Press Conference, Gelman Sciences, Inc. Groundwater Cleanup, September 1992 Year 1992 Month September Rights Held By Donated by the Ann Arbor News. © The Ann Arbor News. Copyright Copyright Protected Related Gelman Cleanup Accord Reached Photo Subjects Press Conferences Pall Gelman Dioxane Groundwater Contamination Cleanup History Groundwater Contamination Gelman Sciences Inc. Dioxane Plume Ann Arbor News Old News Liz Brater Benjamin Rusnak