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Occupational Safety and Health Administration OSHA

Accident Report Detail

Accident: 136124.015 - Employee Is Killed When Overexposed To H2s During Confined S

Accident: 136124.015 -- Report ID: 0521100 -- Event Date: 06/07/2021
InspectionOpen DateSICEstablishment Name
1535053.01506/08/2021Great Lakes Tv Seal Inc.

At 12:30 p.m. on June 7, 2021, an employee entered a sewer manhole to estimate t he amount of materials needed to perform a manhole repair when the employee was overcome by high levels of hydrogen sulfide at the base of the manhole shortly a fter entry. The employee did not perform atmospheric monitoring and had not donn ed his harness with rescue tripod before entry into the confined space. A four g as monitor and rescue equipment were located in the employee's work vehicle. Cow orker #1 (attendant) and Coworker #2 (helper) were not trained or equipped for p erforming a confined space entry rescue. A volunteer fire department responded w ithin 8 minutes and performed the confined space entry rescue shortly after arri val. The employee was killed by overexposure to hydrogen sulfide.

Keywords: air monitoring, asphyxiated, chemical, chemical exposure, chemical vapor, confined space, entry permit, gas, hydrogen sulfide, inhalation, lung, manhole, manhole cover, overcome by gas, overcome by vapors, overexpos

Employee Details
Employee # Inspection Age Sex Degree Nature
1 1535053.015 39 M Fatality

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