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Section 3.8 Hydrology and Water Resources California High-Speed Rail Authority November 2017 Fresno to Bakersfield Section Page | 3.8-1 Draft Supplemental EIR/EIS 3.8 Hydrology and Water Resources This section describes the regulatory setting and the affected environment for hydrology and water resources, the impacts on hydrology and water resources that would result from implementation of the Fresno to Bakersfield Locally Generated Alternative (F-B LGA), and mitigation measures applicable to the F-B LGA that would reduce these impacts. Within the context of hydrology and water resources, the F-B LGA is also compared to the complementary portion of the Preferred Alternative that was identified in the Fresno to Bakersfield Section Final Environmental Impact Report/Environmental Impact Statement (EIR/EIS). As discussed in Section 1.1.3 of this Draft Supplemental EIR/EIS, the complementary portion of the Preferred Alternative consists of the portion of the BNSF Alternative from Poplar Avenue to Hageman Road and the Bakersfield Hybrid from Hageman Road to Oswell Street (further referenced as the “May 2014 Project” in this Draft Supplemental EIR/EIS). Since the Fresno to Bakersfield Section Final EIR/EIS does not evaluate the May 2014 Project as a discrete subsection of the Fresno to Bakersfield Project (as it did for example for the Allensworth Bypass), affected environment and impact summary discussion included in this section for the May 2014 Project has been extrapolated from the available information contained within the Fresno to Bakersfield Section Final EIR/EIS. This section includes a range of topics related to water resources, including surface water hydrology, water quality, groundwater, and floodplains. The information in this section is based on the supporting documents prepared for the preliminary design, including the following: • Draft Stormwater Management Report (California High-Speed Rail Authority [Authority] 2016a) • Draft Floodplain Impact Report (Authority 2016b) • Draft Preliminary Engineering for Project Definition Hydrology, Hydraulics, and Drainage Report (Authority 2016c) 3.8.1 Regulatory Setting Federal, state, and local laws, regulations, orders, or plans relevant to hydrology and water resources affected by the project are presented in Sections 3.8.1.1, 3.8.1.2, and 3.8.1.3. National Environmental Policy Act (NEPA) and California Environmental Quality Act (CEQA) requirements for assessment and disclosure of environmental impacts are described in Section 3.1, Introduction, and are, therefore, not restated for each resource section of the chapter. 3.8.1.1 Federal The following federal regulations would be applicable to the F-B LGA. These regulations are discussed in further detail in Section 3.8.2.1 of the Fresno to Bakersfield Section Final EIR/ EIS (pages 3.8-1 through 3.8-3). • Clean Water Act (CWA; 33 United States Code [U.S.C.] § 1251 et seq.) • Permit for Fill Material in Waters and Wetlands (Section 404) • National Pollutant Discharge Elimination System Program (NPDES) (Section 402) • Clean Water Quality Certification (Section 401) • Water Quality Impairments (Section 303[d]) • Safe Drinking Water Act of 1974 (42 U.S.C. § 300 et seq.) • National Flood Insurance Act (42 U.S.C. § 4001 et seq.) • Floodplain Management and Protection (United States Department of Transportation Order 5650.2) and Flood Disaster Protection Act (42 U.S.C. Sections 4001–4128) The following federal regulation was included in the Fresno to Bakersfield Section Final EIR/EIS but has since been updated:
