Incident I-1990010655PHMSA hazardous materials incident report I-1990010655. Incident date: 1990-01-07. Location: DUMAS, TX. Mode: Rail. Carrier/reporter: ATCHISON TOPEKA & SANTA FE RY. Shipper: HOWELL CHEM SYSTEMS. Materials: UN1149; DIBUTYL ETHERS; hazard class 3; 400 LGA released. What failed: Auxiliary Valve; Piping or Fittings. Reported failure causes: Loose Closure, Component, or Device. 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.#

This material provides agency context. It does not replace binding regulatory text, and its legal effect depends on the underlying authority and facts.

Treatment labels are shown only when backed by an indexed source relationship. Event dates link to official evidence.

1990-01-07incident

Serious hazardous materials incident I-1990010655

Ask the corpus

Claims link back to retrieved source passages.

Record details

Retrieved: Aug 13, 2026
Version: 1990-01-07

4805f26042ad3eaf46…