1,4-Dioxane, considered by the U.S. Environmental Protection Agency (EPA) to be a probable human carcinogen, is highly mobile in groundwater and resistant to both traditional remediation techniques and naturally occurring biodegradation. 1,4-Dioxane has been used as a solvent in a variety of manufacturing processes, including petroleum refining, electroplating, and chemical manufacturing, as well as a stabilizer and corrosion inhibitor in chlorinated solvents. Although a federal maximum contaminant level (MCL) for drinking water has not been established, some states, including Ohio, have established chronic ingestion risk-based screening values. Investigating 1,4-dioxane contamination requires special consideration towards investigative techniques, site-specific geology and hydrogeology, and potential receptors. Please join August Mack for a webinar providing an introduction to investigative approaches to 1,4-dioxane contamination with a focus on chemical fate and transport.