| Zones | Area (m2) | Sampling points | Depth of contamination (m) | Depth of sludge (m) | Estimated Volumes of contamination (m3) |
| Zone 12 | 557617.1 | DOL (1 - 30 ) | 0.40 to 0.60 | NA | 168776.55 |
| Zone 13 | 145285.4 | WOL (1 - 30 ) | 0.08 to 1.8 | 0.08 to 0.90 | 128947 |
| Total | 702902.6 | 297723.6 |