Groundwater Sustainability
Solano Subbasin Groundwater Sustainability Agency
Solano Groundwater Sustainability Agency
810 Vaca Valley Parkway, Suite 203
Vacaville, CA 95688
(707) 455-1105
Contact: Chris Lee
To read a copy of the Solano Subbasin GSP's first Annual Report,
For more information visit the Solano GSA website.
To learn more about groundwater sustainability visit,
Groundwater Guide: Solano Subbasin , click here
Learn about Solano Subbasin Groundwater Sustainability by watching this short video.
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Sustainable Groundwater Management Act (SGMA)
The Sustainable Groundwater Management Act (SGMA) went into effect on January 1, 2015.
SGMA requires medium- and high-priority groundwater basins in the state to be managed by local agencies that have formed a Groundwater Sustainability Agency (GSA) by June 30, 2017.
The Solano Subbasin GSA is required to draft a sustainability plan for the groundwater in the Solano Subbasin. The final draft of the Solano Subbasin Groundwater Sustainability Plan was submitted to the State of California for approval in January of 2022.
The Solano Subbasin is medium priority.
The DRCD Board is staying informed about the process to help disseminate important information to its constituents.
More information can be found on Solano County Water Agency's website:
Frequently Asked Questions: Sustainable Groundwater Management Act (SGMA) in Solano County, click here