Get Involved

Comment on the Draft GSP

Section 1 of the Solano Subbasin GSP is now available for public review and comment. 

 Please open the linked PDF file for Section 1:

To review a PDF file for Section 1 CLICK HERE

We would like your input on this section by completing a survey, which includes

  1. Bounded questions where you are asked to indicate your extent of agreement with short               statements, and 
  2. Open-ended questions, where you can write specific comments on Section 1.

Please click on link below to submit your comments:

To comment on Section 1 CLICK HERE

When submitting comments, you will be requested to include (as applicable):

  • The name of your organization
  • Your name
  • The date
  • The pdf page number, line number or figure number
  • A description of your comment or proposed rewording.

At the end of the comment period, your comments will be consolidated with all those received into a single file for review and discussion by the GSP Technical Team, Solano Collaborative, and GSA Boards. 

Comments on the Public Review Draft of Section 1 of the Solano GSP will be accepted through:

December 18, 2020

Comments will be incorporated and issued with the revised Section 1 as part of the Administrative Draft of the GSP which will also be available for Public Review. 

If you have questions related to accessing or commenting on Section 1 of the Solano Subbasin GSP, please contact Suzannah Sosman at

Upcoming Community Events

Drinking Water Virtual Forum 

December 17th, 2020
5:30-7:00pm PST

Join us for a 90-minute discussion on:

  • What SGMA does and does not address when it comes to drinking water
  • Drinking water in the Solano Subbasin and who regulates it
  • Resources and tools available to learn more.

Click here for more information or to register for the event.

Este evento también será en español. Haga clic aquí para más información.

Previous Community Meetings

Thanks to all of you who joined us for the Fall Virtual Town Hall on October 15th, 2020.

Solano GSP Virtual Town Hall – English Recording
Junta Comunitario Virtual de la Subcuenca de Solano – Grabación en Español

Presentation Slides
Here is the full set of slides from all the presentations, in case you’d like a closer look.

Click here to view the agenda.
Haga clic aquí para ver la agenda.

Stakeholder Input

One of the requirements of the Sustainable Groundwater Management Act is for active and effective public input on the Solano Subbasin Groundwater Sustainability Plan. There are multiple ways for you stay on top of the plan as it comes together and to provide input:

  • Staying informed: sign up for the Subbasin Groundwater Sustainability Plan email list. You will get periodic updates on the Plan as well as useful information about groundwater in the region.
  • Engaging: participate in one or all of the public input workshops that will be held once or twice a year throughout the four-year plan development process. These workshops will be timed at key moments when your input and insight will be critical.
  • Connecting: Each GSA is the Collaborative is governed by a board and supported by staff. You are always encouraged to check in with your local representatives in the Plan development process.

Our goal is to have a robust, transparent process that brings people together around key questions that will influence the development of the Groundwater Sustainability Plan.

Community input is being facilitated by Ag Innovations, a nonprofit devoted to facilitating collaboration around issues related to agriculture, water, and our future. Ag Innovations facilitated past SGMA related workshops in the Solano Subbasin. You may also hear from The Freshwater Trust or the Local Government Commission, who received a grant to expand on community input in the Solano Subbasin. To learn more about our full stakeholder engagement efforts, see Solano Subbasin GSA Collaborative Community Engagement Plan.


GSP Community Advisory Committee

The Solano GSA Collaborative has formed a Community Advisory Committee (CAC) comprised of community leaders from diverse sectors, communities, and geographical locations in the Solano Subbasin to provide review for specific sections or concepts in the GSP. GSP Advisory Committee meetings are open to the public for observation, and include time at the end for public comments.

For more information on the CAC, check out this GSP AC Overview. 

For a list of members and to learn more about the CAC and its mission, please see the Solano GSP Community Advisory Committee Charter. Please note, this is a “living document” and will be updated and revised as the CAC engages in its work and discovers ways this document can be improved.

You can also watch the the information session and kick-off event for the CAC, which took place on June 25th. Click here to watch the recording. If you’d like to view the slides featured in the recording, click here for Solano Subbasin and SGMA slides and here for the Groundwater 101 For slides.

Next CAC Meeting:
Location: Zoom

If you’re interested in joining the CAC, or if you’d like to register to join the next meeting as an observer, please contact Aimee Ryan at

Previous CAC Meetings

October 29th, 2020

August 17th, 2020

Look Back Frequently for Updates

A series of public information meetings were held in the Spring of 2019 to keep community members up-to-date on the Solano Subbasin Groundwater Sustainability Plan process and Sustainable Groundwater Management Act (SGMA) compliance.

Presentations from the April 2019 Open House meetings:

Solano GSP April 2019 Open House Meetings-Facilitators Slides

Solano GSP April 2019 Open House Meetings-Sustainable Groundwater Management Act Slides

Solano GSP April 2019 Open House Meetings-Groundwater Sustainability Agencies Slides

Solano GSP April 2019 Open House Meetings-Groundwater in the Solano Subbasin Slides

Full Recording of Open House meeting on April 10, 2019 in Vacaville (1 hour 46 minutes) You Tube

Grabación completa de la reunión de puertas abiertas el 20 de abril de 2019 en Vacaville (1 hora 46 minutos) You Tube

Handouts from the April 2019 Open House meetings:

The Sustainable Groundwater Management Act in the Solano Subbasin

Monitoring to Maintain Sustainability in the Solano Subbasin

Solano Groundwater Sustainability Plan Schedule at a Glance

Getting Involved in Groundwater-Union of Concerned Scientists

Participe en el manejo de su cuenca-Union of Concerned Scientists

Groundwater-An Essential Part of California’s Water Budget-Department of Water Resources

Sustainable Groundwater Management Act Facts-Department of Water Resources

Testing Your Domestic Well

A Guide for Domestic Well Owners-State Water Resources Control Board

Guia para propetarios de pozos domesticos-State Water Resources Control Board

Domestic Well Users and SGMA-Department of Water Resources and State Water Resources Control Board




You are welcome to attend GSA Board meetings. These Board meetings have time for public comment at the end of each meeting. Below are standing dates for the Solano Subbasin GSAs:

City of Vacaville GSA – 2nd and 4th Tuesday of each month

Northern Delta GSA – 3rd Wednesday of each month

Sacramento County GSA – 2nd and 4th Tuesday and some Wednesdays of each month

Solano GSA – 2nd Thursday of every other month

Solano Irrigation District GSA – 3rd Tuesday of each month



We send out periodic newsletters that are intended to keep you informed of progress, respond to key questions about SGMA in the Solano Subbasin, and let you know about upcoming dates. Below you can find copies of past newsletters. Do sign up for our newsletters.

Subscribe to Solano GSP Updates

* indicates required

Please take a few minutes to fill out this anonymous survey on your water use and how we can best incorporate your input into the Solano Subbasin Groundwater Sustainability Plan. Your input in this process is crucial; we thank you for taking the time!

Take Survey


Solano Subbasin Data Gaps Map

We need your groundwater data! We are looking for voluntary data on groundwater conditions in certain areas within the subbasin-can you help us? This information will give us a better understanding of overall groundwater conditions in the Solano Subbasin. This map shows the areas where we have some data gaps. All personal information will be redacted.

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.





Open House: Solano Subbasin Groundwater Sustainability Plan

Press Release-March 18, 2019

  • April 2, 2019-Dixon Community Center
  • April 4, 2019-Rio Vista High School
  • April 10, 2019-Vacaville Ulatis Center

October 11, 2018 Solano Groundwater Sustainability Plan Presentation to Solano GSA Board of Directors

* February 2017: GSA Prospective Board Workshop



Solano Groundwater Sustainability Agency

810 Vaca Valley Parkway, Vacaville, CA 95688

Tel: 707.451.6090 Fax: 707.451.6099