ML20311A638

2017 Q1-Q4 ROP Performance Summary

ML20311A638
Person / Time
Site:	Byron
Issue date:	11/06/2017
From:	Office of Nuclear Reactor Regulation
To:
References
Download: ML20311A638 (184)

Text

Byron 2 1Q/2000 Performance Summary Page 1 of 2 1Q/2000 - Byron 2

Inspection Findings Summary l PI Summary l Reactor Oversight Process Page 2 of 2 1Q/2000 - Byron 2 Initiating Events 1012000!=.:

Reactor Safety Mitigating Systems Barrier Integrity Emergency Preparedness Radiation Safety T

T Occupational Public Radiation Radiation Safety Safety Most Significant Inspection Findings Miscellaneous findings Addition a I I nsp e cti on & Assessment Info rm ati on I Nofndllngs ttis..-ter

+ List of Inspection Reports Safeguards Physical Protection No'lh:tlgs ttis~

+ Assessment Rep o rts/1 nsp e cti on PI ans:

10/2000

+ List of Assessment Letters/I nsp e cti on PI ans

+ Cross Reference Of Assessment Reports Last Modified: April 1, 2002

Byron 2 2Q/2000 Performance Summary Page 1 of 2 2Q/2000 - Byron 2

Inspection Findings Summary l PI Summary l Reactor Oversight Process Page 2 of 2 2Q/2000 - Byron 2 Initiating Events 2012000!=.:

10!20001~=

Reactor Safety Mitigating Systems Barrier Integrity Emergency Preparedness Radiation Safety T

T Occupational Public Radiation Radiation Safety Safety Most Significant Inspection Findings I

No fi"ldilgs this IJB'ter" Miscellaneous findings I Nofndllngs ttis..-ter 1 No fildirgs thls~r Additional Inspection & Assessment Information

+ List of Inspection Reports Safeguards Physical Protection No'lh:tlgs ttis~

+ Assessment Rep o rts/1 nsp e cti on PI ans:

20/2000

+ List of Assessment Letters/I nsp e cti on PI ans 10/2000

+ Cross Reference Of Assessment Reports Last Modified: April 1, 2002

Byron 2 3Q/2000 Performance Summary Page 1 of 2 3Q/2000 - Byron 2

Inspection Findings Summary l PI Summary l Reactor Oversight Process Page 2 of 2 3Q/2000 - Byron 2 30!2000 Initiating Events 20!20001~=

1oi2oool=.=

Reactor Safety Mitigating Systems Barrier Integrity Emergency Preparedness Radiation Safety T

T Occupational Public Radiation Radiation Safety Safety Most Significant Inspection Findings 1~=

1=.=

1=-=

1:s:

1=-=

I No'ltldngs this..-ter I

No fi"ldilgs this IJB'ter" I No'ltldngs thls..-ter Miscellaneous findings I No1na"Qs this CJ,arter I

Nofndllngs ttis..-ter I

No fildirgs thls~r I No1na"Qs this CJ,arter I

Nofndllngs thls..-mr Additional Inspection & Assessment Information

+ List of Inspection Reports Safeguards Physical Protection No'lh:tlgs this~

No1h:tlgs thls"8ter No'lh:tlgs this~

+ Assessment Rep o rts/1 nsp e cti on PI ans:

30/2000

+ List of Assessment Letters/I nsp e cti on PI ans 20/2000 10/2000

+ Cross Reference Of Assessment Reports Last Modified: March 29, 2002

Byron 2 4Q/2000 Performance Summary Page 1 of 2 4Q/2000 - Byron 2 Initiating Events Inspection Findings y

Current Action Matrix Column:

Licensee Response Assessment Reports Reactor Radiation Safety Safety

~~

T T

~ Mitigating...

Barrier Emergency Systems Integrity Preparedness 0cc upat ional Public Radiation Radiation Safety Safety Performance Indicators Performance Indicators y

Safeguards Physical Protection last Modified: April 8, 2002 Legend: R=Red W=White T=Thresho1ds under deve1opment N=Not 1lpp1icab1e Y=Ye11ow G=Green I=Insufficient data to ca1cu1ate PI U=Unique Design

Action Matrix Summary l Inspection Findings Summary l PI Summary l Reactor Oversight Process Page 2 of 2 4Q/2000 - Byron 2

Byron 2 1Q/2001 Performance Summary Page 1 of 2 1Q/2001 - Byron 2 Initiating Events Inspection Findings y

Current Action Matrix Column:

Licensee Response Assessment Reports Reactor Radiation Safety Safety

~~

T T

~ Mitigating...

Barrier Emergency Systems Integrity Preparedness 0cc upat ional Public Radiation Radiation Safety Safety Performance Indicators Performance Indicators y

Safeguards Physical Protection last Modified: April 9, 2002 Legend: R=Red W=White T=Thresho1ds under deve1opment N=Not 1lpp1icab1e Y=Ye11ow G=Green I=Insufficient data to ca1cu1ate PI U=Unique Design

Action Matrix Summary l Inspection Findings Summary l PI Summary l Reactor Oversight Process Page 2 of 2 1Q/2001 - Byron 2

Byron 2 2Q/2001 Performance Summary Page 1 of 2 2Q/2001 - Byron 2 Initiating Events Inspection Findings y

Current Action Matrix Column:

Licensee Response Assessment Reports Reactor Radiation Safety Safety

~~

T T

~ Mitigating...

Barrier Emergency Systems Integrity Preparedness 0cc upat ional Public Radiation Radiation Safety Safety Performance Indicators Performance Indicators y

Safeguards Physical Protection last Modified: April 9, 2002 Legend: R=Red W=White T=Thresho1ds under deve1opment N=Not 1lpp1icab1e Y=Ye11ow G=Green I=Insufficient data to ca1cu1ate PI U=Unique Design

Action Matrix Summary l Inspection Findings Summary l PI Summary l Reactor Oversight Process Page 2 of 2 2Q/2001 - Byron 2

Byron 2 3Q/2001 Performance Summary Page 1 of 2 3Q/2001 - Byron 2 Initiating Events Inspection Findings y

Current Action Matrix Column:

Licensee Response Assessment Reports Reactor Radiation Safety Safety

~~

T T

~ Mitigating...

Barrier Emergency Systems Integrity Preparedness 0cc upat ional Public Radiation Radiation Safety Safety Performance Indicators Performance Indicators y

Safeguards Physical Protection last Modified: April 9, 2002 Legend: R=Red W=White T=Thresho1ds under deve1opment N=Not 1lpp1icab1e Y=Ye11ow G=Green I=Insufficient data to ca1cu1ate PI U=Unique Design

Action Matrix Summary l Inspection Findings Summary l PI Summary l Reactor Oversight Process Page 2 of 2 3Q/2001 - Byron 2

Byron 2 4Q/2001 Performance Summary Page 1 of 2 4Q/2001 - Byron 2 Initiating Events Inspection Findings y

Current Action Matrix Column:

Licensee Response Assessment Reports Reactor Radiation Safety Safety

~~

T T

~ Mitigating...

Barrier Emergency Systems Integrity Preparedness 0cc upat ional Public Radiation Radiation Safety Safety Performance Indicators Performance Indicators y

Safeguards Physical Protection last Modified: March 1, 2002 Legend: R=Red W=White T=Thresho1ds under deve1opment N=Not 1lpp1icab1e Y=Ye11ow G=Green I=Insufficient data to ca1cu1ate PI U=Unique Design

Action Matrix Summary l Inspection Findings Summary l PI Summary l Reactor Oversight Process Page 2 of 2 4Q/2001 - Byron 2

Byron 2 1Q/2002 Performance Summary Page 1 of 2 1Q/2002 - Byron 2 Initiating Events Current Action Matrix Column:

Inspection Findings y

Reactor Safety Mitigating Systems Barrier Integrity Licensee Response Assessment Reports Radiation Emergency Preparedness Safety T

T 0cc upat ional Public Radiation Radiation Safety Safety Performance Indicators Performance Indicators y

Safeguards Physical Protection last Modified: May 3, 2002 Legend: R=Red W=White T=Thresho1ds Wlder deve1opment N=Not ilpp1icab1e Y=Ye11ow G=Green I=Insufficient data to ca1cu1ate PI U=Unique Design

Action Matrix Summary l Inspection Findings Summary l PI Summary l Reactor Oversight Process Page 2 of 2 1Q/2002 - Byron 2 Initiating Events Nofidlgs 10/2002 tNs q..ter 40/20011

.

30/20011~=

20/2001 Reactor Safety Mitigating Systems Barrier Integrity Emergency Preparedness Radiation Safety T

T Occupational Public Radiation Radiation Safety Safety Most Significant Inspection Findings Findings without color designation 1~=

Nofidlgs tNs IJ8ter" No fi"ldilgs this IJ8ter" I No'ltldngs this....

I No'ltldngs this IJB'ler I No'ltldngs this....

Miscellaneous findings Nofidlp Nofndiras tNs CJ.Brier thls~r I No1na"Qs this IJ,Brter I

Nofndllngs ttis..-ter 1No1hqs this IJ,llrter I

Nofhdllrgs thls~r I No1n*Vs this IJ,Brter I

Nofndllngs thls..-mr Addition a I I nsp e cti on & Assessment Info rm ati on

+ List of Inspection Reports Safeguards Physical Protection

+ Assessment Rep o rts/1 nsp e cti on PI ans:

10/2002

+ List of Assessment Letters/I nsp e cti on PI ans 40/2001 30/2001 20/2001

+ Cross Reference Of Assessment Reports Last Modified: July 22, 2002

Byron 2 2Q/2002 Performance Summary Page 1 of 4 2Q/2002 - Byron 2 07/03/2003 file://C:\\RROP\\NRR\\OVERSIGHT\\ASSESS\\BYRO2\\byro2_chart.html

Page 2 of 4 2Q/2002 - Byron 2 07/03/2003 file://C:\\RROP\\NRR\\OVERSIGHT\\ASSESS\\BYRO2\\byro2_chart.html Initiating Events Reactor Safety Mitigating Systems Barrier Integrity Emergency Preparedness Performance Indicators Radiation Safety T

T 0cc upat ional Public Radiation Radiation Safety Safety Safeguards Physical Protection Last Modified: July 31, 2002 Legend: R=Red W=White T=Thresho1ds Wl.der deve1opment Y=Ye11ow G=Green I=Insuf ficient data to ca1cu1ate PI N=Not App1icab1e U=Unique Design

Page 3 of 4 2Q/2002 - Byron 2 07/03/2003 file://C:\\RROP\\NRR\\OVERSIGHT\\ASSESS\\BYRO2\\byro2_chart.html Initiating Events 2oi2002I=.:

10!20021~=

40!20011=-=

30!20011~=

Reactor Safety Mitigating Systems Barrier Integrity Emergency Preparedness Radiation Safety T

T Occupational Public Radiation Radiation Safety Safety Most Significant Inspection Findings Findings without color designation Findings without color designation 1~=

1=-=

1:s:

I No'ltldngs this..-ter I

No fi"ldilgs this IJB'ter" I

No'ltldngs thls..-ter I

No'ltldngs thlslJB'ler Miscellaneous findings I

No1na"Qs this CJ,arter I

Nofndllngs ttis..-ter I

No1nrgs this CJ.Brier I

No fildirgs thls~r I

No1na"Qs this CJ,arter I

Nofndllngs thls..-mr I

No1na"Qs this IJ,llrter I

Nofndllngs thls~r Additional Inspection & Assessment Information

+ List of Inspection Reports Safeguarc Physical Protectio1

+ Assessment Rep o rts/1 nsp e cti on PI ans:

20/2002

+ List of Assessment Letters/I nsp e cti on PI ans 10/2002 40/2001 30/2001

+ Cross Reference Of Assessment Reports Last Modified: August 29, 2002

Action Matrix Summary l Inspection Findings Summary l PI Summary l Reactor Oversight Process Page 4 of 4 2Q/2002 - Byron 2 07/03/2003 file://C:\\RROP\\NRR\\OVERSIGHT\\ASSESS\\BYRO2\\byro2_chart.html

Byron 2 3Q/2002 Performance Summary Page 1 of 3 3Q/2002 - Byron 2 Inspection Findings

¥ Current Action Matrix Co I um n:

Licensee Response Assessment Reports Reactor Radiation Safety Safety

~~

T T

Initiating Mitigating

~

Barrier Emergency Events Systems Integrity Preparedness 0cc upat ional Public Radiation Radiation Safety Safety Performance Indicators last Modified: October 22, 2002 Performance Indicators

¥ Safeguards Physical Protection

Page 2 of 3 3Q/2002 - Byron 2 Legend: R=Red W=White T=Thresho1ds under deve1opment N=Not 11.pp1icab1e Y=Ye11ow G=Green I=Insufficient data to ca1cu1ate PI U=Unique Design Initiating Events Nofidlgs 30!2002 this ~r 20!20021 =*=

10!20021 =*=

40!20011 =*=

Reactor Safety Mitigating Systems Barrier Integrity Emergency Preparedness Radiation Safety T

T Occupational Public Radiation Radiation Safety Safety Most Significant Inspection Findings Nofh:tlgs

'lta~ster Findings without color designation Findings without color designation Nofidlgs 1ta1J81:er 1:m=

1:s=

No fi"ldilgs

'ltaq..ter 1

No'ltldngs ttisq..ter 1

No'ltldngs tNsqlB'ter 1

No'ltldngs Nsq..ter Miscellaneous findings Nofidlgs Nofndiras ttaq..ter

'ltaq..ter I

No1na"Qs ttisq..ter 1

Nofndllngs ttisq..ter 1:s= l:S':

1:s= l:S':

Additional Inspection & Assessment Information

+ List of Inspection Reports Safeguarc Physical Protectio1 Nofh:tlgs thls~ster No fh:tlJas this~--

No'lh:llgs thls~ster No fh:tlJas this~--

+ Assessment Rep o rts/1 nsp e cti on PI ans:

30/2002

+ List of Assessment Letters/I nsp e cti on PI ans 20/2002 10/2002 40/2001

+ Cross Reference Of Assessment Reports Last Modified: December 2, 2002

Action Matrix Summary l Inspection Findings Summary l PI Summary l Reactor Oversight Process Page 3 of 3 3Q/2002 - Byron 2

Byron 2 4Q/2002 Performance Summary Page 1 of 3 4Q/2002 - Byron 2 Inspection Findings y

Current Action Matrix Co I um n:

Licensee Response Assessment Reports Reactor Radiation Safety Safety

~~

T T

Initiating Mitigating

~

Barrier Emergency Events Systems Integrity Preparedness 0cc upat ional Public Radiation Radiation Safety Safety Performance Indicators last Modified: January 30, 2003 Performance Indicators y

Safeguards Physical Protection

Page 2 of 3 4Q/2002 - Byron 2 40!2002 30!2002 Legend: R=Red W=White T=Thresho1ds under deve1opment N=Not 11.pp1icab1e Initiating Events Y=Ye11ow G=Green I=Insufficient data to ca1cu1ate PI U=Unique Design Reactor Safety Mitigating Systems Barrier Integrity Emergency Preparedness Radiation Safety T

T Occupational Public Radiation Radiation Safety Safety Most Significant Inspection Findings l:m=

I No'ltldngs ttisq..ter I

No1na"Qs ttisq..ter I

Nofndllngs ttisq..ter 1:s= I No fi"ldilgs ttaq..ter 1:s= I:.':

Safeguarc Physical Protectio1 No fh:tlJas lhis-..ister Nofh:tlgs lhls-..ister 2oi2002lt:.=

Findings without 1:m=

I No'ltldngs 1=-=

1=-'=

No fh:tlJas color designation tisq..ter lhls-..ister 1oi2002lt:.=

I No 'lh:tlJa*

1:a= I No'ltldngs 1=-=

1=-'=

No 'lh:tlJa*

'IN&:-..iarter

'INsqlB'ter this -..iarter Miscellaneous findings Additional Inspection & Assessment Information

+ Assessment Rep o rts/1 nsp e cti on PI ans:

40/2002 30/2002 20/2002 10/2002

+ Cross Reference Of Assessment Reports Last Modified: March 25, 2003

+ List of Inspection Reports

+ List of Assessment Letters/I nsp e cti on PI ans

Action Matrix Summary l Inspection Findings Summary l PI Summary l Reactor Oversight Process Page 3 of 3 4Q/2002 - Byron 2

Byron 2 1Q/2003 Performance Summary Page 1 of 4 1Q/2003 - Byron 2 07/22/2003 file://C:\\RROP\\NRR\\OVERSIGHT\\ASSESS\\BYRO2\\byro2_chart.html

Page 2 of 4 1Q/2003 - Byron 2 07/22/2003 file://C:\\RROP\\NRR\\OVERSIGHT\\ASSESS\\BYRO2\\byro2_chart.html Initiating Events Reactor Safety Mitigating Systems Barrier Integrity Emergency Preparedness Performance Indicators Radiation Safety T

T 0cc upat ional Public Radiation Radiation Safety Safety Safeguards Physical Protection Last Modified: April 2 2, 2003 Legend: R=Red W=White T=Thresho1ds Wl.der deve1opment Y=Ye11ow G=Green I=Insuf ficient data to ca1cu1ate PI N=Not App1icab1e U=Unique Design

Page 3 of 4 1Q/2003 - Byron 2 07/22/2003 file://C:\\RROP\\NRR\\OVERSIGHT\\ASSESS\\BYRO2\\byro2_chart.html Initiating Events 10!20031=*=

40!2002 30!2002 2oi2002lt:.=

Reactor Safety Mitigating Systems Barrier Integrity Emergency Preparedness Radiation Safety T T Occupational Public Radiation Radiation Safety Safety Most Significant Inspection Findings Findings without color designation 1:s=

1:m=

1:a=

I No'ltldngs ttisq..ter I

No fi"ldilgs ttaq..ter I

No'ltldngs tisq..ter I

No'ltldngs tNsqlB'ter Miscellaneous findings I

No1na"Qs ttisq..ter 1:s=

1=-=

1=-=

I Nofndllngs ttisq..ter Additional Inspection & Assessment Information

+ List of Inspection Reports Safeguarc Physical Protectio1 No'lh:tlgs lhlslf.lster

+ Assessment Rep o rts/1 nsp e cti on PI ans:

10/2003

+ List of Assessment Letters/I nsp e cti on PI ans 40/2002 30/2002 20/2002

+ Cross Reference Of Assessment Reports Last Modified: May 30, 2003

Action Matrix Summary l Inspection Findings Summary l PI Summary l Reactor Oversight Process Page 4 of 4 1Q/2003 - Byron 2 07/22/2003 file://C:\\RROP\\NRR\\OVERSIGHT\\ASSESS\\BYRO2\\byro2_chart.html

Byron 2 2Q/2003 Performance Summary Page 1 of 4 2Q/2003 - Byron 2 10/08/2003 file://C:\\RROP\\NRR\\OVERSIGHT\\ASSESS\\BYRO2\\byro2_chart.html

Page 2 of 4 2Q/2003 - Byron 2 10/08/2003 file://C:\\RROP\\NRR\\OVERSIGHT\\ASSESS\\BYRO2\\byro2_chart.html Initiating Events Reactor Safety Mitigating Systems Barrier Integrity Emergency Preparedness Performance Indicators Radiation Safety T

T 0cc upat ional Public Radiation Radiation Safety Safety Safeguards Physical Protection Last Modified: July 22, 2003 Legend: R=Red W=White T=Thresho1ds Wl.der deve1opment Y=Ye11ow G=Green I=Insuf ficient data to ca1cu1ate PI N=Not App1icab1e U=Unique Design

Page 3 of 4 2Q/2003 - Byron 2 10/08/2003 file://C:\\RROP\\NRR\\OVERSIGHT\\ASSESS\\BYRO2\\byro2_chart.html Initiating Events 20!20031=*=

40!2002 30!2002 Reactor Safety Mitigating Systems Barrier Integrity Emergency Preparedness Radiation Safety T

T 0cc upat ional Public Radiation Radiation Safety Safety Most Significant Inspection Findings I

No'ltldngs ttisq..ter I No1na"Qs ttisq..ter I

Nofndllngs ttisq..ter I

No fi"ldilgs ttaq..ter 1:s=

I:.':

1=-=

I No'ltldngs tisq..ter 1=-=

1=-'=

1:a= I No'ltldngs tNsqlB'ter 1=-=

1=-'=

Miscellaneous findings Additional Inspection & Assessment Information

+ List of Inspection Reports Safeguarc Physical Protectio1 No'lh:tlgs lhis-..ister No1h:tlgs lhls-..ister No'lh:tlgs lhls-..ister No'lh:tlgs this -..iarter

+ Assessment Rep o rts/1 nsp e cti on PI ans:

20/2003

+ List of Assessment Letters/I nsp e cti on PI ans 10/2003 40/2002 30/2002

+ Cross Reference Of Assessment Reports Last Modified: September 4, 2003

Action Matrix Summary l Inspection Findings Summary l PI Summary l Reactor Oversight Process Page 4 of 4 2Q/2003 - Byron 2 10/08/2003 file://C:\\RROP\\NRR\\OVERSIGHT\\ASSESS\\BYRO2\\byro2_chart.html

Byron 2 3Q/2003 Performance Summary Page 1 of 4 3Q/2003 - Byron 2 01/12/2004 file://C:\\RROP\\NRR\\OVERSIGHT\\ASSESS\\BYRO2\\byro2_chart.html

Page 2 of 4 3Q/2003 - Byron 2 01/12/2004 file://C:\\RROP\\NRR\\OVERSIGHT\\ASSESS\\BYRO2\\byro2_chart.html Initiating Events Reactor Safety Mitigating Systems Barrier Integrity Emergency Preparedness Performance Indicators Radiation Safety T

T 0cc upat ional Public Radiation Radiation Safety Safety Safeguards Physical Protection Last Modified: October 22, 2003 Legend: R=Red W=White T=Thresho1ds Wl.der deve1opment Y=Ye11ow G=Green I=Insuf ficient data to ca1cu1ate PI N=Not App1icab1e U=Unique Design

Page 3 of 4 3Q/2003 - Byron 2 01/12/2004 file://C:\\RROP\\NRR\\OVERSIGHT\\ASSESS\\BYRO2\\byro2_chart.html Initiating Events 30!20031=*=

20!20031 =*=

10!20031 =*=

40!2002 Reactor Safety Mitigating Systems Barrier Integrity Emergency Preparedness Radiation Safety T

T Occupational Public Radiation Radiation Safety Safety Most Significant Inspection Findings 1=-=

I No'ltldngs ttisq..ter I

Nofndllngs ttisq..ter I

No fi"ldilgs ttaq..ter 1:s= I:.':

I No'ltldngs tisq..ter 1=-=

1=-'=

1:a= I No'ltldngs tNsqlB'ter 1=-=

1=-'=

Miscellaneous findings Additional Inspection & Assessment Information

+ List of Inspection Reports Safeguarc Physical Protectio1 No'lh:tlgs lhis-..ister No1h:tlgs lhls-..ister No'lh:tlgs lhls-..ister No'lh:tlgs this -..iarter

+ Assessment Rep o rts/1 nsp e cti on PI ans:

30/2003

+ List of Assessment Letters/I nsp e cti on PI ans 20/2003 10/2003 40/2002

+ Cross Reference Of Assessment Reports Last Modified: December 1, 2003

Action Matrix Summary l Inspection Findings Summary l PI Summary l Reactor Oversight Process Page 4 of 4 3Q/2003 - Byron 2 01/12/2004 file://C:\\RROP\\NRR\\OVERSIGHT\\ASSESS\\BYRO2\\byro2_chart.html

Byron 2 4Q/2003 Performance Summary Page 1 of 4 4Q/2003 - Byron 2 04/22/2004 file://C:\\RROP\\NRR\\OVERSIGHT\\ASSESS\\BYRO2\\byro2_chart.html

Page 2 of 4 4Q/2003 - Byron 2 04/22/2004 file://C:\\RROP\\NRR\\OVERSIGHT\\ASSESS\\BYRO2\\byro2_chart.html Initiating Events Reactor Safety Mitigating Systems Barrier Integrity Emergency Preparedness Performance Indicators Radiation Safety T

T 0cc upat ional Public Radiation Radiation Safety Safety Safeguards Physical Protection Last Modified: Jam.1a,y 23, 2004 Legend: R=Red W=White T=Thresho1ds Wl.der deve1opment Y=Ye11ow G=Green I=Insuf ficient data to ca1cu1ate PI N=Not App1icab1e U=Unique Design

Page 3 of 4 4Q/2003 - Byron 2 04/22/2004 file://C:\\RROP\\NRR\\OVERSIGHT\\ASSESS\\BYRO2\\byro2_chart.html Initiating Events 40!20031=*=

30!20031 =*=

20!20031 =*=

10!20031 =*=

Reactor Safety Mitigating Systems Barrier Integrity Emergency Preparedness Radiation Safety T T Occupational Public Radiation Radiation Safety Safety Most Significant Inspection Findings 1:.=

I No'ltldngs ttisq..ter 1

No fi"ldilgs ttaq..ter 1

No'ltldngs tisq..ter 1

No'ltldngs tNsqlB'ter Miscellaneous findings I

No1na"Qs ttisq..ter 1

Nofndllngs ttisq..ter l:S':

1=-=

1=-'=

1:.= 1=-'=

Additional Inspection & Assessment Information

+ List of Inspection Reports Safeguarc Physical Protectio1 No'lh:tlgs lhis-..ister No1h:tlgs lhls-..ister No'lh:tlgs lhls-..ister No'lh:tlgs this -..iarter

+ Assessment Rep o rts/1 nsp e cti on PI ans:

40/2003

+ List of Assessment Letters/I nsp e cti on PI ans 30/2003 20/2003 10/2003

+ Cross Reference Of Assessment Reports Last Modified: March 2, 2004

Action Matrix Summary l Inspection Findings Summary l PI Summary l Reactor Oversight Process Page 4 of 4 4Q/2003 - Byron 2 04/22/2004 file://C:\\RROP\\NRR\\OVERSIGHT\\ASSESS\\BYRO2\\byro2_chart.html

Byron 2 1Q/2004 Performance Summary Page 1 of 2 1Q/2004 - Byron 2 07/14/2004 Inspection Findings y

Current Action Matrix Column:

Licensee Response Assessment Reports Reactor Radiation Safety Safety

~~

T T

Initiating...

Mitigating

~

Barrier Emergency Events Systems Integrity Preparedness 0cc upat ional Public Radiation Radiation Safety Safety Performance Indicators Last Modified: April 22, 2004 Performance Indicators y

Safeguards Physical Protection

Action Matrix Summary l Inspection Findings Summary l PI Summary l Reactor Oversight Process Page 2 of 2 1Q/2004 - Byron 2 07/14/2004 Legend: R=Red W=White T=Thresho1ds under deve1opment N=Not 11.pp1icab1e Y=Ye11ow G=Green I=Insufficient data to ca1cu1ate PI U=Unique Design Initiating Events 10!20041 :S':

40!20031 No film-gs 111s IJJSl:er 30!20031 No fh*igs tHs..-ter 20!20031 No fh*Gs 1111 IJBl:er Reactor Safety Mitigating Barrier Systems Integrity Emergency Preparedness Radiation Safety Occupational Public Radiation Radiation Safety Safety Most Significant Inspection Findings 1=-=

I Nofndllngs ttis..-ter I:.':

1=-'=

1=-'=

Miscellaneous findings 1:.=

1:a=

lt:m=

1:s=

1:m=

1:.=

1:a=

Additional Inspection & Assessment Information

+ List of Inspection Reports Safeguarc Physical Protectio1 No'ltldngs ttisq..ter No fi"ldilgs 111s q..ter No'ltldngs tlisq..ter No'ltldngs tNsqlB'ter

+ Assessment Reports/Inspection Plans:

10/2004

+ List of Assessment Letters/I nsp e cti on PI ans 40/2003 30/2003 20/2003

+ Cross Reference Of Assessment Reports Last Modified: May 5, 2004

Byron 2 2Q/2004 Performance Summary Page 1 of 2 2Q/2004 Performance Summary - Byron 2 Initiating Events Inspection Findings y

Current Action Matrix Column:

Licensee Response Assessment Reports Reactor Radiation Safety Safety

~~

T T

~ Mitigating Barrier Emergency Systems Integrity Preparedness 0cc upat ional Public Radiation Radiation Safety Safety Performance Indicators Performance Indicators y

Safeguards Physical Protection (NOT PUBLIC)

Last Modified: September 8, 2004 Legend: R=Red W=White T=Thresho1ds Wlder deve1opment N=Not Jlpp1icab1e Y-='re11ow G=Green I=Insufficient data to ca1cu1ate PI U=Unigue Design

Action Matrix Summary l Inspection Findings Summary l PI Summary l Reactor Oversight Process Page 2 of 2 2Q/2004 Performance Summary - Byron 2

Byron 2 3Q/2004 Performance Summary Page 1 of 2 3Q/2004 Performance Summary - Byron 2 Initiating Events Inspection Findings

¥ Current Action Matrix Column:

Licensee Response Assessment Reports Reactor Radiation Safety Safety

~~

T T

Mitigating

~

Barrier Emergency Systems Integrity Preparedness Occupational Public Radiation Radiation Safety Safety Performance Indicators Performance Indicators

¥ Safeguards Physical Protection (NOT PUBLIC)

Last Modified: October 25, 2004 Legend: R=Red W=White T=Thresho1ds under deve1op:ment N=Not 1lpp1icab1e Y~e11ow G=Green I=Insuf ficient data to ca1cu1ate PI U=Unique Design

Action Matrix Summary l Inspection Findings Summary l PI Summary l Reactor Oversight Process Page 2 of 2 3Q/2004 Performance Summary - Byron 2 Initiating Events 3Qf2004 I:::

2Qf2004 I No film-gs this IJ8ter" 1Qf2004 I No fh*igs thls..-ter 4Qf2003 I No fh*Gs this CJBter Reactor Safety Mitigating Systems Barrier Integrity Emergency Preparedness Radiation Safety Occupational Radiation Safety Public Radiation Safety Most Significant Inspection Findings I No1na"Qs ttis CJ,arter I Nofndllngs ttis..-ter 1=-= 1=-=

I Nomcrgs

'* IJ,llrter I No fildirgs thlsipner 1~= 1:s:

I Nofndllngs thls..-mr 1=-= 1=-=

I Nofndllngs thls~r 1~= 1=-=

Miscellaneous findings Additional Inspection & Assessment Information

+ List of Inspection Reports Safeguarc Physical Protectio1 (NOT PUBL

+ Assessment Reports/Inspection Plans:

30/2004

+ List of Assessment Letters/I nsp e cti on PI ans 20/2004 10/2004 40/2003

+ Cross Reference Of Assessment Reports Last Modified: December 29, 2004

Byron 2 4Q/2004 Performance Summary Page 1 of 2 4Q/2004 Performance Summary - Byron 2 Initiating Events Inspection Findings

¥ Current Action Matrix Column:

Licensee Response Assessment Reports Reactor Radiation Safety Safety

~~

T T

Mitigating

~

Barrier Emergency Systems Integrity Preparedness Occupational Public Radiation Radiation Safety Safety Performance Indicators Performance Indicators

¥ Safeguards Physical Protection (NOT PUBLIC)

Last Modified: March 9, 2005 Legend: R=Red W=White T=Thresho1ds under deve1op:ment N=Not 1lpp1icab1e Y~e11ow G=Green I=Insuf ficient data to ca1cu1ate PI U=Unique Design

Action Matrix Summary l Inspection Findings Summary l PI Summary l Reactor Oversight Process Page 2 of 2 4Q/2004 Performance Summary - Byron 2 Initiating Events 4Qf2004 I:::

3Qf2004 I No film-gs this~

2Qf2004 I No fhdllngs thls..-ter 1Qf2004 I No fh*Gs this~

Reactor Safety Mitigating Systems Barrier Integrity Emergency Preparedness Radiation Safety Occupational Radiation Safety Public Radiation Safety Most Significant Inspection Findings I

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Miscellaneous findings Additional Inspection & Assessment Information

+ List of Inspection Reports Safeguarc Physical Protectio1 (NOT PUBL

+ Assessment Reports/Inspection Plans:

40/2004

+ List of Assessment Letters/I nsp e cti on PI ans 30/2004 20/2004 10/2004

+ Cross Reference Of Assessment Reports Last Modified: March 9, 2005

Byron 2 1Q/2005 Performance Summary Page 1 of 2 1Q/2005 Performance Summary - Byron 2 Initiating Events Inspection Findings

¥ Current Action Matrix Column:

Licensee Response Assessment Reports Reactor Radiation Safety Safety

~~

T T

Mitigating

~

Barrier Emergency Systems Integrity Preparedness Occupational Public Radiation Radiation Safety Safety Performance Indicators Performance Indicators

¥ Safeguards Physical Protection (NOT PUBLIC)

Last Modified: June 17, 2005 Legend: R=Red W=White T=Thresho1ds under deve1op:ment N=Not 1lpp1icab1e Y~e11ow G=Green I=Insuf ficient data to ca1cu1ate PI U=Unique Design

Action Matrix Summary l Inspection Findings Summary l PI Summary l Reactor Oversight Process Page 2 of 2 1Q/2005 Performance Summary - Byron 2 Initiating Events 1Qf2005 I:::

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No fi"ldilgs this IJ8ter" I No1na"Qs tis IJ,larblr I No1na"Qs

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Additional Inspection & Assessment Information

+ List of Inspection Reports Safeguarc Physical Protectio1 (NOT PUBL

+ Assessment Reports/Inspection Plans:

10/2005

+ List of Assessment Letters/I nsp e cti on PI ans 40/2004 30/2004 20/2004

+ Cross Reference Of Assessment Reports Last Modified: June 17, 2005

Byron 2 2Q/2005 Performance Summary Page 1 of 2 2Q/2005 Performance Summary - Byron 2 Initiating Events Inspection Findings

¥ Current Action Matrix Column:

Licensee Response Assessment Reports Reactor Radiation Safety Safety

~~

T T

Mitigating

~

Barrier Emergency Systems Integrity Preparedness Occupational Public Radiation Radiation Safety Safety Performance Indicators Performance Indicators

¥ Safeguards Physical Protection (NOT PUBLIC)

Last Modified: Al)gl)st 3, 2005 Legend: R=Red W=White T=Thresho1ds under deve1op:ment N=Not 1lpp1icab1e Y~e11ow G=Green I=Insuf ficient data to ca1cu1ate PI U=Unique Design

Action Matrix Summary l Inspection Findings Summary l PI Summary l Reactor Oversight Process Page 2 of 2 2Q/2005 Performance Summary - Byron 2 Initiating Events 2012005 10120051 No film,gs 111s IJJSl:er 4012004 I No,niavs 111s..-t*

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Miscellaneous findings Additional Inspection & Assessment Information

+ List of Inspection Reports Safeguarc.

Physical Protectio1 (NOT PUBL

+ Assessment Reports/Inspection Plans:

20/2005

+ List of Assessment Letters/I nsp e cti on PI ans 10/2005 40/2004 30/2004

+ Cross Reference Of Assessment Reports Last Modified: A1Jg1Jst 24, 2005

Byron 2 3Q/2005 Performance Summary Page 1 of 2 3Q/2005 Performance Summary - Byron 2 Initiating Events Inspection Findings

¥ Current Action Matrix Column:

Licensee Response Assessment Reports Reactor Radiation Safety Safety

~~

T T

Mitigating

~

Barrier Emergency Systems Integrity Preparedness Occupational Public Radiation Radiation Safety Safety Performance Indicators Performance Indicators

¥ Safeguards Physical Protection (NOT PUBLIC)

Last Modified: November 3, 2005 Legend: R=Red W=White T=Thresho1ds under deve1op:ment N=Not 1lpp1icab1e Y~e11ow G=Green I=Insuf ficient data to ca1cu1ate PI U=Unique Design

Action Matrix Summary l Inspection Findings Summary l PI Summary l Reactor Oversight Process Page 2 of 2 3Q/2005 Performance Summary - Byron 2 Initiating Events 30!20051 :S':

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Miscellaneous findings Additional Inspection & Assessment Information

+ List of Inspection Reports Safeguarc.

Physical Protectio1 (NOT PUBL

+ Assessment Reports/Inspection Plans:

30/2005

+ List of Assessment Letters/I nsp e cti on PI ans 20/2005 10/2005 40/2004

+ Cross Reference Of Assessment Reports Last Modified: November 30, 2005

Byron 2 4Q/2005 Performance Summary Page 1 of 2 4Q/2005 Performance Summary - Byron 2 Initiating Events Inspection Findings

¥ Current Action Matrix Column:

Licensee Response Assessment Reports Reactor Radiation Safety Safety

~~

T T

Mitigating

~

Barrier Emergency Systems Integrity Preparedness Occupational Public Radiation Radiation Safety Safety Performance Indicators Performance Indicators

¥ Safeguards Physical Protection (NOT PUBLIC)

Last Modified: Jan1Jary 30, 2006 Legend: R=Red W=White T=Thresho1ds under deve1op:ment N=Not 1lpp1icab1e Y~e11ow G=Green I=Insuf ficient data to ca1cu1ate PI U=Unique Design

Action Matrix Summary l Inspection Findings Summary l PI Summary l Reactor Oversight Process Page 2 of 2 4Q/2005 Performance Summary - Byron 2 Initiating Events 4012005 30120051 No film,gs 111s IJJSl:er 2012005 10120051 No fhdllngs 1111 IJBl:er Reactor Safety Mitigating Barrier Systems Integrity Emergency Preparedness Radiation Safety Occupational Public Radiation Radiation Safety Safety Most Significant Inspection Findings 1

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+ List of Inspection Reports Safeguarc.

Physical Protectio1 (NOT PUBL

+ Assessment Reports/Inspection Plans:

40/2005

+ List of Assessment Letters/I nsp e cti on PI ans 30/2005 20/2005 10/2005

+ Cross Reference Of Assessment Reports Last Modified: March 3, 2006

Byron 2 1Q/2006 Performance Summary Page 1 of 2 1Q/2006 Performance Summary - Byron 2 Initiating Events Inspection Findings

¥ Current Action Matrix Column:

Licensee Response Assessment Reports Reactor Radiation Safety Safety

~~

T T

Mitigating

~

Barrier Emergency Systems Integrity Preparedness Occupational Public Radiation Radiation Safety Safety Performance Indicators Performance Indicators

¥ Safeguards Physical Protection (NOT PUBLIC)

Last Modified: May 5, 2006 Legend: R=Red W=White T=Thresho1ds under deve1op:ment N=Not 1lpp1icab1e Y~e11ow G=Green I=Insuf ficient data to ca1cu1ate PI U=Unique Design

Inspection & Assessment Information l Action Matrix Summary l Inspection Findings Summary l PI Summary l Reactor Oversight Process Page 2 of 2 1Q/2006 Performance Summary - Byron 2 Initiating Events 10!20061 :S':

40!2005 30f2005 I No,niavs tHs..-ter 20!2005 Reactor Safety Mitigating Barrier Systems Integrity Emergency Preparedness Radiation Safety Occupational Public Radiation Radiation Safety Safety Most Significant Inspection Findings I

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Miscellaneous findings Additional Inspection & Assessment Information

+ List of Inspection Reports Safeguarc.

Physical Protectio1 (NOT PUBL

+ Assessment Reports/Inspection Plans:

10/2006

+ List of Assessment Letters/I nsp e cti on PI ans 40/2005 30/2005 20/2005

+ Cross Reference Of Assessment Reports Last Modified: May 25, 2006

Byron 2 2Q/2006 Performance Summary Page 1 of 2 2Q/2006 Performance Summary - Byron 2 Initiating Events Inspection Findings

¥ Current Action Matrix Column:

Regulatory Response Assessment Reports Reactor Radiation

~ Mitigating Systems Heat Removal System (lJlJ)

Safety

~~

~

Barrier Emergency Integrity Preparedness Performance Indicators Safety T

T 0cc upat ional Public Radiation Radiation Safety Safety Performance Indicators

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Last Modified: A1.Jg1.Jst 2, 2006 Legend : R=Re d W=Wh.i t e T=Thres holds under de ve loprnen t N=No t 11.ppl ic able Y=Ye11ow G=Green I=Insufficient data to calculate PI U=Unique Design

Action Matrix Summary l Inspection Findings Summary l PI Summary l Reactor Oversight Process Page 2 of 2 2Q/2006 Performance Summary - Byron 2

Byron 2 3Q/2006 Performance Summary Page 1 of 2 3Q/2006 Performance Summary - Byron 2 Initiating Events Current Action Matrix Column:

Inspection Findings y

Reactor Safety Mitigating Systems Barrier Integrity Regulatory Response Assessment Reports Radiation Emergency Preparedness Safety T

T 0cc upat ional Public Radiation Radiation Safety Safety Performance Indicators Heat Removal System (lW)

Performance Indicators y

Safeguards Physical Protection (NOT PUBLIC)

Last Modified: November 6, 2006 Legend : R=Red W=Wh.ite T=Thresho1ds under development N=Not Jl.pp1icab1e Y=Ye11ow G=Green I=Insufficient data to ca1cu1ate PI U=Unique Design

Action Matrix Summary l Inspection Findings Summary l PI Summary l Reactor Oversight Process Page 2 of 2 3Q/2006 Performance Summary - Byron 2 Initiating Events Reactor Safety Mitigating Systems Barrier Integrity Emergency Preparedness Radiation Safety T

T 0cc upat ional Public Radiation Radiation Safety Safety Safeguards Physical Protection (NOT PUBLIC)

Most Significant Inspection Findings 30120061 :. =

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Additional Inspection & Assessment Information

+ Assessment Reports/Inspection Plans:

30/2006 20/2006 10/2006 40/2005

+ Cross Reference Of Assessment Reports Last Modified: December 13, 2006

+ List of Inspection Reports

+ List of Assessment Letters/I nsp e cti on PI ans

+ Baseline Inspection Completion Information

Byron 2 4Q/2006 Performance Summary Page 1 of 2 4Q/2006 Performance Summary - Byron 2 Initiating Events Current Action Matrix Column:

Inspection Findings y

Reactor Safety Mitigating Systems Barrier Integrity Regulatory Response Assessment Reports Radiation Emergency Preparedness Safety T

T 0cc upat ional Public Radiation Radiation Safety Safety Performance Indicators Heat Removal System (lW)

Performance Indicators y

Safeguards Physical Protection (NOT PUBLIC)

Last Modified: Febwary 6, 2007 Legend : R=Red W=Wh.ite T=Thresho1ds under development N=Not Jl.pp1icab1e Y=Ye11ow G=Green I=Insufficient data to ca1cu1ate PI U=Unique Design

Action Matrix Summary l Inspection Findings Summary l PI Summary l Reactor Oversight Process Page 2 of 2 4Q/2006 Performance Summary - Byron 2 Initiating Events Reactor Safety Mitigating Systems Barrier Integrity Emergency Preparedness Radiation Safety T

T 0cc upat ional Public Radiation Radiation Safety Safety Safeguards Physical Protection (NOT PUBLIC)

Most Significant Inspection Findings 40120061 :. =

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Additional Inspection & Assessment Information

+ Assessment Reports/Inspection Plans:

40/2006 30/2006 20/2006 10/2006

+ Cross Reference Of Assessment Reports Last Modified: March 1, 2007

+ List of Inspection Reports

+ List of Assessment Letters/I nsp e cti on PI ans

+ Baseline Inspection Completion Information

Byron 2 1Q/2007 Performance Summary Initiating Events Current Action Matrix Column:

Inspection Findings

¥ Reactor Safety Mitigating Sy.stems Barrier Integrity Regulatory Response Assessment Reports Radiation Emergency P reparedne.s.s Safety i

i Occupational Public Radiation Radiation Safety Safety Performance Indicators Heat Removal System (lflf)

Performance Indicators

¥ Safeguards Physical Protection (NOT PUBLIC)

Last Modified: Ji.me 1, 2007 Legend : R=R.e d W=Wh.i t e T=Thres ho1 ds Wlder de ve 1oprnen t N=No t llpp1 ic ab1 e Y=Ye11ow G=Green I=Insufficient data to ca1cu1ate PI U=Unique Design

Action Matrix Summary l Inspection Findings Summary l PI Summary l Reactor Oversight Process

Byron 2 2Q/2007 Performance Summary Initiating Events Current Action Matrix Column:

Inspection Findings

¥ Reactor Safety Mitigating Sy.stems Barrier Integrity Regulatory Response Assessment Reports Radiation Emergency P reparedne.s.s Safety i

i Occupational Public Radiation Radiation Safety Safety Performance Indicators Heat Removal System (lflf)

Performance Indicators

¥ Safeguards Physical Protect ion!

Security Last Modified: A/../g/../st 6, 2007 Legend : R=R.e d W=Wh.i t e T=Thres ho1 ds Wlder de ve 1oprnen t N=No t llpp1 ic ab1 e Y=Ye11ow G=Green I=Insufficient data to ca1cu1ate PI U=Unique Design

Action Matrix Summary l Inspection Findings Summary l PI Summary l Reactor Oversight Process Initiating Events Reactor Safety Mitigating Systems Barrier Integrity Emergency Preparedness Radiation Safety T

T 0cc upat ional Public Radiation Radiation Safety Safety Safeguards Physical Protectiorl Security Most Significant Inspection Findings 20!2007 1=*=

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Additional Inspection & Assessment Information

+ Assessment Reports/Inspection Plans:

20/2007 10/2007 40/2006 30/2006

+ Cross Reference Of Assessment Reports Last Modified: August 24, 2007

+ List of Inspection Reports (IR)

+ List of Security IR Cover Letters

+ List of Assessment Letters/I nsp e cti on PI ans

+ Baseline Inspection Completion Information

Byron 2 3Q/2007 Performance Summary Initiating Events Current Action Matrix Column:

Inspection Findings

¥ Reactor Safety Mitigating Sy.stems Barrier Integrity Regulatory Response Assessment Reports Radiation Emergency P reparedne.s.s Safety i

i Occupational Public Radiation Radiation Safety Safety Performance Indicators Heat Removal System (lflf)

Performance Indicators

¥ Safeguards Physical Protect ion!

Security Last Modified: December 7, 200 7 Legend : R=R.e d W=Wh.i t e T=Thres ho1 ds Wlder de ve 1oprnen t N=No t llpp1 ic ab1 e Y=Ye11ow G=Green I=Insufficient data to ca1cu1ate PI U=Unique Design

Action Matrix Summary l Inspection Findings Summary l PI Summary l Reactor Oversight Process Initiating Events Reactor Safety Mitigating Systems Barrier Integrity Emergency Preparedness Radiation Safety T

T 0cc upat ional Public Radiation Radiation Safety Safety Safeguards Physical Protectiorl Security Most Significant Inspection Findings 30!20071 :1s =

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tta:~ster 1:s: 1:11:

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10!20071 :. =

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Miscellaneous findings Additional Inspection & Assessment Information

+ Assessment Reports/Inspection Plans:

30/2007 20/2007 10/2007 40/2006

+ Cross Reference Of Assessment Reports Last Modified: December 7, 2007

+ List of Inspection Reports (IR)

+ List of Security IR Cover Letters

+ List of Assessment Letters/I nsp e cti on PI ans

+ Baseline Inspection Completion Information

Byron 2 4Q/2007 Performance Summary Initiating Events Current Action Matrix Column:

Inspection Findings

¥ Reactor Safety Mitigating Sy.stems Barrier Integrity Regulatory Response Assessment Reports Radiation Emergency P reparedne.s.s Safety i

i Occupational Public Radiation Radiation Safety Safety Performance Indicators Heat Removal System (lflf)

Performance Indicators

¥ Safeguards Physical Protect ion!

Security Last Modified: Febwari; 4, 2008 Legend : R=R.e d W=Wh.i t e T=Thres ho1 ds Wlder de ve 1oprnen t N=No t llpp1 ic ab1 e Y=Ye11ow G=Green I=Insufficient data to ca1cu1ate PI U=Unique Design

Action Matrix Summary l Inspection Findings Summary l PI Summary l Reactor Oversight Process Initiating Events Reactor Safety Mitigating Systems Barrier Integrity Emergency Preparedness Radiation Safety T

T 0cc upat ional Public Radiation Radiation Safety Safety Safeguards Physical Protectiorl Security Most Significant Inspection Findings 40!20071 :. = 1 Noflrdlgs

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Miscellaneous findings Additional Inspection & Assessment Information

+ Assessment Reports/Inspection Plans:

40/2007 30/2007 20/2007 10/2007

+ Cross Reference Of Assessment Reports Last Modified: February 4, 2008

+ List of Inspection Reports (IR)

+ List of Security IR Cover Letters

+ List of Assessment Letters/I nsp e cti on PI ans

+ Baseline Inspection Completion Information

Byron 2 1Q/2008 Performance Summary Initiating Events Current Action Matrix Column:

Inspection Findings

¥ Reactor Safety Mitigating Systems Barrier Integrity Regulatory Response Assessment Reports Emergency Preparedness Radiation Safety 0cc upat ional Radiation Safety Public Radiation Safety Performance Indicators Performance Indicators

¥ Safeguards Physical Protectiorl Security Last Modified: April 30, 2008 Legend: R=Red W=White T=Thresho1ds under deve1opment N=Not 11.pp1icab1e Y-=fe11ow G=Green I=Insufficient data to ca1cu1ate PI U=Unique Design

Action Matrix Summary l Inspection Findings Summary l PI Summary l Reactor Oversight Process

Byron 2 2Q/2008 Performance Summary Initiating Events Current Action Matrix Column:

Inspection Findings

¥ Reactor Safety Mitigating Systems Barrier Integrity Regulatory Response Assessment Reports Emergency Preparedness Radiation Safety 0cc upat ional Radiation Safety Public Radiation Safety Performance Indicators Performance Indicators

¥ Safeguards Physical Protectiorl Security Last Modified: Al)gl)st 4, 2008 Legend: R=Red W=White T=Thresho1ds under deve1opment N=Not 11.pp1icab1e Y-=fe11ow G=Green I=Insufficient data to ca1cu1ate PI U=Unique Design

Action Matrix Summary l Inspection Findings Summary l PI Summary l Reactor Oversight Process

Byron 2 3Q/2008 Performance Summary Initiating Events Current Action Matrix Column:

Inspection Findings y

Reactor Safety Mitigating Systems Barrier Integrity Regulatory Response Assessment Reports Radiation Emergency Preparedness Safety T

T 0cc upat ional Public Radiation Radiation Safety Safety Performance Indicators Performance Indicators y

Safeguards Security Last Modified: November 26, 2008 Legend: R=Red W=White T=Thresho1ds Wlder deve1opment N=Not il.pp1icab1e Y~e11ow G=Green I=Insufficient data to ca1cu1ate PI U=Unique Design

Action Matrix Summary l Inspection Findings Summary l PI Summary l Reactor Oversight Process Reactor Safety Radiation Safety Safeguards

~~

T T

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Barrier Emergency Events Systems Integrity Preparedness Occupational Public Radiation Radiation Safety Safety Security Most Significant Inspection Findings 30!2008 1:s= 1 Noftldngs tNsqlB'ter 1:s=

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+ Assessment Reports/Inspection Plans:

30/2008 20/2008 10/2008 40/2007

+ Cross Reference Of Assessment Reports Last Modified: November 26, 2008

+ List of Inspection Reports (IR)

+ List of Security IR Cover Letters

+ List of Assessment Letters/I nsp e cti on PI ans

+ Baseline Inspection Completion Information

Byron 2 4Q/2008 Performance Summary Initiating Events Current Action Matrix Column:

Inspection Findings y

Reactor Safety Mitigating Systems Barrier Integrity Regulatory Response Assessment Reports Radiation Emergency Preparedness Safety T

T 0cc upat ional Public Radiation Radiation Safety Safety Performance Indicators Last Modified: Febrnary 4, 2009 Performance Indicators y

Safeguards Security

Legend: R=Red W=White T=Thresho1ds under deve1opment N=Not 1lpp1icab1e Y=Ye11ow G=Green I=Insufficient data to ca1cu1ate PI U=Unique Design Reactor Safety Radiation Safety Safeguards

~~

T T

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Barrier Emergency Events Systems Integrity Preparedness 0cc upat ional Public Radiation Radiation Safety Safety Security Most Significant Inspection Findings INoftld~

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Additional Inspection & Assessment Information

+ Assessment Reports/Inspection Plans:

40/2008 30/2008 20/2008 10/2008

+ Cross Reference Of Assessment Reports Last Modified: April 7, 2009

+ List of Inspection Reports (IR)

+ List of Security IR Cover Letters

+ List of Assessment Letters/I nsp e cti on PI ans

+ Baseline Inspection Completion Information

Action Matrix Summary l Inspection Findings Summary l PI Summary l Reactor Oversight Process

Byron 2 1Q/2009 Performance Summary Initiating Events Current Action Matrix Column:

Inspection Findings y

Reactor Safety Mitigating Systems Barrier Integrity Regulatory Response Assessment Reports Radiation Emergency Preparedness Safety T

T 0cc upat ional Public Radiation Radiation Safety Safety Performance Indicators Last Modified: May 1, 2009 Performance Indicators y

Safeguards Security

Legend: R=Red W=White T=Thresho1ds under deve1opment N=Not 1lpp1icab1e Y=Ye11ow G=Green I=Insufficient data to ca1cu1ate PI U=Unique Design Reactor Safety Radiation Safety Safeguards

~~

T T

Initiating f-)

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Barrier Emergency Events Systems Integrity Preparedness 0cc upat ional Public Radiation Radiation Safety Safety Security Most Significant Inspection Findings INoftld~

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Miscellaneous findings Additional Inspection & Assessment Information

+ Assessment Reports/Inspection Plans:

10/2009 40/2008 30/2008 20/2008

+ Cross Reference Of Assessment Reports Last Modified: May 28, 2009

+ List of Inspection Reports (IR)

+ List of Security IR Cover Letters

+ List of Assessment Letters/I nsp e cti on PI ans

+ Baseline Inspection Completion Information

Action Matrix Summary l Inspection Findings Summary l PI Summary l Reactor Oversight Process

Byron 2 2Q/2009 Performance Summary Initiating Events Current Action Matrix Column:

Inspection Findings y

Reactor Safety Mitigating Systems Barrier Integrity Regulatory Response Assessment Reports Radiation Emergency Preparedness Safety T

T 0cc upat ional Public Radiation Radiation Safety Safety Performance Indicators Last Modified: August 25, 2009 Performance Indicators y

Safeguards Security

Legend: R=Red W=White T=Thresho1ds under deve1opment N=Not 1lpp1icab1e Y=Ye11ow G=Green I=Insufficient data to ca1cu1ate PI U=Unique Design Reactor Safety Radiation Safety Safeguards

~~

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Barrier Emergency Events Systems Integrity Preparedness 0cc upat ional Public Radiation Radiation Safety Safety Security Most Significant Inspection Findings INoftld~

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+ Assessment Reports/Inspection Plans:

20/2009 10/2009 40/2008 30/2008

+ Cross Reference Of Assessment Reports Last Modified: A1.Jg1.Jst 31, 2009

+ List of Inspection Reports (IR)

+ List of Security IR Cover Letters

+ List of Assessment Letters/I nsp e cti on PI ans

+ Baseline Inspection Completion Information

Action Matrix Summary l Inspection Findings Summary l PI Summary l Reactor Oversight Process

Byron 2 3Q/2009 Performance Summary Initiating Events Inspection Findings

¥ Reactor Safety Mitigating Systems Barrier Integrity Action Matrix Column:

Licensee Response Assessment Reports Radiation Emergency Preparedness Safety T

T Occupational Public Radiation Radiation Safety Safety Performance Indicators Performance Indicators

¥ Safeguards Security Last Modified: November 30, 2009 Legend: R=Red W=White T=Thresho1ds under deve1op:ment N=Not 1lpp1icab1e Y=Ye11ow G=Green I=Insufficient data to ca1cu1ate PI U=Unigue Design

Action Matrix Summary l Inspection Findings Summary l PI Summary l Reactor Oversight Process Initiating Events Reactor Safety Mitigating Systems Barrier Integrity Emergency Preparedness Radiation Safety Occupational Radiation Safety Public Radiation Safety Safeguarc.

Security Most Significant Inspection Findings 3012009 I No1na"Qs ttis~

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+ Assessment Reports/Inspection Plans:

30/2009 20/2009 10/2009 40/2008

+ Cross Reference Of Assessment Reports Last Modified: December 10, 2009

+ List of Inspection Reports (IR)

+ List of Security IR Cover Letters

+ List of Assessment Letters/I nsp e cti on PI ans

+ Baseline Inspection Completion Information

Byron 2 4Q/2009 Performance Summary Initiating Events Inspection Findings

¥ Action Matrix Column:

Licensee Response Assessment Reports Reactor Radiation Safety Safety

~~

T T

~ Mitigating _.

Barrier Emergency Systems Integrity Preparedness 0cc upat ional Public Radiation Radiation Safety Safety Performance Indicators Performance Indicators

¥ Safeguards Security Last Modified: March 5, 2010 Legend: R=Red W=White T=Thresho1ds under deve1opment N=Not 11.pp1icab1e Y=Ye11ow G=Green I=Insufficient data to ca1cu1ate PI U=Unique Design

Action Matrix Summary l Inspection Findings Summary l PI Summary l Reactor Oversight Process

Byron 2 1Q/2010 Performance Summary Initiating Events Inspection Findings

¥ Action Matrix Column:

Licensee Response Assessment Reports Reactor Radiation Safety Safety

~~

T T

~ Mitigating _.

Barrier Emergency Systems Integrity Preparedness 0cc upat ional Public Radiation Radiation Safety Safety Performance Indicators Performance Indicators

¥ Safeguards Security Last Modified: April 26, 2010 Legend: R=Red W=White T=Thresho1ds under deve1opment N=Not 11.pp1icab1e Y=Ye11ow G=Green I=Insufficient data to ca1cu1ate PI U=Unique Design

Action Matrix Summary l Inspection Findings Summary l PI Summary l Reactor Oversight Process

Byron 2 2Q/2010 Performance Summary Initiating Events Inspection Findings

¥ Action Matrix Column:

Licensee Response Assessment Reports Reactor Radiation Safety Safety

~~

T T

~ Mitigating _.

Barrier Emergency Systems Integrity Preparedness 0cc upat ional Public Radiation Radiation Safety Safety Performance Indicators Performance Indicators

¥ Safeguards Security Last Modified: JIJ/y 26, 2010 Legend: R=Red W=White T=Thresho1ds under deve1opment N=Not 11.pp1icab1e Y=Ye11ow G=Green I=Insufficient data to ca1cu1ate PI U=Unique Design

Action Matrix Summary l Inspection Findings Summary l PI Summary l Reactor Oversight Process

Byron 2 3Q/2010 Performance Summary Initiating Events Inspection Findings

¥ Action Matrix Column:

Licensee Response Assessment Reports Reactor Radiation Safety Safety

~~

T T

~ Mitigating _.

Barrier Emergency Systems Integrity Preparedness 0cc upat ional Public Radiation Radiation Safety Safety Performance Indicators Performance Indicators

¥ Safeguards Security Last Modified: October 25, 2010 Legend: R=Red W=White T=Thresho1ds under deve1opment N=Not 11.pp1icab1e Y=Ye11ow G=Green I=Insufficient data to ca1cu1ate PI U=Unique Design

Action Matrix Summary l Inspection Findings Summary l PI Summary l Reactor Oversight Process

Byron 2 4Q/2010 Performance Summary Initiating Events Inspection Findings

¥ Action Matrix Column:

Licensee Response Assessment Reports Reactor Radiation Safety Safety

~~

T T

~ Mitigating _.

Barrier Emergency Systems Integrity Preparedness 0cc upat ional Public Radiation Radiation Safety Safety Performance Indicators Performance Indicators

¥ Safeguards Security Last Modified: Jamaty 24, 2011 Legend: R=Red W=White T=Thresho1ds under deve1opment N=Not 11.pp1icab1e Y=Ye11ow G=Green I=Insufficient data to ca1cu1ate PI U=Unique Design

Action Matrix Summary l Inspection Findings Summary l PI Summary l Reactor Oversight Process

Byron 2 1Q/2011 Performance Summary Initiating Events Inspection Findings

¥ Action Matrix Column:

Regulatory Response Assessment Reports Reactor Radiation Safety Safety

~~

T T

~ Mitigating _.

Barrier Emergency Systems Integrity Preparedness 0cc upat ional Public Radiation Radiation Safety Safety Performance Indicators Performance Indicators

¥ Safeguards Security Last Modified: May 4, 2011 Legend: R=Red W=White T=Thresho1ds under deve1opment N=Not 11.pp1icab1e Y=Ye11ow G=Green I=Insufficient data to ca1cu1ate PI U=Unique Design

Action Matrix Summary l Inspection Findings Summary l PI Summary l Reactor Oversight Process

Byron 2 2Q/2011 Performance Summary Initiating Events Inspection Findings

¥ Action Matrix Column:

Regulatory Response Assessment Reports Reactor Radiation Safety Safety

~~

T T

~ Mitigating _.

Barrier Emergency Systems Integrity Preparedness 0cc upat ional Public Radiation Radiation Safety Safety Performance Indicators Performance Indicators

¥ Safeguards Security Last Modified: AiJgiJst 16, 2011 Legend: R=Red W=White T=Thresho1ds under deve1opment N=Not 11.pp1icab1e Y=Ye11ow G=Green I=Insufficient data to ca1cu1ate PI U=Unique Design

Action Matrix Summary l Inspection Findings Summary l PI Summary l Reactor Oversight Process

Byron 2 3Q/2011 Performance Summary Initiating Events Inspection Findings

¥ Action Matrix Column:

Regulatory Response Assessment Reports Reactor Radiation Safety Safety

~~

T T

~ Mitigating _.

Barrier Emergency Systems Integrity Preparedness 0cc upat ional Public Radiation Radiation Safety Safety Performance Indicators Performance Indicators

¥ Safeguards Security Last Modified: November 29, 2011 Legend: R=Red W=White T=Thresho1ds under deve1opment N=Not 11.pp1icab1e Y=Ye11ow G=Green I=Insufficient data to ca1cu1ate PI U=Unique Design

Action Matrix Summary l Inspection Findings Summary l PI Summary l Reactor Oversight Process

Byron 2 4Q/2011 Performance Summary Initiating Events Inspection Findings

¥ Action Matrix Column:

Licensee Response Assessment Reports Reactor Radiation Safety Safety

~~

T T

~ Mitigating _.

Barrier Emergency Systems Integrity Preparedness 0cc upat ional Public Radiation Radiation Safety Safety Performance Indicators Performance Indicators

¥ Safeguards Security Last Modified: March 2, 2012 Legend: R=Red W=White T=Thresho1ds under deve1opment N=Not 11.pp1icab1e Y=Ye11ow G=Green I=Insufficient data to ca1cu1ate PI U=Unique Design

Action Matrix Summary l Inspection Findings Summary l PI Summary l Reactor Oversight Process

Byron 2 1Q/2012 Performance Summary Initiating Events Inspection Findings

¥ Action Matrix Column:

Licensee Response Assessment Reports Reactor Radiation Safety Safety

~~

T T

~ Mitigating _.

Barrier Emergency Systems Integrity Preparedness 0cc upat ional Public Radiation Radiation Safety Safety Performance Indicators Performance Indicators

¥ Safeguards Security Last Modified: April 25, 2012 Legend: R=Red W=White T=Thresho1ds under deve1opment N=Not 11.pp1icab1e Y=Ye11ow G=Green I=Insufficient data to ca1cu1ate PI U=Unique Design

Action Matrix Summary l Inspection Findings Summary l PI Summary l Reactor Oversight Process

Byron 2 2Q/2012 Performance Summary Initiating Events Inspection Findings y

Reactor Safety Mitigating Systems Barrier Integrity Action Matrix Column:

Licensee Response Assessment Reports Radiation Emergency Preparedness Safety T

T 0cc upat ional Public Radiation Radiation Safety Safety Performance Indicators Last Modified: Al..!gust 2, 2012 Performance Indicators y

Safeguards Security l=ll'lauffieient.Data to Calculate Pt U=Uoique. Design Y=Yell ow C=Creen

'l"='l'breahoJ.da unde r deveJ.opmant N=:lifot ApplicabJ.e D=Discrepant

Action Matrix Summary l Inspection Findings Summary l PI Summary l Reactor Oversight Process

Byron 2 3Q/2012 Performance Summary 3Q/2012 Performance Summary - Byron 2 Page 1 of 3

3Q/2012 Performance Summary - Byron 2 Page 2 of 3 Legend : R=Red W==Whi t e G'l"G=Gr,eat e r 'l'han Gr,een I = I n auffi c i ent Data t o Ca l cul a t e PI U=Un i q ue Dea i,gn D=Di a crep ant Y=Yell ow G=Gr een T'='l'hreah ol d a unde r d ev e l opment N=Not Applicabl e Reactor Safety Radiation Safety Safeguards

~~

T T

Initiating _.

Mitigating _.

Barrier Emergency Events Systems Integrity Preparedness 0cc upat ional Public Radiation Radiation Safety Safety Security Most Significant Inspection Findings 3012012 No findings I No ft'dlp Noft'ldlnp 1=-=

1=-= 1:.1=

1=-=

this quarter thls..-ter tHs quarter 2012012 No findings this quarter 10!2012 Noft'ldlnp tHs quarter 40!2011 No findings Noft'ldlnp this quarter tHs quarter 1=-=

1=-=

1=-=

Miscellaneous findings 1=-=

1=-=

1=-=

1:.1=

1=-=

1:.1=

1=-=

1:.1=

1=-=

Additional Inspection & Assessment Information

+ Assessment Reports/Inspection Plans:

30/2012 20/2012 10/2012 40/2011

+ Cross Reference Of Assessment Reports Last Modified: November 30, 2012

+ List of Inspection Reports (IR)

+ List of Security IR Cover Letters

+ List of Assessment Letters/I nsp e cti on PI ans

+ Baseline Inspection Completion Information

Action Matrix Summary l Inspection Findings Summary l PI Summary l Reactor Oversight Process 3Q/2012 Performance Summary - Byron 2 Page 3 of 3

Byron 2 4Q/2012 Performance Summary 4Q/2012 Performance Summary - Byron 2 Page 1 of 2 Inspection Findings

¥ Action Matrix Column:

Licensee Response Assessment Reports Reactor Radiation Safety Safety

~~

T T

Initiating

~ Mitigating _.

Barrier Emergency Events Systems Integrity Preparedness 0cc upat ional Public Radiation Radiation Safety Safety Performance Indicators Last Modified: Febr1Jaty 19, 2013 Performance Indicators

¥ Safeguards Security CT-Oi-Oraater Than Ora1t1n I*In1u r ri c:i.n t Data to Calculate PI U-Unique Dali,qn

~

Action Matrix Summary l Inspection Findings Summary l PI Summary l Reactor Oversight Process 4Q/2012 Performance Summary - Byron 2 Page 2 of 2

Byron 2 1Q/2013 Performance Summary 1Q/2013 Performance Summary - Byron 2 Page 1 of 3

1Q/2013 Performance Summary - Byron 2 Page 2 of 3 Legend : R=Red W==Whi t e G'l"G=Gr,eat e r 'l'han Gr,een I = I n auffi c i ent Data t o Ca l cul a t e PI U=Un i q ue Dea i,gn D=Di a crep ant Y=Yell ow G=Gr een T'='l'hreah ol d a unde r d ev e l opment N=Not Applicabl e Reactor Safety Radiation Safety Safeguards

~~

T T

Initiating _.

Mitigating _.

Barrier Emergency Events Systems Integrity Preparedness 0cc upat ional Public Radiation Radiation Safety Safety Security Most Significant Inspection Findings 1012013 No findings Noft'ldlnp this quarter tHs quarter 4012012 No findings this quarter I No ft'dlp thls..-ter 3012012 No findings I No ft'dlp Noft'ldlnp this quarter thls..-ter tHs quarter 2012012 No findings this quarter 1=-=

1=-=

1=-=

1=-=

Miscellaneous findings 1=-=

1=-=

1=-=

1=-=

1:.1=

1=-=

1:.1=

1=-=

1:.1=

1=-=

1:.1=

1=-=

Additional Inspection & Assessment Information

+ Assessment Reports/Inspection Plans:

10/2013 40/2012 30/2012 20/2012

+ Cross Reference Of Assessment Reports Last Modified: J1Jne 4, 2013

+ List of Inspection Reports (IR)

+ List of Security IR Cover Letters

+ List of Assessment Letters/I nsp e cti on PI ans

+ Baseline Inspection Completion Information

Action Matrix Summary l Inspection Findings Summary l PI Summary l Reactor Oversight Process 1Q/2013 Performance Summary - Byron 2 Page 3 of 3

Byron 2 2Q/2013 Performance Summary 2Q/2013 Performance Summary - Byron 2 Page 1 of 3

2Q/2013 Performance Summary - Byron 2 Page 2 of 3 Legend : R=Red W==Whi t e G'l"G=Gr,eat e r 'l'han Gr,een I = I n auffi c i ent Data t o Ca l cul a t e PI U=Un i q ue Dea i,gn D=Di a crep ant Y=Yell ow G=Gr een T'='l'hreah ol d a unde r d ev e l opment N=Not Applicabl e Reactor Safety Radiation Safety Safeguards

~~

T T

Initiating _.

Mitigating _.

Barrier Emergency Events Systems Integrity Preparedness 0cc upat ional Public Radiation Radiation Safety Safety Security Most Significant Inspection Findings 2012013 No findings I No ft'dlp Noft'ldlnp 1=-=

1=-= 1:.1=

1=-=

this quarter thls..-ter tHs quarter 1=-=

1=-= 1:.1=

1=-=

1012013 No findings Noft'ldlnp this quarter tHs quarter 4012012 No findings this quarter

thls..-ter I No ft'dlp 1=-=

1=-= 1:.1=

1=-=

3012012 No findings I No ft'dlp Noft'ldlnp 1=-=

1=-= 1:.1=

1=-=

this quarter thls..-ter tHs quarter Miscellaneous findings Additional Inspection & Assessment Information

+ Assessment Reports/Inspection Plans:

20/2013 10/2013 40/2012 30/2012

+ Cross Reference Of Assessment Reports Last Modified: September 3, 2013

+ List of Inspection Reports (IR)

+ List of Security IR Cover Letters

+ List of Assessment Letters/I nsp e cti on PI ans

+ Baseline Inspection Completion Information

Action Matrix Summary l Inspection Findings Summary l PI Summary l Reactor Oversight Process 2Q/2013 Performance Summary - Byron 2 Page 3 of 3

Byron 2 3Q/2013 Performance Summary 3Q/2013 Performance Summary - Byron 2 Page 1 of 3

3Q/2013 Performance Summary - Byron 2 Page 2 of 3 Legend : R=Red W==Whi t e G'l"G=Gr,eat e r 'l'han Gr,een I = I n auffi c i ent Data t o Ca l cul a t e PI U=Un i q ue Dea i,gn D=Di a crep ant Y=Yell ow G=Gr een T'='l'hreah ol d a unde r d ev e l opment N=Not Applicabl e Reactor Safety Radiation Safety Safeguards

~~

T T

Initiating _.

Mitigating _.

Barrier Emergency Events Systems Integrity Preparedness 0cc upat ional Public Radiation Radiation Safety Safety Security Most Significant Inspection Findings 30!2013 2012013 No findings this quarter 1012013 No findings this quarter 4012012 No findings this quarter I No ft'dlp thls..-ter I No ft'dlp thls..-ter Noft'ldlnp tHs quarter Noft'ldlnp tHs quarter Noft'ldlnp tHs quarter 1=-=

1=-=

1:.1=

1=-=

1=-=

1=-=

1:.1=

1=-=

1=-=

1=-=

1:.1=

1=-=

1=-=

1=-=

1:.1=

1=-=

Miscellaneous findings Additional Inspection & Assessment Information

+ Assessment Reports/Inspection Plans:

30/2013 20/2013 10/2013 40/2012

+ Cross Reference Of Assessment Reports Last Modified: December 3, 2013

+ List of Inspection Reports (IR)

+ List of Security IR Cover Letters

+ List of Assessment Letters/I nsp e cti on PI ans

+ Baseline Inspection Completion Information

Action Matrix Summary l Inspection Findings Summary l PI Summary l Reactor Oversight Process 3Q/2013 Performance Summary - Byron 2 Page 3 of 3

Byron 2 4Q/2013 Performance Summary 4Q/2013 Performance Summary - Byron 2 Page 1 of 3

4Q/2013 Performance Summary - Byron 2 Page 2 of 3 Legend : R=Red W==Whi t e G'l"G=Gr,eat e r 'l'han Gr,een I = I n auffi c i ent Data t o Ca l cul a t e PI U=Un i q ue Dea i,gn D=Di a crep ant Y=Yell ow G=Gr een T'='l'hreah ol d a unde r d ev e l opment N=Not Applicabl e Reactor Safety Radiation Safety Safeguards

~~

T T

Initiating _.

Mitigating _.

Barrier Emergency Events Systems Integrity Preparedness 0cc upat ional Public Radiation Radiation Safety Safety Security Most Significant Inspection Findings 40!2013 1=-=

1=-=

1:.1=

1=-=

1=-=

1=-=

1:.1=

1=-=

30!2013 Noft'ldlnp tHs quarter 2012013 No findings this quarter 1=-=

1=-=

1:.1=

1=-=

1012013 No findings Noft'ldlnp this quarter tHs quarter 1=-=

Miscellaneous findings 1=-=

1:.1=

1=-=

Additional Inspection & Assessment Information

+ Assessment Reports/Inspection Plans:

40/2013 30/2013 20/2013 10/2013

+ Cross Reference Of Assessment Reports Last Modified: Febr1Jaty 24, 2014

+ List of Inspection Reports (IR)

+ List of Security IR Cover Letters

+ List of Assessment Letters/I nsp e cti on PI ans

+ Baseline Inspection Completion Information

Action Matrix Summary l Inspection Findings Summary l PI Summary l Reactor Oversight Process 4Q/2013 Performance Summary - Byron 2 Page 3 of 3

Byron 2 1Q/2014 Performance Summary 1Q/2014 Performance Summary - Byron 2 Page 1 of 3

1Q/2014 Performance Summary - Byron 2 Page 2 of 3 Legend : R=Red W==Whi t e G'l"G=Gr,eat e r 'l'han Gr,een I = I n auffi c i ent Data t o Ca l cul a t e PI U=Un i q ue Dea i,gn Y=Yell ow G=Gr een T'='l'hreah o l d a unde r d ev e l opment N=Not Applicabl e D=Di a cre p ant Reactor Safety Radiation Safety Safeguards

~~

T T

Initiating _.

Mitigating _.

Barrier Emergency Events Systems Integrity Preparedness 0cc upat ional Public Radiation Radiation Safety Safety Security Most Significant Inspection Findings 10!2014 I No ft'dlp Noft'ldlnp 1=-=

1=-=

1:.1=

1=-=

thls..-ter tHsquarter 40!2013 1=-=

1=-=

1:.1=

1=-=

1=-=

1=-=

1:.1=

1=-=

30!2013 Noft'ldlnp tHsquarter 2012013 No findings this quarter 1=-=

1=-=

1:.1=

1=-=

Miscellaneous findings Additional Inspection & Assessment Information

+ Assessment Reports/Inspection Plans:

10/2014 40/2013 30/2013 20/2013

+ Cross Reference Of Assessment Reports Last Modified: May 30, 2014

+ List of Inspection Reports (IR)

+ List of Security IR Cover Letters

+ List of Assessment Letters/I nsp e cti on PI ans

+ Baseline Inspection Completion Information

Action Matrix Summary l Inspection Findings Summary l PI Summary l Reactor Oversight Process 1Q/2014 Performance Summary - Byron 2 Page 3 of 3

Byron 2 2Q/2014 Performance Summary 2Q/2014 Performance Summary - Byron 2 Page 1 of 3

2Q/2014 Performance Summary - Byron 2 Page 2 of 3 Le gend : R=Red W=Whi te G'l'G=Gr,eater 'l'han Gr,een I = I n auffi ci ent Da ta to Ca l cul a t e PI U=Un i que Dea i,gn D=Di a cre p ant Y=Ye ll ow G=Gre en Initiating Events

'l'='l'hreahol d a unde r d e v e l opm=ll.t N=Not Applicabl e Reactor Safety Radiation Mitigating Systems Safety T

T Barrier Integrity Emergency Preparedness 0cc upat ional Public Radiation Radiation Safety Safety Most Significant Inspection Findings Safeguards Security 20!20141=-= 1=-= 1=-= 1=-= 1=-= 1=-= 1=-=

10!2014 40!2013 30!2013 1=-= 1=-=

1=-=

1=-=

1=-=

1=-=

Miscellaneous findings 1=-= 1=-= 1=-=

1=-= 1=-= 1=-=

1=-= 1=-= 1=-=

Additional Inspection & Assessment Information

+ Assessment Reports/Inspection Plans:

20/2014 10/2014 40/2013 30/2013

+ Cross Reference Of Assessment Reports Last Modified: August 29, 2014

+ List of Inspection Reports (IR)

+ List of Security IR Cover Letters

+ List of Assessment Letters/Inspection Plans

+ Baseline Inspection Completion Information

Action Matrix Summary l Inspection Findings Summary l PI Summary l Reactor Oversight Process 2Q/2014 Performance Summary - Byron 2 Page 3 of 3

Byron 2 3Q/2014 Performance Summary 3Q/2014 Performance Summary - Byron 2 Page 1 of 3

3Q/2014 Performance Summary - Byron 2 Page 2 of 3 Le gend : R=Red W=Whi te G'l'G=Gr,eater 'l'han Gr,een I = I n auffi ci ent Da ta to Ca l cul a t e PI U=Un i que Dea i,gn D=Di a cre p ant Y=Ye ll ow G=Gre en Initiating Events

'l'='l'hreahol d a unde r d e v e l opm=ll.t N=Not Applicabl e Reactor Safety Radiation Mitigating Systems Safety T

T Barrier Integrity Emergency Preparedness 0cc upat ional Public Radiation Radiation Safety Safety Most Significant Inspection Findings 30!20141=-= 1=-= 1=-= 1=-= 1=-= 1=-=

Safeguards Security 1=-=

20!20141=-= 1=-= 1=-= 1=-= 1=-= 1=-= 1=-=

10!2014 40!2013 1=-= 1=-= 1=-= 1=-= 1=-= 1=-=

1=-= 1=-= 1=-= 1=-=

Miscellaneous findings Additional Inspection & Assessment Information

+ Assessment Reports/Inspection Plans:

30/2014 20/2014 10/2014 40/2013

+ Cross Reference Of Assessment Reports Last Modified: November 26, 2014

+ List of Inspection Reports (IR)

+ List of Security IR Cover Letters

+ List of Assessment Letters/Inspection Plans

+ Baseline Inspection Completion Information

Action Matrix Summary l Inspection Findings Summary l PI Summary l Reactor Oversight Process 3Q/2014 Performance Summary - Byron 2 Page 3 of 3

Byron 2 4Q/2014 Performance Summary 4Q/2014 Performance Summary - Byron 2 Page 1 of 3

4Q/2014 Performance Summary - Byron 2 Page 2 of 3 Le gend : R=Red W=Whi te G'l'G=Gr,eater 'l'han Gr,een I = I n auffi ci ent Da ta to Ca l cul a t e PI U=Un i que Dea i,gn D=Di a cre p ant Y=Ye ll ow G=Gre en

'l'='l'hreahol d a unde r d e v e l opm=ll.t N=Not Applicabl e Initiating Events Reactor Safety Mitigating Systems Barrier Integrity Emergency Preparedness Radiation Safety Safeguards T

T 0cc upat ional Public Radiation Radiation Security Safety Safety Most Significant Inspection Findings 40!20141=-=

1=-= 1=-= 1=-=

30!20141=-= 1=-= 1=-= 1=-= 1=-= 1=-= 1=-=

20!20141=-= 1=-= 1=-= 1=-= 1=-= 1=-= 1=-=

10!2014 1=-= 1=-= 1=-= 1=-= 1=-= 1=-=

Miscellaneous findings Additional Inspection & Assessment Information

+ Assessment Reports/Inspection Plans:

40/2014 30/2014 20/2014 10/2014

+ Cross Reference Of Assessment Reports Last Modified: Febri.JBry 26, 2015

+ List of Inspection Reports (IR)

+ List of Security IR Cover Letters

+ List of Assessment Letters/Inspection Plans

+ Baseline Inspection Completion Information

Action Matrix Summary l Inspection Findings Summary l PI Summary l Reactor Oversight Process 4Q/2014 Performance Summary - Byron 2 Page 3 of 3

Byron 2 1Q/2015 Performance Summary 1Q/2015 Performance Summary - Byron 2 Page 1 of 3

1Q/2015 Performance Summary - Byron 2 Page 2 of 3 Legend : R=Red W=Wh i t e G~Gr eat e r 'l'han Gr,een I =I n auffi c i ent Data to Calculat e PI U=Uni que Deai,gn O=Diacrep ant Y=Yellow G=Green

'l'='l'hreahol d a unde r devel opment N=Not Applicable Initiating Events Reactor Safety Mitigating Systems Barrier Integrity Emergency Preparedness Radiation Safety Safeguards T

T Occupational Public Radiation Radiation Security Safety Safety Most Significant Inspection Findings 10!20151=-=

1=-=

40!20141=-=

30!20141=-= 1=-= 1=-=

20!20141=-= 1=-= 1=-=

1=-=

1=-=

1=-=

Miscellaneous findings 1=-=

1=-=

1=-=

1=-=

1=-=

1=-=

1=-=

1=-=

1=-=

1=-=

1=-=

1=-=

Additional Inspection & Assessment Information

+ Assessment Reports/Inspection Plans:

10/2015 40/2014 30/2014 20/2014

+ Cross Reference Of Assessment Reports Last Modified: June 16, 2015

+ List of Inspection Reports (IR)

+ List of Security IR Cover Letters

+ List of Assessment Letters/Inspection Plans

+ Baseline Inspection Completion Information

Action Matrix Summary l Inspection Findings Summary l PI Summary l Reactor Oversight Process 1Q/2015 Performance Summary - Byron 2 Page 3 of 3

Byron 2 2Q/2015 Performance Summary 2Q/2015 Performance Summary - Byron 2 Page 1 of 3

2Q/2015 Performance Summary - Byron 2 Page 2 of 3 Legend : R=Red W=Wh i t e G~Gr eat e r 'l'han Gr,een I =I n auffi c i ent Data to Calculat e PI U=Uni que Deai,gn O=Diacrep ant Y=Yellow G=Green

'l'='l'hreahol d a unde r devel opment N=Not Applicable Initiating Events Reactor Safety Mitigating Systems Barrier Integrity Emergency Preparedness Radiation Safety Safeguards T

T Occupational Public Radiation Radiation Security Safety Safety Most Significant Inspection Findings 20!20151=-= 1=-= 1=-=

10!20151=-=

1=-=

40!20141=-=

30!20141=-= 1=-= 1=-=

1=-=

1=-=

1=-=

Miscellaneous findings 1=-=

1=-=

1=-=

1=-=

1=-=

1=-=

1=-=

1=-=

1=-=

1=-=

1=-=

1=-=

Additional Inspection & Assessment Information

+ Assessment Reports/Inspection Plans:

20/2015 10/2015 40/2014 30/2014

+ Cross Reference Of Assessment Reports Last Modified: A1.Jg1.Jst 7, 2015

+ List of Inspection Reports (IR)

+ List of Security IR Cover Letters

+ List of Assessment Letters/Inspection Plans

+ Baseline Inspection Completion Information

Action Matrix Summary l Inspection Findings Summary l PI Summary l Reactor Oversight Process 2Q/2015 Performance Summary - Byron 2 Page 3 of 3

Byron 2 3Q/2015 Performance Summary 3Q/2015 Performance Summary - Byron 2 Page 1 of 3

3Q/2015 Performance Summary - Byron 2 Page 2 of 3 Legend : R=Red W=Wh i t e G~Gr eat e r 'l'han Gr,een I =I n auffi c i ent Data to Calculat e PI U=Uni que Deai,gn O=Diacrep ant Y=Yellow G=Green

'l'='l'hreahol d a unde r devel opment N=Not Applicable Initiating Events Reactor Safety Mitigating Systems Barrier Integrity Emergency Preparedness Radiation Safety Safeguards T

T Occupational Public Radiation Radiation Security Safety Safety Most Significant Inspection Findings 30!20151=-=

20!20151=-=

1=-=

10!20151=-=

1=-=

40!20141=-=

1=-=

1=-=

1=-=

Miscellaneous findings 1=-= 1=-=

1=-= 1=-=

1=-= 1=-=

1=-= 1=-=

Additional Inspection & Assessment Information

+ Assessment Reports/Inspection Plans:

30/2015 20/2015 10/2015 40/2014

+ Cross Reference Of Assessment Reports Last Modified: December 15, 2015

+ List of Inspection Reports (IR)

+ List of Security IR Cover Letters

+ List of Assessment Letters/Inspection Plans

+ Baseline Inspection Completion Information

Action Matrix Summary l Inspection Findings Summary l PI Summary l Reactor Oversight Process 3Q/2015 Performance Summary - Byron 2 Page 3 of 3

Byron 2 4Q/2015 Performance Summary 4Q/2015 Performance Summary - Byron 2 Page 1 of 3

4Q/2015 Performance Summary - Byron 2 Page 2 of 3 Legend : R=Red W=Whi t e G'l"G=Gr,eat e r 'l'han Gr,e en I = I n auffi c i ent Da ta to Ca l cul a t e PI U=Uni que Dea i,gn Y=Ye ll ow G=Green

'l'='l'hre ahol d a unde r d e v e l opment N=Not Applicabl e D=Di acrepant Reactor Safety Radiation Safety Safeguards

~~

T T

Initiating _.

Mitigating _.

Barrier Emergency Events Systems Integrity Preparedness 0cc upat ional Public Radiation Radiation Safety Safety Security Most Significant Inspection Findings 40!20151=-= 1=-= 1=-=

30!20151=-=

20!20151=-=

10!20151=-=

1=-=

1=-=

1=-=

1=-=

1=-=

Miscellaneous findings 1=-= 1=-=

1=-= 1=-=

1=-= 1=-=

1=-= 1=-=

Additional Inspection & Assessment Information

+ Assessment Reports/Inspection Plans:

40/2015 30/2015 20/2015 10/2015

+ Cross Reference Of Assessment Reports Last Modified: March 1, 2016

+ List of Inspection Reports (IR)

+ List of Security IR Cover Letters

+ List of Assessment Letters/I nsp e cti on PI ans

+ Baseline Inspection Completion Information

Action Matrix Summary l Inspection Findings Summary l PI Summary l Reactor Oversight Process 4Q/2015 Performance Summary - Byron 2 Page 3 of 3

Byron 2 1Q/2016 Performance Summary 1Q/2016 Performance Summary - Byron 2 Page 1 of 3

1Q/2016 Performance Summary - Byron 2 Page 2 of 3 Legend : R=Red W=Whi t e G'l"G=Gr,eat e r 'l'han Gr,e en I = I n auffi c i ent Da ta to Ca l cul a t e PI U=Uni que Dea i,gn Y=Ye ll ow G=Green

'l'='l'hre ahol d a unde r d e v e l opment N=Not Applicabl e D=Di acrepant Reactor Safety Radiation Safety Safeguards

~~

T T

Initiating _.

Mitigating _.

Barrier Emergency Events Systems Integrity Preparedness 0cc upat ional Public Radiation Radiation Safety Safety Security Most Significant Inspection Findings 10!20161=-=

1=-= 1=-= 1=-= 1=-= 1=-=

40!20151=-=

1=-= 1=-= 1=-= 1=-= 1=-=

30!20151=-=

1=-= 1=-= 1=-= 1=-=

20!20151=-=

1=-= 1=-= 1=-=

Miscellaneous findings Additional Inspection & Assessment Information

+ Assessment Reports/Inspection Plans:

10/2016 40/2015 30/2015 20/2015

+ Cross Reference Of Assessment Reports Last Modified: JIJ/y 11, 2016

+ List of Inspection Reports (IR)

+ List of Security IR Cover Letters

+ List of Assessment Letters/I nsp e cti on PI ans

+ Baseline Inspection Completion Information

Action Matrix Summary l Inspection Findings Summary l PI Summary l Reactor Oversight Process 1Q/2016 Performance Summary - Byron 2 Page 3 of 3

Byron 2 2Q/2016 Performance Summary 2Q/2016 Performance Summary - Byron 2 Page 1 of 3

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+ List of Security IR Cover Letters

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Action Matrix Summary l Inspection Findings Summary l PI Summary l Reactor Oversight Process 2Q/2016 Performance Summary - Byron 2 Page 3 of 3

Byron 2 3Q/2016 Performance Summary 3Q/2016 Performance Summary - Byron 2 Page 1 of 3

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+ List of Security IR Cover Letters

+ List of Assessment Letters/I nsp e cti on PI ans

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Action Matrix Summary l Inspection Findings Summary l PI Summary l Reactor Oversight Process 3Q/2016 Performance Summary - Byron 2 Page 3 of 3

Byron 2 4Q/2016 Performance Summary 4Q/2016 Performance Summary - Byron 2 Page 1 of 3

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+ List of Security IR Cover Letters

+ List of Assessment Letters/I nsp e cti on PI ans

+ Baseline Inspection Completion Information

Action Matrix Summary l Inspection Findings Summary l PI Summary l Reactor Oversight Process 4Q/2016 Performance Summary - Byron 2 Page 3 of 3

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Page Last Reviewed/Updated Wednesday, June 07, 2017 NRC: Byron 2 - Quarterly Performance Summary Page 3 of 4 Initiating Events Reactor Safety Mitigating Systems Barrier Integrity Emergency Preparedness Radiation Safety Occupational Radiation Safety Public Radiation Safety Most Significant Inspection Findings Miscellaneous findings Additional Inspection & Assessment Information

+ Assessment Letters:

+ Inspection Reports 20/2017 10/2017 40/2016 30/2016

+ Security Cover Letters

+ List of Assessment Letters Cl!rrent data as of Jl!ne 6, 2017 Legend : R=Red W=Whi t e G'!'IG=Gr eat e r 'l'han Gr,een I = I n auffi c i ent Data t o Ca l cul a t e PI Y=Ye llow G=Gr e en

'l'='l'hreahol d a unde r d ev e l op ment N=No t Applicabl e Safeguards Security U=Un i que Deai,gn D=Di ac-re p ant

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Page Last Reviewed/Updated Wednesday, June 07, 2017 Page 3 of 4 NRC: Byron 2 - Quarterly Performance Summary 10/19/2017 https://www.nrc.gov/reactors/operating/oversight/byro2/byro2-chart.html Initiating Events Reactor Safety Mitigating Systems Barrier Integrity Emergency Preparedness Radiation Safety Occupational Radiation Safety Public Radiation Safety Most Significant Inspection Findings Miscellaneous findings Additional Inspection & Assessment Information

+ Assessment Letters:

+ Inspection Reports 20/2017 10/2017 40/2016 30/2016

+ Security Cover Letters

+ List of Assessment Letters Cl!rrent data as of September 5, 2017 Legend : R=Red W=Whi t e G'!'IG=Gr eat e r 'l'han Gr,een I = I n auffi c i ent Data t o Ca l cul a t e PI Y=Ye llow G=Gr e en

'l'='l'hreahol d a unde r d ev e l op ment N=No t Applicabl e Safeguards Security U=Un i que Deai,gn D=Di ac-re p ant

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Page Last Reviewed/Updated Monday, November 06, 2017 NRC: Byron 2 - Quarterly Performance Summary Page 3 of 4 Initiating Events Reactor Safety Mitigating Systems Barrier Integrity Emergency Preparedness Radiation Safety Occupational Radiation Safety Public Radiation Safety Most Significant Inspection Findings Miscellaneous findings Additional Inspection & Assessment Information

+ Assessment Letters:

+ Inspection Reports 30/2017 20/2017 10/2017 40/2016

+ Security Cover Letters

+ List of Assessment Letters Clirrent data as of November 29, 2017 Legend : R=Red W=Whi t e G'!'IG=Gr eat e r 'l'han Gr,een I = I n auffi c i ent Data t o Ca l cul a t e PI Y=Ye llow G=Gr e en

'l'='l'hreahol d a unde r d ev e l op ment N=No t Applicabl e Safeguards Security U=Un i que Deai,gn D=Di ac-re p ant

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Page Last Reviewed/Updated Monday, November 06, 2017 Page 3 of 4 NRC: Byron 2 - Quarterly Performance Summary 04/18/2018 https://www.nrc.gov/reactors/operating/oversight/byro2/byro2-chart.html Initiating Events Reactor Safety Mitigating Systems Barrier Integrity Emergency Preparedness Radiation Safety Occupational Radiation Safety Public Radiation Safety Most Significant Inspection Findings Miscellaneous findings Additional Inspection & Assessment Information

+ Assessment Letters:

+ Inspection Reports 40/2017 30/2017 20/2017 10/2017

+ Security Cover Letters

+ List of Assessment Letters Clirrent data as of Febrnary 1, 201 8 Legend : R=Red W=Whi t e G'!'IG=Gr eat e r 'l'han Gr,een I = I n auffi c i ent Data t o Ca l cul a t e PI Y=Ye llow G=Gr e en

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