 In 1974 the Thames Conservancy became part of the new Thames Water Authority.When Thames Water was privatised in 1990, its river management functions were transferred to the National Rivers Authority, in 1996 subsumed into the Environment Agency.In 2010, the Thames won the world's largest environmental award at the time, the $350,000 International Riverprize, presented at the International Riversymposium in Perth, WA in recognition of the substantial and sustained restoration of the river by many hundreds of organisations and individuals since the 1950s.