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Frequency (%) of samples exceeding WHO guideline values for physicochemical and metal parameters.
| Parameter | Exceedance frequency, % |
|---|---|
| pH, – | 55.6 |
| EC, µS/cm | 13.9 |
| TDS, mg/L | 25.0 |
| Mn, mg/L | 47.2 |
| Fe, mg/L | 100 |
| Ni, mg/L | 0.0 |
| Cu, mg/L | 0.0 |
| Zn, mg/L | 0.0 |
| As, mg/L | 5.6 |
| Mo, mg/L | 0.0 |
| Cd, mg/L | 0.0 |
| Pb, mg/L | 5.6 |
