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Occupational Safety and Health Administration OSHA

Accident Report Detail

Accident: 522169 - Surveyor And Two Backhoe Operators Drown When Asphyxiated

Accident: 522169 -- Report ID: 0830500 -- Event Date: 07/24/1991
InspectionOpen DateSICEstablishment Name
10056203207/25/19911623R & R Pipelines, Inc.
InspectionOpen DateSICEstablishment Name
10056207307/26/19918713Zambrana & Associates
InspectionOpen DateSICEstablishment Name
10056210707/29/19911542Crss, Inc.
InspectionOpen DateSICEstablishment Name
10056208107/26/19918713Rubino Surveying
Employees #1, #2, and #3, two backhoe operators and one surveyor, were locating underground utilities in preparation for a road construction project. The primary method of locating the utility lines was to dig them up and then precisely survey them. Apparently (since there were no witnesses) Employees #1, #2, and #3 entered a 20 foot deep utility vault to survey the water and gas lines at the bottom. They were overcome by high levels of carbon dioxide and low levels of oxygen, and ultimately drowned in the 3 feet of water at the bottom of the vault. The official cause of death was cited as "Drowning due to asphyxiation due to acute stagnant air syndrome."
Keywords: oxygen deficiency, surveyor, asphyxiated, equipment operator, work rules, scba, confined space, construction, carbon dioxide, drown
Employee # Inspection Age Sex Degree Nature Occupation
1 100562032 Fatality Asphyxia Occupation not reported
2 100562032 Fatality Asphyxia Occupation not reported
3 100562073 Fatality Asphyxia Occupation not reported
4 100562107 Occupation Not Listed
5 100562081 Occupation Not Listed

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