SFGate | US Coast Guard investigates strong oil smell in waters off Vallejo as residents report trouble breathing Los Angeles Times The U.S. Coast Guard is investigating reports of an oil sheen and strong smell near Vallejo that prompted firefighters to recommend residents shelter in place after some complained they had trouble breathing. A Coast Guard helicopter planned to conduct ... Authorities investigate reports of oil sheen, strong odor Oil slick found near Vallejo following mysterious odor Possible Oil Spill Investigated in San Pablo Bay |