ML15106A812: Difference between revisions

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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
| author name = Wittick B
| author affiliation = NRC/NRR/DLR/RPB2
| author affiliation = NRC/NRR/DLR/RPB2
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=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==
==SUMMARY==
OF THE SEVERE ACCIDENT MITIGATION ALTERNATIVES AUDIT FOR LASALLE COUNTY STATION, UNITS 1 AND 2 (TAC NOS.
OF THE SEVERE ACCIDENT MITIGATION ALTERNATIVES AUDIT FOR LASALLE COUNTY STATION, UNITS 1 AND 2 (TAC NOS.
MF5567 AND MF5568)
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|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.


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.
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.
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.
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


M. Gallagher                              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.
==Enclosure:==
Sincerely,
As stated cc w/encl: Listserv
                                              /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:==
ML15106A812 (Letter)
As stated cc w/encl: Listserv
*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


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


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


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)
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)
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)
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 ENCLOSURE}}
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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