Contact Us

The  Yolo Subbasin Groundwater Agency (YSGA) is now managing the SGMA implementation process.  Tim O’Halloran is the managing Executive Officer for the Agency’s Board of Directors.

With questions or concerns, please contact Donna Gentile, Administrative Coordinator and Board Secretary.

Yolo Subbasin Groundwater Agency
34274 State Highway 16
Woodland, CA 95695

Phone: (530) 662-3211

If you want to receive SGMA notices, please sign up for the SGMA email list.

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The forum for groundwater information and Sustainable Groundwater Management Act (SGMA) planning and implementation.