Reuters: West Virginia Governor Earl Ray Tomblin on Tuesday signed a bill regulating above-ground chemical storage tanks, a measure prompted by a spill in January that tainted water supplies for some 300,000 people. The new law requires above-ground tanks in critical areas near public water supplies to be registered with the state Department of Environmental Protection, which will perform annual inspections. "The Elk River chemical spill has made us all - in our communities and across our nation - take...