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Corning Subbasin

The Corning Subbasin is a portion of the larger Sacramento Valley Groundwater Basin. The Corning Subbasin covers approximately 206,886 acres in Glenn and Tehama Counties. The subbasin is bounded on the west by the Coast Ranges, on the north by Thomes Creek, on the east by the Sacramento River, and on the south by Stony Creek except for a small portion following the Glenn-Tehama County boundary.

Corning Subbasin Map
Corning Subbasin Map
Click to Enlarge

Please contact the Groundwater Sustainability Agencies below for more information on subbasin activities and meeting information.

Tehama County Flood Control & Water Conservatin District
9380 San Benito Ave.
Gerber, CA 96035
(530) 385-1462

Corning Subbasin GSA
720 North Colusa Street
Willow, CA 95988
(530) 934-6501


Updated: Thursday November 08, 2018