The slab of weathered crude and sand was more than 160 feet long . A team from the University of Texas at Austin used a remotely operated vehicle to survey the site in late July. Natalie Murphy , a Coast Guard spokeswoman . Louisiana is the last state where Deepwater Horizon cleanup continues .
The slab of weathered crude and sand was more than 160 feet long . A team from the University of Texas at Austin used a remotely operated vehicle to survey the site in late July. Louisiana is the last state where Deepwater Horizon cleanup continues .