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| number = ML15106A812
| number = ML15106A812
| issue date = 04/24/2015
| issue date = 04/24/2015
| title = 04/07-08/2015 Summary of Severe Accidents Mitigation Alternatives Audit for LaSalle County Station, Units 1 and 2 (TAC Nos. MF5567 and MF5568)
| title = 04/07-08/2015 Summary of Severe Accidents Mitigation Alternatives Audit for LaSalle County Station, Units 1 and 2
| author name = Wittick B D
| author name = Wittick B
| author affiliation = NRC/NRR/DLR/RPB2
| author affiliation = NRC/NRR/DLR/RPB2
| addressee name = Gallagher M P
| addressee name = Gallagher M
| addressee affiliation = Exelon Generation Co, LLC
| addressee affiliation = Exelon Generation Co, LLC
| docket = 05000373, 05000374
| docket = 05000373, 05000374
| license number =  
| license number =  
| contact person = Drucker D M, 415-6223
| contact person = Drucker D, 415-6223
| case reference number = TAC MF5567, TAC MF5568
| case reference number = TAC MF5567, TAC MF5568
| document type = Letter, Meeting Summary
| document type = Letter, Meeting Summary
Line 18: Line 18:


=Text=
=Text=
{{#Wiki_filter:UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20555-0001 April 24, 2015     Mr. Michael P. Gallagher Vice President, License Renewal Projects Exelon Generation Company, LLC 200 Exelon Way Kennett Square, PA 19348  
{{#Wiki_filter:UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20555-0001 April 24, 2015 Mr. Michael P. Gallagher Vice President, License Renewal Projects Exelon Generation Company, LLC 200 Exelon Way Kennett Square, PA 19348  


==SUBJECT:==
==SUBJECT:==
SUMMARY OF THE SEVERE ACCIDENT MITIGATION ALTERNATIVES AUDIT FOR LASALLE COUNTY STATION, UNITS 1 AND 2 (TAC NOS. MF5567 AND MF5568)
==SUMMARY==
OF THE SEVERE ACCIDENT MITIGATION ALTERNATIVES AUDIT FOR LASALLE COUNTY STATION, UNITS 1 AND 2 (TAC NOS.
MF5567 AND MF5568)  


==Dear Mr. Gallagher:==
==Dear Mr. Gallagher:==
On April 7-8, 2015, a review team consisting of staff from the U.S. Nuclear Regulatory Commission (NRC) and contractors from the Center for Nuclear Waste Regulatory Analyses participated in a site audit at the Exelon Generation Company, LLC (Exelon) office in Kennett Square, Pennsylvania, related to the severe accidents mitigation alternatives (SAMA) analysis of the LaSalle County Station, Units 1 and 2 (LSCS) license renewal application. The goal of the audit was to review documentation and gather information to ensure that the environmental requirements for license renewal, as codified in Title 10 of the Code of Federal Regulations Part 51 were met. A letter dated March 31, 2015, and available in the Agencywide Documents Access and Management System under Main Library (ML) 15083A546, was sent to you containing an audit needs list in support of the audit. Enclosed is a list of the audit participants.
On April 7-8, 2015, a review team consisting of staff from the U.S. Nuclear Regulatory Commission (NRC) and contractors from the Center for Nuclear Waste Regulatory Analyses participated in a site audit at the Exelon Generation Company, LLC (Exelon) office in Kennett Square, Pennsylvania, related to the severe accidents mitigation alternatives (SAMA) analysis of the LaSalle County Station, Units 1 and 2 (LSCS) license renewal application. The goal of the audit was to review documentation and gather information to ensure that the environmental requirements for license renewal, as codified in Title 10 of the Code of Federal Regulations Part 51 were met. A {{letter dated|date=March 31, 2015|text=letter dated March 31, 2015}}, and available in the Agencywide Documents Access and Management System under Main Library (ML) 15083A546, was sent to you containing an audit needs list in support of the audit. Enclosed is a list of the audit participants.
The audit began on April 7, 2015, with an entrance meeting to introduce participants and discuss audit logistics. Next, participants discussed the following topics relative to the Severe Accident Mitigation Alternative (SAMA) analysis: (1) Level 1 Probabilistic Risk Assessment (PRA), (2) Level 2 model PRA, (3) external events, (4) Level 3 consequence analysis, (5) selection and screening of Phase 1 SAMAs, (6) cost-benefit analysis and site-specific cost estimates, and (7) consideration of potentially lower or more effective alternative SAMAs.
The audit began on April 7, 2015, with an entrance meeting to introduce participants and discuss audit logistics. Next, participants discussed the following topics relative to the Severe Accident Mitigation Alternative (SAMA) analysis: (1) Level 1 Probabilistic Risk Assessment (PRA), (2) Level 2 model PRA, (3) external events, (4) Level 3 consequence analysis, (5) selection and screening of Phase 1 SAMAs, (6) cost-benefit analysis and site-specific cost estimates, and (7) consideration of potentially lower or more effective alternative SAMAs.  
NRC staff is preparing requests for additional information (RAIs), which will be issued in a subsequent letter. If you have any questions on this matter, please contact David Drucker by telephone at 301-415-6223 or by e-mail at David.Drucker@nrc.gov. Sincerely, /RA/
 
Brian D. Wittick, Chief Projects Branch 2 Division of License Renewal Office of Nuclear Reactor Regulation Docket Nos. 50-373 and 50-374
NRC staff is preparing requests for additional information (RAIs), which will be issued in a subsequent letter. If you have any questions on this matter, please contact David Drucker by telephone at 301-415-6223 or by e-mail at David.Drucker@nrc.gov.
Sincerely,  
/RA/
Brian D. Wittick, Chief Projects Branch 2 Division of License Renewal Office of Nuclear Reactor Regulation Docket Nos. 50-373 and 50-374  


==Enclosure:==
==Enclosure:==
As stated cc w/encl: Listserv  
As stated cc w/encl: Listserv  


ML15106A812 (Letter) *concurred via email OFFICE LA:DLR:RPB2* PM:RPB2:DLR BC:RPB2:DLR NAME SWoods DDrucker BWittick DATE 4/20/2015 4/15/2015 4/24/15 Letter to Michael Gallagher from Brian D. Wittick dated April 24, 2015  
ML15106A812 (Letter)  
*concurred via email OFFICE LA:DLR:RPB2*
PM:RPB2:DLR BC:RPB2:DLR NAME SWoods DDrucker BWittick DATE 4/20/2015 4/15/2015 4/24/15  
 
Letter to Michael Gallagher from Brian D. Wittick dated April 24, 2015  


==SUBJECT:==
==SUBJECT:==
SUMMARY OF THE SEVERE ACCIDENTS MITIGATION ALTERNATIVES AUDIT FOR LASALLE COUNTY STATION, UNITS 1 AND 2 (TAC NOS. MF5567 AND MF5568)   DISTRIBUTION: HARD COPY: DLR RF E-MAIL: PUBLIC RidsNrrDlr Resource RidsNrrDlrRpb1 Resource RidsNrrDlrRpb2 Resource RidsNrrDlrRerb Resource RidsNrrDlrRarb Resource RidsNrrDlrRasb Resource RidsNrrDlrRsrg Resource RidsNrrPMLaSalle Resource --------------- J. Mitchell R. Plasse Y. Diaz-Sanabria D. Drucker B. Wittick J. Dozier J. Wachutka, OGC D. McIntyre, OPA M. Kunowski, RIII V. Mitlyng, RIII P. Chandrathil, RIII H. Logaras, RIII A. Stone, RIII C. Lipa, RIII S. Sheldon, RIII J. Robbins, RIII R. Ruiz, RIII ENCLOSURE LASALLE COUNTY STATION, UNITS 1 AND 2 LICENSE RENEWAL APPLICATION REVIEW SEVERE ACCIDENTS MITIGATION ALTERNATIVES AUDIT April 7-8, 2015   PARTICIPANT   ORGANIZATION David Drucker   U.S. Nuclear Regulatory Commission (NRC) Jerry Dozier     NRC Bob Schmidt     Center for Nuclear Waste Regulatory Analyses (CNWRA) Roland Benke   CNWRA Daniel Speaker   CNWRA Gene Kelly   Exelon Generation Company, LLC (Exelon) Chris Wilson   Exelon Nancy Ranek   Exelon Mike Gallagher   Exelon Don MacLeod   ERIN Engineering Heather Fox   ERIN Engineering Alex Duvall   ERIN Engineering Mike Banko   FirstEnergy Rich Siembor   FirstEnergy}}
==SUMMARY==
OF THE SEVERE ACCIDENTS MITIGATION ALTERNATIVES AUDIT FOR LASALLE COUNTY STATION, UNITS 1 AND 2 (TAC NOS.
MF5567 AND MF5568)
DISTRIBUTION:
HARD COPY:
DLR RF E-MAIL:
PUBLIC RidsNrrDlr Resource RidsNrrDlrRpb1 Resource RidsNrrDlrRpb2 Resource RidsNrrDlrRerb Resource RidsNrrDlrRarb Resource RidsNrrDlrRasb Resource RidsNrrDlrRsrg Resource RidsNrrPMLaSalle Resource J. Mitchell R. Plasse Y. Diaz-Sanabria D. Drucker B. Wittick J. Dozier J. Wachutka, OGC D. McIntyre, OPA M. Kunowski, RIII V. Mitlyng, RIII P. Chandrathil, RIII H. Logaras, RIII A. Stone, RIII C. Lipa, RIII S. Sheldon, RIII J. Robbins, RIII R. Ruiz, RIII
 
ENCLOSURE LASALLE COUNTY STATION, UNITS 1 AND 2 LICENSE RENEWAL APPLICATION REVIEW SEVERE ACCIDENTS MITIGATION ALTERNATIVES AUDIT April 7-8, 2015 PARTICIPANT ORGANIZATION David Drucker U.S. Nuclear Regulatory Commission (NRC)
Jerry Dozier NRC Bob Schmidt Center for Nuclear Waste Regulatory Analyses (CNWRA)
Roland Benke CNWRA Daniel Speaker CNWRA Gene Kelly Exelon Generation Company, LLC (Exelon)
Chris Wilson Exelon Nancy Ranek Exelon Mike Gallagher Exelon Don MacLeod ERIN Engineering Heather Fox ERIN Engineering Alex Duvall ERIN Engineering Mike Banko FirstEnergy Rich Siembor FirstEnergy}}

Latest revision as of 13:18, 10 January 2025

04/07-08/2015 Summary of Severe Accidents Mitigation Alternatives Audit for LaSalle County Station, Units 1 and 2
ML15106A812
Person / Time
Site: LaSalle  Constellation icon.png
Issue date: 04/24/2015
From: Brian Wittick
License Renewal Projects Branch 2
To: Gallagher M
Exelon Generation Co
Drucker D, 415-6223
References
TAC MF5567, TAC MF5568
Download: ML15106A812 (5)
v • d • e


Text

UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20555-0001 April 24, 2015 Mr. Michael P. Gallagher Vice President, License Renewal Projects Exelon Generation Company, LLC 200 Exelon Way Kennett Square, PA 19348

SUBJECT:

SUMMARY

OF THE SEVERE ACCIDENT MITIGATION ALTERNATIVES AUDIT FOR LASALLE COUNTY STATION, UNITS 1 AND 2 (TAC NOS.

MF5567 AND MF5568)

Dear Mr. Gallagher:

On April 7-8, 2015, a review team consisting of staff from the U.S. Nuclear Regulatory Commission (NRC) and contractors from the Center for Nuclear Waste Regulatory Analyses participated in a site audit at the Exelon Generation Company, LLC (Exelon) office in Kennett Square, Pennsylvania, related to the severe accidents mitigation alternatives (SAMA) analysis of the LaSalle County Station, Units 1 and 2 (LSCS) license renewal application. The goal of the audit was to review documentation and gather information to ensure that the environmental requirements for license renewal, as codified in Title 10 of the Code of Federal Regulations Part 51 were met. A letter dated March 31, 2015, and available in the Agencywide Documents Access and Management System under Main Library (ML) 15083A546, was sent to you containing an audit needs list in support of the audit. Enclosed is a list of the audit participants.

The audit began on April 7, 2015, with an entrance meeting to introduce participants and discuss audit logistics. Next, participants discussed the following topics relative to the Severe Accident Mitigation Alternative (SAMA) analysis: (1) Level 1 Probabilistic Risk Assessment (PRA), (2) Level 2 model PRA, (3) external events, (4) Level 3 consequence analysis, (5) selection and screening of Phase 1 SAMAs, (6) cost-benefit analysis and site-specific cost estimates, and (7) consideration of potentially lower or more effective alternative SAMAs.

NRC staff is preparing requests for additional information (RAIs), which will be issued in a subsequent letter. If you have any questions on this matter, please contact David Drucker by telephone at 301-415-6223 or by e-mail at David.Drucker@nrc.gov.

Sincerely,

/RA/

Brian D. Wittick, Chief Projects Branch 2 Division of License Renewal Office of Nuclear Reactor Regulation Docket Nos. 50-373 and 50-374

Enclosure:

As stated cc w/encl: Listserv

ML15106A812 (Letter)

  • concurred via email OFFICE LA:DLR:RPB2*

PM:RPB2:DLR BC:RPB2:DLR NAME SWoods DDrucker BWittick DATE 4/20/2015 4/15/2015 4/24/15

Letter to Michael Gallagher from Brian D. Wittick dated April 24, 2015

SUBJECT:

SUMMARY

OF THE SEVERE ACCIDENTS MITIGATION ALTERNATIVES AUDIT FOR LASALLE COUNTY STATION, UNITS 1 AND 2 (TAC NOS.

MF5567 AND MF5568)

DISTRIBUTION:

HARD COPY:

DLR RF E-MAIL:

PUBLIC RidsNrrDlr Resource RidsNrrDlrRpb1 Resource RidsNrrDlrRpb2 Resource RidsNrrDlrRerb Resource RidsNrrDlrRarb Resource RidsNrrDlrRasb Resource RidsNrrDlrRsrg Resource RidsNrrPMLaSalle Resource J. Mitchell R. Plasse Y. Diaz-Sanabria D. Drucker B. Wittick J. Dozier J. Wachutka, OGC D. McIntyre, OPA M. Kunowski, RIII V. Mitlyng, RIII P. Chandrathil, RIII H. Logaras, RIII A. Stone, RIII C. Lipa, RIII S. Sheldon, RIII J. Robbins, RIII R. Ruiz, RIII

ENCLOSURE LASALLE COUNTY STATION, UNITS 1 AND 2 LICENSE RENEWAL APPLICATION REVIEW SEVERE ACCIDENTS MITIGATION ALTERNATIVES AUDIT April 7-8, 2015 PARTICIPANT ORGANIZATION David Drucker U.S. Nuclear Regulatory Commission (NRC)

Jerry Dozier NRC Bob Schmidt Center for Nuclear Waste Regulatory Analyses (CNWRA)

Roland Benke CNWRA Daniel Speaker CNWRA Gene Kelly Exelon Generation Company, LLC (Exelon)

Chris Wilson Exelon Nancy Ranek Exelon Mike Gallagher Exelon Don MacLeod ERIN Engineering Heather Fox ERIN Engineering Alex Duvall ERIN Engineering Mike Banko FirstEnergy Rich Siembor FirstEnergy

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