Embarking on the World’s Largest NRW Management Project · Embarking on the World’s Largest NRW...

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Embarking on the World’s Largest NRW Management Project By IRINEO L. DIMAANO Head, Maynilad Central NRW Mgt. Manila,Philippines IWAWater Loss 2010 69 June 2010, Sao Paulo, Brazil

Transcript of Embarking on the World’s Largest NRW Management Project · Embarking on the World’s Largest NRW...

Embarking on the World’s Largest               NRW Management Project

By  IRINEO L. DIMAANOHead, Maynilad Central NRW Mgt.

Manila,Philippines

IWA‐Water Loss 20106‐9 June 2010, Sao Paulo, Brazil

Maynilad

• Maynilad is the Philippine’s largest water company

• Serves  more than 6 million people ; with an area of 540 square kilometers

• Covers 12 cities in Metro Manila  and 5 towns in Cavite

• Managed by DMCI‐MPIC Water Company

Treatment Plants :       2Kilometer of Pipes :   5,779Pumping Stations :      13Reservoirs :      16 

No.of Customers :   814,645 Supply Duration :   21 HrsAverage Pressure :     7 M

No. of Employees :  2,025Ratio/1000 wsc :  2.5    

Profile 

Maynilad’s CAPEX Program 

• 5‐year  (2008‐12) CAPEX  of 38  BPhP or  828 MUSD

To improve level of service

To reduce and recover  non‐revenue water

To supply additional 3 million people

426216

112 722

CAPEX Cost in MUSD (2008‐2012)

NRW Management Operations Support

Water Sources Water Waste

Calamity Mitigation

Maynilad’s CAPEX Program 

NRW Management is the top priority

Investing more to improve service…

TOTAL CAPEX = 828 MUSD

COMPARISON OF ANNUAL CAPEX(1997‐2012)

Old Maynilad13 MUSD

New Maynilad38 MUSD

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BENPRESS/SUEZ MWSS New MayniladMPIC‐DMCI

Non‐Revenue Water 

No significant change in NRW

NRW

 target 40% in 2012

What were the reasons for high NRW ?

• Lack of understanding the problem   

• Lack of capacity

• NRW reduction programs before were often poorly managed and not properly coordinated

• NRW reduction was a one‐time activity

• Limited management support 

No real NRW Management Program

High NRW … huge opportunity

TOTAL CAPEX = 828 MUSD

New  Maynilad in 2007DMCI‐MPIC Water Company

High NRW … huge opportunity

TOTAL CAPEX = 828 MUSD

• High NRW volume of 1500 million liters per day

• Even  only a 50%  NRW recovery is enough to supply 500,000 new connections 

• Eliminates the need for new water sources and           reduces environmental impact

• Cost reductions on production, pumping, and  O&M 

• Every 1% reduction in NRW  translates to 250 MP yearly additional revenue

• High NRW level of 66% and  losing 1,500 MLD in 2007

• No full time NRW program

• Limited  NRW knowledge                 and expertise

• Needed innovative & aggressive approach  to reduce water loss

• Required full budgetary support

• Top management involvement

What were the challenges in 2007 to   reduce NRW ?

Year 2008:  The Beginning

• Created the Central NRW team

• New office environment

• Hired new and young engineers

• New tools, equipment, vehicles                                        

• The lack of expertise became obvious

• A technical partner was needed

• Full management support and leadership to ensure proper NRW implementation

NRW Team

2

545

98

183221 234

307 320350 375

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500Jan‐08

Apr‐08

Jul‐08

Oct‐08

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Apr‐09

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Number of staff

Building‐up of NRW team 

Early 2009, Maynilad engaged Miya for a Technical Service Agreement (TSA)

• to  provide NRW expertise and be co‐responsible for agreed  NRW targets in 5 years (2008‐2012)

Maynilad‐Miya Engagement

System Input Volume

2,282 MLD(+/- 3 %)

Authorized Consumption

786 MLD

Billed Authorized Consumption

785 MLD

Billed Metered Consumption

785 MLD Revenue Water

785 MLDBilled Un-metered Consumption

0 MLD

Unbilled Authorized Consumption

1 MLD(+/- 22 %)

Unbilled Metered Consumption

Marginal

Non-Revenue

Water1,497 MLD

(+/- 5 %)

Unbilled Un-metered Consumption

1 MLD (+/- 22 %)

Water Losses1,496 MLD

(+/- 5 %)

Commercial Losses293 MLD(+/- 20 %)

Unauthorised Consumption

202 MLD (+/- 29 %)

Customer Meter Inaccuracies and Data

Handling Errors91 MLD (+/- 14 %)

Physical Losses1,203 MLD (+/- 8 %)

75% physical losses

25% commercial 

losses

Water Balance 

Maynilad 2007 Water Balance

2007 System wideIWA-WB of Maynilad

NRW Programs

• HA and DMA establishment

• Active leakage control

• Selective pipe replacement

• Pressure management

• Integrated meter management

• GIS mapping/data base mgt

• Hydraulic modelling

• Capacity building

• R Liemberger /R Pilcher

• S Hamilton

• R Liemberger

• A Heiman

• F Arregui

• P Fanner

• D Rogers

• M Dickinson

Maynilad

830,000 connections

910

89-1

9-29-39-4

9-59-6

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10-110-210-3

10-410-5

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Hydraulic Zones

DMAs

20,000-50,000 connections 500-1,200 connections

Establishment of HA and DMA

Maynilad’s current undertakings

Establishment of HA and DMA

582 established DMAs

842 average no.of connection 

32% average NRW in all DMAs 

685  lpcd ave. water loss rate 

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Target DMA 275 525 648 767 844Actual DMA 395 582Target Coverage 37 60 80 90 100Actual Coverage 44 59

2008 2009 2010 2011 2012

Leak Detection Management

• Before : zero detection team

• Now : 22 ‐30 full time teams

• Young and new engineers

• New equipment & vehicles

• Trained by experts

• Blanket leak survey inside & outside of DMA

• Aggressive leak repair 

• Sahara pipe inspection on the primary pipes (big diameter)

Sahara pipe inspection

• First  operation in Asia

• 2‐units Sahara operating:                              1 by PPIC & 1 by Maynilad

• Training of Maynilad staff

• Results are encouraging 

• 80 leaks in 20 KM pipe surveyed

• 4‐5 leaks per kilometer of pipe

• Discovering network anomalies

• Updating pipe lay‐out

Sahara detected leaks on primary pipe

6/17/2010

Leak Video

Leak Video

Metering Program

• Re‐organized meter department:             put in young manager and staff

• Re‐evaluated meter performance:           from 23 to 5 quality meter brands

• Right sizing large customer

meters

• Using more accurate meters

• Testing new technologies

• Guided by meter expert0

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Months

Jan 2006 to Apr 2010 Top 100 BV

Above‐ground DMA instrumentations

• Lack of understanding

• Lack of capacity

• Old  equipment

• Lack of data

• Less  motivation

• Limited management support

• Full understanding

• Dedicated NRW team

w/full ownership and guided by experts

• Modern equipment

• Database management

• More incentive programs

• Full management support/involvement

THEN  NOW 

NRW management transformations…

Initial Results

UNIT EO 2007 EO 2009 VARIANCE

NRW VOL MLD 1572 1370 ‐13%

NRW % 67 57 ‐10%

NRW  LPCD 2979 2018 ‐32%

Reduced the NRW‐

Performance Indicators

Initial Results

Improved the  level of service‐UNIT EO 2007 EO 2009 VARIANCE

No.of Service Connection

EA 703,519 814,645 16%

Supply Duration

HRS 18 21 17%

AveragePressure

M 5 7 33%

Performance Indicators

Initial Results

UNIT EO 2007 EO 2009 VARIANCE

Billed Volume

MLD 782 1043 33%

Total Revenue

M USD 178 230 29%

Increased the revenue‐

Performance Indicators

• NRW reduction is a complex problem which needed aggressive & innovative approach

• Dedicated NRW team guided by experts

• Invest on capacity building of the staff which is the company’s best asset

• NRW is a continuing program not an adhoc function

• NRW reduction is not going to be free but will require substantial but prudent budget

• Full Top Management involvement & support is needed

Lessons learned based on Maynilad’sexperience

End of presentation                

MARAMING  SALAMAT  PO!

End of presentation                

THANK YOU!