Solano Subbasin Groundwater Sustainability Plan

Welcome to the Solano Subbasin Groundwater Sustainability Plan

Effective January 1, 2015, the Sustainable Groundwater Management Act (SGMA) established a robust framework for the sustainable management of groundwater resources in California.

SGMA requires that one or more Groundwater Sustainability Agencies (GSAs) must develop, implement, and enforce a Groundwater Sustainability Plan (GSP) for groundwater basins or subbasins that are medium or high priority. The Solano Subbasin is a medium priority subbasin, subject to SGMA, and a GSP (or GSPs) must be developed to manage it in a sustainable manner.

A group of GSAs in the Solano Subbasin have formed the Solano Subbasin GSA Collaborative for the purpose of working together collaboratively to develop a GSP(s) for the Solano Subbasin.

A GSP (or GSPs) for the Solano Subbasin must be submitted to the California Department of Water Resources by January 31, 2022.

The intent of the Solano Collaborative is to have an open, transparent, and stakeholder-driven GSP. The purpose of this website is to provide information for stakeholders on the process and how to participate, and to provide sections of the GSP as they are developed for discussion and input.

Please subscribe to the Solano GSP email list if you wish to receive periodic updates and announcements. This website will be updated as GSP content is developed.


The Groundwater Sustainability Plan (GSP) for Adoption is Posted 


Want to learn more about groundwater in the Solano Subbasin?

Check out the Groundwater Guide

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View The GSP for Adoption

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Am I in the Solano Subbasin?

Clicking on the link above will take you to the Solano Subbasin page where you can access a detailed map of the Solano Subbasin and GSA Boundaries.



Solano Subbasin Community Advisory Committee - January 10, 2022 at 12:30 PM



Solano Groundwater Sustainability Agency

810 Vaca Valley Parkway, Vacaville, CA 95688

Tel: 707.451.6090 Fax: 707.451.6099