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LSA ASSOCIATES, INC. CEQA INITIAL STUDY/MITIGATED NEGATIVE DECLARATION MARCH 1011 PREDA STREET PIPE BRIDGES UPGRADE SAN LEANDRO. CALIFORNIA The air quality plans use the assumptions and projections of local planning agencies to determine control strategies for regional compliance status. Since the plans are based on local General Plans. projects that are deemed consistent with the applicable General Plan are usually found to be consistent with the air quality plans. The proposed project is consistent with the City of San Leandro General Plan (See Section X. Land Use, response b). The BAAQMD's Bay Area CAP contains BAAQMD -wide control measures to reduce carbon monoxide and ozone precursor emissions. The proposed project does not include any significant excavation or earthwork. Both the area of ground disturbance and the amount of construction equipment operating within the project site would be limited. In addition, the proposed project would not generate a substantial number of vehicle trips that would increase regional carbon monoxide and ozone precursor emissions. Therefore, the proposed project is not expected to conflict with, or obstruct implementation of relevant air quality plans. b) Violate any air quality standard or contribute substantially to an existing or projected air quality violation? Less Than Significant with Mitigation Incorporated. Air pollutant emissions associated with the proposed project would occur over the short term in association with construction activities such as vehicle /equipment use. No long -term emissions would result from implementation of the proposed project. Construction activities would generate exhaust emissions from vehicle /equipment and fugitive particulate matter emissions that would affect local air quality and contribute to an existing air quality violation. Construction activities would also be a source of organic gas emissions. Construction dust could affect local air quality during implementation of the project. The effects of construction activities would be increased dustfall and locally elevated levels of PM downwind of construction activity. Implementations of Mitigation Measure AIR- 1would reduce potential impacts to less than significant levels. Mitigation Measure AIR - 1: Consistent with guidance from the BAAQMD, the following measures shall be required of construction contracts and specifications for the project: • Water all active construction areas at least twice daily and more often during windy periods; active areas adjacent to existing land uses shall be kept damp at all times, or shall be treated with non -toxic stabilizers or dust palliatives; • Cover all trucks hauling soil, sand, and other loose materials or require all trucks to maintain at least 2 feet of freeboard; • Pave, apply water three times daily, or apply non -toxic soil stabilizers on all unpaved access roads, parking areas, and staging area at construction sites; • Sweep daily (with water sweepers) all paved access roads, parking areas, and staging areas at construction sites; water sweepers shall vacuum up excess water to avoid runoff - related impacts to water quality; P:1EGI080110EQAV'redaFINAL IS•MND.doc 10328/11) 16