ML20210T596
| ML20210T596 | |
| Person / Time | |
|---|---|
| Site: | Duane Arnold  |
| Issue date: | 02/06/1987 |
| From: | Shafer W NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| To: | Leslie Liu IES UTILITIES INC., (FORMERLY IOWA ELECTRIC LIGHT |
| Shared Package | |
| ML20210T600 | List: |
| References | |
| NUDOCS 8702180239 | |
| Download: ML20210T596 (4) | |
See also: IR 05000331/1986020
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1E8 0 671987
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DockedNo.50-331
" Iowa Electric ~ Light and. Power
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. Company'
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ATTN: ,Mr. Lee .Liu :
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' President:and Chief
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Executive' Officer:
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IE Towers-
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P. 0. Box 351
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Cedar Rapids, IA'-52406
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Gentlemen:
.6
To verify that Emergency Response Facilities (ERFs) at licensed nuclear power-
plants meet the requirements of 10 CFR 50.47(b), Appendix ~ E of 10 CFR Part 50,
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and orders issued.toLimplement Supplement 1 to-NUREG-0737, the_NRC conducts-
special appraisals of these . facilities.
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.During the period November 17 through 21, 1986, the NRC-condu'ted a special.
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ERF Appraisal at the Duane Arnold Energy Center,-authorized by NRC-Operating
License No.-DPR-49. Areas examined during.the appraisal are described inithe
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enclosed ~ report.(50-331/86020). -Within1these areas,.the' appraisal team ..
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reviewed selected procedures and representative records, inspected the ERFs
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and related equipment, observed the 1986 annual' emergency preparedness exercise,
and interviewed personnel. The team's-findings regarding the annual e'xercise
have also been' described in Inspection Report No.. 50-331/86015(DRSS).
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No violations of NRC requirements were' identified during the.. course of-
this a raisal. However,-several areas were identified where equipment
instal
tion was incomplete or where modifications have been deemed necessary
in order to provide adequate assurance that the ERFs and the related equipment
are capable of, supporting those functions needed to assist your emergency;
response organization in taking adequate corrective measures in the event
of a radiological emergency at the Duane Arnold Energy Center. These items
-are identified as Open Items in the enclosed-appraisal report and are also
summarized in Enclosure 1 to this letter.
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The findings also indicate-that there7are'itemsiin your emergency preparedness.
program which need improvement. These: items.are identified.in the textLof the
enclosed appraisal report. These improvements are areas.which, basedfon~
.professionaljudgement,wefeelshouldbecorrected.
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Accordingly, you are-requested to submit a written statement, within 45 days
of the date of this letter, which describes your-planned actions on each of-
the identified Open Items, including a schedule for completion of these--
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actions.
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Iowa Electric Light and Power
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FE8 0 61987
Company
In accordance with 10 CFR 2.790 of the Commission's regulations, a copy of
this letter, the enclosures, and your response to this letter will be placed
in the NRC Public Document Room.
The responses directed by this letter are not subject to tne clearance
procedures of the Office of Management and Budget as required by the
Paperwork Reduction Act of 1980, PL 96-511.
We will gladly discuss any questions you have concerning this inspection.
Sincerely,
woricini c'
-' ' " l')- Shfe"
W. D. Shafer, Chief
Radiological Protection Branch
Enclosures:
1.
Appraisal Open Items
2.
Inspection Report
No. 50-331/86020(DRSS)
cc w/ enclosures:
D. Mineck, Plant Superintendent
Nuclear
W. Miller, Assistant Plant
Superintendent Technical
Su
DCS/pportRSB (RIDS)
Licensing Fee Management Branch
Resident Inspector, RIII
Thouas Houvenagle, Iowa State
,
Commerce Commission
D. Matthews, EPB, 0IE
E. Williams, EPB, 0IE
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! ENCLOSURE-
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0 pen Items Identified During The Appraisal
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Ensureithat;the following TSC equipment.and systems'can receive power:
' from an essential' power source:: HVACisystem; radio base' station for.
field team communicatio'ns; new Plant. Process; Computer (PPC)~(VAX; .
.Model 8600);. MIDAS. terminal used for offsite. dose calculation, and
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. TSC lighting.
(50-331/86020-01)1(Section 1.1.3.3);
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12.
- Ensure that the new PPC (VAX Model 8600) will be: electrically'. isolated
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from plant safety systems, and that such isolation will be. adequately
verified, validated,~and documented.' (50-331/86020-02) (Section 1.2.2.3)_-
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Developadequateprovisionstforgenerating~.offsiteidoseprojections.
for releases that enter the environment;through'unmonitored.pathwayst
(50-331/86020-03)-(Section 1.2.4.2)-
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Ensure that the'followingssix' factors, which can adversely affect'offsite
dose calculations, are corrected o'r;are: adequately compensated lfor:--
Wind speed and possibly wind direction measurements, for at least
the northerly direction are significantly affected by-meteorological
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tower wake effects;
The reliability of the onsite meteorological data isisuspect as the
senso'rs output signals are-processed by heat sensitive equipment ~
kept in a structure which is not air-conditioned;
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The meteorological data reliability.is. suspect as signal' conditioning-
equipment is not electrically protected. from power-surges;
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Computerized meteorological data. quality-control checks are generally
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too rudimentary to identify and eliminate highly suspect values;
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The power-law relationship used'to estimate wind. speed at~the
offgas stack height is inappropriate; and
A Table in EPIP 3.3 that'could be used to convert a weath~er
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observation into an atmospheric stability class is incorrect.
(50-331/86020-04)(Section1.2.4.2)
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5.
. Develop procedures and provide related training to ap r riate emergency
response personnel to enable.them to retrieve and dis 1
historical-
lant data that-are stored using the PPC or SPDS.
(5- 1/86020-05)
Section1.2.5.1).
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Establish and maintain an availability log)for the present and the
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new PPC.
(50-331/86020-06) (Section 1.2.6
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Enclosure
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7.
Establish and maintain a sensor through computer calibration process
for~the PPC.
(50-331/86020-07) (Section 1.2.6.1)
8.
Proceduralize guidance related toLthe evacuation and relocation of'0SC-
personnel, including specifying: what criteria warrant OSC evacuation;-
which supervisory and staff personnel would relocate to the TSC, ORRA,
or some other location; and how OSC personnel accountability would be-
maintained during such a relocation.
(50-331/86020-08) (Section 2.1.1.3)
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