The Sonoma Valley Groundwater Sustainability Agency (GSA) is a public agency formed to sustainably manage groundwater in the Sonoma Valley groundwater basin. The agency was formed in June 2017 and has a Board of Directors, an administrator and an advisory committee.
Agendas & Meeting Calendar
Groundwater Sustainability Plan
Take a look at our twenty year plan for groundwater sustainability
Find Your Basin
To determine your basin of residence, click here and type your address into the search bar at the top left of the page
Materiales en Español
Estamos trabajando para proporcionar tantos materiales en español como sea posible
Outreach to Rural Well-Owners Underway
Approximately 9,500 rural well owners in Sonoma County will soon be receiving a survey designed to elicit their concerns and ideas about local groundwater conditions. The purpose of the survey is to raise awareness about local groundwater management and to solicit feedback from well owners regarding any concerns they may have about groundwater in the basin. The survey results will also be used as the basis for later focus groups that will provide an opportunity for more in-depth discussions of issues and ideas for improving groundwater conditions.
This joint project of the county’s three Groundwater Sustainability Agencies (GSAs) is the first step in an engagement project designed to educate and receive feedback from well owners in the Petaluma Valley, Santa Rosa Plain and Sonoma Valley groundwater basins. Survey results will be shared with the GSA Board at its February meeting.
Defining Sustainability in the Sonoma Valley
The GSA Board and Advisory Committee are working hard to develop locally appropriate definitions of sustainable groundwater management for the six sustainability indicators, below, as required by SGMA.
Go the Groundwater Sustainability Plan pages for updates.
“Management and use of groundwater in a manner that can be maintained during the planning and implementation horizon without causing undesirable results.”

Lowering Groundwater Levels

Seawater Intrusion

Reduction of Storage

Land Subsidence

Degraded Groundwater Quality
