ML18193A974

NRR E-mail Capture - Acceptance for Review of Application - License Amendment Request to Remove Operating Mode Restrictions for Performing Surveillance Testing of the Div. 3 Battery and HPCS Dg. (EPID-L-2018-LLA-0162)

ML18193A974
Person / Time
Site:	LaSalle
Issue date:	07/12/2018
From:	Bhalchandra Vaidya Plant Licensing Branch III
To:	Sprengel R Exelon Corp
References
L-2018-LLA-0162
Download: ML18193A974 (4)

Text

NRR-DMPSPEm Resource From: Vaidya, Bhalchandra Sent: Thursday, July 12, 2018 9:50 AM To: Sprengel, Ryan:(GenCo-Nuc); david.gullott@exeloncorp.com Cc: Wrona, David

Subject:

ACCEPTANCE FOR REVIEW OF APPLICATION - License Amendment Request to Remove Operating Mode Restrictions for Performing Surveillance Testing of the Div. 3 Battery and HPCS DG. (EPID-L-2018-LLA-0162)

SUBJECT:

LaSalle County Station, Units 1 and 2, Renewed Facility Operating License Nos. NPF-11 and NPF-18, NRC Docket Nos. 50-373 and 50-374, ACCEPTANCE REVIEW FOR LaSalle County Station, Units 1 & 2 - License Amendment Request to Remove Operating Mode Restrictions for Performing Surveillance Testing of the Division 3 Battery and High Pressure Core Spray Diesel Generator.

Dear Ryan and David:

By letter dated April 19, 2018 (ADAMS Accession No. ML18157A123), Exelon Generation Company, LLC (EGC) submitted an amendment to Renewed Facility Operating License Nos. NPF-11 and NPF-18 for LaSalle County Station (LSCS), Units 1 and 2, respectively.

The proposed amendments are as follows:

• The proposed amendments Would revise Technical Specifications (TS) 3.8.4, "DC Sources-Operating," and TS 3.8.6, "Battery Parameters," by removing the Mode restrictions for performance of TS Surveillance Requirements (SR) 3.8.4.3 and SR 3.8.6.6 for the Division 3 direct current (DC) electrical power subsystem battery. The Division 3 DC electrical power subsystem feeds emergency DC loads associated with the High Pressure Core Spray (HPCS) system. SR 3.8.4.3 verifies that the battery capacity is adequate for the battery to perform its required functions. SR 3.8.6.6 verifies battery capacity is ~ 80% of the manufacturer's rating when subjected to a performance discharge test (or a modified performance discharge test). The proposed amendments would remove these Mode restrictions for the Division 3 battery, allowing performance of SR 3.8.4.3 and SR 3.8.6.6 for the Division 3 battery during Mode 1 or 2, potentially minimizing impact on HPCS unavailability. Eliminating the requirement to perform SR 3.8.4.3 and SR 3.8.6.6 only during Mode 3, 4, or 5 (hot shutdown, cold shutdown, or refueling conditions) will provide greater flexibility in scheduling Division 3 battery testing activities by allowing the testing to be performed during non-outage times.

• The proposed amendments would revise TS 3.8.1, "AC Sources-Operating," by revising certain SRs pertaining to the Division 3 HPCS diesel generator (DG). The Division 3 DG is an independent source of onsite alternating current (AC) power dedicated to the HPCS system. The TSs currently prohibit performing the testing required by SR 3.8.1.9, SR 3.8.1.10, SR 3.8.1.11, SR 3.8.1.12, SR 3.8.1.13, SR 3.8.16, SR 3.8.1.17, and SR 3.8.1.19 in Modes 1 or 2. The proposed amendments would remove these Mode restrictions and allow all eight of the identified SRs to be performed in any operating Mode for the Division 3 DG.

The purpose of this letter is to provide the results of the U.S. Nuclear Regulatory Commission (NRC) staffs acceptance review of the proposed license 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 technical specifications) must fully describe the changes requested, and following as far as applicable, the 1

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.

2

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 staffs 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 350 hours14.583 days <br />2.083 weeks <br />0.479 months <br /> to complete. The NRC staff expects to complete this review by the requested date of April 19, 2019. 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 staffs 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) 415-3308.

Docket Nos. 50-373 and 50-374 Bhalchandra K. Vaidya Licensing Project Manager NRC/NRR/DORL/LPL3 (301)-415-3308 (O) bhalchandra.vaidya@nrc.gov 3

Hearing Identifier: NRR_DMPS Email Number: 466 Mail Envelope Properties (BN7PR09MB264292C060E0C823576C10248D590)

Subject:

ACCEPTANCE FOR REVIEW OF APPLICATION - License Amendment Request to Remove Operating Mode Restrictions for Performing Surveillance Testing of the Div. 3 Battery and HPCS DG. (EPID-L-2018-LLA-0162)

Sent Date: 7/12/2018 9:50:14 AM Received Date: 7/12/2018 9:50:00 AM From: Vaidya, Bhalchandra Created By: Bhalchandra.Vaidya@nrc.gov Recipients:

"Wrona, David" <David.Wrona@nrc.gov>

Tracking Status: None "Sprengel, Ryan:(GenCo-Nuc)" <Ryan.Sprengel@exeloncorp.com>

Tracking Status: None "david.gullott@exeloncorp.com" <david.gullott@exeloncorp.com>

Tracking Status: None Post Office: BN7PR09MB2642.namprd09.prod.outlook.com Files Size Date & Time MESSAGE 5753 7/12/2018 9:50:00 AM Options Priority: Standard Return Notification: No Reply Requested: No Sensitivity: Normal Expiration Date:

Recipients Received: