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By March, 2012, the MWRD selected the optimal technology for disinfecting the treated water at the Calumet and O'Brien Water Reclamation Plants after a blue ribbon task force evaluated all available disinfection technologies using a triple bottom line approach that considered economic, environmental and social criteria. [11]
It draws raw water from two of the city's water cribs far offshore in Lake Michigan and supplies two thirds of City of Chicago consumers in the northern, downtown, and western parts of the city and to many northern and western surrounding suburbs. The plant was constructed in the 1960s and began functioning in 1968. [1]
Named after Chicago Mayor Edward Fitzsimmons Dunne, who was in office at the time crib plans were approved, the 110-foot (34 m) diameter circular crib stands in 32 feet (9.8 m) of water and houses a 60-foot (18 m) diameter interior well connected to two new tunnels. The Dunne Crib is situated 50 feet (15 m) from the 68th Street Crib and ...
The Chicago Harbor Lock, also known as the Chicago River & Harbor Controlling Works, is a stop lock and dam located within the Chicago Harbor in Chicago, Illinois at the mouth of the Chicago River. It is a component of the Chicago Area Waterway System , and is used to control water diversion from Lake Michigan into the river and for navigation.
The station serves most of the northwest side of Chicago and several surrounding suburbs that purchase water from Chicago. Seven steam driven pumps are used to pump water. The venturis at the station do not have bronze throat-liners, unlike those at other Chicago-area pumping stations, but this is not reported to be a problem (B. Whalin, USDA ...
The plant was under construction for many years, slowed by the Great Depression. Its construction was approved in 1930 and the plant began operation in 1947. [2] Water is drawn from a crib in Lake Michigan that has an intake about 20–30 feet below the surface of the lake and is then drawn through a tunnel below the lake bed to the treatment plant, and then put through several steps to filter ...
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