Stories indexed with the term ‘environmental cleanup’

Hearing Set for Pall Dioxane Cleanup

New documents related to the cleanup of a 1,4 dioxane groundwater plume in the Ann Arbor area, resulting from contamination by the former Scio Township manufacturing site of Gelman Sciences (now owned by Pall Corp.), have been posted on the Michigan Dept. of Environmental Quality website. Specifically, on Oct. 26, 2011, Pall filed a petition with the court stating that “if it is required to install additional compliance monitoring wells it will dispute the location of such wells.” In a response filed Nov. 7, the state argued that a consent judgement issued by the court doesn’t prohibit the installation of additional monitoring wells for the purpose of monitoring compliance with court-ordered cleanup. The state further argues that Pall’s proposed monitoring-well network is … [Full Story]

Bioremediation Possible for Southeast Park

Matt Naud, the city’s environmental coordinator, solicited a recommendation from the Ann Arbor park advisory commission at its Oct. 18, 2011 meeting regarding whether to pursue a bioremediation pilot test in a section of Southeast Area Park, a 26.5-acre city park at Ellsworth and Platt roads. The test would determine if technology to remove an existing vinyl chloride plume is effective.

The plume resulted from vinyl chloride being released from the now-closed city landfill into groundwater on the south side of Ellsworth Road. Currently, extraction wells are used to pull the groundwater and contaminants back to the extraction wells where the water is discharged to the sanitary sewer for treatment.

The pilot project would test a different type of remedial process called bioremediation, … [Full Story]

Packard Square Brownfield Project Debated

Washtenaw County board of commissioners working session (May 5, 2011): Continuing a debate that began at their regular board meeting the previous day, county commissioners spent part of their most recent working session getting more information about a brownfield proposal for the Packard Square project in Ann Arbor.

Tony VanDerworp, Conan Smith, Dan Smith

Tony VanDerworp, left, talks with Washtenaw County commissioners Conan Smith and Dan Smith before a May 5, 2011 working session. VanDerworp is director of the economic development & energy department, which manages the county's brownfield program.

The board had been asked at its May 4 meeting to give initial approval of a $1 million grant application and $1 million loan from the Michigan Dept. of Natural Resources and Environment, for brownfield cleanup at the proposed Packard Square development. The board was also asked to authorize designation of the county’s full faith and credit as a guarantee for any loan that might be awarded, up to $1 million.

It was that guarantee that raised concerns among some commissioners, who were uncomfortable putting the county potentially on the hook for a private developer – especially as the county faces a $17.5 million deficit over the next two years.

Also was a concern that the developer – Bloomfield Hills-based Harbor Companies – had not paid off back taxes owed on the site.

Commissioners discussed having county staff talk with representatives of the city of Ann Arbor, to ask whether the city would be willing to back the loan, rather than the county. The site plan and brownfield plan for Packard Square had been approved by the Ann Arbor city council on Monday, May 2.

Subsequent to the May 5 working session, the county board announced that it will hold a special working session on Tuesday, May 17 to continue discussion of the Packard Square project and a possible change to the county’s full faith and credit policy. That meeting is set to begin at 6:30 p.m. at the Washtenaw County administration building, 220 N. Main St. in Ann Arbor.

In addition, the Packard Square grant and loan application, along with the project’s brownfield plan, is on the agenda for initial approval at the board’s May 18 meeting. A public hearing on the brownfield plan is also scheduled that night. [Full Story]

Residents Frustrated by Dioxane Decision

About 50 residents gathered at Ann Arbor’s Abbott Elementary School late last month to get an update – and raise concerns – over a new consent judgment that changes the cleanup requirements of 1,4 dioxane contamination caused by the former Gelman Sciences manufacturing plant in Scio Township.

Matt Naud

Matt Naud, the city of Ann Arbor's environmental coordinator, points to his home on a 3D map of the Pall-Gelman 1,4 dioxane plume. The map was constructed by Roger Rayle, a leader of Scio Residents for Safe Water, who brought it to the March 30 public meeting about a new consent judgment related to the plume. (Photos by the writer.)

Mitch Adelman, a supervisor with the Michigan Dept. of Environmental Quality’s remediation division, began the March 30 meeting by acknowledging the crowd’s reaction to the new agreement, which was issued earlier in the month without opportunity for public input. “I don’t expect anything I say or do tonight to alleviate your anger or frustration,” he said.

But Adelman noted that if a company like Pall – which owns the former Gelman Sciences site – proposes a remediation plan that complies with state law, “we’re obligated to accept it.”

For nearly three hours, Adelman and Sybil Kolon, MDEQ’s project manager for the Pall site, gave an update and answered questions about the new consent judgment, the history of the cleanup, and what residents might expect in the coming years. They were challenged throughout the evening by people who’ve been following this situation closely – most notably by Roger Rayle, a leader of Scio Residents for Safe Water and member of the county’s Coalition for Action on Remediation of Dioxane (CARD). Rayle has been tracking the dioxane plume for many years, and presented his own graphical renderings of data to the group.

The meeting was attended by several elected officials: Ann Arbor city councilmembers Stephen Rapundalo (Ward 2) and Mike Anglin (Ward 5); Ann Arbor Township supervisor Mike Moran; county commissioner Yousef Rabhi (District 11); and Sarah Curmi, chief of staff for state Sen. Rebekah Warren, whose district covers a large portion of Washtenaw County, including Ann Arbor and Scio Township, where the plume is concentrated. [Full Story]

Concerns Raised over Dioxane Cleanup

A section from a map showing the Pall Life Sciences 1,4 dioxane plume. The red dots indicate monitoring wells.

A section from a map showing the Pall Life Sciences 1,4 dioxane plume. The red dots indicate monitoring wells. (Image links to a .PDF file of the full map.)

An effort to change the cleanup of contaminated groundwater has come under fire by local residents and government officials who’ve been keeping an eye on the issue for more than 20 years.

At Wednesday’s annual meeting of the Coalition for Action on Remediation of Dioxane, residents said that requested changes filed by Pall Life Sciences earlier this month with the Michigan Department of Environmental Quality would allow higher amounts of the contaminant, 1,4-dioxane, in the groundwater. As a result, they said, the 1,4-dioxane, a presumed carcinogen, could flow northward and reach Ann Arbor’s primary drinking water supply at Barton Pond. [Full Story]