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