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Occupational Safety and Health Administration OSHA

Accident Report Detail

Accident: 200210631 - Employee Killed By Hydrogen Sulfide At Bottom Of Manhole

Accident: 200210631 -- Report ID: 0626000 -- Event Date: 09/01/1998
InspectionOpen DateSICEstablishment Name
30209889209/02/19981623Pederson Construction Company, Incorporated
Employee #1 entered a 9 ft deep manhole to apply sealant to the connecting concrete rings. This was the last, and the deepest, of the six manholes he had entered. Shortly after reaching the bottom, Employee #1 was overcome by hydrogen sulfide gas that had collected in the manhole. He was killed.
Keywords: vapor, ppe, hydrogen sulfide, work rules, construction, inhalation, gas, chemical vapor, manhole
End Use Proj Type Proj Cost Stories NonBldgHt Fatality
Commercial building New project or new addition $50,000 to $250,000 1 X
Employee # Inspection Age Sex Degree Nature Occupation Construction
1 302098892 Fatality Asphyxia Construction laborers FallDist:
FallHt:
Cause: Waterproofing
FatCause: Asphyxiation/inhalation of toxic vapor

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