ML22160A385

Associated Independent Spent Fuel Storage Installations - Revision to Emergency Plan Report of Change

ML22160A385
Person / Time
Site:	Surry, 07200055
Issue date:	06/09/2022
From:	Lawrence D Dominion Energy Virginia, Virginia Electric & Power Co (VEPCO)
To:	Document Control Desk, Office of Nuclear Material Safety and Safeguards, Office of Nuclear Reactor Regulation
References
22-183
Download: ML22160A385 (5)

Text

V I RGINIA ELECTRIC AND POWER COMPANY RICHMOND, VIRGINIA 23261 June 9, 2022 ATTN: Document Control Desk Serial No.: 22-183 U.S. Nuclear Regulatory Commission NRA/ENC: RO Washington, D.C. 20555-0001 Docket Nos.: 50-280/281 72-2/55 License Nos.: DPR-32/37 SNM-2501 VIRGINIA ELECTRIC AND POWER COMPANY (DOMINION ENERGY VI RG INIA)

SURRY POWER STATION UN ITS 1 AND 2 AND ASSOCIATED INDEPENDENT SPENT FU EL STORAGE INSTALLATIONS REVISION TO EMERGENCY PLAN REPORT OF CHANGE Pursuant to 10 CFR 50.54(q)(5) and 10 CFR 72.44(f), a summary of the change analysis for Revision 7 to the Surry Power Station (SPS) Emergency Action Level (EAL) Matrix and Emergency Action Level Technical Bases (EALTB) is provided in the Attachment.

Incorporated by reference, the EAL Matrix and EALTB are part of the SPS Emergency Plan. Revision 7 became effective on May 11, 2022. The revision incorporates changes that did not require prior Nuclear Regulatory Commission approval and do not implement actions that reduce the effectiveness of the SPS Emergency Plan. The Emergency Plan continues to meet the standards of 10 CFR 50.47(b) and Appendix E.

If you have any questions or require additional information, please contact Ms. Erica Combs at (804) 273-3386.

Vice President - Nuclear Engineering & Fleet Support Virginia Electric and Power Company (Dominion Energy Virginia)

Commitments made by this letter: None.

Attachment:

Surry Power Station, Emergency Action Level Matrix and Emergency Action Level Technical Bases, Revision 7, 10 CFR 50.54 Summary

Serial No.: 22-183 Docket Nos.: 50-280/50-281; 72-2172-55 Page 2 of 2 cc: Regional Administrator, Region II U. S. Nuclear Regulatory Commission Marquis One Tower 245 Peachtree Center Avenue, NE, Suite 1200 Atlanta, Georgia 30303-1257 ATTN: Document Control Desk Director, Division of Spent Fuel Management Office of Nuclear Material Safety and Safeguards U.S. Nuclear Regulatory Commission Washington, D.C. 20555-0001 Mr. John Klos NRC Project Manager - Surry Power Station U.S. Nuclear Regulatory Commission Mail Stop 09 E-3 One White Flint North 11555 Rockville Pike Rockville, Maryland 20852-2738 Ms. Yen-Ju Chen NRC Senior Project Manager - ISFSls U.S. Nuclear Regulatory Commission Mail Stop 4B34 Two White Flint North 11545 Rockville Pike Rockville, Maryland 20852-2738 NRC Senior Resident Inspector Surry Power Station

Serial No.: 22-183 Docket Nos.: 50-280/50-281; 72-2ll2-55 ATTACHMENT Surry Power Station Emergency Action Level Matrix and Emergency Action Level Technical Bases Revision 7 10 CFR 50.54 Summary Surry Power Station - Units 1 and 2 Independent Spent Fuel Storage Installations Virginia Electric and Power Company (Dominion Energy Virginia)

Serial No.: 22-183 Docket Nos.: 50-280/281; 72-2/55 Attachment Page 1 of 2 10 C FR 50.54 S UMMARY:

S URRY P OWER S TATION EMERGENCY A CTION LEVEL M ATRIX AND EMERGENCY A CTION L EVEL T ECHNICAL B ASIS, REVISION 7 The current version of the Surry Power Station (SPS) Emergency Plan is Revision 71.

Incorporated by reference, the Emergency Action Level (EAL) Matrix and EAL Technical Basis (EALTB) are part of the Emergency Plan. Revision 7 to the EAL Matrix and EALTB incorporated the changes described below. A summary of why each change was not a reduction in the effectiveness of the Emergency Plan and the regulatory basis for each non-editorial change are provided.

1. EAL Matrix, Table M-5 and Table C-6, "Communication Methods," were revised to replace references to the obsolete "Automatic Ring Down (SONET Ring)" with "Enterprise Transport Network."

The Enterprise Transport Network replaced the obsolete Automatic Ring Down (SONET Ring) communication system. Tables M-5 and C-6 were updated to reference the Enterprise Transport Network. Similar changes were made to the EALTB. This change was previously approved in Revision 67 of the SPS Emergency Plan.

Although the communication system has changed, the system continues to perform the same function for offsite communications. The change continues to meet the regulatory requirements and commitments in 10 CFR 50.47(b)(6) and (b)(4), 10 CFR Part 50 Appendix E, and NUREG-0654/FEMA-REP-1 for communications between the station and other facilities during an emergency.

The resulting changes to the EAL Matrix and EALTB do not change the existing classification scheme, decisions, or capability. Therefore, there is no reduction in the effectiveness of the EAL Matrix or EALTB.

2. EAL Matrix, EAL EU1.1, Table E-1, "ISFSI Cask Surface Dose Rate Limits," was revised to include dose rate limits for the new Extended Optimized Storage -

Horizontal Storage Module (EOS-HSM) dry cask storage system approved for use at SPS.

ISFSI NRC Certificate of Compliance 1042, Amendment 1, "Technical Specifications and SER (EOS-HSM)," issued June 7, 2020, approved the use of the EOS-HSM dry cask storage system at SPS.

Serial No.: 22-183 Docket Nos.: 50-280/281; 72-2/55 Attachment Page 2 of 2 Dose rate limits are listed in Table E-1 for the two (2) other cask models approved for use at the SPS Independent Spent Fuel Storage Installation (ISFSI). Revision 7 added dose rate limits to Table E-1 for the new EOS-HSM cask.

The method used to determine the cask dose rate limits in Table E-1 was approved by NRC endorsed guidance NEI 99-01, Revision 6, and implemented in Revision 6 of the SPS EAL Matrix and EALTB by License Amendments No.

296 and No. 296 for SPS Units 1 and 2, respectively, on December 31, 2019.

This method specifies that the threshold values correspond to two (2) times the external dose rate limits identified in the SPS ISFSI Technical Specifications (TS) and Bases. TS 5.1.2(b) contains the external dose rate limits used.

This change maintains the equivalent ability, timeliness, and criteria to determine, assess, and classify an event involving the ISFSI. All the requirements of the Emergency Plan, 10 CFR 50.47(b)(4), and 10 CFR Part 50 Appendix E continue to be met. The existing classification scheme, decisions, or capability are not changed, therefore there is no reduction in effectiveness of the EAL Matrix or EALTB.

There were no editorial changes associated with Revision 7 to the SPS EAL Matrix and EALTB.