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Licensee's General Comments: Revision 002 of the Callaway Plant MSPI Basis Document was issued on June 26, 2008, reflecting revised planned baseline unavailability factors for all MSPI systems. Revised data is effective for MSPI calculations in the third quarter 2008.
| 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 | 1.0 | 0 | 0 | 0 | 0 | 0 |
| Critical hours | 2208.0 | 2209.0 | 2081.3 | 1314.3 | 2208.0 | 2209.0 | 2183.0 | 2184.0 |
| Indicator value | 1.0 | 0.8 | 1.7 | 0.9 | 0.9 | 0.9 | 0 | 0 |
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 | 0 | 1.0 | 0 | 0 | 0 | 1.0 | 0 |
| Critical hours | 2208.0 | 2209.0 | 2081.3 | 1314.3 | 2208.0 | 2209.0 | 2183.0 | 2184.0 |
| Indicator value | 1.0 | 0.8 | 1.7 | 0.9 | 0.9 | 0.9 | 0.9 | 0.8 |
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 | 1 | 2 | 0 | 0 | 0 | 0 | 0 | 0 |
| Indicator value | 2 | 4 | 4 | 3 | 2 | 0 | 0 | 0 |
Licensee Comments: none
| 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) | 6.00E-07 | 8.00E-07 | 4.50E-07 | 3.40E-07 | 3.90E-07 | 5.10E-07 | 5.30E-07 | 7.00E-07 |
| URI (ΔCDF) | -6.10E-07 | -6.10E-07 | -1.10E-06 | -2.70E-06 | -2.70E-06 | -2.70E-06 | -2.70E-06 | -2.70E-06 |
| PLE | NO | NO | NO | NO | NO | NO | NO | NO |
| Indicator value | -1.00E-08 | 1.90E-07 | -6.50E-07 | -2.36E-06 | -2.31E-06 | -2.19E-06 | -2.17E-06 | -2.00E-06 |
Licensee Comments:
2Q/08: Revision 002 of the Callaway Plant MSPI Basis Document was issued on June 26, 2008, reflecting revised planned baseline unavailability factors for all MSPI systems. Revised data is effective for MSPI calculations in the third quarter 2008.
| 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) | -4.70E-09 | -4.70E-09 | -4.70E-09 | -4.70E-09 | -4.70E-09 | -4.60E-09 | -4.40E-09 | -4.70E-09 |
| URI (ΔCDF) | -2.80E-08 | -2.80E-08 | -2.80E-08 | -2.80E-08 | -2.80E-08 | -2.80E-08 | -2.80E-08 | -2.90E-08 |
| PLE | NO | NO | NO | NO | NO | NO | NO | NO |
| Indicator value | -3.27E-08 | -3.27E-08 | -3.27E-08 | -3.27E-08 | -3.27E-08 | -3.26E-08 | -3.24E-08 | -3.37E-08 |
Licensee Comments:
2Q/08: Revision 002 of the Callaway Plant MSPI Basis Document was issued on June 26, 2008, reflecting revised planned baseline unavailability factors for all MSPI systems. Revised data is effective for MSPI calculations in the third quarter 2008.
| 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) | 4.50E-07 | 4.40E-07 | 4.20E-07 | 4.10E-07 | 1.70E-07 | -1.90E-08 | 6.00E-08 | -5.00E-08 |
| URI (ΔCDF) | 7.70E-07 | 7.70E-07 | 3.30E-07 | 3.30E-07 | 3.00E-07 | -1.00E-06 | -1.10E-06 | -1.10E-06 |
| PLE | NO | NO | NO | NO | NO | NO | NO | NO |
| Indicator value | 1.22E-06 | 1.21E-06 | 7.50E-07 | 7.40E-07 | 4.70E-07 | -1.02E-06 | -1.04E-06 | -1.15E-06 |
Licensee Comments:
2Q/08: Revision 002 of the Callaway Plant MSPI Basis Document was issued on June 26, 2008, reflecting revised planned baseline unavailability factors for all MSPI systems. Revised data is effective for MSPI calculations in the third quarter 2008.
| 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) | -5.30E-09 | -6.90E-09 | -2.20E-08 | -2.30E-08 | -2.30E-08 | -1.30E-08 | -1.80E-08 | -1.80E-08 |
| URI (ΔCDF) | -2.20E-07 | -2.20E-07 | -2.20E-07 | -2.20E-07 | -2.20E-07 | -2.20E-07 | -2.20E-07 | -2.10E-07 |
| PLE | NO | NO | NO | NO | NO | NO | NO | NO |
| Indicator value | -2.25E-07 | -2.27E-07 | -2.42E-07 | -2.43E-07 | -2.43E-07 | -2.33E-07 | -2.38E-07 | -2.28E-07 |
Licensee Comments:
2Q/08: Revision 002 of the Callaway Plant MSPI Basis Document was issued on June 26, 2008, reflecting revised planned baseline unavailability factors for all MSPI systems. Revised data is effective for MSPI calculations in the third quarter 2008.
| 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) | 8.50E-07 | 5.90E-07 | 8.00E-07 | 4.00E-07 | 3.50E-07 | -6.30E-08 | -6.00E-07 | -5.90E-07 |
| URI (ΔCDF) | -6.10E-07 | -6.50E-07 | -6.50E-07 | -1.10E-06 | -1.10E-06 | -1.10E-06 | -1.20E-06 | -1.20E-06 |
| PLE | NO | NO | NO | NO | NO | NO | NO | NO |
| Indicator value | 2.40E-07 | -6.00E-08 | 1.50E-07 | -7.00E-07 | -7.50E-07 | -1.16E-06 | -1.80E-06 | -1.79E-06 |
Licensee Comments:
2Q/08: Revision 002 of the Callaway Plant MSPI Basis Document was issued on June 26, 2008, reflecting revised planned baseline unavailability factors for all MSPI systems. Revised data is effective for MSPI calculations in the third quarter 2008.
| 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 | 0.000627 | 0.000645 | 0.000643 | 0.000654 | 0.000675 | 0.000670 | 0.000978 | 0.000831 | 0.001050 | N/A | 0.002530 | 0.002730 |
| 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 | 0.1 | 0.1 | 0.1 | N/A | 0.3 | 0.3 |
| 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 | 0.002440 | 0.002240 | 0.008790 | 0.005370 | 0.003410 | 0.004370 | 0.005010 | 0.005510 | 0.006980 | 0.014900 | 0.022600 | 0.018500 |
| 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 | 0.2 | 0.2 | 0.9 | 0.5 | 0.3 | 0.4 | 0.5 | 0.6 | 0.7 | 1.5 | 2.3 | 1.9 |
Licensee Comments:
6/08: These maximum values for DEI for each month of the quarter are elevated above the typical DEI value of approx. 0.007 micro curies / gm due to reduction or isolation of CVCS L/D, and the current fuel defect.
| 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 | 0.012 | 0.016 | 0.023 | 0.028 | 0.013 | 0.014 | 0.016 | 0.025 | 0.037 | N/A | 0.016 | 0.013 |
| 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 | 0.1 | 0.2 | 0.2 | 0.3 | 0.1 | 0.1 | 0.2 | 0.3 | 0.4 | N/A | 0.2 | 0.1 |
| 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 | 0.013 | 0.013 | 0.105 | 0.007 | 0.018 | 0.025 | 0.019 | 0.021 | 0.027 | 0.036 | 0.028 | 0.019 |
| 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 | 0.1 | 0.1 | 1.1 | 0.1 | 0.2 | 0.3 | 0.2 | 0.2 | 0.3 | 0.4 | 0.3 | 0.2 |
Licensee Comments: none
| Drill/Exercise Performance | 3Q/06 | 4Q/06 | 1Q/07 | 2Q/07 | 3Q/07 | 4Q/07 | 1Q/08 | 2Q/08 |
| Successful opportunities | 27.0 | 31.0 | 18.0 | 14.0 | 47.0 | 16.0 | 52.0 | 64.0 |
| Total opportunities | 30.0 | 32.0 | 18.0 | 14.0 | 52.0 | 17.0 | 52.0 | 66.0 |
| Indicator value | 96.4% | 96.2% | 97.0% | 97.2% | 95.1% | 95.0% | 95.3% | 95.7% |
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 | 93.0 | 99.0 | 105.0 | 103.0 | 103.0 | 107.0 | 100.0 | 100.0 |
| Total Key personnel | 97.0 | 103.0 | 108.0 | 108.0 | 105.0 | 107.0 | 100.0 | 100.0 |
| Indicator value | 95.9% | 96.1% | 97.2% | 95.4% | 98.1% | 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 | 377 | 377 | 377 | 377 | 377 | 377 | 377 | 374 |
| Total sirens-tests | 377 | 377 | 377 | 377 | 377 | 377 | 377 | 377 |
| Indicator value | 99.7% | 99.9% | 99.9% | 100.0% | 100.0% | 100.0% | 100.0% | 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