ML18352A886

NAC International, Inc., Submittal of Supplement Requesting a Revision to Amendment 7 of the U.S. Nuclear Regulatory Commission Certificate of Compliance No. 1031 for the Magnastor Cask System

ML18352A886
Person / Time
Site:	07201031
Issue date:	12/14/2018
From:	Fowler W NAC International
To:	Document Control Desk, Office of Nuclear Material Safety and Safeguards
References
Download: ML18352A886 (3)

Text

A NAC INTERNATIONAL December 14, 2018 U.S. Nuclear Regulatory Commission 11555 Rockville Pike Rockville, MD 20852-2738 Attn:

Document Control Desk Atlanta Corporate Headquarters 3930 East Jones Bridge Road, Suite 200 Norcross, GA 30092 Phone 770-447-1144 Fax 770-447-1797 www.nacintl.com

Subject:

Submission of a Supplement Requesting a Revision to Amendment 7 of the U.S. Nuclear Regulatory Commission Certificate of Compliance No. 1031 for the NAC International MAGNASTOR Cask System

References:

Docket No. 72-1031

1. U.S. Nuclear Regulatory Commission (NRC) Certificate of Compliance (CoC) No.

1031 for the NAC International MAGNASTOR Cask System, Amendment No. 7, July 28, 2017

2. MAGNASTOR Cask System Final Safety Analysis Report (FSAR), Revision 9 NAC, herewith, requests the NRC incorporate a correction for an editorial error located in Technical Specification (TS) Appendix A, for Reference I. The editorial error is located in TS Appendix A, Section 5.2.( e) which redirects the user to "... the vent port and drain port shall be verified in accordance with the procedures in Section 9.1.1." With the addition.of the Passive MAGNASTOR Transfer Cask (PMTC) in Amendment 7 this should have been revised to read "... the vent port and drain port shall be verified in accordance with the procedures in Section 9.1.1 (MTC) or 9.4.1 (PMTC)."

It is requested that the NRC issue a revised TS for Amendment 7 in case future NAC MAGNASTOR users decide to use the PMTC for canister transfer operations. NAC is requesting the NRC issue a set of revised TS for Amendment 7 without the implementation of a backfit review, because Amendment 7 has not been utilized by any MAGNASTOR user to date. However, NAC does have a customer who intends on using Amendment 7 and the PMTC in 2019. Thus, NAC is requesting this revision to be effective by July 1, 2019.

If you have any comments or questions, please contact me on my direct line at 678-328-1236.

Sincere~

Wren Fowler Director, Licensing Engineering Attachments: - Proposed Changes for MAGNASTOR Technical Specifications ED20180134

ANAC

~I INTERNATIONAL Proposed Changes for MAGNASTOR Technical Specifications ED20180134 Page I of2

ANAC

~I INTERNATIONAL ADMINISTRATIVE CONTROLS AND PROGRAMS 5.0 5.0 5.1 5.2 ADMINISTRATIVE CONTROLS AND PROGRAMS Radioactive Effluent Control Program 5.1.1 5.1.2 5.1.3 A program shall be established and maintained to implement the requirements of 10 CFR 72.44 (d) or 10 CFR 72.126, as appropriate.

The MAGNASTOR SYSTEM does not create any radioactive materials or have any radioactive waste treatment systems.

Therefore, specific operating procedures for the control of radioactive effluents are not required. LCO 3.3.2, TSC Surface Contamination,/Pi:ovicl~*s,_assurance that excessive surface contamination is not avc!il.(bl~ for rel~a~e as a radioactive effluent.

\\ \\

\\'

This program includes an environmental/mo~itoring,.)>r:ogr~n\\/ Each

/

~

~. '*

/

general license user may incorporate MAGNASTOR>SYSTEM.operations into their environmental monitoring progra~rn/j6r 10. CFR Part 50 operations.

TSC Loading, Unloading, and Preparati6,n\\Pr9grapi.::,:**\\ ***... /.

I

• /

I A program shall be establishetfto*implement the FSAR, Chapter 9 general procedural guidance for lo~;i"qirig fuel-ahtj components into the TSC, unloading fuel and components from' the TSC, ahd1prepafrng the TSC and CONCRETE CASK for storage.

Th~,..,,requiremeri'ts 1

1 of the program for loading and preparing the TSC/s'h.a!l'*qe '*G6mpleted _pr;ior to removing the TSC from the 1 O CFR 50 stru..ctyre.

. *,*.The~-~;erog(am requirements for UNLOADING OPERATIONS<~h§ill be,.~aintainea* until all spent fuel is removed from the spent fuel pool aqa.. TRANSPORT OPERATIONS have been completed on the last CON.CRErE CASK. The program shall provide for evaluation and contrqr ~Jf the foilowi.ng ~equirements during the applicable operation:

a. Verify that no TRANSFER CASK handling or CONCRETE CASK

tum'dlJ~g usingA~e lifting lugs occurs when the ambient temperature is

~*0°F>*TfiL~Jfr:nlt is NOT applicable to the stainless steel MTC or PMTC.

i

b. ):TIJ~wate.r temperature of a water-filled, or partially filled, loaded TSC

. ** shaffbe-shown by analysis and/or measurement to be less than boiling at

'.. all times.

c. Verify that the drying time, cavity vacuum pressure, and component and gas temperatures ensure that the fuel cladding temperature limit of 400°C is not exceeded during TSC preparation activities, including TRANSFER OPERATIONS, and that the TSC is adequately dry. For fuel with burnup

> 45 GWd/MTU, limit cooling cycles to s 10 for temperature changes greater than 65°C.

d. Verify that the helium backfill purity and mass assure adequate heat transfer and preclude fuel cladding corrosion.

e. The integrity of the inner port cover welds to the closure lid at the vent port and at the drain port shall be verified in accordance with the procedures in Section 9.1.1 (MTC) or 9.4.1 (PMTC).

( continued)

Certificate of Compliance No. 1031 AS-1 Amendment No. 7 Revision 1