CP-200801604, Supplemental Response to NRC Generic Letter 2008-01, Managing Gas Accumulation in Emergency Core Cooling, Decay Heat Removal, and Containment Spray Systems
| ML083260571 | |
| Person / Time | |
|---|---|
| Site: | Comanche Peak  |
| Issue date: | 11/11/2008 |
| From: | Blevins M Luminant Generation Co, Luminant Power |
| To: | Document Control Desk, Office of Nuclear Reactor Regulation |
| References | |
| CP-200801604, GL-2008-01, TXX-08120, TXX-08138 | |
| Download: ML083260571 (2) | |
Text
Mike Blevins Luminant Power Executive Vice President P 0 Box 1002
& Chief Nuclear Officer 6322 North FM 56 Mike.Blevins@Luminant.com Glen Rose, TX 76043 T 254 897 5209 C 817 559 9085 F 254 897 6652 CP-200801604 Ref. #
Log # TXX-08138 November 11, 2008 U. S. Nuclear Regulatory Commission ATTN: Document Control Desk 11555 Rockville Pike Rockville, MD 20852
SUBJECT:
CQMANCHE PEAK STEAM ELECTRIC STATION, DOCKET NOS. 50-445 AND 50-446, SUPPLEMENTAL RESPONSE TO NRC GENERIC LETTER 2008-01, "MANAGING GAS ACCUMULATION IN EMERGENCY CORE COOLING, DECAY HEAT REMOVAL, AND CONTAINMENT SPRAY SYSTEMS" (TAC NOS. MD7813 AND MD7814)
REFERENCE:
- 1. NRC Generic Letter 2008-01 "Managing Gas Accumulation in Emergency Core Cooling, Decay Heat Removal, and Containment Spray Systems" dated January 11, 2008 (ML072910759)
- 2.
Luminant Power letter, Logged TXX-08120, from Mike Blevins to the Nuclear Regulatory Commission dated October 14, 2008
Dear Sir or Madam:
The Nuclear Regulatory Commission (NRC) issued Generic Letter (GL) 2008-01 (Reference 1) to request that each licensee evaluate the licensing basis, design, testing, and corrective action programs for the Emergency Core Cooling System (ECCS), Residual'Heat Removal (RHR) system, and Containment Spray System (CSS), to ensure that gas accumulation is maintained less than the amount that challenges operability of these systems, and that appropriate action is taken when conditions adverse to quality are identified. Reference 2 provided the Luminant Generation Company, LLC (Luminant Power) nine-month response to NRC GL 2008-01.
Section B.3 of the Attachment to Reference 2 indicated that six confirmatory Unit 1 Ultrasonic Tests (UTs) would be performed following the completion of the Unit 1 2008 fall refueling outage and a supplemental response would be issued to the NRC within 30 days after MODE 1 is achieved for Unit 1 (Commitment Number 3618708).
This supplemental response is submitted to confirm that the six remaining Unit 1 Ultrasonic Tests (UTs) have been completed and no gas was found at these locations. The action identified in commitment number 3618708 has been completed.
The commitment number is used by Luminant Power for the internal tracking of Comanche Peak commitments.
This communication contains no new licensing basis commitments regarding Comanche Peak Units 1 and 2.
A member of the STARS (Strategic Teaming and Resource Sharing) Alliance
/
q Callaway Comanche Peak - Diablo Canyon.* Palo Verde
- San Onofre
- South Texas Project - Wolf Creek
U. S. Nuclear Regulatory Commission TXX-08138 Page 2 11/11/2008 This supplemental response also updates two references to Corrective Action Program tracking documents. In Section B.2 of the Attachment to Reference 2, Corrective Action No. 1 (Gas Intrusion Program) should reference SmartForm 2008-003460 instead of SmartForm 2008-003459, and Corrective Action No. 2 (Install Vent Valves and Pressure Gauges) should reference SmartForm 2008-003459 instead of SmartForm 2008-003460.
The conclusions provided in Reference 2, that subject systems are in compliance with the current licensing and design bases and applicable regulatory requirements, and that suitable design, operational, and testing control measures are in place for maintaining this compliance, remain unchanged.
I state under penalty of perjury that the foregoing is true and correct.
Executed on November 11, 2008.
Should you have any questions, please contact Mr. CarlCorbin at (254) 897-0121.
Sincerely, Luminant Generation Company LLC Mike Blevins By:
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,/Fred W. Madden Director, Oversight & Regulatory Affairs c -
E. E. Collins, Region IV B. K. Singal, NRR Resident Inspectors, Comanche Peak