ML11174A260

NRR E-mail Capture - Braidwood / Byron Stations - Acceptance Review of Relief Requests I3R-09 and I3R20, Alternatives to the ASME Code Requirements for Repairs to Reactor Vessel Head Penetrations

ML11174A260
Person / Time
Site:	Byron, Braidwood
Issue date:	06/22/2011
From:	Nicholas Difrancesco Division of Operating Reactor Licensing
To:	Schofield L Exelon Corp
References
Download: ML11174A260 (2)

Text

NRR-PMDAPEm Resource From: DiFrancesco, Nicholas Sent: Wednesday, June 22, 2011 3:19 PM To: Lisa.Schofield@exeloncorp.com Cc: jeff.hansen@exeloncorp.com; Richard.McIntosh@exeloncorp.com; Zimmerman, Jacob; Lingam, Siva; Boyle, Patrick

Subject:

Braidwood / Byron Stations - Acceptance Review of Relief Requests I3R-09 and I3R20, Alternatives to the ASME Code Requirements for Repairs to Reactor Vessel Head Penetrations (TAC Nos. ME6071, ME6072, ME6073, and ME6074)

Ms. Schofield, By letter dated April 19, 2011 (Agencywide Documents Access and Management System (ADAMS) Accession No. ML111100620), Exelon Generation Company, LLC (EGC, the licensee) submitted relief requests I3R-09 and I3R20 for use of alternative requirements to the ASME Code requirements for repairs to reactor vessel head penetrations for Braidwood Station, Units 1 and 2, and Byron Station, Unit Nos. 1 and 2. The purpose of this letter is to provide the results of the U.S. Nuclear Regulatory Commission (NRC) staffs acceptance review of this relief 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.

Pursuant to Sections 50.55a(a)(3)(i) and 50.55a(a)(3)(ii) of Title 10 of the Code of Federal Regulations, 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 Section 50.55a would result in hardship or unusual difficulty without a compensating increase in the level of quality or safety.

By letter dated June 6, 2011 (ADAMS Accession No. ML111330653), the NRC staff notified EGC of specific supplemental information that needed to be submitted to enable the staff to begin its detailed technical review.

By letter dated June 14, 2011 (ADAMS Accession No. ML111650286), EGC provided supplemental information.

The NRC staff has reviewed the supplemental information and concluded that it does provide technical information in sufficient detail to enable the staff to proceed with 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. If additional information is needed for the NRC staff to complete its technical review, you will be advised by separate correspondence.

In accordance with our process as described in LIC-109, "Acceptance Review Procedures," I am placing a copy of this email in ADAMS as a publicly-available, official agency record.

Sincerely, Nicholas DiFrancesco Project Manager - Braidwood, Byron, and Clinton U.S. Nuclear Regulatory Commission Office of Nuclear Reactor Regulation Division of Operating Reactor Licensing nicholas.difrancesco@nrc.gov l Tel: (301) 415-1115 1

Hearing Identifier: NRR_PMDA Email Number: 81 Mail Envelope Properties (0046140293E11F408991442DB4FE25CA63082303D7)

Subject:

Braidwood / Byron Stations - Acceptance Review of Relief Requests I3R-09 and I3R20, Alternatives to the ASME Code Requirements for Repairs to Reactor Vessel Head Penetrations (TAC Nos. ME6071, ME6072, ME6073, and ME6074)

Sent Date: 6/22/2011 3:19:20 PM Received Date: 6/22/2011 3:19:22 PM From: DiFrancesco, Nicholas Created By: Nicholas.DiFrancesco@nrc.gov Recipients:

"jeff.hansen@exeloncorp.com" <jeff.hansen@exeloncorp.com>

Tracking Status: None "Richard.McIntosh@exeloncorp.com" <Richard.McIntosh@exeloncorp.com>

Tracking Status: None "Zimmerman, Jacob" <Jacob.Zimmerman@nrc.gov>

Tracking Status: None "Lingam, Siva" <Siva.Lingam@nrc.gov>

Tracking Status: None "Boyle, Patrick" <Patrick.Boyle@nrc.gov>

Tracking Status: None "Lisa.Schofield@exeloncorp.com" <Lisa.Schofield@exeloncorp.com>

Tracking Status: None Post Office: HQCLSTR01.nrc.gov Files Size Date & Time MESSAGE 2791 6/22/2011 3:19:22 PM Options Priority: Standard Return Notification: No Reply Requested: No Sensitivity: Normal Expiration Date:

Recipients Received: