CONSUMERS ENERGY CO

Incident Narrative

ON MARCH 9, 2019 AT APPROXIMATELY 11:58 HOURS CONSUMERS ENERGY WAS NOTIFIED OF AN ODOR OF GAS BY THE PROPERTY OWNER AT 712 PARKDALE AVENUE, ROCHESTER (OAKLAND COUNTY) MICHIGAN. A GAS SERVICE WORKER (GSW) ARRIVED AT THE PROPERTY AT APPROXIMATELY 12:33 HOURS AND BEGAN PERFORMING A LEAK INVESTIGATION. READINGS WERE DISCOVERED (1.5% LEL) INSIDE THE HOME AT OR NEAR THE FLOOR DRAIN. THE GSW EXPANDED THE LEAK INVESTIGATION AND DISCOVERED 30% GAS READS AT THE SEWER. THE GSW REQUESTED ADDITIONAL ASSISTANCE AND CONTINUED THE INVESTIGATION TO IDENTIFY THE SOURCE OF GAS. ADDITIONAL RESOURCES ARRIVED TO ASSIST WITH INVESTIGATING NEARBY HOMES AND SEWERS. INITIAL READS DISCOVERED DURING THE LEAK INVESTIGATION WERE AS FOLLOWS: 712 PARKDALE, 615 PARKDALE AND 815 MILLER HAD LOW READS RANGING FROM 0.5% TO 1.5% LEL. 702 PARKDALE HAD 30% LEL AND 703 PARKDALE HAD 9% LEL IN THE HOME. PER PROCEDURES, BOTH 702 AND 703 WERE EVACUATED AND DISPATCH NOTIFIED LOCAL UTILITY TO DE-ENERGIZE 702 AND 703 PARKDALE. OUTSIDE GAS READS WERE ALSO DISCOVERED AT THE WALL OF BOTH 702 PARKDALE AVE. (90%) AND 703 PARKDALE AVE. (100%). CONSUMERS ENERGY EMPLOYEES CONTINUED TO PERFORM LEAK PINPOINTING AND CONTINUOUS MONITORING OF THE LOCATION UNTIL THE SOURCE OF GAS WAS IDENTIFIED. THE SOURCE OF GAS WAS DISCOVERED ON MARCH 10, 2019 AT APPROXIMATELY 21:45 HOURS AND WAS DETERMINED TO BE A CORROSION LEAK ON A 6"" STEEL END CAP AT THE INTERSECTION OF PARKDALE AVENUE AND MILLER AVENUE. THE LEAK WAS CONTAINED BY INSTALLING A TEMPORARY PLUG AND CE EMPLOYEES REMAINED ON SITE TO MONITOR UNTIL A PERMANENT REPAIR WAS COMPLETED THE END CAP WAS REPLACED ON MARCH 11, 2019 AT APPROXIMATELY 12:00 HOURS AND SERVICE WAS RESTORED TO 702 AND 703 PARKDALE AVENUE AT APPROXIMATELY 16:00 HOURS. GAS SERVICE CONTINUED TO MONITOR THE AREA UNTIL GAS READS IN THE HOUSES, OUTSIDE AERATION SPOTS AND SEWER MAINTAINED ZERO ON MARCH 14, 2019 AT APPROXIMATELY 15:07 HOURS.