Event Notification Report for November 02, 2015
U.S. Nuclear Regulatory Commission
Operations Center
EVENT REPORTS FOR
11/01/2015 - 11/02/2015
Power Reactor
Event Number: 51510
Facility: CALVERT CLIFFS
Region: 1 State: MD
Unit: [1] [2] []
RX Type: [1] CE,[2] CE
NRC Notified By: THOMAS JONES
HQ OPS Officer: JEFF HERRERA
Region: 1 State: MD
Unit: [1] [2] []
RX Type: [1] CE,[2] CE
NRC Notified By: THOMAS JONES
HQ OPS Officer: JEFF HERRERA
Notification Date: 11/02/2015
Notification Time: 09:20 [ET]
Event Date: 11/02/2015
Event Time: 09:20 [EST]
Last Update Date: 01/08/2016
Notification Time: 09:20 [ET]
Event Date: 11/02/2015
Event Time: 09:20 [EST]
Last Update Date: 01/08/2016
Emergency Class: NON EMERGENCY
10 CFR Section:
50.72(b)(3)(xiii) - LOSS COMM/ASMT/RESPONSE
10 CFR Section:
50.72(b)(3)(xiii) - LOSS COMM/ASMT/RESPONSE
Person (Organization):
JOHN ROGGE (R1DO)
JOHN ROGGE (R1DO)
| Unit | SCRAM Code | RX Crit | Initial PWR | Initial RX Mode | Current PWR | Current RX Mode |
|---|---|---|---|---|---|---|
| 1 | N | Y | 100 | Power Operation | 100 | Power Operation |
| 2 | N | Y | 100 | Power Operation | 100 | Power Operation |
LOSS OF RADIATION MONITORING EQUIPMENT DUE TO PLANNED MAINTENANCE
"A planned modification at Calvert Cliffs Nuclear Power Plant will remove the Spent Fuel Pool Area Radiation Monitoring system from service. The planned out of service window is expected to be 7 weeks, beginning 11/02/15 and ending 12/18/2015. During this time portable radiation monitors will be installed as compensatory measures to monitor and support timely and accurate EAL declarations. Affected Emergency Response Organization personnel have been made aware of the compensatory measures.
"This notification is being made in accordance with 10 CFR 50.72(b)(3)(xiii) due to a planned event that affects Emergency Preparedness Assessment Capability for greater than 72 hours. An update will be provided once the Spent Fuel Pool Area Radiation Monitoring system is restored to normal operation."
The licensee has notified the NRC Resident Inspector.
* * * UPDATE AT 1616 EST ON 12/18/2015 FROM BRIAN HAYDEN TO MARK ABRAMOVITZ * * *
"This is concerning the planned modification to Calvert Cliffs Nuclear Power Plant Spent Fuel Area Radiation Monitoring System. The modification window is extended to January 8, 2016. Compensatory measures that were put in place on November 2, 2015 will continue to be in effect until the completion of the modification testing and the new equipment is fully in service."
The licensee notified the NRC Resident Inspector.
Notified R1DO (Ferdas).
* * * UPDATE FROM TIM HUBER TO JEFF ROTTON AT 1547 EST ON 01/08/2016 * * *
"This is concerning the planned modification to Calvert Cliffs Nuclear Power Plant Spent Fuel Area Radiation Monitoring System. The modification window was originally extended to January 8, 2016 as updated on December 18, 2015. Based on field equipment issues during the installation process, the modification window has been extended to February 12, 2016. Compensatory measures that were put in place on November 2, 2015 will continue to be in effect until the completion of the modification testing and the new equipment is fully in service."
The licensee notified the NRC Resident Inspector.
Notified R1DO (Dimitriadis).
"A planned modification at Calvert Cliffs Nuclear Power Plant will remove the Spent Fuel Pool Area Radiation Monitoring system from service. The planned out of service window is expected to be 7 weeks, beginning 11/02/15 and ending 12/18/2015. During this time portable radiation monitors will be installed as compensatory measures to monitor and support timely and accurate EAL declarations. Affected Emergency Response Organization personnel have been made aware of the compensatory measures.
"This notification is being made in accordance with 10 CFR 50.72(b)(3)(xiii) due to a planned event that affects Emergency Preparedness Assessment Capability for greater than 72 hours. An update will be provided once the Spent Fuel Pool Area Radiation Monitoring system is restored to normal operation."
The licensee has notified the NRC Resident Inspector.
* * * UPDATE AT 1616 EST ON 12/18/2015 FROM BRIAN HAYDEN TO MARK ABRAMOVITZ * * *
"This is concerning the planned modification to Calvert Cliffs Nuclear Power Plant Spent Fuel Area Radiation Monitoring System. The modification window is extended to January 8, 2016. Compensatory measures that were put in place on November 2, 2015 will continue to be in effect until the completion of the modification testing and the new equipment is fully in service."
The licensee notified the NRC Resident Inspector.
Notified R1DO (Ferdas).
* * * UPDATE FROM TIM HUBER TO JEFF ROTTON AT 1547 EST ON 01/08/2016 * * *
"This is concerning the planned modification to Calvert Cliffs Nuclear Power Plant Spent Fuel Area Radiation Monitoring System. The modification window was originally extended to January 8, 2016 as updated on December 18, 2015. Based on field equipment issues during the installation process, the modification window has been extended to February 12, 2016. Compensatory measures that were put in place on November 2, 2015 will continue to be in effect until the completion of the modification testing and the new equipment is fully in service."
The licensee notified the NRC Resident Inspector.
Notified R1DO (Dimitriadis).
Agreement State
Event Number: 52856
Rep Org: NV DIV OF RAD HEALTH
Licensee: ROBINSON NEVADA MINING COMPANY
Region: 4
City: RUTH State: NV
County:
License #: 17-11-0372-01
Agreement: Y
Docket:
NRC Notified By: MICHAEL W. SCHMIDT
HQ OPS Officer: DONG HWA PARK
Licensee: ROBINSON NEVADA MINING COMPANY
Region: 4
City: RUTH State: NV
County:
License #: 17-11-0372-01
Agreement: Y
Docket:
NRC Notified By: MICHAEL W. SCHMIDT
HQ OPS Officer: DONG HWA PARK
Notification Date: 07/13/2017
Notification Time: 16:05 [ET]
Event Date: 11/02/2015
Event Time: 00:00 [PDT]
Last Update Date: 07/13/2017
Notification Time: 16:05 [ET]
Event Date: 11/02/2015
Event Time: 00:00 [PDT]
Last Update Date: 07/13/2017
Emergency Class: NON EMERGENCY
10 CFR Section:
10 CFR Section:
Person (Organization):
DAVID PROULX (R4DO)
NMSS_EVENTS_NOTIFICA (EMAI)
DAVID PROULX (R4DO)
NMSS_EVENTS_NOTIFICA (EMAI)
AGREEMENT STATE REPORT - FIXED GAUGE SHUTTER MALFUNCTION
The following was received from the State of Nevada via email:
"Report of an equipment failure incident to the State of Nevada Radiation Control Program, fixed gauge malfunctioning shutter, Ohmart model SR-A, S/N: 1015GK at the Robinson Mine, Ruth, Nevada phoned in on 01/26/2016 at 1400 [PST].
"The RSO of Robinson Mine reported the shutter malfunction. He called the vendor to come on site and force the shutter closed. They were successful. The gauge was locked out/tagged out, but not removed from the service area in the mill central processing plant. The vendor stated the shutter malfunctioned because the shielding shifted due to process vibrations. The RSO has been instructed to submit a plan for the gauge."
Gauge contained 1.85 MBq of Cs-137.
Item Number: NV160003
The following was received from the State of Nevada via email:
"Report of an equipment failure incident to the State of Nevada Radiation Control Program, fixed gauge malfunctioning shutter, Ohmart model SR-A, S/N: 1015GK at the Robinson Mine, Ruth, Nevada phoned in on 01/26/2016 at 1400 [PST].
"The RSO of Robinson Mine reported the shutter malfunction. He called the vendor to come on site and force the shutter closed. They were successful. The gauge was locked out/tagged out, but not removed from the service area in the mill central processing plant. The vendor stated the shutter malfunctioned because the shielding shifted due to process vibrations. The RSO has been instructed to submit a plan for the gauge."
Gauge contained 1.85 MBq of Cs-137.
Item Number: NV160003