Volume and extent of the Deepwater Horizon oil spill Volume and extent of the Deepwater Horizon oil spill The "Deepwater Horizon" oil spill was discovered on the afternoon of 22 April 2010 when a large oil slick began to spread at the former rig site. According to the Flow Rate Technical Group, the leak amounted to about of oil, exceeding the 1989 "Exxon Valdez" oil spill as the largest ever to originate in U.S.-controlled waters and the 1979 Ixtoc I oil spill as the largest spill in the Gulf of Mexico. BP has challenged this calculation saying that it is overestimated as it includes over of oil which was
Refugio oil spill the water. After struggling to find the leaking pipeline, workers located Line 901 where it had leaked and flowed into the storm culvert around 1:30pm. Clean-up efforts didn't begin for 16 to 18 hours. Company officials in Bakersfield who were responsible for notifying the National Response Center did not do so until 2:56pm. The Center, staffed by United States Coast Guard officers and marine science technicians, is the sole federal point of contact for reporting all hazardous substances releases and oil spills. An oil spill triggers mandatory federal notification requirements in a timely manner but company officials said they were