Designated Investigation Agency | Voluntary Soil Contamination Survey by Official Analysis | Geotech

We thoroughly track the history of past hazardous substance usage and identify underground contamination risks through strict sampling by the buyer and high-precision official analysis.

This is a technology-oriented buyer-side self-investigation solution that thoroughly identifies the residual risks of various specific hazardous substances that were used in the past at sites such as chemical plants and metal processing facilities, and completely clarifies the reality of underground contamination through the highest precision official analysis. Since soil contamination cannot be confirmed visually, the success or failure depends on how deeply the past operational realities can be traced. In this service, the "buyer-side historical investigation" meticulously analyzes the history of raw material usage, manufacturing processes, drainage system diagrams, and Safety Data Sheets (SDS) from the Showa era with professional scrutiny, listing all substances that pose risks without omission. The subsequent field investigation conducts a "voluntary Phase 2 sampling survey" using the most suitable construction method for the target substances, and precise analysis in milligram and microgram units is performed in the lab according to the official methods designated by the Ministry of the Environment. This approach minimizes the development risks of incurring enormous purification costs or project setbacks due to overlooked contamination after purchase, ensuring reliable safety.

Site and ground investigationDismantling and movingOther civil engineering services