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<br />... .." . <br /> <br />. <br /> <br />. <br /> <br />. <br /> <br />. RANKING OF THE 75 LARGEST 602(A) REQUIREO STORAGE VALUES' <br /> <br />o <br />Q <br />['\,) <br />00 <br />Cl> <br />c:.::> <br /> <br />CASE 2-B: CASE 2 WITH 6,12% ALLOWABLE OEPLETION SHORTAGE <br /> <br />INFLOW: THE AVERAGE NATURAL RUNOFF AT LEES FERRY, FOR THE SPECIFIC PERIOO (SEE TABLE) <br />DEPLETIONS: EITHER 5.8 MAF OR THE USBR PROJECTED DEPLETIONS AVERAGED FROM 1985 TO THE END OF THE SPECIFIC PERIOD (SEE TABLE) <br />ALLOWABLE OEPLETION SHORTAGE = 6.12 PERCENT MINIMUM ANNUAL RELEASE FROM LAKE POWELL = 8.23 MAF <br />INITIAL SEOIMENT ACCUMULATION (1985) = 1.342 MAF BANK STORAGE COEFFICIENT = .00 <br />ANNUAL SEDIMENT LOAD = 61000.0 ACRE-FEET A MINIMUM POWER POOL OF .000 MAF IS MAINTAINED IN THE UPPER BASIN RESERVOIRS <br /> <br />REQUIREO STORAGE = (AVERAGE OEPLETION - AVERAGE INFLOW + MINIMUM RELEASE + ANNUAL SEDIMENT LOAO) X LENGTH OF PERIOO <br />+ INITIAL SEDIMENT ACCUMULATION + VQLUME NEEOEO TO MAINTAIN MINIMUM POWER POOL <br />REQUIREO STORAGE IS COMPUTED FOR ALL HISTORICAL SEQUENTIAL RUNOFF PERIOOS OF ALL LENGTHS (1906-1983 HYDROLOGIC RECORD) . <br /> LENGTH OF AVERAGE AVERAGE REQUIRED PROBABILITY <br /> PERIOO BEGINNING INFLOW OEPLETION STORAGE (PLOTTING <br /> RANKING (YEARS) OF PERIOO (MAF) (MAF) (MAF) POS IT I ON) <br /> ------- --------- --------- ---- --- --------- -------- ----------- <br /> 1 2 1976 7_86 4_02 9.75 99.97 <br /> 2 4 1953 10,22 4.04 B.79 99.94 <br /> 3 1 1977 5.02 4.02 8.39 99.90 <br /> 4 3 1953 9_79 4_03 8_20 99.87 <br /> 5 3 1954 9,89 4.03 7.90 99.84 <br /> 6 2 1954 9.08 4,02 7.31 99.81 <br /> 7 3 1976 10.12 4.03 7.19 99.77 <br /> 8 3 1959 10.15 4.03 7.11 99.74 <br /> 9 1 1934 6.63 4,02 6.78 99.71 <br /> 10 2 1933 9.38 4_02 6_72 99.68 <br /> 11 2 1934 9.45 4.02 6.57 99.64 <br /> 12 3 1933 10.35 4.03 6,53 99,61 <br /> 13 6 1959 11.38 4.13 6,07 99.58 <br /> 14 1 1981 7.41 4.02 5.99 99.55 <br /> 15 2 1953 9.79 4.02 5,91 99.51 . <br /> 16 2 1977 9.83 4.02 5_82 99_48 <br /> 17 3 1975 10.62 4.03 5.71 99.45 <br /> 18 2 1963 10.03 4.02 5_42 99.42 <br /> 19 1 1954 8.37 4.02 5.04 99.38 <br /> 20 1 1931 8,63 4,02 4,77 99.35 <br /> 21 4 1931 11,23 4.04 4,73 99.32 <br /> 22 5 1931 11.44 4,04 4.56 99.29 <br /> 23 4 1974 11.29 4,04 4.51 99.25 <br /> 24 2 1939 10.55 4.02 4.38 99.22 <br /> 25 5 1959 11.50 4.04 4.29 99.19 <br /> 26 2 1959 10.60 4_02 4_27 99.16 <br /> 27 2 1960 10.61 4,02 4,25 99.12 <br /> 28 2 1955 10.65 4.02 4.18 99.09 <br /> 29 3 1934 11.13 4.03 4.17 99.06 <br /> 30 1 1959 9.23 4.02 4.17 99.03 <br /> 31 1 1961 9,25 4.02 4.16 9B.99 <br /> 32 1 1963 9.26 4.02 4,14 98.96 <br /> 33 4 1933 11.38 4.04 4.14 98.93 <br /> 34 1 1940 9,3B 4.02 4,02 9B.90 <br /> 35 12 1953 12.18 4.36 3.75 98.86 <br /> 36 9 1953 12.04 4.28 3.73 98.83 <br /> 37 1 19'35 9.80 4.02 3_61 98.80 <br /> 38 4 1975 11,63 4,04 3,16 98.77 <br /> 39 5 1960 11.81 4,04 2,73 98,73 <br /> 40 1 1976 10.71 4.02 2,69 98.70 <br />