Event Notification Report for March 21, 2001
U.S. Nuclear Regulatory Commission
Operations Center
EVENT REPORTS FOR
03/20/2001 - 03/21/2001
General Information or Other
Event Number: 37859
Rep Org: COGEMA MINING, INC.
Licensee: COGEMA MINING, INC.
Region: 4
City: LINCH State: WY
County:
License #: SUA-1341
Agreement: N
Docket:
NRC Notified By: JOHN VASELIN
HQ OPS Officer: FANGIE JONES
Licensee: COGEMA MINING, INC.
Region: 4
City: LINCH State: WY
County:
License #: SUA-1341
Agreement: N
Docket:
NRC Notified By: JOHN VASELIN
HQ OPS Officer: FANGIE JONES
Notification Date: 03/22/2001
Notification Time: 16:54 [ET]
Event Date: 03/21/2001
Event Time: 00:00 [MST]
Last Update Date: 03/22/2001
Notification Time: 16:54 [ET]
Event Date: 03/21/2001
Event Time: 00:00 [MST]
Last Update Date: 03/22/2001
Emergency Class: NON EMERGENCY
10 CFR Section:
10 CFR Section:
Person (Organization):
JOHN PELLET (R4)
JOHN HICKEY (NMSS)
MICHAEL LAYTON (NMSS)
JOHN PELLET (R4)
JOHN HICKEY (NMSS)
MICHAEL LAYTON (NMSS)
CONDITION OF LICENSE REPORT INVOLVING MINE IN EXCURSION STATUS
The following is taken from a faxed report:
Notification of a Reportable Event per License Section 11.2
Reported Event:
A routine monthly water sample collected on March 21, 2001 from monitor well 5MW43, exceeded 2 of its 3 upper control limits (UCLs). A confirmation sample was collected March 22, which also exceeded 2 UCLs. Monitor well 5MW43 was then placed on excursion status as per license Section 11.2 and its sampling frequency increased to weekly. 5MW43 is a perimeter ore zone monitor well located approximately 300 feet south of the Mine Unit 5 boundary at the Christensen Mine, Campbell County Wyoming. Note that Mine Unit 5 is currently in groundwater restoration and that the nearest community is Linch, Wyoming approximately 16 miles to the southeast.
Analysis Data:
Conductivity Uranium
Date Chloride mg/l umhos/cm2 Alkalinity mg/I mg/l U308
Sampled UCL 22.7 UCL 1004 UCL 134.3 no UCL
3-21-01 7.5 1116 163.0 <0.4
3-22-01 7.4 1133 169.0 <0.4
Health and Environmental Hazards:
None
Investigative Action:
Collect additional samples from this well to further evaluate the water quality. Since the chloride concentration remains near its baseline level, it is felt that this is not an actual excursion from the Mine Unit.
Written Notification:
A written notification with further information will be submitted to NRC Fuel Cycle Licensing Branch Chief within 7 days.
The following is taken from a faxed report:
Notification of a Reportable Event per License Section 11.2
Reported Event:
A routine monthly water sample collected on March 21, 2001 from monitor well 5MW43, exceeded 2 of its 3 upper control limits (UCLs). A confirmation sample was collected March 22, which also exceeded 2 UCLs. Monitor well 5MW43 was then placed on excursion status as per license Section 11.2 and its sampling frequency increased to weekly. 5MW43 is a perimeter ore zone monitor well located approximately 300 feet south of the Mine Unit 5 boundary at the Christensen Mine, Campbell County Wyoming. Note that Mine Unit 5 is currently in groundwater restoration and that the nearest community is Linch, Wyoming approximately 16 miles to the southeast.
Analysis Data:
Conductivity Uranium
Date Chloride mg/l umhos/cm2 Alkalinity mg/I mg/l U308
Sampled UCL 22.7 UCL 1004 UCL 134.3 no UCL
3-21-01 7.5 1116 163.0 <0.4
3-22-01 7.4 1133 169.0 <0.4
Health and Environmental Hazards:
None
Investigative Action:
Collect additional samples from this well to further evaluate the water quality. Since the chloride concentration remains near its baseline level, it is felt that this is not an actual excursion from the Mine Unit.
Written Notification:
A written notification with further information will be submitted to NRC Fuel Cycle Licensing Branch Chief within 7 days.
Power Reactor
Event Number: 37855
Facility: FERMI
Region: 3 State: MI
Unit: [2] [] []
RX Type: [2] GE-4
NRC Notified By: PATRICK FALLON
HQ OPS Officer: DOUG WEAVER
Region: 3 State: MI
Unit: [2] [] []
RX Type: [2] GE-4
NRC Notified By: PATRICK FALLON
HQ OPS Officer: DOUG WEAVER
Notification Date: 03/21/2001
Notification Time: 23:10 [ET]
Event Date: 03/21/2001
Event Time: 22:45 [EST]
Last Update Date: 03/21/2001
Notification Time: 23:10 [ET]
Event Date: 03/21/2001
Event Time: 22:45 [EST]
Last Update Date: 03/21/2001
Emergency Class: ALERT
10 CFR Section:
50.72(a) (1) (i) - EMERGENCY DECLARED
10 CFR Section:
50.72(a) (1) (i) - EMERGENCY DECLARED
Person (Organization):
GARY SHEAR (R3)
DAVID MATTHEWS (NRR)
NADER MAMISH (IRO)
HENRY BAILEY (RCT)
CHARLIE MILLER (IRO)
GARY SHEAR (R3)
DAVID MATTHEWS (NRR)
NADER MAMISH (IRO)
HENRY BAILEY (RCT)
CHARLIE MILLER (IRO)
| Unit | SCRAM Code | RX Crit | Initial PWR | Initial RX Mode | Current PWR | Current RX Mode |
|---|---|---|---|---|---|---|
| 2 | N | Y | 100 | Power Operation | 100 | Power Operation |
ALERT DECLARED - SMALL FIRE ON AN EMERGENCY DIESEL BEARING COVER
The licensee declared an Alert when paint on the outboard generator bearing cover of the #14 EDG caught fire. The fire was put out in less than one minute with a portable CO2 extinguisher. The fire occurred at 2211 and the Alert was declared retroactively at 2245. It was also terminated at 2245. All other emergency equipment is operable. The plant continued to operate at 100 percent power throughout the event.
The licensee notified the NRC resident inspector, Monroe County, Wayne County, the Province of Ontario and the State of Michigan. The Operations Center made the following additional notifications.
CANADA - PERREAULT, OIP - BRESKOVIC, OPA - BEECHER
The licensee declared an Alert when paint on the outboard generator bearing cover of the #14 EDG caught fire. The fire was put out in less than one minute with a portable CO2 extinguisher. The fire occurred at 2211 and the Alert was declared retroactively at 2245. It was also terminated at 2245. All other emergency equipment is operable. The plant continued to operate at 100 percent power throughout the event.
The licensee notified the NRC resident inspector, Monroe County, Wayne County, the Province of Ontario and the State of Michigan. The Operations Center made the following additional notifications.
CANADA - PERREAULT, OIP - BRESKOVIC, OPA - BEECHER
!!!!! THIS EVENT HAS BEEN RETRACTED !!!!!
!!!!! THIS EVENT HAS BEEN RETRACTED !!!!!
Power Reactor
Event Number: 37856
Facility: MONTICELLO
Region: 3 State: MN
Unit: [1] [] []
RX Type: [1] GE-3
NRC Notified By: DUSTIN WRIGHT
HQ OPS Officer: STEVE SANDIN
Region: 3 State: MN
Unit: [1] [] []
RX Type: [1] GE-3
NRC Notified By: DUSTIN WRIGHT
HQ OPS Officer: STEVE SANDIN
Notification Date: 03/22/2001
Notification Time: 02:16 [ET]
Event Date: 03/21/2001
Event Time: 21:30 [CST]
Last Update Date: 04/23/2001
Notification Time: 02:16 [ET]
Event Date: 03/21/2001
Event Time: 21:30 [CST]
Last Update Date: 04/23/2001
Emergency Class: NON EMERGENCY
10 CFR Section:
50.72(b)(3)(ii)(B) - UNANALYZED CONDITION
10 CFR Section:
50.72(b)(3)(ii)(B) - UNANALYZED CONDITION
Person (Organization):
GARY SHEAR (R3)
GARY SHEAR (R3)
| Unit | SCRAM Code | RX Crit | Initial PWR | Initial RX Mode | Current PWR | Current RX Mode |
|---|---|---|---|---|---|---|
| 1 | N | N | 0 | Cold Shutdown | 0 | Cold Shutdown |
DRYWELL TO TORUS BYPASS LEAKAGE NOT REEVALUATED FOR POWER RERATE
"An unanalyzed plant condition may exist due to Drywell to Torus bypass leakage as defined in Tech Spec Bases 3.7.A was not reevaluated for power rerate. The original evaluation determined that the maximum allowable leakage capacity was 0.12 square feet. When power rerate was being evaluated, General Electric assumed that Monticello was bound by a generic evaluation for the drywell to torus allowable capacity of an 0.01 square feet."
Corrective action includes a reevaluation, as appropriate. The licensee informed the NRC resident inspector.
* * RETRACTION ON 04/23/01 AT 1805 ET BY JIM MCKAY TAKEN BY MACKINNON.
Retraction of notification made on March 22, 2001. The notification stated that an unanalyzed plant condition may exist due to a drywell to torus vacuum breaker bypass leakage [which] was not re-evaluated for power rerate. Upon further revaluation conducted by General Electric Company and based on a review of the original analysis, the bounding assumptions used to calculate the maximum allowable bypass leakage area was effectively independent of reactor power and are, therefore, not adversely impacted by power rerate. As such, an unanalyzed condition does not exist.
R3DO (Tom Kozak) notified.
NRC Resident Inspector will be notified of this retraction by the licensee.
"An unanalyzed plant condition may exist due to Drywell to Torus bypass leakage as defined in Tech Spec Bases 3.7.A was not reevaluated for power rerate. The original evaluation determined that the maximum allowable leakage capacity was 0.12 square feet. When power rerate was being evaluated, General Electric assumed that Monticello was bound by a generic evaluation for the drywell to torus allowable capacity of an 0.01 square feet."
Corrective action includes a reevaluation, as appropriate. The licensee informed the NRC resident inspector.
* * RETRACTION ON 04/23/01 AT 1805 ET BY JIM MCKAY TAKEN BY MACKINNON.
Retraction of notification made on March 22, 2001. The notification stated that an unanalyzed plant condition may exist due to a drywell to torus vacuum breaker bypass leakage [which] was not re-evaluated for power rerate. Upon further revaluation conducted by General Electric Company and based on a review of the original analysis, the bounding assumptions used to calculate the maximum allowable bypass leakage area was effectively independent of reactor power and are, therefore, not adversely impacted by power rerate. As such, an unanalyzed condition does not exist.
R3DO (Tom Kozak) notified.
NRC Resident Inspector will be notified of this retraction by the licensee.