TARGA RESOURCES OPERATING LP — Gas transmission and gathering — incident on 2012-09-04

Gas transmission and gathering incident in ELDORADO, SCHLEICHER County, TX. Reported cause: CORROSION FAILURE. Reported consequences: 0 fatalities, 0 injuries, 7814 NATURAL GAS released, $2,000 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: 20120099.

Operator ID: 32296.

Reported incident date: 9/4/2012 12:22.

Location detail: 05378

Cause detail: EXTERNAL CORROSION

Cause detail: INTEGRITY PRESSURE TESTING IN ACCORDANCE WITH TEXAS TITLE 16, CHAPTER 8, SUBCHAPTER B WAS BEING CONDUCTED ON 9/4/12. THE PRESSURE TEST ON THE PIPELINE WAS TO BE AT 1152 FOR 8 HRS. AS THE PIPELINE WAS BEING PRESSURED UP, A RUPTURE OF THE LINE OCCURRED AT APPROXIMATELY 952 PSIG ON THE PIPELINE. THE CAUSE OF THE RUPTURE WAS DUE TO EXTERNAL CORROSION ON THE PIPELINE. WHEN THE PIPELINE WAS RUPTURED, PERSONNELL WERE IN THE AREA TO ISOLATE VALVES. IT WAS DETERMINED 7,814 MCF WAS LOS IN THE BLOWOUT.

PHMSA trend classification: not significant, not serious.

PHMSA standardized cause: CORROSION — EXTERNAL.

PHMSA indexed costs: $31,500 reported total cost, $24,917.719 in 1984 dollars, $33,521.939 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.