Mystery Oil Slick3; San Francisco, California

San Francisco, California | 1989-Sep-20

Initial Notification: On September 20, 1989, the U.S. Park Service Police discovered approximately 30 globules of oil on the beaches along the Marin Headlands. The police notified the U.S. Coast Guard and a 41-foot patrol boat was dispatched from Yerba Buena Island. The Coast Guard observed oil concentrations of twelve extremely weathered tar balls per 50 square yards in a seven- mile by three-mile stretch of area less than one half mile off the San Francisco coastline near the Golden Gate Bridge. The largest concentrations were on the beach north of the Golden Gate Bridge. USCG district 1.