A large hazardous materials handling crew was summoned to Bailey Yard Monday after two chemicals were inadvertently mixed in a tank car.
U.P. spokesman Mark Davis said a contractor mistakenly added aluminum chloride to a rail car that contained coolant with a rust inhibitor for locomotive engines. The combination created a yellow vapor and sharp odor from the car, which was parked on a service track near the locomotive repair shop, commonly called the diesel shop.
Davis said Bailey Yard workers reported what looked like yellow smoke coming from the top of the container around 3:15 p.m., and smelled a odor that they suspected was chlorine gas.
A Hazardous Materials analyst was summoned who determined the cause. He called in Haz Mat trucks to pump out the liquid and haul it away.
No evacuations were necessary but Davis said as a precaution Bailey Yard workers were kept out of the area. He said none of the material was on the ground.
The Haz Mat team worked through the day and removed a total of about 7,000 gallons of product, finishing the job around 2 p.m. Tuesday, Davis said.