Day 1 — June 4, 2003 — Base Case Review

Dr. Rob Tregoning (USNRC) welcomed everyone to the Second Elicitation meeting and reviewed the agenda for the two days. Everyone in attendance introduced themselves. A package of the Day 1 presentations was provided to everyone. Rob warned the group that there was a lot of material to cover in each presentation. Furthermore, he indicated that we should not treat what is presented at this meeting as final, but more of a snapshot of where we are presently. Next, Rob reviewed the objectives for the first day of the meeting. The objectives for the first day were:

1. Review base case conditions

2. Understand assumptions, methodologies, and results calculated by each base case member

3. Understand important factors and variables that lead to differences among results

4. Determine what additional calculations are required to complete the base case analysis

Rob also indicated that he was not asking everyone to agree with the results to be presented, but simply to understand what was done. The panel members can state differences of opinion during their individual elicitations.

Next, the second day agenda (Elicitation Coordination) was discussed. The second day agenda has been adjusted slightly to ensure adequate time for the topic of non-piping LOCA frequency determination since it received less attention at the last meeting

Rob then reviewed the meeting objectives for Day 2. The Day 2 objectives were:

1. Finalize elicitation question sets and provide consistent understanding of each question.

2. Determine methodology for evaluating non-piping LOCAs and identification of non-piping base case data.

3. Determine methodology for evaluating conditional seismic loading including determination of seismic loading magnitude.

4. Determine what information panelists will require prior to their elicitations and assign action items for providing information.

5. Develop final schedule and time-frame for upcoming elicitations.

Bruce Bishop (Westinghouse) asked if the panel would get a status report on the new PFM code being developed as part of the USNRC program. Rob indicated that time was not available at this meeting, but that sometime in the fall or winter an initial meeting will be set up where this new code being developed by Battelle and Emc2 could be presented.