ML072690098
| ML072690098 | |
| Person / Time | |
|---|---|
| Site: | 07109279, 07109305 |
| Issue date: | 09/25/2007 |
| From: | Meraj Rahimi NRC/NMSS/SFST/LID |
| To: | Nader Mamish NRC/NMSS/SFST |
| Shared Package | |
| ML072690157 | List: |
| References | |
| TAC L23827, TAC L24108, TAC L24111 | |
| Download: ML072690098 (6) | |
Text
MEMORANDUM TO: Nader L. Mamish, Deputy Director Division of Spent Fuel Storage and Transportation Office of Nuclear Material Safety and Safeguards FROM:
Meraj Rahimi, Senior Project Manager
/RA/
Licensing Section Division of Spent Fuel Storage and Transportation Office of Nuclear Material Safety and Safeguards
SUBJECT:
SUMMARY
OF SEPTEMBER 5, 2007, MEETING WITH WASHINGTON TRU SOLUTIONS ON THE CONTENTS FOR HALFPACT (DOCKET NO.
71-9279, TAC NO. L24111) AND TRUPACT-III (DOCKET NO. 71-9305, TAC NO. L23827) TRANSPORTATION PACKAGES On September 5, 2007, the Nuclear Regulatory Commission (NRC) staff and representatives of Washington TRU Solutions (WTS) held a pre-application meeting to discuss a future amendment to the Certificate of Compliance (CoC) for HalfPACT transportation package and the recently submitted application for the TRUPACT-III transportation package.
With respect to the CoC amendment for HalfPACT, WTS is proposing to transport the transuranic waste containers, with high radiation sources classified as remote-handled waste, in shielded containers inside HalfPACT transportation packages. WTS presented the design of shielded container with a proposed test sequence using the full-scale Inner Containment Vessel (ICV) of the HalfPACT transportation package in order to demonstrate the structural integrity of the shielded container. WTS is proposing to perform the drop tests only on the bottom end and the flat side orientations. The staff questioned the rationale shown as the energy absorption distribution between axial and radial components WTS considered in arriving at the conclusion that only two drop orientations are needed. WTS is planning to use analytical approaches for thermal, shielding, and criticality assessments. The amendment request is planned for submittal at the end of November 2007.
With regard to the content for the TRUPACT-III package, the presentation was mainly focused on the exemption request which was included as part of the June 30, 2007, TRUPACT-III application. The exemption request pertains to 10 CFR 71.43(d) which states there will be no significant chemical, galvanic, or other reaction among the packaging components, among package contents, WTS is requesting an exemption from this requirement in order to be able to ship sealed containers greater than 4 liters or aerosol canisters within the transuranic waste in Standard Large Boxes (SLB) which generate significant amounts of flammable hydrogen gases. The size of sealed containers will be limited by the packaging maximum normal operating pressure limit which would include the burst pressure from a possible deflagration of the sealed containers. WTS presented the results of the deflagration tests performed using a surrogate sealed container within a SLB and a mock-up of TRUAPCT-III containment vessel. The staff indicated that the exemption request will be reviewed and evaluated as part of the TRUPACT-III application. In addition, WTS indicated that the
N. Mamish
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assumption with respect to fissile material geometry for criticality analysis was changed from spherical to pyramid.
NRC staff expressed some concerns with respect to a less conservative assumption for fissile material source geometry in the TRUPACT-III package.
No regulatory decisions were made at the meeting. An attendance list is included as Enclosure
- 1. Enclosure 2 includes the handouts provided at the meeting.
Docket Nos. 71-9279, 71-9305 TAC Nos. L24111, L24108
Enclosures:
- 1. Attendance List
- 2. Meeting Handout
N. Mamish
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assumption with respect to fissile material geometry for criticality analysis was changed from spherical to pyramid.
NRC staff expressed some concerns with respect to a less conservative assumption for fissile material source geometry in the TRUPACT-III package.
No regulatory decisions were made at the meeting. An attendance list is included as Enclosure
- 1. Enclosure 2 includes the handouts provided at the meeting.
Docket Nos. 71-9279, 71-9305 TAC Nos. L24111, L24108 Attachments: 1. Attendance List
- 2. Meeting Handout DISTRIBUTION:
NRC File Center SFPO r/f Docket 71-9279 Docket 71-9305 Attendees G:\\SFPO\\Rahimi\\71-9279\\meeting-5Sep07-summary.doc G:\\SFPO\\Rahimi\\71-9279\\Shielded Container NRC Meeting Slides(final2).pdf G:\\SFPO\\Rahimi\\71-9305\\NRC3_PPB_082907_cr.pdf OFC:
SFST E
SFST E
SFPO NAME:
MRahimi MDeBose RNelson DATE:
09/14/07 09/18/07 09/25/07 C = COVER E = COVER & ENCLOSURE N = NO COPY OFFICIAL RECORD COPY
Meeting Between Washington TRU Solutions and the Nuclear Regulatory Commission September 5, 2007 ATTENDANCE LIST Name Affiliation E-mail Meraj Rahimi NRC/NMSS/SFST mxr2@nrc.gov Jeremy Smith NRC/NMSS/SFST jas5@nrc.gov Jerry Chuang NRC/NMSS/SFST tjc@nrc.gov Milton Valentin NRC/SFST/SFPO mdv@nrc.gov David Tang NRC/SFST/SFPO dtt@nrc.gov Ron Parkhill NRC/NMSS/SFST rwp@nrc.gov Andrew Barto NRC/NMSS/SFST abbz@nrc.gov Charles Interrante NRC//NMSS/SFST cgi@nrc.gov Steve Porter Washington TRU Solutions steve.porter@wipp.ws Brad Day Washington TRU Solutions brad.day@wipp.ws Todd Sellmer Washington TRU Solutions todd.sellmer@wipp.ws Gary Clark Packaging Technology, Inc. gary.clark@areva.com Marc Italiano U.S. DOE marc.italiano@wipp.ws
Meeting Handouts