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3.0 ENVIRONMENTAL CHECKLIST <br />1388 Bancroft Avenue Project City of San Leandro <br />Initial Study/Mitigated Negative Declaration November 2018 <br />3.0-18 <br />As shown in Table 3.3-5, during construction, mitigated short-term daily emissions would not exceed the BAAQMD significance thresholds. <br />Long-Term (Operational Phase) Air Quality Impacts <br />The project would result in long-term operational emissions of criteria air pollutants and <br />ozone precursors (i.e., ROG, NOx, PM10, and PM2.5). Project-generated increases in <br />emissions would be predominantly associated with motor vehicle use, energy required for commercial and residential building operations, energy used due to water consumption, <br />energy used in solid waste collection and disposal, and area sources such hearths and use <br />of landscaping equipment. <br />Per the BAAQMD (2017a), if the project meets the screening criteria in Table 3-1 of the district’s CEQA Air Quality Guidelines, the project operations would not generate criteria <br />air pollutants and/or precursors in amounts that would exceed the thresholds of <br />significance. Project operation would therefore result in a less than significant impact on air quality from criteria air pollutant and precursor emissions (BAAQMD 2017a). Table 3-1 of <br />the BAAQMD guidelines indicates a mid-rise apartments screening level size for <br />operational emissions of 494 dwelling units. The proposed project would construct only <br />45 apartments. Therefore, the project would not violate any air quality standard or contribute substantially to an existing or projected air quality violation. The impact would <br />be less than significant. <br />With implementation of mitigation measure MM AQ-1, the project would not violate any <br />air quality standard or contribute substantially to an existing or projected air quality violation. The impact would be less than significant with mitigation incorporated. <br />c) Less Than Significant Impact. Past, present, and future development projects contribute to <br />the region’s adverse air quality impacts on a cumulative basis. According to the BAAQMD, no single project is sufficient in size, by itself, to result in nonattainment of ambient air quality standards. Instead, a project’s individual emissions contribute to existing conditions. In <br />developing thresholds of significance for air pollutants, the BAAQMD considered the <br />emissions levels for which a project’s individual emissions would be cumulatively considerable. According to the BAAQMD (2017a), if a project’s emissions exceed the <br />district’s identified significance thresholds, the impact on air quality would be cumulatively <br />considerable. As discussed in checklist item b) above, the project’s construction and <br />operational emissions would be below the BAAQMD thresholds. Therefore, the project would not result in a cumulatively considerable net increase of criteria pollutants and this <br />impact would be less than cumulatively considerable. <br />d) Less Than Significant Impact with Mitigation Incorporated. <br />Short-Term Construction Toxic Air Contaminants <br />The project site is adjacent to residential neighborhoods and a school. Project construction would generate diesel PM emissions from the use of off-road diesel equipment required for <br />demolition, site grading, excavation, and other construction activities. Diesel PM is the <br />primary TAC that would be emitted during construction. Health-related risks associated with diesel-exhaust emissions are primarily linked to long-term exposure and the associated <br />risk of contracting cancer. The amount to which the receptors could be exposed, which is <br />a function of concentration and duration of exposure, is the primary factor used to <br />determine health risk.