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On 24 May, EPA Administrator Lisa Jackson ordered the EPA to conduct its own evaluation of alternatives and ordered BP to scale back dispersant use. [53] [54] According to analysis of daily dispersant reports provided by the Deepwater Horizon Unified Command, before 26 May, BP used 25,689 US gallons per day (0.0011255 m 3 /s) of Corexit
The report stated that, although the events leading to the sinking of Deepwater Horizon were set into motion by the failure to prevent a well blowout, the investigation revealed numerous systems deficiencies, and acts and omissions by Transocean and its Deepwater Horizon crew, that had an adverse impact on the ability to prevent or limit the ...
May 15 – Coast Guard and EPA authorize use dispersants underwater, at the source of the Deepwater Horizon leak. [62] May 16 – GSF Development Driller II starts drilling second relief well. May 17 – BP begins burning off gas with the Discoverer Enterprise. [51]
The Health consequences of the Deepwater Horizon oil spill are health effects related to the explosion of the Deepwater Horizon offshore drilling rig in the Gulf of Mexico on April 20, 2010. An oil discharge continued for 84 days, resulting in the largest oil spill in the history of the petroleum industry, estimated at 206 million gallons (4.9 ...
Deepwater Horizon was an ultra-deepwater, dynamically positioned, semi-submersible offshore drilling rig [7] owned by Transocean and operated by the BP company. On 20 April 2010, while drilling in the Gulf of Mexico at the Macondo Prospect, a blowout caused an explosion on the rig that killed 11 crewmen and ignited a fireball visible from 40 miles (64 km) away. [8]
BBC airs documentary in which Tyrone Benton, a robot operator, says the robot cameras on the Deepwater Horizon spotted a leak in early April two weeks before the accident in a control pod on the BOP. [136] The leaking BOP pod was turned off and another one turned on. The BOP was not taken out of service after the report.
The EPA tells BP to find a new dispersant to replace Corexit EC9500A and Corexit EC9527A that are either comparable or 10 to 20 times more toxic than 12 other dispersants on the EPA's approved list. BP applied 650,000 gallons of the chemical that breaks up oil since the spill began. [ 31 ]
The Deepwater Horizon spill has surpassed in volume the 1989 Exxon Valdez oil spill as the largest ever to originate in U.S.-controlled waters; it is comparable to the 1979 Ixtoc I oil spill in total volume released (Ixtoc discharged 140 million US gallons (530,000 m 3) to 148 million US gallons (560,000 m 3); as of mid-July 2010, Deepwater ...