Waterworks Act (Suido Ho)

The Waterworks Act (Suido Ho) is a Japanese law aimed at improving public health and the living environment. It contains provisions to ensure the supply of clean, abundant, and inexpensive water. The law sets water quality standards for tap water and plays an important role in guaranteeing the safety of drinking water. By complying with the standards based on the Waterworks Act, the law seeks to protect the health of the public and create an environment in which people can live with peace of mind. In sake brewing as well, water that conforms to the Waterworks Act is important, and because water quality suited to sake making is required, sake breweries pay careful attention to the selection of their water sources.