COLONIAL PIPELINE CO

hazardous_liquid Incident —

Incident Information

Report Date
OperatorCOLONIAL PIPELINE CO
Commodity—
Pipeline Typehazardous_liquid

Location

State
Coordinates30.71393, -91.27505

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

ON 11/16/16, AT APPROXIMATELY 09:30, A CONTRACT INSPECTOR WORKING NEAR THE LINE 2 STATION 1250HP OIL BOOSTER AT BATON ROUGE JUNCTION NOTICED A PRODUCT STAIN ON THE GROUND NEAR THE BOOSTER SUCTION VALVE. HE IMMEDIATELY NOTIFIED A COLONIAL INSPECTOR WHO RESPONDED AT APPROXIMATELY 9:32 WITH A CREW THAT STARTED EXPLORATORY EXCAVATIONS AND INITIAL CLEANUP ACTIVITIES. LINE 2 OUT OF BATON ROUGE WAS NOT RUNNING AT THE TIME. THE INSPECTOR NOTIFIED THE ENVIRONMENTAL SPECIALIST WHO, IN-TURN, INFORMED THE OPERATIONS MANAGER OF THE RELEASE. ALL SPILLED PRODUCT WAS CONTAINED WITHIN THE SOIL IN THE IMMEDIATE AREA. THE SOURCE OF THE RELEASE (FAILED BONNET O-RING ON THE BOOSTER SUCTION VALVE) WAS NOT DISCOVERED UNTIL APPROXIMATELY 23:30 AS IT TOOK CONSIDERABLE CARE AND TIME TO EXCAVATE AROUND THE BOOSTER AND NEARBY VALVES AND APPURTENANCES. INITIAL REPAIR ATTEMPTS STARTED AT APPROXIMATELY 23:30 AND FINAL REPAIRS WERE COMPLETED AT APPROXIMATELY 02:00 ON 11/17/16. THE STATE OF LA (SPOC) WAS NOTIFIED AT 08:01 ON 11/17/16. NO OTHER EXTERNAL NOTIFICATIONS WERE REQUIRED. FINAL CLEANUP ACTIVITIES ARE STILL IN-PROGRESS. BASED ON HYDRAULIC ANALYSIS (VOLUME AND RELEASE RATE ESTIMATES), THE LEAK IS ESTIMATED TO HAVE STARTED ON APPROXIMATELY 10/5/16 AT APPROXIMATELY 19:30. BASED ON HYDRAULIC ANALYSIS (VOLUME AND RELEASE RATE ESTIMATES), THE LEAK IS ESTIMATED TO HAVE STARTED ON APPROXIMATELY 10/5/16 AT APPROXIMATELY 19:30. THIS ESTIMATE IS BASED ON THE FOLLOWING FACTORS: SMALL RATE OF RELEASE: FOLLOWING EXCAVATION OF THE OIL BOOSTER SUCTION VALVE, LINE PRESSURE WAS APPLIED IN ORDER TO LOCATE THE LEAK. TYPICAL PRESSURE FOR THIS SECTION OF PIPE IS APPROXIMATELY 50 PSI. WHEN APPLIED PRESSURE REACHED 100PSI A MINIMAL AMOUNT OF PRODUCT BEGAN TO SEEP FROM THE VALVE BONNET. USING THE OBSERVED LEAK RATE AND TOTAL VOLUME ESTIMATE, THE HYDRAULIC ENGINEERING STAFF CALCULATED THE DATE AND TIME OF THE INITIAL RELEASE. DAILY MONITORING: OPERATIONS PERSONNEL MAKE DAILY ROUNDS THROUGH THE PUMP STATION TAKING READINGS AND CHECKING EQUIPMENT. THE LINE 2 BOOSTER OIL LEVEL IS ONE OF THE ITEMS CHECKED EVERY DAY. OPERATORS CHECKING THE OIL LEVEL WOULD HAVE OBSERVED STAINED GRAVEL OR OTHER EVIDENCE OF A LEAK AT THAT LOCATION.

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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