The Petaluma Valley Groundwater Sustainability Agency (GSA) is a public agency formed to sustainably manage groundwater in the Petaluma Valley groundwater basin. The agency was formed in June 2017 and has a Board of Directors, an administrator and an advisory committee.
Meeting Calendar
Email Updates
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
Petaluma Valley groundwater basin land use and crop type map (click to view larger)
Recent News
Basin Reprioritization Comments
On August 20, the California Department of Water Resources closed the public comment period for its draft basin reprioritization. Under the draft assessment, Petaluma Valley Basin increased from medium to high priority. In addition, three Sonoma County basins were increased to medium priority: Alexander Valley, Wilson Grove and Dry Creek. The Petaluma Valley GSA submitted comments expressing concerns regarding reprioritization (above).
Monthly Email Updates
Find out what’s happening with groundwater activities in Sonoma County by reading the latest email update. Visit the “Email Updates” page to read updates from past months.
“Management and use of groundwater in a manner that can be maintained during the planning and implementation horizon without causing undesirable results.”
The Petaluma Valley GSA will be tracking six main sustainability indicators:
Lowering Groundwater Levels
Seawater Intrusion
Reduction of Storage
Land Subsidence
Degraded Groundwater Quality
Surface Water Depletion
For more information about groundwater, visit our Understanding Groundwater page or read our Groundwater Primer.
