All personnel were accounted for and evacuated as a result, a responder said on the scanner.
Earlier, Washington State Department of Ecology spokesperson Anna Izenman called the Wednesday morning incident a “chemical spill,” though local officials later determined that was not the case.
Izenman said the Wednesday incident was unrelated to the May 26 failed white liquor tank and any other operation with that spill.
“There is no risk to the public,” she said.
At about 8:15 a.m., a responder said on the scanner that “the incident is contained to a 300-foot radius at the site.”
“There is no further spread of the incident,” he said.
Cowlitz 2 reports this containment area was created out of precaution while crews searched for a possible spill.
The department reports officials will not release more information about the patient to protect his privacy.
The chemicals
The white liquor that spilled in May was comprised of sodium hydroxide, sodium sulfide and sodium carbonate, and converts wood into pulp through the kraft process.
Officials report that tank could hold up to 900,000 gallons, and was roughly two-thirds full at the time it failed at about 7:18 a.m. May 26.
All of the 11 workers killed, died as a result of burns from the chemicals.