GULF SOUTH PIPELINE COMPANY, LLC

Incident Narrative

A CENTERPOINT ENERGY TECHNICIAN REPORTED A MINOR LEAK ON GULF SOUTH PIPELINE'S INDEX 302 (MCCOMB 6"") AT APPROXIMATELY 11:52 AM ON 07/13/21 TO A GULF SOUTH TECHNICIAN IN THE FLOWOOD, MS AREA. GULF SOUTH DISPATCHED TECHNICIANS TO INVESTIGATE LEAK CALL. GULF SOUTH MADE AN EMERGENCY 811 LOCATE CALL AND STARTED EXCAVATION ABOUT 3:00 PM TO DETERMINE IF THE LEAK WAS ON A GULF SOUTH PIPELINE. GULF SOUTH CLOSED MAIN LINE BLOCK VALVE #120085 AT WYNNDALE RD. AND REDUCED GAS SUPPLY PRESSURE BY 20% ON INDEX 302. ONCE THE AREA OF CONCERN WAS EXCAVATED, GULF SOUTH DISCOVERED A LEAK ON A WELD JOINT ON THE SOUTHSIDE OF AN EXISTING WELD OVER THAT WAS PREVIOUSLY INSTALLED ON GSPL INDEX 302 PIPELINE. THE LEAK WAS A PINHOLE LEAK PRODUCING CONTINUOUS BUBBLES ONLY. THE COMBUSTIBLE GAS INDICATOR (CGI) INDICATED 14% GAS ON 100% SCALE. GULF SOUTH INSTALLED A SKINNER BRAND BAND CLAMP ON THE LEAK AT THE WELD JOINT TO STOP THE LEAK THEN TESTED THE SURROUNDING AREA WITH CGI TO ENSURE THERE WAS NO MIGRATION OR OTHER GAS LEAKS IN THE AREA. PERMANENT REPAIR WILL BE MADE BY PIPE REPLACEMENT. ESTIMATE FOR THE PIPE REPLACEMENT EXCEEDS $122,000; A SUPPLEMENTAL INCIDENT REPORT WILL BE REQUIRED. 2/10/22 UPDATE A7 PER PHMSA INSTRUCTION. THE LEAK WAS VERY MINOR AND THE ORIGINAL RESPONSE WAS .001 BUT IT RENDERED AS ""0"" ON THE PDF SO IT HAS BEEN CHANGED TO ""1"" ALTHOUGH IT WAS ACTUALLY LESS THAN 1 MCF. UPDATED B4, TO INDICATE LEAK DID NOT OCCUR WITHIN A MUNICIPALITY. UPDATED REPAIR COST. PIPE REPLACEMENT WAS COMPLETED ON 10/12/21 AND LINE WAS RETURNED TO SERVICE.