ML111520502

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Acceptance of Request for License Amendment to Technical Specifications Section 3.7.3 Ultimate Heat Sink
ML111520502
Person / Time
Site: LaSalle  Constellation icon.png
Issue date: 06/08/2011
From: Billoch-Colon A
Plant Licensing Branch III
To: Wozniak D
Exelon Nuclear
Billoch-Colon A, NRR/DORL, 301-415-3302
References
TAC ME6176, TAC ME6177
Download: ML111520502 (3)


Text

UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20555-0001 June 8, 2011 Mr. David Rhoades LaSalle Site Vice President Exelon Nuclear LaSalle County Station 2601 North 21st Road Marseilles, IL 61341-9757

SUBJECT:

LASALLE COUNTY STATION UNITS 1 AND 2 -ACCEPTANCE OF REQUEST FOR A LICENSE AMENDMENT TO TECHICAL SPECIFICATIONS SECTION 3.7.3, "ULTIMATE HEAT SINK" (TAC. NO. ME6176 AND ME6177)

Dear Mr. Wozniak:

By letter dated May 6, 2011 (Agencywide Documents Access and Management System (ADAMS) Accession No. ML111290197), Exelon Generation Company, LLC, submitted a license amendment for LaSalle County Station, Units 1 and 2. The proposed amendment would revise Technical Specification (TS) 3.7.3, "Ultimate Heat Sink," to reduce the allowed sedimentation in the core standby cooling system (CSCS) pond from 5;; 1.5 feet to 5;; 1.0 feet, which allows the temperature of the cooling water supplied to the plant to be increased from 5;; 101.25 of to 5;; 101.95 of resulting in a higher volume of cooling water available in the CSCS pond.

The purpose of this letter is to provide the results of the U.S. Nuclear Regulatory Commission (NRC) staff acceptance review of this amendment request. The acceptance review was performed to determine if there is sufficient technical information in scope and depth to allow the NRC staff to complete its detailed technical review. The acceptance review is also intended to identify whether the application has any readily apparent information insufficiencies in its characterization of the regulatory requirements or the licensing basis of the plant.

Consistent with Section 50.90 of Title 10 of the Code of Federal Regulations (10 CFR), an amendment to the license (including the TS) must fully describe the changes requested, and following as far as applicable, the form prescribed for original applications. Section 50.34 of 10 CFR addresses the content of technical information required. This section stipulates that the submittal address the design and operating characteristics, unusual or novel design features, and principal safety considerations.

The NRC staff has reviewed your application and concluded that it does provide technical information in sufficient detail to enable the NRC staff to complete its detailed technical review and make an independent assessment regarding the acceptability of the proposed amendment in terms of regulatory requirements and the protection of public health and safety and the environment. Given the lesser scope and depth of the acceptance review, as compared to the detailed technical review, there may be instances in which issues that impact the NRC staff's ability to complete the detailed technical review are identified despite completion of an adequate acceptance review. You will be advised of any further information needed to support the NRC staff's detailed technical review by separate correspondence.

D. Rhoades

- 2 If you have any questions, please contact the LaSalle County Station Project Manager, Araceli T. Billoch Colon, at (301) 415-3302.

Sincerely, Araceli T. Billoch Colon, Project Manager Plant Licensing Branch 111-2 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket No. 50-373 50-374 cc: Distribution via Listserv

D. Rhoades

- 2 If you have any questions, please contact the LaSalle County Station Project Manager, Araceli T. Billoch Colon, at (301) 415-3302.

Sincerely, IRA!

Araceli T. Billoch Colon, Project Manager Plant Licensing Branch 111-2 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket No. 50-373 50-374 cc: Distribution via Listserv DISTRIBUTION:

PUBLIC LPL3-2 r/f RidsAcrsAcnw_MailCTR Resource RidsNrrDorl Resource RidsNrrDoriDpr Resource RidsNrrDorlLpl3-2 Resource RidsNrrLASRohrer Resource RidsNrrPMLaSalie Resource RidsOgcRp Resource RidsRgn3MailCenter Resource JZimmerman, NRR ADAMS Accession No. ML111520502 NRR-028 OFFICE DORULPL3-2/PM DORULPL3-2/LA DORULPL3-2/BC NAME ABiliochColon SRohrer JZimmerman DATE 6/8/11 6/8/11 6/8/11 OFFICIAL RECORD COpy