A Proposed Framework for Regulating Direct Potable Reuse in California


About the Framework

The State Water Board staff is preparing the Framework to satisfy the recommendation in Assembly Bill (AB) 574 (Chapter 528, Statutes of 2017) to establish a framework for the regulation of potable reuse projects on or before June 1, 2018. In preparing the Framework, the State Water Board will include the following elements stated in the California Water Code section 13560.5:
  1. The consideration of recommendations provided in the State Water Board’s “Investigation on the Feasibility of Developing Uniform Water Recycling Criteria for Direct Potable Reuse.”
  2. A schedule for completing the recommended research described in “Investigation on the Feasibility of Developing Uniform Water Recycling Criteria for Direct Potable Reuse.”
  3. A regulatory framework for potable reuse projects that will be protective of public health.
  4. A process and timeline for updating uniform water recycling criteria for potable reuse through reservoir water augmentation.

The Framework is intended to primarily document and communicate the State Water Board Division of Drinking Water’s (DDW) current thinking on regulating direct potable reuse in California. The feedback received from the public will help inform the State Water Board in laying the groundwork for the development of the uniform water recycling criteria for direct potable reuse. The Framework is not a regulatory document. A rulemaking process pursuant to the Administrative Procedure Act will be a separate effort undertaken by the State Water Board for the uniform water recycling criteria for direct potable reuse through raw water augmentation.

The Framework and Fact Sheet can be downloaded from web links below.

Download the Framework (PDF)

Download the Fact Sheet (PDF)

Public Workshops

State Water Board DDW staff will be holding workshops in northern California and southern California to present the Framework. The workshops are open to the public. Please see Workshop Notice for details regarding the workshop. Pre-registration is not required. A sign-in sheet will be available at the workshop locations.

Download the Workshop Notice (PDF)

Northern California
Monday, April 23, 2018
1:30 pm to 4:00 pm
Elihu M Harris Building
1515 Clay Street, Room 2
Oakland CA 94612

Southern California
Thursday, April 26, 2018
1:30 pm to 4:00 pm
Metropolitan Water District of Southern California Headquarters
700 North Alameda Street, Room US2-456
Los Angeles, CA 90012

Webcast is not available for the workshop events. The workshop presentation can be downloaded from web link below.

Download the Workshop Presentation (PDF)

Public Comments

State Water Board is voluntarily soliciting public comments on the Framework. Written public comments will be requested in two rounds. The initial 30-day public comment period is set up so DDW staff can receive early feedback on the Framework concepts, primarily related to regulation of direct potable reuse projects. The public is welcome to submit comments regarding the Framework after the close of public comment period. DDW staff will review all comments received, but may not be able to provide an individualized detailed response.

Public Comment Period
19 April 2018 - 20 May 2018

DDW staff received a total of 10 comment letters by the end of calendar day on May 20, 2018.

Commenters Submitted by
Russian River Watershed Protection Committee Brenda Adelman
Irvine Ranch Water District Paul Cook
City of San Diego John Helminski
General Public Dr. Edo McGowan
San Diego County Water Authority Toby Roy
Metropolitan Water District Mic Stewart
Water Plus Ron Weitzman
WateReuse California
California Association of Sanitation Agencies
California Coastkeeper Alliance
Jennifer West
Roberta Larson
Sean Bothwell
Separation Processes, Inc. James Vickers
California Municipal Utilities Association Jonathan Young

The comments on the Framework may be sent to the State Water Board DDW, Recycled Water Unit as follows:

  • By e-mail: DDWrecycledwater@waterboards.ca.gov (PDF format preferred, 15 megabytes or less in size).
  • By mail, addressed to:
    Sherly Rosilela, P.E.
    Division of Drinking Water, Recycled Water Unit
    State Water Resources Control Board
    P.O. Box 100
    Sacramento, CA 95812-100

State Water Board Informational Item

State Water Board DDW staff presented the Framework as an informational item at the State Water Board hearing on June 5, 2018. The informational item presentation can be downloaded from web link below.

Download the Informational Item Presentation (PDF)
View the video of the Informational Item (Coming Soon)

Contact Information

Randy Barnard, P.E.
Senior Sanitary Engineer
(619) 525-4022

E-mail questions to DDWrecycledwater@waterboards.ca.gov

Return to Division of Drinking Water’s Recycled Water Information page