MPLX LP

hazardous_liquid Incident — — February 26, 2024

Incident Information

Incident DateFebruary 26, 2024
OperatorMPLX LP
CommodityHVL OR OTHER FLAMMABLE OR TOXIC FLUID WHICH IS A GAS AT AMBI
Pipeline Typehazardous_liquid

Location

State
Coordinates39.96042, -80.52006

Cause

CauseMATERIAL FAILURE OF PIPE OR WELD
SubcauseORIGINAL MANUFACTURING-RELATED (NOT GIRTH WELD OR OTHER WELDS FORMED IN THE FIELD)

Casualties

Fatalities0
Injuries0

Costs

Property Damage$15,000
Emergency Response$21,000
Other Costs$0

Location Map

Incident Narrative

"DURING THE MORNING SITE CHECKS A COMPANY OPERATOR DISCOVERED A LEAK IN AN ETHANE PUMP PIPELINE HEADER WHICH APPEARED TO BE ORIGINATING FROM A CRACKED WELD IN DISCHARGE 2"" PIPING. THE OPERATOR ACTIVATED THE INTERNAL RESPONSE PROTOCOL AND SHUT-IN 10"" & 12"" PIPELINES FROM SOUTH (SHERWOOD AND MOBLEY FACILITIES) AND ISOLATED THE PUMP STATION. THE PRODUCT WAS FLARED DOWN WITHOUT INCIDENT AND MONITORED BY THE COMPANY ENVIRONMENTAL PROFESSIONALS. THE EVENT DID NOT CAUSE ANY INJURIES OR HAVE AN IMPACT ON THE PUBLIC. MAINTAINED CONTACT WITH BLESSON MATTHEWS WITH PHMSA AND BRAIN GATENS WITH THE WV EPA. REPAIRS WERE MADE WITH FLOW RESTARTING APPROXIMATELY 48 HOURS LATER. AN ANALYSIS OF THE FAILED PART WAS PERFORMED BY PES LABORATORY AND WAS DETERMINED THAT THE FAILURE OCCURRED DUE TO COMPROMISED MATERIAL STRENGTH IN THE WELD ROOT INDICATIVE OF LOW FATIGUE STRENGTH."

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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