ML14164A400

NPDES Permit No. TN0026450, Discharge Monitoring Report (DMR) for May 2014

ML14164A400
Person / Time
Site:	Sequoyah
Issue date:	06/11/2014
From:	John Carlin Tennessee Valley Authority
To:	Morgan C Office of Nuclear Reactor Regulation, State of TN, Dept of Environment & Conservation, Div of Water Resources
References
TN0026450
Download: ML14164A400 (9)

Text

Tennessee Valley Authority, Post Office Box 2000, Soddy Daisy, Tennessee 37384-2000 June 11, 2014 Ms. Christina Morgan 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

Dear Ms. Morgan:

TENNESSEE VALLEY AUTHORITY (TVA) - SEQUOYAH NUCLEAR PLANT (SQN) - NPDES PERMIT NO. TN0026450 - DISCHARGE MONITORING REPORT (DMR) FOR MAY 2014 Enclosed is the May 2014 Discharge Monitoring Report for Sequoyah Nuclear Plant. The turbine building sump (TBS) was discharged directly to the yard drainage pond during the reporting period and was monitored in accordance with the narrative condition found in Part 1.A.2 of the subject permit.

Also enclosed are two attachments containing information regarding a sewage manhole overflow that occurred during the reporting period and TBS monitoring data. At no time has there been any observed threat to public drinking supplies, to human health, or the environment.

If you have any questions or need additional information, please contact Spencer Whittier by email at sdwhittier@tva.gov or by phone at (423) 843-6714.

I certify underpenalty of law that this document and all attachments were preparedunder 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 significantpenalties for submitting false information, including the possibility of fine and imprisonment for knowing violations.

Sinc rely T arlin Vi President yah Nuclear Plant Enclosures cc (Enclosures):

Chattanooga Environmental Field Office U.S. Nuclear Regulatory Commission Division of Water Pollution Control Attn: Document Control Desk State Office Building, Suite 550 Washington, DC 20555 540 McCallie Avenue Chattanooga, Tennessee 37402-2013

PERMITTEE NAME/ADDRESS (Include FacilityName/Location if Different) NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES) MAJOR Form Approved.

TVA - SEQUOYAH NUCLEAR PLANT DISCHARGE MONITORING REPORT (DMR) OMB No. 2040-0004 Name Address P.O. BOX 2000 (SUBR 01 )

- - - (NTEROFFICE OPS-5N-SQNN.

SODDY - DAISY TN 37384 PERMIT NUMBER DISCHARGE NUMBER DIFFUSER DISCHARGE Facility TVA - SEQUOYAH NUCLEAR PLANT Location HAMILTON COUNTY MONITORINO PFRIOD I EFFLUENT IYAR MO*DAY EAR DA No DISCHARGEM ATTN: Spencer Whittier From 1401- 0 To5 1 05 N1

'U I IT.:Reao instructions oerore completinq this form.

PARAMETER QUANTITY OR LOADING QUALITY OR CONCENTRATION NO. FREQUENCY SAMPLE EX OF TYPE ANALYSIS AVERAGE MAXIMUM UNITS MINIMUM AVERAGE MAXIMUM UNITS TEMPERATURE, WATER DEG. SAMPLE ***34.9 04 0 31 / 31 RCORDR CENTIGRADE MEASUREMENT 00010 1 0 .. PERMIT ..... <. Req. Mon.. DEG. C. CONTI CALCTD EFFLUENT GROSSREQUIREMENT  !>. ... . . . .. .. ". " ". .... _

E....L N R S. " .,. . .... . .. .; . :, . iDAILY MAX._ NUOUS .__

TEMPERATURE, WATER DEG. SAMPLE ** 25.8 04 0 31 131 MODELD CENTIGRADE MEASUREMENT 00010 Z 0 REQUIREMENT .*.:.,,,,PERMIT

" . :" ..  :. .. , ."... :*. , * " 2 D 30.5

.i' I Y x '.*.. DEG. C. .. N CONTI O S; CALCTD INSTREAM MONITORING REQUREM NT .. ,. . .. . AL M .. .NUOUS TEMP. DIFF. BETWEEN SAMP. & SAMPLE 2 04 0 31 / 31 CALCTD UPSTRM DEG.C MEASUREMENT 00016 1 S PERMIT 3 DEG. C. CONTI. CALCTD EFFLUENT GROSS R E.....,.N ...... ... DAL...UOUS FLOW, IN CONDUIT OR THRU SAMPLE 1721 03 ** 0 31 /31 RCORDR TREATMENT PLANT MEASUREMENT 50050 1 0 .PERMIT . . Req. Mon., MGD . . .. * .*** " "." . '" CONTI... RCORDR

.P' EFFLUENT GROSS REQUIREMENT DAILY MA . . .........  :. ,NUOUS CHLORINE, TOTAL RESIDUAL SAMPLE ** 0.016 0.026 19 0 17/31 GRAB MEASUREMENT 50060 1 0 ., *PERMIT, ..... ** * * . 0.1 0.1 . MGIL FIVE PER. CALCTD EFFLUENT GROSS .

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• MO UAG ..: DA ILY M'.AVIL AX._"EK X W K .

,i WEREQUIREMENT . . .

TEMPERATURE - C, RATE OF SAMPLE *0 6* 0 31/31 CALCTD CHANGE MEASUREMENT 82234 1 0 REQPERMiT*

UIREM ENT  :.. "* , .::.. . .* "... 2 DEG . .' .. ' " " ... ** *." . *. CONTI

. "... CALCTD.'

EFFLUENT GROSS REQUIREMEN . .. DAILY MX C/HR .NUOUS ._.....

SAMPLE MEASUREMENT PERMIT REQUIREMENT "

NAME/TITLE PRINCIPAL EXECUTIVE OFFICER // DATE I I Certify under penalty of law that this document and all attachments were prepared under my TELEPHONE J direction or supervision in accordance with a system designed to assure that qualified John T. Carlin personnel properly gather and evaluate the information submitted. Based on my inquiry of thef person or persons who manage the system, or those persons directly responsible for gatherirg the information, the information submitted is, to the best of my knowledge and belief, true , I4kZ'6/idnt 423 843-7001 14 06 11 Site Vice President accurate, and complete. I am aware that there are significant penalties for submitting false -t f UR OF PRINCIPAL EXECUTIVE nformation, including the possibility of fine and imprisonment for knowing violations. :G'CER OR AUTHORIZED AGENT AREA NUMBER YEAR MO DAY TYPED OR PRINTED CODE COMMENTS AND EXPLANATION OF ANY VIOLATIONS (Reference all attachments here)

No closed mode operation. The following injections occurred: 1. Spectrus CT1 300 (max. calc. conc. was 0.038 mg/L--limit 0.050 mg/L)

EPA Form 3320-1 (REV 3/99) Previous editions may be used Page 1 of 1

PERMITTEE NAME/ADDRESS (Include Facility Name/Location if Different) NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES) MAJOR Form Approved.

TVA - SEQUOYAH NUCLEAR PLANT DISCHARGE MONITORING REPORT (DMR) (SUER 01) OMB No. 2040-0004 Name Address P.O. BOX 2000

-- INTEROFFICE OPS-5N-SQN) TN0026450 V 7101 T F - FINAL SODDY - DAISY, TN 373.3_84 PERMIT NUMBER DISCHARGE NUMBER BIOMONITORING FOR OUTFALL 101 Facility TVA - SEQUOYAH NUCLEAR PLANT Location HAMILTON COUNTY MmNITOmRINt PFRInfr I EFFLUENT SYEARI MO !DAY I YEARI 0 DAY *NODSHRE7 O* NO DISCHARGE

• ATTN: Spencer Whittier From! 14 05 1 ] To NOTE: Read instructions before completinl this form.

PARAMETER QUANTITY OR LOADING QUALITY OR CONCENTRATION NO. FREQUENCY SAMPLE EX OF TYPE ANALYSIS AVERAGE MAXIMUM UNITS MINIMUM AVERAGE MAXIMUM UNITS

_____ -I- + ~-i -I -I

• **W * *** *

• IC25 STATRE 7DAY CHR SAMPLE Other MEASUREMENT 23 CERIODAPHNIA TRP3B 1 0 PERMIT ** ** * * *

• 43.2 ** * *

• PERCENT SEMI COMPOS EFFLUEINT GROSS REQUIREMENT I*1IMKI1 IM ANNUAL IC25 STATRE 7DAY CHR SAMPLE Other 23 PIMEPHALES MEASUREMENT TRP6C 1 0 PERMIT

• 43.2 ***** PERCENT SEMI COMPOS EFFLUENT GROSS REQUIREMENT MIMINUM ANNUAL SAMPLE MEASUREMENT PERMIT REQUIREMENT SAMPLE MEASUREMENT PERMIT REQUIREMENT SAMPLE MEASUREMENT PERMIT REQUIREMENT SAMPLE MEASUREMENT PERMIT REQUIREMENT SAMPLE MEASUREMENT PERMIT REQUIREMENT NAME/TITLE PRINCIPAL EXECUTIVE OFFICER I Certify under penally of law that this document and all attachments were prepared under m TELEPHONE DATE direction or supervision in accordance with a system designed to assure that qualified John T. Carlin personnel properly gather and evaluate the information submitted. Based on my inquiry of th ,.

person or persons who manage the system, or those persons directly responsible for gatherin "- -- i Vre e dent 423 843-7001 14 06 11 the information, the information submitted is, to the best of my knowledge and belief, true, Site Vice President accurate, and complete. I am aware that there are significant penalties for submitting false SIGNAtURP'OF PRINCIPAL EXECUTIVE information, including the possibility of fine and imprisonment for knowing violations. OFFICER OR AUTHORIZED AGENT AREA NUMBER YEAR MO DAY TYPED OR PRINTED I CODE COMMENTS AND EXPLANATION OF ANY VIOLATIONS (Reference all attachments here)

Toxicity sampling occurred May 4-9. The test results have not been received. The May DMR for TN toxicity will be revised and included with the June DMR.

EPA Form 3320-1 (REV 3/99) Previous editions may be used Page I of I

PERMII-TEE NAME/ADDRESS (Include FacilityName/Location if Different) NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES) MAJOR Form Approved.

Name TVA - SEQUOYAH NUCLEAR PLANT DISCHARGE MONITORING REPORT (DMR)

(SUBR 01) OMBtI4o. 2040-0004 Address P.O. BOX 2000

- L

.NTEOFFjCE OPS-5N-SQN)._. TN0026450 l 103 G F-FINAL SODDY - DAISY, TN 37384 PERMIT NUMBE DBER LOW VOL. WASTE TREATMENT POND Facil_ TVA - SEQUOYAH NUCLEAR PLANT Location HAMILTON COUNTY MONITORING PERIOD EFFLUENT

-AR 05 1 DY 1IYEARI MO i DAY NO DISCHARGE =

• ATTN: Spencer Whittier FromF L4Li5 1 T 14 05 131 NOTE: Read instructions before completinq this form.

CONCENTRATION NO. FREQUENCY SAMPLE I PARAMETER QUANTITY OR LOADING QUALITY OR QUALITY OR CONCENTRATION NO. FREQUENCY SAMPLE EX OF ITYPE AVERAGE UNITS ANALYSIS AVERAGE MAXIMUM UNITS MINIMUM MAXIMUM PH SAMPLE MEASUREMENT

• • • 7 8 12 0 16 /31 GRAB 00400 1 0 PERMIT

• MINIMUM66_" _MAXIMUM 9 SU THREE/

WEEK GRAB EFFLUENT GROSS REQUIREMENT SOLIDS, TOTAL SUSPENDED MPLE ** **

• 8 10 19 0 2/31 GRAB 00530 1 0 PERMIT --30 100 MX MG/L TWICE/

MONTH GRAB REQUIREMENT MO AVG DAILY EFFLUENT GROSS 9 2 3 GR A B

• 5 <IV1 A

M O*5*

O IL A N D G R E A S E SA MP LE 19 MEASUREMENT 00556 1 0 PERMIT EFFLUENT GROSS REMO AVG DAILY MX MONTH FLOW, IN CONDUIT OR THRU SAMPLE 1.020 1.938 03 0 31/31 RuORDR TREATMENT PLANT MEASUREMENT 50050 1 0 PERMIT Req. Mon. Req. Mon MGD *** SEE RCORDR REQUIREMENT MO AVG DAILY MX PERMIT EFFLUENT GROSS SAMPLE MEASUREMENT PERMIT REQUIREMENT SAMPLE MEASUREMENT PERMIT REQUIREMENT SAMPLE MEASUREMENT PERMIT REQUIREMENT NAME/TITLE PRINCIPAL EXECUTIVE OFFICER I Certify under penalty of law that this document and all attachments were prepared under my TELEPHONE DATE I direction or supervision in accordance with a system designed to assure that qualified John T. Carlin personnel property 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, 423 843-7001 14 06 11 Site Vice President accurate, and complete. I am aware that there are significant penalties for submitting false SINAUR OF PRINCIPAL EXECUTIVE information, including the possibility of fine and imprisonment for knowing violations. OFF1CR OR AUTHORIZED AGENT CARE NUMBER YEARI MO DAY TYPED OR PRINTED I4 [ CODE COMMENTS AND EXPLANATION OF ANY VIOLATIONS (Reference all attachments here)

The Turbine Building Sump (TBS) was discharged directly to the Yard Pond (YP) on 05/7/14-05/9/14 and 05/23/14-05/26/14. Monitoring data is included in attachment 2.

EPA Form 3320-1 (REV 3199) Previous editions may be used Page I of 1

PERMITTEE NAME/ADDRESS (Include FacilityName/Location if Different) NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES) MAJOR Form Approved.

DISCHARGE MONITORING REPORT (DMR) OMB No. 2040-0004 Name TVA - SEQUOYAH NUCLEAR PLANT (SUBR 01 )

Address. P.O. BOX 2000

-INTEROFFICE OPS-5N-SQN. TN0026450 110 G F-FINAL SODDY - DAISY, TN 37384_- - - PERMIT NUMBER DISCHARGE NUMER RECYCLED COOLING WATER Faci TVA - SEQUOYAH NUCLEAR PLANT Location HAMILTON COUNTY MONITORING PERIOD EFFLUENT IYEARI MO I DAY I YEARI MO I AY From 14 05 j 01 To4 0Sj31

... NO DISCHARGE fj **

ATTN: Spencer Whittier NOTE: Read instructions before completinq this form.

PARAMETER QUANTITY OR LOADING QUALITY OR CONCENTRATION NO. FREQUENCY SAMPLE

><ý EX OF TYPE AVERAGE MAXIMUM UNITS MINIMUM AVERAGE MAXIMUM UNITS ANALYSIS I

TEMPERATURE, WATER DEG. SAMPLE ** ** * * *

• MEASUREMENT 04 CENTIGRADE 00010 1 0 PERMIT ** ** ** *

• REPO*RT DEG C CONTIN CALCTD, REQUIREMENT EFFLUENT GROSS VALUE DAILY MX UOUS

"*~ ** *'

• TEMPERATURE, WATER DEG. SAMPLE ** ** * * * *

.04 CENTIGRADE MEASUREMENT 00010 Z 0 PERMIT: * *

... 30.5 DEG C . CONTIN .CALCTD INSTREAM MONITORING REQUIREMENT DAILY MX UOUS TEMP. DIFF. BETWEEN SAMP. & SAMPLE ** ** * * *

• MEASUREMENT 04 UPSTRM DEG.C i1*

llk 00016 1 0 "PERMIT" ** ** * **

• 5,. DEG C ". CONTIN CALCTD REQUIREMENT EFFLUENT GROSS VALUE DAILY MX UOU.S

-I- 4* _______ . . .

FLOW, IN CONDUIT OR THRU SAMPLE * ** * * **

• MEASUREMENT 03 TREATMENT PLANT 50050 1 0 PERMIT Req. Mon. MGD *CONTIN RCORDR

REQUIREMENT EFFLUENT GROSS VALUE DAILY MX UQUS CHLORINE, TOTAL RESIDUAL SAMPLE ** ** * * *

• MEASUREMENT 19 50060 1 0 PERMIT 0.,1 D 0.1 X MG/L Five per -CALCTD EFFLUENT GROSS VALUE REQUIREMENT MO AVG ,"DAILY MX "Week/.

• • • *** *"k

• TEMPERATURE - C, RATE OF SAMPLE MEASUREMENT 04 CHANGE

• • CONTIN CALCTD, 82234 1 0 PERMIT.

REQUIREMENT 2' DEG C ** ** * * ** ** * *

• EFFLUENT GROSS VALUE UQUS

. DAILY MX -4 -I -

SAMPLE MEASUREMENT PIERMIT' REQUIREMENT

( k~k\.A 't ~ ______________ _____________

NAME/TITLE PRINCIPAL EXECUTIVE OFFICER I Certify under penalty of law that this document and all attachments were prepared under my TELEPHONE DATE direction or supervision in accordance with a system designed to assure that qualified John T. Carlin 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 ite 'e res ent the information, the information submitted is. to the best of my knowledge and belief, true, 423 843-7001 14 06 11 Site Vice President laccurate, and complete. I am aware that there are significant penalties for submitting false SIGI~IA)O/PRINCIPAL EXECUTIVE TYPED OR PRINTED information, including the possibility of fine and imprisonment for knowing violations. OFFICEOR AUTHORIZED AGENT AREA NUMBER yEAR MO DAY TYPED OR PRINTED CODE V COMMENTS AND EXPLANATION OF ANY VIOLATIONS (Reference all attachments here)

No Discharge this Period EPA Form 3320-1 (REV 3199) Previous editions may be used Page I of 1

PERMITTEE NAME/ADDRESS (Include Facility Name/Location if Different) NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES) MAJOR Form Approved.

Name TVA - SEQUOYAH NUCLEAR PLANT DISCHARGE MONITORING REPORT (DMR) (SUER 01) OMB No. 2040-0 004 Address P.O. BOX 2000 T02645o ttDSHRf110 T

.(.INTEROFFICE OPS-5N-SQ.N)....

SODDY - DALSY. 37384

. FO !F F -FINAL IA NUMBER DCHARGE NUMBER RECYCLED COOLING WATER Facilit. TVA - SEQUOYAH NUCLEAR PLANT

_Location HAMILTON COUNTY ,ONITORING PERIOD L EFFLUENT YEARi MO D E M D NO DISCHARGE ATTN: Spencer Whittier F:ro m . 14 1 05 01 ] To l 14 1 0 5 1 311 NOF Rea before....

NOTE: Read instructions before comnp etingl this form.

PARAMETER QUANTITY OR LOADING QUALITY OR CONCENTRATION NO. FREQUENCY SAMPLE EX OF TYPE AVERAGE MAXIMUM UNITS MINIMUM AVERAGE MAXIMUM UNITS ANALYSIS 1C25 STATRE 7DAY CHR SAMPLE

• MEASUREMENT 23 CERIODAPHNIA TRP3B 1 0 0 PERMIT **43.2 ******** PERCENT SEMI COMPOS EFFLUENT GROSS VALUE REQUIREMENTMINIMUM ANNUAL IC25 STATRE 7DAY CHR SAMPLE **

PIMEPHALES MEASUREMENT 23 TRP6C 1 0 0 PERMIT *** ***

• 43. 2*

• PERCENT SEMI COMPOS REQUIREMENT EFFLUENT GROSS VALUE MINIMUM ANNUAL SAMPLE MEASUREMENT PERMIT REQUIREMENT SAMPLE MEASUREMENT PERMIT REQUIREMENT SAMPLE MEASUREMENT PERMIT REQUIREMENT SAMPLE MEASUREMENT PERMIT REQUIREMENT SAMPLE MEASUREMENT PERMIT REQUIREMENT N

John T. Carlin

'AVE/TITLE PRINCIPAL EXECUTIVE OFFICER 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, I Certify the information under penalty of law thatsubmitted is, to the this document and best of my knowledge all attachments were prepared and belief,under true, my/

(- 4jaAtice ',Vs&,det 423 TELEPHONE 843-7001 14 DATE 06T 11 Site Vice President accurate, and complete. I am aware that there are significant penalties for submitting false SIGNATURE OF PRINCIPAL EXECUTIVE I I NUMBER -I' YEAR I MO information, including the possibility of fine and imprisonment for knowing violations. OFFICER OR AUTHORIZED AGENT AREA DAY TYPED OR PRINTED CODE COMMENTS AND EXPLANATION OF ANY VIOLATIONS (Reference all attachments here)

No Discharge this Period EPA Form 3320-1 (REV 3/99) 3320-1 (REV 3199) Previous editions be used may be editions may used Pagelof 1 EPA Form Previous Page 1 of 1

PERMITTEE NAME/ADDRESS (Include FacilityName/Location if Different) NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES) MAJOR Form Approved.

DISCHARGE MONITORING REPORT (DMR)

Name TVA - SEQUOYAH NUCLEAR PLANT (SUBR 01) OMB No. 2040-0004 Address P.O. BOX 2000

--- ,JINTEROFFCE OPS-EN-SQN. TN0026 1 11 F - FINAL SODDY - DAISY TN. 37384 PERMIT NUMBER DISCHARGEINUMBER WASTEWATER & STORM WATER Faciity rVA - SEQUOYAH NUCLEAR PLANT f - ftAn~f f-% I- 01r% I1 EFFLUENT Location HAMILTON COUNTY V~..JI'iI I .JIXII'4..5 rLrxI\.JL, I YEAR I MO DAY I Y BI I D YNO DISCHARGE -- .

ATTN: Spencer Whittier From L141j05101 To l141051 I NO Rei b

• NOTE: Read instructions before completinq this form.

PARAMETER QUANTITY OR LOADING QUALITY OR CONCENTRATION NO. FREQUENCY SAMPLE EX OF TYPE MAXIMUM UNITS MINIMUM AVERAGE MAXIMUM UNITS ANALYSIS AVERAGE OXYGEN, DISSOLVED (DO) SAMPLE MEASUREMENT 19 1

00300 1 0 PERMIT

• 2  ;

• MGIL TWICEI GRAB REQUIREMENT ...... MIWEEK EFFLUENTGROSSINIMUM SOLIDS, TOTAL SUSPENDED SAMPLE MEASUREMENT .****19

-1 00530 1 0 PERMIT *

• 100 MG/L TWICE/ GRAB EFFLUENT GROSS REQUIREMENT DAILY MX WEEK SOLIDS, SETTLEABLE SAMPLE 25 MEASUREMENT 25 00545 1 0 PERMIT *

• MUL ONCE/ GRAB EFFLUENT GROSS REQUIREMENT DAILY MX MONTH FLOW, IN CONDUIT OR THRU SAMPLE 03* **

MEASUREMENT 03 TREATMENT PLANT 50050 1 0 PERMIT Req. Mon. Req. Mon. MGD ******* * *****ONCE/ ESTIMA EFFLUENT GROSS REQUIREMENT MO.AVG -DAILY MX . BATCH __BATC SAMPLE MEASUREMENT PERMIT REQUIREMENT SAMPLE MEASUREMENT PERMIT REQUIREMENT SAMPLE MEASUREMENT PERMIT REQUIREMENT NAME/rITLE PRINCIPAL EXECUTIVE OFFICER I Certify under penalty of law that this document and all attachments were prepared under my TELEPHONE DATE direction or supervision in accordance with a system designed to assure that qualified John T. Carlin 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, __ 423 843-7001 14 06 11 Site Vice President accurate, and complete. I am aware that there are significant penalties for submitting false SIGNAT,.RE-OF PRINCIPAL EXECUTIVE information, including the possibility of fine and imprisonment for knowing violations. OFFICER OR AUTHORIZED AGENT AREAI NUMBER YEAR MO DAY TYPED OR PRINTED CoDE COMMENTS AND EXPLANATION OF ANY VIOLATIONS (Reference all attachments here)

During this reporting period, there has been no flow from the Dredge Pond other than that resulting from rainfall. No Discharge this Period EPA Form 3320-1 (REV 3199) Previouseditions may be used Page 1 of 1

TVA Sequoyah Nuclear Plant NPDES Permit No. TN0026450 Attachment 1 Description of the Event and Determination of Cause On May 19, 2014, at 02:00 EDT at SQN, it was reported that a sewage system manhole was overflowing to a nearby yard drain. The manhole is located between the Security/NRC Building and the Multipurpose Building. The Shift Manager and Outage Control Center was notified of the low-flow sewage overflow and directed sandbags to be placed around yard drain. Chemistry verified by sight, smell, and fecal coliform analysis that the sewage did enter the drain. The site estimates that less than five gallons entered the yard drain. Facilities removed a large mass of paper towel from the sewage manhole drainage line. All remaining sewage residue in the road was neutralized with lime. The yard drain flows to the SQN Yard Drainage Pond, which discharges to the Diffuser Pond. The Diffuser Pond discharges through Outfall 101 to the Tennessee River. At no time was there any observed threat to the public drinking supplies, to human health, or the environment.

Steps Being Taken to Reduce, Eliminate, and Prevent Recurrence This incident was entered into the TVA Corrective Action Program. A site wide communication was promptly distributed instructing employees to not flush paper towels in the restroom facilities. Measures are being taken to replace paper towels in the restrooms with air hand dryers to minimize potential for recurrence. Sequoyah continues daily monitoring of the sewage manhole.

TVA Sequoyah Nuclear Plant NPDES Permit No. TN0026450 Attachment 2 Turbine Building Sump Monitoring Data The turbine building sump was discharged directly to the yard drainage pond from 05/07/2014 to 05/09/2014, and from 05/23/2014 to 05/26/2014. During this period, the turbine building sump was monitored in accordance with the narrative condition found in Part 1 .A.2 of NPDES Permit TN0026450.

Parameter Daily Minimum Monthly Average Daily Maximum No. of Samples Flow - 1.525 MGD 2.016 MGD 7 pH 7 s.u. 9 s.u. 7 O&G - < 5 mg/L < 5 mg/L 7 TSS 9 mg/L 13 mg/L 7