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CHICAGO STORMWATER MANAGEMENT
Chicago installed tree tubs and permeable pavement at Navy Pier; it helps capture stormwater while reducing annual pollution by 3 lb of phosphorus, 47 lb of nitrogen and 2 tons of sediment- Chicago planted a 20,300-square-foot green roof on City Hall; EPA says its surface can be about 100°F cooler than nearby conventional roofs and saves nearly $5,000 in energy each year
- In 2011, Illinois' Algonquin secured $1 million for a Woods Creek watershed plan. 10 years later, 27 projects costing $4.8 million had reduced pollution and improved the watershed for residents
- In 1972, Chicago began digging 110 miles of sewer tunnel up to 300 feet down; 50 years on, the Deep Tunnel has captured more than a trillion gallons of combined sewageChicago's Deep Tunnel project has been a vital safeguard for Lake Michigan over the past fifty years. Initiated in 1972, this impressive 11...26 Aug, 2026, 03.00 PM IST
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