A Mason-based company has been cited in connection with a trench collapse in Hillsboro last October that killed a 26-year-old construction worker, according to WLWT.

The Occupational Safety and Health Administration on Wednesday announced a series of citations against Stauffer Site Service, proposing penalties of $90,000, WLWT reported.

The victim, Marcus Mennett, who had worked for Stauffer Site Service for a little over a month, was working on a sewer line on Oct. 6 when a 10-foot-deep trench collapsed, burying him. He died two days later.

Mennett was from Bethel and was working in a trench beside the new fire station in Hillsboro when the trench collapsed. He was temporarily without a pulse when he was extricated. As resuscitation efforts continued, a pulse was detected. He was then transported by MedFlight helicopter to Miami Valley Hospital in Dayton.

Government officials said Stauffer employees were not trained to recognize trench hazards and “did not provide trench cave-in protection for its employees,” according to WLWT.

The city of Hillsboro announced in early September that it had contracted with Stauffer Site Services to implement a sewer reconstruction project on North East Street, from Main Street to East North Street. The contractor began construction mid-September and final completion for the project set for Oct. 15.