In addition to water abstracted locally from the Thames the works also receives water from other sources. Water is supplied via the Staines Reservoirs Aqueduct (built 1902) from the King George VI Reservoir (1947) and Staines Reservoirs (1902) which receive their water from the River Thames at Hythe End, just above Bell Weir Lock. The aqueduct passes, and transports water from, the Queen Mary Reservoir (1924) and the Water Treatment Works at Kempton Park, which used to be connected to Hampton via the Metropolitan Water Board Railway. Water was also supplied from the Knight and Bessborough Reservoirs (1907) and the Queen Elizabeth II Reservoir (1962) on the opposite (south) side of the Thames. The Hampton works is also the starting point of the Thames-Lea tunnel (1960) which transfers water to the reservoirs in the Lea Valley.