Parameter and Unit | Jan-March | April-June | July-Sept | Oct-Dec | WHO Standard |
pH | 7.37 ± 0.21 | 7.21 ± 0.09 | 7.30 ± 0.19 | 7.34 ± 0.12 | 6.5 - 8.5 |
Turbidity NTU | 64.49 ± 14.45 | 332.22 ± 143.27 | 425.66 ± 119.31 | 237.00 ± 203.64 | 5 |
Temperature ˚C | 25.57 ± 0.15 | 25.50 ± 0.26 | 25.17 ± 0.46 | 25.40 ± 0.20 | 30 |
Conductivity ms/cm | 312.15 ± 42.92 | 363.41 ± 31.91 | 331.33 ± 17.62 | 315.77 ± 51.69 | 1000 |
Total Dissolve Solids mg/L | 218.51 ± 30.05 | 254.39 ± 22.34 | 231.93 ± 12.33 | 221.04 ± 36.18 | 1000 |
Ammonia (NH3) mg/L | 0.92 ± 0.26 | 1.09 ± 0.66 | 1.92 ± 0.24 | 1.06 ± 0.19 | 0.5 (EU) |
Nitrite ( ) mg/L | 0.94 ± 0.23 | 0.66 ± 0.27 | 0.48 ± 0.17 | 0.53 ± 0.02 | 3 |
Nitrate (NO3) mg/L | 17.98 ± 0.41 | 17.35 ± 3.85 | 22.58 ± 1.17 | 20.22 ± 0.69 | 50 |
Chloride mg/L | 20.73 ± 4.82 | 22.67 ± 4.73 | 31.33 ± 26.58 | 22.10 ± 2.71 | 250 |
Total Alkalinity mg/L | 55.33 ± 6.43 | 58.33 ± 1.15 | 63.00 ± 1.00 | 63.33 ± 4.51 | 200 |
Total Hardness mg/L | 89.00 ± 5.57 | 78.33 ± 3.06 | 80.33 ± 8.39 | 75.33 ± 2.08 | 500 |
Calcium Hardness mg/L | 64.33 ± 7.64 | 55.33 ± 5.86 | 58.67 ± 1.53 | 55.67 ± 6.51 | 200 |
Magnesium Hardness mg/L | 24.67 ± 7.02 | 23.00 ± 8.66 | 21.67 ± 7.37 | 19.67 ± 6.43 | 150 |
Calcium mg/L | 25.73 ± 3.05 | 22.13 ± 2.34 | 23.47 ± 0.61 | 22.27 ± 2.60 | 200 |
Magnesium mg/L | 7.46 ± 0.89 | 6.42 ± 0.68 | 6.81 ± 0.18 | 6.46 ± 0.75 | 150 |
Arsenic mg/L | 0.00 ± 0.00 | 0.00 ± 0.00 | 0.00 ± 0.00 | 0.00 ± 0.00 | 0.01 |
Copper mg/L | 0.55 ± 0.31 | 1.57 ± 1.31 | 1.74 ± 0.57 | 1.19 ± 0.12 | 0.2 |
Lead mg/L | 0.00 ± 0.00 | 0.01 ± 0.01 | 0.00 ± 0.00 | 0.00 ± 0.00 | 0.01 |
Iron (Total) mg/L | 1.19 ± 0.08 | 1.52 ± 0.21 | 2.06 ± 0.52 | 1.96 ± 0.47 | 0.3 |
Zinc mg/L | 0.12 ± 0.08 | 0.17 ± 0.04 | 0.76 ± 0.97 | 1.61 ± 0.47 | 5 (USA) |
Fluoride mg/L | 0.59 ± 0.12 | 1.07 ± 0.47 | 1.50 ± 0.26 | 0.64 ± 0.28 | 1.5 |
Sulphate mg/L | 23.00 ± 2.00 | 22.90 ± 4.74 | 20.07 ± 1.01 | 21.67 ± 2.37 | 250 |
Phosphate mg/L | 20.45 ± 3.20 | 24.20 ± 2.52 | 25.84 ± 3.61 | 18.36 ± 1.15 | 5 |
Aluminium mg/L | 1.26 ± 0.94 | 0.45 ± 0.26 | 0.54 ± 0.10 | 0.52 ± 0.10 | 0.2 (EU) |
Manganese mg/L | 0.56 ± 0.40 | 0.41 ± 0.25 | 0.38 ± 0.22 | 0.37 ± 0.08 | 0.4 |