CPSES-200601177, Supplement to License Amendment Request (LAR) 05-010 Revision to Technical Specification 3.3.2, ESFAS Instrumentation, 3.5.2, ECCS-Operating, and 3.6.7, Spray Additive System.

Supplement to License Amendment Request (LAR)05-010 Revision to Technical Specification 3.3.2, ESFAS Instrumentation, 3.5.2, ECCS-Operating, and 3.6.7, Spray Additive System.

ML061800342
Person / Time
Site:	Comanche Peak
Issue date:	06/23/2006
From:	Madden F TXU Power
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
00236, CPSES-200601177, LAR 05-010, TXX-06097
Download: ML061800342 (5)

Text

VhTXU Power T=U Power Mike Blevins Comanche Peak Steam Senior Vice President & Ref: 10CFR50.90 Electric Stn Chief Nucear Officer P.O. Box 1002 (EO1)

Glen Rose, TX 76043 Tel: 254 897 5209 Fax: 254 897 6652 mike.blevins@txu.com CPSES-200601177 Log # TXX-06097 File # 00236 June 23, 2006 U. S. Nuclear Regulatory Commission Attn: Document Control Desk Washington, DC 20555

SUBJECT:

COMANCHE PEAK STEAM ELECTRIC STATION (CPSES)

DOCKET NOS. 50-445 AND 50-446 SUPPLEMENT TO LICENSE AMENDMENT REQUEST (LAR)05-010 REVISION TO TECHNICAL SPECIFICATION 3.3.2, "ESFAS INSTRUMENTATION," 3.5.2, "ECCS-OPERATING," AND 3.6.7, "SPRAY ADDITIVE SYSTEM" REF: 1. Letter logged TXX-05199, dated December 16, 2005 from Mr. Mike Blevins of TXU Power to the NRC

2. Letter logged TXX-05162, dated September 1, 2005 from Mr. Mike Blevins of TXU Power to the NRC

3. Letter logged TXX-06062, dated March 31, 2006 from Mr. Mike Blevins of TXU Power to the NRC

Dear Sir or Madam:

In Reference 1, TXU Generation Company LP (TXU Power) requested an amendment to the CPSES Unit 1 Operating License (NPF-87) and CPSES Unit 2 Operating License (NPF-89) to revise Technical Specifications 3.3.2, 3.5.2, and 3.6.7 entitled "ESFAS Instrumentation," "ECCS---Operating," and "Spray Additive System," respectively, in the CPSES Units 1 and 2 Technical Specifications (TS).

This change was requested pursuant to Generic Letter 2004-02 as described in Reference 2.

A member of the STARS (Strategic Teaming and Resource Sharing) Alliance Callaway 9 Comanche Peak 9 Diablo Canyon

• Palo Verde

• South Texas Project e Wolf Creek Avof

TXX-06097 Page 2 of 3 TXU Power has reviewed the chemical buffering agents associated with Technical Specification 3.6.7 for maintaining the containment sump equilibrium pH >7.1. TXU Power has concluded that sodium hydroxide may be found to be the preferred buffering agent. A comparison of reduced NaOH to TSP and other alternate chemical buffers being investigated by the PWR Owner's Group is being performed. CPSES does not have calcium silicate insulation and its internal Containment structures have minimal bare (uncoated) concrete; therefore, TSP would be an acceptable buffering agent. However, if NaOH injection is reduced to stay in the same general pH range as TSP, it could be a superior buffering agent. TXU Power will advise the NRC of the status of these evaluations and any modifications in the scheduled GSI- 191 responses to NRC questions.

Furthermore, TXU Power requested approval of the proposed License Amendment by July 1, 2006. TXU Power has further reviewed the implementation schedule and believes it is prudent to implement the proposed changes to Specification 3.5.2 and 3.6.7 within 120 days of approval of this License Amendment. Implementation of Specification 3.3.2 is needed for Unit 1 prior to completion of the 12,h refueling outage in the spring of 2007 and for Unit 2 prior to completion of the 9th refueling outage scheduled in the fall of 2006. Attachment 1 provides a revised a markup of Technical Specification Table 3.3.2-1 reflecting the revised implementation schedule and Attachment 2 provides a retyped page of Table 3.3.2-1.

In accordance with 10CFR50.91 (b), TXU Power is providing the State of Texas with a copy of this proposed supplement.

TXX-06097 Page 3 of 3 Should you have any questions, please contact Mr. J. D. Seawright at (254) 897-0140.

I state under penalty of perjury that the foregoing is true and correct.

Executed on June 23, 2006.

Sincerely, TXU Generation Company LP By: TXU Generation Management Company LLC Its General Partner Mike Blevins By: JL2Z A red W. Madden Director, Regulatory Affairs JDS Attachment c - B. S. Mallett, Region IV M. C. Thadani, Region IV Resident Inspectors, CPSES Ms. Alice Rogers Bureau of Radiation Control Texas Department of Public Health 1100 West 49th Street Austin, Texas 78756-3189

Attachment 1 to TXX-06067 ESFAS Instrumentation 3.3.2 Table 3.3.2-1 (page 6 of 6)

Engineered Safety Feature Actuation System Instrumentation APPLICABLE MODES OR OTHER SPECIFIED REQUIRED SURVEILLANCE ALLOWABLE FUNCTION CONDITIONS CHANNELS CONDITIONS REQUIREMENTS VALUE(a)

7. Automatic Switchover to Containment Sump

a. Automatic 1,2, 3, 4 2 trains C SR 3.3.2.2 NA Actuation Logic SR 3.3.2.4 and Actuation SR 3.3.2.6 Relays

b. Refueling 1, 2,3, 4 4 K SR 3.3.2.1 24" 31.9(b)%

Water Storage I SR 3.3.2.5 instrument span Tank (RWST) SR 3.3.2.9 Level - Low SR 3.3.2.10 Low Coincident with Refer to Function 1 (Safety Injection) for all initiation functions and requirements.

Safety Injection

8. ESFAS Interlocks

a. Reactor Trip, 1,2,3 1 per train, 2 F SR 3.3.2.11 NA P-4 trains

b. Pressurizer 1, 2,3 3 L SR 3.3.2.5 _<1975.2 psig Pressure, P-11 SR 3.3.2.9 (Unit 1)

< 1976.4 psig (Unit 2)

(a) The Allowable Value defines the limiting safety system setting. See the Bases for the Trip Setpoints.

(b) The Unit 1 RWST Level Low-Low Allowable Value will remain at ? 43.9% instrument span until completion of Cycle 12.

I COMANCHE PEAK - UNITS 1 AND 2 3.3-34 Amendment No. 42-6,

Attachment 2 to TXX-06067 ESFAS Instrumentation 3.3.2 Table 3.3.2-1 (page 6 of 6)

Engineered Safety Feature Actuation System Instrumentation APPLICABLE MODES OR OTHER SPECIFIED REQUIRED SURVEILLANCE ALLOWABLE FUNCTION CONDITIONS CHANNELS CONDITIONS REQUIREMENTS VALUE(a)

7. Automatic Switchover to Containment Sump

a. Automatic 1, 2, 3, 4 2 trains C SR 3.3.2.2 NA Actuation Logic SR 3.3.2.4 and Actuation SR 3.3.2.6 Relays

b. Refueling Water Storage 1,2,3,4 4 K SR 3.3.2.1 SR 3.3.2.5 31.9(b)%

instrument span I Tank (RWST) SR 3.3.2.9 Level - Low SR 3.3.2.10 Low Coincidentwith Refer to Function 1 (Safety Injection) for all initiation functions and requirements.

Safety Injection

8. ESFAS Interlocks

a. Reactor Trip, 1,2,3 1 per train, 2 F SR 3.3.2.11 NA P-4 trains

b. Pressurizer 1, 2, 3 3 L SR 3.3.2.5 :5 1975.2 psig Pressure, P-11 SR 3.3.2.9 (Unit 1)

_<1976.4 psig (Unit 2)

(a) The Allowable Value defines the limiting safety system setting. See the Bases for the Trip Setpoints.

(b) The Unit I RWST Level Low-Low Allowable Value will remain at ý 43.9% instrument span until completion of Cycle 12.

I COMANCHE PEAK - UNITS 1 AND 2 3.3-34 Amendment No. 426,