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[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]
Well yield (gpm) Maximum [4] Well yield (gpm) Average [4] Notes Upper Ojai Valley groundwater basin: 4-1 3,800 200 50 Ojai Valley groundwater basin: 4-2 Medium 6,830 600 383 Ventura River Valley groundwater Basin: 4-3 12,710 Santa Clara River Valley groundwater basin: 4-4 High Acton Valley groundwater basin: 4-5 8,270 1,000 140 Pleasant Valley ...
The groundwater basin provides a water supply to 19 municipal water agencies and special districts that serve 2.5 million Orange County residents. The Orange County Water District's service area covers approximately 350 square miles (910 km 2 ) and the District owns approximately 1,600 acres (650 ha) in and near the Santa Ana River , which it ...
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.
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
After massive downpours flooded California’s rivers and packed mountains with snow, the state reported Monday the first increase in groundwater supplies in four years. The state saw 4.1 million ...
California’s San Joaquin Valley may be sinking nearly an inch per year due to the over-pumping of groundwater supplies, with resource extraction outpacing natural recharge, a new study has found.
According to the California State Water Resources Control Board (1977) the San Juan Creek Groundwater Basin has a total volume of roughly 900,000 acre-feet (1.1 × 10 9 m 3). Natural groundwater recharge in the San Juan basin is estimated at 160,000 acre-feet (200,000,000 m 3) per year. This amount has been reduced due to extensive urbanization ...