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<br /> 1iVater Exported From Roaring Fork Subbasin - Units Acre Feet
<br />Year Busk Twin Total Ytj~r Busk Twin Total
<br /> Iivanhoe Lakes Diversion Ivanhoe Lakes Diversion
<br /> Timnel Tunnel Tunnel Tunnel
<br />1943 4',850 48,020 52,870 1953 5,080 40,300 45,380
<br />1944 2',100 37,730 39,830 1954 3,200 27,470 30,670
<br />1945 4',900 44,780 49,680 1955 5,270 35,060 40,330
<br />1946 4,640 39,320 43 , 960 1956 4,400 36,440 40,840
<br />1947 1~440 37,310 38,750 1957 5,510 3 2, 740 38,250
<br />1948 1,000 25,030 26,030 1958 2,650 24,030 26,680
<br />1949 4~300 38, 190 42,490 1959 5,180 40,420 45,600
<br />1950 31410 34,880 38,290 1960 5,310 41,920 47,230
<br />1951 5.130 44,920 50,050
<br />1952 6.340 51,360 57,700 A v.crngo 4,151 37,773 41,924
<br /> The estimated present stream depletion of the Roaring
<br />Fork Subbasin is sur~arized in the following table:
<br /> Present Stream Depletion - Acre Feet
<br />
<br />*Average annual stream depletion
<br />: by irrigation
<br />Average annual stream depletion
<br />, by municipal and industrial
<br />use and reservoir evaporation
<br />Average annual stream depletion
<br />: by transmountain diversion
<br />TQtal annual stream depletion
<br />
<br />46,500
<br />
<br />2,200
<br />
<br />41,ZOO
<br />90, 00
<br />
<br />':<Includes allowance for natural vegetation,
<br />~and and water surfaces without limitation
<br />made depletion.
<br />
<br />Potential Use
<br />
<br />seeped
<br />to man-
<br />
<br />Study of the irrigation potential of the subbasin
<br />
<br />
<br />by the Bureau of Reclamation and the Soil Conservation Serv-
<br />
<br />ice over a period of years shows that new land irrigation will
<br />
<br />likely ge limited to about 17,860 acres. The study also shows
<br />that 7,7,50 acres of subbasin irrigated land with short water
<br />supply may well be provided supplemental water for full crop
<br />
<br />productions. The additional new land together with the land
<br />
<br />24
<br />
<br />,1,-. ii'
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