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  6. Designated investigation agency | Early assessment of soil contamination through voluntary surveys to accelerate real estate transactions.

Designated investigation agency | Early assessment of soil contamination through voluntary surveys to accelerate real estate transactions.

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Soil contamination survey

last updated:Jun 28, 2026

ジオテック
ジオテック
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Independent investigation to prevent stagnation in real estate transactions. Rapid soil contamination sampling facilitates pre-sale contract investigations and enables early determination.

In the field of real estate transactions, the existence of soil contamination risks is a significant factor that can lead to prolonged negotiations or contract cancellations. This service is a specialized solution that allows for early determination of the presence of specific harmful substances underground through voluntary surveys conducted at any time before the land sale contract. Based on our extensive track record as a designated investigation agency, we provide a one-stop, rapid service that includes historical research of the site, accurate soil contamination sampling on-site, and high-precision official analysis. This helps completely prevent hidden defect issues after handover and accelerates the transaction speed. By visualizing potential risks at a stage that does not involve reporting obligations to authorities, we facilitate smooth pre-calculation of countermeasure costs and the incorporation of special clauses into contracts, thereby easing the consensus-building process for both sellers and buyers. This can be utilized as optimal risk management to prevent the erosion of real estate value and to ensure that corporate asset liquidity and development projects proceed as planned.

    Site and ground investigationGeological SurveyEnvironmental Survey
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Designated investigation agency | Early assessment of soil contamination through voluntary surveys to accelerate real estate transactions.

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  • Related Link - https://www.jiban.co.jp/service/env/index.htm
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basic information

This self-investigation service is conducted in accordance with the Soil Contamination Countermeasures Act and the guidelines of the Ministry of the Environment. The historical investigation comprehensively analyzes the history of hazardous substance usage from old maps and administrative documents. The field investigation involves soil gas surveys and surface soil sampling based on a standard 10-meter grid layout, measuring specific hazardous substances from categories one to three at a registered public analysis institution under Article 107 of the Measurement Law. The investigation results can be delivered as a contamination distribution map and evaluation report in as little as two weeks.

Price information

 

Price range

P3

Delivery Time

P4

Applications/Examples of results

It is mainly used for risk assessment prior to the conclusion of sales contracts in land transactions involving former factory sites, gas stations, and automobile maintenance shops. It is ideal for due diligence when real estate developers acquire development land, for pre-verification of asset value during the sale of surplus assets by companies, and for soil risk assessment associated with M&A activities. Additionally, it is implemented to confirm compliance with standards for the removal of construction-generated soil during the rebuilding of office buildings and commercial facilities, as well as part of voluntary environmental management within operating factory sites.

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Thorough independent investigation before the purchase agreement to early determine soil contamination and reliably accelerate real estate transactions | Designated Investigation Agency | Geotech

Thorough independent investigation before the purchase agreement to early determine soil contamination and reliably accelerate real estate transactions | Designated Investigation Agency | Geotech

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Soil Contamination Survey and Historical Investigation Brochure for Real Estate Companies

Soil Contamination Survey and Historical Investigation Brochure for Real Estate Companies

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