ML17054B015

Forwards Request for Addl Info Re IE Bulletin 80-11 Concerning Masonry Wall Evaluation Program.In Order to Support Review Schedule for multi-plant Activity,Info Requested within 45 Days of Ltr Receipt

ML17054B015
Person / Time
Site:	Nine Mile Point
Issue date:	09/07/1984
From:	Vassallo D Office of Nuclear Reactor Regulation
To:	Hooten B NIAGARA MOHAWK POWER CORP.
References
IEB-80-11, NUDOCS 8409200308
Download: ML17054B015 (6)

Text

September 7, 1984 Docket No. 50-220 Mr. B.

G. Hooten Executive Director, Nuclear Operations Niagara Mohawk Power Corporation 300 Erie Boulevard West

Syracuse, New York 13202

Dear Mr. Hooten:

DISTRIBUTION Local PDR DEisenhut RHermann JNGrace Gray File CTrammell WShields NRC PDR ORB¹2 Rdg SNorris ELJordan ACRS (10)

NChokski KWickman QELD

SUBJECT:

REQUEST FOR ADDITIONAL INFORMATION - IE BULLETIN 80-11, MASONRY WALL EVALUATION PROGRAM Re:

Nine Mile Point Nuclear Station, Unit No.

1 Reference is made to your submittal" dated June 24, 1983 which provided your design criteria for reanalysis of masonry walls.

The information was reviewed by our staff and we find that the items identified in the enclosure are required to complete our review.

In order to support our review schedule for this multi-plant activity, you are requested to provide the information within 45 days of the date of receipt of this letter.

The reporting and/or recordkeeping requirements contained in this letter affect fewer than ten respondents; therefore, OMB clearance is not required under P.L.96-511.

Sincerely, gt i,gi;nial s,jgned 'g guet mann fqrf

Enclosure:

As stated cc w/enclosure:

See next page Domenic B. Vassallo, Chief Operating Reactors Branch ¹2 Division of Licensing DL:ORB¹2 DL:Qg3¹2 DL:Og¹2 SNor

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Mr. B. G. Hooten Niagara Mohawk Power Corporation Wine Mile Point Nuclear Station, Unit No.

1 CC:

Troy B. Conner, Jr.,

Esquire Conner 5 Wetterhahn Suite 1050 1747 Pennsylvania

Avenue, N.

W.

Washington, D. C.

20006 Robert P. Jones, Supervisor Town of Scriba R.

D. ¹4

Oswego, New York 13126 Niagara Mohawk Power Corporation ATTN:

Mr. Thomas Perkins Plant Superintendent Nine Mile Point Nuclear Station Post Office Box 32

Lycoming, New York 13093 U. S. Environmental Protection Agency Region II Office Regional Radiation Representative 26 Federal Plaza New York, New York 10007 Resident Inspector U. S. Nuclear Regulatory Commission Post Office Box 126

Lycoming, New York 13093 John W. Keib, Esquire Niagara Mohawk Power Corporation 300 Erie Boulevard West

Syracuse, New York 13202 Thomas A. Murley Regional Administrator Region I Office U. S. Nuclear Regulatory Commission

, 631 Park Avenue King of Prussia, Pennsylvania 19406 Mr. Jay Dunkleberger Division of Policy Analysis and Planning New York State Energy Office Agency Building 2 Empire State Plaza

Albany, New York 12223

Enc'1osure Request for Additional Information Nine Mi.le Point Unit 1

Docket'o.

50-220 Masonry Mall Review, IE Bulletin 80-11 Nith regard to the licensee's proposed criteria for performance of "leak-before-break" analyses (Ref. 1), the staff has noted the following concern and ensuing need for additional information.

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Current 'limitations op the application of leak-before-break analyses exclude piping systems or portions thereof that are particularly susceptible to intergranular stress.corrosTb>.;cracking (IGSCC), water-hammer or fatigue.

Of the systems identified for evaluation,. parts of the emergency condenser and reactor water cleanup systems may fall within the limitations.

Specifically, is the reactor water cleanup system subject to IGSCC~and does the emergency condenser system have a history of water-hammer occurrences?

~ 4

'.If the answers are affirmative, the following questions also apply.

Have system modifications and piping replacements been ma'de to mitigate or eliminate these problems?

Do systems operating conditions preclude these mechanisms from acting on certain portions of these systems?

Reference l.

"Design Criteria for the Reanalysis of Safety Related Masonry Walls at NMP-1", June 1983 (attached to a letter from C.

V.

Nangan of Niagara Mohawk Corporation to.D. Vassallo of NRC, dated June

24. 1983).

J