ML16053A509

From kanterella
Jump to navigation Jump to search

NRR E-mail Capture - Exelon Fleet - Proposed Alternative to Use Code Case N-513-4 (CAC Nos. MF7301-MF7322)
ML16053A509
Person / Time
Site: Calvert Cliffs, Dresden, Peach Bottom, Nine Mile Point, Oyster Creek, Byron, Braidwood, Limerick, Ginna, Clinton, Quad Cities, LaSalle
Issue date: 02/22/2016
From: Blake Purnell
Plant Licensing Branch III
To: David Gudger
Exelon Generation Co
References
MF7301, MF7302, MF7303, MF7304, MF7305, MF7306, MF7307, MF7308, MF7309, MF7310, MF7311, MF7312, MF7313, MF7314, MF7315
Download: ML16053A509 (3)


Text

1 NRR-PMDAPEm Resource From:

Purnell, Blake Sent:

Monday, February 22, 2016 3:23 PM To:

Gudger, David T:(GenCo-Nuc)

Cc:

Poole, Justin; Loomis, Thomas R:(GenCo-Nuc) (thomas.loomis@exeloncorp.com)

Subject:

Exelon Fleet - Proposed Alternative to Use Code Case N-513-4 (CAC Nos. MF7301-MF7322)

Mr. Gudger:

By application dated January 28, 2016 (ADAMS Accession No. ML16029A003), Exelon Generation Company, LLC (Exelon, the licensee) submitted a request in accordance with Paragraph 50.55a(z)(2) of Title 10 of the Code of Federal Regulations (10 CFR) for a proposed alternative to the requirements of Section XI, Rules for Inservice Inspection of Nuclear Power Plant Components, of the American Society of Mechanical Engineers (ASME) Boiler and Pressure Vessel Code (ASME Code) for the entire Exelon fleet of operating reactors. The proposed alternative would allow the licensee to use ASME Code Case N-513-4, Evaluation Criteria for Temporary Acceptance of Flaws in Moderate Energy Class 2 or 3 Piping Section XI, Division 1, in lieu of specified ASME Code requirements.

The purpose of this email is to provide the results of the U.S. Nuclear Regulatory Commission (NRC) staffs acceptance review of this proposed alternative. 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.

Pursuant to 10 CFR 50.55a(z), the applicant shall demonstrate that the proposed alternatives would provide an acceptable level of quality and safety, or that compliance with the specified requirements of 10 CFR 50.55a would result in hardship or unusual difficulty without a compensating increase in the level of quality or safety.

The NRC staff has reviewed your application and concluded that it provides technical information in sufficient detail to enable the staff to complete its detailed technical review and make an independent assessment regarding the acceptability of the proposed relief request 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 staffs 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 staffs detailed technical review by separate correspondence.

Sincerely, Blake Purnell, Project Manager Plant Licensing Branch III-2 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation U.S. Nuclear Regulatory Commission Docket Nos. STN 50-456, STN 50-457, STN 50-454, STN 50-455 50-317, 50-318, 50-461, 50-237, 50-249, 50-373, 50-374, 50-352, 50-353, 50-220, 50-410, 50-219, 50-277, 50-278, 50-254, 50-265, 50-244, and 50-289

2

Hearing Identifier:

NRR_PMDA Email Number:

2670 Mail Envelope Properties (Blake.Purnell@nrc.gov20160222152200)

Subject:

Exelon Fleet - Proposed Alternative to Use Code Case N-513-4 (CAC Nos.

MF7301-MF7322)

Sent Date:

2/22/2016 3:22:45 PM Received Date:

2/22/2016 3:22:00 PM From:

Purnell, Blake Created By:

Blake.Purnell@nrc.gov Recipients:

"Poole, Justin" <Justin.Poole@nrc.gov>

Tracking Status: None "Loomis, Thomas R:(GenCo-Nuc) (thomas.loomis@exeloncorp.com)" <thomas.loomis@exeloncorp.com>

Tracking Status: None "Gudger, David T:(GenCo-Nuc)" <David.Gudger@exeloncorp.com>

Tracking Status: None Post Office:

Files Size Date & Time MESSAGE 2895 2/22/2016 3:22:00 PM Options Priority:

Standard Return Notification:

No Reply Requested:

No Sensitivity:

Normal Expiration Date:

Recipients Received:

1 NRR-PMDAPEm Resource From:

Purnell, Blake Sent:

Monday, February 22, 2016 3:23 PM To:

Gudger, David T:(GenCo-Nuc)

Cc:

Poole, Justin; Loomis, Thomas R:(GenCo-Nuc) (thomas.loomis@exeloncorp.com)

Subject:

Exelon Fleet - Proposed Alternative to Use Code Case N-513-4 (CAC Nos. MF7301-MF7322)

Mr. Gudger:

By application dated January 28, 2016 (ADAMS Accession No. ML16029A003), Exelon Generation Company, LLC (Exelon, the licensee) submitted a request in accordance with Paragraph 50.55a(z)(2) of Title 10 of the Code of Federal Regulations (10 CFR) for a proposed alternative to the requirements of Section XI, Rules for Inservice Inspection of Nuclear Power Plant Components, of the American Society of Mechanical Engineers (ASME) Boiler and Pressure Vessel Code (ASME Code) for the entire Exelon fleet of operating reactors. The proposed alternative would allow the licensee to use ASME Code Case N-513-4, Evaluation Criteria for Temporary Acceptance of Flaws in Moderate Energy Class 2 or 3 Piping Section XI, Division 1, in lieu of specified ASME Code requirements.

The purpose of this email is to provide the results of the U.S. Nuclear Regulatory Commission (NRC) staffs acceptance review of this proposed alternative. 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.

Pursuant to 10 CFR 50.55a(z), the applicant shall demonstrate that the proposed alternatives would provide an acceptable level of quality and safety, or that compliance with the specified requirements of 10 CFR 50.55a would result in hardship or unusual difficulty without a compensating increase in the level of quality or safety.

The NRC staff has reviewed your application and concluded that it provides technical information in sufficient detail to enable the staff to complete its detailed technical review and make an independent assessment regarding the acceptability of the proposed relief request 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 staffs 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 staffs detailed technical review by separate correspondence.

Sincerely, Blake Purnell, Project Manager Plant Licensing Branch III-2 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation U.S. Nuclear Regulatory Commission Docket Nos. STN 50-456, STN 50-457, STN 50-454, STN 50-455 50-317, 50-318, 50-461, 50-237, 50-249, 50-373, 50-374, 50-352, 50-353, 50-220, 50-410, 50-219, 50-277, 50-278, 50-254, 50-265, 50-244, and 50-289

2

Hearing Identifier:

NRR_PMDA Email Number:

2670 Mail Envelope Properties (Blake.Purnell@nrc.gov20160222152200)

Subject:

Exelon Fleet - Proposed Alternative to Use Code Case N-513-4 (CAC Nos.

MF7301-MF7322)

Sent Date:

2/22/2016 3:22:45 PM Received Date:

2/22/2016 3:22:00 PM From:

Purnell, Blake Created By:

Blake.Purnell@nrc.gov Recipients:

"Poole, Justin" <Justin.Poole@nrc.gov>

Tracking Status: None "Loomis, Thomas R:(GenCo-Nuc) (thomas.loomis@exeloncorp.com)" <thomas.loomis@exeloncorp.com>

Tracking Status: None "Gudger, David T:(GenCo-Nuc)" <David.Gudger@exeloncorp.com>

Tracking Status: None Post Office:

Files Size Date & Time MESSAGE 2895 2/22/2016 3:22:00 PM Options Priority:

Standard Return Notification:

No Reply Requested:

No Sensitivity:

Normal Expiration Date:

Recipients Received: