Emergency responders determined that a white powdery substance received Monday afternoon in an envelope at the Two Rivers Correctional Institution (TRCI) mail room was not hazardous.
According to the Oregon Department of Corrections, staff in the TRCI mail room reported receiving the envelope with the unknown substance around 2:28 p.m. The mail room area was secured and the administration building evacuated. Hermiston Hazardous Materials Unit and the Umatilla Fire and Rescue responded to evaluate the powder for any hazardous substances. No employees reported any adverse reactions.
The mail room is located inside the administration building, where 18 to 20 staff members normally work each day. Several staff members were in the mail room at the time the substance was found. The prison is operating as normal.
TRCI is a medium- and minimum-security facility in Umatilla that houses approximately 1,800 inmates.
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