ML19259D233

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Forwards Request for Addl Info Re Containment Purge & Vent Sys to Continue Review
ML19259D233
Person / Time
Site: Prairie Island  Xcel Energy icon.png
Issue date: 10/01/1979
From: Lainas G
Office of Nuclear Reactor Regulation
To: Schwencer A
Office of Nuclear Reactor Regulation
References
NUDOCS 7910170410
Download: ML19259D233 (3)


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UNITED STATES E'

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C W ASHING TON, D. C. 20555 o

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\\v f OCT 11979 MEMORA*4DUM FOR:

A. Schwencer, Chief, Operating Reactors Branch #1, D0R FRON:

G. Lainas, Chief, Plant Systems Branch, D0R

SUBJECT:

REQUEST FOR ADDITIONAL INFORMATION - CONTAINMENT PURGE SYSTEM - PRAIRIE ISLAND NUCLEAR STATION, UNITS 1 AND 2 -

(TACS 10156 AND 11330)

REFERENCES:

1.

Letter to Director of Nuclear Reactor Regulation from L. O. Mayer, " Containment Purging During Normal Plant Operation," dated January 5,1979.

2.

Letter to Director of Nuclear Reactor Regulation from L. O. Mayer, " Containment Purging During Nonnal Plant Operation," dated April 12, 1979.

3.

Letter to J. Keppler from F. P. Tierney, Jr.,

" Reportable Occurrence No. 79-19," dated June 7,1979.

4.

Letter to J. Keppler from L. O. Mayer, " Discovery that Containment Purge Valves not Analyzed for Dynamic Loading," dated June 20, 1979.

5.

Letter to Director of Nuclear Reactor Regulation from L. O. Mayer, " Supplemental Information -

Containment Purging During Normal Operation,"

dated July 10, 1979.

Plant Name:

Prairie Island Nuclear Generai.ing Plant Units 1 and 2 Docket Nos.:

50-282 and 50-306 Project Manager:

M. Grotenhuis Review Status:

Awaiting Infonnation With regard to the containment purge and vent system at the Prc..cie Island Nuclear Generating Plant, l'aits 1 and 2, the licensee plans to justify unlimited purging (Refer:nce 1). The Plant Systems Branch, Section B, l

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OCT 1 1979

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after having reviewed the documents filed by the licensee (References 1 through 5), has prepared the enclosed request for additional information.

PSB, Section A is continuing its review of the electrical aspects of the matter and is scheduled to provide you with conments by November 1979.

~ov-G.Lfinas, Chief Plant Systems Branch Division of Operating Reactors

Enclosure:

As stated

Contact:

J. Kerrigan/D. Shum X-28129/X-27058 cc w/ enclosure:

D. Eisenhut B. Grimes W. Gammill L. Nichols G. Lainas E. Reeves E. Adensam D. Tondi M. Grotenhuis D. Shum J. Kerrigan J.T. Beard G. Knighton V. Noonan F. Witt 3 4 l

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ENCLOSURE REQUEST FOR ADDITIONAL INFORMATION

,0N THE CONTAINMENT PURGE SYSTEM FOR PRAIRIE ISLAND NUCLEAR STATION, UNITS 1 AND 2 DOCKET NOS.: 50-282, 50-306 Provide a description of the containment purge / vent system, demonstrating that the design of this system satisfies the requirements of the NRC Branch Technical Position CSB 6-4, Rev.1, " Containment Purging During Nonn31 Plar.t Operation." Your response should address each paragraph and sub-paragraph of the Branch Technical Position, with the exception of sub-paragraphs if, Sa, and 5c which were addressed in your submittal dated April 12,1979.

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