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Approximately 85% of water used in California by farmers and residents today is from groundwater, with 6 million Californians relying solely on this resource. [2] The Central Valley is a big user of groundwater for agricultural purposes which supplies a large portion of food for not only California, but for the rest of the United States as well. [3]
The SGMA determined 43 high-priority groundwater basins and 84 medium-priority groundwater basins, totaling 127 basins accounting for 96% of California's groundwater. These basins must adopt GSPs by 2020 or 2022 (depending on the basin) and have until 2040 or 2042 to attain sustainability.
California aquifers, excerpted from map in Ground Water Atlas of the United States (USGS, 2000): Lavender is "other" for "rocks that generally yield less than 10 gal/min to wells"; dark green-blue (3) are the California coastal basin aquifers, bright-turquoise blue (7) is the Central Valley aquifer system, flat cobalt-blue (1) down south is Basin and Range aquifers
The latest drought, from 2020 through 2022, set a record as California’s driest three-year period on record, and state data show more than 2,600 dry wells were reported during that time.
The State of California passed the Central Valley Project Act in 1933, which authorized Reclamation to sell revenue bonds in order to raise about $170 million for the project. [3] Unfortunately, because of insufficient money in the state's treasury and the coincidence with the Great Depression , California turned to the national government for ...
[3] [4] As a result, investment into groundwater recharge basins has been steadily increasing in recent years. Groundwater projects are planned to provide an increase of 500,000 acre-feet annually to the water supply. [5] With 2023 being an extreme wet year, California achieved a record-setting 8.7 million acre-feet of groundwater to aquifers. [6]
Map of California's interconnected water system, including all eleven reservoirs over 1,000,000 acre-feet (1.2 km 3) as well as selected smaller ones.. This is a list of the largest reservoirs, or man-made lakes, in the U.S. state of California.
Waterloo Hydrogeologic is a company that specializes with groundwater modelling software, training, and consulting services. The company was started by Nilson Guiguer and Thomas Franz, who were developing software for their research at the University of Waterloo in 1988. The company was later founded in 1989 as Waterloo Hydrogeologic Software ...