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ATTACHMENT D <br />INSTREAM FLOW SHORTAGES AT GRAND ISLAND, NE <br />(Thousands of Acre -Feet, Sorted from highest to lowest) <br />Water Years 1943.1992 <br />10/11/94 <br />Wet and Average Years <br />Period 1 10/1-11/16 1 11/16-1/31 1 2/1-2/14 1 2/16-3/15 1 3/16-3/22 3/23 -5/10 5/11 -5/19 1 6/20-6/20 1 6/21-9115 1 9116-9/30 1 Total <br />AVG IFR, CFS <br />Total KAF <br />1,800 <br />164.2 <br />1,000 <br />162.7 <br />1 800 <br />60.0 <br />3,350 <br />192.7 <br />1,800 <br />25.0 <br />2,400 <br />233.3 <br />1,200 <br />21.4 <br />3,000 <br />190.4 <br />1,200 <br />207.1 <br />1,000 <br />29.8 <br />Annual <br />1266.5 <br />1978 <br />80.6 <br />27.7 <br />23.8 <br />103.8 <br />0.0 <br />71.5 <br />4.4 <br />159.6 <br />187.5 <br />16.7 <br />675.6 <br />1976 <br />91.0 <br />3.8 <br />9.5 <br />92.0 <br />0.2 <br />75.0 <br />7.5 <br />149.5 <br />191.1 <br />11.5 <br />631.1 <br />1943 <br />119.4 <br />25.2 <br />0.4 <br />98.6 <br />18.2 <br />56.7 <br />0.9 <br />97.7 <br />172.3 <br />29.2 <br />618.6 <br />1944 <br />129.5 <br />23.5 <br />19.2 <br />84.1 <br />5.8 <br />42.9 <br />0.0 <br />100.6 <br />180.5 <br />25.9 <br />612.1 <br />1948 <br />87.2 <br />9.8 <br />20.4 <br />72.8 <br />0.0 <br />67.7 <br />8.4 <br />175.2 <br />139.0 <br />22.6 <br />603.0 <br />1968 <br />48.8 <br />12.7 <br />9.8 <br />97.3 <br />7.5 <br />126.8 <br />5.3 <br />154.1 <br />129.9 <br />5.9 <br />598.0 <br />1965 <br />101.3 <br />33.1 <br />18.4 <br />115.5 <br />7.1 <br />129.5 <br />13.5 <br />84.3 <br />86.0 <br />0.4 <br />589.1 <br />1982 <br />88.4 <br />5.2 <br />8.9 <br />73.8 <br />0.0 <br />125.3 <br />7.4 <br />132.9 <br />139.7 <br />3.9 <br />585.6 <br />1967 <br />75.9 <br />18.7 <br />8.1 <br />119.8 <br />11.3 <br />174.2 <br />12.5 <br />75.1 <br />81.4 <br />2.8 <br />579.8 <br />1989 <br />78.2 <br />3.1 <br />12.7 <br />70.7 <br />0.5 <br />154.4 <br />15.2 <br />169.9 <br />73.4 <br />1.1 <br />579.2 <br />1979 <br />108.2 <br />27.2 <br />28.6 <br />87.9 <br />0.0 <br />56.6 <br />1.4 <br />144.1 <br />95.6 <br />18.5 <br />568.1 <br />1960 <br />75.4 <br />20.4 <br />1.7 <br />118.2 <br />1.9 <br />44.0 <br />0.3 <br />111.9 <br />159.0 <br />29.8 <br />562.5 <br />1975 <br />82.9 <br />15.8 <br />18.5 <br />102.1 <br />0.1 <br />87.4 <br />5.2 <br />131.0 <br />112.2 <br />0.9 <br />556.1 <br />1945 <br />94.4 <br />12.3 <br />12.7 <br />84.3 <br />9.6 <br />132.4 <br />3.2 <br />63.9 <br />127.3 <br />13.0 <br />553.0 <br />1977 <br />94.9 <br />22.6 <br />16.0 <br />116.9 <br />1.2 <br />46.0 <br />0.6 <br />95.0 <br />140.9 <br />8.6 <br />542.6 <br />1990 <br />81.9 <br />22.6 <br />7.1 <br />84.9 <br />1.2 <br />36.2 <br />0.7 <br />125.2 <br />153.3 <br />19.3 <br />532.4 <br />1966 <br />0.0 <br />1.9 <br />4.5 <br />59.4 <br />0.0 <br />42.7 <br />11.8 <br />169.6 <br />181.1 <br />17.5 <br />488.6 <br />1950 <br />43.7 <br />16.5 <br />6.0 <br />78.2 <br />1.9 <br />64.3 <br />0.2 <br />114.7 <br />128.2 <br />12.6 <br />466.4 <br />1962 <br />54.3 <br />15.5 <br />0.1 <br />98.6 <br />0.0 <br />102.5 <br />16.6 <br />69.0 <br />93.2 <br />10.7 <br />460.4 <br />1969 <br />533 <br />14.9 <br />8.8 <br />72.3 <br />0.0 <br />83.1 <br />4.9 <br />127.4 <br />83.8 <br />1.9 <br />450.8 <br />1947 <br />34.0 <br />14.7 <br />20.2 <br />88.4 <br />0.0 <br />83.9 <br />6.0 <br />114.7 <br />78.2 <br />10.7 <br />450.7 <br />1958 <br />78.8 <br />6.2 <br />20.4 <br />96.5 <br />2.1 <br />27.5 <br />0.0 <br />36.0 <br />136.5 <br />27.2 <br />431.2 <br />1949 <br />100.0 <br />18.2 <br />22.2 <br />44.2 <br />1.0 <br />19.3 <br />0.0 <br />43.0 <br />95.9 <br />7.8 <br />351.6 <br />1972 <br />19.5 <br />2.3 <br />0.7 <br />14.5 <br />0.0 <br />42.6 <br />0.0 <br />112.5 <br />127.5 <br />11.1 <br />330.8 <br />1970 <br />24.6 <br />1.3 <br />0.0 <br />52.7 <br />0.0 <br />11.8 <br />0.0 <br />114.6 <br />124.1 <br />0.2 <br />329.3 <br />1974 <br />0.0 <br />0.0 <br />0.0 <br />0.0 <br />0.0 <br />0.0 <br />0.0 <br />109.2 <br />173.0 <br />14.0 <br />296.2 <br />1988 <br />13.5 <br />0.9 <br />0.0 <br />19.4 <br />0.0 <br />36.1 <br />0.0 <br />120.8 <br />104.7 <br />0.0 <br />295.3 <br />1951 <br />46.2 <br />13.7 <br />15.4 <br />63.1 <br />0.3 <br />66.7 <br />3.5 <br />45.6 <br />35.2 <br />0.0 <br />289.7 <br />1980 <br />120.4 <br />6.8 <br />2.2 <br />9.1 <br />0.0 <br />0.3 <br />0.0 <br />0.0 <br />131.2 <br />9.8 <br />279.9 <br />1952 <br />13.8 <br />1.4 <br />0.0 <br />20.3 <br />0.0 <br />8.6 <br />0.0 <br />74.7 <br />131.4 <br />26.0 <br />276.3 <br />1971 <br />27.9 <br />3.8 <br />2.1 <br />46.2 <br />0.0 <br />18.8 <br />0.0 <br />0.0 <br />100.6 <br />7.4 <br />206.8 <br />1985 <br />0.0 <br />0.0 <br />0.0 <br />3.2 <br />0.0 <br />20.7 <br />0.0 <br />86.6 <br />80.6 <br />0.0 <br />191.1 <br />1986 <br />8.7 <br />2.0 <br />5.1 <br />25.2 <br />0.0 <br />0.1 <br />0.0 <br />67.7 <br />8.8 <br />0.0 <br />117.6 <br />1987 <br />0.0 <br />0.0 <br />0.0 <br />57.0 <br />0.0 <br />0.2 <br />0.0 <br />1.5 <br />47.5 <br />0.0 <br />106.2 <br />1983 <br />71.5 <br />0.0 <br />0.0 <br />17.1 <br />0.0 <br />0.1 <br />0.0 <br />0.0 <br />0.0 <br />0.0 <br />88.7 <br />1984 <br />26.8 <br />0.0 <br />0.0 <br />0.0 <br />0.0 <br />0.0 <br />0.0 <br />0.0 <br />56.6 <br />0.0 <br />83.5 <br />1973 <br />13.9 <br />0.6 <br />0.0 <br />12.0 <br />0.0 <br />0.0 <br />0.0 <br />0.0 <br />26.2 <br />0.0 <br />52.6 <br />Mean Shortaq <br />59.2 <br />10.9 <br />8.7 <br />64.9 <br />1.91 <br />55.6 <br />1 3.51 <br />91.3 <br />1 111.2 <br />1 9.9 <br />1 417.0 <br />Wet and Average years measuree against Average msueam now M-1 uonnuduui <br />Dry Years <br />Period 10/1 - 11115 1 11116 -1/31 1 2/1 - 2/14 1 2116 - 3/15 1 3/16 - 3/22 1 3/23 -5/10 1 5/11 - 9/15 1 9116 - 9/30 1 Total <br />Dry IFR, CFS <br />1,300 <br />600 <br />1,200 <br />2,250 <br />1,200 <br />1,700 <br />800 <br />Total KAF <br />118.6 <br />91.6 <br />33.3 <br />129.4 <br />16.7 <br />165.2 <br />203.1 <br />8.4 <br />319.0 <br />3.8 <br />297.3 <br />11.5 <br />272.7 <br />0.1 <br />271.9 <br />1956 <br />99.6 <br />17.3 <br />10.7 <br />65.9 <br />1.3 <br />98.2 <br />199.2 <br />1957 <br />117.5 <br />55.9 <br />14.3 <br />91.1 <br />6.4 <br />74.9 <br />100.5 <br />1955 <br />79.2 <br />4.0 <br />7.0 <br />42.2 <br />3.2 <br />92.9 <br />167.8 <br />1954 <br />86.7 <br />4.0 <br />0.0 <br />37.6 <br />0.9 <br />67.1 <br />151.6 <br />1961 <br />68.1 <br />5.5 <br />2.5 <br />61.0 <br />0.0 <br />71.4 <br />113.0 <br />1991 <br />64.2 <br />6.9 <br />1.1 <br />48.2 <br />0.6 <br />82.8 <br />113.4 <br />1964 <br />47.2 <br />3.1 <br />3.2 <br />65.0 <br />0.3 <br />41.7 <br />150.1 <br />1981 <br />66.7 <br />0.4 <br />19.0 <br />33.4 <br />1.5 <br />86.1 <br />86.3 <br />1959 <br />65.8 <br />13.9 <br />4.7 <br />24.5 <br />0.0 <br />1.8 <br />150.6 <br />1946 <br />23.4 <br />5.7 <br />1.5 <br />38.0 <br />0.0 <br />86.1 <br />117.1 <br />1953 <br />44.0 <br />0.6 <br />0.0 <br />33.1 <br />0.0 <br />31.8 <br />141.6 <br />1992 <br />74.6 <br />0.2 <br />0.0 <br />29.8 <br />0.0 <br />51.6 <br />85.1 <br />1963 <br />14.7 <br />0.7 <br />0.0 <br />16.7 <br />0.0 <br />43.8 <br />159.3 <br />Mean Shorta <br />65.5 <br />9.1 <br />4.91 <br />45.1 <br />1 1.1 <br />1 63.9 <br />1 133.5 <br />600 <br />Annual <br />17.9 <br />775.8 <br />17.9 <br />510.1 <br />2.2 <br />462.9 <br />17.9 <br />414.1 <br />17.9 <br />365.8 <br />10.4 <br />331.8 <br />6.9 <br />324.3 <br />8.4 <br />319.0 <br />3.8 <br />297.3 <br />11.5 <br />272.7 <br />0.1 <br />271.9 <br />17.9 <br />269.0 <br />13.8 <br />255.1 <br />1.2 <br />236.4 <br />10.0 <br />1 333.1 <br />Years were classified as being wet, average, or dry based on annual volume at the Grand Island gage for water years 1943 -1992 (33% Wet, 42% Average, and 25% Dry). <br />Each daily flow was compared against the daily flow target, and the sum of calculated shortages is shown for each time period. <br />The only difference between wet and average year Instream Flow Recommendations is the 10/1 -11/15 time period. For simplicity, the Wet and Average years are compared <br />against the Average Instream Flow Recommendation. <br />• 18 <br />