[For Landowners] Management of Potential Soil Contamination Risks | Designated Investigation Agency

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Soil contamination survey

last updated：Sep 07, 2026

ジオテック

The designated investigation agency visualizes the potential contamination risks of the land to protect asset value.

For landowners, the sound maintenance of assets and their future utilization are important concerns. Particularly when considering the sale or development of land, potential issues with the ground can pose risks of unexpected costs and delays in planning. If unforeseen soil contamination is discovered, it could impact land use plans and potentially lead to a decrease in asset value. This service is a self-investigation solution designed to identify such risks in advance, supporting smooth project progression while protecting land value. Utilizing our expertise as a designated investigation agency, we conduct voluntary historical investigations to assess the past history of the land, as well as precise sampling analyses tailored to future plans. By visualizing the safety of the ground in advance as evidence, we enable proper evaluation of the land and optimization of future development plans, preventing unforeseen troubles and impacts on asset value. 【Usage Scenarios】 - Before selling or purchasing land - When considering effective use or development of land - Asset evaluation during inheritance 【Benefits of Implementation】 - Preservation of land asset value - Smooth progression of sales and development plans - Reduction of unexpected additional costs - Expansion of future land use possibilities

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basic information

【Features】 - Self-investigation specifications that meet the standards of designated investigation agencies - Comprehensive historical investigation that meticulously examines registration certificates, old maps, etc. - Precise sampling analysis according to future planning depths - Precision analysis data compliant with the Ministry of the Environment's official methods - Issuance of voluntary soil contamination investigation reports in a short timeframe 【Our Strengths】 Geotech provides a one-stop service for all matters related to "ground," including ground investigations and reinforcement design/construction for new buildings (from general construction to single-family homes), settlement correction work for existing buildings, and soil contamination investigations, under the concept of "total ground service." With extensive experience and reliable technology, we create the future of cities from the ground up.

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It is utilized for pre-risk management of large-scale civil engineering projects that require private-sector-led development activities, rebuilding of buildings and factories, or notifications for changes in land characteristics. Before the start of construction or during the excavation design phase, it is used for operators to voluntarily confirm underground safety and to prevent secondary damage from the spread of contaminated soil and delays in the disposal of surplus soil. By securing objective voluntary historical investigation reports and depth-specific sampling analysis results in advance, it functions as an essential practical tool for improving the accuracy of construction estimates, appropriate risk disclosure to general contractors, explaining environmental measures to surrounding residents, and smoothly managing the overall project budget.