San Jacinto City Council
February 4, 2025

1.0 INTRODUCTION

1.1 Purpose of Analysis and Study Objectives
This Air Quality, Energy, and Greenhouse Gas (GHG) Emissions Impact Analysis has been completed to determine the air quality, energy, and GHG emissions impacts associated with the proposed McLeish Ranch Residential project (proposed project). The following is provided in this report:
• A description of the proposed project;
• A description of the atmospheric setting;
• A description of the criteria pollutants and GHGs;
• A description of the air quality regulatory framework; • A description of the energy conservation regulatory framework; • A description of the GHG emissions regulatory framework; • A description of the air quality, energy, and GHG emissions thresholds including the California Environmental Quality Act (CEQA) significance thresholds; • An analysis of the conformity of the proposed project with the South Coast Air Quality Management District (SCAQMD) Air Quality Management Plan (AQMP); • An analysis of the short-term construction related and long-term operational air quality, energy, and GHG emissions impacts; and
• An analysis of the conformity of the proposed project with all applicable energy and GHG emissions reduction plans and policies.

1.2 Site Locations and Study Area
The project site is located in the central portion of the City of San Jacinto (City). The approximately 96- acre project site is currently utilized for agriculture uses and is bounded by single-family residential uses to the northeast, a detention basin and Lyon Avenue to the east, San Jacinto Reservoir, agricultural uses and a ranch home to the south, and agricultural uses to the west. The project local study area is shown in Figure 1.

Sensitive Receptors in Project Vicinity
The nearest sensitive receptors to the project site are single-family homes located as near as 15 feet to the northeast of the project site. There is also a ranch house located as near as 80 feet to the south of the project site. The nearest school is Monte Vista Middle School, which is located as near as 0.6 mile south of the project site.

1.3 Proposed Project Description
The proposed project would consist of developing the project site with 424 single-family homes, with eight open space lots that would be utilized as park space and a detention basin, and an onsite roadway system that includes a proposed extension of De Anza Drive through the project site. The proposed site plan is shown in Figure 2.

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McLeish Ranch Residential Project, Air Quality, Energy, and GHG Emissions Impact Analysis City of San Jacinto

1.4 Executive Summary
Standard Air Quality, Energy, and GHG Regulatory Conditions The proposed project will be required to comply with the following regulatory conditions from the SCAQMD and State of California (State).

South Coast Air Quality Management District Rules
The following lists the SCAQMD rules that are applicable, but not limited to the proposed project. • Rule 402 Nuisance – Controls the emissions of odors and other air contaminants; • Rule 403 Fugitive Dust – Controls the emissions of fugitive dust; • Rules 1108 and 1108.1 Cutback and Emulsified Asphalt – Controls the VOC content in asphalt; • Rule 1113 Architectural Coatings – Controls the VOC content in paints and solvents; and • Rule 1143 Paint Thinners – Controls the VOC content in paint thinners; State of California Rules
The following lists the State of California Code of Regulations (CCR) air quality emission rules that are applicable, but not limited to the proposed project.
• CCR Title 13, Article 4.8, Chapter 9, Section 2449 – In use Off-Road Diesel Vehicles; • CCR Title 13, Section 2025 – On-Road Diesel Truck Fleets; • CCR Title 24 Part 6 – California Building Energy Standards; and • CCR Title 24 Part 11 – California Green Building Standards.

Summary of Analysis Results
The following is a summary of the proposed project’s impacts with regard to the State CEQA Guidelines air quality, energy, and GHG emissions checklist questions.

Conflict with or obstruct implementation of the applicable air quality plan? Less than significant impact.

Result in a cumulatively considerable net increase of any criteria pollutant for which the project region is non-attainment under an applicable Federal or State ambient air quality standard? Less than significant impact.

Expose sensitive receptors to substantial pollutant concentrations? Less than significant impact.

Result in other emissions (such as those leading to odors) adversely affecting a substantial number of people?
Less than significant impact.

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Result in potentially significant environmental impact due to wasteful, inefficient, or unnecessary consumption of energy resources, during project construction or operation; Less than significant impact.

Conflict with or obstruct a state or local plan for renewable energy; Less than significant impact.

Generate GHG emissions, either directly or indirectly, that may have a significant impact on the environment?
This Report only quantifies GHG emissions and does not provide a determination of significance.

Conflict with any applicable plan, policy or regulation of an agency adopted for the purpose of reducing the emissions of GHGs?
This Report only quantifies GHG emissions and does not provide a determination of significance.

1.5 Mitigation Measures for the Proposed Project
This analysis found that implementation of the State and SCAQMD air quality, energy, and GHG emissions reductions regulations were adequate to limit criteria pollutants, toxic air contaminants, odors, and energy emissions from the proposed project to less than significant levels. No mitigation measures are required for the proposed project with respect to air quality and energy.

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Packet Pg. 689 Attachment: Planning Commission Staff Report (McLeish Ranch Planned Development Permit & Tentative Tract Map 38203 (P22-022)) Figure 1 Project Local Study Area
SOURCE: County of Riverside and ESRI. N Project Site

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Packet Pg. 690 Attachment: Planning Commission Staff Report (McLeish Ranch Planned Development Permit & Tentative Tract Map 38203 (P22-022)) Figure 2 Proposed Site Plan
SOURCE: Blaine A. Womer Civil Engineering.

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2.0 AIR POLLUTANTS
Air pollutants are generally classified as either criteria pollutants or non-criteria pollutants. Federal ambient air quality standards have been established for criteria pollutants, whereas no ambient standards have been established for non-criteria pollutants. For some criteria pollutants, separate standards have been set for different periods. Most standards have been set to protect public health. For some pollutants, standards have been based on other values (such as protection of crops, protection of materials, or avoidance of nuisance conditions). A summary of federal and state ambient air quality standards is provided in the Regulatory Framework section.

2.1 Criteria Pollutants and Ozone Precursors
The criteria pollutants consist of: ozone, nitrogen oxides (NOx), CO, sulfur oxides (SOx), lead, and particulate matter (PM). The ozone precursors consist of NOx and VOC. These pollutants can harm your health and the environment, and cause property damage. The Environmental Protection Agency (EPA) calls these pollutants “criteria” air pollutants because it regulates them by developing human healthbased and/or environmentally-based criteria for setting permissible levels. The following provides descriptions of each of the criteria pollutants and ozone precursors.

Nitrogen Oxides
NOx is the generic term for a group of highly reactive gases which contain nitrogen and oxygen. While most NOx are colorless and odorless, concentrations of nitrogen dioxide (NO2) can often be seen as a reddish-brown layer over many urban areas. NOx form when fuel is burned at high temperatures, as in a combustion process. The primary manmade sources of NOx are motor vehicles, electric utilities, and other industrial, commercial, and residential sources that burn fuel. NOx reacts with other pollutants to form, ground-level ozone, nitrate particles, acid aerosols, as well as NO2, which cause respiratory problems. NOx and the pollutants formed from NOx can be transported over long distances, following the patterns of prevailing winds. Therefore, controlling NOx is often most effective if done from a regional perspective, rather than focusing on the nearest sources.

Ozone
Ozone is not usually emitted directly into the air, instead it is created by a chemical reaction between NOx and VOCs in the presence of sunlight. Motor vehicle exhaust, industrial emissions, gasoline vapors, chemical solvents as well as natural sources emit NOx and VOC that help form ozone. Ground-level ozone is the primary constituent of smog. Sunlight and hot weather cause ground-level ozone to form with the greatest concentrations usually occurring downwind from urban areas. Ozone is subsequently considered a regional pollutant. Ground-level ozone is a respiratory irritant and an oxidant that increases susceptibility to respiratory infections and can cause substantial damage to vegetation and other materials. Because NOx and VOC are ozone precursors, the health effects associated with ozone are also indirect health effects associated with significant levels of NOx and VOC emissions.

Carbon Monoxide
Carbon monoxide (CO) is a colorless, odorless gas that is formed when carbon in fuel is not burned completely. It is a component of motor vehicle exhaust, which contributes approximately 56 percent of all CO emissions nationwide. In cities, 85 to 95 percent of all CO emissions may come from motor vehicle exhaust. Other sources of CO emissions include industrial processes (such as metals processing and chemical manufacturing), residential wood burning, and natural sources such as forest fires. Woodstoves,

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gas stoves, cigarette smoke, and unvented gas and kerosene space heaters are indoor sources of CO. The highest levels of CO in the outside air typically occur during the colder months of the year when inversion conditions are more frequent. The air pollution becomes trapped near the ground beneath a layer of warm air. CO is described as having only a local influence because it dissipates quickly. Since CO concentrations are strongly associated with motor vehicle emissions, high CO concentrations generally occur in the immediate vicinity of roadways with high traffic volumes and traffic congestion, active parking lots, and in automobile tunnels. Areas adjacent to heavily traveled and congested intersections are particularly susceptible to high CO concentrations.

CO is a public health concern because it combines readily with hemoglobin and thus reduces the amount of oxygen transported in the bloodstream. The health threat from lower levels of CO is most serious for those who suffer from heart disease such as angina, clogged arteries, or congestive heart failure. For a person with heart disease, a single exposure to CO at low levels may cause chest pain and reduce that person’s ability to exercise; repeated exposures may contribute to other cardiovascular effects. High levels of CO can affect even healthy people. People who breathe high levels of CO can develop vision problems, reduced ability to work or learn, reduced manual dexterity, and difficulty performing complex tasks. At extremely high levels, CO is poisonous and can cause death.

Sulfur Oxides
SOx gases are formed when fuel containing sulfur, such as coal and oil is burned, as well as from the refining of gasoline. SOx dissolves easily in water vapor to form acid and interacts with other gases and particles in the air to form sulfates and other products that can be harmful to people and the environment.

Lead
Lead is a metal found naturally in the environment as well as manufactured products. The major sources of lead emissions have historically been motor vehicles and industrial sources. Due to the phase out of leaded gasoline, metal processing is now the primary source of lead emissions to the air. High levels of lead in the air are typically only found near lead smelters, waste incinerators, utilities, and lead-acid battery manufacturers. Exposure of fetuses, infants and children to low levels of lead can adversely affect the development and function of the central nervous system, leading to learning disorders, distractibility, inability to follow simple commands, and lower intelligence quotient. In adults, increased lead levels are associated with increased blood pressure.

Particulate Matter
PM is the term for a mixture of solid particles and liquid droplets found in the air. PM is made up of a number of components including acids (such as nitrates and sulfates), organic chemicals, metals, and soil or dust particles. The size of particles is directly linked to their potential for causing health problems.

Particles that are less than 10 micrometers in diameter (PM10) that are also known as Respirable Particulate Matter are the particles that generally pass through the throat and nose and enter the lungs.

Once inhaled, these particles can affect the heart and lungs and cause serious health effects. Particles that are less than 2.5 micrometers in diameter (PM2.5) that are also known as Fine Particulate Matter have been designated as a subset of PM10 due to their increased negative health impacts and its ability to remain suspended in the air longer and travel further.

Volatile Organic Compounds
Hydrocarbons are organic gases that are formed from hydrogen and carbon and sometimes other elements. Hydrocarbons that contribute to formation of ozoneare referred to and regulated as VOCs (also

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referred to as reactive organic gases). Combustion engine exhaust, oil refineries, and fossil-fueled power plants are the sources of hydrocarbons. Other sources of hydrocarbons include evaporation from petroleum fuels, solvents, dry cleaning solutions, and paint.

VOC is not classified as a criteria pollutant, since VOCs by themselves are not a known source of adverse health effects. The primary health effects of VOCs result from the formation of ozone and its related health effects. High levels of VOCs in the atmosphere can interfere with oxygen intake by reducing the amount of available oxygen through displacement. Carcinogenic forms of hydrocarbons, such as benzene, are considered TACs. There are no separate health standards for VOCs as a group.

2.2 Other Pollutants of Concern
Toxic Air Contaminants
In addition to the above-listed criteria pollutants, TACs are another group of pollutants of concern. TACs is a term that is defined under the California Clean Air Act and consists of the same substances that are defined as Hazardous Air Pollutants (HAPs) in the Federal Clean Air Act. There are over 700 hundred 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. Cars and trucks release at least 40 different toxic air contaminants. The most important of these TACs, in terms of health risk, are diesel particulates, benzene, formaldehyde, 1,3-butadiene, and acetaldehyde. Public exposure to TACs can result from emissions from normal operations as well as from accidental releases. Health effects of TACs include cancer, birth defects, neurological damage, and death.

TACs are less pervasive in the urban atmosphere than criteria air pollutants, however they are linked to short-term (acute) or long-term (chronic or carcinogenic) adverse human health effects. There are hundreds of different types of TACs with varying degrees of toxicity. Sources of TACs include industrial processes, commercial operations (e.g., gasoline stations and dry cleaners), and motor vehicle exhaust.

According to The California Almanac of Emissions and Air Quality 2013 Edition, the majority of the estimated health risk from TACs can be attributed to relatively few compounds, the most important of which is DPM. DPM is a subset of PM2.5 because the size of diesel particles are typically 2.5 microns and smaller. The identification of DPM as a TAC in 1998 led the California Air Resources Board (CARB) to adopt the Risk Reduction Plan to Reduce Particulate Matter Emissions from Diesel-fueled Engines and Vehicles in September 2000. The plan’s goals are a 75-percent reduction in DPM by 2010 and an 85-percent reduction by 2020 from the 2000 baseline. Diesel engines emit a complex mixture of air pollutants, composed of gaseous and solid material. The visible emissions in diesel exhaust are known as particulate matter or PM, which includes carbon particles or “soot.” Diesel exhaust also contains a variety of harmful gases and over 40 other cancer-causing substances. California’s identification of DPM as a toxic air contaminant was based on its potential to cause cancer, premature deaths, and other health problems.

Exposure to DPM is a health hazard, particularly to children whose lungs are still developing and the elderly who may have other serious health problems. Overall, diesel engine emissions are responsible for the majority of California’s potential airborne cancer risk from combustion sources.

Asbestos
Asbestos is listed as a TAC by CARB and as a HAP by the EPA. Asbestos occurs naturally in mineral formations and crushing or breaking these rocks, through construction or other means, can release

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asbestiform fibers into the air. Asbestos emissions can result from the sale or use of asbestos-containing materials, road surfacing with such materials, grading activities, and surface mining. The risk of disease is dependent upon the intensity and duration of exposure. When inhaled, asbestos fibers may remain in the lungs and with time may be linked to such diseases as asbestosis, lung cancer, and mesothelioma. The nearest likely locations of naturally occurring asbestos, as identified in the General Location Guide for Ultramafic Rocks in California, prepared by the California Division of Mines and Geology, is located in Santa Barbara County. The nearest historic asbestos mine to the project site, as identified in the Reported Historic Asbestos Mines, Historic Asbestos Prospects, and Other Natural Occurrences of Asbestos in California, prepared by U.S. Geological Survey, is located at Asbestos Mountain, which is approximately 32 miles southeast of the project site in the San Jacinto Mountains. Due to the distance to the nearest natural occurrences of asbestos, the project site is not likely to contain asbestos.

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3.0 GREENHOUSE GASES

3.1 Greenhouse Gases
Constituent gases of the Earth’s atmosphere, called atmospheric GHGs, play a critical role in the Earth’s radiation amount by trapping infrared radiation from the Earth’s surface, which otherwise would have escaped to space. Prominent greenhouse gases contributing to this process include carbon dioxide (CO2), methane (CH4), ozone, water vapor, nitrous oxide (N2O), and chlorofluorocarbons (CFCs). This phenomenon, known as the Greenhouse Effect, is responsible for maintaining a habitable climate.

Anthropogenic (caused or produced by humans) emissions of these greenhouse gases in excess of natural ambient concentrations are responsible for the enhancement of the Greenhouse Effect and have led to a trend of unnatural warming of the Earth’s natural climate, known as global warming or climate change.

Emissions of gases that induce global warming are attributable to human activities associated with industrial/manufacturing, agriculture, utilities, transportation, and residential land uses. Emissions of CO2 and N2O are byproducts of fossil fuel combustion. Methane, a potent greenhouse gas, results from offgassing associated with agricultural practices and landfills. Sinks of CO2, where CO2 is stored outside of the atmosphere, include uptake by vegetation and dissolution into the ocean. The following provides a description of each of the greenhouse gases and their global warming potential.

Water Vapor
Water vapor is the most abundant, important, and variable GHG in the atmosphere. Water vapor is not considered a pollutant; in the atmosphere it maintains a climate necessary for life. Changes in its concentration are primarily considered a result of climate feedbacks related to the warming of the atmosphere rather than a direct result of industrialization. The feedback loop in which water is involved is critically important to projecting future climate change. As the temperature of the atmosphere rises, more water is evaporated from ground storage (rivers, oceans, reservoirs, soil). Because the air is warmer, the relative humidity can be higher (in essence, the air is able to “hold” more water when it is warmer), leading to more water vapor in the atmosphere. As a GHG, the higher concentration of water vapor is then able to absorb more thermal indirect energy radiated from the Earth, thus further warming the atmosphere. The warmer atmosphere can then hold more water vapor and so on and so on. This is referred to as a “positive feedback loop.” The extent to which this positive feedback loop will continue is unknown as there is also dynamics that put the positive feedback loop in check. As an example, when water vapor increases in the atmosphere, more of it will eventually also condense into clouds, which are more able to reflect incoming solar radiation (thus allowing less energy to reach the Earth’s surface and heat it up).

Carbon Dioxide
The natural production and absorption of CO2 is achieved through the terrestrial biosphere and the ocean.

However, humankind has altered the natural carbon cycle by burning coal, oil, natural gas, and wood.

Since the industrial revolution began in the mid-1700s, each of these activities has increased in scale and distribution. CO2 was the first GHG demonstrated to be increasing in atmospheric concentration with the first conclusive measurements being made in the last half of the 20th century. Prior to the industrial revolution, concentrations were fairly stable at 280 parts per million (ppm). The International Panel on Climate Change (IPCC) indicates that concentrations were 379 ppm in 2005, an increase of more than 30 percent. Left unchecked, the IPCC projects that concentration of carbon dioxide in the atmosphere is projected to increase to a minimum of 540 ppm by 2100 as a direct result of anthropogenic sources. This

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could result in an average global temperature rise of at least two degrees Celsius or 3.6 degrees Fahrenheit.

Methane
CH4 is an extremely effective absorber of radiation, although its atmospheric concentration is less than that of CO2. Its lifetime in the atmosphere is brief (10 to 12 years), compared to some other GHGs (such as CO2, N2O, and CFCs). CH4 has both natural and anthropogenic sources. It is released as part of the biological processes in low oxygen environments, such as in swamplands or in rice production (at the roots of the plants). Over the last 50 years, human activities such as growing rice, raising cattle, using natural gas, and mining coal have added to the atmospheric concentration of methane. Other anthropocentric sources include fossil-fuel combustion and biomass burning.

Nitrous Oxide
Concentrations of N2O also began to rise at the beginning of the industrial revolution. In 1998, the global concentration of this GHG was documented at 314 parts per billion (ppb). N2O is produced by microbial processes in soil and water, including those reactions which occur in fertilizer containing nitrogen. In addition to agricultural sources, some industrial processes (fossil fuel-fired power plants, nylon production, nitric acid production, and vehicle emissions) also contribute to its atmospheric load. N2O is also commonly used as an aerosol spray propellant (i.e., in whipped cream bottles, in potato chip bags to keep chips fresh, and in rocket engines and race cars).

Chlorofluorocarbons
CFCs are gases formed synthetically by replacing all hydrogen atoms in methane or ethane with chlorine and/or fluorine atoms. CFCs are nontoxic, nonflammable, insoluble, and chemically unreactive in the troposphere (the level of air at the Earth’s surface). CFCs have no natural source, but were first synthesized in 1928. They were used for refrigerants, aerosol propellants, and cleaning solvents. Due to the discovery that they are able to destroy stratospheric ozone, a global effort to halt their production was undertaken and in 1989 the European Community agreed to ban CFCs by 2000 and subsequent treaties banned CFCs worldwide by 2010. This effort was extremely successful, and the levels of the major CFCs are now remaining level or declining. However, their long atmospheric lifetimes mean that some of the CFCs will remain in the atmosphere for over 100 years.

Hydrofluorocarbons
Hydrofluorocarbons (HFCs) are synthetic man-made chemicals that are used as a substitute for CFCs. Out of all the GHGs, they are one of three groups with the highest global warming potential. The HFCs with the largest measured atmospheric abundances are (in order), HFC-23 (CHF3), HFC-134a (CF3CH2F), and HFC-152a (CH3CHF2). Prior to 1990, the only significant emissions were HFC-23. HFC-134a use is increasing due to its use as a refrigerant. Concentrations of HFC-23 and HFC-134a in the atmosphere are now about 10 parts per trillion (ppt) each. Concentrations of HFC-152a are about 1 ppt. HFCs are manmade for applications such as automobile air conditioners and refrigerants.

Perfluorocarbons
Perfluorocarbons (PFCs) have stable molecular structures and do not break down through the chemical processes in the lower atmosphere. High-energy ultraviolet rays about 60 kilometers above Earth’s surface are able to destroy the compounds. Because of this, PFCs have very long lifetimes, between 10,000 and 50,000 years. Two common PFCs are tetrafluoromethane (CF4) and hexafluoroethane (C2F6).

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Concentrations of CF4 in the atmosphere are over 70 ppt. The two main sources of PFCs are primary aluminum production and semiconductor manufacturing.

Sulfur Hexafluoride
Sulfur Hexafluoride (SF6) is an inorganic, odorless, colorless, nontoxic, nonflammable gas. SF6 has the highest global warming potential of any gas evaluated; 23,900 times that of CO2. Concentrations in the 1990s were about 4 ppt. Sulfur hexafluoride is used for insulation in electric power transmission and distribution equipment, in the magnesium industry, in semiconductor manufacturing, and as a tracer gas for leak detection.

Aerosols
Aerosols are particles emitted into the air through burning biomass (plant material) and fossil fuels.

Aerosols can warm the atmosphere by absorbing and emitting heat and can cool the atmosphere by reflecting light. Cloud formation can also be affected by aerosols. Sulfate aerosols are emitted when fuel containing sulfur is burned. Black carbon (or soot) is emitted during biomass burning due to the incomplete combustion of fossil fuels. Particulate matter regulation has been lowering aerosol concentrations in the United States; however, global concentrations are likely increasing.

3.2 Global Warming Potential
GHGs have varying global warming potential (GWP). The GWP is the potential of a gas or aerosol to trap heat in the atmosphere; it is the cumulative radiative forcing effects of a gas over a specified time horizon resulting from the emission of a unit mass of gas relative to the reference gas, CO2. The GHGs listed by the IPCC and the CEQA Guidelines are discussed in this section in order of abundance in the atmosphere.

Water vapor, the most abundant GHG, is not included in this list because its natural concentrations and fluctuations far outweigh its anthropogenic (human-made) sources. To simplify reporting and analysis, GHGs are commonly defined in terms of their GWP. The IPCC defines the GWP of various GHG emissions on a normalized scale that recasts all GHG emissions in terms of CO2 equivalent (CO2e). As such, the GWP of CO2 is equal to 1. The GWP values used in this analysis are based on the 2007 IPCC Fourth Assessment Report, which are used in CARB’s 2014 Scoping Plan Update and the CalEEMod Model Version 2022.1 and are detailed in Table A. The IPCC has updated the Global Warming Potentials of some gases in their Fifth Assessment Report, however the new values have not yet been incorporated into the CalEEMod model that has been utilized in this analysis.

Table A – Global Warming Potentials, Atmospheric Lifetimes and Abundances of GHGs Gas
Atmospheric Lifetime
(years)1
Global Warming Potential
(100 Year Horizon)2
Atmospheric
Abundance
Carbon Dioxide (CO2) 50-200 1 379 ppm
Methane (CH4) 9-15 25 1,774 ppb
Nitrous Oxide (N2O) 114 298 319 ppb
HFC-23 270 14,800 18 ppt
HFC-134a 14 1,430 35 ppt
HFC-152a 1.4 124 3.9 ppt
PFC: Tetrafluoromethane (CF4) 50,000 7,390 74 ppt
PFC: Hexafluoroethane (C2F6) 10,000 12,200 2.9 ppt
Sulfur Hexafluoride (SF6) 3,200 22,800 5.6 ppt
Notes:

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1 Defined as the half-life of the gas. 2 Compared to the same quantity of CO2 emissions and is based on the Intergovernmental Panel On Climate Change (IPCC) 2007 standard, which is utilized in CalEEMod (Version 2022.1),that is used in this report (CalEEMod user guide: Appendix A).

Definitions: ppm = parts per million; ppb = parts per billion; ppt = parts per trillion Source: IPCC 2007, EPA 2015

3.3 Greenhouse Gas Emissions Inventory
According to the Carbon Dioxide Information Analysis Center1, 9,855 million metric tons (MMT) of CO2e emissions were created globally in the year 2014. According to the Environmental Protection Agency (EPA), the breakdown of global GHG emissions by sector consists of: 25 percent from electricity and heat production; 21 percent from industry; 24 percent from agriculture, forestry and other land use activities; 14 percent from transportation; 6 percent from building energy use; and 10 percent from all other sources of energy use2
.

According to Inventory of U.S. Greenhouse Gas Emissions and Sinks 1990-2020, prepared by EPA, in 2020 total U.S. GHG emissions were 5,981.4 million metric tons (MMT) of CO2e emissions. Total U.S. emissions have decreased by 7.3 percent between 1990 and 2020, which is down from a high of 15.7 percent above 1990 levels in 2007. Emissions decreased from 2019 to 2020 by 9.0 percent. The sharp decline in emissions from 2019 to 2020 is largely due to the impacts of the coronavirus pandemic on travel and economic activity.

According to California Greenhouse Gas Emissions for 2000 to 2020 Trends of Emissions and Other Indicators, prepared by the CARB, October 26, 2022, the State of California created 369.2 million metric tons of carbon dioxide equivalent (MMTCO2e) in 2020. The 2020 emissions were 35.3 MMTCO2e lower than 2019 levels and almost 61.8 MMTCO2e below the State adopted year 2020 GHG limit of 431 MMTCO2e. The 2019 to 2020 decrease in emissions is likely an anomaly as it was due in large part to the impacts of the COVID-19 pandemic. The transportation sector showed the largest decline in emissions of 27 MMTCO2e (16 percent) compared to 2019. Between 2019 and 2020, California’s Gross Domestic Product (GDP) contracted 2.8 percent, while GHG intensity of California’s economy decreased 6.2 percent. 1 Obtained from: https://cdiac.ess-dive.lbl.gov/trends/emis/tre_glob_2014.html 2 Obtained from: https://www.epa.gov/ghgemissions/global-greenhouse-gas-emissions-data

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4.0 AIR QUALITY MANAGEMENT
The air quality at the project site is addressed through the efforts of various federal, state, regional, and local government agencies. These agencies work jointly, as well as individually, to improve air quality through legislation, regulations, planning, policy-making, education, and a variety of programs. The agencies responsible for improving the air quality are discussed below.

4.1 Federal – United States Environmental Protection Agency The Clean Air Act, first passed in 1963 with major amendments in 1970, 1977 and 1990, is the overarching legislation covering regulation of air pollution in the United States. The Clean Air Act has established the mandate for requiring regulation of both mobile and stationary sources of air pollution at the state and federal level. The EPA was created in 1970 in order to consolidate research, monitoring, standard-setting and enforcement authority into a single agency.

The EPA is responsible for setting and enforcing the National Ambient Air Quality Standards (NAAQS) for atmospheric pollutants. It regulates emission sources that are under the exclusive authority of the federal government, such as aircraft, ships, and certain locomotives. NAAQS pollutants were identified using medical evidence and are shown below in Table B.

Table B – State and Federal Criteria Pollutant Standards Air
Pollutant
Concentration / Averaging Time
Most Relevant Effects
California
Standards
Federal Primary
Standards
Ozone (O3)

0.09 ppm / 1-hour

0.07 ppm / 8-hour

0.070 ppm, / 8-hour
a) Pulmonary function decrements and localized lung injury in humans and animals; (b) asthma exacerbation; (c) chronic obstructive pulmonary disease (COPD) exacerbation; (d)
respiratory infection; (e) increased school absences, and hospital admissions and emergency department (ED) visits for combined respiratory diseases; (e) increased mortality; (f) possible metabolic effects.

Vegetation damage; property damage
Carbon
Monoxide
(CO)

20.0 ppm / 1-hour

9.0 ppm / 8-hour

35.0 ppm / 1-hour

9.0 ppm / 8-hour
Visibility reduction (a) Aggravation of angina pectoris and other aspects of coronary heart disease; (b) decreased
exercise tolerance in persons with peripheral vascular disease and lung disease; (c) possible impairment of central nervous system functions; (d) possible increased risk to fetuses; (f) possible increased risk of pulmonary disease; (g) possible emergency department visits for respiratory diseases overall and visits for asthma.

Nitrogen
Dioxide
(NO2)

0.18 ppm / 1-hour

0.030 ppm / annual
100 ppb / 1-hour

0.053 ppm / annual
Short-term (a) asthma exacerbations (“asthma attacks”)
Long-term (a) asthma development; (b) higher risk of allcause, cardiovascular, and respiratory mortality.

Both short and long term NO2 exposure is also associated with chronic obstructive pulmonary disease (COPD) risk.

Potential impacts on cardiovascular health, mortality and cancer, aggravate chronic respiratory disease.

Contribution to atmospheric discoloration

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Air
Pollutant
Concentration / Averaging Time
Most Relevant Effects
California
Standards
Federal Primary
Standards
Sulfur
Dioxide
(SO2)

0.25 ppm / 1-hour

0.04 ppm / 24-hour
75 ppb / 1-hour
Respiratory symptoms (bronchoconstriction, possible
wheezing or shortness of breath) during exercise or physical activity in persons with asthma.

Possible allergic sensitization, airway inflammation, asthma development.

Respirable
Particulate
Matter
(PM10)
50 µg/m3 / 24-hour
20 µg/m3 / annual
150 µg/m3 / 24-
hour
Short -term (a) increase in mortality rates; (b) increase in respiratory infections; (c) increase in number and severity of asthma attacks; (d) COPD exacerbation; (e) increase in combined respiratory-diseases and number of hospital
admissions; (f) increased mortality due to cardiovascular or respiratory diseases; (g) increase in hospital admissions for acute respiratory conditions; (h) increase in school
absences; (i) increase in lost work days; (j) decrease in respiratory function in children; (k) increase medication use in children and adults with asthma.

Long-term (a) reduced lung function growth in children; (b) changes in lung development; (c) development of asthma
in children; (d) increased risk of cardiovascular diseases; (e) increased total mortality from lung cancer; (f) increased risk of premature death.

Possible link to metabolic, nervous system, and
reproductive and developmental effects for short-term and long-term exposure to PM2.5.

Suspended
Particulate
Matter
(PM2.5)
12 µg/m3 / annual 35 µg/m3 / 24-hour
12 µg/m3 / annual
Sulfates 25 µg/m3 / 24-hour No Federal
Standards
(a) Decrease in lung function; (b) aggravation of asthmatic symptoms; (c) vegetation damage; (d) Degradation of
visibility; (e) property damage
Lead 1.5 µg/m3 / 30-day 0.15 µg/m3 /3-
month rolling
(a) Learning disabilities; (b) impairment of blood formation and nerve function; (c) cardiovascular effects, including coronary heart disease and hypertension
Possible male reproductive system effects
Hydrogen
Sulfide 0.03 ppm / 1-hour No Federal Standards
Exposure to lower ambient concentrations above the standard may result in objectionable odor and may be accompanied by symptoms such as headaches, nausea, dizziness, nasal
irritation, cough, and shortness of breath
Source: 2022 AQMP, SCAQMD, 2022.

As part of its enforcement responsibilities, the EPA requires each state with federal nonattainment areas to prepare and submit a State Implementation Plan (SIP) that demonstrates the means to attain the national standards. The SIP must integrate federal, state, and local components and regulations to identify specific measures to reduce pollution, using a combination of performance standards and marketbased programs within the timeframe identified in the SIP. The CARB defines attainment as the category given to an area with no violations in the past three years. As indicated below in Table C, the Air Basin has been designated by EPA for the national standards as a non-attainment area for ozone and PM2.5 and partial non-attainment for lead. Currently, the Air Basin is in attainment with the national ambient air quality standards for CO, PM10, SO2, and NO2.

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Table C – National Air Quality Standards Attainment Status – South Coast Air Basin Criteria Pollutant Averaging Time Designationa Attainment Dateb Ozone
1979 1-Hour (0.12 ppm) Nonattainment (Extreme) 2/6/2023 (revised deadline)
2015 8-Hour (0.07 ppm)d Nonattainment (Extreme) 8/3/2038 2008 8-Hour (0.075 ppm)d Nonattainment (Extreme) 7/20/2032 1997 8-Hour (0.08 ppm)d Nonattainment (Extreme) 6/15/2024 PM2.5e
2006 24-Hour (35 μg/m3) Nonattainment (Serious) 12/31/2019 2012 Annual (12 μg/m3) Nonattainment (Serious) 12/31/2021 1997 Annual (15 μg/m3) Attainment (final determination
pending)
4/5/2015
(attained 2013)
PM10f 1987 24-Hour (150 μg/m3) Attainment (Maintenance) 7/26/2013 (attained)
Leadg 2008 3-Months Rolling
(0.15 μg/m3)
Nonattainment (Partial)
(Attainment determination
requested)
12/31/2015
CO
1971 1-Hour (35 ppm) Attainment (Maintenance) 6/11/2007 1971 8-Hour (9 ppm) Attainment (Maintenance) 6/11/2007
NO2
h 2010 1-Hour (100 ppb) Unclassifiable/Attainment N/A (attained) 1971 Annual (0.053 ppm) Attainment (Maintenance) 9/22/1998 (attained) SO2
i 2010 1-Hour (75 ppb) Unclassifiable/Attainment 1/9/2018 1971 24-Hour (0.14 ppm) Unclassifiable/Attainment 3/19/1979 Source: SCAQMD, 2022
Notes:
a) U.S. EPA often only declares Nonattainment areas; everywhere else is listed as Unclassifiable/Attainment or Unclassifiable. b) A design value below the NAAQS for data through the full year or smog season prior to the attainment date is typically required for attainment demonstration.
c) The 1979 1-hour ozone NAAQS (0.12 ppm) was revoked, effective June 15, 2005; however, the Basin has not attained this standard and therefore has some continuing obligations with respect to the revoked standard; original attainment date was 11/15/2010; the revised attainment date is 2/6/2023.
d) The 2008 8-hour ozone NAAQS (0.075 ppm) was revised to 0.070 ppm, effective 12/28/20115 with classifications and implementation goals to be finalized by 10/1/2017; the 1997 8-hour ozone NAAQS (0.08 ppm) was revoked in the 2008 ozone implementation rule, effective 4/6/2015; there are continuing obligations under the revoked 1997 and revised 2008 ozone NAAQS until they are attained. e) The attainment deadline for the 2006 24-Hour PM2.5 NAAQS was 12/31/15 for the former “moderate” classification; the EPA approved reclassification to “serious”, effective 2/12/16 with an attainment deadline of 12/31/2019; the 2012 (proposal year) annual PM2.5 NAAQS was revised on 1/15/2013, effective 3/18/2013, from 15 to 12 μg/m3 ; new annual designations were final 1/15/2015, effective 4/15/2015; on 7/25/2016 the EPA finalized a determination that the Basin attained the 1997 annual (15.0 μg/m3) and 24-hour PM2.5 (65 μg/m3 ) NAAQS,
effective 8/24/2016.
f) The annual PM10 standard was revoked, effective 12/18/2006; the 24-hour PM10 NAAQS deadline was 12/31/2006; the Basin’s Attainment Re-designation Request and PM10 Maintenance Plan was approved by the EPA on 6/26/2103, effective 7/26/2013. g) Partial Nonattainment designation – Los Angeles County portion of the Basin only for near-source monitors; expect to remain in attainment based on current monitoring data; attainment re-designation request pending. h) New 1-hour NO2 NAAQS became effective 8/2/2010, with attainment designations 1/20/2012; annual NO2 NAAQS retained. i) The 1971 annual and 24-hour SO2 NAAQS were revoked, effective 8/23/2010.

Despite substantial improvements in air quality over the past few decades, some air monitoring stations in the Air Basin still exceed the NAAQS and frequently record the highest ozone levels in the United States.

In 2020, monitoring stations in the Air Basin exceeded the most current federal standards on a total of 181 days (49 percent of the year), including: 8-hour ozone (157 days over the 2015 ozone NAAQS), 24- hour PM2.5 (39 days), PM10 (3 days), and NO2 (1 day). Nine of the top 10 stations in the nation most frequently exceeding the 2015 8-hour ozone NAAQS in 2020 were located within the Air Basin, including stations in San Bernardino, Riverside, and Los Angeles Counties (SCAQMD, 2022).

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PM2.5 levels in the Air Basin have improved significantly in recent years. Since 2015, none of the monitoring stations in the Air Basin have recorded violations of the former 1997 annual PM2.5 NAAQS (15.0 μg/m3
). On July 25, 2016 the U.S. EPA finalized a determination that the Air Basin attained the 1997 annual (15.0 μg/m3
) and 24-hour PM2.5 (65 μg/m3) NAAQS, effective August 24, 2016. However, the Air Basin does not meet the 2012 annual PM2.5 NAAQS (12.0 μg/m3 ), with six monitoring stations having
design values above the standard for the 2018-2020 period (SCAQMD, 2022).

4.2 State – California Air Resources Board
The CARB, which is 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.

In this capacity, the CARB conducts research, sets the California Ambient Air Quality Standards (CAAQS), compiles emission inventories, develops suggested control measures, provides oversight of local programs, and prepares the SIP. The CAAQS for criteria pollutants in the Air Basin are shown in Table D.

In addition, the CARB establishes emission standards for motor vehicles sold in California, consumer products (e.g. hairspray, aerosol paints, and barbeque lighter fluid), and various types of commercial equipment. It also sets fuel specifications to further reduce vehicular emissions.

Table D – California Ambient Air Quality Standards Attainment Status – South Coast Air Basin Criteria Pollutant Averaging Time Levela Designationb
Ozone
1-Hour 0.09 ppm Nonattainment
8-Hour 0.070 ppm Nonattainment
PM2.5 Annual 12 μg/m3 Nonattainment
PM10
24-Hour 50 μg/m3 Nonattainment
Annual 20 μg/m3 Nonattainment
Lead 30-Day Average 1.5 μg/m3 Attainment
CO
1-Hour 20 ppm Attainment
8-Hour 9.0 ppm Attainment
NO2
1-Hour 0.18 ppm Attainment
Annual 0.030 Attainmentc
SO2
1-Hour 0.25 ppm Attainment
24-Hour 0.04 ppm Attainment
Sulfates 24-Hour 25 μg/m3 Attainment
Hydrogen Sulfidec 1-Hour 0.03 ppm Unclassified
Source: SCAQMD, 2022
Notes:
a) CA State standards, or CAAQS, for ozone, SO2, NO2, PM10 and PM2.5 are values not to be exceeded; lead, sulfates and H2S standards are values not to be equaled or exceeded; CAAQS are listed in the Table of Standards in Section 70200 of Title 17 of the California Code of Regulations. b) CA State designations shown were updated by CARB in 2019, based on the 2016-2018 3-year period; stated designations are based on a 3-year data period after consideration of outliers and exceptional events. c) The CA-60 near road portion of San Bernardino, Riverside and Los Angeles Counties has recently been redesignated as an attainment area based on data collected between 2018 and 2020.

As shown in Table D, the Air Basin has been designated by the CARB as a non-attainment area for ozone, PM10 and PM2.5 and partial nonattainment for NO2. Currently, the Air Basin is in attainment with the ambient air quality standards for lead, CO, SO2 and sulfates, and is unclassified for Hydrogen Sulfide.

The following lists the State of California Code of Regulations (CCR) air quality emission rules that are applicable, but not limited to all residential projects in the State.

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Assembly Bill 2588
The Air Toxics “Hot Spots” Information and Assessment Act (Assembly Bill [AB] 2588, 1987, Connelly) was enacted in 1987 as a means to establish a formal air toxics emission inventory risk quantification program.

AB 2588, as amended, establishes a process that requires stationary sources to report the type and quantities of certain substances their facilities routinely release in California. The data is ranked by high, intermediate, and low categories, which are determined by: the potency, toxicity, quantity, volume, and proximity of the facility to nearby receptors.

CARB Regulation for In-Use Off-Road Diesel Vehicles
On July 26, 2007, the CARB adopted California Code of Regulations Title 13, Article 4.8, Chapter 9, Section 2449 to reduce DPM and NOx emissions from in-use off-road heavy-duty diesel vehicles in California. Such vehicles are used in construction, mining, and industrial operations. The regulation limits idling to no more than five consecutive minutes, requires reporting and labeling, and requires disclosure of the regulation upon vehicle sale. Performance requirements of the rule are based on a fleet’s average NOx emissions, which can be met by replacing older vehicles with newer, cleaner vehicles or by applying exhaust retrofits. The regulation was amended in 2010 to delay the original timeline of the performance requirement making the first compliance deadline January 1, 2014 for large fleets (over 5,000 horsepower), 2017 for medium fleets (2,501-5,000 horsepower), and 2019 for small fleets (2,500 horsepower or less). Currently, no commercial operation in California may add any equipment to their fleet that has a Tier 0, Tier 1, or Tier 2 engine. It should be noted that commercial fleets may continue to use their existing Tier 0, 1 and 2 equipment, if they can demonstrate that the average emissions from their entire fleet emissions meet the NOx emissions targets.

CARB Resolution 08-43 for On-Road Diesel Truck Fleets
On December 12, 2008 the CARB adopted Resolution 08-43, which limits NOx, PM10 and PM2.5 emissions from on-road diesel truck fleets that operate in California. On October 12, 2009 Executive Order R-09-010 was adopted that codified Resolution 08-43 into Section 2025, title 13 of the California Code of Regulations. This regulation requires that by the year 2023 all commercial diesel trucks that operate in California shall meet model year 2010 (Tier 4 Final) or latter emission standards. This regulation also provides a few exemptions including a onetime per year 3-day pass for trucks registered outside of California. All on-road diesel trucks utilized during construction of the proposed project will be required to comply with Resolution 08-43.

4.3 Regional – Southern California
The SCAQMD is the agency principally responsible for comprehensive air pollution control in the South Coast Air Basin. To that end, as a regional agency, the SCAQMD works directly with the Southern California Association of Governments (SCAG), county transportation commissions, and local governments and cooperates actively with all federal and state agencies.

South Coast Air Quality Management District
SCAQMD develops rules and regulations, establishes permitting requirements for stationary sources, inspects emission sources, and enforces such measures through educational programs or fines, when necessary. SCAQMD is directly responsible for reducing emissions from stationary, mobile, and indirect sources. It has responded to this requirement by preparing a sequence of AQMPs. The Final 2022 Air Quality Management Plan (2022 AQMP) was adopted by ARB on January 26, 2023 and has been submitted to the U.S. EPA for final approval, which is anticipated to occur sometime this year. After the 2022 AQMP

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has been adopted by the U.S. EPA, the 2022 AQMP will be incorporated into the State Implementation Plan (SIP). The 2022 AQMP establishes actions and strategies to reduce ozone levels to the U.S. EPA 2015 ozone standard of 70 ppb by 2037. The 2022 AQMP promotes extensive use of zero-emission technologies across all stationary and mobile sources coupled with rules and regulations, investment strategies, and incentives.

Although SCAQMD is responsible for regional air quality planning efforts, it does not have the authority to directly regulate air quality issues associated with plans and new development projects throughout the Air Basin. Instead, this is controlled through local jurisdictions in accordance to the California Environmental Quality Act (CEQA). In order to assist local jurisdictions with air quality compliance issues the CEQA Air Quality Handbook (SCAQMD CEQA Handbook), prepared by SCAQMD, 1993, with the most current updates found at http://www.aqmd.gov/ceqa/hdbk.html, was developed in accordance with the projections and programs detailed in the AQMPs. The purpose of the SCAQMD CEQA Handbook is to assist Lead Agencies, as well as consultants, project proponents, and other interested parties in evaluating a proposed project’s potential air quality impacts. Specifically, the SCAQMD CEQA Handbook explains the procedures that SCAQMD recommends be followed for the environmental review process required by CEQA. The SCAQMD CEQA Handbook provides direction on how to evaluate potential air quality impacts, how to determine whether these impacts are significant, and how to mitigate these impacts. The SCAQMD intends that by providing this guidance, the air quality impacts of plans and development proposals will be analyzed accurately and consistently throughout the Air Basin, and adverse impacts will be minimized.

The following lists the SCAQMD rules that are applicable but not limited to residential development projects in the Air Basin.

Rule 402 - Nuisance
Rule 402 prohibits a person from discharging from any source whatsoever such quantities of air contaminants or other material which causes injury, detriment, nuisance, or annoyance to any considerable number of persons or to the public, or which endanger the comfort, repose, health or safety of any such persons or the public, or which cause, or have a natural tendency to cause, injury or damage to business or property. Compliance with Rule 402 will reduce local air quality and odor impacts to nearby sensitive receptors.

Rule 403- Fugitive Dust
Rule 403 governs emissions of fugitive dust during construction activities and requires that no person shall cause or allow the emissions of fugitive dust such that dust remains visible in the atmosphere beyond the property line or the dust emission exceeds 20 percent opacity, if the dust is from the operation of a motorized vehicle. Compliance with this rule is achieved through application of standard Best Available Control Measures, which include but are not limited to the measures below. Compliance with these rules would reduce local air quality impacts to nearby sensitive receptors. • Utilize either a pad of washed gravel 50 feet long, 100 feet of paved surface, a wheel shaker, or a wheel washing device to remove material from vehicle tires and undercarriages before leaving project site.
• Do not allow any track out of material to extend more than 25 feet onto a public roadway and remove all track out at the end of each workday.

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• Water all exposed areas on active sites at least three times per day and pre-water all areas prior to clearing and soil moving activities.
• Apply nontoxic chemical stabilizers according to manufacturer specifications to all construction areas that will remain inactive for 10 days or longer.
• Pre-water all material to be exported prior to loading, and either cover all loads or maintain at least 2 feet of freeboard in accordance with the requirements of California Vehicle Code Section 23114.
• Replant all disturbed area as soon as practical.
• Suspend all grading activities when wind speeds (including wind gusts) exceed 25 miles per hour. • Restrict traffic speeds on all unpaved roads to 15 miles per hour or less.

Since the project site is 96 acres, it is possible that grading activities may disturb more than 50 acres at the same time or result in a daily earth-moving throughput volume of 5,000 cubic yards or more per day for at least three days, which would classify the project as a Large Operation in Rule 403. The Rule 403 requirements for Large Operations are much more extensive and a list of the required measures for Large Operations are shown in Appendix C.

Rules 1108 and 1108.1 – Cutback and Emulsified Asphalt
Rules 1108 and 1108.1 govern the sale, use, and manufacturing of asphalt and limits the VOC content in asphalt. This rule regulates the VOC contents of asphalt used during construction as well as any on-going maintenance during operations. Therefore, all asphalt used during construction and operation of the proposed project must comply with SCAQMD Rules 1108 and 1108.1.

Rule 1113 – Architectural Coatings
Rule 1113 governs the sale, use, and manufacturing of architectural coatings and limits the VOC content in sealers, coatings, paints and solvents. This rule regulates the VOC contents of paints available during construction. Therefore, all paints and solvents used during construction and operation of the proposed project must comply with SCAQMD Rule 1113.

Rule 1143 – Paint Thinners
Rule 1143 governs the sale, use, and manufacturing of paint thinners and multi-purpose solvents that are used in thinning of coating materials, cleaning of coating application equipment, and other solvent cleaning operations. This rule regulates the VOC content of solvents used during construction. Solvents used during construction and operation of the proposed project must comply with SCAQMD Rule 1143.

Southern California Association of Governments
The SCAG is the regional planning agency for Los Angeles, Orange, Ventura, Riverside, San Bernardino, and Imperial Counties and addresses regional issues relating to transportation, the economy, community development and the environment. SCAG is the federally designated Metropolitan Planning Organization (MPO) for the majority of the southern California region and is the largest MPO in the nation. With respect to air quality planning, SCAG has prepared the 2020-2045 Regional Transportation Plan/Sustainable Communities Strategy (Connect SoCal), adopted September 3, 2020 and the 2019 Federal Transportation Improvement Program (2019 FTIP), adopted September 2018, which addresses regional development and growth forecasts. Although the Connect SoCal and 2019 FTIP are primarily planning documents for future

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transportation projects a key component of these plans are to integrate land use planning with transportation planning that promotes higher density infill development in close proximity to existing transit service. These plans form the basis for the land use and transportation components of the AQMP, which are utilized in the preparation of air quality forecasts and in the consistency analysis included in the AQMP. The Connect SoCal, 2019 FTIP, and AQMP are based on projections originating within the City and County General Plans.

4.4 Local – City of San Jacinto
Local jurisdictions, such as the City of San Jacinto, have the authority and responsibility to reduce air pollution through its police power and decision-making authority. Specifically, the City is responsible for the assessment and mitigation of air emissions resulting from its land use decisions. The City is also responsible for the implementation of transportation control measures as outlined in the AQMPs.

Examples of such measures include bus turnouts, energy-efficient streetlights, and synchronized traffic signals. In accordance with CEQA requirements and the CEQA review process, the City assesses the air quality impacts of new development projects, requires mitigation of potentially significant air quality impacts by conditioning discretionary permits, and monitors and enforces implementation of such mitigation. In accordance with the CEQA requirements, the City does not, however, have the expertise to develop plans, programs, procedures, and methodologies to ensure that air quality within the City and region will meet federal and state standards. Instead, the City relies on the expertise of the SCAQMD and utilizes the SCAQMD CEQA Handbook as the guidance document for the environmental review of plans and development proposals within its jurisdiction. The San Jacinto Municipal Code, December 21, 2021 provides specific requirements for controlling dust from construction projects in Chapter 15.30 that is shown below.

Section 15.30.010 Dust Control Measures.

A. Ground Cover Removal Prohibited. No person shall disturb the topsoil or remove ground cover on any real property within the city limits and thereafter allow the property to remain unoccupied, unused, vacant, or undeveloped, unless reasonable actions are taken to ensure adequate weed abatement and prevention of the manmade generation of dust, including application of soil binders and installation of windbreaks, as described below.

1. Weed Abatement. Discing shall be permitted on any real property, including vacant property and property not actively used for agricultural operations, for the purpose of weed abatement. Discing includes the use of a row or rows of concave circular steel discs to cut and pitch the soil. Weed abatement activities may also be conducted using alternative methods, other than discing.

When weed abatement is undertaken on vacant land, the following must also occur: (1) Property owners are responsible for clearing the property of any debris prior to undertaking weed abatement in order to decrease the risk of fire, and (2) When discing is utilized on any real property for weed abatement purposes, from May 1st through October 31st, active water trucks must follow the discing machinery to help decrease the risk of manmade dust and fire hazards.

B. Application of Soil Binders. For all property used for agricultural operations and inactive construction sites, soil binders shall be applied to exposed soil surfaces to temporarily prevent wind induced erosion. Soil binders are a site-specific, environmentally benign material sprayed onto exposed soil.

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C. Upwind Temporary Windbreaks. All construction sites (whether active or inactive) shall have installed temporary upwind windbreaks, including fabric fences at least four feet above grade in height, and with the bottom of the fence sufficiently anchored to the ground to prevent material from blowing underneath the fence. The aforementioned temporary windbreaks and fabric fences shall be maintained in an upright and functional condition at all times until the state of emergency has been removed.

D. Watering or Chemical Dust Suppression. For all vacant land, paved or unpaved parking lots and road ways, property owners shall be responsible for watering or applying chemical suppressants to suppress dust creation. Unpaved parking lots include graded but unsurfaced areas used for occasional to moderately frequent vehicle parking and other purposes. Chemical suppressants include petroleum resins, asphaltic emulsions, acrylics, adhesives, or any other approved material that are not prohibited for use by the city, the California Environmental Protection Agency, the U.S. Environmental Protection Agency, or any other law, rule, or regulation. Chemical suppressants shall be applied in amounts and rates recommended by the manufacturer and maintained as recommended by the manufacturer. (Ord. 17-04 § 2: Ord. 07-26 § 2)

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5.0 ENERGY CONSERVATION MANAGEMENT
The regulatory setting related to energy conservation is primarily addressed through State and City regulations, which are discussed below.

5.1 State
Energy conservation management in the State was initiated by the 1974 Warren-Alquist State Energy Resources Conservation and Development Act that created the California Energy Resource Conservation and Development Commission (currently named California Energy Commission [CEC]), which was originally tasked with certifying new electric generating plants based on the need for the plant and the suitability of the site of the plant. In 1976 the Warren-Alquist Act was expanded to include new restrictions on nuclear generating plants, that effectively resulted in a moratorium of any new nuclear generating plants in the State. The following details specific regulations adopted by the State in order to reduce the consumption of energy.

California Code of Regulations (CCR) Title 20
On November 3, 1976 the CEC adopted the Regulations for Appliance Efficiency Standards Relating to Refrigerators, Refrigerator-Freezers and Freezers and Air Conditioners, which were the first energyefficiency standards for appliances. The appliance efficiency regulations have been updated several times by the Commission and the most current version is the 2016 Appliance Efficiency Regulations, adopted January 2017 and now includes almost all types of appliances and lamps that use electricity, natural gas as well as plumbing fixtures. The authority for the CEC to control the energy-efficiency of appliances is detailed in California Code of Regulations (CCR), Title 20, Division 2, Chapter 4, Article 4, Sections 1601- 1609.

California Code of Regulations (CCR) Title 24, Part 6
The CEC is also responsible for implementing the CCR Title 24, Part 6: California’s Energy Efficiency Standards for Residential and Nonresidential Buildings (Title 24 Part 6) that were first established in 1978 in response to a legislative mandate to reduce California’s energy consumption. In 2008 the State set an energy-use reduction goal of zero-net-energy use of all new homes by 2020 and the CEC was mandated to meet this goal through revisions to the Title 24, Part 6 regulations.

The Title 24 standards are updated on a three-year schedule and since 2008 the standards have been incrementally moving to the 2020 goal of the zero-net-energy use. The 2022 Title 24 standards are the current standards that went into effect on January 1, 2023.

According to the Title 24 Part 6 Fact Sheet, the CEC estimates that over 30 years the 2022 Title 24 standards will reduce 10 MMTCO2e of GHG emissions, which is equivalent to taking nearly 2.2 million cars off the road for a year. For single-family homes, the CEC estimates that the 2022 Title 24 changes from using natural gas furnaces to electric heat pumps to heat new homes and would reduce net CO2 emissions by 16,230 MTCO2e per year, when compared to the 2019 Title 24 standards, which is equivalent of taking 3,641 gas cars off the road each year. The 2022 Title 24 standards will: (1) Increase onsite renewable energy generation; (2) Increases electric load flexibility to support grid reliability; (3) Reduces emissions from newly constructed buildings; (4) Reduces air pollution for improved public health; and (5) Encourages adoption of environmentally beneficial efficient electric technologies.

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California Code of Regulations (CCR) Title 24, Part 11
CCR Title 24, Part 11: California Green Building Standards (CalGreen Code) was developed in response to continued efforts to reduce GHG emissions associated with energy consumption. The CalGreen Code is also updated every three years and the current version is the 2022 CalGreen Code that went into effect on January 1, 2023.

The CalGreen Code contains requirements for construction site selection; storm water control during construction; construction waste reduction; indoor water use reduction; material selection; natural resource conservation; site irrigation conservation; and more. The code provides for design options allowing the designer to determine how best to achieve compliance for a given site or building condition.

The code also requires building commissioning, which is a process for verifying that all building systems (e.g., heating and cooling equipment and lighting systems) are functioning at their maximum efficiency.

The CalGreen Code provides standards for bicycle parking, carpool/vanpool/electric vehicle spaces, light and glare reduction, grading and paving, energy efficient appliances, renewable energy, graywater systems, water efficient plumbing fixtures, recycling and recycled materials, pollutant controls (including moisture control and indoor air quality), acoustical controls, storm water management, building design, insulation, flooring, and framing, among others. Implementation of the CalGreen Code measures reduces energy consumption and vehicle trips and encourages the use of alternative-fuel vehicles, which reduces pollutant emissions.

Some of the notable changes in the 2022 CalGreen Code over the prior 2019 CalGreen Code for nonresidential development mandatory requirements include repeal of the designated parking spaces for clean air vehicles, an increase in the number of electric vehicle (EV) ready parking spaces and a new requirement for installed Level 2 or DCFC EV charging stations for autos and added EV charging readiness requirements to loading docks, enhanced thermal insulation requirements, and acoustical ceilings are now required.

Executive Order N-79-20
The California Governor issued Executive Order N-79-20 on September 23, 2020 that requires all new passenger cars and trucks and commercial drayage trucks sold in California to be zero-emissions by the year 2035 and all medium- heavy-duty vehicles (commercial trucks) sold in the state to be zero-emission by 2045 for all operations where feasible. Executive Order N-79-20 also requires all off-road vehicles and equipment to transition to 100 percent zero-emission equipment, where feasible by 2035.

Senate Bill 100
Senate Bill 100 (SB 100) was adopted September 2018 and requires that by December 1, 2045 that 100 percent of retail sales of electricity to be generated from renewable or zero-carbon emission sources of electricity. SB 100 supersedes the renewable energy requirements set by SB 350, SB 1078, SB 107, and SB X1-2. SB 100 codified the interim renewable energy thresholds from the prior Bills of: 33 percent by 2020, 40 percent by December 31, 2024, 45 percent by December 31, 2027, and 50 percent by December 31, 2030.

Executive Order B-48-18 and Assembly Bill 2127
The California Governor issued Executive Order B-48-18 on January 26, 2018 that orders all state entities to work with the private sector to put at least five million zero-emission vehicles on California roads by 2030 and to install 200 hydrogen fueling stations and 250,000 electric vehicle chargers by 2025. Currently

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there are approximately 350,000 electric vehicles operating in California, which represents approximately

1.5 percent of the 24 million vehicles total currently operating in California. Implementation of Executive Order B-48-18 would result in approximately 20 percent of all vehicles in California to be zero emission electric vehicles. Assembly Bill 2127 (AB 2127) was codified into statute on September 13, 2018 and requires that the CEC working with CARB prepare biannual assessments of the statewide electric vehicle charging infrastructure needed to support the levels of zero emission vehicle adoption required for the State to meet its goals of putting at least 5 million zero-emission vehicles on California roads by 2030.

Assembly Bill 1109
California Assembly Bill 1109 (AB 1109) was adopted October 2007, also known as the Lighting Efficiency and Toxics Reduction Act, prohibits the manufacturing of lights after January 1, 2010 that contain levels of hazardous substances prohibited by the European Union pursuant to the RoHS Directive. AB 1109 also requires reductions in energy usage for lighting and is structured to reduce lighting electrical consumption by: (1) At least 50 percent reduction from 2007 levels for indoor residential lighting; and (2) At least 25 percent reduction from 2007 levels for indoor commercial and all outdoor lighting by 2018. AB 1109 would reduce GHG emissions through reducing the amount of electricity required to be generated by fossil fuels in California.

Assembly Bill 1493
California Assembly Bill 1493 (also known as the Pavley Bill, in reference to its author Fran Pavley) was enacted on July 22, 2002 and required CARB to develop and adopt regulations that reduce GHGs emitted by passenger vehicles and light duty trucks. In 2004, CARB approved the “Pavley I” regulations limiting the amount of GHGs that may be released from new passenger automobiles that are being phased in between model years 2009 through 2016. These regulations will reduce GHG emissions by 30 percent from 2002 levels by 2016. In June 2009, the EPA granted California the authority to implement GHG emission reduction standards for light duty vehicles, in September 2009, amendments to the Pavley I regulations were adopted by CARB and implementation of the “Pavley I” regulations started in 2009.

The second set of regulations “Pavley II” was developed in 2010, and is being phased in between model years 2017 through 2025 with the goal of reducing GHG emissions by 45 percent by the year 2020 as compared to the 2002 fleet. The Pavley II standards were developed by linking the GHG emissions and formerly separate toxic tailpipe emissions standards previously known as the “LEV III” (third stage of the Low Emission Vehicle standards) into a single regulatory framework. The new rules reduce emissions from gasoline-powered cars as well as promote zero-emissions auto technologies such as electricity and hydrogen, and through increasing the infrastructure for fueling hydrogen vehicles. In 2009, the U.S. EPA granted California the authority to implement the GHG standards for passenger cars, pickup trucks and sport utility vehicles and these GHG emissions standards are currently being implemented nationwide.

The EPA has performed a midterm evaluation of the longer-term standards for model years 2022-2025, and based on the findings of this midterm evaluation, the EPA proposed The Safer Affordable Fuel Efficient (SAFE) Vehicles Proposed Rule for Model Years 2021-2026 that amends the corporate average fuel economy (CAFE) and GHG emissions standards for light vehicles for model years 2021 through 2026. The SAFE Vehicles Rule was published on April 30, 2020 and made effective on June 29, 2020.

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5.2 Local - City of San Jacinto
The applicable energy plan for the proposed project is the Resource Management Element of the San Jacinto General Plan, November 15, 2022. The applicable energy-related goals and policies that are from Resource Management Element of the General Plan are shown below.

Goal RM-5: Energy and Mineral Resources
A community that safely manages its energy and mineral resources Policies
RM-5.1 San Jacinto Power. Continue to make clean, modern, and cost-effective energy options available to individuals who live and work in San Jacinto..

RM-5.2 Compliance with State Legislation. Comply with all state requirements regarding the generation of power and encourage energy providers to investigate the use or expansion of renewable sources of energy.

RM-5.3 Renewable Energy. Promote the development and use of renewable energy resources to reduce dependency on fossil fuels.

RM-5.4 Energy-Efficient Materials. Promote the use of energy-efficient materials, equipment, and design in public and private facilities and infrastructure.

RM-5.5 Energy Conservation. Promote energy conservation and recycling by the public and private sectors.

RM-5.6 Energy Needs. Collaborate with local service providers in determining and meeting the needs of the community for energy in clean, modern, and cost-effective ways.

RM-5.7 Business Community. Support the decisions of the San Jacinto business community as they select and implement the most appropriate, financially feasible, and responsible energy source for their individual operations.

RM-5.8 Public Education. Promote public education programs that advocate for reducing energy consumption, and promote renewable sources of energy.

RM-5.9 Promote Energy Conservation in Existing Building Stock. Promote energy conservation by residents and businesses in existing structures, in close coordination with other agencies and local energy providers, including the SCAQMD and Southern California Edison.

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6.0 GLOBAL CLIMATE CHANGE MANAGEMENT
The regulatory setting related to global climate change is addressed through the efforts of various international, federal, state, regional, and local government agencies. These agencies work jointly, as well as individually, to reduce GHG emissions through legislation, regulations, planning, policy-making, education, and a variety of programs. The agencies responsible for global climate change regulations are discussed below.

6.1 International
In 1988, the United Nations established the IPCC to evaluate the impacts of global climate change and to develop strategies that nations could implement to curtail global climate change. In 1992, the United States joined other countries around the world in signing the United Nations’ Framework Convention on Climate Change (UNFCCC) agreement with the goal of controlling GHG emissions. The parties of the UNFCCC adopted the Kyoto Protocol, which set binding GHG reduction targets for 37 industrialized countries, the objective of reducing their collective GHG emissions by five percent below 1990 levels by 2012. The Kyoto Protocol has been ratified by 182 countries, but has not been ratified by the United States. It should be noted that Japan and Canada opted out of the Kyoto Protocol and the remaining developed countries that ratified the Kyoto Protocol have not met their Kyoto targets. The Kyoto Protocol expired in 2012 and the amendment for the second commitment period from 2013 to 2020 has not yet entered into legal force. The Parties to the Kyoto Protocol negotiated the Paris Agreement in December 2015, agreeing to set a goal of limiting global warming to less than 2 degrees Celsius compared with preindustrial levels. The Paris Agreement has been adopted by 195 nations with 147 ratifying it, including the United States by President Obama, who ratified it by Executive Order on September 3, 2016. On June 1, 2017, President Trump announced that the United States is withdrawing from the Paris Agreement and on January 21, 2021 President Biden signed an executive order rejoining the Paris Agreement.

Additionally, the Montreal Protocol was originally signed in 1987 and substantially amended in 1990 and 1992. The Montreal Protocol stipulates that the production and consumption of compounds that deplete ozone in the stratosphere—CFCs, halons, carbon tetrachloride, and methyl chloroform—were to be phased out, with the first three by the year 2000 and methyl chloroform by 2005.

6.2 Federal – United States Environmental Protection Agency The United States Environmental Protection Agency (EPA) is responsible for implementing federal policy to address global climate change. The Federal government administers a wide array of public-private partnerships to reduce U.S. GHG intensity. These programs focus on energy efficiency, renewable energy, methane, and other non-CO2 gases, agricultural practices and implementation of technologies to achieve GHG reductions. EPA implements several voluntary programs that substantially contribute to the reduction of GHG emissions.

In Massachusetts v. Environmental Protection Agency (Docket No. 05–1120), argued November 29, 2006 and decided April 2, 2007, the U.S. Supreme Court held that not only did the EPA have authority to regulate greenhouse gases, but the EPA's reasons for not regulating this area did not fit the statutory requirements. As such, the U.S. Supreme Court ruled that the EPA should be required to regulate CO2 and other greenhouse gases as pollutants under the federal Clean Air Act (CAA).

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In response to the FY2008 Consolidations Appropriations Act (H.R. 2764; Public Law 110-161), EPA proposed a rule on March 10, 2009 that requires mandatory reporting of GHG emissions from large sources in the United States. On September 22, 2009, the Final Mandatory Reporting of GHG Rule was signed and published in the Federal Register on October 30, 2009. The rule became effective on December 29, 2009. This rule requires suppliers of fossil fuels or industrial GHGs, manufacturers of vehicles and engines, and facilities that emit 25,000 metric tons or more per year of GHG emissions to submit annual reports to EPA.

On December 7, 2009, the EPA Administrator signed two distinct findings under section 202(a) of the Clean Air Act. One is an endangerment finding that finds concentrations of the six GHGs in the atmosphere threaten the public health and welfare of current and future generations. The other is a cause or contribute finding, that finds emissions from new motor vehicles and new motor vehicle engines contribute to the GHG pollution which threatens public health and welfare. These actions did not impose any requirements on industry or other entities, however, since 2009 the EPA has been providing GHG emission standards for vehicles and other stationary sources of GHG emissions that are regulated by the EPA. On September 13, 2013 the EPA Administrator signed 40 CFR Part 60, that limits emissions from new sources to 1,100 pounds of CO2 per mega-watt hour (MWh) for fossil fuel-fired utility boilers and 1,000 pounds of CO2 per MWh for large natural gas-fired combustion units.

On August 3, 2015, the EPA announced the Clean Power Plan, emissions guidelines for U.S. states to follow in developing plans to reduce GHG emissions from existing fossil fuel-fired power plants (Federal Register Vol. 80, No. 205, October 23 2015). On October 11, 2017, the EPA issued a formal proposal to repeal the Clean Power Plan and on June 19, 2019 the EPA replaced the Clean Power Plan with the Affordable Clean Energy rule that is anticipated to lower power sector GHG emissions by 11 million tons by the year 2030.

On April 30, 2020, the EPA and the National Highway Safety Administration published the Final Rule for the Safer Affordable Fuel-Efficient (SAFE) Vehicles Rule for Model Years 2021-2026 Passenger Cars and Light Trucks (SAFE Vehicles Rule). Part One of the Rule revokes California’s authority to set its own GHG emissions standards and zero-emission vehicle mandates in California, which results in one emission standard to be used nationally for all passenger cars and light trucks that is set by the EPA.

6.3 State
The CARB has the primary responsible for implementing state policy to address global climate change, however there are State regulations related to global climate change that affect a variety of State agencies. CARB, which is a part of the California Environmental Protection Agency, is responsible for the coordination and administration of both the federal and state air pollution control programs within California. In this capacity, the CARB conducts research, sets California Ambient Air Quality Standards (CAAQS), compiles emission inventories, develops suggested control measures, provides oversight of local programs, and prepares the SIP. In addition, the CARB establishes emission standards for motor vehicles sold in California, consumer products (e.g. hairspray, aerosol paints, and barbeque lighter fluid), and various types of commercial equipment. It also sets fuel specifications to further reduce vehicular emissions.

In 2008, CARB approved a Climate Change Scoping Plan that proposes a “comprehensive set of actions designed to reduce overall carbon GHG emissions in California, improve our environment, reduce our dependence on oil, diversify our energy sources, save energy, create new jobs, and enhance public health” (CARB 2008). The Climate Change Scoping Plan has a range of GHG reduction actions which include direct

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regulations; alternative compliance mechanisms; monetary and non-monetary incentives; voluntary actions; market-based mechanisms such as a cap-and-trade system. In 2014, CARB approved the First Update to the Climate Change Scoping Plan (CARB, 2014) that identifies additional strategies moving beyond the 2020 targets to the year 2050. On December 14, 2017 CARB adopted the California’s 2017 Climate Change Scoping Plan, November 2017 (CARB, 2017) that provides specific statewide policies and measures to achieve the 2030 GHG reduction target of 40 percent below 1990 levels by 2030 and the aspirational 2050 GHG reduction target of 80 percent below 1990 levels by 2050. In addition, the State has passed the following laws directing CARB to develop actions to reduce GHG emissions, which are listed below in chronological order, with the most current first.

Executive Order B-55-18 and Assembly Bill 1279
The California Governor issued Executive Order B-55-18 in September 2018 that establishes a new statewide goal to achieve carbon neutrality as soon as possible, but no later than 2045. This executive order directs the CARB to work with relevant State agencies to develop a framework for implementation and accounting that tracks progress toward this goal as well as ensuring future scoping plans identify and recommend measures to achieve this carbon neutrality goal. Assembly Bill 1279 was passed by the legislature in September 2022 that codifies the carbon neutrality targets provided in Executive Order B55-18. The 2022 Scoping Plan for Achieving Carbon Neutrality, adopted by CARB on December 16, 2022, was prepared in order to meet the carbon neutrality goal targets developed in Executive Order B-55-18 and codified in Assembly Bill 1279.

Executive Order N-79-20
EO N-79-20 establish targets for when all new vehicles and equipment are zero-emission and is described in more detail above in Section 5.1 under Energy Conservation Management.

California Code of Regulations (CCR) Title 24, Part 6
The Title 24 Part 6 standards have been developed by the CEC primarily for energy conservation and is described in more detail above in Section 5.1 under Energy Conservation Management. It should be noted that implementation of the Title 24 Part 6 building standards would also reduce GHG emissions, since as detailed above in Section 3.3 Greenhouse Gas Emissions Inventory, energy use for residential and commercial buildings creates 9.7 percent of the GHG emissions in the State.

California Code of Regulations (CCR) Title 24, Part 11
The CalGreen Building standards have been developed by the CEC primarily for energy conservation and is described in more detail above in Section 5.1 under Energy Conservation Management. It should be noted that implementation of the CalGreen Building standards would also reduce GHG emissions, since as detailed above under Title 23, Part 6, energy usage from buildings creates 9.7 percent of GHG emissions in the State.

Senate Bill 100
SB 100 requires that by December 1, 2045 that 100 percent of retail sales of electricity to be generated from renewable or zero-carbon emission sources of electricity and is described in more detail above in Section 5.1 under Energy Conservation Management.

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Executive Order B-48-18 and Assembly Bill 2127
Executive Order B-48-18 and AB 2127 provides measures to put at least five million zero-emission vehicles on California roads by 2030 and to install 200 hydrogen fueling stations and 250,000 electric vehicle chargers by 2025 and is described in more detail above in Section 5.1 under Energy Conservation Management.

Executive Order B-30-15, Senate Bill 32 and Assembly Bill 197 The California Governor issued Executive Order B-30-15 on April 29, 2015 that aims to reduce California’s GHG emissions 40 percent below 1990 levels by 2030. This executive order aligns California’s GHG reduction targets with those of other international governments, such as the European Union that set the same target for 2030 in October, 2014. This target will make it possible to reach the ultimate goal of reducing GHG emissions 80 percent under 1990 levels by 2050 that is based on scientifically established levels needed in the U.S.A to limit global warming below 2 degrees Celsius – the warming threshold at which scientists say there will likely be major climate disruptions such as super droughts and rising sea levels. Assembly Bill 197 (AB 197) (September 8, 2016) and Senate Bill 32 (SB 32) (September 8, 2016) codified into statute the GHG emissions reduction targets of at least 40 percent below 1990 levels by 2030 as detailed in Executive Order B-30-15. AB 197 also requires additional GHG emissions reporting that is broken down to sub-county levels and requires CARB to consider the social costs of emissions impacting disadvantaged communities.

Executive Order B-29-15
The California Governor issued Executive Order B-29-15 on April 1, 2015 and directed the State Water Resources Control Board to impose restrictions to achieve a statewide 25% reduction in urban water usage and directed the Department of Water Resources to replace 50 million square feet of lawn with drought tolerant landscaping through an update to the State’s Model Water Efficient Landscape Ordinance. The Ordinance also requires installation of more efficient irrigation systems, promotion of greywater usage and onsite stormwater capture, and limits the turf planted in new residential landscapes to 25 percent of the total area and restricts turf from being planted in median strips or in parkways unless the parkway is next to a parking strip and a flat surface is required to enter and exit vehicles. Executive Order B-29-15 would reduce GHG emissions associated with the energy used to transport and filter water.

Assembly Bill 341 and Senate Bills 939 and 1374
Senate Bill 939 (SB 939) requires that each jurisdiction in California to divert at least 50 percent of its waste away from landfills, whether through waste reduction, recycling or other means. Senate Bill 1374 (SB 1374) requires the California Integrated Waste Management Board to adopt a model ordinance by March 1, 2004 suitable for adoption by any local agency to require 50 to 75 percent diversion of construction and demolition of waste materials from landfills. Assembly Bill 341 (AB 341) was adopted in 2011 and builds upon the waste reduction measures of SB 939 and 1374, and sets a new target of a 75 percent reduction in solid waste generated by the year 2020.

Senate Bill 375
Senate Bill 375 (SB 375) was adopted September 2008 in order to support the State’s climate action goals to reduce GHG emissions through coordinated regional transportation planning efforts, regional GHG emission reduction targets, and land use and housing allocation. SB 375 requires CARB to set regional targets for GHG emissions reductions from passenger vehicle use. In 2010, CARB established targets for 2020 and 2035 for each Metropolitan Planning Organizations (MPO) within the State. It was up to each

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MPO to adopt a sustainable communities strategy (SCS) that will prescribe land use allocation in that MPOs Regional Transportation Plan (RTP) to meet CARB’s 2020 and 2035 GHG emission reduction targets.

These reduction targets are required to be updated every eight years and the most current targets are detailed at: https://ww2.arb.ca.gov/our-work/programs/sustainable-communities-program/regionalplan-targets, which provides GHG emissions reduction targets for SCAG of 8 percent by 2020 and 19 percent by 2035.

The Connect SoCal (SCAG, 2020) provides a 2035 GHG emission reduction target of 19 percent reduction over the 2005 per capita emissions levels. The Connect SoCal include new initiatives of land use, transportation and technology to meet the 2035 new 19 percent GHG emission reduction target for 2035.

CARB is also charged with reviewing SCAG’s RTP/SCS for consistency with its assigned targets.

City and County land use policies, including General Plans, are not required to be consistent with the RTP and associated SCS. However, new provisions of CEQA incentivize, through streamlining and other provisions, qualified projects that are consistent with an approved SCS and categorized as “transit priority projects.”
Assembly Bill 1109
AB 1109 requires reductions in energy usage for lighting and is described in more detail above in Section

5.1 under Energy Conservation Management.

Executive Order S-1-07
Executive Order S-1-07 was issued in 2007 and proclaims that the transportation sector is the main source of GHG emissions in the State, since it generates more than 40 percent of the State’s GHG emissions. It establishes a goal to reduce the carbon intensity of transportation fuels sold in the State by at least ten percent by 2020. This Executive Order also directs CARB to determine whether this Low Carbon Fuel Standard (LCFS) could be adopted as a discrete early-action measure as part of the effort to meet the mandates in AB 32.

In 2009 CARB approved the proposed regulation to implement the LCFS. The standard was challenged in the courts, but has been in effect since 2011 and was re-approved by the CARB in 2015. The LCFS is anticipated to reduce GHG emissions by about 16 MMT per year by 2020. The LCFS is designed to provide a framework that uses market mechanisms to spur the steady introduction of lower carbon fuels. The framework establishes performance standards that fuel producers and importers must meet annually.

Reformulated gasoline mixed with corn-derived ethanol and low-sulfur diesel fuel represent the baseline fuels. Lower carbon fuels may be ethanol, biodiesel, renewable diesel, or blends of these fuels with gasoline or diesel. Compressed natural gas and liquefied natural gas also may be low-carbon fuels.

Hydrogen and electricity, when used in fuel cells or electric vehicles, are also considered as low-carbon fuels.

Senate Bill 97
Senate Bill 97 (SB 97) was adopted August 2007 and acknowledges that climate change is a prominent environmental issue that requires analysis under CEQA. SB 97 directed the Governor’s Office of Planning and Research (OPR), which is part of the State Natural Resources Agency, to prepare, develop, and transmit to CARB guidelines for the feasible mitigation of GHG emissions or the effects of GHG emissions, as required by CEQA, by July 1, 2009. The Natural Resources Agency was required to certify and adopt those guidelines by January 1, 2010.

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Pursuant to the requirements of SB 97 as stated above, on December 30, 2009 the Natural Resources Agency adopted amendments to the State CEQA guidelines that addresses GHG emissions. The CEQA Guidelines Amendments changed 14 sections of the CEQA Guidelines and incorporated GHG language throughout the Guidelines. However, no GHG emissions thresholds of significance were provided and no specific mitigation measures were identified. The GHG emission reduction amendments went into effect on March 18, 2010 and are summarized below:
• Climate Action Plans and other greenhouse gas reduction plans can be used to determine whether a project has significant impacts, based upon its compliance with the plan. • Local governments are encouraged to quantify the GHG emissions of proposed projects, noting that they have the freedom to select the models and methodologies that best meet their needs and circumstances. The section also recommends consideration of several qualitative factors that may be used in the determination of significance, such as the extent to which the given project complies with state, regional, or local GHG reduction plans and policies. OPR does not set or dictate specific thresholds of significance. Consistent with existing CEQA Guidelines, OPR encourages local governments to develop and publish their own thresholds of significance for GHG impacts assessment.
• When creating their own thresholds of significance, local governments may consider the thresholds of significance adopted or recommended by other public agencies, or recommended by experts.
• New amendments include guidelines for determining methods to mitigate the effects of GHG emissions in Appendix F of the CEQA Guidelines.
• OPR is clear to state that “to qualify as mitigation, specific measures from an existing plan must be identified and incorporated into the project; general compliance with a plan, by itself, is not mitigation.”
• OPR’s emphasizes the advantages of analyzing GHG impacts on an institutional, programmatic level. OPR therefore approves tiering of environmental analyses and highlights some benefits of such an approach.
• Environmental impact reports must specifically consider a project's energy use and energy efficiency potential.

Assembly Bill 32
In 2006, the California State Legislature adopted AB 32, the California Global Warming Solutions Act of 2006. AB 32 requires CARB, to adopt rules and regulations that would achieve GHG emissions equivalent to statewide levels in 1990 by 2020 through an enforceable statewide emission cap which will be phased in starting in 2012. Emission reductions shall include carbon sequestration projects that would remove carbon from the atmosphere and utilize best management practices that are technologically feasible and cost effective.

In 2007 CARB released the calculated Year 1990 GHG emissions of 431 MMTCO2e. The 2020 target of 431 MMTCO2e requires the reduction of 78 MMTCO2e, or approximately 16 percent from the State’s projected 2020 business as usual emissions of 509 MMTCO2e (CARB, 2014). Under AB 32, CARB was required to adopt regulations by January 1, 2011 to achieve reductions in GHGs to meet the 1990 cap by 2020. Early measures CARB took to lower GHG emissions included requiring operators of the largest industrial facilities that emit 25,000 metric tons of CO2 in a calendar year to submit verification of GHG emissions by

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December 1, 2010. The CARB Board also approved nine discrete early action measures that include regulations affecting landfills, motor vehicle fuels, refrigerants in cars, port operations and other sources, all of which became enforceable on or before January 1, 2010.

CARB’s Scoping Plan that was adopted in 2009, proposes a variety of measures including: strengthening energy efficiency and building standards; targeted fees on water and energy use; a market-based capand-trade system; achieving a 33 percent renewable energy mix; and a fee regulation to fund the program.

The 2014 update to the Scoping Plan identifies strategies moving beyond the 2020 targets to the year 2050.

The Cap and Trade Program established under the Scoping Plan sets a statewide limit on sources responsible for 85 percent of California’s GHG emissions, and has established a market for long-term investment in energy efficiency and cleaner fuels since 2012.

Assembly Bill 1493
AB 1493 or the Pavley Bill sets tailpipe GHG emissions limits for passenger vehicles in California as well as fuel economy standards and is described in more detail above in Section 5.1 under Energy Conservation Management.

6.4 Regional – Southern California
The SCAQMD is the agency principally responsible for comprehensive air pollution control in the Air Basin.

To that end, as a regional agency, the SCAQMD works directly with SCAG, county transportation commissions, and local governments and cooperates actively with all federal and state agencies.

South Coast Air Quality Management District
SCAQMD develops rules and regulations, establishes permitting requirements for stationary sources, inspects emission sources, and enforces such measures through educational programs or fines, when necessary. SCAQMD is directly responsible for reducing emissions from stationary, mobile, and indirect sources. The SCAQMD is also responsible for GHG emissions for projects where it is the lead agency.

However, for other projects in the Air Basin where it is not the lead agency, it is limited to providing resources to other lead agencies in order to assist them in determining GHG emission thresholds and GHG reduction measures. In order to assist local agencies with direction on GHG emissions, the SCAQMD organized a working group, which is described below.

SCAQMD Working Group
Since neither CARB nor the OPR has developed GHG emissions threshold, the SCAQMD formed a Working Group to develop significance thresholds related to GHG emissions. At the September 28, 2010 Working Group meeting, the SCAQMD released its most current version of the draft GHG emissions thresholds, which recommends a tiered approach that either provides a quantitative annual thresholds of 3,500 MTCO2e for residential uses, 1,400 MTCO2e for commercial uses, and 3,000 MTCO2e for mixed uses. An alternative annual threshold of 3,000 MTCO2e for all land use types is also proposed.

Southern California Association of Governments
The SCAG is the regional planning agency for Los Angeles, Orange, Ventura, Riverside, San Bernardino, and Imperial Counties and addresses regional issues relating to transportation, the economy, community development and the environment. SCAG is the federally designated Metropolitan Planning Organization

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(MPO) for the majority of the southern California region and is the largest MPO in the nation. With respect to air quality planning, SCAG has prepared the Connect SoCal and 2019 FTIP addresses regional development and growth forecasts. Although the Connect SoCal and 2019 FTIP are primarily planning documents for future transportation projects a key component of these plans are to integrate land use planning with transportation planning that promotes higher density infill development in close proximity to existing transit service. These plans form the basis for the land use and transportation components of the AQMP, which are utilized in the preparation of air quality forecasts and in the consistency analysis included in the AQMP. The Connect SoCal, 2019 FTIP, and AQMP are based on projections originating within the City and County General Plans.

6.5 Local – City of San Jacinto
Local jurisdictions, such as the City of San Jacinto, have the authority and responsibility to reduce GHG emissions through their police power and decision-making authority. Specifically, the City is responsible for the assessment and mitigation of GHG emissions resulting from its land use decisions. In accordance with CEQA requirements and the CEQA review process, the City assesses the global climate change potential of new development projects, requires mitigation of potentially significant global climate change impacts by conditioning discretionary permits, and monitors and enforces implementation of such mitigation.

The City of San Jacinto participated with the Western Riverside Council of Governments (WRCOG), regional planning efforts in the adoption of the Subregional Climate Action Plan (Subregional CAP), September 2014. The Subregional CAP was developed in order to meet the requirements of AB 32 and SB 375 and includes a regional GHG emissions inventory, summarizes actions that participating jurisdictions have selected to reduce GHG emissions, and provides specific reduction goals for each participating jurisdiction.

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7.0 ATMOSPHERIC SETTING

7.1 South Coast Air Basin
The project site is located in the western portion of Riverside County, which is part of the South Coast Air Basin (Air Basin) that includes the non-desert portions of Riverside, San Bernardino, and Los Angeles Counties and all of Orange County. The Air Basin is located on a coastal plain with connecting broad valleys and low hills to the east. Regionally, the Air Basin is bounded by the Pacific Ocean to the southwest and high mountains to the east forming the inland perimeter.

7.2 Local Climate
The climate of western Riverside County, technically called an interior valley subclimate of the Southern California’s Mediterranean-type climate, is characterized by hot dry summers, mild moist winters with infrequent rainfall, moderate afternoon breezes, and generally fair weather. Occasional periods of strong Santa Ana winds and winter storms interrupt the otherwise mild weather pattern. The clouds and fog that form along the area’s coastline rarely extend as far inland as western Riverside County. When morning clouds and fog form, they typically burn off quickly after sunrise. The most important weather pattern from an air quality perspective is associated with the warm season airflow across the densely populated areas located west of the project site. This airflow brings polluted air into western Riverside County late in the afternoon. This transport pattern creates unhealthful air quality that may extend to the project site particularly during the summer months.

Winds are an important parameter in characterizing the air quality environment of a project site because they both determine the regional pattern of air pollution transport and control the rate of dispersion near a source. Daytime winds in western Riverside County are usually light breezes from off the coast as air moves regionally onshore from the cool Pacific Ocean to the warm Mojave Desert interior of Southern California. These winds allow for good local mixing, but as discussed above, these coastal winds carry significant amounts of industrial and automobile air pollutants from the densely urbanized western portion of the Air Basin into the interior valleys which become trapped by the mountains that border the eastern and northern edges of the Air Basin.

In the summer, strong temperature inversions may occur that limit the vertical depth through which air pollution can be dispersed. Air pollutants concentrate because they cannot rise through the inversion layer and disperse. These inversions are more common and persistent during the summer months. Over time, sunlight produces photochemical reactions within this inversion layer that creates ozone, a particularly harmful air pollutant. Occasionally, strong thermal convections occur which allows the air pollutants to rise high enough to pass over the mountains and ultimately dilute the smog cloud.

In the winter, light nocturnal winds result mainly from the drainage of cool air off of the mountains toward the valley floor while the air aloft over the valley remains warm. This forms a type of inversion known as a radiation inversion. Such winds are characterized by stagnation and poor local mixing and trap pollutants such as automobile exhaust near their source. While these inversions may lead to air pollution “hot spots” in heavily developed coastal areas of the Air Basin, there is not enough traffic in inland valleys to cause any winter air pollution problems. Despite light wind conditions, especially at night and in the early morning, winter is generally a period of good air quality in the project vicinity.

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McLeish Ranch Residential Project, Air Quality, Energy, and GHG Emissions Impact Analysis City of San Jacinto

The temperature and precipitation levels for the San Jacinto Monitoring Station is shown below in Table E. Table E shows that July is typically the warmest month and January is typically the coolest month.

Rainfall in the project area varies considerably in both time and space. Almost all the annual rainfall comes from the fringes of mid-latitude storms from late November to early April, with summers being almost completely dry.

Table E – Monthly Climate Data
Month
Average Maximum
Temperature (°F)
Average Minimum
Temperature (°F)
Average Total Precipitation
(inches)
January 65.0 34.7 2.44
February 66.9 36.9 2.33
March 69.6 39.4 2.28
April 75.1 43.1 1.18
May 81.3 47.8 0.38
June 90.4 52.0 0.05
July 98.1 57.0 0.09
August 97.4 57.2 0.24
September 92.6 53.0 0.34
October 83.2 46.3 0.62
November 74.1 39.3 1.15
December 66.6 35.1 1.82
Annual 80.0 45.2 12.93
Source: https://wrcc.dri.edu/cgi-bin/cliMAIN.pl?ca7810

7.3 Monitored Local Air Quality
The air quality at any site is dependent on the regional air quality and local pollutant sources. Regional air quality is determined by the release of pollutants throughout the Air Basin. Estimates of the existing emissions in the Air Basin provided in the 2012 AQMP, indicate that collectively, mobile sources account for 59 percent of the VOC, 88 percent of the NOx emissions and 40 percent of directly emitted PM2.5, with another 10 percent of PM2.5 from road dust. The 2016 AQMP found that since 2012 AQMP projections were made stationary source VOC emissions have decreased by approximately 12 percent, but mobile VOC emissions have increased by 5 percent. The percentage of NOx emissions remain unchanged between the 2012 and 2016 projections.

SCAQMD has divided the Air Basin into 38 air-monitoring areas. The project site is located in Air Monitoring Area 28, which covers the Hemet and San Jacinto Valley. The nearest air monitoring station to the project site is the Banning Airport Monitoring Station (Banning Station), which is located approximately 11 miles northeast of the project site at 200 S Hathaway Street, Banning. However, it should be noted that due to the air monitoring station’s distance from the project site, recorded air pollution levels at the Banning Station reflect with varying degrees of accuracy, local air quality conditions at the project site. It should also be noted that CO measurements have not been provided, since CO is currently in attainment in the Air Basin and monitoring of CO within the Air Basin ended on March 31, 2013.

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McLeish Ranch Residential Project, Air Quality, Energy, and GHG Emissions Impact Analysis City of San Jacinto

The monitoring data from the Banning Station is presented in Table F and shows the most recent three years of monitoring data from CARB. Table F shows that ozone and particulate matter (PM10 and PM2.5) are the air pollutants of primary concern in the project area, which are detailed below.

Table F – Local Area Air Quality Monitoring Summary
Pollutant (Standard)
Year1
2020 2021 2022
Ozone:

Maximum 1-Hour Concentration (ppm) 0.150 0.139 0.116
Days > CAAQS (0.09 ppm) 29 41 30
Maximum 8-Hour Concentration (ppm) 0.115 0.116 0.100
Days > NAAQS (0.070 ppm) 68 80 56
Days > CAAQs (0.070 ppm) 71 82 59
Nitrogen Dioxide:

Maximum 1-Hour Concentration (ppb) 51.1 56.8 51.5
Days > NAAQS (100 ppb) 0 0 0
Days > CAAQS (180 ppb) 0 0 0
Inhalable Particulates (PM10):

Maximum 24-Hour National Measurement (ug/m3) 69.3 48.6 52.4 Days > NAAQS (150 ug/m3) 0 0 0
Days > CAAQS (50 ug/m3) 1 0 0
Annual Arithmetic Mean (AAM) (ug/m3) 21.2 21.2 22.5
Annual > NAAQS (50 ug/m3) No No No
Annual > CAAQS (20 ug/m3) Yes Yes Yes
Ultra-Fine Particulates (PM2.5):

Maximum 24-Hour State Measurement (ug/m3) 46.7 40.9 37.9 Days > NAAQS (35 ug/m3) 3 1 1
Annual Arithmetic Mean (AAM) (ug/m3) 10.5 11.7 9.4
Annual > NAAQS and CAAQS (12 ug/m3) No No No
Notes: Exceedances are listed in bold. CAAQS = California Ambient Air Quality Standard; NAAQS = National Ambient Air Quality Standard; ppm = parts per million; ppb = parts per billion; ND = no data available. 1 Data obtained from the Banning Station.

Source: http://www.arb.ca.gov/adam/
Ozone
During the last three years, the State 1-hour concentration standard for ozone has been exceeded between 29 and 41 days each year at the Banning Station. The State 8-hour ozone standard has been exceeded between 59 and 82 days each year over the last three years at the Banning Station. The Federal 8-hour ozone standard has been exceeded between 56 and 80 days each year over the last three years at the Banning Station.

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Ozone is a secondary pollutant as it is not directly emitted. Ozone is the result of chemical reactions between other pollutants, most importantly hydrocarbons and NO2, which occur only in the presence of bright sunlight. Pollutants emitted from upwind cities react during transport downwind to produce the oxidant concentrations experienced in the area. Many areas of Southern California contribute to the ozone levels experienced at this monitoring station, with the more significant areas being those directly upwind.

Nitrogen Dioxide
The Banning Station did not record an exceedance of either the Federal or State 1-hour NO2 standards for the last three years.

Particulate Matter
The State 24-hour concentration standard for PM10 has been exceeded for one day in 2020 over the past three years at the Banning Station. Over the past three years the Federal 24-hour standard for PM10 has not been exceeded at the Banning Station. The annual PM10 concentration at the Banning Station has exceeded the State standard for the past three years and has not exceeded the Federal standard for the past three years.

Over the past three years the federal 24-hour concentration standard for PM2.5 has been exceeded between 1 and 3 days each year over the past three years at the Banning Station. The annual PM2.5 concentrations at the Banning Station has not exceeded either the State or Federal standards for the past three years. There does not appear to be a noticeable trend for PM10 or PM2.5 in either maximum particulate concentrations or days of exceedances in the area. Particulate levels in the area are due to natural sources, grading operations, and motor vehicles.

According to the EPA, some people are much more sensitive than others to breathing fine particles (PM10 and PM2.5). People with influenza, chronic respiratory and cardiovascular diseases, and the elderly may suffer worsening illness and premature death due to breathing these fine particles. People with bronchitis can expect aggravated symptoms from breathing in fine particles. Children may experience decline in lung function due to breathing in PM10 and PM2.5. Other groups considered sensitive are smokers and people who cannot breathe well through their noses. Exercising athletes are also considered sensitive, because many breathe through their mouths during exercise.

7.4 Toxic Air Contaminant Levels
In order to determine the Air Basin-wide risks associated with major airborne carcinogens, the SCAQMD conducted the Multiple Air Toxics Exposure Study (MATES) studies. According to the MATES V study (SCAQMD, 2021), the project site has an estimated cancer risk of 243 per million persons chance of cancer.

In comparison, the average cancer risk for the Air Basin is 455 per million persons. The MATES V study monitored air toxins between May 1, 2018 to April 30, 2019, found that cancer risk from air toxics has declined significantly in the Air Basin with a 40 percent decrease in cancer risk since the monitoring for the MATES IV study that occurred between July 1, 2012 and June 30, 2013 and an 84 percent decrease in cancer risk since the monitoring for the MATES II study that occurred between April 1, 1998 and March 31, 1999.

The MATES V study also analyzed impacts specific to the communities experiencing environmental injustices (EJ communities) that were evaluated using the Senate Bill 535 definition of disadvantaged

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communities, which found that between MATES IV and MATES V, the cancer risk from air toxics decreased by 57 percent in EJ communities overall, compared to a 53 percent reduction in non-EJ communities.

In order to provide a perspective of risk, it is often estimated that the incidence in cancer over a lifetime for the U.S. population ranges between 1 in 3 to 4 and 1 in 3, or a risk of about 300,000 per million persons.

The MATES-III study referenced a Harvard Report on Cancer Prevention, which estimated that of cancers associated with known risk factors, about 30 percent were related to tobacco, about 30 percent were related to diet and obesity, and about 2 percent were associated with environmental pollution related exposures that includes hazardous air pollutants.

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McLeish Ranch Residential Project, Air Quality, Energy, and GHG Emissions Impact Analysis City of San Jacinto

8.0 MODELING PARAMETERS AND ASSUMPTIONS

8.1 CalEEMod Model Input Parameters
The criteria air pollution and GHG emissions impacts created by the proposed project have been analyzed through use of the California Emissions Estimator Model (CalEEMod) Version 2022.1.1.19. CalEEMod is a computer model published by the California Air Pollution Control Officers Association (CAPCOA) for estimating air pollutant and GHG emissions. The CalEEMod program uses the EMFAC2021 computer program to calculate the emission rates specific for the South Coast Air Basin portion of Riverside County for employee, vendor and haul truck vehicle trips and the OFFROAD2011 computer program to calculate emission rates for heavy equipment operations. EMFAC2021 and OFFROAD2011 are computer programs generated by CARB that calculates composite emission rates for vehicles. Emission rates are reported by the program in grams per trip and grams per mile or grams per running hour.

The project characteristics in the CalEEMod model were set to a project location of the South Coast Air Basin portion of Riverside County, utility companies of Southern California Edison and Southern California Gas (with 2027 forecast factors) and a project opening year of 2027.

Land Use Parameters
The proposed project would consist of development of 424 single-family homes, with eight open space lots that would be utilized as park space and a detention basin, and an onsite roadway system that includes a proposed extension of De Anza Drive through the project site. According to the project applicant, the proposed homes would range in size between 2,100 square feet and 2,600 square feet and based on the ratio of each housing product that will be built on the project site, the average house size was found to 2,365 square feet or a total of 1,002,915 square feet of building space that was entered into the CalEEMod model. It should be noted that the CalEEMod default size for a single-family home is 1,800 square feet, so the proposed homes are 31 percent larger than the default single-family home size in CalEEMod. The proposed project’s land use parameters that were entered into the CalEEMod model are shown in Table G.

Table G – CalEEMod Land Use Parameters
Proposed Land Use
Land Use Subtype in
CalEEMod
Land Use
Size1
Lot
Acreage2
Building3
(sq ft)
Landscaped
Area4 (sq ft)
Single-Family Homes Single Family Housing 424 DU 46.33 1,002,915 201,826 Open Space Lots City Park 11 AC 11.15 808 48,589
Onsite Roads and Driveways Other Asphalt Surfaces 39 AC 38.51 -- 167,760 Notes:
1 DU = Dwelling unit; AC = Acre. 2 Lot acreage calculated based on the total project site of 96 gross acres. 3 Building square feet represent area where architectural coatings will be applied. Single-family homes square footage obtained from project applicant. 4 Landscaped area based on 10 percent of lot acreage for each land use.

Construction Parameters
Construction of the proposed project is anticipated to start around April 2024 and the CalEEMod default construction timing was utilized that found that construction would be completed in approximately six years. The construction-related GHG emissions were based on a 30-year amortization rate as recommended in the SCAQMD GHG Working Group meeting on November 19, 2009. The phases of

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construction activities that have been analyzed are detailed below and include: 1) Site Preparation, 2) Grading, 3) Building construction, 4) Paving, and 5) Application of architectural coatings.

CalEEMod provides the selection of “mitigation” to account for project conditions that would result in less emissions than a project without these conditions, however it should be noted that this “mitigation” may represent regulatory requirements. This includes the required to adherence to SCAQMD Rule 403 and San Jacinto Municipal Code Section 15.30.010, which requires that the Best Available Control Measures be utilized to reduce fugitive dust emissions and was modeled in CalEEMod by selection of mitigation of water all exposed areas three times per day.

Site Preparation
The site preparation phase would consist of removing any vegetation, tree stumps, and stones onsite prior to grading. The site preparation was modeled as starting in April 2024 and occurring over 60 workdays which is based on the CalEEMod default timing. The site preparation activities would generate an average of 17.5 worker trips per day. In order to account for water truck emissions, one onsite truck trip per day with a one-mile length was added to the site preparation phase. The onsite equipment would consist of three rubber-tired dozers, and four crawler tractors, which replaced the CalEEMod default value of four of either tractors, loaders, or backhoes, in order to provide a more conservative analysis.

Grading
The grading phase was modeled as starting after completion of the site preparation phase and was modeled as occurring over 155 workdays, which is based on the CalEEMod default timing. It is anticipated that the grading would likely be balanced, which would result in no dirt being imported or exported from the project site. The onsite equipment would consist of two excavators, one grader, one rubber-tired dozer, two scrapers, and two crawler tractors, which replaced the CalEEMod default value of two of either tractors, loaders, or backhoes, in order to provide a more conservative analysis. The grading activities would generate an average of 20 automobile trips per day for the workers. In order to account for water truck emissions, one onsite truck trip per day with a one-mile length was added to the site preparation phase.

Building Construction
The building construction would occur after the completion of the grading phase and was modeled as occurring over 1,550 workdays (4.2 years), which is based on the CalEEMod default timing. The building construction phase would generate an average of 153 worker trips and 45.3 vendor trips per day. The onsite equipment would consist of the simultaneous operation of one crane, three forklifts, one generator, one welder, and three of either tractors, loaders, or backhoes, which is based on the CalEEMod default equipment mix.

Paving
The paving phase would consist of paving the onsite roads and driveways. The paving phase was modeled as occurring after completion of the building construction phase and occurring over 110 workdays, which is based on the CalEEMod default timing. The paving phase would generate 15 worker trips per day. The onsite equipment would consist of the simultaneous operation of two pavers, two paving equipment, and two rollers, which is based on the CalEEMod default equipment mix.

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Architectural Coating
The application of architectural coatings was modeled as occurring after completion of the paving phase and occurring over 110 workdays, which is based on the CalEEMod default timing. The architectural coating phase was modeled based on covering 2,030,903 square feet of residential interior area, 676,968 square feet of residential exterior area, 600 square feet of non-residential interior area, 200 square feet of non-residential exterior area, and 100,650 square feet of parking and roadway area. The architectural coating phase would generate an average of 30.5 worker trips per day. The onsite equipment would consist of one air compressor, which is based on the CalEEMod default equipment mix.

Operational Emissions Modeling
The operations-related criteria air pollutant emissions and GHG emissions created by the proposed project have been analyzed through use of the CalEEMod model. The proposed project was analyzed in the CalEEMod model based on the land use parameters provided above and the parameters entered for each operational source is described below.

Mobile Sources
Mobile sources include emissions the additional vehicle miles generated from the proposed project. The weekday daily vehicle trip rates associated with the proposed project have been set to match the 9.43 weekday daily trip rate per home from the McLeish Ranch Residential Project Traffic Impact Study (Traffic Study), prepared by RK Engineering Group, Inc., June 1, 2022. Since the Traffic Study did not provide Saturday or Sunday daily trip rates for the proposed project, the default CalEEMod daily trip generation rates of: 9.54 per single-family home on Saturdays; and 8.55 per single-family home on Sundays were utilized. Since the proposed open space area would be primarily utilized by the residents of the project and would not encourage people to drive to this open space area, the trip generation rate for the open space area was set to zero.

Area Sources
Area sources include emissions from consumer products, landscape equipment, hearths and architectural coatings. The area source emissions were based on the on-going use of the proposed project in the CalEEMod model. According to the proposed project plans, no woodstoves or fireplaces will be constructed on the project site, as such woodstoves and fireplaces were set to zero in CalEEMod. No other changes were made to the default area source parameters in the CalEEMod model.

Energy Usage
Energy usage includes emissions from electricity and natural gas used onsite. The energy usage was based on the ongoing use of the proposed project in the CalEEMod Model. No changes were made to the default energy usage parameters in the CalEEMod model.

The 2019 Title 24, Part 6 building energy efficiency standards went into effect January 1, 2020 and have been developed so that the average new home built in California will have zero-net-energy use. The 2019 Title 24 Part 6 standards also now require all new homes to install rooftop photovoltaic systems based on Section 150.1-C from: https://www.energy.ca.gov/2018publications/CEC-400-2018-020/CEC-400-2018- 020-CMF.pdf
It should be noted that the Title 24 Report for the proposed project has not yet been prepared so the exact number of solar panels to be installed on the project site has not yet been calculated. However,

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Exception 3 to Section 150.1-c states that all two-story homes shall provide a minimum of 1.0 Watt DC of solar panels per square foot of conditioned floor area. According to the project applicant, the 424 proposed single-family homes would have a total of approximately 833,315 square feet of conditioned floor area building space. This would require the installation of 833.3 kilowatts of photovoltaic solar panels. Since the CalEEMod model requires that the total kilowatt-hours per year generated by the solar panels be entered into the model, the 833.3 kilowatts of solar panels was multiplied by 8 hours, to provide a conservative average hours per day of sunlight that the solar panels will generate electricity and then divided by 1.2 to account for the loss associated with converting the direct current (DC) power from the solar panels to the alternating current (AC) power on the electrical grid and then multiplying by 365 days, which resulted in the proposed solar panels generating 2,027,732 kilowatt-hours per year that was entered into the CalEEMod model.

Solid Waste
Waste includes the GHG emissions associated with the processing of waste from the proposed project as well as the GHG emissions from the waste once it is interred into a landfill. The analysis was based on the default CalEEMod waste generation rate of 389 tons of solid waste per year from the proposed project.

No changes were made to the default solid waste parameters or mitigation measures in the CalEEMod model.

Water and Wastewater
Water includes the water used for the interior of the buildings as well as for landscaping and is based on the GHG emissions associated with the energy used to transport and filter the water. The analysis was based on the default CalEEMod water usage rate of 27,625,300 gallons per year of indoor water use and 30,701,000 gallons per year of outdoor water use. No changes were made to the default water and wastewater parameters in the CalEEMod model.

8.2 Energy Use Calculations
The proposed project is anticipated to consume energy during both construction and operation of the proposed project and the parameters utilized to calculate energy use from construction and operation of the proposed project are detailed separately below.

Construction-Related Energy Use
Construction of the proposed project is anticipated to use energy in the forms of petroleum fuel for both off-road equipment as well as from the transport of workers and materials to and from the project site and the calculations for each source are described below.

Off-Road Construction Equipment
The off-road construction equipment fuel usage was calculated through use of the CalEEMod model’s default off-road equipment assumptions detailed above in Section 8.1. For each piece of off-road equipment, the fuel usage was calculated through use of the 2017 Off-road Diesel Emission Factors spreadsheet, prepared by CARB (https://ww3.arb.ca.gov/msei/ordiesel.htm). The Spreadsheet provides the following formula to calculate fuel usage from off-road equipment:

Fuel Used = Load Factor x Horsepower x Total Operational Hours x BSFC / Unit Conversion Where:

Load Factor - Obtained from CalEEMod default values

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Horsepower – Obtained from CalEEMod default values
Total Operational Hours – Calculated by multiplying CalEEMod default daily hours by CalEEMod default number of working days for each phase of construction BSFC – Brake Specific Fuel Consumption (pounds per horsepower-hour) – If less than 100 Horsepower = 0.408, if greater than 100 Horsepower = 0.367 Unit Conversion – Converts pounds to gallons = 7.109
Table H shows the off-road construction equipment fuel calculations based on the above formula. Table H shows that the off-road equipment utilized during construction of the proposed project would consume 245,104 gallons of diesel fuel.

Table H – Off-Road Equipment and Fuel Consumption from Construction of the Proposed Project Equipment Type
Equipment
Quantity
HorsepowerLoad
Factor
Operating Hours
per Day
Total Operational
Hours1
Fuel Used
(gallons)
Site Preparation
Rubber Tired Dozers 3 367 0.40 8 1,440 10,913
Crawler Tractors 4 87 0.43 8 1,920 4,122
Grading
Excavators 2 36 0.38 8 2,480 1,947
Grader 1 148 0.41 8 1,240 3,884
Rubber Tired Dozer 1 367 0.40 8 1,240 9,397
Scrapers 2 423 0.48 8 2,480 25,995
Crawler Tractors 2 87 0.43 8 2,480 5,325
Building Construction
Crane 1 367 0.29 7 10,850 59,614
Forklifts 3 82 0.20 8 37,200 35,014
Generator Set 1 14 0.74 8 12,400 7,373
Tractors/Loaders/Backhoes 3 84 0.37 7 32,550 58,061
Welder 1 46 0.45 8 12,400 14,731
Paving
Pavers 2 81 0.42 8 1,760 3,436
Paving Equipment 2 89 0.36 8 1,760 3,236
Rollers 2 36 0.38 8 1,760 1,382
Architectural Coating
Air Compressor 1 37 0.48 6 660 673
Total Off-Road Equipment Diesel Fuel Used during Construction (gallons) 245,104 Notes:
1 Based on: 60 days for Site Preparation, 155 days for Grading; 1,550 days for Building Construction; 110 days for Paving; and 110 days for Architectural Coating.

Source: CalEEMod Version 2022.1 (see Appendix A); CARB, 2017.

On-Road Construction-Related Vehicle Trips
The on-road construction-related vehicle trips fuel usage was calculated through use of the construction vehicle trip assumptions from the CalEEMod model run as detailed above in Section 8.1. The calculated total construction miles was then divided by the fleet average for all of Southern California miles per gallon rates for the year 2024 calculated through use of the EMFAC2017 model

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(https://www.arb.ca.gov/emfac/2017/) and the EMFAC2017 model printouts are shown in Appendix B. It should be noted that the EMFAC2021 model was not utilized, since it does not provide the information required to calculate the fleet average miles per gallon rates.

The worker trips were based on the entire fleet average miles per gallon rate for gasoline powered vehicles and the vendor trips were based on the Heavy-Heavy Duty Truck (HHDT), Medium Duty Vehicle (MDV), and Medium Heavy-Duty Vehicle (MHDV) fleet average miles per gallon rate for diesel-powered vehicles. Table I shows the on-road construction vehicle trips modeled in CalEEMod and the fuel usage calculations.

Table I – On-Road Vehicle Trips and Fuel Consumption from Construction of the Proposed Project Vehicle Trip Types/
Fuel Type Daily Trips
Trip Length
(miles)
Total Miles
per Day
Total Miles
per Phase1
Fleet Average
Miles per Gallon2
Fuel Used
(gallons)
Site Preparation
Worker (Gasoline) 17.5 18.5 324 19,425 27.5 707
Water Trucks (Diesel) 1 1 1 60 8.8 7
Grading
Worker (Gasoline) 20 18.5 370 57,350 27.5 2,087
Water Trucks (Diesel) 1 1 1 155 8.8 18
Building Construction
Worker (Gasoline) 153 18.5 2,831 4,387,275 27.5 159,680 Vendor Truck (Diesel) 45.3 10.2 462 716,193 8.8 81,106
Paving
Worker (Gasoline) 15 18.5 278 30,525 27.5 1,111
Architectural Coatings
Worker (Gasoline) 30.5 18.5 564 62,068 27.5 2,259
Total Gasoline Fuel Used from On-Road Construction Vehicles (gallons) 165,844 Total Diesel Fuel Used from On-Road Construction Vehicles (gallons) 81,132 Notes:
1 Based on: 60 days for Site Preparation, 155 days for Grading; 1,550 days for Building Construction; 110 days for Paving; and 110 days for Architectural Coating. 2 From EMFAC 2017 model (see Appendix B). Worker Trips based on entire fleet of gasoline vehicles and Vendor Trips based on only truck fleet of diesel vehicles.

Source: CalEEMod Version 2022.1; CARB, 2018.

Table I shows that the on-road construction-related vehicle trips would consume 165,844 gallons of gasoline and 81,132 gallons of diesel fuel. As detailed above, Table H shows that the off-road construction equipment would consume 245,104 gallons of diesel fuel. This would result in the total consumption of 165,844 gallons of gasoline and 326,237 gallons of diesel fuel from construction of the proposed project.

Operations-Related Energy Use
The operation of the proposed project is anticipated to use energy in the forms of petroleum fuel, electricity, and natural gas, and the calculations for each source are described below.

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Operational Petroleum Fuel
The on-road operations-related vehicle trips fuel usage was calculated through use of the total annual vehicle miles traveled assumptions from the CalEEMod model run as detailed above in Section 8.1, which found that operation of the proposed project would generate 15,062,398 vehicle miles traveled per year.

The calculated total operational miles were then divided by the Southern California fleet average rate of

29.9 miles per gallon, which was calculated through use of the EMFAC2017 model and based on the year 2027. The EMFAC2017 model printouts are shown in Appendix B. Based on the above calculation methodology, operational vehicle trips generated from the proposed project would consume 503,942 gallons of gasoline per year.

Operational Electricity Use
The operations-related electricity usage was calculated in the CalEEMod model run that is detailed above in Section 8.1 that found the operation of the proposed project will use 1,932,107 kilowatt hours (kWh) per year with implementation of Title 24 Part 6 requirements that require the implementation of building energy efficiency standards that include the installation of photovoltaic systems on the rooftops of the proposed homes.

Operational Natural Gas Use
The operations-related natural gas usage was calculated in the CalEEMod model run that is detailed above in Section 8.1 that found the operation of the proposed project will use 15,079,269 kilo British Thermal Units (kBTU) per year, which is equivalent to 15,079 mega-British Thermal units (MBTU) per year of natural gas.

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9.0 THRESHOLDS OF SIGNIFICANCE

9.1 Regional Air Quality
Many air quality impacts that derive from dispersed mobile sources, which are the dominant pollution generators in the Air Basin, often occurs hours later and miles away after photochemical processes have converted primary exhaust pollutants into secondary contaminants such as ozone. The incremental regional air quality impact of an individual project is generally very small and difficult to measure.

Therefore, SCAQMD has developed significance thresholds based on the volume of pollution emitted rather than on actual ambient air quality because the direct air quality impact of a project is not quantifiable on a regional scale. The SCAQMD CEQA Handbook states that any project in the Air Basin with daily emissions that exceed any of the identified significance thresholds should be considered as having an individually and cumulatively significant air quality impact. For the purposes to this air quality impact analysis, a regional air quality impact would be considered significant if emissions exceed the SCAQMD significance thresholds identified in Table J.

Table J – SCAQMD Regional Criteria Pollutant Emission Thresholds of Significance Pollutant Emissions (pounds/day)
VOC NOx CO SOx PM10 PM2.5 Lead
Construction 75 100 550 150 150 55 3
Operation 55 55 550 150 150 55 3
Source: http://www.aqmd.gov/docs/default-source/ceqa/handbook/scaqmd-air-quality-significance-thresholds.pdf?sfvrsn=2

9.2 Local Air Quality
Project-related construction air emissions may have the potential to exceed the State and Federal air quality standards in the project vicinity, even though these pollutant emissions may not be significant enough to create a regional impact to the Air Basin. In order to assess local air quality impacts the SCAQMD has developed Localized Significant Thresholds (LSTs) to assess the project-related air emissions in the project vicinity. SCAQMD has also provided Final Localized Significance Threshold Methodology (LST Methodology), July 2008, which details the methodology to analyze local air emission impacts. The LST Methodology found that the primary emissions of concern are NO2, CO, PM10, and PM2.5.

The LST Methodology provides Look-Up Tables with different thresholds based on the location and size of the project site and distance to the nearest sensitive receptors. As detailed above in Section 7.3, the project site is located in Monitoring Area 28, which covers the Hemet and San Jacinto Valley.

The Look-Up Tables include site acreage sizes of 1-acre, 2-acres and 5-acres. The Fact Sheet for Applying CalEEMod to Localized Significance Thresholds, prepared by SCAQMD, 2015, provides guidance on how to determine the appropriate site acreage size to utilize for a project. The Fact Sheet details the site acreage should be based on the maximum number of acres disturbed on the peak day of construction that is calculated on the construction equipment list utilized in the CalEEMod model, where crawler tractors, graders, and rubber-tired dozers are all assumed to disturb 0.5-acre in an 8-hour day and scrapers are assumed to disturb 1.0-acre in an 8-hour day. It should be noted that the methodology in the Fact Sheet was developed from the CalEEMod User Guide Appendix A, page 9, where the same acres disturbed per equipment type is detailed and is utilized in the CalEEMod model in order to determine the acres per day disturbed during site preparation and grading phases.

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Table K lists all of the construction equipment modeled in CalEEMod and utilizes the methodology in the Fact Sheet to calculate the acres disturbed per day. As shown in Table K, the maximum disturbed per day would occur during the grading phase when 4.0-acres would be disturbed. As such, the 2-acre and 5-acre project sites shown in the Look-Up Tables were interpolated in order to calculate the 4.0-acre threshold that has been utilized in this analysis.

Table K – Construction Equipment Modeled in CalEEMod and Acres Disturbed per Day Construction
Activity Equipment Type
Equipment
Quantity
Acres Disturbed per
piece of Equipment
per Day1
Operating
Hours per
Day
Acres
Disturbed
per Day
Site
Preparation
Rubber Tired Dozers 3 0.5 8 1.5
Crawler Tractors 4 0.5 8 2.0
Total Acres Disturbed per Day During Site Preparation 3.5 Grading
Graders 2 0.5 8 0.5
Excavators 1 0 8 0
Rubber Tired Dozers 1 0.5 8 0.5
Scrapers 2 1.0 8 2.0
Crawler Tractors 2 0.5 8 1.0
Total Acres Disturbed per Day During Grading 4.0
Building
Construction
Cranes 1 0 7 0
Forklifts 3 0 8 0
Generator Sets 1 0 8 0
Tractors/Loaders/Backhoes 3 0 7 0
Welders 1 0 8 0
Total Acres Disturbed per Day During Building Construction 0 Paving
Pavers 2 0 8 0
Paving Equipment 2 0 8 0
Rollers 2 0 8 0
Total Acres Disturbed per Day During Paving 0
Architectural
Coating
Air Compressor 1 0 6 0
Total Acres Disturbed per Day During Architectural Coating 0 Maximum Acres Disturbed during All Construction Activities 4.0 Notes:
1 Based on the Fact Sheet for Applying CalEEMod to Localized Significance Thresholds where crawler tractors, graders, and rubber-tired dozers disturb 0.5-acre in an 8-hour day and scrapers disturb 1.0-acre in an 8-hour day. All other equipment disturbs 0 acres per 8-hour day.

Source: CalEEMod Version 2022.1; SCAQMD, 2015.

The nearest sensitive receptors to the project site are single-family homes located as near as 15 feet (5 meters) to the northeast of the project site. According to LST Methodology, any receptor located closer than 25 meters (82 feet) shall be based on the 25-meter thresholds. Table L below shows the LSTs for NO2, PM10 and PM2.5 for both construction and operational activities.

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Table L – SCAQMD Local Air Quality Thresholds of Significance Activity
Allowable Emissions (pounds/day)1
NOx CO PM10 PM2.5
Construction 325 1,677 11 7
Operation 325 1,677 3 2
Notes:
1 The nearest sensitive receptors to the project site are single-family homes located as near as 15 feet (5 meters) northeast of the project site.

According to SCAQMD methodology, all receptors closer than 25 meters are based on the 25-meter threshold.

Source: Calculated from SCAQMD’s Mass Rate Look-up Tables for two and five acres in Air Monitoring Area 28, Hemet/San Jacinto Valley.

9.3 Toxic Air Contaminants
According to the SCAQMD CEQA Handbook, any project that has the potential to expose the public to toxic air contaminants in excess of the following thresholds would be considered to have a significant air quality impact:
• If the Maximum Incremental Cancer Risk is 10 in one million or greater; or • Toxic air contaminants from the proposed project would result in a Hazard Index increase of 1 or greater.

In order to determine if the proposed project may have a significant impact related to TACs, the Health Risk Assessment Guidance for analyzing Cancer Risks from Mobile Source Diesel Idling Emissions for CEQA Air Quality Analysis, (Diesel Analysis) prepared by SCAQMD, August 2003, recommends that if the proposed project is anticipated to create TACs through stationary sources or regular operations of diesel trucks on the project site, then the proximity of the nearest receptors to the source of the TAC and the toxicity of the HAP should be analyzed through a comprehensive facility-wide health risk assessment (HRA).

9.4 Odor Impacts
The SCAQMD CEQA Handbook states that an odor impact would occur if the proposed project creates an odor nuisance pursuant to SCAQMD Rule 402, which states:
“A person shall not discharge from any source whatsoever such quantities of air contaminants or other material which cause injury, detriment, nuisance, or annoyance to any considerable number of persons to the public, or which endanger the comfort, repose, health or safety of any such persons or the public, or which cause, or have a natural tendency to cause, injury or damage to business or property.

The provisions of this rule shall not apply to odors emanating from agricultural operations necessary for the growing of crops or the raising of fowl or animals.” If the proposed project results in a violation of Rule 402 with regards to odor impacts, then the proposed project would create a significant odor impact.

9.5 Energy Conservation
The 2022 CEQA California Environmental Quality Act Statutes & Guidelines(2022 CEQA Guidelines) include an Energy Section that analyzes the proposed project’s energy consumption in order to avoid or reduce

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inefficient, wasteful or unnecessary consumption of energy. Appendix F of the 2022 CEQA Statute and Guidelines, states the following:

The goal of conserving energy implies the wise and efficient use of energy. The means of achieving this goal include:
(1) Decreasing overall per capita energy consumption,
(2) Decreasing reliance on fossil fuels such as coal, natural gas and oil, and (3) Increasing reliance on renewable energy sources.

Since the Energy Section was recently added, no state or local agencies have adopted specific criteria or thresholds to be utilized in an energy impact analysis. However, Appendix F, Subsection II.C of the 2022 CEQA Guidelines provides the following criteria for determining significance.

1. The project’s energy requirements and its energy use efficiencies by amount and fuel type for each stage of the project life cycle including construction, operation, maintenance and/or removal. If appropriate, the energy intensiveness of materials may be discussed.

2. The effects of the project on local and regional energy supplies and on requirement for additional capacity.

3. The effects of the project on peak and base period demands for electricity and other forms of energy.

4. The degree to which the project complies with existing energy standards.

5. The effects of the project on energy resources.

6. The project’s projected transportation energy use requirements and its overall use of efficient transportation alternatives.

If the proposed project creates inefficient, wasteful or unnecessary consumption of energy during construction or operation activities or conflicts with a state or local plan for renewable energy or energy efficiency, then the proposed project would create a significant energy impact.

9.6 Greenhouse Gas Emissions
The proposed project is located within the City of San Jacinto that recently adopted a General Plan Update (GPU) and certified the Environmental Impact Report for the San Jacinto General Plan Update (GPEIR).

The GPEIR is a Program EIR that examined the potential impacts of GPU build-out through the year 2040, that includes an additional 16,252 housing units. The GPEIR identified a significant unavoidable impact to GHG emissions. The GPU specifies a target to reduce community-wide GHG emissions to 1.83 MTCO2e per service population by 2050. The GPEIR found that many of the associated reductions in GHG emissions were determined to not be quantifiable or verifiable, the GPU’s impact to GHG emissions was identified as significant and unavoidable.

Section 15183 of the CEQA Guidelines, detail that if a development project is consistent with the general plan and an EIR was certified with respect to that general plan, the application of CEQA to the approval of that development project shall be limited to effects on the environment which are peculiar to the parcel or to the project and which were not addressed as significant effects in the prior EIR or which substantial new information shows will be more significant than described in the prior environmental impact report.

Based on the above, the GHG analysis provided in this Report is limited to quantifying the project-related GHG emissions and determination of significance will provided in the CEQA analysis prepared for the proposed project.

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10.0 IMPACT ANALYSIS

10.1 CEQA Thresholds of Significance
Consistent with CEQA and the State CEQA Guidelines, a significant impact related to air quality, energy, and GHG emissions would occur if the proposed project is determined to:
• Conflict with or obstruct implementation of the applicable air quality plan; • Result in a cumulatively considerable net increase of any criteria pollutant for which the project region is in non-attainment under an applicable federal or state ambient air quality standard; • Expose sensitive receptors to substantial pollutant concentrations; • Result in other emissions (such as those leading to odors) adversely affecting a substantial number of people;
• Result in potentially significant environmental impact due to wasteful, inefficient, or unnecessary consumption of energy resources, during project construction or operation; • Conflict with or obstruct a state or local plan for renewable energy; • Generate GHG emissions, either directly or indirectly, that may have a significant impact on the environment; or
• Conflict with any applicable plan, policy or regulation of an agency adopted for the purpose of reducing the emissions of GHGs.

10.2 Air Quality Compliance
The proposed project would not conflict with or obstruct implementation of the SCAQMD Air Quality Management Plan (AQMP). The following section discusses the proposed project’s consistency with the SCAQMD AQMP.

SCAQMD Air Quality Management Plan
The California Environmental Quality Act (CEQA) requires a discussion of any inconsistencies between a proposed project and applicable General Plans and regional plans (CEQA Guidelines Section 15125). The regional plan that applies to the proposed project includes the SCAQMD AQMP. Therefore, this section discusses any potential inconsistencies of the proposed project with the AQMP.

The purpose of this discussion is to set forth the issues regarding consistency with the assumptions and objectives of the AQMP and discuss whether the proposed project would interfere with the region’s ability to comply with Federal and State air quality standards. If the decision-makers determine that the proposed project is inconsistent, the lead agency may consider project modifications or inclusion of mitigation to eliminate the inconsistency.

The SCAQMD CEQA Handbook states that "New or amended GP Elements (including land use zoning and density amendments), Specific Plans, and significant projects must be analyzed for consistency with the AQMP." Strict consistency with all aspects of the plan is usually not required. A proposed project should be considered to be consistent with the AQMP if it furthers one or more policies and does not obstruct other policies. The SCAQMD CEQA Handbook identifies two key indicators of consistency:

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(1) Whether the project will result in an increase in the frequency or severity of existing air quality violations or cause or contribute to new violations, or delay timely attainment of air quality standards or the interim emission reductions specified in the AQMP. (2) Whether the project will exceed the assumptions in the AQMP or increments based on the year of project buildout and phase.

Both of these criteria are evaluated in the following sections.

Criterion 1 - Increase in the Frequency or Severity of Violations? Based on the air quality modeling analysis contained in this report, short-term regional construction air emissions would not result in significant impacts based on SCAQMD regional thresholds of significance discussed above in Section 9.1 or local thresholds of significance discussed above in Section 9.2. The ongoing operation of the proposed project would generate air pollutant emissions that are inconsequential on a regional basis and would not result in significant impacts based on SCAQMD thresholds of significance discussed above in Section 9.1. The analysis for long-term local air quality impacts showed that local pollutant concentrations would not be projected to exceed the air quality standards. Therefore, a less than significant long-term impact would occur and no mitigation would be required.

Therefore, based on the information provided above, the proposed project would be consistent with the first criterion.

Criterion 2 - Exceed Assumptions in the AQMP?
Consistency with the AQMP assumptions is determined by performing an analysis of the proposed project with the assumptions in the AQMP. The emphasis of this criterion is to insure that the analyses conducted for the proposed project are based on the same forecasts as the AQMP. The AQMP is developed through use of the planning forecasts provided in the RTP/SCS (Connect SoCal) and FTIP (2019 FTIP). The RTP/SCS is a major planning document for the regional transportation and land use network within Southern California. The RTP/SCS is a long-range plan that is required by federal and state requirements placed on SCAG and is updated every four years. The FTIP provides long-range planning for future transportation improvement projects that are constructed with state and/or federal funds within Southern California.

Local governments are required to use these plans as the basis of their plans for the purpose of consistency with applicable regional plans under CEQA. For this project, the City of San Jacinto General Plan’s Land Use Plan Land Use Plan defines the assumptions that are represented in AQMP.

The project site is currently designated as Low Density Residential (LDR) in the General Plan Land Use Plan and is zoned Residential Low Density (RL), which allows for 2-7 dwelling units per gross acre. The proposed project consists of the development of 424 single-family homes on a 96-acre project site, which would result in a density of 4.4 dwelling units per acre. The proposed project is consistent with the General Plan land use designation and would not require a General Plan Amendment.As such, the proposed project is not anticipated to exceed the AQMP assumptions for the project site and is found to be consistent with the AQMP for the second criterion.

Based on the above, the proposed project will not result in an inconsistency with the SCAQMD AQMP.

Therefore, a less than significant impact will occur in relation to implementation of the AQMP.

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Level of Significance
Less than significant impact.

10.3 Cumulative Net Increase in Non-Attainment Pollution The proposed project would not result in a cumulatively considerable net increase of any criteria pollutant for which the project region is non-attainment under an applicable Federal or State ambient air quality standard.

The SCAQMD has published a report on how to address cumulative impacts from air pollution: White Paper on Potential Control Strategies to Address Cumulative Impacts from Air Pollution (http://www.aqmd.gov/docs/default-source/Agendas/Environmental-Justice/cumulative-impactsworking-group/cumulative-impacts-white-paper.pdf). In this report the AQMD clearly states (Page D-3):
“…the AQMD uses the same significance thresholds for project specific and cumulative impacts for all environmental topics analyzed in an Environmental Assessment or Environmental Impact Report (EIR). The only case where the significance thresholds for project specific and cumulative impacts differ is the Hazard Index (HI) significance threshold for TAC emissions. The project specific (project increment) significance threshold is HI > 1.0 while the cumulative (facility- wide) is HI > 3.0. It should be noted that the HI is only one of three TAC emission significance thresholds considered (when applicable) in a CEQA analysis. The other two are the maximum individual cancer risk (MICR) and the cancer burden, both of which use the same significance thresholds (MICR of 10 in 1 million and cancer burden of 0.5) for project specific and cumulative impacts. Projects that exceed the project-specific significance thresholds are considered by the SCAQMD to be cumulatively considerable. This is the reason project-specific and cumulative significance thresholds are the same. Conversely, projects that do not exceed the project-specific thresholds are generally not considered to be cumulatively significant.”
Therefore, this analysis assumes that individual projects that do not generate operational or construction emissions that exceed the SCAQMD’s recommended daily thresholds for project-specific impacts would also not cause a cumulatively considerable increase in emissions for those pollutants for which the Basin is in nonattainment, and, therefore, would not be considered to have a significant, adverse air quality impact. Alternatively, individual project-related construction and operational emissions that exceed SCAQMD thresholds for project-specific impacts would be considered cumulatively considerable. The following section calculates the potential air emissions associated with the construction and operations of the proposed project and compares the emissions to the SCAQMD standards.

Construction Emissions
The construction activities for the proposed project are anticipated to include site preparation and grading of the 96 acre project site, building construction of the single-family homes, paving of the onsite roads and parking areas, sidewalks and hardscapes, and application of architectural coatings. The CalEEMod model has been utilized to calculate the construction-related emissions from the proposed project and the input parameters utilized in this analysis have been detailed in Section 8.1. The maximum daily construction-related criteria pollutant emissions from the proposed project are shown below in Table M.

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Table M – Construction-Related Criteria Pollutant Emissions Maximum Daily Pollutant Emissions (pounds/day)
Season and Year of Construction VOC NOx CO SO2 PM10 PM2.5 Daily Summer Maximum
2024 4.58 42.6 36.8 0.06 9.61 4.96
2025 1.84 12.6 25.3 0.03 2.84 0.99
2026 1.75 11.9 24.4 0.03 2.78 0.94
2027 1.67 11.3 23.5 0.03 2.74 0.90
2028 1.61 10.8 22.8 0.03 2.70 0.87
2029 1.56 10.3 22.1 0.03 2.68 0.85
2030 1.44 10.0 21.5 0.03 2.66 0.83
2031 61.5 6.16 10.6 0.01 0.41 0.24
Daily Winter Maximum
2024 4.04 37.7 32.6 0.06 6.18 2.82
2025 3.65 32.7 30.6 0.06 5.92 2.58
2026 1.71 12.0 21.7 0.03 2.78 0.94
2027 1.63 11.5 21.1 0.03 2.74 0.90
2028 1.46 10.4 20.5 0.03 2.70 0.87
2029 1.42 10.1 20.0 0.03 2.68 0.85
2030 1.42 10.1 19.6 0.03 2.66 0.83
2031 61.5 9.74 19.1 0.03 2.65 0.81
Maximum Daily Construction Emissions 61.5 42.6 36.8 0.06 9.61 4.96 SCQAMD Regional Thresholds 75 100 550 150 150 55
SCAQMD Local Thresholds1 -- 325 1,677 -- 11 7
Exceeds Thresholds? No No No No No No
Notes:
1 The nearest offsite sensitive receptors to the project site are single-family homes located as near as 15 feet (5 meters) northeast of the project site. According to SCAQMD methodology, all receptors closer than 25 meters are based on the 25-meter threshold. Calculated from SCAQMD’s Mass Rate Look-up Tables for two and five acres in Air Monitoring Area 28, Hemet/San Jacinto Valley.

Source: CalEEMod Version 2022.1.

Table M shows that none of the analyzed criteria pollutants would exceed either the regional or local emissions thresholds during construction of the proposed project. Therefore, a less than significant regional or local air quality impact would occur from construction of the proposed project.

Operational Emissions
The on-going operation of the proposed project would result in a long-term increase in air quality emissions. This increase would be due to emissions from the project-generated vehicle trips, emissions from energy usage, onsite area source emissions created from the on-going use of the proposed project.

The following section provides an analysis of potential long-term air quality impacts due to regional air quality and local air quality impacts with the on-going operations of the proposed project.

Operations-Related Regional Criteria Pollutant Analysis The operations-related regional criteria air quality impacts created by the proposed project have been analyzed through use of the CalEEMod model and the input parameters utilized in this analysis have been detailed in Section 8.1. The worst-case summer or winter VOC, NOx, CO, SO2, PM10, and PM2.5 daily emissions created from the proposed project’s long-term operations have been calculated and are summarized below in Table N and the CalEEMod daily emissions printouts are shown in Appendix A.

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Table N – Operational Regional Criteria Pollutant Emissions Pollutant Emissions (pounds/day)
Activity VOC NOx CO SO2 PM10 PM2.5
Area Sources1 25.60 0.23 24.10 <0.01 0.01 0.01
Energy Usage2 0.22 3.81 1.62 0.02 0.31 0.31
Mobile Sources3 15.70 15.00 131.00 0.34 30.10 7.81
Total Emissions 41.52 19.04 156.72 0.36 30.42 8.13
SCQAMD Operational Thresholds 55 55 550 150 150 55
Exceeds Threshold? No No No No No No
Notes:
1 Area sources consist of emissions from consumer products, architectural coatings, hearths, and landscaping equipment. 2 Energy usage consist of emissions from natural gas usage (non-hearth). 3 Mobile sources consist of emissions from vehicles and road dust.

Source: Calculated from CalEEMod Version 2022.1.

The data provided in Table N shows that none of the analyzed criteria pollutants would exceed the regional emissions thresholds. Therefore, a less than significant regional air quality impact would occur from operation of the proposed project.

In Sierra Club v. County of Fresno (2018) 6 Cal.5th 502 (also referred to as “Friant Ranch”), the California Supreme Court held that when an EIR concluded that when a project would have significant impacts to air quality impacts, an EIR should “make a reasonable effort to substantively connect a project’s air quality impacts to likely health consequences.” In order to determine compliance with this Case, the Court developed a multi-part test that includes the following:
1) The air quality discussion shall describe the specific health risks created from each criteria pollutant, including diesel particulate matter.

This Analysis details the specific health risks created from each criteria pollutant above in Section 4.1 and specifically in Table B. In addition, the specific health risks created from diesel particulate matter is detailed above in Section 2.2 of this analysis. As such, this analysis meets the part 1 requirements of the Friant Ranch Case.
2) The analysis shall identify the magnitude of the health risks created from the Project. The Ruling details how to identify the magnitude of the health risks. Specifically, on page 24 of the ruling it states “The Court of Appeal identified several ways in which the EIR could have framed the analysis so as to adequately inform the public and decision makers of possible adverse health effects. The County could have, for example, identified the Project’s impact on the days of nonattainment per year.”
The Friant Ranch Case found that an EIR's air quality analysis must meaningfully connect the identified air quality impacts to the human health consequences of those impacts, or meaningfully explain why that analysis cannot be provided. As noted in the Brief of Amicus Curiae by the SCAQMD in the Friant Ranch case (https://www.courts.ca.gov/documents/9-s219783-ac-south-coast-air-quality-mgt-dist-041315.pdf) (Brief), SCAQMD has among the most sophisticated air quality modeling and health impact evaluation capability of any of the air districts in the State, and thus it is uniquely situated to express an opinion on how lead agencies should correlate air quality impacts with specific health outcomes. The SCAQMD

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discusses that it may be infeasible to quantify health risks caused by projects similar to the proposed Project, due to many factors. It is necessary to have data regarding the sources and types of air toxic contaminants, location of emission points, velocity of emissions, the meteorology and topography of the area, and the location of receptors (worker and residence). The Brief states that it may not be feasible to perform a health risk assessment for airborne toxics that will be emitted by a generic industrial building that was built on "speculation" (i.e., without knowing the future tenant(s)). Even where a health risk assessment can be prepared, however, the resulting maximum health risk value is only a calculation of risk, it does not necessarily mean anyone will contract cancer as a result of the Project. The Brief also cites the author of the CARB methodology, which reported that a PM2.5 methodology is not suited for small projects and may yield unreliable results. Similarly, SCAQMD staff does not currently know of a way to accurately quantify ozone-related health impacts caused by NOX or VOC emissions from relatively small projects, due to photochemistry and regional model limitations. The Brief concludes, with respect to the Friant Ranch EIR, that although it may have been technically possible to plug the data into a methodology, the results would not have been reliable or meaningful.

On the other hand, for extremely large regional projects (unlike the proposed project), the SCAQMD states that it has been able to correlate potential health outcomes for very large emissions sources – as part of their rulemaking activity, specifically 6,620 pounds per day of NOx and 89,180 pounds per day of VOC were expected to result in approximately 20 premature deaths per year and 89,947 school absences due to ozone. As shown above in , project-related construction activities would generate a maximum of 61.5 pounds per day of VOC and 42.6 pounds per day of NOx and as shown above in Table N, operation of the proposed project would generate 41.52 pounds per day of VOC and 19.04 pounds per day NOx. The proposed project would not generate anywhere near these levels of 6,620 pounds per day of NOx or 89,190 pounds per day of VOC emissions. Therefore, the proposed project’s emissions are not sufficiently high enough to use a regional modeling program to correlate health effects on a basin-wide level.

Notwithstanding, this analysis does evaluate the proposed project’s localized impact to air quality for emissions of CO, NOx, PM10, and PM2.5 by comparing the proposed project’s onsite emissions to the SCAQMD’s applicable LST thresholds. As evaluated in this analysis, the proposed project would not result in emissions that exceeded the SCAQMD’s LSTs. Therefore, the proposed project would not be expected to exceed the most stringent applicable federal or state ambient air quality standards for emissions of CO, NOx, PM10, and PM2.5.

Operations-Related Local Air Quality Impacts
Project-related air emissions may have the potential to exceed the State and Federal air quality standards in the project vicinity, even though these pollutant emissions may not be significant enough to create a regional impact to the Air Basin. The proposed project has been analyzed for the potential local CO emission impacts from the project-generated vehicular trips and from the potential local air quality impacts from on-site operations. The following analyzes the vehicular CO emissions and local impacts from on-site operations.

Local CO Hotspot Impacts from Project-Generated Vehicular Trips CO is the pollutant of major concern along roadways because the most notable source of CO is motor vehicles. For this reason, CO concentrations are usually indicative of the local air quality generated by a roadway network and are used as an indicator of potential local air quality impacts. Local air quality impacts can be assessed by comparing future without and with project CO levels to the State and Federal CO standards of 20 ppm over one hour or 9 ppm over eight hours.

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At the time of the 1993 Handbook, the Air Basin was designated nonattainment under the CAAQS and NAAQS for CO. With the turnover of older vehicles, introduction of cleaner fuels, and implementation of control technology on industrial facilities, CO concentrations in the Air Basin and in the state have steadily declined. In 2007, the Air Basin was designated in attainment for CO under both the CAAQS and NAAQS.

SCAQMD conducted a CO hot spot analysis for attainment at the busiest intersections in Los Angeles3 during the peak morning and afternoon periods and did not predict a violation of CO standards. Since the nearby intersections to the proposed project are much smaller with less traffic than what was analyzed by the SCAQMD, no local CO Hotspot are anticipated to be created from the proposed project and no CO Hotspot modeling was performed. Therefore, a less than significant long-term air quality impact is anticipated to local air quality with the on-going use of the proposed project.

Local Criteria Pollutant Impacts from Onsite Operations Project-related air emissions from onsite sources such as architectural coatings, landscaping equipment, and onsite usage of natural gas appliances may have the potential to create emissions areas that exceed the State and Federal air quality standards in the project vicinity, even though these pollutant emissions may not be significant enough to create a regional impact to the Air Basin.

The local air quality emissions from onsite operations were analyzed using the SCAQMD’s Mass Rate LST Look-up Tables and the methodology described in LST Methodology. The Look-up Tables were developed by the SCAQMD in order to readily determine if the daily emissions of CO, NOx, PM10, and PM2.5 from the proposed project could result in a significant impact to the local air quality. Table N shows the onsite emissions from the CalEEMod model that includes area sources, energy usage, and vehicles operating in the immediate vicinity of the project site and the calculated emissions thresholds.

Table O – Operations-Related Local Criteria Pollutant Emissions Pollutant Emissions (pounds/day)
Onsite Emission Source NOx CO PM10 PM2.5
Area Sources1 0.23 24.10 0.01 0.01
Energy Usage2 3.81 1.62 0.31 0.31
Mobile Sources3 0.35 3.10 0.71 0.18
Total Emissions 4.39 28.82 1.03 0.50
SCAQMD Local Operational Thresholds4 325 1,677 3 2
Exceeds Threshold? No No No No
Notes:
1 Area sources consist of emissions from consumer products, architectural coatings, hearths, and landscaping equipment. 2 Energy usage consist of emissions from natural gas usage (non-hearth). 3 Mobile sources consist of emissions from vehicles and road dust and were calculated based on 2.4 percent of the mobile source emissions, in order to account for the on-road emissions that occur within a ¼ mile of the project site and based on an average trip length of 10.57 miles. 4 The nearest offsite sensitive receptors to the project site are single-family homes located as near as 15 feet (5 meters) northeast of the project site. According to SCAQMD methodology, all receptors closer than 25 meters are based on the 25-meter threshold.

Source: Calculated from SCAQMD’s Mass Rate Look-up Tables for two and five acres in Air Monitoring Area 28, Hemet/San Jacinto Valley. 3 The four intersections analyzed by the SCAQMD were: Long Beach Boulevard and Imperial Highway; Wilshire Boulevard and Veteran Avenue; Sunset Boulevard and Highland Avenue; and La Cienega Boulevard and Century Boulevard. The busiest intersection evaluated (Wilshire and Veteran) had a daily traffic volume of approximately 100,000 vehicles per day with LOS E in the morning and LOS F in the evening peak hour.

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The data provided in Table N shows that the on-going operations of the proposed project would not exceed the local NOx, CO, PM10 and PM2.5 thresholds of significance discussed above in Section 9.2.

Therefore, the on-going operations of the proposed project would create a less than significant operations-related impact to local air quality due to onsite emissions and no mitigation would be required.

Therefore, the proposed project would not result in a cumulatively considerable net increase of any criteria pollutant.

Level of Significance
Less than significant impact.

10.4 Sensitive Receptors
The proposed project would not expose sensitive receptors to substantial pollutant concentrations. The local concentrations of criteria pollutant emissions produced in the nearby vicinity of the proposed project, which may expose sensitive receptors to substantial concentrations have been calculated above in Section 10.3 for both construction and operations, which are discussed separately below. The discussion below also includes an analysis of the potential impacts from toxic air contaminant emissions.

The nearest sensitive receptors to the project site are single-family homes located as near as 15 feet to the northeast of the project site.

Construction-Related Sensitive Receptor Impacts
The construction activities for the proposed project are anticipated to include site preparation and grading of the 96 acre project site, building construction of the 424 single-family homes, paving of the onsite roads driveways, sidewalks and hardscapes, and application of architectural coatings. Construction activities may expose sensitive receptors to substantial pollutant concentrations of localized criteria pollutant concentrations and from toxic air contaminant emissions created from onsite construction equipment, which are described below.

Local Criteria Pollutant Impacts from Construction
The local air quality impacts from construction of the proposed project have been analyzed above in Section 10.3 and found that the construction of the proposed project would not exceed the local NOx, CO, PM10 and PM2.5 thresholds of significance discussed above in Section 9.2. Therefore, construction of the proposed project would create a less than significant construction-related impact to local air quality and no mitigation would be required.

Toxic Air Contaminants Impacts from Construction
The greatest potential for toxic air contaminant emissions would be related to diesel particulate matter (DPM) emissions associated with heavy equipment operations during construction of the proposed project. According to SCAQMD methodology, health effects from carcinogenic air toxics are usually described in terms of “individual cancer risk”. “Individual Cancer Risk” is the likelihood that a person exposed to concentrations of toxic air contaminants over a 70-year lifetime will contract cancer, based on the use of standard risk-assessment methodology. It should be noted that the most current cancer risk assessment methodology recommends analyzing a 30 year exposure period for the nearby sensitive receptors (OEHHA, 2015).

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Given the relatively limited number of heavy-duty construction equipment, the varying distances that construction equipment would operate to the nearby sensitive receptors, and the short-term construction schedule, the proposed project would not result in a long-term (i.e., 30 or 70 years) substantial source of toxic air contaminant emissions and corresponding individual cancer risk. In addition, California Code of Regulations Title 13, Article 4.8, Chapter 9, Section 2449 regulates emissions from off-road diesel equipment in California. This regulation limits idling of equipment to no more than five minutes, requires equipment operators to label each piece of equipment and provide annual reports to CARB of their fleet’s usage and emissions. This regulation also requires systematic upgrading of the emission Tier level of each fleet, and currently no commercial operator is allowed to purchase Tier 0, Tier 1 or Tier 2 equipment. In addition to the purchase restrictions, equipment operators need to meet fleet average emissions targets that become more stringent each year between years 2014 and 2023. By January, 2022, 50 percent or more of all contractors’ equipment fleets must be Tier 2 or higher. Therefore, no significant short-term toxic air contaminant impacts would occur during construction of the proposed project. As such, construction of the proposed project would result in a less than significant exposure of sensitive receptors to substantial pollutant concentrations.

Operations-Related Sensitive Receptor Impacts
The on-going operations of the proposed project may expose sensitive receptors to substantial pollutant concentrations of local CO emission impacts from the project-generated vehicular trips and from the potential local air quality impacts from onsite operations. The following analyzes the vehicular CO emissions. Local criteria pollutant impacts from onsite operations, and toxic air contaminant impacts.

Local CO Hotspot Impacts from Project-Generated Vehicle Trips CO is the pollutant of major concern along roadways because the most notable source of CO is motor vehicles. For this reason, CO concentrations are usually indicative of the local air quality generated by a roadway network and are used as an indicator of potential impacts to sensitive receptors. The analysis provided above in Section 10.3 shows that no local CO Hotspots are anticipated to be created at any nearby intersections from the vehicle traffic generated by the proposed project. Therefore, operation of the proposed project would result in a less than significant exposure of offsite sensitive receptors to substantial pollutant concentrations.

Local Criteria Pollutant Impacts from Onsite Operations The local air quality impacts from the operation of the proposed project would occur from onsite sources such as architectural coatings, landscaping equipment, and onsite usage of natural gas appliances. The analysis provided above in Section 10.3 found that the operation of the proposed project would not exceed the local NOx, CO, PM10 and PM2.5 thresholds of significance discussed above in Section 9.2.

Therefore, the on-going operations of the proposed project would create a less than significant operations-related impact to local air quality due to on-site emissions and no mitigation would be required.

Operations-Related Toxic Air Contaminant Impacts
Particulate matter (PM) from diesel exhaust is the predominant TAC in most areas and according to The California Almanac of Emissions and Air Quality 2013 Edition, prepared by CARB, about 80 percent of the outdoor TAC cancer risk is from diesel exhaust. Some chemicals in diesel exhaust, such as benzene and formaldehyde have been listed as carcinogens by State Proposition 65 and the Federal Hazardous Air Pollutants program. Due to the nominal number of diesel truck trips that are anticipated to be generated

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by the on-going operation of the proposed single-family homes, a less than significant TAC impact would be created from the on-going operations of the proposed project and no mitigation would be required.

Level of Significance
Less than significant impact.

10.5 Odor Emissions
The proposed project would not create objectionable odors affecting a substantial number of people.

Individual responses to odors are highly variable and can result in a variety of effects. Generally, the impact of an odor results from a variety of factors such as frequency, duration, offensiveness, location, and sensory perception. The frequency is a measure of how often an individual is exposed to an odor in the ambient environment. The intensity refers to an individual’s or group’s perception of the odor strength or concentration. The duration of an odor refers to the elapsed time over which an odor is experienced. The offensiveness of the odor is the subjective rating of the pleasantness or unpleasantness of an odor. The location accounts for the type of area in which a potentially affected person lives, works, or visits; the type of activity in which he or she is engaged; and the sensitivity of the impacted receptor.

Sensory perception has four major components: detectability, intensity, character, and hedonic tone. The detection (or threshold) of an odor is based on a panel of responses to the odor. There are two types of thresholds: the odor detection threshold and the recognition threshold. The detection threshold is the lowest concentration of an odor that will elicit a response in a percentage of the people that live and work in the immediate vicinity of the project site and is typically presented as the mean (or 50 percent of the population). The recognition threshold is the minimum concentration that is recognized as having a characteristic odor quality, this is typically represented by recognition by 50 percent of the population.

The intensity refers to the perceived strength of the odor. The odor character is what the substance smells like. The hedonic tone is a judgment of the pleasantness or unpleasantness of the odor. The hedonic tone varies in subjective experience, frequency, odor character, odor intensity, and duration. Potential odor impacts have been analyzed separately for construction and operations below.

Construction-Related Odor Impacts
Potential sources that may emit odors during construction activities include the application of coatings such as asphalt pavement, paints and solvents and from emissions from diesel equipment. Standard construction requirements that limit the time of day when construction may occur as well as SCAQMD Rule 1108 that limits VOC content in asphalt and Rule 1113 that limits the VOC content in paints and solvents would minimize odor impacts from construction. As such, the objectionable odors that may be produced during the construction process would be temporary and would not likely be noticeable for extended periods of time beyond the project site’s boundaries. Through compliance with the applicable regulations that reduce odors and due to the transitory nature of construction odors, a less than significant odor impact would occur and no mitigation would be required.

Operations-Related Odor Impacts
The proposed project would consist of the development of a single-family residential development.

Potential sources that may emit odors during the on-going operations of the proposed project would primarily occur from the trash storage areas. Pursuant to City regulations, permanent trash enclosures that protect trash bins from rain as well as limit air circulation would be required for the trash storage areas. Due to the distance of the nearest receptors from the project site and through compliance with

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SCAQMD’s Rule 402 and City trash storage regulations, no significant impact related to odors would occur during the on-going operations of the proposed project. Therefore, a less than significant odor impact would occur and no mitigation would be required.

Level of Significance
Less than significant impact.

10.6 Energy Consumption
The proposed project would impact energy resources during construction and operation. Energy resources that would be potentially impacted include electricity, natural gas, and petroleum based fuel supplies and distribution systems. This analysis includes a discussion of the potential energy impacts of the proposed projects, with particular emphasis on avoiding or reducing inefficient, wasteful, and unnecessary consumption of energy. A general definition of each of these energy resources are provided below.

Electricity, a consumptive utility, is a man-made resource. The production of electricity requires the consumption or conversion of energy resources, including water, wind, oil, gas, coal, solar, geothermal, and nuclear resources, into energy. The delivery of electricity involves a number of system components, including substations and transformers that lower transmission line power (voltage) to a level appropriate for on-site distribution and use. The electricity generated is distributed through a network of transmission and distribution lines commonly called a power grid. Conveyance of electricity through transmission lines is typically responsive to market demands. In 2021, Riverside County consumed 16,767 Gigawatt-hours per year of electricity4
.

Natural gas is a combustible mixture of simple hydrocarbon compounds (primarily methane) that is used as a fuel source. Natural gas consumed in California is obtained from naturally occurring reservoirs, mainly located outside the State, and delivered through high-pressure transmission pipelines. The natural gas transportation system is a nationwide network and, therefore, resource availability is typically not an issue. Natural gas satisfies almost one-third of the State’s total energy requirements and is used in electricity generation, space heating, cooking, water heating, industrial processes, and as a transportation fuel. Natural gas is measured in terms of cubic feet. In 2021, Riverside County consumed 430.84 Million Therms of natural gas5
.

Petroleum-based fuels currently account for a majority of the California’s transportation energy sources and primarily consist of diesel and gasoline types of fuels. However, the state has been working on developing strategies to reduce petroleum use. Over the last decade California has implemented several policies, rules, and regulations to improve vehicle efficiency, increase the development and use of alternative fuels, reduce air pollutants and GHG emissions from the transportation sector, and reduce vehicle miles traveled (VMT). Accordingly, petroleum-based fuel consumption in California has declined.

In 2017, 1,052 million gallons of gasoline and 148 million gallons of diesel was sold in Riverside County6 .
4 Obtained from: http://www.ecdms.energy.ca.gov/elecbycounty.aspx 5 Obtained from: http://www.ecdms.energy.ca.gov/gasbycounty.aspx 6 Obtained from: https://ww2.energy.ca.gov/almanac/transportation_data/gasoline/

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The following section calculates the potential energy consumption associated with the construction and operations of the proposed project and provides a determination if any energy utilized by the proposed project is wasteful, inefficient, or unnecessary consumption of energy resources.

Construction Energy
The construction activities for the proposed project are anticipated to include site preparation and grading of the 96 acre project site, building construction of the 424 single-family homes, paving of the onsite roads driveways, sidewalks and hardscapes, and application of architectural coatings. The proposed project would consume energy resources during construction in three (3) general forms:

1. Petroleum-based fuels used to power off-road construction vehicles and equipment on the Project Site, construction worker travel to and from the Project Site, as well as delivery and haul truck trips (e.g. hauling of demolition material to off-site reuse and disposal facilities);

2. Electricity associated with the conveyance of water that would be used during Project construction for dust control (supply and conveyance) and electricity to power any necessary lighting during construction, electronic equipment, or other construction activities necessitating electrical power; and,

3. Energy used in the production of construction materials, such as asphalt, steel, concrete, pipes, and manufactured or processed materials such as lumber and glass.

Construction-Related Electricity
During construction the proposed project would consume electricity to construct the proposed warehouse and infrastructure. Electricity would be supplied to the project site by Southern California Edison and would be obtained from the existing electrical lines in the vicinity of the project site. The use of electricity from existing power lines rather than temporary diesel or gasoline powered generators would minimize impacts on fuel consumption. Electricity consumed during project construction would vary throughout the construction period based on the construction activities being performed. Various construction activities include electricity associated with the conveyance of water that would be used during project construction for dust control (supply and conveyance) and electricity to power any necessary lighting during construction, electronic equipment, or other construction activities necessitating electrical power. Such electricity demand would be temporary, nominal, and would cease upon the completion of construction. Overall, construction activities associated with the proposed project would require limited electricity consumption that would not be expected to have an adverse impact on available electricity supplies and infrastructure. Therefore, the use of electricity during project construction would not be wasteful, inefficient, or unnecessary.

Since there are currently power lines in the vicinity of the project site, it is anticipated that only nominal improvements would be required to Southern California Edison Utility distribution lines and equipment with development of the proposed project. Compliance with City’s guidelines and requirements would ensure that the proposed project fulfills its responsibilities relative to infrastructure installation, coordinates any electrical infrastructure removals or relocations, and limits any impacts associated with construction of the project. Construction of the project’s electrical infrastructure is not anticipated to adversely affect the electrical infrastructure serving the surrounding uses or utility system capacity.

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Construction-Related Natural Gas
Construction of the proposed project typically would not involve the consumption of natural gas. Natural gas would not be supplied to support construction activities, thus there would be no demand generated by construction. Since the project site is adjacent to roads that currently have natural gas lines, construction of the proposed project would be limited to installation of new natural gas connections within the project site. Development of the proposed project would likely not require extensive infrastructure improvements to serve the project site. Construction-related energy usage impacts associated with the installation of natural gas connections are expected to be confined to trenching in order to place the lines below surface. In addition, prior to ground disturbance, the proposed project would notify and coordinate with SoCalGas to identify the locations and depth of all existing gas lines and avoid disruption of gas service. Therefore, construction-related impacts to natural gas supply and infrastructure would be less than significant.

Construction-Related Petroleum Fuel Use
Petroleum-based fuel usage represents the highest amount of transportation energy potentially consumed during construction, which would be utilized by both off-road equipment operating on the project site and on-road automobiles transporting workers to and from the project site and on-road trucks transporting equipment and supplies to the project site.

The off-road construction equipment fuel usage was calculated through use of the off-road equipment assumptions and fuel use assumptions shown above in Section 8.2, which found that construction of the proposed project would consume 165,844 gallons of gasoline and 326,237 gallons of diesel fuel. This equates to 0.016 percent of the gasoline and 0.22 percent of the diesel used annually in Riverside County.

As such, the construction-related petroleum use would be nominal, when compared to current countywide petroleum usage rates.

Construction activities associated with the proposed project would be required to adhere to all State and SCAQMD regulations for off-road equipment and on-road trucks, which provide minimum fuel efficiency standards. As such, construction activities for the proposed project would not result in the wasteful, inefficient, and unnecessary consumption of energy resources. Impacts regarding transportation energy would be less than significant. Development of the project would not result in the need to manufacture construction materials or create new building material facilities specifically to supply the proposed project. It is difficult to measure the energy used in the production of construction materials such as asphalt, steel, and concrete, it is reasonable to assume that the production of building materials such as concrete, steel, etc., would employ all reasonable energy conservation practices in the interest of minimizing the cost of doing business.

Operational Energy
The on-going operation of the proposed project would require the use of energy resources for multiple purposes including, but not limited to, heating/ventilating/air conditioning (HVAC), refrigeration, lighting, appliances, and electronics. Energy would also be consumed during operations related to water usage, solid waste disposal, landscape equipment and vehicle trips.

Operations-Related Electricity
Operation of the proposed project would result in consumption of electricity at the project site. As detailed above in Section 8.2 the proposed project would consume 1,932,107 kilowatt-hours per year of

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McLeish Ranch Residential Project, Air Quality, Energy, and GHG Emissions Impact Analysis City of San Jacinto

electricity. This equates to 0.011 percent of the electricity consumed annually in Riverside County. As such, the operations-related electricity use would be nominal, when compared to current electricity usage rates in the County.

It should be noted that the proposed project will be required to meet the 2019 Title 24, Part 6 building energy efficiency standards that have been developed to meet the State’s goal of zero-net-energy use for new homes. The zero net energy use will be achieved through a variety of measures to make new homes more energy efficient and by also requiring installation of photovoltaic systems of adequate size to generate enough electricity to meet the zero-net energy use standard. The size of the PV system required for the project pursuant to the 2019 Title 24 standards was calculated above in Section 8.1, which found that the proposed project would need to install at least 833.3 Kilowatts of photovoltaic panels within the proposed project. Although, the CalEEMod model found that with implementation of the 2022 Title 24 Part 6 standards, that the proposed project would continue to utilize a nominal amount of power, it should be noted that the electricity usage and emission rates utilized by the CalEEMod model are based on regional average usage rates for existing homes, which were not all built to the most current Title 24 Part 6, standards, so the CalEEMod model provides a conservative or worst-case analysis of electricity use from the proposed project. Therefore, it is anticipated the proposed project will be designed and built to minimize electricity use and that existing and planned electricity capacity and electricity supplies would be sufficient to support the proposed project’s electricity demand. Thus, impacts with regard to electrical supply and infrastructure capacity would be less than significant and no mitigation measures would be required.

Operations-Related Natural Gas
Operation of the proposed project would result in increased consumption of natural gas at the project site. As detailed above in Section 8.2 the proposed project would consume 15,079 MBTU per year of natural gas. This equates to 0.035 percent of the natural gas consumed annually in Riverside County. As such, the operations-related natural gas use would be nominal, when compared to current natural gas usage rates in the County.

It should be noted that, the proposed project would comply with all Federal, State, and County requirements related to the consumption of natural gas, that includes CCR Title 24, Part 6 Building Energy Efficiency Standards and CCR Title 24, Part 11: California Green Building Standards. The CCR Title 24, Part 6 and Part 11 standards require numerous energy efficiency measures to be incorporated into the proposed structures, including enhanced insulation as well as use of efficient natural gas appliances and HVAC units. Therefore, it is anticipated the proposed project will be designed and built to minimize natural gas use and that existing and planned natural gas capacity and natural gas supplies would be sufficient to support the proposed project’s natural gas demand. Thus, impacts with regard to natural gas supply and infrastructure capacity would be less than significant and no mitigation measures would be required.

Operations-Related Vehicular Petroleum Fuel Usage
Operation of the proposed project would result in increased consumption of petroleum-based fuels related to vehicular travel to and from the project site. As detailed above in Section 8.2 the proposed project would consume 503,942 gallons of gasoline per year from vehicle travel. This equates to 0.048 percent of the gasoline consumed annually in Riverside County. As such, the operations-related petroleum use would be nominal, when compared to current petroleum usage rates

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Packet Pg. 512 Attachment: Appendix A - Air Energy GHG Report (McLeish Planned Development Permit & Tentative Tract Map 38203 (P22-022))

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Packet Pg. 750 Attachment: Planning Commission Staff Report (McLeish Ranch Planned Development Permit & Tentative Tract Map 38203 (P22-022))

McLeish Ranch Residential Project, Air Quality, Energy, and GHG Emissions Impact Analysis City of San Jacinto

It should be noted that, the proposed project would comply with all Federal, State, and City requirements related to the consumption of transportation energy that includes California Code of Regulations Title 24, Part 10 California Green Building Standards that require that all new garages to install electrical panels of adequate size to support the installation of electric vehicle charging systems. The proposed project would also be located as near as 540 feet from an existing Riverside Transit bus stop, which will encourage the use of public transportation. Therefore, it is anticipated the proposed project will be designed and built to minimize transportation energy through the promotion of the use of electric-powered vehicles and it is anticipated that existing and planned capacity and supplies of transportation fuels would be sufficient to support the proposed project’s demand. Thus, impacts with regard transportation energy supply and infrastructure capacity would be less than significant and no mitigation measures would be required.

In conclusion, the proposed project would comply with regulatory compliance measures outlined by the State and City related to Air Quality, Greenhouse Gas Emissions (GHG), Transportation/Circulation, and Water Supply. Additionally, the proposed project would be constructed in accordance with all applicable City Building and Fire Codes. Therefore, the proposed project would not result in the wasteful, inefficient, or unnecessary consumption of energy resources during project construction or operation. Impacts would be less than significant.

Level of Significance
Less than significant impact.

10.7 Energy Plan Consistency
The proposed project would not conflict with or obstruct a state or local plan for renewable energy or energy efficiency. The applicable energy plan for the proposed project is the Resource Management Element of the San Jacinto General Plan, November 15, 2022. The proposed project’s consistency with the applicable energy-related policies in the General Plan are shown in Table P.

Table P – Proposed Project Compliance with Applicable General Plan Energy Policies Policy
No. General Plan Policy Proposed Project Implementation Actions Goal RM-5 A community that safely manages its energy and mineral resources RM-5.1 San Jacinto Power. Continue to make
clean, modern, and cost-effective energy
options available to individuals who live
and work in San Jacinto
Not Applicable. This policy is directed to San Jacinto Power.

RM-5.2 Compliance with State Legislation.

Comply with all state requirements
regarding the generation of power and
encourage energy providers to
investigate the use or expansion of
renewable sources of energy.

Not Applicable. This policy is directed to City staff and energy providers. It should noted that the proposed homes will be designed to meet or exceed the 2022 Title 24 Part 6 building standards that require all single-family homes built in California to have rooftop solar PV systems that will assist the City in meeting this Policy.

RM-5.3 Renewable Energy. Promote the
development and use of renewable
energy resources to reduce dependency
on fossil fuels.

Consistent. The proposed homes will be designed to meet or exceed the 2022 Title 24 Part 6 building standards that require all single-family homes built in California to have rooftop solar PV systems as well as battery backup systems that will reduce dependency on fossil fuels

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Packet Pg. 513 Attachment: Appendix A - Air Energy GHG Report (McLeish Planned Development Permit & Tentative Tract Map 38203 (P22-022))

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Packet Pg. 751 Attachment: Planning Commission Staff Report (McLeish Ranch Planned Development Permit & Tentative Tract Map 38203 (P22-022))

McLeish Ranch Residential Project, Air Quality, Energy, and GHG Emissions Impact Analysis City of San Jacinto

Policy
No. General Plan Policy Proposed Project Implementation Actions RM-5.4 Energy-Efficient Materials. Promote the
use of energy-efficient materials,
equipment, and design in public and
private facilities and infrastructure.

Consistent. The proposed homes will be designed to meet or exceed the 2022 Title 24 Part 6 building standards that require use of energy-efficient materials.

RM-5.5 Energy Conservation. Promote energy
conservation and recycling by the public
and private sectors.

Consistent. The proposed project will be designed to meet the CalGreen requirements that requires that a minimum of 65 percent of the construction debris is recycled.

RM-5.6 Energy Needs. Collaborate with local
service providers in determining and
meeting the needs of the community for
energy in clean, modern, and costeffective ways.

Not Applicable. This policy is directed to San Jacinto Power and Southern California Edison.

RM-5.7 Business Community. Support the
decisions of the San Jacinto business
community as they select and implement
the most appropriate, financially
feasible, and responsible energy source
for their individual operations.

Not Applicable. This policy is directed to City staff. It should noted that the proposed homes will be designed to meet or exceed the 2022 Title 24 Part 6 building standards that require all single-family homes built in California to have rooftop solar PV systems.

RM-5.8 Public Education. Promote public
education programs that advocate for
reducing energy consumption, and
promote renewable sources of energy.

Not Applicable. This policy is directed to City staff.

RM-5.9 Promote Energy Conservation in
Existing Building Stock. Promote energy
conservation by residents and businesses
in existing structures, in close
coordination with other agencies and
local energy providers, including the
SCAQMD and Southern California Edison.

Not Applicable. The proposed project does not include any existing structures that would be renovated as part of the project.

Source: City of San Jacinto, 2022.

As shown in Table P, the proposed project would be consistent with all applicable energy-related policies from the General Plan. Therefore, the proposed project would not conflict with or obstruct a state or local plan for renewable energy or energy efficiency. Impacts would be less than significant.

Level of Significance
Less than significant impact.

10.8 Generation of Greenhouse Gas Emissions
The proposed project would consist of a residential development with 424 single-family homes. The proposed project is anticipated to generate GHG emissions from area sources, energy usage, mobile sources, waste disposal, water usage, and construction equipment. The GHG emissions from the proposed project have been calculated with the CalEEMod model based on the construction and operational parameters detailed above in Section 8.1. A summary of the results is shown below in Table Q and the CalEEMod model run is provided in Appendix A.

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Packet Pg. 514 Attachment: Appendix A - Air Energy GHG Report (McLeish Planned Development Permit & Tentative Tract Map 38203 (P22-022))

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Packet Pg. 752 Attachment: Planning Commission Staff Report (McLeish Ranch Planned Development Permit & Tentative Tract Map 38203 (P22-022))

McLeish Ranch Residential Project, Air Quality, Energy, and GHG Emissions Impact Analysis City of San Jacinto

Table Q – Project Related Greenhouse Gas Annual Emissions Greenhouse Gas Emissions (Metric Tons per Year)
Category CO2 CH4 N2O CO2e
Area Sources1 7.29 <0.01 <0.01 7.32
Energy Usage2 1,104 0.10 0.01 1,107
Mobile Sources3 5,291 0.22 0.25 5,380
Solid Waste4 34.7 3.47 0.00 122
Water and Wastewater
5 30.8 0.56 0.01 49
Refrigeration6 -- -- -- 1.19
Construction7 157.1 0.01 0.01 159.4
Total GHG Emissions 6,624 4.36 0.28 6,826
Notes:
1 Area sources consist of GHG emissions from consumer products, architectural coatings, and landscaping equipment. 2 Energy usage consists of GHG emissions from electricity and natural gas usage. 3 Mobile sources consist of GHG emissions from vehicles. 4 Waste includes the CO2 and CH4 emissions created from the solid waste placed in landfills. 5 Water includes GHG emissions from electricity used for transport of water and processing of wastewater. 6 Refrigeration includes GHG emissions from refrigerants in air conditioning units. 7 Construction emissions amortized over 30 years as recommended in the SCAQMD GHG Working Group on November 19, 2009.

Source: CalEEMod Version 2022.1.

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Packet Pg. 515 Attachment: Appendix A - Air Energy GHG Report (McLeish Planned Development Permit & Tentative Tract Map 38203 (P22-022))

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Packet Pg. 753 Attachment: Planning Commission Staff Report (McLeish Ranch Planned Development Permit & Tentative Tract Map 38203 (P22-022)) McLeish Ranch Residential Project, Air Quality, Energy, and GHG Emissions Impact Analysis City of San Jacinto

11.0 REFERENCES
California Air Pollution Control Officers Association, California Emissions Estimator Model (CalEEMod) User Guide Version 2022.1, April 2022.

California Air Resources Board, 2017 Off-Road Diesel Emission Factor Update for NOx and PM, 2017.

California Air Resources Board, California’s 2017 Climate Change Scoping Plan, November 2017.

California Air Resources Board, California Greenhouse Gas Emissions for 2000 to 2020 Trends of Emissions and Other Indicators, October 26, 2022.

California Air Resources Board, California’s 2017 Climate Change Scoping Plan, November 2017.

California Air Resources Board, First Update to the Climate Change Scoping Plan, May 2014.

California Air Resources Board, Resolution 08-43, December 12, 2008.

California Air Resources Board, Final Staff Report Proposed Update to the SB 375 Greenhouse Gas Emission Reduction Targets, October 2017.

California Air Resources Board, The California Almanac of Emissions and Air Quality 2013 Edition.

California Department of Conservation, A General Guide for Ultramafic Rocks in California – Areas More Likely to Contain Naturally Occurring Asbestos, August, 2000.

California Energy Commission, 2022 Reference Appendices for the 2022 Building Energy Efficiency Standards, August 2022
City of San Jacinto, City of San Jacinto General Plan, November 15, 2022.

City of San Jacinto, San Jacinto Municipal Code Chapter 15.30 Dust Control, 2017.

Environmental Protection Agency, Nonattainment Major New Source Review Implementation Under 8- Hour Ozone National Ambient Air Quality Standard: Reconsideration, June 30, 2005.

Environmental Protection Agency, Inventory of U.S. Greenhouse Gas Emissions and Sinks 1990-2020, April 15, 2022
Office of Environmental Health Hazard Assessment (OEHHA), Air Toxics Hot Spots Program Risk Assessment Guidelines Guidance Manual for Preparation of Health Risk Assessments, February 2015.

RK Engineering Group, Inc., McLeish Ranch Residential Project (TTM 38203) Traffic Impact Study, June 1, 2022.

South Coast Air Quality Management District, CEQA Air Quality Handbook, April 1993.

South Coast Air Quality Management District, 2022 Air Quality Management Plan, December 2, 2022.

South Coast Air Quality Management District, Final 2012 Air Quality Management Plan, December, 2012.

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Packet Pg. 516 Attachment: Appendix A - Air Energy GHG Report (McLeish Planned Development Permit & Tentative Tract Map 38203 (P22-022))

5.1.i
Packet Pg. 754 Attachment: Planning Commission Staff Report (McLeish Ranch Planned Development Permit & Tentative Tract Map 38203 (P22-022)) McLeish Ranch Residential Project, Air Quality, Energy, and GHG Emissions Impact Analysis City of San Jacinto

South Coast Air Quality Management District, Final 2016 Air Quality Management Plan, March, 2017.

South Coast Air Quality Management District, Final Localized Significance Threshold Methodology, Revised July 2008.

South Coast Air Quality Management District, Revised Draft – 2012 Lead State Implementation Plan Los Angeles County, May 4, 2012.

South Coast Air Quality Management District, Rule 402 Nuisance, Adopted May 7, 1976.

South Coast Air Quality Management District, Rule 403 Fugitive Dust, Amended June 3, 2005.

South Coast Air Quality Management District, Rule 1108 Cutback Asphalt, Amended February 1, 1985.

South Coast Air Quality Management District, Rule 1108.1 Emulsified Asphalt, Amended November 4, 1983.

South Coast Air Quality Management District, Rule 1113 Architectural Coatings, Amended September 6, 2013.

South Coast Air Quality Management District, Rule 1143 Consumer Paint Thinners & Multi-Purpose Solvents, Amended December 3, 2010.

South Coast Air Quality Management District, SCAQMD Air Quality Significance Thresholds, March 2015.

South Coast Air Quality Management District, Draft Report Multiple Air Toxics Exposure Study in the South Coast Air Basin, MATES III, January 2008.

South Coast Air Quality Management District, MATES V Multiple Air Toxics Exposure Study in the South Coast AQMD Final Report, August 2021.

Southern California Association of Governments, 2020-2045 Regional Transportation Plan/Sustainable Communities Strategy (Connect SoCal), September 3, 2020.

Southern California Association of Governments, 2019 Federal Transportation Improvement Program (FTIP) Guidelines, September 2018.

University of California, Davis, Transportation Project-Level Carbon Monoxide Protocol, December 1997.

U.S. Geological Survey, Reported Historic Asbestos Mines, Historic Asbestos Prospects, and Other Natural Occurrences of Asbestos in California, 2011.

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Packet Pg. 517 Attachment: Appendix A - Air Energy GHG Report (McLeish Planned Development Permit & Tentative Tract Map 38203 (P22-022))

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Packet Pg. 755 Attachment: Planning Commission Staff Report (McLeish Ranch Planned Development Permit & Tentative Tract Map 38203 (P22-022))

McLeish Ranch Residential Project, Air Quality, Energy, and GHG Emissions Impact Analysis City of San Jacinto
Appendix  A

APPENDIX A
CalEEMod Model Daily Printouts

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Packet Pg. 518 Attachment: Appendix A - Air Energy GHG Report (McLeish Planned Development Permit & Tentative Tract Map 38203 (P22-022))

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Packet Pg. 756 Attachment: Planning Commission Staff Report (McLeish Ranch Planned Development Permit & Tentative Tract Map 38203 (P22-022)) McLeish Ranch Residential
Riverside-South Coast County, Summer

1.1 Land Usage
Project Characteristics -
Land Use - Total Project Site = 96 acres
Construction Phase - Construction schedule provided by applicant. Paving and Painting will concur concurrently with last 5 months of Building Construction Off-road Equipment -
Off-road Equipment -
Off-road Equipment - Grading - 2 Excavators, 1 Grader, 1 Rubber Tired Dozer, 2 Scrapers, 2 Crawler Tractors Off-road Equipment -
Off-road Equipment - Site Prep - 3 Rubber Tired Dozers, 4 Crawler Tractors Trips and VMT - 6 vendor truck trips added to Site Prep and Grading to account for water truck emissions Grading -
Land Uses Size Metric Lot Acreage Floor Surface Area Population Other Asphalt Surfaces 38.51 Acre 38.51 1,677,495.60 0
City Park 11.15 Acre 11.15 485,694.00 0
Single Family Housing 424.00 Dwelling Unit 46.33 1,002,915.00 1560

1.2 Other Project Characteristics
Urbanization
Climate Zone
Urban
10 Wind Speed (m/s) Precipitation Freq (Days) 2.4 28

1.0 Project Characteristics
Utility Company

1.3 User Entered Comments & Non-Default Data
Southern California Edison
2027 Operational Year
CO2 Intensity
(lb/MWhr)
390.98 0.033 CH4 Intensity
(lb/MWhr)

0.004 N2O Intensity
(lb/MWhr)
CalEEMod Version: CalEEMod.2020.4.0 Date: 10/17/2022 3:48 PM Page 1 of 32 McLeish Ranch Residential - Riverside-South Coast County, Summer EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied

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Packet Pg. 519
Attachment: Appendix A - Air Energy GHG Report (McLeish Planned Development Permit & Tentative Tract Map 38203 (P22-022))

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Packet Pg. 757
Attachment: Planning Commission Staff Report (McLeish Ranch Planned Development Permit & Tentative Tract Map 38203 (P22-022)) Vehicle Trips - Weekday Trip Rate of 9.43 per SFH from Traffic Study. No trips from park area Woodstoves - No Woodstoves or Fireplaces will be installed in proposed homes Construction Off-road Equipment Mitigation - Water Exposed Area 3x per day and Replace Ground Cover selected to account for SCAQMD Rule 403 and Section 15.30.010 Minimum requirements
Mobile Land Use Mitigation - Improve Ped Network on Project Site and Connecting Offsite Energy Mitigation - 2,027,732 kWh generated from solar PV panels Water Mitigation - Install low-flow fixtures and use water-efficient irrigation selected to account for Title 24 Part 11 min requirements Waste Mitigation - 50% reduction in waste selected to account for AB 341 Fleet Mix -
Table Name Column Name Default Value New Value
tblConstructionPhase NumDays 1,550.00 1,090.00
tblFireplaces NumberGas 360.40 0.00
tblFireplaces NumberNoFireplace 42.40 424.00
tblFireplaces NumberWood 21.20 0.00
tblLandUse LandUseSquareFeet 763,200.00 1,002,915.00
tblLandUse LotAcreage 137.66 46.33
tblLandUse Population 1,213.00 1,560.00
tblOffRoadEquipment LoadFactor 0.43 0.43
tblOffRoadEquipment LoadFactor 0.43 0.43
tblOffRoadEquipment OffRoadEquipmentType Tractors/Loaders/Backhoes Crawler Tractors tblOffRoadEquipment OffRoadEquipmentType Tractors/Loaders/Backhoes Crawler Tractors tblTripsAndVMT VendorTripNumber 0.00 6.00
tblTripsAndVMT VendorTripNumber 0.00 6.00
tblVehicleTrips ST_TR 1.96 0.00
tblVehicleTrips SU_TR 2.19 0.00
tblVehicleTrips WD_TR 0.78 0.00
tblVehicleTrips WD_TR 9.44 9.43
tblWoodstoves NumberCatalytic 21.20 0.00
tblWoodstoves NumberNoncatalytic 21.20 0.00
CalEEMod Version: CalEEMod.2020.4.0 Date: 10/17/2022 3:48 PM Page 2 of 32 McLeish Ranch Residential - Riverside-South Coast County, Summer EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied

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Packet Pg. 520
Attachment: Appendix A - Air Energy GHG Report (McLeish Planned Development Permit & Tentative Tract Map 38203 (P22-022))

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Packet Pg. 758
Attachment: Planning Commission Staff Report (McLeish Ranch Planned Development Permit & Tentative Tract Map 38203 (P22-022))

2.0 Emissions Summary

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
2023 5.9000 42.0592 60.5485 0.2012 22.0176 1.7582 23.7758 10.3959 1.6176 12.0135 0.0000 20,641.86 39 20,641.86
39 2.2440 1.3440 21,065.55
81 2024 5.5293 28.6477 57.9326 0.1967 14.4214 0.7795 15.2010 3.8829 0.7340 4.6168 0.0000 20,270.55 12 20,270.55
12 0.9033 1.3079 20,682.87
43 2025 5.1838 27.3460 55.3091 0.1921 14.4214 0.6913 15.1127 3.8828 0.6510 4.5339 0.0000 19,887.46 28 19,887.46
28 0.8811 1.2713 20,288.34
07 2026 4.9740 27.0352 53.1691 0.1878 14.4213 0.6882 15.1095 3.8828 0.6482 4.5310 0.0000 19,519.95 31 19,519.95
31 0.8653 1.2373 19,910.30
94 2027 68.7162 36.8172 74.1656 0.2291 16.9586 1.1643 18.1229 4.5557 1.0903 5.6460 0.0000 23,737.72 06 23,737.72
06 1.6159 1.2459 24,149.39
15 Maximum 68.7162 42.0592 74.1656 0.2291 22.0176 1.7582 23.7758 10.3959 1.6176 12.0135 0.0000 23,737.72 06 23,737.72
06 2.2440 1.3440 24,149.39
15 Unmitigated Construction
CalEEMod Version: CalEEMod.2020.4.0 Date: 10/17/2022 3:48 PM Page 3 of 32 McLeish Ranch Residential - Riverside-South Coast County, Summer EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied

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Packet Pg. 521
Attachment: Appendix A - Air Energy GHG Report (McLeish Planned Development Permit & Tentative Tract Map 38203 (P22-022))

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Packet Pg. 759
Attachment: Planning Commission Staff Report (McLeish Ranch Planned Development Permit & Tentative Tract Map 38203 (P22-022))

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
2023 5.9000 42.0592 60.5485 0.2012 14.4215 1.7582 15.2907 3.8922 1.6176 5.5098 0.0000 20,641.86 39 20,641.86
39 2.2440 1.3440 21,065.55
81 2024 5.5293 28.6477 57.9326 0.1967 14.4214 0.7795 15.2010 3.8829 0.7340 4.6168 0.0000 20,270.55 12 20,270.55
12 0.9033 1.3079 20,682.87
43 2025 5.1838 27.3460 55.3091 0.1921 14.4214 0.6913 15.1127 3.8828 0.6510 4.5339 0.0000 19,887.46 28 19,887.46
28 0.8811 1.2713 20,288.34
07 2026 4.9740 27.0352 53.1691 0.1878 14.4213 0.6882 15.1095 3.8828 0.6482 4.5310 0.0000 19,519.95 31 19,519.95
31 0.8653 1.2373 19,910.30
94 2027 68.7162 36.8172 74.1656 0.2291 16.9586 1.1643 18.1229 4.5557 1.0903 5.6460 0.0000 23,737.72 06 23,737.72
06 1.6159 1.2459 24,149.39
15 Maximum 68.7162 42.0592 74.1656 0.2291 16.9586 1.7582 18.1229 4.5557 1.6176 5.6460 0.0000 23,737.72 06 23,737.72
06 2.2440 1.3440 24,149.39
15 Mitigated Construction
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio-CO2 Total CO2 CH4 N20 CO2e
Percent
Reduction

0.00 0.00 0.00 0.00 9.24 0.00 9.72 24.45 0.00 20.75 0.00 0.00 0.00 0.00 0.00 0.00 CalEEMod Version: CalEEMod.2020.4.0 Date: 10/17/2022 3:48 PM Page 4 of 32 McLeish Ranch Residential - Riverside-South Coast County, Summer EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied

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Packet Pg. 522
Attachment: Appendix A - Air Energy GHG Report (McLeish Planned Development Permit & Tentative Tract Map 38203 (P22-022))

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Packet Pg. 760
Attachment: Planning Commission Staff Report (McLeish Ranch Planned Development Permit & Tentative Tract Map 38203 (P22-022))

2.2 Overall Operational
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category lb/day lb/day
Area 23.3738 0.4026 34.9525 1.8500e0030.1939 0.1939 0.1939 0.1939 0.0000 62.9970 62.9970 0.0603 0.0000 64.5057 Energy 0.3544 3.0282 1.2886 0.0193 0.2448 0.2448 0.2448 0.2448 3,865.805 8 3,865.805
8 0.0741 0.0709 3,888.778
4 Mobile 11.1623 13.7552 109.0958 0.2603 29.1922 0.1929 29.3851 7.7862 0.1808 7.9670 27,511.16 03 27,511.16
03 1.2292 1.1921 27,897.12
06 Total 34.8904 17.1860 145.3368 0.2815 29.1922 0.6316 29.8238 7.7862 0.6195 8.4058 0.0000 31,439.96 32 31,439.96
32 1.3636 1.2629 31,850.40
46 Unmitigated Operational
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category lb/day lb/day
Area 23.3738 0.4026 34.9525 1.8500e0030.1939 0.1939 0.1939 0.1939 0.0000 62.9970 62.9970 0.0603 0.0000 64.5057 Energy 0.3544 3.0282 1.2886 0.0193 0.2448 0.2448 0.2448 0.2448 3,865.805 8 3,865.805
8 0.0741 0.0709 3,888.778
4 Mobile 11.0669 13.5420 107.2627 0.2552 28.6083 0.1893 28.7976 7.6305 0.1774 7.8079 26,974.45 42 26,974.45
42 1.2113 1.1726 27,354.17
99 Total 34.7950 16.9729 143.5037 0.2764 28.6083 0.6281 29.2364 7.6305 0.6162 8.2467 0.0000 30,903.25 71 30,903.25
71 1.3458 1.2435 31,307.46
39 Mitigated Operational
CalEEMod Version: CalEEMod.2020.4.0 Date: 10/17/2022 3:48 PM Page 5 of 32 McLeish Ranch Residential - Riverside-South Coast County, Summer EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied

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Packet Pg. 523
Attachment: Appendix A - Air Energy GHG Report (McLeish Planned Development Permit & Tentative Tract Map 38203 (P22-022))

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Packet Pg. 761
Attachment: Planning Commission Staff Report (McLeish Ranch Planned Development Permit & Tentative Tract Map 38203 (P22-022))

3.0 Construction Detail
Construction Phase
Phase
Number
Phase Name Phase Type Start Date End Date Num Days
Week
Num Days Phase Description
1 Site Preparation Site Preparation 1/2/2023 3/24/2023 5 60 2 Grading Grading 3/25/2023 10/27/2023 5 155
3 Building Construction Building Construction 10/28/2023 12/31/2027 5 1090 4 Paving Paving 7/30/2027 12/30/2027 5 110
5 Architectural Coating Architectural Coating 7/30/2027 12/30/2027 5 110 OffRoad Equipment
Phase Name Offroad Equipment Type Amount Usage Hours Horse Power Load Factor Site Preparation Rubber Tired Dozers 3 8.00 247 0.40
Site Preparation Crawler Tractors 4 8.00 212 0.43
Grading Excavators 2 8.00 158 0.38
Grading Graders 1 8.00 187 0.41
Grading Rubber Tired Dozers 1 8.00 247 0.40
Grading Scrapers 2 8.00 367 0.48
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio-CO2 Total CO2 CH4 N20 CO2e
Percent
Reduction

0.27 1.24 1.26 1.80 2.00 0.57 1.97 2.00 0.54 1.89 0.00 1.71 1.71 1.31 1.54 1.70 Residential Indoor: 2,030,903; Residential Outdoor: 676,968; Non-Residential Indoor: 0; Non-Residential Outdoor: 0; Striped Parking Area:
100,650 (Architectural Coating – sqft)
Acres of Grading (Site Preparation Phase): 210
Acres of Grading (Grading Phase): 620
Acres of Paving: 38.51
CalEEMod Version: CalEEMod.2020.4.0 Date: 10/17/2022 3:48 PM Page 6 of 32 McLeish Ranch Residential - Riverside-South Coast County, Summer EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied

4.1.j
Packet Pg. 524
Attachment: Appendix A - Air Energy GHG Report (McLeish Planned Development Permit & Tentative Tract Map 38203 (P22-022))

5.1.i
Packet Pg. 762
Attachment: Planning Commission Staff Report (McLeish Ranch Planned Development Permit & Tentative Tract Map 38203 (P22-022)) Grading

3.1 Mitigation Measures Construction
Replace Ground Cover
Water Exposed Area
Crawler Tractors 2 8.00 212 0.43
Building Construction Cranes 1 7.00 231 0.29
Building Construction Forklifts 3 8.00 89 0.20
Building Construction Generator Sets 1 8.00 84 0.74
Building Construction Tractors/Loaders/Backhoes 3 7.00 97 0.37 Building Construction Welders 1 8.00 46 0.45
Paving Pavers 2 8.00 130 0.42
Paving Paving Equipment 2 8.00 132 0.36
Paving Rollers 2 8.00 80 0.38
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
Site Preparation 7 18.00 6.00 0.00 14.70 6.90 20.00 LD_Mix HDT_Mix HHDT Grading 8 20.00 6.00 0.00 14.70 6.90 20.00 LD_Mix HDT_Mix HHDT Building Construction 9 1,061.00 400.00 0.00 14.70 6.90 20.00 LD_Mix HDT_Mix HHDT Paving 6 15.00 0.00 0.00 14.70 6.90 20.00 LD_Mix HDT_Mix HHDT Architectural Coating 1 212.00 0.00 0.00 14.70 6.90 20.00 LD_Mix HDT_Mix HHDT CalEEMod Version: CalEEMod.2020.4.0 Date: 10/17/2022 3:48 PM Page 7 of 32 McLeish Ranch Residential - Riverside-South Coast County, Summer EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied

4.1.j
Packet Pg. 525
Attachment: Appendix A - Air Energy GHG Report (McLeish Planned Development Permit & Tentative Tract Map 38203 (P22-022))

5.1.i
Packet Pg. 763
Attachment: Planning Commission Staff Report (McLeish Ranch Planned Development Permit & Tentative Tract Map 38203 (P22-022))

3.2 Site Preparation - 2023
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category lb/day lb/day
Fugitive Dust 21.7780 0.0000 21.7780 10.3315 0.0000 10.3315 0.0000 0.0000 Off-Road 3.8257 41.8226 18.2686 0.0568 1.7555 1.7555 1.6151 1.6151 5,505.624 6 5,505.624
6 1.7806 5,550.140
4 Total 3.8257 41.8226 18.2686 0.0568 21.7780 1.7555 23.5335 10.3315 1.6151 11.9465 5,505.624 6 5,505.624
6 1.7806 5,550.140
4 Unmitigated Construction On-Site
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category lb/day lb/day
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 Vendor 6.7600e0030.1960 0.0807 1.0500e0030.0384 1.7100e0030.0401 0.0111 1.6300e0030.0127 111.1626 111.1626 1.1300e0030.0164 116.0860 Worker 0.0658 0.0406 0.6603 1.7700e0030.2012 9.4000e0040.2021 0.0534 8.7000e0040.0542 181.1165 181.1165 4.1400e0034.2200e003182.4783 Total 0.0725 0.2367 0.7411 2.8200e0030.2396 2.6500e0030.2423 0.0644 2.5000e0030.0669 292.2791 292.2791 5.2700e0030.0207 298.5644 Unmitigated Construction Off-Site
CalEEMod Version: CalEEMod.2020.4.0 Date: 10/17/2022 3:48 PM Page 8 of 32 McLeish Ranch Residential - Riverside-South Coast County, Summer EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied

4.1.j
Packet Pg. 526
Attachment: Appendix A - Air Energy GHG Report (McLeish Planned Development Permit & Tentative Tract Map 38203 (P22-022))

5.1.i
Packet Pg. 764
Attachment: Planning Commission Staff Report (McLeish Ranch Planned Development Permit & Tentative Tract Map 38203 (P22-022))

3.2 Site Preparation - 2023
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category lb/day lb/day
Fugitive Dust 8.0688 0.0000 8.0688 3.8278 0.0000 3.8278 0.0000 0.0000 Off-Road 3.8257 41.8226 18.2686 0.0568 1.7555 1.7555 1.6151 1.6151 0.0000 5,505.624 6 5,505.624
6 1.7806 5,550.140
4 Total 3.8257 41.8226 18.2686 0.0568 8.0688 1.7555 9.8242 3.8278 1.6151 5.4429 0.0000 5,505.624 6 5,505.624
6 1.7806 5,550.140
4 Mitigated Construction On-Site
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category lb/day lb/day
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 Vendor 6.7600e0030.1960 0.0807 1.0500e0030.0384 1.7100e0030.0401 0.0111 1.6300e0030.0127 111.1626 111.1626 1.1300e0030.0164 116.0860 Worker 0.0658 0.0406 0.6603 1.7700e0030.2012 9.4000e0040.2021 0.0534 8.7000e0040.0542 181.1165 181.1165 4.1400e0034.2200e003182.4783 Total 0.0725 0.2367 0.7411 2.8200e0030.2396 2.6500e0030.2423 0.0644 2.5000e0030.0669 292.2791 292.2791 5.2700e0030.0207 298.5644 Mitigated Construction Off-Site
CalEEMod Version: CalEEMod.2020.4.0 Date: 10/17/2022 3:48 PM Page 9 of 32 McLeish Ranch Residential - Riverside-South Coast County, Summer EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied

4.1.j
Packet Pg. 527
Attachment: Appendix A - Air Energy GHG Report (McLeish Planned Development Permit & Tentative Tract Map 38203 (P22-022))

5.1.i
Packet Pg. 765
Attachment: Planning Commission Staff Report (McLeish Ranch Planned Development Permit & Tentative Tract Map 38203 (P22-022))

3.3 Grading - 2023
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category lb/day lb/day
Fugitive Dust 10.2641 0.0000 10.2641 3.7683 0.0000 3.7683 0.0000 0.0000 Off-Road 3.9049 41.6648 28.0633 0.0715 1.6692 1.6692 1.5357 1.5357 6,920.636 0 6,920.636
0 2.2383 6,976.592
8 Total 3.9049 41.6648 28.0633 0.0715 10.2641 1.6692 11.9333 3.7683 1.5357 5.3040 6,920.636 0 6,920.636
0 2.2383 6,976.592
8 Unmitigated Construction On-Site
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category lb/day lb/day
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 Vendor 6.7600e0030.1960 0.0807 1.0500e0030.0384 1.7100e0030.0401 0.0111 1.6300e0030.0127 111.1626 111.1626 1.1300e0030.0164 116.0860 Worker 0.0731 0.0452 0.7337 1.9700e0030.2236 1.0500e0030.2246 0.0593 9.7000e0040.0603 201.2406 201.2406 4.5900e0034.6900e003202.7537 Total 0.0798 0.2412 0.8144 3.0200e0030.2620 2.7600e0030.2647 0.0704 2.6000e0030.0730 312.4032 312.4032 5.7200e0030.0211 318.8397 Unmitigated Construction Off-Site
CalEEMod Version: CalEEMod.2020.4.0 Date: 10/17/2022 3:48 PM Page 10 of 32 McLeish Ranch Residential - Riverside-South Coast County, Summer EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied

4.1.j
Packet Pg. 528
Attachment: Appendix A - Air Energy GHG Report (McLeish Planned Development Permit & Tentative Tract Map 38203 (P22-022))

5.1.i
Packet Pg. 766
Attachment: Planning Commission Staff Report (McLeish Ranch Planned Development Permit & Tentative Tract Map 38203 (P22-022))

3.3 Grading - 2023
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category lb/day lb/day
Fugitive Dust 3.8028 0.0000 3.8028 1.3961 0.0000 1.3961 0.0000 0.0000 Off-Road 3.9049 41.6648 28.0633 0.0715 1.6692 1.6692 1.5357 1.5357 0.0000 6,920.636 0 6,920.636
0 2.2383 6,976.592
8 Total 3.9049 41.6648 28.0633 0.0715 3.8028 1.6692 5.4721 1.3961 1.5357 2.9318 0.0000 6,920.636 0 6,920.636
0 2.2383 6,976.592
8 Mitigated Construction On-Site
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category lb/day lb/day
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 Vendor 6.7600e0030.1960 0.0807 1.0500e0030.0384 1.7100e0030.0401 0.0111 1.6300e0030.0127 111.1626 111.1626 1.1300e0030.0164 116.0860 Worker 0.0731 0.0452 0.7337 1.9700e0030.2236 1.0500e0030.2246 0.0593 9.7000e0040.0603 201.2406 201.2406 4.5900e0034.6900e003202.7537 Total 0.0798 0.2412 0.8144 3.0200e0030.2620 2.7600e0030.2647 0.0704 2.6000e0030.0730 312.4032 312.4032 5.7200e0030.0211 318.8397 Mitigated Construction Off-Site
CalEEMod Version: CalEEMod.2020.4.0 Date: 10/17/2022 3:48 PM Page 11 of 32 McLeish Ranch Residential - Riverside-South Coast County, Summer EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied

4.1.j
Packet Pg. 529
Attachment: Appendix A - Air Energy GHG Report (McLeish Planned Development Permit & Tentative Tract Map 38203 (P22-022))

5.1.i
Packet Pg. 767
Attachment: Planning Commission Staff Report (McLeish Ranch Planned Development Permit & Tentative Tract Map 38203 (P22-022))

3.4 Building Construction - 2023
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category lb/day lb/day
Off-Road 1.5728 14.3849 16.2440 0.0269 0.6997 0.6997 0.6584 0.6584 2,555.209 9 2,555.209
9 0.6079 2,570.406
1 Total 1.5728 14.3849 16.2440 0.0269 0.6997 0.6997 0.6584 0.6584 2,555.209 9 2,555.209
9 0.6079 2,570.406
1 Unmitigated Construction On-Site
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category lb/day lb/day
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 Vendor 0.4509 13.0683 5.3809 0.0699 2.5620 0.1138 2.6758 0.7377 0.1089 0.8466 7,410.840 1 7,410.840
1 0.0756 1.0951 7,739.069
2 Worker 3.8764 2.3953 38.9236 0.1043 11.8595 0.0556 11.9151 3.1452 0.0512 3.1964 10,675.81 39 10,675.81
39 0.2438 0.2489 10,756.08
29 Total 4.3272 15.4636 44.3045 0.1742 14.4215 0.1695 14.5909 3.8829 0.1601 4.0430 18,086.65 40 18,086.65
40 0.3193 1.3440 18,495.15
21 Unmitigated Construction Off-Site
CalEEMod Version: CalEEMod.2020.4.0 Date: 10/17/2022 3:48 PM Page 12 of 32 McLeish Ranch Residential - Riverside-South Coast County, Summer EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied

4.1.j
Packet Pg. 530
Attachment: Appendix A - Air Energy GHG Report (McLeish Planned Development Permit & Tentative Tract Map 38203 (P22-022))

5.1.i
Packet Pg. 768
Attachment: Planning Commission Staff Report (McLeish Ranch Planned Development Permit & Tentative Tract Map 38203 (P22-022))

3.4 Building Construction - 2023
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category lb/day lb/day
Off-Road 1.5728 14.3849 16.2440 0.0269 0.6997 0.6997 0.6584 0.6584 0.0000 2,555.209 9 2,555.209
9 0.6079 2,570.406
1 Total 1.5728 14.3849 16.2440 0.0269 0.6997 0.6997 0.6584 0.6584 0.0000 2,555.209 9 2,555.209
9 0.6079 2,570.406
1 Mitigated Construction On-Site
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category lb/day lb/day
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 Vendor 0.4509 13.0683 5.3809 0.0699 2.5620 0.1138 2.6758 0.7377 0.1089 0.8466 7,410.840 1 7,410.840
1 0.0756 1.0951 7,739.069
2 Worker 3.8764 2.3953 38.9236 0.1043 11.8595 0.0556 11.9151 3.1452 0.0512 3.1964 10,675.81 39 10,675.81
39 0.2438 0.2489 10,756.08
29 Total 4.3272 15.4636 44.3045 0.1742 14.4215 0.1695 14.5909 3.8829 0.1601 4.0430 18,086.65 40 18,086.65
40 0.3193 1.3440 18,495.15
21 Mitigated Construction Off-Site
CalEEMod Version: CalEEMod.2020.4.0 Date: 10/17/2022 3:48 PM Page 13 of 32 McLeish Ranch Residential - Riverside-South Coast County, Summer EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied

4.1.j
Packet Pg. 531
Attachment: Appendix A - Air Energy GHG Report (McLeish Planned Development Permit & Tentative Tract Map 38203 (P22-022))

5.1.i
Packet Pg. 769
Attachment: Planning Commission Staff Report (McLeish Ranch Planned Development Permit & Tentative Tract Map 38203 (P22-022))

3.4 Building Construction - 2024
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category lb/day lb/day
Off-Road 1.4716 13.4438 16.1668 0.0270 0.6133 0.6133 0.5769 0.5769 2,555.698 9 2,555.698
9 0.6044 2,570.807
7 Total 1.4716 13.4438 16.1668 0.0270 0.6133 0.6133 0.5769 0.5769 2,555.698 9 2,555.698
9 0.6044 2,570.807
7 Unmitigated Construction On-Site
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category lb/day lb/day
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 Vendor 0.4438 13.0693 5.3192 0.0688 2.5620 0.1131 2.6750 0.7377 0.1082 0.8458 7,296.623 2 7,296.623
2 0.0782 1.0766 7,619.405
1 Worker 3.6140 2.1347 36.4465 0.1010 11.8595 0.0532 11.9127 3.1452 0.0489 3.1941 10,418.22 92 10,418.22
92 0.2208 0.2313 10,492.66
16 Total 4.0578 15.2040 41.7657 0.1698 14.4214 0.1662 14.5877 3.8829 0.1571 4.0399 17,714.85 23 17,714.85
23 0.2990 1.3079 18,112.06
66 Unmitigated Construction Off-Site
CalEEMod Version: CalEEMod.2020.4.0 Date: 10/17/2022 3:48 PM Page 14 of 32 McLeish Ranch Residential - Riverside-South Coast County, Summer EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied

4.1.j
Packet Pg. 532
Attachment: Appendix A - Air Energy GHG Report (McLeish Planned Development Permit & Tentative Tract Map 38203 (P22-022))

5.1.i
Packet Pg. 770
Attachment: Planning Commission Staff Report (McLeish Ranch Planned Development Permit & Tentative Tract Map 38203 (P22-022))

3.4 Building Construction - 2024
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category lb/day lb/day
Off-Road 1.4716 13.4438 16.1668 0.0270 0.6133 0.6133 0.5769 0.5769 0.0000 2,555.698 9 2,555.698
9 0.6044 2,570.807
7 Total 1.4716 13.4438 16.1668 0.0270 0.6133 0.6133 0.5769 0.5769 0.0000 2,555.698 9 2,555.698
9 0.6044 2,570.807
7 Mitigated Construction On-Site
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category lb/day lb/day
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 Vendor 0.4438 13.0693 5.3192 0.0688 2.5620 0.1131 2.6750 0.7377 0.1082 0.8458 7,296.623 2 7,296.623
2 0.0782 1.0766 7,619.405
1 Worker 3.6140 2.1347 36.4465 0.1010 11.8595 0.0532 11.9127 3.1452 0.0489 3.1941 10,418.22 92 10,418.22
92 0.2208 0.2313 10,492.66
16 Total 4.0578 15.2040 41.7657 0.1698 14.4214 0.1662 14.5877 3.8829 0.1571 4.0399 17,714.85 23 17,714.85
23 0.2990 1.3079 18,112.06
66 Mitigated Construction Off-Site
CalEEMod Version: CalEEMod.2020.4.0 Date: 10/17/2022 3:48 PM Page 15 of 32 McLeish Ranch Residential - Riverside-South Coast County, Summer EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied

4.1.j
Packet Pg. 533
Attachment: Appendix A - Air Energy GHG Report (McLeish Planned Development Permit & Tentative Tract Map 38203 (P22-022))

5.1.i
Packet Pg. 771
Attachment: Planning Commission Staff Report (McLeish Ranch Planned Development Permit & Tentative Tract Map 38203 (P22-022))

3.4 Building Construction - 2025
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category lb/day lb/day
Off-Road 1.3674 12.4697 16.0847 0.0270 0.5276 0.5276 0.4963 0.4963 2,556.474 4 2,556.474
4 0.6010 2,571.498
1 Total 1.3674 12.4697 16.0847 0.0270 0.5276 0.5276 0.4963 0.4963 2,556.474 4 2,556.474
4 0.6010 2,571.498
1 Unmitigated Construction On-Site
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category lb/day lb/day
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 Vendor 0.4380 12.9618 5.2591 0.0676 2.5619 0.1131 2.6750 0.7376 0.1082 0.8459 7,168.003 8 7,168.003
8 0.0811 1.0555 7,484.573
1 Worker 3.3784 1.9145 33.9654 0.0976 11.8595 0.0506 11.9101 3.1452 0.0465 3.1917 10,162.98 47 10,162.98
47 0.1990 0.2158 10,232.26
95 Total 3.8164 14.8764 39.2245 0.1651 14.4214 0.1637 14.5851 3.8828 0.1548 4.0376 17,330.98 85 17,330.98
85 0.2801 1.2713 17,716.84
26 Unmitigated Construction Off-Site
CalEEMod Version: CalEEMod.2020.4.0 Date: 10/17/2022 3:48 PM Page 16 of 32 McLeish Ranch Residential - Riverside-South Coast County, Summer EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied

4.1.j
Packet Pg. 534
Attachment: Appendix A - Air Energy GHG Report (McLeish Planned Development Permit & Tentative Tract Map 38203 (P22-022))

5.1.i
Packet Pg. 772
Attachment: Planning Commission Staff Report (McLeish Ranch Planned Development Permit & Tentative Tract Map 38203 (P22-022))

3.4 Building Construction - 2025
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category lb/day lb/day
Off-Road 1.3674 12.4697 16.0847 0.0270 0.5276 0.5276 0.4963 0.4963 0.0000 2,556.474 4 2,556.474
4 0.6010 2,571.498
1 Total 1.3674 12.4697 16.0847 0.0270 0.5276 0.5276 0.4963 0.4963 0.0000 2,556.474 4 2,556.474
4 0.6010 2,571.498
1 Mitigated Construction On-Site
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category lb/day lb/day
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 Vendor 0.4380 12.9618 5.2591 0.0676 2.5619 0.1131 2.6750 0.7376 0.1082 0.8459 7,168.003 8 7,168.003
8 0.0811 1.0555 7,484.573
1 Worker 3.3784 1.9145 33.9654 0.0976 11.8595 0.0506 11.9101 3.1452 0.0465 3.1917 10,162.98 47 10,162.98
47 0.1990 0.2158 10,232.26
95 Total 3.8164 14.8764 39.2245 0.1651 14.4214 0.1637 14.5851 3.8828 0.1548 4.0376 17,330.98 85 17,330.98
85 0.2801 1.2713 17,716.84
26 Mitigated Construction Off-Site
CalEEMod Version: CalEEMod.2020.4.0 Date: 10/17/2022 3:48 PM Page 17 of 32 McLeish Ranch Residential - Riverside-South Coast County, Summer EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied

4.1.j
Packet Pg. 535
Attachment: Appendix A - Air Energy GHG Report (McLeish Planned Development Permit & Tentative Tract Map 38203 (P22-022))

5.1.i
Packet Pg. 773
Attachment: Planning Commission Staff Report (McLeish Ranch Planned Development Permit & Tentative Tract Map 38203 (P22-022))

3.4 Building Construction - 2026
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category lb/day lb/day
Off-Road 1.3674 12.4697 16.0847 0.0270 0.5276 0.5276 0.4963 0.4963 2,556.474 4 2,556.474
4 0.6010 2,571.498
1 Total 1.3674 12.4697 16.0847 0.0270 0.5276 0.5276 0.4963 0.4963 2,556.474 4 2,556.474
4 0.6010 2,571.498
1 Unmitigated Construction On-Site
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category lb/day lb/day
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 Vendor 0.4327 12.8320 5.2088 0.0663 2.5619 0.1127 2.6745 0.7376 0.1078 0.8454 7,037.589 2 7,037.589
2 0.0840 1.0343 7,347.909
2 Worker 3.1740 1.7335 31.8757 0.0945 11.8595 0.0479 11.9074 3.1452 0.0441 3.1893 9,925.889 6 9,925.889
6 0.1804 0.2030 9,990.902
2 Total 3.6066 14.5656 37.0844 0.1608 14.4213 0.1606 14.5819 3.8828 0.1519 4.0347 16,963.47 88 16,963.47
88 0.2644 1.2373 17,338.81
14 Unmitigated Construction Off-Site
CalEEMod Version: CalEEMod.2020.4.0 Date: 10/17/2022 3:48 PM Page 18 of 32 McLeish Ranch Residential - Riverside-South Coast County, Summer EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied

4.1.j
Packet Pg. 536
Attachment: Appendix A - Air Energy GHG Report (McLeish Planned Development Permit & Tentative Tract Map 38203 (P22-022))

5.1.i
Packet Pg. 774
Attachment: Planning Commission Staff Report (McLeish Ranch Planned Development Permit & Tentative Tract Map 38203 (P22-022))

3.4 Building Construction - 2026
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category lb/day lb/day
Off-Road 1.3674 12.4697 16.0847 0.0270 0.5276 0.5276 0.4963 0.4963 0.0000 2,556.474 4 2,556.474
4 0.6010 2,571.498
1 Total 1.3674 12.4697 16.0847 0.0270 0.5276 0.5276 0.4963 0.4963 0.0000 2,556.474 4 2,556.474
4 0.6010 2,571.498
1 Mitigated Construction On-Site
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category lb/day lb/day
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 Vendor 0.4327 12.8320 5.2088 0.0663 2.5619 0.1127 2.6745 0.7376 0.1078 0.8454 7,037.589 2 7,037.589
2 0.0840 1.0343 7,347.909
2 Worker 3.1740 1.7335 31.8757 0.0945 11.8595 0.0479 11.9074 3.1452 0.0441 3.1893 9,925.889 6 9,925.889
6 0.1804 0.2030 9,990.902
2 Total 3.6066 14.5656 37.0844 0.1608 14.4213 0.1606 14.5819 3.8828 0.1519 4.0347 16,963.47 88 16,963.47
88 0.2644 1.2373 17,338.81
14 Mitigated Construction Off-Site
CalEEMod Version: CalEEMod.2020.4.0 Date: 10/17/2022 3:48 PM Page 19 of 32 McLeish Ranch Residential - Riverside-South Coast County, Summer EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied

4.1.j
Packet Pg. 537
Attachment: Appendix A - Air Energy GHG Report (McLeish Planned Development Permit & Tentative Tract Map 38203 (P22-022))

5.1.i
Packet Pg. 775
Attachment: Planning Commission Staff Report (McLeish Ranch Planned Development Permit & Tentative Tract Map 38203 (P22-022))

3.4 Building Construction - 2027
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category lb/day lb/day
Off-Road 1.3674 12.4697 16.0847 0.0270 0.5276 0.5276 0.4963 0.4963 2,556.474 4 2,556.474
4 0.6010 2,571.498
1 Total 1.3674 12.4697 16.0847 0.0270 0.5276 0.5276 0.4963 0.4963 2,556.474 4 2,556.474
4 0.6010 2,571.498
1 Unmitigated Construction On-Site
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category lb/day lb/day
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 Vendor 0.4282 12.7016 5.1677 0.0650 2.5618 0.1121 2.6739 0.7376 0.1072 0.8448 6,900.397 7 6,900.397
7 0.0865 1.0124 7,204.264
8 Worker 2.9873 1.5806 30.0887 0.0918 11.8595 0.0451 11.9045 3.1452 0.0415 3.1867 9,714.291 4 9,714.291
4 0.1643 0.1923 9,775.705
6 Total 3.4155 14.2822 35.2564 0.1568 14.4213 0.1571 14.5784 3.8828 0.1487 4.0315 16,614.68 91 16,614.68
91 0.2508 1.2047 16,979.97
04 Unmitigated Construction Off-Site
CalEEMod Version: CalEEMod.2020.4.0 Date: 10/17/2022 3:48 PM Page 20 of 32 McLeish Ranch Residential - Riverside-South Coast County, Summer EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied

4.1.j
Packet Pg. 538
Attachment: Appendix A - Air Energy GHG Report (McLeish Planned Development Permit & Tentative Tract Map 38203 (P22-022))

5.1.i
Packet Pg. 776
Attachment: Planning Commission Staff Report (McLeish Ranch Planned Development Permit & Tentative Tract Map 38203 (P22-022))

3.4 Building Construction - 2027
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category lb/day lb/day
Off-Road 1.3674 12.4697 16.0847 0.0270 0.5276 0.5276 0.4963 0.4963 0.0000 2,556.474 4 2,556.474
4 0.6010 2,571.498
1 Total 1.3674 12.4697 16.0847 0.0270 0.5276 0.5276 0.4963 0.4963 0.0000 2,556.474 4 2,556.474
4 0.6010 2,571.498
1 Mitigated Construction On-Site
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category lb/day lb/day
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 Vendor 0.4282 12.7016 5.1677 0.0650 2.5618 0.1121 2.6739 0.7376 0.1072 0.8448 6,900.397 7 6,900.397
7 0.0865 1.0124 7,204.264
8 Worker 2.9873 1.5806 30.0887 0.0918 11.8595 0.0451 11.9045 3.1452 0.0415 3.1867 9,714.291 4 9,714.291
4 0.1643 0.1923 9,775.705
6 Total 3.4155 14.2822 35.2564 0.1568 14.4213 0.1571 14.5784 3.8828 0.1487 4.0315 16,614.68 91 16,614.68
91 0.2508 1.2047 16,979.97
04 Mitigated Construction Off-Site
CalEEMod Version: CalEEMod.2020.4.0 Date: 10/17/2022 3:48 PM Page 21 of 32 McLeish Ranch Residential - Riverside-South Coast County, Summer EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied

4.1.j
Packet Pg. 539
Attachment: Appendix A - Air Energy GHG Report (McLeish Planned Development Permit & Tentative Tract Map 38203 (P22-022))

5.1.i
Packet Pg. 777
Attachment: Planning Commission Staff Report (McLeish Ranch Planned Development Permit & Tentative Tract Map 38203 (P22-022))

3.5 Paving - 2027
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category lb/day lb/day
Off-Road 0.9152 8.5816 14.5780 0.0228 0.4185 0.4185 0.3850 0.3850 2,206.745 2 2,206.745
2 0.7137 2,224.587
8 Paving 0.9172 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 Total 1.8324 8.5816 14.5780 0.0228 0.4185 0.4185 0.3850 0.3850 2,206.745 2 2,206.745
2 0.7137 2,224.587
8 Unmitigated Construction On-Site
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category lb/day lb/day
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 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 Worker 0.0422 0.0224 0.4254 1.3000e0030.1677 6.4000e0040.1683 0.0445 5.9000e0040.0451 137.3368 137.3368 2.3200e0032.7200e003138.2051 Total 0.0422 0.0224 0.4254 1.3000e0030.1677 6.4000e0040.1683 0.0445 5.9000e0040.0451 137.3368 137.3368 2.3200e0032.7200e003138.2051 Unmitigated Construction Off-Site
CalEEMod Version: CalEEMod.2020.4.0 Date: 10/17/2022 3:48 PM Page 22 of 32 McLeish Ranch Residential - Riverside-South Coast County, Summer EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied

4.1.j
Packet Pg. 540
Attachment: Appendix A - Air Energy GHG Report (McLeish Planned Development Permit & Tentative Tract Map 38203 (P22-022))

5.1.i
Packet Pg. 778
Attachment: Planning Commission Staff Report (McLeish Ranch Planned Development Permit & Tentative Tract Map 38203 (P22-022))

3.5 Paving - 2027
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category lb/day lb/day
Off-Road 0.9152 8.5816 14.5780 0.0228 0.4185 0.4185 0.3850 0.3850 0.0000 2,206.745 2 2,206.745
2 0.7137 2,224.587
8 Paving 0.9172 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 Total 1.8324 8.5816 14.5780 0.0228 0.4185 0.4185 0.3850 0.3850 0.0000 2,206.745 2 2,206.745
2 0.7137 2,224.587
8 Mitigated Construction On-Site
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category lb/day lb/day
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 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 Worker 0.0422 0.0224 0.4254 1.3000e0030.1677 6.4000e0040.1683 0.0445 5.9000e0040.0451 137.3368 137.3368 2.3200e0032.7200e003138.2051 Total 0.0422 0.0224 0.4254 1.3000e0030.1677 6.4000e0040.1683 0.0445 5.9000e0040.0451 137.3368 137.3368 2.3200e0032.7200e003138.2051 Mitigated Construction Off-Site
CalEEMod Version: CalEEMod.2020.4.0 Date: 10/17/2022 3:48 PM Page 23 of 32 McLeish Ranch Residential - Riverside-South Coast County, Summer EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied

4.1.j
Packet Pg. 541
Attachment: Appendix A - Air Energy GHG Report (McLeish Planned Development Permit & Tentative Tract Map 38203 (P22-022))

5.1.i
Packet Pg. 779
Attachment: Planning Commission Staff Report (McLeish Ranch Planned Development Permit & Tentative Tract Map 38203 (P22-022))

3.6 Architectural Coating - 2027
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category lb/day lb/day
Archit. Coating 61.2909 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 Off-Road 0.1709 1.1455 1.8091 2.9700e0030.0515 0.0515 0.0515 0.0515 281.4481 281.4481 0.0154 281.8319 Total 61.4618 1.1455 1.8091 2.9700e0030.0515 0.0515 0.0515 0.0515 281.4481 281.4481 0.0154 281.8319 Unmitigated Construction On-Site
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category lb/day lb/day
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 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 Worker 0.5969 0.3158 6.0121 0.0183 2.3697 9.0000e0032.3787 0.6285 8.2800e0030.6367 1,941.027 1 1,941.027
1 0.0328 0.0384 1,953.298
4 Total 0.5969 0.3158 6.0121 0.0183 2.3697 9.0000e0032.3787 0.6285 8.2800e0030.6367 1,941.027 1 1,941.027
1 0.0328 0.0384 1,953.298
4 Unmitigated Construction Off-Site
CalEEMod Version: CalEEMod.2020.4.0 Date: 10/17/2022 3:48 PM Page 24 of 32 McLeish Ranch Residential - Riverside-South Coast County, Summer EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied

4.1.j
Packet Pg. 542
Attachment: Appendix A - Air Energy GHG Report (McLeish Planned Development Permit & Tentative Tract Map 38203 (P22-022))

5.1.i
Packet Pg. 780
Attachment: Planning Commission Staff Report (McLeish Ranch Planned Development Permit & Tentative Tract Map 38203 (P22-022))

3.6 Architectural Coating - 2027
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category lb/day lb/day
Archit. Coating 61.2909 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 Off-Road 0.1709 1.1455 1.8091 2.9700e0030.0515 0.0515 0.0515 0.0515 0.0000 281.4481 281.4481 0.0154 281.8319 Total 61.4618 1.1455 1.8091 2.9700e0030.0515 0.0515 0.0515 0.0515 0.0000 281.4481 281.4481 0.0154 281.8319 Mitigated Construction On-Site
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category lb/day lb/day
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 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 Worker 0.5969 0.3158 6.0121 0.0183 2.3697 9.0000e0032.3787 0.6285 8.2800e0030.6367 1,941.027 1 1,941.027
1 0.0328 0.0384 1,953.298
4 Total 0.5969 0.3158 6.0121 0.0183 2.3697 9.0000e0032.3787 0.6285 8.2800e0030.6367 1,941.027 1 1,941.027
1 0.0328 0.0384 1,953.298
4 Mitigated Construction Off-Site
CalEEMod Version: CalEEMod.2020.4.0 Date: 10/17/2022 3:48 PM Page 25 of 32 McLeish Ranch Residential - Riverside-South Coast County, Summer EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied

4.1.j
Packet Pg. 543
Attachment: Appendix A - Air Energy GHG Report (McLeish Planned Development Permit & Tentative Tract Map 38203 (P22-022))

5.1.i
Packet Pg. 781
Attachment: Planning Commission Staff Report (McLeish Ranch Planned Development Permit & Tentative Tract Map 38203 (P22-022))

4.0 Operational Detail - Mobile
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category lb/day lb/day
Mitigated 11.0669 13.5420 107.2627 0.2552 28.6083 0.1893 28.7976 7.6305 0.1774 7.8079 26,974.45 42 26,974.45
42 1.2113 1.1726 27,354.17
99 Unmitigated 11.1623 13.7552 109.0958 0.2603 29.1922 0.1929 29.3851 7.7862 0.1808 7.9670 27,511.16 03 27,511.16
03 1.2292 1.1921 27,897.12
06 4.1 Mitigation Measures Mobile

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
City Park 0.00 0.00 0.00
Other Asphalt Surfaces 0.00 0.00 0.00
Single Family Housing 3,998.32 4,044.96 3625.20 13,503,491 13,233,421 Total 3,998.32 4,044.96 3,625.20 13,503,491 13,233,421
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 City Park 16.60 8.40 6.90 33.00 48.00 19.00 66 28 6
Other Asphalt Surfaces 16.60 8.40 6.90 0.00 0.00 0.00 0 0 0 Single Family Housing 14.70 5.90 8.70 40.20 19.20 40.60 86 11 3 Improve Pedestrian Network
CalEEMod Version: CalEEMod.2020.4.0 Date: 10/17/2022 3:48 PM Page 26 of 32 McLeish Ranch Residential - Riverside-South Coast County, Summer EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied

4.1.j
Packet Pg. 544
Attachment: Appendix A - Air Energy GHG Report (McLeish Planned Development Permit & Tentative Tract Map 38203 (P22-022))

5.1.i
Packet Pg. 782
Attachment: Planning Commission Staff Report (McLeish Ranch Planned Development Permit & Tentative Tract Map 38203 (P22-022))

4.4 Fleet Mix
Land Use LDA LDT1 LDT2 MDV LHD1 LHD2 MHD HHD OBUS UBUS MCY SBUS MH City Park 0.544951 0.056922 0.175129 0.132247 0.024165 0.006855 0.011655 0.018450 0.000608 0.000293 0.023172 0.001089 0.004464 Other Asphalt Surfaces 0.544951 0.056922 0.175129 0.132247 0.024165 0.006855 0.011655 0.018450 0.000608 0.000293 0.023172 0.001089 0.004464 Single Family Housing 0.544951 0.056922 0.175129 0.132247 0.024165 0.006855 0.011655 0.018450 0.000608 0.000293 0.023172 0.001089 0.004464

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

0.3544 3.0282 1.2886 0.0193 0.2448 0.2448 0.2448 0.2448 3,865.805 8 3,865.805
8 0.0741 0.0709 3,888.778
4 NaturalGas
Unmitigated

0.3544 3.0282 1.2886 0.0193 0.2448 0.2448 0.2448 0.2448 3,865.805 8 3,865.805
8 0.0741 0.0709 3,888.778
4 Historical Energy Use: N

5.1 Mitigation Measures Energy
Kilowatt Hours of Renewable Electricity Generated
CalEEMod Version: CalEEMod.2020.4.0 Date: 10/17/2022 3:48 PM Page 27 of 32 McLeish Ranch Residential - Riverside-South Coast County, Summer EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied

4.1.j
Packet Pg. 545
Attachment: Appendix A - Air Energy GHG Report (McLeish Planned Development Permit & Tentative Tract Map 38203 (P22-022))

5.1.i
Packet Pg. 783
Attachment: Planning Commission Staff Report (McLeish Ranch Planned Development Permit & Tentative Tract Map 38203 (P22-022))

5.2 Energy by Land Use - NaturalGas
NaturalGa
s Use
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Land Use kBTU/yr lb/day lb/day
City Park 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 Other Asphalt
Surfaces
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 Single Family
Housing
32859.3 0.3544 3.0282 1.2886 0.0193 0.2448 0.2448 0.2448 0.2448 3,865.805 8 3,865.805
8 0.0741 0.0709 3,888.778
4 Total 0.3544 3.0282 1.2886 0.0193 0.2448 0.2448 0.2448 0.2448 3,865.805 8 3,865.805
8 0.0741 0.0709 3,888.778
4 Unmitigated
CalEEMod Version: CalEEMod.2020.4.0 Date: 10/17/2022 3:48 PM Page 28 of 32 McLeish Ranch Residential - Riverside-South Coast County, Summer EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied

4.1.j
Packet Pg. 546
Attachment: Appendix A - Air Energy GHG Report (McLeish Planned Development Permit & Tentative Tract Map 38203 (P22-022))

5.1.i
Packet Pg. 784
Attachment: Planning Commission Staff Report (McLeish Ranch Planned Development Permit & Tentative Tract Map 38203 (P22-022))

5.2 Energy by Land Use - NaturalGas

6.0 Area Detail

6.1 Mitigation Measures Area
NaturalGa
s Use
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Land Use kBTU/yr lb/day lb/day
City Park 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 Other Asphalt
Surfaces
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 Single Family
Housing

32.8593 0.3544 3.0282 1.2886 0.0193 0.2448 0.2448 0.2448 0.2448 3,865.805 8 3,865.805
8 0.0741 0.0709 3,888.778
4 Total 0.3544 3.0282 1.2886 0.0193 0.2448 0.2448 0.2448 0.2448 3,865.805 8 3,865.805
8 0.0741 0.0709 3,888.778
4 Mitigated
CalEEMod Version: CalEEMod.2020.4.0 Date: 10/17/2022 3:48 PM Page 29 of 32 McLeish Ranch Residential - Riverside-South Coast County, Summer EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied

4.1.j
Packet Pg. 547
Attachment: Appendix A - Air Energy GHG Report (McLeish Planned Development Permit & Tentative Tract Map 38203 (P22-022))

5.1.i
Packet Pg. 785
Attachment: Planning Commission Staff Report (McLeish Ranch Planned Development Permit & Tentative Tract Map 38203 (P22-022)) ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category lb/day lb/day
Mitigated 23.3738 0.4026 34.9525 1.8500e0030.1939 0.1939 0.1939 0.1939 0.0000 62.9970 62.9970 0.0603 0.0000 64.5057 Unmitigated 23.3738 0.4026 34.9525 1.8500e0030.1939 0.1939 0.1939 0.1939 0.0000 62.9970 62.9970 0.0603 0.0000 64.5057

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

1.8471 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000
Consumer
Products

20.4769 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 1.0498 0.4026 34.9525 1.8500e0030.1939 0.1939 0.1939 0.1939 62.9970 62.9970 0.0603 64.5057 Total 23.3738 0.4026 34.9525 1.8500e0030.1939 0.1939 0.1939 0.1939 0.0000 62.9970 62.9970 0.0603 0.0000 64.5057 Unmitigated
CalEEMod Version: CalEEMod.2020.4.0 Date: 10/17/2022 3:48 PM Page 30 of 32 McLeish Ranch Residential - Riverside-South Coast County, Summer EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied

4.1.j
Packet Pg. 548
Attachment: Appendix A - Air Energy GHG Report (McLeish Planned Development Permit & Tentative Tract Map 38203 (P22-022))

5.1.i
Packet Pg. 786
Attachment: Planning Commission Staff Report (McLeish Ranch Planned Development Permit & Tentative Tract Map 38203 (P22-022))

6.2 Area by SubCategory

7.0 Water Detail

7.1 Mitigation Measures Water
Install Low Flow Bathroom Faucet
Install Low Flow Kitchen Faucet
Install Low Flow Toilet
Install Low Flow Shower
Use Water Efficient Irrigation System
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
SubCategory lb/day lb/day
Architectural
Coating

1.8471 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000
Consumer
Products

20.4769 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 1.0498 0.4026 34.9525 1.8500e0030.1939 0.1939 0.1939 0.1939 62.9970 62.9970 0.0603 64.5057 Total 23.3738 0.4026 34.9525 1.8500e0030.1939 0.1939 0.1939 0.1939 0.0000 62.9970 62.9970 0.0603 0.0000 64.5057 Mitigated
CalEEMod Version: CalEEMod.2020.4.0 Date: 10/17/2022 3:48 PM Page 31 of 32 McLeish Ranch Residential - Riverside-South Coast County, Summer EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied

4.1.j
Packet Pg. 549
Attachment: Appendix A - Air Energy GHG Report (McLeish Planned Development Permit & Tentative Tract Map 38203 (P22-022))

5.1.i
Packet Pg. 787
Attachment: Planning Commission Staff Report (McLeish Ranch Planned Development Permit & Tentative Tract Map 38203 (P22-022))

11.0 Vegetation

8.0 Waste Detail

8.1 Mitigation Measures Waste
Institute Recycling and Composting Services

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
CalEEMod Version: CalEEMod.2020.4.0 Date: 10/17/2022 3:48 PM Page 32 of 32 McLeish Ranch Residential - Riverside-South Coast County, Summer EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied

4.1.j
Packet Pg. 550
Attachment: Appendix A - Air Energy GHG Report (McLeish Planned Development Permit & Tentative Tract Map 38203 (P22-022))

5.1.i
Packet Pg. 788
Attachment: Planning Commission Staff Report (McLeish Ranch Planned Development Permit & Tentative Tract Map 38203 (P22-022)) McLeish Ranch Residential
Riverside-South Coast County, Winter

1.1 Land Usage
Project Characteristics -
Land Use - Total Project Site = 96 acres
Construction Phase - Construction schedule provided by applicant. Paving and Painting will concur concurrently with last 5 months of Building Construction Off-road Equipment -
Off-road Equipment -
Off-road Equipment - Grading - 2 Excavators, 1 Grader, 1 Rubber Tired Dozer, 2 Scrapers, 2 Crawler Tractors Off-road Equipment -
Off-road Equipment - Site Prep - 3 Rubber Tired Dozers, 4 Crawler Tractors Trips and VMT - 6 vendor truck trips added to Site Prep and Grading to account for water truck emissions Grading -
Land Uses Size Metric Lot Acreage Floor Surface Area Population Other Asphalt Surfaces 38.51 Acre 38.51 1,677,495.60 0
City Park 11.15 Acre 11.15 485,694.00 0
Single Family Housing 424.00 Dwelling Unit 46.33 1,002,915.00 1560

1.2 Other Project Characteristics
Urbanization
Climate Zone
Urban
10 Wind Speed (m/s) Precipitation Freq (Days) 2.4 28

1.0 Project Characteristics
Utility Company

1.3 User Entered Comments & Non-Default Data
Southern California Edison
2027 Operational Year
CO2 Intensity
(lb/MWhr)
390.98 0.033 CH4 Intensity
(lb/MWhr)

0.004 N2O Intensity
(lb/MWhr)
CalEEMod Version: CalEEMod.2020.4.0 Date: 10/17/2022 3:46 PM Page 1 of 32 McLeish Ranch Residential - Riverside-South Coast County, Winter EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied

4.1.j
Packet Pg. 551
Attachment: Appendix A - Air Energy GHG Report (McLeish Planned Development Permit & Tentative Tract Map 38203 (P22-022))

5.1.i
Packet Pg. 789
Attachment: Planning Commission Staff Report (McLeish Ranch Planned Development Permit & Tentative Tract Map 38203 (P22-022)) Vehicle Trips - Weekday Trip Rate of 9.43 per SFH from Traffic Study. No trips from park area Woodstoves - No Woodstoves or Fireplaces will be installed in proposed homes Construction Off-road Equipment Mitigation - Water Exposed Area 3x per day and Replace Ground Cover selected to account for SCAQMD Rule 403 and Section 15.30.010 Minimum requirements
Mobile Land Use Mitigation - Improve Ped Network on Project Site and Connecting Offsite Energy Mitigation - 2,027,732 kWh generated from solar PV panels Water Mitigation - Install low-flow fixtures and use water-efficient irrigation selected to account for Title 24 Part 11 min requirements Waste Mitigation - 50% reduction in waste selected to account for AB 341 Fleet Mix -
Table Name Column Name Default Value New Value
tblConstructionPhase NumDays 1,550.00 1,090.00
tblFireplaces NumberGas 360.40 0.00
tblFireplaces NumberNoFireplace 42.40 424.00
tblFireplaces NumberWood 21.20 0.00
tblLandUse LandUseSquareFeet 763,200.00 1,002,915.00
tblLandUse LotAcreage 137.66 46.33
tblLandUse Population 1,213.00 1,560.00
tblOffRoadEquipment LoadFactor 0.43 0.43
tblOffRoadEquipment LoadFactor 0.43 0.43
tblOffRoadEquipment OffRoadEquipmentType Tractors/Loaders/Backhoes Crawler Tractors tblOffRoadEquipment OffRoadEquipmentType Tractors/Loaders/Backhoes Crawler Tractors tblTripsAndVMT VendorTripNumber 0.00 6.00
tblTripsAndVMT VendorTripNumber 0.00 6.00
tblVehicleTrips ST_TR 1.96 0.00
tblVehicleTrips SU_TR 2.19 0.00
tblVehicleTrips WD_TR 0.78 0.00
tblVehicleTrips WD_TR 9.44 9.43
tblWoodstoves NumberCatalytic 21.20 0.00
tblWoodstoves NumberNoncatalytic 21.20 0.00
CalEEMod Version: CalEEMod.2020.4.0 Date: 10/17/2022 3:46 PM Page 2 of 32 McLeish Ranch Residential - Riverside-South Coast County, Winter EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied

4.1.j
Packet Pg. 552
Attachment: Appendix A - Air Energy GHG Report (McLeish Planned Development Permit & Tentative Tract Map 38203 (P22-022))

5.1.i
Packet Pg. 790
Attachment: Planning Commission Staff Report (McLeish Ranch Planned Development Permit & Tentative Tract Map 38203 (P22-022))

2.0 Emissions Summary

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
2023 5.6236 42.0726 53.4127 0.1915 22.0176 1.7582 23.7758 10.3959 1.6176 12.0135 0.0000 19,657.68 85 19,657.68
85 2.2440 1.3535 20,084.15
12 2024 5.2798 29.5188 51.2759 0.1874 14.4214 0.7799 15.2014 3.8829 0.7344 4.6172 0.0000 19,312.16 85 19,312.16
85 0.9015 1.3168 19,727.10
48 2025 4.9574 28.2023 49.1531 0.1831 14.4214 0.6916 15.1130 3.8828 0.6514 4.5342 0.0000 18,955.18 61 18,955.18
61 0.8799 1.2798 19,358.54
80 2026 4.7686 27.8772 47.4274 0.1791 14.4213 0.6885 15.1099 3.8828 0.6485 4.5313 0.0000 18,611.42 81 18,611.42
81 0.8645 1.2454 19,004.15
61 2027 68.4956 37.6585 67.5840 0.2189 16.9586 1.1647 18.1233 4.5557 1.0906 5.6464 0.0000 22,656.36 38 22,656.36
38 1.6157 1.2545 23,070.59
18 Maximum 68.4956 42.0726 67.5840 0.2189 22.0176 1.7582 23.7758 10.3959 1.6176 12.0135 0.0000 22,656.36 38 22,656.36
38 2.2440 1.3535 23,070.59
18 Unmitigated Construction
CalEEMod Version: CalEEMod.2020.4.0 Date: 10/17/2022 3:46 PM Page 3 of 32 McLeish Ranch Residential - Riverside-South Coast County, Winter EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied

4.1.j
Packet Pg. 553
Attachment: Appendix A - Air Energy GHG Report (McLeish Planned Development Permit & Tentative Tract Map 38203 (P22-022))

5.1.i
Packet Pg. 791
Attachment: Planning Commission Staff Report (McLeish Ranch Planned Development Permit & Tentative Tract Map 38203 (P22-022))

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
2023 5.6236 42.0726 53.4127 0.1915 14.4215 1.7582 15.2911 3.8922 1.6176 5.5098 0.0000 19,657.68 85 19,657.68
85 2.2440 1.3535 20,084.15
12 2024 5.2798 29.5188 51.2759 0.1874 14.4214 0.7799 15.2014 3.8829 0.7344 4.6172 0.0000 19,312.16 85 19,312.16
85 0.9015 1.3168 19,727.10
48 2025 4.9574 28.2023 49.1531 0.1831 14.4214 0.6916 15.1130 3.8828 0.6514 4.5342 0.0000 18,955.18 61 18,955.18
61 0.8799 1.2798 19,358.54
80 2026 4.7686 27.8772 47.4274 0.1791 14.4213 0.6885 15.1099 3.8828 0.6485 4.5313 0.0000 18,611.42 81 18,611.42
81 0.8645 1.2454 19,004.15
61 2027 68.4956 37.6585 67.5840 0.2189 16.9586 1.1647 18.1233 4.5557 1.0906 5.6464 0.0000 22,656.36 38 22,656.36
38 1.6157 1.2545 23,070.59
18 Maximum 68.4956 42.0726 67.5840 0.2189 16.9586 1.7582 18.1233 4.5557 1.6176 5.6464 0.0000 22,656.36 38 22,656.36
38 2.2440 1.3535 23,070.59
18 Mitigated Construction
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio-CO2 Total CO2 CH4 N20 CO2e
Percent
Reduction

0.00 0.00 0.00 0.00 9.24 0.00 9.72 24.45 0.00 20.75 0.00 0.00 0.00 0.00 0.00 0.00 CalEEMod Version: CalEEMod.2020.4.0 Date: 10/17/2022 3:46 PM Page 4 of 32 McLeish Ranch Residential - Riverside-South Coast County, Winter EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied

4.1.j
Packet Pg. 554
Attachment: Appendix A - Air Energy GHG Report (McLeish Planned Development Permit & Tentative Tract Map 38203 (P22-022))

5.1.i
Packet Pg. 792
Attachment: Planning Commission Staff Report (McLeish Ranch Planned Development Permit & Tentative Tract Map 38203 (P22-022))

2.2 Overall Operational
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category lb/day lb/day
Area 23.3738 0.4026 34.9525 1.8500e0030.1939 0.1939 0.1939 0.1939 0.0000 62.9970 62.9970 0.0603 0.0000 64.5057 Energy 0.3544 3.0282 1.2886 0.0193 0.2448 0.2448 0.2448 0.2448 3,865.805 8 3,865.805
8 0.0741 0.0709 3,888.778
4 Mobile 9.4815 14.6244 96.8112 0.2417 29.1922 0.1930 29.3852 7.7862 0.1809 7.9671 25,545.77 33 25,545.77
33 1.2556 1.2169 25,939.79
04 Total 33.2097 18.0552 133.0522 0.2629 29.1922 0.6318 29.8239 7.7862 0.6197 8.4059 0.0000 29,474.57 62 29,474.57
62 1.3901 1.2877 29,893.07
44 Unmitigated Operational
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category lb/day lb/day
Area 23.3738 0.4026 34.9525 1.8500e0030.1939 0.1939 0.1939 0.1939 0.0000 62.9970 62.9970 0.0603 0.0000 64.5057 Energy 0.3544 3.0282 1.2886 0.0193 0.2448 0.2448 0.2448 0.2448 3,865.805 8 3,865.805
8 0.0741 0.0709 3,888.778
4 Mobile 9.3875 14.3976 95.2706 0.2370 28.6083 0.1894 28.7978 7.6305 0.1776 7.8081 25,048.59 44 25,048.59
44 1.2383 1.1971 25,436.28
00 Total 33.1156 17.8284 131.5116 0.2582 28.6083 0.6282 29.2365 7.6305 0.6163 8.2468 0.0000 28,977.39 73 28,977.39
73 1.3727 1.2679 29,389.56
40 Mitigated Operational
CalEEMod Version: CalEEMod.2020.4.0 Date: 10/17/2022 3:46 PM Page 5 of 32 McLeish Ranch Residential - Riverside-South Coast County, Winter EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied

4.1.j
Packet Pg. 555
Attachment: Appendix A - Air Energy GHG Report (McLeish Planned Development Permit & Tentative Tract Map 38203 (P22-022))

5.1.i
Packet Pg. 793
Attachment: Planning Commission Staff Report (McLeish Ranch Planned Development Permit & Tentative Tract Map 38203 (P22-022))

3.0 Construction Detail
Construction Phase
Phase
Number
Phase Name Phase Type Start Date End Date Num Days
Week
Num Days Phase Description
1 Site Preparation Site Preparation 1/2/2023 3/24/2023 5 60 2 Grading Grading 3/25/2023 10/27/2023 5 155
3 Building Construction Building Construction 10/28/2023 12/31/2027 5 1090 4 Paving Paving 7/30/2027 12/30/2027 5 110
5 Architectural Coating Architectural Coating 7/30/2027 12/30/2027 5 110 OffRoad Equipment
Phase Name Offroad Equipment Type Amount Usage Hours Horse Power Load Factor Site Preparation Rubber Tired Dozers 3 8.00 247 0.40
Site Preparation Crawler Tractors 4 8.00 212 0.43
Grading Excavators 2 8.00 158 0.38
Grading Graders 1 8.00 187 0.41
Grading Rubber Tired Dozers 1 8.00 247 0.40
Grading Scrapers 2 8.00 367 0.48
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio-CO2 Total CO2 CH4 N20 CO2e
Percent
Reduction

0.28 1.26 1.16 1.79 2.00 0.57 1.97 2.00 0.54 1.89 0.00 1.69 1.69 1.25 1.54 1.68 Residential Indoor: 2,030,903; Residential Outdoor: 676,968; Non-Residential Indoor: 0; Non-Residential Outdoor: 0; Striped Parking Area:
100,650 (Architectural Coating – sqft)
Acres of Grading (Site Preparation Phase): 210
Acres of Grading (Grading Phase): 620
Acres of Paving: 38.51
CalEEMod Version: CalEEMod.2020.4.0 Date: 10/17/2022 3:46 PM Page 6 of 32 McLeish Ranch Residential - Riverside-South Coast County, Winter EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied

4.1.j
Packet Pg. 556
Attachment: Appendix A - Air Energy GHG Report (McLeish Planned Development Permit & Tentative Tract Map 38203 (P22-022))

5.1.i
Packet Pg. 794
Attachment: Planning Commission Staff Report (McLeish Ranch Planned Development Permit & Tentative Tract Map 38203 (P22-022)) Grading

3.1 Mitigation Measures Construction
Replace Ground Cover
Water Exposed Area
Crawler Tractors 2 8.00 212 0.43
Building Construction Cranes 1 7.00 231 0.29
Building Construction Forklifts 3 8.00 89 0.20
Building Construction Generator Sets 1 8.00 84 0.74
Building Construction Tractors/Loaders/Backhoes 3 7.00 97 0.37 Building Construction Welders 1 8.00 46 0.45
Paving Pavers 2 8.00 130 0.42
Paving Paving Equipment 2 8.00 132 0.36
Paving Rollers 2 8.00 80 0.38
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
Site Preparation 7 18.00 6.00 0.00 14.70 6.90 20.00 LD_Mix HDT_Mix HHDT Grading 8 20.00 6.00 0.00 14.70 6.90 20.00 LD_Mix HDT_Mix HHDT Building Construction 9 1,061.00 400.00 0.00 14.70 6.90 20.00 LD_Mix HDT_Mix HHDT Paving 6 15.00 0.00 0.00 14.70 6.90 20.00 LD_Mix HDT_Mix HHDT Architectural Coating 1 212.00 0.00 0.00 14.70 6.90 20.00 LD_Mix HDT_Mix HHDT CalEEMod Version: CalEEMod.2020.4.0 Date: 10/17/2022 3:46 PM Page 7 of 32 McLeish Ranch Residential - Riverside-South Coast County, Winter EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied

4.1.j
Packet Pg. 557
Attachment: Appendix A - Air Energy GHG Report (McLeish Planned Development Permit & Tentative Tract Map 38203 (P22-022))

5.1.i
Packet Pg. 795
Attachment: Planning Commission Staff Report (McLeish Ranch Planned Development Permit & Tentative Tract Map 38203 (P22-022))

3.2 Site Preparation - 2023
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category lb/day lb/day
Fugitive Dust 21.7780 0.0000 21.7780 10.3315 0.0000 10.3315 0.0000 0.0000 Off-Road 3.8257 41.8226 18.2686 0.0568 1.7555 1.7555 1.6151 1.6151 5,505.624 6 5,505.624
6 1.7806 5,550.140
4 Total 3.8257 41.8226 18.2686 0.0568 21.7780 1.7555 23.5335 10.3315 1.6151 11.9465 5,505.624 6 5,505.624
6 1.7806 5,550.140
4 Unmitigated Construction On-Site
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category lb/day lb/day
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 Vendor 6.2600e0030.2079 0.0834 1.0500e0030.0384 1.7100e0030.0401 0.0111 1.6400e0030.0127 111.4385 111.4385 1.1100e0030.0165 116.3777 Worker 0.0616 0.0422 0.5362 1.6000e0030.2012 9.4000e0040.2021 0.0534 8.7000e0040.0542 164.1079 164.1079 4.1200e0034.3200e003165.4988 Total 0.0679 0.2501 0.6196 2.6500e0030.2396 2.6500e0030.2423 0.0644 2.5100e0030.0669 275.5463 275.5463 5.2300e0030.0208 281.8765 Unmitigated Construction Off-Site
CalEEMod Version: CalEEMod.2020.4.0 Date: 10/17/2022 3:46 PM Page 8 of 32 McLeish Ranch Residential - Riverside-South Coast County, Winter EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied

4.1.j
Packet Pg. 558
Attachment: Appendix A - Air Energy GHG Report (McLeish Planned Development Permit & Tentative Tract Map 38203 (P22-022))

5.1.i
Packet Pg. 796
Attachment: Planning Commission Staff Report (McLeish Ranch Planned Development Permit & Tentative Tract Map 38203 (P22-022))

3.2 Site Preparation - 2023
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category lb/day lb/day
Fugitive Dust 8.0688 0.0000 8.0688 3.8278 0.0000 3.8278 0.0000 0.0000 Off-Road 3.8257 41.8226 18.2686 0.0568 1.7555 1.7555 1.6151 1.6151 0.0000 5,505.624 6 5,505.624
6 1.7806 5,550.140
4 Total 3.8257 41.8226 18.2686 0.0568 8.0688 1.7555 9.8242 3.8278 1.6151 5.4429 0.0000 5,505.624 6 5,505.624
6 1.7806 5,550.140
4 Mitigated Construction On-Site
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category lb/day lb/day
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 Vendor 6.2600e0030.2079 0.0834 1.0500e0030.0384 1.7100e0030.0401 0.0111 1.6400e0030.0127 111.4385 111.4385 1.1100e0030.0165 116.3777 Worker 0.0616 0.0422 0.5362 1.6000e0030.2012 9.4000e0040.2021 0.0534 8.7000e0040.0542 164.1079 164.1079 4.1200e0034.3200e003165.4988 Total 0.0679 0.2501 0.6196 2.6500e0030.2396 2.6500e0030.2423 0.0644 2.5100e0030.0669 275.5463 275.5463 5.2300e0030.0208 281.8765 Mitigated Construction Off-Site
CalEEMod Version: CalEEMod.2020.4.0 Date: 10/17/2022 3:46 PM Page 9 of 32 McLeish Ranch Residential - Riverside-South Coast County, Winter EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied

4.1.j
Packet Pg. 559
Attachment: Appendix A - Air Energy GHG Report (McLeish Planned Development Permit & Tentative Tract Map 38203 (P22-022))

5.1.i
Packet Pg. 797
Attachment: Planning Commission Staff Report (McLeish Ranch Planned Development Permit & Tentative Tract Map 38203 (P22-022))

3.3 Grading - 2023
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category lb/day lb/day
Fugitive Dust 10.2641 0.0000 10.2641 3.7683 0.0000 3.7683 0.0000 0.0000 Off-Road 3.9049 41.6648 28.0633 0.0715 1.6692 1.6692 1.5357 1.5357 6,920.636 0 6,920.636
0 2.2383 6,976.592
8 Total 3.9049 41.6648 28.0633 0.0715 10.2641 1.6692 11.9333 3.7683 1.5357 5.3040 6,920.636 0 6,920.636
0 2.2383 6,976.592
8 Unmitigated Construction On-Site
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category lb/day lb/day
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 Vendor 6.2600e0030.2079 0.0834 1.0500e0030.0384 1.7100e0030.0401 0.0111 1.6400e0030.0127 111.4385 111.4385 1.1100e0030.0165 116.3777 Worker 0.0685 0.0469 0.5958 1.7800e0030.2236 1.0500e0030.2246 0.0593 9.7000e0040.0603 182.3421 182.3421 4.5800e0034.8000e003183.8876 Total 0.0748 0.2547 0.6792 2.8300e0030.2620 2.7600e0030.2647 0.0704 2.6100e0030.0730 293.7806 293.7806 5.6900e0030.0213 300.2652 Unmitigated Construction Off-Site
CalEEMod Version: CalEEMod.2020.4.0 Date: 10/17/2022 3:46 PM Page 10 of 32 McLeish Ranch Residential - Riverside-South Coast County, Winter EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied

4.1.j
Packet Pg. 560
Attachment: Appendix A - Air Energy GHG Report (McLeish Planned Development Permit & Tentative Tract Map 38203 (P22-022))

5.1.i
Packet Pg. 798
Attachment: Planning Commission Staff Report (McLeish Ranch Planned Development Permit & Tentative Tract Map 38203 (P22-022))

3.3 Grading - 2023
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category lb/day lb/day
Fugitive Dust 3.8028 0.0000 3.8028 1.3961 0.0000 1.3961 0.0000 0.0000 Off-Road 3.9049 41.6648 28.0633 0.0715 1.6692 1.6692 1.5357 1.5357 0.0000 6,920.636 0 6,920.636
0 2.2383 6,976.592
8 Total 3.9049 41.6648 28.0633 0.0715 3.8028 1.6692 5.4721 1.3961 1.5357 2.9318 0.0000 6,920.636 0 6,920.636
0 2.2383 6,976.592
8 Mitigated Construction On-Site
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category lb/day lb/day
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 Vendor 6.2600e0030.2079 0.0834 1.0500e0030.0384 1.7100e0030.0401 0.0111 1.6400e0030.0127 111.4385 111.4385 1.1100e0030.0165 116.3777 Worker 0.0685 0.0469 0.5958 1.7800e0030.2236 1.0500e0030.2246 0.0593 9.7000e0040.0603 182.3421 182.3421 4.5800e0034.8000e003183.8876 Total 0.0748 0.2547 0.6792 2.8300e0030.2620 2.7600e0030.2647 0.0704 2.6100e0030.0730 293.7806 293.7806 5.6900e0030.0213 300.2652 Mitigated Construction Off-Site
CalEEMod Version: CalEEMod.2020.4.0 Date: 10/17/2022 3:46 PM Page 11 of 32 McLeish Ranch Residential - Riverside-South Coast County, Winter EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied

4.1.j
Packet Pg. 561
Attachment: Appendix A - Air Energy GHG Report (McLeish Planned Development Permit & Tentative Tract Map 38203 (P22-022))

5.1.i
Packet Pg. 799
Attachment: Planning Commission Staff Report (McLeish Ranch Planned Development Permit & Tentative Tract Map 38203 (P22-022))

3.4 Building Construction - 2023
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category lb/day lb/day
Off-Road 1.5728 14.3849 16.2440 0.0269 0.6997 0.6997 0.6584 0.6584 2,555.209 9 2,555.209
9 0.6079 2,570.406
1 Total 1.5728 14.3849 16.2440 0.0269 0.6997 0.6997 0.6584 0.6584 2,555.209 9 2,555.209
9 0.6079 2,570.406
1 Unmitigated Construction On-Site
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category lb/day lb/day
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 Vendor 0.4175 13.8592 5.5620 0.0701 2.5620 0.1142 2.6762 0.7377 0.1093 0.8469 7,429.232 0 7,429.232
0 0.0741 1.0988 7,758.510
5 Worker 3.6333 2.4853 31.6067 0.0945 11.8595 0.0556 11.9151 3.1452 0.0512 3.1964 9,673.246 6 9,673.246
6 0.2429 0.2548 9,755.234
6 Total 4.0508 16.3445 37.1687 0.1646 14.4215 0.1699 14.5913 3.8829 0.1605 4.0434 17,102.47 85 17,102.47
85 0.3170 1.3535 17,513.74
52 Unmitigated Construction Off-Site
CalEEMod Version: CalEEMod.2020.4.0 Date: 10/17/2022 3:46 PM Page 12 of 32 McLeish Ranch Residential - Riverside-South Coast County, Winter EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied

4.1.j
Packet Pg. 562
Attachment: Appendix A - Air Energy GHG Report (McLeish Planned Development Permit & Tentative Tract Map 38203 (P22-022))

5.1.i
Packet Pg. 800
Attachment: Planning Commission Staff Report (McLeish Ranch Planned Development Permit & Tentative Tract Map 38203 (P22-022))

3.4 Building Construction - 2023
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category lb/day lb/day
Off-Road 1.5728 14.3849 16.2440 0.0269 0.6997 0.6997 0.6584 0.6584 0.0000 2,555.209 9 2,555.209
9 0.6079 2,570.406
1 Total 1.5728 14.3849 16.2440 0.0269 0.6997 0.6997 0.6584 0.6584 0.0000 2,555.209 9 2,555.209
9 0.6079 2,570.406
1 Mitigated Construction On-Site
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category lb/day lb/day
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 Vendor 0.4175 13.8592 5.5620 0.0701 2.5620 0.1142 2.6762 0.7377 0.1093 0.8469 7,429.232 0 7,429.232
0 0.0741 1.0988 7,758.510
5 Worker 3.6333 2.4853 31.6067 0.0945 11.8595 0.0556 11.9151 3.1452 0.0512 3.1964 9,673.246 6 9,673.246
6 0.2429 0.2548 9,755.234
6 Total 4.0508 16.3445 37.1687 0.1646 14.4215 0.1699 14.5913 3.8829 0.1605 4.0434 17,102.47 85 17,102.47
85 0.3170 1.3535 17,513.74
52 Mitigated Construction Off-Site
CalEEMod Version: CalEEMod.2020.4.0 Date: 10/17/2022 3:46 PM Page 13 of 32 McLeish Ranch Residential - Riverside-South Coast County, Winter EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied

4.1.j
Packet Pg. 563
Attachment: Appendix A - Air Energy GHG Report (McLeish Planned Development Permit & Tentative Tract Map 38203 (P22-022))

5.1.i
Packet Pg. 801
Attachment: Planning Commission Staff Report (McLeish Ranch Planned Development Permit & Tentative Tract Map 38203 (P22-022))

3.4 Building Construction - 2024
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category lb/day lb/day
Off-Road 1.4716 13.4438 16.1668 0.0270 0.6133 0.6133 0.5769 0.5769 2,555.698 9 2,555.698
9 0.6044 2,570.807
7 Total 1.4716 13.4438 16.1668 0.0270 0.6133 0.6133 0.5769 0.5769 2,555.698 9 2,555.698
9 0.6044 2,570.807
7 Unmitigated Construction On-Site
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category lb/day lb/day
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 Vendor 0.4105 13.8611 5.4999 0.0690 2.5620 0.1134 2.6754 0.7377 0.1085 0.8462 7,314.858 3 7,314.858
3 0.0767 1.0802 7,638.664
4 Worker 3.3977 2.2139 29.6092 0.0915 11.8595 0.0532 11.9127 3.1452 0.0489 3.1941 9,441.611 3 9,441.611
3 0.2204 0.2366 9,517.632
8 Total 3.8082 16.0750 35.1091 0.1605 14.4214 0.1666 14.5880 3.8829 0.1575 4.0403 16,756.46 96 16,756.46
96 0.2972 1.3168 17,156.29
71 Unmitigated Construction Off-Site
CalEEMod Version: CalEEMod.2020.4.0 Date: 10/17/2022 3:46 PM Page 14 of 32 McLeish Ranch Residential - Riverside-South Coast County, Winter EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied

4.1.j
Packet Pg. 564
Attachment: Appendix A - Air Energy GHG Report (McLeish Planned Development Permit & Tentative Tract Map 38203 (P22-022))

5.1.i
Packet Pg. 802
Attachment: Planning Commission Staff Report (McLeish Ranch Planned Development Permit & Tentative Tract Map 38203 (P22-022))

3.4 Building Construction - 2024
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category lb/day lb/day
Off-Road 1.4716 13.4438 16.1668 0.0270 0.6133 0.6133 0.5769 0.5769 0.0000 2,555.698 9 2,555.698
9 0.6044 2,570.807
7 Total 1.4716 13.4438 16.1668 0.0270 0.6133 0.6133 0.5769 0.5769 0.0000 2,555.698 9 2,555.698
9 0.6044 2,570.807
7 Mitigated Construction On-Site
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category lb/day lb/day
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 Vendor 0.4105 13.8611 5.4999 0.0690 2.5620 0.1134 2.6754 0.7377 0.1085 0.8462 7,314.858 3 7,314.858
3 0.0767 1.0802 7,638.664
4 Worker 3.3977 2.2139 29.6092 0.0915 11.8595 0.0532 11.9127 3.1452 0.0489 3.1941 9,441.611 3 9,441.611
3 0.2204 0.2366 9,517.632
8 Total 3.8082 16.0750 35.1091 0.1605 14.4214 0.1666 14.5880 3.8829 0.1575 4.0403 16,756.46 96 16,756.46
96 0.2972 1.3168 17,156.29
71 Mitigated Construction Off-Site
CalEEMod Version: CalEEMod.2020.4.0 Date: 10/17/2022 3:46 PM Page 15 of 32 McLeish Ranch Residential - Riverside-South Coast County, Winter EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied

4.1.j
Packet Pg. 565
Attachment: Appendix A - Air Energy GHG Report (McLeish Planned Development Permit & Tentative Tract Map 38203 (P22-022))

5.1.i
Packet Pg. 803
Attachment: Planning Commission Staff Report (McLeish Ranch Planned Development Permit & Tentative Tract Map 38203 (P22-022))

3.4 Building Construction - 2025
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category lb/day lb/day
Off-Road 1.3674 12.4697 16.0847 0.0270 0.5276 0.5276 0.4963 0.4963 2,556.474 4 2,556.474
4 0.6010 2,571.498
1 Total 1.3674 12.4697 16.0847 0.0270 0.5276 0.5276 0.4963 0.4963 2,556.474 4 2,556.474
4 0.6010 2,571.498
1 Unmitigated Construction On-Site
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category lb/day lb/day
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 Vendor 0.4048 13.7476 5.4396 0.0677 2.5619 0.1135 2.6754 0.7376 0.1086 0.8462 7,186.021 0 7,186.021
0 0.0796 1.0590 7,503.590
1 Worker 3.1852 1.9850 27.6289 0.0884 11.8595 0.0506 11.9101 3.1452 0.0465 3.1917 9,212.690 7 9,212.690
7 0.1993 0.2208 9,283.459
8 Total 3.5900 15.7326 33.0684 0.1562 14.4214 0.1641 14.5855 3.8828 0.1551 4.0380 16,398.71 17 16,398.71
17 0.2789 1.2798 16,787.05
00 Unmitigated Construction Off-Site
CalEEMod Version: CalEEMod.2020.4.0 Date: 10/17/2022 3:46 PM Page 16 of 32 McLeish Ranch Residential - Riverside-South Coast County, Winter EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied

4.1.j
Packet Pg. 566
Attachment: Appendix A - Air Energy GHG Report (McLeish Planned Development Permit & Tentative Tract Map 38203 (P22-022))

5.1.i
Packet Pg. 804
Attachment: Planning Commission Staff Report (McLeish Ranch Planned Development Permit & Tentative Tract Map 38203 (P22-022))

3.4 Building Construction - 2025
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category lb/day lb/day
Off-Road 1.3674 12.4697 16.0847 0.0270 0.5276 0.5276 0.4963 0.4963 0.0000 2,556.474 4 2,556.474
4 0.6010 2,571.498
1 Total 1.3674 12.4697 16.0847 0.0270 0.5276 0.5276 0.4963 0.4963 0.0000 2,556.474 4 2,556.474
4 0.6010 2,571.498
1 Mitigated Construction On-Site
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category lb/day lb/day
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 Vendor 0.4048 13.7476 5.4396 0.0677 2.5619 0.1135 2.6754 0.7376 0.1086 0.8462 7,186.021 0 7,186.021
0 0.0796 1.0590 7,503.590
1 Worker 3.1852 1.9850 27.6289 0.0884 11.8595 0.0506 11.9101 3.1452 0.0465 3.1917 9,212.690 7 9,212.690
7 0.1993 0.2208 9,283.459
8 Total 3.5900 15.7326 33.0684 0.1562 14.4214 0.1641 14.5855 3.8828 0.1551 4.0380 16,398.71 17 16,398.71
17 0.2789 1.2798 16,787.05
00 Mitigated Construction Off-Site
CalEEMod Version: CalEEMod.2020.4.0 Date: 10/17/2022 3:46 PM Page 17 of 32 McLeish Ranch Residential - Riverside-South Coast County, Winter EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied

4.1.j
Packet Pg. 567
Attachment: Appendix A - Air Energy GHG Report (McLeish Planned Development Permit & Tentative Tract Map 38203 (P22-022))

5.1.i
Packet Pg. 805
Attachment: Planning Commission Staff Report (McLeish Ranch Planned Development Permit & Tentative Tract Map 38203 (P22-022))

3.4 Building Construction - 2026
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category lb/day lb/day
Off-Road 1.3674 12.4697 16.0847 0.0270 0.5276 0.5276 0.4963 0.4963 2,556.474 4 2,556.474
4 0.6010 2,571.498
1 Total 1.3674 12.4697 16.0847 0.0270 0.5276 0.5276 0.4963 0.4963 2,556.474 4 2,556.474
4 0.6010 2,571.498
1 Unmitigated Construction On-Site
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category lb/day lb/day
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 Vendor 0.3997 13.6107 5.3890 0.0665 2.5619 0.1130 2.6749 0.7376 0.1081 0.8457 7,055.355 2 7,055.355
2 0.0825 1.0377 7,366.651
3 Worker 3.0015 1.7968 25.9537 0.0857 11.8595 0.0479 11.9074 3.1452 0.0441 3.1893 8,999.598 5 8,999.598
5 0.1811 0.2077 9,066.006
8 Total 3.4012 15.4075 31.3428 0.1521 14.4213 0.1610 14.5823 3.8828 0.1522 4.0351 16,054.95 37 16,054.95
37 0.2636 1.2454 16,432.65
81 Unmitigated Construction Off-Site
CalEEMod Version: CalEEMod.2020.4.0 Date: 10/17/2022 3:46 PM Page 18 of 32 McLeish Ranch Residential - Riverside-South Coast County, Winter EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied

4.1.j
Packet Pg. 568
Attachment: Appendix A - Air Energy GHG Report (McLeish Planned Development Permit & Tentative Tract Map 38203 (P22-022))

5.1.i
Packet Pg. 806
Attachment: Planning Commission Staff Report (McLeish Ranch Planned Development Permit & Tentative Tract Map 38203 (P22-022))

3.4 Building Construction - 2026
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category lb/day lb/day
Off-Road 1.3674 12.4697 16.0847 0.0270 0.5276 0.5276 0.4963 0.4963 0.0000 2,556.474 4 2,556.474
4 0.6010 2,571.498
1 Total 1.3674 12.4697 16.0847 0.0270 0.5276 0.5276 0.4963 0.4963 0.0000 2,556.474 4 2,556.474
4 0.6010 2,571.498
1 Mitigated Construction On-Site
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category lb/day lb/day
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 Vendor 0.3997 13.6107 5.3890 0.0665 2.5619 0.1130 2.6749 0.7376 0.1081 0.8457 7,055.355 2 7,055.355
2 0.0825 1.0377 7,366.651
3 Worker 3.0015 1.7968 25.9537 0.0857 11.8595 0.0479 11.9074 3.1452 0.0441 3.1893 8,999.598 5 8,999.598
5 0.1811 0.2077 9,066.006
8 Total 3.4012 15.4075 31.3428 0.1521 14.4213 0.1610 14.5823 3.8828 0.1522 4.0351 16,054.95 37 16,054.95
37 0.2636 1.2454 16,432.65
81 Mitigated Construction Off-Site
CalEEMod Version: CalEEMod.2020.4.0 Date: 10/17/2022 3:46 PM Page 19 of 32 McLeish Ranch Residential - Riverside-South Coast County, Winter EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied

4.1.j
Packet Pg. 569
Attachment: Appendix A - Air Energy GHG Report (McLeish Planned Development Permit & Tentative Tract Map 38203 (P22-022))

5.1.i
Packet Pg. 807
Attachment: Planning Commission Staff Report (McLeish Ranch Planned Development Permit & Tentative Tract Map 38203 (P22-022))

3.4 Building Construction - 2027
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category lb/day lb/day
Off-Road 1.3674 12.4697 16.0847 0.0270 0.5276 0.5276 0.4963 0.4963 2,556.474 4 2,556.474
4 0.6010 2,571.498
1 Total 1.3674 12.4697 16.0847 0.0270 0.5276 0.5276 0.4963 0.4963 2,556.474 4 2,556.474
4 0.6010 2,571.498
1 Unmitigated Construction On-Site
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category lb/day lb/day
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 Vendor 0.3953 13.4734 5.3479 0.0652 2.5618 0.1124 2.6742 0.7376 0.1075 0.8451 6,917.909 7 6,917.909
7 0.0851 1.0158 7,222.730
7 Worker 2.8326 1.6378 24.5186 0.0832 11.8595 0.0451 11.9045 3.1452 0.0415 3.1867 8,809.089 6 8,809.089
6 0.1653 0.1967 8,871.824
5 Total 3.2279 15.1113 29.8665 0.1484 14.4213 0.1574 14.5787 3.8828 0.1490 4.0318 15,726.99 94 15,726.99
94 0.2503 1.2124 16,094.55
52 Unmitigated Construction Off-Site
CalEEMod Version: CalEEMod.2020.4.0 Date: 10/17/2022 3:46 PM Page 20 of 32 McLeish Ranch Residential - Riverside-South Coast County, Winter EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied

4.1.j
Packet Pg. 570
Attachment: Appendix A - Air Energy GHG Report (McLeish Planned Development Permit & Tentative Tract Map 38203 (P22-022))

5.1.i
Packet Pg. 808
Attachment: Planning Commission Staff Report (McLeish Ranch Planned Development Permit & Tentative Tract Map 38203 (P22-022))

3.4 Building Construction - 2027
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category lb/day lb/day
Off-Road 1.3674 12.4697 16.0847 0.0270 0.5276 0.5276 0.4963 0.4963 0.0000 2,556.474 4 2,556.474
4 0.6010 2,571.498
1 Total 1.3674 12.4697 16.0847 0.0270 0.5276 0.5276 0.4963 0.4963 0.0000 2,556.474 4 2,556.474
4 0.6010 2,571.498
1 Mitigated Construction On-Site
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category lb/day lb/day
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 Vendor 0.3953 13.4734 5.3479 0.0652 2.5618 0.1124 2.6742 0.7376 0.1075 0.8451 6,917.909 7 6,917.909
7 0.0851 1.0158 7,222.730
7 Worker 2.8326 1.6378 24.5186 0.0832 11.8595 0.0451 11.9045 3.1452 0.0415 3.1867 8,809.089 6 8,809.089
6 0.1653 0.1967 8,871.824
5 Total 3.2279 15.1113 29.8665 0.1484 14.4213 0.1574 14.5787 3.8828 0.1490 4.0318 15,726.99 94 15,726.99
94 0.2503 1.2124 16,094.55
52 Mitigated Construction Off-Site
CalEEMod Version: CalEEMod.2020.4.0 Date: 10/17/2022 3:46 PM Page 21 of 32 McLeish Ranch Residential - Riverside-South Coast County, Winter EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied

4.1.j
Packet Pg. 571
Attachment: Appendix A - Air Energy GHG Report (McLeish Planned Development Permit & Tentative Tract Map 38203 (P22-022))

5.1.i
Packet Pg. 809
Attachment: Planning Commission Staff Report (McLeish Ranch Planned Development Permit & Tentative Tract Map 38203 (P22-022))

3.5 Paving - 2027
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category lb/day lb/day
Off-Road 0.9152 8.5816 14.5780 0.0228 0.4185 0.4185 0.3850 0.3850 2,206.745 2 2,206.745
2 0.7137 2,224.587
8 Paving 0.9172 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 Total 1.8324 8.5816 14.5780 0.0228 0.4185 0.4185 0.3850 0.3850 2,206.745 2 2,206.745
2 0.7137 2,224.587
8 Unmitigated Construction On-Site
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category lb/day lb/day
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 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 Worker 0.0401 0.0232 0.3466 1.1800e0030.1677 6.4000e0040.1683 0.0445 5.9000e0040.0451 124.5394 124.5394 2.3400e0032.7800e003125.4264 Total 0.0401 0.0232 0.3466 1.1800e0030.1677 6.4000e0040.1683 0.0445 5.9000e0040.0451 124.5394 124.5394 2.3400e0032.7800e003125.4264 Unmitigated Construction Off-Site
CalEEMod Version: CalEEMod.2020.4.0 Date: 10/17/2022 3:46 PM Page 22 of 32 McLeish Ranch Residential - Riverside-South Coast County, Winter EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied

4.1.j
Packet Pg. 572
Attachment: Appendix A - Air Energy GHG Report (McLeish Planned Development Permit & Tentative Tract Map 38203 (P22-022))

5.1.i
Packet Pg. 810
Attachment: Planning Commission Staff Report (McLeish Ranch Planned Development Permit & Tentative Tract Map 38203 (P22-022))

3.5 Paving - 2027
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category lb/day lb/day
Off-Road 0.9152 8.5816 14.5780 0.0228 0.4185 0.4185 0.3850 0.3850 0.0000 2,206.745 2 2,206.745
2 0.7137 2,224.587
8 Paving 0.9172 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 Total 1.8324 8.5816 14.5780 0.0228 0.4185 0.4185 0.3850 0.3850 0.0000 2,206.745 2 2,206.745
2 0.7137 2,224.587
8 Mitigated Construction On-Site
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category lb/day lb/day
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 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 Worker 0.0401 0.0232 0.3466 1.1800e0030.1677 6.4000e0040.1683 0.0445 5.9000e0040.0451 124.5394 124.5394 2.3400e0032.7800e003125.4264 Total 0.0401 0.0232 0.3466 1.1800e0030.1677 6.4000e0040.1683 0.0445 5.9000e0040.0451 124.5394 124.5394 2.3400e0032.7800e003125.4264 Mitigated Construction Off-Site
CalEEMod Version: CalEEMod.2020.4.0 Date: 10/17/2022 3:46 PM Page 23 of 32 McLeish Ranch Residential - Riverside-South Coast County, Winter EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied

4.1.j
Packet Pg. 573
Attachment: Appendix A - Air Energy GHG Report (McLeish Planned Development Permit & Tentative Tract Map 38203 (P22-022))

5.1.i
Packet Pg. 811
Attachment: Planning Commission Staff Report (McLeish Ranch Planned Development Permit & Tentative Tract Map 38203 (P22-022))

3.6 Architectural Coating - 2027
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category lb/day lb/day
Archit. Coating 61.2909 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 Off-Road 0.1709 1.1455 1.8091 2.9700e0030.0515 0.0515 0.0515 0.0515 281.4481 281.4481 0.0154 281.8319 Total 61.4618 1.1455 1.8091 2.9700e0030.0515 0.0515 0.0515 0.0515 281.4481 281.4481 0.0154 281.8319 Unmitigated Construction On-Site
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category lb/day lb/day
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 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 Worker 0.5660 0.3273 4.8991 0.0166 2.3697 9.0000e0032.3787 0.6285 8.2800e0030.6367 1,760.157 4 1,760.157
4 0.0330 0.0393 1,772.692
5 Total 0.5660 0.3273 4.8991 0.0166 2.3697 9.0000e0032.3787 0.6285 8.2800e0030.6367 1,760.157 4 1,760.157
4 0.0330 0.0393 1,772.692
5 Unmitigated Construction Off-Site
CalEEMod Version: CalEEMod.2020.4.0 Date: 10/17/2022 3:46 PM Page 24 of 32 McLeish Ranch Residential - Riverside-South Coast County, Winter EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied

4.1.j
Packet Pg. 574
Attachment: Appendix A - Air Energy GHG Report (McLeish Planned Development Permit & Tentative Tract Map 38203 (P22-022))

5.1.i
Packet Pg. 812
Attachment: Planning Commission Staff Report (McLeish Ranch Planned Development Permit & Tentative Tract Map 38203 (P22-022))

3.6 Architectural Coating - 2027
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category lb/day lb/day
Archit. Coating 61.2909 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 Off-Road 0.1709 1.1455 1.8091 2.9700e0030.0515 0.0515 0.0515 0.0515 0.0000 281.4481 281.4481 0.0154 281.8319 Total 61.4618 1.1455 1.8091 2.9700e0030.0515 0.0515 0.0515 0.0515 0.0000 281.4481 281.4481 0.0154 281.8319 Mitigated Construction On-Site
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category lb/day lb/day
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 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 Worker 0.5660 0.3273 4.8991 0.0166 2.3697 9.0000e0032.3787 0.6285 8.2800e0030.6367 1,760.157 4 1,760.157
4 0.0330 0.0393 1,772.692
5 Total 0.5660 0.3273 4.8991 0.0166 2.3697 9.0000e0032.3787 0.6285 8.2800e0030.6367 1,760.157 4 1,760.157
4 0.0330 0.0393 1,772.692
5 Mitigated Construction Off-Site
CalEEMod Version: CalEEMod.2020.4.0 Date: 10/17/2022 3:46 PM Page 25 of 32 McLeish Ranch Residential - Riverside-South Coast County, Winter EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied

4.1.j
Packet Pg. 575
Attachment: Appendix A - Air Energy GHG Report (McLeish Planned Development Permit & Tentative Tract Map 38203 (P22-022))

5.1.i
Packet Pg. 813
Attachment: Planning Commission Staff Report (McLeish Ranch Planned Development Permit & Tentative Tract Map 38203 (P22-022))

4.0 Operational Detail - Mobile
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category lb/day lb/day
Mitigated 9.3875 14.3976 95.2706 0.2370 28.6083 0.1894 28.7978 7.6305 0.1776 7.8081 25,048.59 44 25,048.59
44 1.2383 1.1971 25,436.28
00 Unmitigated 9.4815 14.6244 96.8112 0.2417 29.1922 0.1930 29.3852 7.7862 0.1809 7.9671 25,545.77 33 25,545.77
33 1.2556 1.2169 25,939.79
04 4.1 Mitigation Measures Mobile

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
City Park 0.00 0.00 0.00
Other Asphalt Surfaces 0.00 0.00 0.00
Single Family Housing 3,998.32 4,044.96 3625.20 13,503,491 13,233,421 Total 3,998.32 4,044.96 3,625.20 13,503,491 13,233,421
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 City Park 16.60 8.40 6.90 33.00 48.00 19.00 66 28 6
Other Asphalt Surfaces 16.60 8.40 6.90 0.00 0.00 0.00 0 0 0 Single Family Housing 14.70 5.90 8.70 40.20 19.20 40.60 86 11 3 Improve Pedestrian Network
CalEEMod Version: CalEEMod.2020.4.0 Date: 10/17/2022 3:46 PM Page 26 of 32 McLeish Ranch Residential - Riverside-South Coast County, Winter EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied

4.1.j
Packet Pg. 576
Attachment: Appendix A - Air Energy GHG Report (McLeish Planned Development Permit & Tentative Tract Map 38203 (P22-022))

5.1.i
Packet Pg. 814
Attachment: Planning Commission Staff Report (McLeish Ranch Planned Development Permit & Tentative Tract Map 38203 (P22-022))

4.4 Fleet Mix
Land Use LDA LDT1 LDT2 MDV LHD1 LHD2 MHD HHD OBUS UBUS MCY SBUS MH City Park 0.544951 0.056922 0.175129 0.132247 0.024165 0.006855 0.011655 0.018450 0.000608 0.000293 0.023172 0.001089 0.004464 Other Asphalt Surfaces 0.544951 0.056922 0.175129 0.132247 0.024165 0.006855 0.011655 0.018450 0.000608 0.000293 0.023172 0.001089 0.004464 Single Family Housing 0.544951 0.056922 0.175129 0.132247 0.024165 0.006855 0.011655 0.018450 0.000608 0.000293 0.023172 0.001089 0.004464

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

0.3544 3.0282 1.2886 0.0193 0.2448 0.2448 0.2448 0.2448 3,865.805 8 3,865.805
8 0.0741 0.0709 3,888.778
4 NaturalGas
Unmitigated

0.3544 3.0282 1.2886 0.0193 0.2448 0.2448 0.2448 0.2448 3,865.805 8 3,865.805
8 0.0741 0.0709 3,888.778
4 Historical Energy Use: N

5.1 Mitigation Measures Energy
Kilowatt Hours of Renewable Electricity Generated
CalEEMod Version: CalEEMod.2020.4.0 Date: 10/17/2022 3:46 PM Page 27 of 32 McLeish Ranch Residential - Riverside-South Coast County, Winter EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied

4.1.j
Packet Pg. 577
Attachment: Appendix A - Air Energy GHG Report (McLeish Planned Development Permit & Tentative Tract Map 38203 (P22-022))

5.1.i
Packet Pg. 815
Attachment: Planning Commission Staff Report (McLeish Ranch Planned Development Permit & Tentative Tract Map 38203 (P22-022))

5.2 Energy by Land Use - NaturalGas
NaturalGa
s Use
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Land Use kBTU/yr lb/day lb/day
City Park 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 Other Asphalt
Surfaces
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 Single Family
Housing
32859.3 0.3544 3.0282 1.2886 0.0193 0.2448 0.2448 0.2448 0.2448 3,865.805 8 3,865.805
8 0.0741 0.0709 3,888.778
4 Total 0.3544 3.0282 1.2886 0.0193 0.2448 0.2448 0.2448 0.2448 3,865.805 8 3,865.805
8 0.0741 0.0709 3,888.778
4 Unmitigated
CalEEMod Version: CalEEMod.2020.4.0 Date: 10/17/2022 3:46 PM Page 28 of 32 McLeish Ranch Residential - Riverside-South Coast County, Winter EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied

4.1.j
Packet Pg. 578
Attachment: Appendix A - Air Energy GHG Report (McLeish Planned Development Permit & Tentative Tract Map 38203 (P22-022))

5.1.i
Packet Pg. 816
Attachment: Planning Commission Staff Report (McLeish Ranch Planned Development Permit & Tentative Tract Map 38203 (P22-022))

5.2 Energy by Land Use - NaturalGas

6.0 Area Detail

6.1 Mitigation Measures Area
NaturalGa
s Use
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Land Use kBTU/yr lb/day lb/day
City Park 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 Other Asphalt
Surfaces
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 Single Family
Housing

32.8593 0.3544 3.0282 1.2886 0.0193 0.2448 0.2448 0.2448 0.2448 3,865.805 8 3,865.805
8 0.0741 0.0709 3,888.778
4 Total 0.3544 3.0282 1.2886 0.0193 0.2448 0.2448 0.2448 0.2448 3,865.805 8 3,865.805
8 0.0741 0.0709 3,888.778
4 Mitigated
CalEEMod Version: CalEEMod.2020.4.0 Date: 10/17/2022 3:46 PM Page 29 of 32 McLeish Ranch Residential - Riverside-South Coast County, Winter EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied

4.1.j
Packet Pg. 579
Attachment: Appendix A - Air Energy GHG Report (McLeish Planned Development Permit & Tentative Tract Map 38203 (P22-022))

5.1.i
Packet Pg. 817
Attachment: Planning Commission Staff Report (McLeish Ranch Planned Development Permit & Tentative Tract Map 38203 (P22-022)) ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category lb/day lb/day
Mitigated 23.3738 0.4026 34.9525 1.8500e0030.1939 0.1939 0.1939 0.1939 0.0000 62.9970 62.9970 0.0603 0.0000 64.5057 Unmitigated 23.3738 0.4026 34.9525 1.8500e0030.1939 0.1939 0.1939 0.1939 0.0000 62.9970 62.9970 0.0603 0.0000 64.5057

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

1.8471 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000
Consumer
Products

20.4769 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 1.0498 0.4026 34.9525 1.8500e0030.1939 0.1939 0.1939 0.1939 62.9970 62.9970 0.0603 64.5057 Total 23.3738 0.4026 34.9525 1.8500e0030.1939 0.1939 0.1939 0.1939 0.0000 62.9970 62.9970 0.0603 0.0000 64.5057 Unmitigated
CalEEMod Version: CalEEMod.2020.4.0 Date: 10/17/2022 3:46 PM Page 30 of 32 McLeish Ranch Residential - Riverside-South Coast County, Winter EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied

4.1.j
Packet Pg. 580
Attachment: Appendix A - Air Energy GHG Report (McLeish Planned Development Permit & Tentative Tract Map 38203 (P22-022))

5.1.i
Packet Pg. 818
Attachment: Planning Commission Staff Report (McLeish Ranch Planned Development Permit & Tentative Tract Map 38203 (P22-022))

6.2 Area by SubCategory

7.0 Water Detail

7.1 Mitigation Measures Water
Install Low Flow Bathroom Faucet
Install Low Flow Kitchen Faucet
Install Low Flow Toilet
Install Low Flow Shower
Use Water Efficient Irrigation System
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
SubCategory lb/day lb/day
Architectural
Coating

1.8471 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000
Consumer
Products

20.4769 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 1.0498 0.4026 34.9525 1.8500e0030.1939 0.1939 0.1939 0.1939 62.9970 62.9970 0.0603 64.5057 Total 23.3738 0.4026 34.9525 1.8500e0030.1939 0.1939 0.1939 0.1939 0.0000 62.9970 62.9970 0.0603 0.0000 64.5057 Mitigated
CalEEMod Version: CalEEMod.2020.4.0 Date: 10/17/2022 3:46 PM Page 31 of 32 McLeish Ranch Residential - Riverside-South Coast County, Winter EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied

4.1.j
Packet Pg. 581
Attachment: Appendix A - Air Energy GHG Report (McLeish Planned Development Permit & Tentative Tract Map 38203 (P22-022))

5.1.i
Packet Pg. 819
Attachment: Planning Commission Staff Report (McLeish Ranch Planned Development Permit & Tentative Tract Map 38203 (P22-022))

11.0 Vegetation

8.0 Waste Detail

8.1 Mitigation Measures Waste
Institute Recycling and Composting Services

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
CalEEMod Version: CalEEMod.2020.4.0 Date: 10/17/2022 3:46 PM Page 32 of 32 McLeish Ranch Residential - Riverside-South Coast County, Winter EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied

4.1.j
Packet Pg. 582
Attachment: Appendix A - Air Energy GHG Report (McLeish Planned Development Permit & Tentative Tract Map 38203 (P22-022))

5.1.i
Packet Pg. 820
Attachment: Planning Commission Staff Report (McLeish Ranch Planned Development Permit & Tentative Tract Map 38203 (P22-022))

McLeish Ranch Residential Project, Air Quality, Energy, and GHG Emissions Impact Analysis City of San Jacinto
Appendix  B

APPENDIX B
EMFAC2017 Model Printouts

4.1.j
Packet Pg. 583 Attachment: Appendix A - Air Energy GHG Report (McLeish Planned Development Permit & Tentative Tract Map 38203 (P22-022))

5.1.i
Packet Pg. 821 Attachment: Planning Commission Staff Report (McLeish Ranch Planned Development Permit & Tentative Tract Map 38203 (P22-022)) EMFAC2017 (v1.0.2) Emissions Inventory
Region Type: Air Basin
Region: SOUTH COASTCalendar Year: 2023
Season: Annual
Vehicle Classification: EMFAC2007 Categories
Units: miles/day for VMT, trips/day for Trips, tons/day for Emissions, 1000 gallons/day for Fuel Consumption. Note 'day' in the unit is operation day.

Region Calendar YVehicle CaModel Year Speed Fuel Population VMT Trips Fuel Consumption SOUTH COA 2023 HHDT Aggregated AggregatedGAS 74.37 8047.23 1487.93 1.89 SOUTH COA 2023 LDA Aggregated AggregatedGAS 6459700.68 246807537.84 30522037.63 7786.05SOUTH COA 2023 LDT1 Aggregated AggregatedGAS 737358.38 27059295.05 3407418.81 995.76SOUTH COA 2023 LDT2 Aggregated AggregatedGAS 2219228.89 82875046.15 10414097.54 3244.21SOUTH COA 2023 LHDT1 Aggregated AggregatedGAS 170372.50 6057759.01 2538296.34 568.77SOUTH COA 2023 LHDT2 Aggregated AggregatedGAS 29153.37 1003759.33 434341.71 108.29SOUTH COA 2023 MCY Aggregated AggregatedGAS 297600.18 2024753.66 595200.36 55.80SOUTH COA 2023 MDV Aggregated AggregatedGAS 1540538.65 53902320.53 7127894.33 2607.45SOUTH COA 2023 MH Aggregated AggregatedGAS 33691.87 321144.17 3370.53 61.57SOUTH COA 2023 MHDT Aggregated AggregatedGAS 24928.02 1310043.21 498759.85 254.98SOUTH COA 2023 OBUS Aggregated AggregatedGAS 5826.42 235991.19 116574.92 46.21SOUTH COA 2023 SBUS Aggregated AggregatedGAS 2711.85 107297.31 10847.42 11.68SOUTH COA 2023 UBUS Aggregated AggregatedGAS 957.77 89782.63 3831.07 17.62 vehicle miles per day (All Categories) 421802777 15,760 1,000 gall per day 15,760,271 gallons per day
Fleet Avg Miles per gallon 26.8

4.1.j
Packet Pg. 584 Attachment: Appendix A - Air Energy GHG Report (McLeish Planned Development Permit & Tentative Tract Map 38203 (P22-022))

5.1.i
Packet Pg. 822 Attachment: Planning Commission Staff Report (McLeish Ranch Planned Development Permit & Tentative Tract Map 38203 (P22-022)) EMFAC2017 (v1.0.2) Emissions Inventory
Region Type: Air Basin
Region: SOUTH COASTCalendar Year: 2023
Season: Annual
Vehicle Classification: EMFAC2007 Categories
Units: miles/day for VMT, trips/day for Trips, tons/day for Emissions, 1000 gallons/day for Fuel Consumption. Note 'day' in the unit is operation day.

Region Calendar YeVehicle CatModel Year Speed Fuel Population VMT Trips Fuel Consumption SOUTH COA 2023 HHDT Aggregated AggregatedDSL 99862.0 12043323.4 1008086.8 1696.5 SOUTH COA 2023 LDA Aggregated AggregatedDSL 60890.6 2412432.1 289413.5 48.3SOUTH COA 2023 LDT1 Aggregated AggregatedDSL 352.4 8196.1 1229.5 0.4SOUTH COA 2023 LDT2 Aggregated AggregatedDSL 15172.5 633608.1 74551.8 17.3SOUTH COA 2023 LHDT1 Aggregated AggregatedDSL 121835.8 4855937.3 1532540.9 221.8SOUTH COA 2023 LHDT2 Aggregated AggregatedDSL 48525.6 1881224.0 610391.4 95.2SOUTH COA 2023 MDV Aggregated AggregatedDSL 35106.9 1383747.2 171565.7 49.2SOUTH COA 2023 MH Aggregated AggregatedDSL 12560.1 119509.1 1256.0 11.2SOUTH COA 2023 MHDT Aggregated AggregatedDSL 118681.0 7894095.0 1192353.2 705.1SOUTH COA 2023 OBUS Aggregated AggregatedDSL 4158.7 323908.7 40367.2 37.2SOUTH COA 2023 SBUS Aggregated AggregatedDSL 6393.3 202053.5 73777.5 26.3SOUTH COA 2023 UBUS Aggregated AggregatedDSL 13.0 1416.6 52.0 0.2 Diesel Truck (HHDT, MDV, MHDT) vehicle miles per day 21,321,166 2,451 1,000 gall per day 2450893.902 gallons per day
Diesel Truck Fleet Avg Miles per gallon 8.7

4.1.j
Packet Pg. 585 Attachment: Appendix A - Air Energy GHG Report (McLeish Planned Development Permit & Tentative Tract Map 38203 (P22-022))

5.1.i
Packet Pg. 823 Attachment: Planning Commission Staff Report (McLeish Ranch Planned Development Permit & Tentative Tract Map 38203 (P22-022)) EMFAC2017 (v1.0.2) Emissions Inventory
Region Type: Air District
Region: SOUTH COAST AQMDCalendar Year: 2027
Season: Annual
Vehicle Classification: EMFAC2007 Categories
Units: miles/day for VMT, trips/day for Trips, tons/day for Emissions, 1000 gallons/day for Fuel Consumption. Note 'day' in the unit is operation day.

Region Calendar YVehicle Ca Model YearSpeed Fuel Population VMT Trips Fuel Consumption SOUTH COA 2027 HHDT AggregatedAggregatedGAS 75.31997 9814.176853 1507.002 2.094171584 SOUTH COA 2027 LDA AggregatedAggregatedGAS 6973060 253172162.6 32904710 7185.845835SOUTH COA 2027 LDT1 AggregatedAggregatedGAS 840766.6 29421671.88 3893053 982.9336771SOUTH COA 2027 LDT2 AggregatedAggregatedGAS 2448167 87247689.58 11481215 3003.331765SOUTH COA 2027 LHDT1 AggregatedAggregatedGAS 173116.1 5998539.024 2579172 532.4914203SOUTH COA 2027 LHDT2 AggregatedAggregatedGAS 30488.69 1015923.248 454236 103.8956295SOUTH COA 2027 MCY AggregatedAggregatedGAS 338399.1 2199095.923 676798.1 60.87266846SOUTH COA 2027 MDV AggregatedAggregatedGAS 1636953 55136578.37 7586012 2349.313714SOUTH COA 2027 MH AggregatedAggregatedGAS 33467.62 320300.9724 3348.1 57.50002773SOUTH COA 2027 MHDT AggregatedAggregatedGAS 26413.21 1352083.672 528475.6 247.1615256SOUTH COA 2027 OBUS AggregatedAggregatedGAS 5961.322 232117.6764 119274.1 42.47246331SOUTH COA 2027 SBUS AggregatedAggregatedGAS 3398.172 131245.4441 13592.69 13.71265966SOUTH COA 2027 UBUS AggregatedAggregatedGAS 980.6112 91889.16589 3922.445 16.63111257 vehicle miles per day (All Categories) 436329112 14,598 1,000 gall per day 14,598,257 gallons per day
Fleet Avg Miles per gallon 29.9

4.1.j
Packet Pg. 586 Attachment: Appendix A - Air Energy GHG Report (McLeish Planned Development Permit & Tentative Tract Map 38203 (P22-022))

5.1.i
Packet Pg. 824 Attachment: Planning Commission Staff Report (McLeish Ranch Planned Development Permit & Tentative Tract Map 38203 (P22-022))

McLeish Ranch Residential Project, Air Quality, Energy, and GHG Emissions Impact Analysis City of San Jacinto
Appendix  C

APPENDIX C
CalEEMod Model Annual Printouts

4.1.j
Packet Pg. 587 Attachment: Appendix A - Air Energy GHG Report (McLeish Planned Development Permit & Tentative Tract Map 38203 (P22-022))

5.1.i
Packet Pg. 825 Attachment: Planning Commission Staff Report (McLeish Ranch Planned Development Permit & Tentative Tract Map 38203 (P22-022)) McLeish Ranch Residential
Riverside-South Coast County, Annual

1.1 Land Usage
Project Characteristics -
Land Use - Total Project Site = 96 acres
Construction Phase - Construction schedule provided by applicant. Paving and Painting will concur concurrently with last 5 months of Building Construction Off-road Equipment -
Off-road Equipment -
Off-road Equipment - Grading - 2 Excavators, 1 Grader, 1 Rubber Tired Dozer, 2 Scrapers, 2 Crawler Tractors Off-road Equipment -
Off-road Equipment - Site Prep - 3 Rubber Tired Dozers, 4 Crawler Tractors Trips and VMT - 6 vendor truck trips added to Site Prep and Grading to account for water truck emissions Grading -
Land Uses Size Metric Lot Acreage Floor Surface Area Population Other Asphalt Surfaces 38.51 Acre 38.51 1,677,495.60 0
City Park 11.15 Acre 11.15 485,694.00 0
Single Family Housing 424.00 Dwelling Unit 46.33 1,002,915.00 1560

1.2 Other Project Characteristics
Urbanization
Climate Zone
Urban
10 Wind Speed (m/s) Precipitation Freq (Days) 2.4 28

1.0 Project Characteristics
Utility Company

1.3 User Entered Comments & Non-Default Data
Southern California Edison
2027 Operational Year
CO2 Intensity
(lb/MWhr)
390.98 0.033 CH4 Intensity
(lb/MWhr)

0.004 N2O Intensity
(lb/MWhr)
CalEEMod Version: CalEEMod.2020.4.0 Date: 10/17/2022 3:47 PM Page 1 of 40 McLeish Ranch Residential - Riverside-South Coast County, Annual EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied

4.1.j
Packet Pg. 588
Attachment: Appendix A - Air Energy GHG Report (McLeish Planned Development Permit & Tentative Tract Map 38203 (P22-022))

5.1.i
Packet Pg. 826
Attachment: Planning Commission Staff Report (McLeish Ranch Planned Development Permit & Tentative Tract Map 38203 (P22-022)) Vehicle Trips - Weekday Trip Rate of 9.43 per SFH from Traffic Study. No trips from park area Woodstoves - No Woodstoves or Fireplaces will be installed in proposed homes Construction Off-road Equipment Mitigation - Water Exposed Area 3x per day and Replace Ground Cover selected to account for SCAQMD Rule 403 and Section 15.30.010 Minimum requirements
Mobile Land Use Mitigation - Improve Ped Network on Project Site and Connecting Offsite Energy Mitigation - 2,027,732 kWh generated from solar PV panels Water Mitigation - Install low-flow fixtures and use water-efficient irrigation selected to account for Title 24 Part 11 min requirements Waste Mitigation - 50% reduction in waste selected to account for AB 341 Fleet Mix -
Table Name Column Name Default Value New Value
tblConstructionPhase NumDays 1,550.00 1,090.00
tblFireplaces NumberGas 360.40 0.00
tblFireplaces NumberNoFireplace 42.40 424.00
tblFireplaces NumberWood 21.20 0.00
tblLandUse LandUseSquareFeet 763,200.00 1,002,915.00
tblLandUse LotAcreage 137.66 46.33
tblLandUse Population 1,213.00 1,560.00
tblOffRoadEquipment LoadFactor 0.43 0.43
tblOffRoadEquipment LoadFactor 0.43 0.43
tblOffRoadEquipment OffRoadEquipmentType Tractors/Loaders/Backhoes Crawler Tractors tblOffRoadEquipment OffRoadEquipmentType Tractors/Loaders/Backhoes Crawler Tractors tblTripsAndVMT VendorTripNumber 0.00 6.00
tblTripsAndVMT VendorTripNumber 0.00 6.00
tblVehicleTrips ST_TR 1.96 0.00
tblVehicleTrips SU_TR 2.19 0.00
tblVehicleTrips WD_TR 0.78 0.00
tblVehicleTrips WD_TR 9.44 9.43
tblWoodstoves NumberCatalytic 21.20 0.00
tblWoodstoves NumberNoncatalytic 21.20 0.00
CalEEMod Version: CalEEMod.2020.4.0 Date: 10/17/2022 3:47 PM Page 2 of 40 McLeish Ranch Residential - Riverside-South Coast County, Annual EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied

4.1.j
Packet Pg. 589
Attachment: Appendix A - Air Energy GHG Report (McLeish Planned Development Permit & Tentative Tract Map 38203 (P22-022))

5.1.i
Packet Pg. 827
Attachment: Planning Commission Staff Report (McLeish Ranch Planned Development Permit & Tentative Tract Map 38203 (P22-022))

2.0 Emissions Summary

2.1 Overall Construction
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Year tons/yr MT/yr
2023 0.5475 5.2005 4.0353 0.0119 1.7951 0.2019 1.9970 0.6953 0.1862 0.8815 0.0000 1,070.569 0 1,070.569
0 0.2253 0.0298 1,085.069
0 2024 0.6700 3.8555 6.9131 0.0248 1.8587 0.1021 1.9609 0.5012 0.0962 0.5973 0.0000 2,319.913 7 2,319.913
7 0.1074 0.1568 2,369.325
4 2025 0.6262 3.6682 6.5946 0.0242 1.8516 0.0902 1.9419 0.4993 0.0850 0.5842 0.0000 2,268.102 0 2,268.102
0 0.1044 0.1518 2,315.943
9 2026 0.6022 3.6250 6.3568 0.0236 1.8516 0.0898 1.9414 0.4993 0.0846 0.5839 0.0000 2,226.776 8 2,226.776
8 0.1025 0.1477 2,273.351
3 2027 4.0929 4.1405 7.3585 0.0255 1.9888 0.1158 2.1046 0.5357 0.1087 0.6444 0.0000 2,407.757 9 2,407.757
9 0.1391 0.1459 2,454.715
0 Maximum 4.0929 5.2005 7.3585 0.0255 1.9888 0.2019 2.1046 0.6953 0.1862 0.8815 0.0000 2,407.757 9 2,407.757
9 0.2253 0.1568 2,454.715
0 Unmitigated Construction
CalEEMod Version: CalEEMod.2020.4.0 Date: 10/17/2022 3:47 PM Page 3 of 40 McLeish Ranch Residential - Riverside-South Coast County, Annual EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied

4.1.j
Packet Pg. 590
Attachment: Appendix A - Air Energy GHG Report (McLeish Planned Development Permit & Tentative Tract Map 38203 (P22-022))

5.1.i
Packet Pg. 828
Attachment: Planning Commission Staff Report (McLeish Ranch Planned Development Permit & Tentative Tract Map 38203 (P22-022))

2.1 Overall Construction
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Year tons/yr MT/yr
2023 0.5475 5.2005 4.0353 0.0119 0.8831 0.2019 1.0850 0.3164 0.1862 0.5026 0.0000 1,070.568 2 1,070.568
2 0.2253 0.0298 1,085.068
2 2024 0.6700 3.8555 6.9131 0.0248 1.8587 0.1021 1.9609 0.5012 0.0962 0.5973 0.0000 2,319.913 4 2,319.913
4 0.1074 0.1568 2,369.325
0 2025 0.6262 3.6682 6.5946 0.0242 1.8516 0.0902 1.9419 0.4993 0.0850 0.5842 0.0000 2,268.101 6 2,268.101
6 0.1044 0.1518 2,315.943
6 2026 0.6022 3.6250 6.3568 0.0236 1.8516 0.0898 1.9414 0.4993 0.0846 0.5839 0.0000 2,226.776 4 2,226.776
4 0.1025 0.1477 2,273.351
0 2027 4.0929 4.1405 7.3585 0.0255 1.9888 0.1158 2.1046 0.5357 0.1087 0.6444 0.0000 2,407.757 4 2,407.757
4 0.1391 0.1459 2,454.714
5 Maximum 4.0929 5.2005 7.3585 0.0255 1.9888 0.2019 2.1046 0.5357 0.1862 0.6444 0.0000 2,407.757 4 2,407.757
4 0.2253 0.1568 2,454.714
5 Mitigated Construction
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio-CO2 Total CO2 CH4 N20 CO2e
Percent
Reduction

0.00 0.00 0.00 0.00 9.76 0.00 9.17 13.88 0.00 11.51 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) 1 1-2-2023 4-1-2023 1.4773 1.4773
2 4-2-2023 7-1-2023 1.4914 1.4914
3 7-2-2023 10-1-2023 1.5078 1.5078
4 10-2-2023 1-1-2024 1.2825 1.2825
5 1-2-2024 4-1-2024 1.1307 1.1307
6 4-2-2024 7-1-2024 1.1108 1.1108
7 7-2-2024 10-1-2024 1.1232 1.1232
CalEEMod Version: CalEEMod.2020.4.0 Date: 10/17/2022 3:47 PM Page 4 of 40 McLeish Ranch Residential - Riverside-South Coast County, Annual EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied

4.1.j
Packet Pg. 591
Attachment: Appendix A - Air Energy GHG Report (McLeish Planned Development Permit & Tentative Tract Map 38203 (P22-022))

5.1.i
Packet Pg. 829
Attachment: Planning Commission Staff Report (McLeish Ranch Planned Development Permit & Tentative Tract Map 38203 (P22-022)) 8 10-2-2024 1-1-2025 1.1428 1.1428
9 1-2-2025 4-1-2025 1.0656 1.0656
10 4-2-2025 7-1-2025 1.0572 1.0572
11 7-2-2025 10-1-2025 1.0691 1.0691
12 10-2-2025 1-1-2026 1.0893 1.0893
13 1-2-2026 4-1-2026 1.0491 1.0491
14 4-2-2026 7-1-2026 1.0403 1.0403
15 7-2-2026 10-1-2026 1.0520 1.0520
16 10-2-2026 1-1-2027 1.0725 1.0725
17 1-2-2027 4-1-2027 1.0340 1.0340
18 4-2-2027 7-1-2027 1.0249 1.0249
19 7-2-2027 9-30-2027 2.6898 2.6898
Highest 2.6898 2.6898
CalEEMod Version: CalEEMod.2020.4.0 Date: 10/17/2022 3:47 PM Page 5 of 40 McLeish Ranch Residential - Riverside-South Coast County, Annual EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied

4.1.j
Packet Pg. 592
Attachment: Appendix A - Air Energy GHG Report (McLeish Planned Development Permit & Tentative Tract Map 38203 (P22-022))

5.1.i
Packet Pg. 830
Attachment: Planning Commission Staff Report (McLeish Ranch Planned Development Permit & Tentative Tract Map 38203 (P22-022))

2.2 Overall Operational
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category tons/yr MT/yr
Area 4.2054 0.0503 4.3691 2.3000e0040.0242 0.0242 0.0242 0.0242 0.0000 7.1437 7.1437 6.8400e0030.0000 7.3148 Energy 0.0647 0.5527 0.2352 3.5300e0030.0447 0.0447 0.0447 0.0447 0.0000 1,238.926 2 1,238.926
2 0.0628 0.0179 1,245.819
2 Mobile 1.7070 2.6105 17.7673 0.0437 5.1049 0.0343 5.1391 1.3634 0.0321 1.3955 0.0000 4,185.829 3 4,185.829
3 0.2021 0.1972 4,249.651
0 Waste 0.0000 0.0000 0.0000 0.0000 130.0279 0.0000 130.0279 7.6844 0.0000 322.1386 Water 0.0000 0.0000 0.0000 0.0000 8.7642 124.2832 133.0475 0.9107 0.0225 162.5269 Total 5.9770 3.2135 22.3715 0.0474 5.1049 0.1032 5.2080 1.3634 0.1010 1.4644 138.7921 5,556.182 5 5,694.974
6 8.8668 0.2376 5,987.450
4 Unmitigated Operational
CalEEMod Version: CalEEMod.2020.4.0 Date: 10/17/2022 3:47 PM Page 6 of 40 McLeish Ranch Residential - Riverside-South Coast County, Annual EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied

4.1.j
Packet Pg. 593
Attachment: Appendix A - Air Energy GHG Report (McLeish Planned Development Permit & Tentative Tract Map 38203 (P22-022))

5.1.i
Packet Pg. 831
Attachment: Planning Commission Staff Report (McLeish Ranch Planned Development Permit & Tentative Tract Map 38203 (P22-022))

2.2 Overall Operational
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category tons/yr MT/yr
Area 4.2054 0.0503 4.3691 2.3000e0040.0242 0.0242 0.0242 0.0242 0.0000 7.1437 7.1437 6.8400e0030.0000 7.3148 Energy 0.0647 0.5527 0.2352 3.5300e0030.0447 0.0447 0.0447 0.0447 0.0000 879.3170 879.3170 0.0325 0.0142 884.3548 Mobile 1.6901 2.5697 17.4810 0.0428 5.0028 0.0336 5.0364 1.3361 0.0315 1.3677 0.0000 4,104.311 8 4,104.311
8 0.1993 0.1940 4,167.104
1 Waste 0.0000 0.0000 0.0000 0.0000 65.0140 0.0000 65.0140 3.8422 0.0000 161.0693 Water 0.0000 0.0000 0.0000 0.0000 7.0114 107.8347 114.8461 0.7292 0.0181 138.4730 Total 5.9602 3.1727 22.0852 0.0466 5.0028 0.1026 5.1053 1.3361 0.1004 1.4366 72.0253 5,098.607 3 5,170.632
6 4.8100 0.2263 5,358.316
0 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 Site Preparation Site Preparation 1/2/2023 3/24/2023 5 60 2 Grading Grading 3/25/2023 10/27/2023 5 155
3 Building Construction Building Construction 10/28/2023 12/31/2027 5 1090 ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio-CO2 Total CO2 CH4 N20 CO2e
Percent
Reduction

0.28 1.27 1.28 1.79 2.00 0.61 1.97 2.00 0.58 1.90 48.11 8.24 9.21 45.75 4.76 10.51 CalEEMod Version: CalEEMod.2020.4.0 Date: 10/17/2022 3:47 PM Page 7 of 40 McLeish Ranch Residential - Riverside-South Coast County, Annual EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied

4.1.j
Packet Pg. 594
Attachment: Appendix A - Air Energy GHG Report (McLeish Planned Development Permit & Tentative Tract Map 38203 (P22-022))

5.1.i
Packet Pg. 832
Attachment: Planning Commission Staff Report (McLeish Ranch Planned Development Permit & Tentative Tract Map 38203 (P22-022)) 4 Paving Paving 7/30/2027 12/30/2027 5 110
5 Architectural Coating Architectural Coating 7/30/2027 12/30/2027 5 110 OffRoad Equipment
Phase Name Offroad Equipment Type Amount Usage Hours Horse Power Load Factor Site Preparation Rubber Tired Dozers 3 8.00 247 0.40
Site Preparation Crawler Tractors 4 8.00 212 0.43
Grading Excavators 2 8.00 158 0.38
Grading Graders 1 8.00 187 0.41
Grading Rubber Tired Dozers 1 8.00 247 0.40
Grading Scrapers 2 8.00 367 0.48
Grading Crawler Tractors 2 8.00 212 0.43
Building Construction Cranes 1 7.00 231 0.29
Building Construction Forklifts 3 8.00 89 0.20
Building Construction Generator Sets 1 8.00 84 0.74
Building Construction Tractors/Loaders/Backhoes 3 7.00 97 0.37 Building Construction Welders 1 8.00 46 0.45
Paving Pavers 2 8.00 130 0.42
Paving Paving Equipment 2 8.00 132 0.36
Paving Rollers 2 8.00 80 0.38
Architectural Coating Air Compressors 1 6.00 78 0.48
Residential Indoor: 2,030,903; Residential Outdoor: 676,968; Non-Residential Indoor: 0; Non-Residential Outdoor: 0; Striped Parking Area:
100,650 (Architectural Coating
Trips and VMT
– sqft)
Acres of Grading (Site Preparation Phase): 210
Acres of Grading (Grading Phase): 620
Acres of Paving: 38.51
CalEEMod Version: CalEEMod.2020.4.0 Date: 10/17/2022 3:47 PM Page 8 of 40 McLeish Ranch Residential - Riverside-South Coast County, Annual EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied

4.1.j
Packet Pg. 595
Attachment: Appendix A - Air Energy GHG Report (McLeish Planned Development Permit & Tentative Tract Map 38203 (P22-022))

5.1.i
Packet Pg. 833
Attachment: Planning Commission Staff Report (McLeish Ranch Planned Development Permit & Tentative Tract Map 38203 (P22-022))

3.2 Site Preparation - 2023
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category tons/yr MT/yr
Fugitive Dust 0.6533 0.0000 0.6533 0.3099 0.0000 0.3099 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 Off-Road 0.1148 1.2547 0.5481 1.7100e0030.0527 0.0527 0.0485 0.0485 0.0000 149.8386 149.8386 0.0485 0.0000 151.0501 Total 0.1148 1.2547 0.5481 1.7100e0030.6533 0.0527 0.7060 0.3099 0.0485 0.3584 0.0000 149.8386 149.8386 0.0485 0.0000 151.0501

3.1 Mitigation Measures Construction
Replace Ground Cover
Water Exposed Area
Unmitigated Construction On-Site
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
Site Preparation 7 18.00 6.00 0.00 14.70 6.90 20.00 LD_Mix HDT_Mix HHDT Grading 8 20.00 6.00 0.00 14.70 6.90 20.00 LD_Mix HDT_Mix HHDT Building Construction 9 1,061.00 400.00 0.00 14.70 6.90 20.00 LD_Mix HDT_Mix HHDT Paving 6 15.00 0.00 0.00 14.70 6.90 20.00 LD_Mix HDT_Mix HHDT Architectural Coating 1 212.00 0.00 0.00 14.70 6.90 20.00 LD_Mix HDT_Mix HHDT CalEEMod Version: CalEEMod.2020.4.0 Date: 10/17/2022 3:47 PM Page 9 of 40 McLeish Ranch Residential - Riverside-South Coast County, Annual EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied

4.1.j
Packet Pg. 596
Attachment: Appendix A - Air Energy GHG Report (McLeish Planned Development Permit & Tentative Tract Map 38203 (P22-022))

5.1.i
Packet Pg. 834
Attachment: Planning Commission Staff Report (McLeish Ranch Planned Development Permit & Tentative Tract Map 38203 (P22-022))

3.2 Site Preparation - 2023
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category tons/yr MT/yr
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 2.0000e0046.1700e0032.4600e0033.0000e0051.1400e0035.0000e0051.1900e0033.3000e0045.0000e0053.8000e0040.0000 3.0285 3.0285 3.0000e0054.5000e0043.1627 Worker 1.7500e0031.3000e0030.0170 5.0000e0055.9400e0033.0000e0055.9600e0031.5800e0033.0000e0051.6000e0030.0000 4.5702 4.5702 1.1000e0041.2000e0044.6087 Total 1.9500e0037.4700e0030.0194 8.0000e0057.0800e0038.0000e0057.1500e0031.9100e0038.0000e0051.9800e0030.0000 7.5987 7.5987 1.4000e0045.7000e0047.7714 Unmitigated Construction Off-Site
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category tons/yr MT/yr
Fugitive Dust 0.2421 0.0000 0.2421 0.1148 0.0000 0.1148 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 Off-Road 0.1148 1.2547 0.5481 1.7100e0030.0527 0.0527 0.0485 0.0485 0.0000 149.8384 149.8384 0.0485 0.0000 151.0499 Total 0.1148 1.2547 0.5481 1.7100e0030.2421 0.0527 0.2947 0.1148 0.0485 0.1633 0.0000 149.8384 149.8384 0.0485 0.0000 151.0499 Mitigated Construction On-Site
CalEEMod Version: CalEEMod.2020.4.0 Date: 10/17/2022 3:47 PM Page 10 of 40 McLeish Ranch Residential - Riverside-South Coast County, Annual EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied

4.1.j
Packet Pg. 597
Attachment: Appendix A - Air Energy GHG Report (McLeish Planned Development Permit & Tentative Tract Map 38203 (P22-022))

5.1.i
Packet Pg. 835
Attachment: Planning Commission Staff Report (McLeish Ranch Planned Development Permit & Tentative Tract Map 38203 (P22-022))

3.2 Site Preparation - 2023
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category tons/yr MT/yr
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 2.0000e0046.1700e0032.4600e0033.0000e0051.1400e0035.0000e0051.1900e0033.3000e0045.0000e0053.8000e0040.0000 3.0285 3.0285 3.0000e0054.5000e0043.1627 Worker 1.7500e0031.3000e0030.0170 5.0000e0055.9400e0033.0000e0055.9600e0031.5800e0033.0000e0051.6000e0030.0000 4.5702 4.5702 1.1000e0041.2000e0044.6087 Total 1.9500e0037.4700e0030.0194 8.0000e0057.0800e0038.0000e0057.1500e0031.9100e0038.0000e0051.9800e0030.0000 7.5987 7.5987 1.4000e0045.7000e0047.7714 Mitigated Construction Off-Site

3.3 Grading - 2023
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category tons/yr MT/yr
Fugitive Dust 0.7955 0.0000 0.7955 0.2920 0.0000 0.2920 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 Off-Road 0.3026 3.2290 2.1749 5.5400e0030.1294 0.1294 0.1190 0.1190 0.0000 486.5679 486.5679 0.1574 0.0000 490.5020 Total 0.3026 3.2290 2.1749 5.5400e0030.7955 0.1294 0.9248 0.2920 0.1190 0.4111 0.0000 486.5679 486.5679 0.1574 0.0000 490.5020 Unmitigated Construction On-Site
CalEEMod Version: CalEEMod.2020.4.0 Date: 10/17/2022 3:47 PM Page 11 of 40 McLeish Ranch Residential - Riverside-South Coast County, Annual EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied

4.1.j
Packet Pg. 598
Attachment: Appendix A - Air Energy GHG Report (McLeish Planned Development Permit & Tentative Tract Map 38203 (P22-022))

5.1.i
Packet Pg. 836
Attachment: Planning Commission Staff Report (McLeish Ranch Planned Development Permit & Tentative Tract Map 38203 (P22-022))

3.3 Grading - 2023
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category tons/yr MT/yr
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 5.0000e0040.0159 6.3500e0038.0000e0052.9400e0031.3000e0043.0700e0038.5000e0041.3000e0049.7000e0040.0000 7.8237 7.8237 8.0000e0051.1600e0038.1704 Worker 5.0300e0033.7300e0030.0487 1.4000e0040.0170 8.0000e0050.0171 4.5200e0037.0000e0054.6000e0030.0000 13.1181 13.1181 3.2000e0043.4000e00413.2287 Total 5.5300e0030.0197 0.0550 2.2000e0040.0200 2.1000e0040.0202 5.3700e0032.0000e0045.5700e0030.0000 20.9418 20.9418 4.0000e0041.5000e00321.3991 Unmitigated Construction Off-Site
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category tons/yr MT/yr
Fugitive Dust 0.2947 0.0000 0.2947 0.1082 0.0000 0.1082 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 Off-Road 0.3026 3.2290 2.1749 5.5400e0030.1294 0.1294 0.1190 0.1190 0.0000 486.5673 486.5673 0.1574 0.0000 490.5015 Total 0.3026 3.2290 2.1749 5.5400e0030.2947 0.1294 0.4241 0.1082 0.1190 0.2272 0.0000 486.5673 486.5673 0.1574 0.0000 490.5015 Mitigated Construction On-Site
CalEEMod Version: CalEEMod.2020.4.0 Date: 10/17/2022 3:47 PM Page 12 of 40 McLeish Ranch Residential - Riverside-South Coast County, Annual EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied

4.1.j
Packet Pg. 599
Attachment: Appendix A - Air Energy GHG Report (McLeish Planned Development Permit & Tentative Tract Map 38203 (P22-022))

5.1.i
Packet Pg. 837
Attachment: Planning Commission Staff Report (McLeish Ranch Planned Development Permit & Tentative Tract Map 38203 (P22-022))

3.3 Grading - 2023
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category tons/yr MT/yr
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 5.0000e0040.0159 6.3500e0038.0000e0052.9400e0031.3000e0043.0700e0038.5000e0041.3000e0049.7000e0040.0000 7.8237 7.8237 8.0000e0051.1600e0038.1704 Worker 5.0300e0033.7300e0030.0487 1.4000e0040.0170 8.0000e0050.0171 4.5200e0037.0000e0054.6000e0030.0000 13.1181 13.1181 3.2000e0043.4000e00413.2287 Total 5.5300e0030.0197 0.0550 2.2000e0040.0200 2.1000e0040.0202 5.3700e0032.0000e0045.5700e0030.0000 20.9418 20.9418 4.0000e0041.5000e00321.3991 Mitigated Construction Off-Site

3.4 Building Construction - 2023
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category tons/yr MT/yr
Off-Road 0.0354 0.3237 0.3655 6.1000e0040.0157 0.0157 0.0148 0.0148 0.0000 52.1561 52.1561 0.0124 0.0000 52.4663 Total 0.0354 0.3237 0.3655 6.1000e0040.0157 0.0157 0.0148 0.0148 0.0000 52.1561 52.1561 0.0124 0.0000 52.4663 Unmitigated Construction On-Site
CalEEMod Version: CalEEMod.2020.4.0 Date: 10/17/2022 3:47 PM Page 13 of 40 McLeish Ranch Residential - Riverside-South Coast County, Annual EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied

4.1.j
Packet Pg. 600
Attachment: Appendix A - Air Energy GHG Report (McLeish Planned Development Permit & Tentative Tract Map 38203 (P22-022))

5.1.i
Packet Pg. 838
Attachment: Planning Commission Staff Report (McLeish Ranch Planned Development Permit & Tentative Tract Map 38203 (P22-022))

3.4 Building Construction - 2023
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category tons/yr MT/yr
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 9.7500e0030.3086 0.1229 1.5700e0030.0569 2.5600e0030.0594 0.0164 2.4500e0030.0189 0.0000 151.4255 151.4255 1.5300e0030.0224 158.1361 Worker 0.0775 0.0574 0.7494 2.1800e0030.2624 1.2500e0030.2636 0.0697 1.1500e0030.0708 0.0000 202.0405 202.0405 4.9800e0035.3000e003203.7439 Total 0.0872 0.3660 0.8724 3.7500e0030.3193 3.8100e0030.3231 0.0861 3.6000e0030.0897 0.0000 353.4660 353.4660 6.5100e0030.0277 361.8801 Unmitigated Construction Off-Site
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category tons/yr MT/yr
Off-Road 0.0354 0.3237 0.3655 6.1000e0040.0157 0.0157 0.0148 0.0148 0.0000 52.1560 52.1560 0.0124 0.0000 52.4662 Total 0.0354 0.3237 0.3655 6.1000e0040.0157 0.0157 0.0148 0.0148 0.0000 52.1560 52.1560 0.0124 0.0000 52.4662 Mitigated Construction On-Site
CalEEMod Version: CalEEMod.2020.4.0 Date: 10/17/2022 3:47 PM Page 14 of 40 McLeish Ranch Residential - Riverside-South Coast County, Annual EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied

4.1.j
Packet Pg. 601
Attachment: Appendix A - Air Energy GHG Report (McLeish Planned Development Permit & Tentative Tract Map 38203 (P22-022))

5.1.i
Packet Pg. 839
Attachment: Planning Commission Staff Report (McLeish Ranch Planned Development Permit & Tentative Tract Map 38203 (P22-022))

3.4 Building Construction - 2023
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category tons/yr MT/yr
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 9.7500e0030.3086 0.1229 1.5700e0030.0569 2.5600e0030.0594 0.0164 2.4500e0030.0189 0.0000 151.4255 151.4255 1.5300e0030.0224 158.1361 Worker 0.0775 0.0574 0.7494 2.1800e0030.2624 1.2500e0030.2636 0.0697 1.1500e0030.0708 0.0000 202.0405 202.0405 4.9800e0035.3000e003203.7439 Total 0.0872 0.3660 0.8724 3.7500e0030.3193 3.8100e0030.3231 0.0861 3.6000e0030.0897 0.0000 353.4660 353.4660 6.5100e0030.0277 361.8801 Mitigated Construction Off-Site

3.4 Building Construction - 2024
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category tons/yr MT/yr
Off-Road 0.1928 1.7611 2.1179 3.5300e0030.0803 0.0803 0.0756 0.0756 0.0000 303.7223 303.7223 0.0718 0.0000 305.5179 Total 0.1928 1.7611 2.1179 3.5300e0030.0803 0.0803 0.0756 0.0756 0.0000 303.7223 303.7223 0.0718 0.0000 305.5179 Unmitigated Construction On-Site
CalEEMod Version: CalEEMod.2020.4.0 Date: 10/17/2022 3:47 PM Page 15 of 40 McLeish Ranch Residential - Riverside-South Coast County, Annual EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied

4.1.j
Packet Pg. 602
Attachment: Appendix A - Air Energy GHG Report (McLeish Planned Development Permit & Tentative Tract Map 38203 (P22-022))

5.1.i
Packet Pg. 840
Attachment: Planning Commission Staff Report (McLeish Ranch Planned Development Permit & Tentative Tract Map 38203 (P22-022))

3.4 Building Construction - 2024
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category tons/yr MT/yr
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 0.0559 1.7967 0.7076 9.0200e0030.3310 0.0148 0.3459 0.0955 0.0142 0.1097 0.0000 868.0511 868.0511 9.2300e0030.1282 906.4725 Worker 0.4213 0.2977 4.0876 0.0123 1.5277 6.9700e0031.5347 0.4057 6.4100e0030.4121 0.0000 1,148.140 3 1,148.140
3 0.0263 0.0287 1,157.335
0 Total 0.4772 2.0944 4.7953 0.0213 1.8587 0.0218 1.8805 0.5012 0.0206 0.5218 0.0000 2,016.191 4 2,016.191
4 0.0355 0.1568 2,063.807
5 Unmitigated Construction Off-Site
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category tons/yr MT/yr
Off-Road 0.1928 1.7611 2.1179 3.5300e0030.0803 0.0803 0.0756 0.0756 0.0000 303.7220 303.7220 0.0718 0.0000 305.5175 Total 0.1928 1.7611 2.1179 3.5300e0030.0803 0.0803 0.0756 0.0756 0.0000 303.7220 303.7220 0.0718 0.0000 305.5175 Mitigated Construction On-Site
CalEEMod Version: CalEEMod.2020.4.0 Date: 10/17/2022 3:47 PM Page 16 of 40 McLeish Ranch Residential - Riverside-South Coast County, Annual EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied

4.1.j
Packet Pg. 603
Attachment: Appendix A - Air Energy GHG Report (McLeish Planned Development Permit & Tentative Tract Map 38203 (P22-022))

5.1.i
Packet Pg. 841
Attachment: Planning Commission Staff Report (McLeish Ranch Planned Development Permit & Tentative Tract Map 38203 (P22-022))

3.4 Building Construction - 2024
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category tons/yr MT/yr
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 0.0559 1.7967 0.7076 9.0200e0030.3310 0.0148 0.3459 0.0955 0.0142 0.1097 0.0000 868.0511 868.0511 9.2300e0030.1282 906.4725 Worker 0.4213 0.2977 4.0876 0.0123 1.5277 6.9700e0031.5347 0.4057 6.4100e0030.4121 0.0000 1,148.140 3 1,148.140
3 0.0263 0.0287 1,157.335
0 Total 0.4772 2.0944 4.7953 0.0213 1.8587 0.0218 1.8805 0.5012 0.0206 0.5218 0.0000 2,016.191 4 2,016.191
4 0.0355 0.1568 2,063.807
5 Mitigated Construction Off-Site

3.4 Building Construction - 2025
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category tons/yr MT/yr
Off-Road 0.1785 1.6273 2.0991 3.5200e0030.0689 0.0689 0.0648 0.0648 0.0000 302.6549 302.6549 0.0711 0.0000 304.4335 Total 0.1785 1.6273 2.0991 3.5200e0030.0689 0.0689 0.0648 0.0648 0.0000 302.6549 302.6549 0.0711 0.0000 304.4335 Unmitigated Construction On-Site
CalEEMod Version: CalEEMod.2020.4.0 Date: 10/17/2022 3:47 PM Page 17 of 40 McLeish Ranch Residential - Riverside-South Coast County, Annual EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied

4.1.j
Packet Pg. 604
Attachment: Appendix A - Air Energy GHG Report (McLeish Planned Development Permit & Tentative Tract Map 38203 (P22-022))

5.1.i
Packet Pg. 842
Attachment: Planning Commission Staff Report (McLeish Ranch Planned Development Permit & Tentative Tract Map 38203 (P22-022))

3.4 Building Construction - 2025
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category tons/yr MT/yr
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 0.0550 1.7751 0.6970 8.8200e0030.3298 0.0148 0.3446 0.0951 0.0141 0.1093 0.0000 849.5001 849.5001 9.5300e0030.1252 887.0374 Worker 0.3928 0.2658 3.7985 0.0118 1.5219 6.6000e0031.5285 0.4041 6.0700e0030.4102 0.0000 1,115.947 0 1,115.947
0 0.0237 0.0266 1,124.473
0 Total 0.4477 2.0409 4.4955 0.0206 1.8516 0.0214 1.8730 0.4993 0.0202 0.5195 0.0000 1,965.447 1 1,965.447
1 0.0332 0.1518 2,011.510
4 Unmitigated Construction Off-Site
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category tons/yr MT/yr
Off-Road 0.1784 1.6273 2.0991 3.5200e0030.0689 0.0689 0.0648 0.0648 0.0000 302.6545 302.6545 0.0711 0.0000 304.4331 Total 0.1784 1.6273 2.0991 3.5200e0030.0689 0.0689 0.0648 0.0648 0.0000 302.6545 302.6545 0.0711 0.0000 304.4331 Mitigated Construction On-Site
CalEEMod Version: CalEEMod.2020.4.0 Date: 10/17/2022 3:47 PM Page 18 of 40 McLeish Ranch Residential - Riverside-South Coast County, Annual EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied

4.1.j
Packet Pg. 605
Attachment: Appendix A - Air Energy GHG Report (McLeish Planned Development Permit & Tentative Tract Map 38203 (P22-022))

5.1.i
Packet Pg. 843
Attachment: Planning Commission Staff Report (McLeish Ranch Planned Development Permit & Tentative Tract Map 38203 (P22-022))

3.4 Building Construction - 2025
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category tons/yr MT/yr
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 0.0550 1.7751 0.6970 8.8200e0030.3298 0.0148 0.3446 0.0951 0.0141 0.1093 0.0000 849.5001 849.5001 9.5300e0030.1252 887.0374 Worker 0.3928 0.2658 3.7985 0.0118 1.5219 6.6000e0031.5285 0.4041 6.0700e0030.4102 0.0000 1,115.947 0 1,115.947
0 0.0237 0.0266 1,124.473
0 Total 0.4477 2.0409 4.4955 0.0206 1.8516 0.0214 1.8730 0.4993 0.0202 0.5195 0.0000 1,965.447 1 1,965.447
1 0.0332 0.1518 2,011.510
4 Mitigated Construction Off-Site

3.4 Building Construction - 2026
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category tons/yr MT/yr
Off-Road 0.1785 1.6273 2.0991 3.5200e0030.0689 0.0689 0.0648 0.0648 0.0000 302.6549 302.6549 0.0711 0.0000 304.4335 Total 0.1785 1.6273 2.0991 3.5200e0030.0689 0.0689 0.0648 0.0648 0.0000 302.6549 302.6549 0.0711 0.0000 304.4335 Unmitigated Construction On-Site
CalEEMod Version: CalEEMod.2020.4.0 Date: 10/17/2022 3:47 PM Page 19 of 40 McLeish Ranch Residential - Riverside-South Coast County, Annual EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied

4.1.j
Packet Pg. 606
Attachment: Appendix A - Air Energy GHG Report (McLeish Planned Development Permit & Tentative Tract Map 38203 (P22-022))

5.1.i
Packet Pg. 844
Attachment: Planning Commission Staff Report (McLeish Ranch Planned Development Permit & Tentative Tract Map 38203 (P22-022))

3.4 Building Construction - 2026
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category tons/yr MT/yr
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 0.0543 1.7571 0.6904 8.6600e0030.3298 0.0147 0.3445 0.0951 0.0141 0.1092 0.0000 834.0481 834.0481 9.8700e0030.1227 870.8438 Worker 0.3695 0.2406 3.5673 0.0114 1.5219 6.2600e0031.5281 0.4041 5.7600e0030.4099 0.0000 1,090.073 8 1,090.073
8 0.0215 0.0250 1,098.074
1 Total 0.4238 1.9977 4.2577 0.0201 1.8516 0.0210 1.8726 0.4993 0.0198 0.5191 0.0000 1,924.121 9 1,924.121
9 0.0314 0.1477 1,968.917
8 Unmitigated Construction Off-Site
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category tons/yr MT/yr
Off-Road 0.1784 1.6273 2.0991 3.5200e0030.0689 0.0689 0.0648 0.0648 0.0000 302.6545 302.6545 0.0711 0.0000 304.4331 Total 0.1784 1.6273 2.0991 3.5200e0030.0689 0.0689 0.0648 0.0648 0.0000 302.6545 302.6545 0.0711 0.0000 304.4331 Mitigated Construction On-Site
CalEEMod Version: CalEEMod.2020.4.0 Date: 10/17/2022 3:47 PM Page 20 of 40 McLeish Ranch Residential - Riverside-South Coast County, Annual EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied

4.1.j
Packet Pg. 607
Attachment: Appendix A - Air Energy GHG Report (McLeish Planned Development Permit & Tentative Tract Map 38203 (P22-022))

5.1.i
Packet Pg. 845
Attachment: Planning Commission Staff Report (McLeish Ranch Planned Development Permit & Tentative Tract Map 38203 (P22-022))

3.4 Building Construction - 2026
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category tons/yr MT/yr
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 0.0543 1.7571 0.6904 8.6600e0030.3298 0.0147 0.3445 0.0951 0.0141 0.1092 0.0000 834.0481 834.0481 9.8700e0030.1227 870.8438 Worker 0.3695 0.2406 3.5673 0.0114 1.5219 6.2600e0031.5281 0.4041 5.7600e0030.4099 0.0000 1,090.073 8 1,090.073
8 0.0215 0.0250 1,098.074
1 Total 0.4238 1.9977 4.2577 0.0201 1.8516 0.0210 1.8726 0.4993 0.0198 0.5191 0.0000 1,924.121 9 1,924.121
9 0.0314 0.1477 1,968.917
8 Mitigated Construction Off-Site

3.4 Building Construction - 2027
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category tons/yr MT/yr
Off-Road 0.1785 1.6273 2.0991 3.5200e0030.0689 0.0689 0.0648 0.0648 0.0000 302.6549 302.6549 0.0711 0.0000 304.4335 Total 0.1785 1.6273 2.0991 3.5200e0030.0689 0.0689 0.0648 0.0648 0.0000 302.6549 302.6549 0.0711 0.0000 304.4335 Unmitigated Construction On-Site
CalEEMod Version: CalEEMod.2020.4.0 Date: 10/17/2022 3:47 PM Page 21 of 40 McLeish Ranch Residential - Riverside-South Coast County, Annual EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied

4.1.j
Packet Pg. 608
Attachment: Appendix A - Air Energy GHG Report (McLeish Planned Development Permit & Tentative Tract Map 38203 (P22-022))

5.1.i
Packet Pg. 846
Attachment: Planning Commission Staff Report (McLeish Ranch Planned Development Permit & Tentative Tract Map 38203 (P22-022))

3.4 Building Construction - 2027
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category tons/yr MT/yr
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 0.0537 1.7392 0.6851 8.4900e0030.3298 0.0146 0.3444 0.0951 0.0140 0.1091 0.0000 817.7937 817.7937 0.0102 0.1201 853.8238 Worker 0.3482 0.2193 3.3693 0.0111 1.5219 5.8800e0031.5277 0.4041 5.4100e0030.4095 0.0000 1,066.953 3 1,066.953
3 0.0196 0.0237 1,074.510
8 Total 0.4019 1.9584 4.0544 0.0196 1.8516 0.0205 1.8721 0.4993 0.0194 0.5187 0.0000 1,884.747 0 1,884.747
0 0.0298 0.1438 1,928.334
6 Unmitigated Construction Off-Site
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category tons/yr MT/yr
Off-Road 0.1784 1.6273 2.0991 3.5200e0030.0689 0.0689 0.0648 0.0648 0.0000 302.6545 302.6545 0.0711 0.0000 304.4331 Total 0.1784 1.6273 2.0991 3.5200e0030.0689 0.0689 0.0648 0.0648 0.0000 302.6545 302.6545 0.0711 0.0000 304.4331 Mitigated Construction On-Site
CalEEMod Version: CalEEMod.2020.4.0 Date: 10/17/2022 3:47 PM Page 22 of 40 McLeish Ranch Residential - Riverside-South Coast County, Annual EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied

4.1.j
Packet Pg. 609
Attachment: Appendix A - Air Energy GHG Report (McLeish Planned Development Permit & Tentative Tract Map 38203 (P22-022))

5.1.i
Packet Pg. 847
Attachment: Planning Commission Staff Report (McLeish Ranch Planned Development Permit & Tentative Tract Map 38203 (P22-022))

3.4 Building Construction - 2027
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category tons/yr MT/yr
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 0.0537 1.7392 0.6851 8.4900e0030.3298 0.0146 0.3444 0.0951 0.0140 0.1091 0.0000 817.7937 817.7937 0.0102 0.1201 853.8238 Worker 0.3482 0.2193 3.3693 0.0111 1.5219 5.8800e0031.5277 0.4041 5.4100e0030.4095 0.0000 1,066.953 3 1,066.953
3 0.0196 0.0237 1,074.510
8 Total 0.4019 1.9584 4.0544 0.0196 1.8516 0.0205 1.8721 0.4993 0.0194 0.5187 0.0000 1,884.747 0 1,884.747
0 0.0298 0.1438 1,928.334
6 Mitigated Construction Off-Site

3.5 Paving - 2027
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category tons/yr MT/yr
Off-Road 0.0503 0.4720 0.8018 1.2500e0030.0230 0.0230 0.0212 0.0212 0.0000 110.1059 110.1059 0.0356 0.0000 110.9962 Paving 0.0505 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 Total 0.1008 0.4720 0.8018 1.2500e0030.0230 0.0230 0.0212 0.0212 0.0000 110.1059 110.1059 0.0356 0.0000 110.9962 Unmitigated Construction On-Site
CalEEMod Version: CalEEMod.2020.4.0 Date: 10/17/2022 3:47 PM Page 23 of 40 McLeish Ranch Residential - Riverside-South Coast County, Annual EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied

4.1.j
Packet Pg. 610
Attachment: Appendix A - Air Energy GHG Report (McLeish Planned Development Permit & Tentative Tract Map 38203 (P22-022))

5.1.i
Packet Pg. 848
Attachment: Planning Commission Staff Report (McLeish Ranch Planned Development Permit & Tentative Tract Map 38203 (P22-022))

3.5 Paving - 2027
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category tons/yr MT/yr
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 2.0700e0031.3100e0030.0201 7.0000e0059.0700e0034.0000e0059.1000e0032.4100e0033.0000e0052.4400e0030.0000 6.3573 6.3573 1.2000e0041.4000e0046.4023 Total 2.0700e0031.3100e0030.0201 7.0000e0059.0700e0034.0000e0059.1000e0032.4100e0033.0000e0052.4400e0030.0000 6.3573 6.3573 1.2000e0041.4000e0046.4023 Unmitigated Construction Off-Site
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category tons/yr MT/yr
Off-Road 0.0503 0.4720 0.8018 1.2500e0030.0230 0.0230 0.0212 0.0212 0.0000 110.1058 110.1058 0.0356 0.0000 110.9960 Paving 0.0505 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 Total 0.1008 0.4720 0.8018 1.2500e0030.0230 0.0230 0.0212 0.0212 0.0000 110.1058 110.1058 0.0356 0.0000 110.9960 Mitigated Construction On-Site
CalEEMod Version: CalEEMod.2020.4.0 Date: 10/17/2022 3:47 PM Page 24 of 40 McLeish Ranch Residential - Riverside-South Coast County, Annual EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied

4.1.j
Packet Pg. 611
Attachment: Appendix A - Air Energy GHG Report (McLeish Planned Development Permit & Tentative Tract Map 38203 (P22-022))

5.1.i
Packet Pg. 849
Attachment: Planning Commission Staff Report (McLeish Ranch Planned Development Permit & Tentative Tract Map 38203 (P22-022))

3.5 Paving - 2027
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category tons/yr MT/yr
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 2.0700e0031.3100e0030.0201 7.0000e0059.0700e0034.0000e0059.1000e0032.4100e0033.0000e0052.4400e0030.0000 6.3573 6.3573 1.2000e0041.4000e0046.4023 Total 2.0700e0031.3100e0030.0201 7.0000e0059.0700e0034.0000e0059.1000e0032.4100e0033.0000e0052.4400e0030.0000 6.3573 6.3573 1.2000e0041.4000e0046.4023 Mitigated Construction Off-Site

3.6 Architectural Coating - 2027
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category tons/yr MT/yr
Archit. Coating 3.3710 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 Off-Road 9.4000e0030.0630 0.0995 1.6000e0042.8300e0032.8300e0032.8300e0032.8300e0030.0000 14.0429 14.0429 7.7000e0040.0000 14.0621 Total 3.3804 0.0630 0.0995 1.6000e0042.8300e0032.8300e0032.8300e0032.8300e0030.0000 14.0429 14.0429 7.7000e0040.0000 14.0621 Unmitigated Construction On-Site
CalEEMod Version: CalEEMod.2020.4.0 Date: 10/17/2022 3:47 PM Page 25 of 40 McLeish Ranch Residential - Riverside-South Coast County, Annual EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied

4.1.j
Packet Pg. 612
Attachment: Appendix A - Air Energy GHG Report (McLeish Planned Development Permit & Tentative Tract Map 38203 (P22-022))

5.1.i
Packet Pg. 850
Attachment: Planning Commission Staff Report (McLeish Ranch Planned Development Permit & Tentative Tract Map 38203 (P22-022))

3.6 Architectural Coating - 2027
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category tons/yr MT/yr
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 0.0293 0.0185 0.2837 9.4000e0040.1282 5.0000e0040.1287 0.0340 4.6000e0040.0345 0.0000 89.8500 89.8500 1.6500e0032.0000e00390.4864 Total 0.0293 0.0185 0.2837 9.4000e0040.1282 5.0000e0040.1287 0.0340 4.6000e0040.0345 0.0000 89.8500 89.8500 1.6500e0032.0000e00390.4864 Unmitigated Construction Off-Site
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category tons/yr MT/yr
Archit. Coating 3.3710 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 Off-Road 9.4000e0030.0630 0.0995 1.6000e0042.8300e0032.8300e0032.8300e0032.8300e0030.0000 14.0429 14.0429 7.7000e0040.0000 14.0620 Total 3.3804 0.0630 0.0995 1.6000e0042.8300e0032.8300e0032.8300e0032.8300e0030.0000 14.0429 14.0429 7.7000e0040.0000 14.0620 Mitigated Construction On-Site
CalEEMod Version: CalEEMod.2020.4.0 Date: 10/17/2022 3:47 PM Page 26 of 40 McLeish Ranch Residential - Riverside-South Coast County, Annual EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied

4.1.j
Packet Pg. 613
Attachment: Appendix A - Air Energy GHG Report (McLeish Planned Development Permit & Tentative Tract Map 38203 (P22-022))

5.1.i
Packet Pg. 851
Attachment: Planning Commission Staff Report (McLeish Ranch Planned Development Permit & Tentative Tract Map 38203 (P22-022))

3.6 Architectural Coating - 2027
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category tons/yr MT/yr
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 0.0293 0.0185 0.2837 9.4000e0040.1282 5.0000e0040.1287 0.0340 4.6000e0040.0345 0.0000 89.8500 89.8500 1.6500e0032.0000e00390.4864 Total 0.0293 0.0185 0.2837 9.4000e0040.1282 5.0000e0040.1287 0.0340 4.6000e0040.0345 0.0000 89.8500 89.8500 1.6500e0032.0000e00390.4864 Mitigated Construction Off-Site

4.0 Operational Detail - Mobile

4.1 Mitigation Measures Mobile
Improve Pedestrian Network
CalEEMod Version: CalEEMod.2020.4.0 Date: 10/17/2022 3:47 PM Page 27 of 40 McLeish Ranch Residential - Riverside-South Coast County, Annual EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied

4.1.j
Packet Pg. 614
Attachment: Appendix A - Air Energy GHG Report (McLeish Planned Development Permit & Tentative Tract Map 38203 (P22-022))

5.1.i
Packet Pg. 852
Attachment: Planning Commission Staff Report (McLeish Ranch Planned Development Permit & Tentative Tract Map 38203 (P22-022)) ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category tons/yr MT/yr
Mitigated 1.6901 2.5697 17.4810 0.0428 5.0028 0.0336 5.0364 1.3361 0.0315 1.3677 0.0000 4,104.311 8 4,104.311
8 0.1993 0.1940 4,167.104
1 Unmitigated 1.7070 2.6105 17.7673 0.0437 5.1049 0.0343 5.1391 1.3634 0.0321 1.3955 0.0000 4,185.829 3 4,185.829
3 0.2021 0.1972 4,249.651
0 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
City Park 0.00 0.00 0.00
Other Asphalt Surfaces 0.00 0.00 0.00
Single Family Housing 3,998.32 4,044.96 3625.20 13,503,491 13,233,421 Total 3,998.32 4,044.96 3,625.20 13,503,491 13,233,421
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 City Park 16.60 8.40 6.90 33.00 48.00 19.00 66 28 6
Other Asphalt Surfaces 16.60 8.40 6.90 0.00 0.00 0.00 0 0 0 Single Family Housing 14.70 5.90 8.70 40.20 19.20 40.60 86 11 3

4.4 Fleet Mix
Land Use LDA LDT1 LDT2 MDV LHD1 LHD2 MHD HHD OBUS UBUS MCY SBUS MH City Park 0.544951 0.056922 0.175129 0.132247 0.024165 0.006855 0.011655 0.018450 0.000608 0.000293 0.023172 0.001089 0.004464 Other Asphalt Surfaces 0.544951 0.056922 0.175129 0.132247 0.024165 0.006855 0.011655 0.018450 0.000608 0.000293 0.023172 0.001089 0.004464 CalEEMod Version: CalEEMod.2020.4.0 Date: 10/17/2022 3:47 PM Page 28 of 40 McLeish Ranch Residential - Riverside-South Coast County, Annual EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied

4.1.j
Packet Pg. 615
Attachment: Appendix A - Air Energy GHG Report (McLeish Planned Development Permit & Tentative Tract Map 38203 (P22-022))

5.1.i
Packet Pg. 853
Attachment: Planning Commission Staff Report (McLeish Ranch Planned Development Permit & Tentative Tract Map 38203 (P22-022)) Single Family Housing 0.544951 0.056922 0.175129 0.132247 0.024165 0.006855 0.011655 0.018450 0.000608 0.000293 0.023172 0.001089 0.004464

5.0 Energy Detail
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category tons/yr MT/yr
Electricity
Mitigated

0.0000 0.0000 0.0000 0.0000 0.0000 239.2895 239.2895 0.0202 2.4500e003240.5239 Electricity
Unmitigated

0.0000 0.0000 0.0000 0.0000 0.0000 598.8987 598.8987 0.0506 6.1300e003601.9883 NaturalGas
Mitigated

0.0647 0.5527 0.2352 3.5300e0030.0447 0.0447 0.0447 0.0447 0.0000 640.0275 640.0275 0.0123 0.0117 643.8309 NaturalGas
Unmitigated

0.0647 0.5527 0.2352 3.5300e0030.0447 0.0447 0.0447 0.0447 0.0000 640.0275 640.0275 0.0123 0.0117 643.8309 Historical Energy Use: N

5.1 Mitigation Measures Energy
Kilowatt Hours of Renewable Electricity Generated
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4.1.j
Packet Pg. 616
Attachment: Appendix A - Air Energy GHG Report (McLeish Planned Development Permit & Tentative Tract Map 38203 (P22-022))

5.1.i
Packet Pg. 854
Attachment: Planning Commission Staff Report (McLeish Ranch Planned Development Permit & Tentative Tract Map 38203 (P22-022))

5.2 Energy by Land Use - NaturalGas
NaturalGa
s Use
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Land Use kBTU/yr tons/yr MT/yr
City Park 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 Other Asphalt
Surfaces
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 Single Family
Housing

1.19937e
+007

0.0647 0.5527 0.2352 3.5300e0030.0447 0.0447 0.0447 0.0447 0.0000 640.0275 640.0275 0.0123 0.0117 643.8309 Total 0.0647 0.5527 0.2352 3.5300e0030.0447 0.0447 0.0447 0.0447 0.0000 640.0275 640.0275 0.0123 0.0117 643.8309 Unmitigated
CalEEMod Version: CalEEMod.2020.4.0 Date: 10/17/2022 3:47 PM Page 30 of 40 McLeish Ranch Residential - Riverside-South Coast County, Annual EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied

4.1.j
Packet Pg. 617
Attachment: Appendix A - Air Energy GHG Report (McLeish Planned Development Permit & Tentative Tract Map 38203 (P22-022))

5.1.i
Packet Pg. 855
Attachment: Planning Commission Staff Report (McLeish Ranch Planned Development Permit & Tentative Tract Map 38203 (P22-022))

5.2 Energy by Land Use - NaturalGas
NaturalGa
s Use
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Land Use kBTU/yr tons/yr MT/yr
City Park 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 Other Asphalt
Surfaces
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 Single Family
Housing

1.19937e
+007

0.0647 0.5527 0.2352 3.5300e0030.0447 0.0447 0.0447 0.0447 0.0000 640.0275 640.0275 0.0123 0.0117 643.8309 Total 0.0647 0.5527 0.2352 3.5300e0030.0447 0.0447 0.0447 0.0447 0.0000 640.0275 640.0275 0.0123 0.0117 643.8309 Mitigated
CalEEMod Version: CalEEMod.2020.4.0 Date: 10/17/2022 3:47 PM Page 31 of 40 McLeish Ranch Residential - Riverside-South Coast County, Annual EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied

4.1.j
Packet Pg. 618
Attachment: Appendix A - Air Energy GHG Report (McLeish Planned Development Permit & Tentative Tract Map 38203 (P22-022))

5.1.i
Packet Pg. 856
Attachment: Planning Commission Staff Report (McLeish Ranch Planned Development Permit & Tentative Tract Map 38203 (P22-022))

5.3 Energy by Land Use - Electricity
Electricity
Use
Total CO2 CH4 N2O CO2e
Land Use kWh/yr MT/yr
City Park 0 0.0000 0.0000 0.0000 0.0000
Other Asphalt
Surfaces
0 0.0000 0.0000 0.0000 0.0000
Single Family
Housing

3.37702e
+006
598.8987 0.0506 6.1300e003601.9883
Total 598.8987 0.0506 6.1300e003601.9883
Unmitigated
CalEEMod Version: CalEEMod.2020.4.0 Date: 10/17/2022 3:47 PM Page 32 of 40 McLeish Ranch Residential - Riverside-South Coast County, Annual EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied

4.1.j
Packet Pg. 619
Attachment: Appendix A - Air Energy GHG Report (McLeish Planned Development Permit & Tentative Tract Map 38203 (P22-022))

5.1.i
Packet Pg. 857
Attachment: Planning Commission Staff Report (McLeish Ranch Planned Development Permit & Tentative Tract Map 38203 (P22-022))

5.3 Energy by Land Use - Electricity

6.0 Area Detail

6.1 Mitigation Measures Area
Electricity
Use
Total CO2 CH4 N2O CO2e
Land Use kWh/yr MT/yr
City Park -675911 -119.8698 -0.0101 -0.0012 -120.4881
Other Asphalt
Surfaces
-675911 -119.8698 -0.0101 -0.0012 -120.4881
Single Family
Housing

2.70111e
+006
479.0290 0.0404 4.9000e003481.5002
Total 239.2895 0.0202 2.4400e003240.5239
Mitigated
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4.1.j
Packet Pg. 620
Attachment: Appendix A - Air Energy GHG Report (McLeish Planned Development Permit & Tentative Tract Map 38203 (P22-022))

5.1.i
Packet Pg. 858
Attachment: Planning Commission Staff Report (McLeish Ranch Planned Development Permit & Tentative Tract Map 38203 (P22-022)) ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
Category tons/yr MT/yr
Mitigated 4.2054 0.0503 4.3691 2.3000e0040.0242 0.0242 0.0242 0.0242 0.0000 7.1437 7.1437 6.8400e0030.0000 7.3148 Unmitigated 4.2054 0.0503 4.3691 2.3000e0040.0242 0.0242 0.0242 0.0242 0.0000 7.1437 7.1437 6.8400e0030.0000 7.3148

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

0.3371 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 Consumer
Products

3.7370 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 0.1312 0.0503 4.3691 2.3000e0040.0242 0.0242 0.0242 0.0242 0.0000 7.1437 7.1437 6.8400e0030.0000 7.3148 Total 4.2054 0.0503 4.3691 2.3000e0040.0242 0.0242 0.0242 0.0242 0.0000 7.1437 7.1437 6.8400e0030.0000 7.3148 Unmitigated
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4.1.j
Packet Pg. 621
Attachment: Appendix A - Air Energy GHG Report (McLeish Planned Development Permit & Tentative Tract Map 38203 (P22-022))

5.1.i
Packet Pg. 859
Attachment: Planning Commission Staff Report (McLeish Ranch Planned Development Permit & Tentative Tract Map 38203 (P22-022))

6.2 Area by SubCategory

7.0 Water Detail

7.1 Mitigation Measures Water
Install Low Flow Bathroom Faucet
Install Low Flow Kitchen Faucet
Install Low Flow Toilet
Install Low Flow Shower
Use Water Efficient Irrigation System
ROG NOx CO SO2 Fugitive
PM10
Exhaust
PM10
PM10
Total
Fugitive
PM2.5
Exhaust
PM2.5
PM2.5
Total
Bio- CO2 NBio- CO2 Total CO2 CH4 N2O CO2e
SubCategory tons/yr MT/yr
Architectural
Coating

0.3371 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 Consumer
Products

3.7370 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 0.1312 0.0503 4.3691 2.3000e0040.0242 0.0242 0.0242 0.0242 0.0000 7.1437 7.1437 6.8400e0030.0000 7.3148 Total 4.2054 0.0503 4.3691 2.3000e0040.0242 0.0242 0.0242 0.0242 0.0000 7.1437 7.1437 6.8400e0030.0000 7.3148 Mitigated
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4.1.j
Packet Pg. 622
Attachment: Appendix A - Air Energy GHG Report (McLeish Planned Development Permit & Tentative Tract Map 38203 (P22-022))

5.1.i
Packet Pg. 860
Attachment: Planning Commission Staff Report (McLeish Ranch Planned Development Permit & Tentative Tract Map 38203 (P22-022)) Total CO2 CH4 N2O CO2e
Category MT/yr
Mitigated 114.8461 0.7292 0.0181 138.4730
Unmitigated 133.0475 0.9107 0.0225 162.5269

7.2 Water by Land Use
Indoor/Out
door Use
Total CO2 CH4 N2O CO2e
Land Use Mgal MT/yr
City Park 0 / 13.285 26.1756 2.2100e0032.7000e00426.3106 Other Asphalt
Surfaces
0 / 0 0.0000 0.0000 0.0000 0.0000
Single Family
Housing

27.6253 /

17.416
106.8719 0.9085 0.0223 136.2162
Total 133.0475 0.9107 0.0225 162.5269
Unmitigated
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4.1.j
Packet Pg. 623
Attachment: Appendix A - Air Energy GHG Report (McLeish Planned Development Permit & Tentative Tract Map 38203 (P22-022))

5.1.i
Packet Pg. 861
Attachment: Planning Commission Staff Report (McLeish Ranch Planned Development Permit & Tentative Tract Map 38203 (P22-022))

7.2 Water by Land Use
Indoor/Out
door Use
Total CO2 CH4 N2O CO2e
Land Use Mgal MT/yr
City Park 0 /

12.4746

24.5789 2.0700e0032.5000e00424.7057
Other Asphalt
Surfaces
0 / 0 0.0000 0.0000 0.0000 0.0000
Single Family
Housing

22.1002 /

16.3536

90.2672 0.7272 0.0179 113.7674
Total 114.8461 0.7292 0.0181 138.4730
Mitigated

8.0 Waste Detail

8.1 Mitigation Measures Waste
Institute Recycling and Composting Services
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4.1.j
Packet Pg. 624
Attachment: Appendix A - Air Energy GHG Report (McLeish Planned Development Permit & Tentative Tract Map 38203 (P22-022))

5.1.i
Packet Pg. 862
Attachment: Planning Commission Staff Report (McLeish Ranch Planned Development Permit & Tentative Tract Map 38203 (P22-022)) Total CO2 CH4 N2O CO2e
MT/yr
Mitigated 65.0140 3.8422 0.0000 161.0693
Unmitigated 130.0279 7.6844 0.0000 322.1386
Category/Year

8.2 Waste by Land Use
Waste
Disposed
Total CO2 CH4 N2O CO2e
Land Use tons MT/yr
City Park 0.96 0.1949 0.0115 0.0000 0.4828
Other Asphalt
Surfaces
0 0.0000 0.0000 0.0000 0.0000
Single Family
Housing
639.6 129.8330 7.6729 0.0000 321.6558
Total 130.0279 7.6844 0.0000 322.1386
Unmitigated
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4.1.j
Packet Pg. 625
Attachment: Appendix A - Air Energy GHG Report (McLeish Planned Development Permit & Tentative Tract Map 38203 (P22-022))

5.1.i
Packet Pg. 863
Attachment: Planning Commission Staff Report (McLeish Ranch Planned Development Permit & Tentative Tract Map 38203 (P22-022))

8.2 Waste by Land Use
Waste
Disposed
Total CO2 CH4 N2O CO2e
Land Use tons MT/yr
City Park 0.48 0.0974 5.7600e0030.0000 0.2414
Other Asphalt
Surfaces
0 0.0000 0.0000 0.0000 0.0000
Single Family
Housing
319.8 64.9165 3.8365 0.0000 160.8279
Total 65.0140 3.8422 0.0000 161.0693
Mitigated

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
CalEEMod Version: CalEEMod.2020.4.0 Date: 10/17/2022 3:47 PM Page 39 of 40 McLeish Ranch Residential - Riverside-South Coast County, Annual EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied

4.1.j
Packet Pg. 626
Attachment: Appendix A - Air Energy GHG Report (McLeish Planned Development Permit & Tentative Tract Map 38203 (P22-022))

5.1.i
Packet Pg. 864
Attachment: Planning Commission Staff Report (McLeish Ranch Planned Development Permit & Tentative Tract Map 38203 (P22-022))

11.0 Vegetation
CalEEMod Version: CalEEMod.2020.4.0 Date: 10/17/2022 3:47 PM Page 40 of 40 McLeish Ranch Residential - Riverside-South Coast County, Annual EMFAC Off-Model Adjustment Factors for Gasoline Light Duty Vehicle to Account for the SAFE Vehicle Rule Applied

4.1.j
Packet Pg. 627
Attachment: Appendix A - Air Energy GHG Report (McLeish Planned Development Permit & Tentative Tract Map 38203 (P22-022))

5.1.i
Packet Pg. 865
Attachment: Planning Commission Staff Report (McLeish Ranch Planned Development Permit & Tentative Tract Map 38203 (P22-022))

APPENDIX B
Biological Technical Report and
MSHCP Consistency Analysis

4.1.k
Packet Pg. 628 Attachment: Appendix B - Biological Technical Report & MSHCP Consistency Analysis (McLeish Planned Development Permit & Tentative

5.1.i
Packet Pg. 866 Attachment: Planning Commission Staff Report (McLeish Ranch Planned Development Permit & Tentative Tract Map 38203 (P22-022))

4.1.k
Packet Pg. 629 Attachment: Appendix B - Biological Technical Report & MSHCP Consistency Analysis (McLeish Planned Development Permit & Tentative

5.1.i
Packet Pg. 867 Attachment: Planning Commission Staff Report (McLeish Ranch Planned Development Permit & Tentative Tract Map 38203 (P22-022)) Biological Technical Report and
MSHCP Consistency Analysis for
McLeish Ranch Project
Tentative Tract 31282

Prepared for:

JAB Mill Creek, LLC
23986 Aliso Creek Road, Suite 711
Laguna Niguel, CA 92677
Contact: William Inghram
Prepared by:
30900 Rancho Viejo Road, Suite 100
San Juan Capistrano, California 92675
Phone: 949.489.2700
Contacts:

Wade Caffrey (Vice President)
Sierra Valladares (Senior Project Manager / Biologist)
Molly Burdick-Whipp (Project Manager)

November 2024

4.1.k
Packet Pg. 630 Attachment: Appendix B - Biological Technical Report & MSHCP Consistency Analysis (McLeish Planned Development Permit & Tentative

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Packet Pg. 631 Attachment: Appendix B - Biological Technical Report & MSHCP Consistency Analysis (McLeish Planned Development Permit & Tentative

5.1.i
Packet Pg. 869 Attachment: Planning Commission Staff Report (McLeish Ranch Planned Development Permit & Tentative Tract Map 38203 (P22-022)) McLeish Ranch Project Tentative Tract 31282
Biological Technical Report
i November 2024

TABLE OF CONTENTS

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

1.1 Purpose and Approach ...............................................................................................................1

1.2 Terms......................................................................................................................................... 1

1.3 Project Site Location...................................................................................................................1

1.4 Regional Environmental Setting .................................................................................................2

2.0 PROJECT DESCRIPTION.....................................................................................................................3

2.1 Current Conditions and Past Site Use .........................................................................................3

3.0 REGULATORY CONTEXT ...................................................................................................................4

3.1 Impacts Terminology..................................................................................................................5

4.0 METHODS.........................................................................................................................................6

4.1 Literature Review.......................................................................................................................6

4.1.1 Sensitive Plant Communities ..............................................................................................6

4.1.2 Special Status Species.........................................................................................................6

4.1.3 Jurisdictional Waters ..........................................................................................................8

4.2 Field Methodology .....................................................................................................................9

4.2.1 Vegetation Communities and Plants ..................................................................................9

4.2.2 Wildlife................................................................................................................................9

4.2.3 Jurisdictional Waters ........................................................................................................12

5.0 RESULTS .........................................................................................................................................14

5.1 Vegetation................................................................................................................................ 14

5.1.1 Vegetation Communities/Land Cover...............................................................................14

5.1.2 Plants................................................................................................................................16

5.1.3 Soils...................................................................................................................................16

5.2 Wildlife..................................................................................................................................... 17

5.2.1 Sensitive Wildlife Species with Potential to Occur ...........................................................17

5.2.2 Critical Habitat..................................................................................................................21

5.2.3 Wildlife Movement...........................................................................................................21

5.2.4 Avian Nesting and Bat Roosts...........................................................................................22

5.3 Jurisdictional Waters................................................................................................................ 23

5.3.1 National Wetland Inventory .............................................................................................23

5.3.2 Hydrology..........................................................................................................................23

5.3.3 Jurisdictional Waters ........................................................................................................23

6.0 PROJECT IMPACTS..........................................................................................................................24

6.1 Vegetation................................................................................................................................ 24

6.1.1 Potential Impacts to Vegetation Communities.................................................................24

6.1.2 Potential Impacts to Special Status Plants........................................................................24

6.2 Wildlife..................................................................................................................................... 25

6.2.1 Potential Impacts to Special Status Wildlife .....................................................................25

6.2.2 Potential Impacts to Critical Habitat.................................................................................26

6.2.3 Potential Impacts to Wildlife Movement/Nesting/Bat Roosts.........................................26

6.3 Jurisdictional Waters................................................................................................................ 27

6.3.1 Potential Impacts to Jurisdictional Waters.......................................................................27

7.0 MSHCP CONSISTENCY ANALYSIS....................................................................................................28

7.1 Reserve Assembly Analysis....................................................................................................... 28

7.2 Project Area in Relation to MSHCP ........................................................................................... 28

7.2.1 Public Quasi-Public Lands.................................................................................................28

4.1.k
Packet Pg. 632 Attachment: Appendix B - Biological Technical Report & MSHCP Consistency Analysis (McLeish Planned Development Permit & Tentative

5.1.i
Packet Pg. 870 Attachment: Planning Commission Staff Report (McLeish Ranch Planned Development Permit & Tentative Tract Map 38203 (P22-022)) McLeish Ranch Project Tentative Tract 31282
Biological Technical Report
ii November 2024

7.2.2 Covered Roads..................................................................................................................28

7.2.3 Urban/Wildlands Interface (Section 6.1.4).......................................................................28

7.3 Protection Species Associated with Riparian/Riverine Areas and Vernal Pools (Section 6.1.2). 29

7.3.1 Riparian/Riverine ..............................................................................................................29

7.3.2 Vernal Pools and Fairy Shrimp..........................................................................................30

7.3.3 Riparian Birds....................................................................................................................30

7.4 Protection of Narrow Endemic Plant Species (Section 6.1.3) .................................................... 31

7.4.1 Methods............................................................................................................................32

7.4.2 Existing Conditions and Results........................................................................................32

7.4.3 Impacts and Recommendations.......................................................................................32

7.5 Additional Survey Needs and Procedures (Section 6.3.2).......................................................... 32

7.5.1 Criteria Area Plant Species................................................................................................32

7.5.2 Amphibians.......................................................................................................................32

7.5.3 Burrowing Owl ..................................................................................................................33

7.5.4 Mammals..........................................................................................................................33

7.6 Information on Other Species................................................................................................... 33

7.6.1 Delhi Sands Flower Loving Fly...........................................................................................33

7.6.2 Species Not Adequately Conserved..................................................................................34

8.0 CUMULATIVE IMPACTS ..................................................................................................................35

9.0 BEST MANAGEMENT PRACTICES ...................................................................................................36

10.0 RECOMMENDATIONS ....................................................................................................................38

11.0 REFERENCES...................................................................................................................................42 TABLES
Table 1. Survey Data for BUOW Focused Surveys......................................................................... 11 Table 2. Vegetation Communities/Land Cover Observed ............................................................. 14 Table 3. Potential Impacts to Vegetation Communities within the Project Footprint .................. 24

FIGURES
Figure 1. Regional Map
Figure 2. Aerial Map
Figure 3. USGS Topographic Map
Figure 4. BUOW Study Area Map
Figure 5. Vegetation Map
Figure 6. Soils Map
Figure 7a. CNDDB Animal Occurrences / Critical Habitat Map Figure 7b. CNDDB Plant Occurrences
Figure 8. MSHCP Information Map

4.1.k
Packet Pg. 633 Attachment: Appendix B - Biological Technical Report & MSHCP Consistency Analysis (McLeish Planned Development Permit & Tentative

5.1.i
Packet Pg. 871 Attachment: Planning Commission Staff Report (McLeish Ranch Planned Development Permit & Tentative Tract Map 38203 (P22-022)) McLeish Ranch Project Tentative Tract 31282
Biological Technical Report
iii November 2024

APPENDICES
Appendix A Site Photographs
Appendix B Plant and Wildlife Species Observed
Appendix C Special Status Species Potential Occurrence Determination

4.1.k
Packet Pg. 634 Attachment: Appendix B - Biological Technical Report & MSHCP Consistency Analysis (McLeish Planned Development Permit & Tentative

5.1.i
Packet Pg. 872 Attachment: Planning Commission Staff Report (McLeish Ranch Planned Development Permit & Tentative Tract Map 38203 (P22-022)) McLeish Ranch Project Tentative Tract 31282
Biological Technical Report
1 November 2024

1.0 INTRODUCTION
On behalf of JAB Mill Creek, LLC, VCS Environmental (VCS) prepared this Biological Technical Report and MSHCP Consistency Analysis, which incorporates the findings from biological surveys conducted by VCS in October/November 2021, March/April 2022 and July 2024. VCS prepared this report to support California Environmental Quality Act (CEQA) documentation for the McLeish Ranch Project Tentative Tract 31282 [herein after referred to as the “Project site”] with the City of San Jacinto (City) as the lead agency.

1.1 Purpose and Approach
This report provides a summary of the conditions present during the October/November 2021, March/April 2022, and July 2024 biological surveys, which included an assessment of the potential presence of sensitive biological resources, and an analysis of the potential impacts to those resources with implementation of the Project. This report identifies the current biological resources present within the Project site including habitat communities, and the potential for occurrence of special status plant and wildlife species. The potential biological impacts in view of federal, state, and local laws and regulations are also identified in this report. While general biological resources are discussed, the focus of this assessment is on those resources considered to be sensitive. The report also recommends, as appropriate, Best Management Practices (BMPs) and uniformly applied development policies or standardsthat are consistent with the General Plan Action RM-1d, Action RM-1i, and Action RM-1j to address potential impacts to biological resources. This report was prepared based upon results of a literature review and field surveys.

1.2 Terms
The following terms will be used throughout this document and are defined as follows:
• Project site: the approximately 96-acre Project site consisting of Assessor Parcel Numbers (APNs) 436-080-001, 436-080-002, and 436-080-006.
• Project Footprint: the approximately 96-acre area subject to impacts by Project activities that includes the offsite roadway improvement area along Lyon Avenue. • Burrowing Owl Study Area: includes the Project site and a 500-foot buffer area around the Project site. This Study Area includes the entire Project Footprint.

1.3 Project Site Location
The Project is located in the City of San Jacinto, Riverside County, California. The site is situated west of Lyon Avenue, southwest of Ramona Boulevard, east of Sanderson Avenue, and north of the San Jacinto Reservoir. The Project site is regionally accessible from State Route 79 (SR-79) to

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the northeast [Figures 1 and 2; Regional Map and Aerial Map]. The Project site is surrounded by a residential subdivision and agricultural/vacant land to the north, agricultural/vacant land to the east, the San Jacinto Reservoir to the south, and agricultural/vacant land to the west. The Project site is located within Section 21, Township 4 South, and Range 1 West of the United States Geological Survey (USGS) San Jacinto 7.5-minute quadrangle map (Figure 3).

1.4 Regional Environmental Setting
The Project site is located within the San Jacinto Valley, approximately 1.3 miles south-southwest of the San Jacinto River and adjacent to the San Jacinto Reservoir. This area of Riverside County is characterized by residential and commercial development and open space/agricultural uses.

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2.0 PROJECT DESCRIPTION
The proposed project requests approval of a Tentative Tract Map, Planed Development Permit and Site Plan approval to allow for the development of up to 424 single-family homes and open space on an approximately 96-acre Project site. The Project site consists of approximately 84.91 acres of residential development area and approximately 11.09 acres of open space and landscape areas. The Project site is in the City of San Jacinto, Riverside County. The site is situated west of Lyon Avenue, southwest of Ramona Boulevard, east of Sanderson Avenue, and north of the San Jacinto Reservoir. The Project site can be locally accessed from Lyon Avenue. The project is comprised of three parcels, identified by Assessor’s Parcel Numbers (APNs) 436-080-001, 436- 080-002, and 436-080-006. The Project site is currently agricultural/vacant, with a slight grade and irregularly shaped.

2.1 Current Conditions and Past Site Use
The Project site supports four (4) vegetation communities/land cover types including agricultural crops, disturbed/developed, herbaceous non-native forbs and grasses, and tamarisk thickets. A majority of the site is maintained as part of weed/fire abatement. Site photographs are attached as Appendix A.

The topography throughout the Project site is generally flat. Elevations on the Project site range from 1,470 – 1,492 feet (~448 – 455 meters) above mean sea level (MSL) (Google Earth 2021).

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3.0 REGULATORY CONTEXT
The following is a list of the relevant federal, state, and local laws and regulations that apply to protecting plant communities, plants, wildlife, and water quality from impacts within the Project Footprint.

Agency/
Organization Laws/Regulations Notes
Federal Clean Water Act (CWA) Section 401 Jurisdictional Waters of the U.S. are absent from the Project Footprint; therefore, a Section 401 permit from the Regional Water Quality Control Board (RWQCB) will
not be required.

CWA Section 404 Jurisdictional Waters of the U.S. are absent from the Project Footprint; therefore, a Section 404 permit from the United States Army Corps of Engineers (USACE) will
not be required.

CWA Section 408 No facilities subject to Section 408 occur within the Project.

Migratory Bird Treaty Act (MBTA) Compliance with the MBTA will be achieved with preconstruction surveys for nesting birds within three days prior to initiation of work.

Endangered Species Act (ESA) No federally listed species were observed on the Project Footprint during the 2021/2022 biological
surveys. Least Bell’s vireo (Vireo bellii pusillus) was heard calling within offsite willow habitat west of the Project Footprint; southwestern willow flycatcher
(Empidonax traillii extimus) has a moderate potential
to occur within the offsite willow habitat. Compliance
with the ESA will be achieved with pre-construction
surveys for nesting birds within three days prior to
initiation of work.

State Fish and Game Code (FGC) Section
1600
Resources jurisdictional to the California Department
of Fish and Wildlife (CDFW) are absent from the Project Footprint. Therefore, a Streambed Alteration
Agreement through CDFW will not be required.

FGC Sections 3503, 3503.5, and 3513 These FGC sections offer protection of nesting birds, birds-of-prey, and migratory birds. Compliance will be
maintained with a pre-construction survey for nesting
birds (including birds-of-prey and migratory birds)
within three days prior to initiation of work.

FGC Section 4150 Prohibits incidental or deliberate “take” of non-game mammals, including bats. Suitable roosting habitat
occurs within adjacent riparian habitat; compliance will be maintained through pre-construction surveys for
bats during the identified maternity season.

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California Endangered Species Act
(CESA)
No state listed or candidate species were observed on
the Project Footprint during the 2021/2022 biological
surveys. As discussed above, least Bell’s vireo was
heard calling within offsite willow habitat west of the Project Footprint and southwestern willow flycatcher
has a moderate potential to occur within the offsite
willow habitat. Compliance with the CESA will be
achieved with pre-construction surveys for nesting
birds within three days prior to initiation of work.

Porter-Cologne Water Quality
Control Act and Waste Discharge
Requirements (WDR)
Waters jurisdictional to the RWQCB are absent from
the Project Footprint; therefore, authorization from
the RWQCB will not be required.

County of
Riverside
Western Riverside Multiple Species
Habitat Conservation Plan (MSHCP)
The Project is located within the MSHCP and will
therefore need to comply with provisions and
regulations set forth by the MSHCP. Section 7.0 of this Biological Technical Report includes an MSHCP
Consistency Analysis.

3.1 Impacts Terminology
Potential impacts to biological resources that could result from implementation of the proposed Project are discussed in Section 6.0 of this report.

Biological resources may be either directly or indirectly impacted by a project. Furthermore, direct and indirect impacts may be either permanent or temporary in nature. These impact categories are defined below. These terms will be used throughout the document. • Direct Impact: Any loss, alteration, disturbance, or destruction of biological resources that would result from project-related activities is a direct impact. Examples include vegetation clearing, encroaching into wetlands, diverting natural surface water flows, and the loss of individual species and/or their habitats. Direct impacts are long-term. • Indirect Impact: As a result of project-related activities, biological resources may also be affected in a manner that is not direct. Examples of indirect impacts include elevated noise, light, and dust levels, increased human activity, decreased water quality, erosion created by the removal of vegetation, and the introduction of invasive plants and unnatural predators (e.g., domestic cats and dogs). These indirect impacts may be both short-term and long-term in their extent.
• Permanent Impacts: All impacts that result in the long-term or irreversible removal of biological resources are considered permanent. Examples include constructing a building or permanent road on an area containing biological resources. • Temporary Impacts: Any impacts considered to have reversible effects on biological resources can be viewed as temporary. Examples include the generation of fugitive dust during construction, removing vegetation, and either allowing the natural vegetation to recolonize or actively revegetating the impact area.

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4.0 METHODS

4.1 Literature Review

4.1.1 Sensitive Plant Communities
Sensitive plant communities (sensitive habitats) as defined below, are of limited distribution statewide or within a county or region and are often vulnerable to environmental effects of projects. Sensitive habitats are often threatened with local extirpation and are therefore considered as valuable biological resources. Plant communities are considered “sensitive” by the California Native Plant Society (CNPS) and CDFW if they meet any of the following criteria listed below.
• The habitat is recognized and considered sensitive by CDFW, United States Fish and Wildlife Service (USFWS), and/or special interest groups such as CNPS. • The habitat is under the jurisdiction of the USACE pursuant to Section 404 of the CWA. • The habitat is under the jurisdiction of the CDFW pursuant to Sections 1600 through 1612 of the FGC.
• The habitat is known or believed to be of high priority for inventory in the California Natural Diversity Database (CNDDB).
• The habitat is considered regionally rare.
• The habitat has undergone a large-scale reduction due to increased encroachment and development.
• The habitat supports special status plant and/or wildlife species (defined below). • The habitat functions as an important corridor for wildlife movement.

The most current version of CDFW’s List of California Sensitive Natural Communities indicates which natural communities are sensitive given the current state of the California classification (CDFW 2021b).

4.1.2 Special Status Species
Species of plants and wildlife are afforded “special status” by federal agencies, state agencies, and/or non-governmental organizations (e.g., USFWS, CDFW, CNPS, and United States Forest Service [USFS]) because of their recognized rarity, potential vulnerability to extinction, and local importance. These species typically have a limited geographic range and/or limited habitat and

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are referred to collectively as “special status” species. Plant and wildlife species are considered “special status” species if they meet any of the following criteria:
• Taxa with official status under ESA, CESA, and/or the Native Plant Protection Act (NPPA). • Taxa proposed for listing under ESA and/or CESA.
• Taxa designated a species of special concern or a state fully protected species by CDFW. • Taxa identified as sensitive, unique or rare, by the USFWS, CDFW, USFS, and/or the Bureau of Land Management (BLM).
• Plants that meet the definition of rare or endangered under CEQA §15380(b) and (d).

Species that may meet the definition of rare or endangered include the following:
− Species considered by CNPS and CDFW to be “rare, threatened or endangered in California” (California Rare Plant Rank [CRPR] 1A, 1B and 2; CNPS 2021). A majority of the CRPR 3 and CRPR 4 plant species generally do not qualify for protection under CESA and NPPA.
− Species that may warrant consideration on the basis of local significance or recent biological information.
− Some species included on the CNDDB Special Vascular Plants, Bryophytes, and Lichens List (CDFW 2021c).
• Considered a locally significant species, that is, a species that is not rare from a statewide perspective but is rare or uncommon in a local context such as within a county or region (CEQA §15125 (c)) or is so designated in local or regional plans, policies, or ordinances.

Examples include a species at the outer limits of its known range or a species occurring on an uncommon soil type.

Available literature and databases were reviewed regarding sensitive habitats and special status species. Special status species that have the potential to occur within the immediate region of the Project Footprint were identified. Several agencies, including the USFWS, CDFW, and CNPS publish lists of particular taxa (species and subspecies) and the associated level of protection or concern associated with each. Reviewed and consulted literature and databases focused on the Project Footprint and included the following sources listed below:
• The CNDDB, a CDFW species account database that inventories status and locations of rare plants and wildlife in California, was used to identify any sensitive plant communities and special status species that may exist within a two-mile radius of the Project Footprint (CDFW 2021a).

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• Online CNPS Inventory of Rare and Endangered Plants of California (CNPS 2021). A search for the USGS 7.5-Minute San Jacinto and Lakeview Quadrangles provided information regarding the distribution and habitats of special status vascular plants in the vicinity of the Project.
• A map of USFWS critical habitat to determine species with critical habitat mapped in the general vicinity of the Project (USFWS 2021a).
• Pertinent maps, scientific literature, websites, and regional flora and fauna field guides.

The literature review provided a baseline from which to inventory the biological resources potentially occurring within the Project Footprint, as well as the surrounding area. Although the inventory list of special status wildlife species was not exhaustive of all species that might be of concern for the property, it provided a wide range of species that are representative of the wildland habitats in the area. Species occurrence and distribution information is often based on documented occurrences where opportunistic surveys have taken place; therefore, a lack of records does not necessarily indicate that a given species is absent from the Project Footprint.

4.1.3 Jurisdictional Waters
The following sources were reviewed to determine the potential presence or absence of jurisdictional streams/drainages, wetlands, lakes, and their location within the watersheds associated with the Project Footprint, and other features that might contribute to federal or state jurisdictional authority located within watersheds associated with the Project Footprint:
• National Wetlands Inventory (NWI) maps (USFWS 2021b). The NWI database indicates potential wetland areas based on changes in vegetation patterns as observed from satellite imagery. This database is used as a preliminary indicator of wetland habitats because the satellite data is not precise;
• USGS National Hydrography Dataset (NHD). Provides the locations of “blue-line” streams as mapped on 7.5-Minute Topographic Map coverage; • Aerial Imagery;
• USGS 7.5-Minute Topographic Maps; and
• Natural Resource Conservation Service (NRCS) Soil Survey.

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4.2 Field Methodology

4.2.1 Vegetation Communities and Plants
A general biological survey was conducted within the Project Footprint on October 29, 2021, by VCS biologists Molly Burdick-Whipp and Sierra Valladares. The biologists conducted an updated biological survey on April 6, 2022, within the Project Footprint. On July 26, 2024, another updated biological survey was performed by Sierra Valladares, Vanessa Tucker, and Joel Martinez. The vegetation communities and habitat conditions were inspected to confirm presence and habitat quality of the vegetation found onsite. Where appropriate, descriptions of vegetation communities from the Manual of California Vegetation (MCV) second edition (Sawyer et al. 2009) were also utilized. Any deviations from standard vegetation classifications were made on best professional judgment when areas did not fit into a specific habitat description provided by the MCV. Vegetation communities were mapped using field observations and utilizing aerial imagery.

A rare plant habitat assessment was conducted on November 5, 2021, and a focused rare plant survey was conducted on April 19, 2022, within the Project Footprint by botanist CJ Fotheringham.

During the habitat assessment and focused rare plant survey, the botanist walked the entirety of the Project Footprint, paying special attention to those areas that could host sensitive vegetation communities or had the potential to provide suitable habitat for special status plant species. Plant species were identified using plant field and taxonomical guides, such as The Jepson Manual:

Vascular Plants of California, second edition (Baldwin et al. 2012). All plant species encountered during the field survey were identified and recorded in field notes.

4.2.2 Wildlife
During the October 2021, April 2022, and July 2024 general biological surveys, biologists analyzed the Project Footprint for habitat areas that could be suitable for special status wildlife species. All wildlife species encountered visually or audibly during the field surveys were identified and recorded in field notes. Signs of wildlife species including wildlife tracks, burrows, nests, scat and remains, were also recorded. Binoculars were used to aid in the identification of observed wildlife and in areas not accessible on foot. Wildlife field guides and photographs were used to assist with identification of wildlife species during the field survey, as necessary. Assessments of presence/absence and potential for occurrence were made based on presence of suitable habitat to support the species, diagnostic signs (burrows, scat, tracks, vocalizations, and nests), known records or occurrence within the area, known distribution and elevation range, and habitat utilization from the relevant literature.

Crotch’s Bumble Bee
The Project site was assessed for presence of suitable habitat for the Crotch’s bumble bee (Bombus crotchii), a California state listed candidate endangered species. This species has low potential to

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occur onsite as the Project site consists of active agriculture, and this species does not inhabit agricultural sites. The Project site lacks suitable nectar resources that would provide suitable habitat for Crotch’s bumble bee; therefore, no focus surveys were required.

Burrowing Owl Survey Methods
Projects within the MSHCP Burrowing Owl Survey Area are subject to the MSHCP burrowing owl (Athene cunicularia) survey requirements. The majority of the Project is within the MSHCP Burrowing Owl Survey Area. The burrowing owl assessment followed the guidelines identified in Burrowing Owl Survey Instructions for the Western Riverside County Multiple Species Habitat Conservation Plan Area (County of Riverside 2006). The survey instructions note the following steps to the MSHCP burrowing owl assessment:
• Step 1: Habitat Assessment
• Step 2: Locating Burrows and Burrowing Owls
o Part A: Focused Burrow Survey
o Part B: Focused Burrowing Owl Surveys (4 separate surveys) The habitat assessment (Step 1) was performed on October 19, 2021, during the general biological survey. The burrowing owl habitat assessment involved walking the Project site and surrounding 500-foot buffer (Study Area) to determine if any areas hosted suitable habitat for burrowing owls.

Soil conditions, topography, vegetative communities, and habitat quality were documented. A majority of the 500-foot buffer area surrounding the Project site was inaccessible due to legal access limitations; these areas were viewed through binoculars. During the habitat assessment it was determined that the Study Area hosted suitable habitat for burrowing owls; therefore Step 2, locating Burrows and Burrowing Owl, was performed in March/April 2022. An additional burrowing owl survey was conducted on July 26, 2024 by VCS biologists to confirm no burrowing owl occupation of the site.

The focused burrow and focused burrowing owl surveys (Step 2, Parts A and B) involved walking through the Study Area depicted on Figure 4. The first survey, which included both the focused burrow survey and first of the focused burrowing owl surveys, included the entire Study Area.

The remaining three focused burrowing owl surveys were conducted within the areas where suitable habitat and burrows were identified during the first focused survey. The field methodology employed for the focused burrow and focused burrowing owl surveys was essentially the same. The pedestrian survey transects were spaced an appropriate distance apart to allow 100 percent visual coverage of the ground surface (approximately 10 to 15 meters [30 to 50 feet]; adjusted for specific field conditions including vegetation and topography). The biologists paid special attention to those habitat areas that appeared to provide suitable habitat for BUOW.

Soil conditions, topography, vegetative communities, and habitat quality were documented.

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All encountered burrows or structure entrances were checked for the presence of BUOWs, molted feathers, cast pellets, prey remains, eggshell fragments, tracks, or excrement at or near a burrow entrance. Natural or man‐made structures and debris piles that could support BUOWs were also surveyed. All burrows were monitored at a short distance from the entrance, and at a location that would not interfere with owl behavior. All the burrow locations were recorded using GPS technology. The surveys were not conducted during rain, high winds (> 20 miles per hour), dense fog, or temperatures above 90-degree Fahrenheit (°F).

The methods used to detect and identify BUOW included observation of key signs identified by the California Burrowing Owl Consortium (CBOC) such as sight, scat, tracks, burrows, nests, and calls. All wildlife species encountered visually or audibly during the field survey were identified and recorded in field notes. Binoculars were used to aid in the identification of observed wildlife.

Photographs were taken to document existing conditions within the Study Area (Appendix A; Site Photographs).

Table 1. Survey Data for BUOW Focused Surveys

Survey
No.

Survey Date Time
Temperature
High and Low
(Fahrenheit)
Conditions Personnel
Burrowing
Owl
Detected
1 March 10, 2022 0600 – 1045 49 - 59
Mostly
cloudy, 0-3
mph wind

MBW, SV,
NM
No
2 March 23, 2022 0810 – 1030 60 - 74
Clear skies,
sunny, 3-7
mph wind

MBW, SV,
NM
No
3 April 6, 2022
0810 – 1030
(Project site)
1030 – 1115
(500’ buffer)
61 - 83
Clear skies,
sunny, no
wind

MBW, SV,
NM
No
4 April 13, 2022
0735 – 1020
(Project site)
1020 – 1120
(500’ buffer)
44 - 60
Clear skies,
sunny, no
wind

MBW, SV,
NM
No
5 July 26, 2024 0500 – 710 72 – 75 Clear skies,
1mph wind SV, VT, JM No
MBW: Molly Burdick-Whipp, SV: Sierra Valladares, NM: Nathalie Munoz, VT: Vanessa Tucker, JM: Joel Martinez

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The surveys were conducted in compliance with MSHCP protocol’s suggested time frame of 1 hour before sunrise and two hours after sunrise and were conducted during weather conditions that were conducive for observing burrowing owls outside of their burrows (not during rain, high winds or hot temperatures as required by the instructions). Additionally, the four focused surveys were conducted such that the areas where potential BUOW burrows were observed (i.e., suitably sized burrows or cavities) were surveyed earliest in the day to provide for the highest probability of BUOW observation, if present.

4.2.3 Jurisdictional Waters
During the October 2021 and April 2022 general biological surveys, VCS biologists assessed the presence or absence of potential jurisdictional streams/drainages on the Project site. During the field survey, the Project site was assessed for jurisdictional wetland and non-wetland Waters of the United States (WOUS). To determine the presence of a wetland, three indicators are required:
(1) hydrophytic vegetation, (2) hydric soils, and (3) wetland hydrology. The RWQCB has exceptions to this methodology in situations where a site has soils and hydrology, but no vegetation is present; these areas may be considered wetlands by the RWQCB. The methodology published in the United States Army Corps of Engineers 1987 Wetland Delineation Manual and the Arid West Supplement sets the standards for meeting each of the three indicators, which normally require that 50 percent or more dominant plant species typical of a wetland, soils exhibiting characteristics of saturation, and hydrological indicators be present. Jurisdictional non-wetland WOUS are typically determined through the observation of an Ordinary High Water Mark (OHWM), which is defined as the “line on the shore established by the fluctuation of water and indicated by physical characteristics such as a clear, natural line impressed on the bank, shelving, changes in the character of soil, destruction of terrestrial vegetation, the presence of litter and debris, or other appropriate means that consider the characteristics of the surrounding areas.” Projects with impacts to Waters of the United States are regulated under Sections 401 and 404 of the Clean Water Act.

On June 22, 2020, a revised Navigable Waters Protection Rule regarding jurisdictional WOUS went into effect. The revised rule stated that Waters of the United States do not include ephemeral features that flow only in direct response to precipitation, including ephemeral streams, swales, gullies, rills, and pools. Consistent with the U.S. District Court for the District of Arizona’s August 30, 2021, order vacating and remanding the Navigable Waters Protection Rule, the regulatory agencies have halted implementation of the Navigable Waters Protection Rule and are interpreting Waters of the United States consistent with the pre-2015 regulatory regime until further notice.

The following guidance documents were utilized in making this determination:
• Field Guide to OHWM Determinations in the Arid West (August 2008);

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• Updated OHWM Datasheet for the Field Guide to OHWM Determinations in the Arid West (July 2010); and
• Ordinary High Flows and the Stage‐Discharge Relationship in the Arid West Region (2011).

The CDFW and the RWQCB take jurisdiction over Waters of the State (WOS) and Riparian/Riverine resources (California Fish and Game Code §§1600 et seq.; California Code of Regulations, Title 14, §720). Section 1602 of the FGC applies to natural rivers, streams, and lakes:
“An entity may not substantially divert or obstruct the natural flow of, or substantially change or use any material from the bed, channel, or bank of, any river, stream, or lake, or deposit or dispose of debris, waste, or other material containing crumbled, flaked, or ground pavement where it may pass into any river, stream, or lake.” The Project Footprint was assessed for jurisdictional WOS during the field survey using guidance from Section 1600 of the FGC and Brady and Vyverberg (2013), which defines a stream as “a body of water that flows perennially or episodically and that is defined by the area in which water currently flows, or has flowed, over a given course during the historic hydrologic course regime, and where the width of its course can reasonably be identified by physical or biological indicators.” CDFW regulates wetland areas only to the extent that those wetlands are part of a stream, river, or lake as defined by the CDFW.

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5.0 RESULTS

5.1 Vegetation

5.1.1 Vegetation Communities/Land Cover
Vegetation/land cover mapping and acreages for each vegetation community and land type within the Project Footprint can be found in Table 2 and are depicted on Figure 5. The majority of the vegetation within the Project Footprint is characterized by maintained open fields comprised of disturbed annual grassland cover vegetated with a variety of non-native and early successional weedy plant species. Vegetation management activities (mowing and tree/shrub removal) had occurred within the entire Project site prior to the October 2021 site visit, with the exception of the southeastern corner, which contained agricultural crop cover (alfalfa [Medicago sativa]).

Tilling occurred prior to the March/April 2022 surveys in portions of the site. During the July 26, 2024 survey, the majority of the site contained agricultural crop cover (watermelon [Citrullus lanatus]). The site conditions likely change frequently between being disced and covered with nonnative vegetation forbs and being actively used for agriculture. Due to the frequent changes in site conditions, the impact acreages for Agricultural Crops and Herbaceous Non-Native Forbs and Grasses were not updated.

Common non-native plant species observed during the surveys included red brome (Bromus madritensis) stinknet (Oncosiphon piluliferum), short-pod mustard (Hirschfeldia incana), and Russian thistle (Salsola tragus). Common native species observed included fiddleneck (Amsinckia menziesii), mitra (Stephanomeria exigua ssp. exigua), and common sunflower (Helianthus annuus).

Representative photographs of the Project site are included as Appendix A.

Table 2. Vegetation Communities/Land Cover Observed
Vegetation Community/Land Cover Type
Project
Footprint
(acres)
Agricultural Crops 4.30*
Disturbed / Developed 2.63
Herbaceous Non-Native Forbs and Grasses 89.11*
Tamarisk Thickets 0.31
Total 96.35
*During the 2024 survey, the majority of the site consisted of Agricultural Crops and a smaller portion of the site consisted of Herbaceous Non-Native Forbs and Grasses. However, this does not affect the significance of impacts, so acreages were not changed.

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5.1.1.1 Agricultural Crops
Approximately 4.30 acres of agricultural crop land cover was mapped within the southeastern portion of the Project Footprint in 2022. This land cover type during the 2021 and 2022 surveys was comprised of cultivated alfalfa. In 2024, it is comprised of cultivated watermelon and extends across the majority of the Project Footprint that was previously mapped as Herbaceous NonNative Forbs and Grasses.

5.1.1.2 Disturbed / Developed
Approximately 2.63 acres of the land within the Project Footprint is characterized as Disturbed / Developed, comprised of dirt access roads onsite containing little to no vegetative cover and developed roadway.

5.1.1.3 Herbaceous Non-Native Forbs and Grasses
Approximately 89.11 acres of herbaceous non-native forbs and grasses was mapped within a majority of the Project Footprint. Vegetation in this area appeared to have been mowed during the previous summer season in 2021/2022. During the 2024 survey, areas with this land cover were focused along the dirt road that runs along northeastern boundary and in the northernmost corner of the Project Footprint. Native plant species observed within this area include fiddleneck, sunflower, Jimsonweed (Datura wrightii), salt heliotrope (Heliotropium curassavicum), and telegraph weed (Heterotheca grandiflora). Non-native plant species observed within this area include red brome, short-pod mustard, stinknet (Oncosiphon piluliferum), nettle leaf goosefoot (Chenopodium murale), and prickly lettuce (Lactuca serriola).

5.1.1.4 Tamarisk Thickets
Approximately 0.31 acres of tamarisk thickets was mapped within the northern corner of the Project footprint. Cut stumps of non-native tamarisk (Tamarix ramosissima) and native Goodding’s black willow (Salix gooddingii) were observed in this area during the 2021 and 2022 general biological surveys. During the 2024 survey, five tamarisk trees were observed along with one black willow tree. Using aerial imagery and the Google street view feature, it appears that this area primarily contained tamarisk trees, with Gooding’s black willow present to a much lesser extent.

Herbaceous grasses and forbs present within this area were consistent with the rest of the site (e.g., red brome, fiddleneck, sunflower, and Russian thistle).

5.1.1.5 Special Status Vegetation Communities
The Project Footprint does not support any sensitive vegetation communities. The Goodding’s Willow – Red Willow Riparian Woodland and Forest vegetation community located offsite and

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adjacent to the Project will be avoided by Project activities and is considered a sensitive community by CDFW (S3).

5.1.2 Plants
A total of 33 plant species were observed within the Project site during the November 2021 and April 2022 botanical surveys and the July 2024 general biological update survey and are listed in Appendix B.

5.1.2.1 Sensitive Plant Species with Potential to Occur Sensitive plant species include federally, or state listed threatened or endangered species and those species listed on CNPS’s rare and endangered plant inventory. Species with the potential to occur onsite were analyzed based on distribution, habitat requirements, and existing site conditions, and are listed in Appendix C.

At the time of the November 2021 botanical habitat assessment, the northern corner of the property had been recently disturbed by tree/shrub removal and several facultative wetland species were identifiable in this area. Based on these factors and nearby occurrences, there was concern that there could be wetland habitat present in the northern corner of the site that could provide suitable habitat to sensitive plant species. The April 2022 focused rare plant survey found no evidence of wetland habitat following winter rains when such an occurrence would have been evident. No special status species were found to occur and no more common species that could be confused with them were found. Special status plant species are not anticipated to occur within the Project Footprint.

5.1.3 Soils
The U.S. Department of Agriculture Natural Resources Conservation service (NRCS 2021) identifies ten (10) soil types present within the Project Footprint (Figure 6; Soils Map).

Soil types on the Project Footprint generally consist of Grangeville loamy fine sand and sandy loam, Dello loamy fine sand, and Traver loamy fine sand and sandy loam. See below for a complete list of soil types identified within the site.
• Grangeville Series: This series consists of very deep, somewhat poorly drained soils that formed in moderate coarse textured alluvium dominantly from granitic rock sources.

Grangeville soils are on alluvial fans and floodplains. Some areas are saline and saline-sodic affected.
• GoB - Grangeville loamy fine sand, drained, 0 to 5 percent slopes • GpB - Grangeville sandy loam, drained, saline-alkali, 0 to 5 percent slopes

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• GrB - Grangeville sandy loam, sandy substratum, drained, 0 to 5 percent slopes • GsB - Grangeville sandy loam, sandy substratum, drained, saline-alkali, 0 to 5 percent slopes
• GuB - Grangeville fine sandy loam, poorly drained, saline-alkali, 0 to 5 percent slopes
• GvB - Grangeville fine sandy loam, saline-alkali, 0 to 5 percent slopes • Dello: This series consist of very deep, somewhat poorly drained soils that formed in alluvium from granitic rock sources. In some areas a water table is more than 6 feet from the surface because of flood control structures and/or installed drains. The frequency of flooding is rare or occasional.
• DrA – Dello loamy fine sand, gravelly substratum, 0 to 2 percent slopes • Traver Series: The Traver series is a member of a coarse-loamy, mixed, thermic family of Natric Haploxeralfs. The alluvium is from granitic bedrock. The soils are variable in content of salts and alkali but usually contain moderate to strong amounts. Moderately well to somewhat poorly drained, with moderate to slow permeability and slow runoff. • Tr2 - Traver loamy fine sand, saline-alkali, eroded
• Tt2 - Traver fine sandy loam, strongly saline-alkali, eroded • Water: A very small area within the southwestern corner of the Project site was mapped by the NRCS as Water, however, there was no water or indications of ponding observed during the October 2021 or April 2022 general biological surveys.

5.2 Wildlife
A total of 28 wildlife or signs thereof were observed during the 2021/2022 general biological surveys and focused BUOW surveys.

Common birds observed include American crow (Corvus brachyrhynchos), black phoebe (Sayornis nigricans), mourning dove (Zenaida macroura), and savannah sparrow (Passerculus sandwichensis). Raptors observed include red-tailed hawk (Buteo jamaicensis) and American kestrel (Falco sparverius).

The wildlife species or signs thereof observed during the general biological survey are listed in Appendix B.

5.2.1 Sensitive Wildlife Species with Potential to Occur Sensitive wildlife species observed within the Study Area during the biological surveys include:

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• California horned lark (Eremophila alpestris actia), a CDFW Watch List species (observed onsite)
• least Bell’s vireo, a federally listed endangered species and a State listed threatened species (observed offsite, within 500-foot survey buffer) • northern harrier (Circus hudsonius), a CDFW Species of Special Concern (fly-over) • yellow warbler, a CDFW Species of Special Concern and USFWS Bird of Conservation Concern (observed offsite, within 500-foot survey buffer) Sensitive wildlife species with low-moderate or moderate potential to occur within or adjacent to the Project Footprint but not observed during the biological surveys include:
• burrowing owl, a CDFW Species of Special Concern, USFWS Bird of Conservation Concern and recently classified CESA candidate endangered species • ferruginous hawk (Buteo regalis), a CDFW Watch List species and USFWS Bird of Conservation Concern
• grasshopper sparrow (Ammodramus savannarum), a CDFW Species of Special Concern • Lincoln’s sparrow (Melospiza lincolnii), an MSHCP Group 1 species • loggerhead shrike (Lanius ludovicianus), a CDFW Species of Special Concern and USFWS Bird of Conservation Concern
• southwestern willow flycatcher, a federally and State listed endangered species • western yellow bat (Lasiurus xanthinus), a CDFW Species of Special Concern and Western Bat Working Group (WBWG) High Priority species
A complete list of sensitive wildlife species analyzed with potential to occur within or adjacent to the Project Footprint are included in Appendix C. The sensitive species noted above are described in further detail below.

Burrowing Owl
The burrowing owl is a small, tan, ground‐dwelling owl that occupies and nests in underground burrows. The species is associated with grasslands and other arid open terrain throughout much of the western United States. Burrowing owls are opportunistic in their selection of burrows, typically utilizing the burrows of small mammals, drainpipes, culverts, and other suitable cavities at or below ground level. In California, the species often occurs in association with colonies of the California ground squirrel (Otospermophilus beecheyi), where it makes use of the squirrel’s burrows. A burrow can be up to 10 feet in length with an enlarged terminal nesting chamber. The entrance of the burrow is often adorned with animal dung, feathers, debris, and other small objects. The species is active both at day and at night and may be seen perching conspicuously on fence posts or standing at the entrance of their burrows.

Due to the characteristic fossorial habits of burrowing owls, burrows are a critical component of their habitat. In southern California, burrowing owls are not only found in undisturbed natural

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areas, but also fallow agricultural fields, margins of active agricultural areas, berms to flood control and creek channels, livestock farms, airports, and vacant lots. Declines in burrowing owl populations are attributed to loss and degradation of habitat, to ongoing residential and commercial development, and to rodent control programs.

No burrowing owls or active signs thereof were observed during the 2022 focused surveys within the Study Area nor were they observed during the July 26, 2024 survey. There have been no previous burrowing owl observations recorded onsite. Suitable burrows and burrow surrogates were observed within the Study Area during the surveys. The burrows/burrow surrogates depicted on Figure 4, within the Study Area, are considered potentially suitable for burrowing owls. The site provides suitable grassland habitat for foraging, although the site generally lacks suitable perches for owls.

California Horned Lark
Horned larks are widespread songbirds of fields, deserts, and tundra, where they forage for seeds and insects, and sing a high, tinkling song. They favor bare, dry ground and areas of short, sparse vegetation and avoid places where grasses grow more than a couple of inches high. The nest site is selected on bare ground. This species was observed onsite during the biological surveys; the Project site provides suitable foraging and nesting habitat for the species.

Ferruginous Hawk
Ferruginous hawks are open-country birds that breed in grasslands, sagebrush country, saltbushgreasewood shrublands, and edges of pinyon-juniper forests at low to moderate elevations. Their breeding habitat includes features such as cliffs, outcrops, and tree groves for nesting. West of the Rockies, ferruginous hawks spend the winter in grasslands or deserts with abundant rabbits, pocket gophers, or prairie dogs. This species is present in southern California in the winter. This species was not observed during the October 2021 or April 2022 general biological surveys. This species has a moderate potential to occur within the Project site for foraging in the winter, however the site lacks suitable nesting habitat for the species.

Grasshopper Sparrow
The grasshopper sparrow is a stubby-tailed and bull-necked songbird found in grasslands, prairies, hayfields, and open pastures with little to no scrub cover and often with some bare ground. When not singing its quiet, insect like song from atop a stalk in a weedy pasture, it disappears into the grasses where it usually runs along the ground rather than flies. This species was not observed during the October 2021 or April 2022 general biological surveys. The grasshopper sparrow has a moderate potential to occur within the Project site for foraging, however the site lacks suitable nesting habitat for the species.

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Least Bell’s Vireo
The least Bell's vireo is a small, olive-gray, migratory songbird that primarily occupies riverine riparian habitats that typically feature dense cover within 1-2 meters of the ground and a dense, stratified canopy. This species was heard calling within offsite willow habitat west of the Project site during the April 2022 general biological survey and during the July 26, 2024 survey. The Project site lacks suitable nesting and foraging habitat for this species.

Lincoln’s Sparrow
Generally a skulker in dense low cover, this sparrow often goes unnoticed during migration and winter. Even where they are common, Lincoln's sparrows tend to be solitary, not joining flocks.

The Lincoln's sparrow occurs within the western Riverside County area as a migrant and winter visitor throughout the lowland areas and is fairly common to locally common in overgrown fields and brush thickets and channels. This species was not observed during the October 2021 or April 2022 general biological surveys but has a moderate potential to occur onsite during the nonbreeding season. The Project site is outside the known breeding range for the species.

Loggerhead Shrike
The loggerhead shrike is a songbird with a raptor’s habits. A denizen of grasslands and other open habitats throughout much of North America, this masked black, white, and gray predator hunts from utility poles, fence posts and other conspicuous perches, preying on insects, birds, lizards, and small mammals. This species was not observed during the October 2021 or April 2022 general biological surveys. There is moderate potential for this species to occur onsite as suitable foraging habitat and prey are available, however, the site lacks suitable nesting habitat for this species.

Northern Harrier
These unusual raptors have a broad distribution across North America within wide-open habitats ranging from Arctic tundra to prairie grasslands to fields and marshes. Breeding Northern harriers are most common in large, undisturbed tracts of wetlands and grasslands with low, thick vegetation; their nests are concealed on the ground in grasses or wetland vegetation. This species was observed flying over the Project site during the April 2022 general biological survey. The Project site offers suitable foraging habitat but lacks suitable nesting habitat for the species.

Southwestern Willow Flycatcher
Willow flycatchers, as their name implies, occupy areas with willows or other shrubs near standing or running water. The species is an insectivore and forages within and above dense riparian vegetation. The southwestern willow flycatcher is present in breeding territories by mid-May, including southern California. It builds nests and lays eggs in late May and early June and fledges

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young in early to mid-July. Between August and September, the southwestern willow flycatcher migrates to wintering grounds in Mexico, Central America, and possibly northern South America.

It breeds in relatively dense riparian tree and shrub communities associated with rivers, swamps, and other wetlands including lakes and reservoirs. Habitat patches must be at least 0.25 acres in size and at least 30 feet wide. Following modern changes to riparian communities, this subspecies still nests in native vegetation, but also uses thickets dominated by non-native tamarisk and Russian olive, or in mixed native and non-native stands. The Project site lacks suitable nesting and foraging habitat for this species, but the offsite willow habitat located adjacent to the Project site could support nesting for this species. This species was not observed during the October 2021 or April 2022 general biological surveys. The nearest recorded occurrence in CNDDB is located 8 miles to the north.

Western Yellow Bat
The western yellow bat is a year-round resident of southern California, found below 2000 feet in or near foothill or desert riparian habitats. The species roosts in trees, including palm trees, in and near palm oases and riparian habitats. Bat roosts were not incidentally observed during the October 2021 or April 2022 general biological surveys. The Project site lacks suitable roosting habitat, but the offsite willow habitat adjacent to the site could support roosting for this species.

Yellow Warbler
This bright yellow warbler spends the breeding season in thickets and other disturbed or regrowing habitats, particularly along streams and wetlands. The species nests in the vertical fork of a bush or small tree such as willow. This species was observed within the offsite willow habitat located near the southwest corner of the site during the April 2022 general biological survey. The Project site lacks suitable foraging and nesting habitat for this species.

5.2.2 Critical Habitat
The USFWS’s online service for information regarding Threatened and Endangered Species Final Critical Habitat designation within California was reviewed to determine if the Project site occurs within any species designated Critical Habitat. Critical Habitat for San Bernardino Merriam’s kangaroo rat (Dipodomys merriami parvus) occurs approximately 1.2 miles north-northeast of the Project site (Figure 7).

5.2.3 Wildlife Movement
Wildlife corridors link together areas of suitable habitat that are otherwise separated by rugged terrain, changes in vegetation, or human disturbance. The fragmentation of open space areas by urbanization creates isolated “islands” of wildlife habitat. Corridors effectively act as links between

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different populations of a species. An increase in a population’s genetic variability is generally associated with an increase in a population’s health.

Corridors mitigate the effects of habitat fragmentation by:
• Allowing wildlife to move between remaining habitats, which allows depleted populations to be replenished and promotes genetic diversity;
• Providing escape routes from fire, predators, and human disturbances, thus reducing the risk that catastrophic events (such as fires or disease) will result in population or local species extinction; and
• Serving as travel routes for individual wildlife species as they move within their home ranges in search of food, water, mates, and other needs (Fahrig and Merriam 1985, Simberloff and Cox 1987, Harris and Gallagher 1989).

Wildlife movement activities usually fall into one of three movement categories:
• Dispersal (e.g., juvenile animals from natal areas, individuals extending range distributions);
• Seasonal migration; and
• Movements related to home range activities (foraging for food or water, defending territories, searching for mates, breeding areas, or cover).

The Project site is located adjacent to both residential development and open space parcels, while the site itself is comprised of fields dominated by non-native grasses and forbs. Because the site has open fields, the Project site plays a minor role in local wildlife dispersal and foraging. Common wildlife species including coyotes, skunks, opossums, and raccoons may travel through the site and neighboring developed or open areas, but the site does not provide connectivity between large areas of open space on a local or regional scale. The site is not within a significant regional wildlife movement corridor and is not considered to play a significant role in regional wildlife movement.

5.2.4 Avian Nesting and Bat Roosts
There is potential for avian nesting within the Project site. The open fields provide suitable habitat for ground-nesting avian species. The adjacent willow habitat located outside the Project site could support avian nesting and bat roosting. The biologists did not observe signs of nests, nesting activity or bat roosting within the Project site during the October 2021, April 2022, or July 2024 general biological surveys.

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5.3 Jurisdictional Waters

5.3.1 National Wetland Inventory
No aquatic features are mapped within the Project Footprint on the USFWS’s National Wetland Inventory (USFWS [2021b]).

5.3.2 Hydrology
The Project lies within the San Jacinto watershed. The closest significant aquatic features to the site include the San Jacinto River, located approximately 1.3 miles to the north-northwest, and the San Jacinto Reservoir, located immediately south of the Project site. The San Jacinto Reservoir is operated by the Eastern Municipal Water District, which also operates the San Jacinto Valley Regional Water Reclamation Facility located west of the site.

5.3.3 Jurisdictional Waters
There are no streambed or drainage features containing waters of the United States or waters of the State on the Project Footprint. There is a drainage feature located outside of the Project Footprint, adjacent to the southern boundary of the site. This drainage feature is dominated by mature Goodding’s black willow along with arrowweed (Pluchea sericea) and mulefat (Baccharis salicifolia). The riparian vegetation associated with this drainage feature does not encroach the Project Footprint.

An analysis of historic aerial imagery shows the northernmost corner of the site being developed as an agricultural basin prior to 2005. Aerial imagery after 2005 does not show any basins or constructed ponds in this area. The October 29, 2021, site visit was conducted four (4) days following a significant rainfall event. No ponding or soil saturation was observed within the Project Footprint, including the northern corner, during the October 29 survey even though offsite areas exhibited ponding from the storm event. During the July 2024 survey, tamarisk trees and a black willow tree were observed to have grown within the northernmost corner of the site since the last survey in 2022; however, no other signs of ponding or water flow were observed. Broken irrigation lines for the crops have caused ponding along an access road in the southwestern corner of the site; however, this area has previously shown no evidence of ponding.

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6.0 PROJECT IMPACTS

6.1 Vegetation

6.1.1 Potential Impacts to Vegetation Communities
Potential impacts to vegetation communities/land cover types due to implementation of the Project includes the majority of the Project Footprint, totaling approximately 96 acres, which includes the habitats shown below in Table 3.

Table 3. Potential Impacts to Vegetation Communities within the Project Footprint Vegetation Community/Land Cover Type
Project
Footprint
(acres)
Agricultural Crops 4.30*
Disturbed / Developed 2.63
Herbaceous Non-Native Forbs and Grasses 89.11*
Tamarisk Thickets 0.31
Total 96.35
*During the 2024 survey, the majority of the site consisted of Agricultural Crops and a smaller portion of the site consisted of Herbaceous Non-Native Forbs and Grasses. However, this does not affect the significance of impacts, so acreages were not changed.

Direct impacts to agricultural crops, disturbed / developed, and herbaceous non-native forbs and grasses vegetation/land cover types are considered less than significant because these habitats/land covers are comprised mostly of non-native vegetation, are common in the surrounding vicinity, and do not represent CNDDB or CDFW sensitive plant communities.

Direct impacts to 0.31 acres of tamarisk thickets are considered less than significant because they are common in the surrounding vicinity and do not represent CNDDB or CDFW sensitive plant communities.

With the inclusion of standard BMPs as noted in Section 9.0, Best Management Practices, which include biological monitoring and clearly delineating the limits of disturbance, potential impacts to sensitive habitat would be considered less than significant.

6.1.2 Potential Impacts to Special Status Plants
Special status plant species are not anticipated to occur within the Project Footprint. Thus, no impacts will occur to special status plant species.

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6.2 Wildlife

6.2.1 Potential Impacts to Special Status Wildlife
Burrowing owl are known to use both fallow and active agricultural fields for foraging and nesting.

The species has a moderate potential to occur as suitable burrows are present and multiple occurrences of this species have been documented within two miles of the site. Potential impacts to burrowing owl are addressed through a 30-day pre-construction burrowing owl survey as described in Section 10.0.

The grasshopper sparrow and horned lark have a moderate potential to occur on the Project site for foraging and nesting. Potential impacts to nests located on the Project site are addressed through a pre-construction nesting bird survey as described in Section 10.0. The loss of approximately 96 acres of foraging habitat for these two species would not decrease populations below self-sustaining levels given the availability of habitat remaining in the region. Therefore, impacts would be less than significant per CEQA and no mitigation would be required.

The ferruginous hawk, loggerhead shrike, and Lincoln’s sparrow have moderate potential to occur on the Project Footprint for foraging. A northern harrier was observed flying over the site during the April 2022 general biological survey. The Project Footprint lacks suitable nesting habitat for these four species. The loss of approximately 96 acres of foraging habitat for these species would not decrease populations below self-sustaining levels given the availability of habitat remaining in the region. Therefore, impacts would be less than significant per CEQA and no mitigation would be required. Foraging individuals are expected to move to adjacent habitat during construction activities; therefore, there would be no direct mortality on these species. Potential impacts to nests located near the Project site are addressed through pre-construction nesting bird surveys as described in Section 10.0.

The Project Footprint lacks suitable nesting and foraging habitat for least Bell’s vireo, southwestern willow flycatcher, and yellow warbler. Suitable foraging and nesting habitat for these species occurs offsite within the mature willow habitat located along the southern boundary of the Project site. Yellow warbler and least Bell’s vireo were observed within this offsite riparian habitat during the April 2022 general biological survey. Potential impacts to nesting least Bell’s vireo, southwestern willow flycatcher, and yellow warbler will be addressed through a preconstruction nesting bird survey, as described in Section 10.0.

The Project Footprint lacks suitable roosting habitat for the western yellow bat, however, the species could forage onsite. The willow trees within adjacent (offsite) areas offer suitable roosting habitat. Potential impacts to maternity roosts of the western yellow bat within the adjacent willow habitat are addressed through pre-construction surveys, as discussed in Section 10.0. The loss of approximately 96 acres of foraging habitat onsite for this species would not decrease populations

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below self-sustaining levels given the availability of habitat remaining in the region. Therefore, impacts would be less than significant per CEQA and no mitigation would be required.

The remaining species listed in Appendix C are not expected to occur on the Project Footprint due to the lack of suitable habitat or the site is outside the known elevation range for the species.

Therefore, there would be no impact on these species and no mitigation would be required.

With the inclusion of standard BMPs as noted in Section 9.0, Best Management Practices, and recommendations in Section 10.0, Recommendations, potential impacts to these special status wildlife species would be considered less than significant.

6.2.2 Potential Impacts to Critical Habitat
The Project Footprint does not fall within any USFWS-designated Critical Habitat.

6.2.3 Potential Impacts to Wildlife Movement/Nesting/Bat Roosts Wildlife Movement
As described earlier, the Project site may serve a function in local wildlife dispersal and foraging, however, the site is not within a significant regional wildlife movement corridor and is not considered to play a significant role in regional wildlife movement. Due to the disturbed nature of the site, the loss of foraging habitat and/or effect on local wildlife movement would be less than significant. No long-term or significant effects to wildlife movement are anticipated due to Project implementation.

Nesting Birds
Due to the presence of suitable vegetation onsite, Project construction could result in impacts to nesting birds. Recommended measures include a pre-construction nesting bird survey to avoid impacts and are outlined in Section 10.0, Recommendations, of this report. These measures would ensure potential impacts to nesting birds are less than significant.

Bat Roosting and Foraging Habitat
The potential for bat roosting is low within the Project Footprint, while the existing vegetation onsite may represent suitable foraging habitat; however, this impact on foraging habitat would be less than significant given the availability of habitat remaining in the region. Therefore, no mitigation would be required. The maturewillow trees within adjacent (offsite) areas offer suitable roosting habitat. Potential impacts to maternity roosts located near the Project site are addressed

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Biological Technical Report
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through a pre-construction bat survey as described in Section 10.0. This measure would ensure potential indirect impacts to roosting bats are less than significant.

6.3 Jurisdictional Waters

6.3.1 Potential Impacts to Jurisdictional Waters
No streambed or drainage features containing waters of the United States or waters of the State are present within the Project Footprint. An earthen drainage feature occurs adjacent to the southern boundary of the site containing mature Goodding’s willow habitat. This drainage feature and the associated riparian habitat are located outside of the Project Footprint. Thus, no impacts will occur to jurisdictional waters or jurisdictional riparian habitat.

With the inclusion of standard BMPs as noted in Section 9.0, Best Management Practices, which include clearly delineating the limits of disturbance, potential impacts to jurisdictional resources would be considered less than significant.

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Biological Technical Report
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7.0 MSHCP CONSISTENCY ANALYSIS
The purpose of this section is to provide an analysis of the proposed Project with respect to compliance with biological aspects of the Western Riverside County MSHCP. The following information is provided relating the Project site to geographic areas of the MHSCP that are relevant to reserve assembly and planning. This information will form the basis of a consistency determination for the Project.

Section 6 of the MSHCP states that all projects must be reviewed for compliance with plan policies pertaining to Riparian/Riverine resources, Criteria resources, Narrow Endemic Plant Species, urban/wildlands interface, and additional survey needs as applicable.

7.1 Reserve Assembly Analysis
The Project is located within the San Jacinto Valley Area Plan of the MSHCP within the San Jacinto Habitat Management Unit. The Project site is not located within an MSHCP Criteria Cell or Cell Group. As such, the Project is not subject to the Joint Project Review (JPR) or Habitat Acquisition and Negotiation (HANS) processes.

7.2 Project Area in Relation to MSHCP

7.2.1 Public Quasi-Public Lands
The Project is not located on Public Quasi-Public (PQP) lands. The nearest PQP lands are located within portions of the San Jacinto River, approximately 1.4 miles north and 2 miles east of the Project site. The Project will not directly or indirectly impact PQP lands.

7.2.2 Covered Roads
Lyon Avenue, which occurs directly east of the Project site, is identified as a Covered Road on the Western Riverside County Regional Conservation Authority’s MSHCP Information Map. Lyon Road improvements are anticipated for the western half of the road along the frontage of the Project.

The impact acreage will not exceed the covered road acreage for this road.

7.2.3 Urban/Wildlands Interface (Section 6.1.4)
The MSHCP recognizes that future development in proximity to existing or proposed MSHCP Conservation Areas might result in indirect edge effect conditions that will adversely affect biological resources within the MSHCP Conservation Area. The MSHCP provides guidelines to address the indirect effects of urban/wildlands interfaces, as outlined in Section 6.1.4, including conditions relating to drainage, toxics, lighting, noise, invasive plant species, barriers, and grading/land development.

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The proposed Project is not located within or in proximity to a Conservation Area, which include PQP lands. Thus, guidelines to address the indirect effects of urban/wildlands interfaces as presented in Section 6.1.4 are not relevant to the Project.

7.3 Protection of Species Associated with Riparian/Riverine Areas and Vernal Pools (Section 6.1.2)
The proposed Project site was assessed for MSHCP Section 6.1.2 resources, including riparian/riverine resources, vernal pools, fairy shrimp, and riparian birds.

7.3.1 Riparian/Riverine

7.3.1.1 Methods
Section 6.1.2 of the MSHCP states that “riparian/riverine resources are lands which contain habitat dominated by trees, shrubs, persistent emergent [wetland plant species], or emergent mosses and lichens, which occur close to or which depend upon moisture from a nearby freshwater source; or areas with freshwater after flow during all or a portion of the year.” To determine the areas where “Riparian/Riverine Areas” are present, the delineators conducted site visits to walk the entire Project site and reviewed historical aerial imagery. Based on the collective results of these investigations, areas that showed evidence of riparian/riverine resources based off the above definitions were determined to be subject to the MSHCP and were mapped.

VCS biologists performed a jurisdictional delineation and vegetation mapping onsite in October 2021 and April 2022. All areas of the Project Footprint were evaluated for the presence of riparian/riverine areas, including wetlands. All drainages encountered were also examined for connectivity or lack of connectivity to other hydrologic features. Dominant vegetation within the drainages or adjacent to the drainages were identified and recorded.

7.3.1.2 Existing Conditions and Results
No streambed or drainage features containing MSHCP Riparian/Riverine resources are present within the Project Footprint. An earthen drainage feature occurs adjacent to the southern boundary of the site containing mature Goodding’s willow habitat, which will be avoided by Project activities.

7.3.1.3 Impacts and Recommendations
No direct impacts will occur to MSHCP Riparian/Riverine resources. The inclusion of standard BMPs as noted in Section 9.0, Best Management Practices, which include clearly delineating the limits of disturbance, will reduce the potential for indirect impacts to offsite riparian habitat.

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7.3.2 Vernal Pools and Fairy Shrimp

7.3.2.1 Methods
Section 6.1.2 of the MSHCP states that “Vernal pools are seasonal wetlands that occur in depression areas that have wetland indicators of all three parameters (soils, vegetation and hydrology) during the wetter portion of the growing season but normally lack wetland indicators of hydrology and/or vegetation during the drier portion of the growing season”.

The entire Project Footprint was assessed for potential vernal pool habitat during the October 2021 and April 2022 general biological surveys conducted by VCS. In addition, the following sources were reviewed to aid in the site assessment for vernal pool habitat: National Wetlands Inventory (NWI), current and historic aerial imagery, and NRCS Soil Survey.

7.3.2.2 Existing Conditions and Results
During the biological surveys, no evidence of ponding water, such as visible surface water, cracked soils, or hydric soils were observed. Additionally, no vegetation typical of vernal pools or seasonal depressions was observed. The October 29, 2021, general biological survey was conducted four (4) days following a significant rainfall event. The biologists took note of road ruts located along Lyon Avenue (outside of the Project Footprint) that still contained water following the previous rain event. Based on the lack of typical features that could collect water, lack of ponding water evidence, and the lack of vegetation typical of vernal pools or seasonal depressions, suitable conditions for vernal pools, fairy shrimp, and other sensitive species associated with vernal pools are considered absent from the Project Footprint.

7.3.3 Riparian Birds
The MSHCP lists five bird species for protection based off association with riparian/riverine and vernal pool habitats. These species include bald eagle (Haliaeetus leucocephalus), least Bell’s vireo, peregrine falcon (Falco peregrinus), southwestern willow flycatcher, and western yellow-billed cuckoo (Coccyzus americanus occidentalis).

7.3.3.1 Methods
During the October 2021 and April 2022 biological surveys, biologists analyzed the Project site for habitat areas that could be suitable for special status wildlife species, including any riparian habitats that could provide suitable nesting or foraging habitat for Section 6.1.2 wildlife species.

Prior to the surveys, a literature and database review was performed, as described in Section 4.1, to identify any special status wildlife species that have the potential to occur within the immediate region of the Project site.

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7.3.3.2 Existing Conditions and Results
No riparian or open water habitats occur within the Project Footprint. Thus, the site lacks suitable habitat for least Bell’s vireo, southwestern willow flycatcher, western yellow-billed cuckoo, and bald eagle. The few tamarisk trees and one black willow tree in the northernmost corner of the site are not considered suitable nesting or foraging habitat for least Bell’s vireo, southwestern willow flycatcher, or western yellow-billed cuckoo.

No suitable nesting habitat occurs on the Project Footprint for peregrine falcon. The San Jacinto Reservoir, located just south of the site, may be used by peregrine falcon for foraging during transient movements or for wintering. While the Project site offers a small amount of open space grassland habitat for raptor foraging, no significant bodies of water or other important habitats (e.g., marsh habitat) occur within the Project site and the level of disturbance within and near the site would likely preclude peregrine falcon from utilizing the site for foraging. This species is not anticipated to occur within the Project Footprint.

Suitable habitat for least Bell’s vireo and southwestern willow flycatcher occur within adjacent mature Goodding’s willow habitat along the southern boundary of the site. A least Bell’s vireo individual was heard calling within the willow habitat west of the site in 2022 and in 2024.

The adjacent willow habitat is not extensive enough to support western yellow-billed cuckoo; habitat patches for the species is generally greater than 200 acres in extent (Laymon and Halterman 1989), while this area makes up only approximately 15 acres of riparian habitat.

7.3.3.3 Impacts
Direct impacts to least Bell’s vireo, southwestern willow flycatcher, western yellow-billed cuckoo, peregrine falcon, and bald eagle are not anticipated due to the lack of suitable nesting and foraging habitat for these species within the Project Footprint. Due to the presence of suitable riparian habitat located adjacent to the Project site and direct observations of least Bell’s vireo within offsite habitat, indirect impacts to nesting least Bell’s vireo and southwestern willow flycatcher could occur as a result of Project activities during the breeding season.

7.3.3.4 Recommendations
Potential impacts to nesting least Bell’s vireo and southwestern willow flycatcher will be addressed through a pre-construction nesting bird survey, as described in Section 10.0.

7.4 Protection of Narrow Endemic Plant Species (Section 6.1.3) A majority of the Project site occurs within a Narrow Endemic Plant Survey Area for the following species:
• Munz’s onion (Allium munzii)

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• San Diego ambrosia (Ambrosia pumila)
• Many-stemmed dudleya (Dudleya multicaulis)
• Spreading navarretia (Navarretia fossalis)
• California Orcutt grass (Orcuttia californica)
• Wright’s trichocoronis (Trichoconis wrightii var. wrightii)

7.4.1 Methods
A rare plant habitat assessment was conducted on November 5, 2021, and a focused rare plant survey was conducted on April 19, 2022, within the Project Footprint by botanist CJ Fotheringham.

During the surveys, the botanist walked the entirety of the site, paying special attention to those areas that could host sensitive vegetation communities or had the potential to provide suitable habitat for special status plant species. Plant species were identified using plant field and taxonomical guides, such as The Jepson Manual: Vascular Plants of California, second edition (Baldwin et al. 2012). All plant species encountered during the field survey were identified and recorded in field notes.

7.4.2 Existing Conditions and Results
No Narrow Endemic Plant species were observed within the Project during the November 2021 or April 2022 botanical surveys. Based on the results of the surveys and lack of suitable habitat, Narrow Endemic Plant species are not expected to occur within the Project Footprint.

7.4.3 Impacts and Recommendations
No impacts are expected to occur to Narrow Endemic Plant species; therefore, no mitigation is proposed.

7.5 Additional Survey Needs and Procedures (Section 6.3.2)

7.5.1 Criteria Area Plant Species
The Project does not fall within the mapped survey area for Criteria Area Plant Species.

7.5.2 Amphibians
The Project does not fall within the mapped survey area for amphibian species.

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7.5.3 Burrowing Owl
Projects within the MSHCP Burrowing Owl Survey Area are subject to the MSHCP burrowing owl survey requirements. The majority of the Project is within the MSHCP Burrowing Owl Survey Area (Figure 8).

7.5.3.1 Methods
The burrowing owl assessment followed the guidelines identified in Burrowing Owl Survey Instructions for the Western Riverside County Multiple Species Habitat Conservation Plan Area (County of Riverside 2006). Refer to Section 4.2.2 for a description of the survey methodologies.

7.5.3.2 Existing Conditions and Results
No burrowing owls or active signs thereof were observed during the 2022 focused surveys within the Study Area. There have been no previous burrowing owl observations recorded onsite.

Suitable burrows and burrow surrogates were observed within the Study Area during the surveys.

The burrows/burrow surrogates depicted on Figure 4, within the Study Area, are considered potentially suitable for burrowing owls. The site provides suitable grassland habitat for foraging, although the site generally lacks suitable perches for owls.

7.5.3.3 Impacts and Recommendations
Although burrowing owls were not observed within the Study Area during the 2022 focused surveys, the Project site contains habitat suitable for burrowing owl. Therefore, a pre-construction survey should be conducted not more than 30 days prior to initial ground disturbing activities, including vegetation clearing, grubbing, tree removal, or site watering. If ground-disturbing activities occur, but the site is left undisturbed for more than 30 days, a pre-construction survey will again be necessary to ensure burrowing owl have not colonized the site since it was last disturbed.

7.5.4 Mammals
The proposed Project does not fall within a mapped survey area for mammals.

7.6 Information on Other Species

7.6.1 Delhi Sands Flower Loving Fly
Delhi soil types are not mapped within the proposed Project site, and therefore, no surveys are required for the Delhi sands flower-loving fly.

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7.6.2 Species Not Adequately Conserved
Species listed in Table 9-3 (REQUIREMENTS TO BE MET FOR 28 SPECIES PRIOR TO INCLUDING THOSE SPECIES ON THE LIST OF COVERED SPECIES ADEQUATELY CONSERVED) of the MSHCP were evaluated for potential to occur within the Project site and are included in Appendix C.

Of the species listed in Table 9-3, only two species exhibited at least a moderate potential to occur within the Project site. Grasshopper sparrow has a moderate potential to occur due to the presence of suitable foraging and nesting habitat. Lincoln’s sparrow has a moderate potential to occur due to the presence of suitable foraging habitat, however, the Project site lacks suitable nesting habitat for this species. Lincoln’s sparrow occurs in the region only during the nonbreeding and migratory seasons. The loss of approximately 96 acres of foraging and nesting habitat for grasshopper sparrow and foraging habitat for Lincoln’s sparrow would not decrease populations below self-sustaining levels given the availability of habitat remaining in the region; therefore, no mitigation is proposed. Individuals are expected to move to adjacent habitat during construction activities; therefore, there would be no direct mortality on the species. Potential impacts to nests, including grasshopper sparrow nests, located on the Project site are addressed through a pre-construction nesting bird survey as described in Section 10.0.

The remaining species listed in Table 9-3 are not expected to occur on the Project Footprint due to the lack of suitable habitat or the site is outside the known range for the species.

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8.0 CUMULATIVE IMPACTS
Cumulative impacts are defined as the direct and indirect effects of a proposed project which, when considered alone, would not be deemed a substantial impact, but when considered in addition to the impacts of related projects in the area, would be considered significant. “Related projects” refers to past, present, and reasonably foreseeable probable future projects, which would have similar impacts to the proposed Project. CEQA deems a cumulative impact analysis to be adequate if a list of “related projects” is included in the EIR or the proposed project is consistent with an adopted general, specific, master, or comparable programmatic plan [Section 15130(b)(1)(B)]. CEQA also states that no further cumulative impact analysis is necessary for impacts of a proposed project consistent with an adopted general, specific, master, or comparable programmatic plan [Section 15130(d)].

Although the Project would result in the loss of approximately 96 acres of land comprised mostly of herbaceous non-native forbs/grasses, the MSHCP was developed to address the comprehensive regional planning effort and anticipated growth in the County of Riverside. The proposed Project has been designed and mitigated to remain in compliance with all MSHCP conservation goals and guidelines and therefore will not result in an adverse cumulative impact.

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9.0 BEST MANAGEMENT PRACTICES
The western Riverside MSHCP Volume 1, Appendix C outlines standard BMPs which are intended in part to reduce impacts to plant communities, special status plant and wildlife species, and jurisdictional waters. As the Project is located within the MSHCP boundary, the Project will be required to comply with applicable standard BMPs found in Appendix C of the MSHCP, as appropriate. The following are recommended, which are based on the standard MSHCP BMPs:

1. A condition shall be placed on grading permits requiring a qualified biologist to conduct a training session for project personnel prior to grading. The training shall include a description of the species of concern and its habitats, the general provisions of the Endangered Species Act (Act) and the MSHCP, the need to adhere to the provisions of the Act and the MSHCP, the penalties associated with violating the provisions of the Act, the general measures that are being implemented to conserve the species of concern as they relate to the project, and the access routes to and Project site boundaries within which the project activities must be accomplished.

2. Water pollution and erosion control plans shall be developed and implemented in accordance with RWQCB requirements.

3. The footprint of disturbance shall be minimized to the maximum extent feasible.

Access to sites shall be via pre-existing access routes to the greatest extent possible.

4. The upstream and downstream limits of projects disturbance plus lateral limits of disturbance on either side of the stream shall be clearly defined and marked in the field and reviewed by the biologist prior to initiation of work.

5. Projects should be designed to avoid the placement of equipment and personnel within the stream channel or on sand and gravel bars, banks, and adjacent upland habitats used by target species of concern.

6. Projects that cannot be conducted without placing equipment or personnel in sensitive habitats should be timed to avoid the breeding season of riparian identified in MSHCP Global Species Objective No. 7.

7. When stream flows must be diverted, the diversions shall be conducted using sandbags or other methods requiring minimal instream impacts. Silt fencing of other sediment trapping materials shall be installed at the downstream end of construction activity to minimize the transport of sediments offsite. Settling ponds where sediment is collected shall be cleaned out in a manner that prevents the sediment from reentering the stream. Care shall be exercised when removing silt fences, as feasible, to prevent debris or sediment from returning to the stream.

8. Equipment storage, fueling, and staging areas shall be located on upland sites with minimal risks of direct drainage into riparian areas or other sensitive habitats. These

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designated areas shall be located in such a manner as to prevent any runoff from entering sensitive habitat. Necessary precautions shall be taken to prevent the release of cement or other toxic substances into surface waters. Project related spills of hazardous materials shall be reported to appropriate entities including but not limited to applicable jurisdictional city, USFWS, CDFW, and RWQCB and shall be cleaned up immediately and contaminated soils removed to approved disposal areas.

9. Erodible fill material shall not be deposited into water courses. Brush, loose soils, or other similar debris material shall not be stockpiled within the stream channel or on its banks.

10. The qualified project biologist shall monitor vegetation clearing to ensure that practicable measures are being employed to avoid incidental disturbance of habitat and species of concern outside the project footprint.

11. The removal of native vegetation shall be avoided and minimized to the maximum extent practicable. Temporary impacts shall be returned to pre-existing contours and revegetated with appropriate native species.

12. Exotic species that prey upon or displace target species of concern should be permanently removed from the site to the extent feasible.

13. To avoid attracting predators of the species of concern, the Project site shall be kept as clean of debris as possible. All food related trash items shall be enclosed in sealed containers and regularly removed from the site(s).

14. Construction employees shall strictly limit their activities, vehicles, equipment, and construction materials to the proposed project footprint and designated staging areas and routes of travel. The construction area(s) shall be the minimal area necessary to complete the project and shall be specified in the construction plans. Construction limits will be fenced with orange snow screen. Exclusion fencing should be maintained until the completion of all construction activities. Employees shall be instructed that their activities are restricted to the construction areas.

15. The Permittee shall have the right to access and inspect any sites of approved projects including any restoration/enhancement area for compliance with project approval conditions including these BMPs.

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10.0 RECOMMENDATIONS
The following uniformly applied development policies or standards are recommended, or as otherwise modified by the Lead Agency, to be incorporated into the Project for consistency with the General Plan Action RM-1d, Action RM-1i, and Action RM-1j.

BIO-1: Preconstruction Survey. To maintain compliance with the Migratory Bird Treaty Act (MBTA and California Fish and Game Code Sections 3503, 3503.5, and 3513), prior to the start of ground disturbance or vegetation removal, a pre-construction survey shall be conducted to avoid impacts to avian species.

Removal of any trees, shrubs or any other potential nesting and foraging habitat for avian and/or sensitive avian species shall be conducted outside of the nesting season to the greatest extent practical. Alternatively, a nesting bird survey shall be conducted within three (3) days prior to the start of work if work is to occur during the nesting bird season (January 31 – September 15). The survey results shall be provided to the City’s Planning Department. The Project Applicant shall adhere to the following:

1. Applicant shall designate a biologist (Designated Biologist) experienced in:
identifying local and migratory bird species of special concern; conducting bird surveys using appropriate survey methodology; nesting surveying techniques, recognizing breeding and nesting behaviors, locating nests and breeding territories, and identifying nesting stages and nest success; determining/ establishing appropriate avoidance and minimization measures; and monitoring the efficacy of implemented avoidance and minimization measures.

2. Pre-activity field surveys shall be conducted at the appropriate time of day/night, during appropriate weather conditions, no more than 3 days prior to the initiation of Project activities. Surveys shall encompass all suitable areas including trees, shrubs, bare ground, burrows, cavities, and structures. Survey duration shall take into consideration the size of the Project site; density, and complexity of the habitat; number of survey participants; survey techniques employed; and shall be sufficient to ensure the data collected is complete and accurate.

If nesting birds are not found within the Project site, site preparation and construction activities may begin during the nesting/breeding season. If nesting birds or active nests (including nesting raptors) are identified, then avoidance or minimization measures shall be undertaken in consultation with the City of San Jacinto (and California Department of Fish and Wildlife if the observed species has special status). Measures shall include immediate establishment of an avoidance buffer be implemented as determined by a qualified biologist and approved by the City of San Jacinto, based on

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their best professional judgement and experience. The buffer shall be of a distance to ensure avoidance of adverse effects to the nesting bird by accounting for topography, ambient conditions, species, nest location, and activity type. The buffer around the nest shall be delineated and flagged, and all work within these buffers shall be halted until a qualified biologist determines the nesting effort is finished (i.e., the juveniles are surviving independent from the nest or the nest has failed). The biologist shall monitor the nest at the onset of project activities, and at the onset of any changes in such project activities (e.g., increase in number or type of equipment, change in equipment usage, etc.) to determine the efficacy of the buffer. If the biologist determines that such project activities may be causing an adverse reaction, the biologist shall adjust the buffer accordingly or implement alternative avoidance and minimization measures, such as redirecting or rescheduling construction or erecting sound barriers. The onsite biologist shall review and verify compliance with these nesting boundaries and shall verify the nesting effort has finished (i.e., the juveniles are surviving independent from the nest). All nests shall be monitored as determined by the qualified biologist until nestlings have fledged and dispersed or it is otherwise confirmed that the nest has been unsuccessful or abandoned. Work can resume within the buffer area when no other active nests are found. If vegetation clearing is not initiated within 72 hours of a negative survey during the nesting season, the nesting survey must be repeated to confirm the absence of nesting birds. Upon completion of the survey and nesting bird monitoring, a report shall be prepared and submitted to City of San Jacinto Planning Division for mitigation monitoring compliance record keeping.

BIO-2: To avoid project-related impacts to burrowing owls potentially occurring on or in the vicinity of the project site, a preconstruction presence/absence survey for burrowing owl in accordance with the March 2006 Burrowing Owl Survey Instructions for the Western Riverside County Multiple Species Habitat Conservation Plan Area shall be conducted by a qualified biologist within 30 days prior to the commencement of ground disturbing activities including vegetation clearing, grubbing, tree removal, or site watering. In addition, a preconstruction survey for burrowing owl shall be conducted within three (3) days prior to initiation of project activities and reported to the City of San Jacinto, and if an owl or owls are detected, reported to the California Department of Fish and Wildlife (CDFW). If no burrowing owls are observed during the survey, site preparation and construction activities may begin. If ground-disturbing activities occur, but the site is left undisturbed for more than 30 days, another preconstruction survey shall again be necessary to minimize the possibility burrowing owl have colonized the site since it was last disturbed. If burrowing owls are found, the same coordination described in this measure shall be necessary.

If burrowing owl are determined present within 500 feet of the project site, then avoidance or minimization measures shall be undertaken in consultation with the City

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of San Jacinto, CDFW and U.S. Fish and Wildlife Service (USFWS). CDFW shall be sent written notification within 48 hours of detection of burrowing owls. The qualified biologist and project applicant shall coordinate with the City, CDFW, and USFWS to develop a Burrowing Owl Plan, as described below, to be approved by the City, CDFW, and USFWS prior to commencing project activities. Additionally, the Project applicant may be required to obtain a Section 2081 Incidental Take Permit, if it is deemed appropriate by CDFW. The project applicant shall implement the 2081 Incidental Take Permit if required.

If applicable, the Burrowing Owl Plan shall describe proposed avoidance, relocation, monitoring, minimization, and/or mitigation actions. The Burrowing Owl Plan shall include the number and location of occupied burrow sites and details on proposed buffers if avoiding the burrowing owls or information on the adjacent or nearby suitable habitat available to owls for relocation. If no suitable habitat is available nearby for relocation, details regarding the creation and funding of artificial burrows (numbers, location, and type of burrows) and management activities for relocated owls shall also be included in the Burrowing Owl Plan. The City shall implement the Burrowing Owl Plan following CDFW and USFWS review and approval.

If burrowing owls are observed within the project site during project implementation and construction, the project applicant shall notify CDFW immediately in writing within 48 hours of detection. If required based on the nature of the observance, a Burrowing Owl Plan shall be submitted to CDFW for review and approval within two (2) weeks of detection and no project activity shall continue within 500 feet of the burrowing owls until CDFW approves the Burrowing Owl Plan. The City shall be responsible for implementing appropriate avoidance and mitigation measures, including burrow avoidance, passive or active relocation, or other appropriate mitigation measures as identified in the Burrowing Owl Plan.

A final report shall be prepared by a qualified biologist documenting the results of the burrowing owl surveys and detailing any avoidance, minimization, and mitigation measures. The final report shall be submitted to the City and CDFW within 30 days of completion of the survey and burrowing owl monitoring for mitigation monitoring compliance record keeping.

BIO-3: To avoid impacts to special-status bat species and identify roosting habitat, a preconstruction bat survey shall be conducted by a qualified bat biologist prior to initiation of Project activities. The survey shall be conducted within a 100-foot buffer of areas containing suitable habitat (i.e., adjacent willow trees) during appropriate weather conditions per the bat biologist’s recommendations. If bats are identified, the qualified bat biologist shall identify the bats to the species level and evaluate the colony

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Biological Technical Report
41 November 2024
to determine its size and significance, and presence of a maternal colony. If any evidence of bat occupation is identified during the survey, the qualified bat biologist shall then provide additional measures to avoid impacts to roosting bats, and if the observed species has special status, as recommended by the California Department of Fish and Wildlife (CDFW). Measures provided shall be specific to the individual roost species present, and proposed construction activities, and shall include: a) postponement of Project activities within a no-work buffer specified by the bat biologist to outside of the bat maternity season (typically, maternity season is April 1 through August 31) if a maternity colony is identified to be present and b) monitoring of Project activities by a qualified bat biologist. Project activities that do not produce noise or vibrations substantially higher than ambient conditions may be conducted if a nonmaternal roosting colony is present at the qualified bat biologist’s discretion. If the qualified bat biologist determines that nonmaternal colony roosting bats are disturbed by construction activities, construction activities shall cease immediately and additional avoidance measures (e.g., installation of a noise shroud or sound curtain) shall be required before activities resume. If a maternity colony is present, tree removal and/or modification shall occur outside the bat maternity season (typically April 1 through August 31) in the fall (after flightless young have become volant as determined by the qualified bat biologist) and under the supervision of a qualified bat biologist.

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Packet Pg. 675 Attachment: Appendix B - Biological Technical Report & MSHCP Consistency Analysis (McLeish Planned Development Permit & Tentative

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Packet Pg. 913 Attachment: Planning Commission Staff Report (McLeish Ranch Planned Development Permit & Tentative Tract Map 38203 (P22-022)) McLeish Ranch Project Tentative Tract 31282
Biological Technical Report
42 November 2024

11.0 REFERENCES
Baldwin, B. G., D. H. Goldman, D. J. Keil, R. Patterson, T. J. Rosatti, and D. H. Wilken, editors. 2012.

The Jepson Manual: Vascular Plants of California, second edition. University California Press, Berkeley.

Brady, Roland H. III and Kris Vyverberg. 2013. Methods to Describe and Delineate Episodic Stream Processes on Arid Landscapes for Permitting Utility-Scale Solar Power Plants. California Energy Commission. Publication Number: CEC-500-2014-013.

CDFW (California Department of Fish and Wildlife). 2021a. RareFind, California Department of Fish and Wildlife, California Natural Diversity Database (CNDDB). Retrieved from <https://map.dfg.ca.gov/rarefind/view/ RareFind.aspx>.
2021b. Natural Communities. VegCAMP, Biogeographic Data Branch. Accessed August 2021 from <https://www.wildlife.ca.gov/Data/VegCAMP/Natural-Communities>. 2021c. Special Vascular Plants, Bryophytes, and Lichens List. Natural Diversity Database.

Dated July 2021.
2021d. Fish and Game Code Section 1600-1616. Retrieved from <http://leginfo.legislature.ca.gov/faces/codes_displaySection.xhtml?lawCode=FGC&secti onNum=1602>.
2021e State and federally listed endangered, threatened, and rare plants of California.

Natural Diversity Database. Dated July 2021.
2021f. Special Animals List. Natural Diversity Database. Dated July 2021.

CDFW Staff Report on Burrowing Owl. State of California Natural Resources Agency. March 2012.

CNPS (California Native Plant Society). 2021. Inventory of Rare and Endangered Plants of California (online edition, v8-03 0.39). Retrieved in September 2021 from <http://www.rareplants.cnps.org>.

County of Riverside. 2006. Burrowing Owl Survey Instructions for the Western Riverside MSHCP.

Environmental Programs Department. March 29.

Fahrig, L., and G. Merriam. 1985. Habitat patch connectivity and population survival. Ecology 66:1762-1768.

Google. 2021. Google Earth© website.

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Biological Technical Report
43 November 2024
Harris, L.D. and P.B. Gallagher. 1989. New Initiatives for Wildlife Conservation: The Need for Movement Corridors (pp. 11–34). Preserving Communities and Corridors (G. Mackintosh, Ed.). Washington, D.C.: Defenders of Wildlife.

Historic Aerials. Accessed October 2021. https://www.historicaerials.com/viewer.

Laymon, S.A. and M.D. Halterman. 1989. A Proposed Management Plan for Yellow-billed Cuckoos in California. D. Abell, Tech. Coord., Proceedings of the California Riparian Systems Conference: Protection, Management, and Restoration for the 1990’s. Berkeley, CA: USDA Forest Service Gen. Tech. Rep. PSW-110.

NRCS (Natural Resource Conservation Service). 2021. Web Soil Survey. U.S. Department of Agriculture Natural Resources Conservation Service. Retrieved from:
<http://websoilsurvey.sc.egov.usda.gov/App/WebSoilSurvey.aspx>.

Sawyer, John O., Todd Keeler-Wolf, and Julie M. Evens. 2008. A Manual of California Vegetation. 2nd ed. California Native Plant Society and California Department of Fish and Game.

Sacramento, California.

Simberloff, D. and J. Cox. 1987. Consequences and Costs of Conservation Corridors. Conservation Biology 1(1): 63–71. Boston, MA: Blackwell Scientific Publications.

Sogge, M.K., Ahlers, Darrell, and Sferra, S.J., 2010, A natural history summary and survey protocol for the Southwestern Willow Flycatcher: U.S. Geological Survey Techniques and Methods 2A-10, 38 p.

USACE (United States Army Corps of Engineers). 1987. Corps of Engineers Wetlands Delineation Manual. Wetland Research Program Technical Report Y-87-1. Vicksburg, MS:

Environmental Laboratory.
2008. Regional Supplement to the Corps of Engineers Wetland Delineation Manual: Arid West Region (Version 2.0), ed. J. S. Wakeley, R. W. Lichvar, and C. V. Noble. ERDC/EL TR08-28. Vicksburg, MS: U.S. Army Engineer Research and Development Center.

USFWS (United States Fish and Wildlife Service). 2021a. Critical Habitat for Threatened and Endangered Species. Retrieved from <https://fws.maps.arcgis.com/home/ webmap/viewer.html?webmap=9d8de5e265ad4fe09893cf75b8dbfb77>. 2021b. National Wetlands Inventory. Wetlands Mapper. Retrieved from:
<http://www.fws.gov/wetlands/Data/mapper.html>.

Western Bat Working Group. 2007. Species description. Available online at:
<http://wbwg.org/western-bat-species/>.

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FIGURES

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Packet Pg. 678 Attachment: Appendix B - Biological Technical Report & MSHCP Consistency Analysis (McLeish Planned Development Permit & Tentative

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Packet Pg. 916 Attachment: Planning Commission Staff Report (McLeish Ranch Planned Development Permit & Tentative Tract Map 38203 (P22-022)) ^_
1:125,000
Map Created: October 2021
Data Source: ESRI
McLeish Ranch
Regional Map
Prepared By:

VCS Environmental Figure 1.

Document Path: Z:\GIS\Richland communities\McLeish\Drafts\20211028_Regional.mxd ²
Project Location
0 0.75 1.5 3
Miles

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Packet Pg. 679 Attachment: Appendix B - Biological Technical Report & MSHCP Consistency Analysis (McLeish Planned Development Permit & Tentative

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Packet Pg. 917 Attachment: Planning Commission Staff Report (McLeish Ranch Planned Development Permit & Tentative Tract Map 38203 (P22-022)) Map Created: June 2022
Data Sources: ESRI, BAWCE,
County of Riverside
Prepared By:

VCS Environmental
McLeish Ranch
1:5,000
² Figure 2 Aerial Map
0 225 450
Feet Service Layer Credits: Source: Esri, Maxar, GeoEye, Earthstar Geographics, CNES/Airbus DS, USDA, USGS, AeroGRID, IGN, and the GIS User Community
Esri, HERE, Garmin, (c) OpenStreetMap contributors
Project Footprint (96.37 ac)
Project Site (95.37 ac)
ROW Addition (0.92 ac)
Site Plans

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Packet Pg. 680 Attachment: Appendix B - Biological Technical Report & MSHCP Consistency Analysis (McLeish Planned Development Permit & Tentative

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Packet Pg. 918 Attachment: Planning Commission Staff Report (McLeish Ranch Planned Development Permit & Tentative Tract Map 38203 (P22-022)) San Jacinto
Lakeview
Map Created: June 2022
Data Sources: ESRI, BAWCE
Prepared By:

VCS Environmental
McLeish Ranch
1:24,000 ² Figure 3 USGS Topographic Map
0 1,000 2,000
Feet

7.5-min Quadrangle: San Jacino
Section: 21
Township: T4S
Range: R1W
Meridian: San Bernardino
State: California
County: Riverside
Service Layer Credits: Copyright:© 2013 National Geographic Society, i-cubed
Project Footprint

7.5-Minute Quadrangle

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Packet Pg. 919 Attachment: Planning Commission Staff Report (McLeish Ranch Planned Development Permit & Tentative Tract Map 38203 (P22-022)) !(!(
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Map Created: June 2022
Data Source: ESRI, BAWCE
McLeish Ranch
Figure 4 BUOW Study Area Map
Service Layer Credits: Source: Esri, Maxar,
GeoEye, Earthstar Geographics, CNES/Airbus DS,
USDA, USGS, AeroGRID, IGN, and the GIS User
Community
!(
Project Footprint
Study Area (includes 500-foot buffer)
Transects
Burrows
0 300 600
Feet ² Prepared By:

VCS Environmental

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Packet Pg. 682 Attachment: Appendix B - Biological Technical Report & MSHCP Consistency Analysis (McLeish Planned Development Permit & Tentative

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Packet Pg. 920 Attachment: Planning Commission Staff Report (McLeish Ranch Planned Development Permit & Tentative Tract Map 38203 (P22-022)) Map Created: June 2022
Data Sources: ESRI, BAWCE
Prepared By:

VCS Environmental
McLeish Ranch
1:5,000 ² Figure 5 Vegetation Map
0 225 450
Feet Service Layer Credits: Source: Esri, Maxar, GeoEye, Earthstar Geographics, CNES/Airbus DS, USDA, USGS, AeroGRID, IGN, and the GIS User Community
Esri, HERE, Garmin, (c) OpenStreetMap contributors
Project Footprint (96.35 ac)
Project Site (95.37 ac)
ROW Addition (0.92 ac)
Vegetation / Land Cover Type
Herbaceous Non-Native Forbs and Grasses
(89.11 ac)
Agricultural Crops (4.30 ac)
Disturbed / Developed (2.63 ac)
Tamarisk Thickets (0.31 ac)

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Packet Pg. 921 Attachment: Planning Commission Staff Report (McLeish Ranch Planned Development Permit & Tentative Tract Map 38203 (P22-022)) Tr2
GsB
GvB
GpB
GoB
GoB
Tr2
DrA
Tt2
DrA
GoB
GuB
GuB
DrA
GuB
GsB
GrB
Tr2
GpB W
GsB
Map Created: June 2022
Data Sources: ESRI, BAWCE, NRCS
Prepared By:

VCS Environmental
McLeish Ranch
1:5,000 ² Figure 6 Soils Map
0 225 450
Feet Service Layer Credits: Source: Esri, Maxar, GeoEye, Earthstar Geographics, CNES/Airbus DS, USDA, USGS, AeroGRID,
IGN, and the GIS User Community
Esri, HERE, Garmin, (c) OpenStreetMap contributors
Project Footprint (96.35 ac)
Project Site (95.37 ac)
ROW Addition (0.92 ac)
Soil Type
Dello loamy fine sand
Grangeville fine sandy loam, poorly drained
Grangeville fine sandy loam, saline-alkali
Grangeville loamy fine sand
Grangeville sandy loam, drained
Grangeville sandy loam, sandy substratum
Grangeville sandy loam, substratum, saline-alkali
Traver fine sandy loam, strongly saline-alkali
Traver loamy fine sand
Water

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Packet Pg. 922 Attachment: Planning Commission Staff Report (McLeish Ranch Planned Development Permit & Tentative Tract Map 38203 (P22-022)) Map Created: June 2022
Data Sources: ESRI, BAWCE, CDFW
Prepared By:

VCS Environmental
McLeish Ranch
CNDDB Animal
Occurrences / Critical
1:40,000 ² Figure 7a Habitat Map
0 2,000 4,000
Feet Service Layer Credits: Source: Esri, Maxar, GeoEye, Earthstar Geographics, CNES/Airbus DS, USDA, USGS, AeroGRID,
IGN, and the GIS User Community
Esri, HERE, Garmin, (c) OpenStreetMap contributors
Project Footprint
2-mile Buffer
Critical Habitat
San Bernardino Merriam's kangaroo rat
CNDDB Occurences
American badger
California glossy snake
Los Angeles pocket
San Bernardino kangaroo rat
San Diego desert woodrat
Southern California legless lizard
Stephens' kangaroo rat
burrowing owl
coast horned lizard
ferruginous hawk
least Bell's vireo
loggerhead shrike
northwestern San Diego pocket mouse
orange-throated whiptail
red-diamond rattlesnake
tricolored blackbird
western spadefoot
western yellow bat
western yellow-billed cuckoo
white-faced ibis
yellow warbler
yellow-headed blackbird

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Packet Pg. 923 Attachment: Planning Commission Staff Report (McLeish Ranch Planned Development Permit & Tentative Tract Map 38203 (P22-022)) Map Created: June 2022
Data Sources: ESRI, BAWCE, CDFW
Prepared By:

VCS Environmental
McLeish Ranch
CNDDB Plant
1:40,000
² Figure
7b Occu
rrences
0 2,000 4,000
Feet Service Layer Credits: Source: Esri, Maxar, GeoEye, Earthstar Geographics, CNES/Airbus DS, USDA, USGS, AeroGRID,
IGN, and the GIS User Community
Esri, HERE, Garmin, (c) OpenStreetMap contributors
Project Footprint
2-mile Buffer
CNDDB Occurences
Coulter's goldfields
Davidson's saltscale
Mojave tarplant
Southern Cottonwood Willow Riparian Forest
chaparral sand-verbena
salt spring checkerbloom
smooth tarplant

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Packet Pg. 924 Attachment: Planning Commission Staff Report (McLeish Ranch Planned Development Permit & Tentative Tract Map 38203 (P22-022)) Map Created: June 2022
Data Sources: ESRI, BAWCE,
RCA Information Map
Prepared By:

VCS Environmental
McLeish Ranch
MSHCP
1:5,000
² Figure
8 Information Map
0 225 450
Feet Service Layer Credits: Source: Esri, Maxar, GeoEye, Earthstar Geographics, CNES/Airbus DS, USDA, USGS, AeroGRID,
IGN, and the GIS User Community
Esri, HERE, Garmin, (c) OpenStreetMap contributors
Project Footprint
ROW Addition
Project Site
Burrowing Owl Survey Area
Narrow Endemic Plants

ROADCLASS
MAJOR

SECONDARY

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APPENDIX
A

Site Photographs

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Packet Pg. 926 Attachment: Planning Commission Staff Report (McLeish Ranch Planned Development Permit & Tentative Tract Map 38203 (P22-022)) Appendix A – Site Photographs
McLeish Ranch Project Tentative Tract 31282
A-2
Photo 1. Typical view of the Project site; viewing northeast. Photo date: April 13, 2022.

Photo 2. View of Lyon Avenue and adjacent residential development; viewing north.

Photo date: October 29, 2021.

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McLeish Ranch Project Tentative Tract 31282
A-3
Photo 3. View of the northern corner of the Project site, viewing west. Photo date: October 29, 2021.

Photo 4. Another view of the northern portions of the Project site, viewing southwest.

Photo date: October 29, 2021.

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McLeish Ranch Project Tentative Tract 31282
A-4
Photo 5. View of open space areas west of the Project site (offsite), viewing west.

Photo date: October 29, 2021.

Photo 6. Example of suitable burrow for burrowing owl, but lacking burrowing owl signs (whitewash, pellets, etc). Photo date: October 29, 2021.

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Packet Pg. 929 Attachment: Planning Commission Staff Report (McLeish Ranch Planned Development Permit & Tentative Tract Map 38203 (P22-022)) Appendix A – Site Photographs
McLeish Ranch Project Tentative Tract 31282
A-5
Photo 7. View of earthen drainage feature located adjacent to the southern boundary of the Project site (outside of the Project site). Viewing northwest. Photo date: April 6, 2022.

Photo 8. View of the southwestern portion of the Project site, viewing west.

Photo date: October 29, 2021.

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McLeish Ranch Project Tentative Tract 31282
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Photo 9. Another view of the southwestern corner of the Project site, viewing southwest.

Photo date: October 29, 2021.

Photo 10. View of agricultural crops within the southeastern portion of the Project site, viewing northeast. Photo date: April 13, 2022.

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Packet Pg. 931 Attachment: Planning Commission Staff Report (McLeish Ranch Planned Development Permit & Tentative Tract Map 38203 (P22-022)) Appendix A – Site Photographs
McLeish Ranch Project Tentative Tract 31282
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Photo 11. View of agricultural crops within the Project site, viewing east. Photo date: July 26, 2024.

Photo 12. View of the western portion of the Project site, viewing south.

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APPENDIX
B
Plant and Wildlife Species Observed

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Packet Pg. 933 Attachment: Planning Commission Staff Report (McLeish Ranch Planned Development Permit & Tentative Tract Map 38203 (P22-022)) Appendix B – Species Observed
McLeish Ranch Project Tentative Tract 31282
B-2
Plant Species Observed within the Project Site

Scientific Name Common Name
Amaranthaceae Amaranth Family
Amaranthus retroflexus* rough pigweed
Asteraceae Sunflower Family
Baccharis salicifolia ssp. salicifolia mulefat
Erigeron bonariensis* flax-leaved horseweed
Helianthus annuus common sunflower
Heterotheca grandiflora telegraph weed
Lactuca serriola* prickly lettuce
Oncosiphon piluliferum* stinknet
Stephanomeria exigua ssp. exigua Mitra
Boraginaceae Borage Family
Amsinckia menziesii fiddleneck
Heliotropium curassavicum salt heliotrope
Brassicaseae Mustard Family
Hirschfeldia incana* short-pod mustard
Tribulus terrestris* puncture vine
Sisymbrium altissimum* tumble mustard
Sisymbrium irio* London rocket
Chenopodiaceae Goosefoot Family
Chenopodium murale* nettle leaf goosefoot
Salsola tragus* Russian thistle
Convolvulaceae Morning Glory Family
Convolvulus arvensis* field bindweed
Cucurbitaceae Gourd Family
Citrullus sp.* watermelon
Fabaceae Pea Family
Medicago sativa* alfalfa
Melilotus indicus* Annual yellow sweetclover
Geraniaceae Geranium Family
Erodium cicutarium* coastal heron’s bill

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McLeish Ranch Project Tentative Tract 31282
B-3
Scientific Name Common Name
Malvaceae Family
Malva parviflora* cheeseweed
Malvella leprosa alkali mallow

Poaceae Grass Family
Bromus diandrus* ripgut brome
Bromus rubens* red brome
Hordeum murinum* foxtail barley
Polygonaceae Buckwheat Family
Polygonum argyrocoleon* Persian knotweed
Rumex pulcher* fiddleleaf dock
Salicaceae Willow Family
Salix gooddingii Goodding’s black willow
Solanaceae Nightshade Family
Datura wrightii jimsonweed
Nicotiana glauca* tree tobacco
Physalis acutifolia sharp leaf ground cherry
Tamaricaceae Tamarisk Family
Tamarix ramosissima* tamarisk
* non-native species.

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McLeish Ranch Project Tentative Tract 31282
B-4
Wildlife Species Observed/Detected within the Study Area

Scientific Name Common Name
Aves - Birds
Accipitridae Kites, Eagles and Hawks
Buteo jamaicensis red-tailed hawk
Circus hudsonius † Northern harrier
Alaudidae Larks
Eremophila alpestris † horned lark
Ardeidae Herons, Egrets, and Bitterns
Ardea alba great egret
Cathartidae New World Vultures
Cathartes aura turkey vulture
Charadriidae Plovers and Lapwings
Charadrius vociferus killdeer

Corvidae Jays, Magpies and Crows
Corvus brachyrhynchos American crow
Corvus corax common raven
Columbridae Pigeons and Doves
Columba livia rock pigeon
Zenaida macroura mourning dove
Falconidae Caracaras and Falcons
Falco sparverius American kestrel
Fringillidae Finches, Euphonias, and Allies
Spinus psaltria lesser goldfinch

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McLeish Ranch Project Tentative Tract 31282
B-5
Scientific Name Common Name
Hirundinidae Swallows and Martins
Hirundo rustica barn swallow
Petrochelidon pyrrhonota cliff swallow
Icteridae Troupials and Allies
Icterus bullockii Bullock’s oriole
Sturnella neglecta Western meadowlark
Motacillidae Wagtails and Pipits
Anthus rubescens American pipit
Parulidae New World Warblers
Setophaga coronata yellow-rumped warbler
Setophaga petechia †** yellow warbler
Passerellidae New World Sparrows
Passerculus sandwichensis savannah sparrow
Zonotrichia leucophrys white-crowned sparrow
Regulidae Kinglets
Corthylio calendula ruby-crowned kinglet
Trochilidae Hummingbirds
Calypte anna Anna’s hummingbird
Tyrannidae Tyrant Flycatcher
Sayornis nigricans black phoebe
Sayornis saya Say’s phoebe
Vireonidae Vireos, Shrike-Babblers, and Erpornis
Vireo bellii pusillus †** least Bell’s vireo

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Packet Pg. 699 Attachment: Appendix B - Biological Technical Report & MSHCP Consistency Analysis (McLeish Planned Development Permit & Tentative

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Packet Pg. 937 Attachment: Planning Commission Staff Report (McLeish Ranch Planned Development Permit & Tentative Tract Map 38203 (P22-022)) Appendix B – Species Observed
McLeish Ranch Project Tentative Tract 31282
B-6
Scientific Name Common Name
Mammalia – Mammals
Sciuridae Squirrels, Marmots, and Chipmunks
Otospermophilus beecheyi California ground squirrel
Reptilia – Reptiles
Colubridae Colubrids
Pituophis catenifer annectens San Diego gophersnake
† sensitive species
** observed off-site, within 500-foot buffer radius around Project site

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Packet Pg. 700 Attachment: Appendix B - Biological Technical Report & MSHCP Consistency Analysis (McLeish Planned Development Permit & Tentative

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Packet Pg. 938 Attachment: Planning Commission Staff Report (McLeish Ranch Planned Development Permit & Tentative Tract Map 38203 (P22-022))

APPENDIX
C
Special Status Species
Potential Occurrence Determination

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Packet Pg. 701 Attachment: Appendix B - Biological Technical Report & MSHCP Consistency Analysis (McLeish Planned Development Permit & Tentative

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Packet Pg. 939 Attachment: Planning Commission Staff Report (McLeish Ranch Planned Development Permit & Tentative Tract Map 38203 (P22-022)) Appendix C – Special Status Species Potential Occurrence McLeish Ranch Project Tentative Tract 31282

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Packet Pg. 940 Attachment: Planning Commission Staff Report (McLeish Ranch Planned Development Permit & Tentative Tract Map 38203 (P22-022)) Appendix C – Special Status Species Potential Occurrence McLeish Ranch Project Tentative Tract 31282

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APPENDIX C

Special Status Species Potential Occurrence Determination

This table summarizes conclusions from analysis and field surveys regarding the potential occurrence of special status species within the Project. During the field surveys, the potential for special status species to occur within the Project Footprint was assessed based on the following criteria:
• Present: observed on the site during the field surveys, or recorded on-site by other qualified biologists.
• High potential to occur: observed in similar habitat in the region by a qualified biologist, or habitat on the site is a type often utilized by the species and the site is within the known distribution and elevation range of the species.
• Moderate potential to occur: reported sightings in surrounding region, or the site is within the known distribution and elevation range of the species and habitat on the site is a type occasionally used by or typical of the species.
• Low potential to occur: the site is within the known distribution and elevation range of the species but habitat on the site is rarely used by the species or no suitable habitat is present, or there are no known recorded occurrences of the species within or adjacent to the site.
• Absent: a focused study failed to detect the species or the site is outside the known distribution and elevation range of the species.
• Unknown: the species’ distributional/elevation range and habitat are poorly known.

Even with field surveys, biologists assess the probability of occurrence rather than make a definitive conclusion about species’ presence or absence. Failure to detect the presence of the species is not definitive and may be due to variable effects associated with fire, rainfall patterns, and/or season.

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Packet Pg. 703 Attachment: Appendix B - Biological Technical Report & MSHCP Consistency Analysis (McLeish Planned Development Permit & Tentative

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Packet Pg. 941 Attachment: Planning Commission Staff Report (McLeish Ranch Planned Development Permit & Tentative Tract Map 38203 (P22-022)) Appendix C – Special Status Species Potential Occurrence McLeish Ranch Project Tentative Tract 31282

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Special Status Species: Potential to Occur within the Project Footprint Scientific Name Common Name Status General Habitat Description Potential for
Occurrence within
the Project Footprint
PLANTS
Abronia villosa var.
aurita
Chaparral sandverbena (also
foothill sandverbena)
CRPR: 1B.1,

BLMS, FSS
Exposed sites with sandy soils, especially washes and dunes, in chaparral, sage scrub, and alluvial scrub.

Elevation: <1600 meters
Blooming period: (Jan)March - September
Low. Nearby
occurrences, however,
site lacks suitable
habitat and not
observed during
focused rare plant
survey.

Allium marvinii Yucaipa onion CRPR: 1B.2,
FSS
MSHCP
Group 3
Bulb-bearing perennial within clay openings in chaparral habitat, including dry slopes, ridges. Endemic to the Beaumont region of the southern San Bernardino Mountains in San Bernardino County and western Riverside County.

Elevation: 300-1250 meters
Blooming period: April - May
Low. No habitat on site
and no nearby
occurrences.

Allium munzii Munz’s onion FE, ST,
CRPR: 1B.1
MSHCP:

Group 3
It is endemic to western Riverside County where it grows in the coastal sage scrub, grassland or juniper woodland communities of the local hills and mountains. Occur on clay and cobbly clay soils which include the following series: Altamont, Auld, Bosanko, Claypit, and Porterville.

Elevation: 300 - 900 meters
Blooming period: March - May
Low. No habitat on site
and no nearby
occurrences.

Ambrosia pumila San Diego
ambrosia
FE, CRPR:
1B.1,
MSHCP:

Group 3
Range extends from Riverside County through San Diego County into Baja California. It generally occurs in chaparral, coastal scrub and valley and foothill grasslands, usually where exposed to seasonal flooding. This species inhabits sandy loam soils or clay soils and has been known to tolerate alkaline conditions. In valleys, it persists where disturbance has been superficial. Sometimes, this species can be found on margins or near vernal pools.

Elevation: 50-600 meters
Blooming period: April - October
Low. Site lacks suitable
habitat and site has
experienced high levels
of disturbance. Not
observed during
focused rare plant
survey.

Arctostaphylos
rainbowensis
rainbow
manzanita
CRPR: 1B.1,

BLMS, FSS
It is endemic to California, where it is known only from northern San Diego and southern Riverside Counties in the Peninsular Ranges. It is most Low. No nearby
occurrences and no

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Packet Pg. 704 Attachment: Appendix B - Biological Technical Report & MSHCP Consistency Analysis (McLeish Planned

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Packet Pg. 942 Attachment: Planning Commission Staff Report (McLeish Ranch Planned Development Permit & Appendix C – Special Status Species Potential Occurrence McLeish Ranch Project Tentative Tract 31282

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Scientific Name Common Name Status General Habitat Description Potential for
Occurrence within
the Project Footprint
MSHCP:

Group 2 and
Table 9-3
common in the chaparral of the lower elevation coastal Santa Ana Mountains, and the only manzanita species throughout most of its range.

Elevation: 150 – 800 meters
Blooming period: Jan - Feb
habitat on site.

Astragalus
pachypus var.
jaegeri
Jaeger's milkvetchCRPR: 1B.1,

BLMS, FSS
MSHCP:

Group 2
Jaeger's milk-vetch occurs on dry ridges and valleys and open sandy or rocky slopes in coastal scrub, chaparral, valley and foothill grassland and cismontane woodland Habitats.

Elevation: 365 - 915 meters
Blooming period: December – January
Low. No habitat on site
and no nearby
occurrences.

Atriplex coronata
var. notatior
San Jacinto
Valley
crownscale
FE, CRPR:
1B.1
MSCHP:

Group 3
Suitable habitat for the San Jacinto Valley crownscale includes floodplains (seasonal wetlands) dominated by alkali scrub, alkali playas, vernal pools, and alkali grasslands. It is endemic to western Riverside County and is restricted to the San Jacinto, Perris, Menifee and Elsinore Valleys.

Restricted to highly alkaline, silty-clay soils in association with the TraverDomino-Willows soil association; the majority (approximately 80 percent) of the populations being associated with the Willows soil series.

Elevation: 400 - 500 meters
Blooming period: April - August
Low. Suitable soils
(Traver series, alkaline)
occur, however, site
lacks suitable habitat
and species not
observed during
focused rare plant
survey.

Atriplex parishii Parish’s
brittlescale
CRPR: 1B.1,
FSS
MSHCP:

Group 3
Annual herb native to California and Baja California. Habitat includes chenopod scrub, playas, and vernal pools. Threatened by development, agricultural conversion, and grazing. Restricted to highly alkaline silty-clay soils.

Elevation: <470 meters
Blooming period: June to October
Low. Nearby
occurrences, however,
site lacks suitable
habitat and species not
observed during
focused rare plant
survey.

Atriplex serenana
var. davidsonii
Davidson’s
saltscale
CRPR: 1B.2
MSHCP:

Group 3
Annual herb native to California and Baja California. Habitat includes alkaline soils, coastal bluff scrub, and coastal scrub. In Riverside County, Davidson's saltscale is found in the Domino, Willows and Traver soils series in association with the alkali vernal pools, alkali annual grassland, alkali playa, and alkali scrub components of alkali vernal plains.

Elevation: < 200 meters
Blooming period: April - October
Low. Suitable soils
(Traver series, alkaline)
occur, however, site
lacks suitable habitat
and species not
observed during
focused rare plant
survey.

Brodiaea filifolia thread-leaved FT, SE, Perennial bulbiferous herb. Found in floodplains in semi-alkaline mudflats, Low. Site lacks wetland

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Packet Pg. 943 Attachment: Planning Commission Staff Report (McLeish Ranch Planned Development Permit & Appendix C – Special Status Species Potential Occurrence McLeish Ranch Project Tentative Tract 31282

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Scientific Name Common Name Status General Habitat Description Potential for
Occurrence within
the Project Footprint
brodiaea CRPR: 1B.1,
MSHCP:

Group 3
vernal pools, mesic southern needlegrass grassland, mixed nativenonnative grassland, alkali grassland, and alluvial fan sage scrub plant communities. Requires very heavy clay soils. The range of this species extends from the foothills of the San Gabriel Mountains at Glendora in Los Angeles County, east to Arrowhead Hot Springs in the western foothills of the San Bernardino Mountains in San Bernardino County, and south through eastern Orange and western Riverside Counties to the City of San Diego.

Elevation: 25 – 860 meters
Blooming period: March - June
conditions and heavy
clay soils. Species not
observed during
focused rare plant
survey.

Calochortus
plummerae
Plummer's
mariposa-lily
CRPR: 4.2,
MSHCP:

Group 2
Perennial bulbiferous herb endemic to California. Habitat includes granitic, rocky soils within chaparral, cismontane woodland, coastal scrub, lower montane coniferous forest, and valley and foothill grassland. Threatened by development, fire suppression, foot traffic, mining, powerline construction, and recreational activities. Less common at higher elevations.

Elevation: < 1700 meters
Blooming period: May - July
Low. No habitat on site
and no nearby
occurrences.

Caulanthus
simulans
Payson's
jewelflower
CRPR: 4.2,
FSS
MSHCP:

Group 1
Payson's jewelflower occurs in pinyon-juniper woodland, chaparral and coastal sage scrub, typically on north-facing slopes and ridgelines on sandy-granitic soils. This species frequently occurs on rocky steep slopes, in burned areas or in disturbed sites such as streambeds.

Elevation: 90 - 2200 meters
Blooming period: (Feb)March – May(Jun)
Low. No habitat on site
and no nearby
occurrences.

Centromadia
pungens ssp. laevis
smooth tarplant CRPR: 1B.1,
MSHCP:

Group 3
Suitable habitat for the smooth tarplant includes alkali scrub, alkali playas, and grasslands with alkaline affinities.

Elevation: 0 – 640 meters
Blooming period: April - September
Low. Numerous nearby
occurrences and
potential habitat on
site, however, species
not observed during
focused rare plant
survey.

Chorizanthe
leptotheca
peninsular
spineflower
CRPR: 4.2
MSHCP:

Group 2 and
Annual herb found in open habitats, typically on granitic-derived or alluvial surfaces. At higher elevations, this species appears to be associated with chaparral, sage scrub and coniferous forest openings and at lower Low. No habitat on site
and nearby occurrences
occur in very different

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Packet Pg. 706 Attachment: Appendix B - Biological Technical Report & MSHCP Consistency Analysis (McLeish Planned

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Packet Pg. 944 Attachment: Planning Commission Staff Report (McLeish Ranch Planned Development Permit & Appendix C – Special Status Species Potential Occurrence McLeish Ranch Project Tentative Tract 31282

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Scientific Name Common Name Status General Habitat Description Potential for
Occurrence within
the Project Footprint
Table 9-3 elevations it is typically associated with old formation alluvial benches.

Elevation: 300 - 1600 meters
Blooming period: May - August
habitat and soils
(alluvial fan/washes).

Chorizanthe parryi
var. parryi
Parry's
spineflower
CRPR: 1B.1,

BLMS, FSS,
MSHCP:

Group 2
Parry's spineflower occurs within the alluvial chaparral and scrub of the San Gabriel, San Bernardino and San Jacinto Mountains.

Elevation: 90 – 800 meters
Blooming period: April - June
Low. No habitat on site
and nearby occurrences
occur in very different
habitat and soils.

Deinandra
mohavensis
(formerly known as
Hemizonia
mohavensis)
Mojave tarplant SE, CRPR:
1B.2, BLMS,
FSS
MSHCP:

Group 2 and
Table 9-3
Mojave tarplant can be found in low sand bars in riverbeds, along stream channels and in ephemeral grassy areas in riparian scrub and chaparral.

Elevation: 460 - 1600 meters
Blooming period: (May)June – Oct(Jan)
Low. Nominal potential
habitat on site but no
nearby occurrences.

Species not observed
during focused rare
plant survey.

Deinandra
paniculata
San Diego
tarplant
(paniculate
tarplant)
CRPR: 4.2 Occurs as a dominant or co-dominant plant in the herbaceous layer of grasslands, forblands, openings of coastal sage scrub and oak woodland.

Often in sandy soils.

Elevation: <1300 meters
Blooming period: (Mar)April – November(Dec)
Low. Potential habitat
on site and nearby
occurrences, however,
species not observed
during focused rare
plant survey.

Dudleya multicaulis many-stemmed
dudleya
CRPR: 1B.2,

BLMS, FSS
MSHCP:

Group 3
Many-stemmed dudleya is often associated with clay soils in barrens, rocky places, and ridgelines as well as thinly vegetated openings in chaparral, coastal sage scrub, and southern needlegrass grasslands on clay soils.

Elevation: 15 – 790 meters
Blooming period: April - July
Low. No habitat on site
and nearby occurrences
occur in very different
habitat and soils.

Dudleya viscida sticky-leaved
dudleya
CRPR 1B.2,
FSS
MSHCP:

Group 2
and Table 9-
3 Perennial herb endemic to California. Occurs on bluffs and rocky cliffs.

Known from southern South Coast of Orange and San Diego Counties. Also within chaparral, sage scrub, and coastal bluff scrub within the Santa Ana Mountains of western Riverside County on mesic, mostly north-facing, and often steep, rocky canyon slopes.

Elevation: 10 - 550 meters
Blooming period: May -June
Low. No habitat on site
and no nearby
occurrences.

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Packet Pg. 707 Attachment: Appendix B - Biological Technical Report & MSHCP Consistency Analysis (McLeish Planned