MEDALLION OPERATING COMPANY, LLC

Incident Narrative

ON JAN 31ST, 2018 AT APPROXIMATELY 23.10, LOCAL OPERATIONS PERSONNEL DISCOVERED A SEAL ON BOOSTER PUMP P-1410 HAD FAILED. THE OPERATOR IMMEDIATELY NOTIFIED THE CONTROL ROOM AND THE PUMP WAS ISOLATED AND SHUT DOWN (23.15). THE REST OF THE STATION REMAINED IN OPERATION, BY USE OF A PARALLEL PUMP. AFTER IMMEDIATE RESPONSE ACTIONS WHERE TAKE TO SHUT DOWN THE PUMP AND THE SITE WAS DETERMINED TO BE SAFE, OPERATION PERSONNEL THEN NOTIFIED EHS (00.40 2/1/18). TELEPHONE NOTIFICATIONS WERE THEN MADE TO NRC AND TEXAS RAILROAD COMMISSION. A CONTRACT ENVIRONMENTAL RESPONSE CREW WAS DISPATCHED TO COLLECT FREE STANDING CRUDE OIL AND CONTAMINATED SOIL. AFTER EVALUATING THE SITE IT WAS DETERMINED THAT APPROXIMATELY 3 BARRELS OF CRUDE OIL WAS RELEASED AND ALL REMAINED ONSITE. THE RELEASED CRUDE OIL WAS RECOVERED EITHER BY VACUUM TRUCK OR WITHIN THE SOIL FOR REMEDIATION. SOIL REMEDIATION ACTIVITIES HAVE BEEN CONCLUDED. THE SEAL WAS REPLACED AND THE PUMP WAS RETURNED TO SERVICE 2/1/2018. DURING THE INVESTIGATION OF THE ACCIDENT IT WAS DISCOVERED THAT THE SEAL HAD BEEN FOUND LEAKING ON 1/31/2018 EARLIER IN THE DAY AND WAS PLANNED FOR REPAIR THE FOLLOWING DAY. THE SEAL FAILED OVERNIGHT BEFORE THE PLANNED REPAIRS COULD BE MADE. A TREND OF THE PRESSURE ON THE PUMP AND SEAL BEFORE, DURING AND AFTER THE ACCIDENT INDICATED A PRESSURE RANGE OF 50-110 PSIG, BELOW THE MOP OF 285 PSIG. AS A MEAN TO PREVENT FUTURE OCCURRENCES SIMILAR TO THIS ONE, PUMP P-1410 WILL RECEIVE A ""PLAN 65"" SEAL KIT WITHIN 150 DAYS OF THIS REPORT. THE ""PLAN 65"" SEAL KIT WILL PROVIDE REMOTE SHUTDOWN OF THE PUMP IF A SEAL LEAK IS DETECTED. IN ADDITION THROUGH THE USE OF A RISK-BASED APPROACH, MEDALLION IS EVALUATING THE ENTIRE PIPELINE SYSTEM TO DETERMINE WHICH ADDITIONAL PUMPS AND ON WHAT SCHEDULE THE ""PLAN 65"" SEAL KITS WILL BE INSTALLED.