Research Article
Domestic Groundwater Quality in the Northern Governorates of the West Bank, Palestine
Table 3
Water quality classification for various ranges of hardness.
| Total hardness (mg/L as CaCO3) | Degree of hardness [21] | Percentage of samples (%) |
| 0–75 | Soft | 0 | 75–150 | Moderately hard | 0 | 150–300 | Hard | 19 | >300 | Very hard | 81 |
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