Direction: Following chemical species were reported for water sample from a well:
| Specials | Concentration (milli equivalent/L) |
| Choride (Cl–) | 15 |
| Sulphate (SO42–) | 15 |
| Carbonate (CO32–) | 05 |
| Bicarbonate (HCO3–) | 30 |
| Cacium (Ca2+) | 12 |
| Magnesium (Mg2+) | 18 |
| pH | 8.5 |
Alkalinity present in the water in mg/L as CaCO3 is
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