The links below may provide you more information on aspects of the Sustainable Groundwater Management Act, Groundwater Sustainability Plans, or individual Groundwater Sustainability Agencies.


Solano Subbasin Groundwater Sustainability Plan Submitted, Public Comment Period Open

Read the Feb. 28, 2022 press release

Solano Subbasin Groundwater Sustainability Agency Long-Term Funding for the Solano Subbasin Groundwater Sustainability Plan through Proposition 218

Read the June 9, 2022 press release

Resources Related to the Solano Subbasin and Solano GSP
Reporting Dry Wells

Individuals served by domestic wells who are experiencing a water supply shortage are encouraged to report it to the Department of Water Resources online Household Water Supply Shortage Reporting System. This information will help inform state and local agencies on water shortage impacts to households served by wells, and will help identify the need for local, state, or federal assistance.

To report a water supply shortage, go to the MyDryWell webpage, and click the “Submit Report” button. The form is also available in Spanish by clicking “Enviar Reporte.” The site has been updated with additional Helpful Resources for Homeowners, which can be found at the conclusion of submitting a report or by clicking the “Resources” button on the homepage.

Local Groundwater Sustainability Agencies

City of Vacaville Groundwater Sustainability Agency

Northern Delta Groundwater Sustainability Agency

Sacramento County Groundwater Sustainability Agency

Solano Groundwater Sustainability Agency

Solano Irrigation District Groundwater Sustainability Agency

Groundwater Monitoring

California Department of Water Resources Groundwater Monitoring

Solano County Water Agency Groundwater Monitoring

Other Resources
State Government

Governor Gavin Newsom signed the April 21, 2021 State of Emergency Proclamation after two dry years to prioritize the protection of public health, safety and the environment, and to prepare for and mitigate the effects of drought conditions.

The Department of Water Resources, in coordination with the State Water Resources Control Board, released the Final Groundwater Management and Drinking Water Well Principles and Strategies. The following materials can be found at the Drinking Water Wells Principles website:

  • Final Principles and Strategies (available in English and Spanish, also attached)
  • Informational Flyer (available in English and Spanish, also attached)

 April 21, 2021 State of Emergency Proclamation

Final Groundwater Management and Drinking Water Well Principles and Strategies

Drinking Water Wells Principles website

California Department of Water Resources SGMA Groundwater Management

California State Water Resources Control Board Groundwater Management Program

California Water Code

California Water Code Part 2.74 Sustainable Groundwater Management

Domestic Well Users Leaflet (California Department of Water Resources)

Solano Water Advisory Commission

 White Paper: How Solano County is Meeting Water Conservation Goals in the Current Drought

Neighboring Subbasins

Yolo Subbasin-Yolo Subbasin Groundwater Agency

South American Subbasin-Sacramento Central Groundwater Authority

Tracy Subbasin-San Joaquin Flood Control & Water Conservation District

SGMA Groundwater Management

View Site

Groundwater Education

Groundwater Exchange

Nature Conservancy Groundwater Resources Hub

Groundwater Guide – English

Groundwater Guide – Spanish

Local Well Programs

Sacramento County Wells Program

Solano County Well Program

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       Am I in the Solano Subbasin?


 Clicking on the link above will take you to an interactive Solano Subbasin and GSA Boundaries map.


Solano Groundwater Sustainability Agency

810 Vaca Valley Parkway, Vacaville, CA 95688

Tel: 707.451.6090 Fax: 707.451.6099

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