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Licensee's General Comments: none
| Unplanned Scrams per 7000 Critical Hrs | 3Q/06 | 4Q/06 | 1Q/07 | 2Q/07 | 3Q/07 | 4Q/07 | 1Q/08 | 2Q/08 |
| Unplanned scrams | 0 | 0 | 0 | 0 | 0 | 0 | 2.0 | 0 |
| Critical hours | 2208.0 | 1268.0 | 2096.8 | 2184.0 | 2077.1 | 2209.0 | 2098.6 | 1255.6 |
| Indicator value | 0 | 0 | 0 | 0 | 0 | 0 | 1.6 | 1.8 |
Licensee Comments: none
| Unplanned Power Changes per 7000 Critical Hrs | 3Q/06 | 4Q/06 | 1Q/07 | 2Q/07 | 3Q/07 | 4Q/07 | 1Q/08 | 2Q/08 |
| Unplanned power changes | 0 | 1.0 | 0 | 0 | 1.0 | 0 | 0 | 0 |
| Critical hours | 2208.0 | 1268.0 | 2096.8 | 2184.0 | 2077.1 | 2209.0 | 2098.6 | 1255.6 |
| Indicator value | 0.9 | 1.8 | 1.8 | 0.9 | 1.8 | 0.8 | 0.8 | 0.9 |
Licensee Comments: none
| Unplanned Scrams with Complications | 3Q/06 | 4Q/06 | 1Q/07 | 2Q/07 | 3Q/07 | 4Q/07 | 1Q/08 | 2Q/08 |
| Scrams with complications | 0 | 0 | 0 | 0 | 0 | 0 | 0 | |
| Indicator value | 0.0 | 0.0 | 0.0 | 0.0 |
Licensee Comments: none
| Safety System Functional Failures (PWR) | 3Q/06 | 4Q/06 | 1Q/07 | 2Q/07 | 3Q/07 | 4Q/07 | 1Q/08 | 2Q/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:
2Q/08: LER 2008-002, "Safety Injection Isolated in Mode 3 Due to Inadequate Configuration Control"
| Mitigating Systems Performance Index, Emergency AC Power System | 3Q/06 | 4Q/06 | 1Q/07 | 2Q/07 | 3Q/07 | 4Q/07 | 1Q/08 | 2Q/08 |
| UAI (ΔCDF) | 1.90E-09 | 1.10E-08 | 3.50E-09 | 6.20E-09 | 6.60E-09 | 1.70E-09 | 1.70E-09 | 1.60E-09 |
| URI (ΔCDF) | 2.00E-08 | 2.00E-08 | -3.00E-09 | -3.90E-09 | -3.50E-09 | -7.10E-09 | -7.20E-09 | -7.60E-09 |
| PLE | NO | NO | NO | NO | NO | NO | NO | NO |
| Indicator value | 2.19E-08 | 3.10E-08 | 5.00E-10 | 2.30E-09 | 3.10E-09 | -5.40E-09 | -5.50E-09 | -6.00E-09 |
Licensee Comments: none
| Mitigating Systems Performance Index, High Pressure Injection System | 3Q/06 | 4Q/06 | 1Q/07 | 2Q/07 | 3Q/07 | 4Q/07 | 1Q/08 | 2Q/08 |
| UAI (ΔCDF) | -4.60E-09 | -1.80E-09 | -1.80E-09 | -1.80E-09 | -1.60E-09 | 7.60E-11 | 6.90E-11 | 1.10E-10 |
| URI (ΔCDF) | 4.80E-08 | 4.90E-08 | 4.90E-08 | 4.90E-08 | 2.30E-08 | 1.40E-09 | 1.40E-09 | 1.40E-09 |
| PLE | NO | NO | NO | NO | NO | NO | NO | NO |
| Indicator value | 4.34E-08 | 4.72E-08 | 4.72E-08 | 4.72E-08 | 2.14E-08 | 1.48E-09 | 1.47E-09 | 1.51E-09 |
Licensee Comments:
2Q/08: Changed PRA Parameter(s). The opposite-unit pump trains were added to the trains/segments tracked for unavailability due to changes to the PRA model. Also some components were removed from MSPI tracking due to their low safety significance.
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). The unavailability data for August 2006 was revised to remove erroneous unavailability data.
2Q/06: Changed PRA Parameter(s).
| Mitigating Systems Performance Index, Heat Removal System | 3Q/06 | 4Q/06 | 1Q/07 | 2Q/07 | 3Q/07 | 4Q/07 | 1Q/08 | 2Q/08 |
| UAI (ΔCDF) | 2.50E-08 | -5.60E-09 | -3.10E-09 | 9.90E-09 | 7.30E-09 | 5.60E-09 | 8.60E-10 | 4.50E-10 |
| URI (ΔCDF) | 1.60E-07 | 1.60E-07 | 1.60E-07 | 1.60E-07 | 1.60E-07 | 3.80E-08 | 3.80E-08 | 3.80E-08 |
| PLE | NO | NO | NO | NO | NO | NO | NO | NO |
| Indicator value | 1.85E-07 | 1.54E-07 | 1.57E-07 | 1.70E-07 | 1.67E-07 | 4.36E-08 | 3.89E-08 | 3.85E-08 |
Licensee Comments:
2Q/08: Changed PRA Parameter(s). The number of unavailabity trains tracked was changed from 2 to 3, one for each pump, due to changes in the PRA model.
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).
| Mitigating Systems Performance Index, Residual Heat Removal System | 3Q/06 | 4Q/06 | 1Q/07 | 2Q/07 | 3Q/07 | 4Q/07 | 1Q/08 | 2Q/08 |
| UAI (ΔCDF) | -6.90E-11 | -3.80E-11 | -5.20E-11 | -2.70E-11 | 5.60E-10 | 9.50E-10 | -3.50E-11 | -4.70E-10 |
| URI (ΔCDF) | 5.20E-09 | 5.00E-09 | 5.00E-09 | 5.00E-09 | 4.80E-09 | 2.90E-09 | 2.70E-09 | -1.80E-09 |
| PLE | NO | NO | NO | NO | NO | NO | NO | NO |
| Indicator value | 5.13E-09 | 4.96E-09 | 4.95E-09 | 4.97E-09 | 5.36E-09 | 3.85E-09 | 2.67E-09 | -2.27E-09 |
Licensee Comments: none
| Mitigating Systems Performance Index, Cooling Water Systems | 3Q/06 | 4Q/06 | 1Q/07 | 2Q/07 | 3Q/07 | 4Q/07 | 1Q/08 | 2Q/08 |
| UAI (ΔCDF) | 5.00E-08 | 9.40E-08 | 8.50E-08 | 6.40E-08 | 5.10E-08 | 6.00E-10 | 8.00E-10 | 9.90E-10 |
| URI (ΔCDF) | 1.20E-09 | 1.20E-09 | 1.10E-09 | 1.10E-09 | 1.20E-09 | 8.70E-11 | 3.70E-10 | 6.00E-11 |
| PLE | NO | NO | NO | NO | NO | NO | NO | NO |
| Indicator value | 5.12E-08 | 9.52E-08 | 8.61E-08 | 6.51E-08 | 5.22E-08 | 6.87E-10 | 1.17E-09 | 1.05E-09 |
Licensee Comments:
3Q/06: The run time FVURC was changed from 1.36E-05 to 1.35E-05.
| Reactor Coolant System Activity | 7/06 | 8/06 | 9/06 | 10/06 | 11/06 | 12/06 | 1/07 | 2/07 | 3/07 | 4/07 | 5/07 | 6/07 |
| Maximum activity | 0.000671 | 0.000610 | 0.000580 | 0.000641 | N/A | 0.000336 | 0.000305 | 0.000336 | 0.000366 | 0.000397 | 0.000397 | 0.000397 |
| 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 | N/A | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Reactor Coolant System Activity | 7/07 | 8/07 | 9/07 | 10/07 | 11/07 | 12/07 | 1/08 | 2/08 | 3/08 | 4/08 | 5/08 | 6/08 |
| Maximum activity | 0.000427 | 0.000458 | 0.000641 | 0.000641 | 0.000580 | 0.000549 | 0.000710 | 0.000605 | 0.000657 | 0.000005 | 0.000286 | 0.000280 |
| 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 | 0 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0 | 0 | 0 |
Licensee Comments: none
| Reactor Coolant System Leakage | 7/06 | 8/06 | 9/06 | 10/06 | 11/06 | 12/06 | 1/07 | 2/07 | 3/07 | 4/07 | 5/07 | 6/07 |
| Maximum leakage | 0.030 | 0.030 | 0.040 | 0.030 | N/A | 0.060 | 0.060 | 0.050 | 0.070 | 0.050 | 0.050 | 0.050 |
| 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 | 0.3 | 0.3 | 0.4 | 0.3 | N/A | 0.6 | 0.6 | 0.5 | 0.7 | 0.5 | 0.5 | 0.5 |
| Reactor Coolant System Leakage | 7/07 | 8/07 | 9/07 | 10/07 | 11/07 | 12/07 | 1/08 | 2/08 | 3/08 | 4/08 | 5/08 | 6/08 |
| Maximum leakage | 0.050 | 0.040 | 0.040 | 0.040 | 0.050 | 0.080 | 0.080 | 0.060 | 0.060 | N/A | 0.090 | 0.050 |
| 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 | 0.5 | 0.4 | 0.4 | 0.4 | 0.5 | 0.8 | 0.8 | 0.6 | 0.6 | N/A | 0.9 | 0.5 |
Licensee Comments: none
| Drill/Exercise Performance | 3Q/06 | 4Q/06 | 1Q/07 | 2Q/07 | 3Q/07 | 4Q/07 | 1Q/08 | 2Q/08 |
| Successful opportunities | 50.0 | 22.0 | 72.0 | 34.0 | 30.0 | 36.0 | 38.0 | 55.0 |
| Total opportunities | 51.0 | 22.0 | 79.0 | 35.0 | 30.0 | 38.0 | 49.0 | 56.0 |
| Indicator value | 96.7% | 96.9% | 96.1% | 95.9% | 96.3% | 96.2% | 92.8% | 93.6% |
Licensee Comments: none
| ERO Drill Participation | 3Q/06 | 4Q/06 | 1Q/07 | 2Q/07 | 3Q/07 | 4Q/07 | 1Q/08 | 2Q/08 |
| Participating Key personnel | 83.0 | 84.0 | 83.0 | 78.0 | 83.0 | 82.0 | 80.0 | 85.0 |
| Total Key personnel | 84.0 | 84.0 | 83.0 | 79.0 | 83.0 | 82.0 | 80.0 | 85.0 |
| Indicator value | 98.8% | 100.0% | 100.0% | 98.7% | 100.0% | 100.0% | 100.0% | 100.0% |
Licensee Comments: none
| Alert & Notification System | 3Q/06 | 4Q/06 | 1Q/07 | 2Q/07 | 3Q/07 | 4Q/07 | 1Q/08 | 2Q/08 |
| Successful siren-tests | 328 | 374 | 328 | 375 | 328 | 376 | 375 | 328 |
| Total sirens-tests | 329 | 376 | 329 | 376 | 329 | 376 | 376 | 329 |
| Indicator value | 99.8% | 99.7% | 99.7% | 99.6% | 99.6% | 99.8% | 99.8% | 99.8% |
Licensee Comments: none
| Occupational Exposure Control Effectiveness | 3Q/06 | 4Q/06 | 1Q/07 | 2Q/07 | 3Q/07 | 4Q/07 | 1Q/08 | 2Q/08 |
| High radiation area occurrences | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 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 | 0 | 0 | 0 | 0 |
Licensee Comments: none
| RETS/ODCM Radiological Effluent | 3Q/06 | 4Q/06 | 1Q/07 | 2Q/07 | 3Q/07 | 4Q/07 | 1Q/08 | 2Q/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
Action Matrix Summary |
Inspection Findings Summary |
PI Summary |
Reactor Oversight Process
Last Modified: August 4, 2008