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CAI/Arnel Chemical Plant Explosion
Danvers, MA, November 22, 2006
CAI/Arnel Chemical Plant Explosion
Ruins of destroyed CAI/Arnel chemical facility after powerful explosion.

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Incident Description
During the early morning hours of November 22, a powerful explosion destroyed the CAI/Arnel ink and paint manufacturing facility in Danvers, Massachusetts. Scores of nearby homes and businesses were damaged, some beyond repair. A number of residents were hospitalized. There were no injuries in the plant, which was unoccupied at the time.

Investigation Status
The CSB's final report was approved by a vote of the Board at a public meeting in Danvers, Massachusetts, on May 13, 2008.

Reports Final Investigation Report
Webcast
News Releases News Release May 13, 2008 - CSB Investigation into Massive 2006 CAI Explosion in Danvers, Massachusetts, Concludes Lack of Company Safeguards Allowed Solvent Vapor to Accumulate When Ink-Mixing Tank Was Left Heating Overnight
News Releases News Release April 30, 2008 - CSB to Hold May 13 Public Meeting in Danvers, Massachusetts, to Consider CAI/Arnel Explosion Final Investigation Report
News Releases News Release November 15, 2007 - One Year after Massive Blast in Danvers, Massachusetts, CSB Analysis Confirms Solvent Vapor Explosion, Examination of State's Fire Safety Oversight Continues
News Releases News Release May 9, 2007 - In Preliminary Findings, CSB Investigators Say 2006 Danvers, Massachusetts, Explosion Caused by Solvent Vapor Accumulation, Lack of Ventilation inside Building; Flammable Liquid Safety Standards Were Not Implemented, CSB Investigators Find
News Releases News Release April 18, 2007 - CSB to Convene May 9 Community Meeting in Danvers, Mass., Explosion Investigation, Present Preliminary Findings, Hear Public Comments
News Releases News Release February 6, 2007 - CSB Investigation of Danvers Accident Continues as Team Weighs Explosion Models; CSB Chairman Urges All Businesses Pay Heightened Attention to Flammable Solvent Safety
News Releases News Release December 1, 2006 - CSB Continues Investigation of Massachusetts Chemical Plant Explosion: Statement of Lead Investigator John Vorderbrueggen
News Releases News Release November 22, 2006 - CSB Deploys Investigators to Site of CAI, Inc. Explosion and Community Damage in Danvers, Massachusetts
Presentations CSB PowerPoint Presentation on Preliminary Findings Public Meeting, May 9, 2007
Transcripts Transcript of Board Public Meeting, Danvers, MA, May 15, 2008
Transcripts Transcript of Board Community Meeting, Danvers, MA , May 9, 2007