| Statistic | Total Sprouts/1 mL | Thermotolerant coliforms/100 mL | Escherichia coli/100 mL | Faecal enterococci/ 100 mL | |
| Rainy season | Minimum | 00 | 00 | 00 | 00 |
| Maximum | 2.56∙108 | 8.42∙103 | 1.22∙103 | 3.50∙103 | |
| Mean | 8.80∙106 | 1.55∙103 | 1.38∙102 | 3.46∙102 | |
| Standard deviation (n − 1) | 4.51∙107 | 2.30∙103 | 2.69∙102 | 7.15∙102 | |
| Dry Season | Minimum | 00 | 00 | 00 | 00 |
| Maximum | 9∙106 | 6.8∙104 | 8∙103 | 3.3∙104 | |
| Moyenne | 1.82∙106 | 1.12∙104 | 3.79∙102 | 2.31∙103 | |
| Standard deviation (n − 1) | 2.70∙106 | 1.99∙104 | 1.42∙103 | 6.83∙103 |