Research Article
Domestic Groundwater Quality in the Northern Governorates of the West Bank, Palestine
Table 4
Distribution of the tested groundwater samples for total Coliforms according to their level of contamination and recommended treatment procedure.
| | Recommended treatment procedure [20] | Range of total Coliforms (CFU/100 mL) | Degree of contamination | Percentage of samples (%) |
| | No treatment required | 0–3 | 0 | 98.7 | | Chlorination only | 4–50 | 1 | 1.3 | | Flocculation, sedimentation, and then chlorination | 51–50,000 | 2 | 0 | | Very high contamination, need special treatment | >50,000 | 3 | 0 |
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CFU: colony forming unit.
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