Answers to frequently asked questions (sewers and waterways)

• In the case of "only the toilet is clogged" or "water does not flow only in the kitchen or bath", it is possible that the drainage system in the residential area may be clogged. The management owner of the drainage system in the residential land is to perform it, so please clean it yourself, or if you can not clean it yourself or need to repair it, please ask a drainage construction contractor.
• For consultation on drainage facilities in residential lands, please consult with the contractor who constructed the water around your home, the drainage equipment manufacturer to use, or the nearest "Yokohama City Drainage Designated Construction Shop".
• If all sewers in the residential land do not flow, please contact Public Works Office (telephone 045-531-7361) as public sewers may be clogged.

• Sewage pipe flushing work must be a designated construction shop in Yokohama City. Designated construction shopsYokohama City Drainage Equipment Designated Construction Shop (List)Please take a look at it.
• It is a business group in Yokohama."Yokohama City Pipe Works Cooperative" (outside site)(Telephone 045-681-6631) also introduces members of the union (Yokohama City Drainage Equipment Designated Construction Shop). Reception hours is open from 8:30 to 17:30 (except Saturdays, Sundays and holidays and from December 29 to January 4).　However, the union will only introduce you. For consultation on the details and costs of the construction, please go directly with the designated drainage construction shop.

• During heavy rains, it may cause road flooding and flooding. Please contact Public Works Office (telephone 045-531-7361).

• Please contact Public Works Office (telephone 045-531-7361).

• Please contact Public Works Office (telephone 045-531-7361)."To put a sewer pipe in a private road,"Please take a look.

Inspection commercial law has occurred in which unnecessary residential land is inspected, charges unreasonable charges, and sells chemicals and equipment. If you feel suspicious, please contact Environmental Planning Bureau Sewer Management Division (telephone 045-671-2830) or Public Works Office (telephone 045-531-7361).

• "Is it necessary to request inspection and cleaning of drainage facilities?"(To the Environmental Planning Bureau page)
• "Please be careful about the" Inspection Commercial Law "of sewage and drainage facilities!"(To the Environmental Planning Bureau page)

• The waterways in Kohoku Ward are managed by Kohoku Public Works Office. Please contact Kohoku Public Works Office (telephone 045-531-7361) with location and situation.

• It is managed by Public Works Office (telephone 045-531-7361). Please contact me.

• Please refer to Road and Highway Bureau River Management Department River Management Section (telephone 045-671-2856).
  (It was changed from the Environmental Planning Bureau Environmental Facilities Department Administration Division on April 1, 2009 due to organizational reform. Phone number has not been changed.)