The Pryor Times

February 8, 2014

Ammonia leak at Pryor Chemical

Staff Writer
Cydney Baron

PRYOR, OK — Reports of an ammonia leak at Pryor Chemical Plant Thursday afternoon caused a temporary evacuation of several plants in MidAmerica Industrial Park.

Several emergency agencies responded to neutralize the situation.

The cause of the leak is still under investigation. At this time authorities are able to confirm it was a small quantity of anyhdrous ammonia that leaked from an outside release valve. The valve was located in the area used to fill trucks. Officials on scene speculate the valve may  have burst.

Roads were blocked off to prevent drivers from entering the park before it was declared safe and several plants and companies sent their employees home.

Mayes Emergency Services Trust Authority reportedly transported one 60-year-old male to a landing zone so he could be lifeflighted to a Tulsa hospital.

As anhydrous ammonia is decompressed with water, firefighters were able to neutralize the chemical. Once it comes in contact with water, ammonia binds to the ground and is no longer airborne.

An all-clear was issued by Pryor Chemical Plant Manager Mark Stafford at 3:38 p.m. declaring the scene safe.