# PHMSA Hazmat Incident X-2021070158 — SULFUR, MOLTEN — SIBLEY, IA

- **operation:** document
- **citation:** PHMSA Hazmat Incident X-2021070158
- **title:** PHMSA Hazmat Incident X-2021070158 — SULFUR, MOLTEN — SIBLEY, IA
- **source type:** incident
- **agency:** Pipeline and Hazardous Materials Safety Administration
- **status:** historical
- **official:** true
- **published on:** Not available
- **effective on:** 2021-05-16
- **summary:** Serious reporter-submitted hazardous materials transportation incident on 2021-05-16 in SIBLEY, IA.
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- **source url:** https://portal.phmsa.dot.gov/PDFGenerator/getPublicReport/OHMIR_5800-1-PUBLIC?INCIDENTID=esWaja3ighaiew%2Ff%2FtG89g%3D%3D
**body:**

PHMSA hazardous materials incident report X-2021070158.
Incident date: 2021-05-16.
Location: SIBLEY, IA.
Mode: Rail.
Carrier/reporter: UNION PACIFIC RAILROAD.
Shipper: ERCO Worldwide / Flint Hills Resources LP / MARATHON PETROLEUM COMPANY LP.
Materials: NA2448; SULFUR, MOLTEN; hazard class 9; 22413.875 LGA released | NA2448; SULFUR, MOLTEN; hazard class 9; 6813.375 LGA released | UN1203; GASOLINE INCLUDES GASOLINE MIXED WITH ETHYL ALCOHOL, WITH NOT MORE THAN 10% ALCOHOL; hazard class 3; 27518 LGA released | UN1203; GASOLINE INCLUDES GASOLINE MIXED WITH ETHYL ALCOHOL, WITH NOT MORE THAN 10% ALCOHOL; hazard class 3; 27816 LGA released | UN1203; GASOLINE INCLUDES GASOLINE MIXED WITH ETHYL ALCOHOL, WITH NOT MORE THAN 10% ALCOHOL; hazard class 3; 28028 LGA released | UN1789; HYDROCHLORIC ACID; hazard class 8; 11875 LGA released | UN1789; HYDROCHLORIC ACID; hazard class 8; 18346.875 LGA released | UN1789; HYDROCHLORIC ACID; hazard class 8; 6071.875 LGA released | UN1814; POTASSIUM HYDROXIDE, SOLUTION; hazard class 8; 191750 LGA released | UN3257; ELEVATED TEMPERATURE LIQUID, N.O.S., AT OR ABOVE 100 C AND BELOW ITS FLASH POINT (INCLUDING MOLTEN METALS, MOLTEN SALTS, ETC.); hazard class 9; 11789.875 LGA released.
What failed: Bottom Outlet Valve / Gasket / Manway or Dome Cover / Tank Head / Tank Shell.
How failed: Leaked.
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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