"MAGELLAN OPERATING COMPANY, LLC"
hazardous_liquid Incident — — December 5, 2022
Incident Information
| Incident Date | December 5, 2022 |
| Operator | "MAGELLAN OPERATING COMPANY, LLC" |
| Commodity | REFINED AND/OR PETROLEUM PRODUCT (NON-HVL) WHICH IS A LIQUID |
| Pipeline Type | hazardous_liquid |
Location
| State | |
| Coordinates | 29.73413, -95.15866 |
Cause
| Cause | EQUIPMENT FAILURE |
| Subcause | NON-THREADED CONNECTION FAILURE |
Casualties
| Fatalities | 0 |
| Injuries | 0 |
Costs
| Property Damage | $100 |
| Emergency Response | $50,000 |
| Other Costs | $0 |
Location Map
Incident Narrative
"AT 09:04 ON DECEMBER 5TH, 2022 MAGELLAN OPERATIONS PERSONNEL WERE CONDUCTING A DAILY FACILITY INSPECTION WHEN PRODUCT WAS DISCOVERED TO BE LEAKING FROM A 6"" BLIND FLANGE CONNECTION ON A VERTICAL STANDPIPE ON THE 42"" FILL/RECEIVE LINE FOR TANK 1648. THE LEAK SOURCE WAS ISOLATED AND CLEANUP ACTIVITIES WERE INITIATED. FURTHER INVESTIGATION DETERMINED A GASKET HAD FAILED. THE DATA INDICATES THE GASKET EXPERIENCED FATIGUE AND EVENTUAL FAILURE DUE TO A COMBINATION OF VACUUM CONDITIONS AND RAPID PRESSURE OSCILLATIONS IN THE 6"" RISER PIPE NEAR THE CLOSED TANK VALVE ASSOCIATED WITH THE COMMON TANK HEADER SYSTEM. TO PREVENT A RECURRENCE, TWO 6"" VERTICAL BLIND FLANGE CONNECTIONS AND GASKETS ASSOCIATED WITH TANK 1648 AND TANK 1649 WERE REMOVED AND REPLACED WITH WELD CAPS, AND AN ADMINISTRATIVE PROCEDURE TO ONLY USE TANKS 1648 AND 1649 SIMULTANEOUSLY WAS IMPLEMENTED. ADDITIONALLY, DUE TO A SIMILAR ARRANGEMENT WITH TANKS 1646 AND 1647, THE 6"" BLIND FLANGE CONNECTIONS AND GASKETS ASSOCIATED WITH THOSE TANKS WERE REMOVED AND REPLACED WITH WELD CAPS, AND AN ADMINISTRATIVE PROCEDURE TO ONLY USE TANKS 1646 AND 1647 SIMULTANEOUSLY WAS IMPLEMENTED. SUPPLEMENTAL (2/21/2023): PARTS A, C, G, K, H SUPPLEMENTAL (2/28/2023): PART B - LOCATION CHANGED FROM ""PASADENA WATERFRONT"" TO ""PASADENA TERMINAL TANKS (46 TANKS)"" PER TRRC REQUEST"
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.