PHILLIPS 66 PIPELINE LLC

hazardous_liquid Incident —

Incident Information

Report Date
OperatorPHILLIPS 66 PIPELINE LLC
Commodity—
Pipeline Typehazardous_liquid

Location

State
Coordinates41.52983, -109.39314

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

THE CAUSE OF THE RELEASE WAS POOR WELD QUALITY ON THE DRAIN LINE WITH A WELD BEAD THAT WAS NOT FULLY CONNECTED AT THE BOTTOM OF THE DRAIN LINE. THE DRAIN LINE MAY HAVE EXPERIENCED PRESSURE DURING THE DECEMBER HYDROTEST OF THE FACILITY PIPING AS COLD WEATHER DURING THIS TIME PERIOD REACHED -20 DEGREES F AND MAY HAVE COMPROMISED THE DRAIN LINE VALVES AND ALLOWED WATER TO ENTER INTO THE DRAIN LINE SYSTEM THAT WAS INSTALLED IN THE LATE 1990'S. REPORT WAS UPDATED DUE TO ERROR IN ORIGINAL REPORT. REPORT NOTED THAT THE LINE WAS ""INTRA"" AND THE LINE IS A INTERSTATE LINE. 2/6/2015 TF REPORT UPDATED BASED ON PHMSA REQUEST ON 7/7/2019 TT. REPORT NOTED THAT FAILURE WAS ASSOCIATED WITH G5 AND SUB-CAUSE CONSTRUCTION, INSTALLATION OR FABRICATION RELATED -OTHER - DRAIN WAS INSTALLED WITH A SOCKET WELD FITTING, BUT WAS NOT WELDED. CHANGED TO G6 AND SUB-CAUSE OF NON-THREADED CONNECTION FAILURE - OTHER - DRAIN WAS INSTALLED WITH A SOCKET WELD FITTING, BUT WAS NOT WELDED - IMPROPER INSTALLATION.

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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