# PHMSA Hazmat Incident I-1978111118 — SULFURIC ACID — CLIFTON, AZ

**Citation:** PHMSA Hazmat Incident I-1978111118  
**Type / status:** incident / historical  
**Agency:** Pipeline and Hazardous Materials Safety Administration  
**Effective:** 1978-10-31  
**Published:** Not stated

Serious reporter-submitted hazardous materials transportation incident on 1978-10-31 in CLIFTON, AZ.

## Document text

PHMSA hazardous materials incident report I-1978111118.
Incident date: 1978-10-31.
Location: CLIFTON, AZ.
Mode: Highway.
Carrier/reporter: JADE TRANSPORTATION CO INC.
Shipper: PHELPS DODGE CORP.
Materials: UN1830; SULFURIC ACID; hazard class 8; 3144 LGA released.
How failed: Punctured.
Reported failure causes: 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=0kW4Jh9eHOMI%2FwnROs1k6g%3D%3D>
- Source ID: `phmsa-hazmat-incidents`
- SHA-256: `ceaabb6fd21dc314f33d98ab4b898f6e8dffe1b1b713c2748d06dbca07a1b751`
- Retrieved: 2026-08-13T12:55:56.545Z
- Exported: 2026-08-24T11:16:19.306Z
- Document slug: `phmsa-hazmat-incident-i-1978111118`

### Source metadata

```json
{
  "materialSubtype": "phmsa_hazmat_serious_incident",
  "reportNumber": "I-1978111118",
  "operatorReported": true,
  "serious": true,
  "finalAgencyFinding": false,
  "eventDescriptionExcluded": true,
  "publicPdfUrl": "https://portal.phmsa.dot.gov/PDFGenerator/getPublicReport/OHMIR_5800-1-PUBLIC?INCIDENTID=0kW4Jh9eHOMI%2FwnROs1k6g%3D%3D",
  "rowCount": 1,
  "carrierReporterNames": [
    "JADE TRANSPORTATION CO INC"
  ],
  "shipperNames": [
    "PHELPS DODGE CORP"
  ],
  "routes": [],
  "cities": [
    "CLIFTON"
  ],
  "states": [
    "AZ"
  ],
  "originCities": [
    "MORENCI"
  ],
  "modes": [
    "Highway"
  ],
  "materials": [
    {
      "identificationNumber": "UN1830",
      "commodityName": "SULFURIC ACID",
      "hazardousClass": "8",
      "quantityReleased": "3144",
      "unitOfMeasure": "LGA"
    }
  ],
  "packages": [
    {
      "identificationMarkings": null,
      "outerMaterial": null,
      "outerType": null,
      "outerCapacity": "3400",
      "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"
}
```