SOUTHERN STAR CENTRAL GAS PIPELINE, INC — Gas transmission and gathering — incident on 2014-12-16

Gas transmission and gathering incident in WAKITA, GRANT County, OK. Reported cause: EQUIPMENT FAILURE. Reported consequences: 0 fatalities, 0 injuries, 12500 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: 20150004.

Operator ID: 31711.

Reported incident date: 12/16/2014 10:00.

Location detail: 150/10321+78

Cause detail: MALFUNCTION OF CONTROL/RELIEF EQUIPMENT

Cause detail: AT 10:00 ON 12/16/2014 SSC GAS CONTROL RECEIVED A CALL FROM SSC FIELD OPERATIONS STATING THERE MAY BE AN ISSUE AT THE WAKITA STATION, POSSIBLE ESD. THE FIELD OPERATOR WAS NEAR BY AND GOING TO INVESTIGATE. AT 10:00 SSC GAS CONTROL LOST COMMUNICATIONS WITH WAKITA STATION AND BEGAN CONTACTING THE COMMUNICATIONS DEPARTMENT TO CORRECT THE ISSUE. AT 10:06 SSC GAS CONTROL BEGAN RECEIVING LOW ALARMS FOR THE BLACKWELL/GUYMON, LINE N. AT 10:08 THE LOCAL PSAP AND THE LOCAL OPERATOR WAS NOTIFIED OF THE ALARMS/ISSUE. AT 10:43 OPERATIONS WAS ON SITE AND WORKING ON A MAINLINE VALVE THAT WAS STUCK OPEN LEAVING THE ESD VALVE TO CONTINUE BLOWING MAINLINE GAS PRESSURE. AT 10:56 THE MAINLINE VALVE WAS CLOSED AND THE GAS HAD STOPPED BLOWING.

PHMSA trend classification: not significant, not serious.

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

PHMSA indexed costs: $45,463 reported total cost, $31,283.971 in 1984 dollars, $38,975.888 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.