PHMSA Hazmat Incident X-2021070025 — SULFURIC ACID, SPENT — ROXANA, IL

Current as of 2021-06-02 Government source

Pipeline and Hazardous Materials Safety AdministrationOfficial agency material

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Incident X-2021070025PHMSA hazardous materials incident report X-2021070025. Incident date: 2021-06-02. Location: ROXANA, IL. Mode: Rail. Carrier/reporter: Norfolk Southern. Shipper: Phillips 66 WRB Refinery. Materials: UN1832; SULFURIC ACID, SPENT; hazard class 8; 12.5 LGA released. What failed: Pressure Relief Valve or Device - Non-Reclosing; Pressure Relief Valve or Device - Reclosing. How failed: Vented; Vented. Reported failure causes: Commodity Polymerization; Over-pressurized. 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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