State and Regional Water Boards

• State Water Resources Control Board
  
  
• The Nine Regional Water Quality Control Boards in California - Fact Sheet (.pdf)
  (View the Regional Boards' websites. See the map below.)
  
  
• State and Regional Water Boards Brochure (.pdf)
  
  
• California Regional Water Quality Control Boards - A list of the Regional Boards, their addresses, main telephone and fax numbers.


• Regional Water Quality Control Boards
--Select-- North Coast - Region 1 San Francisco Bay - Region 2 Central Coast - Region 3 Los Angeles - Region 4 Central Valley - Region 5 Lahontan - Region 6 Colorado River - Region 7 Santa Ana - Region 8 San Diego - Region 9

To find the Regional Water Board for a particular location, click on the map or enter a street address:
(Example: "123 Main Street, Sacramento, CA")

Geospatial data

The Regional Water Quality Control Board jurisdictional boundaries (1:24000 scale) are available in the following formats:

• Shapefile: http://gispublic.waterboards.ca.gov/pub/rwqcb_bound_shp.zip
• GIS Service REST endpoint: http://gispublic.waterboards.ca.gov/ArcGIS/rest/services/Administrative/Regional_Board_Boundaries/MapServer