WILLIAMS OIL GATHERING, LLC

hazardous_liquid Incident —

Incident Information

Report Date
OperatorWILLIAMS OIL GATHERING, LLC
Commodity—
Pipeline Typehazardous_liquid

Location

State
Coordinates26.35836, -94.51650

Cause

CauseINCORRECT OPERATION
Subcause—

Casualties

Fatalities0
Injuries0

Costs

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

Location Map

Incident Narrative

ON JUNE 5TH, 2024, WILLIAMS OIL GATHERING WAS CONDUCTING DEWATERING/OIL FILLING OF THE WHALE OIL EXPORT PIPELINE SEGMENT NUMBER 20556 (ROW OCS-G29496). DURING THE SEAWATER DISCHARGE PORTION OF THE OPERATION, THE ROV FEED CAPTURED WHAT WAS ASSUMED TO BE AN OILY WATER MIX DISSIPATING UPWARD FROM THE WATER DISCHARGE POINT (AC-730 PLET). AS SOON AS THIS ANOMALY WAS NOTICED, ALL FLOW ON THE PIPELINE CEASED AND AT 21:35 NO SIGNS OF DISCHARGE REMAINED VISIBLE FROM THE ROV. THE FLOW RATE AT THE TIME OF THE ASSUMED OILY WATER DISCHARGE WAS APPROXIMATELY 6.94 BBL/MINUTE, THE DISCHARGE LASTED FROM 21:05 TO 21:16 PLACING THE DISCHARGE TOTAL AT APPROXIMATELY 76.34 BBLS OF ASSUMED OILY WATER (AN UNDETERMINED COMBINATION OF SEAWATER, MONO ETHYLENE GLYCOL, AND CRUDE). ASSUMED VOLUME OF CRUDE OIL IS 7.71 BBLS OF THE TOTAL RELEASED ASSUMED OILY WATER.

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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