ML17087A145

Acceptance of Requested Licensing Action Amendment to Adopt TSTF-542, Revision 2, Reactor Pressure Vessel Water Inventory Control

ML17087A145
Person / Time
Site:	Nine Mile Point
Issue date:	03/31/2017
From:	Marshall M Plant Licensing Branch 1
To:	Bryan Hanson Exelon Nuclear
Marshall M, DORL/LPL1, 415-2871
References
CAC MF9357
Download: ML17087A145 (3)

Text

UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20555-0001 March 31, 2017 Mr. Bryan C. Hanson President and Chief Nuclear Officer Exelon Nuclear 4300 Winfield Road Warrenville, IL 60555

SUBJECT:

NINE MILE POINT NUCLEAR STATION, UNIT 2 -ACCEPTANCE OF REQUESTED LICENSING ACTION RE: AMENDMENT TO ADOPT TSTF-542, REVISION 2, "REACTOR PRESSURE VESSEL WATER INVENTORY CONTROL" (CAC NO. MF9357)

Dear Mr. Hanson:

By letter dated February 28, 2017 (Agencywide Documents Access and Management System (ADAMS) Accession No. ML17059C963), Exelon Generation Company, LLC submitted a license amendment request for the Nine Mile Point Nuclear Station, Unit 2. The proposed amendment would revise the Nine Mile Point Nuclear Station, Unit 2, Technical Specifications to replace existing requirements related to "operations with a potential for draining the reactor vessel" with new requirements on reactor pressure vessel water inventory control to protect Safety Limit 2.1.1.3. Safety Limit 2.1.1.3 requires reactor pressure vessel water level to be greater than the top of active irradiated fuel. The proposed changes are based on Technical Specifications Task Force (TSTF) Traveler TSTF-542, Revision 2, "Reactor Pressure Vessel Water Inventory Control" (ADAMS Accession No. ML16074A448).

The purpose of this letter is to provide the results of the U.S. Nuclear Regulatory Commission (NRC) staff's 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 1O of the Code of Federal Regulations (10 CFR), an amendment to the license (including the technical specifications) 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.

B. Hanson 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. If additional information is needed, you will be advised by separate correspondence.

Based on the information provided in your submittal, the NRC staff has estimated that this licensing request will take approximately 620 hours25.833 days <br />3.69 weeks <br />0.849 months <br /> to complete. The NRC staff expects to complete this review by March 1, 2018 (approximately 11 months). If there are emergent complexities or challenges in our review that would cause changes to the initial forecasted completion date or significant changes in the forecasted hours, the reasons for the changes, along with the new estimates, will be communicated during the routine interactions with the assigned project manager.

These estimates are based on the NRC staff's initial review of the application, and they could change due to several factors, including requests for additional information, unanticipated addition of scope to the review, and review by NRC advisory committees or hearing-related activities. Additional delay may occur if the submittal is provided to the NRC in advance, or in parallel with, industry program initiatives or pilot applications.

If you have any questions, please contact me at (301) 415-2871 or Michael.Marshall@nrc.gov.

Sincerely, Michael L. Marshall, Jr., Senior Project Manager Plant Licensing Branch I Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket No. 50-410 cc: Distribution via Listserv

B. Hanson

SUBJECT:

NINE MILE POINT NUCLEAR STATION, UNIT 2 -ACCEPTANCE OF REQUESTED LICENSING ACTION RE: AMENDMENT TO ADOPT TSTF-542, REVISION 2, "REACTOR PRESSURE VESSEL WATER INVENTORY CONTROL" (CAC NO. MF9357) DATED MARCH 31, 2017 DISTRIBUTION:

Public KGreen, NRR LPL 1 R/F RHaskell, NRR RidsACRS_MailCTR Resource DWarner, NRR RidsNrrDorl Resource RAlvarado, NR RidsNrrDorlLpl1 Resource RGrover, NRR RidsNrrLALRonewicz Resource DWoodyatt, NRR RidsNrrPMNineMilePoint Resource MRazzaque, NRR RidsRgn1 MailCenter Resource SPengh, NRR RidsNrrDssStsb Resource RidsNrrDeEicb Resource RidsNrrDssSrxb Resource ADAMS Accession Number: ML17087A145 OFFICE NRR/DORL/LPL 1/PM NRR/DORL/LPL 1/LA NRR/DORL/LPL 1/BC NAME MMarshall LRonewicz JDanna DATE 03/29/2017 03/29/2017 03/30/2017 OFFICE NRR/DORL/LPL 1/PM NAME MMarshall DATE 03/31/2017 OFFICIAL RECORD COPY