SPRINGFIELD, Ore. (AP) — A fire at a Springfield plywood mill last month spread debris and ash to a few dozen residential properties, including two at which asbestos has been confirmed.

Chuck Wert, a vice president of Swanson Group, says the mill property contained more asbestos than originally thought. It was in the roofing as well as steam pipe insulation.

The Eugene Register-Guard (http://bit.ly/1oOhY7j) reports that nearly 40 people reported debris on their properties, and owners of 27 asked for cleanups.

Wert says a contractor has cleaned up debris at 16 residences, the cleanup is underway at two more, and nine properties remain to be done.

Employees reported the July 17 fire began in a veneer dryer and spread rapidly. Officials say their investigation may take a year.

About 250 workers were displaced.

___

Information from: The Register-Guard, http://www.registerguard.com