ML15238A166
| ML15238A166 | |
| Person / Time | |
|---|---|
| Site: | Oconee, Mcguire, Catawba, McGuire  |
| Issue date: | 11/03/1995 |
| From: | Berkow H NRC (Affiliation Not Assigned) |
| To: | Tuckman M DUKE POWER CO. |
| References | |
| GL-95-07, GL-95-7, TAC-M93446, TAC-M93447, TAC-M93482, TAC-M93483, TAC-M93492, TAC-M93493, TAC-M93494, NUDOCS 9511080030 | |
| Download: ML15238A166 (6) | |
Text
UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20555-)001 November 3, 1995 Mr. M. S. Tuckman Senior Vice President Nuclear Generation Duke Power Company P. 0. Box 1006 Charlotte, North Carolina 28201
SUBJECT:
RESPONSE TO GENERIC LETTER 95-07, PRESSURE LOCKING AND THERMAL BINDING OF SAFETY-RELATED POWER-OPERATED GATE VALVES, CATAWBA NUCLEAR STATION, UNITS 1 AND 2; McGUIRE NUCLEAR STATION, UNITS 1 AND 2; AND OCONEE NUCLEAR STATION, UNITS 1, 2 AND 3, TAC NOS. M93446, M93447, M93482, M93483, M93492, M93493, AND M93494)
Dear Mr. Tuckman:
On August 17, 1995, the NRC issued Generic Letter (GL) 95-07, "Pressure Locking and Thermal Binding of Safety-Related Power-Operated Gate Valves."
This GL requested certain actions on a 90-day and 180-day schedule and a response within 60 days indicating the licensee's intended actions regarding the requested actions. By letter dated October 16, 1995, Duke Power Company submitted its 60-day response to GL 95-07 for McGuire Nuclear Station, Units 1 and 2, Catawba Nuclear Station, Units 1 and 2, and Oconee Nuclear Station, Units 1, 2, and 3. In its response, Duke Power stated that it intends to waive the 90-day requested actions of GL 95-07, but that the overall intent of a timely response to the concerns documented in GL 95-07 will be met within the 180-day schedule. Duke Power states that it does not plan to meet the 90-day requested actions of GL 95-07 because of the lack of generally accepted industry screening criteria, the fact that the number of valves requiring evaluation per unit at Duke Power is significantly greater than the industry average, and the inefficiencies in performing interim operability evaluations on valves that are only potentially susceptible to pressure locking or thermal binding.
In its 60-day response to GL 95-07, Duke Power proposed an alternative course of action. However, Duke Power has not provided the safety basis for determining the acceptability of this planned alternative course of action, as requested by the GL. The staff established the recommended actions for the 90-day screening evaluation in GL 95-07 to provide confidence that no short term safety concerns exist regarding particular valves as a result of pressure locking and thermal binding. The purpose of this action is for licensees to ensure that no critical deficiencies exist in past evaluations, and take action if appropriate. The essence of the 90-day screening evaluation is to conduct an initial assessment, using current knowledge, of all safety-related power-operated gate valves to assure they are operable should they be potentially susceptible to pressure locking or thermal binding.
95110810030 9511377----
PDR ADOCK 05000269 P
Mr. M. November 3, 1995 The staff considers a prompt screening evaluation to be reasonable considering the length of time the industry has been aware of and had opportunity to take action for situations involving pressure locking and thermal binding. As described in GL 95-07, the staff has provided several notifications of this issue in the past 2 years. Additionally, notifications from the Institute for Nuclear Power Operations (INPO) include Significant Operating Experience Report 84-7, "Pressure Locking and Thermal Binding of Gate Valves," dated December 14, 1984, and INPO Significant Event Report 8-88, "Pressure Locking of Residual Heat Removal Gate Valves," dated March 25, 1988.
Based on our review, we do not find Duke Power's submittal to be fully responsive. In light of recent industry events involving pressure locking and thermal binding of safety-related power-operated gate valves, we conclude that the decision to-waive the 90-day requested actions of GL.95-07 does not allow Duke Power to assure itself of the current operability of these valves.
Therefore, Duke Power Company is requested to commit to the 90-day requested actions of GL 95-07 or provide the safety basis for determining the acceptability of the planned alternative course of action by November 15, 1995. Should you have any questions on this matter, please contact the appropriate Office of Nuclear Reactor Regulation (NRR) project manager.
The information requested by this letter is within the scope of the overall burden estimated in GL 95-07, which was a maximum of 75 hours8.680556e-4 days <br />0.0208 hours <br />1.240079e-4 weeks <br />2.85375e-5 months <br /> per response.
This request is covered by the Office of Management and Budget Clearance Number 3150-0011, which expires July 31, 1997.
Sincerely,
/s/ BY R.E.MARTIN f/
Herbert N. Berkow, Director Project Directorate 11-2 Division of Reactor Projects I/II Office of Nuclear Reactor Regulation Docket Nos.
50-413,, 50-414, 50-369,50-37Q, 50-269, 50-270, and 50-287 cc: See next page DISTRIBUTION CDocket. File J IPUBLIC
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.J.Zwolinski R.Zimmerman S.Varga QGC 0 R.Wessman ACRS R.Crleniak RI R.Eaton E.Merschoff,RII V.Nerses DOCUMENT NAME: G:\\GL9507.LTR OFFICE DRPEPD22/L D
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NAME L.BERRY T
DATE 1 V
/95 11/_3/95 11/
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NO YE NO NO OFFICTAL RECORD COPY--,
Mr. M. November 3, 1995 The staff considers a prompt screening evaluation to be reasonable considering the length of time the industry has been aware of and had opportunity to take action for situations involving pressure locking and thermal binding. As described in GL 95-07, the staff has provided several notifications of this issue in the past 2 years. Additionally, notifications from the Institute for Nuclear Power Operations (INPO) include Significant Operating Experience Report 84-7, "Pressure Locking and Thermal Binding of Gate Valves," dated December 14, 1984, and INPO Significant Event Report 8-88, "Pressure Locking of Residual Heat Removal Gate Valves," dated March 25, 1988.
Based on our review, we do not find Duke Power's submittal to be fully responsive. In light of recent industry events involving pressure locking and thermal binding of safety-related power-operated gate valves, we conclude that the decision to waive the 90-day requested actions of GL 95-07 does not allow Duke Power to assure itself of the current operability of these valves.
Therefore, Duke Power Company is requested to commit to the 90-day requested actions of GL 95-07 or provide the safety basis for determining the acceptability of the planned alternative course of action by November 15, 1995. Should you have any questions on this matter, please contact the appropriate Office of Nuclear Reactor Regulation (NRR) project manager.
The information requested by this letter is within the scope of the overall burden estimated in GL 95-07, which was a maximum of 75 hours8.680556e-4 days <br />0.0208 hours <br />1.240079e-4 weeks <br />2.85375e-5 months <br /> per response.
This request is covered by the Office of Management and Budget Clearance Number 3150-0011, which expires July 31, 1997.
Sincerely,
/s/
BY R.E.MARTIN f/
Herbert N. Berkow, Director Project Directorate 11-2 Division of Reactor Projects -
I/II Office of Nuclear Reactor Regulation Docket Nos. 50-413, 50-414, 50-369, 50-370, 50-269, 50-270, and 50-287 cc: See next page DISTRIBUTION Docket File PUBLIC L.Wiens PDII-2 Reading J.Zwolinski R.Zimmerman S.Varga OGC R.Wessman ACRS R.Crlenjak,RII R.Eaton E.Merschoff,RII V.Nerses DOCUMENT NAME: G:\\GL9507.LTR OFFICE DRPE/PD22/L DRP/PDUAPM DRPPD22/
NAME L.BERRY R
DATE 1
/95 11/
/95 11/
/95 COPY YES NO NO YE NO OFFICTAL RECORD COPY
Mr. M. S. Tuckman 2 -
November 3, 1995 The staff considers a prompt screening evaluation to be reasonable considering the length of time the industry has been aware of and had opportunity to take action for situations involving pressure locking and thermal binding. As described in GL 95-07, the staff has provided several notifications of this issue in the past 2 years. Additionally, notifications from the Institute for Nuclear Power Operations (INPO) include Significant Operating Experience Report 84-7, "Pressure Locking and Thermal Binding of Gate Valves," dated December 14, 1984, and INPO Significant Event Report 8-88, "Pressure Locking of Residual Heat Removal Gate Valves," dated March 25, 1988.
Based on our review, we do not find Duke Power's submittal to be fully responsive. In light of recent industry events involving pressure locking and thermal binding of safety-related power-operated gate valves, we conclude that the decision to waive the 90-day requested actions of GL 95-07 does not allow Duke Power to assure itself of the current operability of these valves.
Therefore, Duke Power Company is requested to commit to the 90-day requested actions of GL 95-07 or provide the safety basis for determining the acceptability of the planned alternative course of action by November 15, 1995. Should you have any questions on this matter, please contact the appropriate Office of Nuclear Reactor Regulation (NRR) project manager.
The information requested by this letter is within the scope of the overall burden estimated in GL 95-07, which was a maximum of 75 hours8.680556e-4 days <br />0.0208 hours <br />1.240079e-4 weeks <br />2.85375e-5 months <br /> per response.
This request is covered by the Office of Management and Budget Clearance Number 3150-0011, which expires July 31, 1997.
Sincerely, erbert N. Berkow, Director Project Directorate 11-2 Division of Reactor Projects -
I/II Office of Nuclear Reactor Regulation Docket Nos. 50-413, 50-414, 50-369, 50-370, and 50-269, 50-270, 50-287 cc: See next page
Duke Power Company Catawba Nuclear Station McGuire Nuclear Station Oconee Nuclear Station cc:
Dr. John M. Barry Mr. Ed Burchfield Mecklenburg County Compliance Department of Environmental Duke Power Company Protection Oconee Nuclear Site 700 N Tryon Street P. 0. Box 1439 Charlotte, North Carolina 29202 Seneca, South Carolina 29679 County Manager of Mecklenburg County Mr. Robert B. Borsum 720 East Fourth Street Babcock & Wilcox Charlotte, North Carolina 28202 Nuclear Power Division Suite 525 Mr. J. E. Snyder 1700 Rockville Pike Regulatory Compliance Manager Rockville, Maryland 20852 Duke Power Company McGuire Nuclear Site Manager, LIS 12700 Hagers Ferry Road NUS Corporation Huntersville, North Carolina 28078 2650 McCormick Drive, 3rd Floor Clearwater, Florida 34619-1035 Senior Resident Inspector c/o U.S. Nuclear Regulatory Senior Resident Inspector Commission U.S. Nuclear Regulatory Commission 12700 Hagers Ferry Road Route 2, Box 610 Huntersville, North Carolina 28078 Seneca, South Carolina 29678 Mr. Dayne H. Brown, Director Mr. W. R. McCollum Department of Environmental Site Vice President Health and Natural Resources Catawba Nuclear Station Division of Radiation Protection Duke Power Company P. 0. Box 27687 4800 Concord Road Raleigh, North Carolina 27611 York, South Carolina 29745 County Supervisor of Oconee County Mr. T. C. McMeekin Walhalla, South Carolina 27621 Vice President, McGuire Site Duke Power Company Mr. J. W. Hampton 12700 Hagers Ferry Road Vice President, Oconee Site Huntersville, North Carolina 28078 Duke Power Company P. 0. Box 1439 Elaine Wathen, Lead REP Planner Seneca, South Carolina 29679 Division of Emergency Management 116 West Jones Street Raleigh, North Carolina 27603-1335
Duke Power Company Catawba Nuclear Station McGuire Nuclear Station Oconee Nuclear Station cc:
Mr. Z. L. Taylor Regulatory Compliance Manager North Carolina Electric Membership Duke Power Company Corporation 4800 Concord Road P. 0. Box 27306 York, South Carolina 29745 Raleigh, North Carolina 27611 A. V. Carr, Esquire Saluda River Electric Cooperative, Duke Power Company Inc.
422 South Church Street P. 0. Box 929 Charlotte, North Carolina 28242 Laurens, South Carolina 29360 J. Michael McGarry, III, Esquire Senior Resident Inspector Winston and Strawn 4830 Concord Road 1400 L Street,,NW.
York, South Carolina 29745 Washington, DC 20005 Regional Administrator, Region II North Carolina Municipal Power U.S. Nuclear Regulatory Commission Agency Number 1 101 Marietta Street, NW Suite 2900 1427 Meadowwood Boulevard Atlanta, Georgia 30323 P. 0. Box 29513 Raleigh, North Carolina 27626 Max Batavia, Chief Bureau of Radiological Health Mr. Peter R. Harden, IV South Carolina Department of Health Account Sales Manager and Environmental Control Westinghouse Electric Corporation 2600 Bull Street Power Systems Field Sales Columbia, South Carolina 29201 P. 0. Box 7288 Charlotte, North Carolina 28241 Ms. Karen E. Long Assistant Attorney General County Manager of York County North Carolina Department of Justice York County Courthouse P. 0. Box 629 York, South Carolina 29745 Raleigh, North Carolina 27602 Richard P. Wilson, Esquire Mr. G. A. Copp Assistant Attorney General Licensing -
ECO50 S.C. Attorney General's Office Duke Power Company P. 0. Box 11549 526 South Church Street Columbia, South Carolina 29211 Charlotte, North Carolina 28242-0001 Piedmont Municipal Power Agency 121 Village Drive Greer, South Carolina 29651