NUSTAR PIPELINE OPERATING PARTNERSHIP L.P.
hazardous_liquid Incident — — November 21, 2012
Incident Information
| Incident Date | November 21, 2012 |
| Operator | NUSTAR PIPELINE OPERATING PARTNERSHIP L.P. |
| Commodity | REFINED AND/OR PETROLEUM PRODUCT (NON-HVL) WHICH IS A LIQUID |
| Pipeline Type | hazardous_liquid |
Location
| State | |
| Coordinates | 40.62199, -97.54973 |
Cause
| Cause | MATERIAL FAILURE OF PIPE OR WELD |
| Subcause | ORIGINAL MANUFACTURING-RELATED (NOT GIRTH WELD OR OTHER WELDS FORMED IN THE FIELD) |
Casualties
| Fatalities | 0 |
| Injuries | 0 |
Costs
| Property Damage | $26,000 |
| Emergency Response | $260,000 |
| Other Costs | $0 |
Location Map
Incident Narrative
LANDOWNER NOTIFIED NUSTAR GENEVA TERMINAL IN PERSON THAT PIPELINE MAY HAVE A LEAK. TERMINAL PERSONNEL RESPONDED AND CONFIRMED A LEAK AT 13:30 ON 11/21/2012. THE CUT OUT SECTION OF PIPE HAS BEEN SENT TO KEIFNER FOR METALLURGICAL ANALYSIS. A SUPPLEMENTAL REPORT WILL BE FILED UPON RECEIVING RESULTS. SOILS WERE EXCAVATED AS THE FORM OF REMEDIATION. 5400 CUBIC YARDS OF SOIL WAS APPROVED BY NDEQ TO BE LANDFARMED ON SITE. 2300 CUBIC YARDS OF SOIL WAS HAULED TO A LOCAL PERMITTED LANDFILL. SITE REMEDIATION IS COMPLETE AS OF THIS REPORT. METALLURGICAL ANALYSIS RESULT - THE CAUSE OF THE LEAK WAS PRESSURE CYCLE INDUCED FATIGUE CRACKING THAT INITIATED AT A PRE-EXISTING HOOK CRACK IN THE ELECTRIC-RESISTANCE WELD (ERW) SEAM. THE ORIGINAL HOOK CRACK WAS OPEN TO THE EXTERNAL PIPE SURFACE AND MEASURED 8.49 INCHES LONG BY 0.5 INCH DEEP (EQUIVALENT TO 27% OF THE NORMAL WALL THICKNESS). A PORTION OF THIS HOOK CRACK ENLARGED DUE TO PRESSURE CYCLE INDUCED FATIGUE, RESULTING IN A LEAK OPENING MEASURED 2.0 INCHES LONG ON THE INTERNAL PIPE SURFACE.
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.