Tuesday, March 18, 2025

Review – CSB Publishes Second Update into Texas Fatal Hydrogen Sulfide Release

Yesterday the Chemical Safety Board announced the publication of the second update for their investigation of the October 2024 hydrogen sulfide release at the PEMEX Deer Park Refinery in Deer Park, Texas. Two people died on site due to hydrogen sulfide exposure and numerous people were evaluated/treated for exposure. The initial update for this incident was published in November of 2024.

This most recent update provides a detailed description of the events that took place on the day of the incident, identifying the actions taken by the various personnel involved, and explicating how the two personnel died. Finally, the report identifies the remaining investigation steps.

 

For more information on the report, including a discussion of the ‘substantial property damage’ standard in the accidental release reporting rule, see my article at CFSN Detailed Analysis - https://patrickcoyle.substack.com/p/csb-publishes-second-update-into - subscription required.

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