The US Coast Guard has discovered a 4,100-pound tar mat under the sand around Louisiana’s southernmost port. It is believed to be left over from the 2010 BP Deepwater Horizon oil spill.
The tar mat was uncovered while the Gulf Coast Incident Management team combed the coast following Tropical Storm Karen, which developed in southern portions of the Gulf of Mexico in early October.
According to a team spokesman, the mass on Fourchon Beach is 80 to 90 percent sand, shell, and water and 10 to 20 percent oil.
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