Department of Water Affairs HYMONTH V93 Output 24/08/2010 Site D2R006 Rietspruit @ Knellpoort Site D2R006 VarFrom 100.00 Surface Water Level in Metres VarTo 101.00 Mean Corrected Surface Water Level in Metres Figures are for period starting 0 hours. Mean Median Missing Year Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep Monthly Monthly Days 1988/89 [ ]M [ ]M [ ]M [ ]M [ ]M [ ]M [ ]M [ ]M [6.17] 6.21 6.41 6.47 [6.32] [6.31] 249 1989/90 6.54 6.70 6.90 6.94 6.74 6.74 6.73 6.68 6.74 6.88 6.95 7.03 6.80 6.74 0 1990/91 7.19 6.51 6.30 6.17 6.36 6.56 6.78 6.67 6.59 6.56 6.49 6.43 6.55 6.53 0 1991/92 6.65 7.17 7.24 7.27 7.09 6.94 6.82 6.69 6.59 6.52 6.37 5.71 6.76 6.75 0 1992/93 5.77 6.29 6.88 6.70 7.05 7.84 8.47 9.01 8.98 8.91 8.86 8.79 7.80 8.16 0 1993/94 8.80 9.04 9.08 9.28 12.08 13.23 13.12 13.00 12.88 12.80 12.80 12.73 11.57 12.76 0 1994/95 12.35 11.69 11.26 11.20 11.80 11.93 12.12 12.04 11.96 11.88 11.64 10.90 11.73 11.84 0 1995/96 10.06 10.34 11.18 11.90 12.52 12.80 12.74 12.66 12.57 12.49 12.47 12.43 12.01 12.48 0 1996/97 12.43 12.82 13.32 14.05 14.75 15.31 15.53 16.07 16.83 17.55 18.39 18.70 15.48 15.42 0 1997/98 18.61 18.48 18.34 18.27 18.57 19.43 19.68 19.55 19.45 19.38 19.33 19.30 19.03 19.31 0 1998/99 19.24 19.16 19.07 18.98 18.90 18.76 18.63 18.44 18.09 17.99 17.91 17.58 18.56 18.70 0 1999/ 0 16.69 16.27 16.38 17.25 17.93 18.16 18.29 18.44 18.38 18.32 18.26 18.22 17.72 18.19 0 2000/ 1 18.19 18.23 18.87 18.98 19.09 19.49 20.41 21.75 21.85 21.82 21.75 21.73 20.18 19.95 0 2001/ 2 21.69 23.72 24.60 24.43 24.35 24.29 24.17 24.05 24.03 23.96 23.96 24.28 23.96 24.11 0 2002/ 3 24.21 24.10 23.99 23.88 23.75 23.66 23.61 23.50 23.39 23.31 23.24 23.15 23.65 23.64 0 2003/ 4 22.81 22.46 22.30 22.18 22.12 22.15 22.28 22.02 21.49 20.89 20.13 19.34 21.68 22.14 0 2004/ 5 18.95 18.34 17.60 16.90 16.44 16.68 17.06 17.49 17.59 16.95 16.31 15.83 17.18 17.00 0 2005/ 6 15.52 15.61 15.60 15.44 16.72 19.07 21.86 23.05 23.04 22.99 23.16 23.76 19.65 20.47 0 2006/ 7 23.70 23.71 23.57 23.43 23.28 23.06 22.78 22.67 22.57 22.50 22.38 21.66 22.94 22.92 0 2007/ 8 21.48 21.41 21.29 21.06 20.69 20.35 20.13 19.99 19.69Q 19.27Q 18.66Q 17.99Q 20.17Q 20.24Q 0 2008/ 9 16.89Q 16.14Q 15.97Q 15.81Q 15.65Q 15.88Q 16.11Q 15.87Q 15.26Q 14.55Q 13.81Q 13.20Q 15.43Q 15.84Q 0 2009/10 13.25Q 13.85Q 14.12Q 14.00Q 14.02Q [13.97] [ ]M [ ]M [ ]M [ ]M [ ]M [ ]M [13.87] [13.99] 204 453 Tot Mean 15.29Q 15.34Q 15.42Q 15.44Q 15.71Q [16.01] 16.37Q 16.48Q [15.91] 15.80Q 15.68Q 15.49Q [15.41] Mean Med. 16.69Q 16.14Q 15.97Q 15.81Q 16.44Q [16.68] 17.67Q 17.97Q [17.59] 17.55Q 17.91Q 17.58Q [16.78] Med. Max 24.21Q 24.10Q 24.60Q 24.43Q 24.35Q [24.29] 24.17Q 24.05Q [24.03] 23.96Q 23.96Q 24.28Q [23.96] Max Min 5.77Q 6.29Q 6.30Q 6.17Q 6.36Q [6.56] 6.73Q 6.67Q [6.17] 6.21Q 6.37Q 5.71Q [6.32] Min OK 100% 100% 100% 100% 100% 97% 100% 100% 99% 100% 100% 100% 100% OK Cnt 21 21 21 21 21 21 20 20 21 21 21 21 22 Cnt ------------------ Notes ------------------- All recorded data is continuous and reliable except where the following tags are used... M ... Missing Data Q ... Data Not Audited Department of Water Affairs HYMONTH V93 Output 24/08/2010 Site D2R006 Rietspruit @ Knellpoort Site D2R006 VarFrom 100.00 Surface Water Level in Metres VarTo 101.00 Maximum Corrected Surface Water Level in Metres Figures are for period starting 0 hours. Annual Missing Year Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep Max Days 1988/89 [ ]M [ ]M [ ]M [ ]M [ ]M [ ]M [ ]M [ ]M [6.18] 6.32 6.47 6.50 [6.50] 249 1989/90 6.59 6.77 7.02 7.02 6.78 6.80 6.76 6.70 6.82 6.92 6.99 7.12 7.12 0 1990/91 7.28 7.27 6.36 6.22 6.41 6.85 6.84 6.73 6.62 6.58 6.53 6.46 7.28 0 1991/92 7.20 7.20 7.36 7.35 7.17 7.02 6.88 6.75 6.63 6.55 6.49 5.74 7.36 0 1992/93 5.93 6.78 6.93 6.80 7.52 8.18 8.76 9.08 9.03 8.94 8.88 8.84 9.08 0 1993/94 8.93 9.10 9.18 9.49 13.18 13.27 13.19 13.05 12.93 12.83 12.82 12.77 13.27 0 1994/95 12.67 11.75 11.59 11.56 11.90 12.14 12.15 12.07 12.00 11.92 11.84 11.17 12.67 0 1995/96 10.38 10.63 11.63 12.48 12.63 12.85 12.78 12.70 12.61 12.53 12.49 12.46 12.85 0 1996/97 12.53 13.09 13.68 14.45 15.03 15.41 15.69 16.45 17.19 17.96 18.74 18.73 18.74 0 1997/98 18.66 18.55 18.42 18.31 19.30 19.73 19.73 19.63 19.48 19.41 19.35 19.32 19.73 0 1998/99 19.29 19.20 19.13 19.00 18.97 18.84 18.71 18.59 18.26 18.03 17.96 17.86 19.29 0 1999/ 0 17.06 16.35 16.84 17.88 17.99 18.33 18.33 18.47 18.42 18.36 18.29 18.25 18.47 0 2000/ 1 18.22 18.50 19.08 19.05 19.23 19.85 21.16 21.88 21.87 21.84 21.78 21.75 21.88 0 2001/ 2 21.93 24.75 24.81 24.51 24.41 24.32 24.24 24.11 24.06 24.00 24.21 24.29 24.81 0 2002/ 3 24.27 24.17 24.02 23.94 23.80 23.71 23.67 23.56 23.45 23.35 23.27 23.20 24.27 0 2003/ 4 23.12 22.52 22.39 22.23 22.15 22.19 22.32 22.26 21.75 21.20 20.56 19.62 23.12 0 2004/ 5 19.16 18.70 17.95 17.26 16.58 16.84 17.31 17.68 17.75 17.30 16.59 16.01 19.16 0 2005/ 6 15.68 15.67 15.68 15.86 17.98 20.94 22.98 23.07 23.06 23.01 23.77 23.78 23.78 0 2006/ 7 23.73 23.74 23.66 23.52 23.37 23.20 22.80 22.73 22.60 22.54 22.46 22.15 23.74 0 2007/ 8 21.51 21.46 21.41 21.18 20.91 20.49 20.21 20.07 19.83Q 19.51Q 18.96Q 18.33Q 21.51Q 0 2008/ 9 17.62Q 16.36Q 16.03Q 15.89Q 15.74Q 16.05Q 16.16Q 16.09Q 15.59Q 14.94Q 14.17Q 13.44Q 17.62Q 0 2009/10 13.62Q 14.05Q 14.17Q 14.08Q 14.05Q [14.02] [ ]M [ ]M [ ]M [ ]M [ ]M [ ]M [14.17] 204 453 Total Mean 15.49Q 15.55Q 15.59Q 15.62Q 15.96Q [16.24] 16.53Q 16.58Q [16.01] 15.91Q 15.84Q 15.61Q [16.66] Mean Med. 17.06Q 16.35Q 16.03Q 15.89Q 16.58Q [16.84] 17.82Q 18.08Q [17.75] 17.96Q 17.96Q 17.86Q Med. Max 24.27Q 24.75Q 24.81Q 24.51Q 24.41Q [24.32] 24.24Q 24.11Q [24.06] 24.00Q 24.21Q 24.29Q [24.81] Max Min 5.93Q 6.77Q 6.36Q 6.22Q 6.41Q [6.80] 6.76Q 6.70Q [6.18] 6.32Q 6.47Q 5.74Q [6.50] Min OK 100% 100% 100% 100% 100% 97% 100% 100% 99% 100% 100% 100% 100% OK Cnt 21 21 21 21 21 21 20 20 21 21 21 21 22 Cnt ------------------ Notes ------------------- All recorded data is continuous and reliable except where the following tags are used... M ... Missing Data Q ... Data Not Audited Department of Water Affairs HYMONTH V93 Output 24/08/2010 Site D2R006 Rietspruit @ Knellpoort Site D2R006 VarFrom 100.00 Surface Water Level in Metres VarTo 101.00 Minimum Corrected Surface Water Level in Metres Figures are for period starting 0 hours. Annual Missing Year Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep Min Days 1988/89 [ ]M [ ]M [ ]M [ ]M [ ]M [ ]M [ ]M [ ]M [6.15] 6.18 6.32 6.47 [6.15] 249 1989/90 6.49 6.59 6.77 6.78 6.68 6.66 6.69 6.66 6.70 6.81 6.91 6.97 6.49 0 1990/91 7.11 6.34 6.21 6.12 6.22 6.31 6.73 6.62 6.57 6.53 6.45 6.41 6.12 0 1991/92 6.37 7.12 7.10 7.17 7.02 6.88 6.75 6.63 6.55 6.49 5.72 5.66 5.66 0 1992/93 5.64 5.87 6.78 6.62 6.69 7.52 8.18 8.76 8.94 8.88 8.84 8.73 5.64 0 1993/94 8.74 8.92 9.03 9.18 9.49 13.18 13.04 12.93 12.83 12.79 12.77 12.67 8.74 0 1994/95 11.75 11.59 10.88 10.97 11.56 11.76 12.07 12.00 11.92 11.84 11.17 10.37 10.37 0 1995/96 9.85 10.02 10.63 11.63 12.44 12.63 12.70 12.61 12.53 12.47 12.44 12.41 9.85 0 1996/97 12.40 12.53 13.09 13.68 14.45 15.03 15.39 15.69 16.45 17.19 17.96 18.66 12.40 0 1997/98 18.55 18.39 18.28 18.22 18.17 19.30 19.63 19.48 19.41 19.35 19.30 19.29 18.17 0 1998/99 19.17 19.13 19.00 18.95 18.84 18.71 18.55 18.26 18.03 17.96 17.86 17.06 17.06 0 1999/ 0 16.35 16.20 16.18 16.84 17.88 17.97 18.24 18.26 18.36 18.29 18.22 18.18 16.18 0 2000/ 1 18.13 18.10 18.50 18.95 19.04 19.23 19.85 21.15 21.83 21.78 21.72 21.71 18.10 0 2001/ 2 21.64 21.93 24.51 24.36 24.30 24.24 24.11 24.00 24.00 23.91 23.88 24.21 21.64 0 2002/ 3 24.17 24.01 23.94 23.80 23.69 23.59 23.56 23.45 23.35 23.27 23.19 23.11 23.11 0 2003/ 4 22.51 22.39 22.23 22.14 22.09 22.09 22.16 21.75 21.20 20.56 19.62 19.16 19.16 0 2004/ 5 18.70 17.95 17.26 16.58 16.37 16.51 16.84 17.31 17.30 16.59 16.01 15.68 15.68 0 2005/ 6 15.43 15.53 15.37 15.31 15.86 17.98 20.94 22.98 23.01 22.97 22.97 23.73 15.31 0 2006/ 7 23.66 23.66 23.52 23.36 23.20 22.80 22.73 22.60 22.54 22.46 22.15 21.46 21.46 0 2007/ 8 21.45 21.36 21.12 20.91 20.49 20.21 20.07 19.83 19.51Q 18.96Q 18.33Q 17.62Q 17.62Q 0 2008/ 9 16.36Q 16.00Q 15.89Q 15.64Q 15.58Q 15.74Q 16.05Q 15.59Q 14.94Q 14.17Q 13.44Q 12.95Q 12.95Q 0 2009/10 12.90Q 13.62Q 14.05Q 13.92Q 14.00Q [13.91] [ ]M [ ]M [ ]M [ ]M [ ]M [ ]M [12.90] 204 453 Total Mean 15.11Q 15.11Q 15.26Q 15.29Q 15.43Q [15.82] 16.21Q 16.33Q [15.82] 15.69Q 15.49Q 15.36Q [13.67] Mean Med. 16.35Q 16.00Q 15.89Q 15.64Q 15.86Q [16.51] 17.54Q 17.78Q [17.30] 17.19Q 17.86Q 17.06Q Med. Max 24.17Q 24.01Q 24.51Q 24.36Q 24.30Q [24.24] 24.11Q 24.00Q [24.00] 23.91Q 23.88Q 24.21Q [23.11] Max Min 5.64Q 5.87Q 6.21Q 6.12Q 6.22Q [6.31] 6.69Q 6.62Q [6.15] 6.18Q 5.72Q 5.66Q [5.64] Min OK 100% 100% 100% 100% 100% 97% 100% 100% 99% 100% 100% 100% 100% OK Cnt 21 21 21 21 21 21 20 20 21 21 21 21 22 Cnt ------------------ Notes ------------------- All recorded data is continuous and reliable except where the following tags are used... M ... Missing Data Q ... Data Not Audited