ML17292B370

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Forwards Insp Rept 50-397/98-01 on 980209-0422.One Apparent Violation Identified & Being Considered for Escalated Ea. Violation Involved Vendor Development of Operating & Safety Limits for Min Critical Power Ratio That Were Inaccurate
ML17292B370
Person / Time
Site: Columbia Energy Northwest icon.png
Issue date: 05/08/1998
From: Howell A
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV)
To: Parrish J
WASHINGTON PUBLIC POWER SUPPLY SYSTEM
Shared Package
ML17292B371 List:
References
50-397-98-01, 50-397-98-1, EA-98-228, NUDOCS 9805140311
Download: ML17292B370 (9)


See also: IR 05000397/1998001

Text

CATEGORY 2

REGULATORY INFORMATION DISTRIBUTION SYSTEM

(RXDS)

Pl

ACCESSION NBR:9805140311

DOC.DATE: 98/05/08

NOTARIZED: NO

DOCKET ¹

FACZL'.50-397

WPPSS Nuclear Project, Unit 2, Washington Public Powe

05000397

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AUTH.NAME

AUTHOR AFFILIATION

OWELL,A.T.

'egion

4 (Post

820201)

RECIP.NAME

RECIPXENT AFFILIATION

PARRZSH,J.V.

Washington Public Powe'r Supply System

SUBJECT: Forwards insp rept 50-397/98-01

on 980209-0422.0ne

apparent

violation identified

& being considered for escalated

EA.

Violation involved vendor development of operating

R safety

limits for min critical power ratio that were inaccurate.

DISTRIBUTION CODE: IEOIT

COPIES

RECEIVED:LTRl ENCLl SIZE:

IS

7. /

TITLE: General

(50 Dkt) -Insp Rept/Notice of Violation Response

NOTES:

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NOTE TO ALL "RIDS" RECIPIENTS:

PLEASE HELP US TO REDUCE WASTE. TO HAVE YOUR NAME OR ORGANIZATION REMOVED FROM DISTRIBUTION LISTS

OR REDUCE THE NUMBER OF COPIES RECEIVED BY YOU OR YOUR ORGANIZATION," CONTACT THE DOCUMENT CONTROL

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ON EXTENSION 415-2083

FULL TEXT CONVERSION REQUIRED

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UNITE O STATES

NUCLEAR REGULATORY COMMISSION

REGION IV

611 RYAN PLAZA ORIVE, SUITE 400

ARLINGTON,TEXAS 76011 8064

May 8, 1998

EA 98-228

Mr. J. V. Parrish (Mail Drop 1023)

Chief Executive Officer

Washington Public Power Supply System

P.O. Box 968

Richland, Washington

99352-0968

SUBJECT:

NRC INSPECTION REPORT 50-397/98-01

Dear Mr. Parrish:

An NRC special inspection was conducted to review your response to three unresolved items

related to core power distribution limits that were previously identified in NRC Inspection

Report 50-3S7/97-11, dated November 6, 1997. The inspection included activities onsite

between February 9-12, 1998, at your Washington Nuclear Project-2 reactor facility, with

continuing in office review through April22, 1998.

The onsite activity dealt primarily with the

review of your response to the unresolved items, dated November 25, 1997. The in-office

inspection was mainly concerned with the review of additional information provided by your staff

on March 9, 1998.

A debrief with members of your staff was held on February 12, 1998, during which they

disagreed with our position that during a limiting anticipated operational occurrence, it was

possible that the minimum critical power ratio safety limitfor the Siemens fuel that should have

been in place could have been exceeded during Core Cycles 7-12. As a result, your staff

agreed to provide the additional information referenced above that was intended to refute our

position. During a telephone conversation with your licensing staff on February 17, 1998, it was

stated that we would have the additional information by February 19, 1998.

During a

subsequent telephone conservation with a licensing representative

on February 19, 1998, we

were informed that the information we required to make a decision would not be available until

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March 5, 1998.

Following review of the information that was provided on March 9, 1S98, an exit

meeting was held on April22, 1998.

Based on the results of this inspection, one apparent violation was identified and is being

considered for escalated enforcement action in accordance with the "General Statement of

Policy and Procedure for NRC Enforcement Actions" (Enforcement Policy), NUREG-1600. The

apparent violation concerns the failure of the design control process to assure that design basis

and regulatory requirements were correctly translated into the facilityTechnical Specification

limit. This apparent failure involved vendor development of operating and safety limits for

minimum critical power ratio that were not accurate and conservative.

We are aware that the

revised safety limitwas not actually exceeded during any of the transients experienced by the

plant during Core Cycles 7-12. However, due to the decreased

safety margin that resulted from

nonconservative operating limits, we believe it was possible to exceed the revised minimum

critical power ratio safety limitduring a limiting anticipated operational occurrence during Core

9805i403ii 980508

PDR

ADQCK 050003'P7

6

PDR

Washington Public Power Supply System

-2-

Cycles 7-12. A Notice of Violation is not presently being issued for these inspection findings.

We are concerned that the failure of the design control process in this instance caused an

apparent unanticipated reduction in margin of safety and, therefore, the administrative controls

for operating limits may not have functioned to ensure that a safety limitwas maintained.

Additionally, please be advised that the number and characterization of apparent violations

described in the enclosed inspection report may change as a result of further NRC review.

An open, predecisional enforcement conference willbe scheduled to discuss the apparent

violation. The date for the conference to discuss the apparent violation will be coordinated with

your staff. The decision to hold a predecisional enforcement conference does not mean that the

NRC has determined that a violation has occurred or that enforcement action willbe taken. This

conference is being held to obtain information to enable the NRC to make an enforcement

decision, such as a common understanding of the facts, root causes,

missed opportunities to

identify the apparent violations sooner, corrective actions, significance of the issues, and the

need for lasting and effective corrective

action.'t

the conference, we would like to establish a common understanding of the apparent violation

and the implication of the nonconservative determination and implementation of license core

power distribution limits. It is of particular importance that you discuss all implications of the

inspection findings. In addition, this is an opportunity for you to point out any errors in our

inspection report and to provide any information concerning your perspectives

on 1) the severity

of the violation, 2) the application of the factors that the NRC considers when it determines the

amount of a civil penalty that may be assessed

in accordance with Se'ction VI.B.2 of the

Enforcement Policy, and 3) any other application of the Enforcement Policy to this case,

including the exercise of discretion in accordance with Section VII.

You willbe advised by separate correspondence

of the results of our deliberations on this

matter.

No response regarding this apparent violation is required at this time.

In accordance with 10 CFR 2.790 of the NRC's "Rules of Practice," a copy of this letter and its

enclosure willbe placed in the NRC Public Document Room (PDR).

Should you have any questions concerning this inspection, we willbe pleased to discuss them

with you.

Sincerely,

Arthur T. Howell III, Director

Division of Reactor Safety

)

II

Washington Public Power Supply System

-3-

Docket No.: 50-397

License No.: NPF-21

Enclosure:

NRC Inspection Report 50-397/98-01

cc w/enclosure:

Chairman

Energy Facility Site Evaluation Council

P.O. Box 43172

Olympia, Washington

98504-3172

Mr. Rodney L. Webring (Mail Drop PE08)

Vice President, Operations Support/PIO

Washington Public Power Supply System

P.O. Box 968

Richland, Washington

99352-0968

Mr. Greg O. Smith (Mail Drop 927M)

WNP-2 Plant General Manager

Washington Public Power Supply System

P.O. Box 968

Richland, Washington

99352-0968

Mr. David A. Swank (Mail Drop PE20)

Manager, Regulatory Affairs

Washington Public Power Supply System

P.O. Box 968

Richland, Washington

99352-0968

Mr. Albert E. Mouncer (Mail Drop 396)

Chief Counsel

Washington Public Power Supply System

P.O. Box 968

Richland, Washington

99352-0968

Mr. Paul Inserra (Mail Drop PE20)

Manager, Licensing

Washington Public Power Supply System

P.O. Box 968

Richland, Washington

99352-0968

Washington Public Power Supply System

-4-

Perry D. Robinson, Esq.

Winston 8 Strawn

1400 L Street, N.W.

Washington, D.C. 20005-3502

Washington Public Power Supply System

-4-

E-Mail report to T. Ffye (TJF)

E-Mail report to D. Lange (DJL)

E-Mail report to NRR Event Tracking System (IPAS)

E-Mail report to Document Control Desk (DOCDESK)

bcc to DCD (IE01)

bcc distrib. by RIV:

Regional Administrator

DRP Director

Branch Chief (DRP/E, WCFO)

Senior Project Inspector (DRP/E, WCFO)

Branch Chief (DRP/TSS)

WCFO File

Lieberman,

D/OE (07H5)

OE:EA File (07H5)

G. Sanborn

Resident Inspector

DRS-PSB

MIS System

RIV File

M. Hammond (PAO, WCFO)

DocuMENT NAME: R:twN2'IWN801RP.JEw

To receive cop

of document, Indicate ln box: "C" = Cop

without encios

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"N". = No cop

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-4-

E-Mail report to T. Frye (TJF)

E-Mail report to D. Lange (DJL)

E-Mail report to NRR Event Tracking System (IPAS)

E-Mail report to Document Control Desk (DOCDESK)

bcc to DCD (IE01)

bcc distrib. by RIV:

Regional Administrator

DRP Director

Branch Chief (DRP/E, WCFO)

Senior Project Inspector (DRP/E, WCFO)

Branch Chief (DRP/TSS)

WCFO File

Lieberman,

D/OE (07H5)

OE:EA File (07H5)

G. Sanborn

Resident Inspector

DRS-PSB

MIS System

RIV File

M. Hammond (PAO, WCFO)

DOCUMENT NAME: R:tWN2tWN801RP.JEW

To receive copy of document, Indicate in box: "C" = Copy without enctos

py with enctosures

"N"= No cop

RIV:SRI:M

NRR:NE

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