Parameter | BSU | Kakoba | Katete | GBK | Spencon | Mean | SD |
Colour (PtCo) | 699 | 905 | 872 | 749 | 651 | 775.2 | 109.701 |
Turbidity (NTU) | 98.7 | 176.3 | 124.7 | 365.3 | 92.7 | 171.54 | 113.227 |
TSS (mg/L) | 44.7 | 123.3 | 71.7 | 209.3 | 97.8 | 109.36 | 63.078 |
Hardness (mg/L) | 62 | 62.3 | 62 | 66 | 61.4 | 62.74 | 1.851 |
Alkalinity (mg/L) | 28.7 | 39.3 | 86 | 40 | 45.5 | 47.9 | 22.149 |
pH | 5.92 | 5.93 | 5.9 | 5.92 | 5.96 | 5.926 | 0.022 |
TDS (mg/L) | 53.2 | 55.2 | 65.5 | 67.2 | 51.6 | 58.54 | 7.268 |
EC (µs/cm) | 103.93 | 113.4 | 105.3 | 195.8 | 95.6 | 122.81 | 41.290 |
Salinity (mg/L) | 0.053 | 0.067 | 0.057 | 0.097 | 0.053 | 0.065 | 0.019 |
Temeperature (˚C) | 23.07 | 23.13 | 22.83 | 23 | 22.73 | 22.952 | 0.167 |
Sulphate (mg/L) | 9.48 | 9.07 | 10.67 | 8.41 | 9.33 | 9.392 | 0.824 |
COD (mg/L) | 143.7 | 240 | 284.7 | 302 | 89.7 | 212.02 | 91.912 |
BOD (mg/L) | 59 | 65.3 | 101.7 | 103.7 | 48 | 75.54 | 25.565 |
DO (mg/L) | 17.41 | 21.55 | 25.35 | 23.1 | 15.11 | 20.50 | 4.183 |
NH3-N (mg/L) | 15.73 | 16.65 | 20.3 | 11.3 | 10.53 | 14.90 | 4.030 |
Mg (mg/L) | 6.73 | 7.55 | 7.16 | 5.83 | 5.51 | 6.556 | 0.867 |
Ca (mg/L) | 10.15 | 8.92 | 8.28 | 7.34 | 7.22 | 8.38 | 1.211 |
Fe (mg/L) | 0.663 | 0.407 | 0.554 | 0.737 | 0.511 | 0.574 | 0.129 |
Mn (mg/L) | 0.145 | 0.181 | 0.077 | 0.079 | 0.103 | 0.117 | 0.045 |