ML23346A122

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Annual Non-Radiological Environmental Operating Report - 2023
ML23346A122
Person / Time
Site: Sequoyah  Tennessee Valley Authority icon.png
Issue date: 12/12/2023
From: Marshall T
Tennessee Valley Authority
To:
Office of Nuclear Reactor Regulation, Document Control Desk
References
Download: ML23346A122 (1)


Text

Sequoyah Nuclear Plant, P.O. Box 2000, Soddy Daisy, Tennessee 37384

December 12, 2023

10 CFR 50.4

ATTN: Document Control Desk U.S. Nuclear Regulatory Commission Washington, D.C. 20555-001

Sequoyah Nuclear Plant, Units 1 and 2 Renewed Facility Operating License Nos. DPR-77 and DPR-79 NRC Docket Nos. 50-327 and 50-328

Subject:

Annual Non-Radiological Environmental Operating Report - 2023

The purpose of this letter is to submit the enclosed Sequoyah Nuclear Plant (SQN) 2023 Annual Non-Radiological Environmental Operating Report. The Tennessee Valley Authority is submitting this report in accordance with Section 5.4.1 of Appendix B, Environmental Technical Specifications (Non-Radiological), of the SQN, Units 1 and 2, Renewed Operating Licenses.

This report, which addresses the period from October 1, 2022, through September 30, 2023, is required to be submitted within 90 days following each anniversary of issuance of the operating licenses. Issuance dates for the SQN, Units 1 and 2, Operating Licenses were September 17, 1980, and September 15, 1981, respectively, indicating this report is to be submitted no later than December 15, 2023.

There are no new regulatory commitments in this letter. Please direct questions concerning this report to Rick Medina, Site Licensing Manager, at (423) 843-8129 or rmedina4@tva.gov.

Respectfully,

Marshall, Thomas B. Digitally signed by Marshall, Thomas B. Date: 2023.12.12 10:54:51 -05'00'

Thomas B. Marshall Site Vice President Sequoyah Nuclear Plant

Enclosure:

Tennessee Valley Authority - Sequoyah Nuclear Plant Annual Non-Radiological Environmental Operating Report, October 1, 2022 through September 30, 2023

cc: See page 2 U.S. Nuclear Regulatory Commission Page 2 December 12, 2023

cc (Enclosure):

NRC Regional Administrator - Region II NRC Senior Resident Inspector - SQN NRR Project Manager - SQN Division of Radiological Health - State of Tennessee

ENCLOSURE

Tennessee Valley Authority Sequoyah Nuclear Plant Annual Non-Radiological Environmental Operating Report October 1, 2022 through September 30, 2023 TABLE OF CONTENTS

TABLE OF CONTENTS................................................................................................................ 1

I INTRODUCTION............................................................................................................... 2 

II REPORTING FOR THOSE PROGRAMS NOT CONCERNED WITH WATER QUALITY OR PROTECTION OF AQUATIC BIOTA, WHICH ARE REGULATED BY THE CLEAN WATER ACT..................................................................................................................... 2

III  ENVIRONMENTAL MONITORING PERFORMED........................................................... 3 

IV REPORTS PREVIOUSLY SUBMITTED AS SPECIFIED IN THE SQN NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES) PERMIT......................... 4

V ENVIRONMENTAL TECHNICAL SPECIFICATION (ETS) NONCOMPLIANCES............ 5 

VI CHANGES MADE TO APPLICABLE STATE AND FEDERAL PERMIT CERTIFICATIONS............................................................................................................ 5 

VII CHANGES IN FACILITY DESIGN OR OPERATION........................................................ 5 

VIII NON-ROUTINE REPORTS.............................................................................................. 6 

IX SPECIAL STUDIES.......................................................................................................... 6 

X CHANGES IN APPROVED ENVIRONMENTAL TECHNICAL SPECIFICATION............. 6 

E-1 I INTRODUCTION

The Sequoyah Nuclear Plant (SQN) Annual Non-Radiological Environmental Operating Report for the period of October 1, 2022, through September 30, 2023, has been prepared in accordance with Environmental Technical Specifications (ETS) (Non-Radiological), Appendix B, Section 5.4.1. This report includes a summary of:

A. Reporting for those programs not concerned with water quality or protection of aquatic biota, which are regulated by the Clean Water Act B. Environmental monitoring performed C. Reports previously submitted as specified in the SQN National Pollutant Discharge Elimination System (NPDES) Permit No. TN0026450 D. ETS non-compliances and the corrective actions for remediation E. Changes made to applicable State and Federal permits and certifications F. Changes in station design that could involve a significant environmental impact or change the findings of the Final Environmental Statement (FES)

G. Non-routine reports submitted per ETS Section 4.1 H. Special studies I. Changes in approved ETS

Reporting, monitoring, and inspections conducted as required by permits and regulations indicated no adverse impacts upon the environment as a result of station operation.

II REPORTING FOR THOSE PROGRAMS NOT CONCERNED WITH WATER QUALITY OR PROTECTION OF AQUATIC BIOTA, WHICH ARE REGULATED BY THE CLEAN WATER ACT

A. Third Quarter 2022 Summary of Asbestos Removal Projects - submitted to the Hamilton County Air Pollution Control Bureau on October 3, 2022 B. Annual Asbestos Removal Notification - submitted to Hamilton County Air Pollution Control Bureau on December 5, 2022 C. Fourth Quarter 2022 Summary of Asbestos Removal Projects - submitted to the Hamilton County Air Pollution Control Bureau on January 5, 2023 D. Semi-Annual Auxiliary Boiler Fuel Report - submitted to the Hamilton County Air Pollution Control Bureau on January 5, 2023 E. Annual Construction and Demolition (C&D) Landfill Report - submitted electronically (via email) to Tennessee Department of Environment and Conservation (TDEC) on January 18, 2023 F. Tier Two Emergency and Hazardous Chemical Inventory - submitted to Soddy-Daisy Fire Department, Hamilton County Local Emergency Planning Commission, and the Tennessee Emergency Management Agency (electronically) on February 23, 2023 G. Annual Hazardous Waste Activity Report for 2022 - submitted to the Tennessee Department of Environment and Conservation on February 21, 2023 H. Sequoyah Nuclear Plant Hazardous Waste Minimization Plan - maintained on file at Sequoyah Nuclear Plant since February 21, 2023 I. First Quarter 2023 Summary of Asbestos Removal Projects - submitted to the Hamilton County Air Pollution Control Bureau on April 4, 2023 J. Sequoyah Nuclear Plant Annual Report on the Hours of Operation for diesel permitted equipment - submitted to the Hamilton County Air Pollution Control Bureau (electronically) on May 11, 2023

E-2 K. Forms A and R Toxic Chemical Release Information CY2022 Required by Emergency Planning and Community Right to Know Act (EPCRA) - submitted to the Environmental Protection Agency (EPA) EPCRA Reporting Center and Tennessee Department of Environment and Conservation (electronically) on April 30, 2023 L. Second Quarter 2023 Summary of Asbestos Removal Projects - submitted to the Hamilton County Air Pollution Control Bureau on July 3, 2023 M. Semi-Annual Auxiliary Boiler Fuel Report - submitted to the Hamilton County Air Pollution Control Bureau on July 13, 2023

III ENVIRONMENTAL MONITORING PERFORMED

A. Storm water samples collected at required frequencies and Best Management Practices implemented as required by General Industrial Storm Water Discharge Permit TNR050015 B. Semi-annual facility inspections as required by General Industrial Storm Water Discharge Permit TNR050015 C. Outfall sampling and inspection is performed as required by NPDES Permit TN0026450 (results previously submitted to NRC as required)

D. Monthly erosion and sediment control inspections are conducted as required by General Industrial Storm Water Discharge Permit TNR050015 E. Weekly tank, piping, and secondary containment inspections are performed as required by General Industrial Storm Water Discharge Permit TNR050015 and the Spill Prevention Controls and Countermeasure Plan F. Weekly hazardous waste inspections conducted as required by 40 CFR 262 and by the Tennessee Rule Chapter 0400-12-01, Hazardous Waste Program G. Weekly landfill inspections performed as required by 40 CFR 258 and by the Tennessee Rule Chapter 0400-11-01, Solid Waste Processing and Disposal H. Monthly operational hours of Auxiliary Boilers A and B, Emergency Diesel Generators 1A, 1B, 2A, and 2B, Emergency Flex Generator, and Engines 3A and 3B as required by Federally Enforceable Certificate of Operation Nos. 4150-10200501-08C and 4150-20200102-11C I. Monthly operational hours of Auxiliary Boilers A and B, Emergency Diesel Generators 1A, 1B, 2A, and 2B, Emergency Flex Generator Engines 3A and 3B, High Pressure Diesel Fire Pump, Security Backup Diesel Generator, I/S Diesel Generator, 225 KV Diesel Generators, and Communications Backup Diesel Generators as required by 40 CFR 63 J. Intake fore-bay aeration system sampling, maintenance, and operation performed as required by the State of Tennessee K. Air emissions inspected monthly for equipment permitted by the Hamilton County Air Pollution Control Bureau L. Refrigeration equipment performance and repairs are tracked monthly to ensure compliance with Title VI of the Clean Air Act M. Waste sampling and characterization as required by 40 CFR 261 N. Asbestos removal tracking as required by the Hamilton County Air Pollution Control Bureau O. Hazardous waste minimization (such as chemical control and substitution) as required by the Tennessee Rule Chapter 0400-12-01, Hazardous Waste Program P. National Environmental Policy Act (NEPA) reviews conducted to evaluate potential environmental impact of temporary or permanent facility modifications as required by 40 CFR 1500 Q. Miscellaneous Media Reviews

E-3 IV REPORTS PREVIOUSLY SUBMITTED AS SPECIFIED IN THE SQN NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES) PERMIT

The following reports were submitted as specified in the SQN NPDES Permit No. TN0026450 and General Industrial Discharge Storm Water Permit No. TNR050015.

A. Monthly Discharge Monitoring Report (DMR) for September 2022 with Biomonitoring Report - submitted to Tennessee Department of Environment and Conservation on October 13, 2022 B. Monthly Discharge Monitoring Report for October 2022 - submitted to Tennessee Department of Environment and Conservation on November 15, 2022 C. Monthly Discharge Monitoring Report for November 2022 - submitted to Tennessee Department of Environment and Conservation on December 14, 2022 D. 2022 Annual Stormwater Monitoring Report (SW-17, SW-19, SW-21), submitted to the Tennessee Department of Environment and Conservation on December 21, 2022 E. 2022 Annual Stormwater Monitoring Report (SW-1, SW-16, SW-18), submitted to the Tennessee Department of Environment and Conservation on January 12, 2023 F. Monthly Discharge Monitoring Report for December 2022 - submitted to Tennessee Department of Environment and Conservation on January 12, 2023 G. 2022 Biocide/Corrosion Treatment Plan (B/CTP) Annual Report - submitted to Tennessee Department of Environment and Conservation on January 12, 2023 H. Monthly Discharge Monitoring Report for January 2023 - submitted to Tennessee Department of Environment and Conservation on February 14, 2023 I. 2022 Water Withdrawal Registration Forms - submitted to Tennessee Department of Environment and Conservation on February 15, 2023 J. Monthly Discharge Monitoring Report for February 2023 - submitted to Tennessee Department of Environment and Conservation on March 14, 2023 K. Monthly Discharge Monitoring Report for March 2023 - submitted to Tennessee Department of Environment and Conservation on April 13, 2023 L. 2023 Annual Stormwater Monitoring Report (SW-2, SW-3, SW-4, SW-6, SW-8, SW-9, SW-13), submitted to the Tennessee Department of Environment and Conservation on April 27, 2023 M. Monthly Discharge Monitoring Report for April 2023 - submitted to Tennessee Department of Environment and Conservation on May 11, 2023 N. 2023 Annual Stormwater Monitoring Report (SW-1, SW-16, SW-17, SW-18, SW-19, SW-21), submitted to the Tennessee Department of Environment and Conservation on June 12, 2023 O. Monthly Discharge Monitoring Report for May 2023 with Biomonitoring Report -

submitted to Tennessee Department of Environment and Conservation on June 12, 2023 P. Monthly Discharge Monitoring Report for June 2023 - submitted to Tennessee Department of Environment and Conservation on July 13, 2023 Q. Monthly Discharge Monitoring Report for July 2023 - submitted to Tennessee Department of Environment and Conservation on August 15, 2023 R. Monthly Discharge Monitoring Report for August 2023 - submitted to Tennessee Department of Environment and Conservation on September 14, 2023

E-4 V ENVIRONMENTAL TECHNICAL SPECIFICATION (ETS) NONCOMPLIANCES

None.

VI CHANGES MADE TO APPLICABLE STATE AND FEDERAL PERMIT CERTIFICATIONS

None.

VII CHANGES IN FACILITY DESIGN OR OPERATION

In accordance with ETS 5.3.C, facility design and operational changes were reviewed for potential effect on the environment. These reviews are completed per Tennessee Valley Authority Instruction IX Environmental Review in compliance with the National Environmental Policy Act and with TVAs Environmental Management System (EMS) procedure.

A. Tests and Experiments

There were no tests or experiments conducted during this period that had an unreviewed environmental question of significant impact.

B. Design and Operational Changes

The facility design and operational changes made during this reporting period with a potential impact on the environment were found to be within the scope of existing permits and in compliance with environmental regulations. Those changes reviewed are as follows:

Environmental Assessments

None.

Categorical Exclusion Checklists (CEC)

CEC 46413 Engineering Change Package (ECP) SQN-20-1891 will remove the old Traveling Water Screens at Sequoyah Nuclear Plant (SQN) and install new screens, a debris trough, a fish trough and trough supports and screen wash flow for the new troughs on the intake, install a fish return line exiting the east side of the intake and returning the fish via an fish return trough to the reservoir to prevent re-impingement.

CEC 50618 The project proposes removing (clear and grub) all trees within 300 meters of the meteorological (met) tower at Sequoyah Nuclear Plant (SQN) to comply with NRC regulatory guidance. The cleared area will be seeded with native plant species to support ecological diversity.

E-5 VIII NON-ROUTINE REPORTS

None.

IX SPECIAL STUDIES

None.

X CHANGES IN APPROVED ENVIRONMENTAL TECHNICAL SPECIFICATION

There were no changes in approved ETSs during this period.

E-6