In an incident at a North St. Louis County Boeing facility, a hazardous substance spill compelled authorities to close roads and mobilize emergency response teams on Friday. The spill involved hundreds of gallons of nitric acid that leaked from a tanker truck during a loading operation at the aerospace company's 100 block of McDonnell Boulevard location, prompting a swift closure of eastbound McDonnell between Lindbergh and Byassee; the roads were reopened by 2:25 p.m. following the containment of the spill, as reported by First Alert 4.
While initial reports from the Hazelwood Fire Department indicated that up to over a thousand gallons were at risk of escaping the tanker, later clarifications, cited less than 1,000 gallons actually leaked, the Missouri Department of Natural Resources (DNR) broke down in water and would not require removal from Coldwater Creek leading to a somewhat assuaging forecast that residents would face no dangers from the event, though advised against creek activities while environmental sample results are pending. According to the First Alert 4, the DNR did not anticipate a lengthy cleanup process in the creek due to the nature of the chemical breakdown.
As detailed in an article by KSDK, efforts to manage the leak were comprehensive, involving the use of earth materials to dike the nitric acid, preventing further distribution into the stormwater system and Coldwater Creek. The fire crews faced not only the task of containing a potentially dangerous chemical spill but also did so under the stress of extreme heat, their protective gear adding to the challenge.
The incident, which took place at Boeing Aerospace Composite Center, spurred evacuations from the building where the spill occurred, although nearby businesses were not asked to evacuate, with reassurances coming from a Boeing spokesperson who stated, "The safety of our employees is our first priority," and notified that "The Hazelwood Fire Department and Boeing responded to an incident outside one of our facilities and the situation was safely resolved," a sentiment mirrored in KSDK report. Crews from multiple agencies played a role in the response, including DNR and the Missouri Sewer District, the latter tasked with ensuring that the cleanup was satisfactory, firefighters worked diligently following the initial response at 9 a.m.
