Designated Investigation Agency | Historical research to prevent the cancellation of land transactions and facilitate sales negotiations.

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Geographical and historical investigation

last updated：Sep 07, 2026

ジオテック

Elimination of the risk of contract cancellation due to contamination discovered just before delivery! An investigation that proves safety based on reliable data and accelerates land sale negotiations.

This is a land environmental survey solution designed to preemptively avoid the worst-case scenario where soil contamination is discovered just before a land transaction, causing negotiations to come to a complete halt or fall through. Utilizing our extensive know-how as a designated survey organization, we visualize potential risks stemming from the land's past usage history at an early stage. By preparing solid evidence from the initial stages of the sales contract negotiations, we dramatically reduce the buyer's anxieties and psychological barriers, strongly supporting a smooth transaction completion on schedule. This is an essential practical measure to prevent unnecessary time loss and unexpected costs, establishing a safe and reliable real estate transfer process. It is also highly effective during factory rebuilds or asset reorganizations. This plan serves as an environmental measure solution that reliably demonstrates the safety of the underground during real estate sales, sincerely protecting the company's social credibility and the valuable asset value of the land. Please feel free to entrust us with your needs.

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basic information

This is the basic specification for soil environment measurement conducted by designated investigation agencies that meet the strict standards of the Ministry of the Environment. It fully covers the standard process based on the Soil Contamination Countermeasures Act, from Phase 1's document investigation and hearings to Phase 2's on-site sample collection. It addresses all items of specified harmful substances of Type 1, Type 2, and Type 3, and conducts sampling and measurement in accordance with official methods. Using high-precision analytical equipment registered as a measurement certification business, accurate values are calculated, and detailed investigation reports with legal evidential capacity are prepared. We are equipped with specialized equipment that adapts to various field environments, including simple mechanical boring technology (SCSC) that allows for rapid continuous soil sample collection even in indoor, sloped, or confined workspaces.

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Applications/Examples of results

It is used for legal obligation investigations based on Article 3 of the Soil Contamination Countermeasures Act during the closure or demolition of facilities that use specific harmful substances, such as factories, gas stations, printing companies, and dry cleaners, as well as for voluntary environmental risk management associated with partial land sales or development activities. It is optimal for the seller in real estate transactions to demonstrate the safety of the underground in advance as a risk hedge for warranty liability, or for the buyer to conduct due diligence when objectively evaluating potential purchase sites. Furthermore, it is frequently used as a preliminary analysis to fully meet the acceptance standards of construction-generated soil (excavated soil) regulations established by various municipalities, including the metropolitan area (such as mixed sampling from five locations or pinpoint sampling).