ATLANTIC OCEAN – A safety officer monitors a diver inside one of the two hyperbaric chambers on the deck of the Shelia Bordelon, May 16, 2019. After diving on the tanker Coimbra wreck 180 feet below the surface, they must spend two hours safely decompressing in the hyperbaric chamber. The U.S. Coast Guard has contracted Resolve Marine Group to conduct a full assessment of oil remaining on the Coimbra wreck, located approximately 30 miles southeast of Shinnecock, N.Y. If substantial oil still remains, and if feasible, the Coast Guard will work with Resolve Marine Group to remove oil from the wreck in order to reduce pollution risks to the environment. The Coimbra, a British-flagged supply ship, sunk off the coast of Long Island in January 1942 when a German U-boat torpedoed it. (U.S. Coast Guard photo by Chief Warrant Officer Allyson E.T. Conroy)