130 years history of Yokohama water supply
Since Japan's first modern water supply was born in Yokohama and reached its 130th anniversary, Water Works Bureau's 100th anniversary of the establishment of the modern water supply, since Japan's first modern water supply was born in Yokohama for 130 years. Focusing on this, we produced the "Yokohama Water Supply 130 Year History" as a collection of records and materials that objectively describe historical facts.
"Yokohama Channel 130 Years History" (Overall Version) (PDF: 69,239KB)
Cover ~ First (PDF: 1,541KB)
"Yokohama Water Supply 130 Years History" Chapter 1 Water Supply Expansion 1887-1987 (PDF: 31,348KB) that supported the establishment of modern water supply and the development of large city Yokohama
"Yokohama Water Supply 130 Years History" Chapter 2 Establishment of Stable Water Supply System and Financial Soundness 1988-2001 (PDF: 12,828KB)
"Yokohama Water Supply 130 Years History" Chapter 3 Management Reform and Customer Satisfaction 2002-2009 (PDF: 13,864KB)
"Yokohama Water Supply 130 Years History" Chapter 4 Promotion of Water Supply Management with Security and Trust 2010-2017 (PDF: 12,746KB)
"Yokohama Water Supply 130 Years History" End Chapter To support the future of living and town-Current and future design of Yokohama Water Supply (PDF: 8,337KB)
Material section (PDF: 4,983KB)
Main References-Editing Postscript (PDF: 855KB)
"Yokohama Water Supply 130 Years History" Open Data
We release a part of statistical document published in "Yokohama Channel 130 years history" as open data.
Changes in population and water supply (CSV: 16KB)
Changes in the amount of water used by use 1927-1972 (CSV: 10KB)
Change in water usage by use 1973-2018 (CSV: 14KB)
Changes in yield (CSV: 4KB)
Industrial Water Supply Business Statistics (CSV: 4KB)
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