United Utilities
United Utilities provide water and wastewater services to around 3 million homes and 200,000 businesses in north-west England.
Every day, 2,000 million litres of treated water is distributed through a network of 42,000km of water mains and 1,400km of aqueducts. Raw water is collected and stored at the company’s reservoirs before being treated at one of 96 water treatment works. Wastewater is collected and distributed through a network of 72,000km of sewers and treated at the company’s 575 wastewater treatment works before being returned to the environment.
United Utilities Maintenance Service Provider Framework (2022)
As the UK’s largest listed water company, United Utilities aspires to ensure resilience of its network to the effects of climate change, improving the quality of wastewater effluent and providing a reliable and wholesome drinking water supply to its customers. To help drive greater efficiency and innovation in its network, United Utilities appointed Costain as […]
Renewable Energy
Wastewater Treatment and Sewerage
Water Treatment and Supply
Leased Lines Replacement Project (2020)
In April 2015, BT announced they would be withdrawing support of all their very low bandwidth (VLB) leased lines from a fixed deadline of the 31 March 2020. Leased lines are dedicated lines, used as connections to carry communications or electrical signals between two locations. They are often used in conjunction with telemetry outstations, with […]
Wastewater Treatment and Sewerage
Water Treatment and Supply
Barrow in Furness WwTW Outfall (2015)
Designing and installing the next generation of submarine outfall pipelines in the North West
Wastewater Treatment and Sewerage
Carlisle WwTW (2015)
AMP 5 supply and demand upgrade
Wastewater Treatment and Sewerage
Liverpool WwTW (2015)
Installation of CASS SBR plant for the secondary treatment process that will keep the River Mersey clean
Wastewater Treatment and Sewerage
Barrow WwTW (2014)
New stormwater storage facility to improve bathing waters of Morecambe Bay
Wastewater Treatment and Sewerage
Blackburn UID Scheme (2014)
Detailed design and construction of extensive modification works to an existing CSO chamber
Wastewater Treatment and Sewerage
Blackburn WwTW UIDs (2014)
Works to modify the site and eliminate two unsatisfactory intermittent discharges
Wastewater Treatment and Sewerage
Grane Valley Reservoirs (2014)
Future-proofing United Utilities reservoirs
Water Treatment and Supply
Huyton WwTW (2014)
Modifications to improve the efficiency of the sludge treatment process systems in the Lancashire/Merseyside area
Wastewater Treatment and Sewerage
Liverpool WwTW - Outfall Extension (2014)
Designing and installing the next generation of submarine outfall pipelines in the North West
Wastewater Treatment and Sewerage
Liverpool WwTW (2014)
Construction nears completion with the project moving smoothly into fit out and commissioning phases
Wastewater Treatment and Sewerage
Mersey Valley Sludge Main River Irwell Crossing (2014)
Design and installation of a new sludge transfer main across the River Irwell
Wastewater Treatment and Sewerage
Preston 7 UIDs (2014)
Collaboration, innovation and success in the face of adversity
Wastewater Treatment and Sewerage
Vyrnwy Aqueduct Refurbishment (2014)
Relining of 50km of 39” cast iron main by die drawing
Water Treatment and Supply
Walton-le-Dale WwTW (2014)
A major upgrade to an existing works, with a particularly complex construction & commissioning sequence
Wastewater Treatment and Sewerage
Bewsey Bridge SPS (2013)
£9.5m new build to replace an outdated last-in-line wastewater pumping station on a disused 1970s landfill site
Wastewater Treatment and Sewerage
Bloomfield Road (Blackpool) Tunnel Sleeving (2013)
An innovative solution to secure a key asset
Wastewater Treatment and Sewerage
Davyhulme WwTW (2013)
Biostyr® BAFF plant refurbishment
Wastewater Treatment and Sewerage
High Lane Service Reservoir (2013)
AMP5 security of supply
Water Treatment and Supply
Liverpool WwTW (2013)
United Utilities keeping the Mersey clean with the AMP5 upgrade project
Wastewater Treatment and Sewerage
Millom WwTW - Stormwater UV (2013)
New storm UV plant to disinfect stormwater prior to discharge into the Duddon Estuary
Wastewater Treatment and Sewerage
Preston 32 UIDs (2013)
Water quality improvement for the River Ribble and the Fylde coast
Wastewater Treatment and Sewerage
Runcorn WwTW (2013)
£6.4m AMP5 refurbishment of a 1960s WwTW in Cheshire
Wastewater Treatment and Sewerage
Asset Optimisation Programme (2012)
Optimising United Utilities’ wastewater asset base with joint operational and engineering teams
Wastewater Treatment and Sewerage
Liverpool WwTW (2012)
AMP5 main works upgrade sequencing batch reactor design and construction
Wastewater Treatment and Sewerage
Shap WwTW (2012)
New WwTW using a Membrane Biological Reactor improves River Eden Special Area of Conservation
Wastewater Treatment and Sewerage
Clapham, Austwick & Newby WwTW (2011)
United Utilities’ new wastewater treatment works in the Yorkshire Dales
Wastewater Treatment and Sewerage
Davyhulme WwTW (2011)
Delivering United Utilities’ sludge balanced asset programme
Wastewater Treatment and Sewerage
West East Link Main (2011)
The challenges met in delivering detailed design of the 55km pipeline
Water Treatment and Supply
Ashton under Lyne WwTW (2010)
Collaborative team effort delivers all round success
Wastewater Treatment and Sewerage
Fleetwood WwTW (2010)
AMP4 supply and demand project
Wastewater Treatment and Sewerage
Hodder Service Reservoir (2010)
New service reservoir required to improve the security of supply
Water Treatment and Supply
Leigh WwTW (2010)
VWS Hydrotech Discfilter tertiary treatment plant for United Utilities
Wastewater Treatment and Sewerage
Mersey Valley Process Centre - SHARON Plant (2010)
Advanced stable high rate ammonia removal over nitrite system
Wastewater Treatment and Sewerage
Seathwaite Tarn Reservoir (2010)
Repairs to a remote reservoir in Cumbria
Water Treatment and Supply
Solway Cluster (Glasson) WwTW (2010)
Constructing a new WwTW scheme in a highly sensitive AONB requires environmental vigilance
Wastewater Treatment and Sewerage
West East Link Main (2010)
55km pipeline project to carry 100 million litres water daily
Water Treatment and Supply
Workington WwTW (2010)
AMP4 modifications to the sludge treatment and disposal process
Wastewater Treatment and Sewerage
Barrow Flood Relief Scheme (2009)
DG5 Flood Relief Scheme protecting a town from within
Wastewater Treatment and Sewerage
Biddulph WwTW (2009)
Conversion of existing COUF filters to nitrifying sand filters to meet a stringent ammonia consent
Wastewater Treatment and Sewerage
Blackburn WwTW Scheme - Nabs Head Inlet & Smithfold Main Works (2009)
Major works at Nabs Head Inlet and Smithfold Main Works
Wastewater Treatment and Sewerage
Carlisle Flood Alleviation Project (2009)
Eliminate the foul flooding from the sewer network up to the 1:30 year design storm.
Wastewater Treatment and Sewerage
Kendal WwTW (2009)
Amp 4Q phosphate removal project
Wastewater Treatment and Sewerage
Mersey Valley Process Centre - Shell Green Extension (2009)
Digested sludge recovery centre
Wastewater Treatment and Sewerage
Piethorne WTW (2009)
Reducing the risk of cryptosporidium outbreaks at two WTWs
Water Treatment and Supply
Wigan WwTW (2009)
Quality (Q) scheme
Wastewater Treatment and Sewerage
Arnfield & Godley WTW (2008)
Water quality improvements scheme for United Utilities
Water Treatment and Supply
Franklaw WTW (2008)
Pesticide removal by adsorption onto granular activated carbon
Water Treatment and Supply
Poaka Beck WTW (2008)
Maximum output needed increase from 13Ml/d to 16 Ml/d
Water Treatment and Supply
Windermere WwTW (2008)
Two drivers resolved by refurbishment project
Wastewater Treatment and Sewerage
Bromborough & Birkenhead WwTWs Odour Control (2007)
Odour control projects
Wastewater Treatment and Sewerage
CHP at United Utilities' WwTWs (2007)
Providing economic & environmental benefits
Renewable Energy
Wastewater Treatment and Sewerage
Ridgaling (Barley) WTW (2007)
Upland sources to be fully utilised if demands during a drought were to be met
Water Treatment and Supply
Stockport WwTW (2007)
Early start project for UU’s Southern Area integrated alliance
Wastewater Treatment and Sewerage
Thirlmere Aqueduct - Inspection (2007)
Inspection & refurbishment as part of major programme
Water Treatment and Supply
Wigan WwTW - Inlet Works (2007)
Innovative design solution for United Utilities
Wastewater Treatment and Sewerage
Lamoload WTW (2005)
Engineering award claim for upgrade in tranquil beauty spot
Water Treatment and Supply
Prescot WTW (2005)
£9.1m scheme for increased output & reduced compliance risk
Water Treatment and Supply
St Helens WwTW (2005)
£20m complex construction project improves effluent quality
Wastewater Treatment and Sewerage
Sutton Hall WTW (2005)
Water quality improvements, Ellesmere Port, Cheshire
Water Treatment and Supply
UID Programme (2005)
AMP 3 year 5 UID programme
Wastewater Treatment and Sewerage
Warrington North STW (2005)
£4 million enhancement to ensure effluent compliance
Wastewater Treatment and Sewerage
Wilmslow WwTW (2005)
£2.6m UU scheme improves effluent quality standard
Wastewater Treatment and Sewerage
Braystones WwTW (2004)
‘Greenfield’ WwTW for United Utilities on west Cumbria coast
Wastewater Treatment and Sewerage
Croal UID (2004)
18 outputs each with own criteria integrated into sewer network
Wastewater Treatment and Sewerage
Cumwhinton WTW (2004)
Upgrading of treatment works serving Carlisle area
Water Treatment and Supply
Fishmoor WTW (2004)
Alliance ‘design teamworking’ leads way to major savings
Water Treatment and Supply
Hyndburn WwTW (2004)
£12m quality & maintenance improvements
Wastewater Treatment and Sewerage
Leigh WwTW (2004)
New BAFF plant benefits local environment
Wastewater Treatment and Sewerage
Southport WwTW (2004)
Meeting new “Safe Sludge Matrix’ requirements
Wastewater Treatment and Sewerage
Chapel en le Frith WwTW (2003)
Tertiary stage ensures quality receiving waters for game fish
Wastewater Treatment and Sewerage
Cumbria & Ribble UV Projects (2003)
Part of United Utilities massive 2000-2005 investment
Wastewater Treatment and Sewerage
Franklaw WTW (2003)
Framework alliance provides value engineering solutions
Water Treatment and Supply
Sutton Hall WTW (2003)
Safe, high quality drinking water for 483,900 customers
Water Treatment and Supply
Sludge Pathogen Removal (2002)
15 multi-site projects in AMP3 programme
Wastewater Treatment and Sewerage
Watchgate WTW (2002)
Water quality improvements
Water Treatment and Supply