Pressure Valve Ammonia Leak Injures One

Wednesday, June 4, 2014 @ 05:06 AM gHale

An open pressure valve on an ammonia storage tank left one man injured at a Hay River, WI, ethanol plant last Thursday.

Emergency crews from multiple communities responded to the ammonia leak at 3:30 p.m. at Big River Resources in Hay River.

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A pressure relief valve on an ammonia storage tank opened for an undetermined reason, said Menomonie Fire Department Lt. Andy Benrud.

Boyceville Community Ambulance Service transported the unidentified male to a local hospital. EMS Chief Matt Feeney said they believe the man inhaled the gas during the leak.

Boyceville and Menomonie EMS crews went through a decontamination process at the hospital, he said.

The incident occurred in a building leased by Air Products of Monroe, LA., Benrud said.

Air Products produces liquid CO2 at the plant. As a result of the incident, the plant ended up evacuated at the property.

The escaped gas all dissipated and they were able to stop the leak, Benrud said, adding they are not sure how many gallons of ammonia released.

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