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City of Pleasanton—Villages at the Quarry Project <br />15183 Consistency Checklist Consistency Checklist <br /> <br /> <br /> 63 <br />Source Cancer Risk <br />(per million) <br />Annual <br />PM2.5 <br />(µg/m³) <br />Hazard <br />Index <br />Notes: <br />µg/m³ = micrograms per cubic meter <br />BAAQMD = Bay Area Air Quality Management District <br />MEIR = Maximally Exposed Individual Resident <br />MEIW = Maximally Exposed Individual Worker <br />PM2.5 = particulate matter less than 2.5 microns in diameter <br /> <br />Cumulative Health Risks of all TAC Sources at the Off-site Project MEIR <br />Cumulative health risk assessments look at all substantial sources of TACs <br />located within 1,000 feet of a project site (i.e., influence area) that can affect <br />sensitive receptors. These sources include rail lines, freeways or highways, <br />busy surface streets, and stationary sources identified by BAAQMD. <br />A review of BAAQMD’s stationary source Geographic Information Systems <br />(GIS) map tool identified six existing stationary sources of TACs with the <br />potential to affect the project MEIR. Appendix B shows the location of the <br />sources. Cumulative health risk impacts from these sources upon the MEIR are <br />reported in Table 4. <br />Summary of Cumulative Health Risk Impact at Construction MEIR <br />Table 4 reports the cumulative community risk impacts at the sensitive <br />receptors most affected by construction (i.e., the MEIR) from project <br />construction, and nearby roads, rail lines and stationary sources. The project <br />would not have an exceedance with respect to health risk caused by <br />project construction activities since the cancer risk, annual PM2.5 <br />concentration, and HI do not exceed the BAAQMD single source and <br />cumulative-source thresholds. Therefore, the impacts would be less than <br />significant. <br />Table 4: Impacts from Combined Sources at Project MEIR <br />Source <br />Cancer Risk <br />(per million) <br />Annual PM2.5 <br />(µg/m³) <br />Hazard <br />Index <br />Cumulative Impacts <br />MEIR Project Construction Unmitigated 2.57 0.03 0.00 <br />Roadways 6.37 0.27 0.03 <br />Railroad and Railyards 0.96 0.00 0.00 <br />Facility ID: 14553, Generator 0.06 0.00 0.00