Piles of Midwest 'petcoke' raising residents' ire

Petroleum coke, or petcoke, in late October is watered down where it is stored along the Calumet River on Chicago's Southeast Side. The byproduct of oil refining has been piling up along Midwest shipping channels and sparked waves of environmental concerns. The rapid increase in petcoke piles has taken residents, health and environmental regulators and elected officials by surprise. 

November 25, 2013 4:48 pm  • 
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