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Groundwater is a vital resource in California. It sustains our ecosystems, supports our agriculture, fuels our economy, quenches our thirst, and reduces the impacts of drought and our changing climate. Groundwater accounts for 40 percent of the State's total annual water supply in normal years and almost 60 percent in drought years.
- About
California’s Groundwater Live has been developed for a...
- Reservoir Conditions
We would like to show you a description here but the site...
- Groundwater
Groundwater. Groundwater is an important source of water...
- California's Groundwater (Bulletin 118)
Bulletin 118 is California’s official publication on the...
- About
Groundwater. Groundwater is an important source of water stored in the earth, deep beneath our feet, in what are called aquifers. Aquifers are the collective saturated spaces between many layers of sands, soils, and gravels (called alluvial aquifers), or the interconnected cracks in bedrock or volcanic deposits (called fractured rock aquifers).
Seasonal Groundwater Level Changes (1, 3, 5, 10-Years) The interactive dashboard below contains information about how groundwater levels have changed over time in California. Well measurements are separated into spring (January - May) and fall (June-November) seasons for this analysis. Each well is assigned one measurement per season.
The water has not returned. The result is a sinking state. Here are some startling facts about California’s groundwater depletion: 1. Californians drained about 125 million acre-feet of groundwater (about 41 trillion gallons) from the Central Valley between 1920 and 2013, according to the U.S. Geological Survey.
Bulletin 118 is California’s official publication on the occurrence and nature of groundwater statewide. Bulletin 118 defines the boundaries and describes the hydrologic characteristics of California’s groundwater basins and provides information on groundwater management and recommendations for the future.
The California Department of Water Resources has created an interactive map that shows geospatially referenced groundwater levels, groundwater table elevation, and subsidence in California. The map includes: Other layers show which regions are encompassed by groundwater management plans, groundwater models, and county boundaries.
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Aug 30, 2023 · In 2014, California lawmakers passed a landmark groundwater management law that is meant to prohibit unlimited drawdowns of aquifers, but the state is still working on putting those rules into effect.