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Portfolio

Water andWastewater

Page 2 & 3

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Contents

Portfolio

Water andWastewater

Contents

Introduction

Belfast Tunnel

Northern Ireland Watermain Rehabilitation

Dublin Watermain Rehabilitation

Scottish Water Q&S III

Fofanny WTW

Project Alpha

River Strule Abstraction

Wormingford Pumping Station

Aquarius 3 - Mourne WTW

HA to Ramsgreave Pipeline

Mourne Conduit

Domestic Water Metering

Abberton Pipeline

Barrow Outfall

Farrans Contacts

2 & 3

4 & 5

6 & 7

8 & 9

10 & 11

12 & 13

14 & 15

16 & 17

18 & 19

20 & 21

22 & 23

24 & 25

26 & 27

28 & 29

30 & 31

32 & 33

34 & 35

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Introduction

Farrans has earned a sterling reputation as a world-class partner of choice for construction project delivery. We focus on the design and construction of infrastructure for customers who value the highest levels of quality, safety and technical expertise. In our 70-year history, we have delivered landmark projects around the world by engaging an international supply chain alongside our own highly–trained, multidisciplinary project teams.

In Northern Ireland, 90% of the drinking water is treated in municipal facilities designed and built by us. We have developed innovative plant solutions and constructed them in sensitive natural environments, including designated Areas of Outstanding Natural Beauty at Fofanny and Mourne.

Our experience in both the rehabilitation and construction of pipelines extends throughout various regulated utility companies. We continue to work with state-of-the-art technology providers to deliver excellent waste and wastewater solutions to municipal and private customers.

Farrans is an operating division within Northstone (NI) Limited whose activities also include aggregate production, manufacture and supply of quality building materials and utility access chambers. Northstone is a wholly-owned subsidiary of CRH plc. Headquartered in Ireland and with a turnover of over €18billion, CRH operates in 35 countries and employs approximately 75,000 people. CRH is focussed on three closely related core businesses - Primary materials, Value-added building products and Specialist building materials distribution.

WastewaterPortfolio

Water and

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Belfast Tunnel

The Belfast Tunnel is a stormwater management sewer built for the City of Belfast by Farrans in one of Farrans’ most successful strategic joint ventures. It is 9.4km in length with tunnels ranging in diameter from 1.5m to 4.0m connected by overflow weirs to the existing Victorian network.

Working at depths of up to 35m below the city streets, the larger tunnels were constructed using an Earth Pressure Balance tunnel boring machine whilst the smaller bores were formed by pipejacking. We constructed 19 shafts for access to the tunnel with diameters up to 12.5m using jacked caisson methods.

We also worked extensively with the local community to ensure we made a positive contribution, providing walking buses to guide schoolchildren safely through our temporary diversions. We controlled noise using acoustic enclosures and showcased the project on hoardings and through community participation projects.

The downstream Terminal Pumping Station (TPS) is one of the most significant aspects of the scheme. It houses stormwater pumps with a capacity of 16,000 l/sec in a 38m diameter shaft constructed to a depth of 40m in very challenging ground conditions. We used a number of highly specialised techniques to construct the TPS, including diaphragm walling and sprayed concrete excavation support to get to base level and curved jump formwork to cast the walls. The pumps discharge to an outfall and diffuser at the adjacent sea shore.

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WastewaterPortfolio

Water andClientNorthern Ireland Water

Value£120m

Page 8 & 9

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The Northern Ireland Rehabilitation Framework was the first project of its kind in Northern Ireland. Farrans began the work in April 2004, as one of two incumbent contractors in a JV arrangement.

Our role incorporates management of detailed design and modelling, planning, programming, roads authority formal notification (Symology) and liaison, and networks liaison. We are also responsible for HSEQ management, customer notifications, site preparation, pre-chlorination, construction, testing, commissioning, handover and as-built drawings.

To date, we have installed more than 1150km of water pipeline on the contract, 800km by trenchless technology, 9600 service pipe and meter box renewals and 15000 customer contacts. 30 Works Packages out of a total of 72 zones country-wide were subject to first wave high priority renewal.

WastewaterPortfolio

Water andClientNorthern Ireland Water

Value£118 Million

Northern IrelandWatermainRehabilitation

Page 10 & 11

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WastewaterPortfolio

Water and

DublinThe Dublin Regional Watermains Rehabilitation Project, (DRWMRP), was the first regional rehabilitation framework in the Republic of Ireland.Farrans was one of three incumbent contractors and the first to carry out large scale renewal and repair works in 2007.

Our role incorporated planning, programming, roads authority formal notification (T2/T5 system) across eight council areas, authority and networks liaison, and HSEQ management. We were also responsible for customer notifications, site preparation, pre-chlorination, construction, testing, commissioning, handover, H&S files and as built drawings.

Given the densely-populated and heavily trafficked nature of the works location, sensitive works were carried out at night and weekends with adequate supervision and advanced planning. Farrans’ approach to the challenge was to deploy a team of eight professionally qualified staff including civil engineers, performance manager, cost manager, and programmer. To facilitate ease of communication we had a shared office space with the client, Dublin City Council Water Services and Project Manager RPS Water.

Innovative measures introduced for the first time to Dublin included combined pressure & flow analysis via remote GSM logging units, on site pre-chlorination of pipe work, pipe bursting, slip lining and line stopping. Introduction, approval and application of new rehabilitation techniques such as Swage Lining and Rolldown was also instrumental in works. Our shared electronic document management system, Union Square, and the use of key traffic management software was used throughout the project life.

ClientDublin City Council

Value€10.5 Million

RehabilitationWatermain

As a Construction Delivery Partner (CDP) on Scottish Water’s SR10 (2010-2015) programme, our utility and civil engineering teams service Scotland from their hubs in Glasgow and Livingston.

On SR10 Quality and Standards IIIb, we participated in a competitive process to secure work tranches covering the rehabilitation and renewal of water infrastructure in Central and SE Scotland. Working together with Scottish Water, we managed networks of multiple schemes wherein we investigated each new scheme. This involved evaluating the technical, operational and site constraints to select the right rehabilitation technique, coordinate design and implement the solution on the ground.

We also support Scottish Water on their extensive NRSWA programme which entails temporary and permanent diversion of water and sewer infrastructure to support major civil engineering projects including the M80, Borders Rail Link, Airdrie to Bathgate Railway Line and the new Forth Crossing.

To date, we have also completed over £18m of work in an integrated partnership with a MEICA specialist to upgrade and improve 27 water and wastewater treatment sites throughout Scotland, from Aberdeenshire to Dumfries and Galloway.

ScottishWater Q&S III

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WastewaterPortfolio

Water andClientScottish Water

Value£151 Million

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WastewaterPortfolio

Water andClientNorthern Ireland Water

Value£15.7 Million

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WTWFofanny

The £15.7m Fofanny WTW project was constructed to treat up to 52ML of water per day from three different sources - Fofanny Dam, Spelga Dam and Lough Island Reavy.

Farrans undertook the project in 2003 and carried out the bulk excavation of 30000m3 of boulder clay and rock which was stored onsite for reuse in backfilling the new works. We were responsible for constructing a Buried Reinforced Concrete Structure involving 9000m3 of structural concrete, a pipe work gallery, sludge treatment and press area, as well as a two-storey office and administration block. The scope of works also included installing 1.7km of triple main pipe work and a chemical spillage collection tank, as well as two Petrol Interceptor Tanks, general storm drainage, a septic tank and associated foul drainage from the Administration block. We also constructed a new courtyard and carpark area, consisting of 1000m2 of 200mm concrete road slab. Ensuring that works were sympathetic to their surroundings, the site was landscaped, with over 10000 heathers and 6500 trees planted. The work was carried out to the complete satisfaction of our Client, Northern Ireland Water.

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ProjectAlpha

Project Alpha was the first UK PPP for potable water supply. The £57 million project required the design, build, finance and operation of four existing water treatment works for a period of 25 years. We carried out the works as part of Dalriada Water Limited - a partnership between Yorkshire Water, AECOM, and Farrans Construction.

Upgrading the treatment works, which produce 45% of Northern Ireland’s potable water, involved a capital investment of £110m over a two year construction phase. Given our Value Engineering, a range of similar projects, expertise on Farrans was able to contribute significant design innovation to further client requirements. For example a fifth new build Water Treatment Works (Forked Bridge WTW’s) was eliminated. Instead, the supply volume was fulfilled by constructing a new cross country pipeline from Castor Bay WTW’s to Forked Bridge WTW’s. The pipeline totalled 16km of 600mm diameter ductile iron pumping mains and was laid in fields, highways and private lands.

Two strategic linkmains from Coleraine to Limavady and Ballymoney (44km) have been included within the scope of the scheme which was designed, built and financed by Dalriada Water Limited, and then handed over to NIWL.

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WastewaterPortfolio

Water andClientNorthern Ireland Water

Value£57 Million

Page 18 & 19

River Strule Abstraction

The Strule Abstraction Project involved the design and construction of the new abstraction point and pumping station, situated at the bank of the River Strule. Water is now abstracted from the middle of the river and pumped through 7.2km of 500mm PE pipeline to Derg water treatment works. Farrans was appointed as Principal Contractor for the £4million project. The three main civil work elements included:

In-stream WorksFarrans carried out the refurbishment of the existing weir, constructing the abstraction point in the middle of the River Strule with two 600mm dia pipes connecting to the pumping station. We also constructed both the head-wall and intake screens.

Pumping StationFollowing excavation works at the Pumping Station, we constructed a new wet well and access road. PipelineWe were responsible for constructing 7.2km of 500mm PE pipeline to the existing Derg treatment works. This included trenchless crossings of the River Derg, A5 Omagh-Strabane Road and Derg WTW Bund. We also provided a connection to the existing raw water inlet to Derg WTW.

WastewaterPortfolio

Water andClientNorthern Ireland Water

Value£4 Million

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WormingfordPumping Station

The Wormingford Pumping Station was constructed to abstract raw water from the River Stour and pump to the new Abberton Break Water Tank (BPT), where it gravitates to the Abberton Reservoir.

The works were comprised of a river inlet and pumping station substructure constructed inside cofferdams, a pumping station superstructure and associated site infrastructure works. It was necessary to complete MEICA installation works at the pumping station and place controls on the pipeline.

The project, which was completed to the satisfaction of Northumbrian Water, has the capacity to pump 120ML per day.

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WastewaterPortfolio

Water andClientNorthumbrian Water Limited

Value£4.1 Million

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Aquarius 3 -Mourne WTW

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WastewaterPortfolio

Water andClientNorthern Ireland Water

Value£20 Million

Aquarius 3 involved both the design and construction of a 155ML per day Dissolved Air Flotation (DAF) Chemical Treatment Plant. It is the largest WTW to be built in NI in the last 30 years and incorporates the latest technology to deal with cryptosporidium.

The treatment works supply 50% of the water to Greater Belfast and County Down to the latest EU standards. Farrans, in association with their Civil Sub-consultants McAdam Design, were responsible for obtaining planning permission during the design development stage for the 155ML per day plant.

Within the design development stage, we were fully engaged in value engineering and risk workshops. This brought many benefits, including savings on the target cost and greater engagement with the end user.

The civil works involved in the diversion of the operational trunk main from Silent Valley to Belfast required extensive liaison with DRD Water Service Operations. Following this diversion, Farrans completed the excavation of 30,000m3 of rock and the construction of a DAF plant, chemical house, filter cells, administration block, sludge treatment building and extensive landscaping to help blend the works into the landscape. The works required 10,000m3 of concrete, 1000t of reinforcing steel, 500t of structural steel and 7000m2 of roof cladding.

The project came in 10% under the target cost. This allowed the client to proceed with a new 2ML service reservoir and a new 6ML command reservoir.

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HA to

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The 16 month, £6 million HA to Ramsgreave project included the design and installation of 9.5km of 400-500mm dia pipeline, mainly laid in fields from Martholme to Ramsgreave.

Farrans carried out the design and installation of works across these main elements:

Martholme WTW to Ramsgreave SR Pipeline We installed a new set of duty/standby pumps at Martholme WTW to pump water through a new rising main to a new Break Pressure Tank (BPT) on the pipe route at Height House Farm. From the BPT, water now gravitates to Ramsgreave SR and connects to existing outlet pipework from the reservoir. A new rising main includes chemical dosing/mixing, water sampling, pressure and flow control equipment. Two cross connections were made to the existing pipelines, in order to provide security of supply. A telecoms link was placed along with the pipeline to provide connectivity between the three sites.

Accrington Pump Replacement and MCC ModificationsThree existing pump sets were removed and replaced with two new pumps. Modifications to the existing MCC were also carried out.

Martholme WTW Chlorine System ModificationsWe upgraded the existing chlorine storage and dosing systems, including structural and safety upgrades to the existing building.

WastewaterPortfolio

Water andClientUnited Utilities

Value£6 Million

PipelineRamsgreave

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MourneConduit

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WastewaterPortfolio

Water andClientNorthern Ireland Water

Value£26.5 Million

The Mourne Conduit was a design and build contract, replacing the existing 35km conduit from Spelga Dam to Belfast with welded steel pipes (1200mm and 900mm diameter) in roads, verges and fields. Also included in the contract was a 6 bay pumping station with 140ML per day through a 60m head, as well as the re-valving and refurbishment of existing service reservoirs, 0SEC plants and energy recovery buildings.

The Mourne Conduit was originally constructed in 1901 and extends 56km from the Silent Valley in the Mourne Mountains to the Knockbracken Reservoir between Carryduff and Purdysburn. The existing conduit gravitates with a maximum flow of 147ML per day at the Silent Valley through tunnels, siphon pipes and arched concrete conduits from the Mourne Mountains to Belfast.

A 140ML per day pumping station was constructed between Dornan’s Well and Cussack’s No. 1 Well to pump water to a 4ML capacity Dunmore Mountain Break Pressure Tank(BPT). Water then flows to Belfast and water connections were also provided to the existing off takes with new connections made under the contract. Flow in the section of the pipeline downstream of the Dunmore BPT is now controlled using Hydraulic Control Valves to ensure that the pipe remains full over its entire length at all times. Pressures at the six off takes are now controlled using PRVs which were provided under the contract.

Other works included the construction of two smaller pumping stations 10ML per day and 30ML per day at off takes and the refurbishment of the Purdysburn Storage Reservoir at Belfast.

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DomesticWater Metering

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The Irish Water Domestic Metering Programme is divided into 8 regions. Farrans are undertaking meter installation and commissioning for the County Dublin Region, comprising the local authority areas of Fingal, South Dublin and Dun Laoghaire/ Rathdown. This region includes an estimated 195,000 meter installations to serve a population of approximately 750,000 residents.

Farrans undertake all works associated with the meter installation process including site survey, design, traffic management design, supply of AMR meters and boundary boxes, construction, installation, commissioning and AMR testing. The project uses the latest technology for remote works management with all field work scheduled, co-ordinated and reported on via a Works Management Database and Mobile Field Devices. This ensures access by all project personnel to accurate real time information on the progress of the works. It eliminates duplication and lengthy data verification tasks.

Boundary box installation works involve an estimated 195,000 excavations and connections to existing water pipework to individual domestic properties. Excavation techniques include the use of Vacuum Excavation as well as traditional ‘hand digging’ methods. Installation team sizes range from 8 to 12 personnel.

Production levels for the meter installations will peak at approx. 2250 per week, utilising 20 installation teams. Site work commenced in October 2013 and is planned for completion in mid-2016.

WastewaterPortfolio

Water andClientIrish Water

Value€50 Million

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AbbertonPipeline Scheme

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WastewaterPortfolio

Water andClientNorthumbrian Water Limited

Value£28 Million

The Abberton Scheme was the largest water infrastructure project in the UK in 2011/12. It was delivered by Northumbrian Water Limited in conjunction with the Environment Agency and now provides piped capacity for an extra 120ML per day to be transferred from East Cambridgeshire to Essex.

Farrans delivered the Lot 3 Pipelines and Lot 4 Wormingford Pumping Station Schemes under the NEC II Option C and Option A Forms of Contract respectively. We constructed approximately 30kms of 1200dia and 3kms of 1000dia welded steel pipes cross country from Kirtling Green to Wixoe (South of Newmarket) and from Wormingford to Abberton (near Colchester, Essex). We also constructed and commissioned a 2.5ML reinforced concrete break pressure tank at Wormingford and an outlet structure at the Abberton reservoir. There were several trenchless crossings along the pipeline route including 150m of 1500dia under the A12 and Network Rail Colchester to London line at the Stanway Tunnel which we delivered utilising a Herrenknecht Earth Pressure Balancing Tunnelling Machine.

The project has increased the storage capacity of the Abberton reservoir from 26,000 to 40,000ML and will secure water supply to the greater Essex and East London areas for the next 50 years.

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WastewaterPortfolio

Water andClientUnited Utilities

Value£6 Million

BarrowOutfall

The Barrow Outfall Relocation project is a £6million project in the seaport town of Cumbria, with the scope of works including the construction of a new tidal pumping station and an outfall pipeline.

Farrans was awarded the contract for the design and installation of the new sewer outfall which extends 2400m across an inter-tidal area in Barrow-in-Furness. The pipe is being laid across salt marshes in the intertidal zone by an open-cut method of working whilst the last 150m is being laid from marine floating equipment. The new storm water pumping station is being constructed on the existing wastewater treatment site.

Works on the £6million project are complex, given that the site has been identified as a Special Area of Conservation (SAC), Special Protection Area (SPA), Site of Special Scientific Interest (SSSI) and a Ramsar (wading birds) protected site.

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FarransContacts

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WastewaterPortfolio

Water andElectronic Mail:construct@farrans.com

Website:www.farrans.com

EnglandNew Cambridge HouseBassingbourn RoadLitlington, RoystonCambridgeshireSG8 0SS

Telephone: +44 (0) 1763 850600

ScotlandOakbankMid CalderLivingstonWest LothianEH53 0JS

Telephone: +44 (0) 1506 882588

Northern Ireland99 KingswayDunmurryBelfastBT17 9NU

Telephone: +44 (0) 28 90551300

IrelandRosemount Business ParkBallycoolinBlanchardstownDublin 11

Telephone: +353 (1) 1793 0800

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Portfolio

Water andWastewater

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Portfolio

Water andWastewater