KURARAY AMERICA, INC.

Incident Narrative

ON 6/20/2016 AT 15:00 CONTRACTOR WORKING IN THE FACILITY NOTIFIED COMPANY OF A SMALL PUDDLE OF LIQUID AND THE SMALL OF ACETIC ACID NEAR THE PIPELINE. PIPELINE WAS BLOCKED IN AND THE MATERIAL CONFIRMED TO BE 15% ACETIC ACID. TANK TRAILERS WERE DELIVERED THE NEXT MORNING AND THE PIPELINE PIGGED EMPTY INTO THE TRAILERS. THEN THE PIPELINE WAS FLUSHED WITH WATER AND PIGGED INTO TANK TRAILER TO CLEAR THE PIPELINE. THE INITIAL LEAK MATERIAL AND SURROUNDING SOIL WAS EXCAVATED AND PLACED IN CONTAINMENT HYDRO EXCAVATION WAS UTILIZED TO REMOVE ALL SOIL AROUND THE PIPELINE. ALL SOIL WAS REMOVED AND CONTAINED BY 6/26/16. THE LEAK DETECTION BEGAN AND THE LEAK IDENTIFIED UTILIZING NITROGEN PRESSURE. THE LEAKING WELD DID NOT LEAK UNTIL PRESSURE EXCEEDED 20 PSIG. RADIOGRAPHIC INSPECTION CONFIRMED WELD CORROSION AND SMALL PIN HOLE BREECH. PIPE SECTION WAS CUT OUT AND INSIDE VISUAL INSPECTION INDICATED CORROSION IN THE HEAT ZONE OF THE PIPE WELD. CAUSE NO KNOWN AT THIS TIME AND ADDITIONAL TESTING UNDERWAY. PIPE WILL BE REPLACED, RT INSPECTED AND THE PIPELINE HYDRO TESTED BEFORE RETURNING TO SERVICE. FAILED WELD HAS BEEN SENT TO 3RD PARTY LABORATORY FOR ANALYSIS. INITIAL EVALUATION OF THE EVENT DETERMINED IT WAS NOT A REPORTABLE ACCIDENT BUT REPAIR COSTS ARE NOW EXPECTED TO EXCEED THE $50,000 THRESHOLD FOR REQUIRING REPORTING. A PHONE REPORT WAS MADE AS SOON AS COSTS WERE EXPECTED TO EXCEED THE REPORTING THRESHOLD.