PUBLIC SERVICE CO OF NORTH CAROLINA

Incident Narrative

AT 12:09PM, PSNC ENERGY'S CENTRAL DISPATCH RECEIVED A CALL FROM DURHAM COUNTY 911 OF A DAMAGED GAS LINE ON S ALSTON AVE, DURHAM, NC. PSNC ENERGY FIRST RESPONDER ARRIVED ON SCENE AT 12:15PM. FIRE DEPARTMENT WAS ON SCENE WHEN PSNC ENERGY FIRST RESPONDER ARRIVED. FRED SMITH COMPANY WAS DOING ROAD WORK FOR NCDOT AT A CREEK CROSSING. ROAD AT CREEK CROSSING HAD BEEN CLOSED FOR SEVERAL MONTHS. WHILE DIGGING IN THE CREEK, FRED SMITH COMPANY'S EXCAVATION EQUIPMENT HIT THE 4"" STEEL NATURAL GAS MAIN AND CAUSED GAS TO ESCAPE. GAS LINE LOCATING MARKS WERE VISIBLE AND ACCURATE ON THE JOB SITE. GENERAL MANAGER - OPERATIONS AND MAINTENANCE NOTIFIED NCUC PIPELINE SAFETY DIRECTOR BY PHONE AT 2:58PM DUE TO PROJECTED REPAIR COSTS GREATER THAN $50,000. NATIONAL RESPONSE CENTER (REPORT ID 1230829) WAS NOTIFIED AT 3:13PM DUE TO PROJECTED REPAIR COSTS GREATER THAN $50,000. PSNC ENERGY CREWS RAN APPROXIMATELY 530 FEET OF ABOVE GROUND TEMPORARY 2 INCH PLASTIC MAIN ON RIDDLE RD AS A BYPASS TO MAINTAIN SERVICE TO NATURAL GAS CUSTOMERS. AT 9:07PM THIS BYPASS WAS TIED IN. PSNC ENERGY CREWS STOPPED GAS BLOWING BY CLOSING A VALVE INSTALLED ON ONE SIDE OF THE CREEK AND INSTALLING A STOPPER FITTING ON THE OTHER SIDE. GAS STOPPED BLOWING AT 11:15PM. NATURAL GAS SERVICE CONTINUED TO 2 RESIDENTIAL CUSTOMERS AT 1618 AND 1622 ALSTON AVE DOWNSTREAM OF THE STOPPER FITTING BY RUNNING AN ABOVE GROUND TEMPORARY SERVICE LINE. ON 11/20/2018 AND 11/21/2018, PSNC ENERGY CONTRACTOR INSTALLED APPROXIMATELY 530 FT OF 4 INCH UNDERGROUND PLASTIC MAIN ALONG RIDDLE RD AS A PERMANENT FIX TO THE DAMAGED LINE. THE GAS MAIN AT THE CREEK CROSSING WILL BE ABANDONED UNTIL AFTER ROAD WORK IS COMPLETE. ALSO ON THESE DATES PSNC ENERGY CREWS INSTALLED 250 FEET OF 2"" PLASTIC MAIN AND A NEW SERVICE LINE AS A PERMANENT REPAIR TO SERVE NATURAL GAS TO 1618 AND 1622 ALSTON AVE.