CSB Releases Pryor Trust Gas Well Factual Update

January 22, 2018, Blowout and Fire Fatally Injured Five Workers

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CSB Releases Factual Update on Blowout and Fire at Pryor Trust Gas Well in Pittsburg County, Oklahoma

The U.S. Chemical Safety Board (CSB) released a factual update into its ongoing investigation of the January 22, 2018, blowout and fire at the Pryor Trust...

CSB Releases Factual Update on Explosion and Fire at Husky Refinery Located in Superior, Wisconsin

Thursday, August 2, 2018 Superior, Wisconsin, August 2, 2018: Today the U.S. Chemical Safety Board (CSB) released a factual update into its ongoing investigation of the April 26,...

CSB Releases Human Capital Plan

For FY 2018 - 2021

CSB Releases Safety Digest on Startups and Shutdowns

Safety Digest highlights three incidents that occurred during a startup or shutdown, and provides lessons learned.

CSB Releases Safety Digest on 1999 Tosco Avon Refinery Fire

February 23, 1999, Tosco Avon refinery fire resulted in the deaths of four workers in Martinez, California, who were replacing corroded pipes in a distillation...

CSB Releases Preventive Maintenance Fact Sheet

CSB's Drivers of Critical Chemical Safety Change

CSB Interim Animation on Husky Refinery Explosion and Fire

8/2/2018 3:27:00 PM

Interim animation of the April 26, 2018, fire and explosion at the Husky Refinery in Superior, WI

Caught in the Storm Extreme Weather Hazards

5/24/2018 3:00:00 PM

CSB Safety Video about the 2017 Fire at the Arkema Chemical Plant in Crosby, Texas, following Hurricane Harvey

Animation of Explosion at PCA's DeRidder, Louisiana, Pulp and Paper Mill

4/4/2018 4:48:00 PM

About the CSB

The U.S. Chemical Safety Board (CSB) is an independent, nonregulatory federal agency that investigates the root causes of major chemical incidents.

Our mission is to drive chemical safety change through independent investigations to protect people and the environment. The agency was created under the Clean Air Act Amendments of 1990.

IN THE CSB’S 20-YEAR HISTORY, the agency has deployed to over 130 chemical incidents and issued more than 800 recommendations that have led to numerous safety improvements across a wide variety of industries. 

Current Investigations

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Red Mountain Operating Fatal Gas Well Explosion 

During drilling operations at a gas well in Pittsburg County Oklahoma, a large explosion fatally injured five workers....


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CSB issues safety recommendations to prevent similar incidents or hazards in the future.

View Recent Recommendation Status Updates....

completed Investigations

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Arkema Chemical Plant Fires in Crosby, Texas

Organic Peroxide Decomposition, Release, and Fire at Arkema Crosby Following Hurricane Harvey Flooding


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