Sites Reservoir Project Public Draft EIR/EIS
Total Page:16
File Type:pdf, Size:1020Kb
Appendix 7 Surface Water Quality This page intentionally left blank. Contents Appendix 7: Surface Water Quality 7A California State Water Resources Control Board Constituents of Concern of Water Bodies in the Study Area 7B Central Valley Regional Water Quality Control Board Basin Plan Criteria 7C Surface Water Quality Analysis for Electrical Conductivity at Proposed Intakes 7D Sacramento-San Joaquin Delta Modeling 7E River Temperature Modeling 7F Sites Reservoir Discharge Temperature Modeling This page intentionally left blank. Appendix 7A California State Water Resources Control Board Constituents of Concern of Water Bodies in the Study Area This page intentionally left blank. APPENDIX 7A California State Water Resources Control Board Constituents of Concern of Water Bodies in the Study Area The Regional Water Quality Control Boards (RWQCBs) have adopted, and the California State Water Resources Control Board (SWRCB) has approved, water quality control plans (basin plans) for each watershed basin in the State. The basin plans designate the beneficial uses of waters within each watershed basin, and water quality objectives designed to protect those uses pursuant to Section 303 of the Clean Water Act (CWA). The beneficial uses together with the water quality objectives that are contained in the basin plans constitute State water quality standards. Under the CWA section 303(d), the U.S. Environmental Protection Agency (USEPA) identifies and ranks water bodies for which existing pollution controls are insufficient to attain or maintain water quality standards based upon information prepared by all states, territories, and authorized Indian tribes (referred to collectively as “states” in the CWA). This list of impaired waters for each state comprises the state’s 303(d) list. Each state must establish priority rankings and develop Total Maximum Daily Load (TMDL) values for all impaired waters. TMDLs calculate the greatest pollutant load that a water body can receive and still meet water quality standards and designated beneficial uses. Section 305(b) of the CWA requires every state to submit a biennial water quality assessment of all state waters. These state-wide reports serve as the basis for USEPA’s national Water Quality Inventory Report to Congress. Each water body is assessed regarding its ability to support the most common beneficial uses: aquatic life, drinking water supply, fish consumption, non-contact recreation, shell fishing, and swimming; also known as core beneficial uses. The USEPA requires states to integrate the 303(d) and 305(b) reports. For California, this report is called the California 303(d)/305(b) Integrated Report, and is prepared by the SWRCB using Integrated Reports submitted by each RWQCB. The SWRCB and RWQCBs have identified numerous water bodies within the project area that do not comply with applicable water quality standards and either adopted or are developing TMDLs as summarized in Table 7A-1. SITES RESERVOIR PROJECT DRAFT EIR/EIS 7A-1 Appendix 7A: California State Water Resources Control Board Constituents of Concern of Water Bodies in the Study Area Table 7A-1 Constituents of Concern per the 303(d) list within the Study Area Region Waterbody Constituent of Concern TMDL Status1 Trinity and Lower Trinity Lake (was Claire Engle Lake) Mercury Under Klamath Rivers Development Trinity River HU, Lower Trinity HA; Trinity Sedimentation/Siltation, Approved: 2001 River HU, Middle HA; Trinity River HU, Temperature2, Mercury3 South Fork HA; Trinity River, Upper HA; Trinity River HU, Upper HA, Trinity River, East Fork Klamath River HU, Lower HA, Klamath Nutrients, Organic, Approved: 2010 Glen HAS Enrichment/Low Dissolved Oxygen, Water Temperature Sedimentation/Siltation Under Development Sacramento River Shasta Lake (where West Squaw Creek Acid Mine Drainage4, Under Basin Enters); Keswick Reservoir (portion Cadmium, Copper, Zinc Development downstream from Spring Creek); Spring Creek, Lower (Iron Mountain Mine to Keswick Reservoir) Shasta Lake; Whiskeytown Lake (areas Mercury Under near Oak Bottom, Brandy Creek Development Campgrounds and Whiskeytown); Clear Creek (below Whiskeytown Lake, Shasta County) Sacramento River (Keswick Dam to the Unknown Toxicity, Under 5 Delta) Chlordane6, DDT, Development Mercury7, PCBs, Dieldrin8 Big Chico Creek Mercury Under Development Black Butte Reservoir Mercury Under Development Butte Slough Diazinon Approved: 2010 Dichlorvos, Dissolved Under Oxygen, and Unknown Development Toxicity Stone Corral Creek Dissolved Oxygen Under Development East Park Reservoir Mercury Under Development Stony Creek Chlorpyrifos, Diuron, Under Sediment Toxicity, Development Unknown Toxicity, pH SITES RESERVOIR PROJECT DRAFT EIR/EIS 7A-2 Appendix 7A: California State Water Resources Control Board Constituents of Concern of Water Bodies in the Study Area Region Waterbody Constituent of Concern TMDL Status1 Colusa Basin Drain Diazinon, Malathion, Under Azinphos-methyl Development (Guthion), Group A Sacramento River Pesticides, Unknown Basin (cont’d) Toxicity, DDT, Dieldrin, E. coli, Low Dissolved Oxygen, Mercury, Carbofuran Sutter Bypass Mercury Under Development Oroville Lake; Feather River, Lower Group A Pesticides, Under (Lake Oroville Dam and Thermalito Chlorpyrifos, Unknown Development Afterbay to Confluence with Sacramento Toxicity, Mercury, PCBs River), Yuba River, Lower9 Folsom Lake; Natoma, Lake; American Mercury, Unknown Under River, Lower (Nimbus Dam to confluence Toxicity, PCBs Development with Sacramento River)10 Knights Landing Ridge Cut Boron, Dissolved Under Oxygen, Salinity Development Putah Creek Boron, Mercury Under Development Cache Creek, Lower (Clear Lake Dam to Mercury Approved: 2007 Cache Creek Settling Basin near Yolo Bypass) Boron, Unknown Under Toxicity Development Yolo Bypass – Tule Canal Boron, Escheria Under coliform, salinity Development San Joaquin River Mendota Pool; Panoche Creek (Silver Mercury,11 Selenium, Under and Tulare Basins Creek to Belmont Avenue) Sediment Toxicity12, Development Sedimentation Siltation12 Agatha Canal (Merced County); Selenium14 Approved: 2002 Grasslands Marshes; Mud Slough, North (downstream of San Luis Drain); Salt Slough (upstream from confluence with San Joaquin River)13 Chlorpyrifos Approved: 2008 Boron, Electrical Under Conductivity, Pesticides, Development Unknown Toxicity,15 Escherichia coli, Mercury, pH, Prometryn San Luis Reservoir and O'Neil Forebay Mercury Under Development Millerton Lake; San Joaquin River (Friant Selenium17, 18 Approved: 2002 16 Dam to Stanislaus River) 19 Chlorpyrifos, Diazinon Approved: 2007 SITES RESERVOIR PROJECT DRAFT EIR/EIS 7A-3 Appendix 7A: California State Water Resources Control Board Constituents of Concern of Water Bodies in the Study Area Region Waterbody Constituent of Concern TMDL Status1 See above DDE20, DDT, Group A Under Pesticides, Boron21, Development Invasive Species23, Unknown Toxicity, San Joaquin River Arsenic24, Electrical and Tulare Basins Conductivity18, 22, (cont’d) Mercury18, Water Temperature,26 alpha-BHC20, Escherichia coli18, 25 San Joaquin River (Stanislaus River to Chlorpyrifos, Electrical Approved: 2007 Delta Boundary) Conductivity DDE, DDT, Group A Under Pesticides, Mercury, Development Toxaphene, Unknown Toxicity, Diuron, Escherichia coli, Water Temperature Merced River, Lower; Tuolumne River, Diazinon, Group A Under Lower; New Melones Reservoir; Tulloch Pesticides, Chlorpyrifos, Development Reservoir; Stanislaus River, Lower27 Mercury, Water Temperature, Unknown Toxicity Cosumnes River, Lower (below Michigan Invasive Species, Under Bar; partly in Delta Waterways, eastern Escherichia coli, Development portion) Sediment Toxicity Mokelumne River, Lower (in Delta Copper, Zinc, Under Waterways, eastern portion) Chlorpyrifos, Mercury, Development Dissolved Oxygen, Unknown Toxicity Calaveras River, Lower (from Stockton Chlorpyrifos, Diazinon Approved: 2007 Diverting Canal to the San Joaquin River; partly in Delta waterways, eastern portion) Pathogens Approved: 2008 Organic Under Enrichment/Low Development Dissolved Oxygen, Mercury Kings River, Lower (Island Weir to Electrical Conductivity, Under Stinson and Empire Weirs); Kings River, Molybdenum, Development Lower (Pine Flat Reservoir to Island Toxaphene, Weir); Kaweah River (below Terminus Chlorpyrifos29, pH30, Dam, Tulare County); Kaweah River, Unknown Toxicity Lower (includes St Johns River)28 Sacramento and San Sacramento San Joaquin Delta Mercury Approved: 2011 Joaquin River Delta Dioxin compounds, Under Furan Compounds, Development Invasive Species, PCBs, Selenium, Chlordane, DDT, Dieldrin SITES RESERVOIR PROJECT DRAFT EIR/EIS 7A-4 Appendix 7A: California State Water Resources Control Board Constituents of Concern of Water Bodies in the Study Area Region Waterbody Constituent of Concern TMDL Status1 Sacramento and Delta waterways (central, eastern, Organic Approved: 2006 San Joaquin River northern, northwestern, western portion, Enrichment/Low Delta (cont’d) southern portions, export area, and Dissolved Oxygen32 Stockton Ship Channel) Chlorpyrifos31, Diazinon Approved: 2007 Pathogens,32 Mercury, Under Chlordane33, DDT, Development Dieldrin33, Group A Pesticides, Dioxin32, Electrical Conductivity34, Furan Compounds32, Invasive Species, PCBs35, Unknown Toxicity San Joaquin River at Vernalis Salinity and Boron Under Development Suisun Bay and Suisun Bay Mercury Approved: 2008 Suisun Marsh PCBs, Selenium, Under Chlordane, DDT, Development Dieldrin, Dioxin compounds, Furan Compounds, Invasive Species Suisun Marsh Wetlands