3.4. wbl maria isaia - lemesos pilot

2nd AQUAKNIGHT Conference,
21 May 2014, Aqaba, Jordan
Water Board Lemesos1
LEMESOS PILOT PROJECT
Maria Isaia, Water Board Lemesos
m.isaia@wbl.com.cy
2nd AQUAKNIGHT Conference
"Water Loss Management in the Mediterranean
Countries:
the AQUAKNIGHT Project Results“

Contents of the Presentation
• Introduction about the Lemesos Water Board
• Introduction about the Lemesos Pilot Area
• Pilot Activities to date (up to May 2014)
• Pilot activities planned for the next 6 months
(June 2014 - December 2014)

Water Board of Lemesos
 Established in 1951
 Semi-government, non-profit organization
 Supply of potable water only
 Number of employees : 100
 Area served : 100 km2
 Population Served : 170.000
 Annual water supply : 16 million m3
 Number of consumers : 100.000
 Length of pipe network : 1.000 km
 Annual turnover : € 20 million
 30 Reservoirs, 65.500 m3 storage capacity
 Elevations from 0 to 430 m
 10 Pressure Zones
 83 DMAs
 Average daily water supply 43.800 m3

Water Supply System

Water Supply Network
• 30 Reservoirs
• 65.500 m3 storage
• Elevations from 0 to 430 m
• 10 Pressure Zones
• 83 DMAs
• 1.000 Km pipe network
• Average daily water supply 43.800 m3
DMA Design Key Considerations
DMA categories
Small : <1.000 properties
Medium : 1.000 – 3.000 properties
Large : 3.000 – 5.000 properties
Factors considered in DMA design
 Minimum variation in ground level
 Single entry point into the DMA
 Well defined DMA boundaries
 Area meters correctly sized and located
 Apply pressure management
 Continuous monitoring

DMA 921 is divided into 3 smaller DMAs
• DMA 324
• DMA 327
• DMA 328
The division of DMA 921 was planned
in order to improve the operation and
control of the water supply network,
to reduce the pressure and
subsequently leakage.
DMA921 DMA324 DMA327 DMA328
Min Elevation 68m 76m 82m 72m
Max Elevation 116m 105m 110m 110m
PRV No Yes No Yes
Min Pressure 16m 20m 22m 22m
Max Pressure 64m 45m 50m 38m
DMA327 will be further divided
Lemesos Pilot Project
Introduction to Lemesos Pilot DMA

INLET CHAMBER
Flow meter, pressure regulation, Telemetry
Average Pressure
High Pressure
Low PressureSub-District

Pilot Area Sub-District
No. of inlets 1 1
No. of Closed boundary valves 6 1
No. of flow monitors installed 1 1
Network length and prevalent material
7,8 Km
Asbestos Cement (AC)
1,15 Km
Asbestos Cement (AC)
No. of connections/Km 37 31,3
No. of meters 361 78
Estimated population 718 155
Private tanks (yes/no) Yes Yes
Minimum and maximum elevation (m) 76 - 105 72 - 84
Average pressure (m) 32 30

Task / Activities 2012 2013 2014
Task 2: Pilot Projects 1 2 3 4 5 6 7 8 9 10 11 12 1 2 3 4 5 6 7 8 9 10 11 12 1 2 3 4 5 6 7 8 9 10 11 12
Activity 2.1
Acquisition of equipment
Activity 2.2
Active Leakage Control
Activity 2.3
Calculation of NRW
components
Activity 2.4
Evaluation of Real Losses
Activity 2.5
Evaluation of Apparent
Losses
Pilot Project Activities up to May 2014

Equipment and supplies Total Cost Date of receipt
TBox RTU complete with panel box and photovoltaic module € 2.407 September 2012
100 Customer meters (DN15, Q3=2.5 R=315 Volumetric) € 2.515 15/03/2013
Automatic meter reading (100 MIU modules, Hand Held Computer and Software) € 5.667 15/03/2013
Pressure meters (upstream and downstream of the DMA PRV) € 394 August 2012
GSM Data loggers with integral pressure transducer € 4.054 June 2012
Unmeasured Flow Reducers (UFR) € 2.859 28/03/2013
Master Meters (DN100 for the Pilot DMA and DN50 For the Sub-District) € 1.602 July 2012
Pressure Reducing Valves (PRVs) DN100 for Pilot DMA and DN50 for Sub-District € 1.685 August 2012
Subtotal Equipment and supplies € 21.183
Infrastructure Total Cost Date of execution
Leak detection € 5.000
Finished by the end of
October 2013
Civil works for meters and tanks testing € 5.000
October 2013
Civil works for valves installation and district set up € 5.000
December 2012
Leak repairs in the district € 5.000
October 2013
Subtotal Infrastructure € 20.000
2.1 Procurements

2.2 Active Leakage Control
Equipment Installation and District setup

Zero Pressure Test

Actual
MNF
Metered
Properties
Residential
properties
Commercial
properties
Exceptional
Commercial Use
Residential
Night Use
Commercial
Night Use
Background
Losses
Target Night
Flow
Actual Total
Losses
Locatable
Losses
m3
/h No. % No. No. m3
/h m3
/h m3
/h m3
/h m3
/h m3
/h m3
/h
1,44 361 90 325 36 0,50 0,32 0,57 0,45 1,34 0,55 0,10
DMA324 Minimum Night Flow analysis

Pilot DMA Pressure monitoring (Hi, Mid and Lo)

2.3 Water Loss Calculation
1 1,1 1.1.1 1.1.1.1 A.
Distribution Authorised Billed Revenue Water
Input Consumption Authorised 17.671
Volume Consumption 1.1.1.2 17.671
17.671 63,61%
0
17.671 1.1.2 1.1.2.1 B.
Unbilled Authorised Non- Revenue
Consumption 0
1.1.2.2
0
0
1,2 1.2.1 1.2.1.1
27.782 Water Apparent Losses
Losses 88
972 1.2.1.2 10.111
3,50% 36,39%
884
10.111 1.2.2 1.2.2.1
Real Losses
8.517
1.2.2.2
9.139
32,90% 0
1.2.2.3
622
Simplified Water Balance using the IWA methodology (all figures in m3)
Unbilled Metered Consumption
Unbilled Un-metered Consumption
Unauthorised Consumption
Customer Metering Inaccuracies
Period: 2/1/2013 to 2/5/2013 (120 days)
Billed Metered Consumption
Billed Un-metered Consumption
Leakage on Transmission and/or Distribution Mains
Leakage and Overflows at Utility’s Storage Tanks
Leakage on Service Connections

2.3 Water Loss Calculation
1 1,1 1.1.1 1.1.1.1 A.
Distribution Authorised Billed Revenue Water
Input Consumption Authorised 42.638
Volume Consumption 1.1.1.2 42.638
42.638 85,76%
0
42.638 1.1.2 1.1.2.1 B.
Unbilled Authorised Non- Revenue
Consumption 0
1.1.2.2
0
0
1,2 1.2.1 1.2.1.1
49.717 Water Apparent Losses
Losses 213
2.345 1.2.1.2 7.079
4,72% 14,24%
2.132
7.079 1.2.2 1.2.2.1
Real Losses
4.112
1.2.2.2
4.734
9,52% 0
1.2.2.3
622
Simplified Water Balance using the IWA methodology (all figures in m3)
Period: 2/5/2013 to 2/1/2014 (245 days)
Billed Metered Consumption
Billed Un-metered Consumption
Unbilled Metered Consumption
Unbilled Un-metered Consumption
Unauthorised Consumption
Customer Metering Inaccuracies
Leakage on Transmission and/or Distribution Mains
Leakage and Overflows at Utility’s Storage Tanks
Leakage on Service Connections

2.4
Leak detection
noise loggers and correlator
YES October 2013
2.4
Leak repairs under continuous flow
monitoring
YES October 2013
2.4 Quantify water recovered YES October 2013
2.4 Evaluation of Real Losses
Logging a large consumer (private hospital)
to determine the effect on MNF
Noise logger deployment Noise logger patrolling

DMA 324
Deployment Patrol Correllation
08/10/2013 09/10/2013
Permalog No. Location Leak / No Leak Level Spread
2090742 SV Ελλης Λαμπέττη 14 N 11 14
2090743 FH Ελλης Λαμπέττη N 8 28
2090744 SV Τζένης Καρέζη N 9 13
2090747 FH Εκτωρος 10 N 6 27
2090751 FH Αγ. Μάρωνος Θεωγνισος N 8 10
2090752 FH Σκάρλατη L 26 5
2090757 FH Ελλης Λαμπέτη N 11 17
2090759 SV Ελλης Λαμπέτη Crossing N 8 6
2090774 SV Τζένης Καρέζη
2090776 FH Εκτωρος N 8 12
2090783 FH Γιώργου Ζαμπέττα N 3 8
2090787 FH Σκαρλατη 23 N 15 7
2090789 SV Αιμίλιου Φράγκου N 13 7
2090795 SV Βασίλη Τσιτσάνη & Σκαρλάτη N 18 6
2090799 SV Απ. Καλδάρα L 31 3
2090801 SV Αιμ. Φράγκου N 16 5
2090802 SV Σκαρλάτη 3 N 16 4
2090803 FH Μαρίας Ρούσου & Ημαθίας N 8 5
2090804 SV Απ. Καλδάρα N 15 10
2090807 SV Σκαρλάτη & Ελλης Λαμπέτη L 40 10
2090809 SV Σκαρλάτη & Αγ. Μάρωνος N 4 12
2090815 SV Τζενης Καρέζη N 3 6
2090816 SV Ελλής Λαμπέτη & Σουμπερτ L 23 6
2090820 SV Σκαρλάτη 23 N 11 9
2090827 FH Απ. Καλδάρα Φροντιστήριο L 35 3 Leaking FH
2090829 FH Ημαθίας N 3 4
2090831 SV Έλλης Λαμπέτη (τέρμα) N 9 4
Leak Noise Logger Deployment and patrolling at DMA324
95 Leak Noise Loggers Deployed 12 Loggers detected noise 2 Leaks detected 48 m3
/day recovered

Activity 2.5: Evaluation of Commercial Losses
Utility Water Board of Lemesos
Zone DMA 324
Name Solomos Charalambous start end Duration
Date start end 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 [tot. weeks]
ACTIVITY 2.5.
TEST 1
UFR Test to quantify enhancement in water metering (coordinated by
IREN)
To be implemented in all pilots 1 19
19
Step 1.1 Consumer Audit 1 4 4
Step 1.2 Sub-district Master Meter installation 5 5 1
Step 1.3 Field test exercise (4 months duration) 5 5 1
Stage 1.3.1 Readings of the existing consumer meters and the Sub-district master
meter 6 7
2
UFR Installation upstream (or downstream) and adiacent the old
revenue water meter 8 9
2
Stage 1.3.2 Readings of the existing consumer meters + UFR and the Sub-district
master meter 10 11
2
Old revenue water meters replacement with AMR 12 13 2
Send 20 selected old meters + 5 new meters to UNIPA laboratory 14 15 2
Stage 1.3.3 Readings of the AMR consumer meters + UFR and the Sub-district
master meter 14 15
2
UFR unit removal 16 17 2
Stage 1.3.4 Readings of the new AMR consumer meters and the Sub-district master
meter 18 19 2
TEST 2
The assessment of the impact of private storage tanks on water
metering (coordinated by UNIPA)
To be implemented only in the pilots of AW and WBL 12 24
13
TEST 3
The determination of customer demand patterns and legitimate night
use by customers (coordinated by Signal Generix, with support of
UNIPA and IREN)
To be implemented in AWCO, Sonede and IREN 16 24
9
Step 3.1
Installation of Data Loggers on 1-5 consumers based on the
description of Test3 16 17
2
Step 3.2 UFR unit removed as in 1.3.3 16 17
Step 3.3 Water consumption recording with a time resolution of 1 minute
(without UFR) 18 19 2
Step 3.4 Send Results to SG for a preliminary analysis and assesment of the
quality of the measurements 20 21 2
Step 3.5 Installation of Data Loggers on other 1-5 consumers based on
directions of SG after the analysis of the first measurements 22 22 1
Step 3.6 Water consumption recordings on the new consumers with a time
resolution of 1 minute (without UFR) 23 24 2
November
Not applicable due to the complexity of the internal plamping sytem of the houses
December
Preparatory
phase,
Acquisition etc.
GANTT TESTS 2.5 activities in 2013
The Worksheet is protected without a password, so that you can insert actual data of implementation in your pilot
This worksheet was completed by
January February March April May June July July August September October

Test
Period
SubDMA
Master
meter
Sum of
consumer
meters
Difference
From To days m3
m3
m3
% m3
/day m3
/meter/day
Old water meters without UFR 11/03/2013 04/04/2013 24 690 664 26 3,77% 1,08 0,014
Old water meters with UFR 22/04/2013 08/05/2013 16 467 453 14 3,00% 0,88 0,011
New water meters with UFR 11/06/2013 25/06/2013 14 466 466 0 0,00% 0,00 0,000
New water meters without UFR 01/07/2013 15/07/2013 14 436 412 24 5,50% 1,71 0,022
Activity 2.5 Test 1 - Results

Activity 2.5 Test 1 - Installation of UFRs

The house plumping system in Cyprus provides ‘municipal’ water supply in the garden, the
kitchen and the cold water storage tank. Also the cold water storage tank provides water
supply to the house and the solar water heater.
Due to the above complexity and the need of at least 5 data loggers per consumer, the test
could not be performed.
‘Municipal’ water supply to kitchen
cold water supply to house
‘Municipal’
water supply
to the garden
Water meter
Storage tank (cold water)
Storage tank (hot water)
Solar thermal collectors
hot water supply to house
House plumping schematic
Test 2 - Assessment of the impact of private storage tanks on water metering

Activity 2.5 Test 3 - Customer meter logging

Logging of consumer meter with 1 minute logging rate

Planned Activities for the next 6 months
The Minimum Night Flow (MNF) is currently very low. Leakage in the DMA is at a very low level and
is considered uneconomic to search for more leaks. The DMA Minimum Night Flow (MNF) is
continuously monitored and if increased, then Activity 2.4 will be applied again.
Task 2: Pilot Project 2014
Activities / Task 1 2 3 4 5 6 7 8 9 10 11 12
Activity 2.3 Recalculation of NRW components
Activity 2.4
Evaluation of
Real Losses
Noise Loggers
Correlators
Leak Repairs
Quantify water recovered
(July 2014 to December 2014)

Water Demand Management activities
 Division of the network into DMAs
 Pressure Management
 Pipeline and Asset Management (Selection, Installation and Maintenance
with high quality materials and procedures)
 Knowledge of the network (Correct maps, continuous monitoring of flow
and pressure with Telemetry or other logging equipment)
 Speed and Quality of Repairs
 Active Leakage Control
The application of the IWA Water Loss Task Force approach on Efficient Water
Demand Management has a positive effect on leakage reduction
Conclusions

Maria Isaia
m.isaia@wbl.com.cy
THANK YOU

3.4. wbl maria isaia - lemesos pilot

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