Letter Sequence Request |
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Initiation
- Request, Request, Request, Request, Request, Request, Request, Request, Request
- Acceptance, Acceptance, Acceptance, Acceptance, Acceptance, Acceptance
- Supplement
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MONTHYEARLR-N20-0010, License Amendment Request to Exclude the Dynamic Effects of Specific Postulated Pipe Ruptures from the Design and Licensing Basis Based on Leak-Before-Break Methodology2020-04-24024 April 2020
License Amendment Request to Exclude the Dynamic Effects of Specific Postulated Pipe Ruptures from the Design and Licensing Basis Based on Leak-Before-Break Methodology
Project stage: Request
ML20302A2012020-10-22022 October 2020
NRR E-mail Capture - Surry Power Station, Units 1 and 2 - Acceptance Review (L-2020-LLA-0219)
Project stage: Acceptance Review
ML20296A6232020-10-22022 October 2020
Request for NRC Approval to Apply Leak-Before-Break Methodology to Reactor Coolant System Branch Piping
Project stage: Request
ML20338A5422020-12-0303 December 2020
Proposed License Amendment Request, Update of the Loss of Coolant Accident Alternate Source Term Dose Analysis
Project stage: Request
ML20346A1032020-12-11011 December 2020
NRR E-mail Capture - Surry Power Station, Units 1 and 2 LBB LAR - Acceptance Review (L-2020-LLA-0255)
Project stage: Acceptance Review
ML20364A0172020-12-28028 December 2020
NRR E-mail Capture - Surry Power Station, Units 1 and 2 AST LAR - Acceptance Review (L-2020-LLA-0258)
Project stage: Acceptance Review
ML21084A2732021-03-24024 March 2021
License Amendment Request - Application of Leak-Before-Break Methodology to Reactor Coolant System Branch Piping - Response to Request for Additional Information and Clarification
Project stage: Response to RAI
ML21127A1362021-05-13013 May 2021
May 13, 2021 NRC Pre-Submittal Meeting - Surry Power Station New Fuel Storage and Spent Fuel Pool Criticality Analysis Proposed License Amendment Request
Project stage: Meeting
ML21133A4212021-05-13013 May 2021
Response to NRC Request for Additional Information Regarding Proposed License Amendment Request Update of LOCA Alternative Source Term Dose Analysis
Project stage: Response to RAI
ML21270A0232021-07-0707 July 2021
State of Virginia Notification of Pending Amendment Issuance Ref: Surry Power Station, Units 1 and 2 - Request to Revise Technical Specifications 2.1.A.1.b
Project stage: Other
ML21175A1852021-08-20020 August 2021
Issuance of Amendment Nos. 304 and 304 Leak-Before-Break for Pressurizer Surge, Residual Heat Removal, Safety Injection Accumulator, Reactor Coolant System Bypass and Safety Injection Lines
Project stage: Approval
ML21272A0622021-09-28028 September 2021
NRR E-mail Capture - (External_Sender) Surry Fuel Melt Safety Limit (SL) LAR Question
Project stage: Other
ML21277A0652021-09-30030 September 2021
Proposed License Amendment Request Removal of Refueling Water Chemical Addition Tank and Replacement of Containment Sump Buffer
Project stage: Request
ML21286A7372021-10-13013 October 2021
Additional Element Included in the Implementation Plan for the Surry Fuel Melt Safety Limit (SL) LAR
Project stage: Request
ML21292A3022021-10-19019 October 2021
Response to Question on License Amendment Request to Revise Reactor Core Safety Limit
Project stage: Request
ML21294A3382021-10-21021 October 2021
Proposed Amendment to Relocate Unit Staff Qualification Requirements from Technical Specifications to Nuclear Facility Quality .
Project stage: Request
ML21188A1742021-10-26026 October 2021
Issuance of Amendment Nos. 305 and 305 Revised Reactor Core Safety Limit to Reflect Topical Report WCAP-177642-P-A, Revision 1
Project stage: Approval
ML21307A4302021-11-0909 November 2021
Supplemental Information Needed for Acceptance of Requested Licensing Action Surry Post LOCA Buffer Change
Project stage: Acceptance Review
ML21253A0632021-11-19019 November 2021
Issuance of Amendment Nos. 306 and 306 to Update of the Loss of Coolant Accident Alternate Source Term Dose Analysis
Project stage: Approval
ML21326A1502021-11-22022 November 2021
NRR E-mail Capture - Acceptance Review for Relocation of Unit Staff Requirements to the QAPD LAR (L-2021-LLA-0195)
Project stage: Acceptance Review
ML21334A1692021-11-29029 November 2021
Proposed License Amendment Request Removal of Refueling Water Chemical Additional Tank and Replacement of Containment Buffer Supplemental Information
Project stage: Supplement
ML21340A1642021-12-0606 December 2021
Acceptance of Requested Licensing Action Amendment
Project stage: Acceptance Review
ML22004A2872022-01-14014 January 2022
Technical Specification Section 3.4.A.4 Change of Post Loss-of-Coolant Accident Chemical Buffer Audit Plan
Project stage: Other
ML22077A0542022-03-18018 March 2022
Change in Engineering Hours Estimate Surry Ph Buffer LAR Acceptance
Project stage: Approval
ML22089A0092022-04-13013 April 2022
Regulatory Audit Summary Related to the License Amendment Request to Change Loss-Of-Coolant Accident Chemical Buffer
Project stage: Other
ML22153A1352022-06-0202 June 2022
Proposed License Amendment Request (LAR) - Removal of Refueling Water Chemical Addition Tank and Replacement of Containment Sump Buffer - Response to Request for Additional Information
Project stage: Response to RAI
ML22164A8532022-06-13013 June 2022
Proposed License Amendment Request Removal of Refueling Water Chemical Addition Tank and Replacement of Containment Sump Buffer - Response to Request for Confirmation
Project stage: Request
ML22164A9252022-06-13013 June 2022
Page Substitutions to ADAMS Accession Number ML21294A338
Project stage: Request
ML22095A1072022-07-11011 July 2022
Issuance of Amendment Nos. 120, 344, & 284, 293 & 276, & 307 & 307 to Relocate Requirements to the QAPD
Project stage: Approval
ML22193A2952022-08-26026 August 2022
Issuance of Amendment Nos. 308 and 308 License Amendment Request for Removal of the Refueling Water Chemical Addition Tank and Containment Sump, Ph Buffer Change and Safety Evaluation
Project stage: Approval
ML22250A6672022-10-12012 October 2022
Correction to Issuance of Amendment Nos. 304 (EPID L-2020-LLA-0255), 305 (EPID L-2020-LLA-0219) 306 (EPID L-2020-LLA-0258), 307 (EPID L-2021-LLA-0195) and 308
Project stage: Approval
2021-12-06
[Table View] |
Similar Documents at Surry |
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Text
VIRGINIA ELECTRIC AND POWER COMPANY RICHMOND, VIRGINIA 23261 June 13, 2022 10 CFR 50.90 U. S. Nuclear Regulatory Commission Attention: Document Control Desk Washington, DC 20555-0001 Serial No.:
22-191 VIRGINIA ELECTRIC AND POWER COMPANY SURRY POWER STATION UNITS 1 AND 2 PROPOSED LICENSE AMENDMENT REQUEST NRA/GDM:
RO Docket Nos.:
50-280/281 License Nos.: DPR-32/37 REMOVAL OF REFUELING WATER CHEMICAL ADDITION TANK AND REPLACEMENT OF CONTAINMENT SUMP BUFFER RESPONSE TO REQUEST FOR CONFIRMATION By letter dated September 30, 2021 (ADAMS Accession No. ML21277A065), Virginia Electric and Power Company (Dominion Energy Virginia) submitted a license amendment request (LAR) for Surry Power Station (SPS) Units 1 and 2 to eliminate the Refueling Water Chemical Addition Tank (CAT) and to allow the use of sodium tetraborate decahydrate (NaTB) to replace sodium hydroxide (NaOH) as a chemical additive (buffer) for containment sump pH control following a loss-of-coolant accident (LOCA). By letter dated November 29, 2021 (ADAMS Accession No. ML21334A169), Dominion Energy Virginia submitted supplemental information in support of the LAR.
By email dated May 27, 2022, the NRC requested confirmation that the proposed LAR does not involve a change to the containment analysis that would necessitate a change to the environmental qualification (EQ) temperature envelope against which equipment qualification is performed. Dominion Energy Virginia's response to the email request is provided below.
Dominion Energy Virginia Response The current containment EQ temperature and pressure profiles are formally evaluated against the applicable analysis of record and documented in an engineering calculation.
Both the EQ temperature and pressure profiles fully bound the most limiting containment temperature and pressure results of the large break loss of coolant accident (LBLOCA),
small break LOCA (SBLOCA), and main steam line break (MSLB) containment analyses.
No updates to the containment analyses were necessary as a result of the LAR because:
The containment analyses do not credit the volume of the CAT, and The increase in passive heat sink due to the addition of the NaTB baskets is bounded by current inventory design input and assumptions for the containment analyses.
In summary, since no changes to the containment analyses were required as a result of this activity, there are no changes to the existing EQ envelopes for pressure and temperature.
Serial No.22-191 Docket Nos. 50-280/281 Page 2 of 3 Should you have any questions or require additional information, please contact Mr. Gary D. Miller at (804) 273-2771.
Respectfully, Doug las C. La r nee Vice President - Nuclear Engineering and Fleet Support Commitments contained in this letter: None COMMONWEAL TH OF VIRGINIA COUNTY OF HENRICO The foregoing document was acknowledged before me, in and for the County and Commonwealth aforesaid, today by Mr. Douglas C. Lawrence, who is Vice President - Nuclear Engineering and Fleet Support, of Virginia Electric and Power Company. 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 /3-tl, day of :I;°V\\e.,.
My Commission Expires: Q:::JI.J.Yf,if,, zoz ~.
, 2022.
cc:
U.S. Nuclear Regulatory Commission - Region II Marquis One Tower 245 Peachtree Center Avenue, NE Suite 1200 Atlanta, GA 30303-1257 Mr. L. John Klos NRC Project Manager - Surry U.S. Nuclear Regulatory Commission One White Flint North, Mail Stop 09 E-3 11555 Rockville Pike Rockville, MD 20852-2738 Mr. G. Edward Miller NRC Senior Project Manager - North Anna U.S. Nuclear Regulatory Commission One White Flint North, Mail Stop 09 E-3 11555 Rockville Pike Rockville, MD 20852-2738 NRC Senior Resident Inspector Surry Power Station State Health Commissioner Virginia Department of Health James Madison Building - 7th floor 109 Governor Street Suite 730 Richmond, VA 23219 Serial No.22-191 Docket Nos. 50-280/281 Page 3 of 3
