Storm Water - Flood Control
The County of Sonoma provides services for public drainage systems throughout the unincorporated county, except for Sonoma County Water Agency facilities.
Please call 911 to report emergency flooding threatening life or property.
To report non-emergency flooding problems, see our Storm Water Contact Page:
To prevent flooding in and around your house you can:
To prepare for flooding you can:
If there has been flooding in or around your neighborhood:
Public storm drain system improvements are designed in accordance with the Sonoma County Water Agency Flood Control Design Criteria Manual.
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