|
| CRITERION | CLASSE | WEIGHT |
| G | Type of aquifer depending on its degree of containment Ca, | Free wthout cover | 1.0 |
| O | The lithology of the aquifer Cl | Gravel, chalky limestones | 0.8 |
| Sand and gravel, sandstone, tuffs | 0.7 | ||
| Clay | 0.6 | ||
| Alluvial silts | 0.5 | ||
| Residual soil | 0.4 | ||
| D | The depth of the water table Cd | <2 | 1 |
| 2 - 5 | 0.9 | ||
| 5 -10 | 0.8 | ||
| 10 - 20 | 0.7 | ||
| 20 - 50 | 0.6 | ||
| 5 - 100 | 0.5 | ||
| >100 | 0.4 |