Friday, September 18, 2026

Chemical Transportation Incidents – Week of 8-15-26

Reporting Background 

See this post for explanation, with the most recent update here (removed from paywall). 

Data from PHMSA’s online database of transportation related chemical incidents that have been reported to the agency. 

Incidents Summary  

  • Number of incidents – 556 (534 highway, 18 air, 4 rail, 0 water) 
  • Serious incidents – 2 (2 Bulk release, 0 evacuation, 0 injury, 0 death, 0 major artery closed, 5 fire/explosion, 23 no release)  
  • Largest container involved – 33,520-gal DOT 112J400W Railcar {Petroleum Gases, Liquefied or Liquefied Petroleum Gas} Residue. Liquid line valve partially open, cap not tool tight. 
  • Largest amount spilled – 3,722-gal Tank Truck {Gasoline Includes Gasoline Mixed with Ethyl Alcohol, With Not More Than 10% Alcohol} Trailer was damaged in a single vehicle accident. 
  • Total amount reported spilled in all incidents – 5644.9-gal 

NOTE: Links above are to Form 5800.1 for the incident described. 

Most Interesting Chemical: Pentamethylheptane: A colorless liquid. Insoluble in water and less dense than water. Vapors heavier than air. Contact may irritate skin, eyes and mucous membranes. Used as a solvent. (Source: CameoChemicals.NOAA.gov).  



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