ML20134A010
| ML20134A010 | |
| Person / Time | |
|---|---|
| Site: | Millstone  |
| Issue date: | 01/23/1997 |
| From: | Mckee P NRC (Affiliation Not Assigned) |
| To: | Kenyon B NORTHEAST UTILITIES SERVICE CO. |
| Shared Package | |
| ML20134A012 | List: |
| References | |
| TAC-M94157, NUDOCS 9701280130 | |
| Download: ML20134A010 (5) | |
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UNITED STATES g
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,j NUCLEAR REGULATORY COMMISSION
's WASHINGTON, D.C. 20665-0001 Ok.....[
January 23, 1997 Mr. B. D. Kenyon President - Nuclear Group Northeast Utilities Service Group c/o Mr. Terry L. Harpster Director - Nuclear Licensing Services P. O. Box 128 Waterford, CT 06385 4
SUBJECT:
MILLSTONE NUCLEAR POWER STATION, UNIT 3 - EVALUATION OF SERVICE WATER NON-CODE REPAIR AT MILLSTONE UNIT 3 (TAC N0. M94157) dear Mr. Kenyon:
By letters dated November 20, 1995, and July 23, 1996, Northeast Nuclear Energy Company (NNECO) proposed a non-Code repair by applying an epoxy-based coating to the pitting areas of the service water discharge pipes, and requested NRC's approval to credit the concrete encasement for satisfying the pressure retaining requirements of Article ND-3640 in Section III of the ASME Code.
The staff has reviewed your proposed alternatives to the ASME Code requirements.
The alternatives consist of applying epoxy-based coating to all the eroded areas, inspecting the affected service water piping during each refueling outage and during any planned or unplanned outage of gceater than 6 weeks duration, monitoring the inside of the discharge tunnel during every other future planned refueling outage, and crediting the service water concrete encasement as a pressure retaining structure to satisfy the requirements of the ASME Code.
Further, you stated that the affected pipes are encased in concrete and excavation and replacement of the encasement would be required to meet the Code.
Because the proposed alternatives provide reasonable assurance of structural integrity, the NRC has determined that compliance with the Code would result in hardship or unusual difficulty without a compensating increase in the level of quality and safety. The enclosed safety evaluation provides the NRC staff's review.
Therefore, pursuant to 10 CFR 50.55a(a)(3)(ii), the NRC concludes that the proposed alternatives are acceptable, provide an acceptable level of quality and safety in lieu of the Code requirements and are authorized.
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280.003 9701280130 970123 PDR ADOCK 05000423 P
1 Mr. B. D. Kenyon,
Please contact James W. Andersen'at (301) 415-1437 if you have any questions regarding this matter.
Sincerely, p*<
a Phillip F.McKee Deputy Director for Licensing Special Projects Off ce Office of Nuclear Reactor Regulation
. Docket No. 50-423
Enclosure:
Safety Evaluation cc w/ enc 1:
See next page i
i
Please cont'actJJames W. Andersen ht (301)'415-1437 if you have any questions regarding this' matter.
e Sincerely,1
' Original signed by:
Phillip F. McKee Deputy Director for Licensing Special. Projects Office Office of Nuclear Reactor Regulation Docket No. 50-423
Enclosure:
Safety Evaluation cc w/ encl:
See next page DISTRIBUTION:
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Northeast Utilities Service Company Millstone Nuclear Power Station Unit 3 cc:
Lillisn M. Cuoco, Esq.
Mr. M. R. Scully, Executive Director Senior Nuclear Counsel Connecticut Municipal Electric Northeast Utilities Service Company Energy Cooperative P.O. Box 270 30 Stott Avenue Hartford, CT 06141-0270 Norwich, CT 06360 Mr. Kevin T. A. McCarthy, Director Mr. William D. Meinert Monitoring and Radiation Division Nuclear Engineer Department of Environmental Protection Massachusetts Municipal Wholesale 79 Elm Street Electric Company Hartford, CT 06106-5127 P.O. Box 426 Ludlow, MA 01056 Mr. Allan Johanson, Assistant Director Office of Policy and Management Joseph R. Egan, Esq.
Policy Development and Planning Division Egan & Associates, P.C.
80 Washington Street 2300 N Street, NW Hartford, CT 06106 Washington, D.C. 20037 Regional Administrator Mr. F. C. Rothen Region I Vice President - Work Services U.S. Nuclear Regulatory Commission Northeast Utilities Service Company 475 Allendale Road P.O. Box 128 King of Prussia, PA 19406 Waterford, CT 06385 First Selectmen Mr. Ernest C. Hadley, Esq.
Town of Waterford 1040 B Main Street Hall of Records P.O. Box 549 200 Boston Post Road West Wareham, MA 02576 Waterford, CT 06385 Mr. John Buckingham Mr. Wayne D. Lanning Department of Public Utility Control Deputy Director for Inspections Electric Unit Millstone Nuclear Power Station 10 Liberty Square c/o U.S. Nuclear Regulatory Commission New Britain, CT 06051 P.O. Box 513 Niantic, CT 06357 Mr. James S. Robinson Manager, Nucler Investments and M. H. Brothers, Nuclear Unit Director Administration Millstone Unit No. 3 New England Power Company Northeast Nuclear Energy Company 25 Research Drive P,0. Box 126 Westborough, MA 01582 Waterford, CT 063B5 Mr. T. C. Feigenbaum Burlington Electric Department Executive Vice President c/o Robert E. Fletcher, Esq.
and Chief Nuclear Officer 271 South Union Street Northeast Utilities Service Company Burlington, VT 05402 P.O. Box 128 Waterford, CT 06385
Northeast Utilities Service Company Millstone Nuclea:,ower Station Unit 3 I
cc:
Mr. D. M. Goebel Vice President - Nuclear Oversight-Northeast Utilities Service Company P.O. Box 128 Waterford, CT.06385 Mr. J. P. Cowan Millstone Unit No. 3 Nuclear Recovery Officer Northeast Utilities Service Company P.O. Box 128 Waterford, CT 06385 Mr. J. K. Thayer Recovery Officer, Nuclear Engineering and Support Northeast Utilities Service Company P.O.. Box 128 Waterford,'CT 06385 Deborah Katz, President Citizens Awareness Network P.O. Box 83 Shelburne Falls, MA 03170
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