# EQT MIDSTREAM — Gas transmission and gathering — incident on 2014-11-19

- **operation:** document
- **citation:** PHMSA Report 20140144
- **title:** EQT MIDSTREAM — Gas transmission and gathering — incident on 2014-11-19
- **source type:** incident
- **agency:** Pipeline and Hazardous Materials Safety Administration
- **status:** historical
- **official:** true
- **published on:** 2014-12-18
- **effective on:** 2014-11-19
- **summary:** Gas transmission and gathering incident in BRIDGEPORT, TAYLOR County, WV. Reported cause: EQUIPMENT FAILURE. Reported consequences: 0 fatalities, 0 injuries, 5000 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.
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**body:**

Gas transmission and gathering incident in BRIDGEPORT, TAYLOR County, WV. Reported cause: EQUIPMENT FAILURE. Reported consequences: 0 fatalities, 0 injuries, 5000 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: 20140144.

Operator ID: 31604.

Reported incident date: 11/19/2014 1:30.

Location detail: 0+00 GSF608

Cause detail: MALFUNCTION OF CONTROL/RELIEF EQUIPMENT

Cause detail: AT APPROXIMATELY 1:30 AM NOVEMBER 19, 2014 THE EQT CALL CENTER RECEIVED A CALL FROM A MEMBER OF THE PUBLIC ABOUT NOISE AT COMET COMPRESSOR STATION. THE CALL CENTER CONTACTED OPERATIONS PERSONNEL TO RESPOND AND OPERATIONS PERSONNEL ARRIVED AT APPROXIMATELY 2:10 AM TO FIND THE ESD HAD ACTIVATED, AN ESD VALVE HAD NOT CLOSED AND GAS WAS VENTING AT THE STATION SITE. GAS CONTROL ALSO CONTACTED OPERATIONS AND WERE NOTIFIED PERSONNEL WERE IN ROUTE. THE APPLICABLE VALVES WERE SHUT WHICH STOPPED THE VENTING. ONCE CALCULATIONS WERE COMPLETED IT WAS DETERMINED THE GAS LOSS WAS GREATER THAN THE 3 MMCF FOR REPORTING. THE INITIAL ESD WAS DETERMINED TO BE CAUSED BY A BAD GAS DETECTOR SENSOR WHICH WAS REPLACED. IT APPEARS THE VALVE DID NOT CLOSE DUE TO MOISTURE IN THE SUPPLY GAS LINE CAUSING FREEZE OFF.

PHMSA trend classification: not significant, not serious.

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

PHMSA indexed costs: $22,250 reported total cost, $15,354.986 in 1984 dollars, $18,978.907 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.
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