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.

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.

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."

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.

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."