Fire crews clean up fire suppression foam overnight - KMOV.com

Fire crews clean up fire suppression foam overnight

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Firefighters cleaning up fire suppression foam (Credit: KMOV) Firefighters cleaning up fire suppression foam (Credit: KMOV)

ST. LOUIS (KMOV.com) – Fire suppression foam spread over Interstate 55 near the Potomac exit overnight.

Around 11:30 p.m. Thursday, firefighters were called to an alarm at the Sigma Aldrich plant. When crews responded to the area, they found fire suppression foam flowing from the plant onto Interstate 55. Fire crews said the foam was not dangerous but it was a mess to clean up.

The Missouri Department of Transportation said their crews couldn’t use water to blast it off because it would create a sheet of ice in the cold weather. Crews ended up having to slowly sweep the foam away.

A malfunction of the foam system caused it to flow from the plant, officials said. The fire suppression foam is used to put out and minimize fire and vapors in the event of an emergency. 

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