Welcome to the State of California 

Chemicals and Contaminants in Drinking Water

Last Update: July 1, 2014


Reorganization: On July 1, 2014, the Drinking Water Program moved from CDPH to the State Water Resources Control Board (SWRCB). Find out more at http://www.swrcb.ca.gov/drinkingwater/index.shtml.

Regulated Contaminants

Public Notification and Information about Contaminants

Unregulated Contaminants

Use of Extremely Impaired Sources

Treatment Technology

Sampling and Analysis

Last modified on: 7/28/2014 4:18 PM