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Event Notification Report for April 4, 2016

U.S. Nuclear Regulatory Commission
Operations Center

Event Reports For
04/01/2016 - 04/04/2016

** EVENT NUMBERS **


51822 51823 51844 51845 51846

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Agreement State Event Number: 51822
Rep Org: GEORGIA RADIOACTIVE MATERIAL PGM
Licensee: SHAW INDUSTRIES GROUP, INC
Region: 1
City: CHICKAMAUGA State: GA
County:
License #:
Agreement: Y
Docket:
NRC Notified By: MONICA JOHNSON
HQ OPS Officer: MARK ABRAMOVITZ
Notification Date: 03/24/2016
Notification Time: 16:13 [ET]
Event Date: 03/24/2016
Event Time: [EDT]
Last Update Date: 03/24/2016
Emergency Class: NON EMERGENCY
10 CFR Section:
AGREEMENT STATE
Person (Organization):
RAY MCKINLEY (R1DO)
NMSS_EVENTS_NOTIFICA (EMAI)

Event Text

AGREEMENT STATE REPORT - FIXED INDUSTRIAL GAUGE SHUTTER BROKEN

The following information was received via e-mail:

"On Thursday, March 24, 2016, it was reported to the Department [Georgia Department of Radioactive Materials] by Shaw Industries Group, Inc., Plant SI in Chickamauga, GA that the shutter on a fixed industrial gauge is broken. The gauge was shielded, removed from its fixed location, and transferred to a secure storage location. The manufacturer has been contacted and will repair the gauge. A complaint has been opened in CTS [ Complaint Tracking System] and our office [Georgia Department of Radioactive Materials] has an ongoing investigation."

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Agreement State Event Number: 51823
Rep Org: SC DIV OF HEALTH & ENV CONTROL
Licensee: INTERNATIONAL PAPER
Region: 1
City: EASTOVER State: SC
County:
License #: 341
Agreement: Y
Docket:
NRC Notified By: JAMES PETERSON
HQ OPS Officer: STEVE SANDIN
Notification Date: 03/25/2016
Notification Time: 13:15 [ET]
Event Date: 03/23/2016
Event Time: [EDT]
Last Update Date: 03/25/2016
Emergency Class: NON EMERGENCY
10 CFR Section:
AGREEMENT STATE
Person (Organization):
RAY MCKINLEY (R1DO)
NMSS_EVENTS_NOTIFIC (EMAI)

Event Text

AGREEMENT STATE REPORT - FIXED NUCLEAR GAUGE SHUTTER STUCK IN CLOSED POSITION

The following information was provided by the State of South Carolina via email:

"The licensee [International Paper] provided notification [to the SC Department of Health and Environmental Control] of a stuck shutter on a Berthold Model LB7440 fixed gauging device. The shutter is stuck in the closed position. The gauging device contains 15 mCi of Cs-137. A licensed contractor has been contacted and will proceed with corrective maintenance on the shutter mechanism within the next 30 days. Updates to this event will be made through the NMED system."

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Power Reactor Event Number: 51844
Facility: PALO VERDE
Region: 4 State: AZ
Unit: [ ] [ ] [3]
RX Type: [1] CE,[2] CE,[3] CE
NRC Notified By: ARMANDO AVILES
HQ OPS Officer: HOWIE CROUCH
Notification Date: 04/02/2016
Notification Time: 03:50 [ET]
Event Date: 04/01/2016
Event Time: 22:29 [MST]
Last Update Date: 04/02/2016
Emergency Class: NON EMERGENCY
10 CFR Section:
50.72(b)(2)(xi) - OFFSITE NOTIFICATION
Person (Organization):
VINCENT GADDY (R4DO)

Unit SCRAM Code RX CRIT Initial PWR Initial RX Mode Current PWR Current RX Mode
3 N Y 100 Power Operation 100 Power Operation

Event Text

OFFSITE NOTIFICATION DUE TO SODIUM HYPOCHLORITE SPILL ON SITE

"The following event description is based on information currently available. If through subsequent reviews of this event additional information is identified that is pertinent to this event or alters the information being provided at this time a follow-up notification will be made via the ENS or under the reporting requirements of 10CFR50.73.

"At approximately 2229 [MST] on April 1, 2016, Arizona Public Service Company completed an offsite notification to the Environmental Protection Agency's National Response Center to report a spill of approximately 8000 gallons of sodium hypochlorite (8% solution) in the vicinity of the Unit 3 cooling towers at the Palo Verde Nuclear Generating Station (PVNGS). Additional notifications were made to Arizona State and Maricopa County environmental authorities.

"The Unit 3 cooling towers are located in the Security Owner Controlled Area at PVNGS and are outside of the protected area. The leak, which resulted from a failed hose on the main hypochlorite distribution header, was stopped by closing a valve to isolate the header. The immediate area has been barricaded. The quantity released exceeded the Reportable Quantity for sodium hypochlorite (RQ of 100 pounds) and was therefore reported. There was no impact to the operation of the PVNGS units or personnel onsite or offsite.

"The NRC Senior Resident has been notified."

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Power Reactor Event Number: 51845
Facility: CLINTON
Region: 3 State: IL
Unit: [1] [ ] [ ]
RX Type: [1] GE-6
NRC Notified By: JUSTIN REYNOLDS
HQ OPS Officer: MARK ABRAMOVITZ
Notification Date: 04/02/2016
Notification Time: 18:27 [ET]
Event Date: 04/02/2016
Event Time: 12:57 [CDT]
Last Update Date: 04/02/2016
Emergency Class: NON EMERGENCY
10 CFR Section:
50.72(b)(3)(v)(C) - POT UNCNTRL RAD REL
Person (Organization):
PATTY PELKE (R3DO)

Unit SCRAM Code RX CRIT Initial PWR Initial RX Mode Current PWR Current RX Mode
1 N Y 99 Power Operation 99 Power Operation

Event Text

INSULATOR FAILURE ON RESERVE AUXILIARY TRANSFORMER

"At approximately 1257 [CDT] on 4/02/16, the Main Control Room received numerous annunciators that indicated a trip of the Reserve Auxiliary Transformer (RAT) Static VAR Compensator (SVC) that was caused by an insulator failure of the 'A' phase 345kV Circuit Switcher. As a result of the voltage transient, the Division 1 Fuel Building Ventilation (VF) system isolation dampers closed causing a trip of VF supply and exhaust fans. With no running VF fans, secondary containment differential pressure rose to slightly greater than 0 inches water gauge which exceeded the Technical Specification requirement of greater than 0.25 inches vacuum water gauge. The Control Room entered EOP-8, Secondary Containment Control. This event is being reported as a 'Condition that Could Have Prevented Fulfillment of a Safety Function' under 10CFR50.72(b)(3)(v)(C). Secondary Containment differential pressure was restored within Technical Specification requirements at 1300 [CDT] by starting the Standby Gas Treatment HVAC (VG) system.

"The NRC Resident Inspector has been notified."

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Power Reactor Event Number: 51846
Facility: CALLAWAY
Region: 4 State: MO
Unit: [1] [ ] [ ]
RX Type: [1] W-4-LP
NRC Notified By: DAVID HURT
HQ OPS Officer: RICHARD SMITH
Notification Date: 04/03/2016
Notification Time: 07:13 [ET]
Event Date: 04/02/2016
Event Time: 23:02 [CDT]
Last Update Date: 04/03/2016
Emergency Class: NON EMERGENCY
10 CFR Section:
50.72(b)(3)(iv)(A) - VALID SPECIF SYS ACTUATION
Person (Organization):
VINCENT GADDY (R4DO)

Unit SCRAM Code RX CRIT Initial PWR Initial RX Mode Current PWR Current RX Mode
1 N N 0 Cold Shutdown 0 Cold Shutdown

Event Text

REACTOR PROTECTION SYSTEM ACTUATION WHILE REACTOR SHUTDOWN

"At 2302 [CDT] on April 2, 2016, with the plant shutdown, [with] all control rods inserted in the reactor and while attempting to reset the reactor trip breakers to support outage activities (reset of the main turbine), the reactor trip breakers reopened. This was identified to be due to having both trains of Solid State Protection System (SSPS) out of service while in Mode 5. With both trains of SSPS out of service, a condition was met that would cause a reactor trip signal due to having a general warning condition on both trains. Per procedure, the control rods were incapable of withdrawal and fully inserted. Reactor Coolant System boron was 2280 ppm. There were no actuations as a result of the reactor trip breakers opening due to SSPS being removed from service."

The licensee will be notifying the NRC Resident Inspector.

Page Last Reviewed/Updated Monday, April 04, 2016
Monday, April 04, 2016