# PHMSA Hazmat Incident I-2005090035 — AMMONIA ANHYDROUS — LAKE CHARLES, LA

**Citation:** PHMSA Hazmat Incident I-2005090035  
**Type / status:** incident / historical  
**Agency:** Pipeline and Hazardous Materials Safety Administration  
**Effective:** 2005-08-06  
**Published:** Not stated

Serious reporter-submitted hazardous materials transportation incident on 2005-08-06 in LAKE CHARLES, LA.

## Document text

PHMSA hazardous materials incident report I-2005090035.
Incident date: 2005-08-06.
Location: LAKE CHARLES, LA.
Mode: Rail.
Carrier/reporter: UNION PACIFIC RAILROAD.
Shipper: TERRA INDUSTRIES.
Materials: UN1005; AMMONIA ANHYDROUS; hazard class 2.2; 0.001044 GCF released.
What failed: O-Ring or Seals; Pressure Relief Valve or Device - Reclosing; Valve Seat.
How failed: Leaked.
Reported failure causes: Deterioration or Aging.
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.

## Provenance

- Official: Yes
- Source: <https://portalpublic.phmsa.dot.gov/analytics/saw.dll?Portal?PortalPath=/shared/Public%20Website%20Pages/_portal/Hazmat%20Incident%20Report%20Search>
- Source ID: `phmsa-hazmat-incidents`
- SHA-256: `9e6f4ac0c392e967dd22db7c6a2ec81374c0fbf06f7d51b9c2fc8eddf3ec765f`
- Retrieved: 2026-08-13T12:55:56.545Z
- Exported: 2026-08-25T17:02:14.214Z
- Document slug: `phmsa-hazmat-incident-i-2005090035`

### Source metadata

```json
{
  "materialSubtype": "phmsa_hazmat_serious_incident",
  "reportNumber": "I-2005090035",
  "operatorReported": true,
  "serious": true,
  "finalAgencyFinding": false,
  "eventDescriptionExcluded": true,
  "publicPdfUrl": null,
  "rowCount": 1,
  "carrierReporterNames": [
    "UNION PACIFIC RAILROAD"
  ],
  "shipperNames": [
    "TERRA INDUSTRIES"
  ],
  "routes": [
    "MILEPOST: 217.70"
  ],
  "cities": [
    "LAKE CHARLES"
  ],
  "states": [
    "LA"
  ],
  "originCities": [
    "DONALDSONVILLE"
  ],
  "modes": [
    "Rail"
  ],
  "materials": [
    {
      "identificationNumber": "UN1005",
      "commodityName": "AMMONIA ANHYDROUS",
      "hazardousClass": "2.2",
      "quantityReleased": "0.001044",
      "unitOfMeasure": "GCF"
    }
  ],
  "packages": [
    {
      "identificationMarkings": "DOT 105J300W",
      "outerMaterial": "CARBON STEEL",
      "outerType": null,
      "outerCapacity": "4547.7936",
      "outerCapacityUnit": "GCF",
      "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"
}
```