# TENNESSEE GAS PIPELINE COMPANY — Gas transmission and gathering — incident on 2015-02-10

**Citation:** PHMSA Report 20150028  
**Type / status:** incident / historical  
**Agency:** Pipeline and Hazardous Materials Safety Administration  
**Effective:** 2015-02-10  
**Published:** 2015-03-08

Gas transmission and gathering incident in HOPKINTON, MIDDLESEX County, MA. Reported cause: NATURAL FORCE DAMAGE. Reported consequences: 0 fatalities, 0 injuries, 11809 NATURAL GAS released, $2,980 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: not significant, not serious.

## Document text

Gas transmission and gathering incident in HOPKINTON, MIDDLESEX County, MA. Reported cause: NATURAL FORCE DAMAGE. Reported consequences: 0 fatalities, 0 injuries, 11809 NATURAL GAS released, $2,980 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: 20150028.

Operator ID: 19160.

Reported incident date: 2/10/2015 22:27.

Location detail: 448+40

Cause detail: TEMPERATURE

Cause detail: RAIN OR SNOW ENTERED VENT OF PILOT; RAIN OR SNOW FROZE; THE RESULTING ICE DEFORMED THE END OF THE PILOT CONTROLLER; DAMAGED CONTROLLER CAUSED RELIEF VALVE TO ACTIVATE BELOW 700 PSIG MAOP; EVENT WAS REPORTABLE AS NATURAL GAS RELEASED WAS >3,000 MCF;

PHMSA trend classification: not significant, not serious.

PHMSA standardized cause: NATURAL FORCE DAMAGE — TEMPERATURE.

PHMSA indexed costs: $55,150 reported total cost, $49,719.612 in 1984 dollars, $63,111 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: `22dee8c76cc64bf314d0371c5baab9588fa087bdac6109032e437b6519614f6c`
- Retrieved: 2026-08-20T03:30:32.010Z
- Exported: 2026-08-25T13:10:04.544Z
- Document slug: `phmsa-incident-7bb0743515a10d54bf622a56`

### Source metadata

```json
{
  "recordKind": "pipeline_incident",
  "datasetType": "gas_transmission_gathering",
  "datasetLabel": "Gas transmission and gathering",
  "datasetPeriod": "January 2010 to present",
  "report": {
    "number": "20150028",
    "supplementalNumber": "16673",
    "type": "ORIGINAL FINAL",
    "receivedDate": "2015-03-08",
    "receivedDateRaw": "3/8/2015"
  },
  "operator": {
    "id": "19160",
    "name": "TENNESSEE GAS PIPELINE COMPANY"
  },
  "incident": {
    "date": "2015-02-10",
    "dateRaw": "2/10/2015 22:27"
  },
  "location": {
    "city": "HOPKINTON",
    "county": "MIDDLESEX",
    "state": "MA",
    "postalCode": "01748",
    "latitude": 42.24442222,
    "longitude": -71.51562222,
    "type": "OPERATOR-CONTROLLED PROPERTY",
    "details": {
      "DESIGNATED_NAME": "448+40"
    },
    "facilityName": "TGP 200-2 LINE / COMPRESSOR STATION 267"
  },
  "cause": {
    "category": "NATURAL FORCE DAMAGE",
    "details": {
      "CAUSE_DETAILS": "TEMPERATURE",
      "NARRATIVE": "RAIN OR SNOW ENTERED VENT OF PILOT; RAIN OR SNOW FROZE; THE RESULTING ICE DEFORMED THE END OF THE PILOT CONTROLLER; DAMAGED CONTROLLER CAUSED RELIEF VALVE TO ACTIVATE BELOW 700 PSIG MAOP; EVENT WAS REPORTABLE AS NATURAL GAS RELEASED WAS >3,000 MCF;"
    }
  },
  "consequences": {
    "fatalities": 0,
    "injuries": 0,
    "commodity": "NATURAL GAS",
    "release": "11809",
    "propertyDamage": 2980,
    "estimatedOperatorCost": 0,
    "estimatedEmergencyCost": 350,
    "estimatedEnvironmentalCost": null,
    "ignition": "NO",
    "explosion": "NO",
    "evacuated": 0,
    "raw": {
      "FATAL": "0",
      "INJURE": "0",
      "UNINTENTIONAL_RELEASE": "11809",
      "EST_COST_PROP_DAMAGE": "2980",
      "PRPTY": "55150"
    }
  },
  "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": 1366,
    "rowSha256": "7237682a7ac4056631cb56e20a98647d4505214db1fc343e440ab7c81afd8efb"
  },
  "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": false,
      "serious": false
    },
    "standardizedCause": {
      "sevenCategory": "NATURAL FORCE DAMAGE",
      "sevenSubcategory": "TEMPERATURE",
      "eightCategory": "NATURAL FORCE DAMAGE",
      "eightSubcategory": "TEMPERATURE"
    },
    "costs": {
      "reported": 55150,
      "in1984Dollars": 49719.611561485624,
      "currentYearDollars": 63111.00017126603
    },
    "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": 627,
      "rowSha256": "63902408ad3884ad8cf196ad2ae7c6045011d0e9258badbcc9cc351285915118"
    }
  },
  "jurisdiction": "US",
  "operatorName": "TENNESSEE GAS PIPELINE COMPANY"
}
```