VALERO PARTNERS OPERATING CO. LLC

Incident Narrative

A LANDOWNER CONTACTED VALERO ABOUT A PRODUCTS ODOR AT 0905 HOURS ON 4/28/2018. THE PIPELINE WAS DOWN AS OF 2200 HOURS ON 4/27/2018, WITH THE LAST SHIPMENT BEING DIESEL. LOCAL VALERO PERSONNEL ARRIVED AT LANDOWNERS HOME AT 0950 HOURS ON 4/28/2018 AND WORKED ON GETTING TO THE POSSIBLE RELEASE SITE. AT 1024 HOURS ON 4/27/2018 VALERO IDENTIFIED THE RELEASE AS ASSOCIATED WITH THE VALERO LINE. THE VALERO PIPELINE WAS EXCAVATED AND AN INDICATION OF A POSSIBLE PINHOLE LEAK WAS FOUND ON 4/28/2017. VALERO APPLIED A PLIDCO CLAMP AND THE PIPELINE WAS RESTARTED AT 2254 HOURS ON 4/28/2018 CST. SOIL REMEDIATION WAS INITIATED AND AN INVESTIGATION/CUTOUT ON THE FAILED PIPE WILL FOLLOW IN JUNE 2018. SUPPLEMENTAL 6/27/18 - PART D REMEDIATION COSTS UPDATED SUPPLEMENTAL 8/24/18 - PART D ESTIMATED COSTS UPDATED SUPPLEMENTAL AND FINAL REPORT 12/5/18 - PART G EXTERNAL CORROSION UPDATED SELECTIVE SEAM CORROSION AS INDICATED IN THE INCIDENT INVESTIGATION METALLURGY REPORT. DATES OF LAST ILI'S WERE ALSO UPDATED IN PART G TO REFLECT THE 2018 ASSESSMENTS.