Despite of the MIP survey, groundwater investigation of temporary wells, groundwater investigation of monitoring wells, soil investigation and compound specific isotope analysis (CSIA) were also applied in this project. The results from the five (5) investigation techniques showed the highest concentration of pollutants or pollution source trend to be originated from land number 2087 of the site, and Trichloroethene and 1,2-Dichloroethane were detected in many soil samples within three (3) meters of depth bgs in the unsaturated zone of the site. Based on the above results, Trichloroethene was assessed to be used in site, there was a leakage and caused contamination.

MIP survey, Trichloroethene