ML17056A998
| ML17056A998 | |
| Person / Time | |
|---|---|
| Site: | Nine Mile Point  |
| Issue date: | 09/17/1990 |
| From: | Martin R Office of Nuclear Reactor Regulation |
| To: | Burkhardt L NIAGARA MOHAWK POWER CORP. |
| Shared Package | |
| ML17056A999 | List: |
| References | |
| GL-86-01, GL-86-1, TAC-71392, NUDOCS 9009240240 | |
| Download: ML17056A998 (8) | |
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Docket No. 50-220 UNITEDSTATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D. C. 20555 September 17, 1990 Mr. Lawrence Burkhardt III Executive Vice President, Nuclear Operations Niagara Mohawk Power Corporation 301 Plainfield Road
- Syracuse, New York 13212
Dear Mr. Burkhardt:
SUBJECT:
RESPONSE
TO GENERIC LETTER 86-01, "SAFETY CONCERNS ASSOCIATED WITH PIPE BREAKS IN THE BWR SCRAM SYSTEM".
NINE MILE POINT UNIT 1 (TAC NO. 71392)
The Nuclear Regulatory Commission's Generic Letter 86-01 transmitted the staff's Safety Evaluation Report regarding the integrity of BWR scram discharge piping systems.
The staff report endorsed the Boiling Water Reactor Owners Group letter (BWROG-8420) regarding periodic visual verification of the scram system piping integrity.
BWROG-8420 recommended that licensees of plants with ASME Code Class 2 scram discharge volume piping perform an additional inspection once per refueling cycle consisting of a post-scram walkdown of the piping.
BWROG-8420 also recommended that each utility individually evaluate and endor se the group position.
By letter dated December 15, 1986, Niagara Mohawk Power Corporation (NMPC) proposed to replace the post-scram walkdown inspection described in BWROG-8420 with a hydrostatic test in accordance with the ASME Code Section XI 1983 Edition, Sumer 1983 Addenda, IWA-5000 and IWC-5000, for Nine Mile Point Unit 1.
In response to the staff's request for the bases for not performing a
post-scram inspection as recommended in BWROG-8420 and justification to show that the hydrostatic test is equivalent to a post-scram walkdown inspection in detecting piping system leakage, NMPC provided the necessary information by letter dated April 2, 1990.
The staff has reviewed this response and on the basis of its review, concludes that NMPC has provided adequate justification to 1'005'240240 900917 PDR ADCCK 05000220 P
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Mr. Lawrence Bur khardt 2
perform a hydrostatic test in lieu of a post-scram walkdown.
The proposed hydrostatic test therefore satisfies the staff position in Generic Letter 86-01 regarding the scram system piping integrity.
This completes our review
,of activities associated with TAC No. 71392.
Sincerely,
Enclosure:
Safety Evaluation cc w/enclosure:
See next page Robert E. Martin, Senior Project Manager Project Directorate I-I Division of Reactor Projects - I/II Office of Nuclear Reactor Regulation
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'r. L. 'Burkhardt III
'N.iagaPa Mohawk Power Corporation Nine Mile P Nuclear Station, Unit No.
1 CC:
Mr. Mark J. Wetterhahn, Esquire
- Bishop, Cook, Purcell 5 Reynolds 1400 L. Street, N.W.
Washington, D. C.
20005-3502 Supervisor Town of Scriba R. D. 84
- Oswego, New York 13126 Mr. Joseph F. Firlit General Supt.-Nuclear Generation Niagara Mohawk Power Corporation Nine Mile Point Nuclear Station Post Office Box 32
- Lycoming, New York 13093 Resident Inspector U. S. Nuclear Regulatory Commission Post Office Box 126
- Lycoming, New York 13093 Mr. Gary D. Wilson, Esquire Niagara Mohawk Power Corporation 300 Erie Boulevard West
- Syracuse, New York 13202 Regional Administrator, Region I U. S. Nuclear Regulatory Commission 475 Allendale Road King of Prussia, Pennsylvania 19406 Ms. Donna Ross New York State Energy Office 2 Empire State Plaza 16th Floor
- Albany, New York 12223 Mr. Kim Dahlberg Unit 1 Station Superintendent Nine Mile Point Nuclear Station Post Office Box 32
- Lycoming, New York 13093 Mr. Peter E. Francisco, Licensing Niagara Mohawk Power Corporation 301 Plainfield Road
- Syracuse, New York 13212 Charlie Donaldson, Esquire Assistant Attorney General New York Department of Law 120 Broadway New York, New York 10271 Mr. Paul D. Eddy State of New York Department of Public Service Power Division, System Operations 3 Empire State Plaza
- Albany, New York 12223
Mr. Lawrence Burkhardt perform a hydrostatic test in lieu of a post-scram walkdown.
The proposed hydrostatic test therefore satisfies the staff position in Generic Letter 86-01 regarding the scram system piping integrity.
This completes our review of acti vities associated with TAC No. 71392.
Sincerely,
Enclosure:
Safety Evaluation cc w/enclosure:
See next page Original signed by:
Daniele Oudinot for Robert E. Martin, Senior Project Manager Project Directorate I-1 Division of Reactor Projects - I/II Office of Nuclear Reactor Regulation Distribution:
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