Event Notification Report for November 29, 2016

OFFSITE NOTIFICATION DUE TO 150 GALLON OIL SPILL IN THE SWITCHYARD

"While operating in mode 1 at 100% rated thermal power an approximately 150 gallon oil spill occurred in the switchyard. Westar Energy personnel were performing corrective maintenance on the station's #6 transformer that required cleaning the oil. The #6 transformer was out of service at the time. The oil was being transferred to a group of hold up tanks. One of the tanks overflowed before the next tank could be placed in service. This resulted in the spill of approximately 150 gallons of UNIVOLT N 61 B, electrical insulating oil onto gravel and soil. The spill has been stopped. The oil had recently been sampled and there were no detectable polychlorinated biphenyls, PCBs. A clean up plan is being developed. Condition Report 00109759 has been generated.

"The acting NRC Senior Resident has been informed."

The reportable quantity for the oil is 5 gallons. The licensee has notified the State of Kansas Department of Health and Environment and the National Response Center.

OFFSITE NOTIFICATION DUE TO CHEMICAL SPILL ONSITE

"On 11/29/16 at 0654 EST, a chemical spill of approximately 525 gallons of Flo-guard was reported to the main control room from the raw water system chemical treatment control building (near the intake pumping station). No personnel injuries have resulted from this spill. The spill has stopped and is contained to the immediate area of the building. The spill has not reached the waters of the United States. The hazardous constituent of Flo-guard is Zinc Chloride.

"Source of spill was a piping failure that allowed the contents of a storage tank to drain onto the ground in the immediate vicinity overnight. The area has been contained and does not impact any plant operations.

"At 0728, TVA determined that due to the volume of spill (approximately 525 gal.) being greater than 306 gal. of Zinc Chloride, this event is reportable under the WBN [Watts Bar Nuclear] Integration Pollution Prevention Plan. The Shift Manager notified the National Spill Response Center at 0732 and the Tennessee Emergency Management Agency at 0738. Rhea County Emergency Response, Nuclear Duty Officer and NRC Resident have been informed.

"This is being reported under 10 CFR 50.72(b)(2)(xi), 'Any event or situation, related to the health and safety of the public or onsite personnel, or protection of the environment, for which a news release is planned or notification to other government agencies has been or will be made,' due to the notification of other government agencies of the spill."

AGREEMENT STATE REPORT - TROXLER DENSITY GAUGE STUCK SHUTTER

The following was received from the State of Arizona via email:

"During a routine and unannounced inspection, the Arizona Radiation Regulatory Agency discovered a Troxler 3400 series portable density gauge (Serial# 6666) was in storage with a shutter that was stuck open. The gauge contains approximately 8 milliCuries of Cesium-137 and 40 milliCuries of Americium-241. The licensee was informed of the malfunction and will have a service company come and repair the gauge.

"The [Arizona Radiation Regulatory] Agency is continuing to investigate the event.

"First Notice: 16-026"

AGREEMENT STATE REPORT - PERSONNEL OVEREXPOSURE

The following was received from the State of Arizona via email:

"During a routine and unannounced inspection, the Arizona Radiation Regulatory Agency found an incident while reviewing personnel dosimetry reports. In quarterly reports covering dates 4/1/14-6/30/14, 7/1/14-9/30/14, 10/1/14-12/31/14, a single worker received a dose of 3017 mrem, 3497 mrem, and 853 mrem respectively. This resulted in a yearly total of 7367 mrem, above the 5000 mrem yearly limit for radiation workers. The overexposure was not reported to the Arizona Radiation Regulatory Agency.

"The [Arizona Radiation Regulatory] Agency is continuing to investigate the event.

"First Notice: 16-027"