COLUMBIA Technologies - 1,4 Dioxane - Technical Datasheet

1,4-Dioxane is a likely human carcinogen and found in groundwater at sites throughout the United States. The EPA has calculated a screening level of 0.67μg/L for 1,4-dioxane in tap water, based on a 1 in 10-6 lifetime excess cancer risk. Several states have established criteria for 1,-4-Dioxane limits and action, including Florida groundwater at 3.2ug/L, EPA NCEA tap water at 3ug/L, and EPA Regions 3, 6, and 9 at 6.1ug/L in tap water for Risk Based Concentrations, Screening Levels, and Preliminary Remediation Goal, respectively.