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==SUBJECT:==
==SUBJECT:==
NINE MILE POINT NUCLEAR STATION, UNIT 2 -DRAFT SAFETY EVALUATION FOR LICENSE AMENDMENT REQUEST-RE: MAXIMUM EXTENDED LOAD LINE LIMIT PLUS (MELLLA+) (TAC NO. MF3056)  
 
NINE MILE POINT NUCLEAR STATION, UNIT 2 -DRAFT SAFETY EVALUATION FOR LICENSE AMENDMENT REQUEST-RE: MAXIMUM EXTENDED LOAD LINE LIMIT PLUS (MELLLA+)  
(TAC NO. MF3056)  


==Dear Mr. Orphanos:==
==Dear Mr. Orphanos:==
By letter dated November 1, 2013, as supplemented by letters dated January 21, February 14, February 25, March 10, May 14, June 13, December 11, 2014, and February 18, 2015, Nine Mile point Nuclear Station (NMPNS, the licensee) submitted a license amendment request (LAR) to the U.S. Nuclear Regulatory Commission (NRC) requesting changes to the Nine Mile Point Nuclear Station Unit No. 2 (NMP2), Technical Specifications (TSs). The proposed amendment includes changes to the NMP2 TS necessary to: (1) implement the Maximum Extended Load Line Limit Analysis Plus expanded operating domain; (2) change the stability solution to Detect and Suppress Solution -Confirmation Density; (3) use the TRACG04 analysis code; and (4) increase the Safety Limit Minimum Critical Power Ratio for two recirculation loops in operation. Enclosed for your review and comment is a copy of the NRC staff's draft safety evaluation (SE) for the LAR. Pursuant to Section 2.390 of Title 10 of the Code of Federal Regulations (10 CFR), we have indicated the proprietary information in the SE by double square brackets, i.e., [[ ]], based on such information in your submittals. The purpose of this letter is to provide you with the opportunity to comment on the proprietary aspects. If you believe that any information in the enclosure is not correctly marked with respect to the proprietary nature, or, should have been marked as proprietary information, please identify such information line-by-line, including the source reference and define the basis pursuant to the criteria of 10 CFR 2.390. Also, please provide your comments on any factual errors or clarity concerns contained in the enclosed draft proprietary SE. The final proprietary and proprietary SEs will be issued after making any necessary changes. The final non-proprietary SE will be made publicly available. Enclosure transmitted herewith contains Official Use Only -Proprietary Information. When separated from Enclosure, this document is decontrolled. OFFICIAL USE ONLY PROPRIETARY INFORMATION OFFICIAL USE ONLY PROPRIETARY INFORMATION P. M. Orphanos To facilitate the NRC staff's review of your comments, please provide a marked-up copy of the draft proprietary SE showing proposed changes & comments, along with a summary table of the proposed changes. If you have any questions, please contact me at 301-415-3308. Docket No. 50-410 Enclosure(s): As stated cc w/encls: Sincerely, -Bhalchandra Vaidya, Project Manager Plant Licensing Branch 1-1 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation OFFICIAL USE ONLY PROPRIETARY INFORMATION OFFICIAL USE ONLY PROPRIETARY INFORMATION UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20555-0001 ENCLOSURE NINE MILE POINT UNIT 2 DOCKET NO. 50-410 LICENSE AMENDMENT REQUEST RE: MELLLA+ TRANSMITTAL OF AMENDMENT DRAFT SAFETY EVALUATION TO LICENSEE This document contains proprietary information pursuant to Title 1 O of the Code of Federal Regulations Section 2.390. Proprietary information is identified by text enclosed within double brackets [[ ]]. ADAMS Accession No. ML 15118A004 OFFICIAL USE ONLY PROPRIETARY INFORMATION 


Package: ML 15118A688, C I ML 15105A443 P over etter: ' OFFICE DORL/LPL 1-1 \PM NAME BVaidya DATE 4/29/2015 RidsRgn1 MailCenter RidsAcrsAcnw_MailCTR DSchroder, Region 1 . t D ftSE ML15118A004 roprie ary ra DORL/LPL 1-1\LA DORL/LPL 1-1 /BC (A) KGoldstein MDudek 4/28/2015 5/01/2015}}
By letter dated November 1, 2013, as supplemented by letters dated January 21, February 14, February 25, March 10, May 14, June 13, December 11, 2014, and February 18, 2015, Nine Mile point Nuclear Station (NMPNS, the licensee) submitted a license amendment request (LAR) to the U.S. Nuclear Regulatory Commission (NRC) requesting changes to the Nine Mile Point Nuclear Station Unit No. 2 (NMP2), Technical Specifications (TSs). The proposed amendment includes changes to the NMP2 TS necessary to: (1) implement the Maximum Extended Load Line Limit Analysis Plus expanded operating domain; (2) change the stability solution to Detect and Suppress Solution
-Confirmation Density; (3) use the TRACG04 analysis code; and (4) increase the Safety Limit Minimum Critical Power Ratio for two recirculation loops in operation.
Enclosed for your review and comment is a copy of the NRC staff's draft safety evaluation (SE) for the LAR. Pursuant to Section 2.390 of Title 10 of the Code of Federal Regulations (10 CFR), we have indicated the proprietary information in the SE by double square brackets, i.e., [[ ]], based on such information in your submittals.
The purpose of this letter is to provide you with the opportunity to comment on the proprietary aspects.
If you believe that any information in the enclosure is not correctly marked with respect to the proprietary nature, or, should have been marked as proprietary information, please identify such information line-by-line, including the source reference and define the basis pursuant to the criteria of 10 CFR 2.390. Also, please provide your comments on any factual errors or clarity concerns contained in the enclosed draft proprietary SE. The final proprietary and proprietary SEs will be issued after making any necessary changes.
The final non-proprietary SE will be made publicly available.
Enclosure transmitted herewith contains Official Use Only -Proprietary Information.
When separated from Enclosure, this document is decontrolled.
OFFICIAL USE ONLY PROPRIETARY INFORMATION OFFICIAL USE ONLY PROPRIETARY INFORMATION P. M. Orphanos To facilitate the NRC staff's review of your comments, please provide a marked-up copy of the draft proprietary SE showing proposed changes & comments, along with a summary table of the proposed changes.
If you have any questions, please contact me at 301-415-3308.
Docket No. 50-410 Enclosure(s):
As stated cc w/encls:
Sincerely, -Bhalchandra Vaidya, Project Manager Plant Licensing Branch 1-1 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation OFFICIAL USE ONLY PROPRIETARY INFORMATION OFFICIAL USE ONLY PROPRIETARY INFORMATION UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20555-0001 ENCLOSURE NINE MILE POINT UNIT 2 DOCKET NO. 50-410 LICENSE AMENDMENT REQUEST RE: MELLLA+ TRANSMITTAL OF AMENDMENT DRAFT SAFETY EVALUATION TO LICENSEE This document contains proprietary information pursuant to Title 1 O of the Code of Federal Regulations Section 2.390. Proprietary information is identified by text enclosed within double brackets
[[ ]]. ADAMS Accession No. ML 15118A004 OFFICIAL USE ONLY PROPRIETARY INFORMATION OFFICIAL USE ONLY PROPRIETARY INFORMATION P. To facilitate the NRC staff's review of your comments, please provide a marked-up copy of the draft proprietary SE showing proposed changes & comments, along with a summary table of the proposed changes.
If you have any questions, please contact me at 301-415-3308.
Docket No. 50-410 Enclosure(s):
As stated Sincerely, IRA/ Bhalchandra Vaidya, Project Manager Plant Licensing Branch 1-1 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation DISTRIBUTION:
w/o proprietary enclosure via Listserv PUBLIC [cover letter only] LPLl-1 R/F RidsNrrDorlLPL 1-1 RidsNrrLAKGoldstein RidsNrrPMNineMilePoint ADAMS Accession Nos.: Package:
ML 15118A688, C I ML 15105A443 P over etter: ' OFFICE DORL/LPL 1-1 \PM NAME BVaidya DATE 4/29/2015 RidsRgn1 MailCenter RidsAcrsAcnw_MailCTR DSchroder, Region 1 . t D ftSE ML15118A004 roprie ary ra DORL/LPL 1-1\LA DORL/LPL 1-1 /BC (A) KGoldstein MDudek 4/28/2015 5/01/2015 OFFICIAL RECORD COPY DORL/LPL 1-1 /PM BVaidva 5/04/2015 OFFICIAL USE ONLY PROPRIETARY INFORMATION}}

Revision as of 01:52, 1 July 2018

Nine Mile Point Nuclear Station, Unit No. 2 - Draft Safety Evaluation for License Amendment Request - Mellla+ (TAC No. MF3056)
ML15105A443
Person / Time
Site: Nine Mile Point Constellation icon.png
Issue date: 05/04/2015
From: Bhalchandra Vaidya
Plant Licensing Branch 1
To: Orphanos P M
Exelon Generation Co
Vaidya B K, NRR/DORL/LPL1-1, 415-3308
References
TAC MF3056
Download: ML15105A443 (4)
v • d • e


Text

OFFICIAL USE ONLY PROPRIETARY INFORMATION UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20555-0001 Mr. Peter Orphanos Site Vice President Nine Mile Point Nuclear Station, LLC 348 Lake Road Oswego, NY 13126 May 4, 2015

SUBJECT:

NINE MILE POINT NUCLEAR STATION, UNIT 2 -DRAFT SAFETY EVALUATION FOR LICENSE AMENDMENT REQUEST-RE: MAXIMUM EXTENDED LOAD LINE LIMIT PLUS (MELLLA+)

(TAC NO. MF3056)

Dear Mr. Orphanos:

By letter dated November 1, 2013, as supplemented by letters dated January 21, February 14, February 25, March 10, May 14, June 13, December 11, 2014, and February 18, 2015, Nine Mile point Nuclear Station (NMPNS, the licensee) submitted a license amendment request (LAR) to the U.S. Nuclear Regulatory Commission (NRC) requesting changes to the Nine Mile Point Nuclear Station Unit No. 2 (NMP2), Technical Specifications (TSs). The proposed amendment includes changes to the NMP2 TS necessary to: (1) implement the Maximum Extended Load Line Limit Analysis Plus expanded operating domain; (2) change the stability solution to Detect and Suppress Solution

-Confirmation Density; (3) use the TRACG04 analysis code; and (4) increase the Safety Limit Minimum Critical Power Ratio for two recirculation loops in operation.

Enclosed for your review and comment is a copy of the NRC staff's draft safety evaluation (SE) for the LAR. Pursuant to Section 2.390 of Title 10 of the Code of Federal Regulations (10 CFR), we have indicated the proprietary information in the SE by double square brackets, i.e., [[ ]], based on such information in your submittals.

The purpose of this letter is to provide you with the opportunity to comment on the proprietary aspects.

If you believe that any information in the enclosure is not correctly marked with respect to the proprietary nature, or, should have been marked as proprietary information, please identify such information line-by-line, including the source reference and define the basis pursuant to the criteria of 10 CFR 2.390. Also, please provide your comments on any factual errors or clarity concerns contained in the enclosed draft proprietary SE. The final proprietary and proprietary SEs will be issued after making any necessary changes.

The final non-proprietary SE will be made publicly available.

Enclosure transmitted herewith contains Official Use Only -Proprietary Information.

When separated from Enclosure, this document is decontrolled.

OFFICIAL USE ONLY PROPRIETARY INFORMATION OFFICIAL USE ONLY PROPRIETARY INFORMATION P. M. Orphanos To facilitate the NRC staff's review of your comments, please provide a marked-up copy of the draft proprietary SE showing proposed changes & comments, along with a summary table of the proposed changes.

If you have any questions, please contact me at 301-415-3308.

Docket No. 50-410 Enclosure(s):

As stated cc w/encls:

Sincerely, -Bhalchandra Vaidya, Project Manager Plant Licensing Branch 1-1 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation OFFICIAL USE ONLY PROPRIETARY INFORMATION OFFICIAL USE ONLY PROPRIETARY INFORMATION UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20555-0001 ENCLOSURE NINE MILE POINT UNIT 2 DOCKET NO. 50-410 LICENSE AMENDMENT REQUEST RE: MELLLA+ TRANSMITTAL OF AMENDMENT DRAFT SAFETY EVALUATION TO LICENSEE This document contains proprietary information pursuant to Title 1 O of the Code of Federal Regulations Section 2.390. Proprietary information is identified by text enclosed within double brackets

[[ ]]. ADAMS Accession No. ML 15118A004 OFFICIAL USE ONLY PROPRIETARY INFORMATION OFFICIAL USE ONLY PROPRIETARY INFORMATION P. To facilitate the NRC staff's review of your comments, please provide a marked-up copy of the draft proprietary SE showing proposed changes & comments, along with a summary table of the proposed changes.

If you have any questions, please contact me at 301-415-3308.

Docket No. 50-410 Enclosure(s):

As stated Sincerely, IRA/ Bhalchandra Vaidya, Project Manager Plant Licensing Branch 1-1 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation DISTRIBUTION:

w/o proprietary enclosure via Listserv PUBLIC [cover letter only] LPLl-1 R/F RidsNrrDorlLPL 1-1 RidsNrrLAKGoldstein RidsNrrPMNineMilePoint ADAMS Accession Nos.: Package:

ML 15118A688, C I ML 15105A443 P over etter: ' OFFICE DORL/LPL 1-1 \PM NAME BVaidya DATE 4/29/2015 RidsRgn1 MailCenter RidsAcrsAcnw_MailCTR DSchroder, Region 1 . t D ftSE ML15118A004 roprie ary ra DORL/LPL 1-1\LA DORL/LPL 1-1 /BC (A) KGoldstein MDudek 4/28/2015 5/01/2015 OFFICIAL RECORD COPY DORL/LPL 1-1 /PM BVaidva 5/04/2015 OFFICIAL USE ONLY PROPRIETARY INFORMATION

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