Emergency crews respond to a report of a hazardous materials situation following a crash near Kishwaukee Valley Road and Oleson Road in unincorporated Marengo. | Photo: MFRD

Fire officials say no injuries were reported after farm machinery pulling an anhydrous ammonia tank, which can be highly hazardous, rolled over near Marengo on Monday.

The Marengo Fire and Rescue Districts responded around 4:40 p.m. Monday to the area of Kishwaukee Valley Road and Oleson Road in unincorporated Marengo.

Marengo Fire & Rescue Districts Communication Specialist Alex Vucha said dispatch received a call for leaking ammonia.

Fire crews arrived and located various farm machinery that had rolled over in a ditch.

Emergency crews respond to a report of a hazardous materials situation following a crash near Kishwaukee Valley Road and Oleson Road in unincorporated Marengo. | Photo: MFRD

A damaged anhydrous ammonia tank was among the machinery that had rolled over.

“Our members are familiar with the dangers of anhydrous ammonia and took immediate precautions, including securing the area and checking wind direction,” Vucha said.

The damaged tank did not expel any of the product and the situation was mitigated quickly.

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Anhydrous ammonia is commonly used as an agricultural fertilizer.

Emergency crews respond to a report of a hazardous materials situation following a crash near Kishwaukee Valley Road and Oleson Road in unincorporated Marengo. | Photo: MFRD

When involved in a crash or handled improperly, the product can be dangerous, Vucha said.

Conserv FS, a farm supply services company, assisted at the scene by safely removing the damaged tank.

No injuries were reported. Kishwaukee Valley Road was closed in both directions for over an hour.

The McHenry County Sheriff’s Office is investigating the cause of the crash.