Text

Core Operating Limits Report (Colr), Revision 16
	ML060090320
Person / Time
Site:	Palo Verde
Issue date:	12/27/2005
From:	Bauer S; Arizona Public Service Co
To:	; Document Control Desk, Office of Nuclear Reactor Regulation
References
	102-05392-SAB/TNW/GAM
	Download: ML060090320 (27)
	v • d • e

Scott A. Bauer Technical Specification 5.6.5.d Department Leader Regulatory Affairs Tel: 623/393-5978 Mail Station 7636 Palo Verde Nuclear Fax: 623/393-5442 P.O. Box 52034 Generating Station e-mail: sbauer@apsc.com Phoenix, AZ 85072-2034 102-05392-SAB/TNW/GAM December 27, 2005 ATTN: Document Control Desk U.S. Nuclear Regulatory Commission Washington, DC 20555-0001

Dear Sirs:

Subject:

Palo Verde Nuclear Generating Station (PVNGS)

Unit I Docket No. STN 50-528 Unit I Core Operating Limits Report (COLR), Revision 16 Pursuant to PVNGS Technical Specifications, Section 5.6.5.d, enclosed is Unit 1 Core Operating Limits Report (COLR), Revision 16, which was made effective on December 14, 2005. This COLR revision incorporated editorial changes.

By copy of this letter and the enclosure, this COLR revision is being provided to the NRC Region IV Administrator and the PVNGS Senior Resident Inspector.

This letter does not make any commitments to the NRC. Please contact Thomas N.

Weber at (623) 393-5764 if you have any questions or require additional information.

Sincerely, SABITNW/GAM/ca

Enclosure:

PVNGS Unit 1 Core Operating Limits Report (COLR), Revision 16 cc: 1B. S. Mallett NRC Region IV Regional Administrator M. B. Fields NRC NRR Project Manager G. G. Wamick NRC Senior Resident Inspector for PVNGS A member of the STARS (Strategic Teaming and Resource Sharing) Alliance Callaway

Comanche Peak

Diablo Canyon

Palo Verde

South Texas Project

Wolf Creek

Enclosure PVNGS Unit I Core Operating Limits Report (COLR)

Revision 16

PALO VERDE NUCLEAR GENERATING STATION (PVNGS)

UNIT 1 CORE OPERATING LIMITS REPORT Revision 16 Responsible Engineer Digitally signed b-etfo, Nicole M Resonibe Date: 1121071200'tg (ZC3341 ) t5j8 Reason: I am the For of this document Location: PVNGS L Independent Reviewer Digitally signed by.Delornzi, Mark J (Z01931)

Date Date: 12/07/2005 : id e Reason: I have revi thisdocument Location: PVNGS Responsible Section Leader Digitally signed by-Cqanon, Thomas C Date (Z20485)

Date: 12/07/2006 ISO& 9 Reason: I am apprjg this document Location: PVNGS U Page 1 of 26

PVNGS UNIT 1 CORE OPERATING LIMITS REPORT Revision 16 List of Figures Description Page Figure 3. 1.-1 Shutdown Margin Versus Cold Leg Temperature 11 Reactor Trip Breakers Open Figure 3.1.2-1 Shutdown Margin Versus Cold Leg Temperature 12 Reactor Trip Breakers Closed Figure 3.1.4-1 MTC Acceptable Operation, Modes 1 and 2 13 Figure 3.1.5-1 Core Power Limit After CEA Deviation 14 Figure 3.1.7-1 CEA Insertion Limits Versus Thermal Power 15 (COLSS in Service)

Figure 3.1.7-2 CEA Insertion Limits Versus Thermal Power 16 (COLSS Out of Service)

Figure 3.1.8-1 Part Strength CEA Insertion Limits Versus Thermal Power 17 Figure 3.2.3-1 Azimuthal Power Tilt Versus Thermal Power 18 (COLSS in Service)

Figure 3.2.4-1 COLSS DNBR Operating Limit Allowance for Both 19 CEACs Inoperable In Any Operable CPC Channel Figure 3.2.4-2 DNBR Margin Operating Limit Based on the Core 20 Protection Calculators (COLSS Out of Service, CEAC(s)

Operable)

Figure 3.2.4-3 DNBR Margin Operating Limit Based on the Core 21 Protection Calculators (COLSS Out of Service, Both CEACs Inoperable In Any Operable CPC Channel)

Page 3 of 26

PVNGS UNIT 1 CORE OPERATING LIMITS REPORT Revision 16 List of Tables, Description Page Table 3.3.12-1 Required Monitoring Frequencies for Backup B'oron ...... 22 Dilution Detection as a Function of Operating Charging Pumps and Plant Operational Modes for Keff> 0.98 Table 3.3.12-2 Required Monitoringirequencies'for Backup Boron 23 Dilution Detection as a Function of Operating Charging Pumps and Plant Operational Modes for 0.98 > Keff>'0.97 Table 3.3.12-3 Required Monitoring Frequencies for Backup Boron 24 Dilution Detection as a Functionof Operating Charging Pumps and Plant Operational Modes for 0.97 > Keff> 0.96 Table 3.3.12-4 Required Monitoring Frequencies'for Backup Boron 25 Dilution Detection as a Function of Operating Charging Pumps and Plant Operational Modes for 0.96 > Keff> 0.95, Table 3.3.12-5 Required Monitoring Frequencies for Backup Boron 26 Dilution Detection as a Function of Operating Charging Pumps and Plant Operational Modes for Keff< 0.95 Page 4 of 26

PVNGS UNIT 1'COlE OPERATING LIMTSg REPORT Revision 16 This Report has been prepared in accordance 'with the requirements of Technical Specification 5.6.5. The Core Operating Limits have been developed using the NRC approved methodologies specified in Section 5.6.5 b of the Palo Verde Unit 1 Technical Specifications.

AFFECTED PVNGS TECHNICAL SPECIFICATIONS 3.1.1 Shutdown Margin (.DM) -Reactor Trip,Breakers Open 3.1.2 Shutdown Margin (SDM) - Reactor Trip. Breakers Closed 3.1.4 Moderator Temperature Coefficient (MTC) 3.1.5 Control Element Assembly (CEA) Alignment 3.1.7 Regulating CEA Insertion'Limits 3.1.8 Part Strength CEA Insertion Limits 3.2.1 Linear Heat Rate (LHR) 3.2.3 Azimuthal Power Tilt (Tq) 3.2.4 Departure From Nucleate Boiling Ratio (DNBR);

3.2.5 Axial Shape Index (ASI) 3.3.12 Boron Dilution Alarm System (BDAS) 3.9.1 Boron Concentration Page5 of 26

PVNGS UNIT 1 CORE OPERATING LIMITS REPORT Revision 16 ANALYTICAL METHODS The COLR contains the complete identification for each of the Technical Specification referenced topical reports (i.e., report number, title, revision, date, and any supplements) -that provide the NRC-approved analytical methods used to determine the core operating limits, described in the following documents: -

Title Report No. Rev Date Supplement

1) CE Method for Control Element CENPD- N.A. January 1976 N.A.

Assembly Ejection Analysis 0190-A (13-NO01-1301-01204-1)

2) The ROCS and DIT Computer CENPD- N.A. April 1983 N.A.

Codes for Nuclear Design 266-P-A (13-NOO1-1900-01412-0)

3) Modified Statistical Combination CEN- 01-P-A May 1988 N.A.

of Uncertainties 356(V)-P-A (ARI) (April 1996)

(13-NOO1-1303-01747-2)

4) System 80TM Inlet Flow Distribu- Enclosure N.A. February 1993 1-P tion 1-P to LD-(13-N0O1-1301-01228-0)82-054

5) Calculative Methods for the CE CENPD- N.A. March 2001 4-P-A Large Break LOCA Evaluation 132 Model for the Analysis of CE and W Designed NSSS (13-NOO1-1900-01192-3)

6) Calculative Methods for the CE CENPD- N.A. April 1998 2-P-A Small Break LOCA Evaluation 137-P Model (13-NOO1-1900-01185-3)

7) Fuel Rod Maximum Allowable CEN-372- N.A. May 1990 N.A.

Pressure P-A (13-NOO1-0201-00026-1)

8) Arizona Public Service Company N.A. N.A. September N.A.

PWR Reactor Physics Methodology 1999 Using CASMO-4/SIMULATE-3 (NFM-002)

9) Technical Description Manual for CE-NPD 1 April 2004 N.A.

the CENTS Code 282-P-A (13-NOO1-1303-02349-2 for Vol. 1-4) Vols. 1-4 Page 6-of 26

PVNGS'UNIT 1CORE OPERATING LIMITS REPORT Revision 16 Title Report No. Rev Supplement 10),Implemhentation of ZIRtOt'M- i 'II;CENPD- - 0 'November

'Cladding Material in CE Nuclear ' 404-P-A 2001 Power Fuel Aksembly Designs (13-NOOl-1900-01329-0)

Page 7 of 26

PVNGS UNIT 1 CORE OPERATING LIMITS REPORT Revision 16 The cycle-specific operating limits for the specifications listed are, presented below.

3.1.1 - Shutdown Margin (SDM) - Reactor Trip Breakers Open The Shutdown Margin shall be greater than or equal to that shown in Figure 3.1.1-1.

3.1.2 - Shutdown Margin (SDM) - Reactor Trip Breakers Closed The Shutdown Margin shall be greater than or equal to that shown in Figure 3.1.2-1.

3.1.4 - Moderator Temperature Coefficient (MTC)

The moderator temperature coefficient (MTC) shall be within the area of Acceptable Operation shown in Figure 3.1.4-1.

3.1.5 - Control Element Assembly (CEA) Alignment With one or more full-strength or part-strength CEAs misaligned from any other CEAs in its group by more than 6.6 inches,'the minimum required MODES 1 and 2 core power reduction is specified in Figure 3.1.5-1.

3.1.7 - Regulating'CEA Insertion Limits With COLSS IN SERVICE, regulating CEA groups shall be limited to the withdrawal sequence and to the insertion limits' shown in Figure 3.1.7-12; with COLSS OUT OF SERVICE, regulating CEA groups shall be limited to the withdrawal sequence and to the insertion limits' shown in Figure 3.1.7-2.2 Regulating Groups 1 and 2 CEAs shall be maintained fully withdrawn 3 while in Modes 1 and 2 (except while performing.SR 3.1.5.3).

l A reactor power cutback will cause either.(Case 1) Regulating Group 5 or Regulating Group 4 and 5 to be dropped with no sequential insertion of additional Regulating Groups (Groups 1, 2, 3, and 4) pr,(Case 2) Regulating Group 5 or Regulating Group 4 and 5 to be dropped with all or part of the remaining Regulating Groups (Groups 1, 2, 3, and 4) being sequentially inserted. In either case, the Transient-Insertion Limit and withdrawal sequence specified in the CORE OPERATING LIMITS REPORT can be exceeded for up to 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months .

- - 4.. ; .W -

2 The Separation between Regulating Groups 4 and 5 may be reduced from the 90 inch value specified in Figures 3.1.7-1 and 3.1.7-2 provided that each of the following conditions are satisfied:

a) Regulating Group 4 position is between 60 and 150 inches withdrawn.

b) Regulating Group 5 position is maintained at least 10 inches lower than Regulating Group 4 position.

Page 8 of 26.

PVNGS'UNIT 1 CORE OPERATING LIMITS REPORT Revision 16 lBoth Relatingup 4 and Regulating Group 5 positions are maintained above the Transient Insertion Limit specified in Figure 3.1.7-1 (COLSS In Service)' or Fiwut-3.17ti (COLSS Out of Service).

3 Fully withd7awn' >l47.75" (Pulse Counter indication) and >145.25" (RSPT indiction ., .... .. . .,: .;,

3.1.8 - Part Strength CEA Insertion Limits,;,

The part strength CEA groups shall be limited to the insertion limits shown in Figure 3.1.8-1.

3.2.1 - Linear Heat Rate (LHR!

The linear heat rate limit of 13-1 ki ft shall be maintained.

3.2.3 - Azimithial Power Tilt (Tf)

X i,,i The AZIMUTHAL POWER TILT (Tq) shall be less than or equal to 10% with COLSS IN SERVICE when power is greater than 20% and less than or equal to 50%. Additionally, the AZIMUTHAL POWER TILT (Tq) shall be less than or equal tof5% with COLSS IN SERVICE.when power is greater than 50%. See Figure 3.2.3-1. '

3.2.4 - Departure From Nucleate Boiling Ratio (DNBR)

' Ot-SS IN SERVICE and Both CEACs INOPERABLE in Any OPERABLE CPC Channel Maintain COLSS calculated core power less than or equal to COLSS calculated core power operation limit based on DNBR decreased by the allowanice shown in Fi'gure 3;.2.4-1.'

COLSS '01T 1OF SERVICE and CEAC(s) OPERABLE- Operate within the r'region of acceptable operation of Figure 3.2.4-2 using any operable CPC channel.

COLSS'OU'f OF SERVICE and Both CEACs INOPERABLE in Any O'PERABLE CPC Channel - Operate within the region of acceptable operation of Figure 3.2.4-3 using any operable CPC channel with both CEACs ji' I~NOPElRABLE.i, K.. '

Page 9 of 26 '

PVNGS UNIT 1 CORE OPERATING LIMITS REPORT Revision 16 3.2.5 - Axial Shape Index (ASI)

The core average AXIAL SHAPE INDEX (ASI) shall be maintained within the following limits:

COLSS OPERABLE

-0.18*5ASI !M.18 for power >.50%--

-0.28 <ASI < 0.18 for power >20% and < 50%

COLSS OUT OF SERVICE (CPC)

-0.10 IASI 5D.I0 for power >20%

3.3.12 - Boron Dilution Alarm System (BDAS)

With one or both start-up channel high neutron flux alarms inoperable, the RCS boron concentration shall be determined at the applicable monitoring frequency specified in Tables 3.3.12-1 through 3.3.12-5.

3.9.1 - Boron Concentration The boron concentration of all filled portions of the Reactor Coolant System and the refueling canal shall be maintained at a uniform concentration 2 3000 ppm.

Page 10 of 26

PVNGS UNIT 1 CORE OPERATING LIMITS REPORT Revision 16 FIGURE 3.1.1-1 SHUTDOWN MARGIN VERSUS COLD LEG TEMPERATURE REACTOR TRIP BREAKERS OPEN 7 11Y1Y111V 7 YT'IIIWI 7 Y1111T11'T I 1111171F7 I IIIWYIT I TYI'TT I......... !...---.-.... ........ ......

6

........... . ... ......... . (S D ) ,

.- 1. i ..... . :..

S RUEGION OF A&CEPTABLI 4.....- . ............

-rr*- .... - -

I cI.

b........ H.......

OPERATION

.EGION t MACCI,, p 49 3 ............ --.....

...... 1.1.............

OPERAT1[ON 2

(350.0)

J I. , ' . '

0 0 100 200 300 400 500 600 COLD LEG EMPERAURE (F1)

Page 11 of 26

PVNGS UNIT 1 CORE OPERATING LIMITS REPORT Revision 16 FIGURE 3.1.2-1 SHUTDOWN MARGIN VERSUS COLD LEG TEMPERATURE REACTOR TRIP BREAKERS CLOSED 7

.. -- i(5006.l5)

~. .......

6 REGION OF ACCEPTABLE 5 ... . . '.

at 4 3 (350,4.0) 3

)ZEGION O1t UJNACCEPTABLE 2

.OPERATIO'N

- ------ ----- -.. J..L

..... J..A. .. L... . I.... L.

. ... L .... . ... ... .J.. L......... I .. . ... L . L. L...... ..

.~ L. L....

0 o Ioo. 200 300 400 500 600

COLD LEG TEMPERATURE (F)

Page 12 of 26

PVNGS UNIT 1 CORE OPERATING LIMITS REPORT Revision 16

JIGURE3.1.4-1 MTC ACCEP¶MABLE OPERATION, MODES 1 AND 2 10.5

l l 0.0o : (50%, 00)........

-0.5 . ........ ........... ....... ..... ........ . ...... .. ..,.... ._ .........

4 U -1.0 ........... .... ,-o., -- ,--------t,'........................................... .. ...... .t.. .... ..

-1.5 TC.. .A.- oF KI W..

-. 0 ................................ ....... ..........

ACCEPTABLE OPERA"TION ........

'3 J ,3)', ' ........

-2.' .............. .. -t

1y, P."

'1

',~: -3.0 ............. ........... .. .,....-. , ...x . ....... . .,. ... _. .............. ...

6' I

-35 ...... .......... ............ . .......... ... ....... ......... ...

--- Ift"use I jr, W I

II I .1 I

00%

i (1, 4(

4.0 . ........... :............................ ..... 11--i ............. ;..- ......... g............. ............ ..

I i I! .1 t

I W

Ii i

-11-1.... I

. . I . . . . I . . . . . . . . i . . . . i . . . .

-4.5 --- - - U- I -.-

0 10 20 30 -40 50 60 70 80 90 100 CORE POWER LEVEL

. . ~ , .

(%OF. RATED THERMAL

.I I .

POWER) .

End of Cycle Limit I~

I .Begiming of Cycle Limit museum TECH SPEC 3.1.4 Maximum Upper Limit fl....se, Page 13 of 26

PVNGS UNIT 1 CORE OPERATING LIMITS REPORT Revision 16 FIGURE 3.1.5-1 CORE POWER LIMT AFTER CEA DEVIATION*

30 25 ,~ . . MIN 2 z .... ,,.... .. . .... ,, .......... ...... . .......... ... ...... .... ........ . ...........

20 0

'5 10 5

0 0 10 20 30 40 . ,

di 60 TIME AFIER DEVIATION. MINUTES.

WHEN CORE POWER IS REDUCED TO 55% OF RATED THERMAL POWER PER THIS LIMIT CURVE, FLURTHER REDUCTION IS NOT REQUIRED.

Page 14 of 26

PVNGS UNIT 1 CORE OPERATING LIMITS REPORT Revision 16

-PIGURE-3.1.7-1 CEA INSERTION LIITrS VERSUS THERMAL POWER (COLSS IN SERVICE) 1.0 0.9 OR APPLICABIILMT FOLLOWING:

0.8 O 0.7

. .. .. ,RP 5PO$ = (172.5'x FRAC. PWR) -.64.5 0.6 -----------

U 0 0.5 inI 0

E .4 0.3

0.2 .......... .................

0.1

............ ... ........ L.... L............ ...... ........

rAnnI GROUP S GROUP 3 GROUP 1 FW* 12090 O:60 30 0 FW* 120 90 ;60 30 O W* 1290 60 30 0 3ROUP 4 GROUP 2 CE JoCE 3O k 4oA4 :l'S

-CEA POSMTONaNOM{S WMIDRAWN)

Fully Withdrawn (FW) is defined as > 147.75" (Pulse Counter) and > 145.25" (RSPT).

Page 15 of 26

PVNGS UNIT 1 CORE OPERATING LIMITS REPORT Revision 16

FIGURE 3.1.7-2 CEA INSERTION LIMITS VERSUS THERMAL POWER (COLSS OUT OF SERVICE)

. n I.U I U I-

. I i1 '.

0.9 i

.. . ........ ..... . ....... ...... . ....... ..... . . ...... . .......... ...... .............. . ...... i.......4....... ---

0.8 iSECION 3...

FORA PPIACABII rY FOLLOwiNG 0.7 .... .REA CTOR Cur 0.6 ORP4

1i 2c 0.5

,:I\ : GRP S FRAC. *WR-80..,I.18 is

1M 6

0rt 0A 0.3 11 . . .- . e- ....... ..

0.2 0.1

........... ..... I I ......... ..................

0.0 GROUPSROUP 3 -R. GROUP I 1 I l~~ ~I ~ * . i I

L I I ."

I I

t

-. I I I LRt 1

1 1I" FW 120 90 60 30 0 FW* 120 90 60 30 0 FW* 120 90 60 30 0 GROUP 4 GROUP 2

- *Ft ~I P, I I I -

CEA POSMON (INCHES WuIHDRAWN)

Fully Withdrawn (FW) is defined as > 147.75" (Pulse Counter) and > 145.25" (RSPT).

Page 16 of 26

PVNGS UNIT 1 CORE OPERATING LIMITS REPORT Revision 16 FIGURE3.1.8-1 PART STRENGTH CEA:INSERTION LIMITS VERSUS THERMAL POWER 0.0-

,,,. ... ..... -, . .......... . ..- .... 7--,,---.-----

10.0 20.0 ..;. .. .. . ... .. ....... . .... ...... ....... .... ...... . .. . .K.....

30.0

,___,..... v...... ......... _. _ .__... _..... ............ ............. As I 40.0

.~ . . .. -

,4 ,- .. . ,

50.0

.. . ...... A. k.._.i_........ ........ i .... ..

_.*.'... ...... .. .i......

+ ..... . .. ** _. ------- - ------

360.0 . , . , , . .....

70.0

_......0. ... . T , _.. . .. A. .. .. .z...._. +..... ... ...... .._.0 ,T_ . _.*..... _. . v. ......

80.0 I-c 90.0

. OPERTO PTABLTALEL V 110.0

~~~~ ..........-

- ------s ---.-2 l~~~~~~~ .1l::

. ."1:

.I. . . . .* ~ w , _ " "g 9 * " 1 "

120.0 130.0 ....... ....... ..... - -................

T-,8 2b- i; -- ---------

140.0 . tPERKION J {*IikE t 150.0

.0 09 0.8 0.7 0.6 0-5 (104 03 0.2 0.1 0.0 FRACTION OF RATED WERMAL POWER I !4 4' . j; i Page 17 of 26

PVNGS UNIT 1 CORE OPERATING LIMITS REPORT Revision 16 FIGURE 3.2.3-1 AIMUTHAL POWER TILT VERSUS THERMAL POWER (COLSS IN SERVICE) 20.0 F-

" X! .-

~,-t

-- I . I 15.0 .REG [ON O F................ ........

I UNA! ."CEPTABLI3

. OPE] ZATION a-10.0 ......... . .. ....... ........ ........

U F-5.0 1 LCETAL REGION OF, OPERT'N EA-

. A I I i I.. - - ..

.... i ..... I....

-0.0 *

II*--- .

20 .0 30.0 40.0 50.0 60.0 70.0 80.0 900 100.0 CORE POWER LEVEL

-.(% OF RATED THERMAL POWER)

, Page 18 of 26

PVNGS' UNIT 1 CORE OPERATING LIMITS REPORT Revision 16

'I-URE32.4-1

- 'LSS DNBR OPERATING LIMT ALLOWANCE FOR BOTH CEACs INOPERABLE IN ANY OPERABLE CPC CHANNEL

'25 .--.

20 ,; i_..(SQ 0 S',",;

0f Rt. ......

001 _...

SE.,10 ... .

0oA o 25 50 -75 100

- - PORE POWER LEVEL

' ae(% OF RATED THERMAL POWER)

Page 19 of 26

PVNGS UNIT 1 CORE OPERATING LIMITS REPORT Revision 16 FIGURE 32.4-2

- DNBR MARGIN OPERATING LIMIT BASED ON THE CORE PROTECTION CALCULATORS (COLSS OUT OF SERVICE, CEAC(s) OPERABLE) 2.5 ACCEPTABLE OPERATION ANY POWERLEVEL AT LEAST 1 CEAC OPERABLE iN

. . EACH OPERABLE CPC CIANNEL 24

. ( >6.238) (0.1,238):

2.3 ,i:................... .. . .......... ........... . .. -----

(-*1.228) i 2.2 _-----. - -------

r----- - -........... .a..... ...... ..---.. - ----

--i-----*-

. ,ACCEP!TABLE OERAIN'

. : POWER AT OR ABOVE 90%:

. ^, AT LEAST I CEAC OPERALBLE IN, 2.1 ............................... ...... ,a-P~sE~t------.-----

...... . ., , : , , ^i 2.0 -'-'- ----' 1-'-'-'--------------" '

. l * ~~j00*0r * *

.1.1@3 U*NACOEPT~LE 1.9 -*... >}O.......... .......... ......... . v .......

1.8-

-0.20 -0.15 -0.10 -0.05 0.00 0.05 0.10 0.15 0.20

.CORE.AVERAGE AS1 Page 20 of 26 i

PVNGS UNIT 1 CORE OPERATING LIMITS REPORT Revision 16 F.

IGURE3.2.4-3 DNBR MARGIN OPERATING LIMIT BASED ON THE CORE PROTECTION CALCULATORS (COLSS OUT OF SERVICE, BOTH CEACs INOPERABLE IN ANY OPERABLE CPC CHANNEL) 3.6 I ACCEItABLIbOE"TION ANY POWERILEVEL BOTH iCEACs INOPERABLE 3.5 CIHANY)PEBLE CPCL CHANNEL .

3A 04 0

9 3.3 a

4 2 I 3.2 3.1 3.0 La.

' -0.20 .0.15 -0.10 - -0.0y 0.00 0.05 0.10 0.15 0.-20 X CORE AVERAGE AST Page 21 of 26

PVNGS UNIT 1 CORE OPERATING LIMITS REPORT Revision 16 Table 3.3.12-1 REQUIRED MONITORING FREQIJENCIES FOR BACKUP BORON DILUTION DETECTION AS A FUNCTION OF OPERATING CHARGING PUMPS AND PJAANT QPERATIONAL MODES FOR Keff > 01.98 OPERATIONAL Number of Operating Charging Pumps MODE 0 1 2 3 3 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months 0.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months ONA ONA 4 not on SCS 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months 0.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months ONA ONA 5 not on SCS 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months . 0.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months ONA ONA 4 & 5 on SCS ONA ONA ONA . ONA Notes: SCS = Shutdown CoolingSystem i.

ONA = Operation Not Allowed, Page 22 of 26

I PVNGS UNIT 1 CORE OPERATING LIMITS REPORT Revision 16 Table 3.3.12-2 REQUIAMD MONITORINO FREQUENCIES FOR BACKUP BORON DILUTION DETECTION AS A FUNCTION OF OPERATING CHARGING PUMPS AND PLANT OPERATIONAL MODES FOR 0.98 Ž Keff > 0.97 OPERATIONAL " ' Nmber of Operating Charging Pumps.

MODE 0 1 2 3 3 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months 0.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months ONA 4 not on SCS 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months 1.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months 0.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months ONA 5 not on SCS 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months 1.5 hour5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months s: 0.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months ONA 4 & 5 on SCS 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months 0.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months ONA ONA, Notes: SCS = Shutdown Cooling System ONA = Operation Not Allowed Page 23 of 26

PVNGS UNIT 1 CORE OPERATING LIMITS REPORT Revision 16 Table,3.3.12-3 REQUIRED MONITORING FREQUENCIES.FOR BACKUP BORON DILUTION DETECTION AS A FUNCTION OF OPERATING CHARGING PUMPS AND PLYT OPERATIONAL MODES FOR 0.97 2 Keff> 0.96 OPERATIONAL Number of Operating Charging Pumps MODE 0 1 2 3 3,; 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months , 2.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months ONA 4 not on SCS 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months ;2.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months 0.5. hours 5 not on SCS 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months 2.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months -0.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months 4 & 5 on SCS 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months I hour ONA ONA.

Notes: SCS = Shutdown Cooling System ONA = Operation Not Allowed;

.Page 24 of 26

PVNGS UNIT 1 CORE OPERATING LIASM REPORT Revision 16

-Table'3.3:12-4 REQUID MONITORING FREQUXENCIES FOR BACKUP BORON DILUTION DETECTION AS A FUNCTION OF OPERATING CHARGING PUMPS ANDPLANT OPERATIONAL MODES FOR 0.96 2 Keff > 0.95 OPERATION A"'-' ' ' Number of Operating Charging Pumps MODE 0 1 2 3 3 "2houhou rs ours ' hour 0.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months 4not onSCS 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months 3.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months 1.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months 0.75 hours8.680556e-4 days 0.0208 hours 1.240079e-4 weeks 2.85375e-5 months 5 not on SCS 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months 3.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months 1.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months 0.75 hours8.680556e-4 days 0.0208 hours 1.240079e-4 weeks 2.85375e-5 months 4 & 5 on SCS 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months 1.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months 0.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months ONA Notes: SCS Shutdown Cooling System ONA = Operation Not Allowed Page 25 of 26

PVNGS UNIT 1 CORE OPERATING LIMITS REPORT Revision 16 Table 3.3.12-5 REQUIRED MONITORING FREQUENCIES FOR BACKUP BORON DILUTION DETECTION AS A FUNCTION OF OPERATING CHARGING PUMPS AND PLANT OPERATIONAL MODES FOR Keff <0.95 OPERATIONAL Number of Operating Charging Pumps MODE 0 1 2 3 3 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months 4 hours4.62963e-5 days 0.00111 hours 6.613757e-6 weeks 1.522e-6 months 1.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months 4 not on SCS 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months 4.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months 5 not on SCS 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months 4.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months 4 & 5 on SCS 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months 0.75 hours8.680556e-4 days 0.0208 hours 1.240079e-4 weeks 2.85375e-5 months ONA 6 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months 1.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months ONA ONA Notes: SCS = Shutdown Cooling System ONA = Operation Not Allowed Page 26 of 26

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