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Occupational Safety and Health Administration OSHA

Accident Report Detail

Accident: 105156.015 - Employee Is Exposed To Chlorine Gas While Performing Prevent

Accident: 105156.015 -- Report ID: 0352420 -- Event Date: 03/19/2018
InspectionOpen DateSICEstablishment Name
1303334.01503/20/2018Washington Suburban Sanitary Commission
At 10 p.m. on 3/19/18, an employee and coworker were performing preventative mai ntenance on a chlorine gas system used in a water filtration process. The employ ee and coworker were removing, and reinstalling, a flange with a black Teflon ru bber gasket. They were working in a 48-foot long, 24-foot wide, and 6-foot tall crawl space under a chlorine cylinder storage building. The schedule 80 polyviny l chloride (PVC) chlorine pipes that were connected to the flange were under vac uum and purged before the work began in an attempt to remove residual chlorine g as. The employees were required to wear a Scott Industrial Self-Contained Breath ing Apparatus (SCBA), 4,500 PSI, with a Scott Full Face piece as protection agai nst any residual chlorine gas. Near the end of the work, the employee adjusted t heir tight-fitting, elastomeric facepiece and inhaled residual chlorine gas. The employee became agitated and while attempting to exit the crawl space further d islodged the tight-fitting elastomeric facepiece. The employee was hospitalized. The employee was reported to have a beard.
Keywords: chemical, chlorine, scba
Employee # Inspection Age Sex Degree Nature Occupation
1 1303334.015 34 M Hospitalized injury Water and sewage treatment plant operators

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