ML13052A789

Agenda FERC Meeting with NRC Personnel

ML13052A789
Person / Time
Site:	Oconee
Issue date:	02/06/2013
From:	Office of Information Services
To:
References
FOIA/PA-2012-0325
Download: ML13052A789 (1)

Text

Agenda FERC Meeting with NRC Personnel Purpose

" To gain an understanding of FERC practices regarding dam failure assessment, both deterministic and probabilistic approaches, in general

" To gain an understanding of the specific assessment and status of the Jocassee Dam

• To share NRC perspectives on probabilistic assessment of external events Introduction and Opening Remarks Technical Staff Discussions Flood inundation

• Discussion of calculation packages from Duke

• Sensitivity calculations for dam breach parameters (e.g., time to failure, breach size)

1. How FERC generically approaches

2. Any specific information related to Jocassee

• Discussion of FERC acceptance criteria for parameters Seismic-related and dam structure information

• Discussion of seepage from 2004 to present

• Settlement of dam foundation

• Condition of embankment shells and potential soil liquefaction

• Discussion of dam construction and soil compaction

• Discussion of piezometer data taken from wells Failure rate frequency

" Discussion of how FERC assesses probability of dam failure modes such as overtopping and dam-specific failure modes

• Discussion of FERC's criteria for dam health and its relationship to likelihood of failure