"KALAMAZOO, Mich. -- The U.S. Environmental Protection Agency is ordering Enbridge Inc. to do additional dredging in the Kalamazoo River to clean up oil from a massive 2010 spill."

"Hulking, pitch-black mounds resembling coal have grown exponentially in the last week along the banks of the Detroit River in southwest Detroit, prompting concern about potential pollution from residents and legislators on both sides of the river."

"MADISON, Wisc. -- Assembly Republicans sent Gov. Scott Walker a bill Thursday that could clear the way for a miles-long iron ore mine in northern Wisconsin, handing the GOP governor a victory that eluded him last year."

"CLEVELAND, Ohio -- A federal grand jury returned an indictment against the owner of an oil and gas drilling company on Thursday, charging him with violating the Clean Water Act by dumping more than 20,000 gallons of fracking waste into a river in Youngstown."

"The number of Detroit children with lead levels exceeding a newly revised federal guideline has dropped more than 70 percent, from about 10,000 kids to 2,900 since 2004. Nevertheless, the number of children with elevated lead levels in Detroit and other Rust Belt cities remains much higher than the national average, and low-income people of color are most at risk."

"After nearly two decades of pollution problems and financial woes, a tire incinerator in one of Illinois' poorest communities will close permanently as part of a legal settlement announced Monday by federal authorities."

"Officials are alarmed at the lack of awareness about the invisible gas that invades homes."

"Federal officials vowed Wednesday to conduct an emergency cleanup of a lead-contaminated lot near a Pilsen elementary school, more than six years after authorities first identified the hazards."

"YOUNGSTOWN, Ohio -- Backlash over Hard Rock Excavating’s decision to dump thousands of gallons of fracking waste into a storm drain continued Wednesday with sharp criticism of both state law and the oil and gas industry."

"COTTRELLVILLE, Mich. -- The fight has been under way for several years, but the momentum may have peaked on a night in June 2011. That was the night of a community meeting in Marine City to discuss a startling spate of rare kidney cancers identified in area children -- one as young as 5 months."

"PRESTON TOWNSHIP, WIS. -- When the biggest frac-sand mine in Trempealeau County opened here in 2011, even the dead were shown consideration."

"Levels of PFOS, a chemical manufactured by 3M Co. for a variety of commercial uses until about 10 years ago, have improved significantly in the Mississippi River between Hastings and St. Paul -- except for the area around the company's Cottage Grove plant, where they have worsened."

"An antibiotic widely used in soaps and cosmetics that mostly goes down the drain is slowly converting to toxins at the bottom of many of Minnesota's lakes and rivers."

"Shipping companies are making a case to Congress for more money to dredge Great Lakes ports and waterways. With water levels near a record low, ports are losing the battle against sediment."

"MURDOCK -- In the late 1980s, Zala Swigart worked at the Murdock coal mine, weighing the trucks hauling coal out of the underground operation that's less than a mile from where she lives."