Yesterday, the Chemical Safety Board announced the publication of an update on their investigation of the May 26th, 2026, fatal white liquor release at the Nippon Dynawave Packaging Facility in Longview, WA. That incident killed 11 employees and seriously injured three other employees. CSB announced their investigation of the incident the following day.
The update published today provided background information on the facility, a description of the pulp process that produced and used the white liquor stored in the failed tank, and a brief overview of the incident timeline. The ongoing investigation is concentrating on:
- Inspecting G Tank and determining the failure mode and cause(s) of the tank failure;
- NDP’s mechanical integrity policies and practices;
- NDP’s actions to inspect, repair, and/or replace G Tank and other atmospheric storage tanks;
- NDP’s policies and practices to manage change;
- NDP’s capital project management policies and practices;
- NDP’s emergency response policies and procedures;
- NDP’s hazard evaluation policies and procedures; and
- Regulatory requirements and industry guidance for paper mills.
