"Gov. Terry Branstad and state lawmakers are working to put the state agriculture department in charge of key water-quality programs, a move critics fear will undercut the state's ongoing struggle to clean waterways choked with silt, algae and worse."

"In the last 150 years, prospectors and energy companies have drilled as many as 12 million holes across the U.S. in search of oil and gas. Many were plugged after they dried up. But hundreds of thousands were simply abandoned and forgotten, often leaving no records of their existence. Government reports have warned for decades that abandoned wells can provide pathways for oil, gas or brine-laden water to contaminate groundwater supplies or to travel up to the surface."

"Average lead levels at [Chicago's] Perez Elementary School were at or above federal limits during three three-month periods in 2010, the data show."

Neighbors say the land dumping of drilling mud strips the paint off of their houses. The Texas Railroad Commission says it's not a problem.

"In an unprecedented policy shift, inspectors in Pennsylvania have been ordered to stop issuing violations against drillers without prior approval from Gov. Corbett's new environmental chief."

"With birds chirping and temperatures warming , spring is finally in the air. But for University of Toronto Scarborough (UTSC) environmental chemist Torsten Meyer, springtime has a dark side."

"The federal government promoted some uses of coal ash, including wallboard or filler in road embankments, without properly testing the environmental risks, according to a report from the Environmental Protection Agency's inspector general."

"An estimated 352,000 pounds of lead washed into Lake Coeur d'Alene on Jan. 18 after flooding related to a rain-on-snow event."

Minnesota's Pollution Control Agency is trying to address the impact of dissolved chlorides in Twin Cities lakes -- road salt harming aquatic life. It may require changes in what it means to be a good neighbor in the snowy state.