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The Grand Calumet River is a 13.0-mile-long (20.9 km) [3] river that flows primarily into Lake Michigan. Originating in Miller Beach in Gary , it flows through the cities of Gary, East Chicago and Hammond , as well as Calumet City and Burnham on the Illinois side.
The Grand Calumet suffers from contamination from polychlorinated biphenyls (PCBs), polynuclear aromatic hydrocarbons (PAHs) and heavy metals, such as mercury, cadmium, chromium and lead. Additional problems include high fecal coliform bacteria levels, biochemical oxygen demand (BOD) and suspended solids, oil and grease.
Industrial development in the Calumet River area began around the 1870s, and by 1890 the western reach of the Grand Calumet River was heavily polluted with the waste of steel mills, foundries, a meat packing plant, and glue and cornstarch factories. Industry continued to spread along the eastern reach of the river between 1890 and 1910, with ...
The EPA established the hypoxia task force in the late 1990s to reduce nutrient pollution and shrink the dead zone, but it relies on voluntary efforts to reduce farm runoff and hasn't ...
As a groundwater aquifer, the Calumet Aquifer provides water to local surface waterways, including the Grand Calumet River and Little Calumet River. [2] The contributions can go in both directions: when the Little Calumet is in flood stage, it rises above the aquifer level and water from the river enters the aquifer. [7]
The Indiana Harbor and Ship Canal is an artificial waterway on the southwest shore of Lake Michigan, in East Chicago, Indiana, which connects the Grand Calumet River to Lake Michigan. It consists of two branch canals , the 1.25 miles (2.01 km) Lake George Branch and the 2 miles (3.2 km) long Grand Calumet River Branch which join to form the ...
Sources of pollution Impact Darling River: New South Wales, Australia: Third-longest river in Australia, and the outback's most famous waterway. [204] Pesticide runoff [205] [206] Suffered from a severe cyanobacterial bloom that stretched the length of the river in 1992. [207] Also suffered from fish kills in 2019 and 2023. [208] [209] King River
Factory farm water pollution endangers the Cape Fear River ecosystem. The river provides critical habitat for a variety of threatened and endangered species, and a nursery for fish, crab and ...