ML23075A073

License Renewal Regulatory Audit Regarding the Environmental Review of the Subsequent License Renewal Application Supplement (EPID Number L-2021-SLE-0002)

ML23075A073
Person / Time
Site:	Oconee
Issue date:	04/05/2023
From:	Lance Rakovan NRC/NMSS/DREFS/ELRB
To:	Snider S Duke Energy Carolinas
References
EPID L-2021-SLE-0002
Download: ML23075A073 (17)

Text

April 5, 2023 Steven M. Snider Site Vice President Oconee Nuclear Station Duke Energy Carolina, LLC 7800 Rochester Hwy Seneca, SC 29672

SUBJECT:

OCONEE NUCLEAR STATION, UNITS 1, 2, AND 3 - LICENSE RENEWAL REGULATORY AUDIT REGARDING THE ENVIRONMENTAL REVIEW OF THE SUBSEQUENT LICENSE RENEWAL APPLICATION SUPPLEMENT (EPID NUMBER. L-2021-SLE-0002)

Dear Steven Snider:

By letter dated November 7, 2022, (Agencywide Documents Access and Management System Package No. ML22311A036), Duke Energy Carolinas, LLC submitted to the U.S. Nuclear Regulatory Commission (NRC) Oconee Nuclear Station Subsequent License Renewal Application, Appendix E, Environmental Report [ER] Supplement 2 pertaining to the subsequent license renewal of Renewed Facility Operating License Nos. DPR-38, DPR-47, and DPR-55 Oconee Nuclear Station, Units 1, 2, and 3 (Oconee), respectively, 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 has initiated the environmental review for the ER supplement. An environmental audit will be conducted remotely by NRC staff during the week of Mary 24, 2023. The environmental audit activities will be conducted in accordance with the enclosed Environmental Audit Plan (Enclosure 1).

To the extent possible, the NRC staff requests the information identified in the Environmental Audit Needs List (Enclosure 2) be made available on the Oconee online reference portal prior to the audit. A draft schedule of tours and meetings is provided in Enclosure 3.

S. Snider If you have any questions, please contact me via email at Lance.Rakovan@nrc.gov.

Sincerely, Signed by Rakovan, Lance on 04/05/23 Lance J. Rakovan Senior Environmental Project Manager Environmental Review License Renewal Branch Division of Rulemaking, Environmental, and Financial Support Office of Nuclear Material Safety and Safeguards Docket Nos. DPR-38, DPR-47, and DPR-55

Enclosures:

As stated cc w/encls: Listserv

ML23075A073 OFFICE NE/PM:ELRB:REFS LA:REFS/ERMB BC:ELRB:REFS NE/PM:ELRB:REFS NAME LRakovan AWalker-Smith TSmith LRakovan DATE 4/4/2023 4/4/2023 4/4/2023 4/4/2023 Audit Plan Subsequent License Renewal Environmental Review Oconee Nuclear Station, Units 1, 2, and 3 April 26-28, 2023 Division of Materials and License Renewal Office of Nuclear Reactor Regulation U.S. Nuclear Regulatory Commission Enclosure 1

2 SUBSEQUENT LICENSE RENEWAL ENVIRONMENTAL AUDIT PLAN OCONEE NUCLEAR STATION, UNITS 1, 2, AND 3

1. Background

By letter dated November 7, 2022, (Agencywide Documents Access and Management System

[ADAMS] Package No. ML22311A036), Duke Energy Carolinas, LLC (Duke Energy) submitted an Environmental Report (ER), supplement 2 (the ER supplement), related to its 2021 application (ML21158A193) for subsequent license renewal of Operating License Nos. DPR-38, DPR-47, and DPR-55 for the Oconee Nuclear Station, Units 1, 2, and 3 (Oconee), respectively, to the U.S.

Nuclear Regulatory Commission (NRC) pursuant to Section 103 of the Atomic Energy Act of 1954, as amended. A Federal Register Notice (87 FR 77643) dated December 19, 2022, noted the receipt and availability of the ER supplement.

The NRC staff is conducting an environmental audit of the Oconee site to improve understanding, to verify information, and to identify information for docketing to support the preparation of the environmental impact statement. Specifically, the NRC staff will be identifying pertinent environmental data, reviewing the facility, and seeking clarifications regarding information provided in the ER.

2. Environmental Audit Bases License renewal requirements for environmental reports are specified in title 10 of the Code of Federal Regulations (10 CFR) part 51, Postconstruction environmental reports. As specified by 10 CFR 51.53(c): Operating license renewal stage, (1) Each applicant for renewal of a license to operate a nuclear power plant under part 54 of this chapter shall submit with its application a separate document entitled "Applicant's Environmental ReportOperating License Renewal Stage." Review guidance for the staff is provided in NUREG-1555, supplement 1, revision 1, Standard Review Plans for Environmental Reviews for Nuclear Power Plants:

Supplement 1 - Operating License Renewal.

On February 24, 2022, the NRC Commission issued three orders that addressed subsequent license renewal (SLR) proceedings for five operating nuclear power plants. Two of these orders, Commission Legal Issuance (CLI)-22-02 (ML22055A496) and CLI-22-03 (ML22055A533),

addressed Oconee. In the orders, the Commission concluded that the NRCs NUREG-1437, revision 1, Generic Environmental Impact Statement for License Renewal of Nuclear PlantsFinal Report (the LR GEIS), which the NRC staff relies on in part to meet its obligations under 10 CFR part 51 and the National Environmental Policy Act (NEPA), did not consider SLR. Therefore, the Commission determined that the NEPA reviews for the affected nuclear power plants, including Oconee, were inadequate because those reviews relied upon the LR GEIS.

In CLI-22-03, the Commission allowed that SLR applicants may submit a revised ER providing information on environmental impacts during the SLR period. In such a submittal, SLR applicants must evaluate the impacts of those environmental issues dispositioned in table B-1 in appendix B to subpart A of 10 CFR part 51 and the LR GEIS as generic (Category 1) issues. The NRC staff would then address the impacts of these issues during the SLR period in site-specific environmental impact statements.

On November 7, 2022, Duke Energy submitted a site-specific environmental report of the impacts of continued operations of Oconee during the SLR period (ML22311A036). That report, which supplemented the environmental report included in Dukes 2021 SLR application, addressed each environmental issue previously dispositioned as a Category 1 issue in the environmental

3 report on a site-specific basis.

In accordance with the CLI-22-03, NUREG-1437, Generic Environmental Impact Statement for License Renewal of Nuclear Plants. During the scoping process specified in 10 CFR part 51, the NRC staff is required to define the proposed action, identify significant issues which must be studied in depth, and to identify those issues that can be eliminated from further study.

3. Environmental Audit Scope The scope of this environmental audit is to identify new and significant issues and issues which can be eliminated from further study. The NRC staff will also identify environmental resources that must be described and evaluated in the Supplemental Environmental Impact Statement.

Audit team members will review the documents and other requested information made available on the Oconee online reference portal Identified on the environmental audit needs list (Enclosure 2) and discuss any questions and additional information needs with the applicants subject matter experts.

4. Information and Other Material Necessary for the Environmental Audit As identified on the environmental audit needs list (Enclosure 2).

5. Environmental Audit Team Members and Resource Assignments The environmental audit team members and their assignments are shown in the table below.

Discipline Team Members Environmental Review Supervisor Ted Smith Environmental Project Manager Lance Rakovan Air Quality Nancy Martinez Aquatic Resources Briana Arlene and Ann Miracle Cumulative Impacts Jeff Rikhoff and Dave Goodman Environmental Justice Nancy Martinez Geologic Environment Lifeng Guo and Phil Meyer Greenhouse Gases/Climate Change Nancy Martinez Groundwater (Hydrology and Hydrogeology) Lifeng Guo and Phil Meyer Historic and Cultural Resources Bob Hoffman Human Health Beth Alferink Land Use and Visual Caroline Hsu and Dave Goodman Meteorology and Climatology Nancy Martinez Noise Nancy Martinez Postulated Accidents Jerry Dozier Replacement Power Alternatives Bob Hoffman Severe Accident Mitigation Alternatives Jerry Dozier Socioeconomics Nancy Martinez and Caitlin Condon Spent Nuclear Fuel Beth Alferink and Caitlin Condon Surface Water Lifeng Guo and Rajiv Prasad Termination of Operations and Beth Alferink

4 Decommissioning Terrestrial (Land Cover and Habitat) Caroline Hsu and Ann Miracle Uranium Fuel Cycle Beth Alferink Waste Management (rad and non-rad) Beth Alferink and Caitlin Condon

6. Logistics The environmental audit will be conducted remotely from April 26-28, 2023. An entrance meeting will be held with plant management at the beginning of the audit and an exit meeting will be held at the end of this audit.

7. Special Requests Duke Energy staff who are subject matter experts in the disciplines identified on the environmental audit needs list should be available for interviews and tours.

8. Deliverables An audit summary report will be issued by NRC staff within 90 days from the end of the environmental audit.

1 Oconee Nuclear Station Units 1, 2 & 3 Audit & Site-Specific Information Needs The U.S. Nuclear Regulatory Commission (NRC) staffs Oconee Nuclear Station Units 1, 2 & 3 (Oconee) site-specific information needs are described below in three categories: tours, meetings, and information needs. Information needs are identified as either resource-specific questions or document requests. Please arrange for the tours and meetings to occur during the virtual environmental audit. Additionally, we ask that you provide responses to the information needs on the electronic portal and make subject matter experts available to discuss these items with the NRC staff.

General Site Tour Please arrange for, and provide appropriate subject matter experts to contribute to, a general site tour at the start of the audit.

Meetings Please schedule breakout meetings with the appropriate subject matter expert(s) and/or contractor(s) concerning the following topics. Those in attendance should be prepared to discuss the corresponding questions as described in the Information Needs and Document Requests section below. The staff intends to use these breakout meetings, as needed, to resolve or clarify any outstanding data needs or questions arising from the environmental audit.

General Topics Air Quality and Noise Aquatic Resources Cumulative Impacts Federally Protected Ecological Resources Groundwater and Surface Water Human Health Postulated Accidents/SAMA Replacement Power Alternatives Socioeconomics Terrestrial Resources Waste Management Information Needs and Document Requests Information needs and document requests are identified below by resource area.

General (All)

The following requests are generic to more than one environmental review area. Issues applicable to these questions are provided below along with the responsible NRC subject matter expert, as appropriate.

GEN-1 Please provide any relevant updates to table 9.1-1. If any permits have expired since Duke Energy's Application for Subsequent Renewed Operating License, dated June 7, 2021 (ML21158A193), please provide the status of those permits and/or renewals.

2 GEN-2 Have there been any documented unplanned releases of radioactive materials (unplanned/ inadvertent radioactive liquid or gaseous releases) since Duke Energys most recent environmental request for additional information (RAI) responses dated January 7, 2022 (ML22019A137)? If so, please provide a written description of the releases and be prepared to discuss these releases in relation to the following environmental issues, which were previously dispositioned as generic (Category 1), as applicable.

Aquatic Resources - Exposure of aquatic organisms to radionuclides (Arlene)

Groundwater - Radionuclides released to groundwater (including unplanned or inadvertent releases to soil and subsurface) (Guo)

Human Health - Radiation exposures to the public (Alferink)

Human Health - Radiation exposures to plant workers (Alferink)

Surface Water Resources - Discharge of metals in cooling system effluent (Guo)

Surface Water Resources - Discharge of biocides, sanitary wastes, and minor chemical spills (Guo)

Terrestrial Resources - Exposure of terrestrial organisms to radionuclides (Arlene)

Uranium Fuel Cycle - Transportation (Alferink)

Waste Management - Low-level waste storage and disposal (Alferink)

Waste Management - Mixed-waste storage and disposal (Alferink)

Waste Management - Offsite radiological impacts of spent fuel and high-level waste disposal (Alferink)

GEN-3 Have there been any reportable inadvertent releases or spills of nonradioactive contaminants since Duke Energys most recent environmental RAI responses dated January 7, 2022? If so, please provide a written description of the releases or spills and be prepared to discuss these releases or spills in relation to the following environmental issues, which were previously dispositioned as generic (Category 1) issues, as applicable.

Aquatic Resources - Effects of nonradiological contaminants on aquatic organisms (Arlene)

Groundwater - Groundwater contamination and use (non-cooling system impacts) (Guo)

Human Health - Human health impacts from chemicals (Alferink)

Surface Water Resources - Discharge of metals in cooling system effluent (Guo)

Surface Water Resources - Discharge of biocides, sanitary wastes, and minor chemical spills (Guo)

Waste Management - Mixed-waste storage and disposal (Alferink)

Waste Management - Nonradioactive waste storage and disposal (Alferink)

Uranium Fuel Cycle - Transportation (Alferink)

3 GEN-4 Is Duke Energy aware of any significant new information that has arisen since Duke Energys Application for Subsequent Renewed Operating License, dated June 7, 2021, that could affect the NRCs assessment of the following site-specific (Category 2) environmental issues.

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

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

Cumulative Impacts (Rikhoff & Arlene)

Environmental Justice - Minority and low-income populations (e.g., subsistence activities) (Martinez)

Groundwater- Groundwater use conflicts (plants that withdraw more than 100 gallons per minute [gpm]) (Guo)

Groundwater- Radionuclides released to groundwater (Guo)

Historic and Cultural Resources - Historic and cultural resources (e.g., new cultural resource surveys, new historic properties, new correspondence with Tribes or the State Historic Preservation Officer) (Hoffman)

Human Health - Microbiological hazards to the public (Alferink)

Human Health - Electric shock hazards (Alferink)

Postulated Accidents - Severe accidents (Dozier)

Special Status Species and Habitats - Threatened, endangered, and protected species and essential fish habitat (Arlene)

Terrestrial Resources - Effects terrestrial resources (non-cooling system impacts) (Arlene)

Topic-specific The following requests are specific to a single environmental review area. If a topic is not provided below, the discussions held in response to the generic requests above are expected to fully cover that topic.

Air Quality and Noise (Nancy Martinez)

Audit Needs AQN-1 Please provide updated estimated air pollutant emissions (2020-present) from operation of permitted sources at Oconee (i.e., SOx, NOx, CO, PM10, and volatile organic compounds).

AQN-2 Please provide updated (2020-present) estimated greenhouse gas emissions (GHG) from operation at Oconee. As part of the response, include a brief discussion of the sources of greenhouse gas emissions and if Duke Energy anticipates additional GHG emission sources and emissions during the subsequent license renewal (SLR) term.

AQN-3 Section 4.2.1.2 of environmental report (ER) supplement 2 (ML22311A036) identifies

4 that two self-identified noncompliance events were reported to the South Carolina Department of Health and Environmental Control (SCDHEC). Please provide copies of the communications (e.g., letters, e-mails) to/from SCDHEC regarding the two noncompliance events.

AQN-4 Have field tests concerning ozone and nitrogen oxides emissions generated by Oconees 230- kV and 525 kV in-scope transmission lines been conducted? If so, please provide a copy of these tests.

AQN-5 Has Duke Energy conducted any offsite noise studies in the vicinity of Oconee? If so, please provide.

Document Needs None Aquatic Resources (Briana Arlene, Ann Miracle)

Audit Needs AQ-1 Has Duke Energy undertaken any aquatic monitoring surveys or studies since the NRCs previous environmental audit in October 2021? If so, please provide copies of the associated reports.

AQ-2 What is the status of Duke Energys 2013 National Pollutant Discharge Elimination System (NPDES) permit renewal application? If Duke Energy has submitted, or SCDHEC has issued, any of the following, please provide copies for NRC staff review.

a. NPDES permit application supplements or updates

b. Draft NPDES permit

c. Permit fact sheet

d. Final NPDES permit

e. Clean Water Act 316(b) best technology available (BTA) determinations on impingement mortality and entrainment Document Needs AQ-3 Please provide a copy of the 2012-2019 interim 316(a) report, which was conducted to determine the effects of Oconees thermal discharge on the aquatic biological community of Lake Keowee, as described in section 4.6.12.2 of ER supplement 2.

AQ-4 Please provide copies of the following site plans and procedures described in section 4.6.18.2 of ER supplement 2:

a. Stormwater pollution prevention plan

b. Spill prevention, control, and countermeasure plan

c. Spill response plan

d. Ground disturbance procedure

5 Cumulative Impacts (Jeff Rikhoff, Dave Goodman)

Audit Needs CI-1 Please provide the name, description, location, and status of any additional past, present, or reasonably foreseeable offsite actions identified since the ER was prepared. Similarly, please provide any updates of actions discussed in the ER as conceptual or for which the need had yet to be determined.

Document Needs CI-2 Any source documentation for information provided in response to CI-1.

Federally Protected Ecological Resources (Briana Arlene)

Audit Needs FPE-1 The U.S. Fish and Wildlife Service (FWS) published a proposed rule to list the tricolored bat (Perimyotis subflavus) as endangered under the Endangered Species Act on September 14, 2022 (87 FR 56381). This species occurs in both Oconee County and Pickens County. Please provide an analysis of the potential impacts of the proposed SLR on this species.

Document Needs FPE-2 U.S. Fish and Wildlife Service. 2019. Letter from T.D. McCoy, Field Supervisor, FWS, to J. Ed Burchfield, Jr., Vice President, Duke Energy.

Subject:

Oconee Nuclear Station Units 1, 2, & 3, License Renewal, Oconee and Pickens Counties, South Carolina, FWS Log No. 2020-TA-0144. November 18, 2019. 6 pp.

Groundwater Resources (Lifeng Guo, Phil Meyer, Rebecka Bence)

Audit Needs GW-1 Please provide groundwater elevation data from the most recent year of monitoring.

Figures 3.6-6a and 3.6-6b from the 2021 ER depict groundwater contours using October 2016 monitoring data. Please either confirm these are the most recent groundwater elevation data contour plots or provide groundwater contour plots using the most recent monitoring data.

GW-2 Please provide groundwater quality data from the most recent year of monitoring, including results for all groundwater constituents or other indicators of groundwater quality (e.g., pH) that were analyzed.

GW-3 Please confirm the dewatering water from the standby shutdown facility has been (and currently is) discharged to the yard drainage system, which then discharges to chemical treatment pond (CTP)-3. Identify where groundwater from recovery well recovery well (RW)-1 has been (and currently is) discharged.

6 GW-4 In section 3.6.3.2 of the 2021 ER, water use information indicates that there is significant domestic use of groundwater in Oconee and Pickens Counties. Please provide information on the source of water for the residences in the vicinity of Oconee, including well construction and geologic formation. Has Duke Energy identified the domestic wells that are closest to the Oconee site?

GW-5 Please provide a copy of the Groundwater Protection Initiative (GPI) Program.

Describe the purpose of each monitoring well on the Oconee site within the context of the GPI Program or with respect to other permits or requirements.

Document Needs GW-6 Please provide the 2021 and 2022 Annual Groundwater Monitoring Report for the Class 2 Landfill - Permit No. 373303-1601.

Human Health (Beth Alferink, Caitlin Condon, Kim Leigh)

Audit Needs HH-1 If there have been any Occupational Safety and Health Administration recordable injuries in 2022 or 2023 to date, please provide details (section 4.9.7.2 of supplement 2).

Document Needs None Postulated Accidents/SAMA (Jerry Dozier)

Audit Needs SAMA-1 Please identify the plant-specific safety improvements that were incorporated into the plant-specific probabilistic risk assessments (PRA) discussed in the ER.

SAMA-2 Please have a person or persons familiar with the Oconee PRAs available for discussion.

Document Needs None Replacement Power Alternatives (Bob Hoffman)

Audit Needs ALT-1 Please confirm the continued validity of (or update, as appropriate) the technical bases presented in Duke Energys June 2021, ER (ML21158A193) and associated

7 correspondence used to support the identification of reasonable replacement power alternatives to renewing the operating license for Oconee.

Document Needs None Socioeconomics (Nancy Martinez, Dave Anderson)

Audit Needs SOC-1: In the 2021 ER (ML21158A193) and response to request for confirmation of information SOC-4 (ML22019A137), Duke reported a permanent workforce of 698 workers and 548 contingent non-outage workers for Oconee. Has there been a change in the number of permanent or non-outage workers since 2020? If so, please provide this information.

SOC-2: Please provide updated Oconee Full-Time Employee Residence Information since October 2020 as shown in Table 2.5-1 of the 2021 ER (ML21158A193) or confirm that the residence information has not changed.

SOC-3: Please provide updated population number and population density within both 20- and 50-mile radius of Oconee using the most recent 2020 census data. The information previously presented in section 3.11.1 of the 2021 ER (ML21158A193) was based on the 2010 census data.

SOC-4: Please confirm if Oconee still uses water from the Seneca water treatment plant for potable water.

SOC-5: If available, please provide Oconee property tax payments to Oconee County for 2022?

SOC-6: In the 2021 ER (ML21158A193) and in response to RAI SOC-1 (ML22019A137), Duke discussed that on December 21, 2020, the South Carolina Administrative Law Court issued a decision and held that Duke Energy is a manufacturer for South Carolina property tax purposes and therefore the property qualifies for a partial manufacturing property tax exemption in South Carolina. Furthermore, the Court ruled that Duke Energy is entitled to the exemption for all of the property used in manufacturing, but property not used in manufacturing is not eligible for the exemption. However, a determination had not been made as to what portion of the property is eligible for the property tax exemption and on October 7, 2021 the Court issued a decision concluding that more evidence is needed to determine what portion of the property qualifies for the exemption and parties are conducting discovery. Provide an update regarding this matter, including if a determination has been made and any anticipated reduction in property tax payments for Oconee.

SOC-7: Section 4.8.2.2 of ER supplement 2 provides tax payments for the years 2020 and 2021. ER supplement 2 goes on to discuss that the tax payment to Oconee County for fiscal year 2020 was lower than other years due to a refund after the appeal to the State of South Carolina (as discussed in section 3.9.5 of the 2021 ER). Table 4.8-2 of ER supplement 2 present property tax adjustment amounts.

8 Clarify if the appeal in section 4.8.2.2 of ER supplement 2 (ML22311A036) and footnote a of table 4.8.2 of ER supplement 2 (ML22311A036) is referring to Duke Energy appealing the State of Carolina tax year fair market assessment of Duke Energy Carolinas and Duke Energy Progress taxable assets.

Table 4.8-2 of the ER supplement 2 (ML22311A036) identifies a $4 million appeals payment. Clarify is this payment was made by Duke Energy to Oconee County and the reason for this payment.

SOC-8: Has there been any changes to the primary road network, rail service, airfields, or state highways with access to Oconee from what is discussed in section 3.1.1 and 3.9.6 of the 2021 ER (ML21158A193)? If so, please provide this updated information.

Document Needs None Surface Water Resources (Lifeng Guo, Rajiv Prasad)

Audit Needs SW-1 The 2021 SLR ER figures 3.6-4 and 3.6-5 provide average intake and discharge temperatures for 2014-2018. Please update the figures with 2019-2021 data or provide intake and discharge temperatures for 2014-2021 in a table.

SW-2 The SLR ER supplement section 4.5.11.2 contains descriptions of two oil spills that occurred between 2014 and 2020 and two sewage spills since 2020. Please provide a description of corrective actions taken following the spills.

Document Needs None Terrestrial Resources (Caroline Hsu, Ann Miracle)

Audit Needs None Document Needs TR-1 Please provide copies of the following documents that were cited in section 4.6.8.2 of ER supplement 2.

A. Shoreline Management Plan B. Avian Protection Plan C. Bird deaths and injury reports between 2014 and May 2022 TR-2 Please provide a copy of the Best Management Practices used to manage impacts on terrestrial resources from transmission corridor management that was mentioned in section 4.6.10.2 of ER supplement 2.

9 Waste Management (Beth Alferink, Caitlin Condon)

Audit Needs WM-1 In section 4.11.5.2 of supplement 2, Duke Energy notes that it is a small quantity hazardous waste generator and an infectious waste generator. Please describe what waste streams at Oconee fall under infectious waste as defined by the State of South Carolina. In addition, please provide an overview of the onsite programs and procedures that govern the hazardous and infectious waste generation programs onsite.

WM-2 Are there any proposed changes or upgrades to the radioactive waste management programs (low-level radioactive waste, spent fuel, mixed waste) being considered during the license renewal term?

Document Needs None

Oconee Nuclear Station Environmental Audit Schedule Wednesday, April 26, 2023 START END ACTIVITY 9:00 am ET 9:30 am ET Entrance meeting between U.S. Nuclear Regulatory Commission (NRC) and Duke Energy Carolinas 9:30 am ET 4:00 pm ET Virtual tours/virtual meetings between NRC and Duke Energy Carolinas subject matter experts (SMEs)

Thursday, April 27, 2023 START END ACTIVITY 9:00 am ET 4:00 pm ET Virtual tours/virtual meetings between NRC and Duke Energy Carolinas SMEs Friday, April 28, 2023 START END ACTIVITY 9:00 am ET 11:00 am ET Virtual tours/virtual meetings between NRC and Duke Energy Carolinas SMEs 11:00 am ET 11:30 am ET Exit meeting between NRC and Duke Energy Carolinas Enclosure 3