ONEOK GAS TRANSPORTATION, LLC — Gas transmission and gathering — incident on 2015-03-16

Gas transmission and gathering incident in Not Within a Municipality, LINCOLN County, OK. Reported cause: EXCAVATION DAMAGE. Reported consequences: 0 fatalities, 0 injuries, 201 NATURAL GAS released, $45,000 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: 20150049.

Operator ID: 31286.

Reported incident date: 3/16/2015 16:58.

Location detail: 35.5184 -096.

Cause detail: EXCAVATION DAMAGE BY THIRD PARTY

Cause detail: NOTIFICATION ISSUE

Cause detail: NO NOTIFICATION MADE TO THE ONE-CALL CENTER/811

Cause detail: ON 03-16-2015 AT 1618 GAS CONTROL RECEIVED A CALL ON EMERGENCY LINE FROM THIRD PARTY STATING THAT A CONTRACTOR HAD STRUCK A GAS LINE THAT COULD BELONG TO OGT NEAR HWY 62 AND CR3500 INTERSECTION, LINCOLN COUNTY, OK. CONTROLLER DETERMINED ONEOK GAS TRANSPORTATION (OGT) A1300 24" PIPELINE WAS WITHIN 1/2 MILE OF THE REPORTED LOCATION; THE CONTROLLER COULD NOT SEE AN INCREASE IN FLOW RATE AT PURCELL JUNCTION (DOWNSTREAM OF LINE STRIKE). CONTROLLER DISPATCHED OGT OPERATIONS PERSONNEL TO LOCATION; PIPELINE OPERATOR ARRIVED ON SITE AT 1658 AND CONFIRMED THAT OGT A1300 24" NATURAL GAS PIPELINE HAD BEEN STRUCK BY A THIRD PARTY POLE TRUCK; THERE WERE NO FATALITIES OR INJURIES, THERE WAS GAS ESCAPING BUT HAD NOT IGNITED. PIPELINE OPERATOR CONTACTED 911 AT 1710 TO MAKE THEM AWARE OF THE SITUATION. GAS FLOW INTO A1300 24" WAS CURTAILED WHICH AFFECTED (6) GAS PROCESSING PLANTS. THE PIPELINE WAS ISOLATED AT 1845 ON 03-16-2015. A NEW SECTION OF PIPELINE WAS INSTALLED TO REPAIR DAMAGED SEGMENT AND PIPELINE WAS RESTARTED AT 2009 ON 03-17-2015.

PHMSA trend classification: significant incident, not serious.

PHMSA standardized cause: EXCAVATION DAMAGE — THIRD PARTY EXCAVATION DAMAGE.

PHMSA indexed costs: $91,652 reported total cost, $61,874.405 in 1984 dollars, $109,610.153 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.