Water Quality Control Policy for Siting, Design, Operation and Maintenance of Onsite Wastewater Treatment Systems (OWTS Policy)
Board Adopted PolicyThe Board Adopted OWTS Policy and associated documents. More »»
TimelineA chronology of key implementation items. More »»
Map ToolThe State Water Board has developed a web-based map to assist property owners in determining whether they may be affected by the new policy. More »»
More InformationFrequently asked questions and links to relevant documents and online resources. More »»
Early draft documents, peer review information, etc. More »»
Water Quality Control Policy for Siting, Design, Operation and Maintenance of Onsite Wastewater Treatment Systems (OWTS Policy). More »»
For questions relating to individual septic systems, please contact your local environmental health department or Regional Water Board. To find which Regional Water Board regulates your facility, go to the State and Regional Water Boards map and enter the facility's street address.
If you have questions or comments regarding the OWTS Policy, please contact the following individuals:
Sherly Rosilela, P.E.
Water Resource Control Engineer
Receive emailed updates on OWTS Policy implementation. Subscribe online to our electronic mailing list, "Onsite Wastewater Treatment Policy Implementation".