The U.S. Coast Guard and Washington State Department of Ecology continue to oversee the cleanup and investigate the cause of an oil spill that appeared earlier this week in the Ballard Mill Marina, on Salmon Bay, along the Lake Washington Ship Canal. The Coast Guard and Ecology received reports Monday morning of oil, accompanied by strong petroleum odors in the waters. No one has come forward to take responsibility for the spill, and the Coast Guard has utilized the federal Oil Spill Liability Trust Fund to hire Global Diving and Salvage to conduct the cleanup. The Coast Guard and Ecology have established a unified command to plan and oversee cleanup work.