APPENDIX A Air Quality and Greenhouse Gas Assessment

APPENDIX A

Air Quality and Greenhouse Gas Assessment

406 East 3rd Avenue Office & Residential Mixed-Use Development Project

Air Quality and Greenhouse Gas Assessment

San Mateo, California

Prepared For: David J. Powers & Associates, Inc.

1871 The Alameda, Suite 200 San José, CA 95126

December 2018

Air Quality and Greenhouse Gas Assessment – 406 East 3rd Avenue Office and Residential Mixed-Use Development Project

ECORP Consulting Inc. 406 East 3rd Avenue Mixed-Use i December 2018

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ECORP Consulting, Inc. has assisted public and private land owners with environmental regulation compliance since 1987. We offer full service capability, from initial baseline

environmental studies through environmental planning review, permitting negotiation, liaison to obtain legal agreements, mitigation design, construction monitoring, and compliance reporting.


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CONTENTS

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

1.1 Project Description and Location.................................................................................................................. 1

2.0 AIR QUALITY .......................................................................................................................................................................... 2

2.1 Air Quality Setting ............................................................................................................................................... 2

2.2 Regulatory Framework ...................................................................................................................................... 5

2.3 Air Quality Emissions Impact Assessment .............................................................................................. 10

3.0 GREENHOUSE GAS EMISSIONS .................................................................................................................................. 31

3.1 Greenhouse Gas Setting ................................................................................................................................ 31

3.2 Regulatory Framework ................................................................................................................................... 33

3.3 Greenhouse Gas Emissions Impact Assessment .................................................................................. 36

4.0 REFERENCES ........................................................................................................................................................................ 47

LIST OF TABLES

Table 2-1. Criteria Air Pollutants- Summary of Common Sources and Effects ............................................................ 3

Table 2-2. Summary of Ambient Air Quality Data ................................................................................................................... 4

Table 2-3. Attainment Status of Criteria Pollutants in the San Francisco Bay Area Air Basin ................................ 5

Table 2-4. BAAQMD Basic and Additional Construction Mitigation Measures ........................................................... 9

Table 2-5. BAAQMD Significance Thresholds ........................................................................................................................ 10

Table 2-6. Construction-Related Criteria Air Pollutant Emissions .................................................................................. 13

Table 2-7. Operational Criteria Air Pollutant Emissions ..................................................................................................... 15

Table 2-8. Unmitigated Project-Related Fine Matter Concentration (Localized Significance Analysis) .......... 20

Table 2-9. Mitigated Project-Related Fine Matter Concentration (Localized Significance Analysis) ............... 21

Table 2-10. Maximum Operational Health Risk in the Project Vicinity ........................................................................ 24

Table 2-11. Stationary Source Health Risk Screening Analysis on Project Receptors ............................................ 26

Table 2-12. Mobile Source Health Risk Screening Analysis on Project Receptors .................................................. 27

Table 2-13. Maximum On-Site Excess Lifetime Cancer Risk, Chronic HI, and PM2.5 Concentration ................. 27

Table 3-1. Greenhouse Gases ....................................................................................................................................................... 32

Table 3-2. Construction-Related Greenhouse Gas Emissions .......................................................................................... 43

Table 3-3. Operational Greenhouse Gas Emissions ............................................................................................................. 44


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ATTACHMENTS

Attachment A – CalEEMod Output File for Air Quality & Greenhouse Gas Emissions

Attachment B – Construction-Related Fine Particulate Matter Dispersion and Concentration

Attachment C – Construction-Related Health Risk Assessment - Diesel Particulate Matter


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1.0 INTRODUCTION This report documents the results of an assessment of both air quality and greenhouse gas emissions (GHG) completed for the 406 East 3rd Avenue Office and Residential Mixed-Use Development Project (Project), which includes the demolition of an existing fast-food restaurant with drive-through (KFC) and three industrial buildings that currently occupy the site in order to allow for the construction of 119,220-square foot mixed-use building. This assessment is based on the methodology recommended by the Bay Area Air Quality Management District (BAAQMD) for project-level review and was prepared with consideration of the emissions reduction actions proposed by the Project. Information on Project-generated daily vehicle trips, the primary source of criteria air pollutant and greenhouse gas (GHG) emissions, was provided by Hexagon Transportation Consultants (2018). Criteria air pollutant emissions and GHG emissions were modeled using the California Emissions Estimator Model (CalEEMod), version 2016.3.2. Emissions modeling results are included in Attachment A. Additionally, construction-related fine particulate matter concentration and associated dispersion was modeled using the EPA’s AERMOD air toxic dispersion model and these results are included in Attachment B.

1.1 Project Location

The proposed Project site is located on ±0.88-acre site at 406 East 3rd Avenue in San Mateo, California. The site is bounded by S. Railroad Avenue to the southwest with a Caltrain railway line and commercial uses beyond, and East 3rd Avenue to the north with commercial uses beyond including an automotive care facility, a restaurant, and retail shops. Directly adjacent to the northeast corner of the irregular-shaped Project site exists retails uses and restaurants. S. Claremont Avenue traverses the site to the east with retails and restaurants beyond. To the south of the Project is the site of a recently approved four-story mixed-use building accommodating both office space and residential units, similar to the proposed Project.

The Project site currently accommodates a fast-food restaurant with drive-through and surface parking, accessed from either East 3rd Avenue or S. Railroad Avenue; as well as auto repair and industrial warehouse-related uses accessed from S Claremont Avenue. The site is surrounded by urban development and is within walking distance to the San Mateo Caltrain station and several bus-transit stops.

1.2 Project Description The Project proposes to demolish the existing fast-food restaurant, surface parking, auto repair facility and industrial warehouse-related buildings on the site and construct a new, four-story 119,220-square foot mixed-use building comprising of office space spanning 108,087 square feet of building space in the first three floors and up to 25 residential dwelling units on the fourth floor. The building is proposed to include 1,326 square feet of landscaped areas and would be served by an underground parking garage containing 179 automobile parking spaces throughout two subterranean levels. The garage would be joined to the garage recently approved as part of the four-story mixed-use building just south of the Project site. The Project will provide 36 long-term and 8 short-term bike parking spaces.

Construction of the Project would commence with demolition of the existing buildings onsite. Excavation of the Project site will be required for the 2-level underground parking garage.

The City of San Mateo General Plan designates the Project site as Downtown Retail Core Support.



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2.0 AIR QUALITY

2.1 Air Quality Setting

Air quality in a region is determined by its topography, meteorology, and existing air pollutant sources. These factors are discussed below, along with the current regulatory structure that applies to the San Francisco Bay Area Air Basin (SFBAAB), which encompasses the Project site, pursuant to the regulatory authority of the Bay Area Air Quality Management District (BAAQMD).

San Francisco Bay Area Air Basin

The City of San Mateo is located in the Peninsula climatological subregion of the SFBAAB (air basin). This subregion extends from northwest of San Jose to the Golden Gate Bridge. The Santa Cruz Mountains run up the center of the Peninsula, with elevations exceeding 2,000 feet at the southern end and decreasing to 500 feet in South San Francisco. Coastal towns experience a high incidence of cool, foggy weather in the summer. Cities in the southeastern Peninsula climatological subregion, such as San Mateo, experience warmer temperatures and fewer foggy days because the marine layer is blocked by the ridgeline to the west. In San Mateo, the blocking effect of the Santa Cruz Mountains results in variations in summertime maximum temperatures in different parts of the climatological subregion.

Two important gaps in the Santa Cruz Mountains occur on the Peninsula. The larger of the two is the San Bruno Gap, extending from Fort Funston on the ocean to San Francisco International Airport. The other gap is the Crystal Springs Gap, between Half Moon Bay and San Carlos. As the sea breeze strengthens on summer afternoons, the Crystal Springs Gap permits maritime air to pass across the mountains, and its cooling effect is commonly experienced in San Mateo.

The hills and mountains in the air basin contribute to the high pollution potential of some areas. An inversion is a layer of warmer air over a layer of cooler air. Inversions affect air quality conditions significantly because they influence the mixing depth, i.e., the vertical depth in the atmosphere available for diluting air contaminants near the ground. The highest air pollutant concentrations in the air basin, and therefore in San Mateo, generally occur during inversions.

Air pollution potential is highest along the southeastern portion of the subregion containing San Mateo, as this is the area most protected from the high winds and fog of the marine layer. Pollutant transport from upwind sites is common. In the southeastern portion of the Peninsula climatological subregion, air pollutant emissions are relatively high due to motor vehicle traffic and stationary sources (BAAQMD 2017a).

Criteria Air Pollutants

Criteria air pollutants are defined as those pollutants for which the federal and state governments have established air quality standards for outdoor or ambient concentrations to protect public health with a determined margin of safety. Ozone (O3), coarse particulate matter (PM10), and fine particulate matter (PM2.5) are generally considered to be regional pollutants because they or their precursors affect air quality on a regional scale. Pollutants such as carbon monoxide (CO), nitrogen dioxide (NO2), and sulfur dioxide (SO2) are considered to be local pollutants because they tend to accumulate in the air locally. PM



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is also considered a local pollutant. Health effects commonly associated with criteria pollutants are summarized in Table 2-1.

Table 2-1. Criteria Air Pollutants- Summary of Common Sources and Effects

Pollutant Major Man-Made Sources Human Health & Welfare Effects

CO An odorless, colorless gas formed when carbon in fuel is not burned completely; a component of motor vehicle exhaust.

Reduces the ability of blood to deliver oxygen to vital tissues, effecting the cardiovascular and nervous system. Impairs vision, causes dizziness, and can lead to unconsciousness or death.

NO2

A reddish-brown gas formed during fuel combustion for motor vehicles, energy utilities and industrial sources.

Respiratory irritant; aggravates lung and heart problems. Precursor to ozone and acid rain. Causes brown discoloration of the atmosphere.

O3

Formed by a chemical reaction between reactive organic gases (ROGs) and nitrous oxides (NOx) in the presence of sunlight. Common sources of these precursor pollutants include motor vehicle exhaust, industrial emissions, solvents, paints and landfills.

Irritates and causes inflammation of the mucous membranes and lung airways; causes wheezing, coughing and pain when inhaling deeply; decreases lung capacity; aggravates lung and heart problems. Damages plants; reduces crop yield.

PM10 & PM2.5

Power plants, steel mills, chemical plants, unpaved roads and parking lots, wood-burning stoves and fireplaces, automobiles and others.

Increased respiratory symptoms, such as irritation of the airways, coughing, or difficulty breathing; aggravated asthma; development of chronic bronchitis; irregular heartbeat; nonfatal heart attacks; and premature death in people with heart or lung disease. Impairs visibility (haze).

SO2

A colorless, nonflammable gas formed when fuel containing sulfur is burned. Examples are refineries, cement manufacturing, and locomotives.

Respiratory irritant. Aggravates lung and heart problems. Can damage crops and natural vegetation. Impairs visibility.

Source: CAPCOA 2013

Toxic Air Contaminants

In addition to the criteria pollutants discussed above, toxic air contaminants (TACs) are another group of pollutants of concern. TACs are considered either carcinogenic or noncarcinogenic based on the nature of the health effects associated with exposure to the pollutant. For regulatory purposes, carcinogenic TACs are assumed to have no safe threshold below which health impacts would not occur, and cancer risk is expressed as excess cancer cases per one million exposed individuals. Noncarcinogenic TACs differ in that there is generally assumed to be a safe level of exposure below which no negative health impact is believed to occur. These levels are determined on a pollutant-by-pollutant basis.

There are many different types of TACs, with varying degrees of toxicity. Sources of TACs include industrial processes such as petroleum refining and chrome plating operations, commercial operations such as gasoline stations and dry cleaners, and motor vehicle exhaust. Public exposure to TACs can result from emissions from normal operations, as well as from accidental releases of hazardous materials during upset conditions. The health effects of TACs include cancer, birth defects, neurological damage, and death.

According to the California Air Resources Board’s (CARB) California Almanac of Emissions and Air Quality (2005), the majority of the estimated health risk from TACs can be attributed to relatively few compounds,



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the most important being PM from diesel-fueled engines (diesel PM). Diesel PM has been identified as a human carcinogen and contains hundreds of different gaseous and particulate components, many of which are toxic. Diesel particles are so small that they penetrate deep into the lungs. Studies show that diesel PM concentrations are much higher near heavily traveled highways and intersections. Off-road construction equipment and heavy-duty trucks are considered major sources of diesel-related emissions.

Ambient Air Quality

Ambient air quality in San Mateo can be inferred from ambient air quality measurements conducted at nearby air quality monitoring stations. Existing levels of ambient air quality and historical trends and projections in the vicinity of San Mateo are documented by measurements made by the BAAQMD, the air pollution regulatory agency in the air basin that maintains air quality monitoring stations which process ambient air quality measurements.

O3, PM10, and PM2.5 are the pollutants most intensely affecting the SFBAAB. The Redwood City air quality monitoring station, approximately 5 miles to the south of San Mateo, monitors ambient concentrations of O3, PM10, and PM2.5. Ambient emission concentrations will vary due to localized variations in emission sources and climate and should be considered generally representative of ambient concentrations in San Mateo. The concentrations of pollutants monitored at this station are representative of San Mateo because it is the closest monitoring station to the city and is located in the same climatological subregion.

Table 2-2 summarizes the published data concerning O3, PM2.5, PM10 since 2015 for each year that the monitoring data is provided.

Table 2-2. Summary of Ambient Air Quality Data

Pollutant Standards 2015 2016 2017

O3

Max 1-hour concentration (ppm) 0.086 0.075 0.115

Max 8-hour concentration (ppm) (state/federal) 0.071 / 0.071 0.061 / 0.060 0.087 / 0.086

Number of days above 1-hour standard (state/federal) 0 / 0 0 / 0 2 / 0

Number of days above 8-hour standard (state/federal) 1 / 0 0 / 0 2 / 2

PM10

Max 24-hour concentration (µg/m3) (state/federal) — / — — / — — / —

Number of days above 24-hour standard (state/federal) — / — — / — — / —

PM2.5

Max 24-hour concentration (µg/m3) (state/federal) 34.6 / 34.6 19.5 / 19.5 60.8 / 60.8

Number of days above federal 24-hour standard 0 0 6.3

Source: CARB 2018 μg/m3 = micrograms per cubic meter; ppm = parts per million * = Insufficient data available



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The U.S. Environment Protection Agency (EPA) and CARB designate air basins or portions of air basins and counties as being in “attainment” or “nonattainment” for each of the criteria pollutants. Areas that do not meet the standards are classified as nonattainment areas. The National Ambient Air Quality Standards (NAAQS) are not to be exceeded more than once per year in order for an area to achieve Federal attainment status (other than the pollutants, O3, PM10, PM2.5, and those based on annual averages or arithmetic mean). The NAAQS for O3, PM10, and PM2.5 are based on statistical calculations over one- to three-year periods, depending on the pollutant. The California Ambient Air Quality Standards (CAAQS) are not to be exceeded during a three-year period in order for an area to achieve state-level attainment status. The attainment status for the SFBAAB is included in Table 2-3.

The determination of whether an area meets the state and federal standards is based on air quality monitoring data. Some areas are unclassified, which means there is insufficient monitoring data for determining attainment or nonattainment. Unclassified areas are typically treated as being in attainment. Because the attainment/nonattainment designation is pollutant specific, an area may be classified as nonattainment for one pollutant and attainment for another. Similarly, because the state and federal standards differ, an area could be classified as attainment for the federal standards of a pollutant and as nonattainment for the state standards of the same pollutant. The region is designated as a nonattainment area for the federal O3 and PM2.5 standards, and is also a nonattainment area for the state standards for O3, PM10, and PM2.5 standards (CARB 2017a).

Table 2-3. Attainment Status of Criteria Pollutants in the San Francisco Bay Area Air Basin

Pollutant State Designation Federal Designation

O3 Nonattainment Nonattainment

PM10 Nonattainment Unclassified

PM2.5 Nonattainment Nonattainment

CO Attainment Unclassified/Attainment

NO2 Attainment Unclassified/Attainment

SO2 Attainment Attainment

Source: CARB 2017a

2.2 Regulatory Framework

Federal

Clean Air Act

The Clean Air Act (CAA) of 1970 and the CAA Amendments of 1971 required the EPA to establish the NAAQS, with states retaining the option to adopt more stringent standards or to include other specific pollutants. On April 2, 2007, the Supreme Court found that carbon dioxide is an air pollutant covered by the CAA; however, no NAAQS have been established for carbon dioxide.



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These standards are the levels of air quality considered safe, with an adequate margin of safety, to protect the public health and welfare. They are designed to protect those “sensitive receptors” most susceptible to further respiratory distress such as asthmatics, the elderly, very young children, people already weakened by other disease or illness, and persons engaged in strenuous work or exercise. Healthy adults can tolerate occasional exposure to air pollutant concentrations considerably above these minimum standards before adverse effects are observed.

The EPA has classified air basins (or portions thereof) as being in attainment, nonattainment, or unclassified for each criteria air pollutant, based on whether or not the NAAQS have been achieved. If an area is designated unclassified, it is because inadequate air quality data were available as a basis for a nonattainment or attainment designation. Table 2-3 lists the federal attainment status of the SFBAAB for the criteria pollutants.

State

California Clean Air Act

The California Clean Air Act (CCAA) allows states to adopt ambient air quality standards and other regulations provided that they are at least as stringent as federal standards. CARB, a part of the California Environmental Protection Agency, is responsible for the coordination and administration of both federal and state air pollution control programs within California, including setting the CAAQS. CARB also conducts research, compiles emission inventories, develops suggested control measures, and provides oversight of local programs. CARB establishes emissions standards for motor vehicles sold in California, consumer products (such as hairspray, aerosol paints, and barbecue lighter fluid), and various types of commercial equipment. It also sets fuel specifications to further reduce vehicular emissions. CARB also has primary responsibility for the development of California’s State Implementation Plan (SIP), for which it works closely with the federal government and the local air districts.

California State Implementation Plan

The federal Clean Air Act (and its subsequent amendments) requires each state to prepare an air quality control plan referred to as the SIP. The SIP is a living document that is periodically modified to reflect the latest emissions inventories, plans, and rules and regulations of air basins as reported by the agencies with jurisdiction over them. The CAA Amendments dictate that states containing areas violating the national ambient air quality standards revise their SIPs to include extra control measures to reduce air pollution. The SIP includes strategies and control measures to attain the NAAQS by deadlines established by the Clean Air Act. The EPA has the responsibility to review all SIPs to determine if they conform to the requirements of the CAA.

State law makes CARB the lead agency for all purposes related to the SIP. Local air districts and other agencies prepare SIP elements (air quality attainment plans) and submit them to CARB for review and approval. CARB then forwards SIP revisions to the EPA for approval and publication in the Federal Register. The BAAQMD is responsible for preparing plans (SIP elements) to attain ambient air quality standards in the SFBAAB. The BAAQMD prepares ozone attainment plans for the national ozone standard



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and clean air plans for the California standard, both in coordination with the Metropolitan Transportation Commission and the Association of Bay Area Governments. With respect to applicable air quality attainment plans, the BAAQMD prepared the Bay Area 2017 Clean Air Plan. The 2017 Plan provides a regional strategy to protect public health and protect the climate. To protect public health, the 2017 Clean Air Plan describes how BAAQMD will continue progress toward attaining all state and federal air quality standards and eliminating health risk disparities from exposure to air pollution among Bay Area communities. To protect the climate, the 2017 Clean Air Plan defines a vision for transitioning the region to a post-carbon economy needed to achieve ambitious greenhouse gas reduction targets for 2030 and 2050 and provides a regional climate protection strategy that will put the Bay Area on a pathway to achieve those greenhouse gas emissions reduction targets.

The 2017 Clean Air Plan includes a wide range of control measures designed to decrease emissions of the air pollutants that are most harmful to Bay Area residents, such as particulate matter, ozone, and toxic air contaminants; to reduce emissions of methane and other “super-GHGs” that are potent climate pollutants in the near-term; and to decrease emissions of carbon dioxide by reducing fossil fuel combustion.

Local

Bay Area Air Quality Management District

The BAAQMD attains and maintains air quality conditions in the SFBAAB through a comprehensive program of planning, regulation, enforcement, technical innovation, and promotion of the understanding of air quality issues. The BAAQMD’s clean air strategy includes the preparation of plans for the attainment of ambient air quality standards, adoption and enforcement of rules and regulations concerning sources of air pollution, and issuance of permits for stationary sources of air pollution. The BAAQMD also inspects stationary sources of air pollution, responds to citizen complaints, monitors ambient air quality and meteorological conditions, and implements programs and regulations required by the federal Clean Air Act, the Clean Air Act Amendments, and the California Clean Air Act.

Rules and Regulations

The BAAQMD develops regulations to improve air quality and protect the health and welfare of Bay Area residents and their environment. BAAQMD rules and regulations most applicable to the Project area include, but are not limited to, the following:

Regulation 2, Rule 2: New Source Review. Requires any new source resulting in an increase of any criteria pollutant to be evaluated for adherence to best available control technology.

Regulation 2, Rule 5: New Source Review of Toxic Air Contaminants. Requires all new and modified sources of TAC to be evaluated for emissions in order to evaluate potential public exposure and health risk, to mitigate potentially significant health risks resulting from these exposures, and to provide net health risk benefits by improving the level of control when existing sources are modified or replaced.



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Regulation 7: Odorous Substances. Establishes general limitations on odorous substances and specific emission limitations on certain odorous compounds.

Regulation 8, Rule 3: Architectural Coatings. Limits the quantity of volatile organic compounds in architectural coatings supplied, sold, offered for sale, applied, solicited for application, or manufactured for use within the district.

Regulation 8, Rule 15: Emulsified and Liquid Asphalts. Limits the emissions of volatile organic compounds caused by the use of emulsified and liquid asphalt in paving materials and paving and maintenance operations.

Regulation 14: Mobile Source Emissions Reduction Measures. Includes measures to reduce emissions of air pollutants from mobile sources by reducing motor vehicle use and/or promoting the use of clean fuels and low-emission vehicles.

The above list includes rules and regulations most applicable to the proposed development of the Project. Additional rules and regulations may apply, depending on the sources proposed and the activities conducted.

BAAQMD Construction Mitigation Measures

The BAAQMD recommends quantifying a proposed project’s construction-generated emissions by implementing the Basic Construction Mitigation Measures as mitigation for dust and exhaust construction impacts in California Environmental Quality Act (CEQA) compliance documentation. If additional construction measures are required to reduce construction-generated emissions, the Additional Construction Mitigation Measures should then be applied. Table 2-4 identifies the Basic and Additional Construction Mitigation Measures. In addition, all projects must implement any applicable air toxic control measures. For example, projects that have the potential to disturb asbestos (from soil or building materials) must comply with all the requirements of CARB’s air toxic control measures for construction, grading, quarrying, and surface mining operations.



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Table 2-4. BAAQMD Basic and Additional Construction Mitigation Measures

BAAQMD Basic Construction Mitigation Measures

All exposed surfaces (e.g., parking areas, staging areas, soil piles, graded areas, and unpaved access roads) shall be watered two times per day.

All haul trucks transporting soil, sand, or other loose material off-site shall be covered.

All visible mud or dirt track-out onto adjacent public roads shall be removed using wet power vacuum street sweepers at least once per day. The use of dry power sweeping is prohibited.

All vehicle speeds on unpaved roads shall be limited to 15 mph.

All roadways, driveways, and sidewalks to be paved shall be completed as soon as possible. Building pads shall be laid as soon as possible after grading unless seeding or soil binders are used.

Idling times shall be minimized either by shutting equipment off when not in use or reducing the maximum idling time to 5 minutes (as required by the California airborne toxics control measure Title 13, Section 2485 of California Code of Regulations [CCR]). Clear signage shall be provided for construction workers at all access points.

All construction equipment shall be maintained and properly tuned in accordance with manufacturer’s specifications. All equipment shall be checked by a certified visible emissions evaluator.

Post a publicly visible sign with the telephone number and person 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.

BAAQMD Additional Construction Mitigation Measures

All exposed surfaces shall be watered at a frequency adequate to maintain minimum soil moisture of 12 percent. Moisture content can be verified by lab samples or moisture probe.

All excavation, grading, and/or demolition activities shall be suspended when average wind speeds exceed 20 mph.

Wind breaks (e.g., trees, fences) shall be installed on the windward side(s) of actively disturbed areas of construction. Wind breaks should have at maximum 50 percent air porosity.

Vegetative ground cover (e.g., fast-germinating native grass seed) shall be planted in disturbed areas as soon as possible and watered appropriately until vegetation is established.

The simultaneous occurrence of excavation, grading, and ground-disturbing construction activities on the same area at any one time shall be limited. Activities shall be phased to reduce the numbert of disturbed surfaces at any one time.

All trucks and equipment, including their tires, shall be washed off prior to leaving the site.

Site accesses to a distance of 100 feet from the paved road shall be treated with a 6- to 12-inch compacted layer of wood chips, mulch, or gravel.

Sandbags or other erosion control measures shall be installed to prevent silt runoff to public roadways from sites with a slope greater than one percent.

Minimizing the idling time of diesel-powered construction equipment to 2 minutes.

The project shall develop a plan demonstrating that the off-road equipment (more than 50 horsepower) to be used in the construction project (i.e., owned, leased, and subcontractor vehicles) would achieve a project wide fleet-average 20 percent NOx reduction and 45 percent PM reduction compared to the most recent CARB fleet average. Acceptable options for reducing emissions include the use of late model engines, low-emission diesel products,

Use low VOC (i.e., ROG) coatings beyond the local requirements (i.e., Regulation 8, Rule 3: Architectural Coatings).

Requiring that all construction equipment, diesel trucks, and generators be equipped with Best Available Control Technology for emission reductions of NOx and PM.

Requiring all contractors use equipment that meets CARB’s most recent certification standard for off-road heavy-duty diesel engines. Source: BAAQMD 2017a



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2.3 Air Quality Emissions Impact Assessment

Thresholds of Significance

The impact analysis provided below is based on the following California Environmental Quality Act (CEQA) Guidelines Appendix G thresholds of significance. The Project would result in a significant impact to air quality if it would:

1) Violate any air quality standard or contribute substantially to an existing or projected air quality violation.

2) Conflict with or obstruct implementation of any applicable air quality plan.

3) Expose sensitive receptors to substantial pollutant concentrations.

4) Create objectionable odors affecting a substantial number of people.

5) Result in a cumulatively considerable net increase of any criteria pollutant for which the Project region is nonattainment under an applicable federal or state ambient air quality standard (including releasing emissions which exceed quantitative thresholds for ozone precursors).

BAAQMD Thresholds

The significance criteria established by the applicable air quality management or air pollution control district (BAAQMD) may be relied upon to make the above determinations. According to the BAAQMD, an air quality impact is considered significant if the proposed Project would violate any ambient air quality standard, contribute substantially to an existing or projected air quality violation, or expose sensitive receptors to substantial pollutant concentrations. The BAAQMD has established thresholds of significance for air quality for construction and operational activities of land use development projects such as that proposed, as shown in Table 2-5.

Table 2-5. BAAQMD Significance Thresholds

Air Pollutant Construction Activities Operations

Reactive Organic Gases (ROG) 54 pounds/day 54 pounds/day 10 tons/year

Nitrogen Oxides (NOx) 54 pounds/day 54 pounds/day 10 tons/year

Coarse Particulates (PM10) 82 pounds/day (exhaust PM10) 82 pounds/day 15 tons/year

Fine Particulates (PM2.5) 54 pounds/day (exhaust PM2.5) 54 pounds/day 10 tons/year

Fugitive Dust Particulate Matter BAAQMD Best Management Practices None None

Carbon Monoxide (CO) None None None

Sulfur Oxides (SOx) None None None

Source: BAAQMD 2017a



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CO Hotspot Analysis

In addition to the significance thresholds listed above, the Project would be subject to the ambient air quality standards. These are addressed though an analysis of localized CO impacts. The California 1-hour and 8-hour carbon monoxide standards are:

1-hour = 20 parts per million

8-hour = 9 parts per million

The significance of localized impacts depends on whether ambient CO levels in the vicinity of the Project site are above state and federal carbon monoxide standards. CO concentrations in the SFBAAB no longer exceed the state ambient air quality standards (CAAQS) or national ambient air quality standards (NAAQS) criteria, and the air basin has been designated as attainment under the 1-hour and 8-hour standards.

PM2.5 and Toxic Air Contaminant Thresholds

In addition to the above thresholds relating to criteria air pollutants and CO hot spots, this report evaluates the Project’s impacts with respect to TACs. The BAAQMD regulates levels of air toxics through a permitting process that covers both construction and operation. If emissions of TACs exceed an excess cancer risk level of more than 10 in one million or a non-cancer hazard index greater than 1.0, the Project would result in a significant impact. In addition, BAAQMD promulgates a maximum annual average concentration of 0.3 µg/m3 of PM2.5 at a project boundary.

Methodology

Air quality impacts were assessed in accordance with methodologies recommended by CARB and the BAAQMD. Where criteria air pollutant quantification was required, emissions were modeled using the California Emissions Estimator Model (CalEEMod), version 2016.3.2. CalEEMod is a statewide land use emissions computer model designed to quantify potential criteria pollutant emissions associated with both construction and operations from a variety of land use projects. Project construction-generated air pollutant emissions were primarily calculated using CalEEMod model defaults. Additionally, construction-related fine particulate matter concentration and associated dispersion was modeled using the EPA’s AERMOD air toxic dispersion model. AERMOD is a steady-state plume model that incorporates air dispersion based on planetary boundary layer turbulence structure and scaling concepts, including treatment of both surface and elevated sources, and both simple and complex terrain. Further, construction-generated DPM emissions were also modeled for its concentration and dispersion using AERMOD. The resultant concentration values were then used to calculate chronic and carcinogenic health risk using the standardized equations contained in the California Office of Environmental Health Hazard Assessment’s (OEHHA) Guidance Manual for Preparation of Health Risk Assessments (2015).

Operational air pollutant emissions were modeled with CalEEMod based on the Project site plans and automobile trip rates identified in the Transportation Impact Analysis prepared for the Project by Hexagon Transportation Consultants (2018). For the purposes of this analysis, projected operational emissions



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associated with proposed operations are compared to the existing baseline, which includes a fast-food restaurant with drive-through, auto repair facility, industrial warehouse, and surface parking.

The analysis of operational TAC impacts uses the BAAQMD’s Roadway Screening Analysis Calculator (2015a), Railway Screening Analysis Tool (2015b), Stationary Source Screening Analysis Tool (2012a), and Distance Adjustment Multiplier (2012b). BAAQMD screening tools provide conservative estimates of health impacts associated with off-site sources. Per BAAQMD guidance, the cancer risk values were scaled to consider the 2015 OEHHA guidance. The 2015 OEHHA Health Risk Assessment Guidelines is a description of the algorithms, recommended exposure variates, cancer and noncancer health values, and the air modeling protocols needed to perform a health risk assessment under the Air Toxics Hot Spots Information and Assessment Act of 1987 (Health and Safety Code Section 44300 et seq.) and the Children’s Environmental Health Protection Act of 1999 (Health and Safety Code Section 39606). OEHHA procedures describe the toxicity factors associated with various substances, how these toxicity factors are to be used to determine the acute, chronic, and cancer risks associated with downwind concentrations of chemicals in the air at various receptors, and dispersion modeling procedures. As previously described, construction TACs are evaluated using the EPA’s AERMOD air toxic dispersion model.

Impact Analysis

PROJECT CONSTRUCTION-GENERATED CRITERIA AIR QUALITY EMISSIONS Construction Significance Analysis

Construction-generated emissions are temporary and short term but have the potential to represent a significant air quality impact. Three basic sources of short-term emissions will be generated through the proposed demolition activities and construction of the proposed Project: operation of the construction vehicles (i.e., excavators, trenchers, dump trucks), the creation of fugitive dust during clearing and grading, and the use of asphalt or other oil-based substances during paving activities. Construction activities such as excavation and grading operations, construction vehicle traffic, and wind blowing over exposed soils would generate exhaust emissions and fugitive particulate matter emissions that affect local air quality at various times during construction. Effects would be variable depending on the weather, soil conditions, the amount of activity taking place, and the nature of dust control efforts. The dry climate of the area during the summer months creates a high potential for dust generation. Construction of the Project would commence with demolition of the existing fast-food restaurant, auto repair facility, industrial warehouse, and asphalted surface parking lot. It is estimated that this on-site demolition would result in the hauling of 768 tons of demolished material off-site. Once demolition is completed, excavation would begin on the 2-level underground parking garage. Based on the Project Plans it is estimated that this excavation would result in the need to haul 53,302 cubic yards of soil from the Project site. Construction-generated emissions associated the proposed Project were calculated using the CARB-approved CalEEMod computer program, which is designed to model emissions for land use development projects, based on typical construction requirements. See Attachment A for more



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information regarding the construction assumptions, including construction equipment and duration, used in this analysis. Predicted maximum daily construction-generated emissions for the proposed Project are summarized in Table 2-6. Construction-generated emissions are short term and of temporary duration, lasting only as long as construction activities occur, but would be considered a significant air quality impact if the volume of pollutants generated exceeds the BAAQMD’s thresholds of significance.

Table 2-6. Construction-Related Criteria Air Pollutant Emissions

Construction Year

Pollutant (pounds per day)

ROG NOX Exhaust

PM10 Exhaust

PM2.5 Fugitive Dust

PM10 Fugitive Dust

PM2.5

Project Construction 17.76 40.24 1.06 0.98 1.43 0.50

BAAQMD Significance Threshold

54 pounds/day

54 pounds/day

82 pounds/day

54 pounds/day

Basic Construction

Mitigation Measures

Basic Construction

Mitigation Measures

Exceed BAAQMD Threshold? No No No No No No

Source: CalEEMod version 2016.3.2. Refer to Attachment A for Model Data Outputs. Notes: Emissions estimates account for the demolition of 12,510 square feet of structures and 193 tons of asphalt associated with the

existing surface parking lot. Emissions also account for the export of 53,302 cubic yards of soil associated with excavation of the below-grade parking structure. Building construction, paving, and architectural coating assumed to occur simultaneously. All construction projects in San Mateo are required to implement the BAAQMD’s Basic Construction Mitigation Measures as a condition of project approval. Emissions estimates account for the quantifiable components of the BAAQMD’s Basic Construction Mitigation Measures, specifically watering unpaved portions of the construction site twice daily, limiting off-road equipment to speeds of 15 mph, and removing dirt track-out on adjacent public roads with a wet power vacuum once daily.

All construction projects in San Mateo are required to implement the BAAQMD’s Basic Construction Mitigation Measures (see Table 2-4) as a condition of Project approval; therefore, the proposed Project would conform to BAAQMD recommendations related to fugitive dust emissions. As shown in Table 2-6, all criteria pollutant emissions would remain below their respective thresholds during Project construction. Therefore, criteria pollutant emissions generated during Project construction would not result in a violation of air quality standards.

PROJECT OPERATIONS CRITERIA AIR QUALITY EMISSIONS Operational Significance Analysis

Implementation of the Project would result in long-term operational emissions of criteria air pollutants such as PM10, PM2.5, CO, and SO2 as well as ozone precursors such as ROG and NOX. Project-generated emissions would be predominantly associated with motor vehicle use. Long-term operational emissions attributable to the proposed Project are summarized in Table 2-7. As previously described, projected emissions associated with proposed operations are compared to the existing baseline, which includes the



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current operation of an existing fast-food restaurant with drive-through, auto repair facility, and industrial warehouse building.



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Table 2-7. Operational Criteria Air Pollutant Emissions

Emission Source Pollutant

ROG NOX CO SO2 PM10 PM2.5

Proposed Mixed-Use Building 25 Residential Apartments, Office Space (108,087 square feet), and 2-Level Subterranean Parking Garage (179 spaces)

Summer Emissions (Pounds per Day)

Proposed Project 4.61 3.18 10.95 0.02 1.94 0.58

Winter Emissions (Pounds per Day)


Annual Emissions (Tons per Year)


Existing Fast-Food Restaurant with Drive-Through, Auto Repair Facility, and Industrial Warehouse Building


Existing Baseline 0.92 1.49 4.51 0.01 1.03 0.29





Difference


Difference 3.69 1.69 6.44 0.01 0.91 0.29

BAAQMD Daily Significance Threshold 54 pounds/day

54 pounds/day

None None 82 pounds/day

54 pounds/day

Exceed BAAQMD Daily Threshold? No No No No No No


Difference 3.63 1.77 7.02 0.01 0.91 0.29

BAAQMD Daily Significance Threshold 54 pounds/day

54 pounds/day

None None 82 pounds/day

54 pounds/day



Difference 0.5 0.2 0.6 0.0 0.1 0.0

BAAQMD Annual Significance Threshold 10 tons/year

10 tons/year

None None 15 tons/year

10 tons/year


Source: CalEEMod version 2016.3.2. Refer to Attachment A for Model Data Outputs. Notes: Emissions projections account for a trip generation rate identified by Hexagon Transportation Consultants 2018. Project emissions

account for adherence to the 2016 California Title 24 Building Energy Efficiency Standards; Existing Baseline emissions do not.



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As shown in Table 2-7, the Project’s net emissions over the existing baseline would not exceed BAAQMD thresholds for any criteria air pollutants. Therefore, the Project’s operational emissions would not exceed any BAAQMD thresholds for any criteria air pollutants and therefore would not result in a violation of air quality standards.

CONFLICT WITH THE 2017 CLEAN AIR PLAN

As part of its enforcement responsibilities, the EPA requires each state with nonattainment areas to prepare and submit a SIP that demonstrates the means to attain the federal standards. The SIP must integrate federal, state, and local plan components and regulations to identify specific measures to reduce pollution in nonattainment areas, using a combination of performance standards and market-based programs. Similarly, under state law, the California Clean Air Act requires an air quality attainment plan to be prepared for areas designated as nonattainment with regard to the federal and state ambient air quality standards. Air quality attainment plans outline emissions limits and control measures to achieve and maintain these standards by the earliest practical date.

As previously stated, the BAAQMD prepared the Bay Area 2017 Clean Air Plan, a regional strategy to protect public health from air pollutants and protect the climate. The 2017 Clean Air Plan includes a wide range of control measures designed to decrease emissions of the air pollutants that are most harmful to Bay Area residents, such as particulate matter, ozone, and toxic air contaminants. Criteria for determining consistency with the Clean Air Plan are defined by the following indicators:

Consistency Criterion No. 1: The Project supports the primary goals of the Clean Air Plan.

Consistency Criterion No. 2: The Project conforms to applicable control measures from the Clean Air Plan and does not disrupt or hinder the implementation of any Clean Air Plan control measures.

The primary goals to which Consistency Criterion No. 1 refer are compliance with the state ambient air quality standards (CAAQS) and the national ambient air quality standards (NAAQS). As evaluated above, the Project would not exceed the short-term construction standards. Similarly, the Project would not exceed the long-term operational standards and would not violate air quality standards during Project operation. Thus, no impact would occur concerning Criterion No. 1.

Regarding Consistency Criterion No. 2, consistency of the proposed Project with 2017 Clean Air Plan is demonstrated by assessing whether the Project supports all of the Project-applicable Clean Air Plan control measures. The control strategies of the Clean Air Plan include Stationary Source Measures, Mobile Source Measures, and Transportation Control Measures. The 2017 Clean Air Plan also identifies two additional subcategories of control measures, which are Land Use and Local Impact Measures, which address the exposure of sensitive receptors to toxic air contaminants, and Energy and Climate Measures, which address greenhouse gas emissions.

Stationary Source Measures in the Clean Air Plan, such as those implemented to control emissions from metal melting facilities, cement kilns, refineries, and glass furnaces, are not applicable to the proposed Project. Therefore, consistency with the Clean Air Plan Stationary Source Measures is not evaluated further.



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Transportation and Mobile Source Control Measures

The BAAQMD identifies transportation and mobile source control measures as part of the Clean Air Plan to reduce ozone precursor emissions from these sources. The transportation control measures are designed to reduce emissions from motor vehicles by reducing vehicle trips and vehicle miles traveled (VMT) in addition to vehicle idling and traffic congestion. The proposed Project is consistent with the Clean Air Plan’s transportation and mobile source control measures in that it is the redevelopment of an existing urban environment. The Project is considered ‘infill development’ as it proposes to redevelop a built-out property and enhance the physical design of the urban environment. Under Public Resources Code (PRC) section 21061.3, an “infill site” is defined as a site that “has been previously developed for qualified urban uses.” In turn, a “qualified urban use” is defined, pursuant to PRC section 21072, as “any residential, commercial, or public institutional, transit or transportation passenger facility, or retail use, or any combination of those uses.” Additionally, the Project site is located in an “urbanized area,” which is defined under PRC section 21071 as “an incorporate city” that meets the criteria of having a population of at least 100,000 persons.

The proposed Project would provide a convenient proximity to transit options for its residents. For instance, the Project is located approximately 1,100 feet from the San Mateo Caltrain station, which is approximately a five to ten-minute walk. Caltrain provides service with approximately 20- to 30-minute headways during the weekday AM and PM commute hours and 60-minute headways midday, at nights and on weekends (Hexagon 2018). Sidewalks exist between the Project site and the Caltrain station. Additionally, there are four bus transit stops in close proximity (<800 feet). Access between these bus stops and the Project site is provided via sidewalks located along both sides of East 3rd Avenue, S. Claremont Avenue, and E. 4th Avenue. The Project site is served by Routes 250, 252, 292, and 295. These routes run throughout the day and provide frequent and reliable transit service to and from nearby employment centers and retail areas. The increased transit accessibility would result in fewer vehicle trips and VMT compared to the statewide average and encourage walking and non-automotive forms of transportation and would result in corresponding reductions in transportation-related emissions.

Pedestrian facilities near the Project site consist of sidewalks along both sides of all roadways, as well as crosswalks at all signalized intersections. Signalized intersections in downtown San Mateo between San Mateo Drive and Delaware Street all have a pedestrian leading interval. Within the immediate vicinity of the Project site, the intersections along S. Claremont Drive at 3rd Avenue and at 4th Avenue both have bulbouts that reduce the crosswalk lengths and pedestrian exposure to traffic.

The Project would also provide 36 long-term bicycle parking spaces and 8 short-term bicycle parking spaces to encourage utilization of alternative modes of transportation. Within the vicinity of the Project site, a Class I bicycle path exists beginning on East 3rd Avenue and spanning from Humboldt Street to Norfolk Avenue providing linkage to the east side of Highway 101. Class II bicycle lanes exist on Laurel Avenue from 5th Avenue to 9th Avenue, Delaware Street south of 5th Avenue, S. Claremont Street south of 9th Avenue, 9th Avenue east of B Street, Palm Avenue south of 9th Avenue, and 3rd Avenue west of Dartmouth Road. Class III bicycle routes exist on Delaware Street north of 5th Avenue, on S. Claremont Street north of 9th Avenue, on B Street between 9th Avenue and Baldwin Avenue, on San Mateo Drive



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between 5th Avenue and Poplar Avenue, and on 5th Avenue between San Mateo Drive and Delaware Street.

The proposed Project would also provide a convenient proximity to retail and entertainment options for its residents and employees. The Project is also located in Downtown San Mateo, and thus within easy access to restaurants, retail stores, and other services in the immediate vicinity of the Project site. These services are conveniently located for residents of the proposed Project to access via walking, which will further reduce the number of vehicle trips.

The Project would co-locate complementary office and residential land uses in close to proximity to existing off-site office, commercial and residential uses. The Project would include on-site jobs and residential land uses and would be located within an area surrounded by other off-site office/commercial and residential uses. The Project site is also located within 0.3 mile of Central Park. The increases in land use diversity and mix of uses on the Project site would reduce vehicle trips and VMT by encouraging walking and non-automotive forms of transportation, which would result in corresponding reductions in transportation-related emissions.

These aspects of the Project would result in the generation of a reduced amount of air pollutants. According to the EPA, redevelopments produce 32 to 57 percent less air pollutant emissions per capita relative to conventional developments; this is because the number of daily vehicle trips and daily VMT associated with redevelopments tend to be lower compared with development on vacant land (EPA 2011). As a result, the proposed Project would not conflict with the identified transportation and mobile source control measures of the Clean Air Plan.

Land Use and Local Impact Measures

The BAAQMD Clean Air Plan includes Land Use and Local Impact Measures to ensure that planned growth is focused in a way that protects people from exposure to air pollution associated with stationary and mobile sources of emissions and to promote mixed-use, compact development to reduce motor vehicle travel and emissions. The Land Use and Local Impact Measures identified by the BAAQMD are not specifically applicable to the proposed Project as they relate to actions the BAAQMD will take to reduce impacts from goods movement and health risks in affected communities at the plan level. The measures also detail new regulatory actions the BAAQMD will undertake related to land use, including updates to the CEQA Air Quality Guidelines, and indirect source review.

However, the proposed Project would be a redevelopment infill development Project in support of these measures. For instance, the Project can be identified for its “location efficiency”. Location efficiency describes the location of the Project relative to the type of urban landscape its proposed to fit within, such as an ‘urban area’, ‘compact infill’, or ‘suburban center’. In general, compared to the statewide average, a project could realize VMT reductions up to 65 percent in an urban area, up to 30 percent in a compact infill area, or up to 10 percent in a suburban center (CAPCOA 2017). The Project site represents an urban/compact infill location within the central portion of San Mateo. The Project site is served by existing public transportation as previously described, it is within an active urban center surrounded with many existing off-site office/commercial and residential buildings. The Project would co-locate complementary office and residential land uses in close to proximity to existing off-site office/commercial and residential



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uses; therefore, in addition to providing future Project residents with potential work opportunities and commercial service options both on the Project site and in close proximity to the site, the Project would also provide job options to the existing, nearby residents currently living near the site. The location efficiency of the Project site would result in synergistic benefits that would reduce vehicle trips and VMT compared to the statewide average and would result in corresponding reductions in transportation-related emissions.

The Project would increase density in the vicinity over current conditions. Increased density, measured in terms of persons, jobs, or dwelling units per unit area, reduces emissions associated with transportation as it reduces the distance people travel for work or services and provides a foundation for the implementation of other strategies such as enhanced transit services. The Project would increase the site density to 25 dwelling units on top of an additional 108,087 square feet of office space.

For these reasons, the Project would not conflict with any of the Land Use and Local Impact Measures of the Bay Area Clean Air Plan.

Energy and Climate Control Measures

The Clean Air Plan also includes Energy and Climate Control Measures, which are designed to reduce ambient concentrations of criteria pollutants and reduce emissions of carbon dioxide. Implementation of these measures is intended to promote energy conservation and efficiency in buildings throughout the community, promote renewable forms of energy production, reduce the “urban heat island” effect by increasing reflectivity of roofs and parking lots, promote the planting of (low-VOC-emitting) trees to reduce biogenic emissions, lower air temperatures, provide shade, and absorb air pollutants. The measures include voluntary approaches to reduce the heat island effect by increasing shading in urban and suburban areas through the planting of trees. The proposed Project would include landscaping on each level of the proposed building including 7 trees on the ground level and 1,326 square feet of landscaped area, which would help reduce the urban heat island effect. In addition, the proposed Project would include photovoltaic (PV) solar panels on the rooftop in compliance with the San Mateo Municipal Code. Furthermore, the proposed building would be built to 2016 Title 24 Building Energy Efficiency Standards. The 2016 Building Energy Efficiency Standards are 28 percent more efficient than previous 2013 Standards for residential construction and 5 percent better for nonresidential construction. The 2013 Standards were 25 percent more efficient than the 2010 Standards. Energy-efficient buildings require less electricity, and increased energy efficiency reduces fossil fuel consumption and decreases criteria air pollutant emissions. Therefore, the proposed Project would not conflict with the BAAQMD Energy and Climate Control Measures.

For these reasons, the proposed Project would conform to the Project-applicable control measures in the Clean Air Plan and would not disrupt or hinder the implementation of any other control measures.

EXPOSURE OF SENSITIVE RECEPTORS TO TOXIC AIR CONTAMINANTS

Sensitive receptors are defined as facilities or land uses that include members of the population that are particularly sensitive to the effects of air pollutants, such as children, the elderly, and people with illnesses. Examples of these sensitive receptors are residences, schools, hospitals, and daycare centers. CARB has



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identified the following groups of individuals as the most likely to be affected by air pollution: the elderly over 65, children under 14, athletes, and persons with cardiovascular and chronic respiratory diseases such as asthma, emphysema, and bronchitis.

Construction-Generated Air Contaminants

Construction-related activities would result in temporary, short-term Project-generated emissions of diesel particulate matter (DPM) from the exhaust of off-road, heavy-duty diesel equipment for site preparation (e.g., excavation, grading); soil hauling truck traffic; paving; application of architectural coatings; and other miscellaneous activities. For construction activity, DPM is the primary TAC of concern. Particulate exhaust emissions from diesel-fueled engines (i.e., DPM) were identified as a TAC by the CARB in 1998. The potential cancer risk from the inhalation of DPM, as discussed below, outweighs the potential for all other health impacts (i.e., non-cancer chronic risk, short-term acute risk) and health impacts from other TACs. Construction would also result in the generation of fugitive dust.

As previously described, construction of the Project would commence with demolition of the existing fast-food restaurant, auto repair facility, industrial warehouse, and asphalted surface parking lot. Once demolition is completed, excavation would begin on the 2-level underground parking garage. Based on the Project Plans it is estimated that this excavation would result in the need to haul 53,302 cubic yards of soil from the Project site. Paving and structure construction would begin after excavation. BAAQMD promulgates a maximum annual average concentration of 0.3 µg/m3 of PM2.5 at a project boundary from such activity. In order to compare the Project to this localized, concentration-based threshold, PM2.5 concentrations associated with Project construction were modeled with the AERMOD dispersion model (see Attachment B). The AERMOD program generated an estimate of annual average concentrations using a 1-year data file of hourly weather observations recorded at the San Francisco International Airport. The predicted annual average period concentration of fine particulate matter emissions resulting from the proposed Project are summarized in Table 2-8.

Table 2-8. Unmitigated Project-Related Fine Matter Concentration (Localized Significance Analysis)

Activity Maximum Project Boundary Pollutant Concentration (µg/m3)

PM2.5

Project Construction1 0.5 µg/m3

BAAQMD Significant Impact Threshold 0.3 µg/m3

Exceed BAAQMD Threshold? Yes

Source: AERMOD v. 9.6. Refer to Attachment B for Model Data Outputs. Notes: 1 Concentration values represent maximum concentrations. Fine particulate matter emission factors derived from ‘unmitigated’

Project-CalEEMod results identified in Attachment A. All construction projects in San Mateo are required to implement the BAAQMD’s Basic Construction Mitigation Measures as a condition of project approval. Emissions estimates account for the quantifiable components of the BAAQMD’s Basic Construction Mitigation Measures, specifically watering unpaved portions of the construction site twice daily, limiting off-road equipment to speeds of 15 mph, and removing dirt track-out on adjacent public roads with a wet power vacuum once daily.

As shown, the BAAQMD threshold of 0.3 µg/m3 of PM2.5 at the Project boundary would be surpassed. This would be considered a potentially significant impact and require mitigation to reduce emissions to a level below the established threshold. PM2.5 emissions are generated both by the disturbance of soil (fugitive



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dust PM2.5), as well as from the operation of construction equipment (exhaust PM2.5 or DPM). Exhaust PM2.5 emissions are primarily associated with the use of diesel-powered construction equipment (e.g., graders, excavators, rubber-tired dozers, tractors, loaders, backhoes). The Clean Air Act of 1990 directed the US Environmental Protection Agency (EPA) to study, and regulate if warranted, the contribution of off-road internal combustion engines to urban air pollution. The first federal standards (Tier 1) for new off-road diesel engines were adopted in 1994 for engines over 50 horsepower and were phased in from 1996 to 2000. In 1996, a Statement of Principles pertaining to off-road diesel engines was signed between the EPA, the California Air Resources Board (CARB), and engine makers (including Caterpillar, Cummins, Deere, Detroit Diesel, Deutz, Isuzu, Komatsu, Kubota, Mitsubishi, Navistar, New Holland, Wis-Con, and Yanmar). On August 27, 1998, the EPA signed the final rule reflecting the provisions of the Statement of Principles. The 1998 regulation introduced Tier 1 standards for equipment under 50 horsepower and increasingly more stringent Tier 2, Tier 3, and Tier 4 standards for all equipment with phase-in schedules from 2000 to 2015. As a result, all off-road, diesel-fueled construction equipment manufactured from 2006 to 2015 has been manufactured to Tier 3 standards. The Tier 3 standards can reduce PM emissions by as much as 39 percent. By requiring the use of Tier 3 construction equipment during the most intensive phases of Project construction, mitigation measure AQ-1 would reduce temporary exhaust PM2.5 emissions impacts generated during Project construction to a less than significant level, as shown in Table 2-9.

Table 2-9. Mitigated Project-Related Fine Matter Concentration (Localized Significance Analysis)

Activity Maximum Project Boundary Pollutant Concentration (µg/m3)

PM2.5

Project Construction1 0.2 µg/m3

BAAQMD Significant Impact Threshold 0.3 µg/m3

Exceed BAAQMD Threshold? No

Source: AERMOD v. 9.6. Refer to Attachment B for Model Data Outputs. Notes: 1 Concentration values represent maximum concentrations. Fine particulate matter emission factors derived from ‘mitigated’ Project-

CalEEMod results identified in Table 2-6. All construction projects in San Mateo are required to implement the BAAQMD’s Basic Construction Mitigation Measures as a condition of project approval. Emissions estimates account for the quantifiable components of the BAAQMD’s Basic Construction Mitigation Measures, specifically watering unpaved portions of the construction site twice daily, limiting off-road equipment to speeds of 15 mph, and removing dirt track-out on adjacent public roads with a wet power vacuum once daily.

As shown, with implementation of mitigation measure AQ-1, PM2.5 concentrations would be reduced below the BAAQMD threshold. As a result, PM2.5 concentrations generated during Project construction would not result in a violation of air quality standards.

Recommended Mitigation Measures

AQ-1: All Project rubber-tired dozers, graders, cranes, excavators, backhoes, loaders, and tractors shall be California Air Resources Board (CARB) Tier 3 Certified.

Timing/Implementation: During Project Construction

Enforcement/Monitoring: City of San Mateo Planning Department



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Construction-Related Health Risks

As previously described, construction-related activities would result in temporary, short-term Project-generated emissions of DPM from the exhaust of off-road, heavy-duty diesel equipment for site preparation (e.g., excavation, grading); soil hauling truck traffic; paving; application of architectural coatings; and other miscellaneous activities. For construction activity, DPM is the primary TAC of concern.

DPM is emitted from both mobile and stationary sources. In California, on-road diesel-fueled engines contribute approximately 24 percent of the statewide total, with an additional 71 percent attributed to other mobile sources such as construction and mining equipment, agricultural equipment, and transport refrigeration units. Stationary sources contribute about 5 percent of total DPM. It should be noted that CARB has developed several plans and programs to reduce diesel emissions such as the Diesel Risk Reduction Plan (DRRP), the Statewide Portable Equipment Registration Program (PERP), and the Diesel Off-Road Reporting System (DOORS). The PERP and DOORS programs allow owners or operators of portable engines and certain other types of equipment can register their units in order to operate their equipment throughout California without having to obtain individual permits from local air districts.

Diesel exhaust and many individual substances contained in it (including arsenic, benzene, formaldehyde, and nickel) have the potential to contribute to mutations in cells that can lead to cancer. Long-term exposure to diesel exhaust particles poses the highest cancer risk of any TAC evaluated by OEHHA. CARB estimates that about 70 percent of the cancer risk that the average Californian faces from breathing toxic air pollutants stems from diesel exhaust particles.

In its comprehensive assessment of diesel exhaust, OEHHA analyzed more than 30 studies of people who worked around diesel equipment, including truck drivers, railroad workers, and equipment operators. The studies showed these workers were more likely to develop lung cancer than workers who were not exposed to diesel emissions. These studies provide strong evidence that long-term exposure to diesel exhaust increases the risk of lung cancer. Using information from OEHHA’s assessment, CARB estimates that diesel particle levels measured in California’s air in 2000 could cause 540 “excess” cancers in a population of 1 million people over a 70-year lifetime. Other researchers and scientific organizations, including the National Institute for Occupational Safety and Health, have calculated cancer risks from diesel exhaust similar to those developed by OEHHA and CARB.

Exposure to diesel exhaust can have immediate health effects. Diesel exhaust can irritate the eyes, nose, throat, and lungs, and it can cause coughs, headaches, lightheadedness, and nausea. In studies with human volunteers, diesel exhaust particles made people with allergies more susceptible to the materials to which they are allergic, such as dust and pollen. Exposure to diesel exhaust also causes inflammation in the lungs, which may aggravate chronic respiratory symptoms and increase the frequency or intensity of asthma attacks.

Diesel engines are a major source of fine particulate pollution. The elderly and people with emphysema, asthma, and chronic heart and lung disease are especially sensitive to fine-particle pollution. Numerous studies have linked elevated particle levels in the air to increased hospital admissions, emergency room visits, asthma attacks, and premature deaths among those suffering from respiratory problems. Because children’s lungs and respiratory systems are still developing, they are also more susceptible than healthy



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adults to fine particles. Exposure to fine particles is associated with increased frequency of childhood illnesses and can also reduce lung function in children. In California, diesel exhaust particles have been identified as a carcinogen.

A Health Risk Assessment was prepared to evaluate potential health risks associated with the emission of DPM resulting from the construction activities necessary to build the Project (see Attachment C). As previously described, construction of the Project would commence with demolition of the existing fast-food restaurant, auto repair facility, industrial warehouse, and asphalted surface parking lot. It is estimated that this on-site demolition would result in the hauling of 768 tons of demolished material off-site. Once demolition is completed, excavation would begin on the 2-level underground parking garage. Based on the Project Plans it is estimated that this excavation would result in the need to haul 53,302 cubic yards of soil from the Project site. The air dispersion modeling for the HRA was performed using the U.S. EPA AERMOD dispersion model. Emissions sources in the model include 6 volume sources to represent construction equipment maneuvering around the construction site. Additionally, emissions sources in the model include a line source (comprised of 14 volume sources) representing the material haul truck route between the Project site and Highway 101 (see Attachment C).

Non-Carcinogenic Hazards The significance thresholds for TAC exposure requires an evaluation of non-cancer risk stated in terms of a hazard index. Non-cancer chronic impacts are calculated by dividing the annual average concentration by the Reference Exposure Level (REL) for that substance. The REL is defined as the concentration at which no adverse non-cancer health effects are anticipated. The potential for acute non-cancer hazards is evaluated by comparing the maximum short-term exposure level to an acute REL. RELs are designed to protect sensitive individuals within the population. The calculation of acute non-cancer impacts is similar to the procedure for chronic non-cancer impacts. An acute or chronic hazard index of 1.0 is considered individually significant. The hazard index is calculated by dividing the acute or chronic exposure by the reference exposure level. The highest maximum chronic and acute hazard index at a sensitive receptor associated with DPM emissions from the Project would be 0.005 and 0.142, respectively. This concentration would occur at the property line of residential building directly adjacent to the southern boundary of the Project site. Therefore, non-carcinogenic hazards are calculated to be within acceptable limits and a less than significant impact would occur. Carcinogenic Risk Based on the AERMOD outputs, the expected annual average DPM emission concentrations at the most exposed sensitive receptor (the residential building directly adjacent to the southern boundary) resulting from Project construction would be 0.027 µg/m3 at the greatest. Cancer risk calculations for this residential building are based on constant exposure of this concentration value over the course of construction. The calculated carcinogenic risk at this sensitive receptor as a result of the Project is depicted in Table 2-10.



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Table 2-10. Maximum Operational Health Risk in the Project Vicinity

Exposure Scenario Maximum Cancer Risk Exposure Scenario Maximum Cancer Risk

Residential Building to the South, Directly Adjacent to Project

Construction 1.20 10 No

Source: ECORP Consulting 2019. Refer to Attachment C for Model Data Outputs

As shown, potential cancer risk from Project construction would be below the 10 in one million threshold, which was developed based on the requirements of the Air Toxics "Hot Spots" Information and Assessment Act and serves to determine whether or not a given project has a potentially significant development-specific and cumulative impact. Therefore, impacts related to cancer risk from Project construction would be less than significant.

Operational Air Contaminants Operation of the proposed Project would not result in the development of any substantial sources of air toxics. The Project proposes the development of a mixed-use office-residential building and therefore would not include stationary sources of air toxics (i.e., smoke stacks). According to the California Air Pollution Control Officers Association’s (CAPCOA’s) Health Risk Assessments for Proposed Land Use Projects (2009), operations that require more than 100 heavy-duty delivery trucks daily are considered a potential health risk from diesel particulate matter. The proposed office space would not be expected to accommodate 100 heavy-duty trucks daily. The Project would not be a source of TACs and there would be no impact as a result of the Project during operations.

As previously described, the residential component of the Project itself would be considered a sensitive receptor. There is a potential that future residents could be exposed to TAC emissions. Per BAAQMD guidance, all TAC sources within 1,000 feet of a proposed sensitive receptor need to be identified and analyzed. If emissions of TAC concentrations at a new sensitive receptor generated from all TAC sources in a 1,000-foot radius result in the exceedance of an excess cancer risk level of more than 100 in one million, or a non-cancer hazard index1 (HI) greater than 10, the Project would result in a significant impact. The BAAQMD CEQA Guidelines also consider exposure from all TAC sources in a 1,000-foot radius to annual PM2.5 concentrations that exceed 0.8 micrograms per cubic meter (µg/m3) to be significant.

This analysis employs the use of the BAAQMD’s various screening tools, which provide health impacts associated with off-site TAC sources. The tools present conservative estimates of impacts from off-site TAC sources. Per BAAQMD guidance, the cancer risk values were scaled to consider the 2015 OEHHA guidance.

1 The Hazard Index is the ratio of the computed receptor exposure level to the level known to cause acute or chronic adverse health impacts, as identified by the BAAQMD.



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According to the BAAQMD’s (2012a) Stationary Source Screening Analysis Tool, stationary sources of TACs within 1,000 feet of the Project site include one backup diesel-powered generator located to the west at approximately 875 feet. This backup generator is associated with existing emergency response services. Other stationary TAC sources include three auto body shops located between 600 and 942 feet of the Project site, as well as four gasoline dispensing facilities ranging from 258 feet distant to 782 feet distant. Estimated health impacts from existing stationary sources for the on-site receptors are presented in Table 2-11. It is noted that the backup generator would not typically be operational and would only operate during a power outage. It is also noted that diesel-powered generators are regulated by BAAQMD Regulation 2, Rule 5, which provides for the review of TAC emissions in order to evaluate potential public exposure and health risk, to mitigate potentially significant health risks resulting from these exposures, and to provide net health risk benefits by improving the level of control when existing sources are modified or replaced. Pursuant to BAAQMD Regulation 2, Rule 5, all stationary sources having the potential to emit TACs, including diesel-powered generators, are required to obtain permits from the BAAQMD. Permits may be granted to these operations provided they are operated in accordance with applicable BAAQMD rules and regulations. As part of the permitting process, the BAAQMD estimates the risk and hazard impacts of the particular source based on Health Risk Screening Assessments developed on conservative modeling parameters for the particular source.



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Table 2-11. Stationary Source Health Risk Screening Analysis on Project Receptors

Stationary Source Type / Location Distance to Proposed Project1

Health Risk Distance

Adjustment Multiplier2

Cancer Risk

Scaling Factor3

Estimated Lifetime Excess Cancer Risk

(in a million)3, 4

Chronic HI

Estimated PM2.5

Concentration (µg/m3)4

Auto Body – 400 1st Avenue 691 Feet 0.027

1.37

0.03 0.00 0.00

Auto Body – 111 S. Railroad Avenue 600 Feet 0.034 0.00 0.00 0.00

Auto Body – 49 S. Railroad Avenue 942 Feet 0.016 0.00 0.00 0.00

Backup Generator – 101 S. Ellsworth Avenue 875 Feet 0.05 0.27 0.00 0.00

Gasoline Dispenser – 300 Delaware Street 258 Feet 0.13 5.82 0.00 0.00

Gasoline Dispenser – 402 Delaware Street 350 Feet 0.08 1.77 0.00 0.00

Gasoline Dispenser – 609 E. 4th Avenue 488 Feet 0.04 2.58 0.00 0.00

Gasoline Dispenser – 706 E. 4th Avenue 782 Feet 0.02 0.31 0.00 0.00

Source: BAAQMD 2012a; 2012b. All facilities within 1,000 feet of the Project site were included as per the BAAQMD Stationary Source Screening Analysis Tool. Facility information was obtained from the San Mateo County Stationary Source Screening tool with additional details provided by BAAQMD. Notes: 1 Distances presented represent the minimum distance from the Project site to the source.

2 Distance adjustment multipliers are from either the BAAQMD Diesel Risk Multiplier for diesel generators or the BAAQMD Multiplier for Gasoline Dispensing Facilities.

3 BAAQMD screening tools' calculated impacts are based on previous OEHHA guidance. Per BAAQMD recommendations, cancer risks were conservatively scaled by a factor of 1.37 to account for the updated exposure parameters and calculation methodologies in OEHHA 2015 guidance.

4 The adjusted health impacts listed in the table above were calculated using the health impacts estimated using BAAQMD Stationary Source Screening Analysis Tool and were adjusted using either the BAAQMD Diesel Risk Multiplier for diesel generators or the BAAQMD Multiplier for Gasoline Dispensing Facilities.

Other sources of TACs in the vicinity of the Project include automobiles traversing the site on East 3rd Avenue, E. 4th Avenue, S. Claremont Street, and S. Railroad Avenue. According to the Circulation Element of the City of San Mateo General Plan (2010), S. Claremont Street and S. Railroad Avenue are classified as Local Roadways, which are estimated to average approximately 1,000 automobile trips daily, while East 3rd Avenue, E. 4th Avenue are classified as a Collectors, and Collector streets are estimated to accommodate approximately 10,000 average daily trips (San Mateo 2010).

Additionally, the Project is located approximately 35 feet from a Caltrain railway at the ground level (Project residences, located on the 4th floor, would be located more than 75 feet distant). It is noted that Caltrain trains presently consist of diesel locomotive-hauled, bi-level passenger cars. Caltrain operates approximately 46 northbound and 46 southbound (for a total of 92) trains per day between San Jose and San Francisco during the week (PCJPB 2014). According to the Caltrain Electrification Project Draft Environmental Impact Report (PCJPB 2014), electrification of the Caltrain rail line is scheduled to be operational by 2019 and approximately 75 percent of Caltrain trains would be powered by electricity instead of diesel fuel (PCJPB 2014). 100 percent of Caltrain trains are schedule to be powered by electricity



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by 2040. Electrification of the Caltrain rail line would substantially reduce DPM emissions compared with both existing conditions and with the ‘No Electrification’ 2020 and 2040 scenarios (PCJPB 2014). According to the Caltrain Electrification Project Draft Environmental Impact Report (PCJPB 2014), DPM emissions generated along the Caltrain corridor between San Jose and San Francisco would be reduced by 71 percent in 2020 and by 100 percent in 2040. While this analysis does not rely on this projected modernization for purposes of mitigating impacts, electrification will help further reduce the long-term operational impacts of the Project.

Estimated health impacts from existing mobile sources for the on-site receptors are presented in Table 2-12.

Table 2-12. Mobile Source Health Risk Screening Analysis on Project Receptors

Mobile Source Type / Location Distance to Proposed Project Residences (feet)1

Cancer Risk

Scaling Factor2

Estimated Lifetime Excess Cancer Risk

(in a million)2

Chronic HI

Estimated PM2.5

Concentration (µg/m3)

E. 3rd Avenue 40 Feet

1.37

7.17 0.00 0.13

E. 4th Avenue 40 Feet 7.86 0.00 0.13

S. Claremont Street 40 Feet 0.48 0.00 0.02

S. Railroad Avenue 40 Feet 1.03 0.00 0.01

Caltrain Rail Corridor 75 feet 57.33 0.02 0.07

Source: BAAQMD 2015a; 2015b. Notes: 1 Distances presented represent the minimum distance from the Project site to the source. Average daily automobile trip volumes are based on the City

of San Mateo General Plan Circulation Element (2010). 2 BAAQMD screening tools' calculated impacts are based on previous OEHHA guidance. Per BAAQMD recommendations, cancer risks were

conservatively scaled by a factor of 1.37 to account for the updated exposure parameters and calculation methodologies in OEHHA 2015 guidance.

Table 2-13 shows the maximum cancer risks, hazards, and PM2.5 concentrations from all off-site sources (stationary and mobile) at the Project location.

Table 2-13. Maximum On-Site Excess Lifetime Cancer Risk, Chronic HI, and PM2.5 Concentration

Source Category Lifetime Excess Cancer Risk

Chronic HI PM2.5 Concentration

Off-Site Stationary Sources 10.78 0.00 0.00

Off-Site Mobile Source 73.87 0.02 0.36

Total 84.65 0.02 0.36

BAAQMD Significance Threshold 100 10 0.8

Exceed Threshold? No No No

Source: Stationary Source Impacts from Table 2-10; Mobile Source Impacts from Table 2-11.



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As shown in Table 2-13, the estimated cancer risk, non-cancer chronic hazard index, and PM2.5 concentration from off-site sources are below the respective BAAQMD significance thresholds. Therefore, Project residents would not be exposed to substantial amounts of air toxics.

Carbon Monoxide Hot Spots

It has long been recognized that CO exceedances are caused by vehicular emissions, primarily when idling at intersections. Concentrations of CO are a direct function of the number of vehicles, length of delay, and traffic flow conditions. Under certain meteorological conditions, CO concentrations close to congested intersections that experience high levels of traffic and elevated background concentrations may reach unhealthy levels, affecting nearby sensitive receptors. Given the high traffic volume potential, areas of high CO concentrations, or “hot spots,” are typically associated with intersections that are projected to operate at unacceptable levels of service during the peak commute hours. However, transport of this criteria pollutant is extremely limited, and CO disperses rapidly with distance from the source under normal meteorological conditions. Furthermore, vehicle emissions standards have become increasingly more stringent in the last 20 years. Currently, the CO standard in California is a maximum of 3.4 grams per mile for passenger cars (requirements for certain vehicles are more stringent). With the turnover of older vehicles, introduction of cleaner fuels, and implementation of control technology on industrial facilities, CO concentrations in the Project vicinity have steadily declined.

Accordingly, with the steadily decreasing CO emissions from vehicles, even very busy intersections do not result in exceedances of the CO standard. Transport of this criteria pollutant is extremely limited; CO disperses rapidly with distance from the source under normal meteorological conditions. Under certain meteorological conditions, however, CO concentrations close to congested intersections that experience high levels of traffic and elevated background concentrations may reach unhealthy levels, affecting nearby sensitive receptors. Areas of high CO concentrations, or “hot spots,” are typically associated with intersections that are projected to operate at unacceptable levels of service during the peak commute hours.2 Based on BAAQMD guidance, project meeting all of the following screening criteria would be considered to have a less than significant impact on localized CO concentrations if:

1. The Project is consistent with an applicable congestion management program established by the county congestion management agency for designated roads or highways, regional transportation plans, and local congestion management agency plans.

2. The Project traffic would not increase traffic volumes at affected intersections to more than 44,000 vehicles per hour.

2 Level of service (LOS) is a measure used by traffic engineers to determine the effectiveness of transportation infrastructure. Level of service is most commonly used to analyze intersections by categorizing traffic flow with corresponding safe driving conditions. LOS A is considered the most efficient level of service and LOS F the least efficient.



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3. The Project traffic would not increase traffic volumes at affected intersections to more than 24,000 vehicles per hour where vertical and/or horizontal mixing is substantially limited (e.g., tunnel, parking garage, bridge underpass, natural or urban street canyon, below-grade roadway).

According to Hexagon Transportation Consultants (2018), the highest peak-hour volumes associated with the Project would be 107 trips. Therefore, the Project would not increase traffic volumes to more than 44,000 vehicles per hour or 24,000 vehicles per hour where vertical and/or horizontal mixing of pollutants and atmosphere is substantially limited (i.e., an enclosed parking structure).

ODORS Typically, odors are regarded as an annoyance rather than a health hazard. However, manifestations of a person’s reaction to foul odors can range from psychological (e.g., irritation, anger, or anxiety) to physiological (e.g., circulatory and respiratory effects, nausea, vomiting, and headache).

With respect to odors, the human nose is the sole sensing device. The ability to detect odors varies considerably among the population and overall is quite subjective. Some individuals have the ability to smell minute quantities of specific substances; others may not have the same sensitivity but may have sensitivities to odors of other substances. In addition, people may have different reactions to the same odor; in fact, an odor that is offensive to one person (e.g., from a fast-food restaurant) may be perfectly acceptable to another. It is also important to note that an unfamiliar odor is more easily detected and is more likely to cause complaints than a familiar one. This is because of the phenomenon known as odor fatigue, in which a person can become desensitized to almost any odor and recognition only occurs with an alteration in the intensity.

Quality and intensity are two properties present in any odor. The quality of an odor indicates the nature of the smell experience. For instance, if a person describes an odor as flowery or sweet, then the person is describing the quality of the odor. Intensity refers to the strength of the odor. For example, a person may use the word “strong” to describe the intensity of an odor. Odor intensity depends on the odorant concentration in the air. When an odorous sample is progressively diluted, the odorant concentration decreases. As this occurs, the odor intensity weakens and eventually becomes so low that the detection or recognition of the odor is quite difficult. At some point during dilution, the concentration of the odorant reaches a detection threshold. An odorant concentration below the detection threshold means that the concentration in the air is not detectable by the average human.

Construction

During construction, the proposed Project presents the potential for generation of objectionable odors in the form of diesel exhaust in the immediate vicinity of the site. However, these emissions are short-term in nature and will rapidly dissipate and be diluted by the atmosphere downwind of the emission sources. Additionally, odors would be localized and generally confined to the construction area. Therefore, construction odors would result in a less than significant impact related to odor emissions.



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Operations

With respect to operational impacts, the BAAQMD recommends screening criteria based on the distance between the receptor and the types of sources known to generate odor. The land uses identified by the BAAQMD as sources of odors include wastewater treatment plants, wastewater pumping facilities, sanitary landfills, transfer stations, composting facilities, petroleum refineries, asphalt batch plants, chemical manufacturing and fiberglass manufacturing facilities, painting/coating operations, rendering plants, coffee roasters, food processing facilities, confined animal facilities, feedlots, dairies, green waste and recycling operations, and metal smelting plants. If a source of odors is proposed to be located near existing or planned sensitive receptors, this could have the potential to cause operational-related odor impacts. The Project would not include any of the land uses that have been identified by the BAAQMD as odor sources.

CUMULATIVE AIR QUALITY IMPACTS The cumulative setting for air quality includes San Mateo and the SFBAAB. The SFBAAB is designated as a nonattainment area for the federal ozone and PM2.5 standards and is also a nonattainment area for the state standards for state ozone, PM10, and PM2.5 standards (CARB 2017a). Cumulative growth in population, vehicle use, and industrial activity could inhibit efforts to improve regional air quality and attain the ambient air quality standards. Thus, the setting for this cumulative analysis consists of the SFBAAB and associated growth and development anticipated in the air basin.

By its nature, air pollution is largely a cumulative impact. According to the BAAQMD, no single project by itself is sufficient in size to result in nonattainment of ambient air quality standards. Instead, a project’s individual emissions contribute to existing cumulatively significant adverse air quality impacts. In developing thresholds of significance for air pollutants, the BAAQMD considered the emission levels for which a project’s individual emissions would be cumulatively considerable. According to the BAAQMD, if a project exceeds its identified project-level significance thresholds, that project would be cumulatively considerable. As demonstrated above, the proposed Project would not exceed BAAQMD thresholds for air pollutant emissions during construction or operations. Therefore, since the Project does not exceed BAAQMD significance thresholds, it would not result in a cumulatively considerable net increase of criteria pollutants.



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3.0 GREENHOUSE GAS EMISSIONS

3.1 Greenhouse Gas Setting

Certain gases in the earth’s atmosphere, classified as GHGs, play a critical role in determining the earth’s surface temperature. Solar radiation enters the earth’s atmosphere from space. A portion of the radiation is absorbed by the earth’s surface and a smaller portion of this radiation is reflected back toward space. This absorbed radiation is then emitted from the earth as low-frequency infrared radiation. The frequencies at which bodies emit radiation are proportional to temperature. Because the earth has a much lower temperature than the sun, it emits lower-frequency radiation. Most solar radiation passes through GHGs; however, infrared radiation is absorbed by these gases. As a result, radiation that otherwise would have escaped back into space is instead “trapped,” resulting in a warming of the atmosphere. This phenomenon, known as the greenhouse effect, is responsible for maintaining a habitable climate on earth. Without the greenhouse effect, the earth would not be able to support life as we know it.

Prominent GHGs contributing to the greenhouse effect are carbon dioxide (CO2), methane (CH4), and nitrous oxide (N2O). Fluorinated gases also make up a small fraction of the GHGs that contribute to climate change. Fluorinated gases include chlorofluorocarbons, hydrofluorocarbons, perfluorocarbons, sulfur hexafluoride, and nitrogen trifluoride; however, it is noted that these gases are not associated with typical land use development. Human-caused emissions of these GHGs in excess of natural ambient concentrations are believed to be responsible for intensifying the greenhouse effect and leading to a trend of unnatural warming of the earth’s climate, known as global climate change or global warming. It is “extremely likely” that more than half of the observed increase in global average surface temperature from 1951 to 2010 was caused by the anthropogenic increase in GHG concentrations and other anthropogenic factors together (IPCC 2014).

Table 3-1 describes the primary GHGs attributed to global climate change, including their physical properties, primary sources, and contributions to the greenhouse effect.

Each GHG differs in its ability to absorb heat in the atmosphere based on the lifetime, or persistence, of the gas molecule in the atmosphere. CH4 traps over 25 times more heat per molecule than CO2, and N2O absorbs 298 times more heat per molecule than CO2 (IPCC 2014). Often, estimates of GHG emissions are presented in carbon dioxide equivalents (CO2e), which weight each gas by its global warming potential (GWP). Expressing GHG emissions in CO2e takes the contribution of all GHG emissions to the greenhouse effect and converts them to a single unit equivalent to the effect that would occur if only CO2 were being emitted.

Climate change is a global problem. GHGs are global pollutants, unlike criteria air pollutants and toxic air contaminants, which are pollutants of regional and local concern. Whereas pollutants with localized air quality effects have relatively short atmospheric lifetimes (about one day), GHGs have long atmospheric lifetimes (one to several thousand years). GHGs persist in the atmosphere for long enough time periods to be dispersed around the globe. Although the exact lifetime of any particular GHG molecule is dependent on multiple variables and cannot be pinpointed, it is understood that more CO2 is emitted into the



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atmosphere than is sequestered by ocean uptake, vegetation, or other forms. Of the total annual human-caused CO2 emissions, approximately 55 percent is sequestered through ocean and land uptakes every year, averaged over the last 50 years, whereas the remaining 45 percent of human-caused CO2 emissions remains stored in the atmosphere (IPCC 2013).

Table 3-1. Greenhouse Gases

Greenhouse Gas Description

CO2

Carbon dioxide is a colorless, odorless gas. CO2 is emitted in a number of ways, both naturally and through human activities. The largest source of CO2 emissions globally is the combustion of fossil fuels such as coal, oil, and gas in power plants, automobiles, industrial facilities, and other sources. A number of specialized industrial production processes and product uses such as mineral production, metal production, and the use of petroleum-based products can also lead to CO2 emissions. The atmospheric lifetime of CO2 is variable because it is so readily exchanged in the atmosphere.1

CH4

Methane is a colorless, odorless gas and is the major component of natural gas, about 87 percent by volume. It is also formed and released to the atmosphere by biological processes occurring in anaerobic environments. Methane is emitted from a variety of both human-related and natural sources. Human-related sources include fossil fuel production, animal husbandry (intestinal fermentation in livestock and manure management), rice cultivation, biomass burning, and waste management. These activities release significant quantities of CH4 to the atmosphere. Natural sources of CH4 include wetlands, gas hydrates, permafrost, termites, oceans, freshwater bodies, non-wetland soils, and other sources such as wildfires. The atmospheric lifetime of CH4 is about12 years.2

N2O

Nitrous oxide is a clear, colorless gas with a slightly sweet odor. Nitrous oxide is produced by both natural and human-related sources. Primary human-related sources of N2O are agricultural soil management, animal manure management, sewage treatment, mobile and stationary combustion of fossil fuels, adipic acid production, and nitric acid production. N2O is also produced naturally from a wide variety of biological sources in soil and water, particularly microbial action in wet tropical forests. The atmospheric lifetime of N2O is approximately 120 years.3

Sources: 1 EPA 2016a, 2 EPA 2016b, 3 EPA 2016c

The quantity of GHGs that it takes to ultimately result in climate change is not precisely known; suffice it to say the quantity is enormous, and no single project alone would measurably contribute to a noticeable incremental change in the global average temperature or to global, local, or microclimates. From the standpoint of CEQA, GHG impacts to global climate change are inherently cumulative.

Sources of Greenhouse Gas Emissions

In June 2017, CARB released the 2017 edition of the California GHG inventory covering calendar year 2015 emissions. In 2015, California emitted 440.4 million gross metric tons of CO2e including from imported electricity. Combustion of fossil fuel in the transportation sector was the single largest source of California’s GHG emissions in 2015, accounting for approximately 37 percent of total GHG emissions in the state. This sector was followed by the industrial sector (21 percent) and the electric power sector (including both in-state and out-of-state sources) (19 percent) (CARB 2017b).

Emissions of CO2 are by-products of fossil fuel combustion. CH4, a highly potent GHG, primarily results from off-gassing (the release of chemicals from nonmetallic substances under ambient or greater pressure conditions) and is largely associated with agricultural practices and landfills. N2O is also largely attributable to agricultural practices and soil management. Carbon dioxide sinks, or reservoirs, include vegetation and the ocean, which absorb CO2 through sequestration and dissolution (CO2 dissolving into



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the water), respectively, two of the most common processes for removing carbon dioxide from the atmosphere.


State

Executive Order S-3-05

Executive Order (EO) S-3-05, signed by Governor Arnold Schwarzenegger in 2005, proclaims that California is vulnerable to the impacts of climate change. It declares that increased temperatures could reduce the Sierra Nevada snowpack, further exacerbate California’s air quality problems, and potentially cause a rise in sea levels. To combat those concerns, the executive order established total GHG emission targets for the state. Specifically, emissions are to be reduced to the 2000 level by 2010, the 1990 level by 2020, and to 80 percent below the 1990 level by 2050.

While dated, this executive order remains relevant because a more recent California Appellate Court decision, Cleveland National Forest Foundation v. San Diego Association of Governments (November 24, 2014) 231 Cal.App.4th 1056, examined whether it should be viewed as having the equivalent force of a legislative mandate for specific emissions reductions. While the California Supreme Court ruled that the San Diego Association of Governments did not abuse its discretion by declining “to adopt the 2050 goal as a measure of significance in light of the fact that the Executive Order does not specify any plan or implementation measures to achieve its goal, the decision also recognized that the goal of a 40 percent reduction in 1990 GHG levels by 2030 is “widely acknowledged” as a “necessary interim target to ensure that California meets its longer-range goal of reducing greenhouse gas emissions 80 percent below 1990 levels by the year 2050.

Assembly Bill 32 Climate Change Scoping Plan and Updates

In 2006, the California legislature passed Assembly Bill 32 (Health and Safety Code §38500 et seq., or AB 32), also known as the Global Warming Solutions Act. AB 32 requires CARB to design and implement feasible and cost-effective emission limits, regulations, and other measures, such that statewide GHG emissions are reduced to 1990 levels by 2020 (representing a 25 percent reduction in emissions). AB 32 anticipates that the GHG reduction goals will be met, in part, through local government actions. CARB has identified a GHG reduction target of 15 percent from current levels for local governments and notes that successful implementation relies on local governments’ land use planning and urban growth decisions.

Pursuant to AB 32, CARB adopted a Scoping Plan in December 2008, which was re-approved by CARB on August 24, 2011, that outlines measures to meet the 2020 GHG reduction goals. To meet these goals, California must reduce its GHG emissions by 30 percent below projected 2020 business-as-usual emissions levels or about 15 percent from today’s levels. The Scoping Plan recommends measures for further study and possible State implementation, such as new fuel regulations. It estimates that a reduction of 174 million metric tons of CO2e (about 191 million U.S. tons) from the transportation, energy, agriculture, and forestry sectors and other sources could be achieved should the State implement all of the measures in the Scoping Plan.



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The Scoping Plan is required by AB 32 to be updated at least every five years. The first update to the AB 32 Scoping Plan was approved on May 22, 2014 by CARB. The 2017 Scoping Plan Update was adopted on December 14, 2017. The Scoping Plan Update addresses the 2030 target established by Senate Bill 32 (SB 32) as discussed below and establishes a proposed framework of action for California to meet a 40 percent reduction in GHG emissions by 2030 compared to 1990 levels. The key programs that the Scoping Plan Update builds on include: increasing the use of renewable energy in the state, the Cap-and-Trade Regulation, the Low Carbon Fuel Standard, and reduction of methane emissions from agricultural and other wastes.

Executive Order B-30-15

On April 20, 2015 Governor Brown signed Executive Order B-30-15 to establish a California GHG reduction target of 40 percent below 1990 levels by 2030. The Governor’s executive order aligns California’s GHG reduction targets with those of leading international governments such as the 28-nation European Union, which adopted the same target in October 2014. California is on track to meet or exceed the target of reducing GHG emissions to 1990 levels by 2020, as established in the California Global Warming Solutions Act of 2006 (AB 32, discussed above). California’s new emission reduction target of 40 percent below 1990 levels by 2030 will make it possible to reach the ultimate goal of reducing emissions 80 percent below 1990 levels by 2050. This is in line with the scientifically established levels needed in the U.S. to limit global warming below 2 degrees Celsius, the warming threshold at which major climate disruptions are projected, such as super droughts and rising sea levels.

Senate Bill 32 and Assembly Bill 197 of 2016

In August 2016, Governor Brown signed SB 32 and AB 197, which serve to extend California’s GHG reduction programs beyond 2020. SB 32 amended the Health and Safety Code to include Section 38566, which contains language to authorize CARB to achieve a statewide GHG emission reduction of at least 40 percent below 1990 levels by no later than December 31, 2030. SB 32 codified the targets established by EO B-30-15 for 2030, which set the next interim step in the State’s continuing efforts to pursue the long-term target expressed in EOs S-3-05 and B-30-15 of 80 percent below 1990 emissions levels by 2050.

Senate Bill X1-2 of 2011, Senate Bill 350 of 2015, and Senate Bill 100 of 2018

SB X1-2 of 2011 requires all California utilities to generate 33 percent of their electricity from renewables by 2020. SB X1-2 sets a three-stage compliance period requiring all California utilities, including independently-owned utilities, energy service providers, and community choice aggregators, to generate 20 percent of their electricity from renewables by December 31, 2013; 25 percent by December 31, 2016; and 33 percent by December 31, 2020. SB X1-2 also requires the renewable electricity standard to be met increasingly with renewable energy that is supplied to the California grid from sources within, or directly proximate to, California.

In October 2015, SB 350 was signed by Governor Brown, which requires retail sellers and publicly-owned utilities to procure 50 percent of their electricity from renewable resources by 2030. In 2018, SB 100 was signed by Governor Brown, codifying a goal of 60 percent renewable procurement by 2030 and 100 percent by 2045 RPS.



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Local

Bay Area Air Quality Management District

To provide guidance to local lead agencies on determining significance for GHG emissions in CEQA documents, BAAQMD CEQA Guidelines include guidance on assessing GHGs and climate change impacts as required under CEQA Section 15183.5(b) and establish thresholds of significance for impacts related to GHG emissions. These guidelines are based on substantial evidence to “attribute an appropriate share of greenhouse gas emission reductions necessary to reach AB 32 goals to new land use development projects in the BAAQMD’s jurisdiction that are evaluated pursuant to CEQA” (BAAQMD 2017a).

The BAAQMD project-level operational threshold of significance for GHG emissions is the project generation of 1,100 metric tons of CO2e per year during operations (bright-line numeric threshold); or the project generation of 4.6 metric tons of CO2e per service population (employees + patrons + residents) per year during operations (efficiency-based threshold); or compliance with a Qualified GHG Reduction Strategy.

Association of Bay Area Governments Final Plan Bay Area 2040

The Association of Bay Area Governments’ (ABAG) Plan Bay Area is the Regional Transportation Plan (RTP) and Sustainable Communities Strategy (SCS) for the San Francisco Bay Area. ABAG was tasked by CARB to achieve a 7 percent per capita reduction in mobile-source GHG emissions compared to 2005 vehicle emissions by 2020 and a 15 percent per capita reduction by 2035. Plan Bay Area 2040 establishes an overall mechanism to achieve these GHG targets for the Project region consistent with both the target date of AB 32 (2020) and the post-2020 GHG reduction goals of SB 32. CARB has confirmed the Project region will achieve its GHG reduction targets by implementing Plan Bay Area (CARB 2014).

Bay Area Air Quality Management District 2017 Clean Air Plan

The 2017 Plan provides a regional strategy to protect public health and protect the climate. To protect the climate, the 2017 Clean Air Plan defines a vision for transitioning the region to a post-carbon economy needed to achieve ambitious greenhouse gas reduction targets for 2030 and 2050 and provides a regional climate protection strategy that will put the Bay Area on a pathway to achieve those greenhouse gas emissions reduction targets.

The 2017 Clean Air Plan includes a wide range of control measures designed to reduce emissions of methane and other “super-GHGs” that are potent climate pollutants in the near-term; and to decrease emissions of carbon dioxide by reducing fossil fuel combustion.

San Mateo Climate Action Plan

The City of San Mateo adopted a community-wide climate action plan (CAP) on April 6, 2015, which updates and consolidates the City’s existing GHG Emissions Reduction Plan, Climate Action Plan for Municipal Operations and Facilities, and Sustainable Initiatives Plan based on the vision of San Mateo residents, businesses, and local government. The goal was to prepare a CAP that serves as an updated and Qualified GHG Reduction Strategy consistent with BAAQMD GHG Plan Level Guidance and CEQA



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Guidelines Section 15183.5. The CAP was developed through a robust public process that engaged the San Mateo Sustainability Commission, staff, and the community.

A climate action plan is a comprehensive strategy for a community to reduce emissions of GHGs, which, according to scientific consensus, are primarily responsible for causing climate change. The San Mateo CAP includes five key pieces:

1. An inventory of the annual GHG emissions attributable to San Mateo based on the types of activities occurring within the community and guidance from various protocols and agencies. The City has inventories of emissions for 2005 and 2010.

2. A forecast of what GHG emissions are likely to look like in 2020 and 2030, based on expected population and economic growth adopted in the General Plan.

3. A reduction target, which identifies a goal for reducing GHG emissions by 2020 and 2030.

4. Reduction strategies, which describe the actions the community intends to take to achieve the reduction target. Each strategy identifies the amount of GHGs that will be reduced once the strategy is implemented. The CAP also estimates benefits of existing programs.

5. An implementation and monitoring program to track progress toward the reduction target and the status of the reduction strategies. A CAP consistency checklist for future development projects is included in the implementation program.

City of San Mateo CAP Consistency Checklist

As part of the CAP, the City developed a CAP consistency checklist for land use projects. The checklist is a streamlined tool that identifies the CAP’s mandatory requirements and provides an opportunity for project applicants to demonstrate project consistency with GHG reduction measures and actions in the CAP. The checklist is also an opportunity to identify additional project characteristics that support the GHG reduction targets and programs in the CAP

3.3 Greenhouse Gas Emissions Impact Assessment


The impact analysis provided below is based on the following CEQA Guidelines Appendix G thresholds of significance. The Project would result in a significant impact to greenhouse gas emissions if it would:

1) Generate GHG emissions, either directly or indirectly, that may have a significant impact on the environment.

2) Conflict with any applicable plan, policy, or regulation of an agency adopted for the purpose of reducing the emissions of greenhouse gases.

BAAQMD Thresholds

The assessment of GHG emissions below is based on guidance from the BAAQMD. The BAAQMD CEQA Guidelines include guidance on assessing GHGs and climate change impacts as required under CEQA



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Section 15183.5(b) and establish thresholds of significance for impacts related to GHG emissions. The City of San Mateo has determined, in its discretion, that the guidelines are based on substantial evidence to “attribute an appropriate share of greenhouse gas emission reductions necessary to reach AB 32 goals to new land use development projects in the BAAQMD’s jurisdiction that are evaluated pursuant to CEQA” (BAAQMD 2017a). Therefore, the City is using the BAAQMD CEQA Guidelines to determine the level of impact from the project’s contribution of GHG emissions.

The BAAQMD does not have an adopted threshold of significance for construction-related GHG emissions; however, the air district recommends the quantification and disclosure of construction-generated GHG emissions.

The BAAQMD project-level operational threshold of significance for GHG emissions is the project generation of 1,100 metric tons of CO2e per year during operations (bright-line numeric threshold); or the project generation of 4.6 metric tons of CO2e per service population (employees + patrons + residents) per year during operations (efficiency-based threshold); or compliance with a Qualified GHG Reduction Strategy. For the purposes of this assessment, the Project is evaluated for compliance with the City of San Mateo CAP, as well as the BAAQMD bright-line numeric threshold of 1,100 metric tons of CO2e per year during operations.

As previously described, statewide goals for GHG reductions in the years beyond 2020 have been recently codified into state law with the passage of SB 32. The California Cap-and-Trade Program is the centerpiece of the current Scoping Plan as it allows the state to put a firm limit on overall carbon emissions. Under Cap-and-Trade, an overall limit on GHG emissions from capped sectors is established and facilities subject to the cap would be able to trade permits to emit GHG emissions. The Cap-and-Trade Program covers the GHG emissions associated with electricity consumed in California, whether generated in-state or imported. The program also covers fuel suppliers (natural gas and propane fuel providers as well as transportation fuel providers). Accordingly, GHG emissions associated with the Project’s electricity and natural gas usage are covered by the Cap-and-Trade Program, as are GHG emission associated with the combustion of transportation fuels in the state, whether refined in-state or imported. Therefore, while Project design can contribute to reducing potential GHG emissions from the proposed Project, achievement of future GHG efficiency standards is also dependent, and primarily driven, on regulatory controls applied to all sectors of the California economy. Thus, the ability of this Project—and all land use development—to achieve GHG reduction goals beyond 2020 is partially out of the control of the Project and its proponents and is being addressed by the State of California.

Nonetheless, even though the San Mateo CAP was drafted before SB 32, the CAP addresses estimate emissions beyond 2020 as informed by the post-2020 GHG reduction targets of Executive Order S-3-05. Specifically, the City set an additional goal of a 35 percent reduction from 2005 levels by 2030. Therefore, Project compliance with the CAP adequately establishes Project compliance not only with statewide GHG reduction goals for the year 2020 associated with AB 32, but also with statewide GHG reduction goals for the years beyond 2020.

Additionally, the Project is compared to ABAG’s Plan Bay Area, the RTP/SCS for the San Francisco Bay Area, which establishes an overall GHG target for the Project region consistent with both the target date



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of AB 32 (2020) and the post-2020 GHG reduction goals of SB 32. The Project is also compared to the BAAQMD 2017 Clean Air Plan, which defines a vision for transitioning the region to a post-carbon economy needed to achieve ambitious greenhouse gas reduction targets for 2030 and 2050 and provides a regional climate protection strategy that will put the Bay Area on a pathway to achieve those greenhouse gas emissions reduction targets.

Methodology

Air quality impacts were assessed in accordance with methodologies recommended by CARB and the BAAQMD. Where criteria air pollutant quantification was required, emissions were modeled using the California Emissions Estimator Model (CalEEMod), version 2016.3.2. CalEEMod is a statewide land use emissions computer model designed to quantify potential criteria pollutant emissions associated with both construction and operations from a variety of land use projects. Project construction-generated air pollutant emissions were primarily calculated using CalEEMod model defaults.

Operational air pollutant emissions were modeled with CalEEMod based on the Project site plans and automobile trip rates identified in the Transportation Impact Analysis prepared for the Project by Hexagon Transportation Consultants (2018). For the purposes of this analysis, projected operational emissions associated with proposed operations are compared to the existing baseline, which includes a fast-food restaurant with drive-through, auto repair facility, industrial warehouse, and surface parking.

Impact Analysis

CONFLICT WITH ANY APPLICABLE PLAN, POLICY, OR REGULATION OF AN AGENCY

ADOPTED FOR THE PURPOSE OF REDUCING THE EMISSIONS OF GREENHOUSE GASES

City of San Mateo Climate Action Plan

The San Mateo CAP (2015) is a strategic planning document that identifies sources of GHG emissions within the city’s boundaries, presents current and future emissions estimates, identifies a GHG reduction target for future years, and presents strategic programs, policies, and projects to reduce emissions from the energy, transportation, land use, water use, and waste sectors. The GHG reduction programs, policies, projects, and strategies are referred to as “reduction measures” in the CAP. The emissions reduction program developed by the City follows the BAAQMD’s CEQA Guidelines (2017) and the corresponding criteria for a Qualified Greenhouse Gas Emissions Reduction Program as defined by the BAAQMD, which in turn were developed to comply with the requirements of AB 32 and achieve the goals of the AB 32 Scoping Plan. A Qualified Greenhouse Gas Emissions Reduction Program adopted by a local jurisdiction should include the elements below, as described in CEQA Guidelines Section 15183.5. The BAAQMD’s CEQA Guidelines outline the methodology to determine whether a GHG reduction program meets these requirements.

Quantify greenhouse gas emissions, both existing and projected over a specified time period, resulting from activities within a defined geographic area.

Establish a level, based on substantial evidence, below which the contribution to greenhouse gas emissions from activities covered by the plan would not be cumulatively considerable.



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Identify and analyze the greenhouse gas emissions resulting from specific actions or categories of actions anticipated within the geographic area.

Specify measures or a group of measures, including performance standards, which substantial evidence demonstrates, if implemented on a project-by-project basis, would collectively achieve the specified emissions level.

Establish a mechanism to monitor the plan’s progress toward achieving the level and to require amendment if the plan is not achieving specified levels.

Be adopted in a public process following environmental review.

The City’s CAP meets BAAQMD guidelines as follows:

The CAP quantifies citywide GHG emissions, both existing and projected over the specified time period, resulting from activities in San Mateo as defined by the City’s General Plan.

The CAP establishes a level, based on substantial evidence, below which the contribution of emissions from activities covered by the plan would not be cumulatively considerable.

CAP policy provisions reduce emissions to 15 percent below 2005 levels by 2020.

CAP policy provisions reduce emissions to 35 percent below 2005 levels by 2030.

CAP policy provisions provide a foundation for the City to reach the goal of reducing emissions to 80 percent below 1990 levels by 2050.

The CAP identifies and analyzes the emissions resulting from specific actions or categories of actions anticipated within the city.

The CAP specifies measures or a group of measures, including performance standards.

The CAP establishes a mechanism to monitor its progress toward achieving the level and to require amendment if the plan is not achieving specific levels.

The reduction measures proposed in the CAP build on inventory results and key opportunities prioritized by City staff, members of the San Mateo Sustainability Commission, and members of the public. The CAP strategies consist of measures and actions that identify the steps the City will take to support reductions in GHG emissions. The City will achieve these reductions in GHG emissions through a mix of voluntary programs and new strategic standards. All standards presented in the CAP respond to the needs of development, avoiding unnecessary regulation, streamlining new development, and achieving more efficient use of resources.

The Project is consistent with the GHG inventory and forecast in the CAP. Both the existing and the projected GHG inventories in the CAP were derived based on the land use designations and associated densities defined in the City’s General Plan (2010). The City of San Mateo General Plan designates the Project site as Downtown Retail Core Support. The proposed Project is consistent with this land use designation, and is thereby consistent with the GHG inventory and forecast in the CAP.



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In addition, a specific Project proposal is considered consistent with the San Mateo CAP if it complies with the “required” GHG reduction measures in the adopted CAP. The required GHG reduction measures applicable to the proposed Project include the following:

Reduction Measure RE 5: Renewable energy systems for new nonresidential buildings. The recently amended Section 23.24.030 of the San Mateo Municipal Code requires new nonresidential buildings with greater than or equal to 10,000 square feet of gross floor area to provide a minimum of a 5-kilowatt photovoltaic system. The Project is required to adhere to the San Mateo Municipal Code as a condition of Project approval, and this therefore proposing a 5-kilowatt, or greater, photovoltaic system.

Reduction Measure AF 2: Provide EV charging stations with designated parking spaces capable of meeting the California Green Building Code Voluntary Standards. The Project will be required to provide EV charging stations as a condition of Project approval. The encouragement of electric vehicles and clean air vehicles through the provision of charging facilities could lead to reduced use of gasoline-burning automobiles and thus, less GHG emissions.

Reduction Measure AT 2: Implement transportation demand management strategies to comply with the appropriate trip reduction target identified by the City of San Mateo. Transportation Demand Management (TDM) is a combination of services, incentives, facilities, and actions that reduce single-occupant vehicle (SOV) trips to help relieve traffic congestion, parking demand, and air pollutants, including GHG emissions. The purpose of TDM is to promote more efficient utilization of existing transportation facilities, and to ensure that new developments are designed to maximize the potential for sustainable transportation usage. A TDM Plan has been prepared for the proposed Project. The Project TDM Plan. The Project TDM Plan includes trip reduction strategies with the goal of reducing overall vehicular trip making activity in the Project area. Under the Project TDM Plan, the Project is expected to exceed the 25 percent trip reduction target for projects within downtown San Mateo (Hexagon 2018). The Project is located within walking distance to the San Mateo Caltrain station and four bus transit stops. The Project is also located in Downtown San Mateo, and thus within easy access to restaurants, retail stores, and other services in the immediate vicinity of the Project site. These services are conveniently located for residents of the proposed Project to access via walking, which will further reduce the number of vehicle trips. The Project would co-locate complementary office and residential land uses in close to proximity to existing off-site office, commercial and residential uses. The Project would include on-site jobs and residential land uses and would be located within an area surrounded by other off-site office/commercial and residential uses. The Project site is also located within 0.3 mile of Central Park. The increases in land use diversity and mix of uses on the Project site would reduce vehicle trips and VMT by encouraging walking and non-automotive forms of transportation, which would result in corresponding reductions in transportation-related emissions.

Reduction Measure SW 1: Provide an area of sufficient space to store and allow access to a compost bin and/or participate in a composting program. The Project is required, as a condition of Project approval, to either implement composting facilities on-site, or participate in a composting program with the Recology integrated resource recovery company.



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All development in San Mateo, including the Project, is required to adhere to all City-adopted policy provisions, including those contained in the adopted CAP. The Project applicant must complete a checklist to confirm consistency with the CAP to the satisfaction of City staff. The City ensures all provisions of the San Mateo CAP are incorporated into projects and their permits through development review and applications of conditions of approval as applicable.

Bay Area Air Quality Management Plan 2017 Clean Air Plan

As previously described, the 2017 Clean Air Plan provides a regional strategy to protect public health and protect the climate. The 2017 Clean Air Plan defines a vision for transitioning the region to a post-carbon economy needed to achieve ambitious GHG reduction targets for 2030 and 2050 and provides a regional climate protection strategy that will put the Bay Area on a pathway to achieve those GHG emissions reduction targets. The 2017 Clean Air Plan includes a wide range of control measures designed to reduce emissions of methane and other “super-GHGs” that are potent climate pollutants in the near-term; and to decrease emissions of carbon dioxide by reducing fossil fuel combustion.

The 2017 Clean Air Plan includes a diverse range of control measures designed to decrease GHG emissions. Consistency of the proposed Project with 2017 Clean Air Plan is demonstrated by assessing whether the Project supports all of the Project-applicable Clean Air Plan control measures for GHG emissions. The GHG-related control strategies of the Clean Air Plan include Mobile Source Measures, Transportation Control Measures and Energy and Climate Measures. (The Land Use and Local Impact Measures address the exposure of sensitive receptors to toxic air contaminants and is thereby not applicable to this impact discussion of GHG emissions. Additionally, the Stationary Source Measures in the Clean Air Plan such as those implemented to control emissions from metal melting facilities, cement kilns, refineries, and glass furnaces are not applicable to the proposed Project.)

Project-consistency with the 2017 Clean Air Plan has been previously described (see pages 19 – 22 of this Assessment). The proposed Project would conform to the Project-applicable control measures in the Clean Air Plan and would not disrupt or hinder the implementation of any other control measures.

The proposed Project would not conflict with this adopted plan pertaining to the reduction of GHG emissions.

Association of Bay Area Governments Final Plan Bay Area 2040

ABAG’s Plan Bay Area is the RTP/SCS for the San Francisco Bay Area. Plan Bay Area establishes GHG emissions goals for automobiles and light-duty trucks, a potent source of GHG emissions attributable to land use development. As previously described, ABAG was tasked by CARB to achieve a 7 percent per capita reduction in mobile-source GHG emissions compared to 2005 vehicle emissions by 2020 and a 15 percent per capita reduction by 2035. Plan Bay Area 2013-2040 establishes an overall mechanism to achieve these GHG targets for the Project region consistent with both the target date of AB 32 (2020) and the post-2020 GHG reduction goals of SB 32. CARB has confirmed the Project region will achieve its GHG reduction targets by implementing Plan Bay Area (CARB 2014). The RTP/SCS contains thousands of individual transportation projects, including highway improvements, railway electrification, bicycle lanes,



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new transit hubs, and replacement bridges. These future investments seek to reduce traffic bottlenecks, improve the efficiency of the region’s network, and expand mobility choices. The RTP/SCS is an important planning document for the region, allowing project sponsors to qualify for federal funding. In addition, the RTP/SCS is supported by a combination of transportation and land use strategies that help the region achieve state GHG emission reduction goals and federal Clean Air Act requirements, preserve open space areas, improve public health and roadway safety, support the vital goods movement industry, and use resources more efficiently.

Plan Bay Area 2040’s core strategy is “focused growth” in existing communities along the existing transportation network. This strategy allows the best “bang for the buck” in achieving key regional economic, environmental and equity goals: It builds upon existing community characteristics, efficiently leverages existing infrastructure and mitigates impacts on areas with less development. The RTP/SCS identifies 200 “Priority Development Areas” which are areas focused for growth and development. Priority Development Areas are defined by the RTP/SCS as existing neighborhoods that are served by public transit and have been identified as appropriate for additional, compact development.

The Project site is located in an area identified as a Priority Development Area in the RTP/SCS. Since the Project site is a Priority Development Area in the RTP/SCS planning period as opposed to “Priority Conservation Area,” it is included in an area where urban development is both predicted and encouraged by ABAG (ABAG 2017, Map 4.5). Furthermore, the Project is a modernization of land uses within a built environment (infill development), resulting in an increase of land use densification on the Project site. The Project will increase density in the vicinity over current conditions. Increased density, measured in terms of persons, jobs, or building square footage, potentially reduces emissions associated with transportation as it reduces the distance people travel for work or services and provides a foundation for the implementation of other strategies such as enhanced transit services. The Project would increase the site density to 25 dwelling units on top of an additional 108,087 square feet of office space.

For these reasons, the Project is consistent with Plan Bay Area and it can be assumed that regional mobile emissions will decrease in line with the goals of Plan Bay Area with implementation of the proposed Project. Implementing ABAG’s RTP/SCS will greatly reduce the regional GHG emissions from transportation, and the proposed Project will not obstruct the achievement of Plan Bay Area’s emission reduction targets.

CONTRIBUTION OF GREENHOUSE GAS EMISSIONS Construction

Construction-related activities that would generate GHGs include worker commute trips, haul trucks carrying supplies and materials to and from the Project site, and off-road construction equipment (e.g., dozers, loaders, excavators). Table 3-2 illustrates the specific construction-generated GHG emissions that would result from construction of the Project.



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Table 3-2. Construction-Related Greenhouse Gas Emissions

Emissions Source CO2e (Metric Tons/ Year)

Construction 583

Total 583

Source: CalEEMod version 2016.3.2. Refer to Attachment A for Model Data Outputs. Notes: Emissions estimates account for the demolition of 12,510 square feet of structures and 193 tons of asphalt associated with the

existing surface parking lot. Emissions also account for the export of 53,302 cubic yards of soil associated with excavation of the below-grade parking structure. Building construction, paving, and architectural coating assumed to occur simultaneously.

As shown in Table 3-2, Project construction (including demolition activities) would result in the generation of approximately 583 metric tons of CO2e over the course of construction. Once construction is complete, the generation of these GHG emissions would cease. As previously stated, the BAAQMD does not have an adopted threshold of significance for construction-related GHG emissions. GHG emissions generated by the construction sector have been declining in recent years. For instance, construction equipment engine efficiency has continued to improve year after year. The first federal standards (Tier 1) for new off-road diesel engines were adopted in 1994 for engines over 50 horsepower and were phased in from 1996 to 2000. In 1996, a Statement of Principles pertaining to off-road diesel engines was signed between the EPA, CARB, and engine makers (including Caterpillar, Cummins, Deere, Detroit Diesel, Deutz, Isuzu, Komatsu, Kubota, Mitsubishi, Navistar, New Holland, Wis-Con, and Yanmar). On August 27, 1998, the EPA signed the final rule reflecting the provisions of the Statement of Principles. The 1998 regulation introduced Tier 1 standards for equipment under 50 horsepower and increasingly more stringent Tier 2 and Tier 3 standards for all equipment with phase-in schedules from 2000 to 2008. As a result, all off-road, diesel-fueled construction equipment manufactured in 2006 or later has been manufactured to Tier 3 standards. Tier 3 engine standards reduce precursor and subset GHG emissions such as nitrogen oxide by as much as 60 percent. On May 11, 2004, the EPA signed the final rule introducing Tier 4 emission standards, which are currently phased-in over the period of 2008-2015. The Tier 4 standards require that emissions of nitrogen oxide be further reduced by about 90 percent. All off-road, diesel-fueled construction equipment manufactured in 2015 or later will be manufactured to Tier 4 standards.

In addition, the California Energy Commission recently adopted changes to the 2016 Building Energy Efficiency Standards contained in the California Code of Regulations, Title 24, Part 6 (also known as the California Energy Code). The 2016 update to the Building Energy Efficiency Standards focuses on several key areas to improve the energy efficiency of newly constructed buildings and additions and alterations to existing buildings. For instance, effective January 1, 2017, owners/builder of construction projects have been required to divert (recycle) 65 percent of generated construction waste materials generated during the project. This requirement greatly reduces the generation of GHG emissions by reducing decomposition at landfills, which is a source of CH4, and reducing demand for natural resources.

Operations

Operation of the Project would result in GHG emissions. Projected GHG emissions associated with proposed operations are quantified and compared to the existing baseline, which as previously stated includes a fast-food restaurant with drive-through, auto repair facility, industrial warehouse, and surface



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parking. Table 3-3 summarizes all the direct and indirect annual GHG emissions associated with the Project.

Table 3-3. Operational Greenhouse Gas Emissions

Emission Source CO2e (Metric Tons/ Year)

Proposed Mixed-Use Building 25 Residential Apartments, Office Space (108,087 square feet), and 2-Level Subterranean Parking Garage (179 spaces)

Area Source (landscaping, hearth) 0

Energy 373

Mobile 280

Waste 56

Water 9

Total 718

Existing Fast-Food Restaurant with Drive-Through, Auto Repair Facility, and Industrial Warehouse Building


Energy 59

Mobile 190

Waste 32

Water 5

Total 286

Difference


Energy +314

Mobile +90

Waste +24

Water +4

Total +432

BAAQMD Bright-Line Significance Threshold 1,100

Exceed BAAQMD Daily Threshold? No

Source: CalEEMod version 2016.3.2. Refer to Attachment A for Model Data Outputs. Notes: Emissions projections account for a trip generation rate identified by Hexagon Transportation Consultants 2018. Project emissions

account for adherence to the 2016 California Title 24 Building Energy Efficiency Standards; Existing Baseline emissions do not.

As shown in Table 3-3, the increase in operational GHG emissions over the existing baseline would be 432 metric tons of CO2e per year as a result of the Project. Therefore, the proposed Project would not surpass the BAAQMD bright-line numeric significance threshold of 1,100 metric tons of CO2e annually. BAAQMD thresholds were developed based on substantial evidence that such thresholds represent quantitative levels of GHG emissions, compliance with which means that the environmental impact of the GHG emissions will normally not be cumulatively considerable under CEQA (BAAQMD 2017a). Compliance with



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such thresholds will be part of the solution to the cumulative GHG emissions problem, rather than hinder the state’s ability to meet its goals of reduced statewide GHG emissions under AB 32.

CUMULATIVE GHG IMPACTS Climate change is a global problem. And GHGs are global pollutants, unlike criteria air pollutants and toxic air contaminants, which are pollutants of regional and local concern. Whereas pollutants with localized air quality effects have relatively short atmospheric lifetimes (about 1 day), GHGs have much longer atmospheric lifetimes of 1 year to several thousand years that allow them to be dispersed around the globe. It is generally the case that an individual project of this size and nature is of insufficient magnitude by itself to influence climate change or result in a substantial contribution to the global GHG inventory. GHG impacts are recognized as exclusively cumulative impacts; there are no non-cumulative GHG emission impacts from a climate change perspective. The additive effect of Project-related GHGs would not result in a reasonably foreseeable cumulatively considerable contribution to global climate change. In addition, the proposed Project as well as other cumulative related projects would also be subject to all applicable regulatory requirements, which would further reduce GHG emissions. As previously discussed, the proposed Project would not conflict with San Mateo Climate Action Plan, the BAAQMD 2017 Clean Air Plan, or Plan Bay Area, the RTP/SCS for the Bay Area. As a result, the Project would not conflict with any GHG reduction plans. Therefore, the Project’s cumulative contribution of GHG emissions would be less than significant and the Project’s cumulative GHG impacts would also be less than cumulatively considerable.



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4.0 REFERENCES

ABAG (Association of Bay Area Governments). 2017. Plan Bay Area 2040, Regional Transportation Plan and Sustainable Communities Strategy for the San Francisco Bay Area. Adopted July 26, 2017.

BAAQMD (Bay Area Air Quality Management District).

———. 2012a. Stationary Source Screening Analysis Tool. http://www.baaqmd.gov/plans-and-climate/california-environmental-quality-act-ceqa/ceqa-tools

———. 2012b. Distance Adjustment Multiplier Tool [Gasoline Dispensing Facility & Diesel Internal Combustion Engine. http://www.baaqmd.gov/plans-and-climate/california-environmental-quality-act-ceqa/ceqa-tools

———. 2015a. Roadway Screening Analysis Calculator

———. 2015b. Railway Screening Analysis Tool.

2017a. Bay Area Air Quality Management District CEQA Air Quality Guidelines.

———. 2017b. Bay Area Final 2017 Clean Air Plan.

———. 2017c. California Greenhouse Gas Emission Inventory 2017 Edition. https://www.arb.ca.gov/cc/inventory/data/data.htm.

CARB (California Air Resources Board). 2000. Risk Reduction Plan to Reduce Particulate Matter Emissions from Diesel-Fueled Engines and Vehicles.

———. 2005. California Almanac of Emissions and Air Quality.

———. 2014. Technical Valuation of the Greenhouse Gas Emission Reduction Quantification for Association of Monterey Bay Area Governments’ SB 375 Sustainable Communities Strategy. http://www.arb.ca.gov/cc/sb375/sb375.htm.

———. 2017a. State and Federal Area Designation Maps. http://www.arb.ca.gov/desig/adm/adm.htm.

———. 2017b. California Greenhouse Gas Emission Inventory 2017 Edition. https://www.arb.ca.gov/cc/inventory/data/data.htm.

———. 2018. Air Quality Data Statistics. http://www.arb.ca.gov/adam/index.html.

CAPCOA (California Air Pollution Control Officers Association). 2009. Health Risk Assessments for Proposed Land Use Projects.

——— .2013. Health Effects. http://www.capcoa.org/health-effects/.

———. 2017. California Emissions Estimator Model (CalEEMod), version 2016.3.2.

EPA (US Environmental Protection Agency). 2011. Air and Water Quality Impacts of Brownfield Redevelopment.



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———. 2016a. Climate Change – Greenhouse Gas Emissions: Carbon Dioxide. http://www.epa.gov/climatechange/emissions/co2.html.

———. 2016b. Methane. https://www3.epa.gov/climatechange/ghgemissions/gases/ch4.html.

———. 2016c. Nitrous Oxide. https://www3.epa.gov/climatechange/ghgemissions/gases/n2o.html.

Hexagon Transportation Consultants, Inc. 2018. 406 E. 3rd Avenue Mixed-Use Development – Transportation Impact Analysis.

IPCC (Intergovernmental Panel on Climate Change). 2013. Carbon and Other Biogeochemical Cycles. In: Climate Change 2013: The Physical Science Basis. Contribution of Working Group I to the Fifth Assessment Report of the Intergovernmental Panel on Climate Change. http://www.climatechange2013.org/ images/report/WG1AR5_ALL_FINAL.pdf.

———. 2014. Climate Change 2014 Synthesis Report: Approved Summary for Policymakers. http://www.ipcc.ch/.

OEHHA (California Environmental Protection Agency’s Office of Environmental Health Hazard Assessment). 2003. The Air Toxics Hot Spots Program Guidance Manual for Preparation of Health Risk Assessments.

———. 2015. Guidance Manual for Preparation of Health Risk Assessments.

PCJPB (Peninsula Corridor Joint Powers Board). 2014. Peninsula Corridor Electrification Project Draft Environmental Impact Report. February 2014

San Mateo City. 2010. City of San Mateo General Plan Circulation Element. Adopted 2010.

ATTACHMENT A

CalEEMod Output Files – Criteria Air Pollutants & Greenhouse Gas Emissions

1.1 Land Usage

Land Uses Size Metric Lot Acreage Floor Surface Area Population

General Office Building 108.09 1000sqft 0.88 108,087.00 0

Enclosed Parking with Elevator 179.00 Space 0.00 71,600.00 0

Apartments Mid Rise 25.00 Dwelling Unit 0.00 25,000.00 72

1.2 Other Project Characteristics

Urbanization

Climate Zone

Urban

5

Wind Speed (m/s) Precipitation Freq (Days)2.2 70

1.3 User Entered Comments & Non-Default Data

1.0 Project Characteristics

Utility Company Pacific Gas & Electric Company

2020Operational Year

CO2 Intensity (lb/MWhr)

290 0.029CH4 Intensity (lb/MWhr)

0.006N2O Intensity (lb/MWhr)

406 East 3rd Ave Office & Residential - Proposed ProjectSan Mateo County, Summer

CalEEMod Version: CalEEMod.2016.3.2 Date: 2/7/2019 4:05 PMPage 1 of 28

406 East 3rd Ave Office & Residential - Proposed Project - San Mateo County, Summer

Project Characteristics - PG&E 2020 CO2 Intensity Factor

Land Use - Lot acreage = 0.88 acre

Construction Phase - Site prep & Grading extended to account for soil excavation of underground parking structure. Building construction, paving, and painting assumed to occur simultaneously

Trips and VMT - Construction worker commute lengths set to 27.9 miles pre previous Hampton Inn Hexagon TIA

Demolition -

Grading -

Vehicle Trips - Trip rate per Traffic Impact Assessment

Woodstoves - No woodstoves and no fire places

Energy Use -

Water And Wastewater - Water use per Project Plans

Construction Off-road Equipment Mitigation - BAAQMD Basic Construction Measures. Tier 3 engines.

Mobile Land Use Mitigation -

Water Mitigation -

Table Name Column Name Default Value New Value

tblConstDustMitigation CleanPavedRoadPercentReduction 0 60

tblConstDustMitigation WaterUnpavedRoadVehicleSpeed 0 15

tblConstEquipMitigation NumberOfEquipmentMitigated 0.00 1.00




tblConstEquipMitigation Tier No Change Tier 3




tblConstructionPhase NumDays 5.00 100.00







tblFireplaces FireplaceWoodMass 228.80 0.00

tblFireplaces NumberGas 3.75 0.00

tblFireplaces NumberNoFireplace 1.00 25.00

tblFireplaces NumberWood 4.25 0.00

tblGrading MaterialExported 0.00 35,535.00


tblLandUse LandUseSquareFeet 108,090.00 108,087.00

tblLandUse LotAcreage 2.48 0.88



tblProjectCharacteristics CO2IntensityFactor 641.35 290

tblTripsAndVMT WorkerTripLength 10.80 27.90






tblVehicleTrips ST_TR 6.39 2.84

tblVehicleTrips SU_TR 5.86 2.84

tblVehicleTrips WD_TR 6.65 2.84


tblWater IndoorWaterUseRate 1,628,850.64 437,359.00

tblWater IndoorWaterUseRate 19,211,240.82 4,708,046.00

tblWater OutdoorWaterUseRate 1,026,884.10 0.00



2.0 Emissions Summary


tblWoodstoves NumberCatalytic 0.50 0.00

tblWoodstoves NumberNoncatalytic 0.50 0.00

tblWoodstoves WoodstoveWoodMass 582.40 0.00



2.1 Overall Construction (Maximum Daily Emission)

ROG NOx CO SO2 Fugitive PM10

Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total

Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e

Year lb/day lb/day

2020 17.7670 40.2434 23.4640 0.0964 2.8090 1.0606 3.7789 0.9636 0.9888 1.7144 0.0000 10,679.2521

10,679.2521

1.4634 0.0000 10,713.6748

Maximum 17.7670 40.2434 23.4640 0.0964 2.8090 1.0606 3.7789 0.9636 0.9888 1.7144 0.0000 10,679.2521

10,679.2521

1.4634 0.0000 10,713.6748

Unmitigated Construction


Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total


Year lb/day lb/day

2020 17.2272 38.2375 24.1216 0.0964 1.4332 0.9682 2.2880 0.5046 0.9358 1.3182 0.0000 10,679.2521

10,679.2521

1.4634 0.0000 10,713.6748

Maximum 17.2272 38.2375 24.1216 0.0964 1.4332 0.9682 2.2880 0.5046 0.9358 1.3182 0.0000 10,679.2521

10,679.2521

1.4634 0.0000 10,713.6748

Mitigated Construction


Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total

Bio- CO2 NBio-CO2 Total CO2 CH4 N20 CO2e

Percent Reduction

3.04 4.98 -2.80 0.00 48.98 8.72 39.45 47.63 5.36 23.11 0.00 0.00 0.00 0.00 0.00 0.00



2.2 Overall Operational


Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total


Category lb/day lb/day

Area 3.3527 0.0242 2.0989 1.1000e-004

0.0115 0.0115 0.0115 0.0115 0.0000 3.7766 3.7766 3.7900e-003

0.0000 3.8714

Energy 0.0682 0.6163 0.4949 3.7200e-003

0.0471 0.0471 0.0471 0.0471 743.7816 743.7816 0.0143 0.0136 748.2015

Mobile 1.5441 4.2850 16.1712 0.0549 4.8688 0.0571 4.9259 1.3037 0.0537 1.3573 5,531.2982

5,531.2982

0.1969 5,536.2213

Total 4.9649 4.9255 18.7649 0.0587 4.8688 0.1157 4.9845 1.3037 0.1122 1.4159 0.0000 6,278.8564

6,278.8564

0.2150 0.0136 6,288.2942

Unmitigated Operational


Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Area 3.3527 0.0242 2.0989 1.1000e-004

0.0115 0.0115 0.0115 0.0115 0.0000 3.7766 3.7766 3.7900e-003

0.0000 3.8714

Energy 0.0682 0.6163 0.4949 3.7200e-003

0.0471 0.0471 0.0471 0.0471 743.7816 743.7816 0.0143 0.0136 748.2015

Mobile 1.1969 2.5442 8.3627 0.0223 1.8607 0.0252 1.8859 0.4982 0.0236 0.5218 2,241.1912

2,241.1912

0.0921 2,243.4946

Total 4.6177 3.1847 10.9564 0.0261 1.8607 0.0838 1.9445 0.4982 0.0822 0.5804 0.0000 2,988.7494

2,988.7494

0.1102 0.0136 2,995.5675

Mitigated Operational



3.0 Construction Detail

Construction Phase

Phase Number

Phase Name Phase Type Start Date End Date Num Days Week

Num Days Phase Description

1 Demolition Demolition 3/4/2020 3/31/2020 5 20

2 Site Preparation Site Preparation 4/1/2020 4/30/2020 5 22

3 Grading Grading 5/1/2020 7/1/2020 5 44

4 Building Construction Building Construction 7/2/2020 11/18/2020 5 100

5 Paving Paving 7/2/2020 11/18/2020 5 100

6 Architectural Coating Architectural Coating 7/2/2020 11/18/2020 5 100

OffRoad Equipment


Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total


Percent Reduction

6.99 35.34 41.61 55.58 61.78 27.60 60.99 61.78 26.76 59.01 0.00 52.40 52.40 48.74 0.00 52.36

Residential Indoor: 50,625; Residential Outdoor: 16,875; Non-Residential Indoor: 162,131; Non-Residential Outdoor: 54,044; Striped Parking Area: 4,296 (Architectural Coating – sqft)

Acres of Grading (Site Preparation Phase): 11

Acres of Grading (Grading Phase): 0

Acres of Paving: 0



Phase Name Offroad Equipment Type Amount Usage Hours Horse Power Load Factor

Demolition Concrete/Industrial Saws 1 8.00 81 0.73

Demolition Rubber Tired Dozers 1 1.00 247 0.40

Demolition Tractors/Loaders/Backhoes 2 6.00 97 0.37

Site Preparation Graders 1 8.00 187 0.41

Site Preparation Tractors/Loaders/Backhoes 1 8.00 97 0.37

Grading Concrete/Industrial Saws 1 8.00 81 0.73

Grading Rubber Tired Dozers 1 1.00 247 0.40

Grading Tractors/Loaders/Backhoes 2 6.00 97 0.37

Building Construction Cranes 1 4.00 231 0.29

Building Construction Forklifts 2 6.00 89 0.20

Building Construction Tractors/Loaders/Backhoes 2 8.00 97 0.37

Paving Cement and Mortar Mixers 4 6.00 9 0.56

Paving Pavers 1 7.00 130 0.42

Paving Rollers 1 7.00 80 0.38

Paving Tractors/Loaders/Backhoes 1 7.00 97 0.37

Architectural Coating Air Compressors 1 6.00 78 0.48

Trips and VMT

Phase Name Offroad Equipment Count

Worker Trip Number

Vendor Trip Number

Hauling Trip Number

Worker Trip Length

Vendor Trip Length

Hauling Trip Length

Worker Vehicle Class

Vendor Vehicle Class

Hauling Vehicle Class

Demolition 4 10.00 0.00 76.00 27.90 7.30 20.00 LD_Mix HDT_Mix HHDT

Site Preparation 2 5.00 0.00 2,221.00 27.90 7.30 20.00 LD_Mix HDT_Mix HHDT

Grading 4 10.00 0.00 4,442.00 27.90 7.30 20.00 LD_Mix HDT_Mix HHDT

Building Construction 5 83.00 32.00 0.00 27.90 7.30 20.00 LD_Mix HDT_Mix HHDT

Paving 7 18.00 0.00 0.00 27.90 7.30 20.00 LD_Mix HDT_Mix HHDT

Architectural Coating 1 17.00 0.00 0.00 27.90 7.30 20.00 LD_Mix HDT_Mix HHDT



3.2 Demolition - 2020


Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Fugitive Dust 0.8217 0.0000 0.8217 0.1244 0.0000 0.1244 0.0000 0.0000

Off-Road 0.8674 7.8729 7.6226 0.0120 0.4672 0.4672 0.4457 0.4457 1,147.2352

1,147.2352

0.2169 1,152.6578

Total 0.8674 7.8729 7.6226 0.0120 0.8217 0.4672 1.2889 0.1244 0.4457 0.5701 1,147.2352

1,147.2352

0.2169 1,152.6578

Unmitigated Construction On-Site

3.1 Mitigation Measures Construction

Use Cleaner Engines for Construction Equipment

Use Soil Stabilizer

Water Exposed Area

Reduce Vehicle Speed on Unpaved Roads

Clean Paved Roads





Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Hauling 0.0334 1.1967 0.5077 3.1000e-003

0.0660 3.7800e-003

0.0698 0.0181 3.6100e-003

0.0217 351.4634 351.4634 0.0435 352.5517

Vendor 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 0.0000

Worker 0.0576 0.0385 0.4844 1.9500e-003

0.2121 1.1800e-003

0.2132 0.0562 1.0900e-003

0.0573 194.6927 194.6927 3.5700e-003

194.7818

Total 0.0910 1.2352 0.9921 5.0500e-003

0.2780 4.9600e-003

0.2830 0.0743 4.7000e-003

0.0790 546.1561 546.1561 0.0471 547.3335

Unmitigated Construction Off-Site


Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Fugitive Dust 0.3698 0.0000 0.3698 0.0560 0.0000 0.0560 0.0000 0.0000

Off-Road 0.5583 6.4055 7.7660 0.0120 0.3996 0.3996 0.3996 0.3996 0.0000 1,147.2352

1,147.2352

0.2169 1,152.6578

Total 0.5583 6.4055 7.7660 0.0120 0.3698 0.3996 0.7694 0.0560 0.3996 0.4556 0.0000 1,147.2352

1,147.2352

0.2169 1,152.6578

Mitigated Construction On-Site





Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Hauling 0.0334 1.1967 0.5077 3.1000e-003

0.0358 3.7800e-003

0.0396 0.0107 3.6100e-003

0.0143 351.4634 351.4634 0.0435 352.5517

Vendor 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 0.0000

Worker 0.0576 0.0385 0.4844 1.9500e-003

0.1014 1.1800e-003

0.1026 0.0291 1.0900e-003

0.0302 194.6927 194.6927 3.5700e-003

194.7818

Total 0.0910 1.2352 0.9921 5.0500e-003

0.1372 4.9600e-003

0.1422 0.0397 4.7000e-003

0.0444 546.1561 546.1561 0.0471 547.3335

Mitigated Construction Off-Site

3.3 Site Preparation - 2020


Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Fugitive Dust 0.6216 0.0000 0.6216 0.0711 0.0000 0.0711 0.0000 0.0000

Off-Road 0.6853 8.4307 4.0942 9.7400e-003

0.3353 0.3353 0.3085 0.3085 943.4872 943.4872 0.3051 951.1158

Total 0.6853 8.4307 4.0942 9.7400e-003

0.6216 0.3353 0.9569 0.0711 0.3085 0.3796 943.4872 943.4872 0.3051 951.1158






Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Hauling 0.8867 31.7935 13.4883 0.0825 1.7528 0.1003 1.8531 0.4797 0.0960 0.5757 9,337.3242

9,337.3242

1.1564 9,366.2352

Vendor 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 0.0000

Worker 0.0288 0.0192 0.2422 9.8000e-004

0.1060 5.9000e-004

0.1066 0.0281 5.5000e-004

0.0287 97.3463 97.3463 1.7800e-003

97.3909

Total 0.9155 31.8127 13.7305 0.0834 1.8589 0.1009 1.9598 0.5078 0.0965 0.6043 9,434.6705

9,434.6705

1.1582 9,463.6261



Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Fugitive Dust 0.2797 0.0000 0.2797 0.0320 0.0000 0.0320 0.0000 0.0000

Off-Road 0.2382 4.8716 5.8579 9.7400e-003

0.2405 0.2405 0.2405 0.2405 0.0000 943.4872 943.4872 0.3051 951.1158

Total 0.2382 4.8716 5.8579 9.7400e-003

0.2797 0.2405 0.5202 0.0320 0.2405 0.2725 0.0000 943.4872 943.4872 0.3051 951.1158






Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Hauling 0.8867 31.7935 13.4883 0.0825 0.9520 0.1003 1.0523 0.2831 0.0960 0.3791 9,337.3242

9,337.3242

1.1564 9,366.2352

Vendor 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 0.0000

Worker 0.0288 0.0192 0.2422 9.8000e-004

0.0507 5.9000e-004

0.0513 0.0145 5.5000e-004

0.0151 97.3463 97.3463 1.7800e-003

97.3909

Total 0.9155 31.8127 13.7305 0.0834 1.0027 0.1009 1.1036 0.2977 0.0965 0.3942 9,434.6705

9,434.6705

1.1582 9,463.6261


3.4 Grading - 2020


Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Fugitive Dust 0.8441 0.0000 0.8441 0.4276 0.0000 0.4276 0.0000 0.0000

Off-Road 0.8674 7.8729 7.6226 0.0120 0.4672 0.4672 0.4457 0.4457 1,147.2352

1,147.2352

0.2169 1,152.6578

Total 0.8674 7.8729 7.6226 0.0120 0.8441 0.4672 1.3113 0.4276 0.4457 0.8733 1,147.2352

1,147.2352

0.2169 1,152.6578




3.4 Grading - 2020


Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Hauling 0.8867 31.7935 13.4883 0.0825 1.7528 0.1003 1.8531 0.4797 0.0960 0.5757 9,337.3242

9,337.3242

1.1564 9,366.2352

Vendor 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 0.0000

Worker 0.0576 0.0385 0.4844 1.9500e-003

0.2121 1.1800e-003

0.2132 0.0562 1.0900e-003

0.0573 194.6927 194.6927 3.5700e-003

194.7818

Total 0.9443 31.8319 13.9727 0.0844 1.9649 0.1015 2.0664 0.5359 0.0970 0.6330 9,532.0169

9,532.0169

1.1600 9,561.0170



Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Fugitive Dust 0.3798 0.0000 0.3798 0.1924 0.0000 0.1924 0.0000 0.0000

Off-Road 0.5583 6.4055 7.7660 0.0120 0.3996 0.3996 0.3996 0.3996 0.0000 1,147.2352

1,147.2352

0.2169 1,152.6578

Total 0.5583 6.4055 7.7660 0.0120 0.3798 0.3996 0.7795 0.1924 0.3996 0.5920 0.0000 1,147.2352

1,147.2352

0.2169 1,152.6578




3.4 Grading - 2020


Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Hauling 0.8867 31.7935 13.4883 0.0825 0.9520 0.1003 1.0523 0.2831 0.0960 0.3791 9,337.3242

9,337.3242

1.1564 9,366.2352

Vendor 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 0.0000

Worker 0.0576 0.0385 0.4844 1.9500e-003

0.1014 1.1800e-003

0.1026 0.0291 1.0900e-003

0.0302 194.6927 194.6927 3.5700e-003

194.7818

Total 0.9443 31.8319 13.9727 0.0844 1.0534 0.1015 1.1549 0.3122 0.0970 0.4093 9,532.0169

9,532.0169

1.1600 9,561.0170


3.5 Building Construction - 2020


Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Off-Road 0.8617 8.8523 7.3875 0.0114 0.5224 0.5224 0.4806 0.4806 1,102.9781

1,102.9781

0.3567 1,111.8962

Total 0.8617 8.8523 7.3875 0.0114 0.5224 0.5224 0.4806 0.4806 1,102.9781

1,102.9781

0.3567 1,111.8962






Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Hauling 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 0.0000

Vendor 0.1215 3.6547 1.4168 8.5700e-003

0.2160 0.0183 0.2343 0.0621 0.0175 0.0797 941.6427 941.6427 0.0804 943.6518

Worker 0.4779 0.3194 4.0202 0.0162 1.7601 9.8300e-003

1.7699 0.4667 9.0600e-003

0.4757 1,615.9490

1,615.9490

0.0296 1,616.6891

Total 0.5994 3.9741 5.4370 0.0248 1.9761 0.0281 2.0042 0.5288 0.0266 0.5554 2,557.5917

2,557.5917

0.1100 2,560.3409



Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Off-Road 0.4388 6.7856 7.9905 0.0114 0.4401 0.4401 0.4285 0.4285 0.0000 1,102.9781

1,102.9781

0.3567 1,111.8962

Total 0.4388 6.7856 7.9905 0.0114 0.4401 0.4401 0.4285 0.4285 0.0000 1,102.9781

1,102.9781

0.3567 1,111.8962






Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Hauling 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 0.0000

Vendor 0.1215 3.6547 1.4168 8.5700e-003

0.1233 0.0183 0.1416 0.0394 0.0175 0.0569 941.6427 941.6427 0.0804 943.6518

Worker 0.4779 0.3194 4.0202 0.0162 0.8416 9.8300e-003

0.8514 0.2412 9.0600e-003

0.2503 1,615.9490

1,615.9490

0.0296 1,616.6891

Total 0.5994 3.9741 5.4370 0.0248 0.9649 0.0281 0.9931 0.2806 0.0266 0.3072 2,557.5917

2,557.5917

0.1100 2,560.3409


3.6 Paving - 2020


Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Off-Road 0.7716 7.2266 7.1128 0.0113 0.3950 0.3950 0.3669 0.3669 1,035.3926

1,035.3926

0.3016 1,042.9323

Paving 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000

Total 0.7716 7.2266 7.1128 0.0113 0.3950 0.3950 0.3669 0.3669 1,035.3926

1,035.3926

0.3016 1,042.9323




3.6 Paving - 2020


Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Hauling 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 0.0000

Vendor 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 0.0000

Worker 0.1037 0.0693 0.8719 3.5100e-003

0.3817 2.1300e-003

0.3838 0.1012 1.9600e-003

0.1032 350.4468 350.4468 6.4200e-003

350.6073

Total 0.1037 0.0693 0.8719 3.5100e-003

0.3817 2.1300e-003

0.3838 0.1012 1.9600e-003

0.1032 350.4468 350.4468 6.4200e-003

350.6073



Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Off-Road 0.6547 6.9022 7.1674 0.0113 0.3849 0.3849 0.3661 0.3661 0.0000 1,035.3926

1,035.3926

0.3016 1,042.9323

Paving 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000

Total 0.6547 6.9022 7.1674 0.0113 0.3849 0.3849 0.3661 0.3661 0.0000 1,035.3926

1,035.3926

0.3016 1,042.9323




3.6 Paving - 2020


Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Hauling 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 0.0000

Vendor 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 0.0000

Worker 0.1037 0.0693 0.8719 3.5100e-003

0.1825 2.1300e-003

0.1847 0.0523 1.9600e-003

0.0543 350.4468 350.4468 6.4200e-003

350.6073

Total 0.1037 0.0693 0.8719 3.5100e-003

0.1825 2.1300e-003

0.1847 0.0523 1.9600e-003

0.0543 350.4468 350.4468 6.4200e-003

350.6073


3.7 Architectural Coating - 2020


Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Archit. Coating 15.0906 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000

Off-Road 0.2422 1.6838 1.8314 2.9700e-003

0.1109 0.1109 0.1109 0.1109 281.4481 281.4481 0.0218 281.9928

Total 15.3327 1.6838 1.8314 2.9700e-003

0.1109 0.1109 0.1109 0.1109 281.4481 281.4481 0.0218 281.9928






Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Hauling 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 0.0000

Vendor 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 0.0000

Worker 0.0979 0.0654 0.8234 3.3200e-003

0.3605 2.0100e-003

0.3625 0.0956 1.8600e-003

0.0974 330.9775 330.9775 6.0600e-003

331.1291

Total 0.0979 0.0654 0.8234 3.3200e-003

0.3605 2.0100e-003

0.3625 0.0956 1.8600e-003

0.0974 330.9775 330.9775 6.0600e-003

331.1291



Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Archit. Coating 15.0906 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000

Off-Road 0.2422 1.6838 1.8314 2.9700e-003

0.1109 0.1109 0.1109 0.1109 0.0000 281.4481 281.4481 0.0218 281.9928

Total 15.3327 1.6838 1.8314 2.9700e-003

0.1109 0.1109 0.1109 0.1109 0.0000 281.4481 281.4481 0.0218 281.9928




4.0 Operational Detail - Mobile

4.1 Mitigation Measures Mobile

Increase Density

Increase Diversity

Improve Destination Accessibility

Increase Transit Accessibility



Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Hauling 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 0.0000

Vendor 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 0.0000

Worker 0.0979 0.0654 0.8234 3.3200e-003

0.1724 2.0100e-003

0.1744 0.0494 1.8600e-003

0.0513 330.9775 330.9775 6.0600e-003

331.1291

Total 0.0979 0.0654 0.8234 3.3200e-003

0.1724 2.0100e-003

0.1744 0.0494 1.8600e-003

0.0513 330.9775 330.9775 6.0600e-003

331.1291





Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Mitigated 1.1969 2.5442 8.3627 0.0223 1.8607 0.0252 1.8859 0.4982 0.0236 0.5218 2,241.1912

2,241.1912

0.0921 2,243.4946

Unmitigated 1.5441 4.2850 16.1712 0.0549 4.8688 0.0571 4.9259 1.3037 0.0537 1.3573 5,531.2982

5,531.2982

0.1969 5,536.2213

4.2 Trip Summary Information

4.3 Trip Type Information

Average Daily Trip Rate Unmitigated Mitigated

Land Use Weekday Saturday Sunday Annual VMT Annual VMT

Apartments Mid Rise 71.00 71.00 71.00 163,982 62,670

Enclosed Parking with Elevator 0.00 0.00 0.00

General Office Building 890.66 265.90 113.49 1,649,853 630,529

Total 961.66 336.90 184.49 1,813,835 693,199

Miles Trip % Trip Purpose %

Land Use H-W or C-W H-S or C-C H-O or C-NW H-W or C-W H-S or C-C H-O or C-NW Primary Diverted Pass-by

Apartments Mid Rise 10.80 4.80 5.70 31.00 15.00 54.00 86 11 3

Enclosed Parking with Elevator 9.50 7.30 7.30 0.00 0.00 0.00 0 0 0

General Office Building 9.50 7.30 7.30 33.00 48.00 19.00 77 19 4

4.4 Fleet Mix



5.0 Energy Detail


Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



NaturalGas Mitigated

0.0682 0.6163 0.4949 3.7200e-003

0.0471 0.0471 0.0471 0.0471 743.7816 743.7816 0.0143 0.0136 748.2015

NaturalGas Unmitigated

0.0682 0.6163 0.4949 3.7200e-003

0.0471 0.0471 0.0471 0.0471 743.7816 743.7816 0.0143 0.0136 748.2015

5.1 Mitigation Measures Energy

Land Use LDA LDT1 LDT2 MDV LHD1 LHD2 MHD HHD OBUS UBUS MCY SBUS MH

Apartments Mid Rise 0.490452 0.049742 0.253638 0.136789 0.017926 0.006526 0.021436 0.006323 0.003943 0.003278 0.008771 0.000435 0.000741

Enclosed Parking with Elevator 0.490452 0.049742 0.253638 0.136789 0.017926 0.006526 0.021436 0.006323 0.003943 0.003278 0.008771 0.000435 0.000741

General Office Building 0.490452 0.049742 0.253638 0.136789 0.017926 0.006526 0.021436 0.006323 0.003943 0.003278 0.008771 0.000435 0.000741

Historical Energy Use: N



6.0 Area Detail

5.2 Energy by Land Use - NaturalGas

NaturalGas Use


Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total


Land Use kBTU/yr lb/day lb/day

Apartments Mid Rise

597.975 6.4500e-003

0.0551 0.0235 3.5000e-004

4.4600e-003

4.4600e-003

4.4600e-003

4.4600e-003

70.3500 70.3500 1.3500e-003

1.2900e-003

70.7680

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 0.0000 0.0000 0.0000

General Office Building

5724.17 0.0617 0.5612 0.4714 3.3700e-003

0.0427 0.0427 0.0427 0.0427 673.4317 673.4317 0.0129 0.0124 677.4335

Total 0.0682 0.6163 0.4949 3.7200e-003

0.0471 0.0471 0.0471 0.0471 743.7816 743.7816 0.0143 0.0136 748.2015

Unmitigated

NaturalGas Use


Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Apartments Mid Rise

0.597975 6.4500e-003

0.0551 0.0235 3.5000e-004

4.4600e-003

4.4600e-003

4.4600e-003

4.4600e-003

70.3500 70.3500 1.3500e-003

1.2900e-003

70.7680


0 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


5.72417 0.0617 0.5612 0.4714 3.3700e-003

0.0427 0.0427 0.0427 0.0427 673.4317 673.4317 0.0129 0.0124 677.4335

Total 0.0682 0.6163 0.4949 3.7200e-003

0.0471 0.0471 0.0471 0.0471 743.7816 743.7816 0.0143 0.0136 748.2015

Mitigated



6.1 Mitigation Measures Area

6.0 Area Detail


Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Mitigated 3.3527 0.0242 2.0989 1.1000e-004

0.0115 0.0115 0.0115 0.0115 0.0000 3.7766 3.7766 3.7900e-003

0.0000 3.8714

Unmitigated 3.3527 0.0242 2.0989 1.1000e-004

0.0115 0.0115 0.0115 0.0115 0.0000 3.7766 3.7766 3.7900e-003

0.0000 3.8714



6.2 Area by SubCategory


Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total


SubCategory lb/day lb/day

Architectural Coating

0.4134 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000

Consumer Products

2.8734 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000

Hearth 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 0.0000

Landscaping 0.0658 0.0242 2.0989 1.1000e-004

0.0115 0.0115 0.0115 0.0115 3.7766 3.7766 3.7900e-003

3.8714

Total 3.3527 0.0242 2.0989 1.1000e-004

0.0115 0.0115 0.0115 0.0115 0.0000 3.7766 3.7766 3.7900e-003

0.0000 3.8714

Unmitigated



8.1 Mitigation Measures Waste

Install Low Flow Bathroom Faucet

Install Low Flow Kitchen Faucet

Install Low Flow Toilet

Install Low Flow Shower

Use Water Efficient Irrigation System

7.1 Mitigation Measures Water

7.0 Water Detail

8.0 Waste Detail



Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total




0.4134 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000

Consumer Products

2.8734 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000

Hearth 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 0.0000

Landscaping 0.0658 0.0242 2.0989 1.1000e-004

0.0115 0.0115 0.0115 0.0115 3.7766 3.7766 3.7900e-003

3.8714

Total 3.3527 0.0242 2.0989 1.1000e-004

0.0115 0.0115 0.0115 0.0115 0.0000 3.7766 3.7766 3.7900e-003

0.0000 3.8714

Mitigated



11.0 Vegetation

9.0 Operational Offroad

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

10.0 Stationary Equipment

Fire Pumps and Emergency Generators

Equipment Type Number Hours/Day Hours/Year Horse Power Load Factor Fuel Type

Boilers

Equipment Type Number Heat Input/Day Heat Input/Year Boiler Rating Fuel Type

User Defined Equipment

Equipment Type Number



1.1 Land Usage






Urbanization

Climate Zone

Urban

5









406 East 3rd Ave Office & Residential - Proposed ProjectSan Mateo County, Winter


406 East 3rd Ave Office & Residential - Proposed Project - San Mateo County, Winter





Demolition -

Grading -



Energy Use -




Water Mitigation -


















Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total


Year lb/day lb/day

2020 17.9007 41.2407 23.1381 0.0954 2.8090 1.0611 3.7794 0.9636 0.9892 1.7148 0.0000 10,567.8977

10,567.8977

1.4721 0.0000 10,602.5363

Maximum 17.9007 41.2407 23.1381 0.0954 2.8090 1.0611 3.7794 0.9636 0.9892 1.7148 0.0000 10,567.8977

10,567.8977

1.4721 0.0000 10,602.5363



Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total


Year lb/day lb/day

2020 17.3610 39.2393 23.7957 0.0954 1.4332 0.9686 2.2884 0.5046 0.9363 1.3186 0.0000 10,567.8977

10,567.8977

1.4721 0.0000 10,602.5363

Maximum 17.3610 39.2393 23.7957 0.0954 1.4332 0.9686 2.2884 0.5046 0.9363 1.3186 0.0000 10,567.8977

10,567.8977

1.4721 0.0000 10,602.5363



Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total


Percent Reduction

3.02 4.85 -2.84 0.00 48.98 8.71 39.45 47.63 5.35 23.10 0.00 0.00 0.00 0.00 0.00 0.00





Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Area 3.3527 0.0242 2.0989 1.1000e-004

0.0115 0.0115 0.0115 0.0115 0.0000 3.7766 3.7766 3.7900e-003

0.0000 3.8714

Energy 0.0682 0.6163 0.4949 3.7200e-003

0.0471 0.0471 0.0471 0.0471 743.7816 743.7816 0.0143 0.0136 748.2015

Mobile 1.4203 4.6489 16.7795 0.0521 4.8688 0.0573 4.9261 1.3037 0.0539 1.3575 5,251.6825

5,251.6825

0.2003 5,256.6891

Total 4.8411 5.2894 19.3732 0.0560 4.8688 0.1159 4.9847 1.3037 0.1124 1.4161 0.0000 5,999.2408

5,999.2408

0.2183 0.0136 6,008.7620



Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Area 3.3527 0.0242 2.0989 1.1000e-004

0.0115 0.0115 0.0115 0.0115 0.0000 3.7766 3.7766 3.7900e-003

0.0000 3.8714

Energy 0.0682 0.6163 0.4949 3.7200e-003

0.0471 0.0471 0.0471 0.0471 743.7816 743.7816 0.0143 0.0136 748.2015

Mobile 1.0708 2.7059 9.4562 0.0212 1.8607 0.0254 1.8861 0.4982 0.0238 0.5220 2,129.9460

2,129.9460

0.0977 2,132.3876

Total 4.4917 3.3464 12.0499 0.0250 1.8607 0.0840 1.9447 0.4982 0.0824 0.5806 0.0000 2,877.5042

2,877.5042

0.1157 0.0136 2,884.4605





Construction Phase

Phase Number





3 Grading Grading 5/1/2020 7/1/2020 5 44


5 Paving Paving 7/2/2020 11/18/2020 5 100


OffRoad Equipment


Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total


Percent Reduction

7.22 36.73 37.80 55.32 61.78 27.55 60.99 61.78 26.73 59.00 0.00 52.04 52.04 47.00 0.00 52.00




Acres of Paving: 0




















Trips and VMT


Worker Trip Number

Vendor Trip Number

Hauling Trip Number

Worker Trip Length

Vendor Trip Length

Hauling Trip Length














Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Fugitive Dust 0.8217 0.0000 0.8217 0.1244 0.0000 0.1244 0.0000 0.0000

Off-Road 0.8674 7.8729 7.6226 0.0120 0.4672 0.4672 0.4457 0.4457 1,147.2352

1,147.2352

0.2169 1,152.6578

Total 0.8674 7.8729 7.6226 0.0120 0.8217 0.4672 1.2889 0.1244 0.4457 0.5701 1,147.2352

1,147.2352

0.2169 1,152.6578




Use Soil Stabilizer

Water Exposed Area


Clean Paved Roads





Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Hauling 0.0341 1.2341 0.5185 3.0700e-003

0.0660 3.8700e-003

0.0699 0.0181 3.7000e-003

0.0218 347.7289 347.7289 0.0439 348.8255

Vendor 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 0.0000

Worker 0.0684 0.0476 0.4461 1.8300e-003

0.2121 1.1800e-003

0.2132 0.0562 1.0900e-003

0.0573 182.5532 182.5532 3.3100e-003

182.6360

Total 0.1025 1.2817 0.9646 4.9000e-003

0.2780 5.0500e-003

0.2831 0.0743 4.7900e-003

0.0791 530.2821 530.2821 0.0472 531.4615



Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Fugitive Dust 0.3698 0.0000 0.3698 0.0560 0.0000 0.0560 0.0000 0.0000

Off-Road 0.5583 6.4055 7.7660 0.0120 0.3996 0.3996 0.3996 0.3996 0.0000 1,147.2352

1,147.2352

0.2169 1,152.6578

Total 0.5583 6.4055 7.7660 0.0120 0.3698 0.3996 0.7694 0.0560 0.3996 0.4556 0.0000 1,147.2352

1,147.2352

0.2169 1,152.6578






Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Hauling 0.0341 1.2341 0.5185 3.0700e-003

0.0358 3.8700e-003

0.0397 0.0107 3.7000e-003

0.0144 347.7289 347.7289 0.0439 348.8255

Vendor 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 0.0000

Worker 0.0684 0.0476 0.4461 1.8300e-003

0.1014 1.1800e-003

0.1026 0.0291 1.0900e-003

0.0302 182.5532 182.5532 3.3100e-003

182.6360

Total 0.1025 1.2817 0.9646 4.9000e-003

0.1372 5.0500e-003

0.1423 0.0397 4.7900e-003

0.0445 530.2821 530.2821 0.0472 531.4615




Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Fugitive Dust 0.6216 0.0000 0.6216 0.0711 0.0000 0.0711 0.0000 0.0000

Off-Road 0.6853 8.4307 4.0942 9.7400e-003

0.3353 0.3353 0.3085 0.3085 943.4872 943.4872 0.3051 951.1158

Total 0.6853 8.4307 4.0942 9.7400e-003

0.6216 0.3353 0.9569 0.0711 0.3085 0.3796 943.4872 943.4872 0.3051 951.1158






Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Hauling 0.9046 32.7862 13.7737 0.0816 1.7528 0.1028 1.8557 0.4797 0.0984 0.5781 9,238.1092

9,238.1092

1.1653 9,267.2426

Vendor 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 0.0000

Worker 0.0342 0.0238 0.2231 9.1000e-004

0.1060 5.9000e-004

0.1066 0.0281 5.5000e-004

0.0287 91.2766 91.2766 1.6600e-003

91.3180

Total 0.9388 32.8100 13.9968 0.0825 1.8589 0.1034 1.9623 0.5078 0.0989 0.6067 9,329.3858

9,329.3858

1.1670 9,358.5606



Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Fugitive Dust 0.2797 0.0000 0.2797 0.0320 0.0000 0.0320 0.0000 0.0000

Off-Road 0.2382 4.8716 5.8579 9.7400e-003

0.2405 0.2405 0.2405 0.2405 0.0000 943.4872 943.4872 0.3051 951.1158

Total 0.2382 4.8716 5.8579 9.7400e-003

0.2797 0.2405 0.5202 0.0320 0.2405 0.2725 0.0000 943.4872 943.4872 0.3051 951.1158






Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Hauling 0.9046 32.7862 13.7737 0.0816 0.9520 0.1028 1.0548 0.2831 0.0984 0.3815 9,238.1092

9,238.1092

1.1653 9,267.2426

Vendor 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 0.0000

Worker 0.0342 0.0238 0.2231 9.1000e-004

0.0507 5.9000e-004

0.0513 0.0145 5.5000e-004

0.0151 91.2766 91.2766 1.6600e-003

91.3180

Total 0.9388 32.8100 13.9968 0.0825 1.0027 0.1034 1.1061 0.2977 0.0989 0.3966 9,329.3858

9,329.3858

1.1670 9,358.5606


3.4 Grading - 2020


Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Fugitive Dust 0.8441 0.0000 0.8441 0.4276 0.0000 0.4276 0.0000 0.0000

Off-Road 0.8674 7.8729 7.6226 0.0120 0.4672 0.4672 0.4457 0.4457 1,147.2352

1,147.2352

0.2169 1,152.6578

Total 0.8674 7.8729 7.6226 0.0120 0.8441 0.4672 1.3113 0.4276 0.4457 0.8733 1,147.2352

1,147.2352

0.2169 1,152.6578




3.4 Grading - 2020


Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Hauling 0.9046 32.7862 13.7737 0.0816 1.7528 0.1028 1.8557 0.4797 0.0984 0.5781 9,238.1092

9,238.1092

1.1653 9,267.2426

Vendor 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 0.0000

Worker 0.0684 0.0476 0.4461 1.8300e-003

0.2121 1.1800e-003

0.2132 0.0562 1.0900e-003

0.0573 182.5532 182.5532 3.3100e-003

182.6360

Total 0.9730 32.8338 14.2199 0.0834 1.9649 0.1040 2.0689 0.5359 0.0994 0.6354 9,420.6624

9,420.6624

1.1686 9,449.8786



Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Fugitive Dust 0.3798 0.0000 0.3798 0.1924 0.0000 0.1924 0.0000 0.0000

Off-Road 0.5583 6.4055 7.7660 0.0120 0.3996 0.3996 0.3996 0.3996 0.0000 1,147.2352

1,147.2352

0.2169 1,152.6578

Total 0.5583 6.4055 7.7660 0.0120 0.3798 0.3996 0.7795 0.1924 0.3996 0.5920 0.0000 1,147.2352

1,147.2352

0.2169 1,152.6578




3.4 Grading - 2020


Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Hauling 0.9046 32.7862 13.7737 0.0816 0.9520 0.1028 1.0548 0.2831 0.0984 0.3815 9,238.1092

9,238.1092

1.1653 9,267.2426

Vendor 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 0.0000

Worker 0.0684 0.0476 0.4461 1.8300e-003

0.1014 1.1800e-003

0.1026 0.0291 1.0900e-003

0.0302 182.5532 182.5532 3.3100e-003

182.6360

Total 0.9730 32.8338 14.2199 0.0834 1.0534 0.1040 1.1574 0.3122 0.0994 0.4117 9,420.6624

9,420.6624

1.1686 9,449.8786




Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Off-Road 0.8617 8.8523 7.3875 0.0114 0.5224 0.5224 0.4806 0.4806 1,102.9781

1,102.9781

0.3567 1,111.8962

Total 0.8617 8.8523 7.3875 0.0114 0.5224 0.5224 0.4806 0.4806 1,102.9781

1,102.9781

0.3567 1,111.8962






Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Hauling 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 0.0000

Vendor 0.1274 3.7127 1.5420 8.4300e-003

0.2160 0.0188 0.2347 0.0621 0.0179 0.0801 925.2166 925.2166 0.0822 927.2723

Worker 0.5679 0.3946 3.7030 0.0152 1.7601 9.8300e-003

1.7699 0.4667 9.0600e-003

0.4757 1,515.1915

1,515.1915

0.0275 1,515.8784

Total 0.6952 4.1073 5.2450 0.0236 1.9761 0.0286 2.0047 0.5288 0.0270 0.5558 2,440.4080

2,440.4080

0.1097 2,443.1506



Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Off-Road 0.4388 6.7856 7.9905 0.0114 0.4401 0.4401 0.4285 0.4285 0.0000 1,102.9781

1,102.9781

0.3567 1,111.8962

Total 0.4388 6.7856 7.9905 0.0114 0.4401 0.4401 0.4285 0.4285 0.0000 1,102.9781

1,102.9781

0.3567 1,111.8962






Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Hauling 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 0.0000

Vendor 0.1274 3.7127 1.5420 8.4300e-003

0.1233 0.0188 0.1421 0.0394 0.0179 0.0573 925.2166 925.2166 0.0822 927.2723

Worker 0.5679 0.3946 3.7030 0.0152 0.8416 9.8300e-003

0.8514 0.2412 9.0600e-003

0.2503 1,515.1915

1,515.1915

0.0275 1,515.8784

Total 0.6952 4.1073 5.2450 0.0236 0.9649 0.0286 0.9935 0.2806 0.0270 0.3076 2,440.4080

2,440.4080

0.1097 2,443.1506


3.6 Paving - 2020


Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Off-Road 0.7716 7.2266 7.1128 0.0113 0.3950 0.3950 0.3669 0.3669 1,035.3926

1,035.3926

0.3016 1,042.9323

Paving 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000

Total 0.7716 7.2266 7.1128 0.0113 0.3950 0.3950 0.3669 0.3669 1,035.3926

1,035.3926

0.3016 1,042.9323




3.6 Paving - 2020


Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Hauling 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 0.0000

Vendor 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 0.0000

Worker 0.1232 0.0856 0.8031 3.2900e-003

0.3817 2.1300e-003

0.3838 0.1012 1.9600e-003

0.1032 328.5957 328.5957 5.9600e-003

328.7447

Total 0.1232 0.0856 0.8031 3.2900e-003

0.3817 2.1300e-003

0.3838 0.1012 1.9600e-003

0.1032 328.5957 328.5957 5.9600e-003

328.7447



Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Off-Road 0.6547 6.9022 7.1674 0.0113 0.3849 0.3849 0.3661 0.3661 0.0000 1,035.3926

1,035.3926

0.3016 1,042.9323

Paving 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000

Total 0.6547 6.9022 7.1674 0.0113 0.3849 0.3849 0.3661 0.3661 0.0000 1,035.3926

1,035.3926

0.3016 1,042.9323




3.6 Paving - 2020


Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Hauling 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 0.0000

Vendor 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 0.0000

Worker 0.1232 0.0856 0.8031 3.2900e-003

0.1825 2.1300e-003

0.1847 0.0523 1.9600e-003

0.0543 328.5957 328.5957 5.9600e-003

328.7447

Total 0.1232 0.0856 0.8031 3.2900e-003

0.1825 2.1300e-003

0.1847 0.0523 1.9600e-003

0.0543 328.5957 328.5957 5.9600e-003

328.7447




Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Archit. Coating 15.0906 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000

Off-Road 0.2422 1.6838 1.8314 2.9700e-003

0.1109 0.1109 0.1109 0.1109 281.4481 281.4481 0.0218 281.9928

Total 15.3327 1.6838 1.8314 2.9700e-003

0.1109 0.1109 0.1109 0.1109 281.4481 281.4481 0.0218 281.9928






Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Hauling 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 0.0000

Vendor 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 0.0000

Worker 0.1163 0.0808 0.7584 3.1100e-003

0.3605 2.0100e-003

0.3625 0.0956 1.8600e-003

0.0974 310.3404 310.3404 5.6300e-003

310.4811

Total 0.1163 0.0808 0.7584 3.1100e-003

0.3605 2.0100e-003

0.3625 0.0956 1.8600e-003

0.0974 310.3404 310.3404 5.6300e-003

310.4811



Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Archit. Coating 15.0906 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000

Off-Road 0.2422 1.6838 1.8314 2.9700e-003

0.1109 0.1109 0.1109 0.1109 0.0000 281.4481 281.4481 0.0218 281.9928

Total 15.3327 1.6838 1.8314 2.9700e-003

0.1109 0.1109 0.1109 0.1109 0.0000 281.4481 281.4481 0.0218 281.9928






Increase Density

Increase Diversity





Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Hauling 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 0.0000

Vendor 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 0.0000

Worker 0.1163 0.0808 0.7584 3.1100e-003

0.1724 2.0100e-003

0.1744 0.0494 1.8600e-003

0.0513 310.3404 310.3404 5.6300e-003

310.4811

Total 0.1163 0.0808 0.7584 3.1100e-003

0.1724 2.0100e-003

0.1744 0.0494 1.8600e-003

0.0513 310.3404 310.3404 5.6300e-003

310.4811





Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Mitigated 1.0708 2.7059 9.4562 0.0212 1.8607 0.0254 1.8861 0.4982 0.0238 0.5220 2,129.9460

2,129.9460

0.0977 2,132.3876

Unmitigated 1.4203 4.6489 16.7795 0.0521 4.8688 0.0573 4.9261 1.3037 0.0539 1.3575 5,251.6825

5,251.6825

0.2003 5,256.6891








Total 961.66 336.90 184.49 1,813,835 693,199






4.4 Fleet Mix



5.0 Energy Detail


Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total




0.0682 0.6163 0.4949 3.7200e-003

0.0471 0.0471 0.0471 0.0471 743.7816 743.7816 0.0143 0.0136 748.2015


0.0682 0.6163 0.4949 3.7200e-003

0.0471 0.0471 0.0471 0.0471 743.7816 743.7816 0.0143 0.0136 748.2015









6.0 Area Detail


NaturalGas Use


Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Apartments Mid Rise

597.975 6.4500e-003

0.0551 0.0235 3.5000e-004

4.4600e-003

4.4600e-003

4.4600e-003

4.4600e-003

70.3500 70.3500 1.3500e-003

1.2900e-003

70.7680


0 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


5724.17 0.0617 0.5612 0.4714 3.3700e-003

0.0427 0.0427 0.0427 0.0427 673.4317 673.4317 0.0129 0.0124 677.4335

Total 0.0682 0.6163 0.4949 3.7200e-003

0.0471 0.0471 0.0471 0.0471 743.7816 743.7816 0.0143 0.0136 748.2015

Unmitigated

NaturalGas Use


Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Apartments Mid Rise

0.597975 6.4500e-003

0.0551 0.0235 3.5000e-004

4.4600e-003

4.4600e-003

4.4600e-003

4.4600e-003

70.3500 70.3500 1.3500e-003

1.2900e-003

70.7680


0 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


5.72417 0.0617 0.5612 0.4714 3.3700e-003

0.0427 0.0427 0.0427 0.0427 673.4317 673.4317 0.0129 0.0124 677.4335

Total 0.0682 0.6163 0.4949 3.7200e-003

0.0471 0.0471 0.0471 0.0471 743.7816 743.7816 0.0143 0.0136 748.2015

Mitigated




6.0 Area Detail


Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Mitigated 3.3527 0.0242 2.0989 1.1000e-004

0.0115 0.0115 0.0115 0.0115 0.0000 3.7766 3.7766 3.7900e-003

0.0000 3.8714

Unmitigated 3.3527 0.0242 2.0989 1.1000e-004

0.0115 0.0115 0.0115 0.0115 0.0000 3.7766 3.7766 3.7900e-003

0.0000 3.8714





Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total




0.4134 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000

Consumer Products

2.8734 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000

Hearth 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 0.0000

Landscaping 0.0658 0.0242 2.0989 1.1000e-004

0.0115 0.0115 0.0115 0.0115 3.7766 3.7766 3.7900e-003

3.8714

Total 3.3527 0.0242 2.0989 1.1000e-004

0.0115 0.0115 0.0115 0.0115 0.0000 3.7766 3.7766 3.7900e-003

0.0000 3.8714

Unmitigated










7.0 Water Detail

8.0 Waste Detail



Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total




0.4134 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000

Consumer Products

2.8734 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000

Hearth 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 0.0000

Landscaping 0.0658 0.0242 2.0989 1.1000e-004

0.0115 0.0115 0.0115 0.0115 3.7766 3.7766 3.7900e-003

3.8714

Total 3.3527 0.0242 2.0989 1.1000e-004

0.0115 0.0115 0.0115 0.0115 0.0000 3.7766 3.7766 3.7900e-003

0.0000 3.8714

Mitigated



11.0 Vegetation






Boilers






1.1 Land Usage






Urbanization

Climate Zone

Urban

5









406 East 3rd Ave Office & Residential - Proposed ProjectSan Mateo County, Annual


406 East 3rd Ave Office & Residential - Proposed Project - San Mateo County, Annual





Demolition -

Grading -



Energy Use -




Water Mitigation -
















2.1 Overall Construction


Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total


Year tons/yr MT/yr

2020 0.9570 2.5331 1.9090 6.0900e-003

0.2279 0.0751 0.3031 0.0639 0.0704 0.1342 0.0000 580.6584 580.6584 0.0809 0.0000 582.6809

Maximum 0.9570 2.5331 1.9090 6.0900e-003

0.2279 0.0751 0.3031 0.0639 0.0704 0.1342 0.0000 580.6584 580.6584 0.0809 0.0000 582.6809



Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total


Year tons/yr MT/yr

2020 0.9152 2.3275 1.9658 6.0900e-003

0.1135 0.0673 0.1808 0.0340 0.0655 0.0995 0.0000 580.6582 580.6582 0.0809 0.0000 582.6807

Maximum 0.9152 2.3275 1.9658 6.0900e-003

0.1135 0.0673 0.1808 0.0340 0.0655 0.0995 0.0000 580.6582 580.6582 0.0809 0.0000 582.6807



Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total


Percent Reduction

4.37 8.12 -2.98 0.00 50.21 10.42 40.35 46.74 6.92 25.86 0.00 0.00 0.00 0.00 0.00 0.00





Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total


Category tons/yr MT/yr

Area 0.6058 2.1800e-003

0.1889 1.0000e-005

1.0300e-003

1.0300e-003

1.0300e-003

1.0300e-003

0.0000 0.3084 0.3084 3.1000e-004

0.0000 0.3161

Energy 0.0124 0.1125 0.0903 6.8000e-004

8.6000e-003

8.6000e-003

8.6000e-003

8.6000e-003

0.0000 369.6575 369.6575 0.0270 7.3600e-003

372.5254

Mobile 0.2025 0.6496 2.3041 7.5300e-003

0.6724 8.2300e-003

0.6806 0.1807 7.7300e-003

0.1884 0.0000 687.8597 687.8597 0.0257 0.0000 688.5012

Waste 0.0000 0.0000 0.0000 0.0000 22.7391 0.0000 22.7391 1.3438 0.0000 56.3350

Water 0.0000 0.0000 0.0000 0.0000 1.6324 3.6624 5.2948 0.1680 4.0300e-003

10.6978

Total 0.8207 0.7642 2.5833 8.2200e-003

0.6724 0.0179 0.6902 0.1807 0.0174 0.1980 24.3715 1,061.4879

1,085.8593

1.5649 0.0114 1,128.3756


Quarter Start Date End Date Maximum Unmitigated ROG + NOX (tons/quarter) Maximum Mitigated ROG + NOX (tons/quarter)

6 3-4-2020 6-3-2020 1.0537 0.9714

7 6-4-2020 9-3-2020 1.3212 1.2364

8 9-4-2020 9-30-2020 0.3822 0.3540

Highest 1.3212 1.2364





Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Area 0.6058 2.1800e-003

0.1889 1.0000e-005

1.0300e-003

1.0300e-003

1.0300e-003

1.0300e-003

0.0000 0.3084 0.3084 3.1000e-004

0.0000 0.3161

Energy 0.0124 0.1125 0.0903 6.8000e-004

8.6000e-003

8.6000e-003

8.6000e-003

8.6000e-003

0.0000 369.6575 369.6575 0.0270 7.3600e-003

372.5254

Mobile 0.1528 0.3811 1.2659 3.0600e-003

0.2570 3.6400e-003

0.2606 0.0691 3.4100e-003

0.0725 0.0000 279.2588 279.2588 0.0123 0.0000 279.5669

Waste 0.0000 0.0000 0.0000 0.0000 22.7391 0.0000 22.7391 1.3438 0.0000 56.3350

Water 0.0000 0.0000 0.0000 0.0000 1.3059 2.9299 4.2358 0.1344 3.2300e-003

8.5583

Total 0.7710 0.4958 1.5451 3.7500e-003

0.2570 0.0133 0.2702 0.0691 0.0130 0.0821 24.0450 652.1545 676.1995 1.5179 0.0106 717.3017



Construction Phase


Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total


Percent Reduction

6.06 35.13 40.19 54.38 61.78 25.70 60.85 61.78 24.88 58.55 1.34 38.56 37.73 3.00 7.02 36.43



Phase Number





3 Grading Grading 5/1/2020 7/1/2020 5 44


5 Paving Paving 7/2/2020 11/18/2020 5 100


OffRoad Equipment




Acres of Paving: 0




















Trips and VMT


Worker Trip Number

Vendor Trip Number

Hauling Trip Number

Worker Trip Length

Vendor Trip Length

Hauling Trip Length














Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Fugitive Dust 8.2200e-003

0.0000 8.2200e-003

1.2400e-003

0.0000 1.2400e-003

0.0000 0.0000 0.0000 0.0000 0.0000 0.0000

Off-Road 8.6700e-003

0.0787 0.0762 1.2000e-004

4.6700e-003

4.6700e-003

4.4600e-003

4.4600e-003

0.0000 10.4075 10.4075 1.9700e-003

0.0000 10.4567

Total 8.6700e-003

0.0787 0.0762 1.2000e-004

8.2200e-003

4.6700e-003

0.0129 1.2400e-003

4.4600e-003

5.7000e-003

0.0000 10.4075 10.4075 1.9700e-003

0.0000 10.4567




Use Soil Stabilizer

Water Exposed Area


Clean Paved Roads





Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Hauling 3.4000e-004

0.0123 5.1100e-003

3.0000e-005

6.4000e-004

4.0000e-005

6.7000e-004

1.7000e-004

4.0000e-005

2.1000e-004

0.0000 3.1742 3.1742 4.0000e-004

0.0000 3.1841

Vendor 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 0.0000 0.0000 0.0000

Worker 6.0000e-004

4.4000e-004

4.4000e-003

2.0000e-005

2.0300e-003

1.0000e-005

2.0400e-003

5.4000e-004

1.0000e-005

5.5000e-004

0.0000 1.6625 1.6625 3.0000e-005

0.0000 1.6632

Total 9.4000e-004

0.0127 9.5100e-003

5.0000e-005

2.6700e-003

5.0000e-005

2.7100e-003

7.1000e-004

5.0000e-005

7.6000e-004

0.0000 4.8367 4.8367 4.3000e-004

0.0000 4.8473



Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total




0.0000 3.7000e-003

5.6000e-004

0.0000 5.6000e-004

0.0000 0.0000 0.0000 0.0000 0.0000 0.0000


0.0641 0.0777 1.2000e-004

4.0000e-003

4.0000e-003

4.0000e-003

4.0000e-003

0.0000 10.4075 10.4075 1.9700e-003

0.0000 10.4567

Total 5.5800e-003

0.0641 0.0777 1.2000e-004

3.7000e-003

4.0000e-003

7.7000e-003

5.6000e-004

4.0000e-003

4.5600e-003

0.0000 10.4075 10.4075 1.9700e-003

0.0000 10.4567






Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Hauling 3.4000e-004

0.0123 5.1100e-003

3.0000e-005

3.5000e-004

4.0000e-005

3.9000e-004

1.0000e-004

4.0000e-005

1.4000e-004

0.0000 3.1742 3.1742 4.0000e-004

0.0000 3.1841

Vendor 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 0.0000 0.0000 0.0000

Worker 6.0000e-004

4.4000e-004

4.4000e-003

2.0000e-005

9.8000e-004

1.0000e-005

9.9000e-004

2.8000e-004

1.0000e-005

2.9000e-004

0.0000 1.6625 1.6625 3.0000e-005

0.0000 1.6632

Total 9.4000e-004

0.0127 9.5100e-003

5.0000e-005

1.3300e-003

5.0000e-005

1.3800e-003

3.8000e-004

5.0000e-005

4.3000e-004

0.0000 4.8367 4.8367 4.3000e-004

0.0000 4.8473




Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total




0.0000 6.8400e-003

7.8000e-004

0.0000 7.8000e-004

0.0000 0.0000 0.0000 0.0000 0.0000 0.0000


0.0927 0.0450 1.1000e-004

3.6900e-003

3.6900e-003

3.3900e-003

3.3900e-003

0.0000 9.4151 9.4151 3.0500e-003

0.0000 9.4912

Total 7.5400e-003

0.0927 0.0450 1.1000e-004

6.8400e-003

3.6900e-003

0.0105 7.8000e-004

3.3900e-003

4.1700e-003

0.0000 9.4151 9.4151 3.0500e-003

0.0000 9.4912






Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Hauling 9.8300e-003

0.3584 0.1494 9.0000e-004

0.0186 1.1100e-003

0.0197 5.1000e-003

1.0700e-003

6.1700e-003

0.0000 92.7616 92.7616 0.0116 0.0000 93.0511

Vendor 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 0.0000 0.0000 0.0000

Worker 3.3000e-004

2.4000e-004

2.4200e-003

1.0000e-005

1.1200e-003

1.0000e-005

1.1200e-003

3.0000e-004

1.0000e-005

3.0000e-004

0.0000 0.9144 0.9144 2.0000e-005

0.0000 0.9148

Total 0.0102 0.3586 0.1518 9.1000e-004

0.0197 1.1200e-003

0.0208 5.4000e-003

1.0800e-003

6.4700e-003

0.0000 93.6760 93.6760 0.0116 0.0000 93.9658



Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total




0.0000 3.0800e-003

3.5000e-004

0.0000 3.5000e-004

0.0000 0.0000 0.0000 0.0000 0.0000 0.0000


0.0536 0.0644 1.1000e-004

2.6500e-003

2.6500e-003

2.6500e-003

2.6500e-003

0.0000 9.4151 9.4151 3.0500e-003

0.0000 9.4912

Total 2.6200e-003

0.0536 0.0644 1.1000e-004

3.0800e-003

2.6500e-003

5.7300e-003

3.5000e-004

2.6500e-003

3.0000e-003

0.0000 9.4151 9.4151 3.0500e-003

0.0000 9.4912






Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Hauling 9.8300e-003

0.3584 0.1494 9.0000e-004

0.0102 1.1100e-003

0.0113 3.0500e-003

1.0700e-003

4.1100e-003

0.0000 92.7616 92.7616 0.0116 0.0000 93.0511

Vendor 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 0.0000 0.0000 0.0000

Worker 3.3000e-004

2.4000e-004

2.4200e-003

1.0000e-005

5.4000e-004

1.0000e-005

5.4000e-004

1.6000e-004

1.0000e-005

1.6000e-004

0.0000 0.9144 0.9144 2.0000e-005

0.0000 0.9148

Total 0.0102 0.3586 0.1518 9.1000e-004

0.0107 1.1200e-003

0.0119 3.2100e-003

1.0800e-003

4.2700e-003

0.0000 93.6760 93.6760 0.0116 0.0000 93.9658


3.4 Grading - 2020


Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Fugitive Dust 0.0186 0.0000 0.0186 9.4100e-003

0.0000 9.4100e-003

0.0000 0.0000 0.0000 0.0000 0.0000 0.0000

Off-Road 0.0191 0.1732 0.1677 2.6000e-004

0.0103 0.0103 9.8000e-003

9.8000e-003

0.0000 22.8966 22.8966 4.3300e-003

0.0000 23.0048

Total 0.0191 0.1732 0.1677 2.6000e-004

0.0186 0.0103 0.0289 9.4100e-003

9.8000e-003

0.0192 0.0000 22.8966 22.8966 4.3300e-003

0.0000 23.0048




3.4 Grading - 2020


Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Hauling 0.0197 0.7168 0.2988 1.8100e-003

0.0372 2.2300e-003

0.0394 0.0102 2.1300e-003

0.0123 0.0000 185.5233 185.5233 0.0232 0.0000 186.1021

Vendor 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 0.0000 0.0000 0.0000

Worker 1.3100e-003

9.6000e-004

9.6800e-003

4.0000e-005

4.4700e-003

3.0000e-005

4.5000e-003

1.1900e-003

2.0000e-005

1.2100e-003

0.0000 3.6574 3.6574 7.0000e-005

0.0000 3.6591

Total 0.0210 0.7177 0.3085 1.8500e-003

0.0416 2.2600e-003

0.0439 0.0114 2.1500e-003

0.0136 0.0000 189.1807 189.1807 0.0232 0.0000 189.7612



Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total




0.0000 8.3600e-003

4.2300e-003

0.0000 4.2300e-003

0.0000 0.0000 0.0000 0.0000 0.0000 0.0000

Off-Road 0.0123 0.1409 0.1709 2.6000e-004

8.7900e-003

8.7900e-003

8.7900e-003

8.7900e-003

0.0000 22.8966 22.8966 4.3300e-003

0.0000 23.0048

Total 0.0123 0.1409 0.1709 2.6000e-004

8.3600e-003

8.7900e-003

0.0172 4.2300e-003

8.7900e-003

0.0130 0.0000 22.8966 22.8966 4.3300e-003

0.0000 23.0048




3.4 Grading - 2020


Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Hauling 0.0197 0.7168 0.2988 1.8100e-003

0.0204 2.2300e-003

0.0226 6.0900e-003

2.1300e-003

8.2200e-003

0.0000 185.5233 185.5233 0.0232 0.0000 186.1021

Vendor 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 0.0000 0.0000 0.0000

Worker 1.3100e-003

9.6000e-004

9.6800e-003

4.0000e-005

2.1500e-003

3.0000e-005

2.1800e-003

6.2000e-004

2.0000e-005

6.4000e-004

0.0000 3.6574 3.6574 7.0000e-005

0.0000 3.6591

Total 0.0210 0.7177 0.3085 1.8500e-003

0.0225 2.2600e-003

0.0248 6.7100e-003

2.1500e-003

8.8600e-003

0.0000 189.1807 189.1807 0.0232 0.0000 189.7612




Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Off-Road 0.0431 0.4426 0.3694 5.7000e-004

0.0261 0.0261 0.0240 0.0240 0.0000 50.0302 50.0302 0.0162 0.0000 50.4348

Total 0.0431 0.4426 0.3694 5.7000e-004

0.0261 0.0261 0.0240 0.0240 0.0000 50.0302 50.0302 0.0162 0.0000 50.4348






Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Hauling 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 0.0000 0.0000 0.0000

Vendor 6.2000e-003

0.1855 0.0739 4.3000e-004

0.0104 9.2000e-004

0.0114 3.0200e-003

8.8000e-004

3.9000e-003

0.0000 42.3990 42.3990 3.6800e-003

0.0000 42.4911

Worker 0.0247 0.0181 0.1827 7.6000e-004

0.0843 4.9000e-004

0.0848 0.0224 4.5000e-004

0.0229 0.0000 68.9925 68.9925 1.2500e-003

0.0000 69.0238

Total 0.0309 0.2037 0.2565 1.1900e-003

0.0948 1.4100e-003

0.0962 0.0255 1.3300e-003

0.0268 0.0000 111.3915 111.3915 4.9300e-003

0.0000 111.5149



Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Off-Road 0.0219 0.3393 0.3995 5.7000e-004

0.0220 0.0220 0.0214 0.0214 0.0000 50.0302 50.0302 0.0162 0.0000 50.4347

Total 0.0219 0.3393 0.3995 5.7000e-004

0.0220 0.0220 0.0214 0.0214 0.0000 50.0302 50.0302 0.0162 0.0000 50.4347






Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Hauling 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 0.0000 0.0000 0.0000

Vendor 6.2000e-003

0.1855 0.0739 4.3000e-004

6.0200e-003

9.2000e-004

6.9400e-003

1.9300e-003

8.8000e-004

2.8200e-003

0.0000 42.3990 42.3990 3.6800e-003

0.0000 42.4911

Worker 0.0247 0.0181 0.1827 7.6000e-004

0.0406 4.9000e-004

0.0411 0.0117 4.5000e-004

0.0122 0.0000 68.9925 68.9925 1.2500e-003

0.0000 69.0238

Total 0.0309 0.2037 0.2565 1.1900e-003

0.0466 1.4100e-003

0.0480 0.0136 1.3300e-003

0.0150 0.0000 111.3915 111.3915 4.9300e-003

0.0000 111.5149


3.6 Paving - 2020


Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Off-Road 0.0386 0.3613 0.3556 5.6000e-004

0.0198 0.0198 0.0183 0.0183 0.0000 46.9646 46.9646 0.0137 0.0000 47.3066

Paving 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000

Total 0.0386 0.3613 0.3556 5.6000e-004

0.0198 0.0198 0.0183 0.0183 0.0000 46.9646 46.9646 0.0137 0.0000 47.3066




3.6 Paving - 2020


Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Hauling 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 0.0000 0.0000 0.0000

Vendor 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000

Worker 5.3600e-003

3.9300e-003

0.0396 1.7000e-004

0.0183 1.1000e-004

0.0184 4.8700e-003

1.0000e-004

4.9600e-003

0.0000 14.9622 14.9622 2.7000e-004

0.0000 14.9690

Total 5.3600e-003

3.9300e-003

0.0396 1.7000e-004

0.0183 1.1000e-004

0.0184 4.8700e-003

1.0000e-004

4.9600e-003

0.0000 14.9622 14.9622 2.7000e-004

0.0000 14.9690



Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Off-Road 0.0327 0.3451 0.3584 5.6000e-004

0.0193 0.0193 0.0183 0.0183 0.0000 46.9646 46.9646 0.0137 0.0000 47.3066

Paving 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000

Total 0.0327 0.3451 0.3584 5.6000e-004

0.0193 0.0193 0.0183 0.0183 0.0000 46.9646 46.9646 0.0137 0.0000 47.3066




3.6 Paving - 2020


Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Hauling 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 0.0000 0.0000 0.0000

Vendor 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000

Worker 5.3600e-003

3.9300e-003

0.0396 1.7000e-004

8.8100e-003

1.1000e-004

8.9100e-003

2.5400e-003

1.0000e-004

2.6400e-003

0.0000 14.9622 14.9622 2.7000e-004

0.0000 14.9690

Total 5.3600e-003

3.9300e-003

0.0396 1.7000e-004

8.8100e-003

1.1000e-004

8.9100e-003

2.5400e-003

1.0000e-004

2.6400e-003

0.0000 14.9622 14.9622 2.7000e-004

0.0000 14.9690




Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Archit. Coating 0.7545 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000

Off-Road 0.0121 0.0842 0.0916 1.5000e-004

5.5500e-003

5.5500e-003

5.5500e-003

5.5500e-003

0.0000 12.7663 12.7663 9.9000e-004

0.0000 12.7910

Total 0.7666 0.0842 0.0916 1.5000e-004

5.5500e-003

5.5500e-003

5.5500e-003

5.5500e-003

0.0000 12.7663 12.7663 9.9000e-004

0.0000 12.7910






Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Hauling 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 0.0000 0.0000 0.0000

Vendor 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000

Worker 5.0600e-003

3.7100e-003

0.0374 1.6000e-004

0.0173 1.0000e-004

0.0174 4.5900e-003

9.0000e-005

4.6900e-003

0.0000 14.1310 14.1310 2.6000e-004

0.0000 14.1374

Total 5.0600e-003

3.7100e-003

0.0374 1.6000e-004

0.0173 1.0000e-004

0.0174 4.5900e-003

9.0000e-005

4.6900e-003

0.0000 14.1310 14.1310 2.6000e-004

0.0000 14.1374



Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Archit. Coating 0.7545 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000

Off-Road 0.0121 0.0842 0.0916 1.5000e-004

5.5500e-003

5.5500e-003

5.5500e-003

5.5500e-003

0.0000 12.7663 12.7663 9.9000e-004

0.0000 12.7910

Total 0.7666 0.0842 0.0916 1.5000e-004

5.5500e-003

5.5500e-003

5.5500e-003

5.5500e-003

0.0000 12.7663 12.7663 9.9000e-004

0.0000 12.7910






Increase Density

Increase Diversity





Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Hauling 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 0.0000 0.0000 0.0000

Vendor 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000

Worker 5.0600e-003

3.7100e-003

0.0374 1.6000e-004

8.3200e-003

1.0000e-004

8.4200e-003

2.4000e-003

9.0000e-005

2.4900e-003

0.0000 14.1310 14.1310 2.6000e-004

0.0000 14.1374

Total 5.0600e-003

3.7100e-003

0.0374 1.6000e-004

8.3200e-003

1.0000e-004

8.4200e-003

2.4000e-003

9.0000e-005

2.4900e-003

0.0000 14.1310 14.1310 2.6000e-004

0.0000 14.1374





Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Mitigated 0.1528 0.3811 1.2659 3.0600e-003

0.2570 3.6400e-003

0.2606 0.0691 3.4100e-003

0.0725 0.0000 279.2588 279.2588 0.0123 0.0000 279.5669

Unmitigated 0.2025 0.6496 2.3041 7.5300e-003

0.6724 8.2300e-003

0.6806 0.1807 7.7300e-003

0.1884 0.0000 687.8597 687.8597 0.0257 0.0000 688.5012








Total 961.66 336.90 184.49 1,813,835 693,199






4.4 Fleet Mix



5.0 Energy Detail


Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Electricity Mitigated

0.0000 0.0000 0.0000 0.0000 0.0000 246.5161 246.5161 0.0247 5.1000e-003

248.6523

Electricity Unmitigated

0.0000 0.0000 0.0000 0.0000 0.0000 246.5161 246.5161 0.0247 5.1000e-003

248.6523


0.0124 0.1125 0.0903 6.8000e-004

8.6000e-003

8.6000e-003

8.6000e-003

8.6000e-003

0.0000 123.1414 123.1414 2.3600e-003

2.2600e-003

123.8732


0.0124 0.1125 0.0903 6.8000e-004

8.6000e-003

8.6000e-003

8.6000e-003

8.6000e-003

0.0000 123.1414 123.1414 2.3600e-003

2.2600e-003

123.8732










NaturalGas Use


Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total


Land Use kBTU/yr tons/yr MT/yr

Apartments Mid Rise

218261 1.1800e-003

0.0101 4.2800e-003

6.0000e-005

8.1000e-004

8.1000e-004

8.1000e-004

8.1000e-004

0.0000 11.6472 11.6472 2.2000e-004

2.1000e-004

11.7164


0 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 0.0000


2.08932e+006

0.0113 0.1024 0.0860 6.1000e-004

7.7800e-003

7.7800e-003

7.7800e-003

7.7800e-003

0.0000 111.4942 111.4942 2.1400e-003

2.0400e-003

112.1567

Total 0.0125 0.1125 0.0903 6.7000e-004

8.5900e-003

8.5900e-003

8.5900e-003

8.5900e-003

0.0000 123.1414 123.1414 2.3600e-003

2.2500e-003

123.8732

Unmitigated

NaturalGas Use


Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Apartments Mid Rise

218261 1.1800e-003

0.0101 4.2800e-003

6.0000e-005

8.1000e-004

8.1000e-004

8.1000e-004

8.1000e-004

0.0000 11.6472 11.6472 2.2000e-004

2.1000e-004

11.7164


0 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 0.0000


2.08932e+006

0.0113 0.1024 0.0860 6.1000e-004

7.7800e-003

7.7800e-003

7.7800e-003

7.7800e-003

0.0000 111.4942 111.4942 2.1400e-003

2.0400e-003

112.1567

Total 0.0125 0.1125 0.0903 6.7000e-004

8.5900e-003

8.5900e-003

8.5900e-003

8.5900e-003

0.0000 123.1414 123.1414 2.3600e-003

2.2500e-003

123.8732

Mitigated



6.0 Area Detail

5.3 Energy by Land Use - Electricity

Electricity Use

Total CO2 CH4 N2O CO2e

Land Use kWh/yr MT/yr

Apartments Mid Rise

105550 13.8842 1.3900e-003

2.9000e-004

14.0045


419576 55.1918 5.5200e-003

1.1400e-003

55.6700


1.34893e+006

177.4401 0.0177 3.6700e-003

178.9777

Total 246.5161 0.0247 5.1000e-003

248.6523

Unmitigated

Electricity Use



Apartments Mid Rise

105550 13.8842 1.3900e-003

2.9000e-004

14.0045


419576 55.1918 5.5200e-003

1.1400e-003

55.6700


1.34893e+006

177.4401 0.0177 3.6700e-003

178.9777

Total 246.5161 0.0247 5.1000e-003

248.6523

Mitigated




6.0 Area Detail


Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Mitigated 0.6058 2.1800e-003

0.1889 1.0000e-005

1.0300e-003

1.0300e-003

1.0300e-003

1.0300e-003

0.0000 0.3084 0.3084 3.1000e-004

0.0000 0.3161

Unmitigated 0.6058 2.1800e-003

0.1889 1.0000e-005

1.0300e-003

1.0300e-003

1.0300e-003

1.0300e-003

0.0000 0.3084 0.3084 3.1000e-004

0.0000 0.3161





Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total


SubCategory tons/yr MT/yr


0.0755 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000

Consumer Products

0.5244 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000

Hearth 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 0.0000

Landscaping 5.9200e-003

2.1800e-003

0.1889 1.0000e-005

1.0300e-003

1.0300e-003

1.0300e-003

1.0300e-003

0.0000 0.3084 0.3084 3.1000e-004

0.0000 0.3161

Total 0.6058 2.1800e-003

0.1889 1.0000e-005

1.0300e-003

1.0300e-003

1.0300e-003

1.0300e-003

0.0000 0.3084 0.3084 3.1000e-004

0.0000 0.3161

Unmitigated









7.0 Water Detail



Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total




0.0755 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000

Consumer Products

0.5244 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000

Hearth 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 0.0000


2.1800e-003

0.1889 1.0000e-005

1.0300e-003

1.0300e-003

1.0300e-003

1.0300e-003

0.0000 0.3084 0.3084 3.1000e-004

0.0000 0.3161

Total 0.6058 2.1800e-003

0.1889 1.0000e-005

1.0300e-003

1.0300e-003

1.0300e-003

1.0300e-003

0.0000 0.3084 0.3084 3.1000e-004

0.0000 0.3161

Mitigated




Category MT/yr

Mitigated 4.2358 0.1344 3.2300e-003

8.5583

Unmitigated 5.2948 0.1680 4.0300e-003

10.6978

7.2 Water by Land Use

Indoor/Outdoor Use


Land Use Mgal MT/yr

Apartments Mid Rise

0.437359 / 0

0.4501 0.0143 3.4000e-004

0.9093


0 / 0 0.0000 0.0000 0.0000 0.0000


4.70805 / 0

4.8447 0.1538 3.6900e-003

9.7885

Total 5.2948 0.1680 4.0300e-003

10.6978

Unmitigated





Indoor/Outdoor Use


Land Use Mgal MT/yr

Apartments Mid Rise

0.349887 / 0

0.3600 0.0114 2.7000e-004

0.7275


0 / 0 0.0000 0.0000 0.0000 0.0000


3.76644 / 0

3.8758 0.1230 2.9500e-003

7.8308

Total 4.2358 0.1344 3.2200e-003

8.5583

Mitigated

8.0 Waste Detail




MT/yr

Mitigated 22.7391 1.3438 0.0000 56.3350

Unmitigated 22.7391 1.3438 0.0000 56.3350

Category/Year

8.2 Waste by Land Use

Waste Disposed


Land Use tons MT/yr

Apartments Mid Rise

11.5 2.3344 0.1380 0.0000 5.7834


0 0.0000 0.0000 0.0000 0.0000


100.52 20.4047 1.2059 0.0000 50.5517

Total 22.7391 1.3438 0.0000 56.3350

Unmitigated




Waste Disposed


Land Use tons MT/yr

Apartments Mid Rise

11.5 2.3344 0.1380 0.0000 5.7834


0 0.0000 0.0000 0.0000 0.0000


100.52 20.4047 1.2059 0.0000 50.5517

Total 22.7391 1.3438 0.0000 56.3350

Mitigated






Boilers






11.0 Vegetation



Project Characteristics - CO2 updated per PG&E 2020 CO2 factor.

Land Use - Per the project description, the total project site is 0.88 acres.

Construction Phase - This model is being run for the baseline-no construction.

Off-road Equipment - Baseline- No construction is being done.

Vehicle Trips - Per the provided traffic report, the site generates 470 trips per day.

Energy Use - CalEEMod error- CO2 for Project Characteristics found from PG&E 2020 report.

1.1 Land Usage


Unrefrigerated Warehouse-Rail 3.75 1000sqft 0.18 3,750.00 0

Parking Lot 20.00 Space 0.30 8,000.00 0

Fast Food Restaurant with Drive Thru 3.42 1000sqft 0.16 3,420.00 0

Automobile Care Center 5.34 1000sqft 0.24 5,340.00 0


Urbanization

Climate Zone

Urban

5









3rd & Claremont- Existing BaselineSan Mateo County, Summer


3rd & Claremont- Existing Baseline - San Mateo County, Summer



tblConstructionPhase PhaseEndDate 5/23/2019 5/16/2019

tblEnergyUse LightingElect 3.70 2.99




tblEnergyUse T24E 1.59 1.21



tblEnergyUse T24NG 20.06 17.85







tblOffRoadEquipment UsageHours 6.00 0.00















Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total


Year lb/day lb/day

2019 0.0000 0.0000 0.0000 0.0000 0.0000 1.0000e-004

0.0000 0.0000 9.0000e-005

0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000

Maximum 0.0000 0.0000 0.0000 0.0000 0.0000 1.0000e-004

0.0000 0.0000 9.0000e-005

0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000



Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total


Year lb/day lb/day

2019 0.0000 0.0000 0.0000 0.0000 0.0000 1.0000e-004

0.0000 0.0000 9.0000e-005

0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000

Maximum 0.0000 0.0000 0.0000 0.0000 0.0000 1.0000e-004

0.0000 0.0000 9.0000e-005

0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000






Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total


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 0.00 0.00 0.00





Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Area 0.3075 3.0000e-005

3.3400e-003

0.0000 1.0000e-005

1.0000e-005

1.0000e-005

1.0000e-005

7.1100e-003

7.1100e-003

2.0000e-005

7.5900e-003

Energy 0.0210 0.1912 0.1606 1.1500e-003

0.0145 0.0145 0.0145 0.0145 229.3840 229.3840 4.4000e-003

4.2100e-003

230.7471

Mobile 0.5966 1.3013 4.3464 0.0120 1.0092 0.0134 1.0225 0.2702 0.0125 0.2828 1,204.4937

1,204.4937

0.0485 1,205.7064

Total 0.9251 1.4925 4.5103 0.0131 1.0092 0.0279 1.0371 0.2702 0.0271 0.2973 1,433.8848

1,433.8848

0.0529 4.2100e-003

1,436.4611



Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Area 0.3075 3.0000e-005

3.3400e-003

0.0000 1.0000e-005

1.0000e-005

1.0000e-005

1.0000e-005

7.1100e-003

7.1100e-003

2.0000e-005

7.5900e-003

Energy 0.0210 0.1912 0.1606 1.1500e-003

0.0145 0.0145 0.0145 0.0145 229.3840 229.3840 4.4000e-003

4.2100e-003

230.7471

Mobile 0.5966 1.3013 4.3464 0.0120 1.0092 0.0134 1.0225 0.2702 0.0125 0.2828 1,204.4937

1,204.4937

0.0485 1,205.7064

Total 0.9251 1.4925 4.5103 0.0131 1.0092 0.0279 1.0371 0.2702 0.0271 0.2973 1,433.8848

1,433.8848

0.0529 4.2100e-003

1,436.4611






Construction Phase

Phase Number




OffRoad Equipment



Trips and VMT


Worker Trip Number

Vendor Trip Number

Hauling Trip Number

Worker Trip Length

Vendor Trip Length

Hauling Trip Length






Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total


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 0.00 0.00 0.00

Residential Indoor: 0; Residential Outdoor: 0; Non-Residential Indoor: 18,765; Non-Residential Outdoor: 6,255; Striped Parking Area: 480 (Architectural Coating – sqft)



Acres of Paving: 0.3





Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Archit. Coating 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 0.0000 0.0000 0.0000

Off-Road 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 0.0000 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 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000



Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Hauling 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 0.0000 0.0000 0.0000

Vendor 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000

Worker 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 0.0000 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 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000





Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Mitigated 0.5966 1.3013 4.3464 0.0120 1.0092 0.0134 1.0225 0.2702 0.0125 0.2828 1,204.4937

1,204.4937

0.0485 1,205.7064

Unmitigated 0.5966 1.3013 4.3464 0.0120 1.0092 0.0134 1.0225 0.2702 0.0125 0.2828 1,204.4937

1,204.4937

0.0485 1,205.7064






Automobile Care Center 100.07 100.07 100.07 99,690 99,690

Fast Food Restaurant with Drive Thru 355.00 355.00 355.00 331,682 331,682

Parking Lot 0.00 0.00 0.00

Unrefrigerated Warehouse-Rail 15.00 15.00 15.00 43,793 43,793

Total 470.07 470.07 470.07 475,164 475,164





Automobile Care Center 9.50 7.30 7.30 33.00 48.00 19.00 21 51 28

Fast Food Restaurant with Drive Thru

9.50 7.30 7.30 2.20 78.80 19.00 29 21 50

Parking Lot 9.50 7.30 7.30 0.00 0.00 0.00 0 0 0

Unrefrigerated Warehouse-Rail 9.50 7.30 7.30 59.00 0.00 41.00 92 5 3

5.0 Energy Detail


4.4 Fleet Mix


Automobile Care Center 0.490452 0.049742 0.253638 0.136789 0.017926 0.006526 0.021436 0.006323 0.003943 0.003278 0.008771 0.000435 0.000741


0.490452 0.049742 0.253638 0.136789 0.017926 0.006526 0.021436 0.006323 0.003943 0.003278 0.008771 0.000435 0.000741

Parking Lot 0.490452 0.049742 0.253638 0.136789 0.017926 0.006526 0.021436 0.006323 0.003943 0.003278 0.008771 0.000435 0.000741

Unrefrigerated Warehouse-Rail 0.490452 0.049742 0.253638 0.136789 0.017926 0.006526 0.021436 0.006323 0.003943 0.003278 0.008771 0.000435 0.000741

Historical Energy Use: Y




Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total




0.0210 0.1912 0.1606 1.1500e-003

0.0145 0.0145 0.0145 0.0145 229.3840 229.3840 4.4000e-003

4.2100e-003

230.7471


0.0210 0.1912 0.1606 1.1500e-003

0.0145 0.0145 0.0145 0.0145 229.3840 229.3840 4.4000e-003

4.2100e-003

230.7471


NaturalGas Use


Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Automobile Care Center

362.096 3.9000e-003

0.0355 0.0298 2.1000e-004

2.7000e-003

2.7000e-003

2.7000e-003

2.7000e-003

42.5995 42.5995 8.2000e-004

7.8000e-004

42.8527

Fast Food Restaurant with

Drive Thru

1573.39 0.0170 0.1543 0.1296 9.3000e-004

0.0117 0.0117 0.0117 0.0117 185.1044 185.1044 3.5500e-003

3.3900e-003

186.2044

Parking Lot 0 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

Unrefrigerated Warehouse-Rail

14.2808 1.5000e-004

1.4000e-003

1.1800e-003

1.0000e-005

1.1000e-004

1.1000e-004

1.1000e-004

1.1000e-004

1.6801 1.6801 3.0000e-005

3.0000e-005

1.6901

Total 0.0210 0.1912 0.1606 1.1500e-003

0.0145 0.0145 0.0145 0.0145 229.3840 229.3840 4.4000e-003

4.2000e-003

230.7471

Unmitigated




6.0 Area Detail


NaturalGas Use


Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total




0.362096 3.9000e-003

0.0355 0.0298 2.1000e-004

2.7000e-003

2.7000e-003

2.7000e-003

2.7000e-003

42.5995 42.5995 8.2000e-004

7.8000e-004

42.8527


Drive Thru

1.57339 0.0170 0.1543 0.1296 9.3000e-004

0.0117 0.0117 0.0117 0.0117 185.1044 185.1044 3.5500e-003

3.3900e-003

186.2044

Parking Lot 0 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


0.0142808 1.5000e-004

1.4000e-003

1.1800e-003

1.0000e-005

1.1000e-004

1.1000e-004

1.1000e-004

1.1000e-004

1.6801 1.6801 3.0000e-005

3.0000e-005

1.6901

Total 0.0210 0.1912 0.1606 1.1500e-003

0.0145 0.0145 0.0145 0.0145 229.3840 229.3840 4.4000e-003

4.2000e-003

230.7471

Mitigated




Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Mitigated 0.3075 3.0000e-005

3.3400e-003

0.0000 1.0000e-005

1.0000e-005

1.0000e-005

1.0000e-005

7.1100e-003

7.1100e-003

2.0000e-005

7.5900e-003


3.3400e-003

0.0000 1.0000e-005

1.0000e-005

1.0000e-005

1.0000e-005

7.1100e-003

7.1100e-003

2.0000e-005

7.5900e-003



Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total




0.0367 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000

Consumer Products

0.2706 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000


3.0000e-005

3.3400e-003

0.0000 1.0000e-005

1.0000e-005

1.0000e-005

1.0000e-005

7.1100e-003

7.1100e-003

2.0000e-005

7.5900e-003

Total 0.3075 3.0000e-005

3.3400e-003

0.0000 1.0000e-005

1.0000e-005

1.0000e-005

1.0000e-005

7.1100e-003

7.1100e-003

2.0000e-005

7.5900e-003

Unmitigated





7.0 Water Detail

8.0 Waste Detail



Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total




0.0367 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000

Consumer Products

0.2706 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000


3.0000e-005

3.3400e-003

0.0000 1.0000e-005

1.0000e-005

1.0000e-005

1.0000e-005

7.1100e-003

7.1100e-003

2.0000e-005

7.5900e-003

Total 0.3075 3.0000e-005

3.3400e-003

0.0000 1.0000e-005

1.0000e-005

1.0000e-005

1.0000e-005

7.1100e-003

7.1100e-003

2.0000e-005

7.5900e-003

Mitigated







11.0 Vegetation


Boilers












1.1 Land Usage







Urbanization

Climate Zone

Urban

5









3rd & Claremont- Existing BaselineSan Mateo County, Winter


3rd & Claremont- Existing Baseline - San Mateo County, Winter




Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total


Year lb/day lb/day

2019 0.0000 0.0000 0.0000 0.0000 0.0000 1.0000e-004

0.0000 0.0000 9.0000e-005

0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000

Maximum 0.0000 0.0000 0.0000 0.0000 0.0000 1.0000e-004

0.0000 0.0000 9.0000e-005

0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000



Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total


Year lb/day lb/day

2019 0.0000 0.0000 0.0000 0.0000 0.0000 1.0000e-004

0.0000 0.0000 9.0000e-005

0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000

Maximum 0.0000 0.0000 0.0000 0.0000 0.0000 1.0000e-004

0.0000 0.0000 9.0000e-005

0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000






Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total


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 0.00 0.00 0.00





Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Area 0.3075 3.0000e-005

3.3400e-003

0.0000 1.0000e-005

1.0000e-005

1.0000e-005

1.0000e-005

7.1100e-003

7.1100e-003

2.0000e-005

7.5900e-003

Energy 0.0210 0.1912 0.1606 1.1500e-003

0.0145 0.0145 0.0145 0.0145 229.3840 229.3840 4.4000e-003

4.2100e-003

230.7471

Mobile 0.5350 1.3870 4.8648 0.0114 1.0092 0.0135 1.0226 0.2702 0.0126 0.2828 1,144.5390

1,144.5390

0.0511 1,145.8175

Total 0.8636 1.5782 5.0288 0.0125 1.0092 0.0280 1.0372 0.2702 0.0272 0.2974 1,373.9301

1,373.9301

0.0556 4.2100e-003

1,376.5722



Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Area 0.3075 3.0000e-005

3.3400e-003

0.0000 1.0000e-005

1.0000e-005

1.0000e-005

1.0000e-005

7.1100e-003

7.1100e-003

2.0000e-005

7.5900e-003

Energy 0.0210 0.1912 0.1606 1.1500e-003

0.0145 0.0145 0.0145 0.0145 229.3840 229.3840 4.4000e-003

4.2100e-003

230.7471

Mobile 0.5350 1.3870 4.8648 0.0114 1.0092 0.0135 1.0226 0.2702 0.0126 0.2828 1,144.5390

1,144.5390

0.0511 1,145.8175

Total 0.8636 1.5782 5.0288 0.0125 1.0092 0.0280 1.0372 0.2702 0.0272 0.2974 1,373.9301

1,373.9301

0.0556 4.2100e-003

1,376.5722






Construction Phase

Phase Number




OffRoad Equipment



Trips and VMT


Worker Trip Number

Vendor Trip Number

Hauling Trip Number

Worker Trip Length

Vendor Trip Length

Hauling Trip Length






Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total


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 0.00 0.00 0.00









Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Archit. Coating 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 0.0000 0.0000 0.0000

Off-Road 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 0.0000 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 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000



Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Hauling 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 0.0000 0.0000 0.0000

Vendor 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000

Worker 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 0.0000 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 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000





Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Mitigated 0.5350 1.3870 4.8648 0.0114 1.0092 0.0135 1.0226 0.2702 0.0126 0.2828 1,144.5390

1,144.5390

0.0511 1,145.8175

Unmitigated 0.5350 1.3870 4.8648 0.0114 1.0092 0.0135 1.0226 0.2702 0.0126 0.2828 1,144.5390

1,144.5390

0.0511 1,145.8175








Parking Lot 0.00 0.00 0.00


Total 470.07 470.07 470.07 475,164 475,164







9.50 7.30 7.30 2.20 78.80 19.00 29 21 50

Parking Lot 9.50 7.30 7.30 0.00 0.00 0.00 0 0 0


5.0 Energy Detail


4.4 Fleet Mix




0.490452 0.049742 0.253638 0.136789 0.017926 0.006526 0.021436 0.006323 0.003943 0.003278 0.008771 0.000435 0.000741

Parking Lot 0.490452 0.049742 0.253638 0.136789 0.017926 0.006526 0.021436 0.006323 0.003943 0.003278 0.008771 0.000435 0.000741






Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total




0.0210 0.1912 0.1606 1.1500e-003

0.0145 0.0145 0.0145 0.0145 229.3840 229.3840 4.4000e-003

4.2100e-003

230.7471


0.0210 0.1912 0.1606 1.1500e-003

0.0145 0.0145 0.0145 0.0145 229.3840 229.3840 4.4000e-003

4.2100e-003

230.7471


NaturalGas Use


Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total




362.096 3.9000e-003

0.0355 0.0298 2.1000e-004

2.7000e-003

2.7000e-003

2.7000e-003

2.7000e-003

42.5995 42.5995 8.2000e-004

7.8000e-004

42.8527


Drive Thru

1573.39 0.0170 0.1543 0.1296 9.3000e-004

0.0117 0.0117 0.0117 0.0117 185.1044 185.1044 3.5500e-003

3.3900e-003

186.2044

Parking Lot 0 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


14.2808 1.5000e-004

1.4000e-003

1.1800e-003

1.0000e-005

1.1000e-004

1.1000e-004

1.1000e-004

1.1000e-004

1.6801 1.6801 3.0000e-005

3.0000e-005

1.6901

Total 0.0210 0.1912 0.1606 1.1500e-003

0.0145 0.0145 0.0145 0.0145 229.3840 229.3840 4.4000e-003

4.2000e-003

230.7471

Unmitigated




6.0 Area Detail


NaturalGas Use


Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total




0.362096 3.9000e-003

0.0355 0.0298 2.1000e-004

2.7000e-003

2.7000e-003

2.7000e-003

2.7000e-003

42.5995 42.5995 8.2000e-004

7.8000e-004

42.8527


Drive Thru

1.57339 0.0170 0.1543 0.1296 9.3000e-004

0.0117 0.0117 0.0117 0.0117 185.1044 185.1044 3.5500e-003

3.3900e-003

186.2044

Parking Lot 0 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


0.0142808 1.5000e-004

1.4000e-003

1.1800e-003

1.0000e-005

1.1000e-004

1.1000e-004

1.1000e-004

1.1000e-004

1.6801 1.6801 3.0000e-005

3.0000e-005

1.6901

Total 0.0210 0.1912 0.1606 1.1500e-003

0.0145 0.0145 0.0145 0.0145 229.3840 229.3840 4.4000e-003

4.2000e-003

230.7471

Mitigated




Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Mitigated 0.3075 3.0000e-005

3.3400e-003

0.0000 1.0000e-005

1.0000e-005

1.0000e-005

1.0000e-005

7.1100e-003

7.1100e-003

2.0000e-005

7.5900e-003


3.3400e-003

0.0000 1.0000e-005

1.0000e-005

1.0000e-005

1.0000e-005

7.1100e-003

7.1100e-003

2.0000e-005

7.5900e-003



Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total




0.0367 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000

Consumer Products

0.2706 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000


3.0000e-005

3.3400e-003

0.0000 1.0000e-005

1.0000e-005

1.0000e-005

1.0000e-005

7.1100e-003

7.1100e-003

2.0000e-005

7.5900e-003

Total 0.3075 3.0000e-005

3.3400e-003

0.0000 1.0000e-005

1.0000e-005

1.0000e-005

1.0000e-005

7.1100e-003

7.1100e-003

2.0000e-005

7.5900e-003

Unmitigated





7.0 Water Detail

8.0 Waste Detail



Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total




0.0367 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000

Consumer Products

0.2706 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000


3.0000e-005

3.3400e-003

0.0000 1.0000e-005

1.0000e-005

1.0000e-005

1.0000e-005

7.1100e-003

7.1100e-003

2.0000e-005

7.5900e-003

Total 0.3075 3.0000e-005

3.3400e-003

0.0000 1.0000e-005

1.0000e-005

1.0000e-005

1.0000e-005

7.1100e-003

7.1100e-003

2.0000e-005

7.5900e-003

Mitigated







11.0 Vegetation


Boilers












1.1 Land Usage







Urbanization

Climate Zone

Urban

5









3rd & Claremont- Existing BaselineSan Mateo County, Annual


3rd & Claremont- Existing Baseline - San Mateo County, Annual


2.1 Overall Construction


Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total


Year tons/yr MT/yr

2019 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 0.0000 0.0000 0.0000

Maximum 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 0.0000 0.0000 0.0000



Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total


Year tons/yr MT/yr

2019 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 0.0000 0.0000 0.0000

Maximum 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 0.0000 0.0000 0.0000







Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Area 0.0561 0.0000 3.0000e-004

0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 5.8000e-004

5.8000e-004

0.0000 0.0000 6.2000e-004

Energy 3.8400e-003

0.0349 0.0293 2.1000e-004

2.6500e-003

2.6500e-003

2.6500e-003

2.6500e-003

0.0000 58.5627 58.5627 2.7900e-003

1.1200e-003

58.9667

Mobile 0.0964 0.2466 0.8253 2.0800e-003

0.1761 2.4400e-003

0.1786 0.0473 2.2900e-003

0.0496 0.0000 189.6177 189.6177 8.1700e-003

0.0000 189.8220

Waste 0.0000 0.0000 0.0000 0.0000 12.8514 0.0000 12.8514 0.7595 0.0000 31.8387

Water 0.0000 0.0000 0.0000 0.0000 0.7638 1.8860 2.6498 0.0786 1.8900e-003

5.1796

Total 0.1564 0.2815 0.8549 2.2900e-003

0.1761 5.0900e-003

0.1812 0.0473 4.9400e-003

0.0523 13.6152 250.0669 263.6821 0.8491 3.0100e-003

285.8076



Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total


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 0.00 0.00 0.00

Quarter Start Date End Date Maximum Unmitigated ROG + NOX (tons/quarter) Maximum Mitigated ROG + NOX (tons/quarter)

Highest





Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Area 0.0561 0.0000 3.0000e-004

0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 5.8000e-004

5.8000e-004

0.0000 0.0000 6.2000e-004

Energy 3.8400e-003

0.0349 0.0293 2.1000e-004

2.6500e-003

2.6500e-003

2.6500e-003

2.6500e-003

0.0000 58.5627 58.5627 2.7900e-003

1.1200e-003

58.9667

Mobile 0.0964 0.2466 0.8253 2.0800e-003

0.1761 2.4400e-003

0.1786 0.0473 2.2900e-003

0.0496 0.0000 189.6177 189.6177 8.1700e-003

0.0000 189.8220

Waste 0.0000 0.0000 0.0000 0.0000 12.8514 0.0000 12.8514 0.7595 0.0000 31.8387

Water 0.0000 0.0000 0.0000 0.0000 0.7638 1.8860 2.6498 0.0786 1.8900e-003

5.1796

Total 0.1564 0.2815 0.8549 2.2900e-003

0.1761 5.0900e-003

0.1812 0.0473 4.9400e-003

0.0523 13.6152 250.0669 263.6821 0.8491 3.0100e-003

285.8076



Construction Phase

Phase Number





Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total


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 0.00 0.00 0.00





OffRoad Equipment



Trips and VMT


Worker Trip Number

Vendor Trip Number

Hauling Trip Number

Worker Trip Length

Vendor Trip Length

Hauling Trip Length












Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Archit. Coating 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 0.0000 0.0000 0.0000

Off-Road 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 0.0000 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 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000



Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Hauling 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 0.0000 0.0000 0.0000

Vendor 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000

Worker 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 0.0000 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 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000





Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Mitigated 0.0964 0.2466 0.8253 2.0800e-003

0.1761 2.4400e-003

0.1786 0.0473 2.2900e-003

0.0496 0.0000 189.6177 189.6177 8.1700e-003

0.0000 189.8220

Unmitigated 0.0964 0.2466 0.8253 2.0800e-003

0.1761 2.4400e-003

0.1786 0.0473 2.2900e-003

0.0496 0.0000 189.6177 189.6177 8.1700e-003

0.0000 189.8220








Parking Lot 0.00 0.00 0.00


Total 470.07 470.07 470.07 475,164 475,164







9.50 7.30 7.30 2.20 78.80 19.00 29 21 50

Parking Lot 9.50 7.30 7.30 0.00 0.00 0.00 0 0 0


5.0 Energy Detail


4.4 Fleet Mix




0.490452 0.049742 0.253638 0.136789 0.017926 0.006526 0.021436 0.006323 0.003943 0.003278 0.008771 0.000435 0.000741

Parking Lot 0.490452 0.049742 0.253638 0.136789 0.017926 0.006526 0.021436 0.006323 0.003943 0.003278 0.008771 0.000435 0.000741






Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Electricity Mitigated

0.0000 0.0000 0.0000 0.0000 0.0000 20.5856 20.5856 2.0600e-003

4.3000e-004

20.7640

Electricity Unmitigated

0.0000 0.0000 0.0000 0.0000 0.0000 20.5856 20.5856 2.0600e-003

4.3000e-004

20.7640


3.8400e-003

0.0349 0.0293 2.1000e-004

2.6500e-003

2.6500e-003

2.6500e-003

2.6500e-003

0.0000 37.9771 37.9771 7.3000e-004

7.0000e-004

38.2028


3.8400e-003

0.0349 0.0293 2.1000e-004

2.6500e-003

2.6500e-003

2.6500e-003

2.6500e-003

0.0000 37.9771 37.9771 7.3000e-004

7.0000e-004

38.2028


NaturalGas Use


Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total




132165 7.1000e-004

6.4800e-003

5.4400e-003

4.0000e-005

4.9000e-004

4.9000e-004

4.9000e-004

4.9000e-004

0.0000 7.0528 7.0528 1.4000e-004

1.3000e-004

7.0947


Drive Thru

574286 3.1000e-003

0.0282 0.0237 1.7000e-004

2.1400e-003

2.1400e-003

2.1400e-003

2.1400e-003

0.0000 30.6461 30.6461 5.9000e-004

5.6000e-004

30.8282

Parking Lot 0 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 0.0000


5212.5 3.0000e-005

2.6000e-004

2.1000e-004

0.0000 2.0000e-005

2.0000e-005

2.0000e-005

2.0000e-005

0.0000 0.2782 0.2782 1.0000e-005

1.0000e-005

0.2798

Total 3.8400e-003

0.0349 0.0293 2.1000e-004

2.6500e-003

2.6500e-003

2.6500e-003

2.6500e-003

0.0000 37.9771 37.9771 7.4000e-004

7.0000e-004

38.2028

Unmitigated




NaturalGas Use


Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total




132165 7.1000e-004

6.4800e-003

5.4400e-003

4.0000e-005

4.9000e-004

4.9000e-004

4.9000e-004

4.9000e-004

0.0000 7.0528 7.0528 1.4000e-004

1.3000e-004

7.0947


Drive Thru

574286 3.1000e-003

0.0282 0.0237 1.7000e-004

2.1400e-003

2.1400e-003

2.1400e-003

2.1400e-003

0.0000 30.6461 30.6461 5.9000e-004

5.6000e-004

30.8282

Parking Lot 0 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 0.0000


5212.5 3.0000e-005

2.6000e-004

2.1000e-004

0.0000 2.0000e-005

2.0000e-005

2.0000e-005

2.0000e-005

0.0000 0.2782 0.2782 1.0000e-005

1.0000e-005

0.2798

Total 3.8400e-003

0.0349 0.0293 2.1000e-004

2.6500e-003

2.6500e-003

2.6500e-003

2.6500e-003

0.0000 37.9771 37.9771 7.4000e-004

7.0000e-004

38.2028

Mitigated




Electricity Use




40370.4 5.3104 5.3000e-004

1.1000e-004

5.3564


Drive Thru

99111.6 13.0373 1.3000e-003

2.7000e-004

13.1503

Parking Lot 2800 0.3683 4.0000e-005

1.0000e-005

0.3715


14212.5 1.8695 1.9000e-004

4.0000e-005

1.8857

Total 20.5856 2.0600e-003

4.3000e-004

20.7640

Unmitigated




6.0 Area Detail


Electricity Use




40370.4 5.3104 5.3000e-004

1.1000e-004

5.3564


Drive Thru

99111.6 13.0373 1.3000e-003

2.7000e-004

13.1503

Parking Lot 2800 0.3683 4.0000e-005

1.0000e-005

0.3715


14212.5 1.8695 1.9000e-004

4.0000e-005

1.8857

Total 20.5856 2.0600e-003

4.3000e-004

20.7640

Mitigated




Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total



Mitigated 0.0561 0.0000 3.0000e-004

0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 5.8000e-004

5.8000e-004

0.0000 0.0000 6.2000e-004

Unmitigated 0.0561 0.0000 3.0000e-004

0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 5.8000e-004

5.8000e-004

0.0000 0.0000 6.2000e-004



Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total




6.6900e-003

0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000

Consumer Products

0.0494 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000


0.0000 3.0000e-004

0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 5.8000e-004

5.8000e-004

0.0000 0.0000 6.2000e-004

Total 0.0561 0.0000 3.0000e-004

0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 5.8000e-004

5.8000e-004

0.0000 0.0000 6.2000e-004

Unmitigated




7.0 Water Detail



Exhaust PM10

PM10 Total

Fugitive PM2.5

Exhaust PM2.5

PM2.5 Total




6.6900e-003

0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000

Consumer Products

0.0494 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000


0.0000 3.0000e-004

0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 5.8000e-004

5.8000e-004

0.0000 0.0000 6.2000e-004

Total 0.0561 0.0000 3.0000e-004

0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 5.8000e-004

5.8000e-004

0.0000 0.0000 6.2000e-004

Mitigated




Category MT/yr

Mitigated 2.6498 0.0786 1.8900e-003

5.1796

Unmitigated 2.6498 0.0786 1.8900e-003

5.1796


Indoor/Outdoor Use


Land Use Mgal MT/yr


0.502393 / 0.307918

0.6587 0.0164 4.0000e-004

1.1875


Drive Thru

1.03809 / 0.0662608

1.0987 0.0339 8.1000e-004

2.1891

Parking Lot 0 / 0 0.0000 0.0000 0.0000 0.0000


0.867188 / 0

0.8924 0.0283 6.8000e-004

1.8030

Total 2.6498 0.0786 1.8900e-003

5.1796

Unmitigated





Indoor/Outdoor Use


Land Use Mgal MT/yr


0.502393 / 0.307918

0.6587 0.0164 4.0000e-004

1.1875


Drive Thru

1.03809 / 0.0662608

1.0987 0.0339 8.1000e-004

2.1891

Parking Lot 0 / 0 0.0000 0.0000 0.0000 0.0000


0.867188 / 0

0.8924 0.0283 6.8000e-004

1.8030

Total 2.6498 0.0786 1.8900e-003

5.1796

Mitigated

8.0 Waste Detail




MT/yr

Mitigated 12.8514 0.7595 0.0000 31.8387

Unmitigated 12.8514 0.7595 0.0000 31.8387

Category/Year


Waste Disposed


Land Use tons MT/yr


20.4 4.1410 0.2447 0.0000 10.2592


Drive Thru

39.39 7.9958 0.4725 0.0000 19.8093

Parking Lot 0 0.0000 0.0000 0.0000 0.0000


3.52 0.7145 0.0422 0.0000 1.7702

Total 12.8514 0.7595 0.0000 31.8387

Unmitigated




Waste Disposed


Land Use tons MT/yr


20.4 4.1410 0.2447 0.0000 10.2592


Drive Thru

39.39 7.9958 0.4725 0.0000 19.8093

Parking Lot 0 0.0000 0.0000 0.0000 0.0000


3.52 0.7145 0.0422 0.0000 1.7702

Total 12.8514 0.7595 0.0000 31.8387

Mitigated






Boilers





11.0 Vegetation




ATTACHMENT B

Construction-Related Fine Particulate Matter Dispersion and Concentration

406 E. 3rd AvenueFine Particulate Matter Emission Rates

Construction

406 E. 3rd Project - On-Site ConstructionEmissions Calculations

EVS

Fine PMOn-Site lbs/day g/day g/sec

0.3 1.36E+02 1.57E-03 3 5.25E-04

On-Sitelbs/day g/day g/sec

#sources

EVS

0.2 9.07E+01 1.05E-03 3 3.50E-04

Sources:PM2.5 Emission Factors are derived from CalEEMod v. 2016.3.2

On-Site Project Construction Activities

Mitigated Maximum Daily PM2.5 Exhaust & Dust

# sources


Unmitigated Maximum Daily PM2.5 Exhaust & Dust

UNMITIGATED

C:\Lakes\AERMOD View\406 E 3rd Avenue\406 E 3rd Avenue.iscAERMOD View - Lakes Environmental Software

SCALE:

0 0.1 km

1:3,190

PROJECT NO.:

DATE:

12/6/2018

MODELER:

COMPANY NAME:

COMMENTS:PROJECT TITLE:

C:\Lakes\AERMOD View\406 E 3rd Avenue\406 E 3rd Avenue.isc

SOURCES:

3

RECEPTORS:

906

OUTPUT TYPE:

Concentration

MAX:

1.12 ug/m^3

Source Pathway - Source InputsAERMOD

Volume SourcesInitial

VerticalDim. [m]

InitialLateral

Dim. [m]

BuildingHeight

[m]

Lengthof Side

[m]

SourceType

SourceID

X Coordinate[m]

Y Coordinate[m]

BaseElevation(Optional)

EmissionRate[g/s]

ReleaseHeight

[m]

VOLUME 559993.53 4157904.01 7.39 2.50 9.14 2.13 1.00VOL1 0.00053

VOLUME 559981.31 4157871.06 8.64 2.50 9.14 2.13 1.00VOL2 0.00053

VOLUME 559951.69 4157876.49 8.38 2.50 9.14 2.13 1.00VOL3 0.00053

12/6/2018SO1 - 1 AERMOD View by Lakes Environmental Software

Project File: C:\Lakes\AERMOD View\406 E 3rd Avenue\406 E 3rd Avenue.isc

Receptor PathwayAERMOD

Receptor Networks

Note: Terrain Elavations and Flagpole Heights for Network Grids are in Page RE2 - 1 (If applicable) Generated Discrete Receptors for Multi-Tier (Risk) Grid and Receptor Locations for Fenceline Grid are in Page RE3 - 1 (If applicable)

Uniform Cartesian Grid

ReceptorNetwork ID

Grid OriginX Coordinate [m]

Grid OriginY Coordinate [m]

No. of X-AxisReceptors

No. of Y-AxisReceptors

Spacing forX-Axis [m]

Spacing forY-Axis [m]

UCART1 559548.36 4157415.17 30.00 30.0030 30

Discrete Receptors

Plant Boundary Receptors

Cartesian Plant Boundary

Primary

X-Coordinate [m] Y-Coordinate [m] Terrain ElevationsFlagpole Heights [m]

(Optional)RecordNumber

Group Name(Optional)

559925.01 4157893.08 8.311 FENCEPRI

559968.56 4157844.09 8.422 FENCEPRI

560024.02 4157895.12 7.193 FENCEPRI

559995.44 4157927.78 7.374 FENCEPRI

559963.80 4157900.23 8.245 FENCEPRI

559949.85 4157915.54 7.946 FENCEPRI

Receptor Groups

Group DescriptionGroup IDRecordNumber

FENCEPRI Cartesian plant boundary Primary Receptors1

12/6/2018RE1 - 1 AERMOD View by Lakes Environmental Software


Meteorology PathwayAERMOD

Met Input DataSurface Met Data

Profile Met Data

K:\Projects\2018\2018-158 3rd & Claremont Mixed\Data files\AERMOD\724940.SFC

Default AERMET format

Filename:

Format Type:

Filename:

Format Type:K:\Projects\2018\2018-158 3rd & Claremont Mixed\Data files\AERMOD\724940.PFL

Potential Temperature Profile

Base Elevation above MSL (for Primary Met Tower): 120.00 [m]

Wind Direction

Rotation Adjustment [deg]:

Meteorological Station Data

Upper Air

Station No. Year Station Name

Surface

Stations X Coordinate [m] Y Coordinate [m]

2009 SAN FRANCISCO/INT'L ARPT

2009 OAKLAND/WSO AP


Wind Speed

Wind Speeds are Vector Mean (Not Scalar Means)

Data Period

Start Date: End Date:1/1/2009 1/2/2014Start Hour: End Hour: 241

Data Period to Process

10.8

8.23

5.14

3.09

1.54

No Upper Bound

Wind Speed [m/s]Stability CategoryWind Speed [m/s]

F

E

D

C

B

A

Stability Category

Wind Speed Categories

ME - 1 12/6/2018AERMOD View by Lakes Environmental Software


MITIGATED

C:\Lakes\AERMOD View\406 E 3rd Avenue\406 E 3rd Avenue.iscAERMOD View - Lakes Environmental Software

SCALE:

0 0.1 km

1:3,791

PROJECT NO.:

DATE:

12/6/2018

MODELER:

COMPANY NAME:


C:\Lakes\AERMOD View\406 E 3rd Avenue\406 E 3rd Avenue.isc

SOURCES:

3

RECEPTORS:

906

OUTPUT TYPE:

Concentration

MAX:

0.747 ug/m^3


Volume SourcesInitial

VerticalDim. [m]

InitialLateral

Dim. [m]

BuildingHeight

[m]

Lengthof Side

[m]

SourceType

SourceID

X Coordinate[m]

Y Coordinate[m]

BaseElevation(Optional)

EmissionRate[g/s]

ReleaseHeight

[m]

VOLUME 559993.53 4157904.01 7.39 2.50 9.14 2.13 1.00VOL1 0.00035

VOLUME 559981.31 4157871.06 8.64 2.50 9.14 2.13 1.00VOL2 0.00035

VOLUME 559951.69 4157876.49 8.38 2.50 9.14 2.13 1.00VOL3 0.00035




Receptor Networks



ReceptorNetwork ID







UCART1 559548.36 4157415.17 30.00 30.0030 30

Discrete Receptors



Primary




559925.01 4157893.08 8.311 FENCEPRI

559968.56 4157844.09 8.422 FENCEPRI

560024.02 4157895.12 7.193 FENCEPRI

559995.44 4157927.78 7.374 FENCEPRI

559963.80 4157900.23 8.245 FENCEPRI

559949.85 4157915.54 7.946 FENCEPRI

Receptor Groups







Profile Met Data



Filename:

Format Type:

Filename:




Wind Direction



Upper Air


Surface



2009 OAKLAND/WSO AP


Wind Speed


Data Period



10.8

8.23

5.14

3.09

1.54

No Upper Bound


F

E

D

C

B

A

Stability Category




ATTACHMENT C

Construction-Related Health Risk Assessment - Diesel Particulate Matter

406 East 3rd Avenue Office & Residential Mixed-Use Development Project

Construction Health Risk Assessment

San Mateo, California

Prepared For: David J. Powers & Associates, Inc.

1871 The Alameda, Suite 200 San José, CA 95126

February 2019

Construction Health Risk Assessment – 406 East 3rd Avenue Office and Residential Mixed-Use Development Project

ECORP Consulting Inc. Construction Health Risk Assessment i February 2019

2018-158

ECORP Consulting, Inc. has assisted public and private land owners with environmental regulation compliance since 1987. We offer full service capability, from initial baseline

environmental studies through environmental planning review, permitting negotiation, liaison to obtain legal agreements, mitigation design, construction monitoring, and compliance reporting.


ECORP Consulting Inc. Construction Health Risk Assessment ii February 2019

2018-158

CONTENTS

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

1.1 Project Description and Location.................................................................................................................. 1

2.0 CONSTRUCTION HEALTH RISK ASSESSMENT .......................................................................................................... 2

2.1 Environmental Setting ....................................................................................................................................... 2

2.2 Regulatory Framework ...................................................................................................................................... 4

2.3 Health Risk and Hazard Assessment ........................................................................................................... 6

Thresholds of Significance ............................................................................................................................... 6

Methodology ........................................................................................................................................................ 6

3.0 REFERENCES ........................................................................................................................................................................ 12

LIST OF TABLES

Table 1. Nearest Sensitive Receptors.............................................................................. Error! Bookmark not defined.

Table 2. Maximum Operational Health Risk at the Project Vicinity Residential Neighborhoods ...................... 11

Table 3. Maximum Operational Health Risk at Barry Elementary School (as measured at the northern property line of the school) ................................................................................................ Error! Bookmark not defined.

APPENDICES

Appendix A – Health Risk Calculations and AERMOD Outputs


ECORP Consulting Inc. Construction Health Risk Assessment 1 February 2019

2018-158

1.0 INTRODUCTION

This report evaluates the potential health risks associated with the construction of the 406 East 3rd Avenue Office and Residential Mixed-Use Development Project (Project), in San Mateo, California. The purpose of this Health Risk Assessment is to evaluate potential health risks associated with the toxic air contaminant (TAC), Diesel Particulate Matter (DPM), resulting from the Project construction activity. This Health Risk Assessment was prepared in accordance with the requirements of the Office of Environmental Health Hazard Assessment (OEHHA) to determine if health risks are likely to occur from the proposed Project. Technical data is included as see Appendix A.

1.1 Project Location

The proposed Project site is located on ±0.88-acre site at 406 East 3rd Avenue in San Mateo, California. The site is bounded by S. Railroad Avenue to the southwest with a Caltrain railway line and commercial uses beyond, and East 3rd Avenue to the north with commercial uses beyond including an automotive care facility, a restaurant, and retail shops. Directly adjacent to the northeast corner of the irregular-shaped Project site exists retails uses and restaurants. S. Claremont Avenue traverses the site to the east with retails and restaurants beyond. To the south of the Project is the site of a recently approved four-story mixed-use building accommodating both office space and residential units, similar to the proposed Project.

The Project site currently accommodates a fast-food restaurant with drive-through and surface parking, accessed from either East 3rd Avenue or S. Railroad Avenue; as well as auto repair and industrial warehouse-related uses accessed from S Claremont Avenue. The site is surrounded by urban development and is within walking distance to the San Mateo Caltrain station and several bus-transit stops.

1.2 Project Description

The Project proposes to demolish the existing fast-food restaurant, surface parking, auto repair facility and industrial warehouse-related buildings on the site and construct a new, four-story 119,220-square foot mixed-use building comprising of office space spanning 108,087 square feet of building space in the first three floors and up to 25 residential dwelling units on the fourth floor. The building is proposed to include 1,326 square feet of landscaped areas and would be served by an underground parking garage containing 179 automobile parking spaces throughout two subterranean levels.

Construction of the Project would commence with demolition of the existing fast-food restaurant, auto repair facility, industrial warehouse, and asphalted surface parking lot. It is estimated that this on-site demolition would result in the hauling of 768 tons of demolished material off-site. Once demolition is completed, excavation would begin on the 2-level underground parking garage. Based on the Project Plans it is estimated that this excavation would result in the need to haul 53,302 cubic yards of soil from the Project site.



2018-158

2.0 CONSTRUCTION HEALTH RISK ASSESSMENT

2.1 Environmental Setting

Toxic Air Contaminants

Toxic air contaminants (TACs) are airborne substances that are capable of causing short-term (acute) and/or long-term (chronic or carcinogenic, i.e., cancer causing) adverse human health effects (i.e., injury or illness). TACs include both organic and inorganic chemical substances. They may be emitted from a variety of common sources including gasoline stations, automobiles, dry cleaners, industrial operations, and painting operations. The current California list of TACs includes approximately 200 compounds, including particulate emissions from diesel-fueled engines.

Hazardous Air Pollutants (HAP) is a term used by the Federal Clean Air Act (FCAA) that includes a variety of pollutants generated or emitted by industrial production activities. Identified as TACs under the California Clean Air Act (CCAA), ten have been singled out through ambient air quality data as being the most substantial health risk in California. Direct exposure to these pollutants has been shown to cause cancer, birth defects, damage to the brain and nervous system, and respiratory disorders. CARB provides emission inventories for only the larger air basins.

TACs do not have ambient air quality standards because no safe levels of TACs can be determined. Instead, TAC impacts are evaluated by calculating the health risks associated with a given exposure. The requirements of the Air Toxic “Hot Spots” Information and Assessment Act (Assembly Bill [AB] 2588) apply to facilities that use, produce, or emit toxic chemicals. Facilities subject to the toxic emission inventory requirements of the act must prepare and submit toxic emission inventory plans and reports, and periodically update those reports.

Toxic contaminants often result from fugitive emissions during fuel storage and transfer activities, and from leaking valves and pipes. For example, the electronics industry, including semiconductor manufacturing, uses highly toxic chlorinated solvents in semiconductor production processes. Sources of air toxics go beyond industry, however. Automobile exhaust also contains toxic air pollutants.

Diesel Particulate Matter

DPM is emitted from both mobile and stationary sources. In California, on-road diesel-fueled engines contribute approximately 24 percent of the statewide total, with an additional 71 percent attributed to other mobile sources such as construction and mining equipment, agricultural equipment, and transport refrigeration units. Stationary sources contribute about 5 percent of total DPM. It should be noted that the California Air Resources Board (CARB) has developed several plans and programs to reduce diesel emissions such as the Diesel Risk Reduction Plan (DRRP), the Statewide Portable Equipment Registration Program (PERP), and the Diesel Off-Road Reporting System (DOORS). The PERP and DOORS programs allow owners or operators of portable engines and certain other types of equipment can register their units in order to operate their equipment throughout California without having to obtain individual permits from local air districts.



2018-158

Diesel exhaust and many individual substances contained in it (including arsenic, benzene, formaldehyde, and nickel) have the potential to contribute to mutations in cells that can lead to cancer. Long-term exposure to diesel exhaust particles poses the highest cancer risk of any TAC evaluated by OEHHA. CARB estimates that about 70 percent of the cancer risk that the average Californian faces from breathing toxic air pollutants stems from diesel exhaust particles.

In its comprehensive assessment of diesel exhaust, OEHHA analyzed more than 30 studies of people who worked around diesel equipment, including truck drivers, railroad workers, and equipment operators. The studies showed these workers were more likely to develop lung cancer than workers who were not exposed to diesel emissions. These studies provide strong evidence that long-term exposure to diesel exhaust increases the risk of lung cancer. Using information from OEHHA’s assessment, CARB estimates that diesel particle levels measured in California’s air in 2000 could cause 540 “excess” cancers in a population of 1 million people over a 70-year lifetime. Other researchers and scientific organizations, including the National Institute for Occupational Safety and Health, have calculated cancer risks from diesel exhaust similar to those developed by OEHHA and CARB.

Exposure to diesel exhaust can have immediate health effects. Diesel exhaust can irritate the eyes, nose, throat, and lungs, and it can cause coughs, headaches, lightheadedness, and nausea. In studies with human volunteers, diesel exhaust particles made people with allergies more susceptible to the materials to which they are allergic, such as dust and pollen. Exposure to diesel exhaust also causes inflammation in the lungs, which may aggravate chronic respiratory symptoms and increase the frequency or intensity of asthma attacks.

Diesel engines are a major source of fine particulate pollution. The elderly and people with emphysema, asthma, and chronic heart and lung disease are especially sensitive to fine-particle pollution. Numerous studies have linked elevated particle levels in the air to increased hospital admissions, emergency room visits, asthma attacks, and premature deaths among those suffering from respiratory problems. Because children’s lungs and respiratory systems are still developing, they are also more susceptible than healthy adults to fine particles. Exposure to fine particles is associated with increased frequency of childhood illnesses and can also reduce lung function in children. In California, diesel exhaust particles have been identified as a carcinogen.

Construction-related activities would result in temporary, short-term Project-generated emissions of DPM from the exhaust of off-road, heavy-duty diesel equipment for demolition, site preparation (e.g., excavation, grading), and other miscellaneous activities. For construction activity, DPM is the primary TAC of concern.

Sensitive Receptors

Sensitive populations are more susceptible to the effects of air pollution than is the general population. Sensitive populations (sensitive receptors) that are in proximity to localized sources of toxics are of particular concern. Land uses considered sensitive receptors include residences, schools, playgrounds, childcare centers, long-term health care facilities, rehabilitation centers, convalescent centers, and retirement homes. The nearest sensitive receptors to the Project construction site will be the residents of



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a recently approved four-story mixed-use building accommodating both office space and residential units directly adjacent to the southern property boundary.


Federal

Clean Air Act

The Federal Clean Air Act (FCAA) was amended in 1990 to address a large number of air pollutants that are known to cause or may reasonably be anticipated to cause adverse effects to human health or adverse environmental effects. 188 specific pollutants and chemical groups were initially identified as HAPs, and the list has been modified over time. The FCAA Amendments included new regulatory programs to control acid deposition and for the issuance of stationary source operating permits.

In 2001, the U.S. Environmental Protection Agency (EPA) issued its first Mobile Source Air Toxics Rule, which identified 21 mobile source air toxic (MSAT) compounds as being HAPs that required regulation. A subset of six of these MSAT compounds were identified as having the greatest influence on health and included benzene, 1,3-butadiene, formaldehyde, acrolein, acetaldehyde, and DPM. More recently, the EPA issued a second MSAT Rule in February 2007, which generally supported the findings in the first rule and provided additional recommendations of compounds having the greatest impact on health. The rule also identified several engine emission certification standards that must be implemented. Unlike the criteria pollutants, toxics do not have National Ambient Air Quality Standards (NAAQS) making evaluation of their impacts more subjective.

National Emissions Standards for Hazardous Air Pollutants (NESHAPs) were incorporated into a greatly expanded program for controlling toxic air pollutants. The provisions for attainment and maintenance of the NAAQS were substantially modified and expanded. Other revisions included provisions regarding stratospheric ozone protection, increased enforcement authority, and expanded research programs.

Section 112 of the FCAA Amendments governs the federal control program for HAPs. NESHAPs are issued to limit the release of specified HAPs from specific industrial sectors. These standards are technology-based, meaning that they represent the best available control technology an industrial sector could afford. The level of emissions controls required by NESHAPs are not based on health risk considerations because allowable releases and resulting concentrations have not been determined to be safe for the general public. The FCAA does not establish air quality standards for HAPs that define legally acceptable concentrations of these pollutants in ambient air.

State

California Air Resources Board

CARB’s statewide comprehensive air toxics program was established in 1983 with AB 1807 the Toxic Air Contaminant Identification and Control Act (Tanner Air Toxics Act of 1983). AB 1807 created California's program to reduce exposure to air toxics and sets forth a formal procedure for CARB to designate



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substances as TACs. Once a TAC is identified, CARB adopts an airborne toxics control measure (ATCM) for sources that emit designated TACs. If there is a safe threshold for a substance at which there is no toxic effect, the control measure must reduce exposure to below that threshold. If there is no safe threshold, the measure must incorporate toxics best available control technology (T-BACT) to minimize emissions.

CARB also administers the state’s mobile source emissions control program and oversees air quality programs established by state statute, such as AB 2588, the Air Toxics “Hot Spots” Information and Assessment Act of 1987. Under AB 2588, TAC emissions from individual facilities are quantified and prioritized by the air quality management district or air pollution control district. High priority facilities are required to perform a health risk assessment and, if specific thresholds are exceeded, required to communicate the results to the public in the form of notices and public meetings. In September 1992, the "Hot Spots" Act was amended by Senate Bill (SB) 1731 which required facilities that pose a significant health risk to the community to reduce their risk through a risk management plan.

Diesel Risk Reduction Plan

The identification of DPM as a TAC in 1998 led CARB to adopt the Risk Reduction Plan to Reduce Particulate Matter Emissions from Diesel-Fueled Engines and Vehicles (Risk Reduction Plan) in October 2000. The Risk Reduction Plan's goals include an 85 percent reduction in DPM by 2020 from the 2000 baseline (CARB 2000). The Risk Reduction Plan includes regulations to establish cleaner new diesel engines, cleaner in-use diesel engines (retrofits), and cleaner diesel fuel.

Heavy-Duty Vehicle Idling Emission Reduction Program

The purpose of the CARB Air Toxic Control Measure (ATCM) to Limit Diesel-Fueled Commercial Motor Vehicle Idling is to reduce public exposure to diesel particulate matter and criteria pollutants by limiting the idling of diesel-fueled commercial vehicles.1 The driver of any vehicle subject to this ATCM is prohibited from idling the vehicle’s primary diesel engine for greater than five minutes at any location and is prohibited from idling a diesel-fueled auxiliary power system (APS) for more than five minutes to power a heater, air conditioner, or any ancillary equipment on the vehicle if it has a sleeper berth and the truck is located within 100 feet of a restricted area (homes and schools).

CARB Final Regulation Order, Requirements to Reduce Idling Emissions from New and In-Use Trucks, beginning in 2008, would require that new 2008 and subsequent model-year heavy-duty diesel engines be equipped with an engine shutdown system that automatically shuts down the engine after 300 seconds of continuous idling operation once the vehicle is stopped, the transmission is set to “neutral” or “park”, and the parking brake is engaged.

1 The ATCM to Limit Diesel-Fueled Commercial Motor Vehicle Idling is codified in Title 13 of the California Code of Regulations, Chapter 10, Section 2485.



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2.3 Health Risk and Hazard Assessment


In order to determine whether or not a proposed project would cause a significant effect on the environment, the impact of the project must be determined by examining the types and levels of air toxics generated and the associated impacts on factors that affect air quality. The thresholds for air toxic emissions are as follows.

Cancer Risk: Emit carcinogenic or toxic contaminants that exceed the maximum individual cancer risk of 10 in one million.

Non-Cancer Risk: Emit toxic contaminants that exceed the maximum hazard quotient of 1 in one million.

Cancer risk is expressed in terms of expected incremental incidence per million population. An incidence rate of 10 persons per million as the maximum acceptable incremental cancer risk due to DPM exposure has been established by the Bay Area Air Quality Management District. This threshold serves to determine whether or not a given project has a potentially significant development-specific and cumulative impact. The 10 in one million standard is a very health-protective significance threshold. A risk level of 10 in one million implies a likelihood that up to 10 persons, out of one million equally exposed people would contract cancer if exposed continuously (24 hours per day) to the levels of toxic air contaminants over a specified duration of time. This risk would be an excess cancer that is in addition to any cancer risk borne by a person not exposed to these air toxics. To put this risk in perspective, the risk of dying from accidental drowning is 1,000 in a million which is 100 times more than the threshold of 10 in one million. The 10 in one million is consistent with the mandates of the Air Toxics "Hot Spots" Information and Assessment Act.

Non-carcinogenic risk parameters for use in health risk assessments (HRAs) has also been established. Noncarcinogenic risks are quantified by calculating a "hazard index," expressed as the ratio between the ambient pollutant concentration and its toxicity or Reference Exposure Level (REL). An REL is a concentration at or below which health effects are not likely to occur. A hazard index less of than one (1.0) means that adverse health effects are not expected. Within this analysis, non-carcinogenic exposures of less than 1.0 are considered less than significant.

Methodology

This HRA evaluates potential health risks associated with the emission of DPM resulting from the construction activities necessary to build the Project. As previously described, CARB estimates that about 70 percent of the cancer risk that the average Californian faces from breathing toxic air pollutants stems from diesel exhaust particles.

The air dispersion modeling for the HRA was performed using the U.S. EPA AERMOD dispersion model. AERMOD is a steady-state, multiple-source, Gaussian dispersion model designed for use with emission



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sources situated in terrain where ground elevations can exceed the stack heights of the emission sources (not a factor in this case). AERMOD requires hourly meteorological data consisting of wind vector, wind speed, temperature, stability class, and mixing height. Surface and upper air meteorological data provided by CARB for the San Francisco International Airport was selected as being the most representative meteorology based on proximity.

Emissions sources in the model include 6 volume sources to represent construction equipment maneuvering around the construction site. Additionally, emissions sources in the model include a line source (comprised of 14 volume sources) representing the material haul truck route between the Project site and Highway 101 (see Appendix A). The maximum daily exhaust emissions for all diesel equipment was used to produce an emission rate in terms of grams per second per square meter. Emissions from construction equipment were assigned a release height of 2.5 meters and heavy trucks were assigned a release height of 3.65 meters in order to provide a conservative analysis (i.e., using a higher release heights would result in a smaller impact by allowing pollutants to disperse before they affect a receptor).

The model was run to obtain the peak 24-hour and annual average concentration in micrograms per cubic meter [μg/m3] at nearby sensitive receptors. Air dispersion modeling is required to estimate (a) annual average concentrations to calculate the Maximum Individual Cancer Risk (MICR), the maximum chronic HI, the zones of impact, and excess cancer burden and (b) peak hourly concentrations to calculate the health impact from substances with acute non-cancer health effects. To achieve these goals, the receptor grid should extend to cover the zone of impact.

Note that the concentration estimates developed using this methodology is considered conservative, and is not a specific prediction of the actual concentrations that would occur as a result of the Project any one point in time. Actual 24-hour and annual average and concentrations are dependent on many variables, particularly the number and type of equipment working at specific distances during time periods of adverse meteorology.

A health risk computation was performed to determine the risk of developing an excess cancer risk as a result of the full span of construction. The chronic and carcinogenic health risk calculations are based on the standardized equations contained in the U.S. EPA Human Health Evaluation Manual (1991) and the OEHHA Guidance Manual (2015).

Based on the OEHHA methodology, the residential inhalation cancer risk from the annual average DPM concentrations are calculated by multiplying the daily inhalation or oral dose, by a cancer potency factor, the age sensitivity factor (ASF), the frequency of time spent at home or at work, and the exposure duration divided by averaging time, to yield the excess cancer risk. These factors are discussed in more detail below. It is important to note that exposure duration is based on continual construction activities over the course of construction. Cancer risk must be separately calculated for specified age groups, because of age differences in sensitivity to carcinogens and age differences in intake rates (per kg body weight). Separate risk estimates for these age groups provide a health-protective estimate of cancer risk by accounting for greater susceptibility in early life, including both age-related sensitivity and amount of exposure.



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Exposure through inhalation (Dose-air) is a function the breathing rate, the exposure frequency, and the concentration of a substance in the air. For receptor exposure, the breathing rates are determined for specific age groups, so Dose-air is calculated for each of these age groups, 3rd trimester, 0<2, 2<9, 2<16, 16<30 and 16-70 years. To estimate cancer risk, the dose was estimated by applying the following formula to each ground-level concentration:

Dose-air = (Cair * {BR/BW} * A * EF * 10-6)

Where:

Dose-air = dose through inhalation (mg/kg/day)

Cair = air concentration (μg/m3) from air dispersion model

{BR/BW} = daily breathing rate normalized to body weight (L/kg body weight – day) (225 L\kg BW-day for 3rd Trimester, 658 L/kg BW-day for 0<2 years, 535 L/kg BW-day for 2<9 years, 452 L/kg BW-day for 2<16 years, 210 L/kg BW-day for 16<30 years, and 185 L/kg BW-day 16<70 years)

A = Inhalation absorption factor (unitless [1])

EF = exposure frequency (unitless), days/365 days (0.51 [186 days per year2])

10-6 = conversion factor (micrograms to milligrams, liters to cubic meters)

OEHHA developed ASFs to take into account the increased sensitivity to carcinogens during early-in-life exposure. In the absence of chemical-specific data, OEHHA recommends a default ASF of 10 for the third trimester to age 2 years, an ASF of 3 for ages 2 through 15 years to account for potential increased sensitivity to carcinogens during childhood and an ASF of 1 for ages 16 through 70 years.

Fraction of time at home (FAH) during the day is used to adjust exposure duration and cancer risk from a specific facility’s emissions, based on the assumption that exposure to the facility’s emissions are not occurring away from home. OEHHA recommends the following FAH values: from the third trimester to age <2 years, 85 percent of time is spent at home; from age 2 through <16 years, 72 percent of time is spent at home; from age 16 years and greater, 73 percent of time is spent at home.

To estimate the cancer risk, the dose is multiplied by the cancer potency factor, the ASF, the exposure duration divided by averaging time, and the frequency of time spent at home (for residents only):

Riskinh-res = (Doseair * CPH * ASF * ED/AT * FAH)

2 186 days is the projected length of construction determined by the CalEEMod emissions model.



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Where:

Riskinh-res = inhalation cancer risk (potential chances per million)

Doseair = daily dose through inhalation (mg/kg-day)

CPF = inhalation cancer potency factor (mg/kg-day-1)

ASF = age sensitivity factor for a specified age group (unitless)

ED = exposure duration (in years) for a specified age group (0.25 years for 3rd trimester, 2 years for 0<2, 7 years for 2<9, 14 years for 2<16, 14 years for 16<30, 54 years for 16-70)

AT = averaging time of lifetime cancer risk (years)

FAH = fraction of time spent at home (unitless)

Chronic Non-Cancer Hazard

Non-cancer chronic impacts are calculated by dividing the annual average concentration by the Reference Exposure Level (REL) for that substance. The REL is defined as the concentration at which no adverse non-cancer health effects are anticipated. The following equation was used to determine the non-cancer risk:

Hazard Quotient = Ci/RELi

Where:

Ci = Concentration in the air of substance i (annual average concentration in μg/m3)

RELi = Chronic noncancer Reference Exposure Level for substance i (μg/m3)

Acute Non-Cancer Hazard

The potential for acute non-cancer hazards is evaluated by comparing the maximum short-term exposure level to an acute REL. RELs are designed to protect sensitive individuals within the population. The calculation of acute non-cancer impacts is similar to the procedure for chronic non-cancer impacts. The equation is as follows:

Acute HQ = Maximum Hourly Air Concentration (μg/m3) / Acute REL (μg/m3)



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Impact Analysis

PROJECT RISK AND HAZARD ASSESSMENT CARB identified DPM as a TAC in 1998. Mobile sources (including trucks, buses, automobiles, trains, ships, and farm equipment) are by far the largest source of diesel emissions. The exhaust from diesel engines includes hundreds of different gaseous and particulate components, many of which are toxic. Diesel exhaust is composed of two phases, either gas or particulate – both contribute to the risk. The gas phase is composed of many of the urban HAPs, such as acetaldehyde, acrolein, benzene, 1,3-butadiene, formaldehyde, and polycyclic aromatic hydrocarbons. The particulate phase has many different types that can be classified by size or composition. The sizes of diesel particulates of greatest health concern are fine and ultrafine particles. These particles may be composed of elemental carbon with adsorbed3 compounds such as organics, sulfates, nitrates, metals, and other trace elements. Diesel exhaust is emitted from a broad range of on- and off-road diesel engines. As the Project would require the use of off-road construction equipment and heavy-duty diesel haul trucks during construction, an analysis of DPM was performed using the EPA-approved AERMOD model. Non-Carcinogenic Hazards The significance thresholds for TAC exposure requires an evaluation of non-cancer risk stated in terms of a hazard index. Non-cancer chronic impacts are calculated by dividing the annual average concentration by the Reference Exposure Level (REL) for that substance. The REL is defined as the concentration at which no adverse non-cancer health effects are anticipated. The potential for acute non-cancer hazards is evaluated by comparing the maximum short-term exposure level to an acute REL. RELs are designed to protect sensitive individuals within the population. The calculation of acute non-cancer impacts is similar to the procedure for chronic non-cancer impacts. An acute or chronic hazard index of 1.0 is considered individually significant. The hazard index is calculated by dividing the acute or chronic exposure by the reference exposure level. The highest maximum chronic and acute hazard index at a sensitive receptor associated with DPM emissions from the Project would be 0.005 and 0.142, respectively. This concentration would occur at the property line of residence directly adjacent to the southern boundary of the Project site. Therefore, non-carcinogenic hazards are calculated to be within acceptable limits and a less than significant impact would occur.

3 This term is specifically used for gases.



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Carcinogenic Risk Construction equipment and haul truck DPM emissions were estimated using emission factors for exhaust fine particulate matter less than 2.5 microns in diameter (PM2.5)4 generated by the CARB-approved California Emissions Estimator Model (CalEEMod), version 2016.3.2. CalEEMod is a statewide land use emissions computer model designed to quantify potential criteria pollutant emissions associated with both construction and operations from a variety of land use projects. Based on the AERMOD outputs, the expected annual average DPM emission concentrations at the most exposed sensitive receptor resulting from Project construction would be 0.027 µg/m3 at the greatest. Cancer risk calculations for residences are based on constant exposure over the course of construction. The calculated carcinogenic risk at Project vicinity residences as a result of the Project is depicted in Table 1.

Table 1. Maximum Operational Health Risk in the Project Vicinity

Exposure Scenario Maximum Cancer Risk

(Risk per Million)

Significance Threshold

(Risk per Million)

Exceeds Significance Threshold?

Residential Building to the South, Directly Adjacent to Project

Construction 1.20 10 No

Source: ECORP Consulting 2019. Refer to Appendix A for Model Data Outputs.

Conclusion In conclusion, non-carcinogenic hazards resulting from the Project construction are calculated to be within acceptable limits. Additionally, potential cancer risk from Project construction would be below the 10 in one million threshold, which was developed based on the requirements of the Air Toxics "Hot Spots" Information and Assessment Act and serves to determine whether or not a given project has a potentially significant development-specific and cumulative impact. Therefore, impacts related to health risk from the Project would be less than significant.

4 PM2.5 is considered a surrogate for DPM because more than 90 percent of DPM is less than 1 microgram in diameter and therefore is a subset of particulate matter under 2.5 microns in diameter (i.e., PM2.5), according to CARB. Most PM2.5 derives from combustion, such as use of gasoline and diesel fuels by motor vehicles.



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3.0 REFERENCES

CARB (California Air Resources Board). 2000. Risk Reduction Plan to Reduce Particulate Matter Emissions from Diesel-Fueled Engines and Vehicles.

OEHHA (California Environmental Protection Agency’s Office of Environmental Health Hazard Assessment). 2003. The Air Toxics Hot Spots Program Guidance Manual for Preparation of Health Risk Assessments.

———. 2015. Guidance Manual for Preparation of Health Risk Assessments.

U.S. EPA (United States Environmental Protection Agency). 1991. Human Health Evaluation Manual.

APPENDIX A

Health Risk Calculations and AERMOD Outputs

406 E. 3rd AvenueDPM Emission Rates

Construction

406 E. 3rd Project - On-Site ConstructionEmissions Calculations

EVS

DPMOn-Site lbs/day g/day g/sec

0.4 1.81E+02 2.10E-03 6 3.50E-04

On-Site lbs/day g/day g/sec#

sourcesEVS

0.04 1.81E+01 2.10E-04 14 1.50E-05

Sources:DPM Emission Factors are derived from CalEEMod v. 2016.3.2

Off-Site Project Haul Trucks

Maximum OFFSITE Daily DPM Emissions - MITIGATED

# sources


Maximum ON-SITE Daily DPM Emissions - MITIGATED

Cancer Risk Calcuations at Highest Pollutant Concentration

Risk Calculations

Annual Avg Concentration: 0.0270

Cancer Risk

3rd trimester 0<2 years 2<9 years 2<16 years 16<30 years 16<70 years

DOSEair = (Cair*(BR/BW)*A*EF*10-6) 3.09596E-06 9.05395E-06 7.36149E-06 6.21943E-06 2.88956E-06 2.5456E-06

Risk = DOSEair * CPF * ASF * ED/AT * FAH 1.03383E-07 9.07012E-07 1.87403E-07 1.58329E-07 2.486052E-08 2.1901E-08

Risk in one million

Cancer Risk: 70-year exposure 1.19E-06 1.19

30-year exposure 1.19E-06 1.19

9-year exposure 1.20E-06 1.20

Threshold: 10 in one million

DOSEair mg/kg-d Dose through inhalation

CPF 1.1 (mg/kg/day)-1Cancer Potency Factor for DPM

BR/BW BR/BW (3rd trimester) 225 Daily Breathing rate normalized to body weight

BR/BW (0 < 2 years) 658

BR/BW (2 < 9 years) 535

BR/BW (2 < 16 years) 452

BR/BW (16 < 30 years) 210

BR/BW (16 < 70 years) 185 10-6

1.00E-06 Micrograms to milligrams conversions, liters to cubic meters conversion

Cair 0.02698 ug/m3 Concentration in air (ug/m3), modeled annual average concentration

A 1 Inhalation absorption factor

EF 0.51 days/year Exposure frequency (days/year)

ED ED (3rd trimester) 0.25 years Exposure duration (years)

ED (0 < 2 years) 0.75

ED (2 < 9 years) 0.75

ED (2 < 16, 16 < 30 years) 0.75

ED (16 - 70 years) 0.75

AT 70 years Averaging time period over which exposure is averaged

ASF ASF (3rd trimester - 2 years) 10 Age Sensitivity Factor

ASF (2 - 16 years) 3

ASF (16 - 70 years) 1

FAH FAH (3rd trimester - 2 years) 0.85 Fraction of time spent at home (unitless)

FAH (2 - 16 years) 0.72

FAH (16 - 70 years) 0.73

Chronic Noncancer Hazard

Threshold: 1

Hazard Quotient = Ci/RELi

HQ = 5.40E-03

Ci 2.70E-02 Concentration (annual average)

RELi 5 Reference Exposure Level

Acute NonCancer Hazard

Threshold: 1

Acute HQ = Maximum Hourly Concentration/Acute REL

Acute HQ = 1.42E-01

Max Hourly 2.70E-02

Acute REL (Acrolein) 0.19

L/kg bodyweight-day

Results SummaryC:\Lakes\AERMOD View\406 E 3rd Avenue DPM\406 E 3rd Avenue DPM.isc

PM2.5 - Concentration - Source Group: ALL

AveragingPeriod Rank Peak

X(m)

Y(m)

ZELEV(m)

ZHILL(m)

Peak Date,Start Hour

ZFLAG(m)

Units

1-HR 1ST 0.21714 2/4/2012, 8559983.36 4157950.17 7.50 0.00 7.50ug/m^3

24-HR 1ST 0.08738 1/7/2009, 24559983.36 4157850.17 8.60 0.00 8.60ug/m^3

ANNUAL 0.02698 559983.36 4157950.17 7.50 0.00 7.50ug/m^3

AERMOD View by Lakes Environmental Software 2/8/2019

Project File: C:\Lakes\AERMOD View\406 E 3rd Avenue DPM\406 E 3rd Avenue DPM.isc

RS - 1 of 1

C:\Lakes\AERMOD View\406 E 3rd Avenue DPM\406 E 3rd Avenue DPM.iscAERMOD View - Lakes Environmental Software

SCALE:

0 0.2 km

1:6,515

PROJECT NO.:

DATE:

2/8/2019

MODELER:

COMPANY NAME:


C:\Lakes\AERMOD View\406 E 3rd Avenue DPM\406 E 3rd Avenue DPM.isc

SOURCES:

2

RECEPTORS:

106

OUTPUT TYPE:

Concentration

MAX:

2.7E-02 ug/m^3


Line Volume SourcesSource Type: LINE VOLUME

Source: SLINE1

Release Height[m]

Base Elevation[m]

Y Coordinate for points[m]

X Coordinate for Points[m]

Length of Side[m]

Emission Rate[g/ s]

Building Height [m]

22.15 0.00002 1.118.114157908.29559932.18

1.114.304158296.64560372.57

Source Type: LINE VOLUME

Source: SLINE2

Release Height[m]

Base Elevation[m]

Y Coordinate for points[m]

X Coordinate for Points[m]

Length of Side[m]

Emission Rate[g/ s]

Building Height [m]

22.15 0.00030 2.508.594157887.92559934.05

2.508.094157904.55559952.30

2.508.334157892.79559964.47

0.007.354157919.96559994.07

0.007.254157909.42560002.18

0.008.364157869.67559955.54

0.008.344157857.51559965.68

0.007.224157898.06560011.10




Volume Sources Generated from Line Sources

LineSource

ID

VolumeSource

ID

X Coordinate[m]

Y Coordinate[m]

BaseElevation

[m]

ReleaseHeight

[m[

EmissionRate[g/s]

Length ofSide[m]

BuildingHeight

[m]

Initial Lateral Dimencion

[m]

Initial VerticalDimencion

[m]

SLINE1 L0000001 559940.49 4157915.61 7.92 1.11 22.15 20.60 2.371.07E-6

L0000002 559973.71 4157944.91 7.52 1.11 22.15 20.60 2.371.07E-6

L0000003 560006.94 4157974.21 6.98 1.11 22.15 20.60 2.371.07E-6

L0000004 560040.16 4158003.51 6.56 1.11 22.15 20.60 2.371.07E-6

L0000005 560073.39 4158032.81 6.22 1.11 22.15 20.60 2.371.07E-6

L0000006 560106.62 4158062.11 5.95 1.11 22.15 20.60 2.371.07E-6

L0000007 560139.84 4158091.41 5.56 1.11 22.15 20.60 2.371.07E-6

L0000008 560173.07 4158120.71 5.27 1.11 22.15 20.60 2.371.07E-6

L0000009 560206.30 4158150.01 5.16 1.11 22.15 20.60 2.371.07E-6

L0000010 560239.52 4158179.31 5.10 1.11 22.15 20.60 2.371.07E-6

L0000011 560272.75 4158208.61 5.00 1.11 22.15 20.60 2.371.07E-6

L0000012 560305.98 4158237.92 4.80 1.11 22.15 20.60 2.371.07E-6

L0000013 560339.20 4158267.22 4.51 1.11 22.15 20.60 2.371.07E-6

L0000014 560372.43 4158296.52 4.44 1.11 22.15 20.60 2.371.07E-6

LineSource

ID

VolumeSource

ID

X Coordinate[m]

Y Coordinate[m]

BaseElevation

[m]

ReleaseHeight

[m[

EmissionRate[g/s]

Length ofSide[m]

BuildingHeight

[m]

Initial Lateral Dimencion

[m]

Initial VerticalDimencion

[m]

SLINE2 L0000251 559942.24 4157895.38 8.27 2.50 22.15 19.62 2.370.00005

L0000252 559973.05 4157900.67 7.98 1.77 22.15 19.62 2.370.00005

L0000253 560001.91 4157909.19 7.27 0.00 22.15 19.62 2.370.00005

L0000254 559969.80 4157881.82 8.48 0.00 22.15 19.62 2.370.00005

L0000255 559971.37 4157862.59 8.50 0.00 22.15 19.62 2.370.00005

L0000256 560002.84 4157890.69 7.33 0.00 22.15 19.62 2.370.00005




Receptor Networks



ReceptorNetwork ID







UCART1 559583.36 4157350.17 100.00 100.009 11

Discrete Receptors

Discrete Cartesian Receptors




559980.62 4157854.20 8.611



Primary




559925.01 4157893.08 8.311 FENCEPRI

559968.56 4157844.09 8.422 FENCEPRI

560024.02 4157895.12 7.193 FENCEPRI

559995.44 4157927.78 7.374 FENCEPRI

559963.80 4157900.23 8.245 FENCEPRI

559949.85 4157915.54 7.946 FENCEPRI

Receptor Groups







Profile Met Data



Filename:

Format Type:

Filename:




Wind Direction



Upper Air


Surface



2009 OAKLAND/WSO AP


Wind Speed


Data Period



10.8

8.23

5.14

3.09

1.54

No Upper Bound


F

E

D

C

B

A

Stability Category




APPENDIX A Air Quality and Greenhouse Gas Assessment

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Transcript of APPENDIX A Air Quality and Greenhouse Gas Assessment