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Surface Water Sampling Data for BP Spill/Deepwater Horizon

Published by U.S. EPA Office of Land and Emergency Management (OLEM) - Office of Emergency Management (OEM) | U.S. Environmental Protection Agency | Metadata Last Checked: January 27, 2026 | Last Modified: 2011-04-29T00:00:00.000+00:00
The Deepwater Horizon oil spill (also referred to as the BP oil spill) began on 20 April 2010 in the Gulf of Mexico on the BP-operated Macondo Prospect. Following the explosion and sinking of the Deepwater Horizon oil rig, a sea-floor oil gusher flowed for 87 days, until it was capped on 15 July 2010. In response to the BP oil spill, EPA sampled air, water, sediment, and waste generated by the cleanup operations.

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