Solano Subbasin Groundwater Sustainability Plan

Welcome to the Solano Subbasin Groundwater Sustainability Plan

The Sustainable Groundwater Management Act (SGMA) established a robust framework for the sustainable management of groundwater resources in California. SGMA requires Groundwater Sustainability Agencies (GSAs) to 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.

A group of GSAs in the Solano Subbasin formed the Solano Subbasin GSA Collaborative to develop a GSP and sustainably manage the Solano Subbasin. The GSP was submitted to the California Department of Water Resources on Jan. 31, 2022. The Solano Collaborative aims for transparency and stakeholder engagement in GSP development and implementation. The purpose of this website is to provide information for stakeholders on the process and how to participate.

The first Subbasin Annual Report was submitted on April 1, 2022 to the Department of Water Resources. The report describes the subbasin setting and groundwater conditions, as well as monitoring activities. View the Solano County and Subbasin Groundwater Sustainability Annual Report – Water Year 2021.

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.

Want to learn more about groundwater in the Solano Subbasin?

Check out the Groundwater Guide

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View the Groundwater Sustainability Plan



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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 Groundwater Sustainability Agency

810 Vaca Valley Parkway, Vacaville, CA 95688

Tel: 707.451.6090 Fax: 707.451.6099