Welcome to the State of California 

Selected Drinking Water Program Publications

Last Update: March 27, 2013

Approved Backflow Prevention Devices List

Those seeking to acquire the list of approved backflow prevention devices should call the Drinking Water Program at (916) 449-5600 and request a copy of the list [or the portion needed -- the list is by size of device, so if you’re only looking for a 4-inch reduced pressure (RP) backflow prevention device, for example, only a page or two may be needed].

  • The list will only be provided via fax or US mail (no electronic copies will be provided).
  • Copies will be provided only to regulated entities and consultants working in California.
  • There is a limit of one per customer.

Capacity Development

Compliance

Cryptosporidium

  • Cryptosporidium Action Plan (1995) (PDF)Opens in new window. NOTE:  Some of the information in this document may be only of historical interest.  Since 1995, federal rules have been adopted to address Cryptosporidium [e.g., the Interim Enhanced Surface Water Treatment Rule (ESWTR), Long Term 1 ESWTR, and Long Term 2 ESWTR].

Extremely Impaired Sources

Fluoridation

Point of Use Treatment

Operator Certification

Recreational Use of Drinking Water Reservoirs

Safe Drinking Water Plan

Technologies

Others

 
 
Last modified on: 3/27/2013 11:06 AM