Welcome to the State of California 

Public Drinking Water Systems

The Drinking Water Program (DWP) regulates public water systems; oversees water recycling projects; permits water treatment devices; certifies drinking water treatment and distribution operators; supports and promotes water system security; provides support for small water systems and for improving technical, managerial, and financial (TMF) capacity; provides funding opportunities for water system improvements.  For more about DWP activities, click on a link below. 

Private domestic wells are not regulated by DWP; the State Water Resources Control Board has information pertinent to private domestic well water quality.  The Department of Public Health also has some water-related programs; for those, click here

Permits for Herbicides to Control Aquatic Plants (SWRCB)
US EPA's Public Drinking Water Systems Programs
Last modified on: 7/1/2014 4:38 PM