ML100430444
| ML100430444 | |
| Person / Time | |
|---|---|
| Site: | Harris  |
| Issue date: | 01/28/2010 |
| From: | Burton C Progress Energy Carolinas |
| To: | Document Control Desk, Office of Nuclear Reactor Regulation |
| References | |
| GL-08-001, HNP-10-016, TAC MD7832 | |
| Download: ML100430444 (4) | |
Text
&Christopher L Burton Progress Energy Vis lear Pslnt Harris Nuclear Plant Progress Energy Carolinas, Inc.
Serial: HNP-10-016 JAN 28 2010 10 CFR 50.54(f)
U.S. Nuclear Regulatory Commission ATTENTION: Document Control Desk Washington, DC 20555 SHEARON HARRIS NUCLEAR POWER PLANT, UNIT NO. 1 DOCKET NO. 50-400/RENEWED LICENSE NO. NPF-63 RESPONSE TO REQUEST FOR ADDITIONAL INFORMATION RELATED TO GENERIC LETTER 2008-01, "MANAGING GAS ACCUMULATION IN EMERGENCY CORE COOLING, DECAY HEAT REMOVAL, AND CONTAINMENT SPRAY SYSTEMS" (TAC NO. MD7832)
References:
- 1. Letter from R. J. Duncan to the Nuclear Regulatory Commission (Serial:
HNP-08-047), "Three Month Response to NRC Generic Letter 2008-01,
'Managing Gas Accumulation in Emergency Core Cooling, Decay Heat Removal, and Containment Spray Systems,"' dated May 09, 2008 (ML081360497)
- 2. Letter from C. L. Burton to the Nuclear Regulatory Commission (Serial:
HNP-08-098), "Nine-Month Response to NRC Generic Letter 2008-01,
'Managing Gas Accumulation in Emergency Core Cooling, Decay Heat Removal, and Containment Spray Systems,"' dated October 14, 2008 (ML082910295)
- 3. Letter from C. L. Burton to the Nuclear Regulatory Commission (Serial:
HNP-09-079), "Nine-Month Supplemental (Post-Outage) Response to NRC Generic Letter 2008-01, 'Managing Gas Accumulation in Emergency Core Cooling, Decay Heat Removal, and Containment Spray Systems,"' dated August 10, 2009 (ML092250226)
- 4. Letter from M. G. Vaaler, Nuclear Regulatory Commission, to C. L.
Burton, "Shearon Harris Nuclear Power Plant, Unit 1 - Request for Additional Information Related to Generic Letter 2008-01, 'Managing Gas Accumulation in Emergency Core Cooling, Decay Heat Removal, and Containment Spray Systems' (TAC NO. MD7832)," dated December 18, 2009 (ML093510091)
Ladies and Gentlemen:
Carolina Power & Light Company, now doing business as Progress Energy Carolinas, Inc.
(PEC), provided Harris Nuclear Plant's (HNP) responses to GL 2008-01 in submittals dated PO. Box 165 New Hill, NC 27562 T> 919.362.2502 F> 919.362.2095
Serial: HNP-10-016 Page 2 May 09, 2008, October 14, 2008, and August 10, 2009, (References 1, 2, 3).
On December 18, 2009, INP received a request from the NRC (Reference 4) for additional information needed to complete its review of the submittals.
The Enclosure to this letter provides HNP's responses to this request for additional information.
No new regulatory commitments are contained in this submittal.
Please refer any questions regarding this submittal to Mr. Dave Corlett, Supervisor -
Licensing/Regulatory Programs, at (919) 362-3137.
I declare under penalty of perjury that the foregoing is true and correct. Executed on JAN 28 2010 Sincerely, Christopher L. Burton Vice President Harris Nuclear Plant CLB/kms
Enclosure:
Response to Request for Additional Information Related to Generic Letter 2008-01 cc:
Mr. J. D. Austin, NRC Senior Resident Inspector, HNP Mr. L. A. Reyes, NRC Regional Administrator, Region II Ms. M. G. Vaaler, NRR Project Manager, HNP
Enclosure to SERIAL: HNP-10-016 SHEARON HARRIS NUCLEAR POWER PLANT, UNIT NO. 1 DOCKET NO. 50-400/RENEWED LICENSE NO. NPF-63 RESPONSE TO REQUEST FOR ADDITIONAL INFORMATION RELATED TO GENERIC LETTER 2008-01
Background
On January 11, 2008, the Nuclear Regulatory Commission (NRC) issued Generic Letter (GL) 2008-01 (Reference 1), requesting that each licensee evaluate the licensing basis, design, testing, and corrective action programs for the Emergency Core Cooling Systems (ECCS), Residual Heat Removal (RHR) system and Containment Spray (CS) system, 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.
By letters dated May 9, 2008, (ML081360497), October 14, 2008, (ML082910295), and August 10, 2009 (ML092250226), Carolina Power & Light Company (the licensee), now doing business as Progress Energy Carolinas, Inc., provided information in response to Generic Letter (GL) 2008-01, "Managing Gas Accumulation in Emergency Core Cooling, Decay Heat Removal, and Containment Spray Systems," for the Shearon Harris Nuclear Power Plant, Unit No. 1 (HNP).
The NRC staff has reviewed the information submitted by the licensee and, based on this review, determined the following information is required to complete the evaluation.
Request 1 Please discuss the monitoring of pump operation in all modes, as well as specialized monitoring of appropriate plant parameters during shutdown operation, including reduced inventory and mid-loop operation.
Response 1 Plant operation at HNP is controlled by various operating, alarm response, abnormal, emergency and surveillance procedures. These procedures encompass the monitoring and control of pump operation during the modes of plant operation at HNP, including shutdown, reduced inventory and mid-loop operation. The operating procedures at HNP contain guidance on pump operating limits and expected operating indications in addition to guidance on pump operation in various system modes. The operating procedures contain details for placing the ECCS systems in standby alignment to ensure the pumps are operable for automatic operation. Guidance is also provided to ensure the ECCS systems are properly filled and vented following maintenance.
Other sections of the operating procedures provide guidance on how to operate and monitor the pumps during various system operating modes, e.g., RHR/LHSI system in the injection mode and shutdown cooling mode. There are operating procedures which provide specific guidance for placing the plant Reactor Coolant System (RCS) in a reduced inventory and mid-loop operation and for additional monitoring of specific plant parameters during these plant conditions.
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Enclosure to SERIAL: HNP-10-016 SHEARON HARRIS NUCLEAR POWER PLANT, UNIT NO. 1 DOCKET NO. 50-400/RENEWED LICENSE NO. NPF-63 RESPONSE TO REQUEST FOR ADDITIONAL INFORMATION RELATED TO GENERIC LETTER 2008-01 In addition to plant procedures, the operators routinely perform monitoring of plant components during all modes of plant operation. The pumps of the ECCS systems are monitored remotely by the main control room operators and locally by the auxiliary operators. Written guidance is established in the form of operator logs which direct routine monitoring of plant components and are provided for each operator watch station.
Request 2 Consistent with Section 3.7 of Reference 11, briefly discuss the plans for training at HNP that are "considered to be a necessary part of applying procedures and other activities when addressing the issue identified in the GL."
Response 2 The NRC Generic letter did not require discussion of training to satisfy the 10.CFR50.54(f) request and, therefore, none was provided in the prior HNP response. However, when any plant procedure is modified, an assessment for training needs is required in accordance with HNP procedure PRO-NGGC-0204, "Procedure Review and Approval." The determination and development of training is consistent with the systematic approach to training. If required, this training is accomplished prior to, or in parallel with, the issuance of the procedure. For fill and vent procedure revisions, the changes have generally been minor and have been considered enhancements. Procedures or work orders which direct the periodic examination of selected piping for the presence of gas were created or modified to draw upon pre-existing corporate nuclear oversight nondestructive examination procedures, which provide detailed instructions for the ultrasonic inspection of piping to verify that it is full of water.
Progress Energy Carolinas, Inc. (PEC) is an active participant in the Nuclear Energy Institute (NEI) Gas Accumulation Team, which is currently coordinating with the Institute of Nuclear Power operations (INPO) in the development of generic training modules for gas accumulation and management. These training modules target the Engineering, Operations and Maintenance disciplines. When these training modules are completed and become available to the industry, PEC will evaluate them for applicability to HNP and may implement a version tailored to meet station needs.
1 Ruland, William H., "Preliminary Assessment of Responses to Generic Letter 2008-01,
'Managing Gas Accumulation in Emergency Core Cooling, Decay Heat Removal, and Containment Spray Systems,' and Future NRC Staff Review Plans," NRC letter to James H.
Riley, Nuclear Energy Institute, ML091390637, May 28, 2009.
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