CSB Updates Accidental Release Reporting Data – 12-1-25
On Thursday the CSB updated their published list of reported chemical release incidents. They added 58 new incidents that occurred since the previous version was published in July. These are not incidents that the CSB is investigating, these are incidents that were reported to the CSB under their Accidental Release Reporting rules (40 CFR 1604) through November 30th, 2025.
The table below shows the top five states based upon the number of reported incidents since the July update was published.
New Incidents
The new version of the database adds 58 new incidents reported since the July version of the data was published. The new incidents include seven incidents where deaths were involved, 34 with serious injuries and 27 where significant property damage was reported. Texas led the reporting with 12 incidents, with Louisiana having 9, while Indiana, Wyoming, and North Carolina each had three.
The table below shows the top eleven states with high reported incidents rates since the CSB started collecting their Accidental Release Reporting data in April 2020.
Incident Added
There were seven incidents dated before July 25th that were added to the table:
Incidents Not Reported
I have been tracking news reports about chemical incidents. While such reports are not necessarily conclusive evidence of a CSB reportable incident, the information included in the news reports seem to indicate that the following incidents should have been reported to CSB:
Holstein, NE – 8-20-25, possible,
Yonkers, NY – 9-2-25, possible,
Newburgh, IN – 9-6-25, probable,
Sacramento, CA – 11-4-25, possible,
Yazoo City, MS – 11-6-25, probable,
Tyler, TX – 11-20-25, probable,
NOTE: Those incidents marked ‘Possible’ were where news reports indicated that one or more people were transported to the hospital but did not note whether or not they were admitted. Transporting someone to the hospital does not make the incident CSB reportable, but admission does. Incidents marked ‘Probable’ were for incidents where news reports did not provide damage estimates, but the descriptions led me to believe that there was more than $1 million in damages.
Many of the facilities involved in these incidents are not part of what people normally consider to be ‘chemical industry’. This means that the owners might not even know about the Chemical Safety Board, much less its chemical release reporting regulations.


