Journal of Water Supply: Research and Technology—AQUA Vol 56 No 6–7 pp 453–462 © IWA Publishing 2007 doi:10.2166/aqua.2007.021
Pipeline management in Tokyo - measures for leakage prevention
Kazuhiko Fujimura and Kazuhiko Fujimura
Tokyo Water Supply Division, Bureau of Waterworks, Tokyo Metropolitan Government, 2—8—1 Nishishinjuku Shinjuku ward, Tokyo, Japan Tel.: 03-5320-6433. Fax: 03-5388-1683fujimura-kazuhiko@waterworks.metro.tokyo.jp
ABSTRACT
Tokyo Metropolitan Government has promoted measures for leakage prevention as one of our major activities. In recent years, we have been particularly targeting replacing lead pipes where leakage outbreak probability is high. In 1945, at the end of World War II, the leakage rate was about 80%. However, in 2005, the leakage rate decreased to 4.2% of the distribution water volume of 1.616 billion m3. This report describes our approach to preventing leakage.
Keywords: lead pipe; leakage prevention; leakage prevention statistics data; planned work; preventive measures; stainless steel pipe
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