ML082250516

Summary of Conference Call with Nuclear Energy Institute/Industry to Discuss Carl Stepp'S White Paper on Guidance for Updating Existing Seismic Source Models

ML082250516
Person / Time
Issue date:	08/12/2008
From:	Subbaratnam R NRC/NRO/DNRL
To:	Bell R, Choksi N, Earls C, Sergio Gonzalez, Joshi R, Rebecca Karas, Clifford Munson, William Reckley, Dogan Seber Office of New Reactors, Nuclear Energy Institute
Subbaratam R. 301-415-1478, NGRA/DNRL
Shared Package
ML082250478	List: ML082250516
References
FOIA/PA-2009-0035
Download: ML082250516 (2)

Text

From: Ram Subbaratnam Sent: Tuesday, August 12, 2008 2:07 PM To: Nilesh Chokshi; Rebecca Karas; Clifford Munson; Sarah Gonzalez; Ravindra Joshi; Dogan Seber; EARLS, Chris; lck@nei.org; BELL, Russ; kak@nei.org; Cstepp@moment.net Cc: William Reckley; Sujit Samaddar; Goutam Bagchi

Subject:

Summary of Conference Call with NEI/Industry on July 28, 2008 to discuss Carl Stepp's White Paper Attachments: STEPP_comments_v6.doc MEMORANDUM TO: File FROM: Ram Subbaratnam, Project Manager, NRCA/DNRL Office of New Reactors, Division of New Reactor Licensing

SUBJECT:

Summary of Conference Call with NEI/Industry on July 28, 2008 to discuss Carl Stepp's White Paper on Guidance for Updating Existing Seismic Source Models The purpose of the call was to discuss initial staff findings on the Carl Stepp's White Paper and suggest areas where the paper needed additional work by the industry for staff's continued consideration.

Staff Seismologist Dogan Seber provided some preliminary insight on the EPRI's White Paper as outlined below and also shown in some details in the attachment to the e-mail.

• Staffs concerns in using a minimum of 20% change requirement in mean hazard curves before an update is implemented,

• Consideration of the reference criteria from generic-rock only to generic-rock and soil-site dual criteria,

• Clarification of the proposed procedure for updating accepted seismic source models,

• Acceptance conditions for updated models with broad scientific support,

• Screening criteria for updates resulting from non SSHAC Level II studies, and

• Need to develop a scenario for subsequent future uses of approved updates The NRC attendees were:

• Nilesh Chokshi

• Dorgan Seber

• Rebecca Karas

• Sara Gonzalez

• Ravi Joshi

• Ram Subbaratnam Other observers:

• Russ Bell, NEI

• Leslie Kass, NEI

• Chris Earls, NEI

• Jeff Munsey, TVA

• Robert Horton, SCE

• Carl Stepp, Consultant

• Robert Kennedy, Consultant

• Don Moore, Southern

• et. al.

If You need any further information or assistance on this meeting summary please call me on (301) 415 1478 or e-Mail rxs2@nrc.gov.

Thank you.

Ram Subbaratnam Project Manager, NRCA/DNRL/NRO US NRC (301) 415 1478 E-mail Properties Mail Envelope Properties ()

Subject:

Summary of Conference Call with NEI/Industry on July 28, 2008 to discuss Carl Stepp's White Paper Sent Date: 8/12/2008 8:59:06 AM Received Date: 8/12/2008 2:06:00 PM From: Ram Subbaratnam Created By: Ram.Subbaratnam@nrc.gov Recipients:

Nilesh.Chokshi@nrc.gov (Nilesh Chokshi)

Tracking Status: None Rebecca.Karas@nrc.gov (Rebecca Karas)

Tracking Status: None Clifford.Munson@nrc.gov (Clifford Munson)

Tracking Status: None Sarah.Gonzalez@nrc.gov (Sarah Gonzalez)

Tracking Status: None Ravindra.Joshi@nrc.gov (Ravindra Joshi)

Tracking Status: None Dogan.Seber@nrc.gov (Dogan Seber)

Tracking Status: None cee@nei.org (EARLS, Chris)

Tracking Status: None

lck@nei.org (lck@nei.org)

Tracking Status: None rjb@nei.org (BELL, Russ)

Tracking Status: None kak@nei.org (kak@nei.org)

Tracking Status: None Cstepp@moment.net (Cstepp@moment.net)

Tracking Status: None William.Reckley@nrc.gov (William Reckley)

Tracking Status: None Sujit.Samaddar@nrc.gov (Sujit Samaddar)

Tracking Status: None Goutam.Bagchi@nrc.gov (Goutam Bagchi)

Tracking Status: None Post Office:

Files Size Date & Time MESSAGE 59678 8/12/2008 STEPP_comments_v6.doc 38058 Options Expiration Date:

Priority: olImportanceNormal ReplyRequested: True Return Notification: False Sensitivity: olNormal Recipients received: