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Occupational Safety and Health Administration OSHA

Accident Report Detail

Accident: 108985.015 - Employees Are Injured In Building Explosion

Accident: 108985.015 -- Report ID: 0551701 -- Event Date: 08/30/2018
InspectionOpen DateSICEstablishment Name
1343597.01508/31/2018Metropolitan Water Reclamation District Of Greater Chicago - Calumet Water Reclamation Plant
At 11:00 a.m. on August 30, 2018, an employee #1 was using a cutting torch to remove the bolts on a manhole cover that was on sludge digester tank. At that time, the sludge digester tank contained methane gas and was ignited by the cutting torch causing massive explosion. As a result of the explosion, the sludge concentration building roof collapsed trapping two workers and injuring total of 10 employees. Employee #1 was hospitalized with fractured legs, broken jaw and wrist and shoulder injuries. Other employees sustained minor injuries on their leg, arms and shoulder.
Keywords: sewage, gas, methane, leg, explosion, sludge, wrist, arm, collapse, torch, shoulder
Employee # Inspection Age Sex Degree Nature Occupation
1 1343597.015 32 M Non Hospitalized injury Strain/Sprain Electricians
2 1343597.015 52 M Non Hospitalized injury Strain/Sprain Electricians
3 1343597.015 56 M Hospitalized injury Bruise/Contus/Abras Occupation Not Listed

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