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Non-Revenue WaterManagement

【Leakage Control】

SUIDOU ＴＥＣＨＮＩＣＡＬ SERVICE ＣＯ.， LTD

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Non-Revenue WaterManagement

1. Management and analysis of the leakage

2. Periodical exchange of the aging pipe

3. Exchange and installation of the new

meters

4. Grasp of the water consumption

5. Periodical leakage investigation

6. Early repair of the leakage point

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Analysis ofNon Revenue Water

RevenueWater ( %) ㎥ /Ｙ

Non RevenueWater

( %)

Total ( %) ㎥ /Ｙ

Leakage ( %) ㎥ /Ｙ

Illegal Use ( %) ㎥ /Ｙ

Others ( %) ㎥ /Ｙ

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Document-1 Japanese NRW（％）

(×1000㎥ ) (%)

2010 JWRC documents

System Input Volume(Water supply of one year)

14,993,678 100.00

Revenue Water 13,504,332 90.07

Non-Revenue Water 1,489,346 9.93

Leakage investigationimage drawing

ValveLeakage point

Leakage point

Leakage point

DistributionNetwork

Listening to Distribution Network

Listening to Meter and Valve

Leak Noise Correlation

Leakage Monitoring System

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Leakage Investigation Method【Listening to Meter and Valve】

Listening Stick

Meter

Leakage investigation of the service pipe

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Leakage Investigation Method【Listening to Distribution Network 】

Water leak detector

Leakage investigate of the distribution pipe

Investigation situation photograph

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Leakage Investigation Method【Leak Noise Correlation 】

Leakage point

Sensor 1 Sensor 2

Setting example

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Leakage Investigation【Report of the Leakage Point】

Leakage positionRepair point

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New Leakage Investigation【Leakage Monitoring System】

Fixed Monitoring Unit for WaterDistribution Network

・Date display of Water Leak occurrence on LCD

L-sign

・Every late night hours monitoring

・Capable of visual check foroccurrence of Water Leak

by flickering LED

・Fixable on spindle of gate valve bypowerful magnet

・Controllable by magnet with easy operation

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Leakage Monitoring System【L-sign Setting Image】

L-sign

Distribution Network

ValveLED blinkingLeakage point

Leakage point

Leakage point

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Leakage Monitoring System【Setting Photograph】

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Purpose of the InvestigationReduction of Non-Revenue Water

（Prevention of Leakage・Illegal Use）

【Investigation Effect】○ Reduction of new construction expense

○ Water resource conservation

○ Cost cut of water purification plant and the pumpingstation

○ Improvement of the financial status

○ Trust from a water user

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Typical 24 Hour Flow ProfilePrevention of the leakage is required work forwater service business

IWA documents

Enforcement of Leakage Investigation

Flow quantity predictionafter the investigation

After investigation enforcementDecline of the leakage

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Other Necessary WorkChoice of an appropriate investigation methodContinuous enforcement

of the leakage investigationMaking and management

of the drawing(Mapping system)Analysis of the leakage findingsEarly repair systemImprovement of the plumbing technology

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Leakage Point Photograph 1

Leakagefrom a vinyl pipe joint

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Leakage Point Photograph 2

Leakage of the stainless steel pipeby the poor plumbing technology

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Leakage Point Photograph 3

Leakage from a corporation cock cap

Work Contents・Leakage Investigation Trustee Business・Plan and Suggestion of the Leakage Investigation・Sale of Leakage Monitor L-sign

【Investigation Career】Year Client

・2011 Yokohama Waterworks，Japan・2011 Kawasaki Waterworks，Japan・2011 Zama Waterworks，Japan・2012 Yokohama Waterworks ，Japan・2012 Kawasaki Waterworks ，Japanother plurality

As a company specializing in the study of water leakage ,the Companyhas conducted a survey of more than 4000km each year in conjunctionwith the Group companies.

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Corporate Guidance

Company name SUIDOU TECHNICAL SERVICE CO.，LTD.Address 1-45-87-3F,Futamatagawa,Asahiku,Yokohama-city

Kanagawa,241-0821,JAPANPhone number +81-45-360-9220Fax number +81-45-360-9221E-mail address sts@ap.wakwak.comHomepage http://www.suidou-tec.co.jp/sts-e/L-sign Homepage http://www.jwpis.jp

Please ask questions by e-mail

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