| WSP | Pond | Surface area (m2) | Hydraulic retention time (days) | Effluent BOD (mg/l) | Effluent faecal coliforms (FC per 100 ml) |
| Anaerobic | A | 935 | 1.3 | 314 | 11,415,525 |
| Facultative | F | 21757 | 20 | 45 | 215,387 |
| Maturation | M1 | 4397 | 3 | 23.7 | 24,476 |
| M2 | 4397 | 3 | 12.5 | 1,000 | |
| TOTAL | 31,486 | 27.3 |
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