3_Exhibit C_ADDENDUM ONLY - Laserfiche WebLink

City of Pleasanton—Stoneridge Mall Residential Project CEQA Checklist Section 15183 Checklist/15164 Addendum 96 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 Environmental Setting The project site gently slopes in the east-northeast direction, with an approximate elevation of 349 feet above mean sea level.37 According to the General Plan Public Safety Element, active faults in or near the Pleasanton Planning Area are the Calaveras, Verona, Concord-Green Valley, Greenville, Hayward-Rodgers Creek, Mount Diablo, San Gregorio, and San Andreas faults.38 The project site is located in an area susceptible to severe to violent intensity of peak ground shaking during earthquakes.39 The Calaveras and Verona Faults are the nearest faults designated as Alquist-Priolo Earthquake Fault Zones; however, these faults do not traverse the project site.40 The project site contains soils that are classified as Yolo loam, 0 to 6 percent slopes.41 Terracon Consultants (Terracon) conducted a Geotechnical Engineering Report for the project site (Appendix E). Kenneth L. Finger, PhD, conducted a paleontological records search on the University of California Museum of Paleontology (UCMP) database for the project site (Appendix E).42 Findings a) Earthquake Hazards i) Fault Rupture Prior EIR Conclusions The Prior EIR concluded that, although the Calaveras fault and its associated Alquist-Priolo Earthquake Fault Zone intersects the city limits along the western boundary of the City, it is more than a mile from any of the Housing Element’s potential sites for rezoning. Therefore, the Prior EIR determined that the risk of ground rupture in the area is low. Furthermore, the Prior EIR found that, under the Earthquake Hazards Reduction Act, the Alquist-Priolo Earthquake Fault Zoning Act, and under Programs 1.2 and 1.3 of Policy 1 of the Public Safety Element of the General Plan, construction of habitable structures within at least 50 feet of a fault trace and within 100 feet of the most likely fault trace is prohibited. The Prior EIR also found that Goal 1, Policies 1 and 2 of the General Plan Public Safety Element provide additional strategies for reducing the risk of fault rupture to life and property. These include requirements for seismic investigation to more accurately locate fault trace locations by qualified engineers prior to construction. It was determined that these requirements would be implemented by any future individual development projects on potential sites for rezoning. 37 Apex. 2022. Phase I Environmental Site Assessment conducted on Southeast Parking Lot on Stoneridge Mall Road. January 12. 38 City of Pleasanton. 2009. Pleasanton General Plan 2005-2025. 5. Public Safety Element. July 21. 39 City of Pleasanton. 2009. Pleasanton General Plan 2005-2025. 5. Public Safety Element. Figure 5-3 Relative Intensity of Ground Shaking. July 21. 40 City of Pleasanton. 2009. Pleasanton General Plan 2005-2025. 5. Public Safety Element. July 21. 41 United States Department of Agriculture (USDA) Natural Resources Conservation Service. 2019. Web Soil Survey (WSS). Website: https://websoilsurvey.sc.egov.usda.gov/App/HomePage.htm. Accessed November 8, 2022. 42 Kenneth L. Finger, PhD. 2022. Paleontological Records Search: Stoneridge Mall Residential Project (2148.0017), City of Pleasanton, Alameda County. October 12.