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Home > Nuclear Reactors > Operating Reactors > Oversight > Reactor Oversight Process

Wolf Creek 1

3Q/2008 Performance Indicators

Licensee's General Comments: none



Link to Notes

Unplanned Scrams per 7000 Critical Hrs 4Q/06 1Q/07 2Q/07 3Q/07 4Q/07 1Q/08 2Q/08 3Q/08
Unplanned scrams 0 0 0 0 0 1.0 0 0
Critical hours 1405.1 2159.0 2184.0 2208.0 2209.0 1733.8 1150.0 2208.0
                 
Indicator value 0 0 0 0 0 0.8 1.0 1.0


Licensee Comments:

1Q/08: Failed to classify the scram correctly during 1Q08. Corrected in 2Q08.



Link to Notes

Unplanned Power Changes per 7000 Critical Hrs 4Q/06 1Q/07 2Q/07 3Q/07 4Q/07 1Q/08 2Q/08 3Q/08
Unplanned power changes 0 0 0 0 0 1.0 0 0
Critical hours 1405.1 2159.0 2184.0 2208.0 2209.0 1733.8 1150.0 2208.0
                 
Indicator value 0 0 0 0 0 0.8 1.0 1.0

Licensee Comments:

1Q/08: Corrected from scram event to unplanned shutdown





Link to Notes

Unplanned Scrams with Complications 4Q/06 1Q/07 2Q/07 3Q/07 4Q/07 1Q/08 2Q/08 3Q/08
Scrams with complications 0 0 0 0 0 1.0 0 0
                 
                 
Indicator value       0.0 0.0 1.0 1.0 1.0

Licensee Comments: none





Link to Notes

Safety System Functional Failures (PWR) 4Q/06 1Q/07 2Q/07 3Q/07 4Q/07 1Q/08 2Q/08 3Q/08
Safety System Functional Failures 0 0 0 0 0 0 0 1
                 
Indicator value 0 0 0 0 0 0 0 1

Licensee Comments: none





Link to Notes

Mitigating Systems Performance Index, Emergency AC Power System 4Q/06 1Q/07 2Q/07 3Q/07 4Q/07 1Q/08 2Q/08 3Q/08
UAI (ΔCDF) 6.80E-07 6.80E-07 9.00E-07 1.60E-06 1.90E-06 1.40E-06 1.20E-06 1.20E-06
URI (ΔCDF) -2.80E-06 -2.60E-06 -2.40E-06 -2.20E-06 -1.90E-06 -1.50E-06 -6.90E-07 -7.30E-07
PLE NO NO NO NO NO NO NO NO
                 
Indicator value -2.12E-06 -1.92E-06 -1.50E-06 -6.00E-07 0.00E+00 -1.00E-07 5.10E-07 4.70E-07

Licensee Comments:

2Q/06: Notified by INPO on 10/2/06 tha the CDF current value was going to be altered due to data conversion from MSPI calculator to CDE. Calculator allowed an additional decimal place. This conversion altered the CDF value.





Link to Notes

Mitigating Systems Performance Index, High Pressure Injection System 4Q/06 1Q/07 2Q/07 3Q/07 4Q/07 1Q/08 2Q/08 3Q/08
UAI (ΔCDF) 1.20E-07 1.70E-08 1.70E-08 1.70E-08 1.50E-08 1.50E-08 1.70E-08 1.60E-08
URI (ΔCDF) -8.50E-08 -7.90E-08 -8.20E-08 -8.10E-08 -8.10E-08 -8.50E-08 -8.50E-08 -8.50E-08
PLE NO NO NO NO NO NO NO NO
                 
Indicator value 3.50E-08 -6.20E-08 -6.50E-08 -6.40E-08 -6.60E-08 -7.00E-08 -6.80E-08 -6.90E-08

Licensee Comments: none





Link to Notes

Mitigating Systems Performance Index, Heat Removal System 4Q/06 1Q/07 2Q/07 3Q/07 4Q/07 1Q/08 2Q/08 3Q/08
UAI (ΔCDF) 5.90E-08 6.40E-08 6.10E-08 8.10E-08 6.60E-08 5.40E-08 5.40E-08 3.90E-08
URI (ΔCDF) -1.70E-07 -1.70E-07 -1.70E-07 -1.70E-07 -1.60E-07 -1.60E-07 -1.60E-07 -1.60E-07
PLE NO NO NO NO NO NO NO NO
                 
Indicator value -1.11E-07 -1.06E-07 -1.09E-07 -8.90E-08 -9.40E-08 -1.06E-07 -1.06E-07 -1.21E-07

Licensee Comments: none





Link to Notes

Mitigating Systems Performance Index, Residual Heat Removal System 4Q/06 1Q/07 2Q/07 3Q/07 4Q/07 1Q/08 2Q/08 3Q/08
UAI (ΔCDF) 2.10E-07 2.60E-07 2.70E-07 2.60E-07 3.80E-07 3.50E-07 3.60E-07 3.30E-07
URI (ΔCDF) -2.60E-07 -2.70E-07 -2.60E-07 -2.70E-07 -2.60E-07 -3.00E-07 -2.80E-07 -2.90E-07
PLE NO NO NO NO NO NO NO NO
                 
Indicator value -5.00E-08 -1.00E-08 1.00E-08 -1.00E-08 1.20E-07 5.00E-08 8.00E-08 4.00E-08

Licensee Comments: none





Link to Notes

Mitigating Systems Performance Index, Cooling Water Systems 4Q/06 1Q/07 2Q/07 3Q/07 4Q/07 1Q/08 2Q/08 3Q/08
UAI (ΔCDF) -3.50E-08 2.00E-07 3.20E-07 3.70E-07 2.40E-07 1.20E-07 5.40E-07 7.80E-07
URI (ΔCDF) -7.50E-07 -7.30E-07 -7.30E-07 -7.30E-07 -7.20E-07 -7.40E-07 -7.30E-07 -7.30E-07
PLE NO NO NO NO NO NO NO NO
                 
Indicator value -7.85E-07 -5.30E-07 -4.10E-07 -3.60E-07 -4.80E-07 -6.20E-07 -1.90E-07 5.00E-08

Licensee Comments:

3Q/08: Changed PRA Parameter(s).

2Q/08: Changed PRA Parameter(s).

1Q/08: Changed PRA Parameter(s).

4Q/07: Changed PRA Parameter(s).

3Q/07: Changed PRA Parameter(s).

2Q/07: Changed PRA Parameter(s).

1Q/07: Changed PRA Parameter(s).

4Q/06: Changed PRA Parameter(s).

3Q/06: Changed PRA Parameter(s).

2Q/06: Changed PRA Parameter(s).





Link to Notes

Reactor Coolant System Activity 10/06 11/06 12/06 1/07 2/07 3/07 4/07 5/07 6/07 7/07 8/07 9/07
Maximum activity 0.000800 0.000300 0.000300 0.000400 0.000400 0.000500 0.000600 0.000400 0.000500 0.000600 0.000700 0.000600
Technical specification limit 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0
                         
Indicator value 0.1 0 0 0 0 0.1 0.1 0 0.1 0.1 0.1 0.1
Reactor Coolant System Activity 10/07 11/07 12/07 1/08 2/08 3/08 4/08 5/08 6/08 7/08 8/08 9/08
Maximum activity 0.000700 0.000800 0.000600 0.000700 0.000700 0.000800 N/A 0.000300 0.000300 0.000700 0.000300 0.000300
Technical specification limit 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0
                         
Indicator value 0.1 0.1 0.1 0.1 0.1 0.1 N/A 0 0 0.1 0 0

Licensee Comments: none





Link to Notes

Reactor Coolant System Leakage 10/06 11/06 12/06 1/07 2/07 3/07 4/07 5/07 6/07 7/07 8/07 9/07
Maximum leakage 0.230 0.170 0.100 0.100 0.100 0.100 0.100 0.110 0.110 0.110 0.120 0.100
Technical specification limit 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0
                         
Indicator value 2.3 1.7 1.0 1.0 1.0 1.0 1.0 1.1 1.1 1.1 1.2 1.0
Reactor Coolant System Leakage 10/07 11/07 12/07 1/08 2/08 3/08 4/08 5/08 6/08 7/08 8/08 9/08
Maximum leakage 0.110 0.100 0.080 0.110 0.090 0.090 N/A 0.150 0.150 0.150 0.170 0.150
Technical specification limit 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0
                         
Indicator value 1.1 1.0 0.8 1.1 0.9 0.9 N/A 1.5 1.5 1.5 1.7 1.5

Licensee Comments: none





Link to Notes

Drill/Exercise Performance 4Q/06 1Q/07 2Q/07 3Q/07 4Q/07 1Q/08 2Q/08 3Q/08
Successful opportunities 39.0 21.0 39.0 41.0 75.0 22.0 2.0 49.0
Total opportunities 39.0 22.0 43.0 45.0 80.0 22.0 2.0 56.0
                 
Indicator value 94.7% 95.3% 94.8% 93.7% 93.3% 93.9% 93.5% 93.2%

Licensee Comments: none





Link to Notes

ERO Drill Participation 4Q/06 1Q/07 2Q/07 3Q/07 4Q/07 1Q/08 2Q/08 3Q/08
Participating Key personnel 70.0 69.0 68.0 68.0 67.0 68.0 62.0 65.0
Total Key personnel 70.0 69.0 68.0 68.0 67.0 68.0 62.0 65.0
                 
Indicator value 100.0% 100.0% 100.0% 100.0% 100.0% 100.0% 100.0% 100.0%

Licensee Comments: none





Link to Notes

Alert & Notification System 4Q/06 1Q/07 2Q/07 3Q/07 4Q/07 1Q/08 2Q/08 3Q/08
Successful siren-tests 64 74 66 76 65 76 64 65
Total sirens-tests 66 77 66 77 66 77 66 66
                 
Indicator value 96.9% 96.9% 97.9% 97.9% 98.3% 99.0% 98.3% 98.2%

Licensee Comments: none





Link to Notes

Occupational Exposure Control Effectiveness 4Q/06 1Q/07 2Q/07 3Q/07 4Q/07 1Q/08 2Q/08 3Q/08
High radiation area occurrences 0 0 0 0 1 0 0 1
Very high radiation area occurrences 0 0 0 0 0 0 0 0
Unintended exposure occurrences 0 0 0 0 0 0 0 0
Indicator value 0 0 0 0 1 1 1 2

Licensee Comments: none





Link to Notes

RETS/ODCM Radiological Effluent 4Q/06 1Q/07 2Q/07 3Q/07 4Q/07 1Q/08 2Q/08 3Q/08
RETS/ODCM occurrences 0 0 0 0 0 0 0 0
                 
Indicator value 0 0 0 0 0 0 0 0

Licensee Comments: none





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Last Modified: November 26, 2008