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Classifications of water quality for various ranges of EC in μS/cm at 25°C.
| Range of EC (μS/cm) | Water quality classification [64] | Percentage of samples (%) |
|---|---|---|
| <250 | Excellent | 3.8 |
| 250–750 | Good | 19.2 |
| 750–2,000 | Permissible | 77 |
| 2,000–3,000 | Doubtful | 0 |
| >3,000 | Unsuitable | 0 |
