U.S. Geological Survey

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

           Total offstream water use by Colorado and the nation, 1990
         [Figures may not add to totals because of independent rounding.
           Mgal/d = million gallons per day; gal/d = gallons per day]

                                   Part I
--------------------------------------------------------------------------------
                                            WITHDRAWALS, in Mgal/d
                        PER         (includes irrigation conveyance losses) 
                       CAPITA  -------------------------------------------------
          POPULATION,   USE,                  By source and type                
STATE      in thou-    fresh-   ------------------------------------------------
            sands      water,      Ground water              Surface water      
                      in gal/d  --------------------   -------------------------
                                Fresh  Saline  Total   Fresh    Saline    Total
--------------------------------------------------------------------------------
Colorado     3,294     3,850    2,770     30   2,800    9,910        0     9,910
Total      252,336     1,340   79,400  1,220  80,600  259,000   68,200   327,000

                                   Part II
--------------------------------------------------------------------------------
                 WITHDRAWALS, in Mgal/d
          (include irrigation conveyance losses)
          --------------------------------------  RECLAIMED  CONVEY-  CONSUMP-
                                                    WASTE-    ANCE    TIVE USE,
STATE                  Total                        WATER,   LOSSES,  fresh-
                                                     in        in     water,
             -------------------------             Mgal/d    Mgal/d  in Mgal/d
              Fresh     Saline   Total
--------------------------------------------------------------------------------
Colorado     12,700         30   12,700               3.7     2,990     5,250
Total       339,000     69,400  408,000             750      27,500    94,000