The Longview Disaster Is a Hazmat Wake-Up Call for Industrial Response Departments

When firefighters in Longview, Washington arrived at the Nippon Dynawave Packaging facility on the morning of May 26, 2026, the initial report described an implosion or explosion with multiple burned victims and at least one person unaccounted for. At least one has grown to eleven confirmed deaths. One firefighter was among the injured.

This is one of the most significant industrial hazmat incidents in the United States in decades. Washington state officials called it the worst industrial disaster in the state since 1930. Departments near paper mills, chemical plants, refineries, or any facility that stores large volumes of industrial process chemicals need to look carefully at what happened in Longview and have some hard conversations about their own readiness.

What Happened at Nippon Dynawave

The Nippon Dynawave Packaging Company in Longview operates a facility that produces pulp used to make paper products and paperboard for cups, cartons, and containers. The plant has been operating in some form since the 1950s. On May 26, just after 7 a.m., a massive storage tank failed.

The tank was designed to hold 900,000 gallons of white liquor, a caustic chemical solution used in the kraft paper-making process. At the time of the failure, the tank was approximately 60 percent full, meaning somewhere around 540,000 gallons of highly corrosive chemical was released onto the plant floor and into drainage systems that connected to the Columbia River.

White liquor is not a household name, but it is a common industrial chemical in paper manufacturing. It is primarily a mixture of sodium hydroxide and sodium sulfide, the same type of strong alkaline compounds used industrially to break down wood fiber into pulp. On contact, white liquor causes severe chemical burns. Inhaling the vapors or aerosol produced by a large release can damage the lungs and eyes. It is not flammable in the traditional sense, so this was never a fire incident. It was always a chemical mass casualty event from the first radio report.

Nine workers died at the scene. Two others were transported to hospitals and later died from their injuries. Seven additional workers suffered burns and inhalation injuries. One responding firefighter was injured and treated at the scene before being released. Recovery of all eleven bodies took five full days, with the final victim recovered on May 31. The U.S. Chemical Safety and Hazard Investigation Board opened a formal investigation shortly after the incident.

The Challenge Facing the Responding Fire Service

For the firefighters and hazmat crews who responded, the incident presented a problem that structural firefighting training does not fully prepare departments for. There was no fire to fight. There was no smoke to read for ventilation decisions. The hazard was invisible in the sense that the primary danger was chemical exposure, and the scope of that exposure was not immediately clear on arrival.

Cowlitz 2 Fire and Rescue Chief Scott Goldstein described receiving initial reports of an implosion with multiple burned victims. The early picture was incomplete. Responders had to work through an evolving understanding of the chemical involved, the quantity released, and the extent of contamination while simultaneously attempting rescue and recovery operations.

Decontamination became the central operational challenge. Victims pulled from the scene had to be decontaminated before transport to hospitals. Remains recovered during the multi-day recovery operation had to be decontaminated before being released to the Cowlitz County Coroner. Hazmat crews used vacuum trucks and hundreds of feet of hose to move contaminated liquid mixtures out of the facility. Recovery operations were suspended each evening because the ongoing chemical hazard made nighttime work too dangerous for responders. The Columbia River received contamination from drainage at the site, prompting monitoring by the Washington Department of Ecology and the U.S. Environmental Protection Agency.

This was not a two-hour scene clearance. It was a five-day sustained operation in a contaminated industrial environment, with crews working in protective equipment and rotating through decontamination themselves after each operational period.

Four Questions Your Department Should Be Asking

The Longview incident is not just a news story. It is a functional case study that any department with industrial facilities in its response area should be using right now for planning discussions and training reviews.

The first question is what process chemicals your local facilities store and in what quantities. A 900,000-gallon tank of anything corrosive becomes a mass decontamination event if it fails catastrophically. Pre-incident planning that focuses on building layout, access points, and occupancy load is necessary but not sufficient for industrial sites. Chemical inventory needs to be part of that planning. The Material Safety Data Sheets for the chemicals present on site need to be in your pre-plan documentation, not just in a binder at the facility. Responding crews need to know what they are getting into before they commit to the hot zone.

The second question is whether your department has the decontamination capacity to handle an event at this scale. Longview drew hazmat crews from multiple agencies including Vancouver Fire. That mutual aid response was the right call and it worked, but it requires that those agreements are already in place and exercised before the incident happens. If your nearest industrial facility had a similar failure tomorrow, do you know who you are calling? Do those agencies have the right equipment? Have you trained together on mass decon operations? If the answer to any of those questions is no, that is a planning gap worth addressing before it becomes an operational problem.

The third question is whether your department can sustain multi-day operations in a contaminated environment. Longview's recovery ran for five days. That kind of sustained operation puts demands on departments that go well beyond a working structure fire. Crew rotation schedules, protective equipment inspection and replacement cycles, decontamination protocols for responders at the end of each operational period, and the logistics of keeping a large-scale operation running for nearly a week all require planning that most departments do not routinely exercise. This is an area where tabletop exercises with incident command leadership can surface gaps before they appear on an actual scene.

The fourth question is whether your department has an established relationship with the safety officers at the industrial facilities in your district, or whether you learn the hazards when you arrive on the call. Longview responders described arriving to a scene with burned victims and an evolving picture of what was in the tank. The Chemical Safety and Hazard Investigation Board's investigation may eventually surface information about pre-incident communication between the facility and local response agencies. Even without that report, the principle is straightforward. Facility safety officers have detailed knowledge of the chemicals on site, the quantities involved, the layout of storage systems, and the location of shutoffs and drainage pathways. Getting that information through a pre-incident walkthrough is dramatically better than getting it on arrival during a mass casualty event.

Understanding White Liquor and Industrial Chemical Hazards

It is worth spending a moment on the chemistry involved, because white liquor is a good example of a category of industrial chemical that is common in specific industries and almost unknown outside of them.

The kraft pulping process is the dominant method for producing paper pulp worldwide. It involves cooking wood chips under high pressure and temperature with a chemical mixture called white liquor. The sodium hydroxide in white liquor, also known as caustic soda or lye, breaks the chemical bonds that hold lignin and cellulose together in wood fiber. Sodium sulfide assists that process. The result is separated wood pulp that can be processed into paper products.

Because this process requires heat and pressure, white liquor is typically stored in large heated tanks under pressure. When a tank fails, the release is not a slow leak. It is a rapid, high-volume discharge of a heated caustic liquid under pressure, which is exactly what happened at Nippon Dynawave.

Departments that respond to paper mills, textile plants, water treatment facilities, food processing plants, and chemical manufacturing sites may encounter similar industrial chemical storage situations. The specific chemicals vary, but the pattern is consistent. Large volumes. Process-critical chemicals that are handled routinely and therefore sometimes perceived as lower risk than they are. Storage infrastructure that is periodically maintained but that can fail in ways that produce mass casualty events when it does.

What Comes Next

The U.S. Chemical Safety and Hazard Investigation Board investigation into the Longview incident will take months to complete. When their final report is published, it will likely contain detailed findings about the failure mode of the tank, the sequence of events leading up to the implosion, the response operations, and recommendations for prevention and emergency response. That report, when it is released, should be on the reading list of every officer in a department that has industrial hazmat in its response profile.

In the meantime, this incident is a credible and urgent argument for pulling out your pre-incident plans for any large chemical storage facility in your district and reviewing them with honest eyes. Not to check a compliance box, but to genuinely ask whether your department is prepared to operate effectively on day one, day two, and day five of an incident like this one.

Eleven workers died in Longview. Their families are dealing with a loss that was sudden, violent, and preventable in ways that investigators are still working to understand. The fire service cannot bring them back. What it can do is take this incident seriously as a training and planning opportunity, and make sure the next department that faces something like this is better prepared than anyone was on May 26.

That is how the fire service honors the lessons that come from the worst days on the job.