Designated Investigation Agency | Reliable Soil Investigation and Acceptance Criteria Measures Even in Limited Spaces

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Soil survey

last updated：Jun 26, 2026

ジオテック

Reliable soil surveys and acceptance criteria measures even in narrow spaces.

This is a specialized investigation solution tailored for extremely limited spaces where large rotary boring machines and survey vehicles cannot enter, such as densely populated urban areas, commercial districts, and the interiors of operating factories. It ensures reliable soil contamination surveys and measures for the acceptance standards of construction waste. Under the strict quality control of a Ministry of the Environment-designated investigation agency, it combines precise analysis fully compliant with official methods and groundbreaking sampling techniques that do not impact buildings or surrounding businesses, providing official evidence required by authorities and disposal sites swiftly. By identifying risk areas through meticulous historical investigations in advance and conducting pinpoint, reliable depth surveys, it optimizes investigation costs while thoroughly managing soil contamination risks without oversight. This approach eliminates all risks associated with urban sites, such as noise complaints from neighbors, project delays due to contamination discoveries during construction, and unexpected surges in disposal costs, ensuring safe and smooth project progression. This service is the optimal choice for thoroughly reducing your business risks and maximizing cost performance, serving as a solid foundation to guarantee safety in many construction projects.

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basic information

This is a specification for soil sampling surveys that comply with official methods, specifically designed for urban and indoor environments without the need for large heavy machinery. It accommodates tests for the leaching and content of first, second, and third category specific hazardous substances. The equipment used is an electric portable boring machine (SCSC method) that can be operated by hand by workers, minimizing noise. It ensures reliable soil core recovery up to a maximum depth of 5.0 meters in confined spaces (with a working radius of less than 1.0 meter and a ceiling height of less than 2.0 meters) without disturbing the concrete floor, in areas such as indoors, under eaves, underground pits, and sloped land. Throughout all processes, we guarantee reliable evidence without data tampering and swiftly deliver high-quality results to our customers.

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Applications/Examples of results

It is used for excavation residual soil inspections associated with rebuilding at the property boundaries of gas stations, cleaning stores, and printing factories in urban areas, voluntary soil contamination risk assessments inside operating buildings, and pre-development environmental due diligence in densely populated areas adjacent to residential neighborhoods. It is widely adopted in various scenarios for small site residual soil measures, especially in locations where other companies have declined due to difficulties in transporting large equipment, and where there is a desire to minimize impacts on operations and sales as well as neighbor complaints while obtaining reliable legal evidence. This system is essential for eliminating barriers to construction progress in advance and achieving a high level of cost reduction and compliance.