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Event Notification Report for October 14, 2019

U.S. Nuclear Regulatory Commission
Operations Center

EVENT REPORTS FOR
10/13/2019 - 10/14/2019

EVENT NUMBERS
5432954331

Power Reactor
Event Number: 54329
Facility: COMANCHE PEAK
Region: 4     State: TX
Unit: [] [2] []
RX Type: [1] W-4-LP,[2] W-4-LP
NRC Notified By: BRIAN MITCHELL
HQ OPS Officer: JEFF HERRERA
Notification Date: 10/15/2019
Notification Time: 19:10 [ET]
Event Date: 10/14/2019
Event Time: 09:11 [CDT]
Last Update Date: 10/15/2019
Emergency Class: NON EMERGENCY
10 CFR Section:
50.72(b)(3)(xiii) - LOSS COMM/ASMT/RESPONSE
Person (Organization):
HEATHER GEPFORD (R4DO)
Power Reactor Unit Info
Unit SCRAM Code RX Crit Initial PWR Initial RX Mode Current PWR Current RX Mode
2 N Y 100 Power Operation 100 Power Operation
Event Text
MAIN STEAM LINE (MSL) RADIATION MONITOR REMOVED FROM SERVICE FOR PLANNED MAINTENANCE

"At time 0911 [CDT], Main Steamline Radiation Monitor 2-RUK-2325/2327 (MAIN STEAM LINE 2-01/2-03 RADIATION
MONITOR) was removed from service for planned maintenance.

"Compensatory measures were in place prior to removing the monitor from service to assure adequate monitoring capability
available to implement the CPNPP emergency plan in the unlikely event of challenges to the steam generator or fuel cladding. The N16 radiation monitor serves as a backup with alarm function and Radiation Protection technicians have been briefed on taking local readings with a Geiger-Mueller tube on MSL [Main Steam Line] 2-01 and MSL 2-03.

"With this radiation monitor non-functional, with compensatory measures in place, and the monitor NOT expected to be returned to service within 72 hours, the condition is reportable as a loss of assessment capability per 10CFR50.72(b)(3)(xiii).

"Comanche Peak Nuclear Power Plant (CPNPP) has assurance of steam generator integrity and fuel cladding integrity
and there is negligible safety significance to the current condition with respect to the public health and safety perspective.

"Corrective actions are being pursued to complete maintenance and restore 2-RUK-2325/2327 to functional status.

"The NRC Resident Inspector has been notified."


Fuel Cycle Facility
Event Number: 54331
Facility: WESTINGHOUSE ELECTRIC CORPORATION
Region: 2     State: SC
Unit: [] [] []
RX Type: URANIUM FUEL FABRICATION
NRC Notified By: GERARD COUTURE
HQ OPS Officer: JEFF HERRERA
Notification Date: 10/15/2019
Notification Time: 19:49 [ET]
Event Date: 10/14/2019
Event Time: 00:00 [EDT]
Last Update Date: 10/15/2019
Emergency Class: NON EMERGENCY
10 CFR Section:
PART 70 APP A (c) - OFFSITE NOTIFICATION/NEWS REL
Person (Organization):
BRADLEY DAVIS (R2DO)
NMSS_EVENTS_NOTIFICATION (EMAIL)
Event Text
THREE INDIVIDUALS SENT TO HOSPITAL DUE TO CONCERNS AFTER COMPLETION OF MAINTENANCE WORK

"On October 14, 2019, out of an abundance of caution, three employees were sent to the hospital after reporting an unusual taste in their mouths following completion of maintenance work on the hydrofluoric acid (HF) process equipment.

"The employees stayed at the hospital overnight for observation and were released today with no work restrictions. Medical treatment was provided to one employee, therefore requiring a report to South Carolina Occupational Safety and Health Administration (SC OSHA) on October 15, 2019.

"The area around the equipment was monitored for airborne concentration levels of HF with no readings approaching any safety limits in the immediate or adjoining areas. Access to the area is controlled, and the equipment remains shutdown pending completion of maintenance activities and appropriate testing before return to operation.

"There were no health or safety consequences to the public or the environment, and there was no radioactive material involved.

"This report has been entered into the facility Corrective Action Program (CAP)."

The licensee notified the NRC Region II office (McCurry).