ML20304A432

Tennessee Multi-Sector Permit (Tmsp), Annual Stormwater Monitoring Report

ML20304A432
Person / Time
Site:	Sequoyah
Issue date:	10/29/2020
From:	Markum T Tennessee Valley Authority
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
SW-1, SW-13, SW-18, SW-19, SW-21, SW-8
Download: ML20304A432 (9)

Text

Tennessee Valley Authority, Sequoyah Nuclear Plant, P.O. Box 2000,SoddyOaisy, TN37384 October 29, 2020 ATTN: Document Control Desk U.S. Nuclear Regulatory Commission Washington, D.C. 20555-0001

Subject:

Sequoyah Nuclear Plant, Tennessee Multi-Sector Permit (TMSP), Annual Stormwater Monitoring Report for SW-1, SW-8, SW-13, SW-18, SW-19, and SW-21 Attached isthe 2020 Annual Stormwater Monitoring Report for outfalls SW-1, SW-8 SW-13 SW-18, SW-19, and SW-21 for Sequoyah Nuclear Plant, which includes the 30- and 60-day' letterrequirements to satisfy narrative conditions Section 4.3 ofthe TMSP.

Respectfully, Travis R. Markum Environmental Scientist

Tennessee Valley Authority, Post Office Box 2000, Soddy Daisy, Tennessee 37384-2000 October 28, 2020 Chattanooga Environmental Field Office Division of Water Resources 1301 Riverfront Parkway, #206 Chattanooga, Tennessee 37402-2013 TENNESSEE VALLEY AUTHORITY - SEQUOYAH NUCLEAR PLANT - TENNESSEE MULTI-SECTOR GENERAL PERMIT (TMSP) PERMIT NO. TNR050015 SECTOR O -

EXCEEDANCE OF BENCHMARK MONITORING REQUIREMENT Stormwater outfall SW-1 was sampled for iron during a qualifying rain event on September 24, 2020. Analytical result for the iron concentration that exceeded the benchmark value of 5 mg/L is summarized in Table 1 below.

Table 1. Total Recoverable Iron Results Storm Water Sample Date Analytical Analytical Benchmark Outfall Number Results Results Concentration Received by (mg/L) (mg/L)

TVA 1 09/24/2020 10/02/2020 8.72 5.0 This letter serves as the 30- and 60-day notifications of benchmark exceedances for total iron.

30-Day Requirement As required by the permit, the drainage area for Outfall 1was inspected to determine the likely cause(s) of the exceedance. The following potential issue was identified:

• Outfall SW-1. This outfall is located downhill from a stretch where the stone along the driving area has either been worn down or washed out. In addition, there is a sizeable area where perennial vegetation has not returned and created a bare area.

60-Day Requirement The Storm Water Pollution Prevention Plan (SWPPP) has been reviewed to identify potential changes to reduce the iron concentrations at outfall SW-1. Description of the proposed corrective actions and corresponding timetable for completion is shown in Table 2.

Chattanooga Environmental Field Office Page 2 October 28, 2020 Table 2. Description of Corrective Actions and Timetable for Completion Outfall Corrective actions to reduce iron concentration Target Implementation Date SW-1 Stabilize disturbed soil areas within this drainage footprint by the 12/31/20 addition of stone along the driving area and by applying seed and straw to adjacent bare areas.

If you have questions or need additional information, please contact Travis Markum by phone at (423) 843-6714 or by e-mail at trmarkum@tva.gov.

/ certify underpenalty oflaw that this document and all attachments were prepared under my direction or supervision in accordance with a system designed to assure that qualified personnel properly gather and evaluate the information submitted. Based on my inquiry ofthe person or persons who manage the system, or those persons directly responsible for gathering the information, the information submitted is, to the best ofmy knowledge and belief, true, accurate and complete. Iam aware that there are significant penalties for submitting false information including the possibility offine and imprisonment for knowing violations.

Sincerely, Scott W. Huhnewell Interim Site Vice President Sequoyah Nuclear Plant cc U.S. Nuclear Regulatory Commission Attn: Document Control Desk Washington, DC 20555

Tennessee Department of Environment and Conservation Division of Water Resources William R. Snodgrass Tennessee Tower 312 Rosa L. Parks Avenue, 11th Floor, Nashville, Tennessee 37243 ANNUAL STORMWATER MONITORING REPORT for Stormwater Discharges Associated with Industrial Activity under the TENNESSEE MULTI-SECTOR GENERAL PERMIT (TMSP)

Facility Name: TVA - Sequoyah Nuclear Plant TMSP Number: TNR050015 Contact Person: Travis Markum Phone Number: 423-843-6714 This report is submitted for the following calendar year (e.g. 2015): 2019 Outfall Number: SW 1 Listall TMSP sectors which apply to discharge from this outfall: 0 Sample Date: 09/24/2020 Low Concentration Waiver (Note 3): list all parameters for which the facility is certifying that there has not been a significant change in industrial activity or the pollution prevention measures in the area ofthe facility thatdrains to the outfall for which sampling was waived:

DIRECTIONS: In the spaces below, provide the results ofstormwater monitoring for the designated outfall. For each outfall, one Annual Stormwater Monitoring Report must be submitted. The parameters for which monitoring must be conducted depend on which industry sector(s) of the TMSP applies to the discharge. Look up your sector(s) in the TMSP and analyze for the parameters that apply. If parameter is not listed below, submit additional sheets. All samples should be grab.

Cut-off Annual Cut-off Annual Parameter Cone. Sample Parameter (continued) Cone. Sample (mg/L) Result (mg/L) (mg/L) Result (mg/L)

Aluminum, Total 0.75 Magnesium, Total 0.0636 Ammonia 4.0 Mercury, Total 0.0024 Arsenic, Total 0.16854 Nickel, Total 0.875 BOD, 5-Day 30 Nitrate + Nitrite Nitrogen 0.68 Cadmium, Total 0.0159 Oil and Grease 15 COD 120 PH 5.0-9.0 Copper, Total 0.018 Phosphorus, Total (as P) 2.0 Cyanide, Total 0.064 Selenium, Total 0.2385 Fluoride 1.8 Silver, Total 0.032 Iron, Total 5.0 8.72 Total Suspended Solids 150 Lead, Total 0.15 Zinc, Total 0.395 CERTIFICATION AND SIGNATURE: (Make all entries in ink, not with a pencil. This report must be signed by a responsible corporate officer for a corporation, a general partner for a partnership, the proprietor for a sole proprietorship or a principal executive officer or ranking elected official for a public agency.)

Icertify under penalty of law that this document and all of its attachments were prepared under my direction or my supervision in accordance with a system designed to assure qualified personnel properly gathered and evaluated the information submitted. Based on my inquiry of the person or persons who manage the system, or those persons directly responsible for gathering the information, the information submitted is, to the best of my knowledge and belief, true, accurate and complete I am aware there are significant penalties for submitting false information, including the possibility of fine and imprisonment for knowing violations. As specified in Tennessee Code Annotated Section 39-V^02(a)(4), this declaration is made under penalty of perjury Scott W. Hunnewel Printed Name CN-l 115 (Rev 10/18) Page 1 of 2 RDA2366

Tennessee Department of Environment and Conservation Division of Water Resources William R. Snodgrass Tennessee Tower 312 Rosa L. Parks Avenue, 11th Floor, Nashville, Tennessee 37243 ANNUAL STORMWATER MONITORING REPORT for Stormwater Discharges Associated with Industrial Activity under the TENNESSEE MULTI-SECTOR GENERAL PERMIT (TMSP)

Facility Name: TVA - Sequoyah Nuclear Plant TMSP Number: TNR050015 Contact Person: Travis Markum Phone Number: 423-843-6714 This report is submitted for the following calendar year (e.g. 2015): 2019 Outfall Number: SW8 List all TMSP sectors which apply to discharge from this outfall: 0 Sample Date: 09/24/2020 Low Concentration Waiver (Note 3): list all parameters for which the facility is certifying that there has not been a significant change in industrial activity or the pollution prevention measures in the area ofthe facility that drains to the outfall for which sampling was waived:

DIRECTIONS: In thespaces below, provide the results ofstormwater monitoring for the designated outfall. For each outfall, one Annual Stormwater Monitoring Report must be submitted. The parameters for which monitoring must be conducted depend on which industry sector(s) of the TMSP applies to the discharge. Look up your sector(s) in the TMSP and analyze for the parameters that apply. If parameter is not listed below, submit additional sheets. All samples should be grab.

Cut-off Annual Cut-off Annual Parameter Cone. Sample Parameter (continued) Cone. Sample (mg/L) Result (mg/L) (mg/L) Result (mg/L)

Aluminum, Total 0.75 Magnesium, Total 0.0636 Ammonia 4.0 Mercury, Total 0.0024 Arsenic, Total 0.16854 Nickel, Total 0.875 BOD, 5-Day 30 Nitrate + Nitrite Nitrogen 0.68 Cadmium, Total 0.0159 Oil and Grease 15 COD 120 pH 5.0-9.0 Copper, Total 0.018 Phosphorus, Total (as P) 2.0 Cyanide, Total 0.064 Selenium, Total I

0.2385 Fluoride 1.8 Silver, Total 0.032 Iron, Total 5.0 0.58 Total Suspended Solids 150 Lead, Total 0.15 Zinc, Total 0.395 CERTIFICATION AND SIGNATURE: (Make all entries in ink, not with a pencil. This report must be signed by a responsible corporate officer for a corporation, a general partner for a partnership, the proprietor for a sole proprietorship or a principal executive officer orranking elected official for a public agency.)

Icertify under penalty of law that this document and all of its attachments were prepared under my direction or my supervision in accordance with a system designed to assure qualified personnel properly gathered and evaluated the information submitted. Based on my inquiry of the person or persons who manage the system, or those persons directly responsible for gathering the information, the information submitted is, to the best of my knowledge and belief, true, accurate and complete I am aware there are significant penalties for submitting false information, including the possibility of fine and imprisonment for knowing violations. As specified in Tennessee Code Annotated Section 3>>4fr702(a)(4), this declaration is made under penalty of perjury Scott W. Hunnewell Printed Name Date CN-1115 (Rev 10/18) Page 1 of 2 RDA2366

Tennessee Department of Environment and Conservation Division of Water Resources William R. Snodgrass Tennessee Tower 312 Rosa L. Parks Avenue, 11th Floor, Nashville, Tennessee 37243 ANNUAL STORMWATER MONITORING REPORT for Stormwater Discharges Associated with Industrial Activity under the TENNESSEE MULTI-SECTOR GENERAL PERMIT (TMSP)

Facility Name: TVA - Sequoyah Nuclear Plant TMSP Number: TNR050015 Contact Person: Travis Markum Phone Number: 423-843-6714 This report is submitted for the following calendar year (e.g. 2015): 2019 Outfall Number: SW 13 List all TMSP sectors which apply to discharge from this outfall: 0 Sample Date: 09/24/2020 Low Concentration Waiver (Note 3): listall parameters for which the facility is certifying that there has not been a significant change in industrial activity or the pollution prevention measures in the area ofthe facility that drains to the outfall for which sampling was waived:

DIRECTIONS: In the spaces below, provide the results ofstormwater monitoring for the designated outfall. For each outfall, one Annual Stormwater Monitoring Report must be submitted. The parameters for which monitoring must be conducted depend on which industry sector(s) of the TMSP applies to the discharge. Look up your sector(s) in the TMSP and analyze for the parameters that apply. If parameter is not listed below, submit additional sheets. All samples should be grab.

Cut-off Annual Cut-off Annual Parameter Cone. Sample Parameter (continued) Cone. Sample (mg/L) Result (mg/L) i (mg/L) Result (mg/L)

Aluminum, Total 0.75 Magnesium, Total 0.0636 Ammonia 4.0 Mercury, Total 0.0024 Arsenic, Total 0.16854 Nickel, Total 0.875 BOD, 5-Day 30 Nitrate + Nitrite Nitrogen 0.68 Cadmium, Total 0.0159 Oil and Grease 15 COD 120 PH 5.0-9.0 Copper, Total 0.018 Phosphorus, Total (as P) 2.0 Cyanide, Total 0.064 Selenium, Total 0.2385 Fluoride 1.8 Silver, Total 0.032 Iron, Total 5.0 0.065 Total Suspended Solids 150 Lead, Total 0.15 Zinc, Total 0.395 CERTIFICATION AND SIGNATURE: (Make all entries in ink, not with a pencil. This report must be signed by a responsible corporate officer for a corporation, a general partner for a partnership, the proprietor for a sole proprietorship or a principal executive officer orranking elected official for a public agency.)

1certlfy under penalty of law that this document and all of its attachments were prepared under my direction or my supervision in accordance with a system designed to assure qualified personnel properly gathered and evaluated the information submitted. Based on my inquiry of the person or persons who manage the system, or those persons directly responsible for gathering the information, the information submitted is, to the best of my knowledge and belief, true, accurate and complete I am aware there are significant penalties for submitting false information, including the possibility of fine and imprisonment for knowing violations. As specified in Tennessee Code Annotated Section 39-1ft702(a)(4), this declaration is made under penalty of perjury Scott W. Hunnewel Interim Site VP Printed Name Official Title Signature Date CN-1115 (Rev 10/18) Page 1 of 2 RDA2366

Tennessee Department of Environment and Conservation Division of Water Resources William R. Snodgrass Tennessee Tower 312 Rosa L. Parks Avenue, 11th Floor, Nashville, Tennessee 37243 ANNUAL STORMWATER MONITORING REPORT for Stormwater Discharges Associated with Industrial Activity under the TENNESSEE MULTI-SECTOR GENERAL PERMIT (TMSP)

Facility Name: TVA - Sequoyah Nuclear Plant TMSP Number: TNR050015 Contact Person: Travis Markum Phone Number: 423-843-6714 This report is submitted for thefollowing calendar year (e.g. 2015): 2019 Outfall Number: SW 18 List all TMSP sectors which apply to discharge from this outfall: O Sample Date: 09/24/2020 Low Concentration Waiver (Note 3): list all parameters for which the facility is certifying that there has not been a significant change in industrial activity or the pollution prevention measures in the area of the facility that drains to the outfall for which sampling was waived:

DIRECTIONS: In the spaces below, provide the results of stormwater monitoring for the designated outfall. For each outfall one Annual Stormwater Monitoring Report must be submitted. The parameters for which monitoring must be conducted depend on which industry sector(s) of the TMSP applies to the discharge. Look up your sector(s) in the TMSP and analyze for the parameters that apply. If parameter is not listed below, submit additional sheets. All samples should be grab Cut-off Annual Cut-off Annual Parameter Sample Cone. Parameter (continued) Cone. Sample (mg/L) Result (mg/L) (mg/L) Result (mg/L)

Aluminum, Total 0.75 Magnesium, Total 0.0636 Ammonia 4.0 Mercury, Total 0.0024 Arsenic, Total 0.16854 Nickel, Total 0.875 BOD, 5-Day 30 Nitrate + Nitrite Nitrogen 0.68 Cadmium, Total 0.0159 Oil and Grease 15 COD 120 pH 5.0-9.0 Copper, Total 0.018 Phosphorus, Total (as P) 2.0 Cyanide, Total 0.064 Selenium, Total 0.2385 Fluoride 1.8 Silver, Total 0.032 Iron, Total 5.0 0.12 Total Suspended Solids 150 Lead, Total 0.15 Zinc, Total 0.395 CERTIFICATION AND SIGNATURE: (Make all entries in ink, not with apencil. This report must be signed by aresponsible corporate officer for a corporation, a general partner for a partnership, the proprietor for a sole proprietorship or a principal executive officer or ranking elected official for a public agency.)

' Cmify ^der penalty of law that this document and all of its attachments were prepared under my direction or my supervision llaCCn H3npCe T a SyStem deSigned t0 aSSUre qU3lified perSOnnel Pr°Perly 8athered and eval^ted the information gathering f °n 7 T"^

mS rfp ;hthe information, thS PerS°n the information °r PerS°nS submitted Wh°best is, to the man8ge of mythe SyStem' and knowledge °r th0se belief,Persons directly and true, accurate responsible completeforI am aware there are significant penalties for submitting false information, including the possibility of fine and imprisonment for l~ng^tior^Asjp^cified in Tennessee Code Annotated Section 39->6r702(a)(4), this declaration is made under penalty of perjury Scott W. Hunnewel Interim Site VP Printed Name CN-1115 (Rev 10/18) Pagel of 2 RDA2366

Tennessee Department of Environment and Conservation Division of Water Resources William R. Snodgrass Tennessee Tower 312 Rosa L. Parks Avenue, 11 th Floor, Nashville, Tennessee 37243 ANNUAL STORMWATER MONITORING REPORT for Stormwater Discharges Associated with Industrial Activity under the TENNESSEE MULTI-SECTOR GENERAL PERMIT (TMSP)

Facility Name: TVA - Sequoyah Nuclear Plant TMSP Number: TNR050015 Contact Person: Travis Markum Phone Number: 423-843-6714 This report is submitted for the following calendar year (e.g. 2015): 2019 Outfall Number: SW 19 List all TMSP sectors which apply to discharge from this outfall: O Sample Date: 09/24/2020 Low Concentration Waiver (Note 3): list all parameters for which the facility is certifying that there has not been a significant change in industrial activity or the pollution prevention measures in the area ofthe facility that drains to the outfall for which sampling was waived:

DIRECTIONS: In the spaces below, provide the results ofstormwater monitoring for the designated outfall. For each outfall, one Annual Stormwater Monitoring Report must be submitted. The parameters for which monitoring must be conducted depend on which industry sector(s) of the TMSP applies to the discharge. Look up your sector(s) in the TMSP and analyze for the parameters that apply. If parameter is not listed below, submit additional sheets. All samples should be grab.

Cut-off Annual Cut-off Annual Parameter Cone. Sample Parameter (continued) Cone. Sample (mg/L) Result (mg/L) (mg/L) Result (mg/L)

Aluminum, Total 0.75 Magnesium, Total 0.0636 Ammonia 4.0 Mercury, Total 0.0024 Arsenic, Total '"o. 16854 Nickel, Total 0.875 BOD, 5-Day 30 Nitrate + Nitrite Nitrogen 0.68 Cadmium, Total 0.0159 Oil and Grease 15 COD 120 PH 5.0-9.0 Copper, Total 0.018 Phosphorus, Total (as P) 2.0 Cyanide, Total 0.064 Selenium, Total 0.2385 Fluoride 1.8 Silver, Total 0.032 Iron, Total 5.0 0.46 Total Suspended Solids 150 Lead, Total 0.15 Zinc, Total 0.395 CERTIFICATION AND SIGNATURE: (Make all entries in ink, not with a pencil. This report must be signed by a responsible corporate officer for a corporation, a general partner for a partnership, the proprietor for a sole proprietorship, or a principal executive officer or ranking elected official for a public agency.)

Icertify under penalty of law that this document and all of its attachments were prepared under my direction or my supervision in accordance with a system designed to assure qualified personnel properly gathered and evaluated the information submitted. Based on my inquiry of the person or persons who manage the system, or those persons directly responsible for gathering the information, the information submitted is, to the best of my knowledge and belief, true, accurate, and complete I am aware there are significant penalties for submitting false information, including the possibility of fine and imprisonment for knowing violations. As specified in Tennessee Code Annotated Section 39-16-702(a)(4), this declaration is made under penalty of perjury.

Scott W. Hunnewel Printed Name Date CN-1115 (Rev 10/18) Page 1 of 2 RDA2366

Tennessee Department of Environment and Conservation Division of Water Resources William R. Snodgrass Tennessee Tower 312 Rosa L. Parks Avenue, 11th Floor, Nashville, Tennessee 37243 ANNUAL STORMWATER MONITORING REPORT for Stormwater Discharges Associated with Industrial Activity under the TENNESSEE MULTI-SECTOR GENERAL PERMIT (TMSP)

Facility Name: TVA - Sequoyah Nuclear Plant TMSP Number: TNR050015 Contact Person: Travis Markum Phone Number: 423-843-6714 This report is submitted for the following calendar year (e.g. 2015): 2019 Outfall Number: SW 21 Listall TMSP sectors which apply to discharge from this outfall: 0 Sample Date: 09/24/2020 Low Concentration Waiver (Note 3): list all parameters for which the facility is certifying that there has not been a significant change in industrial activity or the pollution prevention measures in the area of the facility that drains to the outfall for which sampling was waived:

DIRECTIONS: In the spaces below, provide the results of stormwater monitoring for the designated outfall. For each outfall, one Annual Stormwater Monitoring Report must be submitted. The parameters for which monitoring must be conducted depend on which industry sector(s) oftheTMSP applies to thedischarge. Look up your sector(s) in theTMSP and analyze for the parameters thatapply. If parameter is not listed below, submit additional sheets. All samples should begrab.

Cut-off Annual Cut-off Annual Parameter Cone. Sample Parameter (continued) Cone. Sample (mg/L) Result (mg/L) (mg/L) Result (mg/L)

Aluminum, Total 0.75 Magnesium, Total 0.0636 Ammonia 4.0 Mercury, Total 0.0024 Arsenic, Total 0.16854 Nickel, Total 0.875 BOD, 5-Day 30 Nitrate + Nitrite Nitrogen 0.68 Cadmium, Total 0.0159 Oil and Grease 15 COD 120 PH 5.0-9.0 Copper, Total 0.018 Phosphorus, Total (as P) 2.0 Cyanide, Total 0.064 Selenium, Total 0.2385 Fluoride 1.8 Silver, Total 0.032 Iron, Total 5.0 5.0 Total Suspended Solids 150 Lead, Total 0.15 Zinc, Total 0.395 CERTIFICATION AND SIGNATURE: (Make all entries in ink, not with a pencil. This report must be signed by a responsible corporate officer for a corporation, a general partner for a partnership, the proprietor for a sole proprietorship, or a principal executive officer or ranking elected official for a public agency.)

Icertify under penalty oflaw that this document and all ofits attachments were prepared under my direction or my supervision in accordance with a system designed to assure qualified personnel properly gathered and evaluated the information submitted. Based on my inquiry of the person or persons who manage the system, or those persons directly responsible for gathering the information, the information submitted is, to the best of my knowledge and belief, true, accurate, and complete. I am aware there are significant penalties for submitting false information, including the possibility of fine and imprisonment for knowing violations. As specified in Tennessee Code Annotated Section 39-16-702(a)(4), this declaration is made under penalty of perjury.

Scott W. Hunnewell Interim Site VP Printed Name Official Title Signature Date CN-1115(Rev 10/18) Page 1 of 2 RDA2366