The incident occurred in Wilton on Tuesday, July 16, at Premier Firewood Company on Pimpewaug Road.
According to Lt. Anna Tornello of the Wilton Police, an investigation found that Bonifacio Trejo-Vargas, age 44, of Norwalk, assaulted his co-worker during a dispute.
The coworker sustained serious physical injury, Tornello said.
Trejo-Vargas was charged with assault and released after posting seven percent of a $2,500 court-set bond.
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