UPDATED at 2:10 p.m.
Investigators believe they have pinpointed the source of a fuel spill spotted today on the Foss Waterway.
Investigators suspect the substance came from a private home. The fuel went into the storm drain, which then emptied it into the Foss Waterway, City of Tacoma spokeswoman Lorna Sutton said.
Callers reported a thin sheen from the spill just after 9:45 a.m. The sheen was spotted on the water from the head of the waterway to the 11th Street bridge, the state Department of Ecology reported.
A boom was deployed to contain the spill, the Tacoma Fire Department reported.
Sutton said crews were cleaning out the catch basin.