| DRASTIC Parameters | Range | Rating | Weight | Total weight (rating × weight) |
| Recharge (mm) | 126.62 to 136.89 | 1 | 4 | 4 |
| 136.89 to 147.49 | 2 | 4 | 8 | |
| 147.49 to 165.23 | 3 | 4 | 12 | |
| 165.23 to 178.91 | 4 | 4 | 16 | |
| 178.91 to 195.36 | 5 | 4 | 20 | |
| 198.35 to 207.73 | 6 | 4 | 24 | |
| 207.73 to 225.38 | 7 | 4 | 28 | |
| Aquifer Media | Conglomerate | 8 | 3 | 24 |
| Fractured Shale | 7 | 3 | 21 | |
| Soil Media | Litosols | 10 | 2 | 20 |
| Regosols | 9 | 2 | 18 | |
| Vertisols | 2 | 2 | 4 | |
| Slope % | 0 to 2 | 10 | 1 | 10 |
| 2 to 4 | 9 | 1 | 9 | |
| 4 to 6 | 8 | 1 | 8 | |
| 6 to 8 | 7 | 1 | 7 | |
| 8 to 10 | 6 | 1 | 6 | |
| 10 to 12 | 5 | 1 | 5 | |
| 12 to 14 | 4 | 1 | 4 | |
| 14 to 16 | 3 | 1 | 3 | |
| 16 to 18 | 2 | 1 | 2 | |
| >18 | 1 | 1 | 1 | |
| Impact of the vadose zone | Fractured Shale | 6 | 5 | 30 |
| Uniform graves | 8 | 5 | 40 | |
| Alluvium | 9 | 5 | 45 | |
| Conductivity (m/s) | 10−1 to 10−3 | 10 | 3 | 30 |
| 10−3 to 10−5 | 8 | 3 | 24 | |
| 10−6 to 10−8 | 4 | 3 | 12 |