ML11294A284

Lr - FW: Davis-Besse Embankment RAI

ML11294A284
Person / Time
Site:	Davis Besse
Issue date:	10/05/2011
From:	Office of Nuclear Reactor Regulation
To:	Division of License Renewal
References
Download: ML11294A284 (3)

Text

Davis-BesseNPEm Resource From: CuadradoDeJesus, Samuel Sent: Wednesday, October 05, 2011 5:44 PM To: custerc@firstenergycorp.com; dorts@firstenergycorp.com Cc: Davis-BesseHearingFile Resource

Subject:

FW: Davis-Besse Embankment RAI Attachments: DB Structural Follow-up RAIs - Lehman 9-23-11.docx Cliff:

Attached is a draft of the follow-up to RAI 4.1-2.

1

Hearing Identifier: Davis_BesseLicenseRenewal_Saf_NonPublic Email Number: 1808 Mail Envelope Properties (377CB97DD54F0F4FAAC7E9FD88BCA6D0806D2307E9)

Subject:

FW: Davis-Besse Embankment RAI Sent Date: 10/5/2011 5:44:25 PM Received Date: 10/5/2011 5:45:01 PM From: CuadradoDeJesus, Samuel Created By: Samuel.CuadradoDeJesus@nrc.gov Recipients:

"Davis-BesseHearingFile Resource" <Davis-BesseHearingFile.Resource@nrc.gov>

Tracking Status: None "custerc@firstenergycorp.com" <custerc@firstenergycorp.com>

Tracking Status: None "dorts@firstenergycorp.com" <dorts@firstenergycorp.com>

Tracking Status: None Post Office: HQCLSTR01.nrc.gov Files Size Date & Time MESSAGE 80 10/5/2011 5:45:01 PM DB Structural Follow-up RAIs - Lehman 9-23-11.docx 35859 Options Priority: Standard Return Notification: No Reply Requested: No Sensitivity: Normal Expiration Date:

Recipients Received:

Davis-Besse Structures Monitoring (SMP) Follow-up RAIs Draft RAI B.2.40-3 (Follow-Up to RAI B.2.40-2)

Background:

By letter dated August 17, 2011, the applicant responded to a staff RAI regarding operating experience with degradation of the north embankment of the safety-related portion of the intake canal. In the response the applicant committed to ensure that an investigation of the embankment degradation would be completed prior to the period of extended operation. The further committed to evaluate the results and complete needed repairs or modifications of the embankment prior to the period of extended operation.

Issue:

Although the applicant committed to completing long-term evaluation plans, no information was provided about the plan, such as schedule, scope, or acceptance criteria.

Request:

Provide details about the embankment investigation. The response should include scheduling information, activities planned and completed to date, and probable corrective actions. The response should provide technical justification for the timeliness of the corrective actions, including an explanation why prior to the period of extended operation is an acceptable deadline for repairs.