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4 Environmental Analysis 4.10 Hydrology/Water Quality oo The discharge does not contain toxic constituents in toxic amounts or (other) significant quantities of pollutants; oo The discharge is monitored and meets the applicable numeric action levels; and oo The discharger reports the sampling information in the SWPPP Annual Report. Federal Emergency Management Agency FEMA determines flood elevations and floodplain boundaries and distributes the flood insurance rate maps used in the National Flood Insurance Program. These maps identify the locations of special flood hazard areas, including 100-year floodplains (i.e., areas that would have a 1 percent annual chance of flooding). Federal regulations governing development in a floodplain are set forth in Title 44, Part 60, of the Code of Federal Regulations. Those regulations enable FEMA to require municipalities participating in the National Flood Insurance Program to adopt certain flood hazard reduction standards for construction and development in 100-year floodplains. 4.10.2.2 State California Fish and Game Code Section 1602 The California Fish and Game Code, specifically under Section 1602, protects the natural flow, bed, channel, and bank of any river, stream, or lake under the jurisdiction of the California Department of Fish and Wildlife (CDFW). CDFW jurisdiction over lakes and streams encompasses the top of bank or edge of riparian vegetation (as determined by the edge of a "dripline"), whichever is farther (CDFW 1994). Applicants must submit a notification of lake or streambed alteration to the CDFW for any projects affecting the bed, bank, or flow of water considered to be under CDFW jurisdiction. The CDFW may issue a Lake and Streambed Alteration Agreement if it determines that the activity may substantially adversely affect fish and wildlife resources. Porter-Cologne Water Quality Control Act The Porter-Cologne Water Quality Control Act gives the State Water Resources Control Board authority over waters of the State and water quality. The RWQCBs have local and regional authority. The area of the Project site is under the jurisdiction of the Central Valley RWQCB. The Central Valley RWQCB prepares and periodically updates the Basin Plan. Pursuant to the CWA NPDES program, the Porter-Cologne Water Quality Control Act also delegates the authority to the RWQCBs to issue NPDES permits. If a proposed project or portion of a proposed project does not require a federal permit but does involve dredge or fill activities that may result in a discharge to waters of the State, the RWQCB has the option to regulate the dredge and fill activity under its state authority in the form of Waste Discharge Requirements. Sustainable Groundwater Management Act The Sustainable Groundwater Management Act of 2014 (Water Code Section 10723) provides a framework for sustainable management of groundwater resources. In groundwater basins designated by the Department of Water Resources as medium and high priority, local public agencies and locally controlled groundwater sustainability agencies are required to develop and implement groundwater sustainability plans (GSP) or alternatives to GSPs. The Tracy Subbasin Griffith Energy Storage Project 4.10-7 Tetra Tech/SCH 2022120675 Draft Environmental Impact Report August 2023