On September 11, 2019, at 8:25 a.m., the Coffee Creek Correctional Facility (CCCF), Wilsonville, mail room reported receiving an envelope with an unknown white powdery substance. The mail room area was secured and the administration building evacuated. Tualatin Valley Fire & Rescue Hazardous Materials Team and the Federal Bureau of Investigation are on site to evaluate the powder for any hazardous substances. Four employees were decontaminated and transported to a local hospital with minor symptoms.