ML16159A220

Regulatory Commitments for Proposed Technical Specification Change for Spent Fuel Storage

ML16159A220
Person / Time
Site:	Millstone
Issue date:	06/01/2016
From:	Stoddard D Dominion Nuclear Connecticut
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
Download: ML16159A220 (5)

Text

Dominion Nuclear Connecticut, Inc.

5000 Dominion Boulevard, Glen Allen, VA 23060 Web Address: www.dom.com

(

June1,2016 U.S. Nuclear Regulatory Commission Serial No.16-224 Attention: Document Control Desk NRA/WDC .RO Washington, DC 20555 Docket No. 50-336 License No. DPR-65 DOMINION NUCLEAR CONNECTICUT, INC.

MILLSTONE POWER STATION UNIT 2 REGULATORY COMMITMENTS FOR PROPOSED TECHNICAL SPECIFICATION CHANGE FOR SPENT FUEL STORAGE By letter dated December 17, 2012, Dominion Nuclear Connecticut, Inc. (DNC) submitted a license amendment request (LAR) for Millstone Power Station Unit 2 (MPS2). The proposed amendment would* revise Technical Specification (TS) 1.39, "Storage Pattern," TS 3/4.9.18, "Spent Fuel Pool - Storage," TS 3/4.9.19, "Spent Fuel Pool - Storage Patterns," TS 5.3.1, "Fuel Assemblies," TS 5.6.1, "Criticality," and TS 5.6.3, "Capacity" with conforming changes to Technical Specifications Bases (TS __

Bases) 3/4.9.18 and 3/4.9.19. The proposed changes would reflect the results and constraints of a new criticality safety analysis for fuel assembly storage in the MPS2 fuel storage racks.

In a letter dated February 11, 2013, the NRC provided DNC an opportunity to supplement the LAR identified above. The NRC requested DNC justify the continued credit of Boraflex. DNC provided the supplement in a letter dated February 25, 2013.

In a letter dated April 26, 2013, the NRC transmitted a request for additional information (RAI) to DNC related to the LAR--DNC responded to the RAI in a letter dated May 28, 2013. .

In an email dated June 16, 2014, the NRC transmitted a draft second request for additional information (RAI) to DNC related to the LAR. In an email dated July 20, 2015, the NRC confirmed that the draft questions are considered final. In a letter dated July 21, 2015, DNC responded to the RAI and included revised TS changes which superseded the proposed TS changes provided in the December 17, 2012 LAR.

During review of the LAR, the NRC identified four activities that DNC committed to associated with the LAR. DNC will ensure that the activities listed in the attachment to this letter are performed prior to implementation of the approved LAR.

Serial No.16-224 Docket No. 50-336 Page 2 of 3 If you have any questions regarding this submittal, please contact Wanda Craft at (804) 273-4687.

Sincerely, Daniel G. Stoddard Senior Vice President - Nuclear Operations COMMONWEALTH OF VIRGINIA COUNTY OF HENRICO The foregoing document was acknowledged before me, in and for the County and Commonwealth aforesaid, today by Daniel G. Stoddard, who is Senior Vice President - Nuclear Operations of Dominion Nuclear Connecticut, Inc. He has affirmed before me that he is duly authorized to execute and file the foregoing document in behalf of that Company, and that the statements in the document are true to the best of his knowledge and belief.

Acknowledged before me this / S'/' day of ~ u vte- , 2016.

u us.f 31 i GARY DON MILLER Notary Public Commonwealth of Virginia Reg. # 7629412 My Commission Expires August 31, 20.J!l Commitments made in this letter: See the attachment to this letter

Attachment:

1. Regulatory Commitments for Proposed Technical Specification Change for Spent Fuel Storage

Serial No.16-224 Docket No. 50-336 Page 3 of 3

('

cc: U.S. Nuclear Regulatory Commission Region I 2100 Renaissance Blvd, Suite 100 King of Prussia, PA 19406-2713 R. V. Guzman Senior Project Manager U.S. Nuclear Regulatory Commission One White Flint North, Mail Stop 08-C 2 11555 Rockville Pike Rockville, MD 20852-2738 NRC Senior Resident Inspector Millstone Power Station Director, Radiation Division Department of Energy and Environmental Protection 79 Elm Street Hartford, CT 06106-5127

Serial No.16-224 Docket No. 50-336 ATTACHMENT REGULATORY COMMITMENTS FOR PROPOSED TECHNICAL SPECIFICATION CHANGE FOR SPENT FUEL STORAGE DOMINION NUCLEAR CONNECTICUT, INC.

MILLSTONE POWER STATION UNIT 2

Serial No.16-224 Docket No. 50-336 Attachment, Page 1 of 1 iJ By letter dated December 17, 2012, Dominion Nuclear Connecticut, Inc. (DNC) submitted a license amendment request (LAR) for Millstone Power Station Unit 2

• i (MPS2). The proposed amendment would revise Technical Specification (TS) 1.39, "Storage Pattern," TS 3/4.9.18, "Spent Fuel Pool - Storage," TS 3/4.9.19, "Spent Fuel Pool - Storage Patterns," TS 5.3.1, "Fuel Assemblies," TS 5.6.1, "Criticality," and TS 5.6.3, "Capacity" with conforming changes to Technical Specifications Bases (TS Bases) 3/4.9.18 and 3/4.9.19. The proposed changes would reflect the results and constraints of a new criticality safety analysis for fuel assembly storage in the MPS2 fuel storage racks.

During review of the LAR, the NRC identified four activities that DNC committed to associated with the LAR. DNC will ensure that the activities listed below are performed prior to implementation of the approved LAR.

Regulatory Commitments

1) DNC will ensure that its fuel handling procedures include the stipulation that the reactivity control devices must be installed prior to placement of the fuel into the Region 3 storage locations.

2) DNC will ensure that its core reload procedures include the stipulation that the burnup history, core operating parameters, burnable absorber use, and CEA usage remains bounded by this criticality safety analysis.

3) DNC will ensure that its fuel reconstitution procedures include the stipulations (1) the fuel assembly being reconstituted will be neutronically decoupled from the other fuel assemblies in the SFP, (2) only one fuel rod will be removed at a time, (3) the original fuel rod will be returned to its original location, or it will be replaced with a stainless steel rod or a fuel rod with naturally occurring U-235, or if the entire rod cannot be removed or the removed rod cannot be replaced, then an analysis similar to that performed in Attachment 4 of DNC's supplemental letter dated July 21, 2015 (Reference 4) for fuel assembly P-26 may be performed.

4) DNC will ensure that its fuel handling procedures and training program are updated to include restrictions on storing fresh fuel in Regions 3 and 4, visual cues to allow error recognition in move sheets, and training to these procedures are completed.

Dominion Nuclear Connecticut, Inc.

5000 Dominion Boulevard, Glen Allen, VA 23060 Web Address: www.dom.com

(

June1,2016 U.S. Nuclear Regulatory Commission Serial No.16-224 Attention: Document Control Desk NRA/WDC .RO Washington, DC 20555 Docket No. 50-336 License No. DPR-65 DOMINION NUCLEAR CONNECTICUT, INC.

MILLSTONE POWER STATION UNIT 2 REGULATORY COMMITMENTS FOR PROPOSED TECHNICAL SPECIFICATION CHANGE FOR SPENT FUEL STORAGE By letter dated December 17, 2012, Dominion Nuclear Connecticut, Inc. (DNC) submitted a license amendment request (LAR) for Millstone Power Station Unit 2 (MPS2). The proposed amendment would* revise Technical Specification (TS) 1.39, "Storage Pattern," TS 3/4.9.18, "Spent Fuel Pool - Storage," TS 3/4.9.19, "Spent Fuel Pool - Storage Patterns," TS 5.3.1, "Fuel Assemblies," TS 5.6.1, "Criticality," and TS 5.6.3, "Capacity" with conforming changes to Technical Specifications Bases (TS __

Bases) 3/4.9.18 and 3/4.9.19. The proposed changes would reflect the results and constraints of a new criticality safety analysis for fuel assembly storage in the MPS2 fuel storage racks.

In a letter dated February 11, 2013, the NRC provided DNC an opportunity to supplement the LAR identified above. The NRC requested DNC justify the continued credit of Boraflex. DNC provided the supplement in a letter dated February 25, 2013.

In a letter dated April 26, 2013, the NRC transmitted a request for additional information (RAI) to DNC related to the LAR--DNC responded to the RAI in a letter dated May 28, 2013. .

In an email dated June 16, 2014, the NRC transmitted a draft second request for additional information (RAI) to DNC related to the LAR. In an email dated July 20, 2015, the NRC confirmed that the draft questions are considered final. In a letter dated July 21, 2015, DNC responded to the RAI and included revised TS changes which superseded the proposed TS changes provided in the December 17, 2012 LAR.

During review of the LAR, the NRC identified four activities that DNC committed to associated with the LAR. DNC will ensure that the activities listed in the attachment to this letter are performed prior to implementation of the approved LAR.

Serial No.16-224 Docket No. 50-336 Page 2 of 3 If you have any questions regarding this submittal, please contact Wanda Craft at (804) 273-4687.

Sincerely, Daniel G. Stoddard Senior Vice President - Nuclear Operations COMMONWEALTH OF VIRGINIA COUNTY OF HENRICO The foregoing document was acknowledged before me, in and for the County and Commonwealth aforesaid, today by Daniel G. Stoddard, who is Senior Vice President - Nuclear Operations of Dominion Nuclear Connecticut, Inc. He has affirmed before me that he is duly authorized to execute and file the foregoing document in behalf of that Company, and that the statements in the document are true to the best of his knowledge and belief.

Acknowledged before me this / S'/' day of ~ u vte- , 2016.

u us.f 31 i GARY DON MILLER Notary Public Commonwealth of Virginia Reg. # 7629412 My Commission Expires August 31, 20.J!l Commitments made in this letter: See the attachment to this letter

Attachment:

1. Regulatory Commitments for Proposed Technical Specification Change for Spent Fuel Storage

Serial No.16-224 Docket No. 50-336 Page 3 of 3

('

cc: U.S. Nuclear Regulatory Commission Region I 2100 Renaissance Blvd, Suite 100 King of Prussia, PA 19406-2713 R. V. Guzman Senior Project Manager U.S. Nuclear Regulatory Commission One White Flint North, Mail Stop 08-C 2 11555 Rockville Pike Rockville, MD 20852-2738 NRC Senior Resident Inspector Millstone Power Station Director, Radiation Division Department of Energy and Environmental Protection 79 Elm Street Hartford, CT 06106-5127

Serial No.16-224 Docket No. 50-336 ATTACHMENT REGULATORY COMMITMENTS FOR PROPOSED TECHNICAL SPECIFICATION CHANGE FOR SPENT FUEL STORAGE DOMINION NUCLEAR CONNECTICUT, INC.

MILLSTONE POWER STATION UNIT 2

Serial No.16-224 Docket No. 50-336 Attachment, Page 1 of 1 iJ By letter dated December 17, 2012, Dominion Nuclear Connecticut, Inc. (DNC) submitted a license amendment request (LAR) for Millstone Power Station Unit 2

• i (MPS2). The proposed amendment would revise Technical Specification (TS) 1.39, "Storage Pattern," TS 3/4.9.18, "Spent Fuel Pool - Storage," TS 3/4.9.19, "Spent Fuel Pool - Storage Patterns," TS 5.3.1, "Fuel Assemblies," TS 5.6.1, "Criticality," and TS 5.6.3, "Capacity" with conforming changes to Technical Specifications Bases (TS Bases) 3/4.9.18 and 3/4.9.19. The proposed changes would reflect the results and constraints of a new criticality safety analysis for fuel assembly storage in the MPS2 fuel storage racks.

During review of the LAR, the NRC identified four activities that DNC committed to associated with the LAR. DNC will ensure that the activities listed below are performed prior to implementation of the approved LAR.

Regulatory Commitments

1) DNC will ensure that its fuel handling procedures include the stipulation that the reactivity control devices must be installed prior to placement of the fuel into the Region 3 storage locations.

2) DNC will ensure that its core reload procedures include the stipulation that the burnup history, core operating parameters, burnable absorber use, and CEA usage remains bounded by this criticality safety analysis.

3) DNC will ensure that its fuel reconstitution procedures include the stipulations (1) the fuel assembly being reconstituted will be neutronically decoupled from the other fuel assemblies in the SFP, (2) only one fuel rod will be removed at a time, (3) the original fuel rod will be returned to its original location, or it will be replaced with a stainless steel rod or a fuel rod with naturally occurring U-235, or if the entire rod cannot be removed or the removed rod cannot be replaced, then an analysis similar to that performed in Attachment 4 of DNC's supplemental letter dated July 21, 2015 (Reference 4) for fuel assembly P-26 may be performed.

4) DNC will ensure that its fuel handling procedures and training program are updated to include restrictions on storing fresh fuel in Regions 3 and 4, visual cues to allow error recognition in move sheets, and training to these procedures are completed.