Text

NPDES Permit No. TN0020168, TVA - Watts Bar Nuclear Plant, Spring City, Rhea County, Tennessee
	ML11215A099
Person / Time
Site:	Watts Bar
Issue date:	07/28/2011
From:	; Tennessee Valley Authority
To:	; Office of Nuclear Reactor Regulation
References
	TN0020168
	Download: ML11215A099 (149)
	v • d • e

ENCLOSURE 1 TENNESSEE VALLEY AUTHORITY WATTS BAR NUCLEAR PLANT, UNITS 1 AND 2 NPDES PERMIT NO. TN0020168, TVA - WATTS BAR NUCLEAR PLANT, SPRING CITY, RHEA COUNTY, TENNESSEE

STATE OF TENNESSEE DEPARTMENT OF ENVIRONMENT AND CONSERVATION 401 CHURCH STREET L & C ANNEX 6TH FLOOR NASHVILLE TN 37243 Mr. Don Grissette JUL 0 12011 Site Vice President TVA Watts Bar Nuclear Plant 1260 Hwy 68, Nuclear Plant Rd.

Spring City, TN 37381

Subject:

NPDES Permit No. TN0020168 TVA - Watts Bar Nuclear Plant Spring City, Rhea County, Tennessee

Dear Mr. Grissette:

In accordance with the provisions of the Tennessee Water Quality Control Act, Tennessee Code Annotated (T.C.A.), Sections 69-3-101 through 69-3-120, the Division of Water Pollution Control hereby issues the enclosed NPDES Permit.

The continuance and/or reissuance of this NPDES Permit is contingent upon your meeting the conditions and requirements as stated therein.

Please be advised that a petition for permit appeal may be filed, pursuant to T.C.A. Section 69-3-105, subsection (i), by the permit applicant or by any aggrieved person who participated in the public comment period or gave testimony at a formal public hearing whose appeal is based upon any of the issues that were provided to the commissioner In writing during the public comment period or in testimony at a formal public hearing on the permit application. Additionally, for those permits for which the department gives public notice of a draft permit, any permit applicant or aggrieved person may base a permit appeal on any material change to conditions in the final permit from those in the draft, unless the material change has been subject to additional opportunity for public comment. Any petition for permit appeal under this subsection (i) shall be filed with the board within thirty (30) days after public notice of the commissioner's decision to Issue or deny the permit.

If you have questions, please contact the Division of Water Pollution Control at your local Field Office at 1-888-891-T1DEC; or, at this office, please contact Ms. Souraya Fathi at (615) 532-0485 or by E-mail at Souraya.Fathi@tn.gov.

Sincerely, P

Janji6

~Anaager, Permit Section Division of Water Pollution Control P/WAT-3 Endosure cc:

DWPC, Permit Section & Chattanooga Environmental Field Office Ms. Jerri L Phillips, Environmental Scientist, TVA Watts Bar Nuclear Plant, Jlphilllps@tva.gov Ms. Betsy M. Eiford-Lee, Chemistry/Environmental Manager, bmeiford-lee@tva.gov Mr. Michael D. Skaggs, Site Vice President, TVA - Watts Bar Nuclear Plant. mdskaggs@tva.gov Ms. Connie A. Kagey, NPDES Permit Section, EPA Region IV, Kagey.Connie@epamail.epa.gov Mr. Gordon G Park, Manager of Environmental Compliance, Tennessee Valley Authority, ggpaxk@tva.gov Ms. Karrle-Jo Robinson Shell, Environmental Engineer, EPA Region 4, shell.karrie-jo@epa.gov Mr. Brian Paddock, Attorney, Save Our Cumberland Mountains (SOCM), bpaddock@twlakes.net Mr. Barry W. Sulkin, Consultant, Southern Environmental Law Center, 4443 Pecan Valley Road, Nashville, TN 37218 Ms. Linden (Lindy) P. Johnson, Manager - Water Permitting & Compliance, TVA - Environmental Affairs, lpjohnson@tva.gov Ms. Leslie Nale, Plant Manager, TVA, lwnaie@tva.gov Mr. Mike Stielel, Environmental Permitting and Compliance, TVA-Environmental Affairs, mbstiefel@tva.gov

No. TN0020168 Authorization to discharge under the National Pollutant Discharge Elimination System (NPDES)

Issued By Tennessee Department of Environment and Conservation Division of Water Pollution Control 401 Church Street 6th Floor, L & C Annex Nashville, Tennessee 37243-1534 Under authority of the Tennessee Water Quality Control Act of 1977 (T.C.A. 69-3-101 et seq.) and the delegation of authority trom the United States Environmental Protection Agency under the Federal Water Pollution Control Act, as amended by the Clean Water Act of 1977 (33 U.S.C. 1251, et sea.)

Discharger:

TVA - Watts Bar Nuclear Plant is authorized to discharge:

from a facility located:

to receiving waters named:

process wastewater, cooling water and storm water runoff from Outfalls 101 and 102, turbine building sump water, alum sludge supernatant, reverse osmosis reject water, drum dewatering water, water purification plant water, and Supplemental Condenser Cooling Water (noncontact) from Outfall 113 in Spring City, Rhea County, Tennessee Tennessee River at mile 527.9 (Outfall 101), Tennessee River at mile 527.2 (Outfall 102), and Tennessee River at mile 529.2 (Outfall 113) in accordance with effluent limitations, monitoring requirements and other conditions set forth herein.

This permit shall become effective on:

August 1, 2011 This permit shall expire on:

Issuance date:

June 29, 2016 June 30, 2011 E. Davis, Director

ion of Water Pollution Control CN-0759 ROAs 2352 and 2366

TVA-Watts-Bar Nuclear Plant NPDES Permit TNO020168 TABLE OF CONTENTS Pace PART I..........................................................................................................................................................................

1 A.

EFFLUENT LIM ITATIONS AND M ONITORING REQUIREM ENTS.............................................................................

1 B. M ONITORING PROCEDURES...................................................................................................................................

11

1. Representative Sampling......................................................................................................................................

11

2. Sampling Frequency.............................................................................................................................................

12

3. Test Procedures....................................................................................................................................................

12

4. Recording of Results.............................................................................................................................................

12

5. Records Retention................................................................................................................................................

12 C. DEFINITIONS............................................................................................................................................................

12 D. ACRONYMS AND ABBREVIATIONS..........................................................................................................................

14 E. REPORTING.............................................................................................................................................................

15

1. M onitoring Results...............................................................................................................................................

15

2. Additional M onitoring by Permittee.....................................................................................................................

15

3. Falsifying Results and/or Reports.........................................................................................................................

16

4. Outlier Data..........................................................................................................................................................

16 PART II........................................................................................................................................................................

16 A. GENERAL PROVISIONS............................................................................................................................................

16

1. Duty to Reapply....................................................................................................................................................

16

2. Right of Entry........................................................................................................................................................

17

3. Availability of Reports.....................................................................................................................................

17

4. Proper Operation and M aintenance.....................................................................................................................

17

5. Treatment Facility Failure.....................................................................................................................................

17

6. Property Rights.....................................................................................................................................................

17 7 Severability...........................................................................................................................................................

18

8. Other Information................................................................................................................................................

18 B. CHANGESAFFECTINGTHE PERM IT..........................................................................................................................

18

1. Planned Changes..................................................................................................................................................

18

2. Perm it M odification, Revocation, or Termination............................................................................................

18

3. Change of Ownership...........................................................................................................................................

19

4. Change of M ailing Address...................................................................................................................................

19 C. NONCOM PLIANCE..................................................................................................................................................

19

1. Eff cct of Noncompliance......................................................................................................................................

19

2. Reporting of Noncompliance................................................................................................................................

20

3.

Overflow.............................................................................................................................................................

20

4. Upset....................................................................................................................................................................

21

5. Adverse Impact.....................................................................................................................................................

21

6. Bypass...................................................................................................................................................................

22

7. W ashout...............................................................................................................................................................

22 D.

LIABILITIES..............................................................................................................................................................

23

1. Civil and Criminal Liability....................................................................................................................................

23

2. Liability Under State Law......................................................................................................................................

23 PART III.......................................................................................................................................................................

23 A. TOXIC POLLUTANTS.................................................................................................................................................

23 B. REOPENERCLAUSE..................................................................................................................................................

24

TVA-Watts-Bar Nuclear Plant NPDES Permit TN0020168 C. PLACEM ENTOF SIGNS............................................................................................................................................

24 D. ANT]DEGRADATION................................................................................................................................................

24 E. BIOMONITORING REQUIREM ENTS, CHRONIC..........................................................................................................

25 F. BIOCIDE/CORROSION TREATM ENT PLAN..................................................................................................................

27 G. 316(B)......................................................................................................................................................................

27 PART IV.....................................................................................................................................................................

28 STORM W ATER POLLUTION PREVENTION PLAN...........................................................................................................

28 RATIONALE....................................

1 I. DISCHARGER..............................................................................................................................................................

1 II. PERMITSTATUS.........................................................................................................................................................

1 III.

FACILITY DISCHARGES AND RECEIVING W ATERS.................................................................................................

2 IV. APPLICABLE EFFLUENT LIM ITATIONSGUIDELINES...................................................................................................

5 V. PREVIOUS PERM IT LIM ITSAND MONITORING REQUIREM ENTS..........................................................................

8 V.

HISTORICAL MONITORING AND INSPECTION....................................................................................................

8 VII.

NEW PERM ITLIM ITS AND MONITORING REQUIREM ENTS.................................................................................

8 VIII.

M ETALSANDTOXICS.......................................................................................................................................

22 IX.

BIOM ONITORING REQUIREM ENTS, CHRONIC........................................................................................................ 27

x. ANTIDEGRADATION.................................................................................................................................................

29 xl.

PERM IT DURATION.................................................................................................................................................

30 APPENDIX 1 - FACILITY DISCHARGES AND RECEIVING W ATERS..............................................................................

31 APPENDIX 2 - APPLICABLE EFFLUENT LIM ITATIONS GUIDELINES.................................................................................

35 APPENDIX 3 - PREVIOUS PERMIT LIMITS AND MONITORING REQUIREMENTS........................................................

37 APPENDIX 4 - HISTORICAL M ONITORING DATA...................................................................................................... 41 APPENDIX 5A -AM BIENT M ONITORING DATA...................................................................................................

45 APPENDIX 5B - W ATER QUALITY BASED EFFLUENT CALCULATIONS.......................................................................

46 APPENDIX SC - AM M ONIA W ATER QUALITY BASED CALCULATIONS....................................................................... 47 APPENDIX 5D -W ATER QUALITY CALCULATIONS FOR PH........................................................................................ 48 APPENDIX 5E - BIOM ONITORING DILUTION FACTORS.............................................................................................

49 APPENDIX 5F - COM PARISON OF DISCHARGE LIM ITATIONS.......................................................................................

50 APPENDIX SG - NEW PERM IT LIM ITS..........................................................................................................................

52 APPENDIX 5H - M RZ...................................................................................................................................................

57

TVA-Watts-Bar Nuclear Plant NPDES Permit TN0020168 Page 1 of 29 I

PART I J

A.

EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS TVA - Watts Bar Nuclear (WBN) Plant is authorized to discharge process wastewater, cooling water and storm water to the Tennessee River (Outfalls 101,102, and 113) associated with nuclear electric power generation as described in the Rationale and permit application.

These discharges and three internal discharge locations (Outfalls 103, 107, and 114) shall be limited and monitored by the permittee as follows.

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.

TVA Watts Bar Nuclear Plant is authorized to discharge low volume wastewater, noncontact-cooling water, cooling tower blowdown, boiler blowdown water, storm water, and other process and nonprocess wastewater as described in the permit Rationale and application.

Outfall 101 discharges through a dual-pipe diffuser to the Tennessee River at mile 527.9.

These discharges shall be limited and monitored as specified below:

Description : External Outfall, Number :101, Monitoring : Effluent Gross, Season : All Year Paraete -_

Value Unit Samole Type Frequency Sast Parameter +/-J

'ualif:er

.Basi ical Chlorine, total residual (TRC) (2,3)

Chlorine, total residual (TRC) (2,3)

Chromium, total (as Cr)

Certification of in-stream flow 3,500 cfs or greater when required (7)

Flow (1)

Oil & Grease*

Report Report Report 0.1 0.1 2

2 Temperature, water deg. C (4)

Total Suspended Solids (TSS)

Total Suspended Solids (TSS)

Zinc, total (as Zn)

Zinc, total (as Zn) pH (2)*

pH (2)*

<=

20

<=

15

<=

35

<=

100

<=

30

<=1

>=

6.0

<=

9.0 mgIL mg/L mg/L mg/L Y=I ;N=0 Mga'd Mgal/d mg/L mg/L deg C mg/L mg/L mg/L mg/L Su SU Grab (2,3)

Grab (2,3)

Grab Grab Operation Records Recorder Recorder Grab Grab Operation Records Grab Grab Grab Grab Grab Grab Five Per Week Five Per Week Waived (6)

Waived (6)

Monthly Continuous Continuous Monthly Monthly Continuous Monthly Monthly Twice Per Month Twice Per Month Twice Per Month Twice Per Month Monthly Average Daily Maximum Daily Maximum Month ly Average Total Monthly Average Daily Maximum Daily Maximum Monthly Average Daily Maximum Daily Maximum Monthly Average Monthly Average Daily Maxim um Minimum Maximum

TVA-Watts-Bar Nuclear Plant NPDES Permit TN0020168 Page 2 of 29 Description External Outfall, Number: 101, Monitoring : Effluent Gross, Season All Year

ara er.

oaiifler V

Value Unit Spinnle Tvoe Freuency.statistical.Base IC25 Static Renewal 7 Day Chronic Ceriodaphnia (5) 2.8 Composite 2/Year Minimum IC25 Static Renewal 7 Day Chronic Pimephales (5) 2.8 Composite 2/Year Minimum

1)

Flow shall be reported In Million Gallons per Day (MGD). In the event that the continuous flow monitor is out of service, flow monitoring shall be estimated by intake pump logs or the behavior (e.g., the rate of filling and emptying) of the yard holding pond.

2) pH and TRC analyses shall be performed within fifteen (15) minutes of sample collection.

3)

The acceptable methods for analysis of TRC are any methods specified In Title 40 CFR, Part 136 as amended. The method detection level (MDL) for TRC shall not exceed 0.05 mg/I unless the permittee demonstrates that its MDL is higher. The permittee shall retain the documentation that justifies the higher MDL and have it available for review upon request. In cases where the permit limit is less that the MDL, the reporting of TRC at less than the MDL shall be interpreted to constitute compliance with the permit limit. The acceptable methods for detection and reporting of total residual chlorine are referenced in Part I, Section B, Monitoring Procedures, subsection 3. Test Procedures, paragraph b.

4) When the temperature monitoring equipment falls, monitoring will be done once per day. Reasonable and timely effort will be made to restore the temperature recorder to operation as soon as possible. See Part Ill for further temperature requirements.

5)

Sampling and analysis required only if discharge is operated 30 days or more during the semi-annual periods January through June or July through December and if all toxicity testing requirements have not already been completed for Outfall 101. See Part III for methodology.

6)

Monitoring for chromium is waived per 40 CFR 122.44 (a)(2)(1). See Rationale for more comments.

7)

Certification shall be made during any month that a discharge occurs from this outfall.

monitoring for pH, total suspended solids, and oil and grease apply only when the turbine building sump is aligned to bypass Internal Monitoring Points 103 and 107 where monitoring these parameters is required.

Note: There shall be no discharge of PCBs.

Discharges from Outfall 101 are authorized only during periods when the flow in the receiving stream is at a minimum of 3,500 cubic feet per second (cfs) or greater. Compliance with the minimum in-stream flow requirement of 3,500 cubic feet per second shall be certified monthly with the submission of Discharge Monitoring Reports submitted to the Division for this outfall.

Records concerning the instream flow shall be maintained and available upon request.

TVA-Watts-Bar Nuclear Plant NPDES Permit TNO020168 Page 3 of 29 TVA Watts Bar Nuclear Plant is authorized to discharge low volume wastewater, once through condenser cooling water, noncontact cooling water, steam generator blowdown water, storm water, and other process and nonprocess wastewater as described in the permit Rationale and application. Discharge is authorized through Outfall 102 to the Tennessee River at mile 527.2.

These discharges shall be limited and monitored by the permittee as specified below:

Description : External Outfall, Number : 102, Monitoring : Effluent Gross, Season : All Year Parameterr-i :

Chlorine, total residual (TRC) (2,3)

Chromium, total (as Cr)

Certification of in-stream flow 3,500 cfs or greater when required (7)

Flow (1)

Oil & Grease' Oil & Grease Temperature, water deg. C (4)

Total Suspended Solids (TSS)'

Total Suspended Solids (TSS)

Zinc, total (as Zn)

Zinc, total (as Zn) pH (2) pH (2)'

66ualifiler'Valuie Unit

<=

0.1 mg/L

<=

0.1 mg/L

<=

2 mg/L

<=

2 mg/L Report Y=1;N=O Report Mgal/d Report Mgal/d

<=

20 mg/L

<=

15 mg/L

<=

35 deg C

<=

100 mg/L

<=

30 mg/L

<=

1 mg/L

<=

1 mg/L

>=

6.0 su

<=

9.0 Su Sample Type Grab G rab Grab Grab Operation Records Instantaneous Instantaneous Grab Grab Grab Grab G rab Grab Grab Grab Grab Frequency Statistical Base Five Per Week Five Per Week Waived (6)

Waived (6)

Monthly Daily Daily Monthly Monthly Daily Monthly Monthly Twice Per Month Twice Per Month Twice Per Month Twice Per Month Monthly Average Daily Maximum Daily Maximum Monthly Average Total Monthly Average Daily Maximum Daily Maximum Monthly Average Daily Maximum Daily Maximum Monthly Average Monthly Average Daily Maximum Minimum Maximum

TVA-Watts-Bar Nuclear Plant NPDES Permit TN0020168 Page 4 of 29 Description External Outfall, Number 102, Monitoring Effluent Gross, Season All Year

_.Cluait_ r Value; Unit' Sample TypeV Frequency Statistical

________Base IC25 Static Renewal 7 Day 2.8 Composite 2/Year Minimum Chronic Ceriodaphnia (5)

IC25 Static Renewal 7 Day 2.8 Composite 2/Year Minimum Chronic Plmephales (5)

(1) Flow shall be reported in Million Gallons per Day (MGD). In the event that the continuous flow monitor is out of service, flow monitoring shall be estimated by intake pump logs or the behavior (e.g., the rate of filling and emptying) of the yard holding pond.

(2) pH and TRC analyses shall be performed within fifteen (15) minutes of sample collection.

(3) The acceptable methods for analysis of TRC are any methods specified in Title 40 CFR, Part 136 as amended. The method detection level (MDL) for TRC shall not exceed 0.05 mg/I unless the permittee demonstrates that Its MDL Is higher. The permittee shall retain the documentation that justifies the higher MDL and have it available for review upon request. In cases where the permit limit is less that the MDL, the reporting of TRC at less than the MDL shall be Interpreted to constitute compliance with the permit limit. The acceptable methods for detection and reporting of total residual chlorine are referenced in Part I, Section B. Monitoring Procedures, subsection 3. Test Procedures, paragraph b.

(4) When the temperature monitoring equipment fails, monitoring will be done once per day. Reasonable and timely efiort will be made to restore the temperature recorder to operation as soon as possible. See Part III for further temperature requirements.

(5) See Part Ill for methodology.

(6) Monitoring for chromium is waived per 40 CFR 122.44 (a)(2)(1). See Rationale for more comments.

(7) Certification shall be made during any month that a discharge occurs from this outfall.

I monitoring for pH, total suspended solids and oil and grease apply only when the turbine building sump is aligned to bypass Internal Monitoring Points 103 and 107 where monitoring these parameters is required.

Note: There shall be no discharge of PCBs.

Additional monitoring requirements and conditions applicable to Outfall 102 include:

Discharge through Outfall 102 (emergency overflow) is permitted only under emergency situations. This includes times when the diffuser pipe system is isolated as a result of diffuser maintenance and other emergency situations to preserve the integrity of the yard holding pond dikes such as in the event of a catastrophic storm event. All reasonable efforts shall be taken to resume normal discharge through Outfall 101 as soon as possible.

TVA-Watts-Bar Nuclear Plant NPDES Permit TN0020168 Page 5 of 29 TVA Watts Bar Nuclear Plant is authorized to discharge turbine building sump water, alum sludge supernate, R.O. reject water, drum dewatering water, water purification plant water, and storm water through Outfall 103, the Low Volume Waste Pond, an internal monitoring point as described in the Rationale and the permit application. These discharges shall be limited and monitored by the permittee as specified below:

Description : External Outfall, Number : 103, Monitoring : Effluent Gross, Season : All Year Parameterl,.*

Flow (1)

Oil & Grease Oil & Grease Total Suspended Solids (T Total Suspended Solids (T pH (2) pH (2) qualifier.! Vaiui'.

Report Report

<=

20

<=

15 SS)

<=

100 SS)

<=

30

>=

6.0

<=

9.0 unit Mgal/d Mgal/d mg/L mg/L mg/L mg/L SU SU Samole T"oe Recorder Recorder Grab Grab Grab Grab Grab Grab Frequehcy Continuous Continuous Monthly Monthly Monthly Monthly Monthly Monthly Statistical Base Daily Maximum Monthly Average Daily Maximum Monthly Average Daily Maximum Monthly Average Minimum Maximum (1) Flow shall be reported in Million Gallons per Day (MGD).

(2) pH analyses shall be performed within fifteen (15) minutes of sample collection.

TVA-Watts-Bar Nuclear Plant NPDES Permit TN0020168 Page 6 of 29 TVA Watts Bar Nuclear Plant is authorized to discharge metal cleaning wastewater, turbine building station sump water, diesel generator coolant, intermittent micro-filtered condenser tube cleaning discharges, and storm water through Outfall 107, the Lined and Unlined Ponds, an internal monitoring point as described in the Rationale and permit application.

These discharges shall be limited and monitored by the permittee as specified below:

Description : External Outfall, Number : 107, Monitoring : Effluent Gross, Season : All Year

'Paameeter[t.j Copper, total (as Cu)

Copper, total (as Cu)

Flow (1)

Iron, total (as Fe)

Oil & Grease Oil & Grease Phosphorus, total (as P) (3)

Phosphorus, total (as P) (3)

Total Suspended Solids (TSS)

Total Suspended Solids (TSS) pH (2) pH (2)

<=

1

<=

1 Report Report

<= 1

<=

20

<=

15 mg/L mgaL MgaVd MgaVd mg/L mgAL mg/L mg/L mgit mg/i mg*_

mg/L MA su su Sample Type Grab Grab Calculated Calculated Grab Grab Grab Grab Grab Grab Grab Grab Grab Grab Frequency Once Per Batch Once Per Batch Once Per Batch Once Per Batch Once Per Batch Once Per Batch Once Per Batch Once Per Batch Once Per Batch Once Per Batch Once Per Batch Once Per Batch Once Per Batch Once Per Batch Statistical Base Daily Maximum Monthly Average Monthly Average Daily Maximum Monthly Average Daily Maximum Daily Maximum Monthly Average Monthly Average Daily Maximum Daily Maximum Monthly Average Minimum Maximum 1

100 30 Report Report (1) Flow shall be reported in Million Gallons per Day (MGD) for each batch discharge. If a batch discharge extends for more than a 24-hour period, flow measurement shall be obtained and reported for each 24 hour2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months period.

(2) pH analyses shall be performed within fifteen (15) minutes of sample collection.

(3) Sampling for phosphorus is required only when metal cleaning chemicals containing phosphorus are being used.

TVA-Watts-Bar Nuclear Plant NPDES Permit TN0020168 Page 7 of 29 TVA Watts Bar Nuclear Plant is authorized to discharge supplemental condenser cooling water through Outfall 113 to the Tennessee River at mile 529.2 as described in the Rationale and permit application.

These discharges shall be limited and monitored by the permittee as specified below:

Description : External Outfall, Number : 113, Monitoring : Effluent Gross, Season : All Year Parameterl..J Chlorine, total residual (TRC) (2, 3, 5)

Chlorine, total residual (TRC) (2, 3, 5)

Certification of in-stream flow 3,500 cfs or greater when required Flow (1)

Flow (1)

Oxygen, dissolved (DO)

Temperature, water deg. C Total Suspended Solids (TSS)

Total Suspended Solids (TSS) pH (2) pH (2)

Qualifier Value

<=

0.09

<=

0.158 Report Report Report Report Report mg/L mg/L Y=1 ;N=O Mgal/d Mgal/d m g/L deg C mg/L mg/L SUI SU Sample Type Grab Grab Operation Records Recorder (6)

Recorder (6)

Grab Recorder (6)

Grab Grab Grab Grab

.Frequency Monthly Monthly Monthly Continuous Continuous Monthly Hourly Monthly Monthly Monthly Monthly 7 StatlSiical Base Monthly Average Daily Maximum Total Monthly Average Daily Maximum Minimum Daily Maximum Monthly Average Daily Maximum Minimum Maximum 30 100 6.0 9.0 Description : External Outfall, Number :113, Monitoring : Instream Monitoring, Season All Year Parameter Q:ualifier Value Unit Sample Tyne Freauency Btatistical Base Temperature rise, upstream to downstream 3.0 deg C Calculated (6)

Houry Daily Maximum Temperature rate of change 2.0 deg C/hr Calculated (6)

Hourly Daily Maximum Temperature, edge of mixing zone 30.5 deg C Recorder (6)

Hourly Daily Maximum Description : External Outfall, Number : 113, Monitoring : See Comments, Season : All Year Statistical Parameter Qualifier Value Unit Sample Type Frequency Base Temperature, receiving stream bottom

<=

33.5 deg C Recorder Hourly Daily Maximum

TVA-Watts-Bar Nuclear Plant NPDES Permit TN0020168 Page 8 of 29 Description External Outfall, Number : 113, Monitoring Effluent Gross, Season All Year Statistical Parameterl..J

,Qualifier Value Unit:

Samole Tv-e...Frequency Base IC25 Static Renewal 7 Day Chronic Ceriodaphnia (4) 6.7 Composite 2/Year Minimum IC25 Static Renewal 7 Day Chronic Pimephales (4) 6.7 Composite 2/Year Minimum (1) Flow shall be reported in Million Gallons per Day (MGD).

(2) pH and TRC analyses shall be performed within fifteen (15) minutes of sample collection.

(3) The acceptable methods for analysis of TRC are any methods specified in Title 40 CFR, Part 136 as amended. The method detection level (MDL) for TRC shall not exceed 0.05 mg/I unless the permittee demonstrates that its MDL is higher. The permittee shall retain the documentation that justifies the higher MDL and have it available for review upon request. In cases where the permit limit is less that the MDL, the reporting of TRC at less than the MDL shall be interpreted to constitute compliance with the permit limit. The acceptable methods for detection and reporting of total residual chlorine are referenced in Part I, Section B. Monitoring Procedures, subsection 3. Test Procedures, paragraph b.

(4) See Part III for methodology (5) Sampling for TRC shall be 5/Week during periods when the Supplemental Condenser Cooling Water (SCCW) system is in operation.

(6) See additional (bulleted) comments in permit.

TVA-Watts-Bar Nuclear Plant NPDES Permit TN0020168 Page 9 of 29 TVA Watts Bar Nuclear Plant is authorized to discharge SCCW intake screen backwash to surface water through Outfall 114, an internal monitoring point as described in the Rationale and permit application. These discharges shall be limited and monitored by the permittee as specified below:

PERMIT LIMITS FOR OUTFALL 114 TVA-Watts Bar Nuclear Supplemental Condenser Cooling Water Intake Screen Backwash water 1.) No numerical monitoring limitations are applied to this outfall.

Additional limitations, conditions, and monitoring requirements applicable to Outfalls 101, 102, 103, 107, and 113 include:

There shall be no distinctly visible floating scum, oil or other matter contained in the wastewater discharge. The wastewater discharge must not cause an objectionable color contrast in the receiving stream.

The wastewater discharge shall not contain pollutants in quantities that will be hazardous or otherwise detrimental to humans, livestock, wildlife, plant life, or fish and aquatic life in the receiving stream.

Sludge or any other material removed by any treatment works must be disposed of in a manner, which prevents its entrance into, or pollution of any surface or subsurface waters.

Additionally, the disposal of such sludge or other material must be in compliance with the Tennessee Solid Waste Disposal Act, TCA 68-31-101 et seq. and the Tennessee Hazardous Waste Management Act, TCA 68-46-101 et seq.

For the purpose of evaluating Total Residual Chlorine/Total Residual Oxidant (TRC/TRO) as required in this permit, analyses shall include any residual bromine with results reported as chlorine, i.e., one test shall be used for situations where combinations of chlorine and bromine are used. The permittee shall sample the effluent when chemical additives are used resulting in TRC/TRO pollutants in the discharge as stipulated in the preceeding permit limits tables.

For batch discharges the monitoring and reporting of measurements of FLOW, the "Monthly Avg." shall be the total flow volume during the reporting period divided by the number of calendar days in that period. The "Daily Max." shall be the total flow volume for the day with the greatest amount of discharge during the reporting period. Example: 3 discharges of 15,000 gallons/day and 1 discharge of 20,000 gallons/day during a 1-month period result in a Monthly Avg. of 65,000 gallons/30 days, or 2,166 gallons/day (to be reported as 0.002166 MGD). The Daily Max to be reported for this example is 20,000 gallons/day or 0.020 MGD.

There shall be no discharge of PCB. With regard to PCB sampling, the permittee will have the opportunity to conduct additional tests, as necessary, to establish the existence of any PCBs in the effluent if they exist. The results of these additional tests and any conclusions drawn must be submitted to the Division within fifteen (15) days along with the monthly discharge monitoring report. The Division shall maintain the exclusive determination of the

TVA-Watts-Bar Nuclear Plant NPDES Permit TN0020168 Page 10 of 29 validity of the additional tests and any conclusions to be drawn from them regarding the possibility of matrix interferences, or the need for additional monitoring. The decision of the division in this matter shall be final.

Priority Pollutants contained in chemicals added for cooling tower maintenance except for zinc, shall not be discharged in cooling tower blowdown in amounts that are detectable by analytical methods in 40 CFR Part 136.

The use of water treatment chemicals containing chromium is prohibited under this permit.

Chromium monitoring is waived by authority of 40 CFR 122.44 (a)(2)(i), where application sample results demonstrated no Cr pollutant discharged from these outfalls (101 and 102).

Discharges are authorized for Outfall 101 only during periods when flow in the receiving stream is at a minimum of 3,500 cfs.

All changes to the flow rate of the SCCW discharge (Outfall 113) shall be done during periods when flow in the receiving waters is at a minimum of 3,500 cfs. This includes periods of start-up, shutdown as well as other similar abrupt flow rate changes of the SCCW. When thermally loaded effluent is discharged through Outfall 102, all reasonable efforts shall be made to keep flow to a minimum of 3500 cfs in the receiving waters.

If such flow is absent, the permittee shall verify protection of water quality by taking instream temperature measurements. Compliance with flow requirements for 3,500 cfs flow instream for Outfalls 101, 102 and 113 discharges shall be certified monthly with the submission of Discharge Monitoring Reports submitted to the Division for these outfalls. Records concerning the instream flow shall be maintained and available upon request.

The thermal mixing zones for Outfall 113 remain unchanged from the previous permit (see diagram in Appendix 5h). The discharge from Outfall 113 shall be limited and monitored by the permittee as specified below:

" In recognition of the dynamic behavior of the thermal effluent in the river, monitoring shall be required for an active mixing zone and a passive mixing zone as described in the permit rationale.

The passive mixing zone includes the following dimensions: (1) a maximum width of from bank to bank in the river, and (2) a maximum length of 1000 feet downstream of the outfall. It has been documented that there is a zone of (cool water) refuge in the bottom layer to allow for fish and other species to pass below the thermal plume.

" Compliance for the passive mixing zone shall be by two instream temperature surveys, one conducted during winter ambient conditions and one during summer ambient conditions. The surveys shall be performed while the SCCW system is thermally loaded with low river flow conditions and shall include temperature profiles at a sufficient number of locations across the downstream edge of the passive mixing zone to locate the effluent plume.

The measurements shall be compared with the results from the thermal plume model and shall be summarized in a report to the division semiannually. Survey requirements for the passive mixing zone shall be waived if unexpected events do not safely allow the establishment of a zero flow condition in the river (e.g., flood operation).

" Compliance with TEMPERATURE, Edge of Mixing zone; TEMPERATURE, Rise Upstream to Downstream; and TEMPERATURE, Rate of Change shall be applicable at the edge of the active mixing zone.

TVA-Watts-Bar Nuclear Plant NPDES Permit TN0020168 Page 11 of 29 Daily maximum temperatures for the TEMPERATURE, effluent; TEMPERATURE, Edge of Mixing zone; TEMPERATURE, Rise Upstream to Downstream; and TEMPERATURE, Rate of Change shall be determined from 1-hour average values.

The average values shall be calculated every 15 minutes using the current and previous four 15-minute values, thus creating a rolling average.

" As demonstrated by monitoring at the edge of the active mixing zone, the maximum temperature shall not exceed 30.50C (except as a result of natural causes), the maximum change in temperature relative to the upstream control point shall not exceed 30C (except as a result of natural causes), and the maximum temperature rate of change shall not exceed 20C per hour (except as a result of natural causes).

The upstream ambient river temperature (control point) for determining the TEMPERATURE, Rise Upstream to Downstream for the active mixing zone shall be determined by sensors positioned in the discharge from the powerhouse at.Watts Bar Dam. The upstream ambient river temperature shall be determined by the first sensor at or below a depth of 5 feet. This monitor shall also be used for ambient river temperature for the passive mixing zone surveys.

" The river temperature for determining the TEMPERATURE, Edge of Mixing Zone and TEMPERATURE, rate-of-change shall be by two floating water temperature stations at the downstream edge of the active mixing zone. One station shall be located near the right-hand shoreline of the river (facing downstream) and one station shall be located near the center of the river.

At each station, the water temperature at the 5-foot depth shall be determined as the average of sensors at three depths-3 feet, 5 feet, and 7 feet. The downstream river temperature and temperature rate of change shall be determined by the average temperature of the two floating water temperature stations.

" Compliance with TEMPERATURE, Receiving Stream Bottom shall be applicable at the edge of a square mussel relocation zone located on the bottom of the river at the outfall and having a side dimension not less than 150 feet. The temperature shall be determined by a sensor located along the edge of the mussel relocation zone.

" The daily maximum value for the TEMPERATURE, Receiving Stream Bottom shall.

be determined from 15-minute values. The 1-hour average value shall be calculated every 15 minutes using the current and previous four 15-minute values, thus creating a rolling average. The temperature shall be reported on the Discharge Monitoring Reports as the daily maximum (highest value for a day) and monthly average value (average of all four monitors).

B.

MONITORING PROCEDURES

1. Representative Sampling Samples and measurements taken in compliance with the monitoring requirements specified herein shall be representative of the volume and nature of the monitored discharge, and shall be taken after treatment and prior to mixing with uncontaminated storm water runoff or the receiving stream.

The permittee shall maintain a capability for composite sampling of Outfall 101 discharges. Temporary or mobile equipment may be used for this since the sampling protocal

TVA-Watts-Bar Nuclear Plant NPDES Permit TNO020168 Page 12 of 29 instituted does not utilize standard sample collection equipment to collect the samples. TVA shall ensure sampling protocol conforms to 40 CFR 136 procedures.

2. Sampling Frequency If there is a discharge from a permitted outfall on any given day during the monitoring period, the permittee must sample and report the results of analyses accordingly, and the permittee should not mark the 'No Discharge' box on the Discharge Monitoring Report form.

3. Test Procedures

a. Test procedures for the analysis of pollutants shall conform to regulations published pursuant to Section 304 (h) of the Clean Water Act (the "Act"), as amended, under which such procedures may be required.

b. Unless otherwise noted in the permit, all pollutant parameters shall be determined according to methods prescribed in Title 40, CFR, Part 136, as amended, promulgated pursuant to Section 304 (h) of the Act.

4. Recording of Results For each measurement or sample taken pursuant to the requirements of this permit, the permittee shall record the following information:

a. The exact place, date and time of sampling;

b. The exact person(s) collecting samples;

c. The dates and times the analyses were performed;

d. The person(s) or laboratory who performed the analyses;

e. The analytical techniques or methods used, and;

f. The results of all required analyses.

5. Records Retention All records and information resulting from the monitoring activities required by this permit including all records of analyses performed and calibration and maintenance of instrumentation shall be retained for a minimum of three (3) years, or longer, if requested by the Division of Water Pollution Control.

C.

DEFINITIONS The Daily Maximum Concentration is a limitation on the average concentration, in milligrams per liter (mg/L), of the discharge during any calendar day. When a proportional-to-flow composite sampling device is used, the daily concentration is the concentration of that 24-hour

TVA-Watts-Bar Nuclear Plant NPDES Permit TNO020168 Page 13 of 29 composite; when other sampling means are used, the daily concentration is the arithmetic mean of the concentrations of equal volume samples collected during any calendar day or sampling period.

The Monthly Average Concentration,, a limitation on the discharge concentration, in milligrams per liter (mg/L), is the arithmetic mean of all daily concentrations determined in a one-month period. For the purpose of this definition, a frequency of 2/Month is representative of 2 separate daily samples, each sample having been collected on a separate day during the monitoring period.

The Monthly Average Amount, a discharge limitation measured in pounds per day (lb/day), is the total amount of any pollutant in the discharge by weight during a calendar month divided by the number of days in the month that the production or commercial facility was operating.

Where less than daily sampling is required by a permit, the monthly average amount shall be determined by the summation of all the measured daily discharges by weight divided by the number of days during the calendar month when the measurements were made. For the purpose of this definition, a frequency of 2/Month is representative of 2 separate daily samples, each sample having been collected on a separate day during the monitoring period.

The Daily Maximum Amount, is a limitation measured in pounds per day (lb/day), on the total amount of any pollutant in the discharge by weight during any calendar day.

The Instantaneous Concentration is a limitation on the concentration, in milligrams per liter (mg/L), of any pollutant contained in the discharge determined from a grab sample taken at any point in time.

A Composite Sample, for the purposes of this permit, is a sample collected continuously over a period of 24-hours at a rate proportional to the flow. Composite sample should be a combination of at least 8 sample aliquots of at least 100 milliliters, collected at periodic intervals during the operating hours of a facility over a 24-hour period.

A Grab Sample, for the purposes of this permit, is defined as a single effluent sample of at least 100 milliliters (sample volumes <100 milliliters are allowed when specified per standard methods, latest edition) collected at a randomly selected time over a period not exceeding 15 minutes. The sample(s) shall be collected at the period(s) most representative of the total discharge.

For the purpose of this permit, a Calendar Day is defined as any 24-hour period.

For the purpose of this permit, a Quarter is defined as any one of the following three month periods: January 1 through March 31, April 1 through June 30, July 1 through September 30, or October 1 through December 31.

For the purpose of this permit, Semi-annually means the same as "once every six months."

Measurements of the effluent characteristics concentrations may be made anytime during a 6 month period beginning from the issuance date of this permit so long as the second set of measurements for a given 12 month period are made approximately 6 months subsequent to that time, if feasible.

For the purpose of this permit, Annually is defined as a monitoring frequency of once every twelve (12) months beginning with the date of issuance of this permit so long as the following set of measurements for a given 12 month period are made approximately 12 months subsequent to that time.

TVA-Watts-Bar Nuclear Plant NPDES Permit TNO020168 Page 14 of 29 D.

ACRONYMS AND ABBREVIATIONS 1010- 1-day minimum, 10-year recurrence interval 30Q20 day minimum, 20-year recurrence interval 7010 day minimum, 10-year recurrence interval BAT - best available technology economically achievable BCT - best conventional pollutant control technology BDL - below detection level BOD5 - five day biochemical oxygen demand BPT - best practicable control technology currently available CBOD, - five day carbonaceous biochemical oxygen demand CEI - compliance evaluation inspection CFR - code of federal regulations CFS - cubic feet per second CFU - colony forming units CIU - categorical industrial user CSO - combined sewer overflow DMR - discharge monitoring report D.O. - dissolved oxygen E. coi-Escherichia co/i EFO - environmental field office LB(lb) - pound IC25 - inhibition concentration causing 25% reduction in survival, reproduction and growth of the test organisms IU - industrial user IWS - industrial waste survey LC05 - acute test causing 50% lethality MDL - method detection level MGD - million gallons per day MG/L(mg/I) - milligrams per liter ML - minimum level of quantification ml - milliliter MLSS - mixed liquor suspended solids MOR - monthly operating report NOD] - no discharge NOEC - no observed effect concentration NPDES - national pollutant discharge elimination system PL - permit limit POTW - publicly owned treatment works RDL - required detection limit SAR - semi-annual [pretreatment program] report SIU - significant industrial user SSO - sanitary sewer overflow STP - sewage treatment plant TCA - Tennessee code annotated TDEC - Tennessee Department of Environment and Conservation TIE/TRE - toxicity identification evaluation/toxicity reduction evaluation TMDL - total maximum daily load

TVA-Watts-Bar Nuclear Plant NPDES Permit TNO020168 Page 15 of 29 TRC - total residual chlorine TSS - total suspended solids WOBEL - water quality based effluent limit E.

REPORTING

1. Monitoring Results Monitoring results shall be recorded monthly and submitted monthly using Discharge Monitoring Report (DMR) forms supplied by the Division of Water Pollution Control or comparable forms provided by the permittee, and approved by the Division of Water Pollution Control. Submittals shall be postmarked no later than 15 days after the completion of the reporting period. The top two copies of each report are to be submitted. A copy should be retained for the permittee's files. DMRs and any communication regarding compliance with the conditions of this permit must be sent to:

TENNESSEE DEPT. OF ENVIRONMENT & CONSERVATION DIVISION OF WATER POLLUTION CONTROL COMPLIANCE REVIEW SECTION 401 CHURCH STREET L & C ANNEX 6TH FLOOR NASHVILLE TN 37243-1534 A copy of the completed and signed DMR shall be mailed to the Chattanooga Environmental Field Office (EFO) at the following address:

TENNESSEE DEPT. OF ENVIRONMENT & CONSERVATION DIVISION OF WATER POLLUTION CONTROL CHATTANOOGA ENVIRONMENTAL FIELD OFFICE 540 MCCALLIE AVENUE, SUITE 550 CHATTANOOGA TN 37402 The first DMR is due on the fifteenth of the month following permit effectiveness.

DMRs and any other information or report must be signed and certified by a responsible corporate officer as defined in 40 CFR 122.22, a general partner or proprietor, or a principal municipal executive officer or ranking elected official, or his duly authorized representative.

Such authorization must be submitted in writing and must explain the duties and responsibilities of the authorized representative.

The electronic submission of DMRs shall be accepted only if approved in writing by the division.

For purposes of determining compliance with this permit, data submitted in electronic format is legally equivalent to data submitted on signed and certified DMR forms.

2. Additional Monitoring by Permittee If the permittee monitors any pollutant specifically limited by this permit more frequently than required at the location(s) designated, using approved analytical methods as specified herein,

TVA-Watts-Bar Nuclear Plant NPDES Permit TNO020168 Page 16 of 29 the results of such monitoring shall be included in the calculation and reporting of the values required in the DMR form. Such increased frequency shall also be indicated on the form.

3. Falsifying Results and/or Reports Knowingly making any false statement on any report required by this permit or falsifying any result may result in the imposition of criminal penalties as provided for in Section 309 of the Federal Water Pollution Control Act, as amended, and in Section 69-3-115 of the Tennessee Water Quality Control Act.

4. Outlier Data Outlier data include analytical results that are probably false. The validity of results is based on operational knowledge and a properly implemented quality assurance program. False results may include laboratory artifacts, potential sample tampering, broken or suspect sample containers, sample contamination or similar demonstrated quality control flaw.

Outlier data are identified through a properly implemented quality assurance program, and according to ASTM standards (e.g. Grubbs Test, 'h' and 'k' statistics). Furthermore, outliers should be verified, corrected, or removed, based on further inquiries into the matter. If an outlier was verified (through repeated testing and/or analysis), it should remain in the preliminary data set. If an outlier resulted from a transcription or similar clerical error, it should be corrected and subsequently reported.

Therefore, only if an outlier was associated with problems in the collection or analysis of the samples, and as such does not conform with the Guidelines Establishing Test Procedures for the Analysis of Pollutants (40 CFR §136), it can be removed from the data set and not reported on the Discharge Monitoring Report forms (DMRs). Otherwise, all results (including monitoring of pollutants more frequently than required at the location(s) designated, using approved analytical methods as specified in the permit) should be included in the calculation and reporting of the values required in the DMR form. The permittee is encouraged to use "comment" section of the DMR form (or attach additional pages), in order to explain any potential outliers or dubious results.

I PART II j

A.

GENERAL PROVISIONS

1. Duty to Reapply Permittee is not authorized to discharge after the expiration date of this permit. In order to receive authorization to discharge beyond the expiration date, the permittee shall submit such information and forms as are required to the Director of Water Pollution Control (the "Director")

no later than 180 days prior to the expiration date. Such applications must be properly signed and certified.

TVA-Watts-Bar Nuclear Plant NPDES Permit TNO020168 Page 17 of 29

2. Right of Entry The permittee shall allow the Director, the Regional Administrator of the U.S. Environmental Protection Agency, or their authorized representatives, upon the presentation of credentials:

a. To enter upon the permittee's premises where an effluent source is located or where records are required to be kept under the terms and conditions of this permit, and at reasonable times to copy these records;

b. To inspect at reasonable times any monitoring equipment or method or any collection, treatment, pollution management, or discharge facilities required under this permit; and

c. To sample at reasonable times any discharge of pollutants.

3. Availability of Reports Except for data determined to be confidential under Section 308 of the Federal Water Pollution Control Act, as amended, all reports prepared in accordance with the terms of this permit shall be available for public inspection at the offices of the Division of Water Pollution Control. As required by the Federal Act, effluent data shall not be considered confidential.

4. Proper Operation and Maintenance

a. The permittee shall at all times properly operate and maintain all facilities and systems (and related appurtenances) for collection and treatment which are installed or used by the permittee to achieve compliance with the terms and conditions of this permit. Proper operation and maintenance also includes adequate laboratory and process controls and appropriate quality assurance procedures. This provision requires the operation of backup or auxiliary facilities or similar systems, which are installed by a permittee only when the operation is necessary to achieve compliance with the conditions of the permit. Backup continuous pH and flow monitoring equipment are not required.

b. Dilution water shall not be added to comply with effluent requirements to achieve BCT, BPT, BAT and or other technology-based effluent limitations such as those in State of Tennessee Rule 1200-4-5-.03.

5. Treatment Facility Failure The permittee, in order to maintain compliance with this permit, shall control production, all discharges, or both, upon reduction, loss, or failure of the treatment facility, until the facility is restored or an alternative method of treatment is provided. This requirement applies in such situations as the reduction, loss, or failure of the primary source of power.

6. Property Rights The issuance of this permit does not convey any property rights in either real or personal property, or any exclusive privileges, nor does it authorize any injury to private property or any invasion of personal rights, nor any infringement of Federal, State, or local laws or regulations.

TVA-Watts-Bar Nuclear Plant NPDES Permit TNO020168 Page 18 of 29

7. Severability The provisions of this permit are severable. If any provision of this permit due to any circumstance, is held invalid, then the application of such provision to other circumstances and to the remainder of this permit shall not be affected thereby.

8. Other Information If the permittee becomes aware that he failed to submit any relevant facts in a permit application, or submitted incorrect information in a permit application or in any report to the Director, then he shall promptly submit such facts or information.

B.

CHANGES AFFECTING THE PERMIT

1. Planned Changes The permittee shall give notice to the Director as soon as possible of any planned physical alterations or additions to the permitted facility. Notice is required only when:

a. The alteration or addition to a permitted facility may meet one of the criteria for determining whether a facility is a new source in 40 CFR 122.29(b); or.

b. The alteration or addition could significantly change the nature or increase the quantity of pollutants discharged. This notification applies to pollutants which are subject neither to effluent limitations in the permit, nor to notification requirements under 40 CFR 122.42(a)(1).

2. Permit Modification, Revocation, or Termination

a. This permit may be modified, revoked and reissued, or terminated for cause as described in 40 CFR 122.62 and 122.64, Federal Register, Volume 49, No. 188 (Wednesday, September 26, 1984), as amended.

b. The permittee shall furnish to the Director, within a reasonable time, any information which the Director may request to determine whether cause exists for modifying, revoking and reissuing, or terminating this permit, or to determine compliance with this permit. The permittee shall also furnish to the Director, upon request, copies of records required to be kept by this permit.

c. If any applicable effluent standard or prohibition (including any schedule of compliance specified in such effluent standard or prohibition) is established for any toxic pollutant under Section 307(a) of the Federal Water Pollution Control Act, as amended, the Director shall modify or revoke and reissue the permit to conform to the prohibition or to the effluent standard, providing that the effluent standard is more stringent than the limitation in the permit on the toxic pollutant. The permittee shall comply with these effluent standards or prohibitions within the time provided in. the regulations that establish these standards or prohibitions, even if the permit has not yet been modified or revoked and reissued to incorporate the requirement.

TVA-Watts-Bar Nuclear Plant NPDES Permit TN0020168 Page 19 of 29

d. The filing of a request by the permittee for a modification, revocation, reissuance, termination, or notification of planned changes or anticipated noncompliance does not halt any permit condition.

3. Change of Ownership This permit may be transferred to another party (provided there are neither modifications to the facility or its operations, nor any other changes which might affect the permit limits and conditions contained in the permit) by the permittee if:

a. The permittee notifies the Director of the proposed transfer at least 30 days in advance of the proposed transfer date;

b. The notice includes a written agreement between the existing and new permittee's containing a specified date for transfer of permit responsibility, coverage, and liability between them; and

c. The Director, within 30 days, does not notify the current permittee and the new permittee of his intent to modify, revoke or reissue, or terminate the permit and to require that a new application be filed rather than agreeing to the transfer of the permit.

Pursuant to the requirements of 40 CFR 122.61, concerning transfer of ownership, the permittee must provide the following information to the division in their formal notice of intent to transfer ownership: 1) the NPDES permit number of the subject permit; 2) the effective date of the proposed transfer; 3) the name and address of the transferor; 4) the name and address of the transferee; 5) the names of the responsible parties for both the transferor and transferee; 6) a statement that the transferee assumes responsibility for the subject NPDES permit; 7) a statement that the transferor relinquishes responsibility for the subject NPDES permit; 8) the signatures of the responsible parties for both the transferor and transferee pursuant to the requirements of 40 CFR 122.22(a), "Signatories to permit applications"; and, 9) a statement regarding any proposed modifications to the facility, it's operations, or any other changes which might affect the permit limits and conditions contained in the permit.

4. Change of Mailing Address The permittee shall promptly provide to the Director written notice of any change of mailing address. In the absence of such notice the original address of the permittee shall be assumed to be correct.

C.

NONCOMPLIANCE

1. Effect of Noncompliance All discharges shall be consistent with the terms and conditions of this permit. Any permit noncompliance constitutes a violation of applicable State and Federal laws and is grounds for enforcement action, permit termination, permit modification, or denial of permit reissuance.

TVA-Watts-Bar Nuclear Plant NPDES Permit TN0020168 Page 20 of 29

2. Reporting of Noncompliance

a. 24-Hour Reporting In the case of any noncompliance which could cause a threat to public drinking supplies, or any other discharge which could constitute a threat to human health or the environment, the required notice of non-compliance shall be provided to the Division of Water Pollution Control in the appropriate Environmental Assistance Center within 24-hours from the time the permittee becomes aware of the circumstances. (The Environmental Assistance Center should be contacted for names and phone numbers of environmental response personnel).

A written submission must be provided within five days of the time the permittee becomes aware of the circumstances unless this requirement is waived by the Director on a case-by-case basis. The permittee shall provide the Director with the following information:

i.

A description of the discharge and cause of noncompliance; ii. The period of noncompliance, including exact dates and times or, if not corrected, the anticipated time the noncompliance is expected to continue; and Ii. The steps being taken to reduce, eliminate, and prevent recurrence of the noncomplying discharge.

b. Scheduled Reporting For instances of noncompliance, which are not reported under subparagraph 2.a.

above, the permittee shall report the noncompliance on the Discharge Monitoring Report. The report shall contain all information concerning the steps taken, or planned, to reduce, eliminate, and prevent recurrence of the violation and the anticipated time the violation is expected to continue.

3.

Overflow

a. "Overflow," means the discharge to land or water of wastes from any portion of the collection, transmission, or treatment system other than through permitted outfalls.

b.

Overflows are prohibited.

c. The permittee shall operate the collection system so as to avoid overflows. No new or additional flows shall be added upstream of any point in the collection system, which experiences chronic overflows (greater than 5 events per year) or would otherwise overload any portion of the system.

d. Unless there is specific enforcement action to the contrary, the permittee is relieved of this requirement after: 1) an authorized representative of the Commissioner of the Department of Environment and Conservation has approved an engineering report and construction plans and specifications prepared in accordance with accepted engineering practices for correction of the problem; 2) the correction work is underway; and 3) the cumulative, peak-design, flows potentially added from new connections and line extensions upstream of any chronic overflow point are less than or proportional to the amount of inflow and infiltration removal documented upstream of that point. The inflow

TVA-Watts-Bar Nuclear Plant NPDES Permit TN0020168 Page 21 of 29 and infiltration reduction must be measured by the permittee using practices that are customary in the environmental engineering field and reported in an attachment to a Monthly Operating Report submitted to the local TDEC Environmental Assistance Center. The data measurement period shall be sufficient to account for seasonal rainfall patterns and seasonal groundwater table elevations.

e. In the event that more than five (5) overflows have occurred from a single point in the collection system for reasons that may not warrant the self-imposed moratorium or completion of the actions identified in this paragraph, the permittee may request a meeting with the Division of Water Pollution Control EAC staff to petition for a waiver based on mitigating evidence.

4. Upset

a. "Upset," means an exceptional incident in which there is unintentional and temporary noncompliance with technology-based effluent limitations because of factors beyond the reasonable control of the permittee.

An upset does not include noncompliance to the extent caused by operational error, improperly designed treatment facilities, inadequate treatment facilities, lack of preventive maintenance, or careless or improper operation.

b. An upset shall constitute an affirmative defense to an action brought for noncompliance with such technology-based permit effluent limitations if the permittee demonstrates, through properly signed, contemporaneous operating logs, or other relevant evidence that:

i.

An upset occurred and that the permittee can identify the cause(s) of the upset; ii. The permitted facility was at the time being operated in a prudent and workman-like manner and in compliance with proper operation and maintenance procedures; iii. The permittee submitted information required under "Reporting of Noncompliance" within 24-hours of becoming aware of the upset (if this information is provided orally, a written submission must be provided within five days); and iv. The permittee complied with any remedial measures required under "Adverse Impact."

5. Adverse Impact The permittee shall take all reasonable steps to minimize any adverse impact to the waters of Tennessee resulting from noncompliance with this permit, including such accelerated or additional monitoring as necessary to determine the nature and impact of the noncomplying discharge. It shall not be a defense for the permittee in an enforcement action that it would have been necessary to halt or reduce the permitted activity in order to maintain compliance with the conditions of this permit.

TVA-Watts-Bar Nuclear Plant NPDES Permit TN0020168 Page 22 of 29

6. Bypass

a. "Bypass" is the intentional diversion of wastewater away from any portion of a treatment facility. "Severe property damage" means substantial physical damage to property, damage to the treatment facilities, which would cause them to become inoperable, or substantial and permanent loss of natural resources, which can reasonably be expected to occur in the absence of a bypass. Severe property damage does not mean economic loss caused by delays in production.

b. Bypasses are prohibited unless the following 3 conditions are met:

i.

The bypass is unavoidable to prevent loss of life, personal injury, or severe property damage; ii.

There are not feasible alternatives to bypass, such as the use of auxiliary treatment facilities, retention of untreated wastes, or maintenance during normal periods of equipment downtime. This condition is not satisfied if adequate back-up equipment should have been installed in the exercise of reasonable engineering judgment to prevent a bypass, which occurred during normal periods of equipment downtime or preventative maintenance; iii.

The permittee submits notice of an unanticipated bypass to the Division of Water Pollution Control in the appropriate environmental assistance center within 24-hours of becoming aware of the bypass (if this information is provided orally, a written submission must be provided within five days). When the need for the bypass is foreseeable, prior notification shall be submitted to the Director, if possible, at least 10 days before the date of the bypass.

c. Bypasses not exceeding limitations are allowed only if the bypass is necessary for essential maintenance to assure efficient operation.

All other bypasses are prohibited. Allowable bypasses not exceeding limitations are not subject to the reporting requirements of 6.b.iii, above.

7. Washout

a. For domestic wastewater plants only, a "washout" shall be defined as loss of Mixed Liquor Suspended Solids (MLSS) of 30.00% or more. This refers to the MLSS in the aeration basin(s) only. This does not include MLSS decrease due to solids wasting to the sludge disposal system. A washout can be caused by improper operation or from peak flows due to infiltration and inflow.

b. A washout is prohibited. If a washout occurs, the permittee must report the incident to the Division of Water Pollution Control in the appropriate Environmental Assistance Center within 24-hours by telephone. A written submission must be provided within 5 days. The washout must be noted on the discharge monitoring report. Each day of a washout is a separate violation.

TVA-Watts-Bar Nuclear Plant NPDES Permit TN0020168 Page 23 of 29 D.

LIABILITIES

1. Civil and Criminal Liability Except as provided in permit conditions for "Bypassing," "Overflow," and "Upset," nothing in this permit shall be construed to relieve the permittee from civil or criminal penalties for noncompliance. Notwithstanding this permit, the permittee shall remain liable for any damages sustained by the State of Tennessee, including but not limited to fish kills and losses of aquatic life and/or wildlife, as a result of the discharge of wastewater to any surface or subsurface waters. Additionally, notwithstanding this Permit, it shall be the responsibility of the permittee to conduct its wastewater treatment and/or discharge activities in a manner such that public or private nuisances or health hazards shall not be created.

2. Liability Under State Law Nothing in this permit shall be construed to preclude the institution of any legal action or relieve the permittee from any responsibilities, liabilities, or penalties established pursuant to any applicable State law or the Federal Water Pollution Control Act, as amended.

I PART II I

OTHER REQUIREMENTS A.

TOXIC POLLUTANTS

.The permittee shall notify the Division of Water Pollution Control as soon as it knows or has reason to believe:

1. That any activity has occurred or will occur which would result in the discharge on a routine or frequent basis, of any toxic substance(s) (listed at 40 CFR 122, Appendix D, Table II and I11) which is not limited in the permit, if that discharge will exceed the highest of the following "notification levels":

a. One hundred micrograms per liter (100 ug/I);

b. Two hundred micrograms per liter (200 ug/I) for acrolein and acrylonitrile; five hundred micrograms per liter (500 ug/I) for 2,4-dinitrophenol and for 2-methyl-4,6-dinitrophenol; and one milligram per liter (1 mg/L) for antimony;

c. Five (5) times the maximum concentration value reported for that pollutant(s) in the permit application in accordance with 122.21 (g)(7); or

d. The level established by the Director in accordance with 122.44(f).

2. That any activity has occurred or will occur which would result in any discharge, on a non-routine or infrequent basis, of a toxic pollutant which is not limited in the permit, if that discharge will exceed the highest of the following "notification levels":

TVA-Watts-Bar Nuclear Plant NPDES Permit TN0020168 Page 24 of 29

a. Five hundred micrograms per liter (500 ug/l);

b. One milligram per liter (1 mg/L) for antimony;

d.

Ten (10) times the maximum concentration value reported for that pollutant in the permit application in accordance with 122.21 (g)(7); or

d. The level established by the Director in accordance with 122.44(f).

B.

REOPENER CLAUSE If an applicable standard or limitation is promulgated under Sections 301(b)(2)(C) and (D), 304(B)(2), and 307(a)(2) and that effluent standard or limitation is more stringent than any effluent limitation in the permit or controls a pollutant not limited in the permit, the permit shall be promptly modified or revoked and reissued to conform to that effluent standard or limitation.

C.

PLACEMENT OF SIGNS Within sixty (60) days of the effective date of this permit, the permittee shall place and maintain a sign at each outfall and any bypass/overflow point in the collection system. For the purposes of this requirement, any bypass/overflow point that has discharged five (5) or more times in the last year must be so posted. The sign(s) should be clearly visible to the public from the bank and the receiving stream or from the nearest public property/right-of-way, if applicable.

The minimum sign size should be two feet by two feet (2' x 2') with one-inch (1") letters. The sign should be made of durable material and have a white background with black letters.

The sign(s) are to provide notice to the public as to the nature of the discharge and, in the case of the permitted outfalls, that the discharge is regulated by the Tennessee Department of Environment and Conservation, Division of Water Pollution Control. The following is given as an example of the minimal amount of information that must be included on the sign:

TREATED INDUSTRIAL WASTEWATER and STORM WATER RUNOFF TVA - Watts Bar Nuclear Plant (Permittee's Phone Number)

NPDES Permit NO. TN0020168 TENNESSEE DIVISION OF WATER POLLUTION CONTROL 1-888-891-8332 ENVIRONMENTAL FIELD OFFICE - CHATTANOOGA D.

ANTIDEGRADATION Pursuant to the Rules of the Tennessee Department of Environment and Conservation, Chapter 1200-4-3-.06, titled "Tennessee Antidegradation Statement," and in consideration of the Department's directive in attaining the greatest degree of effluent reduction achievable in municipal, industrial, and other wastes, the permittee shall further be required, pursuant to the terms and conditions of this permit, to comply with the effluent limitations and schedules of compliance required to implement applicable water quality standards, to comply

TVA-Watts-Bar Nuclear Plant NPDES Permit TN0020168 Page 25 of 29 with a State Water Quality Plan or other State or Federal laws or regulations, or where practicable, to comply with a standard permitting no discharge of pollutants.

E. BIOMONITORING REQUIREMENTS, CHRONIC The permittee shall conduct a 3-Brood Ceriodaphnia dubia Survival and Reproduction Test and a 7-Day Fathead Minnow (Pimephales promelas) Larval Survival and Growth Test on the same samples of final effluent from Outfalls 101, 102, and 113.

The measured endpoint for toxicity shall be the inhibition concentration causing 25%

reduction (IC25) in survival, reproduction, or growth of the test organisms. The IC25 shall be determined based on a 25% reduction as compared to the controls. The average reproduction and growth responses shall be determined based on the number of Ceriodaphnia dubia or Pimephales promelas larvae used to initiate the test. A separate statistical analysis based on survival information is not required.

Test shall be conducted and its results reported based on appropriate replicates of a total of five serial dilutions and a control, using the percent effluent dilutions as presented in the following table:

Outfalls 101 & 102 Serial Dilutions for Whole Effluent Toxicity (WET) Testing 4XPL 2 X PL Permit Limit 0.50 X PL 0.25 X PL Control (PL)

% effluent 11.2 5.6 2.8 1.4 0.7 0

Outfall 113 Serial Dilutions for Whole Effluent Toxicit WET) Testing Permit Limit 4 X PL 2 X PL (PL) 0.50 X PL 0.25 X PL Control

% effluent 26.8 13.4 6.7 3.4 1.68 0

The dilution/control water used shall be a moderately hard water as described in Short-Term Methods for Estimating the Chronic Toxicity of Effluents and Receiving Water to Freshwater Organisms, EPA-821-R-02-013 (or the most current edition). Results from a chronic standard reference toxicant quality assurance test for each species tested shall be submitted with the discharge monitoring report. Reference toxicant tests shall be conducted as required in EPA-821-R-02-013 (or the most current edition). Additionally, the analysis of this multi-concentration test shall include review of the concentration-response relationship to ensure that calculated test results are interpreted appropriately.

Toxicity will be demonstrated if the IC25 is less than the permit limit indicated for each outfall in the above table(s). Toxicity demonstrated by the tests specified herein constitutes a violation of this permit.

However, if raw water intake samples (tested concurrently with the effluent samples) are shown to be toxic enough to represent a test failure (100 percent samples statistically less than controls using t-tests and minnow growth or daphnid reproduction is 25

TVA-Watts-Bar Nuclear Plant NPDES Permit TN0020168 Page 26 of 29 percent less than controls) and if effluent toxicity is not statistically greater than calculated intake toxicity, the effluent toxicity test in question will be considered invalid. In the event these two above described conditions occur, the toxicity test shall be repeated according to the schedule requirements for test failure.

Effluent toxicity that is not consistent with the intake toxicity conditions specified above constitutes a violation of this permit.

If pathogens are demonstrated to be the source of toxicity to Pimephales promelas in the intake water, the permittee may be allowed to treat effluent samples for toxicity testing on Pimephales promelas with UV radiation only in accordance with prior written approval from the Division.

All tests will be conducted using a minimum of three 24-hour flow-proportionate composite samples of final effluent (e.g., collected on days 1, 3 and 5). If, in any control more than 20% of the test organisms die in 7 days, the test (control and effluent) is considered invalid and the test shall be repeated within 30 days of the date the initial test is invalidated. Furthermore, if the results do not meet the acceptability criteria of section 4.9.1, EPA-821-R-02-013 (or the most current edition), or if the required concentration-response review fails to yield a valid relationship per guidance contained in Method Guidance and Recommendations for Whole Effluent Toxicity (WET) Testing, EPA-821-B-00-004 (or the most current edition), that test shall be repeated. Any test initiated but terminated before completion must also be reported along with a complete explanation for the termination.

The toxicity tests specified herein shall be conducted twice a year (2/Year) for Outfalls 101, 102, and 113, and frequency and results reporting will be governed by the TDEC-approved Biocide/Corrosion Treatment Plan (B/CTP).

In the event of a test failure, the permittee must start a follow-up test within 2 weeks and submit results from a follow-up test within 30 days from obtaining initial WET testing results.

The follow-up test must be conducted using the same serial dilutions as presented in the corresponding table(s) above. The follow-up test will not negate an initial failed test. In addition, the failure of a follow-up test will constitute a separate permit violation, which must also be reported.

In the event of 2 consecutive test failures or 3 test failures within a 12 month period for the same outfall, the permittee must initiate a Toxicity Identification Evaluation/Toxicity Reduction Evaluation (TIE/TRE) study within 30 days and so notify the Division by letter. This notification shall include a schedule of activities for the initial investigation of that outfall. During the term of the TIE/TRE study, the frequency of biomonitoring shall be once every three months.

Additionally, the permittee shall submit progress reports once every three months throughout the term of the TIE/TRE study. The toxicity must be reduced to allowable limits for that outfall within 2 years of initiation of the TIE/TRE study. Subsequent to the results obtained from the TIE/TRE studies, the permittee may request an extension of the TIEiTRE study period if necessary to conduct further analyses. The final determination of any extension period will be made at the discretion of the Division.

The TIE/TRE study may be terminated at any time upon the completion and submission of 2 consecutive tests (for the same outfall) demonstrating compliance. Following the completion of TIE/TRE study, the frequency of monitoring will return to a regular schedule, as defined previously in this section as well in Part I of the permit. During the course of the TIE/TRE study, the permittee will continue to conduct toxicity testing of the outfall being investigated at the frequency of once every three months but will not be required to perform follow-up tests for that outfall during the period of TIE/TRE study.

TVA-Watts-Bar Nuclear Plant NPDES Permit TN0020168 Page 27 of 29 Test procedures, quality assurance practices, determinations of effluent survival/reproduction and survival/growth values, and report formats will be made in accordance with Short-Term Methods for Estimating the Chronic Toxicity of Effluents and Receiving Water to Freshwater Organisms, EPA-821-R-02-013, or the most current edition.

Results of all tests, reference toxicant information, copies of raw data sheets, statistical analysis and chemical analyses shall be compiled in a report. The report will be written in accordance with Short-Term Methods for Estimating the Chronic Toxicity of Effluents and Receiving Water to Freshwater Organisms, EPA-821-R-02-013, or the most current edition.

Two copies of biomonitoring reports (including follow-up reports) shall be submitted to the division. One copy of the report shall be submitted along with the discharge monitoring report (DMR). The second copy shall be submitted to the local Division of Water Pollution Control office address:

Environmental Field Off ice-Chattanooga Division of Water Pollution Control 540 McCallie Avenue, Suite 550 Chattanooga, TN 37402-2013 F. BIOCIDE/CORROSION TREATMENT PLAN The permittee shall not conduct treatments of intake or process waters under this permit using biocides, dispersants, surfactants, corrosion inhibiting chemicals, or detoxification chemicals except in accordance with conditions specified under the written B/CTP [plan] which has been given prior approval by the Division of Water Pollution Control (DWPC) prior to the effective date of this permit, or subsequent revisions that are approved by the DWPC. WET frequency and results reporting will be governed by the B/CTP.

G. 316(B)

EPA published a draft of the revised Phase II 316(b) regulations on April 20, 2011 which is scheduled to be final not later than July 2012. This permit may be reopened to address new 316(b) compliance requirements upon issuance of a final rule or guidance by EPA.

TVA-Watts-Bar Nuclear Plant NPDES Permit TN0020168 Page 28 of 29 I

PART IV I

STORM WATER POLLUTION PREVENTION PLAN Storm water runoff associated with industrial activity that is not discharged to the receiving stream through Outfalls 101 and 102 are currently authorized under the Tennessee Storm Water Multi-Sector General permit for Industrial Activities (TMSP), Permit Number TNR051343.

The TMSP requires development, implementation, and routine evaluation and updating of a storm water pollution prevention plan (SWPPP). The permittee shall ensure that the appropriate pollution prevention measures are identified in the SWPPP to also minimize the discharge of pollutants in storm water or from ancillary activities via Outfalls 101 and 102. Any necessary plan modifications shall be completed in accordance with the schedules set forth in the TMSP.

The discharger will develop, document and maintain a storm water pollution prevention plan (SWPPP) pursuant to the requirements as set forth in the Tennessee Multi-Sector General Permit for Industrial Activities, Sector 0, "Storm Water Discharges Associated With Industrial Activity From Steam Electric Power Generating Facilities", Part 3, "Storm Water Pollution Prevention Plan Requirements." The plan shall be signed by either a principal executive officer of a corporation, the owner or proprietor of a sole proprietorship, or a partner or general partner of a partnership.

SEF TN0020168.0OC

TVA-Watts-Bar Nuclear Plant NPDES Permit TN0020168 Page 29 of 29 ADDENDUM TO RATIONALE TVA - Watts Bar Nuclear Plant PERMIT NO. TN0020168 June 17, 2011 Addendum prepared by: Ms. Souraya Fathi This Rationale has been revised since it was public noticed on April 18, 2011, to incorporate comments received by EPA and TVA - Watts Bar Nuclear Plant.

In a letter prepared by Ms. Cynthia M. Anderson, TVA, dated May 9, 2011, TVA - Watts Bar Nuclear Plant submitted comments on the draft NPDES Permit No. TN0020168. These comments have been addressed in the final permit and also been incorporated into the Rationale. Most all of the comments were minor changes and were either typographical errors or an oversight from the permit writer.

EPA's comments on the draft were received electronically on April 19, 2011, and were addressed and incorporated in the final permit.

SEF Permit Addendum TNO020168.DOC

TVA-Watts Bar Nuclear Plant (Rationale)

NPDES Permit TNO020168 Page R-1 of R-57 I

RATIONALE I

TVA - Watts Bar Nuclear Plant NPDES PERMIT NO. TN0020168 Spring City, Rhea County, Tennessee Permit Writers: Ms. Souraya Fathi I.

DISCHARGER TVA - Watts Bar Nuclear Plant Hwy 68 Nuclear Plant Road Spring City, Rhea County, Tennessee Official Contact Person:

Mr. Don Grissette Vice President - Watts Bar Nuclear Plant (423) 751-3361 Nature of Business:

Production of electric power by thermonuclear fission and other associated operations SIC Code(s): 4911 Industrial Classification:

Primary Discharger Rating:

Major II.

PERMIT STATUS Issued: June 04, 2010 Last modified February 08, 2005 Expired: December 31, 2011 Application for Modification Received: August 18, 2010 Watershed Scheduling Environmental Assistance Center: Chattanooga Primary Longitude:

-84.785833 Primary Latitude: 35.593333 Hydrocode: 6020001 Watershed Group. 3 Watershed Identification: Tennessee River (Meigs & Rhea County)

Target Reissuance Year: 2011

TVA-Watts Bar Nuclear Plant (Rationale)

NPDES Permit TN0020168 Page R-2 of R-57 III.

FACILITY DISCHARGES AND RECEIVING WATERS TVA - Watts Bar Nuclear Plant discharges cooling water, storm water and other treated wastewaters to the Tennessee River ( Chickamauga Reservoir) just downstream of Watts Bar Dam. The facility also discharges treated sanitary wastewater, storm water and other treated wastewaters to the Yellow Creek embayment of Chickamauga Reservoir.

WBN is located on the right descending (west) bank of upper Chickamauga Reservoir at Tennessee River Mile (TRM) 528 approximately 1.9 miles downstream of Watts Bar Hydroelectric Dam (WBH; TRM 529.9) and one mile downstream of the idled Watts Bar Fossil Plant (Figure 1). Commercial operation of WBN Unit 1 began on May 27, 1996 and is designed for a net electrical output of 1,160 megawatts (MW; gross electrical output of 1,218 MW). A startup and operation of Unit 2 is planned in the fall of 2011 with minimal changes to the original plant design.

Cooling water flows from Chickamauga Reservoir through the plant intake channel to the intake pumping station (IPS) located approximately 1.9 miles downstream of Watts Bar Dam at TRM 528. WBN Unit 1 and proposed Unit 2 use closed-cycle cooling such that the cooling water withdrawn at the intake pumping station is to make-up for evaporation and cooling tower blowdown. The intake channel leading to the pumping station has a cross-sectional area of approximately 1,650 ft2 at a Chickamauga Reservoir winter pool elevation of 675 ft mean sea level (msl), and 3,150 ft2 at a summer pool elevation of 682.5 ft msl. This produces average water velocities between approximately 0.03 feet per second (fps) (high pool) and 0.05 fps (low pool) in the intake channel. The IPS includes four gated openings containing a combined gross flow area of approximately 360 ft2, producing an average intake velocity (in front of screen) of about 0.2 fps. At the traveling water screens, the combined unobstructed through-screen area of the flow corresponding to the gated openings is reduced to approximately 140 ft2, producing an average through-screen velocity of approximately 0.6 fps. The average flowrate at the IPS for WBN Unit lis approximately 80 cubic feet per second (cfs), or 0.3% of the long-term average river flow (27,000 cfs) past the plant.

With the operation of both Unit 1 and proposed Unit 2, intake (in front of screen) and through-screen velocities are projected to be 0.3 fps and 0.8 fps, respectively. The average flowrate at the IPS during operation of both units is expected to be approximately 116 cfs, or 0.4% of the long-term average river flow past the plant of approximately 27,000 cfs.

Appendix 1 summarizes facility discharges and the receiving stream information for seven outfalls, numbered 101, 102, 103, 107, 113, and 114. There are three (3) main outfalls (Nos. 101,102, and 113) which discharge directly to waters of the state. Two (2) other outfalls (Nos. 103 and 107) are internal discharges that contribute to the main outfalls, and outfalls 101 and 102 also provide stormwater runoff relief. Internal discharge Outfall 114 is designated as the supplemental condenser cooling water (SCCW) traveling screen backwash outfall. Each of the six (6) outfalls is discussed in more detail as follows:

Outfall 101 Outfall 101 receives wastewater from two primary sources, the Cooling Tower Blowdown Line (45.773 MGD) and the Yard Holding Pond (1.371 MGD). The Watts Bar Nuclear facility utilizes natural draft cooling towers, which recirculate cooling water. In

TVA-Watts Bar Nuclear Plant (Rationale)

NPDES Permit TN0020168 Page R-3 of R-57 order to control build up of dissolved solids, a portion of the recirculated water must be discharged, i.e., cooling tower blowdown. Cooling tower blowdown, at 45.773 MGD, represents the majority of the flow through the Cooling Tower Blowdown Line (due to the nature of the plant operation, this line may also contain once through cooling water from the supplemental condenser cooling water system). The remaining portion (as seen from Appendix 1) is made up of low volume wastes and metal cleaning wastes.

The Yard Holding Pond receives low volume wastes and stormwater runoff from numerous sources and is designed to provide oil skimming, neutralization, and sedimentation treatment. The pond has a volume of approximately 40 million gallons.

However, at times the pond is used as an alternative route to discharge emergency raw cooling water and cooling tower blowdown.

The Cooling Tower Blowdown Line and the Yard Holding Pond discharge conduit are combined and discharged through a pipeline feeding a diffuser located in the Tennessee River at approximate mile 527.9. Discharge through the diffuser is only allowed when there is a minimum of 3500 cubic feet per second (cfs) flow from Watts Bar Dam.

Outfall 102 This outfall represents the emergency discharge overflow weir for the Yard Holding Pond. The overflow weir operates only in the event of an emergency which prevents the use of the blowdown line and diffuser or in the event that the blowdown line and/or diffuser require maintenance. Based on information from the plant permit application, this outfall has not been used in the last three years. In the event of a discharge, the flow would enter an unnamed tributary and flow for approximately 3000 feet to the Tennessee River at mile 527.2. Wastewater sources are the same as for Outfall 101.

Outfall 103 (Internal Monitoring Point)

This outfall represents the discharge from the Low Volume Waste Treatment Pond. The outfall does not discharge directly to waters of the state, but rather discharges to the Yard Holding Pond (Outfall 101). The Low Volume Waste Treatment Pond receives low volume wastes, storm water, and water leakage wastes as described in Appendix 1. This Pond has a total volume of approximately 17 million gallons, but normally is maintained at about 5 million gallons of wastewater. Treatment is provided by oil skimming, sedimentation, and neutralization. The outfall has been established as an internal monitoring point to verify treatment effectiveness and compliance with 40 CFR Part 423 effluent guidelines for low volume wastes.

Outfall 107 (Internal Monitoring Point)

This outfall represents the combined batch release from two holding/treatment ponds known as the Lined Pond and the Unlined Pond. These ponds are used to collect and treat wastes from periodic metal cleaning operations, and a small portion of storm water, diesel generator coolant, and drum rinsing water. Treatment may be provided by chemical addition (when necessary to meet limits) and recirculation/aeration to reduce concentrations of copper, iron, and/or phosphorus prior to discharge to the Yard Holding Pond (Outfall 101). The Lined Pond has an approximate volume of 0.91 million gallons and the Unlined Pond has an approximate volume of 6.5 million gallons. Following

TVA-Watts Bar Nuclear Plant (Rationale)

NPDES Permit TN0020168 Page R-4 of R-57 treatment, the typical scenario is for the Lined Pond to be pumped to the Unlined Pond and the Unlined Pond discharged through Outfall 101. Batch releases are normally confined to periods of 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months or less. Records from February 2006 through February 2011 indicate that about 3 discharges per year occur. The long term average flow from the ponds (including days of zero flow) is 1.94 MGD, however, actual flow during discharge is between 2 and 3 MGD. This internal outfall has been established to verify treatment effectiveness and compliance with 40 CFR Part 423 effluent guidelines for metal cleaning wastes.

Outfall 113 This outfall represents the discharge of Supplemental Condenser Cooling Water, which is primarily non-contact, once through cooling water (due to the nature of the operation of the plant this line can also contain cooling tower blowdown). The flow is the largest discharge from the facility averaging 148.895 MGD. The water is routed to a former discharge point of the TVA - Watts Bar Fossil Plant and discharged at the surface of the Tennessee River at approximate mile 529.2.

Current operation of WBN Unit 1 utilizes the SCCW system through constant gravity flow from above WBH. Completion and operation of Unit 2 will not significantly alter or increase the thermal effluent from the SCCW outfail.

Two hydrothermal surveys and flow pattern surveys were conducted in the vicinity of WBN during May and August 2010, when there were no releases from upstream WBH through generators or spillways to characterize attributes of the SCCW thermal plume. Water temperatures were recorded upstream and downstream of the SCCW discharge during this test to characterize the thermal aspects of the plume.

Drogues, devices designed to drift with surface currents, were deployed at and near the SCCW outfall to track flow patterns and compare flow paths during normal and no generation from Watts Bar Dam.

The conclusion was that maximum temperatures recorded during the May and August no-flow surveys were 74.80F and 82.7rF, respectively.

These maximum seasonal temperatures were lower than the Tennessee State WQC for temperature 86.9°F (30.5°C)

Outfall 114 (Internal Monitoring Point)

This outfall consists of traveling screen backwash from the supplemental condenser cooling water intake. The discharge from the outfall consists only of screen reject and raw water. Flow is estimated at 0.019 MGD.

Tennessee River The TVA - Watts Bar Nuclear Plant has three direct discharges to the Tennessee River (Outfalls 101, 102, and 113). The plant withdraws cooling water and most other water used for industrial processes through the Intake Pumping Station located at Tennessee River mile 528.0. However, the Supplemental Condenser Cooling Water (145.0 MGD discharged through Outfall 113) is withdrawn from above Watts Bar Dam and is discharged to the River below the dam, but above the Plant Intake Pumping Station.

TVA-Watts Bar Nuclear Plant (Rationale)

NPDES Permit TN0020168 Page R-5 of R-57 For purposes of protecting water quality, the Tennessee River below Watts Bar Dam is designated for fish and aquatic life use, recreation use, irrigation use, livestock watering and wildlife use, domestic water supply use, industrial water supply use, and navigation use. The flow of the river is controlled by the Tennessee Valley Authority (TVA) Watts Bar Dam and minimum flows at this location have been developed by the USGS as presented in Appendix 1.

Yellow Creek The Yellow Creek embayment of Chickamauga Lake is designated for fish and aquatic life use, recreation use, irrigation use, and livestock watering and wildlife use.

Low flow conditions in this stream are assumed to be zero.

IV.

APPLICABLE EFFLUENT LIMITATIONS GUIDELINES The Standard Industrial Classification (SIC) code for TVA - Watts Bar Nuclear Plant is 4911, establishments engaged in generation, transmission, and/or distribution of electric energy for sale. Process wastewater discharged through Outfalls 101, 102, 103, 107, and 113 is regulated by 40 CFR Part 423, Steam Electric Power Generating Point Source Category.

This regulation is applicable to discharges resulting from the operation of a generating unit by an establishment primarily engaged in the generation of electricity for distribution or sale which results primarily from a process utilizing fossil-type fuel (coal, oil, or gas) or nuclear fuel in conjunction with a thermal cycle employing the steam water system as the thermodynamic medium.

Appendix 2 lists the applicable best available technology (BAT) and best conventional pollution control technology (BPT) effluent limitations guidelines from 40 CFR Part 423.12 and 423.13.

The guideline numeric limitations are listed for four specific wastewater sources, low volume wastes, metal cleaning wastes, cooling tower blowdown, and once through cooling water. In determining which guideline sources are attributable to each of the seven (7) outfalls, the Part 423.11, Specialized Definitions were used as follows:

The term Low Volume Wastes means, taken collectively as if from one source, wastewater from all sources except those for which specific limitations are otherwise established in this part.

Low Volume Waste sources include, but are not limited to:

wastewaters from wet scrubber air pollution control systems, ion exchange water treatment system, water treatment evaporator blowdown, laboratory and sampling streams, boiler blowdown, floor drains, cooling tower basin cleaning wastes and recirculating house service water systems. Sanitary and air conditioning wastes are not included.

The term chemical Metal Cleaning Wastes means any wastewater resulting from cleaning [with or without chemical cleaning compounds] any metal process equipment including, but not limited to, boiler tube cleaning.

The term Once Through Cooling Water means water passed through the main cooling condensers in one or two passes for the purpose of removing waste heat.

TVA-Watts Bar Nuclear Plant (Rationale)

NPDES Permit TN0020168 Page R-6 of R-57 The term Recirculating Cooling Water means water that is passed through the main condensers for the purpose of removing waste heat, passed through a cooling device for purpose of removing such heat from the water and then passed again, except for blowdown, through the main condenser.

The term Blowdown means the minimum discharge of recirculating water for the purpose of discharging materials contained in the water, the further buildup of which would cause concentration in amounts exceeding limits established by best engineering practices.

The above definitions specifically exclude sanitary wastewater and air conditioning wastes.

For sanitary wastes, Tennessee Effluent Guidelines from Rule 1200-4-5-03 (1) and/or best professional judgment have been applied.

The effluent limitations presented in 40 CFR 423 (see Appendix 2) are normally to be established in the permit as mass limitations by multiplying the flow of the specific waste source times the applicable concentration limit. However, 40 CFR, Part 423.12 (b) (11) and Part 423.13 (g) allow the permitting authority, at its discretion, to substitute concentration limits instead of the mass limitations.

For the TVA-Watts Bar Nuclear Plant permit, only concentration limits will be established.

Also in developing guideline limitations for each outfall, EPA Rule Part 423.12 (12) and Part 423.13(12) is applicable as follows:

In the event that waste streams from various sources are combined for treatment or discharge, the quantity of each pollutant or pollutant property controlled in the BPT/BAT limitation tables attributable to each controlled source shall not exceed the specified limitation for that source.

Utilizing these definitions and the waste source identification provided in the permit application (see summary tables in Appendix 1), the following waste sources and proportions are applied to each outfall as follows:

Guideline Waste Sources and Flows for Two Unit Operations by Outfall Waste Source Flow Outfall No Contributing BPT."BAT W-1aste Source Flow

% Outfall r,.4 G D Total Yard Holding Pond (Metal Cleaning VVaste:

1.371 2 4%

101 Misc Cooling 'uVaters (Low,, Volume W',ates,`

10.62 13 4%

Coolini Tower Blo,,dowl 4

773 79 2%

Total Outfall Flow 57.764 Yard Holding Pond (MVletal Cleaning W'aate, 1 371 2.4%

102 Misc. Cooling Waters (Low Volume,Vates*

10 62 18 4%

Cooling Tcwer Blowdown 458 773 79.2%

Total Outfall Flowv 57.764 103 Low Volume W,.astes 0.3619 100 0%

107 Mvletal Cleaning WVastes 0.031G 100 0%

113 Once Through Coling W¢,ater 148.895 100. 0%"

lupplemental Condenser Cooling '.,'ater Intake Screen 114 backwash 0.019 100 0%

cl,

TVA-Watts Bar Nuclear Plant (Rationale)

NPDES Permit TN0020168 Page R-7 of R-57 Note: Outfall 114 is backwash water and is not considered in the monitoring requirements for this permit.

Where the effluent limitation guideline concentration limits include the same parameter(s) for each source, the allocation of guideline limits by flow is straightforward.

However, where a parameter is limited for one source and not limited for another, some judgment must take place. The approach taken has been to assure that each source complies with its parameter guideline concentration without that source being diluted by other wastewater source(s) for which the parameter is not limited. One means to accomplish this is to utilize internal outfalls, which enable monitoring at a location that is source specific. This approach has been utilized at the Watts Bar Nuclear Plant for Outfalls 103, and 107.

Using the above guidance, the 40 CFR guidelines have been applied to the plant outfalls as shown in Appendix 2 and described as follows:

Outfall 101 Cooling tower blowdown represents approximately 79% of the outfall flow and Low Volume wastes represent 20.8%. Thus the guidelines for Cooling Tower Blowdown and Low Volume Waste will be applied to the total waste stream. The total suspended solids limit and the oil and grease limit applicable to the low volume waste sources is considered applicable to the cooling tower blowdown source as well.

Because the metal cleaning wastes represent only 0.1% of the flow, the guideline limits for this source will not be applied to Outfall 101. Rather, compliance with metal cleaning waste limits will be handled by employing an internal monitoring point (Outfall 107). The applicable BPT and BAT limits are given in Appendix 2.

The flow from Outfall 101 is monitored at Watts Bar Dam, and includes the instrumentation that River Operations uses to measure the discharge through the hydro turbines. A control loop between Watts Bar Dam and WBN automatically closes the Outfall 101 diffuser valves when the hydro discharge at Watts Bar Dam drops below 3500 cfs.

Outfall 102 Since this is an emergency discharge for Outfall 101, the same guidelines apply as for Outfall 101. The limitations are presented in Appendix 2.

Outfall 103 This outfall receives Low Volume Wastes exclusively; therefore, the Low Volume Waste guideline limitations will apply. The limitations are presented in Appendix 2.

Outfall 107 This outfall receives 99.9% Metal Cleaning Wastes and 1 % Low Volume Wastes.

Therefore the Metal Cleaning Waste limitations will be applied as shown in Appendix 2.

Outfall 113

TVA-Watts Bar Nuclear Plant (Rationale)

NPDES Permit TN0020168 Page R-8 of R-57 This outfall receives noncontact supplemental condenser cooling water.

The wastewater is defined by 40 CFR 423 as Once Through Cooling Water. Thus Outfall 113 will be subject to the effluent limitations for the Once Through Cooling Water Source given in 40 CFR Part 423.12 (6) and Part 423.13 (b) (1&2) and shown in Appendix 2.

Outall 114 This outfall has no monitoring requirements, consists of traveling screen backwash from the supplemental condenser cooling water intake.

V.

PREVIOUS PERMIT LIMITS AND MONITORING REQUIREMENTS Appendix 3 lists the permit limitations and monitoring requirements as defined in the previous permit for the seven outfalls.

VI.

HISTORICAL MONITORING AND INSPECTION During the previous permit term, TVA - Watts Bar Nuclear Plant did not have any appreciable difficulty in meeting effluent limitations as outlined in the previous permit. The self monitoring data reported on Discharge Monitoring Report forms during the previous permit term are summarized in Appendix 4.

Any violations of permit limitations that occurred are shown in the tables found in Appendix 4. This information is downloaded from the EPA lCIS database, and statistically summarized.

VII.

NEW PERMIT LIMITS AND MONITORING REQUIREMENTS The proposed new permit limits have been selected by determining a technology-based limit and evaluating if that limit protects the water quality of the receiving stream.

If the technology-based limit would cause violations of water quality, the water quality-based limit is chosen. For this facility the technology-based limit is determined from EPA effluent limitations guidelines applicable to the steam electric power generating point source category (see Part IV); or by way of operational and/or treatability data. Furthermore, effluent limitations in this permit must comply with any approved Total Maximum Daily Load (TMDL) studies. Water quality calculation procedures are explained in this section under the heading: Metals and Toxics.

Appendix 5a through 5e presents the water quality calculations, Appendix 5f presents a comparison of the different limitations, and Appendix 5g lists all proposed effluent limitations and monitoring requirements to be included in the new permit.

The results of the water -quality calculations are compared to the effluent guideline limitations in Appendix 5f and the proposed final permit limitations are presented in Appendix 5g. The effluent characteristics limited in the permit and monitoring requirements are discussed

TVA-Watts Bar Nuclear Plant (Rationale)

NPDES Permit TN0020168 Page R-9 of R-57 individually by outfall as follows as well as certain other permit conditions for the facility that are not outfall specific:

Outfall 101 Flow Monitoring of flow quantifies the load of pollutants to the stream. Flow shall be reported in Million Gallons per Day (MGD). Measurement frequency shall be continuous by recorder. These requirements are unchanged from the previous permit.

Oil and Grease An oil and grease limitation is applied to this outfall because of the significant presence of low volume wastes. The limits are established at 15 mg/I monthly average and 20 mg/I daily maximum in accordance with BPT technology-based limits from 40 CFR Part 423.12 (b) (3).

According to the State of Tennessee Water Quality Standards for the protection of Fish

& Aquatic Life [Chapter 1200-4-3-.03(3) (c)], there shall be no distinctly visible solids, scum, foam, oily slick, or the formation of slimes, bottom deposits or sludge banks of such size or character that may be detrimental to fish and aquatic life in the receiving stream. The permit writer is selecting technology-based limits for oil and grease of 15 mg/L as a monthly average concentration and 20 mg/L as a daily maximum concentration. In addition, the permit shall contain language prohibiting visible floating scum, oil or other matter in the wastewater discharge. Sample type shall be grab. These limits are unchanged from the previous permit. Monitoring frequency in the new permit shall remain at once per month, however, monitoring for oil and grease apply only when the turbine building sump is aligned to bypass Internal Monitoring Points 103 and 107 where monitoring these parameters is required. Sample type shall be grab.

Total Suspended Solids (TSS)

Total Suspended Solids is a general indicator of the quality of a wastewater and shall be limited in this permit. The technology-based limit of 30 mg/I monthly average and 100 mg/I daily maximum is taken from 40 CFR Part 423, Subpart 423.12 (b) (3), the BPT limitations applicable to low volume wastes.

The State of Tennessee Water Quality Standards for the protection of Fish & Aquatic Life [Chapter 1200-4-3-.03(3) (c)] state there shall be no distinctly visible solids, scum, foam, oily slick, or the formation of slimes, bottom deposits or sludge banks of such size or character that may be detrimental to fish and aquatic life in the receiving stream.

The permit writer believes the limit of 30 mg/L monthly average, and 100 mg/L daily maximum concentrations shall provide protection of water quality in the receiving stream. The sampling frequency shall be once per month, however, monitoring for TSS apply only when the turbine building sump is aligned to bypass Internal Monitoring

TVA-Watts Bar Nuclear Plant (Rationale)

NPDES Permit TN0020168 Page R-10 of R-57 Points 103 and 107 where monitoring these parameters is required. Sample type shall be grab.

Technology-based BPT effluent limitations from 40 CFR, Part 423, Subpart 423.12 (b)

(1) establish a pH limitation of 6.0 to 9.0 for all discharges from this facility.

According to the State of Tennessee Water Quality Standards [Chapter 1200-4-3-.03(3)

(b)], the pH for the protection of Fish and Aquatic Life shall lie within the range of 6.5 to 9.0 and shall not fluctuate more than 1.0 unit in this range over a period of 24-hours.

Appendix 5d presents calculations that show that the combined discharge from Outfalls 101 and 113 will not cause the pH of the Tennessee River to fall below the 6.5 minimum pH standard. Considering that the receiving stream will provide pH buffering, effluent limitations for pH shall be retained in a range 6.0 to 9.0. The sampling frequency shall be once per month, however, monitoring for pH apply only when the turbine building sump is aligned to bypass Internal Monitoring Points 103 and 107 where monitoring these parameters is required. The sample type shall be grab.

Total Residual Chlorine Technology-based (BAT) limits of 0.2 mg/L monthly average and 0.5 mg/L daily maximum limits apply to free available chlorine in cooling tower blowdown in accordance with 40 CFR, part 423, Subpart 423.13 (b) (1). The total residual chlorine test includes all chlorine species measured in the free available chlorine test as well as other chlorine compounds such as chloroamines.

Thus the permit writer has substituted the total chlorine residual test in place of the free available chlorine test for compliance with the 40 CFR limitations.

The previous permit has a limit of 0.1 mg/L monthly average and 0.1 mg/L daily maximum for Outfall 101. The 0.1 mg/I concentration is greater than the acute criteria for TRC at 0.019 mg/I. Because of the large volume of water discharged by TVA there exists the potential for exposure of aquatic life to toxic concentrations of chlorine in the discharge. However, since chlorine residual reacts and dissipates rapidly upon mixing into the ambient waters, the concentrations above the acute value should not exist for any significant area. Thus the 0.1 mg/I concentration limit for TRC is considered to be protective of water quality in the Tennessee River at a flow from Outfall 113 of 148.958 MGD and from Outfall 101 of 57.76 MGD.

The monthly average limit of 0.10 mg/L and the daily maximum limit of 0.10 mg/L for Total Residual Chlorine (TRC) shall be retained in the new permit. The limits are based on the protection of water quality in the Tennessee River during periods when Outfall 101 and Outfall 113 exceed their long term average flow and based on antibacksliding provisions of 40 CFR Part 122.44 (I). These limits are also determined to be appropriate because the facility is discharging TRC in excess of 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months per day in accordance with the approved Biocide/Corrosion Treatment Plan.

Chromium Outfall 101 is primarily composed of cooling tower blowdown.

40 CFR Part 423.13 provides BAT effluent limitations for total chromium applicable to the discharge of cooling tower blowdown wastewater discharges.

The limits are 0.2 mg/L monthly

TVA-Watts Bar Nuclear Plant (Rationale)

NPDES Permit TNO020168 Page R-11 of R-57 average and 0.2 mg/L daily maximum.

The Watts Bar Nuclear Plant does not use corrosion control chemicals or biocides containing chromium at the facility. Sampling data submitted with the application demonstrated that chromium could not be detected in the effluent at a detection limit of 0.001 mg/L. Thus chromium will be included as a permit limit however, monitoring for chromium is waived per 40 CFR Part 122.44 (a)(2)(i). A statement shall be placed in the permit as follows: The use of water treatment chemicals containing chromium is prohibited under this permit.

Zinc Outfall 101 is primarily composed of cooling tower blowdown.

40 CFR Part 423.13 provides BAT effluent limitations for total zinc applicable to cooling tower blowdown wastewater discharges. The limits are 1.0 mg/L monthly average and 1.0 mg/L daily maximum. The TVA - Watts Bar Nuclear Plant utilizes zinc in corrosion inhibitors for treatment of raw water. TVA's policy is to control the feed of zinc containing chemicals to limit the discharge concentration to 0.2 mg/L or less.

The zinc limit of 1.0 mg/L daily average and 1.0 mg/L daily maximum shall be continued in the new permit.

The corrosion inhibiting chemicals are added to the raw water system, and are recirculated through the condensers and the cooling towers. Thus the concentration of zinc is not expected to be highly variable with time.

Therefore, a measurement frequency of 2/month and sample type of grab should be adequate to characterize zinc in this outfall.

Effluent Temperature Temperature shall be limited according to the State of Tennessee Water Quality Standards for the protection of Fish & Aquatic Life [Chapter 1200-4-3-.03(3)(e)]. It is recognized that the temperature of the cooling water discharge will be greater than the temperature of the water prior to its use for cooling or other purposes. This discharge must not cause the temperature change in the receiving stream to exceed 3°C relative to an upstream control point. Also, this discharge must not cause the temperature of the receiving stream to exceed 30.50C (except as a result of natural causes), and this discharge must not cause the maximum rate of temperature change in the receiving stream to exceed 20C per hour (except as a result of natural causes).

The elevated temperature water of outfall 101 is mixed with the Tennessee River receiving water by being discharged through a diffuser. Instream temperature criteria must be met at the edge of the mixing zone.

The mixing zone is defined for this discharge as being a maximum width of 240 feet (the width of the diffuser) and extending 240 feet downstream.

An operational requirement of the plant is that the diffuser is only operated when 3500 cubic feet per second (CFS) flow is present from the dam. Mathematical modeling of the temperature during mixing was carried out by TVA and was submitted in a report in June 2007 (Completion and Operation of Watts Bar Nuclear Plant Unit 2. The report was based on the 24-hour average for discharge evaluation as specified in the NPDES permit issued in 1993. The modeling assumed both nuclear units in operation and concluded that a steady-state discharge of 38.3 0C under worst case conditions, which included 1) full thermal load from the fossil plant, 2) the worst meteorology and 3) no operation of Watts Bar Hydro facility, would still protect the water quality based on modeling using daily averaging.

A daily average value of 350C was proposed to include a margin of safety.

A continuous discharge at the temperature maximum of 35'C will not exceed water quality outside of the mixing zone

TVA-Watts Bar Nuclear Plant (Rationale)

NPDES Permit TN0020168 Page R-12 of R-57 based on past modeling.

The Division approved a one-hour averaging period for evaluating compliance with temperature criteria in the receiving stream.

A numeric effluent limitation of 350C shall continue as the daily maximum that can be discharged. Measurement frequency shall be continuous and sample type shall be by recorder. These limits are unchanged from the previous permit.

The designs of the diffusers and mixing zone were based on the operation of both Unit 1 and Unit 2; therefore, no changes are anticipated for accommodating the operation of Unit 2. However, TVA will perform studies similar to those performed for Unit 1 to confirm the performance of the diffusers with the operation of two units.

Toxicity Testing 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 Outfall 101.

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 of sensitive aquatic species (coupled with evaluation of new chemical products before they are used) is a reasonable method to evaluate the toxicity impacts of the products in the effluent.

Therefore a whole effluent toxicity testing requirement shall remain in the permit. The calculations of the appropriate dilutions for the test are given in Appendix 5e of the Rationale and Part III of the permit.

The new permit shall require IC25 testing at a wastewater dilution of 2.8%. Monitoring frequency shall be semi-annual, one during oxidizing biocide treatment and one during non-oxidizing biocide treatment. Sample type shall be composite.

Outfall 102 Outfall 102 is an emergency discharge used when the Outfall 101 diffuser cannot be used. Thus the limits for this outfall shall be the same as for Outfall 101.

The new permit limitations for this outfall are unchanged from the previous permit. Sampling frequency and sample type are adjusted for flow and temperature to reflect that continuous monitoring equipment would not be available during an emergency discharge. When thermally loaded effluent is discharged through Outfall 102, all reasonable efforts shall be made to keep flow to a minimum of 3500 cubic feet per second in the receiving waters. If such flow is absent, the permittee shall verify protection of water quality by taking instream temperature measurements.

The new permit shall require IC25 testing at a wastewater dilution of 2.8%. Monitoring frequency shall be semi-annual, only if discharge operated >- 30 days from Jan. - Jun., or Jul. -

Dec. if all toxicity testing has not been completed for Outfall. Sample type shall be composite.

Monitoring for pH, total suspended solids and oil and grease apply only when the turbine building sump is aligned to bypass Internal Monitoring Points 103 and 107 where monitoring these parameters is required.

TVA-Watts Bar Nuclear Plant (Rationale)

NPDES Permit TN0020168 Page R-13 of R-57 Outfall 103 This outfall is an internal monitoring point receiving low volume wastes. Thus the Low Volume Waste technology-based limitations apply.

Flow Monitoring of flow quantifies the load of pollutants to the stream. Flow shall be reported in Million Gallons per Day (MGD) and monitored continuously by recorder.

pH Technology-based BPT effluent limitations from 40 CFR, Part 423.12 (b) (1) establish a pH limitation of 6.0 to 9.0 for all discharges from this facility. Therefore a pH limitation of 6.0 to 9.0 shall apply. Sampling shall be once per month and sample type shall be grab.

Oil and Grease An oil and grease limitation is applied to this outfall because of the significant presence of low volume wastes, which are subject to 40 CFR Part 423 guidelines. The limits are established at 15 mg/I monthly average and 20 mg/I daily maximum in accordance with BPT technology-based limits from 40 CFR Part 423.12 (b) (3).

The permit writer is selecting technology-based limits for oil and grease of 15 mg/L as a monthly average concentration and 20 mg/L as a daily maximum concentration.

The mass limits shall not be retained. Sampling shall be once per month and sample type shall be grab.

Total Suspended Solids (TSS)

Total Suspended Solids is a general indicator of the quality of a wastewater and shall be limited in this permit. The technology-based limit of 30 mg/I monthly average and 100 mg/I daily maximum is taken from 40 CFR Part 423.12 (b) (3), the BPT limitations applicable to Low Volume Wastes. Sampling shall be once per month and sample type shall be grab.

Outfall 107 This outfall is an internal monitoring point incorporated to evaluate compliance with guideline limitations for metal cleaning wastes. These wastes are subject to technology based BPT and BAT guidelines for metal cleaning wastes under 40 CFR Part 423.12(b)(5) and 423.13 (e).

Flow The flow from this outfall occurs as a controlled batch discharge from the Lined and Unlined Ponds. Flow duration is typically about 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months . Historical batch discharge frequency has been about 4 times per year. The flow is calculated by determining change in stage of the ponds.

TVA-Watts Bar Nuclear Plant (Rationale)

NPDES Permit TN0020168 Page R-14 of R-57 Monitoring of flow quantifies the load of pollutants to the stream. Flow shall be reported in Million Gallons per Day (MGD) and monitored each time there is a batch discharge from the ponds through the outfall. Flow frequency shall be once per batch and type measurement shall be calculated.

p__H Technology-based BPT effluent limitations from 40 CFR, Part 423.12 (b) (1) establish a pH limitation of 6.0 to 9.0 for all discharges from this facility. Ph shall be monitored once per batch and sample type shall be grab.

Oil and Grease An oil and grease limitation is applied to this outfall because of the significant presence of metal cleaning wastes.

Concentration limits are established at 15 mg/I monthly average and 20 mg/I daily maximum in accordance with BPT technology-based limits from 40 CFR Part 423.12 (b) (5). The previous permit imposed a monthly average limit of 15 mg/L and a daily maximum limit of 15 mg/L.

Because the wastewater discharging to this outfall is batch treated, it is the permit writer's judgment that each batch can be treated to meet the 15 mg/L concentration.

The average of monthly average values and the maximum value reported from the previous permit monitoring data (see Appendix 4) indicate a consistent value of <5.0 mg/I. Thus the 40 CFR guideline daily maximum limit of 20 mg/I shall not apply and the previous permit limit shall be retained at 15 mg/I monthly average and daily maximum.

Sampling shall be once per batch discharge, and sample type shall be grab.

Total Suspended Solids (TSS)

Total Suspended Solids is a general indicator of the quality of a wastewater and shall be limited in this permit. The technology-based limit of 30 mg/I monthly average and 100 mg/I daily maximum is taken from 40 CFR Part 423.12 (b) (3), the BPT limitations applicable to metal cleaning wastes.

The previous permit provided a monthly average concentration limit of 30 mg/L and a daily maximum concentration limit of 30 mg/L. Sampling frequency shall be once per batch and sample type shall be grab.

Copper, Total Recoverable Technology-based BAT limits are established for copper at 40 CFR Part 423, Subpart 423.13 (e).

The limits are 1.0 mg/L as a monthly average and 1.0 mg/L as a daily maximum. The previous permit contained concentration limits for copper at 1.0 mg/L as monthly average and as a daily maximum.

The new permit shall have a 1.0 mg/L total recoverable copper limit as both the monthly average and daily maximum in accordance with the technology-based guidelines. The mass limits shall not be retained the permit. Sampling frequency shall be once per batch. Because the wastewater comes from large ponds, which should have relatively good equalization of concentration, and to be consistent with other outfall sampling requirements, the sample type shall be grab.

TVA-Watts Bar Nuclear Plant (Rationale)

NPDES Permit TNO020168 Page R-15 of R-57 Iron, Total Recoverable Technology-based BAT limits are established for iron at 40 CFR Part 423.13 (e). The limits are 1.0 mg/L as a monthly average and 1.0 mg/L as a daily maximum.

The previous permit contained concentration limits for iron at 1.0 mg/L.as monthly average and as a daily maximum.

The new permit shall have a 1.0 mg/L total recoverable iron limit as both the monthly average and daily maximum in accordance with the technology-based guidelines.

Because the wastewater comes from large ponds, which should have relatively good equalization of concentration and to be consistent with other outfall sampling requirements, the sample type shall be grab.

Phosphorus, Total Phosphorus is not limited by technology-based guidelines, however it is of water quality concern because of its potential to be used in metal cleaning and its ability to contribute to nuisance aquatic growth in receiving water bodies. The previous permit established a 1.0 mg/L monthly average and a 1.0 mg/L daily maximum concentration and required that phosphorus be monitored once per week only during periods when phosphate cleaning solutions are used. During the past five-year permit period, no phosphorus monitoring was reported at the facility. Because phosphate and phosphate chemicals.

are listed in the permit application as chemicals added to wastewaters reaching Outfall 107 the limits in the previous permit shall be retained.

Monitoring frequency shall be once per batch discharge only during periods when phosphate cleaning solutions are added. Because the wastewater comes from large ponds, which should have relatively good equalization of concentration and to be consistent with other outfall sampling requirements, the sample type shall be grab.

Outfall 113 Outfall 113 discharges Supplemental Condenser Cooling Water (SCCW), which is noncontact, once through cooling water. Once through cooling water is subject to BPT and BAT technology-based limitations under 40 CFR Part 423. A portion of the water discharged through Outfall 113 enters the plant through the intake pumping station (IPS) and is treated with corrosion inhibitors and biocide. The remaining portion is obtained by gravity flow through the intake for the old TVA - Watts Bar Fossil Plant, which withdraws water from Watts Bar Reservoir above Watts Bar Dam.

The proportion of flow from the IPS ranges from approximately 50 to 75 MGD and the remaining portion from Watts Bar Reservoir varies from approximately zero to 110 MGD. The water withdrawn from Watts Bar Lake may be passed through the condensers as once through cooling water, or by using a bypass valve arrangement, may be routed directly to Outfall 113.

Flow The previous permit required flow to be measured on a continuous basis using a recorder. This language shall be retained in the new permit. Should the continuous flow monitoring equipment fail or need to be taken off line for repairs or calibration, the flow shall be measured by staff gage as a backup method until the flow monitoring

TVA-Watts Bar Nuclear Plant (Rationale)

NPDES Permit TN0020168 Page R-16 of R-57 system is brought back on line. The permittee shall take reasonable steps to restore the flow monitoring as soon as possible.

Sudden changes in thermal loading at the plant, i.e., start-up or shutdown, should not be made unless there is discharge from Watts Bar Dam (the exception being changes necessary due to concern for human safety or the environment).

pH The discharge is covered under 40 CFR Part 423 guidelines, which require that the pH be maintained between 6.0 and 9.0.

Calculations given in Appendix 5d show that pH within this range will protect the water quality of the Tennessee River.

Thus pH limitations shall remain 6.0 to 9.0 in the new permit. Sampling frequency shall be once per month and sample type shall be grab.

Total Suspended Solids (TSS)

TSS was included in the previous permit as a monitoring only requirement on a once per month basis. There are no technology based limits or numeric water quality criteria for this parameter. According to Tennessee Water Quality Criteria for the protection of fish and aquatic life [Chapter 1200-4-3-.03(3)], there shall be no distinctly visible solids, scum, foam, oily slick, or the formation of slimes, bottom deposits or sludge banks of such size or character that may be detrimental to aquatic life in the receiving stream.

Monitoring of TSS was required during the previous permit period and the data (see Appendix 4) indicated that the long-term average was 4.0 mg/L. Because the facility is considering adding bentonite to this waste stream as a method of detoxifying biocides, suspended solids monitoring shall remain in the permit. Sampling frequency shall be once per month and sample type shall be grab.

Chlorine, Total Residual Total chlorine residual was limited in the previous permit at 0.092 mg/L as a monthly average and 0.158 as a daily maximum. These limits were based on compliance with instream water quality criteria at a previous permit flow of 192 MGD.

Water quality calculations (presented in Appendix 5b) were performed using the long-term average combined flow of Outfalls 101 and 113 from the current permit application.

These calculations indicate that a monthly average of 0.15 mg/I and a daily maximum of 0.259 mg/L are necessary to comply with water quality criteria.

In the case of the daily maximum value, the 0.2 mg/L BAT limit is more restrictive. Monitoring data from the previous permit period indicates that the long-term average and the maximum TRC concentration have been well below the permit limit (see Appendix 4).

The WBN plant does not add chlorine to the Supplemental Condenser Cooling Water, however chlorine/bromine is potentially present in the outfall due to commingling of cooling tower blowdown. The previous permit limits shall be retained in the permit to comply with the antibacksliding provisions of 40 CFR Part 122.44 (I) and as part of the justification for the exceedance of the 2 hour2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months per day guideline maximum for discharge of TRC (see discussion in Rationale under Additional Limitations, Conditions and Monitoring Requirements). Monitoring frequency shall be retained at once per month and sample type shall be grab.

Dissolved Oxygen, (DO)

TVA-Watts Bar Nuclear Plant (Rationale)

NPDES Permit TN0020168 Page R-17 of R-57 Outfall 113 discharges Supplemental Condenser Cooling Water (SCCW), which is noncontact, once through cooling water to the Tennessee River via a diffuser a mile 529.2. State water quality criteria for this stream requires that dissolved oxygen be 5.0 mg/L or greater. However, because of the high flow of the discharge from this Outfall and the receiving stream the narrative limit to "Report the minimum DO" shall be retained in the new permit. Monitoring frequency shall be once per month and sample type shall be grab.

Toxicity Testing The new permit limit calculations indicate required chronic toxicity testing, IC25, at a dilution factor of 14.8 and a new limit of 6.7%. Measurement frequency shall be retained at semi-annual, one during oxidizing biocide treatment and one during non-oxidizing biocide treatment. Sample type shall be composite.

Temperature, General Tennessee water quality criteria for temperature contains three parts, (1) the discharge shall not cause the temperature of the receiving waters to exceed 30.5 °C instream after mixing, (2) the discharge shall not cause an upstream to downstream temperature change of more than 3 °C, and (3) the discharge shall not cause a rate of temperature change more than 2 0C per hour. All of these conditions must be met at the edge of the mixing zone for the discharge. Further the extent of the mixing zone should be such that fish and aquatic life are not harmed by the discharge.

TVA, as part of a previous permit application process, presented dilution model results, which indicated that the mixing zone of this discharge would allow the free passage of fish while avoiding bottom dwelling species. During periods of Watts Bar dam releases, the heated plume is predicted to stay near the right bank (looking downstream) and extend downstream for a distance of approximately 1000 feet. During periods of dam shutoff, the heated plume is predicted to extend across the entire width of the river.

Normally a "bank to bank" mixing zone is not allowable; however; in this case, only near the surface does the "passive" mixing zone extend across the width of the river.

Temperature and Area of Mixinq Zone The dynamic nature of the river operations in the vicinity of the Outfall 113 discharge and the fact that this channel is not a natural stream lead to issues with defining an appropriate mixing zone.

It is recognized that the temperatures occurring in the Tennessee River at the location of the discharge are the result of a complex set of variables defining the mixing hydrodynamics and heat balance. Many of the variables, such as meteorological inputs, dam turbine releases, dam leakage, flow direction, and reservoir stage are beyond the control of the Watts Bar Nuclear Plant. It is further recognized that applying instantaneous criteria is problematic because of the dynamic nature of the receiving stream (barge traffic, dam operations, rapidly changing plume location, etc.).

For this reason, the Division has determined that compliance with the temperature criteria should not be applied on an instantaneous basis instead compliance will be implemented with the following changes.

TVA-Watts Bar Nuclear Plant (Rationale)

NPDES Permit TN0020168 Page R-18 of R-57 The approach to the mixing zone in this permit will be to define both an active and a passive mixing zone of approximately the same overall size. (See Mixing Zone Diagram, Appendix 5h.) In the passive mixing zone case, corresponding to dam shutoff, the mixing zone geometry will be defined as before.

The passive mixing zone extends across the entire width of the river and extends downstream approximately 1000 feet.

The active mixing zone will apply to other conditions where the plume tends to reside in the right hand side of the river (facing downstream). Monitoring to establish compliance for the active mixing zone will occur 2000 feet downstream of Outfall 113 in the right hand side of the river. This monitoring will utilize two stations that will be placed after determining the best locations to capture, as much as possible, the true temperature in the plume. Temperature recorder station #33 and recorder station #34 are shown on the general locations on the mixing zone diagram. The data from the two stations will be reported as the average of the temperatures for the two stations. This average will allow better tracking of the plume.

The modeling that predicted the previously described passive mixing zone will be

[physically] verified by an instream thermal survey conducted semiannually.

This passive mixing zone that was described in the previous permit has been verified by instream modeling and instream thermal surveys.

The permittee shall maintain a bottom temperature sensor in the Mussel Relocation Zone to ensure protection of bottom dwelling species and a zone of fish passage. The limit for the four existing monitors in the relocation zone will remain at 33.50C (92.3°F) as the instantaneous maximum value previously established to protect those bottom dwelling spocios. The permittee shall record this data on the DMRs, where exceedences of the limit will be considered a permit violation.

Outfall 113 is a near-surface discharge, and computations and measurements confirm that the effluent dispresses in the surface region of the water column providing ample room for fish passage. TVA is not proposing any changes to the dimensions of the Outfall 113 mixing zones with the completion and startup of Unit 2.

Mussel Relocation Zone Temperature Sensors and Data for Summer 2010

TVA-Watts Bar Nuclear Plant (Rationale)

NPDES Permit TN0020168 Page R-19 of R-57 Ilp~:~~i1 I,

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TVA-Watts Bar Nuclear Plant (Rationale)

NPDES Permit TN0020168 Page R-20 of R-57 It is recognized that the temperature of the discharge, after use for cooling purposes, will be higher than that of the intake water. The previous permit did not establish a maximum effluent temperature but rather required reporting of effluent temperature.

Sampling frequency was hourly and sample type was grab. This sampling requirement shall be retained in the new permit.

The temperature at the edge of the mixing zone must not exceed 30.5 0C as a daily maximum. Instream temperature monitors shall be employed at the downstream edge of the active mixing zone to demonstrate compliance. Measurement frequency shall be hourly and sample type shall be recorder.

Temperature, Rise Upstream to Downstream In order to demonstrate compliance with the 3 OC maximum rise upstream to downstream, the permittee shall conduct automated instream temperature monitoring.

Monitoring locations shall include an upstream point (just below Watts Bar Dam) and a downstream point at the downstream edge of the mixing zone (as described above).

Additional Limitations, Conditions, and Monitoring Requirements In addition to the specific numerical limitations discussed above, there are a number of general requirements that shall apply to outfalls 101, 102, 103, 107, and 113.

These requirements are discussed as follows:

40 CFR Part 423.12 (b) (2) (BPT) and Part 423.13 (a) (BAT) specify, 'There shall be no discharge of polychlorinated biphenyl compounds such as those commonly used for transformer fluid." This requirement was in the previous permit and shall be retained in the new permit.

These requirements are potentially applicable to Outfalls 101, 102 and 113. Chlorine is not added to the Supplemental Condenser Cooling Water System (once through cooling water) at the Watts Bar Nuclear Plant; however, it is present in all Outfalls due to commingling of cooling tower blowdown.

TVA has made a demonstration to the Division that the Watts Bar Nuclear Plant cannot operate under these "two hour per day" requirements without significant damage to the system potentially jeopardizing operational safety. No limit was placed on the hours of chlorine use in the previous permit and no such limit shall be included in the new permit.

40 CFR Part 423.12 (b) (8) (BPT requirements, non wastewater source specific) states that "Neither free available chlorine nor total residual chlorine may be discharged from any unit for more than two hours in any one day and not more than one unit in any plant may discharge free available chlorine or total residual chlorine at any one time unless the utility can demonstrate to the Regional Administrator or State, if the State has NPDES permit issuing authority, that the units in a particular location cannot operate at or below this level of chlorination."

40 CFR Part 423.13 (b) (2) (BAT requirements, specific to once through cooling water) also states that for plants with a rated electric generating capacity of 25 or more megawatts that "Total residual chlorine may not be discharged from any single generating unit for more than two hours per day unless the discharger demonstrates to the permitting authority that discharge

TVA-Watts Bar Nuclear Plant (Rationale)

NPDES Permit TN0020168 Page R-21 of R-57 for more than two hours is required for microinvertebrate control.

Simultaneous multi-unit chlorination is permitted."

40 CFR Part 423.13 (d) (2) (BAT requirements, specific to cooling tower blowdown) states "Neither free available nor total residual chlorine may be discharged from any unit for more than two hours in any one day and not more than one unit in any plant may discharge free available or total residual chlorine at any one time unless the utility can demonstrate to the Regional Administrator or State, if the State has NPDES permit issuing authority, that the units in a particular location cannot operate at or below this level of chlorination."

40 CFR Part 423.13 (d) (1), BAT requirements for cooling tower blowdown, establishes monthly average and daily maximum effluent limitations for the 126 Priority Pollutants. The monthly average limit and the daily maximum limit (except for chromium and zinc) for the 126 Priority Pollutants contained in chemicals added for cooling tower maintenance is "No Detectable Amount."

However, Part 423.13 (d) (3) allows the permitting authority, at its discretion, to utilize engineering calculations which demonstrate that the regulated pollutants are not detectable in the final discharge by analytical methods in 40 CFR Part 136.

This requirement is potentially applicable to outfall 101.

TVA has provided data that demonstrates that priority pollutants will not be added to the system in quantities that will be detectable in cooling tower blowdown. Also the data provided with the Form 2C permit application indicates that the priority pollutants were not present in detectable amounts.

The following general statement shall be added to the permit "Priority Pollutants contained in chemicals added for cooling tower maintenance except for zinc, shall not be discharged in cooling tower blowdown in amounts that are detectable by analytical methods in 40 CFR Part 136." Monitoring for the Priority Pollutants shall not be required.

Bromine may be used at times in the raw water system. For purposes of measurement of Total Residual Chlorine (TRC) in the permit, analyses shall include residual bromine with the results reported as chlorine. Thus there is no separate test for residual bromine, but one test for situations where combinations of chlorine and bromine are being used.

The language in the previous permit shall be retained restricting start-up, shutdown and abrupt flow changes when the flow is below 3,500 cubic feet per second.

It is recognized that the permittee must use biocides and corrosion inhibitor products to protect plant piping systems and assure safety in the event of a shutdown.

Because the chemicals in these products may be detrimental to fish and aquatic life in the receiving stream, there is a need to evaluate the nature of the chemicals, the dosage to be used, the duration of use, the effluent concentration, and the need for treatment prior to discharge. The previous permit required that a biocide treatment plan be submitted for approval by the Division and that subsequent changes to that plan during the permit period also be submitted for approval. It is also recognized that biocide and corrosion inhibitor products will change during the course of the NPDES permit period and that there is need for a mechanism to evaluate these changes relative to water quality impacts. Thus language has been incorporated-into the permit to allow modification of the biocide and corrosion inhibitor plan based on pre-approval of the modifications by the Division.

The quantities of chemicals used for treatments of intake or process waters must be conducted in accordance with a TDEC-approved Biocide/Corrosion Treatment Plan (B/CTP).

WBN's current B/CTP was approved in 2009. This provision will continue in this permit and TVA must submit a revised B/CTP which addresses the changes in chemical treatments of ERCW and RCW and ToWerbrome treatments of CCW for two unit operations at WBN.

TVA-Watts Bar Nuclear Plant (Rationale)

NPDES Permit TN0020168 Page R-22 of R-57 VIII.

METALS AND TOXICS The following procedure is used to calculate the allowable instream concentrations for permit limitations. If monitoring for a particular pollutant indicates that the pollutant is not present (i.e., consistently below detection level), then the division may drop the monitoring requirements in the reissued permit.

1. The most recent background conditions of the receiving stream segment are compiled. This information includes:

7Q10 of receiving stream Calcium hardness (measured ambient data, or 80.6 mg/L default)

Total suspended solids (measured ambient data, or 8.4 mg/L, default)

Background metals concentrations (measured ambient data, or 1/22 chronic water quality criteria)

Other dischargers impacting this segment Downstream water supplies, if applicable

2. The chronic water quality criteria are converted from total recoverable metal at lab conditions to dissolved lab conditions for the following metals: cadmium, copper, lead, nickel and zinc. Then translators are used to convert the dissolved lab conditions to total recoverable metal at ambient conditions.

f

3. The acute water quality criteria is converted from total recoverable metal at lab conditions to dissolved lab conditions for the following metals: cadmium, copper, lead, nickel, zinc, silver and mercury. Then translators are used to convert the dissolved lab conditions to total recoverable metal at ambient conditions for the following metals: cadmium, copper, lead, nickel, silver and mercury.

4. The chronic criteria for Chromium (T) is given in the total recoverable form and is not converted to a dissolved lab condition or to the total recoverable ambient condition.

5. A standard mass balance equation determines the total allowable concentration (permit limit) for each pollutant. This equation also includes a percent stream allocation of 90%.

The following formulas are used to evaluate water quality protection:

Cm = QsCs + QwCw Os + Qw

TVA-Watts Bar Nuclear Plant (Rationale)

NPDES Permit TNO020168 Page R-23 of R-57 where:

Cm = resulting in-stream concentration after mixing Cw = concentration of pollutant in wastewater Cs stream background concentration Qw = wastewater flow Qs = stream low flow to protect water quality:

Cw _ _)

rcm (Qs + Qw) - QsCs]

Qw where (SA) is the percent "Stream Allocation".

Calculations for this permit have been done using a standardized worksheet, titled "Water Quality Based Effluent Calculations."

Division policy dictates the following procedures in establishing these permit limits:

1. The critical low flow values are determined using USGS data:

Fish and Aquatic Life Protection 7Q10 - Low flow under natural conditions 1Q10 - Regulated low flow conditions Other than Fish and Aquatic Life Protection 3002 - Low flow under natural conditions

2. Fish & Aquatic Life water quality criteria for certain Metals are developed through application of hardness dependent equations. These criteria are combined with dissolved fraction methodologies in order to formulate the final effluent concentrations.

3. For criteria that are hardness dependent, chronic and acute concentrations are based on a Hardness of 25 mg/I and Total Suspended Solids (TSS) of 10 mg/I unless ambient stream data or water supply intake data substantiate a different value. Minimum and maximum limits on the hardness value used for water quality calculations are 25 mg/I and 400 mg/I respectively. The minimum limit on the TSS value used for water quality calculations is 10 mg/l.

4. Background concentrations are determined from the division database, results of sampling obtained from the permittee, and/or obtained from nearby stream sampling data, If this background data is not sufficient, one-half of the chronic "In-stream Allowable" water quality criteria for fish and aquatic life is used. If the measured background concentration is greater than the chronic "In-stream Allowable" water quality criteria, then the measured background concentration is used in lieu of the chronic "In-stream Allowable" water quality criteria for the purpose of calculating the appropriate effluent limitation (Cw). Under these circumstances, and in the event the "stream allocation" is less than 100%, the calculated chronic effluent limitation for fish and aquatic life should be equal to the chronic "In-stream Allowable" water quality criteria. These guidelines should be strictly followed where the industrial source water is not the receiving stream. Where the industrial source water is the receiving stream, and the measured background concentration is greater than the chronic "In-stream Allowable" water quality criteria, consideration may be given as to the degree to which the permittee should be required

TVA-Watts Bar Nuclear Plant (Rationale)

NPDES Permit TNO020168 Page R-24 of R-57 to meet the requirements of the water quality criteria in view of the nature and characteristics of the receiving stream.

The spreadsheet has fourteen (14) data columns, all of which may not be applicable to any particular characteristic constituent of the discharge. A description of each column is as follows:

Column 1:

The "Stream Background" concentrations of the effluent characteristics.

Column 2:

The "Chronic" Fish and Aquatic Life Water Quality criteria. For Cadmium, Copper, Lead, Nickel, and Zinc, this value represents the criteria for the dissolved form at laboratory conditions. The Criteria Continuous Concentration (CCC) is calculated using the equation:

CCC = (exp { mc I In (stream hardness) ] + bc }) (CCF)

CCF = Chronic Conversion Factor This equation and the appropriate coefficients for each metal are from Tennessee Rule 1200-4-3-.03 and the EPA guidance contained in The Metals Translator:

Guidance For Calculating A Total Recoverable Permit Limit From a Dissolved Criterion (EPA 823-B-96-007, June 1996). Values for other metals are in the total form and are not hardness dependent; no chronic criteria exists for silver.

Published criteria are used for non-metal parameters.

Column 3:

The "Acute" Fish and Aquatic Life Water Quality criteria. For Cadmium, Copper, Lead, Nickel, Silver, and Zinc, this value represents the criteria for the dissolved form at laboratory conditions. The Criteria Maximum Concentration (CMC) is calculated using the equation:

CMC = (exp { mA [ In (stream hardness) ] + bA 1) (ACF)

ACF = Acute Conversion Factor This equation and the appropriate coefficients for each metal are from Tennessee Rule 1200-4-3-.03 and the EPA guidance contained in The Metals Translator: Guidance For Calculating A Total Recoverable Permit Limit From a Dissolved Criterion (EPA 823-B-96-007, June 1996). Values for other metals are in the total form and are not hardness dependent; no acute criteria exists for Total Chromium. Published criteria are used for non-metal parameters.

TVA-Waits Bar Nuclear Plant (Rationale)

NPDES Permit TN0020168 Page R-25 of R-57 Column 4:

The "Fraction Dissolved" converts the value for dissolved metal at laboratory conditions (columns 2 & 3) to total recoverable metal at in-stream ambient conditions (columns 5 & 6). This factor is calculated using the linear partition coefficients found in The Metals Translator: Guidance For Calculating A Total Recoverable Permit Limit From a Dissolved Criterion (EPA 823-B-96-007, June 1996) and the equation:

1 C

0 otal 1 + { [Kpo] [ss(1+a)] [10.6] }

ss = in-stream suspended solids concentration [mg/I]

Linear partition coefficients for streams are used for unregulated (7010) receiving waters, and linear partition coefficients for lakes are used for regulated (1Q10) receiving waters. For those parameters not in the dissolved form in columns 2 & 3 (and all non-metal parameters), a Translator of 1 is used.

Column 5:

Column 6:

Column 7:

Column 8:

Column 9:

Column 10:

Column 11:

Column 12:

Column 13:

Column 14:

The "Chronic" Fish and Aquatic Life Water Quality criteria at in-stream ambient conditions. This criteria is calculated by dividing the value in column 2 by the value in column 4.

The "Acute" Fish and Aquatic Life Water Quality criteria at in-stream ambient conditions. This criteria is calculated by dividing the value in column 3 by the value in column 4.

The "Chronic" Calculated Effluent Concentration for the protection of fish and aquatic life. This is the chronic limit.

The "Acute" Calculated Effluent Concentration for the protection of fish and aquatic life. This is the acute limit.

The In-Stream Water Quality criteria for the protection of Human Health associated with the stream use classification of Organism Consumption (Recreation).

The In-Stream Water Quality criteria for the protection of Human Health associated with the stream use classification of Water and Organism Consumption. These criteria are only to be applied when the stream use classification for the receiving stream includes both "Recreation" and "Domestic Water Supply."

The In-Stream Water Quality criteria for the protection of Human Health associated with the stream use classification of Domestic Water Supply.

The Calculated Effluent Concentration associated with Organism Consumption.

The Calculated Effluent Concentration associated with Water and Organism Consumption.

The Calculated Effluent Concentration associated with Domestic Water Supply.

TVA-Watts Bar Nuclear Plant (Rationale)

NPDES Permit TN0020168 Page R-26 of R-57 The most stringent water quality effluent concentration from Columns 7, 8, 12, 13, and 14 is applied if the receiving stream is designated for domestic water supply. Otherwise, the most stringent effluent concentration is chosen from columns 7, 8, and 12 only.

The calculations are presented in Appendix 5b. One calculation has been made for the Tennessee River and one for Yellow Creek. Because of the close proximity of the outfalls and large flow of the discharges, Outfalls 101 and 113 have been combined for purposes of the water quality calculations in the Tennessee River. Background water quality in the Tennessee River has been taken from the Division of Water Pollution Control monitoring station at river mile 529.5. This data is presented in Appendix 5a.

Separate water quality calculations are presented for ammonia and pH in Appendix 5c and 5d respectively.

In the case of ammonia, Outfalls 101 and 113 were combined for purposes of determining the discharge concentration allowable for the Tennessee River. Based on the calculations it was determined that limiting ammonia to prevent toxicity was not necessary.

Storm Water The following table gives a summary of storm water discharges at the TVA - Watts Bar Nuclear Plant:

Storm Water Outfall Summary E/SW PPP Drainage Impervious Pond(s)

Outfall Permit Area No.

Area Area Included In Designation Coverage acres acres Drainacle Area 1

42 34 YHP 101 NPDES 2

49 47 YHP 101 NPDES 3

144 5

None To be re-evaluated for TMSP 4

92 3

None SW-1 TMSP 5

37 22 YHP 101 NPDES 6

29 1

None SW-5 TMSP 7

18 7

LVWP+

103 NPDES 8

27 8

None SW-2 TMSP 9

45 11 None SW-3 TMSP 10 41 4

None To be covered under TMSP 11 77 18 None To be covered under TMSP 12 163 1

None SW-4 I TMSP 13 166 35 CRHP To be re-evaluated for TMSP 14 42 30 CRHP To be re-evaluated for TMISSP 15 8

0 None No industrial activity Total 980 226 1

Outfalls that contain only storm water and other discharges allowed by the TMSP have been permitted under the Tennessee Storm Water Multi-Sector General Permit for Industrial Activities (TMSP).

Outfalls SW-1 through SW-5 fall into this category and thus are not addressed in this individual permit. Outfalls that contain storm water commingled with process and/or cooling wastewater are covered under this individual NPDES permit.

This includes

TVA-Watts Bar Nuclear Plant (Rationale)

NPDES Permit TNO020168 Page R-27 of R-57 Outfall 101(or 102).

The total flow from Outfall 101 (and 102 when in use) contains approximately 2.1% storm water based on the average annual flow. Storm runoff pollutants from this discharge shall be controlled via the Storm Water Pollution Prevention Plan (SWPPP) required by this permit (see Part IV of the Permit).

It is the intent of the Division that the permittee institute a Storm Water Pollution Prevention Plan (SWPPP) in order to minimize the discharge of pollutants from storm water outfalls. It is the opinion of the Division that the best method for dealing with potential pollution associated with storm water discharges from the TVA-Watts Bar Nuclear Plant is through implementation of an aggressive SWPPP coupled with discharge monitoring to verify SWPPP effectiveness.

In order to assist the permittee in the evaluation of the effectiveness of the SWPPP, benchmark values developed for the Tennessee Storm Water Multi-Sector General Permit for Industrial Activities are provided herein for comparison. These benchmark values (cut-off concentrations) were developed by the EPA and the State of Tennessee and are based on data submitted by similar industries for the development of the multi-sector general storm water permit. The cut-off concentrations are target values and should not be construed to represent permit limits.

Parameters of Concern Cut-Off Concentration [mg/L]

Total Suspended Solids (TSS) 200 Oil & Grease 15 Iron, TOTAL 5.0 pH (range) 5.0- 9.0 Note: Sample values are from the Tennessee Storm Water Multi-Sector General Permit for Industrial Activities, Rationale, Part III, Table Ill-A: Parameter Benchmark Values.

The previous permit contained a requirement that a Storm Water Pollution Prevention Plan (SWPPP) be developed and maintained to regulate storm water runoff. This requirement shall be retained in the new permit. The SWPPP is meant to ensure that runoff from the facility site is not a significant source of pollution to the receiving stream. The discharger shall develop, document and maintain the SWPPP pursuant to the requirements as set forth in the Tennessee's Storm Water Multi-Sector General Permit for Industrial Activities, Sector 0, "Storm Water Discharges Associated with Industrial Activity from Steam Electric Power Generating Facilities, Including Coal Handling Areas", Part 3, "Storm Water Pollution Prevention Plan Requirements", is available at http://www.state.tn.us/environment/wpc/stormh2o/pmt-o.pdf for this permit. The effectiveness of this SWPPP may be investigated by requiring storm water monitoring of the combined process/storm water discharges and requiring that the results of the storm water runoff monitoring be submitted. Should the required monitoring results so dictate, the Division maintains the authority to institute specific numeric limitations for the monitored parameters.

IX.

BIOMONITORING REQUIREMENTS, CHRONIC The discharge of industrial wastewater from Outfall 101, 102, and 113 may contain several different pollutants, the combined effect of which has a reasonable potential to be detrimental to fish and aquatic life.

The Tennessee Water Quality Standards criteria stipulate that "The

TVA-Watts Bar Nuclear Plant (Rationale)

NPDES Permit TN0020168 Page R-28 of R-57 waters shall not contain toxic substances, whether alone or in combination with other substances, which will produce toxic conditions...".

Since the permittee discharges to streams with low critical flow conditions, there is a concern for toxicity effects of the discharge on the receiving stream that is relatively unknown.

Biomonitoring will provide information relative to the toxicity of the discharge.

Chronic biomonitoring is designed to evaluate extended exposure effects of toxicants to growth and/or reproduction of sensitive aquatic species. Calculations of chronic toxicity limits are as follows:

For situations where water is withdrawn from the stream and then discharged back to the stream Qs DF= ---------------------------

Qw and for situations where water is not withdrawn from the stream Qs + Qw DF = ------------------

= Dilution Factor, Qw Where Ow is the wastewater flow and Os is a receiving stream low flow (7010 or 1Q10),).

Please refer to Appendix 5e for details regarding facility wastewater flow and receiving stream low flow. Where the calculated dilution factor is less than 100:1, and assuming immediate and complete mixing, protection of the stream from chronic effects requires:

IWC < 1.0 X IC25; or, INHIBITION CONCENTRATION, 25% > IWC, Where IWC is Instream Waste Concentration and is calculated as a percent of the total flow using the following formula:

For situations where water is withdrawn from the stream and then discharged back to the stream Ow IWC =

x 100 as and for situations where water is not withdrawn from the stream Qw IWC =

X 100 Qs + Ow The following table gives the calculated chronic test values for the four outfalls:

TVA-Watts Bar Nuclear Plant (Rationale)

NPDES Permit TN0020168 Page R-29 of R-57 Calculation of Chronic and Acute Biornonitoring Requirements Watts Bar Nuclear Plant, Ouffalls 101, 102, and 113 Calculation of Chronic Biomonitorin Requrements Outfall Recelhng R:e. Stream Outfall Waste Withdrawing Dilution Factor, OF Instream Wastewater Conc. (IWC)

Stream Flw. Qas Flow, Ow from Withdrawing Not Withdrawing Withdrawing Not Withdrawing mgd mgd Rec. Strrn.

Os/Qw (Qs 4-QwyOw (Ow/Os)

(Qw/(Qw+Qs))

Chronic Requirements, if OF <100 101 1TN Ri~,*r 2062 5776 Yes 35.7 2.80%

102 TN Rver 2062 57.76 Yes 35.7 2-80%

113 iTN er 2062 148+895 No 14.8 8.73%

As seen from the table, WET testing shall be required on all three Outfalls. If toxicity is demonstrated in any of the effluent samples specified above, this shall constitute a violation of this permit.

The toxicity tests specified herein shall be conducted twice a year (2/Year) and begin no later than 90 days from the effective date of this permit for Outfalls 101, 102, and 113.

X.

ANTIDEGRADATION Tennessee's Antidegradation Statement is found in the Rules of the Tennessee Department of Environment and Conservation, Chapter 1200-4-3-.06. It is the purpose of Tennessee's standards to fully protect existing uses of all surface waters as established under the Act.

Stream determinations for this permit action are associated with the waterbody segments identified by the division as segment ID# TN06020001020_1000, and TN06010201001_1000.

The Division has made a stream tier determination of the receiving waters associated with the subject discharge(s) and has found the receiving stream to be neither a Tier 2 nor Tier 3 water.

Additionally, this water is fully supporting its designated uses. The Department has maintained, and shall continue to assess, the water quality of the stream to assure that the water quality is adequate to protect the existing uses of the stream fully, and to assure that there shall be achieved the highest statutory and regulatory requirements for all new and existing point sources and all cost-effective and reasonable best management practices for nonpoint source control.

Additionally, this water partially support(s) designated uses due to polychlorinated biphenyls (contaminated sediments).

The discharge from Outfall 113 does not contain significant amounts of these effluent characteristics (consists only cooling water/storm water runoffand does not represent an increase in flow). The division, therefore, considers the potential for degradation to the receiving stream from these discharges to be negligible.

TMDLs have been developed and approved for this waterbody segment on the following parameters and dates:

Parameter TMDL Approval Date PCBs 03/18/2010

TVA-Watts Bar Nuclear Plant (Rationale)

NPDES Permit TN0020168 Page R-30 of R-57 The proposed terms and conditions of this permit comply with the wasteload allocations of these TMDLs.

The withdrawal rate for the intake pumping station located in Chickamauga Reservoir will increase from approximately 52 MGD to approximately 75 MGD and SCCW intake withdrawal rate will remain approximately 174 MGD is consumptive (primarily cooling tower evaporation) with the remainder to the stream via permitted outfalls. The consumption amounts to only 1.3%

of the 7Q10 stream flow (3173.3 MGD). Therefore, water withdrawal will continue to be de minimus as described in Rule 1200-4-3.04.

No thermal degradation is proposed or anticipated.

TVA has performed an extensive hydrothermal analysis of the WBN heat dissipation system. This analysis indicates that the near-field (and thus far-field) thermal impacts are insignificant and can be managed within the limitations of the current NPDES permit.

Xl.

PERMIT DURATION The proposed limitations meet the requirements of Section 301(b)(2)(A), (C), (D), (E), and (F) of the Clean Water Act as amended. It is the intent of the division to organize the future issuance and expiration of this particular permit such that other permits located in the same watershed and group within the State of Tennessee shall be set for issuance and expiration at the same time. In order to meet the target reissuance date for the Tennessee River (Meigs &

Rhea County) watershed and following the directives for the Watershed Management Program initiated in January 1996. This permit will expire in 2016.

TVA-Watts Bar Nuclear Plant (Rationale)

NPDES Permit TN0020168 Page R-31 of R-57 APPENDIX 1 - FACILITY DISCHARGES AND RECEIVING WATERS I

FACILITY DISCHARGES AND RECEIVING WATERS OUTFALL (OS,,

101 I LONGITUDE LATITUDE

-84.785833 35.593333 FLOW DISCHARGE (MGO)

SOURCE Yard Holding Pond (1.371 MGD) (All variable flows)

O.0000 Turbine Building Station SuignA" 0.0000 Cooling Tower Blowdown 'A' 0.00(X)0 Emergency Raw Cooling Water Discharge 'A' 0.0000 Raw Cooling Water Discharge "A" 0.0000 ice Condenser Chiller/Air Coolers Alternate Path 0.7373 Miscellaneous Discharges, Includes:

0.0000 Condenser Cleaning, Cooling Tower & Work Decon.

0.0010 Training Center Cooling Tower 0.1878 Trash Sluice Water 0.3619 Low Volure Waste H-olding Pond (IMP 103) 0.0000 ERCW Header Flushes 0.0480 Precipitation, Less Eyeporation 0.0020

Cooling Tower Disilting Basin 0.0330 Dlschare from IMP 107 Metal CleaniN Waste Ponds Cooling Tower Blowdown Une (4&773 MGD) 0.0040 LIquid Radwaste System 0.3600 Steam Generator Blowdown 0.0010 Condenser Demineralizer Cleanup 45 400 _

ooing Tbwer Blowdown Weir -

MIsc. Coiling Water (10.52 MGD) 5.3100 Emerency Raw Cooling Water 4.9100 Raw Cooling Water 0.4000 Ice Condenser Chiller/Various Air Cooler 57.7640 TOTAL DISCHARGE (MGO)

RECEIVING STREAM DISCHARGE ROUTE Chlckamauga Resenror (Tennessee Rier Mile 527.9)

STREAM LOW 7010 1010 3002 FLOW (CFS)

[

4910 1

3190 1

8580 (MGD)

I 3173 1 2062 1 5545 STREAM USE CLASSIFICATIONS (WATER QUAUTY)

FSH 710rN FW-47AION LW&W 0Ee&TIC NmDrISTAL NAVi.A~i" X

X Treatment Biocide, sedimentation, neutralization, and oil skimming, mi)dng by submerged multiport diffuser.

Reference:

Flow Duration and Low Flows of Tennessee Streams through 1992 by George S. Law arts Jess D. Weaver.

Water Resources Investigations Report 95-4293 prepared by the U.S. Geological Survey in Cooperation with the Tennessee Department of Environment and Concervation and the Tennessee Valley Authority. Nashville, Tennessee, 1996, p-57.

TVA-Watts Bar Nuclear Plant (Rationale)

NPDES Permit TN0020168 Page R-32 of R-57 FACILITY DISCHARGES AND RECEIVING WATERS OUTFALL (OSN) 102 RECEIVING STREAM LONGITUDE LATITUDE DISCHARGE ROUTE

-84.791667 35.595833 Unnamed tributary entering Chickamauga Reservior (Tennessee River Mile 527.2)

FLOW DISCHARGE STREAM LOW 7010 1010 3002 (MGD)

SOURCE FLOW (CFS)

I 4910 3190 8580 YardHolfng Pond Overflo Weir (emergency outfall) -

(GI3173.3 U2061.7 5545.3 0.0000 Provides an alternate discharge path for the diffuser discharge point (OSN 101)

STREAM USE CLASSIFICATIONS (WATER QUALITY)

FISH R*ECREATION IMFGATK)

LW&W DOETIC eNOUSTRAL NAV-ATION 0.0000 TOTAL DISCHARGE x

x Treatment:

Biocide, sedimentation, neutralization, and oil skimming, mixing by submerged multiport diffuser.

Reference:

Flow Duration and Low Flows of Tennessee Streams through 1992 by George S. Law ans Jess D. Weaver.

Water Resources Investigations Report 95-4293 prepared by the U.S. Geological Survey in Cooperation with the Tennessee Department of Environment and Concervation and the Tennessee Valley Authority. Nashville, Tennessee, 1996, p.57.

I I

FACILITY DISCHARGES AND RECEIVING WATERS I

OUTFALL (IMP) 103 t

RECEIVING STREAM LONGITUDE LATITUDE DISCHARGE ROUTE

-83.20694 35.59722 Internal monitoring point that discharges through the Yard Holding

_Pond FLOW DISCHARGE STREAM LOW 7T10 1010 30Q2 (MGD)

SOURCE FLOW (CFS) 0.*.

0.0' Low Volume Waste Holding Pond 1

MGD 0.0 0.0 0.0 0.0053 Precipitation, Less Evaporation 0.0250 Alum Sludge Supemate STREAM USE CLASSIFICATIONS (WATER QUALITY) 0.2600 Vendor Water Ppurilication (RO reject water)

FIHsi RECREATIN IEGAnON LW&W 2,E'S11C 0.0716 Turbine Buidlng Station Sump X

'6 X

I X

X I

N)U-TFIA L NVI~

0.3619 TOTAL DISCHARGE X

Treatment: Oil skimming, sludge thickening, and neutralization No low stream flow assigned to the internal monitoring point which discharges to the Yard Holding Pond

TVA-Watts Bar Nuclear Plant (Rationale)

NPDES Permit TN0020168 Page R-33 of R-57 FACILITY DISCHARGES AND RECEIVING WATERS

_.j OUTFALL (IMP) 107 RECEIVING STREAM LONGITUDE LATITUDE DISCHARGE ROUTE

-84.7955 35.6048 Internal monitoring point which discharges through the Yard Holding Pond FLOW DISCHARGE STREAM LOW 7010 1Q10 3002 (MGD_

SOURCE FLOW (CFS)

I 0.0 0

0.0 I

0.0 Metal Cleaning Waste Ponds (LP and ULP)

(MGD) 0.0 0.0 0.0 0.0003 Metal Cleaning Waste 0.0001 Storm Water Runoff STREAM USE CLASSIFICATIONS (WATER QUALTY) 0.0001 Drum Rinsing FISH REATDON IRRGATION LW&W LO5STrC 0.0001 Drum Dewatednx X

x

. x 0.0001 Diesel Generator Coolant INU.5TRIAL NAVIGATION 00,303 Turbine Station Surnp W/MetaJ Cleaning Waste x

0,0310 TOTAL DISCHARGE Treatment Oil skimming, sludge thickening, and neutralization No low stream tow assigned to the internal monitoring point which discharges to the Yard Holding Pond FACILITY DISCHARGES AND RECEIVING WATERS OUTFALL (OSN)113 I

RECEIVING STREAM LONGITUDE LATITUDE DISCHARGE ROUTE

-84.785833 35.593333 Discharge via diftuser to Chickamauga Reservor (Tennessee RF.r I

Mile 529.2)

FLOW DISCHARGE STREAM LOW 7010 1

1010 3002 (MGD)

SOURCE FLOW (CFS)

L:! 4910 I

3190 8580 148.895 Supplemental Condenser Cooling Water (Noncontact)

(MGD 3173.3

_ 2061.7 5545.3 STREAM USE CLASSIFICATIONS (WATER QUALITY)

FISH FMýEATQN IRI~GATIO'N LW&W ooMaSic X

x I

X I

X

_IINOUSTRL NAVGA]dIJ 1 48.895 TOTAL DISCHARGE x

x Treatment: Thennal Mixing

Reference:

Flow Duration and Low Flows of Tennessee Streams through 1992 by George S. Law and Jess D.

Weaver. Water Resources Investigations Report 95-4293 prepared by the U.S. Geological Survey in Cooperation with theTennessee Department of Environment and Conservation and the Tennessee ValleyAuthority. Nashville, Tennessee, 1996, p.57.

TVA-Watts Bar Nuclear Plant (Rationale)

NPDES Permit TN0020168 Page R-34 of R-57 FACILITY DISCHARGES AND RECEIVING WATERS OUTrFALL (OSN) 114 LONGITUDE LATITUDE

-83.21667 35.62083 FLOW DISCHARGE (MGD)

SOURCE 0.019 Supplemental Condenser Cooling Water (SCCW) - (Intake screen backwash) 0.019 TOTAL DISCHARGE RECEIVING STREAM DISCHARGE ROUTE Discharge a Tennessee Rier@ mile 529.8 STRAM LO 7010 11 300 I

2 FLOW (CFS)

I 4910 I

3190 I

8580 MGOD) 3173 1

2062 1

5545 STREAM USE CLASSIFICATIONS (WATER GUALITY)

FSH RE2EATION IRR-GATiN LW&W DOm'ESTiC x

- X x

x x

DS'TrRAL NAVr'AIJN x

x Treatment Screens

Reference:

Flow Duration and Low Flowsof Tennessee Streams through 1992 by George S. Law and Jess D.

Weaver. Water Resourceslnvestigations Report 95-4293 prepared by the U.S. Geological Surveyin Cooperation with the Tennessee Departmentof Environrnentand Conservation and the Tennessee Valley Authority. Nashville, Tennessee, 1996, p.57.

TVA-Watts Bar Nuclear Plant (Rationale)

NPDES Permit TN0020168 Page R-35 of R-57 APPENDIX 2 - APPLICABLE EFFLUENT LIMITATIONS GUIDELINES SIC GROUP 4911, 40 CFR PART 423 STEAM ELECTRIC POWER GENERATING CATEGORY GUIDELINES I f'I~At hAl I IIfl~ ~AIA~T~ ~flI IOt~~

BPT BAT BPT BAT MONTHLY DAILY EFFLUENT AVG. CONC.

MAX CONC.

AVG. CONC.

MAX CONC.

CHARACTERISTIC Jmp-)

(mg/L)

(mg._)

(mg/L)

Total Suspended Solids 30 100 Oil and Grease 15 20 pH 6.0-9.0 Polychlorinated Biphenyl No Discharge Allowed No Discharge Allowed Compounds I

I METAL CLEANING WASTES

_PT__ _

BAT SUBPART 423.121 SUBPART 423.13 MONTHLY DAILY MONTHLY DAILY EFFLUENT AVG. CONC.

MAX CONC.

AVG. CONC.

MAX CONC.

CHARACTERISTIC (mg/_)

(mg/L)

(mg]L)

(mg/L)

Total Suspended Solids 30 100 Oil and Grease 15 20 pH 6.0-9.0 Copper, Total

_,,1.0 1

1.0 1.0 1.0 Iron, Total 0

1.0 1.0 1.0 Polychlorinated Biphenyl No Discharge Allowed No Discharge Allowed Compounds 1

TVA-Watts Bar Nuclear Plant (Rationale)

NPDES Permit TN0020168 Page R-36 of R-57 SIC GROUP 4911, 40 CFR PART 423 STEAM ELECTRIC POWER GENERATING CATEGORY GUIDELINES j'it'FrlI I lNr-T(

=MAlD I[

^f rlnfVIIl BPT U

BAT SUBPART 423.12 If SUBPART 423.13 MONTHLYI DAILY' MONTHLY DAILY EFFLUENT AVG. CONC.

MAX CONC.

AVG. CONC.

MAX CONC.

CHARACTERISTIC (Mrg/L) j mg/L)

(mg/L)

Chlorine, Free Available*

0.2 0.5 0.2 0.5 PH 6.0-9.0 Chromium, Total 0.2 0.2 Zinc, Total 1.0 1.0 Priority Pollutants (126) contained in chemicals added for cooling tower No Detectable Amount maintenance, except Chromium and Zinc Polychlorinated Biphenyl No Discharge Allowed No Discharge Allowed Compounds ONCE THROUGH COOLING WATER BPT BAT SUBPART 423.12 U

SUBPART 423.13 MONTHLY DAILY MONTHLY DAILY EFFLUENT AVG. CONC.

MAX CONC.

AVG. CONC.

MAX CONC.

CHARACTERISTIC (mgl/L)

(mg/L)

(mi/Q)

Chlorine, Free Available 0.2 0.5 Chlorine, Total Residual*

0.2 pH 6.0-9.0 Chromium, Total 0.2 0.2 Zinc, Total 1.0 1.0 Polychlorinated Biphenyl No Discharge Allowed No Discharge Allowed C o m pounds V

Limitation applies to once through cooling water from plants with a total rated electric generating capacity of 25 or more megawatts.

TVA-Watts Bar Nuclear Plant (Rationale)

NPDES Permit TN0020168 Page R-37 of R-57 APPENDIX 3 - PREVIOUS PERMIT LIMITS AND MONITORING REQUIREMENTS PERMIT LIMIT S TVA-Watts Bar Nuclear OUTFALL 101 CoOling WaWr, SltornWater and Process Was evwater a--

EFFLUENT LIMTIATIO NS MONITORING MONTHLY DAILY REOUIREMENTS EFFLUENT A'G.C G AON" MA. XCONC.

%LA-X.

AAL I A.5 f

ý]"

SAMIPLE CHARACTERISTIC (QW1 (IIA MUNC V ePlE FLOW Report (MGD)'

Report (MGD)'

Continuous Recorder C ertification of Ilnstream Flow of I

ReportasYesim 1.Vonh Operation 3,500 cfs when required I

Records PH 2 Range 6.0 - 9.0 2/Month Grab TOTAL SUSPENDED SOLIDS (TSS) 30.0 100.0 1/Month Grab OIL & GREASE 15.0 20.0 1/Month Grab CHROMIUM, TOTAL 0.2 0.2 WAIVED' Grab ZINC, TOTAL 1.0 1.0 2/Month Grab CHLORINE, TOTAL RESIDUAL Grab.

(TRC)'

0.10 0.10 5JWeek TEMPERATURE, Effluent_

35-C Con nuous Recorder IC25 25% Inhibition Concentration shall be >3.3% effluent 2/year Composite There shall be no discharge of PCBs.

Flow shall be reported in Million Gallons per Day (MGD). In the esent that the continuous flow monitor is out of seMce, Row monitoring shall be estimated by Intake pump logs.

pH and TFRC analyses shall be performed within fifteen (15) minutes of sample collection.

The acceptable methods for analysis ot TRC are any methods specified in 40 CFR Part 136, When the temperature monitoring equipment tails, monitoring will be done once per day. Reasonable and timely effort will be made to restore the temperature recorder to operation as soon as possible. See Part III for further temperature requirement 6 See Part Ill for methodology.

Monitoring for chronium Is waed per 40 CFR 122.44 (aX2XI) See Rationale for more comments.

TVA-Watts Bar Nuclear Plant (Rationale)

NPDES Permit TN0020168 Page R-38 of R-57 I

I~PERMIT LIMITSI TVA-Watts Bar Nuclear OUTFALL 102 Cooling water, Stonmier runoff and Process Wastewater EFFLUENT LIMITATIONS MONITORING EFFLUENT LIMITATIONS RE-0.U1FIFEINITS MONTHLY DAILY EFFLUENT AVC. C014c.

AVG. A*M*-.

IAXI ON.

.** AIT.

ULSMINT.

S.AIPLE CHARACTERISTIC

(...A)1 (sw'ayI]

Mzn)

(thi' FRQlNC V.

I "I

FLOW Report (MGD)

Report (MGD) 1 I/Day knslantaneous C ertlfllcalon oflInstreamn Flow of

._Report as Yes/No Il/Me rrih I Operation 3,500 cft when required

._Records pH 2 Range 6,0 - 9.0 2/Month 6 Grab TOTAL SUSPENDED SOLIDS (TSS) 30.0 100.0 I/Month 6

Grab OIL & GREASE 15.0 20.0 l/Month '

Grab CHROMIUM, TOTAL 2.0 2.0 Waived 7

Grab ZINC,TOTAL 1.0 1.0 2tMonth 6 Grab CHLORINE, TOTAL RESIDUAL (TRC)2.3 0.10 0.10 S/Week Grab2 TEMPERATURE, Effluent 35 C 1/Day Grab 1r25 25% Ihibition Concentration shall be >3.3% effluent 2/ear 4

Composite 4 There shall be no discharge of PCBs.

Flow shall be reported In Million Gallons per Day (MGD).

2 pH and TRC analyses shall be performed within fifteen (15) minutes of sample collection.

3 The acceptable methods for analysis of TRC are any methods speclfled In 40 CFR Part 136&

4 Sampling and analysis required only If discharge is operated 30 days or more during the semi-annual periods January through June or July through December and If all toxicity testing requirements have not already been completed for Outfall 101. See Pa Certlilcation shlall be made during any month that a discharge occurs from this outfall.

If there Is discharge during I or more days from this outfall, sampling Is required to comply with Ihe maximum daily limit. If there are two or more separate days of discharge, or a continuous discharge during 5 or more consecutive days from this outfall then one sample is required from that 'batch' discharge in order to report the monthly avergage limit.

' Monitoring for chromium is waived per 40 CFR 122.44 (aX2XI). See Rationale for more comment&

TVA-Watts Bar Nuclear Plant (Rationale)

NPDES Permit TNO020168 Page R-39 of R-57 PERMIT LIMITS TVA-Watts Bar Nuclear OUTFALL 103 (intemal Monrlring PoIint LowVolurmeWaste Holding Pond EFFLUENT LIMITATIONS MONITORING MONTHLY DAILY REQUIREMENTS EFFLUENT AVG. C0C NC.

AVG.Al NT.

A.. CO NC.

R tIN.*jNL N L,.'.tr.

NAt,'l.t CHARACTERISTIC

(.0sA)

(,-51 Imel)

I ola.1d FRQNCY..

TnPE FLOW Report (MGD) 1 Report (MGD) 1 Continuous' Recorder pH 2 Range 6.0 - 9.0 1,Month Grab TOTAL SUSPENDED SOLIDS (TSS) 30.0 100.0 1/Month Grab OIL & GREASE 15.0 20,0 1/Month Grab Row shall be reported in Million Gallons per Day (M1O).

2 pH analyses shall be peuformed within fifteen (15) minutes of sample collection.

I

'LIMITS TVA-Watts Bar Nuclear OUTFALL 113 Supplemental Condenser Cooling Water EFFLUENT LIMITATIONS MONITORING MONTHLY DAILY REOUIREMENTS EFFLUENT

v.

oc.

n.

s.:

AXCOC A.ANt UHlN; Nfl.

C HARACTERISTIC cwn Ii.KS.yl I..+/-I 9)459:

-lnCv.

n-P-FLOW Report (MGD)

Report (MGD)'

Continuous Recorder Certification of Inislreanl Flow of Report as Yes/No 1/Month Operation 3,500 cf vvhen required Records pH 2 Range 6.0-9.0 1/Month Grab TOTAL SUSPENDED SOLIDS (TSS) 30.0 100.0 1/Month Grab CHLORINE, TOTAL RESIDUAL (TRC) 2.3.5 0.092 0,158 l/Mnth' Grab DISSOLVED OXYGEN (D.O.)

Report Min.

1/Month Grab TEMPERATURE, Effluent Report Effluent Temperature' Hourly Recorder 7 TEMPERATURE, Edge 305 'C Hourly Recorder of Mixing Zone TEMPERATURE, Rise

.3C Hurly CalculatedI.

Upstream to Downstream TEMPERATURE. Rate of Change, Hourly

.C per hour 2 C/Hour Calculated, TEMPERATURE, Receiving 335 *C Hourly Recorded Stream Bottom IC25' 25% Inhibition Concentration shall be >8% effluent Semi-annual Composite Flw srill be pl.o"ed in MihW, Galorla per Day IMOL)).

r11 aen TIC analyses Shalt 50 partcined within fiteen i151 5

inLGSs or sarple collectdon Th. L

-uettblo mtntl,,)tt for aCWy.is OfIRO T

re

-any

-nnthodt t.-ifilt5 in 40 CFR P.rt 135.

9ee lext below tatrle tlo requirements.

See Part Ill !or *r*ilth0d logy Sirnplingr for TRC.rl) be U arW-u (tu ixrlious mien the Saapl-rneirte Conrr oqsor Coovirtg Wat

trSC.CW) systrrin ;s iti oe.1tiOln.

See additional (bulleled) comments in permit. Bog ns on page 8 of 27.

TVA-Watts Bar Nuclear Plant (Rationale)

NPDES Permit TNO020168 Page R-40 of R-57 PERMIT LIMITS TVA-Watts Bar Nuclear OUT FALL 107 (Internal Monitoi~ng Point Metal C leaning Wastewater EFFLUENT LIMITATIONS MONITORING MONTHLY DAILY REOUIREMENTS EFFLUENT AVG. o*aC

,-.. AMn.

N

,N, o.

,,CONC.

NA A, Mr.

Nt rtrNT.

SA1PLE CHARACTERISTIC

1tlv, wo.l tnre0) ttthay) ktiQ-,:'

IN FLOW Report (MGD)

Report (MGD) 1 1/Batch' Calculated pH 2 Report Report 1/Batch 2 Grab TOTAL SUSPENDED SOLIDS (TSS) 30.0 30.0 1/Batch Grab OIL & GREASE 15.0 15.0 I/Batch Grab COPPER, TOTAL RECOVERABLE 1.0 1.0 1/Batch Grab IRONTOTAL RECOVERABLE 1.0 1.0 1/Batch Grab PHOSPHORUS, TOTAL 3 1.0 1.0 1/Batch Grab Flow shall be reported in Million Gallons per Day (MOD) for each batch discharge. It a batch discharge extends for more thean a 24-hour pence, flow pH analyses shall be performed within ifteen (15) minutes of sample collection.

Sampling for phosphorus is required only wlhen metal cleaning chemicals containing phosphorus are being used.

PERMIT LIMITS FOR OUTFALL 114 TVA-Watts Bar Nuclear S upplerntral Condenser Cooling Water Intake S creen Backwash meter 1.) No numerical monitoring limitations are applied to this outfalL

TVA-Watts Bar Nuclear Plant (Rationale)

NPDES Permit TN0020168 Page R-41 of R-57 APPENDIX 4 - HISTORICAL MONITORING DATA OUTFALL 101 O A L 0 bantio Flow Total SuspeWded 01 hn, total lagn)

Whole Effiuent Toxiclq Total Rsidual Chlodne Teanperature, PH

_o__ _NET)

Tesond Effluent

b$Maradan Effluent M Ave I D M

Ave 0 Max M Ave O Max Daily 064d torsrly Etftert EOffluent Effluent E1ffiOft Etfluent Effluenit C*11OdolIODhn Pw*ep11e1l gollyf ma.

Daily I.1",

Mts Mao.

Date hoot Avirage Mae.

Canr COo.

Coarc.

Con Cooc.

Cono, Come.

CorK.

Daily MLi.

Conc. Conc.

UGD MGD ag911 mg-mg/L to mrgL m*

mrLk noL C

12W2002*

1 43 19 0097 4.0 4,0

.0 50 002 0.02 G.AS 005 tO 7.9 a

Mi/2622006 1

41.32 6046 80 s0 so so 0.01 0.01 00s 005 22 76 62 MUM30S00 1

37.23 02-9 8.0 90

.0 50 0.01 001 005 009 24 8.41 84 9311200M 1

3137 S2.72 00 60 SO so0 00 0.11 005 0 0 28 8 ]

8.4 W3090 1

0120 7055 0

9 50 1 50 G 13 015 oos 0

OT 2

69 84 R613112DO 1

434 81.19 0

8 a0 s0 5s0 003 00 a 005 6005 31 7.6 9

031'2006 1

38.17 6505 100 130 5.0 5.0 0.02 0.03 0.05 0.05 31 7 3 097 19*3r"2N 1

37.21

'1.10 90 90 s0 s0 016 021 0.00 006 30 7.9 84 10031206 41 73 71.95 0.0 80 5'

5.0 818 a I0 101 0.0 24 7.4 7A 11130/200 I

2042 00.99 40 40 0.0 0.0 0.02 0.02 a 0i 1

050 17 7.S 7-I 13120205 1

32.56 1 00 ?4 50 506 I s0 1

0 002

£312B907 6312007

£30"2007 1

1 1

4474 1 72716 29 ;4-

ý66 03 002 0.01 001 002 0 02 0 02 0.01 0 01 003 00S 000 is 7.6 7

60 0.0 0.05

£31007

£30w'2007

£3112007 M0'2007 3533 57.64 3413 6E49 2713 it1al 25 -1 61 97 30_O_

70.0 60 1.0 5A 003 009 003 007 004 0.03 0 06 32 70 0.04 005 1

006 31 7.9

£3112007

£30'2007 13163007 1310290M

,r62920,08 M/302008 1

11 7

1 I

1 213 135 27.7"2 55.74*

110 1I 68 59 123.7; 66 91!

3.

30 7.1 91 50 19 570 5.0 5.0 1.9 50 5.0 0.91 1 001 0 02 00 0.03

0113al 37.11 1 8.078 005 005 005 005 000 006 005 0 95 0.09 0 05 0 07 0.90 007 a 0?

43162008 43.19 17S7.6 47 8, 1MI.,

66 1 i102,qA 12, 4.

9.

7 5.5 5.5 5.3 5.3 6.6 5.6 52 52 Oil1 0 is C.06 0 011 0.06 0.10 012 0 12 1

73 93042008 1

6384 1 10811 11 4.

4 110

,14 4.I0 52 52 006 009 30.60 13 K52 55 5.5 004 0.05 0.05 005 005 0.05 006 005 T as

-23 7.7 1 7.9 10 75 r 7f 24 79 84 2.3 7.9 j

.3 20 77 01 2s 7.0 7.8 32 0

31 780 0

32 7.6 79 31 7r 77 28 70 79 23 0

03.

23 70 34 20 7.7 79 21 0

i a

23 59 1 s1 27 8

84 33 8 1 04 31 0.0 8.7 31 77 31*20*9

£,31,2009 4r380o09 3.69 0

65.15 74 F2 7.3 7_1 74 1

03 1 53 001 1001 009 0 13 0o 10 0.10 aO 13 0 22 192 192 43162009 7/3062009 M'3102009

'131102009 613002009 1131-7009 13062009 1,3162909 1316010 V2812010 W31,2010 V3902010 03112010 13062010 1312.010 1

1 1

3479 60.50 31.01 55G97 29 1; S 34

'202 67.64 32 r 70 70 33 83 5-1800 2'982 5E 41T 0.04 005 11.0 11.0 110 2.2 0 10 0.17 a 09 0 10 0 05 007 11 05 74 8 1 53 0

2256 50o J_

1973 46711 23 64 IT 5ý 47 47 10 20 21 7 6 84 3.2 744 is 2,4 34 I 3.6 55 55 I 001 a a02 a 00 7.0 i

.2 0

I 01 004 004 0 J5 32 613112010 604 00U 36 15 1 2.2l 30 10 44 9A

_!25

'2ý 17

,_ is 5.5

.11 22 T'7 V316010 1

S.0

,90 03 13 2 132 29 6131I2011 II L

N'2812011 I

5q 21 91 9 j5 99 9 5 0.01 i 0 02 Lthinklmm Petrrit Lilit Count 0.I,(

1.1 5!

19.11; 33.56 6.611 108.11 34.42'! 03.96 59t6 5

3.0i 3,8 15.o1 15.0 T*,4 7.5 59!

59 1.9; 1.9 6.011

.1 5.21 5.3 16 30 58!

510 0.01:

0.01 0.10 0.22 0.05' 0.07 1.0, 1.0 59' 58 13.27 17.7i

.3!2 13L i1.;

3.:

0.05' 0.09 o.ooi 0.09 02951 0.06 0.011' 0.019 44 4

18 3:

21 35"t St.

0.9 7 1) 0.0; 9.1 56!

5!

TVA-Watts Bar Nuclear Plant (Rationale)

NPDES Permit TN0020168 Page R-42 of R-57 OUTFALL 103 Flow Total Suspended O&G PH Solids Effluent M Ave D Max M Ave D Max Daily Daily Monthly Effluent Effluent Effluent effluent Max.

MIn.

Date Average Daily Max.

Conc.

MGD MO3D mg/L mg/L nmg/L m g/L 02128/2006 0.17 0.64 12 19 5

5 7.3 8.8 03/3112006 0.02 0.02 18 65 5

5 7.5 8.9 04/30/2006 0.02 0.02 9

12 5

5 7.7 8.4 05/31/2006 0.02 0.02 8

11 5

5 7.1 8

06/30/2006 0-02 0.02 7

9 5

5 7.2 8.8 07131/2006 0.02 0.02 4

5 5

5 7

8.1 08/31/2006 0.02 0.02 8

10 5

5 8.2 8.6 09/3012006 0.02 0.02 11 14 5

5 7

8.7 10/31/2006 0.01 0.01 7

8 5

5 7.4 8.6 11/30/2006 0.01 0.01 4

6 5

5 7.9 8.5 12/3112006 0.01 0.01 3

4 5

5 7.7 8.3 01/31/2007 0.12 0.36 2

3 6

6 7.6 8.3 02/28/2007 0.02 0.02 6

10 5

5 7

8.2 03131/2007 0.1 0.71 4

4 6

6 8.3 8.4 04/30/2007 0.02 0.02 6

7 5

6 8.2 8.5 05/3112007 0.02 0.02 14 18 5

6 8.7 8.7 06/30/2007 0.02 0.02 7

8 5.4 5.6 7.9 8.5 07/31/2007 0.02 0.02 6

6 6.5 7.4 7.3 8.7 08/3112007 0.02 0.02 9

12 5.2 5.3 7

8.8 09/30/2007 0.02 0.02 5

5 5.6 5.6 7.7 8.6 10/31/2007 0.02 0.02 5

5 5.9 5.9 7.3 7.8 11/30/2007 0.02 0.02 4

4 5.6 5.6 8.6 8.6 12/3112007 0.01 0.02 6

6 5.3 5.3 8.7 8.7 01/31/2008 0.02 0.02 4

4 5.3 5.6 8.2 8.9 02/29/2008 0.02 0.02 7

7 3.6 5

7.2 8.6 03/31/2008 0.52 1.04 5.9 6.2 5

5 8.6 8.9 04/30/2008 0.38 1.32 9.8 14 5

5 8.3 8.8 05/31/2008 0.3 0.36 5.6 7.2 5.3 5.6 7.1 8.6 06/30/2008 0.31 0.37 5.7 6.4 5.5 5.6 7.6 8.3 07/31/2008 0.19 0.25 6.5 8

5.5 5.6 7.4 8.8 08/31/2008 0.23 0.63 7.5 10 5.3 5.3 7.6 8.4 09/30/2008 0.3 0.62 7.2 8.1 5.3 5.3 8.5 8.7 10/31/2008 0.27 0.47 6

6.2 5

5 8.3 8.8 11/30/2008 0.24 0.34 8

9.8 5.2 5.3 7.9 8.9 12/31/2008 0.24 0.4 7.2 9.2 5

5 8.2 8.9 01/3112009 0.17 0.25 5.4 5.8 5

5 7.4 8.7 02/28/2009 0.24 0.87 8

8.2 5

5 8.6 8.7 03/31/2009 0.47 0.87 7.5 8.5 5.2 5.3 8.5 8.9 04/30/2009 0.32 0.71 10.3 11 5.2 5.3 8

8.7 05/31/2009 0.42 1.04 11.4 13 5.3 5.3 7.6 8.7 06/30/2009 0.35 0.5 6.3 6.4 5.5 5-6 7.3 8.5 07/31/2009 0.23 0.49 10.8 14 5.6 5.6 7.2 8.8 08/31/2009 0.28 0.39 5.7 6.8 5.3 5.3 7.2 8.7 09/30/2009 0.46 1

7.2 7.4 5.6 5.6 7.1 8.7 10/31/2009 0.29 0.66 8

10 5.2 5-3 7.6 8.6 11/30/2009 0.3 0.94 6-9 9.3 5.2

'5.3 7.5 8

12/31/2009 0.39 0.98 5.9 6.4 5.3 5.3 8.1 8.8 01/31/2010 0.38 1.42 5.6 5.7 5.5 5.6 7.9 8.8 02/28/2010 0.36 1.24 3

3 5.2 5.3 7.6 8.8 03/3112010 0.27 0.35 4.3 4.5 5.2 5.3 7.5 8.5 04/3012010 0.21 0.37 3.9 5

5.6 5.9 7.5 8.9 05/31/2010 0.44 1.03 9.9 15 5.3 5.3 7.9 8.9 06/30/2010 0.31 0.84 6.9 7.5 5.3 5.6 8.3 8.8 07/31/2010 0.26 0.29 7.4 7.4 5.3 5.3 8.6 8.6 08/31/2010 0.24 0.29 5.7 5.7 5.6 5.6 8.3 8.3 09/30/2010 0.19 0.23 7.9 7.9 5.6 5.6 8.8 8.8 10/311/2010 0.19 0.22 4.8 4.8 5.6 5.6 8.5 8.5 11130/2010 0.16 0.24 11 11 5.3 5.3 8.7 8.7 12/31/2010 0.46 1.44 6.8 6.8 5.3 5.3 8.9 8.9 01/31/2011 02/28/2011 0.44 1.68 3.8 3.8 5.6 5.6 8.7 8.7 0.011 0.01 2-0 3.0 3.6 5.0 7.01 7.8 Maximum 0.521 1.68 18-0:

65.0 6.5 7.4 8.9i 8.9 Average 0.11W 0.44 7.01 9.0 5.3 5.4 7.81 8.6 Pr L-30!

100 15i 20 6.01 9.0

_Count 60i 60 60!

60 601 60 S0l 60

TVA-Watts Bar Nuclear Plant (Rationale)

NPDES Permit TN0020168 Page R-43 of R-57 OUTFALL 107 Flow Total Suspended Solids O&G Iron. total

ýas Fe)

Phosphorus, total (as P) pH R*

A*m*

4 till jCllt I

~ ~

I Li WOA 3W0 Li RICA I Ci V 4 Li ILSA Ill

4. Li Mou~thfy Etlkent Effisient Effluent Effluent P.11-thfy Average Mtfl Daily Ma-.

Eml.lert C-i m n11 Efolue."

Cor,

-1ni EffIl ent Cone.

EntluernI Con0.

n-u,..'-

Effluent Co-e.

malL ntlun(E Effluent Cmg.

rng/L E fflulem't CORO.

ml-hL Lellty Mala.

PA"*.

DeitY MIM.

Com.

mg/L rn 'L L

m IL 5

0 1

4-1 6

1 '0.

1 1

5 01 09130W2006 10/31121308 11130/2006 12/31/2006 011311-2007 02/28/2007 03/31t2007 04130/2007 05/31/2007 06/30/2007 0713112007 08/31'2007 09f3 012007 10/3112007 11/30/2007 12(3112007 0163112008 02r2912008 0313112008 04/30;2000 0513132008 0613012008 07(31(2008 08/31/2008 09130/2008 1013112008 11F3012008 12131/2008 0113112009 02/28/2009 0313112009 04130/2009 05/31/2009 06(30/2009 07/3112009 0813112009 09/3012005 10/3112009 11130f2009 1213112009 0113112010 02/28(2010 03F312I010 04130/2010 0913112010 06(3012010 07131/2010 0813112010 09(3012010 1013112010 11130/2010 1213112010 01.3112011 02128W2011 7

8 11 11 659 11 96 15 1.0 15.0 7.2 30.0 I1!

7 6

03 00 0.1 02 0+1 02 03 03 02 0.0 0.3 0.2i 1.01

¶11 0 1 0.3 01 02 03.1 02 03 032 02 0.2 0.A 11 2.55 El _

1 8.4 1

MiniM um, c elns M

a.00 3:15 1S4" 11 0.00 3.15 1.94 11 1.0 15.0 7.2 30.0 1-u 5.0i 5 (

5.:s 1503 5.:

1't 0.11 1.04 5-5 0.7 0.1 0.7 I1C I1I r.ZI 8.6 8.2 1;i]

7.2 8.6 5.2 11 i i.

Outfall 107 discharges as a batch discharge. All data presented as historical data. Additional intermittent discharge from condenser tube cleaning wastewater. Filtered to 5 microns for asbestos.

TVA-Watts Bar Nuclear Plant (Rationale)

NPDES Permit TN0020168 Page R-44 of R-57 OUTFALL 113 D01harge Tota Suspended Oimoed Mole EMuen loxitY Total Residual Chlorine Temperatuse, Temperature, Temperature. Temperature.

oe

Fo Solids Oxygen

[WET) Testing Effluent Effluent Effluent Effluent Obaeti ffoI Moottenst EiJernt DMly Min. Cne*lsprsis "imhes Ofte ISMe MY AMa.

M*.

Date IMM Averue Cn.

F Conm Conc.

Cunt.

CoMr.

DOItoe.

Is e[eLilm.

W.13, V.

edyfttLs.

Conc. Cone, MGD M1GD majIL mg1I.

mgL.

mg,.L

.ML I

C C

02,718006 1

9G7.

133M75 6

6 8.0 0.0 0.05 10.7 9.0 1

2 0

8 0331(2006 1

10232 128.03 6

5 5

005 0a04 13.2 131 1

1 6.2 0.2 M0AM2000 1

1127B0 137 66 4

76005 0

00 103 107 2

1 03 a3 0531,2006 1

10004.

14874 3

3 79 00a 005 21.1 21.1 1

1 78 1.3 0623012000 1

6426 117.31 5

5 74 005 0.05 267 263

[

1 84 04 07/3112000 1

15086 2227 9

4 4

7 2 a 06 0

0 0 2

26 S 28 1 1

1 803 3

07311006 I

21929 235.77 3

1 65 0 06 a 05 29.2 28 7 1

0 8.4 a.4 0913012006 1

90.60 233 66 2

3 6

0 05 0.05 28.4 27.9 0

a 6 2 0.2.

101312000 1

7.10 3

0i 1

1 12 0 05 005 22.9 22 8 0

0 7.6 7.G_

1112012006 1

14081 1[273 3

3 117 0.05 0.05 169 107 1

0 7.0 7,5 12131M2006 1

15623 189.40 4

A 9

0 05 007 13.1 12 6 2

1 7.6 7.6 01/3112001 1

155 10

.02 1 4

4 10.3 0 05 0 05 12 1 1`13 1

t 74 74 02132007 1

12655 14374 1 2

2 3.1 0 05 005 10.1 71 1

1 77 7

0N3132001 1

100.1s 110 17 1 4

4 71 0.05 0.07 1414 138 2

1 75 77 0413012067 1

129 95 1-3 71 1 5

9.2 0 05 006 16.7 1t 1

1 74

4 3512M1201 1

136.93 205.90 5

74 005 005 219 219 I

1 7 7 0

06130007 1

20243 21374 4

4

,4 005 005 254 253 1

1 70 78 3713112001 1

206.95 22040 6 0

7.3 005 0 06 27 25E I

1 7.9 7 9 301312007 I

212 2 22 11 3

3 7.2 20 5 20.33 1

7 9 7 9 0913012007 1

203 57 21600 2

2 7.7 005 a 05 27.0 27.9 1

0 0

8 1013112007 1

19163 21144 3

. 80.

26.1 2G.

1 7 7

? 7 11130,2007 1

187 30 212 03

?

7 a 1 0 0

.a 05 20.3 25.1

1.

0 6

7.0 11.31200;'

1

. 254 I'4.73 5

5 9 1 30 13 7 14 1 1

4 6

O13212001 1

1519.66 1 082 3

3 1

9 35 0 05 10.2 124 2

1 7I e

0G F213112008 1

53 86 115.61 4

4 1

04 0 05 0.05 0.0 1016 1

1 0 6 7

02120120008 1

13512 175 O

cO 7.9 0.0_

0

.0_

14.0 12 3 I

1 2

0 2

0313142009 1

15401 166.35 3.6 30 60a 7.05 0.05 17.2 16.2 I

1

.3 3421.2000 0

1 17194 36 3 2 3.2 7.6 0.05 0.05 21.1 0.9 1

1 0

2 13012008 0

184.53 1930

.0 4

3 29

7.

0_0_

0 05 263 203

2.

2 7.9 79 07131120 1

10163 190 01 2.5 285 1

0 00 O.O 27 3 272 1

0 81 1 1

309 O31200 1

175 la 137.03 5.4 2

5 0.05 0.05 262 207 I

1 0

0 30/312M051 1

169 26 1; "

7 5

5.5 2

.1 0

05 0.06 24.0 20.1 I

0 7.9 7.9 1113031,050 1

122 02 1 1,4.79 1 54 92 0.135 0.05 18 3 2

a 8 4 8 4 1113102000 1

13703 11I0I 3S 39 9

00a 0.5 11.6 2i 1

-1 63

-1 01131=900 1

151.32 171. 2 5.4 n4 9 3 30 4 304 0 01 5.0 7

639 101 103 6

027L812009 1

1351 1204 35, 66 r6 10 0_05 0_

-__ In 1

a a

0313129 1 1

14004 1556 6.5 1

00 0205 126 2B 1

0

.1, 04/300 1

1M014 01 56 4 9 429 0.05 0 05 16 29 1

1 8

32

=

21 i'U0 1 172 51 I1I4 45 7

8.3 21.-.

U1}

1 1

8 1 J

0A0012009 1 1

179.3q 186 44 4

6.

.60 19.?I 222:

1 3

92 0T!3112009 1 1

12." 92 191 36 i 6 U.

-1 4

1G,1075.

71 I

1 0 L1n9IN 13 183.34 233 6 7 3 20 33 20 7 t

1 2

09Corn 0 0

51 126 66 10-55 4 2 1

42 5 4 0 O" 0 s 26 1 26 ?1 10 a a

.3.

10031,1409 1 1

52 26 102.21 16.3 1

53 6.3 23 22,8 01 7,3 7, 8 11130,'2009 I

83 10183 1

1 a3 60 0

1'68 24 0

a

.3 7 3 I Z *3 1 120 09 1

9 1 4 2 169 6 8 a, 5

a. 5

8. T

13. 4, 24 0

0

_7 5

. 6 013.

0 0 1

t 7 6 7169 3 5

,a 30 4 30 Q7 6 149 0 05 1 0.05 7 1 2,

2.

I a 3 0 3 0 MN2

_101 0I '

I 13 s tu 1 66 4 8

,3 5 a.]

5 9 8 r ?

2.3 1

8 3

,33 03# 1/2010 1

12 -,

33 143 6 4 2 I "42 0

1 1

,3 4 8,

04V30)2010 I

10 1 1 15 1

1 167 1.?

1 1

a 1

,1 O r13 1/2010 1

150 1, 1 901 IS

,"- i

, 2 2

1 1

7

, 7 0 6 13 0 /"z 0 1 1

I N -.- 19 0 0 9 4 1 4

4 1 7.3 2 5; 3

3 1;

9 ] 7 9 01,00 1

182 75 132 84 21 26 26 00 05 63 27 7 0

79 4 o

083120 0 1, 1

'08 3 ri

_j 7

]

1 I29 7

2a 6 a_

1 7

it, 09130 f2 O10 t

136 9 2.00

.17 3.6 3.,

7 4 a0 05 I

ad,:

27.8 2 E 7 1

1 6 2 1 6 2 1 0 3 1 2*

0 1 0 1

1 3 1 1 5 1 9 3 3 9 5 ; ý 5 6 1 1 0 0 i 0 -i 2 14 9 2 - 1 I 1

1 a

111 20!

10 1

ISO 97 192. 3

,3 6 1 6 1

.S 1 2

-.0 1 1,; 7 0

"J?

9 ;7 9 1 2 13 1 20 1 0 1

I l 'a

'1'3 12

-*I 4

,

S 1

I 1J.

1 3 2 I

a 01 2 T1 2011 I

F.11ninur 0.0 7.1 8i 21.,"

1,0!

1.0 5.4*

3U.4; 30A4 0.05!

0.05.

5.2i 7.8:

0.0,

0. 0 7.2, 5.6 Maximum 1.(

219.29; m.731 3.5.

8.8 11.9 100.0; 100.0 0.05!

U.07 29.7!

33.01.

2.0; 2.0 8.6, 82 A. f.

t m qg 1 A U.0 14 5.1 17 9.2 1 4.4 :

4.4 8.1 5 38.6 5 3,.6 0

0 1 9.1 ;

22.2 :

1.1 ;

0. 7 8. 11! 7. 9 P il lz I

0 0

,L.

8.0, 8.0 0.092i 0.15E 33.5*6 30.,5 '

3=C, 2'C E.0'

'.I CoM'.

so 01 60 an.

E01 so 3:

3 AIT 42 6D!

6V:

s!

GOl 60!

Gal

APPENDIX 5a - AMBIENT MONITORING DATA AMBIENT MONITORING DATA TENNESSEE RIVER MILE 529.5 WPC STATION ID TENNE529.5RH"

______Sampling Date Avg.__

Parameter Units F05-2.20-7 OM7/200 09-19-2006 05-09-2006 02-01-2006 1109/2005 07-26-2005 0-06-2001 11-14-2000 0g/15/2000 05-15-2000

02. 2000 PH Std. Units 7.7 8.26 7.8 7.68 7.71 7.78 7.3 7.7 7.71 7.65 8.37 7.74 DO mgIL.

6.35 15.83 6.58 6.83 11.74 8.65 12.9 8.4 6.42 7.12 8.58 ECal CFU.Il0ml 1 U 1 Q 1

00U 1 OU 1

O QU 10 1 QU 1.00 Total Hard mgIL 86 29 92 71 44 167 79 72 86 103 74 66.2 79.4 Ammonia mgIL 0.03 U 0.03 U 0.03 U 0.03U 0.03 U 0.03 U 0.03 U 0.02 U 0.02 U 0.07 0.04 0.02 U 0.03 Total Kjeld mg/L 0.15 U 0.15 U 0.15 U 0.15 0.52 0.15 U 0.15 U 0.23 0.18 0.1 U 0.25 0.21 0.21 Asnick u giL 1 U 1OU I U 1 U 1OU 1 U 1 U 1O 1 U 1

1OU IOU 1.00 Cpe t

2.4 1 U I U 3

2 3

2 2

3 2

2 1 U 2.10 L a g 1 U I1 U IU 1

U 1 U 1 U 1 U 1

jIU 1 U 1 U 1.00 Nce gL10 U

10 U 10 U 10 U 10 U 10 U 10U 10 U 10U1U0U0U!1.

-4 C

Q = Received out of holding time U = Anatyte requested but not detected J = Estimated value-result is less than sample quantitation limit but greater than zero

-lz ICOD o2 Do

- n C'3 6 )

-4 0)-.

TVA-Watts Bar Nuclear Plant (Rationale)

NPDES Permit TNO020168 Page R-46 of R-57 APPENDIX 5b - WATER QUALITY BASED EFFLUENT CALCULATIONS WA TER QUALITY BASED CALCULATIONS FOR METALS AND OTHER TOXIC SUBSTANCES OUTFALLa 101 and 113 Combined FACILITY:

Watts BarNudearPiarl PERMIT9: "M002*01.3

'0101 1.

1..~

1j F

To I Sus;a i IaCH O1.

a~

f M1CCI I MODt I 16CDiI 1,d 1m..

11 al Ist 1 2062.00 K,5.O001 206.06 L 6.4 1 80.6 1

90 1

1 2

1

.3 1 ol 1

].

1 fr 1~ 11 1 12 1

13 1

14 siiamr Ftsh~qua.i~fe EffiLa~rr Fish & A rvicLb GURR CaI7Oir M10 Hioarr Healtatar~auaiev Cna lM-15i sckgrr Wow W)rON Crhonr i acio Arvabte IC&. raeryw Cantervnwoonj iSre 7Z~~i ____

~cl Oter, Caraflnfmrrrr C=n.-

er 4Avt*

veetohvd Clvoei I Acit Chrrni: I Acite jOwnimar teK'um[

OWS 0rO~apmisiatre ve/Oraeinmrl MNS4 EFFLUENT CHARACTERISTIC baa/Il lam/Il lua"l I Frmrtrerl

""itt iA I lu-l1 lu-ll

(,.I.n I

lu'In tam/il I vail

lum, Il Antimony 0,0(0 NA RA 1.000 1IA j

.NA NA NA 6M0.0 5.6 6.0 16031.0 140.3 150.3 Arsenic 5.0W 1l%.000 340000 1.0 J0 150.000 340*03 1437.1 3314.3 10.0 I 10.0 10.0 129.7 129.7 129.7 Cadmiwun 010j 0212 1.633 024 0.853 6V58 7.6 64.0 NA NA 50 NA NA 122.7 Chlorine (T. Rea.)

0.000 11.000 19.000 1.000 11.000 19.000 120.8 208.6 NA.

,NA A

NA NA NA Chromium VI 5500 11.000 16.000 1.000 11000 16.00 59.3 109 NA MA 100.0 NA NA 2372.0 Copper' I..

7,44.

0%30

.2 20017 1 308D353, 191.3 228.5 NA NJA RA NA NA NA Cyanide (11 -

2.600 5200 22.000 1.00 5200 I 22.000 28.0 194.0 140.0 140.0 200.0 3444.0 3444.0 4946.9 Lead' 0904 1.988 51.02a 0.189 10.510 269.705 94.9 J 2605.7 NA L NA 5.0 NA NA 101.2 Mercury, 1 "

0.025 0.770 1.00 1.0 0** 0770 1.400 7.38 13.6 0051 I

005 20 0.7 0.6 49.5 Nickel 10.000 43.333 390.143 0.451 911141 865.5-2 860.1 8462.2 4-00 [ 610.0 100.0 114991.0 1-038.0.

2263.4 Selenium 2500 5.000 20000 1.000 5.000 20.000 26.9 175.1 NA NA 50.0 NA NA 1192.0 Slnver 10.000 j NA 2220610 00.01 NA 2220 NA 21 1.9 NA KA.

NA NA NA NA Thatium 0 000 NA 1.000 NA NA NA NA 0.47 L 0.2 20 11.773 6.0 50.1 Zi~nc' 10.1))

MAW0 97610 0.290 3.2.9.462 1 3"2.71S 3165.3 01_38.9 M'A 1 NA.

RA NA NA "NA

Denotes metals for 0hitzn Fish & Aquatic Life Criteria are expressed as a fumicon of total hardness. The Fish & Aquatic Life crte-a foix Os meatal are in :he dissolved form al laboratori concilons The in-strearn a*ttnvjble cterlia aid calculated effluent concentratiorns are in the tvtal recverable.'orm.

The criten a for tese paranneters are in the iotai rfm.

Background cnce.qnors are established' im a"wrbent stream daia. Where a mient data is unavailable orinsrqjincirt tet background concer, *raon is ettabishEd as 112 of Mie chronic water qalithy crter, a,x 112 of ther*mrarin heath crilela, s,,,hiu-heer is mialler.

(Il ;Epecied flow rate for O*utals 101 and 1 13fortwo lint operations (57 71, + 14, 895 = 206 5i MGDI lOTS Wate] Qualij cntera for streani use :assificafiors *ther tan 7rsh & Aquatc Lfe are based on the 3005 1o1.

TVA-Watts Bar Nuclear Plant (Rationale)

NPDES Permit TN0020168 Page R-47 of R-57 APPENDIX 5c - AMMONIA WATER QUALITY BASED CALCULATIONS Watts Bar Nuclear Plant Outfalls 101 and 113 Combined Ammonia as Nitrooen Calculations Tne State utilizes the EPA document, 1999 Update to Ambient '",i3ter Qu ality Crite ria for Ammonia and assumed temperatures o:f 25"r. and 15 ýC and sireamnpH of8 to denve aln anmow~ble instrearn protection-value. A mass balance wih plant and stream flows andthis all*,xable aalue d.et-ermine$ the n onithly average perrmit limit. Seasonal limits may also be allowed due to ambient temperature -variations bet-.%sn the summer and "rinter seasons. d Winter Summer Temp ('C)=

15 Tmp (°C)=

25 pH=

8 pH=

8 Min (2 85 1.45t10 0.028'(25-T)l 2.76 285 2.76 Min (2.85 1.45'10'0.028'(25-T))

1.45 2.85 1.45 CC(

0.05T7 2.467

)

Minl (2.85. 1 45'101 0,0261(25-T),

1+10,* (77 688-pH) 1-10-" (pH-7.688!.

CCC=

2.36 CCC=

1.24 CCC - ContionuouS Chronic Criterion Ailowable instream NH3 concentration [rngmI]

r

,cnk I Low Flow [lMGD] S ackground Armonni ina n,'L]) ý (C:esign Flow [IGD)" Eflguentl Concentration img'L]i

(~critial Lmv*' Flo x[MGDl -

(Design Flow IMG30])

where.

3173.0 Crhial Low Flow EMGD]

(typicall,. a 7010 value) 0.1 Background Ammonnia Concentration [mgtL]

206.7 Discharge long-term average flow [(57.76 + 148.895 )MG0O For the case where the discharger withdraws water from the stream.

The Allowable Effluent Concentrations and corresponding Amounts in winter and slummer are:

Winter Summer 34.8

. Concentration [mg.,L]

. i,67

Concentration [mgL_1 59957.8 Amount [Ibiday]

30290.7 Amount [lb/day]

Calculati on of the Criterion Maximum Concentration where salmanoid fish are absent Note 1 -the CMC is independent of temperature and is based on a one hour average exposure concentration.

East T1,1. 25'C. 15ý Middle Tr. 27'G 1 VWest T1,l-30'C 2C CMC = [0.411/(1 + 10 (7 204-pFH:)] + [(58.4 ;/(1 + 10 (01 -7201j)]

pH=

8 CMC=

8.4 mg.'L as N Allowable effluent Concentration is-127.7 mg:l as N 220014.3 Amount [lbsidayl A pH value of 8 linstead of histoncally used 7.was chosen for two reasons: 1.) ambient monitod n g in west TN showed that a pH often exceeds 7 5. and is up to 8 sometimes 2.1 li s assumptlon is more conservative Note 2 -MAhere the source of ammonia is a biological treatment plant, the permit writer may establish the rnairnum daili concentration at 2 times the 30 day, average instead of the value calculated frorn the CMC The factor of 2 is a ratio of dailly maximLm to monthlý average considered typical foar well operated biological treatment plant.

TVA-Watts Bar Nuclear Plant (Rationale)

NPDES Permit TN0020168 Page R-48 of R-57 APPENDIX 5d - WATER QUALITY CALCULATIONS FOR pH Calculation of Instream pH Resulting From the Combined Discharges of Outfall 101 and 113

ýf"his spreadsheet may be used to calculate allowable discharge pH by trial and errorý Note:

WVPCEPA policy requires all discharges to be within the range of 6.0 to 9,0 TN fish and aquatic life criteria require the stream pH to be within 6.5 to 9.0 This calculation is to determine if a discharge pH at 6.0 can cause the stream pH to fail below 6.5 The calculation is only applicable to cases where the discharge flow is significant relative to the stream flow Enter stream background pH 7

minimum from ambient data (see Appendix 5a)

Enter stream flow in MGD 20 use 1010 Enter discharger minimum pI -"H IZ6i)

Enter discharger flow. MGD 2067 Combined strm.,discharge pH =Unknwn Combined strm!disch flow, MGD 2268 pH = -log [H+]. where [H+l is the hydrogen ion concentration in moles per liter

[H+] = 1 0(-pH) = moles per liter of H+ (1 gram mole per liter of H+ is 1,0080 grams of hydrogeniliter)

Moles H t (Combined) = Moles H+ (Background) + Moles H+ (Discharge)

Note that this is a simple conservation of H1 mass formula that does not account for any rections or buffering that might occur when the discharge and stream mix.

Stream background Molesliter H+ =

10(-pH)

=

5.2E-08 Discharger Moles,"Liter H+ =

i0(-PH)

=

1,00E-06 Combined molesiL H+ =

(Strm molesL H+]*(Strm MGO) + (Disch molesiL. H'-l(Disch MGDI (Stream MGD + Discharge MGD)

Combined moles'L H+ =

L1 366E-07 Combined Stream pH =

6864 If this pH is below.6+5. the discharger minimum pH must be raised, therefore recaluate until 6 5 is reached Because the calculated pH is above 6-5. a minimum discharge pH limit of 6.0 for Outfall 101 and 113 will allow compliance with water quality criteria in the Tennessee River.

TVA-Watts Bar Nuclear Plant (Rationale)

NPDES Permit TN0020168 Page R-49 of R-57 APPENDIX 5e - BIOMONITORING DILUTION FACTORS Watts Bar Nuclear Plant Calculation of Dilution Factors for Biomonitoring Diolution factor when receiving stream is the source of water at the facility Outfall 101 and 102 Stream Flow Wastewater Flow Total Flow 1Q10 [MGD]

[MGD]1

[MGD]

2062.0 57.76 2062 Dilution Factor 35.7 LC50 >

9.3

% Conc.

IC 25 >

2.8

% Conc.

Dilution factor when receiving stream is not the source of water at the facility Outfall 113 Stream Flow Wastewater Flow Total Flow 1Q10 [MGD]

[PMGD1

[NMGD]

2062.0 148.895 2210.9 Dilution Factor 14.8 LC50 >

22.4

% Conc.

IC 25 6.7

% Conc.

Because of the large volume of flow from these Outfalls and the criteria that chronic toxicity not exist instream during any 30 day period, the maximun historic 30 day average discharge flow was used to calculate dilution.

TVA-Watts Bar Nuclear Plant (Rationale)

NPDES Permit TN0020168 Page R-50 of R-57 APPENDIX 5f - COMPARISON OF DISCHARGE LIMITATIONS COMPARISON OF DISCHARGE LIMITATIONS Outfall 101 Month~v Ave age Effluent Guidelines Previous Water QualiW New Effluent Guidelines Previ ous Permit

'Plater Quality Fish I Hum. Heal.

New Pen-nit EFFLUENT CHARACTERISTIC BPT*

BAP PeI i

I ih

[u.Ha.

Pml (mg.L)

I (mgPL)

(mOg.1)

(mgIL)

I (mg,"L)

(mg/U'L TSS 30 30 NA NA 30 OIL & GREASE 15 15 NA NA 15 pH 6.0-9.0 6.5-9.0 6.0-9.0 6.0-9.0 Chromium, Total 0-2 2.99 2.48 Zinc, Total 1.0 3.16 NA 1.0 Total Chlorine Residual 0...

0.1 0.120 NA 0.10 Free AvailableChorine 0.2 0.2 0.120 NA Daily Maximum Effluent GuidelinesW

/ Previous Water Quality New EFFLUENT BPT BAT Permit Fish Hum Heal.

Permit CHARACTERISTIC (mg!L) ra/L) mLi IImg,/L)

(mg'L)

(mg/L)

TSS 100 100 NA NA 100 OIL & GREASE 20 20 NA NA 20 pH 6.0-9.0 6.0-9.0 6.5-9.0 6.5-9.0 6.0-9.0 Chromium, Total 0.2 NA NA Zinc, Total 1.0 3.14 NA I

Total Chlorine Residual 0.2 0.1 0_208 NA 0.10 Free Available Chlorine 0.5 0.5 0.208 NA NA Outfall 101 primarily receives.,astee characterized as low volume wastes and cooling to-wer blowdow;n Thus this discharge is subject BPTi..AT limitations for all parameters applicable to these w.vaste sources as presented ini Appendix 2

"" The use of water treatment chemicals containing chromium is probihited_

TVA-Watts Bar Nuclear Plant (Rationale)

NPDES Permit TNO020168 Page R-51 of R-57 COMPARISON OF DISCHARGE LIMITATIONS Outfall 113 Monthly Average Effluent Guidelinesw Previous Water Quality New Effuent Guidelines*

Previous Water Quality Permit

ý Fish IHum. Heal.

New Permit EFFLUENT CHARACTERISTIC BPT I

BAT (mal L)

I (mGIUI)

(mCD/L)

(mail-)

I ma-11 (maill)

TSS NA E NA Report NA NA Report OIL & GREASE 15 15 NA NA 15 pH 6.0-9.0 6.5-9.0 6.0-9.0 6.0-9.0 Dissolved Oxygen {D.O.)

NA NA Report Min.

Total Chlorine Residual 0.092 0.120 NA 0.092 Free Available Chlorine 0.2 0.12 NA Daily Maximum Effluent Guidelines Previous I Water Quality Permit I

Fish I Hum. Heal.

New Permit EFFLUENT CHARACTERISTIC BPT BAT I

A (mgiL}

I (mg/L)

(mgL)

(mI,"L)

I (mgiL)

I (mg-L)

TS S NA NA 100 N-A NA 100 OIL & GREASE N1 NA 20 NA NA 20 PH 6.0R.e0

0.

0 6.5-920 6.0-9.0 6.0-9.0 Total Chlorine Residual 0.2 0-158 0.208 NA 0.158 Free Available Chlorine 0.5 0.208 NA Outfall 113 receives wastes characterized as once through cooling water. Thus this discharge is subject BPT/BAT limitations for all parameters applicable to once through cooling water sources as presented in Appendix 2

TVA-Watts Bar Nuclear Plant (Rationale)

NPDES Permit TN0020168 Page R-52 of R-57 APPENDIX 5g - New Permit Limits PERMIT LIMITS TVA-Watts Bar Nuclear OUTFALL 101 Cooling Water, Storm Water and Process Wastewater EFFLUENT LIMITATION S MONITORING REQUIREMENTS MONTHLY DAILY EFFLUENT snc. co.c.

.C,

c*

-'T, s.. co.Nc.

1 L.',.

.ILsm.-r.

swu CHARACTERISTIC

,v

'r) dyji MAQ:,cy.

ME FLOW Report (MGD) 1 Report (MGD) 1 Continuous Recorder Certification of Instream Flow of Report as YesT~o 1;Month Operation 3,500 cfs when required Records pH 2 Range 60 -9.0 2,'Month Grab TOTAL SUSPENDED SOLIDS ITSS) 30.0 100.0 1.Month Grab OIL & GREASE 15.0 20.0

,Month Grab CHROMIUM, TOTAL 2.0 20 WAJVED' Grab ZINC, TOTAL 1.0 1.0 24Month Grab CHLORINE, TOTAL RESIDUAL (TRC) 2" 0.10 0.10

,eek Grab TEMPERATURE, Effluent 4 35 1C C.

Continuous Recorder IC25 s 25% Inhibiti on Concentration shall be >2.8% effluent 2.Year Composite There shall be no discharge of PCBs.

Flon, shall be reported in Million Gallons per Day YMGD; In the event that the continuous flow manlier is out of serice flar monitoring shall be estimated by intake pump logs.

pH and TRC analyses shall be performed within fifteen (15J minutes of sample collection The acceptable methods for analysis of TRC are any methods specified in Title 40 CFR Pan 136 as amended The method detection level CMOL";

for TRc shall nat exceed 0.05 mg.-I unless the permittee demonstrates that its MDL is higher. The permnutee shall retain the documentation that justifies the higher 4101L and hae it available for review upon request In cases where the permit limit is less that the MDL. the reporting of TRC at less than the MDL shall be interpreted to constitute compliance n;ith the permit limit. The acceptable methods far detection and reporting of total residual chlorine are referenced in Part I Section B Mtonitoring Procedures subsection 3 Test.Procedures paragraph L When the temperature monitonng equipment fails monitoring Yil be done once per da-i Reasonable and timely effort will be nade to restore the temperature recorder to operation as soon as possible See Part III for further temperature requirements See Part III for methodology.

- Monitoring for chromium is vaived per 40 CFR 12244 b a,(2,il, See Rationale for more comments Monitoring for pH. total suspended solids and oil and grease apply only when the turbine building sump is aligned to bypass Intemal Mionitoring Points 103 and 107 where monitoinng these parameters Is required.

TVA-Watts Bar Nuclear Plant (Rationale)

NPDES Permit TN0020168 Page R-53 of R-57 I

~PERMIT LIMITS TVA-Watts Bar Nuclear OUTFALL 102 Cooling water, Stormwater runoff and Process Wastewater EFFLUENT UMIWflONS MONITORING EFFLUENT LIMITATIONS MONITORING REQUIREMENTS MONTHLY DAILY EFFLUENT

.w'c, coNC.

c n-r.

,Acoc.

.LU.t.*,-.

V,,

T 5XT.

.*l CHARACTERISTIC 03 F(Q49(Vc.

n-M FLOW Report (MGD)

Report (N.G D) 1 11Day Instantaneous Certification oflInstrearn Flow of Reota

=io 1vot Operati on 3,500 cfs when required Report as Yes/No Records pH 2 Range 6.0 -9.0 2;Month Grab TOTAL SUSPENDED SOLIDS (TSS) 30.0 100.0 1Month Grab OIL & GREASE 15.0 20.0 lMontl*

Grab CHROMIUM, TOTAL 2.0 2.0 WAIVED Grab ZINC, TOTAL 1.0 1.0 2Month Grab CHLORINE, TOTAL RESIDUAL (TRC])2, 0.10 0.10 1'Yeek Grab'.

TEMPERATURE, Effluent 35W C

1/Cay Grab IC254

=25%

Inhibition Concentration shall be >2.8% effluent 2,Year:

Composite 4 There shall be no discharge of PCBs.

Flow shall be reported in Million Gallons per Day 1IMGD pH and TRC analyses shall be performed wvithin fteen i151 minutes ofsample collection The acceptable methods for analySis ofTRC are any methods specified in Title 40 CFR Part 131 as amended The method detection le',el (IMOLDl for TRC shall not exceed 0 Ot mg.1 unless the peamittee demonstrates that its MDL is higher. The permittee shall retain the documentation that justifies the higher MDL and have it amailable for re,,iew upon request In cases *-here the permit limit is less that the M.DL [he repoilling ofTRC at less than the MDL shall be interpreted to constitute compliance with the permit limit The acceptable methods for detection and feporting of total residuol chlorine are referenced in Part I Section 8 Monitoring Procedures subsection 3 Test Procedures paragraph b Sampling and analysis required only if discharge is operated 30 days or moar during the seonmiiannual periods January through June or July through Decemberand ifall toxicity testing requirements hve not already been completed for Outfall 101 See Part Ill (tc methodology Certification shall be made during any month that a discharge occurs from this outfall if there is discharge during I or more days from this outfall sampling is required to comply with the maximum daily limit If there are two or more separate day/s of discharge or a continuous discharge during 5 or more consecutrie days from this outfall 2 samples are required to comply oith the measurement Monitoring for chromirum is wae.;ad per 40,FR 122 -4 ia3i2:/II. See Pationai, for mores, Commen*s tMhonltoring for pH, total suspended solids and oil end grease apply only when the turbine building sump is aligned to bypass internal Mon[tonng Points 103 and 107 where monitoring these parameters is required.

TVA-Watts Bar Nuclear Plant (Rationale)

NPIDES Permit TN00201 68 Page R-54 of R-57 IPERMIT LIMITS TVA-Watts Bar Nuclear OUTFALL 103 (Internal Monitoring Point)

Low Volume Waste Holding Pond EFFLUENT LIMITATIONS MONITORING MONTHLY DAILY REQUIREMENTS EFFLUENT tv.c o.Ccc.

.,vc..k-mT. 5L._ coxc. M.X. vAX-r.

msKRT-r.

S.Afu CHARACTERISTIC

Tj I-b d.,)

(meI 5

)

d, FRQ.*CY.

ME FLOW Report (MGD) 1 Report (MGD) 1 Continuous I Recorder pH 2 Range 6.0 - 9.0 1:Month Grab TOTAL SUSPENDED SOLIDS 300 100.0 VIonth Grab (TSS)

OIL & GREASE 150 20.0 1.:tonth Grab Flow shall be reforted in Million Gallons per Day (MGD:.

rH analyses shall be perfomied Aithin fifteen (15, minutes of sample collection I

I PERMIT LIMITS TVA-Watts Bar Nuclear OUTFALL 107 (internal Monitoring Point)

Metal Cleaning Wastewater EFFLUENT LIMITATIONS MONITORING MONTHLY DAILY REQUIREMENTS EFFLUENT AVG. co-..C.

AV.

CN-c

£k.I..AM-r.

r.

I I MT.

SAMPL CHARACTERISTIC

(.0)da qvd,-)

V1rQsc.'

tYPE FLOW Report (MGD)

Report (MGD) l1Batch Calculated pH 2 Report Report 1"Batch 2 Grab TOTAL SUSPENDED SOLIDS 30.0 100.0 1Batch Grab (TSS)

OIL & GREASE 15,0 20.0 l'Batch Grab

[ COPPER, TOTAL RECOVERABLE 1 0 1.0 1Batch Grab IRON, TOTAL RECOVERABLE 1 0 1.0 1:Batch Grab PHOSPHORUS, TOTAL 3 1_

10 1.Batch Grab Floo shall be reported in Million Gallons per Day iMGDI for each batch discharge Ifa batch discharge eanends for more than a 24-pH analyses shall be performed within fitteen (,15; minutes of sample collection.

Sampling for phosphorus is required only when metal cleaning chemicals containing phosFhorus are being used.

TVA-Watts Bar Nuclear Plant (Rationale)

NPDES Permit TNO020168 Page R-55 of R-57 I

~

PERMIT LIMITSI TVA-Watts Bar Nuclear OUTFALL 113 Supplemental Condenser Cooling Water EFFLUENT LIMITATIONS MONITORING MONTHLY DAILY REQUIREMENTS EFFLUENT AVG. Co_*c.

ATCZ*' r

. co.c.

I$PM.ec11.

E1137.

.UF.*

CHARACTERISTIC

(-rj I

-j.-)

(.1-C)

(,,._)

YQ.'-y,.

TYPE FLOW Report (MGO)

Report (MGD) ¶ Continuous Recorder Certification of Instream Flow of Report as YesiTJo 1iMonth Operation 3,500 cfs when required Records pH 2 Range 6.0. 9.0 l/Month Grab TOTAL SUSPENDED SOLIDS ITSS) 30.0 100.0 1.4Month Grab CHLORINE, TOTAL RESIDUAL (TRC)}

5 0092 0.158 11.'Month-Grab DISSOLVED OXYGEN (D.O.)

Report Min.

1Month Grab TEMPERATURE, Effluent Report Effluent Temperature Hourly Recorder' TEMPERATURE, Edge 3

ofMxn-oe

_____J 30.5C Hour.ly Recorder'7 of Mixing Zone TEMPERATURE, Rise U ea3 C

Hourly Calculated' Upstream to Downstream TEMPERATURE, Rate of Change, OC 2 5C/Hour Hourly Calculated"

°C per hour TEMPERATURE, Receiving 33-5'C HolY Recorded Stream Bottom IC25' 25% Inhibition Concentration shall be >6.7% effluent Semi-annual Composite Flow shall be reported in Million Gallons per Day IVMGD0 pH and TRC analyses shall be performed within fifteen (15: minutes ofsample collection The acceptable methods for analysis ofTRC are 3ny methods specified in Title 40 CFIZ Part 136 as amended. The method detection level fMIJDL: for TRC shall not exceed 0.00 mgrinl unless the pemrittae demonstrates that its MDL is higher. The prmiittee shall retain the documentation that justifies the higher MDL and hays it av;aiLable for reviev. upon request. In cases where the permit limit is less that the MDL the reporting of TRC at less than the MDL shall be interpreted to constitute compliance,.ith the permit limit The acceptable methods for detection and reporting of total residual chlorine are referenced in Part I Section B. Monitoring Procedures subsection 3 Teet Procedures paragraph b 4

See text below table for requirements See Part III for methodology Sampling for TRC shall be 5;.Week during perrode when the Supplemental Condenser Cooling WNiater fCCvV; system is in operation See additional (buileted) comments in permit.

TVA-Watts Bar Nuclear Plant (Rationale)

NPDES Permit TN0020168 Page R-56 of R-57 PERMIT LIMITS FOR OUTFALL 114 TVA-Watts Bar Nuclear Supplemental Condenser Cooling Water Intake Screen Backwash water 1.) No numerical monitoring limitations are applied to this outfall.

TVA-Watts Bar Nuclear Plant (Rationale)

NPDES Permit TN0020168 Page R-57 of R-57 APPENDIX 5h - MRZ WATTS BAR DAM Shoreline of river Ihnrpmlinp of II r

rivOrre Lock and docking structure.

TVA-Watts Bar Nuclear Power Generating Facility, TN0020168 Tennessee Ri Flow ver

~Original Zone of Mixing.

10ftatumI SCCW (113) 99 Discharge flow 148.895 MGD.

Current location recorder station

33

...........I.......

......I............

hý-

low-Flow "Passive" Mixing Zone (extends to edge). Cool water refuge-zone in the bottom layer. Model checked with temperature profile under these conditions.

F 00 t7 0 -

1 II

"............../...../~,,flfla /a/t4'¢,,

..CZ tlvzlll~llllllltllllltl illl/!ll High-Flow "Ac ive" Mixing Zone.

Typical monito'ing for compliance using (continuous) 24-hour, 7 day per week data recorders. Recorder station number 33 will be moved from present location to new location and new recorder station number 34 to be established at end-edge of mixing zone.

NOT TO SCALE /

)New recorder Isstation # 34 Exact location to be established.

New location recorder station #

I-Note: This diagram is a general description of how the mixing zone and temperature recorders are being relocated. It is not intended to be an actual, or physical representation of the shape or dynamics of the thermal plume.

ENCLOSURE 2 TENNESSEE VALLEY AUTHORITY WATTS BAR NUCLEAR PLANT, UNITS 1 AND 2 LETTER FROM LINDY JOHNSON (TVA) TO RICHARD URBAN (TDEC),

"TENNESSEE VALLEY AUTHORITY (TVA) - WATTS BAR NUCLEAR PLANT (WBN) - NPDES PERMIT NO. TN0020168 - PERMIT MODIFICATION REQUEST - ADDITION OF UNIT 2 OPERATION,"

DATED AUGUST 17, 2010

Tennessee Valley Authority, 1101 Market Street. ChatlanoOga. Tennessee 37402-2801 August 17, 2010 Dr. Richard Urban, PhD Division of Water Pollution Control Chattanooga Field Office Tennessee Department of Environment and Conservation State Office Building, Suite 550 540 McCallie Avenue Chattanooga, Tennessee 37402

Dear Dr. Urban:

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

NPDES PERMIT NO. TN0020168 - PERMIT MODIFICATION REQUEST - ADDITION OF UNIT 2 OPERATION Enclosed are a signed original and a two-sided copy of a NPDES application packet to revise the NPDES permit to allow for WBN Unit 2 operations. This packet consists of EPA Form 1, site map, Form 2C, Form 2C addendum, flow schematic, and a permit address form.

Also enclosed is a reasonable potential evaluation for whole effluent toxicity. The revisions, which address the planned startup and operation of Unit 2, are discussed below. Sampling for the analytical data provided in this application occurred in May 2010 and historical data were compiled from the period of June 1, 2009, through May 31, 2010.

With respect to wastewater discharges and water intake effects, the changes that will occur are:

1.

Insignificant hydrothermal effects on near-field and far field temperatures and on the operation of the Supplemental Condenser Cooling Water (SCCW) system are expected.

2. Towerbrom treatments for condenser cooling water (CCW) will increase 100 percent; however, TVA anticipates being able to comply with the existing, approved Biocide/Corrosion Treatment Plan (B/CTP).

3. The intake pumping station rate will increase from approximately 52 MGD to approximately 75 MGD, and

4.

A corresponding increase of essential raw cooling water (ERCW) and raw cooling water (RCW) chemical additives will occur.

These changes are discussed in more detail below:

I

Dr. Richard Urban Page 2 August 17, 2010 Ouffalls 101 and 113 Near-field hydrothermal effects from WBN consist of the impact of the heated effluent on the river water temperature in the immediate vicinity of the plant as defined by the assigned mixing zones in the NPDES permit. Even with the previous changes that have been made (e.g., the supplemental condenser cooling water system and new steam generators for Unit

1) and the Reservoir Operations Study changes to the operation of the Tennessee River, updated hydrothermal analyses (discussed in more detail below) confirm that the operation of two units at WBN will not have a significant impact on near-field hydrothermal conditions in the Tennessee River. Because the second cooling tower at WBN will be operational with the startup of Unit 2, effects on water temperatures in the river for two-unit operations can be effectively maintained within the current NPDES Permit limitations for all outfalls without significant adverse impacts on plant operations. Additionally, data from recent field studies support the methods used by TVA to model the dissipation of waste heat in the river, and demonstrate that the patterns of mixing from the outfalls provide ample space for fish passage and the protection of bottom habitat. By virtue of the fact that near-field thermal impacts are insignificant, far-field impacts on Chickamauga Reservoir are also expected to be insignificant. Ongoing activities under the TVA Reservoir Releases Improvement Program and the TVA Vital Signs Monitoring Program would continue to provide close scrutiny of any potential far-field impacts from the WBN effluents.

The dimensions of the Outfall 101 thermal mixing zone (240 feet wide by 240 feet downstream) are based on a physical hydrothermal model test of the diffusers which indicated that sufficient mixing would be achieved at a distance equivalent to roughly the length of the outflow sections of the diffusers (80 feet long for the upstream leg and 160 feet long for the downstream leg). The width of the river at Outfall 101 is approximately 1100 feet; therefore, about 80 percent of the river is available for fish refuge and passage. The designs of the diffusers and mixing zone were based on the operation of both units; therefore, no changes are anticipated for accommodating the operation of Unit 2. However, TVA will perform studies similar to those performed for Unit 1 to confirm the performance of the diffusers with the operation of two units at WBN.

For Outfall 113, two mixing zones have been established in the existing reissued permit to better align monitoring for this outfall with the behavior of the effluent in the receiving stream.

Computations and measurements show that spreading of the effluent varies substantially between conditions with and without flow in the river from Watts Bar Dam. For conditions with dam flow, the effluent tends to reside on the right descending bank and is monitored by an active mixing zone via in-stream temperature monitors. For conditions without dam flow, the effluent can spread across the river and is monitored by the passive mixing zone.

Because the passive mixing zone encompasses areas which must remain clear for navigation, it is checked biannually by TVA (in the winter and summer) by special water temperature surveys rather than in-stream monitors. Outfall 113 is a near-surface discharge, and computations and measurements confirm that the effluent disperses in the surface region of the water column providing ample room for fish passage. TVA does not propose any changes to the dimensions of the Outfall 113 mixing zones with the completion and startup of Unit 2.

TVA has performed an updated hydrothermal analysis of the WBN heat dissipation system for the operation of WBN Unit 2. Two operating cases were considered: (1) Unit 1 only (i.e.,

current, base case conditions) and (2) the combined operation of Unit 1 and Unit 2, with the

Dr. Richard Urban Page 3 August 17, 2010 SCCW system serving only Unit 2. The analysis indicates that, for Outfall 101, maximum hourly downstream temperatures at the edge of the mixing zone do not vary by more than 0.1OF between the base case and Unit 2 operations. These slight changes are well within the bounds of the current NPDES permit. Also, the maximum hourly temperature rise at the edge of the mixing zone does not vary by more than 0.4°F in the spring and winter and 0.1°F in the summer and fall between the two cases. In addition, maximum hourly temperature changes at the edge of the Outfall 101 mixing zone do not vary by more than 0.5 OF in the winter and spring or more than 0.1 0F in the summer and fall between the two cases. For Outfall 113, a similar comparison indicates that the differences are 0.1°F or less for all months with the exception of a predicted increase in the hourly rate of change from 2.4°F to 2.6 0F in April. A more complete discussion of the hydrothermal analysis, including assumptions regarding the flow and temperature of releases from Watts Bar Dam, can be found in Chapter 3 of the Final Supplemental Environmental Impact Statement for the Completion and Operation of Watts Bar Nuclear Plan Unit 2 (June 2007). A copy is enclosed for your convenience.

For Outfall 113, the NPDES permit includes a limitation on the maximum temperature of the receiving stream bottom for the protection of a mussel relocation zone (MRZ). This temperature is not estimated by the WBN hydrothermal model. However, the maximum historical temperature for the MRZ is approximately 84°F, which is well below the permit limit of 92.3 0F. Modeling indicates that the Outfall 113 maximum summer discharge temperature will not increase with two-unit operations. Furthermore, the NRC license temperature limit for the essential raw cooling water (ERCW) intake (downstream approximately 1.3 miles) is expected to be 88 0F. Therefore, in terms of protecting bottom-dwelling organisms, the operation of WBN would be suspended and the heat load from Outfall 113 would be dramatically reduced if the ERCW intake temperature approached 88°F.

TVA requests that the existing permit limitation for Total Residual Chlorine be retained in the modified permit. Although the expected flow rate for Outfall 101 (diffuser discharge) for two unit operation is 57.76 MGD, which is a 23.73 MGD increase over the rate for Unit 1 alone, this is still within the bounds of the condition evaluated for the existing NPDES permit. The discussion of total residual chlorine limitations on page R-1 0 of R-67 of the current permit indicates that the existingconcentration limit of 0.1 mg/L for TRC is considered to be protective of water quality in the Tennessee River at a flow from Outfall 101 of 67.43 MGD which exceeds the expected flow rate for 2-unit operations by a considerable margin.

Similarly, the expected flow rate for Outfall 113 (Supplemental Condenser Cooling Water) for two unit operations is 148.895 MGD compared to the maximum of 178.38 MGD evaluated in the current rationale.

Ouffall 102 There have been no discharges from this outfall since March 2005. Therefore, the EPA Form 2C data for this Outfall are for historical data.

Antidegradation Considerations The withdrawal rate for the intake pumping station located in Chickamauga Reservoir will increase from approximately 52 MGD to 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

Dr. Richard Urban Page 4 August 17, 2010 evaporation) with the remainder returning to the stream via permitted outfalls. The consumption amounts to only 1.3% of the 7Q10 stream flow (3173.3 MGD). Therefore, water withdrawals will continue to be de minimis as described in Rule 1200-4-3.04.

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

The quantities of chemicals used for treatments of intake or process waters must be conducted in accordance with a TDEC-approved Biocide/Corrosion Treatment Plan (B/CTP).

WBN's current B/CTP was approved in 2009. TVA anticipates that this provision will continue in the modified permit and plans to submit a revised B/CTP which addresses the changes in chemical treatments of ERCW and RCW and Towerbrom treatments of CCW for two unit operations at WBN. Approved loadings as described in the current B/CTP are expected to be adequate.

Proposed Whole Effluent Toxicity (WET) Requirements TVA requests that the WET limitations for Outfalls 101,102, and 113 be revised as discussed in the enclosed reasonable potential evaluation.

CWA Section 316(b)

As you are aware, WBN is subject to EPA's Phase II 316(b) regulations which are currently suspended. TVA understands that EPA will issue a draft of the revised Phase II regulation sometime later this year or early next year and has directed the states to base NPDES permit requirements on best professional judgment as has been done in the past. The WBN intake pumping station withdrawal rate from Chickamauga Reservoir for 2-unit operations is commensurate with the original plant design for closed cycle cooling. Therefore, Best Available Technology (BAT) requirements for 316(b) are clearly met for this intake. As reflected on the enclosed Form 2C flow schematic, the maximum expected intake pumping station withdrawal rate for normal 2-unit operations (i.e., for other than accident situations) is 75.024 MGD (52,100 GPM). The calculated through-screen velocity for this flow and a normal summer pool elevation of 683 is 0.464 fps. Please note that this calculation does account for screen guides and supports as well as the wire comprising the mesh of the screens.

TVA submitted biological monitoring data for the WBN SCCW intake that was collected in accordance with the Proposal for Information Collection (PIC) plan as developed under the 316(b) Phase II requirements prior to their suspension by EPA on March 20, 2007. The content of this biological data, due no later than January 7, 2008, was agreed upon during the November 1, 2007, meeting with TDEC. Based on those data, TVA concluded that the WBN SCCW intake was not adversely impacting the fish community in the vicinity of WBN and, in accordance with Part Ill, H of the previous WBN NPDES permit, 316(b) limitations for this facility were determined to be in compliance based on best professional judgment in accordance with CFR 401.43 and 122.43. There have been no changes in the design or operation of the SCCW intake since that time, and the SCCW intake flow rate will not increase as a result of the startup and operation of WBN Unit 2. Therefore, TVA requests a

Dr. Richard Urban Page 5 August 17, 2010 continuation of the current 316(b) BPJ determination pending reissuance of the final Phase II rule.

Water Quality Certification for Nuclear Regulatory Commission (NRC) License TVA requests that the following sentence be inserted in the first paragraph of Part I A.

"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."

TVA believes this would alleviate the need for preparing a separate water quality certification for the NRC.

In order to support the planned startup and operation of WBN Unit 2 in the fall of 2011, TVA requests an expeditious determination of completeness and will be in contact to schedule a meeting in the near future to review the application and to facilitate the development of planning limits, if applicable. In addition, we request concurrent public notices for the draft NPDES permit and the associated public hearing, and that the draft permit be issued by November 30, 2010 if possible. TVA appreciates your consideration of the information provided herein in the development of the reissued permit. If you have any questions regarding this NPDES permit renewal application, please contact Mike Stiefel at (423) 751-6844 in Chattanooga, or you may contact him by email at mbstiefel@tva.gov.

Sincerely, Lindy Johnson, Manager Water Permits and Compliance 5D Lookout Place cc: See Page 6

Dr. Richard Urban Page 6 August 17, 2010 Enclosures cc: Mr. Vojin Janji6, Manager Permit Section Division of Water Pollution Control Tennessee Department of Environment and Conservation 6th Floor, L&C Annex 401 Church Street Nashville, Tennessee 37243

TENNESSEE VALLEY AUTHORITY (TVA) - WATTS BAR NUCLEAR PLANT (WBN) - NPDES PERMIT NO.

TN0020168 - APPLICATION FOR PERMIT MODIFICATION Current Whole Effluent (WET) Toxicity Limits (permit effective 7/1/10):

Outfall 101 -

7-day or 3-brood IC25 > 3.3% effluent (30.3 TUc)

Monitoring Frequency = 2/year Outfall 102 -

7-day or 3-brood IC25 > 3.3% effluent (30.3 TUc)

Monitoring Frequency = 2/year (only if discharge operated > 30 days from Jan. - Jun., or Jul. - Dec. if all toxicity testing has not been completed for Outfall 101) 7-day or 3-brood IC25 > 8% effluent (12.5 TUc)

Outfall 113 -

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

Outfall 101 -

Outfall 102 -

7-day or 3-brood IC25 > 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 IC25 > 2.8% effluent (35.7 TUc)

Monitoring Frequency = 2/year (only if discharge operated ? 30 days from Jan. - Jun., or Jul. - Dec. if all toxicity testing has not been completed for Outfall 101) 7-day or 3-brood IC25 > 6.7% effluent (14.9 TUc)

Monitoring Frequency = 2/year, one during oxidizing biocide treatment and one during non-oxidizing biocide treatment Outfall 113 -

Outfalls 101 and 113:

In accordance with EPA's recommendation (Technical Support Document for Water Quality-based Toxics Control, EPA/505/2-90-001), and incorporating new 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 (TSD), 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) 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 OSN 113 that are specified in the Biocide Corrosion Treatment Plan (BCTP), approved by letter on dated July 30, 2004, 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 sixteen years (33 studies) and eleven years (22 studies) of WET biomonitoring data collected for Outfalls 101 and 113, respectively. Table 1 summarizes Outfall 101 biomonitoring results while Table 2 summarizes Outfall 113 biomonitoring results.

Outfall 102:

Sampling and analysis of Outfall OSN102 has not been required under the current permit or previous permit since the conditions for biomonitoring were not met. No RP determination was made for this Outfall.

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

Acute Results (96-h Survival)

Chronic Results

% Survival in St dS u y Test Date Test Species Highest Study Study Concentration Toxicity IC25 Toxicity Tested Units (TUa)

Units (TUc)

Tested

1. Feb. 2-9, 1994

2. Aug. 26 - Sept. 22, 1994

3. Feb. 1-8, 1995

4. Aug. 9-16, 1995

5. Feb. 23 - Mar. 1, 1996

6. Aug. 22-29, 1996

7. Feb. 19-26, 1997

8. Aug. 12-20, 1997

9. Feb. 24 - Mar. 3, 1998

10. Sept. 16, 1998

11. Mar. 2-9, 1999

12. Sept. 9 - Oct. 6, 1999

13. Apr. 4-11, 2000 Mar. 22-29, 2000

14. Oct. 25 - Nov. 1, 2000 Hypothesis Base NOEC:

Ceriodaphnia dubia 100%

Pimephales promelas 100%

Ceriodaphnia dubia 100%

Pimephales promelas 100%

Ceriodaphnia dubia 100%

Pimephales promelas 98%

Ceriodaphnia dubia 100%

Pimephales promelas 100%

Ceriodaphnia dubia 100%

Pimephales promelas 98%

<1.0

<1.0 10.210 (IC25:<1.0)

>100%

<1.0

<1.0 Ceriodaphnia dubia Pimephales promelas Ceriodaphnia dubia Pimephales promelas Ceriodaphnia dubia Pimephales promelas Ceriodaphnia dubia Pimephales promelas Ceriodaphnia dubia Pimephales promelas Ceriodaphnia dubia Pimephales promelas Ceriodaphnia dubia Pimephales promelas Ceriodaphnia dubia Pimephales promelas Ceriodaphnia dubia Pimephales promelas IC25 Based 89%

100%

80%

100%

0%

100%

0%

98%

100%

90%

100%

98%

100%

>100%

<1.0

>100%

58.0%

<1.0

>100%

30.9%

3.1

>100%

32.4%

3.2

>100%

<1.0 40%

>13.2%

<7.58

>13.2%

<1.0 1.7 3.2

<1.0 3.1 2.5

<7.58

>13.2%

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

Acute Results (96-h Survival)

Chronic Results

% Survival in St dS u y Test Date Test Species Highest Study Study Concentration Toxicity IC25 Toxicity Tested Units (TUa)

Units (TUc)

Tested

15. Apr. 18-25, 2001 Apr. 17-24, 2001

16. Oct. 15-22, 2001

17. Apr. 14-19, 2002 Apr. 28 - May 3, 2002 18 Oct. 22-29, 2002 Oct. 21-28, 2002

19. Apr. 14-21, 2003

20. Nov. 3-10, 2003

21. Apr. 20-27, 2004

22. Nov. 8-13, 2004

23. Apr. 12-19, 2005

24. Nov. 2-9, 2005

25. April 18-25, 2006

26. August 22-29, 2006

27. April 3-10, 2007

28. October 16-23, 2007

29. May 6-13, 2008 Ceriodaphnia dubia Pimephales promelas Ceriodaphnia dubia Pimephales promelas Ceriodaphnia dubia Pimephales promelas Ceriodaphnia dubia Pimephales promelas Ceriodaphnia dubia Pimephales promelas Ceriodaphnia dubia Pimephales promelas Ceriodaphnia dubia Pimephales promelas Ceriodaphnia dubia Pimephales promelas Ceriodaphnia dubia Pimephales promelas Ceriodaphnia dubia Pimephales promelas Ceriodaphnia dubia Pimephales promelas Ceriodaphnia dubia Pimephales promelas Ceriodaphnia dubia Pimephales promelas Ceriodaphnia dubia Pimephales promelas Ceriodaphnia dubia Pimephales promelas 95%

100%

90%

100%

98%

100%

98%

100%

<- 1.00

<7.58

<5.20

>13.2%

12.1%

>13.2%

>19.2%

<.;0O

<7.58

<7.58 8.3

<7.58

<5.20

<5.20 Ono/

>I 1 00/

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

Acute Results (96-h Survival)

Chronic Results

% Survival in St dS u y Test Date Test Species Highest incStudy Study Concentration Toxicity iC25 Toxicity Tested Units (TUa)

Units (TUc)

Tested

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

>19.2%

Pimephales promelas 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%

Pimephales promelas 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 n

66 33 33 Maximum 100%

7.6 8.3 Minimum 0%

1.0 1.00 Mean 95.8%

4.66 4.75

%CV 18.2 55.63 53.47 1Statistical endpoint biased by selection of the dilution series. IC 25 derived from original data.

Current permit was effective July 1, 2010. Shaded area designates data collected during previous permit (Effective Date: November 5, 2004).

Applicable permit limit: IC25 > 2.4%, 42.3 TUc.

Applicable permit dilution series: Control, 1.2%, 2.4%, 4.8%, 9.6%, 19.2%.

Table 2. Summary of WBN Outfall OSNl13 WET Biomonitoring Results:

Acute Results (96-h Chronic Results Survival)

Test Date Test Species

% Survival in Study Study Concentration Toxicity IC25 Toxicity Tested Units (TUa)

Units (TUc)

Tested

1. October 19-26, 1999

2. Apr. 4-11, 2000

3. Oct. 25 - Nov. 1, 2000

4. Apr. 18-25, 2001

5. Oct. 15-23, 2001

6. Apr. 14-19, 2002 Apr. 28 - May 3, 2002

7. Oct. 21-28, 2002

8. Apr. 15-22, 2003

9. Nov. 3-10, 2003

10. Apr. 20-27, 2004

11. Nov. 9-16, 2004

12. Apr. 12-19, 2005

13. Nov. 2-9, 2005

14. April 18-25, 2006 Ceriodaphnia dubia Pimephales promelas Ceriodaphnia dubia Pimephales promelas Ceriodaphnia dubia Pimephales promelas Ceriodaphnia dubia Pimephales promelas Ceriodaphnia dubia Pimephales promelas Ceriodaphnia dubia Pimephales promelas Ceriodaphnia dubia Pimephales promelas Ceriodaphnia dubia Pimephales promelas Ceriodaphnia dubia Pimephales promelas Ceriodaphnia dubia Pimephales promelas Ceriodaphnia dubia Pimephales promelas Ceriodaphnia dubia Pimephales promelas Ceriodaphnia dubia Pimephales promelas Ceriodaphnia dubia Pimephales promelas IC25 Based 100%

98%

90%

100%

98%

100%

93%

100%

98%

100%

93%

100%

98%

100%

98%

100%

>41.2%

<2.43

>41.2%

19.5%

<2.43

>41.2%

<2.43

>41.2%

<2.43 25.1%

>41.2%

<2.43

>41.2%

<2.43 20.0%

>41.2%

<2.43

>41.2%

<2.43

>41.2%

<2.43

>41.2%

<2.43

>41.2%

>30.4%

<3.29

>30.4%

<3.29

>30.4%

<3.29

>30.4%

<3.29

>30.4%

<2.43 5.0

<2.43 4.0

<2.43 5.0

<2.43

<3.29

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

Acute Results (96-h Survival)

Chronic Results Test Date Test Species Sivasin Study Study ConcHighest Toxicity IC25 Toxicity Concentration Units (TUa)

Units (TUc)

Tested

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

>30.4%

Pimephales promelas 100%

<3.29

>30.4%

<3.29

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

>30.4%

Pimephales promelas 100%

<3.29

>30.4%

<3.29

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

>30.4%

Pimephales promelas 100%

<3.29

>30.4%

<3.29

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

>30.4%

Pimephales promelas 100%

<3.29

>30.4%

<3.29

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

>30.4%

Pimephales promelas 100%

<3.29

>30.4%

<3.29

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

>30.4%

Pimephales promelas 100%

<3.29

>30.4%

<3.29

21. November 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%

<3.29

<3.29 Pimephales promelas 100%

>30.4%

N 44 22 22 Maximum 100%

3.29 5

Minimum 90%

2.43 2.43 Mean 99.3%

2.90 3.20

%CV 2.12 15.12 22.96 Current permit was effective July 1, 2010. Shaded area designates data collected during previous permit (Effective Date: November 5, 2004).

Applicable permit limits: IC25 > 7.6%, 13.2 TUc.

Applicable permit dilution series: Control, 1.9%, 3.8%, 7.6%, 15.2%, 30.4%.

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 = 57.76 MGD (based on revised flow schematic)

Stream 1Q10 = 2062 MGD Dilution Factor (DF):

DF= Qs= 2062 =35.71 Qw 57.76 Instream Wastewater Concentration (IWC):

IWC = DF-x 100 = 2.80%

Chronic TOXICITY Step 1 33 WET Biomonitoring Studies, Maximum Observed Toxicity is 8.3 TUc.

[Average toxicity = 4.75 TUc; compliance limit = 42.3 TUc (IC25 > 2.37%

effluent).]

Step 2-3 Coefficient of variation (CV) = 0.53. For > 20 samples and a CV of 0.5, the multiplying factor (99% confidence level and 99% probability) is 2.0.

Step 4 Low river flow = 2062 MGD and WBN Outfall OSN101 discharge = 57.76 MGD = 2.80% Instream Waste Concentration (IWC) after mixing.

At a 0.028 IWC:

8.3 TUc x 2.0 x 0.028 = 0.46 TUc Step 5 0.46 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 current operating conditions.

OSN 113 Reasonable Potential (RP) Determination Based on OSN113 Effluent Data Only Technical Support Document, Text Box 3-2 and Section 3.3 (EPA/505/2-90-001)

DILUTION OSN1 13 Discharge Flow = 148.895 MGD (based on revised flow schematic)

Stream 1Q10 = 2062 MGD Qs+Qw 2062+148.895 Dilution Factor (DF):

DF= Qw _

148.895

-14.85 Qw 148.895

Instream Wastewater Concentration (IWC):

IWC = DF-' x 100 =6.73%

Chronic TOXICITY Step 1 22 WET Biomonitoring Studies, Maximum Observed Toxicity is 5.0 TUc.

[Average toxicity = 3.20 TUc; compliance limit = 13.2 TUc (IC25 - 7.58%

effluent).]

Step 2-3 Coefficient of variation (CV) = 0.23. For > 20 samples and a CV of 0.2, the multiplying factor (99% confidence level and 99% probability) is 1.3.

Step 4 Low stream flow plus WBN Outfall OSN113 discharge = 2210.895 MGD and WBN Outfall OSN113 discharge = 148.895 MGD = 6.73% Instream Waste Concentration (IWC) after mixing.

At a 0.0673 IWC:

5.0 TUc x 1.3 x 0.0673 = 0.44 TUc Step 5 0.44 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 current operating conditions.

Please print or type in the unshaded areas only (fill-in areas are spaced for elite type, I.e., 12 charactersfinch).

Form Approved. OMB No. 2040-0086. Approval expires 5-31-92.

FORM U.S. ENVIRONMENTAL PROTECTION AGENCY

1. LPA I.D. NUMULK IENRA EPA GENERAL INFORMATION F T 264'0'0'3'0' 5

35 D

GEEAConsolidated Permits Program

.D LAENRL IES(Head the "General Instructions" before starting.)

Ni1 2 '

=

R= "'

13 14 15 LABEL ITEMS GNRLISRCIN

-* 'ý

ý X*

N lf a pre printed label has been nprovided, affix in the

.designated space. Review the information care-fully; if any of it is incorrect, cross through it and enter the correct data in the appropriate fill-in area Cl A

below. Also, if any of the preprinted data is absent (the area to the left of the label space lists the in ormation that should appear), please provide it

.F IL in the proper till-in area(s) below. It the label is IL G E

complete and correct, you need not complete Items 1, /Il, V, and VI (except VI-B which must be Completed regardless). Complete all items it no label has been provided. Refer to the instructions for detailed item descriptions and for the legal authorizations under which this data is collected.

I. POLLUTANT CHARACTERISTICS INSTRUCTIONS: Complete A through J to determine whether you need to submit any permit application forms to the EPA. if you answer "yes" to any questions, you must submit this form and the supplemental form listed in the parenthesis following the question. Mark "X" in the box in the third column if the supplemental form is attached. If you answer "no" to each question, you need not submit any of these forms. You may answer "no" if your activity is excluded from permit requirements; see Section C of the instructions. See also, Section D of the instructions for definitions of bold-faced terms.

MARK 'X' MARK 'X' SPECIFIC QUESTIONS YES NO FORM SPECIFIC QUESTIONS YES NO FORM ATTACHED ATTACHED A. IS this tacility a publicly owned treatment works B. Uoes or will this facility eirtner existing or proposed) which results in a discharge to waters of the U.S.?

include a concentrated animal feeding operation or X

(FORM 2A)

X aquatic animal production facility which results in 616 17 18 a discharge to waters of the U.S.? (FORM 2B) 19 20 21 C. IS this a tacility which currently results in discharges D. Is this a proposed tacility (other man those oescnoeo to waters of the U.S. other than those described in X

X in A or B above) which will result in a discharge to X

A or B above? (FORM 2C) 22 23 24 waters of the U.S.? (FORM 2D) 25 26 27 E. Does or will this facility treat, store, or dispose of F. Do you or will you inject at this facility industrial or hazardous wastes? (FORM 3) municipal effluent below the lowermost stratum con-X taining, within one quarter mile of the well bore, X

28 29 30 underground sources of drinking water? (FORM 4) 31 32 33 G. Do you or will you inject at this facility any produced H. Do you or will you inject at this facility fluids for special water or other fluids which are brought to the sur-processes such as mining of sulfur by the Frasch face in connection with conventional oil or natural process, solution mining of minerals, in situ combus-gas production, inject fluids used for enhanced tion of fossil fuel, or recovery of geothermal energy?

recovery of oil or natural gas, or inject fluids for X

(FORM 4)

X storage of liquid hydrocarbons? (FORM 4) 34 35 36 37 38 39

1. Is this tacility a proposed stationary source which is J. IS this tacllity a proposed stationary source which is one of the 28 industrial categories listed in the in-NOT one of the 28 industrial categories listed in the structions and which will potentially emit 100 tons instructions and which will potentially emit 250 tons per year of any air pollutant regulated under the per year of any air pollutant regulated under the Clean Clean Air Act and may affect or be located in an X

Air Act and may affect or be located in an attainment X

attainment area'? (FORM 5) 40 41 42 area'? (FORM 5) 43 44 45 II". NAME OF FACILITY SK"P Ti*,

1 i

i i

i 1

SKIPIT V!A '- WATTS I

'B'AR N.UCLEAR 1PILANTJ IV. FACILITY CONTACT 21NWU T IN A-ME A TITLE (les t. first & ;WitT B. PHO N E area co e no.

TCH I sON DIA, RIRIIINI,C'H'E'M'/IE'N'V MNIGR 4NR 1 2 1 3 13 6 5 81Of15 15T 16 45 46 4 49'-

511 52 55 V. FACILITY MAILING ADDRESS IP.A.TREET OR PBX.

0OX

34SPR, N,

CIT TN 37381...

C. CITY OR TOWN C. STATE

. ZIP CODE TISP I

G TI 3

i3 1 41SIP,'.RiI,N,'G,

,CI,TY, y....

TN 7

7,3,8.11 15116 401 41 421 l

Al VI. FACILITY LOCATION A. TREET. ROUTE NO. 0R OTHER SPECIFIC IDENTIFIER I~ I I

I I I

I I

5"*'HVVY,

,"6 q3

,P

'*0*I

I PLA

,F I

15116 45 1

~~~~B_

COUNTY NAME 46R,H,E,A, I.

I

=

iJ

i.

C. CITY OR TOWN D. STAT E. ZIP CODE F. COUNTY CODE (9 Known) 6S !P !RI. NJ =3

)* 'G r

NI 3,7,3,'8.1 1151161 1 1 1,11 1 1 1,

1 t-t-t-ti t-4o 141'421 47 51' EPIA F-orrn 35l~le-1 ( -90)

CONINUE: ON I'AGEI 2

t".t'lJ1rIi II~fl DI*'mU D&fI* 1 VII. SIC CODES (4401, in order ofrorioyW wow

-AM=

A. FIRST B. SECOND 4,911 ELECTRICAL POWER GENERATION 7

15ll6

'19, 15 16 19 C. THIRD D. FOURTH 7I, 7...1 16 16 19 VIii. OPERATOR INFORMATION 16 191 A. NAME B. Is the name listed as II I

I I I I

I I

tem, VIII-A also the TITENNESSEE VAL LEY AUTHORI T Y owner?

.L I

rI[!:YES,

[-"]NO is_________________________

5 66 C. STATUS OF OPERATOR (Enter the apropriate letter into the answer box: if *Other', specity.j D

DPHONE code n F = FEDERAL M

= PUBLIC (other than federal or state)

(specisy) c I

II I

IIIII S = STATE 0

= OTHER (specify)

A F4

- i2.3 18 P = PRIVATE 56 N151 6181 I1JJ122 25 E. STREET OR P.O. BOX I

I I

I t

II I I

I I

I I i I

I I

i 1 I I

I P-O 13 0i X

? P P0..

26 F. CITY OR TOWN G. STATE H. ZIP CODE IX. INDIAN LAND C

-1 Is thie facility located on Indian lands?

SSP,R~i N G C ITY..,I, TN 3 7 3 8,1 j YES

[FNO ls116 40 41 42 47 51 X EXISTING ENVIRONMENTAL PERMITS A. NPDES 6s har to Surface Water)

D. PSD (Air EMsons Irom Proposed Sources) c NT 00 0 6C

N1._

I N 0,0.

l2

.0,

6 8, i

t 1 i I iI1I1_

Csl TIl I1 Ie 30 IS I6 1

Ie I(

p ciy

!lUl I T, NR, 0, 5, 1, 3, 4, 3, TMSP (STORM WATER) 16116117118 3015 '6157 18 3j C-RCRA (Hadou ats

.OHR(ocf)________________

Cl T1 11 I I T _I _r--

'X E.IiOTI HIP I

l

`44 Spoci4')

I 44815219 TITLE V AIR PERMIT 1511611718 301 1s517118 301 XI, MAP am

!I....

Attach to this application a topographic map of the area extending to at least one mile beyond property boundaries. The map must show the outline of the lacillty, the location of each of its existing and proposed intake and discharge structures, each of its hazardous waste treatment, storage, or disposal lacilities. and each well where It injects fluids underground. Inci. X for precise requirements.

XlI, NATURE OF BUSIS (ride d

a bief doription.

Production of electrical power via thermonuclear fission and associated operations.

Watts Bar Nuclear is located at approximate Tennessee River Mile 528. Units 1 and 2 are each rated to produce 1,270 MW of electncity at tull load.

XIII....

CETFC.O (se intutirs pa w~uimmu 0w00 U,,

1~w rlu~i1~nIlauie r

il ~UWQlU1W haiiei that, based on my inquiry of those persons immediately responsible for obtaining the information contained in the application, I believe that the fine and imonsonment A-NAME & O1FFICIAL TITLE (type or print)

TB C DATE SIGNED Don E. Grissette C

TIN Site Vice President c

Watts Bar Nuclear Plant CMENT IIALU*USE OLY II 11 11 1C 16 I

i #lllli IKl'll/I

I 0

0.4 0.8 1.2 1.6 2 mi 0

0.6 1.2 1.8 2.4 3 km IG M=-4. 1711 G21. 289

EPA I.D. NUMBER (copy from Item I of Form 1)

TN2640030035 Form Approved OMB No. 2040-0086 Anoroval expires 5/31/92 Please Drint or tvDe in the unshaded areas only I U. S. ENVIRONMENTAL PROTECTION AGENCY FORM APPLICATION FOR PERMIT TO DISCHARGE WASTEWATER 2C EPA EXISTING MANUFACTURING, COMMERCIAL, MINING AND SILVICULTURAL OPERATIONS NPDES Consolidated Permits Program I. OUTFALL LOCATION For each outfall list the latitude and longitude of its location to the nearest 15 seconds and the name of the receiving water.

A. OUTFALL B. LATITUDE C. LONGITUDE D. RECEIVING WATER (name)

NUMBER (list)

1. DEG.

2. MIN

3. SEC.

1. DEG.

2. MIN.

3. SEC. 101 35 35 30 84 47 15 TENNESSEE RIVER @-TRM 527.9 102 35 35 45 84 47 30 UNNAMED TRIBUTARY OF TENNESSEE RIVER @-TRM 527.2 IMP 103 35 36 0

84 47 30 TENNESSEE RIVER @-TRM 527.9 via OSN 101 IMP 107 35 36 0

84 47 30 TENNESSEE RIVER @-TRM 527.9 via OSN 101 113 35 35 45 84 46 45 TENNESSEE RIVER @-TRM 529.2 114 35 37 15 84 47 0 TENNESSEE RIVER @-TRM 529.8 1

II. FLOWS, SOURCES. OF POLLUTION. AND TREATMENT TECHNOLOGIES A.

Attach a line drawing showing the water flow through the facility. Indicate sources of intake water, operations contributing wastewater to the effluent, and treatment units labeled to correspond to the more detailed descriptions in Item B. Construct a water balance on the line drawing by showing average flows between intakes, operations, treatment units, and outfalls. If a water balance cannot be determined (e.g., for certain minina activities), provide a pictorial description of the nature and amount of any sources of water and any collection or treatment measures.

B.

For each outfall, provide a description of: (1) All operations contributing wastewater to the effluent, including process wastewater, sanitary wastewater, cooling water, and storm water runoff; (2) The average flow contributed by each operation; and (3) The treatment received by the wastewater. Continue on additional sheets if necessary.

1. OUT-

2. OPERATION(S) CONTRIBUTING FLOW

3. TREATMENT FALL NO

a. OPERATION (list)

b. AVERAGE FLOW

a. DESCRIPTION

b. LIST CODES FROM (list)

(include units)

TABLE 2C-1 OSN 101 Diffuser Discharge (receives the following) 57.76 MGD (1) Yard Holding Pond 1.371MGD Wastes are treated in a 22-acre pond, 1

U a) Turbine Bldg Station Sump (TBSS) alternate path

[0 MGD]

(acreage for 101 and 102 combined) 2 K

b) Cooling Tower Blowdown (CTBD) alternate Path

[0 MGD]

providing sedimentation/neutralization.

4 A

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

[0 MGD]

Discharge through multiport diffuser d) Raw Cooling Water (RCW) alternate path

[0 MGD]

to surface water e) Ice condenser chiller/air coolers alternate path

[0 MGD]

f) Miscellaneous discharges, includes:

[0.7373 MGD]

Non-rad Demin Water discharges to Yard Drains

{0.011 MGD}

Service building sump

{0.020 MGD}

Diesel Generator (D/G) Building Sump

{0.0001 MGD}

Leak collection with oil skimming X

X Emergency D/G Building Sump

{0.0001 MGD)

CCW Pump Station Sump

{0.0001 MGD}

NaOCL Building Sump and Dike

{0.001 MGD}

Sedimentation 1

U High Pressure Fire Protection (HPFP) Flushes

{0.003 MGD}

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]

Filtration to 5 microns for asbestos X

X worker decon

[n]

Filtration to 5 microns for asbestos X

X 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 leakage

{n)

ERCW Strainer backwash (0.108 MGD}

ERCW Traveling Screen backwash (0.0078 MGD}

OFFICIAL USE ONLY (effluent -guidelines sub-cateqodes)

"A" denotes an alternate flow path n - negligible flow EPA Form 3510-2C (8-90)

Page la of 4 Continue on Page 2

EPA I.D. NUMBER (copy from Item 1 of Form 1)

I TN2640030035 Form Approved OMB No. 2040-0086 U. S. ENVIRONMENTAL PROTECTION AGENCY FORM APPLICATION FOR PERMIT TO DISCHARGE WASTEWATER 2C EPA EXISTING MANUFACTURING, COMMERCIAL, MINING AND SILVICULTURAL OPERATIONS NPDES Consolidated Permits Program I. OUTFALL LOCATION For each outfall, list the latitude and longitude of Its location to the nearest 15 seconds and the name of the receiving water.

A. OUTFALL B. LATITUDE C. LONGITUDE D. RECEMNG WATER (name)

NUMBER (list)

1. DEG.

2. MIN

3. SEC.

1. DEG.

2. MIN.

3. SEC.

II. FLOWS. SOURCES, OF POLLUTION. AND TREATMENT TECHNOLOGIES A.

Attach a line drawing showing the water flow through the facility. Indicate sources of intake water, operations contributing wastewater to the effluent, and treatment units labeled to correspond to the more detailed descriptions in Item B. Construct a water balance on the line drawing by showing average flows between intakes, operations, treatment units, and outfalls. If a water balance cannot be determined (e.g., for certain mining activities), provide a pictorial description of the nature and amount of any sources of water and any collection or treatment measures.

B.

For each outfall, provide a description of: (1) All operations contributing wastewater to the effluent, including process wastewater, sanitary wastewater, cooling water, and storm water runoff; (2) The average flow contributed by each operation; and (3) The treatment received by the wastewater. Continue on additional sheets if necessary.

1. OUT-

2. OPERATION(S) CONTRIBUTING FLOW

3. TREATMENT FALL NO

a. OPERATION (list)

b. AVERAGE FLOW

a. DESCRIPTION

b. LIST CODES FROM (list)

(include units)

TABLE 2C-1 OSN 101 j) Low Volume Waste Holding Pond (IMP 103) receives:

[0.3619 MGD]

Unlined 3.7-acre pond with sedimen-1 U

(continued)

Precipitation, Less evaporation

{0.0053 MGD) tation and neutralization 2

K Alum sludge supemate (0.025 MGD) pH adjustment X

X Vendor water treatment RO reject

{0.26 MGD}

Turbine building station sump, receives:

{0.0716 MGD)

Floor drain collection w/oil skimming X

X Metal cleaning wastes 0.0303 MGD Laboratory waste 0.0002 MGD Neutral Waste Tank n

Potable Water Line Leaks 0.0002 MGD System Leakage & Maintenance 0.0399 MGD High Pressure Fire Protection discharges 0.001 MGD k) ERCW Header flushes

[n]

I) Precipitation, Less Evaporation

[0.048 MGD]

m) Cooling tower desilting basin

[0.002 MGD]

Sedimentation 1

U n) Discharge from IMP 107 metal cleaning waste ponds

[0.033 MGD]

Lined pond 1 MG (0.26 acre); unlined 1

U receives:

pond 5 MG (1.3 acre) provides 2

C, K Precipitation, Less Evaporation

{0.002 MGD) sedimentation, precip., neutralization Metal Cleaning wastes (0.0003 MGD)

Storm water runoff (0.0001 MGD)

Drum rinsing (0.0001 MGD)

Drum dewatering

{0.0001 MGD)

Floor drain collection w/oil skimming X

X Diesel cleaning coolant (0.0001 MGD}

Turbine station sump w/metal cleaning wastes (0.0303 MGD}

OFFICIAL USE ONLY (effluent auidelines sub-categories)

"A" denotes an alternate flow path n - negligible flow EPA Form 3510-2C (8-90)

Page lb of 4 Continue on Page 2

EPA I.D. NUMBER (copy from Item I of Form 1)

ITN2640030035 I

Form Approved OMB No. 2040-0086 Approval expires 5/31/92 Please print or type in the unshaded areas only U. S. ENVIRONMENTAL PROTECTION AGENCY FORM APPLICATION FOR PERMIT TO DISCHARGE WASTEWATEF 2C EPA EXISTING MANUFACTURING, COMMERCIAL, MINING AND SILVICULTURAL OPERATIONS NPDES Consolidated Permits Program I. OUTFALL LOCATION/

For each oufal list the latitude and longitude of its location to the nearest 15 seconds and the name of the receivina water.

A. OUTFALL B. LATITUDE C. LONGITUDE D. RECEIVING WATER (name)

NUMBER (list)

1. DEG.

2. MIN

3. SEC.

1. DEG.

2. MIN.

3. SEC.

II. FLOWS. SOURCES. OF POLLUTION. AND TREATMENT TECHNOLOGIES A.

Attach a line drawing showing the water flow through the facility. Indicate sources of intake water, operations contributing wastewater to the effluent, and treatment units labeled to correspond to the more detailed descriptions in Item B. Construct a water balance on the line drawing by showing average flows between intakes, operations, treatment units, and ouffalls. If a water balance cannot be determined (e.g., for certain minina activities), provide a pictorial description of the nature and amount of any sources of water and any collection or treatment measures.

B.

For each outfall, provide a description of: (1) All operations contributing wastewater to the effluent, including process wastewater, sanitary wastewater, cooling water, and storm water runoff; (2) The average flow contributed by each operation; and (3) The treatment received by the wastewater. Continue on additional sheets if necessary.

1. OUT-

2. OPERATION(S) CONTRIBUTING FLOW

3. TREATMENT FALL NO

a. OPERATION (list)

b. AVERAGE FLOW

a. DESCRIPTION

b. LIST CODES FROM (list)

(include units)

TABLE 2C-1 OSN 101 (2) Cooling Tower Blowdown (CTBD), receives:

45.773 MGD (contlnued) 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 Drains, Tanks,

{0.0039 MGD}

and Sumps b) Steam Generator Blowdown

[0.36 MGD]

c) Condensate Denim Cleanup

[0.0010 MGD]

Neutralization 2

K d) Cooling Tower Blowdown Weir

[45.408 MGD]

(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 ChillerNarious Air coolers

[0.400 MGD]

OSN 102 Yard holding Pond Overflow Weir (Emergency 0.000 MGD See Outfall 001 Outfall) - provides an altemate discharge path for the diffuser discharge point (OSN 101)

IMP 103 See description above in OSN 101 0.3619 MGD See Outfall 001 OFFICIAL USE ONLY (effluent guidelines sub-cateqodes)

"A" denotes an alternate flow path EPA Form 3510-2C (8-90)

Page lc of 4 Continue on Page 2

EPA I.D. NUMBER (copy from Item I of Form 1)

ITN2640030035 I

Form Approved OMB No. 2040-0086 Approval expires 5/31/92 Please print or type in the unshaded areas only U. S. ENVIRONMENTAL PROTECTION AGENCY FORM APPLICATION FOR PERMIT TO DISCHARGE WASTEWATEF 2C EPA EXISTING MANUFACTURING, COMMERCIAL, MINING AND SILVICULTURAL OPERATIONS NPDES Consolidated Permits Program I. OUTFALL LOCATION

/

For each outfall, list the latitude and longitude of its location to the nearest 15 seconds and the name of the receiving water.

A. OUTFALL B. LATITUDE C. LONGITUDE D. RECEIVING WATER (name)

NUMBER (list)

1. DEG.

2. MIN

3. SEC.

1. DEG.

2. MIN.

3. SEC.

II. FLOWS, SOURCES, OF POLLUTION, AND TREATMENT TECHNOLOGIES A.

Attach a line drawing showing the water flow through the facility. Indicate sources of intake water, operations contributing wastewater to the effluent, and treatment units labeled to correspond to the more detailed descriptions in Item B. Construct a water balance on the line drawing by showing average flows between intakes, operations, treatment units, and outfalls. If a water balance cannot be determined (e.g., for certain mining activities), provide a pictorial description of the nature and amount of any sources of water and any collection or treatment measures.

B.

For each outfall, provide a description of: (1) All operations contributing wastewater to the effluent, including process wastewater, sanitary wastewater, cooling water, and storm water runoff; (2) The average flow contributed by each operation; and (3) The treatment received by the wastewater. Continue on additional sheets if necessary.

1. OUT-

2. OPERATION(S) CONTRIBUTING FLOW

3. TREATMENT FALL NO

a. OPERATION (list)

b. AVERAGE FLOW

a. DESCRIPTION

b. LIST CODES FROM (list)

(include units)

TABLE 2C-1 IMP 107 Metal Cleaning Waste Ponds (LP and ULP) 0.031 MGD See OSN 101 See description above in OSN 101 OSN 113 Supplemental Condenser Cooling Water 148.895 MGD Discharge to surface water 4

A System (Noncontact Cooling Water)

OSN 114 SCCW Intake screen backwash 0.019 MGD Discharge to surface water 4

A 4

4 4

1 4

4 4

I 4

4 4

4.

4 4

4 4.

4 4

4 4.

DIFFICIAL USE ONLY (effluent guidelines sub-categories)

"A" denotes an alternate flow path EPA Form 3510-2C (8-90)

Page ld of 4 Continue on Page 2

CONTINUED FROM PAGE 1 C. Except for storm runoff, leaks, or spills, are any of the discharges described in Items II-A or B intermittent or seasonal?

r I YES (complete the followinom table)

[7 NO (go to Section III)

3. FREQUENCY

4. FLOW

a. DAYS

b. MONTHS

a. FLOW RATE

b. TOTAL VOLUME

c. DURATION

1. OUTFALL

2. OPERATION(s)

PER WEEK PER YEAR (inm)

(specifywth units)

(in days)

NUMBER CONTRIBUTING FLOW (specify (specify

1. LONG TERM

2. MAXIMUM

1. LONG TERM

2. MAXIMUM (fig (list) average) average)

AVERAGE DAILY AVERAGE DAILY 114 SCCW Intake screen backwash 7

12 1.04 1.04 0.019 1.04 365 Il. PRODUCTION A. Does an effluent gudline limitation promulgated by EPA under Section 304 of the Clean Water Act apply to your facij, YES (complete Item Ill-B)

NO (go to Section IV)

B. Are the limitations, i e applicable effluent guideline expressed In terms of production (or other measure of operatioqj..

EA YES (complete Item Ill-C)IX I NO (go to Section IV)

C. If you answered 'yes" to Item Ill-B, list the quantity which represents an actual measurement of your level of production, expressed in the terms and units used in the applicable effluent guideline, and indicate the affected outfalls.

1. AVERAGE DAILY PRODUCTION

2. AFFECTED

a. QUANTITY PER DAY

b. UNITS OF MEASURE

c. OPERATION, PRODUCT, MATERIAL, ETC.

OUTFALLS (specify)

(list outfall numbers)

IV. IMPROVEMENTS A. Are you now required by any Federal, State or local authority to meet any implementation schedule for the construction, upgrading or operation of wastewater treatment equipment or practices or any other environmental programs which may affect the discharges described in this application? This includes, but is not limited to, permit conditions, administrative or enforcement orders, enforcement compliance schedule letters, stipulations, court orders, and grant or loan conditions.

[-

YES (complete the following table)

Elj NO (go to Item IV-B)

4. FINAL COM-

1. IDENTIFICATION OF CONDITION,

2. AFFECTED OUTFALLS

3. BRIEF DESCRIPTION OF PROJECT PLIANCE DATE AGREEMENT, ETC.

a. NO. b. SOURCE OF DISCHARGE

a. RE-

b. PRO-QUIRED JECTED B. OPTIONAL: You may attach additional sheets describing any additional water pollution control programs (or other environmental projects which may affect your discharges) you now have underway or which you plan. Indicate whether each program is now underway or planned, and indicate your actual or planned schedules for construction.

-"] MARK "X IF DESCRIPTION OF ADDITIONAL CONTROL PROGRAMS IS ATTACHED EPA Form 3510-2C (Rev. 2-85)

Page 2 of 4 Continue on Page 3

EPA I.D. NUMBER (copy from Item I of Form 1)

I EA.

TN2640030035 CONTINUED FROM PAGE 2 V. INTAKE AND EFFLUENT CHARACTERISTICS A, B, & C:

See instructions before proceeding - Complete one set of tables for each outfall - Annotate the outfall number In the space provided.

NOTE: Tables V-A, V-B, and V-C are included on separate sheets numbered V-1 through V-9.

D. Use the space below to list any of the pollutants listed in Table 2C-3 of the instructions, which you know or have reason to believe is discharged or may be discharged from any outfall. For every pollutant you list, briefly describe the reasons you believe it to be present and report any analytical data in your possession.

1. POLLUTANT

2. SOURCE

1. POLLUTANT

2. SOURCE Asbestos Cooling tower Propylene oxide (as ethlyene-oxide - Pr Nalco biodetergent 73551 as cooling propylene oxide copolymer) water additive used as cooling Ethylenediamine (as Ethylenediamine water additive in Training Center tetracetic acid) cooling towers VI. POTENTIAL DISCHARGES NOT COVERED BY ANALYSIS Is any pollutant listed in Item V-C a substance or a component of a substance which you currently use or manufacture as an intermediate or final product or byproduct?

r-L YES (list all such pollutants below)

F NO (go to Item VI-B)

EPA Form 3510-2C (8-90)

Page 3 of 4 Continue on Page 4

CONTINUED FROM PAGE 3 IVII. BIOLOGICAL TOXICITY TESTING DATA WI N

CONTINUED FROM PAGE 3 Do you have any knowledge or reason to believe that any biological test for acute or chronic toxicity has been made on any of your discharges or on a receiving water In relation to your discharge within the last 3 years?

[]

YES (identify the test(s) and describe their purposes below)

F-[ l NO (go to Section VIII)

Semi-annual biotoxicity tests (3-Brood Cerlodaphnia dubia Survival and Reproduction Tests and 7-Day Fathead Minnow (Pimephales promelas) Larval Survival and Growth Tests are conducted on samples of final effluent from Outfall 101, 102. and 113 as required by the NPDES permit.

VID. CONTRACT ANALYSIS INFORMATION Were any of the analyses reported In Item V performed by a contract laboratory or consulting firm?

[E] YES (list the name, address, and telephone nw'nber of, a&d pollutants

[I:] NO (Wo to Secitin iX) an&lzr by. each such laboratcyy or Hirm below)

A. NAME B. ADDRESS C. TELEPHONE D. POLLUTANTS ANALYZED (area code & no.)

(at)

Ironmental Science Corp (ESC) 12065 Lebanon Rd (615) 767-5859 All pollutants except for field parameters Mt Juliet, Tn 37122 (880)767-5859 and low-level mercury were analyzed by ESC Mercury One, LTD 2241 Pinnacle Parkway 330-963-0843 Low-level mercury Twlnsburg, OH 44087 IX. CERTIFICATION I cerlify under penalty of law that this document and all attachments were prepared urnder my directlon or sLperviso in aoooitanoe wft a system designed to assure that qualified personnel property gather Bad evaluate the information submitted. Based on my Inquiry of the person orrpersons who manage Mte system or h*ose persons directy rsponsible for gathering the Infomnatlon, the Information submitted Is, to the best of my kowledge and belief, tue, accurate, and oomplete l am aware that there are signfilcant penalties for submitting fase information, licluding the possifbty of fine and ipriaonmemt for knowy g violations.

A. NAME & OFFICIAL TITLE (type orprint)

B. PHONE NO. (area code & no.)

Don E. Grissette, Site Vice President, WBN (423) 365-8767 C. SIGNATURE D. DATE SIGNED

__9//?,

Ild EPA Form 3510-2C (8-90)

Page 4 of 4

PLEASE PRINT OR TYPE IN THE UNSHADED AREAS ONLY. You may report some or all of em 0

this information on separate sheets (use the same format) instead of completing these pages.

TN2640030035 SEE INSTRUCTIONS.

OUFLL NO.

V. INTAKE AND EFFLUENT CHARACTERISTICS (continued from page 3 of Form 2-C) 101 PART A - You mustvide the results of at least one analysis for every pollutant in this table. Complete one table for each outfall. See instnctione for additional details.

2. EFFLUENT

3. UNITS

4. INTAKE (optional)

1. POLLUTANT

a. MAXIMUM DAILY VALUE

b. MAXIMUM 30 DAY VALUE

c. LONG TERM AVRG. VALUE (specify if blank)

a. LONG TERM (ifavaitab, (ifavaileabe

d. NO. OF AVERAGE VALUE

b. NO. OF (1)

(2) MASS (1)

(2) MASS ANALYSES

a. CONCEN-b, MASS (1)

(2) MASS ANALYSES CONCENTRATION CONCENTRATION CONCENTRATION TRATION CONCENTRATION

a. Biochemical Oxygen Demand

<5 1

mg/L

<5 1

(BOD)

b. Chemical Oxygen Demand 45.0 1

mg/L

<10 1

LCODI

c. Total Organic Carbon (TOC) 1.8 1

mg/L 2.0 1

d. Total Suspended Solids (TSS) 11.0 8.2 13 mg/L 5.1 1

e. Ammonia (as N) 0.11 1

mg/L 0.11 1

VALUE VALUE VALUE VALUE

f. Flow 70.695 28.765 365 MGD 60.48 2

g. Temperature VALUE VALUE VALUE VALUE (winter) 24.0 16.6 182

°C N/A N/A

h. Temperature VALUE VALUE VALUE VALUE (summer) 32.5 27.7 183 C

19.9 2

MINIMUM MAXIMUM MINIMUM MAMU

1. pH 7.0 8.7 1

40 STANDARD UNITS PART B-Ma X In column 2-a for each pollutant you know or Ive reason to beleve is present. Mark in column 2-b for each pollutant you believe t eiyou mark column 2a for any pollutant wch is limited either directly, or indirectly but expressly, in an effluent limitations guideline, you must provide the results of at least one analysis for that pollutant. For other pollutants for which you mark column 2a, you must provide quantitative data or an explanation of their presence in your discharge. Complete one table for each outfalt. See the instructions for additional details and reuirements.

2. MARK W

3. EFFLUENT

4. UNITS

5. INTAKE (optional

1. POLLUT-

a. BE-Ib. BELIEVED

a. MAXIMUM DAILY VALUE

b. MAXIMUM 30 DAY VALUE

c. LONG TERM AVRG. VALUE

a. LONG TERM ANT AND LIEVED

_if waltable)

(ifaval able)

d. NO. OF

a. CONCEN-

b. MASS AVERAGE VALUE

b. NO. OF CAS NO.

PRE-AS-(1)

(2) MASS (11 (2) MASS (1)

(2) MASS ANAL-TRATION (1)

(2) MASS ANAL-available SENT SENT CONCENTRATION CONCENTRATION CONCENTRATION YSES CONCENTRATION YSES a, Bromide (24959-67-9) x

<1.0 1

mg/L

<1.0 1

b. Chlorine, Total Residual x

0.09

<0.05 275 mg/L

<0.05 2

c. Color x

5.0 1

PCU 5

1

d. Fecal Coliform X

NA N/A NA NA

e. Fluorid (169M48-8) x 0.12 1

mg/L 0.12 1

f. Nitrate-Nitrite (as N) x 0.11 1

mg/L 0.11 1

EPA Form 3510-2C (8-90)

Page V-1 CONTINUE ON PAGE V-2

2.

K

3. EFFLUENT

4. UNST_

S INTAKE (antinnal)

1. POLLUT-

a. BE-

b. BE-

a. MAXIMUM DAILY VALUE

b. MAXIMUM 30 DAY VALUE

c. LONG TERM AVRG. VALUE

a. LONG TERM

b. NO. OF ANT AND LIEVED LIEVED (if availabice (ifavailable

d. NO. OF

a. CONCEN-

b. MASS AVERAGE VALUE ANAL-GAS NO.

PRE-AB-(1)

(2) MASS (1)

(2) MASS ANAL-TRATION (1)

(2) MASS YSES (if available)

SENT SENT CONCENTRATION CONCENTRATION CONCENTRATION YSES CONCENTRATION

a. Nitrogen, Total Organic X

0.36 1

mg/L 0.29 1

(as N)

h. Off and Grease X

<5.6

<5.4 13 mg/L

<5.2 1

I. Phosphorus (as P), Total X

<0.1 1

mg/L

<0.10 1

(7723-14-0))

1. Radioactivity (1) Alpha, Total X

<3.25 1

pCi/L

<2.93 1

t2) Beta.

Total X

2.11 1

pCi/L 2.06 1

(3) Radium, Total x

NA NA NA NA NA (4) Radium 226, Total X

NA NA NA NA NA

k. Sulfate (asSO4) x 11 1

mg/L 9.6 1

(1 4808-79-8)

1. Sulfide (asS)

X

<0.05 1

mg/L

<0.050 1

In Sulflte (as SO 3)

X 0.02 0.02 2

mg/L

<0.02 2

(14265-45-3)

n. Surfactants X

<0.10 1

mg/L

<0.10 1

o. Aluminum, Total X

0.68 1

mg/L 0.36 1

(7429-90-5)

p. Barium, Total X

0.028 1

mg/L 0.024 1

(7440-39-3)

q. Boron, Total X

<0.20 1

mg/L

<0.20 1

f744L0-42-6)

r. Co3balt, Total X

<0.0010 1

mg/L

<0.0010 1

(7440-48-41

s. Iron,Total (7439-89-6)

X 0.40 1

mg/L 0.20 1

t. Magnesium, Total X

5.3 1

mg/L 4.7 1

(7439-95-4)

u. Molybdenum, Total X

<0.005 1

mg/L

<0.0050 1

(7439-98-7_

v. Man*anese, Total X

0.037 1

mg/L 0.028 1

(74ag-9--5)

w. Tin, Total (7440-31-5)

X

<0.0010 1

mg/L

<0.0010 1

x. Titanium, Total X

0.01 1

mg/L

<0.010 1

1.r_

_X-19-01 1

001 11 Pane V-2 IIIICNTINF A

EPA I.D. NUMBER (copy from Item I of Form 1) r TN2640030035 OUTFALL NUMBER 101 In-.-

C.-

I -

.^..

I ý PART C -

If you are a primary industry and this outfall contains process wastewater, refer to Table 2c-2 in the Instructions to determine which of the GC/MS fractions you must test for. Mark 'X" in column 2-a for all such GC/MS fractions that apply to your industry and for ALL toxic metals, cyanides, and total phenols. If you are not required to mark column 2-a (secondary industries, nonprocess wastewater outfallsý and nonrequired GOCMS fractions), mark 'X" in column 2-b for each pollutant you know or have reason to believe is present. Mark "X" in column 2-c for each pollutant you believe is absent. If you mark column 2a for any pollutant, you must provide the results of at least one analysis for that pollutant. If you mark column 2b for any pollutant, you must provide the results of at least one analysis for that pollutant if you know or have reason to believe it will be discharged in concentrations of 10 ppb or greater. If you mark column 2b for acrolein, acrylonitrile, 2,4 dinitrophenol, or 2-methyl-4, 6 dinitrophenol, you must provide the results of at least one analysis for each of these pollutants which you know or have reason to believe that you discharge in concentrations of 100 ppb or greater. Otherwise for pollutants for which you mark column 2b, you must either submit at least one analysis or briefly describe the reasons the pollutant is expected to be discharged. Note that there are 7 pages to this part; please review each carefully.

Complete one table (all 7pages) for each outfall. See instructions for additional details and requirements.

1. POLLUTANT

2. MARK 1

3. EFFLUENT

4. UNITS

5. INTAKE (optional)

AND CAS

a. TEST-Ib.BE-r. BE-

a. MAXIMUM DAILY VALUE

b. MAXIMUM 30 DAY VALUE

c. LONG TERM AVRG. VALUE

a. LONG TERM

b. NO. OF NUMBER NG UEVED LIEVED (if available)

(if available)

d. NO. OF

a. CONCEN-

b. MASS AVERAGE VALUE ANAL-(ifavailable) jRE-IPRE-JAB-(1)

(2) MASS (1)

(2) MASS ANAL-TRATION (1) CONCEN-(2) MASS YSES QOUIRED SENT SENT CONCENTRATION CONCENTRATION CONCENTRATION YSES TRATION METALS, CYANIDE, AND TOTAL PHENOLS IM. Antimony, Total (7440-36-0)

X

<0.0010 1

mg/L

<0.0010 2M. Arsenic, Total (7440-38-2)

X

<0.0010 1

mg/L

<0.0010 1

3M. Beryllium, Total, (7440-41-7)

X

<0.0010 1

mg/L

<0.0010 1

4M. Cadmium, Total (7440-43-9)

X

<0.00050 1

mg/L

<0.00050 1

5M. Chromium, Total (7440-47-3)

X

<0.0010 1

mg/L

<0.0010 1

6M. Copper, Total (7440-50-8)

X 0.0011 1

mg/L

<0.0010 1

7M. Lead, Total (7439-92-1)

X

<0.0010 1

mg/L

<0.0010 1

8M. Mercury, Total (7439-97-6)

X

<0.0000008 1

mg/L 1.3E-06 1

9M. Nickel, Total (7440-02-0)

X

<0.0010 1

mg/L

<0.0010 1

10M. Selenium, Total (7782-49-2)

X

<0.0010 1

mg/L

<0.0010 1

11M. Silver, Total (7440-22-4)

X

<0.00050 1

mg/L

<0.00050 1

12M. Thallium, Total (7440-28-0)

X

<0.0010 1

mg/L

<0.0010 1

13M. Zinc, Total (7440-66-6)

X 0.200

<0.051 25 mg/L

<0.010 1

14M. Cyanide, Total (57-12-5)

X

<0.0050 1

mg/L

<0.0050 15M. Phenols, Total X

<0.040 1

mg/L

<0.040 DIOXIN 3,7,8-Tta-X DESCRIBE RESULTS chtorodibenzo-P X

E "WO600I)

Page V-3 CONTINUE ON PAGE

-4

1. POLLUTANT

2. MARK 'A'

3. EFFLUENT

4. UNITS 5 INTAKE (Option 31)

AND CAS

a. TEST-

b. BE-

c. BE-

a. MAXIMUM DAILY VALUE

b. MAXIMUM 30 DAY VALUE

c. LONG TERM AVRG. VALUE

a. LONG TERM

b. NO. OF NUMBER ING LIEVED LIEVED favailable (if available_

d. NO. OF

a. CONCEN-

b. MASS AVERAGE VALUE ANAL-(if available)

PRE-AB-(1)

(2) MASS (1)

(2) MASS ANAL-TRATION (1) CONCEN-(2) MASS YSES Q

SENT SENT CONCENTRATION CONCENTRATION CONCENTRATION YSES TRATION C/

FCTN

- VOLATILE COMPOUNDS (107-02-8)

X

<0.050 1

mg/L

<0.0501 2V. Acrvlonitrile (107-13-1)

X<0.010 1

mg/L

<0.010 1

3V. Benzene (71-43-2)

X

<0.0010 1

mg/L

<0.0010 1

4V. Bis (Chloro-moethyl) Ether X

<0.0010 1

mg/L

<0.0010 1

(542-88-1 1 5V. Bromoform (75-25-2)

X

<0.0010 1

mg/L

<0.0010 1

6V. Carbon Tetrachloride X

<0.0010 1

mg/L

<0.0010 1

WVPhtrbenzene (108-90-7)

X

<0.0010 1

mg/L

<0.0010 1

bV. Chlorodi-bromomethane X

<0.0010 1

mg/L

<0.0010 1

9V.

hla e-hane (75-00-3)

X

<0.0050 1

mg/L

<0.0050 1

10V. 2-Chloro-ethylvinyl Ether X

<0.050 1

mg/L

<0.050 1

(110-75-81 1 IV. Chloroform (67-66-3)

X

<0.0050 1

mg/L

<0.0050 1

12V. Dichloro-bromomethane X

<0.0010 1

mg/L

<0.0010 1

(75-27-4) 13V. Dichloro-difluoromethane X

<0.0050 1

mg/L

<0.0050 1

(75-71-81 14V. 1,1-Dichloro-ethane (75-34-3)

X

<0.0010 1

mg/L

<0.0010 1

15V. 1,2-Dichloro-ethane (107-06-2)

X

<0.0010 1

mg/L

<0.0010 1

16V. 1,1-Dichloro-ethylene (75-35-4)

X

<0.0010 1

mg/L

<0.0010 1

17V. 1,2-Dichloro-propane (78-87-5)

X

<0.0010 1

mg/L

<0.0010 1

18V. 1,3-Dichloro-propylene (542-75-6)

X

<0.0010 1

mg/L

<0.0010 1

19V. Ethylbenzene (100-41-4)

X

<0.0010 1

mg/L

<0.0010 1

20V. Methyl Bromide (74-83-9)

X

<0.0050 1

mg/L

<0.0050 1

21V. Methyl Chloride (74-87-3)

X

<0.005 1

mg/L

<0.005 1

EPA Form 3510-2C (8-90)

Page V-4 CONTINUE ON PAGE V-5

EPA I.D. NUMBER (coov from Item I of Form 1)

OUTFAL L NUMBER CONTINUED FROM PAGE V-4 IT24003 0

1. POLLUTANT

2. MARK W I

EFFLET

4. UNITS

5. INTAKE fontionn I)

AND CAS

a. TEST-b. BE-

c. BE-

a. MAXIMUM DAILY VALUE

b. MAXIMUM 30 DAY VALUE

c. LONG TERM AVRG. VALUE

a. LONG TERM

b. NO. OF NUMBER ING LIEVED EVED 8%

(if available)

d. NO. OF

a. CONCEN-

b. MASS AVERAGE VALUE ANAL-(if available)

RE-PRE-AB-(1)

(2) MASS (1)

(2) MASS ANAL-TRATION (1) CONCEN-(2) MASS YSES QUIRED SENT SENT CONCENTRATION CONCENTRATION CONCENTRATION YSES TRATION GCIMS FRACTION - V ATIL OMPOI iN-Q c

nnUd 22V. Methylene Chloride (75-09-2)

X

<0.0050 1

mg/L

<0.0050 23V. 1,1,2,2-Tetra-chloroethane X

<0.0010 1

mg/L

<0.0010 1

(79-34-5) 24V. Tetrachloro-ethylene (127-18-4)

X

<0.0010 1

mg/L

<0.0010 1

25V. Toluene (108-88-3)

X

<0.0050 1

mg/L

<0.0050 1

26V. 1,2-Trans-Dichloroethylene X

<0.0010 1

mg/L

<0.0010 1

(156-60-5) 27V. 1,1,1-Tri-chloroethane X

<0.0010 1

mg/L

<0.0010 1

(71-55-6) 28V. 1,1,2-Tdi-chloroethane X

<0.0010 1

mg/L

<0.0010 1

(79--5) 29V. Trichloro-ethylene (79-01-6)

X

<0.0010 1

mg/L

<0.0010 1

30V. Trichloro-fluoromethane X

<0.0050 1

mg/L

<0.0050 1

(75-69-4) 31V. Vinyl Chloride (75-01-4)

X

<0.0010 1

mg/L

<0.0010 1

GCIMS FRACTION - ACID COMPOUND 1A. 2-Chlorophenol (95-57-8)

X

<0.040 1

mg/L

<0.010 1

2A. 2,4-Dichloro-phenol (120-83-2)

X

<0.040 1

mg/L

<0.010 1

3A. 2,4-Dimethyl-phenol (105-67-9)

X

<0.040 1

mg/L

<0.010 1

4A. 4,6-Dinitro-O-Cresol (534-52-1) x

<0.040 1

mg/L

<0.010 1

5A. 2,4-Dinitro-phenol (51-28-5)

X

<0.040 1

mg/L

<0.010 1

6A. 2-Nitrophenol (88-75-5) x

<0.040 1

mg/L

<0.010 1

7A. 4-Nitrophenol (100-02-7)

X

<0.040 1

mg/L

<0.010 1

8A. P-Chloro-M Cresol (59-50-7)

X

<0.040 1

mg/L

<0.010 1

9A. Pentachloro-phenol (87-86-5) x

<0.040 1

mg/L

<0.010 1

10A. Phenol (108-95-2)

X

<0.040 1

mg/L

<0.010 1

1 1A. 2,4,6-Tnchloro-phenol (88-06-2) x

<0.040 1

mg/L

<0.010 1

_A Panrm AA41,*2r 1aJ*PA=

L 6

1_

_A2.

MARK 'IC

3. EFFLUENT

4. UNITS

. INTAKE (otionl)

AND CAB

a. TEST-b. BE-Ic. BE-

a. MAXIMUM DAILY VALUE

b. MAXIMUM 30 DAY VALUE

c. LONG TERM AVRG. VALUE

a. LONG TERM

b. NO. OF NUMBER ING LIEVED LIEVED (iffavailable

d. NO. OF a. CONCEN-

b. MASS AVERAGE VALUE ANAL-(if available)

RE-PRE-AB-(1)

(2) MASS (1)

(2) MASS ANAL-TRATION (1) CONCEN-(2) MASS YSES QUIRED SENT SENT ICONCENT CONCENT NATION CONCENTRATION YSES TRATION RE/S FRACTION - BAS EUTRAL COMPOUNDS 1 B. Aonaphthene (83-32-9)

X 1

mg/L

28. Acenaphtytene (208-96-8)

X 1

mg/L

38. Anthracene (120-12-7)

X 1

mg/L 4B. Benzidine (92-87-5)

X I

mg/L

58. Benzo (a)

Anthracene x

1 mg/L (56-55-3) 6B. Benzo (a)

Pyrene (50-32-8)

X 1

mg/L

78. 3,4-Benzo-fluoranthene X

1 mg/L (205-99-2) 8B. Benzo (ohi)

Perylene X

1 mg/L J191-24-2) 9B. Benzo (k)

Fluoranthene X

1 mg/L f207-08-9) 10B. Bis (2-Chloro-othoxy) Methane X

1 mg/L (111-91-1) 11B. Bis (2-Chloro-ethyl) Ether X

1 mg/L

(!111-44-4) 12B. Bis (2-Choro-isopropyt) Ether X

1 mg/L 1102-60-1) 13B. Bis (2-Ethyl-hexyl) Phthalate X

1 mg/L (117-81-7) 14B. 4-Bromo-phenyl Phenyl X

1 mg/L Ether (101-55-3) 158. Butyi Benzvl Phthalate (85-68-7)

X 1

mg/L 1WB 2-Chloo-naphthalene X

1 mg/L (91-58-71 17B. 4-Chloro-phenyl Phenyl x

1 mg/L 18B Cryene (218-01-9)

X 1

mg/L 198. Dibenzo (a.h)

Athracene x

1 mg/L (53-70-31) 20B, 1,2-Dichloro-benzene (95-50-1)

X

<0.001 1

mg/L

<0.001 1

218. 1,3-Dichloro-benzene (541-73-1) x

<0.001 1

mg/L

<0.001 1

O s,--

EPA I.D. NUMBER (coDv from Item I of Form 1)

OUTFAL L NUMBER I

TN2640030035 1

101 CONTINUED FROM PAGE V-6 1,.POLLUTANT

2. MARKW

'X"3.

EFFLUENT

4. U ITS S INTAKE (onbino AND CAS

a. TEST-b. BE-

. BE-

a. MAXIMUM DAILY VALUE

b. MAXIMUM 30 DAY VALUE

c. LONG TERM AVRG. VALUE

a. LONG TERM

b. NO. OF NUMBER ING LIEVED ILIEVED

_f available (if avaflabIe

d. NO. OF

a. CONCEN-

b. MASS AVERAGE VALUE ANAL-(if available)

RE-PRE-AB-(1)

(2) MASS (1)

(2) MASS ANAL-TRATION (1) CONCEN-(2) MASS YSES QUIRED SENT SENT CONCENTRATION CONCENTRATION CONCENTRATION YSES TRATION

CM RCTON. IR L*I/EIRA MPOLI I'tSicantln-d) 22Bi1,4-TiCheloro-benzene (106-46-7)

X

<0.001 1

mg/L

<0.001 2

23B. 3,3'-Dichloro-benzidine X

Phthalate X

Pithalate X

Phthalate X

27.

,4Diitro-toluene (121-14-2)

X 288. 2,6-Oinitro-toluene (606-20-2) x 29B. Di-N-Octvl Phthalate X

W0Bf12-iphenFt-hydrazine (as Azo-X 31.Ffluoranthene (206-44-0)

X 32S. Fkuorene (86-73-7) 33S. H-exachxombenzene (118S-74-1) 34B. Hexa-chloroutadiene X

(87-68-3) 3B. Hexachloro-cyclopentadiene X

Wh7-47-O) ethane (67-72-1)

X 37B. Indeno (1,Z3-cd) Pyrene X

(193--39-51 38B. tsophorone (78-59-1)

X 398. Naphthalene (91-20-3)

X 408. Nirobenzone (98-95-3) x 41B. N-Nitro-sodimethylainie X

Propylarnine X

L621-64-7" 1_1___IIII__

EPA Form 3510-2C (8-90)

Page V-7 CONTINUE ON PAGE V-8

C~ONTINUEEDMP~

FROM_________________________________

PAGE___V___

1. POLLUTAN 2._MARK_"_"_

3. EFFLUENT

4. UNITS 5, INTAKE (opi

_)

AND CAS

a. TEST-b. BE-c-. BE-

a. MAXIMUM DAILY VALUE

b. MAXIMUM 30 DAY VALUE

c. LONG TERM AVRG. VALUE

a. LONG TERM

b. NO. OF NUMBER ING LIEVED LIEVED (if avalable (if available

d. NO. OF a. CONCEN-

b. MASS AVERAGE VALUE ANAL-(if avaiable)

RE-IPRE-AB-(1)

(2) MASS (1)

(2) MASS ANAL-TRATION (1) CONCEN-(2) MASS YSES QUIRED ISEN4T SENT I

CONCENTRATION CONCENTRATION CONCENTRATION YSES TRATION GM9 FRACTnION. H N

TRAL c,Mpou ins fkndnmiuL) 43B. N-Nitro-sodiphenylamine X

(86-30-)-

44B. Phenanthrene (85-01-8)

X 45B. Pyrene (129-00-0)

X 46B. 1,2,4 - Trl-chkorobenzene X

(120-82-1) 1 1

GC/M$ FRACTION - PESTICIDES 1P. AJddn (309-00-2)

X 2P. a-BHC (319-84-6)

X 3P. B -BHC (319-85-7)

X 4P. v-BHC (58-89-9) x 5P. 8 BHC (319-86-8)

X 6P. Chlordane (57-74-9)

X 7P. 4,4'-DDT (50-29-3)

X 8P. 4.4-DDE (72-55-9)

X 9iP. 4,4'-DDD (72-54-8)

X 10P. Dieldrin (60-57-1)

X 11P. ct-Endosulfan (115-29-7)

X 12P. B-Endosulfan (115-29-7)

X 13P. Endosulfan Sulfate X

14P.Endrn (72-20-8)

X 15P. Enddn Akdehyde X

(7421-93-4) 16P. Heptachlor (76-44-8)

X EPA Form 2C-3510 (8-90)

Page V-8 CONTINUE ON PAGE V-9

EPA I.D. NUMBER (coDv from Item 1 of Form I, I

TN2640030035 UU I I-AL L NUMBE:R 1

101 CONTINUED FROM I PAG V-8

1. POLLUTANT

2. MARK

3. EFFLUENT

4. UlilT_

5. INTAKE (option7 11)

AND CAS

a. TEST-BE-

c. BE-

a. MAXIMUM DAILY VALUE

b. MAXIMUM 30 DAY VALUE

c. LONG TERM AVRG. VALUE

a. LONG TERM

b. NO. OF NUMBER ING LIEVED LIEVED (if available (if available)

d. NO. OF AVERAGE VALUE AVERAGE VALUE ANAL-(if available)

RE-PRE-AB-(1)

(2) MASS (1)

(2) MASS ANAL-

a. CONCEN-

b. MASS (1) CONCEN-(2) MASS YSES IIRED SENT I

SENT CONCENTRATION CONCENTRATION CONCENTRATION YSES TRATION TRATION GCIMS FRACTION.

0 TII ES (con

_nud) 17B. Heptachlor Epoxide X

8CB1 242 (53469-21-9)

X 19P. PCB-1254 (11097-69-1)

X 20P. PCB-1221 (11104-28-2)

X 21P. PCB-1232 (11141-16-5)

X 22P. PCB-1248 (12672-29-6)

X 23P. PCB-1260 (11096-82-5)

X 24P. PCB-1016 (12674-11-2)

X 25P. Toxaphene (8001-35-2)

X NOTES:

(1) Natual background radiation levels.

Note: Long term average values from October 1, 2004 through September 30, 2005.

EPA Fonn 3510-2C (8-90)

Page V-9 EPA Form 351 0-2C (8-90)

Page V-9

PLEASE PRINT OR TYPE IN THE UNSHADED AREAS ONLY. You may report some or all of this information on separate sheets (use the same format) instead of completing these pages.

TN2640030035 SEE INSTRUCTIONS.

V. INTAKE AND EFFLUENT CHARACTERISTICS (continued from page 3 of Form 2-C)

Outfall 102 (alt to 10 1)

PART A - You must provide the results of at least one analysis for every pollutant In this table. Complete one table for each outfall. See instructions for additional details.

2. EFFLUENT

3. UNITS

4. INTAKE (optional)

1. POLLUTANT

a. MAXIMUM DAILY VALUE

b. MAXIMUM 30 DAY VALUE

c. LONG TERM AVRG. VALUE (specify if blank)

a. LONG TERM (if avaiblae)

(if avilable)

d. NO. OF AVERAGE VALUE

b. NO. OF (1)

(2) MASS (1)

(2) MASS ANALYSES

a. CONCEN-

b. MASS (1l (2) MASS ANALYSES CONCENTRATION

-CONCENTRATION CONCENTRATION TRATION CONCENTRATION

a. Biochemical Oxygen Demand (BOD)

b. Chemical Oxygen Demand THERE HAVE BEEN NO DISCHARGES FROM OUTFALL 102 SINCE MARCH 2005.

(COD)

c. Total Organic Carbon (TOC)

HISTORICAL MONITORING DATA FOR OUTFALL 102 ARE SHOWN.

d. Total Suspended Solids (TSS) 5.5 5.2 2

mg/L

a. Ammonia (as N)

VALUE VALUE Flow 29.3 17.4 7

MGD

q. Temperature VALUE VALUE (winter) 12.1 11.2 7

C

h. Temperature VALUE VALUE Isummer)

NA NA C

1. pH 7.5 f

8.1 3

STANDARD UNITS PART B -

Mar X in column 2-a for each pollutant you know nor have reason to belle is presentp Mar believe to be absent. If you mark column 2a for any utant which is lmited either directly, or indirectly but expressly, in an effluent limitations guideline, you must provide the results of at least one analysis for that pollutant. For other pollutants for which you mark column 2a, you must provide quantitative data or an explanation of their presence in your discharge. Complete one table for each outfall. See the instructions for additional retails and requirements.

2. MARKX W

3. EFFLUENT

4. UNITS

5. INTAKE (optional)

1. POLLUT-

a. BE-

b. BE-

a. MAXIMUM DAILY VALUE

b. MAXIMUM 30 DAY VALUE

c. LONG TERM AVRG. VALUE

a. LONG TERM ANT AND LIEVED LIEVED

_fa

vailble)

(ffavlable)

d. NO. OF

a. CONCEN-

b. MASS AVERAGE VALUE

b. NO. OF CAS NO.

PRE-AB-(1)

(2) MASS (1)

(2) MASS ANAL-TRATION (1)

(2) MASS ANAL-(if available)

SENT SENT CONCENTRATION CONCENTRATION CONCENTRATION YSES CONCENTRATION YSES

a. Bromide (24959-67-9)

b. Chlorine, Total Residual 0.06 0.03 7

mg/L

c. Color

d. Fecal Coliform

a. Fluoride (16984-48-8)

Nitrate-Nitrite (as N)

EPA Form 3510-2C (8-90)

Page V.1 CONTINUE ON PAGE V-2

T N QFR M AGE -1

2. MARK '147

3. EFFLUENT

4. UNITS

, ItJrAKF (

nl_

1. POLLUT-

a. BE-

b. BE-

a. MAXIMUM DAILY VALUE

b. MAXIMUM 30 DAY VALUE

c. LONG TERM AVRG. VALUE

a. LONG TERM

b. NO. OF ANT AND LIEVED LIEVED (iffavailabvel (ifavafableL

d. NO. OF

a. CONCEN-

b. MASS AVERAGE VALUE ANAL-CAS NO.

PRE-AB-(1)

(2) MASS (1)

(2) MASS ANAL-TRATION (1)

(2) MASS YSES (ifavailable, SENT SENT CONCENTRATION CONCENTRATION CONCENTRATION YSES CONCENTRATION 0 Nitrogen, Total Organic (as

-_)

h. Oil and Grease

<5

<5 2

mg/L I. Phosphorus (asP), Total M'73_1")0I

1. Radioctvit (1) Alpha, Total (2) Beta, Total (3) Radium, Total (4) Radium 226, Total

k. Sulfate (as SO 4)

(14808-79-8')

1. Sulfide (asS) m Sulfte (as S03)

(14265-45-3)

n. Surfactants

o. Aluminum, Total (7429-90-5)

p. Barium, Total (7440-39-3)

q. Boron, Total(74-2-8)

r. Cobalt, Total (7440-48-41

s. IronTotal (7439-89-)

L Magnesium, Total (7439-95*-4 )

u. Molybdenum, Total 17439-98-71

v. Manganese, Total (7439-96-51,

w. Tin, Total (7440-31-5)

x. Titanium, Total

-7441960filirm 1-2C III-P.a V-9 CINTINIF ON

-AL F V'A

EPA I.D. NUMBER (copy from Item I of Form 1)

OUTFALL NUMBER TN2640030035 102 (aIt tn 1011 CONTINUEn FROM PAt~F 2 OF FORM 2.C PART C -

If you are a primary industry and this outfall contains process wastewater, refer to Table 2c-2 in the instructions to determine which of the GC/MS fractions you must test for. Mark "X" in column 2-a for all such GC/MS fractions that apply to your industry and for ALL toxic metals, cyanides, and total phenols. If you are not required to mark column 2-a (secondary industries, nonprocess wastewateroutfalls, and nonrequired GCIMS fractions), mark "X' in column 2-b for each pollutant you know or have reason to believe is present. Mark "X" in column 2-c for each pollutant you believe is absent. If you mark column 2a for any pollutant, you must provide the results of at least one analysis for that pollutant. If you mark column 2b for any pollutant, you must provide the results of at least one analysis for that pollutant if you know or have reason to believe It will be discharged in concentrations of 10 ppb or greater. If you mark column 2b for acrolein, acrylonitrile, 2,4 dinitrophenol, or 2-methyl-4, 6 dinitrophenol, you must provide the results of at least one analysis for each of these pollutants which you know or have reason to believe that you discharge in concentrations of 100 ppb or greater. Otherwise for pollutants for which you mark column 2b, you must either submit at least one analysis or briefly describe the reasons the pollutant is expected to be discharged. Note that there are 7 pages to this part; please review each carefully.

C-oplete one table (all 7 pages) for each outfall. See instructions for additional details and requirements.

1. POLLUTANT

2. MARK

3. EFFLUENT

4. UNITS

5. INTAKE (optional)

AND CA

.a. TEST-T. BE-

c. BE-

a. MAXIMUM DAILY VALUE

b. MAXIMUM 30 DAY VALUE

c. LONG TERM AVRG. VALUE

a. LONG TERM

b. NO. OF NUMBER ING UEVED LIEVED (ffavailable)

(ff available)

d. NO. OF a. CONCEN-

b. MASS AVERAGE VALUE ANAL-(if available)

RE-PRE-AB-(1)

(2) MASS (1)

(2) MASS ANAL-TRATION (1) CONCEN-(2) MASS YSES

_QUIRED SENT SENT CONCENTRATION CONCENTRATION CONCENTRATION YSES TRATION METALS, CYANIDE, AND TOTAL PHENOLS 1M. Antimony, Total (7440-36-0) 2M. Arsenic, Total (7440-38-2) 3M. Beryllium, Total, (7440-41-7) 4M. Cadmium, Total (744043-9) 5M. Chromium, Total (7440-47-3) 6M. Copper, Total (7440-50-8) 7M. Lead, Total (7439-92-1) 8M. Mercury, Total (7439-97-6) 9M. Nickel, Total (7440-02-0) 10M. Selenium, Total (7782-49-2) 11M. Silver, Total (7440-22-4) 12M. Thallium, Total (7440-28-0) 13M. Zinc, Total (7440-66-6) 0.01

<0.01 3

mg/L 14M. Cyanide, Total (57-12-5) 15M. Phenols, Total DIOXIN 2,3b,7,28-Tetra-DESCRIBE RESULTS ch!orodibenzo-P E

80)

Pag eV-3 CONTINUE ON PAGE

.4

1. POLLUT T

2. MARK X

3. EFFLUENT

4. UNITS S. INTAKE (ootion 1)

AND CAS

a. TEST-b. BE-

c. BE-

a. MAXIMUM DAILY VALUE

b. MAXIMUM 30 DAY VALUE

c. LONG TERM AVRG. VALUE

a. LONG TERM

b. NO. OF NUMBER ING LIEVED LIEVED (if available_

(ifavailab/e)

d. NO. OF

a. CONCEN-

b. MASS AVERAGE VALUE ANAL-(if available)

RE-PRE-AB-(1)

(2) MASS (1)

(2) MASS ANAL-TRATION (1) CONCEN-(2) MASS YSES QUIRED SENT SENT CONCENTRATION CONCENTRATION CONCENTRATION YSES TRATION WCML FRACTION - VOLATILE COMPOUNDS IV. Acrolein (107-02-8) 2V. Acrylonitnle (107-13-1) 3V. Benzene (71-43-2) 4V. Bis (Chloro-methyl) Ether (542-88-11 5V. Bromoform (75-25-2) 6V. Carbon Tetrachloride Chorbnzene (108-90-7) 8V. Chlorodi-bromomethane 9V.C thane (75-00-3) 10V. 2-Chloro-ethylvinyl Ether (110-75-81 IIV. Chloroform (67-66-3) 12V. Dichloro-bromomethane (75-27-4) 13V. Dichloro-difluoromethane (75-71-8) 14V. 1,1-Dichloro-ethane (75-34-3) 15V. 1,2-Dichloro-ethane (107-06-2) 16V. 1,1-Dichloro-ethylene (75-35-4) 17V. 1,2-Dichloro-propane (78-87-5) 18V. 1,3-Dichloro-propylene (542-75-6) 19V. Ethylbenzene (100-41-4) 2OV. Methyl Bromide (74-83-9) 21V. Methyl Chloride (74-87-3)

EPA Form 3510-2C (8-90)

Page V-4 CONTINUE ON PAGE V-5

EPA t.D. NUMBER (conv from Item I of Form 1)

I TN2640030035 OUTFAL L NUMBER 102 CONTINUED FROM PAGE V-4 (alt to 101)

1. POLLUTANT "A

MARK

_3.

EFFLUENT

4. UNITS S. INTAKE (oantianp L)

AND CAS TEST-b. BE-c, BE-

a. MAXIMUM DAILY VALUE

b. MAXIMUM 30 DAY VALUE

c. LONG TERM AVRG. VALUE

a. LONG TERM

b. NO, OF NUMBER IING LIEVED LIEVED (if available (if availabile

d. NO. OF

a. CONCEN-

b. MASS AVERAGE VALUE ANAL-(if available)

RE-PRE-AB-(1)

(2) MASS (1)

(2)MASS ANAL-TRATION (1) CONCEN-(2) MASS YSES QUIRED SENT SENT CONCENTRATION CONCENTRATION CONCENTRATION YSES TRATION G.CIUS FRACTIOMN - VC ATLE QOMP01I NS; n

22V. Methylene Chloride (75-09-2) 23V. 1,1,2,2-Tetra-chloroethane (79-34-5) 24V. Tetrachloro-ethylene (127-18-4) 25V. Toluene (108-88-3) 26V. 1,2-Trans-Dichloroethylene (156-60-51 27V. 1,1,1-Tri-chloroethane (71-55-61 28V. 1,1,2-Tri-chloroethane 29V. Trichloro-ethylene (79-01-6) 30V. Trichloro-fluoromethane (75-69-4_

31V. Vinyl Chloride (75-014)

GC/fS FRACTIN -AID COMPOUNDS IA. 2-Chlorophenol (95-57-8) 2A. 2,4-Dichloro-phenol (120-83-2) 3A. 2,4-Dimethyl-phenol (105-67-9) 4A. 4,6-Dinitro-O-Cresol (534-52-1) 5A. 2,4-Dinitro-phenol (51-28-5) 6A. 2-Nitrophenol (88-75-5) 7A. 4-Nitrophenol (100-02-7)

BA. P-Chloro-M Cresol (59-50-7) 9A. Pentachloro-phenol (87486-5) 10A. Phenol (108-95-2) 1 IA. 2,4,6-Tr phenol (88-06-2)

FDA Form '%ft-.

(9 Paae V-5=C ONTINUE 0 4 PAGE V 6

CONTINUED FROM PAGE V-5

1. POLLUTANT

2. MARKWX

3. EFFLUENT

4. UNITS E

-otional)

AND CAS

a. TEST-b. BE-1c. BE-

a. MAXIMUM DAILY VALUE

b. MAXIMUM 30 DAY VALUE

c. LONG TERM AVRG. VALUE

a. LONG TERM

b. NO. OF NUMBER ING LIEVED LIEVED (ifavailable

_ifavaabe

d. NO. OF

a. CONCEN-

b. MASS AVERAGE VALUE ANAL-(if available)

RE-PRE-AB-(1)

(2) MASS (1)

(2) MASS ANAL-TRATION (1) CONCEN-(2) MASS YSES QUIRED ISENT SENT CONCENTRATION CONCENTRATION CONCENTRATION YSES TRATION GC/MS FRACTION -

E/UTRAL CMOUNDS 1lB. Acenaphthene (83-32-9) 2B. Acenaphtylene (208-96-8) 3B. Anthracene (120-12-7) 4B. Benzidline (92-87-5)

51. Benzo (a)

Anthracene (W-55-3*1

68. Benzo (a)

Pyrene (50-32-8) 7B. 3,4-Benzo-fluoranthene (20,,5-99-2) 8B. Benzo (ohi)

Perylene (191-24-2*)

9B. Benzo (k)

Fluoranthene (207-08-9) 10B. Bis (2-Chhoro-ethoxy) Methane (111"91-1) 11B. Bis (2-Chloro-ethyl) Ether (111-44-4) 128. Bis (2-Chloro-isopropyl) Ether (102a-60-1) 13B. Bis (2-Ethvl-hexyl) Phthalate (17- !7, phenyl Phenyl Phthalate (85-68-7) 16B. 2-Chloro-naphthalene

17.

-hloro-phenyl Phenyl Mt'*

&7 0 72-3)

18. hrysene (218-01-9) 19B. Dibenzo (a.h)

Anthracene Y0BA 12-ichloro-benzene (95-50-1) 21B. 1,3-Dichloro-benzene (541-73-1)

-Puge.

901

EPA 1D. NUMBER (coov from Item 1 of Form 1I OUTFAL L NUMBER TN2640030035 1

102 CONTINUED FROtM PAGE V-6 I_____ll

1. POLLUTANT I

2. MARK

_X"

3. EFFLUENT

4. U ITS S-INTAKE (otion. I AND CAS

a. TEST-b. BE-C BE-

a. MAXIMUM DAILY VALUE

b. MAXIMUM 30 DAY VALUE

c. LONG TERM AVRG. VALUE

a. LONG TERM

b. NO. OF NUMBER ING LIEVED LIEVED (if available (if evailable_

c. NO. OF a. CONCEN-

b. MASS AVERAGE VALUE ANAL-(if available)

RE-PRE-AS-(1)

(2) MASS (1)

(2) MASS ANAL-TRATION (1)CONCEN-(2) MASS YSES QUIRED SENT SENT CONCENTRATION CONCENTRATION CONCENTRATION YSES

=TRATIN Zp2B. 1l,4-0 ffhlogro"-DSfolua benzene (106-46-7) 238. 3,3'-Dichlero-benzidina Phthalate Phthalats 26B. Di.-N-Butv Phthalate M7,2,-ilnitro-toluene (121-14-2) 28B. 2,6-Dinitro-toluene (606-20-2) 29B. Di-N-Octvl Phthalate

%LB.1,2-iphenyl.

hydrazine (as Azo-lBFtop anthene (20644-)

32B. FIuoane (86-73-7) 33B. H-exachkorbenen (118-74-1) 34B. Hexa-chlorobutadiene (87-68-3) 15B. Hexachero-

'yPropentadiene ethane (67-72-1) 378. Indeno

'1,2,3-4d Pyrene 38B. Isophorone (78-59-1 )

39B. Naphthalene (91-2D-3)

E 0B. NFtrobenzene (98-95-3) 41 B. N-Nitro-sodimetylerrine i6-759 (621-64-71 EPA Form 3510-2C (8-90)

Page V-7 CONTINUE ON PAGE V-8

CONTINUED FROM PAGE I~~

V-7_____________________________________________

1. POLLUTAN U.MR'X'

3. EFFLUENT

4. UNITS 5, INTAKE (ptionj

_)

AND CAS

a. TEST-lb. BE-ic. BE-

a. MAXIMUM DAILY VALUE

b. MAXIMUM 30 DAY VALUE

c. LONG TERM AVRG. VALUE

a. LONG TERM

b. NO. OF NUMBER ING LIEVED LIEVED (if availableI (if availabe

d. NO. OF

a. CONCEN-

b. MASS AVERAGE VALUE ANAL-(if available)

RE-PRE-AB-(1)

(2) MASS (1)

(2) MASS ANAL-TRATION (1) CONCEN-(2) MASS YSES QUIRED SENT SENT I

CONCENTRATION CONCENTRATION CONCENTRATION YSES TRATION ITRAL C IMPOU IDS (continued)l 43B. N-Nftro-sodiphenylamine (86-30-6) 44B. Phenanthrene (85-"1-8) 45B. Pyrene (129-00-0) 46B. 1,2,4 - Tn-chlorobenzene (120-82-1)

GC/MS FRACTION - PESTICIDES I

IP. AIdrin (309-00-2) 2P. a-BHC (319-84-6) 3P. B -BHC (319-85-7) 4P. v-BHC (58-89-9) 5P. &- BHC (319-86-8) 6P. Chlordane (57-74-9) 7P. 4,4'-DDT (50-29-3) 8P. 4,4-DDE (72-55-9) 9P. 4,4'-DDD (72-54-8) 10P. Dieldrin (60-57-1) 11P. a-Endosuffan (115-29-7) 12P. 8-Endosulfan (115-29-7) 13P. Endosuffan Suffate W 103 1 8 14P. Endrin (72-20-8) 15P. Endrin Aldehyde (7421-93-41 16P. Heptachlor (76-44-8)

EPA Form 2C-3510 (8-90)

Page V-8 CONTINUE ON PAGE V-9

EPA I.D. NUMBER (coDy from Item 1 of Form 1; I

TN2640030035 UU I-AL L NUMBER 102 I

CONTINUED FROM PAGE* V-8 10lt t191

1. POLUTAN I

2. MARK 1

3. EFFLUENT 1

4. UtITt

5. INTAKE otoo AND CAS

a. TEST-b. BE-

c. BE-

a. MAXIMUM DAILY VALUE

b. MAXIMUM 30 DAY VALUE

c. LONG TERM AVRG. VALUE

a. LONG TERM

b. NO. OF NUMBER ING LIEVED LIEVED

_____i___f available (if avai/abkeI

d. NO. OF AVERAGE VALUE AVERAGE VALUE ANAL-(if available)

RE-PRE-AB-(1)

(2) MASS (1)

(2) MASS ANAL-

a. CONCEN-

b. MASS (1) CONCEN-(2) MASS YSES

_QUIRED SENT SENT CONCENTRATION CONCENTRATION CONCENTRATION YSES TRATION TRATION 7

Q0/M FR IN ISTICIF ES [can Uinuad) 17B. Heot'achlor E-poxide l1 24

- 5 7 -3 8P PC-242 (53469-21-9) 19P. PCB-1254 (11097-69-1 )

20P. PCB-1221 (11104-28-2) 21P. PCB-1232 (11141-16-5) 22P. PCB-1248 (12672-29-6) 23P. PCB-1260 (11096-82-5) 24P. PCB-1016 (12674--11--2) 25P. Toxaphene (8001-35-2)

NOTES:

(1) Natual background radiation levels.

Note: Long term average values from October 1, 2004 through September 30, 2005.

EPA Form 3510-2C (8-90)

Page V-9

P'LEASE PRINT OR TYPE IN THE UNSHADED AREAS ONLY. You may report some or all of tZ I..NM COYfop m iem 7OftrM) this information on separate sheets (use the same format) instead of completing these pages.

TN2640030035 PEASE INT OR T

PON OUTFALL NO.

V. INTAKE AND EFFLUENT CHARACTERISTICS (continued from page 3 of Form 2-C) 113 PART A - You must provide the results of at least one analysis for every pollutant in this table. Complete one table for each outfall. See instructions for additional details.

2. EFFLUENT

3. UNITS

4. INTAKE (ogtional/

1. POLLUTANT

a. MAXIMUM DAILY VALUE

b. MAXIMUM 30 DAY VALUE

c. LONG TERM AVRG. VALUE (specify if blank)

a. LONG TERM (If avaflable)

(if available)

d. NO. OF AVERAGE VALUE

b. NO. OF (1) 1P11(2)1 (2)MASS

11)

(2)MASS ANALYSES a CONCEN-b.MASS I1)(2)

MASS ANALYSES CONCENTRATION CONCENTRATION

-CONCENTRATION TRATION CONCENTRATION

a. Biochemical Oxygen Dernm

<5.0 1

mg/L

.Chm ical Oxygen Demand 39 1

mg/L

c. Total Organic Carbon (TOC) 2.1 1

mg/L

d. Total Suspended Solids (TSS) 8.8 4.9 14 mg/L

e. Ammorea (as N)

<0.10 1

mguL VALUE VALUE VALUE VALUE f.Flow 191.360 NA 129.350 365 MGD

g. Temperature VALUE VALUE VALUE VALUE (winter) 22.8 NA 11.5 182

°C

h. Temperature VALUE VALUE VALUE VALUE (summer) 28.7 NA 23.0 183 C

MINIMUM MAXIMUM MINIMUM MAXIMUM pH 7.3 8.8 17 STANDARD UNITS PART B -

Ma X in column 2-a for each pollutant you know or nave reason to believe Is present. Mark "e in column -

you a

eve to be absent. If you mark column 2a for any pF lutant which is limited either directly, or indirectly but expressly, in an effluent limitations guideline, you must provide the results of at least one analysis for that pollutant. For other pollutants for which you mark column 2a, you must provide quariive dataor an explanation of their presence In your discharge. Complete one table for each outfall. See the instructions for additional details and re qurements.

2. MARK'X`

3. EFFLUENT I

4. UNITS

5. INTAKE (optional)

1. POLLUTi

a. SE-

b. BE-

a. MAXIMUM DAILY VALUE Ib. MAXIMUM 30 DAY VALUE

c. LONG TERM AVRG. VALUE

a. LONG TERM ANT AND LIEVED LIEVED (if avalable (i__available)

d. NO. OF a. CONCEN-

b. MASS AVERAGE VALUE

b. NO. OF CAS NO.

PRE-AS-(1)

(2) MASS (2) MASS (1)

(2) MASS ANAL-TRATION (1)

(2) MASS ANAL-(if available SENT SENT CONCENTRATION CONCENTRATION CONCENTRATION YSES CONCENTRATION YSES

a. Bromide (24959-67-9) x

<1.0 1

mg/L

b. Chlorine, Total Residual x

<0.050

<0.05 262 mg/L

c. Color x

5.0 1

PCU

d. Fecal Coltform x

NA

e. Fluoride (16984-48-8)

X 0.12 1

mg/L

f. Nitrate-Nitrite (as NV) x

<0.10 1 1mg/L EPA Form 3510-2C (8-90)

Page V-1 CONTINUE ON PAGE V-2

.-MARK 1

3. EFFLUENT

4. UNITS 5-INTAKE (ntiopnll

1. POLLUT-

a. BE-

b. BE-

a. MAXIMUM DAILY VALUE

b. MAXIMUM 30 DAY VALUE

c. LONG TERM AVRG. VALUE

a. LONG TERM

b. NO. OF ANT AND LIEVED LIEVED (ifavaIab (ifavalabe

d. NO. OF

a. CONCEN-

b. MASS AVERAGE VALUE ANAL-CAS NO.

PRE-AB-(1)

(2) MASS (1)

(2) MASS ANAL-TRATION (1)

(2) MASS YSES (if available)

SENT SENT CONCENTRATION CONCENTRATION CONCENTRATION YSES CONCENTRATION

.Nitrogen, Total Organic X

0.28 1

mg/L (as N)

h. Oil and Grease X

<57 1

mg/L

1. Phosphorus (asP), Total X

<0.10 1

mg/L (7723-14-01 Radioactivity (1) Alpha, Total X

<3.20 1

pCi/L

12) Beta, Total X

<2.11 1

pCi/L (3) Radium, Total X

(4) Radium 226, Total X

k. Sulfate (asSO4)

X

10.

1 mg/L I. Sulfide (as S)

X

<0.050 1

mg/L m Sulfite (as SO 3)

X

<0.020

<0.020 2

mg/L (14265-45-3)

n. Surfactants X

<0.10 1

mg/L

o. Aluminum, Total x

0.37 1

mg/L (7429-90-5)

p. Barium, Total x

0.025 1

mg/L (7440-39-3)

q. Boron, Total X

<0.20 1

mg/L

'7440-42-8)

r. Cobalt, Total X

0.0010 1

mg/L (7440-48-41

a. Iron,Total (7439-89-6)

X 0.19 1

mg/L L Magnesium, Total X

5.0 1

mg/L (7439-954)1

u. Molybdenum, Total X

<0.0050 1

mg/L (743*9-98-7)

v. Marnanese, Total X

0.020 1

mg/L (74:*96-5i

w. Tin, Total (7440-31-5)

X 0.0020 1

mg/L

x. Titanium, total X

<0.010 1

mg/L k7440Wl*m 31 10-2C 18101 1

P... V-7 I

CNTINUEF ON

-AG V

EPA I.D. NUMBER (copy from Item 1 of Form 1)

OUTFALL NUMBER TN2640030035 113 CONTINUED FROM PAGE 3 OF FORM 2-C PART C -

If you are a primary industry and this outfall contains process wastewater, refer to Table 2c-2 in the Instructions to determine which of the GC/MS fractions you must test for. Mark X" in column 2-a for all such GC/MS fractions that apply to your industry and for ALL toxic metals, cyanides, and total phenols. If you are not required to mark column 2-a (secondary industries, nonprocess wastewater ouffalls, and nonrequired GC/MS fractions), mark "X" in column 2-b for each pollutant you know or have reason to believe is present. Mark "X" in column 2-c for each pollutant you believe is absent. If you mark column 2a for any pollutant, you must provide the results of at least one analysis for that pollutant. If you mark column 2b for any pollutant, you must provide the results of at least one analysis for that pollutant If you know or have reason to believe it will be discharged in concentrations of 10 ppb or greater. If you mark column 2b for acrolein, acrylonitrile, 2,4 dinitrophenol, or 2-methyl-4, 6 dinitrophenol, you must provide the results of at least one analysis for each of these pollutants which you know or have reason to believe that you discharge in concentrations of 100 ppb or greater. Otherwise for pollutants for which you mark column 2b, you must either submit at least one analysis or briefly describe the reasons the pollutant is expected to be discharged. Note that there are 7 pages to this part; please review each carefully.

Complete one table (all 7pages) for each outfall. See instructions for additional details and requirements.

1. POLLUTANT

2. MARK W

3. EFFLUENT

4. UNITS

5. INTAKE (optional)

AND CAS

a. TEST-rb. BE-

c. BE-

a. MAXIMUM DAILY VALUE

b. MAXIMUM 30 DAY VALUE

c. LONG TERM AVRG. VALUE

a. LONG TERM

b. NO. OF NUMBER ING L

IEVED (Ifavallable)

(if avallable)

d. NO. OF

a. CONCEN-

b. MASS AVERAGE VALUE ANAL-(if available)

RE-PRE-ABl-(1)

(2) MASS (1)

(2) MASS ANAL-TRATION (1) CONCEN-(2) MASS YSES

_QUIRED SENT ISENT CONCENTRATION CONCENTRATION CONCENTRATION YSES TRATION METALS, CYANIDE, AND TOTAL PHENOLS IM. Antimony, Total (7440-36-0)

X

<0.0010 1

mg/L 2M. Arsenic, Total (7440-38-2)

X 0.0014 1

mg/L 3M. Beryllium, Total, (7440-41-7)

X

<0.0010 1

mg/L 4M. Cadmium, Total (7440-43-9)

X

<0.00050 1

mg/L 5M. Chromium, Total (7440-47-3)

X

<0.0010 1

mg/L 6M. Copper, Total (7440-50-8)

X 0.0018 1

mg/L 7M. Lead, Total (7439-92-1)

X

<0.0010 1

mg/L 8M. Mercury, Total (7439-97-6)

X 0.0000015 1

mg/L 9M. Nickel, Total (7440-02-0)

X 0.0010 1

mg/L 10M. Selenium, Total (7782-49-2)

X

<0.0010 1

mg/L 1IM. Silver, Total (7440-22-4)

X

<0.00050 1

mg/L 12M. Thallium, Total (7440-28-0)

X 0.0020 1

mg/L 13M. Zinc, Total (7440-66-6)

X 0.013 1

mg/L 14M. Cyanide, Total (57-12-5)

X

<0.0050 1

mg/L 15M. Phenols, Total X

<0.040 1

mg/L DIOXIN 2,3,7c,8-obn-p208Tetra X

DESCRIBE RESULTS rodibenzo-P X

E Pag eV-3 CONTINUE ON PAGE

.4

1. POLLUTANT 2

3. EFFLUENT

4. UNITS S. iNTAKE taohbr 91)

AND CAS

a. TEST-b. BE-

c. BE-

a. MAXIMUM DAILY VALUE

b. MAXIMUM 30 DAY VALUE

c. LONG TERM AVRG. VALUE

a. LONG TERM

b. NO. OF NUMBER ING LIEVED LIEVED (ifavailabie (ifavailable

d. NO. OF

a. CONCEN-

b. MASS AVERAGE VALUE ANAL-(ifavailable) iRE-PRE-AB-(1)

(2) MASS (1)

(2) MASS ANAL-TRATION (1) CONCEN-(2) MASS YSES IURE_ _SENT ISENT CONCENTRATION CONCENTRATION CONCENTRATION YSES TRATION GCIMS FRACTION -VOLATILE COMPOUNDS 1V. Acrolein (107-02-8)

X

<0.050 1

mg/L 2V. Acrytonitrile (107-13-1)

X

<0.010 1

mg/L 3V. Benzene (71-43-2) x

<0.0010 1

mg/L 4V. Bis (Chloro-methyl) Ether X

<0.0010 1

mg/L 5V. Bromoform (75-25-2)

X

<0.0010 1

mg/L 6V. Carbon Tetrachloride X

<0.0010 1

mg/L 7V.

hlooanzerve (108-90-7)

X

<0.0010 1

mg/L 8V. Chlorodi-bromomethane X

<0.0010 1

mg/L 9vMhroetane_

(75-00-3)

X

<0.0050 1

mg/L 10v. 2-Chloro-ethylvinyl Ether X

<0.050 1

mg/L (110q-7")

11V. Chloroform (67-66-3)

X

<0.0050 1

mg/L 12V. Dichloro-bromomethane X

<0.0010 1

mg/L 13V. Dichloro-difluoromethane x

<0.0050 1

mg/L e7n-75--)

14V. 1,1-Dichloro-ethane (75-34-3)

X

<0.0010 1

mg/L 15V. 1,2-Dichloro-ethane (107-M-2)

X

<0.0010 1

mg/L 16V. 1,1-Dichloro-ethylene (75-35-4)

X

<0.0010 1

mg/L 17V. 1,2-Dichloro-propane (78-87-5)

X

<0.0010 1

mg/L 18V. 1,3-Dichloro-propylene (542-75-")

X

<0.0010 1

mg/L 19V. Ethylbenzene (100-41-4)

X

<0.0010 1

mg/L 20V. Methyl Bromide (74-83-9)

X

<0.0050 1

mg/L 21V. Methyl Chloride (74-87-3)

X

<0.0025 1

mg/L EPA Form 3510-2C (8-90)

Page V-4 CONTINUE ON PAGE V-5

EPA I.D. NUMBER (coDv from Item I of Form 1)

OUTFAL L NUMBER CONTINUED FROM PAGE V-4

1. POLLUTANT

2. MARK 1X

3. EFFLUENT

4. UNITS, INTAKE (fonthomn I)

AND CAS

a. TEST-b. BE-

c. BE-

a. MAXIMUM DAILY VALUE

b. MAXIMUM 30 DAY VALUE

c. LONG TERM AVRG. VALUE

a. LONG TERM

b. NO. OF NUMBER ING LIEVED UEVED (If available)

(ifavailablI

d. NO. OF

a. CONCEN-

b. MASS AVERAGE VALUE ANAL-(if available)

RE-PRE-AB-(1)

(2) MASS (1)

(2) MASS ANAL-TRATION (1) CONCEN-(2) MASS YSES QUIRED SENT SENT CONCENTRATION CONCENTRATION CONCENTRATION YSES TRATION G.CIMS FRACTION. V LATILE

_OMPO_

NOS Ict

_lnued) 22V. Methylene Chloride (75-09-2)

X

<0.0050 1

mg/L 23V. 1,1,22-Tetra-chkooethane X

<0.0010 1

mg/L 24V a

Ttrachloro-ethylene (127-18-4)

X

<0.0010 1

mg/L 25V. Toluene (108-88-3)

X

<0.0050 1

mg/L 26V. 1.2-Trans-Dichloroethylene X

<0.0010 1

mg/L (156-60-5)1 27V. 1,1,1-Tri-chlaroethane X

<0.0010 1

mg/L

'71-55-81__________________________

28V. 1,1,2-Tn-chloroethane X

<0.0010 1

mg/L (79-00-51 29V. Tnchloro-ethylene (79-01-8)

X

<0.0010 1

mg/L 30V. Trichloro-fluoromethane X

<0.0050 1

mg/L (75-9-4)M 31V. Vinyl Chloride (75-01-4)

X

<0.0010 1

mg/L ON FiRACTrI

-A ID COMPOUNDS" IA. 2-Chloiophenol (95-57-8)

X

<0.040 1

mg/L 2A. 2,4-Dichloro-phenol (120-83-2)

X

<0.040 1

mg/L 3A. 2,4-Dimethyl-phenol (105-67-9)

X

<0.040 1

mg/L 4A. 4,6-Dinitro-O-Cresol (534-52-1)

X

<0.040 1

mg/L 5A. 2.4-Dnitro-phenol (51-28-5)

X

<0.040 1

mg/L 6A. 2-Nitrophenol (88-75-5)

X

<0.040 1

mg/L 7A. 4.Nitrophenol (100-02-7)

X

<0.040 1

mg/L 8A. P-Chloro-M Cresol (59-50-7)

X

<0.040 1

mg/L 9A. Pentachloro-phenol (87-88-5)

X

<0.040 1

mg/L 10A. Phenol (108-95-2)

X

<0.040 1

mg/L 1l A. 2,4,6-Trihloro-phenol (88-06-2)

X

<0.040 1

mg/L FVA FAný Afilfn.2 1Aan Pn V

INTINIIF Q PA 6

.. MARK

_X_

_3.

EFFLUENT

4. UNITS

5. INTAKE (option it)

AND CAB

a. TEST-b. BE-

c. BE-

a. MAXIMUM DAILY VALUE

b. MAXIMUM 30 DAY VALUE

c. LONG TERM AVRG. VALUE

a. LONG TERM

b. NO. OF NUMBER ING LIEVED LIEVED

t.

(favalable)

(if available)

d. NO. OF

a. CONCEN-

b. MASS AVERAGE VALUE ANAL-(if available)

RE-PRE-AB-(1)

(2) MASS (1)

(2) MASS ANAL-TRATION (1) CONCEN-(2) MASS YSES QUIRED SENT jSENT CONCENTRATION CONCENTRATION CONCENTRATION YSES TRATION GCIMS FRACTION -O ASE/NE1TRAL CMPOUNDS 1B. Acenaphthene (83-32-9)

X 1

mg/L 2B. Acenaphtylene (208-96-8) x 1

mg/L

38. Anthracene (120-12-7)

X 1

mg/L 8B. Benzidine (92-87-5)

X 1

mg/L

58. Benzo (a) nthracene X

1 mg/L (56-55-3) 6B. Benzo (a)

Pyrene (50-32-8)

X 1

mg/L 7B. 3.4-Benzo-fuoranthene X

1 mg/L (205-99-21 8B. Benzo (ohi)

Perylene X

1 mg/L (191-24-2) 9B. Benzo (k)

FluAoranthene X

1 mg/L (207-08-9) 10B. Bis (2-Chlor-ethoxy) Methane X

1 mg/L (111-91-1) 11B. Bis (2-Chloro-ethyl) Ether X

1 mg/L (1-44-4) 12B. Bis (2-Chloro-isopropyl) Ether X

1 mg/L (102-60-1) 13B. Bis (2-Ethvl-hexyl) Phthalate X

1 mg/L t4B, 4-Bromo-phenyl Phenyl X

1 mg/L Ether (101-55-3) 15B. Butv) Benzyt Phthalate (85-68-7)

X 1

mg/L 16B. 2-Chloro-naphthalene X

1 mg/L (91I-58-7) 17B. 4hloro-phenyl Phenyl X

1 mg/L r7 3)

18.

hrysene (218-01-9)

X 1

mg/L 19B. Dibenzo (a.h)

Athracene x

1 mg/L I(53-70-3)

.20B. 1,2-Dichloro-benzene (95-50-1)

X

<0.0010 1

mg/L 21B. 1,3-Dichloro-benzene (541-73-1)

X

<0.0010 1

mg/L I 0

EPA ID. NUMBER (coov from Item 1 of Form 1I OUTFAL L NUMBER I

TN2640030035 1

113 CONTINUED FROM PAGE V-6

1. POLLUTANT

2. MARKW

3. EFFLUENT

4.

U

_ITS 5,INTAKE

_o__in_(

AND CAS

a. TEST-BE-c BE-

a. MAXIMUM DAILY VALUE

b. MAXIMUM 30 DAY VALUE

c. LONG TERM AVRG. VALUE

a. LONG TERM

b. NO. OF NUMBER ING ILIEVEDIEVED (ifavailabl)

(if avafiableI

d. NO. OF

a. CONCEN-

b. MASS AVERAGE VALUE ANAL-(if available)

RE-PRE-AB-(1)

(2) MASS (1)

(2) MASS ANAL-TRATION (1) CONCEN-(2) MASS YSES

_QUIRED SENT SENT CONCENTRATION CONCENTRATION CONCENTRATION YSES TRATION SCMR RATN.RLFNUFA MPOIJh DSfcmnflnueld) 22.1,4-D!Cichor-benzene (106-46-7)

X

<0.0010 1

mg/L 23B. 3,3'-Dichloro-benzidine x

1 mg/L Phthalate X

1 mg/L (84M-6-21 25BDmLethyl Phthalate X

1 mg/L (131-11-3111 268. Di-N-Butyl Phthalate x

1 mg/L toluene (121-14-2) x 1

mg/L 288. 2,6-Dinitro-toluene (606-20-2)

X 1

mg/L 29B. Di-N-OctV1 Phthalate X

1 mg/L

[! !7-64-0) hydrazine (as Azo-X 1

mg/L 31 B, Fluoranthene (206-44-0)

X 1

mg/L 32B. Fluorene (86-73-7) x 1

mg/L 338. Hexadkroenzens (118-74-1)

X 1

mg/L 34B. Hexa-chlorobutadiene X

1 mg/L

35. Hexachloro-cydopentadlene X

1 mg/L ethane (67-72-1)

X 1

mg/L 37B. Indeno (f,2,3-cd) Pyrene X

1 mg/L 388. Isophorone (78-59-1)

X 1

mg/L 398. Naphthalene (91-20-3)

X 1

mg/L 40B. Nitrobenzene (98-95-3)

X 1

mg/L 41IB. N-Nitro-xodimethylanins X

1 mg/L Propylamins x

1 mg/L r621.64-7t_______

EPA Form 35iO-2C (8-90)

Page V-7 CONTINUE ON PAGE V-8 EPA Form 3510-2C (8-90)

Page V-i CONTINUE ON PAGE V-8

CONTIN UED FROM PAGE V-7

1. POLLUTANT

2. MARKW '

3. EFFLUENT

4. UNITS 5, INTAKE (onal1 AND CAS

a. TEST-1b. BE-1c. BE-

a. MAXIMUM DAILY VALUE

b. MAXIMUM 30 DAY VALUE

c. LONG TERM AVRG. VALUE

a. LONG TERM

b. NO. OF NUMBER ING LIEVED LIEVED I (if availableI (if availeble)

d. NO. OF

a. CONCEN-

b. MASS AVERAGE VALUE ANAL-(if available)

RE-PRE-AB-(1)

(2) MASS (1)

(2) MASS ANAL-TRATION (1) CONCEN-(2) MASS YSES QUIRED SENT

.SENT CONCENTRATION CONCENTRATION CONCENTRATION YSES TRATION GClIIS FRACTION. B L3*FUNEtHTAI

? MPDU [DS 1nntlnuad...

43B. N-Nttro-sodiphenylamine X

1 mg/L (8630-6) 4B. Phenanthrene (85-01-8) x 1

mg/L 45B. Pyrene (129-00-0)

X 1

mg/L 468. 1,2,4 - Tri-chlorobenzene X

1 mg/L (120-82-1) 1 1

GCIMS FRACTION - PESTICIDES 1IP. Aldrin (309-00-2) x 1

mg/L 2P. a-BHC (319-84-6)

X 1

mg/L 3P. B -BHC (319-85-7)

X 1

mg/L 4P. - BHC (58-89-9)

X 1

mg/L 5P. F-BHC (319-86-8)

X 1

mg/L 6P. Chlordane (57-74-9)

X 1

mg/L 7P. 4,4'-DDT (50-29-3) x 1

mg/L 8P. 4.4-DDE (72-55-9)

X 1

mg/L 9P. 4,4'-DDD (72-54-8)

X 1

mg/L 10P. Dieldrin (60-57-1)

X 1

mg/L 11P. a-Endosulfan (115-29-7) x 1

mg/L 12P. 8-Endosulfan (115-29-7)

X 1

mg/L 13P. Endosuffan Sulfate X

1 mg/L (1031-07-8) 14P. Endrln (72-20-8)

X 1

mg/L 15P. Endrin Aldehyde X

1 mg/L (7421-93-41 16P. Heptachlor (76-44-8)

X 1

mg/L EPA Form 2C-3510 (8-90)

Pgae V-8 CONTINUE ON PAGE V-9

EPA I.D. NUMBER (coov from Item 1 of Form 1.

OUTFAL L NUMBER I

TN2640030035 113 "rMnul..i 1-f

.^IAfr*

U0

1. POLLUTANT R3.

EFFLUENT

4.

U1111 5, INTAKE (to l)

AND CAS

a. TEST-I BE-c, BE-

a. MAXIMUM DAILY VALUE

b. MAXIMUM 30 DAY VALUE

c. LONG TERM AVRG. VALUE

a. LONG TERM

b. NO. OF NUMBER ING

.IEVED LIEVED Lifaailable)

(ifavai/ableI

d. NO. OF AVERAGE VALUE AVERAGE VALUE ANAL-(if available)

RE-IPRE-AB-(1)

(2) MASS (1)

(2) MASS ANAL-

a. CONCEN-

b. MASS (1) CONCEN-(2) MASS YSES QUIRED SENT SENT CONCENTRATION CONCENTRATION CONCENTRATION YSES TRATION TRATION

C/M FRCTIN.

ESTiCI[,ES fcon tnund)

%7. etachlor Epoxide x

mg/L 11024-57-31 18P. PCB-1242 (53469-21-9)

X mg/L 19P. PCB-1254 (11097-69-1)

X 1

mg/L 20P. PCB-1221 (11104-28-2)

X mguL 21P. PCB-1232 (11141-16-5) x mg/L 22P. PCB-1248 (12672-29-6)

X 1

mg/L 23P. PCB-1260 (11096-82-5) x 1

nmg/L 24P. PCB-1016 (12674-11-2) x 1

mg/L 25P. Toxaghene (8001-35-2)

X mg/L NOTES:

(1) Nalual background radialion levels.

Note: Long term average values from October 1, 2004 through September 30, 2005.

EPA Form 3510-2C (8-90)

Page V-9

DEPARTMENT OF ENVIRONMENT AND CONSERVATION NPDES PERMIT APPLICATION ADDRESSES All addresses must be completed even if the same address is used:

NPDES PERMIT NUMBER:

TNO020168 CORPORATE HEADQUARTERS (where permit should be sent):

CONTACT PERSON: Darrin Hutchison, Mgr Chemistry/ Environmental TELEPHONE: (423) 365-8016 Name Title COMPANY NAME:

Tennessee Valley Authority - Watts Bar Nuclear Plant STREET AND/OR P.O. BOX:

P.O. Box 2000 CITY:

Spring City STATE TN ZIP CODE:

37381 PERMIT BILLING ADDRESS (where invoices should be sent):

CONTACT PERSON:

Jerri L. Phillips Environmental Scientist TELEPHONE:

(423) 365-3576 Name Title FACILITY NAME:

Tenn STREET AND/OR P.O. BOX:

CITY:

Sorine City P.se Vale ABtox i 2000r ulerPln P. 0. Box 2000 STATE:

TN ZIP CODE: 37381 FACILITY LOCATION (actual location of permit site):

CONTACT PERSON:

Jerri L. Phillips Environmental Scientist TELEPHONE: (423) 365-3576 Name Title FACILITY NAME:

Tenn STREET AND/OR P.O. BOX:

CITY:

Spring City COUNTY:

Rhea essee Valley Authority - Watts Bar Nuclear Plant HWY 68 Nuclear Plant Road STATE:

TN ZIP CODE:

37381 TELEPHONE: (423) 365-3576 DMR MAILING ADDRESS (where preprinted Discharge Monitoring Reports should be sent):

CONTACT PERSON: Travis Markum, Water Permitting Specialist TELEPHONE: (423) 751-2795 Name Title FACILITY NAME:

Tennessee Valley Authorit STREET AND/OR P.O. BOX:

1101 Market Stree CITY:

Chattanooga CN-1090 S:\\ncdia fiies\\water npdes\\wbn\\WBN permit address form 4-06 Ipj.doc

- Watts Bar Nuclear Plant t, LP 5D STATE:

TN ZIP CODE:

37402 RDAs 2352 AND 2366

TNO020168 WBN PROCESSES 2C Addendum Chemicals Used in Plant Processes Chemical additives are used in plant processes and may be found in trace quantities in the various NPDES discharge points due to blowdown, leakage, and system maintenance activities. The following paragraph describes the most commonly used system additives. The table below summarizes all chemical additives including the water additives that may be found in each ouffall as well.

The water additives are biocides and corrosion treatment chemicals and are discussed in more detail in the Biocide Corrosion Treatment Plan (BCTP) approved in April 2007 by the Division of Water Pollution Control and updated with this submittal.

Hydrazine, ammonia, boric acid, sodium tetraborate, monoethanolamine, sodium molybdate, sodium tolyltriazole, potassium hydroxide, and lithium hydroxide are routinely added to the Primary and Secondary Systems to control pH and corrosion. Up to 300 pounds of modified alpha cellulose could be added to the condenser intake channel to temporarily plug pinhole tube leaks in the condenser. Hydrogen peroxide may be added during refueling for Primary System cleanup to reduce radiation exposure to maintenance personnel.

Similarly, small quantities of ethylene glycol, a heat transfer medium used in building chiller packages, the ice condenser chiller packages, and diesel generators, could end up via leakage in OSNs 101,102, internal monitoring point (IMP) 103, and IMP 107.

March 2009

TNO020168 WBN PROCESSES 2C Addendum

SUMMARY

OF CHEMICALS ADDED BY DISCHARGE DESCHARGE DESCRIPTION CHEMICAL ADDED OSN 101 Diffuser Discharge Ammonium Hydroxide, Ammonium Chloride (Not added now but will add to U-2),

Alpha Cellulose, Asbestos after 5 micron filter, Boric Acid, Sodium Tetraborate, Bromine, Chlorine, Copolymer Dispersant, Ethylene Oxide -

Propylene Oxide copolymer, copolymer, Ethylene Glycol, High Pressure Fire Protection flushes Hydrazine, Laboratory Chemical Wastes, Lithium, Molybdate, Monoethanolamine, Molluscicide, Oil and Grease, Phosphates, Phosphate Cleaning Agents, Paint Compounds, Sodium Bisulfite, Sodium Hypochlorite, Sodium Hydroxide, Surfactant, Tolyltriazole, X-ray Film Processing Rinse Water, Zinc Chloride Orthophosphate, Zinc Sulfate, Phosphino-carboxylic acid copolymer; Diethylenetriaminepenta-methylene phosphonic acid, Sodium salt; Sodium chloride; Ethylenediamine tetracetic acid, Sodium salt; Sodium Hydroxide (also see BCTP).

OSN 102 Yard Holding Pond Alternate discharge path for OSN 101.

Overflow Weir (See OSN 101)

IMP 103 Low Volume Waste Ammonium Hydroxide, Ammonium Chloride, Treatment Pond Boric Acid, Sodium Tetraborate, Bromine, Chlorine Copolymer Dispersant, Ethylene Glycol, Hydrazine, Laboratory Chemical Wastes, Lithium, Molybdate, Monoethanolamine, Molluscicide, Oil and Grease, Phosphates, Phosphate Cleaning Agents, Paint Compounds, Sodium Hydroxide, Surfactant, Tolyltriazole, X-ray Film Processing Rinse Water, Zinc Sulfate, (also see BCTP).

IMP 107 Lined Pond &

Metals - mainly Iron and Copper, Acids Unlined Pond and Caustics, Ammonium Hydroxide, Ammonium Chloride, Asbestos after 5 micron filter, Boric Acid, Sodium Tetraborate, Bromine, Chlorine, Copolymer Dispersant, Hydrazine, Laboratory Chemical Wastes, Lithium, Monoethanolamine, Molybdate, Molluscicide, Oil and Grease, Phosphates, Phosphate Cleaning Agents, Sodium, Sodium Hydroxide, Surfactant, Tolyltriazole, Zinc Sulfate, (also see BCTP)

March 2009

IMP 113 SCCW Diffuser Some contact with chemicals present in OSN 101. Alpha Cellulose, Bromine, Chlorine, copolymer, Molluscicide, Zinc Chloride Orthophosphate March 2009

v t e Letter Sequence Request
TAC:MC4717, (Approved, Closed)
Initiation Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request Acceptance... Supplement, Supplement, Supplement, Supplement, Supplement, Supplement, Supplement, Supplement, Supplement, Supplement Administration Withholding Request Acceptance Questions 3 June 2005 10 February 2006 10 February 2006 25 November 2008 3 December 2008 29 September 2009 23 December 2009 7 January 2010 17 June 2010 28 June 2011 Answers 11 April 2006 11 April 2006 23 February 2009 3 March 2009 19 May 2011 12 May 2011 Results Approval Other: ML052490347, ML052500298, ML052850352, ML061010180, ML062910513, ML062910522, ML063060251, ML073370317, ML073380152, ML090720869, ML101590556, ML11154A093, ML11230B250, ML14283A526, ML15191A183
MONTHYEAR2008-11-25 [Table View]

ML11215A099

Text

Subject:

Dear Mr. Grissette:

Reference:

Reference:

Reference:

Reference:

Dear Dr. Urban:

SUMMARY

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