Abstract
The sustainable protocol to remediate contaminated soil, followed by the external cost analysis, is proposed to simplify the steps for sustainable remediation or sustainable green remediation. This paper provides a site case study, which is widely contaminated by trichloroethylene and cis-1, 2-dichloroethene in Japan. Authors selected the relevant parameters from sustainable categories and parameters, and integrated those parameters by external cost unit, which are applicable for Japan. Onsite soil heating had the lowest total cost of the three soil remediation techniques in this study. The approach for sustainable remediation can be modified to suit the conditions in individual site conditions, therefore the simple and perspicuous way proposed in this work would be widely acceptable as an entrance to sustainable remediation in Japan.