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Administrative Draft Environmental Impact Report Gill Medical Center Project to the proposed Project. While this would result in a slight reduction for potential impacts to biological resources, because both sites have similar existing conditions, the same sensitive species mitigation measure are expected to apply at the alternative site. In summary, the only expected biological advantage of development at the alternative site would be the slight reduction in construction footprint resulting from elimination of onsite utilities.Therefore, Alternative 4 would only have a slight decrease in biological impact compared to the proposed Project. 6.3.6 Cultural Resources 6.3.6.1 Alternative 1: No Project Alternative According to the draft EIR, no Historic or Cultural Resources were identified within or immediately adjacent to the Project site, however ground disturbing activities could result in the unanticipated discovery of historic resources or prehistoric archaeological sites.The draft EIR finds that with implementation of Mitigation Measures 4-1a and 4.7-3a, Project impacts to unknown historic and/or cultural resources would be less than significant with mitigation incorporated. Under the No Project Alternative, none of the proposed Project construction impacts that require the above mitigation would occur. Therefore Alternative 1 is superior to the proposed Project for the issue of potential impacts to unknown historic and cultural resources. 6.3.6.2 Alternative 2: Reduced Project— Phase 1 Hospital Only The proposed Phase 1 development area comprises 12.5 acres of the 42.4-acre Project site. This equates to an approximately 62 percent decrease in land development compared to the proposed Project with a corresponding reduction in potential impacts to unknown historic and cultural resources. Therefore Alternative 2 is moderately superior to the proposed Project for the issue of potential impacts to unknown historic and cultural resources. 6.3.6.3 Alternative 3: Connect to Public Utilities - Water, Wastewater and Storm Water Under this alternative, the onsite areas reserved for water, wastewater and storm water utility construction would no longer be required and the Project development footprint could be reduced accordingly, benefiting potential impacts to unknown historic and cultural resources. As shown on Figure 6-2, all pipeline extensions required to connect the Project site with the nearest available water, wastewater and storm water utilities would occur within existing road right-of-way. Because trenching for pipeline extension could extend below previous grading conducted for road base construction, implementation of Alternative 3 would result in a moderate increase in potential impacts to unknown historic and cultural resources. While implementation of Cultural Resources Mitigation Measures 4.7-1 a and 4.7-3a could be applied during offsite utility construction, due to the length (and potentially depth for wastewater pipelines) of required trenching, a slight increase in potential for impacts to buried historic and/or cultural resources can be expected. Therefore, Alternative 3 would result in a slight increase in potential impacts to unknown historic and cultural resources and the proposed Project is considered superior for this issue. Alternatives 6-14 October 2021