ML17122A072

Watts Bar, Units 1 and 2 - Annual Non-Radiological Environmenta! Operating Report - 2016

ML17122A072
Person / Time
Site:	Watts Bar
Issue date:	05/02/2017
From:	Simmons P Tennessee Valley Authority
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
Download: ML17122A072 (12)

Text

Tennessee Valley Authority, Post Office Box 2000, Spring City, Tennessee 37381-2000 May 2,201710 cFR 50 4ATTN. Document Control DeskU.S. Nuclear Regulatory Commission Washington, D.C . 20555-0001 Watts Bar Nuclear Plant, Units 1 and2Facility Operating License Nos. NPF-90 and NPF-96NRC Docket Nos. 50-390 and 50-391

Subject:

Watts Bar Nuclear Plant - Annual Non-Radiological Environmenta!

Operating Report -2016ln accordance with Section 5.4.1, "Routine Reports,"

of Appendix B, "Environmental Protection Plant (Non-Radiological),"

to the Watts Bar Nuclear Plant (WBN) Units 1 and 2Operating

Licenses, enclosed is the 2016 Annual Non-Radiological Environmental Operating Report for WBN. This report is required to be submitted to the NuclearRegulatory Commission (NRC) within 90 days following the anniversary of the issuance ofthe WBN Unit 1 operating license (i.e., February 7 , 1996). This report addresses the periodfrom February 7 ,2016 through February 6,2017 .There are no new regulatory commitments in this letter. lf you have any questions concerning this matter, please contact Gordon Arent, WBN Licensing

Director, at(423) 365-2004.

Respectfully, Paul SimmonsSite Vice President Watts Bar Nuclear Plant

Enclosure:

Tennessee Valley Authority Watts Bar Nuclear Plant Annual Non-Radiological Environmental Operating Report February 7,2016 Through February 6,2017 U.S. Nuclear Regulatory Commission Page 2May 2,2017cc (Enclosure):

NRC Regional Administrator

- Region llNRC Project Manager - Watts Bar Nuclear PlantNRC Senior Resident lnspector

- Watts Bar Nuclear PlantU.S. Fish and Wildlife Service TENNESSEE VALLEY AUTHORITY WATTS BAR NUCLEAR PLANTAN N UAL NON.RADIOLOGIGAL ENVI RON MENTAL OPERATING REPORTFEBRUARY 7, 2016 THROUGH FEBRUARY 6,2017E-1 of 10 TABLE OF CONTENTSl. lNTRODUCTlON...............

..... E-3II. REPORTS PREVIOUSLY SUBMITTED AS SPECIFIED IN THE WBN NATIONALPOLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES) PERMIT ... E-3III. SPECIAL BIOLOGICAL MONITORING REPORTS ........,,,,,.,,,..E-4 IV. ENVIRONMENTAL PROTECTION PLAN NONCOMPLIANCES..

.......,......

E.6V. CHANGES MADE TO APPLICABLE STATE AND FEDEMLPERMITS AND CERTlFICATlONS..............

............

E_8VI. CHANGES IN FACILITY DESIGN OR OPERATION...........

...... E-8vil. NoN-ROUTINE REPORTS..........

.........

E_10VIII. CHANGES IN APPROVED ENVIRONMENTAL PROTECTION PLAN SPECIF]CATIONS

..... E.1OE-2 of 10 I. INTRODUCTION The Tennessee Valley Authority (TVA) Watts Bar Nuclear Plant WBN) AnnualNon-Radiological Environmental Operating Report is provided for the period ofFebruary 7,2016 through February 6,2017. This reportwas prepared in accordance with Appendix B to facility operating licenses NPF-90 and NPF-96, "Environmental Protection Plan (EPP),' Section 5.4.1, "Routine Reports."

This report includes asummary of:A. Reports previously submitted as specified in the WBN National Pollutant Discharge Elimination System (NPDES) Permit Number TN0020168.

B. All special reports submitted per EPP Section 4.1, "Environmental Monitoring."

C. All EPP noncompliances and the corrective actions taken to remedy them.D. Changes made to applicable state and federal permits and certifications.

E. Changes in station design or operation that could involve a significant environmental impact or changes to the findings of the Final Environmental Statement (FES).F. Non-routine reports submitted per EPP Section 4.2, "Unusual or lmportant Environmental Events."G. Changes in the approved EPP.II. REPORTS PREVIOUSLY SUBiIIITTED AS SPECIFIED IN THE WBN NATIONALPOLLUTANT DISCHARGE ELttUtNATION SYSTEM (NPDES) pERtUtTThe following reports were submitted as specified in the WBN NPDES Permit NumberTN0020168 and the Tennessee Storm Water Multi-Sector General Permit (TMSP)Numbers TNR051343 and TNR050000:

A. As required by the NPDES permit, Discharge Monitoring Reports (DMRs) werecompleted and submitted monthly to the Tennessee Department of Environment and Conservation (TDEC) no later than 15 days after the completion of thereporting period.B. WBN submitted to the TDEC the "Compliance Survey for Watts Bar NuclearPlant Outfall 113 Passive Mixing Zone" for "Winter 2015". As summarized in thereport, the compliance surveys confirms the adequacy of the passive mixingzone and the adequacy of the thermal model to evaluate the operation of Outfall113.C. The annual Biocide/Corrosion Treatment Report was completed and submitted toTDEC prior to the February 15, 2016 deadline.

D. The annual sampling and analysis required by the 2016 and 2017 TMSP forstorm water was performed and the annual reports were submitted to the TDECwithin 30 days after the sample results were obtained.

E-3 of 10 II.REPORTS PREVIOUSLY SUBMITTED AS SPECIFIED IN THE WBN NATIONALPOLLUTANT DISC HARGE ELIMINATION SYSTEM (NPDES) PERIUIIT (continued)

E. DMR Quality Assurance (QA) Laboratory Performance Evaluation Study 36 wascompleted by and submitted to Environmental Resource Associates, the TDEC,and the Environmental Protection Agency (EPA) prior to the August 26,2016deadline.

The cadmium,

selenium, and total suspended solids value for DMR-QA Study 36 analyses performed and reported by our contract analytical laboratory

- Test America were 'Not Acceptable'.

After a careful investigation, the probable root cause was undetermined.

Corrective action measures toensure the current analysis process produces reliable and repeatable resultswere determined to be unnecessary as no reproducible issue was detected.

SPECIAL BIOLOGICAL IUIONITORING REPORTSA. EPP Section 4.1.1, "Aquatic Monitoring"

1. Routine semi-annual Whole Effluent Toxicity WET), a.k.a. chronicbiotoxicity tests, were conducted on plant effluents and the appropriate reports were submitted as part of the DMR for Outfall Serial Numbers(OSNs) 101 and 113, in May and October 2016 as required by theNPDES permit. All TVA test results were valid for all sampling outfallsand dates and for both lC25 tests (P. promelas and C. dubia).2. A report on the "Biological Monitoring of the Tennessee River near theWatts Bar Nuclear Plant 2012" is not required in accordance with Part lll,Section I of the WBN NPDES Permit, but was a recommendation in the"Watts Bar Nuclear Plant Supplemental Condenser Cooling WaterSystem Fish Monitoring

Program, 2001" report to be consistent with otherrequired annual reporting programs at Tennessee and Alabama nuclearplants. TVA determined in January 2013 that these reports, or anequivalent, would be submitted with the permit renewals versus thehistorical annual basis (last submitted December 29,2015 as acomponent of the NPDES permit renewal application).

3. ln accordance with the provisions of Tennessee Code Annotated Section 69-7-301 et seq., the Water Resources lnformation Act, WBNsubmitted the Water Withdrawal Registration Form for Calendar Year(CY) 2016 to the TDEC prior to the February 15, 2017 deadline.

Althoughfederal agencies are not subject to laws and regulations promulgated bystate governments unless Congress has clearly waived the federalgovernment's sovereign

immunity, in 2003 TVA voluntarily agreed as amatter of policy to provide the registration information in order to assistboth TVA and TDEC in carrying out their water management responsibilities.

III.E-4 of 10 l!!. SPECIAL BIOLOGICAL IUONITORING REPORTS (continued)

B. EPP Section 4.1.2, "Maintenance of Transmission Line Corridors' Listed below are the 500 kV transmission lines associated with WBN andinformation regarding the maintenance that was performed on each line:500 kV Line ldentifier Maintenance Performed Bull Run - Watts Bar (Note Below)There was not any Chemical or Herbicide utilized on these lines within the period.Watts Bar - RoaneThe following methods were used to treat the4.9 acres June 16, and 18, 2016.A. Backpack Sprayer:o Arsenal (EPA 241-346)40.81 oz.. Escort XP (EPA 432-1 549)1.24 oz.o Milestone VM (EPA 62719-537) 32.31 oz.o Rodeo (EPA 62719)27 1 .94 oz.Watts Bar - Volunteer No chemical or herbicide was utilized on theselines within the period.Watts Bar - Sequoyah 1 (Note Below)No chemica!

or herbicide utilized on theseIines within the period.Watts Bar - Sequoyah 2 (Note Below)No chemical or herbicide utilized on theselines within the period.Note:The transmission line designated as Bull Run - Sequoyah in previous versions of this report hasbeen split into the following transmission lines: 1) Watts Bar - Sequoyah 1, and 2) Bull Run -Watts Bar.E-5 of 10 IV. ENVIRONMENTALPROTECTIONPLANNONCOiiPLIANCES WBN received two Notice of Violations (NOVs) from February 2016 to February 2017.A. On November 8, 2016, the TDEC issued the WBN Compliance Evaluation lnspection (CEl) report and issued two NOVs:i. According to comments made by TVA personnel and the calibration report, Wafts Bar Nuclear Plant Dye Test Calibration for 0-FlT-27-98, January 26,2016, the flowmeter 0-FlT-27-98 may not maintain calibration between scheduled calibrations and should be calibrated on a morefrequent basis. By failing to ensure that the flowmeter at OSN 101maintains a tolerance of +1go1o, TVA WBN is not in compliance with PartllA.4 of its permit.ii. By failing to repair the permanent temperature sensing system at OSN101 in a timely manner, TVA WBN is not in compliance with Part A.4 of itspermit and Note 4 in Part 1.ln accordance with the NPDES permit, the following noncompliances were reported tothe TDEC.ln accordance with Part 1 of the NPDES permit, daily temperature monitoring at OSN101 was conducted on January 01-22, February 12, May 13 through 31 , June 1 , 2,26 through 30, July 3, 6, 9, 12,16,20,23,29, and 31, September 1 through 12 andthe 29th, 2016 due to temperature monitoring equipment failure.

WBN notified theTDEC on the applicable DMR cover letters.On February 18, 2016 WBN reported to TDEC that WBN exceeded the benchmark monitoring requirement for iron at storm water monitoring outfall SW-g on January15,2016.Due to constraints on the OSN 101 flow meter, flows in excess of 80,000 gallons perminute (gpm) were calculated for the months of February 2016 through September 2016.Due to meter fouling, flows were calculated at IMP 103 April 5 through 7 , 11, 15, 20,22 through 26, 28, 2016 and May 1 , 3 through 16, 1 8, 22, 24 through 26, and 29through 31,2016.On June 18,2016, TVA notified the National Response CenterthatWBN had an oilsheen on the Cooling Tower Basin. Estimate of oil released into the cooling towerbasin is less than one quart. Notifications were also made to Tennessee Emergency Management Agency (TEMA), the CDO, ODS, the National Response Center, theNRC (NRC event#520211, and the TDEC.On July 11,2016 WBN reported to the TDEC in the June DMR cover letter that dueto Turbine Building Station Sump (TBSS) pump failure on June 24,2016, the TBSSeffluent was discharged on June 25 and 26, 2016 to the Yard Holding Pond via astorm water drain. This effluent was analyzed daily for OSN 101 parameters at theNPDES monitoring point and IMP 103 parameters at the discharge point. Theresults were included in the June DMR.c.D.A.B.E.F.E-6 of 10 IV,Atr.ENvIRoNiIENTAL PRorEcrloN PLAN NoNcoilPLlANcEs (continued)

On July 26,2016 at 1536 EDT, TVA notified the National Response Center thatWatts Bar Nuclear Plant had noted an oilsheen on the Cooling Tower Basin. An oilsheen was observed within the U1 Cooling Tower basin at WBN. The sheen did notcover the entire Cooling Tower basin. The sheen covered approximately two squarefeet. Estimate of oil released into the Cooling Tower basin is less than four ounces.No oil sheen was visible in the Tennessee River from the bank above the diffuserpipes. Notifications were also made to TEMA the NRC (NRC event#52126),

and theTDEC.On August 09, 2016, TVA notified the National Response Center that Watts BarNuclear Plant had noted an oil sheen on the Cooling Tower Basin. No oil sheen wasvisible in the Tennessee River from the bank above the diffuser pipes. Notifications were also made to TEMA the NRC (NRC event#52163),

and the TDEC.On August 30, 2016, TVA reported a Notice of Unusual Event - Fire in a Main BankTransformer (NRC event#52210).

A fault occurred on the unit 2 "B" main banktransformer resulting in an oil fire and the loss of approximately 15,000 gallons of oilto the site drainage system and ponds. The main turbine tripped resulting in a reactortrip. The fire began at2110 EDT and was reported out at2228. Unit 1 continued operation.

Notifications were also made to the DHS SWo, FEMA ops Center, DHSNICC, FEMA NationalWatch Center (E-mail) and Nuclear SSA, the NRC, and theTDEC.WBN notified the TDEC on the September 2016 DMR cover letter of the MusselRelocation Zone (MRZ) average calculation for September 1 through 18 and27through 30, 2016 due to a failure in the temperature monitoring equipment failure.The NRC event#52400 involved the release of a GE BETZ Chemical Flogard*MS6237 (ratio of materials 2O-4Oo/o for both Zinc Chloride and Phosphoric Acid) onNovember 29,2016.

The release of approximately 525 gallons was reported in theNational Response Center report 1 165106 (total volume of the container was 2,500gallons).

From the total spilled and the percentage estimations from GE BETZ, thematerial exceeded the Zinc chloride Reportable Quantity (Ra) of 1,000 pounds.TVA demonstrated that Phosphoric Acid did not exceed its RQ of 5,000 pounds. Anotification was given to the National Response Center, Rhea County LEPC,Tennessee Emergency Management Agency, and the TDEC.H.t.J.K.E-7 of 10 V. CHANGES MADE TO APPLICABLE STATE AND FEDERAL PERTUIITS ANDCERTIFICATIONS A. NPDES Permit Number TN 00201681. The Environmental Protection Agency (EPA) issued the final rule requiring allNPDES Permitees to utilize electronic reporting instead of the former paper-based reporting.

This rule became effective on December 21,2015.

TheTDEC instituted the NetDMR for submitting the monthly DMRs. This ruledoes not change the information required to be reported nor does it changeNPDES requirements.

lnformation regarding the rule can be obtained underDocket lD No. EPA-HQ-OECA-2009-0274 at the www.reoulations.oov website.2. On December 6, 2016, TVA submifted comments to the draft NPDESpermit dated November 17,2016.3. TVA requested an update to the Tennessee Storm Water Multi-Sector General Permit (TMSP) TNR051343 to add coverage under Sector AF onDecember 16, 2016. TVA recently completed construction projects underTNR190741 and elected to maintain the spoils area underthe TMSP as aborrow area. The runoff from the borrow area drains to an existing stormwater outfall, SW-13.B. Air Permits Number 4638221. On March 31, 2016 TVA applied for a source No. 72-0029, DG-gConstruction Permit for a TSOB Building Replacement Emergency Generator Diesel Engine.VI. CHANGES IN FACILITY DESIGN OR OPERATION ln accordance with EPP Section 3.1, "Plant Design and Operation,"

facility design andoperational changes were reviewed for potential effect on the environment as described below. A review of facility design and operational changes proposed from February 7,2015, through February 6, 2016, was performed.

Projects considered as havingpotential impact on the environment included those that:. Could have caused waste stream generation/alteration.

. Required the acquisition/modification of permits.o lnvolved the use of hazardous material.

. Required physical construction.

E-8 of 10 A. CHANGES lN FACILITY DESIGN OR OPERATTON (continued)

The review, performed in accordance with the guidelines of TVA's NationalEnvironmental Policy Act (NEPA) Program, documented that design and operational changes did not involve an unreviewed environmental question.

The following criteriawere used to identify those projects with a potential for environmental effects:A. Waste stream generation/alteration:

Air, Hazardous Waste, Solid Waste, Polychlorinated Biphenyls,

Asbestos, orWastewater B. Permit Acquisition/Modification:

NPDES, Air, lnert Landfill, or OtherC. Hazardous Materials:

Hazardous Materials that are environmentally unfriendly and are likely togenerate a Resource Conservation and Recovery Act (RCRA) hazardous orToxic Substances ControlAct (TSCA) waste.D. Physical Construction lnvolved:

E rosion/Sedi mentation

Effects, Tra nsportation

Effects, N oise Effects,Groundwater

Effects, Surface Water Effects, Floodplain

Effects, Wetland Effects,Prime Farmland

Effects, Unique Natural Features

Effects, Aquatic EcologyEffects, Terrestrial Ecology Effects, Protected Species Effects, Sensitive HabitatEffects, Visual Effects, Historical, Cultural and Archeological

Effects, Changes inSite Land Use, or Controversy.

1. TemporaryAlterations:

There were no temporary alterations conducted during this period that met theenvironmental impact criteria.

Desion and Operational ChanoesMost of the design and operational changes conducted during this period did not meetthe environmental impact criteria.

There were 15 facility design and operational changesmade during this reporting period with a potential impact on the environment.

Theappropriate environmental reviews were completed and all changes were found to bewithin the scope of existing environmental permits and in compliance with NEPAregulations.

E-9 of 10 VII.CHANGES lN FACILITY DESIGN OR OPERATTON (continued)

Those Categorical Exclusion Checklists (CECs) written to document the review of sitechanges are as follows:(1) 34413 Provide supplemental condenser cooling water from Unit 2Supply Weirto Unit 1 Cooling Tower BasinWBN Pond lmprovement PlanWBN Tritium Monitoring WellsWBNP System 027 Diffuser Pipe Repair-Near Vatve WBN-0-FCV-O27-0101 and WBN-0-FCV-027-0100, Work Order # 112809151 (5) 34989 Repair of diffusers at Watts Bar Nuclear via epoxy(6) 35163 Agrekko Chillers 2016(7) 35192 Watts Bar Transmission Service Center Truck Canopy(8) 35244 wBN MET Tower grounding upgrade (Fp610266 two 429124)(9) 35252 WBN U2 Steam Generator Replacement Core Borings(10) 35313 Replacement of existing Molar Ratio Skid with a Polyacrylic Acid(PAA)skid(1 1) 35370 lnstallation of 2500 gallon Flogard(Corrosion I nhibitor) double-walled tank(12) 35472 U2 Switchyard Clean-Up Foilowing U2 MBT Fire(13) 35931 Construct BoricAcid Mixing Station inside BoricAcid Mixing Building(14) 36259 Replace Cooling Tower Blowdown Flow Sensor O-FE-027-0098 andTransmitter (15) 36292 Replacement of Main Bank Transformers 2A,28,2C and Spare at WBNAll other facility design and operational changes made during this reporting period witha potential impact on the environment were found to be within the scope of existingenvironmental permits and in compliance with regulations.

ln summary, there were no facility designs or operational changes fromFebruary 7,2016 to February 6,2017, which resulted in an unreviewed environmental question.

VII. NON.ROUTINE REPORTSNo non-routine reports for EPP Section 4.2were issued during this reporting period.VIII. CHANGES IN APPROVED ENVIRONMENTAL PROTECTION PLANSPECIFICATIONS No changes were made to the wBN operating

license, Appendix B, Epp during thereporting period.(2) 34437(3) 34767(4) 34812E-10 of 10