# PHMSA Hazmat Incident I-2010100472 — SULFUR, MOLTEN — HOUSTON, TX

**Citation:** PHMSA Hazmat Incident I-2010100472  
**Type / status:** incident / historical  
**Agency:** Pipeline and Hazardous Materials Safety Administration  
**Effective:** 2010-09-11  
**Published:** Not stated

Serious reporter-submitted hazardous materials transportation incident on 2010-09-11 in HOUSTON, TX.

## Document text

PHMSA hazardous materials incident report I-2010100472.
Incident date: 2010-09-11.
Location: HOUSTON, TX.
Mode: Highway.
Carrier/reporter: GROENDYKE TRANSPORT, INC..
Shipper: CONOCO PHILLIPS.
Materials: NA2448; SULFUR, MOLTEN; hazard class 9; 300 LGA released.
What failed: Discharge Valve or Coupling.
How failed: Abraded.
Reported failure causes: Abrasion.
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.

## Provenance

- Official: Yes
- Source: <https://portal.phmsa.dot.gov/PDFGenerator/getPublicReport/OHMIR_5800-1-PUBLIC?INCIDENTID=Gqkvn2LXZAWQnDoqgiycVg%3D%3D>
- Source ID: `phmsa-hazmat-incidents`
- SHA-256: `858cd6a57eed00fa0f64d297fd87dbc88e6557e76012ef5d98477f817bdb756b`
- Retrieved: 2026-08-13T12:55:56.545Z
- Exported: 2026-08-24T16:53:46.384Z
- Document slug: `phmsa-hazmat-incident-i-2010100472`

### Source metadata

```json
{
  "materialSubtype": "phmsa_hazmat_serious_incident",
  "reportNumber": "I-2010100472",
  "operatorReported": true,
  "serious": true,
  "finalAgencyFinding": false,
  "eventDescriptionExcluded": true,
  "publicPdfUrl": "https://portal.phmsa.dot.gov/PDFGenerator/getPublicReport/OHMIR_5800-1-PUBLIC?INCIDENTID=Gqkvn2LXZAWQnDoqgiycVg%3D%3D",
  "rowCount": 1,
  "carrierReporterNames": [
    "GROENDYKE TRANSPORT, INC."
  ],
  "shipperNames": [
    "CONOCO PHILLIPS"
  ],
  "routes": [
    "8615 MANCHESTER BLVD"
  ],
  "cities": [
    "HOUSTON"
  ],
  "states": [
    "TX"
  ],
  "originCities": [],
  "modes": [
    "Highway"
  ],
  "materials": [
    {
      "identificationNumber": "NA2448",
      "commodityName": "SULFUR, MOLTEN",
      "hazardousClass": "9",
      "quantityReleased": "300",
      "unitOfMeasure": "LGA"
    }
  ],
  "packages": [
    {
      "identificationMarkings": "MC0",
      "outerMaterial": null,
      "outerType": null,
      "outerCapacity": "6625",
      "outerCapacityUnit": "LGA",
      "outerShipmentCount": "1",
      "outerFailedCount": "1",
      "innerMaterial": null,
      "innerType": null,
      "innerCapacity": "0",
      "innerCapacityUnit": null,
      "innerShipmentCount": "0",
      "innerFailedCount": "0"
    }
  ],
  "reportingRuleContext": [
    "171.15",
    "171.16"
  ],
  "caveat": "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.",
  "privacyCaveat": "The public CSV excludes preparer contact fields. Event Description is intentionally excluded from normalized records and search output to reduce incidental personal-information risk.",
  "jurisdiction": "US"
}
```