# GUARDIAN PIPELINE, LLC — Gas transmission and gathering — incident on 2017-12-31

**Citation:** PHMSA Report 20180019  
**Type / status:** incident / historical  
**Agency:** Pipeline and Hazardous Materials Safety Administration  
**Effective:** 2017-12-31  
**Published:** 2018-01-26

Gas transmission and gathering incident in CHANNAHON, WILL County, IL. Reported cause: EQUIPMENT FAILURE. Reported consequences: 0 fatalities, 0 injuries, 26600 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: significant incident, not serious.

## Document text

Gas transmission and gathering incident in CHANNAHON, WILL County, IL. Reported cause: EQUIPMENT FAILURE. Reported consequences: 0 fatalities, 0 injuries, 26600 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: 20180019.

Operator ID: 31712.

Reported incident date: 12/31/2017 20:47.

Location detail: 0.00

Cause detail: MALFUNCTION OF CONTROL/RELIEF EQUIPMENT

Cause detail: AT APPROXIMATELY 20:46 ON DECEMBER 31, 2017, THE GUARDIAN PIPELINE GAS CONTROLLER ON DUTY IDENTIFIED A POSSIBLE ISSUE.. THE ONEOK FIELD REPRESENTATIVE WAS CONTACTED AND ARRIVED AT THE JOLIET STATION AT APPROXIMATELY 21:47 AT WHICH TIME GAS WAS FOUND BLOWING FROM THE BLOW DOWN ON THE UNIT #1 COMPRESSOR. GAS CONTROL WAS CONTACTED AND THE COMPRESSOR UNIT WAS SHUT DOWN. THE FIELD REPRESENTATIVE LOCATED A FROST BALL ON ONE OF THE SUPPLY FITTINGS, THAWED THE SUPPLY LINE, RETIGHTENED THE FITTING, AND THE VALVE CLOSED. UNIT 1 WAS THEN RETURNED TO NORMAL SERVICE.

PHMSA trend classification: significant incident, not serious.

PHMSA standardized cause: EQUIPMENT FAILURE — MALFUNCTION OF CONTROL/RELIEF EQUIPMENT.

PHMSA indexed costs: $100,300 reported total cost, $95,098.568 in 1984 dollars, $116,947.68 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: `4d52e6e8510a0479b9abad7fa93b87d240e97e1c6c171faeaffd01d2555817f6`
- Retrieved: 2026-08-20T03:30:32.010Z
- Exported: 2026-08-24T06:14:33.809Z
- Document slug: `phmsa-incident-a542037e5e2f71a723617be9`

### Source metadata

```json
{
  "recordKind": "pipeline_incident",
  "datasetType": "gas_transmission_gathering",
  "datasetLabel": "Gas transmission and gathering",
  "datasetPeriod": "January 2010 to present",
  "report": {
    "number": "20180019",
    "supplementalNumber": "17590",
    "type": "SUPPLEMENTAL FINAL",
    "receivedDate": "2018-01-26",
    "receivedDateRaw": "1/26/2018"
  },
  "operator": {
    "id": "31712",
    "name": "GUARDIAN PIPELINE, LLC"
  },
  "incident": {
    "date": "2017-12-31",
    "dateRaw": "12/31/2017 20:47"
  },
  "location": {
    "city": "CHANNAHON",
    "county": "WILL",
    "state": "IL",
    "postalCode": "60410",
    "latitude": 41.450287,
    "longitude": -88.183464,
    "type": "OPERATOR-CONTROLLED PROPERTY",
    "details": {
      "DESIGNATED_NAME": "0.00"
    },
    "facilityName": "JOLIET COMPRESSOR STATION"
  },
  "cause": {
    "category": "EQUIPMENT FAILURE",
    "details": {
      "CAUSE_DETAILS": "MALFUNCTION OF CONTROL/RELIEF EQUIPMENT",
      "NARRATIVE": "AT APPROXIMATELY 20:46 ON DECEMBER 31, 2017, THE GUARDIAN PIPELINE GAS CONTROLLER ON DUTY IDENTIFIED A POSSIBLE ISSUE.. THE ONEOK FIELD REPRESENTATIVE WAS CONTACTED AND ARRIVED AT THE JOLIET STATION AT APPROXIMATELY 21:47 AT WHICH TIME GAS WAS FOUND BLOWING FROM THE BLOW DOWN ON THE UNIT #1 COMPRESSOR. GAS CONTROL WAS CONTACTED AND THE COMPRESSOR UNIT WAS SHUT DOWN. THE FIELD REPRESENTATIVE LOCATED A FROST BALL ON ONE OF THE SUPPLY FITTINGS, THAWED THE SUPPLY LINE, RETIGHTENED THE FITTING, AND THE VALVE CLOSED. UNIT 1 WAS THEN RETURNED TO NORMAL SERVICE."
    }
  },
  "consequences": {
    "fatalities": 0,
    "injuries": 0,
    "commodity": "NATURAL GAS",
    "release": "26600",
    "propertyDamage": 0,
    "estimatedOperatorCost": 0,
    "estimatedEmergencyCost": 300,
    "estimatedEnvironmentalCost": null,
    "ignition": "NO",
    "explosion": "NO",
    "evacuated": 0,
    "raw": {
      "FATAL": "0",
      "INJURE": "0",
      "UNINTENTIONAL_RELEASE": "26600",
      "EST_COST_PROP_DAMAGE": "0",
      "PRPTY": "100300"
    }
  },
  "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": 1013,
    "rowSha256": "8167abe29feb4c4540d8f90a1e1bf57c8f6597499a955b1de82a33e1fe1fc24e"
  },
  "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": "MATERIAL/WELD/EQUIP FAILURE",
      "sevenSubcategory": "MALFUNCTION OF CONTROL/RELIEF EQUIPMENT",
      "eightCategory": "EQUIPMENT FAILURE",
      "eightSubcategory": "MALFUNCTION OF CONTROL/RELIEF EQUIPMENT"
    },
    "costs": {
      "reported": 100300,
      "in1984Dollars": 95098.568088524,
      "currentYearDollars": 116947.67999286097
    },
    "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": 986,
      "rowSha256": "0ede3d80573a1a3cf3714890ab684311fd2307086887361e5009a71b236e5d93"
    }
  },
  "jurisdiction": "US",
  "operatorName": "GUARDIAN PIPELINE, LLC"
}
```