Tom and Michelle Joliat's lovely home in Metamora, Michigan is situated high on a hill with a stunning view of the woods below. Normally, it's peaceful and idyllic here. Metamora Township is a rural area about 25 miles southeast of Flint. But in the distance, you can sometimes hear the faint drone of the U.S. EPA drilling yet another monitoring well. The wells are monitoring the movement of a plume of groundwater contaminated with 1,4 dioxane and other toxic chemicals.