Department of Water Affairs HYMONTH V93 Output 26/08/2010 Site D1H011 Kraai River @ Roodewal Site D1H011 VarFrom 100.00 Surface Water Level in Metres VarTo 154.00 Total Surface Water Volume in Million Cub Metres Figures are for period starting 0 hours. Mean Annual Missing Year Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep Monthly Total Days 1965/66 [44.96] 67.29 6.51 56.77 140.11 8.04 2.09 1.90 2.76 1.18 0.47 0.40 [27.71] [332.46] 6 1966/67 0.54 18.29 10.32 54.86 126.23 71.77 244.49 162.49 263.54 40.99 20.71 10.98 85.43 1025.2 0 1967/68 3.36L 11.52 2.75 0.55 2.75 [4.01] 8.10 13.30L 3.35L 4.72 1.74 25.02 [6.76] [81.17] 4 1968/69 7.57 [3.09] 32.89 4.36 12.78 175.40 78.18 14.98 10.85 5.76 7.73 2.11 [29.64] [355.70] 21 1969/70 22.25 16.15 3.08 8.30 12.41 0.77L [0.00] [0.00] 0.02 0.46 9.86 28.79 [8.51] [102.09] 30 1970/71 128.60 7.00 [92.25] 39.93 68.15 49.91 155.60 91.69 14.55L [ ]M [ ]M 12.75 [66.04] [660.43] 69 1971/72 16.53 [15.02] [5.81] 104.19 [44.36] [ ]M [6.85] 35.36 21.27 10.30 4.63 2.78 [24.28] [267.10] 78 1972/73 20.70 28.54 5.08 0.05 20.17L 17.59 22.56 6.40 3.42 1.13 [2.64] 1.28 [10.80] [129.56] 8 1973/74 5.94 6.18 8.81 [29.33][121.56] 545.23 214.38 255.78 109.46 44.83 246.69 66.60 [137.90][1654.7 ] 19 1974/75 23.60 93.31 88.23 13.02 50.98 122.55 25.07 16.28 13.15 51.34 12.05 28.13 44.81 537.69 0 1975/76 22.60 19.50 145.48 267.19 348.68 [34.99] [ ]M [ ]M [ ]M [ ]M [10.22] 34.63 [110.41] [883.29] 161 1976/77 [48.63] [54.92] 24.53L 13.33 [42.75] 88.58 18.66 22.14 7.74 7.32 [2.82] [ ]M [30.13] [331.42] 84 1977/78 [ ]M [1.40] 27.55 69.85 20.56 67.41 287.34 47.75 15.08 9.64 6.84 65.17 [56.24] [618.60] 56 1978/79 62.78 25.60 [13.98] 26.83 24.16 21.34 2.80 4.25 3.82 10.58 35.47 34.77 [22.20] [266.39] 20 1979/80 93.52 21.06 41.33 [11.61] 26.21 63.66 8.41 1.85 1.34 1.20 0.94 2.15 [22.77] [273.29] 7 1980/81 12.24 0.82 14.26 35.44 110.67 88.75 10.91 20.33 117.26 8.67 93.68 98.55 50.97 611.59 0 1981/82 14.24 16.20 51.04 10.51 6.10 30.18 59.02 37.65 27.35 43.19 22.13 11.46 27.42 329.07 0 1982/83 8.05 216.29 21.62 2.17 0.21 0.06 1.31 7.99 13.25 32.71 22.26 7.43 27.78 333.35 0 1983/84 15.22 8.67 25.83 73.88 4.44 11.39 26.74 32.40 4.49 3.84 4.53 12.86 18.69 224.28 0 1984/85 4.05 26.98 13.93 15.99 203.45 113.60 11.45 2.40 3.32 3.89 0.76 0.23 33.34 400.05 0 1985/86 15.42 159.49 175.27 68.99 [52.84] 36.24 6.00 3.14 3.35 1.77 1.90 13.32 [44.81] [537.74] 8 1986/87 67.88 258.75 25.54 6.51 6.87 23.22 38.74L 5.83L 3.03 1.91 6.24 131.81 48.03L 576.31L 0 1987/88 324.25 66.24 16.83 8.39 539.05 328.78 193.74 65.16 64.02 29.38 13.18 230.86 156.66 1879.8 0 1988/89 58.37 57.70 218.40 213.44 287.03 144.74 172.65 96.60 52.25 27.53 17.75 14.05 113.38 1360.5 0 1989/90 8.79 106.28 120.56 62.57 17.62 136.60 118.21 37.35 20.74 51.43 19.84 34.44 61.20 734.43 0 1990/91 11.67 3.92 9.88 90.34 258.25 135.55 24.79 10.91 8.44 7.51 4.30 4.21 47.48 569.77 0 1991/92 289.11 113.01 139.86 22.43 7.25 5.40 4.15L 2.39L 1.49L 1.49 1.44 3.87 49.32L 591.89L 0 1992/93 24.55 24.54 1.32 0.45 24.38 25.95 22.00 22.91 3.10 1.68 1.23 0.61 12.73 152.74 0 1993/94 91.19 59.07 29.39 161.64 247.00 79.54 11.98 7.26 3.59 3.00 11.29 3.80 59.06 708.76 0 1994/95 1.23 0.57 1.08 9.80 1.80 56.75 27.42 12.91 7.85 2.82 1.09 1.32 10.39 124.65 0 1995/96 8.08 2.74 91.93 98.35 104.89 60.54 21.84 5.94 2.58 2.00 7.91 3.30 34.17 410.09 0 1996/97 7.37 263.30 69.78 120.54 30.80 178.62 189.35 52.45 172.85 57.48 25.79 11.58 98.33 1179.9 0 1997/98 14.49 3.20 8.65 22.66 141.69 204.17 64.00 90.74 20.19 9.83 7.33 9.57 49.71 596.52 0 1998/99 11.23 87.26 108.81 50.44 53.60 30.15 10.11 5.20 3.02 2.11 1.16 0.41 30.29 363.51 0 1999/ 0 2.79 3.09 104.19 177.91 60.61 139.14 106.79 74.89 23.08 14.81 8.74 84.54 66.72 800.60 0 1126 Tot ------------------ Notes ------------------- All recorded data is continuous and reliable except where the following tags are used... L ... Linear Fill M ... Missing Data Q ... Data Not Audited Department of Water Affairs HYMONTH V93 Output 26/08/2010 Site D1H011 Kraai River @ Roodewal Site D1H011 VarFrom 100.00 Surface Water Level in Metres VarTo 154.00 Total Surface Water Volume in Million Cub Metres Figures are for period starting 0 hours. Mean Annual Missing Year Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep Monthly Total Days 2000/ 1 35.48 55.32 49.27 23.88 50.16 47.44 149.98 107.92 18.00 11.30L 8.11L 132.84 57.48L 689.70L 0 2001/ 2 34.11 431.50 473.05 209.68 90.42 59.17 24.63 24.26 92.33 61.26 412.36 352.31 188.75 2265.0 0 2002/ 3 45.21 19.31 27.85 47.67 19.05 38.36 12.79 8.86 4.72 3.16 4.82 6.63 19.87 238.42 0 2003/ 4 2.24 1.66 7.22 35.13 52.34 133.75 156.18 25.89 9.79 6.69 8.42 77.11 43.04 516.43 0 2004/ 5 44.26 13.39 15.75 32.88 24.08 19.02 40.18 22.78 16.75 5.64 6.70 4.31 20.48 245.75 0 2005/ 6 4.07 24.81 4.92 105.76 315.32 167.97 131.34 169.94 48.43 20.67 215.22 80.00 107.37 1288.4 0 2006/ 7 204.21 229.15 46.05 18.34 23.88 7.77 9.96 5.95 6.45 4.64 4.17 1.36 46.83 561.93 0 2007/ 8 17.57 16.48 [125.30] [ ]M [36.89] 55.03 25.68 23.32 96.10 [8.93] [ ]M [ ]M [45.03] [405.30] 132 2008/ 9 [ ]M [ ]M [ ]M [ ]M [ ]M [ ]M [ ]M [ ]M [35.89] 38.36Q 41.71Q 9.28Q [31.31] [125.24] 253 2009/10 201.06Q 176.50Q 30.53Q 55.22Q 33.57Q 26.44Q [24.95] [ ]M [ ]M [ ]M [ ]M [ ]M [78.32] [548.26] 170 1126 Tot Mean [48.37] [64.43] [57.65] [57.70] [87.87] [85.01] [64.45] [39.46] [31.49] [15.65] [31.83] 39.47Q [52.50] [597.54] Mean Med. [17.57] [22.80] [26.69] [35.13] [43.55] [56.75] [24.95] [21.23] [10.85] [7.42] [7.82] 11.52Q Med. Max [324.25][431.50][473.05][267.19][539.05][545.23][287.34][255.78][263.54] [61.26][412.36] 352.31Q [188.75][2265.0 ] Max Min [0.54] [0.57] [1.08] [0.05] [0.21] [0.06] [0.00] [0.00] [0.02] [0.46] [0.47] 0.23Q [6.76] [81.17] Min OK 97% 95% 97% 99% 97% 98% 97% 98% 99% 98% 97% 100% 98% 98% OK Cnt 43 44 44 43 44 43 43 42 43 42 42 42 45 45 Cnt ------------------ Notes ------------------- All recorded data is continuous and reliable except where the following tags are used... L ... Linear Fill M ... Missing Data Q ... Data Not Audited