# CHEVRON PIPELINE CO — Hazardous liquid — incident on 1991-01-17

**Citation:** PHMSA Report 19910038  
**Type / status:** incident / historical  
**Agency:** Pipeline and Hazardous Materials Safety Administration  
**Effective:** 1991-01-17  
**Published:** 1991-02-14

Hazardous liquid incident in PINOLE, CONTRA COSTA County, CA. Reported cause: OUTSIDE FORCE DAMAGE. Reported consequences: 0 fatalities, 0 injuries, 500 CRUDE OIL released, $0 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 PINOLE, CONTRA COSTA County, CA. Reported cause: OUTSIDE FORCE DAMAGE. Reported consequences: 0 fatalities, 0 injuries, 500 CRUDE OIL released, $0 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: 19910038.

Operator ID: 2731.

Reported incident date: 19910117.

Location detail: 890 SAN PABLO BLVD., PINOLE CA.

Cause detail: DAMAGE BY OTHERS

Cause detail: AN OPERATOR ON A 977 CAT LOADER HIT THE PIPELINE WHILE CLEANING TRASH AND CUTTING TOE OF SLOPE WHERE PIPELINES ARE BURIES IN A HILLSIDE. CRUDE OIL SPRAYED FROM PIPELINE & SPRAY WAS BLOWN BY WIND IN A NORTHERN DIRECTION.

PHMSA trend classification: significant incident, not serious.

PHMSA standardized cause: EXCAVATION DAMAGE — THIRD PARTY EXCAVATION DAMAGE.

PHMSA indexed costs: $0 reported total cost, $0 in 1984 dollars, $0 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: `773f1a8372b87247049b446911a0c4f12623bb08641d4cde37c61b3c46dd1171`
- Retrieved: 2026-08-20T03:30:32.010Z
- Exported: 2026-08-22T22:44:34.853Z
- Document slug: `phmsa-incident-6eb74b13e6701c3947654f11`

### Source metadata

```json
{
  "recordKind": "pipeline_incident",
  "datasetType": "hazardous_liquid",
  "datasetLabel": "Hazardous liquid",
  "datasetPeriod": "1986 to January 2002",
  "report": {
    "number": "19910038",
    "supplementalNumber": null,
    "type": null,
    "receivedDate": "1991-02-14",
    "receivedDateRaw": "19910214"
  },
  "operator": {
    "id": "2731",
    "name": "CHEVRON PIPELINE CO"
  },
  "incident": {
    "date": "1991-01-17",
    "dateRaw": "19910117"
  },
  "location": {
    "city": "PINOLE",
    "county": "CONTRA COSTA",
    "state": "CA",
    "postalCode": null,
    "latitude": null,
    "longitude": null,
    "type": null,
    "details": {
      "SPLOC": "890 SAN PABLO BLVD., PINOLE CA."
    },
    "facilityName": null
  },
  "cause": {
    "category": "OUTSIDE FORCE DAMAGE",
    "details": {
      "CAUSO": "DAMAGE BY OTHERS",
      "NARRATIVE": "AN OPERATOR ON A 977 CAT LOADER HIT THE PIPELINE WHILE CLEANING TRASH AND CUTTING TOE OF SLOPE WHERE PIPELINES ARE BURIES IN A HILLSIDE. CRUDE OIL SPRAYED FROM PIPELINE & SPRAY WAS BLOWN BY WIND IN A NORTHERN DIRECTION."
    }
  },
  "consequences": {
    "fatalities": 0,
    "injuries": 0,
    "commodity": "CRUDE OIL",
    "release": "500",
    "propertyDamage": 0,
    "estimatedOperatorCost": null,
    "estimatedEmergencyCost": null,
    "estimatedEnvironmentalCost": null,
    "ignition": "No",
    "explosion": "No",
    "evacuated": null,
    "raw": {
      "TFAT": "0",
      "TINJ": "0",
      "LOSS": "500",
      "PRPTY": "0"
    }
  },
  "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": 1039,
    "rowSha256": "283c6624da0f0b6f4afd63def0028d091fce52cfc84fcb672a38e8892c74c482"
  },
  "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": "EXCAVATION DAMAGE",
      "sevenSubcategory": "THIRD PARTY EXCAVATION DAMAGE",
      "eightCategory": null,
      "eightSubcategory": null
    },
    "costs": {
      "reported": 0,
      "in1984Dollars": 0,
      "currentYearDollars": 0
    },
    "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",
      "rowNumber": 989,
      "rowSha256": "fb46ad3a238c0422c563057cdabbe5bfc12c3e1e7fe683ffe9afe4ce80deaf05"
    }
  },
  "jurisdiction": "US",
  "operatorName": "CHEVRON PIPELINE CO"
}
```