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

Surry 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 0 1.0 0
Critical hours 2209.0 2133.5 2184.0 2208.0 1236.0 2183.0 2081.1 2208.0
                 
Indicator value 0 0 0 0 0 0 0.9 0.9


Licensee Comments: none



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 2.0 0 0 0 0 1.0 1.0 0
Critical hours 2209.0 2133.5 2184.0 2208.0 1236.0 2183.0 2081.1 2208.0
                 
Indicator value 2.6 1.8 1.6 1.6 0 0.9 1.8 1.8

Licensee Comments: none





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 0 0 0
                 
                 
Indicator value       0.0 0.0 0.0 0.0 0.0

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 0
                 
Indicator value 0 0 0 0 0 0 0 0

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) 5.90E-08 5.30E-08 5.90E-08 1.40E-08 1.00E-07 8.40E-08 1.50E-07 1.80E-07
URI (ΔCDF) -6.40E-07 -6.30E-07 -6.20E-07 -6.00E-07 -4.40E-07 -4.40E-07 -4.50E-07 -4.50E-07
PLE NO NO NO NO NO NO NO NO
                 
Indicator value -5.81E-07 -5.77E-07 -5.61E-07 -5.86E-07 -3.40E-07 -3.56E-07 -3.00E-07 -2.70E-07

Licensee Comments:

3Q/08: A self assessment revealed missing data for a diesel surveillance test in March 2008. Also corrected was a PRA parameter for 1st quarter 2008. Historical data was corrected with no change in color.





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) -2.30E-09 -7.70E-10 -9.20E-10 -1.30E-09 -2.20E-09 -2.20E-09 -1.80E-09 -1.80E-09
URI (ΔCDF) -6.30E-09 -6.60E-09 -1.00E-08 -1.00E-08 -2.60E-08 -2.60E-08 -2.60E-08 -3.40E-08
PLE NO NO NO NO NO NO NO NO
                 
Indicator value -8.60E-09 -7.37E-09 -1.09E-08 -1.13E-08 -2.82E-08 -2.82E-08 -2.78E-08 -3.58E-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) -6.30E-10 -8.10E-09 3.90E-08 4.00E-08 2.30E-08 2.50E-08 2.10E-08 3.90E-08
URI (ΔCDF) -1.00E-07 -1.00E-07 -1.00E-07 -1.10E-07 -1.20E-07 -1.20E-07 -1.20E-07 -1.20E-07
PLE NO NO NO NO NO NO NO NO
                 
Indicator value -1.01E-07 -1.08E-07 -6.10E-08 -7.00E-08 -9.70E-08 -9.50E-08 -9.90E-08 -8.10E-08

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) -4.70E-09 -3.30E-09 -3.40E-09 -4.70E-09 -4.80E-09 -4.80E-09 -4.80E-09 -2.60E-09
URI (ΔCDF) -1.50E-08 -1.50E-08 -1.40E-08 -1.40E-08 -1.70E-08 -1.60E-08 -1.60E-08 -1.60E-08
PLE NO NO NO NO NO NO NO NO
                 
Indicator value -1.97E-08 -1.83E-08 -1.74E-08 -1.87E-08 -2.18E-08 -2.08E-08 -2.08E-08 -1.86E-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) 2.70E-09 2.70E-09 4.80E-09 5.00E-09 9.20E-08 9.10E-08 7.80E-08 1.00E-07
URI (ΔCDF) -1.20E-07 -1.20E-07 -1.30E-07 -1.30E-07 -1.50E-07 -1.50E-07 -1.50E-07 -1.50E-07
PLE NO NO NO NO NO NO NO NO
                 
Indicator value -1.17E-07 -1.17E-07 -1.25E-07 -1.25E-07 -5.80E-08 -5.90E-08 -7.20E-08 -5.00E-08

Licensee Comments: none





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 0.001060 0.001120 0.001180 0.001220 0.001300 0.001420 0.001430 0.001560 0.001520 0.001620 0.002360 0.001630
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 0.2 0.2 0.2 0.2 0.2
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 0.001750 N/A 0.001060 0.001250 0.001120 0.000964 0.000905 0.001270 0.001210 0.001070 0.001030 0.001100
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 N/A 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1

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 0.080 0.070 0.080 0.080 0.090 0.090 0.280 0.220 0.260 0.420 0.400 0.350
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 0.8 0.7 0.8 0.8 0.9 0.9 2.8 2.2 2.6 4.2 4.0 3.5
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 0.450 N/A 0.170 0.130 0.110 0.100 0.170 0.230 0.180 0.120 0.250 0.450
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 4.5 N/A 1.7 1.3 1.1 1.0 1.7 2.3 1.8 1.2 2.5 4.5

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 1.0 32.0 25.0 18.0 24.0 43.0 41.0 37.0
Total opportunities 3.0 34.0 26.0 20.0 24.0 45.0 42.0 43.0
                 
Indicator value 96.8% 96.6% 96.2% 95.0% 94.9% 94.7% 95.1% 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 149.0 164.0 159.0 164.0 160.0 128.0 149.0 138.0
Total Key personnel 159.0 174.0 174.0 169.0 164.0 132.0 153.0 145.0
                 
Indicator value 93.7% 94.3% 91.4% 97.0% 97.6% 97.0% 97.4% 95.2%

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 476 543 474 539 476 543 472 475
Total sirens-tests 476 544 476 544 476 544 476 476
                 
Indicator value 99.5% 99.6% 99.6% 99.6% 99.6% 99.6% 99.5% 99.7%

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 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





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