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California Integrated Water Quality System Project (CIWQS)

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.

Have a CIWQS question or issue?
Fill out our CIWQS Issue Tracking System form

CIWQS Customer Contact Information	PDF	Excel
CIWQS Customer Mailing Information	PDF	Excel
Please use the CIWQS Customer Information Update Form to change incorrect information:	PDF	Word

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