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Water in California. Map of water storage and delivery facilities as well as major rivers and cities in the state of California. Central Valley Project systems are in red, and State Water Project in blue. California 's interconnected water system serves almost 40 million people and irrigates over 5,680,000 acres (2,300,000 ha) of farmland. [1]
Principal aquifers of California. 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 ...
Explore current groundwater conditions in this interactive map: Patterns emerged. Many of the communities most exposed to flooding were built along historical creeks or on top of filled-in wetlands.
California groundwater basins, subbasins, and hydrologic regions. The California Department of Water Resources recognizes 10 hydrologic regions and three additional drainage areas within the U.S. state of California. The hydrologic regions are further subdivided into 515 groundwater basins. [1]
As California seeks to curb groundwater declines, farmers in one county fight back in court. Ian James. July 27, 2024 at 6:00 AM. A farm manager pauses while tending to young pistachio trees on a ...
A decade after signing of California groundwater law, major challenges remain. Ian James. September 17, 2024 at 6:00 AM. Water flows from a well to irrigate an orchard in Visalia in 2021. (Irfan ...
Eleven reservoirs have a storage capacity greater than or equal to 1,000,000 acre-feet (1.2 km 3); all of these except one are in or on drainages that feed into the Central Valley. The largest single reservoir in California is Shasta Lake, with a full volume of more than 4,552,000 acre-feet (5.615 km 3). Map all coordinates using OpenStreetMap.
They also found that groundwater losses in the Central Valley since 2003 have totaled about 36 million acre-feet, or about 1.3 times the full water-storing capacity of Lake Mead near Las Vegas ...