killing 26,000 fish. Between 14 and 16 August 2011, Thames Water polluted the Faringdon Stream, in Faringdon, Oxfordshire. The company was fined £10,000 and ordered to pay costs of £4,488 On 29 October 2011, Thames Water released thousands of tonnes of raw sewage into the River Crane in Greater London, killing thousands of fish, when a six-tonne valve jammed during routine maintenance. Despite tankering and alternative routing, the volume of sewage from Heathrow overwhelmed the operations. Thames Anglers Conservancy's Robin Vernon said: “It will take a decade to repair all the damage done by the sewage spill. Everything in there is just dead now.” In 2013, fungus and slime in the River Crane was attributed to runoff of de-icer from Heathrow getting into the river In 2014, Thames Water blamed recent pollution on fat poured down drains by local customers. On 9 December 2011, Thames Water was fined £60,000 after releasing sewage sludge into the Foudry Brook killing up to 20,000 fish in a three-mile stretch from Silchester, Hampshire. In September 2012, clogged-up pumps caused sewage to be released into the Chase Brook, near Newbury. A £250,000 fine imposed in August 2014 was adjudged "lenient" on appeal in 2015. The pumps were replaced by improved pumps. In January 2016, Thames Water was fined a record £1m for polluting the Grand Union Canal in Hertfordshire between July 2012 and April 2013. In addition, it was required to pay costs of £18,000 and a victim surcharge of £120. In its defence, Thames Water said it had spent £30,000 replacing equipment at Tring. On Christmas Day 2016, the Thames Water Hampton pump failed and as a consequence, thousands of Londoners in the TW and W postcode areas were left without water. In December 2018, Thames Water was fined £2m for polluting two brooks near Milton-under-Wychwood in Oxfordshire. On 8 and 9 August 2015, raw sewage was discharged into the water, killing 150 fish. It was also forced to pay legal costs of £79,991.57. In July 2019, Thames Water was fined £607,000 for polluting the Maidenhead Ditch and the River Cut in Berkshire. In June 2014, raw sewage and treated sewage was discharged into the Maidenhead Ditch. Thames Water has a licence to discharge sewage into the watercourse in storm conditions. However, in June 2014 there were no extreme weather events which would allow the company to discharge untreated sewage. The company also did