Text

Annual Environ Operating Rept Vol II - Radiological Environ Radiation Monitoring Program,1982
	ML20069H428
Person / Time
Site:	Cooper
Issue date:	03/15/1983
From:	Martin J; TELEDYNE ISOTOPES
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TTELEDYNE ISOTOPES NEBRASKA PUBLIC POWER DISTRICT COOPER NUCLEAR STATION ANNUAL

SUMMARY

REPORT 1982 ENVIRONMENTAL RADIATION MONITORING PROGRAM PREPARED BY TELEDYNE ISOTOPES 50 VAN BUREN AVENUE WESTWOOD, NEW JERSEY 07675 REPORT APPROVED BY: ,L x , v $

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MANAGER ENVIRONMENTAL ANALYSIS DEPARTMENT 8304060006 830315 PDR ADOCK 05000298 R PDR

TTELEDYNE ISOTOPES TABLE OF CONTENTS PAGE

. INTRODUCTION I !

LOCATION MAP 2 SAMPLING SCHEDULE AND ANALYSES 3 STATIONS AND RELATIVE POSITION TO ERP 6 REMPS TABLE - ANNUAL

SUMMARY

8 DISCUSSION, IMPACT ON ENVIRONMENT AND STATISTICAL TABLES 29 A and B. AIR PARTICULATES - GROSS BETA - GROSS ALPHA 30 C. CHARC0AL FILTER, I-131 39 D. COMPOSITE OF AIR PARTICULATE FILTERS - GAMMA 44 E. EGGS 47 F. FEED AND FORAGE - BEEF PRODUCERS 50 G and H. FOOD AND GARDEN CR0PS - APPLES-GARDEN VEGETABLES 53 I and J. FEED AND FORAGE - NEAREST MILK PRODUCERS-COMMERCIAL 58 MILK PRODUCERS K. FOOD AND FEED CR0PS 64 L. FISH 67 M and N. MILK - COMMERCIAL PRODUCERS AND NEAREST PRODUCERS 70

0. GROUNDWATER 75 P. RIVER WATER 78 RABBITS 81 Q.

R. AQUATIC VEGETATION 84 S. S0IL 85 T. THERM 0 LUMINESCENT 00SIMETERS 87

TTELEDYNE ISOTOPES INTRODUCTION

This report contains a complete tabulation of data collected during the period January to December 1982, for the operational Radiological Environ- ,

mental Monitoring Program performed for the Cooper Nuclear Station (CNS) of the Nebraska Public Power District (NPPD) by Teledyne Isotopes. Samples were collected in the environs of CNS by i; PPD and analyzed by the Teledyne Isotopes Laboratories in compliance with the Environmental Technical Specifications, Appendix B of the Cooper Nuclear Station Operating License.

Cooper Nuclear Station is located in Nemaha County in the southeast corner of Nebraska on the Missouri River. A portion of the site extends into Missouri. The reactor is a 778 megawatt boiling water reactor. Initial criticality was attained on February 21, 1974 The reactor reached 50% power on June 25, 1974 and 100% power on i;ovember 20, 1974.

Radiological environmental tronitoring began in 1971 before the plant became operational and has continued to the present. The program monitors

. radiation levels in air terrestrial and aquatic environments. Samples are collected by NPPD personnel. All are shipped for analysis to a contractor's laboratory where there exists special f acilities required for measurements of extremely low levels of radioactivity. From 1971 through 1976 the contractor was Teledyne Isotopes, Westwood, New Jersey. NALCO Environmental Sciences assumed responsibility for the analyses January 1, 1977. On November 1, 1978

, Hazelton Environment al Sciences Corporation assumed responsibility for the program. Prior to November 1,1978 Hazelton Environmental Sciences operated as NALC0 Environmental Sciences. Teledyne Isotooes again assumed responsibil-

. ity for the analyses effective January 1, 1979 through the present period, December 31, 1982.

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TABLE 1 Sampling schedule and analyses, 1982, Cooper Nuclear Station 1

WEEKLY Sample Type Station Nos. Analyses Airborne - Particulates 1 - 10 Gross a, S Gamma spec. on quarterly composite of each station and on samples with 6 levels > 300 dpm Airborne - Iodine 1 - 10 I-131 Feed and Forage - Beef 64,65(a),67,68,71,76 Gamma spec. on Producers (peak pasture monthly ccmposite only)

Milk - Nearest Producers 61, 74 I-131 (low level)

(peak pasture only) Sr-89, Sr-90 Elem.

Ca Gamma spec. on

. monthly composite MONTHLY Sample Type Station Nos. Analyses Feed and Forage - Beef 64,65(a),67,68,71,76 Gamma spec.

Producers (except peak pasture season)

Feed and Forage - 61, 74 Sr-89, Sr-90 Nearest Milk Producers Elem. Ca (peak pasture only) Gamma spec.

River Water 12, 13, 28 Gross a - sus and dis Gross B - sus and dis Sr-89, Sr-90 Gamma spec. and tritium on quarterly composite Milk - Nearest Producers 61, 74 I-131 (low level)

Sr-89, Sr-90 Elem Ca Gamma spec.

(a) Cattle sold; station discontinued after 05/03/82.

3

TTELEDYNE ISOTOPES 1

(continued) TABLE 1 QUARTERLY

. Sample Type Station Nos. Analyses Background Radiation 1 - 10, 15,18,22, TLD readout i 44,58,59 Feed and Forage - 61, 74 Sr-89, Sr-90 Nearest Milk Producers Elem. Ca '

(except peak pasture season) Gamma spec.

Feed and Forage 42, 73, 75 Sr-89, Sr-90 Commercial Milk Elem. Ca i Producers Ganma spec.

Ground Water 11, 47 Gross a, S Gamma spec.

Tritium Milk - Commercial 42, 73, 75 I-131 (low level)

Producers

Sr-89, Sr-90 r Elem. Ca Gamma spec.

, Eggs 42, 51, 67, 76 Gross 6 Sr-89, Sr-90

Elem. Ca Gamma spec.

2 TIMES / YEAR Sample Type Station Nos. Analyses Fish (Summer and Fall) 28, 35 Gross S Sr-89, Sr-90

, Gamma spec.

Aquatic Vegetation 12, 13, 28 Gross 6 l Sr-89, Sr-90 Gamma spec.

i ANNUALLY Sample Tyoe Station Nos. Analyses Food and Feed Crops 15,18,20,27,29 Gross S -

(at harvest) 38, 41 Sr-89, Sr-90 Elem. Ca Gamma spec.

4 i

l T TELEDYNE ISOTOPES (continued) TABLE 1 ANNUALLY

Sample Type Station Nos- Analyses Garden Crops 34(b),56,62 (at harvest) Gross D Sr-89, Sr-90 f

Elem, Ca Gamma spec.

! Apples 53, 54 (at harvest) Gross B Sr-89, Sr-90 Elem, Ca Gamma spec.

Rabbits 28, 35 (fall or early winter) Thyroid - I-131 i Femur - Sr-89, Sr-90 Muscle - Gamma spec.

ONCE EVERY THREE YEARS I

Sample Type Station Nos. Analyses Soil (Sampled in 1981) 2 - 10 Sr-90 Gamma spec.

(b) No crop at station 34 for 1982.

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TTELEDYNE ISOTOPES TABLE 2 NEBRASKA PUBLIC POWER DISTRICT COOPER NUCLEAR STATION BROWNVILLE, NEBRASKA DISTANCE AND DIRECTION FROM THE ELEVATED RELEASE POINT (ERP) TO THE

SAMPLE STATION LOCATIONS STATION DISTANCE DIRECTION NUMBER (MILES) (DEGREES) CLASSIFICATION (a) 1 .1 225 IND 2 .75 225 IND 3 2.5 338 IND 4 3.0 43 IND 5 3.5 102 IND 6 3.0 165 IND

! 7 2.5 230 IND i

8 2.5 260 IND 9 7.25 335 IND 10 10.0 160 IND 11 .15 225 IND 12 .1 360 CON 13 .25 120 IND 14 .5 140 P0 l 15 .51 180 IND 16 .75 202 NA 17 1.5 235 P0 .

18 .8 270 IND 19 1.0 300 P0 20 .96 315 IND 21 .6 46 P0 22 .7 95 IND 23 1.9 80 P0 24 3.0 97 P0 25 3.75 105 P0 26 3.0 130 P0 27 3.0 143 IND 28 1.8 150 IND 29 3.0 170 IND 30 5.0 178 P0 31 2.75 222 NA 32 3.4 268 PO 33 2.8 302 P0 34 2.5 333 IND 35 2.0 350 CON 36 3.6 335 P0 37 3.9 330 NA 38 4.0 360 IND 39 2.75 25 PO 6

TTELEDYNE ISOTOPES TABLE 2 NEBRASXA PUBLIC POWER DISTRICT COOPER NUCLEAR STATION BROWNVILLE, NEBRASKA DISTANCE AND DIRECTION FROM THE ELEVATED RELEASE POINT (ERP) TO THE SAMPLE STATION LOCATIONS STATION DISTANCE DIRECTION NUMBER (MILES) (DEGREES)__ CLASSIFICATION (a) 40 3.9 37 P0 1

41 8.4 11 IND 42 12.85 156 IND 43 11.75 217 NA 44 10.25 270 CON 45 4.0 325 NA 46 24.75 153 NA 47 25.75 154 IND 48 5.6 332 NA 49 11.4 222 NA 50 1.1 270 NA 51 4.2 125 IND 4

52' 7.4 79 NA 53 2.0 216 IND 54 5.2 320 IND

' . 55 1.75 270 NA 56 1.9 118 IND 57 6.6 208 NA 58 1.25 219 IND 59 1.0 189 IND 60 8.4 42 NA 61 3.5 326 IND 62 1.5 225 IND i 63 5.0 56 NA 64 2.25 99 IND 65 1.1 305 NA

! 66 4.5 200 NA 67 4.75 325 IND 68 3.4 270 IND

, 69 3.5 3 NA 70 3.5 3 NA 71 4.25 71 IND 72 3.75 39 NA i 73 10.0 35 IND 2.4 74 270 IND i 75 9.0 180 IND 76 5.3 212 IND (a) Classif' ation codes: IND = indicator; CON = control; P0 =

pre-operational sampling site not used in 1980-1981 s ampl ing program; NA = not active as of 1 January 1980.

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RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM

SUMMARY

i PATHWAY- AIRBORNc COMPILATION - ANNUAL

SUMMARY

NE94ASKA PUBLIC POWER DISTRICT SAMPLE - AIR PARTICULATE FILTERS CONTROL - COOPER NUCLE AR STATION UNITS - PCI/CU. M A*J AL Y S I S .N 3 LIMIT OF ALL INDICATOR SAMPLES LOCATION WITH HIGHEST MEAN CONTROL LO; ATION NON- REPORTING PERIOD DE TEC TION P.EAN x E-00 MEAN X E-00 NEAN x E-00 RCU TI NE MEAN X E-00 RANGE ST ATI ON FR ACT IOf4 RANSE RANGE FRACTION STATI0a DESCRIPTIO4 FRACTION t

, GR-A 520 0.0020 0.0023 0.002T 0 12/28/81-12/28/82 0.0021 - 0.0027 06 020/052 0.0014 - 0.0078 236/520 STATION 06 - 3.0 MI. 165 DEG. IN D .

GR-B 520 0.0030 0.02T 0.031 0 12/28/81-12/28/82 1

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0.018 - 0.031 05 052/052 0.011 - 0.11 519/520 STATION 05 - 3.5 MI. 102 DEG. I'40.

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RADIOLOGIC AL E AVIRONMENT AL MONITORING PR3GR AM $UM1ARY P AT HdtY- AIRSOR*lE COMPI L ATIO*J - A?tNU AL SUM 1 ARY NEBRASKA PUBLIC POWER O!5TRICT S awPL E - CHARC0t.L FILTER $ CONTROL - COOPER taVCLEAR STATION c'4 I T S - PCI/CU. M ANALYSIS N3 LIMIT OF ALL INDICATOR SAMPLES LOCAT ION W ITH HIGHEST ME AN CONT 4GL LOCATION NON- REPORTING PERIDO DE TEC TION ME AN X E-00 M E A*1 X E-00 ME Ar4 X E-CC RCUTI NE FEAN X E-C0 RAN",E S T ATIO*J FR ACT I0td R A!4GE R A 4GE FRACTION STATION DESCRIPTIO1 FRACTION '

I-13I $20 0.0300 LT 100. 0 12/28/81-12/28/82 '

LT 60.0 -LT 100.

000/520 i t

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R ADIOLOGIC AL ENVIRONMENT AL MONITORING PROGR AM SUMMA %Y PATHWAY- INGESTI31 COMPILATICN - ANNUAL

SUMMARY

NESRASKA PUBLIC PCWER DISTRICT S AvPL E - FEED C FORAGE - BEEF PRODUCE R S CONTROL - COOPER t;U; LEAR STATION UNITS - PCI/GM WET ANALYSIS N3 LIMIT OF ALL IN31CATOR SAMPLES LOCAT ION WITH HIGHEST MEAN CONT 40L LO;4 TION NON- REPORTIt4G PERIOD DETECTION MEAN X E-00 MEAN X E-C0 f1EAN X E-00 RCUTINE MEAN X E-00 RANGE ST AT10N FR ACT ION RANGE RANGE FRACTION S T AT IO*4 DESCRIPTIO4 FRACTION BE-7 76 0.310 4.91 8.05 0 01/04/82-12/07/82 l 1.14 -

8.05 67 004/014 2.38 -

10.6 037/076 ST ATION 67 - 4.75 MI . 325 DEC. IND.

K-40 76 0.470 13.2 16.9 0 01/04/82-12/07/82 8.32 -

16.9 64 014/014 4.07 -

29.6 076/076 STATION 64 - 2.25 MI. 99 OEG. IND.

1-131 76 0.0310 LT 0.600 0 01/04/82-12/07/82 LT 0.100 -LT 0.600 000/076 w

f)

CS-137 76 0.0470 0.0691 0.164 0 01/04/82-12/07/82 0.0211 - 0.164 76 002/014 0.117 - 0.211 010/076 STATION 76 - 5.3 MI. 212 DEG. IND.

CE-144 76 0.160 0.550 , 0.670 0 01/04/82-12/07/82 0.426 - 0.670 64 001/014 0.670 - 0.670 003/076 S T ATI ON 64 - 2.25 MI. 99 DEG. IND.

i RA-226 76 0.0930 1.02 1.02 0 01/06/82-12/07/82 1 02 -

1.02 68 001/014 1.02 -

1.02 001/076 ST ATION 68 - 3.4 MI. 270 DEO. IND.

i TH-228 76 0.120 0.144 0.156 0 01/04/82-12/07/82 0.132 - 0.156 64 001/014 0.156 - 0.156 002/076 STATION 64 - 2.25 MI. 99 DEG. IND.

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E

.J O >= I e- >= >= 6 >=

J MW 4 9 44 N4 44 44 N4 g 4 &> > 0 ek de ek mb ek e U YZ M 8 M M M M M 3

== 00 O O OO M 4 g, O uJ I O O e4 g,,

.J e 4 O m N ,

O CL 4 O O O O n g

- E 9 N 4 O O O M y 4O e O e o e o O I e et MO I O e oO OO eO ew .

I O e N ,

CC Y W us 8

a N O O O m n O O m C

>= x 7 t$ 4 9

e 4

e e >= O.e6 e e e et et l O m O .J O .J O en u2m e l I e e e p .a.

e.= et 23 4 4 0 -e 4 4 4 a O uJ OI O O OO OO we O O g 3

2E == 0 00 0 >= 0 0 >NO NO O g me >= 4 4% % .J O N .J O % O% e% g g O4 ed OO OO O4 O4 U.r 6 *O eO eO eO eO eO g

.J J cc e OO .e o OO OO OO -e o o er m6 g M O %

CL ?O $

>=

0 u. O s e t- g, af O = us e .J J -

U M 0 O n i D. U M 0

e O m m o g-m O O M g 7 em tu 3 O O 4 W >= e O e

.K. e>u= =n e o e e

? O LJ t g O *== 0 0 C o n rif3 J O we e g

e= 4 7 9 4

>0Y l

=*

MNO I e kJ O % M 3 4 4 ** 4 4 4 g O n ** ? I 3

?OO I

== u. 1 I es 9 6 9 l l M 0 f g O r;

> ** I

% ue et tu M i 8

r .J M > g O .J P O 3 CL >= J 0 K to CL s3 e O 4

m~ k == st 9 e T 8 9 m 7 4 m 4 5 4 I we 4 *! 7 9 M

CL M 3 et l V O M M aC i

13 l

. - - - -- . -. . . . - _ .- . . _ . - -. - - . --. - . . . - . - . . .=

s L

RADIOLOGICAL ENVIRONMEt4T AL MONITORING PROGRAM

SUMMARY

P Af ttW AY- INGESTION COMPILATION - ANNUAL

SUMMARY

NE8RASKA PUBLIC PCWER DISTRICT S AMPL E - F330/G A10E*4 CROPS CO*4 TROL - COOPER t4UCLE AR ST ATION UNITS - PCI/GM WET ANALYSIS N3 LIMIT OF ALL INDICATOR SAMPLES LOCAT ION WITH HIGHEST MEAN CONTROL LOCATION f40N REPORTING PERIO3' DETECTIOf4 ME Ard X E-00 M E A*4 X E-00 MEAN X E-00 RCUTINE MEAN X E-C0 RAr4G E ST ATIOr4 FR ACT IOr4 RANGE RANCE FR4CTION S T AT IUr4 DESCR IPT IO 4 FR4CTION 1-131 4 0.0310 LT 0.0200 0 08/16/82-09/13/82 LT 'r0100 -LT

. 0.0200 O/004 i CS-137 4 0.0310 0.0100 0 08/16/82-07/13/82' (T b.0:suo-LT 0.0100 000/SQ4 s

i I

_ ~ . ~ . _ - - -. - .- . _ . _ _ .- - - - .. - _ . -

RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM

SUMMARY

PATHWAY . INGESTION COMPILATION - ANNUAL

SUMMARY

NEBRASKA PUBLIC POWER DISTRICT SA.vPLE - FEED AND FORAGE . MILK PRODUCERS CONTROL - COOPER NUCLEAR STATION i UNITS PCI/GM WET (NEAREST)

ANALYSIS NO LIMIT OF ALL INDICATOR SAMPLES LOCATION WITH HIGHEST MEAN CONTROL LOCATION NON. REPORTING PERIOD '

DETECTION MEAN X E-00 MEAN X E-00 MEAh X E-00 ROUTINE MEAN X E-00 RANGE STATION FRACTION RANGE RANGE ,

FRACTION STATION DESCRIPTION FRACTION CA MG/GM 16 3.4 5.4 0 01/04/82 10/04/S2 i 1.3 5.4 74 005/005 1.80 11.0 -

I 016/016 STATION 74 - 2.4 MI. 270 DEG. IND.

SR-89 16 0.60 LT 0.08 0 01/04/82 10/04/82 :

LT 0.02 -LT 0.08 !

000/016 SR.90 16 0.60 0.060 0.086 0.034 -

0.086 74 005/008 0.014 0.15 0 01/04/82-10/04/82 008/016 STATION 74 - 2.4 MI. 270 DEG. IND.

SE.7 16 0.310 2.05 2.15 0 01/04/82-10/04/82 1.95 - 2.15 61 004/008 1.67 2.66 008/016 STATION 61 - 12.85 MI. 156 DEG. IND.

Un K-40 16 0.470 9.73 13.18 0 01/04/82 10/04/22 6.28 . 13.18 74 008/008 8.33. 27.90 009/009 STATION 74 - 2.4 Hl. 270 DEG. IND.

I.131 16 0.0310 LT 0.200 0 01/04/82 10/04/82 LT 0.0400 .LT 0.200 CS-137 16 0.0470 0.0240 0.0240 0.018 -

0.032 74 003/008 0.018 0.032 0 01/04/82-10/04/82 003/016 STATION 74 - 2.4 MI. 270 DEG. IND.

RA.226 16 0.0930 0.512 0.512 0 01/04/82 10/04/82 0.364 0.660 74 002/008 0.364 0.660 002/016 STATION 74 - 2.4 Hl. 270 DEG. IND.

TH.228 16 0.120 0.208 0.208 0 01/04/82 10/04/82 0.104 0.476 74 004/008 0.104 0.476 004/016 STATION 74 - 2.4 MI. 270 DEG. IND. ,

RADIOLOGICAL ENVIRONMENTAL MONITORIN:3 PROGRAM

SUMMARY

PATHWAY . INGESTION COMPILATION - ANNUAL

SUMMARY

NEBRA5KA PUSLIC POWER DISTRICT SAMPLE - FEED AND FORAGE MILK PRODUCERS CONTROL - COOPER NUCLEAR STATION UNITS - PCI/GM WET (COMMERCIAL)

ANALYSIS NO LIMIT OF ALL INDICATOR SAMPLES LOCATION WITH HIGHEST MEAN CONTROL LOCATION NON. REPORTING PERIOD DETECTION MEAN X E-00 MEAN X E.00 MEAN X E.00 ROUT]NE MEAN X E-00 RANGE STATION FRACi!ON RANGE RANGE FRACTION STATION DESCRIPTION FRACTION CA MG/GM 15 3.21 6.72 0 01/11/S2-10/11/Ei 1.90 6.72 73 005/005 0.41 15.0 015/015 STATION 73 - 10.0 MI. 35 DEG. IND.

SR-89 15 0.60 LT 0.05 0 01/11/82 10/11/82 LT 0.009 .LT 0.05 000/015

SR-90 15 0.60 0.038 0.067 0.015 .

0.067 73 005/005 0.017 0.13 0 01/11/82 10/11/85 j 014/015 STATION 73 - 10.0 MI. 35 DEG. IND.

l BE.7 15 0.310 1.3 1.80 0 01/11/82 10/11/83 1 0.72 .

1.8 42 003/005 1.94 3.09

010/015 STATION 42 - 12.85 MI. 145 DEG. IND.

K-40 15 0.470 8.93 13.61 0 01/11/82-10/11/S) i 5.53 -

13.61 73 005/005 3.77. 27.0 j 015/015 STATION 73 - 10.0 MI. 35 DEG. IND..

! I-131 15 0.0300 LT 0.09 0 01/11/82 10/11/82

! LT 0.0300 .LT 0.09 000/015 CS-137 15 0. 0 e'7 0 0.004 0.086 0 01/11/82-10/11/86 1 0.002 -

0.086 73 001/005 0.086 0.086 001/015 STATION 73 - 10.0 MI. 35 DEG. IND.

RA.226 15 0.0930 LT 0.9 LT 0.9 -LT 0.9 0 01/11/82-10/11/83 j 000/015 TH.228 15 0.120 LT 0.08 0 01/11/82 10/11/88 L1 0.030 -LT 0.080 000/015

O 9 PJ Cu N N N N N !

O $ = l co ID co to co do ao O E $ % % % % % %

O %

- I O O O O O O O E CL $ N N N N N N

>= UJ N

$ % % % % N N %

M E e & & e & & &

= P

. 0 C O O O O O O O uJ Z I a" I O O O O O O EO P == g O

DJ == 0 == g 3 >= Z3 0

. U *C O CL *= ct 8

1. 9 5 0 2 8 e.e E I Jq .O. t cD us kO $

3 .J 4O I i (L U et i I 3 O us uJ e 4 .T .J d i M MN e ME J at t 4 UJ O7E E E fL N et 7 e eO >= us Og

> WO 7E == 4 er ZU O >= 0

t U Ul F er 8 Y E 9 l' 3 E 8 H

I T C

I g P=

P e e er 3 *

mO 4O O NO CD o e O O2 42 CD 2 O O e ey e e~ e == o=

ct zO g M == m 7e O O n CL *t 0 4 M P=

P *

uJ uJ uJ t e o m O 4 O to O O S- L*'* e N O O O su 4 us cD qJ Z MZOt e fW *OW e i O

IO

IO me > t= at = 0 M Q M O O O e er cr M .** cr 6- I ed O O O O at uJ -t g O O e= -e ee s- E I us .a

. e o o mM 4m cD e cD

- E OE CC I P* m m O 4 CD M 3 = Ut e e * * *

e

O M = me .e o M e O == 0 == m == .

E uJ t ** e=e == E E E

.J I OI E E J <r n.- e o o .*

4 D ** 2 "Y 0 0 0 C' O m s= 2 2 OOg .4 e a w e e o Z 7 == mo E O4 O4 OO OO OO tu at z H >= 1 O O O O O E O U4 4 % I % 8 % 0 % 8 Z 4 == ** e= 4 ** pe

% I e.e ** eie O e.- Ee4 O ce oe oO OO E 2 *C Oe L 9 Om Om ON ON Ow

== Q U 1

. - O z i z z z z z a- >- J O I O O O uJ 4J == I . = . O.

. w == O.

.J O >= I >= n= k > >-

J *= E (L >

t 4 CD =T ED *C O *C O <t c4

t t= 1 m >= m >= N >* N >= e.e >=

U E2 t/l 8 t/) t/% tt) M M e= OO O UU i/t t O tu I O

-.8 J l O t= P O O A 6 N m 4 m 4

== E t P= 0 0 4 (D o O at O $ e e e e e e e at n/1 O I ** m O O O m OO E 8 9 ee O m m o E uJ uJ l m N N P m 4 O t3 I n N O O m O O

>= M 2 4 e o e >= e e e e 6=

et <! 9 O ED O -J O O m OJ I I I q U. =t

e. ZE 2g cc e cD 0

to 1

so 1

CD 0

e 3

O uJ OI O O OO O O O OO EE == 0 4O O >= m O OO NO O t- O O

== De t .4 % % .J O % NN M% 5% .J N N OI C to P to OO O4 m4 t= c0 00 M

J er i eo eo eO eO eO eo eO Q-

.J cr e OO mO OO OO OO .= 0 00 er wI O O Cf 7O g i=8 LL O t 0 9= t=

0 = UJ 9 a,J Q H g

.J L*J >= U x W e O O

== W e O O O m N La-E *= 2 e C o o N P we 7 == W at I e e e o e e CO

=Z

.J O aos e 4 O O en O O L s

HM E 6 M C B usO ri e ID ID E0 ED ED CD e oO .N. ,-= g 70y g

== b 0. e

I

$ $ I M e T

> ** O O ef tu M g %

4 .J M > $ 0 P O e4 Z CL D* .J l E cc 40 e f* O m t= 1 == *t 4 g t t 4 4 .4 4 *t 2 .' 9 4 E E E W 9 0 EL M 3 *t 0 O O M wt 4D W =

17

I RADIOLOGICAL ENVIRONMENT AL MONITORING PROGR AM

SUMMARY

PATHWAY- IN GE STION COMPILATION - ANNOAL

SUMMARY

NEDRASKA PU3LIC PChER DISTRICT S AMPL E - FCOD AND FEED CROPS CONTROL - COOPER NUCLEAR STATION I

U*i t T S - PCI/GM WET ANALYSIS F43 LIMIT OF ALL IN3!CATOR SAMPLES LOCATION WITH HIGHEST MEAN CONT 40L LO;ATION NON- REPORTING PERIO3 DETECTION MEAN x E-00 MEAN x E-00 MEAN x E-00 R OU TI t4E FEAN x E-00 RANGE 5T AT10N FR ACT ION RANGE R AN#,E FRACTION S T AT 104 OESCRIPTION FRACTION I

l CS-137 8 0.160 LT 0.0200 0 09/20/82-09/20/82

! LT 0.00700-LT 0.0200

,) 000/008 I

k H

CD t

i 1

I

R ADIOLOGIC AL ENVIRONMENT AL MONITORING PROGR AM

SUMMARY

PATHWAY- INGESTION COMPILATION - ANNUAL

SUMMARY

NE0R ASK A PUBLIC POWER OISTRICT S AMPL E - F ! 5H CONTROL - CO3 PEA tfUCLEAR STATION UNITS - PCI/GM WET ANALYSIS N3 LIMIT OF ALL INDICATOR SAMPLES LOCAT ION WITH HIGHEST MEAN CONTROL LOSATION NCN- REPORTING PERIOD DETECTION MEAN X E-00 MEAN X E-00 MEAN X E-00 R OU TI NE MEAN X E-C0 RAN3E ST ATION FR ACT ION RANGE RANGE FR AC TION STATION DESCRIPTIO1 FRACTION

.-----.------------- --------------------- --------- ....-------------.--------- --------------------- ---- - =...........

GR-B 10 0.25 5.0 5.5 0 08/02/82-11/15/82

4. 5 -

5.5 35 005/005 4.9 -

T.3 010/010 STATION 35 - 2.0 MI. 350 DEG. CON.

SR-89 10 0.030 LT 0.030 0 08/02/82-11/15/82 LT 0.020 -LT 0.030 000/010 SR-90 10 0.030 0.014 0.020 0 08/02/82-11/15/82 0.0096 - 0.020 35 004/005 0.0052 - 0.034 008/010 STATION 35 - 2.0 MI. 350 DEG. CON.

5 2.68 0 08/02/82-11/15/82 G-40 10 0.470 2.28 1 89 - 2.68 35 005/005 2.09 -

2.98 010/010 STATION 35 - 2.0 Mt. 350 DEG. CON.

I-131 10 0.0310 LT 0.0600 0 08/02/82-11/15/82 LT 0.0600 -LT 0.0600 000/010 CS-137 10 0.0310 LT 0.0100 0 08/02/82-11/15/82 LT 0.00900-LT 0.0100 000/010

.._l

4 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM

SUMMARY

PATHWAY . INGESTION COMPILATION - ANNUAL

SUMMARY

NEBRASKA PUBLIC POWER DISTRICT S A?LE - MILK COMMERCI AL PRODUCERS CONTROL . COOPER NUCLEAR STATION UNITS PCI/ LITER ANALYSIS NO LIMIT OF ALL IN0!CATOR SAMPLES LOCATION WITH HIGHEST MEAN CONTROL LOCATION NON. REPORTING PERIOD DETECTION MEAN X E-00 MEAN X E-00 MEAN X E-00 ROUTINE MEAN X E-00 RANGE STATION FRACTION RANGE RANGE FRACTION STATION DESCRIPTION FRACTION CA VG/GM 11 1.83 2.73 0 01/18/82-10/18/82 0.90 2.73 42 004/004 2.70 2.80

011/011 STATION 42 - 12.85 MI. 156 OEG. INO.

I-131 11 0.78 LT 0.40 BY CHEMICAL SEPARATION O 01/18/82-10/18/82 LT 0.20 -LT 0.40 000/011 ,

LOST 3 LT 0.00000 (a)(b) LT 0.000000.LT 0.00000 0 01/18/82 10/18/82 000/000 SR-89 11 2.0 LT 2.0 0 01/18/82-10/18/82

$ 05 /011 SR.90 11 1.4 2.68 S.00 0 01/18/82-10/18/82 1.23 -

5.00 73 003/003 3.9 6.2 011/011 STATION 73 - 10.0 MI. 35 OEG. IND.

K-40 11 140. 1130. 1220.

994 -

1220. 75 004/004 1150. 1310.

011/011 STATION 75 - 9.0 MI. 180 DEG. INO..

i 1-131 11 0.780 LT 20.0 0 01/18/82-10/18/82 LT 8.0 _LT 20.0 000/011 (a) January 18, Station 73 - No sample available; cows dry.

(b) January 18. Station 75 . No sample ava11mbic; collected 01/25.

April 19. Station 75 - Sample lost in transit; replaced 04/26.

.. . ~ . . _ _ . --. . . . - - - . . - _ . . . ~ .

i l

l

( RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM

SUMMARY

' PATHWAY - INGESTION COMPILATION . ANNUAL

SUMMARY

NEBRASKA FUBLIC POWER DISTRICT SAvPLE - MILK COMMERCIAL PRODUCERS CONTROL - COOPER NUCLEAR STATION i UNITS - PCI/ LITER i

i ANALYSIS NO LIMIT OF ALL INDICATOR SAMPLES LOCATION WITH HIGHEST MEAN CONTROL LOCATION NON. REPORTING PERIOD '

i DETECTION MEAN X E 00 MEAN X E-00 MEAN X E-00 ROUTINE i

HEAN X E-00 RANGE STATION FRACTION RANGE RANGE FRACTION STATION DESCRIPTION FRACTION

) 10.0 ;

, CS-137 11 9.00 10.0 47 10.0 10.0 10 0 .

10.0 STATION 42 - 12.85 MI. 156 DEG. IND. 0 01/18/82-10/18/S2 l TH.228 11 31.0 LT 10.0 0 01/18/82-10/18/82 LT 10.0 LT 10.0 000/011 j

N

~

t I

}

i i

i

RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM

SUMMARY

PATHWAY . INGESTION COMPILATION - ANNUAL

SUMMARY

NEBRASKA PUBLIC POWER DISTRICT

! SAMPLE MILK NEAREST PRODUCERS CONTROL . COOPER NUCLEAR STATION UNITS - PCI/ LITER

ANALYSIS NO LIMIT OF ALL INDICATOR SAMPLES LOCATION WITH HIGHEST MEAN CONTROL LOCATION NON. REPORTING PERIO{

MEAN X E.00 t

DETECTION MEAN X E-00 MEAN X E-00 ROUTINE MEAN X E.00 RANGE STATION FRACTION RANGE RANGE FRACTION STATION DESCRIPTION FRACTION CA MG/GM 27 1.55 1.55 0 01/11/82-12/14/f 4

1.54 1.55 61 013/013 1.20 2.00 027/027 STATION 61 - 3.5 MI. 326 DEG. IND.

I-131 60 0.78 LT 0.50 LT 0.20 .LT 0.50 0 01/11/82-12/14/t 000/060 i SR 89 27 2.0 LT 2.0 l LT 2.0 -LT 2.0 0 01/11/82-12/14/t sa 000/027 s

SR.90 27 1.4 1.55 1.74 1.36 1.74 0 01/11/82 12/14/6 1 -

61 013/013 0.45 3.5

) 027/027 STATION 61 3.5 MI. 326 DEG. IND.

i t

K.40 27 140. 1170. 1230. 0 01/11/82-12/14/4 1110. .

1230. 74 014/014 957, 1810.

027/027 STATION 74 2.4 MI. 270 DEG. IND..

I-131 27 0.780 LT 50.0 LT 10.0 -LT 50.0 0 01/11/82-12/14/3 000/027

, CS-137 27 9.00 LT 7.00 LT 7.00 -LT 7.00 0 01/11/82-12/14/1 000/027 l TH.228 27 31.0 LT 20.0 l LT 20.0 LT 20.0 0 01/11/82-12/14/4 l

000/027

_ _ _ . _ _ ._ , . - . . , - , ._ ._ _ _ _ . . . ~ _ _ _ _ _ . _ _ _ . _

f R ADIOLOGIC AL ENVIRONMENT AL MONITORING PR3 GRAM

SUMMARY

} P AT Hw AY. W A TER 801NE CGMPILATION - ANNUAL

SUMMARY

NEBRASKA PUSLIC PCWER DI ST RI CT La*PL E - WATER - GROUND CONTROL - CUDPER NUC L E AR STATION UNITS - PCI/ LITER i ANALYSIS N3 LIMIT OF ALL INDICATOR SAMPLES LOCAT ION WITH HIGHEST ME AN CONTROL LO; A TION NON- REPORTING PER100 DE TECTION MEAN X E-00 MEAN X E-00 MEAN X E-00 ROUTINE

! r.EAN x E-00 RANGE ST ATION FR ACT ION RANGE RANGE FRACTION S T AT IO.4 DES CR IPT IO1 FRACTION

............--=__ _ ------------------------------------- ---------- ---------- ---- -----------------

GR-A 8 0.80 1.8 18 0 01/25/82-10/25/82 1.8 -

1.8 11 001/004 1.8 -

1.8 001/008 ST ATION 11 - 0 15 MI. 225 DdG. INO.

GR-8 8 1.4 8.3 8.5 0 01/25/82-10/25/82

8. 0 -

8.5 47 004/004 5.8 -

12.

l 008/008 STATION 47 - 25.75 MI. 154 DEG. INO.

ra j w I-131 8 9.00 LT 20 0 0 01/25/82-10/25/32

~

LT 20.0 -LT 20.0 000/008 CS-137 8 9.00 LT 7.00 0 01/25/82-10/25/S2 LT 6.00 -LT 7.00 l 000/008 t H-3 8 140. 160. 200. 0 01/25/82-10/25/82 130. -

200. 47 004/004 150. - 320.

, 008/008 STATION 47 - 25.7 5 M I . 154 DEG. IND.

)

i t

J

l 1

i RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM

SUMMARY

PATHWAY- WATER 8ORNE COMPILATICN - ANNUAL

SUMMARY

NE8R ASK A PUBLIC POWER DI STRICT SAMPLE - WATER - RIVER CONTROL - ST AT ION 12 - 0.1 MI. 360 DEG. 20 COOPER NUCLEAR STATION UNITS - PCI/ LITER AN AL Y S I S N3 LIMIT OF ALL IN0!CATOR SAMPLES LOCAT ION WITH HIGHEST ME AN CONTROL LOCATION NON- REPORTING PERIO2 OE TEC TION MEAN X E-00 MEAN X E-00 MEAN X E-00 R CU TI NE i MEAN X E-00 RANGE S TATION FR ACTION RANGE R ANr.E l FR AC TI ON STATION DESCRIPTION FRACTION

______._____.______._____ ...__________________ _____________________________________ __.... ___________ -- ____ _______________ c GR-A DIS 36 0.80 4.5 4.6 4.4 0 01/12/82-12/07/82 4.4 - 4.6 13 002/012 4.4 -

4.9 2.6 -

8.1 006/036 S T A TI ON 13 - 0.25 MI. 120 CEG. IND. 003/012 GR-A SUS 36 0.80 7.2 8.1 8. 0 1 01/12/82-12/07/82 5.4 -

81 28 000/012 1.9 -

40. 1.2 -

19.

017/036 STATION 23 - 1.8 MI. 150 DEG. IND. 004/012 GR-8 DIS 36 1.4 10. 10. I C. 0 01/12/82-12/07/82

9. 7 -

10. 12 012/012 4.8 -

21. 48 -

21.

! 036/036 S T ATION 12 - 0.1 MI. 360 DEG. CON. 012/012 l

1 2 GR-8 SUS 36 14 16. 23. 13. 1 01/12/82-12/07/82 I 11. -

23. 28 011/012 1.5 - 150. 0.91 -

65.

033/036 STATION 28 - 1.0 MI. 150 DEG. IND. 011/012

! SR-89 36 1.1 LT 1.0 LT 10 0 01/12/82-12/07/82

{ LT 1. 0 -LT 1.0 LT 0.80 -LT 1.0 l 000/036 000/012 54-90 36 0.93 0.76 0.76 LT C.90 0 01/12/82-12/07/82 0.76 -

0.76 13 001/012 0.76 -

0.76 LT 0.40 -LT 0.90 001/036 STATION 13 - 0 25 MI. 120 OEG. IND. 000/012 1-131 12 9.00 LT2000. LT2000. 0 01/12/82-12/07/82 LT2000. -LT2000. LT 30.0 -LT2CCO.

000/012 000/004 I

e e

l I

l 8

RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM

SUMMARY

i PATHWAY- W A TE R BOR N E COMPILATION -

ANNUAL $UMMARY NEBRASKA PUSLIC POWER DISTRICT l SAMPLE - WATER - RIVER CD'4 TROL - ST ATION 12 - 0 1 Hl. 360 DEG. 00 CO3PER NUCLEAR STATION UNITS - PCI/L I TER I

ANALYSIS NO LIMIT OF ALL INDICATOR S A?'PLES LOCAT ION WITH HIGHEST ME AN CONTROL LOCATION NON- RE PORTING PERIOD OETECTION MEAN X E-00 MEAN X E-00 PEAN X E-00 ROUTI NE MEAN X E-C0 RANJE STATION FRACTION RANGE RANOE FRACTION STATION DESCRIPTIO1 FRACTION 1

4 CS-137 12 9.00 LT 7.00 LT 7.00 0 01/12/82-12/07/S2 LT 6.00 -LT 7.00 LT 5.00 -LT 7.00 000/012 000/004 '

H-3 12 140. 180. 220. 140. 0 01/12/82-12/07/82 l 140. -

220. 13 004/004 100. - 410. 120. -

170.

012/012 STATION 13 - 0.25 MI. 120 OEG. INO. 004/004 1

l w

V 1

i l

l i

t a

i t

I RADIOLOGICAL ENVIRONMENT AL MONITORING PR3GR AM

SUMMARY

l PATHdAY. INGE S T IO*4 COMPILATION - ANNUAL

SUMMARY

NE8R A SK A PUBLIC PCWER DISTRICT l SA"PLE - RABBITS ANIMALS CONTROL - C0]PER NUCLEAA STATION

{ UNITS - PCI/GM WET i A*4ALYSIS '43 LIMIT OF ALL INDICATOR SAMPLES LOCATION WITH HIGHEST MEAN CONTROL LOC A TION NON. REPORTING PE4100 DE TE C T IO:4 MEAN X E-00 MEAN X E-00 MEAN K E-00 ROUTINE P E A*4 x E-00 RANGE S T ATION FR ACT ION RANGE RANGE ,

FR40 TID STATION DESCRIPT!04 FRACTION

____................____.....__'4 _..__________..______...__________.__....................________.____......___-----_.__

I I

I-131 4 LT 20 BY CHEMICAL SEPARATION O 11/04/82-11/15/82 j IHfROID LT 10 -LT 2.0 l 000/004 I

! SR-89 4 LT 0 30 0 11/04/82-11/15/82

. FEMUR LT 0.30 -LT 0.30

! 000/004 l

1

! SR-90 4 0.22 0.24 0 11/04/82-11/15/82 F E *:U R 0.21 - 0.24 28 002/002 0.20 - 0.28 I

004/004 STATION 23 - 1.8 MI. 150 DEG. IND.

I i ta l K-40 4 2.95 3.12 0 11/04/82-11/15/S2 i

HUSCLE 2 78 -

3.12 35 002/002 2.26 -

3.98 004/004 STATION 35 - 2.0 MI. 350 DEG. C3N.

I-131 4 LT 0.400 0 11/04/82-11/15/02

' HUSCLE LT 0.300 -LT 0.400 000/004

CS-13T 4 LT 0.0600 0 11/04/82-11/15/82 MUSCLE LT 0.0500 -LT 0.0600 000/004 i

i i

6 i

- . , _ . _ . ..- . .- . .- -= .- .-- - . . - _ . . .- _ .- . ~ - , - . . . . . . _ _ . - _ . _ . _ . . = _ .

i R ADIOLOGIC AL ENVIRONMENTAL MONITOR ING PROGR AM

SUMMARY

l i PATHWAY- AQUATIC COMPILATION - ANNUAL SUMMA 47 NEBRASKA PUBLIC POWER DISTRICT i

S AMPL E - VEGE T A TION - AQUATIO CONTRCL - ST ATION 12 - 0.1 MI. 360 DEG. 00 CO3PER NUOLEAR STATION l

UNITS - PCI/GM WET I

ANALYSIS NO LIMI T OF ALL IN01CATOR SAMPLES LOCATION WITH HIGHEST MEAN CONTROL LOCATICN NON- REPORTING PERIOD DETECTION MEAN X E-00 MEAN X E-00 MEAN X E R OU TI r4E ,

NEAN X E-00 RANGS STATION FRACTION RANGE RANGE

, FRACTION STATION DESCRIPTIO4 FRACTION l

i l

SAMPLE 0.00000 LT C.C0000 3 LT 0 10/15/82-10/15/82 1 LT 0.00000-LT 0.00000 LT9900. -LT 0.00000 000/003 000/001 i

i i

I l

i j g3 NO SAMPLES OF AQUATIC VEGETATION WERE COLLECTED IN 1982I THERE WAS NO GROWTH.

i r 2

b T

i 1

I

RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM

SUMMARY

PATHWAY . GAMMA EXPOSURE COMPILATION - ANNUAL

SUMMARY

NEBRASKA PUBLIC POWER DISTRICT SAMPLE - ENVIRGNMENTAL TLD CONTROL - COOPER NUCLEAR STATION UNITS - mR/ YEAR ANALYSIS NO LIMIT OF ALL INDICATOR SAMPLES LOCATION WITH HIGHEST MEAN CONTROL LOCATION NON- REPORTING PERIOD DETECTION MEAN X E-00 MEAN X E.00 MEAN X E.00 ROUTINE MEAN X E.00 RAhGE STATION FRACTION RANGE RANGE FRACTION STATION DESCRIPTION FRACTION TLD 63 2mR 82 164 (a) 0 01/04/82 01/04/83 Exposure / year 69 - 164 STATION 01 063/063 01 0.1 MI. 22S DEG. IND.

l (a) TLD from station 18 for second quarter missing due to vandalism.

'rl

' ' ~ ~ '

TTELEDYNE ISOTOPES DISCUSSIO:1, IMPACT ON TriE E!4VIR0f; MENT AND STATISTICAL TABLES 29

TTELEDYNE ISOTOPES A and B. AIR PARTICULATE SAMPLES - GROSS BETA AND GROSS ALPHA (See Tables A A-4, B B-4 STATIONS 01 to 10 l

Air particulates were collected continuously on membrane filters which were changed weekly at Stations 01 through 10. The filters were shipped to Teledyne Isotopes and analyzed for gross beta and gross alpha. They were composited for each station quarterly and monitored for gamma activity (See Tables 0-1 and D-2).

The gross beta activity for each quarter of 1981 and 1982 is summarized below:

1981 First Quarter 0.130 pCi/Cu. M.

Second Quarter 0.260 pCi/Cu. M.

Third Quarter 0.053 pCi/Cu. M.

Fourth Quarter 0.033 pCi/Cu. M.

1982 First Quarter 0.035 pCi/Cu. M.

Second Quarter 0.021 pCi/Cu. M.

Third Quarter 0.023 pCi/Cu. M.

Fourth Quarter 0.031 pCi/Cu. M.

The level of gross beta activity has returned to normal environmental levels since the Chinese atmospheric nuclear weapons tests of October 16, 1980. The gross alpha activity (Tables 8-1 through B-4) continues low and close to the limits of detection. This low gross alpha activity is probably due to alpha emitters found in soil and to cosmogenic radiation. The gross beta particulate levels in all of the stations are similar to other areas of the United States and indicate no influence from the plant.

i 30

'AFTELEDYTHE M9700 PES TABLE A-1 WEEKLY COLLECTIONS FIRST QUARTER 1932 NEBRASKA PUBLIC POWER OISTRICT (JANUARY-MARCH)

COOPER NUCLEAR STATION EXPOSURE PATHWAY - AIRBORNE AIR PARTICULATE FILTERS pC1/Cu. M.

SAMPLE STATION MONTHLY

SUMMARY

MONTHLY

SUMMARY

MONTHLY

SUMMARY

QUARTERLY

SUMMARY

EUCLI9E NUMBER 12/28/81-02/01/82 02/01/82-03/01/82 03/01/82-03/29/82 12/28/81-03/29/32 AIR PARTICULATE 01 2.0 2 0.6 E-02 7.4 1 0.3 E-03 1.7 i 1.9 E-02 1.5 2 1.2 E-02 FILTERS GFOSS 8 ETA 02 5.5 1 0.9 E-02 4.1 i 1.5 E-02 2.7 i 1.2 E-02 4.2 2 1.6 E-02 03 4.1 2 0.9 E-02 3.0 i 1.1 E-02 1.4 1 0.6 E-02 3.0 1 1.4 E-02 04 5.8 i 0.3 E-02 3.9 1 1.3 E-02 2.6 1 1.0 E-02 4.2 2 1.7 E-02 05 6.0 1 3.3 E-02 5.4 1 3.4 E-02 2.4 1 1.0 E-02 4.71 3.1 E-02 06 4.9 i 1.1 E-02 3.4 i 1.4 E-02 2.0 1 0.8 E-02 3.5 i 1.6 E-02 g; 07 4.8 i 1.0 E-02 3.1 i 1.3 E-02 1.6 1 0.6 E-02 3.3 i 1.7 E-02 l

08 4.9 2 1.1 E-02 3.8 2 1.0 E-02 2.8 1.1 E-02 3.9 1 1.3 E-C2 09 3.9 i 0.6 E-02 2.4 i 1.0 E-02 1.2 1 0.5 E-02 2.6 1.3 E-02 10 4.6 i 1.0 E-02 3.1 i 1.5 E-02 2.0 1 0.9 E-02 3.3 1.5 E-02 AVERAGE 01-10 4.7 1 1.7 E-02 3.3 i 1.8 E-02 2.0 1.1 E-02 3.5 1.9 E-02 ALL STATIONS x and s Grand T and s '

i t

TTEl_EDYtJE ISOTOPES VABLE A-2 WEEKLY COLLECTIONS SECOND QUARTER 1932 NEBRASKA PUBLIC POWER O! STRICT (APRIL -JUNE)

COOPER NUCLEAR STATION EXPOSURE PATHWAY - AIRBORNE AIR PAR 11CULATE FILTERS pCl/Cu. M.

SAMPLE STATION MONTHLY

SUMMARY

MONTHLY

SUMMARY

MONTHLY

SUMMARY

QUARTERLY SUMMAR NUCtIDE NilMBER 03/29/82-05/03/82 05/03/82-06/01/82 06/01/02-06/28/82 03/29/82-06/?b/c AIR PAPTICULATE 01 3.4 1 0.6 E-02 2.5 1 0.9 E-02 2.6 1 0.4 E-02 2.8 1 0.7 E-02 filTEHS GC055 BETA 02 2.9 1 0.6 E-02 2.1 1 0.6 E-02 2.1 1 0.3 E-02 2.4 1 0.b E-02 03 1.2 1 0.0 C J2 2.0 1 0.7 E-02 1.4 1 0.3 E-02 1.5 1 0.7 E-02 04 2.7 1 0.4 E-02 2.1 1 0.5 E-02 1.8 1 0.5 L-02 2.3 1 0.5 E-02 05 2.3 1 0.6 E-02 2.2 1 0.7 E-02 2.2 1 0.3 L-02 2.2 1 0.5 E-0!

06 2.0 1 0.7 E-02 2.0 2 0.4 E-02 2.2 1 0.2 E-02 2.1 1 0.5 E-02 07 1.7 1 0.4 E-02 2.0 1 0.6 E-02 2.0 1 0.1 E-02 1.91 0.4 E-02 03 2.7 1 0.5 E-02 2.3 1 0. 7 E-02 2.1 - 0.3 E-02 2.4 1 0.5 E-02 09 1.2 1 0.9 E-02 1.9 1 0.8 E-02 1.4 1 0.2 E-02 1.5 1 0.7 E-62 10 2.4 1 0.6 E-02 2.3 1 0.6 E-02 2.1 1 0.3 E-02 2.3 10.5 E-02 AVERA5E 01-10 2.3 1 0.9 E-02 2.1 1 0.6 E-02 2.0 1 0.4 L-02 2.1 1 0.7 E-02 ALL STATIONS T and s Grand I and s I

l i

TTELEDYNE ISOTOPES TABLE A-3 WEEKLY COLLECTIONS

THIR0 QUARTER ISS2 l NEBRASKA PUBLIC POWER DISTRICi (JULY -- SEPTEMBER)

COOPER NUCLEAR STATION EXPOSURE PATHWAY - AIRBORNE AIR PARTICULATE FILTERS pCi/Cu, M.

SAMPLE STATION MONTHLY

SUMMARY

MONTHLY

SUMMARY

MONTHLY

SUMMARY

QUARTERLY

SUMMARY

NUCLIOE NUMBER 06/28/82-08/02/82 08/02/82-08/30/82 08/30/82-09/27/82 06/28/82-09/27/82 AIR PARTICULATE 01 3.2 1 0.8 E-02 3.0 2 1.8 E-02 2.9 i 0.9 E-02 3.1 i 1.1 E-02 FILTERS GROSS BETA 02 2.6 1 0.7 E-02 2.3 t 1.1 E-02 2.4 1 0.5 E-02 2.4 2 0.8 E-02 03 2.1 1 0.7 E-02 2.2 1.0 E-02 2.7 1 1.0 E-02 2.3 1 0.6 E-02 04 2.5 1 0.6 E-02 2.6 1 1.1 E-02 2.5 i 1.0 E-02 2.5 2 0.8 E-02 05 2.3 1 0.4 E-02 2.3 1 1.1 E-02 2.5 t 0.8 E-02 2.4 2 0.7 E-02 06 2.0 1 0.3 E-02 1.6 i 0.6 E-02 1.3 1 0.6 E-02 1.6 0.5 E-02 j 07 2.1 1 0.3 E-02 1.9 2 0.9 E-02 2.0 1 0.7 E-02 2.0 1 0.6 E-02 U 08 2.8 2 1.1 E-02 2.2 i 0.9 E-02 2.7 1 1.1 E-02 2.6 i 1.0 E-02 09 1.2 1 0.3 E-02 1.1 1 0.7 E-02 1.1 2 0.4 E-02 1.1 2 0.4 E-02 1 10 2.6 i 0.5 E-02 2.4 2 1.1 E-02 2.6 t 0.9 E-02 2.5 1 0.8 E-02 i

! AVERAGE 01-10 2.3 2 0.8 E-02 2.2 i 1.1 E-02 2.2 1 0.9 E-02 2.3 2 0.9 E-02 ALL STATIONS i

1 I and s Grand I and s i

i 1

1

- _ . . . . _-. . .. .-. . . ~ . . _ _ . _ _ _ _ _~ _ - - . . _-

I

! 'RFTELEDYNE IS7 DOPES TABLE A-4 WEEKLY COLLECTIONS FOURTH QUARTER 19S$

NEBRASKA PUBLIC POWER DISTRICT (OCTOBER-DECEMBER)

COOPER NUCLEAR STATION

] EXPOSURE PATHWAY - AIRBORNE AIR PARTICULATE FILTERS

pCl/Cu. H.

I SAMPLE STATION MONTHLY

SUMMARY

MONTHLY

SUMMARY

MONTHLY

SUMMARY

QUARTERLY SUMMAR l NUCLIDE NUMBER 09/27/82-11/01/82 11/01/82-11/30/82 11/30/82-12/28/82 09/27/82-12/28/83 i

AIR PARTICULATE 01 3.0 1 0.6 E-02 3.9 1 1.2 E-02 3.5 1 0.5 E-02 3.4 t 0.8 E-02 FILTERS GROSS BETA 02 2.8 1 0.9 E-02 3.6 1 0.7 E-02 3.1 1 0.3 E-02 3.1 0.7 E-02 03 2.7 i 1.0 E-02 3.8 1 0.9 E-02 3.5 1 0.3 E-02 3.2 1 0.7 E-02 04 2.9 i 1.0 E-02 3.7

0.4 E-02 3.1 1 0.1 E-02 3.2 i 0.7 E-02 4 05 2.6 1 0.8 E-02 3.6 0.8 E-02 3.3 1 0.3 E-02 3.1 1 0.8 E-02 j 06 3.1 i 1.3 E-02 4.0 2 0.8 E-02 3.5 2 0.3 E-02 3.5 i 1.0 E-02 I 07 2.4 1 0.8 E-02 3.1 1 0.3 E-02 1.8 i 0.1 E-02 2.4 1 0.7 E-02 u

e 08 2.8 1 0.9 E-02 3.7 i 0.6 E-02 3.3 i 0.5 E-02 3.2 2 0.7 E-02 09 1.6 2 0.9 E-02 3.2 1 0.5 E-02 2.3 1 0.1 E-02 2.3 0.9 E-02 10 2.9 1 0.8 E-02 3.4 1 0.5 E-02 3.0 i 0.2 E-02 3.1 0.6 E-02 i AVERAGE 01-10 2.7 i 1.0 E-02 3.6 1 0.7 E-02 3.0 1 0.3 E-02 3.1 2 0.9 E-02

, ALL STATIONS I and s Grand I and s i

i I

~_ _ __ __ _ __. . _ . . __ ._ _ __ ._ _m . ._

W TELEDYNEISOTOPES TABLE B-1 idEEKLY COLLECTIONS '

FIRST QUARTER 1932 NEBRASKA PUBLIC POWER DISTRICT (JANUARY-MARCH)

COOPER NUCLEAR STATION EXPOSURE PATHWAY - AIRBORNE AIR PARTICULATE FILTERS pCi/Cu. M.

SAMPLE STATION MONTHLY

SUMMARY

MONTHLY

SUMMARY

MONTHLY

SUMMARY

QUARTERLY

SUMMARY

2 NUCLIOE NUMBER 12/28/81-02/01/82 02/01/82-03/01/82 03/01/82-03/29/82 12/28/81-03/29/82 A:R PARTICULATE 01 1.7 1 0.4 E-03 1.4 i 0.9 E-03 1.5 0.6 E-03 1.6 0.7 E-03 .

FILTERS GRCSS ALPHA 02 2.9 i 1.1 E-03 1.6 1 0.5 E-03 1.9 1 0.4 E-03 2.2 1 0.9 E-03 03 2.6 1 0.4 E-03 1.5 1 0.6 E-03 1.5 1 0.6 E-03 1.9 i 0.7 E-03 04 2.6 1 1.3 E-03 2.5 i 1.0'E-03 1.7 t 0.3 E-03 2.1 1 1.1 E-03 l 05 2.9 1 1.2 E-03 1.9 1 1.2 E-03 2.1 1 0.9 E-03 2.4 1 1.1 E-03 l 06 3.5 1 1.3 E-03 1.4 i 0.5 E-03 2.1 1 0.7 E-03 2.4 1 1.7 E-03 b$ 07 2.3 i 1.2 E-03 1.5 i 0.5 E-03 1.6 1 0.7 E-03 1.8 1 0.9 E-03 OB 3.0 i 1.5 E-03 1.6 i 0.7 E-03 1.7 1 0.4 E-03 2.1 1 1.2 E-G3 09 2.2 1 0.9 E-03 1.3 1 0.5 E-03 1.8 1 1.0 E-03 1.8 1 0.9 E-03 10 2.7 1 1.3 E-03 1.4 2 0.5 E-03 1.3 1 0.3 E-03 2.1 1 1.1 E-03 AVERAGE 01-10 2.7 i 1.3 E-03 1.6 1 0.7 E-03 1.8 i 0.6 E-03 2.1 i 1.1 E-03 i ALL STATIONS i

7 and s Grand I and s i

'7FTELEDYNE IS700 PES TABLE B-2 WEEKLY COLLECTIONS j SECLND QUARTER 1982 NCBRASKA PUBLIC POWER DISTRICT (AFRIL - JUNE) l COOPER NUCLEAR STATION I

EXPOSURE PATHV4Y - AIRBORNE AIR PARTICULATE FILTERS pC1/Cu. M.

SAMPLE STATION MONTHLY

SUMMARY

MONTHLY

SUMMARY

MONTHLY

SUMMARY

QUARTERLY

SUMMARY

l

{

NUCLIDE NUMBER 03/29/82-05/03/82 05/03/82-06/01/82 06/01/82-06/28/82 03/29/82-06/28/82 1 1

AIR PARTICULATE 01 2.8 2 0.7 E-03 2.1 1 1.0 E-03 1.4 2 0.5 E-03 2.1 1 0.9 E-03 l

FILIERS GROSS ALPHA 02 2.5 1 2.1 E-03 1.4 i 0.5 E-03 1.5 i 0.5 E-03 1.9 2 1.3 E-03 t

03 2.0 1 1.0 E-03 1.4 1 0.5 E-03 1.2 1 0.5 E-03 1.6 1 0.8 E-03 04 2.6 i 1.5 E-03 1.4 1 0.5 E-03 1.6 2 0.5 E-03 1.9 1 1.1 E-03

05 2.2 i 1.6 E-03 1.3 0.5 E-03 1.4 i 0.5 E-03 1.6 i 1.1 E-03 06 2.1 i 1.5 E-03 1.4 1 0.5 E-03 1.2 2 0.4 E-03 1.6 i 1.0 E-03 j 07 2.3 1 1.2 E-03 1.5 1 0.5 E-03 1.6 1 0.7 E-03 1.8 2 0.9 E-03 08 2.0 1 1.4 E-03 1.3 2 0.5 E-03 1.6 i 0.5 E-03 1.7 i 0.9 E-03 09 1.8 1 0.8 E-03 1.3 2 0.5 E-03 1.2 1 0.5 E-03 1.4 1 0.6 E-03 10 3.4 i 1.5 E-03 1.5 i 0.6 E-03 1.3 2 0.3 E-03 2.2 i 1.4 E-03 l

AVERAGE 01-10 2.4 i 1.3 E-03 1.4 1 0.6 E-03 1.4 0.5 C-03 1.8 2 1.0 E-03 ALL STATIONS i T and s Grand I and s O .

"AFTELEDYNE IS7 DOPES TABLE 8-3 WEEKLY COLLECTIONS THIRD QUARTER 1982 NE8RASKA PUBLIC POWER O! STRICT (JULY - SEPTEMSER)

COOPER NUCLEAR STATION EXPOSURE PATHWAY - AIRBORNE AIR PARTICULATE FILTERS pC1/Cu. M.

SAMPLE STATION MONTHLY

SUMMARY

MONTHLY

SUMMARY

MONTHLY

SUMMARY

QUARTERLY

SUMMARY

NUCL10E NUMBER 06/28/82-08/22/82 08/02/82-08/30/82 08/30/82-09/27/82 C6/28/E2-09/27/St AIR PARTICULATE 01 1.6 1 1.0'E-03 1.8 2 0.7 E-03 1.3 i 0.5 E-03 1.6 1 0.8 E-03 FILTERS GROSS 4LPHA 02 2.1 1 1.5 E-03 1.2 1 0.3 E-03 1.4 1 0.5 E-03 1.6 2 1.0 E-03 03 1.7 i 0.6 E-03 1.5 1 0.8 E-03 1.4 1 0.5 E-03 1.6 1 0.6 E-U3 04 2.4 i 1.5 E-03 1.5 1 0.8 E-03 1.4 2 0.5 E-03 1.8 1 1.1 E-03 05 2.1 1 1.2 E-03 1.2 1 0.3 E-03 1.3 2 0.5 E-03 1.6 1 0.9 E-03 06 1.5 1 0.7 E-03 2.5 1 2.4 E-03 1.3 i 0.5 E-03 1.7 1 1.4 E-03 w

4 07 1.71 0.9 E-03 1.3 1 0.5 E-03 1.6 1 0.7 E-03 1.6 1 0.7 E-03 08 1.8 1 0.9 E-03 1.5 1 0.6 E-03 1.5 1 0.7 E-03 1.6 1 0.6 E-03 1 09 1.3 i 0.6 E-03 1.2 2 0.5 E-03 1.3 1 0.5 E-03 1.3 1 0.5 E-03 10 2.0 1 0.6 E-03 1.2 1 0.3 E-03 2.3 i 1.6 E-03 1.9 1 1.0 E-03 1

AVERAGE 01-10 1.8 i 1.0 E-03 1.5 2 0,9 E-03 1.5 1 0.7 E-03 1.6 2 0.9 E-03

! ALL STATIONS I and s Grand I and s

TTE1.EDYNE ISOTOPES TAGLE Q-4 WEEKLY COLLECT!GNS FOURTH QUARTER 1982 NEBRASKA PUBLIC POWER DISTRICT (OCTOBER-SEPTEM3ER)

COOPER NUCLEAR STATION EXPOSURE PATitWAY - AIRBORNE AIR PARTICULATE FILTERS pC1/Cu. M.

SAMPLE STATION MONTHLY

SUMMARY

MONTHLY

SUMMARY

MONTHLY

SUMMARY

QUARTERLY SUMMAR' i NUCLIDE NUMBER 09/27/82-11/01/82 11/01/82-11/30/82 11/30/82-12/28/82 09/27/82-12/28/E.

AIR PARTICULATE 01 1.7 1 0.5 E-03 2.2 i 1.3 E-03 1.5 2 0.6 E-03 1.8 0.8 E-03 FILTERS GROSS ALPHA 02 2.0 2 0.6 E-03 1.6 1 0.7 E-03 1.5 i 0.4 E-03 1.7 1 0.6 E-03 03 2.0 t 0.6 E-03 2.4 0.7 E-03 1.8 1 0.6 E-03 2.0 1 0.6 E-03 i 04 1.9 i 0.2 E-03 2.5 1 0.9 E-03 1.9 i 0.3 0-03 2.1 2 0.6 E-03

05 1.9 i 0.5 E-03 2.2 2 0.9 E-03 1.6 1 0.3 E-03 1.9 i U.6 E-03 06 1.7 1 0.5 E-03 2.3 1 0.8 E-03 1.7 1 0.5 E-03 1.9 i 0.6 E-03 07 1.7 1 0.5 E-03 2.1 2 0.9 E-03 1.3 i 0.5 E-03 1.7 i 0.7 E-03 M 08 2.0 i 0.4 E-03 1.8 i 0.8 E-03 1.6 0.7 E-03 1.8 2 0.6 E-03 1

09 1.9 1 0.3 E-03 1.6 0.5 E-03 1.7 t 0.6 E-03 1.7 1 0.5 E-03 10 2.0 1 0.3 E-03 2.0 i 1.1 E-03 1.7 i 0.6 E-03 1.9 1 0.7 E-03 AVERAGE 01-10 1.9 i 0.4 E-03 2.1

0.8 E-03 1.6 1 0.5 E-03 1.8 i 0.6 E-03 J

j ALL STATIONS I and s Grand I and s

4 1

TTELEDYNE ISOTOPES 1

I C. AIR RADIOI0 DINE - CHARC0AL FILTERS (Eae Tables C-1 throuah C-4)

STATIONS 01 to 10 Charcoal filters used in series with air particulate filters were col-

lected weekly during 1982 at station 01 through 10 and monitored for radio-

) iodine.

Tables C-1 through C-4 show the average monthly and quarterly results for each station and for all 10 stations. No airborne I-131 was detected; all results were at or below the minimum level of detection.

Lack of any detections of I-131 supports the conclusion that no detect-able radionuclides were emitted in air releases from CNS.

9 i

e 39 1

-. ,, ,. .m..-. , , - - - -

,--,e------,n <s, -v--- + , . , - -

- - - - - , - . - - wc-, r- v- , , -, ,, . - - - - -w--.,--r - -

_ . _ ___ _ _ _ . _ _ _ _ _ _ _ . _ - _ _ . .__ _ = _ . _ _ _ _ . _ ._ __ __ .. _ _ - - _ _ _ __ - _ _ . .

TTE1.EDYNE ISOTOPES TABLE C-1 WEEKLY COLLECTIONS FIRST QUARTER 1982 l NEBRASKA PUBLIC POWER OISTRICT (JANUARY MARCH)

COOPER NUCLEAR STATION EXPOSURE PATHWAY.- AIRBORNE CHARC0AL FILTERS pCl/Cu. M.

i SAMPLE STATION MONTHLY

SUMMARY

MONTHLY

SUMMARY

MONTHLY

SUMMARY

NUCLICE QUARTERLY

SUMMARY

OET NUMBER 12/28/81-02/01/82 02/01/82-03/01/82 03/01/82-03/29/82 12/28/81-03/29/82 TOTAL RANGE CHARCOAL 01 L.T. 3. E-02 L.T. 4. E-02 L.T. 4. E-02 L.T. 4. E-02 0/13 (L.T.3.-L.T.4.)E-02 FILTERS I-131 02 L.T. 3. E-02 L.T. 4 E-02 L.T. 3. E-02 4 E-02 0/13 L.T. (L.T.3.-L.T.4.)E-02 03 L.T. 3. E-02 L.T. 4. E-02 L.T. 3. E-02 L.T. E-02 4 0/13 (L.T.3.-L.T.4.)E-02 04 L.T. 3. E-02 L.T. 4 E-02 L.T. 3. E-02 4. E-02 0/13 L.T. (L.T.3.-L.T.4.)E-02 05 L.T. 3. E-02 L.T. 3. E-02 L.T. 3. E-02 L.T. 3. E-02 0/13 --

06 L.T. 4. E-02 L.T. 4 E-02 L.T. 4 E-02 L.T. 4. E-02 0/13 --

07 L.T. 4 E-02 L.T. 4 E-02 L.T. 4. E-02 L.T. 4. E-02 0/13 --

l g OS L.T. 4 E-02 L.T. 4 E-02 L.T. 4 E-02 L.T. 4 E-02 0/13 --

09 L.T. 4. E-02 L.T. 4 E-02 L.T. 4 E-02 L.T. 4 E-02 0/13 --

10 L.T. 4 E-02 L.T. 2. E-02 L.T. 2. E-02 E-02 L.T. 4 0/13 (L.T.2.-L.T.4.)E-02 01-10 L.T. 4. E-02 L.T. 4 E-02 L.T. 4 E-02 L.T. 4. E-02 -- --

DET./ TOTAL 0/50 0/40 0/40 0/130 0/130 --

RANGE (L.T.3.-L.T.4.)E-02 (L.T.2.-L.T.4.)E-02 (L.T.2.-L.T.4.)E-02 (L.T.3.-L.T.4.)E-02 -- --

N Ln to N TJ N N N N N a z G4 O O O O D O O O *< 0 e e e e o e M L*J LaJ LaJ LeJ LaJ ed J LaJ C= CC ^ ^ ^ ^ m e e u naJ e e e e e e e LaJ ** M eJ4 en en *F FJ f*)

.J gg o=.e e e e e e e e J mf M D= >= >= >= >= e= >=

0 D *C e * * *

e e a e e e e a U CF E .J J .J J J G J e 4 .J 0 0 8 e 0 0 e 0 e e 9

). O A e e e e e o e

.J 2 e fa) M M M M er N se O tE kJ

e * * *

e

, LaJ U Ch O >= >= 9= >= >= D= D= e taJ e,J eg E o e o e e e . Cm

E M we *C A .J .J .J .J .,A .,J H Cg w we we we %, e.e e, w

eJ O O

, =C M M M M M M f*1 M M M M e

>=>= .-e M eo e m eo e-o e w e e gy hJ O N N N N N N N N N N e N e w O D= 0 O O O O O O O O O s O s N er O

N O %

>= N .=a e O CC 03 0 SaJ

<C N w e .at E Q3 N N N N N N N N N N N e GJ EN O O O O O O O O O O O c3 es DN e e e e e e s e e e e e 3 en to hJ LaJ hJ kJ LaJ taJ Lad uJ h.J naJ LaJ b.

O e nn

> e .J L JN e e e

e e o e e e e C e 3 CC CO to tin Ln an v er CQ *t et M CO M

O taJ N N M 4

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n. .J CM>* M VU *C .J e4 eC D I == a n/l Z u La e-o 43

TTELEDYNE i ISOTOPES D. COMPOSITE OF AIR PARTICULATE FILTERS - GAMMA __ _

(See Tables 0-1 and 0-2) __

STATIONS 01 to 10

. 1 i Weekly Air Particulate filters were composited for each station for

a quarterly gamma spectral analysis during the four quarters of 1982.

Beryllium-7, a naturally occurring cosmogenic nuclide, was detected in 40 of 40 samples at a level of 0.117 pCi per cubic meter which is the same level as in past years. There was one detection of Thorium-228 at station 07 in the first quarter of 1982. This is a natural terrestrial nuclide and the activity was below the limit of detection. Potassium-40, also a natural nuclide, was detected in 5 of 40 samples also below the limit of detection.

One detection of Co-60 occurred at station 01 during the third quarter.

This sample was analyzed for a second time and the presence of Co-60 was confirmed. This is an activation product and was detected once in a trace amount so that no firm attribution to a plant release can be nde.

There were no detections of I-131 in the charcoal filters in series with the air particulate filters. There was no correlation between the level of activity and the stations close to the plant. There was no indication.of an effect from the operations of CNS.

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i TTELEDYNE

ISOTOPES

) ,

E. EGGS (See Tables El, E2)

! STATIONS 42, 51. 67, 76 i

4 Egg samples were collected quarterly from four locations and analyzed for

, elemental calcium, gross beta, Sr-89, Sr-90 and gamma emitters. The gross

{ beta measured 1.7 pCi per gram, wet, which was accounted for largely by the

naturally occurring, terrestrial isotope K-40. No other gamma emitters were

! measured above the minimum level of detection. There were no detections of i Sr-89. The level of elemental calcium in 16 samples was 0.12 mg per gram wnich is similar to the levels of previous years.

1 i There were two detections of Sr-90 in 16 samples at a level of 0.0013 pCi j per gram, wet, which is below the minimum level of detection and is a residue from past nuclear explosions.

i

There was no evidence of an effect from the operation of CNS on egg j s amples.

i i

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i 4

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47

- . - -- ~ - _ - -.- - - - - . - _ . - - . - - . - . -

'RTELEDYNE ISOTOPES TABLE E-1 NEBRASKA PUBLIC POWER O!5TRICT COOPER NUCLEAR STATION l EXPOSURE PATHWAY - INGESTION EGGS - pCl/gm, wet l

I SAMPLE STATION 1st QUARTER. 2nd QUARTER 3rd QUARTER 4th QUARTER NUCLIDE NUMBER 01/18/82 04/19/82 07/19/82 10/18/82 l Gross Beta 42,51,67,76 Meanistd.dev. 1.3 1 0.4 E 00 1.3 1 0.5 E 00 2.2 2 0.6 E 00 2.1 t 0.4 E 00 ,

det./ total 4/4 4/4 4/4 4/4 range (0.9-1.7)E 00 (1.0-2.0)E 00 (1.3 2 2.7)E 00 (1.8-2.7)E 00 8

Sr-89 42,51,67,76 Heanistd.dev. L.T. 4 E-03 L.T. 6. E-03 L.T. 5. E-03 L.T. 6. E-03 det./ total 0/4 0/4 0;4 0/4 range -- -- -- --

Sr-90 42,51,67,76 Meanistd.dev. L.T. 1. E-03 L.T. 3. E-03 1.3 1 0.5 E-03 L.T. 4 E-03 det./ total 0/4 0/4 2/4 0/4 i range -- --

(.9- 1.6)E-03 --

Ca (eles.) 42,51,67,76 Mean std.dev. 1.7 i 1.0 E-01 1.0 2 0.5 E-01 1.6 1 1.2 E-01 7.7 1 4.3 E-02 mg/gm det./ total 4/4 4/4 4/4 4/4 y range (0.8-3.1)E-01 (0.5-1.5)E-01 (0.2-3.1)E-01 (3.4-13.0)E-02 co K-40 42,51,67,76 Meantstd.dev. 7.9 i 1.6 E-01 9.4 1 1.0 E-01 7.9 2 1.8 E-01 1.0 2 0.2 E 00 det./ total 4/4 4/4 4/4 4/4 range (6.9-10.0)E-01 (8.0-10.0)E-01 (5.3-9.4)E-01 (0.8-1.2)E 00 1-131 42,51,67,76 Meanistd.dev. L.T. 9. E-03 L.T. 2. E-02 L.T. 1. E-02 L.T. 2. E-02 det./ total 0/4 0/4 0/4 0/4 l range -- -- -- --

Cs-137 42,51,67,76 Heanistd.dev. L.T. 6. E-03 L.T. 9. E-03 L.T. 1. E-02 L.T. 1. E-02 det./ total 0/4 0/4 0/4 0/4 range -- -- -- --

4 I

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I t

a .

TTE1IDYNE ISOTOPES TA8LE E-2 NEBRASKA PUBLIC POWER 0! STRICT COOPER NUCLEAR STATION

! EXPOSURE PATHWAY - INGESTION EGGS - pct /gm, wet

! SAMPLE STATION 1st QUARTER 2nd QUARTER 3rd QUARTER 4th QUARTER NUCLTOE NUMCER 01/18/82 04/19/82 07/19/82 10/18/82 Ce-7 42,51,67,76 L.T. 5. E-02 (0/4) L.T. 8. E-02 (0/4) L.T. 1. E-01 (0/4) L.T. 1. E-01 (0/4)

K-40 42,51,67,76 7.9 1 1.0 E-01 (4/4) 9.4 1 0.5 E-01 (4/4) 7.9 1 1.8 E-01 (4/4) 1.0 2 0.2 E 00 (4/4)

Mn-54 42,51,67,76 L.T. 5. E-03 (0/4) L.T. 8. E-03 (0/4) 1. E-02 (0/4) 1.

L.T. L.T. E-02 (0/4)

Co-58 42,51,67,76 L.T. 5. E-03 (0/4) L.T. 9. E-03 (0/4) L.T. 1. E-02 (0/4) 1.

L.T. E-02 (0/4)

Fe-59 42,51,67.76 L.T. 1. E-02 (0/4) L.T. 2. E-02 (0/4) L.T. 2. E-02 (0/4) L.T. 2. E-02 (0/4)

Co-60 42,51,67,76 L.T. 6. E-03 (0/4) L.T. 8. E-03 (0/4) L.T. 1. E-02 (0/4) L.T. 1. E-02 (0/4) 2n-65 42,51,67,76 L.T. 1. E-02 (0/4) L.T. 2. E-02 (0/4) L.T. 3. E-02 (0/4) L.T. 3. E-02 (0/4) o Zr-95 42,51,67,76 L.T. 6. E-03 (0/4) L.T. 9. E-03 (0/4) L.T. 1. E-02 (0/4) L.T. 1. E-02 (0/4) i Ru-103 42,51,67,76 L.T. 6. E-03 (0/4) L.T. 9. E-03 (0/4) L.T. 1. E-02 (0/4) L.T. 1. E-02 (0/4) i Ru-106 42,51,67,76 L.T. 5. E-02 (0/4) L.T. 8. E-02 (0/4) 1. E-01 (0/4) 1.

L.T. L.T. E-01 (0/4) 1-131 42,51,67,76 L.T. 9. E-03 (0/4) L.T. 2. E-02 (0/4) L.T. 1. E-02 (0/4) L.T. 2. E-02 (0/4)

Cs-134 42.51.67,76 L.T. 7. E-03 (0/4) L.T. 9. E-03 (0/4) L.T. 1. E-02 (0/4) L.T. 1. E-02 (0/4)

Cs-137 42,51,67,76 L.T. 6. E-03 (0/4) L.T. 9. E-03 (0/4) L.T. 1. E-02 (0/4) L.T. 1. E-02 (0/4)

Ba-140 42,51,67,76 L.T. 8. E-03 (0/4) L.T. 1. E-02 (0/4) L.T. 1. E-02 (0/4) L.T. 1. E-02 (0/4)

Ce-141 42,51,67,76 L.T. 1. E-02 (0/4) L.T. 2. E-02 (0/4) L.T. 2. E-02 (0/4) L.T. 2. E-02 (0/4)

Ce-144 42,51,67.76 L.T. 5. E-02 (0/4) L.T. 8. E-02 (0/4) L.T. 1. E-01 (0/4) L.T. 1. E-01 (0/4)

RA-226 42,51,67,76 L.T. 1. E-01 (0/4) L.T. 2. E-01 (0/4) L.T. 3. E-01 (0/4) L.T. 3. E-01 (0/4)

Th-228 42,51,67,76 L.T. 1. E-02 (0/4) L.T. 2. E-02 (0/4) L.T. 2. E-02 (0/4) L.T. 2. E-02 (0/4)

SPTELEDYNE ISOTOPES F. FEED AND FORAGE - BEEF PRODUCERS (See Tables F-1 and F-2)

STATIONS 64, 65, 67, 68, 71, 76 . . _ .

Feed and forage samples were collected monthly from beef producers at six stations and radioassayed for gamma emitters . During peak pasture season (June through September) a monthly composite was made of the weekly samples received and also measured for gamma activity. The cattle at station 65 were sold and the station discontinued. No sample was collected af ter May 1982.

Beryllium-7, of cosmic origin, was detected in 37 of 76 samples and the terrestrial nuclide K-40 was detected in 76 of 76 samples at the levels encountered in the past.

There was one detection of radium-226 and two detections of thorium-228 in the 76 samples analyzed. These are naturally occurring terrestrial nuclides.

Ten detections of Cs-137 occurred at an average activity level of 0.0691

pCi/gm, wet. The highest number (five) occurred in the spring of the year.

There were three detections of Ce-144 at a level of 0.550 pCi/gm, wet. These are fission products which occurred in other areas of the United States and are probably residual f allout from previous nuclear weapons testing. There was no indication of a plant effect on feed and forage from the operations of CNS. .

.l 50

-- . . - - - - - . -_-..- . - ... --- - - - - - - . . - . = _ - . - -. - -- - -- . - - . -

TTELEDYNE ISOTOPES TA2LE F-I hEBRASKA PUBLIC POWER DISTRICT COOPER NUCLEAR STATION EXPOSURE PATHWAY - INGESTION FEED AND FORAGE - BEEF PRODUCERS - pC1/gm, wet SAMPLE STATION 1st QUARTER 2nd QUARTER 3rd QUARTER 4th QUARTER huCLIDE NUMBER 01/04/82-03/01/82 04/05/82-06/28/82 07/06/82-09/27/82 10/04/82-12/07/82 ,

Be-7 64,65,67,68, Meanistd.dev. 7.0 2 5.0 E-01 3.3 1 1.6 E 00 8.2 1 2.7 E 00 2.0 2 1.3 E 00 71,76 det./ total 4/21 9/19 18/18 6/18 Station 65 (a) range (0.2-1.2)E 00 (0.8-5.1) E 00 (2.9-13.8)E 00 (0.4-4.2)E 00 K-40 64,65,67,68, Meanistd.dev. 1.4 1 1.1 E 01 1.5 1 00.9E 01 1.6 2 0.5 E 01 5.6 2 4.8 E 00 ,

71,76 det./ total 21/21 19/19 18/18 18/18 )

range (0.3-4.1)E 01 (0.3-3.0)E 01 (0.9-2.8)E 01 (1.5-21.8)E 00 l

! I-131 64,65,67,68, Meanistd.dev. L.T. 2. E-01 L.T. 6. E-01 L.T. 6. E-01 L.T. 8. E-02 by chemical 71,76 det./ total 0/21 0/19 0/18 0/18 separation range -- -- -- --

$ Cs-137 64,65,67,68, 71,76 Meantstd.dev. 5.0 t 2.6 E-02 1.1 1 0.7 E-01 7.0 1 3.4 E-02 1.3 2 0.7 E-02 det./ total 3/21 5/19 1/18 1/18 range (0.2-7.3)E-02 (0.4-2.1)E-01 -- --

Ca-144 64,55,67,68 Meantstd.dev. 4.9 i 0.9 E-01 6.7 1 1.1 E-01 L.T. 5. E-01 L.T. 3. E-01 71,76 det./ total 2/21 1/19 0/18 0/18 range (4.3-5.6)E-01 -- -- --

Ra-226 64,65,67,68, Meantstd.dev. L.T. 1. E 00 1.0 1 0.6 E 00 L.T. 1. E 00 L.T. 7. E-01 71,76 det./ otal 0/21 1/19 0/18 0/18 range -- -- -- --

Th-223 64,65,67,68, Meanistd.dev. L.T. 1. E-01 1.3 i 0.4 E-01 1.6 i 0.3 E-01 L.T. 6. E-02 71,76 det./ total 0/21 1/19 1/18 0/18 range -- -- -- --

i i

(a) Station 65 - Cattle sold; no samples of feed and forage received after 05/03/82.

1

TTELEDYNE ISOTOPES TABLE F-2 NE3RASKA PUBLIC POWER DISTRICT l COOPER NUCLEAR STATION i

EXPOSURE PATHWAY - INGESTION i

, FEE 0 AND FORAGE - BCEF PRODUCERS - pC1/gm wet l

, SAMPLE STATION 1st QUARTER 2nd QUARTER 3rd QUARTER 4th QUARTER NUCLIDE NUMSER 01/04/82-03/01/82 04/05/82-06/28/82 07/06/82-09/27/82 10/04/82-12/07/82 Be-7 64,65,67,68.71,76 7.0 25.0 E-01 (4/21) 3.3 21.6 E 00 (9/19) 8.2 22.7 E 00 (18/18) 2.0 21.3 E 00 (6/18)

Station 65 (a)

K-40 64,65,67,68,71,76 1.4 1 1.1 E 01 (21/21) 1.5 10.9 E 01 (19/19) 1.6 20.5 E 01 (18/18) 5.6 24.8 E 00 (18/18)

En-54 64,65,67,68,71,76 L.T. 7. E-02 (0/21) L.T. 7. E-02 (0/19) L.T. 7. E-02 (0/18) L.T. 3. E-02 (0/IS) 1 Co-58 64,65,67,68,71,76 L.T. 7. E-02 (0/21) L.T. 7. E-02 (0/19) L.T. 8. E-02 (0/18) L.T. 3. E-02 (0/13)

Fe-59 64,65,67,68,71,76 L.T. 2. E-01 (0/21) L .,T . 2. E-01 (0/19) L.T. 2. E-01 (0/18) L.T. 8. E-02 (0/18)

Co-60 64,65,67,68,71,76 L.T. 7. E-02 (0/21) L.T. 7. E-02 (0/19) L.T. 7. E-02 (0/18) L.T. 3. E-02 (0/18) 1 l Zn-65 64,65,67,68,71,76 L.T. 2. E-01 (0/21) L.T. 2. E-01 (0/19) L.T. 1. E-01 (0/18) L.T. 8. E-02 (0/15)

Zr-95 64,65,67,68,71,76 L.T. 8. E-02 (0/21) L.T. 9. E-02 (0/19) L.T. 8. E-02 (0/18) L.T. 3. E-02 (0/15)

Ru-103 64,65,67,68,71,76 L.T. 7. E-02 (0/21) L.T. 1. E-01 (0/21) L.T. 9. E-02 (0/18) L.T. 3. E-02 (0/18) :

Ru-106 64,65,67,68,71,76 L.T. 6. E-01 (0/21) L.T. 6. E-01 (0/19) L.T. 6. E-01 (0/18) L.T. 3. E-01 (0/IE),

1-131 64,65,67,68,71,76 L.T. 2. E-01 (0/21) L.T. 6. E-01 (0/19) L.T. 6. E-01 (0/18) L.T. 8. E-02 (0/IS)

Cs-134 64,65,67,68,71,76 L.T. 7. E-02 (0/21) L.T. 7 E-02 (G/19) L.T. 7 E-02 (0/16) L.T. 4 E-02 (0/16)

Cs-137 64,65,67,68,71,76 5.0 t 2.6 E-02 (3/21) 1.1 1 0.7 E-01 (5/19) 7.0 t 3.4 E-02 (1/18) 1.3 1 0.7 E-02 (1/IS)

Ba-140 64,65,67,68,71,76 L.T. 1. E-01 (0/21) L.T. 3. E-01 (0/19) L.T. 3. E-01 (0/18) L.T. 4 E-02 (0/18)

Ce-141 64.65.67,6S,71,76 L.T. 1. E-01 (0/21) L.T. 2. E-01 (0/19) L.T. 2. E-01 (0/18) L.T. 7 E-02 (0/18)

Ce-144 64,65,67,68,71,76 4.9 1 0.9 E-01 (2/21) 6.7 1.1 E-01 (1/19) L.T. 5. E-01 (0/18) L.T. 3. E-01 (0/18) j RA-226 64,65,67,68,71,76 L.T. 1. E 00 (0/21) 1.0 i 0.6 E 00 (1/19) L.T. 1. E 00 (0/18) L.T. 7 E-01 (0/18) 7 Th-228 64,65,67,68,71,76 L.T. 1. E-01 (0/21) 1.3 t 0.4 E-01 (1/19) 1.6 1 0.3 E-01 (1/18) L.T. 6. E-02 (0/16)'

(a) Station 65 -- cattle sold; no samples of feed and forage received after 05/03/82.

l

f TTELEDYNE ISOTOPES

, FOOD AND GARDEN CR0PS (SEE TABLES G-1 G-2 and H-1, H-2)

G. STATIONS 53, 54 - APPLES

~

H. STATIONS 34, 56, 62 - T0 MAT 0ES AND GARDEN VEGETABLES J

Garden crops and apples were radioassayed once during the year at harvest time for gross beta, Sr-89, Sr-90, elemental calcium and gamma emitters.

There was no sample available from station 34; no crop was planted in 1982.

Detectable concentrations of gross beta, elemental calcium and K-40 were monitored in each sample and are the naturally occurring terrestrial nuclides found in food and garden crops. The results monitored during 1982 duplicate measurements conducted during previous years.

No Sr-90 was detected in tomatoes and garden vegetables. There was one detection of Sr-90 in apples at a level of 0.0021 pCi/gm, wet at Station 54, 5.2 miles, 320 degrees. This is below the minimum level of detection and is probably due to residual fallout from past atmospheric nuclear weapons testing.

There were no gamma emitters above the minimum levels of detection except K-40 as cited above. It may be concluded that there was no detectable effect on food and garden crops from the operations of CNS. ,

4 e

53

t i

i l TTELEDYNE ISOTOPES TABLE G-1 i

NEBRASKA PUBLIC POWER DISTRICT l COOPER NUCLEAR STATION EXPOSURE PATHWAY - INGESTION l FOOD AND GARDEN CR0PS - pC1/gm, wet I

APPLES i

l SAMPLE STATION 3rd QUARTER j NUCLIDE NUMBER 07/19/82 Gross Beta 53, 54 Mean2std.dev. 2.2 2 0.5 E 00 det./ total 2/2 range (1.8-2.5) E 00 Sr-89 53 54 Mean2std.dev. L.T. 3. E-03 det./ total 0/2 range --

Sr-90 53 54 Heanistd.dev. 2.1 2 1.1 E-03 det./ total 1/2 i range --

Ca 53, 54 Meanistd.dev. 4.5 0.7 E-02 (og/sm wet) det./ total 2/2 l range (4.0-5.0) E-02 ,

4 K-40 53, 54 Meanistd.dev. 1.1 2 0.0 E 00

! det./ total 2/2 I range --

1 l

l K-40 is the only gamma emitter above the limits of detection. See Table G-2 for the list of gamma emitters monitored.

! r i .

l I

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l

t l

! "/PTELEDYNE ISOTOPES TABLE G-2 1

! NEBRASKA PUBLIC POWER DISTRICT

COOPER NUCLEAR STATION i

! EXPOSURE PATHWAY - INGESTION j FOOD AND GARDEN CROPS - pCl/gm, wet l APPLES i l

\

, SAMPLE STATION 3rd QUARTER

' NUCLIDE NUMBER 09/13/82 Be-7 53, 54 L.T. 1. E-01 (0/2)

K-40 53, 54 1.1

0.0 E 00 (2/2) rn-54 53, 54 L.T. 1. E-02 (0/2)

Co-58 53, 54 L.T. 1. E-02 (0/2)

Fe-59 53, 54 L.T. 2. E-02 (0/2)

Co-60 53, 54 L.T. 1. E-02 (0/2)

Zn-65 53, 54 L.T. 2. E-02 (0/2) i vi

'a Zr-95 53, 54 L.T. 1. E-02 (0/2) l l Ru-103 53, 54 L.T. 1. E-02 (0/2)

Ru-106 53, 54 L.T. 1. E-01 (0/2) 1-131 53, 54 L.T. 2. E-02 (0/2)

Cs-134 53, 54 L.T. 1. E-02 (0/2)

?

Cs-137 53, 54 L.T. 1. E-02 (0/2)

Ba-140 53, 54 L.T. 2. E-02 (0/2) i Ce-141 53, 54 L.T. 2. E-02 (0/2) l i !

! Cc-144 53, 54 L.T. 1. E-01 (0/2) !

RA-226 53, 54 L.T. 3. E-01 (0/2)

Th-228 53, 54 L.T. 2. E-02 (0/2)

i l

l TTELEDYNE ISOTOPES TA8LE H-1 NEERASKA PUBLIC POWER DISTRICT COOPER NUCLEAR STATION EXPOSURE PATHWAY - INGESTION 1

FOOD AND GARDEN CROPS - pC1/gm wet GARDEN VEGETABLES - TOMATOES i

l SAVPLE STATION 3rd QUARTER f;U C L I D E NUMBER 08/16/82 Gross Beta 56, 62 (a) Mean std.dev. 5.1 i 0.7 E 00 det./ total 2/2 range (4.6-5.6) E 00 t

Sr-89 56, 62 Meanistd.dev. L.T. 3. E det./ total 0/2 range --

Sr-90 56, 62 Meanistd.dev. L.T. 2. E-03 det./ total 0/2 range --

I 56, 62 Ca Meanistd.dev. 2.0 1 0.0 E-01 y (ng/gm, wet) det./ total 0/2 range --

j K-40 56, 62 Meanmstd.dev. 1.8 i 0.1 E 00 det./ total 2/2 range (1.7-1.8) E 00 l

(a) There was no sample from station 34; there was no crop in 1982.

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- - . . _ . , . . -- .-. _ - . . . - . . . - - . . - .-. __ . _= -_ . . _ . ~ _ _ _

l t

TTELEDYNE ISOTOPES TABLE H-2 NEBRASKA PUBLIC POWER DISTRICT l COOPER NUCLEAR STATION 4

EXPOSURE PATHWAY - INGESTION j FOOD AND GARDEN CR0PS - pct /gm, wet GARDEN VEGETABLES - TOMATOES l

1 SAMPLE STATION 3rd Q3ARTER NUCLIDE NUMBER 06/16/82

! Be-7 56, 62(a) L.T. 8. E-02 (0/2) ;

K-40 56, 62 1.8 1 0.1 E 00 (2/2)

Mn-54 56, 62 L.T. 9. E-03 (0/2)

Co-SS 56, 62 L.T. 8. E-03 (0/2) i Fe-69 56, 62 L.T. 2. E-02 (0/2)

Co-60 56, 62 L.'. 9. E-03 (0/2)

Zn-65 56 , 62 L.T. 2. E-02 (0/2)

Zr-95 56, 62 L.T. 9. E-03 (0/2) l Ru-103 56, 62 L.T. 9. E-03 (0/2)

Ru-106 56, 62 L.T. 8. E-02 (0/2)

I-131 56, 62 L.T. 1. E-02 (0/2)

Cs-134 56, 62 L.T. 9. E-03 (0/2)

Cs-137 56, 62 L.T. 9. E-03 (0/2) i Ba-140 56, 62 L.T. 1. E-02 (0/2) 1 l

Ce-141 56, 62 L.T. 2. E-02 (0/2)

Ce-144 56, 62 L.T. 8. E-02 (0/2) i RA-226 56, 62 L.T. 2. E-01 (0/2) l Th-228 56, 62 L.T. 2. E-02 (0/2)

(a) There was no sample from station 34; there was no crop in 1932.

i !

1 T TELEDYNE i

ISOTOPES i

l FEED Afl0 FORAGE (See Tables ,I.-l. 1-2 and J-1, J-2) , ,

I. STAT 10fiS 61, 74 (Nearest f411k Producers)

J. STATIONS 42, 73, 75 (Commercial Milk Producers)

Feed and forage was collected from milk producers nearest the plant quarterly from two stations and monthly during peak pasture season. Feed and i forage from commercial milk producers was collected quarterly from three stations. These samples were monitored for Sr-89, Sr-90, elemental calcium and gamma emitting nuclides.

J There were no detections of Sr-89 and elemental calcium remained at j levels seen in previous years. There were 22 detections of Sr-90 at a level of 0.046 pCi/gm, wet which is lower than that of the year 1981. Cesium-137 1

was detected in 4 of 31 samples at a level of 0.055 pCi/gm, wat. Both of these nuclides are fission products and are probably the result of f allout from previous nuclear atmospheric testing. Both nuclides are at a lower level than that of the year 1981.

The naturally occurring nuclide Be-7 was seen in 18 of 31 samples at a level of 1.58 pCi/gm, wet. Potassium-40 was detected in 31 of 31 samples at a level of 9.08 pCi/gm wet, the same as in previous years. Radium-226 was seen in two of 31 samples and Th-228 in four of 31 samples. These are terrestrial -

nuclides. There was no essential difference in the number or level of detec-tion of the naturally occurring nuclides or of the fission fallout products between the feed and forage from the nearest producers or from the commercial -

producers. Thus it has been established that no nuclides which were related to CNS could be ingested by cows from feed and forage and there was no dose impact to the poptflation.

e 1

58

l TTELEDYNE ISOTOPES TABLE I-1 NEBRASKA PUBLIC POWER DISTRICT COOPER NULLEAR STATION EXPOSURE PATHWAY - INGESTION FEE 0 AND FORAGE - NEAREST MILK PRODUCERS pC1/gm wet #

SAMPLE STATION lst QUARTER 2nd QUARTER 3rd QUARTER i,th QUARTER NUCLIDE NUMBER 01/04/82 04/05/82-06/07/82 07/06/82-09/07/82 10/04/8.7 l Sr-89 61, 74 Meanistd.dev. L.T. 3. E-02 L.T. 5. E-02 L.T. 7. E-02 L.T. 8. E-02 det./ total 0/3 0/4 0/7 0/2

range -- -- -- --

I Sr-90 61, 74 Heanistd.dev. 1.4 2 0.2 E-01 L.T. 2. E-02 4.3 2 3.6 E-02 L.T. 5. E-02 det./ total 2/3 0/4 6/7 0/2 ,

range (1.2-1.5)E-01 --

(0.1-ll.0)E-02 --

Ca (elem.) 61, 74 Meanistd.dev. 3.3 1 2.4 E 00

3.7 1 3.7 E 00 3.4 1 3.4 E 00 2.7 2 3.4 E 00 ng/gn det./ total 3/3 4/4 7/7 2/2 '

range (0.6-3.4)E 00 (0.4-8.0)E 00 (1.6-11.9)E 00 (0.3-5.1)E 00 l

Be-7 61, 74 Meantstd.dev. 7.9 2 2.3 E-01 L.T. 1. E-01 2.2 2 0.4 E 00 L.T. 1. E-01 j 0; det./ total 1/3 0/4 7/7 0/2 range -- --

(1.7-2.7)E 00 --

K-40 61, 74 Meanistd.dev. 1.3 1 0.8 E 01 6.8 i 2.0 E 00 4.2 2 3.0 E 00 6.7 1 2.4 E 00 det./ total 3/3 4/4 7/7 2/2 range (0.6-2.2)E 01 (4.5-8.6)E 00 (0.7-8.7)E 00 (5.0-8.4)E 00 l

1 I

4

. . - - . - . ~ . . -. - _. -_ -- . _ _ . _

TTELEDYNE ISOTOPES TABLE I-1 NEBRASKA PUBLIC POWER OISTRICT COOPER NUCLEAR STATION EXPOSURE PATHWAY - INGESTION i

FEE 0 AND FORAGE - NEAREST MILK PRODUCERS l

l pC1/gm wet l

SAMPLE STATION 1st QUARTER 2nd QUARTER 3rd QUARTER 4th QUARTER NUCLIDE NUMBER 01/04/82 04/05/82-06/07/82 07/06/82-09/07/82 10/04/82 l I-131 61, 74 Meanistd.dev. L.T. 2. E-01 L.T. 4 E-02 L.T. 1. E-01 L.T. 2. E-02 ;

l det./ total 0/3 0/4 0/7 0/2

range -- -- -- --

i C5-137 61, 74 Heanistd.dev. L.T. 8. E-02 2.5 2 0.9 E-02 6.

L.T. E-02 2.2 i 0.5 E-02 det./ total 0/3 2/4 0/7 1/2 range --

(1.8-3.2)E-02 -- --

Ce-144 61, 74 Heanistd.dev. L.T. 5. E-01 L.T. 9. E-02 L.T. 3. E-01 L.T. 1. E-01 det./ total 0/3 0/4 0/7 0/2 range -- -- -- --

o Ra-226 61, 74 Hean std.dev. 1. E 00 I

L.T. 3.6 i 1.6 E-01 L.T. 9. E-01 6.6 1 0.1 E-01 det./ total 0/3 1/4 0/7 1/2 range -- -- -- --

Th-228 61, 74 Meanistd.dev. L.T. 1. E-01 1.1 i 0.0 E-01 4.7 i 0.8 E-01 1.5 i 0.1 E-01 det./ total 0/3 2/4 1/7 1/2

range --

(1.0-1.1)E-01 -- --

l i

l l

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TTELEDYNE ISOTCPEf., TABLE J-1 NEBRASKA PUBLIC POWER DISTRICT COOPER NUCLEAR STATION EXPOSURE PATHWAY - INGESTION FEED AND FORAGE - COMMERCIAL MILK PRODUCERS pC1/gm wet SAMPLE STATION 1st QUAATER 2nd OUARTER 3rd QUARTER 4th QUARTER NUCLIDE NL'M 3 E R 01/11/82 04/12/82 07/12/82 10/11/82

3. E-02 L.T. 3. E-02 L.T. 5. E-02 L.T. 1. E-02 Sr-89 42, 73, 75 Meanistd.dev. L.T.

0/4 det./ total 0/4 0/3 0/4 range --

Sr-90 42, 73, 75 Meanistd.dev. 6.8 i 6.0 E-02 1.6 1 0.3 E-02 4.6 1 1.6 E-02 L.T. 0.8 E-02 det./ total 4/4 3/3 4/4 3/4 range (0.1-1.3)E-01 (1.3-1.9)E-02 (2.3-5.9)E-02 (0.3 1.7)E-02 Meanistd.dev. 1.0 2 0. 5 E-01 5.8 1 7.9 E 00 2.4 1 0.9 E 00 7.2 1 3.9 E-01 Ca (elem.) 42, 73, 75 3/3 4/4 4/4 mg/gm det./ total 4/4 range (0.5-1.51E 01 (0.08-1.5) E 01 (1.2-3.4)E 00 (0.4-1.2)E 00 Mean std.dev. 1.9 1 0.7 E-01 1.3 2 0.6 E-01 2.4 1 0.5 E 00 8.7 i 7.6 E-01 Be-7 42, 73, 75 1/4 1/3 4/4 4/4

$ det./ total range -- --

(1.9-3.1)E 00 (0.1-1.9)E 00 K-40 42, 73, 75 Hean std.dev. 1.5 i 1.3 E 01 4.6 2 0.8 E 00 1.0 2 0.2 E 01 4.9 2 1.8 E 00 det./ total 4/4 3/3 4/4 4/4 range ( .3-2.7)E 01 (4.0-5.5)E 00 (0.8-1.2)E 01 (3.8-7.6)E 00 L.T. E-02 L.T. 7. E-02 L.T. 7. E-02 L.T. 3. E-02 1-131 42, 73, 75 Mean std.dev. 9.

det./ total 0/4 0/3 0/4 0/4 range -- -- --

Cs-137 42, 73, 75 Meanistd.dev. 8.6 2 4.4 E-02 L.T. 2. E-02 L.T. 4. E-02 L.T. 2. E-02 det./ total 1/4 0/3 0/4 0/4 range -- -- -- --

42, 73, 75 Mean!std.dev. 4. E-01 L.T. 2. E-01 L.T. 3. E-01 L.T. 1. E-01 Ce-144 L.T.

det./ total 0/4 0/3 ,

0/4 0/4 range -- -- -- --

TTELEINNE ISC7 TOPES TABLE J-2 NEBRASKA PUBLIC POWER DISTRICT COOPER NUCLEAR STATION EXPOSURE PATHWAY - INGESTION FEED AND FORAGE - COMMERCIAL HILK PRODUCERS pC1/gm, wet SAMPLE STATION 1st QUARTER 2nd QUARTER 3rd QUARTER 4th QUARTER

U C L I D E NUMBER 01/11/82 04/12/82 07/12/82 10/11/82 Be-7 42, 73, 75 1.9 i 0.7 E-01 (1/4) 1.3 +-0.6 E-01 (1/3) 2.4 i 0.5 E 00 (4/4) 8.7 1 7.6 E-01 (4/4)

K-40 42, 73, 75 1.5 i 1.3 E 01 (4/4) 4.6 i 0.8 E 00 (3/3) 1.0 i 0.2 E 01 (4/4) 4.9 2 1.8 E 00 (4/4)

Mn-54 42, 73, 75 L.T. 5. E-02 (0/4) L.T. 2. E-02 (0/3) L.T. 3. E-02 (0/4) L.T. 2. E-02 (0/4)

Co-58 42, 73, 75 L.T. 5. E-02 (0/4) L.T. 2. E-02 (0/3) L.T. 4. E-02 (0/4) L.T. 2. E-02 (0/4)

Fe-59 42, 73, 75 L.T. 2. E-02 (0/4) L.T. 5. E-02 (0/3) L.T. 8. E-02 (0/4) L.T. 4. E-02 (0/4) j Co-60 42, 73, 75 L.T. 6. E-02 (0/4) L.T. 2. E-02 (0/3) L.T. 4 E-02 (0/4) L.T. 2. E-02 (0/4)

Zn-65 42, 73, 75 L.T. 1. E-01 (0/4) L.T. 5. E-02 (0/3) L.T. 8. E-02 (0/4) L.T. 4 E-02 (0/4)

Zr-95 42, 73, 75 L.T. 5. E-02 (0/4) L.T. 3. E-02 (0/3) L.T. 4 E-02 (0/4) L.T. 2. E-02 (0/4)

Ru-103 42, 73, 75 L.T. 6. E-02 (0/4) L.T. 3. E-02 (0/3) L.T. 4. E-02 (0/4) L.T. 2. E-02 (0/4)

Ru-106 42, 73, 75 L.T. 5. E-01 (0/4) L.T. 2. E-01 (0/3) L.T. 3. E-01 (0/4) L.T. 2. E-01 (0/4) 1-131 42, 73, 75 L.T. 9. E-02 (0/4) L.T. 7. E-02 (0/3) L.T. 7. E-02 (0/4) L.T. 3. E-u2 (0/4)

Cs-134 42, 73, 75 L.T. 6. E-02 (0/4) L.T. 2. E-02 (0/3) L.T. 4. E-02 (0/4) L.T. 2. E-02 (0/4)

Cs-137 42, 73, 75 8.6 1 4.4 E-02 (1/4) L.T. 2. E-02 (0/3) L.T. 4 E-02 (0/4) L.T. 2. E-02 (0/4)

Sa-140 42, 73, 75 L.T. 7 E-02 (0/4) L.T. 4 E-02 (0/3) L.T. 6. E-02 (0/4) L.T. 2. E-02 (0/4)

Ce-141 42, 73, 75 L.T. 9. E-02 (0/4) L.T. 4 E-02 (0/3) L.T. 8. E-02 (0/4) L.T. 3. E-02 (0/4)

Ce-144 42, 73, 75 L.T. 4 E-01 (0/4) L.T. 2. E-01 (0/3) L.T. 3. E-01 (0/4) L.T. 1. E-01 (0/4) '

RA-226 42, 73, 75 L.T. 9. E-01 (0/4) L.T. 4 E-01 (0/3) L.T. 8. E-01 (0/4) L.T. 4 E-01 (0/4)

Th-223 42, 73, 75 L.T. 8. E-02 (0/4) L.T. 4 E-02 (0/3) L.T. 7. E-02 (0/4) L.T. 3. E-02 (0/4)

TTELEDYNE ISOTOPES K. FOOD AND FEED CROPS - CORtl AtiD 50Y BEANS (See Tables K-1 and K-2)

~

STATI0t45 15, 18, 20, 27, 29, 38, and 41 Food and feed crops were collected once during the year at harvest time and monitored for gross beta, Sr-89, Sr-90, elemental calcium and gamma emitters. Measurements on all of these analyses were similar in activity level and range to those measured in the previous years of 1973 - 1981.

Gross beta activity measured an average of 8.0 3.4 pCi per gram, wet.

This was largely due to K-40, the naturally occurring, terrestrial nuclide.

Strontium-90 was detected in 4 of 8 samples at an average of 0.026 pCi/gm, wet, which is below the minimum level of detection. The elemental calcium level was similar to that of other years at 0.47 mg per gram.

From this monitoris.g data it may be concluded that there was no effect on food and feed crops from the operations of CriS.

64

'mTELEDYNE ISOTOPES TABLE K-1 NEBRASKA PUBLIC POWER DISTRICT

. COOPER NUCLEAR STATION EXPOSURE PATHWAY - INGESTION FOOD AND FEED CROPS - pC1/gm, wet SAMPLE STATION 3rd QUARTER N 'J C L I DE NUMBER 09/20/92 Gross 2 eta 15,18.20,27, Mean std.dev. 8.0 ! 3.4 E 00 29,38,41 det./ total 8/S ran9e (3.9-13.0)E 00 Sr-89 15,18,20,27, Meantstd.dev. L.T. 2. E-02 29,38,41 det./ total 0/8 range --

Sr-90 15,18,20,27, Mean std.dev. 2.6 1 0.8 E-02 29,33,41 det./ total 4/8 range (2.0-3.7) E-02 Ca 15,18,20,27 Meanistd.dev. 4.7 1 6.5 E-01 (eg/gm, wet) 29 'B,41 det./ total 8/S range (0.007-1.7E 00

$ K-40 15,18,20,27, Meanistd.dev. 3.6

1.7 E 00 29,38,41 det./ total 8/8 range (1.8-5.9) E 00 8e-7 15,18,20,27 Meanistd.dev. 3.9 1 0.5 E-01 29,38,41 det./ total 4/3 range (3.3 4.5) E-01 i

TTELEDYfJE ISOTOPES TABLE K-2 NE8RASKA PUBLIC POWER O! STRICT COOPER NUCLEAR STATION EXPOSURE PATHWAY - INGESTION F000 AND FEED CROPS - pct /gm, wet SAMPLE STATION 3rd QUARTER NUCLIOE NUMBER 09/20/82 Be-7 15,18,20,27,29,38,41 3.9 2 0.5 E-01 (4/8)

K-40 15,18,20,27,29,38,41 3.6 i 1.7 E 00 (8/8)

Mn-54 15,18,20,27,29,38,41 L.T. 2. E-02 (0/8)

Co-58 15,18,20,27,29,38,41 L.T. 2. E-02 (0/8)

Fe-59 15,18,20,27,29.3S,41 L.T. 5. E-02 (0/8)

Co-60 15,18,20,27,29,38,41 L.T. 2. E-02 (0/8)

Zr-65 15,18,20,27.29,38,41 L.T. 5. E-02 (0/8)

Zr-95 15,18,20,27,29,38,41 L.T. 2. E-02 (0/8) g Ru-103 15,18,20,27,29,38,41 L.T. 2. E-02 (0/8)

Ru-106 15,18,20,27,29,38,41 L.T. 2. E-01 (0/8) 1-131 15,18.20,27,29,38,41 L.T. 4 E-02 (0/8)

Cs-134 15,18,20,27,29,38,41 ,

L.T. 2. E-02 (0/8)

Cs-137 15,18,20,27,29,38,41 L.T. 2. E-02 (0/8)

Ba-140 15,18.20,27,29,38,41 L.T. 3. E-02 (0/8)

Ce-141 15,18,20,27,29,38,41 L.T. 4 E-02 (0/8)

Ce-144 15,18,20,27,29,38,41 L.T. 2. E-01 (0/S)

RA-226 15,18,20,27,29,38,41 L.T. 5. E-01 (0/8)

Th-228 15,18,20,27,29,38,41 L.T. 4 E-02 (0/8)

T TELEDYNE ISOTOPES L. FISH (See Tables L-1, L-2)

STATIONS 28, 35 Fish samples were collected during the spring and fall and analyzed for gross beta, Sr-89, Sr-90 and gamma emitting isotopes. The gross beta and Sr-90 activities v.ere similar to the levels of previous years. Strontium-90 was detected in eight of ten samples at a level of 0.014 pCi per gram wet, which is below the minimum level of detection. There were no detections of Sr-89. All of the gamma emitters were at or below the minimum level of detection except K-40, a naturally occurring isotope, which was at a level of 2.3 pCi per gram, wet, approximately the same level as in previous years.

There was no significant difference between the fish caught at station 28 downstream from the discharge point and that caught at station 35 upstream from the discharge point. Since no change has occurred in levels of activity in the isotopes monitored since 1975 it can be concluded that tht operations of CfiS have had no effect on fish samples.

67

I E

TTELEDYNE ISOTOPES TA8LE L-1

, NEBRASKA PUBLIC POWER DISTRICT COOPER NUCLEAR STATION l EXPOSURE PATHWAY - INGESTION r l .

! FISH - pC1/gm, wet I i

SAMPLE STATION 2nd QUARTER 4th OUARTER huCLIDE NUMBER 08/02/82 11/15/82 ;

i i Gross 8 eta 28, 35 Meantstd.dev. 3.8 2 1.2 E 00 6.4 2 1.1 E 00 ;

i det./ total 5/5 5/5

) range (2.5-5.0)E 00 (5.0-7.5)E 00 i 4

i Sr-89 28, 35 Heanistd.dev. L.T. 2. E-02 L.T. 3. E-02 j det./ total 0/5 0/5 range -- --

, Sr-90 28, 35 Heanistd.dev. 1.4 1.3 E-02 1.7 +-1.3 E-C2 det./ total 5/5 3/5 range (0.5-3.4)E-02 (0.9-3.2)E-02 '

K-40 28, 35 Meanistd.dev. 2.0 +-1.0 E 00 2.6 +-0.3 E 00 det./ total 5/5 5/5

range (0.4-2.9) E 00 (2.2-3.0)E 00 '

o l co . t I

1 i

)

i t

I 1

~

, I i

l l

I

"^ g

I l . .

TTELEET(NE ISOTOPES TABLE L-2 NEBRASKA PUBLIC POWER DISTRICT COOPER NUCLEAR STATION EXPOSURE PATHWAY - INGESTION FISH - pC1/gm, wet SAMPLE STATION 2nd OUARTER 4th OL' AR TER NUCLIDE NUMBER 08/02/82 11/15/e2 Be-7 23, 35 L.T. 6. E-02 (0/5) L.T. 9. E-02 (0/5)

K-40 28, 35 2.0 1 1.0 E 00 (5/5) 2.6 1 0.3 E 00 (5/5)

Mn-54 28, 35 L.T. 9. E-03 (0/5) L.T. 9. E-03 (0/5)

Co-58 28, 35 L.T. 9. E-03 (0/5) L.T. 1. E-02 (0/5)

Fe-59 28, 35 L.T. 2. E-02 (0/5) L.T. 2. E-02 (0/5)

Co-60 28, 35 L.T. 1. E-02 (0/5) L.T. 1. E-02 (0/5)

Zn-65 28, 35 L.T. 2. E-02 (0/5) L.T. 2. E-02 (0/5)

Zr-95 23, 35 L.T. 1. E-02 (0/5) L.T. 1. E-02 (0/5)

Ru-103 28, 35 L.T. 1. E-02 (0/5) L.T. 1. E-02 (0/5)

Ru-105 28, 35 L.T. 8. E-02 (0/5) L.T. 9. E-02 (C/5) 1-131 28, 35 L.T. 2. E-02 (0/5) L.T. 6. E-02 (0/5)

Cs-13" 28, 35 L.T. 9. E-03 (0/5) L.T. 1. E-02 (0/5)

C5-131 28, 35 L.T. 1. E-02 (0/5) L.T. 1. E-02 (0/5)

Sa-140 28, 35 L.T. 1. E-02 (0/5) L.T. 3. E-02 (C/5)

Ce-141 28, 35 L.T. 2. E-02 (0/5) L.T. 3. E-02 (0/5)

Ce-144 28, 35 L.T. 7. E-02 (0/5) L.T. 8. E-02 (0/5)-

RA-225 28, 35 L.T. 2. E-01 (0/5) L.T. 2. E-01 (0/5)'

Th-223 28, 35 L.T. 1. E-02 (0/5) L.T. 2. E-02 (C/5)-

TTELEDYNE ISOTOPES MILK (See Tables M-1. M-2 and N-1, N-2)

M. STATIONS 42, 73, 75 (COMMERCIAL PRODUCERS)

N. STATIONS 61, 74 (NEAREST PRODUCERS)

Milk ' samples from commercial producers were collected quarterly from 3 stations, and monitored for 1-131, Sr-89, Sr-90, elemental calcium and gamma emitters. Milk samples frca nearest producers were collected from two stations monthly and monitored for I-131, Sr-89, Sr-90, elemental calcium and gamma emitters. During peak pasture season weekly samples were collected and monitored for I-131 for the ' nearest oroducers. The weekly samples were composited monthly and monitored for Sr-89, Sr-90 elemental calcium and gamma emitters. There was no milk sample collected from Station 73 during the first quarter because the cows were dry.

There were no detections of I-131 in milk from either the eleven samples from the commercial producers or the 60 samples from the nearest producers.

No Sr-89 was detected in any of the milks, Strontium-90 was detected in 38 of 38 samples analyzed at an average level of 2.4 pCi per liter which is ap-proximately the same as previous years. The elemental calcium levels remained stable as compared with other years. Naturally occurring K-40 remained at the same levels as previous years. There were no other detections of gamma emitting nuclides except for one detection of Cs-137 during the second quarter at station 42, a commercial producer. This was at a level of 10.0 pCi per liter, which is slightly above the minimum level of detection. This was probably the result of fallout from previous atmospheric nuclear tests and was observed in other areas of the United States.

Thus we conclude that tne operations of CNS had no effect on the milk from commercial nor from nearest producers and thus no dose impact on the population.

70

.)

TTELEDYNE ISOTOPES TABLE ti-1 NEBRASKA PUBLIC POWER DISTRICT COOPER NUCLEAR STATION EXPOSURE PATHWAY - INGESTION MILK - pct / liter COMMERCIAL PRODUCERS SAMPLE STATION 1st QUARTER 2nd QUARTER NUCt!DE 3rd QUARTER 4th QUARTER NUMBER 01/18/82-01/25/82 04/19/82-04/26/82 07/19/82 10/18/82 Sr-89 42,73,75 Meanistd.dev. L.T. 2. E 00 L.T. 2. E 00 L.T. 2. E 00 L.T. 2. E 00 det./ total 0/2(a) 0/3(b) 0/3 0/3 range -- -- -- --

Sr-90 42,73,75 Mean std.dev. 2.3 2 0.2 E 00 2.7 2 1.1 E 00 3.4 i 1.3 E 00 3.1.1 2.9 E 00 det./ total 2/2 3/3 3/3 3/3 range (2.1-2.4)E 00 (1.8-2.5)E 00 (2.5-4.9)E 00 (0.5-6.9)E 00 1-131 42,73,75 Meanistd.dev. L.T. 4 E-01 L.T. 3. E-01 L.T. 3. E-01 (by chemical L.T. 2. E-01 det./ total 0/2 0/3 0/3 0/3 separation) range -- -- -- --

U Ce(eg/ liter) 42,73,75 Meantstd.dev. 1.9 1 0.1 E 00 1.5 1 0.6 E 00 1.2 0.1 E 00 2.7 2 0.1 E 03 det./ total 2/2 3/3 3/3 3/3 range. (1.8-1.9))E 00 (0.9-1.9)E 00 (1.2-1.3)E 00 (2.7-2.8)E 00 K-40 42,73,75 Meanistd.dev. 1.1 1 0.1 E 03 1.1 1 0.2 E 03 1.1 2 0.1 E 03 1.2 2 0.2 E 03 det./ total 2/2 3/3 3/3 3/3 range (1.1-1.2)E 03 (0.8-1.3)E 03 (1.1-1.2)E 03 (1.0-1.')E 03 Cs-137 42,73,75 Meantstd.dev. L.T. 8. E 00 1.0 +-0.6 E 01 L.T. 7. E 00 L.T. 9. E 00 det./ total 0/2 1/3 0/3 0/3 range -- -- -- --

(a) Sample not available at Station 73; cows dry. (b) Sample from Station 75 of 4/19 lost in transit; replaced 4/26.

j

'FPTELEDYNE ISOTOPES TABLE M 2 NEBRASKA PUBLIC POWER 01 STRICT COOPER NUCLEAR STATION EXPOSURE PATHWAY - INGESTION i MILK - pC1/ liter COMMERCIAL PRODUCERS SAMPLE STATION 1st QUARTER 2nd QUARTER 3rd QUARTER 4th QUARTER NUCL!3E NUMBER 01/18/82-01/25/82 04/19/82-04/26/82 07/19/82 10/18/82 Ee-7 42,73,75 L.T. 6. E 01 (0/2) L.T. 6. E 01 (0/3) L.T. 5. E 01 (0/3) L.T. 7. E 01 (0/3) f F-40 42,73,75 1.1 2 0.1 E 03 (2/2) 1.1 2 0.2 E 03 (3/3) 1.1 1 0.1 E 03 (3/3) 1.2 1 0.2 E 03 (3/3)

Mn-54 42,73,75 L.T. 6. E 00 (0/J) L.T. 7. E 00 (0/3) L.T. 6. E 00 (0/3) L.T. 8. E 00 (0/3)

Co-58 42,73,75 L.T. 6. E Ou (0/2) LsT. 7. E 00 (0/3) L.T. 6. E 00 (0/3) L.T. 7. E 00 (0/3) .

Fe-59 42,73,75 L.T. 1. E 01 (0/2) L.T. 1. E 01 (0/3) L.T. 1. E 01 (0/3) L.T. 2. E 01 (0/3) ,

Co-60 42,73.75 L.T. 7. E 00 (0/2) L.T. 7. E 00 (0/3) L.T. 7. E 00 (0/3) L.T. 7. E 00 (0/3)

I Zn-55 42,73,75 L.T. 1. E 01 (0/2) L.T. 2. E 01 (0/3) L.T. 1. E 01 (0/3) L.T. 2. E 01 (0/3)

Zr-95 42,73,75 L.T. 7. E 00 (0/2) L.T. 7. E 00 (0/3) L.T. 7. E 00 (0/3) L.T. 8. E 00 (0/3)

U Ru-103 42,73,75 L.T. 6. E 00 (0/2) L.T. 7. E 00 (0/3) L.T. 7. E 00 (0/3) L.T. 8. E 00 (0/3)

Ru-106 42,73,75 L.T. 6. E 01 (0/2) L.T. 6. E 01 (0/3) L.T. 6. E 01 (0/3) L.T. 6. E 01 (0/3) 1-131 42,73,75 L.T. 1. E 01 (0/2) L.T. 2. E 01 (0/3) L.T. 9. E 00 (0/3) L.T. 8. E 00 (0/3)

Cs-114 42,73,75 L.T. 7. E 00 (0/2) L.T. 7. E 00 (0/3) L.T. 8. E 00 (0/3) L.T. 8. E 00 (0/3)

Cs-137 42,73,75 L. . 8. E 00 (0/2) 1.0 t 0.6 E 01 (1/3) L.T. 7. E 00 (0/3) L.T. 9. E 00 (0/3)

Ba-140 42,73,75 L.T. 1. E 01 (0/2) L.T. 1. E 01 (0/3) L.T. 7. E 00 (0/3) L.T. 1. E 01 (0/3)

Ce-141 42,73 75 L.T. 1. E 01 (0/2) L.T. 1. E 01 (0/3) L.T. 1. E 01 (0/3) L.T. 1. E 01 (0/3) i Ce-144 42,73,75 L.T. 6. E 01 (0/2) .L.T. 5. E 01 (0/3) L.T. 6. E 01 (0/3) L.T. 7. E 01 (0/3) 2 RA-226 42,73,75 L.T. 1. E 02 (0/2) L.T. 1. E 02 (0/3) L.T. 1. E 02 (0/3) L.T. 2. E 02 (0/3)

Th-228 42,73,75 L.T. 1. E 01 (0/2) L.T. 1. E 01 (0/3) L.T. 1. E 01 (0/3) L.T. 1. E 01 (0/3)

l i

TTELEDYNE ISOTOPES TABLE N-1 NEBRASKA PUBLIC POWER DISTRICT COOPER NUCLEAR STATION EXPOSURE PATHWAY - INGESTION

MILK - pC1/ liter NEAREST PRODUCERS SAMPLE STATION 1st QUARTER 2nd QUARTER 3rd QUARTER 4th QUARTER

.CCLIDE NUMBER 01/11/82-03/08/82 04/12/82-06/28/82 07/07/82-09/27/82 10/05/82-12/14/E2 Sr-89 61, 74 Heanistd.dev. L.T. 2. E 00 L.T. 2. E 00 L.T. 2. E 00 L.T. 2. E 00 [

det./ total 0/7 0/7 0/6 0/7 ;

range -- -- -- -- '

Sr-90 61, 74 Meantstd.dev. 1.3 2 0.6 E 00 1.6 0.5 E 00 1.3 2 0.9 E 00 1.9 2 0.8 E 00 det./ total 7/7 7/7 6/6 7/7 range (0.6-2.3)E 00 (1.1-2.3)E 00 (0.5-2.5)E 00 -(1.2-3.5)E 00

I-131 61, 74 Heanistd.dev. L.T. 2. E-01 L.T. 4. E-01 L.T. 5. E-01 L.T. 3. E-01 by chemical det./ total 0/7 0/15 0/31 0/7 l separation range -- -- -- --

Ca(mg/ liter) 61, 74 Mean std.dev. 1.3 2 0.2 E 00 1.8 i 0.3 E 00 1.5 1 0.2 E 00 1.5 1.0.3 E 00 det./ total 7/7 7/7 6/6 7/ 7

[j range (1.1-1.7)E 00 (1.3-2.0)E 00 (1.4-1.8)E 00 (1.4-2.0)E 00 i K-40 61, 74 Meanistd.dev. 1.2 1 0.3 E 03 1.2 1 0.1 E 03 1.1 2 0.2 E 03 1.2 0.1 E 03 det./ total 7/7 7/7 6/6 7/7 '

range (1.0-1.8)E 03 (1.1-1.3)E 03 (1.0-1.5)E 03 (1.0-1.3)E 03 I

i

_ . . . _ _ _____ - .- _ _ _ _ _ _ . _ _ _ __ 2.m_ _-

m a=m e m m e m m ,=s ,=. m o m m m m m m rw N N N N N N N N N N N N N N N N N

% % N N N N % N N N % N N N % % % %

N O N O O O O O O O O O O O O O O O O CO w w w w w w w w w w w %., w w w w w w or ed M O O ed O ** O O -* ** O O .-* ** e-e N **

M O O O O O O O O O O O O O O O O O O N

tr N 4J w taJ anJ 6J nJ taJ LaJ LaJ nnJ LaJ La.# w LaJ and LaJ taJ LaJ LaJ e-o H 9 e=e LfB t()

CC N e = . * * * * * * * * *

e e e *

eC CO @ O r* rs N W N rw N @ ** CD N **

ee W N **

D%

, Om M O e e . e e e e e o e e e e e e e e e r% H N W W W H H H H >= > H H H H H H H JO e o e o e e e e e e . . e e e e e e 9m J e4 .J .4 .,A .J J .J .J .J .J ed .J .J .J .J .J .J

,-= m e==, m ,== m e== m e m a , = = m ,= m a.% e== ,==

c c @ W e @ c to e @ to e e e e e e e N N N % % N N N N % N % % N N N N N O e O O O O O O O O O O O O O O O O N w w w w w w mi., w w w w w w w = w w w a

CD i % e-o M O O ** O ee O e-o M ee O O ee *

N .=e i

P% O O O O O O O O O O O O O O O O O O N

N LaJ LaJ LaJ LaJ taJ 4.J Lad LaJ La.s taJ w anJ LaJ LaJ LaJ Las taJ LaJ Em Lad O N H e e e *

e e e e e

e e o e e e e e Cr* N co O rs CO N r* N CQ e-o @ no es rw N N @ N e4 aC CO DN M Cy N e e e e o e o e e o e e o e e e e O >= ce >= p >= W H >- > t- M e- > >= H > >-

u% e e e e e e *

e e o e e . H.

e e L Ps .J e-* .4 .J .J .4 .J ed J .J .J .J =J .J .4 .J .J .J MO

>=

U Z

-e O Cat ee e ** ,~m m m s m m m e os m m s , .-s m e

>= 2 >= r% es N N e% r% rw rs N N r% rw es r% N N r% N M o e N N N % N N N N N N N N N N N N N N

=e ea w N O rw O O O O O O O O O O O O O O O O O >= (S Co w w w w w w w w w w w w w w w w w w

=C Z L M N CC >= ** O E LC ** M O O e.* O m O O M e o o O * .-* N e-o taJ M e.a taJ N O O O O O O O O O O O O O O O O O O N *E e w= U N 8 O & m D E@ LaJ laJ LaJ LaJ tad LaJ LJJ taJ taJ &aJ LaJ LaJ LaJ LJ knJ LaJ LaJ &nJ Z CL aC ). g O g,J O r Lad et *- O >= e ce taJ U J *E U CC 2N e e *

e * * * *

e * * *

e e e J ea O I CL CL sC CQ to O to @ s-e W ==e r% es W e-o rw P% On sae to N m CQ J D >= D%

, *C G3 M aC e >= CF N M p a CL M m o e e e . e e e e e e e o e e e e CL CC saa LaJ M

.,,g na.s M

VN >=

e N >= > t- >= >= >= >= >= >= H >= H >.* >= >= >=

C er e e e e e e e e e o e e e e o e o eC t% M *-e et NO .2 M .J .J .J .4 J .J .J .J .J .J .J e.J .J .J .J .J 9

M O D 2*. Lad M O M Z aC U O E CL j CD >C

w iaJ ,-. m m ,-- a m m - - a m m m - - - m 1 M rw r% N N es r% r% N r% P% rw N r% rw es es r% N 1

% % % % % % % N N N %% % % % N N **% N N O N O O O O O O O O O O O O O O Co %., w w .O. w .O, w %., w w %, w w %., w w w N

CD M M o O ed O .-e o o e e-e O O e e-o ee N O O O O O O O O O O O O O O O O O O O N

Caf M LaJ LaJ LaJ LaJ LaJ LeJ Lad LaJ LaJ LeJ LsJ &aJ La# LnJ LaJ &nJ LaJ &aJ Lad O

>= a M

' Cg N e e * *

e o e e e e e e e * *

e aC CD trl O @ W *-* @ e-o r* r% *O M rs N e-o e-o to N .-e D *%

C7 M +4 i e-s e e e e e e e e e e e e o e o e e l

+J N e e-o D-N e

>= >=

e 9=

e

>= e

>=e >= >= >= >= D-= >= >= >= >* >= >=

e e e . e e . . . . . .

mO J -e .J J .a J J J J a .J .J J .J J J .J .J l

l Oa r .e er ., w w w ., .e n ., ., ., , ., n r n

== taa r% r* r% r N r% rs r% r% r% es rs r% r% P% N Ps r*

N y

NE eC x . . . . . . . . . . . . . . . . . .

I g &D .-e ee e4 m e4 m m e ee ee m m e-o m en ee e4 e.e t)

MZ 90 to to @ to @ c e c @ to to 40 to e to W e l _

W z

i Z w l La4 O M @ er P= 0 -* ** to fu i .J*= .

er CD CFt O itt in O O -e m M er er er N N ,

CL # r% O LA LA la to LD CFt e-e e=e M e-e ce e-o sae .=* N N X 4.J 4 er e e e 6 e e e a e-4 6 e e 4 9 e e

C D D e C O @ O C L 3 3 e en e 80 t' W st 4 WZ CD M 2* O La, U N N Eg CC e-. U U Cn U U M >=

74

T TELEDYNE ISOTOPES

0. GROUNDWATER (See Tables 0-1 and 0-2)

STATIONS 11, 47 Groundwater was collected from two stations quarterly and analyzed for gross beta and gross alpha activity, for tritium and for ganma emitting radionuclides. Station 11 is 0.15 miles from the plant ana station 47 is 25.75 miles from, the plant. There was one gross alpha detection at station 11 of 1.8 pCi/ liter in the second quarter of 1982. The gross beta activity averaged 8.3 pCi/ liter which is statistically the s ame as in past years.

There were no detections of gamma emitters above the minimum level of detec-tion. The tritium level averaged 160 pCi/ liter for the year which is the normal environmental level.

There was no dif ference in levels of beta activity or tritium for the station close to the plant as compared with the more distant station. It may be concluded that there is no impact frcm the operations of CNS on the en-vironment as shown by measurements of radionuclides in groundwater.

75

I "WTELEDYNEISOTOPES TABLE 0-1 NESRASKA PUBLIC POWER O! STRICT COOPER NUCLEAR STATION EXPOSURE PATHWAY - WATERBORNE GROUND WATER - pC1/f SAMPLE STATION 1st Q"ARTER 2nd QUARTER 3rd QUARTER 4th QUARTER NUCLIDE NUMBER 01/25/92 04/26/82 07/26/82 10/25/82 l Gross 11, 47 Meanistd.dev. L.T. 4. E 00 1.8 1 1.3 E 00 L.T. 3. E 00 L.T. 4 E 00 Alpha det./ total 0/2 1/2 0/2 0/2 range -- -- -- --

Gross 11, 47 Meanistd.dev. 9.5 1 0.3 E 00 6.8 1 1.4 E 00 7.2 1 0.6 E 00 9.8 t 3.1 E 00 Beta det./ total 2/2 . 2/2 2/2 2/2 range (9.3-9.7)E 00 (5.8-7.8)E 00 (6.7-7.6)E 00 (7.2-12.0)E 00 H-3 11, 47 Meanistd.dev. 2.7 1 0.7 E 02 1.4 i 0.6 E 02 1.3 0.4 E 02 1.31 0.4 E 02 det./ total 2/2 2/2 2/2 2/2 range (2.2-3.2)E 02 (1.0-1.8)E 02 (1.0-1.6)E 02 (1.0-1.5)E 02 1

Eighteen gamma emitters were monitored on a Ge(L1) spectrometer. All were below the limits of detection and are listed on Table 0-2.

,_.s m m m m m m m m m m m m m m m N N o m m N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N O O O O O O N O O O O O O O O O O O O w w w w w w w w w w w w w w w w w w M N O O eg O e-* O O M M O O e-e e-a w O O O O O O O e4 N O O O O O O O 'O O O O Cr Lad W LaJ &nJ w w kJ naJ w LJ w LaJ w w w w w uJ hJ

>- N

gr N e o e e a e e e o e e e e . . e o e

C M) @ W @ @ M @ M N N til N N N ee N @ ee DN ee O nn N e e e e e e e o e e o e a e e e e .

EN >= >= >= >= >= >= >= >= >= >=e >=e >= H eso e e o e e e o e 8-= l- >= H H

o e e e o e e e et M J .4 .J .J .J J ed .J .J .J .J .J .J .J .J .J .J .J m m m m o o m m e o e m m m o m m m N N N N N N N N N N N N N N N N N N N N N N N N. N N N N N N N N N N N N O O O O O O O O O O O O O O O O O w w w w w w w w w w w w O

w w w w w w m N O O O O O O *-e O ed O O O eo " N O O O O O O O O O O O O O O O O O O O hJ w kJ w w w w w LaJ LJ kJ aaJ LaJ w w kJ K LaJ kJ LaJ

>= e o e e e e e e e o e o e e e e e e Cg N v e-o att er Og m e nn en y cc in an N ee et ee m eC CO DN O@ e e e e . . e e e o e e . . . . e H N >= >= >=e >= >= >= >=

u kJ gN e e o t-e e e o 0-e

>= >= >= >=

e o e e

>= >= >= >= >=

o e e e-e Z e o LN .J J .J .J J .J .J J ) .J J .J .J J J CE CK mo J J .J

>= Z O M O CO oa ce CE O D= kJ M eC >= % *=e, m m m m oen m m m m m m m m m m CC >= eC e e m N N N N N N N N 9 N N N N N N N N kJ M 3 U N N N N N N N N N N N N N N N N N N N N 3 C1 O O O O O O O O Cr O O O O O O O O O O O e a w w w w w w ea w w w w w w w w w O 4 et w w e

uJ >= e4 N O O .-e O e-o O O e-e O hk U

- O .e N ce N e J et Cf C O O O O O O O O O O O O O O O O O

_J *e u 3 ta.s to J D I >= CC LaJ LaJ LaJ Lad hJ kJ hJ kJ kJ ha LaJ kJ LaJ eC to Z >= eC LaJ LaJ kJ naJ LaJ kJ

>= D eC 3 0-ch gE Ch O Cf N e

e e

e e * *

e e

e * *

e i kJ Z st CO to ** to @ e=e to M @ nn N et CL hk 3 3%

P% to to ee e-4 er e-o e=e

, M O M O O@

M O 3 Cr N e e e e o e e e e o e e e e a e e e EC U to O *'3 % >= >== >= >= >= >= >= >=e >= >=

gr O C: er = e *

e * .

8=

o e a 9-e H

>= >=* >=* >= >=

(D th NO .J J .J .J J d .J .J .J .J .J .4 .J .J .J J .J .J LaJ M Z LaJ m m m m o m m e% m m m m m m e m e m N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N O O O O O O O O O O O O O O O O O O w w w w w w w w w %, w w w ee w w w w eo N O O e-o o e-* O O eo o O O O e-a ce N e-e O O O O O O O O O O O O O O O O O O CC LaJ LaJ &nd hJ nnJ ts.4 LaJ w LaJ LaJ kJ kJ kJ kJ w LaJ LaJ kJ LaJ

>=

Cg N e e e e . . e e o e e e o e e e e e aC CO nn N in nn N en em C @ nn O's W @ r% e-e to e=e M DN O sn N e e e o e e e e e e o e e . . e e

>= >= >= >* >= >= >* >= >= >= >= >= >= >== >= >= >=

.A N 9=

en e a e o e e e e e o e e e e e e e e e e MO .J .J .J .J .J J J .J .J .J J J .J .J J .J .J J 1

I t

E O CE f% P% Ps Ps N >% N 8% N es N r% N N r% N N N

=e LaJ er *F W af W er w at W er et et W gr et 4 *F *F

(/) >= Ch3 y eC 3- . . . . . . . . . . . . . . . . . .

g H3 == .* eo - e-o m e-o em eo ee e.e e m e.e e e e-o j u's Z eo .g eo e-o e-o e-o e-o e-o m e-o m e-e e.e e-o e me e-e j e W

! Z w

, m @ et t% O w er W to h4J e-O. *F CO On O gn en O O e-a mm =t es er N N tL .,, 9% O en en st1 @ @ On e-o e.e m eo en en m eo N N

); U e er 9 0 s e i e e e og 4 e e 0 t t 4 et D & a C O O O C h 3 3 e 4A we 48 & C eC E en *E to M 2.; LJ h. U N N (K CE ** U U CO U U >*

CE 77

WTELEDYNE ISOTOPES P. RIVER WATER (See Table P-1 and P-2)

STATIONS 12,13,28 River water was collected monthly and monitored for gross beta and gross alpha, suspended and dissolved, Sr-89 and Sr-90. A quarterly composite was measured for gamma emitters and tritium.

There were no detections of gamma emitters above the minimum level of detection. No Sr-89 was detected.

There was one detection of Sr-90 at station 13 in the second quarter at O.76 pCi/ liter which is below the minimum level of detection. This was probably caused by the flood conditions in the spring or it may have been an anomaly since no further detections occurred. The gross alpha and gross beta suspended and dissolved were higher than in the previous year. The yearly average was increased by the high readings in the spring due to flooding conditions. This is further supported by the increase in gross alpha and gross beta, suspended particules, due to the turbulence.

The yearly averages are as follows:

1982 1981 Average pCi/ liter Average per/ liter ,

Gross Alpha 4.5 2.9 (dissolved)

Gross Alpha 7.2 2.7 (suspended)

Gross Beta 10.0 9.5 (dissolved)

Gross Beta 16.0 3.9 (suspended)

This was due to naturally occurring nuclides and is not associated with the operations of CNS. By the last quarter of 1982 readings had returned to normal environmental levels.

These measurements indicate that the river water samples monitored during 1982 contained no detectable CNS plant radionuclides. Additional verification of no detectable releases is the low range of H-3 activity which was from 100 to 410 pCi/ liter.

78

TTELEDYtm ISOTOPES TABLE P-1 NEBRASKA PUBLIC POWER 0! STRICT COOPER NUCLEAR STATION EXPOSURE PATHWAY - Waterborr.e River Water - pC1/f SAMPLE STATION lst QUARTER 2nd QUARTER 3rd QUARTER 4th QUARTER NUELIDE NUMBER 01/12/82-03/09/82 04/18/82-06/23/82 07/27/82-09/08/82 10/04/32-12/0//82 Gross Alpha 12, 13, 28 Meanistd.dev. 3.5 i 1.3 E 00 5.1 1 2.3 E 00 L.T. 4 E 00 L.T. 1. E 00 (dissolved) det./ total 2/9 4/9 0/9 0/9 range (2.6-4.4)E 00 (2.6-8.1)E 00 -- --

Gross Alpha 12, 13, 28 Meanistd.dev. L.T. 4 E 00 11.2 i 12.9 E 00 2.1 1 0.6 E 00 6.1 2.4 E 00 (suspended) O/9 8/9 det./ total 5/9 4/9 range (1.9-40.0)E-00 (1.2-2.8)E 00 (3.7-9.0)E 00 Gross Beta 12, 13, 28 Heanistd.dev. 10.0 1 0.2 E 00 13.0 1 4.6 E 00 9.0 1 3.0 E 00 8.2 1 2.0 E 00 (dissolved) det./ total 9/9 9/9 9/9 9/9 ran9e (0.7-1.2)E 01 (8.0-21.0)E 00 (0.5-14.0)E 00 (4.8-II.0)E 00 5 Gross Beta 12, 13, 28 Mean std.dev. 4.3 i 3.6 E 00 39. t 45. E 00 6.1 2 3.3 E 00 11.2 1 3.0 E C0 (suspended) det./ total 6/9 9/9 9/9 9/9 range (0.8-8.9)E 00 (9.7-150.0)E 00 (2.1-ll.0)E 00 (7.4-15.0)E 00 Sr-89 12, 13, 28 Meantstd.dev. L.T. 1. E 00 L.T. 1. E 00 1. E 00 L.T. L.T. 1. E 00 det./ total 0/9 0/9 0/9 0/9 range -- -- -- --

Sr-90 12, 13, 28 Meantstd.dev. L.T. 9. E-01 9.

7.6 i 4.8 E-01 L.T. E-01 L.T. 9. E-01 det./ total 0/9 1/9 0/9 0/9 range -- -- -- --

H-3 12, 13, 28 Meanistd.dev. 2.6 i 1.4 E 02 1.2.1 0.3 E 02 1.7 2 0.1 E 02 2.0 1 0.3 E 02 det./ total 3/3 3/3 J/3 3/3 (a) range (1.3-3.1)E 02 (1.0-1.5)E 02 (1.7-1.8)E 02 (1.7-2.3)E 02 (a) Tritium analysis is perforced on the quarterly composite of all stations only.

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80 1

TTELEDYNE ISOTOPES Q. ANIMALS - RABBITS (See Tables 0-1 and 0-2)

STATION 28 and 35 Rabbit samples were collected from stations 28 and 35 in the f all of i 1982. The femur was analyzed for Sr-89 and Sr-90, the thyroid gland for I-131 and the muscle for gamma emitters. Strontium 90 was detected in four of four s amples analyzed at a level of 0.22 pCi/gm, wet, which is similar to the J levels of previous years. Iodine-131 analyses of the thyroid gland conducted by the chemical separation method were below the minimum level of detection.

There were no gamma emitters detected except for naturally occurring K-40 which was at the same level as in the previous years from 1977 through 1981.

Cesium-137 was below the lower limit of detection.

The results of the monitoring of rabbit samples indicate that no nuclear plant effects resulting from the operations of CNS were detectable in animal life.

i .

4 l

l l

l e

81 s

l l

\ -

. _ . . . _ . . , _-_ . . - . . . . _ . - . _ . . _ . . _ . . . . . _ _ . _ . . . _ _ . . _ - _ _ _ _ _ _ -. . _ . . , . . - _ _ . . . . - _ . . _ - - . . . _ - - _.. . _ . _ _ _ _ . . _ _ _ _ . __ . . . _ . . . m TTELEDYNE ISOTOPES TABLE Q-1 NEBRASKA PUBLIC POWER DISTRICT COOPER NUCLEAR STATION EXPOSURE PATHWAY - INGESTION RABBIT - pC1/gm, wet SA*PLE STATION NUCLIDE NUMBER 4th QUARTER 11/04/82-11/15/82 Sr-89 28, 35 Mean std.dev.

(femur) det./ total L.T. 3. E-01 i range 0/4

Sr-90 28, 35 Meanistd.dev. 2.3 2 0.6 E-01 (femur) det./ total 4/4 ;

i range (1.6-2.8) E-01 [

1-131 28, 35 Meanzstd.dev.

(throid L.T. 2. E 00 det./ total

, by chemical range 0/4 j separation) !

t

, K-40 28, 35 Meanistd.dev. 3.0 2 0.7 E 00 5

(flesh) det./ total 4/4 l

range ,

a3 w (2.3 c.0) E 00 ;

Cs-137 28, 35 Heantstd.dev.

l (flesh) L.T. 6. E-02 l det./ total 0/4 range --

I' L

8

- _ _ - - _ _ . . _ . _ _ _ . _ . _ - __ . . _ _ _ . _ . . _ - _. ._-. . __ -_ _ __ _ .~ - _ __-_ _ _--__

"/PTELEDYNE ISOTOPES TABLE Q-2 NEBRASKA PUBLIC POWER DISTRICT

, COOPER NUCLEAR STATION i

EXPOSURE PATHWAY - INGESTION RABBIT - pC1/gm, wet t i

SAMPLE STATION 4th QUARTER NUCLIDE NUMBER 11/04/82-11/15/82 Be-7 28, 35 6.

L.T. E-01 (0/4)

K-40 28, 35 i

3.0 1 0.7 E 00 (4/4)

Mn-54 28, 35 L.T. 6. E-02 (0/4)

Co-58 28, 35 L.T. 6. E-02 (0/4)

Fe-59 28, 35 L.T. 2. E-01 (0/4)

Co-60 28, 35 L.T. 6. E-02 (0/4) 2n-65 28, 35 L.T. 2. E-01 (0/4)

Zr-95 28, 35 7.

3 w -

L.T. E-02 (0/4)

Ru-103 28, 35 L.T. 8. E-02 (0/4)

Ru-106 28, 35 L.T. 6. E-01 (0/4)

I-131 28, 35 4.

L.T. E-01 (0/4)

Cs-134 28, 35 L.T. 6. E-02 (0/4)

Cs-137 28, 35 6.

L.T. E-02 (0/4) i

! Ba-140 28, 35 2.

L.T. E-01 (0/4)

Ce-141 28, 35 2.

, L.T. E-01 (0/4)

Ce-144 28, 35 L.T. 5. E-01 (0/4)

RA-226 28, 35 L.T. 1. E 00 (0/4)

Th-228 28, 35 L.T. 1. E-01 (0/4) 1

TTELEDYNE ISOTOPES R. AQUATIC VEGETATIO:4 .

STATI0ti 12, 13, 28 No samples were collected during 1982. There was no growth at any of the stations because of spring flooding conditions and dry summer weather prohibit-ing growth. The absence of sufficient growth was observed on numerous visits to these stations.

d 6

84

7TEl EDYNE ISOTOPES TABLE R-1 NEBRASKA PUBLIC POWER DISTRICT COOPER NUCLEAR STATION EXPOSURE PATHWAY - INGESTION VEGETATION / AQUATIC pCi/gm. wet SAMPLE STATION 15t QUARTER 2nd QUARTER 3rd QUARTER 4th QUARTER NUCLICE NUv.3 E R 12, 13, 28 No aquatic vegetation was collected in 1982. Fluctuating water levels and excessive turbidity prevented its establishment. The absence of sufficient growth was observed on numerous visits to these stations. Scheduled to be collected two times per year.

l

TTELEDYNE ISOTOPES S. S0ll ,

STATIONS 2,3,4,5,6,7,8,9,10 Soil samples, which must be analyzed every three years for Strontium-90 and gamma emitters, were collected and analyzed in 1981.

Soil samples will be collected and analyzed in 1984.

86

I TTELEDYNE 1 ISOTOPES I l

i T. AMBIEt1T RADIATION - THERMOLUMIt1ESCEt:T 00SIMETERS (TLDs - SEE TABLE T-1)

STATIONS 01-10,15,18,22,44,58,59 Ambient radiation was monitored at 16 locations within a 10 mile radius of Ct45 anc, collected quarterly. The quarterly averages of ambient net gamma radiation ranged from 18.9 6.1 milliroentgen / quarter (91 days) to 22.5 6.5 milliroentgen / quarter. The highest exposure during each of the four quarters was at station 01 (0.1 mile, 225 degrees) and averaged 37.1 2.1 mR/ quarter.

The lowest exposure was at station 03 (2.5 miles, 338 degrees) and averaged 17.2 0.5 mR/ quarter.

The radiation at station 44, which is the control station, was similar to that at the other stations.

These exposures were considerably below the 125 millirems per quarter specified in 10 CFR 20.105 for an unrestricted area. The relationship between milliroentgen (mR) and millirems (mr) is approximately one for the exposure conditions encountered. tio plant effect from Ct45 was indicated.

i I

e 87

. - - . . - .. . . - . . - .- - _- . _ _ - . . ,. --- . - _ . - . . - ~ - -

TTELEDYNE ISOTOPES TABLE T-1 l

l NEBRASKA PUBLIC POWER O! STRICT COOPER NUCLEAR STATION EXPOSURE PATHWAY - ANSIENT GAMMA RA0!ATION: TLO l

ml111 Roentgen / Quarter SAMPLE STATION 1st QUARTER 2nd QUARTER 3rd QUARTER 4th QUARTER hUCt!0E NUMBER 01/04/82-04/01/82 04/01/82-06/29/82 06/29/82-10/01/82 10/01/82-01/04/83 TLU 01 41.8 2 1.0 33.6 1 0.6 41.9 i 0.6 46.3 2 1.5 Gamma 02 16.7 t 0.7 19.1 1 1.1 19.4 1 1.1 20.0 1 0.4 03 1b.0 1 0.5 17.0 1 0.2 17.3 1 0./ 18.6 1 0.b 04 lb.b i 0.b 18.2 1 0.7 18.5 1 0.3 19.6 i 0.4 i

US 18.0 1 0.4 17.7 i 0.6 18.6 i 1.6 20.0 2 0.2 06 17.4 t 0.4 (a) 18.2 1 0.6 18.7 1 0.5 20.3 0.3 j 07 17.0 0.4 17.9 1 0.4 18.6 1 0.6 19.7 1 0.3 1

08 17.8 i 0.3 17.4 1 1.2 18.7 1 0.3 21.1 2 0.3 i 00 0

! 09 17.0 1 0.5 17.9 t 0.5 18.9 1 0.3 20.0 2 0.3 10 17.8 i 0.3 17.9 i 0.9 19.4 1 0.3 20.1 1 0.6 15 17.6 1 0.6 19.3 i 0.5 20.1 1 0.5 22.4 0.3

, 18 17.6 0.3 (b) 19.7 i 0.6 21.3 1 0.3 22 18.2 1 0.5 18.9 1 0.4 20.2 1 0.9 21.8 1 0.2 44 17.2 1 0.7 21.1 i 0.8 21.4 1 0.7 23.7 i 0.4 l 58 18.5 t 0.5 19.9 i 0.7 20.8 1 0.6 22.3 1 0.4

$9 17.7 1 0.3 19.4 1 0.7 20.2 1 0.3 23.1 2 0.2

. Average / Quarter 18.9 i 6.1 mR/87 Days 19.6 i 4.0 mR/89 days 20.8 i 5.7 mR/94 days 22.5 1 6.5 mR/95 d ays

Average / Day 0.22 i 0.07 mR/ day 0.22 i 0.05 mR/ day 0.22 1 0.06 mR/ day 0.24 1 0.07 mR/ day Range (16.0-41.8) mR/87 d ays (17.0-33.6) mR/89 d ays (17.3-41.9) mR/94 days (18.6-46.3) mR/95 day.

Det./ Total 16/16 15/15 (b) 16/16 16/16 i

l (a) Average of areas 1,3 and 4 Using the criterion that, if the value of one area is outside the range of 3 std. dev.

l from the average of the other 3 areas, then that area will be excluded from the final average determination.

(b) Dosineter missing for the second quarter due to vandalism.

. Nebraska Public Power District Cooper Nuclear Station Annual Environmental Operating Report Volume 11 - Radiological Environmental Radiation Monitoring Program January 1,1982 - December 31,1982 USNRC Docket Number 50-298 s Prepared by TELEDYNE ISOTOPES

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