ML17056A573

Requests That Util Provide Reasons for Not Performing post- Scram Insp,Per & Justification to Show That hydro-test Equivalent to post-scram Walkdown Insp in Detecting Scram Discharge Vol Piping Sys Leakage

ML17056A573
Person / Time
Site:	Nine Mile Point
Issue date:	01/22/1990
From:	Martin R Office of Nuclear Reactor Regulation
To:	Burkhardt L NIAGARA MOHAWK POWER CORP.
References
GL-86-01, GL-86-1, TAC-71392, NUDOCS 9001290145
Download: ML17056A573 (4)

Text

Docket. No. 50-220 Mr. Lawrence Burkhardt, III Executive Vice President, Nuclear Operations Niagara Mohawk Power Corporation 301 Plainfield Road

Syracuse, New York 13212 january 22, 1990

SUBJECT:

GENERIC LETTER 86-01, SCRAM SYSTEM PIPING (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 (BWROG) letter (BWROG-8420) regarding periodic visual verification of the scram system piping integrity.

BWROG-8420 recommends that plants with 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 states that each utility would separately evaluate and endorse the group position.

By letter dated December 15, 1986, Niagara Mohawk Power Corporation (the licensee) proposed to replace the post-scram walkdown inspection described in BWROG-8420 by a hydro test in accordance with the ASME Code Section XI 1983

Edition, Summer 1983 Addenda, IWA 5000 and IWC 5000.

This hydro test is to be performed during each refueling outage.

We request that the following additional information be provided: (I) Please provide the reasons for not performing a post-scram inspection as recommended in BWROG-8420.

(2) Provide justification to show that the hydro test is equivalent to a post-scram walkdown inspection in detecting SDV piping system leakage.

This letter confirms a request for information made to your staff in August 1989.

Please respond with your schedule and plans for dispositioning this issue.

This request for information affects fewer than 10 respondents; therefore, OMB clearance is not required under Public Law 96-511.

S incerely, ORIGJNAL SIGNED BYi" Robert E. Martin, Senior Project Manage Project Directorate I-1 Division of Reactor Projects - I/II Office of Nuclear Reactor Regulation cc:

See next page DISTRIBUTION NRC 8 Local PDRs PDI-I Rdg.

S.

Varga B. Boger R. Capra C.

Vogan R. Martin LA:PDI-l,)

CVogan V'/

18/90 in/bah 1//0/90 M

C eng

/

/90 900i290i45 900i22 POR ADOCK 05000220 P

PDC C.Y.Cheng JL invi 1 1 e OGC E. Jordan B. Grimes ACRS (IO)

D:PDI-1 RCapra I/g2/90

[GL 86-01 LTR]

r

\\ r I

r I

e f

1 I

'I

~ "I 1

It I

I 1

lf

't I'

lf e"

~ II I

ff I

\\

e 11

',le"f I ti t

I' Ie t

'I I

'fit I

I

'I II f

n 1

II I

h e,f I

I p I e ft! If e et I 1

I I 1 1

I' I I 1

lt

~

I t'

I r

ef' t

ee l

I" I

1ff I

t t I

'I I e

I I

fr I

lf I

l le r

e I

r~ i" Mr. Lawrence Burkhardt III Niagara Mohawk Power Corporation Nine Mile Point Nuclear Station, Unit No. I CC:

Hr. Troy B. Conner, Jr., Esquire Conner 8 Wetterhahn Suite 1050 1747 Pennsylvania

Avenue, N.

W.

Washington, D. C.

20006 Mr. Frank R. Church, Supervisor Town of Scriba R. D. 82

Oswego, New York 13126 Mr. James L. Willis Genera 1 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 F loor

Albany, New York 12223 Hr. Kim A. 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 New York State Public Service Commission 9th Floor 3 Empire State Plaza

Albany, New York 12223

r ~l l

I si,