What appeared to be a derelict boat sank at a tribal dock on the Swinomish Channel last week.

According to Swinomish Environmental Compliance Manager Scott Andrews, although there was fuel aboard the vessel, there was not a significant amount released into the water.

“There was only a slight sheen on the water,” he said. “Not enough to bring the oil booms out.”

When the boat was recovered, 130 gallons of diesel fuel was pumped from fuel tanks aboard the 34-foot tribal fisher.

The sinking was reported at 10 a.m. last Wednesday when somebody spotted a submerged boat at a tribal float on the chan...