Tokyo Metropolitan Government, Bureau of Sewerage

Tokyo sewerage system plays a vital role in ensuring a safe and pleasant living environment and in the makeup of a healthy water circulation system. In addition to cleaning water that is dirtied by use in the daily lives and activities of Tokyo residents and returning that water to the rivers and sea, the system also speedily removes rainwater from land surface of cities.
Here, we would like to introduce the business summary of our bureau and its main policies.