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acre-foot

[′ā·kər ′fu̇t]
(hydrology)
The volume of water required to cover 1 acre to a depth of 1 foot, hence 43,560 cubic feet; a convenient unit for measuring irrigation water, runoff volume, and reservoir capacity.

acre-foot

The amount of water required to cover an area of 1 acre to a depth of 1 foot; equivalent to 43,560 cubic feet (4046.9 m3); sometimes used as a measure of materials in place (e.g., gravel).
References in periodicals archive ?
Geological Survey report from 2003 concluded that annual pumping from the Antelope Valley groundwater basin averaged 81,700 acre-feet per year between 1991 and 1995, after the housing boom of the 1980s but also at a time when agriculture had fallen sharply from its peak in the 1950s.
5 million acre-feet per year, with Mexico getting 1.
By states working together, we will be able to conserve and store up to 70,000 acre-feet of water annually in future years along the Colorado River.
Together, the two projects will add 100,000 acre-feet a year to the region s water supply by 2017
That's less than usual: This year over 435,000 acre-feet of water have been released for the farmers' two crops.
Last year, this city of 450,000 people pumped out almost 120,000 acre-feet.
That's just 6 percent of the city's total water demand, but it's needed to help replace 160,000 acre-feet of water the DWP has had to leave in the eastern Sierras to replenish Mono Lake and control dust at Owens Lake.
The 41,000 acre-feet transfer is not final,'' he said after the hearing.
The various environmental restrictions have reduced deliveries of Owens Valley water to Los Angeles by approximately one-third, or 160,000 acre-feet per year.
The agency overseeing the valley's annual California Aqueduct allocations said it will receive 95,200 acre-feet of water from the state Department of Water Resources.
Prices and terms are still being negotiated, LaMoreaux said, but Western Canal's general manager said his district is willing to supply Palmdale an annual average over 10 years of 7,500 acre-feet - enough for 7,500 Palmdale families a year - with as much as 15,000 acre-feet available in any one year.