ML20311A638

... Barrier Integrity Emergency Preparedness 0cc upat ional Radiation Safety Public Radiation Safety Physical Protection Performance Indicators 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

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

1Q/2001 - Byron 2 Page 1 of 2 Byron 2 1Q/2001 Performance Summary Current Action Matrix Column:

Inspection Licensee Response Performance Findings Indicators y y Assessment Reports Reactor Radiation Safeguards Safety Safety

~~ T T Initiating Events ~

... Barrier Integrity Emergency Preparedness 0cc upat ional Radiation Safety Public Radiation Safety Physical Protection Performance Indicators 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

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

2Q/2001 - Byron 2 Page 1 of 2 Byron 2 2Q/2001 Performance Summary Current Action Matrix Column:

Inspection Licensee Response Performance Findings Indicators y y Assessment Reports Reactor Radiation Safeguards Safety Safety

~~ T T Initiating Events ~

... Barrier Integrity Emergency Preparedness 0cc upat ional Radiation Safety Public Radiation Safety Physical Protection Performance Indicators 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

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

3Q/2001 - Byron 2 Page 1 of 2 Byron 2 3Q/2001 Performance Summary Current Action Matrix Column:

Inspection Licensee Response Performance Findings Indicators y y Assessment Reports Reactor Radiation Safeguards Safety Safety

~~ T T Initiating Events ~

... Barrier Integrity Emergency Preparedness 0cc upat ional Radiation Safety Public Radiation Safety Physical Protection Performance Indicators 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

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

4Q/2001 - Byron 2 Page 1 of 2 Byron 2 4Q/2001 Performance Summary Current Action Matrix Column:

Inspection Licensee Response Performance Findings Indicators y y Assessment Reports Reactor Radiation Safeguards Safety Safety

~~ T T Initiating Events ~

... Barrier Integrity Emergency Preparedness 0cc upat ional Radiation Safety Public Radiation Safety Physical Protection Performance Indicators 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

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

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

Inspection Licensee Response Performance Findings Indicators y y Assessment Reports Reactor Radiation Safeguards Safety Safety T T 0cc upat ional Public Initiating Mitigating Barrier Emergency Physical Radiation Radiation Events Systems Integrity Preparedness Protection Safety Safety Performance Indicators 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

1Q/2002 - Byron 2 Page 2 of 2 Reactor Radiation Safeguards Safety Safety T T Occupational Public Initiating Mitigating Barrier Emergency Physical Radiation Radiation Events Systems Integrity Preparedness Protection Safety Safety Most Significant Inspection Findings Nofidlgs Nofidlgs No fi"ldilgs Nofidlp Nofndiras 10/2002 tNs q..ter tNs IJ8ter" this IJ8ter" tNs CJ.Brier thls~r 40/20011=.= Findings without color designation INo'ltldngs this . . . .

INo1na"Qs this IJ,Brter INofndllngs ttis..-ter 30/20011~= 1~= INo'ltldngs this IJB'ler 1No1hqs this IJ,llrter INofhdllrgs thls~r 20/2001 INo'ltldngs this . . . .

INo1n*Vs this IJ,Brter INofndllngs thls..-mr Miscellaneous findings Addition a I I nsp e cti on & Assessment Info rm ati on

+ Assessment Rep orts/1 nsp e cti on PI ans: + List of Inspection Reports 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 Action Matrix Summary l Inspection Findings Summary l PI Summary l Reactor Oversight Process

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

2Q/2002 - Byron 2 Page 2 of 4 Reactor Radiation Safeguards Safety Safety T T 0cc upat ional Public Initiating Mitigating Barrier Emergency Physical Radiation Radiation Events Systems Integrity Preparedness Protection Safety Safety Performance Indicators Last Modified: July 31, 2002 Legend: R=Red W=White T=Thresho1ds Wl.der deve1opment N=Not App1icab1e Y=Ye11ow G=Green I=Insuf ficient data to ca1cu1ate PI U=Unique Design file://C:\RROP\NRR\OVERSIGHT\ASSESS\BYRO2\byro2_chart.html 07/03/2003

2Q/2002 - Byron 2 Page 3 of 4 Reactor Radiation Safeguarc Safety Safety T T Occupational Public Initiating Mitigating Barrier Emergency Physical Radiation Radiation Events Systems Integrity Preparedness Protectio1 Safety Safety Most Significant Inspection Findings 2oi2002I=.: Findings without color designation 1=-= INo'ltldngs this..-ter INo1na"Qs this CJ,arter INofndllngs ttis..-ter 10!20021~= 1:s: INo fi"ldilgs this IJB'ter" INo1nrgs this CJ.Brier INo fildirgs thls~r 40!20011=-= Findings without color designation INo'ltldngs thls..-ter INo1na"Qs this CJ,arter INofndllngs thls..-mr 30!20011~= 1~= INo'ltldngs thlslJB'ler INo1na"Qs this IJ,llrter INofndllngs thls~r Miscellaneous findings Additional Inspection & Assessment Information

+ Assessment Rep o rts/1 nsp e cti on PI ans: + List of Inspection Reports 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 file://C:\RROP\NRR\OVERSIGHT\ASSESS\BYRO2\byro2_chart.html 07/03/2003

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

3Q/2002 - Byron 2 Page 1 of 3 Byron 2 3Q/2002 Performance Summary Current Action Matrix Co Ium n:

Inspection Licensee Response Performance Findings Indicators

¥ ¥ Assessment Reports Reactor Radiation Safeguards Safety Safety

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

3Q/2002 - Byron 2 Page 2 of 3 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 Reactor Radiation Safeguarc Safety Safety T T Occupational Public Initiating Mitigating Barrier Emergency Physical Radiation Radiation Events Systems Integrity Preparedness Protectio1 Safety Safety Most Significant Inspection Findings 30!2002 Nofidlgs this ~ r Nofh:tlgs

'lta~ster Nofidlgs 1ta1J81:er No fi"ldilgs

'ltaq..ter Nofidlgs ttaq..ter Nofndiras

'ltaq..ter Nofh:tlgs thls~ster 20!20021=*= Findings without color designation 1:m= 1No'ltldngs ttisq..ter INo1na"Qs ttisq..ter 1Nofndllngs ttisq..ter No fh:tlJas this~--

10!20021=*= 1:s= 1No'ltldngs tNsqlB'ter 1:s= l:S': No'lh:llgs thls~ster 40!20011=*= Findings without color designation 1No'ltldngs Nsq..ter 1:s= l:S': No fh:tlJas this~--

Miscellaneous findings Additional Inspection & Assessment Information

+ Assessment Rep o rts/1 nsp e cti on PI ans: + List of Inspection Reports 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

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

4Q/2002 - Byron 2 Page 1 of 3 Byron 2 4Q/2002 Performance Summary Current Action Matrix Co Ium n:

Inspection Licensee Response Performance Findings Indicators y y Assessment Reports Reactor Radiation Safeguards Safety Safety

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

4Q/2002 - Byron 2 Page 2 of 3 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 Reactor Radiation Safeguarc Safety Safety T T Occupational Public Initiating Mitigating Barrier Emergency Physical Radiation Radiation Events Systems Integrity Preparedness Protectio1 Safety Safety Most Significant Inspection Findings 40!2002 l:m= INo'ltldngs ttisq..ter INo1na"Qs ttisq..ter INofndllngs ttisq..ter No fh:tlJas lhis-..ister 30!2002 1:s= INo fi"ldilgs ttaq..ter 1:s= I:.': Nofh:tlgs lhls-..ister 2oi2002lt:.= Findings without color designation 1:m= INo'ltldngs tisq..ter 1=-= 1=-'= No fh:tlJas lhls-..ister 1oi2002lt:.= I No 'lh:tlJa*

'IN&:-..iarter 1:a= INo'ltldngs

'INsqlB'ter 1=-= 1=-'= No 'lh:tlJa*

this -..iarter Miscellaneous findings Additional Inspection & Assessment Information

+ Assessment Rep o rts/1 nsp e cti on PI ans: + List of Inspection Reports 40/2002 + List of Assessment Letters/I nsp e cti on PI ans 30/2002 20/2002 10/2002

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

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

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

1Q/2003 - Byron 2 Page 2 of 4 Reactor Radiation Safeguards Safety Safety T T 0cc upat ional Public Initiating Mitigating Barrier Emergency Physical Radiation Radiation Events Systems Integrity Preparedness Protection Safety Safety Performance Indicators Last Modified: April 22, 2003 Legend: R=Red W=White T=Thresho1ds Wl.der deve1opment N=Not App1icab1e Y=Ye11ow G=Green I=Insuf ficient data to ca1cu1ate PI U=Unique Design file://C:\RROP\NRR\OVERSIGHT\ASSESS\BYRO2\byro2_chart.html 07/22/2003

1Q/2003 - Byron 2 Page 3 of 4 Reactor Radiation Safeguarc Safety Safety T

Occupational TPublic Initiating Mitigating Barrier Emergency Physical Radiation Radiation Events Systems Integrity Preparedness Protectio1 Safety Safety Most Significant Inspection Findings 10!20031 = * =

INo'ltldngs ttisq..ter INo1na"Qs ttisq..ter Ittisq..ter Nofndllngs 40!2002 1:s= INo fi"ldilgs ttaq..ter 1:s=

1:m= I 30!2002 No'ltldngs tisq..ter 1=-= No'lh:tlgs lhlslf.lster 2oi2002 l t : . =

Findings without color designation 1:a= INo'ltldngs tNsqlB'ter 1=-=

Miscellaneous findings Additional Inspection & Assessment Information

+ Assessment Rep o rts/1 nsp e cti on PI ans: + List of Inspection Reports 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 file://C:\RROP\NRR\OVERSIGHT\ASSESS\BYRO2\byro2_chart.html 07/22/2003

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

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

2Q/2003 - Byron 2 Page 2 of 4 Reactor Radiation Safeguards Safety Safety T T 0cc upat ional Public Initiating Mitigating Barrier Emergency Physical Radiation Radiation Events Systems Integrity Preparedness Protection Safety Safety Performance Indicators Last Modified: July 22, 2003 Legend: R=Red W=White T=Thresho1ds Wl.der deve1opment N=Not App1icab1e Y=Ye11ow G=Green I=Insuf ficient data to ca1cu1ate PI U=Unique Design file://C:\RROP\NRR\OVERSIGHT\ASSESS\BYRO2\byro2_chart.html 10/08/2003

2Q/2003 - Byron 2 Page 3 of 4 Reactor Radiation Safeguarc Safety Safety T T 0cc upat ional Public Initiating Mitigating Barrier Emergency Physical Radiation Radiation Events Systems Integrity Preparedness Protectio1 Safety Safety Most Significant Inspection Findings 20!2003 1 = * =

Ittisq..ter No'ltldngs Ittisq..ter No1na"Qs Ittisq..ter Nofndllngs No'lh:tlgs lhis-..ister Ittaq..ter No fi"ldilgs 1:s= I:.': No1h:tlgs lhls-..ister 40!2002 1=-= INo'ltldngs tisq..ter 1=-= 1=-'= No'lh:tlgs lhls-..ister 30!2002 1:a= INo'ltldngs tNsqlB'ter 1=-= 1=-'= No'lh:tlgs this -..iarter Miscellaneous findings Additional Inspection & Assessment Information

+ Assessment Rep o rts/1 nsp e cti on PI ans: + List of Inspection Reports 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 file://C:\RROP\NRR\OVERSIGHT\ASSESS\BYRO2\byro2_chart.html 10/08/2003

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

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

3Q/2003 - Byron 2 Page 2 of 4 Reactor Radiation Safeguards Safety Safety T T 0cc upat ional Public Initiating Mitigating Barrier Emergency Physical Radiation Radiation Events Systems Integrity Preparedness Protection Safety Safety Performance Indicators Last Modified: October 22, 2003 Legend: R=Red W=White T=Thresho1ds Wl.der deve1opment N=Not App1icab1e Y=Ye11ow G=Green I=Insuf ficient data to ca1cu1ate PI U=Unique Design file://C:\RROP\NRR\OVERSIGHT\ASSESS\BYRO2\byro2_chart.html 01/12/2004

3Q/2003 - Byron 2 Page 3 of 4 Reactor Radiation Safeguarc Safety Safety T T Occupational Public Initiating Mitigating Barrier Emergency Physical Radiation Radiation Events Systems Integrity Preparedness Protectio1 Safety Safety Most Significant Inspection Findings 30!20031=*= 1=-= Ittisq..ter No'ltldngs Ittisq..ter Nofndllngs No'lh:tlgs lhis-..ister 20!20031=*= Ittaq..ter No fi"ldilgs 1:s= I:.': No1h:tlgs lhls-..ister 10!20031=*= INo'ltldngs tisq..ter 1=-= 1=-'= No'lh:tlgs lhls-..ister 40!2002 1:a= INo'ltldngs tNsqlB'ter 1=-= 1=-'= No'lh:tlgs this -..iarter Miscellaneous findings Additional Inspection & Assessment Information

+ Assessment Rep o rts/1 nsp e cti on PI ans: + List of Inspection Reports 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 file://C:\RROP\NRR\OVERSIGHT\ASSESS\BYRO2\byro2_chart.html 01/12/2004

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

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

4Q/2003 - Byron 2 Page 2 of 4 Reactor Radiation Safeguards Safety Safety T T 0cc upat ional Public Initiating Mitigating Barrier Emergency Physical Radiation Radiation Events Systems Integrity Preparedness Protection Safety Safety Performance Indicators Last Modified: Jam.1a,y 23, 2004 Legend: R=Red W=White T=Thresho1ds Wl.der deve1opment N=Not App1icab1e Y=Ye11ow G=Green I=Insuf ficient data to ca1cu1ate PI U=Unique Design file://C:\RROP\NRR\OVERSIGHT\ASSESS\BYRO2\byro2_chart.html 04/22/2004

4Q/2003 - Byron 2 Page 3 of 4 Reactor Radiation Safeguarc Safety Safety T

Occupational TPublic Initiating Mitigating Barrier Emergency Physical Radiation Radiation Events Systems Integrity Preparedness Protectio1 Safety Safety Most Significant Inspection Findings 40!20031=*= INo'ltldngs ttisq..ter INo1na"Qs ttisq..ter 1 Nofndllngs ttisq..ter No'lh:tlgs lhis-..ister 30!20031=*= 1:.= 1No fi"ldilgs ttaq..ter l:S': No1h:tlgs lhls-..ister 20!20031=*= 1No'ltldngs tisq..ter 1=-= 1=-'= No'lh:tlgs lhls-..ister 10!20031=*= 1No'ltldngs tNsqlB'ter 1:.= 1=-'= No'lh:tlgs this -..iarter Miscellaneous findings Additional Inspection & Assessment Information

+ Assessment Rep o rts/1 nsp e cti on PI ans: + List of Inspection Reports 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 file://C:\RROP\NRR\OVERSIGHT\ASSESS\BYRO2\byro2_chart.html 04/22/2004

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

1Q/2004 - Byron 2 Page 1 of 2 Byron 2 1Q/2004 Performance Summary Current Action Matrix Column:

Inspection Licensee Response Performance Findings Indicators y y Assessment Reports Reactor Radiation Safeguards Safety Safety

... Mitigating Systems ~

Barrier Integrity Emergency Preparedness 0cc upat ional Radiation Safety Public Radiation Safety Physical Protection Performance Indicators Last Modified: April 22, 2004 07/14/2004

1Q/2004 - Byron 2 Page 2 of 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 Reactor Radiation Safeguarc Safety Safety Occupational Public Initiating Mitigating Barrier Emergency Physical Radiation Radiation Events Systems Integrity Preparedness Protectio1 Safety Safety Most Significant Inspection Findings 10!20041 :S': INofndllngs ttis..-ter 1:.= 1:a= No'ltldngs ttisq..ter 40!20031 No film-gs 111s IJJSl:er I:.': lt:m= 1:s= No fi"ldilgs 111s q..ter 30!20031 No fh*igs tHs..-ter 1=-= 1=-'= 1:m= No'ltldngs tlisq..ter 20!20031 No fh*Gs 1111 IJBl:er 1=-'= 1:.= 1:a= No'ltldngs tNsqlB'ter Miscellaneous findings Additional Inspection & Assessment Information

+ Assessment Reports/Inspection Plans: + List of Inspection Reports 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 Action Matrix Summary l Inspection Findings Summary l PI Summary l Reactor Oversight Process 07/14/2004

2Q/2004 Performance Summary - Byron 2 Page 1 of 2 Byron 2 2Q/2004 Performance Summary Current Action Matrix Column:

Inspection Licensee Response Performance Findings Indicators y y Assessment Reports Reactor Radiation Safeguards Safety Safety

~~ T T Initiating Events ~

.... Barrier Integrity Emergency Preparedness 0cc upat ional Radiation Safety Public Radiation Safety Physical Protection (NOT PUBLIC)

Performance Indicators 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

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

3Q/2004 Performance Summary - Byron 2 Page 1 of 2 Byron 2 3Q/2004 Performance Summary Current Action Matrix Column:

Inspection Licensee Response Performance Findings Indicators

¥ ¥ Assessment Reports Reactor Radiation Safeguards Safety Safety

Barrier Integrity Emergency Preparedness Occupational Radiation Safety Public Radiation Safety Physical Protection (NOT PUBLIC)

Performance Indicators 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

3Q/2004 Performance Summary - Byron 2 Page 2 of 2 Reactor Radiation Safeguarc Safety Safety Occupational Public Physical Initiating Mitigating Barrier Emergency Radiation Radiation Protectio1 Events Systems Integrity Preparedness Safety Safety (NOT PUBL Most Significant Inspection Findings 3Qf2004 I::: INo1na"Qs ttis CJ,arter INofndllngs ttis..-ter 1=-= 1=-=

I 2Qf2004 No film-gs this IJ8ter" I'*

Nomcrgs IJ,llrter INo fildirgs thlsipner 1~= 1:s:

I 1Qf2004 No fh*igs thls..-ter INofndllngs thls..-mr 1=-= 1=-=

I 4Qf2003 No fh*Gs this CJBter INofndllngs thls~r 1~= 1=-=

Miscellaneous findings Additional Inspection & Assessment Information

+ Assessment Reports/Inspection Plans: + List of Inspection Reports 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 Action Matrix Summary l Inspection Findings Summary l PI Summary l Reactor Oversight Process

4Q/2004 Performance Summary - Byron 2 Page 1 of 2 Byron 2 4Q/2004 Performance Summary Current Action Matrix Column:

Inspection Licensee Response Performance Findings Indicators

¥ ¥ Assessment Reports Reactor Radiation Safeguards Safety Safety

... Mitigating Systems ~

Barrier Integrity Emergency Preparedness Occupational Radiation Safety Public Radiation Safety Physical Protection (NOT PUBLIC)

Performance Indicators 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

4Q/2004 Performance Summary - Byron 2 Page 2 of 2 Reactor Radiation Safeguarc Safety Safety Occupational Public Physical Initiating Mitigating Barrier Emergency Radiation Radiation Protectio1 Events Systems Integrity Preparedness Safety Safety (NOT PUBL Most Significant Inspection Findings 4Qf2004 I::: Ithis..-ter No'ltldngs INofndllngs ttis..-ter 1=-= 1=-=

I 3Qf2004 No film-gs this~

I'*

Nomcrgs CJ.Brier INo fildirgs thls~r 1~= 1:s:

I 2Qf2004 No fhdllngs thls..-ter INo1na"Qs tis IJ,larblr INofndllngs thls..-mr 1=-= 1=-=

I 1Qf2004 No fh*Gs this~

INofndllngs thls~r 1~= 1=-=

Miscellaneous findings Additional Inspection & Assessment Information

+ Assessment Reports/Inspection Plans: + List of Inspection Reports 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 Action Matrix Summary l Inspection Findings Summary l PI Summary l Reactor Oversight Process

1Q/2005 Performance Summary - Byron 2 Page 1 of 2 Byron 2 1Q/2005 Performance Summary Current Action Matrix Column:

Inspection Licensee Response Performance Findings Indicators

¥ ¥ Assessment Reports Reactor Radiation Safeguards Safety Safety

... Mitigating Systems ~

Barrier Integrity Emergency Preparedness Occupational Radiation Safety Public Radiation Safety Physical Protection (NOT PUBLIC)

Performance Indicators 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

1Q/2005 Performance Summary - Byron 2 Page 2 of 2 Reactor Radiation Safeguarc Safety Safety Occupational Public Physical Initiating Mitigating Barrier Emergency Radiation Radiation Protectio1 Events Systems Integrity Preparedness Safety Safety (NOT PUBL Most Significant Inspection Findings 1Qf2005 I::: INofndllngs ttis..-ter I

4Qf2004 No film-gs this IJ8ter" I No fi"ldilgs this IJ8ter" INo fildirgs thls~r 1~=

INofndllngs I

3Qf2004 No fhdllngs thls..-ter INo1na"Qs tis IJ,larblr thls..-mr 1=-=

I 2Qf2004 No fh*Gs this cplrter I'*

No1na"Qs IJ,llrter INofndllngs this cplrter 1~=

Miscellaneous findings Additional Inspection & Assessment Information

+ Assessment Reports/Inspection Plans: + List of Inspection Reports 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 Action Matrix Summary l Inspection Findings Summary l PI Summary l Reactor Oversight Process

2Q/2005 Performance Summary - Byron 2 Page 1 of 2 Byron 2 2Q/2005 Performance Summary Current Action Matrix Column:

Inspection Licensee Response Performance Findings Indicators

¥ ¥ Assessment Reports Reactor Radiation Safeguards Safety Safety

Barrier Integrity Emergency Preparedness Occupational Radiation Safety Public Radiation Safety Physical Protection (NOT PUBLIC)

Performance Indicators 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

2Q/2005 Performance Summary - Byron 2 Page 2 of 2 Reactor Radiation Safeguarc.

Safety Safety Occupational Public Physical Initiating Mitigating Barrier Emergency Radiation Radiation Protectio1 Events Systems Integrity Preparedness Safety Safety (NOT PUBL Most Significant Inspection Findings 2012005 Ittis No'ltldhgs q..ter Ittisq..ter Nofld'Vs Ittisq..ter Nofhdllrvs 1:.= l:m=

10120051 No film,gs 111s IJJSl:er l:S'= 1:s=

4012004 I No ,niavs 111s ..-t* 1 No'ltldhgs tis q..ter 1=-'= 1:.= 1:m=

30120041 No fhdllngs 1111 IJBl:er 1=-= 1=-'= 1:.= 1:a=

Miscellaneous findings Additional Inspection & Assessment Information

+ Assessment Reports/Inspection Plans: + List of Inspection Reports 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 Action Matrix Summary l Inspection Findings Summary l PI Summary l Reactor Oversight Process

3Q/2005 Performance Summary - Byron 2 Page 1 of 2 Byron 2 3Q/2005 Performance Summary Current Action Matrix Column:

Inspection Licensee Response Performance Findings Indicators

¥ ¥ Assessment Reports Reactor Radiation Safeguards Safety Safety

Barrier Integrity Emergency Preparedness Occupational Radiation Safety Public Radiation Safety Physical Protection (NOT PUBLIC)

Performance Indicators 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

3Q/2005 Performance Summary - Byron 2 Page 2 of 2 Reactor Radiation Safeguarc.

Safety Safety Occupational Public Physical Initiating Mitigating Barrier Emergency Radiation Radiation Protectio1 Events Systems Integrity Preparedness Safety Safety (NOT PUBL Most Significant Inspection Findings 30!20051 :S': INofhdllrvs ttis..-ter 1:.= 1:a=

20!2005 I Nomdilgs ttaq..ter 1:s= I:.': lt:m= 1:s=

1or2005 I ,niavs No tHs..-ter 1=-'= 1:m=

40!20041 No fhdllngs 1111 IJBl:er I No 'ltldhgs tNsqlB'ter 1=-'= 1:.= 1:a=

Miscellaneous findings Additional Inspection & Assessment Information

+ Assessment Reports/Inspection Plans: + List of Inspection Reports 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 Action Matrix Summary l Inspection Findings Summary l PI Summary l Reactor Oversight Process

4Q/2005 Performance Summary - Byron 2 Page 1 of 2 Byron 2 4Q/2005 Performance Summary Current Action Matrix Column:

Inspection Licensee Response Performance Findings Indicators

¥ ¥ Assessment Reports Reactor Radiation Safeguards Safety Safety

Barrier Integrity Emergency Preparedness Occupational Radiation Safety Public Radiation Safety Physical Protection (NOT PUBLIC)

Performance Indicators 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

4Q/2005 Performance Summary - Byron 2 Page 2 of 2 Reactor Radiation Safeguarc.

Safety Safety Occupational Public Physical Initiating Mitigating Barrier Emergency Radiation Radiation Protectio1 Events Systems Integrity Preparedness Safety Safety (NOT PUBL Most Significant Inspection Findings 4012005 ItNofld'Vs tis~

ItNofhdllrvs tis~ 1:.= l:m=

30120051 No film,gs 111s IJJSl:er l:S'= 1:.= 1:s=

2012005 1No 'ltldhgs tis q..ter 1=-= 1=-'= 1:.= 1:m=

10120051 No fhdllngs 1111 IJBl:er 1=-'= 1:a=

Miscellaneous findings Additional Inspection & Assessment Information

+ Assessment Reports/Inspection Plans: + List of Inspection Reports 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 Action Matrix Summary l Inspection Findings Summary l PI Summary l Reactor Oversight Process

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

Inspection Licensee Response Performance Findings Indicators

¥ ¥ Assessment Reports Reactor Radiation Safeguards Safety Safety

Barrier Integrity Emergency Preparedness Occupational Radiation Safety Public Radiation Safety Physical Protection (NOT PUBLIC)

Performance Indicators 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

1Q/2006 Performance Summary - Byron 2 Page 2 of 2 Reactor Radiation Safeguarc.

Safety Safety Occupational Public Physical Initiating Mitigating Barrier Emergency Radiation Radiation Protectio1 Events Systems Integrity Preparedness Safety Safety (NOT PUBL Most Significant Inspection Findings 10!20061 :S': INofhdllrvs ttis..-ter 1:.= 1:a=

40!2005 1:s= I:.': 1:.= 1:s=

30f2005 I ,niavs No tHs..-ter 1=-'= 1:.= 1:m=

20!2005 I No 'ltldhgs tNs qlB'ter 1=-= 1=-'= 1:.= 1:a=

Miscellaneous findings Additional Inspection & Assessment Information

+ Assessment Reports/Inspection Plans: + List of Inspection Reports 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 Inspection & Assessment Information l Action Matrix Summary l Inspection Findings Summary l PI Summary l Reactor Oversight Process

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

Inspection Regulatory Response Performance Findings Indicators

¥ ¥ Assessment Reports Reactor Radiation Safeguards Safety Safety

~~ T T 0cc upat ional Public Physical Initiating Mitigating Barrier Emergency

~ ~ Radiation Radiation Protection Events Systems Integrity Preparedness Safety Safety (NOT PUBLIC)

Performance Indicators Heat Removal System (lJlJ)

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

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

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

Inspection Regulatory Response Performance Findings Indicators y y Assessment Reports Reactor Radiation Safeguards Safety Safety T

0cc upat ional TPublic Physical Initiating Mitigating Barrier Emergency Radiation Radiation Protection Events Systems Integrity Preparedness Safety Safety (NOT PUBLIC)

Performance Indicators Heat Removal System (lW)

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

3Q/2006 Performance Summary - Byron 2 Page 2 of 2 Reactor Radiation Safeguards Safety Safety T T 0cc upat ional Public Physical Initiating Mitigating Barrier Emergency Radiation Radiation Protection Events Systems Integrity Preparedness Safety Safety (NOT PUBLIC)

=

Most Significant Inspection Findings Ittis-..ister 30120061 : .

1=*= Noih:t"G*

I'* CJ.Brier Nofirdlgs 1:.: Itta-..ister Nom:tlg*

1:s: 1:.:

10120061 : .= Ittis-..ister No1h:h;as 1:a: 1:.:

4012005 1:.: I'IN&:-..iarter Noih:t"G*

1:a: 1:.:

Miscellaneous findings Additional Inspection & Assessment Information

+ Assessment Reports/Inspection Plans: + List of Inspection Reports 30/2006 + List of Assessment Letters/I nsp e cti on PI ans

+ Baseline Inspection Completion Information 20/2006 10/2006 40/2005

+ Cross Reference Of Assessment Reports Last Modified: December 13, 2006 Action Matrix Summary l Inspection Findings Summary l PI Summary l Reactor Oversight Process

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

Inspection Regulatory Response Performance Findings Indicators y y Assessment Reports Reactor Radiation Safeguards Safety Safety T

0cc upat ional TPublic Physical Initiating Mitigating Barrier Emergency Radiation Radiation Protection Events Systems Integrity Preparedness Safety Safety (NOT PUBLIC)

Performance Indicators Heat Removal System (lW)

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

4Q/2006 Performance Summary - Byron 2 Page 2 of 2 Reactor Radiation Safeguards Safety Safety T T 0cc upat ional Public Physical Initiating Mitigating Barrier Emergency Radiation Radiation Protection Events Systems Integrity Preparedness Safety Safety (NOT PUBLIC)

Most Significant Inspection Findings 40120061 :.= 1=*= I No1h:h;a*

ttis-..ister l:m= 1:.:

30120061 :1s= 1:.: I Nom:tlg*

tta-..ister 20120061 :.= Ittisflrdlgs No IJ,larblr 1:.: Ittws-..ister No1h:h;as 1:a: 1:.:

10120061 :1s= I'IN&:-..iarter No1h:h;a*

1:a: 1:1s:

Miscellaneous findings Additional Inspection & Assessment Information

+ Assessment Reports/Inspection Plans: + List of Inspection Reports 40/2006 + List of Assessment Letters/I nsp e cti on PI ans

+ Baseline Inspection Completion Information 30/2006 20/2006 10/2006

+ Cross Reference Of Assessment Reports Last Modified: March 1, 2007 Action Matrix Summary l Inspection Findings Summary l PI Summary l Reactor Oversight Process

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

Inspection Regulatory Response Performance Findings Indicators

¥ ¥ Assessment Reports Reactor Radiation Safeguards Safety Safety i

Occupational i Public Physical Initiating Mitigating Barrier Emergency Radiation Radiation Protection Events Sy.stems Integrity P reparedne.s.s Safety Safety (NOT PUBLIC)

Performance Indicators Heat Removal System (lflf)

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 Current Action Matrix Column:

Inspection Regulatory Response Performance Findings Indicators

¥ ¥ Assessment Reports Reactor Radiation Safeguards Safety Safety i

Occupational i Public Physical Initiating Mitigating Barrier Emergency Radiation Radiation Protect ion!

Events Sy.stems Integrity P reparedne.s.s Safety Safety Security Performance Indicators Heat Removal System (lflf)

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

Reactor Radiation Safeguards Safety Safety T T 0cc upat ional Public Physical Initiating Mitigating Barrier Emergency Radiation Radiation Protectiorl Events Systems Integrity Preparedness Safety Safety Security Most Significant Inspection Findings 20!2007 1=*= INoitdlg*

tta:~ster 1:s= 1:.=

I:.= 1=*= INo1nh;as 1:s= 1:.=

=

1012001 ttis~ster 40!20061 : .

1=*= INo1nh;a*

ttis~ster l:m= 1:.=

I 1=*= Nom:tlg*

'lta~ster Miscellaneous findings Additional Inspection & Assessment Information

+ Assessment Reports/Inspection Plans: + List of Inspection Reports (IR) 20/2007 + List of Security IR Cover Letters

+ List of Assessment Letters/I nsp e cti on PI ans 10/2007

+ Baseline Inspection Completion Information 40/2006 30/2006

+ Cross Reference Of Assessment Reports Last Modified: August 24, 2007 Action Matrix Summary l Inspection Findings Summary l PI Summary l Reactor Oversight Process

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

Inspection Regulatory Response Performance Findings Indicators

¥ ¥ Assessment Reports Reactor Radiation Safeguards Safety Safety i

Occupational i Public Physical Initiating Mitigating Barrier Emergency Radiation Radiation Protect ion!

Events Sy.stems Integrity P reparedne.s.s Safety Safety Security Performance Indicators Heat Removal System (lflf)

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

Reactor Radiation Safeguards Safety Safety T T 0cc upat ional Public Physical Initiating Mitigating Barrier Emergency Radiation Radiation Protectiorl Events Systems Integrity Preparedness Safety Safety Security 30!20071 :1s=

Most Significant Inspection Findings 1:.: 1Noitdlg*

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

20!2007 1:.: 1No1nh;as 1:s: 1:.:

10!20071 :.=

ttis~ster 1:.: 1No1nh;a*

1:a: 1:.:

40!20061 :1s=

ttis~ster 1:.: 1Nom:tlg*

'lta~ster 1:s: 1:1s:

Miscellaneous findings Additional Inspection & Assessment Information

+ Assessment Reports/Inspection Plans: + List of Inspection Reports (IR) 30/2007 + List of Security IR Cover Letters

+ List of Assessment Letters/I nsp e cti on PI ans 20/2007

+ Baseline Inspection Completion Information 10/2007 40/2006

+ Cross Reference Of Assessment Reports Last Modified: December 7, 2007 Action Matrix Summary l Inspection Findings Summary l PI Summary l Reactor Oversight Process

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

Inspection Regulatory Response Performance Findings Indicators

¥ ¥ Assessment Reports Reactor Radiation Safeguards Safety Safety i

Occupational i Public Physical Initiating Mitigating Barrier Emergency Radiation Radiation Protect ion!

Events Sy.stems Integrity P reparedne.s.s Safety Safety Security Performance Indicators Heat Removal System (lflf)

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

Reactor Radiation Safeguards Safety Safety T T 0cc upat ional Public Physical Initiating Mitigating Barrier Emergency Radiation Radiation Protectiorl Events Systems Integrity Preparedness Safety Safety Security

=

Most Significant Inspection Findings 1'*

Noflrdlgs 1:.= 1 Noitdlg*

1:s= 1:.=

=

40!20071 : . IJ,llrter tta~ster 30!20071 : . 1:.= 1 No1nh;as ttis~ster 1:s= 1:.=

20!2007 1=*= I No1nh;a*

ttis~ster 1:m= 1:.=

1:.= 1 Nom:tlg*

'lta~ster 1:s= lt:m=

Miscellaneous findings Additional Inspection & Assessment Information

+ Assessment Reports/Inspection Plans: + List of Inspection Reports (IR) 40/2007 + List of Security IR Cover Letters

+ List of Assessment Letters/I nsp e cti on PI ans 30/2007

+ Baseline Inspection Completion Information 20/2007 10/2007

+ Cross Reference Of Assessment Reports Last Modified: February 4, 2008 Action Matrix Summary l Inspection Findings Summary l PI Summary l Reactor Oversight Process

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

Inspection Regulatory Response Performance Findings Indicators

¥ ¥ Assessment Reports Reactor Radiation Safeguards Safety Safety 0cc upat ional Public Physical Initiating Mitigating Barrier Emergency Radiation Radiation Protectiorl Events Systems Integrity Preparedness Safety Safety Security Performance Indicators 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 Current Action Matrix Column:

Inspection Regulatory Response Performance Findings Indicators

¥ ¥ Assessment Reports Reactor Radiation Safeguards Safety Safety 0cc upat ional Public Physical Initiating Mitigating Barrier Emergency Radiation Radiation Protectiorl Events Systems Integrity Preparedness Safety Safety Security Performance Indicators 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 Current Action Matrix Column:

Inspection Regulatory Response Performance Findings Indicators y y Assessment Reports Reactor Radiation Safeguards Safety Safety T T 0cc upat ional Public Initiating Mitigating Barrier Emergency Radiation Radiation Security Events Systems Integrity Preparedness Safety Safety Performance Indicators 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

Reactor Radiation Safeguards Safety Safety

~~ T T Initiating Events ~

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

20!2008 I Noftldngs this quster 1:s= 1Noftldngs tis quster 1:s= 1:.=

10!20081 W (1) INoftldngs tis quster 1=*=

40!2007 INomf this qU::.

1:s= 1No fi"ldilgs ttaqiater 1:s= lt:s=

Miscellaneous findings Additional Inspection & Assessment Information

+ Assessment Reports/Inspection Plans: + List of Inspection Reports (IR) 30/2008 + List of Security IR Cover Letters

+ List of Assessment Letters/I nsp e cti on PI ans 20/2008

+ Baseline Inspection Completion Information 10/2008 40/2007

+ Cross Reference Of Assessment Reports Last Modified: November 26, 2008 Action Matrix Summary l Inspection Findings Summary l PI Summary l Reactor Oversight Process

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

Inspection Regulatory Response Performance Findings Indicators y y Assessment Reports Reactor Radiation Safeguards Safety Safety T T 0cc upat ional Public Initiating Mitigating Barrier Emergency Radiation Radiation Security Events Systems Integrity Preparedness Safety Safety Performance Indicators Last Modified: Febrnary 4, 2009

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 Radiation Safeguards Safety Safety

~~ T T Initiating Events f-) Mitigating Systems

_., Barrier Integrity Emergency Preparedness 0cc upat ional Radiation Public Radiation Security Safety Safety Most Significant Inspection Findings INoftld~

40!2008 ttis quster Noftldngs 1tis quster 30!2008 1:s= 1 No fi"ldilgs ttaq..ter 1:s=

I Noftldngs 20!2008 this quster 1:m= 1 Noftldngs tisquster 1=-=

1oi2000 l.__w_(1_)_ _. 1 Noftldngs tNsqlB'ter Miscellaneous findings Additional Inspection & Assessment Information

+ Assessment Reports/Inspection Plans: + List of Inspection Reports (IR) 40/2008 + List of Security IR Cover Letters 30/2008

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

+ Baseline Inspection Completion Information 20/2008 10/2008

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

Action Matrix Summary l Inspection Findings Summary l PI Summary l Reactor Oversight Process Byron 2 1Q/2009 Performance Summary Current Action Matrix Column:

Inspection Regulatory Response Performance Findings Indicators y y Assessment Reports Reactor Radiation Safeguards Safety Safety T T 0cc upat ional Public Initiating Mitigating Barrier Emergency Radiation Radiation Security Events Systems Integrity Preparedness Safety Safety Performance Indicators Last Modified: May 1, 2009

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 Radiation Safeguards Safety Safety

~~ T T Initiating Events f-) Mitigating Systems

_., Barrier Integrity Emergency Preparedness 0cc upat ional Radiation Public Radiation Security Safety Safety Most Significant Inspection Findings 10!2009 INoftld~

ttis quster 1:m= 1 Noftldngs ttis quster INo~

ttisquster 1:.=

40!2008 I No fi"ld" this qU::. 1 No fi"ldilgs ttaq..ter 1:.=

30!2008 1:m= 1 Noftldngs tisquster 1=-= 1:.=

20!20081 W (1) 1:a= 1 Noftldngs tNsqlB'ter 1=-= 1:.=

Miscellaneous findings Additional Inspection & Assessment Information

+ Assessment Reports/Inspection Plans: + List of Inspection Reports (IR) 10/2009 + List of Security IR Cover Letters 40/2008

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

+ Baseline Inspection Completion Information 30/2008 20/2008

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

Action Matrix Summary l Inspection Findings Summary l PI Summary l Reactor Oversight Process Byron 2 2Q/2009 Performance Summary Current Action Matrix Column:

Inspection Regulatory Response Performance Findings Indicators y y Assessment Reports Reactor Radiation Safeguards Safety Safety T T 0cc upat ional Public Initiating Mitigating Barrier Emergency Radiation Radiation Security Events Systems Integrity Preparedness Safety Safety Performance Indicators Last Modified: August 25, 2009

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 Radiation Safeguards Safety Safety

~~ T T Initiating Events f-) Mitigating Systems

_., Barrier Integrity Emergency Preparedness 0cc upat ional Radiation Public Radiation Security Safety Safety Most Significant Inspection Findings INoftld~

20!2009 ttis quster l:m= INoftldngs ttis quster INo~

ttisquster 1=*=

I No fi"ld" 10!2009 this qU::.

1:s= INo fi"ldilgs ttaq..ter 1:s= 1=*=

I I Noftldngs 40!2008 this quster Noftldngs tisquster 1=*=

1:a= I 30!2008 Noftldngs tNsqlB'ter 1=-= 1=*=

Miscellaneous findings Additional Inspection & Assessment Information

+ Assessment Reports/Inspection Plans: + List of Inspection Reports (IR) 20/2009 + List of Security IR Cover Letters 10/2009

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

+ Baseline Inspection Completion Information 40/2008 30/2008

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

Action Matrix Summary l Inspection Findings Summary l PI Summary l Reactor Oversight Process Byron 2 3Q/2009 Performance Summary Action Matrix Column:

Inspection Licensee Response Performance Findings Indicators

¥ ¥ Assessment Reports Reactor Radiation Safeguards Safety Safety T T Occupational Public Initiating Mitigating Barrier Emergency Radiation Radiation Security Events Systems Integrity Preparedness Safety Safety Performance Indicators 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

Reactor Radiation Safeguarc.

Safety Safety Occupational Public Initiating Mitigating Barrier Emergency Radiation Radiation Security Events Systems Integrity Preparedness Safety Safety Most Significant Inspection Findings 3012009 ItNo1na"Qs tis~

ItNofndllngs tis~ 1:.= l:m=

20120091 No fildirgs 111s IJJSl:er 1No fi"ldilgs 111s q..ter 1:s= l:S': 1:.= 1:s=

1012009 I No fndlln;s 111s ..-t*

1=-= 1=-'= 1:.= 1:m=

4012000 I No fndlln;s 1111 IJBl:er 1=-'= 1:a=

Miscellaneous findings Additional Inspection & Assessment Information

+ Assessment Reports/Inspection Plans: + List of Inspection Reports (IR) 30/2009 + List of Security IR Cover Letters 20/2009

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

+ Baseline Inspection Completion Information 10/2009 40/2008

+ Cross Reference Of Assessment Reports Last Modified: December 10, 2009 Action Matrix Summary l Inspection Findings Summary l PI Summary l Reactor Oversight Process

Byron 2 4Q/2009 Performance Summary Action Matrix Column:

Inspection Licensee Response Performance Findings Indicators

¥ ¥ Assessment Reports Reactor Radiation Safeguards Safety Safety

~~ T T Initiating Events ~

_. Barrier Integrity Emergency Preparedness 0cc upat ional Radiation Public Radiation Security Safety Safety Performance Indicators 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 Action Matrix Column:

Inspection Licensee Response Performance Findings Indicators

¥ ¥ Assessment Reports Reactor Radiation Safeguards Safety Safety

~~ T T Initiating Events ~

_. Barrier Integrity Emergency Preparedness 0cc upat ional Radiation Public Radiation Security Safety Safety Performance Indicators 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 Action Matrix Column:

Inspection Licensee Response Performance Findings Indicators

¥ ¥ Assessment Reports Reactor Radiation Safeguards Safety Safety

~~ T T Initiating Events ~

_. Barrier Integrity Emergency Preparedness 0cc upat ional Radiation Public Radiation Security Safety Safety Performance Indicators 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 Action Matrix Column:

Inspection Licensee Response Performance Findings Indicators

¥ ¥ Assessment Reports Reactor Radiation Safeguards Safety Safety

~~ T T Initiating Events ~

_. Barrier Integrity Emergency Preparedness 0cc upat ional Radiation Public Radiation Security Safety Safety Performance Indicators 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 Action Matrix Column:

Inspection Licensee Response Performance Findings Indicators

¥ ¥ Assessment Reports Reactor Radiation Safeguards Safety Safety

~~ T T Initiating Events ~

_. Barrier Integrity Emergency Preparedness 0cc upat ional Radiation Public Radiation Security Safety Safety Performance Indicators 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 Action Matrix Column:

Inspection Regulatory Response Performance Findings Indicators

¥ ¥ Assessment Reports Reactor Radiation Safeguards Safety Safety

~~ T T Initiating Events ~

_. Barrier Integrity Emergency Preparedness 0cc upat ional Radiation Public Radiation Security Safety Safety Performance Indicators 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 Action Matrix Column:

Inspection Regulatory Response Performance Findings Indicators

¥ ¥ Assessment Reports Reactor Radiation Safeguards Safety Safety

~~ T T Initiating Events ~

_. Barrier Integrity Emergency Preparedness 0cc upat ional Radiation Public Radiation Security Safety Safety Performance Indicators 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 Action Matrix Column:

Inspection Regulatory Response Performance Findings Indicators

¥ ¥ Assessment Reports Reactor Radiation Safeguards Safety Safety

~~ T T Initiating Events ~

_. Barrier Integrity Emergency Preparedness 0cc upat ional Radiation Public Radiation Security Safety Safety Performance Indicators 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 Action Matrix Column:

Inspection Licensee Response Performance Findings Indicators

¥ ¥ Assessment Reports Reactor Radiation Safeguards Safety Safety

~~ T T Initiating Events ~

_. Barrier Integrity Emergency Preparedness 0cc upat ional Radiation Public Radiation Security Safety Safety Performance Indicators 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 Action Matrix Column:

Inspection Licensee Response Performance Findings Indicators

¥ ¥ Assessment Reports Reactor Radiation Safeguards Safety Safety

~~ T T Initiating Events ~

_. Barrier Integrity Emergency Preparedness 0cc upat ional Radiation Public Radiation Security Safety Safety Performance Indicators 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 Action Matrix Column:

Inspection Licensee Response Performance Findings Indicators y y Assessment Reports Reactor Radiation Safeguards Safety Safety T T 0cc upat ional Public Initiating Mitigating Barrier Emergency Radiation Radiation Security Events Systems Integrity Preparedness Safety Safety Performance Indicators Last Modified: Al..!gust 2, 2012 l=ll'lauffieient .D ata 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 3Q/2012 Performance Summary - Byron 2 Byron 2 3Q/2012 Performance Summary Page 1 of 3

3Q/2012 Performance Summary - Byron 2 Legend : R=Red W==Whi t e G'l"G=Gr ,e at e r 'l'han Gr,e en I = I n au ff i c i ent Data t o Ca l cul a t e PI U=Un i q ue Dea i ,g n Y=Ye ll ow G=Gr een T'='l'hreah o l d a unde r d e v e l opment N=Not Appli cabl e D=Di a cre p ant Reactor Radiation Safeguards Safety Safety

_. Barrier Integrity Emergency Preparedness 0cc upat ional Radiation Public Radiation Security Safety Safety Most Significant Inspection Findings 3012012 No findings this quarter Ithls..-ter No ft'dlp Noft'ldlnp tHs quarter 1=-= 1=-= 1:.1= 1=-=

2012012 No findings this quarter 1=-= 1=-= 1:.1= 1=-=

10!2012 Noft'ldlnp tHs quarter 1=-= 1=-= 1:.1= 1=-=

No findings 40!2011 this quarter Noft'ldlnp tHs quarter 1=-= 1=-= 1:.1= 1=-=

Miscellaneous findings Additional Inspection & Assessment Information

+ Assessment Reports/Inspection Plans: + List of Inspection Reports (IR) 30/2012 + List of Security IR Cover Letters

+ List of Assessment Letters/I nsp e cti on PI ans 20/2012

+ Baseline Inspection Completion Information 10/2012 40/2011

+ Cross Reference Of Assessment Reports Last Modified: November 30, 2012 Page 2 of 3

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

4Q/2012 Performance Summary - Byron 2 Byron 2 4Q/2012 Performance Summary Action Matrix Column:

Inspection Licensee Response Performance Findings Indicators

¥ ¥ Assessment Reports Reactor Radiation Safeguards Safety Safety

~~ T T Initiating Events ~

_. Barrier Integrity Emergency Preparedness 0cc upat ional Radiation Public Radiation Security Safety Safety Performance Indicators Last Modified: Febr1Jaty 19, 2013 CT-Oi-Oraater Than Ora1t1n I*In1u r ri c:i .n t Data to Calculate PI U-Unique Dali,qn

~

Page 1 of 2

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

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

1Q/2013 Performance Summary - Byron 2 Legend : R=Red W==Whi t e G'l"G=Gr ,e at e r 'l'han Gr,e en I = I n au ff i c i ent Data t o Ca l cul a t e PI U=Un i q ue Dea i ,g n Y=Ye ll ow G=Gr een T'='l'hreah o l d a unde r d e v e l opment N=Not Appli cabl e D=Di a cre p ant Reactor Radiation Safeguards Safety Safety

_. Barrier Integrity Emergency Preparedness 0cc upat ional Radiation Public Radiation Security Safety Safety Most Significant Inspection Findings 1012013 No findings this quarter Noft'ldlnp tHs quarter 1=-= 1=-= 1:.1= 1=-=

4012012 No findings this quarter Ithls..-ter No ft'dlp 1=-= 1=-= 1:.1= 1=-=

3012012 No findings this quarter Ithls..-ter No ft'dlp Noft'ldlnp tHs quarter 1=-= 1=-= 1:.1= 1=-=

2012012 No findings this quarter 1=-= 1=-= 1:.1= 1=-=

Miscellaneous findings Additional Inspection & Assessment Information

+ Assessment Reports/Inspection Plans: + List of Inspection Reports (IR) 10/2013 + List of Security IR Cover Letters

+ List of Assessment Letters/I nsp e cti on PI ans 40/2012

+ Baseline Inspection Completion Information 30/2012 20/2012

+ Cross Reference Of Assessment Reports Last Modified: J1Jne 4, 2013 Page 2 of 3

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

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

2Q/2013 Performance Summary - Byron 2 Legend : R=Red W==Whi t e G'l"G=Gr ,e at e r 'l'han Gr,e en I = I n au ff i c i ent Data t o Ca l cul a t e PI U=Un i q ue Dea i ,g n Y=Ye ll ow G=Gr een T'='l'hreah o l d a unde r d e v e l opment N=Not Appli cabl e D=Di a cre p ant Reactor Radiation Safeguards Safety Safety

_. Barrier Integrity Emergency Preparedness 0cc upat ional Radiation Public Radiation Security Safety Safety Most Significant Inspection Findings 2012013 No findings this quarter Ithls..-ter No ft'dlp Noft'ldlnp tHs quarter 1=-= 1=-= 1:.1= 1=-=

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

4012012 No findings this quarter I:thls..-ter No ft'dlp 1=-= 1=-= 1:.1= 1=-=

3012012 No findings this quarter Ithls..-ter No ft'dlp Noft'ldlnp tHs quarter 1=-= 1=-= 1:.1= 1=-=

Miscellaneous findings Additional Inspection & Assessment Information

+ Assessment Reports/Inspection Plans: + List of Inspection Reports (IR) 20/2013 + List of Security IR Cover Letters

+ List of Assessment Letters/I nsp e cti on PI ans 10/2013

+ Baseline Inspection Completion Information 40/2012 30/2012

+ Cross Reference Of Assessment Reports Last Modified: September 3, 2013 Page 2 of 3

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

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

3Q/2013 Performance Summary - Byron 2 Legend : R=Red W==Whi t e G'l"G=Gr ,e at e r 'l'han Gr,e en I = I n au ff i c i ent Data t o Ca l cul a t e PI U=Un i q ue Dea i ,g n Y=Ye ll ow G=Gr een T'='l'hreah o l d a unde r d e v e l opment N=Not Appli cabl e D=Di a cre p ant Reactor Radiation Safeguards Safety Safety

_. Barrier Integrity Emergency Preparedness 0cc upat ional Radiation Public Radiation Security Safety Safety Most Significant Inspection Findings 30!2013 Noft'ldlnp tHs quarter 1=-= 1=-= 1:.1= 1=-=

2012013 No findings this quarter Ithls..-ter No ft'dlp Noft'ldlnp tHs quarter 1=-= 1=-= 1:.1= 1=-=

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

4012012 No findings this quarter Ithls..-ter No ft'dlp 1=-= 1=-= 1:.1= 1=-=

Miscellaneous findings Additional Inspection & Assessment Information

+ Assessment Reports/Inspection Plans: + List of Inspection Reports (IR) 30/2013 + List of Security IR Cover Letters

+ List of Assessment Letters/I nsp e cti on PI ans 20/2013

+ Baseline Inspection Completion Information 10/2013 40/2012

+ Cross Reference Of Assessment Reports Last Modified: December 3, 2013 Page 2 of 3

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

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

4Q/2013 Performance Summary - Byron 2 Legend : R=Red W==Whi t e G'l"G=Gr ,e at e r 'l'han Gr,e en I = I n au ff i c i ent Data t o Ca l cul a t e PI U=Un i q ue Dea i ,g n Y=Ye ll ow G=Gr een T'='l'hreah o l d a unde r d e v e l opment N=Not Appli cabl e D=Di a cre p ant Reactor Radiation Safeguards Safety Safety

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

30!2013 Noft'ldlnp tHs quarter 1=-= 1=-= 1:.1= 1=-=

2012013 No findings this quarter 1=-= 1=-= 1:.1= 1=-=

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

Miscellaneous findings Additional Inspection & Assessment Information

+ Assessment Reports/Inspection Plans: + List of Inspection Reports (IR) 40/2013 + List of Security IR Cover Letters

+ List of Assessment Letters/I nsp e cti on PI ans 30/2013

+ Baseline Inspection Completion Information 20/2013 10/2013

+ Cross Reference Of Assessment Reports Last Modified: Febr1Jaty 24, 2014 Page 2 of 3

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

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

1Q/2014 Performance Summary - Byron 2 Legend : R=Red W==Whi t e G'l"G=Gr ,e at e r 'l'han Gr,e en I = I n au ff i c i ent Data t o Ca l cul a t e PI U=Un i q ue Dea i ,g n Y=Ye ll ow G=Gr een T'='l'hreah o l d a unde r d e v e l opment N=Not Appli cabl e D=Di a cre p ant Reactor Radiation Safeguards Safety Safety

_. Barrier Integrity Emergency Preparedness 0cc upat ional Radiation Public Radiation Security Safety Safety Most Significant Inspection Findings 10!2014 Ithls..-ter No ft'dlp Noft'ldlnp tHsquarter 1=-= 1=-= 1:.1= 1=-=

40!2013 1=-= 1=-= 1:.1= 1=-=

30!2013 Noft'ldlnp tHsquarter 1=-= 1=-= 1:.1= 1=-=

2012013 No findings this quarter 1=-= 1=-= 1:.1= 1=-=

Miscellaneous findings Additional Inspection & Assessment Information

+ Assessment Reports/Inspection Plans: + List of Inspection Reports (IR) 10/2014 + List of Security IR Cover Letters

+ List of Assessment Letters/I nsp e cti on PI ans 40/2013

+ Baseline Inspection Completion Information 30/2013 20/2013

+ Cross Reference Of Assessment Reports Last Modified: May 30, 2014 Page 2 of 3

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

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

2Q/2014 Performance Summary - Byron 2 Le gend : R= Red W=Whi te G'l'G=Gr,e ater 'l'han Gr,e en I = I n a uffi c i ent Da ta to Ca l cul a t e P I U= Un i que Dea i ,gn Y= Ye ll ow G=Gre en 'l'='l'hreahol d a unde r d e v e l o pm=ll.t N= Not Appli cabl e D=Di a cre p ant Reactor Radiation Safeguards Safety Safety T T 0cc upat ional Public Initiating Mitigating Barrier Emergency Radiation Radiation Security Events Systems Integrity Preparedness Safety Safety Most Significant Inspection Findings 20!20141=-= 1=-= 1=-= 1=-= 1=-= 1=-= 1=-=

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

40!2013 1=-= 1=-= 1=-= 1=-=

30!2013 1=-= 1=-= 1=-= 1=-= 1=-=

Miscellaneous findings Additional Inspection & Assessment Information

+ Assessment Reports/Inspection Plans: + List of Inspection Reports (IR) 20/2014 + List of Security IR Cover Letters

+ List of Assessment Letters/Inspection Plans 10/2014

+ Baseline Inspection Completion Information 40/2013 30/2013

+ Cross Reference Of Assessment Reports Last Modified: August 29, 2014 Page 2 of 3

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

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

3Q/2014 Performance Summary - Byron 2 Le gend : R= Red W=Whi te G'l'G=Gr,e ater 'l'han Gr,e en I = I n a uffi c i ent Da ta to Ca l cul a t e P I U= Un i que Dea i ,gn Y= Ye ll ow G=Gre en 'l'='l'hreahol d a unde r d e v e l o pm=ll.t N= Not Appli cabl e D=Di a cre p ant Reactor Radiation Safeguards Safety Safety T T 0cc upat ional Public Initiating Mitigating Barrier Emergency Radiation Radiation Security Events Systems Integrity Preparedness Safety Safety Most Significant Inspection Findings 30!20141=-= 1=-= 1=-= 1=-= 1=-= 1=-= 1=-=

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

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

40!2013 1=-= 1=-= 1=-= 1=-=

Miscellaneous findings Additional Inspection & Assessment Information

+ Assessment Reports/Inspection Plans: + List of Inspection Reports (IR) 30/2014 + List of Security IR Cover Letters

+ List of Assessment Letters/Inspection Plans 20/2014

+ Baseline Inspection Completion Information 10/2014 40/2013

+ Cross Reference Of Assessment Reports Last Modified: November 26, 2014 Page 2 of 3

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

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

4Q/2014 Performance Summary - Byron 2 Le gend : R= Red W=Whi te G'l'G=Gr,e ater 'l'han Gr,e en I = I n a uffi c i ent Da ta to Ca l cul a t e P I U= Un i que Dea i ,gn Y= Ye ll ow G=Gre en 'l'='l'hreahol d a unde r d e v e l o pm=ll.t N= Not Appli cabl e D=Di a cre p ant Reactor Radiation Safeguards Safety Safety T T 0cc upat ional Public Initiating Mitigating Barrier Emergency Radiation Radiation Security Events Systems Integrity Preparedness 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: + List of Inspection Reports (IR) 40/2014 + List of Security IR Cover Letters

+ List of Assessment Letters/Inspection Plans 30/2014

+ Baseline Inspection Completion Information 20/2014 10/2014

+ Cross Reference Of Assessment Reports Last Modified: Febri.JBry 26, 2015 Page 2 of 3

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

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

1Q/2015 Performance Summary - Byron 2 Legend : R=Red W=Wh i t e G~Gr eat e r 'l'han Gr,e en I = I n auffi c i ent Data to Calculat e PI U=Uni que Deai,g n Y=Yellow G=Green 'l'='l'hreahol d a unde r devel op ment N=Not Appli cable O=Dia crep ant Reactor Radiation Safeguards Safety Safety T T Occupational Public Initiating Mitigating Barrier Emergency Radiation Radiation Security Events Systems Integrity Preparedness Safety Safety Most Significant Inspection Findings 10!20151=-= 1=-= 1=-= 1=-= 1=-= 1=-=

40!20141=-= 1=-= 1=-= 1=-=

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

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

Miscellaneous findings Additional Inspection & Assessment Information

+ Assessment Reports/Inspection Plans: + List of Inspection Reports (IR) 10/2015 + List of Security IR Cover Letters

+ List of Assessment Letters/Inspection Plans 40/2014

+ Baseline Inspection Completion Information 30/2014 20/2014

+ Cross Reference Of Assessment Reports Last Modified: June 16, 2015 Page 2 of 3

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

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

2Q/2015 Performance Summary - Byron 2 Legend : R=Red W=Wh i t e G~Gr eat e r 'l'han Gr,e en I = I n auffi c i ent Data to Calculat e PI U=Uni que Deai,g n Y=Yellow G=Green 'l'='l'hreahol d a unde r devel op ment N=Not Appli cable O=Dia crep ant Reactor Radiation Safeguards Safety Safety T T Occupational Public Initiating Mitigating Barrier Emergency Radiation Radiation Security Events Systems Integrity Preparedness Safety Safety Most Significant Inspection Findings 20!20151=-= 1=-= 1=-= 1=-= 1=-= 1=-= 1=-=

10!20151=-= 1=-= 1=-= 1=-= 1=-= 1=-=

40!20141=-= 1=-= 1=-= 1=-=

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

Miscellaneous findings Additional Inspection & Assessment Information

+ Assessment Reports/Inspection Plans: + List of Inspection Reports (IR) 20/2015 + List of Security IR Cover Letters

+ List of Assessment Letters/Inspection Plans 10/2015

+ Baseline Inspection Completion Information 40/2014 30/2014

+ Cross Reference Of Assessment Reports Last Modified: A1.Jg1.Jst 7, 2015 Page 2 of 3

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

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

3Q/2015 Performance Summary - Byron 2 Legend : R=Red W=Wh i t e G~Gr eat e r 'l'han Gr,e en I = I n auffi c i ent Data to Calculat e PI U=Uni que Deai,g n Y=Yellow G=Green 'l'='l'hreahol d a unde r devel op ment N=Not Appli cable O=Dia crep ant Reactor Radiation Safeguards Safety Safety T T Occupational Public Initiating Mitigating Barrier Emergency Radiation Radiation Security Events Systems Integrity Preparedness Safety Safety Most Significant Inspection Findings 30!20151=-= 1=-= 1=-= 1=-=

20!20151=-= 1=-= 1=-= 1=-= 1=-=

10!20151=-= 1=-= 1=-= 1=-= 1=-=

40!20141=-= 1=-= 1=-=

Miscellaneous findings Additional Inspection & Assessment Information

+ Assessment Reports/Inspection Plans: + List of Inspection Reports (IR) 30/2015 + List of Security IR Cover Letters

+ List of Assessment Letters/Inspection Plans 20/2015

+ Baseline Inspection Completion Information 10/2015 40/2014

+ Cross Reference Of Assessment Reports Last Modified: December 15, 2015 Page 2 of 3

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

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

4Q/2015 Performance Summary - Byron 2 Legend : R= R ed W=Whi t e G'l"G=Gr,e at e r 'l'han Gr,e en I = I n a uffi c i ent Da ta to Ca l cul a t e P I U= Uni que Dea i ,gn Y= Ye l l ow G=Green 'l'='l'hre ahol d a unde r d e v e l o pment N= Not Appl i cabl e D=Di a cre p ant Reactor Radiation Safeguards Safety Safety

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

30!20151=-= 1=-= 1=-= 1=-=

20!20151=-= 1=-= 1=-= 1=-=

10!20151=-= 1=-= 1=-= 1=-= 1=-=

Miscellaneous findings Additional Inspection & Assessment Information

+ Assessment Reports/Inspection Plans: + List of Inspection Reports (IR) 40/2015 + List of Security IR Cover Letters

+ List of Assessment Letters/I nsp e cti on PI ans 30/2015

+ Baseline Inspection Completion Information 20/2015 10/2015

+ Cross Reference Of Assessment Reports Last Modified: March 1, 2016 Page 2 of 3

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

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

1Q/2016 Performance Summary - Byron 2 Legend : R= R ed W=Whi t e G'l"G=Gr,e at e r 'l'han Gr,e en I = I n a uffi c i ent Da ta to Ca l cul a t e P I U= Uni que Dea i ,gn Y= Ye l l ow G=Green 'l'='l'hre ahol d a unde r d e v e l o pment N= Not Appl i cabl e D=Di a cre p ant Reactor Radiation Safeguards Safety Safety

_. Barrier Integrity Emergency Preparedness 0cc upat ional Radiation Public Radiation Security Safety Safety 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: + List of Inspection Reports (IR) 10/2016 + List of Security IR Cover Letters

+ List of Assessment Letters/I nsp e cti on PI ans 40/2015

+ Baseline Inspection Completion Information 30/2015 20/2015

+ Cross Reference Of Assessment Reports Last Modified: JIJ/y 11, 2016 Page 2 of 3

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

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

2Q/2016 Performance Summary - Byron 2 Legend : R= R ed W=Whi t e G'l"G=Gr,e at e r 'l'han Gr,e en I = I n a uffi c i ent Da ta to Ca l cul a t e P I U= Uni que Dea i ,gn Y= Ye l l ow G=Green 'l'='l'hre ahol d a unde r d e v e l o pment N= Not Appl i cabl e D=Di a cre p ant Reactor Radiation Safeguards Safety Safety

_. Barrier Integrity Emergency Preparedness 0cc upat ional Radiation Public Radiation Security Safety Safety Most Significant Inspection Findings 20!2016 1=-= 1=-= 1=-=

10!20161=-= 1=-= 1=-= 1=-= 1=-= 1=-=

40!20151=-= 1=-= 1=-= 1=-= 1=-= 1=-=

30!20151=-= 1=-= 1=-= 1=-= 1=-=

Miscellaneous findings Additional Inspection & Assessment Information

+ Assessment Reports/Inspection Plans: + List of Inspection Reports (IR) 20/2016 + List of Security IR Cover Letters

+ List of Assessment Letters/I nsp e cti on PI ans 10/2016

+ Baseline Inspection Completion Information 40/2015 30/2015

+ Cross Reference Of Assessment Reports Last Modified: AiJgiJst 29, 2016 Page 2 of 3

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

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

3Q/2016 Performance Summary - Byron 2 Legend : R= R ed W=Whi t e G'l"G=Gr,e at e r 'l'han Gr,e en I = I n a uffi c i ent Da ta to Ca l cul a t e P I U= Uni que Dea i ,gn Y= Ye l l ow G=Green 'l'='l'hre ahol d a unde r d e v e l o pment N= Not Appl i cabl e D=Di a cre p ant Reactor Radiation Safeguards Safety Safety

_. Barrier Integrity Emergency Preparedness 0cc upat ional Radiation Public Radiation Security Safety Safety Most Significant Inspection Findings 30!20161=-= 1=-= 1=-= 1=-= 1=-=

20!2016 1=-= 1=-= 1=-= 1=-=

10!20161=-= 1=-= 1=-= 1=-= 1=-= 1=-= 1=-=

40!20151=-= 1=-= 1=-= 1=-= 1=-= 1=-= 1=-=

Miscellaneous findings Additional Inspection & Assessment Information

+ Assessment Reports/Inspection Plans: + List of Inspection Reports (IR) 30/2016 + List of Security IR Cover Letters

+ List of Assessment Letters/I nsp e cti on PI ans 20/2016

+ Baseline Inspection Completion Information 10/2016 40/2015

+ Cross Reference Of Assessment Reports Last Modified: December 8, 2016 Page 2 of 3

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

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

4Q/2016 Performance Summary - Byron 2 Legend : R= R ed W=Whi t e G'l"G=Gr,e at e r 'l'han Gr,e en I = I n a uffi c i ent Da ta to Ca l cul a t e P I U= Uni que Dea i ,gn Y= Ye l l ow G=Green 'l'='l'hre ahol d a unde r d e v e l o pment N= Not Appl i cabl e D=Di a cre p ant Reactor Radiation Safeguards Safety Safety