Severn Trent plc is a
water company based in
Coventry
Coventry ( or ) is a city in the West Midlands, England. It is on the River Sherbourne. Coventry has been a large settlement for centuries, although it was not founded and given its city status until the Middle Ages. The city is governed ...
, England. It supplies 4.6 million households and business across the
Midlands
The Midlands (also referred to as Central England) are a part of England that broadly correspond to the Mercia, Kingdom of Mercia of the Early Middle Ages, bordered by Wales, Northern England and Southern England. The Midlands were important in ...
and Wales.
It is traded on the
London Stock Exchange
London Stock Exchange (LSE) is a stock exchange in the City of London, England, United Kingdom. , the total market value of all companies trading on LSE was £3.9 trillion. Its current premises are situated in Paternoster Square close to St Pa ...
and a constituent of the
FTSE 100 Index
The Financial Times Stock Exchange 100 Index, also called the FTSE 100 Index, FTSE 100, FTSE, or, informally, the "Footsie" , is a share index of the 100 companies listed on the London Stock Exchange with (in principle) the highest mar ...
. Severn Trent, the trading name owned by the company, applies to a group of companies operating across the United Kingdom, United States and mainland
Europe
Europe is a large peninsula conventionally considered a continent in its own right because of its great physical size and the weight of its history and traditions. Europe is also considered a subcontinent of Eurasia and it is located enti ...
, with some involvement in the
Middle East
The Middle East ( ar, الشرق الأوسط, ISO 233: ) is a geopolitical region commonly encompassing Arabia (including the Arabian Peninsula and Bahrain), Asia Minor (Asian part of Turkey except Hatay Province), East Thrace (Europ ...
. It took its name from the two predecessor
River Authorities, which managed the catchment of the
Severn
, name_etymology =
, image = SevernFromCastleCB.JPG
, image_size = 288
, image_caption = The river seen from Shrewsbury Castle
, map = RiverSevernMap.jpg
, map_size = 288
, map_c ...
and the
Trent.
History
The
Severn Trent Water Authority
Severn Trent Water Authority was one of ten regional water authorities established in 1974. Its area of operation was the catchments of the River Trent and River Severn. It assumed the powers and responsibilities of existing water supply author ...
was established in 1974. In July 1989, the
Severn Trent Water Authority
Severn Trent Water Authority was one of ten regional water authorities established in 1974. Its area of operation was the catchments of the River Trent and River Severn. It assumed the powers and responsibilities of existing water supply author ...
was partially privatised under the
Water Act 1989, together with the rest of the water supply and sewage disposal industry in England and Wales, to form Severn Trent Water, with a responsibility to supply freshwater and treat
sewage
Sewage (or domestic sewage, domestic wastewater, municipal wastewater) is a type of wastewater that is produced by a community of people. It is typically transported through a sewer system. Sewage consists of wastewater discharged from residenc ...
for around 8 million people living in the
Midlands
The Midlands (also referred to as Central England) are a part of England that broadly correspond to the Mercia, Kingdom of Mercia of the Early Middle Ages, bordered by Wales, Northern England and Southern England. The Midlands were important in ...
of England and also a small area of Wales.
In May 1991, it went on to acquire
Biffa, a waste management business.
In October 2006, Biffa was de merged from the group Severn Trent, and was subsequently listed separately on the
London Stock Exchange
London Stock Exchange (LSE) is a stock exchange in the City of London, England, United Kingdom. , the total market value of all companies trading on LSE was £3.9 trillion. Its current premises are situated in Paternoster Square close to St Pa ...
. In January 2007, the American side of Severn Trent Laboratories was sold to
HIG Capital.
In 1993 the company acquired East Worcester Water plc, a former statutory water company whose area was surrounded by Severn Trent's existing water supply area, and the operations were merged.
In September 2007, the company announced they would be closing its headquarters in
Birmingham
Birmingham ( ) is a city and metropolitan borough in the metropolitan county of West Midlands in England. It is the second-largest city in the United Kingdom with a population of 1.145 million in the city proper, 2.92 million in the We ...
and relocating to a custom built office complex in the centre of
Coventry
Coventry ( or ) is a city in the West Midlands, England. It is on the River Sherbourne. Coventry has been a large settlement for centuries, although it was not founded and given its city status until the Middle Ages. The city is governed ...
in the autumn of 2010.
In June 2016, Severn Trent Water and United Utilities formed
Water Plus in preparation for the water market deregulation, to provide the retail services for their non household customers, after being granted approval by the
Competition & Markets Authority.
In 2017 Severn Trent plc acquired Dee Valley Water, a water-only company with an area adjoining Severn Trent Water's own. In 2018 the areas of the two operating companies were adjusted so that Hafren Dyfrdwy (the new name for the Dee Valley company) took on all Severn Trent Water's water supply and wastewater operations in Wales, and the small area of the former Dee Valley operation within England (an exclave at
Chester
Chester is a cathedral city and the county town of Cheshire, England. It is located on the River Dee, close to the English–Welsh border. With a population of 79,645 in 2011,"2011 Census results: People and Population Profile: Chester Loca ...
) became part of Severn Trent Water.
Operations
The main companies in the group are Severn Trent Water,
Hafren Dyfrdwy and Severn Trent Services. Severn Trent Laboratories was rebranded as part of Severn Trent Services in 2010, to streamline the company and give it a single worldwide image, rather than a series of separate organisations with different identities. As with all water companies in the United Kingdom, Severn Trent is regulated under the
Water Industry Act 1991.
, the company supplies about 4.6 million households and businesses in its area, rising from 3.7 million in 2008. Severn Trent Water has a call centre in Coventry, dealing with operational emergencies and billing enquiries, and two other call centres in Derby and Shrewsbury, which deal solely with billing enquiries. Its head office is the new custom built Severn Trent Centre in Coventry.
Regulation and criticism
In July 2007, the
Mythe Water Treatment Works near Tewkesbury became inundated with water from the
River Severn
, name_etymology =
, image = SevernFromCastleCB.JPG
, image_size = 288
, image_caption = The river seen from Shrewsbury Castle
, map = RiverSevernMap.jpg
, map_size = 288
, map_ ...
during the
Summer 2007 United Kingdom floods
A series of large floods occurred in parts of the United Kingdom during the summer of 2007. The worst of the flooding occurred across Scotland on 14 June; East Riding of Yorkshire, East Yorkshire and English Midlands, the Midlands on 15 June; Yo ...
. The water coming into the plant was contaminated, and this led to the loss of all running water for approximately 150,000 people in
Cheltenham,
Gloucester
Gloucester ( ) is a cathedral city and the county town of Gloucestershire in the South West of England. Gloucester lies on the River Severn, between the Cotswolds to the east and the Forest of Dean to the west, east of Monmouth and east of t ...
and
Tewkesbury.
In July 2008,
OFWAT confirmed that it had fined Severn Trent Water £35.8 million for deliberately providing false information to Ofwat and for delivering poor service to its customers. In July 2008, the company was fined £2m (reduced from a previous judgement of £4m) for poor information reporting and covering up misleading leakage data.
Despite improvements, according to
Ofwat, the percentage of leakages from 2010 to 2011 was the highest in England and Wales, at 27%, representing 0.5 billion litres (500,000
tonnes
The tonne ( or ; symbol: t) is a unit of mass equal to 1000 kilograms. It is a non-SI unit accepted for use with SI. It is also referred to as a metric ton to distinguish it from the non-metric units of the short ton ( United States ...
) per day.
On 11 March 2016, Severn Trent customers in Derbyshire were issued a "do not use" notice due to high levels of
chlorine
Chlorine is a chemical element with the symbol Cl and atomic number 17. The second-lightest of the halogens, it appears between fluorine and bromine in the periodic table and its properties are mostly intermediate between them. Chlorine is ...
detected in the water supply, leaving thousands of households without a clean, reliable water supply.
Reservoirs

The company operates a number of
reservoirs, many of which are accessible for recreational use. These include:
*
Carsington Reservoir
Carsington Water is a reservoir operated by Severn Trent Water located between Wirksworth and Kniveton in Derbyshire, England. The reservoir takes water from the River Derwent at Ambergate during winter months, pumping up to the reservoir by l ...
– River Derwent compensation flow pumped storage facility
*
Upper Derwent Valley (
Derwent,
Howden
Howden () is a market and minster town and civil parish in the East Riding of Yorkshire, England. It lies in the Vale of York to the north of the M62, on the A614 road about south-east of York and north of Goole, which lies across the ...
and
Ladybower Reservoirs) – Built by the Derwent Valley Water Board to supply the cities of
Sheffield
Sheffield is a city status in the United Kingdom, city in South Yorkshire, England, whose name derives from the River Sheaf which runs through it. The city serves as the administrative centre of the City of Sheffield. It is Historic counties o ...
,
Derby
Derby ( ) is a city and unitary authority area in Derbyshire, England. It lies on the banks of the River Derwent in the south of Derbyshire, which is in the East Midlands Region. It was traditionally the county town of Derbyshire. Derby gain ...
,
Nottingham
Nottingham ( , locally ) is a city and unitary authority area in Nottinghamshire, East Midlands, England. It is located north-west of London, south-east of Sheffield and north-east of Birmingham. Nottingham has links to the legend of Robi ...
and
Leicester
*
Draycote Water
*
Foremark Reservoir
*
Shustoke Reservoir
Shustoke is a village in the North Warwickshire district of the county of Warwickshire in England.OS Explorer Map 232 : Nuneaton & Tamworth: (1:25 000) : The population of the civil parish at the 2011 census was 549. It is situated 2.5 miles nor ...
*
Tittesworth reservoir
*
Ogston Reservoir
Ogston Reservoir is a reservoir operated by Severn Trent Water in Derbyshire. It is near the villages of Brackenfield and Ashover and the town of Clay Cross.
The reservoir takes its water from the River Amber and was originally created to suppl ...
*
Linacre Reservoirs
Linacre Reservoirs is a series of three reservoirs on the western outskirts of Chesterfield, Derbyshire. The village of Old Brampton lies 500m to the south of the reservoirs.
Linacre Lower Reservoir (storage capacity of 140 million litres, 9 ...
(non operational since 1995)
*Severn Trent Water also runs the filtration works at the
Elan Valley Reservoirs
See also
*
Biffa (formerly a subsidiary of Severn Trent, which was de merged)
References
External links
Severn Trent plc official websiteSevern Trent Water HomepageSevern Trent Services Analytical Services, formerly Severn Trent Laboratories
{{Authority control
Companies based in Coventry
Renewable resource companies established in 1974
Companies listed on the London Stock Exchange
Former nationalised industries of the United Kingdom
Water companies of England
Water supply in Birmingham, West Midlands