"Environment Canada says the watchdog does not have the authority to investigate complaints made in 2010 alleging that tarsands’ tailings ponds are seeping into groundwater."

"The thick mats of algae on Lake Erie that poisoned the water supply of Toledo, Ohio, were fed by a type of pollution that's all too familiar in Wisconsin."

"The U.S. Environmental Protection Agency (EPA) is not adequately monitoring more than 172,000 wells used to enhance oil and gas drilling and dispose of drilling wastewater, according to a July 28 report by the Government Accountability Office (GAO)."

After uranium mining poisoned their wells, thousands of Navajos must drive long miles to get water that is safe to drink.

"Less than six months into the job, Ohio Environmental Protection Agency Director Craig Butler grew so weary of Toledo’s mule-like response to long-documented problems at its 73-year-old Collins Park Water Treatment Plant that he entertained the very drastic — and politically explosive — idea of trying to wrest control of it away from the city."

"On Nov. 22, 2006, Paul Jennings received an email from a fellow executive at his chemical company. "As you are aware, Indonesia was planning to go lead free in 2000," the note read. "This obviously did not happen for a number of reasons and since 1st January 2000 until the present, we have supplied 28,390 [tons] of [tetraethyl lead] ... generating $277 million in revenue.""

"CHARLESTON, West Virginia — When coal-cleaning chemicals seeped into West Virginia's biggest water supply in January, the city of Cincinnati had a decision to make 200 miles downstream."

"Imperial Metals describes substance spilled from dam as 'very close to drinking water.'"

"The largest red tide bloom seen in Florida in nearly a decade has killed thousands of fish in the Gulf of Mexico and may pose a greater health threat if it washes ashore as expected in the next two weeks, researchers said on Thursday."

"An email shows federal and provincial authorities allowed Canadian Natural Resources Limited, under investigation for a serious oilsands leak, to collect some evidence in the probe."