ML21160A081
| ML21160A081 | |
| Person / Time | |
|---|---|
| Site: | 07109393 |
| Issue date: | 06/09/2021 |
| From: | Pierre Saverot Storage and Transportation Licensing Branch |
| To: | Christopher Regan Division of Fuel Management |
| PSaverot NMSS/DFM/STL 301.415.7505 | |
| Shared Package | |
| ML21160A080:DEV000000001 | List: |
| References | |
| EPID L-2021-NEW-0003 | |
| Download: ML21160A081 (3) | |
Text
UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20555-0001 June 9, 2021 MEMORANDUM TO: Christopher M. Regan, Deputy Director Division of Fuel Management Office of Nuclear Material Safety and Safeguards Signed by Saverot, Pierre FROM: Pierre Saverot, Project Manager on 06/09/21 Storage and Transportation Licensing Branch Division of Fuel Management Office of Nuclear Material Safety and Safeguards
SUBJECT:
SUMMARY
OF MAY 25, 2021 MEETING WITH ORANO FEDERAL SERVICES
Background
On May 25, 2021, an Observation Public Meeting was held by teleconference between the NRC staff and representatives from Orano Federal Services, LLC; Orano Decommissioning Services, LLC; and Accelerated Decommissioning Partners (ADP), LLC, to present the licensing approach for a special authorization request for a one time shipment of the Crystal River 3 (CR3) reactor pressure vessel (RPV) to support the CR3 decommissioning project. A first meeting was held on April 1, 2021. This second meeting was noticed on May 4, 2021 (ADAMS Accession No. ML21124A425).
The meeting attendance list and the presentation are provided as Enclosure Nos. 1 and 2, respectively.
Discussion The NRC approved the Crystal River 3 NPP license transfer from Duke Energy Florida to ADP CR3 and ADP intends to decommission CR3 by 2027. Orano Decommissioning Services will perform the segmentation, removal, packaging of the Reactor Pressure Vessel (RPV) and internals.
The middle section of the RPV, including the bottom of the plenum assembly and core support shield, the upper and lower grid assemblies, the thermal shield, and the active fuel length regions has a total activity of 38,000 Ci, prior to segmentation, among which 20,700 Ci are from Co-60.
CONTACT: Pierre Saverot, NMSS/DFM 301-415-7505
C. Regan The applicant presented its licensing approach, in accordance with 10 CFR 71.41(d), and explained the design details for this 860,000 lbs. grouted Type B package, with 3-inch thick side shells and welded 6-inch thick bottom and top closure covers. The applicant explained the design criteria, the welding criteria, and the fracture toughness considerations (in accordance with Regulatory Guide 7.12) for the package.
Staff requested that the application includes the calculations for the 38% uniaxial limit and the 22% tri-axial limit and that more details shall be provided for the closure deformation as well as the partial weld failure resulting from the normal conditions of transport (NCT) corner drop test.
For the hypothetical accident conditions (HAC) side and corner drop tests, weld erosion does take place, but the applicant explained that half of the weld is still present and any HAC release remains below the maximum regulatory limits.
Staff asked that the applicant explains the rationale behind the assumptions made, e.g., 25% of the grout internal to the RPV is assumed to hold all of the dispersible activity and less than one-half A2 will escape. In addition, the applicant will need to provide (i) an explanation for why the package is capable of sustaining cold temperatures, (ii) the references for the parameters A and E in the equation for fractional dehydration of calcium silicate, (iii) the data on moisture release and radiolysis of water, and (iv) the calculation of the MNOP and of the pressure limits for both NCT and HAC. Staff asked the applicant to clarify a package modeling performed in MCNP6.2 with the simplifications for component geometry that were based on CAD models.
The applicant is planning for a July 2021 submittal. There was one question from the member of the public related to the potential shipment of other wastes from the Crystal River site. Staff made no regulatory commitment during the meeting.
DOCKET NO. 71-9393 EPID L-2021-NEW-0003
Enclosures:
1- Meeting Attendees 2- Presentation
C. Regan Meeting Between Orano Federal Services, LLC and the Nuclear Regulatory Commission May 25, 2021 Meeting Attendees NRC/NMSS/DFM Pierre Saverot Young Kim JoAnn Ireland Omar Khan Jimmy Chang Chris Allen ORANO FEDERAL SERVICES Chris Backus Phil Noss Armando Merlin Erik Gonsiorowski Dan Wick ORANO DECOMMISSIONING SERVICES Matt Lucas Dirk Bender Donald LeFrancois Adam Mancini Arthur Niemoller ORANO TN Jason Heineman Mike Valenzano ADP CR3 Phyllis Dixon Craig Miller Marck Van Sicklen WCS Matt Hooper BEYOND NUCLEAR Paul Gunter