Water supply in Yokohama

Last updated on April 1, 2025.

"Yokohama Water Supply" is a booklet explaining the business outline of City of Yokohama, Water Works Bureau.

Booklet download

Cover design

Cover of the water supply in Yokohama

Download (all pages)

"Waterworks of Yokohama 2025" (PDF: 5,731KB)

Contents
Page	Contents
Cover and back cover (PDF: 898KB)	Cover/back cover
P1～P2（PDF：765KB）	History / Outline / Data of the Lottery / Yokohama Water Supply
P3～P4（PDF：1,363KB）	Hometown of Water Source of Yokohama City
P5～P6（PDF：948KB）	Water purification plant in Yokohama until tap water is available
P7～P8（PDF：711KB）	Safe and Secure Water Tap Water Quality in Yokohama City
P9～10（PDF：830KB）	Safe and secure water quality inspection points in the city / water quality standards for tap water and water quality test results of city hydrants (faucets)
P11～P12（PDF：841KB）	Mechanisms of household water supply, rate distribution and water supply
P13～P14（PDF：769KB）	Home water and charge water charges
P15～P16（PDF：809KB）	Management and Finance
P17～P18（PDF：976KB）	Water Works Bureau and the Environment Initiatives in Michishi Village, Yamanashi Prefecture
P19～P20（PDF：919KB）	Water Works Bureau and Environmental Accounting
P21～P22（PDF：892KB）	Disaster countermeasures for disaster prevention and reduce disaster damage / industrial water supply business, on-site water supply classroom

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

Water Works Bureau Customer Service Center

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

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