# PHMSA Hazmat Incident I-1998080486 — AMMONIUM NITRATE, WITH NOT MORE THAN 0.2% OF COMBUSTIBLE MATERIALS, INCLUDING ANY ORGANIC SUBSTANCE CALCULATED AS CARBON TO THE EXCLUSION OF ANY OTHER ADDED SUBSTANCE — PAGE, WA

**Citation:** PHMSA Hazmat Incident I-1998080486  
**Type / status:** incident / historical  
**Agency:** Pipeline and Hazardous Materials Safety Administration  
**Effective:** 1998-06-29  
**Published:** Not stated

Serious reporter-submitted hazardous materials transportation incident on 1998-06-29 in PAGE, WA.

## Document text

PHMSA hazardous materials incident report I-1998080486.
Incident date: 1998-06-29.
Location: PAGE, WA.
Mode: Rail.
Carrier/reporter: UNION PACIFIC RAILROAD CO.
Shipper: AGRIUM US INC / PRAXAIR CANADA INC.
Materials: UN1942; AMMONIUM NITRATE, WITH NOT MORE THAN 0.2% OF COMBUSTIBLE MATERIALS, INCLUDING ANY ORGANIC SUBSTANCE CALCULATED AS CARBON TO THE EXCLUSION OF ANY OTHER ADDED SUBSTANCE; hazard class 5.1; 1200 SLB released | UN1951; ARGON, REFRIGERATED LIQUID (CRYOGENIC LIQUID); hazard class 2.2; 16302 LGA released | UN1951; ARGON, REFRIGERATED LIQUID (CRYOGENIC LIQUID); hazard class 2.2; 16309 LGA released.
What failed: Auxiliary Valve; Piping or Fittings / Basic Material.
How failed: Cracked / Ripped or Torn.
Reported failure causes: Derailment; Rollover Accident.
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=%2BYHq0KBeJ3WQEiGdHsfyQA%3D%3D>
- Source ID: `phmsa-hazmat-incidents`
- SHA-256: `7747d2465e03e63dc3902422aeebadd26bce7498ab8b213f7d655f8eb06193ba`
- Retrieved: 2026-08-13T12:55:56.545Z
- Exported: 2026-08-27T16:21:04.752Z
- Document slug: `phmsa-hazmat-incident-i-1998080486`

### Source metadata

```json
{
  "materialSubtype": "phmsa_hazmat_serious_incident",
  "reportNumber": "I-1998080486",
  "operatorReported": true,
  "serious": true,
  "finalAgencyFinding": false,
  "eventDescriptionExcluded": true,
  "publicPdfUrl": "https://portal.phmsa.dot.gov/PDFGenerator/getPublicReport/OHMIR_5800-1-PUBLIC?INCIDENTID=%2BYHq0KBeJ3WQEiGdHsfyQA%3D%3D",
  "rowCount": 3,
  "carrierReporterNames": [
    "UNION PACIFIC RAILROAD CO"
  ],
  "shipperNames": [
    "AGRIUM US INC",
    "PRAXAIR CANADA INC"
  ],
  "routes": [
    "SPOKANE SUB"
  ],
  "cities": [
    "PAGE"
  ],
  "states": [
    "WA"
  ],
  "originCities": [
    "CLOVER BAR",
    "ELK ISLAND"
  ],
  "modes": [
    "Rail"
  ],
  "materials": [
    {
      "identificationNumber": "UN1942",
      "commodityName": "AMMONIUM NITRATE, WITH NOT MORE THAN 0.2% OF COMBUSTIBLE MATERIALS, INCLUDING ANY ORGANIC SUBSTANCE CALCULATED AS CARBON TO THE EXCLUSION OF ANY OTHER ADDED SUBSTANCE",
      "hazardousClass": "5.1",
      "quantityReleased": "1200",
      "unitOfMeasure": "SLB"
    },
    {
      "identificationNumber": "UN1951",
      "commodityName": "ARGON, REFRIGERATED LIQUID (CRYOGENIC LIQUID)",
      "hazardousClass": "2.2",
      "quantityReleased": "16302",
      "unitOfMeasure": "LGA"
    },
    {
      "identificationNumber": "UN1951",
      "commodityName": "ARGON, REFRIGERATED LIQUID (CRYOGENIC LIQUID)",
      "hazardousClass": "2.2",
      "quantityReleased": "16309",
      "unitOfMeasure": "LGA"
    }
  ],
  "packages": [
    {
      "identificationMarkings": null,
      "outerMaterial": null,
      "outerType": null,
      "outerCapacity": "16302",
      "outerCapacityUnit": "LGA",
      "outerShipmentCount": "1",
      "outerFailedCount": "1",
      "innerMaterial": null,
      "innerType": null,
      "innerCapacity": "0",
      "innerCapacityUnit": null,
      "innerShipmentCount": "0",
      "innerFailedCount": "0"
    },
    {
      "identificationMarkings": null,
      "outerMaterial": null,
      "outerType": null,
      "outerCapacity": "16309",
      "outerCapacityUnit": "LGA",
      "outerShipmentCount": "1",
      "outerFailedCount": "1",
      "innerMaterial": null,
      "innerType": null,
      "innerCapacity": "0",
      "innerCapacityUnit": null,
      "innerShipmentCount": "0",
      "innerFailedCount": "0"
    },
    {
      "identificationMarkings": null,
      "outerMaterial": null,
      "outerType": null,
      "outerCapacity": "200000",
      "outerCapacityUnit": "SLB",
      "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"
}
```