At approximately 10:15 a.m. on May 30, 2012 a 46-year-old truck driver was making a routine delivery of sanitation chemicals to a milk packaging plant.   The plant purchases their sanitation chemicals through a nationally recognized clean-in-place chemical provider and the chemicals are delivered by a local chemical trucking company. Employee #1 (truck driver) delivered the chemicals to the plant's milk-loading dock #2 where the chemicals are pumped through receiving pipes located on the south wall of the loading dock. The pipes lead to three large tanks located in the Clean In- Place (CIP) room located adjacent to the dock. The multi-compartment tanker truck was loaded with two (2) different chemicals:

This is a 24,000-gallon fuel tank that floated out of the ground due to extremely high ground water levels and low fuel level inside the tank.  Laws of physics will win every time!  I do wonder what would have happened had a car been parked over the tank when it broke free and floated to the surface.  


  1. PHMSA Issues Safety Advisory on Use of DOT-39 Cylinders for Liquefied Flammable Compressed Gas

  2. When BOLLARDS work! (Video)

  3. 2015 International Fire Code (IFC) and Vehicle Impact Protection

  4. Another "Vent & Burn" used on Cat 1 Flammable Gas(s) Transport Containers

  5. DOT Requirements for Loading/Unloading LPG and NH3

  6. NTSB releases PRELIMINARY findings on Chlorine Railcar leak in WV

  7. What OSHA's GHS Means for Fire and Building Code Officials (Fact Sheet)

  8. Who said diesel was not explosive?

  9. PHMSA Proposes to Harmonize Hazardous Materials Regulations to International Standards

  10. Did the Federal Motor Carrier Safety Administration (FMCSA) just declare e-cigs an "ignition source"?

  11. REVISED Safety Advisory: Emergency Discharge Control Equipment Installation on Cargo Tank Motor Vehicles Resulting in the Potential Loss of Vehicle Control (FMCSA 2016)

  12. HAZMAT Safety Advisory: Immediate re-inspection and retesting of certain cargo tank motor vehicles required (FMCSA 2016)

  13. Fisher PRD Recall Safety Notice (DOT) FREE Ohio Fire Code Training Modules - Update from State Fire Marshal's Office (July 2016) EPCRA Revisions to Hazard Categories and Minor Corrections: Technical Amendment Ammonia is not suppose to behave that way

    HAZMAT Guys discuss two major Ammonia Releases

  14. IL has another TOTAL LOSS of NH3 from MC331 during loading/unloading @ fertilizer facility

  15. Callaway, MN MC331 Tanker vs. Train incident does NOT appear to have been a BLEVE

  16. FREE ACCESS to the 2015 International Fire Code (IFC)

  17. 2nd BLEVE in as many days??? (MC331 - Propane)

  18. IL Fire Marshal explains state codes and NFPA Life Safety Code

  19. Ohio is revising the State Fire Code for 2017

  20. Another WRONG material to WRONG tank incident 

  21. Metallurgical Evaluation of a Nurse Tank Cracked Head (Failure was SCC)


  23. 2015 Lessons Learned with HAZMAT UNLOADING accidents

  24. Cryogenic tank for liquefied carbon dioxide ruptured (Lack of Car-Seal Program)

  25. PHMSA to Hold Advisory Committee Vote on Rulemaking Proposal for Excess Flow Valves

  26. Dramatic Explosion @ Natural Gas Processing Plant (Video)

  27. Chlorine Institute offers HCl DVD Now Available for FREE

  28. Chlorine Institute offers New HYPO DVD Now Available for FREE

  29. SAFETY NOTICE: Welding on Cargo Tanks

  30. DOT issues warning about some nurse tanks (SP-16239)

  31. FAMOUS Cargo Tank Failure (Safety Alert)

  32. Forearmed is Forewarned, REVISING the NFPA 704 may make sense!

  33. New Edition of CI PPE Pamphlet 65 Available

  34. Review of HAZMAT Unloading/Loading risks (PHMSA)

  35. Unloading HAZMAT accident - WRONG TANK (NTSB DCA99MZ006)
  36. Unloading HAZMAT accident - WRONG TANK (NTSB DCA99MZ003)
  37. Receiving and unloading bulk hazardous liquids in Kentucky
  38. Hazardous Materials: Flame Arrestors (USFA)
  39. Cargo Tank Motor Vehicle (CTMV) Loading/UnLoading operations: Recommended Best Practices Guide
  40. Recommended Non-Destructive Testing to Improve Nurse Tank Safety, Phases I and II
  41. Nitrogen Cylinder Failure Incident (TX FM Report)
  42. States and US Territories that have adopted International Codes (IMC, IFC, IBC, etc.)
  43. Industrial Commission of North Dakota Adopts New Standards to Improve Oil Transportation Safety
  44. Sulfuric Acid into Hydrochloric Acid tank (Unloading Incident)
  45. Is your propane cylinder SAFE? (PHMSA)
  46. Hazardous Materials: Harmonization With International Standards (RRR)
  47. Detonation or Deflagration? (USFA)
  48. Did you know... Ammonia (and Propane) gas is NOT white?
  49. HAZMAT Awareness - PLACARDS (video)
  50. How NOT to haul an industrial LPG tank! (Video)
  51. Ammonia Explosion 30 years ago this week
  52. 2013 HAZMAT Loading/Unloading Incidents
  53. NIOSH launches the NIOSH Center for Direct Reading and Sensor Technologies (NCDRST)
  54. U.S. DOT Announces Comprehensive Proposed Rulemaking for the Safe Transportation of Crude Oil, Flammable Materials (Releases new data on Bakken crude oil to support increased safety measures)
  55. BLEVE or Diesel Tank Exploding??
  56. OSHA’s TECHNICAL MANUAL on the LIMITATIONS of Explosibility (combustible gas) Sensors
  57. Commissioning of a LNG Storage Tank (Video)
  58. 2014 Video of the Week #16 (The power of NH3 inside a pressure vessel)
  59. Nurse Tank Safety and Compliance Advisory letter (2008 Reminder)
  60. Hazardous Materials: Cryogenic Fluids (USFA)
  61. Why ice accumulates on cryogenic system vaporizers (USFA)
  62. Hazardous Materials: Cargo Tank Motor Vehicle Loading and Unloading Operations
  63. PHMSA issues Safety Alert regarding crude oil being transported from the Bakken region
  64. Adoption of ASME Code Section XII and the National Board Inspection Code
  65. Company failed to report CL2 release in timely manner ($42K - truck unloaded to WRONG tank - reaction)
  66. CFATS FAQ: What is a thermal radiation zone?
  67. Safety and Security Plans for Class 3 Hazardous Materials Transported by Rail
  68. Improving Chemical Facility Safety and Security: Listening Sessions
  69. Vehicle impact protection for liquefied petroleum gas (LPG) exchange cages
  70. Natural Gas Line Excavation ignition caught on camera
  71. Pipeline Safety: Notice to Operators of Hazardous Liquid and Natural Gas Pipelines of a Recall on Leak Repair Clamps Due to Defective Seal
  72. Ammonia Engine/Machinery Rooms and Hazardous Locations is NOT driven by PSM/RMP alone
  73. Reading Codes and Standards: Part 3
  74. Federal Railroad Administration Issues Emergency Order to Prevent Unintended Hazardous Materials Train Movement
  75. Reading Codes and Standards: Part 2
  76. Safety Alert: Risks Associated With Liquid Petroleum (LP) Gas Odor Fade (PHMSA)
  77. Pipeline Safety: Reminder of Requirements for Utility LP-Gas and LPG Pipeline Systems
  78. Fire Code Permits (USFA)
  79. Liquefied natural gas road tanker explosion (BLEVE incident)
  80. Preliminary Findings of the U.S. Chemical Safety Board from its Investigation of the West Fertilizer Explosion and Fire
  81. Method of Measuring Nanoparticle Penetration through Protective Glove Materials under Conditions Simulating Workplace Use
  82. Guide for Safe Use of Isocyanates - An Industrial Hygiene Approach
  83. The mistakes made in West (Not OSHA's or EPA's)
  84. FREE Resources for Ammonium Nitrate Safety (NO EXCUSES!)
  85. Bulk Liquid Oxygen Separation (USFA)
  86. House Dems Ask GAO to Examine Oversight Gaps at West, TX & Similar Facilities Nationwide
  87. Has your state adopted the International Fire Code (IFC)?
  88. Storing Ammonium Nitrate in Ohio
  89. Ammonium Nitrate Sensitization (explaining one West, TX scenario)
  90. Increased Civil Penalties Take Effect for Those Who Knowingly Violate Federal Hazmat Laws and Regulations
  91. 2012 HAZMAT Loading/Unloading Incidents
  92. BLEVE - Cause and Effect
  93. UNLOADING HAZMAT to the wrong tank (CL2 Incident)
  94. Pipeline Safety: Reporting of Exceedences of Maximum Allowable Operating Pressure
  95. NEW DOT Shipping Papers REQUIREMENT EFFECTIVE 1/1/13
  96. The DOT 25' Attendant Rule
  97. FRA Safety Advisory - 2003-02 (Excess Flow Valves)
  98. Update on CL2 release @ Poultry Plant
  99. New Reports Recommend Improvements for Acute Exposure Guideline Levels Documentation     
  100. NH3 Fertilizer Compliance info from State of MI
  101. Revisions to the Tier I and II Emergency and Hazardous Chemical Inventory Forms
  102. Compressed Gas Cylinder Color Coding
  103. Odorant Fade in Railroad Tank Cars (Safety Advisory 2012–01)
  104. Ammonia kills woman driving thru cloud (Video - News Account)
  105. Albert City, Iowa Chicken Farm BLEVE (NFPA)
  106. MAJOR Bromine Rail Car Release (Video)
  107. ANOTHER Acetylene cylinder stored in a car
  108. Cylinder Transport
  110. Morris missile: Anhydrous ammonia nurse tank explosion
  111. FREE Training Resources for Responding to Ethanol Incidents
  112. Chlorine Institute offers FIVE more FREE Technical Publications
  113. Chemical Reactivity Worksheet
  114. DOT Revises the Requirements for Emergency Response Telephone Numbers
  115. DOT final rule sets design standards for PIH-carrying tank cars
  116. DOT issues a Nurse Tank Safety and Compliance Advisory letter
  117. Chemical Plant Security
  118. BLEVE Response and Prevention (Mechanical Engineering Queen’s University)
  119. House subcommittee sends chemical security bill, H.R.2868, to full committee
  120. PHMSA is amending the HAZMAT Regulations to maintain alignment with international standards
  121. DOT to Improve Safety Around Hazardous Material Loading and Unloading Operations
  122. Does the fuel inside generators being transported from one site to the next have to meet DOT HAZMAT requirements?
  123. DOT CHANGES the Security Plan Requirements (Revised List of Materials)
  124. HAZMAT UPDATE on Railroad Tankcar Designs
  125. Propane Cylinders - Important Pressure Relief Valve Information
  126. Storing forklift propane cylinders PROPERLY
  127. Acetylene Cylinder Safety

PHMSA 36-16

Thursday, December 15, 2016

PHMSA Issues Safety Advisory on Use of DOT-39 Cylinders for Liquefied Flammable Compressed Gas. The U.S. Department of Transportation's (U.S. DOT) Pipeline and Hazardous Materials Safety Administration (PHMSA) issued a safety advisory informing offerors or anyone using a DOT Specification 39 (DOT-39) cylinder that cylinders with an internal volume of 75 cubic inches (in3)(1.23 L) or more should not be filled with liquefied flammable compressed gas. The rupture or release of a liquefied flammable compressed gas from a DOT-39 cylinder with an internal volume exceeding 75 in3 is a safety concern that could result in extensive property damage, serious personal injury, or even death.

I have written several times about "vehicle impact protection" for our hazardous materials processes and systems and these articles have garnered a lot of attention, as it seems a lot of folks were not aware there was an actual design basis for these protective members.  Here is a video (WARNING!  MUTE the sound!!) that shows us how these protective members work when DESIGNED, CONSTRUCTED, and INSTALLED PROPERLY.  Notice the hydrant was FULLY protected in this accident and that is not a small vehicle! 

The 2015 IFC section 312.3 now provides performance criteria for vehicle barriers instead of prescriptive design that was missing an impact velocity.

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