# ENABLE OKLAHOMA INTRASTATE TRANSMISSION, LLC — Gas transmission and gathering — incident on 2019-02-07

- **operation:** document
- **citation:** PHMSA Report 20190024
- **title:** ENABLE OKLAHOMA INTRASTATE TRANSMISSION, LLC — Gas transmission and gathering — incident on 2019-02-07
- **source type:** incident
- **agency:** Pipeline and Hazardous Materials Safety Administration
- **status:** historical
- **official:** true
- **published on:** 2019-03-04
- **effective on:** 2019-02-07
- **summary:** Gas transmission and gathering incident in CORDELL, WASHITA County, OK. Reported cause: EQUIPMENT FAILURE. Reported consequences: 0 fatalities, 0 injuries, 8884 NATURAL GAS released, $500 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 CORDELL, WASHITA County, OK. Reported cause: EQUIPMENT FAILURE. Reported consequences: 0 fatalities, 0 injuries, 8884 NATURAL GAS released, $500 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: 20190024.

Operator ID: 26330.

Reported incident date: 2/7/2019 5:00.

Location detail: CORDELL

Cause detail: MALFUNCTION OF CONTROL/RELIEF EQUIPMENT

Cause detail: AT 2/7/19 AT 01:00 THE CORDELL COMPRESSOR STATION WAS SHUT DOWN BY SYSTEM CONTROL. WHEN THE STATION SHUT DOWN, A SURGE VALVE FOR THE FUEL GAS LINE HUNG OPEN DUE TO SEVERE ICING. DUE TO THE VALVE NOT CLOSING, NATURAL GAS WAS ALLOWED TO FLOW BY AND SINCE THE STATION WAS SHUT DOWN THIS GAS ESCAPED THROUGH A 2" VENT FOR 7.5 HOURS UNTIL IT WAS DISCOVERED BY AN OPERATOR EMPLOYEE AT 08:30 THE SAME DAY. THE VALVE WAS ISOLATED, DE-ICED, AND PUT BACK INTO SERVICE IMMEDIATELY. GAS LOSS FOR THE EVENT WAS CONFIRMED AT 09:30 AND A CALL WAS PLACED WITH THE NRC AT 10:28 (#1237058). A 48 HOUR FOLLOW UP CALL WAS PROVIDED ON 2/8/19 AT 07:34 (#1237159).

PHMSA trend classification: not significant, not serious.

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

PHMSA indexed costs: $29,182 reported total cost, $29,686.112 in 1984 dollars, $37,028.625 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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