Remediation of illegal dump site in Jepun

It is not exactly meant "illegal" dumpsite. The landfill was indeed legal but illegal due to the received amount of waste that exceeded the permitted value allowed by the authority. That was why the word "illegal" was used. The landfill is now covered with geomembrane to prevent contact of the rubbish with rain water.

The landfill is also equipped with groundwater diversion tunnel, to divert the groundwater flow from flowing trough the contaminated landfill.

TBM machine was used to make the tunnel. Geology consists of shale and chert (sedimentary rock)

The cost for remediation is USD100 million !!.