Calculation of WQI of water samples in monsoon season of Chandlodia Lake
S.No Parameter Observed Value (Vn) Standard Values (Sn) Ideal Value (V10) Unit Weight (WN) Quality Rating (Qn) WnQn
1 Electrical conductivity (Ω/cm) 3.47 300 0 0.371 1.15 0.42
2 Total Dissolve Solid (mg/L) 1224 500 0 0.0037 244.8 0.90
3 pH 8.6 7.5 7 0.219 320 70.08
4 Alkalinity (mg/L) 224 120 0 0.0155 186.66 2.89
5 Tatal Hardness (mg/L) 348 300 0 0.0062 116 0.71
6 Calcium (mg/L) 94 75 0 0.025 125.33 3.13
7 Magnesium (mg/L) 41 30 0 0.061 136.66 8.33
8 Dissolved Oxygen (mg/L) 5.89 5 14.6 0.3723 90.72 33.77
9 Chloride (mg/L) 104 250 0 0.0074 41.6 0.30
10 Nitrate (mg/L) 7.2 45 0 0.0412 16 0.65
11 Biochemical Qxygen Demand (mg/L) 3.22 5 0 0.3723 64.4 23.97
          ΣWn= 1.4946 ΣQn = 1343.3525 ΣWnQn = 145.2190454
WQI = 97.16248187
Table 3: Calculation of WQI of water samples in monsoon season of Chandlodia Lake.