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The acre-foot per year has been used historically in the US in many water-management agreements, for example the Colorado River Compact, which divides 15 million acre-feet per year (19 cubic kilometres per year) among seven western US states. Water reservoir capacities in the US are commonly given in thousands of acre-feet, abbreviated TAF or ...
It is equal to exactly 43,560 cubic feet, or 325,853.382 U.S. gallons, or 1233.489238 cubic meters". (Unfortunately, it appears that the popular and incorrect calculation of 325,851 or 325,853 gallons per acre foot is being perpetuated throughout the known world! All this because of the lack in ability to do this simple calculation.
For example, in a sample of 706 hotels in New York City, average daily water use intensity in 2011 ranged from 60 to 456 gallons per 1000 square feet (g/ksf/d), with the median use of 215 g/ksf/d. [11] In other areas the median use per 1000 square feet were reported at: 257 gallons in Florida, [10] and 219 gallons in Austin, Texas. [11]
The SI unit is cubic metres per second (m 3 /s). Another unit used is standard cubic centimetres per minute (SCCM). In US customary units and imperial units, volumetric flow rate is often expressed as cubic feet per second (ft 3 /s) or gallons per minute (either US or imperial definitions).
cubic feet = 3 379 200 acre-feet = 4.168 181 825 440 579 584 cubic kilometres: ≈ 916 871 822 916 imperial gallons: ≈ 1 101 117 140 000 US liquid gallons
The census-defined urban area includes L.A., Long Beach and Anaheim, and experiences approximately 490,000 acre-feet of runoff each year, or roughly 437 million gallons per day. Read more: Newsom ...
= 8 imperial gallons = 4 imperial pecks = 36.368 72 litres: ≈ 8.25645 US dry gallons ≈ 9.60760 US fluid gallons ≈ 2 219.36 cubic inches: ≈ 1.284 35 cubic feet 1 US bushel [6] = 8 US dry gallons = 4 US pecks = 2 150.42 cubic inches = 1.244 46 cubic feet = 35.239 070 166 88 litres ≈ 9.3092 US fluid gallons ≈ 7.7515 imperial gallons
The relationship between gallons per minute (gpm) and fixture unit is not constant, but varies with the number of fixture units. For example, 1000 FU is equivalent to 220 US gallons per minute (0.014 m 3 /s) while 2000 FU represents only 330 US gallons per minute (0.021 m 3 /s), about 1.5 times the flow rate.