ML15106A812: Difference between revisions

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==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. MF5 5 67 AND MF5 5 68)   


==Dear Mr. Gallagher:==
==Dear Mr. Gallagher:==
Line 28: Line 30:
On April 7
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 sever e accidents mitigation alternatives (SAMA) analysis of the LaSalle County Station, Units 1 and 2 (LSCS) license renewal application.
-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 sever e 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
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.
. 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.
Enclos ed is a list of the audit participa n t s.
Enclosed is a list of the audit participa nts.
The audit began on April 7, 201 5, with an entrance meeting to introduce participants and discuss audit logistics. Next, participa n ts discussed the following topics relative to the Severe Accident Mitigation Alternative (SAMA) analysis:  
The audit began on April 7, 2015, with an entrance meeting to introduce participants and discuss audit logistics
. Next, participa nts 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
  (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.
-benefit analysis and site-specific cost estimates, and (7) consideration of potentially lower or more effective alternative SAMAs.


M. Gallagher NRC staff is preparing requests for additional information (RAIs), which will be issued in a subsequent letter.
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
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/
. Sincerely,
  /RA/
Brian D. Wittick, Chief Projects Branch 2 Division of License Renewal Office of Nuclear Reactor Regulation
Brian D. Wittick, Chief Projects Branch 2 Division of License Renewal Office of Nuclear Reactor Regulation


Line 47: Line 45:
==Enclosure:==
==Enclosure:==


As stated cc w/encl
As stated cc w/encl:  Listserv 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
:  Listserv 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
-415-6223 or by e
-mail at David.Drucker@nrc.gov
-mail at David.Drucker@nrc.gov. Sincerely, /RA/
. Sincerely,
  /RA/
Brian D. Wittick, Chief Projects Branch 2 Division of License Renewal Office of Nuclear Reactor Regulation
Brian D. Wittick, Chief Projects Branch 2 Division of License Renewal Office of Nuclear Reactor Regulation


Line 60: Line 55:


==Enclosure:==
==Enclosure:==
As stated cc w/encl:  Listserv DISTRIBUTION: See next page ADAMS Accession No.:  ML15106A812 (Letter)  *concurred via email OFFICE LA:DLR:RPB2
As stated cc w/encl:  Listserv DISTRIBUTION: See next page ADAMS Accession No.:  ML1 5106A812 (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 OFFICIAL RECORD COPY
* PM:RPB2:DLR BC:RPB2:DLR NAME SWoods DDrucker BWittick DATE 4/20/201 5 4/15/2015 4/24/15 OFFICIAL RECORD COPY


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

Revision as of 04:45, 9 July 2018

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


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. MF5 5 67 AND MF5 5 68)

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 sever e 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.

Enclos ed is a list of the audit participa n t s.

The audit began on April 7, 201 5, with an entrance meeting to introduce participants and discuss audit logistics. Next, participa n ts 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.

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. 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 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. 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 DISTRIBUTION: See next page ADAMS Accession No.: ML1 5106A812 (Letter) *concurred via email OFFICE LA:DLR:RPB2

  • PM:RPB2:DLR BC:RPB2:DLR NAME SWoods DDrucker BWittick DATE 4/20/201 5 4/15/2015 4/24/15 OFFICIAL RECORD COPY

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