| Upon arrival at the PA 313-33 tank facility this morning, the TEP pumper discovered that a vent valve on the water main water inlet line was not completely closed and was leaking produced water inside the lined, metal secondary containment structure. It is estimated that approximately 50 bbls of produced water had leaked; however, the entire volume was completely contained within the containment structure. The perimeter of the containment structure was inspected and there are no impacts outside of the containment. The root cause of the spill is human error as it was determined that a water management contractor had inadvertently not completely closed the vent valve. TEP has investigated the matter and has reviewed the proper procedure for setting valves at the tank farm with the contractor to prevent this incident from occuring in the future. TEP production personnel has also inspected all valves and fittings to ensure integrity and proper function. |