At 11:00 a.m. on June 8, 2021, Employee #1 washed the inside of a tanker to clear chemical residue from the inside of the tanker. At some point, Employee #1 lost consciousness and was found by Employee #2, who attempted to rescue Employee # 1 from the tanker.
A coworker heard Employee #2 in distress and called for emergency medical assistance.
Employee #1 was killed and Employee #2 was hospitalized due to exposure to hydrogen sulfide.