WOLVERINE PIPELINE CO

Incident Narrative

ON 12/15/21 AT APPROXIMATELY 12:15 AM, WOLVERINE'S (WPLCO) OPERATIONS CONTROL CENTER WAS CONTACTED BY A CITGO TECHNICIAN TO INFORM WPLCO THAT THEY HAD A LEAK ON THEIR (CITGO'S) SITE; THEY LATER INFORMED WPLCO THAT IT COULD BE COMING FROM WPLCO PIPING. CITGO PERSONNEL HAD A VACUUM TRUCK ON SITE AND COMMENCED CLEAN UP EFFORTS IMMEDIATELY. WPLCO WAS PROVIDED A PHOTO OF THE LEAK SITE BY THE LOCAL CITGO RESPONDERS AND CONFIRMED DISCOVERY WITH THE PHOTO AT 12:49 AM LOCAL TIME. SH&E CONTACTED A LOCAL OSRO TO RESPOND WITH EQUIPMENT, AND NRC, IDEM, AND PHMSA WERE NOTIFIED. AT THE TIME, THE SPILL VOLUME WAS ESTIMATED AT 80 BARRELS. LOCAL PERSONNEL ARRIVED ON SITE AND STARTED A SITE ASSESSMENT. IDENTIFIED THE SOURCE OF THE LEAK WAS A BROKEN PIPE NIPPLE ON 1"" EQUALIZER PIPING AROUND VALVE CS11. A WPLCO ELECTRO-MECHANIC REMOVED THE BROKEN NIPPLE FROM THREADOLET AND REMOVED EQUALIZING PIPING. NEW PIPE NIPPLE WAS INSTALLED, AND VALVE AND PIPE PLUG WERE REINSTALLED. PIPE PLUG INSTALLED IN BALL VALVE WHERE EQUALIZER PIPING WAS REMOVED. CLEAN UP EFFORTS WERE CONTINUED WITH VACUUM EXCAVATION TRUCK AND SUPPORTING EQUIPMENT. RECOVERED 950 GALLONS OF PRODUCT IN VAC TRUCK, AS WELL AS 653 GALLONS IN SOIL AND ABSORBENT PADS, FOR A TOTAL VOLUME OF 38.15 BARRELS.