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R.C. Harris Water Treatment Plant


The R. C. Harris Water Treatment Plant in Toronto, Ontario, Canada, is both a crucial piece of infrastructure and an architecturally acclaimed historic building named after the longtime commissioner of Toronto's public works R.C. Harris. It is located in the east of the city at the eastern end of Queen Street and at the foot of Victoria Park Avenue along the shore of Lake Ontario in the Beaches neighbourhood.

With an early 20th-century Toronto plagued with water shortages and unclean drinking water, public health advocates such as George Nasmith and Toronto's Medical Officer of Health, Dr. Charles Hastings, campaigned for a modern water purification system.

The structure was constructed on the former site of Victoria Park, a waterfront amusement park that operated until 1906. Construction on the plant began in 1932 and the building became operational on November 1, 1941. The building, unlike most modern engineering structures, was also created to make an architectural statement. Fashioned in the Art Deco style, the cathedral-like structure remains one of Toronto's most admired buildings. It is, however, little known to outsiders. The interiors are just as opulent with marble entryways and vast halls filled with pools of water and filtration equipment. The plant has thus earned the nickname The Palace of Purification.

Despite its age, the plant is still fully functional, providing approximately 45% of the water supply for Toronto and York Region. The intakes are located over 2.6 kilometres (1.6 mi) from shore in 15 metres (49 ft) of water, running through two pipes under the bed of the lake. Water is also chlorinated in the plant and then pumped to various reservoirs throughout the City of Toronto and York Region.

The facility grounds have been made available to the public. Despite some concerns of vulnerability to an attack on the water supply since the September 11, 2001 attacks, the grounds have remained open to the public, but security has been increased. In the summer of 2007, construction began on the installation of an underground Residual Management Facility allowing processed waste to be removed before discharging into the lake. This construction has since been completed.


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