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Administrative Office/Mailing Address:

404 Aviation Boulevard, Santa Rosa, CA 95403
Directions (Google Maps) | Directions (PDF)
Office Hours: Monday - Friday 8 a.m. - 5 p.m.

Operations and Maintenance Center

204 Concourse Blvd, Santa Rosa, CA 95403
Directions (Google Maps)

Phone Numbers

Administrative Office: 707-547-1900

Media/Press Office: 707-331-2040

Emergency Phone Numbers:

  • After-hours Water and Sewage Emergency Hotline:  707-523-1070 - The Sonoma County Water Agency's Operations Center is staffed on a 24-hour basis. Call this hotline to report any sewage spills, overflows, backed-up sewer lines, or other sewer or water related emergencies.
  • Flood Forecast Hotline:  707-526-4768 - The Flood Forecast is a recording that provides updates on local river conditions when the river is forecast to reach flood stage. Sonoma County Water Agency updates the recordings as conditions change.
  • Stream Maintenance:  707-521-1845 - Report any stream-related issues, such as debris or stream channel changes, to prevent localized flooding. Learn more about the Stream Maintenance Program.

Other Emergency Phone Numbers:

  • Sonoma County Department of Emergency Services Hotline: 707-565-3856
  • Transportation and Public Works Road Closure hotline: 707-565-2237 or visit the Public Works web site for County road closures.

Water Suppliers: Cities and Water Districts

For more information about water resource management and water conservation programs in Sonoma and Marin counties, contact your local water supplier:

City of Santa Rosa
(707) 543-3985

Town of Windsor
(707) 838-1004

Marin Municipal Water District
(415) 945-1520

City of Cotati
(707) 523-1010

City of Sonoma
(707) 933-2247

City of Rohnert Park
(707) 585-6750

Valley of the Moon Water District
(707) 996-1037

City of Petaluma
(707) 778-4507

North Marin Water District
(415) 897-4133

Contact Us Form

Fill out the below form to send us your questions or comments. We will make sure they get to the appropriate member of our staff for a response.