U.S. Geological Survey

Estimated use of water in the United States in 1990.
Hydroelectric Power Water Use

 Hydroelectric power water use by Colorado and the nation, 1990
 [Figures may not add to totals because of independent rounding.
     Mgal/d = million gallons per day; kWh = kilowatthour]
----------------------------------------------------------------
                         WATER USE
                    --------------------
STATE                           Thousand
                    Mgal/d     acre-feet   POWER GENERATED,
                                per year    in million kWh
----------------------------------------------------------------
Colorado             4,160         4,660         1,320
Total            3,290,000     3,690,000       299,000
----------------------------------------------------------------