SOUTHERN STAR CENTRAL GAS PIPELINE, INC — Gas transmission and gathering — incident on 2014-05-03

Gas transmission and gathering incident in PETROLIA, ALLEN County, KS. Reported cause: EQUIPMENT FAILURE. Reported consequences: 0 fatalities, 0 injuries, 17115 NATURAL GAS released, $119,000 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: 20140059.

Operator ID: 31711.

Reported incident date: 5/3/2014 11:38.

Cause detail: MALFUNCTION OF CONTROL/RELIEF EQUIPMENT

Cause detail: GAS CONTROL RECEIVED FIRST ALARM AT 11:38 ON 5/3/2014 SHOWING PRESSURE DROPPED 17 PSI IN 1.5 MINUTES AND THEN BEGAN TO SLOWLY CLIMB. A SECOND ALARM CAME IN AT 12:00 THAT SHOWED PRESSURE WAS RAPIDLY DROPPING. A THIRD ALARM CAM IN AT 12:06 WITH PRESSURES TRENDING AT 30 PSI BELOW NORMAL. GAS CONTROL CONTACTED THE MEASUREMENT TECHNICIAN AT 12:15 AND WAS NOTIFIED OF AN ETA OF 90 MINUTES. ON CALL PERSONEL WERE NOTIFIED AT 12:39 WHO IMMEDIATELY CALLED THE CLOSEST OPERATOR. PSAP AND ALLEN COUNTY SHERIFF WERE NOTIFIED AT 12:42. OPERATIONS WERE ON SCENE AT 13:12 AND NOTIFIED GAS CONTROL OF THE RELIEF VALVE BLOWING. THE RELIEF WAS SHUT-IN AND MONITORED AT THIS TIME UNTIL MEASUREMENT COULD ARRIVE TO SERVICE THE RELIEF VALVE. THE RELIEF VALVE WAS REPLACED AND BACK IN SERVICE BY 22:46 ON 5/3/2014.

PHMSA trend classification: significant incident, not serious.

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

PHMSA indexed costs: $195,504 reported total cost, $113,305.838 in 1984 dollars, $213,685.649 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.