The 1,4 dioxane plume emanating from the old Gelman Sciences facility on Wagner Road in Scio Township continues to expand through groundwater in the greater Ann Arbor area. At a recent public forum, the federal Environmental Protection Agency said it would take decades to get the contamination designated as a Superfund site and clean-up could take decades beyond that. In this week's "Issues of the Environment," WEMU's David Fair talks to Washtenaw County Board of Commissioners chair Jason Morgan