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Table 4

Regional classification of physico-chemical parameters

Physico-chemical parametersRegion 1Region 2Region 3Region 4Region 5
pH <7.68 7.68–7.72 7.73–7.77 7.78–7.83 >7.83 
Electrical conductivity (μS/cm) <716.85 716.85–720.88 720.89–724.92 724.93–728.96 >728.96 
Chloride (mg/L) <49.65 49.65–50.11 50.12–50.57 50.58–51.03 >51.03 
Nitrate (mg/L) <18.12 18.12–33.14 33.15–48.17 48.18–63.20 >63.20 
Sulphate (mg/L) <43.17 43.17–49.51 49.52–55.86 55.87–62.22 >62.22 
Total hardness (mg/L) <248.70 248.70–250.80 250.81–252.92 252.93–255.03 >255.03 
Potassium (mg/L) <8.3 8.3–10.3 10.4–12.3 12.4–14.1 >14.1 
Sodium (mg/L) <66.08 66.08–66.86 66.87–67.66 67.67–68.45 >68.45 
Calcium (mg/L) <44.29 44.29–47.80 47.81–51.31 51.32–54.83 >54.83 
Silicon dioxide/silica (mg/L) <25.44 25.44–25.66 25.67–25.88 25.89–26.11 >26.11 
Magnesium (mg/L) <22.85 22.85–25.24 25.25–26.82 26.83–29.93 >29.93 
Physico-chemical parametersRegion 1Region 2Region 3Region 4Region 5
pH <7.68 7.68–7.72 7.73–7.77 7.78–7.83 >7.83 
Electrical conductivity (μS/cm) <716.85 716.85–720.88 720.89–724.92 724.93–728.96 >728.96 
Chloride (mg/L) <49.65 49.65–50.11 50.12–50.57 50.58–51.03 >51.03 
Nitrate (mg/L) <18.12 18.12–33.14 33.15–48.17 48.18–63.20 >63.20 
Sulphate (mg/L) <43.17 43.17–49.51 49.52–55.86 55.87–62.22 >62.22 
Total hardness (mg/L) <248.70 248.70–250.80 250.81–252.92 252.93–255.03 >255.03 
Potassium (mg/L) <8.3 8.3–10.3 10.4–12.3 12.4–14.1 >14.1 
Sodium (mg/L) <66.08 66.08–66.86 66.87–67.66 67.67–68.45 >68.45 
Calcium (mg/L) <44.29 44.29–47.80 47.81–51.31 51.32–54.83 >54.83 
Silicon dioxide/silica (mg/L) <25.44 25.44–25.66 25.67–25.88 25.89–26.11 >26.11 
Magnesium (mg/L) <22.85 22.85–25.24 25.25–26.82 26.83–29.93 >29.93 
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