ENTERPRISE PRODUCTS OPERATING LLC

Incident Narrative

ON 11/20/2014 AT 11:29 AM, THE CONTROL CENTER WAS NOTIFIED THERE WAS A POSSIBLE RELEASE NEAR 310TH STREET AND EUREKA AVENUE IN CEDAR COUNTY, IOWA. THE EXCAVATOR CONTACTED PIPELINE CONTROL IMMEDIATELY TO REPORT THE LINE STRIKE. AN ENTERPRISE EMPLOYEE ARRIVED ON SITE AT 11:43 TO CONFIRM THAT THERE WAS A LEAK AT AM 7 OF THE CLINTON LINES VIA A VAPOR CLOUD BEING PRESENT. THERE ARE TWO LINES PRESENT IN THIS AREA, AN 8"" AND A 10"". BOTH LINES WERE DOUBLE ISOLATED. A PRESSURE GAUGE WAS USED TO MONITOR PRESSURES ON BOTH LINES TO DETERMINE THAT THE 8"" CLINTON LATERAL WAS HIT. AN EXCAVATOR WAS INSTALLING DRAIN TILE FROM NORTH TO SOUTH AND THE 8"" LINE WAS THE MOST NORTHERN AND WAS STRUCK. AN ENTERPRISE INCIDENT COMMAND POST WAS ESTABLISHED WEST OF EUREKA AVENUE ON 310TH STREET. ROADS WERE BLOCKED BY THE FIRE DEPARTMENT AND LAW ENFORCEMENT TO RESTRICT ACCESS TO THE LEAK SITE. 12 HOUSEHOLDS WERE TEMPORARILY EVACUATED. TO EVACUATE THE LINE, A FLARE WAS SET UP UPSTREAM OF THE ACCIDENT SITE. CONTINUOUS FLARING OCCURRED UNTIL THE PIPELINE COULD BE SWEPT WITH NITROGEN. THE PLOW WAS REMOVED FROM THE PIPE, THE DAMAGE SEGMENT WAS CUT OUT, AND THE REPAIRS WERE MADE. THE PIPELINE WAS RETURNED TO SERVICE ON 11/13/2014 AT 20:57. AN INCIDENT INVESTIGATION WAS INITIATED TO DETERMINE WHY THE EXCAVATOR WAS EXCAVATING IN THE VICINITY OF OUR PIPELINES. THE EXCAVATOR HAD MADE A ONE CALL BUT THE HE VENTURED OUTSIDE OF THE ONE CALL BOUNDARIES; THE LOCATION OF THE LINE STRIKE WAS NOT COVERED BY THE ONE CALL.