Investigation will analysis the situations surrounding the release, including chemical managing practices, procedure safety systems and emergency reaction actions.
The U.S. Chemical Safety and Hazard Investigation Board (CSB) stated it has began an investigation into a deadly chemical launch at the Woodland Pulp facility in Baileyville, Maine, that took place Jan. 27, 2026.
As per the organization, the incident resulted in a one fatality including a 20-year-college intern and injured 9 other workers, 2-critically, with one still hospitalized. Initial information presented to the CSB showed the event may have included the integration of concentrated sulfuric acid with sulfurous compounds in an enclosed procedure sewer, producing hydrogen sulfide gas in the bleach plant area.
The CSB stated its investigation will examine the situations surrounding the release, consisting of chemical managing practices, safety systems and emergency response actions. Investigators have been deployed to the site and could collect proof, execute interviews and review applicable documents.
CSB Chairperson Steve Owens stated that the agency’s investigation will searching to evaluate the purpose of the incident and determine steps to avoid similar events.
In other current activity, the CSB released a safety video on the fatal 2017 combustible dust explosions at the Didion Milling facility in Wisconsin, where 5-workers were killed and 14 injured. The agency again referred to as on the Occupational Safety and Health Administration to form a comprehensive combustible dust popular for standard industry.
The CSB also reported that St. Louis updated its Mechanical Code to reinforce in-service inspections of boilers and pressure vessels, following recommendations issued after the 2017 explosion on the Loy-Lange Box Company that killed 4 people. As per the agency, the revisions adopt national inspection standards and set up minimal qualifications for inspectors.






