ML25087A028

Enclosure, Letter Dated 7/3/23 from NNSA to NRC, Roadmap, Revised SAR, 435-B Transport Package, Safety Analysis Report, Revision 6 (CoC No. 9355, Rev. 4) (Docket No. 71-9355)

ML25087A028
Person / Time
Site:	07109355
Issue date:	07/03/2023
From:	US Dept of Energy, National Nuclear Security Admin
To:	Garcia-Santos N Division of Fuel Management
Shared Package
ML25087A035	List: ML25087A027 ML25087A028
References
CAC 001029, EPID L-2023-LLA-0102
Download: ML25087A028 (1)

Text

Roadmap of Detailed Changes Made to the 435-B SAR from Rev. 5.1 to Rev. 6 1

The table below identifies and summarizes the changes made to the 435-B SAR, Revision 5.1, to create Revision 6. Revision 6 has been created to implement several requests of the client to improve security and operational efficiency. The location and discussion of all changes are provided in the table. All changes are marked in the SAR text with revision bars.

Section Reference Change Comment Section 1.2.1.6.2, and Figures 1.2-19, 1.2-20, and 1.2-21 Add option for zinc plating for the disposal canister lid closure bolts.

Both galvanizing and zinc plating are appropriate corrosion protection for the disposal canister lid bolts.

Section 1.2.2 and Section 1.2.2.1 Add sentence to Section 1.2.2 and delete a phrase from Section 1.2.2.1 relating to the sealed sources.

Clarify that sources must be sealed and may be in normal form or special form.

Section 1.2.2.3 Correct the maximum decay heat wattage for the IBL 437 from 15W to 30W.

Correction of typographical error. The thermal evaluation of the IBL 437 uses the correct wattage of 30W in Section 3.5.5, and no revision to the thermal evaluation is necessary.

Table 1.2-2 Correct maximum activity of the IBL 437 from 5,160 Ci to 5,610 Ci..

Correction of typographical error. The activity is stated correctly in Section 1.2.2.3, and the shielding evaluation of the IBL 437 uses the correct activity of 5,610 Ci in Table 5.5.4-5, and no revision to the shielding evaluation is necessary.

Section 1.3.2 Added reference to Section 7.1.6 to the definition of Special Form Capsule in the glossary.

Clarification.

Drawing 1916-01-01-SAR Updated to Revision 8.

Added Flag Note 56 which allows the closure bolt heads to have an opening for a security tool instead of a hex shape as an option.

Drawing 1916-01-05-SAR Updated to Revision 2.

Revises General Note 8 to add the baseplate and the rubber pad to the items which may be notched or relieved to accommodate appurtenances on the IBL 437.

Section 2.10 Revise to include a reference to the requirements of Section 7.1.6.

This allows the shipper to take advantage of special form under the conditions specified in Section 7.1.6.

Roadmap of Detailed Changes Made to the 435-B SAR from Rev. 5.1 to Rev. 6 2

Section Reference Change Comment Section 7.1.2 Expanded paragraph describing the sections for operational steps for each payload type.

Clarification.

Section 7.1.2.1, Section 7.1.2.2, Section 7.1.2.3, Section 7.1.2.4.2 Delete Section 7.1.2.1, steps 18 through 30, add new Step 18: Continue operations at Section 7.1.3, Final Preparations for All Shipments.

Delete Section 7.1.2.2, steps 11 through 23, add new Step 11: (ditto)

Delete Section 7.1.2.3, steps 19 through 31, add new Step 19: (ditto)

Delete Section 7.1.2.4.2, steps 22 through 34, add new Step 22: (ditto)

Consolidates repetitive procedure steps in a revised Section 7.1.3.

Section 7.1.2.2.1 Added text If possible to substeps #2 and #5.

This accommodates the circumstance in which the GC-3000 has been modified for security purposes, by which the auxiliary shield components cannot be removed and the shield plug weld is not accessible.

Section 7.1.3, Section 7.1.3.1, and Section 7.1.3.2 Consolidate operational steps removed from Sections 7.1.2.1, 7.1.2.2, 7.1.2.3, and 7.1.2.4.2, and include new language governing the accommodation of special form.

The consolidation of steps removes redundancy and adds clarity to the requirements. The added language regarding special form regulates when a pre-shipment leakage rate test is used. Note, Section 7.1.3.2 is the same as the previous Section 7.1.3.

Section 7.1.6 New section.

Added to define the requirements for the acceptance of a source as being in special form.