Fort Calhoun
2Q/2012 Performance Indicators
Fort Calhoun has been shutdown since April 2011. Because the Unplanned Scrams with Complications (USwC) and Mitigating Systems Performance Index (MSPI) performance indicators (PIs) are heavily influenced by the operational status of the reactor, NRC staff has evaluated the validity of these PIs. Because the reactor has not been critical, there have been no recent opportunities for a scram that would count in the USwC indicator. Similarly, the MSPI values can become skewed because of a lack of critical hours. For these reasons, the staff has determined that these PIs no longer provide valid indications of performance.
Licensee's General Comments: none
| Unplanned Scrams per 7000 Critical Hrs | 3Q/10 | 4Q/10 | 1Q/11 | 2Q/11 | 3Q/11 | 4Q/11 | 1Q/12 | 2Q/12 |
| Unplanned scrams | 0 | 1.0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Critical hours | 2208.0 | 2160.0 | 2135.4 | 215.8 | 0 | 0 | 0 | 0 |
| Indicator value | 0 | 0.8 | 0.8 | 1.0 | 1.6 | N/A | N/A | N/A |
Licensee Comments: none
| Unplanned Power Changes per 7000 Critical Hrs | 3Q/10 | 4Q/10 | 1Q/11 | 2Q/11 | 3Q/11 | 4Q/11 | 1Q/12 | 2Q/12 |
| Unplanned power changes | 0 | 1.0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Critical hours | 2208.0 | 2160.0 | 2135.4 | 215.8 | 0 | 0 | 0 | 0 |
| Indicator value | 1.9 | 1.6 | 1.6 | 1.0 | 1.6 | N/A | N/A | N/A |
Licensee Comments: none
| Unplanned Scrams with Complications | 3Q/10 | 4Q/10 | 1Q/11 | 2Q/11 | 3Q/11 | 4Q/11 | 1Q/12 | 2Q/12 |
| Scrams with complications | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Indicator value | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
Licensee Comments: none
| Safety System Functional Failures (PWR) | 3Q/10 | 4Q/10 | 1Q/11 | 2Q/11 | 3Q/11 | 4Q/11 | 1Q/12 | 2Q/12 |
| Safety System Functional Failures | 1 | 0 | 1 | 1 | 1 | 0 | 1 | 3 |
| Indicator value | 1 | 1 | 2 | 3 | 3 | 3 | 3 | 5 |
Licensee Comments:
2Q/12: LER 2012-001, Inadequate Flooding Protection Procedure; LER 2012-005, TS violation due to inadequate testing of DG fuel pumps; LER 2012-004, Inadequate Analysis of Drift Affects Safety Related Equipment
1Q/12: LER 2011-010, "Fire Causes a Circuit Breaker to Open Outside Design Assumptions" was issued January 2012 and LER 2011-006, "Inoperability of Both Trains of Containment Coolers Due to a Mispositioned Valve" was cancelled removing the item from earlier reporting.
3Q/11: The following information is being provided to correct an oversight in the original submittals. LER 2011-003, "Inadequate Flooding Protection Due To Ineffective Oversight," effective first quarter 2011. LER 2011-004, "Isolation of Both Trains of Safety Related Auxiliary Feedwater," effective second quarter 2011. LER 2011-006, "Inoperability of Both Trains of Containment Coolers Due to a Mispositioned Valve,"effective second quarter 2011. LER 2011-008, "Fire in Safety Related 480 Volt Electrical Bus" effective third quarter 2011.
1Q/11: LER 2011-001 "Inadequate Flooding Protection Due To Ineffective Oversight"
3Q/10: LER 2010-003, "Inadequate Margin Renders Auxiliary Feedwater Pump Inoperable"
| Mitigating Systems Performance Index, Emergency AC Power System | 3Q/10 | 4Q/10 | 1Q/11 | 2Q/11 | 3Q/11 | 4Q/11 | 1Q/12 | 2Q/12 |
| UAI (ΔCDF) | 1.93E-07 | 1.76E-07 | 1.89E-08 | 4.38E-08 | 1.14E-07 | 2.86E-07 | 3.94E-07 | 3.09E-07 |
| URI (ΔCDF) | -1.13E-06 | -1.11E-06 | -1.01E-06 | -9.90E-07 | -9.27E-07 | -8.99E-07 | -4.62E-07 | -4.38E-07 |
| PLE | NO | NO | NO | NO | NO | NO | NO | NO |
| Indicator value | -9.40E-07 | -9.40E-07 | -1.00E-06 | -9.50E-07 | -8.10E-07 | -6.10E-07 | -6.80E-08 | -1.30E-07 |
Licensee Comments:
2Q/12: Risk Cap Invoked.
1Q/12: Risk Cap Invoked.
| Mitigating Systems Performance Index, High Pressure Injection System | 3Q/10 | 4Q/10 | 1Q/11 | 2Q/11 | 3Q/11 | 4Q/11 | 1Q/12 | 2Q/12 |
| UAI (ΔCDF) | -8.92E-08 | -8.90E-08 | -8.65E-08 | -6.91E-08 | -7.33E-08 | -7.07E-08 | -7.03E-08 | -5.54E-08 |
| URI (ΔCDF) | -8.46E-08 | -9.21E-08 | -9.22E-08 | -9.10E-08 | -9.02E-08 | -8.96E-08 | -8.93E-08 | -8.89E-08 |
| PLE | NO | NO | NO | NO | NO | NO | NO | NO |
| Indicator value | -1.70E-07 | -1.80E-07 | -1.80E-07 | -1.60E-07 | -1.60E-07 | -1.60E-07 | -1.60E-07 | -1.40E-07 |
Licensee Comments: none
| Mitigating Systems Performance Index, Heat Removal System | 3Q/10 | 4Q/10 | 1Q/11 | 2Q/11 | 3Q/11 | 4Q/11 | 1Q/12 | 2Q/12 |
| UAI (ΔCDF) | -1.38E-09 | -6.39E-09 | -3.49E-08 | -3.47E-08 | -2.78E-08 | -1.58E-08 | -3.05E-08 | -7.37E-08 |
| URI (ΔCDF) | 6.47E-07 | 6.57E-07 | 6.77E-07 | 7.49E-07 | 7.95E-07 | 8.54E-07 | 5.92E-07 | 2.55E-07 |
| PLE | NO | NO | NO | NO | NO | NO | NO | NO |
| Indicator value | 6.50E-07 | 6.50E-07 | 6.40E-07 | 7.10E-07 | 7.70E-07 | 8.40E-07 | 5.60E-07 | 1.80E-07 |
Licensee Comments: none
| Mitigating Systems Performance Index, Residual Heat Removal System | 3Q/10 | 4Q/10 | 1Q/11 | 2Q/11 | 3Q/11 | 4Q/11 | 1Q/12 | 2Q/12 |
| UAI (ΔCDF) | -8.67E-08 | -8.65E-08 | -5.36E-08 | 3.84E-09 | -1.48E-07 | -1.45E-07 | -1.43E-07 | -1.39E-07 |
| URI (ΔCDF) | -6.45E-08 | -6.48E-08 | -6.51E-08 | -6.62E-08 | -6.70E-08 | -6.95E-08 | -6.99E-08 | -7.22E-08 |
| PLE | NO | NO | NO | NO | NO | NO | NO | NO |
| Indicator value | -1.50E-07 | -1.50E-07 | -1.20E-07 | -6.20E-08 | -2.10E-07 | -2.10E-07 | -2.10E-07 | -2.10E-07 |
Licensee Comments: none
| Mitigating Systems Performance Index, Cooling Water Systems | 3Q/10 | 4Q/10 | 1Q/11 | 2Q/11 | 3Q/11 | 4Q/11 | 1Q/12 | 2Q/12 |
| UAI (ΔCDF) | -3.14E-07 | -2.95E-07 | -3.52E-07 | -3.53E-07 | -3.17E-07 | -3.09E-07 | -2.85E-07 | -2.46E-07 |
| URI (ΔCDF) | 4.96E-09 | -1.98E-08 | -4.71E-08 | -4.64E-08 | -4.60E-08 | -4.55E-08 | -4.51E-08 | -4.45E-08 |
| PLE | NO | NO | NO | NO | NO | NO | NO | NO |
| Indicator value | -3.10E-07 | -3.10E-07 | -4.00E-07 | -4.00E-07 | -3.60E-07 | -3.50E-07 | -3.30E-07 | -2.90E-07 |
Licensee Comments: none
| Reactor Coolant System Activity | 7/10 | 8/10 | 9/10 | 10/10 | 11/10 | 12/10 | 1/11 | 2/11 | 3/11 | 4/11 | 5/11 | 6/11 |
| Maximum activity | 0.001780 | 0.001950 | 0.001990 | 0.001960 | 0.002010 | 0.002140 | 0.002140 | 0.002110 | 0.002290 | 0.002090 | N/A | N/A |
| 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 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | N/A | N/A |
| Reactor Coolant System Activity | 7/11 | 8/11 | 9/11 | 10/11 | 11/11 | 12/11 | 1/12 | 2/12 | 3/12 | 4/12 | 5/12 | 6/12 |
| Maximum activity | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A |
| 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 | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A |
Licensee Comments: none
| Reactor Coolant System Leakage | 7/10 | 8/10 | 9/10 | 10/10 | 11/10 | 12/10 | 1/11 | 2/11 | 3/11 | 4/11 | 5/11 | 6/11 |
| Maximum leakage | 0.213 | 0.277 | 0.386 | 0.284 | 0.248 | 0.245 | 0.231 | 0.336 | 0.286 | 0.196 | N/A | N/A |
| 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 | 2.1 | 2.8 | 3.9 | 2.8 | 2.5 | 2.5 | 2.3 | 3.4 | 2.9 | 2.0 | N/A | N/A |
| Reactor Coolant System Leakage | 7/11 | 8/11 | 9/11 | 10/11 | 11/11 | 12/11 | 1/12 | 2/12 | 3/12 | 4/12 | 5/12 | 6/12 |
| Maximum leakage | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A |
| 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 | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A |
Licensee Comments: none
| Drill/Exercise Performance | 3Q/10 | 4Q/10 | 1Q/11 | 2Q/11 | 3Q/11 | 4Q/11 | 1Q/12 | 2Q/12 |
| Successful opportunities | 73.0 | 49.0 | 61.0 | 11.0 | 33.0 | 12.0 | 59.0 | 41.0 |
| Total opportunities | 73.0 | 50.0 | 62.0 | 13.0 | 36.0 | 12.0 | 62.0 | 43.0 |
| Indicator value | 98.1% | 97.7% | 97.5% | 96.7% | 96.3% | 96.4% | 96.5% | 96.6% |
Licensee Comments: none
| ERO Drill Participation | 3Q/10 | 4Q/10 | 1Q/11 | 2Q/11 | 3Q/11 | 4Q/11 | 1Q/12 | 2Q/12 |
| Participating Key personnel | 122.0 | 118.0 | 123.0 | 124.0 | 118.0 | 107.0 | 102.0 | 107.0 |
| Total Key personnel | 122.0 | 118.0 | 124.0 | 124.0 | 119.0 | 108.0 | 103.0 | 108.0 |
| Indicator value | 100.0% | 100.0% | 99.2% | 100.0% | 99.2% | 99.1% | 99.0% | 99.1% |
Licensee Comments: none
| Alert & Notification System | 3Q/10 | 4Q/10 | 1Q/11 | 2Q/11 | 3Q/11 | 4Q/11 | 1Q/12 | 2Q/12 |
| Successful siren-tests | 804 | 808 | 707 | 801 | 737 | 876 | 704 | 806 |
| Total sirens-tests | 808 | 808 | 707 | 802 | 737 | 878 | 705 | 808 |
| Indicator value | 99.6% | 99.6% | 99.7% | 99.8% | 100.0% | 99.9% | 99.9% | 99.8% |
Licensee Comments: none
| Occupational Exposure Control Effectiveness | 3Q/10 | 4Q/10 | 1Q/11 | 2Q/11 | 3Q/11 | 4Q/11 | 1Q/12 | 2Q/12 |
| 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 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Licensee Comments: none
| RETS/ODCM Radiological Effluent | 3Q/10 | 4Q/10 | 1Q/11 | 2Q/11 | 3Q/11 | 4Q/11 | 1Q/12 | 2Q/12 |
| RETS/ODCM occurrences | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Indicator value | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Licensee Comments: none
Although the Security Cornerstone is included in the Reactor Oversight Process assessment program, the Commission has decided that specific information related to findings and performance indicators pertaining to the Security Cornerstone will not be publicly available to ensure that security information is not provided to a possible adversary. Other than the fact that a finding or performance indicator is Green or Greater-Than-Green, security related information will not be displayed on the public web page.
Action Matrix Summary |
Inspection Findings Summary |
PI Summary |
Reactor Oversight Process
Last Modified: July 24, 2012