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• • Draft Supplemental Environmental Impact Report Page IV.D-29 • Forward Inc. Landfill 2018 Revised Project • The purchase of the verifiable GHG credits would reduce the impact to a level that is less than • significant. • Impact D.S. The project would contribute to a cumulative air quality impact in the project • area (Revises 2013 EIR Impact D.6.). • According to the SJVAPCD GAMAQI, cumulative impacts should be assessed for ozone, PM10, CO, and TAC. • • Ozone impacts are the result of the cumulative emissions from numerous sources in the region • and transport from outside the region. Ozone impacts are assessed based on the emissions of • NO,and VOC (ozone precursors). The proposed project would have a less than significant impact on ozone impacts (after mitigation). However, cumulative projects within the project • vicinity would potentially result in a significant impact for ozone. The residual emissions from , the project (emissions after mitigation and emissions from the extended years of landfill • operations, and increased daily acceptance rate [above existing actual emissions], as a result of the project) would contribute to the overall ozone impact in the region. • • PM10 impacts are assessed by determining exposure to sensitive receptors near the project site • from earth disturbing activities from the current project and any nearby projects that may occur • at the same time. According to SJVAPCD GAMAQI, if the level of earth disturbing activity may cause an adverse impact, enhanced dust control measures should be included to reduce the • impact to less than significant levels. Thus, with Mitigation Measure D.2a. and D.2b., the • impacts of PM10 from the project would be less than significant. However, the project would • add to the cumulatively significant impact for particulate matter within the project vicinity. Because the project would result in PM10 emissions from traffic and operations every day (due • to the extended years of landfill operations as a result of the project), the project contribution would be cumulatively considerable. • In recent years, CO measurements are well below AAQS due to the retirement of older • polluting vehicles, less emissions from new vehicles, and improvements in fuels. As a result, no future violations of the CO standard are anticipated from the project and any cumulative • project in the vicinity. The cumulative CO impact would be less than significant. • TAC emissions were found to be well below the SJVAPCD thresholds for incremental cancer • risk and non-carcinogenic acute and chronic risks (see Section IV.E., Public Health and Safety, • Impact E.8.). Thus, the TAC emissions would not have a cumulatively considerable • contribution to overall TAC emissions in the region. • As determined in Impact DA., cumulative GHG emissions would be a significant impact prior • to mitigation. • With the incorporation of Mitigation Measures D.1., D.2a., D.2b., and DA., the individual project impacts would be less than significant. Nevertheless, the cumulative impact to air quality (ozone precursors and PM10) from the proposed project would be significant. • • • • •