ML12283A344

Technical Update Instructions Specifications

ML12283A344
Person / Time
Site:	Duane Arnold
Issue date:	10/02/2012
From:	Byrne T Florida Power & Light Co
To:	Office of Nuclear Reactor Regulation
References
Download: ML12283A344 (15)

Text

October 2, 2012 TO: TECHNICAL SPECIFICATION DISTRIBUTION Attached is Amendment No. 283 to the Duane Arnold Energy Center Technical Specifications.

Amendment No. 283 {TSCR No. 135} is a "one time only" change to the Operability requirements for Core Spray in MODES 4 & 5 to support the upcoming Torus Recoat Project during RF023.

Please update your copy of the Technical Specifications as indicated in the attached Update Instructions.

THIS AMENDMENT BECOMEs EFFECTIVE 101512012.

IMPORTANT:

Holders of Technical Specification Copies are required to sign and date the Notice of Receipt Form below, detach it at the dotted line and:

RETURN IT TO THE ADDRESSEE ALONG WITH THE SHEETS REMOVED FROM THE TECHNICAL SPECIFICATIONS.

Tom Byrne Regulatory Affairs Manager (Acting)

Copy No: 14 NRC REGION III Issued To: REGIONAL LIBRARY NOTICE OF RECEIPT OF TECHNICAL SPECIFICATION REVISION To:

Pat Vandersee, Licensing Department Duane Arnold Energy Center, 3277 DAEC Road, Palo, IA 52324 This acknowledges receipt of Amendment #283to the Duane Arnold Energy Center Technical Specifications.

Signature:

DATE Signature:

DATE Dot a L t1i I- -

October 2, 2012 Page 1 of 1 DUANE ARNOLD ENERGY CENTER TECHNICAL UPDATE INSTRUCTIONS SPECIFICATIONS REMOVE INSERT Technical Specifications:

Op. License Page No. 3 List of Effective Pages 1-3 Pg 3.3-41 TS BASES VOL 1:

List of Effective Pages 1-5 Pg B 3.3-110 Technical Specifications:

Op. License Page No. 3 List of Effective Pages 1-3 Pg 3.3-41 TS BASES VOL 1:

List of Effective Pg B 3.3-110 TS BASES VOL 2:

Pg B 3.5-22 Pg B 3.5-25 Pages 1-5 TS BASES VOL 2:

Pg B 3.5-22 Pg B 3.5-25 C. This renewed operating license shall be deemed to contain and is subject to the conditions specified in the following Commission regulations in 10 CFR Chapter I; Part 20, Section 30.34 of Part 30, Section 40.41 of Part 40, Sections 50.54 and 50.59 of Part 50, and Section 70.32 of Part 70; is subject to all applicable provisions of the Act and to the rules, regulations, and orders of the Commission now or hereafter in effect; and is subject to the additional conditions specified or incorporated below:

(1) Maximum Power Level NextEra Energy Duane Arnold, LLC is authorized to operate the Duane Arnold Energy Center at steady state reactor core power levels not in excess of 1912 megawatts (thermal).

(2) Technical Specifications The Technical Specifications contained in Appendix A, as revised through Amendment No. 283, are hereby incorporated in the license. NextEra Energy Duane Arnold, LLC shall operate the facility in accordance with the Technical Specifications.

(a) For Surveillance Requirements (SRs) whose acceptance criteria are modified, either directly or indirectly, by the increase in authorized maximum power level in 2.C.(1) above, in accordance with Amendment No. 243 to Facility Operating License DPR-49, those SRs are not required to be performed until their next scheduled performance, which is due at the end of the first surveillance interval that begins on the date the Surveillance was last performed prior to implementation of Amendment No. 243.

(b) Deleted.

(3) Fire Protection NextEra Energy Duane Arnold, LLC shall implement and maintain in effect all provisions of the approved fire protection program as described in the Final Safety Analysis Report for the Duane Arnold Energy Center and as approved in the SER dated June 1, 1978, and Supplement dated February 10, 1981, subject to the following provision:

NextEra Energy Duane Arnold, LLC may make changes to the approved fire protection program without prior approval of the Commission only if those changes would not adversely affect the ability to achieve and maintain safe shutdown in the event of a fire.

(4) The licensee is authorized to operate the Duane Arnold Energy Center following installation of modified safe-ends on the eight primary recirculation system inlet lines which are described in the licensee letter dated July 31, 1978, and supplemented by letter dated December 8, 1978.

(5) Physical Protection NextEra Energy Duane Arnold, LLC shall fully implement and maintain in effect all provisions of the Commission-approved physical security, training and qualification, Renewed License No. DPR-49 Amendment 283

Page 1 of 3 LIST OF EFFECTIVE PAGES Appendix A to DPR-49 Technical Specifications Revision Date 10/0512 Pane Date Rev.

Pane Date Rev.

Pane Date Rev.

1.1-1 1.1-2 1.1-3 1.1-4 1.1-5 1.1-6 1.1-7 1.1-8 1.2-1 1.2-2 1.2-3 1.3-1 1.3-2 1.3-3 1.3-4 1.3-5 1.3-6 1.3-7 1.3-8 1.3-9 1.3-10 1.3-11 1.3-12 1.3-13 1.4-1 1.4-2 1.4-3 1.4-4 1.4-5 1.4-6 1.4-7 1.4-8 2.0-1 3.0-1 3.0-2 3.0-3 3.0-3a 3.0-4 3.0-5 3.1-1 3.1-2 3.1-3 3.1-4 3.1-5 3.1-6 3.1-7 3.1-8 3.1-9 10/30/00 10/30/00 08/21/01 10/30/00 11/07/01.

04/27/12 08/01/98 08/01/98 08/01/98 08/01/98 08/01/98 08/01/98 08/01/98 08/01/98 08/01/98 08/01/98 08/01/98 08/01/98 08/01/98 08/01/98 08/01/98 08/01/98 08/01/98 08/01/98 07/11/05 07/11/05 07/11/05 07/11/05 11/20/08 07/11/05 07/11/05 07/11/05 11/07/01 04/29/11 04/18/05 04/29/11 04/29/11 07/30/02 04/18/05 08/01/98 08/01/98 08/01/98 08/01/98 08/01/98 08/01/98 08/01/98 11/20/08 08/01/98 234 234 240 234 243 280 223 223 223 223 223 223 223 223 223 223 223 223 223 223 223 223 223 223 258 258 258 258 271 258 258 258 243 277 255 277 277 246 255 223 223 223 223 223 223 223 271 223 3.1-10 3.1-11 3.1-12 3.1-13 3.1-14 3.1-15 3.1-16 3.1-17 3.1-18 3.1-19 3.1-20 3.1-21 3.1-22 3.1-23 3.1-24 3.1-25 3.1-26 3.2-1 3.2-2 3.2-3 3.3-1 3.3-2 3.3-3 3.3-4 3.3-5 3.3-6 3.3-7 3.3-8 3.3-9 3.3-10 3.3-11 3.3-12 3.3-13 3.3-14 3.3-15 3.3-16 3.3-17 3.3-18 3.3-19 3.3-20 3.3-21 3.3-22 3.3-23 3.3-24 3.3-25 3.3-26 3.3-27 3.3-28 04/27/12 280 11/20/08 271 08/01/98 223 08/01/98 223 11/20/08 271 08/01/98 223 08/01/98 223 04/27/12 280 08/01/98 223 04/27/12 280 08/01/98 223 04/27/12 280 04/27/12 280 04/11/01 236 08/01/98 223 09/20/05 259 04/27/12 280 04/27/12 280 04/27/12 280 08/01/98 223 08/01/98 223 11/07/01 243 04/27/12 280 04/27/12 280 04/27/12 280 04/27/12 280 11/07/01 243 08/01/98 223 11/07/01 243 08/01/98 223 08/01/98 223 04/27/12 280 04/27/12 280 08/01/98 223 08/01/98 223 08/01/98 223 04/27/12 280 04/27/12 280 04/27/12 280 04/18/08 268 04/18/05 255 08/01/98 223 04/27/12 280 07/06/04 254 04/27/12 280 04/27/12 280 10/01/09 243 04/27/12 280 3.3-29 3.3-30 3.3-31 3.3-32 3.3-33 3.3-34 3.3-35 3.3-36 3.3-37 3.3-38 3.3-39 3.3-40 3.3-41 3.3-42 3.3-43 3.3-44 3.3-45 3.3-46 3.3-47 3.3-48 3.3-49 3.3-50 3.3-51 3.3-52 3.3-53 3.3-54 3.3-55 3.3-56 3.3-57 3.3-58 3.3-59 3.3-60 3.3-61 3.3-62 3.3-63 3.3-64 3.3-65 3.3-66 3.3-67 3.3-68 3.3-69 3.3-70 3.3-71 3.3-72 3.3-73 3.3-74 3.3-75 3.3-76 04/27/12 280 08/01/98 223 04/27/12 280 08/01/98 223 08/01/98 223 08/01/98 223 08/01/98 223 08/01/98 223 09/30/09 243 08/01/98 223 04/27/12 280 04/27/12 280 10/05/12 283 08/01/98 223 08/01/98 223 03/27/02 245 03/27/02 245 08/01/98 223 08/01/98 223 04/27/12 280 08/01/98 223 08/01/98 223 08/01/98 223 06/29/00 231 08/01/98 223 08/01/98 223 04/27/12 280 04/27/12 280 02/09/07 261 08/01/98 223 06/29/00 231 06/29/00 231 08/01/98 223 08/01/98 223 08/01/98 223 04/27/12 280 05/16/01 237 04/18/05 255 04/27/12 280 04/27/12 280 08/01/98 223 08/01/98 223 04/27/12 280 08/01/98 223 08/01/98 223 04/27/12 280 06/12/09 273 08/01/98 223

Page 2 of 3 LIST OF EFFECTIVE PAGES Appendix A to DPR-49 Technical Specifications Revision Date 10/0512 Page Date Rev Page Date Rev_

Page Date Pe.v Pape Date Rev 3.3-77 3.4-1 3.4-2 3.4-3 3.4-4 3.4-5 3.4-6 3.4-7 3.4-8 3.4-9 3.4-10 3.4-11 3.4-12 3.4-13 3.4-14 3.4-15 3.4-16 3.4-17 3.4-18 3.4-19 3.4-20 3.4-21 3.4-22 3.4-23 3.4-24 3.4-25 3.5-1 3.5-2 3.5-3 3.5-4 3.5-5 3.5-6 3.5-7 3.5-8 3.5-9 3.5-10 3.5-11 3.5-12 3.5-13 3.5-14 3.6-1 3.6-2 3.6-3 3.6-4 3.6-5 3.6-6 3.6-7 3.6-8 04/27/12 08/01/98 08/01/98 04/27/12 08/01/98 04/27/12 08/01/98 09/26/12 08/01/98 04/27/12 04/18/05 04/18/05 04/27/12 04/16/10 04/27/12 04/18/05 08/01/98 04/27/12 10/30/00 04/27/12 08/01/98 04/27/12 08/01/98 04/27/12 08/31/03 04/27/12 04/18/05 08/01/98 08/01/98 04/27/12 04/27/12 04/27/12 09/26/12 08/01/98 04/27/12 04/27/12 04/27/12 04/18/05 04/27/12 04/27/12 08/01/98 04/27/12 08/01/98 08/01/98 08/01/98 08/01/98 04/27/12 08/01/98 280 223 223 280 223 280 223 282 223 280 255 255 280 255 280 255 223 280 234 280 223 280 223 280 253 280 255 223 223 280 280 280 282 223 280 280 280 255 280 280 223 280 223 223 223 223 280 223 3.6-9 3.6-10 3.6-11 3.6-12 3.6-13 3.6-14 3.6-1.5 3.6-16 3.6-17 3.6-18 3.6-19 3.6-20 3.6-21 3.6-22 3.6-23 3.6-24 3.6-25 3.6-26 3.6-27 3.6-28 3.6-29 3.6-30 3.6-31 3.6-32 3.6-33 3.6-34 3.6-35 3.6-36 3.6-37 3.6-38 3.6-39 3.6-40 3.6-41 3.6-42 3.6-43 3.7-1 3.7-2 3.7-3 3.7-4 3.7-5 3.7-6 3.7-7 3.7-8 3.7-9 3.7-10 3.7-11 3.7-12 3.7-13 10/30/00 10/30/00 10/30/00 10/30/00 04/27/12 04/27/12 4/16/10 04/27/12 08/01/98 09/26/12 08/01/98 04/27/12 04/27/12 08/01/98 04/27/12 08/01/98 08/01/98 04/27/12 04/27/12 08/01/98 04/27/12 08/01/98 04/27/12 07/27/07 07/27/07 04/27/12 05/16/01 04/27/12 05/16/01 10/30/00 05/16/01 04/27/12 05/16/01 05/16/01 04/27/12 04/18/05 04/27/12 08/01/98 04/27/12 08/01/98 04/27/12 12/18/08 12/18/08 04/27/12 04/27/12 01/18/08 01/18/08 04/27/12 234 234 234 234 280 280 276 280 223 282 223 280 280 223 280 223 223 280 280 223 280 223 280 265 265 280 237 280 237 234 237 280 237 237 280 255 280 223 280 223 280 269 269 280 280 267 267 280 3.7-14 3.7-15 3.7-16 3.7-17

.3.7-18 3.7-19 3.7-20 3.8-1 3.8-2 3.8-3 3.8-4 3.8-5 3.8-6 3.8-7 3.8-8 3.8-9 3.8-10 3.8-11 3.8-12 3.8-13 3.8-14 3.8-15 3.8-16 3.8-17 3.8-18 3.8-19 3.8-20 3.8-21 3.8-22 3.8-23 3.8-24 3.8-25 3.8-26 3.8-27 3.8-28 3.8-29 3.8-30 3.8-31 3.9-1 3.9-2 3.9-3 3.9-4 3.9-5 3.9-6 3.9-7 3.9-8 3.9-9 3.9-10 08/01/98 04/27/12 11/07/01 04/27/12 04/27/12 07/02/99 04/27/12 04/18/05 08/01/98 09/26/08 09/26/08 04/27/12 04/27/12 04/27/12 04/27/12 04/27/12 04/27/12 08/01/98 08/01/98 10/30/00 08/01/98 08/01/98 04/27/12 11/22/02 04/27/12 04/27/12 04/27/12 08/01/98 08/01/98 10/30/00 10/30/00 04/27/12 08/01/98 08/01/98 08/01/98 04/27/12 08/01/98 04/27/12 08/01/98 04/27/12 04/27/12 04/27/12 04/27/12 08/01/98 08/01/98 04/27/12 04/27/12 10/30/00 223 280 243 280 280 227 280 255 223 270 270 280 280 280 280 280 280 223 223 234 223 223 280 247 280 280 280 223 223 234 234 280 223 223 223 280

223, 280 223 280 280 280 280 223 223 280 280 234

Page 3 of 3 LIST OF EFFECTIVE PAGES Appendix A to DPR-49 Technical Specifications Revision Date 10/0512 Page Date Rev.

Page Date Rev.

Page Date Rev.

3.9-11 08/01/98 3.9-12 04/27/12 3.9-13 10/30/00 3.9-14 08/01/98 3.9-15 04/27/12 3.10-1 07/27/07 3.10-2 08/01/98 3.10-3 08/01/98 3.10-4 08/01/98 3.10-5 04/27/12 3.10-6 08/01/98 3.10-7 08/01/98 3.10-8 04/27/12 3.10-9 08/01/98 3.10-10 08/01/98 3.10-11 04/27/12 3.10-12 04/27/12 3.10-13 08/01/98 3.10-14 04/27/12 3.10-15 04/27/12 3.10-16 08/01/98 3.10-17 04/27/12 3.10-18 08/01/98 3.10-19 08/01/98 3.10-20 08/01/98 3.10-21 08/01/98 3.10-22 04/27/12 3.10-23 04/27/12 4.0-1 08/01/98 4.0-2 07/16/99 4.0-3 08/01/98 5.0-1 08/01/98 5.0-2 08/01/98 5.0-3 10/01/09 5.0-4 11/22/02 5.0-5 08/01/98 5.0-6 08/01/98 5.0-7 10/30/00 5.0-8 07/11/05 5.0-9 08/01/98 5.0-10 11/22/02 5.0-11 10/30/00 5.0-12 08/01/98 5.0-13 01/26/01 5.0-14 08/01/98 5.0-15 10/30/00 5.0-16 10/12/01 5.0-17 4/16/10 223 280 234 223 280 264 223 223 223 280 223 223 280 223 223 280 280 223 280 280 223 280 223 223 223 223 280 280 223 226 223 223 223 274 248 223 223 234 258 223 248 234 223 235 223 234 241 276 5.0-18 4/16/10 276 5.0-18a 04/27/12 280 5.0-18b 04/27/12 280 5.0-19 03/11/05 256 5.0-20 03/11/05 256 5.0-21 08/01/98 223 5.0-22 11/22/02 248 5.0-23 11/22/02 248 5.0-24 11/22/02 248 5.0-25 11/22/02 248

ECCS Instrumentation 3.3.5.1 Table 3.3.5.1-1 (page 1 of 5)

Emergency Core Cooling System Instrumentation APPLICABLE CONDITIONS MODES REQUIRED REFERENCED OR OTHER CHANNELS FROM SPECIFIED PER REQUIRED SURVEILLANCE ALLOWABLE FUNCTION CONDITIONS FUNCTION ACTION A.1 REQUIREMENTS VALUE

1. Core Spray System

a.

Reactor Vessel Water 1,2,3, 4(b)

B SR 3.3.5.1.1

> 38.3 inches Level -

Low Low Low (a)

(a)

SR 3.3.5.1.3 4

5 SR 3.3.5.1.8 SR 3.3.5.1.9

b. Drywell Pressure -

1,2,3 4(b)

B SR 3.3.5.1.3

< 2.19 psig High SR 3.3.5.1.8 SR 3.3.5.1.9

c. Reactor Steam Dome 1,2,3 4

C SR 3.3.5.1.3

> 363.3 psig Pressure -

Low SR 3.3.5.1.8 and < 485.1 psig (Injection Permissive)

SR 3.3.5.1.9 4 (a) 5(a) 4 B

SR 3.3.5.1.3

> 363.3 psig SR 3.3.5.1.8 SR 3.3.5.1.9 and < 485.1 psig

d. Core Spray Pump 1,2,3, 1 per E

SR 3.3.5.1.3

>256.6 gpm Discharge Flow - Low (a)

(a)

(e)

SR 3.3.5.1.8 and (Bypass) 4 5

pump SR 3.3.5.1.9

_< 2382.1 gpm

e. Core Spray Pump Start 1,2,3, 1 per C

SR 3.3.5.1.8

> 2.6 seconds Time Delay Relay 4 (a) 5(a) pump SR 3.3.5.1.9 and < 6.8 seconds

f. 4.16 kV Emergency Bus 1,2,3, 1 per F

SR 3.3.5.1.5

< 3500 V Sequential Loading 4 (a) 5(a) pump SR 3.3.5.1.6 Relay SR 3.3.5,1.9

2. Low Pressure Coolant Injection (LPCI) System

a. Reactor Vessel Water 1,2,3, 4

B SR 3.3.5.1.1

> 38.3 inches Level-Low Low Low (a)

(a)

SR 3.3.5.1.3 411 51 SR 3.3.5.1.8 SR 3.3.5.1.9

b. Drywell Pressure -

1,2,3 4

B SR 3.3.5.1.3

< 2.19 psig High SR 3.3.5.1.8 SR 3.3.5.1.9 (continued)

(a)

(b)

(e)

When associated ECCS subsystem(s) are required to be OPERABLE per LCO 3.5.2, ECCS-Shutdown.

Al;o required to initiate the associated Diesel Generator (DG).

During Refuel Outage (RFO) 23, the MODE 4 and 5 requirement for Function 1.d is revised to be zero (0) required channels per pump.

DAEC 3.3-41 Amendment 283

Page 1 of 5 LIST OF EFFECTIVE PAGES Appendix A to DPR-49 Technical Specifications Bases Revision Date 09/26/12 Page Date Rev.

Page Date Rev.

Page Date Rev.

B 2.0-1 08/01/98 223 B 3.1-18 08/01/98 223 B 3.3-7 11/07/01 044 B 2.0-2 08/01/98 223 B 3.1-19 08/01/98 223 B 3.3-8 11/07/01 044 B 2.0-3 11/07/01 044 B 3.1-20 04/27/12 120 B 3.3-9 08/01/98 223 B 2.0-4 08/01/98 223 B 3.1-21 04/27/12 120 B 3.3-10 05/31/02 057 B 2.0-5 04/09/04 044A B 3.1-22 11/20/08 098 B 3.3-11 08/01/98 223 B 2.0-6 04/09/04 044A B 3.1-23 08/01/98 223 B 3.3-12 08/01/98 223 B 2.0-7 08/01/98 223 B 3.1-24 08/01/98 223 B 3.3-13 02/23/09 102 B 2.0-8 04/09/04 044A B 3.1-25 11/20/08 098 B 3.3-14 04/18/08 100 B 2.0-9 04/09/04 044A B 3.1-26 08/01/98 223 B 3.3-15 08/01/98 223 B 3.0-I 04/29/11 122 B 3.1-27 04/09/04 044A.

B 3.3-16 08/01/98 223 B 3.0-2 10/30/00 026A B 3.1-28 08/01/98 223 B 3.3-17 08/01/98 223 B 3.0-3 08/01/98 223 B 3.1-29 08/01/98 223 B 3.3-18 08/25/10 123 B 3.0-4 08/01/98 223 B 3.1-30 08/01/98 223 B 3.3-19 11/07/01 044 B 3.0-5 04/18/05 064 B 3.1-31 08/01/98 223 B 3.3-20 08/25/10 123 B 3.0-6 04/18/05 064 B 3.1-32 04/27/12 120 B 3.3-21 08/01/98 223 B 3.0-7 04/18/05 064 B 3.1-33 04/09/04 044A B 3.3-22 08/01/98 223 B 3.0-8 04/18/05 064 B 3.1-34 08/01/98 223 B 3.3-23 08/01/98 223 B 3.0-9 04/18/05 064 B 3.1-35 04/18/08 093 B 3.3-24 08/01/98 223 B 3.0-10 04/18/05 064 B 3.1-36 03/25/05 070 B 3.3-25 08/01/98 223 B 3.0-11 04/18/05 064 B 3.1-37 03/25/05 070 B 3.3-26 04/27/12 120 B 3.0-12 04/18/05 029 B 3.1-38 04/27/12 120 B 3.3-27 04/27/12 120 B 3.0-13 06/12/07 079 B 3.1-39 04/11/01 236 B 3.3-28 04/27/12 120 B 3.0-13A 04/29/11 122 B 3.1-40 08/01/98 223 B 3.3-29 04/27/12 120 B 3.0-13B 04/29/11 122 B 3.1-41 08/01/98 223 B 3.3-30 04/27/12 120 B3.0-13C 04/29/11 122 B3.1-42 04/27/12 120 B3.3-31 04/12/12 120 B 3.0-13D 04/29/11 122 B 3.1-43 04/27/12 120 B 3.3-32 04/27/12 120 B 3.0-14 07/11/05 029 B 3.1-44 04/27/12 120 B 3.3-33 04/27/12 120 B 3.0-15 07/11/05 029 B 3.1-45 04/09/04 044A B 3.3-34 04/27/12 120 B 3.0-16 07/11/05 029 B 3.1-46 09/20/05 044A B 3.3-35 04/27/12 120 B 3.0-17 07/11/05 029 B 3.1-47 09/20/05 223 B 3.3-36 04/09/04 044A B 3.0-18 07/11/05 029 B 3.1-48 04/27/12 120 B 3.3-37 08/01/98 223 B 3.0-19 07/11/05 029 B 3.1-49 04/27/12 120 B 3.3-38 08/01/98 223 B 3.1-1 08/01/98 223 B 3.2-1 04/09/04 044A B 3.3-39 08/01/98 223 B 3.1-2 08/01/98 223 B 3.2-2 02/23/09 115 B 3.3-40 08/01/98 223 B 3.1-3 08/01/98 223 B 3.2-3 04/09/04 044A B 3.3-41 08/01/98 223 B 3.1-4 08/01/98 223 B 3.2-4 04/27/12 120 B 3.3-42 04/27/12 120 B 3.1-5 08/01/98 223 B 3.2-5 04/09/04 044A B 3.3-43 04/27/12 120 B 3.1-6 08/01/98 223 B 3.2-6 04/09/04 044A B 3.3-44 04/27/12 120 B 3.1-7 04/09/04 044A B 3.2-7 04/09/04 044A B 3.3-45 04/27/12 120 B 3.1-8 04/09/04 044A B 3.2-8 04/09/04 044A B 3.3-46 08/01/98 223 B 3.1-9 08/01/98 223 B 3.2-9 11/07/01 044 B 3.3-47 08/01/98 223 B 3.1-10 08/01/98 223 B 3.2-10 04/27/12 120 B 3.3-48 08/01/98 223 B 3.1-11 08/01/98 223 B 3.2-11 04/09/04 044A B 3.3-49 04/18/08 093 B 3.1-12 08/01/98 223 B 3.3-1 08/01/98 223 B 3.3-50 03/25/05 070 B 3.1-13 04/09/04 044A B 3.3-2 08/01/98 223 B 3.3-51 03/25/05 070 B 3.1-14 08/01/98 223 B 3.3-3 04/09/04 044A B 3.3-52 03/25/05 070 B 3.1-15 08/01/98 223 B 3.3-4 08/01/98 223 B 3.3-53 03/25/05 070 B 3.1-16 08/01/98 223 B 3.3-5 08/01/98 223 B 3.3-54 04/27/12 120 B 3.1-17 11/20/08 098 B 3.3-6 08/01/98 223 B 3.3-55 04/27/12 120

Page 2 of 5 LIST OF EFFECTIVE PAGES Appendix A to DPR-49 Technical Specifications Bases Revision Date 09/26/12 Pa0e Date Rev PaCe Date Rev PaneP f

DaT)Re R e-v B 3.3-56 04/27/12 B 3.3-57 04/27/12 B 3.3-57A 04/18/08 B 3.3-58 07/06/04 B 3.3-59 07/06/04 B 3.3-60 10/20/03 B 3.3-61 10/20/03 B 3.3-62 10/20/03 B 3.3-63 09/11/06 B 3.3-64 04/18/05 B 3.3-65 04/18/05 B 3.3-66 07/06/04 B 3.3-67 04/27/12 B 3.3-68 04/27/12 B 3.3-69 07/06/04 B 3.3-70 08/01/98 B 3.3-71 08/01/98 B 3.3-72 04/18/05 B 3.3-73 04/27/12 B 3.3-74 04/27/12 B 3.3-75 08/01/98 B 3.3-76 08/01/98 B 3.3-77 08/01/98 B 3.3-78 11/07/01 B 3.3-79 08/01/98 B 3.3-80 08/25/10 B 3.3-81 08/25/10 B 3.3-82 11/07/01 B 3.3-83 08/0-1/98 B 3.3-84 04/27/12 B 3.3-85 04/27/12 B 3.3-86 04/27/12 B 3.3-87 04/09/04 B 3.3-88 08/01/98 B 3.3-89 11/02/98 B 3.3-90 08/01/98 B 3.3-91 08/01/98 B 3.3-92 08/01/98 B 3.3-93 08/01/98 B 3.3-94 04/27/12 B 3.3-95 04/27/12 B 3.3-96 08/01/98 B 3.3-97 08/01/98 B 3.3-98 08/18/06 B 3.3-99 08/01/98 B 3.3-100 04/09/04 B 3.3-101 08/18/06 B 3.3-102 08/01/98 B 3.3-103 08/01/98 120 120 093 067A 067A 065 065 065 088 064 064 067A 120 120 067A 223 223 064 120 120 223 223 223 044 223 123 123 044 223 120 120 120 044A 223 005 223 223 223 223 120 120 223 223 084 223 044A 084 223 223 B 3.3-104 B 3.3-105 B 3.3-106 B 3.3-107 B 3.3-108 B 3.3-109 B 3.3-110 B 3.3-111 B 3.3-112 B 3.3-113 B 3.3-114 B 3.3-115 B 3.3-116 B 3.3-117 B 3.3-118 B 3.3-119 B 3.3-120 B 3.3-121 B 3.3-122 B 3.3-123 B 3.3-124 B 3.3-125 B 3.3-126 B 3.3-127 B 3.3-128 B 3.3-129 B 3.3-130 B 3.3-131 B 3.3-132 B 3.3-133 B 3.3-134 B 3.3-135 B 3.3-136 B 3.3-137 B 3.3-138 B 3.3-139 B 3.3-140 B 3.3-141 B 3.3-142 B 3.3-143 B 3.3-144 B 3.3-145 B 3.3-146 B 3.3-147 B 3.3-148 B 3.3-149 B 3.3-150 B 3.3-151 B 3.3-152 08/01/98 08/01/98 04/09/04 04/09/04 04/09/04 08/01/98 10/05/12 08/01/98 08/01/98 08/01/98 08/01/98 08/01/98 08/01/98 04/09/04 08/01/98 08/01/98 04/09/04 08/01/98 08/01/98 08/01/98 08/01/98 08/01/98 08/01/98 08/01/98 08/01/98 08/01/98 08/01/98 08/01/98 08/01/98 08/01/98 08/01/98 08/01/98 08/01/98 04/27/12 04/27/12 04/27/12 08/01/98 08/01/98 11/07/01 11/07/01 08/01/98 08/01/98 08/01/98 08/01/98 04/27/12 04/27/12 04/27/12 02/09/07 08/01/98 223 223 044A 044A 044A 223 283 223 223 223 223 223 223 044A 223 223 044A 223 223 223 223 223 223 223 223 223 223 223 223 223 223 223 223 120 120 120 223 223 044 044 223 223 223 223 120 120 120 074A 223 B 3.3-153 B 3.3-154 B 3.3-155 B 3.3-156 B 3.3-157 B 3.3-158 B 3.3-159 B 3.3-160 B 3.3-161 B 3.3-162 B 3.3-163 B 3.3-164 B 3.3-165 B 3.3-166 B 3.3-167 B 3.3-168 B 3.3-169 B 3.3-170 B 3.3-171 B 3.3-172 B 3.3-173 B 3.3-174 B 3.3-175 B 3.3-176 B 3.3-177 B 3.3-178 B 3.3-179 B 3.3-180 B 3.3-181 B 3.3-182 B 3.3-183 B 3.3-184 B 3.3-185 B 3.3-186 B 3.3-187 B 3.3-188 B 3.3-189 B 3.3-190 B 3.3-191 B 3.3-192 B 3.3-193 B 3.3-194 B 3.3-195 B 3.3-196 B 3.3-197 B 3.3-198 B 3.3-199 B 3.3-200 B 3.3-201 08/01/98 08/01/98 08/01/98 08/01/98 08/01/98 04/09/04 04/09/04 08/01/98 02/09/07 02/09/07 04/09/04 08/01/98 08/01/98 08/01/98 08/01/98 04/09/04 08/01/98 06/29/00 06/29/00 06/29/00 06/29/00 06/29/00 06/29/00 06/29/00 06/29/00 06/29/00 06/29/00 06/29/00 06/29/00 06/29/00 06/29/00 06/29/00 02/09/07 04/27/12 04/27/12 04/27/12 06/29/00 08/01/98 08/01/98 08/01/98 08/01/98 05/16/01 05/16/01 08/01/98 08/01/98 04/27/12 04/27/12 04/27/12 08/01/98 223 223 223 223 223 044A 044A 223 074A 074A 044A 223 223 223 223 044A 223 003 003 003 003 003 003 003 003 003 003 003 003 003 003 003 074A 120 120 120 003 223 223 223 223 037 037 223 223 120 120 120 223

Page 3 of 5 LIST OF EFFECTIVE PAGES Appendix A to DPR-49 Technical Specifications Bases Revision Date 09/26/12 Page Date Rev.

Pane Date Rev.

Page Date Rev B 3.3-202 08/01/98 B 3.3-203 04/09/04 B 3.3-204 08/01/98 B 3.3-205 04/18/05 B 3.3-206 08/01/98 B 3.3-207 04/27/12 B 3.3-208 04/27/12 B 3.3-209 04/09/04 B 3.3-210 04/09/04 B 3.3-211 08/01/98 B 3.3-212 04/27/12 B 3.3-213 04/27/12 B 3.3-214 04/27/12 B 3.3-215 11/02/98 B 3.3-216 11/02/98 B 3.3-217 08/01/98 B 3.3-218 08/01/98 B 3.3-219 08/01/98 B 3.3-220 08/01/98 B 3.3-221 10/20/03 B 3.3-222 04/27/12 B 3.3-223 04/27/12 B 3.3-224 08/01/98 B 3.3-225 08/01/98 B 3.3-226 08/01/98 B 3.3-227 08/01/98 B 3.3-228 08/01/98 B 3.3-229 04/27/12 B 3.3-230 04/27/12 B 3.4-1 08/01/98 B 3.4-2 08/01/98 B 3.4-3 11/07/01 B 3.4-4 11/07/01 B 3.4-5 08/01/98 B 3.4-6 08/01/98 B 3.4-7 08/01/98 B 3.4-8 04/27/12 B 3.4-9 04/09/04 B 3.4-10 08/01/98 B 3.4-11 08/01/98 B 3.4-12 08/01/98 B 3.4-13 04/27/12 B 3.4-14 04/09/04 B 3.4-15 08/01/98 B 3.4-16 11/07/01 B 3.4-17 08/01/98 B 3.4-18 08/01/98 B 3.4-19 09/26/12 B 3.4-20 09/26/12 223 044A 223 064 223 120 120 044A 044A 223 120 120 120 005 005 223 223 223 223 066 120 120 223 223 223 223 026A 120 120 223 223 044 044 223 223 223 120 044A 223 223 223 120 044A 223 044 223 223 129 129 B 3.4-21 B 3.4-22 B 3.4-23 B 3.4-24 B 3.4-25 B 3.4-26 B 3.4-27 B 3.4-28 B 3.4-29 B 3.4-30 B 3.4-31 B 3.4-32 B.3.4-32a B 3.4-33 B 3.4-34 B 3.4-35 B 3.4-36 B 3.4-37 B 3.4-38 B 3.4-39 B 3.4-40 B 3.4-41 B 3.4-42 B 3.4-43 B 3.4-44 B 3.4-45 B 3.4-46 B 3.4-47 B 3.4-48 B 3.4-49 B 3.4-50 B 3.4-51 B 3.4-52 B 3.4-53 B 3.4-54 B 3.4-55 B 3.4-56 B 3.4-57 B 3.4-58 B 3.4-59 B 3.4-60 B 3.4-61 B 3.5-1 B 3.5-2 B 3.5-3 B 3.5-4 B 3.5-5 B 3.5-6 B 3.5-7 08/01/98 223 08/01/98 223 08/01/98 223 08/01/98 223 04/27/12 120 08/01/98 223 04/30/99 005 05/16/01 045 05/16/01 045 05/16/01 045 04/18/05 064 04/27/12 120 04/27/12 120 04/09/04 044A 08/20/01 037 04/18/05 064 04/27/12 120 08/01/98 223 10/30/00 026A 04/18/05 064 08/01/98 223 04/27/12 120 08/01/98 223 08/01/98 223 10/30/00 026A 08/01/98 223 08/01/98 223 04/27/12 120 08/01/98 223 08/01/98 223 08/01/98 223 04/30/99 017 04/30/99 017 04/30/99 017 04/27/12 120 04/30/99 017 04/27/12 120 04/27/12 120 04/09/04 044A 10/26/07 097 04/27/12 120 10/26/07 097 08/01/98 223 08/01/98 223 08/01/98 223 10/10/08 112 10/10/08 112 10/10/08 112 04/18/05 064 B 3.5-8 B 3.5-9 B 3.5-10 B 3.5-11 B 3.5-12 B 3.5-13 B 3.5-14 B 3.5-15 B 3.5-16 B 3.5-17 B 3.5-18 B 3.5-19 B 3.5-20 B 3.5-21 B 3.5-22 B 3.5-23 B 3.5-24 B 3.5-25 B 3.5-26 B 3.5-27 B 3.5-28 B 3.5-29 B 3.5-30 B 3.5-31 B 3.5-32 B 3.5-33 B 3.6-1 B 3.6-2 B 3.6-3 B 3.6-4 B 3.6-5 B 3.6-6 B 3.6-7 B 3.6-8 B 3.6-9 B 3.6-10 B 3.6-11 B 3.6-12 B 3.6-13 B 3.6-14 B 3.6-15 B 3.6-16 B 3.6-17 B 3.6-18 B 3.6-19 B 3.6-20 B 3.6-21 B 3.6-22 B 3.6-23 08/01/98 08/01/98 08/01/98 08/01/98 11/07/01 04/27/12 04/27/12 04/27/12 04/27/12 04/27/12 09/26/12 09/26/12 04/09/04 08/01/98 10/05/12 08/01/98 08/01/98 10/05/12 04/27/12 08/01/98 04/09/04 04/18/05 04/27/12 04/27/12 04/27/12 04/27/12 08/01/98 08/01/98 04/09/04 08/01/98 04/27/12 08/01/98 11/07/01 08/01/98 08/01/98 08/01/98 08/01/98 08/01/98 04/27/12 9/30/10 02/09/07 9/30/10 9/30/10 09/30/10 07/02/99 09/30/10 09/30/10 09/30/10 09/30/10 223 223 223 223 044 120 120 120 120 120 129 129 044A 223 283 223 223 283 120 223 044A 064 120 120 120 223 223 223 044A 223 120 223 044 223 223 223 223 223 120 104 074A 104 104 104 006 104 104 104 104

Page 4 of 5 LIST OF EFFECTIVE PAGES Appendix A to DPR-49 Technical Specifications Bases Revision Date 09/26/12 Page Date Rev Paoe Date Rev Date R ev Date Rev B 3.6-24 B 3.6-25 B 3.6-26 B 3.6-27 B 3.6-28 B 3.6-29 B 3.6-30 B 3.6-31 B 3.6-32 B 3.6-33 B 3.6-34 B 3.6-35 B 3.6-36 B 3.6-37 B 3.6-38 B 3.6-39 B 3.6-40 B 3.6-41 B 3.6-42 B 3.6-43 B 3.6-44 B 3.6-45 B 3.6-46 B 3.6-47 B 3.6-48 B 3.6-49 B 3.6-50 B 3.6-51 B 3.6-52 B 3.6-53 B 3.6-54 B 3.6-55 B 3.6-56 B 3.6-57 B 3.6-58 B 3.6-59 B 3.6-60 B 3.6-61 B 3.6-62 B 3.6-63 B 3.6-64 B 3.6-65 B 3.6-66 B 3.6-67 B 3.6-68 B 3.6-69 B 3.6-70 B 3.6-71 B 3.6-72 09/30/10 104 09/30/10 104 04/27/12 120 04/27/12 120 04/27/12 120 4/16/10 096A 11/07/01 044 08/01/98 223 04/27/12 120 08/01/98 223 08/01/98 223 09/26/12 129 09/26/12 129 08/01/98 223 08/01/98 223 08/01/98 223 08/01/98 223 08/01/98 223 04/27/12 120 08/01/98 223 04/09/04 044A 08/01/98 223 08/01/98 223 04/27/12 120 04/27/12 120 08/01/98 044A 11/07/01 223 11/02/98 005 08/01/98 223 04/27/12 120 04/09/04 044A 08/01/98 223 08/01/98 223 04/27/12 120 08/01/98 223 11/07/01 044 11/07/01 044 08/01/98 223 08/01/98 223 04/27/12 120 04/09/04 044A 10/20/99 018 10/20/99 018 08/01/98 223 04/27/12 120 07/27/07 083A Deleted Deleted Deleted B 3.6-73 B 3.6-74 B 3.6-75 B 3.6-76 B 3.6-77 B 3.6-78 B 3.6-79 B 3.6-80 B 3.6-81 B 3.6-82 B 3.6-83 B 3.6-84 B 3.6-85 B 3.6-86 B 3.6-87 B 3.6-88 B 3.6-89 B 3.6-90 B 3.6-91 B 3.6-92 B 3.6-93 B 3.6-94 B 3.6-95 B 3.6-96 B 3.7-1 B 3.7-2 B 3.7-3 B 3.7-4 B 3.7-5 B 3.7-6 B 3.7-7 B 3.7-8 B 3.7-9 B 3.7-10 B 3.7-11 B 3.7-12 B 3.7-13 B 3.7-14 B 3.7-15 B 3.7-16 B 3.7-17 B 3.7-18 B 3.7-19 B 3.7-20 B 3.7-21 B 3.7-22 B 3.7-23 B 3.7-24 Deleted 07/27/07 083A 07/27/07 083A 04/27/12 120 07/27/07 083A 05/16/01 037 05/16/01 037 05/16/01 037 04/27/12 120 04/09/04 044A 09/30/10 104 09/30/10 104 05/16/01 037 09/30/10 104 09/30/10 104 04/27/12 120 04/27/12 120 04/09/04 044A 08/20/01 037 05/16/01 223 05/16/01 037 04/27/12 120 04/27/12 120 04/09/04 044A 04/09/04 044A 04/09/04 044A 08/01/98 044A 04/18/05 064 08/01/98 223 04/27/12 120 04/02/09 095 04/02/09 095 04/02/09 095 04/27/12 120 04/27/12 120 04/27/12 120 04/09/04 044A 05/27/11 127 08/01/98 223 08/01/98 223 04/27/12 120 12/18/08 092 12/18/08 092 12/18/08 092 12/18/08 092 12/18/08 092 12/18/08 092 12/18/08 092 B 3.7-24B 04/27/12 120 B 3.7-24C 04/27/12 120 B 3.7-25 12/18/08 223 B 3.7-26 12/18/08 223 B 3.7-27 12/18/08 113 B 3.7-28 01/18/08 068 B 3.7-29 04/27/12 120 B 3.7-30 04/09/04 044A B 3.7-31 08/01/98 223 B 3.7-32 04/27/12 120

.B 3.7-33 08/25/10 123 B 3.7-34 02/23/09 115 B 3.7-35 04/27/12 120 B 3.7-36 04/27/12 120 B 3.7-37 04/09/04 044A B 3.7-38 04/27/12 120 B 3.7-39 04/09/04 044A B 3.7-40 04/09/04 044A B 3.7-41 07/02/99 006 B 3.7-42 07/02/99 006 B 3.7-43 07/02/99 006 B 3.7-44 04/27/12 120 B 3.8-1 04/09/04 044A B 3.8-2 10/10/08 111 B 3.8-3 04/09/04 044A B 3.8-4 06/09/06 082 B 3.8-5 06/09/06 082 B 3.8-6 06/09/06 082 B 3.8-7 08/01/98 223 B 3.8-8 09/26/08 lOlA B 3.8-9 09/26/08 lOlA B 3.8-10 09/26/08 101A B 3.8-11 09/26/08 lOlA B 3.8-12 09/26/08 lOlA B 3.8-13 09/26/08 lOlA B 3.8-14 09/26/08 101A B 3.8-15 04/27/12 120 B 3.8-16 04/27/12 120 B 3.8-17 04/27/12 120 B 3.8-18 04/27/12 120 B 3.8-19 04/27/12 120 B 3.8-20 04/27/12 120 B 3.8-21 04/27/12 120 B 3.8-22 04/27/12 120 B 3.8-23 04/09/04 044A B 3.8-24 04/27/12 120 B 3.8-25 06/09/06 082 B 3.8-26 08/01/98 223 B 3.8-27 08/01/98 223 B 3.7-24A 04/27/12 120

Page 5 of 5 LIST OF EFFECTIVE PAGES Appendix A to DPR-49 Technical Specifications Bases Revision Date 09/26/12 Pa2e Date Rev.

Pane Date Rev.

Paee Date Rev.

B 3.8-28 B 3.8-29 B 3.8-30 B 3.8-31 B 3.8-32 B 3.8-33 B 3.8-34 B 3.8-35 B 3.8-36 B 3.8-37 B 3.8-38 B 3.8-39 B 3.8-40 B 3.8-41 B 3.8-42 B 3.8-43 B 3.8-44 B 3.8-45 B 3.8-46 B 3.8-47 B 3.8-48 B 3.8-49 B 3.8-50 B 3.8-51 B 3.8-52 B 3.8-53 B 3.8-54 B 3.8-55 B 3.8-56 B 3.8-57 B 3.8-58 B 3.8-59 B 3.8-60 B 3.8-61 B 3.8-62 B 3.8-63 B 3.8-64 B 3.8-65 B 3.8-66 B 3.8-67 B 3.8-68 B 3.8-69 B 3.8-70 B 3.8-71 B 3.8-72 B 3.8-73 B 3.8-74 B 3.8-75 B 3.8-76 08/01/98 223 08/01/98 223 10/30/00 026A 10/30/00 026A 08/18/06 085 08/18/06 085 08/01/98 223 10/27/06 086 08/01/98 223 04/27/12 120 08/01/98 223 04/27/12 120 04/27/12 120 08/01/98 223 06/02/09 118 04/09/04 044A 08/01/98 223 11/22/02 048 11/22/02 048 04/27/12 120 04/27/12 120 04/27/12 120 01/24/03 060 04/27/12 120 04/09/04 044A 08/01/98 223 08/01/98 223 04/09/04 044A 04/09/04 044A 06/12/09 118 06/12/09 118 04/27/12 120 08/01/98 223 08/01/98 223 04/09/04 044A 04/09/04 044A 11/02/98 005 08/01/98 223 08/01/98 223 08/01/98 223 08/01/98 223 08/01/98 223 11/02/98 005 04/27/12 120 04/27/12 120 08/01/98 223 04/09/04 044A 08/01/98 223 11/02/98 005 B 3.8-77 B 3.8-78 B 3.9-1 B 3.9-2 B 3.9-3 B 3.9-4 B 3.9-5 B 3.9-6 B 3.9-7 B 3.9-8 B 3.9-9 B 3.9-10 B 3.9-11 B 3.9-12 B 3.9-13 B 3.9-14 B 3.9-15 B 3.9-16 B 3.9-17 B 3.9-18 B 3.9-19 B 3.9-20 B 3.9-21 B 3.9-22 B 3.9-23 B 3.9-24 B 3.9-25 B 3.9-26 B 3.9-27 B 3.9-28 B 3.9-29 B 3.9-30 B 3.9-31 B 3.10-1 B 3.10-2 B 3.10-3 B 3.10-4 B 3.10-5 B 3.10-5A B 3.10-6 B 3.10-7 B 3.10-8 B 3.10-9 B 3.10-10 B 3.10-11 B 3.10-12 B 3.10-13 B 3.10-14 11/02/98 04/27/12 08/01/98 08/01/98 08/01/98 04/27/12 08/01/98 08/01/98 04/27/12 04/27/12 08/01/98 04/27/12 04/09/04 08/01/98 08/01/98 08/01/98 04/09/04 08/01/98 08/01/98 04/27/12 04/09/04 08/01/98 04/27/12 08/01/98 10/30/00 06/12/09 03/17/99 04/27/12 08/01/98 10/30/00 03/17/99 08/01/98 04/27/12 02/16/07 02/16/07 02/16/07 02/16/07 02/16/07 02/16/07 08/01/98 08/01/98 08/01/98 08/01/98 04/27/12 08/01/98 08/01/98 08/01/98 08/01/98 005 120 223 223 223 120 223 223 120 120 223 120 044A 223 223 223 044A 223 223 120 044A 223 120 223 223 117 019 120 223 026A 019 223 120 078 078 078 078 078 078 223 223 223 223 120 223 223 223 223 120 B 3.10-16 08/01/98 B 3.10-17 08/01/98 B 3.10-18 08/01/98 B 3.10-19 08/01/98 B 3.10-20 04/27/12 B 3.10-21 08/01/98 B 3.10-22 08/01/98 B 3.10-23 08/01/98 B 3.10-24 08/01/98 B 3.10-25 04/27/12 B 3.10-26 08/01/98 B 3.10-27 08/01/98 B 3.10-28 04/27/12 B 3.10-29 08/01/98 B 3.10-30 08/01/98 B 3.10-31 08/01/98 B 3.10-32 08/01/98 B 3.10-33 08/01/98 B 3.10-34 08/01/98 B 3.10-35 08/01/98 B 3.10-36 08/01/98 B 3.10-37 04/27/12 B 3.10-38 04/27/12 223 223 223 223 120 223 223 223 223 120 223 223 120 223.

223 223 223 223 223 223 223 120 120 B 3.10-15 04/27/12

ECCS Instrumentation B 3.3.5.1 BASES APPLICABLE SAFETY

ANALYSES, LCO, and APPLICABILITY 1.d, 2.f. Core Spray and Low Pressure Coolant Iniection Pump Discharge Flow-Low (Bypass) (continued) that the closure of the minimum flow valve is initiated to allow the assumed flow into the core. Each channel of Pump Discharge Flow -

Low Function (two CS channels, one per pump and two LPCI channels, one per loop) is only required to be OPERABLE when the associated ECCS is required to be OPERABLE to ensure that no single instrument failure can preclude the ECCS function.* Refer to LCO 3.5.1 and LCO 3.5.2 for Applicability Bases for the low pressure ECCS subsystems.

• Per footnote (e) to Function ld in Table 3.3.5.1-1, the CS minimum flow path instrumentation is not required to be OPERABLE in MODES 4 and 5 during RFO 23.

2.d. Reactor Vessel Shroud Level -

Low I

The Reactor Vessel Shroud Level-Low Function is provided as a permissive to allow the RHR System to be manually aligned from the LPCI mode to the suppression pool cooling/spray or drywell spray modes with a LPCI initiation signal still present. This function ensures: 1) that the permissive is removed prior to reaching two thirds core height when vessel level is decreasing, and 2) that the permissive is not restored until two thirds core height is reached when vessel level is increasing. This ensures that LPCI is available to prevent or minimize fuel damage. This function may be overridden during accident conditions as allowed by plant procedures to allow containment cooling/spray regardless of the level present in the shroud.

Reactor Vessel Shroud Level -

Low signals are initiated from four level transmitters that sense the difference between the pressure due to a constant column of water (reference leg) and the pressure due to the actual water level (variable leg) in the vessel. The Reactor Vessel Shroud Level -

Low Allowable Value is chosen to allow the low pressure core flooding systems to activate and provide adequate cooling before allowing a manual transfer.

Four channels of the Reactor Vessel Shroud Level -

Low Function are only required to be OPERABLE in MODES 1, 2, and 3. In MODES 4 and 5, the specified initiation time of the LPCI subsystems is not assumed, and other administrative controls are adequate to control the valves that this Function isolates (since the containment cooling mode of RHR is not required to be OPERABLE in MODES 4 and 5 and is normally not used).

(continued)

DAEC B 3.3-110 TSCR-135

ECCS -

Shutdown B 3.5.2 BASES LCO (continued)

Vessel (RPV)*. Each LPCI subsystem consists of one motor driven RHR pump, piping, and valves to transfer water from the suppression pool to the RPV. Only a single RHR pump is required per subsystem because of the larger injection capacity in relation to a CS subsystem. In MODES 4 and 5, the RHR System cross tie valve is not required to be open. The necessary portions of Emergency Service Water are also required to provide appropriate cooling to each required CS subsystem. One LPCI subsystem may be aligned for decay heat removal and considered OPERABLE for the ECCS function, if it can be manually realigned (remote or local) to the LPCI mode and is not otherwise inoperable. Because of low pressure and low temperature conditions in MODES 4 and 5, sufficient time will be available to manually align and initiate LPCI subsystem operation to provide core cooling prior to postulated fuel uncovery.

APPLICABILITY OPERABILITY of the low pressure ECCS subsystems is required in MODES 4 and 5 to ensure adequate coolant inventory and sufficient heat removal capability for the irradiated fuel in the core in case of an inadvertent draindown of the vessel. Requirements for ECCS OPERABILITY during MODES 1, 2, and 3 are discussed in the Applicability section of the Bases for LCO 3.5.1.

ECCS subsystems are not required to be OPERABLE during MODE 5 with the spent fuel storage pool gates removed and the water level maintained at > 21 ft 1 inch above the RPV flange.

This provides sufficient coolant inventory to allow operator action to terminate the inventory loss prior to fuel uncover in case of an inadvertent draindown.

The Automatic Depressurization System is not required to be OPERABLE during MODES 4 and 5 because the RPV pressure is

< 100 psig, and the CS and LPCI subsystems can provide core cooling without any depressurization of the primary system.

The High Pressure Coolant Injection System is not required to be OPERABLE during MODES 4 and 5 since the low pressure ECCS subsystems can provide sufficient flow to the vessel and because insufficient reactor pressure is available to drive the HPCI turbine.

• During Refuel Outage (RFO) 23, the CS minimum flow path is not required to be available for CS to be considered OPERABLE.

(continued)

DAEC B 3.5-22 TSCR-1 35

ECCS -

Shutdown B 3.5.2 BASES SURVEILLANCE SR 3.5.2.1 and SR 3.5.2.2 (continued)

REQUIREMENTS When suppression pool level is < 8.0 ft, the CS System is considered OPERABLE only if it can take suction from the CST, and the CST water level is sufficient to provide the required NPSH for the CS pump. Therefore, a verification that either the suppression pool water level is >_ 8.0 ft or that CS is aligned to take suction from the CSTs and the CSTs contain

> 75,000 gallons of water, equivalent to 11 ft in one CST or > 7 ft in both CSTs, ensures that the CS System can supply at least 75,000 gallons.of makeup water to the RPV. However, as noted, only one required CS subsystem may take credit for the CST option during OPDRVs. During OPDRVs, the volume in the CST may not provide adequate makeup if the RPV were completely drained. Therefore, only one CS subsystem is allowed to use the CST. This ensures the other required ECCS subsystem has adequate makeup volume.

The Surveillance Frequency is controlled under the Surveillance Frequency Control Program. The Frequency of these SRs was developed considering operating experience related to suppression pool water level and CST water level variations during the applicable MODES. Furthermore, the Frequency is considered adequate in view of other indications available in the control room to alert the operator to an abnormal suppression pool or CST water level condition.

SIR 3.5.2.3, SR 3.5.2.5, and SIR 3.5.2.6 The Bases provided for SIR 3.5.1.1, SR 3.5.1.4, and SIR 3.5.1.7 are applicable to SR 3.5.2.3, SIR 3.5.2.5, and SR 3.5.2.6, respectively.

S R 3.5.2.4 Verifying the correct alignment for power operated and automatic valves in the ECCS flow paths provides assurance that the proper flow paths will exist for ECCS operation.* This SR does not apply to valves that are locked, sealed, or otherwise secured in position, since these valves were verified to be in the correct position prior to locking, sealing, or securing. A valve that receives an initiation signal is allowed to be in a nonaccident position provided the

• During Refuel Outage (RFO) 23, the CS minimum flow path is not required to be available for CS to be considered OPERABLE.

(continued)

DAEC B 3.5-25 TSCR-1 35