September, 2015

This is a repeating event

201504SepAll DaySapulpa Toxic Release 2015Sapulpa, West Tulsa (US-OK)Lessons:Commitment & Culture,Compliance with Standards,Control of Work,Incident Investigation,Operating Procedures,Risk AssessmentIndustry:RoadCountry:United StatesLanguage:ENLoC:Operator error Origin: MKOPSC Incident:Gas/vapour/mist/etc release to airHazards:Corrosive,Environmental,ToxicContributory Factors:Transport AccidentImpact:HUMAN (Offsite Injuries)Effects:< 100 InjuriesMaterial:Ammonia


A tank car was leaking Anhydrous ammonia and the cap from the tanker was missing, which created a vapor cloud.

Source: A web-based collection and analysis of process safety incidents (
Image Credit: Fox 23 News


MKOPSCMary Kay O'Connor Process Safety Center