The Butte Subbasin is a portion of the larger Sacramento Valley Groundwater Basin covering approximately 265,500 acres. The subbasin spans Butte, Colusa, Glenn and Sutter Counties and is generally bounded on the north by the Butte County GSA/Western Canal Water District boundary, on the west by the Sacramento River and the western boundary of Reclamation District 1004, on the south by the Butte-Sutter County line, Biggs West Gridley Water District, and Reclamation District 1004, and on the east by the Butte County GSA/Feather River boundary.
Please contact the Groundwater Sustainability Agencies below for more information on subbasin activities and meeting information.
Groundwater Sustainability Agency
|Biggs-West Gridley Water District||530.846.3317|
|Butte Water District||530.846.3100|
|Colusa Groundwater Authority||530.458.0719|
|City of Biggs||530.868.5493|
|City of Gridley||530.846.5695|
|Reclamation District 1004||530.458.7459|
|Reclamation District 2106||916.321.4500|
|Richvale Irrigation District||530.882.4243|
|Western Canal Water District||530.342.5083|