Unified Command responders conduct an overflight of the oil spill incident site at Port William, Kodiak Island, Alaska, March 7, 2018. A total of 3,340 feet of boom is deployed after an estimated 3,000 gallons of bunker C fuel oil, a high-viscosity residual oil, spilled when a building partially collapsed due to extreme wind conditions Feb. 27, 2018. U.S. Coast Guard photo.