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AECOM

AECOM is one of the world’s leading multi-disciplinary engineering consultancy firms working for the water industry worldwide.

Ranked third in the ENR rankings we work across all aspects of water infrastructure and delivery systems to ensure cost effective and quality design for all project elements. We are advising on the strategic implications of climate change and sustainability on water infrastructure and resources management as well as design new build facilities and rehabilitation of older assets to meet the needs of water providers across the UK.
We provide framework support as well as advising on the implications of new technologies, energy management and investments for clean and wastewater processes.

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Durleigh WTC (2023)

In 2019, Wessex Water launched a £51 million project to upgrade the Durleigh Water Treatment Centre (WTC) in Somerset, which had reached the end of its operational life. This project was crucial in maintaining the delivery of high-quality drinking water to a population of 44,500 and was part of the company’s long-term water supply strategy […]

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Alderney WTW (2023)

In 2015, Bournemouth Water was acquired by Pennon Group, who already owned South West Water (SWW). Alderney WTW, located in the north of Bournemouth, is a strategically important water treatment works that supply high quality drinking water to approximately 375,000 customers – nearly 75% of the homes and businesses in Bournemouth Water’s operational area. Alderney […]

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Layer to Langford Pipeline (2023)

Essex and Suffolk Water, part of Northumbrian Water Ltd, supplies drinking water to 794,000 properties. Maintaining a supply to those customers requires the distribution of up to 670 Ml/d of high-quality drinking water. In Essex, the two primary treatment works are Hanningfield WTW, a physio-chemical works near Chelmsford and Layer WTW, a biological works, near […]

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Faughan Raw Water Pumping Station (2022)

Faughan Raw Water Pumping Station (RWPS) is located adjacent to the River Faughan and abstracts water from the river. It provides screening by means of bar and band screens before pumping the water via a 30 inch steel raw water pumping main to Carmoney Water Treatment Works (WTW). Carmoney WTW has a minimum daily output […]

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Drumaroad Clear Water Basin (2022)

Drumaroad Water Treatment Works (WTW) supplies water to many households throughout Northern Ireland. A 2013 report commissioned by NI Water identified the need for increased potable water storage facilities within the Drumaroad Supply Zone to reduce the risk of water shortages under certain network situations. As part of a £13m investment to modernise the existing water infrastructure […]

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Glasgow’s Smart Canal 2022

The North Glasgow Integrated Water Management System (NGIWMS), Glasgow’s Smart Canal, has created a pioneering drainage system, incorporating the historic Forth and Clyde Canal to provide one of the first autonomous and dynamically managed surface water systems in the world. The new system is supporting the regeneration of an area in north Glasgow enabling the […]

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Ravenhill Avenue, Belfast, Flood Alleviation Project (2022)

Ravenhill Avenue is located in south Belfast, close to the city centre. It is a densely populated residential area which has seen recent development of historically industrial sites. The sewer infrastructure in Ravenhill Avenue dates back to the early 20th century, and is therefore in poor condition and undersized to deal with today’s flows. Unfortunately, […]

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Donemana WwTW (2021)

Donemana Wastewater Treatment Works (WwTW), located on the banks of the Burn Dennet River and at the foothills of the Sperrins in Co. Tyrone, serves the Donemana area – the largest of the thirteen villages in the Derry City and Strabane Council area. The existing works had been in service for almost 50 years with […]

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Newpoint Terminal WwPS (2021)

Newry is situated some 35 miles south-west of Belfast at the northernmost end of Carlingford Lough, where the Clanrye River/Newry Estuary enters the sea. Newpoint Wastewater Pumping Station (WwPS), situated off the Warrenpoint Road, is the terminal pumping station for the city. The WwPS receives incoming flows from the greater Newry and Carlingford area at […]

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Durleigh WTC (2021)

Wessex Water’s £50m project to upgrade Durleigh Water Treatment Centre (WTC) in Somerset is progressing on programme and within budget, despite some particular challenges posed by the Covid-19 pandemic. Work at the site near Bridgwater started in 2019. It is the largest single-value scheme delivered by Wessex Water’s Engineering & Sustainable Delivery (ESD) department and […]

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Thames Tideway Tunnel - Central Contract - Albert Embankment Foreshore (2021)

The Thames Tideway Tunnel project will upgrade London’s Victorian sewer system, which was developed by Sir Joseph Bazalgette in the mid-1800s for a population of 4 million people. Now with over 8 million Londoners, the system capacity, around 6mm per hour rainfall in the catchment, has been exceeded and the discharges of mixed water through […]

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Thames Tideway Tunnel - Central Contract - Falconbrook PS CSO Shaft (2021)

The Tideway project is a new £3.8 billion, 25km long combined sewage storage and transfer system currently under construction in London. The project is divided into three design and build contracts: West, Central and East. The scope of works of the Central Section, the largest portion of the project at over half its length, includes […]

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Thames Tideway Tunnel - Central Contract - Blackfriars Bridge Foreshore (2021)

The Tideway project is a new £3.8 billion, 25km long combined sewage storage and transfer system currently under construction in London. The project is divided into three design and build contracts: West, Central and East. The scope of works of the Central Section, the largest contract, includes 12.7km of 7.2m internal diameter tunnel and eight […]

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Thames Tideway Tunnel - Central Contract - Junctions (2021)

The Tideway Tunnel is a new 25km long combined sewage storage and transfer system that will help protect the ecology of the River Thames by tackling the problem of overflows from London’s ageing sewers. The Central Section consists of eight work sites each incorporating a drop shaft, as well as two tunnel drives. Of the […]

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Thames Tideway Tunnel - Central Contract - Main Tunnel Secondary Lining (2021)

In the heart of London, the largest project in the UK water industry is underway. Tideway is a new combined storage transfer system, commissioned to provide London’s sewage network with additional capacity and prevent pollution of the River Thames. The colossal scheme consists of a 25km TBM bored tunnel with numerous shafts, associated outfalls and […]

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Thames Tideway Tunnel - Central Contract - Main Tunnel Primary Lining (2021)

The Tideway Project is a 25km long combined sewage storage and transfer system along the River Thames in central London, UK. The project is split into three design and build contracts with the limits of each contract determined primarily by geology along the alignment. The contract for the Central Section, the longest and most challenging […]

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Thames Tideway Tunnel - Central Contract - Vortex Pipes (2021)

The Thames Tideway Tunnel is a major infrastructure project that will intercept the existing London sewerage system, through a 25km-long tunnel and connection tunnels from Acton in West London to Abbey Mills in East London. The tunnel has a finished internal diameter of 7.3m, starting at a depth of 30m below ground until reaching a […]

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Durleigh WTC (2020)

Durleigh Water Treatment Centre is located approximately 2km west of Bridgwater, Somerset and is Wessex Water’s second largest surface water treatment works serving a population of 44,500. The site was originally designed to treat up to 28.5 Ml/d, with water drawn down from the 959,000m3 Durleigh Impounding Reservoir. Raw water quality has deteriorated in recent […]

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Thames Tideway Tunnel - Central Contract - Falconbrook Pumping Station (2020)

Falconbrook Pumping station (FALPS), located in the London Borough of Wandsworth, is the most westerly site on the Thames Tideway Central Section. FALPS is an active pumping station, discharging approximately 700,000m3 of untreated sewage directly into the River Thames each year via six storm pumps. The current station has a combined discharge volume rate of […]

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Thames Tideway Tunnel - Central Contract - Chelsea Embankment Foreshore (2020)

The Chelsea Embankment Foreshore (CHEEF) site is one of the eight main sites in the Central Section of the Thames Tideway Tunnel. The site is located within the Royal Borough of Kensington and Chelsea and will allow for the diversion to the main tunnel of approximately 280,000m3 of sewage that currently discharges into the river. […]

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Thames Tideway Tunnel - Central Contract - Marine Works (2020)

The Thames Tideway Tunnel is a new super sewer that will intercept, store and convey the CSO discharges to Beckton STW for treatment. The project is divided into three main work contracts: West, Central and East. The Ferrovial Construction and Laing O’Rourke joint venture (FLO JV) has been appointed as principal contractor for the Central […]

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Thames Tideway Tunnel - Central Contract - Albert Embankment Foreshore (2020)

The Thames Tideway Tunnel is a major tunnelling project designed to mitigate the large-scale pollution problem involving the discharge of sewage into the River Thames. The project consists of a 25km long TBM tunnel under the river along with numerous shafts, culverts and connections tunnels constructed using sprayed concrete lined techniques. These will be used […]

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Ardsbeg WTW (2020)

Ardsbeg Water Treatment Works (WTW) is located in a remote area in the north of Co. Donegal in Ireland and treats water from a lake source to serve local villages of Gortahork and Falcarragh as well as rural farms and dwellings. The WTW was originally built in the 1960s and was modified in 2003. However, […]

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Lough Fea Clear Water Basin South (2020)

Lough Fea Water Treatment Works supplies water to approximately 24,000 Northern Ireland Water customers, with the Lough Fea Clear Water Basin South supplying over 10,000 people in Cookstown and surrounding rural areas. A 2013 report commissioned by NI Water identified the need for increased potable water storage facilities within the Lough Fea Supply Zone to […]

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Chlorine and Sulphur Dioxide Gas Removal (2019)

In 2016 Yorkshire Water made the strategic decision to remove all chlorine and sulphur dioxide gas from its Water Treatment Works. This formed part of the Yorkshire Water Safety Improvement Plan as the existing toxic gas disinfection systems were becoming non-compliant with Health and Safety regulations and posed a potential significant risk to employees and […]

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Manor Road Park River Restoration Project (2019)

Affinity Water (AW) is the largest water-only supply company in the UK, providing on average 900 million litres of water each day to a population of more than 3.6 million people in parts of Bedfordshire, Berkshire, Buckinghamshire, Essex, Hertfordshire, Surrey, the London Boroughs of Harrow and Hillingdon and parts of the London Boroughs of Barnet, […]

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Quay Road Charlestown DG5 Flooding Scheme (2019)

Situated on the outskirts of St Austell on the south coast of Cornwall, Charlestown Harbour is an unspoilt, original Grade II Listed Harbour. Used recently as a key location for the filming of the BBC’s remake of the 1970s hit series Poldark, it has also been used for Dr Who, Tim Burton’s Alice in Wonderland, […]

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Ayrshire Resilience Scheme: Phase 2 Highlees (2018)

During investment period 2016/17, Scottish Water commenced the first phase of construction on a £120m investment project known as the Ayrshire Resilience Scheme, designed to improve the resilience of the drinking water network throughout much of Ayrshire and parts of East Renfrewshire. Once complete, this scheme will benefit more than 200,000 Scottish Water customers. Caledonia […]

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Deephams STW - A630 Major Upgrade (2018)

Thames Water’s Deephams Sewage Treatment Works (STW) is located in Edmonton, North London and treats a 989,000 population. Three drainage catchment areas of Lea Valley, High Barnet and Tottenham flow to the works, the ninth largest plant in the UK. The original effluent treatment process was built between 1956-1966 and had been updated at various […]

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Nine Elms, Battersea Growth & SuDS (2018)

The Nine Elms redevelopment area within Battersea includes 21,000 new dwellings, office, leisure and retail space creating 8000 new jobs including the new US Embassy, a relocated New Covent Garden Market site and the Northern Line extension. An integrated water management study completed by Thames Water (TW) in partnership with the Greater London Authority, ARUP […]

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South West Water Shellfish Waters NEP AMP6 Programme (2018)

The 2010 Shellfish Waters Directive placed a new obligation on South West Water (SWW) to endeavour to meet the Shellfish Waters Regulations ‘Guideline’ Standard. (Class B). The Shellfish Waters (SFW) programme of work was to meet legislative requirements to protect or improve designated shellfish waters to support shellfish life and growth, contributing to the quality […]

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South Edinburgh Service Resilience (2018)

Caledonia Water Alliance (CWA) has been tasked with improving the water infrastructure network within Edinburgh and the Lothians, in partnership with Scottish Water. The Scottish Water project driver is CS16WR for Water Systems Resilience; associated with improving resilience of network supply. The project objective is to provide resilience in the wider water distribution network linked […]

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Thames Tideway Tunnel - Central Contract - Overview (2018)

Thames Tideway Tunnel is the largest water infrastructure project currently under construction in the UK and will modernise London’s major sewerage system, the backbone of which dates back to Victorian times. Although the sewers built in the mid-19th century are still in excellent structural condition, their hydraulic capacity was designed by Sir Joseph Bazalgette for […]

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Irvine Bypass Trunk Main (2017)

An existing, but ageing, 33”-36” diameter potable water main supplying over 40,000 customers in Ayrshire was identified by Scottish Water as requiring replacement. The existing pipeline was to be replaced with a new pipeline constructed of polyethylene (PE) pipe sections butt-fusion welded into 200m long pipe strings. Caledonia Water Alliance (CWA), a joint venture between […]

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Affinity Water Pesticide Removal (2017)

Affinity Water’s largest water treatment works (WTW) is being upgraded as part of their AMP6 business plan to ensure they continue to provide a robust treatment solution for the removal of pesticides from water abstracted from the River Thames. The scope of the works is to increase the granular activated carbon empty bed contact time […]

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Ayrshire Resilience: Phase 1 (2016)

Scottish Water has recently commenced the first phase of construction on a £120m investment project designed to improve the drinking water network throughout much of Ayrshire and parts of East Renfrewshire. The project involves the installation of a new large diameter strategic water main from Newton Mearns continuing down towards the Fenwick/Waterside area and finally […]

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North Tawton STW (2016)

South West Water (SWW) is currently participating in a National Programme of Trials to investigate the feasibility of using new technologies to achieve very low phosphorus (P) levels in final effluent discharged from sewage treatment works. The trials, which are funded under the Phase 4 NEP, are organised by UK Water Industry Research (UKWIR) to […]

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Shieldhall Tunnel (2016)

Construction of the Shieldhall Tunnel, the biggest investment in the Glasgow wastewater network since Victorian times, is well underway. Once complete, it will improve river water quality and the natural environment of the River Clyde and its tributaries, enable the Greater Glasgow area to grow and develop, alleviate sewer flooding key locations and deal with […]

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River Elwy Catchment (2015)

Natural flood risk management (NFRM) is increasingly seen as a valuable addition to conventional flood protection approaches. It is being trialled across several catchments in the UK; however there is currently no spatially integrated approach to assess the relative impact of combined measures across a catchment. An integrated approach to evaluating the flood risk benefits […]

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