ML19016A213

Alternative December 20, 2018 E-Mail

ML19016A213
Person / Time
Site:	Hatch
Issue date:	12/20/2018
From:	Joyce R M Southern Nuclear Operating Co
To:	Alley D W, Hall J R, Joel Jenkins NRC/NRR/DMLR/MVIB, Plant Licensing Branch II
Hall J R, NRR/DORL/LPL2-1, 415-4032
References
EPID L-2018-LLR-0099
Download: ML19016A213 (2)

Text

From: Joyce, Ryan M.

To: Hall, Randy

Alley, David

Jenkins, Joel Cc

Do, Hien Q.

Pournaras, DeLisa S.

Rice, Jordan Lynnette

Wells, Tim G.

Coleman, Jamie Marquess

Subject:

[External_Sender] RE: Hatch 1&2 Alternative for use of BWRVIP Guidelines - Supporting Information Date: Thursday, December 20, 2018 6:41:40 PM Structural Integrity document number 1500880.303 was completed in January 2016 and was used in the 1R27 flaw and leakage evaluation to update the inspection interval.

Based on this document, three cycles of operation from 2014 for the core shroud horizontal and vertical welds examinations are acceptable.

This evaluation will be updated in 2020 based on UT results, and will likely result in a 10 year interval.

It has been determined that this document contains EPRI-proprietary information.

EPRI is preparing an affidavit, and is aiming to have this affidavit signed by Friday, January 4.

SNC will formally transmit this SI document to the NRC shortly after the affidavit is received by EPRI.

Per our discussion on December 20, 2018, SNC will adhere to the future inspection interval as determined by inspection results and flaw/leakage evaluation(s), which will be in accordance with BWRVIP Inspection and Evaluation Guidelines.

If it is determined that an exception to BWRVIP guidance is necessary, a technical justification will be performed and reported to both the BWRVIP and NRC per the requirements of the BWRVIP Inspection and Evaluation Guidelines.

From: Hall, Randy <Randy.Hall@nrc.gov>

Sent: Thursday, December 20, 2018 10:43 AM To: Joyce, Ryan M. <RMJOYCE@southernco.com>

Cc: Alley, David <David.Alley@nrc.gov>; Jenkins, Joel <Joel.Jenkins@nrc.gov>

Subject:

Hatch 1&2 Alternative for use of BWRVIP Guidelines - Supporting Information EXTERNAL MAIL: Caution Opening Links or Files Ryan, As agreed during our conference call this morning, SNC will provide an email confirming that you will follow the BWRVIP guidelines for flaw evaluation for components within the scope of Alternative request HNP-ISI-ALT-05-04, and that the re-inspection frequencies for previously identified flaws will be determined consistent with and bounded by the results of those evaluations.

Also, you will send us a copy of the Structural Integrity Associates 2016 Evaluation Report upon determining it is non-proprietary.

Please copy Dave Alley and Joel Jenkins on your email, they are cc'ed above. Thanks, Randy Randy Hall, Senior Project Manager Plant Licensing Branch II-1 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation USNRC (301) 415-4032 Randy.Hall@nrc.gov