Safety Incidents OSHA Severe Injury Reports · 2015–2025
105,313Records 71,083Employers 85,290Hospitalizations 27,770Amputations 2015-01-01 2025-10-31

OSHA Accident Investigation · Summary #221468911

65046 - BIG RIVERS ELECTRIC CORPORATION

Event
Hydro-Electric Plant, Hydrogen Sulfide, Inhalation, Poisoning, Pump
NAICS
221112
Inspection type
Federal Agency
Activity number
#346013568
Employer profile
65046 - BIG RIVERS ELECTRIC CORPORATION
Summary number
221468911
Report ID
0452110

Event description

Employee dies from inhalation of hydrogen sulfide

Investigation abstract

On June 7, 2022, an employee working as an environmental engineer was replacing two failed pumps in a pump station. Two coworkers connected the new pumps to electric and the employee lowered the pumps into the vault. It was noted that the pumps weren't working correctly and water was pumped from the space. The employee was allegedly overcome by hydrogen sulfide (H2S), fell into the vault and was killed. A coworker working for a contractor called for help after observing the employee fall and was also found in the vault.

Victim

  1. #1 Fatality Age 39 M

    Event type
    8
    Occupation code
    999

Codes shown verbatim from OSHA's accident-investigation database. A human-readable decoder is coming in a future release once the accident_lookup2 dictionary is loaded.