KINDER MORGAN TEJAS PIPELINE — Gas transmission and gathering — incident on 2016-06-03

Gas transmission and gathering incident in Not Within a Municipality, ZAPATA COUNTY County, TX. Reported cause: EQUIPMENT FAILURE. Reported consequences: 0 fatalities, 0 injuries, 9585 NATURAL GAS released, $100 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: 20160053.

Operator ID: 4900.

Reported incident date: 6/3/2016 7:00.

Location detail: 26+14

Cause detail: MALFUNCTION OF CONTROL/RELIEF EQUIPMENT

Cause detail: 06/02/2016 10:23 AM ZAPATA FIRE DEPARTMENT CALLED KINDER MORGAN; NO LEAK AND NO VENTING FOUND BY KINDER MORGAN OPERATIONS SPECIALIST INVESTIGATING THE CALL; THERE ARE OTHER PIPELINE COMPANIES WITH FACILITIES IN THE AREA. 06/03/2016 12:50 AM SHERIFF DEPARTMENT CALLED KINDER MORGAN; NO LEAK AND NO VENTING FOUND BY KINDER MORGAN OPERATIONS SPECIALIST INVESTIGATING THE CALL. 06:45 AM KINDER MORGAN CONTRACTOR IN THE VICINITY REPORTED NOISE, POSSIBLE RELIEF VALVE ACTION. 07:00 AM KINDER MORGAN OPERATIONS SPECIALIST ARRIVED ON SITE, CONFIRMED RELIEF VALVE VENTING PREMATURELY BELOW MAOP; AFTER SAFELY VERIFYING PRESSURE, OPERATIONS SPECIALIST BEGAN CLOSING ISOLATION VALVE LOCATED BENEATH SAID RELIEF VALVE. 07:25 AM THE ISOLATION VALVE WAS FULLY CLOSED AND RELIEF VALVE VENTING WAS TERMINATED. PIPELINE SYSTEM PRESSURE WAS MONITORED. MAOP WAS NOT EXCEEDED. INVESTIGATION BY KINDER MORGAN OPERATION SPECIALIST FOUND THE RELIEF VALVE SET POINT HAD DRIFTED TO 1,003 PSIG ALLOWING THE PREMATURE VENTING TO OCCUR. THE SET POINT OF THE RELIEF VALVE WAS RESET TO 104% MAOP (1,066 PSIG) ACCORDING TO KINDER MORGAN PROCEDURE. SAID RELIEF VALVE IS A 3X4 ANDERSON GREENWOOD RELIEF VALVE. PIPELINE MAOP = 1,025 PSIG; HIGHEST PIPELINE PRESSURE DURING VENTING WAS 1,003 PSIG.

PHMSA trend classification: not significant, not serious.

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

PHMSA indexed costs: $26,110 reported total cost, $27,685.627 in 1984 dollars, $34,116.623 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.