Groundwater Sustainability Plan

On January 18, 2024, the California Department of Water Resources (DWR) approved the Solano Subbasin Groundwater Sustainability Plan (GSP). Read DWR’s statement of findings regarding the approval of the Solano Subbasin GSP under SGMA.

The GSP provides a detailed roadmap for the Solano Subbasin to maintain long-term groundwater sustainability, and went into effect when it was submitted to DWR on January 31, 2022. Opportunities for comments, including a public meeting, were posted on the Solano Subbasin GSP website. The GSP was the product of significant collaboration amongst various water management entities in the Subbasin, including the five Groundwater Sustainability Agencies comprising the Solano Subbasin GSA Collaborative, who worked together to fulfill the requirements of the Sustainable Groundwater Management Act (SGMA).

Please contact to request ADA-compliant materials; please note which materials or sections you are interested in. Please also note that a hard copy of the materials can be made available for viewing during open hours Monday – Saturday at the following addresses:

  • Vacaville Cultural Center Library, 1020 Ulatis Drive, Vacaville, CA 95687
  • Vacaville Town Square Library, 1 Town Square Place, Vacaville, CA 95688
  • Dixon Library, 230 N 1st Street, Dixon, CA 95620
  • Rio Vista Library, 44 South Second Street, Rio Vista, CA 94571
  • Solano County Water Agency, 810 Vaca Valley Parkway, Suite 203, Vacaville, CA 95688 (by appointment only)



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Solano Groundwater Sustainability Agency

810 Vaca Valley Parkway, Vacaville, CA 95688

Tel: 707.451.6090 Fax: 707.451.6099

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