HOLLY ENERGY PARTNERS - OPERATING, L.P.

hazardous_liquid Incident —

Incident Information

Report Date
OperatorHOLLY ENERGY PARTNERS - OPERATING, L.P.
Commodity—
Pipeline Typehazardous_liquid

Location

State
Coordinates32.56357, -99.78831

Cause

CauseEQUIPMENT FAILURE
Subcause—

Casualties

Fatalities0
Injuries0

Costs

Property Damage
Lost Commodity
Public/Private Damage
Emergency Response
Environmental Remediation
Other Costs

Location Map

Incident Narrative

AT 16:10 MT THE HOLLY ENERGY PARTNERS CONTROL CENTER RECEIVED MULTIPLE LEL ALARMS AT HAWLEY STATION. THE CONTROLLER ON DUTY IMMEDIATELY SHUT DOWN AND BLOCKED IN THE PIPELINE AS PER PROCEDURE AND BEGAN REVIEWING ALARM LOGS AND PRESSURE TRENDS. THE CONTROLLER MADE CONTACT WITH FIELD PERSONNEL AND DISPATCHED AN EMPLOYEE TO THE REMOTE PUMPING STATION TO INVESTIGATE FURTHER. ONCE HOLLY ENERGY PARTNERS RESOURCES ARRIVED ON-SITE THEY WERE ABLE TO CONFIRM THAT THERE HAD BEEN A RELEASE FROM THE PIPELINE. UPON FURTHER INVESTIGATION, IT WAS DISCOVERED THAT THE OPENING AND CLOSING CONTACTOR ON MOV 22 AT HAWLEY STATION WENT OUT LEAVING THE VALVE PARTIALLY OPEN CAUSING THE RELIEF VALVE ON UNIT #2 TO RELIEVE WHEN UNIT #1 WAS STARTED. THE PARTIALLY OPEN VALVE CREATED AN OVERPRESSURE SITUATION ON THE RELIEF VALVE ON UNIT #2 WHICH RESULTED IN THE RELEASE.

About This Pipeline Incident

Pipeline incident data is reported to the Pipeline and Hazardous Materials Safety Administration (PHMSA). All significant incidents involving fatalities, injuries, or property damage over $50,000 must be reported.

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