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Contact Us

Our goal is to provide you with the best possible service and your questions and suggestions are vital to our success. We are looking forward to your communication.

You may contact us at:

Phone: 866-79-CIWQS (24977)
Email: ciwqs@waterboards.ca.gov
Monday through Friday (excluding State Holidays)
8:00 a.m. - 5:00 p.m.