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St. Clair Shores Cleanup Completed for $6 Million

Chicago, IL— U.S. Environmental Protection Agency Region 5 has completed a $6 million PCB-contaminated sediment cleanup of the St. Clair Shores, Michigan, Ten Mile Drain storm sewer system.

The year-long project involved the excavation and safe disposal of more than 23,000 tons of contaminated sediment from the storm sewer system and two canals that flow behind area homes.

"We made this a high-priority cleanup," said Region 5 Administrator Tom Skinner. "We've removed all the highly contaminated sediment from the storm sewer system and cleaned up the high-concentration PCB sediment in the canals."

EPA began its St. Clair Shores emergency assessment in early March 2002 at the request of the Michigan Department of Environmental Quality.

Unexpectedly high PCB levels were discovered during routine sediment sampling in preparation for the U.S. Army Corps of Engineers' planned Macomb County-sponsored dredging project on the two canals.

EPA's emergency assessment was completed in June 2002 and involved analysis of more than 300 sediment, air, water and soil samples.

The EPA-funded cleanup began July 29. An EPA Superfund emergency response team oversaw the removal of all contaminated sediment from approximately a mile-long stretch of the underground storm sewer system as well as a 1,600-foot-long area in the two canals.

EPA contractors worked 12 to 14-hour days and six day weeks and completed the cleanup on March 21, 2003.

The highest concentration PCB materials were sent to Wayne Disposal in Belleville, Michigan. The lower-concentration, non-hazardous, materials were sent to a landfill in Lenox, Michigan.
Almost two million gallons of contaminated water was pumped out, treated and returned to Lake St. Clair. Contaminated water from the Wahby Park Pond was also treated, and the pond was refilled with city water.

With the cleanup work now complete, a four- to six-week restoration effort has begun.

 

 

 

 


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