| Judgment index | Time to repair | Repairing method |
No repairing |
|
| No repairing |
Plan-1 | Concentration | Point of time when the concentration at the sea area is more than it for the closure and abandonment of coastal landfill sites (C = 0.1) | Repairing the steel-made side impervious walls on sea-side only |
Plan-2 | Repairing the steel-made side impervious walls on the both sides (sea side and landfill site side) | ||
Plan-3 | Total flux | Point of time when the total flux is more than it for the closure and abandonment of coastal landfill sites | Repairing the steel-made side impervious walls on sea-side only |
Plan-4 | Repairing the steel-made side impervious walls on the both sides (sea side and landfill site side) | ||
Plan-5 | Hydraulic conductivity | Point of time when the hydraulic conductivity is more than it for the technical guidelines of impervious walls (1.0 × 10−6 cm/sec) | Repairing the steel-made side impervious walls on sea-side only |
Plan-6 | Repairing the steel-made side impervious walls on the both sides (sea side and landfill site side) |