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<br />Table B-1 - Calculated Mean Monthly Flows in the Colorado River above Grand Valley <br />Irrigation Company Diversion Dam historically available for fish passage (cfs) <br />Year Aoril Mav June Julv AWl Seo Oct Nov <br />1930 1,338 7,166 11,382 .2,959 392 18 368 1,289 <br />1931 476 39,305 2,858 218 0 0 0 936 <br />1932 1,338 7,166 11,372 2,959. 386 18 368 1,289 <br />1933 857 4,662 7,028 1,320 0 0 67 1,070 <br />1934 1,787 8,349 2,186 0 0 0 0 498 <br />1935 521 4,109 19,330 5,581 428 0 116 1,053 <br />1936 4,205 17,547 13,792 3,492 1,693 60 106 973 <br />1937 1,185 10,848 7,945 2,848 0 0 352 1,221 <br />1938 3,566 13,177 23,501 6,321 677 1,231 361 1,255 <br />1939 2,197 12,188 8,967 906 0 0 0 768 <br />1940 995 7,368 6,815 451 0 0 363 921 <br />1941 874 14,992 12,034 3,008 243 124 1,310 1,660 <br />1942 4,787 12,024 19,338 4,535 160 0 0 1,106 <br />1943 2,725 6,664 13,777 4,148 1,103 14 168 1,433 <br />1944 546 245 13,777 4,137 0 0 0 1,186 <br />1945 545 8,680 11,881 6,044 2,628 9 428 1,622 <br />1946 3,568 5,681 9,636 2,175 0 0 355 1,227 <br />1947 1,624 12,200 15,621 9,812 1,809 431 874 1,785 <br />1948 3,089 14,260 12,323 2,951 508 0 118 1,297 <br />1949 2,125 8,005 16,605 7,591 908 82 410 1,311 <br />1950 2,205 5,250 11,483 2,312 0 0 0 1,116 <br />1952 4,074 14,859 20,908 5,192 2,404 849 281 1,311 <br />1953 844 4,008 13,142 2,634 1,027 0 0 1,115 <br />1954 923 3,099 1,276 186 0 0 337 1,080 <br />1955 943 4,774 5,571 1,297 428 0 0 1,006 <br />1956 1,668 9,460 8,613 638 0 0 0 809 <br />1957 1,120 8,080 23,287 15,718 3,447 667 595 1,584 <br />1958 1,627 13,091 11,915 980 0 0 0 1,022 <br />1959 552 4,633 9,391 1,302 20 0 516 1,385 <br />1960 2,797 5,430 9,223 1,341 0 0 26 1,090 <br />1961 233 3,953 5,020 77 0 978 1,630 1,663 <br />1962 7,503 13,018 13,281 6,793 900 45 1,132 1,935 <br />1963 648 3,218 1,966 0 O. 0 0 1,049 <br />1964 340 5,008 5,768 1,478 397 0 23 1,002 <br />1965 1,342 6,114 13,850 7,846 2,380 1,007 1,114 1,823 <br />1966 1,011 4,322 2,546 419 0 0 83 1,001 <br />1967 796 3,392 7,060 2,564 113 93 173 1,194 <br />1968 763 3,600 10,919 2,075 1,620 96 426 1,369 <br /> B-2 <br />