page_title: Thames Water
section_title: Performance
hierarchical_section_title: Thames Water / Performance
caption_attribution_description: English: Water Works. A relatively new addition to the Thames Water sewage works at Halfway Reach.
context_page_description: Thames Water Utilities Ltd, known as Thames Water, is the monopoly private utility company responsible for the public water supply and waste water treatment in large parts of Greater London, Luton, the Thames Valley, Surrey, Gloucestershire, Wiltshire, Kent, and some other areas of the United Kingdom. Thames Water is the UK's largest water and wastewater services company, and supplies 2.6 billion litres of drinking water per day, and treats 4.4 billion litres of wastewater per day. Thames Water's 15 million customers comprise 27% of the UK population.
  Thames Water is responsible for a range of water management infrastructure projects including: the Thames Water Ring Main around London; the Lee Tunnel; Europe's largest wastewater treatment works and the UK's first large-scale desalination plant, both at Beckton. Thames Water awarded Bazalgette Tunnel Ltd the contract to build the £4.2 billion London Tideway Tunnel Infrastructure proposals by Thames Water include the proposed reservoir at Abingdon, Oxfordshire, which would be the largest enclosed or bunded reservoir in the UK.
context_section_description: Every day, Thames Water abstracts / extracts, treats and supplies 2.6 billion litres (570 million imperial gallons) of potable tap water from 100 water treatment works via 288 clean water pumping stations through 31,100 km (19,300 mi) of managed water mains to 9 million customers (3.6 million properties) across London and the Thames Valley. It maintains 30 raw water reservoirs and 235 underground service reservoirs. As well as direct customers, Thames Water supplies bulk clean water to some inset companies. Other inset companies maintain their own independent means of supply.
  Likewise, it daily removes, treats and disposes 4.4 billion litres (970 million imperial gallons) of wastewater from 15 million customers (5.1 million properties) using 2530 sewage pumping stations through 109,400 km (68,000 mi) of managed sewerage mains to 348 sewage treatment works across an area of 13,000 km² (5,000 sq mi) of South England. On 1 October 2011, it adopted 40,000 km (25,000 mi) - an additional 60% - of private sewers and lateral drains to add to its then stock of 68,000 km (42,000 mi) giving a new network of 108,000 km (67,000 mi). By 2015, this figure had grown to 109,400 km (68,000 mi) managed sewerage mains. Before 1 October 2016, it is obliged to adopt 5,000+ private sewage pumping stations to add to its current stock of 2530 managed sewage pumping stations  Again, Thames Water treats and disposes bulk sewage on behalf of some inset companies.
  Thames Water produces biosolid fertiliser as a by-product from the waste treatment, and supplies this to local farms.
  It also recovers phosphates – an increasingly important source of a dwindling naturally occurring mineral.
  As of 2013, it recovered approximately 18 MW (156 GWh per year), or 12.5% of its total energy requirements from renewable electricity generated from biogas collected from the sewage. Further biogas capacity, the burning of 'fatbergs' removed from London's sewers and substantial solar farms have enabled the company to announce a 2015–16 target of generating 36 MW (318 GWh per annum) or 20% of its total energy requirements from renewable sources, a 2020 target of self-generating 33% of electricity needs, and a commitment to 100% renewable energy eventually.
caption: Sewage Treatment Works at Crossness
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