Sakae Public Works Office Sewerage

Yokohama City Sewer River Bureau website

We live with clean water. Using water means polluting the water. It is our duty to clean and return dirty water to nature. The sewer protects clean rivers and seas.

Failures of pumping toilets - It is open from bad smells and trouble of pumping. Clean and smell-free flush toilet can be used in any household.

Many modern cities, including Yokohama, have developed in lowlands. Therefore, drainage is not smooth, such as during heavy rains, and often suffers from flooding. The sewer has the role of keeping rainwater from collecting, just like rivers and waterways.

The Dob River causes odors and flies and flies. By improving the sewer, these Dob rivers and dirty puddles will be eliminated. It is not only beautiful, but also helps to create a hygienic city.

The method of sending sewage and rainwater to the water reclamation center in separate pipelines is called "separate sewer". It has the advantage that rainwater can flow directly into rivers and the sea even if heavy rain falls.
Currently, diverted sewers account for about 70% of Yokohama City.

⇒Sakae Ward's sewers are largely divided into separate sewers.

The method of transporting sewage and rainwater used in homes and other places to the water reclamation center in one pipeline is called "merging sewer." It is efficient because there is only one pipeline, but when heavy rain falls, there is a problem such as having to flow some water from the pumping station into the river or the sea without sufficient treatment.

Yokohama City is working to improve the water quality of rivers and seas by improving rainwater ponds.

Construction cannot be done unless it is a designated construction shop in Yokohama City. Look at list of Yokohama-shi drainage designation construction shops (outside site) (we link to Yokohama-shi sewer River Bureau) or please talk with Yokohama-shi pipe construction cooperative (telephone 045-681-6631).

Yokohama Drainage Equipment Designated Construction Shop
In Yokohama City, construction shops that can perform drainage construction and flushing work are designated as "Yokohama City Drainage Designated Construction Shops" (hereinafter referred to as "designated construction shops").
Drainage equipment construction: Construction of drainage facilities for draining sewage from toilets, kitchens, bathrooms, etc. and rainwater into the sewer
Washing work: Remodeling the toilet into a flush toilet
In Yokohama-shi sewer regulations Article 32 (outside site), "we cannot perform construction such as new construction of drainage facilities and remodeling work of Kumitori toilet to flush toilet in treatment area unless it is person designated by the mayor. " As it is stipulated, be sure to ask designated construction shop for drainage construction.