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<br />- <br />('-. <br /> <br />...... <br />, . <br />- <br /> <br />c.. <br /> <br />and there are no practicable opportunities for importing water, <br /> <br />under existing laws. Practically the entire supply for the lands <br /> <br />at present irrigated is represented by the run-off of the La Plata <br /> <br />River at Hesperus where a continuous record of stream flow has been <br /> <br />maintained since May 1917.' <br /> <br />Table 7 <br /> <br />*Run-off of La Plata River at Hesperus, Colorado <br />(Drainage Area 37 square miles) <br />Acre-feet Oct. 1 to Sept. 30 <br /> <br /> : Acre-feet : Per Cent .. : Per <br />Year . . Year Acre-feet Cent <br />.. . <br /> . . .. . <br /> : . .. : <br /> . .. <br />1918 . 19,200 56 .. 1929 . 381500 : 112 <br />. .. . <br />1919 . 39,900 . 116 . . 1930 . 24,600 . 72 <br />. . .. . . <br />1920 . 57,200 : 167 .. 1931 . 15,400 : 45 <br />. .. . <br />1921 . 44,700 . 130 :: 1932 . 4l,900 : 122 <br />. . . <br />1922 37,000 . 108 .. 1933 22,000 . 64 <br /> . .. . <br />1923 . 43,000 125 .. 1934 : 13,600 . 40 <br />. .. . <br />1924 44,200 129 :: 1935 39,600 115 <br />1925 26,400 77 .. 1936 .32,400 . 94 <br /> .. . <br />1926 . 39,900 116 .. 1937 . 37,500 . 109 <br />. .. . . <br />1927 . 52,800 . 154 .. 19.38 39,900 . 116 <br />. . .. . <br />1928 27,900 81 .. 1939 17.000 . 50 <br /> .. . <br /> n Mean 34.300 . 100 <br /> . <br />* La Plata and Cherry Creek,Pine Ridge and K-el1er ditches divert <br />from river above station. <br />As can be seen from the above tabulation, the yearly supply <br />varies groatly and even the mean run-off is inadequate for 18,000 <br />acres, the maximum irrigated since 19.30. In dry years, like 1931 <br />and 1934, the flow at Hesperus was less tl~n one acre-foot per <br />acre irrigated. <br /> <br />.30 <br />