ML18002A457

NRR E-mail Capture - (External_Sender) (External) Dresden Nuclear Power Station, Units 2 and 3 - RAIs to Support Request to Revise TS 5.5.12 Primary Containment Leakage Rate Testing Program

ML18002A457
Person / Time
Site:	Dresden
Issue date:	12/22/2017
From:	Mathews M Exelon Corp
To:	Haskell R Plant Licensing Branch III
References
L-2017-LLA-0228
Download: ML18002A457 (3)

Text

NRR-DMPSPEm Resource From: Mathews, Mitchel A:(GenCo-Nuc) <Mitchel.Mathews@exeloncorp.com>

Sent: Friday, December 22, 2017 4:36 PM To: Haskell, Russell

Subject:

[External_Sender] Re: [EXTERNAL] RESEND: Re: [EXTERNAL] Dresden Nuclear Power Station, Units 2 and 3 - RAIs to Support Request to Revise TS 5.5.12 "Primary Containment Leakage Rate Testing Program" (EPID: L-2017-LLA-0228)

No problem. Merry Christmas to you and yours!

Get Outlook for Android From: Haskell, Russell Sent: Friday, December 22, 2017 3:16:25 PM To: Mathews, Mitchel A:(GenCo-Nuc)

Subject:

[EXTERNAL] RESEND: Re: [EXTERNAL] Dresden Nuclear Power Station, Units 2 and 3 - RAIs to Support Request to Revise TS 5.5.12 "Primary Containment Leakage Rate Testing Program" (EPID: L-2017-LLA-0228)

Mitch, I apologize, I may have go this mixed up with another action. Please see revised message:

Dear Mr. Mathews,

By letter dated May 3, 2017, (Agencywide Documents Access and Management System (ADAMS) Accession No. ML17123A104), Exelon Generation Company, LLC (EGC, the licensee) submitted a license amendment request for Dresden Nuclear Power Station, Units 2 and 3 (DNPS). The amendment proposes to revise existing DNPS Technical Specification (TS) 5.5.12, "Primary Containment Leakage Rate Testing Program," to allow for the permanent extension of the Type A Integrated Leak Rate Testing (ILRT) and Type C Leak Rate Testing frequencies.

On December 8, 2017, the NRC provided EGC with a DRAFT set of RAIs regarding the ILRT extension request. On December 20, 2017, EGC and support personnel held a teleconference with NRC staff to clarify several of these RAIs.

Based on the teleconference:

PRA-RAI-7.a - Class II Decay Heat Removal - DELETED PRA-RAI-7.b - Class II Decay Heat Removal - DELETED PRA-RAI Frequency of EPRI Category 3b - DELETED PRA-RAI-9.a - Overall Baseline LERF Risk Assessment - Uncertainty - REVISED (see attached)*

The attached RAIs are determined to be final. As such, and as discussed during the call with you, the NRC staff is requesting EGCs response to these RAIs by February 14, 2018.

If you have any questions, please contact me at (301) 415-1129 or by email at Russell.Haskell@nrc.gov.

Sincerely, Russell S. Haskell II United States Nuclear Regulatory Commission (NRC)

Licensing Project Manager - NRR/DORL/LPL 3 Dresden Nuclear Power Station, Units 2 and 3 Russell.Haskell@NRC.Gov; (301) 415-1129; Office: O-8C01; Mail-Stop O-8B1A From: Mathews, Mitchel A:(GenCo-Nuc) [1]

Sent: Friday, December 22, 2017 3:42 PM To: Haskell, Russell 1

Subject:

[External_Sender] Re: [EXTERNAL] Dresden Nuclear Power Station, Units 2 and 3 - RAIs to Support Request to Revise TS 5.5.12 "Primary Containment Leakage Rate Testing Program" (EPID: L-2017-LLR-0228)

Russ, I think we agreed to February 14th for the response, right?

Regards, Mitch Get Outlook for Android From: Haskell, Russell <Russell.Haskell@nrc.gov>

Sent: Friday, December 22, 2017 2:08:53 PM To: Mathews, Mitchel A:(GenCo-Nuc)

Subject:

[EXTERNAL] Dresden Nuclear Power Station, Units 2 and 3 - RAIs to Support Request to Revise TS 5.5.12 "Primary Containment Leakage Rate Testing Program" (EPID: L-2017-LLR-0228)

Dear Mr. Mathews,

By letter dated May 3, 2017, (Agencywide Documents Access and Management System (ADAMS) Accession No. ML17123A104), Exelon Generation Company, LLC (EGC, the licensee) submitted a license amendment request for Dresden Nuclear Power Station, Units 2 and 3 (DNPS). The amendment proposes to revise existing DNPS Technical Specification (TS) 5.5.12, "Primary Containment Leakage Rate Testing Program," to allow for the permanent extension of the Type A Integrated Leak Rate Testing (ILRT) and Type C Leak Rate Testing frequencies.

On December 8, 2017, the NRC provided EGC with a DRAFT set of RAIs regarding the ILRT extension request. On December 20, 2017, EGC and support personnel held a teleconference with NRC staff to clarify several of these RAIs.

Based on the teleconference:

PRA-RAI-7.a - Class II Decay Heat Removal - DELETED PRA-RAI-7.b - Class II Decay Heat Removal - DELETED PRA-RAI Frequency of EPRI Category 3b - DELETED PRA-RAI-9.a - Overall Baseline LERF Risk Assessment - Uncertainty - REVISED (see attached)*

The attached RAIs are determined to be final. As such, and as discussed during the call with you, the NRC staff is requesting EGCs response to these RAIs by January 19, 2018.

If you have any questions, please contact me at (301) 415-1129 or by email at Russell.Haskell@nrc.gov.

Sincerely, Russell S. Haskell II United States Nuclear Regulatory Commission (NRC)

Licensing Project Manager - NRR/DORL/LPL 3 Dresden Nuclear Power Station, Units 2 and 3 Russell.Haskell@NRC.Gov; (301) 415-1129; Office: O-8C01; Mail-Stop O-8B1A This Email message and any attachment may contain information that is proprietary, legally privileged, confidential and/or subject to copyright belonging to Exelon Corporation or its affiliates ("Exelon"). This Email is intended solely for the use of the person(s) to which it is addressed. If you are not an intended recipient, or the employee or agent responsible for delivery of this Email to the intended recipient(s), you are hereby notified that any dissemination, distribution or copying of this Email is strictly prohibited. If you have received this message in error, please immediately notify the sender and permanently delete this Email and any copies.

Exelon policies expressly prohibit employees from making defamatory or offensive statements and infringing any copyright or any other legal right by Email communication. Exelon will not accept any liability in respect of such communications. -EXCIP 2

Hearing Identifier: NRR_DMPS Email Number: 73 Mail Envelope Properties (CO2PR0501MB8388926F1836ED688748FD783020)

Subject:

[External_Sender] Re: [EXTERNAL] RESEND: Re: [EXTERNAL] Dresden Nuclear Power Station, Units 2 and 3 - RAIs to Support Request to Revise TS 5.5.12 "Primary Containment Leakage Rate Testing Program" (EPID: L-2017-LLA-0228)

Sent Date: 12/22/2017 4:35:44 PM Received Date: 12/22/2017 4:35:53 PM From: Mathews, Mitchel A:(GenCo-Nuc)

Created By: Mitchel.Mathews@exeloncorp.com Recipients:

"Haskell, Russell" <Russell.Haskell@nrc.gov>

Tracking Status: None Post Office: CO2PR0501MB838.namprd05.prod.outlook.com Files Size Date & Time MESSAGE 5767 12/22/2017 4:35:53 PM Options Priority: Standard Return Notification: No Reply Requested: No Sensitivity: Normal Expiration Date:

Recipients Received: