# TEXAS GAS TRANSMISSION, LLC — Gas transmission and gathering — incident on 2017-06-29

- **operation:** document
- **citation:** PHMSA Report 20170063
- **title:** TEXAS GAS TRANSMISSION, LLC — Gas transmission and gathering — incident on 2017-06-29
- **source type:** incident
- **agency:** Pipeline and Hazardous Materials Safety Administration
- **status:** historical
- **official:** true
- **published on:** 2017-07-27
- **effective on:** 2017-06-29
- **summary:** Gas transmission and gathering incident in COLUMBIA, CALDWELL County, LA. Reported cause: EQUIPMENT FAILURE. Reported consequences: 0 fatalities, 0 injuries, 26710 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 COLUMBIA, CALDWELL County, LA. Reported cause: EQUIPMENT FAILURE. Reported consequences: 0 fatalities, 0 injuries, 26710 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: 20170063.

Operator ID: 19270.

Reported incident date: 6/29/2017 10:20.

Location detail: 59.4155

Cause detail: MALFUNCTION OF CONTROL/RELIEF EQUIPMENT

Cause detail: A RELIEF VALVE AT THE COLUMBIA COMPRESSOR STATION PREMATURELY ACTIVATED. MAOP OF 810 PSIG WAS EXCEEDED; RECORDED PRESSURE OF 820 PSIG WAS DOCUMENTED. MAOP EXCEEDANCE WAS NOT 110% OR MORE. RELIEF VALVE WAS SET AT 843 PSIG. THE OPERATOR AT THE STATION WORKED WITH CONTROLLER TO SHUT IN THE VALVE. THE RELIEF VALVE WILL BE REMOVED.

PHMSA trend classification: significant incident, not serious.

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

PHMSA indexed costs: $86,540 reported total cost, $82,171.394 in 1984 dollars, $100,893.99 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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