# TENNESSEE GAS PIPELINE COMPANY — Gas transmission and gathering — incident on 2013-06-12

**Citation:** PHMSA Report 20130063  
**Type / status:** incident / historical  
**Agency:** Pipeline and Hazardous Materials Safety Administration  
**Effective:** 2013-06-12  
**Published:** 2013-07-10

Gas transmission and gathering incident in ISOLA, HUMPHREYS County, MS. Reported cause: INCORRECT OPERATION. Reported consequences: 0 fatalities, 0 injuries, 3235 NATURAL GAS 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: not significant, not serious.

## Document text

Gas transmission and gathering incident in ISOLA, HUMPHREYS County, MS. Reported cause: INCORRECT OPERATION. Reported consequences: 0 fatalities, 0 injuries, 3235 NATURAL GAS 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: 20130063.

Operator ID: 19160.

Reported incident date: 6/12/2013 0:08.

Location detail: 843-1B - 0+00

Cause detail: OTHER INCORRECT OPERATION

Cause detail: TGP COMPRESSOR STATION 843; OPERATOR WAS ON SITE; EVENT OCCURRED AFTER STATION CAME ON LINE; RELIEF VALVE OPERATED PREMATURELY; RELIEF VALVE DID NOT SEAT; STATION ESD OCCURRED; INVESTIGATION AND REPAIR OF RELIEF VALVE FOUND A SMALL AMOUNT OF SLUDGE IN O-RING OF RELIEF VALVE WHICH MAY HAVE CONTRIBUTED TO THE EVENT; PRESSURE TRANSMITTERS WERE INSPECTED AND FOUND TO BE IN CALIBRATION; RELIEF VALVE WAS TESTED AND CONSISTENTLY LIFTED DURING TESTING;

PHMSA trend classification: not significant, not serious.

PHMSA standardized cause: INCORRECT OPERATION — OTHER INCORRECT OPERATION.

PHMSA indexed costs: $32,334 reported total cost, $25,646.043 in 1984 dollars, $32,639.112 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: `eb653f5abe80b79ec8d34d023ade6ea0f2d551aa82f5d27b848369dff7b35140`
- Retrieved: 2026-08-20T03:30:32.010Z
- Exported: 2026-08-25T18:12:58.989Z
- Document slug: `phmsa-incident-811c3628696154521b9bc140`

### Source metadata

```json
{
  "recordKind": "pipeline_incident",
  "datasetType": "gas_transmission_gathering",
  "datasetLabel": "Gas transmission and gathering",
  "datasetPeriod": "January 2010 to present",
  "report": {
    "number": "20130063",
    "supplementalNumber": "16147",
    "type": "SUPPLEMENTAL FINAL",
    "receivedDate": "2013-07-10",
    "receivedDateRaw": "7/10/2013"
  },
  "operator": {
    "id": "19160",
    "name": "TENNESSEE GAS PIPELINE COMPANY"
  },
  "incident": {
    "date": "2013-06-12",
    "dateRaw": "6/12/2013 0:08"
  },
  "location": {
    "city": "ISOLA",
    "county": "HUMPHREYS",
    "state": "MS",
    "postalCode": "38754",
    "latitude": 33.23247,
    "longitude": -90.57925,
    "type": "OPERATOR-CONTROLLED PROPERTY",
    "details": {
      "DESIGNATED_NAME": "843-1B - 0+00"
    },
    "facilityName": "STATION 843 ON 800 PIPELINE SYSTEM"
  },
  "cause": {
    "category": "INCORRECT OPERATION",
    "details": {
      "CAUSE_DETAILS": "OTHER INCORRECT OPERATION",
      "NARRATIVE": "TGP COMPRESSOR STATION 843; OPERATOR WAS ON SITE; EVENT OCCURRED AFTER STATION CAME ON LINE; RELIEF VALVE OPERATED PREMATURELY; RELIEF VALVE DID NOT SEAT; STATION ESD OCCURRED; INVESTIGATION AND REPAIR OF RELIEF VALVE FOUND A SMALL AMOUNT OF SLUDGE IN O-RING OF RELIEF VALVE WHICH MAY HAVE CONTRIBUTED TO THE EVENT; PRESSURE TRANSMITTERS WERE INSPECTED AND FOUND TO BE IN CALIBRATION; RELIEF VALVE WAS TESTED AND CONSISTENTLY LIFTED DURING TESTING;"
    }
  },
  "consequences": {
    "fatalities": 0,
    "injuries": 0,
    "commodity": "NATURAL GAS",
    "release": "3235",
    "propertyDamage": 0,
    "estimatedOperatorCost": 0,
    "estimatedEmergencyCost": 1800,
    "estimatedEnvironmentalCost": null,
    "ignition": "NO",
    "explosion": "NO",
    "evacuated": 0,
    "raw": {
      "FATAL": "0",
      "INJURE": "0",
      "UNINTENTIONAL_RELEASE": "3235",
      "EST_COST_PROP_DAMAGE": "0",
      "PRPTY": "32334"
    }
  },
  "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": 1590,
    "rowSha256": "b5f5f8d1ec91d928d0862afb011dd6f3eb748ea977d75b54f20368ab474c37b5"
  },
  "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": "INCORRECT OPERATION",
      "sevenSubcategory": "OTHER INCORRECT OPERATION",
      "eightCategory": "INCORRECT OPERATION",
      "eightSubcategory": "OTHER INCORRECT OPERATION"
    },
    "costs": {
      "reported": 32334,
      "in1984Dollars": 25646.042783858666,
      "currentYearDollars": 32639.112352554806
    },
    "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": 402,
      "rowSha256": "53d2858ae236f9d02620e09dcdf0828cc81680844d6324b2dd950b5db4e54524"
    }
  },
  "jurisdiction": "US",
  "operatorName": "TENNESSEE GAS PIPELINE COMPANY"
}
```