Agmt16 David J. Powers & Associates, Inc.

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each phase of development. Construction period emission rates will be based on project-specific information. Dispersion modeling would be conducted with EPA's AERMOD model and hourly meteorological data from the most representative monitoring station. The cancer risks associated with modeled construction-period diesel particulate matter concentrations will be computed following the latest BAAQMD risk management policy guidance. The risks will be compared against BAAQMD CEQA thresholds (i.e., cancer risk of 10 in one million, non-cancer hazards and PM2.5 concentration). In addition, screening data obtained from BAAQMD will be used to predict cumulative community risk impacts. Mitigation measures that represent "Best Management Practices" to control dust or particulate matter emissions will be identified. In addition, other measures that may be necessary to reduce construction exhaust emissions or cancer risks will be identified. The EIR will address greenhouse gas (GHG) emissions qualitatively by discussing the project's consistency with the City's Climate Action Plan and the inclusion of any proposed Green Building measures. Noise: The EIR will evaluate the noise generated by the proposed project based on an assessment to be completed by Illingworth & Rodkin. The analysis will summarize the existing ambient noise levels based on a noise monitoring survey to be completed at the project site. Based on the estimated automobile trips generated by the project, use of the parking structure, and any mechanical equipment (such as generators) that would be on-site, future ambient noise levels will be calculated. The potential for operation of the project to impact nearby sensitive receptors will be assessed based on the future noise levels. Mitigation measures will be identified to lessen or avoid impacts consistent with CEQA standards and the City's noise standards. The EIR will also address potential noise and vibration impacts to nearby sensitive receptors during construction. Mitigations measures will be identified to lessen or avoid impacts consistent with CEQA standards and the City's municipal code. Hazardous Materials: Due to the location of the project site in a primarily residential area, it is unlikely that off-site contamination has impacted the project site. The EIR will evaluate the potential for hazardous materials contamination on-site based on an environmental records search conducted by Environmental Data Resources, Inc., under contract to DJP&A. The evaluation will include a government database records search, including radius maps of current and former hazardous material locations. Based on this analysis, appropriate mitigations measures will be identified to lessen or avoid impacts consistent with CEQA standards. Other Required Technical Work Water Supply Assessment There are no specific thresholds established by Senate Bill 610 (SB 610) for community center projects. SB 610 does, however, state that any project that would equal or exceed the water demand of a 500 unit housing development would require a water supply assessment. Based on our preliminary assessment, the proposed project's net increase in water usage would use less that the water usage of a 500-unit housing project. Therefore, no water supply assessment is proposed. This conclusion will be confirmed and documented in the EIR by extrapolating the project's demand from the water usage at the existing facilities. ATTY/AGR/2016.258/DAVID J. POWERS & ASSOCIATES, INC. REV: 09-15-16 VR Page 11 of 16