ML16250A145

Summary of Discussion: Hatch'S Low Frequency Evaluation Plans

ML16250A145
Person / Time
Site:	Hatch
Issue date:	06/10/2016
From:	Frankie Vega Japan Lessons-Learned Division
To:	Mohamed Shams Japan Lessons-Learned Division
References
Download: ML16250A145 (2)

Text

1 NRR-PMDAPEm Resource From: Vega, Frankie Sent: Friday, June 10, 2016 9:45 AM To: Shams, Mohamed Cc:Titus, Brett; Manoly, Kamal

Subject:

Summary of discussion: Hatch's Low frequency evaluation plans Hello all,

This email summarizes a discussion between NRC staff and Southern Nuclear representatives regarding the status of Hatch's Low frequency evaluation associated with NTTF 2.1 "Seismic".

Consistent with documentation requirements contained in MD 3.53, "Records and Document Management Program," this email documents the staff's communication by telephone with Southern Nuclear Company (SNC) representatives regarding the status of Hatch's low frequency evaluation.

This discussion supported a forthcoming, formal submittal documenting Hatch's evaluation. The following items were discussed during the telephone discussion with the licensee:

1. SNC representatives provided an overview of the status of Plant Hatch Units 1 and 2 low frequency (LF) investigations/studies and evaluations

2. SNC stated that it relied on insights and analyses from previous and ongoing seismic investigations to screen out low frequency vulnerabilities. SNC stated that it followed the Screening, Prioritization and Implementation Details (SPID) guidance when evaluating low frequency sensitive structures, systems and components.

3. Hatch's low frequency evaluation is well underway and a formal submittal is expected by September 2016.

4. The staff will communicate with SNC prior to the submittal to ensure that sufficient information is provided to support the staff's review.

NRC Attendees: Southern staff Frankie Vega John Giddens Brett Titus Don Moore Kamal Manoly Melany Brown Thanks Frankie G. Vega, P.E.

Project Manager NRR/JLD/JHMB 301-415-1617 Location: O-13H12

Hearing Identifier: NRR_PMDA Email Number: 3038 Mail Envelope Properties (Frankie.Vega@nrc.gov20160610094400)

Subject:

Summary of discussion: Hatch's Low frequency evaluation plans Sent Date: 6/10/2016 9:44:37 AM Received Date: 6/10/2016 9:44:00 AM From: Vega, Frankie Created By: Frankie.Vega@nrc.gov Recipients: "Titus, Brett" <Brett.Titus@nrc.gov>

Tracking Status: None "Manoly, Kamal" <Kamal.Manoly@nrc.gov>

Tracking Status: None "Shams, Mohamed" <Mohamed.Shams@nrc.gov> Tracking Status: None

Post Office: Files Size Date & Time MESSAGE 1633 6/10/2016 9:44:00 AM Options Priority: Standard Return Notification: No Reply Requested: No Sensitivity: Normal Expiration Date: Recipients Received: