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Visit the
Water Quality Monitoring Council's

My Water Quality

data interpretation web portal

The California Environmental Data Exchange Network (CEDEN)
is a central location to find and share information about California’s water bodies, including streams, lakes, rivers, and the coastal ocean. Many groups in California monitor water quality, aquatic habitat, and wildlife health to ensure good stewardship of our ecological resources. CEDEN aggregates this data and makes it accessible to environmental managers and the public.

For more information, a two page CEDEN Fact Sheet and eight page Information Document are available for download.

News & Highlights

Providing Data for the 303(d) List

See our new page regarding providing data to be assessed for the development of California’s Clean Water Act Section 303(d) list.

State Water Resources Control Board 1001 I Street Sacramento, CA 95814
© California Environmental Data Exchange Network (CEDEN)