| Minimum | Maximum | Mean | Std. deviation | Variance | Skewness | Kurtosis | WHO standard |
---|---|---|---|---|---|---|---|---|
pH | 6.36 | 7.02 | 6.68 | 0.18 | 0.03 | 0.27 | 0.84 | 6.5–8.5 |
Conductivity (μS/cm) | 58.03 | 128.97 | 85.37 | 25.21 | 635.70 | 0.65 | − 0.79 | 500 |
Turbidity (NTU) | 31.60 | 3000.00 | 1652.86 | 1263.92 | 1597.38 | − 0.12 | − 1.89 | 5 |
Alkalinity (mg/L) | 20.00 | 161.00 | 79.20 | 42.63 | 1817.29 | 0.44 | 0.14 | 200 |
TDS (mg/L) | 29.03 | 64.33 | 42.60 | 12.60 | 158.74 | 0.64 | − 0.79 | < 600 |
Temperature (°C) | 25.00 | 28.00 | 26.26 | 0.88 | 0.78 | 0.95 | 0.80 | < 25 °C |
TH (mg/L) | 51.76 | 168.57 | 92.31 | 41.05 | 1685.14 | 1.12 | 0.15 | 500 |
Colour (PtCo) | 364.62 | 34,615.35 | 19,071.33 | 14,583.67 | 2126.65 | − 0.12 | − 1.89 | 15 |
CaH (mg/L) | 30.74 | 100.26 | 55.15 | 24.40 | 595.43 | 1.09 | 0.08 | – |
MgH (mg/L) | 21.02 | 68.31 | 37.16 | 16.66 | 277.41 | 1.17 | 0.26 | 200 |
NO3− (mg/L) | bd | 1.00 | 0.38 | 0.31 | 0.10 | 0.55 | − 1.22 | 45 |
K+ (mg/L) | 0.40 | 3.90 | 1.00 | 1.07 | 1.15 | 2.66 | 7.50 | 12 |
Na+ (mg/L) | 2.90 | 5.10 | 3.81 | 0.79 | 0.63 | 0.80 | − 0.64 | 200 |
Cl− (mg/L) | 11.98 | 69.96 | 27.76 | 19.35 | 374.46 | 1.66 | 1.80 | 250 |
Mg2+ (mg/L) | 5.13 | 16.66 | 8.98 | 4.04 | 16.33 | 1.19 | 0.30 | 50 |
Ca2+ (mg/L) | 12.80 | 41.60 | 22.40 | 10.12 | 102.39 | 1.19 | 0.28 | 75 |
SO42− (mg/L) | bd | 1.00 | 0.41 | 0.33 | 0.11 | − 0.06 | − 2.08 | 250 |
CO32− (mg/L) | 0.01 | 0.16 | 0.05 | 0.05 | bd | 1.95 | 4.34 | – |
HCO3− (mg/L) | 19.99 | 160.84 | 78.63 | 43.20 | 1866.47 | 0.41 | 0.02 | 300 |
Free CO2 (mg/L) | 17.57 | 44.63 | 30.02 | 9.20 | 84.63 | − 0.34 | − 0.82 | – |
Total CO2 (mg/L) | 35.17 | 172.11 | 99.24 | 44.21 | 1954.48 | − 0.14 | − 0.72 | – |
Fe (mg/L) | 0.63 | 6.44 | 3.41 | 1.88 | 3.55 | − 0.10 | − 0.95 | 0.3 |
Zn (mg/L) | bd | 0.02 | 0.01 | 0.00 | 0.00 | − 0.24 | − 0.31 | 3.0 |