HOLLY ENERGY PARTNERS - OPERATING, L.P.

Incident Narrative

ON JANUARY 26 AT APPX. 21:26 CST, AN H2S ALARM AT BAUMGART STATION WAS RECEIVED BY THE HEP CONTROL CENTER. PER PROCEDURE, THE HEP CONTROLLER IMMEDIATELY SHUTDOWN THE IMPACTED PUMPS AND PIPELINES AND NOTIFIED AREA PERSONNEL TO GO ON-SITE. AT APPX. 22:20 CST, A HEP TECH ARRIVED ON-SITE AND DID IDENTIFY THAT THE SOIL SURROUNDING A PUMP AT THE STATION WAS SATURATED. PER PROCEDURE, THE TECH IMMEDIATELY PERFORMED A SPILL CALCULATION TO DETERMINE AN ESTIMATED QUANTITY OF THE RELEASED PRODUCT. AT APPX. 22:51 CST, THE TECH DETERMINED THAT APPX. 3 BBLS. OF CRUDE OIL HAD BEEN RELEASED. HE SUBSEQUENTLY NOTIFIED HIS IMMEDIATE SUPERVISOR AND THE CONTROL CENTER. THE HEP REGULATORY GROUP WAS THEN NOTIFIED AT APPX. THE SAME TIME SINCE IT WAS RECOGNIZED THAT THE RELEASE HAD MET 195.50 REPORTING CRITERIA. THE HEP REGULATORY GROUP THEN MADE SUBSEQUENT NOTIFICATIONS TO THE NRC AND TXRRC (APPX. 23:49 CST). THE APPARENT CAUSE OF THIS INCIDENT WAS DUE TO A SEAL PACKING FAILURE. MORE SPECIFICALLY, IT WAS FOUND THAT THE PACKING NUT ON THE STUFFING BOX FAILED. THE ENTIRE PUMP HAS ALREADY BEEN REPLACED. *A NOTE, THIS REPORT HAS BEEN COMPLETED (WHERE POSSIBLE) ADDRESSING SPECIFICATIONS AND OPERATIONS OF THE PUMP WHERE THE POINT OF RELEASE OCCURRED. AS SUCH, CERTAIN INFORMATION, SUCH AS PART E, MAOP DETERMINATION, HAS BEEN COMPLETED TO THE EXTENT THE FORM WOULD ACCEPT THIS INFORMATION. THIS INFORMATION IS ACTUALLY UNKNOWN SINCE RELATED TO A PUMP. * *UPDATED ESTIMATED PRESSURE AT TIME OF RELEASE AND MOP PER UPDATES FROM IMP AS OF 3/2022 UPDATE* *UPDATED GPS COORDINATES AND COUNTY INFORMATION, AS OF 3/31/2022*