A miles-long oil sheen off the coast of Huntington Beach appears to have been natural seepage from the ocean floor, the U.S. Coast Guard said March 11.
The sheen was first spotted March 7.
A miles-long oil sheen off the coast of Huntington Beach appears to have been natural seepage from the ocean floor, the U.S. Coast Guard said March 11.
The sheen was first spotted March 7.