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ARROYO LAGO RESIDENTIAL PROJECT ADDENDUM 86 FCS Https://adecinnovations.sharepoint.com/sites/PublicationsSite/Shared Documents/Publications/Client (PN-JN)/2148/21480036/Addendum/21480036 Arroyo Lago Residential Project Addendum.docx Proposed Project Analysis and Conclusion The proposed project would be constructed in the same location as the land studied in the Prior FEIR, which determined that special-status plant species were absent from the project site and, accordingly, found there were no impacts on special-status or rare plant species. The proposed project would have slightly fewer units than the County Project and would not involve the construction and operation of the substantial off-site utility infrastructure contemplated by the County Project, other than the bioretention area and detention basin. Therefore, the proposed project would result in less overall soil disturbance due to the updated project design. As such, impacts related to habitats of special-status plant and animal species would be slightly less than those of the County Project. With respect to special-status wildlife, even though the proposed project would result in a reduced amount of ground disturbance due to the reduction of proposed dwelling units and off-site infrastructure, the proposed project would still be located in an area that supports habitat for special- status nesting birds and burrowing owls. As such, the proposed project would be required to implement MM BIO-1a and MM BIO-1b, which require protocol-level burrowing owl surveys, pre- construction nesting bird surveys, and avoidance of direct and indirect impacts on nests. With the implementation of these mitigation measures, impacts on special-status species would be less than significant. Therefore, the proposed project would not introduce new significant impacts or create substantially more severe significant impacts than those previously identified in the Prior FEIR. No additional analysis is required. b) Riparian Habitat and Sensitive Natural Communities Would the project: Have a substantial adverse effect on any riparian habitat or other sensitive natural community identified in local or regional plans, policies, and regulations or by the California Department of Fish and Wildlife or United States Fish and Wildlife Service? Prior FEIR Conclusions The Prior FEIR found that the eastern portion of the Study Area, east of El Charro Road, contains approximately 5.87 acres of Fremont poplar and mixed willow stands, as well as a drainage swale, which contains riparian habitat.24 The Prior FEIR considered the location of an approximately 0.9-acre bioretention area under two design options. Design Option A would cluster the bioretention area directly east of the WWTP and south of the recycled water storage facility. Design Option B would locate the bioretention area southwest of the agricultural irrigation fields, adjacent to the east side of El Charro Road. The Prior FEIR determined that neither Design Option A nor Design Option B is expected to have direct or indirect impacts on the potential depressional wetland feature. However, under Design Option B, the proposed project may result in indirect impacts to the adjacent drainage swale and associated riparian vegetation due to the location of the proposed bioretention area. 24 The Study Area is generally located south of Lakes I and H, and west of Cope Lake (part of the Zone 7 Water Agency Chain of Lakes), although there is a portion of the Study Area that bisects Lake I and Cope Lake. The Study Area consists of three Assessor’s Parcel Numbers (APNs)—APN 946-4634-1, 946-4634-2, and 946-1350-3-10.