ML20138C818

Requests Addl Info on Facility Third 10 Year Interval Inservice Insp Program Plan,Rev 0 & Associated Requests for Relief

ML20138C818
Person / Time
Site:	Duane Arnold
Issue date:	04/28/1997
From:	Kelly G NRC (Affiliation Not Assigned)
To:	Leslie Liu IES UTILITIES INC., (FORMERLY IOWA ELECTRIC LIGHT
References
TAC-M95412, NUDOCS 9704300209
Download: ML20138C818 (5)

Text

• y o April 28, 1997 Mr. Lee Liu Chairman of the Board and Chief Executive Officer IES Utilities Inc.

200 First Street, SE.

P.O. Box 351 Cedar Rapids, IA 52406-0351

SUBJECT:

DUANE ARNOLD ENERGY CENTER - REQUEST FOR ADDITIONAL INFORMATION ON THE DUANE ARNOLD ENERGY CENTER THIRD 10-YEAR INTERVAL INSERVICE INSPECTION PROGRAM PLAN, REVISION 0, AND ASSOCIATED REQUESTS FOR RELIEF (TAC NO. M95412)

Dear Mr. Liu:

On April 26, 1996, IES Utilities Inc., submitted its third 10-year interval inservice inspection plan and relief requests. The staff requires additional information in order to complete its review and requests that you provide a

. response to the enclosed questions within 60 days to meet the staff's inservice inspectiun program plan review schedule. To expedite the review, please send a copy of your response to the staff's contractor, INEEL, at the following address:

Michael T. Anderson .

INEEL Research Center j 2151 North Boulevard i P.O. Box 1625 I Idaho Falls, ID 83415-2209 I Sincerely, ffb hk 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 l

//',

cc w/ encl: See next page DISTRIBUTION:

Docket File EAdensam (EGA1) f, '.

PUBLIC GMarcus M/ ( /

300049 PD3-3 R/F OGC JRoe WAxelson, RIII ACRS TMcLellan G:\DUANEARN\10YRISI.RAI 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 lf PDIII-3 l f- PM:PDIII-3_l6 NAME CBoyle LQ6 DWeaver[$) GKelly ///A DATE 4 //g/970 4//t/97 4 /rV97 i 9704300209 970428 PDR ADOCK 05000331 G PDR

April 28, 1997 Mr. Lee Liu Chairman of the Board and Chief Executive Officer IES Utilities Inc. I 200 First Street, SE. l P.O. Box 351 Cedar Rapids, IA 52406-0351

SUBJECT:

DUANE ARN0LD ENERGY CENTER - REQUEST FOR ADDITIONAL INFORMATION ON l THE DUANE ARNOLD ENERGY CENTER THIRD 10-YEAR INTERVAL INSERVICE INSPECTION PROGRAM PLAN, REVISION 0, AND ASSOCIATED REQUESTS FOR l RELIEF (TAC N0. M95412) l

Dear Mr. Liu:

On April 26, 1996, IES Utilities Inc., submitted its third 10-year interval inservice inspection plan and relief requests. The staff requires additional information in order to complete its review and requests that you provide a response to the enclosed questions within 60 days to meet the staff's inservice inspection program plan review schedule. To expedite the review, please send a copy of your response to the staff's contractor, INEEL, at the following address:

Michael T. Anderson l INEEL Research Center l 2151 North Boulevard P,0. Box 1625 Idahc Falls, ID 83415-2209 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 DISTRIBUTION:

Docket File EAdensam (EGAl)

PUBLIC GMarcus PD3-3 R/F JRoe OGC WAxelson, RIII ACRS TMcLellan G:\DUANEARN\10YRISI.RAI 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 )C PDIII-3 l f- PM:PDlII-E10 NAME CBoyle (136 DWeaverEk] GKelly ff(A DATE 4 //f /974 4//t/97 4 /TV97 \

OFFICIAL RECORD COPY

\

l Mr. Lee Liu Duane Arnold Energy Center 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, IA 52406 IES Utilities Inc.

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

Vice President, Nuclear Duane Arnold Energy Center 3277 DAEC Road Palo, IA 52324 1

Mr. Ken Peveler l Manager, Nuclear Licensing Duane Arnold Energy Center 3277 DAEC Road Palo, IA 52324 l

U.S. Nuclear Regulatory Commission Resident Inspector's Office Rural Route #1 i Palo, IA 52324 Regional Administrator, RIII U.S. Nuclear Regulatory Commission 801 Warrenville Road Lisle, IL 60532-4531 Ms. Parween Baig Utilities Division Iowa Department of Commerce Lucas Office Building, 5th floor Des Moines, IA 50319

RE0 VEST FOR ADDITIONAL INFORMATION DUANE ARNOLD ENERGY CENTER l

THIRD 10-YEAR INTERVAL INSERVICE INSPECTION PROGRAM PLAN

1. In accordance with 10 CFR 50.55a(c)(3), 10 CFR 50.55a(d)(2), and 10 CFR 50.55a(e)(2), ASME code cases may be used as alternatives to code requirements. Code cases that the NRC has approved for use are listed in Regulatory Guide 1.147, Inservice Inspection Code Case Acceptability, with any additional conditions the NRC may have imposed. When used, these code cases must be implemented in their entirety. Published code cases awaiting approval and subsequent listing in Regulatory Guide 1.147 may be adopted only if the licensee requests, and the NRC authorizes, their use on a case-by-case basis.

For code cases awaiting NRC approval, use of these alternatives to code requirements may be acceptable for use when conditions deemed appropriate by the NRC, are included. As such, a licensee proposing the use of an alternative (s) of a currently unapproved code case (s) must commit to certain conditions, as applicable. Therefore, the staff requests that you modify your submittal to include the conditions specified for the relief requests below.

In Request for Relief NDE-R018, IES Utilities requested to implement the alternative to code requirements contained in Code Case N-509, Alternative Rules for the Selection and Examination of Class 1, 2, and 3 Integrally Welded Attachments. The NRC finds this alternative to code requirements i acceptable for use with the following condition Examination of a minimum 10% sample of all nonexempt integrally welded i attachments to piping, pumps, and valves, in Class 1, 2, and 3 1 systems.

In Request for Relief PR-002, IES Utilities requested to implement the alternative to code requirements contained in Code Case N-522, Pressure Testing of Containment Penetration Piping. The NRC finds this alternative to code requirements acceptable for use with the following conditions:

1) The test is conducted at the peak calculated containment pressure, and 2) The test procedure provides criteria for the detection and location of through-wall leakages in containment isolation valves (CIVs) and pipe segments between the CIVs.

2. In Request for Relief PR-001, IES Utilities proposed an alternative to the bolting corrective measures as follows:

"If it is determined, by the engineering evaluation, that a VT-3 examination is required, but the leakage is identified when the bolted connection is in service, an evaluation may be performed to justify deferral of bolt removal until the next time the affected component o-applicable portion of the piping system is removed from service.

However, the removal of the bolts for VT-3 visual examination and evaluation will not be deferred beyond the next refueling outage."

ENCLOSURE

Later editions of the code have provided an alternative to the removal of all bolting at a leaking connection. IES Utilities approach to perform an evaluation of the bolted joint should in itself provide the determination for the need to remove one bolt as part of the corrective action. The NRC has determined that a subsequent evaluation to justify deferral of bolt i removal is not appropriate and is considered unacceptable. Provide the action IES Utilities proposes to take regarding the inclusion of the subject paragraph in the proposed alternative.

3. In Request for Relief PR-005, IES Utilities proposed an alternative to the relief valve discharge piping test requirements. Similar requests have been found acceptable provided that the licensee's alternative includes a VT-3 visual examination of the discharge piping to verify its integrity.

The NRC believes that a VT-3 visual examination is technically prudent in light of a recent discharge pipe failure in a suppression pool.

Therefore, the IES Utilities should modify its submittal to include the VT-3 examination in order that the NRC can find this alternative acceptable.

The schedule for timely completion of this review requires that the licensee provide, by the requested date, the above requested information and/or clarification with regard to the Duane Arnold Energy Center Third 10-Year Interval Inservice Inspection Program Flan. i 4

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