ML18274A080

Tennessee Multi-Sector General Permit (Tmsp) - Annual Storm Water Benchmark Monitoring Report - Total Recoverable Iron

ML18274A080
Person / Time
Site:	Sequoyah
Issue date:	09/25/2018
From:	Anthony Williams Tennessee Valley Authority
To:	Office of Nuclear Reactor Regulation, State of TN, Chattanooga Environmental Field Office, Division of Water Pollution Control
References
TNR050015
Download: ML18274A080 (12)

Text

Tennessee Valley Authority, Post Office Box 2000, Soddy Daisy, Tennessee 37384-2000 September 25, 2018 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}- ANNUAL STORM WATER BENCHMARK MONITORING REPORT - TOTAL RECOVERABLE IRON Please find enclosed a 2018 Annual Storm Water Benchmark Monitoring Report for Sequoyah Nuclear Plant, TMSP No. TNR050015. Eleven of thirteen outfalls were sampled for total recoverable iron on September 6, 2018. The iron analysis for each is reported on the enclosed forms (CN-1115). Outfalls 1, 4, and 6 exceeded the benchmark value, and as required, a 30-, 60-day notification letter is being prepared for submission to the local TDEC office. If you have questions or need additional information, please contact Millicent Garland by phone at (423) 843-6714 or by e-mail at mrmoore@tva.gov.

I certijj, under penalty of law 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 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 that there are significant penalties for submitting false information, including the possibility offine and imprisonment for knowing violations.

Anthony L. Williams Site Vice President Sequoyah Nuclear Plant Enclosures cc (Enclosures):

U.S. Nuclear Regulatory Commission Attn: Document Control Desk Washington, DC 20555

TENNESSEE DEPARTMENT OF ENVIRONMENT AND CONSERVATION (TDEC)

Division of Water Resources, William R. Snodgrass Tennessee Tower, 312 Rosa L. Parks Avenue, 11th Floor, Nashville, Tennessee 37243, 1-888-891-TDEC (8332)

Annual Stormwater Monitoring Report for Stormwater Discharges Associated with Industrial Activities under the Tennessee Multi-Sector General NPDES Permit (TMSP)

Facility Name: . TVA- Sequoyah Nuclear Plant 1MSP Number: rNR050015 Contact Person: Millicent Garland Phone Number: 423-843-6714 This report is submitted for the following calendar year (e.g. 2013): 2018 Outfall Number: SW 1 List all 1MSP sectors which apply to discharge from this outfall: O Sample Date: 09/06/2018 LOW CONCENTRATION WAIVER (See Instructions 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.

Parameters:

DIRECTIONS: In the spaces below, provide the results of storm water monitoring for the designated outfall. The parameters for which monitoring must be conducted depend on which industry sector(s) of the 1MSP applies to the discharge. Look up your sector(s) in the permit and analyze for the parameters that apply. If parameter is not listed below, submit additional sheets. All samples should be collected by grab technique.

Parameter Benchmark Annual Sample Parameter (continued) Benchmark Annual Sample

'(mg/L) Result (mg/L) (mg/L) Result (mg/L)

Aluminum, Total 0.75 n/a Magnesium, Total 0.064 n/a Ammonia 4.0 n/a Mercury, Total 0.0024 n/a Arsenic, Total 0.15 n/a Nickel, Total 0.875 n/a BOD, 5-Day 30 n/a Nitrate + Nitrite Nitrogen 0.68 n/a *-

Cadmium, Total 0.0021 n/a Oil and Grease 15 n/a Chromium, Total 1.8 n/a pH 5.0-9.0 n/a COD 120 n/a Phenols 0.016 n/a Copper, Total 0.018 n/a Phosphorus, Total (as P) 2.0 n/a Cyanide, Total 0.022 n/a Selenium, Total 0.005 n/a Fluoride 1.8 n/a Silver, Total 0.0038 n/a Iron, Total 5.0 21.5 Total Suspended Solids (TSS) 150 n/a Lead, Total 0.156 n/a Zinc, Total 0.395 n/a CERTIFICATION AND SIGNATURE Make all entries in ink. 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.

I certify under penalty of law that this document and all attachments were prepared by me, or under my direction or supervision. The submitted information is to the best of my knowledge and belief, true, accurate, and comp!:te: ~ at t ere

• nificant penalties for submitting false information, including the possibility of fine and imprisonment. As spec~n Tennessee Code Annot d Section 39-16-702(a)(4), this declaration is made under penalty of perjury. //

Anthony L. Williams Permittee name (print or type) Official Title Date

1. The purpose of this form is to report stormwater monitoring results under the TMSP. Only one sample per calendar year is required (except Sectors J & H, for more details see the TMSP at http://wmv.tn.2:o,'/e11\'ironment/pennits/tmsp.sh1ml) Grab samples should be collected within the first 30 minutes (or as soon thereafter as practical, but not to exceed one hour) of when the runoff or snowrnelt begins discharging. A separate form must be submitted for each outfall. If more than one sample is collected at any outfall, submit the average results of all monitoring data (for calculating average, use Y:, of a detection level, if parameter was not detected). New facilities must conduct sampling in the year during which permit coverage was obtained and during each following year. The completed form must be submitted by March 31 of the following year, e.g. monitoring required during 2013 calendar year is due by March 31, 2014.

2. If the results of annual stormwater runoff monitoring demonstrates that the facility has exceeded the benchmark concentration, the permittee must inform The Division's local Environmental Field Office (EFO) in writing within 30 days from the time stormwater monitoring results were received, describing the likely cause of the exceedance(s). Furthermore, within 60 days from the time stormwater monitoring results were received, the facility must review its stormwater pollution prevention plan (SWPPP), make any modifications or additions to the plan which would assist in reducing runoff concentrations to less than the benchmark concentrations for that parameter, and submit to the local EFO a summary of the proposed SWPPP modifications (including a timetable for implementation).

3. Low Concentration Waiver- When the average concentration for a pollutant calculated from monitoring data collected from the first four calendar years of monitoring is less than the benchmark concentration, a facility may waive monitoring requirements in the last annual monitoring period. This form should be used for certification oflow concentration waiver provision.

Complete, sign and date this form before it is submitted. Keep a copy of the completed form for your records. Submit the original completed and signed form to: Compliance & Enforcement Unit, William R. Snodgrass Tennessee Tower, 312 Rosa L. Parks Avenue, 11th Floor, Nashville, Tennessee 37243 or you may submit the report electronically to: D\\'RWater.Compliancc*iitn.gov CN-1115 (Rev. 1-14) RDA2366

TENNESSEE DEPARTMENT OF ENVIRONMENT AND CONSERVATION (TDEC)

Division of Water Resources, William R. Snodgrass Tennessee Tower, 312 Rosa L. Parks Avenue, I Ith Floor, Nashville, Tennessee 37243, 1-888-891-TDEC (8332)

Annual Stormwater Monitoring Report for Stormwater Discharges Associated with Industrial Activities under the Tennessee Multi-Sector General NPDES Permit (TMSP)

Facility ]'ll"atl).e: ... . : ITVA -$egu9y~ti Nucle~r Plant * .. *,.

TMSP Nunioor: TNROS0,015 Contact Person: IMillicent Garland Phone Number: 423-843-6714 This report is submitted for the following calendar year (e.g. 2013): 2018 Outfall Number: SW2 List all TMSP sectors which apply to discharge from this outfall: 0 Sample Date: 09/06/2018 LOW CONCENTRATION WAIVER (See Instructions 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.

Parameters:

DIRECTIONS: In the spaces below, provide the results of storm water monitoring for the designated outfall. 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 permit and analyze for the parameters that apply. If parameter is not listed below, submit additional sheets. All samples should be collected by grab technique.

Benchmark Amiuafsample Pariun~ter (continued) Benchinafk . *. Annuai Sample

(~) . ~~ii,i <~git.,) , (nig/Lf: . Result (mg/L)

Aluminum, Total 0.75 n/a Magnesium, Total 0.064 n/a Ammonia 4.0 n/a Mercury, Total 0.0024 n/a Arsenic, Total 0.15 n/a Nickel, Total 0.875 n/a BOD, 5-Day 30 n/a .. Nitrate+ Nitrite Nitrogen 0.68 n/a Cadmium, Total 0.0021 n/a Oil and Grease 15 n/a Chromium, Total 1.8 n/a pH 5.0-9.0 n/a COD 120 n/a Phenols 0.016 n/a Copper, Total 0.018 n/a Phosphorus, Total (as P) 2.0 n/a Cyanide, Total 0.022 n/a Selenium, Total 0.005 n/a Fluoride 1.8 n/a Silver, Total 0.0038 n/a Iron, Total 5.0 0.74 Total Suspended Solids (TSS) 150 n/a Lead, Total 0.156 n/a Zinc, Total 0.395 n/a CERTIFICATION AND SIGNATURE Make all entries in ink. 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.

I certify under penalty of law that this document and all attachments were prepared by me, or under my direction or supervision. The submitted information is to the best ofmy knowledge and belief, true, accurate, and complete. I a e-thatthe-re are significant penalties for submitting false information, including the possibility of fine and imprisonment. As speci in Tennessee Code otated Section 39-16-702(a)(4), this declaration is made under penalty of perjury.

Anthony L. Williams Site Vice President, Sequoyah Nu Permittee name (print or type) Official Title Date INSTRUCTIONS

1. The purpose of this form is to report stormwater monitoring results under the TMSP. Only one sample per calendar year is required (except Sectors J & H, for more details see the TMSP at http://m\w.tn.gov/cnvironment/permits/tmsp.shtml) Grab samples should be collected within the first 30 minutes (or as soon thereafter as practical, but not to exceed one hour) of when the runoff or snowmelt begins discharging. A separate form must be submitted for each outfall. If more than one sample is collected at any outfall, submit the average results of all monitoring data (for calculating average, use Y, of a detection level, if parameter was not detected). New facilities must conduct sampling in the year during which permit coverage was obtained and during each following year. The completed form must be submitted by March 31 of the following year, e.g. monitoring required during 2013 calendar year is due by March 31, 2014.

2. If the results of annual stormwater runoff monitoring demonstrates that the facility has exceeded the benchmark concentration, the permittee must inform The Division's local Environmental Field Office (EFO) in writing within 30 days from the time stormwater monitoring results were received, describing the likely cause of the exceedance(s). Furthermore, within 60 days from the time stormwater monitoring results were received, the facility must review its stormwater pollution prevention plan (SWPPP), make any modifications or additions to the plan which would assist in reducing runoff concentrations to less than the benchmark concentrations for that parameter, and submit to the local EFO a summary of the proposed SWPPP modifications (including a timetable for implementation).

3. Low Concentration Waiver - When the average concentration for a pollutant calculated from monitoring data collected from the first four calendar years of monitoring is less than the benchmark concentration, a facility may waive monitoring requirements in the last annual monitoring period. This form should be used for certification oflow concentration waiver provision.

Complete, sign and date this form before it is submitted. Keep a copy of the completed form for your records. Submit the original completed and signed form to: Compliance & Enforcement Unit, William R. Snodgrass Tennessee Tower, 312 Rosa L. Parks Avenue, 11th Floor, Nashville, Tennessee 37243 or you may submit the report electronically to: DWRWater.Compliance<a:.tn.go, CN-1115 (Rev. 1*14) RDA2366

TENNESSEE DEPARTMENT OF ENVIRONMENT AND CONSERVATION (TDEC)

Division of Water Resources, William R. Snodgrass Tennessee Tower, 312 Rosa L. Parks Avenue, 11th Floor, Nashville, Tennessee 37243, 1-888-891-TDEC (8332)

Annual Stormwater Monitoring Report for Stormwater Discharges Associated with Industrial Activities under the Tennessee Multi-Sector General NPDES Permit (TMSP)

Faciiity Name: TVA- Sequoyah Nuclear Plant TMSPNumber: TNR050015 Contact Person: Millicent Garland Phone Number: 423-843-6714 This report is submitted for the following calendar year (e.g. 2013): 2018 Outfall Number: SW3 List all TMSP sectors which apply to discharge from this outfall: O Sample Date: 09/06/2018 LOW CONCENTRATION WAIVER (See Instructions 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.

Parameters:

DIRECTIONS: In the spaces below, provide the results of storm water monitoring for the designated outfall. 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 permit and analyze for the parameters that apply. If parameter is not listed below, submit additional sheets. All samples should be collected by grab technique.

Parameter Benchmark Ammal Sample Parameter (continued) .Benchmark Annual Sample (mg/L) Result (mg/L) (mg/L) Result (mg/L)

Aluminum, Total 0.75 n/a Magnesium, Total 0.064 n/a Ammonia 4.0 n/a Mercury, Total 0.0024 n/a Arsenic, Total 0.15 n/a Nickel, Total 0.875 n/a BOD, 5-Day 30 n/a Nitrate+ Nitrite Nitrogen 0.68 n/a Cadmium, Total 0.0021 n/a Oil and Grease 15 n/a Chromium, Total 1.8 n/a pH 5.0-9.0 n/a COD 120 n/a Phenols 0.016 n/a Copper, Total 0.018 n/a Phosphorus, Total (as P) 2.0 n/a Cyanide, Total 0.022 n/a Selenium, Total 0.005 n/a Fluoride 1.8 n/a Silver, Total 0.0038 n/a Iron, Total 5.0 1.92 Total Suspended Solids (TSS) 150 n/a Lead, Total 0.156 n/a Zinc, Total 0.395 n/a CERTIFICATION AND SIGNATURE Make all entries in ink. 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.

I certify under penalty of law that this document and all attachments were prepared by me, irection or supervision. The submitted information is to the best of my knowledge and belief, true, accurate, and complete. aware that there e significant penalties for submitting false information, including the possibility of fine and imprisonment. As spec* ed in Tennessee Code A otated Section 39-16-702(a)(4), this declaration is made under penalty of perjury.

Anthony L. Williams Site Vice President, Sequoyah Nu Permittee name (print or type) Official Title Date INSTRUCTIONS

1. The purpose of this form is to report stormwater monitoring results under the TMSP. Only one sample per calendar year is required (except Sectors J & H, for more details see the TMSP at http://wmv.tn.go\'/c11\'iron111e11t/pcrmits/tmsp.shtml) Grab samples should be collected within the first 30 minutes (or as soon thereafter as practical, but not to exceed one hour) of when the runoff or snowmelt begins discharging. A separate form must be submitted for each outfall. If more than one sample is collected at any outfall, submit the average results of all monitoring data (for calculating average, use Y, ofa detection level, if parameter was not detected). New facilities must conduct sampling in the year during which permit coverage was obtained and during each following year. The completed form must be submitted by March 31 of the following year, e.g. monitoring required during 2013 calendar year is due by March 31, 2014.

2. If the results of annual stormwater runoff monitoring demonstrates that the facility has exceeded the benchmark concentration, the permittee must inform The Division's local Environmental Field Office (EFO) in writing within 30 days from the time stormwater monitoring results were received, describing the likely cause of the exceedance(s). Furthermore, within 60 days from the time stormwater monitoring results were received, the facility must review its stormwater pollution prevention plan (SWPPP), make any modifications or additions to the plan which would assist in reducing runoff concentrations to less than the benchmark concentrations for that parameter, and submit to the local EFO a summary of the proposed SWPPP modifications (including a timetable for implementation).

3. Low Concentration Waiver - When the average concentration for a pollutant calculated from monitoring data collected from the first four calendar years of monitoring is less than the benchmark concentration, a facility may waive monitoring requirements in the last annual monitoring period. This form should be used for certification oflow concentration waiver provision.

Complete, sign and date this form before it is submitted. Keep a copy of the completed form for your records. Submit the original completed and signed form to: Compliance & Enforcement Unit, William R. Snodgrass Tennessee Tower, 312 Rosa L. Parks Avenue, 11th Floor, Nashville, Tennessee 37243 or you may submit the report electronically to: DWRWatcr.Compliance,ii'.tn.go\'

CN-1115 (Rev. 1*14) RDA2366

TENNESSEE DEPARTMENT OF ENVIRONMENT AND CONSE RVA TION (TDEC)

Division of Water Resources, William R. Snodgrass Tennessee Tower, 312 Rosa L. Parks Avenue, 11th Floor, Nashville, Tennessee 37243, 1-888-891-TDEC (8332)

Annual Stormwater Monitoring Report for Stormwater Discharges Associated with Industrial Activities under the Tennessee Multi-Sector General NPDES Permit (TMSP)

Facility Name: ITVA - Sequoyah Nuclear Plant TMSP Number: TNR050015 Contact Person: IMillicent Garland Phone Number: 423-843-6714 This report is submitted for the following calendar year (e.g. 2013): 12018 Outfall Number: SW4 List all TMSP sectors which apply to discharge from this outfall: lo Sample Date: 09/06/2018 LOW CONCENTRATION WAIVER (See Instructions 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.

Parameters:

DIRECTIONS: In the spaces below, provide the results of storm water monitoring for the designated outfall. 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 permit and analyze for the parameters that apply. If parameter is not listed below, submit additional sheets. All samples should be collected by grab technique.

Parameter Benchmark Annual Sample *Parameter (continued) Benchmark Annual Sample (mg/L) Result. (mg/L) (mg/L) Result (mg/L)

Aluminum, Total 0.75 n/a Magnesium, Total 0.064 n/a Ammonia 4.0 n/a Mercury, Total 0.0024 n/a Arsenic, Total 0.15 n/a Nickel, Total 0.875 n/a BOD, 5-Day 30 n/a Nitrate + Nitrite Nitrogen 0.68 n/a Cadmium, Total 0.0021 n/a Oil and Grease 15 n/a Chromium, Total 1.8 n/a pH 5.0-9.0 n/a COD 120 n/a Phenols 0.016 n/a Copper, Total 0.018 n/a Phosphorus, Total (as P) 2.0 n/a Cyanide, Total 0.022 n/a Selenium, Total 0.005 n/a Fluoride 1.8 n/a Silver, Total 0.0038 n/a Iron, Total 5.0 18.6 Total Suspended Solids (TSS) 150 n/a Lead, Total 0.156 n/a Zinc, Total 0.395 n/a CERTIFICATION AND SIGNATURE Make all entries in ink. 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.

I certify under penalty of law that this document and all attachments were prepared by me, or under my direction or supervision. The submitted information is to the best ofmy knowledge and belief, true, accurate, and complete. I am a are significant penalties for submitting false information, including the possibility of fine and imprisonment. As specifi *n Tennessee Code Ann tated Section 39-16-702(a)(4), this declaration is made under penalty of perjury.

Anthony L. Williams Permittee name (print or type)

Site Vice President. Sequoyah N Official Title 2/2-slct Date INSTRUCTIONS

1. The purpose of this form is to report stormwater monitoring results under the TMSP. Only one sample per calendar year is required (except Sectors J & H, for more details see the TMSP at http:/fo,\w.tn.Q:ovienvironment/permits/tmsp.shtml) Grab samples should be collected within the first 30 minutes (or as soon thereafter as practical, but not to exceed one hour) of when the runoff or snowmelt begins discharging. A separate form must be submitted for each outfall. If more than one sample is collected at any outfall, submit the average results of all monitoring data (for calculating average, use Yi of a detection level, if parameter was not detected). New facilities must conduct sampling in the year during which permit coverage was obtained and during each following year. The completed form must be submitted by March 31 of the following year, e.g. monitoring required during 2013 calendar year is due by March 31, 2014.

2. If the results of annual stormwater runoff monitoring demonstrates that the facility has exceeded the benchmark concentration, the permittee must inform The Division's local Environmental Field Office (EFO) in writing within 30 days from the time stormwater monitoring results were received, describing the likely cause of the exceedance(s). Furthermore, within 60 days from the time stormwater monitoring results were received, the facility must review its stormwater pollution prevention plan (SWPPP), make any modifications or additions to the plan which would assist in reducing runoff concentrations to less than the benchmark concentrations for that parameter, and submit to the local EFO a summary of the proposed SWPPP modifications (including a timetable for implementation).

3. Low Concentration Waiver - When the average concentration for a pollutant calculated from monitoring data collected from the first four calendar years of monitoring is less than the benchmark concentration, a facility may waive monitoring requirements in the last annual monitoring period. This form should be used for certification oflow concentration waiver provision.

Complete, sign and date this form before it is submitted. Keep a copy of the completed form for your records. Submit the original completed and signed form to: Compliance & Enforcement Unit, William R. Snodgrass Tennessee Tower, 312 Rosa L. Parks Avenue, 11th Floor, Nashville, Tennessee 37243 or you may submit the report electronically to: DWR\\"atcr.Compliance*,'ttn.go, CN-1115 (Rev. 1-14) RDA2366

TENNESSEE DEPARTMENT OF ENVIRONMENT AND CONSERVATION (TDEC)

Division of Water Resources, William R. Snodgrass Tennessee Tower, 312 Rosa L. Parks Avenue, 11th Floor, Nashville, Tennessee 37243, 1-888-891-TDEC (8332)

Annual Stormwater Monitoring Report for Stormwater Discharges Associated with Industrial Activities under the Tennesse~ Multi-Sector General NPDES Permit (fMSP)

Facility Name: jlVA - Seguoyah Nuclear Plant .. TMSP Nimil;>ei': TNR050015 Contact Person: IMillicent Garland Phone Number: 423-843-6714 This report is submitted for the following calendar year (e.g. 2013): 2018 Outfall Number: SW6 List all TMSP sectors which apply to discharge from this outfall: 0 Sample Date: 09/06/2018 LOW CONCENTRATION WAIVER (See Instructions 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.

Parameters:

DIRECTIONS: In the spaces below, provide the results of storm water monitoring for the designated outfall. 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 permit and analyze for the parameters that apply. If parameter is not listed below, submit additional sheets. All samples should be collected by grab technique.

.Parameter. Benchmark Annual Sainple . Par'a:nieter(continued) Benchmark Annual.Sample (ing/L) . 1,iesult (mg!L) . . (mg/L) Result (riig/L)

Aluminum, Total 0.75 n/a Magnesium, Total 0.064 n/a Ammonia 4.0 n/a Mercury, Total 0.0024 n/a Arsenic, Total 0.15 n/a Nickel, Total 0.875 n/a BOD, 5-Day 30 n/a Nitrate + Nitrite Nitrogen 0.68 n/a Cadmium, Total 0.0021 n/a Oil and Grease 15 n/a Chromium, Total 1.8 n/a pH 5.0-9.0 n/a COD 120 n/a Phenols 0.016 n/a Copper, Total 0.018 n/a *" Phosphorus, Total (as P) 2.0 n/a Cyanide, Total 0.022 n/a Selenium, Total 0.005 n/a Fluoride 1.8 n/a Silver, Total 0.0038 n/a Iron, Total 5.0 9.73 Total Suspended Solids (TSS) 150 n/a Lead, Total 0.156 n/a Zinc, Total 0.395 n/a CERTIFICATION AND SIGNATURE Make all entries in ink. 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.

I certify under penalty of law that this document and all attachments were prepared by me, or under my direction or supervision. The submitted information is to the best ofmy knowledge and belief, true, accurate, and complete. I am awar e significant penalties for submitting false information, including the possibility of fine and imprisonment. As specified in nessee Code An otated Section 39-16-702(a)(4), this declaration is made under penalty of perjury.

Anthony L. Williams Permittee name (print or type) Official Title Date INSTRUCTIONS

1. The purpose of this form is to report stormwater monitoring results under the TMSP. Only one sample per calendar year is required (except Sectors J & H, for more details see the TMSP at http://w\1w.t11.gov/cm*ironment/pcrmits/tmsp.sh1ml) Grab samples should be collected within the first 30 minutes (or as soon thereafter as practical, but not to exceed one hour) of when the runoff or snowmelt begins discharging. A separate form must be submitted for each outfall. If more than one sample is collected at any outfall, submit the average results of all monitoring data (for calculating average, use Y:, ofa detection level, if parameter was not detected). New facilities must conduct sampling in the year during which permit coverage was obtained and during each following year. The completed form must be submitted by March 31 of the following year, e.g. monitoring required during 2013 calendar year is due by March 31, 2014.

2. If the results of annual stormwater runoff monitoring demonstrates that the facility has exceeded the benchmark concentration, the permittee must inform The Division's local Environmental Field Office (EFO) in writing within 30 days from the time stormwater monitoring results were received, describing the likely cause of the exceedance(s). Furthermore, within 60 days from the time stormwater monitoring results were received, the facility must review its stormwater pollution prevention plan (SWPPP), make any modifications or additions to the plan which would assist in reducing runoff concentrations to less than the benchmark concentrations for that parameter, and submit to the local EFO a summary of the proposed SWPPP modifications (including a timetable for implementation).

3. Low Concentration Waiver - When the average concentration for a pollutant calculated from monitoring data collected from the first four calendar years of monitoring is less than the benchmark concentration, a facility may waive monitoring requirements in the last annual monitoring period. This form should be used for certification oflow concentration waiver provision.

Complete, sign and date this form before it is submitted. Keep a copy of the completed form for your records. Submit the original completed and signed form to: Compliance & Enforcement Unit, William R. Snodgrass Tennessee Tower, 312 Rosa L. Parks Avenue, 11th Floor, Nashville, Tennessee 37243 or you may submit the report electronically to: DWRWatcr.Compliance*a*tn.gov CN-1115 (Rev. 1-14) RDA2366

TENNESSEE DEPARTMENT OF ENVIRONMENT AND CONSERVATION (TDEC)

Division of Water Resources, William R. Snodgrass Tennessee Tower, 312 Rosa L. Parks Avenue, 11th Floor, Nashville, Tennessee 37243, 1-888-891-TDEC (8332)

Annual Stormwater Monitoring Report for Stormwater Discharges Associated with Industrial Activities under the Tennessee Multi-Sector General NPDES Permit (TMSP)

Facility Name: ITVA - Sequoyah Nuciear Plant 1MSP Number: TNR050015 Contact Person: IMillicent Garland Phone Number: 423-843-6714 This report is submitted for the following calendar year (e.g. 2013): 2018 Outfall Number: SW8 List all 1MSP sectors which apply to discharge from this outfall: 0 Sample Date: 09/06/2018 LOW CONCENTRATION WAIVER (See Instructions 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.

Parameters:

DIRECTIONS: In the spaces below, provide the results of storm water monitoring for the designated outfall. The parameters for which monitoring must be conducted depend on which industry sector(s) of the 1MSP applies to the discharge. Look up your sector(s) in the permit and analyze for the parameters that apply. If parameter is not listed below, submit additional sheets. All samples should be collected by grab technique.

Parameter Benchmark

• Annual Sample Parameter (continued) Benchmark Annual Sample (mg/L) *Result (mg/L) (mg/L) Result (mg/L)

Aluminum, Total 0.75 n/a Magnesium, Total 0.064 n/a Ammonia 4.0 n/a Mercury, Total 0.0024 n/a Arsenic, Total 0.15 n/a Nickel, Total 0.875 n/a BOD, 5-Day 30 n/a Nitrate+ Nitrite Nitrogen 0.68 n/a Cadmium, Total 0.0021 n/a Oil and Grease 15 n/a Chromium, Total 1.8 n/a pH 5.0-9.0 n/a COD 120 n/a Phenols 0.016 n/a Copper, Total 0.018 n/a Phosphorus, Total (as P) 2.0 n/a Cyanide, Total 0.022 n/a *. Selenium, Total 0.005 n/a Fluoride 1.8 n/a Silver, Total 0.0038 n/a Iron, Total 5.0 2.41 Total Suspended Solids (TSS) 150 n/a Lead, Total 0.156 n/a Zinc, Total 0.395 n/a CERTIFICATION AND SIGNATURE Make all entries in ink. 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.

I certify under penalty of law that this document and all attachments were prepared by me, or under my direction or supervision. The submitted information is to the best ofmy knowledge and belief, true, accurate, and complete. I at t ere 'gnificant penalties for submitting false information, including the possibility of fine and imprisonment. As specifi 'n Tennessee Code Annot ed Section 39-16-702(a)(4), this declaration is made under penalty of perjury.

Anthony L. Williams Site Vice President, Sequoyah Nucl Permittee name (print or type) Official Title Date INSTRUCTIONS

1. The purpose of this form is to report stormwater monitoring results under the 1MSP. Only one sample per calendar year is required (except Sectors J & H, for more details see the 1MSP at http://w\\w.tn.2.ov/environment/permitsltmsp.shtml) Grab samples should be collected within the first 30 minutes (or as soon thereafter as practical, but not to exceed one hour) of when the runoff or snowmelt begins discharging. A separate form must be submitted for each outfall. If more than one sample is collected at any outfall, submit the average results of all monitoring data (for calculating average, use Yi of a detection level, if parameter was not detected). New facilities must conduct sampling in the year during which permit coverage was obtained and during each following year. The completed form must be submitted by March 31 of the following year, e.g. monitoring required during 2013 calendar year is due by March 31, 2014.

2. If the results of annual stormwater runoff monitoring demonstrates that the facility has exceeded the benchmark concentration, the permittee must inform The Division's local Environmental Field Office (EFO) in writing within 30 days from the time stormwater monitoring results were received, describing the likely cause of the exceedance(s). Furthermore, within 60 days from the time stormwater monitoring results were received, the facility must review its stormwater pollution prevention plan (SWPPP), make any modifications or additions to the plan which would assist in reducing runoff concentrations to less than the benchmark concentrations for that parameter, and submit to the local EFO a summary of the proposed SWPPP modifications (including a timetable for implementation).

3. Low Concentration Waiver - When the average concentration for a pollutant calculated from monitoring data collected from the first four calendar years of monitoring is less than the benchmark concentration, a facility may waive monitoring requirements in the last annual monitoring period. This form should be used for certification oflow concentration waiver provision.

Complete, sign and date this form before it is submitted. Keep a copy of the completed form for your records. Submit the original completed and signed form to: Compliance & Enforcement Unit, William R. Snodgrass Tennessee Tower, 312 Rosa L. Parks Avenue, 11th Floor, Nashville, Tennessee 37243 or you may submit the report electronically to: DWRWater.Compliance'ii.tn.goy CN-1115 (Rev. 1-14) RDA2366

TENNESSEE DEPARTMENT OF ENVIRONMENT AND CONSERVATION (TDEC)

Division of Water Resources, William R. Snodgrass Tennessee Tower, 312 Rosa L. Parks Avenue, 11th Floor, Nashville, Tennessee 37243, 1-888-891-TDEC (8332)

Annual Stormwater Monitoring Report for Stormwater Discharges Associated with Industrial Activities under the Tennessee Multi-Sector General NPDES Permit (TMSP)

Facility Name: ... .TVA - Sequoyah Nuclear. Plant TMSP .Number: . TNR050015 Contact Person: Millicent Garland Phone Number: 423-843-6714 This report is submitted for the following calendar year (e.g. 2013): 12018 Outfall Number: SW9 List all TMSP sectors which apply to discharge from this outfall: lo Sample Date: 09/06/2018 LOW CONCENTRATION WAIVER (See Instructions 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.

Parameters:

DIRECTIONS: In the spaces below, provide the results of storm water monitoring for the designated outfall. 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 permit and analyze for the parameters that apply. If parameter is not listed below, submit additional sheets. All samples should be collected by grab technique.

Parameter ' Benclini;trk A.nnu~I Saniple

• Parameter ( continued) .Bertchmark Annual Sample (ing/L) Result (mg/L) (mg/L). .Result (mg/L)

Aluminum, Total 0.75 n/a Magnesium, Total 0.064 n/a Ammonia 4.0 n/a Mercury, Total 0.0024 n/a Arsenic, Total 0.15 n/a Nickel, Total 0.875 n/a BOD, 5-Day 30 n/a .. Nitrate + Nitrite Nitrogen 0.68 n/a Cadmium, Total 0.0021 n/a Oil and Grease 15 n/a Chromium, Total 1.8 n/a pH 5.0-9.0 n/a COD 120 n/a Phenols 0.016 n/a Copper, Total O.Dl8 n/a Phosphorus, Total (as P) 2.0 n/a Cyanide, Total 0.022 n/a .. Selenium, Total 0.005 n/a Fluoride 1.8 n/a '1'. Silver, Total 0.0038 n/a Iron, Total 5.0 3.11 Total Suspended Solids (TSS) 150 n/a Lead, Total 0.156 n/a Zinc, Total 0.395 n/a CERTIFICATION AND SIGNATURE Make all entries in ink. 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.

I certify under penalty of law that this document and all attachments were prepared by me, or unde

• ction or supervision. The submitted information is to the best ofmy knowledge and belief, true, accurate, and complete. I am e that there are s1 ificant penalties for submitting false information, including the possibility of fine and imprisonment. As specified

• ennessee Code Annot t6d Section 39-16-702(a)(4), this declaration is made under penalty of perjury.

Anthony L. Williams Permittee name (print or type) Official Title Date

1. The purpose of this form is to report stormwater monitoring results under the TMSP. Only one sample per calendar year is required (except Sectors J & H, for more details see the TMSP at http://\rnw.tn.!lo\/em*ironment/permits/tmsp.shtml) Grab samples should be collected within the first 30 minutes (or as soon thereafter as practical, but not to exceed one hour) of when the runoff or snowmelt begins discharging. A separate form must be submitted for each outfall. If more than one sample is collected at any outfall, submit the average results of all monitoring data (for calculating average, use Y:, ofa detection level, if parameter was not detected). New facilities must conduct s~pling in the year during which permit coverage was obtained and during each following year. The completed form must be submitted by March 31 of the following year, e.g. monitoring required during 2013 calendar year is due by March 31, 2014.

2. If the results of annual stormwater runoff monitoring demonstrates that the facility has exceeded the benchmark concentration, the permittee must inform The Division's local Environmental Field Office (EFO) in writing within 30 days from the time stormwater monitoring results were received, describing the likely cause of the exceedance(s). Furthermore, within 60 days from the time stormwater monitoring results were received, the facility must review its stormwater pollution prevention plan (SWPPP), make any modifications or additions to the plan which would assist in reducing runoff concentrations to less than the benchmark concentrations for that parameter, and submit to the local EFO a summary of the proposed SWPPP modifications (including a timetable for implementation).

3. Low Concentration Waiver - When the average concentration for a pollutant calculated from monitoring data collected from the first four calendar years of monitoring is less than the benchmark concentration, a facility may waive monitoring requirements in the last annual monitoring period. This form should be used for certification oflow concentration waiver provision.

Complete, sign and date this form before it is submitted. Keep a copy of the completed form for your records. Submit the original completed and signed form to: Compliance & Enforcement Unit, William R. Snodgrass Tennessee Tower, 312 Rosa L. Parks Avenue, 11th Floor, Nashville, Tennessee 37243 or you may submit the report electronically to: DWRWater.Compliancdi:tn.goY CN-1115 (Rev. 1-14) RDA2366

TENNESSEE DEPARTMENT OF ENVIRONMENT AND CONSERVATION (TDEC)

Division of Water Resources, William R. Snodgrass Tennessee Tower, 312 Rosa L. Parks Avenue, 11th Floor, Nashville, Tennessee 37243, 1-888-891-TDEC (8332)

Annual Stormwater Monitoring Report for Stormwater Discharges Associated with Industrial Activities under the Tennessee Multi-Sector General NPDES Permit (TMSP)

Facility Name: TVA- Sequoyah Nuclear Plant 1MSP Number: TNR050015 Contact Person: Millicent Garland Phone Number: 423-843-6714 This report is submitted for the following calendar year (e.g. 2013): 2018 Outfall Number: SW13 List all 1MSP sectors which apply to discharge from this outfall: 0 Sample Date: 09/06/2018 LOW CONCENTRATION WAIVER (See Instructions 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.

Parameters:

DIRECTIONS*: In the spaces below, provide the results of storm water monitoring for the designated outfall. The parameters for which monitoring must be conducted depend on which industry sector(s) of the 1MSP applies to the discharge. Look up your sector(s) in the permit and analyze for the parameters that apply. If parameter is not listed below, submit additional sheets. All samples should be collected by grab technique.

Parameter Benchinark Annual Sample Parameter (continued) Benchmark Annual Sample (mg/L) Result (mg/L) (mg/L) Result (mg/L)

Aluminum, Total 0.75 n/a Magnesium, Total 0.064 n/a Ammonia 4.0 n/a Mercury, Total 0.0024 n/a Arsenic, Total 0.15 n/a Nickel, Total 0.875 n/a BOD, 5-Day 30 n/a Nitrate+ Nitrite Nitrogen 0.68 n/a Cadmium, Total 0.0021 n/a Oil and Grease 15 n/a Chromium, Total 1.8 n/a pH 5.0-9.0 n/a COD 120 n/a Phenols 0.016 n/a Copper, Total 0.018 n/a Phosphorus, Total (as P) 2.0 n/a Cyanide, Total 0.022 n/a Selenium, Total 0.005 n/a Fluoride 1.8 n/a Silver, Total 0.0038 n/a Iron, Total 5.0 0.401 Total Suspended Solids (TSS) 150 n/a Lead, Total 0.156 n/a Zinc, Total 0.395 n/a CERTIFICATION AND SIGNATURE Make all entries in ink. 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.

I certify under penalty of law that this document and all attachments were prepared by me, or under my direction or supervision. The submitted information is to the best of my knowledge and belief, true, accurate, and complete. I am aware are significant penalties for submitting false information, including the possibility of fine and imprisonment. As specified in essee Code otated Section 39-16-702(a)(4), this declaration is made under penalty of perjury.

Anthony L. Williams Permittee name (print or type) Official Title INSTRUCTIONS

1. The purpose of this form is to report stormwater monitoring results under the 1MSP. Only one sample per calendar year is required (except Sectors J & H, for more details see the 1MSP at http://wmv.tn.Qov/cnYironment/permits/tmsp.shtml) Grab samples should be collected within the first 30 minutes (or as soon thereafter as practical, but not to exceed one hour) of when the runoff or snowmelt begins discharging. A separate form must be submitted for each outfall. If more than one sample is collected at any outfall, submit the average results of all monitoring data (for calculating average, use Y:, of a detection level, if parameter was not detected). New facilities must conduct sampling in the year during which permit coverage was obtained and during each following year. The completed form must be submitted by March 31 of the following year, e.g. monitoring required during 2013 calendar year is due by March 31, 2014.

2. If the results of annual stormwater runoff monitoring demonstrates that the facility has exceeded the benchmark concentration, the permittee must inform The Division's local Environmental Field Office (EFO) in writing within 30 days from the time stormwater monitoring results were received, describing the likely cause of the exceedance(s). Furthermore, within 60 days from the time stormwater monitoring results were received, the facility must review its stormwater pollution prevention plan (SWPPP), make any modifications or additions to the plan which would assist in reducing runoff concentrations to less than the benchmark concentrations for that parameter, and submit to the local EFO a summary of the proposed SWPPP modifications (including a timetable for implementation).

3. Low Concentration Waiver- When the average concentration for a pollutant calculated from monitoring data collected from the first four calendar years of monitoring is less than the benchmark concentration, a facility may waive monitoring requirements in the last annual monitoring period. This form should be used for certification of!ow concentration waiver provision.

Complete, sign and date this form before it is submitted. Keep a copy of the completed form for your records. Submit the original completed and signed form to: Compliance & Enforcement Unit, William R. Snodgrass Tennessee Tower, 312 Rosa L. Parks Avenue, 11th Floor, Nashville, Tennessee 37243 or you may submit the report electronically to: D\\'R\\'ater.Comoliance*i, .to.go, CN-1115 (Rev. 1-14) RDA2366

TENNESSEE DEPARTMENT OF ENVIRONMENT AND CONSERVATION (TDEC)

Division of Water Resources, William R. Snodgrass Tennessee Tower, 312 Rosa L. Parks Avenue, 11th Floor, Nashville, Tennessee 37243, 1-888-891-TDEC (8332)

Annual Stormwater Monitoring Report for Stormwater Discharges Associated with Industrial Activities under the Tennessee Multi-Sector General NPDES Permit (TMSP)

Facility Name: TVA - Sequoyah Nuclear Plant 1MSPN~ber: TNR050015 Contact Person: Millicent Garland Phone Number: 423-843-6714 This report is submitted for the following calendar year (e.g. 2013): 2018 Outfall Number: SW18 List all 1MSP sectors which apply to discharge from this outfall: 0 Sample Date: 09/06/2018 LOW CONCENTRATION WAIVER (See Instructions 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.

Parameters:

DIRECTIONS: In the spaces below, provide the results of storm water monitoring for the designated outfall. The parameters for which monitoring must be conducted depend on which industry sector(s) of the 1MSP applies to the discharge. Look up your sector(s) in the permit and analyze for the parameters that apply. If parameter is not listed below, submit additional sheets. All samples should be collected by grab technique .

ParainJter Benchmark . Annual Sa111ple Parameter (continued) Benchmark Annual Sample (mg/L) Result (mg/L) (nig/L) Result (mg/L)

Aluminum, Total 0.75 n/a Magnesium, Total 0.064 n/a Ammonia 4.0 n/a Mercury, Total 0.0024 n/a Arsenic, Total 0.15 n/a Nickel, Total 0.875 n/a BOD, 5-Day 30 n/a Nitrate + Nitrite Nitrogen 0.68 n/a Cadmium, Total 0.0021 n/a Oil and Grease 15 n/a Chromium, Total 1.8 n/a pH 5.0-9.0 n/a COD 120 n/a Phenols 0.016 n/a Copper, Total O.D18 n/a Phosphorus, Total (as P) 2.0 n/a Cyanide, Total 0.022 n/a Selenium, Total 0.005 n/a Fluoride 1.8 n/a Silver, Total 0.0038 n/a Iron, Total 5.0 2.01 Total Suspended Solids (TSS) 150 n/a Lead, Total 0.156 n/a Zinc, Total 0.395 n/a CERTIFICATION AND SIGNATURE Make all entries in ink. 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.

I certify under penalty of law that this document and all attachments were prepared by me, or un direction or supervision. The submitted information is to the best ofmy knowledge and belief, true, accurate, and complete. I aware that there significant penalties for submitting false information, including the possibility of fine and imprisonment. As spec* in Tennessee Code An tated Section 39-16-702(a)(4), this declaration is made under penalty of perjury.

Anthony L. Williams Site Vice President, Sequoyah Permittee name (print or type) Official Title Date

1. The purpose of this form is to report stormwater monitoring results under the 1MSP. Only one sample per calendar year is required (except Sectors J & H, for more details see the 1MSP athttp://wmv.tn.gov/environment/pennits/tmsp.shtml) Grab samples should be collected within the first 30 minutes ( or as soon thereafter as practical, but not to exceed one hour) of when the runoff or snowmelt begins discharging. A separate form must be submitted for each outfall. If more than one sample is collected at any outfall, submit the average results of all monitoring data (for calculating average, use Y:, ofa detection level, if parameter was not detected). New facilities must conduct sampling in the year during which permit coverage was obtained and during each following year. The completed form must be submitted by March 31 of the following year, e.g. monitoring required during 2013 calendar year is due by March 31, 2014.

2. If the results of annual stormwater runoff monitoring demonstrates that the facility has exceeded the benchmark concentration, the permittee must inform The Division's local Environmental Field Office (EFO) in writing within 30 days from the time stormwater monitoring results were received, describing the likely cause of the exceedance(s). Furthermore, within 60 days from the time stormwater monitoring results were received, the facility must review its stormwater pollution prevention plan (SWPPP), make any modifications or additions to the plan which would assist in reducing runoff concentrations to less than the benchmark concentrations for that parameter, and submit to the local EFO a summary of the proposed SWPPP modifications (including a timetable for implementation).

3. Low Concentration Waiver- When the average concentration for a pollutant calculated from monitoring data collected from the first four calendar years of monitoring is less than the benchmark concentration, a facility may waive monitoring requirements in the last annual monitoring period. This form should be used for certification of low concentration waiver provision.

Complete, sign and date this form before it is submitted. Keep a copy of the completed form for your records. Submit the original completed and signed form to: Compliance & Enforcement Unit, William R. Snodgrass Tennessee Tower, 312 Rosa L. Parks Avenue, 11th Floor, Nashville, Tennessee 37243 or you may submit the report electronically to: DWRWatcr.Compliance*ii'.tn.gov CN-1115 (Rev. 1-14) RDA2366

TENNESSEE DEPARTMENT OF ENVIRONMENT AND CONSERVATION (TDEC)

Division of Water Resources, William R. Snodgrass Tennessee Tower, 312 Rosa L. Parks Avenue, 11th Floor, Nashville, Tennessee 37243, 1-888-891-TDEC (8332)

Annual Stonnwater Monitoring Report for Stormwater Discharges Associated with Industrial Activities under the Tennessee Multi-Sector General NPDES Permit (TMSP)

Facility Name:. TVA- Sequoyah Nuclear Plant TMSP Number: TNR050015 Contact Person: Millicent Garland Phone Number: 423-843-6714 This report is submitted for the following calendar year (e.g. 2013): 2018 Outfall Number: SW19 List all TMSP sectors which apply to discharge from this outfall: 0 Sample Date: 09/06/2018 LOW CONCENTRATION WAIVER (See Instructions 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.

Parameters:

DIRECTIONS: In the spaces below, provide the results of storm water monitoring for the designated outfall. 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 permit and analyze for the parameters that apply. If parameter is not listed below, submit additional sheets. All samples should be collected by grab technique.

Parameter Benchmark Annual Sample Parameter (continued) *Benchmark Annual Sample (mg/L) Result (mg/L) (mg/L) Result (mg/L)

Aluminum, Total 0.75 n/a Magnesium, Total 0.064 n/a Ammonia 4.0 n/a Mercury, Total 0.0024 n/a Arsenic, Total 0.15 n/a Nickel, Total 0.875 n/a BOD, 5-Day 30 n/a Nitrate + Nitrite Nitrogen 0.68 n/a Cadmium, Total 0.0021 n/a Oil and Grease 15 n/a Chromium, Total 1.8 n/a pH 5.0-9.0 n/a COD 120 n/a Phenols 0.016 n/a Copper, Total O.D18 n/a Phosphorus, Total (as P) 2.0 n/a Cyanide, Total 0.022 n/a Selenium, Total 0.005 n/a Fluoride 1.8 n/a Silver, Total 0.0038 n/a Iron, Total 5.0 3.57 Total Suspended Solids (TSS) 150 n/a Lead, Total 0.156 n/a Zinc, Total 0.395 n/a CERTIFICATION AND SIGNATURE Make all entries in ink. 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.

I certify under penalty of law that this document and all attachments were prepared by me, or under my direction or supervision. The submitted information is to the best ofmy knowledge and belief, true, accurate, and complete. I am aw ere are significant penalties for submitting false information, including the possibility of fine and imprisonment. As specifie ennessee Code notated Section 39-16-702(a)(4), this declaration is made under penalty of perjury.

Anthony L. Williams Permittee name (print or type) Official Title Date

1. The purpose of this form is to report stormwater monitoring results under the TMSP. Only one sample per calendar year is required (except Sectors J & H, for more details see the TMSP at http://wm1*.tn.2:ov/enviro11ment/pennits/tmsp.shtml) Grab samples should be collected within the first 30 minutes (or as soon thereafter as practical, but not to exceed one hour) of when the runoff or snowmelt begins discharging. A separate form must be submitted for each outfall. If more than one sample is collected at any outfall, submit the average results of all monitoring data (for calculating average, use Yi ofa detection level, if parameter was not detected). New facilities must conduct sampling in the year during which permit coverage was obtained and during each following year. The completed form must be submitted by March 31 of the following year, e.g. monitoring required during 2013 calendar year is due by March 31, 2014.

2. If the results of annual stormwater runoff monitoring demonstrates that the facility has exceeded the benchmark concentration, the permittee must inform The Division's local Environmental Field Office (EFO) in writing within 30 days from the time stormwater monitoring results were received, describing the likely cause of the exceedance(s). Furthermore, within 60 days from the time stormwater monitoring results were received, the facility must review its stormwater pollution prevention plan (SWPPP), make any modifications or additions to the plan which would assist in reducing runoff concentrations to less than the benchmark concentrations for that parameter, and submit to the local EFO a summary of the proposed SWPPP modifications (including a timetable for implementation).

3. Low Concentration Waiver - When the average concentration for a pollutant calculated from monitoring data collected from the first four calendar years of monitoring is less than the benchmark concentration, a facility may waive monitoring requirements in the last annual monitoring period. This form should be used for certification oflow concentration waiver provision.

Complete, sign and date this form before it is submitted. Keep a copy of the completed form for your records. Submit the original completed and signed form to: Compliance & Enforcement Unit, William R. Snodgrass Tennessee Tower, 312 Rosa L. Parks Avenue, 11th Floor, Nashville, Tennessee 37243 or you may submit the report electronically to: D\\'RWatcr.Compliancc*it'tn.go\'

CN-1115 (Rev. 1-14) RDA2366

TENNESSEE DEPARTMENT OF ENVIRONMENT AND CONSERVATION (TDEC)

Division of Water Resources, William R. Snodgrass Tennessee Tower, 312 Rosa L. Parks Avenue, 11th Floor, Nashville, Tennessee 37243, 1-888-891-TDEC (8332)

Annual Stormwater Monitoring Report for Stormwater Discharges Associated with Industrial Activities under the Tennessee Multi-Sector General NPDES Permit (TMSP)

F~ility-Name; ITVA - Sequoyah Nuclear Plant TMSPNumber: TNR050015 Contact Person: IMillicent Garland Phone Number: 423-843-6714 This report is submitted for the following calendar year (e.g. 2013): 12018 Outfall Number: SW21 List all TMSP sectors which apply to discharge from this outfall: lo Sample Date: 09/06/2018 LOW CONCENTRATION WAIVER (See Instructions 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.

Parameters:

DIRECTIONS: In the spaces below, provide the results of storm water monitoring for the designated outfall. 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 permit and analyze for the parameters that apply. If parameter is not listed below, submit additional sheets. All samples should be collected by grab technique.

Parameter Benchmark Annual Sample Parameter (continued) Benchmark Annual Sample (mg/L) Result (mg/L) '(mg/L) Result (mg/L)

Aluminum, Total 0.75 n/a Magnesium, Total 0.064 n/a Ammonia 4.0 n/a Mercury, Total 0.0024 n/a Arsenic, Total 0.15 n/a Nickel, Total 0.875 n/a BOD, 5-Day 30 n/a Nitrate + Nitrite Nitrogen 0.68 n/a Cadmium, Total 0.0021 n/a Oil and Grease 15 n/a Chromium, Total 1.8 n/a pH 5.0-9.0 n/a COD 120 n/a Phenols 0.016 n/a Copper, Total 0.018 n/a Phosphorus, Total (as P) 2.0 n/a Cyanide, Total 0.022 n/a Selenium, Total 0.005 n/a Fluoride 1.8 n/a Silver, Total 0.0038 n/a Iron, Total 5.0 1.40 Total Suspended Solids (TSS) 150 n/a Lead, Total 0.156 n/a Zinc, Total 0.395 n/a CERTIFICATION AND SIGNATURE Make all entries in ink. 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.

I certify under penalty of law that this document and all attachments were prepared by me, or under my direction or supervision. The submitted information is to the best ofmy knowledge and belief, true, accurate, and complete. I am a e significant penalties for submitting false information, including the possibility of fine and imprisonment. As specifie ennessee Code Anno ated Section 39-16-702(a)(4), this declaration is made under penalty of perjury.

Anthony L. Williams Permittee name (print or type) Official Title Date INS

1. The purpose of this form is to report stormwater monitoring results under the TMSP. Only one sample per calendar year is required (except Sectors J & H, for more details see the TMSP at http://wmv.tn.gov/environment/perrnits/tmsp.shtml) Grab samples should be collected within the first 30 minutes (or as soon thereafter as practical, but not to exceed one hour) of when the runoff or snowmelt begins discharging. A separate form must be submitted for each outfall. If more than one sample is collected at any outfall, submit the average results of all monitoring data (for calculating average, use Yi ofa detection level, if parameter was not detected). New facilities must conduct sampling in the year during which permit coverage was obtained and during each following year. The completed form must be submitted by March 31 of the following year, e.g. monitoring required during 2013 calendar year is due by March 31, 2014.

2. If the results of annual stormwater runoff monitoring demonstrates that the facility has exceeded the benchmark concentration, the permittee must inform The Division's local Environmental Field Office (EFO) in writing within 30 days from the time stormwater monitoring results were received, describing the likely cause of the exceedance(s). Furthermore, within 60 days from the time stormwater monitoring results were received, the facility must review its stormwater pollution prevention plan (SWPPP), make any modifications or additions to the plan which would assist in reducing runoff concentrations to less than the benchmark concentrations for that parameter, and submit to the local EFO a summary of the proposed SWPPP modifications (including a timetable for implementation).

3. Low Concentration Waiver - When the average concentration for a pollutant calculated from monitoring data collected from the first four calendar years of monitoring is less than the benchmark concentration, a facility may waive monitoring requirements in the last annual monitoring period. This form should be used for certification oflow concentration waiver provision.

Complete, sign and date this form before it is submitted. Keep a copy of the completed form for your records. Submit the original completed and signed form to: Compliance & Enforcement Unit, William R. Snodgrass Tennessee Tower, 312 Rosa L. Parks Avenue, 11th Floor, Nashville, Tennessee 37243 or you may submit the report electronically to: DWRWatcr.Compliance*,dn.go, CN-1115 (Rev. 1-14) RDA2366