Water Quality Standards & Limits

• Basin Plan
  Two Basin Plans contain the water quality standards for the Central Valley Region and implementation programs and policies to achieve these standards.

• California Toxics Rule (CTR)
  This regulation of the U.S. Environmental Agency (Title 40 of the Code of Federal Regulations, Section 131.38) promulgated water quality standards for surface waters of California.

• A Compilation of Water Quality Goals July 2008 Edition and Updates.
  This staff report contains numerical water quality limits from the literature for over eight hundred chemical constituents and water quality parameters. These limits may be used to determine whether beneficial uses of groundwater and surface water are impaired or threatened. The text of the report explains, with examples, how these limits may be used to interpret water quality standards in California. A summary of relevant statutes, regulations, plans, and policies and a list of references are included.
  
  
• Beneficial Use Protective Water Quality Limits for Components of Petroleum-Based Fuels Updated 1 April 2004, 254 KB, PDF (PDF info)
  A summary of applicable or relevant and appropriate water quality limits for petroleum fuel mixtures, constituents and additives for the protection of waters designated as municipal and domestic water supply in the Basin Plan. For more information, contact Jon Marshack by email at jmarshack@waterboards.ca.gov.