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ENTERPRISE PRODUCTS OPERATING LLC

hazardous_liquid Incident —

Incident Information

Report Date—
OperatorENTERPRISE PRODUCTS OPERATING LLC
Commodity—
Pipeline Typehazardous_liquid

Location

State
Coordinates28.88588, -96.43303

Cause

CauseMATERIAL FAILURE OF PIPE OR WELD
Subcause—

Casualties

Fatalities0
Injuries0

Costs

Property Damage—
Lost Commodity—
Public/Private Damage—
Emergency Response—
Environmental Remediation—
Other Costs—

Location Map

Incident Narrative

ON 1/10/2015 AT 20:45 HRS, PIPELINE CONTROL DISCOVERED A PRESSURE LOSS ON SM102. CONTROLLER SHUT DOWN THE LINE AND ISOLATED IT TO INVESTIGATE THE ISSUE. AT 2154 HRS. IT WAS DETERMINED THAT AFTER CLOSING BLOCK VALVES, THAT THERE WAS A LEAK AND THE COST WOULD BE OVER $50K. NRC NOTIFICATION WAS MADE AT 22:01 HRS. THE PIPELINE PRESSURE WAS MONITORED OVERNIGHT BY PIPELINE CONTROL. ON 1/11/2015, OPERATIONS RESUMED INVESTIGATION OF LEAK. AT 10:40 HRS ON 1/11/2015, THE LEAK WAS DISCOVERED BY LANDOWNER IN THE MIDDLE OF A FIELD. LANDOWNER NOTIFIED ENTERPRISE AND OPERATIONS IMMEDIATELY RESPONDED TO VERIFY THE LEAK LOCATION. ON 1/16/2015, THE LINE WAS PURGED WITH NITROGEN AND LEAK SITE WAS EXCAVATED. ON 1/17/2015, 27 FEET OF PIPE WAS REMOVED AND SENT FOR METALLURGICAL ANALYSIS. ON 1/18/2015, REPLACEMENT PIPE WAS INSTALLED, COATED, AND BACK-FILLED. LINE WAS THEN RETURNED TO SERVICE 1/28/2015. UPDATE 4/13/2015 - ON 3/19/2015 RECEIVED METALLURGICAL ANALYSIS REPORT ON FAILED PIECE OF PIPE. RESULTS OF ANALYSIS INDICATES THAT THE LEAK WAS THE RESULT OF A COMBINATION OF BENDING STRESS, MISALIGNMENT OF THE PIPE ENDS, AND UNDER-BEAD CRACKING IN THE GIRTH WELD. AS A RESULT OF THE REPORT AND THE ATTRIBUTING FACTORS TO THE FAILURE, A BENDING STRAIN ANALYSIS WILL BE PERFORMED FOR THE ENTIRE SEGMENT OF THE LID SM102 AID 5365 VANDERBILT TO SWEENY 16 PIPELINE SEGMENT. THE BENDING STRAIN ANALYSIS WILL BE PERFORMED BY A PREVIOUS (2011) ROSEN IMU ILI TOOL RUN ON THE SEGMENT. ONCE THE ANALYSIS IS COMPLETED, THE DATA WILL BE REVIEWED AT THE FAILURE LOCATION TO SEE IF THERE ARE ANY SIMILAR OCCURRENCES ON THE PIPELINE. UPDATED - 7/28/2015 THE BENDING STRAIN ANALYSIS WAS COMPLETED AND AS A RESULT OF THE ANALYSIS, TWO LOCATIONS HAVE BEEN IDENTIFY HAS HAVING SIMILAR BENDING STRAINS COMPARED TO THE FAILED LOCATION. AN ADDITIONAL LOCATION HAS BEEN ADDED TO THE DIGS BECAUSE OF A SIMILAR REPAIR WAS DONE ADJACENT TO THE FAILED LOCATION SEGMENT. A TOTAL OF THREE LOCATIONS HAVE BEEN RECOMMENDED FOR EXCAVATION, INVESTIGATION AND REMEDIATION IF REQUIRE.

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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