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Accident Report Detail

Accident: 200831634 - Employee Is Sickened By Atmospheric Hazards In Trench

Accident: 200831634 -- Report ID: 0215600 -- Event Date: 09/14/2011
InspectionOpen DateSICEstablishment Name
31343230409/14/20111542Ruttura & Sons Construction Co., Inc.
InspectionOpen DateSICEstablishment Name
31343231209/14/20111711Metropolitan Sewer Inc.
InspectionOpen DateSICEstablishment Name
31343229609/14/20111542Turner Construction
At approximately 10:20 a.m. on September 14, 2011, Employee #1 was working in a trenching operation. The trench measured approximately 7 feet long by 7 feet wide by 15 feet deep. Employee #1 entered the trench and set up a core drill when he began to feel nauseous and dizzy. Employee #1 was equipped with a carbon monoxide and natural gas detector, however, no alarms sounded. Employee #1 climbed out of the trench and emergency services were called. Employee #1 was transported to a local hospital. The local Fire Department conducted atmospheric testing inside the trench at approximately 11:30 a.m., and received the following readings: Sulfur Dioxide (S02) 16.3ppm; Lower Explosive Limit 86% ; Oxygen (O2) Good; Hydrogen Sulfide (H2S) 9.4ppm; Carbon Monoxide (CO) 3ppm; ConEd Natural Gas 0; Volatile Organic Compounds (VOCs) 2,000ppm. Prior to entering the trench, Employee #1 spilled gasoline on his pants and boots while filling a generator.
Keywords: air monitoring, air contamination, dizziness, confined space, idlh, trench, nausea
End Use Proj Type Proj Cost Stories NonBldgHt Fatality
Other building New project or new addition $20,000,000 and over 5 50
Employee # Inspection Age Sex Degree Nature Occupation Construction
1 313432304 Occupation not reported FallDist:
2 313432312 Hospitalized injury Other Occupation not reported FallDist:
Cause: Excavation
FatCause: Asphyxiation/inhalation of toxic vapor
3 313432296 Occupation not reported FallDist:

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