ML20057A603

Forwards Rev 6 to Procedure WMC-051, Preservation of Assets Program, Reflecting Installation of Two Desiccant Type Dehumidifiers for Controlling Relative Humidity within Reactor Auxiliary/Reactor Bldg Superstructure

ML20057A603
Person / Time
Site:	Satsop
Issue date:	09/03/1993
From:	Sorensen G WASHINGTON PUBLIC POWER SUPPLY SYSTEM
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
Shared Package
ML20057A604	List: ML20057A603
References
GO3-93-127, NUDOCS 9309150031
Download: ML20057A603 (2)

Text

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i l WASHINGTON PUBLIC POWER SUPPLY SYSTEM P.O Box 1223

• Elma, Washington 98541-1223 * (200 482-4428 i

September 3,1993 G03-93-127  !

a ,

d

i l Docket No. 50-508 j ;

U. S. Nuclear Regulatory Commission Document Control Desk [

Mail Station PI-137  ;

Washington, D. C. 20555 j '

Gentlemen:

]

Subject:

NUCLEAR PROJECT NO. 3 i WNP-3 PRESERVATION PROGRAM '

d j The Supply System has previously notified the 'NRC by - letters - GO3-90-069, dated May 11,1990, and GO3-91-073, dated May 13, 1991, of the changes ;o- the WNP-3 1

Preservation of Assets Program (WMC-051) identified through preservation experience and the ~!'

improved environment within the plant buildings.

. In order to demonstrate the site's effort to adjust the program in accordance with preservation experience and the continued improvement in the building environments, the following notable l changes have been made to the document:

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1. The Preservation Program was adjusted to reflect the installation of two desiccant type _ .

i dehumidifiers for controlling relative humidity within the Reactor- A'uxiliary/ReactorL

,: Building superstructure. The use of dehumidifiers has allowed the Project to reduce its' dependence on temperature elevation' to control relative humidity.

140053 l i

9309150031 PDR 930903 '

ADOCK 05000508 '

I PDR .

I U. S. Nuclear Regulatory Commission Page Two

, NUCLEAR PROJECT NO. 3, WNP-3 PRESERVATION PROGRAM i

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2. The frequency of visual inspection of equipment and structures was reduced l

! (Appendix A).  ;

3. The use of supplemental heat in Category II environments was reduced (Appendix A).

4. The Corrosion Monitoring Program (CMP) walkdown frequency was aajusted from every

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6 Months to annually (Appendix B).

5. The frequency of performing instrument calibration checks on the Preservation Program Sample was extended to every 2 years (Appendix D). l i

6. Appendix E, Oil and Lubricant Analysis and Trendine Durine Plant Preservation, was l issued as the fifth Appendix to WMC-051. l 8

As in the past, we have provided an uncontrolled copy of the updated document for your review.

If you have any questions or comments, please contact Mr. W. K. Drinkard, QA Manager, l Phone (206) 482-4428, Extension 5330.

Sincerely,

G. C. So/rensen, Manager Regulatory Programs  !

J WKD/cae I i

Attachment cc: Mr. W. L. Bryan, Washington Water Power Co. w/a Mr. R. E. Dyer, Portland General Electric Co. w/a j Mr. J. R. Lauckhart, Puget Sound Power & Light Co. w/a Mr. J. R. Lewis, Bonneville Power Administration w/a

, Mr. D. P. Steinberg, PacifiCorp dba Pacific Power & Light Co. w/a Ms. R. M. Jenkins, Ebasco - Elma w/o Ebasco - New York w/o Mr. M. M. Mendonca, U. S. Nuclear Regulatory Commission w/a Mr. B. N. Faulkenberry, U. S. NRC, Region V Administrator w/a Mr. N. S. Reynolds, Winston & Strawn w/a

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