# PHMSA Hazmat Incident I-1977040933 — AMMONIA ANHYDROUS — CARTERET, NJ

**Citation:** PHMSA Hazmat Incident I-1977040933  
**Type / status:** incident / historical  
**Agency:** Pipeline and Hazardous Materials Safety Administration  
**Effective:** 1977-04-22  
**Published:** Not stated

Serious reporter-submitted hazardous materials transportation incident on 1977-04-22 in CARTERET, NJ.

## Document text

PHMSA hazardous materials incident report I-1977040933.
Incident date: 1977-04-22.
Location: CARTERET, NJ.
Mode: Highway.
Carrier/reporter: AMSCO DIV UNION OIL CO OF CA.
Shipper: UNITED STATES STEEL CORP.
Materials: UN1005; AMMONIA ANHYDROUS; hazard class 2.2; 389 LGA released.
What failed: Hose.
How failed: Burst or Ruptured.
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=BrD7saBY5d5eO3O3x546fA%3D%3D>
- Source ID: `phmsa-hazmat-incidents`
- SHA-256: `e11bd15970eab35af774ab8f9a975cc32f013ece9a66ce85d10fa968f6fe7a5e`
- Retrieved: 2026-08-13T12:55:56.545Z
- Exported: 2026-08-26T11:40:10.813Z
- Document slug: `phmsa-hazmat-incident-i-1977040933`

### Source metadata

```json
{
  "materialSubtype": "phmsa_hazmat_serious_incident",
  "reportNumber": "I-1977040933",
  "operatorReported": true,
  "serious": true,
  "finalAgencyFinding": false,
  "eventDescriptionExcluded": true,
  "publicPdfUrl": "https://portal.phmsa.dot.gov/PDFGenerator/getPublicReport/OHMIR_5800-1-PUBLIC?INCIDENTID=BrD7saBY5d5eO3O3x546fA%3D%3D",
  "rowCount": 1,
  "carrierReporterNames": [
    "AMSCO DIV UNION OIL CO OF CA"
  ],
  "shipperNames": [
    "UNITED STATES STEEL CORP"
  ],
  "routes": [],
  "cities": [
    "CARTERET"
  ],
  "states": [
    "NJ"
  ],
  "originCities": [
    "CLAIRTON"
  ],
  "modes": [
    "Highway"
  ],
  "materials": [
    {
      "identificationNumber": "UN1005",
      "commodityName": "AMMONIA ANHYDROUS",
      "hazardousClass": "2.2",
      "quantityReleased": "389",
      "unitOfMeasure": "LGA"
    }
  ],
  "packages": [
    {
      "identificationMarkings": null,
      "outerMaterial": null,
      "outerType": null,
      "outerCapacity": "30000",
      "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"
}
```