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City of Pleasanton—Villages at the Quarry Project Consistency Checklist 15183 Consistency Checklist 60 of the proposed project site. The location of the MEIR and nearby sensitive receptors are shown in Appendix B. Table 3 summarizes the maximum cancer risks, PM₂﮳₅ concentrations, and HI for project-related construction activities at the MEIR. Health Risks from Project Operation Project Traffic Diesel powered vehicles are the primary concern with local traffic-generated TAC impacts. Per BAAQMD recommended risks and methodology, a road with less than 10,000 total vehicles per day is considered a low-impact source of TACs. The proposed project would generate 3,688 daily trips. The project traffic would be dispersed onto the roadway system with a majority of the trips being from light-duty vehicles (i.e., passenger automobiles). Projects with the potential to cause or contribute to increased cancer risk from traffic include those that have high numbers of diesel powered on-road trucks or use off-road diesel equipment on-site, such as warehouse distribution centers, quarries, or manufacturing facilities, and may potentially expose existing or future planned receptors to substantial cancer risk levels and/or health hazards. This is not a project of concern for mobile sources. Therefore, emissions from project traffic are considered negligible and not included within this analysis. Summary of Project-Related Health Risks at the Off-site Project MEIR The HRA was conducted utilizing the ARB’s Hot Spots Analysis and Reporting Program Version 2 (HARP2) to automatically calculate risks for the project using the California Office of Environmental Health Hazard Assessment’s (OEHHA’s) promulgated cancer potency and REL. HARP2 is the recommended model for calculating and presenting HRA results because it follows the BAAQMD’s risk assessment guidance methodology and is consistent with the BAAQMD Regulation 2-5. The American Meteorological Society/Environmental Protection Agency Regulatory Model (AERMOD) was run with project emission rates to directly calculate potential DPM and PM2.5 concentrations, and the Health Risk Assessment Stand-alone Tool (RAST) version of HARP2 was also used. The HRA intake methodology addresses children’s greater sensitivity and health impacts from early exposure to carcinogenic compounds. The chemical intake or dose describing the frequency and duration of the exposure is estimated using receptor’s breathing rates, exposure duration, and exposure frequency. The calculations include the use of age-specific weighting factors, breathing rates, fraction of time at home, and reduced