Leakage Prevention Guidebook - Bureau of Waterworks Tokyo ...

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Table-4 Specifications of leakage cases in FY20101 By Uses2 By cases(Mains)(Submains)(Service Pipes)- 22 -
Table-5 Organization of water leakage preventionDirector Water Supply Div. Water Supply Sect. Management Subsect.Leakage Prevention Subsect.Research Subsect.Emergency Water ServiceSquadBranches(6) Water Supply Sect.(7) Management Subsect.(7)Leakage Prevention Subsect.(7)Leak Prevention Suboffice.(7)Construction CoordinantionCharge.(7)Tama Water Works CenterTraining and TechnicalDevelopment CenterNumber of persons working in the Waterworks is 4,074 (at April 2011).333 persons of them are engaged in leakage prevention of the 23 wards.- 23 -
Page 1: Leakage Prevention Guidebook2011Bur
Page 4 and 5: 3.4 Time integral type leakage dete
Page 6 and 7: found, On the other hand, the new l
Page 8 and 9: 2 Countermeasure of leakage prevent
Page 10 and 11: (2) Integration of service pipes un
Page 12 and 13: In 23 wards, we have long addressed
Page 14 and 15: next generation and improvement of
Page 16 and 17: Fig.12Portable minimum flow meter3.
Page 18 and 19: unaffected by traffic noise or layi
Page 21 and 22: conductivity detector, or precise m
Page 23 and 24: 5 Annex- 19 -
Page 25: Table-2 Trends in total distributio
Page 29 and 30: Table-7 Trends in percentages of du

Leakage Prevention Guidebook - Bureau of Waterworks Tokyo ...

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