# COLUMBIA GAS TRANSMISSION, LLC — Gas transmission and gathering — incident on 2019-01-10

- **operation:** document
- **citation:** PHMSA Report 20190008
- **title:** COLUMBIA GAS TRANSMISSION, LLC — Gas transmission and gathering — incident on 2019-01-10
- **source type:** incident
- **agency:** Pipeline and Hazardous Materials Safety Administration
- **status:** historical
- **official:** true
- **published on:** 2019-01-29
- **effective on:** 2019-01-10
- **summary:** Gas transmission and gathering incident in SENECA ROCKS, PENDLETON County, WV. Reported cause: EQUIPMENT FAILURE. Reported consequences: 0 fatalities, 0 injuries, 14230 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.
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**body:**

Gas transmission and gathering incident in SENECA ROCKS, PENDLETON County, WV. Reported cause: EQUIPMENT FAILURE. Reported consequences: 0 fatalities, 0 injuries, 14230 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: 20190008.

Operator ID: 2616.

Reported incident date: 1/10/2019 14:30.

Location detail: 00+00

Cause detail: MALFUNCTION OF CONTROL/RELIEF EQUIPMENT

Cause detail: ON JANUARY 10, 2019, AT 12:59 PM WHILE SETTING UP THE VALVE INDICATION, AN ELECTRICAL SHORT OCCURRED THAT CAUSED A RAPID DEGRADATION OF AN ELECTRICAL FUSE THAT WAS LINKED TO THE ESD SYSTEM. THIS NEW VALVE (NUMBER C7-273) WAS INSTALLED AS PART OF 2018-2019 WBX PROJECT. THE BLOWN FUSE CAUSED THE STATION TO ACTIVATE THE EMERGENCY SHUTDOWN SYSTEM (ESD). AFTER A PROLONGED BLOW DOWN, IT WAS DISCOVERED THAT VALVE 3029(STATION FIRE VALVE) DID NOT OPERATE/CLOSE. A PRELIMINARY INVESTIGATION INDICATED THE VALVE DID NOT CLOSE DUE TO ICE BUILDUP IN THE ACTIVATION SWITCH. BECAUSE VALVE 3029 DID NOT CLOSE DURING THE ESD, AN EXCESSIVE AMOUNT OF GAS WAS EVACUATED. GAS LOSS WAS APPROXIMATELY 14,230 MCF. NO FIRE OR EXPLOSIONS, DEATHS, INJURIES OR EVACUATIONS OCCURRED AS A RESULT OF THE RELEASE. GAS WAS RELEASE THROUGH DESIGNED ESD BLOW-OFF STACKS/PIPES TO THE ATMOSPHERE.

PHMSA trend classification: significant incident, not serious.

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

PHMSA indexed costs: $48,382 reported total cost, $50,159.816 in 1984 dollars, $61,588.635 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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