Text

Tennessee Valley Authority (TVA)- Watts Bar Nuclear Plant (WBN)- NPDES Permit No. TN0020168-Application Request for Permit Renewal
	ML21202A224
Person / Time
Site:	Watts Bar
Issue date:	07/02/2021
From:	Pearman P; Tennessee Valley Authority
To:	Janjic V; Document Control Desk, Office of Nuclear Reactor Regulation, State of TN, Dept of Environment & Conservation
References
	TN0020168
	Download: ML21202A224 (110)
	v • d • e

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TENNESSEE VALLEY AUTHORITY 1101 Market Street, BR 2C, Chattanooga, Tennessee 37402 Sent Via Electronic Transmittal July 2, 2021 Mr. Vojin Janji6 (water.permits@tn.gov)

Manager, Water-Based Systems Division of Water Resources Tennessee Department of Environment and Conservation William R. Snodgrass Tennessee Tower 312 Rosa L. Parks Avenue, 11th Floor Nashville, Tennessee 37243

Dear Mr. Janji6:

TENNESSEE VALLEY AUTHORITY (TVA)-WATTS BAR NUCLEAR PLANT (WBN)- NPDES PERMIT NO. TN0020168-APPLICATION REQUEST FOR PERMIT RENEWAL TVA requests that a renewal NPDES permit be issued for WBN operations, which will expire on December 31, 2021. Enclosed is an NPDES application package, which includes completed EPA Form 1, site map, Form 2C, flow schematic, and a permit address form. Sampling for the analytical data provided in this application occurred in February 2021 and historical data were compiled from the period of July 2018 through February 2021.

TVA would appreciate consideration of the following in the renewed permit.

OSN 101, IMP 103, and OSN 113

1. Please note in Form 2C Table B Section 2, Organic Toxic Pollulants, the lab analyzed four grab samples individually instead of compositing in the laboratory prior to analyses, all results were nondetect and TVA does not believe the analysis method affected the results.

Additional Requests

1. TVA requests that the following language be retained in Part I.A. to avoid the need for preparing a separate water quality certification for the Nuclear Regulatory Commission.

This TN-NPDES permit also constitutes the State's certification under Section 401 of the Clean Water Act for the purpose of obtaining any federal license for activities resulting in the discharges covered under the TN-NPDES permit.

2. Enclosed is a summary of the Reasonable Potential (RP) evaluation and whole effluent toxicity test results since 1994. As further described in the RP evaluation, TVA requests no changes from the current biomonitoring conditions at OSN 101, and 102 and that the permit language maintain consistent with the current Biocide Corrosion Treatment Plan (BCTP).

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Mr. Vojin Janjic Page2 July 2, 2021

3. The receiving stream for discharges from WBN (Tennessee River - Chickamauga Reservoir in Rhea County) is currently classified as an Exceptional Tennessee Water. For previously authorized discharges to such waters, TDEC Rule 0400-40-03-.06 requires a review of updated alternatives analysis information in cases where the discharge results in degradation above a de minimis level.

The withdrawal rate for the intake pumping station located in Chickamauga Reservoir will be approximately 75 MGD and the SCCW intake withdrawal rate will remain approximately 174 MGD. Of the total withdrawal of approximately 249 MGD, approximately 42 MGD is consumptive (primarily cooling tower evaporation) with the remainder returning to the stream via permitted outfalls. The consumption amounts to only approximately 1.3% of the 7Q10 stream flow (3231.5 MGD). Therefore, water withdrawals will continue to be de minimis as described in TDEC Rule 0400:..40-03-.06.

No thermal degradation is proposed or anticipated. TVA has performed an extensive hydrothermal analysis of the WBN heat dissipation system. This analysis ind[cates that near-field (and thus far-field) thermal impacts are insignificant and can be managed within the limitations of the current NPDES permit.

TVA appreciates your consideration of the information provided herein in the development of the reissued permit. If you have questions or need additional information, please contact Crystal Bishop by email at clbishopO@tva.gov or by phone at (423) 314-3820.

Sincerely, Paul J. Pearman Senior Manager Water Permits, Compliance, and Monitoring.

Enclosure cc (Electronic Distribution w/ Enclosure):

Ms. Jennifer Innes (Jennifer.lnnes@tn.gov)

Manager, Chattanooga Environmental Field Office Division of Water Resources 1301 Riverfront Parkway, Suite #206 Chattanooga, Tennessee 37402 bJ.S. Nuclear Regulatory Commission \\

Attn: Document Control Desk Washington, DC 20555

EPA Identification Number TN2640030035 NPDES Permrt Number TN0020168 I

Facility Name I

TVA Watts Bar Nuclear Plant Form Approved 03,1)5/19 0MB No. 2040-0004 Form 1

NPDES SEPA U.S. Environmental Protection Agency Application for NPDES Permit to Discharge Wastewater GENERAL INFORMATION SECTION 1. ACTIVITIES REQUIRING AN NPDES PERMIT (40 CFR 122.21(1) and (f)(1))

1.1 Applicants Not Required to Submit Form 1 1.1.1 Is the facility a new or existing publicly owned 1.1.2 Is the facility a new or existing treatment works treatment works?

treating domestic sewage?

If yes, STOP. Do NOT complete 0

No If yes, STOP. Do NOT 0

No Form 1. Complete Form 2A.

complete Form 1. Complete Form 2S.

1.2 Applicants Required to Submit Form 1 1.2.1 Is the facility a concentrated animal feeding 1.2.2 Is the facility an existing manufacturing, operation or a concentrated aquatic animal commercial, mining, or silvicultural facility that is production facility?

currently discharging process wastewater?

Yes Complete Form 1 0

No 0

Yes Complete Form No and Form 28.

1 and Form 2C.

1.2.3 Is the facility a new manufacturing, commercial, 1.2.4 Is the facility a new or existing manufacturing, mining, or silvicultural facility that has not yet commercial, mining, or silvicultural facility that commenced to discharge?

discharges only nonprocess wastewater?

Yes Complete Form 1 0

No Yes Complete Form 0

No and Form 20.

1 and Form 2E.

1.2.5 Is the facility a new or existing facility whose discharge is composed entirely of stormwater associated with industrial activity or whose discharge is composed of both stormwater and non-storm water?

Yes Complete Form 1 0

No and Form 2F unless exempted by 40CFR 122.26(b)(14)(x) or SECTION 2. NAME, MAILING ADDRESS, AND LOCATION (40 CFR 122.21(f)(2))

2.1 Facility Name Tennessee Valley Authority (TVA) - Watts Bar Nuclear Plant C

2.2 EPA Identification Number

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TN2640030035

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2.3 Facility Contact ra vi Name (first and last)

I Title I Phone number

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-0 Beth Ann Jenkins Plant Manager (423) 365-3364

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Email address

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2.4 Facility Mailing Address cu E

Street or P.O. box z

PO Box 2000, LP 4J-C WBN City or town I State I

ZIP code Spring City TN 37381 EPA Form 3510-1 (revised 3-19)

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EPA Identification Number TN264003OO35 I

NPOES Permit Number TNOO2O168 I

Facility Name I

TVA Watts Bar Nuclear Plant

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II) 2.5 Facility location Street, route number, or other specific identifier Hwy 68 Nuclear Plant Rd, Spring City, TN 37381 County name County code {if known)

Rhea City or town Spring City State TN SECTION 3. SIC AND NAICS CODES (40 CFR 122.21(1)(3))

3.1 SIC Code(s)

Description (optional)

ZIP code 37381 Form Approved 03.US/19 0MB No. 2040-0004 4911 Electric Services

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3.2 NAICS Code(s)

Description (optional)

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II) 221113 Electric power generation* nuclear

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en SECTION 4. OPERATOR INFORMATION (40 CFR 122.21(f)(4))

4.1 Name of Operator Tennessee Valley Authority C:

4.2 Is the name you listed in Item 4.1 also the owner?

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4.5 Operator Address

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0 bajenkins@tva.gov SECTION 5. INDIAN LAND (40 CFR 122.21(f)(S))

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Yes 0 No EPA Form 3510-1 (revised 3-19)

D Other public (specify)

I ZIPcode 37381 Page 2

EPA Identification Number NPDES Permit Number Facility Name Form Approved 03,1)5/19 0MB No. 2040-0004

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w 6.1 Existing Environmental Pennits (check all that apply and print or type the corresponding pennit number for each)

IZl NPDES (discharges to surface D RCRA (hazardous wastes)

D UIC (underground injection of water) fluids)

TN0020168 / TNR051343 D PSD (air emissions)

D Nonattainment program (CAA)

D NESHAPs (CAA)

D Ocean dumping (MPRSA)

D Dredge or fill (CWA Section 404) 0 Other (specify)

Title V Air* 463822 SECTION 7. MAP (40 CFR 122.21(f)(7))

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7.1 Have you attached a topographic map containing all required information to this application? (See instructions for specific requirements.)

0 Yes D No D CAFO-Not Applicable (See requirements in Form 28.)

SECTION 8. NATURE OF BUSINESS (40 CFR 122.21(f)(8))

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z 8.1 Describe the nature of your business.

Production of electrical power via thermonuclear fission and associated operations.

Watts Bar Nuclear Plant is located at approximately Tennessee River Mile 528. Units 1 and 2 are each rated to produce 1,270 MW of electricity at full capacity.

SECTION 9. COOLING WATER INTAKE STRUCTURES (40 CFR 122.21(1)(9))

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9.1 Does your facility use cooling waler?

0 Yes No SKIP to Item 10.1.

9.2 Identify the source of cooling water. (Note lhat facilities that use a cooling water intake structure as described at 40 CFR 125, Subparts I and J may have additional application requirements at 40 CFR 122.21 (r). Consult with your NPDES permitting authority to determine what specific information needs to be submitted and when.)

The closed-cycle cooling system at WBN has one cooling water intake structure (CWIS) located in the inflow zone of Chickamauga Reservoir {Watts Bar Dam tailwater) that withdraws cooling water via pumping; and a gravity-driven Supplemental Condenser Cooling Water (SCCW) diversion intake located in the forebay of Watts Bar Reservoir.

SECTION 10. VARIANCE REQUESTS (40 CFR 122.21(1)(10))

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10.1 Do you intend to request or renew one or more of the variances authorized at 40 CFR 122.21(m)? (Check all that apply. Consult with your NPDES permitting authority to determine what information needs to be submitted and when.)

D Fundamentally different factors (CWA Section 301(n))

D Non-conventional pollutants (CWA Section 301(c) and (g))

0 Not applicable D

Water quality related effluent limitations (CWA Section 302(b)(2))

D Thermal discharges (CWA Section 316(a))

EPA Form 3510-1 (revised 3-19)

Page 3

EPA Identification Number Facility Name Form Approved 03~5119 0MB No. 2040-0004 11.1 11.2 In Column 1 below, mark the sections of Form 1 that you have completed and are submitting with your application.

For each section. specify in Column 2 any attachments that you are enclosing to alert the permitting authority. Note that not all a licants are re uired to rovide attachments.

Column 1 Column2

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Section 1: Activities Requiring an NPDES Permit w/ attachments

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Section 2: Name, Mailing Address, and Location w/ attachments

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Section 3: SIC Codes w/ attachments IZ1 Section 4: Operator Information w/ attachments IZ1 Section 5: Indian Land w/ attachments

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Section 6: Existing Environmental Permits w/ attachments IZ1 Section 7: Map IZ1 w/ topographic D w/ additional attachments ma

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Section 8: Nature of Business w/ attachments IZI Section 9: Cooling Water Intake Structures IZl w/ attachments Section 10: Variance Requests w/ attachments IZI Section 11: Checklist and Certification Statement w/ attachments Certification Statement I certify under penalty of law that this document and all attachments were prepared under my direction or supeNision 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 of fine and imprisonment for knowing violations.

Name (print or type first and last name}

Beth Ann Jenkins Official tiUe Plant Manager, Watts Bar Nuclear (WBN)

Date signed 7 O( /d-02....!

EPA Form 3510-1 (revised 3-19)

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Tennessee Valley Authority Watts Bar Nuclear Plant Rhea County, Tennessee Decatur Quadrangle June 2021

EPA Identification Number TN2640030035 NPDES Permit Number TN0020168 I

Facilily Name I

TVA Watts Sar Nuclear Plant Form Approved 03/05/19 0MB No. 2040-0004 U.S. Environmental Protection Agency Application for NPDES Permit to Discharge Wastewater EXISTING MANUFACTURING, COMMERCIAL, MINING, AND SILVICULTURE OPERATIONS SECTION 1. OUTFALL LOCATION (40 CFR 122.21(g)(1))

1.1 Provide information on each of the facility's outfalls in the table below.

Outfall Receiving Water Name Latitude Longitude Number OSN 101 Tennessee River 35*

35' 30" N

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35' 45" N

84" 47' 30" w IMP 103 Tennessee River via OSN1f:j 35*

36' o"

N 84° 47' 30 w

SECTION 2. LINE DRAWING (40 CFR 122.21(g)(2))

2.1 Have you attached a line drawing to this application that shows the water flow through your facility with a water balance? (See instructions for drawing requirements. See Exhibit 2C--1 at end of instructions for example.)

0 Yes D No SECTION 3. AVERAGE FLOWS AND TREATMENT (40 CFR 122.21(g)(3))

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3.1 For each outfall identified under Item 1.1, provide average now and treatment information. Add additional sheets if necessa.

..Outfall Number'* OSN 101 Operations Contributing to Flow Operation Diffuser Discharge (see form 2C OSN 101 attachment)

Treatment Units Description (include size, flow rate through each treatment unit, retention time, etc.

see Form 2C OSN 101 attachment Code from Table 2C-1 see attachment Average Flow 57.31 mgd mgd mgd mgd Final Disposal of Solid or Liquid Wastes Other Than b Dischar e see attachment EPA Form 3510-2C (Revised 3-19)

Page 1

EPA Identification Number TN2640030035 NPDES Permit Numbef TN0020168 F aality Name TVA Watts Bar Nuclear Plant 3.1 cont.

Yard holding pond overflow weir (emergency outfall) provides an alternative path for the diffuser discharge point Treatment Units Description (include size, flow rate through each treatment unit, retention time, etc.)

Discharge to surface water (Also see OSN 101)

Code from Table 2C-1 4-A

... Outfall Numbe,... IMP 103 Operations Contributing to Flow Operation low Volume Waste Holding Pond (See OSN 101 attachment)

Treatment Units Description (include size, flow rate through each treatment uni~

retention time, etc.

see Form 2C OSN 101 attachment Code from Table 2C-1 Form Approved 03ill5/19 0MB No. 2040-0004 0.000 mgd mgd mgd mgd Final Disposal of Solid or Liquid Wastes Other Than bv Discharae Averaae Flow

[0.347) mgd mgd mgd mgd Final Disposal of Solid or Liquid Wastes Other Than b Discha e 3.2 Are you applying for an NPDES permit to operate a privately owned treatment works?

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D Yes 0

No-+- SKIP to Section 4.

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3.3 Have you attached a list that identifies each user of the treatment works?

0 Yes D

No EPA Form 3510-2C (Revised 3-19)

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EPA Identification Number NPDES Permit Number Facility Name Form Approved 03/05/19 0MB No. 2040-0004 4.1 4.2

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..E Except for storm runoff, leaks, or spills, are any discharges described in Sections 1 and 3 intermittent or seasonal?

0 Yes D

No -+ SKIP to Section 5.

Outfall Number Operation (list}

Average Average Long-Term Maximum Duration Da srNeek Months/Year Avera e Dail Backwash SCCW Intake

<7 days/Week

<12 months/year 0.019 mgd mgd

<7 days OSN 114 days/week months/year mgd mgd days days/week months/year mgd mgd days daysf..veek months/year mgd mgd days days/week months/year mgd mgd days days/week months/year mgd mgd days days/week months/year mgd mgd days days/week months/year mgd mgd days days,\\veek months/year mgd mgd days SECTION 5. PRODUCTION (40 CFR 122.21(gl(5))

5.1 Do any effluent limitation guidelines (EL Gs) promulgated by EPA under Section 304 of the CWA apply to your facility?

0 Yes No -+ SKIP to Section 6.

tn 5.2 Provide the followinQ information on applicable ELGs.

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ELG Cateaorv ELG Subcategory Regulatorv Citation

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a Steam Electric Power Plant 40 CFR 4023

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No -+ SKIP to Section 6.

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.E Outfall Unit of

i Number Operation, Product, or Material Quantity per Day Measure "C

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EPA Form 3510-2C (Revised 3-19)

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EPA Identification Number NPOES Pennit Nurrbe<

Facility Name Form Approved 03/05/19 0MB No. 2040-0004

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6.1 Are you presently required by any federal, state, or local authority to meet an implementation schedule for constructing, upgrading, or operating wastewater treatment equipment or practices or any other environmental programs that could affect the discharges described in this application?

6.2 0

Yes 0

No SKIP to Item 6.3.

Brief Identification and Description of Project Affected Outfalls (list outfall number Source(s) of Discharge Final Compliance Dates Required Projected 6.3 Have you attached sheets describing any additional water pollution control programs (or other environmental projects that may affect your discharges} that you now have underway or planned? (optional item)

D Yes D No 0

Notapplicable SECTION 7. EFFLUENT AND INTAKE CHARACTERISTICS(40 CFR 122.21(g)(7))

See the instructions to determine the pollutants and parameters you are required to monitor and, in turn, the tables you must complete. Not all applicants need to complete each table.

Table A. Conventional and Non-Conventional Pollutants 7.1 Are you requesting a waiver from your NPDES permitting authority for one or more of the Table A pollutants for any of your outfalls?

Yes 0

No SKIP to Item 7.3.

7.2 If yes, indicate the applicable outfalls below. Attach waiver request and other required information to the application.

Outfall Number --

7.3 Have you completed monitoring for all Table A pollutants at each of your outfalls for which a waiver has not been

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c IZ] Yes D No; a waiver has been requested from my NPDES

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permittino authoritv for all oollutants at all outfalls.

.c Table 8. Toxic Metals Cyanide Total Phenols and 0111anic Toxic Pollutants

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7.4 Do any of the facility's processes that contribute wastewater fall into one or more of the primary industry categories

£ listed in Exhibit 2C-3? (See end of instructions for exhibit.)

IZ] Yes No -+ SKIP to Item 7.8.

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7.6 List the applicable primary industry categories and check the boxes indicating the required GC/MS fraction(s} identified in Exhibit 2C-3.

Primary Industry Category Required GC/MS Fraction(s)

(Check applicable boxes.)

Steam Electric Power Plant 0 Volatile 0Acid Base/Neutral Pesticide Volatile Acid Base/Neutral Pesticide Volatile Acid Base/Neutral D Pesticide EPA Form 3510-2C (Revised 3-19)

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EPA ldenuficaUoo Number TN2640030035 I

NPDES Permit Number TN0020168 I

Facility Name I

TVA Watts Bar Nuclear Plant Form Approved 03/05119 0MB No. 2040-0004 "C

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I ffi 7.7 Have you checked "Testing Required" for all required pollutants in Sections 2 through 5 of Table B for each of the GC/MS fractions checked in Item 7.67 0

Yes D No 7.8 Have you checked 'Believed Present" or "Believed Absent" for all pollutants listed in Sections 1 through 5 of Table B where testing is not required?

0 Yes D No 7.9 Have you provided (1) quantitative data for those Section 1, Table 8, pollutants for which you have indicated testing is required or (2) quantitative data or other required information for those Section 1, Table B, pollutants that you have indicated are "Believed Present" in your discharge?

IZ] Yes D No 7.10 Does the applicant qualify for a small business exemption under the criteria specified in the instructions?

D Yes -+ Note that you qualify at the top of Table B, 0

No then SKIP to Item 7.12.

7.11 Have you provided (1) quantitative data for those Sections 2 through 5, Table 8, pollutants for which you have determined testing is required or (2) quantitative data or an explanation for those Sections 2 through 5, Table B, pollutants you have indicated are 'Believed Present" in your discharge?

0 Yes D

No Table C. Certain Conventional and Non-Conventional Pollutants 7.12 Have you indicated whether pollutants are "Believed Present* or "Believed Absent" for all pollutants listed on Table C for all outfalls?

0 Yes D No 7.13 Have you completed Table C by providing ( 1) quantitative data for those pollutants that are limited either directly or indirectly in an ELG and/or (2) quantitative data or an explanation for those pollutants for which you have indicated "Believed Present"?

IZ] Yes D No Table D. Certain Hazardous Substances and Asbestos 7.14 Have you indicated whether pollutants are 'Believed Present" or "Believed Absent" for all pollutants listed in Table D for all outfalls?

0 Yes D No 7.15 Have you completed Table D by (1) describing the reasons the applicable pollutants are expected to be discharged and (2) by providing quantitative data, if available?

0 Yes D No Table E. 2,3,7,8-Tetrachlorodibenzo-o-Dioxin (2,3,7,8-TC0Dl 7.16 Does the facility use or manufacture one or more of the 2,3,7,8-TCDD congeners listed in the instructions, or do you know or have reason to believe that TCDD is or may be present in the effluent?

D Yes-+ Complete Table E.

0 No-+ SKIP to Section 8.

7.17 Have you completed Table Eby reporting qualitative data for TCDD?

D Yes D

No SECTION 8. USED OR MANUFACTURED TOXICS (40 CFR 122.21(g)(9))

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D Yes 0

No -+ SKIP to Section 9.

List the pollutants below.

1.

2.

3.

4.

5.

6.

7.

8.

9.

EPA Form 3510.2G (Revise<l 3-19)

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EPA Identification Number NPOES Permit Number Facility Name Form Approved 03/05/19 0MB No. 2040-0004 9.1 Do you have any knowledge or reason to believe that any biological test for acute or chronic toxicity has been made within the last three years on (1) any of your discharges or (2) on a receiving water in relation to your discharge?

0 Yes D

No SKIP to Section 10.

9.2 ldenti the tests and their u ses below.

Test(s)

Purpose of Test(s)

Pennittin Date Submitted Semi Annual Biotoxicity Acute Whole Effluent 0 Yes No Submitted with DMR Toxicit Yes No Yes No SECTION 10. CONTRACT ANALYSES (40 CFR 122.21(9)(12))

10.1 Were any of the analyses reported in Section 7 performed by a contract laboratory or consulting firm?

@ Yes D

No SKIP lo Section 11.

10.2 Provide information for each contract laboratory or consulting firm below.

Laboratory Number 1 Laboratory Number 2 Laboratory Number 3 u i C:

0 u Name of laboratory/firm GEL Laboratories LLS Laboratory address Phone number Pollutant(s) analyzed 2040 Savage Road Charleston, SC 29409 (843) 556-8171 All parameters except field parameters.

SECTION 11. ADDITIONAL INFORMATION (40 CFR 122.21(9)(13))

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0 Yes 0

No SKIP lo Section 12.

11.2 List the information requested and attach ii to this application.

1.

4.

2.

5.

3.

6.

EPA Fonm 3510.2C (Revise<! ~19)

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For each section, specify in Column 2 any attachments that you are enclosing to alert the permitting authority. Note that not all a licants are re uired to com lete all sections or rovide attachments.

Column 1 Column 2 0

Section 1: Outfall Location 0

w/ attachments 0

Section 2: Line Drawing IZI w/ line drawing w/ additional attachments Section 3: Average Flows and wt list of each user of 0

0 w/ attachments privately owned treatment Treatment works 0

Section 4: Intermittent Flows wt attachments 0

Section 5: Production w/ attachments wt optional additional 0

Section 6: Improvements wt attachments sheets describing any additional pollution control lans wt request for a waiver and w/ explanation for identical supporting information outfalls w/ small business exemption w/ other attachments request 0

Section 7: Effluent and Intake 0

w/ Table A 0

w/Table B Characteristics 0

w/Table C 0

w/Table D 0

w/Table E w/ analytical results as an attachment 0

Section 8: Used or Manufactured w/ attachments Toxics 0

Section 9: Biological Toxicity w/ attachments Tests 0

Section 10: Contract Analyses w/ attachments 0

Section 11: Additional Information wt attachments 0

Section 12: Checklist and w/ attachments Certification Statement Certification Statement t certify 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 of fine and imprisonment for knowing violations.

Name (print or type first and last name)

Official title Beth Ann Jenkins Plant Manager Date signed I IO l l 202 I EPA Form 3510-2C (Revised 3-19)

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EPA Identification Number TN2640030035 NPDES Permit Number TN0020168 Facility Name TVA Watts Bar Nuclear Plant Form Approved 03/05/19 0MB No. 2040-0004 U.S. Environmental Protection Agency Application for NPDES Permit to Discharge Wastewater EXISTING MANUFACTURING, COMMERCIAL, MINING, AND SILVICULTURE OPERATIONS SECTION 1. OUTFALL LOCATION (40 CFR 122.21(g)(1))

1.1 Provide information on each of the facility's outfalls in the table below.

C Outfall Receiving Water Name Latitude Longitude

8 Number

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0 IMP107 Tenn essee River 35° 36' o"

N 84° 47' 30" w

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Tennessee River 35° 35 '

45" 84° 46' 45" OSN 113 N

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OSN 114 Tennessee River 35° 37' 15" N

84° 47' 0

w SECTION 2. LINE DRAWING (40 CFR 122.21(g)(2))

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2.1 Have you attached a line drawing to this application that shows the water flow through your facility with a water balance? (See instructions for drawing requirements. See Exhibit 2C-1 at end of instructions for example.)

IZ] Yes D No SECTION 3. AVERAGE FLOWS AND TREATMENT (40 CFR 122.21(g)(3))

C Q)

E io

~

1-

-0 C

~

0 u:::

Q)

Cl E

Q)

~

3.1 For each outfall identified under Item 1.1, provide average flow and treatment information. Add additional sheets if necessa.

- Outfall Number** IMP107 Operations Contributing to Flow Operation Lined/Unlined Ponds {See OSN 101 att achment}

Treatment Units Description (include size, flow rate through each treatment unit, retention time, etc.

see OSN 101 att achment Code from Table 2C-1 Average Flow mgd mgd mgd mgd Final Disposal of Solid or Liquid Wastes Other Than b Dischar e EPA Form 3510-2C (Revised 3-19)

Page 1

EPA Identification Number TN2640030035 NPDES Permit Number TN0020168 Facility Name TVA Watts Bar Nuclear Plant "O

CV

I

~

C:

0 0 -

C:

CV E -

IO e 1-

"0 C:

IO

~

0 u:::

CV Cl E

CV

~

3.1 cont.

Operation Ul CT Basin blowdown (noncontact cooling water) and Supplemental Condenser Cooling W ater bypass Treatment Units Description (include size, flow rate through each treatment unit, retention lime, etc.)

Discharge to surface water Code from Table 2C-1 4-A

- Outfall Number** OSN 114 Operations Contributin to Flow Operation SCCW Intake screen backwash water Treatment Units Description (include size, flow rate through each treatment unit, retention time, etc.

Discharge to surface water Code from Table 2C-1 4-A Average Flow Form Approved 03/05/19 0MB No. 2040-0004 201.89 mgd mgd mgd mgd Final Disposal of Solid or Liquid Wastes Other Than by Discharge Average Flow 0.019 mgd mgd mgd mgd Final Disposal of Solid or Liquid Wastes Other Than b Dischar e 3.2 Are you applying for an NPDES permit to operate a privately owned treatment works?

j ~

D Yes 0

No~ SKIP to Section 4.

Ulu,1----1----------------------------------------------<

3.3 Have you attached a list that identifies each user of the treatment works?

D Yes D

No EPA Form 3510-2C (Revised 3-19)

Page 2

WBN OSN 101 Form 2C Attachment

1. Outfall No.

OSN 101

2. Operations Contributing Flow

a. Operation

b. Average Flow (MGD)

Diffuser Discharge (receives the following)

(1) Yard Holding Pond 1.50 MGD a) Turbine Bldg Station Sump (TBSS} alternate

[0MGD]

path b) Cooling Tower Blowdown (CTBD) alternate

[0 MGD]

Path c) Emerg. Raw Cooling Water (ERCW) alternate

[0MGD]

path d) Raw Cooling Water (RCW) alternate path

[0MGD]

e) Ice condenser chiller/air coolers alternate

[0MGD]

path f) Miscellaneous discharges, includes:

[0.7373 MGD]

Non-rad Demin Water discharges to Yard

[0.011 MGD]

Drains Service building sump

[0.020 MGD]

Diesel Generator (D/G) Building Sump

[0.0001 MGD]

Emergency D/G Building Sump

[0.0001 MGD]

CCW Pump Station Sump

[0.0001 MGD]

NaOCL Building Sump and Dike

[0.001 MGD]

High Pressure Fire Protection (HPFP)

[0.003 MGD]

Flushes Potable water line leaks

[0.001 MGD]

Storm Water Runoff

[0.699 MGD]

Rainwater releases from secondary

[0.001 MGD]

containment for bulk chemical storage Groundwater sump

[0.001 MGD]

g) Condenser cleaning, cooling tower cleaning,

[n]

and worker decon h) Training Center Cooling Tower Blowdown

[0.001 MGD]

i) Trash sluice water, receives:

[0.1878 MGD]

Station drainage sumps

{0.072 MGD]

Emergency raw cooling water strainer

[n]

leakage ERCW Strainer backwash

[0.108 MGD]

ERCW Traveling Screen backwash

[0.0078 MGD]

3. Treatment

a. Description

b. List Codes from Table 2C-1 57.31 2

K Wastes are treated in a 22-acre 1

u

pond, (acreage for 101 and 102 2

K combined) providing 4

A sedimentation/neutralization.

Discharge through multiport diffuser to surface water Discharge through muliport diffuser to surface water Leak collection with oil skimming X

X Sedimentation 1

u Filtration to 5 microns for asbestos X

X

(j) Precipitation, Less evaporation

[0.048 MGD]

k) Cooling tower desilting basin

[0.002 MGD]

Sedimentation 1

u I) Low Volume Waste Holding Pond (IMP 103)

[0.347 MGD]

Unlined 3.7-acre pond with 1

u

[IMP 103]

receives :

sedimetation and neutralization Precipitation, Less Evaporation

[0.0053 MGD]

Vendor water treatment RO reject

[0.26 MGD]

Turbine building station sump, receives :

[0.2007 MGD]

Floor drain collection w/oil X

X skimming Metal cleaning wastes

[n]

Laboratory waste

[0.0002 MGD]

Neutral Waste Tank

[n]

Potable Water Line Leaks

[0.0002 MGD]

System Leakage & Maintenance

[0.1993 MGD]

High Pressure Fire Protection

[0.001 MGD]

discharges Lined/Unlined Ponds alternate path (when

[n]

no metal cleaning activity has occurred since last discharge) m) ERCW Header flushes

[n]

n) Asbestos micro filtrate (condenser tube

[n]

cleaning) o) Discharge from IMP 107 (Lined/Unlined

[0.033 MGD]

Lined pond 1 MG (0.26 acre) 1 u

[IMP 107]

Ponds) receives:

Unlined pond 5 MG (1.3 acre) 2 C,K provides sedimentation, precip.,

neutralization Precipitation, Less Evaporation

[0.002 MGD]

Metal Cleaning wastes

[n]

Storm water runoff

[0.0001 MGD]

Drum rinsing

[0.0001 MGD]

Drum dewatering

[0.0001 MGD]

Floor drain collection w/oil X

X skimming Diesel cleaning coolant

[0.0001 MGD]

Turbine Building Station Sump

[0.0306 MGD]

alternate path Asbestos micro filtrate (CT cleaning

[n]

activity)

(2) Cooling Tower Blowdown (CTBD), receives:

45.773 MGD

a) Liquid Radwaste system, which receives flow

[0.0040 MGD]

Ion Exchange and Filtration System 2

J from the following:

Primary Laboratory Wastes

[0.0001 MGD]

Radioactive Floor and Equipment

[0.0039 MGD]

Drains, Tanks, and Sumps 2

J b) Steam Generator Blowdown

[0.36 MGD]

c) Condensate Denim Cleanup

[0.0010 MGD]

Neutralization 2

K d) U2 CT Basin blowdown (noncontact cooling

[45.408 MGD]

water)

{3) Misc. Cooling Water, receives:

10.62 MGD a) Emergency Raw Cooling Water

[5.31 MGD]

b) Raw Cooling Water

[4.91 MGD]

c) Ice Condenser Chiller/Various Air coolers

[0.400 MGD]

[n] denotes negligible flow

EPA Identification Number NPDES Permit Number FoolfyN~

TN2640030035 TN0020168 TVA Watts Bar Nuclear Plant OSN 101 OMB No 2o4o-0oo4

1,.*-*1J~lf~::l,11 1 hJ*1**1~1 11,1., J~l*.i:I~ IIIIJ~J*1* ****~*r*1,11 f.'t'f!ll II: ~,lliltllA,J;u Effluent Intake (Optional)

Waiver Units Maximum Maximum Long-Term Pollutant Requested (specify)

Daily Monthly Average Daily Number of Long-Term Number of (if applicable)

Discharge Discharge Discharge Analyses Average Value Analyses (required)

(if available)

Check here if you have applied to your NPDES permitting authority for a waiver for all of the pollutants listed on this table for the noted outfall.

Biochemical oxygen demand Concentration mg/L

<1.00 1

<1.00

1.

(BODs)

Mass Chemical oxygen demand Concentration mg/L 11.6 1

11.6

2.

(COD)

Mass Concentration mg/L 2.19 1

1.80

3.

Total organic carbon (TOC)

Mass Concentration mg/L 6.99 1

3.40

4.

Total suspended solids (TSS)

Mass Concentration mg/L 0.0700 1

0.0954

5. Ammonia (as N)

Mass

6. Flow Rate MGD 137.30 57.31 791 Temperature (winter)

c

c 32.8 18.5 461 8.7

7.

Temperature (summer)

c

c 31.3 25.9 458 N/A pH (minimum)

Standard units s.u.

8.34 5

7.89

8.

pH (maximum)

Standard units s.u.

8.70 5

8.08 1 Sampling shall be conducted according to sufficiently sensitive test procedures (i.e., methods) approved under 40 CFR 136 for the analysis of pollutants or pollutant parameters or required under 40 CFR chapter I, subchapter Nor 0. See instructions and 40 CFR 122.21 (e)(3).

EPA Form 3510-2C (Revised 3-1 9) 1 1

1 1

1 4

4 4

Page 9

This page intentionally left blank.

EPA Identification Number NPDES Penmit Number Facility Name Outfall Number Form Approved 03/05/19 TN2640030035 TN0020168 TVA Watts Bar Nuclear Plant OSN 101 0MB No. 2040-0004

,- 1*:n..

1*11;;a*~ 1!!1111**111111::.1:1: ~111a..-.,1~11**1 ~,rr* 1~1,_, ** ***::.1********1~ --'"""'t'II *:, Iii-Presence or Absence Intake (check one)

Effluent (optional)

Pollutant/Parameter Testing Units Maximum Maximum Long-Term Long-(and CAS Number, if available)

Required Believed Believed (specify)

Daily Monthly Average Number Term Number Present Absent Discharge Discharge Daily of Average of (required)

(if available)

Discharge Analyses Value Analyses (if available l Check here if you qualify as a small business per the instructions to Form 2C and, therefore, do not need to submit quantitative data for any of the organic toxic pollutants in Sections 2 through 5 of this table. Note, however, that you must still indicate in the appropriate column of this table if you believe any of the pollutants listed are present in your discharge.

Section 1. Toxic Metals, Cyanide, and Total Phenols Antimony, total 0

Concentration ug/L

<1.00 1

1.1 (7 440-36-0)

Mass Arsenic, total 0

Concentration ug/L

<2.00 1

1.2 (7 440-38-2)

Mass Beryllium, total 0

Concentration ug/L

<0.200 1

1.3 (7 440-41 -7)

Mass Cadmium, total 0

Concentration ug/L

<0.300 1

1.4 (7 440-43-9)

Mass Chromium, total 0

Concentration ug/L

<3.00 1

1.5 (7 440-4 7 -3)

Mass 1.6 Copper, total 0

Concentration ug/L 2.66 1

0.849 1

(7 440-50-8)

Mass Lead, total 0

Concentration ug/L

<0.500 1

1.7 (7 439-92-1)

Mass Mercury, total 0

Concentration ng/L 3.19 4

2.01 4

1.8 (7 439-97-6)

Mass Nickel, total 0

Concentration ug/L

<0.600 1

1.9 (7440-02-0)

Mass Selenium, total 0

Concentration ug/L

<2.00 1

1.10 (7782-49-2)

Mass Silver, total 0

Concentration ug/L

<0.300 1

1.11 (7440-22-4)

Mass EPA Form 3510-2C (Revised 3-19)

Page 11

EPA Identification Number NPDES Perm~ Number Facility Name Outfall Number Form Approved 03/05/19 TN2640030035 TN0020168 TVA Watts Bar Nuclear Plant OSN 101 0MB No. 2040-0004

. g,.., 11JJ J11r*1*~ ~1: INIJL'9*1~11I*.,_,,.,.._,,. 11.. :.IIJI l-t'!.wlL."tl'"'l al::I Presence or Absence Intake (check one)

Effluent (optional)

Pollutant/Parameter Testing Units Maximum Maximum Long-Term Long-(and CAS Number, if available)

Required Believed Believed (specify)

Daily Monthly Average Number Term Number Present Absent Daily of of Discharge Discharge Discharge Analyses Average Analyses (required}

(if available}

(if available)

Value Thallium, total IZl Concentration ug/L

<0.600 1

1.12 (7 440-28-0)

Mass 1.13 Zinc, total IZl Concentration ug/L 20.6 1

5.82 1

(7 440-66-6)

Mass Cyanide, total IZl Concentration ug/L

<1.67 4

1.14 (57-12-5)

Mass IZl Concentration ug/L 0.425 4

<1.67 4

1.15 Phenols, total Mass Section 2. Organic Toxic Pollutants (GC/MS Fraction-Volatile Compounds)

Acrolein

IZl Concentration ug/L

<l.67 4

<1.67 4

2.1 (107-02-8)

Mass Acrylonitrile*

IZl Concentration ug/L

<1.67 4

2.2 (107-13-1)

Mass Benzene

IZl Concentration ug/L

<0.333 4

2.3 (71-43-2)

Mass Bromoform

IZl Concentration ug/L

<0.333 4

2.4 (75-25-2)

Mass Carbon tetrachloride

IZl Concentration ug/L

<0.333 4

2.5 (56-23-5)

Mass Chlorobenzene

IZl Concentration ug/L

<0.333 4

2.6 (108-90-7)

Mass Chlorodibromomethane

Concentration ug/L

<0.333 4

2.7 (124-48-1)

IZl Mass Chloroethane

IZl Concentration ug/L

<0.333 4

2.8 (75-00-3)

Mass

Denotes four grab samples were analyzed individually instead of compositing in the laboratory prior to analyses, all results were non-detect and TV A does not believe the analysis method affected the results.

EPA Form 3510-2C (Revised 3-19)

Page 12

EPA Identification Number NPDES Permit Number Facility Name Outfall Number Form Approved 03/05/19 TN2640030035 TN0020168 TVA Watts Bar Nuclear Plant OSN 101 0MB No. 2040-0004 1 3 :* *-"'~I'll--*

..,,.. 11]:a 11.r!, ~=1 :,,,_

11,u1a11 '!"J.P'f, 1,111.. 1 **.,_ ' l 1**~1~1f.""l"r!U ~:1

Presence or Absence Intake (check one)

Effluent (optional)

Pollutant/Parameter Testing Units Maximum Maximum Long-Term Long-(and CAS Number, if available)

Required Believed Believed (specify)

Average Number Number Daily Monthly Term Present Absent Discharge Discharge Daily of Average of (required)

(if available)

Discharge Analyses Value Analyses (if available l 2-chloroethylvinyl ether*

[Z]

Concentration ug/L

<1.67 4

2.9 (110-75-8)

Mass

[Z]

Concentration ug/L

<0.333 4

2.10 Chloroform (67-66-3)

Mass Dichlorobromomethane *

[Z]

Concentration ug/L

<0.333 4

2.11 (75-27-4)

Mass 1, 1-dichloroethane *

[Z]

Concentration ug/L

<0.333 4

2.12 (75-34-3)

Mass 1,2-dichloroethane*

[Z]

Concentration ug/L

<0.333 4

2.13 (107-06-2)

Mass 1, 1-dichloroethylene *

[Z]

Concentration ug/L

<0.333 4

2.14 (75-35-4)

Mass 1,2-dichloropropane *

[Z]

Concentration ug/L

<0.333 4

2.15 (78-87-5)

Mass 1,3-dichloropropylene *

[Z]

Concentration ug/L

<0.333 4

2.16 (542-75-6)

Mass Ethylbenzene *

[Z]

Concentration ug/L

<0.333 4

2.17 (100-41-4)

Mass Methyl bromide *

[Z]

Concentration ug/L

<0.337 4

0.337 4

2.18 (74-83-9)

Mass Methyl chloride

0 Concentration ug/L

<0.333 4

2.19 (74-87-3)

Mass Methylene chloride

Concentration ug/L

<l.67 4

<1.67 4

2.20

[Z]

(75-09-2)

Mass 1, 1,2,2-tetrachloroethane

0 Concentration ug/L

<0.333 4

2.21 (79-34-5)

Mass EPA Form 3510-2C (Revised 3-19)

Page 13

Denotes four grab samples were analyzed individually instead of compositing in the laboratory prior to analyses, all results were non-detect and TV A does not believe the analysis method affected the results.

EPA Identification Number NPDES Permit Number Facility Name Outfall Number Form Approved 03/05/19 TN2640030035 TN0020168 TVA Watts Bar Nuclear Plant OSN 101 0MB No. 2040-0004

1: 111 =-***..

,.,,., 11::a 1a1.-... *~:,: N*la."W*1~1 *1~U'f*,~1,-1.,.,r.. ~*1****1,.,,,,._,,,11*-~

L-*-*

Presence or Absence Intake (check one)

Effluent (optional)

Pollutant/Parameter Testing Units Maximum Maximum Long-Term Long-(and CAS Number, if available)

Required Believed Believed (specify)

Average Number Number Present Absent Daily Monthly Daily of Term of Discharge Discharge Discharge Analyses Average Analyses (required)

(if available)

Value Tetrachloroethylene

IZI Concentration ug/L

<0.333 4

2.22 (127-18-4)

Mass Toluene

IZI Concentration ug/L

<0.333 4

2.23 (108-88-3)

Mass 1,2-trans-dichloroethylene

IZI Concentration ug/L

<0.333 4

2.24 (156-60-5)

Mass 1, 1, 1-trichloroethane

Concentration ug/L

<0.333 4

2.25 (71-55-6)

IZI Mass 1, 1,2-trichloroethane

IZI Concentration ug/L

<0.333 4

2.26 (79-00-5)

Mass Trichloroethylene *

[{J Concentration ug/L

<0.333 4

2.27 (79-01-6)

Mass Vinyl chloride

IZI Concentration ug/L

<0.333 4

2.28 (75-01-4)

Mass Section 3. Organic Toxic Pollutants (GC/MS Fraction-Acid Compounds) 2-chlorophenol IZI Concentration ug/L

<3.11 1

<2.82 1

3.1 (95-57-8)

Mass 2,4-dichlorophenol IZI Concentration ug/L

<3.11 1

<2.82 1

3.2 (120-83-2)

Mass 2,4-dimethylphenol IZI Concentration ug/L

<3.11 1

<2.82 1

3.3 (105-67-9)

Mass 4, 6-d initro-o-cresol IZI Concentration ug/L

<3.11 1

<2.82 1

3.4 (534-52-1)

Mass 2,4-dinitrophenol IZI Concentration ug/L

<5.18 1

<4.70 1

3.5 (51-28-5)

Mass

Denotes four grab samples were analyzed individually instead of compositing in the laboratory prior to analyses, all results were non-detect and TV A does not believe the analysis method affected the results.

EPA Form 3510-2C (Revised 3-19)

Page 14

EPA Identification Number NPDES Permit Number Facility Name Outfall Number Form Approved 03/05/19 TN2640030035 TN0020168 TVA Watts Bar Nuclear Plant OSN 101 0MB No. 2040--0004

- ---**1~ g **llf'*l *J~!: M*a.-*HI l l~lr'I'* 1.,11_, u*- *T ll~f'*U~L."tlll*lm' Presence or Absence Intake (check one)

Effluent (optional)

PollutanUParameter Testing Units Maximum Maximum Long-Term Long*

(and CAS Number, if available)

Required Believed Believed (specify)

Average Number Number Present Absent Daily Monthly Daily of Term of Discharge Discharge Discharge Analyses Average Analyses (required)

(if available)

Value 3.6 2-nitrophenol 0

Concentration ug/L

<3.11 1

<2.82 1

(88-75-5)

Mass 3.7 4-nitrophenol 0

Concentration ug/L

<3.11 1

<2.82 1

(100-02-7)

Mass 3.8 p-chloro-m-cresol 0

Concentration ug/L

<3.11 1

<2.82 1

(59-50-7)

Mass 3.9 Pentachlorophenol 0

Concentration ug/L

<3.11 1

<2.82 1

(87-86-5)

Mass 3.10 Phenol 0

Concentration ug/L

<3.11 1

<2.82 1

(108-95-2)

Mass 3.11 2,4,6-trichlorophenol 0

Concentration ug/L

<3.11 1

<2.82 1

(88-05-2)

Mass Section 4. Organic Toxic Pollutants (GC/MS Fraction-Base /Neutral Compounds) 4.1 Acenaphthene 0

Concentration (83-32-9)

Mass 4.2 Acenaphthylene 0

Concentration (208-96-8)

Mass 4.3 Anthracene 0

Concentration (120-12-7)

Mass 4.4 Benzidine 0

Concentration (92-87-5)

Mass 4.5 Benzo (a) anthracene 0

Concentration (56-55-3)

Mass 4.6 Benzo (a) pyrene 0

Concentration (50-32-8)

Mass EPA Form 3510-2C (Revised 3-19)

Page 15

EPA Identification Number NPDES Permit Number Facility Name Outfall Number Form Approved 03/05/19 TN2640030035 TN0020168 TVA Watts Bar Nuclear Plant OSN 101 0MB No. 2040-0004

- - - - -1"*--*

--,~ **=-

- *~ :J=1; ~1 1a."W*l~J1HJ~{et:* h'll*I.... ~::.1*1* 11**1~*.... -*, 11*11ol:1*

Presence or Absence Intake (check one)

Effluent (optional}

Pollutant/Parameter Testing Units Maximum Maximum Long-Term Long-(and CAS Number, if available)

Required Believed Believed (specify)

Average Number Number Present Absent Daily Monthly Daily of Term of Discharge Discharge Discharge Analyses Average Analyses (required}

(if available)

Value 3,4-benzofluoranthene 0

Concentration 4.7 (205-99-2)

Mass 4.8 Benzo (ghi) perylene 0

Concentration (191-24-2)

Mass 4.9 Benzo (k) fluoranthene 0

Concentration (207-08-9)

Mass 4.10 Bis (2-chloroethoxy) methane 0

Concentration (111 1)

Mass Bis (2-chloroethyl) ether 0

Concentration 4.11 (1 11-44-4)

Mass 4.12 Bis (2-chloroisopropyl) ether 0

Concentration (102-80-1)

Mass Bis (2-ethylhexyl) phthalate 0

Concentration 4.13 (117-81-7)

Mass 4.14 4-bromophenyl phenyl ether 0

Concentration (101 3)

Mass Butyl benzyl phthalate 0

Concentration 4.1 5 (85-68-7)

Mass 4.16 2-chloronaphthalene 0

Concentration (91-58-7)

Mass 4-chlorophenyl phenyl ether 0

Concentration 4.17 (7005-72-3)

Mass 4.18 Chrysene 0

Concentration (218-01 -9)

Mass Dibenzo (a,h) anthracene 0

Concentration 4.19 (53-70-3)

Mass EPA Form 3510-2C (Revised 3-19)

Page 16

EPA Identification Number NPDES Permtt Number Facility Name Outfall Number Form Approved 03/05/19 TN2640030035 TN0020168 TVA Watts Bar Nuclear Plant OSN 101 0MB No. 2040-0004

;, a11 :*1 m;;z,,..._,.....

.._,~

I...,...,.~:,: ~l**-----*1~11I *1~uT* "'~* 1~*1-~*

1*~1~,1a...-..r, l *:::1 Iii

'I Presence or Absence Intake (check one)

Effluent (optional)

Pollutant/Parameter Testing Units Maximum Maximum Long-Term Long-(and CAS Number, if available)

Required Believed Believed (specify)

Daily Monthly Average Number Term Number Present Absent Discharge Discharge Daily of Average of (required)

(if available)

Discharge Analyses Value Analyses

{if available l 4.20 1,2-dichlorobenzene 0

Concentration (95-50-1)

Mass 4.21 1,3-dichlorobenzene 0

Concentration (541-73-1)

Mass 4.22 1,4-dichlorobenzene 0

Concentration (106-46-7)

Mass 4.23 3,3-dichlorobenzidine 0

Concentration (91 1)

Mass Diethyl phthalate IZI Concentration 4.24 (84-66-2)

Mass 4.25 Dimethyl phthalate IZI Concentration (131-11-3)

Mass Di-n-butyl phthalate IZI Concentration 4.26 (84-74-2)

Mass 4.27 2,4-dinitrotoluene IZI Concentration (121 2)

Mass 2,6-dinitrotoluene 0

Concentration 4.28 (606-20-2)

Mass Di-n-octyl phthalate 0

Concentration 4.29 (117-84-0)

Mass 1,2-Diphenylhydrazine IZI Concentration 4.30 (as azobenzene) (122-66-7)

Mass Fluoranthene 0

Concentration 4.31 (206-44-0)

Mass Fluorene 0

Concentration 4.32 (86-73-7)

Mass EPA Form 3510-2C (Revised 3-19)

Page 17

EPA Identification Number NP0ES Permit Number Facility Name Outfall Number Form Approved 03/05/19 TN2640030035 TN0020168 TVA Watts Bar Nuclear Plant OSN 101 0MB No. 2040-0004

1: 11 :****** 1-H1l::::l.!1---(M.. l,I\\-, **=-.....

1:1: ~l*1..._.._,,~11Ialelff* 1.,11_,..,_ '11J -1'*1** a..'"""r,il *::, Iii Presence or Absence Intake (check one)

Effluent (optional)

Pollutant/Parameter Testing Units Maximum Maximum Long-Term Long-(and CAS Number, if available)

Required Believed Believed (specify)

Daily Monthly Average Number Term Number Present Absent Daily of of Discharge Discharge Discharge Analyses Average Analyses (required)

(if available)

Value Hexachlorobenzene IZl Concentration 4.33 (118-74-1)

Mass Hexachlorobutadiene IZl Concentration 4.34 (87-68-3)

Mass Hexachlorocyclopentadiene IZl Concentration 4.35 (77-47-4)

Mass Hexachloroethane IZl Concentration 4.36 (67-72-1)

Mass lndeno (1,2,3-cd) pyrene IZl Concentration 4.37 (193-39-5)

Mass lsophorone IZl Concentration 4.38 (78-59-1)

Mass Naphthalene IZl Concentration 4.39 (91-20-3)

Mass 4.40 Nitrobenzene IZl Concentration (98-95-3)

Mass N-nitrosodimethylamine IZl Concentration 4.41 (62-75-9)

Mass N-nitrosodi-n-propylamine IZl Concentration 4.42 (621-64-7)

Mass N-nitrosodiphenylamine IZl Concentration 4.43 (86-30-6)

Mass Phenanthrene IZl Concentration 4.44 (85-01-8)

Mass Pyrene IZl Concentration 4.45 (129-00-0)

Mass EPA Form 3510-2C (Revised 3-19)

Page 18

EPA Identification Number NPDES Permit Number Facility Name Outfall Number Form Approved 03/05/19 TN2640030035 TN0020168 TVA Watts Bar Nuclear Plant OSN 101 0MB No. 2040-0004

=- ).t 1.. 1,11::1**1---******1 1,1,,. 1 1***-*~: 1

~l *--*1,,11 1]~,{tf,~1,-, I*.,...;:,i j-1-f!'*'H.. "'IIMIHi::I......,......

1111',****

Presence or Absence Intake (check one)

Effluent (optional)

Pollutant/Parameter Testing Units Maximum Maximum Long-Term Long-(and CAS Number, if available)

Required Believed Believed (specify)

Average Number Number Present Absent Daily Monthly Daily of Term of Discharge Discharge Discharge Analyses Average Analyses (required)

(if available)

Value 4.46 1,2,4-trichlorobenzene 0

Concentration (120-82-1)

Mass Section 5. Organic Toxic Pollutants (GC/MS Fraction-Pesticides)

Aldrin 0

Concentration 5.1 (309-00-2)

Mass a-BHC 0

Concentration 5.2 (319-84-6)

Mass

~-BHC 0

Concentration 5.3 (319-85-7)

Mass y-BHC 0

Concentration 5.4 (58-89-9)

Mass i'i-BHC 0

Concentration 5.5 (319-86-8)

Mass Chlordane 0

Concentration 5.6 (57-74-9)

Mass 4,4'-DDT 0

Concentration 5.7 (50-29-3)

Mass 5.8 4,4'-DDE 0

Concentration (72-55-9)

Mass 4,4'-DDD 0

Concentration 5.9 (72-54-8)

Mass Dieldrin 0

Concentration 5.10 (60-57-1)

Mass a-endosulfan 0

Concentration 5.11 (115-29-7)

Mass EPA Form 3510-2C (Revised 3-19)

Page 19

EPA Identification Number NPDES Permit Number Facility Name Outfall Number Form Approved 03/05/19 TN264OO3OO35 TNOO2O168 TVA Watts Bar Nuclear Plant OSN 101 0MB No. 2040-0004

. 1:::1111 :-,1**{.. 1,11:1***---**11,-, 1)3.....,,.:.1:1: ~'l 1 -..-._,1,,11 l='~H' l~I*-* ** * -.:.l !l l.-*U1R-,,._t:!n o,l::I **1*..ii..

IHto**

Presence or Absence Intake (check one)

Effluent (optional)

Pollutant/Parameter Testing Units Maximum Maximum Long-Term Long-(and CAS Number, if available)

Required Believed Believed (specify)

Average Number Number Present Absent Daily Monthly Daily of Term of Discharge Discharge Discharge Analyses Average Analyses (required)

(if available)

Value 5.12

~-endosulfan 0

Concentration (115-29-7)

Mass 5.13 Endosulfan sulfate 0

Concentration (1031-07-8)

Mass Endrin 0

Concentration 5.14 (72-20-8)

Mass 5.15 Endrin aldehyde 0

Concentration (7421 4)

Mass Heptachlor 0

Concentration 5.16 (76-44-8)

Mass 5.17 Heptachlor epoxide 0

Concentration (1024-57-3)

Mass PCB-1242 Concentration 5.18 (53469-21-9) 0 Mass PCB-1254 Concentration 5.1 9 (11097-69-1) 0 Mass PCB-1221 Concentration 5.20 ( 11104-28-2) 0 Mass PCB-1232 Concentration 5.21 (11141-16-5) 0 Mass PCB-1248 Concentration 5.22 (12672-29-6) 0 Mass PCB-1260 0

Concentration 5.23 (11096-82-5)

Mass PCB-1016 Concentration 5.24 (12674-11-2) 0 Mass EPA Form 3510-2C (Revised 3-19)

Page 20

EPA Identification Number Pollutant/Parameter (and CAS Number, if available)

NPDES Perm~ Number Facility Name TVA Watts Bar Nuclear Plant check one Testing Required Believed Present Believed Absent 0

Units (specify)

Concentration Mass Maximum Daily Discharge (required)

Outfall Number Effluent Maximum Monthly Discharge (if available)

Long-Term Average Daily Discharge if available Number of Analyses Form Approved 03/05/19 0MB No. 2040-0004 Intake (optional)

Long-Term Average Value Number of Analyses 1 Sampling shall be conducted according to sufficiently sensitive test procedures (i.e., methods) approved under 40 CFR 136 for the analysis of pollutants or pollutant parameters or required under 40 CFR chapter I, subchapter Nor 0. See instructions and 40 CFR 122.21(e)(3).

EPA Form 3510-2C (Revised 3-19)

Page 21

This page intentionally left blank.

EPA Identification Number NPDES Permit Number Facility Name Outfall Number Form Approved 03/05/19 TN2640030035 TN0020168 TVA Watts Bar Nuclear Plant OSN 101 0MB No. 2040-0004 1::2~.llf(,i,, *** '"'~~1111.,., **,.,1,.,,,..., *** llfJ:l~lll*"mmlf*l,1 a; 1r*!

'IIH Presence or Absence Intake (check one)

Effluent (Optional}

Pollutant Units Maximum Long-Term Believed Believed (specify}

Maximum Daily Monthly Average Daily Number of Long-Term Number of Present Absent Discharge Discharge Discharge Analyses Average Analyses (required}

(if available)

{if available)

Value Check here if you believe all pollutants on Table C to be present in your discharge from the noted outfall. You need not complete the "Presence or Absence" column of Table C for each pollutant.

Check here if you believe all pollutants on Table C to be absent in your discharge from the noted outfall. You need not complete the "Presence or Absence" column of Table C for each pollutant.

Bromide IZ]

Concentration mg/L

<0.0670 1

1.

(24959-67-9)

Mass Chlorine, total IZ]

Concentration mg/L

<0.05

<0.05 135

<0.05 4

2.

residual Mass IZ]

Concentration PCU 15.0 1

15.0 1

3.

Color Mass IZ]

Concentration

4.

Fecal coliform Mass Fluoride IZ]

Concentration mg/L 0.1110 1

0.0865 1

5.

(16984-48-8)

Mass IZ]

Concentration mg/L 0.569 1

0.404 1

6 Nitrate-nitrite Mass Nitrogen, total IZ]

Concentration ug/L 256.0 1

94.6 1

7. organic (as N)

Mass IZ]

Concentration mg/L

<1.59 4

<1.61 4

8.

Oil and grease Mass Phosphorus (as IZ]

Concentration mg/L 0.0482 1

<0.0200 1

9.

P), total (7723-14-0}

Mass Sulfate (as S04)

IZ]

Concentration mg/L 14.3 1

10.2 1

10. (14808-79-8)

Mass IZ]

Concentration mg/L

<0.0330 1

11. Sulfide (as S)

Mass EPA Form 3510-2C (Revised 3-19)

Page 23

EPA Identification Number NPDES Permit Number Facility Name Outfall Number Form Approved 03/05/19 TN2640030035 TN0020168 TVA Watts Bar Nuclear Plant OSN 101 0MB No. 2040-0004

, ***---.. ::::l:-Jl.-,1hi l(I ~ll~:::I~ -**....

- *"l *'l*h* I!'.* ~lfl:::l~Ur*1~J*1*c r11 11*, *.,.... rr.llill(:i~.llir.

m Presence or Absence Intake (check one)

Effluent (Optional)

Pollutant Units Maximum Long-Term Believed Believed (specify)

Maximum Daily Long-Term Present Absent Discharge Monthly Average Daily Number of Average Number of Discharge Discharge Analyses Analyses (required)

/if available\\

(if available)

Value

12. Sulfite (as SQ3) 0 Concentration mg/L 3.20 4

0.96 4

(14265-45-3)

Mass

13. Surfactants 0

Concentration mg/L

<0.0170 1

Mass

14. Aluminum, total 0

Concentration ug/L 73.4 1

90.1 1

(7 429-90-5)

Mass

15. Barium, total 0

Concentration ug/L 28.6 1

22.8 1

(7440-39-3)

Mass

16. Boron, total 0

Concentration ug/L 387 1

12.2 1

(7440-42-8)

Mass

17. Cobalt, total 0

Concentration ug/L

<0.300 1

(7 440-48-4)

Mass

18. Iron, total 0

Concentration ug/L 115 1

119 1

(7439-89-6)

Mass

19. Magnesium, total 0

Concentration ug/L 6880 1

5220 1

(7 439-95-4)

Mass Molybdenum, 0

Concentration ug/L 0.407 1

0.246 1

20. total (7439-98-7)

Mass 21. Manganese, total 0

Concentration ug/L 28.4 1

21.7 1

(7439-96-5)

Mass

22. Tin, total 0

Concentration ug/L

<1.00 1

(7 440-31 -5)

Mass

23. Titanium, total 0

Concentration ug/L

<2.00 1

2.22 1

(7440-32-6)

Mass EPA Form 3510-2C (Revised 3-19)

Page 24

EPA Identification Number NPDES Permit Number Facility Name TVA Watts Bar Nuclear Plant check one Pollutant Believed Believed Units (specify)

Maximum Daily Present Absent Discharge (required)

24. Radioactivity Alpha, total IZl Concentration pCi/L

<2.31 Mass Beta, total IZl Concentration pCi/L 4.71 Mass Radium, total IZl Concentration pCi/L 0.803 Mass Radium 226, total IZl Concentration pCi/L 0.0818 Mass Outfall Number Effluent Maximum Long-Term Monthly Average Daily Number of Discharge Discharge Analyses if available if available 1

1 1

1 Form Approved 03/05/19 0MB No. 2040-0004 Long-Term Number of Average Value Analyses

<2.90 1

3.48 1

0.488 1

0.0584 1

1 Sampling shall be conducted according to sufficiently sensitive test procedures (i.e., methods) approved under 40 CFR 136 for the analysis of pollutants or pollutant parameters or required under 40 CFR chapter I, subchapter Nor 0. See instructions and 40 CFR 122.21 (e)(3).

EPA Form 3510-2C (Revised 3-19)

Page 25

This page intentionally left blank.

EPA ldenllficat1on Number NPDES Permit Number

'"""'~~

TN2640030035 TN0020168 TVA Watts Bar Nuclear Plant OSN 101 OMB No. 2o4o-0oo4 I'"'******<<***"""'"'"' _,.,,_,,,... -~~...,.,,,~,i-,.,*~,,,,.,,,a,-. !Ill '"""

Presence or Absence (check one)

Pollutant Reason Pollutant Believed Present in Discharge Available Qu_antitative Data Believed Believed (specify units)

Present Absent

1. Asbestos 0

Present in Cooling Towers N/A

2. Acetaldehyde 0

3.

Allyl alcohol 0

4.

Allyl chloride 0

5.

Amyl acetate 0

6. Aniline 0

7.

Benzonitrile 0

8.

Benzyl chloride 0

9.

Butyl acetate 0

10. Butylamine 0

11. Captan 0

12.

Carbary!

0

13. Carbofuran 0

14.

Carbon disulfide 0

15. Chlorpyrifos 0

16. Coumaphos 0

17. Cresol 0

18. Crotonaldehyde 0

19. Cyclohexane 0

EPA Form 3510-2C (Revised 3-19)

Page 27

EPA Identification Number NPDES Permit Number F~iityName ~

TN2640030035 TN0020168 TVA Watts Bar Nuclear Plant OSN 101 OMB No. 2040-0004 I.......,... "

..,........ "... ~..,.......

1;;o,.,,r*'*'IIW*1..."1 :l:L"1111L"111 <I Presence or Absence Pollutant (check one)

Reason Pollutant Believed Present in Discharge Available Quantitative Data Believed Believed (specify units)

Present Absent

20. 2,4-D (2,4-dichlorophenoxyacetic acid}

0 21. Diazinon 0

22.

Dicamba 0

23.

Dichlobenil 0

24. Dichlone 0

25. 2,2-dichloropropionic acid 0

26.

Dichlorvos 0

27. Diethyl amine 0

28.

Dimethyl amine 0

29. Dintrobenzene 0

30.

Diquat 0

31. Disulfoton 0

32. Diuron 0

33.

Epichlorohydrin 0

34.

Ethion 0

35. Ethylene diamine 0

(as ethylenediamine tetracidic acid) water additive in training cente n/a

36. Ethylene dibromide 0

37.

Formaldehyde 0

38.

Furfural 0

EPA Form 3510-2C (Revised 3-19)

Page 28

EPA Identification Number I

NPDES Penm1t Number TN2640030035 TN0020168 TV

L,,""II 1*,1rrr.'""f::1-.. *r-* ~H Wll:I Presence or Absence Pollutant (check one)

Reason Pollutant Believed Present in Discharge Available Quantitative Data Believed Believed (specify units)

Present Absent

39. Guthion 0

40.

lsoprene 0

41. lsopropanolamine 0

42. Kelthane 0

43. Kepone 0

44. Malathion 0

45.

Mercaptodimethur 0

46.

Methoxychlor 0

47.

Methyl mercaptan 0

48. Methyl methacrylate 0

49. Methyl parathion 0

50. Mevinphos 0

51. Mexacarbate 0

52. Monoethyl amine 0

53. Monomethyl amine 0

54. Naled 0

55.

Naphthenic acid 0

56. Nitrotoluene 0

57. Parathion 0

EPA Form 3510-2C (Revised 3-1 9)

Page 29

EPA Identification Number NPDES Penni! Number Facility Name Outfall Number Form Approved 03/05/19 TN2640030035 TN0020168 TVA Watts Bar Nuclear Plant OSN 101 OMB No. 2040-0004 Presence or Absence Pollutant (check one)

Reason Pollutant Believed Present in Discharge Available Quantitative Data Believed Believed (specify units)

Present Absent

58. Phenolsulfonate 0

59. Phosgene 0

60. Propargite 0

61.

Propylene oxide 0

Nalco biodetergent 73551 as cooling water additive n/a

62.

Pyrethrins 0

63.

Quinoline 0

64.

Resorcinol 0

65.

Strontium 0

66.

Strychnine 0

67.

Styrene 0

68.

2,4,5-T (2,4,5-trichlorophenoxyacetic 0

acid)

69.

TOE (tetrachlorodiphenyl ethane) 0

70. 2,4,5-TP [2-(2,4,5-trichlorophenoxy) 0 propanoic acidl 71. Trichlorofon 0

72. T riethanolamine 0

73. Triethylamine 0

74.

Trimethylamine 0

75.

Uranium 0

76.

Vanadium 0

EPA Form 3510-2C (Revised 3-19)

Page 30

EPA Identification Number NPDES Permit Number Pollutant check one Believed Present

77.

Vinyl acetate

78. Xylene

79.

Xylenol

80. Zirconium Facility Name Outfall Number TVA Watts Bar Nuclear Plant Believed Reason Pollutant Believed Present in Discharge Absent 0

0 0

0 Form Approved 03/05/19 0MB No. 2040-0004 Available Quantitative Data (specify units) 1 Sampling shall be conducted according to sufficiently sensitive test procedures (i.e., methods) approved under 40 CFR 136 for the analysis of pollutants or pollutant parameters or required under 40 CFR chapter I, subchapter Nor 0. See instructions and 40 CFR 122.21 (e)(3).

EPA Form 3510-2C (Revised 3-19)

Page 31

This page intentionally left blank.

EPA Identification Number Pollutant 2,3,7,8-TCDD EPA Form 3510-2C (Revised 3-19)

NPDES Permit Number Facility Name Congeners Used or Manufactured TVA Watts Bar Nuclear Plant check one Believed Believed Present Absent 0

Outfall Number Results of Screening Procedure Form Approved 03/05/19 0MB No. 2040-0004 Page 33

EPA Identification Number NPDES Permit Number FacililyNa~

~

TN2640030035 TN0020168 TVA Watts Bar Nuclear Plant IMP 103 OMB No. 2D40-0004 1 =- *-.. *1,,u~:::i,,1~(*1*'"1*;1~11

...,*-lh,lu;;;;a lll]l,,,,_

*-- -fl,H ~,-Ju 1**' 1111 Effluent Intake (Optional}

Waiver Units Maximum Maximum Long-Term Pollutant Requested (specify)

Daily Monthly Average Daily Number of Long-Term Number of (if applicable)

Discharge Discharge Discharge Analyses Average Value Analyses (required)

(if available)

Check here if you have applied to your NPDES permitting authority for a waiver for all of the pollutants listed on this table for the noted outfall.

Biochemical oxygen demand Concentration mg/L 5.65 1

1.

(BODs)

Mass Chemical oxygen demand Concentration mg/L 19.1 1

2.

(COD)

Mass Concentration mg/L 3.36 1

3. Total organic carbon (TOC)

Mass Concentration mg/L 1.25 1

4.

Total suspended solids (TSS)

Mass Concentration mg/L 6.05 1

5. Ammonia (as N)

Mass

6. Flow Rate MGD 0.972 0.347 778 Temperature (winter)

c

c 13.8 10.7 4

7.

Temperature (summer)

c

c pH (minimum)

Standard units s.u.

6.2 37

8.

pH (maximum)

Standard units s.u.

8.8 37 1 Sampling shall be conducted according to sufficiently sensitive test procedures (i.e., methods) approved under 40 CFR 136 for the analysis of pollutants or pollutant parameters or required under 40 CFR chapter I, subchapter Nor 0. See instructions and 40 CFR 122.21 (e)(3).

EPA Form 3510-2C (Revised 3-19)

Page 9

This page intentionally left blank.

EPA Identification Number NPDES Penmit Number Facility Name Outfall Number Form Approved 03/05/19 TN2640030035 TN0020168 TVA Watts Bar Nuclear Plant IMP 103 0MB No. 2040-0004

l****-ilil;;a *

, 11]=-

l -,t* ~=* N*1----*,~IIHJ;:{Cf.,,,,,_, lt.t*-

1 ***~** 1* *'~1-,""lfi l aij:I 11,~u-Presence or Absence Intake (check one)

Effluent (optional)

Pollutant/Parameter Testing Units Maximum Maximum Long-Term Long-(and CAS Number, if available)

Required Believed Believed (specify)

Daily Monthly Average Number Term Number Present Absent Daily of of Discharge Discharge Discharge Analyses Average Analyses (required)

(if available)

Value Check here if you qualify as a small business per the instructions to Form 2C and, therefore, do not need to submit quantitative data for any of the organic toxic pollutants in Sections 2 through 5 of this table. Note, however, that you must still indicate in the appropriate column of this table if you believe any of the pollutants listed are present in your discharge.

Section 1. Toxic Metals, Cyanide, and Total Phenols Antimony, total 0

Concentration ug/L

<1.00 1

1.1 (7 440-36-0)

Mass Arsenic, total 0

Concentration ug/L

<2.00 1

1.2 (7 440-38-2)

Mass Beryllium, total 0

Concentration ug/L

<0.200 1

1.3 (7 440-41 -7)

Mass Cadmium, total 0

Concentration ug/L

<0.300 1

1.4 (7 440-43-9)

Mass Chromium, total 0

Concentration ug/L

<3.00 1

1.5 (7 440-4 7 -3)

Mass Copper, total 0

Concentration ug/L 5.09 1

1.6 (7 440-50-8)

Mass Lead, total 0

Concentration ug/L

<0.500 1

1.7 (7 439-92-1)

Mass Mercury, total 0

Concentration ng/L 1.35 1.02 4

1.8 (7439-97-6)

Mass Nickel, total 0

Concentration ug/L

<0.600 1

1.9 (7 440-02-0)

Mass Selenium, total 0

Concentration ug/L

<2.00 1

1.10 (7782-49-2)

Mass Silver, total 0

Concentration ug/L

<0.300 1

1.1 1 (7440-22-4)

Mass EPA Form 3510-2C (Revised 3-19)

Page 11

EPA Identification Number NPDES Penmit Number Facility Name Outfall Number Form Approved 03/05/19 TN2640030035 TN0020168 TVA Watts Bar Nuclear Plant IMP 103 0MB No. 2040-0004

1:1~*11):4,-.... --.

',U 111:::11 1111"*1 !J!I: ~u11-..... *Hl***1~1M.,~11-1a1*trlil"J*TIIIYf.UIL.""'r,11*.. - -*---....

Ill'*

Presence or Absence Intake

/check one)

Effluent (optional)

Pollutant/Parameter Testing Units Maximum Maximum Long-Term Long-(and CAS Number, if available)

Required Believed Believed (specify)

Average Number Number Present Absent Daily Monthly Daily of Term of Discharge Discharge Discharge Analyses Average Analyses (required)

(if available)

Value 1.12 Thallium, total IZl Concentration ug/L

<0.600 1

(7440-28-0)

Mass 1.13 Zinc, total IZl Concentration ug/L 36.6 1

(7 440-66-6)

Mass 1.1 4 Cyanide, total IZl Concentration ug/L

<1.67

<l.67 4

(57-12-5)

Mass 1.1 5 Phenols, total IZl Concentration ug/L 4.46 1.77 4

Mass Section 2. Organic Toxic Pollutants (GC/MS Fraction-Volatile Compounds) 2.1 Acrolein*

IZl Concentration ug/L

<1.67

<1.67 4

(107-02-8)

Mass 2.2 Acrylonitrile

IZl Concentration ug/L

<1.67

<1.67 4

(107-13-1)

Mass Benzene

Concentration ug/L

<0.333

<0.333 4

2.3 IZl (71-43-2)

Mass 2.4 Bromoform

IZl Concentration ug/L

<0.333

<0.333 4

(75-25-2)

Mass 2.5 Carbon tetrachloride

IZl Concentration ug/L

<0.333

<0.333 4

(56-23-5)

Mass 2.6 Chlorobenzene*

IZl Concentration ug/L

<0.333

<0.333 4

(108-90-7)

Mass Chlorodibromomethane

Concentration ug/L

<0.333

<0.333 4

2.7 IZl (124-48-1)

Mass Chloroethane

Concentration ug/L

<0.333

<0.333 4

2.8 IZl (75-00-3)

Mass

Denotes four grab samples were analyzed individually instead of compositing in the laboratory prior to analyses, all results were non-detect and TV A does not believe the analysis method affected the results.

EPA Form 3510-2C (Revised 3-19)

Page 12

EPA Identification Number NPDES Permit Number Facility Name Outfall Number Form Approved 03/05/19 TN2640030035 TN0020168 TVA Watts Bar Nuclear Plant IMP 103 0MB No. 2040-0004

. 1:::11 =-~tHrM11Jl:af'*1

'*1.1 ""' l*llf*1* ~:1:,ua 1 --*i1~11 1 ~lt:t 1~1--, :a *. w,..

T11 llf'ili,_I,.,... ~,.,...

11:.... _,.,,.

Presence or Absence Intake (check one)

Effluent (optional)

Pollutant/Parameter Testing Units Maximum Maximum Long-Term Long-(and CAS Number, if available)

Required Believed Believed (specify)

Average Number Number Present Absent Daily Monthly Daily of Term of Discharge Discharge Discharge Analyses Average Analyses (required)

(if available)

(if available l Value 2-chloroethylvinyl ether

Concentration ug/L

<1.67

<1.67 4

2.9 lZl (110-75-8)

Mass Concentration ug/L 1.31 1.19 4

2.10 Chloroform (67-66-3) lZl Mass 2.11 Dichlorobromomethane

lZl Concentration ug/L

<0.333

<0.333 4

(75-27-4)

Mass 1, 1-dichloroethane

Concentration ug/L

<0.333

<0.333 4

2.12 lZl (75-34-3)

Mass 2.13 1,2-dichloroethane*

lZl Concentration ug/L

<0.333

<0.333 4

(107-06-2)

Mass 2.14 1, 1-dichloroethylene

lZl Concentration ug/L

<0.333

<0.333 4

(75-35-4)

Mass 2.15 1,2-dichloropropane

lZl Concentration ug/L

<0.333

<0.333 4

(78-87-5)

Mass 2.16 1,3-dichloropropylene

lZl Concentration ug/L

<0.333

<0.333 4

(542-75-6)

Mass 2.17 Ethylbenzene

lZl Concentration ug/L

<0.333

<0.333 4

(100-41-4)

Mass 2.18 Methyl bromide*

lZl Concentration ug/L

<0.337

<0.337 4

(74-83-9)

Mass 2.19 Methyl chloride

lZl Concentration ug/L

<0.333

<0.333 4

(74-87-3)

Mass Methylene chloride

lZl Concentration ug/L

<1.67

<1.67 4

2.20 (75-09-2)

Mass 2.21 1, 1,2,2-tetrachloroethane

lZl Concentration ug/L

<0.333

<0.333 4

(79-34-5)

Mass EPA Form 3510-2C (Revised 3-19)

Page 13

Denotes four grab samples were analyzed individually instead of compositing in the laboratory prior to analyses, all results were non-detect and TV A does not believe the analysis method affected the results.

EPA Identification Number NPDES Permit Number Facility Name Outfall Number Farm Approved 03/05/19 TN2640030035 TN0020168 TVA Watts Bar Nuclear Plant IMP 103 0MB No. 2040-0004

'1 :;Jl:*11***1 11_.,_._,.._....__,,_._,~ *******1*,..~1;1,,, *--*1,,r, "lH** u.,, -:i:111111r,,,,, -.,u* II**~ Ii 11111 Presence or Absence Intake

{check one)

Effluent (optional)

Pollutant/Parameter Testing Units Maximum Maximum Long-Term Long-(and CAS Number, if available)

Required Believed Believed (specify)

Daily Monthly Average Number Term Number Present Absent Discharge Discharge Daily of Average of (required)

(if available)

Discharge Analyses Value Analyses

{if available)

Tetrachloroethylene

0 Concentration ug/L

<0.333

<0.333 4

2.22 (127-18-4)

Mass Toluene

0 Concentration ug/L

<0.333

<0.333 4

2.23 (108-88-3)

Mass 1,2-trans-dichloroethylene

Concentration ug/L

<0.333

<0.333 4

2.24 0

(156-60-5)

Mass 1, 1, 1-trichloroethane

Concentration ug/L

<0.333

<0.333 4

2.25 (71-55-6) 0 Mass 1, 1,2-trichloroethane

0 Concentration ug/L

<0.333

<0.333 4

2.26 (79-00-5)

Mass Trichloroethylene*

Concentration ug/L

<0.333

<0.333 4

2.27 0

(79-01-6)

Mass Vinyl chloride

0 Concentration ug/L

<0.333

<0.333 4

2.28 (75-01-4)

Mass Section 3. Organic Toxic Pollutants (GC/MS Fraction-Acid Compounds) 2-chlorophenol 0

Concentration ug/L

<2.89 1

3.1 (95-57-8)

Mass 2,4-dichlorophenol 0

Concentration ug/L

<2.89 1

3.2 (120-83-2)

Mass 2,4-dimethylphenol 0

Concentration ug/L

<2.89 1

3.3 (105-67-9)

Mass 4,6-dinitro-o-cresol 0

Concentration ug/L

<2.89 1

3.4 (534-52-1)

Mass 2,4-dinitrophenol 0

Concentration ug/L

<4.82 1

3.5 (51-28-5)

Mass

Denotes four grab samples were analyzed individually instead of compositing in the laboratory prior to analyses, all results were non-detect and TV A does not believe the analysis method affected the results.

Page 14

EPA Identification Number NPDES Permtt Number Facility Name Outfall Number Form Approved 03/05/19 TN2640030035 TN0020168 TVA Watts Bar Nuclear Plant IMP 103 0MB No. 2040-0004

" ;;a :*11u1.. 1*1l:::llr~~*1,,

t1;;a n***1*".l:t l~I,,..._.._,1,,1***1~4C'J' l~I r111u1111:111 n,r,1,,,L...., ;i, ** ~.

Ill'*

Presence or Absence Intake (check one)

Effluent (optional)

Pollutant/Parameter Testing Units Maximum Maximum Long-Term Long-(and CAS Number, if available)

Required Believed Believed (specify)

Average Number Number Present Absent Daily Monthly Daily of Term of Discharge Discharge Discharge Analyses Average Analyses (required)

(if available)

Value 3.6 2-nitrophenol IZI Concentration ug/L

<2.89 1

(88-75-5)

Mass 3.7 4-nitrophenol IZI Concentration ug/L

<2.89 1

(100-02-7)

Mass 3.8 p-chloro-m-cresol IZI Concentration ug/L

<2.89 1

(59-50-7)

Mass 3.9 Pentachlorophenol IZI Concentration ug/L

<2.89 1

(87-86-5)

Mass 3.10 Phenol IZI Concentration ug/L

<2.89 1

(108-95-2)

Mass 3.11 2,4,6-trichlorophenol IZI Concentration ug/L

<2.89 1

(88-05-2)

Mass Section 4. Organic Toxic Pollutants (GC/MS Fraction-Base /Neutral Compounds) 4.1 Acenaphthene IZI Concentration (83-32-9)

Mass 4.2 Acenaphthylene IZI Concentration (208-96-8)

Mass 4.3 Anthracene IZI Concentration (120-12-7)

Mass 4.4 Benzidine IZI Concentration (92-87-5)

Mass 4.5 Benzo (a) anthracene IZI Concentration (56-55-3)

Mass 4.6 Benzo (a) pyrene IZI Concentration (50-32-8)

Mass EPA Form 3510-2C (Revised 3-19)

Page 15

EPA Identification Number NPDES Permit Number Facility Name Outfall Number Form Approved 03/05/19 TN2640030035 TN0020168 TVA Watts Bar Nuclear Plant IMP 103 0MB No. 2040-0004

. 1::::1=***** 1-,m--,,-m;!,1., 1[:I **1*,**:-1:1:.,1e1-...~,~~IIIll~-4.n 1.,1,-

11

I-r.g... i,.,......,uJU *::::i lli.,JilAl.li.....,...

Presence or Absence Intake (check one)

Effluent (optional)

Pollutant/Parameter Testing Units Maximum Maximum Long-Term Long-(and GAS Number, if available)

Required Believed Believed (specify)

Daily Monthly Average Number Term Number Present Absent Daily of of Discharge Discharge Discharge Analyses Average Analyses (required)

(if available)

{if available)

Value 3,4-benzofiuoranthene

[Z]

Concentration 4.7 (205-99-2)

Mass 4.8 Benzo (ghi) perylene

[Z]

Concentration (191-24-2)

Mass Benzo (k) fiuoranthene

[Z]

Concentration 4.9 (207-08-9)

Mass Bis (2-chloroethoxy) methane

[Z]

Concentration 4.10 (111-91 -1)

Mass Bis (2-chloroethyl) ether

[Z]

Concentration 4.11 (111-44-4)

Mass Bis (2-chloroisopropyl} ether

[Z]

Concentration 4.12 (102-80-1)

Mass Bis (2-ethylhexyl) phthalate

[Z]

Concentration 4.13 (117-81-7)

Mass 4-bromophenyl phenyl ether

[Z]

Concentration 4.14 (101-55-3)

Mass Butyl benzyl phthalate

[Z]

Concentration 4.15 (85-68-7)

Mass 2-chloronaphthalene

[Z]

Concentration 4.16 (91-58-7)

Mass 4-chlorophenyl phenyl ether

[Z]

Concentration 4.17 (7005-72-3)

Mass Chrysene

[Z]

Concentration 4.18 (218-01-9)

Mass Dibenzo (a,h) anthracene

[Z]

Concentration 4.19 (53-70-3)

Mass EPA Form 3510-2C (Revised 3-19)

Page 16

EPA Identification Number NPDES Permit Number Facility Name Outfall Number Form Approved 03/05/19 TN2640030035 TN0020168 TVA Watts Bar Nuclear Plant IMP 103 0MB No. 2040-0004

- I *.... illl=-*!Bm?......,,. 'l:le M11,-....._,1,111*1J~4t'f'l,111-l1 * **- 'l*

111J~1,,1

'l -::I Presence or Absence Intake (check one)

Effluent (optional)

Pollutant/Parameter Testing Units Maximum Maximum Long-Term Long-(and CAS Number, if available)

Required Believed Believed (specify)

Daily Monthly Average Number Term Number Present Absent Daily of of Discharge Discharge Discharge Analyses Average Analyses (required)

(if available)

Value 4.20 1,2-dichlorobenzene IZI Concentration (95-50-1)

Mass 4.21 1,3-dichlorobenzene IZI Concentration (541-73-1)

Mass 1,4-dichlorobenzene IZI Concentration 4.22 (106-46-7)

Mass 3,3-dichlorobenzidine IZI Concentration 4.23 (91-94-1)

Mass Diethyl phthalate IZI Concentration 4.24 (84-66-2)

Mass Dimethyl phthalate IZI Concentration 4.25 (131-11-3)

Mass Di-n-butyl phthalate IZI Concentration 4.26 (84-74-2)

Mass 2,4-dinitrotoluene IZI Concentration 4.27 (121-14-2)

Mass 2,6-dinitrotoluene IZI Concentration 4.28 (606-20-2)

Mass Di-n-octyl phthalate IZI Concentration 4.29 (117-84-0)

Mass 1,2-Diphenylhydrazine IZI Concentration 4.30 (as azobenzene) (122-66-7)

Mass Fluoranthene IZI Concentration 4.31 (206-44-0)

Mass Fluorene IZI Concentration 4.32 (86-73-7)

Mass EPA Form 3510-2C (Revised 3-19)

Page 17

EPA Identification Number NPDES Permit Number Facility Name Outfall Number Form Approved 03/05/19 TN2640030035 TN0020168 TVA Watts Bar Nuclear Plant IMP 103 0MB No. 2040-0004

1 ;a: a1u.,1.. 11n;;aJ!,...__....,.,~ 113....,,-*~:1

,,111a."W *,~l1 11~ltf*,.,,,_, It.I*-

- - IU!,~-1-"'l~ll M:l ~r~;.. 11,11*****

Presence or Absence Intake (check one)

Effluent (optional)

Pollutant/Parameter Testing Units Maximum Maximum Long-Term Long-(and CAS Number, if available)

Required Believed Believed (specify)

Daily Monthly Average Number Term Number Present Absent Daily of of Discharge Discharge Discharge Analyses Average Analyses (required)

(if available)

Value Hexachlorobenzene 0

Concentration 4.33 (118-74-1)

Mass Hexachlorobutadiene 0

Concentration 4.34 (87-68-3)

Mass Hexachlorocyclopentadiene 0

Concentration 4.35 (77-47-4)

Mass Hexachloroethane 0

Concentration 4.36 (67-72-1)

Mass lndeno (1,2,3-cd) pyrene 0

Concentration 4.37 (193-39-5)

Mass lsophorone 0

Concentration 4.38 (78-59-1)

Mass Naphthalene 0

Concentration 4.39 (91-20-3)

Mass Nitrobenzene 0

Concentration 4.40 (98-95-3)

Mass N-nitrosodimethylamine 0

Concentration 4.41 (62-75-9)

Mass N-nitrosodi-n-propylamine 0

Concentration 4.42 (621-64-7)

Mass N-nitrosodiphenylamine 0

Concentration 4.43 (86-30-6)

Mass Phenanthrene 0

Concentration 4.44 (85-01 -8)

Mass Pyrene 0

Concentration 4.45 (129-00-0)

Mass EPA Form 351 0-2C (Revised 3-19)

Page 18

EPA Identification Number NPDES Permit Number Facility Name Outfall Number Form Approved 03/05/19 TN2640030035 TN0020168 TVA Watts Bar Nuclear Plant IMP 103 0MB No. 2040-0004

. 1:1 =--*** U.. l,,1--*

.,., **=-

- - "*:.1: 1:,, 1 *-- *1,,11*11;n,, 1,11,_, 11.,,-:.111 *** *1~*...

--**!1 *::1 mi Presence or Absence Intake (check one)

Effluent (optional)

Pollutant/Parameter Testing Units Maximum Maximum Long-Term Long-(and CAS Number, if available)

Required Believed Believed (specify)

Daily Monthly Average Number Term Number Present Absent Daily of of Discharge Discharge Discharge Analyses Average Analyses (required}

(if available)

Value 4.46 1,2,4-trichlorobenzene IZI Concentration (120-82-1)

Mass Section 5. Organic Toxic Pollutants (GC/MS Fraction-Pesticides)

Aldrin IZI Concentration 5.1 (309-00-2)

Mass a-BHC IZI Concentration 5.2 (319-84-6)

Mass

~-BHC IZI Concentration 5.3 (319-85-7)

Mass y-BHC IZI Concentration 5.4 (58-89-9)

Mass i5-BHC IZI Concentration 5.5 (319-86-8)

Mass Chlordane IZI Concentration 5.6 (57-74-9)

Mass 4,4'-DDT IZI Concentration 5.7 (50-29-3)

Mass 5.8 4,4'-DDE IZI Concentration (72-55-9)

Mass 4,4'-DDD IZI Concentration 5.9 (72-54-8)

Mass Dieldrin IZI Concentration 5.10 (60-57-1)

Mass a-endosulfan IZI Concentration 5.11 (115-29-7)

Mass EPA Form 3510-2C (Revised 3-19)

Page 19

EPA Identification Number NPDES Permit Number Facility Name Outfall Number Form Approved 03/05/19 TN2640030035 TN0020168 TVA Watts Bar Nuclear Plant IMP 103 0MB No. 2040-0004

- u*1*1I=-*'

,~ **=- (IH'*l*'.!: le,,r1..._.._,1,, 1 1 1~{Cf l~ll..

l.,_,,_ 'l****~r!,~1..

,u111 11~ lli.-...-........ 11 Presence or Absence Intake (check one)

Effluent (optional)

Pollutant/Parameter Testing Units Maximum Maximum Long-Term Long-(and CAS Number, if available)

Required Believed Believed (specify)

Daily Monthly Average Number Term Number Present Absent Daily of of Discharge Discharge Discharge Analyses Average Analyses (required)

(if available)

Value 5.12

~-endosulfan IZ]

Concentration (115-29-7)

Mass 5.13 Endosulfan sulfate IZ]

Concentration (1031-07-8)

Mass 5.14 Endrin IZ]

Concentration (72-20-8)

Mass 5.15 Endrin aldehyde IZ]

Concentration (7421-93-4)

Mass Heptachlor IZ]

Concentration 5.16 (76-44-8)

Mass 5.17 Heptachlor epoxide IZ]

Concentration (1024-57-3)

Mass PCB-1242 Concentration 5.18 (53469-21-9)

IZ]

Mass PCB-1254 IZ]

Concentration 5.19 (11097-69-1)

Mass PCB-1221 IZ]

Concentration 5.20 (11104-28-2)

Mass PCB-1232 IZ]

Concentration 5.21 (11141 5)

Mass PCB-1248 IZ]

Concentration 5.22 (12672-29-6)

Mass PCB-1260 IZ]

Concentration 5.23 (11096-82-5)

Mass PCB-1016 IZ]

Concentration 5.24 (12674-11-2)

Mass EPA Form 3510-2C (Revised 3-19)

Page 20

EPA Identification Number NPDES Permit Number Facility Name TVA Watts Bar Nuclear Plant check one Pollutant/Parameter Testing Units (and CAS Number, if available)

Required Believed Believed (specify)

Present Absent 5.25 Toxaphene IZ1 Concentration (8001-35-2)

Mass Outfall Number Effluent Maximum Maximum Long-Term Average Daily Monthly Daily Discharge Discharge Discharge (required)

(if available) if available Number of Analyses Form Approved 03/05/19 0MB No. 2040-0004 Long-Number Term of Average Analyses Value 1 Sampling shall be conducted according to sufficiently sensitive test procedures (i.e., methods) approved under 40 CFR 136 for the analysis of pollutants or pollutant parameters or required under 40 CFR chapter I, subchapter Nor 0. See instructions and 40 CFR 122.21 (e)(3).

EPA Form 3510-2C (Revised 3-19)

Page 21

This page intentionally left blank.

EPA Identification Number NPDES Permit Number Facility Name Outfall Number Form Approved 03/05/19 TN2640030035 TN0020168 TVA Watts Bar Nuclear Plant IMP 103 0MB No. 2040-0004 1*:::1~-1:*~1h.'*91.*

'l'J:::l~ -I.,,,1-*l\\'I l \\'IIJl' III* ~llJ :::1~1 IIIJ*1f *1,. 111 -*1,, *.,

I Presence or Absence Intake (check one)

Effluent (Optional)

Pollutant Units Maximum Long-Term Believed Believed (specify)

Maximum Daily Monthly Average Daily Number of Long-Term Number of Present Absent Discharge Discharge Discharge Analyses Average Analyses (requireq)

(if available)

Value Check here if you believe all pollutants on Table C to be present in your discharge from the noted outfall. You need not complete the "Presence or Absence" column of Table C for each pollutant.

Check here if you believe all pollutants on Table C to be absent in your discharge from the noted outfall. You need not complete the "Presence or Absence" column of Table C for each pollutant.

Bromide IZ]

Concentration ug/L 0.141 1

1.

(24959-67-9)

Mass Chlorine, total IZ]

Concentration ug/L

<0.05

<0.05 4

2. residual Mass IZ]

Concentration PCU 15.0 1

3.

Color Mass IZ]

Concentration

4.

Fecal coliform Mass Fluoride IZ]

Concentration mg/L 0.108 1

5.

(16984-48-8)

Mass IZ]

Concentration mg/L 1.37 1

6 Nitrate-nitrite Mass Nitrogen, total IZ]

Concentration ug/L 1360 1

7.

organic (as N)

Mass IZ]

Concentration mg/L

<13.5

<4.6 31

8.

Oil and grease Mass Phosphorus (as IZ]

Concentration mg/L 0.362 1

9.

P), total (7723-1 4-0)

Mass Sulfate (as S04)

IZ]

Concentration mg/L 19.3 1

10. (14808-79-8)

Mass IZ]

Concentration mg/L

<0.0330 1

11. Sulfide (as S)

Mass EPA Form 3510-2C (Revised 3-19)

Page 23

EPA Identification Number NPDES Permit Number Facility Name Outfall Number Form Approved 03/05/19 TN2640030035 TN0020168 TVA Watts Bar Nuclear Plant IMP 103 0MB No. 2040-0004 l~,11**,I~***,,m:::1,,111 1,,,.,,~1 -,,,.,.,.ow;1,,,..,j,..,,.111ra1.,l'i, ~

r ll **' *n "'.,..,.. -

Presence or Absence Intake (check one)

Effluent (Optional)

Pollutant Units Maximum Long-Term Believed Believed (specify)

Maximum Daily Long-Term Present Absent Discharge Monthly Average Daily Number of Average Number of Discharge Discharge Analyses Analyses (required)

/if available l (if available)

Value

12. Sulfite (as SQ3)

IZ]

Concentration mg/L 0.64 0.64 4

(14265-45-3)

Mass

13. Surfactants IZ]

Concentration mg/L

<0.170 1

Mass

14. Aluminum, total IZ]

Concentration ug/L 68.2 1

(7429-90-5)

Mass

15.

Barium, total IZ]

Concentration ug/ L 34.l 1

(7440-39-3)

Mass

16. Boron, total IZ]

Concentration ug/L 27.6 1

(7440-42-8)

Mass

17. Cobalt, total IZ]

Concentration ug/L

<0.300 1

(7 440-48-4)

Mass

18. Iron, total IZ]

Concentration ug/L 62.0 1

(7439-89-6)

Mass

19. Magnesium, total IZ]

Concentration ug/L 9370 1

(7 439-95-4)

Mass Molybdenum, IZ]

Concentration ug/L 2.68 1

20. total (7439-98-7}

Mass

21.

Manganese, total IZ]

Concentration ug/L 21.9 1

(7 439-96-5)

Mass

22. Tin, total IZ]

Concentration ug/L

<1.00 1

(7440-31-5)

Mass

23. Titanium, total IZ]

Concentration ug/L

<2.00 1

(7440-32-6)

Mass EPA Form 3510-2C (Revised 3-19)

Page 24

EPA Identification Number Pollutant

24. Radioactivity Alpha, total Beta, total Radium, total Radium 226, total NPDES Permit Number check one Believed Believed Units (specify)

Present Absent 0

Concentration Mass 0

Concentration Mass Facility Name TVA Watts Bar Nuclear Plant pCi/L pCi/L pCi/L pCi/L Maximum Daily Discharge (required)

<2.35 2.47 0.477 0.110 Outfall Number Effluent Maximum Monthly Discharge if available Long-Term Average Daily Number of Discharge Analyses if available 1

1 1

1 Form Approved 03/05/19 0MB No. 2040-0004 (Optional)

Long-Term Average Value Number of Analyses 1 Sampling shall be conducted according to sufficiently sensitive test procedures (i.e., methods) approved under 40 CFR 136 for the analysis of pollutants or pollutant parameters or required under 40 CFR chapter I, subchapter Nor 0. See instructions and 40 CFR 122.21 (e)(3).

EPA Form 3510-2C (Revised 3-19)

Page 25

This page intentionally left blank.

EPA ldent1ficat1on Number NPDES Permit Number Fae,l~Na~ ~

TN2640030035 TN0020168 TVA Watts Bar Nuclear Plant IMP 103 OMB No. 2o4o-0oo4 1~.11111*,..,1111:,,..,_.,1~,IIIII -..'Ill,.._,.,,,,,, 1.1-,,,*1~11W*l..."l :.:>....._II._..._ *!l llli::1~6.,1'J 1*11**** * *1 1 Presence or Absence Pollutant (check one)

Reason Pollutant Believed Present in Discharge Available Quantitative Data Believed Believed (specify units)

Present Absent

1.

Asbestos 0

2.

Acetaldehyde 0

3. Allyl alcohol 0

4.

Allyl chloride 0

5.

Amyl acetate 0

6.

Aniline 0

7.

Benzonitrile 0

8.

Benzyl chloride 0

9.

Butyl acetate 0

10.

Butylamine 0

11. Caplan 0

12. Carbary!

0

13. Carbofuran 0

14. Carbon disulfide 0

15. Chlorpyrifos 0

16.

Coumaphos 0

17.

Cresol 0

18. Crotonaldehyde 0

19. Cyclohexane 0

EPA Form 3510-2C (Revised 3-19)

Page 27

EPA Identification Number NPDES Permit Number Facn~,,~ ~

TN2640030035 TN0020168 TVA Watts Bar Nuclear Plant IMP 103 OMB No. 2D40-0004

~,1,u1w*t...~~1...._.....,.,._..,.,, 1 11:::::1:ia.-,,.,..,.

i*

1 *.11 Presence or Absence Pollutant (check one)

Reason Pollutant Believed Present in Discharge Available Quantitative Data Believed Believed (specify units)

Present Absent

20. 2,4-D (2,4-dichlorophenoxyacetic acid) 0

21.

Diazinon 0

22.

Dicamba 0

23.

Dichlobenil 0

24. Dichlone 0

25. 2,2-dichloropropionic acid 0

26. Dichlorvos 0

27.

Diethyl amine 0

28. Dimethyl amine 0

29. Dintrobenzene 0

30.

Diquat 0

31.

Disulfoton 0

32. Diuron 0

33. Epichlorohydrin 0

34.

Ethion 0

35. Ethylene diamine 0

36. Ethylene dibromide 0

37. Formaldehyde 0

38. Furfural

[Z]

EPA Form 3510-2C (Revised 3-19)

Page 28

EPA Identification Number NPDES Permit Number i

TN2640030035 TN0020168 TVA Watts Bar Nuclear Plant IMP 103 OMB No. 2o40-0004 1*~*-**..,

1:,,..... ~~01111 :wr...,11 :t,..~**

1i~1***1-:1 !~""'I.._...._......

...,. ~H*.-il:l:aa,Jlf'.J Presence or Absence Pollutant (check one)

Reason Pollutant Believed Present in Discharge Available Quantitative Data Believed Believed (specify units)

Present Absent

39. Guthion 0

40.

lsoprene 0

41. lsopropanolamine 0

42.

Kelthane 0

43. Kepone 0

44. Malathion 0

45. Mercaptodimethur 0

46. Methoxychlor 0

47. Methyl mercaptan 0

48.

Methyl methacrylate 0

49.

Methyl parathion 0

50. Mevinphos 0

51. Mexacarbate 0

52. Monoethyl amine 0

53.

Monomethyl amine 0

54. Naled 0

55.

Naphthenic acid 0

56. Nitrotoluene 0

57. Parathion 0

EPA Form 3510-2C (Revised 3-19)

Page 29

~ ~~N~

N~~ ~

TN2640030035 TN0020168 TVA 04 l

l:l"**.,"1~.llf*ll~ ;r*Y.1*1'JII*1 1...._.... 1 :J.."tf*l*",:::>......_,,,,11w,1....~ :i~~**~~,11 -i::1 Presence or Absence Pollutant (check onel Reason Pollutant Believed Present in Discharge Available Quantitative Data Believed Believed (specify units)

Present Absent

58. Phenolsulfonate 0

59. Phosgene 0

60.

Propargite 0

61. Propylene oxide 0

62. Pyrethrins 0

63.

Quinoline 0

64.

Resorcinol 0

65.

Strontium 0

66. Strychnine 0

67.

Styrene 0

68. 2,4,5-T (2,4,5-trichlorophenoxyacetic 0

acid)

69.

TOE (tetrachlorodiphenyl ethane) 0

70. 2,4,5-TP [2-(2,4,5-trichlorophenoxy) 0 orooanoic acidl 71. Trichlorofon 0

72. Triethanolamine 0

73. T riethylamine 0

74. T rimethylamine 0

75. Uranium 0

76. Vanadium 0

EPA Form 3510-2C (Revised 3-19)

Page 30

EPA Identification Number NPDES Permit Number Pollutant check one Believed Present

77.

Vinyl acetate

78.

Xylene

79. Xylenol

80.

Zirconium Facility Name Outfall Number TVA Watts Bar Nuclear Plant Believed Reason Pollutant Believed Present in Discharge Absent IZ]

IZ]

Form Approved 03/05/19 0MB No. 2040-0004 Available Quantitative Data (specify units) 1 Sampling shall be conducted according to sufficiently sensitive test procedures (i.e., methods) approved under 40 CFR 136 for the analysis of pollutants or pollutant parameters or required under 40 CFR chapter I, subchapter Nor 0. See instructions and 40 CFR 122.21 (e)(3).

EPA Form 3510-2C (Revised 3-19)

Page 31

This page intentionally left blank.

EPA Identification Number Pollutant 2,3,7,8-TCDD EPA Form 3510-2C (Revised 3-19)

NPDES Permit Number Facility Name Congeners Used or Manufactured TVA Watts Bar Nuclear Plant check one Believed Believed Present Absent 0

Outfall Number Results of Screening Procedure Form Approved 03/05/19 0MB No. 2040-0004 Page 33

EPA Identification Number NPDES Permit Number FacilltyNa~ ~

TN2640030035 TN0020168 TVA Watts Bar Nuclear Plant OSN 113 OMB No. 2040-D004

--:*1.,m~~**r11,u,1**1,,111 11,, ao:l l ~lT~ :::I ~ 1111 ra1.u*,1**1*

l.lf,U IL"'I,.,m:, *.,.,_.,

111 Effluent Intake (Ootionall Waiver Units Maximum Maximum Long-Term Pollutant Requested (specify)

Daily Monthly Average Daily Number of Long-Term Number of (if applicable)

Discharge Discharge Discharge Analyses Average Value Analyses

/reauired)

/if available)

(if available)

Check here if you have applied to your NPDES permitting authority for a waiver for all of the pollutants listed on this table for the noted outfall.

Biochemical oxygen demand Concentration mg/L

<l.00 1

<1.00 1

1.

(BO05)

Mass Chemical oxygen demand Concentration mg/L 11.6 1

21.6 1

2.

(COD)

Mass Concentration mg/L 2.02 1

1.84 1

3.

Total organic carbon (TOC)

Mass Concentration mg/L 21.0 6.1 61 3.80 1

4.

Total suspended solids (TSS)

Mass Concentration mg/L 0.0634 1

0.0364 1

5.

Ammonia (as N)

Mass

6.

Flow Rate MGD 201.89 61.99 919.00 Temperature (winter) oc oc 31.0 18.0 461.0 8.4 4

7.

Temperature ( summer) oc oc 41.1 28.2 458.0 N/A N/A pH (minimum)

Standard units s.u.

6.1 36 7.76

8.

pH (maximum)

Standard units s.u.

8.9 36 8.29 1 Sampling shall be conducted according to sufficiently sensitive test procedures (i.e., methods) approved under 40 CFR 136 for the analysis of pollutants or pollutant parameters or required under 40 CFR chapter I, subchapter Nor 0. See instructions and 40 CFR 122.21 (e)(3).

EPA Form 3510-2C (Revised 3-19) 4 4

Page 9

This page intentionally left blank.

EPA Identification Number NPDES Permit Number Facility Name Outfall Number Form Approved 03/05/19 TN2640030035 TN0020168 TVA Watts Bar Nuclear Plant OSN 113 0MB No. 2040-0004

.,.........ai.,!.,~

1***1*!.l~I: \\'I * --._,,\\,I I.I) :"4rr*,,,,._

1 **1-

,,,--~

Presence or Absence Intake (check one)

Effluent (optional)

Pollutant/Parameter Testing Units Maximum Maximum Long-Term Long-(and CAS Number, if available)

Required Believed Believed (specify)

Daily Monthly Average Number Term Number Present Absent Daily of of Discharge Discharge Discharge Analyses Average Analyses (required)

(if available)

Value Check here if you qualify as a small business per the instructions to Form 2C and, therefore, do not need to submit quantitative data for any of the organic toxic pollutants in Sections 2 through 5 of this table. Note, however, that you must still indicate in the appropriate column of this table if you believe any of the pollutants listed are present in your discharge.

Section 1. Toxic Metals, Cyanide, and Total Phenols Antimony, total IZI Concentration ug/L

<1.00 1

1.1 (7 440-36-0)

Mass Arsenic, total IZI Concentration ug/L

<2.00 1

1.2 (7 440-38-2)

Mass Beryllium, total IZI Concentration ug/L

<0.200 1

1.3 (7440-41-7)

Mass Cadmium, total IZI Concentration ug/L

<0.300 1

1.4 (7 440-43-9)

Mass Chromium, total IZI Concentration ug/L

<3.00 1

1.5 (7 440-4 7 -3)

Mass Copper, total 0

Concentration ug/L 2.54 1

0.971 1

1.6 (7 440-50-8)

Mass Lead, total 0

Concentration ug/L

<0.500 1

1.7 (7 439-92-1)

Mass Mercury, total IZI Concentration ng/L 2.16 1.81 4

<1.56 4

1.8 (7 439-97-6)

Mass Nickel, total IZI Concentration ug/L

<0.600 1

1.9 (7440-02-0)

Mass Selenium, total IZI Concentration ug/L

<2.00 1

1.10 (7782-49-2)

Mass Silver, total 0

Concentration ug/L

<0.300 1

1.11 (7440-22-4)

Mass EPA Form 3510-2C (Revised 3-19)

Page 11

EPA Identification Number NPDES Permit Number Facility Name Outfall Number Form Approved 03/05/19 TN264OO3OO35 TNOO2O168 TVA Watts Bar Nuclear Plant OSN 113 0MB No. 2040-0004

~1*=-~*,.. *"""""l'll_.*~1~,,.., 11***1 ::.1:1

~11 "-~*1,,1 1 11.u,.*,.,.... 1 1,u_!I l.. ~1~'1L.,.FJ l -:::::1 Presence or Absence Intake (check one)

Effluent (optional)

Pollutant/Parameter Testing Units Maximum Maximum Long-Term Long-(and CAS Number, if available)

Required Believed Believed (specify)

Average Number Number Present Absent Daily Monthly Daily of Term of Discharge Discharge Discharge Analyses Average Analyses (required)

(if available)

Value 1.12 Thallium, total 0

Concentration ug/L

<0.600 1

(7 440-28-0)

Mass 1.13 Zinc, total 0

Concentration ug/L 19.7 1

3.54 1

(7 440-66-6)

Mass 1.14 Cyanide, total 0

Concentration ug/L

<1.67

<1.67 4

<1.67 1

(57-12-5)

Mass 1.15 Phenols, total 0

Concentration ug/L 1.70

<1.67 4

<2.04 4

Mass Section 2. Organic Toxic Pollutants (GC/MS Fraction-Volatile Compounds) 2.1 Acrolein

0 Concentration ug/L

<1.67

<1.67 4

(107-02-8)

Mass 2.2 Acrylonitrile*

0 Concentration ug/L

<1.67

<1.67 4

(107-13-1)

Mass 2.3 Benzene

0 Concentration ug/L

<0.333

<0.333 4

(71-43-2)

Mass 2.4 Bromoform

0 Concentration ug/L

<0.333

<0.333 4

(75-25-2)

Mass 2.5 Carbon tetrachloride*

0 Concentration ug/L

<0.333

<0.333 4

(56-23-5)

Mass Chlorobenzene Concentration ug/L

<0.333

<0.333 2.6 0

4

<0.333 4

(108-90-7)

Mass Chlorodibromomethane Concentration ug/L

<0.333

<0.333 4

2.7 0

(124-48-1)

Mass 2.8 Chloroethane*

0 Concentration ug/L

<0.333

<0.333 4

(75-00-3)

Mass

Denotes four grab samples were analyzed individually instead of compositing in the laboratory prior to analyses, all results were non-detect and TV A does not believe the analysis method affected the results.

EPA Form 3510-2C (Revised 3-19)

Page 12

EPA Identification Number TN2640030035 NPDES Permit Number TN0020168 Facility Name TVA Watts Bar Nuclear Plant

1::a:*1..11-111 1

....,it~,~,lJ l1t1*,11*:J:1,,r,1--.-.,,~11I11~,n*1,,,,_,... r.. ".I********'*'*.._.._,,,

Pollutant/Parameter (and CAS Number, if available) 2.9 2-chloroethylvinyl ether*

(110-75-8) 2.10 Chloroform (67-66-3)

Dichlorobromomethane

2*11 (75-27-4) 1, 1-dichloroethane

2* 12 (75-34-3) 1,2-dichloroethane*

2* 13 (107-06-2) 1, 1-dichloroethylene

2* 14 (75-35-4) 1,2-dichloropropane

2* 15 (78-87-5) 1,3-dichloropropylene

2*16 (542-75-6)

Ethylbenzene*

2*17 (100-41-4)

Methyl bromide*

2* 18 (7 4-83-9)

Methyl chloride

2* 19 (7 4-87-3)

Methylene chloride

2*20 (75-09-2) 1, 1,2,2-tetrachloroethane

2*21 (79-34-5)

EPA Form 3510-2C (Revised 3-19)

Testing Presence or Absence (check one)

Required Believed Believed Absent Present 121 121 121 121 121 121 121 121 121 121 121 121 121 Units (specify)

Concentration Mass Concentration Mass Concentration Mass Concentration Mass Concentration Mass Concentration Mass Concentration Mass Concentration Mass Concentration Mass Concentration Mass Concentration Mass Concentration Mass Concentration Mass ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L Maximum Daily Discharge (required)

<1.67

<0.333

<0.337

<0.333

<l.67

<0.333 Outfall Number OSN 113 Effluent Maximum Monthly Discharge (if available)

Long-Term Average Daily Discharge (if available)

<1.67

<0.333

<0.337

<0.333

<1.67

<0.333 Number of Analyses 4

4 4

Form Approved 03/05/19 0MB No. 2040-0004 Intake (optional)

Long-Term Average Value

<1.67

<0.333

<0.337

<0.333

<1.67

<0.333 Number of Analyses 4

4 4

Page 13

Denotes four grab samples were analyzed individually instead of compositing in the laboratory prior to analyses, all results were non-detect and TV A does not believe the analysis method affected the results.

EPA Identification Number NPDES Permit Number Facility Name Outfall Number Form Approved 03/05/19 TN2640030035 TN0020168 TVA Watts Bar Nuclear Plant OSN 113 0MB No. 2040-0004

. 1:11 :****-1l l.. l'Jl;;;a..,1... ~

... -.,,,,,-[I ;,1..,,.:.1: 1: ~l**---*,1.,, ***

11,**,u 1 1 -

r * ***a.l~ll llllf,1.., *..__.._r'.ir1 ai1::::1 Presence or Absence Intake

/check onel Effluent (optional)

Pollutant/Parameter Testing Units Maximum Maximum Long-Term Long-(and CAS Number, if available)

Required Believed Believed (specify)

Average Number Number Present Absent Daily Monthly Daily of Term of Discharge Discharge Discharge Analyses Average Analyses (required)

(if available)

Value 2.22 T etrachloroethylene

IZl Concentration ug/L

<0.333

<0.333 4

(127-18-4)

Mass Toluene

IZl Concentration ug/L

<0.333

<0.333 4

2.23 (108-88-3)

Mass 1,2-trans-dichloroethylene

Concentration ug/L

<0.333

<0.333 4

2.24 IZl (156-60-5)

Mass 2.25 1, 1, 1-trichloroethane

IZl Concentration ug/L

<0.333

<0.333 4

(71 6)

Mass 2.26 1, 1,2-trichloroethane

IZl Concentration ug/L

<0.333

<0.333 4

(79-00-5)

Mass Trichloroethylene*

0 Concentration ug/L

<0.333

<0.333 4

2.27 (79-01-6)

Mass 2.28 Vinyl chloride

IZl Concentration ug/L

<0.333

<0.333 4

(75-01-4)

Mass Section 3. Organic Toxic Pollutants (GC/MS Fraction-Acid Compounds) 3.1 2-chlorophenol IZl Concentration ug/L

<2.89 1

<2.81 1

(95-57-8)

Mass 3.2 2,4-dichlorophenol IZl Concentration ug/L

<2.89 1

<2.81 1

(120-83-2)

Mass 3.3 2,4-dimethylphenol IZl Concentration ug/L

<2.89 1

<2.81 1

(105-67-9)

Mass 4,6-d in itro-o-cresol IZl Concentration ug/L

<2.89 1

<2.81 1

3.4 (534-52-1)

Mass 3.5 2,4-dinitrophenol IZl Concentration ug/L

<4.81 1

<4.68 1

(51-28-5)

Mass

Denotes four grab samples were analyzed individually instead of compositing in the laboratory prior to analyses, all results were non-detect and TV A does not believe the analysis method affected the results.

EPA Form 3510-2C (Revised 3-19)

Page 14

EPA Identification Number NPDES Perm~ Number Facility Name Outfall Number Form Approved 03/05/19 TN2640030035 TN0020168 TVA Watts Bar Nuclear Plant OSN 113 0MB No. 2040-0004

. m,,., 11(;1 ;...,,.:1:1:,,,.,.... --.,~,1**1;u-r* 1~11im:1'111 n*,1.,.......... 1t 11: ~

Presence or Absence Intake (check onel Effluent (optional)

Pollutant/Parameter Testing Units Maximum Maximum Long-Term Long-(and CAS Number, if available)

Required Believed Believed (specify)

Average Number Number Present Absent Daily Monthly Daily of Term of Discharge Discharge Discharge Analyses Average Analyses (required)

(if available)

Value 3.6 2-nitrophenol IZ]

Concentration ug/L

<2.89 1

<2.81 1

(88-75-5)

Mass 3.7 4-nitrophenol IZ]

Concentration ug/L

<2.89 1

<2.81 1

(100-02-7)

Mass p-chloro-m-cresol IZ]

Concentration ug/L

<2.89 1

<2.81 1

3.8 (59-50-7)

Mass 3.9 Pentachlorophenol IZ]

Concentration ug/L

<2.89 1

<2.81 1

(87-86-5)

Mass 3.10 Phenol IZ]

Concentration ug/L

<2.89 1

<2.81 1

(108-95-2)

Mass 3.11 2,4,6-trichlorophenol IZ]

Concentration ug/L

<2.89 1

<2.81 1

(88-05-2)

Mass Section 4. Organic Toxic Pollutants (GC/MS Fraction-Base /Neutral Compounds) 4.1 Acenaphthene IZ]

Concentration (83-32-9)

Mass 4.2 Acenaphthylene IZ]

Concentration (208-96-8)

Mass 4.3 Anthracene IZ]

Concentration (120-12-7)

Mass 4.4 Benzidine IZ]

Concentration (92-87-5)

Mass Benzo (a) anthracene IZ]

Concentration 4.5 (56-55-3)

Mass 4.6 Benzo (a) pyrene IZ]

Concentration (50-32-8)

Mass EPA Form 3510-2C (Revised 3-19)

Page 15

EPA Identification Number NPDES Permit Number Facility Name Outfall Number Form Approved 03/05/19 TN2640030035 TN0020168 TVA Watts Bar Nuclear Plant OSN 113 0MB No. 2040-0004

. 1::11......,.. 1111;;111,,,......_..,.,,u g 111.... *:.1:".,,,1..._.._,1,111 l~ltf*B...,... :.1'111 *-**1~1i11L..,.h.~:l Presence or Absence Intake (check one)

Effluent (optional)

Pollutant/Parameter Testing Units Maximum Maximum Long-Term Long-(and CAS Number, if available)

Required Believed Believed (specify)

Average Number Number Present Absent Daily Monthly Daily of Term of Discharge Discharge Discharge Analyses Average Analyses (required)

(if available)

Value 4.7 3,4-benzofluoranthene IZl Concentration (205-99-2)

Mass 4.8 Benzo (ghi) perylene IZl Concentration (191-24-2)

Mass 4.9 Benzo (k) fluoranthene IZl Concentration (207-08-9)

Mass 4.10 Bis (2-chloroethoxy) methane IZl Concentration (111 1)

Mass 4.11 Bis (2-chloroethyl) ether IZl Concentration (111-44-4)

Mass 4.12 Bis (2-chloroisopropyl) ether IZl Concentration (102-80-1)

Mass 4.13 Bis (2-ethylhexyl) phthalate IZl Concentration (117-81-7)

Mass 4.14 4-bromophenyl phenyl ether IZl Concentration (101-55-3)

Mass 4.15 Butyl benzyl phthalate IZl Concentration (85-68-7)

Mass 4.16 2-chloronaphthalene IZl Concentration (91-58-7)

Mass 4.17 4-chlorophenyl phenyl ether IZl Concentration (7005-72-3)

Mass 4.18 Chrysene IZl Concentration (218-01-9)

Mass 4.19 Dibenzo (a,h} anthracene IZl Concentration (53-70-3)

Mass EPA Form 3510-2C (Revised 3-19)

Page 16

EPA Identification Number NPDES Permit Number Facility Name Outfall Number Form Approved 03/05/19 TN2640030035 TN0020168 TVA Watts Bar Nuclear Plant OSN 113 0MB No. 2040-0004

. 1:1=-**

- ,u 11e11,...,.,,.:.1:1: ~111-...---*~~IH*1~.{ff_*,.,,,_.... -~.

1***1\\,, *.._~,,u *::::1 "'*'-"......,.,.

Presence or Absence Intake (check one)

Effluent (optional)

Pollutant/Parameter Testing Units Maximum Maximum Long-Term Long-(and CAS Number, if available)

Required Believed Believed (specify)

Daily Monthly Average Number Term Number Present Absent Daily of of Discharge Discharge Discharge Analyses Average Analyses (required)

(if available)

{if available)

Value 1,2-dichlorobenzene IZl Concentration 4.20 (95-50-1)

Mass 1,3-dichlorobenzene IZl Concentration 4.21 (541-73-1)

Mass 1,4-dichlorobenzene IZl Concentration 4.22 (106-46-7)

Mass 3,3-dichlorobenzidine IZl Concentration 4.23 (91-94-1)

Mass Diethyl phthalate 0

Concentration 4.24 (84-66-2)

Mass Dimethyl phthalate 0

Concentration 4.25 (131-11-3)

Mass Di-n-butyl phthalate 0

Concentration 4.26 (84-74-2)

Mass 2,4-dinitrotoluene 0

Concentration 4.27 (121-14-2)

Mass 2,6-dinitrotoluene IZl Concentration 4.28 (606-20-2)

Mass Di-n-octyl phthalate IZl Concentration 4.29 (117-84-0)

Mass 1,2-Diphenylhydrazine 0

Concentration 4.30 (as azobenzene) (122-66-7)

Mass Fluoranthene IZl Concentration 4.31 (206-44-0)

Mass Fluorene IZl Concentration 4.32 (86-73-7)

Mass EPA Form 3510-2C (Revised 3-19)

Page 17

EPA Identification Number NPDES Permit Number Facility Name Outfall Number Form Approved 03/05/19 TN2640030035 TN0020168 TVA Watts Bar Nuclear Plant OSN 113 0MB No. 2040-0004

,..,_,,11,,_i,_._,...............,~ :,JJ l)lf***::.1:1: *" 1)-....._,~~II** 'lH*..... -, ** u*:111 **

111

iu -i:1

Presence or Absence Intake (check one)

Effluent (optional)

Pollutant/Parameter Testing Units Maximum Maximum Long-Term Long-(and CAS Number, if available)

Required Believed Believed (specify)

Average Number Number Present Absent Daily Monthly Daily of Term of Discharge Discharge Discharge Analyses Average Analyses (required)

(if available)

Value 4.33 Hexachlorobenzene IZ]

Concentration (118-74-1)

Mass 4.34 Hexachlorobutadiene IZ]

Concentration (87-68-3)

Mass 4.35 Hexachlorocyclopentadiene IZ]

Concentration (77-47-4)

Mass 4.36 Hexachloroethane IZ]

Concentration (67-72-1)

Mass 4.37 lndeno (1,2,3-cd) pyrene IZ]

Concentration (193-39-5)

Mass 4.38 lsophorone IZ]

Concentration (78-59-1)

Mass 4.39 Naphthalene IZ]

Concentration (91-20-3)

Mass Nitrobenzene IZ]

Concentration 4.40 (98-95-3)

Mass 4.41 N-nitrosodimethylamine IZ]

Concentration (62-75-9)

Mass 4.42 N-nitrosodi-n-propylamine IZ]

Concentration (621-64-7)

Mass 4.43 N-nitrosodiphenylamine IZ]

Concentration (86-30-6)

Mass Phenanthrene IZ]

Concentration 4.44 (85-01-8)

Mass Pyrene IZ]

Concentration 4.45 (129-00-0)

Mass EPA Form 3510-2C (Revised 3-1 9)

Page 18

EPA Identification Number NPDES Permtt Number Facility Name Outfall Number Form Approved 03/05/19 TN264OO3OO35 TNOO2O168 TVA Watts Bar Nuclear Plant OSN 113 0MB No. 2040-0004 n:t,_,,,,:::111,,,.......,.,,~ 11::a 111**1~=1: Nll_,_,,,,1, ** 1~,H*i.*111l *01-!J l 1 *!wllL"'ll'Ml 11'1:I Presence or Absence Intake (check one)

Effluent (optional)

Pollutant/Parameter Testing Units

Maximum Maximum Long-Term Long-(and CAS Number, if available)

Required Believed Believed (specify)

Daily Monthly Average Number Term Number Present Absent Daily of of Discharge Discharge Discharge Analyses Average Analyses (required)

(if available)

Value 4.46 1,2,4-trichlorobenzene 0

Concentration (120-82-1)

Mass Section 5. Organic Toxic Pollutants (GC/MS Fraction-Pesticides)

Aldrin 0

Concentration 5.1 (309-00-2)

Mass a-BHC 0

Concentration 5.2 (319-84-6)

Mass

~-BHC 0

Concentration 5.3 (319-85-7)

Mass y-BHC 0

Concentration 5.4 (58-89-9)

Mass o-BHC 0

Concentration 5.5 (319-86-8)

Mass Chlordane 0

Concentration 5.6 (57-74-9)

Mass 4,4'-DDT 0

Concentration 5.7 (50-29-3)

Mass 5.8 4,4'-DDE 0

Concentration (72-55-9)

Mass 4,4'-DDD 0

Concentration 5.9 (72-54-8)

Mass Dieldrin 0

Concentration 5.1 0 (60-57-1)

Mass a-endosulfan 0

Concentration 5.11 (115-29-7)

Mass EPA Form 3510-2C (Revised 3-1 9)

Page 19

EPA Identification Number NPDES Permit Number Facility Name Outfall Number Form Approved 03/05/19 TN2640030035 TN0020168 TVA Watts Bar Nuclear Plant OSN 113 0MB No. 2040-0004

, 1:1 ;;a :1n:t1* 1*11 :111,,,..._..__.***.,,,,,.

1*H*1 ~=1: Nll'""-*HIHll~ltf 1.111- ***n,.. r*

lill.,-,l-' &.......-1;(1*.. *...,., _

If** ***

Presence or Absence Intake (check one)

Effluent (optional)

Pollutant/Parameter Testing Units Maximum Maximum Long-Term Long-(and CAS Number, if available)

Required Believed Believed (specify)

Average Number Number Present Absent Daily Monthly Daily of Term of Discharge Discharge Discharge Analyses Average Analyses (required)

(if available)

Value 5.12

~-endosulfan 0

Concentration (115-29-7)

Mass 5.13 Endosulfan sulfate 0

Concentration (1031-07-8)

Mass 5.14 Endrin 0

Concentration (72-20-8)

Mass 5.15 Endrin aldehyde 0

Concentration (7421-93-4)

Mass 5.16 Heptachlor 0

Concentration (76-44-8)

Mass 5.17 Heptachlor epoxide 0

Concentration (1024-57-3)

Mass PCB-1242 Concentration 5.18 (53469-21-9) 0 Mass PCB-1254 Concentration 5.19 (11097-69-1) 0 Mass PCB-1221 0

Concentration 5.20 ( 11104-28-2)

Mass PCB-1232 0

Concentration 5.21

( 11141-16-5)

Mass PCB-1248 0

Concentration 5.22 ( 12672-29-6)

Mass PCB-1260 0

Concentration 5.23 (11096-82-5)

Mass PCB-1016 0

Concentration 5.24 (12674-11-2)

Mass EPA Form 3510-2C (Revised 3-19)

Page 20

EPA Identification Number Pollutant/Parameter (and CAS Number, if available)

NPDES Permit Number Facility Name TVA Watts Bar Nuclear Plant check one Testing Required Believed Present Believed Absent 0

Units (specify)

Concentration Mass Maximum Daily Discharge (required)

Outfall Number Effluent Maximum Long-Term Monthly Average Daily Discharge Discharge (if available) if available Number of Analyses Form Approved 03/05/19 0MB No. 2040-0004 (optional)

Long-Term Number of Average Analyses Value 1 Sampling shall be conducted according to sufficiently sensitive test procedures (i.e., methods) approved under 40 CFR 136 for the analysis of pollutants or pollutant parameters or required under 40 CFR chapter I, subchapter Nor 0. See instructions and 40 CFR 122.21 (e)(3).

EPA Form 3510-2C (Revised 3-19)

Page 21

This page intentionally left blank.

EPA Identification Number NPDES Permit Number Facility Name Outfall Number Form Approved 03/05/19 TN2640030035 TN0020168 TVA Watts Bar Nuclear Plant OSN 113 0MB No. 2040-0004

.,.., *** ~l'l::l~ -1,,~,-*1,111,'ll*E -*J*1f*_,_

[ll.. l1~, *

r~*I 11111"M..lirrm Presence or Absence Intake (check one)

Effluent (Optional)

Pollutant Units Maximum Long-Term Believed Believed (specify)

Maximum Daily Monthly Average Daily Number of Long-Term Number of Present Absent Discharge Discharge Discharge Analyses Average Analyses (required)

(if available)

{if available)

Value Check here if you believe all pollutants on Table C to be present in your discharge from the noted outfall. You need not complete the "Presence or Absence" column of Table C for each pollutant.

Check here if you believe all pollutants on Table C to be absent in your discharge from the noted outfall. You need not complete the "Presence or Absence" column of Table C for each pollutant.

Bromide

[Z]

Concentration mg/L

<0.0670 1

1.

(24959-67-9)

Mass Chlorine, total

[Z]

Concentration mg/L

<0.05

<0.05 134

<0.05 4

2.

residual Mass

[Z]

Concentration PCU 15.0 1

15.0 1

3.

Color Mass

4.

Fecal coliform

[Z]

Concentration Mass Fluoride

[Z]

Concentration mg/L 0.107 1

0.0861 1

5.

(16984-48-8)

Mass

[Z]

Concentration mg/L 0.572 1

0.380 1

6 Nitrate-nitrite Mass Nitrogen, total

[Z]

Concentration ug/L 116 1

168 1

7.

organic (as N)

Mass

[Z]

Concentration mg/L

<11.1

<5.4 32

<1.65 1

8.

Oil and grease Mass Phosphorus (as

[Z]

Concentration mg/L 0.0525 1

<0.0200 1

9.

P), total (7723-14-0)

Mass Sulfate (as SO4)

[Z]

Concentration mg/L 14.0 1

10.0 1

10. (14808-79-8)

Mass

[Z]

Concentration mg/L

<0.0330 1

11. Sulfide (as S)

Mass EPA Form 3510-2C (Revised 3-19)

Page 23

EPA Identification Number NPDES Permit Number Facility Nam, ~

TN2640030035 TN0020168 TVA Watts Bar Nuclear Plant OSN 113 0MB No. 2040-0004

.11 *.*,.,...... 1,,uJ-1.,-~r*,,.,

,u I.-*u1i.,**,1rn ;;i,, ~11i.*r*,.11**1.1

rr*!-

Presence or Absence Intake

/check one\\

Effluent (Optional)

Pollutant Units Maximum Long-Term Believed Believed (specify)

Maximum Daily Long-Term Present Absent Discharge Monthly Average Daily Number of Average Number of Discharge Discharge Analyses Analyses (required)

/if available\\

(if available)

Value

12. Sulfite (as SQ3)

IZ]

Concentration mg/L 1.28 0.96 4

0.96 4

(14265-45-3)

Mass

13. Surfactants IZ]

Concentration mg/L

<0.1700 1

0.0198 1

Mass

14. Aluminum, total IZ]

Concentration ug/L 75.8 1

71.3 1

(7 429-90-5)

Mass

15. Barium, total IZ]

Concentration ug/L 30.1 1

21.1 1

(7 440-39-3)

Mass

16.

Boron, total IZ]

Concentration ug/L 16.8 1

11.9 1

(7440-42-8)

Mass

17. Cobalt, total IZ]

Concentration ug/L

<0.300 1

(7 440-48-4)

Mass

18. Iron, total IZ]

Concentration ug/L 132 1

105 1

(7 439-89-6)

Mass

19. Magnesium, total IZ]

Concentration ug/L 6950 1

5010 1

(7 439-95-4)

Mass Molybdenum, IZ]

Concentration ug/L 0.317 1

0.242 1

20. total (7439-98-7)

Mass

21. Manganese, total IZ]

Concentration ug/L 34.4 1

24.0 1

(7439-96-5)

Mass

22. Tin, total IZ]

Concentration ug/L

<1.00 1

(7 440-31-5)

Mass

23. Titanium, total IZ]

Concentration ug/L

<2.00 1

(7 440-32-6)

Mass EPA Form 3510-2C (Revised 3-19)

Page 24

EPA Identification Number NPDES Permit Number Facility Name check one Pollutant Believed Believed Units (specify)

Maximum Daily Present Absent Discharge (required)

24. Radioactivity Alpha, total

[Z]

Concentration pCi/L

<2.35 Mass Beta, total

[Z]

Concentration pCi/L 1.26 Mass Radium, total

[Z]

Concentration pCi/L 0.638 Mass Radium 226, total

[Z]

Concentration pCi/L 0.350 Mass Outfall Number Effluent Maximum Long-Term Monthly Average Daily Number of Discharge Discharge Analyses if available if available 1

1 1

1 Form Approved 03/05/19 0MB No. 2040-0004 (Optional)

Long-Term Number of Average Analyses Value 1.77 1

0.23 1

0.224 1

0.376 1

1 Sampling shall be conducted according to sufficiently sensitive test procedures (i.e., methods) approved under 40 CFR 136 for the analysis of pollutants or pollutant parameters or required under 40 CFR chapter I, subchapter Nor 0. See instructions and 40 CFR 122.21 (e)(3).

EPA Form 3510-2C (Revised 3-19)

Page 25

This page intentionally left blank.

EPA Identification Number NPDES Permit Number Fac;I TN2640030035 TN0020168 TVA Watts Bar Nuclear Plant OSN 113 OMB No. 2040-0004

,................,............. m

,....... ID*1,,11W*~"i :!-***-* *!l N~:.tllr- *-*

Presence or Absence Pollutant (check one)

Reason Pollutant Believed Present in Discharge Available Quantitative Data Believed Believed (specify units)

Present Absent

1. Asbestos 0

2. Acetaldehyde 0

3.

Allyl alcohol 0

4.

Allyl chloride 0

5.

Amyl acetate 0

6.

Aniline 0

7.

Benzonitrile 0

8.

Benzyl chloride 0

9.

Butyl acetate 0

10. Butylamine 0

11. Captan 0

12.

Carbary!

0

13. Carbofuran 0

14. Carbon disulfide 0

15. Chlorpyrifos 0

16. Coumaphos 0

17. Cresol 0

18. Crotonaldehyde 0

19. Cyclohexane 0

EPA Form 3510-2C (Revised 3-19)

Page 27

EPA Identification Number NPDES Pemiit Number FacililyN*~ ~

TN2640030035 TN0020168 TVA Watts Bar Nuclear Plant OSN 113 OMB No. 2D40-0004 1*~*-**"*'"*'""""'"'"'-'"",..

i11~1***1r.."1 :1;;;i........ llJrr.--... ~!I**""

IU Presence or Absence Pollutant (check one)

Reason Pollutant Believed Present in Discharge Available Quantitative Data Believed Believed (specify units)

Present Absent

20. 2,4-D (2,4-dichlorophenoxyacetic acid) 0

21. Diazinon 0

22. Dicamba 0

23. Dichlobenil 0

24. Dichlone 0

25.

2,2-dichloropropionic acid 0

26. Dichlorvos 0

27. Diethyl amine 0

28. Dimethyl amine 0

29.

Dintrobenzene 0

30. Diquat 0

31. Disulfoton 0

32.

Diuron 0

33.

Epichlorohydrin 0

34.

Ethion 0

35. Ethylene diamine 0

36. Ethylene dibromide 0

37. Formaldehyde 0

38.

Furfural 0

EPA Form 3510-2C (Revised 3-19)

Page 28

EPA Identification Number NPDES Permit Number FocaityNa~ ~

TN2640030035 TN0020168 TVA Watts Bar Nuclear Plant OSN 113 OMB No. 2040-0004

,~*-**""*'""'""""'".. 11,,,, *..

'""'....,11.,~1.-,1,,..~ ;1;;;;;a,,,,.................... ~U*--:l:'.11111'.Jl'J,.....

11.'U Presence or Absence Pollutant (check one)

Reason Pollutant Believed Present in Discharge Available Quantitative Data Believed Believed (specify units)

Present Absent

39. Guthion

[Z]

40.

lsoprene

[Z]

41.

lsopropanolamine

[Z]

42. Kelthane

[Z]

43.

Kepone

[Z]

44. Malathion

[Z]

45.

Mercaptodimethur

[Z]

46. Methoxychlor

[Z]

47.

Methyl mercaptan

[Z]

48. Methyl methacrylate

[Z]

49. Methyl parathion

[Z]

50.

Mevinphos

[Z]

51.

Mexacarbate

[Z]

52.

Monoethyl amine

[Z]

53. Monomethyl amine

[Z]

54. Naled

[Z]

55. Naphthenic acid

[Z]

56. Nitrotoluene

[Z]

57. Parathion

[Z]

EPA Form 3510-2C (Revised 3-19)

Page 29

EPA Identification Number NPDES Permit Number FaciUyNa~ ~

TN2640030035 TN0020168 TVA Watts Bar Nuclear Plant OSN 113 OMB No. 2040-0004 II **::, ~.1**11., ~,,.,.,,eJIJlll......,., :+.........,

,,.,, **,'-.."'i : 1::L.., l\\...""II j 1**:1 Ill 1**1* *

Presence or Absence Pollutant (check one)

Reason Pollutant Believed Present in Discharge Available Quantitative Data Believed Believed (specify units)

Present Absent

58. Phenolsulfonate 0

59. Phosgene 0

60. Propargite 0

61.

Propylene oxide 0

62.

Pyrethrins 0

63. Quinoline 0

64. Resorcinol 0

65. Strontium 0

66. Strychnine 0

67. Styrene 0

68. 2,4,5-T (2,4,5-trichlorophenoxyacetic 0

acid)

69. TOE (tetrachlorodiphenyl ethane) 0

70.

2,4,5-TP [2-(2,4,5-trichlorophenoxy) 0 propanoic acidl 71. T richlorofon 0

72.

Triethanolamine 0

73. Triethylamine 0

74.

Trimethylamine 0

75. Uranium 0

76.

Vanadium 0

EPA Form 3510-2C (Revised 3-19)

Page 30

EPA Identification Number NPDES Permit Number Pollutant check one Believed Present

77.

Vinyl acetate

78. Xylene

79. Xylenol

80. Zirconium Facility Name Outfall Number TVA Watts Bar Nuclear Plant Believed Reason Pollutant Believed Present in Discharge Absent IZl IZl IZl IZl Form Approved 03/05/19 0MB No. 2040-0004 Available Quantitative Data (specify units) 1 Sampling shall be conducted according to sufficiently sensitive test procedures (i.e., methods) approved under 40 CFR 136 for the analysis of pollutants or pollutant parameters or required under 40 CFR chapter I, subchapter Nor 0. See instructions and 40 CFR 122.21 (e)(3).

EPA Form 3510-2C (Revised 3-19)

Page 31

This page intentionally left blank.

EPA Identification Number Pollutant 2,3,7,8-TCDD EPA Form 3510-2C (Revised 3-19)

NPDES Permit Number Facility Name Congeners Used or Manufactured TVA Watts Bar Nuclear Plant check one Believed Believed Present Absent 0

Outfall Number Results of Screening Procedure Form Approved 03/05/19 0MB No. 2040-0004 Page 33

1 2

3 4

m A

B C

WATTS BAR NUCLEAR PLANT WATERSHED MAP Legend P,

NPOESSlGN CJ OESIGNATEO WETLAND

@ CATCH BASIN 0

STORM WATER OUTFALL* WBN 0

STORMWATEROUTFALL*WBF STORMWATER MONITORING POINT NPDES OUTFALL

-* STORM WATER DITCH STORM WATER DRAINAGE PIPE

-* ORAINWAYM'ATER

-t,. GENERAL YARD FLOW 8

PlANT BOUNDARY DRAINAGE BOUNDARY

===='"'

1,700

..... 00-....,_, _,,

ro,..,_ou,,.._..,u......,..,,ra.,....,.,..,_.

10 11

Abbreviations E

21.82 U1 CT "A" -Alternate Flow Path 568.58 CCW - Condenser Cooling Water 590.4 CRHP - Construction Runoff Holding Pond U1 Main 419.686 U1 CT CT - Cooling Tower Condenser Slowdown ERCW - Emergency Raw Cooling Water 201.89 OSN 113 HPFP - High Pressure Fire Protection co

<'l V,

V, m

a.

<D

~1_7_4_.0_1_9 __ Watts Bar Reservoir (Tennessee River)

RCW - Raw Cooling Water RSW - Raw Service Water SCCW - Supplemental CCW SGBD - Steam Generator Blow Down TC - Training Center WTP - Water Treatment Plant Chickamauga Reservoir (Tennessee River) 75.024 (Note 3)

E 21.82 U2 CT U2 Main Condenser 74.551 Once Through Cooling Water ERCW Discharge (5.31) (Note 4)

RCW Discharge (4.91) (Note 4)

Ice Condenser Chiller Packages &

Various Air Coolers (0.400) (Note 4)

Intake Pumping Station {I PS)

I RWCA 1----------* HPFP

'---'-=="'-_,*****9 Process Water via IPS ERCW Header Flushes (During Outages)

Trash Sluice Water via IPS ERCW Traveling Screen Back Wash 0.0078 ERCW Strainers Back Wash 0.108 ERCW Strainers Leakage n Station Drainage Sumps 0.072 0.285 VWTPSump 0.025 U2CT Slowdown 45.773 10.62

- - ~

Alum Pond

["A" 0,

0 0

0 E

p s:

u u CJ) 0 0

ci 174 "A"

"A" Training Center 0.001 Cooling Tower Slowdown CT Desilting Basin 0.1878 0.002 Vendor WTP 0.26 Waste

~--------------------.t Holding Pond IMP 103 0.347 Liquid Radwaste System 0.004 Primary Laboratory Waste (0.0001 )

Radioactive Floor & Equipment Drains, Tanks, and Sumps (0.0039) 0.36 SGBD Secondary System Make-Up Water WI/TP "A"

0.001 "A"

'------1 Condensate demin cleanup ~---------1~

HPFP System Laboratory Waste Neutral Waste Tank MWS Potable Water Line Leaks System Leakage & Maintenance Once Through Cooling Water (ERCW & RCW System) Main Feedwater & Condensate Systems RSWSystem 0.001 0.0002 n

0.0002 0.1993 0

0 "!

0 Turbine Building Station Sump Metal-cleaning Wastewaters (only when aligned to LP/ULP)

"A"

"A" (non metal-cleaning only)

....------=----,

Drum Rinsing & Dewatering Diesel Cleaning Coolant Non-Rad Demin Water(0.011)

Service Building Sump (0.020)

Diesel Gen (D/G) Building Sump (0.0001)

Emergency DIG Building Sump (0.0001)

CCW Pump Station Sump (0.0001)

NaOCI Building Sump & Dike (0.001)

HPFP System Flushes (0.003)

Potable Water Line Leaks (0.001)

Storm Water Runoff (0.699)

Chemical Storage Rainwater Release (0.001)

Groundwater Sump (0.001)

Condenser tube/ CT cleaning Worker decon

- ** ***** Asbestos Micro.....

Filtrate 0.105 0.057 0.7373 n

SCCWScreen Backwash 0.019

- - ***** * ** OSN 114 Diffuser Discharge "O

C 0

D...

~

ro 57.31 OSN 101 n

YHP Overflow Weirs Discharge

***** OSN 102

- ********* Intermittent Flow

- * -3> Raw Water Chemical Additive t><(J Normally open valve

~

Normally closed valve Notes:

1. All flows in MGD.

2. Both units are operating in normal power generation mode.

3. Raw water additives will be used in the Intake Pumping Station and the Cooling Tower Basins.

4. For dual unit operation, two essential raw cooling water (ERCW) pumps and six raw cooling water (RCW) pumps are operating with a total maximum flow rate of 75.042 MGD.

5. The flows through Ice Condenser chiller packages and various air coolers are doubled from Unit 1 Only Operation. The ERCW, and RCW discharge rates were rationed up by 21 % to balance the flow diagram.

TVA Watts Bar Nuclear Plant NPDES Permit No:TN0020168 Flow Schematic June 2021

TENNESSEE VALLEY AUTHORITY (TVA) -WATTS BAR NUCLEAR PLANT (WBN)

NPDES PERMIT NO. TN0020168 - APPLICATION FOR PERMIT RENEWAL Current Whole Effluent (WET) Toxicity Limits (permit effective February 1, 2017):

Outfall 101 -

Outfall 113 -

7-day or 3-brood IC2s 2:: 2.8% effluent (35.7 TUc)

Monitoring Frequency = 2/year 7-day or 3-brood IC2s 2:: 6.7% effluent (14.9 TUc)

Monitoring Frequency= 2/year Proposed Whole Effluent (WET) Toxicity Requirements:

Outfall 101 -

Outfall 113 -

Outfalls 101 and 113:

7-day or 3-brood IC2s 2:: 2.8% effluent (35.7 TUc)

Monitoring Frequency= 2/year, one during oxidizing biocide treatment and one during non-oxidizing biocide treatment 7-day or 3-brood IC2s 2:: 8.93% effluent (11.2 TUc)

Monitoring Frequency= 2/year, one during oxidizing biocide treatment and one during non-oxidizing biocide treatment In accordance with EPA's recommendation (Technical Support Document for Water Quality-based Toxics Control, EPA/505/2-90-001 ), and incorporating current flow rates associated with the operation of Unit 1 and Unit 2, WBN Outfall OSN101 and Outfall OSN113 would not be required to have chronic WET limits based on a demonstration of no Reasonable Potential (RP) for excursions above the ambient water quality chronic (CCC) criterion using effluent data for current operating conditions.

Following guidance in the Technical Support Document (TSO), when no RP exists, biomonitoring would be conducted at a frequency of only once every 5 years as part of the permit renewal process to document acceptable effluent toxicity and toxicity at the instream wastewater concentration (IWC), and would serve only as a hard trigger for accelerated toxicity biomonitoring.

However, raw water used at the facility is treated with corrosion inhibitors and biocide products. These products, which can become concentrated in the cooling tower system, are discharged through Outfalls 101 and 113. The chemical makeup of the products used can change during the permit period and the combined toxicity effect of the chemicals is not known. Thus it is not feasible to control toxicity only by the application of chemical specific effluent limits to the discharge. Toxicity testing is a reasonable method to evaluate the toxicity impacts of the products in the effluent. Therefore, TVA believes it is appropriate to incorporate the proposed WET requirements stated above for WBN Outfalls OSN101

and OSN113 that are specified in the current Biocide Corrosion Treatment Plan (BCTP), with one test per outfall during oxidizing biocide treatment and one test per outfall during non-oxidizing biocide treatment. TVA is requesting permit language consistent with the BCTP.

The following RP determination utilizes 10 years (20 studies) of WET biomonitoring data collected for Outfalls 101 and 113. Table 1 summarizes Outfall 101 biomonitoring results while Table 2 summarizes Outfall 113 biomonitoring results.

Table 1. Summary of WBN Outfall OSN101 WET Biomonitoring Results:

Acute Results Chronic Results

{96-h Survival)

Test Date Test Species

% Survival in Study Study Highest Concentration Toxicity IC2s Toxicity Tested Units (TUa)

Units (TUc)

Htf'.!Othesis Based NOEC:

1. Feb. 2-9, 1994 Ceriodaphnia dubia 100%

10.2t

<1.0 Pimepha/es prome/as 100%

(IC2s:<1.0)

2. Aug. 26 - Sep. 22, 1994 Ceriodaphnia dubia 100%

Pimepha/es prome/as 100%

<1.0

3. Feb. 1-8, 1995 Ceriodaphnia dubia 100%

>100%

Pimepha/es prome/as 98%

<1.0

>100%

<1.0

4. Aug. 9-16, 1995 Ceriodaphnia dubia 100%

>100%

Pimephales promelas 100%

<1.0

>100%

<1.0

5. Feb. 23 - Mar. 1, 1996 Ceriodaphnia dubia 100%

Pimepha/es promelas 98%

<1.0

6. Aug. 22-29, 1996 Ceriodaphnia dubia 89%

>100%

Pimepha/es prome/as 100%

<1.0

>100%

<1.0

7. Feb. 19-26, 1997 Ceriodaphnia dubia 80%

58.0%

Pimephales promelas 100%

<1.0

>100%

1.7

8. Aug. 12-20, 1997 Ceriodaphnia dubia 0%

30.9%

Pimephales promelas 100%

3.1

>100%

3.2

9. Feb. 24 - Mar. 3, 1998 Ceriodaphnia dubia 100%

>100%

Pimephales promelas 100%

<1.0

>100%

<1.0

10. Sep. 16, 1998 Ceriodaphnia dubia 0%

32.4%

Pimepha/es promelas 98%

3.2

>100%

3.1

11. Mar. 2-9, 1999 Ceriodaphnia dubia 100%

>100%

Pimephales promelas 90%

<1.0 40%

2.5

12. Sep. 9 - Oct. 6, 1999 Ceriodaphnia dubia 100%

>13.2%

Pimephales promelas 100%

<7.58

>13.2%

<7.58

13. Apr. 4-11, 2000 Ceriodaphnia dubia 100%

>13.2%

Mar. 22-29, 2000 Pimepha/es prome/as 98%

<7.58

>13.2%

<7.58

14. Oct. 25 - Nov. 1, 2000 Ceriodaphnia dubia 100%

>13.2%

<7.58

<7.58 Pimepha/es prome/as 100%

>13.2%

Summary of WBN Outfall OSN101 WET Biomonitoring Results (continued):

Acute Results {96-h Survival}

Chronic Results

% Survival in Study Study Test Date Test Species Highest Toxicity IC2s Toxicity Concentration Units (TUa)

Units (TUc)

Tested

15. Apr. 18-25, 2001 Ceriodaphnia dubia 89%

<7.58

>13.2%

<7.58 Apr. 17-24, 2001 Pimephales promelas 95%

>13.2%

16. Oct. 15-22, 2001 Ceriodaphnia dubia 100%

<7.58

>13.2%

<7.58 Pimepha/es prome/as 100%

>13.2%

17. Apr. 14-19, 2002 Ceriodaphnia dubia 100%

<7.58

>13.2%

<7.58 Apr. 28 - May 3, 2002 Pimephales promelas 100%

>13.2%

18 Oct. 22-29, 2002 Ceriodaphnia dubia 100%

>13.2%

Oct. 21-28, 2002 Pimephales promelas 100%

<7.58

>13.2%

<7.58

19. Apr. 14-21, 2003 Ceriodaphnia dubia 100%

>13.2%

Pimepha/es promelas 100%

<7.58

>13.2%

<7.58

20. Nov. 3-10, 2003 Ceriodaphnia dubia 90%

12.1%

Pimepha/es promelas 100%

<7.58

>13.2%

8.3

21. Apr. 20-27, 2004 Ceriodaphnia dubia 100%

>13.2%

Pimephales promelas 98%

<7.58

>13.2%

<7.58

22. Nov. 8-13, 2004 Ceriodaphnia dubia 100%

>19.2%

Pimepha/es prome/as 100%

<5.20

>19.2%

<5.20

23. Apr. 12-19, 2005 Ceriodaphnia dubia 100%

>19.2%

Pimephales promelas 100%

<5.20

>19.2%

<5.20

24. Nov. 2-9, 2005 Ceriodaphnia dubia 100%

>19.2%

Pimephales prome/as 98%

<5.20

>19.2%

<5.20

25. Apr. 18-25, 2006 Ceriodaphnia dubia 100%

<5.20

>19.2%

<5.20 Pimepha/es prome/as 100%

>19.2%

26. Aug. 22-29, 2006 Ceriodaphnia dubia 100%

<5.20

>19.2%

<5.20 Pimepha/es promelas 100%

>19.2%

27. Apr. 3-10, 2007 Ceriodaphnia dubia 100%

<5.20

>19.2%

<5.20 Pimepha/es prome/as 100%

>19.2%

28. Oct. 16-23, 2007 Ceriodaphnia dubia 100%

<5.20

>19.2%

<5.20 Pimephales promelas 100%

>19.2%

29. May 6-13, 2008 Ceriodaphnia dubia 100%

<5.20

>19.2%

<5.20 Pimepha/es promelas 100%

>19.2%

Summary of WBN Outfall OSN101 WET Biomonitoring Results (continued):

Acute Results ~96-h Survival~

Chronic Results

% Survival in Study Study Test Date Test Species Highest Toxicity Units IC2s Toxicity Concentration (TUa)

Units (TUc)

Tested

30. Nov.4-11, 2008 Ceriodaphnia dubia 100%

>19.2%

Pimepha/es prome/as 100%

<5.20

>19.2%

<5.20 31. May 5-12, 2009 Ceriodaphnia dubia 100%

>19.2%

Pimephales promelas 100%

<5.20

>19.2%

<5.20

32. Nov. 3-10, 2009 Ceriodaphnia dubia 100%

>19.2%

Pimepha/es prome/as 100%

<5.20

>19.2%

<5.20

33. May 4-11, 2010 Ceriodaphnia dubia 100%

>19.2%

Pimephales promelas 100%

<5.20

>19.2%

<5.20

34. Sep. 28-Oct.5, 2010 Ceriodaphnia dubia 100%

<7.58

>13.2%

<7.58 Pimepha/es promelas 98%

>13.2%

35. Mar. 29-Apr. 5, 2011 Ceriodaphnia dubia 100%

<7.58

>13.2%

<7.58 Pimepha/es prome/as 100%

>13.2%

36. Oct. 4-11, 2011 Ceriodaphnia dubia 100%

<8.93

>11.2%

<8.93 Pimepha/es prome/as 100%

>11.2%

37. May 8-15, 2012 Ceriodaphnia dubia 100%

<8.93

>11.2%

<8.93 Pimephales promelas 100%

>11.2%

38. Nov. 6-13, 2012 Ceriodaphnia dubia 100%

<8.93

>11.2%

<8.93 Pimephales promelas 100%

>11.2%

39. May14-21,2013 Ceriodaphnia dubia 100%

<8.93

>11.2%

<8.93 Pimepha/es promelas 100%

>11.2%

40. Nov. 5-12, 2013 Ceriodaphnia dubia 100%

<8.93

>11.2%

<8.93 Pimepha/es prome/as 100%

>11.2%

41. May 13-20, 2014 Ceriodaphnia dubia 100%

<8.93

>11.2%

<8.93 Pimepha/es promelas 100%

>11.2%

42. Oct. 7-14, 2014 Ceriodaphnia dubia 100%

<8.93

>11.2%

<8.93 Pimepha/es prome/as 100%

>11.2%

Summary of WBN Outfall OSN101 WET Biomonitoring Results (continued):

Acute Results (96-h Survival)

Chronic Results

% Survival in Study Study Test Date Test Species Highest Toxicity Units IC2s Toxicity Concentration (TUa)

Units (TUc)

Tested

43. May 5-12, 2015 Ceriodaphnia dubia 100%

<8.93

>11.2%

<8.93 Pimephales promelas 100%

>11.2%

44. Nov. 3-10, 2015 Ceriodaphnia dubia 100%

<8.93

>11.2%

<8.93 Pimepha/es promelas 100%

>11.2%

45. May 10-17, 2016 Ceriodaphnia dubia 100%

<8.93

>11.2%

<8.93 Pimephales promelas 100%

>11.2%

46. Oct. 4-11, 2016 Ceriodaphnia dubia 100%

<8.93

>11.2%

<8.93 Pimephales promelas 100%

>11.2%

47. Jun.6-13, 2017 Ceriodaphnia dubia 100%

<8.93

>11.2%

<8.93 Pimephales promelas 100%

>11.2%

48. Oct. 3-10, 2017 Ceriodaphnia dubia 100%

<8.93

>11.2%

<8.93 Pimepha/es promelas 100%

>11.2%

49. Apr. 3-10, 2018 Ceriodaphnia dubia 100%

<8.93

>11.2%

<8.93 Pimepha/es promelas 100%

>11.2%

50. Nov. 6-13, 2018 Ceriodaphnia dubia 100%

<8.93

>11.2%

<8.93 Pimepha/es prome/as 100%

>11.2%

51. May7-14, 2019 Ceriodaphnia dubia 100%

<8.93

>11.2%

<8.93 Pimepha/es promelas 100%

>11.2%

52. Oct. 8-15, 2019 Ceriodaphnia dubia 100%

<8.93

>11.2%

<8.93 Pimephales promelas 100%

>11.2%

53. Jun. 3-10, 2020 Ceriodaphnia dubia 100%

<8.93

>11.2%

<8.93 Pimephales promelas 100%

>11.2%

54.. Oct. 6-13, 2020 Ceriodaphnia dubia 100%

<8.93

>11.2%

<8.93 Pimepha/es prome/as 100%

>11.2%

Summary of WBN Outfall OSN101 WET Biomonitoring Results (continued):

Acute Results (96-h Survival)

Chronic Results Test Date

55. May 4-11, 2021 n (total) n (last 20 studies)

Maximum Minimum Mean CV Test Species Ceriodaphnia dubia Pimepha/es prome/as

% Survival in Highest Concentration Tested 100%

100%

110 40 100%

100%

0.0 Study Toxicity Units IC2s (TUa)

<8.93

>11.2%

55 20

<8.9

<0.1 tstatistical endpoint biased by selection of the dilution series. IC2s derived from original data.

Current permit was effective February 1, 2017. Applicable permit limit: IC2s ~ 2.8%, 35. 71 TUc.

Applicable permit dilution series: Control, 0.7%, 1.4%, 2.8%, 5.6%, 11.2%.

Shaded area (10 years) depicts studies used in Reasonable Potential calculations.

Study Toxicity Units (TUc)

<8.93 55 20

<8.9

<0.1

Table 2. Summary of WBN Outfall OSN113 WET Biomonitoring Results:

Acute Results Chronic Results (96-h Survival)

Test Date Test Species

% Survival in Highest Study Toxicity Study Toxicity Concentration Units (TUa)

IC2s Units (TUc)

Tested IC2sBased

1. Oct. 19-26, 1999 Ceriodaphnia dubia 100%

>41.2%

Pimephales promelas 98%

<2.43

>41.2%

<2.43

2. Apr. 4-11, 2000 Ceriodaphnia dubia 90%

19.5%

Pimephales prome/as 100%

<2.43

>41.2%

5.0

3. Oct. 25-Nov. 1, Ceriodaphnia dubia 100%

>41.2%

2000

<2.43

<2.43 Pimepha/es promelas 98%

>41.2%

4. Apr. 18-25, 2001 Ceriodaphnia dubia 100%

>41.2%

Pimephales prome/as 100%

<2.43 25.1%

4.0

5. Oct. 15-23, 2001 Ceriodaphnia dubia 100%

>41.2%

Pimephales promelas 100%

<2.43

>41.2%

<2.43

6. Apr. 14-19, 2002 Ceriodaphnia dubia 100%

>41.2%

Apr. 28 - May 3, Pimephales promelas 93%

<2.43 20.0%

5.0 2002

7. Oct. 21-28, 2002 Ceriodaphnia dubia 100%

>41.2%

Pimephales prome/as 98%

<2.43

>41.2%

<2.43

8. Apr. 15-22, 2003 Ceriodaphnia dubia 100%

>41.2%

Pimephales promelas 93%

<2.43

>41.2%

<2.43

9. Nov. 3-10, 2003 Ceriodaphnia dubia 100%

>41.2%

Pimephales promelas 100%

<2.43

>41.2%

<2.43

10. Apr. 20-27, 2004 Ceriodaphnia dubia 100%

>41.2%

Pimepha/es prome/as 100%

<2.43

>41.2%

<2.43 11. Nov. 9-16, 2004 Ceriodaphnia dubia 100%

>30.4%

Pimepha/es promelas 100%

<3.29

>30.4%

<3.29

12. Apr. 12-19, 2005 Ceriodaphnia dubia 100%

>30.4%

Pimephales prome/as 98%

<3.29

>30.4%

<3.29

13. Nov. 2-9, 2005 Ceriodaphnia dubia 100%

>30.4%

Pimepha/es prome/as 98%

<3.29

>30.4%

<3.29

14. Apr. 18-25, 2006 Ceriodaphnia dubia 100%

<3.29

>30.4%

Pimepha/es prome/as 100%

>30.4%

<3.29

Summary of WBN Outfall OSN113 WET Biomonitoring Results (continued):

Acute Results Chronic Results (96-h Survival)

Test Date Test Species

% Survival in Highest Study Toxicity Study Toxicity Concentration Units (TUa)

IC2s Units (TUc)

Tested

15. Aug. 22-29, 2006 Ceriodaphnia dubia 100%

>30.4%

Pimepha/es prome/as 100%

<3.29

>30.4%

<3.29

16. Apr. 3-10, 2007 Ceriodaphnia dubia 100%

>30.4%

Pimepha/es prome/as 100%

<3.29

>30.4%

<3.29

17. Oct. 16-23, 2007 Ceriodaphnia dubia 100%

>30.4%

Pimepha/es prome/as 100%

<3.29

>30.4%

<3.29

18. May 6-13, 2008 Ceriodaphnia dubia 100%

>30.4%

Pimepha/es prome/as 100%

<3.29

>30.4%

<3.29

19. Nov. 4-11, 2008 Ceriodaphnia dubia 100%

>30.4%

Pimephales promelas 100%

<3.29

>30.4%

<3.29

20. Apr. 21-28, 2009 Ceriodaphnia dubia 100%

>30.4%

Pimephales promelas 100%

<3.29

>30.4%

<3.29 21. Nov. 3-10, 2009 Ceriodaphnia dubia 100%

>30.4%

Pimephales promelas 100%

<3.29

>30.4%

<3.29

22. May 4-11, 2010 Ceriodaphnia dubia 100%

>30.4%

Pimepha/es prome/as 100%

<3.29

>30.4%

<3.29

23. Sep. 28 - Oct. 5, Ceriodaphnia dubia 100%

<3.13

<32.0%

<3.13 2010 Pimephales promelas 100%

<32.0%

24. Mar. 31 -Apr. 7, Ceriodaphnia dubia 100%

<3.13

<32.0%

<3.13 2011 Pimepha/es promelas 100%

<32.0%

25. Oct. 4-11, 2011 Ceriodaphnia dubia 100%

<3.73

<26.8%

<3.73 Pimepha/es promelas 100%

<26.8%

26. May 8-15, 2012 Ceriodaphnia dubia 100%

<3.73

<26.8%

<3.73 Pimephales promelas 100%

<26.8%

27. Nov. 6-13, 2012 Ceriodaphnia dubia 100%

<3.73

<26.8%

<3.73 Pimepha/es promelas 100%

<26.8%

28. May 14-21, 2013 Ceriodaphnia dubia 100%

<3.73

<26.8%

<3.73 Pimephales promelas 100%

<26.8%

29. Nov. 5-12, 2013 Ceriodaphnia dubia 100%

<3.73

<26.8%

<3.73 Pimepha/es promelas 100%

<26.8%

Summary of WBN Outfall OSN113 WET Biomonitoring Results (continued):

Acute Results Chronic Results (96-h Survival)

Test Date Test Species

% Survival in Highest Study Toxicity Study Toxicity Concentration Units (TUa)

IC2s Units (TUc)

Tested

30. May 13-20, 2014 Ceriodaphnia dubia 100%

<3.73

<26.8%

<3.73 Pimepha/es prome/as 100%

<26.8%

31. Oct. 7-14, 2014 Ceriodaphnia dubia 100%

<3.73

<26.8%

<3.73 Pimephales prome/as 100%

<26.8%

32. May 5-12, 2015 Ceriodaphnia dubia 100%

<3.73

<26.8%

<3.73 Pimephales promelas 100%

<26.8%

33. Nov. 3-10, 2015 Ceriodaphnia dubia 100%

<3.73

<26.8%

<3.73 Pimepha/es prome/as 100%

<26.8%

34. May 10-17, 2016 Ceriodaphnia dubia 100%

<3.73

<26.8%

<3.73 Pimepha/es prome/as 100%

<26.8%

35. Oct. 4-11, 2016 Ceriodaphnia dubia 100%

<3.73

<26.8%

<3.73 Pimepha/es prome/as 100%

<26.8%

36. Jun. 6-13, 2017 Ceriodaphnia dubia 100%

<3.73

<26.8%

<3.73 Pimephales promelas 100%

<26.8%

37. Oct. 3-10, 2017 Ceriodaphnia dubia 100%

<3.73

<26.8%

<3.73 Pimephales promelas 100%

<26.8%

38. Apr. 3-10, 2018 Ceriodaphnia dubia 100%

<3.73

<26.8%

<3.73 Pimephales promelas 100%

<26.8%

39. Nov. 6-13, 2018 Ceriodaphnia dubia 100%

<3.73

<26.8%

<3.73 Pimepha/es prome/as 100%

<26.8%

40. Jul. 9-16, 2019 Ceriodaphnia dubia 100%

<3.73

<26.8%

<3.73 Pimepha/es prome/as 100%

<26.8%

41. Nov. 5-12, 2019 Ceriodaphnia dubia 100%

<3.73

<26.8%

<3.73 Pimepha/es prome/as 100%

<26.8%

Summary of WBN Outfall OSN113 WET Biomonitoring Results (continued):

Acute Results Chronic Results (96-h Survival)

Test Date Test Species

% Survival in Study Highest Toxicity IC2s Concentration Units Tested (TUa)

42. Jul. 7-14, 2020 Ceriodaphnia dubia 100%

<3.73

<26.8%

Pimephales promelas 100%

<26.8%

43. Oct. 6-13, 2020 Ceriodaphnia dubia 100%

<3.73

<26.8%

Pimepha/es promelas 100%

<26.8%

44. May4-11, 2021 Ceriodaphnia dubia 100%

<3.73

<26.8%

Pimephales prome/as 100%

<26.8%

n (total) 88 44 n (last 20 studies) 40 20 Maximum 100%

<3.7 Minimum 100%

<3.7 Mean 100%

<3.7 CV 0.0

<0.1 Current permit was effective February 1, 2017. Applicable permit limit: IC2s ~ 6.7%, 14.9 TUc.

Applicable permit dilution series: Control, 1.68%, 3.4%, 6. 7%, 13.4%, 26.8%.

Shaded area (10 years) depicts studies used in Reasonable Potential calculations.

Study Toxicity Units (TUc)

<3.73

<3.73 44 20

<3.7

<3.1

<3.0

<0.1

OSN 101 Reasonable Potential (RP) Determination Based on OSN101 Effluent Data Only Technical Support Document, Text Box 3-2 and Section 3.3 (EPA/505/2-90-001)

DILUTION OSN101 Discharge Flow= 57.31 MGD (based on June 2021 flow schematic)

Stream 1Q10 = 2062 MGD (based on 2017 permit)

Dilution Factor (DF):

OF= Qs/QW = 2062/57.31 = 35.98 lnstream Wastewater Concentration (IWC):

IWC = DF-1 x 100 = 2.8%

Chronic TOXICITY Step 1 20 WET Studies (10 years), Maximum Observed Toxicity is <8.9 TUc.

[Average toxicity= <8.9 TUc; current compliance limit= 35.71 TUc (IC2s ~ 2.8%

effluent).]

Step 2-3 Coefficient of variation (CV)= 0.1. For 20 samples and a CV of 0.1, the multiplying factor (99% confidence level and 99% probability) is 1.2.

Step 4 Step 5 OSN 113 Low river flow= 2062 MGD and WBN Outfall OSN101 discharge= 57.31 MGD = 2.80% lnstream Waste Concentration (IWC) after mixing.

At a 0.028 IWC:

8.9 TUc x 1.2 x 0.028 = 0.30 TUc 0.30 TUc is less than the ambient CCC criterion of 1.0 TUc. This outcome demonstrates that no Reasonable Potential for excursions above the CCC exists, based on effluent data obtained from testing conducted under operating conditions for the past 10 years.

Reasonable Potential (RP) Determination Based on OSN113 Effluent Data Only Technical Support Document, Text Box 3-2 and Section 3.3 (EPN505/2-90-001)

DILUTION OSN113 Discharge Flow= 201.89 MGD (based on June 2021 flow schematic)

Stream 1Q10 = 2062 MGD (based on 2017 permit)

Dilution Factor (DF):

OF = (Qs + Qw) / Qw = (2062 + 201.89) / 201.89 = 11.2 lnstream Wastewater Concentration (IWC):

IWC = DF-1 x 100 = 8.93%

Chronic TOXICITY Step 1 20 WET Studies (10 years), Maximum Observed Toxicity is 3.7 TUc.

[Average toxicity= 3.7 TUc; compliance limit= 14.9 TUc (IC2s ?: 6.7% effluent).]

Step 2-3 Coefficient of variation (CV) = 0.1. For 20 samples and a CV of 0.1, the multiplying factor (99% confidence level and 99% probability) is 1.2.

Step 4 Step 5 Low stream flow plus WBN Outfall OSN113 discharge= 2263.89 MGD and WBN Outfall OSN113 discharge= 201.89 MGD = 8.93% lnstream Waste Concentration (IWC) after mixing.

At a 0.0673 IWC:

3.7 TUc x 1.2 x 0.0893 = 0.40 TUc 0.40 TUc is less than the ambient CCC criterion of 1.0 TUc. This outcome demonstrates that no Reasonable Potential for excursions above the CCC exists, based on effluent data obtained from testing conducted under operating conditions for the past 10 years.

ML21202A224

Text

Dear Mr. Janji6:

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