Sanitation

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Sonoma Water manages and operates eight different sanitation districts and zones throughout Sonoma County. High-quality tertiary treated recycled water is an important source of water and its use offsets potable water demands.

If reporting a sanitary sewer overflow, please call (707) 523-1070.


Sanitation Rate Relief Program

The Districts and Zones offer a discount on Sewer Service Charges for low-income owner-occupied homes and for 501(c)(3) non-profit organizations that provide housing to low-income renters. 

To learn more and view application visit, SonomaWater.org/SRRP



Click on the image below to view District or Zone area map. 

Click on the link below to visit the District or Zone webpage for more information.



Airport/Larkfield/Wikiup Sanitation Zone


Russian River County Sanitation District


Geyserville Sanitation Zone


Sea Ranch Sanitation Zone


Occidental County Sanitation District


Sonoma Valley County Sanitation District


Penngrove Sanitation Zone


South Park County Sanitation District