Sacramento Valley – Antelope
Statistics
- Basin Name
- Sacramento Valley – Antelope
- Basin Number
- 5-021.54
- SGMA Basin Priority
- High
- Critically Overdrafted
- No
- Hydrologic Region Name
- Sacramento River
- Counties
- Tehama
At-A-Glance
Located in California’s Sacramento River hydrologic region, the Sacramento Valley – Antelope subbasin is 19,091 acres in size. This High priority basin is home to an estimated 7,168 people (2010 value). It has approximately 1141 wells, of which approximately 24 are water supply wells. Groundwater accounts for approximately 80 percent of the basin’s water supply.
Basin Notes
2003: Bulletin 118 basin description
2014: Basin prioritization – medium. Comment: Nitrate issue in domestic wells. GW Use based on B118-03 and 2003 Tehama Co GW Inventory data.
2018: Basin draft priority – high. Comment: 1) CASGEM/WDL/GWIDS: Longterm hydrographs show groundwater level decline. Source: DWR 2) Basin priority changed from Medium to High.
2022: January 31 — Groundwater Sustainability Plan (GSP) submitted to the Department of Water Resources (DWR)
2023: October 26 — GSP deemed incomplete by DWR. GSA given 180 days to correct deficiencies.
December 11 — Addressing Groundwater Overdraft in the Sacramento Valley, Public Policy Institute of California