| Municipality | Average amount of wastewater produced/person (Liter) | SD | Total quantity produced per day (Liter) |
| 1 | 34.40 | ±1.20 | 32232.8 |
| 2 | 30 | ±1.31 | 18870 |
| 3 | 31.17 | ±1.08 | 35658.48 |
| Average | 31.85 | ±1.19 | 28920.42 |