How much water is used in the United States each day for irrigation of crops?
Daily irrigation use is much larger than drinking water use (about four times), but the volume depends on the location and the time of year. It takes about 50 glasses of water just to grow enough oranges to produce one glass of orange juice, for example. One estimate puts the total amount used for irrigation at 141 billion gallons a day, 66 % from surface water and 34 % from groundwater. Of course, most irrigation water is not treated as tap water is. Total industrial use, by comparison, is about 160 billion gallons per day.
