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.

Agendas & Meeting Calendar

Find out when and where the Board of Directors and the Advisory Committee are meeting next

Email Updates

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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
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New groundwater monitoring wells will provide ‘picture’ of underground water connections

Santa Rosa, CA – During the months of October and November, up to 21 groundwater monitoring wells will be drilled near Sonoma County creeks to provide new information to managers and the public on the link between groundwater and stream flows. Coordination and construction of the wells are a technical service provided by the California Department of Water Resources (DWR) to Sonoma County’s three Groundwater Sustainability Agencies (GSAs). Read full press release.

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.

Latest Update
What is the Sustainable Groundwater Management Act?
The Sustainable Groundwater Management Act (SGMA) requires that California groundwater basins identified as high or medium priority establish a Groundwater Sustainability Agency by June 30, 2017, and develop a plan for sustainable management by January 31, 2022. If the local GSAs fail to follow the timeline, then the State Water Resources Control Board will step in and intervene in local groundwater management. SGMA defines sustainable management as:

“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.
Groundwater Sustainability Plan Development Timeline