ML13346A427

Sequoyah Nuclear Plant, Unit 1, Cycle 20 Core Operating Limits Report

ML13346A427
Person / Time
Site:	Sequoyah
Issue date:	12/04/2013
From:	Carlin J T Tennessee Valley Authority
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
Download: ML13346A427 (26)

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Tennessee Valley Authority, Post Office Box 2000, Soddy Daisy, Tennessee 37384-2000 December 4, 201310 CFR 50.4ATTN: Document Control DeskU.S. Nuclear Regulatory Commission Washington, D.C. 20555-0001 Sequoyah Nuclear Plant, Unit 1Facility Operating License No. DPR-77NRC Docket No. 50-327

Subject:

Sequoyah Unit I Cycle 20 Core Operating Limits ReportIn accordance with Sequoyah Nuclear Plant (SQN) Unit 1 Technical Specification (TS)6.9.1.14.c, enclosed is the Unit 1 Cycle 20 Core Operating Limits Report (COLR),Revision

0. In accordance with TS 6.9.1.14.c, the COLR is required to be provided tothe Nuclear Regulatory Commission within 30 days after the cycle start-up (Mode 2)for each reload cycle. Sequoyah Unit 1 entered Mode 2 on November 20, 2013, forthe current reload cycle.There are no new regulatory commitments in this letter. If you have any questions, please contact Michael McBrearty, SQN Site Licensing Manager at (423) 843-7170.

Respectfully, Vi President Sequoyah Nuclear PlantEnclosure Sequoyah Unit 1 Cycle 20 Core Operating Limits Reportcc (Enclosure):

NRC Regional Administrator-Region IINRC Senior Resident Inspector

-SQN ENCLOSURE SEQUOYAH UNIT I CYCLE 20CORE OPERATING LIMITS REPORT QA RecordL36 131101 802SEQUOYAH UNIT I CYCLE 20CORE OPERATING LIMITS REPORTREVISION 0November 2013Prepared by: ý //J. E.Wtrange, PW Fulgineering DateVerified by:t /kua Date%.C..,A. Setter, PWVR Fuel Eng-ine-e-ng DateR *ewedty /.D. M. Brown, PWR Fuel Engineering Manager DateL/ rCu'd tB. S. Catalanotto, ReactorEngineering Manager DateApproved byz PRDatePlant Mana"er DateRevision 0Pages affected AllReason for Revision:

Initial IssueSEQUOYAH-UNIT 1Page I of 15Revision 0

COLR FOR SEQUOYAH UNIT I CYCLE 201.0 CORE OPERATING LIMITS REPORTThis Core Operating Limits Report (COLR) for Sequoyah Unit 1 Cycle 20 has been prepared inaccordance with the requirements of Technical Specification (TS) 6.9.1.14.

The TSs affected by this Report are listed below:TABLE 2.2-1 fi(AI) trip reset function for OTAT Trip (QTNL, QTPL) and rates of trip setpointdecrease per percent Al (QTNS, QTPS)TABLE 2.2-1 f2(AI) trip reset function for OPAT Trip (QPNL, QPPL) and rates of trip setpointdecrease per percent Al (QPNS, QPPS)3/4.1.1.3 Moderator Temperature Coefficient (MTC)3/4.1.3.5 Shutdown Rod Insertion Limit3/4.1.3.6 Control Rod Insertion Limits3/4.2.1 Axial Flux Difference (AFD)3/4.2.2 Heat Flux Hot Channel Factor (Fo(X,Y,Z))

3/4.2.3 Nuclear Enthalpy Rise Hot Channel Factor (FAH(X,Y))

2.0 OPERATING LIMITSThe cycle-specific parameter limits for the specifications listed in section 1.0 are presented in thefollowing subsections.

These limits have been developed using the NRC approvedmethodologies specified in TS 6.9.1.14.

The versions of the topical reports which describe themethodologies used for this cycle are listed in Table 1.The following abbreviations are used in this section:BOL stands for Beginning of Cycle LifeARO stands for All Rods OutHZP stands for Hot Zero THERMAL POWEREOL stands for End of Cycle LifeRTP stands for RATED THERMAL POWER2.1 Moderator Temperature Coefficient

-MTC (Specification 3/4.1.1.3) 2.1.1 The MTC limits are:The BOL/ARO/HZP MTC shall be less positive than 0 Ak/k/0F (BOL limit). With themeasured value more positive than -0.03 x105 Ak/k/"F (as-measured MTC limit),establish control rod withdrawal limits to ensure the MTC remains less positive than 0Ak/k/°F for all times in core life.The EOL/ARO/RTP MTC shall be less negative than or equal to -4.5 X 104 Ak/k/0F.SEQUOYAH-UNIT 1Page 2 of 15Revision 0

COLR FOR SEQUOYAH UNIT I CYCLE 202.1.2 The 300 ppm surveillance limit is:The measured 300 ppm/ARO/RTP MTC should be less negative than or equal to-3.75 x 104 Ak/k/°F.2.2 Shutdown Rod Insertion Limit (Specification 3/4.1.3.5) 2.2.1 The shutdown rods shall be withdrawn to a position as defined below:Cycle Burnup Steps Withdrawn (MWd/mtU)

> 0 > 225 to < 2312.3 Control Rod Insertion Limits (Specification 314.1.3.6) 2.3.1 The control rod banks shall be limited in physical insertion as shown in Figure 1.2.4 Axial Flux Difference

-AFD (Specification 3/4.2.1)2.4.1 The axial flux difference (AFD) limits (AFDur"mt) are provided in Figure 2.2.5 Heat Flux Hot Channel Factor -Fg(X,Y,Z)

(Specification 3/4.2.2)Fa (X,Y,Z) shall be limited by the following relationships:

FQRTPFQ(X,Y,Z)<

• K(Z) for P> 0.5PFaRTPFa (X,Y,Z)

-* K(Z) for P< 0.50.5THERMAL POWERwhere P =RATED THERMAL POWERRTP2.5.1 F0 = 2.622.5.2 K(Z) is provided in Figure 3SEQUOYAH-UNIT 1Page 3 of 15Revision 0

COLR FOR SEQUOYAH UNIT I CYCLE 20The following parameters are required for core monitoring per the Surveillance Requirements of Specification 3/4.2.2:2.5.3 NSLOPEAFD

= 1.23where NSLOPEAFD

=Negative AFD limit adjustment required to compensate for each1% that F0(X,Y,Z) exceeds BQDES.2.5.4 PSLOPEAFD

= 1.47where PSLOPEAFD

=Positive AFD limit adjustment required to compensate for each1% that FQ(X,Y,Z) exceeds BQDES.2.5.5 NSLOPEt2(AI) = 1.55where NSLOPE'2(A) =Adjustment to negative OPAT f2(Al) limit required to compensate for each 1% that FQ(X,Y,Z) exceeds BCDES.2.5.6 PSLOPE12(.6) = 1.89where 2.5.7 BQNOM(X,Y,Z)

=2.5.8 BQDES(X,Y,Z)

=2.5.9 BCDES(X,Y,Z)

=Adjustment to positive OPAT f2(AI) limit required to compensate for each 1% that FQ(X,Y,Z) exceeds BCDES.Nominal design peaking factor, increased by an allowance for theexpected deviation between the nominal design power distribution and the measurement.

Maximum allowable design peaking factor which ensures that theF0 (X,Y,Z) limit will be preserved for operation within the LCOlimits, including allowances for calculational and measurement uncertainties.

Maximum allowable design peaking factor which ensures that thecenterline fuel melt limit will be preserved for operation within theLCO limits, including allowances for calculational andmeasurement uncertainties.

BQNOM(X,Y,Z),

BQDES(X,Y,Z),

and BCDES(X,Y,Z) databases are provided for input tothe plant power distribution analysis codes on a cycle specific basis and are determined using the methodology for core limit generation described in the references inSpecification 6.9.1.14.

SEQUOYAH-UNIT IPage 4 of 15Revision 0

COLR FOR SEQUOYAH UNIT I CYCLE 202.5.10 The increase in FQM(X,Y,Z) for compliance with the 4.2.2.2.e Surveillance Requirements is defined as follows:For cycle burnups:

0 to 3118 MWd/mtU, use 2.0 %For cycle burnups:

> 3118 to 4145 MWd/mtU, use 2.29 %For cycle burnups:

> 4145 MWd/mtU, use 2.0 %2.6 Nuclear Enthalpy Rise Hot Channel Factor -F^H(X.Y)

(Specification 3/4.2.3)F6H(X,Y) shall be limited by the following relationship:

FAH(X,Y)

< MAP(X,Y,Z)

/ AXIAL(X,Y) 2.6.1 MAP(X,Y,Z) is provided in Tables 2a and 2b.AXIAL(X,Y) is the axial peak from the normalized axial power shape.The following parameters are required for core monitoring per the Surveillance Requirements of Specification 3/4.2.3:FAHRM(X,Y)

_ BHNOM(X,Y) where FAHRM(X,Y) = FAHM(X,Y)

/ [MAPm / AXIAL(X,Y)]

FAHM(X,Y) is the measured radial peak at location X,Y.MAPi is the value of MAP(X,Y,Z) obtained from Tables 2a and 2b for the measuredpeak.2.6.2 BHNOM(X,Y)

=2.6.3 BHDES(X,Y)

=2.6.4 BRDES(X,Y)

=Nominal design radial peaking factor, increased by an allowance for theexpected deviation between the nominal design power distribution andthe measurement.

Maximum allowable design radial peaking factor which ensures that theFAH (X,Y) limit will be preserved for operation within the LCO limits,including allowances for calculational and measurement uncertainties.

Maximum allowable design radial peaking factor which ensures that thesteady state DNBR limit will be preserved for operation within the LCOlimits, including allowances for calculational and measurement uncertainties.

BHNOM(X,Y),

BHDES(X,Y) and BRDES(X,Y) databases are provided for input to theplant power distribution analysis computer codes on a cycle specific basis and aredetermined using the methodology for core limit generation described in the references inSpecification 6.9.1.14.

SEQUOYAH-UNIT IPage 5 of 15Revision 0

COLR FOR SEQUOYAH UNIT I CYCLE 202.6.5 RRH = 3.34 when 0.8 < P < 1.0RRH = 1.67 when P < 0.8where RRH = Thermal power reduction required to compensate for each 1% thatFAH(X,Y) exceeds its limit.P = Thermal Power / Rated Thermal Power2.6.6 TRH = 0.0334 when 0.8 < P < 1.0TRH = 0.0167 when P < 0.8where TRH = Reduction in OTAT K1 setpoint required to compensate for each 1%FAH(X,Y) exceeds its limit.P = Thermal Power / Rated Thermal Power2.6.7 All cycle burnups shall use a 2% increase in FAHM(X,Y) for compliance with the 4.2.3.2.d.1 Surveillance Requirement.

3.0 REACTOR CORE PROTECTIVE LIMITS3.1 Trip Reset Term [ff(AI)M for Overtemperature Delta-T Trip (Specification 2.2.1)The following parameters are required to specify the power level-dependent f1(AI) trip reset termlimits for the Overtemperature Delta-T trip function:

3.1.1 QTNL=-20%

where QTNL =the maximum negative Al setpoint at rated thermal power at which thetrip setpoint is not reduced by the axial power distribution.

3.1.2 QTPL = +5%where QTPL =the maximum positive Al setpoint at rated thermal power at which thetrip setpoint is not reduced by the axial power distribution.

3.1.3 QTNS = 2.50%where QTNS =the percent reduction in Overtemperature Delta-T trip setpoint for eachpercent that the magnitude of Al exceeds its negative limit at ratedthermal power (QTNL).SEQUOYAH-UNIT IPage 6 of 15Revision 0

COLR FOR SEQUOYAH UNIT I CYCLE 203.1.4 QTPS = 1.40%where QTPS =the percent reduction in Overtemperature Delta-T trip setpoint for eachpercent that the magnitude of Al exceeds its positive limit at ratedthermal power (QTPL).3.2 Trip Reset Term rff(AI)]

for Overpower Delta-T Trip (Specification 2.2.1)The following parameters are required to specify the power level-dependent f2(AI) trip reset termlimits for the Overpower Delta-T trip function:

3.2.1 QPNL = -25%where QPNL =3.2.2 QPPL = +25%the maximum negative Al setpoint at rated thermal power at which thetrip setpoint is not reduced by the axial power distribution.

the maximum positive Al setpoint at rated thermal power at which thetrip setpoint is not reduced by the axial power distribution.

where QPPL =3.2.3 QPNS = 1.70%where QPNS =the percent reduction in Overpower Delta-T trip setpoint for eachpercent that the magnitude of Al exceeds its negative limit at ratedthermal power (QPNL).3.2.4 QPPS = 1.70%where QPPS =the percent reduction in Overpower Delta-T trip setpoint for eachpercent that the magnitude of Al exceeds its positive limit at ratedthermal power (QPPL).SEQUOYAH-UNIT IPage 7 of 15Revision 0

COLR FOR SEQUOYAH UNIT I CYCLE 20Table 1COLR Methodology Topical Reports1. BAW-10180-A, Revision 1, "NEMO-Nodal Expansion Method Optimized,"

March 1993.(Methodology for Specification 3/4.1.1.3-Moderator Temperature Coefficient)

2. BAW-10169P-A, Revision 0, "RSG Plant Safety Analysis-B&W Safety Analysis Methodology forRecirculating Steam Generator Plants,"

October 1989.(Methodology for Specification 3/4.1.1.3-Moderator Temperature Coefficient)

3. BAW-10163P-A, Revision 0, "Core Operating Limit Methodology for Westinghouse-Designed PWRs," June 1989.(Methodology for Specifications 2.2.1-Reactor Trip Instrumentation Setpoints

[fl(Al),

f2(AI) limits],3/4.1.3.5-Shutdown Rod Insertion Limit, 3/4.1.3.6-Control Rod Insertion Limits, 3/4.2.1-Axial FluxDifference, 3/4.2.2-Heat Flux Hot Channel Factor, 3/4.2.3-Nuclear Enthalpy Rise Hot ChannelFactor)4. EMF-2328(P)(A),

"PWR Small Break LOCA Evaluation Model," March 2001.(Methodology for Specification 3/4.2.2-Heat Flux Hot Channel Factor)5. BAW-10227P-A, Revision 1, "Evaluation of Advanced Cladding and Structural Material (M5) in PWRReactor Fuel," June 2003.(Methodology for Specification 3/4.2.2-Heat Flux Hot Channel Factor)6. BAW-10186P-A, Revision 2, "Extended Burnup Evaluation,"

June 2003.(Methodology for Specification 3/4.2.2-Heat Flux Hot Channel Factor)7. EMF-2103P-A, Revision 0, "Realistic Large Break LOCA Methodology for Pressurized WaterReactors,"

April 2003.(Methodology for Specification 3/4.2.2-Heat Flux Hot Channel Factor)8. BAW-10241P-A, Revision 1, "BHTP DNB Correlation Applied with LYNXT," July 2005.(Methodology for Specification 3/4.2.3-Enthalpy Rise Hot Channel Factor)9. BAW-10199P-A, Revision 0, "The BWU Critical Heat Flux Correlations,"

August 1996.(Methodology for Specification 3/4.2.3-Enthalpy Rise Hot Channel Factor)10. BAW-10189P-A, "CHF Testing and Analysis of the Mark-BW Fuel Assembly Design,"

January 1996.(Methodology for Specification 3/4.2.3-Enthalpy Rise Hot Channel Factor)11. BAW-10159P-A, "BWCMV Correlation of Critical Heat Flux in Mixing Vane Grid Fuel Assemblies,"

August 1990.(Methodology for Specification 3/4-2.3-Enthalpy Rise Hot Channel Factor)12. BAW-1 0231 P-A, Revision 1, "COPERNIC Fuel Rod Design Computer Code," January 2004.(Methodology for Specification 2.2.1-Reactor Trip Instrumentation Setpoints)

SEQUOYAH-UNIT IPage 8 of 15Revision 0

COLR FOR SEQUOYAH UNIT I CYCLE 20Table 2aMaximum Allowable Peaking Limits MAP(X,Y,Z) for Operation Advanced W17 HTPTMFuelAXIAL(X,Y)

ELEVATION (ft) MAP(X,Y,Z) 1 1.81282 1.81253 1.81224 1.81195 1.81151.1 6 1.81097 1.81068 1.81049 1.809810 1.809211 1.75991 2.06712 2.06643 2.06564 2.06495 2.06421.2 6 2.06367 2.06248 2.06159 2.045710 1.949211 1.85891 2.34332 2.34193 2.34124 2.33975 2.33891.3 6 2.33817 2.33578 2.31309 2.188610 2.064311 1.9439AXIAL(X,Y)

ELEVATION (ft) MAP(X,Y,Z) 1 2.59692 2.53803 2.48274 2.44115 2.43151.4 6 2.48007 2.53568 2.44479 2.355510 2.173811 2.02381 2.67232 2.60613 2.54174 2.49135 2.48011.5 6 2.53807 2.62738 2.53119 2.444710 2.277211 2.09751 2.73082 2.66053 2.59474 2.53715 2.52341.6 6 2.59067 2.70778 2.61179 2.524010 2.3758S 11 2.1662SEQUOYAH-UNIT IPage 9 of 15Revision 0

COLR FOR SEQUOYAH UNIT 1 CYCLE 20Table 2a (continued)

AXIAL(X,Y)

ELEVATION (ft) MAP(X,Y,Z) 1 2.76642 2.70833 2.63804 2.57915 2.56391.7 6 2.63597 2.77958 2.68709 2.579810 2.472611 2.23041 2.79632 2.74663 2.67754 2.61725 2.60101.8 6 2.68027 2.84568 2.75529 2.664810 2.565511 2.29311 2.82352 2.77393 2.71254 2.65235 2.63281.9 6 2.72007 2.90658 2.81939 2.728810 2.638411 2.3482AXIAL(X,Y)

ELEVATION (ft) MAP(X,Y,Z) 1 2.43392 2.40603 2.38564 2.34235 2.3114>1.9 6 2.60067 2.50038 2.40049 2.298910 2.148311 1.96301 2.50572 2.47543 2.44494 2.35915 2.42052.1 6 2.76437 2.64748 2.53609 2.440010 2.327711 2.05491 2.53802 2.52163 2.46194 2.42945 2.42902.3 6 2.82227 2.73348 2.62349 2.518610 2.4215S 11 2.1250SEQUOYAH-UNIT IPage 10 of 15Revision 0

COLR FOR SEQUOYAH UNIT 1 CYCLE 20Table 2a (continued)

AXIAL(X,Y)

ELEVATION (ift) MAP(X,Y,Z) 1 2.64402 2.51603 2.50454 2.44885 2.58032.5 6 2.94817 2.85448 2.72869 2.645010 2.552711 2.17311 2.55542 2.55293 2.51974 2.43755 2.56432.7 6 2.98397 2.88378 2.79399 2.704010 2.599711 2.19951 2.42232 2.56533 2.50754 2.39555 2.72952.9 6 3.09217 3.00708 2.88969 2.805810 2.697411 2.2039AXIAL(X,Y)

ELEVATION (ft) MAP(X,Y,Z) 1 2.24482 2.55353 2.46784 2.32295 2.89133.1 6 3.15157 3.01818 2.96999 2.894110 2.781911 2.18661 2.02282 2.51723 2.40074 2.21955 3.04963.3 6 3.22267 3.14468 3.03509 2.968810 2.853311 2.14731 1.75632 2.45663 2.30624 2.08545 3.20453.5 6 3.29297 3.26278 3.08469 3.029910 2.9117S 11 2.0862SEQUOYAH-UNIT 1Page 11 of 15Revision 0

COLR FOR SEQUOYAH UNIT I CYCLE 20Table 2bMaximum Allowable Peaking Limits MAP(X,Y,Z) for Operation Mark-BW FuelAXIAL(X,Y)

ELEVATION (ft) MAP(X,Y,Z) 2 1.93434 1.93001.1 6 1.92348 1.911510 1.88942 2.16634 2.15581.2 6 2.14108 2.115310 2.05822 2.40234 2.38251.3 6 2.35998 2.310010 2.17602 2.64534 2.61361.4 6 2.56108 2.419910 2.27872 2.71894 2.81811.5 6 2.67358 2.528010 2.37492 2.77204 2.92191.7 6 2.86418 2.706410 2.5539AXIAL(X,Y)

ELEVATION (ft) MAP(XY,Z) 2 2.81434 2.98561.9 6 3.00738 2.850910 2.70482 2.44054 2.4405>1.9 6 2.73768 2.590610 2.34562 2.58814 2.58812.2 6 2.98998 2.780010 2.53672 2.61114 2.61112.6 6 3.29478 3.205510 2.80492 2.91424 2.91423.0 6 4.02168 3.652710 3.17112 2.96184 2.96183.5 6 4.23518 3.745210 3.3214SEQUOYAH-UNIT IPage 12 of 15Revision 0

COLR FOR SEQUOYAH UNIT 1 CYCLE 20231220200180160(Fully Withdrawn Region)*Z (.575 f 25)(1.0,182)

BAN C1400IL 120-Q.u)10080060I -//(0,110)CBAN40200(.09,000.20.40.60.8I(Fully Inserted)

Fraction of Rated Thermal PowerFigure 1Rod Bank Insertion Limits Versus Thermal Power, Four Loop Operation Fully withdrawn region shall be the condition where shutdown and control banks areat a position within the interval of ':225 and 5231steps withdrawn, inclusive.

Fully withdrawn shall be the position as defined below,Cycle Burnup (MWd/mtu)

Steps Withdrawn

> 0 >225to< 231This figure is valid for operation at a rated thermal power of 3455 MWth when the LEFM is in operation.

If the LEFM becomes inoperable, then prior to the next NIS calibration, the maximum allowable powerlevel must be reduced by 1.3% in power, and the rod insertion limit lines must be increased by 3 stepswithdrawn until the LEFM is returned to operation.

SEQUOYAH-UNIT 1Page 13 of 15Revision 0

COLR FOR SEQUOYAH UNIT I CYCLE 20120 1110 _ -1(4-0-1 010 0 -"a 1 3 1 (7 ,-0 -0)- r --UcUce at ble U_ cc Ptabble9 p e r a t i n --- -O p "a t io n80 4180 Opperatin 605-l- _ _ 0)_81 O L0 4 0360 -220--50 30 10 0 10 20 30 40 50Flux Difference (AI) %FIGURE 2Axial Flux Difference LimitsAs A Function of Thermal PowerFor Burnup Range of 0 EFPD to EOLThis figure is valid for operation at a rated thermal power of 3455 MWth when the LEFM is in operation.

If the LEFM becomes inoperable, then prior to the next NIS calibration, the maximum allowable power levelmust be reduced by 1.3% in power, and the AFD limit lines must be made more restrictive by 1 % in AFD until theLEFM is returned to operation.

SEQUOYAH-UNIT IPage 14 of 15Revision 0

COLR FOR SEQUOYAH UNIT 1 CYCLE 201.21.00.80.6--I---I-~~ -Eea ion KI0.0 I.00---------6 .8 .0 0- --------------7.9 1.0009.0 1.0001200 1.00-- --- ---- ----------- ----- ---- ------0.40.20.0024681012Core Height (Feet)FIGURE 3K(Z) -Normalized FQ(X,Y,Z) as a Function of Core HeightFor Mk-BW and Advanced W17 HTPTMFuelSEQUOYAH-UNIT IPage 15 of 15Revision 0

Tennessee Valley Authority, Post Office Box 2000, Soddy Daisy, Tennessee 37384-2000 December 4, 201310 CFR 50.4ATTN: Document Control DeskU.S. Nuclear Regulatory Commission Washington, D.C. 20555-001 Sequoyah Nuclear Plant, Units 1 and 2Facility Operating License Nos. DPR-77 and DPR-79NRC Docket Nos. 50-327 and 50-328

Subject:

Annual Non-Radiological Environmental Operating ReportThe purpose of this letter is to submit the enclosed Sequoyah Nuclear Plant (SQN) 2013Annual Non-Radiological Environmental Operating Report. The Tennessee ValleyAuthority is submitting this report in accordance with Section 5.4.1 of Appendix B,"Environmental Technical Specifications (Non-Radiological),"

of the SQN, Units 1 and 2,Operating Licenses.

This report, which addresses the period from October 1, 2012,through September 30, 2013, is required to be submitted within 90 days following eachanniversary of issuance of the operating licenses.

Issuance dates for the SQN, Units 1and 2, Operating Licenses were September 17, 1980, and September 15, 1981,respectively, indicating this report to be submitted no later than December 14, 2013.There are no regulatory commitments in this letter. Please direct questions concerning this report to Michael McBrearty at (423) 843-7170.

& eully jjar inPresident Sequoyah Nuclear Plant

Enclosure:

Tennessee Valley Authority

-Sequoyah Nuclear Plant Annual Non-Radiological Environmental Operating Report, October 1, 2012 -September 30, 2013cc: See page 2 U.S. Nuclear Regulatory Commission Page 2December 4, 2013cc (Enclosure):

NRC Regional Administrator

-Region IINRC Senior Resident Inspector

-SQNNRR Project Manager -SQNDivision of Radiological Health -State of Tennessee ENCLOSURE TENNESSEE VALLEY AUTHORITY SEQUOYAH NUCLEAR PLANTANNUAL NON-RADIOLOGICAL ENVIRONMENTAL OPERATING REPORTOctober 1, 2012 through September 30, 2013 TABLE OF CONTENTST A B L E O F C O N T E N T S ................................................................................................................................

1I. IN T R O D U C T IO N ................................................................................................................................

2II. REPORTING FOR THOSE PROGRAMS NOT CONCERNED WITH WATERQUALITY OR PROTECTION OF AQUATIC BIOTA, WHICH ARE REGULATED BY THE CLEAN WATER ACT .....................................................................................................

2II1. ENVIRONMENTAL MONITORING PERFORMED

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

3IV. REPORTS PREVIOUSLY SUBMITTED AS SPECIFIED IN THE SQN NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES) PERMIT ..........................................................

4V. ENVIRONMENTAL TECHNICAL SPECIFICATION (ETS) NONCOMPLIANCES

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

5VI. CHANGES MADE TO APPLICABLE STATE AND FEDERAL PERMIT CERTIFICATIONS

..... 5VII. CHANGES IN FACILITY DESIGN OR OPERATION

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

5VIII. NON-ROUTINE REPORTS .....................................................................................................

6IX .S P E C IA L S T U D IE S ...........................................................................................................................

6X. CHANGES IN APPROVED ENVIRONMENTAL TECHNICAL SPECIFICATIONS

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

7E-1 I. INTRODUCTION The Sequoyah Nuclear Plant Annual Non-Radiological Environmental Operating Report for theperiod of October 1, 2012 through September 30, 2013 has been prepared in accordance withEnvironmental Technical Specifications (ETS) (Non-Radiological),

Appendix B, Section 5.4.1. Thisreport includes a summary of:A. Reporting for those programs not concerned with water quality or protection of aquatic biota,which are regulated by the Clean Water ActB. Environmental monitoring performed C. Reports previously submitted as specified in the SQN National Pollutant Discharge Elimination System (NPDES) Permit No. TN0026450 D. ETS noncompliances and the corrective actions for remediation E. Changes made to applicable State and Federal permits and certifications F. Changes in station design that could involve a significant environmental impact or changethe findings of the Final Environmental Statement (FES)G. Nonroutine reports submitted per ETS Section 4.1H. Special studiesI. Changes in approved ETSReporting, monitoring, and inspections conducted as required by permits and regulations indicated no adverse impacts upon the environment as a result of station operation.

II, REPORTING FOR THOSE PROGRAMS NOT CONCERNED WITH WATER QUALITY ORPROTECTION OF AQUATIC BIOTA, WHICH ARE REGULATED BY THE CLEAN WATERACTA. Third Quarter 2012 Summary of Asbestos Removal Projects

-submitted to the HamiltonCounty Air Pollution Control Bureau on October 3, 2012B. Waste Evaluation Application for TPH Contaminated Soil (Non-PCB Contaminated)

-submitted to Tennessee Department of Environment and Conservation onNovember 17, 2012C. Annual Asbestos Removal Notification

-submitted to Hamilton County Air Pollution ControlBureau on December 6, 2012D. Fourth Quarter 2012 Summary of Asbestos Removal Projects

-submitted to the HamiltonCounty Air Pollution Control Bureau on January 3, 2013E. Report on Diesel Fuel Shipments for Auxiliary Boilers A and B -submitted to the HamiltonCounty Air Pollution Control Bureau on January 3, 2013F. Waste Evaluation Application for Spent Sand Blasting Media -submitted to Tennessee Department of Environment and Conservation on February 13, 2013G. Tier Two Emergency and Hazardous Chemical Inventory

-submitted to Soddy-Daisy FireDepartment, Hamilton County Local Emergency Planning Commission, and the Tennessee Emergency Management Agency on February 26, 2013H. Notification for New Waste Streams 72, 73, and 74 -submitted to Tennessee Department ofEnvironment and Conservation on February 26, 2013I. Air Pollution Control Demolition Permit Request for demolition of Alpine Village -submitted to Hamilton County Air Pollution Control Bureau. Air Pollution Control Demolition Permit3043 issued February 27, 2013J. Annual Hazardous Waste Activity Report for 2012 -submitted to the Tennessee Department of Environment and Conservation on February 28, 2013K. Sequoyah Nuclear Plant Hazardous Waste Minimization Plan -maintained on file atSequoyah Nuclear Plant since March 1, 2013L. First Quarter 2013 Summary of Asbestos Removal Projects

-submitted to the HamiltonCounty Air Pollution Control Bureau on April 8, 2013M. Sequoyah Nuclear Plant Annual Report on The Hours of Operation for diesel permitted equipment

-submitted to the Hamilton County Air Pollution Control Bureau on May 13, 2013N. Waste Evaluation Application for Petroleum Contaminated Gravel -submitted to Tennessee Department of Environment and Conservation on June 7, 2013E-2

0. Waste Evaluation Application for Nonhazardous Roofing Debris -submitted to Tennessee Department of Environment and Conservation on June 7, 2013P. Hazardous Waste Contingency Plan -submitted to Soddy Daisy Fire Department, SoddyDaisy Police Department, Tennessee Emergency Response Commission, Hamilton CountyLocal Emergency Planning Committee, Memorial North Park Hospital, Erlanger MedicalCenter, and TVA Sequoyah Nuclear Fire Operations on June 14, 2013Q. Revised Waste Evaluation Application for Spent Sand Blasting Media to increase approvedamount generated-accepted by Tennessee Department of Environment and Conservation on June 18, 2013R. Revised Tier Two Emergency and Hazardous Chemical Inventory

-submitted toSoddy Daisy Fire Department, Hamilton County Local Emergency Planning Commission, and the Tennessee Emergency Management Agency on June 24, 2013S. Forms A and R Toxic Chemical Release Information CY2011 Required by Emergency Planning and Community Right to Know Act -submitted to the Environmental Protection Agency EPCRA Reporting Center and Tennessee Department of Environment andConservation on June 28, 2013T. Written Annual Document Log of PCBs and PCB Items for Calendar Year 2012 -maintained on file since June 25, 2013U. Second Quarter 2013 Summary of Asbestos Removal Projects

-submitted to the HamiltonCounty Air Pollution Control Bureau on July 3, 2013V. Report on Diesel Fuel Shipments for Auxiliary Boilers A and B -submitted to the HamiltonCounty Air Pollution Control Bureau on July 5, 2013W. Notification for New Waste Stream 75 -submitted to Tennessee Department of Environment and Conservation on July 11, 2013Ill. ENVIRONMENTAL MONITORING PERFORMED A. Storm water samples collected at required frequencies and Best Management Practices implemented as required by General Industrial Storm Water Discharge Permit TNR050015 B. Semi-annual facility inspections as required by General Industrial Storm Water Discharge Permit TNRO50015 C. Outfall sampling and inspection is performed as required by NPDES Permit TN0026450 (results previously submitted to NRC as required)

D. Monthly erosion and sediment control inspections are conducted as required by GeneralIndustrial Storm Water Discharge Permit TNR050015 E. Weekly tank, piping, and secondary containment inspections are performed as required byGeneral Industrial Storm Water Discharge Permit TNR050015 and the Spill Prevention Controls and Countermeasure PlanF. Weekly and monthly hazardous waste inspections conducted as required by 40CFR261 andby the Tennessee Rule Chapter 1200-1-11, Hazardous Waste Management G. Weekly landfill inspections performed as required by 40CFR258 and by the Tennessee RuleChapter 1200-1-7, Solid Waste Processing and DisposalH. Daily operational hours of Auxiliary Boilers A and B, Emergency Generators 1A, 1 B, 2A, and2B, and Blackout Generators 1 and 2 as required by Federally Enforceable Certificate ofOperation Nos. 4150-10200501-08C and 4150-20200102-11 CI. Monthly operational hours of Auxiliary Boilers A and B, Emergency Generators 1A, 1 B, 2A,and 2B, and Blackout Generators 1 and 2, High Pressure Diesel Fire Pump, Security BackupDiesel Generator, I/S Diesel Generator, and Communications Backup Diesel Generator asrequired by 40CFR63J. Intake forebay aeration system sampling, maintenance, and operation performed as requiredby the State of Tennessee K. Air emissions inspected monthly for equipment permitted by the Hamilton County AirPollution Control BureauL. Refrigeration equipment performance and repairs are tracked weekly to ensure compliance with Title VI of the Clean Air ActM. Waste sampling and characterization as required by 40CFR261 and by the Tennessee RuleChapter 1200, Hazardous Waste Management E-3 N. Quarterly PCB transformer inspections as required by 40CFR7610. Daily inspections of leaking PCB transformers as required by 40CFR761P. PCB spill and leak cleanup as required by 40CFR761Q. Asbestos removal tracking as required by the Hamilton County Air Pollution Control BureauR. Hazardous waste minimization (such as chemical control and substitution) as required by theTennessee Rule Chapter 1200, Hazardous Waste Management S. National Environmental Policy Act (NEPA) reviews conducted to evaluate potential environmental impact of temporary or permanent facility modifications as required by40CFR1 500T. EOC-1201-NPG-SQN(Water)-E

-SQN Environmental Compliance U. Miscellaneous Media ReviewsIV. REPORTS PREVIOUSLY SUBMITTED AS SPECIFIED IN THE SQN NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES) PERMITThe following reports were submitted as specified in the SQN NPDES Permit No. TN0026450, General Industrial Discharge Storm Water Permit No. TNR050015.

A. Monthly Discharge Monitoring Report for September 2012, and August 2012, 101Tcorrections (toxicity results)

-submitted to Tennessee Department of Environment andConservation on October 10, 2012B. Monthly Discharge Monitoring Report for October 2012 -submitted to Tennessee Department of Environment and Conservation on November 10, 2012C. Monthly Discharge Monitoring Report for November 2012 -submitted to Tennessee Department of Environment and Conservation on December 14, 2012D. Monthly Discharge Monitoring Report for December 2012 -submitted to Tennessee Department of Environment and Conservation on January 7, 2013E. Water Withdrawal Registration Forms -submitted to Tennessee Department of Environment and Conservation on February 11, 2013F. 2012 Biocide/Corrosion Treatment Plan (B/CTP) Annual Report -submitted to Tennessee Department of Environment and Conservation on February 11, 2013G. Monthly Discharge Monitoring Report for January 2013 -submitted to Tennessee Department of Environment and Conservation on February 11, 2013H. Monthly Discharge Monitoring Report for February 2013 -submitted to Tennessee Department of Environment and Conservation on March 11, 2013I. DMR -QA Study 33 Address Verification

-submitted to Tennessee Department ofEnvironment and Conservation on March 12, 2013J. Thirty Day Notification and Sixty Day Response to Storm Water Cut-off Concentration Exceedances Outfall 3- submitted to Tennessee Department of Environment andConservation on March 20, 2013K. Multi-Sector Storm Water General Permit 2012 Storm Water Monitoring Report -submitted to Tennessee Department of Environment and Conservation on March 20, 2013L. Monthly Discharge Monitoring Report for March 2013 -submitted to Tennessee Department of Environment and Conservation on April 12, 2013M. Monthly Discharge Monitoring Report for April 2013 -submitted to Tennessee Department ofEnvironment and Conservation on May 10, 2013N. Notification of Intent to reduce inspection frequency for temporarily stabilized areas coveredunder the construction storm water general permit submitted to Tennessee Department ofEnvironment and Conservation on May 13, 20130. Application for Renewal -submitted to Tennessee Department of Environmental andConservation on May 2, 2013P. Monthly Discharge Monitoring Report for May 2013 -submitted to Tennessee Department ofEnvironment and Conservation on June 12, 2013Q. Notice of Termination of coverage for Alpine Village building demolition under the generalpermit for storm water discharges associated with construction activity-TNR191316 submitted to Tennessee Department of Environment and Conservation on June 24, 2013.E-4 R. Monthly Discharge Monitoring Report for June 2013 -submitted to Tennessee Department of Environment and Conservation on July 10, 2013.S. Monthly Discharge Monitoring Report for July 2013 -submitted to Tennessee Department ofEnvironment and Conservation on August 12, 2013T. DMR -QA Study 33 Provider Graded Test Results -submitted to Tennessee Department ofEnvironment and Conservation on August 19, 2013U. Revised operating procedure for the SQN Intake Forebay Fish Refuge submitted toTennessee Department of Environment and Conservation on August 19, 2013.V. Monthly Discharge Monitoring Report for August 2013 -submitted to Tennessee Department of Environment and Conservation on September 12, 2013V. ENVIRONMENTAL TECHNICAL SPECIFICATION (ETS) NONCOMPLIANCES None.VI. CHANGES MADE TO APPLICABLE STATE AND FEDERAL PERMIT CERTIFICATIONS None.VII. CHANGES IN FACILITY DESIGN OR OPERATION In accordance with Technical Specification 5.3.c, facility design and operational changes werereviewed for potential effect on the environment.

This review is completed per Tennessee ValleyAuthority upper tier Instruction IX Environmental Review and implementing Environmental Management System (EMS) procedures Environmental Review Process and Standards andCriteria for Environmental

Reviews, in compliance with the National Environmental Policy Act.A. Special TestsThere were no special tests conducted during this period that met environmental impactcriteriaB. Temporary Alterations There were no temporary alterations conducted during this period that met environmental impact criteria.

C. Design and Operational ChangesThe facility design and operational changes made during this reporting period with apotential impact on the environment were found to' be within the scope of existing permitsand in compliance with environmental regulations.

Those changes reviewed are as follows:Environmental Assessments NoneCategorical Exclusion Checklists

1. Generic SQN Blanket Review2. Generic TVA Paving3. Generic Facilities HVAC4. Generic SQN Fire Hydrant Repair or Replacement

5. Containment Pressure Test6. Alpine Village Demolition

7. Relocation of 2 Siren Sites at SQN8. Relocation of 1 EP Siren for SQN9. Roof Replacement ProjectE-5

10. SQN3556 NFPA Sprinkler Systems Additions and UpgradesVIII. NON-ROUTINE REPORTSNone.IX. SPECIAL STUDIESNone.X. CHANGES IN APPROVED ENVIRONMENTAL TECHNICAL SPECIFICATION There were no changes in approved ETSs during this period.E-6