United States Nuclear Regulatory Commission - Protecting People and the Environment

Hatch 2 – Quarterly Performance Indicators

2Q/2017 Performance Indicators

The solid trend line represents the current reporting period.

Licensee's General Comments: none

On this page:

Link to Notes

Unplanned Scrams per 7000 Critical Hrs 3Q/15 4Q/15 1Q/16 2Q/16 3Q/16 4Q/16 1Q/17 2Q/17
Unplanned scrams 0 0 0 0 0 0 0 0
Critical hours 2208.0 2209.0 2183.0 2079.9 2208.0 2209.0 1686.9 2184.0
                 
Indicator value 0 0 0 0 0 0 0 0

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Licensee Comments: none


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Unplanned Power Changes per 7000 Critical Hrs 3Q/15 4Q/15 1Q/16 2Q/16 3Q/16 4Q/16 1Q/17 2Q/17
Unplanned power changes 1.0 0 0 4.0 0 0 0 2.0
Critical hours 2208.0 2209.0 2183.0 2079.9 2208.0 2209.0 1686.9 2184.0
                 
Indicator value 1.7 0.9 0.8 4.0 3.2 3.2 3.4 1.7

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Licensee Comments: none




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Unplanned Scrams with Complications 3Q/15 4Q/15 1Q/16 2Q/16 3Q/16 4Q/16 1Q/17 2Q/17
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

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Licensee Comments: none




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Safety System Functional Failures (BWR) 3Q/15 4Q/15 1Q/16 2Q/16 3Q/16 4Q/16 1Q/17 2Q/17
Safety System Functional Failures 0 0 0 1 0 1 0 3
                 
Indicator value 0 0 0 1 1 2 2 4

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Licensee Comments:
2Q/17: LER's 1-2017-003, 2-2017-003, 1-2017-004
4Q/16: LER 2-2016-003 "2C Emergency Diesel Generator Inoperable Due to Low Lube Oil Pressure"
2Q/16: 2016-06 - LER 2-2016-001, "2C EDG Fuel Oil Relief Valve Leakage Caused Train Inoperability"




Link to Notes

Mitigating Systems Performance Index, Emergency AC Power System 3Q/15 4Q/15 1Q/16 2Q/16 3Q/16 4Q/16 1Q/17 2Q/17
UAI (ΔCDF) 5.53E-09 6.75E-08 5.92E-08 9.77E-08 1.25E-07 1.31E-07 1.16E-07 5.65E-08
URI (ΔCDF) -5.05E-08 -5.05E-08 -5.92E-08 -4.61E-08 1.38E-07 1.43E-07 1.13E-07 1.40E-07
PLE NO NO NO NO NO NO NO NO
                 
Indicator value -4.50E-08 1.70E-08 -7.40E-11 5.20E-08 2.60E-07 2.70E-07 2.30E-07 2.00E-07

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Licensee Comments:
1Q/16: One fuel leak condition affecting the 2C diesel is under evaluation. Evaluation determined this was not an MSPI failure based on MSPI dictated main system function not affected by event.
1Q/16: One fuel leak condition affecting the 2C diesel is under evaluation.




Link to Notes

Mitigating Systems Performance Index, High Pressure Injection System 3Q/15 4Q/15 1Q/16 2Q/16 3Q/16 4Q/16 1Q/17 2Q/17
UAI (ΔCDF) -7.82E-08 -7.82E-08 -7.82E-08 -7.82E-08 -7.82E-08 -7.82E-08 -7.82E-08 -7.82E-08
URI (ΔCDF) -1.26E-07 -1.12E-07 -1.01E-07 -1.01E-07 -1.01E-07 -1.01E-07 -1.02E-07 -1.02E-07
PLE NO NO NO NO NO NO NO NO
                 
Indicator value -2.00E-07 -1.90E-07 -1.80E-07 -1.80E-07 -1.80E-07 -1.80E-07 -1.80E-07 -1.80E-07

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Licensee Comments: none




Link to Notes

Mitigating Systems Performance Index, Heat Removal System 3Q/15 4Q/15 1Q/16 2Q/16 3Q/16 4Q/16 1Q/17 2Q/17
UAI (ΔCDF) -6.69E-09 -6.69E-09 -6.69E-09 -6.69E-09 -6.69E-09 -6.69E-09 -6.69E-09 -6.69E-09
URI (ΔCDF) -1.76E-08 -1.76E-08 -1.68E-08 -1.68E-08 -1.68E-08 -1.68E-08 -1.84E-08 -1.84E-08
PLE NO NO NO NO NO NO NO NO
                 
Indicator value -2.40E-08 -2.40E-08 -2.40E-08 -2.40E-08 -2.30E-08 -2.40E-08 -2.50E-08 -2.50E-08

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Licensee Comments: none




Link to Notes

Mitigating Systems Performance Index, Residual Heat Removal System 3Q/15 4Q/15 1Q/16 2Q/16 3Q/16 4Q/16 1Q/17 2Q/17
UAI (ΔCDF) -6.82E-09 -1.18E-08 -1.18E-08 -1.18E-08 -1.18E-08 -9.71E-09 -8.23E-09 -8.23E-09
URI (ΔCDF) -1.14E-07 -1.14E-07 -1.11E-07 -1.13E-07 -1.14E-07 -1.15E-07 -1.20E-07 -1.21E-07
PLE NO NO NO NO NO NO NO NO
                 
Indicator value -1.20E-07 -1.30E-07 -1.20E-07 -1.20E-07 -1.30E-07 -1.30E-07 -1.30E-07 -1.30E-07

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Licensee Comments: none




Link to Notes

Mitigating Systems Performance Index, Cooling Water Systems 3Q/15 4Q/15 1Q/16 2Q/16 3Q/16 4Q/16 1Q/17 2Q/17
UAI (ΔCDF) 4.96E-08 4.48E-08 3.91E-08 3.79E-08 3.68E-09 3.64E-09 3.81E-09 3.81E-09
URI (ΔCDF) -8.90E-08 -9.07E-08 -8.93E-08 -9.11E-08 -8.85E-08 -8.94E-08 -8.90E-08 -8.93E-08
PLE NO NO NO NO NO NO NO NO
                 
Indicator value -3.90E-08 -4.60E-08 -5.00E-08 -5.30E-08 -8.50E-08 -8.60E-08 -8.50E-08 -8.60E-08

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Licensee Comments: none




Link to Notes

Reactor Coolant System Activity 7/15 8/15 9/15 10/15 11/15 12/15 1/16 2/16 3/16 4/16 5/16 6/16
Maximum activity 0.000016 0.000016 0.000013 0.000013 0.000010 0.000005 0.000010 0.000008 0.000007 0.000012 0.000030 0.000017
Technical specification limit 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2
                         
Indicator value 0 0 0 0 0 0 0 0 0 0 0 0
Reactor Coolant System Activity 7/16 8/16 9/16 10/16 11/16 12/16 1/17 2/17 3/17 4/17 5/17 6/17
Maximum activity 0.000017 0.000013 0.000017 0.000018 0.000021 0.000018 0.000014 N/A 0.000005 0.000009 0.000005 0.000006
Technical specification limit 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2
                         
Indicator value 0 0 0 0 0 0 0 N/A 0 0 0 0

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Licensee Comments: none




Link to Notes

Reactor Coolant System Leakage 7/15 8/15 9/15 10/15 11/15 12/15 1/16 2/16 3/16 4/16 5/16 6/16
Maximum leakage 1.760 1.630 1.560 1.540 1.470 1.420 1.380 1.370 1.400 1.330 1.720 1.700
Technical specification limit 30.0 30.0 30.0 30.0 30.0 30.0 30.0 30.0 30.0 30.0 30.0 30.0
                         
Indicator value 5.9 5.4 5.2 5.1 4.9 4.7 4.6 4.6 4.7 4.4 5.7 5.7
Reactor Coolant System Leakage 7/16 8/16 9/16 10/16 11/16 12/16 1/17 2/17 3/17 4/17 5/17 6/17
Maximum leakage 1.950 1.640 1.600 1.570 1.540 1.520 1.610 1.620 1.690 1.660 1.600 1.580
Technical specification limit 30.0 30.0 30.0 30.0 30.0 30.0 30.0 30.0 30.0 30.0 30.0 30.0
                         
Indicator value 6.5 5.5 5.3 5.2 5.1 5.1 5.4 5.4 5.6 5.5 5.3 5.3

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Licensee Comments: none




Link to Notes

Drill/Exercise Performance 3Q/15 4Q/15 1Q/16 2Q/16 3Q/16 4Q/16 1Q/17 2Q/17
Successful opportunities 58.0 41.0 22.0 55.0 53.0 36.0 24.0 27.0
Total opportunities 58.0 42.0 24.0 55.0 53.0 36.0 24.0 29.0
                 
Indicator value 98.8% 99.0% 98.5% 98.7% 98.6% 98.6% 98.6% 98.4%

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Licensee Comments:
1Q/17: The value for March 2017 was changed to correct previously reported data to include an additional 10 opportunities. The change did not affect the color of the indicator.




Link to Notes

ERO Drill Participation 3Q/15 4Q/15 1Q/16 2Q/16 3Q/16 4Q/16 1Q/17 2Q/17
Participating Key personnel 101.0 105.0 99.0 85.0 85.0 95.0 97.0 86.0
Total Key personnel 101.0 105.0 99.0 85.0 85.0 96.0 97.0 86.0
                 
Indicator value 100.0% 100.0% 100.0% 100.0% 100.0% 99.0% 100.0% 100.0%

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Licensee Comments:
4Q/15: November and December values revised due to a failure to remove an individual that no longer required to be tracked in the Control Room ENN Communicator position




Link to Notes

Alert & Notification System 3Q/15 4Q/15 1Q/16 2Q/16 3Q/16 4Q/16 1Q/17 2Q/17
Successful siren-tests 1117 1039 1038 1036 1032 1117 1039 1039
Total sirens-tests 1120 1040 1040 1040 1040 1120 1040 1040
                 
Indicator value 99.9% 99.9% 99.8% 99.8% 99.6% 99.6% 99.6% 99.7%

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Licensee Comments: none




Link to Notes

Occupational Exposure Control Effectiveness 3Q/15 4Q/15 1Q/16 2Q/16 3Q/16 4Q/16 1Q/17 2Q/17
High radiation area occurrences 0 0 0 0 1 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 1 1 1 1

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Licensee Comments:
3Q/16: The number of high radiation area occurrences was changed value from 0 to 1 for the month of September 2016 to include a previously omitted occurrence. The change does not affect the color of the indicator.




Link to Notes

RETS/ODCM Radiological Effluent 3Q/15 4Q/15 1Q/16 2Q/16 3Q/16 4Q/16 1Q/17 2Q/17
RETS/ODCM occurrences 0 0 0 0 0 0 0 0
                 
Indicator value 0 0 0 0 0 0 0 0

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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.





 
 
 
 

Current data as of: July 26, 2017

Page Last Reviewed/Updated Wednesday, June 07, 2017