"High levels of perchlorate were found in the Mojave Desert city's water supply. Residents have been flocking to grocery stores to buy water, and the school district is prepared to provide students with bottled water when classes resume Monday."

"A widespread method of extracting natural gas by shooting chemical-laced water underground is a growing threat to water supplies in 28 states, say scientists, landowners and environmentalists." A Scripps Howard investigation finds overwhelmed state inspectors, thousands of violations, regulators paid by drilling royalties, political campaigns flush with gas money, and a system stacked for drillers and against public health.

"The activist group Environment Maryland released a report today urging Maryland and the federal government to make big poultry companies more accountable for controlling polluted runoff from farms where their birds are being raised."

"Stand before the pond known here in southwestern Pennsylvania as Little Blue Run, and you’ll see nothing that resembles its bucolic-sounding name. The one-time stream is now an industrial pond, filled with arsenic-laced waste from a coal-fired power plant."

"Exxon Mobil Corp. agreed to pay $25 million to settle a lawsuit over a decades-old oil spill and related environmental contamination in Brooklyn, New York, state Attorney General Andrew M. Cuomo said."

"After Pittsburgh City Council gave final approval Tuesday to a ban on natural-gas production in the city, industry opponents vowed to press for similar prohibitions at the Allegheny County and state levels."

The possibility of producing natural gas from shale formations beneath central Quebec is raising the same debate about its perils and promises as is raging in U.S. states.

Residents of Joliet, Illinois, worry about what coal ash in huge pits will do to their wells -- and their health.

"In a case being followed closely by some Marine veterans and their families, a federal judge has denied the Navy's request to dismiss a civil case regarding an Iowa woman's exposure to contaminated water at Marines Base Camp Lejeune, N.C."