Construction Soil Acceptance Standards Compliance Law for Addressing Strict Additional Regulations in the Metropolitan Area

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Soil survey

last updated：Sep 07, 2026

ジオテック

Law for Clearing Construction Soil Acceptance Standards in Response to Strict Additional Regulations in the Metropolitan Area

The disposal of construction soil in the metropolitan area (Tokyo, Chiba, Saitama, etc.) is subject to very strict local ordinances and additional regulations due to concerns about inflow from other prefectures and inadequate soil filling measures. This service provides a comprehensive pre-compliance analysis that fully covers the significantly different acceptance standards and sampling specifications for each region. For example, it selects the most suitable acceptance sites for each location, such as the "5-point mixing method" for every 5000m3 in Chiba Prefecture, and the "mixing prohibition and sea reclamation standards" for every 2500m3 at Tokyo Port. Based on Geotech's expertise, it accurately screens the analysis items specified by the ordinances (including more than 45 items such as dioxins, oil content, and fluorine), thereby reducing excessive investigation costs while fully complying with regulations.

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basic information

Soil environmental standards (approximately 29 items) base + additional items specific to each municipality and disposal site (dioxins, oil content, fluoride, etc.) compliance. Lot-specific sampling design fully compliant with Chiba Prefecture standards (uniform mixing of all layers of soil) and Tokyo Port terminal standards (calculated based on the larger of every 2500m3 or every 50m square, mixing prohibited).

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Preliminary investigation of generated soil in construction and civil engineering works throughout the Tokyo metropolitan area, subject to the Tokyo Metropolitan Environmental Protection Ordinance and the soil disposal ordinances of Chiba and Saitama Prefectures. Support for meeting transportation conditions to disposal sites, suitability assessments for marine and land reclamation, and assistance in preparing administrative notification documents (such as investigation reports) during site alterations.