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Business Description

Investigations and Countermeasures for Soil and Groundwater Contamination

In the early 1980s, we began incorporating advanced European and American methods through technical cooperation with the American environmental consulting company that was one of our parent companies when we were founded. We apply them consistently throughout the processes of Phase I Investigation, Phase II Investigation, and Remediation.
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Markets and Trends

Revisions to the Soil Contamination Countermeasures Act and prefectural ordinances have expanded the applicable scope of soil contamination remediation and toughened regulations, particularly in manufacturing.
In addition, because the particulars of negotiations for M&As (corporate takeovers, etc.) differ depending on whether or not soil or groundwater contamination is present, the number of soil and groundwater investigations conducted in recent years has been rising as more and more M&As are made.

SERVICE

01Phase I Investigation (initial study that includes document reviews, interviews, and site reconnaissance)02Phase II Investigation (soil/groundwater investigation)03Remediation
01
Phase I Investigation (initial study that includes document reviews, interviews, and site reconnaissance)
The purpose of a Phase I Investigation is to obtain information needed to plan the Phase II Investigation. It is conducted in accordance with the Soil Contamination Countermeasures Act, the Phase I Environmental Site Assessment Process (E1527-13) standard of ASTM International, and other authoritative references.
During a Phase I Investigation, we assess the presence of (or possible presence of) soil/groundwater contamination by conducting an on-site investigation and identifying the circumstances of use, storage, or disposal of used chemical substances (particularly, Designated Hazardous Substances stipulated in the Soil Contamination Countermeasures Act), oils, and the like.
Service Examples
Phase I Investigation at the overseas business sites of a Japanese precision instruments manufacturer (nine countries, including the United States, Brazil, and Malaysia)
Soil contamination investigation at a Japanese pharmaceuticals company
Phase I Investigation at a domestic waste treatment site
02
Phase II Investigation (soil/groundwater investigation)
There are several types of Phase II Investigation: soil gas surveys, surface soil investigations, boring investigations, and groundwater investigations. Based on their results, it is necessary to go beyond a planar assessment of soil and groundwater contamination to make a three-dimensional study of the contamination’s dispersal.
This kind of three-dimensional view of contamination spread is referred to as a “conceptual site model” (CSM). It is a method commonly used in Europe and the United States.
Service Examples
Phase II Investigation at a gas station in Japan
Soil contamination investigation at a Japanese pharmaceuticals company
Phase II Investigation at the overseas business sites of a Japanese medical devices manufacturer (China, South Korea, Thailand, Malaysia, and Indonesia)
Soil and Groundwater Investigation
This is an investigation conducted to determine the presence of soil or groundwater contamination and its circumstances. There are two main ways of conducting a soil and groundwater investigation. The first is stipulated in the Soil Contamination Countermeasures Act. It involves conducting a surface layer investigation (soil gas survey and surface soil investigation) and then a boring investigation in the direction of depth in steps.
The second is often used when conducting a voluntary investigation for an M&A or other purpose. It involves conducting a surface layer investigation and investigation in the direction of depth at the same time.
Both have their advantages and disadvantages, which makes it necessary to use one or the other depending on the situation.
03
Studies for the sale or purchase of power plants
Various remediation methods can be considered depending on the combination of locational conditions, soil quality, contaminating substance, concentration, and other factors. Because of this, it is not realistically possible for a single specialist company to handle all of the studies.
We propose the optimal solutions to customers by working with those companies that have the best technologies among the many specialist companies available.
Service Examples
Remediation of heavy metal/agrochemical contamination at a chemical plant in Japan (excavation and removal/off-site disposal)
Groundwater remediation at a Japanese automobile parts manufacturer (bio-remediation)
Groundwater remediation at a Japanese semiconductor manufacturer (installation of an impermeable wall (Soil Mixing Wall: SMW) and groundwater pumping)
See related Service Examples
OTHER CONTENTS
Support for Renewable Energy Introduction
Resource Recycling
Investigations and Countermeasures for Soil and Groundwater Contamination

 

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+81 (0)3 6328 0080Inquiries are accepted between 10:00 am and 5:30 pm, Monday to Friday
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