ML20090G113
| ML20090G113 | |
| Person / Time | |
|---|---|
| Site: | University of Wisconsin |
| Issue date: | 06/30/1984 |
| From: | Cashwell R WISCONSIN, UNIV. OF, MADISON, WI |
| To: | John Miller Office of Nuclear Reactor Regulation |
| References | |
| NUDOCS 8407240235 | |
| Download: ML20090G113 (15) | |
Text
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s, ANNUAL OPERATING REPORT FOR LICENSE R-74 THE UNITED STATES NUCLEAR REGULATORY COMMISSION FOR FISCAL YEAR 1983-1984 d PREPARED BY:. R. J. CASHWELL DEPARTMENT OF NUCLEAR ENGINEERING
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g ANiluAL REPORT A. Surt4ARY OF CPERATIONS-
- 1. 11JSTRUCTIONAL USE - UW-MADISON FORMAL CLASSES
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Three Nuclear Engineering Department classes make use of the. reactor. Sixty-two stu' dents enrolled in NE 231 participated in a two-hour laboratory session introducing students to reactor behavior characteristics. Twelve-hours of reactor operating time were devoted to this session. NE 427 was offered in the fall and spring semesters and had an enrollment of thirty. Several NE 427 experiments use' materials that are activated in the reactor. One experiment entitled " Radiation Survey" requires that students make measurements of radiation levels in and around the reactor laboratory. The irradiat}cns In' support of NE 427 and the radiation survey take place (during normal isotope production runs, so no reactor time is specifically devoted to NE 427. The enrollment in NE 428 was seventeen, as it was offered in both semesters. Threes experimen'ts i,n NE 428 require exclusive use of the reacter. Each of these experiments (" Critical Experiment",
" Control Element Calibration", and " Pulsing") was repeated four times during the year requiring aNtotal of seventy-eight hours of exclusive reactor use. Other'NE'428. laboratory sessions use material that has been irradiated in the reactor (" Fast Neutron Flux Measurements by Threshold Foil Techniques" and " Resonance Absorption"). These two experiments were repeated eight times during the year.- Individual one- to two-hour sessions in the reactor laboratory were also held for other departments on campus.
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( 2. ' REACTOR SHARING PROGRAM t
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, User institutions par (~lcipated in the program as detailed in the following paragraphs: ,
Carleton College (Minnesota) iProfessor Henrickson and m 12 undergraduate , students used the NAA service to analyze rocks,
, pot tery, and sedimen ts f o'r seni or theses projects.
. Carroll College (Wisconsin)--Professor Auchter and 4 of ,
his advanced chemistry students came to the laboratory for a 4-hour >
NAA.Taboratory session.
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3s' i ,. 4UW-Green Bay--ProfesNr.' Norman and 7 students in sNuctesc Phutics and Radiochemistry visited;the laboratory for a
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4-hour. laboratory session on neutron active, tion analysis.
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UWNR Annual Report 2 Edgewood College (Wisconsin)--Professor Swanson and 8 students attended a neutron activation analysis laboratory session.
Nebraska Wesleyan University--Professor Goss and 1 graduate student used the NAA service to examine two meteorites for common origin.
Lakeshore Technical Institute (Wisconsin)--Professor Reindel and 17 of his students in a Heal th Physics Technician Training Program visited the laboratory for a reactor operating characteristics demonstration and familiarization with instruments used to detect radioactive effluents.
University of Minnesota-Duluth--Professor Rapp and his research group continued their work using NAA of artifacts to determine provinance of metals and pottery.
- 3. UTILITY PERSONNEL TRAINING Two groups (15 trainees) of STA candidates from Wisconsin Public Service Corporation attended our two-week Research Reactor Training Program. This program gives operating practice while it reinforces previous training in reactor physics and operation and gives laboratory experience in health physics and instrumentation.
- 4. SAMPLE IRRADIATIONS AND NEUTRON ACTIVATION ANALYSIS SERVICES There were 4,048 samples (2081 separate irradiations)
Irradiated during the year. There were 2,290 samples which received short (15 minutes or less) Irradiations. Other samples accumulated 696.88 irradiation space hours and 18,486.7 sample hours. Most of the samples were irradiated and subsequently counted at the laboratory as part of our neutron activation analysis service. In the listing below, the notation (NAA) indicates that the sunples esere processed by our neutron activation analysis servige. .
A. D. Little, Inc. (NAA) 136 sunples, 79 less than 13 minutes, 84 irradiations, 16.9 irradiation space hours, 119.61 s ampl e hours Measurement of elemental concentrations in fly ash sampl es f or pol u t i on studi es. Supported by industrial funds.
Center for Great Lakes Studies-UW-Milwaukee. (NAA) 1978 samples, 1942 less than 15 minutes, 1943 irradiations, 89.8 Irradiation space hours, 108 sample hours.
Professor Bertram continued a study of selenium content of fl at head minnows to determine possible ef f ec ts of polut ion sources.
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]~ Chemistry Department. (NAA) 68 samples, 60 less than s/15 minutes, 37 irradiations, 5.5 irradiation space hours, 4 sample
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/ Professor Record, 1 post doctoral fellow, and 1 graduate ;
j '~ student used the neutron activation analyeis service in a study of f scdium and rubidium interactions with DNA. :Research is supported -
< / by NSF and NIH. -
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Dairy Scler;e Department. (NAA) 238 sunples, 3 i irradiations, 9 irradintjon space hours, 714 sample hours. _
Professor Jorgenein, 1 additional staff member, 4 l graduate students and 2 undergraduates used the neutron activation andysis service for stable-tracer measurements on particle -
esduction, rate of passage of undigested feed particles, and 3 digestibtlity in cattle. 'Suppoited byfstate' funds, federal (Hatch 7 Acticano industrial gifts. E a 4, Enzyme Institute (University of Wisconsin-Madison). h (MAA) 13 samples, 0 less than 15< minutes, 9 irradiations, 2.67
,.trradiation. space hours, 10 sampl e hours. _
Pr9f . Lardy , , 1 pestdoctoral ~f e l ) ow, and 1 graduate
. P student measured Amount of selenlunDin an enzyme and attempted to ,
de termine, whether any me tal s were present in a substance that
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stimulates an enzyme reaction. Supported by NIH.
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samples, 230 left than"16~ minutes, 137frradiations, 12.08 irradiation spaide hours. .
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Me tsurement of impurity levels-of lead samples to be used i ,nzbatterles.
Industria1' support. .
Institute for Environmental Studies (University of
' Wi sconsi n-Madi son) . (NAA) 5 samplas all less than 15 minute i rr ad i a t 1,or. , .E !,rradiations, 0.42 irradiation space hours.
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Prof. DeWi tt and 1 graduate. student attempted to measure tra,ce element concentrations (primari,1y Selenium) in peat.
Support _ unknown.
r - University of Illinois. (MNA) 74 samples, 1 irradiativo, 3 treadiation space hours, 222 sample hours.
. Prof. A. H.'Jensen and 1 graduate ~r.tudent determined
- - aY t terbi um marker concen trat i ons in sow f eces to est iriate di gesta h , transit time through'tne' hindgut. ~
Support unknown.
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"', ,! Medici,ne Department. (NAA) 36 ,s3mp l e s , 18 less than
~r , 15 minute i rradiation, 19 irradiations, 3.5 irradiation space
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/ One staff member used the neutron activation analysis I/ . (service to determine' impurity levels in solutions used to keep
.; kidaeys viable white awaiting transplant. Support by NIH.
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UWNR Annual Raport 4
Meteorology Department. (NAA) 67 samples, 58 less than 15 minute irradiation, 52 irradiations, 5.7 irradiation space hours, 2.52 sample hours.
Professor Wang, 1 graduate student used the neutron activation analysis service for determining the mass of indium aerosol particles scavenged by snow. Supported by Environmental Protection Agency.
Michigan State University. (NAA) 394 samples, 4 irradiations, 12 Irradiation space hours, 1,182 sample hours.
! Professor Weber and 1 graduate student of the Department of Animal Science used rare earth stable tracers as markers in ruminant nutrition research involving rate of passage and extent of digestion of feed constituents. Supported by the Michigan Agricultural Experiment Station.
Nuclear Engineering Department.
NE 427 and NE 428 instructional use. 238 samples, 84 less than 15 minutes, 77 Irradiations, 69.7 irradiation space hours, 206.83 sample hours. Irradiation of foils in support of laboratory instruction.
Reactor Laboratory and Utility Training. 34 samples, 22 less than 15 minutes, 23 Irradiations, 4.11 irradiation space hours, 29.87 sample hours. Tests of neutron activation analysis techniques and preparation of samples used in calibration of reactor instrumentation.
Nuclear Medicine Department. 62 samples, 2 less than 15 minutes, 33 irradiations, 23.17 irradiation space hours, 42.95 sample hours.
Professor Gatley, 1 additional staff member, 4 students. Production of fluorine-18 to produce compounds for positron emission tomography. Supported by National Cancer Institute, UW Medical School , and Graduate School .
Physics Depar.tment. (NAA) 30 samples, 3 l_ irradiations, 1.5 irradiation cpace hours, 15 sample hours.
Professor Knutson and 1 student. Determination of ytterbium concentrations in samples of yttrium. ethyl sulfate.
Analysis of samples for the presence of other contaminants and i analysis of synthesized crystals. Supported by the Department of Energy.
Reactor Sharing Program.
l Carroll College. 6 samples less than 15 minutes, 6 l Irradiations. .5 irradiation space hours. Activation for neutron
' activation analysis l aboratory session.
Carleton College (NAA) 139 samples, 5 irradiations, /
10 Irradiation space hours, 288 sample hours. Prof. E. ,
l Henrickson of the Geology. department had 6 groups of 2 L undergraduate students use the NAA service for senior theses on j . geological problems.
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s UWNR Annual Report 5 Edgewood College. (NAA) 2 samples, 2 less than 15 minutes, 2 irradiations, 0.42 Irradiation space hours.
Samples irradiated for NAA laboratory exercise.
University of Minnesota-Duluth. (NAA) 72 samples, 2 Irradiations, 4 irradiation space hours, 144 sample hours.
Prof. Rapp, 2 staff members, and 2 students continued work on determining common origin of copper and pottery artifacts.
University of Wisconsin-Green Bay. 18 samples, 9 less than 15 minutes, 10 irradiations, 1.75 irradiation space hours, 9 sample hours. Irradiations in support of neutron activation analysis session.
Nebraska Wesleyan University. (NAA) 13 samples, 7 less than 15 minutes, 8 irradiations, 2.59 irradiation space hours, 12 sample hours.
NAA of meteorite sample" to determine common origin. Unsupported research.
All of these instructional and research uses were supported by the United States Department of Energy's Reactor Sharing Program.
- Safety Department. (NAA) 10 samples, all less than 15 minutes, 10 irradiations, 0.83 irradiation space hours.
Measurement of halogen content of organic waste smnp l e s . Supported by the University of Wisconsin.
Safety Engineering Associates. (NAA) 20 samples, 10 less than 15 minutes, 12 irradiations, 2.83 irradiation space hours, 10 sample hours. -
Determination of whether two paint samples matched in trace element composition. Industrial support.
Soil s Department. 42 smnples, all less than 15 minutes, 3 Irradiations, 0.67 irradiation space hours.
Two staff members, 1 post doctoral fellow, 1 graduate student.
Development of rare earth tracer techniques to measure in-situ biogenic sediment redistribution by deposit feeding benthic microinvertebrates. Su~pported by the Environmental Protection Agency.
Tracer studies of elemental behavior in environmental systems. Fuoported by federal Hatch Act and EPA.
U.S. Department of Agriculture, Beltsville, Md., Animal Science Institute. (NAA) 144 samples, 4 irradiations, 8 irradiation space hours, 288 sample hours.
Dr. GSann and one other staff member used stable tracer techniques to quan,sfy dietary external markers in digesta and feces of ruminants. Supported by the U.S. Department of Agriculture.
University of Maryland. (NAA) 204 sunples, 2 irradiatons, 6 irradiation space hours, 612 sample hours.
Professor Erdman of the Department of Animal Science and his graduate students used stable tracer techniques for
UWNR Annuni Report 6 .
measuring feedstuff utilization in cattle. Support unkn,wn.
University of Minnesota. (NAA) 994 samples, 526 less than 15 minutes, 529 irradiations, 68.98 Irradiation space hours, 936 sample hours.
Professor Gorham of the Department of Ecology and Behavioral Biology wi th 1 post doctoral and 1 graduate student is using the neutron activation analysis service to analyze plants and peat cores from bogs ranging from MI:mesota to Newf oundl and.
Research supported by the National .alence Foundation.
Universi ty of Wisconsin Hospi tals and Clinics. (NAA) 9 samples, 4 less than 15 minutes, 5 irradiations, 2.33 irradiation space hours, 18 sample hours.
Professor Evenson used the neutron activation analysis service to analyze water samples for heavy metal contaminants.
Support unknown.
Warzyn Engineering, Inc. (NAA) 42 sunples, all less than 15 minutes, 7 irradiations, 1.75 Irradiation space hours.
Determination of halogen content of groundwater.
Industrial support.
Zoology Department. (NAA) 24 samples, all less than 15 minutes, 24 Irradiations, 2 Irradiation space hours.
Graduate student used NAA to detect low levels of toxic elements in aquatic insects. Unsupported preliminary program.
- 5. CHANGES IN PERS0bNEL', FACILITY, AND PROCEDURES Changes reportable under 18 CFR 59.59 are indicated in Section E of this report.
Licensed operator, Jeffrey Franzen, completed his degree requirements and left for other employment during the year.
Five individuals are currently enrolled in an operator training program.
As part of an attempt to reduce the, number of spurious reactor scrams a modification of 19M1, the fuel temperature indicator, was performed. The instrument is a LFE Compak IV, Mark I Controller. Communication with the manufacturer indicated that other users of this device had experienced similar spurious operation due to sensitivity to power.line noise and RF pickup from nearby sources, including security force radio operation. The manuf acturer suggested a replaceme'nt meter Sich did not have the problem (due to a slower response time). Is 'as also noted that the currently manuf actured uni ts of the meter 9mpak IV, Mark II) had additional filtering of comparator inputs. The RSC approved
UWNR Annual R3 port 7 modification of the installed devices to match the Mark II circuits and replacement of the device with the unit suggested by the manufacturer should the modification not prove acceptable. The modifications were made, and a considerable reduction in number of spurious scrams was observed. Further operating experience with the modified instruments is desired before a final decision on replacement of the unit is made.
- 6. RESULTS OF SURVEILLANCE TESTS Surveillance tests and inspections during the year revealed no safety-related defects.
B. OPERATING STATISTICS AND FUEL EXPOSURE Critical Operating Period Startups Hours MW Hours Pulses FY 83-84 176 694.28 550.18 49 Total Present Core 1859 3820.38 2921.48 221 Total TRIGA Cores 3114 11993.16 8061.26 1582 C. EMERGENCY SHUTDOWNS AND INADVERTENT SCRAMS There were no shutdowns initiated for emergency reasons during the year. There were 18 inadvertent scrams distributed as indicated below:
R Trainee Operator Error Scrams 2/19/84--Trainee failed to uprange #2 pA in a timely fashion.
2/18/84--Trainee downranged #1 pA while at too high a reading.
2/10/84--Trainee failed to uprange #2 pA in a timely fashion.
2/13/84--Trainee failed to uprange #2 pA in a timely
-fashion.
2/16/84--Trainee turned #2 pA range in wrong direction.
2/24/04--Trainee dropped transient control rod by pressing " air" button when intending to press "out" button in order to withdraw transient rod.
2/24/84--Trainee turned #1 range switch in wrong direction.
6/6/84--Trainee turned #2 pA range switch in wrong direction.
2 Spurious Scrams Attributed to Fuel Temperature Indicating Meter 19M1 8/23/83--Relay scram apparently coincident wi th f ailure of high voltage relay (part of a plasma physics experiment in an adjacent laboratory.) No upscale deflection of fuel temperature meters noted, and no power level or period indications indicating
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UWNR Annual Report 8 .
any power level changes before the scram.
9/13/83--Relay-scram with no indication of any change on any instrument.
18/4/83--Relay scram with no indication of any change on any instrument.
10/13/83--Rel ay scram, wi th momen tary noi sy upscal e fuel temperature meter deflection, which is typical of previous upscale-burnout behavior of a fuel thermocouple. Temperature indication was normal f ol l owi ng the scram, and connections and thermocouple resistances remained normal.
10/21/83--Rel ay scram wi th no upscal e defl ec t ion noted i
on any instrument. The thermocouple connected to the fuel
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temperature meter (41T) was replaced wi th a spare in the same Instrumented element (41C). Thermocouple 41T was still intact at the end of the report period, however, 11/3/83--Rel ay scram f rom f uel temperature meter, with indication of intermittent open thermocouple indication.
11/11/83--Relay scram from fuel temperature meter, with indication of intermittent open thermocouple indication.
Note See Section A5 for a description of corrective actions
- performed during the annual maintenance shutdown.
2/28/84--Relay scram concurrent with switching control element manual rundown switch to rundown position. No instrument response observed to indicate origin of scram and would not repeat l response.
3/20/84--Relay scram concurrent w.th control blade raise / lower switch operation. No instrument response observed, although two operators were observing console at the time of occurrence.
l These last two scrams are included under fuel temperature scrams even though it is not known that the fuel temperature scram was involved, since previous non-annunciated scrams seem to have originated in this channel. It should be noted that the frequency of such scrams decreased greatly since the .
Instrument was modified.
1 Scram Due To Loss of AC Power Source 5/29/84--Relay scram upon complete loss of AC power to the building due to external distribution problem.
D. HAINTENANCE Normal preventive maintenance kept equipment in good operating condition. See Section A.5 for modifications and Section E for any changes reportable under 10 CFR 59.59.
l E. CHANGES IN THE FACILITY OR PROCEDURES REPORTABLE UNDER 18 CFR 58.59 l Figures on pages 2-39 and 3-36 of the Safety Analysis Report indicate filters used in ventilation systems by manufacturer and model number. The model numbers indicated are not those l
l
UWNR Annuci R2 port 9 presently used by the manufacturer, but the fil ters presently used
. meet or exceed the specifications of the indicated filter combinations.
F. RADIOACTIVE WASTE DISPOSAL
- 1. Solid Waste No waste was transferred offsite during the year.
- 2. Liquid Waste There were two liquid waste discharges during the year. The concentrations at discharge were below MPC levels without considering dilution by the sewage discharge flow. Table 1 details the discharges to the sawer system.
- 3. Particulate and Gaseous Activity Released to the Atmosphere Table 2 presents information on stack discharges during the year.
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UWNR Annut.1 Roport 10 ,
TABLE 1 LIQUID WASTE TO SANITARY SEWER Annual Date of discharge 16 Nov 83 31 May 84 Total Total Activity Discharged (Microcuries) 210.40 98.67 309.07 Liquid Quantity Gallons 1550 1425 2975 Co MPC - 4E-3 Microcuries 2.38 6.20 8.58 Microcuries/ml 4.04E-7 --
Co MPC - 1E-3 Microcuries 1.86 7.16 9.02
, Microcuries/ml 2.49E-7 1.33E-6 Zn MPC - 3E-3 Microcuries 74.99 61.51 136.50 Microcuries/ml 1.28E-5 1.14E-6 Mn MPC - 4E-3 Microcuries 3.02 13.47 16.49 Microcuries/mi 5.16E-7 2.50E-6 Cr MPC - 5E-2 Microcuries 26.77 10.30 37.07 Microcuries/mi 4.57E-6 1.92E-6 Fe MPC - 2E-2 Microcuries 98.07 --
98.07 Microcuries/mi 1.45E-5 --
Fe MPC - 2E-3 Microcuries 1.82 --
1.82 Microcuries/ml 2.68E-7 --
Ra-226- MPC - 4E-7 Microcuries 1.50 --
1.50 Microcuries/ml 2.56E-7 --
All concentratio.es discharged were beirw MPC without accounting for dilution by sewage flow.
Average concentration at point of release to sewer = 2.75E-5 mi crocur i e s/ml . (Includes natural radioactivity)
Average daily sewage flow for dilution = 2.37E4 gallons.
Average yearly concentration = 9.4E-9 microcuries/ml.
UWNR Annual Roport 11 TABLE 2 EFFLUENT FROM STACK
- 1. Particulate Activity There was no discharge of particulate activity in excess of background levels.
- 2. Gaseous Activity - All Argon 41 Activity Maximum Instantaneous Average Stack Discharged Concentration Concentration Month (Curies) (Microcuries/ mix 18-6)
July '83 .8578 1.8 .8322 August .1812 1.1 .8565 September .1269 1.1 .8729 October .1415 0.9 .8789 November .1445 1.1 .8829 December .1984 1.1 .8578 January '84 .1662 1.5 .8998 February .8996 8.8 .8595 March .1913 2.8 .1838 April .2482 5.8 .1438 May .2187 1.8 .1228 June .1562 1.3 .8873 TOTAL 1.7525 5.8 (max i, mum) .8838 The NPC used is 2.4x18-5 microcuries/ml. This MPC is that calculated in the SAR to result in a concentration of 3x18-8 microcuries/mi in the area surrounding the laboratory.
The maximum instantaneous concentration released was 0.288 of MPC,
, while the average concentration released was 8.8834 of MPC.
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I UWNR Annuni Raport 12 .
G.
SUMMARY
OF RADIATION EXPOSURES (1 JULY 1983 - 30 JUNE 1984)
No excessive exposure of personnel to radiation j
( occurred during the year. The highest exposure for any employee l was 120 mrem whole body and 120 mrem skin which may be compared to the f ederall y permi ssibl e dose of 5,000 mrem per year. The highest annual dose for any student was 40 mrem whole body and 40 mrem skin.
Routine radiation and contamination surveys of the facility revealed no areas of high exposure rates or high contamination levels due to operation of the facility. l H. RESULTS OF ENVIR0ttiENTAL SURVEYS The environmental monitoring program at Wisconsin i consists of thermoluminescent dosimeters (LIF TLD service from Eberline) located in areas surrounding the reactor laboratory.
The tabl e bel ow l i sts doses f or persons con t inuousl y in the area for representative dosimeter readings.
Annual Dose Data--Environmental Monitors Location Average Dose Rate-mrem / week Inside Wall of Reactor 8.aboratory 5.0 1 1.43 Inside Reactor Laboratory Stack 1.72 1 0.11 Highest Dose Outside Reactor Labor- 2.84 1 0.51 atory (Reactor Lab roof entrance l windows Monitor adjacent to stone surface)
Highest Dose in Occupied Nonrestricted 1.47 1 0.05 Area (third floor classroom facing away from Reactor Lab - Room 314)
Average Dose .in Occupied Nonrestricted 1.30 1 0.18 Area Average Dose in All Unrestricted Areas 1.40 1 0.32 (29 Monitor Points) l i
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UWNR Annual Roport 13 I. PUBLICATIONS AND PRESENTATIONS ON WORK BASED ON REACTOR USE Nuclear Engineering Department K. R. Okula, W. F. Vogelsang, " Aspects of Tritium Release from Neutron-Irradiated Lithium Oxide," presented as a poster session paper at the Third Topical Meeting on Fusion Reactor Materi al s, Albuquerque, New Mexico, September 19-22, 1983.
Physics Department One publication and one PhD thesis about the polarized target are presently being written.
Soils Department Paul R. Anamosa, M.S. thesis, " Comparison of calculated and measured free cation activities of Cd and Zn in synthetic solutions and scil extracts," University of Wisconsin (1984).
Ronal d T. Checkal , PhD thesi s, " Cadmium uptake by plants from a mixed resin hydroponic system," University of Wisconsin (1984).
l Universi ty of Illinois at Urbana, Animal Science Department, David P. Holzgraefe, PhD thesis, " Influence of dietary alfalfa, orchard grass, hay and lasalocid on sow reproductive performance," University of Illinois at Urbana (1984).
University of Minnesota-Duluth George Rapp, Jr., James A11ert and Eller Henrickson, " Trace Element Discrimination of Discrete Sources of Native Copper,"
American Chemical Society, Washington, D. C. (1984).
George Rapp, Jr., " Native Copper and the Beginning of Smelting: Chemical Studies," sponsored'by the Pierldes Foundation in collaboration with the Department of Antiquities, Republic of Cyprus, June 1-6, (1981).
I
e University o f Wisconsin NUCLEAR REACTOR LABORATORY ADDRESS:
NUCLEAR dNGINEERING DEPARTMENT 130 MEC N ANIC AL ENGINEERING B UI LDIN G PNONE 242+33 92 AREA CODE 804 M A DISON, WISCONSIN 93706 July 19, 1984 James R. Miller, Chief Standardization and Special Projects Branch
! Division of Licensing U. S. Nuclear Regulatory Commission Washington, D. C. 20555
Dear Sir:
-Enclosed herewith is a copy of the Annual Report for the University of Wisconsin Nuclear Reactor Laboratory as required by our Technical Specifica-tions.
Very truly yours,
/ ' .
NM
. Cashwell Reactor Director
,- RJC:mid i
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Enc. (Annual Report 83-84)
~ Copy: U. S. Nuclear Regulatory Commission Reglon iII Office of Inspection and Enforcement Glen Ellyn, IL 60137 h
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