RES 211231 Exhibit A - Laserfiche WebLink

Environmental Checklist and City of Pleasanton–10x Genomics Project Environmental Evaluation Initial Study/Mitigated Negative Declaration 58 FirstCarbon Solutions Https://adecinnovations.sharepoint.com/sites/PublicationsSite/Shared Documents/Publications/Client (PN-JN)/2148/21480024/ISMND/wp/21480024 10x Genomics Project Full Screencheck ISMND.docx Northwest Information Center A records search and literature review were conducted on January 13, 2021, at the NWIC, located at Sonoma State University at Rohnert Park, for the project site and a 0.5-mile radius surrounding it. The purpose of this review was to access existing cultural resource survey reports, archaeological site records, historic aerial photographs, and historic maps and evaluate whether any previously documented prehistoric or historic archaeological sites, architectural resources, cultural landscapes, or other resources exist within or near the project site. The results of the records search indicate that one historic-era resource (P-01-011808) has been recorded within the 0.5-mile search radius, however, no resources were recorded within the project boundary. In addition, 24 area-specific survey reports are on file with the NWIC for the project site and its 0.5-mile search radius. Reports S-32780 and S-47534 address portions of the project site, indicating that it has previously been surveyed for cultural resources. A records search map identifying the project boundaries and a 0.5-mile search radius along with relevant non-confidential records search results can be found in Appendix C-1. Pedestrian Survey/Architectural and Historic Resources Assessment On February 5, 2021, FCS Senior Archaeologist, Dana Douglas DePietro, PhD, conducted a pedestrian survey for unrecorded cultural resources within the fully-developed shopping center situated at the project site, which consisted at the time of the site visit of approximately 10 connected retail buildings, associated parking lots and infrastructure, and landscaping elements.34 The survey began in the southwest portion of the project site at the corner of Springdale Avenue and Stoneridge Drive and moved clockwise around the project site. Given that the project site is almost entirely hardscaped, standard transects spaced at approximately 5-meter intervals were replaced with a direct focus on the build environment and observable soils in landscaping elements that surround the site. Visibility of soils in these areas was moderate (30-50 percent) and consisted of medium brown loam interspersed with gravel and small stones (3-5 centimeters) composed of schist and quartz. It appears these soils are highly disturbed and may have been imported from off-site. Survey conditions were documented using digital photographs and field notes. During the survey, Dr. DePietro examined all areas of the exposed ground surface for prehistoric artifacts (e.g., fire-affected rock, milling tools, flaked stone tools, tool-making debris, ceramics), soil discoloration and depressions that might indicate the presence of a cultural midden, faunal and human osteological remains, and features indicative of the former presence of structures or buildings (e.g., postholes, standing exterior walls, foundations) or historic debris (e.g., glass, metal, ceramics). At no point were any historic or prehistoric cultural resources observed within the project site. Survey photographs may be found in Appendix C.2. 34 Since the time of the pedestrian survey, the City issued a permit for demolition of all existing buildings. Demolition of the buildings occurred in Spring 2021. All buildings and structures were determined to have been built between the years 1979 and 1982, making them less than 45 years in age. Properties less than 45 years in age are typically ineligible for the NRHP, CRHR, or at the local level, and thus do not constitute potential historic resources under CEQA.