# PHMSA Hazmat Incident I-1997080918 — SODIUM HYDROXIDE, SOLUTION — HOLBROOK, AZ

**Citation:** PHMSA Hazmat Incident I-1997080918  
**Type / status:** incident / historical  
**Agency:** Pipeline and Hazardous Materials Safety Administration  
**Effective:** 1997-01-27  
**Published:** Not stated

Serious reporter-submitted hazardous materials transportation incident on 1997-01-27 in HOLBROOK, AZ.

## Document text

PHMSA hazardous materials incident report I-1997080918.
Incident date: 1997-01-27.
Location: HOLBROOK, AZ.
Mode: Rail.
Carrier/reporter: APACHE RAILWAY CO.
Shipper: FMC CORP / WESTERN STATES CHEM SUPPLY CO.
Materials: UN1824; SODIUM HYDROXIDE, SOLUTION; hazard class 8; 12.5 LGA released | UN2014; HYDROGEN, PEROXIDE, AQUEOUS SOLUTIONS WITH MORE THAN 40 PERCENT BUT NOT MORE THAN 60 PERCENT HYDROGEN PEROXIDE (STABILIZED AS NECESSARY); hazard class 5.1; 23300 LGA released.
What failed: Basic Material.
How failed: Burst or Ruptured / Ripped or Torn.
Reported failure causes: Derailment; Vehicular Crash or Accident Damage.
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=dKFnCvJxoItNO2rwNKycsg%3D%3D>
- Source ID: `phmsa-hazmat-incidents`
- SHA-256: `96e203f353a1700a505de45017f2834c74a5b0726dfaa0d049141964281af3dc`
- Retrieved: 2026-08-13T12:55:56.545Z
- Exported: 2026-08-24T05:04:10.450Z
- Document slug: `phmsa-hazmat-incident-i-1997080918`

### Source metadata

```json
{
  "materialSubtype": "phmsa_hazmat_serious_incident",
  "reportNumber": "I-1997080918",
  "operatorReported": true,
  "serious": true,
  "finalAgencyFinding": false,
  "eventDescriptionExcluded": true,
  "publicPdfUrl": "https://portal.phmsa.dot.gov/PDFGenerator/getPublicReport/OHMIR_5800-1-PUBLIC?INCIDENTID=dKFnCvJxoItNO2rwNKycsg%3D%3D",
  "rowCount": 2,
  "carrierReporterNames": [
    "APACHE RAILWAY CO"
  ],
  "shipperNames": [
    "FMC CORP",
    "WESTERN STATES CHEM SUPPLY CO"
  ],
  "routes": [
    "APACHE RAILWAY MILEPOST 1 1/2"
  ],
  "cities": [
    "HOLBROOK"
  ],
  "states": [
    "AZ"
  ],
  "originCities": [
    "BAYPORT",
    "HENDERSON"
  ],
  "modes": [
    "Rail"
  ],
  "materials": [
    {
      "identificationNumber": "UN1824",
      "commodityName": "SODIUM HYDROXIDE, SOLUTION",
      "hazardousClass": "8",
      "quantityReleased": "12.5",
      "unitOfMeasure": "LGA"
    },
    {
      "identificationNumber": "UN2014",
      "commodityName": "HYDROGEN, PEROXIDE, AQUEOUS SOLUTIONS WITH MORE THAN 40 PERCENT BUT NOT MORE THAN 60 PERCENT HYDROGEN PEROXIDE (STABILIZED AS NECESSARY)",
      "hazardousClass": "5.1",
      "quantityReleased": "23300",
      "unitOfMeasure": "LGA"
    }
  ],
  "packages": [
    {
      "identificationMarkings": null,
      "outerMaterial": null,
      "outerType": null,
      "outerCapacity": "24912.5",
      "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": "26450",
      "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"
}
```