Tests comparing oil in a slick near the ferry terminal Sept. 12 to some in a tugboat docked there at the time are inconclusive, U.S. Coast Guard officials said last week.
“There were traces of the same lubricating oil in both samples but we couldn’t identify the lighter spill component and we can’t pinpoint it as an exact match,” said Coast Guard petty officer James Highfill. No enforcement action will be taken in the matter,…