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Water Agency

Working Today for Water Tomorrow

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 Water Agency is a regional leader in water resources management. The Water Agency strives to look forward, beyond today's issues, to anticipate ways to advance its mission. Additionally, the Water Agency continues to adapt its mission in response to changing opportunities, keeping the Water Agency at the forefront of developments in the water industry.

The Water Agency was created as a special district in 1949 by the California Legislature to provide flood protection and water supply services. Legislation enacted in 1995 added the treatment and disposal of wastewater to the Water Agency's responsibilities. 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.

Press Releases

  • Featured Press Release: Sonoma County Groundwater Sustainability Plans Approved

    Sonoma County Groundwater Sustainability Plans Approved

    Water Agency
    Published on December 9, 2021

    This week, the boards of Sonoma County’s three groundwater sustainability agencies, Petaluma Valley, Sonoma Valley and Santa Rosa Plain, all unanimously approved Groundwater Sustainability Plans (GSPs) for each basin. The GSPs are required to be submitted as part of the Sustainable Groundwater Management Act (SGMA) for the purpose of assessing the conditions of each groundwater basin, analyzing the basin’s sustainability over a 50-year period, and identifying projects and actions needed to ensure the basin is sustainable by 2042.

  • Groundwater Sustainability Plans Public Hearings Scheduled

    Water Agency
    Published on December 1, 2021

    Sonoma County’s three groundwater sustainability agencies, Petaluma Valley, Sonoma Valley and Santa Rosa Plain, will hold public hearings to consider adoption of the Final Groundwater Sustainability Plans (GSPs) in early December.

  • Sewer Main Break near Vacation Beach in Guerneville; Customers Asked to Reduce Water Usage

    Water Agency
    Published on November 30, 2021

    A break in a sewer main was discovered at  3 p.m. today at the end of Orchard Avenue in Guerneville and crews from the Russian River County Sanitation District (RRCSD) are on the scene containing the leak and undertaking repair.  All RRCSD customers are being asked to reduce their water usage as much as possible during this emergency. Reducing water use will reduce flows into the collection system and reduce wastewater discharges.

  • More Press Releases

Services

Current Water Supply Levels

View current water supply levels in Lake Sonoma and Lake Mendocino as well as current Russian River flows.

Water Supply

Sonoma County Water Agency provides high quality drinking water to over 600,000 people in Sonoma and northern Marin Counties.

Flood Protection

The Sonoma County Water agency is responsible for maintaining over 75 miles of streams throughout Sonoma County, and has numerous facilities to help reduce the risk of flooding.

Sanitation

The Sonoma County Water Agency 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.

Contact Information

Contact us by Phone
Address
404 Aviation Boulevard
Santa Rosa, CA 95403
38.51193, -122.7835
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