Incident X-2011120206PHMSA hazardous materials incident report X-2011120206. Incident date: 2011-11-30. Location: HANNA, WY. Mode: Rail. Carrier/reporter: Union Pacific Railroad. Shipper: Simplot Phosphates LLC. Materials: UN1805; PHOSPHORIC ACID SOLUTION; hazard class 8; 187.5 LGA released. What failed: Bottom Outlet Valve. How failed: Abraded. Reported failure causes: Derailment. Reported result: Spillage. 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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Retrieved: Aug 13, 2026
Version: 2011-11-30

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