NATURAL GAS PIPELINE CO OF AMERICA (KMI) — Gas transmission and gathering — incident on 2013-10-22

Gas transmission and gathering incident in FALFURRIAS, JIM WELLS County, TX. Reported cause: EQUIPMENT FAILURE. Reported consequences: 0 fatalities, 0 injuries, 8913 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: 20130101.

Operator ID: 13120.

Reported incident date: 10/22/2013 20:30.

Cause detail: MALFUNCTION OF CONTROL/RELIEF EQUIPMENT

Cause detail: INDICATION OF VENTING RELIEF VALVE REPORTED TO NGPL BY A THIRD PARTY PIPELINE OPERATOR WITH PIPELINE FACILITIES CONNECTED TO THE NGPL FACILITIES AT APPROXIMATELY 7:58 PM ON 10/22/2013 AT WHICH TIME THEY CLOSED THEIR ISOLATION VALVE TO THE NGPL FACILITY. AN NGPL TECHNICIAN WAS CALLED OUT AND ARRIVED AT THE DCP LA GLORIA STATION AT APPROXIMATELY 8:30 PM, CONFIRMED THAT IT WAS THE NGPL RELIEF VALVE THAT WAS VENTING AND COMPLETED THE ISOLATION OF THE PIPING TO THE RELIEF VALVE. THE STATION REMAINED OUT OF SERVICE UNTIL THE RELIEF VALVE COULD BE MADE FUNCTIONAL BY REMOVAL OF THE LIQUIDS IN THE PILOT OPERATOR AND WAS RETURNED TO SERVICE AT APPROXIMATELY 1:45 PM ON 10/23/2013. THE RELIEF VALVE PILOT GAS PIPING WAS MODIFIED WITH THE INSTALLATION OF A LIQUID FILTER TO PREVENT A RECURRENCE OF THIS EVENT SINCE THE VALVE DID NOT RESET OR CLOSE WHEN THE INLET PRESSURE DROPPED BELOW THE VALVE SET POINT.

PHMSA trend classification: not significant, not serious.

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

PHMSA indexed costs: $33,149 reported total cost, $26,831.67 in 1984 dollars, $32,945.215 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.