water quality

Roger Rayle / Scio Citizens for Safe Water

Local citizens and scientists have amassed large amounts of information on Ann Arbor’s 1,4-Dioxane plume. Locally sourced information has been invaluable since University of Michigan student Dan Bicknell first discovered the plume.  It has continued with 23 years of data collection by Roger Rayle of Scio Residents for Safe Water.  Has the information been put to good use?  Has it informed decision-makers?  In this installment of WEMU’s “The Green Room,” Barbara Lucas continues her exploration of this ongoing issue. 


Barbara Lucas / 89.1 WEMU

In the past two decades, Michigan’s dioxane standards have seen extremes, going from 3 to 85 parts per billion (ppb).  Now 7.2 ppb is being proposed by the MDEQ.  Other states' standards are all over the map.  The EPA’s current recommended levels for dioxane exposure vary greatly as well, depending on multiple factors.   In this installment of WEMU’s “The Green Room,” Barbara Lucas looks at some reasons why it is so hard to come up with uniform guidelines for safe levels of dioxane.


Roger Rayle / Scio Residents for Safe Water

Since 1995, 4,000 prohibition zones have been put in place in Michigan to “manage risk,” i.e. prevent people from coming into contact with contaminated soil or water.  In this installment of WEMU’s “The Green Room,” Barbara Lucas looks at how the balance between cleaning up pollution versus managing the risk is playing out when it comes to the Ann Arbor area's 1.4 dioxane plume. 


Dr. Tom Bridgeman-University of Toledo / www.nature.org

The Lake Erie algae blooms in 2015  are already bigger than those in 2014. What has been done? What needs to be done? Will it get done? Find out in this month's edition of 89.1 WEMU's '1st Friday Focus on the Environment.' 


Commission's goal is to get more properties in the area certified.

http://053.housedems.com/

    

As Concerns About the Pall/Gelman Plume Linger, Rep. Jeff Irwin Pushes House Bill to Require the MDEQ to Align Contaminate Clean-up Standards with EPA Standards

Pall Life Sciences is  leaving the Ann Arbor area this summer, prompting many to become concerned about the company's commitment to ongoing remediation of 1-4, Dioxane contamination. 

Water Quality Monitoring In Huron River Watershed

Feb 13, 2013

WEMU's Bob Eccles speaks with Watershed Planner Ric Lawson about results of the Huron River Watershed Council's 2012 water quality monitoring.