"Shipwreck Discovered in Lake Erie Could Be Toxic, Long-Sought Argo"

"CLEVELAND, Ohio -- An amateur shipwreck hunter may have stumbled upon one of the greatest threats to the Great Lakes.

Federal and local officials have scheduled a news conference Sunday morning to discuss the threat posed by a shipwreck about 15 miles northeast of Lakeside, Ohio.

Officials said they are working to identify the source of what appears to be a petroleum leak. It does not appear the leak poses a threat to anyone who does not breathe in fumes, the Coast Guard said.

Tom Kowalczk, a member of the the Cleveland Underwater Explorers, discovered the underwater mass in August. His sleuthing led him to believe he had found the Argo, a long-sought vessel ranked by the National Oceanic and Atmospheric Administration as the shipwreck with the greatest potential to create an environmental disaster on the Great Lakes."

Brandon Blackwell reports for the Cleveland Plain Dealer October 24, 2015.