‘Possible Chemical Reaction’ Causes Firefighters To Go To Bow: Watch

BOW, NH — Capital region firefighters, EMTs, and police were called to River Road in Bow on Thursday for a report of a possible building fire.

Around 2:30 p.m., capital region dispatch received reports of alarms being activated in Building 1 of the Kalwall Corp on River Road. Later, firefighters found out the suppressor system was activated at Keller Companies, a manufacturing firm, and the building had been evacuated.

Bow command arrived and said nothing was showing from the single-story building, but everyone was out of the building. Later, around 2:45 p.m., the command reported there was no fire, no injuries, and everyone inside the building had been accounted for. They also requested a hazmat team activation to investigate “a possible chemical reaction.”

The Central New Hampshire Hazmat team was activated and sent to the scene.

The Bow Fire Department on Friday said Kalwall manufactures plastics products at the plant. The plant's fire suppression system had extinguished a fire in the mezzanine in the corner of one of the buildings. Investigators identified the chemicals involved as TRIGONOX K-90 and acetone.

Firefighters cleared the plant around 4 p.m.

Along with Bow firefighters and EMTs, firefighters and EMTs from Allenstown, Concord, and Hooksett also assisted. New Hampshire State troopers and Bow police were also at the event.

NEWS 603 posted a video on Facebook of some of the activity.

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