An Oregon wood treater kept polluting a town’s water source with a now-banned chemical — but regulators didn’t stop it

By Kaylee Tornay and Aspen Ford - August 28, 2025

 

Nearby tribe calls on state, federal agencies to end a “decade-long pattern of reckless violations”

 

Stella-Jones began operating a wood treatment facility in Sheridan, Ore., in 2013. The facility was designated a Superfund site in 2001 and underwent an extensive cleanup after pentachlorophenol pollution caused by a previous owner, Taylor Lumber and Treating. (Amanda Loman/InvestigateWest)

 

In the summer of 2023, Hailey noticed crayfish had disappeared downriver from a wood treatment facility in Sheridan operated by the Stella-Jones Corporation, a multinational Canadian company. Further up, his traps filled in an hour. But downstream, as the South Yamhill River flowed toward town, they were empty, his bait untouched.

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