July, 2010

This is a repeating event

201022JulAll DayHorsehead Holding Explosion 2010Horsehead Holding Co. Monaca (US-PA) Origin: CSB Lessons:Competency,Operational Integrity,Operational ReadinessIndustry:Metal ProcessingCountry:United StatesLanguage:ENLoC:Deficiency

Summary

On July 22, 2010, an explosion and fire killed two workers at the Horsehead Holding Company zinc recycling facility located in Monaca, PA. The facility recycles and purifies zinc through a high temperature distillation process and is located approximately 35 miles north of Pittsburgh.

KEY ISSUES:
• SUMP DESIGN WITH RESTRICTED CLEARANCE
• POORLY EXECUTED COLUMN COMMISSIONING
• HUMAN FACTORS


Image credit: CSB

Origin

CSBUS Chemical Safety Board

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