TRANSCO Water Five Year Planning Statement 2009-2013_Approved Issue

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Abu Dhabi

Dubai

Sharjah

Fujairah

Ras Al Khaimah

Ras Al Khaimah

Umm Al Quwain

DELMA IS.

PRESSURE ZONE 3

SHUWEIHAT PDP

SIR BANIYAS IS.

JEBEL DHANA

SHUWEIHAT PSSHUWEIHAT IPS

(MIRFA)

WESTERN REGION

IPS 1IPS 2

MADINAT ZAYED PS

SUMMIT RES

MUZAIRA PS

ABU DHABI EMIRATES

CENTRAL REGION

ABU DHABI CITY REGIONUNIT I

UNIT II

SHOBAISHI PS

AJBAN PS

SWEIHAN PS

ADPS

TAW PDP

MUSSAFAH PS

EASTERN REGION

PRESSURE ZONE 1

PRESSURE ZONE 2

AAR PS

KHABISI PS

HILLI PS

SAROUJ PS

AL AIN REGION

PRESSURE ZONE 4

Al HAYER TANKS

UMM GHAFFA TANKSAASW PS

SILA

UNIT VUNIT IV

UNIT IIIUAN PDP

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Abu Dhabi

Dubai

Sharjah

Fujairah

Ras Al Khaimah

Ras Al Khaimah

Umm Al Quwain

DELMA IS.

PRESSURE ZONE 3

SHUWEIHAT PDP

SIR BANIYAS IS.

JEBEL DHANA


(MIRFA)

WESTERN REGION

IPS 1IPS 2

MADINAT ZAYED PS

SUMMIT RES

MUZAIRA PS

ABU DHABI EMIRATES

CENTRAL REGION


UNIT II

SHOBAISHI PS

AJBAN PS

SWEIHAN PS

ADPS

MIRFA PDP MUSSAFAH PS

EASTERN REGION

PRESSURE ZONE 1

PRESSURE ZONE 2

AL MAQUAM PS KHABISI PS

SAROUJ PS

AL AIN REGION

PRESSURE ZONE 4

Al HAYER TANKS


SILA

UNIT VUNIT IV

UNIT IIIUAN PDP

FUJAIRAH PDP

HILLI PSAAR PS

Transco 5 Year Planning Statement (2009-2013)

Based on System as of June 2008

APPROVED ISSUE

ASSET MANAGEMENT DIRECTORATE September 2008

TASK TEAM WATER NETWORK DEVELOPMENT DEPARTMENT

ARSENIO C.SEMBRANO Manager

AMER EL ZUBIER GERRY M JOSE PAUL HENRI LERUTH HAIFA SAEED

OLIVER V CHIPONGIAN

ASSET MANAGEMENT DIRECTORATE 2 5 YEAR PLANNING STATEMENT, September 2008

Preface

Pursuant to Condition 15 of the Transmission License, we attach herewith the 8th Five-Year

Water Planning Statement (2009-2013). This annual update of the TRANSCO 5-Year Planning

Statement covers only the water, while the electricity aspects will be submitted separately.

This 5 Year Water Planning Statement consists of the Main Report and supporting Annexure

(Volumes 1, 2 & 3). The structure of the report has been revised to give better clarity in the

content. The quality of the report has been improved as compared to the previous submissions.

The 8th TRANSCO Five-Year Water Planning Statement (2009-2013) update summarizes the

water demand and generation capacity forecast up to Year 2013 and highlights the major strategic

plans for the water transmission system expansion for the next five (5) years. The stage (year)

wise transmission system development topology proposed for the next five (5) years based on the

current on-going & proposed projects are addressed and its implication on the system

performance discussed.

The major deviations in the strategic plans for the development of water transmission system

adopted in this Five Year Water Planning Statement compared to the 6th & 7th Five Year

Planning Statements are highlighted in Chapter 3, Section 3.9 & Table 3.30 of the Main Report.

Any comments and feedback may be sent to the following address:

DR. NENAD (JOE) KOLIBAS Asset Management Director

P.O. Box No.173, Transco, Abu Dhabi Fax: 02 6413367, Phone: 02 6944543

Email: [email protected]


Table of Content PPRREEFFAACCEE

IINNTTRROODDUUCCTTIIOONN

EEXXCCUUTTIIVVEE SSUUMMMMAARRYY

CCHHAAPPTTEERR 11 WWaatteerr DDeemmaanndd FFoorreeccaasstt aanndd PPrroodduuccttiioonn EExxppaannssiioonn PPllaann

1.1 Introduction 1.2 Water Demand Forecast

1.2.1 ADWEC Demand Forecast 1.2.2 Transco’s Assessment

1.3 Generation Expansion Planning 1.3.1 Retirement Plan 1.3.2 New committed Capacities

1.4 Global Water Balance

CCHHAAPPTTEERR 22 WWaatteerr TTrraannssmmiissssiioonn SSyysstteemm PPllaannnniinngg

2.1 Introduction 2.2 Water Transmission Planning Process 2.3 Water Transmission System Planning Criteria

CCHHAAPPTTEERR 33 WWaatteerr TTrraannssmmiissssiioonn SSyysstteemm EExxppaannssiioonn PPllaannss

3.1 Introduction 3.2 Details of Existing WTS 3.3 Pressure Zones 3.4 Running WTS Development Projects 3.5 Water Balance Result 3.6 Hydraulic Analysis 3.7 Risk Analysis 3.8 Transco Expansion Plans 3.9 Deviations in the strategic plans – (2008-2013) versus (2007-2012) Planning Statement 3.10 Water Balance Model-Schematics

CCHHAAPPTTEERR 44 SSttrraatteeggiicc PPllaannss AAnndd BBuussiinneessss OOppppoorrttuunniittiieess

4.1 Introduction 4.2 Systems Topology (2008-2013) - Narrative 4.3 Systems Topology (2008-2013) – Schematic Diagram

AANNNNEEXXUURREE

A. Executive Summary – Comprehensive Analysis of Abu Dhabi Water Transmission Network (Vol. 1, 2 & 3)

B. Volume 1 – Comprehensive Analysis of Abu Dhabi Water Transmission Network -

Water Balance Analysis


C. Volume 2 – Comprehensive Analysis of Abu

Dhabi Water Transmission Network - Hydraulic & Risk Analysis

D. Volume 3 – Water Transmission Data & Drawings A Drawings (Water Transmission Network

Topology (2008-2013) B Tables C Water System Data and Capabilities D Overall Water Balance Analysis

Recommended Scenario E Water Balance Analysis – Existing Scenario F Water Balance Analysis – Scenario with

addition of IWPP’s.


Introduction

Abu Dhabi Transmission & Dispatch Company (Transco) as per condition 15 of Transmission

License issues the 5 Year Planning Statement (Transco 5YPS) annually to inform the Users of the

system of its expansion plans and development strategies covering a period of five years into

future (eg 2009-2013 in this case) to enable them to identify & evaluate the opportunities

available when planning to connect to make use of the system.

The first, second, third, fourth, fifth, six and seventh issues of the Transco 5YPS were released in

July 2001, September 2002, October 2003, October 2004, July 2005, June 2006 and July 2007.

This issue (2009-2013) is updated based on the latest ADWEC’s Demand Forecast & Generation

Expansion Planning as well as incorporating all the comments for the previous issue (2008-2012)

received from the Bureau and other Users and major developments that has major impact in the

transmission system expansion strategies.

TRANSCO 5YPS shall be circulated to all Abu Dhabi Water & Electricity Authority Companies

and shall also be made available to any person requesting a copy of it..

Transco 5YPS for Water Transmission Network consists of technical information related to the

following topics:

Water Demand Forecast & Production Expansion Plan for the coming five years.

Water Transmission System Planning Processes & Criteria

Transco existing Water Transmission Systems and its planned System Expansion for the

coming 5 Years.

Business Opportunities for End Users

We are grateful to the Regulation & Supervision Bureau for their guidance in the development of

this document.

We hope you will find this Transco 5 YPS for 2009-2013 interesting and informative.


Executive Summary CHAPTER 1: WATER DEMAND FORECAST & PRODUCTION EXPANSION PLAN

Chapter-1 includes summary of ADWEC’s Demand Forecast and Production Expansion Plan for the planning period 2009-2013.

Transco has assessed the water demand forecast study by ADWEC (Reference Vol. 1 of “Comprehensive Water Analysis of Abu Dhabi Water Transmission Network Report” attached to this 5 Year Planning Statement) in order to have an accurate demand data and in usable format to facilitate computerized hydraulic analysis of the Transmission Network. The demand forecast includes all the major developments in Al Reem, Al Sowa, Sadiyat, Lulu Island, Al Yas Island, Capital District, Shamka, Mina, ICAD & Al Raha Beach/Al Raha Gardens, Airport expansion, etc.

Though the focus of this report is the next 5Y planning period, the network planning is extended up to year 2020 to ensure adequate transmission capacity and proper service corridors are determined & allocated for the required transmission expansion.

Within this chapter a yearly global Water Balance Analysis is carried out using ADWEC’s Demand Forecast and Production Expansion Plan to determine the water surplus/deficit in each Pressure Zone as summarized in the table below.

Table 3.20: Global Water Balance of Abu Dhabi Emirates 2008-2013 with Northern Emirates.

Overall Surplus / Shortfall Details (MGD)

Zone 1 (Abu Dhabi Island)

Zone 2 (Abu Dhabi Mainland)

Zone 3 (Western Region + Part of

Mainland) Zone 4 (Al Ain Region +

Others)

Year

Tota

l Sup

ply

(MIG

D)

Tota

l Dem

and

(MIG

D) I

nclu

ding

N

E

Ove

rall

Surp

lus

/ Sho

rtfa

ll

DEM

AN

D

Surp

lus/

Sh

ortfa

ll

DEM

AN

D

Surp

lus/

Sh

ortfa

ll

DEM

AN

D

Surp

lus/

Sh

ortfa

ll

DEM

AN

D

NO

RTH

ERN

EM

IRA

TES

DEM

AN

D

Surp

lus/

Sh

ortfa

ll

2008 651 711 -60 112.89 9.13 162.99 4.60 167.59 3.60 247.67 20.00 -75.78

2009 685 774 -89 116.04 0.00 176.94 17.21 182.70 0.00 267.52 30.50 -106.21

2010 817 843 -26 122.02 0.00 185.94 0.00 202.41 -4.07 287.20 45.50 -22.30

2011 868 900 -32 130.25 0.00 200.10 0.00 222.97 -2.56 301.02 45.50 -29.28

2012 969 952 17 134.97 0.00 210.39 0.00 246.22 17.02 314.60 45.50 0.00

2013 969 1000 -31 140.41 -18.12 220.36 0.00 265.72 0.00 328.37 45.50 -13.55

* Source: ADWEC 2008 Unpatterned Water Demand Forecast for TRANSCO System Expansion. ** Source: TRANSCO Report -Comprehensive Analysis of the Abu Dhabi Water Transmission Network (Volume 1).


Table 3.30: Global Water Balance of Abu Dhabi Emirates 2008-2013 without Northern Emirates.






Others)

Year

Tota

l Sup

ply

(MIG

D)

Tota

l Dem

and

(MIG

D)

Excu

ding

NE

Ove

rall

Surp

lus

/ Sh

ortfa

ll

DEM

AN

D

Surp

lus/

Sh

ortfa

ll

DEM

AN

D

Surp

lus/

Sh

ortfa

ll

DEM

AN

D

Surp

lus/

Sh

ortfa

ll

DEM

AN

D

NO

RTH

ERN

EM

IRA

TES

DEM

AN

D

Surp

lus/

Sh

ortfa

ll

2008 651 691 -40 112.89 9.13 162.99 4.60 167.59 3.60 247.67 -55.78 2009 685 743 -58 116.04 0.00 176.94 17.21 182.70 0.00 267.52 -75.71 2010 817 798 19 122.02 0.00 185.94 0.00 202.41 -4.07 287.20 23.20 2011 868 854 14 130.25 0.00 200.10 0.00 222.97 -2.86 301.02 16.22 2012 969 906 63 134.97 0.00 210.39 0.00 246.22 17.02 314.60 45.50 2013 969 955 14 140.41 0.00 220.36 0.00 265.72 13.83 328.37 0.00


CHAPTER 2: WATER TRANSMISSION SYSTEM PLANNING

Water Transmission System Planning Process: A schematic process diagram is included in Annexure – Volume 3, Section G which shows the steps followed during planning and the sources of input data together with the tools used for planning.

Water Transmission planning criteria: All planning criteria embodied in the Water Transmission Code and Security Standards are highlighted in this chapter. Those criteria include storage sizing, configuration of stand-by pumps, pipeline sizing and other criteria. The Water Security Standard requires analysis of the network using probabilistic-based risk analysis and selection of risk mitigation options using WLCC technique.

CHAPTER 3: WATER TRANSMISSION SYSTEM EXPANSION PLANS

Transco Water Transmission system is undergoing major expansion activities to meet both the forecasted demands and the planned additional production capacity from the existing, under construction and future desalination plants.

For the current 5 Year Planning Statement (2009-2013), ADWEC’s Generation Expansion Plan is utilized to balance the Network.

All reinforcements required in the Water Transmission Network for implementation during 2008-2013 period are enumerated herein and shown in Drawings No. 5 and 6 (Volume 3) that illustrates the backbone of the Water Transmission System by year 2008-2013, expanding from Western Region to Abu Dhabi Region and Al Ain Region, Fujeirah and Ras Al Khaimah, with Fujeirah (UWEC) Phase 2, Shuweihat Phase 2 and Shuweihat Phase 3 in service by 2010, 2011 and 2012 respectively.


Drawings No. 3 and 4 (Volume 3) shows Transco’s on-going and future expansion plan up to year 2020.

The new Water Security Standard along with the planning and design criteria specified in the Water Transmission Code was adopted in the course of studying the requirements for storage, pumping units and pipeline capacities.

Further, the major deviations in the strategic plans for the development of water transmission system adopted in this 8th Five Year Water Planning Statement compared to the 6th & 7th Five Year Planning Statement are highlighted within this Chapter.

CHAPTER 4: STRATEGIC PLANS & BUSINESS OPPORTUNITIES

As a result of the recent In-house Study (Comprehensive Analysis of Abu Dhabi Water Transmission Network -2008-2020) carried out by TRANSCO - Water Network Development Department, the following reinforcements in the Water Transmission Network are recommended for implementation:

A. Proposed Projects (Year of Commissioning).

• Commissioning of Shuweihat Phase 3 - 100.00 MIGD (2012), the following are the Major system requirements:

1. New additional Reservoirs at Shuweihat – 100.00 MIG. (To be implemented by the new IWPP). 2. New pumping station with a capacity of 115.0 MIGD at Shuweihat P&DP. 3. Construction of 1x1600mm CS from Shuweihat New PS up to Mussafah and

Unit IV Pumping Stations for a Total length of 241.0 km. Provisions for a tap off connection to Mirfa IPS PS (SWTS).

4. Surge analysis/Vessels, civil works, instrumentation, control & automation and associated electro-mechanical works

Note: Initial concept scheme reveals a one-shot pumping from Shuweihat to Mussafah, Unit IV and Unit V is possible to evacuate the Shuweihat Phase 3 production.

• Unit III Distribution Network (2011)

1. New 45.0 Kms. of 1x1200 mm reinforcement line from Unit III to UAN junction parallel to existing DN1000 line and forming a loop along the Abu Dhabi-Airport Road (Between Khalifa B And C) towards Unit III PS.

2. New 42.00 MGD Capacity Pumping Station for Mega Projects (Initially) with provisions for future extension.

3. New Reservoirs at Unit III Pumping Station – 30 MG

• Ajban Pumping Station (2009) 1. New Reservoirs at Ajban Pumping Station – 10 MG.

• Mirfa to Muzairah Transmission Upgrade (2010-2012)

1. Madinat Zayed (2010)


• Additional 6.0 MGD pump group at year 2010 to supply Summit Reservoir.

• New 45.00 Km of 1x900 mm transmission line up to Summit Reservoir and 15.0 km from Summit to Muzairah PS to replace the GRP Lines.

2. Summit Tank Farm (2010) • New Reservoirs – 4.0 MIG for local distribution.

3. Muzairah Tank Farm (2010) • Additional 6.0 MGD pump group to supply Liwa East. • New 1x600 mm transmission line up to Interface point supplying Liwa

East (Based on ADDC proposed new Pipeline). • Additional New Reservoirs – 10.0 MIG.

4. IPS-1 (2010) • Proposed 1.5 MG tank at IPS-1 (2010). • Additional 8.3 MGD new pump similar to existing pump group.

5. IPS-2 (2013) • Proposed 13.50 MG tank at IPS-2 for Habshan (2013).

• Contract N-6137 “Al Wathba to Al Ain Water Transmission System (2011) The proposed project will provide the needed water supply to Al Ain Region from Shuweihat utilizing the existing DN1x1600 pipeline from Mirfa via Mussafah to Unit IV PS. The scope of the project includes the following:

1. 40.00 MIG Storage tanks @ Unit V Pump Station 2. 82.10 MGD Pump Station at Unit V tank farm. 3. 125.00 Kms of DN 1 x 1600 pipeline from Unit V Pump Station to Al Ain

Reception. 4. 12.0 km x DN1600 DI Pipeline from upstream of Unit IV PS to new Unit V

PS. 5. 4.0 km x DN800 DI Pipeline from the existing DN 800 Pipeline of Al Wathba

Palace to Unit IV until Unit V. 6. 28.00 Kms of twin DN1600 pipeline from Tap-off 12 -FWTS to Al Ain

Reception (ARRC). 7. 75.00 MIG Capacity Storage tanks @ Al Ain Reception

• Al Ain Water Distribution Network (2011)

AAR Pump Group 1 (PS-1)

1. 28.00 Kms of twin DN1600 pipeline from Tap-off 12 -FWTS to Al Ain Reception (ARRC).

2. Pumping Station with a capacity of 81.43 MGD at AARC to supply the distribution area of Al Maquam PS, Zakher PS, Al Wagan, Jabel Hafeet and GIC.

3. 22.00 Kms of DN 1 x 1600 pipeline from Al Ain Reception to Zakher Area. 4. 3.50 Kms of DN 1 x 1200 pipeline from Zakher Area to the connection point

supplying Jabel Hafeet. 5. 5.70 Kms of DN 1 x 1000 pipeline from Jabel Hafeet Connection Point to the

proposed Al Wagan Terminal Station.


6. 2.90 Kms of DN 1 x 700 pipeline from Al Wagan Terminal Station to GIC Area.

7. 5.40 Kms of DN 1 x 1000 supply line to Al Maquam Palace, Shuaiba farms and Zakher.

8. 3.80 Kms of DN 1 x 400 supply line to Jabel Hafeet.

AAR Pump Group 1 (PS-2)

1. Pumping station with a capacity of 101.00 MGD at ARRC to supply Power House, Zoo, Sanaiya, Al Natlah, Sarouj, Military, Dhaher, Mezyad and Umn Ghaffa.

2. 13.10 Kms of DN 1 x 1600 pipeline from Al Ain Reception up to Power House (TO-9A pipeline) area.

3. 17.00 Kms of DN 1 x 1600 pipeline from Mezyad Area to Umn Ghaffa area. 4. 50.00 MIG capacity Storage tanks @ Umn Ghaffa Area.

• Mussafah Pumping Station Distribution Network (2011)

1. New 1x1200 mm connection for the ICAD Project from the Proposed pumping station up to the proposed Connection and Interface point.

2. New 45.00 MGD Capacity Pumping Station for ICAD Mega Projects (Initially) with provisions for future extension.

3. New Reservoirs at Mussafah Pumping Station – 30 MG.

• Taweelah Pumping Station (2013) 1. New 1x1200mm Pipeline Connection for KPIZ New development from the

Taweelah Common Discharge Header with the Interface after the Pump Station.

• Fujairah Local Distribution Supply from the Fujairah Power and Desalination Plant (Zone 1- Sudah Area, Zone 2 - Fujairah City, Zone 3 - Al Hayle Industrial areas and Free Zone)

A. Phase 1 (2011)

1. Installation of Transmission lines: • 1xDN 900 from Qidfa PS up to the last Bulk Consumer of Zone 1 (10.70 km) • 1x DN 800 from the last Bulk Consumer of Zone 1up to Zone 3 proposed

Tank (22.8 Km). • 1x900 mm Pipeline from Qidfa to 2x600mm & 1x400mm ACP • Installation of Supply Lines to the Storage Tanks at Zone 3 (Al Hayle

Industrial Areas) with 800mm (1.0 km). 2. Construction of Steel Storage tanks for each Zone: • Zone 2 (Fujairah City & Environs), By FEWA • Zone 3 (Al Hayle Industrial Areas) , 2x5.0 MIG 3. Pumping Stations • Construction of a Pumping station at Qidfa PS with a capacity of 20.0 MGD

for the supply to Zones 1 and 3. • Construction of a Pumping station at Qidfa PS with an Initial capacity of 15.0

MGD for the supply to Zones 2 and the consumers between Qidfa and Fujairah City.


B. Phase 2 (2015)

1. Installation of Transmission lines: • 1x600 mm Pipeline from the interconnection points of the proposed

1x900mm with the 2x600 & 1x400mm ACP (22.5 km 2. Construction of Steel Storage tanks for each Zone: • Zone 3 (Al Hayle Industrial Areas), 1x5.0 MIG 3. Pumping Stations • Installation of additional 4.0 MIGD pumping Capacity for the supply to

Zones 1 & 3 • Installation of additional 9.0 MIGD pumping Capacity for the supply to

Zones 2 and the consumers between Qidfa and Fujairah City.

B. To meet the increased in Demand in all the four (4) Pressure Zones.

B.1 Projects Under Design, Tendering • N-4268 - Water Transmission Scheme from Mussafah to Abu Dhabi Island

(2010). • N2861 – Umm Al Nar “B” Pumping Station Extension (2010). • N6045- Upgrading of Shuweihat Water Transmission System (Nov. 2010): Project

initiated as a result of commissioning of Shuweihat Phase 2 - 100.00 MIGD (2011).

• N6137 Al Wathba to Al Ain Water Transmission System: (replacement to N3131) – Mussafah Water Transmission Scheme Upstream Unit 4 to Unit 5 to AASW to Umm Ghaffa (2010)

• N-6740 Water Transmission Lines Inside Al Sowa Island – Lot B: (2010) • N- 6139 Al Ain Water Distribution Network (2011). • Water Supply Scheme from Al Hinya to Al Hamra Area (Ras Al Khaimah) (2010)

B.2 Under Construction

• N-4277 - Water Transmission Scheme from Taweelah to Unit III and from Unit III to Abu Dhabi Island (2008) – Works completed and system in operation, works related to DN1200 to Yas Island in progress and scheduled to be completed by Dec. 2008.

• N3232 – Urgent Works – AARS, Sarouj, Khabisi & Hilli (2008). • N2860-1 – Shobaishi and Rehmah Pumping Station Upgrades (2009). • N5807-Water Transmission Scheme-1 x DN1600 from Umm Al Nar Junction to

Sadiyat Island, Mina & Al Reem Island (2009). • N4381 - Water Transmission Scheme from Tap off 9A (UWEC) to Al Hayer up to

Valve House (2010). • DN4604 – DN1000 Pipeline from Sweihan to Rehma (2008). • N2622 – Water Supply to Sadiyat Island (2009). • N4383 – Network Development in Abu Dhabi Island (2010).


• N5386 – 1 X DN1200 Pipeline inside Al Reem Island (2009). • N3850 – Water Transmission System from Mirfa to Madinat Zayed (2009). • N4927 – Construction of New 200mm PN160 Bar Carbon Steel pipeline to Jabel

Hafeet Summit Reservoir from Base Pumping Station (2009). • N3909-1 – Upgrade of Pumping Equipment in Different Pumping Stations in Al

Ain (2009). • N5219 – Fujairah Phase 2 Water Transmission Scheme (2010) :

1. New additional Reservoirs at Fujairah (Qidfa) – 80.00 MIG. (To be implemented by the new IWPP). The balance of 50 MIGD will be executed in AARC under Project N4381 due to limitation of space at Qidfa.

2. Replacement of Impellers of existing Pumps (4 Nos.) and additional 5 new Pumps to have a total capacity of 230.00 MGD (8+1 configuration) Pumping Station at Fujairah (Qidfa).

3. New 1x1600 mm CS Pipeline from Fujairah (Qidfa) to Summit Reservoir with a total length of 37.80 kms.

4. Additional new tank of capacity 5.00 MIG at Summit Reservoir. 5. New 1x1600 mm CS Pipeline from Summit Reservoir to Tap Off 9A Approximately 91.95 Kms.


1.1 Introduction In accordance with the Water Transmission Code, ADWEC is designated to prepare and submit to TRANSCO and all Users a coordinated long term demand forecast, therefore the data provided by ADWEC shall be utilized by TRANSCO for its planning purposes. As per Article 30 of Law No. 2 “it is the duty of ADWEC to ensure that there is provided sufficient production capacity to ensure that, at all times, all reasonable demands for water and electricity in the Emirate are satisfied” Article 32 of the Law No. 2 requires ADWEC to determine annually in respect of each year and the next five years, the requirement for the provision of:

1. New or additional capacity for water desalination 2. New or additional electricity generation capacity 3. New additional water storage capacity

In order to meet the above legal requirements ADWEC prepares the followings annually:

1. A long Term Electricity & water demand Forecast 2. A Statement of Future Capacity Requirements

Water demand forecast & production expansion plan are the starting point for water supply network planning which includes analyzing the capability of existing network and designing a new system development schemes. 1.2 Water Demand Forecast Water demand forecast is an exercise being done on a yearly basis. Due to many factors, water demand is growing in the Emirate of Abu Dhabi. The following represents the demand forecast carried out by different parties and the view of TRANSCO on those studies. 1.2.1 ADWEC Demand Forecast On 25th March 2008 vide ADWEC’s letter of Ref. ADWEC/DPSD/GroupLtr/00403.08, TRANSCO received the Winter 2007/2008 regional global water demand forecast update (2008-2030) from ADWEC including three scenarios; Low, Most likely, and High as shown in Figure 1.1. In as much as the global forecast cannot be utilized by TRANSCO for planning the present and future developments of the transmission system, a detailed breakdown was consequently requested. TRANSCO received the suitable planning breakdown on 10th June 2008 vide ADWEC’s letter of Ref. ADWEC/PSD-MD/Transco/134/6.08. The submitted demand covers the future needs for the Abu Dhabi Emirate including all the major developments in Al Reem, Al Sowa, Sadiyat, Al Yas, Lulu, Shamka, Mina, ICAD & Al Raha Beach/Al Raha Gardens and other developments as well as Northern Emirates. Figure 1.1 (shown below) illustrates ADWEC’s demand forecast for water for the planning period 2008- 2013.


0

200

400

600

800

1000

MG

D

2008 2009 2010 2011 2012 2013

Year

Low Scenario Average Scenario High Scenario

Fig 1.1: Summary of ADWEC Water Demand Forecast. Source: ADWEC

1.2.2 TRANSCO Assessment Transco has assessed the water demand forecast study by ADWEC (Reference Vol. 1 of “Comprehensive Water Analysis of Abu Dhabi Water Transmission Network Report” attached to this 5 Year Planning Statement) in order to have accurate and practicable demand forecast that is required for planning a water supply network, whether it is designing a new scheme or analyzing the capability of existing network 1.3 Generation Expansion Planning The Generation and Desalination Plants expansions in relation to the location and capacity requirement are determined by the Privatization Directorate-ADWEA & ADWEC. The generation planning coordination activities are well established between ADWEC, TRANSCO and Privatization Directorate. ADWEC conducts the future demand forecasting for power and water and translate these requirements to generation expansion plans. TRANSCO on the other end reviews the expansion plans and assesses the power and water transmission system capabilities and plan for transmissions facilities to cater the addition or deletion of power and water capacity at the respective sites. In August 2008, TRANSCO received ADWEC’s updated statement of future capacity requirement (2008-2030). The following are the confirmed production plans: 1.3.1 Retirement Plans Abu Dhabi Power Station (ADPS): All desalination Plants with a total capacity of 15 MIGD was decommissioned starting January 1st 2008. Umm Al Nar IWPP: The following UAN IWPP capacities, which were originally scheduled to be retired in June 2008, have had their retirement deferred until after the 2010 peak:


UAN East B – 20.00 MIGD UAN West 1-6 – 24.00 MIGD UAN West 7-8 – 6.00 MIGD

1.3.2 New Committed Capacities Taweelah B New: The plant has a net water production capacity of 69 MIGD. The plant is scheduled to be on service by the year 2008. But, based on ADWEC’s latest plan about 35.0 MIGD was commissioned by 2008 and the rest by 2009. Fujairah F2 IWPP: The Fujairah F2 IWPP will have net water production of 130 MIGD leading to total Fujairah plant production of 230 MIGD. This is a committed capacity and planned to be available by the year 2010. It is anticipated that some of this capacity will be dedicated to Northern Emirates. Shuweihat S2 IWPP: In April 2007 Abu Dhabi’s Executive Council authorized ADWEA to proceed with the construction of Shuweihat S2 IWPP with net water production capacity of 100 MIGD. The plant is planned to be fully available in time for the 2011 peak. Shuweihat S3 IWPP: As per ADWEC’s recommendation in their Aug 2008 approved RSB statement, ADWEA to proceed with the expansion of Shuweihat S3 IWPP with an additional production capacity of 100 MIGD. The plant is planned to be fully available in time for the 2012 peak. The existing, under construction, committed and planned water production capacities, as per ADWEC production plan, are shown in the table below: Table 1.10: ADWEC Production Plans

Plant 2008 2009 2010 2011 2012 2013

ADPS 0 0 0 0 0 0

Total BPC 0 0 0 0 0 0

UAN-E-A 19.2 MIGD- Already Decommissioned

UAN-E-B 20 20 20

UAN-W- 1-6 24 24 24

UAN-W- 7-8 6 6 6

UAN-W-9-10 7 MIGD- consolidated with UAN-B

UAN-B 95 95 95 95 95 95

Total APC 145 145 145 95 95 95

AMPC 39 39 39 39 39 39

Taweelah B1 70 70 70 70 70 70

Taweelah B2 23 23 23 23 23 23


Plant 2008 2009 2010 2011 2012 2013

Taweelah B new 35 69 69 69 69 69

Total TAPCO 128 162 162 162 162 162

GTTPC 85 85 85 85 85 85

ECPC 51 51 51 51 51 51

Total of TAW 264 298 298 298 298 298

SCIPCO 101 101 101 101 101 101

New IWPP-1 S2 101 101 101

New IWPP-1 S3 101 101

Total 101 101 101 202 303 303

UWEC 102 102 102 102 102 102

New IWPP-2 F2 132 132 132 132

Total 102 102 234 234 234 234

TOTAL Production Capacity 651 685 817 868 969 969

Northern Emirates Demand 20 20 30 30 30 30

Available Water for ADWEA 631 665 787 838 939 939

1.4 Global water balance Based on the ADWEC demand forecast and production expansion plan in items 1.2 and 1.3 above respectively, global water balance was prepared to identify surplus/deficit yearly. The surplus/deficit is calculated using the most likely demand forecast, available production capacity (as per production expansion plan), and the required capacity which determined applying 5% reserve capacity requirements (adding 5% to the demand forecast) The following chart summarizes the water surplus/deficit for 2008-2013 under the Most-Likely Water demand Forecast.


-200

0

200

400

600

800

1000

1200

Available Water(MGD) 651 685 817 868 969 969

Dem and Forecas t(MGD) 711 774 843 900 952 1000

Required Capacity(MGD) 748 815 887 947 1002 1053

Surplus /Deficit with 5% -97 -130 -70 -79 -33 -84

Surplus /Deficit without 5% -60 -89 -26 -32 17 -31

2008 2009 2010 2011 2012 2013

Figure 1.2 Water Demand including Northern Emirates and Supply Analysis (2008-2013)

using ADWEC Demand Forecast Surplus/Deficit analysis From the outcome of the above global water balance analysis the followings can be can be concluded:

1. For the years 2008 and 2009, the global balance shows a shortfall of 60.00 to 89.00 MIGD. Al Ain Region will suffer from water shortage in the range of 75.00-106 MIGD due to Transmission system constraint to Al Ain region.

2. For years 2010 & 2011 even with the introduction of Fujairah and Shuweihat Phase 2, globally there will still be a shortfall of 26.00 to 32.00 MIGD which is concentrated in Western and Al Ain region. This is mainly attributed to the total requirement of Northern Emirates of which is 45.50 MIGD.

3. In 2012, there will be a Surplus of 17.00MIGD with the introduction of Shuweihat Phase 3.

4. By 2013, a shortfall of 31.00 MIGD will develop and again it will be felt on Al Ain Region. This shortfall can be transferred to Western region by allowing more flows to Al Ain via the proposed Al Wathba to AAR transmission line.

5. Beyond 2013 till 2020, an additional production capacity of 291.00 MGD will be required to balance the overall requirements of the emirates.

From the above analysis, which is based on ADWEC demand forecast and production plan, starting from year 2013 new water production plant is required to cater the projected demand forecast.


2.1 Introduction Water transmission System planning activities is within the role of Water Network Development Department (WNDD), which is under Asset Management Directorate of TRANSCO. 2.2 Water Transmission System Planning Process The overall water transmission system planning processes is shown below and attached in the Annexure - Volume 3, Section G.

Fig 2.10: WATER NETWORK PLANNING PROCESS DIAGRAM

Assessments of Water Demand Data & Production Expansion Plan

DISCO •Data from Town Planning •Municipalities •Private Departments •Developers/Consultants

ADWEC •Final Demand Forecast •7 Year Planning Statement Including Production Capacity Plan

Demand Forecast & Production Plan

PRODUCERS •Production Capacity •Outages Plan

Preparation of TRANSCO 5 YPS

Network Risk and Cost Analysis

Water Balance & Hydraulic Analysis of the Transmission System

RSB Review & Approval

Yes Review & Update the 5

YPS

No

B

Proposals from other TRANSCO Dept. / Divisions

A Network Analysis Report,

Feasibility/Concept Studies, Master Plan Report, Recommendations &

Proposals, etc.

Process for Network Risk Analysis

(See Figure 2.20)

Distribution to ADWEA, DISCO, ADWEC, RSB, CONSULTANTS, etc.

Yes

FCRP Review & Approval (Stage 1)

Yes

Review & Update Budget Submittal / Coordinate with other TRANSCO Dept. / Div.

No

Projects Division • Hand-over Project • Technical Assistance during

the detailed design, tendering and construction Phase & Review of V.O.

FCRP Review & Approval (Stage 2)

Project Put On-Hold

ADWEA Submission for

Budget Allocation

Approved

NOT Approved

Guidelines & Design Criteria

License, WTC, Security Standards, MDEC, etc.

Asset Info & Standards Department / WTS

Network data, demands, supplies, capacities, etc

NOT Approved

Prepare Annual Capital Project Budget


Figure 2.20: Process for Network Risk and Cost Analysis 2.3 Transmission System Planning Criteria Transco shall apply the License Standards, which are set out or referred to Condition (18) of the Transmission License relevant to planning and development of the water trunk main system. The criteria, guidelines and procedures to be applied by Transco for planning and development are specified in the Water Security Standard, as well as in the Water Transmission Code.

No

Asset Performance Dept.

R i ti d t

Identify critical parts of network

Complete schematic ofcritical area

Assess probability of failure

Assess consequence offailure

Analyse risks (Probability x consequence)

Compare with levels of service

Define schemes to mitigate risks

Carryout Economic analysis

Prepare Security Plan

No plan Required

Yes

Asset Performance Dept.

Asset failure data for

For each component assess: •Impact of storage •Consequences to customer

Carry out periodic review of Security

Plan

Asset Performance Dept. For each component assess:

•Loss of supply •Frequency & duration of loss

B

A

LoS met?


The following planning/design criteria were adopted in the Network Capacity planning covering the requirements for storage, pumping and pipeline capacities. These criteria have been reviewed and updated by Water Transmission Code Panel as an amendment to the existing code (version 2). These amendments had been approved by the RSB and have been incorporated in the latest released Version of the WTC (version 3), June 2007. 2.3.1 Storage Capacity

I- Reservoirs at water Production Plants The total storage of the production reserve shall provide 24 hours of water supply at the rated design output of the Water Production Plant. A minimum of two storage tanks or one tank with minimum of two sections or more that can be isolated shall be provided, and the volume of storage so calculated shall be usable and exclusive of any unusable top and bottom storage. II- Reservoirs at Intermediate and Terminal Pumping Stations Intermediate pumping stations shall be provided with water storage equivalent to 10% of the average daily transfer and 100% of the daily demand of the distribution system; Terminal pumping stations shall be provided with water storage equivalent to 24 hours’ supply at the average daily demand of the distribution system; All water storage facilities should have a minimum of two tanks, or one storage tank with minimum of two section or more that can be isolated, at each location; and the volume of storage so calculated shall be usable and exclusive of any unusable top or bottom water storage Items (I) and (II) are guideline figures only and TRANSCO shall undertake risk analyses in accordance with the guidelines given in the Security Standard to determine whether the departure from those given guidelines is required. 2.3.2 Criteria for Standby Pumps

All Pumps (variable or fixed speed) must be capable of supplying the output required by the Despatch process at a continuous rate against the head specified in the Connection Agreement. To maintain supplies in case of pump fails or routine maintenance requires to be undertaken, 30% to 40% standby capacity, (depending on the sequence of failure), to be provided at Pumping stations. The number of standby pumps required to meet these criteria is given in the following table:

Number of Duty Pumps

Number of Standby Pumps (33%)-normal

Number of Standby Pumps (40%)-critical

1 1 2

2 1 2

3 1 2

4 2 2


5 2 2

6 2 3

7 3 3

8 3 4

The criteria in the Table above are for guidance only. TRANSCO shall undertake risk analyses, in accordance with the guidelines given in the Security Standard, to justify the level of standby pump facilities in specific circumstances. 2.3.3 Pipeline Facilities

When planning a pipeline project, the planning period is decided and accordingly the demand projection that the subject pipeline will handle. The most techno-economical size of the pipeline shall be determined taking into consideration the pipeline costs, energy costs for pumping and the maximum flow velocity within which the pipeline can run safely without reducing the effective life time of the pipe due to erosion which can be a result of velocities exceeding the maximum specified velocity by the WTC. However, the limitation imposed by the available service corridor greatly affects the ultimate sizing of Transmission Pipeline. Where future addition of pipeline reinforcement within the same service corridor is not feasible or extremely difficult, the pipeline capacity planning shall be based on the maximum demand of the area for the planning period. As per WTC requirements, Transmission pipelines shall be designed not to exceed maximum velocities of 3.0 m/s. Transco shall undertake technical evaluation to determine the appropriate design velocity for individual circumstance. Slightly higher velocities can be tolerated in emergencies, but only for short periods. The minimum velocities should not fall below 0.3 m/s to ensure that the age of the water does not become excessive and that loose deposits in the main are not allowed to settle. For the purpose of analyzing the capabilities of the existing pipelines within Transco water trunk main system, the design capacity as per hydraulic analysis of that specific water transmission scheme has been considered. 2.3.4 Stand-by Generators

Standby generators (either fixed or mobile) shall be provided at sites where no alternative power supply is available (for example, through dual feeds) and where a risk assessment, as per the Security Standard, has shown that service to customers is compromised. 2.3.5 Network Risk Analysis

Transco since 2006 has carried out network risk analysis of the entire Abu Dhabi Water Transmission Network in accordance with the guidelines set out in the Security Standard to


determine whether the risk of interruption to supply to customers are acceptable in accordance with the Standard defined by the figure below, which is part of Security Standard. Figure 2.30: Risk Analysis Graph (Level Of Service)

0.01

0.1

1

10

100

1 10 100Cumulative Duration of Interruption (hours)

Ret

urn

Per

iod

(Yrs

)

Target Trigger

Desirable

Acceptable

Unacceptable

Investment

2.3.6 Hydraulic Modeling

The calibrated network models to be used for water transmission planning shall include all pipes, pumps and reservoirs in operation. The models shall be constructed, calibrated and updated in accordance with international best practice. The procedures used for model construction and field-testing and the criteria applied for determining the adequacy of model calibration shall be in accordance with the Water Research Centre, (WRc), Code of Practice for Network Modelling, or similar Bureau approved standard. Transco now uses InfoWater software for system Hydraulic Modelling. Calibration of the model is in progress which is under Project N4650 “Consultancy Services for Calibration of Water Transmission Hydraulic Model and Implementation of Water Security Standard”. The project is scheduled to be completed by end of October 2007. 2.3.7 Whole-life Cycle Costs (WLCC)

In considering alternative investment option for network and storage planning, Transco carried out WLCC for all Scenarios & Options considered within the planning period to ensure that its preferred option is the most techno-economic option.. In particular, whole-life costs analysis shall be used to:

i. Determine planning horizons and the appropriate phasing of development, taking account of growth in demand and changing operating conditions;


ii. Size new transmission mains in conjunction with their associated pumping stations to determine the most economical sizes.

iii. Transco shall use the discount interest rate stipulated by the Bureau for whole-life costing.


3.1 Introduction The Water Transmission System is planned to meet the system demand forecast for the planning horizon and complying with planning and security criteria. These plans should be consistent with the long-term growth plans and aligned with generation expansion plan identified by ADWEC. TRANCO is developing the Water Transmission System by constructing major new water trunk mains, pumping stations & reservoirs. Following the planning process depicted in Chapter-2, a detailed in-house study of the Water Transmission Network was carried out to determine the required Water Transmission Network developments. The study is driven by the ADWEC demand forecast and production expansion plan, together with Transco’s Production Expansion Plan scenarios beyond year 2013 which is discuss in detailed in Volume 1 of the Annexure and guided by the planning criteria discussed in Chapter-2 of this statement. The above study composed of the following volumes:

1. Volume-1: Water Balance Analysis of Abu Dhabi Water Transmission Network 2. Volume-2:Hydraulic and Risk Analysis of Abu Dhabi Water Transmission Network 3. Volume-3: Water Transmission Data, Tables and Drawings.

3.2 Details of Existing Water Transmission System The Geographical Map as well as the schematic of the overall existing Water Transmission System as of 2008 is enclosed in Annexure, Volume 3 – Appendix A. Detailed data of Water Transmission System as of 2008 is included in Annexure, Volume 3 – Appendix C 3.3 Pressure Zones As part of the above study, the Abu Dhabi Water Transmission Network is divided into Four Pressure Zones defining the areas served by particular Desalination Plants and Pumping Stations. The four Zones are shown on Figure No. 1 and enumerated as follows:

1. Pressure Zone 1 - Abu Dhabi Island supplied by UM Al Nar and ADPS (with ADPS scheduled decommissioning by end of 2007)

2. Pressure Zone 2 – All areas supplied by Taweelah Desalination Plants extending to Unit 3 and Ajban Pumping Station + Areas towards Abu Dhabi-Dubai Border

3. Pressure Zone 3 – All Areas from Sila to Mussafah + Unit 4 and Shobaishi Pumping Station supplied by Shuweihat and Mirfa Desalination Plants

4. Pressure Zone 4 – Al Ain Region which can be supplied from three sources, namely; from Shuweihat P&DP (after completion of contract N6137 in 2011) or Taweelah/UAN P&DP or Fujeirah (UWEC) P&DP or combination of the three.


[_

[_

[_[_

[_

[_

[_

[_

[_

[_

[_

[_

[_

[_

[_

[_

[_

[_

[_[_

Abu Dhabi

Dubai

Sharjah

Fujairah

Ras Al Khaimah

Ras Al Khaimah

Umm Al Quwain

DELMA IS.

PRESSURE ZONE 3

SHUWEIHAT PDP

SIR BANIYAS IS.

JEBEL DHANA


(MIRFA)

WESTERN REGION

IPS 1IPS 2

MADINAT ZAYED PS

SUMMIT RES

MUZAIRA PS

ABU DHABI EMIRATES

CENTRAL REGION


UNIT II

SHOBAISHI PS

AJBAN PS

SWEIHAN PS

ADPS

TAW PDP

MUSSAFAH PS

EASTERN REGION

PRESSURE ZONE 1

PRESSURE ZONE 2

AAR PS

KHABISI PS

HILLI PS

SAROUJ PS

AL AIN REGION

PRESSURE ZONE 4

Al HAYER TANKS


SILA

UNIT VUNIT IV

UNIT IIIUAN PDP

[_

[_

[_[_

[_

[_

[_

[_

[_

[_

[_

[_

[_

[_

[_

[_

[_

[_

[_[_

Abu Dhabi

Dubai

Sharjah

Fujairah

Ras Al Khaimah

Ras Al Khaimah

Umm Al Quwain

DELMA IS.

PRESSURE ZONE 3

SHUWEIHAT PDP

SIR BANIYAS IS.

JEBEL DHANA


(MIRFA)

WESTERN REGION

IPS 1IPS 2

MADINAT ZAYED PS

SUMMIT RES

MUZAIRA PS

ABU DHABI EMIRATES

CENTRAL REGION


UNIT II

SHOBAISHI PS

AJBAN PS

SWEIHAN PS

ADPS

MIRFA PDP MUSSAFAH PS

EASTERN REGION

PRESSURE ZONE 1

PRESSURE ZONE 2

AL MAQUAM PS KHABISI PS

SAROUJ PS

AL AIN REGION

PRESSURE ZONE 4

Al HAYER TANKS


SILA

UNIT VUNIT IV

UNIT IIIUAN PDP

FUJAIRAH PDP

HILLI PSAAR PS

The creation of the above four pressure zones enables the study to clearly define the surplus or shortfall in water supply within the zones as well as to determine the most economical import-export route between zones. The four Pressure Zones used for planning is also compared to the Unit Commitment (15 Nos. UC) Zones being used by TRANSCO-LDC. It was noted that the 4 Pressure Zones coverage includes all the 15 Water Zones in the Unit Commitment. This is clearly shown in Drawing Nos. 7, 8 and 9 under Volume 3 – Water Transmission Data and Drawings. 3.4 Running Water Transmission System Development Projects The table below includes list of running projects for the Water Transmission System Development, summary (brief scope & schedule) of these projects is included in section 4.2.


Table 3.10: List of Running Projects for Water Transmission System Development.

Project Schedule Project Title No Start Duration Finish

Water Transmission Scheme from Taweelah to Unit III and from Unit III to Abu Dhabi Island N4277 Apr, 06 20M Dec.07

Upgrade of Shuweihat WTS N6045 Nov.08 24 Nov.10 Water Supply to Sadiyat Island N2622 22/7/07 18M 21/1/09 Network Development in Abu Dhabi Island N4383 20/1/08 24 M 19/1/10 DN1600 from SAS Al Nakheel (UAN) to Sadiyat Island N5807 20/1/08 24 M 19/7/09

DN1200 Line Inside Al Reem Island N5386 3/2/08 18 M 3/8/09 WT Lines inside Al Sowa Island N6740 Feb.09 15M May.10 Umm Al Nar “B” Pumping Station Extension N6043 15/108 24 15/10/10 Water Transmission Scheme from Musaffah to Abu Dhabi Island N4268 Dec.08 24M Dec.10

Al Wathba to Al Ain WTS N6137 Jan.09 24M Jan.011 Shobaisi and Remah Pumping Station Upgrades N2860-1 4/6/05 24 M 1/3/09 Water Transmission Scheme from Tap off 9A (UWEC) to Al Hayer up to Valve House

N4381 25/2/08 30M 28/8/010

DN1000 Pipeline- Sweihan to Remah WTSP.S. to AAR transmission line N4604 23/7/07 12M Dec.08

Urgent Works at Al Ain Reception, Sarouj, Khabisi and Hilli Pumping Station N 3232 May 07 12 M May 08

Upgrade of Pumping Equipment in Different Pumping Stations in Al Ain N3901-1 2/9/07 24 M Sep, 09

Construction of New 200mm PN160 Bar Carbon Steel pipeline to Jabel Hafeet Summit Reservoir from Base Pumping Station

N 4927 8/6/08 18 M 7/12/09

Fujairah Water Transmission System Upgrade N5805 1/3/08 24M 30/6/010 Water Supply Systems to Jazirat Al Hamra – RAK N4028 Mar 06 12 M Jun, 08

Upgrading of Mirfa, Madinat Zayed, Mazairah and Liwa Area Water Transmission Scheme N3850 1/6/07 18M 31/1/09

Replacement of Chlorination System at Various PS (Phase 2) G2194 20/2/07 24 19/2/09

Consultancy Services for the Calibration of Network Hydraulic Model and Risk N4650 Jan, 07 9M Oct, 08


3.5 Water Balance Result Based on the ADWEC’s demand forecast, Transco carried out a comprehensive breakdown water balance, covering the period of 2008-2020, where demands are allocated at each interface point with the distribution companies. As mentioned in Section 1.2.1 (ADWEC Demand Forecast) above, TRANSCO received from ADWEC the water demand breakdown of their global forecast on 10th June 2008 vide ADWEC’s letter of Ref. ADWEC/PSD-MD/Transco/134/6.08. The submitted forecast accounts for the most likely scenario as ADWEC termed based on the unpatterned Mega Projects Demand i.e. without population substitution considerations and project completion uncertainty including existing demands which ADWEC recommend for TRANSCO’s systems expansion planning. The provided data and information was utilized by TRANSCO in the overall network analysis and for this reason it is to be noted that it is completely different from the Most likely Water Demand Forecast Scenario utilized by ADWEC in their Statement of Future Capacity Requirements 2008-2030. In preparing the water balance the following were considered:

• Existing water Transmission System Details • Running Projects (under construction and under-study, tendering and ward stage projects) • ADWEC demand forecast and Production expansion Plan • As ADWEC production plan covers till 2012 only, different scenarios for expected future

production capacities and their location were considered for the period beyond 2012 Comprehensive water balance analysis (2008-2020) is discussed in details in Annexure, Volume-1 of Transco’s detailed “Comprehensive Analysis of Abu Dhabi Water Transmission Network. Water Balance Analysis for the planning period 2008-2013 is attached at the end of this Chapter and is summarized below: The Water Balance Analysis of the Water Network shows that the bulk of shortfall in supply is in Zone 4 (Al Ain Region) starting from this year 2008. The shortfall in Zone 3 (Western Region + Part of Mainland) starting by year 2010 and 2011 cannot be considered as shortfall as actual demand in reality will be below the forecasted figures. The Table below presents the demand and supply analysis for Abu Dhabi Emirate from year 2008 to 2013 by Zone which reflects when each Zone commences to experience the shortage and to where the bulk of the shortfall is concentrated.


Table 3.2: Global Water Balance of Abu Dhabi Emirates 2008-2013.






Others)

Year

Tota

l Sup

ply

(MIG

D)

Tota

l Dem

and

(MIG

D)

Incl

udin

g N

E

Ove

rall

Surp

lus

/ Sho

rtfa

ll

DEM

AN

D

Surp

lus/

Sh

ortfa

ll

DEM

AN

D

Surp

lus/

Sh

ortfa

ll

DEM

AN

D

Surp

lus/

Sh

ortfa

ll

DEM

AN

D

NO

RTH

ERN

EM

IRA

TES

DEM

AN

D

Surp

lus/

Sh

ortfa

ll

2008 651 711 -60 112.89 9.13 162.99 4.60 167.59 3.60 247.67 20.00 -75.78

2009 685 774 -89 116.04 0.00 176.94 17.21 182.70 0.00 267.52 30.50 -106.21

2010 817 843 -26 122.02 0.00 185.94 0.00 202.41 -4.07 287.20 45.50 -22.30

2011 868 900 -32 130.25 0.00 200.10 0.00 222.97 -2.56 301.02 45.50 -29.28

2012 969 952 17 134.97 0.00 210.39 0.00 246.22 17.02 314.60 45.50 0.00

2013 969 1000 -31 140.41 -18.12 220.36 0.00 265.72 0.00 328.37 45.50 -13.55


Table 3.30: Global Water Balance of Abu Dhabi Emirates 2008-2013 without Northern Emirates.






Others)

Year

Tota

l Sup

ply

(MIG

D)

Tota

l Dem

and

(MIG

D)

Excu

ding

NE

Ove

rall

Surp

lus

/ Sho

rtfa

ll

DEM

AN

D

Surp

lus/

Sh

ortfa

ll

DEM

AN

D

Surp

lus/

Sh

ortfa

ll

DEM

AN

D

Surp

lus/

Sh

ortfa

ll

DEM

AN

D

NO

RTH

ERN

EM

IRA

TES

DEM

AN

D

Surp

lus/

Sh

ortfa

ll

2008 651 691 -40 112.89 9.13 162.99 4.60 167.59 3.60 247.67 -55.78 2009 685 743 -58 116.04 0.00 176.94 17.21 182.70 0.00 267.52 -75.71 2010 817 798 19 122.02 0.00 185.94 0.00 202.41 -4.07 287.20 23.20 2011 868 854 14 130.25 0.00 200.10 0.00 222.97 -2.86 301.02 16.22 2012 969 906 63 134.97 0.00 210.39 0.00 246.22 17.02 314.60 45.50 2013 969 955 14 140.41 0.00 220.36 0.00 265.72 13.83 328.37 0.00


3.6 Hydraulic Analysis The Hydraulic Analysis of the Water Transmission System is carried out using the features and capabilities of the Infowater Hydraulic Modeling Software. A geographical representation of the Transmission Network was generated from the ADWEA GIS System and was used as a base Model in the simulation process for each planning period under consideration. The following data and assumptions were utilized in the preparation and analysis of every Model:


• The system was analyzed based on the Water Demand Forecast furnished by ADWEC for the

period 2008 till 2020 covering the whole of Abu Dhabi Emirates including the Northern Emirates requirements, as summarized in Section-1 of this 5Y Planning Statement. The demands were grouped as per identified Connection and Interface Points with the Distribution Companies. The total yearly demand for each Connection and Interface Points were reflected and distributed to each respective demand nodes of the Model.

• ADWEC’s proposed Desalination Expansion for the Period 2008-2013, and Transco’s Production

plan scenarios for the period beyond 2013 • Implementation of On-going and Committed Projects as per plan and execution Schedules in

order to determine the least additional reinforcements of the transmission system based on the new 2008 ADWEC Water Demand Forecast.

• All static data of the various existing/under construction transmission pipelines, pumping stations,

reservoirs, and all expected facilities that will be constructed are incorporated in the Model which will be evaluated after the simulation run in order to determine their capabilities.

The above data and assumptions were analyzed and modeled, considering the water balance for each periodic year that serves as a guide on how the system will be operated or reinforced. The capabilities of every facilities i.e. pipelines, pumps, etc. are evaluated and verified according to the Planning Criteria and Water Security Standard as specified in Section-2 of this 5Y Planning Statement. 3.7 Risk Analysis The risk analysis of the entire Water Transmission System is carried out based on the Mott Macdonald tailored methodology of risk assessment which is entirely based on probabilistic approach. Risk analysis of the system for each zones are discussed further and presented in the Annexure - Volume 2 of the report-“Comprehensive Analysis of the Abu Dhabi Water Transmission Network (2008-2020) 3.8 Transco Expansion Plans As a result of the recent In-house Study carried by TRANSCO’s Water Network Planning Dept., the following reinforcements in the Water Transmission Network are recommended for implementation: The Projects enumerated below are the major Constraints identified from the in-house study in the water transmission Network. The established network reinforcements and/or upgrades must be implemented to facilitate the proper evacuation of the new or additional water capacities towards the Areas/Locations where water is required.

Implementation Period 2008-2012


• Commissioning of Fujairah Phase 2 (2010), the following are the Major system requirements:

1. New additional Reservoirs at Fujairah (Qidfa) – 80.00 MIG. (To be

implemented by the new IWPP). 2. Additional 130.00 MGD Pumping Station at Fujairah (Qidfa) with the same

capacity as the existing pumps. 3. New 1x1600 mm Pipeline from Fujairah (Qidfa) to Summit Reservoir with a total

length of 37.80 kms. 4. Additional new tank of capacity 5.00 MIG at Summit Reservoir. 5. New 1x1600 mm Pipeline from Summit Reservoir to Tap Off 9A approximately 91.95 Kms.

• Commissioning of Shuweihat Phase 2 (2011), the following are the Major system

requirements: 1. New additional Reservoirs at Shuweihat – 100.00 MIG. (To be implemented by the new IWPP). 2. Additional four (4) pump units with the same capacity as the existing unit (4x30

MIGD) at Shuweihat P&DP and additional two (2) pump units with the same capacity as the existing unit (2x30 MIGD) at the existing Mirfa Intermediate Pumping Station


• Commissioning of Shuweihat Phase 3 - 101.00 MIGD (2011), the following are the

Major system requirements: 1. New additional Reservoirs at Shuweihat – 100.00 MIG. (To be implemented by the new IWPP). 2. New pumping station with a capacity of 115.0 MIGD at Shuweihat P&DP. 3. Construction of 1x1600mm CS from Shuweihat New PS up to Mussafah and

Unit IV Pumping Stations for a Total length of 241.0 km. Provisions for a tap off connection to Mirfa IPS PS (SWTS).


To meet the increased in Demand in all the four (4) Pressure Zones.

Implementation Period 2005 – 2009 • Water Transmission Scheme from Mirfa Pump Station up to Muzairah Pump Station

(2009).

Implementation Period 2006 – 2010 • Water Transmission Scheme from Taweelah to Unit III and from Unit III to Abu

Dhabi Island (2007)


• Water Transmission Scheme from Musaffah to Abu Dhabi Island (2010) • Water Transmission Scheme-1 x DN1600 from Umm Al Nar Junction to Sadiyat

Island, Mina & Al Reem Island (2009) • Water Transmission Scheme from Tap off 9A (UWEC) to Al Hayer up to Valve House

(2010). • Supply and Installation of DN1000 Pipeline (8.0 km) from the 2 x DN1200 Pipelines

from Sweihan P.S. to AAR transmission line (2008). • New Reservoirs at Ajban Pumping Station – 10 MG in Ajban Pumping Station (2009)

Implementation Period 2008 - 2012

• Al Wathba to Al Ain Water Transmission Network (2011) • Al Ain Water Distribution Network (2011) • Mirfa to Muzairah Transmission Upgrade (2010-2012). • Fujairah Local Distribution Supply from the Fujairah Power and Desalination Plant

(2011) • Water Supply Scheme from Al Hinya to Al Hamra Area (Ras Al Khaimah -2010) • Mussafah Pumping Station Distribution Network (2011) • Unit III Distribution Network (2011)

3.9 Deviations in Strategic Plans The major deviations in Strategic Plans for the Development of Water Transmission System Adopted in this 8th Five Year Planning Statement compared to the 5th and 6th Five Year Planning Statement are highlighted in Table 3.40 below:


Table 3.4: Major Deviations in the Water Transmission System Strategic Plans (5th, 6th and 7th Five Year Planning Statement) S.N 6th Five Yr. Planning Statement

(2007-2011) 7th Five Yr. Planning Statement

(2008-2012) 8th Five Yr. Planning Statement

(2009-2013)

1

TRANSMISSION Capacity Planning was based on four scenarios based on ADWEC’s Generation Expansion Plan with priority on both Fujairah Phase 2 and Shuweihat Phase 2. Shuweihat Phase 2 to be in service by 2010 and Fujairah Phase 2 by 2011.

TRANSMISSION Capacity Planning was based on Fujairah Phase 2 and Shuweihat Phase 2 in service by year 2010 and 2011, commissioning year opposite with the 6th Five Year Planning Statement.

TRANSMISSION Capacity Planning was based on Fujairah Phase 2, Shuweihat Phase 2 and Shuweihat Phase 3 in service by year 2010, 2011 and 2012.

2

Contract N1995 – Upgrading of Mirfa, Madinat Zayed, Mazaira, and Liwa Area Water Transmission Scheme

The Project covers the installation of additional transmission facilities which includes the installation of a 900mm pipeline from the New Mirfa Desalination Plant to Madinat Zayed through IPS 1 And IPS 2 up to Mazairah.

Contract N1995 – Upgrading of Mirfa, Madinat Zayed, Mazaira, and Liwa Area Water Transmission Scheme

Amendments on Scope of work as per higher Management decision which is limited to a proposed DN800 Carbon steel with one shot pumping from New Mirfa Desalination Plant up to Madinat Zayed only.

A new project is proposed in addition to the existing contract N1995

This project will reinforce the deficiencies in the existing and proposed transmission facilities from Mirfa to Muzairah (Intermediate pumping station to Terminal stations). The scope of work includes: Installation of additional pumps at Madinat Zayed, Muzairah and IPS-1. 1 x DN900 Transmission Pipeline from Madiant Zayed up to Muzairah and construction of additional storage tanks at Summit, Muzairah, IPS-1 and IPS-2.

3

Contract N1965 – Consultancy Services for Water Management System

The scope includes all works required to have un-manned pumping stations monitored and controlled from LDC and is expected to be completed by early period of 2008

Contract N1965 – Consultancy Services for Water Management System

The Consultancy Contract was put on hold and later was closed as per higher management decision.

4

Contract N-3131 (Lot GG) – Mussafah Water Tranmsission Scheme Upstream Unit IV to Unit V to Shobaishi Pumping Station.

Contract N-3131 was put on hold and later approved to be floated by this year. Revised completion date will be in line with Shuwiehat Phase 2 which is scheduled for 2011.

A new scope of work was proposed to replace the scope of work included in the N3131 Contract. This includes the following:

Construction/installation of a new Unit V Pumping Station with a


S.N 6th Five Yr. Planning Statement (2007-2011)

7th Five Yr. Planning Statement (2008-2012)


Contract N-3131 (Lot H) – Construction of Pumping Station at Shobaisi and DN1600 Transmission Pipeline to Al Ain South West.

Contract N-3131 (Lot J) – Construction of Pumping Station at Al Ain South West and DN1600 Transmission Pipeline to Umn Gafah.

The above two latter projects were already raised in 2004 and detailed design & Tender Documents were completed in April 2005 but was put on-hold by higher management. New scheme was approved with the adoption of Lot GG replacing Contract N-2859 and N-3889. All are tendered as one EPC Project under Contract N-3131. Expected completion date is by 2008/2009.

capacity of 82.00 MGD, 1 x DN1600 Transmission Pipeline from Unit V to Al Ain reception, 2 x DN1600 Transmission pipeline from TO-12 to Al Ain reception, construction of 3X25.00MIG storage tanks at Al Ain Reception and 4x10.00MIG storage tank at Unit V.

The new DN1600 transmission line will be laid from the new Unit V pumping station up to Al Ain reception Tank Farm instead of the Shobaishi and Al Ain South West as proposed in the 7th Five Year Planning Statement. Completion date is expected by the year 2011 in line with Shuweihat Phase 2.

5

Water Transmission scheme from Tap off 10 (UWEC) to Al Hayer up to Valve House

The purpose of this project is to provide additional source of supply to Al Ain region (Zone 2) utilizing Fujairah Water Transmission Scheme; to reduce OPEX as a result of bypassing & decommissioning of Pumping Stations; to provide Strategic Storage for Al Ain & Abu Dhabi Region.

The scope of the project includes construction/installation of Intermediate Pumping Station, 1 x DN1600 Transmission Pipeline from Tap off 10 to Al Hayer Reservoirs, construction of 4X10MIG storage tanks at Al Hayer, and construction of DN1600 Transmission Pipeline from Al Hayer to Valve House area.

Expected to be completed by early period of 2009.

Water Transmission scheme from Tap off 9A to Al Hayer up to Valve House

Part of scope of work of N3131 Contract Lot J (Zakher to Mezyad transmission facilities) was included in the contract due to deferment of N3131 and Shuwiehat Phase 2 project. Completion date is by year 2010.

Water Transmission scheme from Tap off 9A to Al Hayer up to Valve House

Scope of work was amended wherein a portion of the proposed transmission line (1 x DN1600) from Hilli Tap Off to Power House was deleted. This portion of transmission line will be transferred on the proposed Al Ain Water Transmission Scheme which is introduced on this year’s planning statement. Completion date is by year 2011.

6

Contract N2622– Pipeline at Abu Dhabi Island and Adjacent areas to supply the required demand of Sadiyat Island, Mina Zayed, Lulu Island and Al Reem Island will be reinforced further by additional transmission line 1 x DN1600 from UAN to Sadiyat Island.

Same as 6th Five Year Planning Statement but is expected to be completed by early period of 2009.

Same as 7th Five Year Planning Statement.


S.N 6th Five Yr. Planning Statement (2007-2011)



7

Network Risk Analysis undertaken for the existing and proposed transmission facilities based on Mott Mcdonald Probabilistic Approach

Same as 6th Five Year Planning Statement

Same as 6th Five Year Planning Statement

8

Fujairah Phase 2 scope of work includes provision for an Intermediate Pumping Station near TO-06 with production expansion of 100 MIGD. Expected to be commissioned by the year 2011.

Fujairah Phase 2 revised scope of work includes an additional transmission line spanning from Qidfa to Summit Reservoir to TO-9A with additional production expansion of 130 MIGD. Transmission line was justified in comparison with Intermediate Pumping station as a result of Whole Life Cost Analysis of the asset. Fujairah Phase 2 reschedule for year 2010 instead of 2011.

Same as 7th Five Year Planning Statement.

10

Al Ain Water Transmission System. A new project was introduced in the system that will cater Al Ain Distribution system on a long term basis with the complete removal of existing Al Ain terminal stations which includes Al Dhama, Al Khabisi, Al Maquam, Power House, Zakher, Zoo, Sarouj, Military Pump Stations and Al Ain reception existing transfer pumps. The propose project replaces in part the scope of N3131 Lot H and Lot J and is expected to be completed by year 2011. The scope of the project includes construction/installation of new pump groups at Al Ain Reception (PS-1 and PS-2) that will supply the above mentioned terminal stations directly to distribution system, 73.80 kms of transmission lines ranging from DN1600 down to DN1000 Ductile Iron pipes and construction of approximately 50.00 MIG storage tanks at Umn Ghaffa. Expected to be completed by the year 2011.

ABU DHABI WATER TRANSMISSION NETWORKWATER BALANCE - EXISTING SCENARIO

LEGEND: Production Facilities

ADPS P&DP TRANSCO Pumping Station

Capacity 0.00 Bet. UAN & Unit III Bet. TAW & Unit III DISCO Pumping Station

Storage 0.00 Demand 12.98 Demand 33.83 Distribution NetworkProduction 0.00 0.00 Wellfield Supply

Transmission Pipelines

0.00 UAN P&DP 12.98 33.83 Taweelah P&DP Distribution Pipelines

Capacity 145.00 UNIT III Capacity 264.00 Private Department Pipelines

Storage 130.00 12.98 Storage 30.00 Storage 160.00 TRANSCO Press. Zone Boundary

2 x 1200 Pump 0.00 1 x 1000 Pump 90.18 Pump 301.04Demand 112.89 112.89 Production 135.87 0.00 Output 70.76 Production 259.40 70.81Supply 112.89 34.81

3 x 900 0.00 35.94 Unit III Dist. 1.03 2 x 1200 Abu Dhabi - Dubai Road2 x 900 Demand 33.78 84.00 Demand 70.81

0.0010.00 2 x 900

UNIT IV Ajban 11.59 Ajban Dist.0.00 10.00 Storage 25.00 Storage 10.00 Demand 11.59

Pump 56.17 Pump 113.37Year of Analysis 2008 0.00 7.49 Output 53.43 Output 84.00

Mirfa CityDemand 7.19 Mussafah Dist. 14.72 19.71 2 x 1200

Mussafah 35.86 72.41 2 x 1000 Sweihan Dist.7.19 ICAD 2.50 Unit IV Dist. Demand 2.68

38.36 Demand 18.69Mirfa P&DP 2.68

Capacity 38.70 0.00 1.02 19.00 Sweihan PSStorage 40.00 1 x 1000 Storage 10.00 1 x 1200 Sweihan Reception

Demand 13.45 Demand 14.44 Pump 31.65 Demand 18.61 UNIT V (Al Wathba) Pump 100.00 0.00 Storage 40.00Production 40.48 Storage 3.00 Output 72.41 Output 0.00

0.00 Pump 1.43 69.7313.45 14.44 1.78 1 x 900 18.61 Output 1.02 0.51 2 x 1200

33.29 Al Faya & Others 1 x 1000800 0.00 0.00 Demand 1.54 0.00 0.00

Shuweihat P&DP Shuweihat IPS Mussafah PS 2 x 1600

Capacity 101.00 Storage 40.00 Storage 60.00 18.49 0.00Storage 90.00 Pump 134.22 45.85 Pump 60.01 0.00 Shobaishi 69.73Pump 170.02 2 x 1600 (2012) Output 64.46 Output 38.36 (2008) Storage 12.50 Al Ain Reception 0.00Production 97.39 600 Pump 28.75 Storage 20.00

1 x 800 0.00 0.00 0.00 Output-Rem 18.50 Pump 120.15 55.900.00 (2008) 1200/100/900 14.05 Output 105.79 2 x 1400

3.28 1 x 1000 0.00 1.02 1 x 1000 2 x 1600

Demand 33.29 Al Wathba Palace Unit V Dist. 0.00Sila Dist. Demand 14.72 Demand 1.02 Al Ain City Dist. 2x1200 (By-pass)

Demand 3.28 4.45 Demand 230.49 19.84Shobaishi Dist. Supply 154.71 2x1000

ZONE 1 ZONE 2 ZONE 3 ZONE 4 EMIRATES Khatim 1.02Total Plant Capacity 145.00 264.00 139.70 102.00 650.70 Khazna 3.43 3.43 15.03

Demands 112.89 162.99 165.59 247.67 689.15 1 x 1600 (2009)

Production (Actual) 135.87 259.40 137.87 102.00 635.14 Fujairah P&DP 102.00 82.00 77.12 62.09 55.90Available Supply 145.00 264.00 139.70 102.00 650.70 Capacity 102.00 2 x 1600 2 x 1600 2 x 1600

Surplus/Shortfall 32.11 101.01 -25.89 -145.67 -38.45 Storage 100.00 20.00 4.88 6.19Import 0.00 12.98 46.97 89.89 149.84 Pump 100.01Export 22.98 109.38 17.48 20.00 169.84 Production 102.00 DEWA-FEWA-SEWA-RAK-FUJ Tap Off 15/7/8 Tap Off 11/Aquifer Tap Off 13/14

Actual Surplus/Shortfall 9.13 4.60 3.60 -75.78 -58.45 Demand 20.00 Demand 4.88 Demand 6.19 Demand 0.00Analysis Date 22/10/08 Supply 20.00

1 X 1600 (2009)

Abu Dhabi Emirates

Abu Dhabi Island & Adjacent Islands

2 x 1600

Dist. Bet. Shuweihat & Mirfa

66.23

1 X 1600 (2008)

1 X 1600 (2010)

0.00

Dist. Bet. Mirfa & Mussafah

Jebel Dhana/Sir Baniyas/Delma Dist.

7.49

Dist. From Mirfa to Liwa

80.67

1 X 1600 (2008)

1 X 1600 (2011)

1600

1 X 1600 (2011)

104.5970.762x1000/1200/900/800/600

0.00

64.46

38.36

3 x 1200

1 X 1400 (2011)

1 X 1600 (2010)

1x1200(2008)

2 x 1600

0.00

3x900 /1200/800

105.79

1 X 1600 (2011)

2 x 1600

Tap Off 9A / 10

Tap

Off

12

PRESSURE ZONE 3

PRESSURE ZONE 1

PRESSURE ZONE 2

PR

ESSU

RE

ZON

E 4

TRANSCO / ADWEA WATER NETWORK DEVELOPMENT DEPARTMENT

ASSET MANAGEMENT DIRECTORATE10/22/2008












0.0028.96 2 x 900








7.25 Pump 1.43 69.5915.48 16.05 21.70 1 x 900 21.25 Output 1.03 0.51 2 x 1200





3.45 1 x 1000 17.06 1.03 1 x 1000 2 x 1600




Demands 116.04 176.94 182.70 267.52 743.19 1 x 1600 (2009)




1 X 1600 (2009)

Abu Dhabi Emirates


2 x 1600


66.02

1 X 1600 (2008)

1 X 1600 (2010)

15.28



8.49


82.07

1 X 1600 (2008)

1 X 1600 (2011)

1600

1 X 1600 (2011)

120.6086.602x1000/1200/900/800/600

0.00

60.70

42.86

3 x 1200

1 X 1400 (2011)

1 X 1600 (2010)

1x1200(2008)

2 x 1600

0.00

3x900 /1200/800

93.87

1 X 1600 (2011)

2 x 1600

Tap Off 9A / 10

Tap

Off

12

PRESSURE ZONE 3

PRESSURE ZONE 1

PRESSURE ZONE 2

PR

ESSU

RE

ZON

E 4














0.0022.98 2 x 900








7.27 Pump 1.43 71.0115.48 21.25 21.70 1 x 900 22.14 Output 1.03 0.52 2 x 1200





3.51 1 x 1000 6.43 1.03 1 x 1000 2 x 1600




Demands 122.02 185.94 202.41 287.20 797.57 1 x 1600 (2009)


Surplus/Shortfall 22.98 112.06 -62.71 -53.20 19.13 Storage 100.00 45.50 6.91 9.22Import 0.00 0.00 62.70 76.40 139.10 Pump 100.01Export 22.98 112.06 4.06 45.50 184.60 Production 234.00 DEWA-FEWA-SEWA-RAK-FUJ Tap Off 15/7/8 Tap Off 11/Aquifer Tap Off 13/14

Actual Surplus/Shortfall 0.00 0.00 -4.07 -22.30 -26.37 Demand 45.50 Demand 6.91 Demand 9.22 Demand 0.00Analysis Date 22/10/08 Supply 45.50

1 X 1600 (2009)

Abu Dhabi Emirates


2 x 1600


64.90

1 X 1600 (2008)

1 X 1600 (2010)

19.70



0.00


86.15

1 X 1600 (2008)

1 X 1600 (2011)

1600

1 X 1600 (2011)

136.55101.882x1000/1200/900/800/600

0.00

55.66

50.07

3 x 1200

1 X 1400 (2011)

1 X 1600 (2010)

1x1200(2008)

2 x 1600

0.00

3x900 /1200/800

159.95

1 X 1600 (2011)

2 x 1600

Tap Off 9A / 10

Tap

Off

12

PRESSURE ZONE 3

PRESSURE ZONE 1

PRESSURE ZONE 2

PR

ESSU

RE

ZON

E 4














20.000.00 2 x 900








7.27 Pump 77.43 74.8015.48 24.91 21.70 1 x 900 24.18 Output 2.06 0.52 2 x 1200





3.51 1 x 1000 19.26 1.03 1 x 1000 2 x 1600




Demands 130.25 200.10 222.97 301.02 854.34 1 x 1600 (2009)


Surplus/Shortfall -35.25 97.90 17.73 -67.02 13.36 Storage 100.00 45.50 7.48 10.02Import 35.25 0.00 10.31 83.24 128.80 Pump 100.01Export 0.00 97.90 30.90 45.50 174.30 Production 234.00 DEWA-FEWA-SEWA-RAK-FUJ Tap Off 15/7/8 Tap Off 11/Aquifer Tap Off 13/14

Actual Surplus/Shortfall 0.00 0.00 -2.86 -29.28 -32.14 Demand 45.50 Demand 7.48 Demand 10.02 Demand 0.00Analysis Date 22/10/08 Supply 45.50

1 X 1600 (2009)

Abu Dhabi Emirates


2 x 1600


160.95

1 X 1600 (2008)

1 X 1600 (2010)

26.70



24.47


185.86

1 X 1600 (2008)

1 X 1600 (2011)

1600

1 X 1600 (2011)

133.4097.492x1000/1200/900/800/600

1.03

149.34

60.40

3 x 1200

1 X 1400 (2011)

1 X 1600 (2010)

1x1200(2008)

2 x 1600

0.00

3x900 /1200/800

154.80

1 X 1600 (2011)

2 x 1600

Tap Off 9A / 10

Tap

Off

12

PRESSURE ZONE 3

PRESSURE ZONE 1

PRESSURE ZONE 2

PR

ESSU

RE

ZON

E 4














24.700.00 2 x 900








7.27 Pump 77.43 70.7315.48 29.24 21.70 1 x 900 27.36 Output 51.28 0.52 2 x 1200





3.51 1 x 1000 19.26 1.03 1 x 1000 2 x 1600




Demands 134.97 210.39 246.22 314.60 906.18 1 x 1600 (2009)



Actual Surplus/Shortfall 0.00 0.00 17.02 0.00 17.02 Demand 45.50 Demand 8.04 Demand 10.80 Demand 0.00Analysis Date 22/10/08 Supply 45.50

1 X 1600 (2009)

Abu Dhabi Emirates


2 x 1600


237.75

1 X 1600 (2008)

1 X 1600 (2010)

30.17



78.69


266.99

1 X 1600 (2008)

1 X 1600 (2011)

1600

1 X 1600 (2011)

130.6094.342x1000/1200/900/800/600

50.25

222.34

71.30

3 x 1200

1 X 1400 (2011)

1 X 1600 (2010)

1x1200(2008)

2 x 1600

0.00

3x900 /1200/800

199.30

1 X 1600 (2011)

2 x 1600

Tap Off 9A / 10

Tap

Off

12

PRESSURE ZONE 3

PRESSURE ZONE 1

PRESSURE ZONE 2

PR

ESSU

RE

ZON

E 4














22.000.00 2 x 900








7.27 Pump 77.43 74.6615.48 32.06 21.70 1 x 900 30.54 Output 53.28 0.52 2 x 1200





3.51 1 x 1000 19.26 1.03 1 x 1000 2 x 1600




Demands 140.41 220.36 265.72 328.37 954.86 1 x 1600 (2009)



Actual Surplus/Shortfall -18.12 0.00 0.00 -13.55 -31.66 Demand 45.50 Demand 8.69 Demand 11.59 Demand 0.00Analysis Date 22/10/08 Supply 45.50

1 X 1600 (2009)

Abu Dhabi Emirates


2 x 1600


251.94

1 X 1600 (2008)

1 X 1600 (2010)

32.84



81.98


284.00

1 X 1600 (2008)

1 X 1600 (2011)

1600

1 X 1600 (2011)

127.6890.902x1000/1200/900/800/600

52.25

236.14

81.33

3 x 1200

1 X 1400 (2011)

1 X 1600 (2010)

1x1200(2008)

2 x 1600

0.00

3x900 /1200/800

194.53

1 X 1600 (2011)

2 x 1600

Tap Off 9A / 10

Tap

Off

12

PRESSURE ZONE 3

PRESSURE ZONE 1

PRESSURE ZONE 2

PR

ESSU

RE

ZON

E 4



ABU DHABI WATER TRANSMISSION NETWORKWATER BALANCE - SCENARIO 1




Storage 0.00 Demand 12.98 Demand 33.83 Distribution Network

Production 0.00 0.00 Wellfield SupplyTransmission Pipelines






0.0010.00 2 x 900








0.00 Pump 1.43 69.7313.45 14.44 1.78 1 x 900 18.61 Output 1.02 0.51 2 x 1200

33.29 Al Faya & Others 1 x 1000

800 0.00 0.00 Demand 1.54 0.00 0.00Shuweihat P&DP Shuweihat IPS Mussafah PS 2 x 1600



3.28 1 x 1000 0.00 1.02 1 x 1000 2 x 1600




Demands 112.89 162.99 165.59 247.67 689.15 1 x 1600 (2009)




0.00

1 X 1600 (2010)

1 X 1600 (2011)

3x900 /1200/800

105.79


2 x 1600 2 x 1600 1x1200(2008)

1 X 1400 (2011)

80.67 66.23 64.462 x 1600

7.49 1 X 1600 (2011)


0.00 1 X 1600 (2011)



1600

38.36

1 X 1600 (2010)Abu Dhabi Emirates

2x1000/1200/900/800/600

1 X 1600 (2008) 1 X 1600 (2008)


0.00 70.76 104.593 x 1200

1 X 1600 (2009)

Tap Off 9A / 10

Tap

Off

12

PRESSURE ZONE 3

PRESSURE ZONE 1

PRESSURE ZONE 2

PR

ESSU

RE

ZON

E 4

TRANSCO / ADWEAWATER NETWORK DEVELOPMENT DEPARTMENT

ASSET MANAGEMENT DIRECTORATE 10/22/2008












0.0028.96 2 x 900








7.25 Pump 1.43 69.5915.48 16.05 21.70 1 x 900 21.25 Output 1.03 0.51 2 x 1200





3.45 1 x 1000 17.06 1.03 1 x 1000 2 x 1600




Demands 116.04 176.94 182.70 267.52 743.19 1 x 1600 (2009)




0.00

1 X 1600 (2010)

1 X 1600 (2011)

3x900 /1200/800

93.87


2 x 1600 2 x 1600 1x1200(2008)

1 X 1400 (2011)

82.07 66.02 60.702 x 1600

8.49 1 X 1600 (2011)


0.00 1 X 1600 (2011)



1600

42.86


2x1000/1200/900/800/600

1 X 1600 (2008) 1 X 1600 (2008)


15.28 86.60 120.603 x 1200

1 X 1600 (2009)

Tap Off 9A / 10

Tap

Off

12

PRESSURE ZONE 3

PRESSURE ZONE 1

PRESSURE ZONE 2

PR

ESSU

RE

ZON

E 4














0.0022.98 2 x 900








7.27 Pump 1.43 71.0115.48 21.25 21.70 1 x 900 22.14 Output 23.33 0.52 2 x 1200





3.51 1 x 1000 6.43 1.03 1 x 1000 2 x 1600




Demands 122.02 185.94 202.41 287.20 797.57 1 x 1600 (2009)


Surplus/Shortfall 22.98 112.06 -62.71 -53.20 19.13 Storage 100.00 45.50 6.91 9.22Import 0.00 0.00 62.70 98.70 161.40 Pump 100.01Export 22.98 112.06 26.36 45.50 206.90 Production 234.00 DEWA-FEWA-SEWA-RAK-FUJ Tap Off 15/7/8 Tap Off 11/Aquifer Tap Off 13/14

Actual Surplus/Shortfall 0.00 0.00 -26.37 0.00 -26.37 Demand 45.50 Demand 6.91 Demand 9.22 Demand 0.00Analysis Date 22/10/08 Supply 45.50

0.00

1 X 1600 (2010)

1 X 1600 (2011)

3x900 /1200/800

182.25


2 x 1600 2 x 1600 1x1200(2008)

1 X 1400 (2011)

108.45 87.20 77.962 x 1600

22.30 1 X 1600 (2011)


22.30 1 X 1600 (2011)



1600

50.07


2x1000/1200/900/800/600

1 X 1600 (2008) 1 X 1600 (2008)


19.70 101.88 136.553 x 1200

1 X 1600 (2009)

Tap Off 9A / 10

Tap

Off

12

PRESSURE ZONE 3

PRESSURE ZONE 1

PRESSURE ZONE 2

PR

ESSU

RE

ZON

E 4














20.000.00 2 x 900








7.27 Pump 77.43 74.8015.48 24.91 21.70 1 x 900 24.18 Output 31.34 0.52 2 x 1200





3.51 1 x 1000 19.26 1.03 1 x 1000 2 x 1600




Demands 130.25 200.10 222.97 301.02 854.34 1 x 1600 (2009)



Actual Surplus/Shortfall 0.00 0.00 -32.14 0.00 -32.14 Demand 45.50 Demand 7.48 Demand 10.02 Demand 0.00Analysis Date 22/10/08 Supply 45.50

0.00

1 X 1600 (2010)

1 X 1600 (2011)

3x900 /1200/800

184.08


2 x 1600 2 x 1600 1x1200(2008)

1 X 1400 (2011)

215.14 190.23 178.622 x 1600

53.75 1 X 1600 (2011)


30.31 1 X 1600 (2011)



1600

60.40


2x1000/1200/900/800/600

1 X 1600 (2008) 1 X 1600 (2008)


26.70 97.49 133.403 x 1200

1 X 1600 (2009)

Tap Off 9A / 10

Tap

Off

12

PRESSURE ZONE 3

PRESSURE ZONE 1

PRESSURE ZONE 2

PR

ESSU

RE

ZON

E 4














24.700.00 2 x 900








7.27 Pump 77.43 70.7315.48 29.24 21.70 1 x 900 27.36 Output 51.28 0.52 2 x 1200





3.51 1 x 1000 19.26 1.03 1 x 1000 2 x 1600




Demands 134.97 210.39 246.22 314.60 906.18 1 x 1600 (2009)




0.00

1 X 1600 (2010)

1 X 1600 (2011)

3x900 /1200/800

199.30


2 x 1600 2 x 1600 1x1200(2008)

1 X 1400 (2011)

266.99 237.75 222.342 x 1600

78.69 1 X 1600 (2011)


50.25 1 X 1600 (2011)



1600

71.30


2x1000/1200/900/800/600

1 X 1600 (2008) 1 X 1600 (2008)


30.17 94.34 130.603 x 1200

1 X 1600 (2009)

Tap Off 9A / 10

Tap

Off

12

PRESSURE ZONE 3

PRESSURE ZONE 1

PRESSURE ZONE 2

PR

ESSU

RE

ZON

E 4














22.000.00 2 x 900








7.27 Pump 77.43 74.6615.48 32.06 21.70 1 x 900 30.54 Output 66.83 0.52 2 x 1200





3.51 1 x 1000 19.26 1.03 1 x 1000 2 x 1600




Demands 140.41 220.36 265.72 328.37 954.86 1 x 1600 (2009)




0.00

1 X 1600 (2010)

1 X 1600 (2011)

3x900 /1200/800

208.08


2 x 1600 2 x 1600 1x1200(2008)

1 X 1400 (2011)

284.00 251.94 236.142 x 1600

81.98 1 X 1600 (2011)


65.80 1 X 1600 (2011)



1600

81.33


2x1000/1200/900/800/600

1 X 1600 (2008) 1 X 1600 (2008)


32.84 122.57 159.353 x 1200

1 X 1600 (2009)

Tap Off 9A / 10

Tap

Off

12

PRESSURE ZONE 3

PRESSURE ZONE 1

PRESSURE ZONE 2

PR

ESSU

RE

ZON

E 4




4.1 Introduction As a result of the above referred In-house Study carried by Transco the following reinforcements in the Water Transmission Network were recommended for implementation, which are required to meet the increasing demand and/or to meet the required level of security of supply: 4.2 Systems Topology

The indicated network topology takes into account the scope and implementation schedule of the current on-going projects, projects in the tendering stage and the proposed projects (under planning & feasibility study stage) during the planning horizon, together with the proposed projects as a result of detailed water balance and hydraulic modeling. The whole water transmission systems schematics and geographic diagrams for the planning period 2008-2013 are attached at the end of this Chapter and in Annexure Volume 3- Appendix A. Summary of system topology yearly wise for the planning period (2008-2013) are as follows:

4.2.1 SYSTEMS TOPOLOGY OF YEAR 2008 During this year, the total available production is about 651.0 MIGD while the overall demand is forecasted as 711.0 MIGD, leading to a shortfall of about -60.0 MIGD. A. Abu Dhabi Region

The planned projects that are to be completed and commissioned in the Abu Dhabi Region during this period are the following: • Contract N4277/N-3252- Water Transmission Scheme from Taweelah to Unit III

and from Unit III to Abu Dhabi Island. This Project is intended to meet the demand supplied by Unit III Pumping Station and to meet the shortfall in supply in Abu Dhabi Island due to decommissioning of UAN East & West; which was extended to year 2010, as well to meet the daily peak demand of the Island. The Transmission Scheme will evacuate the water production of proposed TAW “B” Extension (IWPP). Project completed and system in service.

B. Al Ain Region Projects that are expected to be completed within the Al Ain Region are stated below which are purposely planned in improving the systems operational requirements and efficiency at specific areas in the Zone due to increase in demand and additional supply. • Contract N3220 – Urgent Works at Khabisi, Zakher, Military and Zoo Pumping

Station. The purpose of this project is to provide proper transmission and distribution of the additional water from Fujairah to the intended location within Al Ain particularly to


Sarouj, Khabisi, Zakher, Military and Zoo pump stations. Expected completion date is June 2008.

• Contract N 3232 – Urgent Works at Al Ain Reception, Sarouj, Khabisi and Hilli Pumping Station.

The purpose of this project is to allow bypassing of Al Ain Reception Pumping Station, utilizing the existing pressure at Tap off 12 to deliver water to the intended location within Al Ain. Expected completion date is May 2008.

• Contract N4604 (construction) - Supply and Installation of DN1000 Pipeline from the 2 x DN1200 Pipelines from Sweihan P.S. to AAR transmission line.

The purpose of this project is to provide supply to Remah, Al Saad and Al Maquam Palace utilizing Taweelah water or water from UWEC from Sweihan Pumping Station. Expected Completion date is December 2008

• Contract N4028 (construction) / N3917 (consultancy) – Water Supply Systems to Jazirat Al Hamra – RAK

This project is required to supply water to Jazirat Al Hamra in RAK. The scope of the project includes the following:

- Construction of 2X1.0 MIG concrete storage tanks near Al Hinya - Construction of 2X5.0 MIG steel storage tanks near Jazirat Al Hamra - Construction of DN800 pipeline CS (40km) from the new 2X1.0MIG storage tanks at

Al Hinya to the new 2X5MIG storage tanks at Jazirat Al Hamra. - Construction of DN800 DI pipeline (5km) from Jazirat Al Hamra tanks to Emirates

highway. - Construction of DN600 DI distribution ring pipeline (29km) at Jazirat Al Hamra to

consumers. Project completed and system in service.

C. Western Region Zone The major development works involved in connection with the commissioning of Phase I of Shuweihat Power and Desalination Plant (Year 2005 -101.0 MGD), as per developed concept scheme for the adequate balance of transmission supply to the network, were already completed during the year 2005 except the Project No. G2012: DN1000 Water Pipeline from Shuwiehat to Sila which is completed in 2007.

D. Whole Emirates The major Project whose scope covers the entire Abu Dhabi Emirates that will be completed during this year is: • Consultancy Services for the Calibration of Network Hydraulic Model and Risk.

The proposed Project will be beneficial for the accurate analysis of the water transmission network using calibrated model both steady state and extended period


scenarios including process of identifying the risk within the transmission system as well as the corresponding mitigation measures to help improve the efficiency of the network. The work involves the Network hydraulic modeling calibration and risk analysis of the transmission network. Project Duration is nine (9) months. Expected Completion date is by October 2008.

4.2.2 SYSTEMS TOPOLOGY OF YEAR 2009 During this year the system will have a total available production of about 685.0 MIGD while the total demand of the network will be about 774.0 MIGD. There will be a shortfall of about -89.0 MIGD. A. Abu Dhabi Region

The planned projects that must be completed and commissioned in the Abu Dhabi Region during this period to facilitate the delivery of the required flow and pressure to the Island and its adjacent Islands are the following. • Contract N2622– Water Supply to Sadiyat Island.

The Project which includes a DN1600 and DN1200 transmission line (capacity of 76.00 MGD) aims to provide transmission supply facilities to the developments at Sadiyat Island and Al Reem Island including provisions for future supply points to Mina Zayed Area and Lulu Island. It will be connected to the proposed DN1600 over looping line from UAN with supply coming from Unit III pump station. Expected completion date is 21/1/09.

• N5807: DN1600 mm from Sas Al Nakheel (UAN) to Sadiyat Island. This project is required to meet the demands in Sadiyat Island, Al Reem Island, Al Raha Beach Development, Lulu Island and to increase the security of supply to Abu Dhabi Island in case of possible outage of the proposed DN1600 transmission pipeline from Mussafah Pump Station or any of the DN1200/DN900 pipes crossing Maqta Channel. The project includes construction of a 1 x DN1600mm transmission line including 2 x DN1200mm Submarine pipelines extending from UAN until the Sadiyat Island interconnection point with Project N2622. The project is scheduled to be completed by 19July 2009

• N5386 DN1200 Transmission Lines Inside Al Reem Island The scope of work covers the following: Lot-A: DN1200 DI main Pipeline (2.75 km), which starts at connection V/V chamber constructed under project N-4399 “CS pipeline” and ends at the north part of the island (connect with Lot-B) DN1200 DI Pipeline (2.35 km) branch from main line to the east part of the island Provision for future connection arrangement, DN1200 isolation valve and end cap for supply from Sadiyat Island


DN1200 DI pipe (0.30km) at Mina Zayed area, connecting the Twin DN900 CS submarine lines to the valve chamber constructed under project N-2622. Completion date is 03 August 2009

B. Al Ain Region The planned water transmission projects that must be completed and commissioned in the Al Ain Region during this year are the following which are mainly to address the growing shortage of supply of the Region: • Contract N3901-1 – Upgrade of Pumping Equipment in Different Pumping Stations

in Al Ain. The scope of this project covers works at different pumping stations within Al Ain Region including automation of pumping stations from their control rooms. Expected completion date is September 2009.

• Contract N 4927 (construction) – Construction of New 200mm PN160 Bar Carbon Steel pipeline to Jabel Hafeet Summit Reservoir from Base Pumping Station. The purpose of this project is to provide security of supply to Jabel Hafeet area by constructing a new similar DN200mm PN160 Bar pipeline along the existing line. Expected completion date is Dec 2009.

• Project No. N-2860: Shobaisi and Remah Pumping Station Upgrades

The Project intends to upgrade the local distribution pumps, control system and electrical equipments at Shobaisi PS and Remah PS to cope with the increase in demand and to modernized their operation and control systems. The Project is planned for completion by March 2009.

C. Western Region Zone The major transmission facility that is expected to be completed during this Year 2009 in this Region is as below which is primarily to provide security of supply and due to the increase in demand of the Areas covered by the Project.

• Contract N3850 (construction)/N1995 (consultancy) – Upgrading of Mirfa, Madinat Zayed, Mazairah and Liwa Area Water Transmission Scheme.

The Project covers the installation of additional pumps with similar capacities at each of the above stations including all associated works and installation of related required accessories. The upgrading of the above transmission system is required to cater urgent requirements due to increase in demand for the area as forecasted by ADWEC and to ensure security of supply to the area. The scope of the project includes the followings:

1. Construction of 1XDN800mm CS pipeline, (62km), (as free issue Materials), from Mirfa Intermediate Pumping station (Lot-C) to Madinat Zayed Pump Station.

2. Construction of new pump station at Mirfa (Lot C) which shall feed the new CS DN 800 mm transmission pipeline.


3. Construction of new distribution pump station at Madinat Zayed, including 4X1.5MIG concrete tanks, which feed the existing DN 900mm to Madinat Zayed, Madinat Mohammed and New Housing Development.

Expected completion date is 31 January 2009.

D. Whole Emirates The major Project whose scope covers the entire Abu Dhabi Emirates that will be completed during this year is: • Contract G2194 – Replacement of Gas Chlorination System At Various Pumping

Stations (Phase II). The proposed Project is for the replacement of the existing chlorination system by on-site generated hypochlorite system of remaining Transco pumping stations, which are not included in phase I project. Expected completion date is February 2009.

E. Northern Emirates

The major Project whose scope covers the entire Northern Emirates that will be completed during this year is: • Water Supply Scheme from Al Hinya to Al Hamra Area (Ras Al Khaimah)

1. Supply, installation, testing and commissioning of approximately 34.00 Kms of

DN800 Ductile Iron Transmission Pipeline from the Tawian roundabout up to Bureirat tank farm.

2. Provision for Flow Control Valve at Bureirat tank farm. 3. Associated SCADA Integration Works. Expected completion date is 2009.

4.2.3 SYSTEMS TOPOLOGY OF YEAR 2010 During this year Fujairah F2 will be commissioned with an additional capacity of 132.0 MIGD accordingly the system will have a total available production of about 817.0 MIGD while the overall demand reaches to about will be 843.0 MIGD, this will lead to a shortfall of about -26.0 MIGD. A. Abu Dhabi Region

The planned projects that are to be completed and commissioned in the Abu Dhabi Region during this period are the following: • N4383: Abu Dhabi Island network development

This project is required to meet the future demand of Abu Dhabi Island and its surroundings due to decommissioning of ADPS, and provision to allow bypassing of Unit I and II Pumping Stations as well as some pipeline connections and installation of FCV and PRV to maintain the required ADDC pressures. The project is under construction and expected to be completed by January 2010.

• N6740: Water Transmission Lines Inside Al Sowa Island The main components of the proposed works are as follows:


Lot-B • DN1200 CS submarine (Horizontal Directional Drilling Process) Pipeline (0.5 km),

which starts at AD Island Mina area to Sowa Island, with valves and fittings and associated civil works.

• DN1200 DI pipeline onshore (0.6 Km), which starts on west of Sowa Island to other end (east side) with DN500 tee branch to distribution network and with ARV, WO valves etc

• DN 1200 DI (0.1 km) Submarine Pipeline Crossing (by NDRC process) from Al Sowa Island to Al Reem Island.

- Total length of pipelines: 700 m DN1200 DI (Onshore + Offshore) and 500m DN1200 CS sub-sea (offshore)

The project is in tender preparation stage and expected to be completed by May 2010

• Contract N-6043 – Umm Al Nar “B” Pumping Station Extension. The works at Umm Al Nar ‘B’ pumping station will extend the existing pumping station to increase the duty pumping capacity at 10-bar discharge pressure to 50 MIGD to provide an overall pumping station duty capacity of 95 MIGD. The project is in tendering stage and the expected completion date is October 2010.

• Contract N4268 /N3884 - Water Transmission Scheme from Musaffah to Abu Dhabi Island. The proposed project will complement the additional water supply required to Abu Dhabi Island from Mussafah Pump Station in view of the anticipated demand shortfall brought about by the decommissioning of ADPS, UAN-E and UAN-W. This Station is also rated to meet the daily peak demand of Abu Dhabi Island. The scope of the project includes the installation of a 1 x DN1600mm Transmission Pipeline from Mussafah Pump Station up to Abu Dhabi Island including the required reservoir. The Project is expected to be completed by Dec 2010.

• Unit III Distribution Network 1. New 45.0 Kms. of 1x1200 mm reinforcement line from Unit III to UAN junction

parallel to existing DN1000 line and forming a loop along the Abu Dhabi-Airport Road (Between Khalifa B And C) towards Unit III PS.

2. New 42.00 MGD Capacity Pumping Station for Mega Projects (Initially) with provisions for future extension.

3. New Reservoirs at Unit III Pumping Station – 30 MG. The above works to be completed and commissioned by December 2010

• Mussafah Pumping Station Distribution Network

1. New 1x1200 mm connection for the ICAD Project from the proposed pumping station up to the proposed Connection and Interface point.

2. New 45.00 MGD Capacity Pumping Station for ICAD Mega Projects (Initially) with provisions for future extension.


3. New Reservoirs at Mussafah Pumping Station – 30 MG. The above works to be completed and commissioned by December 2010

B. Al Ain Region

The planned projects that must be completed and commissioned in the Al Ain Region during this period are the following: • N5805: Fujairah Water Transmission System Upgrade

In line with the committed expansion of Fujairah production plant (Phase 2), with additional production capacity of 230MIGD, the following are the anticipated works of the transmission facilities:

1. Lot-1: Qidfa Pumping Station (QPS):

The scope of this lot includes addition of new 5 booster pumps with same performance data as existing. Addition of 5 new main pumps and modification of existing main pumps with new impellers to provide similar hydraulic design as the new main pumps. This arrangement required to pump 230MIGD, which is the proposed total production of Fujairah plant.

2. Lot-2: Pipeline on pressurized section (QPS to IMR):

The scope includes construction of 1XDN1600 CS pipeline, (38 km), parallel to existing 2XDN1600 ones from Qidfa to IMR, and construction of one new steel tank 5MIG storage capacity at IMR.

3. Pipeline on Gravity Section (IMR to TO-09A:

The scope of work includes construction of 1XDN1600mm CS pipeline, (92 km), parallel to the existing twin lines from IMR to tap-off TO-09A. This will enable to transport about 220MIGD of water without constructing intermediate pumping station.

The project is scheduled to be completed by 30/6/2010

• Contract N4381 (construction) - Water Transmission Scheme from Tap off 9A (UWEC) to Al Hayer up to Valve House The purpose of this project is to provide additional supply route (Zone 2) to meet the demand and security of supply to Al Ain region utilizing Fujairah Water Transmission Scheme and to reduce Transco & Disco’s OPEX as a result of bypassing & decommissioning of Pumping Stations and to provide Strategic Storage for Al Ain & Abu Dhabi Regions. The project includes construction/installation of 1xDN1600 Transmission Pipeline from Tap off 9A to to Valve House area and Construction of 2X25MIGD storage at AARC. The project is expected to be completed by August 2010.


C. Western Region Zone The planned projects that are to be completed and commissioned in Western Region during this period are the following: • Mirfa to Muzairah Transmission Upgrade (2010)

1. Madinat Zayed (2010) • Additional 6.0 MGD pump group at year 2010 to supply Summit Reservoir. • New 45.00 Km of 1x900 mm transmission line up to Summit Reservoir and

15.0 km from Summit to Muzairah PS to replace the GRP Lines. 2. Summit Tank Farm (2010)

• New Reservoirs – 4.0 MIG for local distribution. 3. Muzairah Tank Farm (2010)

• Additional 6.0 MGD pump group to supply Liwa East. • New 1x600 mm transmission line up to Interface point supplying Liwa East

(Based on ADDC proposed new Pipeline). • Additional New Reservoirs – 10.0 MIG.

4. IPS-1 (2010) • Proposed 1.5 MG tank at IPS-1 (2010). • Additional 8.3 MGD new pump similar to existing pump group.

• N6045: Upgrading of Shuweihat WTS:

With the commissioning of the Shuweihat Phase 2 Plant during this Year, the following are the major systems requirements that must be completed during the Year in the Region to facilitate the proper evacuation of the new or additional water capacities towards its neighboring Region particularly to Al Ain and the Abu Dhabi Island. 1. Additional four (4) pump units same as existing (4x30 MIGD) at Shuweihat P&DP. 2. Additional two (2) pump units with capacity of 30 MIGD at Mirfa Intermediate

Pumping Station, similar to the existing pumps, to be utilized for evacuation of additional production at Shuweihat plant towards Abu Dhabi Island and Al Ain region.

The proposed project should be completed before November 2010

D. Northern Emirates The major Project whose scope covers the entire Northern Emirates that will be completed during this year is:

• Fujairah Local Distribution Supply from the Fujairah Power and Desalination

Plant (Zone 1- Sudah Area, Zone 2 - Fujairah City, Zone 3 - Al Hayle Industrial areas and Free Zone) A. Phase 1 (2011) 1. Installation of Transmission lines:


• 1xDN 900 from Qidfa PS up to the last Bulk Consumer of Zone 1 (10.70 km) • 1x DN 800 from the last Bulk Consumer of Zone 1up to Zone 3 proposed Tank (22.8

Km). • 1x900 mm Pipeline from Qidfa to 2x600mm & 1x400mm ACP • Installation of Supply Lines to the Storage Tanks at Zone 3 (Al Hayle Industrial

Areas) with 800mm (1.0 km). 2. Construction of Steel Storage tanks for each Zone: • Zone 2 (Fujairah City & Environs), By FEWA • Zone 3 (Al Hayle Industrial Areas) , 2x5.0 MIG 3. Pumping Stations • Construction of a Pumping station at Qidfa PS with a capacity of 20.0 MGD for the

supply to Zones 1 and 3. • Construction of a Pumping station at Qidfa PS with an Initial capacity of 15.0 MGD

for the supply to Zones 2 and the consumers between Qidfa and Fujairah City. 4. Provisions for connection and Interface arrangements. 5. Provisions for PRV’s, Valves, etc. and other associated Civil Works. The proposed project should be completed before December 2010

4.2.4 SYSTEMS TOPOLOGY OF YEAR 2011 During this year Shuweihat S2 will be commissioned with an additional capacity of 101.0 MIGD accordingly, the system will have a total available production of about 868.0 MIGD while the overall demand of the Emirates will rise to about 846.0 MIGD. This would mean a system-wide shortfall of about -32.0 MIGD.

A. Abu Dhabi Region

• No major systems development works is expected to be completed during this Year in this Region.

B. Al Ain Region

The planned projects that must be completed and commissioned in the Al Ain Region during this period are the following: • N6139; Al Ain Water Distribution network

The proposed project will provide the total requirement of Al Ain Region on a long term basis with the complete removal of a number of existing terminal stations namely Al Dhama, Al Khabisi, Al Maquam, Zakher, Jabel Hafeet Base, Power House, Zoo, Sarouj and Military. The existing transfer Pump at Al Ain reception will also be decommissioned as a result of this project. The scope of work includes the following:

AAR Pump Group 1 (PS-1).

1. Pumping Station with a capacity of 81.43 MGD at AARC to supply the distribution area of Al Maquam PS, Zakher PS, Al Wagan, Jabel Hafeet and GIC.

2. 22.00 Kms of DN 1 x 1600 pipeline from Al Ain Reception to Zakher Area.


3. 3.50 Kms of DN 1 x 1200 pipeline from Zakher Area to the connection point supplying Jabel Hafeet.

4. 5.70 Kms of DN 1 x 1000 pipeline from Jabel Hafeet Connection Point to the proposed Al Wagan Terminal Station.

5. 2.90 Kms of DN 1 x 700 pipeline from Al Wagan Terminal Station to GIC Area. 6. 5.40 Kms of DN 1 x 1000 supply line to Al Maquam Palace, Shuaiba farms and

Zakher. 7. 3.80 Kms of DN 1 x 400 supply line to Jabel Hafeet.

AAR Pump Group 1 (PS-2).

1. Pumping station with a capacity of 101.00 MGD at ARRC to supply Power House, Zoo, Sanaiya, Al Natlah, Sarouj, Military, Dhaher, Mezyad and Umn Ghaffa.

2. 13.10 Kms of DN 1 x 1600 pipeline from Al Ain Reception up to Power House (TO-9A pipeline) area.

3. 17.00 Kms of DN 1 x 1600 pipeline from Mezyad Area to Umn Ghaffa area. 4. 50.00 MIG capacity Storage tanks @ Umn Ghaffa Area. Expected completion by May 2011

• Contract N-6137 “Al Wathba to Al Ain Water Transmission System The proposed project will provide the needed water supply to Al Ain Region from Shuweihat utilizing the existing DN1x1600 pipeline from Mirfa via Mussafah to Unit IV PS. The scope of the project includes the following: 1. 40.00 MIG Storage tanks @ Unit V Pump Station 2. 82.10 MGD Pump Station at Unit V tank farm. 3. 125.00 Kms of DN 1 x 1600 pipeline from Unit V Pump Station to Al Ain Reception. 4. 12.0 km x DN1600 DI Pipeline from upstream of Unit IV PS to new Unit V PS. 5. 4.0 km x DN800 DI Pipeline from the existing DN 800 Pipeline of Al Wathba Palace

to Unit IV until Unit V. 6. 28.00 Kms of twin DN1600 pipeline from Tap-off 12 -FWTS to Al Ain Reception

(ARRC). 7. 75.00 MIG Capacity Storage tanks @ Al Ain Reception The project is scheduled to be completed by January 2011

C. Western Region Zone

The planned projects that must be completed and commissioned in the Western Region during this period are the following: • Commissioning of Shuweihat Phase 3 - 100.00 MIGD, the following are the Major

system requirements: 1. New additional Reservoirs at Shuweihat – 100.00 MIG. (To be implemented by the new IWPP). 2. New pumping station with a capacity of 115.0 MIGD at Shuweihat P&DP.


3. Construction of 1x1600mm CS from Shuweihat New PS up to Mussafah and Unit IV Pumping Stations for a Total length of 241.0 km. Provisions for a tap off connection to Mirfa IPS PS (SWTS).


The project must be completed before the end of December 2011 to be in line with the commissioning of Shuweihat Phase 3 by 2012.

4.2.5 SYSTEMS TOPOLOGY OF YEAR 2012 During this year, the system will have a total available production capacity of 969.0 MIGD brought about by the commissioning of the Shuweihat Phase 3 of 101.0 MIGD capacity, the overall demand will reach to about 952.0 MIGD, leading to an overall surplus of about 17MIGD.

A. Abu Dhabi Region

The planned projects that must be completed and commissioned in the Region during this period are the following: • Taweelah Pumping Station

1. New 1x1200mm Pipeline Connection for KPIZ New development from the Taweelah Common Discharge Header with the Interface after the Pump Station.

The above works to be completed and commissioned by December 2012.

B. Al Ain Region

No major systems development works is expected to be completed during this Year in this Region.


The planned projects that must be completed and commissioned in the Region during this period are the following:

1. IPS-2 Pumping Station • Proposed 13.50 MG tank at IPS-2 for Habshan and Abu Hasa.

4.2.6 SYSTEMS TOPOLOGY OF YEAR 2013 During this year, the system will have a total available production capacity same as of the previous year of 969.0 MIGD, the overall demand will reach to about 1000.0 MIGD, leading to an overall shortfall of about -31.0 MIGD.


A. Abu Dhabi Region


B. Al Ain Region



No major systems development works is expected to be completed during this Year.

SYSTEM TOPOLOGY (2008-2013) SCHEMATIC DIAGRAM (attached at the end of this Chapter).

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Abu Dhabi

Dubai

Sharjah

Fujairah

Ras Al Khaimah

Ras Al Khaimah

Umm Al Quwain

DELMA IS.

ABU DHABI EMIRATES WATER TRANSMISSION NETWORK LEGEND:

EXISTING POWER & DESALINATION PLANT

EXISTING PUMPING STATION

EXISTING PIPELINES

UNDER CONSTRUCTION TRANSMISSION PIPELINES

ADDC ASSETS

SHUWEIHAT PDP

SIR BANIYAS IS.

JEBEL DHANA


(MIRFA)

WESTERN REGION

IPS 1

IPS 2

MADINAT ZAYED PS

SUMMIT RES

MUZAIRA PS

CENTRAL REGION


UNIT II

SHOBAISHI PS

AJBAN PS

SWEIHAN PS

TAW PDP

MUSSAFAH PS

EASTERN REGION

AAR PS

MARKHANIA PSKHABISI PS

HILLI PS

SAROUJ PS

AL AIN REGION

FUJAIRAH PDP

SILA

PROPOSED PUMPING STATION REINFORCEMENT

EXISTING WATER TRANSMISSION SYSTEM and PROPOSED TRANSMISSION FACILITIES

PROPOSED TRANSMISSION PIPELINES

PROPOSED / UNDER CONST. POWER & DESALINATION PLANT

YEAR 2008

UNIT VUNIT IV

UNIT III

UAN PDP

DRAWING NO. 6A:TRANSMISSION FACILITIES DETAILS

TOTAL P&DP CAPACITY (MIGD) = 651TOTAL NO. OF PS = 51TOTAL PS CAPACITY (MIGD) = 2019TOTAL LENGTHS OF PIPELINES (KM) = 1774 TOTAL NO. OF RESERVOIRS = 85TOTAL CAPACITY OF RESERVOIR (MIG) = 455

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Abu Dhabi

Dubai

Sharjah

Fujairah

Ras Al Khaimah

Ras Al Khaimah

Umm Al Quwain

DELMA IS.


SHUWEIHAT PDP

SIR BANIYAS IS.

JEBEL DHANA


(MIRFA)

WESTERN REGION

IPS 1IPS 2

MADINAT ZAYED PS

SUMMIT RES

MUZAIRA PS

CENTRAL REGION


UNIT II

SHOBAISHI PS

AJBAN PS

SWEIHAN PS

TAW PDP

MUSSAFAH PS

EASTERN REGION AAR PS


HILLI PS

SAROUJ PS

AL AIN REGION

FUJAIRAH PDP

SILA


YEAR 2009

UNIT VUNIT IV

UNIT IIIUAN PDP

DRAWING NO. 6B:TRANSMISSION FACILITIES DETAILS

TOTAL P&DP CAPACITY (MIGD) = 685TOTAL NO. OF PS = 54TOTAL PS CAPACITY (MIGD) = 2120TOTAL LENGTHS OF PIPELINES (KM) = 1914TOTAL NO. OF RESERVOIRS = 95TOTAL CAPACITY OF RESERVOIR (MIG) = 483



EXISTING PIPELINES


ADDC ASSETS




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Abu Dhabi

Dubai

Sharjah

Fujairah

Ras Al Khaimah

Ras Al Khaimah

Umm Al Quwain

DELMA IS.


SHUWEIHAT PDP

SIR BANIYAS IS.

JEBEL DHANA


(MIRFA)

WESTERN REGION

IPS 1IPS 2

MADINAT ZAYED PS

SUMMIT RES

MUZAIRA PS

CENTRAL REGION


UNIT II

SHOBAISHI PS

AJBAN PS

SWEIHAN PS

TAW PDP

MUSSAFAH PS

EASTERN REGION

AAR PS


HILLI PS

SAROUJ PS

AL AIN REGION

Al HAYER

FUJAIRAH PDP

SILA


YEAR 2010

UNIT VUNIT IV

UNIT IIIUAN PDP

TRANSMISSION FACILITIES DETAILSTOTAL P&DP CAPACITY (MIGD) = 817TOTAL NO. OF PS = 60TOTAL PS CAPACITY (MIGD) = 2566TOTAL LENGTHS OF PIPELINES (KM) = 2131TOTAL NO. OF RESERVOIRS = 102TOTAL CAPACITY OF RESERVOIR (MIG) = 531

DRAWING NO. 6C:



EXISTING PIPELINES


ADDC ASSETS




PROPOSED STORAGE RESERVOIRS REINFORCEMENT

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Abu Dhabi

Dubai

Sharjah

Fujairah

Ras Al Khaimah

Ras Al Khaimah

Umm Al Quwain

DELMA IS.


SHUWEIHAT PDP

SIR BANIYAS IS.

JEBEL DHANA


(MIRFA)

WESTERN REGION

IPS 1IPS 2

MADINAT ZAYED PS

SUMMIT RES

MUZAIRA PS

CENTRAL REGION


UNIT II

SHOBAISHI PS

AJBAN PS

SWEIHAN PS

TAW PDP

MUSSAFAH PS

EASTERN REGION

AAR PS


HILLI PS

SAROUJ PS

AL AIN REGION

UMM GHAFFA TANKS

FUJAIRAH PDP

SILA


YEAR 2011

UNIT VUNIT IV

UNIT III

UAN PDP

TRANSMISSION FACILITIES DETAILSTOTAL P&DP CAPACITY (MIGD) = 868TOTAL NO. OF PS = 49TOTAL PS CAPACITY (MIGD) = 2538TOTAL LENGTHS OF PIPELINES (KM) = 2260 TOTAL NO. OF RESERVOIRS = 94TOTAL CAPACITY OF RESERVOIR (MIG) = 640

DRAWING NO. 6D:

Al HAYER



EXISTING PIPELINES


ADDC ASSETS





EXISTING STORAGE RESERVOIRS

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Abu Dhabi

Dubai

Sharjah

Fujairah

Ras Al Khaimah

Ras Al Khaimah

Umm Al Quwain

DELMA IS.


SHUWEIHAT PDP

SIR BANIYAS IS.

JEBEL DHANA


(MIRFA)

WESTERN REGION

IPS 1IPS 2

MADINAT ZAYED PS

SUMMIT RES

MUZAIRA PS

CENTRAL REGION


UNIT II

SHOBAISHI PS

AJBAN PS

SWEIHAN PS

TAW PDP

MUSSAFAH PS

EASTERN REGION

AAR PS


HILLI PS

SAROUJ PS

AL AIN REGION

UMM GHAFFA TANKS

FUJAIRAH PDP

SILA


YEAR 2012

UNIT VUNIT IV

UNIT IIIUAN PDP

DRAWING NO. 6E:TRANSMISSION FACILITIES DETAILS

TOTAL P&DP CAPACITY (MIGD) = 969TOTAL NO. OF PS = 49TOTAL PS CAPACITY (MIGD) = 2711TOTAL LENGTHS OF PIPELINES (KM) = 2260 TOTAL NO. OF RESERVOIRS = 97TOTAL CAPACITY OF RESERVOIR (MIG) = 653



EXISTING PIPELINES


ADDC ASSETS






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Abu Dhabi

Dubai

Sharjah

Fujairah

Ras Al Khaimah

Ras Al Khaimah

Umm Al Quwain

DELMA IS.


SHUWEIHAT PDP

SIR BANIYAS IS.

JEBEL DHANA


(MIRFA)

WESTERN REGION

IPS 1IPS 2

MADINAT ZAYED PS

SUMMIT RES

MUZAIRA PS

CENTRAL REGION


UNIT II

SHOBAISHI PS

AJBAN PS

SWEIHAN PS

TAW PDP

MUSSAFAH PS

EASTERN REGION

AAR PS


HILLI PS

SAROUJ PS

AL AIN REGION

UMM GHAFFA TANKS

FUJAIRAH PDP

SILA


YEAR 2013

UNIT VUNIT IV

UNIT IIIUAN PDP

DRAWING NO. 6F:



EXISTING PIPELINES


ADDC ASSETS






TRANSMISSION FACILITIES DETAILSTOTAL P&DP CAPACITY (MIGD) = 969TOTAL NO. OF PS = 49TOTAL PS CAPACITY (MIGD) = 2711TOTAL LENGTHS OF PIPELINES (KM) = 2260 TOTAL NO. OF RESERVOIRS = 97TOTAL CAPACITY OF RESERVOIR (MIG) = 653

TRANSCO Water Five Year Planning Statement 2009-2013_Approved Issue

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