MCCAIN PIPELINE COMPANY
hazardous_liquid Incident — — March 7, 2013
Incident Information
| Incident Date | March 7, 2013 |
| Operator | MCCAIN PIPELINE COMPANY |
| Commodity | REFINED AND/OR PETROLEUM PRODUCT (NON-HVL) WHICH IS A LIQUID |
| Pipeline Type | hazardous_liquid |
Location
| State | |
| Coordinates | 32.53215, -88.57479 |
Cause
| Cause | EQUIPMENT FAILURE |
| Subcause | THREADED CONNECTION/COUPLING FAILURE |
Casualties
| Fatalities | 0 |
| Injuries | 0 |
Costs
| Property Damage | $45,000 |
| Emergency Response | $900,000 |
| Other Costs | $50,000 |
Location Map
Incident Narrative
DURING EMERGENCY RESPONSE OPERATIONS, AT APPROXIMATELY 7:30 PM CST, SATURDAY, MARCH 9, 2013, A FLANGE WAS DISCOVERED ON AN UNDERGROUND SEGMENT OF THE PIPELINE, APPROXIMATELY 170 FEET FROM THE NORTH SIDE OF PONTA CREEK. THE BOTTOM BOLT/NUT OF THE FLANGE WAS DISCOVERED TO HAVE SHEARED OFF OF THE FLANGE, RESULTING IN A RELEASE OF FUEL FROM THE POINT OF THE SHEARED BOLT/NUT. THE CAUSE OF THE SHEARED BOLT/NUT WAS DETERMINED TO BE HYDROGEN STRESS CRACKING OF THE BOLTS SECURING THE FLANGED CONNECTION, DUE TO THE GRADE OF BOLTS BEING UNSUITABLE FOR BURIED SERVICE UNDER CATHODIC PROTECTION. THE DEPTH OF SOIL COVER AT THE LOCATION OF THE FLANGE ON THE PIPELINE WAS APPROXIMATELY 3 FEET. THE PIPELINE IS CATHODICALLY PROTECTED. THE CAUSE WAS DETERMINED BY METALLURGICAL EXAMINATION PERFORMED BY STRESS ENGINEERING SERVICES, INC. A COPY OF THE SES REPORT WAS TRANSMITTED TO PHMSA (CHRIS TAYLOR) ON 22 MAY 2013.
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.