| Countermeasures in principle | Other countermeasures |
Exceeds the environmental quality standards for the content in soil (Prevent direct intake) | Embankments | Pavement No trespassing Soil replacement |
Exceeds the environmental quality standards for the amount leached in soil (prevent intake via underground water) | In-situ containment | In-situ insolubilization Backfill insolubilized soil Water shield containment |