ML19330B086

From kanterella
Jump to navigation Jump to search
Responds to IE Bulletin 80-05 Re Damage to Chemical Vol Control Sys Tanks.Tanks Adequately Protected Against Vacuum Damage.Holdup Tanks Equipped W/Vacuum Breakers.Equipment Drain Tank Designed for Full Vacuum W/Nitrogen Cover Gas
ML19330B086
Person / Time
Site: Satsop
Issue date: 06/12/1980
From: Renberger D
WASHINGTON PUBLIC POWER SUPPLY SYSTEM
To: Engelken R
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION V)
References
ELE-GCS-80-176, IEB-80-05, IEB-80-5, NUDOCS 8007300306
Download: ML19330B086 (2)


Text

-

i W

P W shington Public Power Supply System A JOINT OPERATING AGENCY S -

P. O. Box 9 68 3000Cao wasMi=Grom War Ric M L a m o WasMiscrom 99351' ' PMoNE (509) 375 SOOO

./

h June 12, 1980 l-ll IV rOyrg .\

ELE-GCS-80-176 y -,.?g k qv; .\ I.-Q

,a Docket Nos. 50-508 y /[/

and 50-509 W??(j;T -

ilh{,L

'&g; WP f '

Mr. R. H. Engelken, Director

u. , s ; d'Q Office of Inspection and Enforcement U.S. Nuclear Regulatory Commission 1990 N. California Boulevard Suite 202, Walnut Creek Plaza Walnut Creek, CA 04596

Subject:

WPPSS NUCLEAR PROJECTS 3 AND 5--

RESPONSE TO IE BULLETIN 80-05

Dear Mr. Engelken:

The subject IE Bulletin which addresses, " Vacuum Conditions Resulting in Damage to Chemical Volume Control System (CVCS)

Tanks," has been reviewed for application to WNP-3/S.

It has been determined that all tanks in the CVCS are adequately protected against vacuum damage as follows:

1) The hold up tanks are equipped with vacuum breakers (one per +.ank) .
2) The equipment drain tank is designed for full vacuum and also contains a nitrogen cover gas.
3) The Volume Control tank is maintained above atmospheric pressure even at tank low level trip point.

We are presently reviewing the design of all tanks and com-oonents in the radwaste system. The results of this study will be available in approximately four (4) months.

8007800 3GG 36- 2D

a

' Mr. R. H. Engelken

~

Page 2 June 1980 Should you have any questions regarding our resoonse, please notify me.

Very truly yours, Y

D. L. REfBERGER Assistant Director Technology DLR:GCS:crw cc: Director, NRC Office of Inspection and Enforcement Mr. Bill Woods, NUS Carporation l

I I

.