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Analysis Supporting Categorical Exemption <br /> 4.2 Agriculture and Forestry Resources <br /> The Project Site and surrounding propertiesare not used for agriculture.The Project Site is designated as <br /> Urban and Built-Up Land on the most recent California Department of Conservation Important Farmland <br /> Map (DOC 2024). No impactsto agricultural resources would occur. No forest land or timberland zoned <br /> Timberland Production are located on the Project Site. No impacts to forest land or timberland would <br /> occur. <br /> 4.3 Air Quality <br /> 4.3.1 Thresholds Of Significance <br /> 4.3.7.1 South Coast Air Quality Management District Regional Thresholds <br /> The significance criteria established by the applicable air quality management or air pollution control <br /> district(SCAQMD)maybe relied upon to make the above determinations.According to the SCAQMD, an <br /> air quality impact is considered significant if the Proposed Project violates any ambient air quality <br /> standard, contribute substantially to an existing or projected air quality violation, or expose sensitive <br /> receptorsto substantial pollutant concentrations.The SCAQMD has established thresholds of significance <br /> for air quality for construction and operational activities of land use development projects such as that <br /> proposed, as shown in Table 1. <br /> Table 1. SCAQMD Regional Significance Thresholds — Pounds per Day <br /> Air Pollutant Construction Activities Operations <br /> Reactive Organic Gas 75 55 <br /> Carbon Monoxide 550 550 <br /> Nitrogen Oxide 100 55 <br /> Sulfur Oxide 150 150 <br /> Coarse Particulate Matter 150 150 <br /> Fine Particulate Matter 55 55 <br /> Source: SCAQMD 1993 (PM2.5 threshold adopted June 1,2007) <br /> By its very nature, air pollution is largely a cumulative impact. No single project is sufficient in size, by <br /> itself, to result in nonattainment of ambient air quality standards.Instead, a project's individual emissions <br /> contribute to existing cumulatively significant adverse air quality impacts. If a project's individual <br /> emissions exceed its identified significance thresholds, the project would be cumulatively considerable. <br /> Projects that do not exceed significance thresholds would not be considered cumulative considerable. <br /> ECORP Consulting, Inc. 7 January 2025 <br /> Fairview Street Widening Project 2024-088.03 <br /> 9-19 <br />