ML20137L313

Forwards RAI Re DAEC ITS Re Setpoint Allowed Values

ML20137L313
Person / Time
Site:	Duane Arnold
Issue date:	04/03/1997
From:	Kelly G NRC (Affiliation Not Assigned)
To:	Leslie Liu IES UTILITIES INC., (FORMERLY IOWA ELECTRIC LIGHT
References
TAC-M97197, NUDOCS 9704070198
Download: ML20137L313 (4)

Text

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April 3,'~1997 s

Mr. Lee Liu Chairman of the Board, President, and

. Chief Executive Officer IES Utilities Inc.

Post Office Box 351 Cedar Rapids, IA - 52406-0351

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SUBJECT:

DUANE ARNOLD ENERGY CENTER - REQUEST FOR ADDITIONAL INFORMATI0N' I (RAI) ON THE DUANE-ARNOLD ENERGY CENTER CONVERSION OF THE DAEC TECHNICAL SPECIFICATIONS TO THE IMPROVED TECHNICAL SPECIFICATIONS  ;

, REGARDING SETPOINT ALLOWED VALUES (TAC NO. M97197)

Dear Mr. Liu:

On October 30, 1996, IES Utilities Inc., submitted a license amendment request to convert the Duane Arnold Energy Center (DAEC) Current Technical

Specifications (CTS) to the Improved Technical Specifications (ITS). During the course of our review, we found we require additional information to' complete our evaluation. Please respond to the enclosed request for ,

information (RAI) that seeks to clarify ' now you transitioned from the specific nominal trip setpoints defined in the CTS to the Allowed Values in the ITS.

Sincerely, Original signed by: y i Glenn B. Kelly, Project Manager Project Directorate III-3 '

Division of Reactor Pr.ojects III/IV Office of Nuclear Reactor Regulation

p-Docket No.50-33I

Enclosure:

Request for Additional Information ~

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April 3, 1997 l l

, Mr. Lee Liu l Chairman of the Board, President, and Chief Executive Officer IES Utilities Inc.

Post Office Box 351 Cedar Rapids, IA 52406-0351

SUBJECT:

DUANE ARNOLD ENERGY CENTER - REQUEST FOR ADDITIONAL INFORMATION (RAI) ON THE DUANE ARNOLD ENERGY CENTER CONVERSION OF THE DAEC TECHNICAL SPECIFICATIONS TO THE IMPROVED TECHNICAL SPECIFICATIONS REGARDING SETPOINT ALLOWED VALUES (TAC NO. M97197)

Dear Mr. Liu:

On October 30, 1995, IES Utilities Inc., submitted a license amendment request to convert the Duane Arnold Energy Center (DAEC) Current Technical Specifications (CTS) to the Improved Technical Specifications (ITS). During the course of our review, we found we require additional information to '

complete our evaluation. Please respond to the enclosed request for information (RAI) that seeks to clarify how you transitioned from the specific nominal trip setpoints defined in the CTS to the Allowed Values in the ITS.

Sincerely, Original signed by:

Glenn B. Kelly, Project Manager Project Directorate III-3 .

. Division of Reactor Projects III/IV Office of Nuclear Reactor Regulation Docket No. 50-331

Enclosure:

Request for Additional Information cc w/ encl: See next page Djigibution:

t Docket File PUBLIC PDIII-3 R/F CGrimes CCarpenter JRoe WAxelson, RIII DWeaver EAdensam (EGA1)

OGC, 015B18 GMarcus ACRS CDoutt G:\DUANEARN\DUA97197.RAJ To receive a copy of this document, indicate in the box: "C" = Copy without attachment / enclosure "E" - Copy with attachment / enclosure "N" = No copy 0FFICE LA:PDIII-3 16 PM:PDIII-3 l E %C4 .f E.

NAME CBoyle0/nH ar GKelly:am M4' ik/M4W DATE t/ /_;L /97 Y /p/97 / ' ' T 4 Ft-/11 i

0FFICIAL RECORD COPY

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.' Mr. Lee Liu Duane Arnold Energy Center i IES Utilities Inc.

l cc:

Jack Newman, Esquire Kathleen H. Shea, Esquire ,

Morgan, Lewis, & Bockius -

1800 M Street, NW.

Washington, DC 20036-5869 Chairman, Linn County Board of Supervisors Cedar Rapids, Iowa 52406 IES Utilities Inc.

ATTN: Gary Van Middlesworth Plant Superintendent, Nuclear 3277 DAEC Road Palo, Iowa 52324 Mr. John F. Franz, Jr.

Vice President, Nuclear Duane Arnold Energy Center 3277 DAEC Road Palo, Iowa 52324 Mr. Ken Peveler Manager, Nuclear Licensing Duane Arnold Energy Center 3277 DAEC Road Palo, Iowa 52324 -

II. S. Nuclear Regulatory Comission Resident Inspector's Office Rural Route #1 Palo, Iowa 52324 Regional Administrator, RIII U. S. Nuclear Regulatory Commission 801 Warrenville Road '

Lisle, Illinois 60532-4531 Ms. Parween Baig Utilities Division Iowa Department of Commerce Lucas Office Building, 5th floor Des Moines, Iowa 50319 h

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$~ REQUEST FOR ADDITIONAL INFORMATION l

! DUANE ARNOLD ENERGY CENTER IMPROVED TECHNICAL SPECIFICATIONS BASES FOR ALLOWED VALUES I

On October 30, 1996, IES Utilities Inc. (the licensee), submitted a request to

. convert its current technical specifications (CTS) to the improved technical ,

specifications (ITS). During the course of our review of the ITS submittal, 1

~

it became apparent that there was inadequate justification for the specific  ;

numerical _ values you propose to use in the ITS for Allowed Values. Please ,

. provide the following information:

1) For each Allowed Value in the ITS, describe how the particular numerical

- value was determined. This description should include the setpoint ,

methodology bases, applicable Topical Reports, and the conformance of .

the IES Utility setpoint program to Regulatory Guide 1.105, ISA  :

3 Std.567.04, and Generic Letter 91-04. In addition for newly developed i ITS Allowed Values that are without a corresponding CTS nominal trip t setpoint or for which the licensee was unable to develop, acquire, or  !

otherwise reconstruct the bases for the CTS nominal trip setpoint, e provide a detailed discussion of how the particular Allowed Value was

determined, including its safety significance and any assumptions (including uncertainty terms) made in the development of the Allowed

Value and its related trip setpoint. l i . *

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2) For each Allowed Value listed in the ITS, state whether the Allowable

. Value was based on a CTS nominal trip setpoint, Allowable Value, i t

Analytical Limit, or unknown value, and whether the ITS Allowable Value was developed in accordance with the IES Utilities setpoint methodology ,

with the relationship of the Analytical Limit, trip setpoint, and LSSS i

, defined and referenced in the TS Bases and Duane Arnold Energy Center

UFSAR.

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Enclosure i

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