Big Valley (Lake County) Basin
Statistics
- Basin Name
- Big Valley (Lake County) Basin
- Basin Number
- 5-015
- SGMA Basin Priority
- Medium
- Critically Overdrafted
- No
- Hydrologic Region Name
- Northern
- Counties
- Lake
- Adjacent Basins
-
No items found
Basin Notes
At-A-Glance
California Water Library Documents About This Basin
Decadal trends in the quality of groundwater used for public drinking-water supply in California, 2004–23
U.S. Geological Survey (USGS) | July 30th, 2026
This study provides a comprehensive assessment of decadal changes in the quality of groundwater used for public drinking- water supply at 444 monitoring sites across Cali
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
Statement of Findings regarding the Approval of the Big Valley Basin Groundwater Sustainability Plan
California Department of Water Resources (DWR) | April 27th, 2023
Groundwater Sustainability Plan for Big Valley (Lake County) Basin
Lake County Watershed Protection District | January 31st, 2022
The purpose of this Groundwater Sustainability Plan (GSP) is to verify and maintain sustainable groundwater management in the Big Valley Groundwater Basin (Basin Number 5