
004
0.0000 4.2000e-004 6.0000e-
005
Fugitive Dust
2.7300e-
003
0.0000 8.5016
Unmitigated Construction Off-Site
1.4400e-
003
1.5000e-003 0.0000 8.4334 8.43341.0000e-004 4.2000e-
004
1.5600e-
003
1.9800e-003 6.0000e-
005
Total 3.6000e-
003
0.0334 0.0538
0.0000 0.0000 0.0000Hauling 0.0000 0.0000 0.0000
CH4 N2O CO2e
Category tons/yr MT/yr
Exhaust
PM2.5
PM2.5 Total Bio- CO2 NBio- CO2 Total CO2SO2 Fugitive
PM10
Exhaust
PM10
PM10 Total Fugitive
PM2.5
ROG NOx CO
0.0000 0.0000 0.0000 0.0000 0.0000
0.0000 0.0000 0.0000
Vendor 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0 000 0.0000
0.0000 0.0000 0.0000 0.0000 0.00000.0000 0.0000
CalEEMod Version: CalEEMod.2020.4.0 Page 1 of 1
Date: 8/25/2022 12:15 PM
2655 The Alameda, Santa Clara - Santa Clara County, Annual EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Not Applied
0.0000 0.0000 0.0000
0.0000 0.0000 0.0000 0.0000 0.0000
0.0000 0.0000 0.0000
Total 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.00 00 0.0000
0.0000 0.0000 0.0000 0.0000 0.00000.0000 0.0000 0.0000 0.0000 0.0000Worker N2O CO2e
Category tons/yr MT/yr
PM2.5 Total Bio- CO2 NBio- CO2 Total CO2 CH4
Mitigated Construction On-Site
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10 Total Fugitive
PM2.5
Exhaust
PM2.5
8.4334 8.4334 2.7300e-
003
0.0000 8.5016
0.0000 0.0000 0.0000
Off-Road 1.6200e-
003
0.0380 0.0674 1.0000e-004 1.6000e-
004
1.6000e-004 1.6000e-
004
1.6000e-004 0.0000
0.0000 3.0000e-005 0.0000 0.0000 0.00001.9000e-
004
0.0000 1.9000e-004 3.0000e-
005
Fugitive Dust
2.7300e-
003
0.0000 8.5016
Mitigated Construction Off-Site
1.6000e-
004
1.9000e-004 0.0000 8.4334 8.43341.0000e-004 1.9000e-
004
1.6000e-
004
3.5000e-004 3.0000e-
005
Total 1.6200e-
003
0.0380 0.0674
0.0000 0.0000 0.0000Hauling 0.0000 0.0000 0.0000
CH4 N2O CO2e
Category tons/yr MT/yr
Exhaust
PM2.5
PM2.5 Total Bio- CO2 NBio- CO2 Total CO2SO2 Fugitive
PM10
Exhaust
PM10
PM10 Total Fugitive
PM2.5
ROG NOx CO
0.0000 0.0000 0.0000 0.0000 0.0000
0.0000 0.0000 0.0000
Vendor 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0 000 0.0000
0.0000 0.0000 0.0000 0.0000 0.00000.0000 0.0000
CalEEMod Version: CalEEMod.2020.4.0 Page 1 of 1
Date: 8/25/2022 12:15 PM
2655 The Alameda, Santa Clara - Santa Clara County, Annual EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Not Applied
0.0000 0.0000 0.0000
0.0000 0.0000 0.0000 0.0000 0.0000
0.0000 0.0000 0.0000
Total 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.00 00 0.0000
0.0000 0.0000 0.0000 0.0000 0.00000.0000 0.0000 0.0000 0.0000 0.0000Worker N2O CO2e
Category tons/yr MT/yr
PM2.5 Total Bio- CO2 NBio- CO2 Total CO2 CH4
3.4 Trenching - 2023
Unmitigated Construction On-Site
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10 Total Fugitive
PM2.5
Exhaust
PM2.5
4.7922
1.5400e-
003
0.0000 4.7922
Total 3.5200e-
003
0.0346 0.0331 5.0000e-005 1.9100e-
003
1.9100e-003 1.7500e-
003
1.7500e-003 0.0000
1.7500e-
003
1.7500e-003 0.0000 4.7537 4.75375.0000e-005 1.9100e-
003
1.9100e-003Off-Road 3.5200e-
003
0.0346 0.0331
Unmitigated Construction Off-Site
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10 Total Fugitive
PM2.5
Exhaust
PM2.5
4.7537 4.7537 1.5400e-
003
0.0000
0.0000 0.0000 0.0000Hauling 0.0000 0.0000 0.0000
N2O CO2e
Category tons/yr MT/yr
PM2.5 Total Bio- CO2 NBio- CO2 Total CO2 CH4
0.0000 0.0000 0.0000
0.0000 0.0000 0.0000 0.0000 0.0000
0.0000 0.0000 0.0000
Vendor 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0 000 0.0000
0.0000 0.0000 0.0000 0.0000 0.00000.0000 0.0000
0.0000 0.0000 0.00000.0000 0.0000 0.0000 0.0000 0.00000.0000 0.0000 0.0000 0.0000 0.0000Worker CalEEMod Version: CalEEMod.2020.4.0 Page 1 of 1
Date: 8/25/2022 12:15 PM
2655 The Alameda, Santa Clara - Santa Clara County, Annual EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Not Applied
0.0000 0.0000 0.0000 0.0000 0.0000Total 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.00 00 0.0000 N2O CO2e
Category tons/yr MT/yr
PM2.5 Total Bio- CO2 NBio- CO2 Total CO2 CH4
Mitigated Construction On-Site
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10 Total Fugitive
PM2.5
Exhaust
PM2.5
4.7922
1.5400e-
003
0.0000 4.7922
Total 1.1100e-
003
0.0207 0.0372 5.0000e-005 9.0000e-
005
9.0000e-005 9.0000e-
005
9.0000e-005 0.0000
9.0000e-
005
9.0000e-005 0.0000 4.7537 4.75375.0000e-005 9.0000e-
005
9.0000e-005Off-Road 1.1100e-
003
0.0207 0.0372
Mitigated Construction Off-Site
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10 Total Fugitive
PM2.5
Exhaust
PM2.5
4.7537 4.7537 1.5400e-
003
0.0000
0.0000 0.0000 0.0000Hauling 0.0000 0.0000 0.0000
N2O CO2e
Category tons/yr MT/yr
PM2.5 Total Bio- CO2 NBio- CO2 Total CO2 CH4
0.0000 0.0000 0.0000
0.0000 0.0000 0.0000 0.0000 0.0000
0.0000 0.0000 0.0000
Vendor 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0 000 0.0000
0.0000 0.0000 0.0000 0.0000 0.00000.0000 0.0000
0.0000 0.0000 0.0000 0.0000 0.0000
0.0000 0.0000 0.0000
Total 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.00 00 0.0000
0.0000 0.0000 0.0000 0.0000 0.00000.0000 0.0000 0.0000 0.0000 0.0000Worker CalEEMod Version: CalEEMod.2020.4.0 Page 1 of 1
Date: 8/25/2022 12:15 PM
2655 The Alameda, Santa Clara - Santa Clara County, Annual EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Not Applied N2O CO2e
Category tons/yr MT/yr
PM2.5 Total Bio- CO2 NBio- CO2 Total CO2 CH4
3.4 Trenching - 2024
Unmitigated Construction On-Site
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10 Total Fugitive
PM2.5
Exhaust
PM2.5
11.2680
3.6200e-
003
0.0000 11.2680
Total 7.6700e-
003
0.0747 0.0770 1.3000e-004 3.9200e-
003
3.9200e-003 3.6000e-
003
3.6000e-003 0.0000
3.6000e-
003
3.6000e-003 0.0000 11.1776 11.17761.3000e-004 3.9200e-
003
3.9200e-003Off-Road 7.6700e-
003
0.0747 0.0770
Unmitigated Construction Off-Site
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10 Total Fugitive
PM2.5
Exhaust
PM2.5
11.1776 11.1776 3.6200e-
003
0.0000
0.0000 0.0000 0.0000Hauling 0.0000 0.0000 0.0000
N2O CO2e
Category tons/yr MT/yr
PM2.5 Total Bio- CO2 NBio- CO2 Total CO2 CH4
0.0000 0.0000 0.0000
0.0000 0.0000 0.0000 0.0000 0.0000
0.0000 0.0000 0.0000
Vendor 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0 000 0.0000
0.0000 0.0000 0.0000 0.0000 0.00000.0000 0.0000
0.0000 0.0000 0.0000 0.0000 0.0000
0.0000 0.0000 0.0000
Total 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.00 00 0.0000
0.0000 0.0000 0.0000 0.0000 0.00000.0000 0.0000 0.0000 0.0000 0.0000Worker CalEEMod Version: CalEEMod.2020.4.0 Page 1 of 1
Date: 8/25/2022 12:15 PM
2655 The Alameda, Santa Clara - Santa Clara County, Annual EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Not Applied N2O CO2e
Category tons/yr MT/yr
PM2.5 Total Bio- CO2 NBio- CO2 Total CO2 CH4
Mitigated Construction On-Site
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10 Total Fugitive
PM2.5
Exhaust
PM2.5
11.2680
3.6200e-
003
0.0000 11.2680
Total 2.6200e-
003
0.0488 0.0874 1.3000e-004 2.1000e-
004
2.1000e-004 2.1000e-
004
2.1000e-004 0.0000
2.1000e-
004
2.1000e-004 0.0000 11.1776 11.17761.3000e-004 2.1000e-
004
2.1000e-004Off-Road 2.6200e-
003
0.0488 0.0874
Mitigated Construction Off-Site
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10 Total Fugitive
PM2.5
Exhaust
PM2.5
11.1776 11.1776 3.6200e-
003
0.0000
0.0000 0.0000 0.0000Hauling 0.0000 0.0000 0.0000
N2O CO2e
Category tons/yr MT/yr
PM2.5 Total Bio- CO2 NBio- CO2 Total CO2 CH4
0.0000 0.0000 0.0000
0.0000 0.0000 0.0000 0.0000 0.0000
0.0000 0.0000 0.0000
Vendor 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0 000 0.0000
0.0000 0.0000 0.0000 0.0000 0.00000.0000 0.0000
0.0000 0.0000 0.0000 0.0000 0.0000
0.0000 0.0000 0.0000
Total 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.00 00 0.0000
0.0000 0.0000 0.0000 0.0000 0.00000.0000 0.0000 0.0000 0.0000 0.0000Worker
3.5 Building Construction - 2024
Unmitigated Construction On-Site
CalEEMod Version: CalEEMod.2020.4.0 Page 1 of 1
Date: 8/25/2022 12:15 PM
2655 The Alameda, Santa Clara - Santa Clara County, Annual EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Not Applied N2O CO2e
Category tons/yr MT/yr
PM2.5 Total Bio- CO2 NBio- CO2 Total CO2 CH4ROG NOx CO SO2 Fugitive PM10
Exhaust
PM10
PM10 Total Fugitive
PM2.5
Exhaust
PM2.5
18.1064
5.7200e-
003
0.0000 18.1064
Total 0.0123 0.1219 0.1011 2.1000e-004 5.8200e-
003
5.8200e-003 5.3600e-
003
5.3600e-003 0.0000
5.3600e-
003
5.3600e-003 0.0000 17.9633 17.96332.1000e-004 5.8200e-
003
5.8200e-003Off-Road 0.0123 0.1219 0.1011
Unmitigated Construction Off-Site
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10 Total Fugitive
PM2.5
Exhaust
PM2.5
17.9633 17.9633 5.7200e-
003
0.0000
0.0000 0.0000 0.0000Hauling 0.0000 0.0000 0.0000
N2O CO2e
Category tons/yr MT/yr
PM2.5 Total Bio- CO2 NBio- CO2 Total CO2 CH4
0.0000 0.0000 0.0000
0.0000 0.0000 0.0000 0.0000 0.0000
0.0000 0.0000 0.0000
Vendor 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0 000 0.0000
0.0000 0.0000 0.0000 0.0000 0.00000.0000 0.0000
0.0000 0.0000 0.0000 0.0000 0.0000
0.0000 0.0000 0.0000
Total 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.00 00 0.0000
0.0000 0.0000 0.0000 0.0000 0.00000.0000 0.0000 0.0000 0.0000 0.0000Worker Mitigated Construction On-Site
CalEEMod Version: CalEEMod.2020.4.0 Page 1 of 1
Date: 8/25/2022 12:15 PM
2655 The Alameda, Santa Clara - Santa Clara County, Annual EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Not Applied N2O CO2e
Category tons/yr MT/yr
PM2.5 Total Bio- CO2 NBio- CO2 Total CO2 CH4ROG NOx CO SO2 Fugitive PM10
Exhaust
PM10
PM10 Total Fugitive
PM2.5
Exhaust
PM2.5
18.1064
5.7200e-
003
0.0000 18.1064
Total 3.8800e-
003
0.0707 0.1284 2.1000e-004 4.2000e-
004
4.2000e-004 4.2000e-
004
4.2000e-004 0.0000
4.2000e-
004
4.2000e-004 0.0000 17.9633 17.96332.1000e-004 4.2000e-
004
4.2000e-004Off-Road 3.8800e-
003
0.0707 0.1284
Mitigated Construction Off-Site
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10 Total Fugitive
PM2.5
Exhaust
PM2.5
17.9633 17.9633 5.7200e-
003
0.0000
0.0000 0.0000 0.0000Hauling 0.0000 0.0000 0.0000
N2O CO2e
Category tons/yr MT/yr
PM2.5 Total Bio- CO2 NBio- CO2 Total CO2 CH4
0.0000 0.0000 0.0000
0.0000 0.0000 0.0000 0.0000 0.0000
0.0000 0.0000 0.0000
Vendor 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0 000 0.0000
0.0000 0.0000 0.0000 0.0000 0.00000.0000 0.0000
0.0000 0.0000 0.0000 0.0000 0.0000
0.0000 0.0000 0.0000
Total 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.00 00 0.0000
0.0000 0.0000 0.0000 0.0000 0.00000.0000 0.0000 0.0000 0.0000 0.0000Worker N2O CO2ePM2.5 Total Bio- CO2 NBio- CO2 Total CO2 CH4
3.6 Architectural Coating - 2024
Unmitigated Construction On-Site
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10 Total Fugitive
PM2.5
Exhaust
PM2.5
CalEEMod Version: CalEEMod.2020.4.0 Page 1 of 1
Date: 8/25/2022 12:15 PM
2655 The Alameda, Santa Clara - Santa Clara County, Annual EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Not Applied
0.1645
Category tons/yr MT/yr
35.2519 35.2519 1.9800e-
003
0.0000 35.3016
0.0000 0.0000 0.0000
Off-Road 0.0250 0.1683 0.2499 4.1000e-004 8.4100e-
003
8.4100e-003 8.4100e-
003
8.4100e-003 0.0000
0.0000 0.0000 0.0000 0.0000 0.00000.0000 0.0000Archit. Coating
1.9800e-
003
0.0000 35.3016
Unmitigated Construction Off-Site
8.4100e-
003
8.4100e-003 0.0000 35.2519 35.25194.1000e-004 8.4100e-
003
8.4100e-003Total 0.1894 0.1683 0.2499
0.0000 0.0000 0.0000Hauling 0.0000 0.0000 0.0000
CH4 N2O CO2e
Category tons/yr MT/yr
Exhaust
PM2.5
PM2.5 Total Bio- CO2 NBio- CO2 Total CO2SO2 Fugitive
PM10
Exhaust
PM10
PM10 Total Fugitive
PM2.5
ROG NOx CO
0.0000 0.0000 0.0000
0.0000 0.0000 0.0000 0.0000 0.0000
0.0000 0.0000 0.0000
Vendor 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0 000 0.0000
0.0000 0.0000 0.0000 0.0000 0.00000.0000 0.0000
0.0000 0.0000 0.0000 0.0000 0.0000
0.0000 0.0000 0.0000
Total 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.00 00 0.0000
0.0000 0.0000 0.0000 0.0000 0.00000.0000 0.0000 0.0000 0.0000 0.0000Worker N2O CO2ePM2.5 Total Bio- CO2 NBio- CO2 Total CO2 CH4
Mitigated Construction On-Site
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10 Total Fugitive
PM2.5
Exhaust
PM2.5
CalEEMod Version: CalEEMod.2020.4.0 Page 1 of 1
Date: 8/25/2022 12:15 PM
2655 The Alameda, Santa Clara - Santa Clara County, Annual EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Not Applied
0.1645
Category tons/yr MT/yr
35.2519 35.2519 1.9800e-
003
0.0000 35.3015
0.0000 0.0000 0.0000
Off-Road 7.5200e-
003
0.1463 0.2530 4.1000e-004 5.5000e-
004
5.5000e-004 5.5000e-
004
5.5000e-004 0.0000
0.0000 0.0000 0.0000 0.0000 0.00000.0000 0.0000Archit. Coating
1.9800e-
003
0.0000 35.3015
Mitigated Construction Off-Site
5.5000e-
004
5.5000e-004 0.0000 35.2519 35.25194.1000e-004 5.5000e-
004
5.5000e-004Total 0.1720 0.1463 0.2530
0.0000 0.0000 0.0000Hauling 0.0000 0.0000 0.0000
CH4 N2O CO2e
Category tons/yr MT/yr
Exhaust
PM2.5
PM2.5 Total Bio- CO2 NBio- CO2 Total CO2SO2 Fugitive
PM10
Exhaust
PM10
PM10 Total Fugitive
PM2.5
ROG NOx CO
0.0000 0.0000 0.0000
0.0000 0.0000 0.0000 0.0000 0.0000
0.0000 0.0000 0.0000
Vendor 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0 000 0.0000
0.0000 0.0000 0.0000 0.0000 0.00000.0000 0.0000
0.0000 0.0000 0.0000 0.0000 0.0000
0.0000 0.0000 0.0000
Total 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.00 00 0.0000
0.0000 0.0000 0.0000 0.0000 0.00000.0000 0.0000 0.0000 0.0000 0.0000Worker N2O CO2ePM2.5 Total Bio- CO2 NBio- CO2 Total CO2 CH4
3.6 Architectural Coating - 2025
Unmitigated Construction On-Site
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10 Total Fugitive
PM2.5
Exhaust
PM2.5
CalEEMod Version: CalEEMod.2020.4.0 Page 1 of 1
Date: 8/25/2022 12:15 PM
2655 The Alameda, Santa Clara - Santa Clara County, Annual EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Not Applied
0.0438
Category tons/yr MT/yr
9.3790 9.3790 5.1000e-
004
0.0000 9.3917
0.0000 0.0000 0.0000
Off-Road 6.2800e-
003
0.0421 0.0665 1.1000e-004 1.8900e-
003
1.8900e-003 1.8900e-
003
1.8900e-003 0.0000
0.0000 0.0000 0.0000 0.0000 0.00000.0000 0.0000Archit. Coating
5.1000e-
004
0.0000 9.3917
Unmitigated Construction Off-Site
1.8900e-
003
1.8900e-003 0.0000 9.3790 9.37901.1000e-004 1.8900e-
003
1.8900e-003Total 0.0500 0.0421 0.0665
0.0000 0.0000 0.0000Hauling 0.0000 0.0000 0.0000
CH4 N2O CO2e
Category tons/yr MT/yr
Exhaust
PM2.5
PM2.5 Total Bio- CO2 NBio- CO2 Total CO2SO2 Fugitive
PM10
Exhaust
PM10
PM10 Total Fugitive
PM2.5
ROG NOx CO
0.0000 0.0000 0.0000
0.0000 0.0000 0.0000 0.0000 0.0000
0.0000 0.0000 0.0000
Vendor 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0 000 0.0000
0.0000 0.0000 0.0000 0.0000 0.00000.0000 0.0000
0.0000 0.0000 0.0000 0.0000 0.0000
0.0000 0.0000 0.0000
Total 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.00 00 0.0000
0.0000 0.0000 0.0000 0.0000 0.00000.0000 0.0000 0.0000 0.0000 0.0000Worker N2O CO2ePM2.5 Total Bio- CO2 NBio- CO2 Total CO2 CH4
Mitigated Construction On-Site
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10 Total Fugitive
PM2.5
Exhaust
PM2.5
CalEEMod Version: CalEEMod.2020.4.0 Page 1 of 1
Date: 8/25/2022 12:15 PM
2655 The Alameda, Santa Clara - Santa Clara County, Annual EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Not Applied
0.0438
Category tons/yr MT/yr
9.3789 9.3789 5.1000e-
004
0.0000 9.3917
0.0000 0.0000 0.0000
Off-Road 2.0000e-
003
0.0389 0.0673 1.1000e-004 1.5000e-
004
1.5000e-004 1.5000e-
004
1.5000e-004 0.0000
0.0000 0.0000 0.0000 0.0000 0.00000.0000 0.0000Archit. Coating
5.1000e-
004
0.0000 9.3917
Mitigated Construction Off-Site
1.5000e-
004
1.5000e-004 0.0000 9.3789 9.37891.1000e-004 1.5000e-
004
1.5000e-004Total 0.0458 0.0389 0.0673
0.0000 0.0000 0.0000Hauling 0.0000 0.0000 0.0000
CH4 N2O CO2e
Category tons/yr MT/yr
Exhaust
PM2.5
PM2.5 Total Bio- CO2 NBio- CO2 Total CO2SO2 Fugitive
PM10
Exhaust
PM10
PM10 Total Fugitive
PM2.5
ROG NOx CO
0.0000 0.0000 0.0000
0.0000 0.0000 0.0000 0.0000 0.0000
0.0000 0.0000 0.0000
Vendor 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0 000 0.0000
0.0000 0.0000 0.0000 0.0000 0.00000.0000 0.0000
0.0000 0.0000 0.0000 0.0000 0.0000
0.0000 0.0000 0.0000
Total 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.00 00 0.0000
0.0000 0.0000 0.0000 0.0000 0.00000.0000 0.0000 0.0000 0.0000 0.0000Worker N2O CO2ePM2.5 Total Bio- CO2 NBio- CO2 Total CO2 CH4
3.7 Paving - 2024
Unmitigated Construction On-Site
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10 Total Fugitive
PM2.5
Exhaust
PM2.5
CalEEMod Version: CalEEMod.2020.4.0 Page 1 of 1
Date: 8/25/2022 12:15 PM
2655 The Alameda, Santa Clara - Santa Clara County, Annual EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Not Applied
1.3600e-
003
0.0125 0.0192
Category tons/yr MT/yr
0.0000 0.0000 0.0000 0.0000 0.0000
6.5000e-
004
0.0000 2.5886
Paving 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000
5.5000e-
004
5.5000e-004 0.0000 2.5724 2.57243.0000e-005 5.9000e-
004
5.9000e-004Off-Road
6.5000e-
004
0.0000 2.5886
Unmitigated Construction Off-Site
5.5000e-
004
5.5000e-004 0.0000 2.5724 2.57243.0000e-005 5.9000e-
004
5.9000e-004Total 1.3600e-
003
0.0125 0.0192
0.0000 0.0000 0.0000Hauling 0.0000 0.0000 0.0000
CH4 N2O CO2e
Category tons/yr MT/yr
Exhaust
PM2.5
PM2.5 Total Bio- CO2 NBio- CO2 Total CO2SO2 Fugitive
PM10
Exhaust
PM10
PM10 Total Fugitive
PM2.5
ROG NOx CO
0.0000 0.0000 0.0000
0.0000 0.0000 0.0000 0.0000 0.0000
0.0000 0.0000 0.0000
Vendor 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0 000 0.0000
0.0000 0.0000 0.0000 0.0000 0.00000.0000 0.0000
0.0000 0.0000 0.0000 0.0000 0.0000
0.0000 0.0000 0.0000
Total 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.00 00 0.0000
0.0000 0.0000 0.0000 0.0000 0.00000.0000 0.0000 0.0000 0.0000 0.0000Worker N2O CO2ePM2.5 Total Bio- CO2 NBio- CO2 Total CO2 CH4
Mitigated Construction On-Site
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10 Total Fugitive
PM2.5
Exhaust
PM2.5
CalEEMod Version: CalEEMod.2020.4.0 Page 1 of 1
Date: 8/25/2022 12:15 PM
2655 The Alameda, Santa Clara - Santa Clara County, Annual EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Not Applied
5.4000e-
004
0.0123 0.0212
Category tons/yr MT/yr
0.0000 0.0000 0.0000 0.0000 0.0000
6.5000e-
004
0.0000 2.5886
Paving 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000
5.0000e-
005
5.0000e-005 0.0000 2.5724 2.57243.0000e-005 5.0000e-
005
5.0000e-005Off-Road
6.5000e-
004
0.0000 2.5886
Mitigated Construction Off-Site
5.0000e-
005
5.0000e-005 0.0000 2.5724 2.57243.0000e-005 5.0000e-
005
5.0000e-005Total 5.4000e-
004
0.0123 0.0212
CH4 N2O CO2e
Category tons/yr MT/yr
Exhaust
PM2.5
PM2.5 Total Bio- CO2 NBio- CO2 Total CO2SO2 Fugitive
PM10
Exhaust
PM10
PM10 Total Fugitive
PM2.5
ROG NOx CO
0.0000
0.0000 0.0000 0.0000
Vendor 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0 000 0.0000
0.0000 0.0000 0.0000 0.0000 0.00000.0000 0.0000 0.0000 0.0000 0.0000Hauling 0.0000 0.0000 0.0000
0.0000 0.0000 0.00000.0000 0.0000 0.0000 0.0000 0.0000Worker 0.0000 0.0000 0.0000
0.0000 0.0000 0.0000 0.0000
4.0 Operational Detail - Mobile
4.1 Mitigation Measures Mobile
0.0000 0.0000 0.0000 0.0000 0.0000
0.0000 0.0000 0.0000
Total 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.00 00 0.0000
0.0000 0.0000
CalEEMod Version: CalEEMod.2020.4.0 Page 1 of 1
Date: 8/25/2022 12:15 PM
2655 The Alameda, Santa Clara - Santa Clara County, Annual EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Not Applied ROG NOx CO SO2 Fugitive
PM10
CO2e
Category tons/yr MT/yr
Mitigated 0.1175 0.0784 0.7194 1.5600e-003 0.1460 1.1100e- 003
0.1471 0.0364 1.0300e-
003
0.0375
Bio- CO2 NBio- CO2 Total CO2 CH4 N2OExhaust
PM10
PM10 Total Fugitive
PM2.5
Exhaust
PM2.5
PM2.5 Total
8.3900e-
003
7.0200e-003 146.3101
4.2 Trip Summary Information
Average Daily Trip Rate Unmitigated Mitigated
146.3101
Unmitigated 0.1175 0.0784 0.7194 1.5600e-003 0.1460 1.1100e- 003
0.1471 0.0364 1.0300e-
003
0.0375 0.0000 144.0089 144.0089
0.0000 144.0089 144.0089 8.3900e-
003
7.0200e-003
Parking Lot 0.00 0.00 0.00
Enclosed Parking with Elevator 0.00 0.00 0.00
Annual VMT
Apartments Mid Rise 164.19 148.20 123.24 360,427 360,427 Land Use Weekday Saturday Sunday Annual VMT
H-S or C-C H-O or C-NW Primary Diverted Pass-byLand Use H-W or C-W H-S or C-C H-O or C-NW H-W or C-W
4.3 Trip Type Information
Miles Trip % Trip Purpose %
70,513
Total 214.19 195.63 146.29 430,940 430,940
Strip Mall 50.00 47.43 23.05 70,513
0.00 0.00 0 0 0Enclosed Parking with Elevator 9.50 7.30 7.30 0.00
15.00 54.00 86 11 3Apartments Mid Rise 10.80 4.80 5.70 31.00
4.4 Fleet Mix
Land Use LDA LDT1 LDT2
64.40 19.00 45 40 15Strip Mall 9.50 7.30 7.30 16.60
0.00 0.00 0 0 0Parking Lot 9.50 7.30 7.30 0.00
0.023276 0.005740 0.009425 0.007440 0.001057Apartments Mid Rise 0.528224 0.040364 0.230108 0.128589 OBUS UBUS MCY SBUS MHMDV LHD1 LHD2 MHD HHD
0.000413 0.022096 0.000684 0.002585
CalEEMod Version: CalEEMod.2020.4.0 Page 1 of 1
Date: 8/25/2022 12:15 PM
2655 The Alameda, Santa Clara - Santa Clara County, Annual EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Not Applied
0.000684 0.002585
Parking Lot 0.528224 0.040364 0.230108 0.128589 0.023276 0.005740 0.00 9425 0.007440 0.001057 0.000413 0.022096 0.000684 0.002585 Enclosed Parking with Elevator 0.528224 0.040364 0.230108 0.128589 0 .023276 0.005740 0.009425 0.007440 0.001057 0.000413 0.022096 Historical Energy Use: N
5.1 Mitigation Measures Energy
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10 Total Fugitive
PM2.5
Exhaust
PM2.5
0.000413 0.022096 0.000684 0.002585
5.0 Energy Detail
0.023276 0.005740 0.009425 0.007440 0.001057Strip Mall 0.528224 0.040364 0.230108 0.128589
0.0000 0.0000Electricity Mitigated
N2O CO2e
Category tons/yr MT/yr
PM2.5 Total Bio- CO2 NBio- CO2 Total CO2 CH4
0.0000 0.0000 0.0000
47.8873 47.8873 5.1300e-
003
6.2000e-004 48.2009
5.1300e-
003
6.2000e-004 48.2009
Electricity
Unmitigated
0.0000 0.0000 0.0000 0.0000 0.0000
0.0000 0.0000 0.0000 47.8873 47.8873
0.0000 0.0000 0.0000 0.0000 0.0000
0.0000 0.0000 0.0000
NaturalGas
Unmitigated
0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000
0.0000 0.0000 0.0000 0.0000 0.00000.0000 0.0000 0.0000NaturalGas Mitigated
CH4 N2O CO2eExhaust
PM2.5
PM2.5 Total Bio- CO2 NBio- CO2 Total CO2
5.2 Energy by Land Use - NaturalGas
Unmitigated
NaturalGa
s Use
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10 Total Fugitive
PM2.5
CalEEMod Version: CalEEMod.2020.4.0 Page 1 of 1
Date: 8/25/2022 12:15 PM
2655 The Alameda, Santa Clara - Santa Clara County, Annual EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Not Applied Land Use kBTU/yr tons/yr MT/yr
0.0000 0.0000 0.0000 0.0000
Enclosed Parking
with Elevator
0 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000
0.0000 0.0000 0.0000 0.00000.0000 0.0000 0.0000 0.0000Apartments Mid Rise
0 0.0000 0.0000
0.0000 0.0000 0.0000 0.0000 0.0000
0.0000 0.0000
Parking Lot 0 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0 000
0.0000 0.0000 0.0000 0.0000 0.0000
0.0000 0.0000 0.0000 0.0000
Total 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000
0.0000 0.0000 0.0000 0.00000.0000 0.0000 0.0000 0.0000Strip Mall 0 0.0000 0.0000 N2O CO2e
Land Use kBTU/yr tons/yr MT/yr
PM2.5 Total Bio- CO2 NBio- CO2 Total CO2 CH4
0.0000 0.0000
Mitigated
NaturalGa
s Use
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10 Total Fugitive
PM2.5
Exhaust
PM2.5
0.0000 0.0000 0.0000 0.0000 0.0000
0.0000 0.0000 0.0000 0.0000
Enclosed Parking
with Elevator
0 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000
0.0000 0.0000 0.0000 0.00000.0000 0.0000 0.0000 0.0000Apartments Mid Rise
0 0.0000 0.0000
0.0000 0.0000 0.0000
0.0000 0.0000
Parking Lot 0 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0 000
0.0000 0.0000 0.0000 0.0000 0.0000
0.0000 0.0000 0.0000 0.00000.0000 0.0000 0.0000 0.0000Strip Mall 0 0.0000 0.0000
0.0000 0.0000
0.0000 0.0000
5.3 Energy by Land Use - Electricity
Unmitigated
0.0000 0.0000 0.0000 0.0000 0.0000
0.0000 0.0000 0.0000 0.0000
Total 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000
CalEEMod Version: CalEEMod.2020.4.0 Page 1 of 1
Date: 8/25/2022 12:15 PM
2655 The Alameda, Santa Clara - Santa Clara County, Annual EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Not Applied Electricity
Use
Total CO2 CH4 N2O CO2e
1.4000e-004 10.8620
Parking Lot 1890 0.2640 3.0000e-005 0.0000 0.2658
Enclosed Parking
with Elevator
77248 10.7913 1.1600e-003
Land Use kWh/yr t
o
n
MT/yr
Apartments Mid
Rise
246592 34.4482 3.6900e-003 4.5000e-004 34.6738
Mitigated
Electricity
Use
Total CO2 CH4 N2O CO2e
3.0000e-005 2.3993
Total 47.8872 5.1400e-003 6.2000e-004 48.2009
Strip Mall 17063.2 2.3837 2.6000e-004
1.4000e-004 10.8620
Parking Lot 1890 0.2640 3.0000e-005 0.0000 0.2658
Enclosed Parking
with Elevator
77248 10.7913 1.1600e-003
Land Use kWh/yr t
o
n
MT/yr
Apartments Mid
Rise
246592 34.4482 3.6900e-003 4.5000e-004 34.6738
3.0000e-005 2.3993
Total 47.8872 5.1400e-003 6.2000e-004 48.2009
Strip Mall 17063.2 2.3837 2.6000e-004
CalEEMod Version: CalEEMod.2020.4.0 Page 1 of 1
Date: 8/25/2022 12:15 PM
2655 The Alameda, Santa Clara - Santa Clara County, Annual EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Not Applied
6.0 Area Detail
6.1 Mitigation Measures Area
ROG NOx CO SO2 Fugitive
PM10
CO2e
Category tons/yr MT/yr
Mitigated 0.1456 3.3400e-003 0.2896 2.0000e-005 1.6100e- 003
1.6100e-003 1.6100e-
003
1.6100e-003
Bio- CO2 NBio- CO2 Total CO2 CH4 N2OExhaust
PM10
PM10 Total Fugitive
PM2.5
Exhaust
PM2.5
PM2.5 Total
4.5000e-
004
0.0000 0.4850
6.2 Area by SubCategory
Unmitigated
0.4850
Unmitigated 0.1456 3.3400e-003 0.2896 2.0000e-005 1.6100e- 003
1.6100e-003 1.6100e-
003
1.6100e-003 0.0000 0.4736 0.4736
0.0000 0.4736 0.4736 4.5000e-
004
0.0000
0.0000 0.0000Architectural
Coating
0.0208
CH4 N2O CO2e
SubCategory tons/yr MT/yr
Exhaust
PM2.5
PM2.5 Total Bio- CO2 NBio- CO2 Total CO2SO2 Fugitive
PM10
Exhaust
PM10
PM10 Total Fugitive
PM2.5
ROG NOx CO
0.0000 0.0000 0.0000
0.0000 0.0000 0.0000 0.0000 0.0000
0.0000 0.0000 0.0000
Consumer
Products
0.1161 0.0000 0.0000 0.0000 0.0000 0.0000
0.0000 0.0000 0.0000 0.0000 0.0000
0.0000 0.0000 0.00000.0000 0.0000 0.0000 0.0000 0.00000.0000 0.0000 0.0000Hearth CalEEMod Version: CalEEMod.2020.4.0 Page 1 of 1
Date: 8/25/2022 12:15 PM
2655 The Alameda, Santa Clara - Santa Clara County, Annual EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Not Applied
0.4736 0.4736 4.5000e-
004
0.0000 0.4850Landscaping 8.7200e-
003
3.3400e-003 0.2896 2.0000e-005 1.6100e-
003
1.6100e-003 1.6100e-
003
1.6100e-003 0.0000
4.5000e-
004
0.0000 0.4850
Mitigated
1.6100e-
003
1.6100e-003 0.0000 0.4736 0.47362.0000e-005 1.6100e-
003
1.6100e-003Total 0.1456 3.3400e-003 0.2896
0.0000 0.0000Architectural
Coating
0.0208
CH4 N2O CO2e
SubCategory tons/yr MT/yr
Exhaust
PM2.5
PM2.5 Total Bio- CO2 NBio- CO2 Total CO2SO2 Fugitive
PM10
Exhaust
PM10
PM10 Total Fugitive
PM2.5
ROG NOx CO
0.0000 0.0000 0.0000
0.0000 0.0000 0.0000 0.0000 0.0000
0.0000 0.0000 0.0000
Consumer
Products
0.1161 0.0000 0.0000 0.0000 0.0000 0.0000
0.0000 0.0000 0.0000 0.0000 0.0000
0.4736 0.4736 4.5000e-
004
0.0000 0.4850
0.0000 0.0000 0.0000
Landscaping 8.7200e-
003
3.3400e-003 0.2896 2.0000e-005 1.6100e-
003
1.6100e-003 1.6100e-
003
1.6100e-003 0.0000
0.0000 0.0000 0.0000 0.0000 0.00000.0000 0.0000 0.0000Hearth
4.5000e-
004
0.0000 0.4850
7.0 Water Detail
7.1 Mitigation Measures Water
1.6100e-
003
1.6100e-003 0.0000 0.4736 0.47362.0000e-005 1.6100e-
003
1.6100e-003Total 0.1456 3.3400e-003 0.2896
CalEEMod Version: CalEEMod.2020.4.0 Page 1 of 1
Date: 8/25/2022 12:15 PM
2655 The Alameda, Santa Clara - Santa Clara County, Annual EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Not Applied
4.4719
7.2 Water by Land Use
Unmitigated
Indoor/Out
door Use
Total CO2 CH4 N2O CO2e
Unmitigated 3.7638 3.5400e-003 2.0800e-
003
CO2e
Category t
o
n
MT/yr
Mitigated 3.7638 3.5400e-003 2.0800e-
003
4.4719
Total CO2 CH4 N2O
0.0000 0.0000
Parking Lot 0 / 0 0.0000 0.0000 0.0000 0.0000
Enclosed Parking
with Elevator
0 / 0 0.0000 0.0000
Land Use Mgal t
o
n
MT/yr
Apartments Mid
Rise
2.54101 /
1.60194
3.6030 3.3800e-003 1.9900e-003 4.2807
Mitigated
9.0000e-005 0.1912
Total 3.7638 3.5300e-003 2.0800e-003 4.4719
Strip Mall 0.114072 /
0.0699149
0.1608 1.5000e-004
CalEEMod Version: CalEEMod.2020.4.0 Page 1 of 1
Date: 8/25/2022 12:15 PM
2655 The Alameda, Santa Clara - Santa Clara County, Annual EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Not Applied Indoor/Out
door Use
Total CO2 CH4 N2O CO2e
0.0000 0.0000
Parking Lot 0 / 0 0.0000 0.0000 0.0000 0.0000
Enclosed Parking
with Elevator
0 / 0 0.0000 0.0000
Land Use Mgal t
o
n
MT/yr
Apartments Mid
Rise
2.54101 /
1.60194
3.6030 3.3800e-003 1.9900e-003 4.2807
8.0 Waste Detail
8.1 Mitigation Measures Waste
Category/Year
Total CO2 CH4 N2O CO2e
9.0000e-005 0.1912
Total 3.7638 3.5300e-003 2.0800e-003 4.4719
Strip Mall 0.114072 /
0.0699149
0.1608 1.5000e-004
9.8368
8.2 Waste by Land Use
Unmitigated 3.9705 0.2347 0.0000
t
o
n
MT/yr
Mitigated 3.9705 0.2347 0.0000 9.8368
CalEEMod Version: CalEEMod.2020.4.0 Page 1 of 1
Date: 8/25/2022 12:15 PM
2655 The Alameda, Santa Clara - Santa Clara County, Annual EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Not Applied Unmitigated
Waste
Disposed
Total CO2 CH4 N2O CO2e
0.0000 0.0000
Parking Lot 0 0.0000 0.0000 0.0000 0.0000
Enclosed Parking
with Elevator
0 0.0000 0.0000
Land Use tons t
o
n
MT/yr
Apartments Mid
Rise
17.94 3.6417 0.2152 0.0000 9.0221
Mitigated
Waste
Disposed
Total CO2 CH4 N2O CO2e
0.0000 0.8147
Total 3.9705 0.2347 0.0000 9.8368
Strip Mall 1.62 0.3289 0.0194
0.0000 0.0000
Parking Lot 0 0.0000 0.0000 0.0000 0.0000
Enclosed Parking
with Elevator
0 0.0000 0.0000
Land Use tons t
o
n
MT/yr
Apartments Mid
Rise
17.94 3.6417 0.2152 0.0000 9.0221
0.0000 0.8147Strip Mall 1.62 0.3289 0.0194
CalEEMod Version: CalEEMod.2020.4.0 Page 1 of 1
Date: 8/25/2022 12:15 PM
2655 The Alameda, Santa Clara - Santa Clara County, Annual EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Not Applied Horse Power Load Factor Fuel Type
10.0 Stationary Equipment
Fire Pumps and Emergency Generators
9.0 Operational Offroad
Equipment Type Number Hours/Day Days/Year
Total 3.9705 0.2347 0.0000 9.8368
User Defined Equipment
Equipment Type Number
11.0 Vegetation
Load Factor Fuel Type
Boilers
Equipment Type Number Heat Input/Day Heat Input/Year Boiler Rating F uel Type Equipment Type Number Hours/Day Hours/Year Horse Power
Attachment 3: EMFAC2021 Calculations
Pollutants ROG NOx CO SO2
Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total NBio‐ CO2 CH4 N2O CO2e
YEAR
2023 0.0033 0.0241 0.0410 0.0002 0.0098 0.0017 0.0115 0.0015 0.0007 0.0022 20. 7055 0.0013 0.0024 21.4685 2024‐2025 0.0108 0.0802 0.1339 0.0007 0.0342 0.0059 0.0401 0.0051 0.0025 0.0076 70. 7201 0.0044 0.0084 73.3212 2023 0.0028 0.0053 0.0127 0.00001 0.0004 0.0001 0.0005 0.0001 0.00003 0.0001 1 .3484 0.0003 0.0002 1.4212 2024‐2025 0.0091 0.0181 0.0420 0.0000 0.0015 0.0002 0.0017 0.0002 0.0001 0.0003 4.5974 0.0010 0.0007 4.8442 Tons
Summary of Construction Traffic Emissions (EMFAC2021)
Metric Tons
Criteria Pollutants
Toxic Air Contaminants (0.5 Mile Trip Length)
Phase
CalEEMod
WORKER
TRIPS
CalEEMod
VENDOR
TRIPS
Total
Worker
Trips
Total
Vendor
Trips
CalEEMod
HAULING
TRIPS
Worker Trip
Length
Vendor Trip
Length
Hauling Trip
Length
Worker Vehicle
Class
Vendor Vehicle
Class
Hauling Vehicle
Class
Worker
VMT
Vendor
VMT
Hauling
VMT
Site Preparation 30 30 0 10.8 7.3 20 LD_Mix HDT_Mix HHDT 32.4 0 0 Grading 80 352 0 925 10.8 7.3 20 LD_Mix HDT_Mix HHDT 3801.6 0 18500 Trenching 80 992 0 430 10.8 7.3 20 LD_Mix HDT_Mix HHDT 10713.6 0 8600 Building Construction 37 8 6031 1304 112 10.8 7.3 20 LD_Mix HDT_Mix HHDT 65134.8 9519.2 2240 Architectural Coating 70 966 0 0 10.8 7.3 7.3 LD_Mix HDT_Mix HHDT 10432.8 0 0 Paving 15 0 420 0 8 10.8 7.3 20 LD_Mix HDT_Mix HHDT 4536 0 160 2023 9/6/23 12/31/23 117 84
2024/2025 1/1/24 2/10/25 407 291
524 375 Total Workdays
Phase Start Date End Date Days/Week Workdays
Site Preparation 9/6/2023 9/6/2023 5 1
Grading 9/8/2023 11/8/2023 5 44
Trenching 11/9/2023 4/30/2024 5 124
Building Construction 5/10/2024 12/24/2024 5 163
Architectural Coating 8/1/2024 2/10/2025 5 138
Paving 11/1/2024 12/10/2024 5 28
Number of Days Per Year
CalEEMod Construction Inputs
Mix % Adj
ROG_DIURN ROG_HTSK ROG_IDLEX ROG_RESTL ROG_RUNEX ROG_RUNLS ROG_STREX N OX_IDLEX NOX_RUNEX NOX_STREX CO_IDLEX CO_RUNEX CO_STREX SO2_IDLEX SO2_ RUNEX SO2_STREX Road Dust PM10
PM10_PM
BW
PM10_PM
TW PM10_IDL
EX
PM10_RU
NEX PM10_STREX Road Dust
PM25
PM25_PM
BW
PM25_PM
TW
PM25_IDL
EX
PM25_RUN
EX
PM25_STR
EX
CO2_NBIO
_IDLEX
CO2_NBIO
_RUNEX
CO2_NBIO
_STREX
CH4_IDLE
X CH4_RUNEX CH4_STREX
N2O_IDLEXN2O_RUNEX N2O_STREX
Category 19 22 23 8 9 10
Hauling HHDT 100.0 1 0.000287604 8.55424E‐05 0.332404817 0 0.01953334 0. 00077057 5.28839E‐07 4.1629787 1.930480649 2.692504026 5.211988 0.794 81483 0.000555 0.00746083 0.01488345 2.65981E‐07 0.081444 0.035123 0.0 02283 0.025833 9.98684E‐07 0.028506 0.008781 0.002179 0.0247116 9.183E ‐07 850.51039 1643.0479 0.0269048 0.235881 0.125647179 9.74075E‐08 0.1 36898 0.262148415 2.46823E‐05 MHD 0.0 0 0.028424515 0.006961572 0.027529656 0 0.04434978 0.05660825 0. 052337336 0.9240436 1.219274528 1.396113281 0.673566 0.40377012 1.152 494 0.00150213 0.011767743 8.73526E‐05 0.045469 0.012 0.002542 0.01493 1 0.000112942 0.015914 0.003 0.002431 0.0142769 0.0001038 161.33734 123 9.5984 8.8359741 0.012943 0.009906777 0.009245497 0.024829 0.15988510 9 0.006096523 Vendor HHDT 50.0 0.5 0.000143802 4.27712E‐05 0.166202408 0 0.00976667 0. 00038529 2.6442E‐07 2.0814893 0.965240325 1.346252013 2.605994 0.3974 0742 0.000277 0.00373041 0.007441725 1.32991E‐07 0.040722 0.017561 0.0 01142 0.012916 4.99342E‐07 0.014253 0.00439 0.001089 0.0123558 4.591E‐ 07 425.2552 821.52395 0.0134524 0.11794 0.06282359 4.87037E‐08 0.06844 9 0.131074208 1.23411E‐05 MHD 50.0 0.5 0.014212257 0.003480786 0.013764828 0 0.02217489 0.0283041 3 0.026168668 0.4620218 0.609637264 0.698056641 0.336783 0.20188506 0. 576247 0.00075106 0.005883871 4.36763E‐05 0.022735 0.006 0.001271 0.00 7465 5.64711E‐05 0.007957 0.0015 0.001216 0.0071384 5.192E‐05 80.66867 619.79918 4.417987 0.006471 0.004953388 0.004622749 0.012414 0.079942 554 0.003048262 1 0.01435606 0.003523557 0.179967236 0 0.03194156 0.02868941 0.0261689 32 2.5435111 1.574877589 2.044308654 2.942777 0.59929248 0.576524 0.00 448148 0.013325596 4.38093E‐05 0.063457 0.023561 0.002413 0.020382 5.6 9705E‐05 0.02221 0.00589 0.002305 0.0194942 5.238E‐05 505.92387 1441.3 231 4.4314394 0.124412 0.067776978 0.004622797 0.080863 0.211016762 0. 003060603 Worker LDA 50.0 0.5 0.143306127 0.042683769 0 0 0.0045285 0.10768412 0.15 9592017 0 0.021192179 0.122461753 0 0.35031163 1.546631 0 0.001247244 0. 00032278 0.0036 0.004 0 0.000614 0.000990927 0.00126 0.001 0 0.0005655 0. 0009111 0 126.17319 32.650143 0 0.001154545 0.034539145 0 0.00224937 0.0 15441065 LDT1 25.0 0.25 0.156677436 0.04332923 0 0 0.00778025 0.12516577 0.145126 689 0 0.035722679 0.100614187 0 0.38639467 1.408382 0 0.000818289 0.0002 17331 0.002307 0.002 0 0.000514 0.000767762 0.000807 0.0005 0 0.0004735 0 .000706 0 82.773349 21.983712 0 0.00173807 0.028010471 0 0.00255413 0.00 9913954 LDT2 25.0 0.25 0.074138692 0.021036563 0 0 0.00307324 0.05534742 0.10156 9939 0 0.019062039 0.088569484 0 0.22137906 0.96209 0 0.000853405 0.0002 19425 0.002219 0.002 0 0.000345 0.000540097 0.000777 0.0005 0 0.0003173 0 .0004966 0 86.33608 22.19552 0 0.000769908 0.021709383 0 0.001616766 0.0 09562758 1 0.374122256 0.107049562 0 0 0.015382 0.28819731 0.406288645 0 0.075976 897 0.311645425 0 0.95808537 3.917103 0 0.002918938 0.000759537 0.00812 6 0.008 0 0.001473 0.002298785 0.002844 0.002 0 0.0013563 0.0021137 0 295. 28262 76.829375 0 0.003662524 0.084258998 0 0.006420266 0.0349177770.04499
0.299 0.04499
0.299
0.299 0.04499
Mix % Adj
ROG_DIURN ROG_HTSK ROG_IDLEX ROG_RESTL ROG_RUNEX ROG_RUNLS ROG_STREX N OX_IDLEX NOX_RUNEX NOX_STREX CO_IDLEX CO_RUNEX CO_STREX SO2_IDLEX SO2_ RUNEX SO2_STREX Road Dust PM10
PM10_PM
BW
PM10_PM
TW PM10_IDL
EX
PM10_RU
NEX PM10_STREX Road Dust
PM25
PM25_PM
BW
PM25_PM
TW
PM25_IDL
EX
PM25_RUN
EX
PM25_STR
EX
CO2_NBIO
_IDLEX
CO2_NBIO
_RUNEX
CO2_NBIO
_STREX
CH4_IDLE
X CH4_RUNEX CH4_STREX
N2O_IDLEXN2O_RUNEX N2O_STREX
Category 19 22 23 8 9 10
Hauling HHDT 100.0 1 0.000195977 5.82846E‐05 0.329789936 0 0.01860554 0. 00052501 4.36152E‐07 4.075118 1.850604526 2.731408381 5.19556 0.77488 683 0.000626 0.00728035 0.014635772 1.93499E‐07 0.081298 0.035125 0.00 2182 0.025474 6.09682E‐07 0.028454 0.008781 0.002082 0.0243688 5.606E‐ 07 832.31669 1617.1297 0.019573 0.232934 0.121678903 8.02769E‐08 0.134 072 0.258076714 1.94763E‐05 MHD 0.0 0 0.025794994 0.006259754 0.026359118 0 0.03811329 0.05096401 0. 04894298 0.8928585 1.112921974 1.40789614 0.671381 0.34617278 1.07433 0.00148998 0.011664295 8.43209E‐05 0.045399 0.012 0.002128 0.012985 0. 000106814 0.01589 0.003 0.002035 0.0124151 9.821E‐05 160.25985 1229.18 06 8.5293121 0.013383 0.009658327 0.008772715 0.024689 0.158249654 0.0 06031915 Vendor HHDT 50.0 0.5 9.79886E‐05 2.91423E‐05 0.164894968 0 0.00930277 0. 0002625 2.18076E‐07 2.037559 0.925302263 1.36570419 2.59778 0.3874434 1 0.000313 0.00364017 0.007317886 9.67497E‐08 0.040649 0.017563 0.0010 91 0.012737 3.04841E‐07 0.014227 0.004391 0.001041 0.0121844 2.803E‐07 416.15835 808.56485 0.0097865 0.116467 0.060839451 4.01385E‐08 0.0670 36 0.129038357 9.73817E‐06 MHD 50.0 0.5 0.012897497 0.003129877 0.013179559 0 0.01905664 0.0254820 1 0.02447149 0.4464293 0.556460987 0.70394807 0.335691 0.17308639 0.53 7165 0.00074499 0.005832147 4.21605E‐05 0.0227 0.006 0.001064 0.006492 5.3407E‐05 0.007945 0.0015 0.001018 0.0062075 4.911E‐05 80.129924 614. 5903 4.2646561 0.006691 0.004829164 0.004386358 0.012344 0.079124827 0 .003015958 1 0.012995486 0.003159019 0.178074527 0 0.02835941 0.02574451 0.024471 708 2.4839883 1.48176325 2.06965226 2.933471 0.5605298 0.537478 0.0043 8516 0.013150033 4.22572E‐05 0.063348 0.023563 0.002155 0.01923 5.3711 9E‐05 0.022172 0.005891 0.002059 0.0183919 4.939E‐05 496.28827 1423.15 52 4.2744426 0.123158 0.065668615 0.004386398 0.07938 0.208163184 0.00 3025696 Worker LDA 50.0 0.5 0.136796864 0.040510207 0 0 0.00394285 0.10236849 0.1 47535756 0 0.018684555 0.115476587 0 0.32486778 1.445873 0 0.001211349 0 .000313927 0.003584 0.004 0 0.000585 0.000954881 0.001254 0.001 0 0.0005 39 0.000878 0 122.54122 31.754603 0 0.001026569 0.03235985 0 0.002080964 0.014940319 LDT1 25.0 0.25 0.148814258 0.041105424 0 0 0.00690435 0.11745495 0.13411 6008 0 0.0319581 0.094816504 0 0.35468197 1.306204 0 0.000804162 0.00021 249 0.002306 0.002 0 0.000482 0.00072446 0.000807 0.0005 0 0.0004435 0.00 06661 0 81.34419 21.494004 0 0.001555571 0.026204278 0 0.002343639 0.009 623613 LDT2 25.0 0.25 0.072043204 0.020150051 0 0 0.00277508 0.05358915 0.09479 5741 0 0.017007912 0.082407943 0 0.2073341 0.905899 0 0.000831592 0.0002 13499 0.002217 0.002 0 0.000333 0.000526973 0.000776 0.0005 0 0.0003065 0 .0004845 0 84.129497 21.596069 0 0.000704556 0.020482149 0 0.001504103 0 .009197602 1 0.357654326 0.101765681 0 0 0.01362228 0.2734126 0.376447505 0 0.06765 0567 0.292701033 0 0.88688386 3.657977 0 0.002847102 0.000739916 0.0081 07 0.008 0 0.001401 0.002206314 0.002837 0.002 0 0.001289 0.0020286 0 288. 01491 74.844675 0 0.003286696 0.079046277 0 0.005928705 0.0337615350.04499
0.299 0.04499
0.299
0.299 0.04499
Year 2025
Season EmissionType LDA LDT1 LDT2 MDV LHD1 LHD2 MHD HHD OBUS UBUS MCY SBUS MH A CH4_IDLEX 0000 0.005194 0.003023 0.013842 0.229861003 0.007514 0 0 0.076044 0 A CH4_RUNEX 0.001841 0.005577 0.002592 0.003307 0.007222 0.006455 0.009536 0.11713 2109 0.009593 0.497756349 0.158292 0.090769 0.011159 A CH4_STREX 0.060617 0.097956 0.077312 0.090898 0.021636 0.011648 0.008314 7.74759 E‐08 0.016852 0.003733046 0.177199 0.004898 0.025922 A CO_IDLEX 0000 0.195049 0.141036 0.668176 5.176290252 0.524506 0 0 1.692209 0 A CO_RUNEX 0.606604 1.307107 0.781421 0.865797 0.821777 0.532869 0.296939 0.75653 5609 0.44406 5.878094388 12.31202 0.85843 1.105311 A CO_STREX 2.711494 4.855262 3.417927 3.621729 2.164208 1.195973 1.000247 0.00068 4691 1.872658 0.515229574 7.965438 0.66885 2.373596 A CO2_NBIO_IDLEX 0000 8.602925 13.6884 158.593 813.9732577 87.04447 0 0 189.0522 0 A CO2_NBIO_RUNEX 237.6743 319.1813 327.6236 394.2305 764.972 810.9955 1213.655 1586.833 625 1366.1 1082.148951 187.2679 1017.838 1680.132 A CO2_NBIO_STREX 61.73081 84.00027 84.00689 100.2571 17.59535 9.640849 8.205073 0.01711 4195 14.85767 3.177121883 47.30784 3.779827 22.06858 A NOX_IDLEX 0000 0.046413 0.089605 0.847928 3.965211308 0.364367 0 0 1.342517 0 A NOX_RUNEX 0.033383 0.114688 0.061427 0.085138 0.585978 0.806102 1.006394 1.77405 7666 0.968278 0.301158242 0.557882 2.407715 1.487818 A NOX_STREX 0.218516 0.357478 0.309231 0.377914 0.420652 0.228874 1.403485 2.75117 3324 0.987981 0.039008099 0.129146 0.492123 0.298831 A PM10_IDLEX 0000 0.000685 0.001389 0.001762 0.002096665 0.000404 0 0 0.001209 0 A PM10_PMBW 0.007137 0.009219 0.00886 0.008972 0.077556 0.090487 0.04526 0.0812224 71 0.04982 0.123663808 0.012 0.044786 0.044946 A PM10_PMTW 0.008 0.008 0.008 0.008 0.00942 0.010665 0.012 0.035128275 0.012 0.04252 1858 0.004 0.010572 0.013235 A PM10_RUNEX 0.00112 0.001813 0.001292 0.00131 0.01302 0.021567 0.011186 0.02503134 1 0.015263 0.005684616 0.001925 0.012423 0.028992 A PM10_STREX 0.001849 0.00275 0.002061 0.002069 0.000206 9.12E‐05 0.000101 5.20395E ‐07 0.000131 1.2108E‐05 0.003464 4.08E‐05 0.000296 A PM25_IDLEX 0000 0.000656 0.001329 0.001685 0.001999711 0.000387 0 0 0.001155 0 A PM25_PMBW 0.002498 0.003227 0.003101 0.00314 0.027145 0.03167 0.015841 0.0284278 65 0.017437 0.043282333 0.0042 0.015675 0.015731 A PM25_PMTW 0.002 0.002 0.002 0.002 0.002355 0.002666 0.003 0.008782069 0.003 0.0106 30465 0.001 0.002643 0.003309 A PM25_RUNEX 0.001031 0.001669 0.001189 0.001207 0.012419 0.020616 0.010694 0.02394 4936 0.014593 0.005434911 0.001799 0.01187 0.027693 A PM25_STREX 0.0017 0.002528 0.001895 0.001902 0.000189 8.39E‐05 9.28E‐05 4.78484E‐ 07 0.000121 1.11329E‐05 0.003253 3.76E‐05 0.000272 A ROG_DIURN 0.264632 0.562584 0.283569 0.336782 0.120201 0.063181 0.023118 0.00016 1301 0.068202 0.010220489 3.860886 0.029457 30.55965 A ROG_HTSK 0.077597 0.155938 0.078131 0.089235 0.030304 0.015991 0.005603 4.7964E ‐05 0.016021 0.003785535 3.558651 0.007775 7.988502 A ROG_IDLEX 0000 0.021187 0.015503 0.025251 0.32711902 0.04025 0 0 0.185349 0 A ROG_RESTL 0000000 00 0000
A ROG_RUNEX 0.006942 0.024558 0.010089 0.013778 0.079612 0.109106 0.032483 0.01779 9596 0.044456 0.059943987 1.024683 0.053481 0.077128 A ROG_RUNLS 0.197921 0.439329 0.211003 0.255197 0.16959 0.087065 0.045291 0.000432 041 0.075038 0.007986552 3.760078 0.019152 0.188623 A ROG_STREX 0.273326 0.495732 0.354505 0.447416 0.106693 0.056928 0.045776 4.20633 E‐07 0.089311 0.013239776 1.305157 0.027862 0.108247 A SO2_IDLEX 0000 8.37E‐05 0.000131 0.001472 0.007098942 0.000823 0 0 0.001718 0 A SO2_RUNEX 0.002349 0.003155 0.003238 0.003895 0.007471 0.007812 0.011512 0.01434 8163 0.013043 0.00885381 0.001851 0.009458 0.016473 A SO2_STREX 0.00061 0.00083 0.00083 0.000991 0.000174 9.53E‐05 8.11E‐05 1.69191E‐0 7 0.000147 3.14091E‐05 0.000468 3.74E‐05 0.000218 A TOG_DIURN 0.264632 0.562584 0.283569 0.336782 0.120201 0.063181 0.023118 0.00016 1301 0.068202 0.010220489 0.08531 0.029457 30.55965 A TOG_HTSK 0.077597 0.155938 0.078131 0.089235 0.030304 0.015991 0.005603 4.7964E ‐05 0.016021 0.003785535 3.558651 0.007775 7.988502 A TOG_IDLEX 0000 0.03005 0.020889 0.042478 0.588143126 0.05333 0 0 0.302207 0 A TOG_RESTL 0000000 00 0000
A TOG_RUNEX 0.010114 0.035818 0.014707 0.020053 0.097862 0.126808 0.046457 0.13721 3337 0.060464 0.565677917 1.236542 0.152507 0.100988 A TOG_RUNLS 0.197921 0.439329 0.211003 0.255197 0.16959 0.087065 0.045291 0.000432 041 0.075038 0.007986552 3.760078 0.019152 0.188623 A TOG_STREX 0.299257 0.542764 0.388138 0.489864 0.116815 0.062329 0.050119 4.6054E ‐07 0.097784 0.014495888 1.419098 0.030505 0.118517 A N2O_IDLEX 0000 0.000637 0.00168 0.024457 0.131219379 0.012456 0 0 0.024955 0 A N2O_RUNEX 0.003885 0.008627 0.005647 0.007583 0.040583 0.081593 0.156 018 0.253304032 0.157183 0.165902975 0.038984 0.126174 0.069141 A N2O_STREX 0.028873 0.037292 0.035503 0.037751 0.034174 0.018376 0.005 858 1.42154E‐05 0.01459 0.006142466 0.007691 0.004354 0.031786 CalEEMod EMFAC2021 Emission Factors Input
Year 2025
FleetMixLandUseSubType LDA LDT1 LDT2 MDV LHD1 LHD2 MHD HHD OBUS UBUS MCY SB US MH Apartments Mid Rise 0.528224 0.040364 0.230108 0.128589 0.023276 0.00574 0.009425 0.00744 0 .001057 0.000413 0.022096 0.000684 0.002585 Enclosed Parking with
Elevator 0.528224 0.040364 0.230108 0.128589 0.023276 0.00574 0.009425 0.00744 0 .001057 0.000413 0.022096 0.000684 0.002585 Parking Lot 0.528224 0.040364 0.230108 0.128589 0.023276 0.00574 0.009425 0.00744 0 .001057 0.000413 0.022096 0.000684 0.002585 Strip Mall 0.528224 0.040364 0.230108 0.128589 0.023276 0.00574 0.009425 0.00744 0 .001057 0.000413 0.022096 0.000684 0.002585 CalEEMod EMFAC2021 Fleet Mix Input
Adjustment
Factors
Vehicle
Category Fuel Population Pop Fract VMT (miles/day) VMT Fract Trips/da y Trip Fract HHDT GAS 2.33035896 1.70966E‐05 124.9448223 0.0001166 46.62582199 0.00 0342 HHDT DSL 8692.57496 0.06377287 1008963.948 0.9416827 127877.0897 0.938 167 HHDT ELEC 63.3712014 0.000464921 6579.674935 0.0061409 825.9971986 0.0 0606 HHDT NG 832.40502 0.00610692 55779.3819 0.0520598 7555.504424 0.055431 9590.68154 1071447.949 136305.2172
LDA GAS 598860.284 0.189163833 22133914.69 0.8620184 2780384.029 0.878 248 LDA DSL 1620.03991 0.000511727 46912.85411 0.001827 6871.193241 0.0021 7 LDA ELEC 61443.1924 0.019408249 2670451.983 0.1040023 299852.6978 0.09 4715 LDA PIH 19037.6636 0.006013485 825567.7143 0.0321522 78720.73884 0.024 866 680961.18 25676847.24 3165828.659
LDT1 GAS 51680.8552 0.222992328 1664705.874 0.9915742 230185.983 0.993 205 LDT1 DSL 21.282725 9.18306E‐05 302.825779 0.0001804 59.13231308 0.0002 55 LDT1 ELEC 234.457824 0.001011638 9323.703781 0.0055536 1109.79593 0.00 4789 LDT1 PIH 98.1319848 0.000423419 4519.182281 0.0026918 405.7757571 0.00 1751 52034.7277 1678851.586 231760.687
LDT2 GAS 290874.748 0.209748755 10447705.78 0.9789509 1360240.873 0.98 0865 LDT2 DSL 1049.95238 0.000757117 38652.33695 0.0036217 4980.340082 0.00 3591 LDT2 ELEC 2157.05904 0.001555448 73663.77305 0.0069023 10962.38395 0.0 07905 LDT2 PIH 2561.88514 0.001847366 112327.2154 0.0105251 10593.39505 0.00 7639 296643.645 10672349.11 1386776.992
LHDT1 GAS 19422.4639 0.045941069 728336.977 0.6336476 289365.7727 0.68 4453 LHDT1 DSL 10387.1028 0.024569211 408019.3319 0.3549737 130656.6864 0.3 0905 LHDT1 ELEC 196.401964 0.000464561 13079.06139 0.0113787 2746.629156 0. 006497 30005.9687 0.070974841 1149435.37 422769.0882
LHDT2 GAS 2512.65228 0.025565973 91345.05406 0.3225651 37434.7751 0.38 0895 LHDT2 DSL 4837.2356 0.049218364 188645.0475 0.6661587 60846.33861 0.61 9105 LHDT2 ELEC 50.4620201 0.000513446 3193.250687 0.0112763 669.1749743 0. 006809 7400.3499 0.075297782 283183.3523 98281.11371
MCY GAS 28484.893 0.022095845 166414.5147 1 56969.78604 1 MDV GAS 159532.218 0.207432201 5551044.411 0.9605893 739781.3765 0.961 903 MDV DSL 2421.36412 0.003148385 85326.79887 0.0147655 11351.14178 0.014 759 MDV ELEC 2274.54722 0.002957486 77934.95958 0.0134864 11571.05737 0.01 5045 MDV PIH 1542.36579 0.002005465 64484.39206 0.0111588 6377.682532 0.008 293 165770.495 5778790.561 769081.2582
MH GAS 2337.87649 7.013583236 21506.19156 0.6912933 233.8811638 0.7016 39 MH DSL 994.543666 2.983611331 9603.892712 0.3087067 99.45436656 0.2983 61 3332.42015 31110.08427 333.3355304
MHDT GAS 1412.26257 0.009037553 72039.87357 0.1394582 28256.54946 0.18 0823 MHDT DSL 10548.0591 0.067500648 435100.6189 0.8422883 125915.2277 0.80 5775 MHDT ELEC 90.8085123 0.000581115 4838.905804 0.0093674 1182.343378 0.0 07566 MHDT NG 98.9062774 0.000632935 4590.306874 0.0088861 911.9208312 0.005 836 12150.0365 516569.7051 156266.0414
OBUS GAS 430.702276 0.023671729 18962.49127 0.2311741 8617.491144 0.47 3624 OBUS DSL 921.411582 0.050641491 62304.88754 0.7595666 9451.527202 0.51 9463 OBUS ELEC 2.67203053 0.000146857 221.7710452 0.0027036 53.46198693 0.0 02938 OBUS NG 8.1253065 0.000446573 537.746753 0.0065557 72.31522781 0.00397 5 1362.9112 82026.89662 18194.79556
SBUS GAS 178.243554 0.016385172 8812.851183 0.3543672 712.9742161 0.06 5541 SBUS DSL 673.204793 0.061884852 15283.75186 0.6145639 9748.005403 0.89 6093 SBUS ELEC 4.48116849 0.000411935 145.0761128 0.0058336 51.24766317 0.0 04711 SBUS NG 25.2843935 0.002324287 627.585971 0.0252354 366.1180183 0.0336 56 881.213909 24869.26513 10878.3453
UBUS GAS 46.2191762 0.021676301 4826.657731 0.0818022 184.8767049 0.08 6705 UBUS DSL 405.367492 0.190113029 44987.36567 0.7624463 1621.46997 0.760 452 UBUS ELEC 23.3120232 0.100202165 2427.539875 0.3589751 93.248093 0.400 809 UBUS NG 58.1624738 0.02727758 6762.418158 0.1146095 232.6498951 0.1091 1 533.061166 59003.98143 2132.244663
Source: EMFAC2021 (v1.0.2) Emission Rates
Region Type: County
Region: Santa Clara
Calendar Year: 2023
Season: Annual
Vehicle Classification: EMFAC2007 Categories
Units: miles/day for CVMT and EVMT, trips/day for Trips, g/mile for RUNEX, PMBW and PMTW, g/trip for STREX, HOTSOAK and RUNLOSS, g/vehicle/day for IDLEX and DIURN. PHEV calculated based on total VMT.
Region Calendar Y Vehicle Ca
tModel Yea Speed Fuel Population Total VMT CVMT EVMT Trips NOx_RUN ENOx_IDLEXNOx_STREXPM2.5_RU PM2.5_IDL PM2.5_STRPM2.5_PMPM2.5_PMPM10_RUNPM10_IDLEPM10_STR PM10_PMTPM10_PMBCO2_RUNECO2_IDLEXCO2_STREXCH4_RUNE CH4_IDLEX CH4_STREXN2O_RUNEN2O_IDLEXN2O_STREXROG_RUNEROG_IDLEXROG_STREXROG_HOTSROG_RUNLROG_DIUR TOG_RUNETOG_IDLEXTOG_STREXTOG_HOTSTOG_RUNLTOG_DIUR NH3_RUNECO_RUNEXCO_IDLEX CO_STREX SOx_RUNE SOx_IDLEX SOx_STREX Santa Clara 2023 HHDT Aggregate Aggregate Gasoline 3.454009 114.3093 114.3093 0 69.1 0781 8.107874 0 1.602501 0.00493 0 0.0017 0.005 0.035266 0.005362 0 0.0018 49 0.02 0.100759 2306.817 0 49.81185 0.340225 0 0.00018 0.208909 0 0.04569 7 2.104867 0 0.000979 0.158374 1.426645 10.65375 3.071416 0 0.001072 0.15 8374 1.426645 10.65375 0.040468 83.0074 0 1.02738 0.022805 0 0.000492 Santa Clara 2023 HHDT Aggregate Aggregate Diesel 8235.059 991289 991289 0 120860.8 1. 969368 63.40488 2.849455 0.025957 0.031631 0 0.008769 0.027531 0.027131 0.033061 0 0.035077 0.078661 1656.801 12241.32 0 0.000809 0.237446 0 0.26 103 1.928625 0 0.017417 5.112156 0000 0.019828 5.819801 0000 0.214624 0.087393 74.20136 0 0.015689 0.115918 0 Santa Clara 2023 HHDT Aggregate Aggregate Electricity 6.70171 411.5054 0 411.5054 10 3.2044 000000 0.00874 0.013383 0 0 0 0.03496 0.038238 0000000000000000000000000000 Santa Clara 2023 HHDT Aggregate Aggregate Natural Ga 753.7366 53295.97 53295.97 0 69 14.034 1.208844 13.92832 0 0.001774 0.024237 0 0.009 0.046729 0.001929 0. 02636 0 0.036 0.133512 1398.51 10630.2 0 2.44811 37.44665 0 0.285095 2.167 036 0 0.054572 0.572265 0000 2.520799 38.25947 0000 0.860105 13.78246 74.03965 0000 Santa Clara 2023 LDA Aggregate Aggregate Gasoline 601938.3 22370251 22370251 0 27954 79 0.047412 0 0.27189 0.001217 0 0.001992 0.002 0.002656 0.001323 0 0.0021 67 0.008 0.007588 281.43 0 71.66478 0.002603 0 0.076449 0.004995 0 0.03413 4 0.01016 0 0.353794 0.094758 0.240611 1.480552 0.014823 0 0.387359 0.094 758 0.240611 1.480552 0.033781 0.787617 0 3.436611 0.002782 0 0.000708 Santa Clara 2023 LDA Aggregate Aggregate Diesel 1871.125 56220.8 56220.8 0 8000.531 0 .238318 0 0 0.018559 0 0 0.002 0.002698 0.019399 0 0 0.008 0.007709 234.426 0 0 0.001413 0 0 0.036934 0 0 0.030417 00000 0.034627 00000 0.0031 0.342459 0 0 0.002221 0 0 Santa Clara 2023 LDA Aggregate Aggregate Electricity 53751.15 2268185 0 2268185 2652 50.1 000000 0.002 0.001532 0 0 0 0.008 0.004377 0000000000000000000000000000 Santa Clara 2023 LDA Aggregate Aggregate Plug‐in Hy b 15805.32 700610.9 356649.7 343961.3 65355 0.00334 0 0.11551 0.000664 0 0. 002171 0.002 0.001373 0.000722 0 0.002361 0.008 0.003922 142.1102 0 66.08 871 0.000457 0 0.042604 0.000605 0 0.020916 0.001444 0 0.173285 0.040642 0 .036088 0.447056 0.002108 0 0.189725 0.040642 0.036088 0.447056 0.01970 5 0.219913 0 1.339893 0.001405 0 0.000653 Santa Clara 2023 LDT1 Aggregate Aggregate Gasoline 53782.25 1744480 1744480 0 239737 .9 0.143293 0 0.404336 0.00185 0 0.002837 0.002 0.003239 0.002012 0 0.0030 85 0.008 0.009253 332.6535 0 88.31133 0.006987 0 0.112557 0.010257 0 0.039 834 0.031222 0 0.583212 0.174145 0.503091 2.807011 0.045546 0 0.638542 0. 174145 0.503091 2.807011 0.035775 1.553409 0 5.660037 0.003289 0 0.00087 3 Santa Clara 2023 LDT1 Aggregate Aggregate Diesel 26.04714 391.8698 391.8698 0 75.177 37 1.659056 0 0 0.24041 0 0 0.002 0.003728 0.25128 0 0 0.008 0.010651 415.548 0 0 0.013928 0 0 0.06547 0 0 0.299852 00000 0.341362 00000 0.0031 1.601395 0 0 0.003938 0 0 Santa Clara 2023 LDT1 Aggregate Aggregate Electricity 194.8941 7068.184 0 7068.184 9 16.4832 000000 0.002 0.00154 0 0 0 0.008 0.0044 0000000000000000000000000000 Santa Clara 2023 LDT1 Aggregate Aggregate Plug‐in Hy b 43.27677 2048.369 944.1579 1104.211 178.9495 0.003025 0 0.11551 0.00038 7 0 0.00141 0.002 0.001383 0.000421 0 0.001534 0.008 0.003951 128.7649 0 70 .86641 0.000412 0 0.042439 0.000544 0 0.020762 0.001308 0 0.173285 0.0245 84 0.021781 0.285922 0.001909 0 0.189725 0.024584 0.021781 0.285922 0.01 9359 0.199575 0 1.339893 0.001273 0 0.000701 Santa Clara 2023 LDT2 Aggregate Aggregate Gasoline 280180.4 10140967 10140967 0 1311 796 0.077207 0 0.358346 0.001265 0 0.002003 0.002 0.003125 0.001375 0 0.00 2179 0.008 0.008929 348.3961 0 89.54446 0.003121 0 0.087759 0.006381 0 0.0 38646 0.012417 0 0.410727 0.085119 0.224187 1.404898 0.018118 0 0.449694 0.085119 0.224187 1.404898 0.035545 0.896823 0 3.892097 0.003444 0 0.000 885 Santa Clara 2023 LDT2 Aggregate Aggregate Diesel 978.4967 36936.87 36936.87 0 4673.4 01 0.046157 0 0 0.005431 0 0 0.002 0.003102 0.005677 0 0 0.008 0.008863 313.0 666 0 0 0.00065 0 0 0.049324 0 0 0.013984 00000 0.015919 00000 0.0031 0.132099 0 0 0.002966 0 0 Santa Clara 2023 LDT2 Aggregate Aggregate Electricity 1105.879 38931.7 0 38931.7 566 3.051 000000 0.002 0.001525 0 0 0 0.008 0.004357 0000000000000000000000000000 Santa Clara 2023 LDT2 Aggregate Aggregate Plug‐in Hy b 1696.55 77270.66 37142.68 40127.98 7015.234 0.003154 0 0.11551 0.000504 0 0.001759 0.002 0.001378 0.000548 0 0.001913 0.008 0.003938 134.2545 0 77 .03601 0.000429 0 0.042457 0.000568 0 0.020778 0.001364 0 0.173285 0.0262 4 0.024448 0.318232 0.00199 0 0.189725 0.02624 0.024448 0.318232 0.02014 4 0.207985 0 1.339893 0.001327 0 0.000762 Santa Clara 2023 LHDT1 Aggregate Aggregate Gasoline 19180.96 711085.5 711085.5 0 285 767.8 0.197814 0.037373 0.6588 0.001595 0 0.000328 0.002 0.0273 0.001734 0 0.000356 0.008 0.078 889.7424 120.2664 25.83956 0.009485 0.115635 0.03 4516 0.011082 0.003012 0.051891 0.047656 0.428153 0.172233 0.050564 0.2 77601 2.913784 0.069539 0.62476 0.188574 0.050564 0.277601 2.913784 0.0 44872 1.225109 3.753425 3.080251 0.008796 0.001189 0.000255 Santa Clara 2023 LHDT1 Aggregate Aggregate Diesel 9807.465 384084.8 384084.8 0 12336 5.6 1.780633 2.029274 0 0.038253 0.026974 0 0.003 0.0273 0.039983 0.02819 3 0 0.012 0.078 635.427 132.908 0 0.008623 0.005098 0 0.100112 0.02094 0 0.1 85652 0.10976 0000 0.211352 0.124954 0000 0.16551 0.518876 0.909745 0 0.006021 0.001259 0 Santa Clara 2023 LHDT2 Aggregate Aggregate Gasoline 2494.382 90793.04 90793.04 0 371 62.58 0.187016 0.036817 0.642061 0.001446 0 0.00026 0.002 0.03185 0.0015 72 0 0.000283 0.008 0.091 997.3845 138.7974 25.72325 0.007074 0.114568 0. 033461 0.01097 0.002967 0.050452 0.033047 0.42203 0.165607 0.046993 0.2 5097 2.676301 0.048222 0.615826 0.181319 0.046993 0.25097 2.676301 0.04 4967 0.961891 3.759407 3.119312 0.00986 0.001372 0.000254 Santa Clara 2023 LHDT2 Aggregate Aggregate Diesel 4479.532 176769.2 176769.2 0 56346 .87 1.416942 1.998258 0 0.034177 0.027026 0 0.003 0.03185 0.035723 0.0282 48 0 0.012 0.091 764.5039 212.1206 0 0.007824 0.005098 0 0.120448 0.03342 0 0.168448 0.10976 0000 0.191767 0.124954 0000 0.178982 0.44054 0.909745 0 0.007244 0.00201 0 Santa Clara 2023 MCY Aggregate Aggregate Gasoline 27894.5 164894.5 164894.5 0 55788. 99 0.586927 0 0.142374 0.001778 0 0.003413 0.001 0.0042 0.001899 0 0.00362 6 0.004 0.012 188.3093 0 49.59811 0.167622 0 0.187482 0.040223 0 0.008379 1 .105923 0 1.392636 3.5601 3.745685 3.947874 1.324135 0 1.513873 3.5601 3. 745685 3.947874 0.00876 13.08956 0 8.051197 0.001862 0 0.00049 Santa Clara 2023 MDV Aggregate Aggregate Gasoline 153799.1 5358084 5358084 0 712433. 9 0.11759 0 0.470106 0.001289 0 0.002144 0.002 0.003187 0.001402 0 0.00233 1 0.008 0.009106 422.6791 0 109.0331 0.004406 0 0.110292 0.008479 0 0.0430 81 0.018826 0 0.559259 0.101975 0.285798 1.72733 0.02744 0 0.612315 0.101 975 0.285798 1.72733 0.035428 1.067328 0 4.333252 0.004179 0 0.001078 Santa Clara 2023 MDV Aggregate Aggregate Diesel 2374.918 86834.44 86834.44 0 11267.0 5 0.053096 0 0 0.00515 0 0 0.002 0.003181 0.005383 0 0 0.008 0.00909 411.1632 0 0 0.000529 0 0 0.064779 0 0 0.011397 00000 0.012975 00000 0.0031 0.202592 0 0 0.003896 0 0 Santa Clara 2023 MDV Aggregate Aggregate Electricity 1130.115 40073.7 0 40073.7 5799 .833 000000 0.002 0.001524 0 0 0 0.008 0.004354 0000000000000000000000000000 Santa Clara 2023 MDV Aggregate Aggregate Plug‐in Hy b 986.0895 41899.14 20787.35 21111.79 4077.48 0.003256 0 0.11551 0.000638 0 0.002151 0.002 0.001376 0.000693 0 0.002339 0.008 0.00393 138.532 0 96.6 8489 0.000441 0 0.042261 0.000581 0 0.020595 0.001408 0 0.173285 0.02985 0 .028058 0.359617 0.002054 0 0.189725 0.02985 0.028058 0.359617 0.020837 0.214483 0 1.339893 0.00137 0 0.000956 Santa Clara 2023 MH Aggregate Aggregate Gasoline 2522.745 22546.87 22546.87 0 252.37 54 0.479133 0 0.412521 0.001781 0 0.000428 0.003 0.015756 0.001937 0 0.000 466 0.012 0.045017 1948.243 0 31.87585 0.018146 0 0.038028 0.02809 0 0.042 647 0.082252 0 0.163779 13.03985 0.30297 4.773625 0.120022 0 0.179318 13. 03985 0.30297 4.773625 0.044742 2.111943 0 3.629376 0.01926 0 0.000315 Santa Clara 2023 MH Aggregate Aggregate Diesel 959.1578 9344.849 9344.849 0 95.91578 4.269554 0 0 0.097907 0 0 0.004 0.015675 0.102334 0 0 0.016 0.044785 1081.43 5 0 0 0.005704 0 0 0.17038 0 0 0.122812 00000 0.139813 00000 0.150005 0.410284 0 0 0.010247 0 0 Santa Clara 2023 MHDT Aggregate Aggregate Gasoline 1418.703 70785.86 70785.86 0 2838 5.41 0.562864 0.088304 0.453053 0.001386 0 0.000555 0.003 0.015756 0.001 507 0 0.000603 0.012 0.045017 1792.411 536.9661 47.19918 0.018074 0.2545 89 0.049387 0.026381 0.007064 0.032566 0.09086 1.010025 0.279571 0.0371 87 0.302385 3.037923 0.132583 1.473826 0.306095 0.037187 0.302385 3.037 923 0.04497 1.909686 15.08517 6.156285 0.01772 0.005308 0.000467 Santa Clara 2023 MHDT Aggregate Aggregate Diesel 10273.55 431550.4 431550.4 0 122418 .7 1.337342 13.57242 1.624162 0.016518 0.035742 0 0.003 0.015941 0.01726 5 0.037358 0 0.012 0.045546 1151.562 2263.789 0 0.001721 0.012298 0 0.1814 29 0.356661 0 0.037048 0.26478 0000 0.042176 0.301431 0000 0.209014 0.132571 7.583386 0 0.010905 0.021437 0 Santa Clara 2023 MHDT Aggregate Aggregate Electricity 4.749835 101.8022 0 101.8022 5 9.6458 000000 0.003 0.00799 0 0 0 0.012 0.022828 0000000000000000000000000000 Santa Clara 2023 MHDT Aggregate Aggregate Natural Ga 83.841 4047.874 4047.874 0 762. 81 0.141319 6.52743 0 0.001137 0.017647 0 0.003 0.016002 0.001236 0.01919 3 0 0.012 0.045721 989.385 5296.533 0 0.740055 17.59163 0 0.201693 1.07973 3 0 0.010574 0.25135 0000 0.755281 17.95355 0000 1.06 2.992708 33.64344 0000 Santa Clara 2023 OBUS Aggregate Aggregate Gasoline 458.8974 20830.08 20830.08 0 9181 .619 0.553081 0.064991 0.405616 0.000893 0 0.000264 0.003 0.01568 0.0009 72 0 0.000287 0.012 0.044799 1784.092 381.8461 31.89445 0.015808 0.19493 8 0.036281 0.026177 0.005253 0.030766 0.078109 0.745234 0.192301 0.0347 06 0.154035 2.766253 0.113977 1.087444 0.210546 0.034706 0.154035 2.766 253 0.044918 1.743956 5.768375 4.071703 0.017638 0.003775 0.000315 Santa Clara 2023 OBUS Aggregate Aggregate Diesel 870.4209 61645.66 61645.66 0 8910.7 55 1.203188 7.410097 1.541404 0.020323 0.008632 0 0.003 0.018018 0.02124 2 0.009022 0 0.012 0.05148 1282.538 1552.949 0 0.001991 0.020568 0 0.20206 4 0.244668 0 0.04286 0.442828 0000 0.048793 0.504126 0000 0.215865 0.153454 7.510858 0 0.012145 0.014706 0 Santa Clara 2023 OBUS Aggregate Aggregate Natural Ga 6.1456 409.5466 409.5466 0 54.6 9584 0.219315 1.549107 0 0.000923 0.00362 0 0.003 0.016148 0.001004 0.003 937 0 0.012 0.046137 1017.405 1188.285 0 0.774069 4.381267 0 0.207405 0.24 224 0 0.01106 0.0626 0000 0.789994 4.471404 0000 1.06 3.211954 6.724204 0000 Santa Clara 2023 SBUS Aggregate Aggregate Gasoline 166.9867 8309.308 8309.308 0 667. 9468 0.519317 0.925703 0.7051 0.000862 0 0.00056 0.002 0.015721 0.000937 0 0.000609 0.008 0.044917 815.0909 2602.033 58.66947 0.011871 2.46208 0. 074918 0.027733 0.086224 0.064904 0.057744 10.62943 0.427061 0.112221 0 .259299 1.591441 0.084259 15.51043 0.467578 0.112221 0.259299 1.591441 0.045 1.469507 82.16746 10.56434 0.008058 0.025724 0.00058 Santa Clara 2023 SBUS Aggregate Aggregate Diesel 667.1185 15392.68 15392.68 0 9659.8 76 4.028015 22.39863 0.467155 0.020908 0.02125 0 0.003 0.015721 0.021853 0.022211 0 0.012 0.044917 1148.524 2237.814 0 0.002748 0.008083 0 0.18095 0.352568 0 0.059161 0.174017 0000 0.06735 0.198106 0000 0.144154 0.181489 4.581854 0 0.010876 0.021191 0 Santa Clara 2023 SBUS Aggregate Aggregate Electricity 0.302373 3.510494 0 3.510494 4 .378365 000000 0.003 0.00786 0 0 0 0.012 0.022459 0000000000000000000000000000 Santa Clara 2023 SBUS Aggregate Aggregate Natural Ga 23.50762 595.8705 595.8705 0 34 0.3903 0.587321 5.282702 0 0.003378 0.011076 0 0.003 0.015721 0.003674 0. 012046 0 0.012 0.044917 1271.127 4058.811 0 3.490611 15.40242 0 0.259128 0 .827415 0 0.049874 0.22007 0000 3.562424 15.7193 0000 1.06 11.90284 20.11199 0000 Santa Clara 2023 UBUS Aggregate Aggregate Gasoline 45.94709 4798.244 4798.244 0 183. 7884 0.026807 0 0.443444 0.001143 0 0.000128 0.002 0.03185 0.001243 0 0.00 014 0.008 0.091 926.2924 0 36.84613 0.002031 0 0.041715 0.004215 0 0.07014 9 0.005614 0 0.147842 0.038144 0.09212 0.456803 0.008192 0 0.161868 0.038 144 0.09212 0.456803 0.045 0.571128 0 6.073786 0.009157 0 0.000364 Santa Clara 2023 UBUS Aggregate Aggregate Diesel 436.6681 48829.71 48829.71 0 1746.6 72 0.386256 0 0 0.007022 0 0 0.0083 0.0385 0.00734 0 0 0.0332 0.11 1100.965 0 0 0.003215 0 0 0.173457 0 0 0.069208 00000 0.078788 00000 0.18785 0.079368 0 0 0.010432 0 0 Santa Clara 2023 UBUS Aggregate Aggregate Electricity 5.046757 199.0027 0 199.0027 2 0.18703 000000 0.009 0.01925 0 0 0 0.036 0.055 0000000000000000000000000000 Santa Clara 2023 UBUS Aggregate Aggregate Natural Ga 42.26114 4829.673 4829.673 0 16 9.0446 0.05878 0 0 0.000282 0 0 0.008182 0.0385 0.000295 0 0 0.032727 0.11 12 99.127 0 0 4.245742 0 0 0.264835 0 0 0.060663 00000 4.333091 00000 0.97 49.04231 00000 Source: EMFAC2021 (v1.0.2) Emission Rates
Region Type: County
Region: Santa Clara
Calendar Year: 2024
Season: Annual
Vehicle Classification: EMFAC2007 Categories
Units: miles/day for CVMT and EVMT, trips/day for Trips, g/mile for RUNEX, PMBW and PMTW, g/trip for STREX, HOTSOAK and RUNLOSS, g/vehicle/day for IDLEX and DIURN. PHEV calculated based on total VMT.
Region Calendar Y Vehicle Ca
tModel Yea Speed Fuel Population Total VMT CVMT EVMT Trips NOx_RUN ENOx_IDLEXNOx_STREXPM2.5_RU PM2.5_IDL PM2.5_STRPM2.5_PMPM2.5_PMPM10_RUNPM10_IDLEPM10_STR PM10_PMTPM10_PMBCO2_RUNECO2_IDLEXCO2_STREXCH4_RUNE CH4_IDLEX CH4_STREXN2O_RUNEN2O_IDLEXN2O_STREXROG_RUNEROG_IDLEXROG_STREXROG_HOTSROG_RUNLROG_DIUR TOG_RUNETOG_IDLEXTOG_STREXTOG_HOTSTOG_RUNLTOG_DIUR NH3_RUNECO_RUNEXCO_IDLEX CO_STREX SOx_RUNE SOx_IDLEX SOx_STREX Santa Clara 2024 HHDT Aggregate Aggregate Gasoline 2.588708 115.1526 115.1526 0 51.7 9487 7.013725 0 1.695629 0.003612 0 0.001433 0.005 0.03384 0.003929 0 0.00 1559 0.02 0.096686 2166.164 0 50.04419 0.246012 0 0.000205 0.192927 0 0.04 9797 1.47824 0 0.001115 0.149022 1.34233 10.02547 2.157045 0 0.001221 0.1 49022 1.34233 10.02547 0.04274 52.51903 0 1.60109 0.021415 0 0.000495 Santa Clara 2024 HHDT Aggregate Aggregate Diesel 8486.693 1001095 1001095 0 124748.4 1.894567 62.32042 2.898867 0.025674 0.03017 0 0.00877 0.027454 0.026835 0.031534 0 0.035082 0.07844 1634.1 11997.01 0 0.000777 0.23663 0 0.257453 1.890134 0 0.016732 5.094584 0000 0.019048 5.799796 0000 0.215084 0.082524 74.10576 0 0.015474 0.113605 0 Santa Clara 2024 HHDT Aggregate Aggregate Electricity 28.33039 2794.261 0 2794.261 3 78.7946 000000 0.008585 0.014055 0 0 0 0.034341 0.040158 0000000000000000000000000000 Santa Clara 2024 HHDT Aggregate Aggregate Natural Ga 794.401 54591.27 54591.27 0 724 9.717 1.128254 13.55515 0 0.001724 0.024776 0 0.009 0.047521 0.001875 0.0 26946 0 0.036 0.135775 1387.534 10583.64 0 2.344742 36.30276 0 0.282858 2. 157544 0 0.050833 0.550696 0000 2.412728 37.08609 0000 0.85184 13.40196 74.43135 0000 Santa Clara 2024 LDA Aggregate Aggregate Gasoline 600108.2 22290344 22290344 0 27866 17 0.042281 0 0.257993 0.001177 0 0.001931 0.002 0.002656 0.00128 0 0.0021 0.008 0.007587 275.9552 0 70.08069 0.002338 0 0.072036 0.004672 0 0.03322 8 0.008937 0 0.328953 0.090491 0.230394 1.422636 0.013041 0 0.360162 0.09 0491 0.230394 1.422636 0.034712 0.737516 0 3.233068 0.002728 0 0.000693 Santa Clara 2024 LDA Aggregate Aggregate Diesel 1750.024 51573.48 51573.48 0 7442.61 0.213181 0 0 0.016747 0 0 0.002 0.002706 0.017504 0 0 0.008 0.00773 232.3976 0 0 0.001289 0 0 0.036614 0 0 0.027749 00000 0.03159 00000 0.0031 0.331109 0 0 0.002202 0 0 Santa Clara 2024 LDA Aggregate Aggregate Electricity 57627.4 2472767 0 2472767 28273 3000000 0.002 0.001533 0 0 0 0.008 0.00438 0000000000000000000000000000 Santa Clara 2024 LDA Aggregate Aggregate Plug‐in Hy b 17457.1 767059.2 381568.7 385490.5 72185.1 0.003264 0 0.11551 0.000618 0 0.00207 0.002 0.001377 0.000672 0 0.002252 0.008 0.003935 138.86 0 65.124 7 0.000444 0 0.04244 0.000587 0 0.020762 0.001412 0 0.173285 0.041111 0.03 7292 0.447104 0.00206 0 0.189725 0.041111 0.037292 0.447104 0.019502 0.2 14853 0 1.339893 0.001373 0 0.000644 Santa Clara 2024 LDT1 Aggregate Aggregate Gasoline 52693.37 1706864 1706864 0 234793 .4 0.128357 0 0.381294 0.001737 0 0.002678 0.002 0.00324 0.001889 0 0.0029 13 0.008 0.009258 327.2571 0 86.38434 0.006261 0 0.105365 0.009424 0 0.038 69 0.027741 0 0.539321 0.165332 0.472477 2.667158 0.040475 0 0.590488 0.1 65332 0.472477 2.667158 0.036079 1.427621 0 5.253053 0.003235 0 0.000854 Santa Clara 2024 LDT1 Aggregate Aggregate Diesel 23.46233 343.9308 343.9308 0 66.444 59 1.651932 0 0 0.239373 0 0 0.002 0.003724 0.250196 0 0 0.008 0.01064 415.30 02 0 0 0.013862 0 0 0.065431 0 0 0.298448 00000 0.339763 00000 0.0031 1.593665 0 0 0.003935 0 0 Santa Clara 2024 LDT1 Aggregate Aggregate Electricity 211.0028 8008.646 0 8008.646 9 94.4346 000000 0.002 0.001539 0 0 0 0.008 0.004397 0000000000000000000000000000 Santa Clara 2024 LDT1 Aggregate Aggregate Plug‐in Hy b 67.64578 3164.46 1414.302 1750.158 279.7153 0.002933 0 0.11551 0.000367 0 0.001381 0.002 0.001389 0.0004 0 0.001502 0.008 0.003967 124.8456 0 69.3 1208 0.000397 0 0.042219 0.000522 0 0.020556 0.001268 0 0.173285 0.024153 0.020965 0.279628 0.001851 0 0.189725 0.024153 0.020965 0.279628 0.0187 71 0.19347 0 1.339893 0.001234 0 0.000685 Santa Clara 2024 LDT2 Aggregate Aggregate Gasoline 285585.4 10322758 10322758 0 1336 438 0.069091 0 0.334237 0.001227 0 0.001959 0.002 0.003127 0.001334 0 0.00 213 0.008 0.008936 340.3247 0 87.29427 0.002864 0 0.082985 0.005943 0 0.03 7254 0.011242 0 0.384216 0.081741 0.217688 1.368189 0.016404 0 0.420668 0 .081741 0.217688 1.368189 0.036359 0.842122 0 3.673764 0.003364 0 0.0008 63 Santa Clara 2024 LDT2 Aggregate Aggregate Diesel 1015.453 37944.26 37944.26 0 4835.4 34 0.041515 0 0 0.004813 0 0 0.002 0.003113 0.005031 0 0 0.008 0.008895 307.1 615 0 0 0.000609 0 0 0.048393 0 0 0.013105 00000 0.014919 00000 0.0031 0.129976 0 0 0.002911 0 0 Santa Clara 2024 LDT2 Aggregate Aggregate Electricity 1597.567 55532.59 0 55532.59 8 150.927 000000 0.002 0.001526 0 0 0 0.008 0.004359 0000000000000000000000000000 Santa Clara 2024 LDT2 Aggregate Aggregate Plug‐in Hy b 2116.58 94757.71 44376.61 50381.09 8752.056 0.003073 0 0.11551 0.000467 0 0.001672 0.002 0.001383 0.000508 0 0.001819 0.008 0.003953 130.7877 0 75 .60584 0.000416 0 0.042233 0.000547 0 0.020569 0.001329 0 0.173285 0.0259 49 0.023686 0.309385 0.001939 0 0.189725 0.025949 0.023686 0.309385 0.01 9635 0.202568 0 1.339893 0.001293 0 0.000747 Santa Clara 2024 LHDT1 Aggregate Aggregate Gasoline 19314.14 722529.3 722529.3 0 287 751.9 0.17374 0.036221 0.636996 0.001534 0 0.000302 0.002 0.0273 0.00166 8 0 0.000328 0.008 0.078 871.4559 119.0993 25.78022 0.008358 0.112945 0.0 32997 0.009778 0.002977 0.050968 0.041718 0.415023 0.163611 0.047402 0. 263136 2.768514 0.060875 0.605601 0.179134 0.047402 0.263136 2.768514 0 .044898 1.142278 3.756209 3.123927 0.008615 0.001177 0.000255 Santa Clara 2024 LHDT1 Aggregate Aggregate Diesel 10107.74 398004.1 398004.1 0 12714 2.6 1.563015 1.92168 0 0.035058 0.026804 0 0.003 0.0273 0.036643 0.028016 0 0.012 0.078 631.4008 131.1503 0 0.008006 0.005098 0 0.099477 0.020663 0 0 .172364 0.10976 0000 0.196225 0.124954 0000 0.172781 0.473594 0.909745 0 0.005983 0.001243 0 Santa Clara 2024 LHDT1 Aggregate Aggregate Electricity 70.82836 5110.544 0 5110.544 989.4273 000000 0.002 0.01365 0 0 0 0.008 0.039 0000000000000000000000000000 Santa Clara 2024 LHDT2 Aggregate Aggregate Gasoline 2506.906 91452.57 91452.57 0 373 49.16 0.16518 0.035604 0.621534 0.00139 0 0.000239 0.002 0.03185 0.00151 2 0 0.000259 0.008 0.091 980.0361 137.5922 25.51292 0.006183 0.111453 0.0 31983 0.009819 0.00291 0.049384 0.028613 0.40822 0.157242 0.04419 0.238 167 2.558385 0.041752 0.595674 0.17216 0.04419 0.238167 2.558385 0.0449 71 0.899209 3.762546 3.129931 0.009689 0.00136 0.000252 Santa Clara 2024 LHDT2 Aggregate Aggregate Diesel 4663.455 183558.4 183558.4 0 58660 .4 1.266102 1.895403 0 0.032055 0.027 0 0.003 0.03185 0.033504 0.028221 0 0 .012 0.091 756.8682 209.5618 0 0.007406 0.005098 0 0.119245 0.033017 0 0.1 59439 0.10976 0000 0.18151 0.124954 0000 0.184132 0.411861 0.909745 0 0.007172 0.001986 0 Santa Clara 2024 LHDT2 Aggregate Aggregate Electricity 18.33259 1253.286 0 1253.286 242.668 000000 0.002 0.015925 0 0 0 0.008 0.0455 0000000000000000000000000000 Santa Clara 2024 MCY Aggregate Aggregate Gasoline 28171.51 166022.3 166022.3 0 56343 .02 0.571344 0 0.135477 0.001779 0 0.003248 0.001 0.0042 0.001902 0 0.0034 56 0.004 0.012 187.743 0 48.37697 0.162609 0 0.181972 0.039558 0 0.00802 1. 062175 0 1.345317 3.559276 3.75283 3.900294 1.276951 0 1.462608 3.559276 3.75283 3.900294 0.008808 12.6697 0 8.002987 0.001856 0 0.000478 Santa Clara 2024 MDV Aggregate Aggregate Gasoline 156642.4 5468054 5468054 0 726101. 1 0.101279 0 0.42828 0.001229 0 0.002042 0.002 0.003184 0.001336 0 0.00222 1 0.008 0.009096 412.8049 0 106.2216 0.003873 0 0.10186 0.007628 0 0.04096 7 0.01626 0 0.508806 0.097051 0.275722 1.677059 0.023715 0 0.557077 0.097 051 0.275722 1.677059 0.036179 0.972241 0 4.022964 0.004081 0 0.00105 Santa Clara 2024 MDV Aggregate Aggregate Diesel 2400.615 86292.69 86292.69 0 11318.8 2 0.048844 0 0 0.004909 0 0 0.002 0.003206 0.005131 0 0 0.008 0.009159 405.66 21 0 0 0.00051 0 0 0.063912 0 0 0.010978 00000 0.012498 00000 0.0031 0.201538 0 0 0.003844 0 0 Santa Clara 2024 MDV Aggregate Aggregate Electricity 1678.684 58660.63 0 58660.63 85 78.496 000000 0.002 0.001525 0 0 0 0.008 0.004358 0000000000000000000000000000 Santa Clara 2024 MDV Aggregate Aggregate Plug‐in Hy b 1250.857 52904.03 25301.52 27602.51 5172.294 0.003138 0 0.11551 0.00056 1 0 0.001962 0.002 0.001382 0.00061 0 0.002134 0.008 0.003948 133.5372 0 94 .06379 0.000423 0 0.042047 0.000554 0 0.020395 0.001357 0 0.173285 0.0303 18 0.026684 0.341695 0.00198 0 0.189725 0.030318 0.026684 0.341695 0.020 087 0.206737 0 1.339893 0.00132 0 0.00093 Santa Clara 2024 MH Aggregate Aggregate Gasoline 2420.57 22012.3 22012.3 0 242.1538 0 .420938 0 0.419963 0.001679 0 0.000404 0.003 0.015756 0.001826 0 0.000439 0.012 0.045017 1947.501 0 31.65056 0.015478 0 0.037539 0.025731 0 0.04407 0.06827 0 0.159123 12.21143 0.286769 4.596479 0.09962 0 0.174219 12.2114 3 0.286769 4.596479 0.044846 1.682224 0 3.497247 0.019253 0 0.000313 Santa Clara 2024 MH Aggregate Aggregate Diesel 977.3606 9498.302 9498.302 0 97.73606 4.117169 0 0 0.091772 0 0 0.004 0.015675 0.095921 0 0 0.016 0.044785 1081.93 1 0 0 0.005558 0 0 0.170459 0 0 0.11965 00000 0.136214 00000 0.155539 0.397281 0 0 0.010252 0 0 Santa Clara 2024 MHDT Aggregate Aggregate Gasoline 1414.552 71600.35 71600.35 0 2830 2.35 0.470752 0.088485 0.440963 0.001362 0 0.000533 0.003 0.015756 0.001 482 0 0.000579 0.012 0.045017 1768.687 531.8002 46.25227 0.015051 0.2580 8 0.047572 0.022913 0.00727 0.03271 0.074951 1.01271 0.265405 0.033945 0 .276365 2.798712 0.109368 1.477744 0.290585 0.033945 0.276365 2.798712 0.04498 1.56073 15.11634 5.825814 0.017485 0.005257 0.000457 Santa Clara 2024 MHDT Aggregate Aggregate Diesel 10390.53 434043.6 434043.6 0 123939 1.232824 13.11952 1.642732 0.014397 0.029902 0 0.003 0.015941 0.015048 0 .031254 0 0.012 0.045546 1147.309 2248.547 0 0.001507 0.01158 0 0.180759 0 .35426 0 0.032455 0.249319 0000 0.036947 0.283831 0000 0.210532 0.120871 7.556027 0 0.010864 0.021292 0 Santa Clara 2024 MHDT Aggregate Aggregate Electricity 30.91601 1660.353 0 1660.353 4 07.4536 000000 0.003 0.007956 0 0 0 0.012 0.022732 0000000000000000000000000000 Santa Clara 2024 MHDT Aggregate Aggregate Natural Ga 90.59449 4303.581 4303.581 0 82 7.6228 0.133415 6.499719 0 0.001179 0.018131 0 0.003 0.016007 0.001282 0. 019719 0 0.012 0.045734 984.6917 5301.101 0 0.74573 17.31409 0 0.200736 1. 080664 0 0.010655 0.247384 0000 0.761072 17.6703 0000 1.06 2.995842 34.7393 0000 Santa Clara 2024 OBUS Aggregate Aggregate Gasoline 443.1467 19894.31 19894.31 0 8866 .48 0.49672 0.06506 0.408547 0.000907 0 0.000252 0.003 0.01568 0.000987 0 0.000274 0.012 0.044799 1764.001 379.4143 31.61308 0.013757 0.195733 0. 03606 0.024018 0.005304 0.031028 0.067076 0.746281 0.190964 0.033873 0. 154922 2.818385 0.097877 1.088971 0.209081 0.033873 0.154922 2.818385 0 .044969 1.491576 5.774637 4.000641 0.017439 0.003751 0.000313 Santa Clara 2024 OBUS Aggregate Aggregate Diesel 893.1376 61949.05 61949.05 0 9141.6 25 1.178643 7.363387 1.543157 0.019849 0.008167 0 0.003 0.018015 0.02074 6 0.008536 0 0.012 0.051472 1273.38 1538.564 0 0.001935 0.020479 0 0.20062 2 0.242401 0 0.04166 0.440905 0000 0.047427 0.501937 0000 0.216021 0.150181 7.500483 0 0.012058 0.014569 0 Santa Clara 2024 OBUS Aggregate Aggregate Electricity 1.087481 92.50105 0 92.50105 2 1.75833 000000 0.003 0.00784 0 0 0 0.012 0.022399 0000000000000000000000000000 Santa Clara 2024 OBUS Aggregate Aggregate Natural Ga 7.05737 469.3876 469.3876 0 62. 81059 0.190585 1.537414 0 0.00106 0.003899 0 0.003 0.016148 0.001153 0.00 4241 0 0.012 0.046137 1004.237 1191.581 0 0.789796 4.236895 0 0.20472 0.24 2912 0 0.011285 0.060537 0000 0.806045 4.324062 0000 1.06 3.254325 7.353064 0000 Santa Clara 2024 SBUS Aggregate Aggregate Gasoline 172.6948 8584.866 8584.866 0 690. 7791 0.50288 0.925939 0.716801 0.000864 0 0.000567 0.002 0.015721 0.0009 39 0 0.000616 0.008 0.044917 810.6064 2589.131 58.1367 0.011135 2.464862 0.074893 0.027101 0.086311 0.065929 0.054059 10.63288 0.426367 0.11391 4 0.274691 1.686167 0.078883 15.51547 0.466819 0.113914 0.274691 1.6861 67 0.045 1.38705 82.18841 10.36621 0.008014 0.025596 0.000575 Santa Clara 2024 SBUS Aggregate Aggregate Diesel 670.5958 15345.26 15345.26 0 9710.2 28 3.821388 21.87689 0.482851 0.019766 0.019703 0 0.003 0.015721 0.02066 0.020594 0 0.012 0.044917 1144.18 2229 0 0.002665 0.008001 0 0.180266 0.35 118 0 0.057376 0.172257 0000 0.065318 0.196101 0000 0.148025 0.1775 4.677792 0 0.010835 0.021107 0 Santa Clara 2024 SBUS Aggregate Aggregate Electricity 2.064666 64.35501 0 64.35501 2 3.64639 000000 0.002539 0.00786 0 0 0 0.010157 0.022459 0000000000000000000000000000 Santa Clara 2024 SBUS Aggregate Aggregate Natural Ga 24.3995 612.0941 612.0941 0 353 .3048 0.567729 5.270895 0 0.003378 0.011357 0 0.003 0.015721 0.003674 0.0 12352 0 0.012 0.044917 1261.305 4066.736 0 3.436672 15.25665 0 0.257125 0. 829031 0 0.049103 0.217987 0000 3.507376 15.57053 0000 1.06 11.64901 20.74693 0000 Santa Clara 2024 UBUS Aggregate Aggregate Gasoline 46.08313 4812.451 4812.451 0 184. 3325 0.027483 0 0.457232 0.001143 0 0.000128 0.002 0.03185 0.001243 0 0.00 014 0.008 0.091 926.0836 0 36.94783 0.002034 0 0.043067 0.004288 0 0.07171 7 0.005634 0 0.152979 0.038099 0.092116 0.456438 0.008221 0 0.167492 0.03 8099 0.092116 0.456438 0.045 0.581148 0 6.130495 0.009155 0 0.000365 Santa Clara 2024 UBUS Aggregate Aggregate Diesel 437.4745 48917.61 48917.61 0 1749.8 98 0.386257 0 0 0.007023 0 0 0.0083 0.0385 0.00734 0 0 0.0332 0.11 1101.14 0 0 0 .003215 0 0 0.173485 0 0 0.069208 00000 0.078788 00000 0.187908 0.079368 0 0 0.010434 0 0 Santa Clara 2024 UBUS Aggregate Aggregate Electricity 5.347565 235.0626 0 235.0626 2 1.39026 000000 0.00888 0.01925 0 0 0 0.03552 0.055 0000000000000000000000000000 Santa Clara 2024 UBUS Aggregate Aggregate Natural Ga 42.58696 4865.187 4865.187 0 17 0.3478 0.058788 0 0 0.000282 0 0 0.008183 0.0385 0.000295 0 0 0.032731 0.11 1 299.206 0 0 4.246059 0 0 0.264852 0 0 0.060668 00000 4.333415 00000 0.97 49.04786 00000 Source: EMFAC2021 (v1.0.2) Emission Rates
Region Type: County
Region: Santa Clara
Calendar Year: 2025
Season: Annual
Vehicle Classification: EMFAC2007 Categories
Units: miles/day for CVMT and EVMT, trips/day for Trips, g/mile for RUNEX, PMBW and PMTW, g/trip for STREX, HOTSOAK and RUNLOSS, g/vehicle/day for IDLEX and DIURN. PHEV calculated based on total VMT.
Region Calendar Y Vehicle Ca
tModel Yea Speed Fuel Population Total VMT CVMT EVMT Trips NOx_RUN ENOx_IDLEXNOx_STREXPM2.5_RU PM2.5_IDL PM2.5_STRPM2.5_PMPM2.5_PMPM10_RUNPM10_IDLEPM10_STR PM10_PMTPM10_PMBCO2_RUNECO2_IDLEXCO2_STREXCH4_RUNE CH4_IDLEX CH4_STREXN2O_RUNEN2O_IDLEXN2O_STREXROG_RUNEROG_IDLEXROG_STREXROG_HOTSROG_RUNLROG_DIUR TOG_RUNETOG_IDLEXTOG_STREXTOG_HOTSTOG_RUNLTOG_DIUR NH3_RUNECO_RUNEXCO_IDLEX CO_STREX SOx_RUNE SOx_IDLEX SOx_STREX Santa Clara 2025 HHDT Aggregate Aggregate Gasoline 2.330359 124.9448 124.9448 0 46.6 2582 5.556909 0 1.379041 0.003103 0 0.001399 0.005 0.033068 0.003375 0 0.0 01521 0.02 0.09448 2106.229 0 50.03138 0.207413 0 0.000226 0.167059 0 0.04 1557 1.222197 0 0.00123 0.140217 1.263022 9.434649 1.783427 0 0.001346 0. 140217 1.263022 9.434649 0.043157 47.7242 0 2.001616 0.020822 0 0.000495 Santa Clara 2025 HHDT Aggregate Aggregate Diesel 8692.575 1008964 1008964 0 127877.1 1.825194 60.91449 2.931995 0.025335 0.028938 0 0.008772 0.027421 0.0264 8 0.030247 0 0.035088 0.078345 1608.776 11755.34 0 0.00075 0.235891 0 0.25 3463 1.852058 0 0.016139 5.078674 0000 0.018373 5.781684 0000 0.215507 0.078083 74.00904 0 0.015234 0.111316 0 Santa Clara 2025 HHDT Aggregate Aggregate Electricity 63.3712 6579.675 0 6579.675 82 5.9972 000000 0.008551 0.014281 0 0 0 0.034206 0.040802 0000000000000000000000000000 Santa Clara 2025 HHDT Aggregate Aggregate Natural Ga 832.405 55779.38 55779.38 0 755 5.504 1.049864 13.18492 0 0.00168 0.025258 0 0.009 0.048303 0.001827 0.02 747 0 0.036 0.138007 1375.94 10529.31 0 2.235928 35.17609 0 0.280494 2.146 469 0 0.047235 0.530122 0000 2.299347 35.93114 0000 0.843784 13.01274 74.75478 0000 Santa Clara 2025 LDA Aggregate Aggregate Gasoline 598860.3 22133915 22133915 0 27803 84 0.038209 0 0.245539 0.001142 0 0.00188 0.002 0.002655 0.001242 0 0.0020 44 0.008 0.007587 270.1738 0 68.47346 0.002117 0 0.067825 0.004408 0 0.032 293 0.007947 0 0.306311 0.087189 0.224301 1.384954 0.011596 0 0.335372 0. 087189 0.224301 1.384954 0.035611 0.6952 0 3.049452 0.002671 0 0.000677 Santa Clara 2025 LDA Aggregate Aggregate Diesel 1620.04 46912.85 46912.85 0 6871.193 0.18842 0 0 0.015236 0 0 0.002 0.002712 0.015925 0 0 0.008 0.007748 229.9477 0 0 0.001193 0 0 0.036228 0 0 0.025693 00000 0.02925 00000 0.0031 0.319914 0 0 0.002179 0 0 Santa Clara 2025 LDA Aggregate Aggregate Electricity 61443.19 2670452 0 2670452 2998 52.7 000000 0.002 0.001534 0 0 0 0.008 0.004382 0000000000000000000000000000 Santa Clara 2025 LDA Aggregate Aggregate Plug‐in Hy b 19037.66 825567.7 401013 424554.8 78720.74 0.003187 0 0.11551 0.000578 0 0.001985 0.002 0.001382 0.000629 0 0.002159 0.008 0.003948 135.5854 0 64. 10836 0.000432 0 0.042249 0.000569 0 0.020584 0.001378 0 0.173285 0.04116 4 0.03735 0.440525 0.002011 0 0.189725 0.041164 0.03735 0.440525 0.01924 1 0.209757 0 1.339893 0.00134 0 0.000634 Santa Clara 2025 LDT1 Aggregate Aggregate Gasoline 51680.86 1664706 1664706 0 230186 0.115355 0 0.35972 0.001639 0 0.002543 0.002 0.003241 0.001782 0 0.002766 0.008 0.00926 321.489 0 84.45547 0.005621 0 0.098552 0.008687 0 0.037511 0 .02471 0 0.498818 0.156963 0.442299 2.52236 0.036056 0 0.546143 0.156963 0.442299 2.52236 0.036453 1.317416 0 4.886115 0.003178 0 0.000835 Santa Clara 2025 LDT1 Aggregate Aggregate Diesel 21.28272 302.8258 302.8258 0 59.132 31 1.64381 0 0 0.238169 0 0 0.002 0.00372 0.248938 0 0 0.008 0.010628 414.944 2 0 0 0.013797 0 0 0.065375 0 0 0.297038 00000 0.338158 00000 0.0031 1.585068 0 0 0.003932 0 0 Santa Clara 2025 LDT1 Aggregate Aggregate Electricity 234.4578 9323.704 0 9323.704 1 109.796 000000 0.002 0.001537 0 0 0 0.008 0.004392 0000000000000000000000000000 Santa Clara 2025 LDT1 Aggregate Aggregate Plug‐in Hy b 98.13198 4519.182 1961.286 2557.896 405.7758 0.002848 0 0.11551 0.00035 3 0 0.001365 0.002 0.001394 0.000383 0 0.001485 0.008 0.003982 121.222 0 67 .75681 0.000383 0 0.041987 0.000501 0 0.020339 0.001231 0 0.173285 0.0238 95 0.020384 0.276746 0.001797 0 0.189725 0.023895 0.020384 0.276746 0.01 8228 0.187824 0 1.339893 0.001198 0 0.00067 Santa Clara 2025 LDT2 Aggregate Aggregate Gasoline 290874.7 10447706 10447706 0 1360 241 0.06257 0 0.314364 0.001192 0 0.001919 0.002 0.00313 0.001296 0 0.0020 87 0.008 0.008944 332.1841 0 85.06833 0.002642 0 0.078494 0.005588 0 0.036 037 0.010244 0 0.360071 0.079452 0.214938 1.349256 0.014949 0 0.394233 0. 079452 0.214938 1.349256 0.03712 0.795621 0 3.47417 0.003284 0 0.000841 Santa Clara 2025 LDT2 Aggregate Aggregate Diesel 1049.952 38652.34 38652.34 0 4980.3 4 0.039332 0 0 0.004727 0 0 0.002 0.003123 0.004941 0 0 0.008 0.008921 301.00 55 0 0 0.000603 0 0 0.047424 0 0 0.01298 00000 0.014777 00000 0.0031 0.129797 0 0 0.002852 0 0 Santa Clara 2025 LDT2 Aggregate Aggregate Electricity 2157.059 73663.77 0 73663.77 1 0962.38 000000 0.002 0.001527 0 0 0 0.008 0.004362 0000000000000000000000000000 Santa Clara 2025 LDT2 Aggregate Aggregate Plug‐in Hy b 2561.885 112327.2 51267.44 61059.78 10593.4 0.002995 0 0.11551 0.000438 0 0.00161 0.002 0.001388 0.000477 0 0.001751 0.008 0.003967 127.4509 0 74. 14084 0.000403 0 0.041992 0.000528 0 0.020344 0.001295 0 0.173285 0.02607 1 0.023359 0.305362 0.00189 0 0.189725 0.026071 0.023359 0.305362 0.0191 43 0.197358 0 1.339893 0.00126 0 0.000733 Santa Clara 2025 LHDT1 Aggregate Aggregate Gasoline 19422.46 728337 728337 0 289365. 8 0.152112 0.035118 0.61458 0.001478 0 0.000276 0.002 0.0273 0.001607 0 0. 0003 0.008 0.078 855.4024 117.9783 25.70715 0.007214 0.110329 0.031611 0 .008613 0.002941 0.049929 0.03557 0.40247 0.15588 0.044275 0.247775 2.6 16411 0.051904 0.587284 0.170669 0.044275 0.247775 2.616411 0.044934 1. 05316 3.759094 3.16195 0.008457 0.001166 0.000254 Santa Clara 2025 LHDT1 Aggregate Aggregate Diesel 10387.1 408019.3 408019.3 0 130656 .7 1.379237 1.823414 0 0.032347 0.026692 0 0.003 0.0273 0.03381 0.027899 0 0.012 0.078 628.07 129.5472 0 0.007468 0.005098 0 0.098953 0.02041 0 0.160 779 0.10976 0000 0.183036 0.124954 0000 0.17898 0.435087 0.909745 0 0.005951 0.001228 0 Santa Clara 2025 LHDT1 Aggregate Aggregate Electricity 196.402 13079.06 0 13079.06 2 746.629 000000 0.002 0.01365 0 0 0 0.008 0.039 0000000000000000000000000000 Santa Clara 2025 LHDT2 Aggregate Aggregate Gasoline 2512.652 91345.05 91345.05 0 374 34.78 0.146187 0.034452 0.600885 0.001346 0 0.00022 0.002 0.03185 0.0014 64 0 0.000239 0.008 0.091 964.5764 136.4471 25.31105 0.005467 0.108422 0. 030581 0.008804 0.002854 0.048245 0.025115 0.395081 0.149459 0.041982 0 .228581 2.471298 0.036648 0.576501 0.163639 0.041982 0.228581 2.471298 0.044974 0.850878 3.765161 3.139903 0.009536 0.001349 0.00025 Santa Clara 2025 LHDT2 Aggregate Aggregate Diesel 4837.236 188645 188645 0 60846.34 1 .139289 1.802658 0 0.030296 0.027005 0 0.003 0.03185 0.031666 0.028226 0 0 .012 0.091 750.3571 207.2396 0 0.007043 0.005098 0 0.118219 0.032651 0 0.1 51622 0.10976 0000 0.172612 0.124954 0000 0.188496 0.387904 0.909745 0 0.00711 0.001964 0 Santa Clara 2025 LHDT2 Aggregate Aggregate Electricity 50.46202 3193.251 0 3193.251 669.175 000000 0.002 0.015925 0 0 0 0.008 0.0455 0000000000000000000000000000 Santa Clara 2025 MCY Aggregate Aggregate Gasoline 28484.89 166414.5 166414.5 0 56969 .79 0.557882 0 0.129146 0.001799 0 0.003253 0.001 0.0042 0.001925 0 0.0034 64 0.004 0.012 187.2679 0 47.30784 0.158292 0 0.177199 0.038984 0 0.007691 1.024683 0 1.305157 3.558651 3.760078 3.860886 1.236542 0 1.419098 3.558 651 3.760078 3.860886 0.008851 12.31202 0 7.965438 0.001851 0 0.000468 Santa Clara 2025 MDV Aggregate Aggregate Gasoline 159532.2 5551044 5551044 0 739781. 4 0.087905 0 0.391886 0.001179 0 0.001962 0.002 0.003182 0.001282 0 0.0021 34 0.008 0.009091 402.7635 0 103.4378 0.003431 0 0.094137 0.006921 0 0.039 073 0.014165 0 0.463643 0.092515 0.265086 1.620407 0.020668 0 0.50763 0.0 92515 0.265086 1.620407 0.036883 0.895922 0 3.753621 0.003982 0 0.001023 Santa Clara 2025 MDV Aggregate Aggregate Diesel 2421.364 85326.8 85326.8 0 11351.14 0 .044948 0 0 0.004686 0 0 0.002 0.003225 0.004898 0 0 0.008 0.009216 399.4952 0 0 0.000492 0 0 0.062941 0 0 0.010592 00000 0.012058 00000 0.0031 0.199936 0 0 0.003785 0 0 Santa Clara 2025 MDV Aggregate Aggregate Electricity 2274.547 77934.96 0 77934.96 11 571.06 000000 0.002 0.001526 0 0 0 0.008 0.004361 0000000000000000000000000000 Santa Clara 2025 MDV Aggregate Aggregate Plug‐in Hy b 1542.366 64484.39 29833.21 34651.18 6377.683 0.003036 0 0.11551 0.00050 7 0 0.00183 0.002 0.001388 0.000551 0 0.00199 0.008 0.003965 129.1743 0 91. 64114 0.000407 0 0.041816 0.00053 0 0.02018 0.001313 0 0.173285 0.02949 0. 025333 0.327899 0.001916 0 0.189725 0.02949 0.025333 0.327899 0.019431 0 .199968 0 1.339893 0.001277 0 0.000906 Santa Clara 2025 MH Aggregate Aggregate Gasoline 2337.876 21506.19 21506.19 0 233.88 12 0.37652 0 0.425905 0.001612 0 0.000388 0.003 0.015756 0.001753 0 0.0004 22 0.012 0.045017 1947.057 0 31.4529 0.013722 0 0.036945 0.023864 0 0.0453 03 0.059455 0 0.154277 11.38549 0.268831 4.357209 0.086757 0 0.168914 11. 38549 0.268831 4.357209 0.044879 1.426924 0 3.382931 0.019249 0 0.000311 Santa Clara 2025 MH Aggregate Aggregate Diesel 994.5437 9603.893 9603.893 0 99.45437 3.976372 0 0 0.086098 0 0 0.004 0.015675 0.08999 0 0 0.016 0.044785 1082.401 0 0 0.005421 0 0 0.170533 0 0 0.116701 00000 0.132856 00000 0.160635 0.385118 0 0 0.010256 0 0 Santa Clara 2025 MHDT Aggregate Aggregate Gasoline 1412.263 72039.87 72039.87 0 2825 6.55 0.394798 0.086175 0.424333 0.001347 0 0.000513 0.003 0.015756 0.001 465 0 0.000558 0.012 0.045017 1746.959 526.7233 45.37618 0.012585 0.2610 76 0.04598 0.019987 0.007219 0.032398 0.061949 1.015127 0.253154 0.0309 88 0.250472 2.558011 0.090397 1.481271 0.277172 0.030988 0.250472 2.558 011 0.044991 1.276089 15.1444 5.531626 0.01727 0.005207 0.000449 Santa Clara 2025 MHDT Aggregate Aggregate Diesel 10548.06 435100.6 435100.6 0 125915 .2 1.128155 12.48973 1.646559 0.012461 0.024792 0 0.003 0.015941 0.01302 4 0.025912 0 0.012 0.045545 1141.328 2229.374 0 0.00131 0.010957 0 0.17981 7 0.351239 0 0.028195 0.235896 0000 0.032098 0.268549 0000 0.211891 0.109646 7.535393 0 0.010808 0.021111 0 Santa Clara 2025 MHDT Aggregate Aggregate Electricity 90.80851 4838.906 0 4838.906 1 182.343 000000 0.003 0.007951 0 0 0 0.012 0.022718 0000000000000000000000000000 Santa Clara 2025 MHDT Aggregate Aggregate Natural Ga 98.90628 4590.307 4590.307 0 91 1.9208 0.12435 6.45266 0 0.001226 0.018594 0 0.003 0.016009 0.001333 0.02 0223 0 0.012 0.045741 979.0142 5290.545 0 0.751438 16.97256 0 0.199578 1.0 78512 0 0.010737 0.242504 0000 0.766898 17.32175 0000 1.06 2.996166 35.80775 0000 Santa Clara 2025 OBUS Aggregate Aggregate Gasoline 430.7023 18962.49 18962.49 0 8617 .491 0.460353 0.06398 0.405045 0.000939 0 0.000255 0.003 0.01568 0.00102 2 0 0.000278 0.012 0.044799 1744.286 377.0226 31.37018 0.012641 0.195762 0.035581 0.02242 0.005219 0.030806 0.061504 0.74652 0.188569 0.033827 0 .158433 2.881145 0.089747 1.089321 0.206459 0.033827 0.158433 2.881145 0.04498 1.352776 5.776073 3.953891 0.017244 0.003727 0.00031 Santa Clara 2025 OBUS Aggregate Aggregate Diesel 921.4116 62304.89 62304.89 0 9451.5 27 1.133246 7.151668 1.532624 0.018916 0.007596 0 0.003 0.018017 0.01977 2 0.007939 0 0.012 0.051478 1259.126 1532.11 0 0.001844 0.020685 0 0.19837 6 0.241385 0 0.039711 0.445333 0000 0.045208 0.506978 0000 0.216212 0.14449 7.587325 0 0.011923 0.014508 0 Santa Clara 2025 OBUS Aggregate Aggregate Electricity 2.672031 221.771 0 221.771 53. 46199 000000 0.003 0.00784 0 0 0 0.012 0.022399 0000000000000000000000000000 Santa Clara 2025 OBUS Aggregate Aggregate Natural Ga 8.125306 537.7468 537.7468 0 72 .31523 0.164816 1.526623 0 0.001183 0.004157 0 0.003 0.016148 0.001287 0. 004521 0 0.012 0.046137 987.912 1189.826 0 0.803903 4.103659 0 0.201392 0. 242554 0 0.011486 0.058633 0000 0.820442 4.188085 0000 1.06 3.29233 7.933419 0000 Santa Clara 2025 SBUS Aggregate Aggregate Gasoline 178.2436 8812.851 8812.851 0 712. 9742 0.487257 0.905562 0.722985 0.000866 0 0.000573 0.002 0.015721 0.000 942 0 0.000623 0.008 0.044917 806.3455 2576.863 57.67146 0.010523 2.4659 29 0.074733 0.026439 0.084425 0.066434 0.051046 10.63602 0.42511 0.1186 31 0.292211 1.797789 0.074486 15.52005 0.465442 0.118631 0.292211 1.797 789 0.045 1.308927 82.20747 10.20511 0.007972 0.025475 0.00057 Santa Clara 2025 SBUS Aggregate Aggregate Diesel 673.2048 15283.75 15283.75 0 9748.0 05 3.614242 21.25646 0.496308 0.018677 0.018235 0 0.003 0.015721 0.01952 1 0.019059 0 0.012 0.044917 1139.829 2219.616 0 0.002583 0.007936 0 0.1795 81 0.349701 0 0.055601 0.170862 0000 0.063298 0.194514 0000 0.151888 0.17348 4.777291 0 0.010794 0.021018 0 Santa Clara 2025 SBUS Aggregate Aggregate Electricity 4.481168 145.0761 0 145.0761 5 1.24766 000000 0.002556 0.00786 0 0 0 0.010226 0.022459 0000000000000000000000000000 Santa Clara 2025 SBUS Aggregate Aggregate Natural Ga 25.28439 627.586 627.586 0 366. 118 0.5494 5.260001 0 0.003378 0.011617 0 0.003 0.015721 0.003674 0.01263 5 0 0.012 0.044917 1252.115 4074.049 0 3.386209 15.12215 0 0.255252 0.8305 22 0 0.048382 0.216066 0000 3.455875 15.43326 0000 1.06 11.41153 21.33281 0000 Santa Clara 2025 UBUS Aggregate Aggregate Gasoline 46.21918 4826.658 4826.658 0 184. 8767 0.027276 0 0.449893 0.001143 0 0.000128 0.002 0.03185 0.001243 0 0.00 014 0.008 0.091 925.8676 0 36.64281 0.001993 0 0.043054 0.004259 0 0.07084 3 0.005515 0 0.152699 0.04366 0.092112 0.471505 0.008047 0 0.167186 0.043 66 0.092112 0.471505 0.045 0.586139 0 5.942314 0.009153 0 0.000362 Santa Clara 2025 UBUS Aggregate Aggregate Diesel 405.3675 44987.37 44987.37 0 1621.4 7 0.382968 0 0 0.006962 0 0 0.008238 0.0385 0.007277 0 0 0.032951 0.11 1121.8 75 0 0 0.003193 0 0 0.176752 0 0 0.06875 00000 0.078266 00000 0.22 0.0787 0 0 0.01063 0 0 Santa Clara 2025 UBUS Aggregate Aggregate Electricity 23.31202 2427.54 0 2427.54 93. 24809 000000 0.008977 0.01925 0 0 0 0.035907 0.055 0000000000000000000000000000 Santa Clara 2025 UBUS Aggregate Aggregate Natural Ga 58.16247 6762.418 6762.418 0 23 2.6499 0.060506 0 0 0.000287 0 0 0.008408 0.0385 0.0003 0 0 0.033634 0.11 131 7.877 0 0 4.320397 0 0 0.268658 0 0 0.06173 00000 4.409282 00000 0.97 50.3461 00000
Attachment 4: Project Construc tion Emissions and Health Risk Calculations
Y ear
Unmitigated
DPM
DPM
EMFAC2021
Unmitigated
E m i ssions
Unmitigated
Fug PM2.5
Fug PM2.5
EMFAC2021
Unmitigated
E m issi ons
2023 0.0035 0.0001 0.0036 0.0001 0.0001 0.0001
2024-2025 0.0206 0.0002 0.0208 0.0000 0.0002 0.0002
Y ear
Mitigated
DPM
DPM
EMFAC2021
Mitigated
E m i ssions
Mitigated
Fug PM2.5
Fug PM2.5
EMFAC2021
Mitigated
E m i ssions
2023 0.0003 0.0001 0.0003 0.00003 0.0001 0.0001
2024-2025 0.0014 0.0002 0.0016 0.0000 0.0002 0.0002
2655 The Alameda, Santa Clara, CA
2655 The Alameda, Santa Clara, CA
DPM Emissions and Modeling Emission Rates - Unmitigated DPM
Model ed Emi s s i on
Construction DPM Area DPM E missions Area Rate
Year Activity (ton/year) Source (lb/yr) (lb/hr) (g/s) (m 2 )( g / s / m
2 )
2023 Construction 0.0036 CON_DPM 7.1 0.00163 2.05E-04 1623 1.27E-07 2024-2025* Construction 0.0208 CON_DPM 41.7 0.00951 1.20E-03 1623 7.38E-07 Total 0.0244 48.8 0.0111 0.0014
* Includes 2025 (tw o months of construction)
Construction Hours
hr/day = 12 (6am - 6pm)
days/yr = 365
hours/year = 4380
DPM Construction Emissions and Modeling Emission Rates - With M itigation DPM
Model ed Emi s s i on
Construction DPM Area DPM E missions Area Rate
Year Activity (ton/year) Source (lb/yr) (lb/hr) (g/s) (m 2 )( g / s / m
2 )
2023 Construction 0.0003 CON_DPM 0.6 0.00015 1.83E-05 1623 1.13E-08 2024-2025* Construction 0.0016 CON_DPM 3.2 0.00074 9.30E-05 1623 5.73E-08 Total 0.0019 3.9 0.0009 0.0001
* Includes 2025 (tw o months of construction)
Construction Hours
hr/day = 12 (6am - 6pm)
days/yr = 365
hours/year = 4380
2655 The Alameda, Santa Clara, CA
PM2.5 Fugitive Dust Emissions for Modeling - Unmitigated PM2.5
Model ed Emi s s i on
Construction Area PM2.5 E missions Area Rate
Year Activity Source (ton/year) (lb/yr) (lb/hr) (g/s) (m 2 ) g/s/m
2 2023 Construction CON_FUG 0.0001 0.2 0.00006 7.13E-06 1,623 4.39E-09 2024-2025* Construction CON_FUG 0.0002 0.4 0.00010 1.28E-05 1,623 7.88E-09 Total 0.0003 0.7 0.0002 0.0000
* Includes 2025 (tw o months of construction)
Construction Hours
hr/day = 12 (6am - 6pm)
days/yr = 365
hours/year = 4380
PM2.5 Fugitive Dust Construction Emissions for Modeling - With Mitigation PM2.5
Model ed Emi s s i on
Construction Area PM2.5 E missions Area Rate
Year Activity Source (ton/year) (lb/yr) (lb/hr) (g/s) (m 2 ) g/s/m
2 2023 Construction CON_FUG 0.0001 0.2 0.00004 5.40E-06 1,623 3.33E-09 2024-2025* Construction CON_FUG 0.0002 0.4 0.00010 1.28E-05 1,623 7.88E-09 Total 0.0003 0.6 0.0001 0.0000
* Includes 2025 (tw o months of construction)
Construction Hours
hr/day = 12 (6am - 6pm)
days/yr = 365
hours/year = 4380
2655 The Alameda, Santa Clara, CA - Construction Health Impact Summary Maximum Impacts at MEI Residential Location - Without Mitigatio n Maximum Concentrations Maximum
Exhaust Fugitive Hazard Annual PM2.5
Emissions PM10/DPM PM2.5 Index Concentration
Year (μg/m
3 ) (μg/m
3 ) Infant/Child Adult (-) (μg/m
3 )
2023 0.0048 0.0002 0.86 0.01 0.001 0.01
2024-2025* 0.0279 0.0004 4.59 0.08 0.01 0.03
Total -- 5.44 0.09 --
Maximum 0.0279 0.0004 - - 0.01 0.03
* Includes 2025 (tw o months of construction)
Maximum Impacts at MEI Residential Location - With Mitigation Maximum Concentrations Maximum
Exhaust Fugitive Hazard Annual PM2.5
Emissions PM10/DPM PM2.5 Index Concentration
Year (μg/m
3 ) (μg/m
3 ) Infant/Child Adult (-) (μg/m
3 )
2023 0.0004 0.0002 0.08 0.001 0.0001 0.001
2024-2025* 0.0022 0.0004 0.36 0.01 0.0004 0.003
Total -- 0.43 0.01 --
Maximum 0.0022 0.0004 - - 0.0004 0.003
* Includes 2025 (tw o months of construction)
- Tier 4 Interim Engines and BMPs Mitigation
Maximum Impacts at Kids On Campus - Without Mitigation
Unmitigated Emissions
Maximum Concentrations Maximum
Exhaust Fugitive Child Hazard Annual PM2.5
Construction PM10/DPM PM2.5 Cancer Risk Index Concentration Year (μg/m
3 ) (μg/m
3 ) (p er million) (-) (μg/m
3 )
2023 0.0094 0.0005 3.39 0.002 0.01
2024-2025* 0.0545 0.0009 19.70 0.01 0.06
Total -- 23.09 --
Maximum 0.0545 0.0009 -0 . 0 10 . 0 6
* Includes 2025 (tw o months of construction)
Maximum Impacts at Kids On Campus - With Mitigation
Unmitigated Emissions
Maximum Concentrations Maximum
Exhaust Fugitive Child Hazard Annual PM2.5
Construction PM10/DPM PM2.5 Cancer Risk Index Concentration Year (μg/m
3 ) (μg/m
3 ) (p er million) (-) (μg/m
3 )
2023 0.0008 0.0004 0.30 0.0002 0.001
2024-2025* 0.0042 0.0009 1.53 0.001 0.01
Total -- 1.83 --
Maximum 0.0042 0.0009 - 0.001 0.01
* Includes 2025 (tw o months of construction)
- Tier 4 Interim Engines and BMPs Mitigation
Cancer Risk
(p er million)
Cancer Risk
(p er million)
2655 The Alameda, Santa Clara, CA- Construction Impacts - Witho ut Mitigation Maximum DPM Cancer Risk and PM2.5 Calculations From Constructio n Impacts at Kids On Campus (+6 weeks) - 1 meter - Child Exposure Student Cancer Risk (per million) = CPF x Inhalation Dose x ASF x ED/ A T x 1.0E6 Where: CPF = Cancer potency factor (mg/kg-day)
-1
ASF = Age sensitivity factor for specified age group
ED = Ex posure duration (years)
AT = Averaging time for lifetime cancer risk (years)
Inhalation Dose = C
air x SAF x 8-Hr BR x A x (EF/365) x 10
-6
Where: C air = concentration in air (μg/m
3 )
SCAF = School Child Adjustm ent Factor (unitless) for source operation and ex posures different than 8 hours/day
= (24/SHR) x (7days/SDay) x (SCHR/8 hrs)
SHR = Hours/day of em ission source operation
SDay = Number of days per week of source operation
SCHR = School operation hours while emission source in operatio n 8-Hr BR = E ight-hour breathing rate (L /kg body weight-per 8 hrs) A = Inhalation absorption factor
EF = Ex posure frequency (days/year)
10 -6
= Conversion factor
Values
Infant School Child
Age --> 0 - <2 2 - <16
Parameter
ASF = 10 3
DPM CPF = 1.10E+00 1.10E+00
8-Hr BR* = 1200 520
SCHR = 8 8
SHR = 12 12
SDay = 5 5
A = 1 1
EF = 250 250
AT = 70 70
SCAF = 2.80 2.80
* 95th percentile 8-hr breathing rates for moderate intensity act ivities Construction Cancer Risk by Year - Maximum Impact Receptor Loca tion Child - E xp osure Information Child
E xposure Age* Cancer
E xp osure Duration DPM Conc (ug/m3) Sensitiv ity Risk Hazard Fugitiv e To tal Y ear (years) Age Y ear Annual Factor (p er million) Ind ex PM 2.5 PM 2.5 1 1 0 - 1 2023 0.0094 10 3.39 0.002 0.0005 0.01
2 1 1 - 2 2024-2025** 0.0545 10 19.70 0.011 0.001 0.06
Total Increased Cancer Risk 23.09
* Children assumed to be 6 weeks and older with 2 years of Construction Exposure ** Includes 2025 (two months of construction)
Maxi mum
2655 The Alameda, Santa Clara, CA - Construction Impacts - With out Mitigation Maximum DPM Cancer Risk and PM2.5 Calculations From Constructio n Impacts at Off-Site Residential MEI Location - 1.5 meter recept or height (1st Floor Level) Cancer Ris k (per million) =CPF x Inhalation Dose x ASF x ED/AT x FAH x 1.0E6 Where: CPF = Cancer potency factor (mg/kg-day)
-1
ASF = Age sensitivity factor for specified age group
ED = Ex posure duration (years)
AT = Averaging time for lifetime cancer risk (years)
FAH = Fraction of tim e spent at hom e (unitless)
Inhalation Dose = C
air x DBR x A x (EF/365) x 10
-6
Where: C air = concentration in air (μg/m
3 )
DBR = daily breathing rate (L/kg body weight-day)
A = Inhalation absorption factor
EF = Ex posure frequency (days/year)
10 -6
= Conversion factor
Values
I nfant/Child Ad ult
Age --> 3rd Trimester 0 - 2 2 - 16 16 - 30
Parameter
ASF = 10 10 3 1
CPF = 1.10E+00 1.10E+00 1.10E+00 1.10E+00
DBR* = 361 1090 572 261
A = 1 1 1 1
EF = 350 350 350 350
AT = 70 70 70 70
FAH = 1.00 1.00 1.00 0.73
* 95th percentile breathing rates for infants and 80th percentile for children and adults Construction Cancer Risk by Year - Maximum Impact Receptor Loca tion Infant/Child - E xp osure Information Infant/Child Ad ult - E xp osure Information Adult E xposure Age Cancer Modeled Age Cancer Maximum
E xp osure Duration DPM Conc (ug/m3) Sensitiv ity Risk DPM Conc (ug/m3) Sensitiv ity Risk H azard Fugitiv e Total Year (years) Age Year Annual Factor (per m illion) Y ear A nnual Factor (per million) Index PM2.5 PM2.5 0 0.25 -0.25 - 0* 2023 0.0048 10 0.07 2023 0.0048 - -
1 1 0 - 1 2023 0.0048 10 0.79 2023 0.0048 1 0.01 0.001 0.0002 0.01 2 1 1 - 2 2024-2025** 0.0279 10 4.59 2024-2025** 0.0279 1 0.08 0.01 0.0004 0 .03 3 1 2 - 3 0.0000 3 0.00 0.0000 1 0.00
4 1 3 - 4 0.0000 3 0.00 0.0000 1 0.00
5 1 4 - 5 0.0000 3 0.00 0.0000 1 0.00
6 1 5 - 6 0.0000 3 0.00 0.0000 1 0.00
7 1 6 - 7 0.0000 3 0.00 0.0000 1 0.00
8 1 7 - 8 0.0000 3 0.00 0.0000 1 0.00
9 1 8 - 9 0.0000 3 0.00 0.0000 1 0.00
10 1 9 - 10 0.0000 3 0.00 0.0000 1 0.00
11 1 10 - 11 0.0000 3 0.00 0.0000 1 0.00
12 1 11 - 12 0.0000 3 0.00 0.0000 1 0.00
13 1 12 - 13 0.0000 3 0.00 0.0000 1 0.00
14 1 13 - 14 0.0000 3 0.00 0.0000 1 0.00
15 1 14 - 15 0.0000 3 0.00 0.0000 1 0.00
16 1 15 - 16 0.0000 3 0.00 0.0000 1 0.00
17 1 16-17 0.0000 1 0.00 0.0000 1 0.00
18 1 17-18 0.0000 1 0.00 0.0000 1 0.00
19 1 18-19 0.0000 1 0.00 0.0000 1 0.00
20 1 19-20 0.0000 1 0.00 0.0000 1 0.00
21 1 20-21 0.0000 1 0.00 0.0000 1 0.00
22 1 21-22 0.0000 1 0.00 0.0000 1 0.00
23 1 22-23 0.0000 1 0.00 0.0000 1 0.00
24 1 23-24 0.0000 1 0.00 0.0000 1 0.00
25 1 24-25 0.0000 1 0.00 0.0000 1 0.00
26 1 25-26 0.0000 1 0.00 0.0000 1 0.00
27 1 26-27 0.0000 1 0.00 0.0000 1 0.00
28 1 27-28 0.0000 1 0.00 0.0000 1 0.00
29 1 28-29 0.0000 1 0.00 0.0000 1 0.00
30 1 29-30 0.0000 1 0.00 0.0000 1 0.00
Total Increased Cancer Risk 5.44 0.09
* Third trimester of pregnancy
** Includes 2025 (tw o months of construction)
2655 The Alameda, Santa Clara, CA - Construction Impacts - With out Mitigation Maximum DPM Cancer Risk and PM2.5 Calculations From Constructio n Impacts at Off-Site Residential MEI Location - 4.5 meter recept or height (2nd Floor Level) Cancer Ris k (per million) =CPF x Inhalation Dose x ASF x ED/AT x FAH x 1.0E6 Where: CPF = Cancer potency factor (mg/kg-day)
-1
ASF = Age sensitivity factor for specified age group
ED = Ex posure duration (years)
AT = Averaging time for lifetime cancer risk (years)
FAH = Fraction of tim e spent at hom e (unitless)
Inhalation Dose = C
air x DBR x A x (EF/365) x 10
-6
Where: C air = concentration in air (μg/m
3 )
DBR = daily breathing rate (L/kg body weight-day)
A = Inhalation absorption factor
EF = Ex posure frequency (days/year)
10 -6
= Conversion factor
Values
I nfant/Child Ad ult
Age --> 3rd Trimester 0 - 2 2 - 16 16 - 30
Parameter
ASF = 10 10 3 1
CPF = 1.10E+00 1.10E+00 1.10E+00 1.10E+00
DBR* = 361 1090 572 261
A = 1 1 1 1
EF = 350 350 350 350
AT = 70 70 70 70
FAH = 1.00 1.00 1.00 0.73
* 95th percentile breathing rates for infants and 80th percentile for children and adults Construction Cancer Risk by Year - Maximum Impact Receptor Loca tion Infant/Child - E xp osure Information Infant/Child Ad ult - E xp osure Information Adult E xposure Age Cancer Modeled Age Cancer Maximum
E xp osure Duration DPM Conc (ug/m3) Sensitiv ity Risk DPM Conc (ug/m3) Sensitiv ity Risk H azard Fugitiv e Total Year (years) Age Year Annual Factor (per m illion) Y ear A nnual Factor (per million) Index PM2.5 PM2.5 0 0.25 -0.25 - 0* 2023 0.0042 10 0.06 2023 0.0042 - -
1 1 0 - 1 2023 0.0042 10 0.70 2023 0.0042 1 0.01 0.001 0.0002 0.004 2 1 1 - 2 2024-2025** 0.0247 10 4.05 2024-2025** 0.0247 1 0.07 0.005 0.0003 0.02 3 1 2 - 3 0.0000 3 0.00 0.0000 1 0.00
4 1 3 - 4 0.0000 3 0.00 0.0000 1 0.00
5 1 4 - 5 0.0000 3 0.00 0.0000 1 0.00
6 1 5 - 6 0.0000 3 0.00 0.0000 1 0.00
7 1 6 - 7 0.0000 3 0.00 0.0000 1 0.00
8 1 7 - 8 0.0000 3 0.00 0.0000 1 0.00
9 1 8 - 9 0.0000 3 0.00 0.0000 1 0.00
10 1 9 - 10 0.0000 3 0.00 0.0000 1 0.00
11 1 10 - 11 0.0000 3 0.00 0.0000 1 0.00
12 1 11 - 12 0.0000 3 0.00 0.0000 1 0.00
13 1 12 - 13 0.0000 3 0.00 0.0000 1 0.00
14 1 13 - 14 0.0000 3 0.00 0.0000 1 0.00
15 1 14 - 15 0.0000 3 0.00 0.0000 1 0.00
16 1 15 - 16 0.0000 3 0.00 0.0000 1 0.00
17 1 16-17 0.0000 1 0.00 0.0000 1 0.00
18 1 17-18 0.0000 1 0.00 0.0000 1 0.00
19 1 18-19 0.0000 1 0.00 0.0000 1 0.00
20 1 19-20 0.0000 1 0.00 0.0000 1 0.00
21 1 20-21 0.0000 1 0.00 0.0000 1 0.00
22 1 21-22 0.0000 1 0.00 0.0000 1 0.00
23 1 22-23 0.0000 1 0.00 0.0000 1 0.00
24 1 23-24 0.0000 1 0.00 0.0000 1 0.00
25 1 24-25 0.0000 1 0.00 0.0000 1 0.00
26 1 25-26 0.0000 1 0.00 0.0000 1 0.00
27 1 26-27 0.0000 1 0.00 0.0000 1 0.00
28 1 27-28 0.0000 1 0.00 0.0000 1 0.00
29 1 28-29 0.0000 1 0.00 0.0000 1 0.00
30 1 29-30 0.0000 1 0.00 0.0000 1 0.00
Total Increased Cancer Risk 4.80 0.08
* Third trimester of pregnancy
** Includes 2025 (tw o months of construction)
2655 The Alameda, Santa Clara, CA- Construction Impacts - With Mitigation Maximum DPM Cancer Risk and PM2.5 Calculations From Constructio n Impacts at Kids On Campus (+6 weeks) - 1 meter - Child Exposure Student Cancer Risk (per million) = CPF x Inhalation Dose x ASF x ED/ A T x 1.0E6 Where: CPF = Cancer potency factor (mg/kg-day)
-1
ASF = Age sensitivity factor for specified age group
ED = Ex posure duration (years)
AT = Averaging time for lifetime cancer risk (years)
Inhalation Dose = C
air x SAF x 8-Hr BR x A x (EF/365) x 10
-6
Where: C air = concentration in air (μg/m
3 )
SCAF = School Child Adjustm ent Factor (unitless) for source operation and ex posures different than 8 hours/day
= (24/SHR) x (7days/SDay) x (SCHR/8 hrs)
SHR = Hours/day of em ission source operation
SDay = Number of days per week of source operation
SCHR = School operation hours while emission source in operatio n 8-Hr BR = E ight-hour breathing rate (L /kg body weight-per 8 hrs) A = Inhalation absorption factor
EF = Ex posure frequency (days/year)
10 -6
= Conversion factor
Values
Infant School Child
Age --> 0 - <2 2 - <16
Parameter
ASF = 10 3
DPM CPF = 1.10E+00 1.10E+00
8-Hr BR* = 1200 520
SCHR = 8 8
SHR = 12 12
SDay = 5 5
A = 1 1
EF = 250 250
AT = 70 70
SAF = 2.80 2.80
* 95th percentile 8-hr breathing rates for moderate intensity act ivities Construction Cancer Risk by Year - Maximum Impact Receptor Loca tion Child - E xp osure Information Child
E xposure Age* Cancer
E xp osure Duration DPM Conc (ug/m3) Sensitiv ity Risk Hazard Fugitiv e To tal Y ear (years) Age Y ear Annual Factor (p er million) Ind ex PM 2.5 PM 2.5 1 1 0 - 1 2023 0.0008 10 0.30 0.0002 0.0004 0.001
2 1 1 - 2 2024-2025** 0.0042 10 1.53 0.001 0.001 0.01
Total Increased Cancer Risk 1.83
* Children assumed to be 6 weeks and older with 2 years of Construction Exposure ** Includes 2025 (two months of construction)
Maxi mum
2655 The Alameda, Santa Clara, CA - Construction Impacts - With Mitigation Maximum DPM Cancer Risk and PM2.5 Calculations From Constructio n Impacts at Off-Site Residential MEI Location - 1.5 meter recept or height (1st Floor Level) Cancer Ris k (per million) =CPF x Inhalation Dose x ASF x ED/AT x FAH x 1.0E6 Where: CPF = Cancer potency factor (mg/kg-day)
-1
ASF = Age sensitivity factor for specified age group
ED = Ex posure duration (years)
AT = Averaging time for lifetime cancer risk (years)
FAH = Fraction of tim e spent at hom e (unitless)
Inhalation Dose = C
air x DBR x A x (EF/365) x 10
-6
Where: C air = concentration in air (μg/m
3 )
DBR = daily breathing rate (L/kg body weight-day)
A = Inhalation absorption factor
EF = Ex posure frequency (days/year)
10 -6
= Conversion factor
Values
I nfant/Child Ad ult
Age --> 3rd Trimester 0 - 2 2 - 16 16 - 30
Parameter
ASF = 10 10 3 1
CPF = 1.10E+00 1.10E+00 1.10E+00 1.10E+00
DBR* = 361 1090 572 261
A = 1 1 1 1
EF = 350 350 350 350
AT = 70 70 70 70
FAH = 1.00 1.00 1.00 0.73
* 95th percentile breathing rates for infants and 80th percentile for children and adults Construction Cancer Risk by Year - Maximum Impact Receptor Loca tion Infant/Child - E xp osure Information Infant/Child Ad ult - E xp osure Information Adult E xposure Age Cancer Modeled Age Cancer Maximum
E xp osure Duration DPM Conc (ug/m3) Sensitiv ity Risk DPM Conc (ug/m3) Sensitiv ity Risk H azard Fugitiv e Total Year (years) Age Year Annual Factor (per m illion) Y ear A nnual Factor (per million) Index PM2.5 PM2.5 0 0.25 -0.25 - 0* 2023 0.0004 10 0.01 2023 0.0004 - -
1 1 0 - 1 2023 0.0004 10 0.07 2023 0.0004 1 0.00 0.0001 0.0002 0.001 2 1 1 - 2 2024-2025** 0.0022 10 0.36 2024-2025** 0.0022 1 0.01 0.0004 0.000 40 . 0 0 3 3 1 2 - 3 0.0000 3 0.00 0.0000 1 0.00
4 1 3 - 4 0.0000 3 0.00 0.0000 1 0.00
5 1 4 - 5 0.0000 3 0.00 0.0000 1 0.00
6 1 5 - 6 0.0000 3 0.00 0.0000 1 0.00
7 1 6 - 7 0.0000 3 0.00 0.0000 1 0.00
8 1 7 - 8 0.0000 3 0.00 0.0000 1 0.00
9 1 8 - 9 0.0000 3 0.00 0.0000 1 0.00
10 1 9 - 10 0.0000 3 0.00 0.0000 1 0.00
11 1 10 - 11 0.0000 3 0.00 0.0000 1 0.00
12 1 11 - 12 0.0000 3 0.00 0.0000 1 0.00
13 1 12 - 13 0.0000 3 0.00 0.0000 1 0.00
14 1 13 - 14 0.0000 3 0.00 0.0000 1 0.00
15 1 14 - 15 0.0000 3 0.00 0.0000 1 0.00
16 1 15 - 16 0.0000 3 0.00 0.0000 1 0.00
17 1 16-17 0.0000 1 0.00 0.0000 1 0.00
18 1 17-18 0.0000 1 0.00 0.0000 1 0.00
19 1 18-19 0.0000 1 0.00 0.0000 1 0.00
20 1 19-20 0.0000 1 0.00 0.0000 1 0.00
21 1 20-21 0.0000 1 0.00 0.0000 1 0.00
22 1 21-22 0.0000 1 0.00 0.0000 1 0.00
23 1 22-23 0.0000 1 0.00 0.0000 1 0.00
24 1 23-24 0.0000 1 0.00 0.0000 1 0.00
25 1 24-25 0.0000 1 0.00 0.0000 1 0.00
26 1 25-26 0.0000 1 0.00 0.0000 1 0.00
27 1 26-27 0.0000 1 0.00 0.0000 1 0.00
28 1 27-28 0.0000 1 0.00 0.0000 1 0.00
29 1 28-29 0.0000 1 0.00 0.0000 1 0.00
30 1 29-30 0.0000 1 0.00 0.0000 1 0.00
Total Increased Cancer Risk 0.43 0.01
* Third trimester of pregnancy
** Includes 2025 (tw o months of construction)
2655 The Alameda, Santa Clara, CA - Construction Impacts - With Mitigation Maximum DPM Cancer Risk and PM2.5 Calculations From Constructio n Impacts at Off-Site Residential MEI Location - 4.5 meter recept or height (2nd Floor Level) Cancer Ris k (per million) =CPF x Inhalation Dose x ASF x ED/AT x FAH x 1.0E6 Where: CPF = Cancer potency factor (mg/kg-day)
-1
ASF = Age sensitivity factor for specified age group
ED = Ex posure duration (years)
AT = Averaging time for lifetime cancer risk (years)
FAH = Fraction of tim e spent at hom e (unitless)
Inhalation Dose = C
air x DBR x A x (EF/365) x 10
-6
Where: C air = concentration in air (μg/m
3 )
DBR = daily breathing rate (L/kg body weight-day)
A = Inhalation absorption factor
EF = Ex posure frequency (days/year)
10 -6
= Conversion factor
Values
I nfant/Child Ad ult
Age --> 3rd Trimester 0 - 2 2 - 16 16 - 30
Parameter
ASF = 10 10 3 1
CPF = 1.10E+00 1.10E+00 1.10E+00 1.10E+00
DBR* = 361 1090 572 261
A = 1 1 1 1
EF = 350 350 350 350
AT = 70 70 70 70
FAH = 1.00 1.00 1.00 0.73
* 95th percentile breathing rates for infants and 80th percentile for children and adults Construction Cancer Risk by Year - Maximum Impact Receptor Loca tion Infant/Child - E xp osure Information Infant/Child Ad ult - E xp osure Information Adult E xposure Age Cancer Modeled Age Cancer Maximum
E xp osure Duration DPM Conc (ug/m3) Sensitiv ity Risk DPM Conc (ug/m3) Sensitiv ity Risk H azard Fugitiv e Total Year (years) Age Year Annual Factor (per m illion) Y ear A nnual Factor (per million) Index PM2.5 PM2.5 0 0.25 -0.25 - 0* 2023 0.0004 10 0.01 2023 0.0004 - -
1 1 0 - 1 2023 0.0004 10 0.06 2023 0.0004 1 0.00 0.0001 0.0001 0.001 2 1 1 - 2 2024-2025** 0.0019 10 0.31 2024-2025** 0.0019 1 0.01 0.0004 0.000 30 . 0 0 2 3 1 2 - 3 0.0000 3 0.00 0.0000 1 0.00
4 1 3 - 4 0.0000 3 0.00 0.0000 1 0.00
5 1 4 - 5 0.0000 3 0.00 0.0000 1 0.00
6 1 5 - 6 0.0000 3 0.00 0.0000 1 0.00
7 1 6 - 7 0.0000 3 0.00 0.0000 1 0.00
8 1 7 - 8 0.0000 3 0.00 0.0000 1 0.00
9 1 8 - 9 0.0000 3 0.00 0.0000 1 0.00
10 1 9 - 10 0.0000 3 0.00 0.0000 1 0.00
11 1 10 - 11 0.0000 3 0.00 0.0000 1 0.00
12 1 11 - 12 0.0000 3 0.00 0.0000 1 0.00
13 1 12 - 13 0.0000 3 0.00 0.0000 1 0.00
14 1 13 - 14 0.0000 3 0.00 0.0000 1 0.00
15 1 14 - 15 0.0000 3 0.00 0.0000 1 0.00
16 1 15 - 16 0.0000 3 0.00 0.0000 1 0.00
17 1 16-17 0.0000 1 0.00 0.0000 1 0.00
18 1 17-18 0.0000 1 0.00 0.0000 1 0.00
19 1 18-19 0.0000 1 0.00 0.0000 1 0.00
20 1 19-20 0.0000 1 0.00 0.0000 1 0.00
21 1 20-21 0.0000 1 0.00 0.0000 1 0.00
22 1 21-22 0.0000 1 0.00 0.0000 1 0.00
23 1 22-23 0.0000 1 0.00 0.0000 1 0.00
24 1 23-24 0.0000 1 0.00 0.0000 1 0.00
25 1 24-25 0.0000 1 0.00 0.0000 1 0.00
26 1 25-26 0.0000 1 0.00 0.0000 1 0.00
27 1 26-27 0.0000 1 0.00 0.0000 1 0.00
28 1 27-28 0.0000 1 0.00 0.0000 1 0.00
29 1 28-29 0.0000 1 0.00 0.0000 1 0.00
30 1 29-30 0.0000 1 0.00 0.0000 1 0.00
Total Increased Cancer Risk 0.38 0.01
* Third trimester of pregnancy
** Includes 2025 (tw o months of construction)
Attachment 5: Community Risk Modeling Information and Calculat ions
CT-EMFAC2017 Emissions Factors for Santa Clara County 2023
File Name: 2655 The Alameda ‐ Santa Clara (SF) ‐ 2023 ‐ Annual. EF CT‐EMFAC2017 Version: 1.0.2.27401
Run Date:
Area: Santa Clara (SF)
Analysis Year: 2023
Season: Annual
======================================================================= Vehicle Category
VMT
Fraction
Diesel VMT
Fraction
Gas VMT
Fraction
Across
Category
Within
Category
Within
Category
Truck 1 0.015 0.487 0.513
Truck 2 0.02 0.938 0.047
Non‐Truck 0.965 0.014 0.958
======================================================================= Road Type: Major/Collector
Silt Loading Factor: CARB 0.032 g/m2
Precipitation Correction: CARB P = 64 days N = 365 days ======================================================================= Fleet Average Running Exhaust Emission Factors (grams/veh‐mile) Pollutant Name <= 5 mp
h 10 mph 15 mph 20 mph 25 mph 30 mph 35 mph 40 mph 45 mph PM2.5 0.009229 0.005981 0.004054 0.002896 0.002194 0. 001765 0.001511 0.001375 0.001329 TOG 0.195764 0.127928 0.086105 0.061055 0.046181 0. 036838 0.030861 0.027137 0.025044 Diesel PM 0.000904 0.000732 0.000563 0.000446 0.000382 0. 000353 0.00035 0.00037 0.000411 ======================================================================= Fleet Average Running Loss Emission Factors (grams/veh‐hour) Pollutant Name Emission Factor
TOG 1.35761
======================================================================= Fleet Average Tire Wear Factors (grams/veh‐mile)
Pollutant Name Emission Factor
PM2.5 0.002108
======================================================================= Fleet Average Brake Wear Factors (grams/veh‐mile)
Pollutant Name Emission Factor
PM2.5 0.016808
======================================================================= Fleet Average Road Dust Factors (grams/veh‐mile)
Pollutant Name Emission Factor
PM2.5 0.014855
=============================END======================================= 9/8/2022 14:00
El Camino Real Traffic Emissions and Health Risk Calculations 2023
Analysis Year = 2023
2019 Caltrans 2023
Vehicle Vehicles Vehicles
Type (veh/day) (veh/day)
Total 22,390 23,286
1.04 Vehicles/Direction 11,643
Avg Vehicles/Hour/Direction 485
Traffic Data Year = 2019
Project Traffic Data ‐ Existing ADT Total
AADT Tota l Truck
The Alameda and C ampbell 22,390 786
Percent of Total Vehi cl es 3.51%
1.00%
Increase From 2019
Traffic Increase per Year (%) =
2655 The Alameda, Santa Clara, CA ‐ Offsite Residential Roadway Modeling Cumulative Operation ‐ El Camino Real
DPM Modeling ‐ Roadway Links, Traffic Volumes, and DPM Emissions Year = 2023
Road Link Description Direction No. Lanes
Link
Length
(m)
Link
Length
(mi)
Link
Width
(m)
Link
Width
(ft)
Release
Height
( m)
Average
Speed
(mph)
Average
Vehicles
per Day
DPM_ECR
El Camino Real
Northbound/Southbound NB/SB 6 91.6 0.06 27.9 91.7 3.4 35 23,286 Emission Factors ‐ DPM
Speed Category 12 3 4
Travel Speed (mph) 35
Emissions per Vehicle (g/VMT) 0.00035
Emisson Factors from CT‐EMFAC2017
2023 Hourly Traffic Volumes and DPM Emissions ‐ DPM_ECR Hour
% Per
Hour VPH g/s Hour
% Per
Hour VPH g/s Hour
% Per
Hour VPH g/s
1 3.91% 911 5.04E‐06 9 6.50% 1513 8.37E‐06 17 5.58% 1299 7.19E‐06 2 2.59% 603 3.33E‐06 10 7.36% 1714 9.48E‐06 18 3.28% 763 4.22E‐06 3 2.88% 670 3.70E‐06 11 6.33% 1473 8.15E‐06 19 2.36% 549 3.04E‐06 4 3.34% 777 4.30E‐06 12 6.84% 1593 8.82E‐06 20 0.92% 214 1.19E‐06 5 2.19% 509 2.82E‐06 13 6.15% 1433 7.93E‐06 21 2.99% 696 3.85E‐06 6 3.39% 790 4.37E‐06 14 6.15% 1433 7.93E‐06 22 4.14% 964 5.33E‐06 7 5.98% 1393 7.71E‐06 15 5.23% 1219 6.74E‐06 23 2.47% 576 3.19E‐06 8 4.66% 1085 6.00E‐06 16 3.91% 911 5.04E‐06 24 0.86% 201 1.11E‐06 Total 23,286
2655 The Alameda, Santa Clara, CA ‐ Offsite Residential Roadway Modeling Cumulative Operation ‐ El Camino Real
PM2.5 Modeling ‐ Roadway Links, Traffic Volumes, and PM2.5 Emissions Year = 2023
Road Link Description Direction No. Lanes
Link
Length
(m)
Link
Length
(mi)
Link
Width
(m)
Link
Width
(ft)
Release
Height
( m)
Average
Speed
(mph)
Average
Vehicles
per Day
PM25_ECR
El Cami no Real
Northbound/Southbound NB/SB 6 91.6 0.06 27.9 92 1.3 35 23,286 Emission Factors ‐ PM2.5
Speed Category 12 3 4
Travel Speed (mph) 35
Emissions per Vehicle (g/VMT) 0.001511
Emisson Factors from CT‐EMFAC2017
2023 Hourly Traffic Volumes and PM2.5 Emissions ‐ PM25_ECR Hour % Per Hour VPH g/s Hour
% Per
Hour VPH g/s Hour
% Per
Hour VPH g/s
1 1.15% 268 6.41E‐06 9 7.11% 1656 3.96E‐05 17 7.38% 1720 4.11E‐05 2 0.42% 97 2.32E‐06 10 4.39% 1023 2.44E‐05 18 8.17% 1903 4.55E‐05 3 0.41% 95 2.27E‐06 11 4.66% 1086 2.59E‐05 19 5.70% 1326 3.17E‐05 4 0.26% 61 1.46E‐06 12 5.89% 1371 3.28E‐05 20 4.27% 995 2.38E‐05 5 0.50% 117 2.78E‐06 13 6.15% 1432 3.42E‐05 21 3.26% 759 1.81E‐05 6 0.90% 211 5.03E‐06 14 6.04% 1406 3.36E‐05 22 3.30% 768 1.83E‐05 7 3.79% 883 2.11E‐05 15 7.01% 1633 3.90E‐05 23 2.46% 573 1.37E‐05 8 7.76% 1808 4.32E‐05 16 7.14% 1661 3.97E‐05 24 1.86% 434 1.04E‐05 Total 23,286
2655 The Alameda, Santa Clara, CA ‐ Offsite Residential Roadway Modeling Cumulative Operation ‐ El Camino Real
TOG Exhaust Modeling ‐ Roadway Links, Traffic Volumes, and TOG Exhaust Emissions Year = 2023
Road Link Description Direction
No.
Lanes
Link
Length
(m)
Link
Length
(mi)
Link
Width
(m)
Link
Width
(ft)
Release
Height
( m)
Average
Speed
(mph)
Average
Vehicles
per Day
TEXH_ECR
El Cami no Real
Northbound/Southbound NB/SB 6 91.6 0.06 27.9 92 1.3 35 23,286 Emission Factors ‐ TOG Exhaust
Speed Category 12 3 4
Travel Speed (mph) 35
Emissions per Vehicle (g/VMT) 0.03086
Emisson Factors from CT‐EMFAC2017
2023 Hourly Traffic Volumes and TOG Exhaust Emissions ‐ TEXH_ECR Hour
% Per
Hour VPH g/s Hour
% Per
Hour VPH g/s Hour
% Per
Hour VPH g/s
1 1.15% 268 1.31E‐04 9 7.11% 1656 8.08E‐04 17 7.38% 1720 8.39E‐04 2 0.42% 97 4.74E‐05 10 4.39% 1023 4.99E‐04 18 8.17% 1903 9.28E‐04 3 0.41% 95 4.63E‐05 11 4.66% 1086 5.30E‐04 19 5.70% 1326 6.47E‐04 4 0.26% 61 2.99E‐05 12 5.89% 1371 6.69E‐04 20 4.27% 995 4.86E‐04 5 0.50% 117 5.69E‐05 13 6.15% 1432 6.99E‐04 21 3.26% 759 3.70E‐04 6 0.90% 211 1.03E‐04 14 6.04% 1406 6.86E‐04 22 3.30% 768 3.75E‐04 7 3.79% 883 4.31E‐04 15 7.01% 1633 7.97E‐04 23 2.46% 573 2.79E‐04 8 7.76% 1808 8.82E‐04 16 7.14% 1661 8.11E‐04 24 1.86% 434 2.12E‐04 Total 23,286
2655 The Alameda, Santa Clara, CA ‐ Offsite Residential Roadway Modeling Cumulative Operation ‐ El Camino Real
TOG Evaporative Emissions Modeling ‐ Roadway Links, Traffic Volumes, and TOG Evaporative Emissions Year = 2023
Road Link Description Direction
No.
Lanes
Link
Length
(m)
Link
Length
(mi)
Link
Width
(m)
Link
Width
(ft)
Release
Height
( m)
Average
Speed
(mph)
Average
Vehicles
per Day
TEVAP_ECR
El Cami no Real
Northbound/Southbound NB/SB 6 91.6 0.06 27.9 92 1.3 35 23,286 Emission Factors ‐ PM2.5 ‐ Evaporative TOG
Speed Category 1 234
Travel Speed (mph) 35
Emissions per Vehicle per Hour (g/hour) 1.35761
Emissions per Vehicle per Mile (g/VMT) 0.03879
E misson Factors f rom CT ‐ E M FA C2017
2023 Hourly Traffic Volumes and TOG Evaporative Emissions ‐ TEVAP_ECR Hour
% Per
Hour VPH g/s Hour
% Per
Hour VPH g/s Hour
% Per
Hour VPH g/s
1 1.15% 268 1.64E‐04 9 7.11% 1656 1.02E‐03 17 7.38% 1720 1.05E‐03 2 0.42% 97 5.96E‐05 10 4.39% 1023 6.27E‐04 18 8.17% 1903 1.17E‐03 3 0.41% 95 5.82E‐05 11 4.66% 1086 6.66E‐04 19 5.70% 1326 8.13E‐04 4 0.26% 61 3.76E‐05 12 5.89% 1371 8.41E‐04 20 4.27% 995 6.10E‐04 5 0.50% 117 7.15E‐05 13 6.15% 1432 8.78E‐04 21 3.26% 759 4.65E‐04 6 0.90% 211 1.29E‐04 14 6.04% 1406 8.62E‐04 22 3.30% 768 4.71E‐04 7 3.79% 883 5.42E‐04 15 7.01% 1633 1.00E‐03 23 2.46% 573 3.51E‐04 8 7.76% 1808 1.11E‐03 16 7.14% 1661 1.02E‐03 24 1.86% 434 2.66E‐04 Total 23,286
2655 The Alameda, Santa Clara, CA ‐ Offsite Residential Roadway Modeling Cumulative Operation ‐ El Camino Real
Fugitive Road PM2.5 Modeling ‐ Roadway Links, Traffic Volumes, and Fugitive Road PM2.5 Emissions Year = 2023
Road Link Description Direction
No.
Lanes
Link
Length
(m)
Link
Length
(mi)
Link
Width
(m)
Link
Width
(ft)
Release
Height
( m)
Average
Speed
(mph)
Average
Vehicles
per Day
FUG_ECR
El Cami no Real
Northbound/Southbound NB/SB 6 91.6 0.06 27.9 92 1.3 35 23,286 Emission Factors ‐ Fugitive PM2.5
Speed Category 1 234
Travel Speed (mph) 35
Tire Wear ‐ Emissions per Vehicle (g/VMT) 0.00211
Brake Wear ‐ Emissions per Vehicle (g/VMT) 0.01681
Road Dust ‐ Emissions per Vehicle (g/VMT) 0.01486
Total Fugitive PM2.5 ‐ Emissions per Vehicle (g/VMT) 0.03377 E misson Factors f rom CT ‐E M FA C2017
2023 Hourly Traffic Volumes and Fugitive PM2.5 Emissions ‐ FUG_ECR Hour
% Per
Hour VPH g/s Hour
% Per
Hour VPH g/s Hour
% Per
Hour VPH g/s
1 1.15% 268 1.43E‐04 9 7.11% 1656 8.84E‐04 17 7.38% 1720 9.18E‐04 2 0.42% 97 5.19E‐05 10 4.39% 1023 5.46E‐04 18 8.17% 1903 1.02E‐03 3 0.41% 95 5.07E‐05 11 4.66% 1086 5.80E‐04 19 5.70% 1326 7.08E‐04 4 0.26% 61 3.27E‐05 12 5.89% 1371 7.32E‐04 20 4.27% 995 5.31E‐04 5 0.50% 117 6.22E‐05 13 6.15% 1432 7.65E‐04 21 3.26% 759 4.05E‐04 6 0.90% 211 1.12E‐04 14 6.04% 1406 7.51E‐04 22 3.30% 768 4.10E‐04 7 3.79% 883 4.72E‐04 15 7.01% 1633 8.72E‐04 23 2.46% 573 3.06E‐04 8 7.76% 1808 9.65E‐04 16 7.14% 1661 8.87E‐04 24 1.86% 434 2.32E‐04 Total 23,286
2655 The Alameda, Santa Clara, CA - El Camino Real Traffic - TACs & PM2.5 AERMOD Risk Modeling Parameters and Maximum Concentrations at Preschool MEI Receptor, 1 m receptor height
E m ission Y ear 2023
Receptor Information Preschool MEI receptor
Number of Receptors 1
Receptor Height 1 meter
Receptor Distances At Preschool MEI location
Meteorological Conditions
BAQMD San Jose Airport Met Data 2013-2017
L and Use C lassi ficati on Urban
Wind Speed V ariable
Wind Direction V ariable
Preschool MEI Cancer Risk Maximum Concentrations
Meteorological
Data Years DPM Exhaust TOG Evaporative TOG
2013-2017 0.00003 0.0016 0.0020
Preschool MEI PM2.5 Maximum Concentrations
Meteorological
Data Y ears Total PM 2.5 Fugitiv e PM 2.5 Vehicle PM 2.5 2013-2017 0.0019 0.0018 0.0001
Concentration (μg/m3)
PM2.5 Concentration (μg/m3)
2655 The Alameda, Santa Clara, CA - El Camino Real Cancer Risk & PM2.5 Impacts at Preschool MEI - 1 meter receptor height
6 Year Preschool Exposure
Cancer Risk Calculation Method
Cancer Risk (per million) = CPF x Inhalation Dose x ASF x ED/AT x SCA F x 1.0E6 Where: CPF = Cancer potency factor (m g/kg-day)
-1
ASF = Age sensitivity factor for specified age group
E D = Ex posure duration (years)
AT = Averaging time for lifetime cancer risk (years)
SCAF = School Child Adjustm ent Factor (unitless) for source operation and ex posures different than 8 hours/day
Inhalation Dose = C
air x SAF x 8-Hr BR x A x (EF/365) x 10
-6
Where: C air = concentration in air (μg/m
3 )
8-Hr BR = Eight-hour breathing rate (L/kg body weight-per 8 hrs) A = Inhalation absorption factor
EF = Ex posure frequency (days/year)
10 -6
= Conversion factor
Cancer Potency Factors (mg/kg-day)
-1
CPF
1.10E+00
V ehicle TOG Ex haust 6.28E-03
V ehicle TOG Evaporative 3.70E-04
Values
Infant/Child Ad ult
Age --> 3rd Trimester 0 - 2 2 - 16 16 - 30
Parameter
ASF = 10 10 3 1
8-Hr BR* = 1200 1200 250 261
A = 1 1 1 1
EF = 250 250 250 250
AT = 70 70 70 70
SCAF = 2.80 2.80 2.80 0.73
* 95th percentile 8-hr breathing rates for moderate intensity act ivities Construction Cancer Risk by Year - Maximum Impact Receptor Loca tion Expos u r e
E xposure Duration DPM
E xhaust
TOG
Evaporative
TOG DPM
Year (years) Age
1 1 0 - 1 10 0.00003 0.0016 0.0020 0.011 0.003 0.0002 0.01 Hazard
Index
Fugitive
PM2.5
Total
PM2.5
2 1 1 - 2 10 0.00003 0.0016 0.0020 0.011 0.003 0.0002 0.01 0.00001 0.002 0.0 02 3 1 2 - 3 3 0.00003 0.0016 0.0020 0.001 0.0002 0.00002 0.001 4 1 3 - 4 3 0.00003 0.0016 0.0020 0.001 0.0002 0.00002 0.001 5 1 4 - 5 3 0.00003 0.0016 0.0020 0.001 0.0002 0.00002 0.001 6 1 5 - 6 3 0.00003 0.0016 0.0020 0.001 0.0002 0.00002 0.001 Total Increased Cancer Risk 0.02 0.01 0.001 0.03
* Children assumed to be 6 weeks through 6 years with 6 years of Roadway Exposure 2028
Maximum
2023
2024
2025
TOTAL
Year
Exhaust
TOG
Evaporative
TOG
Concentration (ug/m3) Cancer Risk (p er million)
TAC
DPM
Maximum - Expos ure Information
2027
2026
Age
Sensitiv ity
Factor
CT-EMFAC2017 Emissions Factors for Santa Clara County 2025
File Name: 2655 The Alameda ‐ Santa Clara (SF) ‐ 2023 ‐ Annual. EF CT‐EMFAC2017 Version: 1.0.2.27401
Run Date:
Area: Santa Clara (SF)
Analysis Year: 2025
Season: Annual
======================================================================= Vehicle Category
VMT
Fraction
Diesel VMT
Fraction
Gas VMT
Fraction
Across
Category
Within
Category
Within
Category
Truck 1 0.015 0.502 0.498
Truck 2 0.02 0.936 0.048
Non‐Truck 0.965 0.015 0.951
======================================================================= Road Type: Major/Collector
Silt Loading Factor: CARB 0.032 g/m2
Precipitation Correction: CARB P = 64 days N = 365 days ======================================================================= Fleet Average Running Exhaust Emission Factors (grams/veh‐mile) Pollutant Name <= 5 mp
h 10 mph 15 mph 20 mph 25 mph 30 mph 35 mph 40 mph 45 mph PM2.5 0.008489 0.005501 0.00373 0.002665 0.00202 0.00 1628 0.001397 0.001277 0.00124 TOG 0.172619 0.113109 0.076066 0.0539 0.040836 0.03 264 0.027389 0.02411 0.022258 Diesel PM 0.000788 0.00065 0.000505 0.000405 0.00035 0.00 0326 0.000328 0.000351 0.000395 ======================================================================= Fleet Average Running Loss Emission Factors (grams/veh‐hour) Pollutant Name Emission Factor
TOG 1.255395
======================================================================= Fleet Average Tire Wear Factors (grams/veh‐mile)
Pollutant Name Emission Factor
PM2.5 0.002108
======================================================================= Fleet Average Brake Wear Factors (grams/veh‐mile)
Pollutant Name Emission Factor
PM2.5 0.016801
======================================================================= Fleet Average Road Dust Factors (grams/veh‐mile)
Pollutant Name Emission Factor
PM2.5 0.014826
=============================END======================================= 9/8/2022 14:07
El Camino Real Traffic Emissions and Health Risk Calculations 2025
Analysis Year = 2025
2019 Caltrans 2025
Vehicle Vehicles Vehicles
Type (veh/day) (veh/day)
Total 22,390 23,733
1.06 Vehicles/Direction 11,867
Avg Vehicles/Hour/Direction 494
Traffic Data Year = 2019
Project Traffic Data ‐ Existing ADT Total
AADT Tota l Truck
The Alameda and C ampbell 22,390 786
Percent of Total Vehi cl es 3.51%
1.00%
Increase From 2019
Traffic Increase per Year (%) =
2655 The Alameda, Santa Clara, CA ‐ Offsite Residential Roadway Modeling Cumulative Operation ‐ El Camino Real
DPM Modeling ‐ Roadway Links, Traffic Volumes, and DPM Emissions Year = 2025
Road Link Description Direction No. Lanes
Link
Length
(m)
Link
Length
(mi)
Link
Width
(m)
Link
Width
(ft)
Release
Height
( m)
Average
Speed
(mph)
Average
Vehicles
per Day
DPM_ECR
El Camino Real
Northbound/Southbound NB/SB 6 91.6 0.06 27.9 91.7 3.4 35 23,733 Emission Factors ‐ DPM
Speed Category 12 3 4
Travel Speed (mph) 35
Emissions per Vehicle (g/VMT) 0.00033
Emisson Factors from CT‐EMFAC2017
2025 Hourly Traffic Volumes and DPM Emissions ‐ DPM_ECR Hour
% Per
Hour VPH g/s Hour
% Per
Hour VPH g/s Hour
% Per
Hour VPH g/s
1 3.93% 933 4.84E‐06 9 6.41% 1521 7.89E‐06 17 5.55% 1317 6.83E‐06 2 2.62% 622 3.22E‐06 10 7.36% 1747 9.06E‐06 18 3.16% 750 3.89E‐06 3 2.85% 676 3.51E‐06 11 6.34% 1505 7.80E‐06 19 2.36% 560 2.90E‐06 4 3.31% 786 4.07E‐06 12 6.92% 1642 8.52E‐06 20 0.87% 206 1.07E‐06 5 2.17% 515 2.67E‐06 13 6.29% 1493 7.74E‐06 21 3.09% 733 3.80E‐06 6 3.36% 797 4.14E‐06 14 6.23% 1479 7.67E‐06 22 4.12% 978 5.07E‐06 7 6.00% 1424 7.38E‐06 15 5.15% 1222 6.34E‐06 23 2.58% 612 3.18E‐06 8 4.58% 1087 5.64E‐06 16 3.84% 911 4.73E‐06 24 0.92% 218 1.13E‐06 Total 23,736
2655 The Alameda, Santa Clara, CA ‐ Offsite Residential Roadway Modeling Cumulative Operation ‐ El Camino Real
PM2.5 Modeling ‐ Roadway Links, Traffic Volumes, and PM2.5 Emissions Year = 2025
Road Link Description Direction No. Lanes
Link
Length
(m)
Link
Length
(mi)
Link
Width
(m)
Link
Width
(ft)
Release
Height
( m)
Average
Speed
(mph)
Average
Vehicles
per Day
PM25_ECR
El Cami no Real
Northbound/Southbound NB/SB 6 91.6 0.06 27.9 92 1.3 35 23,733 Emission Factors ‐ PM2.5
Speed Category 12 3 4
Travel Speed (mph) 35
Emissions per Vehicle (g/VMT) 0.001397
Emisson Factors from CT‐EMFAC2017
2025 Hourly Traffic Volumes and PM2.5 Emissions ‐ PM25_ECR Hour % Per Hour VPH g/s Hour
% Per
Hour VPH g/s Hour
% Per
Hour VPH g/s
1 1.15% 273 6.03E‐06 9 7.11% 1687 3.73E‐05 17 7.39% 1754 3.87E‐05 2 0.42% 100 2.20E‐06 10 4.39% 1042 2.30E‐05 18 8.18% 1941 4.29E‐05 3 0.41% 97 2.15E‐06 11 4.66% 1106 2.44E‐05 19 5.69% 1350 2.98E‐05 4 0.26% 62 1.36E‐06 12 5.89% 1398 3.09E‐05 20 4.28% 1016 2.24E‐05 5 0.50% 119 2.62E‐06 13 6.15% 1460 3.22E‐05 21 3.25% 771 1.70E‐05 6 0.91% 216 4.77E‐06 14 6.04% 1433 3.17E‐05 22 3.30% 783 1.73E‐05 7 3.79% 899 1.99E‐05 15 7.01% 1664 3.67E‐05 23 2.46% 584 1.29E‐05 8 7.77% 1844 4.07E‐05 16 7.14% 1695 3.74E‐05 24 1.86% 441 9.75E‐06 Total 23,736
2655 The Alameda, Santa Clara, CA ‐ Offsite Residential Roadway Modeling Cumulative Operation ‐ El Camino Real
TOG Exhaust Modeling ‐ Roadway Links, Traffic Volumes, and TOG Exhaust Emissions Year = 2025
Road Link Description Direction
No.
Lanes
Link
Length
(m)
Link
Length
(mi)
Link
Width
(m)
Link
Width
(ft)
Release
Height
( m)
Average
Speed
(mph)
Average
Vehicles
per Day
TEXH_ECR
El Cami no Real
Northbound/Southbound NB/SB 6 91.6 0.06 27.9 92 1.3 35 23,733 Emission Factors ‐ TOG Exhaust
Speed Category 12 3 4
Travel Speed (mph) 35
Emissions per Vehicle (g/VMT) 0.02739
Emisson Factors from CT‐EMFAC2017
2025 Hourly Traffic Volumes and TOG Exhaust Emissions ‐ TEXH_ECR Hour
% Per
Hour VPH g/s Hour
% Per
Hour VPH g/s Hour
% Per
Hour VPH g/s
1 1.15% 273 1.18E‐04 9 7.11% 1687 7.31E‐04 17 7.39% 1754 7.59E‐04 2 0.42% 100 4.32E‐05 10 4.39% 1042 4.51E‐04 18 8.18% 1941 8.41E‐04 3 0.41% 97 4.21E‐05 11 4.66% 1106 4.79E‐04 19 5.69% 1350 5.85E‐04 4 0.26% 62 2.67E‐05 12 5.89% 1398 6.05E‐04 20 4.28% 1016 4.40E‐04 5 0.50% 119 5.14E‐05 13 6.15% 1460 6.32E‐04 21 3.25% 771 3.34E‐04 6 0.91% 216 9.35E‐05 14 6.04% 1433 6.21E‐04 22 3.30% 783 3.39E‐04 7 3.79% 899 3.90E‐04 15 7.01% 1664 7.20E‐04 23 2.46% 584 2.53E‐04 8 7.77% 1844 7.99E‐04 16 7.14% 1695 7.34E‐04 24 1.86% 441 1.91E‐04 Total 23,736
2655 The Alameda, Santa Clara, CA ‐ Offsite Residential Roadway Modeling Cumulative Operation ‐ El Camino Real
TOG Evaporative Emissions Modeling ‐ Roadway Links, Traffic Volumes, and TOG Evaporative Emissions Year = 2025
Road Link Description Direction
No.
Lanes
Link
Length
(m)
Link
Length
(mi)
Link
Width
(m)
Link
Width
(ft)
Release
Height
( m)
Average
Speed
(mph)
Average
Vehicles
per Day
TEVAP_ECR
El Cami no Real
Northbound/Southbound NB/SB 6 91.6 0.06 27.9 92 1.3 35 23,733 Emission Factors ‐ PM2.5 ‐ Evaporative TOG
Speed Category 1 234
Travel Speed (mph) 35
Emissions per Vehicle per Hour (g/hour) 1.25540
Emissions per Vehicle per Mile (g/VMT) 0.03587
E misson Factors f rom CT ‐ E M FA C2017
2025 Hourly Traffic Volumes and TOG Evaporative Emissions ‐ TEVAP_ECR Hour
% Per
Hour VPH g/s Hour
% Per
Hour VPH g/s Hour
% Per
Hour VPH g/s
1 1.15% 273 1.55E‐04 9 7.11% 1687 9.57E‐04 17 7.39% 1754 9.95E‐04 2 0.42% 100 5.65E‐05 10 4.39% 1042 5.91E‐04 18 8.18% 1941 1.10E‐03 3 0.41% 97 5.52E‐05 11 4.66% 1106 6.27E‐04 19 5.69% 1350 7.66E‐04 4 0.26% 62 3.50E‐05 12 5.89% 1398 7.93E‐04 20 4.28% 1016 5.76E‐04 5 0.50% 119 6.73E‐05 13 6.15% 1460 8.28E‐04 21 3.25% 771 4.37E‐04 6 0.91% 216 1.22E‐04 14 6.04% 1433 8.13E‐04 22 3.30% 783 4.44E‐04 7 3.79% 899 5.10E‐04 15 7.01% 1664 9.43E‐04 23 2.46% 584 3.31E‐04 8 7.77% 1844 1.05E‐03 16 7.14% 1695 9.61E‐04 24 1.86% 441 2.50E‐04 Total 23,736
2655 The Alameda, Santa Clara, CA ‐ Offsite Residential Roadway Modeling Cumulative Operation ‐ El Camino Real
Fugitive Road PM2.5 Modeling ‐ Roadway Links, Traffic Volumes, and Fugitive Road PM2.5 Emissions Year = 2025
Road Link Description Direction
No.
Lanes
Link
Length
(m)
Link
Length
(mi)
Link
Width
(m)
Link
Width
(ft)
Release
Height
( m)
Average
Speed
(mph)
Average
Vehicles
per Day
FUG_ECR
El Cami no Real
Northbound/Southbound NB/SB 6 91.6 0.06 27.9 92 1.3 35 23,733 Emission Factors ‐ Fugitive PM2.5
Speed Category 1 234
Travel Speed (mph) 35
Tire Wear ‐ Emissions per Vehicle (g/VMT) 0.00211
Brake Wear ‐ Emissions per Vehicle (g/VMT) 0.01680
Road Dust ‐ Emissions per Vehicle (g/VMT) 0.01483
Total Fugitive PM2.5 ‐ Emissions per Vehicle (g/VMT) 0.03374 E misson Factors f rom CT ‐E M FA C2017
2025 Hourly Traffic Volumes and Fugitive PM2.5 Emissions ‐ FUG_ECR Hour
% Per
Hour VPH g/s Hour
% Per
Hour VPH g/s Hour
% Per
Hour VPH g/s
1 1.15% 273 1.46E‐04 9 7.11% 1687 9.00E‐04 17 7.39% 1754 9.35E‐04 2 0.42% 100 5.32E‐05 10 4.39% 1042 5.56E‐04 18 8.18% 1941 1.04E‐03 3 0.41% 97 5.19E‐05 11 4.66% 1106 5.90E‐04 19 5.69% 1350 7.20E‐04 4 0.26% 62 3.29E‐05 12 5.89% 1398 7.46E‐04 20 4.28% 1016 5.42E‐04 5 0.50% 119 6.33E‐05 13 6.15% 1460 7.79E‐04 21 3.25% 771 4.11E‐04 6 0.91% 216 1.15E‐04 14 6.04% 1433 7.65E‐04 22 3.30% 783 4.18E‐04 7 3.79% 899 4.80E‐04 15 7.01% 1664 8.87E‐04 23 2.46% 584 3.11E‐04 8 7.77% 1844 9.84E‐04 16 7.14% 1695 9.04E‐04 24 1.86% 441 2.35E‐04 Total 23,736
2655 The Alameda, Santa Clara, CA - El Camino Real Traffic - TACs & PM2.5 AERMOD Risk Modeling Parameters and Maximum Concentrations On-Site 1st & 2nd Levels of Residential Receptors
- At 1.5m (1st Fl) and 6.4m (2nd Fl) receptor heights
Emi s s i on Ye ar 2025
Receptor Information Max imum On-Site Receptor
Number of Receptors 36
Receptor Height 1st & 2nd Level of Residential Receptors Receptor Distances 7 m eter grid spacing in residential areas Meteorological Conditions
BAQMD San Jose Airport Met Data 2013-2017
Land Use Class ification Urban
Wind Speed V ariable
Wind Direction V ariable
On-Site Ca ncer Risk Ma xim um Concentr a tions
Meteorological
Data Years DPM Exhaust TOG Evaporative TOG
2013-2017 0.00004 0.0019 0.0025 1st Level of Res Receps 2013-2017 0.00003 0.0017 0.0023 2nd Level of Res Receps On-Site PM2.5 Maximum Concentrations
Meteorological
Data Y ears Total PM 2.5 Fugitiv e PM2.5 Vehicle PM 2.5 2013-2017 0.0025 0.0024 0.0001 1st Level of Res Receps
2013-2017 0.0022 0.0021 0.0001 2nd Level of Res Receps
Concentration (μg/m3)
PM2.5 Concentration (μg/m3)
2655 The Alameda, Santa Clara, CA - El Camino Real Cancer Risk & PM2.5 Impacts at On-Site 1st Level of Residential Receptors - 1.5 m ( 1st Fl) receptor heights 30 Year Residential Exposure
Cancer Risk Calculation Method
Cancer Ris k (per million) =CPF x Inhalation Dose x ASF x ED/AT x FAH x 1.0E6 Where: CPF = Cancer potency factor (m g/kg-day)
-1
ASF = Age sensitivity factor for specified age group
ED = Ex posure duration (years)
AT = Averaging tim e for lifetim e cancer risk (years)
FAH = Fraction of tim e spent at hom e (unitless)
Inhalation Dose = C
air x DBR x A x (EF/365) x 10
-6
Where: C air = concentration in air (μg/m
3 )
DBR = daily breathing rate (L /kg body weight-day)
A = Inhalation absorption factor
EF = Ex posure frequency (days/year)
10 -6
= Conversion factor
Cancer Potency Factors (mg/kg-day)
-1
CPF
1.10E+00
V ehicle TOG Ex haust 6.28E-03
V ehicle TOG Evaporative 3.70E-04
Values
Infant/Child Adult
Age --> 3rd Trimester 0 - 2 2 - 16 16 - 30
Parameter
ASF = 10 10 3 1
DBR* = 361 1090 572 261
A = 1 1 1 1
EF = 350 350 350 350
AT = 70 70 70 70
FAH = 1.00 1.00 1.00 0.73
* 95th percentile breathing rates for infants and 80th percentile for children and adult s Construction Cance r Risk by Ye ar - Maximum Impact Re ce ptor Location Expos ur e
Exposure Duration DPM
Exhaust
TOG
Evaporative
TOG DPM
Y ear (years) Age
0 0.25 -0.25 - 0* 10 0.00004 0.0019 0.0025 0.0005 0.0001 0.0000 0.001 Hazard
Index
Fugitive
PM 2.5
Total
PM 2.5
1 1 0 - 1 10 0.00004 0.0019 0.0025 0.0066 0.0018 0.0001 0.009 0.00001 0.002 0.002 2 1 1 - 2 10 0.00004 0.0019 0.0025 0.0066 0.0018 0.0001 0.009 3 1 2 - 3 3 0.00004 0.0019 0.0025 0.0010 0.0003 0.0000 0.001 4 1 3 - 4 3 0.00004 0.0019 0.0025 0.0010 0.0003 0.0000 0.001 5 1 4 - 5 3 0.00004 0.0019 0.0025 0.0010 0.0003 0.0000 0.001 6 1 5 - 6 3 0.00004 0.0019 0.0025 0.0010 0.0003 0.0000 0.001 7 1 6 - 7 3 0.00004 0.0019 0.0025 0.0010 0.0003 0.0000 0.001 8 1 7 - 8 3 0.00004 0.0019 0.0025 0.0010 0.0003 0.0000 0.001 9 1 8 - 9 3 0.00004 0.0019 0.0025 0.0010 0.0003 0.0000 0.001 10 1 9 - 10 3 0.00004 0.0019 0.0025 0.0010 0.0003 0.0000 0.001 11 1 10 - 11 3 0.00004 0.0019 0.0025 0.0010 0.0003 0.0000 0.001 12 1 11 - 12 3 0.00004 0.0019 0.0025 0.0010 0.0003 0.0000 0.001 13 1 12 - 13 3 0.00004 0.0019 0.0025 0.0010 0.0003 0.0000 0.001 14 1 13 - 14 3 0.00004 0.0019 0.0025 0.0010 0.0003 0.0000 0.001 15 1 14 - 15 3 0.00004 0.0019 0.0025 0.0010 0.0003 0.0000 0.001 16 1 15 - 16 3 0.00004 0.0019 0.0025 0.0010 0.0003 0.0000 0.001 17 1 16-17 1 0.00004 0.0019 0.0025 0.0001 0.0000 0.0000 0.000 18 1 17-18 1 0.00004 0.0019 0.0025 0.0001 0.0000 0.0000 0.000 19 1 18-19 1 0.00004 0.0019 0.0025 0.0001 0.0000 0.0000 0.000 20 1 19-20 1 0.00004 0.0019 0.0025 0.0001 0.0000 0.0000 0.000 21 1 20-21 1 0.00004 0.0019 0.0025 0.0001 0.0000 0.0000 0.000 22 1 21-22 1 0.00004 0.0019 0.0025 0.0001 0.0000 0.0000 0.000 23 1 22-23 1 0.00004 0.0019 0.0025 0.0001 0.0000 0.0000 0.000 24 1 23-24 1 0.00004 0.0019 0.0025 0.0001 0.0000 0.0000 0.000 25 1 24-25 1 0.00004 0.0019 0.0025 0.0001 0.0000 0.0000 0.000 26 1 25-26 1 0.00004 0.0019 0.0025 0.0001 0.0000 0.0000 0.000 27 1 26-27 1 0.00004 0.0019 0.0025 0.0001 0.0000 0.0000 0.000 28 1 27-28 1 0.00004 0.0019 0.0025 0.0001 0.0000 0.0000 0.000 29 1 28-29 1 0.00004 0.0019 0.0025 0.0001 0.0000 0.0000 0.000 30 1 29-30 1 0.00004 0.0019 0.0025 0.0001 0.0000 0.0000 0.000 Total Increased Cancer Risk 0.03 0.008 0.001 0.04
* Third trimester of pregnancy
2053
2054
2047
2048
2049
2050
2051
2052
2046
2035
2036
2037
2038
2039
2040
2043
2044
2045
2041
2042
Maximum
2025
2025
2026
TOTAL
Ye ar
Exhaust
TOG
Evaporative
TOG
Cancer Risk (p er million)
Age
Sensitiv ity
Factor
2034
2033
2028
2029
2030
2031
2032
TAC
DPM
M aximum - E xp osure Information
2027
Concentration (ug/m3)
2655 The Alameda, Santa Clara, CA - El Camino Real Cancer Risk & PM2.5 Impacts at On-Site 2nd Level of Residential Receptors - 6.4 m ( 2nd Fl) receptor heights 30 Year Residential Exposure
Cancer Risk Calculation Method
Cancer Ris k (per million) =CPF x Inhalation Dose x ASF x ED/AT x FAH x 1.0E6 Where: CPF = Cancer potency factor (m g/kg-day)
-1
ASF = Age sensitivity factor for specified age group
ED = Ex posure duration (years)
AT = Averaging tim e for lifetim e cancer risk (years)
FAH = Fraction of tim e spent at hom e (unitless)
Inhalation Dose = C
air x DBR x A x (EF/365) x 10
-6
Where: C air = concentration in air (μg/m
3 )
DBR = daily breathing rate (L /kg body weight-day)
A = Inhalation absorption factor
EF = Ex posure frequency (days/year)
10 -6
= Conversion factor
Cancer Potency Factors (mg/kg-day)
-1
CPF
1.10E+00
V ehicle TOG Ex haust 6.28E-03
V ehicle TOG Evaporative 3.70E-04
Values
Infant/Child Adult
Age --> 3rd Trimester 0 - 2 2 - 16 16 - 30
Parameter
ASF = 10 10 3 1
DBR* = 361 1090 572 261
A = 1 1 1 1
EF = 350 350 350 350
AT = 70 70 70 70
FAH = 1.00 1.00 1.00 0.73
* 95th percentile breathing rates for infants and 80th percentile for children and adult s Construction Cance r Risk by Ye ar - Maximum Impact Re ce ptor Location Expos ur e
Exposure Duration DPM
Exhaust
TOG
Evaporative
TOG DPM
Y ear (years) Age
0 0.25 -0.25 - 0* 10 0.00003 0.0017 0.0023 0.0004 0.0001 0.00001 0.001 Hazard
Index
Fugitive
PM 2.5
Total
PM 2.5
1 1 0 - 1 10 0.00003 0.0017 0.0023 0.0049 0.0016 0.00013 0.007 0.00001 0.00 20 . 0 0 2 2 1 1 - 2 10 0.00003 0.0017 0.0023 0.0049 0.0016 0.00013 0.007 3 1 2 - 3 3 0.00003 0.0017 0.0023 0.0008 0.0003 0.00002 0.001 4 1 3 - 4 3 0.00003 0.0017 0.0023 0.0008 0.0003 0.00002 0.001 5 1 4 - 5 3 0.00003 0.0017 0.0023 0.0008 0.0003 0.00002 0.001 6 1 5 - 6 3 0.00003 0.0017 0.0023 0.0008 0.0003 0.00002 0.001 7 1 6 - 7 3 0.00003 0.0017 0.0023 0.0008 0.0003 0.00002 0.001 8 1 7 - 8 3 0.00003 0.0017 0.0023 0.0008 0.0003 0.00002 0.001 9 1 8 - 9 3 0.00003 0.0017 0.0023 0.0008 0.0003 0.00002 0.001 10 1 9 - 10 3 0.00003 0.0017 0.0023 0.0008 0.0003 0.00002 0.001 11 1 10 - 11 3 0.00003 0.0017 0.0023 0.0008 0.0003 0.00002 0.001 12 1 11 - 12 3 0.00003 0.0017 0.0023 0.0008 0.0003 0.00002 0.001 13 1 12 - 13 3 0.00003 0.0017 0.0023 0.0008 0.0003 0.00002 0.001 14 1 13 - 14 3 0.00003 0.0017 0.0023 0.0008 0.0003 0.00002 0.001 15 1 14 - 15 3 0.00003 0.0017 0.0023 0.0008 0.0003 0.00002 0.001 16 1 15 - 16 3 0.00003 0.0017 0.0023 0.0008 0.0003 0.00002 0.001 17 1 16-17 1 0.00003 0.0017 0.0023 0.0001 0.0000 0.00000 0.000 18 1 17-18 1 0.00003 0.0017 0.0023 0.0001 0.0000 0.00000 0.000 19 1 18-19 1 0.00003 0.0017 0.0023 0.0001 0.0000 0.00000 0.000 20 1 19-20 1 0.00003 0.0017 0.0023 0.0001 0.0000 0.00000 0.000 21 1 20-21 1 0.00003 0.0017 0.0023 0.0001 0.0000 0.00000 0.000 22 1 21-22 1 0.00003 0.0017 0.0023 0.0001 0.0000 0.00000 0.000 23 1 22-23 1 0.00003 0.0017 0.0023 0.0001 0.0000 0.00000 0.000 24 1 23-24 1 0.00003 0.0017 0.0023 0.0001 0.0000 0.00000 0.000 25 1 24-25 1 0.00003 0.0017 0.0023 0.0001 0.0000 0.00000 0.000 26 1 25-26 1 0.00003 0.0017 0.0023 0.0001 0.0000 0.00000 0.000 27 1 26-27 1 0.00003 0.0017 0.0023 0.0001 0.0000 0.00000 0.000 28 1 27-28 1 0.00003 0.0017 0.0023 0.0001 0.0000 0.00000 0.000 29 1 28-29 1 0.00003 0.0017 0.0023 0.0001 0.0000 0.00000 0.000 30 1 29-30 1 0.00003 0.0017 0.0023 0.0001 0.0000 0.00000 0.000 Total Increased Cancer Risk 0.02 0.007 0.001 0.03
* Third trimester of pregnancy
2054
2047
2048
2049
2050
2051
2052
2045
2041
2042
2053
Cancer Risk (p er million)
2046
2035
2036
2037
2038
2039
2040
2043
2044
2030
2031
Maximum
2025
2025
2026
TOTAL
Exhaust
TOG
Evaporative
TOG
Concentration (ug/m3)
TAC
DPM
M aximum - E xp osure Information
2027
Ye ar
2034
2033
2028
Age
Sensitiv ity
Factor
2029
2032
Date of Request 8/12/2022
Contact Name Casey Divine
Affiliation Illingworth & Rodkin, Inc.
Phone 707‐794‐0400 x103
Email
[email protected]
m
Project Name 2655 The Alameda
Address 2655 The Alameda
City Santa Clara
County Santa Clara
Type (residential,
commercial, mixed
use, industrial, etc.) Residential
Project Size (# of
units or building
square feet) 39 du
Table A: Requester Contact Information
Comments:
Risk & Hazard Stationary Source Inquiry Form
This form is required when users request stationary source data from BAAQMD This form is to be used with the BAAQMD's Google Earth stationary source screening tables.
Click here for guidance on coducting risk & hazard screening, including roadways & freeways, refer to the District's Risk & Hazard Analysis flow chart.
Click here for District's Recommended Methods for Screening and Modeling Local Risks and Hazards document.
For Air District assistance, the following steps must be complet ed:
1. Complete all the contact and project information requested i n . Incomplete forms will not be processed. Please include a pr oject site map.
2. Download and install the free program Google Earth, http://www.google.com/earth/download/ge/, and then download the county specific Google Earth stationary source application files from the District's websit e, http://www.baaqmd.gov/Divisions/Planning‐and‐Research/CEQA‐GUIDELINES/Tools‐and‐ Methodology.aspx. The small points on the map represent stationary sources permit ted by the District (Map A on right). These permitted sources i nclude diesel back‐up generators, gas stations, dry cleaners, boilers, printe rs, auto spray booths, etc. Click on a point to view the source's Information Table, including the name, location, and preliminary estimated cancer risk, hazard index, and PM2.5 concentration.
3. Find the project site in Google Earth by inputting the site' s address in the Google Earth search box.
4. Identify stationary sources within at least a 1000ft radius of project site. Verify that the location of the source on the m ap matches with the source's address in the Information Table, by using the Google Earth address search box to confirm the source's address location. Please report an y mapping errors to the District.
5. List the stationary source information in blue section only.
6. Note that a small percentage of the stationary sources have Health Risk Screening Assessment (HRSA) data INSTEAD of screeni ng level data. These sources will be noted by an asterisk next to the Plant Name (Map B on right) . If HRSA values are presented, these values have already been m odeled and cannot be adjusted further.
7. Email this completed form to District staff. District staff will provide the most recent risk, hazard, and PM2.5 data that are available for the source(s). If this information or data are not available, source emissions data wi ll be provided. Staff will respond to inquiries within three weeks.
Note that a public records request received for the same statio nary source information will cancel the processing of your SSIF request.
Submit forms, maps, and questions to Matthew Hanson at 415‐749‐8733, or [email protected] Table A: Requester Contact Information
Table B
Table A
Preschool MEI
Distance from
Receptor (feet) or
MEI1 Plant No. Facility Name Address Cancer Risk 2 Hazard Risk2 PM2.5
2 Source No.3 Type of Source4 Fuel Code5 Status/Comments Distance
Adjustment
Multiplier
Adjusted
Cancer Risk
Estimate
Adjusted
Hazard
Risk
Adjusted
PM2.5
1000 15397_1 Santa Clara University 500 El Camino Real 1.81 0.003 0.0 02 Generator Generator 2020 Dataset 0.04 0.07 0.0001 0.0001 970 15397_10 Santa Clara University 500 El Camino Real 4.20 0.01 0.01 Generator Generator 2020 Dataset 0.04 0.17 0.0003 0.0002 950 15397_12 Santa Clara University 500 El Camino Real 11.71 0.02 0.0 1 Generator Generator 2020 Dataset 0.04 0.47 0.001 0.001 980 15397_13 Santa Clara University 500 El Camino Real 7.20 0.01 0.01 Generator Generator 2020 Dataset 0.04 0.29 0.0004 0.0004 910 15397_14 Santa Clara University 500 El Camino Real 2.44 0.004 0.0 03 Generator Generator 2020 Dataset 0.04 0.10 0.0002 0.0001 870 15397_16 Santa Clara University 500 El Camino Real 6.48 0.01 0.01 Generator Generator 2020 Dataset 0.05 0.32 0.001 0.0004 510 15397_18 Santa Clara University 500 El Camino Real 2.17 0.01 0.00 3 Generator Generator 2020 Dataset 0.10 0.22 0.001 0.0003 760 15397_19 Santa Clara University 500 El Camino Real 1.51 0.003 0.0 02 Generator Generator 2020 Dataset 0.06 0.09 0.0002 0.0001 370 15397_21 Santa Clara University 500 El Camino Real 1.73 0.003 0.0 02 Generator Generator 2020 Dataset 0.18 0.31 0.001 0.0004 575 15397_23 Santa Clara University 500 El Camino Real 1.58 0.003 0.0 02 Generator Generator 2020 Dataset 0.09 0.14 0.0003 0.0002 Footnotes: Project Site
1. Maximally exposed individual Distance from
Receptor (feet)
or MEI1 FACID (Plant No.)
Distance
Adjustment
Multiplier
Adjusted
Cancer Risk
Estimate
Adjusted
Hazard
Risk
Adjusted
PM2.5
720 15397_1 0.07 0.13 0.0002 0.0002
990 15397_10 0.04 0.17 0.0003 0.0002
585 15397_12 0.09 1.05 0.002 0.001
970 15397_13 0.04 0.29 0.0004 0.0004
1000 15397_14 0.04 0.10 0.0002 0.0001
990 15397_16 0.04 0.26 0.0004 0.0003
490 15397_18 0.12 0.26 0.001 0.0003
710 15397_19 0.07 0.11 0.0002 0.0001
485 15397_21 0.12 0.21 0.0004 0.0003
690 15397_23 0.08 0.13 0.0002 0.0002
c. BAAQMD Reg 11 Rule 16 required that all co‐residential (sharing a wall, floor, ceiling or is in the same building as a residential unit) dry cleaners cease use of perc on July 1, 2010.
Date last updated:
03/13/2018
g. This spray booth is considered to be insignificant.
4. Permitted sources include diesel back‐up generators, gas stations, dry cleaners, boilers, printers, auto spray booths, etc.
11. Further information about common sources:
a. Sources that only include diesel internal combustion engines can be adjusted using the BAAQMD's Diesel Multiplier worksheet . b. The risk from natural gas boilers used for space heating whe n <25 MM BTU/hr would have an estimated cancer risk of one in a million or less, and a chronic hazard index of 0.003 or Therefore, there is no cancer risk, hazard or PM2.5 concentrations from co‐residential dry cleaning businesses in the BAAQMD. d. Non co‐residential dry cleaners must phase out use of perc b y Jan. 1, 2023. Therefore, the risk from these dry cleaners doe s not need to be factored in over a 70‐year period, but instead should reflect e. Gas stations can be adjusted using BAAQMD's Gas Station Distance Mulitplier worksheet.
6. If a Health Risk Screening Assessment (HRSA) was completed f or the source, the application number will be listed here.
7. The date that the HRSA was completed.
8. Engineer who completed the HRSA. For District purposes only.
9. All HRSA completed before 1/5/2010 need to be multiplied by an age sensitivity factor of 1.7.
10. The HRSA "Chronic Health" number represents the Hazard Inde x.
5. Fuel codes: 98 = diesel, 189 = Natural Gas.
2. These Cancer Risk, Hazard Index, and PM2.5 columns represent the values in the Google Earth Plant Information Table.
3. Each plant may have multiple permits and sources.
f. Unless otherwise noted, exempt sources are considered insign ificant. See BAAQMD Reg 2 Rule 1 for a list of exempt sources.
Table B: Google Earth data
Distance
(meters)
Distance
(feet)
Distance
adjustment
multiplier
Enter Risk or
Hazard
Adjusted Risk
or Hazard
Distance
(meters)
Distance
(feet)
Distance
adjustment
multiplier
Enter Risk
or Hazard
Adjusted
Risk or
Hazard
Enter PM2.5
Concentration
Adjusted PM2.5
Concentration
Distance
(meters)
Distance
(feet) Multiplier
0 0.0 1.000 0.0000 0 0.0 1.000 0 0 0 0.0 1.000
5 16.4 1.000 0.0000 5 16.4 1.000 0 0 5 16.4 1.000
10 32.8 1.000 0.0000 10 32.8 1.000 0 0 10 32.8 0.883
15 49.2 1.000 0.0000 15 49.2 1.000 0 0 15 49.2 0.855
20 65.6 1.000 0.0000 20 65.6 1.000 0 0 20 65.6 0.827
25 82.0 0.728 0.0000 25 82.0 0.85 0 0 25 82.0 0.801
30 98.4 0.559 0.0000 30 98.4 0.73 0 0 30 98.4 0.775
35 114.8 0.445 0.0000 35 114.8 0.64 0 0 35 114.8 0.750
40 131.2 0.365 0.0000 40 131.2 0.58 0 0 40 131.2 0.726
45 147.6 0.305 0.0000 50 164.0 0.5 0 0 45 147.6 0.702
50 164.0 0.260 0.0000 60 196.9 0.41 0 0 50 164.0 0.679
55 180.4 0.225 0.0000 70 229.7 0.31 0 0 55 180.4 0.658
60 196.9 0.197 0.0000 80 262.5 0.28 0 0 60 196.9 0.636
65 213.3 0.174 0.0000 90 295.3 0.25 0 0 65 213.3 0.616
70 229.7 0.155 0.0000 100 328.1 0.22 0 0 70 229.7 0.596 75 246.1 0.139 0.0000 110 360.9 0.18 0 0 75 246.1 0.577 80 262.5 0.126 0.0000 120 393.7 0.16 0 0 80 262.5 0.558 85 278.9 0.114 0.0000 130 426.5 0.15 0 0 85 278.9 0.540 90 295.3 0.104 0.0000 140 459.3 0.14 0 0 90 295.3 0.523 95 311.7 0.096 0.0000 150 492.1 0.12 0 0 95 311.7 0.506 100 328.1 0.088 0.0000 160 524.9 0.1 0 0 100 328.1 0.489 105 344.5 0.082 0.0000 180 590.6 0.09 0 0 105 344.5 0.474 110 360.9 0.076 0.0000 200 656.2 0.08 0 0 110 360.9 0.458 115 377.3 0.071 0.0000 220 721.8 0.07 0 0 115 377.3 0.444 120 393.7 0.066 0.0000 240 787.4 0.06 0 0 120 393.7 0.429 125 410.1 0.062 0.0000 260 853.0 0.05 0 0 125 410.1 0.415 130 426.5 0.058 0.0000 280 918.6 0.04 0 0 130 426.5 0.402 135 442.9 0.055 0.0000 135 442.9 0.389
140 459.3 0.052 0.0000 140 459.3 0.376
145 475.7 0.049 0.0000 145 475.7 0.364
150 492.1 0.046 0.0000 150 492.1 0.353
155 508.5 0.044 0.0000 155 508.5 0.341
160 524.9 0.042 0.0000 160 524.9 0.330
165 541.3 0.040 0.0000 165 541.3 0.319
170 557.7 0.038 0.0000 170 557.7 0.309
175 574.1 0.036 0.0000 175 574.1 0.299
180 590.6 0.034 0.0000 180 590.6 0.290
185 607.0 0.033 0.0000 185 607.0 0.280
190 623.4 0.031 0.0000 190 623.4 0.271
195 639.8 0.030 0.0000 195 639.8 0.262
200 656.2 0.029 0.0000 200 656.2 0.254
205 672.6 0.028 0.0000 205 672.6 0.246
210 689.0 0.027 0.0000 210 689.0 0.238
215 705.4 0.026 0.0000 215 705.4 0.230
220 721.8 0.025 0.0000 220 721.8 0.223
225 738.2 0.024 0.0000 225 738.2 0.216
230 754.6 0.023 0.0000 230 754.6 0.209
235 771.0 0.022 0.0000 235 771.0 0.202
240 787.4 0.022 0.0000 240 787.4 0.195
245 803.8 0.021 0.0000 245 803.8 0.189
250 820.2 0.020 0.0000 250 820.2 0.183
255 836.6 0.020 0.0000 255 836.6 0.177
260 853.0 0.019 0.0000 260 853.0 0.171
265 869.4 0.018 0.0000 265 869.4 0.166
270 885.8 0.018 0.0000 270 885.8 0.160
275 902.2 0.017 0.0000 275 902.2 0.155
280 918.6 0.017 0.0000 280 918.6 0.150
285 935.0 0.016 0.0000 285 935.0 0.145
290 951.4 0.016 0.0000 290 951.4 0.141
295 967.8 0.015 0.0000 295 967.8 0.136
300 984.3 0.015 0.0000 300 984.3 0.132
Gasoline Dispensing Facility (GDF) Distance Multiplier Tool: This distance multiplier tool refines the screening values for cancer risk and chronic hazard index found in the District's Stationary Source Screening Analysis Tool for GDF's, to represent adjusted risk and hazard impacts that can be expected with farther distances from the source of emissions.
Diesel Internal Combustion (IC) Engine Distance Multiplier Tool: This distance multiplier tool refines the screening values for cancer risk and PM2.5 concentrations found in the District's Stationary Source Screening Analysis Tool for permitted facilities which contain only diesel IC engines, to represent adjusted risk and hazard impacts that can be expected with farther distances from the source of emissions.
Generic Distance Multiplier Tool: This distance multiplier tool refines the screening values to represent adjusted risk and hazard impacts that can be expected with farther
distances from the source of emissions.
Gas Station Diesel Backup Generator Generic Case
8/12/22, 2:48 PM
1/3
Screening Report
Area of Interest (AOI) Information
Area : 4,567,713.7 ft²
Aug 12 2022 14:47:09 Pacific Daylight Time
8/12/22, 2:48 PM
2/3
Summary
Name Count Area(ft²) Length(ft)
Permitted Stationary Sources10 N/A N/A
Permitted Stationary Sources
# FacID FacName Address City Street
1 15397_1 Santa Clara University500 El Camino RealSanta Clara CA 2 15397_10 Santa Clara University500 El Camino RealSanta Clara CA 3 15397_12 Santa Clara University500 El Camino RealSanta Clara CA 4 15397_13 Santa Clara University500 El Camino RealSanta Clara CA 5 15397_14 Santa Clara University500 El Camino RealSanta Clara CA 6 15397_16 Santa Clara University500 El Camino RealSanta Clara CA 7 15397_18 Santa Clara University500 El Camino RealSanta Clara CA 8 15397_19 Santa Clara University500 El Camino RealSanta Clara CA 9 15397_21 Santa Clara University500 El Camino RealSanta Clara CA 10 15397_23 Santa Clara University500 El Camino RealSanta Clara CA # Zip County Latitude Longitude Details
1 95,053.00 Santa Clara 37.35 -121.93 Generator
2 95,053.00 Santa Clara 37.35 -121.94 Generator
3 95,053.00 Santa Clara 37.35 -121.93 Generator
4 95,053.00 Santa Clara 37.35 -121.94 Generator
5 95,053.00 Santa Clara 37.35 -121.94 Generator
6 95,053.00 Santa Clara 37.35 -121.94 Generator
7 95,053.00 Santa Clara 37.35 -121.94 Generator
8 95,053.00 Santa Clara 37.35 -121.94 Generator
9 95,053.00 Santa Clara 37.35 -121.94 Generator
10 95,053.00 Santa Clara 37.35 -121.94 Generator
8/12/22, 2:48 PM
3/3
# NAICS Sector Sub_Sector Industry ChronicHI
1 611,310.00 Educational ServicesEducational ServicesColleges, Universities,and ProfessionalSchools 0.0028061 2 611,310.00 Educational ServicesEducational ServicesColleges, Universities,and ProfessionalSchools 0.0064942 3 611,310.00 Educational ServicesEducational ServicesColleges, Universities,and ProfessionalSchools 0.0181196 4 611,310.00 Educational ServicesEducational ServicesColleges, Universities,and ProfessionalSchools 0.0111443 5 611,310.00 Educational ServicesEducational ServicesColleges, Universities,and ProfessionalSchools 0.0037682 6 611,310.00 Educational ServicesEducational ServicesColleges, Universities,and ProfessionalSchools 0.0100219 7 611,310.00 Educational ServicesEducational ServicesColleges, Universities,and ProfessionalSchools 0.0070093 8 611,310.00 Educational ServicesEducational ServicesColleges, Universities,and ProfessionalSchools 0.0028516 9 611,310.00 Educational ServicesEducational ServicesColleges, Universities,and ProfessionalSchools 0.0034340 10 611,310.00 Educational ServicesEducational ServicesColleges, Universities,and ProfessionalSchools 0.0028062 # PM2_5 Cancer Risk{expression/expr0}Chronic Hazard Index{expression/expr1} PM2.5{expression/expr2} Count 1 0.0023128 1.814 0.003 0.002 1
2 0.0053524 4.197 0.006 0.005 1
3 0.0149337 11.71 0.018 0.015 1
4 0.0091849 7.202 0.011 0.009 1
5 0.0031057 2.435 0.004 0.003 1
6 0.0082598 6.477 0.01 0.008 1
7 0.0026680 2.173 0.007 0.003 1
8 0.0019092 1.509 0.003 0.002 1
9 0.0021901 1.734 0.003 0.002 1
10 0.0020021 1.578 0.003 0.002 1
NOTE: A larger buffer than 1000 feet may be warranted depending on proximity to significant sources.
Ge
otechnical Engineering ● Engineering Geology
Project No. TET 22-235E
May 26, 2022
DUE DILI
GENCE – PRIVILEGED AND CONFIDENTIAL
Geotechnical Design Report
PROPOSED RESIDENTIAL / RETAIL
DEVELOPMENT
2655 The Alameda
Santa Clara, California
Pr
epared for:
Pr
epared by:
Kapital Partners, LLC
1999 S. Bascom Ave, Suite 250
Campbell, CA 95008
Tetra Tech
21700 Copley Drive, Suite #200
Diamond Bar, California 91765
21700 Copley Drive Suite #200 * Diamond Bar, CA 91765 * Tel: 909-860-7777 Project No. TET 22-235E
May 26, 2022
Ms
. Anjuli Habbas
Kapital Partners, LLC
1999 S. Bascom Ave, Suite 250
Campbell, CA 95008
Subj
ect: DUE DILIGENCE – PRIVILEGED AND CONFIDENTIAL
GEOTECHNICAL DESIGN REPORT
PROPOSED RESIDENTIAL / RETAIL DEVELOPMENT
2655 The Alameda
Santa Clara, CA 95050
Dear Ms. Habbas:
Te
tra Tech is pleased to submit the results of our geotechnical investigation for the proposed residential / retail development located at 2655 The Alameda in the City of Santa Clara, California.
The purpose of our investigation was to evaluate the subsurface conditions at the property and to provide recommendations for design and construction of the proposed development . We understand that this information will be utilized for your due-diligence assessment of the property as well as for future design and construction purposes should you continue to move forward with the project. This report includes a brief description of the proposed development, a discussion regarding the field exploration and laboratory testing, a description of subsurface conditions, a discussion on engineering seismology and geological hazards, and provides geotechnical conclusions and recommendations. The appendices to the report include logs of our exploratory borings, results of laboratory tests, seismic demand, and liquefaction evaluation.
We
appreciate the opportunity to provide our professional service s on this project. If you have any questions regarding this report or if we can be of further service, please do not hesitate to contact the undersigned.
Respectfully submitted,
Tetra Tech
Fernando Cuenca, PhD, GE
Senior Engineer
Yong Lang Li, PhD, GE
Senior Engineer
Mic
hael O. Spira, CEG
Supervising Engineering Geologist
Distribution:
Addressee ([email protected] pdf by email)
Filenam
e: 2022-05-26 The Alameda GDR .docx
Kapital Partners, LLC Due Diligence – Privileged and Confidential Project No. TET 22-235E Proposed Residential / Retail Development – 2655 The Alameda May 26, 2022
TABLE OF CONTENTS
Page
21700 Copley Drive Suite #200 * Diamond Bar, CA 91765 * Tel: 909-860-7777
1. INTRODUCTION .................................................................................................................. 1
2. SCOPE OF SERVICES .......................................................................................................... 2
3. SITE DESCRIPTION ............................................................................................................. 3
4. PROJECT DESCRIPTION ..................................................................................................... 4
5. FIELD INVESTIGATION ..................................................................................................... 5
6. LABORATORY TESTING.................................................................................................... 6
7. GEOLOGIC AND SUBSURFACE CONDITIONS .............................................................. 7
7.1. UNDOCUMENTED ARTIFICIAL FILL (AF) ........................................................................... 7
7.2. ALLUVIUM (QYA) ............................................................................................................ 7
7.3. GROUNDWATER ............................................................................................................... 8
8. GEOLOGIC HAZARDS ........................................................................................................ 9
8.1. GENERAL SEISMIC SETTING ............................................................................................. 9
8.2. HISTORICAL EARTHQUAKES ............................................................................................ 9
8.3. SEISMIC HAZARDS AND SURFACE FAULT RUPTURE POTENTIAL .................................... 11
8.3.1. Seismic Hazards ................................................................................................................................... 11
8.3.2. Surface Fault Rupture .......................................................................................................................... 12
8.4. LIQUEFACTION POTENTIAL AND DYNAMIC SETTLEMENT ASSESSMENT ......................... 12
8.4.1. Groundwater Level for Liquefaction Analysis .................................................................................... 12
8.4.2. Liquefaction Seismic Demand ............................................................................................................. 12
8.4.3. Evaluation of Liquefaction Potential and Sensitivity Analyses ........................................................... 13
8.4.4. Dynamic Settlement ............................................................................................................................. 14
8.5. LATERAL SPREADING ..................................................................................................... 14
8.6. LANDSLIDE HAZARD ...................................................................................................... 14
8.7. EXPANSIVE SOILS .......................................................................................................... 14
8.8. COLLAPSIBLE SOILS ....................................................................................................... 15
8.9. TSUNAMIS AND SEICHES ................................................................................................ 15
8.10. SUBSIDENCE................................................................................................................... 15
9. DESIGN RECOMMENDATIONS ...................................................................................... 17
9.1. GENERAL ....................................................................................................................... 17
9.2. SITE PREPARATION ........................................................................................................ 17
9.2.1. Clearing and Grubbing ......................................................................................................................... 17
9.2.2. Subgrade Preparation ........................................................................................................................... 18
9.2.3. Fill Placement ...................................................................................................................................... 19
9.3. EXCAVATION CHARACTERISTICS, TEMPORARY SLOPES AND TRENCH EXCAVATIONS ... 20
9.4. TEMPORARY SHORED EXCAVATIONS ............................................................................. 20
9.4.1. Temporary Dewatering ........................................................................................................................ 21
9.4.2. Shoring Design .................................................................................................................................... 21
9.4.3. Deflection ............................................................................................................................................ 23
9.4.4. Internal Bracing ................................................................................................................................... 23
9.4.5. Construction Considerations ................................................................................................................ 24 Kapital Partners, LLC Due Diligence – Privileged and Confidential Project No. TET 22-235E Proposed Residential / Retail Development – 2655 The Alameda May 26, 2022
TABLE OF CONTENTS (continued)
Page
ii
9.4.6. Shoring Performance Monitoring ........................................................................................................ 24
9.5. SEISMIC DESIGN PARAMETERS ...................................................................................... 24
9.6. MAT FOUNDATION ......................................................................................................... 26
9.6.1. Design Parameters for the Mat Foundation ......................................................................................... 26
9.6.2. Groundwater Considerations ............................................................................................................... 28
9.7. SHALLOW FOUNDATIONS ADJACENT TO UTILITY TRENCHES ........................................ 28
9.8. EXTERIOR CONCRETE SLABS ON GRADE........................................................................ 28
9.9. BASEMENT WALLS ........................................................................................................ 29
9.9.1. Lateral Loading .................................................................................................................................... 29
9.10. UPLIFT OF BURIED STRUCTURES .................................................................................... 30
9.11. PORTLAND CEMENT CONCRETE (PCC) PAVEMENT DESIGN .......................................... 31
9.11.1. Pavement Structural Section ........................................................................................................... 31
9.11.2. Construction Considerations ........................................................................................................... 31
9.12. FEASIBILITY OF ONSITE STORMWATER INFILTRATION ................................................... 32
9.13. SOIL CORROSION ........................................................................................................... 32
9.14. DRAINAGE CONTROL ..................................................................................................... 32
10. GENERAL SITE GRADING RECOMMENDATIONS ..................................................... 34
11. DESIGN REVIEW AND CONSTRUCTION MONITORING ........................................... 36
11.1. PLANS AND SPECIFICATIONS .......................................................................................... 36
11.2. CONSTRUCTION MONITORING ........................................................................................ 36
11.3. GRADING OBSERVATIONS .............................................................................................. 36
11.4. FOUNDATION SUBGRADE OBSERVATIONS ..................................................................... 36
11.5. PAVEMENT CONSTRUCTION OBSERVATIONS ................................................................. 36
11.6. CONSTRUCTION QUALITY ASSURANCE REPORTING ....................................................... 37
12. LIMITATIONS ..................................................................................................................... 38
13. SELECTED REFERENCES ................................................................................................ 39
Kapital Partners, LLC Due Diligence – Privileged and Confidential Project No. TET 22-235E Proposed Residential / Retail Development – 2655 The Alameda May 26, 2022
iii
Figures
Figure 1 – Site Location Map
Figure 2 – Former Excavation Limit Map
Figures 3A, B and C – Preliminary Development Plan
Figure 4 – Boring Locations Map
Figure 5 – Regional Geologic Map
Figure 6 – Historic High Groundwater Map
Figure 7 – Regional Faults and Seismicity Map
Figure 8 – Seismic Hazard Zones Map
Appendices
Appendix A – Logs of Exploratory Borings
Appendix B – Results of Laboratory Testing
Appendix C – Seismic Demand
Appendix D – Liquefaction Evaluation
Kapital Partners, LLC Due Diligence – Privileged and Confidential Project No. TET 22-235E Proposed Residential / Retail Development – 2655 The Alameda May 26, 2022
1 1. INTRODUCTION
This report presents the results of Tetra Tech’s geotechnical engineering evaluation and design recommendations for the proposed residential / retail development at 2655 The Alameda in the City of Santa Clara, Santa Clara County, California . The location of the site is shown on Figure 1 – Site Location Map.
The purpose of our investigation was to evaluate the subsurface conditions at the property and to provide recommendations for the design and construction of the proposed development . This report includes a brief description of the proposed development, a discussion of our field exploration, laboratory testing results, a description of subsurface conditions, a discussion regarding engineering seismology and geological hazards, and provides geotechnical conclusions and recommendations for design and construction of the proposed development.
Kapital Partners, LLC Due Diligence – Privileged and Confidential Project No. TET 22-235E Proposed Residential / Retail Development – 2655 The Alameda May 26, 2022
2 2. SCOPE OF SERVICES
Tetra Tech’s scope of services for this project consisted of the following tasks:
• Review the provided environmental reports for the site.
• Review aerial photographs, geotechnical literature, geologic maps, and seismic hazard maps relevant to the subject site.
• Notify Underground Service Alert (USA) prior to drilling for clearance of underground utilities.
• Procure a drilling permit from the Santa Clara Valley Water District.
• Perform a subsurface exploration consisting of drilling and sampling 2 soil borings to a depth of 31.5 and 81.5 feet.
• Conduct laboratory testing of selected samples recovered from the exploratory borings to evaluate geotechnical properties of the on-site soils.
• Process and evaluate the collected geotechnical data for use in developing geotechnical recommendations including the following items:
♦ General subsurface conditions and description of types, distribution, and engineering characteristics of subsurface materials,
♦ Liquefaction potential and seismic settlement of the on-site granular materials, ♦ Sensitivity of the on-site fine-grained materials,
♦ Suitability of on-site soils for the support of structures, ♦ Seismic design parameters in accordance with 2019 California Building Code (2019 CBC),
♦ Corrosion potential of the on-site soils to buried concrete and steel.
• Develop design and construction recommendations for the following items:
♦ Temporary shoring,
♦ Mat foundations including allowable bearing pressures, lateral resistance, and settlement estimates,
♦ Static and seismic lateral earth pressures on basement walls, ♦ Portland cement concrete pavement section for driveways.
• Prepare this report documenting reference maps and illustrations, collected field and laboratory data, and geotechnical recommendations for the design and construction of the proposed development.
Kapital Partners, LLC Due Diligence – Privileged and Confidential Project No. TET 22-235E Proposed Residential / Retail Development – 2655 The Alameda May 26, 2022
3 3. SITE DESCRIPTION
The site is a triangular-shaped 0.4-acre property bordered by The Alameda to the northeast, by Park Avenue to the southwest and by the existing Safeway Center parking lot to the southeast.
The site is currently a vacant lot that is covered with dirt and with chain-link fencing along the perimeter of the site . Groundwater and vapor monitoring wells associated with previous environmental studies are also present at the site.
Topographically, the site is relatively level. However, the general site vicinity slopes very gently to the northeast. Based on Google earth imagery, the site elevation is approximately 74 to 75 feet.
Based on our review of background environmental information provided to us, the site was previously occupied by a former Unocal-branded service station that operated from approximately 1930 to 1993. In March of 1993 all the above- and below-ground facilities were removed. These facilities reportedly included two 10,000 -gallon gasoline underground storage tanks (USTs), one 8,000-gallon diesel UST, a 500- gallon waste-oil UST, an additional 100 -gallon storage tank, a clarifier, product lines, three product dispenser islands, a station building and some other associated improvements. Excavations up to 14.5 feet deep were reportedly made in the area where the fuel storage tanks had been located, and up to 3.5 feet deep in the area where the product lines and dispenser islands had been located. These excavations were reportedly backfilled with imported soil materials. However, specific d ocumentation regarding the placement and compaction of the imported soil material was not included in the reviewed documents . The approximate excavation limits associated with the removal of the UST’s and previous underground improvements are shown on Figure 2
– Former Excavation Limit Map.
Kapital Partners, LLC Due Diligence – Privileged and Confidential Project No. TET 22-235E Proposed Residential / Retail Development – 2655 The Alameda May 26, 2022
4 4. PROJECT DESCRIPTION
The proposed development will entail the construction of a mixed-use residential / retail building that will occupy most of the site. Based on the preliminary development plans shown in Figures 3A, 3B and 3C – Preliminary Development Plan, the proposed building will consist of a 4-story structure with a 14,143-square-foot subterranean parking garage under the footprint of the building. The street level grade will be used for retail and residential units. Levels 2 through 4 will be used for residential units. Total building height, including roof parapet, is approximately 52 to 55 feet. The horizontal setback for the below grade parking garage adjacent to The Alameda and Park Avenue is 4 feet. To the southeast, along the boundary with the Safeway Center parking lot, the parking garage is to be positioned along the property line.
Neither site grading nor foundation plans have been prepared for the project at this time. However, based on the preliminary development plan, future construction for the building and underground parking garage will generally require excavations of approximately 12 to 15 feet over much of the site with maximum excavation depths extending in localized areas up to approximately 20 feet to accommodate elevator pits and other utilitarian infrastructure . The proposed excavations will remove any uncertified fill within the area. Considering that the proposed building structure is adjacent to or along the property line, a shoring system will be required to support the temporary excavations.
Considering the underlying geologic conditions of the site, as presented in the Geology and Subsurface Condition section of this report, we anticipate that the building will be supported on a structural mat foundation. The mat foundation will likely be occupying almost the entire triangular lot with maximum dimensions of approximately 250 feet by 137 feet by 283 feet. Foundation pressures are not expected to exceed 2 ksf although at the time of writing no information regarding structural loads is available. Once the actual dimensions of the building and the foundation loads are finalized, this office should be contacted to verify that the recommendations provided herein are still applicable.
Kapital Partners, LLC Due Diligence – Privileged and Confidential Project No. TET 22-235E Proposed Residential / Retail Development – 2655 The Alameda May 26, 2022
5 5. FIELD INVESTIGATION
The subsurface soil and groundwater c onditions were explored by Tetra Tech on April 15, 2022 and included drilling, logging, and sampling of 2 exploratory borings, Tt-1 and Tt-2. The locations of the 2 borings are shown on Figure 4 – Boring Locations Map. Relevant boring information including latitude and longitude, approximate ground surface elevation, and exploration depth is summarized in Table 1 below.
Table 1
Soil Boring Locations Information
Boring No. General Location Latitude
(degrees)
Longitude
(degrees)
Approximate
Depth
(ft)
Approximate
Ground
Elevation
(ft)
Tt-1 North area of site 37.346365 -121.937575 31.5 75
Tt-2 East-central portion of site 37.346236 -121.937266 81.5 75
Prior to initiation of the field exploration program, a field reconnaissance was conducted to observe surface conditions and to mark the locations of the planned subsurface exploration. Underground Service Alert was notified of the exploratory boring locations at least 48 hours prior to drilling. A drilling permit was also obtained through the Santa Clara Valley Water District.
The borings were excavated using a truck -mounted CME 85 drill rig equipped with 8-inch diameter hollow-stem augers. Bulk, driven California-type ring samples, and Standard Penetration Test (SPT) samples were collected during the drilling and transported to a laboratory for testing.
The SPT sampler consisted of a 2 -inch outside diameter, 1.4- inch inside diameter split barrel without liners, while the California -type sampler consisted of a 3 -inch O.D., and a 2.4- inch I.D. split barrel. The interior of the California-type sampler was lined with 1-inch-long brass rings.
SPT testing was performed using an SPT sampler driven by an automatic 140-pound hammer with a drop of 30 inches in general accordance with ASTM D1586. The total number of hammer blows required to drive the sampler the final 12 inches is termed the “blowcou nt.” The hammer calibration record indicated an average energy transfer ratio of 75 percent. Ring- type samples were collected by driving the California-type sampler using the same equipment as for the SPTs.
Sampling was generally carried out at 2.5- or 5-foot vertical intervals.
The borings were surface logged by a Geologist in general accordance with the visual -manual procedure for description and identification of soils per ASTM D2488. The Geologist prepared the recovered samples for subsequent laboratory testing. At the completion of drilling, the borings were backfilled with cement -bentonite grout . The excavated materials were drummed and disposed of at an approved dis posal facility. The e xploratory boring logs are presented in Appendix A – Logs of Exploratory Borings.
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6 6. LABORATORY TESTING
Laboratory tests were performed on selected samples recovered from the borings to aid in the classification of soils and to evaluate pertinent engineering properties of the foundation soils. The following tests were performed:
• In-situ Moisture Content and Dry Density, ASTM D2937; • Percent Passing #200, ASTM D1140;
• Atterberg Limits, ASTM D4318;
• Expansion Index, ASTM D4829;
• Consolidation, ASTM D2435;
• Direct Shear, ASTM D3080; and
• Corrosion Testing in Soils:
pH and resistivity, CTM 643;
Sulphates, CTM 417; and
Chlorides, CTM 422.
Laboratory testing was performed in general accordance with applicable ASTM Standards and California Test Methods. Results of laboratory tests are presented in Appendix B – Results of Laboratory Testing. For ease of referral to the soil profile, selected laboratory results have been included on the boring logs in Appendix A.
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7 7. GEOLOGIC AND SUBSURFACE CONDITIONS
Regionally, the site is in the Santa Clara Valley, which extends southeastward from San Francisco Bay and is a northwest / southeast trending valley within the Coast Ranges Geomorphic Province of Northern California. The Santa Clara Valley is a broad alluvium-filled basin located between the Santa Cruz Mountains to the southwest and the Diablo Range to the northeast. The sediments on the valley floor, as shown on the Figure 5 – Regional Geologic Map, are generally comprised of alluvial sands, silts, clays, and gr avels associated with Holocene -age alluvial fan, levee, and active stream channel deposits, and with marine estuary deposits located along the bay margins .
Major right-lateral strike-slips faults occur on either side of the Santa Clara Valley . These faults include the San Andreas fault on the southwest side of the valley and the Hayward and Calaveras faults on the northeast side of the valley.
The subsurface soils encountered during Tetra Tech’s field exploration , consisted of undocumented artificial fill soils over native alluvial deposits. The soils were found to be generally consistent with the materials encountered during previous environmental studies at the site .
Detailed descriptions of the soil units encountered during our field exploration are presented below and in the boring logs included Appendix A.
7.1. Undocumented Artificial Fill (af)
Undocumented artificial fill soils associated with previous site development and the demolition of former above- and below-ground site improvements are present over much of the site. These fills, based on our research, consist of both locally derived materials as well as imported fill soils. The locally derived artificial fill materials, as observed in exploratory boring Tt -1, were encountered to a depth of approximately 3 feet and consisted of brown clayey sands that were generally dry to damp and contained trace amounts of concrete fragments less than 4 inches in size. Imported fill soils were not encountered during our field exploration. They were reportedly used during backfill operations associated with the removal of former USTs and other assorted underground improvement excavations at the site in 1993. According to the referenced report by Pacific Environmental Group, Inc. (1994), the backfilled soils were up 14.5 feet deep . Specific documentation concerning the characteristics of these fills and backfill operati ons w ere not included in the ir report. T he approximate limits of the former excavations that were backfilled with imported soils , as presented in the referenced report by Pacific Environmental Group, Inc. (1994), are shown on Figure 2.
7.2. Alluvium (Qya)
Quaternary-age alluvial deposits underlie the fill materials throughout the entire site and were encountered to the maximum explored depth of 81.5 feet during our field exploration. The alluvial soils encountered within the upper 5 feet to 12 feet of the ground surface generally consisted of brown sandy clays that were damp, soft to stiff, and contained gravels up to 3 inches in diameter.
Below the upper alluvium to a depth of approximately 55 feet, the encountered alluvial soils consisted primarily of firm to stiff lean clays that were olive gray, yellowish brown, blueish gray, and black in color, and moist to wet. Also included in this sequence were occasional discontinuous silt, sand, and clayey sand layers. From about 55 feet to 73 feet in depth, the alluvial soils consisted Kapital Partners, LLC Due Diligence – Privileged and Confidential Project No. TET 22-235E Proposed Residential / Retail Development – 2655 The Alameda May 26, 2022
8 primarily of interlayered clayey sand, silt, lean clay, and silty sand. These soils were generally blueish gray in color, medium dense or very stiff , and wet. Poorly graded gravels with coarse - grained sands were encountered in boring Tt-2 at a depth between approximately 73 and 81.5 feet. These materials were olive in color, very dense, and wet.
7.3. Groundwater
At the time of our exploration, groundwater was not noted in exploratory boring Tt-1 to a depth of
31.5 feet prior to backfill. However, exploratory boring Tt-2 had groundwater at a depth of about
18.5 feet after being left open for several hours prior to backfill. G roundwater depths measured by Tetra Tech at the existing groundwater monitoring wells on April 15, 2022 varied from about 16 to 20 feet. Based on our review of the available groundwater monitoring well data since 1993, groundwater levels beneath the site ha ve fluctuated substantially over the year s with measured groundwater depths as shallow as 4 feet in March 2019 and as deep as 28 feet in March 2015.
Mapping by the State of California (California Department of Conservation, Division of Mines and Geology, 2002) for the San Jose West 7.5-minute Quadrangle indicates that the historic high groundwater level at the site is at a depth of about 10 feet (see Figure 6 – Historic High Groundwater Map).
A groundwater depth of 4 feet should be considered for the design of the proposed building.
Furthermore, groundwater levels may fluctuate due to seasonal variations, rainfall, irrigation, or other factors and will need to be considered during future grading operations and site construction.
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9 8. GEOLOGIC HAZARDS
8.1. General Seismic Setting
The Northern California region is known to be seismically active. Earthquakes occurring within approximately 60 miles of the site are generally capable of generating ground shaking of engineering significance to the proposed construction. The project area is located in the general proximity of several active faults as shown in Figure 7 – Regional Fault and Seismicity Map.
The closest active faults to the site include the Monte Vista -Shannon fault located approximately
6.57 miles southwest of the site, the Hayward-Rodgers Creek fault located approximately
8.85 miles north of the site, and the Calaveras fault approximately 9.81 miles to the northeast. The North San Andreas fault is the most significant fault in the area in terms of Maximum Magnitude and is located approximately 10.6 miles southwest of the site. Table 2 summarizes known active faults within a distance of engineering significance of approximately 60 miles from the project site as identified by the USGS Quaternary Fault Database and in the 2008 National Seismic Hazard Maps (
https://usgs.maps.arcgis.com/apps/webappviewer/index.html?id=5a6038b3a1684561- a9b0aadf88412fcf and https://earthquake.usgs.gov/cfusion/hazfaults_2008_search/query- _main.cfm).
8.2. Historical Earthquakes
The epicenters of a large number of historical earthquakes with a magnitude of M w 5.0 and higher
have been recorded within a 60-mile radius of site. The most significant historic earthquake near the project site was the 1906 San Francisco Mw 7.9 earthquake located about 43.7 miles northwest of the site. Table 3 summarizes historic earthquakes with a magnitude greater than Mw 6.5 within a distance of approximately 60 miles from the project site obtained using the USGS Earthquake Catalog (https://earthquake.usgs.gov/earthquakes/search/).
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10 Table 2
Summary of Active Faults
Referenced Site Latitude and Longitude: 37.346191°, -121.937395° Fault Name
Approximate
Fault Distance to Site
(miles)
Slip Sense
Maximum
Moment Magnitude
Mw
Monte Vista-Shannon 6.57 thrust 6.50
Hayward-Rodgers Creek 8.85 strike slip 7.33
Calaveras 9.81 strike slip 7.03
N. San Andreas 10.6 strike slip 8.05
Zayante-Vergeles 17.88 strike slip 7.00
Greenville Connected 24.19 strike slip 7.00
San Gregorio Connected 24.63 strike slip 7.50
Mount Diablo Thrust 27.19 thrust 6.70
Monterey Bay-Tularcitos 31.04 strike slip 7.30
Great Valley 7 34.99 thrust 6.90
Ortigalita 36.5 strike slip 7.10
Green Valley Connected 38.32 strike slip 6.80
Quien Sabe 42.87 strike slip 6.60
Great Valley 8 43.26 thrust 6.80
Great Valley 5, Pittsburg Kirby
Hills 46.47 reverse 6.70
Rinconada 47.32 strike slip 7.50
Great Valley 9 54.99 thrust 6.80
West Napa 58.9 strike slip 6.70
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11 Table 3
Historic Earthquakes in Northern California
Referenced Site Latitude and Longitude: 37.346191°, -121.937395° Year Location Earthquake
Magnitude Epicenter Location
Distance from
Site
(miles)
1989 Loma Prieta 6.9 Mw 37.036°N/-121.880°W 21.6 S
1911 2 km SE of Morgan Hill 6.5 Mw 37.111°N/-121.637°W 23.2 SE 1906 San Francisco 7.9 Mw 37.750°N/-122.550°W 43.7 NW
1868 Hayward 6.8 ML 37.700°N/-122.100°W 26.0 N-NW
1865 South of San Jose 6.5 Mw 37.200°N/-121.900°W 10.3 S 1840 Near San Juan Bautista 6.5 Mw 36.850°N/-121.500°W 41.9 SE 1838 San Francisco 7.4 Mw 37.300°N/-122.150°W 10.6 SW
Notes:
* Mw refers to Moment Magnitude scale
ML refers to Local Magnitude scale, commonly referred to as "Richter magnitude"
8.3. Seismic Hazards and Surface Fault Rupture Potential
The engineering seismology study for the subject site included reviewing local and regional fault maps, reviewing historical earthquake data, and reviewing regulatory maps prepared by the State and local governing agencies. Specifically, the following engineering seismology issues were addressed:
8.3.1. Seismic Hazards
The Seismic Hazards Mapping Act (SHMA) of 1990 directs the California Geological Survey (CGS, formerly California Department of Conservation, Division of Mines and Geology (CDMG)) to identify and map areas prone to earthquake hazards of liquefaction, earthquake -induced landslides and amplified ground shaking.
Maps of seismic hazard zones are issued by the California Geological Survey (CGS, formerly California Department of Conservation, Division of Mines and Geology (CDMG)) in accordance with the Seismic Hazards Mapping Act enacted in 199 0. The intent of the Seismic Hazards Mapping Act is to provide for a statewide seismic hazard mapping and technical advisory program to assist cities and counties in developing compliance requirements to protect the public health and safety from the effects of strong ground shaking, liquefaction, landslides, or other ground failure and other seismic hazards caused by earthquakes.
Based on the Official Seismic Hazard Zones Map, released February 7, 2002, for the San Jose West Quadrangle, the proposed development is located within an area identified by the State of Kapital Partners, LLC Due Diligence – Privileged and Confidential Project No. TET 22-235E Proposed Residential / Retail Development – 2655 The Alameda May 26, 2022
12 California as subject to the hazard of liquefaction. The site is not located within an area identified by the State of California as subject to the hazard of seismically induced landslides (see Figure 8 – Seismic Hazard Zones Map).
8.3.2. Surface Fault Rupture
Earthquake Fault Zones (known as Special Studies Zones prior to 1994) have been established in accordance with the Alquist -Priolo Special Studies Zones Act enacted in 1972. The Act directs the State Geologist to delineate the regulatory zones that encompass surface traces of active faults that have a potential for future surface fault rupture. The purpose of the Alquist -Priolo Act is to regulate development near active faults in order to mitigate the hazard of surface fault rupture.
Based on our field exploration and literature review there are no known surface traces of any active or potentially active faults that pass directly through or project towards the site . Therefore, the potential for surface rupture due to faulting occurring beneath the site is considered low.
8.4. Liquefaction Potential and Dynamic Settlement Assessment
The site, as previously discussed, is within an area identified by the State of California as subject to the hazard of liquefaction. Liquefaction of soils can be caused by ground shaking during earthquakes and is generally known to occur in saturated or nearly saturated cohesionless soils at depths shallower than about 50 feet. Research and historical data indicate that loose, relatively clean granular soils and low plasticity silts are suscepti ble to liquefaction whereas the stability of clayey silts, silty clays and clays are not typically adversely affected by ground shaking.
Dynamic settlement can occur in both unsaturated and saturated sands when loose to medium - dense granular soils tend to undergo contractive volumetric changes during ground shaking. The following sections present our assessment of liquefaction potential and dynamic settlement at the site.
8.4.1. Groundwater Level for Liquefaction Analysis
For the liquefaction analysis a groun dwater depth of 4 feet was used based on the historic high groundwater as discussed in the Groundwater section of this report.
8.4.2. Liquefaction Seismic Demand
Based on the Structural Engineers Association of California (SEAOC) and the Office of Statewide Health Planning and Development (OSHPD) website application ( https://seismicmaps.org/ ) the
seismic demand was evaluated for the site wit h latitude 37.346191° and longitude -121.937395°.
The mapped Geometric Mean Peak Ground Acceleration (PGA M) for a ground motion corresponding to the Maximum Considered Earthquake (MCE) for a Site Class E was determined to be 0.605 g. From the USGS Seismic Hazard Interactive Deaggregation website (https://earthquake.usgs.gov/hazards/interactive/) this ground motion corresponds approximately to a predominant earthquake with a magnitude of Mw 7.5. The largest contributors to the seismic hazard at the site are the Haywar d-Rodgers creek fault located about 8.85 miles northeast of the Kapital Partners, LLC Due Diligence – Privileged and Confidential Project No. TET 22-235E Proposed Residential / Retail Development – 2655 The Alameda May 26, 2022
13 site, the San Andreas fault located about 10.6 miles southwest from the site, and the Calaveras fault located about 9.81 miles northeast of the site. These ground motion parameters were used in the liquefaction analyses. A summary of the seismic demand parameters is presented in Appendix C.
8.4.3. Evaluation of Liquefaction Potential and Sensitivity Analyses
The analyses were based on SPT blowcounts obtained from the 2 exploratory borings and laboratory test results. The field SPT blowcounts were converted considering the energy ratio correction factor CE of 1.25 to reflect the hammer calibration record. The borehole diameter factor CB of 1.0 was used per SP117 based on the internal diameter of the hollow stem auger system used during drilling. The blowcounts recorded for soils driven with the 3 -inch O.D. California -type sampler with brass rings were converted to equivalent SPT blowcounts using a reduction factor of
0.7 as recommended by SP117.
The liquefaction potential of cohesionless (sandy) soils was evaluated in general accordance with the procedure published by Boulanger and Idriss and (2014) and in conformance with SP117A .
The anticipated dynamic settlement of the saturated soils was eval uated using procedure by Yoshimine et al. (2006) which was further adjusted by a calibration factor of 0.9 as recommended by Cetin (2009).
Seismic sensitivity of fine-grained soils was evaluated based on the following 3 categories:
1. Soils with Plasticity Index < 7 (typically silts) are classified as fine-grained soils susceptible to liquefaction like coarse-grained soils.
2. Soils with Plasticity Index > 18 and a degree of sensitivity S t > 6 are classified as seismically
sensitive soils susceptible to significant loss of strength during seismic shaking and require additional evaluation. The sensitivity of the on -site fine-grained soils was evaluated based on the water content, Atterberg limits, and effective vertical stresses using the procedures suggested by Terzaghi, Peck and Mesri (1996).
3. Fine-grained soils falling outside the two categories described above are considered to behave like clays and are not considered susceptible to liquefaction or cyclic softening.
Evaluation of the liquefacti on potential of granular soils and fine -grained soils with P lasticity Index less than 7 are presented in Appendix D and are summarized in Table 4 in the next section of the report. Evaluation of the sensitivity of the saturated fine -grained soils (i.e., Category 2) to ascertain the potential for cyclic softening was performed based on the boring logs for materials encountered at depths between 4 and 50 feet. Details on the sensitivity evaluation of fine-grained soils with a Plasticity Index greater than 18 are presented in Appendix D . The calculated sensitivity S
t for these soils was less than 6. Therefore, the fine -grained soils encountered in the borings are not considered to be susceptible to cyclic softening during the design earthquake event.
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14 8.4.4. Dynamic Settlement
Dynamic settlement can occur in both unsaturated and saturated sands when loose to medium - dense granular soils undergo volumetric changes during ground shaking. Dynamic settlement can occur in saturated sands due to liquefaction or in unsaturated sands due to densification of the soil matrix. The anticipated dynamic settlement of the saturated soils at the site was evaluated using SPT data from the current field exploration in accordance with the procedures outlined by Yoshimine et al (2006) and Cetin (2009).
The unsaturated dynamic settlement was calculated based on SPT data according to the procedure outlined by Pradel (1998a and 1998b). Table 4 presents the results of the liquefaction analyses and corresponding settlement evaluation as well as the dynamic settlement of unsaturated soils .
Details of dynamic settlement analyses are presented in Appendix D.
As shown in Table 4, the total (combined) dynamic settlement was estimated to be about 1.0 to
1.5 inches. The differential seismic settlement was estimated to be 0.75 inches or less over a horizontal distance of 30 feet. Therefore, structural mitigation of the total and differential seismic settlement is considered acceptable for the project design.
Table 4
Results of Liquefaction and Dynamic Settlement Analyses Boring No.
Groundwater
Depth
(feet)
Liquefiable
Zone
Depth Interval
(feet)
FSliq
Approximate Dynamic Settlement
(inches)
Saturated Soils
(liquefaction)
Unsaturated
Soils Combined
Tt-1
4 30-33 0.18 1.0
negligible
1.0 Tt-2 20-23
30-35
0.22 0.68 1.5 1.5
8.5. Lateral Spreading
Due to the level topography and the absence of free face slopes lateral spreading is not considered to be a hazard at the site.
8.6. Landslide Hazard
The site is not located within a State designated hazard zone for earthquake- induced landslides.
Due to the level topography the potential for landslides is not considered a hazard for the site.
8.7. Expansive Soils
Expansive soils are characterized by their ability to undergo significant volume changes (shrink or swell) due to variations in moisture content. Changes in soil moisture content can result from precipitation, landscape irrigation, utility leakage, roof drainage, perched groundwater, drought, Kapital Partners, LLC Due Diligence – Privileged and Confidential Project No. TET 22-235E Proposed Residential / Retail Development – 2655 The Alameda May 26, 2022
15 or other factors which can cause unacceptable settlement or heave that could adversely affect the performance of structures or slabs supported on grade.
Expansion Index (EI) testing of the surficial sandy materials within the upper 5 feet showed an EI value of 4, indicating a very low expansion potential. The Expansion Index testing of fine-grained materials i.e., clays, at a depth of 15 feet showed an EI value of 60, indicating the presence of expansive soils. For the design purposes the on-site fine-grained soils should be considered to be expansive per CBC 2019 §1803.5.3, and appropriate recommendations are provided in the Recommendations section of this report.
8.8. Collapsible Soils
The phenomenon of hydro- consolidation is typically exhibited in geologically young, unconsolidated, low -density, loose, dry soils commonly present in arid to semi -arid regions.
Collapsible soils are usually composed of granular particles that are supported by a clay or silt matrix that can be chemically cemented in place creating a porous structure. The bonds supporting this porous structure have enough shear strength to support loads at low moisture contents, however, once water is introduced the cemented bond structure breaks down and the granular particles are re-arranged causing significant volume loss.
Based on the consolidation testing it was observed that none of the samples collapsed upon wetting, therefore hydrocollapse is not considered a hazard at the site.
8.9. Tsunamis and Seiches
A tsunami is a sea wave generated by large- scale displacements of the ocean floor that causes a sudden surge of water onto the land. Tsunamis are most commonly caused by movement along faults and underwater landslides activated by earthquakes. Seiches are earthquake-induced displacements of water within an enclosed body of water such as a lake. Strong ground motions from an earthquake can cause the water to slosh back and forth onto land. The site is elevated at least 74 feet above sea level and is located at a substantial distance from a significant body of water within an enclosed basin. The site is also not located within a Tsunami Inundation Area, based on our review of the California Geological Survey Tsunami Hazard Area Map for the County of Santa Clara, dated July 8, 2021. Therefore, geologic hazards associated with a tsunami or seiches are not anticipated at the site.
8.10. Subsidence
Land subsidence is the lowering of the ground surface due to extraction or lowering of groundwater levels or other fluids (e.g., oil) within the subsurface soil pores. The fluid withdrawal causes the alluvial sediments in the basin to compact. Damage cau sed by subsidence can be visible soil cracks, fissures, or surface depression. The site is located in an area mapped by the United States Geological Survey (USGS) where either historical or current subsidence has been recorded (
https://ca.water.usgs.gov/land_subsidence/california-subsidence-areas.html). Provided that groundwater management strategies that include subsidence mitigation are being employed in the Kapital Partners, LLC Due Diligence – Privileged and Confidential Project No. TET 22-235E Proposed Residential / Retail Development – 2655 The Alameda May 26, 2022
16 area, ground subsidence beneath the site that could result in damage to future site improvements is unlikely to occur at the site.
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17 9. DESIGN RECOMMENDATIONS
9.1. General
Based on the results of the field exploration and engineering analyses, it is Tetra Tech’s o pinion that the proposed development is feasible from a geotechnical standpoint, provided that the recommendations contained in this report are incorporated into the design plans and implemented during construction. The proposed building may be supported on a conventional mat foundation established on native soils. The primary design considerations identified from a geotechnical standpoint include:
• presence of deep relatively weak and compressible fine-grained soils (i.e., lean clay);
• presence of soft/wet soil conditions that may require special handling during excavation work as well as dry back, if used as compacted fills. Subgrade improvements are also expected where soft/wet soil conditions are exposed;
• potential for the presence of shallow groundwater level during construction that may require dewatering;
• need to design for uplift pressures;
• need for temporary shoring during the subterranean level excavation; and
• presence of expansive soils at the site.
The design recommendations presented below are based on Tetra Tech’s current understanding of the project and the subsurface conditions of the site . Once the project configuration is finalized and the design is complete, Tetra Tech should review the plans and specif ications to evaluate if the geotechnical design recommendations presented herein have been incorporated as intended.
Although not considered likely to be the most efficient foundation system , alternatives to the proposed mat foundation, such as a combinat ion of ground improvements and conventional shallow foundations, or deep foundations, e.g., piles, may be utilized for the support of the building. Specific recommendations for such alternatives are available upon request.
9.2. Site Preparation
The followi ng sections present recommendations to prepare the site before the building foundations are built.
9.2.1. Clearing and Grubbing
Prior to commencement of the earthwork, the surface of areas to be graded should be cleared of any pavement, vegetation, undocumented fills, existing structures, trash and debris.
Any subterranean installations not to be preserved, such as electrical lines, pipes, utility collectors, Kapital Partners, LLC Due Diligence – Privileged and Confidential Project No. TET 22-235E Proposed Residential / Retail Development – 2655 The Alameda May 26, 2022
18 tanks, etc., should be relocated and/or abandoned in accordance with the recommendation of the Geotechnical Engineer and applicable regulations.
9.2.2. Subgrade Preparation
In order to create uniform and competent bearing conditions for the proposed building mat foundation and other site improvements , removal of undocumented existing fills and other unsuitable materials should be performed in accordance with the recommendations provided below.
• The building mat foundation will involve an excavation of about 12 to 15 feet. The total depth of excavation will need to include the depth of overexcavation required per this section. For planning purposes, it is likely that the foundation subgrade will likely expose wet and soft subgrade soils, and potentially groundwater. Therefore, subgrade stabilization will be required including the possibility of dewatering to facilitate providing a uniform, firm and unyielding subgrade. Although the soils below the mat subgrade are likely to be saturated or nearly saturated, the proposed stabilization will also help mitigate for the presence of expansive soils.
A method to stabilize the potentially wet and soft subgrade is presented in Table 5. Any dewatering system, if needed, should keep the groundwater at a depth of at least 3 feet below the bottom of the excavation (including overexcavation depth per Table 5). It is recommended that a section of the footprint be selected on a trial basis to test the effectiveness of the proposed method, before undertaking the stabilization over the whole area.
If it becomes impractical to use the method recommended in Table 5, soil stabilization could also be provided by using chemical stabilization, i.e., adding cement and/or lime to a depth of at least 2 feet below the mat subgrade.
Table 5
Method for Handling Unstable Materials at the Excavated Subgrade Step 1 Overexcavate at least 2 feet below the mat foundation bottom Step 2
Improve the soft subgrade by working in open-graded aggregate material (particle size larger than 1 inch) as much as possible/practical into the subgrade.
Step 3 Place woven geotextile, Mirafi RS580i or approved equivalent, over the exposed surface.
Step 4 Place and compact 1-foot of well-graded fill (e.g., AB, CMB) to specified compaction over the geotextile.
Step 5 Place woven geotextile, Mirafi RS580i or approved equivalent, over the exposed surface.
Step 6 Place and compact 1-foot of well-graded fill (e.g., AB, CMB) to specified compaction over the geotextile.
• New Pavement areas should be overexcavated and recompacted to a depth of at least 2 feet below the proposed pavement subgrade elevation, or to uniform competent soils, whichever is Kapital Partners, LLC Due Diligence – Privileged and Confidential Project No. TET 22-235E Proposed Residential / Retail Development – 2655 The Alameda May 26, 2022
19 deeper. To the extent practicable, the zone of overexcavation should extend a horizontal distance of at least 2 feet beyond the outside perimeter of the pavement.
• Flatwork areas including exterior flatwork slabs should be overexcavated and recompacted to a depth of at least 1 foot below the proposed subgrade elevation, or to uniform acceptable soils, whichever is deeper. To the extent practicable, the zone of overexcavation should extend a horizontal distance of at least 1 foot beyond the perimeter of the exterior slabs and other flatwork and 2 feet beyond the outside perimeter of the pavement. • E
ntrance Driveway Pavement areas where existing pavement will be replaced to full depth, no overexcavation is required. The exposed subgrade should be scarified to a depth of 6 inches, moisture-conditioned to at least 125 percent of optimum moisture content and compacted to at least 95 percent of relative compaction per ASTM D1557.
• Disturbed soils in structural and non- structural areas will likely occur after demolition of existing site improvements or during overexcavation. The disturbed soils should be overexcavated and recompacted to the total depth of the disturbed material.
9.2.3. Fill Placement
Excavated on -site soils may be re -used as compacted fill , provided they are free of organics, deleterious materials, debris and particles over 3 inches in largest dimension. In addition, site soils at a depth of 10 feet or more will likely be well over the optimum moisture content and will require drying back, if used directly as compacted fill.
Fills should be placed in loose lifts not more than 8 inches in thickness. Fill placement associated with recompaction of overexcavated soils, fill placed to achieve finish grade or subgrade, or utility trench backfill should be moisture -conditioned to at least 125 percent of the optimum moisture content if the soils are fine -grained, or moisture-conditioned wet of optimum moisture content if the soils are coarse-grained, and compacted to at least 90 percent of relative compaction per ASTM D1557.
The upper one foot of soils below pavements and flatwork should be processed and compacted to at least 95 percent of relative compaction per ASTM D1557.
Soil materials (including general fill, structural backfill, or base course materials) imported to the site should be sampled, tested, and approved by the Geotechnical Engineer prior to arrival on-site.
In general, any soils imported to the site for use as fill should be predominantly granular with fines content less than 15 percent and have an Expansion Index less than 20. Import materials should be moisture-conditioned to at least wet of the optimum moisture content and compacted to at least 90 percent of relative compaction per ASTM D1557. Additional recommendations for site grading are provided in the General Site Grading Recommendations section of this report.
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20 9.3. Excavation Characteristics, Temporary Slopes and Trench Excavations
The near surface soils are readily excavatable with conventional earth- moving equipment .
However, the soils are anticipated to become wet and soft at depths generally over 10 feet.
Therefore, special handling with track mounted equipment (i.e., excavator) will likely be required.
Depending on groundwater levels at the time construction, dewatering may also be necessary.
All trench excavations should be performed in accordance with CalOSHA regulations. The on- site soils above the groundwater level may be considered a Type B soil, as defined by the current CalOSHA soil classification.
Sides of temporary, unsurcharged excavations less than 15 feet deep should be sloped back at an inclination of 1(H):1(V) or flatter. For Type B soils benching could be used as long as the overall slope is kept at an inclination of 1(H):1(V) or flatter, however the vertical excavation bench height may not exceed 4 feet. Where space for sloped sides is not available, shoring will be necessary .
For any configurations where the depth of the excavation exceeds 15 feet, a slope stability analysis should be performed by the Geotechnical Engineer.
Stockpiled (excavated) materials should be placed no closer than half of the excavation depth or 4 feet from the top of the trench, whichever is greater. A greater setback may be necessary when considering surcharge loads such as heavy vehicles, concrete trucks and cranes. Tetra Tech should be advised of such heavy vehicle loadings so that specific setback requirements can be established for the used equipment. Alternatively, a shoring system may be designed to allow reduction in the setback distance.
The Geotechnical Engineer should observe the excavation progress so that appropriate modifications to the excavation design may be recommended, if necessary, due to conditions differing from the design assumptions.
9.4. Temporary Shored Excavations
Excavation depths for the construc tion of the proposed building are anticipated to be at a depth between 12 and 15 feet. Review of the groundwater depth from the existing monitoring wells at the site is required before construction in order to determine whether or not a dewatering system is needed. The permits for a dewatering system, if needed, will require disposing of the extracted water in accordance with local regulations.
Cantilevered shoring systems are typically suitable and practicable for retained heights less than about 15 feet. Alternatively, restrained shoring system with internal bracing may be considered.
Presented herein are design recommendations for both shoring systems. The shoring designer will need to take into account the presence of adjacent structures, utilities , conduits, and other underground structures and their impact on the installation and performance of the shoring system.
All components of the shoring system, including the penetration depth, should be designed by a specialist Civil Engineer registered in the State of California and should further satisfy Kapital Partners, LLC Due Diligence – Privileged and Confidential Project No. TET 22-235E Proposed Residential / Retail Development – 2655 The Alameda May 26, 2022
21 requirements of Cal-OSHA. It is recommended that the final shoring design be reviewed by the Geotechnical Engineer.
9.4.1. Temporary Dewatering
Recommendations are provided herein for excavations up to a depth of 15 feet which is expected to facilitate construction of the foundation subgrade. Since the groundwater depth at the site is anticipated to vary significantly throughout the year as discussed in the “Groundwater” section of this report, the actual depth of groundwater should be determined prior to construction based on groundwater depth measurements at the existing monitoring wells at the site. Since the dewatering is an important design and construction consideration, groundwater depth readings from the onsite monitoring wells should be taken prior to finaliz ing the design documents and completi ng the bidding process to conclusively establish the need for dewatering. Dewatering system should be designed to lower the groundwater to a depth of at least 3 feet below the bottom of the excavation (including any overexcavation depth) throughout the footprint of the excavation. Given the fine- grained nature of the soils, and the recommended subgrade stabilization method, if sheet piles are used, the dewatering, if needed, may likely be performed from within the excavation.
9.4.2. Shoring Design
Either sheet pile or soldier pile and lagging systems may be utilized for the proposed construction.
However, sheet piles may be more efficient if dewatering is required. Table 6 below summarizes the governing geotechnical design parameters and loading diagrams for a shoring system for both cantilever and internal bracing conditions. These geotechnical parameters were developed based on the following assumptions:
• the shored soil grade is level;
• there are no hydrostatic pressures behind the wall;
• the groundwater remains below the excavation bottom; and • the shoring is temporary.
If any of these assumed conditions cannot be met due to field conditions or the contractor’s method of construction, this office should be consulted regarding potential revisions to our recommendations. It is also noted that to protect structures located at or adjacent to the property line, the shoring designer for this zero -lot condition may consider increasing the recommended cantilevered and restrained lateral pressures by m ultiplying them by a factor of 1.5 and 1.2 respectively.
Any surcharge (live or dead load) located within a 1(H):1(V) plane drawn up from the excavation bottom should be accounted for in the calculation of the lateral earth pressures. For cantilevered and restrained shoring systems, the lateral contribution of a uniform surcharge load may be calculated by multiplying the surcharge by a factor of 0.35 and 0.46, respectively. The shoring designer for a zero-lot condition may consider increasing the recommended factors for cantilevered and restrained shoring systems by multiplying them by a factor of 1.5 and 1.2 respectively. This constant lateral load, i.e., independent of depth, should be applied throughout the whole exposed height of the sheet pile or soldier pile wall. As a minimum, 3 feet of equivalent Kapital Partners, LLC Due Diligence – Privileged and Confidential Project No. TET 22-235E Proposed Residential / Retail Development – 2655 The Alameda May 26, 2022
22 soil surcharge, i.e., 360 psf, is recommended to be included to account for nominal construction surcharge and traffic loads on the adjacent roads. In addition, due to potential partial wetting of soils during construction, it is recommended that an additional swelling pressure be included in the design of the temporary shoring as indicated in Table 6.
Table 6
Geotechnical Design Parameters
Cantilevered and Restrained Temporary Shoring
(without hydrostatic pressure build-up behind the wall) Excavation bottom depth
(including overexcavation depth) Up to 15 feet
Subsurface materials
Alluvial Soils
Mostly firm to stiff lean clays and silts to depth of 30 feet Groundwater depth during construction assumed at a depth of 3 feet below the bottom of the excavation
SHORING SYSTEM Cantilevered shoring
(excavation depth less than about 12 to 15 feet)
Restrained shoring
with internal bracing
Soil unit weight, γ 125 pcf
Design friction angle, ϕ 29o 0o
Design cohesion, c 0 psf 1,000 psf
Ka … coefficient of active lateral pressure 0.35 n/a
Stability number, Ns =
𝛾𝛾∙𝐻𝐻
𝐶𝐶 n/a 1.6-1.8
LOADING DIAGRAM ON SHORING
Equivalent fluid density, EFD 43 pcf n/a
Loading Diagram Triangular distribution
Trapezoidal load distribution
based on stability numbers (see
Diagram 1 below)
Additional Lateral Pressure due to
Potential Swelling
15 psf
(constant with depth)
ALLOWABLE PASSIVE PRESSURE BELOW EXCAVATION BOTTOM
Design friction angle, ϕ 29o
Kp … coefficient of passive lateral pressure 2.88
Arching capability * 2.0 (for design of soldier pile systems) Equivalent fluid density (pcf EFD) **
(triangular distribution)
– includes Safety Factor of 1.5
– ignore resistance within upper 12 inches
Sheet pile system: 240 / 120 (above / below groundwater) Soldier pile system (includes arching): 480 / 240 (above/below groundwater)
* Per Caltrans Trenching and Shoring Manual (2011)
** Valid without reduction for soldier pile spacing > 2.0 times the effective pile width
Kapital Partners, LLC Due Diligence – Privileged and Confidential Project No. TET 22-235E Proposed Residential / Retail Development – 2655 The Alameda May 26, 2022
23 H = Excavation depth (feet)
H1
Braces
2/3H1
σ= 0.4*γ H
Ptotal = 0.4 γ H2 -0.13 γ H H1
H2
Hn
Hn+1
Diagram 1. Lateral pressures loading for a restrained shoring with Ns = <4
The required penetration depth of the soldier or sheet pile wall below the excavation bottom may be calculated based on the estimated passive soil resistances provided in Table 6. Passive soil resistance should be ignored for the upper 12 inches below the excavation bottom to account f or potential near-surface soil disturbance.
9.4.3. Deflection
It should be realized that some shroing deflection will likely occur . However, i t is difficult to accurately predict the amount of deflection of a shored excavation because it depends not only on the shoring system design but also significantly on the quality of construction. The shoring system should be designed so that deflection at the top of the shored excavation is kept below 1 inch. If greater deflection occurs during construction, additional bracing or restraint may be necessary to minimize settlement of the nearby improvements. If it is desired to reduce the deflection of the shoring, a greater lateral earth pressure could be used for the shoring design.
9.4.4. Internal Bracing
Internal bracing can be provided with struts or rakers designed for lateral earth pressures provided in Table 6 and shown schematically in Diagram 1 for the restrained shoring system.
If used, raker bracing could be supported on temporary concrete footings. For design of temporary footings poured with the bearing surface normal to the rakers inclined at 45 to 60 degrees from the vertical, an allowable bearing capacity value of 1,700 psf may be used, provided the shallowest point of the footing is at least 1 foot below the lowest adjacent grade. To reduce the movement of the shoring wall, the rakers should be tightly wedged against the footings and shoring wall.