# PHMSA Hazmat Incident I-2024100158 — STYRENE MONOMER, STABILIZED — CLEVES, OH

- **operation:** document
- **citation:** PHMSA Hazmat Incident I-2024100158
- **title:** PHMSA Hazmat Incident I-2024100158 — STYRENE MONOMER, STABILIZED — CLEVES, OH
- **source type:** incident
- **agency:** Pipeline and Hazardous Materials Safety Administration
- **status:** historical
- **official:** true
- **published on:** Not available
- **effective on:** 2024-09-24
- **summary:** Serious reporter-submitted hazardous materials transportation incident on 2024-09-24 in CLEVES, OH.
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- **source url:** https://portal.phmsa.dot.gov/PDFGenerator/getPublicReport/OHMIR_5800-1-PUBLIC?INCIDENTID=A8LpH9WwqN61g0mhn%2BnAhw%3D%3D
**body:**

PHMSA hazardous materials incident report I-2024100158.
Incident date: 2024-09-24.
Location: CLEVES, OH.
Mode: Rail.
Carrier/reporter: CENTRAL RAILROAD CO OF INDIANA.
Shipper: INEOS STYROLUTION AMERICA LLC.
Materials: UN2055; STYRENE MONOMER, STABILIZED; hazard class 3; 6094.625 LGA released.
What failed: Pressure Relief Valve or Device - Non-Reclosing.
How failed: Vented.
Reported failure causes: Commodity Polymerization.
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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- **body characters:** 750