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Business indicators based on the Water Supply Business Guidelines

Final update date May 11, 2021

What is the Water Supply Business Guidelines?

Established in January 2005 by the Japan Water Works Association, which is made up of water supply business related organizations nationwide, with the aim of improving management efficiency, improving business management transparency, and improving the service level of the Japanese water supply business. It is a standard applied to water utilities nationwide. It was revised in March 2016.

For inquiries about water supply, please contact Water Works Bureau Customer Service Center.

Water Works Bureau Customer Service Center

Telephone: 045-847-6262 Fax: 045-848-4281
※Please be careful not to make a mistake.

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Inquiries to this page

Corporate Planning Division, Water Works Bureau Business Planning Division

Telephone: 045-671-3127

Telephone: 045-671-3127

Fax: 045-212-1157

Email address: [email protected]

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Page ID: 465-441-122

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