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Welcome to the California Onsite Water Association

Our goals are to:
Increase public awareness and information encouraging localized water solutions.
Promote best management practices for system installations, operations and maintenance.
Streamline and modernize regulatory standards for onsite water technologies.
Advance legislation and policy that embrace localized water as part of a comprehensive, sustainable management plan. 

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COWA Newsletter


Looking Back and Moving Ahead

Looking forward to 2020, and a review of 2019.
Our Winter Newsletter shares updates about the recent Localizing California Waters conference, state policy updates and suggestions for fire resilient onsite water tools. 

Click here to read our Newsletter.


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California Onsite Water Association
PO Box 1063 | Groveland, CA | 95321

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