For inquiries regarding water supply, please contact the 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.
Here's the text.
Last Updated January 23, 2024
City of Yokohama, Water Works Bureau conducts a charge for part of water quality tests for water utilities and water utilities.
Subject to contract
This is an example.
In addition, we will respond to requests for 51 items of tap water quality standards.
Black rubber (packing, etc.)
Iron rust (obsolete pipe)
Microscopic image of Cryptosporidium (nucleus of sporozoid)
Microscopic image of Cryptosporidium (Ausstic outer wall)
Anabena (odorous organism)
Auracoseira (filtration failure)
Water Works Bureau Customer Service Center
Telephone: 045-847-6262 Fax: 045-848-4281
※Please be careful not to make a mistake.
Water Quality Division, Water Works Bureau Water Purification Department
Telephone: 045-371-5656
Telephone: 045-371-5656
Fax: 045-371-6942
Email address: su-suishitsu@city.yokohama.lg.jp
Page ID: 519-619-840