| Settings | Standards | Ahomey | Yobohoué | Tétéhoué | SONEB |
| Temperature | ~25˚C | 30.2 | 30.1 | 30.1 | 30.2 |
| Hydrogen potential | 6.5 - 8.5 pH | 5.1 | 5.2 | 5.6 | 5.1 |
| Electrical conductivity | 2000 CE | 65 | 54 | 60 | 76 |
| Total dissolved solids | - | 32 | 27 | 30 | 38 |
| Salinity | - | 0.01 | 0.01 | 0.016 | 0.01 |
| Turbidity | - | 0.65 | 0.25 | 0.19 | 0.2 |
| Color | 15 | <0.01 | <0.01 | <0.01 | <0.01 |
| Sulphates | 400 | 0.1 | 1.4 | 0.5 | 0.3 |
| Ortho-phosphates | 5 | 0.2 | 0.14 | 0.23 | 0.2 |
| Nitrites | 0.1 | 0.009 | 0.009 | 0.008 | 0.007 |
| Nitrates | 45 | 15.5 | 10.6 | 11.7 | 15.3 |
| Ammonium | 0.5 | 0.15 | 0.04 | 0.52 | 0.05 |
| Chlorides | 250 | 7 | 7 | 9 | 7 |
| Fluorides | 1.5 | <0.01 | <0.01 | 0.03 | <0.01 |
| Manganese | 0.05 | 0.004 | <0.001 | 0.002 | 0.005 |
| Calcium | 100 | 3.2 | 3.2 | 3.2 | 7.6 |
| Magnesium | 50 | 1.69 | 1.45 | 1.45 | 1.45 |
| Total hardness | 400 | 15 | 14 | 14 | 25 |
| Bicarbonates | - | 8.54 | 8.54 | 8.54 | 8.54 |
| Iron | 0.3 | 0.13 | 0.12 | 0.15 | 0.13 |