| Sample size | % of water out of pH scale | % of water out of turbidity scale | % of bacteria contaminated waters |
Guibaré | 111 | 4.5% | 7.2% | 10.8% |
Sabcé | 89 | 5.6% | 8.9% | 5.6% |
Guibaré and Sabcé | 200 | 5.0% | 8.0% | 8.5% |