ML23081A528

Request for Additional Information - North Anna Subsequent License Renewal Application Environmental Review

ML23081A528
Person / Time
Site:	North Anna
Issue date:	04/26/2023
From:	Tam Tran NRC/NMSS/DREFS/ELRB
To:	Stoddard D Virginia Electric & Power Co (VEPCO)
References
Download: ML23081A528 (6)

Text

April 26, 2023 Daniel G. Stoddard Senior Vice President and Chief Nuclear Officer Innsbrook Technical Center 5000 Dominion Blvd Glen Allen, VA 23060

SUBJECT:

REQUEST FOR ADDITIONAL INFORMATION - NORTH ANNA SUBSEQUENT LICENSE RENEWAL APPLICATION ENVIRONMENTAL REVIEW (EPID NUMBER: L-2020-SLE-0000) (DOCKET NUMBERS: 50-338 AND 50-339)

Dear Daniel Stoddard:

By letters dated August 24, 2020 (Agencywide Documents Access and Management System ML20246G703), Dominion Energy submitted an application for subsequent license renewal of Renewed Facility Operating License Nos. NPF-4 and NPF-7 for the North Anna Power Station, Unit Nos. 1 and 2 to the U.S. Nuclear Regulatory Commission (NRC) pursuant to section 103 of the Atomic Energy Act of 1954, as amended, and part 54 of title 10 of the Code of Federal Regulations, Requirements for renewal of operating licenses for nuclear power plants.

The NRC staff is reviewing the information contained in the subsequent license renewal application and has identified, in the enclosure, areas where additional information is needed to complete the review.

This request for additional information was discussed with Ellery Baker of your staff on March 16, 2023, and a date for the response is no later than 30 days from the date of this letter.

D. Stoddard 2 If you have any questions, please contact Tam Tran via email at Tam.Tran@nrc.gov.

Sincerely, Signed by Smith, Theodore on 04/26/23 Theodore Smith, Chief Environmental Review License Renewal Branch Division of Rulemaking, Environmental, and Financial Support Office of Nuclear Material Safety and Safeguards Docket Nos. 50-338 and 50-339

Enclosure:

As stated cc w/encl: Listserv

REQUEST FOR ADDITIONAL INFORMATION OFFICE OF NUCLEAR MATERIAL SAFETY AND SAFEGUARDS North Anna Power Station Subsequent License Renewal GEN-1 RAI:

REQUIREMENT: Title 10 of the Code of Federal Regulations (10 CFR) section 51.53(c)(3)(iv) requires that environmental reports contain any new and significant information regarding the environmental impacts of license renewal of which the applicant is aware.

ISSUE: In August 2021, the U.S. Nuclear Regulatory Commission (NRC) staff issued Generic Environmental Impact Statement for License Renewal of Nuclear Plants, Supplement 7, Second Renewal, Regarding Subsequent License Renewal for North Anna Power Station Units 1 and 2, Draft Report for Comment (draft Supplemental Environmental Impact Statement (DSEIS))

(Agencywide Documents Access and Management System ADAMS ML21228A084). The NRC staff is now preparing a site-specific environmental impact statement (EIS) in accordance with Commission Legal Issuance (CLI)-22-02 and CLI-22-03, both dated February 24, 2022, that considers the site-specific environmental impacts of subsequent license renewal (SLR) of North Anna. Table B-2 of the DSEIS, Operating Permits and Other Requirements, lists the permits and licenses issued by Federal, State, and local authorities for activities at North Anna, as identified in chapter E.9 of Virginia Electric and Power Company (Dominion) environmental report, dated August 2020 (ADAMS ML20246G698). As part of preparing the site-specific EIS, the staff must consider whether there have been any changes to operating permits or other requirements following the issuance of the DSEIS that could affect the conclusions made in the DSEIS.

REQUEST: Please provide any relevant updates to table B-2 of the DSEIS that have transpired since the NRC issued it in August 2021. If any permits have expired since submittal of the SLR application to the NRC, please provide the status of those permits and/or renewals.

GEN-3 RAI:

REQUIREMENT: 10 CFR 51.53(c)(3)(iv) requires that environmental reports contain any new and significant information regarding the environmental impacts of license renewal of which the applicant is aware.

ISSUE: In August 2021, the NRC staff issued the DSEIS. The NRC staff is now preparing a site-specific EIS that considers the site-specific environmental impacts of North Anna SLR on generic (Category 1) license renewal issues in accordance with CLI-22-02 and CLI-22-03. As part of preparing this site-specific EIS, the staff must consider whether any significant new information has arisen following the issuance of the DSEIS that could affect the conclusions made in the DSEIS.

REQUEST: Please provide dates, quantities, and references for any reportable inadvertent releases or spills of nonradioactive contaminants since Dominions Environmental Report, Supplement 1, dated September 28, 2022 (ADAMS ML22272A041), as discussed during the most recent audit held March 7 and 8, 2023. In your response, please include a description of the releases or spills and a summary of whether or not these releases or spills impact Enclosure

conclusions presented in the supplement in relation to the following environmental issues, which were previously dispositioned as Category 1 issues in the DSEIS, as applicable.

Aquatic Resources - Effects of non-radiological contaminants on aquatic organisms Groundwater Resources - Groundwater contamination and use (non-cooling system impacts)

Human Health - Human health impacts from chemicals Surface Water Resources - Discharge of metals in cooling system effluent Surface Water Resources - Discharge of biocides, sanitary wastes, and minor chemical spills Waste Management - Mixed-waste storage and disposal Waste Management - Nonradioactive waste storage and disposal GEN-4 RAI:

REQUIREMENT: 10 CFR 51.53(c)(3)(iv) requires that environmental reports contain any new and significant information regarding the environmental impacts of license renewal of which the applicant is aware.

ISSUE: In August 2021, the NRC staff issued the DSEIS. The NRC staff is now preparing a site-specific EIS that considers the site-specific environmental impacts of North Anna SLR on license renewal issues in accordance with CLI-22-02 and CLI-22-03. As part of preparing this site-specific EIS, for those license renewal issues for which the NRC staff performed a site-specific analysis and made site-specific conclusions in the DSEIS (i.e., Category 2 issues), the staff must consider whether any significant new information has arisen following the issuance of the DSEIS that could affect those analyses or result in the staff coming to different conclusions in the site-specific EIS.

REQUEST: Is Dominion aware of any significant new information that has arisen following the issuance of the DSEIS in August 2021 that could affect the conclusions made in that document concerning the following Category 2 environmental issues? If so, please describe the significant new information and explain how that information affects DSEIS conclusions. The relevant Category 2 issues are as follows:

Groundwater- Radionuclides (e.g., tritium and plant-related gamma isotopes or hard-to-detect radionuclides) released to groundwater Terrestrial Resources - Effects terrestrial resources (non-cooling system impacts)

Aquatic Resources - Impingement and entrainment of aquatic organisms (plants with once-through cooling systems or cooling ponds)

Aquatic Resources - Thermal impacts on aquatic organisms (plants with once-through cooling systems or cooling ponds)

Special Status Species and Habitats - Threatened, endangered, and protected species and essential fish habitat Historic and Cultural Resources - Historic and cultural resources (e.g., new cultural resource surveys, new historic properties)

Human Health - Microbiological hazards to the public

Human Health - Electric shock hazards Postulated Accidents - Severe accidents Environmental Justice - Minority and low-income populations (e.g., subsistence activities)

Cumulative Impacts AQN-1 RAI:

REQUIREMENT: 10 CFR 51.53(c)(3)(iv) requires that environmental reports contain any new and significant information regarding the environmental impacts of license renewal of which the applicant is aware.

ISSUE: In 2021, the NRC staff issued the DSEIS, which analyzed greenhouse gas emissions and climate change impacts. The NRC is now preparing a site-specific environmental impact statement in accordance with Commission Legal Issuance (CLI) 02 and CLI-22-03, both dated February 24, 2022, that considers the site-specific environmental impacts of subsequent license renewal (SLR) of North Anna on those issues dispositioned as generic (Category 1) issues in table B-1 in appendix B to subpart A of 10 CFR part 51 and the DSEIS. As part of preparing this site-specific EIS, the staff must consider whether any significant new information has arisen following the issuance of the DSEIS.

REQUEST: Provide updated (2017-present) estimated greenhouse gas emissions (GHG) from operation at North Anna. As part of the response include the following:

for each year of estimated GHG emissions, provide the breakdown of each source that contributed to the annual total emissions and include the supporting calculations.

as discussed during the environmental audit, Air Quality and Noise breakout session, and in response to information need AQN-3, the reason that 2022 annual GHG emissions were greater than prior years.

identify if Dominion anticipates additional GHG emission sources and emissions during the SLR term.

AQN-2 RAI:

REQUIREMENT: 10 CFR 51.53(c)(3)(iv) requires that environmental reports contain any new and significant information regarding the environmental impacts of license renewal of which the applicant is aware.

ISSUE: In 2021, the NRC staff issued the DSEIS, which analyzed greenhouse gas emissions and climate change impacts. The NRC is now preparing a site-specific environmental impact statement in accordance with Commission Legal Issuance (CLI) 02 and CLI-22-03, both dated February 24, 2022, that considers the site-specific environmental impacts of subsequent license renewal (SLR) of North Anna on those issues dispositioned as generic (Category 1) issues in table B-1 in appendix B to subpart A of 10 CFR part 51 and the DSEIS.

REQUEST: Provide updated estimated air pollutant emissions (2018-present) from operation of permitted sources at North Anna (i.e., SOx, NOx, CO, PM10, and VOCs).

ML23081A528 *concurrence via email LA:NMSS:REFS* BC:NRR:DNRL* BC:NMSS:REFS*

OFFICE PM:NMSS:REFS* OGC (RAI)

(LTR) (RAI)

NAME TTran AWalker-Smith LGibson MCarpentier TSmith DATE 03/23/2023 04/04/2023 04/04/2023 4/25/2023 4/26/2023