GIF of highest dioxane readings to date by year for Pall/Gelman/Danaher groundwater contamination site
Dioxane graphs for northernmost wells with screen elevation 720-780 (Prezi presentation)
1992 & 2015 Dioxane Plumes (i.e. before cleanup began and after 23 years of cleanup)
Pall/Gelman Dioxane vs Old City Landfill - on Google earth
Interactive 2009 Dioxane Plume Map in Google Earth
Google Earth Article in Solstice - An Electronic Journal of Geography and Mathematics (12.4 MB pdf)
even more in subpages below...