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Environmental Checklist <br />Air Quality <br /> <br />Draft Initial Study – Mitigated Negative Declaration 39 <br />Table 11 Summary of Cumulative Health Impacts at MIR during Construction <br />Emissions Source <br />Distance from <br />MIR (feet) <br />Cancer Risk <br />(per million) <br />Chronic <br />Non-Cancer <br />Hazard Index <br />TAC Concentration <br />(micrograms per <br />cubic meter) <br />Proposed Project <br />Project construction Diesel <br />construction <br />equipment <br />500 7.29 <0.01 0.02 <br />Roadways <br />Existing Local Roadway Network – 15.3 ND 0.04 <br />Freeways <br />Existing Freeways >1,000 20.32 ND 0.33 <br />Stationary Sources <br />The Garage Body Shop <br />(ID 11632) <br />ND 740 ND ND ND <br />Rodgers Trucking <br />(ID 111710) <br />Gas Dispensing <br />Facility <br />570 <0.01 0 0 <br />City of San Leandro <br />(ID 106590) <br />Gas Dispensing <br />Facility <br />140 0.59 0 0 <br />Rail <br />Existing Rail Line 10 12.28 ND 0.02 <br />Cumulative Health Risks <br />Cumulative Maximum with project DPM Emissions 42.01 <0.01 0.41 <br />Significance Threshold 100 10 0.8 <br />Threshold Exceeded? No No No <br />DPM= diesel particulate matter <br />MIR = Maximally Impacted Receptor <br />ND = no data <br />Source: updated emissions modeling is included at the end of Appendix B <br />As shown above, the cumulative impacts from project construction and existing sources of TACs <br />would be less than BAAQMD cumulative thresholds of significance. Therefore, the proposed project <br />would not be cumulatively considerable or result in a significant health risk impact. <br />Operational Toxic Air Pollutants <br />The proposed project would include operation of a warehouse, which would not include land uses <br />that could result in substantial on-site TAC sources during operation such as metal smelting or <br />refining operations. The proposed project would not include use of stationary source equipment <br />(e.g., back-up generators, fire pumps), and any stationary source equipment which would be greater <br />than 50 horsepower that would require permitting through the BAAQMD to be installed and <br />operated. Compliance with mandatory permitting requirements would ensure that permitted <br />source would not have a significant impact related to health risk impacts. <br />The proposed project would result in approximately 123 daily truck trips (Appendix C), which was <br />incorporated into operational air quality modeling. As described under threshold (b), operational <br />emissions would not exceed applicable thresholds; therefore, vehicle activities associated with <br />project operation are not anticipated to result in a substantial source of TACs.