ML20237C139

Forwards Insp Rept 50-331/98-11 on 980803-07.No Violations Noted

ML20237C139
Person / Time
Site:	Duane Arnold
Issue date:	08/14/1998
From:	Grobe J NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
To:	Franz J AFFILIATION NOT ASSIGNED
Shared Package
ML20237C141	List: IR 05000331/1998011 ML20237C139
References
50-331-98-11, NUDOCS 9808200250
Download: ML20237C139 (2)

See also: IR 05000331/1998011

Text

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August 14,1998

Mr. John F. Franz, Jr. '

Vice President, Nuclear

Alliant Tower

200 First Street SE

P. O. Box 351

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Cedar Rapids, IA 52406-0351

SUBJECT: DUANE ARNOLD CHEMISTRY AND RADIATION PROTECTION INSPECTION  !

REPORT 50-331/98011(DRS) f

Dear Mr. Franz:

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On August 7,1998, the NRC completed an inspection at your Duane Arnold Energy Center.

The enclosed report presents the results of this inspection.

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The inspection was an examination of activities conducted under your license as they relate to

, radiation safety and to compliance with the Commission's rules and regulations and with the

conditions of your license. The inspection consisted of a selective examination of procedures

and representative records, observations, and interviews with personnel. Specifically, the

inspection focussed on the implementation of the chemistry, radiological environmental

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monitoring, and meteorological monitoring programs. In addition, the inspection reviewed

issues identified in previous NRC inspections. No violations of NRC requirements were ,

identified. j

Your staff demonstrated effective monitoring and control of plant water chemistry. In particular,

we recognized your continued plant commitment to advanced technologies in mitigating j

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corrosion, including noble metal chemical addition and hydrogen water chemistry, and to

reducing corrosive agents in plant coc6nt systems. Quality control of chemistry j

instrumentation was effectively implemented and documented; however, we observed some

performance biases and adverse trends in instrument responses, which were being evaluated ,

and corrected by your staff.

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The radiological environmental monitoring and meteorological program were also property

implemented. However, we observed that the 1996 and 1997 annual reports, which concluded

that only background radiation was detected, did not fully evaluate some positive environmental  ;

sample results. Specifically, minor amounts of cobalt-60 were detected in the sewage 1

discharge canal sediments, which were slightly above your lower limit of detection. Although

the levels of radioactivity in these samples did not indicate a public health and safety concem,

your staff did not fully assess the results in the context of plant operations or historical trends.

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

enclosure will be placed in the NRC Public Document Room.

9808200250 980814

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i PDR ADOCK 05000331 ~, {

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! J. Franz 2

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l We will gladly discuss any questions you have conceming this inspection.

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l Sincerely,

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Original Signed by Steven A. Reynolds (for)

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i John A. Grobe, Director

l Division of Reactor Safety

Docket No.: 50-331

License No.: DPR-49

Enclosure: Inspection Report 50-331/98011(DRS)

. cc w/ encl: E. Protsch, Executive Vice President

! Energy Delivery Alliant;

President, IES Utilities, Inc.

G. Van Middlesworth

l Plant Manager

. K. Peveler, Manager

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Regulatory Performance

Chairperson, Iowa Utilities Board

Distribution:

Project Mgr., NRR w/enci

J. Caldwell, Rlll w/enci

l C. Pederson, Rlli w/enci

! B. Clayton, Rlll w/enci

SRI Duane Arnold w/enci

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DATE 08ht/98 08//3/98 08/11/98 08/11/98

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