Proposed Basin Plan Amendment Regarding The Onsite Wastewater Treatment System Implementation Program

On June 19, 2012, the State Water Resources Control Board (State Water Board) adopted the Water Quality Control Policy for Siting, Design, Operation, and Maintenance of Onsite Wastewater Treatment Systems (OWTS Policy). Applicable statewide, the OWTS Policy designates the regional water quality control boards with principal responsibility for overseeing its implementation and calls for incorporation of the OWTS Policy requirements into regional boards' basin plans within a year of the policy's effective date. The administrative record for the OWTS Policy was approved by the Office of Administrative Law (OAL) on November 13, 2012.

The North Coast Regional Water Board has revised the Water Quality Control Plan for the North Coast Basin (Basin Plan) to incorporate the State Water Board's OWTS Policy, as required.

Approved Amendment

The revision of Chapter 4 of the Basin Plan to incorporate the statewide Onsite Waste Treatment System Policy, with modification, has been approved by Office of Administrative Law and is now in effect. 

Regional Water Board Documents

Mailing List

We encourage users interested in the OWTS Amendment and other basin planning issues to subscribe to the Basin Planning email list.

If you would like to be added to the hard-copy mailing list, please contact Lisa Bernard at 707-576-2677 or 5550 Skylane Blvd, Suite A, Santa Rosa, California, 95403.

Contact Us

For information, comments, or questions concerning the OWTS Amendment please contact:

Lisa Bernard

  (Page last updated 7/5/23)