Status of Public Sewerage Facilities Installation

Tweet on Twitter
Share on Facebook
Share on Line

Page ID1005197 Updated on October 23, 2026

PrintPrint in large text

Status of Buried Pipes in Inagi City

Inagi City is entirely a separated sewer system area, and when installing drainage facilities, it is basically required that all rainwater inside the premises be fully infiltrated, except for some infiltration-prohibited areas (note).

Also, if there is a rainwater pipe (blue line) on the road in front of the planned construction site in the sewer ledger, it is possible to connect the overflow portion.

On the other hand, in areas where infiltration is not possible, infiltration facilities cannot be installed inside the premises. Rainwater collected in storage, etc., will be discharged outside the premises through rainwater pipes.

Note: The infiltration-prohibited areas are within the Minamiyama East Land Readjustment Project area and some developed areas where high embankment construction has been carried out.

Viewing of Public Sewerage Ledger

Regarding the buried status of public sewerage facilities managed by Inagi City, this information has been published on this page since FY2025.

Accordingly, the window confirmation and printing services for buried pipe information for Business Operators have been discontinued. We appreciate your understanding.

Usage Precautions

Those who have viewed the sewerage ledger are considered to have confirmed and agreed to the following precautions.

Please make sure to check the content before proceeding.

1 Inagi City shall not be liable for any losses or damages arising from the use of the sewerage ledger.

2. The following actions are prohibited when viewing the sewerage ledger.
　(1) Sale and redistribution of the sewerage ledger
　(2) Process the downloaded data
　(3) Commercial use
　(4) Acts that may cause disadvantage or damage to Inagi City or a third party, or acts that pose a risk of such.
　(5) Other actions deemed inappropriate by the Mayor of Inagi City

3 Changes, deletions, or suspensions of access to the contents of the sewerage ledger may occur without prior notice.

4 We strive to provide the most accurate information possible, but the "Public Sewerage Ledger" is not based on detailed measurements of the site. There may be cases where the information does not match the actual conditions on site due to construction status or where details such as pipe types are unclear, so please investigate and confirm the site before use.

Index Map of Sewerage Ledger of Inagi City

This is the index map of the sewerage ledger.

  • After checking the page number of the desired location from the index map, please open the corresponding PDF file below to confirm.
  • Since there are no public sewerage facilities indicated by the page number in black, the sewerage ledger is not published.
  • Please print and use the PDF file for a copy of the sewerage ledger.

Sewerage Ledger (The file name is the page number of the index map)

Regarding the Viewing of Drainage Facility Completion Drawings

Viewing of the completed drainage facility drawings requires an application at the counter.
Only the owner or those with a power of attorney (including mediation contracts) are allowed.

  • Identification of visitors will be conducted using driver's licenses, passports, etc.
  • In principle, you must submit the original power of attorney. Please note that it will not be returned.
  • If you have a mediation contract, please submit a prepared copy in advance.

Request

  1. Inquiries about buried information by phone or other means are not answered because there is a risk of providing incorrect information.
  2. For inquiries about the water supply, please contact the Tokyo Metropolitan Waterworks Bureau Tama Service Station.

To view the PDF file, you need "Adobe(R) Reader(R)". If you do not have it, please download it for free from Adobe website (new window).

This page is managed by the Urban Environment Management Department Sewerage Division

2111 Higashi-Naganuma, Inagi City, Tokyo 206-8601
Phone number: 042-378-2111 Fax number: 042-378-9719
Contact Us for the Sewerage Division, Urban Environment Management Department, Inagi City

Please let us know your feedback on how to make our website better.

Was the content of this page easy to understand?
Was this page easy to find?


We cannot respond to opinions entered in this field. Also, please do not enter personal information.