Latest Soil Acceptance Standards to Avoid Legal Risks and Investigation Methods | Geotech

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Soil survey

last updated：Sep 07, 2026

ジオテック

Latest standards for accepting residual soil to avoid legal risks and investigation methods.

In the disposal of excavation soil resulting from construction work, preventing environmental pollution and avoiding work stoppages are the top priorities. To prevent legal penalties and sanctions due to improper handling, we provide a pre-compliance analysis that fully adheres to the unique regulations and strict additional regulations of each municipality. This enables the selection of the optimal disposal site according to the geographical environment of the region and the receiving location (landfill or marine landfill), ensuring compliance with strict volume-based standards (e.g., 5000m3 for Chiba Prefecture, 2500m3 for Tokyo Port). Through advanced screening technology and optimal sampling processes, we optimize investigation costs while demonstrating safety. We promise smooth progress for the project.

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In addition to the national soil environmental standard items, we accommodate analysis of more than 45 items including dioxins, oil content, and fluorine. Sampling is conducted using a combination of double shovels, heavy machinery excavation, and self-propelled boring. We design and implement strict survey specifications that fully comply with the regulations of each municipality, such as the mixed method at five locations in Chiba Prefecture and the prohibition of mixing and specific pinpoint sampling at the Tokyo Port terminal.

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Preliminary ordinance investigations of excavated soil in construction and civil engineering works centered around the metropolitan area, data acquisition for acceptance applications to disposal sites, and risk management aimed at preventing penalties for improper disposal. It is widely utilized for rapid soil screening and suitability assessment under special site conditions such as operating factory premises, narrow sites, and underground pits.