California Water Balance

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California Water Balance
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Water Reserved for the Environment
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Hydroelectric Power Generation

• Hydropower facilities represent about 25 of
  Californias electrical power generation capacity
• On average, in-state hydropower provides about
  15 of Californias electricity

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Water Supply Infrastructure

• Reflecting the disparity in location of water
  needs and available runoff, extensive system of
  federal, state, and local water projects has been
  constructed to move water to where it is needed

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Federal Central Valley Project

• Largest single water project in California
• Operated by U.S. Bureau of Reclamation
• 18 federal reservoirs plus 4 state-federal
  reservoirs, 12 MAF total storage capacity
• Largest generator of electrical power in
  California

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Sample CVP Facilities
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The State Water Project

• Californias 2nd-largest water project
• Operated by DWR
• 20 reservoirs, 660 miles of aqueduct, 26 power
  pumping plants
• 4th-largest generator of electrical power in
  California

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Sample SWP Facilities
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Local Agency Water Projects

• Include wide variety of canals, reservoirs,
  groundwater storage projects
• Also include water recycling projects and a small
  desalination projects

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Sample Local Agency Facilities
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Flood Control Infrastructure

• Federal, state, and some local agencies have
  constructed large-scale flood control projects
• Major Central Valley Flood Control Project
  features include dedicated storage in numerous
  reservoirs, and 1,600 miles of project levees

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Water Management Framework

• Major federal agencies USBR and USACE (provide
  water supply flood control), USEPA (regulates
  water quality)
• Major state agencies DWR (provides water supply
  flood control), SWRCB (regulates water quality
  water rights)
• Local agencies provide water supply, flood
  control, water treatment, wastewater treatment

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Key DWR Responsibilities

• Operate State Water Project (provides 3 MAF
  annually)
• Operate maintain flood control facilities
• Administer state dam safety program (about 1200
  regulated dams)
• Plan for Californias future water supply needs

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Estimated Future Water Needs
Net changes statewide in average-year water
demand for baseline scenarios by sector, 20002030
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Key SWRCB Responsibilities

• Administer water rights permitting program
• Administer water quality planning program
• Through Regional Boards, administer water quality
  permitting program to assure conformance with
  water quality plans

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