3_Exhibit C_ADDENDUM ONLY - Laserfiche WebLink

City of Pleasanton—Stoneridge Mall Residential Project CEQA Checklist Section 15183 Checklist/15164 Addendum 132 FirstCarbon Solutions 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 were provided by the Prior EIR for sites under a Special Flood Hazard Area. However, this would not include the proposed project site; therefore, these measures are not applicable to the proposed project. In combination with goals, policies, and programs provided by the General Plan Safety Element, the Prior EIR concluded that impacts relevant to the project site would be less than significant. Analysis of Proposed Project The project site is not located in a FEMA flood hazard zone, an area with flood risks, or an area at risk of inundation from a dam breach.66, 67 The proposed project’s storm drainage system would consist of bioretention areas, inlets, underground piping, and basins that would catch runoff and deliver it to the existing City stormwater infrastructure on Stoneridge Mall Road at a reduced peak runoff rate. Impacts would continue to be less than significant, and no mitigation is necessary, consistent with the Prior EIR. There are no proposed changes, new circumstances, or new information that would cause new or more severe impacts. Therefore, 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. e) Water Quality Control or Sustainable Groundwater Management Plans Consistency Prior EIR Conclusions This checklist question did not exist when the Prior EIR was prepared. Additionally, the Prior EIR did not analyze Housing Element consistency with a Water Quality Control or Sustainable Groundwater Management Plan. However, the Prior EIR addresses various aspects of water quality control and sustainable groundwater management plans throughout its analysis of other impacts related to hydrology and water quality. The Prior EIR determined that development under the Housing Element would be subject to regulations regarding water quality and groundwater including the ACCWP NPDES Permit, the NPDES Construction General Permit, policies and programs in the General Plan, and the Pleasanton Municipal Code. Overall, the Prior EIR concluded that buildout of the Housing Element would be required to comply with the aforementioned plans prior to approval of development permits from the City. Analysis of Proposed Project The City does not have a Water Quality Control Plan or a Sustainable Groundwater Management Plan. However, as described above, the proposed project would be subject to the ACCWP NPDES Permit and would be required to prepare and implement a SWPPP in accordance with applicable federal and State requirements. The SWPPP would identify BMPs that are intended to prevent runoff during construction activity and protect water quality. Furthermore, as described above, the 66 Federal Emergency Management Agency (FEMA). 2009. FEMA’s National Flood Hazard Layer Viewer. Website: https://hazards- fema.maps.arcgis.com/apps/webappviewer/index.html?id=8b0adb51996444d4879338b5529aa9cd. Accessed November 22, 2022. 67 California Department of Water Resources (DWR). 2020. Dam Breach Inundation Map Web Publisher. Website: https://fmds.water.ca.gov/webgis/?appid=dam_prototype_v2. Accessed November 22, 2022.