| Preliminary water tests from rivers near a huge coal ash spill in Tennessee show elevated levels of pollutants such as mercury and lead, a environmental group said on Friday. "We're concerned that the water poses a greater risk to residents in the area than has been revealed so far," said Matt Wasson, a program director at Appalachian Voices. An earthen dike collapsed on December 22 at the TVA's coal-fired power plant |



