W3F1-2020-0066, Core Operating Limits Report (COLR) - Cycle 24, Revision 2

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Core Operating Limits Report (COLR) - Cycle 24, Revision 2
ML20316A041
Person / Time
Site: Waterford Entergy icon.png
Issue date: 11/11/2020
From: Wood P
Entergy Operations
To:
Document Control Desk, Office of Nuclear Reactor Regulation
References
W3F1-2020-0066
Download: ML20316A041 (42)
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Text

Entergy Operations, Inc.

17265 River Road Killona, LA 70057-3093 Tel 504-464-3786 Paul Wood Manager, Regulatory Assurance, Waterford 3 W3F1-2020-0066 November 11, 2020 U.S. Nuclear Regulatory Commission Attn: Document Control Desk Washington, DC 20555-0001

Subject:

Core Operating Limits Report (COLR) - Cycle 24, Revision 2 Waterford Steam Electric Station, Unit 3 Docket No. 50-382 Renewed Facility Operating License No. NPF-38 Waterford 3 Technical Specification 6.9.1.11.3 requires submittal of the Core Operating Limits Report for each reload cycle including any mid-cycle revisions or supplements thereto.

Attached is Waterford 3 Core Operating Limits Report for reload Cycle 24 Revision 2.

If you have any questions concerning this submittal, please contact Paul Wood, Regulatory Assurance Manager, at (504) 464-3786 There are no regulatory commitments contained in this correspondence.

Respectfully, Digitally signed by Paul Wood Paul Wood Date: 2020.11.11 09:16:25 -06'00' Paul Wood PW/llb

Attachment:

Waterford 3 Core Operating Limits Report Cycle 24, Revision 2 NRC Region IV Regional Administrator NRC Senior Resident Inspector - Waterford Steam Electric Station, Unit 3 NRR Project Manager

Attachment to W3F1-2020-0066 Waterford 3 Core Operating Limits Report Cycle 24 Revision 2 (Attachment contains 40 pages)

ENTERGY OPERATIONS WATERFORD 3 CORE OPERATING LIMITS REPORT FOR CYCLE 24 REVISION 2

WATERFORD 3 CORE OPERATING LIMITS REPORT CYCLE 24, REVISION 2 INDEX PAGE I. INTRODUCTION 5 II. AFFECTED TECHNICAL SPECIFICATIONS 6 3.1.1.1 Shutdown Margin - Any CEA Withdrawn COLR 3/4 1-1 3.1.1.2 Shutdown Margin - All CEAs Fully Inserted COLR 3/4 1-3 3.1.1.3 Moderator Temperature Coefficient COLR 3/4 1-4 3.1.2.9 Boron Dilution COLR 3/4 1-15 3.1.3.1 Movable Control Assemblies - CEA Position COLR 3/4 1-18 3.1.3.6 Regulating and Group P CEA Insertion Limits COLR 3/4 1-25 3.2.1 Linear Heat Rate COLR 3/4 2-1 3.2.3 Azimuthal Power Tilt - Tq COLR 3/4 2-4 3.2.4 DNBR Margin COLR 3/4 2-6 3.2.7 Axial Shape Index COLR 3/4 2-12 3.9.1 Boron Concentration COLR 3/4 9-1 III. METHODOLOGIES 38 LIST OF EFFECTIVE PAGES Revision 2 Pages 1-6, COLR 3/4 1-1, 1-3, 1-4, 1-15, 1-18, 1-25, 2-1, 2-4, 2-6, 2-12, 9-1, and Pages 38 - 40 WATERFORD 3 Page 2 CYCLE 24 REVISION 2

LIST OF FIGURES PAGE COLR Figure 1 Shutdown Margin Versus Cold Leg Temperature COLR 3/4 1-3A COLR Figure 2 Moderator Temperature Coefficient Versus % of COLR 3/4 1-4A Rated Thermal Power COLR Figure 3 Required Power Reduction After Single CEA COLR 3/4 1-18A Deviation COLR Figure 4 Regulating CEA Group Insertion Limits Versus COLR 3/4 1-25A Thermal Power COLR Figure 5 Group P CEA Group Insertion Limits Versus COLR 3/4 1-25B Thermal Power COLR Figure 6 Not Used COLR 3/4 2-1A COLR Figure 7 Not Used COLR 3/4 2-1B COLR Figure 8 Allowable DNBR with Any CEAC Operable COLR 3/4 2-6A (COLSS Out of Service)

COLR Figure 8A Subset of Allowable DNBR with Any CEAC Operable COLR 3/4 2-6B (COLSS Out of Service)

COLR Figure 8.1 Not Used COLR 3/4 2-6C COLR Figure 8.1A Not Used COLR 3/4 2-6D COLR Figure 9 Allowable DNBR with No CEAC(s) Operable COLR 3/4 2-6E (COLSS Out of Service)

COLR Figure 9A Subset of Allowable DNBR with No CEAC(s) Operable COLR 3/4 2-6F (COLSS Out of Service)

COLR Figure 9.1 Not Used COLR 3/4 2-6G COLR Figure 9.1A Not Used COLR 3/4 2-6H LIST OF EFFECTIVE FIGURE PAGES Revision 2 COLR 3/4 1-3A, 1-4A, 1-18A, 1-25A, 1-25B, 2-1A, 2-1B, 2-6A, 2-6B, 2-6C, 2-6D, 2-6E, 2-6F, 2-6G, 2-6H WATERFORD 3 Page 3 CYCLE 24 REVISION 2

LIST OF TABLES PAGE COLR Table 1 Required Monitoring Frequencies for Backup COLR 3/4 1-15A Boron Dilution Detection as a Function of Operating Charging Pumps and Plant Operational Modes for Keff Greater Than 0.98.

COLR Table 2 Required Monitoring Frequencies for Backup COLR 3/4 1-15B Boron Dilution Detection as a Function of Operating Charging Pumps and Plant Operational Modes for Keff Greater Than 0.97 and Less Than or Equal to 0.98.

COLR Table 3 Required Monitoring Frequencies for Backup COLR 3/4 1-15C Boron Dilution Detection as a Function of Operating Charging Pumps and Plant Operational Modes for Keff Greater Than 0.96 and Less Than or Equal to 0.97.

COLR Table 4 Required Monitoring Frequencies for Backup COLR 3/4 1-15D Boron Dilution Detection as a Function of Operating Charging Pumps and Plant Operational Modes for Keff Greater Than 0.95 and Less Than or Equal to 0.96.

COLR Table 5 Required Monitoring Frequencies for Backup COLR 3/4 1-15E Boron Dilution Detection as a Function of Operating Charging Pumps and Plant Operational Modes for Keff Greater Than or Equal to 0.95.

LIST OF EFFECTIVE TABLE PAGES Revision 2 COLR 3/4 1-15A through COLR 3/4 1-15E WATERFORD 3 Page 4 CYCLE 24 REVISION 2

WATERFORD 3 CORE OPERATING LIMITS REPORT CYCLE 24, REVISION 2 I. INTRODUCTION This CORE OPERATING LIMITS REPORT (COLR) has been prepared in accordance with the requirements of Waterford 3 Technical Specification 6.9.1.11 for Waterford 3 Cycle 24. The core operating limits have been developed using the NRC approved methodologies specified in Section III. This is Revision 2 of the Cycle 24 COLR.

The major changes between the Cycle 24, Revision 2, COLR and the Cycle 24, Revision 1, COLR are listed below:

The requirements for Modes 1 and 2 were added. There were no changes to any Mode 1-6 limits from the latest revision of the Cycle 23 COLR.

WATERFORD 3 Page 5 CYCLE 24 REVISION 2

II. AFFECTED TECHNICAL SPECIFICATIONS WATERFORD 3 Page 6 CYCLE 24 REVISION 2

CORE OPERATING LIMITS REPORT SHUTDOWN MARGIN - ANY CEA WITHDRAWN 3.1.1.1 The SHUTDOWN MARGIN shall be greater than or equal to 5.15% k/k when Tavg is greater than 200 °F or 2.0% k/k when Tavg is less than or equal to 200 °F.

WATERFORD 3 COLR 3/4 1-1 CYCLE 24 REVISION 2

CORE OPERATING LIMITS REPORT SHUTDOWN MARGIN - ALL CEAs FULLY INSERTED 3.1.1.2 The SHUTDOWN MARGIN shall be maintained within the region of acceptable operation of COLR Figure 1.

WATERFORD 3 COLR 3/4 1-3 CYCLE 24 REVISION 2

Shutdown Margin Versus Cold Leg Temperature (All CEAs Fully Inserted) 6 5

(500 oF, 4.6%)

4 Shutdown Margin (%K/K) 3 Acceptable Operation 2

(400 oF, 1.5%)

1 Unacceptable Operation 0

0 100 200 300 400 500 600 o

Cold Leg Temperature ( F)

COLR Figure 1 WATERFORD 3 COLR 3/4 1-3A CYCLE 24 REVISION 2

CORE OPERATING LIMITS REPORT MODERATOR TEMPERATURE COEFFICIENT 3.1.1.3 The Moderator Temperature Coefficient (MTC) shall be maintained within the region of acceptable operation of COLR Figure 2.

WATERFORD 3 COLR 3/4 1-4 CYCLE 24 REVISION 2

WATERFORD 3 COLR 3/4 1-4A CYCLE 24 REVISION 2 CORE OPERATING LIMITS REPORT BORON DILUTION 3.1.2.9 See COLR Tables 1 through 5 for required RCS boron concentration monitoring frequencies and Charging Pump operation limits.

SURVEILLANCE REQUIREMENTS Each required boron dilution alarm shall be adjusted to less than or equal to 1.75 times (1.75x) the existing neutron flux (cps) at the following frequencies:

a. No sooner than one half hour after shutdown and no later than 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> after shutdown.
b. At least once per one-half (1/2) hour if the reactor has been shut down > 0.5 hour5.787037e-5 days <br />0.00139 hours <br />8.267196e-6 weeks <br />1.9025e-6 months <br /> but < 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br />
c. At least once per hour if the reactor has been shutdown > 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> but < 10 hours1.157407e-4 days <br />0.00278 hours <br />1.653439e-5 weeks <br />3.805e-6 months <br />.
d. At least once per 5 hours5.787037e-5 days <br />0.00139 hours <br />8.267196e-6 weeks <br />1.9025e-6 months <br /> if the reactor has been shut down > 10 hours1.157407e-4 days <br />0.00278 hours <br />1.653439e-5 weeks <br />3.805e-6 months <br /> but < 25 hours2.893519e-4 days <br />0.00694 hours <br />4.133598e-5 weeks <br />9.5125e-6 months <br />.
e. At least once per 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> if the reactor has been shut down > 25 hours2.893519e-4 days <br />0.00694 hours <br />4.133598e-5 weeks <br />9.5125e-6 months <br /> but < 21 days.
f. At least once per 7 days, if the reactor has been shutdown 21 days.

WATERFORD 3 COLR 3/4 1-15 CYCLE 24 REVISION 2

COLR TABLE 1 REQUIRED MONITORING FREQUENCIES FOR BACKUP BORON DILUTION DETECTION AS A FUNCTION OF OPERATING CHARGING PUMPS AND PLANT OPERATIONAL MODES FOR Keff GREATER THAN 0.98 Keff >0.98 OPERATIONAL Number of Operating Charging Pumps*

MODE 0 1 2 3 3 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> 0.75 hours8.680556e-4 days <br />0.0208 hours <br />1.240079e-4 weeks <br />2.85375e-5 months <br /> Operation not allowed **

4 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> Operation not allowed **

5 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> Operation not allowed **

RCS filled 5 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> Operation not allowed **

RCS partially drained 6 Operation not allowed **

  • Charging pump OPERABILITY for any period of time shall constitute OPERABILITY for the entire monitoring frequency.
    • Charging pumps shall be verified to be inoperable by removing power to the required number.

WATERFORD 3 COLR 3/4 1-15A CYCLE 24 REVISION 2

COLR TABLE 2 REQUIRED MONITORING FREQUENCIES FOR BACKUP BORON DILUTION DETECTION AS A FUNCTION OF OPERATING CHARGING PUMPS AND PLANT OPERATIONAL MODES FOR Keff GREATER THAN 0.97 AND LESS THAN OR EQUAL TO 0.98 0.98 Keff >0.97 OPERATIONAL Number of Operating Charging Pumps*

MODE 0 1 2 3 3 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> 2.0 hours0 days <br />0 hours <br />0 weeks <br />0 months <br /> 0.5 hours5.787037e-5 days <br />0.00139 hours <br />8.267196e-6 weeks <br />1.9025e-6 months <br /> Operation not allowed**

4 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> 0.75 hours8.680556e-4 days <br />0.0208 hours <br />1.240079e-4 weeks <br />2.85375e-5 months <br /> Operation not allowed**

5 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> 0.75 hours8.680556e-4 days <br />0.0208 hours <br />1.240079e-4 weeks <br />2.85375e-5 months <br /> Operation not allowed**

RCS filled 5 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> 0.5 hours5.787037e-5 days <br />0.00139 hours <br />8.267196e-6 weeks <br />1.9025e-6 months <br /> Operation not allowed**

RCS partially drained 6 Operation not allowed**

  • Charging pump OPERABILITY for any period of time shall constitute OPERABILITY for the entire monitoring frequency.
    • Charging pumps shall be verified to be inoperable by removing power to the required number.

WATERFORD 3 COLR 3/4 1-15B CYCLE 24 REVISION 2

COLR TABLE 3 REQUIRED MONITORING FREQUENCIES FOR BACKUP BORON DILUTION DETECTION AS A FUNCTION OF OPERATING CHARGING PUMPS AND PLANT OPERATIONAL MODES FOR Keff GREATER THAN 0.96 AND LESS THAN OR EQUAL TO 0.97 0.97 Keff >0.96 OPERATIONAL Number of Operating Charging Pumps*

MODE 0 1 2 3 3 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> 3.0 hours0 days <br />0 hours <br />0 weeks <br />0 months <br /> 1.25 hours2.893519e-4 days <br />0.00694 hours <br />4.133598e-5 weeks <br />9.5125e-6 months <br /> 0.5 hours5.787037e-5 days <br />0.00139 hours <br />8.267196e-6 weeks <br />1.9025e-6 months <br /> 4 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> 1.5 hours5.787037e-5 days <br />0.00139 hours <br />8.267196e-6 weeks <br />1.9025e-6 months <br /> Operation not allowed**

5 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> 1.5 hours5.787037e-5 days <br />0.00139 hours <br />8.267196e-6 weeks <br />1.9025e-6 months <br /> Operation not allowed**

RCS filled 5 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> 0.75 hours8.680556e-4 days <br />0.0208 hours <br />1.240079e-4 weeks <br />2.85375e-5 months <br /> Operation not allowed**

RCS partially drained 6 Operation not allowed**

  • Charging pump OPERABILITY for any period of time shall constitute OPERABILITY for the entire monitoring frequency.
    • Charging pumps shall be verified to be inoperable by removing power to the required number.

WATERFORD 3 COLR 3/4 1-15C CYCLE 24 REVISION 2

COLR TABLE 4 REQUIRED MONITORING FREQUENCIES FOR BACKUP BORON DILUTION DETECTION AS A FUNCTION OF OPERATING CHARGING PUMPS AND PLANT OPERATIONAL MODES FOR Keff GREATER THAN 0.95 AND LESS THAN OR EQUAL TO 0.96 0.96 Keff >0.95 OPERATIONAL Number of Operating Charging Pumps*

MODE 0 1 2 3 3 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> 4.0 hours0 days <br />0 hours <br />0 weeks <br />0 months <br /> 2.0 hours0 days <br />0 hours <br />0 weeks <br />0 months <br /> 1.0 hours0 days <br />0 hours <br />0 weeks <br />0 months <br /> 4 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> 2.25 hours2.893519e-4 days <br />0.00694 hours <br />4.133598e-5 weeks <br />9.5125e-6 months <br /> 0.75 hours8.680556e-4 days <br />0.0208 hours <br />1.240079e-4 weeks <br />2.85375e-5 months <br /> Operation not allowed**

5 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> 2.0 hours0 days <br />0 hours <br />0 weeks <br />0 months <br /> 0.75 hours8.680556e-4 days <br />0.0208 hours <br />1.240079e-4 weeks <br />2.85375e-5 months <br /> Operation not allowed**

RCS filled 5 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> 2.0 hours0 days <br />0 hours <br />0 weeks <br />0 months <br /> 0.5 hours5.787037e-5 days <br />0.00139 hours <br />8.267196e-6 weeks <br />1.9025e-6 months <br /> Operation not allowed**

RCS partially drained 6 Operation not allowed**

  • Charging pump OPERABILITY for any period of time shall constitute OPERABILITY for the entire monitoring frequency.
    • Charging pumps shall be verified to be inoperable by removing power to the required number.

WATERFORD 3 COLR 3/4 1-15D CYCLE 24 REVISION 2

COLR TABLE 5 REQUIRED MONITORING FREQUENCIES FOR BACKUP BORON DILUTION DETECTION AS A FUNCTION OF OPERATING CHARGING PUMPS AND PLANT OPERATIONAL MODES FOR Keff LESS THAN OR EQUAL TO 0.95 Keff 0.95 OPERATIONAL Number of Operating Charging Pumps*

MODE 0 1 2 3 3 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> 5.0 hours0 days <br />0 hours <br />0 weeks <br />0 months <br /> 2.0 hours0 days <br />0 hours <br />0 weeks <br />0 months <br /> 1.0 hours0 days <br />0 hours <br />0 weeks <br />0 months <br /> 4 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> 2.75 hours8.680556e-4 days <br />0.0208 hours <br />1.240079e-4 weeks <br />2.85375e-5 months <br /> 1.0 hours0 days <br />0 hours <br />0 weeks <br />0 months <br /> Operation not allowed**

5 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> 3.0 hours0 days <br />0 hours <br />0 weeks <br />0 months <br /> 1.0 hours0 days <br />0 hours <br />0 weeks <br />0 months <br /> 0.5 hours5.787037e-5 days <br />0.00139 hours <br />8.267196e-6 weeks <br />1.9025e-6 months <br /> RCS filled 5 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> 2.5 hours5.787037e-5 days <br />0.00139 hours <br />8.267196e-6 weeks <br />1.9025e-6 months <br /> 0.75 hours8.680556e-4 days <br />0.0208 hours <br />1.240079e-4 weeks <br />2.85375e-5 months <br /> Operation not allowed**

RCS partially drained 6 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> 2.25 hours2.893519e-4 days <br />0.00694 hours <br />4.133598e-5 weeks <br />9.5125e-6 months <br /> 0.5 hours5.787037e-5 days <br />0.00139 hours <br />8.267196e-6 weeks <br />1.9025e-6 months <br /> Operation not allowed**

  • Charging pump OPERABILITY for any period of time shall constitute OPERABILITY for the entire monitoring frequency.
    • Charging pumps shall be verified to be inoperable by removing power to the required number.

WATERFORD 3 COLR 3/4 1-15E CYCLE 24 REVISION 2

CORE OPERATING LIMITS REPORT MOVABLE CONTROL ASSEMBLIES - CEA POSITION 3.1.3.1.a With one CEA trippable but misaligned from any other CEA in its group by more than 19 inches, operation in MODES 1 and 2 may continue, provided that core power is reduced in accordance with COLR Figure 3.

3.1.3.1.b With one or more CEAs trippable but misaligned from any other CEAs in its group by more than 7 inches but less than or equal to 19 inches, operation in MODES 1 and 2 may continue, provided that core power is reduced in accordance with COLR Figure 3.

NOTES

1. Item 3.1.3.1.a corresponds with ACTION c of Technical Specification 3.1.3.1.
2. Item 3.1.3.1.b corresponds with ACTION d of Technical Specification 3.1.3.1.

WATERFORD 3 COLR 3/4 1-18 CYCLE 24 REVISION 2

Required Power Reduction After Single CEA Deviation 30 Minimum Required Power Reduction Increment (% of Rated Thermal Power) 25 20 15 10 5

0 0 15 30 45 60 Time After CEA Deviation (Minutes)

COLR Figure 3

  • When thermal power is reduced to 60% of rated thermal power per this limit curve, further reduction is not required by this Technical Specification.

WATERFORD 3 COLR 3/4 1-18A CYCLE 24 REVISION 2

CORE OPERATING LIMITS REPORT REGULATING AND GROUP P CEA INSERTION LIMITS 3.1.3.6 The regulating CEA groups and Group P CEAs shall be limited to the withdrawal sequence and to the insertion limits shown on COLR Figure 4 (regulating groups) and Figure 5 (Group P).

WATERFORD 3 COLR 3/4 1-25 CYCLE 24 REVISION 2

Regulating CEA Group Insertion Limits Versus Thermal Power 108" GR. 6 100 90 80 70 Long Term Steady State Short Term Steady State Thermal Power (%)

60 Insertion Limit 50 Insertion Limit Transient Insertion Limit 40 30 20 60" GR. 5 10 60" GR. 6 120" GR. 6 0

Group 6 Group 5 0 30 60 90 120 150 0 30 60 90 120 150 Regulating CEA Group Position (Inches)

COLR Figure 4 WATERFORD 3 COLR 3/4 1-25A CYCLE 24 REVISION 2

Group P CEA Group Insertion Limits Versus Thermal Power 108" 120" 100 90 80 108", 72%

Long Term Steady State 70 Thermal Power (%)

60 Insertion Limit Transient Insertion Limit 50 60" 40 Short Term Steady State 30 Insertion Limit 30" 20 10 0

0 15 30 45 60 75 90 105 120 135 150 Group P CEA Group Position (Inches)

COLR Figure 5 WATERFORD 3 COLR 3/4 1-25B CYCLE 24 REVISION 2

CORE OPERATING LIMITS REPORT LINEAR HEAT RATE 3.2.1 The linear heat rate shall be maintained:

a. 12.9 kW/ft when COLSS is in service
b. 13.2 kW/ft when COLSS is out of service In accordance with Technical Specification 3.6.1.5 Action a, with the minimum containment average air temperature less than 95°F but greater than or equal to 90°F, the linear heat rate shall be maintained:
a. 12.7 kW/ft when COLSS is in service
b. 13.0 kW/ft when COLSS is out of service WATERFORD 3 COLR 3/4 2-1 CYCLE 24 REVISION 2

COLR Figure 6 (Not Used)

WATERFORD 3 COLR 3/4 2-1A CYCLE 24 REVISION 2

COLR Figure 7 (Not Used)

WATERFORD 3 COLR 3/4 2-1B CYCLE 24 REVISION 2

CORE OPERATING LIMITS REPORT AZIMUTHAL POWER TILT- Tq 3.2.3 The measured AZIMUTHAL POWER TILT shall be maintained 0.03.

WATERFORD 3 COLR 3/4 2-4 CYCLE 24 REVISION 2

CORE OPERATING LIMITS REPORT DNBR MARGIN 3.2.4 The DNBR margin shall be maintained by one of the following methods:

a) When COLSS is in service and neither CEAC is operable: maintain COLSS calculated core power less than or equal to COLSS calculated core power operating limit based on DNBR decreased by 13% RATED THERMAL POWER.

b) When COLSS is out of service and at least one CEAC is operable:

operate within the region of acceptable operation shown on COLR Figure 8 (or 8A as appropriate), using any operable CPC channel.

c) When COLSS is out of service and neither CEAC is operable: operate within the region of acceptable operation shown on COLR Figure 9 (or 9A as appropriate), using any operable CPC channel.

NOTES

1. The various DNBR limit lines shown between the vertical ASI limit lines at +/-0.12 and +/-0.22 on Figures 8, 8A, 9, and 9A represent the minimum CPC-calculated DNBR value required for operation in the power range displayed in the area above each line. Operation at lower power levels requires that a larger DNBR value be maintained. For example, with ASI equal to -0.12 and a core power of 85%, CPC calculated DNBR must be a minimum of 2.62 with any CEAC Operable. At 79% power and the same ASI value with any CEAC Operable, the calculated DNBR must be at least 3.12. At 65% power and the same ASI value, DNBR must be a minimum of 4.28. At 90% power and an ASI value of +0.08, DNBR must be no less than 2.37.
2. The vertical ASI limit lines shown at +/-0.12 and +/-0.22 on Figures 8, 8A, 9, and 9A may be considered as extending beyond the maximum DNBR value on the Y-axis of the charts. Therefore, when monitoring DNBR with these figures, compliance is achieved at all power levels shown on a given figure when DNBR is greater than the largest DNBR value on the vertical scale.
3. Figure 8A is provided to offer better resolution for the four power ranges in the lower portion of Figure 8. Figure 9A is provided to offer better resolution for the four power ranges in the lower portion of Figure 9.
4. Equations are provided on Figures 8, 8A, 9, and 9A to assist in determining DNBR limits in the sloped portions of the plots.

WATERFORD 3 COLR 3/4 2-6 CYCLE 24 REVISION 2

Allowable DNBR with Any CEAC Operable (COLSS Out of Service) 8.50 8.50 Acceptable Operation Acceptable 8.25 Acceptable Operation 8.25 Operation 20% Power 100% 20% Power < 50%

20% Power < 50%

8.00 (+0.15, 7.94) 8.00

(-0.04, 7.94) (+0.12, 7.94) 7.75 7.75

(-0.12, 7.65) 7.50 7.50 DNBR = (3.778 x ASI) + 8.091

(+0.22, 7.34) 7.25 7.25

(-0.22, 7.26) DNBR = (-8.572 x ASI) + 9.226 7.00 7.00 6.75 6.75 6.50 6.50 Acceptable Operation 6.25 6.25 50% Power 100%

6.00 6.00 5.75 5.75 CPC Minimum DNBR 5.50 5.50 5.25 5.25 5.00 DNBR = (2.046 x ASI) + 4.520 5.00 4.75 4.75 (0.00, 4.52) 4.50 4.50

(+0.12, 4.52) 4.25 4.25

(-0.12, 4.28) 4.00 Acceptable Operation 4.00 DNBR = (1.400 x ASI) + 3.288 70% Power 100%

3.75 3.75 3.50 3.50

(+0.03, 3.33)

(+0.12, 3.33) 3.25 3.25

(-0.12, 3.12)

Acceptable Operation 3.00 3.00 80% Power 100% (+0.07, 2.81)

DNBR = (1.000 x ASI) + 2.740 (+0.12, 2.81) 2.75 2.75

(-0.12, 2.62)

Acceptable Operation 2.50 (+0.08, 2.37) 2.50 DNBR = (0.750 x ASI) + 2.310 90% Power 100%

(+0.12, 2.37) 95% Power 100%

2.25 2.25

(-0.12, 2.22) Acceptable Operation

(+0.12, 2.17) 2.00 2.00

(-0.12, 2.04) DNBR = (0.542 x ASI) + 2.105 Unacceptable Operation 1.75 1.75 1.50 1.50

-0.3 -0.2 -0.1 0.0 0.1 0.2 0.3 Core Average ASI (COLR Figure 8)

WATERFORD 3 COLR 3/4 2-6A CYCLE 24 REVISION 2

Subset of Allowable DNBR with Any CEAC Operable (COLSS Out of Service) 4.00 4.00 3.75 3.75 Acceptable Operation 70% Power 100%

3.50 3.50 DNBR = (1.400 x ASI) + 3.288

(+0.03, 3.33)

(+0.12, 3.33) 3.25 3.25

(-0.12, 3.12) Acceptable Operation 80% Power 100%

3.00 3.00 CPC Minimum DNBR DNBR = (1.000 x ASI) + 2.740 (+0.07, 2.81)

(+0.12, 2.81) 2.75 2.75

(-0.12, 2.62)

Acceptable Operation 90% Power 100%

2.50 2.50 DNBR = (0.750 x ASI) + 2.310 (+0.08, 2.37)

(+0.12, 2.37) 2.25 Acceptable Operation 2.25

(-0.12, 2.22) 95% Power 100% (+0.12, 2.17)

(-0.12, 2.04) 2.00 2.00 DNBR = (0.542 x ASI) + 2.105 Unacceptable Operation 1.75 1.75 1.50 1.50

-0.2 -0.1 0.0 0.1 0.2 Core Average ASI (COLR Figure 8A)

WATERFORD 3 COLR 3/4 2-6B CYCLE 24 REVISION 2

COLR Figure 8.1 (Not Used)

WATERFORD 3 COLR 3/4 2-6C CYCLE 24 REVISION 2

COLR Figure 8.1A (Not Used)

WATERFORD 3 COLR 3/4 2-6D CYCLE 24 REVISION 2

Allowable DNBR with No CEAC(s) Operable (COLSS Out of Service) 8.25 8.25 Acceptable Operation Acceptable Operation 20% Power < 50%

Acceptable Operation 20% Power 100%

8.00 8.00 20% Power < 50% (+0.15, 7.94)

(-0.04, 7.94) (+0.12, 7.94) 7.75 7.75

(-0.12, 7.65) 7.50 7.50 DNBR = (3.778 x ASI) + 8.091

(+0.22, 7.34) 7.25 7.25

(-0.22, 7.26) 7.00 7.00 DNBR = (-8.572 x ASI) + 9.226 Acceptable Operation 6.75 6.75 50% Power 100%

6.50 6.50 6.25 6.25 6.00 6.00 5.75 5.75 CPC Minimum DNBR DNBR = (2.765 x ASI) + 5.618 5.50 5.50

(-0.05, 5.48) (+0.12, 5.48)

(-0.12, 5.28) 5.25 5.25 Acceptable Operation 5.00 5.00 70% Power 100%

4.75 4.75 4.50 4.50 DNBR = (1.923 x ASI) + 4.091 4.25 4.25

(+0.01, 4.11) (+0.12, 4.11) 4.00 4.00

(-0.12, 3.86) 3.75 3.75 Acceptable Operation 90% Power 100%

3.50 3.50 3.25 DNBR = (1.176 x ASI) + 2.941 3.25

(+0.05, 3.00) (+0.12, 3.00) 3.00 3.00 95% Power 100%

(-0.12, 2.80) Acceptable Operation 2.75 2.75

(+0.07, 2.79) (+0.12, 2.79)

(-0.12, 2.60) Unacceptable 2.50 Operation 2.50 DNBR = (1.000 x ASI) + 2.720 2.25 2.25

-0.3 -0.2 -0.1 0.0 0.1 0.2 0.3 Core Average ASI (COLR Figure 9)

WATERFORD 3 COLR 3/4 2-6E CYCLE 24 REVISION 2

Subset of Allowable DNBR with No CEAC(s) Operable (COLSS Out of Service) 5.75 5.75 Acceptable Operation 50% Power 100%

5.50 5.50

(+0.12, 5.48)

(-0.05, 5.48)

(-0.12, 5.28) 5.25 5.25 DNBR = (2.765 x ASI) + 5.618 5.00 5.00 4.75 Acceptable Operation 4.75 70% Power 100%

4.50 4.50 DNBR = (1.923 x ASI) + 4.091 CPC Minimum DNBR 4.25 4.25

(+0.01, 4.11) (+0.12, 4.11) 4.00 4.00

(-0.12, 3.86) 3.75 3.75 Acceptable Operation 90% Power 100%

3.50 3.50 3.25 3.25 DNBR = (1.176 x ASI) + 2.941 (+0.05, 3.00) (+0.12, 3.00) 3.00 3.00 Acceptable Operation (+0.07, 2.79)

(-0.12, 2.80) 95% Power 100% (+0.12, 2.79) 2.75 2.75

(-0.12, 2.60) DNBR = (1.000 x ASI) + 2.720 2.50 2.50 Unacceptable Operation 2.25 2.25

-0.2 -0.1 0.0 0.1 0.2 Core Average ASI (COLR Figure 9A)

WATERFORD 3 COLR 3/4 2-6F CYCLE 24 REVISION 2

COLR Figure 9.1 (Not Used)

WATERFORD 3 COLR 3/4 2-6G CYCLE 24 REVISION 2

COLR Figure 9.1A (Not Used)

WATERFORD 3 COLR 3/4 2-6H CYCLE 24 REVISION 2

CORE OPERATING LIMITS REPORT AXIAL SHAPE INDEX 3.2.7 The AXIAL SHAPE INDEX (ASI) shall be maintained within the following limits:

COLSS Operable 0.16 ASI +0.16 for THERMAL POWERS 50% of RATED THERMAL POWER 0.26 ASI +0.26 for THERMAL POWERS from 20% to <50%

of RATED THERMAL POWER COLSS Out of Service 0.12 ASI +0.12 for THERMAL POWERS 50% of RATED THERMAL POWER 0.22 ASI +0.22 for THERMAL POWERS from 20% to <50%

of RATED THERMAL POWER WATERFORD 3 COLR 3/4 2-12 CYCLE 24 REVISION 2

CORE OPERATING LIMITS REPORT BORON CONCENTRATION 3.9.1 While in Mode 6, the RCS boron concentration shall be maintained sufficiently to ensure that the more restrictive of the following reactivity conditions is met:

a. Either Keff of 0.95 or less, or
b. A boron concentration of greater than or equal to 2050 ppm.

WATERFORD 3 COLR 3/4 9-1 CYCLE 24 REVISION 2

III. METHODOLOGIES The analytical methods used to determine the core operating limits listed above are those previously reviewed and approved by the NRC in:

1. Qualification of the PHOENIX-P/ANC Nuclear Design System for Pressurized Water Reactor Cores, WCAP-11596-P-A, June 1988; ANC: A Westinghouse Advanced Nodal Computer Code, WCAP-10965-P-A, September 1986; and ANC: A Westinghouse Advanced Nodal Computer Code: Enhancements to ANC Rod Power Recovery, WCAP-10965-P-A Addendum 1, April 1989. (Methodology for Specifications 3.1.1.1 and 3.1.1.2 for Shutdown Margins, 3.1.1.3 for MTC, 3.1.3.6 for Regulating and Group P CEA Insertion Limits, 3.1.2.9 Boron Dilution (Calculation of CBC and IBW),

and 3.9.1 Boron Concentration).

2. "C-E Method for Control Element Assembly Ejection Analysis," CENPD-190-A, Revision 0, January 1976. (Methodology for Specification 3.1.3.6 for Regulating and Group P CEA Insertion Limits and 3.2.3 for Azimuthal Power Tilt.)
3. "Modified Statistical Combination of Uncertainties" CEN-356(V)-P-A, Revision 1-P-A, May 1988. (Methodology for Specification 3.2.4.c and 3.2.4.d for DNBR Margin and 3.2.7 for ASI.)
4. "Calculative Methods for the CE Large Break LOCA Evaluation Model For the Analysis of C-E and W Designed NSSS, CENPD-132, Supplement 3-P-A, June 1985. (Methodology for Specification 3.1.1.3 for MTC, 3.2.1 for Linear Heat Rate, 3.2.3 for Azimuthal Power Tilt and 3.2.7 for ASI.)
5. "Calculative Methods for the ABB CE Small Break LOCA Evaluation Model,"

CENPD-137-P, August 1974; Supplement 2-P-A, April 1998. (Methodology for Specification 3.1.1.3 for MTC, 3.2.1 for Linear Heat Rate, 3.2.3 for Azimuthal Power Tilt and 3.2.7 for ASI.)

6. Technical Description Manual for the CENTS Code, WCAP-15996-P-A, Revision 1, March 2005. (Methodology for Specification 3.1.1.1 and 3.1.1.2 for Shutdown Margins, 3.1.1.3 for MTC, 3.1.3.1 for Movable Control Assemblies - CEA Position, 3.1.3.6 for Regulating and Group P CEA Insertion Limits, and 3.2.4.b for DNBR Margin)

WATERFORD 3 Page 38 CYCLE 24 REVISION 2

7. Implementation of ZIRLO Material Cladding in CE Nuclear Power Fuel Assembly Designs, CENPD-404-P-A, November 2001. (Methodology for Specification 3.1.1.3 for MTC, 3.2.1 for Linear Heat Rate, 3.2.3 for Azimuthal Power Tilt, and 3.2.7 for ASI).
8. Qualification of the Two-Dimensional Transport Code PARAGON, WCAP-16045-P-A, August 2004. (Methodology for Specifications 3.1.1.1 and 3.1.1.2 for Shutdown Margins, 3.1.1.3 for MTC, 3.1.3.6 for Regulating and Group P CEA Insertion Limits, 3.1.2.9 Boron Dilution (Calculation of CBC & IBW),

3.2.4.b for DNBR Margin and 3.9.1 Boron Concentration).

9. "Implementation of Zirconium Diboride Burnable Absorber Coatings in CE Nuclear Power Fuel Assembly Designs," WCAP-16072-P-A, Revision 0, August 2004 (Methodology for Specification 3.1.1.3 for MTC, 3.2.1 for Linear Heat Rate, 3.2.3 for Azimuthal Power Tilt, and 3.2.7 for ASI).
10. CE 16 x 16 Next Generation Fuel Core Reference Report, WCAP-16500-P and Final Safety Evaluation for Westinghouse Electric Company (Westinghouse) Topical Report (TR) WCAP-16500-P, Revision 0, CE

[Combustion Engineering] 16x16 Next Generation Fuel [(NGF)] Core Reference Report, (Methodology for Specification 3.1.1.3 for MTC, 3.2.1 for Linear Heat Rate, 3.2.3 for Azimuthal Power Tilt, 3.2.4.b, 3.2.4.c, and 3.2.4.d for DNBR Margin, and 3.2.7 for ASI).

11. Optimized ZIRLOTM, WCAP-12610-P-A and CENPD-404-P-A Addendum 1-A, July 2006. (Methodology for Specification 3.1.1.3 for MTC, 3.2.1 for Linear Heat Rate, 3.2.3 for Azimuthal Power Tilt, and 3.2.7 for ASI.)
12. Westinghouse Correlations WSSV and WSSV-T for Predicting Critical Heat Flux in Rod Bundles with Side-Supported Mixing Vanes, WCAP-16523-P-A Revision 0, August 2007; and Final Safety Evaluation for Westinghouse Electric Company (Westinghouse) Topical Report (TR), WCAP-16523-P, Westinghouse Correlations WSSV and WSSV-T for Predicting Critical Heat Flux in Rod Bundles with Side-Supported Mixing Vanes, (Methodology for Specification 3.2.4.b, 3.2.4.c, and 3.2.4.d for DNBR Margin.)
13. ABB Critical Heat Flux Correlations for PWR Fuel, CENPD-387-P-A Revision 0, May 2000. (Methodology for Specification 3.2.4.b, 3.2.4.c, and 3.2.4.d for DNBR Margin and 3.2.7 for ASI.)

WATERFORD 3 Page 39 CYCLE 24 REVISION 2

14. Calculative Methods for the CE Nuclear Power Large Break LOCA Evaluation Model -Improvement to 1999 Large Break LOCA EM Steam Cooling Model for Less Than 1 in/sec Core Reflood CENPD-132, Supplement 4-P-A, Addendum 1-P and Final Safety Evaluation for Westinghouse Electric Company (Westinghouse) Topical Report (TR)

CENPD-132 Supplement 4-P-A, Addendum 1-P, Calculative Methods for the CE [Combustion Engineering] Nuclear Power Large Break LOCA Evaluation Model - Improvement to 1999 Large Break LOCA EM Steam Cooling Model for Less Than 1 in/sec Core Reflood, (Methodology for Specification 3.1.1.3 for MTC, 3.2.1 for Linear Heat Rate, 3.2.3 for Azimuthal Power Tilt, and 3.2.7 for ASI).

15. Application of CE Setpoint Methodology for CE 16x16 Next Generation Fuel (NGF), WCAP 16500 P-A, Supplement 1, Revision 1, December 2010. (Methodology for Specification 3.2.4.b, 3.2.4.c, and 3.2.4.d for DNBR Margin.)

WATERFORD 3 Page 40 CYCLE 24 REVISION 2

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