Penn State Receives Contaminated "Empty" Transport Container
A returned shipment container manifested as "empty" arrived at Penn State with unexpected Na-24 residual contamination — a reverse logistics failure at the upstream disposal vendor. The university's textbook inbound receipt protocols caught it before it spread.
| Field | Value |
|---|---|
| Date Reported | February 12, 2026 |
| Location | Penn State University, Pennsylvania, USA |
| Incident Type | Contamination / Transportation |
| Source | Sodium-24 (Na-24) residual surface contamination |
| Confidence | 5/5 — NRC Event Report |
What Happened
Penn State University health physics personnel received a returned shipment container originally sent to a disposal facility containing Sodium-24. Upon surveying the purportedly "empty" package, personnel discovered unexpected residual radioactive contamination. The receiving facility was immediately locked down and the container secured in a restricted area. Exhaustive surveys confirmed contamination did not spread to the university facility or the commercial delivery vehicle. An investigation into the vendor's reverse logistics and decontamination protocols is ongoing.
Operational Lessons
Na-24 is a highly active, short-lived isotope (half-life ~14.96 hours) emitting high-energy gamma rays (1.36 MeV and 2.75 MeV). The failure occurred within the upstream reverse logistics chain — likely inadequate wet-swipes for removable surface contamination or insufficient decay-in-storage time before manifesting the container as "Empty" (UN2908).
Penn State's response exemplifies textbook operational readiness. For radiation safety professionals, this incident is a stark reminder that complacency during receipt of "empty" Type A or Type B containers is unacceptable. 10 CFR 20.1906 mandates monitoring of external surfaces of labeled packages for contamination — a protocol that must be enforced regardless of declared contents.