Research Article
Quality of Drinking Water from Springs in Palestine: West Bank as a Case Study
Table 5
Distribution of the tested cistern samples for total coliforms according to their level of contamination and required treatment procedure.
| Recommended treatment procedure [3] | Range of total coliforms (CFU/100 mL) | Degree of contamination | Contaminated samples (%) |
| No treatment required | 0–3 | 0 | 2 | Chlorination only | 4–50 | 1 | 2 | Flocculation, sedimentation, and then chlorination | 51–50,000 | 2 | 0 | Very high contamination, need special treatment | <50,000 | 3 | 0 |
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