ATLANTA GAS LIGHT CO

Incident Narrative

THE COMPANY INITIALLY RECEIVED A NATURAL GAS OUTAGE CALL AT 2421 EAGLE DRIVE, AUGUSTA GA WHERE UPON AN INVESTIGATION IT WAS DETERMINED THAT WATER WAS ENTERING THE NATURAL GAS SYSTEM. UPON INVESTIGATING FURTHER, IT APPEARS AN ELECTRICAL CHARGE ENTERED ONTO THE STEEL GAS PIPING AND STEEL WATER PIPING AS A RESULT OF A VEHICLE RUNNING INTO A UTILITY POLE AT 2401 EAGLE DRIVE. THE CURRENT APPEARS TO HAVE ENTERED ONTO THE GAS PIPING FROM THE HOUSE ACROSS THE STREET (3001 EAGLE DRIVE) FROM THE UTILITY POLE ACCIDENT AS THE UNION AT THE METER SET HAD A HOLE BURNED INTO IT. ADDITIONAL INVESTIGATION REVEALED THAT ELECTRICIANS AND PLUMBERS WERE ADDRESSING AN ELECTRICAL OUTAGE AND WATER PIPE LEAKS UNDER THE SAME ADDRESS AS IT APPEARS A LARGE AMOUNT OF CURRENT MAY HAVE TRAVELED THROUGH THE STRUCTURE. FOUR HOUSES DOWN FROM THE UTILITY POLE ACCIDENT (3010 EAGLE DRIVE) THE STEEL NATURAL GAS SERVICE PIPE WAS IN DIRECT CONTACT WITH THE STEEL WATER SERVICE PIPE TO SAME PROPERTY. THE ELECTRICAL CHARGE CAUSED THE TWO (2) PIPES TO FUSE TOGETHER CAUSING A LEAK IN BOTH RESULTING IN 60 PSIG WATER ENTERING THE 40 PSIG GAS SYSTEM AT THAT POINT. APPROXIMATELY 7,000 FEET OF NATURAL GAS MAIN WAS ISOLATED WITH ASSOCIATED SERVICES IN ORDER FOR THE WATER BE EXTRACTED FROM THE NATURAL GAS SYSTEM. APPROXIMATELY 139 NATURAL GAS METER SETS WERE AFFECTED DUE TO WATER ENTERING THE NATURAL GAS PIPING SYSTEM. DUE TO THE LENGTH OF TIME PERFORMING THE INVESTIGATION AND REPAIRS IT WAS DETERMINED THAT COSTS WOULD EXCEED THE $50,000 THRESHOLD FOR REPORTING WHERE THE NATIONAL RESPONSE CENTER (NRC) WAS CONTACTED AT THAT TIME. ADDITIONAL NRC REPORT NUMBER 1262686 WAS CREATED FOR THE SAME EVENT AFTER A SUPPLEMENTAL CALL WAS PLACED WITH THE NRC TO UPDATE THE INITIAL TELEPHONIC NOTICE.