BOARDWALK LOUISIANA MIDSTREAM, LLC
hazardous_liquid Incident — — October 22, 2019
Incident Information
| Incident Date | October 22, 2019 |
| Operator | BOARDWALK LOUISIANA MIDSTREAM, LLC |
| Commodity | HVL OR OTHER FLAMMABLE OR TOXIC FLUID WHICH IS A GAS AT AMBI |
| Pipeline Type | hazardous_liquid |
Location
| State | |
| Coordinates | 30.31817, -91.30954 |
Cause
| Cause | EQUIPMENT FAILURE |
| Subcause | MALFUNCTION OF CONTROL/RELIEF EQUIPMENT |
Casualties
| Fatalities | 0 |
| Injuries | 0 |
Costs
| Property Damage | $60 |
| Emergency Response | $0 |
| Other Costs | $0 |
Location Map
Incident Narrative
DURING FLARE OUTAGE, CONTRACTOR WAS GRINDING ON PIPE WHEN, DUE TO A VALVE STEM EMISSION LEAK, SPARKS FLEW AND IGNITED A SMALL CANDLE-LIKE FLAME ON THE VALVE STEM LEAK. THE CANDLE-LIKE FIRE WAS IMMEDIATELY EXTINGUISHED. THE VALVE WAS DE-PRESSURED AND FIRE BLANKETS WERE USED TO PREVENT THIS FROM RECURRING. BLOCK VALVES WERE ISOLATED, PIPING UPSTREAM OF THE VALVE STEM LEAK WAS FLARED TO ZERO PSIG AND A SLIP BLIND WAS INSTALLED TO DOUBLE BLOCK THE ASSOCIATED SEGMENT. THE ANSWER TO PART A QUESTION 9 IS SHOWN AS 0.1 BARRELS BECAUSE THIS IS THE LOWEST VALUE THE SYSTEM WOULD ALLOW; THE PRODUCT LOSS WAS, ACTUALLY, SO MINIMAL IT WAS NOT MEASURABLE. 1-10-2020 UPDATED FOLLOWING FURTHER INVESTIGATION. THE RESPONSE TO PART E, QUESTION 1 IS 300 PSIG; HOWEVER, THIS IS ONLY AN ESTIMATE. THE EXACT PRESSURE IS UNKNOWN. ALSO UPDATED RESPONSE TO PART E, QUESTION 5E.
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.