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Yorkshire Water

Yorkshire Water manages the collection, treatment and distribution of water to around 2 million homes throughout Yorkshire, supplying 1.3 billion litres of treated water every day, as well as collecting, treating and disposing of about one billion litres of wastewater safely back into the environment.

This is made possible with an asset base of more than 700 water and sewage treatment works, 62,000 miles of water and sewerage mains and 120 reservoirs across Yorkshire.

Embsay WTW (2024)

Embsay Water Treatment Works is a standalone 24 ML/d water treatment works operated by Yorkshire Water (YW) and located in the Yorkshire Dales National Park, providing clean water to over 15,000 people in Skipton and surrounding areas. The existing works comprises of clarifiers, rapid gravity filters and a chlorine contact tank with associated chemical dosing. […]

Esholt STW (2024)

Fulfilling the Water Industry National Environmental Programme to reduce overall phosphorus in our rivers

Gouthwaite Reservoir (2024)

Delivering the successful design and construction of a large diameter emergency drawdown siphon at one of Yorkshire Water’s largest reservoirs

Red Doles CSO (2024)

The Red Doles Combined Sewer Overflow (CSO) neighbours the Huddersfield Broad Canal and a Network Rail bridge. The CSO serves a catchment covering approximately 3.8km2, predominantly consisting of residential properties and accommodating around 8512 people. The majority of the Fartown area of Huddersfield drainage operates as a combined system, with Red Doles receiving flows from […]

Stockton Lane, York, Mains Rehabilitation (2024)

Clean water infrastructure pipe spray lining

Yorkshire Water P Schemes Portfolio (2024)

Batched P removal portfolio to help achieve WINEP compliance

Knostrop STW (2023)

Knostrop Sewage Treatment Works (STW) is Yorkshire Water’s largest wastewater treatment site, serving a population equivalent of 990,000 and a full flow to treatment (FFT) of 5600 l/s. The WINEP Programme requires Yorkshire Water (YW) to achieve compliance with the new Total Phosphorus and Total Iron permit levels at 80 wastewater treatment works, including Knostrop. […]

Lower Barden Reservoir (2023)

Lower Barden Reservoir is the lower of two reservoirs located near Bolton Abbey within the Yorkshire Dales National Park. The reservoir is an impounding reservoir with a crest length of approximately 640m and a maximum height of 28m with a capacity of 2.23 Mm3. The overflow is located on the right-hand side of the embankment […]

Niagara Weir Stabilisation & Fish Pass (2023)

During the industrial revolution, pollution and weir constructions in Yorkshire resulted in the rapid decline of river standards and loss of once abundant species such as salmon, trout, and grayling. The rivers were wiped of ecological habitats and the number of species found in the river declined by 83%. In 1999 Yorkshire Water installed the […]

St Augustines Road Flood Alleviation (2023)

St Augustines Road is a busy thoroughfare in Chesterfield linking the town to Matlock and the south-eastern edge of the Peak District. Lying within the Yorkshire Water (YW) waste catchment area, the road is steep in its nature with gradients often exceeding 7%. Due to the local hydraulic catchment and topography, during heavy rainfall events […]

Tophill Low WTW (2023)

Tophill Low Water Treatment Works (WTW) is a 68 Ml/d water production plant situated in the East Riding of Yorkshire, approximately six miles from Driffield. The works was originally constructed in 1959 and upgraded in the 1990s to the current configuration. The treatment process presently includes pH correction, ozonation, coagulation, DAF clarification, rapid gravity filtration, […]

Clifton Integrated Constructed Wetland (2022)

Clifton Wetlands is a new, integrated constructed wetland (ICW) built at Yorkshire Water’s Clifton Wastewater Treatment Works (WwTW), near Doncaster in South Yorkshire. It is a ground-breaking project that utilises a nature based solution to replace conventional wastewater treatment processes with a natural, sustainable and low-carbon alternative. Yorkshire Water, the Environment Agency, Stantec UK and […]

Enhanced Biological Phosphorus Removal Programe (2022)

As part of the capital investment programme for the years 2020 to 2025 (AMP7), Yorkshire Water Services (YWS) set out to deliver a programme to comply with new regulatory obligations on phosphorus (P) standards (Water Industry National Environment Programme – WINEP) while ‘greening’ their approach to wastewater treatment by prioritising solutions with lowest whole life […]

Roundhay Park Lane CSO (2022)

The project is located within the residential area of Roundhay in north Leeds, less than 500m from the city’s largest park. The immediate area’s combined system serves in excess of 1900 residential properties and ultimately feeds into the wider Leeds city combined system via Roundhay Park Lane Combined Sewer Overflow (CSO). Hydraulic and water quality […]

Swinsty Impounding Reservoir (2022)

Swinsty Reservoir is the third in a cascade of four impounding reservoirs in the Washburn Valley, North Yorkshire. The reservoir is impounded by a 490m long, 24m high earth-fill embankment dam with a central puddle clay core, storing 3.94 million cubic metres at top water level. The overflow is located on the right-hand side (RHS) […]

Hollym, Myers Lane, WwTW (2021)

Constructed in 1991, the existing Withernsea Sewage Treatment Works (STW) lies 2km south of the East Yorkshire coastal resort town of Withernsea and was built circa 180m from the cliff edge with an expected asset life in excess of 60 years. Since 1998, coastal erosion rates in the area have increased significantly from historic levels, […]

Huddersfield Energy & Recycling Facility (2021)

Sludge treatment in the Huddersfield area was previously provided by incineration at Calder Valley Incinerator, located at Yorkshire Water’s Upper Brighouse Site. This incinerator has been inoperable since a weather event in 2015. Following a strategic review, Yorkshire Water Services (YWS) decided to progress with conventional mesophilic anaerobic digestion (MAD) plant supported by lime sanitisation […]

Hull WwTW - Project Update (2021)

Located in Saltend, Yorkshire Water’s Hull WwTW provides sewage treatment for a population equivalent of over 1 million people, covering an area from the west of Hull to Hedon in the east. This case study follows on from an initial paper in 2020 and details the progress of the new inlet works and the refurbishment […]

Waverley Growth (2021)

To accommodate new housing and commercial growth in the Waverley/Catcliffe area of Sheffield, Yorkshire Water required the design and construction of a new pipeline to transfer the flows from a housing development of 4000 homes to the main Blackburn Meadows WwTW. The pipeline route crossed main dual carriageways, other roads, roundabouts, railway lines and passed […]

Withernsea Long Sea Outfall - Part 2 (2021)

August 2020 saw the successful completion of a new 3.5km outfall pipeline comprising of onshore (2.5km) and offshore (1km) sections on the Holderness Coast in Withernsea, East Riding of Yorkshire. Due to continued coastal erosion, the purpose of the project was to relocate the existing Withernsea WwTW further inland and replace the exposed existing long […]

Blackmoorfoot Reservoir (2020)

Blackmoorfoot Reservoir, a storage reservoir situated south-west of Huddersfield in West Yorkshire, was constructed between 1871 and 1876 at a cost of £260,000. It has a capacity of over 700,000 gallons and covers an area of 102 acres and provides raw water to Blackmoorfoot WTW, which supplies treated water to Huddersfield and surrounding areas. The […]

Bolton-upon-Dearne WwTW (2020)

Bolton-upon-Dearne Wastewater Treatment Works serves approximately 25,000 customers in Rotherham. Faced with an Environment Agency consent to reduce ammonia at the works, Yorkshire Water has undertaken a £12.3m, 14-month project to construct a brand new inlet works and install a new treatment process that will greatly improve the quality of water being released back into […]

Hookstone Road CSO (2020)

Hookstone Road CSO in Harrogate, North Yorkshire, is a CSO chamber with upstream and downstream online storage provided by large diameter pipes. During storm events, pass forward flow is restricted by the 200mm outlet pipe and 90 degree bend downstream and partially fills the storage pipes before excess flows pass through a screen at the […]

HS2 Impact Assessment (2020)

High Speed 2 (HS2) will be the UK’s new £56 billion high speed railway linking London to the Midlands and north of England with some sections of the route already under construction. The new high-speed railway line in Yorkshire will run from Chesterfield to Leeds. Yorkshire Water are the water and wastewater authority in this […]

Huddersfield Energy & Recycling Facility (2020)

Huddersfield Energy and Recycling Facility (Huddersfield E&RF) is in Mirfield on Yorkshire Water’s Upper Brighouse site. The project involved the demolition of the existing incinerator and construction of a new mesophilic anaerobic digestion facility that will produce electricity; equivalent to powering 5280 homes once it is fully operational. The primary drivers for the scheme were: […]

Hull WwTW (2020)

Hull WwTW located at Saltend, east of Hull, provides sewage treatment for a population equivalent of over 1 million people, covering an area from the west of Hull to Hedon in the east. The existing treatment works was built over 20 years ago and required some specific upgrading and refurbishment. The primary drivers for the […]

Langsett WTW (2020)

Yorkshire Water’s Langsett Water Treatment Works (WTW) is located 17km north-west of Sheffield in South Yorkshire, on the edge of the Peak District National Park. The WTW treats raw water which is extracted by gravity from two upland impounding reservoirs at Langsett (adjacent to the WTW) and nearby Midhope (approximately 1km south-east of the site). […]

Lobwood Fish Pass (2020)

All freshwater fish species in England undergo migration in one form or another, ranging from movements pertaining to feeding and refuge habitats over the course of a day, to longer journeys (for example, between freshwater and marine habitats) on a less frequent basis. Between 2015-2020, Yorkshire Water, in partnership with the Environmental Agency as part […]

Tophill Low Fish Pass (2020)

Tophill Low Water Treatment Works supplies Hull and surrounding areas with clean water abstracted from the River Hull at Hempholme. The lock, which is managed by the Driffield Navigation Trust, is a very busy passage for narrow boats during the spring and summer months. The raw water intake capacity is managed by Yorkshire Water in […]

Withernsea Long Sea Outfall - Part 1 (2020)

Withernsea is located in Yorkshire, approximately 18 miles east of Hull on the Holderness Coast. The area is vulnerable to coastal erosion due to the geology being mainly soft boulder clay. Groynes and sea walls being installed in Bridlington and Hornsea have affected the longshore drift, which has caused Withernsea area beaches to narrow, providing […]

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 […]

Jordans Dam and Wharncliffe Fish Passes (2019)

Yorkshire Water, in partnership with the Environment Agency as part of a much wider programme of work to comply with the National Environment Programme, will see a total of £10m invested between 2015-2020. Such investment will see the creation of 14 new fish passes across the Yorkshire region. The primary driver is compliance with the […]

Knostrop Sludge Treatment Facility (2019)

Over the last two decades the concept of municipal sewage being an expensive to treat waste stream has slowly become surpassed by renewable and sustainable opportunities that re-label wastewater treatment works as water resource recovery facilities (WRRF), sludge recycling centres (SRC) or sludge treatment facilities (STF) to name but a few. Incentivised by UK Government, […]

Loftsome Bridge WTW - Intake (2019)

Yorkshire Water’s Loftsome Bridge Water Treatment Works (WTW) is sited off the A63 between Selby and Howden in East Yorkshire. This WTW is a key part of the Yorkshire Water Services’ network, serving the Hull distribution network and contributing significantly to the Yorkshire Water Grid System. The WTW abstracts water from the River Derwent which […]

Stocksbridge WwTW (2019)

Stocksbridge WwTW is located in the village of Deepcar on the outskirts of Stocksbridge, approximately 7km northwest of Sheffield city centre. It currently serves a population of 13,000, but this is expected to grow towards 15,000 by 2030. Major housing development is ongoing near the existing works, and as part of this Yorkshire Water reached […]

Ten Acre Impounding Reservoir (2019)

Ten Acre Impounding Reservoir (IRE), located in Haverah Park near Harrogate, is owned and operated by Yorkshire Water (YWS). The reservoir is impounded by an earth-fill embankment dam, approximately 17m above natural ground level at the highest point, with a capacity of 150,000m3 at top water level. The reservoir was constructed by Harrogate Waterworks Company […]

Gouthwaite Impounding Reservoir (2018)

Built under the Bradford Corporation Waterworks Act 1890, Gouthwaite Impounding Reservoir (IRE) forms the lowest of a cascade of three reservoirs in Upper Nidderdale, all designed by their chief waterworks engineer. The upper two reservoirs, Angram and Scar House, supply water along the Nidd Aqueduct to Bradford. Gouthwaite IRE was built 11km downstream to provide […]

Irton WTW (2018)

Yorkshire Water’s Irton Water Treatment Works (WTW) is located 5.5km southwest of Scarborough in North Yorkshire. The WTW abstracts water from an aquifer via numerous boreholes and supplies two local service reservoirs; Springhill and Low Mount, which feed Scarborough and the surrounding area. Demand profiles are seasonably variable. The site has an abstraction licence for […]

Knostrop Sludge Treatment Facility (2018)

The Yorkshire Water sewage sludge incinerator at Knostrop WwTW is approaching the end of its asset life in AMP7. This, along with high operating costs has driven a business need to review the long-term treatment of sludges in the Yorkshire/Leeds catchment. Following a strategy review, Yorkshire Water Services (YWS) decided to progress with conventional mesophilic […]

Rivelin WTW - Sirofloc Replacement: Part 2 (2018)

Yorkshire Water Services (YWS) committed to the Drinking Water Inspectorate’s (DWI) compliance date of 31 December 2017 for beneficial completion of a new clarification process at Rivelin WTW. The £25m scheme required the design and construction of a large 82.5MLD buried treatment plant (80m long, 40m wide and 14m high) on the border of the […]

Station Road (Queensbury) Sewer Flooding (2018)

Mott MacDonald Bentley (MMB) carried out an investigation for Yorkshire Water Services into the flooding of five properties in Queensbury in West Yorkshire during periods of heavy rainfall. The investigation concluded that the combined sewer system in the residential cul-de-sac had insufficient capacity during a 1 in 10-year storm return event, resulting in overland flow […]

Bransholme Surface Water Pumping Station (2017)

Hull’s response to the 2007 flooding that affected thousands of homes in the Bransholme catchment is now complete and operational. This saw Yorkshire Water appoint Black & Veatch (now Binnies) to carry out a feasibility study followed by a design and build contract for a new pumping station. The new Bransholme Surface Water Pumping Station (SWPS), […]

Butterley Spillway Improvements Works (2017)

Yorkshire Water’s Butterley Reservoir is located in the Wessenden Valley, West Yorkshire, with construction completed in 1906. The reservoir dam has a puddle clay core and a spillway constructed with local traditional stone. Due to fissures in the surrounding rock, leakages around the dam were experienced during the original commissioning phase, leading to a longer […]

Digley IRE Valve Tower Metalwork Replacement (2017)

Digley Impounding Reservoir (IRE) is located in Holmbridge, Huddersfield. The valve tower associated with the reservoir had corroded access metalwork which did not meet current health and safety standards. The project replaced all the corroded access metalwork within the valve tower with new Yorkshire Water Asset Standard compliant metalwork, improving safe access within the tower. […]

Flamborough Head Sewage Pumping Station (2017)

The Flamborough Head Sewage Pumping Station (SPS) is located close to a scheduled monument, a Site of Special Scientific Interest, within a local nature reserve, adjacent to a Special Area of Conservation and Special Protection Area and is home to guillemots, puffins, dolphins and porpoises. The area is also a major tourist attraction, enticing thousands […]

Masonry Reservoir Spillway Refurbishment (2017)

The innovative use of a spray applied structural concrete ‘shotcrete’ lining is a cost and programme effective alternative to ‘traditional’ in situ or precast concrete repair, or re-construction of masonry reservoir spillways. This construction methodology was used successfully across three masonry spillways of varying geometries to prolong the operational life of the ageing structures, whilst […]

Saltend WwTW (2017)

Yorkshire Water’s Saltend WwTW had a history of environmental under-performance which resulted in a significant number of customer complaints due to odour. Between September 2015 and May 2016, £18m of refurbishment and upgrade work was carried out on a fast track basis to improve this performance. Commercial arrangements were adjusted from normal framework conditions to […]

Wheatcroft Long Sea Outfall (2017)

August 2016 saw the successful completion of a new 2.5 kilometre long sea outfall pipeline on the east coast of Yorkshire, South of Scarborough. The purpose of the project was to replace an existing corroded and collapsed steel outfall pipe with a new solid wall polyethylene (PE) pipeline. The installation required meticulous planning by a […]

Rivelin WTW - Sirofloc Replacement: Part 1 (2016)

Rivelin WTW provides drinking water for a population of approximately 200,000 in Sheffield. The raw water feeding the works is a blend of water from the Derwent Valley via Ladybower Reservoir and the local catchment via Rivelin Reservoir. The quality of the raw water has deteriorated in the period since the current plant was built […]

Wetherby STW (2016)

Wetherby STW is the wastewater treatment facility for the market town of Wetherby and its surrounding area. It has a population of approximately 23,000 people and is mainly unaffected by seasonal variations other than the local Wetherby Race Course. As there is no direct connection from the racecourse to the sewage treatment works, all racecourse […]

Baitings Gate Bridge Refurbishment (2015)

Preservation of an asset to provide a low-maintenance safe crossing of the reservoir for the public

Beaver Dyke Reservoir (2015)

Reservoir discontinuance - removing reservoir from the Reservoirs Act 1975 by excavation of over 20,000m3 of embankment fill

Bransholme Surface Water Pumping Station (2015)

Flood protection for the Bransholme and Kingswood catchment

Yorkshire Water rBWD - Bridlington Stormwater Outfall (2015)

rBWD - 1.25km long sea outfall, part of the works to achieve ‘excellent’ bathing water standards for Bridlington beaches

FFD Programme - Castleford WwTW (2015)

Yorkshire Water -New construction and refurbishment of existing assets to provide an increase in treatment capacity and improved performance

Eccup en-route Storage Reservoir - Siphon Pipes (2015)

Compliance with the Reservoirs Act (1975) provision of sufficient drawdown capacity

Tophill Low WTW (2015)

Nitrate reduction on one of Yorkshire Water’s key strategic water treatment works

Watersheddles Reservoir Spillway (2015)

Innovative solutions to meet challenging site conditions and maintain compliance with the Reservoirs Act 1975

Yorkshire Water Chlorine Compliance (2015)

Ensuring the safety of toxic gas assets across Yorkshire

Bramley Service Reservoir (2014)

Pushing the boundaries of Building Information Modelling & precast concrete engineering in the water industry

Clifton Rising Main (2014)

Replacement of a failing rising main through an ecologically sensitive and environmentally rich area

Gorple Upper Reservoir Spillway Improvements (2014)

Investigating and addressing deficiencies in the capacity of the overflow system

Sutton WwTW (2014)

Major capital efficiencies on FFD scheme achieved through early contractor involvement and value engineering

Yorkshire Water rBWD - Bridlington (2014)

Yorkshire Water’s £40m investment to achieve ‘excellent’ bathing water standards in Bridlington

Blackburn Meadows WwTW - Bio-Energy Digester (2013)

New sludge treatment facility with a 5-year payback saves Yorkshire Water £4.5m/year in operating costs

Cudworth WwTW (2013)

Thinking ‘outside the pipes’ to deliver a cost effective solution to meet demands of a growing population

Eccup No 1 WTW - Hydroelectric Scheme (2013)

Hydroelectric installation integrated with existing operation to generate up to 700MWh of electricity per annum

Esholt WwTW - Bio-Energy Installation (2013)

Optimising the production and utilisation of biogas from sewage sludge

Flood Resilience Planning (2013)

Implementing the service risk framework to increase asset resilience

Rivelin WTW - Manganese Removal: Part 1 (2013)

Award winning project driven by BIM and innovation to deliver collaborative design and construction efficiencies

Rodley Fish Pass Scheme (2013)

Providing an asset with biodiversity benefits to the River Aire and Rodley Nature Reserve

Yorkshire Water rBWD - Scarborough WwTW (2013)

investment to achieve ‘excellent’ bathing water standards to help Yorkshire’s beaches be amongst the best in Europe

FFD Programme - Woodhouse Mill WwTW (2013)

Yorkshire Water: Refurbishment and asset replacement for FFD compliance

Acomb Landing WTW (2012)

Rebuilding York’s water treatment works

Blackburn Meadows WwTW - Bio-energy Digester (2012)

A new sludge treatment facility for Yorkshire Water

FFD Programme - Blackburn Meadows WwTW (2012)

Additional sludge treatment, replacement of PSTs and refurbishment works to existing Yorkshire Water assets to meet FFD consent

Esholt STW - Thermal Hydrolysis Plant (2012)

New process provides ‘green’ energy from sewage sludge

Lower Laithe Reservoir (2012)

Spillway improvements and clay core raising

Rivelin WTW - Manganese Removal: Part 1 (2012)

Process upgrades to resolve manganese problems

Yorkshire Water rBWD - Scarborough WwTW (2012)

investment to achieve ‘excellent’ bathing water standards

FFD Programme - Woodhouse Mill WwTW (2012)

Yorkshire Water: Refurbishment and asset replacement for FFD compliance

Acomb Landing WTW (2011)

New 35Ml/d DAF plant for the City of York

FFD Programme - Calder Vale STW (2011)

Yorkshire Water - A test case for a new procurement model

Precast Sewage Pumping Station Programme (2011)

Precast products drive efficiency across the Yorkshire Water region

Riding Wood Reservoir Spillway Improvements (2011)

Considerate construction in the Peak District National Park

Whitby (Endeavour Wharf) Sewer Repair (2011)

Close community and supplier liaison to deliver a main sewer repair

Yorkshire Water rBWD - Revised Bathing Water Improvement Programme (2011)

Compliance program overview - Yorkshire Water’s £110m investment to achieve 'Excellent' beach standards

Hemingbrough WwTW (2010)

Urban waste water treatment directive scheme

FFD Programme - Huddersfield & Spen Valley WwTWs (2010)

Yorkshire Water's £300m freshwater fish directive programme

Keldgate WTW (2010)

Nitrates removal scheme to meet regulatory compliance

Pocklington WwTW (2010)

A compact solution to provide treatment to meet FFD consent

Eccup No1 WTW (2009)

Quality and base amalgamation

Eccup WTW - Ozone Plant (2009)

Ozone system upgrade

Ewden & Graincliffe WTWs (2009)

Raw water colour reduction schemes

FFD Programme - Harrogate South, Nabern & Spen Valley WwTWs (2009)

An update on progress with Yorkshire Water’s £300m FFD Programme

Keldgate Critical Service Reservoir (2009)

Drainage and waterproofing of a critical service reservoir near Hull

Keldgate WTW (2009)

Innovative ACWA NITREATTM plant future proofs WTWs against anticipated increase in nitrate levels

Loftsome Bridge WTW - Wind Energy Scheme (2009)

£4 million Wind Energy Scheme provides base load power to the treatment facilities

Marton WTW (2009)

Directive to reduce the concentration of iron and manganese

Melbourne WwTW (2009)

A different approach to meeting a new consent

Moor Monkton RPS (2009)

Pumps and HV switchgear replacement

Albert WTW (2008)

Innovative solutions with a joint delivery team environment

Bullamoor Service Reservoir (2008)

Improved security of supply to two Yorkshire areas

Denaby, Mexborough & Burcroft WwTW (2008)

‘Three into one’ wastewater treatment project

FFD Programme - Knostrop & Nelley (2008)

Yorkshire Water update on progress with £250m Freshwater Fish Directive

Monkton Colliery WwTW (2008)

Reed beds provide £300,000 green solution at former colliery

Seamer & Skirlaugh WwTW (2008)

Innovative solutions with a joint delivery team environment

Service Reservoir Bacteriological Remediation Programme (2008)

Capital investment at service reservoirs in Yorkshire

Thornton Steward WTW (2008)

Increased capacity and process stability

Drinking Water Compliance throughout Yorkshire (2007)

Yorkshire Water’s £70m capital investment

FFD Programme - Esholt & Halifax (2007)

Introduction to Yorkshire Water's £220m Freshwater Fish Directive Programme

Harlow Hill WTW (2007)

Trihalomethane reduction scheme

High Royd WwTW (2007)

£3 million upgrade at Yorkshire Water’s Calder Valley Site

Middleham Service Reservoir (2007)

Rebuilding reservoir in area of outstanding national beauty

Nutwell WTW (2007)

Nutwell WTW and Doncaster area strategy

Swaledale Water Supply (2007)

Changing water quality standards for some 700 properties

Yorkshire Water Pollution Prevention Pilot (2007)

£3.2m scheme focuses on “Hotspots” & “Hawkeye” sensors

Bridlington Water Rationalisation Strategy (2006)

Yorkshire Water invest £14 million to achieve compliance & security of Bridlington supply

Langsett WTW (2006)

Trihalomethane Compliance

Loftsome Bridge WTW (2006)

Pesticide & trihalomethane reduction scheme

Mitchell Laithes STW (2006)

Digester roof refurbishment

Towngate CSO (2006)

Hiding new prefab CSO in a town centre roundabout

Wortley STW (2006)

Ingenious solution saved six weeks, cut risks, and costs

Kellington Sewer Repair (2005)

Repair team win friends despite 6 months disruption

Knostrop Sewer (2005)

155yr old major city sewer collapsed emergency team restored flow in 3 weeks

Knostrop WwTW - Innovative Storm Tank Cleaning (2005)

Technology used to clear land mines cleans storm tanks

Linton Falls Sewage Pumping Station (2005)

Considerate construction in Yorkshire Dales

Scrayingham Ecological WwTW (2005)

Award winning ‘first time’ system for Yorkshire village

Totley Brook Flood Alleviation Scheme (2005)

Delivering solutions within an urban landscape

West Bretton WwTW (2005)

‘Lean working’ pilot scheme delivering success

Yorkshire Water Incinerator Upgrades Part 3 (2005)

New effluent treatment plant satisfies latest EC legislation

Atwick WwTW (2004)

Team work & innovation provide solution

Balby WwTW (2004)

Delivering RQO compliance to a challenging programme

Bradford UID Improvement Scheme (2004)

Yorkshire Water’s largest AMP3 uID improvement scheme

Crofton WwTW (2004)

Meeting consent & improving river quality

Heckmondwike CSO (2004)

Cooperation & innovation solve double problem

Seamer WwTW (2004)

AMP 3 team deliver innovative tertiary treatment solution

Thirsk - Northallerton Supply Strategy (2004)

Improving supply to 13,000 properties over 700 sq kms

Yorkshire Water Incinerator Upgrades Part 2 (2004)

Upgrade at four plants to meet Directive

Yorkshire Water UID Programme (2004)

Innovative solutions to uCSO problems beat obligations

Yorkshire Water West Area IWO Programme (2004)

Cost effective solution for rural pollution problem

Archaeological Finds at Two Major Yorkshire Water Projects (2003)

Significant archaeological finds at two major projects

Bradford Intermediate Ring Main (2003)

Rehabilitation of large diameter mains within city ring road network

Calder Vale STW (2003)

£8m upgrade improves effluent quality to River Calder

Cawood, Kellfield & Wistow Sewage Treatment Scheme (2003)

Providing sewage facilities for 3 Yorkshire villages

Eastwood WwTW (2003)

Uprating 50% of older secondary treatment to meet new consent

Harrogate North WwTW (2003)

Tertiary treatment using nitrifying sand filters

Skipsea WwTW (2003)

Yorkshire Water’s solution to sudden population changes

Washburn Valley Reservoirs (2003)

Overflow remedial works for 4 Yorkshire reservoirs

Yorkshire Water Incinerator Upgrades Part 1 (2003)

Yorkshire Water to upgrade 4 sites by December 2005

Yorkshire Water West Area CSO Programme (2003)

Overcoming intermittent discharges in difficult urban area

Chellow Heights WTW (2002)

Modifications for THM removal

Derwent Aqueduct Duplication Main (2002)

Elvington WTW to Riccall Pumping Station

Hornsea & Mappleton UWwTD Schemes (2002)

New treatment works, pumping stations and outfalls

Redacre WwTW (2002)

New £6m works improves effluent quality to River Calder

Winscar Reservoir (2002)

Membrane repairs to a leaking reservoir