Sonoma County Water Agency

The Sonoma County Water Agency maintains a water transmission system that provides naturally filtered Russian River water to more than 600,000 residents in portions of Sonoma County, California and Marin County, California. The Water Agency is a water wholesaler that sells potable water to nine cities and special districts that in turn sell drinking water to their residents. Theses cities and special districts are: the City of Santa Rosa, Rohnert Park, Cotati, Petaluma, Sonoma, the Town of Windsor, Valley of the Moon Water District, Marin Municipal Water District, and North Marin Water District.

The mission of the Sonoma County Water Agency is to, "effectively manage the water resources in our care for the benefit of people and the environment through resource and environmental stewardship, technical innovation, and responsible fiscal management."

The Sonoma County Board of Supervisors acts as the Water Agency's Board of Directors. The Water Agency is a separate legal entity created by State law, having specific limited purposes and powers, and separate sources of funding. The Water Agency is thus different from County departments, which are created by the Board of Supervisors for administrative purposes, but are not separate legal entities.

The Sonoma County Water Agency was created as a special district in 1949 by the California Legislature to provide flood protection and water supply services. Providing flood protection is an important role in this community. The Water Agency has partnered with federal agencies to help build and manage a variety of flood protection projects, including Warm Springs Dam, Spring Lake, Coyote Valley Dam, Matanzas Creek Reservoir, Piner Creek Reservoir, Brush Creek Middle Fork Reservoir and Spring Creek Reservoir. The Water Agency also manages a proactive stream maintenance program that maintains more than 80 miles of creeks throughout the area.

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