Severn Trent
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Severn Trent

Severn Trent plc
Public limited company (plc)
Traded asLSESVT
FTSE 100 Component
IndustryWater industry
Founded1985; 33 years ago (1985)
HeadquartersCoventry, England, United Kingdom
Area served
Key people
Production output
  • 1.8 Gl/day (drinking)
  • 1.4 Gl/day (recycled)
Revenue£1,819.2 million (2017)[1]
£543.7 million (2017)[1]
£342.6 million (2017)[1]

Severn Trent plc is a water company based in the United Kingdom that is traded on the London Stock Exchange, and is a constituent of the FTSE 100 Index. Severn Trent, the trading name owned by the above company applies to a group of companies employing more than 15,000 people across the United Kingdom, United States and mainland Europe, with some involvement in the Middle East.

The main companies in the group are Severn Trent Water and Severn Trent Services. Severn Trent Laboratories was rebranded as part of Severn Trent Services in 2010, to streamline the company better and to give 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.


Severn Trent Water Authority was established in 1974, through the amalgamation of the pre existing water supply authorities, the Severn River Authority, the Trent River Authority and the sewage and sewage disposal responsibilities of the councils within its area.[2]

In 1989, the authority was privatised under the Water Act 1989, together with the rest of the water industry in England and Wales, to form Severn Trent Water with a responsibility to supply fresh water and treat sewage for around 8 million people living in the Midlands of England and also a small area of Wales.[3]

It took its name from the two major rivers in this area, the Severn and the Trent.[3] In May 1991, it went on to acquire Biffa, a leading waste management business.[3]

In October 2006, Biffa was demerged from the group Severn Trent, and is now listed separately on the Stock Exchange.[4] In January 2007, the American side of Severn Trent Laboratories was sold to HIG Capital.[5] In September 2007, the company announced they would be closing their headquarters in the city of Birmingham, and relocating to a custom built office complex in the centre of the city of Coventry in the autumn of 2010.[6][7]

In May 2016, the Competition and Markets Authority granted United Utilities and Severn Trent Water approval to create a new joint venture company in preparation for the water market deregulation. In June 2016, United Utilities and Severn Trent Water formed Water Plus, in readiness to provide the retail services for their non household customers.[8]

Statutory water undertakers acquired

The water authority took over the following public sector statutory water undertakers:[9]

Section 12 of the Water Act 1973 stated that "where the area of a water authority includes the whole or part of the limits of supply of a statutory water company, the authority shall discharge their duties with respect to the supply of water within those limits through the company." The following two private statutory water companies continued to supply water as before within their limits as supply but only as "agents" of the water authority:

  • East Worcestershire Waterworks Company - as from 1 September 1993, the water undertaking of this company was transferred to Severn Trent as per The East Worcester and Severn Trent Water (Amendment of Local Enactments etc.) Order 1993 (S.I. 1993 No. 2130)
  • South Staffordshire Waterworks Company

The water authority remained responsible for sewerage and sewage disposal within the limits of supply of these two companies.

Other organisations and functions acquired

The water authority took over the following public sector bulk water suppliers:

The water authority took over the following main drainage authorities, which were joint boards set up to deal with the main sewerage and sewage treatment in their respective areas:

  • Upper Tame Main Drainage Authority
  • Upper Stour Main Drainage Authority

It took over two river authorities, responsible for control of water pollution:

The water authority took over the functions responsible for sewerage and sewage disposal from all local authorities, including main drainage authorities, within its area, however section 15 of the Water Act 1973 allowed district (but not county) councils to enter into agency agreements with water authorities whereby the district councils became their "agents" for the maintenance and design and construction of new sewers.[10]


The company supplies about 4.5m households and businesses in its area.[11] 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.[12]

Regulation and criticism

In July 2007, the Mythe Water Treatment Works near Tewkesbury became inundated with water from the River Severn during the Summer 2007 United Kingdom floods. 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 and Tewkesbury.[13]

In July 2008, OWAT 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.[14] 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.[15]

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) per day.[16] On March 11, 2016, Severn Trent customers in Derbyshire were issued with a 'Do not use' notice due to high levels of chlorine detected in the water supply, leaving thousands of households without a clean reliable water supply.[17]


The company operates a number of reservoirs, many of which are accessible for recreational use. These include:

See also

  • Biffa plc (formerly a subsidiary of Severn Trent which was demerged)


  1. ^ a b c "Annual Report 2017" (PDF). Severn Trent. Retrieved 2018.
  2. ^ "Severn Trent Water Authority, 1974-1989". University of Nottingham. Retrieved 2018.
  3. ^ a b c "Working within the community". Archived from the original on 18 September 2012. Retrieved 2015.
  4. ^ Mark Milner. "Severn Trent to split its waste and water operations". the Guardian. Retrieved 2015.
  5. ^ HIG Capital affiliate completes acquisition of Severn Trent Laboratories
  6. ^ "Birmingham Post: Business news, local news, expert opinion". Retrieved 2015.
  7. ^ "We're sorry..." Archived from the original on 27 September 2011. Retrieved 2015.
  8. ^ "Severn Trent and United Utilities win approval for joint venture". The Telegraph. 3 May 2016. Retrieved 2018.
  9. ^ The Severn-Trent Water Authority Constitution Order 1973 (S.I. 1973 No.1437)
  10. ^ "Water Act 1973: Water Authorities and Local Authorities" (PDF). Archived from the original (PDF) on 15 April 2017. Retrieved 2017.
  11. ^ Severn Trent About us
  12. ^ "Coventry's new Severn Trent Centre opens to staff". Coventry Telegraph. 20 September 2010. Retrieved 2017.
  13. ^ "Battle to restore water begins". This is Gloucestershire. Retrieved 2007.[permanent dead link]
  14. ^ Ofwat confirms Severn Trent Water fine, 2 July 2008, PN 21/08, Ofwat Archived 20 August 2008 at the Wayback Machine.
  15. ^ "Just £2m penalty for Severn Trent lies over water leaks - This is Money". This is Money. Retrieved 2015.
  16. ^ "How much does your water company leak?". BBC news. 5 April 2012. Retrieved 2012.
  17. ^ "People in Derbyshire told not to use water after high chlorine scare". The Guardian. Retrieved 2016.
  18. ^ "About Linacre Reservoirs". Severn Trent Water website. Severn Trent Water. Archived from the original on 30 March 2013. Retrieved 2013.

External links

  This article uses material from the Wikipedia page available here. It is released under the Creative Commons Attribution-Share-Alike License 3.0.



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