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Provision of pipeline information

Last Updated September 20, 2024

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Response to invoices in pipeline information browsing system

Since the fee for drawings obtained from the pipeline information browsing system falls under the special vending machine for invoices, we do not issue qualified invoices (receipts).
Please refer to the link below for details.
(About City of Yokohama, Water Works Bureau's invoice response)

From Monday, October 3, 2022, the provision of pipeline information provided at each water supply office has been consolidated into the water supply construction reception center.

Please confirm the following link about the details of water supply construction reception center.
(Information on the establishment of a water supply construction reception center)

Type of pipeline information

Depending on the type of pipeline information, City of Yokohama, Water Works Bureau provides the service through contact or system support.

Provision by browsing (water supply construction reception center)

Type of pipeline information, recipients and fees
Type of pipeline information to be provided Eligible recipients Fees Reception hours

・Branch ledger
・Public pipe ledger
・Private pipe register
・Floor plan of water pipes

・Owners, etc. (Note 1)
・A person entrusted by the owner, etc.
・The water supply business manager provides pipeline information
 Those who deem it necessary

Free of charge

Excludes closed days
From 8:45 to 17:00


Comment 1: Owners refer to those who own or use water supply equipment.

Provision by delivery of copies (water supply construction reception center)

If you would like to receive a copy of the drawing, please submit the "Drawing Grant Invoice" (PDF: 275KB).

Type of pipeline information, recipients and fees
Type of pipeline information to be provided Eligible recipients Fees Reception hours

・Notification of completion of water supply equipment construction
・Water supply equipment construction completed drawing

・Owners, etc. (Note 2)
・A person entrusted by the owner, etc.

300 yen per case

Excludes closed days
From 8:45 to 17:00

・Completed construction of Water Works Bureau

・Owners, etc. (Note 2)
・A person entrusted by the owner, etc.
・The water supply business manager provides pipeline information
 Those who deem it necessary

300 yen per case

Excludes closed days
From 8:45 to 17:00


Comment 2: Owners refer to those who own or use water supply equipment.

Provision by pipeline information browsing system (web use service)

If you are using the web service of the pipeline information browsing system for the first time, you need to apply in advance.
Please refer to the link below for details on how to apply.
(Link to how to apply for Web use of the pipeline information browsing system)

If you have already registered for the Web service of the pipeline information browsing system, please log in from the link below.
(Link to the login screen of the pipeline information browsing system) (external site)

Type of pipeline information, recipients and fees
Type of pipeline information to be provided Eligible recipients Fees Reception hours

Personal information and pipeline information
Information excluding residential areas of water supply equipment

The water supply business manager provides pipeline information
Those who deem it necessary

Free of charge

24 hours

(Note 3)

Note 3: It may not be available during maintenance.

Provision by pipeline information browsing system (water supply construction reception center and city hall the second floor "Yokohama Building Information Center")

Type of pipeline information, recipients and fees
Type of pipeline information to be provided Eligible recipients Fees Reception hours

Personal information and pipeline information
Information excluding residential areas of water supply equipment

The water supply business manager provides pipeline information
Those who deem it necessary

・When planning a diagram
 100 yen per sheet
・When browsing
 Free of charge

Excludes closed days
From 8:45 to 17:00
(Note 4)


Note 4: It may not be available during maintenance.

Description of important matters in using the pipeline information browsing system

  1. Please note that the pipeline information browsing system takes time from completion of construction to data creation and system input, so the latest construction data may not be reflected.
  2. In order to ensure the accuracy of the provided information, verify the identity, and provide information by collecting fees, we do not respond to questions regarding pipeline information data other than the counter, such as telephone, fax, e-mail, etc.
  3. City of Yokohama, Water Works Bureau is not responsible for any direct or indirect damages or disadvantages arising from the information provided by the System.
  4. City of Yokohama, Water Works Bureau assumes no responsibility for any trouble that may arise with third parties due to the use of various information provided by the system.
  5. Photographing of display screens using mobile phones, smartphones, digital cameras, etc. is prohibited.

Implementation of identity verification at the counter

Regarding the provision of pipeline information, we comply with the ordinance on disclosure of information held by Yokohama City (Yokohama City Ordinance No. 1 in February 2000) and the ordinance on protection of Yokohama City Personal Information (Yokohama City Ordinance No. 6 in February 2005).
Therefore, when providing personal information, we confirm the claimant who applies at the counter that he / she is the claimant.
If you are requesting the provision of pipeline information that contains personal information, please present a document that can identify you at the counter.
If a request is made by proxy/agent, etc. on behalf of the owner, etc., please submit a power of attorney (word: 12KB) along with the above identification.

Documents that can identify you
In the case of an individual
  • Driver's license
  • Passport (passport)
  • Basic Resident Register card with photo
  • employee health insurance's insured card
  • Documents issued by public institutions such as the pension Notebook
In the case of a corporation
  • Those who can confirm that they are employees of the corporation, such as employees.

Drawings provided by the pipeline information browsing system

  • Provided drawing when there is no water pipe information on the road (out figure: 100 yen / sheet, browsing: free)

Drawing provided when there is no water pipe information on the road

  • Provided drawing when there is water pipe information on the road (out figure: 100 yen / sheet, browsing: free)
    Displays water pipe information in the road (caliber, pipe type, laying year).

Drawing provided when there is water pipe information on the road

Pipeline information provision location (* Please note that the information provided varies depending on the location)

Location of the Offering Location
Offering location Location: Phone number/fax

Water supply construction reception center

5-1, Kawabecho, Hodogaya-ku
(Link to the guide map)

Telephone: 045-489-3085
Fax: 045-848-4281

In the Yokohama Building Information Center
Pipeline Information Viewing Corner

6-50-10, Honcho, Naka-ku
2nd floor of City Hall
(Link to the guide map)

None

Remarks 1: Since the Yokohama Building Information Center is not a construction and construction department, it does not have the latest pipeline information or construction completed books. If you need this information, please come to the window of the water supply construction reception center.

For inquiries regarding water supply, please contact the Water Works Bureau Customer Service Center.

Water Works Bureau Customer Service Center

Telephone: 045-847-6262 Fax: 045-848-4281
※Please be careful not to make a mistake.

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Inquiries to this page

Pipeline Information Section, Distribution Division, Water Works Bureau Distribution Department

Telephone: 045-331-6520 (business hours: Monday to Friday (excluding holidays) 8:30 to 12:00, 13:00 to 17:15)

Telephone: 045-331-6520 (business hours: Monday to Friday (excluding holidays) 8:30 to 12:00, 13:00 to 17:15)

Fax: 045-332-1442

Email address: su-haisui@city.yokohama.jp

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Page ID: 735-346-000

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