Groundwater Sustainability

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Sign up here to receive updates on the City's involvement in preparing a Groundwater Sustainability Plan. Include your name, e-mail address, organization (if any), and interest in groundwater.

BOARD MEETINGS
GSA board meetings are held concurrently with City Council meetings and all agendas and minutes are archived online.

The City of Vacaville formed a Groundwater Sustainability Agency (Vacaville GSA) in April 2017 to manage groundwater resources beneath and within the City limits.

The Vacaville GSA is collaborating with other local GSAs to develop a Groundwater Sustainability Plan (GSP). This plan will identify how the agencies will manage local groundwater resources sustainably. The group must submit a final plan to the State Department of Water Resources (DWR) by January 31, 2022.

The Solano Sub-basin

The City of Vacaville lies on top of the Solano Sub-Basin of the Sacramento Valley Groundwater Basin. In 2014, DWR identified the Solano Sub-Basin as a medium-priority basin. A summary of the existing conditions of the Solano Sub-Basin is available here.

The Vacaville GSA has partnered with other GSAs within the Solano Sub-Basin as part of a coordinating group known as the Solano Collaborative. This group is beginning work together to create a single GSP for the sub-basin.

Other GSAs within the Solano Sub-Basin include:

Map of the groundwater sustainability agencies within the Solano Sub-Basin in California

Agency Formation

On April 11, 2017, City Council directed staff to form an exclusive GSA for the City of Vacaville.

A notice of the intent to form a GSA was published in accordance with California Government Code Section 6066, and a public hearing was held on April 25, 2017. Following the public hearing, City Council adopted Resolution No. 2017-046 to become a GSA.

The City filed an official notice with DWR on April 28, 2017.

Sustainable Groundwater Management in California

In September 2014, Governor Brown signed the Sustainable Groundwater Management Act (SGMA). This act establishes a groundwater management structure within California and empowers local agencies to manage basins sustainably.

SGMA also:

  • Establishes a definition of “sustainable groundwater management.”
  • Requires that agencies in priority groundwater basins adopt Groundwater Sustainability Plans.
  • Establishes a timetable for adoption of Groundwater Sustainability Plans.
  • Establishes basic requirements for Groundwater Sustainability Plans.

For additional information on SGMA, please see the following state websites: