dioxane

Rebecca Williams / Michigan Radio

State officials talked about the Pall-Gelman dioxane plume at a town hall meeting in Ann Arbor last night. The meeting was hosted by State Rep. Jeff Irwin, D-Ann Arbor.

Washtenaw County

State Representative Jeff Irwin, D-Ann Arbor, will host a town hall this evening to talk about the Pall-Gelman dioxane plume.

The plume of 1, 4-dioxane has contaminated three square miles of groundwater under the city of Ann Arbor. The EPA says the solvent is likely to cause cancer.

The Ann Arbor city council has asked its Environmental Commission to review whether it should ask the U.S. EPA to order a Superfund cleanup of groundwater contamination.

A plume of groundwater contaminated with 1,4 dioxane from the city's now-closed Pall Gelman plant is spreading from the city limits towards Ann Arbor Township, Scio Township, as well as towards the Huron River.  

Scio Residents for Safe Water

The Michigan Department of Environmental Quality is proposing to change the state's standard for 1,4 dioxane to 7.2 parts per billion.

That's a ten-fold difference from the current standard of 85 parts per billion.  1,4 dioxane is a known carcinogen. 

The DEQ missed a December, 2015 deadline for issuing updated standards for 308 chemicals, including 1,4 dioxane. 

The agency has issued the new standard for 1,4 dioxane first, likely in response to an increased outcry from Ann Arbor city officials and residents. 

A kayak on the Huron River
Deb Nystrom / Creative Commons http://michrad.io/1LXrdJM

U.S. Rep. Debbie Dingell wants the Michigan Department of Environmental Quality to finish the job it started several years ago.

In an open letter to MDEQ director Keith Creagh, Dingell urged the state to finalize stricter cleanup standards for the chemical 1,4-dioxane.

Scio Residents for Safe Water

The Michigan Department of Environmental Quality is holding a public meeting tonight about changes to the 1,4-dioxane groundwater cleanup plan in Ann Arbor.

The meeting will be held at 7:00 p,m. at Abbot Elementary School, 2670 Sequoia Parkway, Ann Arbor.

From the MDEQ: