ONEOK GAS TRANSPORTATION, LLC — Gas transmission and gathering — incident on 2018-01-18

Gas transmission and gathering incident in NEWCASTLE, MCCLAIN County, OK. Reported cause: CORROSION FAILURE. Reported consequences: 0 fatalities, 0 injuries, 1089 NATURAL GAS released, $78,000 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: 20180027.

Operator ID: 31286.

Reported incident date: 1/18/2018 11:30.

Location detail: MP 21.50

Cause detail: INTERNAL CORROSION

Cause detail: AT 11:30 CST ON 01/18/2018 ONEOK GAS TRANSPORTATION (OGT) PIPELINE OPERATOR RECEIVED A CALL FROM LOCAL DISTRIBUTION COMPANY EMPLOYEE. HE STATED THAT OGT HAD GAS POSSIBLY EMERGING FROM THE GROUND WEST OF PIG BARREL ON A-1100 WEST 16, AT F-JUNCTION, NEAR NEWCASTLE, OK. OGT PIPELINE OPERATOR CONTACTED PIPELINE CONTROL AND OPERATIONS PERSONNEL WERE IMMEDIATELY DISPATCHED TO LOCATION. LEAK WAS VERIFIED AND OGT NOTIFIED OKLAHOMA CORPORATION COMMISSION. NO RESIDENCES, STRUCTURES OR PUBLIC SPACES WERE IMPACTED BY THE NATURAL GAS. THE PIPELINE PRESSURE WAS LOWERED FROM 667 PSIG TO 532 PSIG AND CONTINUED TO FEED CUSTOMERS. OGT OPERATIONS PERSONNEL STARTED EXCAVATING FOR THE REPAIR ON 01/18/2018. THE SITE WAS EXCAVATED AND A PIPELINE DRIP (LEAK LOCATION) WAS REMOVED AND A NEW SECTION OF PIPE WAS INSTALLED. THE PIPELINE WAS RETURNED TO REGULAR SERVICE ON 01/20/2018.

PHMSA trend classification: not significant, not serious.

PHMSA standardized cause: CORROSION — INTERNAL.

PHMSA indexed costs: $91,000 reported total cost, $44,838.059 in 1984 dollars, $106,963.025 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.