# ENBRIDGE OFFSHORE (GAS TRANSMISSION) LLC — Gas transmission and gathering — incident on 2011-11-22

**Citation:** PHMSA Report 20130105  
**Type / status:** incident / historical  
**Agency:** Pipeline and Hazardous Materials Safety Administration  
**Effective:** 2011-11-22  
**Published:** 2013-11-22

Gas transmission and gathering incident. Reported cause: CORROSION FAILURE. Reported consequences: 0 fatalities, 0 injuries, 80 NATURAL GAS released, $196,327 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

Gas transmission and gathering incident. Reported cause: CORROSION FAILURE. Reported consequences: 0 fatalities, 0 injuries, 80 NATURAL GAS released, $196,327 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: 20130105.

Operator ID: 18646.

Reported incident date: 11/22/2011 9:18.

Cause detail: INTERNAL CORROSION

Cause detail: PIN HOLE LEAK WAS REPAIRED BY CLAMP INSTALLATION ON 12-29-2011. ANOTHER LEAK DEVELOPED ON 12-29-2011. ANOTHER INCIDENT REPORT WAS INITIATED FOR THIS LINE ON 12-29-2013.

PHMSA trend classification: significant incident, not serious.

PHMSA standardized cause: CORROSION — INTERNAL.

PHMSA indexed costs: $298,327 reported total cost, $176,863.901 in 1984 dollars, $347,192.137 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/2b05c2d8-d14a-4c56-ac1c-7d23a4bc31c8?download=true&filename=Gas%20Transmission%20%26%20Gathering%20Incident%20Data%20-%20January%202010%20to%20present.zip>
- Source ID: `phmsa-pipeline-incidents`
- SHA-256: `c896be38fa84bb4471e705733b7d86a34ceb7b8703ffcf4c702d67dcde0fc0d4`
- Retrieved: 2026-08-20T03:30:32.010Z
- Exported: 2026-08-27T13:15:47.639Z
- Document slug: `phmsa-incident-b330cf5eabbd3189deb3412e`

### Source metadata

```json
{
  "recordKind": "pipeline_incident",
  "datasetType": "gas_transmission_gathering",
  "datasetLabel": "Gas transmission and gathering",
  "datasetPeriod": "January 2010 to present",
  "report": {
    "number": "20130105",
    "supplementalNumber": "16366",
    "type": "SUPPLEMENTAL",
    "receivedDate": "2013-11-22",
    "receivedDateRaw": "11/22/2013"
  },
  "operator": {
    "id": "18646",
    "name": "ENBRIDGE OFFSHORE (GAS TRANSMISSION) LLC"
  },
  "incident": {
    "date": "2011-11-22",
    "dateRaw": "11/22/2011 9:18"
  },
  "location": {
    "city": null,
    "county": null,
    "state": null,
    "postalCode": null,
    "latitude": 28.519722,
    "longitude": -92.563611,
    "type": "OFFSHORE",
    "details": {},
    "facilityName": null
  },
  "cause": {
    "category": "CORROSION FAILURE",
    "details": {
      "CAUSE_DETAILS": "INTERNAL CORROSION",
      "NARRATIVE": "PIN HOLE LEAK WAS REPAIRED BY CLAMP INSTALLATION ON 12-29-2011. ANOTHER LEAK DEVELOPED ON 12-29-2011. ANOTHER INCIDENT REPORT WAS INITIATED FOR THIS LINE ON 12-29-2013."
    }
  },
  "consequences": {
    "fatalities": 0,
    "injuries": 0,
    "commodity": "NATURAL GAS",
    "release": "80",
    "propertyDamage": 196327,
    "estimatedOperatorCost": 0,
    "estimatedEmergencyCost": 0,
    "estimatedEnvironmentalCost": null,
    "ignition": "NO",
    "explosion": "NO",
    "evacuated": 0,
    "raw": {
      "FATAL": "0",
      "INJURE": "0",
      "UNINTENTIONAL_RELEASE": "80",
      "EST_COST_PROP_DAMAGE": "196327",
      "PRPTY": "298327"
    }
  },
  "provenance": {
    "viewId": "27nc-rsge",
    "viewUrl": "https://data.transportation.gov/api/views/27nc-rsge",
    "assetId": "2b05c2d8-d14a-4c56-ac1c-7d23a4bc31c8",
    "archiveFilename": "Gas Transmission & Gathering Incident Data - January 2010 to present.zip",
    "archiveSha256": "fe0b136ca4b00ac987a8bc2e195098accf910d97512c5fc3b59e62d9da5f674e",
    "memberPath": "incident_gas_transmission_gathering_jan2010_present.txt",
    "memberSha256": "b435f2a25718cf54c54e00294e6788c4f9c6860e02fb86355e75d294c243c4dd",
    "rowNumber": 1768,
    "rowSha256": "bf27ee459e7a6f0607250b78d0e31f0c01d6ef04e717e243868bd559c1480ef6"
  },
  "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": "CORROSION",
      "eightSubcategory": "INTERNAL"
    },
    "costs": {
      "reported": 298327,
      "in1984Dollars": 176863.90119251315,
      "currentYearDollars": 347192.1373481096
    },
    "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": "gtggungs2010toPresent.xlsx",
      "sheet": "gtggungs2010toPresent",
      "rowNumber": 442,
      "rowSha256": "e0c4714d0d4217991de9eaf57b3263d0931419cf2191543f0132ac7c2db4f3a8"
    }
  },
  "jurisdiction": "US",
  "operatorName": "ENBRIDGE OFFSHORE (GAS TRANSMISSION) LLC"
}
```