WATER
An Iowa Tale of Water Use Mitchell County, north central Iowa
THE RAIN
THE CORN
1” rain on 1 acre = 27,154 gallons water 35.44” 10–year county average annual rainfall 962,347 gallons per acre per year
THE ETHANOL
350,000 gallons of water needed to grow 1 acre of corn 180 bushels per acre 2011 county yield 222,200 acres needed to grow 40 million bushels 77.8 billion gallons water needed to grow 40 million bushels
THE RELATIVE WATER USE
40 million bushels of corn processed 115 MMgy gallons ethanol produced 330 MMgy water used at Absolute Energy
0.0042 % It takes 42/100ths of 1 percent of the water to process the corn as it took to grow it.
Source: Rick Schwarck, chairmen, president and CEO of Absolute Energy LLC, St. Ansgar, Iowa
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