Welcome to the California Regional Water Quality Control Board - Santa Ana Region Welcome to the California Environmental Protection Agency
Contact Us

Contact Us

The Santa Ana Regional Board is committed to serving the public. Our goal is to provide the best service possible.

We invite your questions and comments. There are several ways to contact us. Please choose the option that suits you best.

Comments/Questions/Complaints:

U.S. Mail:

Santa Ana Regional Water Quality Control Board
3737 Main Street, Suite 500
Riverside, CA 92501-3348

Telephone:

Main number - (951) 782-4130
TTY (951) 782-3221
Alphabetical - List of Santa Ana Region Staff

Fax:

(951) 781-6288

Email:

Please note: Email addresses are generally first letter of first name and full last name @waterboards.ca.gov.

Upload/Download Electronic Files:

  • Upload a File - Send a file larger than 10 MB to staff using our YouSendIt dropbox
  • FTP Download - Download large posted files

In person:

Santa Ana Regional Water Quality Control Board
3737 Main Street, Suite 500
Riverside, CA 92501-3339
Hours - 8:00 am to 5:00 pm, Monday - Friday, Closed on Government Holidays
Map and Directions