Specialized service field for investigating and analyzing soil contamination presence in manufacturing plants and industrial facilities. Supports compliance with legal obligations related to manufacturing land use, including pre-construction site history surveys, regular operational monitoring, and contamination assessment at facility closure. Services include detection and analysis of industrial contaminants such as heavy metals, organic solvents, and oil components, along with boring surveys, groundwater investigations, and risk assessment report preparation. Provides specialized investigation and analysis services for manufacturing land management risks, from designated investigation agency surveys under the Soil Contamination Countermeasures Act to voluntary environmental due diligence.