PFAS Program Logo

Per- and Polyfluoroalkyl Substances (PFAS)

Welcome to the Water Boards' Per- and Polyfluoroalkyl Substances (PFAS) webpage

This webpage provides a general background on PFAS, information on where PFAS data is being collected across the state, announcements for current Water Board events, links to past Water Board events, and links to other state entities implementing efforts on PFAS.

The Water Boards' PFAS Team is a group of technical and support staff within the State Water Board Divisions of Drinking Water and Water Quality, and the Regional Water Quality Control Boards. A primary objective of the Team is to provide information and data that is easily accessible and understandable.

This webpage provides a central point where information is communicated to the public regarding PFAS investigative actions conducted, and the results from those actions.

What's New!

2020 PFAS Datathon

2019 PFAS Technical Seminar
December 4-5, 2019

For questions, please send an email to; please put "PFAS Seminar" in the subject line.


Opens the 'Background' page


Drinking Water

Non-Drinking Water


Constituents of Emerging Concern (CEC)

  Stay Informed

Email Subscription List

Subscribe to our Per- and Polyfluoroalkyl Substances (PFAS) email list to receive notifications and the latest updates.

Check your email account for a confirmation email to complete your subscription.

  Subscribe to our other email lists. See the "Water Qualitysection.

Coordinating Agencies

  • California Air Resources Board Logo    California Department of Pesticide Regulation Logo    California Department of Public Health (CDPH)  Logo    CalRecycle Logo    California Water Boards’ Environmental Laboratory Accreditation Program (ELAP) logo    Department of Toxic Substances Control – Safer Consumer Products logo    California Office of Environmental Health Hazard Assessment (OEHHA)  logo