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SGA : Sacramento Groundwater Authority SGA : Sacramento Groundwater Authority
The Sacramento Groundwater Authority (SGA) is a joint powers authority created to collectively manage the Sacramento region's North Area Groundwater Basin, which includes all of Sacramento County north of the American River.


Ongoing Projects

Groundwater Management Program

Groundwater Management Program

Groundwater Management Plan
SGA adopted its groundwater management plan in December 2003. The authority to prepare a plan is granted to SGA through the Joint Powers Agreement executed between the County of Sacramento and the cities of Citrus Heights, Folsom, and Sacramento to use their commonly held police powers to manage the basin. The plan was prepared in compliance with Water Code Section 10753.7 resulting from the passage of SB 1938 in 2002.

The plan establishes a goal, management objectives, and the primary components needed to manage the basin. These components include:

  • Stakeholder Involvement
  • Monitoring Program
  • Groundwater Resource Protection
  • Groundwater Replenishment
  • Planning Integration


Download the GMP (9 MB pdf) and associated Appendices - (10.6 MB pdf).

Color printed copies of the GMP are available for $25. To request a copy, contact Rob Swartz at rswartz@rwah2o.org.

Basin Management Report
The Basin Management Report (BMR) summarizes conditions and management activities through 2005 in the groundwater basin underlying Sacramento County north of the American River. The BMR reports on hydrologic conditions for 2003-2004 and management activities during 2004-2005, and includes the status of each of the action items in the SGA Groundwater Management Plan (GMP) adopted in December 2003. The BMR will be published biennially.

Download the BMR (5.6 MB pdf)

Data Management System (DMS)
In its effort to manage the North Area Groundwater Basin, SGA has collected a multitude of groundwater-related data from both water-purveyor member agencies and other agencies such as the California Department of Water Resources (DWR) and the U.S. Geological Survey. To better manage the extensive groundwater data and to assess local groundwater conditions, SGA developed a data storage and accounting tool, the DMS. The DMS is a stand-alone application that allows entry, storage, retrieval, and presentation of groundwater and surface water data. The tool was developed by Montgomery Watson Harza under contract with the U.S. Army Corps of Engineers (USACE). Funding for the work was made possible through a cost sharing agreement between the USACE and local sponsors. Local sponsors include SGA members, the DWR Integrated Storage Investigation Program, and a grant awarded to SGA in 2002 from the Local Groundwater Management Assistance Act of 2000 (AB 303).

For More Groundwater Management Program Information
Rob Swartz
916-967-7692
rswartz@rwah2o.org