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Outline of published information on soil contamination

Last Updated October 2, 2024

Information provided by this section

  • Information provided by this section (Water and Soil Environment Division) is based on "registration form" submitted by each business operator in accordance with laws and regulations. The contents are as of the time of notification. The posted information does not guarantee the content of the information by Yokohama City.
  • If you have any questions about the individual contents, we will not be able to answer them by telephone, etc., so please come directly to the counter. Please be sure to check the details at the counter.
  • Yokohama City is not responsible for any direct or indirect loss or damage caused by the use of this ledger.
Information provided by this section
Information NameOverviewLocation of Information Disclosure

Ledger of land designated as a contaminated area

As a result of a survey based on the Soil Contamination Countermeasures Act (hereinafter referred to as the "Law") or the ordinance on the conservation, etc. of the living environment of Yokohama City after the revision in 2012 (hereinafter referred to as the "Ordinance"), specified hazardous substances conform to the designated standards. This is a land register designated as a contaminated land.
It is designated as an area when announced in the Yokohama City Newsletter (issued on the 5th, 15th, and 25th of every month).

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Land to be designated as a contaminated areaThis is a list of land that will be designated as an area as contaminated land based on laws or regulations. In the future, it will be designated as an area with the announcement in the Yokohama City Newsletter.
Ledger of land whose designation of area has been canceledAfter being designated as an area based on the law or ordinance, it is recognized that the grounds for the designation of the area have disappeared as a result of measures such as removal of pollution, and it is a ledger of land where all or part of the designation of the area has been canceled.
Land that has been deferred for soil surveysWith the abolition of specific facilities that use harmful substances, the abolition of use of specific hazardous substances at specific facilities, or the abolition of establishments such as the use of specific hazardous substances, the obligation to conduct soil surveys based on laws or ordinances has arisen. It is a ledger of land that has been deferred for soil surveys for reasons such as being used as a business.

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Ordinance Standards Compliance Land Ledger

In response to the abolition of business establishments such as the use of specified hazardous substances, change of characteristics, or change of characteristics of land with a history of use of specified hazardous substances, land that conformed to the specified standards as a result of the survey It is a ledger.

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Old Ordinance Soil Announcement LedgerPrior to the revision of the ordinance in 2012, this is a land ledger that conducted a soil survey based on the ordinance in response to the abolition of a business that uses soil contamination harmful substances or a change in characteristics.

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Dioxin soil contamination report ledgerWe publish the results of soil surveys related to dioxins at dioxins management sites (lands of establishments that have specific facilities stipulated in the Law Concerning Special Measures against Dioxins).

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List of specified business sites based on the Water Pollution Control Law

This is a list of business establishments that have specific facilities prescribed in the Water Pollution Control Law Enforcement Order Schedule 1 (outside site) are installed, and have been notified based on the Water Pollution Control Law. Please note that even if "Yes" is indicated in the column of "Specific facilities that use harmful substances", specific hazardous substances related to soil contamination are not necessarily used.

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Lists such as specific business establishments based on the Sewerage Law and the Yokohama City Sewerage Ordinance

It is list of establishments reported based on the Sewerage Law and the Yokohama City Sewerage Ordinance. Please note that even if there is a description of "Yes" in the column "Presence or absence of harmful substances", specific hazardous substances related to soil contamination are not necessarily used.

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Contact point of water and soil environment section

Water and Soil Environment Division, Environmental Conservation Department, Yokohama City Green Environment Bureau
Address: 6-50-10 Honcho, Naka-ku, Yokohama (27th floor)
Phone number: 045-671-2494

Examples of information that can be helpful when conducting a land history survey with information held outside of this section

Examples of information that can be helpful when conducting a land history survey with information held outside of this section
Information NameOverviewContact information, etc.
Hearings from land ownersThe information provided by the city hall cannot determine all soil contamination.
It is also necessary to judge the possibility of soil contamination by hearing from land owners how to use the land, history of the use of harmful substances, local conditions, etc.
Land owners, etc.

Designated offices

In the regulations, it is necessary to notify the city about establishments (designated establishments) that perform work that is recognized as having high probability of causing pollution by generating smoke exhaust, dust, odor, drainage, noise or vibration. You.
From this designated establishment, it is not possible to judge the installation status of all factories and the handling status of harmful substances, but it can be used as a reference for the use history of land.
Regardless of whether or not it is this designated establishment, when abolishing factories or establishments that use specific hazardous substances, a soil survey based on the ordinance is required.

Green Environment Bureau Environmental Management Division
List of designated offices
※Until July 31, 2023, we can read at window on the 27th floor of city hall.

Business site information based on the Act on Promotion of Management of Chemical Substance EmissionsThe Ministry of the Environment has published data on individual business sites based on the Chemical Substance Emissions Control Promotion Act (PRTR Act).PRTR Information Plaza (outside site) (Ministry of the Environment)
Waste-related materialsGeneral waste treatment, industrial waste treatment, polychlorinated biphenyl (PCB) waste, waste landfill site, etc.Resources and Waste Recycling Bureau Business Waste Management Section

Ground information
(Bowling materials)

Ground information (boring materials) investigated with public works in the city is released on the Internet.Ground View (outside site) (Yokohama City Institute of Environmental Science)
Large-scale embankment siteStatus of large-scale embankment sites (map, Q & A, etc.)Housing and Architecture Bureau Residential Land Examination Division

Land owners, official maps, etc.

Under the Soil Contamination Countermeasures Act, land owners, etc. are obliged to investigate the status of soil contamination. The real estate rights relationship can be examined by the Legal Affairs Bureau.Yokohama Legal Affaires Bureau (outside site)
Past Housing MapYou can check the history of land use using past housing maps. However, the boundaries of the land and the shape of the building may differ from the actual situation.Yokohama City Library (Housing Map)
Housing and Architecture Bureau City Planning Division (topographic map of early Showa)
Kanagawa Prefecture Earth and Sand OrdinanceBased on the regulations (outside site) about appropriate disposal of Kanagawa earth and sand, procedure may be necessary when we carry out removal of earth and sand, landfill, or deposit of earth and sand on land.Yokohama Kawasaki Flood Control Office, Kanagawa Prefecture (outside site)

Materials related to the disclosure of information

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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

Telephone: 045-671-2494

Fax: 045-671-2809

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

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Page ID: 245-264-650

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