gelman

Third Sister Lake, the lake where Dan Bicknell first found contamination in 1984.

Environment & Climate Change

Forty years on, future of contaminant plume under Ann Arbor still murky

Elinor Epperson

On this day in 1984, a University of Michigan graduate student reported groundwater contamination to state authorities.

The Michigan Department of Environment, Great Lakes, and Energy tracks the spread of a plume of 1,4-dioxane in the groundwater under Ann Arbor and Scio Township. The USEPA has proposed adding the contaminated site to the federal Superfund list.

Environment & Climate Change

US EPA proposes adding Gelman plume to Superfund list

Lester Graham

The U.S. Environmental Protection Agency is proposing a the plume of 1,4-dioxane spreading from the site of the former Gelman Sciences facility near Ann Arbor be added to the federal Superfund list.

Environment & Climate Change

Whitmer supports federal Superfund status for Gelman plume contaminating Ann Arbor's groundwater

Tracy Samilton

Local officials and advocates have asked that the site be included on the National Priorities List to bring more resources to bear on site monitoring and remediation.

Environment & Climate Change

Appeals court vacates cleanup order in Gelman dioxane case

Brett Dahlberg

The ruling means Gelman Sciences is no longer bound by a consent judgment to accelerate treatment of contaminated groundwater and soil.

Environment & Climate Change

Recent tests show very low levels of dioxane in Ann Arbor's drinking water

Virginia Gordan

The city of Ann Arbor has detected very low levels (0.039 parts per billion) of 1,4 dioxane in its drinking water for the second time. Similar levels…