{"operation":"document","citation":"PHMSA Hazmat Incident X-2025081952","title":"PHMSA Hazmat Incident X-2025081952 — ARGON, REFRIGERATED LIQUID (CRYOGENIC LIQUID) — DENISON, TX","source_type":"incident","agency":"Pipeline and Hazardous Materials Safety Administration","status":"historical","official":true,"published_on":null,"effective_on":"2025-08-22","summary":"Serious reporter-submitted hazardous materials transportation incident on 2025-08-22 in DENISON, TX.","machine_formats":{"json":"https://regulus.evalyn.ai/document/phmsa-hazmat-incident-x-2025081952.json","markdown":"https://regulus.evalyn.ai/document/phmsa-hazmat-incident-x-2025081952.md"},"app_url":"https://regulus.evalyn.ai/document/phmsa-hazmat-incident-x-2025081952","source_url":"https://portal.phmsa.dot.gov/PDFGenerator/getPublicReport/OHMIR_5800-1-PUBLIC?INCIDENTID=zorKqDie%2FGi%2BvSS2HOpeGQ%3D%3D","body":"PHMSA hazardous materials incident report X-2025081952.\nIncident date: 2025-08-22.\nLocation: DENISON, TX.\nMode: Rail.\nCarrier/reporter: UNION PACIFIC RAILROAD COMPANY INC.\nShipper: Airgas USA.\nMaterials: UN1951; ARGON, REFRIGERATED LIQUID (CRYOGENIC LIQUID); hazard class 2.2; 16520 LGA released.\nWhat failed: Liquid Line.\nHow failed: Leaked.\nReported failure causes: Broken Component or Device.\nReported result: Spillage.\nReporter-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.","truncated":false,"body_characters":706}