SOUTHWEST GAS CORP

Incident Narrative

SOUTHWEST GAS WAS NOTIFIED ON APRIL 17, 2019 AT 00:35 PST BY LAS VEGAS ELECTRIC OF A DAMAGE THAT OCCURRED ON A 2-INCH PE SERVICE LINE TO 1175 E. FLAMINGO ROAD LOCATED ON MARYLAND PKWY SOUTH OF FLAMINGO RD IN LAS VEGAS, NV. THE FLOW OF GAS TO THE SECTION OF PIPE WAS TAKEN OUT OF SERVICE BY UTILIZING THE VALVE ISOLATION PLAN WHILE REPAIRS WERE COMPLETED, WHICH RESULTED IN AN OUTAGE OF 664 ACTIVE CUSTOMERS. BASED ON COMMUNICATIONS THAT THE PUBLIC UTILITIES COMMISSION OF NEVADA'S REGULATORY OPERATIONS STAFF HAD WITH THE PIPELINE AND HAZARDOUS MATERIALS SAFETY ADMINISTRATION'S ACCIDENT INVESTIGATION DIVISION, PART A, 4 ""LOCAL TIME AND DATE OF THE INCIDENT"" REFLECTS THE TIME SOUTHWEST GAS WAS NOTIFIED OF A DAMAGE ON THE PIPELINE. AT THE TIME, NO INCIDENT REPORTING CRITERIA WAS MET. PART A, 6: SOUTHWEST GAS NOTIFIED THE NATIONAL RESPONSE CENTER (NRC) TELEPHONICALLY OF THE INCIDENT ON APRIL 18, 2019 AT 08:51 PST, DUE TO INCREASING COSTS ASSOCIATED WITH THE REPAIR AND RELIGHT ACTIVITIES, THAT WOULD POSSIBLY MEET THE $50,000 REPORTING CRITERIA. THE NRC ISSUED REPORT NUMBER 1243087 FOR THE INCIDENT. SOUTHWEST GAS PROVIDED A 48-HOUR UPDATE TELEPHONICALLY TO THE NRC ON APRIL 19, 2019 AT 14:14 PST. THE NRC ISSUED REPORT NUMBER 1243222 FOR THE UPDATED REPORT.