The Santa Rosa Plain Groundwater Sustainability Agency (GSA) is a public agency formed to sustainably manage groundwater in the Santa Rosa Plain groundwater basin. The agency was formed in June 2017 and has a Board of Directors, an administrator and an advisory committee.

Meeting Calendar

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

Email Updates

Sign up to receive monthly email updates on groundwater management activities

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

Request for Proposals for Administrative Services

The Santa Rosa Plain Groundwater Sustainability Agency (GSA) is seeking proposals from consultants or firms with experience managing and administering public agencies to provide administrative services for the GSA. The Request for Proposals will close at 5:00 p.m. August 13, 2018. For more information, see the attached RFP or contact Ann DuBay at (707) 524-8378 or

Agenda for Open Meeting related to the Santa Rosa Plain Groundwater Sustainability Agency

California Public Utility Commission (CPUC) regulated water companies and mutual water companies providing water service in the Santa Rosa Plain aquifer area will meet to discuss participation in the Groundwater Sustainability Agency.

When:  Thursday July 26, 2018 at 3p.m.

Where: City of Santa Rosa Utilities Field Operations (UFO) building (35 Stony Point Road), Santa Rosa, CA, Room F

Agenda Items:

1. Discussion of fire recovery status and impacted members
2. DWR Listening tour update
3. Report on SRP GSA Board of Directors activity
a. View attached agendas, presentations and minutes by clicking the button below.
b. June 14, 2018 BOD Meeting
i. Boundary modifications
ii. Funding
4. Future Quarterly Meeting Dates and Locations
5. Member Comments
6. Open Comments
7. Adjourn

please contact Evan Jacobs, California American Water, (707) 495-6135.

Santa Rosa Plain groundwater basin land use and crop type map (click to view larger)

Recent News

DWR recently released its recommendations for basin reprioritization. Under the draft assessment, Santa Rosa Plain, Petaluma Valley and Sonoma Valley Basins all increased from medium to high priority basins, and Alexander Valley, Wilson Grove Highlands and Dry Creek were each listed as medium priority. Public comment is open until August 20, with final prioritization in mid-November.

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.

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 Santa Rosa Plain 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