People in many parts of the U.S. blame gas drilling for causing the water in their wells to go bad. In 2005, the Bush administration got Congress to exempt from the Safe Drinking Water Act a drilling practice called "fracking." Now environmentalists hope to repeal the exemption and the gas industry is mounting a defense.

There’s an underground threat to water that’s making it harder to clean up for drinking. The Environment Report's Julie Grant reports – it all depends on where you live and whether the people who live nearby are maintaining their septic systems.

Chevron is preparing for an unfavorable ruling in what looks like the world's largest environmental lawsuit. Dwellers in the former oilfields of Equador bitterly resent the pollution -- and the deaths they believe resulted.

The nation's largest residential lead pollution site reached a key milestone today with the signing of an EPA decision on how to clean up thousands of residential yards in eastern Omaha contaminated over decades by emissions from the former ASARCO lead refinery.

A USGS expert says the solution to problems with mercury plaguing Great Salt Lake will require more than just eliminating local sources. Also key are how it turns into harmful methylmercury and spreads through the food web.

EPA's takover of the cleanup of TVA's coal-ash spill in Tennessee came after revelations that TVA's effort to do the job by dredging threatened to become a "major toxic event."

An "eco-friendly" developer in Sweet Home, Oregon, has brought "a nightmare of garbage-dumping fines from state environmental regulators, an asbestos investigation by the U.S. Environmental Protection Agency, an investigation by Oregon charities regulators, and numerous civil lawsuits from angry creditors."