U.S. Geological Survey

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

        Irrigation water use by Colorado and the nation, 1990
    [Figures may not add to totals because of independent rounding]

                              Part I
------------------------------------------------------------------------
                                      THOUSAND ACRE-FEET PER YEAR    
                             -------------------------------------------
           IRRIGATED LAND                                               
            BY TYPE, in      Withdrawals, by source                     
STATE      thousand acres    ----------------------   Reclaimed  Convey-
           --------------      Freshwater      Total   waste-     ance  
                            ----------------           water     losses 
           Spray    Flood   Ground   Surface                            
------------------------------------------------------------------------
Colorado     897    2,660    2,870    10,100   13,000     4.2     3,350  
Total     22,800   34,600   57,200    95,900  153,000   740      30,800  

                              Part II
------------------------------------------------------------------------
           THOUSAND ACRE-
           FEET PER YEAR            MILLION GALLONS PER DAY
           --------------  --------------------------------------------
                                                               Consump-
              Consump-      Withdrawals, by source               tive
STATE         tive use,    -------------------------  Convey-     use,
              fresh-          Freshwater       Total   ance      fresh
               water       ----------------           losses     water
                           Ground   Surface
-----------------------------------------------------------------------
Colorado       5,560        2,560     9,000   11,600    2,990    4,960
Total         85,400       51,000    85,500  137,000   27,500   76,200