3_Exhibit C_ADDENDUM ONLY - Laserfiche WebLink

City of Pleasanton—Stoneridge Mall Residential Project Section 15183 Checklist/15164 Addendum CEQA Checklist FirstCarbon Solutions 71 Https://adecinnovations.sharepoint.com/sites/PublicationsSite/Shared Documents/Publications/Client (PN-JN)/2148/21480017/Consistency Checklist/21480017 Stoneridge Mall Residential Project Checklist Addendum_Updated.docx In addition, construction-emitted pollutants would rapidly disperse from the project site. The brief exposure period presented by the proposed project is substantially less than the exposure period typically assumed for the health risk analysis. Further, MM 4.B-1 would be implemented as part of the proposed project, which requires the preparation and submittal of an AQP to the City that demonstrates BAAQMD recommended control measures will minimize risks to sensitive receptors. Therefore, impacts from exposure to construction-generated DPM would be less than significant. Operational Toxic Air Contaminants Exposure The proposed project is not a land use known to generate TACs in substantial quantities; therefore, risks to adjacent receptors from the proposed project would be less than significant. The proposed project would result in the construction of a sensitive receptor land use. In response to Prior EIR MM 4.B-4, an HRA screening was performed for the proposed project.32 The HRA screening evaluated the cumulative health risk at the project site based on BAAQMD guidelines.6 The HRA screening study identified existing and potential stationary sources, highways, major streets, and nearby roadways that are within proximity of the proposed project. The total cancer risk is 35 in 1 million, chronic hazard index (HI) is less than 0.1, and the PM2.5 concentration is 0.44 μg/m3, which are all below the BAAQMD thresholds of 100 in a million for cancer risk, 10 for chronic HI, and 0.8 μg/m3 annual average for ambient PM2.5 concentration. The cumulative health risk impacts would be below the BAAQMD cumulative thresholds of significance; thus, the cumulative health risk impacts associated with the proposed project are less than significant. Therefore, development facilitated by the Prior EIR’s General Plan Amendment and Rezonings would not expose sensitive receptors to substantial health risks from DPM and other TACs from mobile and stationary sources, producing less than significant impacts with mitigation. There are no environmental effects that are peculiar to the proposed project or the parcels on which the proposed project would be located. Impacts would be less than significant and the proposed project would not result in a new or more severe adverse impact that was not previously identified in the Prior EIR. d) Other Emissions and Odors Prior EIR Conclusions The Prior EIR concluded that the development facilitated by the then proposed General Plan Amendment and Rezonings could potentially include residential developments that expose occupants to sources of substantial odors affecting a substantial number of people. However, the analysis identified that implementation of General Plan 2005-2025 Policy 8: Minimize unpleasant odors in residential neighborhoods, and Prior EIR MM 4.B-5 would ensure the impacts are reduced to less than significant. 32 Ramboll. 2022. Health risk assessment for the proposed residential receptors at the Stoneridge Mall Residential Project, Pleasanton, California. 2022. Accessed November 1, 2022.