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To Land Owners

If you have a history of dealing with specific hazardous substances on your land, you may need to conduct soil surveys. Here, information on soil contamination for landowners is posted.

Last Updated October 2, 2024

What is a specific hazardous substance?

Refers to the 26 types of substances specified by the Soil Contamination Countermeasures Act. Specific names of substances are posted on this page.
For example, there are the following options.

Examples of substances that may contain specific hazardous substances

Gasoline, paints, dry-cleaning solvents, plating solutions, photo development, solder, pesticides, etc.

When soil surveys based on laws and regulations are required

In the following cases, the land owner must conduct a soil survey based on laws and regulations. Please be careful when renting land.
①When a specific facility or business office dealing with specific hazardous substances is abolished
②When The Mayor of Yokohama determines that a soil survey is necessary after receiving a notification of a change in land characteristics.
　Changes in traits on the premises of business sites that handle specified hazardous substances
③In addition, if The Mayor of Yokohama recognizes that soil contamination may cause health damage.

FAQs

What should I do when conducting soil surveys based on laws and regulations?

If a soil survey based on laws and regulations is required, ask a designated survey organization (outside site). The designated research organization first judges the risk of contamination by investigating the history of the land, and if necessary, conducts soil gas surveys and soil collection surveys. After that, land owners should submit a soil contamination status survey result report to Yokohama City.

If the lessee is conducting a business dealing with specific hazardous substances on the land rented, the landowner needs to conduct a soil survey at the time of abolition or change of traits, but what should I do with the cost?

The soil contamination status survey result report must be submitted in the name of the landowner, but the cost burden is not stipulated by law, so it can be freely decided with the lessee.

As a result of a soil survey, soil contamination was confirmed, but can land be bought and sold?

If soil contamination is confirmed as a result of a survey based on laws and regulations, it will be designated as an area, but there is no restriction on the sale of land.

Reference Materials

Please confirm whether notification of soil contamination is necessary before buying or selling land or lease contract (PDF: 299KB)

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Inquiries to this page

Water and Soil Environment Division, Environmental Conservation Department, Yokohama City Green Environment Bureau

Telephone: 045-671-2494

Fax: 045-671-2809

Email address: mk-dojo@city.yokohama.lg.jp

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