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
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
2025: GSP approved by DWR
At-A-Glance

California Water Library Documents About This Basin
Assessing Causes and Consequences of Winter Surface Water Dynamics in California's Central Valley Using Satellite Remote Sensing
Wiley Online Library | June 3rd, 2025
California's Central Valley is increasingly vulnerable to winter floods. A comprehensive spatial baseline of flood extents is critical for inundation analyses that can en
Statement of Findings regarding the Approval of the Sacramento Valley – Antelope Subbasin 2024 Groundwater Sustainability Plan
California Department of Water Resources (DWR) | February 27th, 2025
Groundwater sustainability and land subsidence in California’s Central Valley
Water (MDPI) | April 22nd, 2024
The Central Valley of California is one of the most prolific agricultural regions in the world. Agriculture is reliant on the conjunctive use of surface-water and groundw
Statement of Findings regarding the Determination of Incomplete Status of the Sacramento Valley Basin -- Antelope Subbasin Groundwater Sustainability Plan
California Department of Water Resources (DWR) | October 26th, 2023
Thousands of domestic and public supply wells face failure despite groundwater sustainability reform in California’s Central Valley
Nature Portfolio (Springer Nature) | September 8th, 2023
Subsurface water flux in California's Central Valley and its source watershed from space geodesy
American Geophysical Union (AGU) | September 29th, 2022
We combine measurements from Global Positioning System positioning and Gravity Recovery and Climate Experiment gravity to infer change in water components in Central Vall
Groundwater Sustainability Plan Antelope Subbasin
Tehama County Flood Control and Water Conservation District | January 31st, 2022
For the full 4,074-page file, go to the Tehama County Flood Control and Water Conservation District or the California Department of Water Resources (DWR).
Critical Aquifer Overdraft Accelerates Degradation of Groundwater Quality in California's Central Valley During Drought
American Geophysical Union (AGU) | September 1st, 2021
It has been established that wells are at risk to run dry when groundwater levels decline during drought, but associated impacts to water quality are poorly understood.
Multiscale Assessment of Agricultural Consumptive Water Use in California's Central Valley
American Geophysical Union (AGU) | May 4th, 2021
Groundwater development leads to decreasing arsenic concentrations in the San Joaquin Valley, California
Science of the Total Environment (Elsevier) | January 18th, 2021
In the San Joaquin Valley (SJV), California, about 10% of drinking water wells since 2010 had arsenic concentrations above the U.S. maximum contaminant level of 10μg/L.
Groundwater quality in the Redding–Red Bluff shallow aquifer study unit of the northern Sacramento Valley, California
U.S. Geological Survey (USGS) | April 23rd, 2020
This study was designed to provide a statistically representative assessment of the quality of groundwater resources used for domestic drinking water in the Redding–
Domestic well vulnerability to drought duration and unsustainable groundwater management in California's Central Valley
Environmental Research Letters (IOP) | March 18th, 2020
Millions of Californians access drinking water via domestic wells, which are vulnerable to drought and unsustainable groundwater management. Groundwater overdraft and th
Geochemistry of Ground Water in the Sacramento Valley, California
U.S. Geological Survey (USGS) | July 13th, 1984
A geochemical investigation was done to evaluate temporal changes in water quality and to determine the processes that control water chemistry in shallow ground water of