Where can I view and obtain public sewer ledgers?

There are two ways to view and obtain public sewer ledgers:
Regarding the status of buried pipes, inquiries by telephone are not accepted because it is difficult to identify the location or if a mistake occurs is large.

You can browse and print on the administrative map information provision system on the Yokohama City homepage.
Please proceed from the "Daichan Map" in the administrative map information provision system.

Reading and acquisition are possible by the Yokohama City Sewerage Ledger Reading System in the "Yokohama Building Information Center" on the second floor of the City Hall.
The system is free of charge.
Copy acquisition is 30 yen / sheet (A3 version monochrome).

Yokohama-shi administrative map reporting system (outside site)