ENABLE OKLAHOMA INTRASTATE TRANSMISSION, LLC

Incident Narrative

PROLONGED PERIODS OF RAIN CAUSED EXTREME FLOODING IN THE SOUTH CANADIAN RIVER WHERE THIS PIPELINE CROSSES THE RIVER. THE PIPELINE WAS UNDERGROUND. APPROXIMATELY 100 YARDS HORIZONTAL DISTANCE OF SOIL FROM THE ORIGINAL RIVER BED HAS BEEN WASHED AWAY EXPOSING THE PIPELINE. DUE TO CONSIDERABLE RAINFALL SINCE THE INCIDENT, THE PIPELINE IS STILL UNDER WATER SO NO ASSESSMENT OF DAMAGE HAS BEEN MADE. PLANS ARE TO ASSESS THE PIPELINE ONCE IT IS POSSIBLE AND PLAN THE REPAIRS ACCORDINGLY. A SUPPLEMENTAL REPORT WILL BE COMPLETED ONCE ALL INFORMATION IS KNOWN. SUPPLEMENTAL INFORMATION: WITH WATER LEVELS BACK TO THE NORMAL IN THE RIVER, THE PIPELINE STILL CANNOT BE SEEN VISUALLY. THE COMPANY HAS MADE A DECISION TO ABANDON THE PIPE LOCATED IN THE RIVER. THE PERMANENT SOLUTION WILL BE TO BORE THE RIVER AND LAY NEW PIPE. EXPECTED COMPLETION OF THIS PROJECT IS SCHEDULED FOR OCTOBER 2015. UPON COMPLETION, A FINAL REPORT WILL BE SENT IN WITH DAMAGE AND REPAIR COSTS. SUPPLEMENTAL INFORMATION: BORE CONSTRUCTION IS COMPLETE. THE NEW LINE WAS TIED ON 1/5/17 AND BACKFILLED ON 1/9/17. PIPELINE WAS PUT BACK IN SERVICE ON 1/10/17. THE SECTION OF PIPE WITH THE DEFECT WAS ABANDONED IN PLACE. WATER LEVELS IN THE SOUTH CANADIAN RIVER NEVER RECEDED ENOUGH FOR AN EXTERNAL EXAMINATION OF THE LEAK SITE.