Michigan U.S. Rep. Gary Peters has taken to the House floor to criticize the storage of piles of an oil-refining byproduct known as petroleum coke along the Detroit River.
The suburban Detroit Democrat failed to win approval for an amendment to legislation on the Keystone Pipeline requiring an investigation of the storage. He said Wednesday that Congress needs to act to protect "families and natural resources like the Great Lakes from the threat of contamination."
Peters and fellow U.S. Rep. John Conyers have asked the Michigan Department of Environmental Quality to investigate whether Detroit Bulk Storage complies with state regulations. The department has said it doesn't see an immediate environmental threat.
The piles result from Marathon Oil's refining exports from oil sands in Alberta.