ONEOK NGL PIPELINE, LLC

Incident Narrative

ON TUESDAY, JUNE 16, 2015, AT 5:00 PM ONEOK EMPLOYEE WAS NOTIFIED THE ONEOK NORTH SNYDER TO SNYDER STATION - SCURRY 6"" PIPELINE HAD BEEN STRUCK BY A THIRD PARTY CONTRACTOR CAUSING A RELEASE. THE MORNING OF JUNE 16TH, A ONEOK REPRESENTATIVE HAD BEEN ON SITE AND LOCATED THE PIPELINE, (TEXAS811 ONE-CALL NUMBER 1565965251), AND THE PIPE HAD BEEN EXPOSED VIA HYDRO EXCAVATION. AT THAT TIME THE ONEOK EMPLOYEE ADVISED THE THIRD-PARTY CONTRACTOR THAT NO ADDITIONAL EXCAVATION WAS TO OCCUR ON THE ONEOK EASEMENT UNLESS ONEOK PERSONNEL WERE ON SITE. LATER IN THE DAY, WITHOUT NOTIFYING ONEOK, THE CONTRACTOR BEGAN TO EXCAVATE THE ONEOK PIPELINE AND STRUCK THE LINE UPON STRIKING THE PIPELINE AND CAUSING THE RELEASE THE CONTRACTOR NOTIFIED THE ONEOK FIELD REPRESENTATIVE, WHO IMMEDIATELY NOTIFIED THE ONEOK PIPELINE CONTROL CENTER. THE PIPELINE CONTROL CENTER ACTIVATED EMERGENCY SHUTDOWN DEVICES (ESD) ON THE INLET METERS SUPPLYING THE 6"" PIPELINE ISOLATING THE LINE. THE IMMEDIATE RESPONSE IN ISOLATING THE PIPELINE, PRE-EMPTED LEAK DETECTION ALARM CONFIRMATION. SCURRY COUNTY SHERRIFF AND FIRE DEPARTMENT PERSONNEL WERE NOTIFIED AND ARRIVED ON SITE PRIOR TO ONEOK PERSONNEL, AT WHICH TIME THEY CLOSED LOCAL ROADS (CR 1611) AND EVACUATED TWO NEARBY HOMES, CONTROLLING ACCESS TO THE RELEASE SITE UNTIL ONEOK PERSONNEL ARRIVED ON SITE. THE LINE WAS REPAIRED AND RETURNED TO SERVICE JUNE 20, 2015 AT 2:00 AM.