# PHMSA Hazmat Incident X-2025090947 — AMMONIA ANHYDROUS — CHARLOTTE, NC

- **operation:** document
- **citation:** PHMSA Hazmat Incident X-2025090947
- **title:** PHMSA Hazmat Incident X-2025090947 — AMMONIA ANHYDROUS — CHARLOTTE, NC
- **source type:** incident
- **agency:** Pipeline and Hazardous Materials Safety Administration
- **status:** historical
- **official:** true
- **published on:** Not available
- **effective on:** 2025-09-04
- **summary:** Serious reporter-submitted hazardous materials transportation incident on 2025-09-04 in CHARLOTTE, NC.
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- **source url:** https://portal.phmsa.dot.gov/PDFGenerator/getPublicReport/OHMIR_5800-1-PUBLIC?INCIDENTID=jdIWyu3GOMnJ4Dhuo4lecA%3D%3D
**body:**

PHMSA hazardous materials incident report X-2025090947.
Incident date: 2025-09-04.
Location: CHARLOTTE, NC.
Mode: Rail.
Carrier/reporter: NORFOLK SOUTHERN CORP.
Shipper: AIRGAS SPECIALTY PRODUCTS.
Materials: UN1005; AMMONIA ANHYDROUS; hazard class 2.2; 0.013368 GCF released.
What failed: Closure (e.g., Cap, Top, or Plug); Vapor Valve.
How failed: Leaked; Leaked.
Reported failure causes: Corrosion - Exterior; Valve Open.
Reported result: Vapor(Gas) Dispersion.
Reporter-submitted DOT Form 5800.1 data may be incomplete, corrected, supplemented, or misreported. A record, serious-incident classification, failure description, or relationship to a reporting rule is not a PHMSA causal finding, compliance determination, or finding of a violation.
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