The UK water regulatory authority "Ofwat" is considering imposing a record fine of £168 million against three water companies in the United Kingdom, primarily Thames Water, for discharging significant amounts of sewage into watercourses or on the coast. Thames Water, which supplies water to London and its surrounding areas, is set to pay £104 million, marking the largest fine ever imposed by the regulatory authority. Additionally, Yorkshire Water faces a potential fine of £47 million, while Northumbrian Water could face a £17 million fine in the first round of penalties proposed by Ofwat following what is described as "the largest investigation ever conducted," according to a statement released by the regulatory body on Tuesday. The water sector in the UK is experiencing a crisis due to a lack of investment in a sewage system dating back to the Victorian era. Valves designed to release surplus water during emergencies into the sea and watercourses during storms have been widely used beyond their intended purpose. This has resulted in pollution along the coast and waterways due to large-scale sewage discharge across the country, while British authorities have faced pressure for years to address this problem.