ML20154M796

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Forwards Safety Evaluation Supporting 850208 Proposal to Install Check Valves to Improve Capability to Isolate Containment Atmosphere from Environ,In Response to 841005 Insp Rept 50-409/84-09
ML20154M796
Person / Time
Site: La Crosse File:Dairyland Power Cooperative icon.png
Issue date: 03/10/1986
From: Zwolinski J
Office of Nuclear Reactor Regulation
To: Taylor J
DAIRYLAND POWER COOPERATIVE
Shared Package
ML20154M800 List:
References
TAC-56955, NUDOCS 8603140487
Download: ML20154M796 (3)


See also: IR 05000409/1984009

Text

- ---_-- _ ----

.,

March 10, 196

.

Docket No.: 50-409

'

Mr. James W. Tavlor

General Manager'

Dairyland Power Cooperative

2615 East Avenue South

La Crosse, Wisconsin E4601

Dear Mr. Taylor:

SUBJECT: SHUTDOWN CONDENSER SAMPLE LINE (TAC 56955)

Re: La Crosse Roiling Water Reactor (LACBWR)

During the review of containment isolation provisions at LACRWR, a concern

was identified regarding the shutdown condenser sample line. This issue is

described in Inspection Report 84-09, dated October 5, 1984 (item 409/84-09-17).

By letter dated February 8,1985, you proposed to install two checn valves in

series in this line to improve the capability to isolate the containment atmosphere

from the environment. As discussed in the enciesed safety evaluation, the

staff concludes that the planned modification will provide acceptable

isolation capability for the shutdown condenser sample line.

Sincerely,

9rAsiana sisped by

John A. Zwolinski, Director

BWR Pro.iect Directorate #1

Division of RWR Licensing

Enclosure:

Safety Evaluation

cc: See Next Page DISTRIBUTION

MDocket File i

Local PDR JStano

NRC PDR JPartlow

NSIC FMiraglia

PD#1 Readina EMcKenna

ISAP Reading PAnderson

8603140487 860310 BRernero CJamerson

AN O ACRS (10)

{M OELD

EJordan JZwolinski

RGrimes CGrimes

  • SEE PREVIOUS CONCURRENCE GHolahan
  • ISAP:PWR-B *ISAP:PWR-B P # kWR PD#1:BWR

EMcKenna:lt CGrimbs J Ag i

JZwolinski

_ _ _ . . . 03/Q4M6 03P 7/86 03/P /86

_ - - - _ - - - _ - - - - - - - - _ - - . - _ - - _ _ . - - - - - - _

.

' ,

Docket No.: 50-409

{

"

Mr. James W. Taylor

General Manager

Dairyland Power Cooperative

2615 East Avenue South

La Crosse, Wisconsin 54601

Dear Mr. Taylor:

SUBJECT: LACROSSE BOILING WATER REACTOR (LACBWR) -

SHUTDOWN CONDENSER SAMPLE LINE

During the review of containment isolation pro sions at LACBWR, a concern

was identified regarding the shutdown condenser mple line, this issue is

described in Inspection Report 84-09, dated 0 ober 5, 1984 (item 409/84-09-17).

By letter dated February 8, 1985, you prop ed to install two check valves in

series in this line to improve the capa lity to isolate the containment atmosphere

from the environment. As discussed i the enclosed safetiy evaluation report,

the staff concludes that the plan d modification will provide acceptable

isolation capability for the s tdown condenser sample line.

John A. Zwolinski, Director

BWR Project Directorate #1

Division of BWR Licensing

Enclosure:

As Stated

cc: See Nex age DISTRIBUTION

Docket File

Local PDR JStang

NRC PDR JPartlow

NSIC FMiraglia

PD#1 Reading EMcKenna

ISAP Reading PAnderson

BBernero CJamerson

OELD ACRS (10)

EJordan JZwolinski

BGrimes CGrimes

I 4 ISAP:PWR- PD#1:BWR PD#1:BWR

EMcKenna:lt CGrimes JStang JZwolinski

03/y/86 03/4/86 03/ /86 03/ /86

.

-

.

.

Mr. James W. Taylor

Dairyland Power Cooperative La Crosse Boil'ing Water Reactor

cc:

Frit? Schubert, Esquire Clarence Riederer, Chief Engineer

Staff Attorney Wisconsin Public Service

Dairyland Power Cooperative Commission

2615 East Avenue South Post Office Box 7854

La Crosse, Wisconsin 54601 Madison, Wisconsin 53707

0. S. Heistand, Jr., Esquire

Morgan, Lewis & Bockius

1800 M Street, N.W.

Washington, D.C. 20036

Mr. John Parkyn, Plant Manager

La Crosse Boiling Water Reactor

Dairyland Power Cooperative

P. O. Box 275 -

Genoa, Wisconsin 54632

.

U.S. Nuclear Regulatory Commission

Resident Inspectors Office

Rural Route #1, Box 276

Genoa, Wisconsin 54632

Town Chairman

Town of Genoa

Route 1

Genoa, Wisconsin 54632

Chairman, Public Service Commission

of Wisconsin

Hill Farus State Office Building

Madison, Wisconsin 53702

Regional Administrator, Region III

U.S. Nuclear Regulatory Commission

799 Roosevelt Road

Glen Ellyn, Illinois 60137

.

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