ML15246A124

Connecticut, Inc. Millstone Power Station Unit 2 Supplement to License Amendment Request to Relocate TS Surveillance Frequencies to Licensee Controlled Program in Accordance with TSTF-425, Revision 3

ML15246A124
Person / Time
Site:	Millstone
Issue date:	08/27/2015
From:	Clark G Dominion, Dominion Nuclear Connecticut
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
15-431, TSTF-425, Rev 3
Download: ML15246A124 (8)

Text

Dominion Nuclear Connecticut, Inc. u*)omn n 5000 Dominion Boulevard, Glen Allen, VA 23060 Web Address: www.dom.com August 27, 2015 U.S. Nuclear Regulatory Commission Serial No.15-431 Attention: Document Control Desk NSSL/MLC R0 Washington, DC 20555 Docket No. 50-336 License No. DPR-65 DOMINION NUCLEAR CONNECTICUT, INC.

MILLSTONE POWER STATION UNIT 2 SUPPLEMENT TO LICENSE AMENDMENT REQUEST TO RELOCATE TS SURVEILLANCE FREQUENCIES TO LICENSEE CONTROLLED PROGRAM IN ACCORDANCE WITH TSTF-425. REVISION 3 By letter dated October 22, 2014, Dominion Nuclear Connecticut, Inc. (DNC) submitted a license amendment request (LAR) for Millstone Power Station Unit 2 (MPS2). In that letter, DNC proposed to modify the technical specifications (TSs) by relocating specific surveillance frequencies to a licensee-controlled program with the adoption of Technical Specification Task Force (TSTF)-425, Revision 3, "Relocate Surveillance Frequencies to Licensee Control - Risk-Informed Technical Specification Task Force (RITSTF) Initiative 5b." Additionally, DNC proposed to add a new program, the Surveillance Frequency Control Program (SFCP), to TS Section 6, Administrative Controls. The proposed changes are consistent with NRC-approved IndustrylTSTF Standard Technical Specifications (STS) change TSTF-425, Revision 3, (ADAMS Accession No. ML090850642).

The Federal Register Notice published on July 6, 2009 (74 FR 31996), announced the availability of this TS improvement.

This supplement to the October 22, 2014 LAR revises the proposed change to Table 4.7-2, Item 1 for Gross Activity Determination which was recently identified by DNC to be incomplete.

Attachment 1 provides a description and assessment of the proposed change.

Attachment 2 provides the revised markup for Table 4.7-2, Item 1, to replace the corresponding page previously submitted in the October 22, 2014 LAR.

Pursuant to the provisions of 10 CER 50.92, the revised change proposed herein does not affect the conclusion of the Significant Hazards Consideration presented in the October 22, 2014 LAR.

DNC requests approval of the proposed amendment by October 22, 2015 with the amendment to be implemented within 90 days of NRC approval.

In accordance with 10 CFR 50.91(b), a copy of this LAR supplement is being provided to the State of Connecticut.

Serial No: 15-431 Docket No. 50-336 Supplement to TSTF-425, Rev. 3 Page 2 of 3 Should you have any questions in regard to this submittal, please contact Wanda Craft at (804) 273-4687.

Sincerely, Gianna C. Clark Vice President - Nuclear Support Services COMMONWEALTH OF VIRGINIA)

COUNTY OF HENRICO)

The foregoing document was acknowledged before me, in and for the County and Commonwealth aforesaid, today by Gianna C. Clark who is Vice President - Nuclear Support Services of Dominion Nuclear Connecticut, Inc. She has affirmed before me that she 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 her knowledge and belief.

Acknowledged before me this .i.h day of*A*I .' ,2015.

My Commission Expires: 1.231,I ' . ,! ot li

~Notary Public Commonwealth of Virginia MComsinEpResDmer. #1758653 ,

ycomy Reg. #7518653b?

Attachments:

1. Description and Assessment of Proposed Change

2. Marked-up Technical Specification Change Commitments made in this letter: None

Serial No: 15-431 Docket No. 50-336 Supplement to TSTF-425, Rev. 3 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 - Millstone Power Station U.S. Nuclear Regulatory Commission One White Flint North, Mail Stop 08 02 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.15-431 Docket No. 50-336 ATTACHMENT 1 Description and Assessment of Proposed Chan qe DOMINION NUCLEAR CONNECTICUT, INC.

MILLSTONE POWER STATION UNIT 2

Serial No.15-431 Docket No. 50-336 Attachment 1, Page 1 of 2 DESCRIPTION AND ASSESSMENT OF PROPOSED CHANGE 1.0

SUMMARY

By letter dated October 22, 2014, Dominion Nuclear Connecticut, Inc. (DNC) submitted a license amendment request (LAR) for Millstone Power Station Unit 2 (MPS2) (Reference 1). In that letter, DNC proposed to modify the technical specifications (TSs) by relocating specific surveillance frequencies to a licensee-controlled program with the adoption of Technical Specification Task Force (TSTF)-425, Revision 3, "Relocate Surveillance Frequencies to Licensee Control - Risk-Informed Technical Specification Task Force (RITSTF) Initiative 5b." Additionally, DNC proposed to add a new program, the Surveillance Frequency Control Program (SFCP), to TS Section 6, Administrative Controls. The proposed changes are consistent with NRC-approved IndustrylTSTF Standard Technical Specifications (STS) change TSTF-425, Revision 3, (ADAMS Accession No. ML090850642). The Federal Register Notice published on July 6, 2009 (74 FR 31996), announced the availability of this TS improvement.

This supplement to the October 22, 2014 LAR revises the proposed change to Table 4.7-2, Item 1 for gross activity determination which was recently identified by DNC to be incomplete.

2.0 DESCRIPTION

OF CHANGE In the October 22, 2014 LAR, DNC proposed to delete the surveillance frequency specified in Table 4.7-2, Item 1, Gross Activity Determination, and replace it with "At the frequency specified in the Surveillance Frequency Control Program." The surveillance frequency was marked-up as shown below.

3 time,,.s. p...er,.d... At the frequency specified in 7,,.,,

1. ctiity Goss eteminaion the Surveillance Frequency Control Program with a maximum time of 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> between samples.

DNC proposes to revise this change as follows:

3 times pr 7, day... with a maximum time" of 72 Deemiain or b..t.een* . ample...-' At the frequency

1. GossActiityspecified in the Surveillance Frequency Control Program.

Serial No.15-431 Docket No. 50-336 Attachment 1, Page 2 of 2 The marked-up TS page for this revised change is provided in Attachment 2. The additional markups shown on this page were proposed changes from the October 22, 2014 LAR and are not being changed.

3.0 TECHNICAL EVALUATION

OF CHANGE The proposed change to TS Table 4.7-2, Item 1, Gross Activity Determination, is being revised to include relocation of the words "with a maximum time of 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> between samples" to the surveillance frequency control program (SFCP). DNC has identified that this statement relates to the surveillance frequency for gross activity determination and should have been proposed for relocation to the SFCP in the October 22, 2014 LAR.

Due to the custom nature of the MPS2 TSs, an equivalent surveillance for gross activity determination does not exist in the standard TSs for Combustion Engineering plants (i.e.

NUREG-1432). For this MPS2 plant-specific surveillance, which is not included in the NUREG-1432 markups provided in TSTF-425, DNC determined that since this surveillance involves a fixed periodic frequency, relocation of this surveillance frequency is consistent with TSTF-425, Revision 3, and with the NRC's model safety evaluation dated July 6, 2009 (74 FR 31996), including the scope exclusions identified in Section 1 .0, "Introduction," of the model safety evaluation.

This revised change is consistent with the proposed change recently approved by the NRC for St. Lucie Units 1 and 2 on June 22, 2015 (Reference 2).

Since the MPS2 TSs are custom TSs, the applicable surveillance requirements and associated TS Bases numbers differ from the STSs presented in NUREG-1432 and TSTF-425, but with no impact on the NRC staff's model safety evaluation dated July 6, 2009 (74 FR 31996).

In accordance with TSTF-425, changes to the frequencies for these surveillances would be controlled under the SFCP.

4.0 REFERENCES

1. DNC Letter dated October 22, 2014, Millstone Power Station Unit 2, License Amendment Request to Relocate TS Surveillance Frequencies to Licensee Controlled Program in Accordance with TSTF-425, Rev. 3 (ADAMS Accession No. ML14301A112).

2. St. Lucie Plant, Unit Nos. 1 and 2 - Issuance of Amendments Regarding Risk-Informed Justifications for the Relocation of Specific Surveillance Frequency Requirements to a Licensee-Controlled Program (TAC Nos. MF3495 and MF3496), dated June 22, 2015 (ADAMS Accession No. ML15127A066).

Serial No.15-431 Docket No. 50-336 ATTACHMENT 2 Marked-up Technical Specification Change DOMINION NUCLEAR CONNECTICUT, INC.

MILLSTONE POWER STATION UNIT 2

Serial No.15-431 Docket No. 50-336 Attachment 2, Page 1 of 1 A .... 4984O IAILE~U SECONDARY COOLANT SYSTEM SPECIFIC ACTIVITY SAPEADAAYI TYPE OF MEASUREMENT MINIMUM AND ANALYSIS FREOUENC

1. Gross Activity Determination

-I"

2. Isotopic Analysis for DOSE a) 1 per 31 days, whenever the EQUIVALENT I- 131 gross activity determination Concentration indicates iodine concentrations greater than 10% of the allowable limit b) t'henever

,w-te.6mo the

/ gross activity determination Sindicates iodine concentrations

/ below 10% of the allowable limit.

d MILLSTONE - UNIT 2 3/4 7-8 MILLSONE UNIT2317-8Amendment No. ,3., +