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Combined Sewer System. The change in the river's water flow was estimated to provide enough treatment-by-dilution for up to a population of three million. [1] However, in 1908, it became clear to the Chicago Sanitary District that the city’s population was continuing to grow and that the population would soon exceed the treatment capacity that the canal offered.
The water cribs in Chicago are structures built to house and protect offshore water intakes used to supply the City of Chicago with drinking water from Lake Michigan. Water is collected and transported through tunnels located close to 200 feet (61 m) beneath the lake, varying in shape from circular to oval, and ranging in diameter from 10 to 20 ...
In 1910, the North Shore Channel was completed to provide drainage for the marshy areas north of the city and to direct lake water into the North Branch of the Chicago River for dilution. The Cal-Sag Channel was ready for operation in 1922, which also was the year the first treatment plant of the Sanitary District of Chicago was completed.
The water the reclamation plant treats is not clean enough to drink, and most municipalities in the area get their drinking water from either the city of Chicago or the city of Evanston.
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]
Lake Calumet is the largest body of water within the city of Chicago. Formerly a shallow, postglacial lake draining into Lake Michigan, it was transformed into an industrial harbor during the 20th century. [1] Parts of the lake have been dredged, and other parts reshaped by landfill.
CHICAGO (AP) — Hundreds of people in a southern Illinois town were ordered to evacuate Tuesday as water rolled over the top of a dam, just one perilous result of severe weather that raged ...
The city of Chicago is allowed to remove 3,200 cubic feet per second (91 m 3 /s) of water from the Great Lakes system; about half of this, 1 billion US gallons per day (44 m 3 /s), is sent down the Chicago River, while the rest is used for drinking water. [68]