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4 Environmental Analysis 4.3 Air Quality Table 4.3-11. Estimated Maximum Daily Operational Criteria Air Pollutants Emissions ROG NOxCO sox PM10 PoundsEmission Source Area,,Mobile,and Off-road 1.45 8.60 9.72 0.04 0.32 0.29 SJVAPCD Threshold 100 100 100 100 100 100 Threshold Exceeded? No No No No No No CO-carbon monoxide;M-nitrogen oxide;PM,o-particulate matter between 2.5 and 10 micrometers in diameter;PM2.5-particulate matter 2.5 micrometers in diameter or smaller;ROG—reactive organic gas;SJVAPCD—San Joaquin Valley Air Pollution Control District;SO,—sulfur oxide As shown in Tables 4.3-10 and 4.3-11, operational emissions would not exceed the SJVAPCD thresholds for ROG, NO, CO, SO, PM1o, and PM2.5. Since operational activities would be minimal, including only routine inspection and maintenance, ambient air quality modeling was not required. Additionally, traffic associated with operations would be negligible and would not result in CO hotspots at intersections. Therefore, the operational impacts would be less than significant. Mitigation: None required; however, the Applicant-proposed compliance with Rule 9510 and preparation of a Dust Control Plan have been included as Mitigation Measures AQ-1 and AQ- 2, respectively to ensure their implementation. IMPACT 4.3-3: Would the project expose sensitive receptors to substantial pollutant concentrations? (Less than Significant Impact) Sensitive receptors for air quality include facilities or land uses that serve or house members of the population that are particularly sensitive to the effects of air pollutants, such as children, the elderly, and people with illnesses. Examples of sensitive receptors include schools, hospitals, and residential areas. The nearest rural residences on land not owned by the current property owner are located approximately 1,000 feet north of the Project site on the other side of West Patterson Pass and 1,000 feet southwest of the Project site at the southern terminus of Midway Road to the west of the onsite substation, to the east of Midway Road. In addition to the significance thresholds for criteria pollutants, the SJVPACD has established significance thresholds for TAC emissions. According to Section 39655 of the California Health and Safety Code, a TAC is "an air pollutant which may cause or contribute to an increase in mortality or an increase in serious illness, or which may pose a present or potential hazard to human health." TACs consist of a variety of compounds, including metals, minerals, soot, and hydrocarbon-based chemicals. 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. Impacts to sensitive receptors are typically evaluated by analyzing the potential for health effects to result from exposure to project-related TACs. In addition, the analysis evaluates the potential for project construction to result in exposure of workers and other receptors to the dust-borne spores that cause Valley Fever. Impact 4.3-2 describes the analysis conducted for air contaminant emissions from construction and operation of the Project. The Project consists of construction of a battery energy storage facility that may have the potential to affect nearby sensitive receptors. The use of combustion equipment in Project construction activities could result in elevated concentrations of DPM,which could lead to an increase in cancer risk or chronic health impacts. Griffith Energy Storage Project 4.3-27 Tetra Tech/SCH 2022120675 Draft Environmental Impact Report August 2023