answers: 1977
context: has always been 100% during the times in which it was added. Water fluoridation was introduced in Western Australia in Perth in 1968, and is regulated by the Fluoridation of Public Water Supplies Act 1966. As of 2012, around 92% of the population is provided with fluoridated water through a drinking water supply. An exception exists in the Busselton, Vasse and Wonnerup townsites (approximately 20,000 residents), where fluoride is not artificially added to the water because it has naturally occurring fluoride. Proposals for the addition of fluoride to a public water supply or matters relating to the Act and its </s> involved constructing a flowline of from a dam at Sooke Lake to a holding reservoir to be constructed at the Humpback Road near Goldstream. From there a pipeline would run about through the Helmcken Fields and along Burnside Road to a distribution point in the city at Fountain Square. The initial contract for the construction work was awarded to Solomon Cameron and Parker Clarke of the Westholme Lumber Co. in December, 1911. The work began in January, 1912. Problems with the Westholme company led to two significant moves in 1912. First, Charles Henry Rust, who had been the City Engineer </s> where possible. Supplies south of Elliott have naturally occurring fluoride at levels sufficient to provide an oral health benefit. Approximately 9% of the population of Northern Territory have naturally fluoridated water. As of 2012, 70% of the population in the Northern Territory has access to fluoridated water, and there are plans to extend access to more residents by 2015. Fluoride was first added to the drinking water for the Victorian town of Bacchus Marsh in 1962, with Melbourne beginning fluoridation in 1977. The towns of Portland, Nhill, Port Fairy, Barnawartha, and Kaniva have naturally occurring fluoride in their drinking water.
question: when was fluoride added to water in melbourne