# FOUR CORNERS PIPELINE CO — Hazardous liquid — incident on 1991-10-05

**Citation:** PHMSA Report 19910180  
**Type / status:** incident / historical  
**Agency:** Pipeline and Hazardous Materials Safety Administration  
**Effective:** 1991-10-05  
**Published:** 1991-10-30

Hazardous liquid incident in KERN County, CA. Reported cause: CORROSION. Reported consequences: 0 fatalities, 0 injuries, 103 CRUDE OIL released, $7,500 reported property damage. Operator-reported incident data submitted to PHMSA, generally within 30 days. Records may be supplemented or corrected and do not represent final agency causal findings. PHMSA trend classification: significant incident, not serious.

## Document text

Hazardous liquid incident in KERN County, CA. Reported cause: CORROSION. Reported consequences: 0 fatalities, 0 injuries, 103 CRUDE OIL released, $7,500 reported property damage. Operator-reported incident data submitted to PHMSA, generally within 30 days. Records may be supplemented or corrected and do not represent final agency causal findings.

Report number: 19910180.

Operator ID: 5522.

Reported incident date: 19911005.

Location detail: 300 FT. EAST OF GRAPEVINE PUMP STATION NEAR INTERSTATE 5.

Cause detail: CORROSION, INTERNAL

Cause detail: Internal corrosion in 8" deadleg, lateral. One hundred barrels containedin concrete vaults. Three barrels overflowed on ground.

PHMSA trend classification: significant incident, not serious.

PHMSA standardized cause: CORROSION — INTERNAL.

PHMSA indexed costs: $7,500 reported total cost, $6,019.887 in 1984 dollars, $14,825.13 in current-year dollars.

PHMSA trend flags, standardized causes, and indexed costs are analytical fields added to operator-reported incident data. They do not represent final agency causal findings.

## Provenance

- Official: Yes
- Source: <https://data.transportation.gov/api/views/27nc-rsge/files/2cb38c7d-9a3e-4074-b175-05a5cd0c44a6?download=true&filename=Hazardous%20Liquid%20Accident%20Data%201986%20to%20January%202002.zip>
- Source ID: `phmsa-pipeline-incidents`
- SHA-256: `dd3628212b7965dccad312535006f98d1d58abc35e190b0842390e5092e584db`
- Retrieved: 2026-08-20T03:30:32.010Z
- Exported: 2026-08-26T13:16:22.666Z
- Document slug: `phmsa-incident-3e87eb32b833a2749c09f7c0`

### Source metadata

```json
{
  "recordKind": "pipeline_incident",
  "datasetType": "hazardous_liquid",
  "datasetLabel": "Hazardous liquid",
  "datasetPeriod": "1986 to January 2002",
  "report": {
    "number": "19910180",
    "supplementalNumber": null,
    "type": null,
    "receivedDate": "1991-10-30",
    "receivedDateRaw": "19911030"
  },
  "operator": {
    "id": "5522",
    "name": "FOUR CORNERS PIPELINE CO"
  },
  "incident": {
    "date": "1991-10-05",
    "dateRaw": "19911005"
  },
  "location": {
    "city": null,
    "county": "KERN",
    "state": "CA",
    "postalCode": null,
    "latitude": null,
    "longitude": null,
    "type": null,
    "details": {
      "SPLOC": "300 FT. EAST OF GRAPEVINE PUMP STATION NEAR INTERSTATE 5."
    },
    "facilityName": null
  },
  "cause": {
    "category": "CORROSION",
    "details": {
      "CAUSO": "CORROSION, INTERNAL",
      "NARRATIVE": "Internal corrosion in 8\" deadleg, lateral. One hundred barrels containedin concrete vaults. Three barrels overflowed on ground."
    }
  },
  "consequences": {
    "fatalities": 0,
    "injuries": 0,
    "commodity": "CRUDE OIL",
    "release": "103",
    "propertyDamage": 7500,
    "estimatedOperatorCost": null,
    "estimatedEmergencyCost": null,
    "estimatedEnvironmentalCost": null,
    "ignition": "No",
    "explosion": "No",
    "evacuated": null,
    "raw": {
      "TFAT": "0",
      "TINJ": "0",
      "LOSS": "103",
      "PRPTY": "7500"
    }
  },
  "provenance": {
    "viewId": "27nc-rsge",
    "viewUrl": "https://data.transportation.gov/api/views/27nc-rsge",
    "assetId": "2cb38c7d-9a3e-4074-b175-05a5cd0c44a6",
    "archiveFilename": "Hazardous Liquid Accident Data 1986 to January 2002.zip",
    "archiveSha256": "167f43ed67c6c8f8086e0f1569e3178ba5363ed16a92d07e7a5158ca10d0da81",
    "memberPath": "accident_hazardous_liquid_1986_jan2002.txt",
    "memberSha256": "5393d66148b604a624c8d99c457cc1fd518d73b60e927c9973cd3992bc2d5315",
    "rowNumber": 1179,
    "rowSha256": "64c7cdeb7cf235c219ecb399b596a94830ab13956a2efec59d25562130db8903"
  },
  "caveat": "Operator-reported incident data submitted to PHMSA, generally within 30 days. Records may be supplemented or corrected and do not represent final agency causal findings.",
  "operatorReported": true,
  "finalAgencyFinding": false,
  "flaggedAnalysis": {
    "dataAsOf": "2026-07-31",
    "flags": {
      "fireFirst": null,
      "significant": true,
      "serious": false
    },
    "standardizedCause": {
      "sevenCategory": "CORROSION",
      "sevenSubcategory": "INTERNAL",
      "eightCategory": null,
      "eightSubcategory": null
    },
    "costs": {
      "reported": 7500,
      "in1984Dollars": 6019.8872295032,
      "currentYearDollars": 14825.1295336787
    },
    "caveat": "PHMSA trend flags, standardized causes, and indexed costs are analytical fields added to operator-reported incident data. They do not represent final agency causal findings.",
    "provenance": {
      "sourceUrl": "https://www.phmsa.dot.gov/sites/phmsa.dot.gov/files/data_statistics/pipeline/PHMSA_Pipeline_Safety_Flagged_Incidents.zip",
      "landingPageUrl": "https://www.phmsa.dot.gov/data-and-statistics/pipeline/pipeline-incident-flagged-files",
      "catalogUrl": "https://data.transportation.gov/Pipelines-and-Hazmat/Pipeline-Incident-Flagged-Files/qdme-9bbm",
      "retrievalMode": "official_live",
      "archivedAt": null,
      "archiveSha256": "317e6a3e16d60b9b677efe391dc40258b5dd7ead83fb8bea74cb553cedfbbdec",
      "workbook": "hl1986to2001.xlsx",
      "sheet": "hl1986to2001",
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    }
  },
  "jurisdiction": "US",
  "operatorName": "FOUR CORNERS PIPELINE CO"
}
```