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West Helena Chemical Explosion

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May 8, 1997 West Helena, Arkansas BPS, Inc.
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Page 1: West Helena Chemical Explosion

May 8, 1997

West Helena, Arkansas

BPS, Inc.

Page 2: West Helena Chemical Explosion

Setting the Scene

➔Bartlo Packaging Inc. (BPS)

➔located in a rural/agricultural area

➔agricultural chemical packaging facility

➔bulk shipments repackaged

○ pesticides and insecticides

➔130 employees

Page 3: West Helena Chemical Explosion

The Incident

➔3 firefighters dead

➔17 firefighters injured

➔hundreds evacuated

➔hundreds sheltered in place

➔multi-agency response

➔2 weeks to extinguish

Page 4: West Helena Chemical Explosion

The Response

➔smoke discovered by employees

➔FD called at 1302

➔West Helena FD responds

➔Helena FD requested (mutual aid)

➔West Helena chief meets facility

personnel

Page 5: West Helena Chemical Explosion

The Response

➔yellow smoke is observed

➔Chiefs review MSDS sheets

➔units pull back to plan

➔explosion occurs

➔4 firefighters trapped by debris

➔1 firefighter is rescued

Page 6: West Helena Chemical Explosion

The Response

➔firefighting operations cease

➔hazmat team requested (toxic smoke)

➔fire could not be extinguished

➔fire was left to burn out

Page 7: West Helena Chemical Explosion

The Chemical

Azinphos-methyl (AZM)

Page 8: West Helena Chemical Explosion

The Chemical

Azinphos-methyl (AZM)

Page 9: West Helena Chemical Explosion
Page 10: West Helena Chemical Explosion
Page 11: West Helena Chemical Explosion
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Page 13: West Helena Chemical Explosion

The Chemical

Azinphos-methyl (AZM)

2783

Organophosphorous pesticide

Page 14: West Helena Chemical Explosion

What went wrong?

Possible Scenarios

➔chemical decomposed by compressor heat

➔decomp began prior to delivery

➔incompatible chemicals react

➔compressor overheats AZM sack

Page 15: West Helena Chemical Explosion

What went wrong?

AZM

Page 16: West Helena Chemical Explosion

What went wrong?

TNT

Page 17: West Helena Chemical Explosion

What went wrong?

Page 18: West Helena Chemical Explosion

Lessons Learned

1. facilities should have full understanding of chemical hazards

2. facilities, chemicals, equipment, modifications should be regularly reviewed for potential hazards

3. material handling and storage SOP’s should be in place

4. all product information should be accurate and accessible


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