MARATHON PIPE LINE LLC

Incident Narrative

ON JULY 14, 2021 AT APPROXIMATELY 13:45 CST, MARATHON PIPE LINE'S MARTINSVILLE AREA WAS CONTACTED BY A FIELD TILING CONTRACTOR THAT THEY STRUCK THE WABASH 12"" PRODUCTS SYSTEM NEAR GILMAN, IL WITH A WHEEL TILER RESULTING IN A GASOLINE RELEASE. AT 13:46 THE SYSTEM WAS SHUT DOWN BASED ON CPM ALARMS AND THE SEGMENT IMPACTED WAS ISOLATED. LOCAL OPERATIONS ARRIVED ON SITE AT 14:25. THE TILER CONTACTED 911 AND MPL MADE NOTIFICATIONS TO THE NRC AND EPA. NO INJURIES, FIRE, OR EXPLOSION RESULTED FROM THE RELEASE. THE ACCIDENT RESULTED IN AN ESTIMATED 1091 BARRELS OF GASOLINE BEING RELEASED. THE ACCIDENT LOCATION WAS CUT OUT AND REPLACED WITH NEW PIPE AND THE PIPELINE SYSTEM RETURNED TO SERVICE JULY 16, 2021 AT 10:20 CST. AS PART OF THE EMERGENCY RESPONSE, BOOM WAS INSTALLED IMMEDIATELY AFTER OBSERVATION THAT THE RELEASE HAD MIGRATED THROUGH FIELD TILE TO AN UNNAMED DITCH THAT RAN ON THE NORTH AND NORTHEAST SIDES OF THE RELEASE SITE. INDIVIDUALS CHECKED THE UNNAMED DITCH FOR EVIDENCE OF HYDROCARBONS PRIOR TO IDENTIFYING THAT THE HYDROCARBONS HAD MIGRATED THROUGH FIELD TILE. AN UNDERFLOW DAM WAS INSTALLED AT THE UNNAMED DITCH ON THE NORTH AND NORTHEAST SIDES OF THE RELEASE SITE. THE DRAINAGE TILE CONTRACTOR CREATED A BERM TO CONTAIN THE RELEASE AND CRUSHED ONE OF THE DRAINAGE TILES TO PREVENT THE RELEASE FROM MIGRATING. ONE CALL DATA WAS REVIEWED, AND IT WAS DETERMINED THAT THE DRAINAGE TILE CONTRACTOR DID NOT MAKE A ONE CALL PRIOR TO THE WORK COMMENCING. THE DRAINAGE TILE CONTRACTOR HAD MADE ONE CALLS IN THE PAST AS 11 ONE CALLS WERE PLACED BY THE CONTRACTOR FOR WORK WITHIN THE MPL BUFFER ZONES FROM 2018 TO 2020. MONITORING PLANS WERE CREATED FOR FOUR OF THE ONE CALLS AND WORK WAS MONITORED ON-SITE BY MPL OPERATIONS TECHNICIANS. ONE OF THE MPL OPERATIONS TECHNICIANS WHO MONITORED THE WORK WAS CONTACTED BY THE DRAINAGE TILE CONTRACTOR TELLING THE MPL OPERATIONS TECHNICIANS THAT THEY HAD STRUCK THE PIPELINE. PRIOR TO THE INCIDENT OCCURRING, COMMUNICATIONS WERE SENT TO THE LANDOWNER AND DRAINAGE TILE CONTRACTOR IN 2018, 2019, AND 2020. IN 2018, A COMPLIANCE MAILER WAS SENT TO THE TENANT FARMER. IN 2019, THE LANDOWNER WAS INVITED TO THE FARM PROGRESS SHOW (NO RECORD OF ATTENDANCE) AND AN EXCAVATOR COMPLIANCE MAILER WAS SENT TO THE DRAINAGE TILE CONTRACTOR. IN 2020, THE LANDOWNER WAS SENT A COMPLIANCE MAILER AND THE DRAINAGE TILE CONTRACTOR WAS SENT AN EXCAVATOR COMPLIANCE MAILER. PRIOR TO THE RELEASE IN 2021, THE LANDOWNER WAS SENT A ROW SPECIALIST MAILER THAT INCLUDED THE NAME OF THE NEW SPECIALIST FOR THE LAND AND THE TENANT FARMER WAS MAILED A FARM LETTER INDICATING THAT A ONE CALL SHOULD BE MADE AT LEAST THREE WORKING DAYS BEFORE STARTING DRAINAGE TILE WORK. BASED ON PRIOR COMMUNICATIONS WITH THE DRAINAGE TILE CONTRACTOR, IT IS EVIDENT THAT THE DRAINAGE TILE CONTRACTOR IS AWARE OF THE NOTIFICATIONS THAT NEED TO BE MADE PRIOR TO STARTING WORK. AS REQUIRED BY PART A. QUESTION 6. A SECOND NRC REPORT 1310933 WAS SUBMITTED TO SATISFY THE 48 HR. UPDATE REQUIREMENT. UPDATE MADE SEPTEMBER 29, 2021 TO COST AND NARRATIVE. UPDATE MADE OCTOBER 20, 2021 TO THE NARRATIVE TO INCLUDE EXPLANATION FOR EMERGENCY RESPONSE AND ENVIRONMENTAL IMPACT COSTS, AND PUBLIC AWARENESS CONTACTS WITH THE CONTRACTOR AND LANDOWNER. UPDATE MADE MARCH 24, 2022 TO CLARIFY HOW WAS THE ACCIDENT INITIALLY IDENTIFIED FOR THE OPERATOR. ANSWERED ADDITIONAL QUESTIONS ON REV 3-2021 VERSION OF ACCIDENT REPORT FORM NOT PREVIOUSLY ASKED.