Planning Commission Agenda Packet 09092026

City of Pleasanton—Additional Housing Sites Rezonings Project Addendum CEQA Guidelines Section 15164 Addendum 64 e) Lead Agency Determined Tribal Cultural Resources Would the project: Cause a substantial adverse change in the significance of a Tribal Cultural Resource, defined in Public Resources Code Section 21074 as either a site, feature, place, cultural landscape that is geographically defined in terms of the size and scope of the landscape, sacred place, or object with cultural value to a California Native American Tribe, and that is a resource determined by the lead agency, in its discretion and supported by substantial evidence, to be significant pursuant to criteria set forth in subdivision (c) of Public Resources Code Section 5024.1? Summary of Prior FEIR The current CEQA Guidelines Appendix G defines a TCR as a site, feature, place, cultural landscape, sacred place, or object with cultural value to a California Native American Tribe that is either listed in, eligible for listing in, or determined significant under the California Register or local criteria. The Prior FEIR predates the formal inclusion of TCRs in CEQA Guidelines Appendix G; therefore, it did not include a stand-alone TCRs checklist section. Instead, the Prior FEIR addressed TCRs within the broader discussion of prehistoric and Native American cultural resources. The Prior FEIR found that the Planning Area contains prehistoric resources associated with Native American use, including villages, campsites, burial areas, and ethnographic resources, many of which may remain undiscovered in subsurface contexts. These resources would meet the modern definition of TCRs, where they hold cultural value to tribes. The Prior FEIR determined that future development under the General Plan could result in ground disturbance that may affect both known and previously unidentified resources associated with Native American tribes. As reflected in more recent CEQA practice, such impacts are typically considered potentially significant because ground disturbance could alter or destroy resources that qualify as TCRs. However, the Prior FEIR also explained that a combination of federal, State, and local regulatory requirements, along with General Plan policies and programs, would reduce these impacts. These protections include requirements to identify and evaluate cultural resources, stop work if resources are discovered, and implement appropriate mitigation in consultation with qualified professionals. The Prior FEIR concluded that impacts would be less than significant.