Efforts to stem the Deepwater Horizon oil spill on top of which the new cap was located. The well integrity test was scheduled to take place after the installation of a three-ram capping stack over the lower marine riser package of the Deepwater Horizon semi-submersible rig on . On July 14, BP announced that the test would be delayed under Allen's orders; oil continued to flow into the Gulf. On July 15, 2010, BP announced that it had successfully plugged the oil leak using a tightly fitted cap. The cap, weighing 75 tons and standing high, is now bolted to the failed blowout preventer. It consists of a
Volume and extent of the Deepwater Horizon oil spill water in a "dissolved or dispersed form". On 16 August 2010, UGA scientists said their analysis of federal estimates show that 80% of the oil the government said was gone from the Gulf of Mexico is still there. The Georgia team said "it is a misinterpretation of data to claim that oil that is dissolved is actually gone". Oil began washing up on the beaches of Gulf Islands National Seashore on 1 June 2010. By 4 June 2010, the spill had landed on of Louisiana's coast, had washed up along Mississippi and Alabama barrier islands, and was found for the