The state has issued Chevron a notice of violation ordering it to stop steam injections around the spill. The company also increased its production of oil from wells in the area. Both actions are intended to relieve underground pressure that may be forcing the mix of oil and water to the surface.
Chevron will pay for the cleanup, though the state will oversee the process, said Steve Gonzalez, a spokesman for the California Department of Fish and Wildlife’s Office of Spill Prevention and Response.
The cleanup and the investigation into what caused the oil flow were somewhat delayed as officials ensured there are no dangerous fumes or sinkholes that could trap workers or heavy equipment, he said.