W3F1-2023-0052, Core Operating Limits Report (COLR) - Cycle 26, Revision O

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Core Operating Limits Report (COLR) - Cycle 26, Revision O
ML23311A435
Person / Time
Site: Waterford Entergy icon.png
Issue date: 11/07/2023
From: Couture P
Entergy Operations
To:
Office of Nuclear Reactor Regulation, Document Control Desk
References
W3F1-2023-0052
Download: ML23311A435 (42)
v • d • e


Text

entergy Phil Couture (Acting) Manager Regulatory Assurance 601-368-51 02 W3F1 -2023-0052 10 CFR 50.4 November 7, 2023 ATTN: Document Control Desk U.S. Nuclear Regulatory Commission Washington, DC 20555-0001

Subject:

Core Operating Limits Report (COLR) - Cycle 26, Revision O Waterford Steam Electric Station, Unit 3 Docket No. 50-382 Renewed Facility Operating License No. NPF-38 Waterford Steam Electric Station, Unit 3 (Waterford 3) Technical Specification 6.9.1.11.3 requires the submittal of the Core Operating Limits Report (COLR) for each reload cycle including any mid-cycle revisions or supplements thereto. Enclosed is Revision O of the Waterford 3 COLR for reload Cycle 26.

There are no new commitments contained in this submittal.

Should you have any questions concerning this issue, please contact me at 601-368-5102.

Respectfully, Philip Couture PC/lib

Enclosure:

Waterford 3 Core Operating Limits Report Cycle 26, Revision O cc: NRC Region IV Regional Administrator NRC Senior Resident Inspector - Waterford Steam Electric Station, Unit 3 NRC Project Manager - Waterford Steam Electric Station, Unit 3 Entergy Operations, Inc., 17265 River Road, Killona, LA 70057

Enclosure W3F1-2023-0052 Waterford 3 Core Operating Limits Report Cycle 26 Revision 0 (40 pages to follow)

ENTERGY OPERATIONS WATERFORD 3 CORE OPERATING LIMITS REPORT FOR CYCLE 26 REVISION 0

WATERFORD 3 CORE OPERATING LIMITS REPORT CYCLE 26, REVISION 0 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 AFFECTED TECHNICAL SPECIFICATIONS 6 3.1.1.1 Shutdown Margin - Any CEA Withdrawn COLR 3/4 1-1 3.1.1.2 Shutdown Margin - All CEAs Fully Inserted COLR 3/4 1-3 3.1.1.3 Moderator Temperature Coefficient COLR 3/4 1-4 3.1.2.9 Boron Dilution COLR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 0 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 26 REVISION 0

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 at least One CEAC Operable in Each Operable CPC Channel COLR 3/4 2-6A (COLSS Out of Service)

COLR Figure 8A Subset of Allowable DNBR with at least One CEAC Operable in Each Operable CPC Channel 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 using Any Operable CPC Channel (with both CEACs inoperable) COLR 3/4 2-6E (COLSS Out of Service)

COLR Figure 9A Subset of Allowable DNBR with No CEAC(s) Operable using Any Operable CPC Channel (with both CEACs inoperable) 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 0 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 26 REVISION 0

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 0 COLR 3/4 1-15A through COLR 3/4 1-15E WATERFORD 3 Page 4 CYCLE 26 REVISION 0

WATERFORD 3 CORE OPERATING LIMITS REPORT CYCLE 26, REVISION 0 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 26. The core operating limits have been developed using the NRC approved methodologies specified in Section III. This is Revision 0 of the Cycle 26 COLR.

There were no major changes between the Cycle 26, Revision 0, COLR and the Cycle 25, Revision 0, COLR.

WATERFORD 3 Page 5 CYCLE 26 REVISION 0

II. AFFECTED TECHNICAL SPECIFICATIONS WATERFORD 3 Page 6 CYCLE 26 REVISION 0

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 26 REVISION 0

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 26 REVISION 0

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 Cold Leg Temperature (oF)

COLR Figure 1 WATERFORD 3 COLR 3/4 1-3A CYCLE 26 REVISION 0

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 26 REVISION 0

WATERFORD 3 COLR 3/4 1-4A CYCLE 26 REVISION 0 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 26 REVISION 0

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 26 REVISION 0

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 26 REVISION 0

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 26 REVISION 0

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 26 REVISION 0

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 26 REVISION 0

CORE OPERATING LIMITS REPORT MOVABLE CONTROL ASSEMBLIES - CEA POSITION 3.1.3.1.c 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.d 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.

WATERFORD 3 COLR 3/4 1-18 CYCLE 26 REVISION 0

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 26 REVISION 0

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 26 REVISION 0

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 50 Insertion Limit 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 26 REVISION 0

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 26 REVISION 0

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 26 REVISION 0

COLR Figure 6 (Not Used)

WATERFORD 3 COLR 3/4 2-1A CYCLE 26 REVISION 0

COLR Figure 7 (Not Used)

WATERFORD 3 COLR 3/4 2-1B CYCLE 26 REVISION 0

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 26 REVISION 0

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

a) Core Operating Limit Supervisory System (COLSS) in Service:

1. When COLSS is in service maintain COLSS calculated core power less than or equal to COLSS calculated core power operating limit based on DNBR when at least one Control Element Assembly Calculator (CEAC) is operable in each operable Core Protection Calculator (CPC) channel.
2. When COLSS is in service and the CEAC requirements in TS LCO 3.2.4.a.1 are not met 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) COLSS Out of Service:

1. When COLSS is out of service and at least one CEAC is operable in each operable CPC channel operate within the region of acceptable operation shown on COLR Figure 8 (or 8A as appropriate), using any operable CPC channel.
2. When COLSS is out of service and the CEAC requirements in TS LCO 3.2.4.b.1 are not met operate within the region of acceptable operation shown on COLR Figure 9 (or 9A as appropriate), using any operable CPC channel (with both CEACs inoperable).

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 at least one CEAC Operable in each Operable CPC channel.

At 79% power and the same ASI value with at least one CEAC Operable in each Operable CPC channel, 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 26 REVISION 0

Allowable DNBR withAllowable at least One CEAC DNBR withOperable Any CEAC inOperable Each Operable CPC Channel (COLSS (COLSS Out Out of of Service)

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 26 REVISION 0

Subset of Allowable DNBR with Any CEAC Operable Subset of Allowable DNBR with at least One CEAC Operable in Each Operable CPC Channel (COLSS Out of Service)

(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 26 REVISION 0

COLR Figure 8.1 (Not Used)

WATERFORD 3 COLR 3/4 2-6C CYCLE 26 REVISION 0

COLR Figure 8.1A (Not Used)

WATERFORD 3 COLR 3/4 2-6D CYCLE 26 REVISION 0

Allowable DNBR with No CEAC(s) Operable using Allowable Any DNBR Operable with CPC Channel No CEAC(s) Operable(with both CEACs inoperable)

(COLSS Out of Service)

(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 26 REVISION 0

Subset of Allowable DNBR with NoSubset CEAC(s) OperableDNBR of Allowable usingwith AnyNoOperable CEAC(s)CPC Channel (with both CEACs inoperable)

Operable (COLSS (COLSSOut Out of of Service)

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 26 REVISION 0

COLR Figure 9.1 (Not Used)

WATERFORD 3 COLR 3/4 2-6G CYCLE 26 REVISION 0

COLR Figure 9.1A (Not Used)

WATERFORD 3 COLR 3/4 2-6H CYCLE 26 REVISION 0

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 26 REVISION 0

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 26 REVISION 0

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, 3.2.4.a.2 for DNBR Margin, 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.b.1 and 3.2.4.b.2 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.a.2 for DNBR Margin)

WATERFORD 3 Page 38 CYCLE 26 REVISION 0

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.a.2 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.a.2, 3.2.4.b.1, and 3.2.4.b.2 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.a.2, 3.2.4.b.1, and 3.2.4.b.2 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.a.2, 3.2.4.b.1, and 3.2.4.b.2 for DNBR Margin and 3.2.7 for ASI.)

WATERFORD 3 Page 39 CYCLE 26 REVISION 0

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.a.2, 3.2.4.b.1, and 3.2.4.b.2 for DNBR Margin.)

WATERFORD 3 Page 40 CYCLE 26 REVISION 0

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