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Soil Investigations for Data Collection in the Delta Initial Study/Proposed Mitigated Negative Declaration 2 • California Department of Fish and Wildlife (CDFW), Fish and Game Code section 1603 Streambed Alteration Agreement • US Army Corps of Engineers (USACE), Clean Water Act, Section 404 – Nationwide Permit 6 As a condition of working under the Nationwide Permit the following Federal regulations must be met by the USACE: o State Office of Historic Preservation, National Historic Preservation Act, Section 106, Letter of Concurrence o US Fish and Wildlife Service (USFWS) and National Marine Fisheries Service (NMFS) Endangered Species Act, section 7, Biological Opinions or letters of concurrence • State Water Resources Control Board (SWB), Clean Water Act, Section 401, General Water Quality Certification and Order for the 2017 Nationwide Permits • State Lands Commission (SLC) 1979 Memorandum of Understanding between DWR and SLC providing for the utilization by DWR of State-owned sovereign lands under the jurisdiction of the CSLC for the Central Valley Project and the State Water Resources development system • Various encroachment permits, as needed 1.3 Proposed Project Location The Proposed Project area (Study Area) spans a portion of the Sacramento – San Joaquin River Delta including portions of Alameda, Contra Costa, Sacramento, San Joaquin, Solano, and Yolo counties. The Study Area is bordered to the north by the City of West Sacramento, the south by Kelso Road, to the west by west bank of the Toe Drain and communities including Rio Vista, Oakley, and Brentwood, and to the east by Interstate 5 (Figure 1). Mapped locations are approximate, several days to several weeks prior to investigations, DWR and Delta Conveyance Design and Construction Authority (DCA) engineers, geologists, environmental scientists, and the cultural resource team will perform a reconnaissance level site visit. The Impact Area for any given soil location is considered the soil investigation site itself and the area required for parking for various field personnel. If the team observes utility, biological, cultural, or other resource concerns within the Impact Area or associated resource buffer, the location will be shifted the minimum distance necessary to reduce the potential for utilities, biological or cultural resource impacts to a less than significant level without increasing impacts to other resources. If a suitable location cannot be determined within adjacent areas, then the soil investigation at that location will not be conducted.