Castac Lake Valley
Statistics
- Basin Name
- Castac Lake Valley
- Basin Number
- 5-029
- SGMA Basin Priority
- Very Low
- Critically Overdrafted
- No
- Hydrologic Region Name
- Tulare Lake
- Counties
- Kern
- Adjacent Basins
Basin Notes
2003: Bulletin 118 basin description
2014: CASGEM basin prioritization – Very Low
2018: Final Basin Prioritization: Unchanged at Very Low
At-A-Glance

California Water Library Documents About This Basin
California's Groundwater Conditions: Semi-Annual Update May 2025
California Department of Water Resources (DWR) | June 24th, 2025
This semi-annual report presents data received by DWR as of April 2025 and reflects the impacts of a few wet years after a drought period. However, it should be noted tha
Beyond the Haze: A UC Dust Report on the Causes, Impacts, and Future of Dust Storms in California
University of California, San Diego (UC San Diego) | December 5th, 2024
This report is intended to be a comprehensive summary of the current state of knowledge of dust storms in California, including where dust storms occur, the features cont
Castac Lake Valley Groundwater Sustainability Plan
Castac Basin Groundwater Sustainability Agency | September 17th, 2020
The Castac Lake Valley Groundwater Basin (also referred to herein as “the Basin”), California Department of Water Resources (DWR) Basin No. 5-029, is located at the