Text

Annual Radiological Environ Operating Rept Environ Radiation Monitoring Program Jan-Dec 1993
	ML20065L198
Person / Time
Site:	Cooper
Issue date:	12/31/1993
From:	Martin J; NEBRASKA PUBLIC POWER DISTRICT
To:	;
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ML20065L019	List: ML20065L015; ML20065L198;
References
	NUDOCS 9404200336
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'A'TELEDYNE ISOTOPES

, 1 i REPORT TO NEBRASKA PUBLIC POWER DISTRICT l

< COLUMBUS. NEBRASKA l RADIATION ENVIRONMENTAL MONITORING PROGRAM .l COOPER NUCLEAR STATION NEMAHA COUNTY, NEBRASKA ANNUAL REPORT l JANUARY 1 TO DECEMBER 31,1993 j

. t PREPARED BY TELEDYNE ISOTOPES 50 VAN BUREN AVENUE WESTWOOD, NEW JERSEY 07675-1235 l

REPORT APPROVED BY: h b J. DAVID MARTIN, MANAGER ENVIRONMENTAL ANALYSIS DEPARTMENT W

9404200336 940407 PDR ADOCK 05000298 R PDR

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i PREFACE This report covers the period of January 1 through December 31,

= 1993. All sample collections were made by a contractor and personnel of the Nebraska Public Power District. Analyses were performed and reports of analyses were prepared by Teledyne Isotopes and forwarded to Nebraska Public Power District.

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TABLE OF CONTENTS PAGE o Preface.........................................................................................................................

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UstofTables.............................................................................................................. vi UstofMgures........................................................................................................... vii -

I. I n t r o d u c ti o n .. .. . . .. .. . .. . . . . .. .. .. .. .. .. . .. .. .. . . . . . . .. .. . . . . . . . .. .. .. .. .. ... .. .. .. .. . . . . . . . .. . ... . . .. .. .. .. . . . . . . . . . . . . . . . 1 II. Summary.......................................................................................................................2 III. Sampling and Analyses Program. Stations and Maps .................................. 3 IV . Di s c u s s i o n . .. . .. .. . . . . . . . . . . .. . . . . . .. . . . . . . . . . . . . . . . . . . . . .. . . .. . . . . . . . ... .. . . . . . .. . .. .. . .. .. . . . .. . . . . . . . . . . . . .. . . . . . .. . . . . . 14 A. Program Objectives and Data Interpretation B. Atmospheric Nuclear Detonations V. Radiological Environmental Monitoring Program Summary Table 3...15 e REMPS TABLE 3 ANNUAL

SUMMARY

OF ALL STATIONS OF THE ............16 ,

ISOTOPES OF INTEREST WITH YEARLY AVERAGE -l ACTIVITY, NUMBER OF DETECTIONS PER TOTAL STATION WITH HIGHEST AVERAGE ACTIVITY, AVERAGE OF CONTROL STATION AND INCLUSIVE DATES OF ANALYSES .

VI.

DISCUSSION. IMPACT ON THE ENVIRONMEhrr, GRAPHS OF .................. 28 i RESULTS AND STATISTICAL TABLES FOR EACH QUARTER A and B. AIR PARTICULATES - GROSS BETA - GROSS ALPHA .................... 29 C. C HARC OAL FI LTE R. I - 1 3 1 . . .. . . . .. ..... . .. ... . . ... .. . . . ... .. . .. .. . .. ...... .. ... .. .. . .. . . . .. . .. . .. .. 43 D. COMPOSITE OF AIR PARTICUIATE FILTERS - GAMMA .............. 50

- E. FISH.....................................................................................................................57 F. MILK - NEAREST PRODU C ER ........................ ......................................... 62 G. MILK - OTHER PRODUCERS ................................................................69 111

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

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1 TABLE OF CONTENTS PAGE H. . GROUNDWATER ..........................................................................................76 1

1. RIVER WATER ..............................................................................................81 j 1

J. THERMOLUMINESCENT DOSIMETERS ..........................................88. I 1

K. FOOD - BROADLEAF VEGETATION ......................................................95 ,

1 L S H O RE LI NE SE D I ME NT .... ...... . ... .. . .. . .... ..... . .. .. ... .. .... .. . ... . .. ... . .......... .. ... . .. 100 VI I . C OM PLETE DATA TAB LE S ... ... ................. ... ... ........ ................ .... ............ . ... .. .... . 104 A.B,C. AIR PARTICULATE FILTERS - GROSS ALPHA, .........................105 GROSS BETA 1-131 )

D. COMPOSITE - AIR PARTICULATE FILTERS ...............................126 1

. l E. FISH.............................................................................................................137' .

l d E M ILK - NEAREST PROD U C ER .......................................................... 140 )1 1

G. MILK - OTH ER PRODU C E RS .. ........................................ ................ ... 147 1 1

1 H. G ROU NDWATE R ... .. . .. . .. .... .. ... . .. . .. ... . ... .. . ..... . .. ... ... . ... ... .. ... . .. . ... ..... . .. ... . .. . . 150

1. RIVE R WATE R . . .. . .. . .. . .. .. . . .. . .. . . . . .. . . . . . . . .. . .. . .. . . . . . . . .. . .. . .. . . . . .. . .. . .. . .. . .. . . . . . . . . . . . . . 153 i

J. TH E RM O LU M I NES C E NT D O SIM ETERS ................................. .... 160 K. FOOD - BROADLEAF VEG ETATION .................................................165 L SH ORELI NE S ED I M E NT .. ........ ................... ....... .............................. ... 178 i

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Rett.NENCES...................................................................................................................I80 !

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TABLE OF CONTENTS PAGE VIII. Appendix A. LAND U S E C E N S U S . .. . .. .. . .. . ....... . .. ........ ... .. . .. .. . .. . . . .. . .. . .... . . . ..... ... ... .. ... . .. .. .A- 1 B INTERLABORATORY COMPARISON PROGRAM ...........................B-1 1

C STATI STI CAL NOTE S . .. . . . .. .. . ...... . .. .. . .. .. ..... . .. ..... .. . . . .. ... .. .. ... .. . .. .... . .... . .. .. .C- 1 D. NOTI FI CATI O N LEVE LS . . .. .. ... .. . . . ... ..... .. . .. .. . .. . .. .. . . . .. . .. . .. .. ... ... .... ... . ..... ...D- 1 E . C O NVE NTI O N S . . . .. . . . . . . . . . . . . .. . .. . . . .. . . . . .. . .. . . . .. . . . . .. .. . .. . .. . . . . . . . . . .. . . . . .. .. . .. . .. . . . . . . . . .E- 1 F. DEIECT10N CAPABIIJITES. .. ... . ... . . .. . . .... ... . . . .... .. . . .. .. . ... ... . . .. . . .... ... . . .. . . . .F- 1 G. SAMPLE STATION LOCATION AND SAMPLE TYPES................G-1 H.

SUMMARY

OF DOSES TO A MEMBER OF THE PUBLIC...........H-1 OFF-SITE l

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LIST OF TABLES

- 1 TABLES TITLE PAGE

! 1 Sampling schedule and analysis, 8 1992, Cooper Nuclear Station i 1

2 Sample Station Location with 10 Distance and Direction from the I

Elevated Release Point (ERP) 3 Summary of Radiological Monitoring 16 Program i

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A to L Statistical Summary Tables - Section VI pages28-103 By Sample Type j i

A to L Data Tables - Section VII pages 104-179 By Sample Type and Station l

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i LIST OF FIGURES No. Titie P_ age l

1. Maps of sampling stations. Cooper Nuclear Station..............................12.13 A-1 Air Particulate, Gross Beta - CNS....................................................31,32,51,52 A-2 Air Particulates, Gross Beta - ERAMS........................................... 33,34,53,54 j B-1 Air Particulates, Gross Alpha - CNS............................................... 31,32,51,52 l

l C-1 Airborne - Iodine. CNS. . . . . . . . . . .. . . . .. .. . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . .. . . .. . .. . . . . .. . . . .. . . .. .. . . 4 4 , 4 5 l

D-1 Air Particulates - Ce-144 - CNS...................................................... 31,32,51,52 D-2 Air Particulates Ce- 144 - EML. . ..... .. . . ... . .. .. .. . . .. .. .. . .. . . ... . .. . . .. .. .. .. . ..... . . .. . . .. . . .. . 5 3, 5 4 E-1 Fish, Gross Beta. K-40, Sr-90 and Cs-137 - All IAcations................. 58,59 F-1 Milk - Nearest Producer, K-40. I-131 and Cs-137.............................. 63,64 i- F-2 Milk - Nearest Producer, Sr-89. Sr-90 and Elem. Ca......................... 65,66 l

l G-1 Milk - Commercial Producers. K-40,1-131 and Cs-137.................... 70,71 I'

G-2 Milk - Commercial Producers. Sr-89, Sr-90 and Elem. Ca.............. 72,73 H-1 Groundwater - All Locations. Gross Alpha. Beta and H-3................... 77,78 I-1 River Water - All Locations. Gross Alpha. Beta....................................... 82,83 I-2 River Water - All IAcations, Sr-89. Sr-90 and H-3............................... 84,85 J-1 'Ihermoluminescent Dosimetry - All 14 cations..................................... 89,90 K-1 Food - Broadleaf Vegetation - All locations.................................................... 96 L-1 Shoreline Sediment - K-40,1-131 Cs-134 and Cs-137.........................101 vil I

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. l L' INTRODUCTION '

This report contains a complete tabulation of data collected during the I period January through December 1993, for~ the operational Radiological j Environmental Monitoring Program performed for the Cooper Nuclear !

Station (CNS) of the Nebraska Public Power District (NPPD) by. Teledyne Isotopes.

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: l Missouri. The reactor is a 778 megawatt boiling water reactor. Initial

criticality.was attained on February 21, 1974. The reactor reached 50% i

power on June 25,1974 and.100% power on November 20,1974.

, Radiological environmental monitoring 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. Most samples are collected by NPPD personnel. All are shipped.for analysis to a 1

contractor's laboratory where there exists special: facilities required. for measurements of extremely low levels of radioactivity. From 1971. through 1

- 1976 the contractor was Teledyne Isotopes, Westwood, New Jersey. NALCO Environmental Sciences assumed responsibility for the analyses effective January 1,1977.

4 On November 1,1978 Hazelton Environmental Sciences- Corporation (HESC) assumed responsibility for the program. Prior to -November 1,1978 i Hazelton Environmental Sciences' operated as NALCO Environmental

Sciences. Teledyne Isotopes again assumed responsibility for the analyses effective January 1,1979 through December 31,1993.

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l II.

SUMMARY

Presented in this report are summaries and discussions'of the data generated for the Radiological Environmental Monitoring Program (REMP) for the Cooper Nuclear Station (CNS) of the Nebraska Public Power District -

(NPPD) for 1993.

Part V, Table 3 presents the yearly summary of the program with the total j number of samples of each type analyzed, the yearly average for all samples, the number of detections per total number of samples, the station with the highest average, the average of the control station, and the inclusive dates of the analyses.

Part VI is a discussion of each type of sample analyzed and its impact, if any, on the environment. Included also is a graph of the isotopes of interest since 1977 and the statistical results for each quarter of the year. This is followed by a complete tabulation of the data by sample type and station number. .

The 1993 radiological environmental measurements for CNS indicates that there has been no residual fallout resulting from the explosion and fire at the Chernobyl Reactor in the Soviet Union .which occurred on April 26.

j 1986. It may be concluded from all measurements taken that the operations of CNS had no detectable impact on the environment in the vicinity of CNS.

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! III. SAMPLING AND ANALYSES PROGRAM. STATIONS AND MAPS I~ The 1993 sampling and analysis program is described in Table 1.

l Teledyne Isotopes has a comprehensive quality assurance / quality control

!- program designed to assure the reliability of data obtained. The results for

, 1993 of the Intercomparison Program conducted by the EPA Environmental

! Monitoring Systems Laboratory in Las Vegas, Nevada, are contained in Appendix B.

Sampling locations are summarized in Table 2. The type or status of l i

each location and its distance and direction from the reactor elevated re- '

lease point are specified. A map of locations follows (Figure 1). Complete descriptions of current and earlier sampling locations are given in Appendix G.

The annual land use census for 1993 is described in Appendix A.

. There were no milk animals found within three miles of CNS in 1993.

] Gardens were found in 11 sectors within 3 miles of CNS in 1992. Only 4 Sectors contained gardens during 1993 due to the flooding of the Missouri River.

All of the required samples were analyzed in 1993 except for the ,

following:

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COLLECTION ls PATHWAY SAMPLE STATION PERIOD REASON

Airborne Air Particulate 07 05/04-05/11 Pump out of service.

Airborne Charcoal 07 05/04-05/11 Pump out of i sendee.

Airborne Air Particulate 07 05/18-05/25 Pump out of j service.

I Airborne Charcoal 07 05/18-05/25 Pump out of i service.

4 i Airborne Air Particulate 07 05/25-06/01 Pump out of

service.

Airborne Charcoal 07 05/25-06/01 Pump out of service.

Airborne Air Particulate 03 07/06-07/13 Missouri River Flood 3

. COLLECTION PATHWAY SAMPLE STATION PERIOD REASON l

Airborne Charcoal 03 07/06-07/13 Missouri l River Flood i Airborne Air Particulate 03 07/13-07/20 Missouri River Flood l Airborne Charcoal 03 07/13-07/20 Missouri River Flood Airborne Air Particulate 02-06 07/20-07/28 Missouri River Flood ,

1 Airborne Charcoal 02-06 07/20-07/28 Missouri River Flood i l

Airborne Air Particulate 02-06 07/28-08/03 Missouri i River Flood Airborne Charcoal 02-06 07/28-08/03 Missouri River Flood Airborne Air Particulate 03-06 08/03-08/10 Missouri

> River Flood Airborne Charcoal 03-06 08/03-08/10 Missouri River Flood Airborne Air Particulate 03-06 08/10-08/17 Missouri River Flood Airborne Charcoal 03-06 08/10-08/17 Missouri River Flood l

Airborne Air Particulate 03-06 08/17-08/24 Missouri

! River Flood Airborne Charcoal 03-06 08/17-08/24 Missouri River Flood Airborne Air Particulate 03-06 08/24-08/31 Missouri River Flood

. Airborne Charcoal 03-06 08/24-08/31 Missouri River Flood 4

l COLLECTION PATHWAY SAMPLE STATION PERIOD REASON .

Airborne Air Particulate 03-06 08/31-09/07 Missouri River Flood .

Airborne Charcoal 03-06 08/31-09/07 Missouri River Flood Airborne Air Particulate 03-06 09/07-09/14 MissotLi-1, River Flood Airborne Charcoal 03-06 09/07-09/14 Missouri River Flood Airborne Air Particulate 03-06 09/14-09/22 Missouri l

l River Flood Airborne Charcoal 03-06 09/14-09/22 Missouri River Flood Airborne Air Particulate 03-06 09/22-09/28 Missourt t River Flood Airborne Charcoal 03-06 09/22-09/28 Missouri River Flood i

Airborne Air Particulate 03-06 09/28-10/06 - Missouri River Flood Airborne Charcoal 03-06 09/28-10/06 Missouri River Flood Airborne Air Particulate 03-06 10/06-10/13 Missouri River Flood Airborne Charcoal 03-06 10/06-10/13 Missouri

~ River Flood Airborne Air Particulate 03-06 10/13-10/19 Missouri River Flood Airborne Charcoal 03-06 10/13-10/19 Missouri River Flood Airborne Air Particulate 03-06 10/19-10/26 Missouri River Flood .

Airborne Charcoal 03-06 10/19-10/26 Missouri River Flood 5

COLLECTION

. PA'IEVAY SAMPLE STATION PERIOD REASON Airborne Air Particulate 03-06 10/26-11/02 Missouri River Flood Airborne Charcoal 03-06 10/26-11/02 Missouri River Flood Airborne Air Particulate 03-06 11/02-11/10 Missouri River Flood Airborne Charcoal 03-06 11/02-11/10 Missouri River Flood Airborne Air Particulate 03,05 11/09-11/16 Missouri River Flood Airborne Charcoal 03,05 11/09-11/16 Missouri River Flood Airborne Air Particulate 05 11/16-11/23 Missouri River Flood Airborne Charcoal 05 11/16-11/23 Missouri River Flood J

Airborne Air Particulate 05,07 11/23-12/01 Missouri River Flood Airborne Charcoal 05,07 11/23-12/01 Missouri River Flood Airborne Air Particulate 05,07 12/01-12/07 Missouri l River Flood 1

Airborne Charcoal 05,07 12/01-12/07 Missouri l River Flood 1 Airborne Air Particulate 05,07 12/07-12/14 Missouri l

River Flood Airborne Charcoal 05,07 12/07-12/14 Missouri l River Flood l Airborne Air Particulate 05,07 12/14-12/21 Missouri

. River Flood Airborne Charcoal 05,07 12/14-12/21 Missouri River Flood 6

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COLLECTION l

PATHWAY SAMPLE STATION PERIOD REASON ,

l Airborne Air Particulate 05 12/21-12/28 Missouri -

River Flood Airborne Charcoal 05 12/21-12/28 Missouri River Flood Waterborne River Water 12,28 07/27 Missouri River Flood Ingestion Broadleaf 35 07/20 Missouri Terrestrial River Flood i

Vegetation l

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. TABLE 1 NEBRASKA PUBLIC POWER DISTRICT COOPER NUCLEAR STATION ENVIRONMENTAL RADIATION SURVEILLANCE PROGRAM SAMPLING SCHEDULE AND ANALYSIS ONCE PER 7 DAYS Samole Tvu Station Nos. Analyses Airborne - Particulate 1 - 10 Gross alpha, beta.

Gamma isotopic on quarterly composite of each station and on each sample in which gross beta activity is > 10 times the yearly

. mean of control samples.

Airborne - Iodine 1-10 1-131 JNCE PER 15 DAYS Sample Tyne Station Nos. Analyses Milk - Nearest Producer 99 I-131 (low level)

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

Ca. on monthly composite ONCE PER 31 DAYS Samole Tvoe Station Nos. Analyses River Water 12,28 Gross alpha - sus and dis Gross beta - sus and -

dis. . Sr-89, Sr-90,

. Gamma isotopic Tritium on quarterly composite 8

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ONCE PER 31 DAYS Samole Tvoe Station Nos. -Analyses Milk - Nearest Producer 99 l-131 (low level) .

(except peak pasture Sr-89, Sr-90 season) Elem. Ca Gamma isotopic ;

Food Products - Broad- 35,44,96 1-131 leaf Vegetation (when Gamma isotopic '

available)

ONCE PER 92 DAYS -

L Samole Tvoe Station Nos. Analyses Background Radiation 1 - 10, 20, 44 TLD Readout 56.58,59,66, (gamma dose) 67, 71, 79 - 91, 94 Groundwater 11,47 Gross alpha, beta -

i Gamma isotopic .

Tritium !

Milk - Commercial and 42, 100 1-131 (low level)- '

Other Milk Producers Sr-89, Sr-90 Elem. Ca Gamma isotopic 2 TlMES/ YEAR t Samole Tvoe Station Nos. Analyses Fish (Summer and Fall) 28,35 Gross beta ;

Sr-89, Sr-90 Gamma isotopic i

Shoreline Sediment 28 Gamma isotopic :

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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 DISTANCEa DIRECTIONa l NUMBER (MILES) fDEGREES) CLASSIFICATIOND 1 0.10 225 IND 2 0.75 225 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 8 2.5 260 IND 9 7.3 335 IND l 10 10.0 160 IND 11 0.15 225 IND 12 0.10 360 CON 20 0.96 315 IND 28 1.8 150 IND 35 2.0 350 IND AND CON 42 12.9 156 IND 44 10.3 270 CON 1 47 25.8 154 IND l 56 1.9 118 IND !

58 1.1 219 . IND l 59 1.0 189 IND 66 4.5 200 IND 67 4.8 325 IND 71 4.3 71 IND 79 0.85 299 IND ,

80 0.75 284 IND l 0.80 265 IND 81 82 0.80 176 IND 83 4.4 189 IND 84 4.4 297 IND 85 3.1 3 IND 86 4.6 16 IND l

- 87 1.75 20 IND

! 88 1.75 63 IND 10

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STATION. DISTANCEa DIRECTIONa NUMBER fMILES) (DEGREES) CLASSIFICATIOND .

89 2.0 86 IND ,

90 2.25 134 IND 91 6.9 54 IND 94 3.6 108 IND ;

96 1.25 334 IND 99 10.25 189 IND 100 11.5 197 IND a Distance and direction are specified with respect to reactor elevated release point.

b Classification codes: IND = indicator: CON = control.

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l IV. DISCUSSION A. Program Obtectives and Data Interoretation ,

The objective of the monitoring program is to detect and assess the im-pact of possible releases to the environs of radionuclides from the operations -

of the Cooper Nuclear Station. This objective requires measurements of low levels of radioactivity equal to or lower than pre-determined limits of detection. In addition the source of the environmental radiation must be es-tablished. Sources of environmental radiation include:

(1) Natural background radiation from cosmic rays (Be-7).

(2) Terrestrial, primordial radionuclides from the environment (K-40, Ra-226. Th-228).

l (3) Fallout from atmospheric nuclear tests such as the September 1977 detonation by the Peoples' Republic of China and the atmospheric weapons test of October 16,1980 (fission products and fusion products).

(4) Releases from nuclear power plants such as CNS (fission products and neutron activation products).

(5) Fallout from the Chernobyl Nuclear Reactor Accident.

l Radiation levels measured in the vicinity of an operating power station are compared with preoperational measurements at the same locations to distinguish power plant effects from other sources. Also, results of the '

monitoring program are related to events known to cause elevated levels of radiation in the environment, e.g., atmospheric nuclear detonations or ab-normal plant releases. .

11 Atmosnheric Nuclear Tests Three atmospheric nuclear detonations in the People's Republic of China influenced program results significantly in late 1976 and in 1977. Two of these detonations occurred in late 1976 (September 26 and November 17) and one in late 1977 (September 17). As a consequence of these tests ele-vated activities of gross beta in air particulate filters and I-131 in milk were

! observed throughout most of the United States.

No atmospheric nuclear tests have been conducted since 1977, thus no short-lived fission products were detected in air particulate samples. Also no I-131 was detected from radiogases from any sources. j On April 26,1986 the fire and explosion of Chernobyl Reactor No. 4 in ;

the Soviet Union resulted in the release of fission products to the atmo-sphere and worldwide fallout. Following the explosion, elevated levels of gross beta activities in air particulates and I-131 in charcoal filters and milk -

samples were measured. Additionally, in 1986, Cs-137 and the short-lived isotopes I-131. Ru-106, and Cs-134 were detected in broadleaf vegetation. '

Similar results occurred in other areas of the United States and the entire l Northern Hemisphere.

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V. RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM TABLES

, Presented in Table 3 are the radiological environmental monitoring l program summaries (REMPS) generated from the reports of analyses per-formed during 1993 for the NPPD sampling and analyses program. The REMPS tables conform to the requirements of Table 1 in Regulatory Guide 4.8 (Reference 6).

The average activity level for all samples collected for the year for each sample type are summarized in this table. The mean, range and fraction of detections to total samples assayed are presented. The station location and station number with the highest annual mean is also tabulated. If a control station is specified the comparable results of the control are listed.

From the REMPS table it is possible to determine the total number of each type of sample analyzed and the average activity of all samples from all stations of each nuclide. If there were no positive detections the maximum of the lowest levels of detection is listed. The station having the highest level of activity is specified. From this data it is possible to determine any ,

high levels of activity and the source. The dose impact on the population can '

thus be evaluated. ,

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i TABLE 3 RADIOLOGICAL ENVIRONMENTAL .

MONITORING PROGRAM SUMMARIES' (REMP) 1993 l

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RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM

SUMMARY

COMPILATION - ANNUAL

SUMMARY

- NEBRASKA PUBLIC POWER DISTRICT PAT 11WAY - AIRBORNE COOPER NUCLEAR STATION SAMPLE - CilARCOAL FILTERS CONTROL -

UNITS - PCI/CU.M.

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1

RADIOLOGICAL ENVIRONMENTAL MONTIURING PROGRAM

SUMMARY

PAT 11WAY - WATERBORNE COMPILATION - ANNUAL

SUMMARY

NEBRASKA PUBLIC POWER DISTRICT SAMPLE - WATER - GROUND CONTROL- COOPER NUCLEAR STA110N UNITS - PCI/ LITER ANALYSIS NO LIMIT OF ALL INDICATOR SAMPLES LOCATION Willi IIIGilEST 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 FRAC'llON STATION DESCRil'110N FRAC'llON GR-A 8 4.0 3.0 3.0 0 01/20/93-10/19/93 3.0- 3.0 47 001/004 3.0- 3.0 001/008 STATION 47 - 25.8 Mt.154 DEG. IND.

GR-B 8 1.8 9.5 10 0 01/20/93-10/19/93 8.2- 12 11 004/004 8.4- 12 008/008 STAT 10N 11 - 0.15 MI. 225 DEG. IND.

1-131 8 9.00 LT 20.00 0 01/20/93-10/19/93 2

LT 4.00- LT 20.00 000/008 CS- 137 8 9.00 LT 4.00 0 01/20/93-10/19/93 y LT 3.00- LT 4.00 w 000/008 11- 3 8 140. 140. 140. O 01/20/93-10/19/93 14 0.- 140. 47 001/004-140.- 14 0.

001/008 STA'110N 47 - 25.8 MI.154 DEG. IND.

(

i t

RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM

SUMMARY

COMPILATION - ANNUAL

SUMMARY

NEBRASKA PUBIJC POWER DISTRICT PATIIWAY - WATERBORNE COOPER NUCLEAR STAT 10N

' SAMPLE - WATER - RIVER CONTROL - STAT 10N 12 - 0.1 MI. 360 DEG. CON.

UNITS - PCI/LTIER ANALYSIS NO LIMIT OF ALL INDICATOR SAMPLES LOCAT10N Willi HIGilEST MEAN CONTROL LOCAT10N NON- REPORTING PERIOD ROUTINE DETECT 10N MEAN X E.00 MEAN X E-00 MEAN X E.00 i MEAN X E-00 RANGE STAT 10N FRAC 110N RANGE RANGE FRAC 110N STATION DESCRIIrrION FRAC 110N GR-A DIS 22 4.0 4.0 4.5 4.5 0 01/20/93-12/07/93 0.86- 5.0 12 004/011 3.3- 5.0 3.3- 5.0 !

007/022 STAT 10N 12 - 0.10 MI. 360 DEG. CON. 004/011 GR-A SUS 22 4.0 3.9 4.9 4.9 0 01/20/93-12/07/93 0.44- 13.0 12 005/011 1.3- 11 1.3- 11 013/022 STATION 12 - 0.10 Mt. 360 DEG. CON. 005/011 GR B DIS 22 1.8 13.0 13.0 13.0 0 01/20/93-12/07/93 4.9- 23 12 011/011 8.3- 23 8.3- 23 022/022 STATION 12 - 0.10 MI. 360 DEG. CON. 011/011 GR-B SUS 22 1.8 15 20.0 11.0 0 01/20/93-12/07/93 1.4 - 95 28 010/011 1.8- 95.0 1.4 . 54.0 ro 021/022 STATION 28 - 1.8 MI.150 DEG. IND. 011/011 SR-89 22 1.1 LT 2.0 LT 1.0 0 01/20/93-12/07/93 ;

LT 0.5- LT 2.0 LT 0.600- LT 1.0 000/022 000/0II t

SR-90 22 0.930 LT 0.900 0 01/20/93-12/07/93 LT 0.400 LT 0.900 j i 000/022 K-4 0 22 140.0 66.0 68.4 61.3 0 01/20/93-12/07/93 61.3- 70.8 28 002/011 66.0- 70.8 61.3- 61.3 003/022 STAT 10N 28- 1.8 MI.150 DEG. IND. 001/012 ;

1

, 1-131 22 9.00 LT 20.0 LT 10.0 0 01/20/93-12/07/93 LT 4.0- LT 20.0 LT 5.0- LT 10.0 000/022 000/011 CS-137 22 9.00 LT 5.0 LT 5.0 0 01/20/93-12/07/93 LT 3.0- LT 5.0 LT 3.0- LT 5.0

000/022 000/012 H-3 8 140. LT 100. 0 01/20/93-12/07/93 LT 100. LT100 000/008

_ -- c i-- _ _ _ _ _ _ _ _ _ _ ___i________._______________.__

RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM

SUMMARY

PA111WAY - GAMMA EXPOSURE COMPILA'110N - ANNUAL

SUMMARY

NEBRASKA PUBLIC POWER DISTRICT SAMPLE - ENVIRONMENTAL 'IT.D CONTROL - COOPER NUCLEAR STK110N UNTIS - mR ANALYSIS NO LIMIT OF ALL INDICATOR SAMPLES LOCATION WIT 11 IIIGHEST MEAN . CONTROL IDCK110N NON- REIVR11NG PERIOD DETECTION MEAN X E-00 MEAN X E-00 MEAN X E-00 ROUTINE MEAN X E RANGE STATION FRACTION RANGE RANCE FRACI1ON STAT 10N DESCRil'110N FRAC 110N TLD 127 2mR Total 67.2 mR 92.9 mR 77.8 0 01/15/93-01/11/94 Exposure / year 53.3- 92.9 01 004/004 44 004/004 127/127 STA110N 01 - 0.1 MI. 225 DEG. IND. STA110N 44 - 10.25 MI. 270 DEG. CON.

23.2 mR 19.4 mR Average 16.9 mR 13.9- 31.8 14.5- 26.9 0 01/15/93-01/11/94-1 Exposure / 11.8- 32.0 01 004/004 44 004/004 quarter 032/032 STATION 01 - 0.1 Mt. 225 DEG. IND. STAT 10N 44 - 10.25 MI. 270 DEG. CON.

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VI. DISCUSSION, IMPACT ON THE ENVIRONMENT GRAPHS OF RESULTS FROM 1977-- 1993 .

AND STATISTICAL TABLES FOR ]

l l

EACH QUARTER of i

l e

28

A and B. AIR PARTICULATE SAMPLES - GROSS BETA AND GROSS ALPHA (See Tables A A-4. B B-4)

STATIONS 01 to 10 Air particulates were. collected on membrane filters at ten locations (01-10). The filters were changed weekly and analyzed for gross beta and gross alpha activities. -Quarterly composites are analyzed for gamma emitting iso-topes.

The average gross beta activity of all stations for each quarter of 1992 and 1993 is summarized below:

1992 First Quarter - 0.024 pC1/Cu. M.

Second Quarter 0.019' pC1/Cu. M.

Third Quarter. 0.020 pCi/Cu. M.

Fourth Quarter 0.027 pC1/Cu. M.

Average 1992 0.023 pCi/Cu. M.

I 1993 First Quarter 0.030 . pCi/Cu. M.

Second Quarter 0.015 pC1/Cu. M.-

, Third Quarter 0.020 pC1/Cu. M.

Fourth Quarter 0.029 pCi/Cu. M.

Average 1993 0.024 pC1/Cu. M.

The level of beta activity was at normal environmental levels in 1993 showing the natural seasonal variations. There was a slight increase in the level of gross beta activity during the first quarter; there was a slight decrease from the second quarter of 1992:-the third quarter was the same:

the fourth quarter was slightly higher as shown in Table A-4. The increase j and decline in activity often occurs and is attributed to natural phenomena. 1 The gross alpha activity continued low and close to the limits of detec- 1 tion. Gross alpha activity is probably due to the alpha emitters found in soil and particulates drawn into the filters.

No effect attributable to the Cooper Nuclear Station was observed-in the results of monitoring air particulates.

O I

29

l l A and B. A[R PARTICULATE SA.MPLES - GROSS BETA AND GROSS ALPHA i (See Tables A A-4. B B-4) ,

STATIONS 01 to 10 ,

l Figure A1, B1 shows the gross beta, gross alpha and Ce-144 activity in the environs of CNS. The results for 1986 through 1993 are on the second page of Figure A-1. B-1. The gross beta activity in 1993 was similar to previ-ous years in which there were no nuclear atmospheric weapons tests or nu-clear accidents. The gross alpha activity remained low and near the normal detection level. Cesium-144 was below the level of detection.

l Figure A-2 shows the gross beta activity in air samples through April l

1989 at Jefferson City Missouri as reported by the Environmental Radiation l Monitoring System (ERAMS) of the US Environmental Protection Agency.

No more recent data was available. This data was taken from Environmental Radiation Data distributed by the Eastern Environmental Radiation Facility.

Montgomery. Alabama. The measurements by ERAMS were made after a waiting period which may explain the somewhat lower results because of decay of the isotopes having a shorter half-life. Measurements of Cc-144 were no longer reported because the activity has approached the limit of de-tection by the analytical techniques now used.

e O

30 1

FIGURE Al, B1 AIR PAlmCUIEI'ES - CNS ALPIIA AND BETA MON'HILY AVERAGE - ALL LOCATIONS CE-144 QUARTERLY AVERAGE - ALL LOCA'IlONS I

O.1 l } f$

1 gr i *

[ z N V Y% wY U k O.01 S &

A. .:. 1. -

. - bM vv

.. m O.001 0.0001 1976 1977 1978 1979 1980 1981 1982 1983 1984 1985

- q. - Gr-B O Gr-A A Cc-144 4---- Ce-144 AVE LLD

FIGURE Al, B1 AIR PARTICUIEIES - CNS ALPIIA AND BETA MOfflTILY AVERAGE - ALL IDCAT10NS CE-144 QUARIERLY AVERAGE - ALL LOCATIONS 1

4>

0.1 l[

lI WW k, 4 %l

& **\ Y /y' so/4 %,

E 0.01 n 2 .. .==.-

y,=. -

=

0.001 0.0001 1986 1987 1988 1989 1990 1991 1992 1993

- -+ - Gr-B O Gr-A = Cc-144 0 Cc-144 Ave LLD

FIGURE A-2 AIR PARIlCUIATES BETA MONT11LY AVERAGE - JEFFERSON CITY MISSOURI ERAMS EPA 1

g l 5 e

0.1 oln\ir k

[Y l

/

I 'z 0.01 4

{^$ S )

(

O.001 _

O.0001 1976 1977 1978 1979 1980 1981 1982 1983 1984 1985

--+ - G. BETA ERAMS O CE-144 EML

___ -- - - - , - , - - - - - - , - - , - - - - , --,,.,----,,--,,,--,------,---,---,------,,---------,r-----------,,----,,----,----,-,-------.,--,,,-----,-,---,-------,-------------,,,-,----------------------------,------,--------,----,---,,-----------r---

1 FIGURE A-2 AIR PARTICULATES BETA MONTilLY AVERAGE - JEFFERSON CrlY MISSOURI ERAMS EPA 1

0.1 -

{

\

l I \ f%

a g

t+t / f*++++/ % j%g / bt su e

\ 'a wa m

A i

a es s._' L' v L O.001 O.0001 1985 1986 1987 1988 1989

- 4. - GROSS BETA ERAMS

= * . . , ,

s . . a s .

TABLE A-1 WEEKLY COLLECTIONS FIRST QUARTER 1993 NEBRASKA PUBLIC POWER DISTRICT COOPER NUCLEAR "fATION EXPOSURE PATHWAY - AIRBORNE AIR PARTICULATE FILTERS pCi/Cu. M.

SAMPLE STATION MONTHLY

SUMMARY

1.6 1 0.2 E-02 05 1.5 1 0.2 E-02 *

1.5 1 0.2 E-02 06 1.6 1 0.6 E-02 *

1.6 i 0.6 E-02 07 2.3 1 0.3 E-02 3.0 1 0.4 E-02 2.5 1 0.2 E-02 2.5 i 0.4 E-02 u 3.1 1 0.7 E-02 2.1 1 1.0 E-02

'4 08 1.2 1 0.4 E-02 2.2 i 0.4 E-02 09 1.7 i 0.6 E-02 2.1 i 0.3 E-02 2.1 i 0.6 E-02 1.9 1 0.5 E-02 10 1.5 1 0.7 E-02 2.3 0.4 E-02 1.8 i 0.1 E-02 1.8 i 0.6 E-02 AVERAGE 01-10 1.6 1 0.5 E-02 2.3 1 0.4 E-02 2.2 1 0.6 E-02 2.0 1 0.6 E-02 ALL STATIONS i and s Grand x and s

Sample not collected -- Flood Missouri River

TABLE A-4 WEEKLY COLLECTIONS FOURTH QUARTER 1993 NEBRASKA PUBLIC POWER DISTRICT COOPER NUCLEAR STATION EXPOSURE PATH h. - AIRBORNE AIR PARTICULATE FILTERS pCi/Cu. M.

MONTHLY

SUMMARY

MONTHLY

SUMMARY

FOURTH QUARTER

SUMMARY

SAMPLE STATION MONTHLY

SUMMARY

NUMBER 09/28-11/02 11/02-11/30 11/30-12/28 09/28-12/28 NUCLIDE 2.9 i 0.3 E-02 3.2 1 0.7 E-02 2.9 i 0.6 E-02 GROSS BETA 01 2.7 i 0.6 E-02 2.4 1 0.5 E-02 2.8 1 0.5 E-02 3.3 i 0.7 E-02 2.8 1 0.7 E-02 02

2. 6 i 0. 4 E-02 2.9 1 0.5 E-02 2.8 i 0.5 E-02 03

4.0 1 0.3 E-02 4.6 i 0.7 E-02 4.4 1 0.6 E-02 04 05

2.8 1 0.3 E-02 3.2 i 0.4 E-02 3.0 1 0.4 E-02 06 07 3.2 i 1.5 E-02 1.6 1 0.3 E-02 2.6 i 0.3 E-02 2.6 i 1.3 E-02 08 3. 9 i 1. 9 E-02 2.3 1 0.2 E-02 2.8 i 0.8 E-02 3.1 i 1.3 E-02 g

09 2.4 1 0.7 E-02 2. 6 1 0.3 E-02 2.7 1 0.7 E-02 2.6 i 0.6 E-02 10 2.7 1 0.6 E-02 3.0 i 0.3 E-02 3.0 1 0.8 E-02 2.9 i 0.6 E-02 01-10 2.9 i 1.1 E-02 2.7 i 0.6 E-02 3.2 1 0.8 E-02 2.9 i O.9 E-02 AVERAGE ALL STATIONS I and s Grand I and s

Samples not collected -- Flood Missouri River.

+ = . . . .

TABLE B-1 WEEKLY COLLECTIONS FIRST QUARTER 1993 i NEBRASKA PUBLIC POWER DISTEICT l

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

SAMPLE STATION MONTHLY

SUMMARY

MONTHLY

SUMMARY

MONTHLY

SUMMARY

FIRST QUARTER

SUMMARY

NUCLTDE NUMBFR 12/29-02/02 02/02-03/02 03/02-03/30 12/29-03/30 GROSS ALPHA 01 3.6 i 1.7 E-03 2.8 i 0.6 E-0 3 2.0 1 0.1 E-03 2. 9 i 1.2 E-0 3 02 3. 3 i 1. 3 E-0 3 3.1 1 0.4 E-03 1.9 i 0.6 E-03 2.8 i 1.1 E-03 03 3.5 1 2.0 E-03 3.6 i 1.1 E-03 1.8 1 0.5 E-03 3.0 i 1.6 E-03 04 3.6 i 2.5 E-03 2.9 i 0.7 E-03 2.1 1 0.6 E-03 2.9 i 1.7 E-03 05 2.5 i 1.2 E-03 2. 9 1 0.6 E-0 3 1.8 1 0.5 E-03 2.4 1 0.9 E-03 06 2.5 i 1.4 E-03 3.8 1 0.9 E-0 3 1.8 1 0.4 E-03 2.7 i 1.2 E-03 to 07 3.5 1 2.2 E-03 3.2 i 1.4 E-03 1.7 i 0.5 E-03 2.9 i 1.7 E-03 e

09 3.1 1 2.2 E-03 2.6 1 0.5 E-03 2.2 1 0.3 E-03 2.7 i 1.4 E-03 09 2.9 i 1.1 E-03 3.3 i 1.3 E-03 1.8 1 0.5 E-03 2.7 i 1.2 E-03 10 4.4 i 4.4 E-03 3.0 1 0.6 E-03 1.8 i 0.4 E-03 3.2 i 2.8 E-03 AVERAGE 01-10 3.3 1 2.1 E-03 3.1 1 0.8 E-03 1.9 i 0.4 E-03 2. 8 i 1.5 E-0 3 ALL STATIONS i and s Grand x and s

TABLE B-2 WEEKLY COLLECTIONS SECOND QUARTER 1992 NEBRASKA PUBLIC POWER DISTRICT COOPER NUCLEAR STATION EXPOSURE PATHWAY - AIRBORNE AIR PARTICULATE FILTERS pC1/Cu M.

SAMPLE STATION MONTHLY

SUMMARY

MONTHLY

SUMMARY

MONTHLY

SUMMARY

SELOND OUARTER

SUMMARY

NUCLIDE NUMBER 03/30-04/28 04/28-06/01 06/01-06/29 03/30-06/29 GROSS ALPHA 01 2.2 1 0.5 E-03 1.8 i 0.5 E-03 2.1 1 0.1 E-03 2.0 1 0.4 E-03 02 2.2 1 0.9 E-03 2.0 1 0.3 E ^1 1.0 1 0.5 E-03 2.0 1 0.6 E-03 :

l 03 3.4 1 2.4 E-03 2.1 1 0.2 E-s 2.2 1 0.4 E-03 2.5 i 1.4 E-03 04 2.8 i 1.1 E-03 1.8 i O.3 E-03 3.5 i 1.2 E-03 2.6 1 1.1 E-03 05 2.7 i 0.8 E-03 1.8 1 0.% E-03 2.3 i 0.6 E-03 2.2 i 0.7 E-03 06 2.1 1 0.8 E-03 1.8 i 0.2 E-03 1.8 i 0.6 E-03 1.9 i 0.5 E-03

= 07 3.1 1 0.8 E-03 ** 2.5 i 0.3 E-03 2.8 i 0.6 E-03 o

08 2.2 i 0.9 E-03 2.0 1 0.8 E-03 2.3 1 0.6 E-03 2.1 1 0.7 E-03 09 2. 3 1 0.9 E-0 3 1.9 i 0.3 E-03 2.1 1 0.2 E-03 2.1 1 0.5 E-03 10 1.9 1 1.2 E-03 2.4 1 1.0 E-03 2.0 1 1.3 E-03 2.1 1 0.9 E-03 AVERAGE 01-10 2.5 i 1.1 E-03 2.0 1 0.5 E-03 2.2 1 0.7 E-03 2.2 1 0.8 E-03 ALL STATIONS i and s Grand ~ and s

- Sample not collected - pump out of service.

TABLE B-3 WEEKLY COLLECTIONS - THIRD OUARTER 1993 NEBRASKA PUBLIC POWER DISTRICT COOPER NUCLEAR STATION EXPOSURE PATHWAY - AIRBORNE AIR PARTICULATE FILTERS pCi/Cu. M.

SAMPLE STATION MONTHLY

SUMMARY

. MONTHLY

SUMMARY

MONTHLY

SUMMARY

THIRD QUARTER

SUMMARY

NUCLIDE NUMBER 06/29-08/03 08/03-08/31 08/31-09/28 06/29-09/28 GROSS ALPHA 01 2.0 1 0.0 E-03 2.1 1 0.6 E-03 2.2 i 1.2 E-03 2.1 1 0.8 E-03 02 2.3 1 0.6 E-03 1.9 i 0.6 E-03 2.1 i 1.2 E-03 2.1 1 0.8 E-03

2.8 1 1.4 E-03 03 2.8 1.4 E-03 04 2.4 1 0.8 E-03 *

2.4 1 0.8 E-03 05 2.0 1 0.1 E-03 *

2.0 1 0.1 E-03 06 2.2 1 0.3 E-03 *

2.2 1 0.3 E-03 07 2.5 i 0.7 E-03 2.5 1 0.6 E-03 3.5 i 0.5 E-03 2.8 1 0.8 E-03

"" 08 2.0 1 0.2 E-03 1.8 i 0.5 E-03 2.5 1 0.6 E-03 2.1 i 0.5 E-03 09 2.5 1 0.6 E-03 1.9 i 0.5 E-03 2.4 i 0.5 E-03 2.3 i 0.5 E-03 10 2.0 1 0.6 E-03 2.4 i 1.1 E-03 2.4 i 1.3 E-03 2.2 1 0.9 E-03 AVERAGE 01-10 2.2 1 0.6 E-03 2.1 i 0.7 E-03 2.5 i 1.0 E-03 2.3 i 0.7 E-03 ALL STATIONS i and s Grand x and s

Sample not collected -- Flood Missouri River

TABLE B-4 WEEKLY' COLLECTIONS FOURTH QUARTER 1993 NEBRASKA PUBLIC POWER DISTRICT COOPER NUCLEAR STATION i

EXPOSURE PATHWAY - AIRBORNE AIR PARTICULATE FILTERS t

pCi/Cu. M. ;

i SAMPLE STATION MONTHLY SUletA.RY MONTHLY SUletARY MONTHLY

SUMMARY

FOURTH QUARTER SUletARY NUCLIDE NUMBER 09/28-11/02 11/02-11/30 11/30-12/28 09/28-12/28 l GROSS ALPHA 01 2.5 1 0.6 E-03 2.5 i 0.3 E-03 2.9 1 1.5 E-03 2.7 i 0.9 E-03 02 2.8 i 0.7 E-03 2.4 1 0.6 E-03 2.7 i 1.1 E-03 2. 6 i O. 8 E-03 03

2.0 1 0.0 E-03 2.8 i 0.9 E-03 2.5 1 0.8 E-03 04

2.5 1 0.6 E-03 3. 6 i 1. 9 E-03 3.1 i 1.5 E-03 05 06

1.9 i 0.2 E-03 .3.1 1 1.0 E-03 2.5 i 1.0 E-03 07 2.8 i 0.6 E-03 1.9 i 0.2 E-03 1.7 i 1.4 E-03 2.3 1 0.7 E-03 08 4.4 i 1.7 E-03 2.0 i O.5 E-03 2.5 i 0.8 E-03 3.1 i 1.6 E-03 3

" 09 2.8 i 1.1 E-03 1.9 i 0.2 E-03 2.6 i.1.5 E-03 2.4 i 1.1 E-03 10 3.3 1 0.6 E-03 3.0 1 0.2 E-03: 2.5 i 0.5 E-03 2.9 i 0.6 E-03 AVERAGE 01-10 3.1 1 1.1 E-03 2.2 1 0.5 E-03 -2.8 i 1.1 E-03 2.7 1 1.0 E-03 1 ALL STATIONS 1

l I and s Grand i and s

Samples not collected - Flood Missouri River.

I t

e t

y 8 8 6 s , ,

+. , -- . - r-,, - , - -, ,

l C AIR RADIOIODINE - CHARCOAL FILTERS ISee Tables C-1 through C-41 STATIONS 01 TO 10 i

Charcoal filters used-in series with air particulate filters were collected I weekly during 1993 at stations 01 through 10 and monitored for radiciodine.

i Tables C-1 through C-4 show the average monthly.and quarterly results for each station and the average of all 10 stations. Airborne I-131 levels were below the limits of detection for all of 1993.

Figure C-1 plots the results of I-131 as monitored in charcoal filters and summarized monthly in 1993 compared with previous years. Results for 1993 were below the normal limits of detection indicating no atmospheric effect from the operations of CNS.

l i

6 43 i

FIGURE C-1 AIRDORNE I-131 MONDILY AVERAGE - ALL LOCA'IlONS 1

0.1 1

, u..

l

%. /. b. ..

V. .. . b....l k.. ....

..fi. d.%.

d t h 0.01 f 0.001 1977 1978 1979 1980 1981 1982 1983 1984 1985

- -4. - AIRBORNE l-131 0 Average 11D

FIGURE C-1 AIRDORNE I-131 MONrilLY AVERAGE - ALL LOCATIONS I

\\

O.1 llg ji -&i t --A A-- ,--- 4--- - , 4 - 2a --- L w,w n a

2 n vv vn.s- V 41 r_m v .2 -

& A \4 0.01 0.001 1986 1987 1988 1989 1990 1991 1992 1993

- -4. - AIRBORNE l-131 0 Average LLD

g , . , - - . - - - - - , . - - - - - - - - _ . - - - . - - - - , - - , - - - - - . - - - ------.-----.--,---v - - - - - - - - - - - - - - - - - - . - - - - - -

TABLE C-1 WEEKLY COLLECTIONS FIRST QUARTER 1993 NEBRASKA PUBLIC POWER DISTRICT COOPER NUCLEAR STATION EXPCSURE PATHWAY - AIRBORNE CHARCOAL FILTEPS pCi/Cu. M.

MONTHLY

SUMMARY

MONTHLY

SUMMARY

OUARTERLY

SUMMARY

DET./

SAMPLE STATION MONTHLY

SUMMARY

12/29-02/02 02/02-03/02 03/02-03/30 12/29-03/30 TOTAL RANGE NUCLIDE NUMBER E-02 L.T. 3. E-02 L.T. 4. E-02 L.T. 5. E-02 0/13 (L.T . 2. -L.T . 5. ) E-02 IODINE-131 01 L.T. 5.

02 L.T. 5 E-02 L.T. 3. E-02 L.T. 3. E-02 L.T. 5 E-02 0/13 ( L.T. 2. -L.T . S . ) E-0 2 03 L.T. 4. E-02 L.T. 4. E-02 L.T. 3. E-02 L.T. 4. E-02 0/13 (L.T.2.-L.T.4.)E-02 04 L.T. 4. E-02 L.T. 3. E-02 L.T. 3. E-02 L.T. 4. E-02 0/13 (L.T.2.-L.T.4.)E-02 05 L.T. 3. E-02 L.T. 2. E-02 L.T. 2. E-02 L.T. 3. E-02 0/13 (L.T.1.-L.T.3.)E-02 E-02 E-02 L.T. 2. E-02 0/13 (L.T.2.-L.T.2.)E-02

$ 06 L.T. 2. E-02 L.T. 2. L.T. 2.

07 L.T. 2. E-02 L.T. 2. E-02 L.T. 2. E-02 L.T. 2. E-02 0/13 (L.T.2.-L.T.2.)E-02 08 L.T. 3. E-02 L.T. 2. E-02 L.T. 3. E-02 L.T. 3. E-02 0/13 (L.T.2.-L.T.3.)E-02 09 F.T. 2. E-02 L.T. 2. E-02 L.T. 2. E-02 L.T. 2. E-02 0/13 (L.T.2.-L.T.2.)E-02 10 L .1. 3. E-02 L.T. 2. E-02 L.T. 2. E-02 L.T. 3. E-02 0/13 (L.T.l.-L.T.3.)E-02 01-10 L.T. 5. E-02 L.T. 4. E-02 L.T. 4. E-02 L.T. 5. E-02 --

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

RANGE (L.T.1. -L.T. 5. ) E-02 (L.T.1.-L.T.4.)E-02 (L.T .1. -L.T. 4. ) E-02 (L.T.1. -L.T. 5. ) E-02 --

(L.T.1.-L.T.5.)E-02

TABLE C-2 WEEKLY COLLECTIONS SECOND QUARTER 1993 NEBRASKA PUBLIC POWER DISTRICT COOPER NUCLEAR STATION EXPOSURE PATHWAY - AIRBORNE CHARCOAL FILTERS pC1/Cu. M.

SAMPLE STATION MONTHLY

SUMMARY

MONTHLY

SUMMARY

MONTHLY

SUMMARY

QUARTERLY

SUMMARY

DET./

NUCLIDE NUMRER 03/30-04/28 04/20-06/01 06/01-06/29 03/30-06/29 TOTAL RANGE IODINE-131 01 L.T. 5. E-02 L.T. 4. E-02 L.T. 5. E-02 L.T. 5. E-02 0/13 (L. T .2.-L . T . 5. ) E-02 02 L.T. 5 E-02 L.T. 4. E-02 L.T. 5. E-02 L.T. 5 E-02 0/13 (L.T.2.-L.i.5.)E-02 03 L.T. 5. E-02 L.T. 4. E-02 L.T. 5. E-02 L.T. 5. E-02 0/13 (L.T.1.-L.T.5.)E-02 04 L.T. 5. E-02 L.T. 4. E-02 L.T. 5. E-02 L.T. 5. E-02 O/13 (L.T.I.-L.T.5.)E-02 05 L.T. 3. E-02 L.T. 2. E-02 L.T. 3. E-02 L.T. 3. E-02 0/13 (L.T.I.-L.T.3.)E-02 06 L.T. 4. E-02 L.T. 5. E-02 L.T. 3. E-02 L.T. 5. E-02 0/13 (L.T.2.-L.T.5.lE-02 3

N 07 L.T. 4. E-02 ** L.T. 3. E-02 L.T. 4. E-02 0/13 (L.T.2.-L.T.4.)E-02 08 L.T. 4. E-02 L.T. 5. E-02 L.T. 3. E-02 L.T. 5. E-02 0/13 (L.T.2.-L.T.5.)E-02 09 L.T. 4. E-02 L.T. 5. E-02 L.T. 3. E-02 L.T. 5. E-02 0/13 (L.T.2.-L.T.S.)E-02 10 L.T. 3. E-02 L.T. 5. E-02 L.T. 2. E-02 L.T. 5. E-02 0/13 (L.T.I.-L.T.5.lE-02 01-10 L.T. 5. E-02 L.T. 5. E-02 L.T. 5. E-02 L.T. 5. E-02 --

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

RANGE (L.T.I.-L.T.S.)E-02 (L.T.1.-L.T.5.)E-02 ( L.T .1. - L . T . 5. ) E-0 2 (L.T.1.-L.T.5.)E-02 --

(L.T.I.-L.T.5.)E-02

- Sample not collected - pump out of service.

TABLE C-3 WEEKLY COLLECTIONS THIRD QUARTER 1992 NEBRASKA PUBLIC POWER DISTRICT COOPER NUCLEAR STATION EXPOSURE PATHWAY - AIRBORNE CHARCOAL FILTERS pCi/Cu. M.

SAMPLE STATION MONTHLY

SUMMARY

MONTHLY

SUMMARY

MONTHLY

SUMMARY

QUARTERLY

SUMMARY

DET./

NUCL1DE NUMBER 06/29-08/03 08/03-08/31 08/31-09/28 06/29-09/28 TOTAL RANGE IODINE-131 01 L.T. 3. E-02 L.T. 4. E-02 L.T. 5. E-02 L.T. 5. E-02 0/13 (L.T.1.-L.T.5.)E-02 02 L.T. 3. E-02 L.T. 3. E-02 L.T. 8. E-02 L.T. 8 E-02 0/11 (L.T.I.-L.T.8.)E-02 03 L.T. 2. E-02 *

L.T. 2. E-02 0/1 (L.T.2.-L.T 2.)E-02 04 L.T. 3. E-02 *

L.T. 3. E-02 0/3 (L.T . 2. -L.T . 3. ) E-02 05 L.T. 3. E-02 *

L.T. 3. E-02 0/3 (L.T. I .-L.T . 3. ) E-02 06 L.T. 2. E-02 *

L.T. 2. E-02 0/3 (L.T.2.-L.T 2.)E-02 b

00 07 L.T. 4. E-02 L.T. 3. E-02 L.T. 5. E-02 L.T. 5. E-02 0/13 (L.T.I.-L.T.S.)E-02 08 L.T. 4. E-02 L.T. 3. E-02 L.T. 3. E-02 L.T. 4. E-02 0/13 (L.T 1.-L.T.4.)E-02 09 L.T. 4. E-02 L.T. 3. E-02 L.T. 3. E-02 L.T. 4. E-02 0/13 (L.T.1.-L.T.4.)E-02 10 L.T. 2. E-02 L.T. 3. E-02 L.T. 3. E-02 L.T. 3. E-02 0/13 (L.T.I.-L.T.3.)E-02 01-10 L.T. 4. E-02 L.T. 4. E-02 L.T. 8. E-02 L.T. 8. E-02 --

DET./ TOTAL 0/38 0/24 0/24 0/86 --

RANGE (L.T.1.-L.T.4.lE-02 (L.T.1.-L.T.4.)E-02 (L.T.1.-L.T.8.)E-02 (L.T.1.-L.T.8.)E-02 --

(L.T.1.-L.T.8.)E-02

Sample not collected -- Flood Missouri River

TABLE C-4 WEEKLY COLLECTIONS FOURTH QUARTER 1993 NEBRASKA PUBLIC POWER DISTRICT COOPER NUCLEAR STATION EXPOSURE PATHWAY - AIRBORNE CHARCOAL FILTERS pCi/Cu. M.

SAMPLE STATION MONTHLY

SUMMARY

MONTHLY

SUMMARY

MONTHLY

SUMMARY

QUARTERLY

SUMMARY

DET./

NUCLIDE HUMBER 09/28-11/02 11/02-11/30 11/30-12/28 09/28-12/28 TOTAL RANGE IODINE-131 01 L.T. 3. E-02 L.T. 4. E-02 L.T. 6. E-02 L.T. 6. E-02 0/13 (L.T.1.-L.T.6.)E-02 02 L.T. 4 E-02 L.T. 3. E-02 L.T. 6. E-02 L.T. 6 E-02 0/13 (L.T.1. - L.T. 6. ) E-02 03

L.T. 4. E-02 L.T. 5. E-02 L.T. 5. E-02 0/6 (L.T. 3. -L.T. 5. ) E-02 04

L.T. 3. E-02 L.T. 5. E-02 L.T. 5. E-02 0/7 (L.T.2.-L.T.S.)E-02 to 05 * * *

0/0

06

L.T. 4. E-02 L.T. 4. E-02 L.T. 4. E-02 0/7 (L.T.2. -L.T. 4. ) E-02 07 L.T. 4. E-02 L.T. 4. E-02 L.T. 4. E-02 L.T. 4. E-02 0/9 (L.T.1.-L.T.4.)E-02 08 L.T. 4. E-02 L.T. 5. E-02 L.T. 4. E-02 L.T. 5. E-02 0/13 (L .T .1. -L.T . 5. ) E-02 09 L.T. 4. E-02 L.T. 5. E-02 L.T. 4. E-02 L.T. 5. E-02 0/13 (L.T 1.-L.T.5.)E-02 10 L.T. 5. E-02 L.T. 4. E-02 L.T. 4. E-02 L.T. 5. E-02 0/13 (L.T.1.-L.T.5.)E-02 01-10 L.T. 5. 's-02 L.T. 5. E-02 L.T. 6. E-02 L.T. 6. E-02 0/94 DET./ TOTAL 0/30 0/31 0/33 0/94 RANGE (L.T.1.-L.T.5.)E-02 (L.T. l . -L. T. 5. ) E-02 (L.T.2.-L.T.6.)E-02 (L.T.1.-L.T.6.)E-02 --

(L.T.1. -L.T. 6. ) E-02

Samples not collected -- Flood Missouri River.

D. COMPOSITES OF AIR PARTICULATE FILTERS - GAMMA (See Tables D-1 and D-21 ,

STATIONS 01 TO 10 Air Particulate Filters, which were collected weekly, were composited for each station for a quarterly clamma spectral analysis during the four quar-ters of 1993.

Beryllium-7, a_ naturally occurring cosmogenic nuclide, was detected in 39 of 39 samples at a level of 0.12 pC1 per cubic meter which is similar to the levels of past years. Potassium-40, also a naturally occurring nuclide, was detected in four of 39 samples at a level near the normal level of detection.

Figure D-1 graphs the gross-beta, gross alpha and Ce-144 activity as measured on air particulate filters collected weekly at 'CNS. (This is .the same as Figure A-1 B-1). The plot illustrates that there were no detections of Ce-144 above the normal level of detection as measured by the quarterly gamma scan of samples from CNS. ,

Figure D-2 shows that measurements of Ce-144 are no longer reported' by the Environmental Measurements Laboratory of the US Department of l

Energy because the artificial nuclides such as Ce-144, have reached the lim-

its of detection by the analytical techniques now used.

4 c.

7 l

i e

4 7

50 ,

FIGURE D-1 AIR PAlmCULATFS - CNS ALPIIA AND BETA MONTIILY AVERAGE - ALL LOCATIONS CE-144 QUARTERIX AVERAGE - ALL LOCAllONS 1

k 1

w) q l! UN ,

/

= a

'l *

\c d Ovkphl r

!"' 1 4: 1 -

.. . A x

wr 0.001 0.0001 1976 1977 1978 1979 1980 1981 1982 1983 1984 1985

- - Gr-B O Gr-A A Cc-144 W Cc-144 AVE LLD

FIGURE D-1 AIR PAlmCULATES - CNS AIEllA AND DETA MONIllLY AVERAGE - ALL LOCATIONS CE-144 QUARTERLY AVERAGE - ALL LOCA'I1ONS 1

I 0.1 {

ll

& %"*% VW f4 y/g! d4 %.

, %)

n y-O.001 0.0001 1986 1987 1988 1989 1990 1991 1992 1993

- Gr-B O Gr-A ^

Cc-144 0 Ce-144 Ave 11D

1 FIGURE D-2 AIR PAR 11CUIATES DUA MON'IllLY AVERAGE - JEFFERSON CrlY ,

MISSOURI ERAMS EPA 1

I l\

l l

%I II I t /g O.1 ik l4 g4 { ll /

w 5 O.01 r

(

O.001 0.0001 1976 1977 1978 1979 1980 1981 1982 1983 1984 1985

- -+ - . G. BETA ERAMS O CE-144 EML

FIGURE D-2 AIR PAIGCUIATES BETA MOVniLY AVERAGE - JEFFERSON CTIY MISSOURI ERAMS EPA 1

0.1 k

\

i l \ , t

P ~* # k

=

e g

m e.e a s._' L't+%

A v I \ s'*'a b wa/ w%

/t L .

0.001 0.0001 1985 1986 1987 1988 1989

- + - GROSS BETA ERAMS

TABLE D-1 1993 QUARTERLY REPORT NEBRASKA PUBLIC POWER DISTRICT COOPER NUCLEAR STATION EXPOSURE FATHWAY - AIRBORNE COMPOSITE OF WEEKLY AIR PARTICULATE FILTERS pCi/Cu. M.

SAMPLE STATION FIRST QUARTER SECOND QUARTER THIRD 00ARTER FOURTH QUARTER NUCLIDE NUMBER 12/29-03/30 03/30-06/29 06/29-09/28 09/28-12/28 BE-7 01-10 Heanistd.dev. 8.60 i 0.9 E-02 1.5 1 0.3 E-01 1. 2 1 0.3 (E-01) 1. 2 1 0. 2 (E-01) det./ total 10/10 10/10 10/10 9/9 range (7.52-9.84)E-02 (1. 23-2. 22 ) E-01 0. 76 i 1.73 (E-01 (0.76-1.64)E-01 K-40 01-10 Meanistd.dev. 2.85 1 0.61E-02 9.8 1 0.3 E-03 4.23 1 2.21 E-02 L.T. 4. E-02 det./ total 1/10 2/10 1/10 0/9 range --

(9.6-10)E-03 -- --

I-131 01-10 Meanistd.dev. L.T. 1. E-01 L.T. 3. E-01 L.T. 1. E 00 L.T. 2. E-01 (by gamno det./ total 0/10 0/10 0/10 0/9 spectroscopy) range --

u, Cs-134 01-10 Meanistd.dev. L.T. 7. E-04 L.T. 1. E-03 L.T. 8. E-03 L.T. 1. E-03 det./ total 0/10 0/10 0/10 0/9 range --

Cs-137 01-10 Meanistd.dev. L.T. 7. E-04 L.T. 1. E-03 L.T. 7. E-03 L.T. 1. E-03 det./ total 0/10 0/10 0/10 0/9 range -

Ra-226 01-10 Meanistd.dev. L.T. 1. E-02 L.T. 2. E-02 L.T. 1. E-01 L.T. 2. E-02 det./ total 0/10 0/10 0/10 0/9 range --

Th-228 01-10 Heanistd.dev. L.T. 1. E-03 L.T. 2. E-03 L.T. 1. E-02 L.T. 2. E-03 det./ total 0/10 0/10 0/10 0/9 range --

TABLE D-2 1993 QUARTERLY REPORT NEBRASKA PUBLIC POWER DISTRICT COOPER NUCLEAR STATION EXPOSURE PATHWAY - AIRBORNE COMPOSITE OF WEEKLY AIR PARTICULATE FILTERS - PCI/CU.M.

FIRST QUARTER SECOND QUARTER THIRD QUARTER FOURTH QUARTER SAMPLE STATION NUCLIDE NUMBER 12/29-03/30 03/30-06/29 06/29-09/28 09/28-12/28 BE-7 1-10 8.60 i 0.9 E-02 (10/10) 1.5 i 0.3 E-01 (10/10) 1.2 1 0.3 E-01 (10/10) 1.2 1 0.2 E-01 (9/ 9)

K-40 1-10 2.85 1 0.61E-02 (1/10) 9.8 i 0.3 E-03 (2/10) 4.2312.21 E-02 (1/10) L.T. 4. E-02 (0/9)

L.T. 7. E-04 (0/10) L.T. 1. E-03 (0/10) L.T. 7. E-03 (0/10) L.T. 1. E-03 (0/9)

Mn-54 1-10 Co-58 1-10 L.T. 1. E-03 (0/10) L.T. 1. E-03 (0/10) L.T. 1. E-02 (0/10) L.T. 2. E-03 (0/9)

Fe-59 1-10 L.T. 3. E-03 (0/10) L.T. 5. E-03 (0/10) L.T. 4. E-02 (0/10) L.T. 5. E-03 (0/9)

Co-60 1-10 L.T. 7. E-04 (0/10) L.T. 1. E-03 (0/10) L.T. 8. E-03 (0/10) L.T. 1. E-03 (0/9)

Zn-65 1-10 L.T. 2. E-03 (0/10) L.T. 2. E-03 (0/10) L.T. 2. E-02 (0/10) L.T. 3. E-03 (0/9) 1-10 1. E-03 (0/10) L.T. 2. E-03 (0/10) L.T. 1. E-02 (0/10) L.T. 2. E-03 (0/9)

$ Zr-95 L.T.

Ru-103 1-10 L.T. 2. E-03 (0/10) L.T. 3. E-03 (0/10) L.T. 2. E-02 (0/10) L.T. 2. E-03 (0/9)

Ru-106 1-10 L.T. 6. E-03 (0/10) L.T. 8. E-03 (0/10) L.T. 7. E-02 (0/10) L.T. 1. E-02 (0/9)

I-131 1-10 L.T. 1. E-01 (0/10) L.T. 3. E-01 (0/10) L.T. 1. E 00 (0/10) L.T. 2. E-01 (0/9)

Cs-134 1-10 L.T. 7. E-04 (0/10) L.T. 1. E-03 (0/10) L.T. 8. E-03 (0/10) L.T. 1. E-03 (0/9).

Cs-137 1-10 L.T. 7. E-04 (0/10) L.T. 1. E-03 (0/10) L.T. 7. E-03 (0/10) L.T. 1. E-03 (0/9)

Ba-140 1-10 L.T. 2. E-02 (0/10: L.T. 5. E-02 (0/10) L.T. 2. E-01 (0/10) L.T. 3. E-02 (0/9)

Ce-141 1-10 L.T. 3. E-03 (0/10) L.T. 8. E-03 (0/10) L.T. 3. E-02 (0/10) L.T. 4. E-03 (0/9)

Ce-144 1-10 L.T. 3. E-03 (0/10) L.T. 1. E-02 (0/10) L.T. 3. E-02 (0/10) L.T. 6. E-03 (0/9)

Ra-226 1-10 L.T. 1. E-02 (0/10) L.T. 2. E-02 (0/10 L.T. 1. E-01 (0/10) L.T. 2. E-02 (0/9)

Th-228 1-10 L.T. 1. E-03 (0/10) L.T. 2. E-03 (0/10) L.T. 1. E-02 (0/10) L.T. 2. E-03 (0/9)

E. FISH (See Tables E-1. E-2)

STATIONS 28. 35

- Fish samples were collected during the summer and fall at the above stations and analyzed for gross beta. Sr-89, Sr-90, and gamma emitting l isotopes. An attempt was made to collect a middle-top feeding fish (carp) and a bottom feeding fish (catfish). Due to the near-flood conditions of the i Missouri River in the summer, only carp were available in sufficient numbers for a valid sample. Both types of fish were collected during the fall sampling event.

The gross beta and Sr-90 activities were similar to the levels of previous years. Strontium-90 was detected in four of eight samples at a level of l 0.0066 pCi/ gram, wet. which is below the normal level of detection. There )

were no detections of Sr-89. Naturally occurring K-40 was detected in all samples at an average level of 3.29 pCi/gm wet.

There were no detections of Cs-137 during .1993. ,

l Plotted in Figure E-1 are the radionuclides gross beta, K-40, Sr-90 and Cs-137 monitored in fish samples which show no appreciable change from 1977 through 1993. The plot of the nuclides shows that most of the gross beta activity is due to the terrestrial nuclide K-40.

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TABLE E-1 1993 QUARTERLY REPORT' NEBRASKA PUBLIC POWER DISTRICT l' COOPER NUCLEAR STATION EXPOSURE PATHWAY - INGESTION FISH - PCI/GM, WET SAMPLE STATION FIRST QUARTER SECOND QUARTER THIRD QUARTER FOURTH QUARTER.

06/02- 10/06, 10/07 I NUCLIDE NUMBER Gross Beta 28, 35 Meanistd.dev. '5.3 1 0.2 E 00 5.7 i 0.9 E 00 det./ total 3/3 5/5.

range (5.1-5.5)E 00 (4.8-7.1) E 00 Sr-89 28, 35 Meanistd.dev. L.T. 6. E-03 L.T. 7 E-03 det./ total 0/3 0/5 range 28, 35 Meanistd.dev. 7.7 i 0.8 E-03 3. 3 1 2.1 E-03 Sr-90 det./ total 3/3 1/5 range (6.8-8.2)E-03 --

K-40 28, 35 Meanistd.dev. 3.7210.4 E 00 3.0 1 0.8 E 00 m 3/3 5/5 o ..det./ total range (3.31-4.06) E 00 (2.2-4.1) E 00 l- Co-60 28, 35 Heanistd.dev. L.T. 7. E-03 L.T. 1. E-02

' det./ total 0/3 0/5 range.

I-131 28, 35 Meanistd.dev. L.T. 1. E-02 L.T. 7. E-02 det./ total 0/3 0/5 range Cs-134 28, 35 Meanistd.dev. L.T. 81 E-03 L.T. 1. E-02 det./ total O/3 0/5 range Cs-137 28, 35 Meanist d.dev.- L.T. 8. E-03 L.T. 1. E-02 det./ total 0/3 0/5 range

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e e s e e a TELE Il-2 1993 QUARTERLY REPORT NEBRASKA PUBLIC POWER DISTRICT COOPER NUCLEAR STATION EXPOSURE PATHWAY - INGESTION FISH - PCI/GM, WET STATION FIRST QUARTER SECOND QUARTER THIRD QUARTER FOURTH QUARTER SAMPLE 10/06, 10/07 NUCLIDE NUMBER 06/02 BE-7 28, 35 L.T. 6. E-02 (0/3) L.T. 1. E-Ol(0/5)

K-40 28, 35 3.7210.4E 00 (3/3) 3.0 i O.8 E 00(5/5)

Mn-54 28, 35 L.T. 7. E-03(0/3) L.T. 1. E-02 (0/5)

Co-58 28, 35 L.T. 7. E-03(0/3) L.T. 1. E-02(0/5)

Fe-59 28, 35 L.T. 2. E-02 (0/3) L.T. 3. E-02(0/5)

Co-60 28, 35 L.T. 7. E 00(0/3) L.T. 1. E-02 (0/ 5)

Zn-65 28, 35 L.T. 2. E-02 (0/3) L.T. 3. E-02 (0/5) m 7. 1. E-02(0/5) ed Er-95 28, 35 L.T. E-03 (0/3) L.T.

Ru-103 28, 35 L.T. 7. E-03 (0/3 ) L.T. 2. E-02 (0/5)

Ru-106 28, 35 L.T. 6. E-02 (0/3) L.T. 1. E-01(0/5)

I-131 28, 35 L.T. 1. E-02(0/3) L.T. 7. E-02 {0/5)

Cs-134 28, 35 L.T. 8. E-03 (0/3) L.T. 1. E-02 (0/5)

Cs-137 28, 35 L.T. 8. E-03(0/3) L.T. 1. E-02(0/5)

Ba-140 28, 35 L.T. 9. E-03 (0/3 ) L.T. 3. E-02 (0/5)

Ce-141 28, 35 L.T. 9. E-03 (0/3) L.T. 3. E-02(0/5)

Ce-144 28, 35 L.T. 4. E-02 (0/3) L.T. 7. E-02 (0/5)

Ra-226 28, 35 L.T. 1. E-01 (0/2) L.T. 2. E-Ol(0/5)

Th-228 28, 35 L.T. 1. E-02 (0/3) L.T. 2. E-02 (0/5) 1

l l F. MILK (See Tables F-1. F-21 i

l STATION 99 (NEAREST PRODUCER) ,

Milk samples from the nearest producer Station 99, 10.25 miles, 189 .

degrees from the elevated release point of CNS were collected once every 15 days in peak pasture season and once every 31 days the rest of the year.

The monthly samples collected January through May and October through December were analyzed for 1-131 by chemical separation, for elemental calcium and strontium 89 and 90. In addition they were analyzed for gamma emitting isotopes on a high resolution gamma spectrometer. The samples colle'cted every 15 days during peak pasture season were analyzed upon re-ceipt for 1-131 and gamma emitting isotopes. A monthly composite was prepared and analyzed as described above.

There were no detections of I-131 in the twenty-three samples analyzed by chemical separation. There were no detections of Sr-89 in the samples ,

analyzed. Strontium-90 was detected at an average level of 2.0 pCi/ liter, which is a normal environmental level. Elemental calcium was found at an average level of 1.6 mg/ liter. Potassium-40, a naturally occurring isotope, was detected at an average level of 1370 pC1/ liter.

Cesium-137 was not detected in any of the samples analyzed. There was l no indication of an effect on the milk of the producer nearest the plant from

l l the operations of CNS.

i l

Shown in Figure F-1 and F-2 are the plots of radionuclides monitored .

from 1977 through 1993 in milk samples from producers nearest the reac-tor. The levels of K-40, elemental calcium and Sr-90 remained stable.

There were no detections of I-131, Sr-89 or Cs-137. This indicates no effect on milk samples from the operations of CNS.

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TABLE F-1 1993 QUARTERLY REPORT NEBRASKA PUBLIC POWER DISTRICT COOPER NUCLEAR STATION EXPOSURE PATHWAY - INGESTION MILK - NEAREST PRODUCER - PCI/ LITER SAMPLE STATION FIRST QUARTER SECOND QUARTER THIRD QUARTER FOURTH QUARTER NUCLTDE NUMBER 01/05-03/02 04/06-06/29 07/13-09/21 10/05-12/07 SR-89 99 Meanistd.dev. L.T. 1. E 00 L.T. 8. E-01 L.T. 1. E 00 L.T. 1. E 00 det./ total 0/3 0/5 0/6 0/4 range SR-90 99 Heanistd.dev. 2.2 i 1.0 E 00 1.7 i 0.3 E 00 2.1 1 0.3 E 00 2.2 1 0.7 E 00 det./ total 3/3 5/5 6/6 4/4 range (1.3-3.3)E 00 (1. 4-2.0) E 00 (1.5-2.3)E 00 (1. ?-3.2) E 00 I-131 99 Meanistd.dev. L.T. 2. E-01 L.T. 3. E-01 L.T. 3. E-01 L.T. 3. E-01 by chemical det./ total 0/3 0/7 0/9 O/4 separation range --

Ca 99 Heanistd.dev. 1.2 1 0.9 E 00 1.7 i 0.1 E 00 1.8 i 0.1 E 00 1.7 i O.2 E 00 gm/ liter det./ total 3/3 5/5 5/5 4/4 range (0.2-1.8) E 00 (1.7-1.8) E 00 (1.7-1.8) E 00 (1.7-1.7) E 00 O K-40 99 Meanistd.dev. 1.35 1 0.05E 03 1.4010.13E 03 1.3510.091E 03 1.36 i 0.07 E 03 det./Lotal 3/3 7/7 9/9 4/4 range (1.30-1.39) E 03 (1.14-1.53)E 03 (1.16-1.46) E 03 (1.28-1. 4 4 ) E 03 I-131 99 Meanistd.dev. L.T. 8. E 00 L.T. 1. E 01 L.T. 2. E 01 L.T. 1. E 01 by gamma det./ total O/3 O/7 0/9 0/4 spectroscopy range --

Cs-134 99 Meanistd.dev. L.T. 5. E 00 L.T. 5. E 00 L.T. 5. E 00 L.T. 4. E 00 det./ total *0/3 O/7 O/9 O/4 range --

Cs-137 99 Meanistd.dev. L.T. 5. E 00 L.T. 5. E 00 L.T. 5. E 00 L.T. 4. E 00 det./ total 0/3 0/7 0/9 O/4 range --

l 1

' TMsL*1 F-2 1993 QUARTERLY REPORT NEBRASKA PUBLIC POWER DISTRICT COOPER NUCLEAR STATION EXPOSURE PATHWAY - INGESTION l

MILK - NEAREST PRODUCER - PCI/ LITER SECOND QUARTER THIRD QUARTER FOURTH QUARTER SAMPLE STATION FIRST QUARTER 10/05-12/07 NUCLIDE NUMBER 01/05-03/02 04/06-06/29 07/13-09/21 l

4. E 01 (0/3) L.T. 4. E 01 (0/7) L.T. 5. E 01 (0/9) L.T. 3. E 01 (0/4)

BE-7 99 L.T.

K-40 99 1.3510.05 E 03 (3/3) 1.4010.13 E 03 (7/7) 1.3510.091E 03 (9/9) 1.36 i 0.07E 03 (4/4) 99 L.T. 5. E 00 (0/3) L.T. 4. E 00 (0/7) L.T. 5. E 00 (0/9) L.T. 4. E 00 (0/4)

Mn-54 Co-58 99 L.T. 5. E 00 (0/3) L.T. 4. E 00 (0/7) L.T. 5. E 00 (0/9) L.T. 4. E 00 (0/4)

Fe-59 99 L.T. 1. E 01 (0/3) L.T. 1. E 01 (0/1) L.T. 1. E 01 (0/9) L.T. 1. E 01 (0/4)

Co-60 99 L.T. 5. E 00 (0/3) L.T. 5. E 00 (0/7) L.T. 5. E 00 (0/9) L.T. 5. E 00 (0/4)

E 01 (0/3) L.T. 1. E 01 (0/7) L.T. 1. E 01 (0/9) L.T. 1. E 01 (0/4)

Zn-65 99 L.T. 1.

Zr-95 99 L.T. 5. E 00 (0/3) L.T. 4. E 00 (0/7) L.T. 5. E 00 (0/9) L.T. 4. E 00 (0/4)

Ru-103 99 L.T. 5. E 00 (0/3) L.T. 5. E 00 (0/7) L.T. 6. E 00 (0/9) L.T. 5. E 00 (0/4)

$ Ro-106 99 L.T. 4. E 01 (0/3) L.T. 4. E 01 (0/7) L.T. 4. E 01 (0/9) L.T. 3. E 01 (0/4)

I-131 99 L.T. 8. E 00 (0/3) L.T. 1. E 01 (0/7) L.T. 2. E 01 (0/9) L.T. 1. E 01 (0/4)

E 00 (0/3) L.T. 5. E 00 (0/7) L.T. 5. E 00 (0/9) L.T. 4. E 00 (0/4)

Cs-134 99 L.T. 5.

Cs-137 99 L.T. 5. E 00 (0/3) L.T. 5. E 00 (0/7) L.T. 5. E 00 (0/9) L.T. 4. E 00 (0/4)

Ba-140 99 L.T. 6. E 00 (0/3) L.T. 8. E 00 (0/7) L.T. 1. E 01 (0/9) L.T. 7. E 00 (0/4)

Ce-141 99 L.T. 8. E 00 (0/3) L.T. 9. E 00 (0/7) L.T. 9. E 00 (0/9) L.T. 9. E 00 (0/4)

Ce-144 99 L.T. 3. E 01 (0/3) L.T. 4. E 01 (0/7) L.T. 3. E 01 (0/9) L.T. 3. E 01 (0/4)

Ra-226 99 L.T. 8. E 01 (0/3) L.T. 1. E 02 (0/1) L.T. 9. E 01 (0/9) L.T. 8. E 01 (0/4)

Th-228 99 L.T. 8. E 00 (0/3) L.T. 9. E 00 (0/7) L.T. 8. E 00 (0/9) L.T. 7. E 00 (0/4)

G. MILK ISEE TABLES G-1. G-2)

. STATIONS 42.100 IOTHER PRODUCERS)

Milk samples were collected quarterly from other producers, Station 42, 12.9 miles from the plant and Station 100 which'is 11.5 miles from the plant. The samples were analyzed for I-131 by chemical separation. for elemental calcium, for Sr-89 and 90 and for gamma emitting isotopes.

There were no detections of I-131 in the eight samples monitored.

There were no detections of Sr-89. Strontium-90 was found at an average level of 1.6 pC1/ liter. There were 1.8 mg of calcium per liter of milk.

Potassium-40 was detected at an average level of 1410. pCi/ liter. The strontium-90. K-40 and elemental calcium were at normal environmental levels and were similar to the results obtained from analyses of milk from the nearest producer. There were no detections of Cs-137 in the samples collected. It can be concluded that the operations of CNS had no effect on milk samples and thus no dose impact on the population.

The levels of radioactivities of the nuclides K-40, I-131 and Cs-137 are plotted on Figure G-1. Potassium-40 was at normal environmental levels as in previous years. There were no detections of I-131 or Cs-137. Figure G-2 shows that Sr-90 and elemental calcium are at a level comparable to previous

, years and there were no detections of Sr-89. These graphs indicate that there was no appreciable difference between the levels of activity of the nearest producer and the commercial producers. This indicated no effect on milk samples from the operations of CNS.

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DO G O L 73 RL P L 1

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- ' 0 9 -

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. 0 "

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0 ~

M '

9 1 0 4-K 44 - M t , - M

6 ?

8 0 . -

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0 g 1 0 ,

. 1

. L

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D _

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8 A 9

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1 9 8

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SO RI A

ET CA U CA D LOC O

R LM l._ _

2 8

9 1

C 0

P L E 2L AL .-

- - E '

GI AE 0 .--

E C G9 ...-

R RA - .

1 U ER R 8

G ME S 9 F MV 9

' 1 I

OA8 -

CYL R =

0 9

R S = '

R KE L T .--

=

. S .

I ' 0 MR . ...

8 A . 9 U '

1 Q .-

_ J '

m .

' 9 7

9

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9 8- -

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@ 9 1

1 1 0 0 0 1 0 1 .

$aN6. ! = .

m

FIGURE G-2 MILK- COMMERCIAL PRODUCERS QUAIMERLY AVERAGE - ALL LOCADONS SR-89 SR-90 ELEM. CA.

100 D

5 10 s

0 d

,_ - . A . _, . _ e . A,,.....

5, .

g _ _ __ _ _ _ _ ,

1 O.1 '

1986 1987 1988 1989 1990 1991 1992 1993

? SR-89 : SR-90 0- CA - SR-89 AVE LLD

TABLE G-1 1993 QUARTERLY REPORT NEBRASKA PUBLIC POWER DISTRICT COOPER NUCLEAR STATION EXPOSURE PATHWAY - INGESTION MILK - OTHER PRODUCERS - PCI/ LITER FIRST QUARTER SECOND QUARTER THIRD QUARTER FOURTH QUARTER SAMPLE STATION 10/12 NUCLIDE NUMBER 01/13 04/13 07/13

8. E-01 E-01 L.T. 6. E-01 L.T. 1. E 00 SR-89 42, 100 Meanistd.dev. L.T. L.T. 7.

0/2 det./ total O/2 0/2 0/2 range 42, 100 Mean std.dev. 1.9 i O.1 E 00 1.4 1 0.2 E 00 1.5 1 0.1 E 00 1.8 1 0.2 E 00 SR-90 2/2 det./ total 2/2 2/2 2/2 range (1.8-2.0) E 00 (1. 4-1. 4) E 00 (1.4-1.5) E 00 (1. 6-1. 9) E 00 42, 100 Meanistd.dev. L.T. 2. E-01 L.T. 2. E-01 L.T. 2. E-01 L.T. 2. E-01 I-131 0/2 (by chemical det./ total 0/2 0/2 0/2 separation) range -

42, 100 Meanistd.dev. 1.8 1 0.2 E 00 1.7 i 0.2 E 00 1.7 1 0.2 E 00 1.8 i 0.2 E 00 Ca y

e gm/ liter det./ total 2/2 2/2 2/2 2/2 range (1.8-1.8) E 00 (1.7-1.7) E 00 (1.7-1.7) E 00 (1. 8-1. 8) E 00 K-40 42, 100 Meanistd.dev. 1.37 1 0.1E 03 1.49 i 0.01E 03 1.4310.014E 03 1.36 i 0.04E 03 det./ total 2/2 2/2 2/2 2/2 range (1.2 9-1. 4 4) E 03 (1. 4 8-1. 50) E 03 (1.42il.44)E 03 (1.33-1.39) E 03 I-131 42, 100 Heanistd.dev. L.T. 7. E 00 L.T. 9. E 00 L.T. 6. E 00 L.T. 9. E 00 (by gamma det./ total 0/2 0/2 0/2 0/2 spectroscepy) range -

Cs-137 42, 100 Meanistd.dev. L.T. 4. E 00 L.T. 4. E 00 L.T. 5. E 00 L.T. 5. E 00 det./ total 0/2 0/2 0/2 0/2 range -

a - _ - . . - _ _ _ _ _ - - _ _ _ - - - - _ _ - - _ - _ - - _ - - - - . _ . - - _ _ - - - - _ _ - - - . - - - - - _

TABLE G-2 1993 QUARTERLY REPORT NEBRASKA PUBLIC POWER DISTRICT COOPER NUCLEAR STATION EXPOSURE PATHWAY - INGESTION MILK - OTHER PRODUCERS - PCI/ LITER SAMPLE STATION FIRST QUARTER SECOND QUARTER THIRD QUARTER FOURTH QUARTER 4

NUCLIDE NUMBER 01/13 04/13 07/13 10/12 1

BE-7 42, 100 L.T. 4. .E 01 (0/2) L.T. 4. E 01 (0/21- L.T. 3. E 01 (0/2) L.T. 4. E 01 (0/2)

K-40 42, 100 1.37 i 0.1E 03 (2/2) 1.49 i 0.01E 03(2/2) 1.4310.014E 03 (2/2). 1.36 1 0.04E 03(2/2)-

Mn-54 42, 100 L.T. 4. E 00 (0/2) L.T. 4. E 00 (0/2) L.T. 3. E 00 (0/2) L.T. 4. E 00 (0/2)

Co-58 42, 100 L.T. 4. E 00 (0/2) L.T. 4. E 00 (0/2) .L.T. 4. ' E 00 (0/2) L.T. 4. E 00 (0/2)

Fe-59. 42, 100 L.T. 9. E 00 (0/2) L.T. 1. E 01 (0/2) L.T. B. E 00 (0/2) L.T. 1. E 01 (0/2)

Co-60 42, 100 L.T. 5. E 00 (0/2) L.T. 5. E 00 (0/2) L.T. 4. E 00 (0/2) L.T. 4. E 00 (0/2) f Zn-65 42, 100 L.T. 1. E 01 (0/2) L.T. 1. E 01 (0/2) L.T. 8. E 00 (0/2) L.T. 1. E 01 (0/2)

Zr-95 42, 100 L.T. 4. E 00 (0/2) L.T. 4. E 00 (0/2) L.T. 4. E 00 (0/2) L.T. 4. E 00 (0/2)

a Ru-103 42, 100 L.T. 4. E 00 (0/2) L.T. 4. E 00 ~ (0/2) L.T. 4. E 00 (0/2) L.T. 5. E 00 (0/2) m Ru-106 42, 100 L.T. 4. E 01 (0/2) L.T. 3. E 01 (0/2) L.T. 3. E 01 (0/2) L.T. 4. E 01 (0/2)

I-131 42, 100 L.T. 7. E 00 (0/2) L.T. 9. E 00 (0/2) L.T. 6. E 00 (0/2) L .T .' 9. E 00 (0/2)

Cs-134 42, 100 L.T. 4. E 00 (0/2) L.T. 4. E 00 (0/2) L.T. 4. E 00 (0/2). L.T. 4. E 00 (0/2)

Cs-137 42, 100 L.T. 4. E 00 (0/2) L.T. 4. E 00 (0/2) -- L . T . 5. E 00 (0/2) L.T. 5. E 00 (0/2)

Ba-140 42, 100 'L.T. 7. E 00 (0/2) L.T. 7. E 00 (0/2)' L.T. 5. E 00 (0/2) L.T. 7. E 00 (0/2)

Ce-141 42, 100 L.T. 8. E 00 (0/2) L.T. 9. E 00 (0/2) L.T. 6. E 00 (0/2) L.T. 8. E 00 (0/2) i ce-144 42, 100 L.T. 3. E 01 (0/2) L.T. 3. E 01 (0/2) L.T. 3. E 01 (0/2) -L.T. 3. E 01 (0/2)

Ra-226 42, 100 L.T. 9. E 01 (0/2) L.T. 1. E 02 (0/2) L.T. 7. E 01 (0/2) L.T. 9. E 01 (0/2)

Th-228 42, 100 L.T. 7. E 00 (0/2) L.T. 9. E 00 (0/2) L.T. 6. E 00 (0/2) L.T. 7. E 00 (0/2) i

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

STATIONS 11. 47 ,

Groundwater was collected from two stations quarterly and analyzed for -

gross beta and gross alpha activity, for tritium and for gamma emitting radionuclides. Stadon 11 is 0.15 miles from the plant and station 47 is 25.75 miles from the plant.

The gross beta activity averaged 9.5 pC1/ liter which is statisucally similar to past years. 'Ihere was one detection of alpha at Station 47 with an activity level of 3.0 pCi/ liter. which frequently occurs from natural ground sources.

There were no detections of gamma emitters above the normal level of detection. The tritium level averaged 140 pCi/ liter for the year.which is the normal environmental level.

j There was no difference in levels of beta activity or tritium for the l

station close to the plant as compared with the more distant station. It may i be concluded that there was no impact from the operations of CNS on the environment as shown by measurements of radionuclides in groundwater.

Shown in Figure H-1 are the gross alpha, gross beta and tritium levels in

!- groundwater. The levels of these activities have remained essentially

unchanged.

l 4

, 76

n g 3

/a 1

3 -

m. ' 1 1

_ ' 5 8

9

' 1 C

_ ' 4 8 n 9 J 1 I E _

._ V A _

A 3 ' 3 R 8

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I T 1 - - _

A m ' - _

C A . e _

._ OT L E

' 2 8

= .. 9 _

L B - . ' 1 R LASS

. 3-J m E _

1 T - O :

1 1

1 A R 1

WE '

_ EDG A G .[ '

1 R

UUE A N R I 4 , 8 9 O

.= GOVP I

I

' 1 F GR AL Y A L S .

4 RS '

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. %_ T I

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9 1

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r 9 O

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7 9

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9 1

0 0 0 1 1 0 0 1 O

0 1

1 D52 k

. D

D _

L

_ C J L

x e A,- _

a E

V t A .

, 3-x -

R 3 H 9 _

b <-

E 9

1 .

E C

x -

9 i =

A 2 9 D v A 9

1 L

L E

- R V A

v A 4 R R

S N ; - 3 1 G N 3 9 0

1 1

- 9 1

1 1

/ -

3

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C A G 3

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9 3-AE R H 1 e 1

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9 0 .

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. 9 9 8

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E E

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Q I . _

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9 _

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A G

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1 0 0 0 0 '

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1 5

TABLE B-1 1993 QUARTERLY REPORT NEBRASKA PUBLIC POWER DISTRICT COOPER NUCLEAR STATION EXPOSURE PATHWAY - WATEPBORNE GROUNDWATER - PCI/ LITER SAMPLE STATION FIRST QUARTER SECOND QUARTER THIRD QUARTER FOURTH QUARTER NUMBER 01/19, 01/20 04/20, 04/21 07/27, 07-28 10/19 NUCLIDE 11, 47 Heanistd.dev. L.T. 4. E 00 3.0 1.9 E 00 L.T. 3. E 00 L.T. 4. E 00 GROSS ALPHA det./ total 0/2 1/2 0/2 0/2 range --

GROSS 11, 47 Meanistd.dev. 1.2 1 0.7 E 01 9.2 i 1.1E 00 8.3 i 0.1E 00 9.2 i 1.2 E 00 BETA det./ total 2/2 2/2 2/2 2/2 range (1.1-1.2) E 01 (8.4-10)E 00 (8.2-8.4)E 00 (8.3-10) E CO u

ua K-40 11, 47 Meanistd.dev. L.T. 8. E 01 L.T. 5. E 01 L.T. 6. E 01 L.T. 7. E 01 det./ total 0/2 0/2 0/2 0/2 range --

11, 47 Meanistd.dev. L.T. 6. E 00 L.T. 6. E 00 L.T. 8. E 00 L.T. 2. E 01 I-131 (by gamma det./ total O/2 0/2 0/2 0/2 spect roscopy) range --

Cs-137 11, 47 Meanistd.dev. L.T. 4. E 00 L.T. 4. E 00 L.T. 4. E 00 L.T. 3. E 00 det./ total 0/2 0/2 0/2 0/2 range --

H-3 11, 47 Meanistd.dev. 1.4 i 0.8 E 02 L.T. 1. E 02 L.T. 1. E 02 L.T. 1. E 02 det./ total 1/2 0/2 0/2 0/2 range --

TA"LE G-2 1993 QUARTERLY REPORT NEBRASKA PUBLIC POWER DISTRICT COOPER NUCLEAR STATION EXPOSURE PATHWAY - WATERBORNE GROUNDWATER - PCI/ LITER SAMPLE STATION FIRST QUARTER SECOND QUARTER THIRD QUARTER FOURTH QUARTER NUMBER 01/19, 01/20 04/20, 04/21 07/27, 07/28 10/19 NUCLIDE BE-7 11, 47 L.T. 3. E 01 (0/2) L.T. 3. E 01 (0/2) L.T. 3. E 01 (0/2) L.T. 3. E 01 (0/2)

K-40 11, 47 L.T. 8. E 01 (0/2) L.T. 5. E 01 (0/2) L.T. 6. E 01 (0/2) L.T. 7. E 01 (0/2)

Mn-54 11, 47 L.T. 3. E 00 (0/2) L.T. 3. E 00 (0/2) L.T. 3. E 00 (0/2) L.T. 3. E 00 (0/2)

L.T. 3. E 00 (0/2) L.T. 3. E 00 (0/2) L.T. 3. E 00 (0/2)

Co-58 11, 47 L.T. 3. E 00 (0/2)

E 00 (0/2) L.T. 7 E 00 (0/2) L.T. 7. E 00 (0/2) L.T. 7. E 00 (0/2)

Fe-59 11, 47 L.T. 7.

co E 00 (0/2) c) Co-60 11, 47 L.T. 3. E 00 (0/2) L.T. 4. E 00 (0/2) L.T. 3. E 00 (0/2) L.T. 4.

Zn-65 11, 47 L.T. 8. E 00 (0/2) L.T. 9. E 00 (0/2) L.T. 8. E 00 (0/2) L.T. 8. E 00 (0/2)

Zr-95 11, 47 L.T. 3. E 00 (0/2) L.T. 4. E 00 (0/2) L.T. 4. E 00 (0/2) L.T. 4. E 00 (0/2)

Ru-103 11, 47 L.T. 4. E 00 (0/2) L.T. 4. E 00 (0/2) L.T. 4. E 00 (0/2) L.T. 5. E 00 (0/2)

Ru-106 11, 47 L.T. 3. E 01 (0/2) L.T. 3. E 01 (0/2) L.T. 3. E 01 (0/2) L.T. 3. E 01 (0/2)

I-131 11, 47 L.T. 6. E 00 (0/2) L.T. 6. E 00 (0/2) L.T. 9. E 00 (0/2) L.T. 2. E 01 (0/2)

Cs-134 11, 47 L.T. 4. E 00 (0/2) L.T. 4. E 00 (0/2) L.T. 4. E 00 (0/2) L.T. 3. E 00 (0/2)

Cs-137 11, 47 L.T. 4. E 00 (0/2) L.T. 4. E 00 (0/2) L.T. 4. E 00 (0/2) L.T. 3. E 00 (0/2)

Ba-140 11, 47 L.T. 6. E 00 (0/2) L.T. 6. E 00 (0/2) L.T. 6. E 00 (G/2) L.T. 8. E 00 (0/2)

Ce-141 11, 47 L.T. 8. E 00 (0/2) L.T. 6. E 00 (0/2) L.T. 9. E 00 (0/2) L.T. 9. E 00 (0/2)

Ce-144 11, 47 L.T. 3. E 01 (0/2) L.T. 2. E 01 (0/2) L.T. 3. E 01 (0/2) L.T. 3. E 01 (0/2)

Ra-226 11, 47 L.T. 9. E 01 (0/2) L.T. 6. E 01 (0/2) L.T. 1. E 02 (0/2) L.T. 8. E 01 (0/2)

Th-228 11, 47 L.T. 7. E 00 (0/2) L.T. 6. E 00 (0/2) L.T. B. E 00 (0/2) L.T. 7. E 00 (0/2)

_ _ _ - . _ . _ _ _ _ _ _ . - - - . . _ . _ . _ _ _ . _ - _ - - _ _ _ _ _ _ _ - - - _ _ _ _ _ _ - - -a -__-_ - . _ _

I. RIVER WATER (See Table I-1 and I-21 l, STATIONS 12. 28

. River water was collected monthly and monitored for gross beta and gross alpha, suspended and dissolved. Sr-89 and Sr-90 plus gamma emitting isotopes. A quarterly composite was measured for tritium.

There were three detections of potassium-40 with an average of (66,0 pC1/1) above the normal level of detection. There were no detections of Sr-89 and Sr-90.

i The average gross alpha and gross beta readings were similar to previous years as indicated in the summary of 1992 and 1993 averages below:

l l

1992 1993 Average pCi/ liter Average pCi/ liter L Gross Alpha 4.4. 4.0 l (dissolved) l l Gross Alpha 3.1 3.9 l

(suspended)

L* Gross Beta 18.0 13.0 l (dissolved) l l

Gross Beta 7.5 15.0 (suspended) -

l Figure I-1, which follows, is a plot of the gross alpha and gross beta of l suspended and dissolved particles. The results for 1986 through 1993.are l on the second page. The levels of activity continued to rise and fall within l statistical limits depending on water levels and turbulence and were probably

! due to naturally occurring isotopes. No fission or reactor activation products l were detected. Figure I-2 illustrates the level of activity for tritium. Sr-89 l and Sr-90.

l l

t 81 l

i l

FIGURE I-1 RIVER WATER QUARTERLY AVERAGE - ALL LOCA'ITONS GROSS ALPilA AND GROSS BETA (SUSPENDED AND DISSOLVED SOLIDS) 100 l\

+

\ I\ 8 p\

\ b % \ %

no / 4 g !'y\ , ,

k+ .$t

\/ g m

f v. _,_ i 1+-+ -

g

;f j wt.y o.\, jg y tjn 1- 1 ef

\/

W o,i ....................... ,,,,,,,,,,,

1977 1978 1979 1980 1981 1982 1983 1984 1985

+-- G. ALPIIA(DS) = G. ALPHNSS) C Gr-ND) ave LLD C Gr-AIS) ave U.D

= G. BETA!DS) --e - G. BETA (SS)

I FIGURE I-1 I RIVER WATER QUARTERLY AVERAGE - ALL LOCA110NS GROSS ALPilA AND GROSS DETA (SUSPENDED AND DISSOLVED SOLIDS) 100 t e gt a l . N R /

\

\ i i

/

1%

_ _._ W "R El

_. *

1

/

hn{

~

n as 10 n n!

l NLlPh N

~

/U~+

1Muinhil b'Y q<f 4 M

@[ *

,+6

g +

x '. .'

\ l 1- ..

11

+

o,i . ..............................

1986 1987 1988 1989 1990 1991 1992 1993

--+-- G. ALPilA (DS) ::: G. ALPilA(SS) C Gr-A (D) ave LLD O Gr-A (S) ave LLD

= G. BETA (DS) --O-- G. BETA (SS)

_m _

n

_ 1 k, '

1 E

V

_. ' A

_ 0 a

_ ' 5 9-

- 8 R V

_ " 9

' 1 S i

- ' e _

n

^ _

' 4 C _

e '

8 9

1 m

M -

n 3

1 A

3 E s '

8 V 9 A k.

' 1 9 S 8-

_ N

~

R O

I S

T '

A 4

C ' 2 8 -

_ O 9

. L 3- ' 1 e-

. L L H A 4 ~

- 0 2- R EE 9 '

l EK I

RWRAS GR M '

1 8

3-H U RE 9 8-

+ '

9 1

GEV e

I F V YS AR + _

I R L ~N + =

W

R. a t _

' 0 >

_y l

A U

x M '

8 9

1 Q s

@ 0 9-R

_y. k . [-

S

' 9 7

_. 9

' 1

_ =

N

- hs ' 8 7

9 9

' 1 8-

p. R 7 ' 7 7

S 9

1 ]

1 e 0 0 0 1 0 0 1 0

0 1 1

_ w3m N gc.

o c4

l I

n 3

I h u E V

= [%,~~- "

A 3-

. = - H

" 3 N

Y*_

8 9

9 1

^

k N r

g " 2 9 n 1

" = 9 1

1 E

g% V

_ ~- M~ r A

0 9-S - R N

O N. " 1 9

S H - 9

" 1 A'

C F W C O

r L 3 M l1 -

Y T "

K l 1 A

2 R -

- 0 S " 0 9 n l

E E 9- _

E T G R E 3* "

9 1

1 1

R A A S Y E= E UWR " V G R E 9 A I

F E V VA R 8 - @= "

9 8-RY I

L S M' 9 R

S R #

8 E #" 9 I

" 1 K -

A M -

U . " 4-Q N/

N,

" 8 8 3-9 f " 1 H

K t

i

- " =

5" Q ' 7 8

]-

9 1

p 9 8-0 9-R R S

S S g/

6 8

9 1

=

0 0 0 1 1 0 0 1 0 -

0 1 .

1 wy. x 0c 8

F 1 l. l l

l l

6 TABLO I-1 1993 QUARTERLY REPORT i

NEBRASKA PUBLIC POWER DISTRICT COOPER NUCLEAR STATION f EXPOSURE PATHWAY - WATERBORNE i-I WATER - RIVER PCI/ LITER FIRST QUARTER SECOND QUARTER THIRD QUARTER FOURTH QUARTER SAMPLE STATION NUMBER 01/19-03/09 04/06-06/01 07/06-09/07 10/05-12/07 NUCLIDE 12, 28 Heanistd.dev. 2.7 i 2.6 E 00 4.4 i 0.8 E 00- L.T. 4. E 00 5.0.i 3.8 E 00 GROSS 0/4 ALPHA det./ total 2/6 4/6 1/6

! (dissolved)' range (0.9-4.6).E 00 (3.3-5.0)E.00 -- --

12, 28 Meanistd.dev. 6.4 i 6.6 E 00 4.0 1 1.6 E 00 L.T. 1. E 01 1.2 1 0.5 E 00 GROSS ALPHA det./ total 4/6 5/6 0/4 4/6 (suspended) range (0.6-1.3) E 01 (2.6-6.4) E 00 --

(0.4-1.6) E 00 ;

12, 28 Meanistd.dev. 1.1 i O.4 E 01 1.5 i 0.4 E 01 1.2 1 0.2 E 01 1.3 i O.4 E 01 GROSS 4/4 6/6 det./ total 6/6 6/6 BETA (8.3-19) E 00 range (0.49-1.6) E 01 (1.2-2.3) E 01 (1. 0-1. 4 ) E 01 (dissolved)

GROSS 12, 28 Meanistd.dev. 2.6 i 4.0 E 01 1.2 1.0.6 E 01- 2.5 i 2.9 E 01 3.4 i 1.3 E 00 ,

BETA det./ total 6/6 6/6 3/4 6/6 (suspended) range (0.14-9.5)E 01 (5.2-21)E 00 (0.77-5.8) E 01 (2.0-5.7) E 00 m

m E 00 1.

i Sr-89 12, 28 Meanistd.dev. L.T. 8.. E-01 L.T. 9. E-01 L.T. 2. L.T. E 00

, det./ total O/6 O/6 O/4 0/6 range ,

12, 28 Meanistd.dev. L.T. 8 E-01 L.T. 8 .' E-01 L.T. 9. E L.T. 9. E-01 Sr-90 O/6 det./ total- 0/6 0/6 0/4 range --

.12. 28 L.T. 1. E 02 L.T. 1. E 02 L.T. 1. E 02 L.T. 1. E 02 H-3 (a) Meanistd.dev.

0/2 0/2 0/2 det./ total 0/2 - -- -- '

range --

I-131 12, 28 - Meanistd.dev. L.T. 8. E 00 'L.T. 1. E 01 L.T. 8. E 00 L.T. 2. E 01 (by ganuna det./ total 0/6 . 0/6 0/4 O/6 spectroscopy)- range --

Cs-137 12, 28 Meanistd.dev. L.T. 5. E 00 L.T. 5. E 00 L.T. 4. E 00 L.T. 5. E 00 det./ total O/6 O/6- 0/4 '0/6 range --

(a) Tritium analysis is performed on the quarterly composite of each station only.

. _ _ . . . - _ - _ _ _ _ _ _ _ - _ _ _ _ _ - . - - - _ - ,-. , , w

TADLE I-2 1993 QUARTERLY REPORT NEBRASKA PUBLIC POWER DISTRICT COOPER NUCLEAR STATION EXPOSURE PATHWAY - WATERBORNE WATER - RIVER PCI/ LITER SAMPLE STATION FIRST QUARTER SECOND QUARTER THIRD QUARTER FOURTH QUARTER NUCLIDE NUMBER 01/19-03/09 04/06-06/01 07/06-09/07 10/05-12/07 BE-7 12, 28 L.T. 4. E 01 (0/6) L.T. 4. E 01 (0/6) L.T. 3. E 01 (0/4) L.T. 4. E 01 (0/6)

K-40 12, 28 6.1313.24 E 01 (1/6) 6.6 i 2.8 E 01 (1/6) 6. 8 1 2. 6 E 01 (4/4) 7.08 i 2.80E 01 (1/6)

Mn-54 12, 28 L.T. 4. E 00 (0/6) L.T. 4. E 00 (0/6) L.T. 4. E 00 (0/4) L.T. 4. E 00 (0/6)

Co-58 12, 28 L.T. 4. E 00 (0/6) L.T. 4. E 00 (0/6) 4. E 00 (0/4)

L.T. L.T. 5. E 00 (0/6)

Fe-59 12, 28 L.T. 9. E 00 (0/6) L.T. 8. E 00 (0/6) L.T. 7. E 00 (0/4) L.T. 1. E 01 (0/6)

Co-60 12, 28 L.T. 4. E 00 (0/6) L.T. 4. E 00 (0/6) L.T. 3. E 00 (0/4) L.T. 4. E 00 (0/6)

Zn-65 12, 28 L.T. 1. E 01 (0/6) L.T. 8. E 00 (0/6) E 00 (0/4) c)

L.T. 7. L.T. 1. E 01 (0/6)

Zr-95 12, 28 L.T. 4. E 00 (0/6) L.T. 4. E 00 (0/4)

E 00 (0/6) L.T. 4. L.T. 5. E 00 (0/6)

Ru-103 12, 28 L.T. 5. E 00 (0/6) L.T. 5. E 00 (0/6) L.T. 4. E 00 (0/4) L.T. 5. E 00 (0/6)

Ru-106 12, 28 L.T. 4. E 01 (0/6) L.T. 4. E 01 (0/6) L.T. 4. E 01 (0/4) L.T. 4. E 01 (0/6)

I-131 12, 28 L.T. 8. E 00 (0/6) L.T. 1. E 01 (0/6) E 00 (0/4)

L.T. 8. L.T. 2. E 01 (0/6)

Cs-134 12, 28 L.T. 5. E 00 (0/6) L.T. 4. E 00 (0/6) E 00 (0/4)

L.T. 4. L.T. 5. E 00 (0/6)

Cs-137 12, 28 L.T. 5. E 00 (0/6) L.T. 5. E 00 (0/6) L.T. 4. E 00 (0/4) L.T. 5. E 00 (0/6)

Ba-140 12, 28 L.T. 6. E 00 (0/6) L.T. E 00 (0/6) E 00 (0/4) 1.

8. L.T. 6. L.T. E 01 (0/6)

Ce-141 12, 28 L.T. 8. E 00 (0/6) L.T. 9. E 00 (0/6) E 00 (0/4)

L.T. 6. L.T. 1. E 01 (0/6)

Ce-144 12, 28 L.T. 3. E 01 (0/6) L.T. 4. E 01 (0/6) L.T. 2. E 01 (0/4) L.T. 3. E 01 (0/4)

Ra-226 12, 28 L.T. 9. E 01 (0/6) L.T. 1. E 02 (0/6) E 01 (0/4)

L.T. 7. L.T. 1. E 02 (0/6)

Th-228 12, 28 L.T. 7. E 00 (0/6) L.T. 1. E 01 (0/6) L.T. 7. E 00 (0/4) L.T. 8. E 00 (0/6)

J. AMBIENT RADIATION - THERMOLUMINESCENT DOSIMETERS (TLDs - See Tables J-l AND J-2) ,

STATIONS 01-10. 20. 44. 56. 58. 59 66. 67. 71. 79-91. 94 Ambient radiation was monitored at 32 locations within a 10 mile radius of CNS and collected quarterly. The quarterly averages for all stations of ambient net gamma radiation ranged from 11.8 milllRoentgen/ quarter to 32.0 milliroentgen / quarter. The highest exposure during each of the four quarters was at Station 01 (0.1 mile, 225 degrees) and averaged 23.2 mR/ quarter. The lowest exposure was at Station 03 (2.5 miles,338 degrees) averaging 14.0 milliroentgen / quarter.

The radiation at station 44, (10.5 miles, 270 degrees) which is the control station, was an average of 19.4 mR/ quarter his was similar to other stations and to the average of all stations which was 17.0 mR/ quarter.

The average total exposure for the year was 67.2 mR which' is 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. . No plant effect from CNS was indicated. ,

The gamma exposures monitored ~ by thermoluminescent dosimeters from 1977 through 1993 are plotted on Figure J-1. The data from year to ,

year is in good agreement and indicates no adverse changes in radiation exposure to the population near CNS.

88

FIGURE J-1 AMBIElfr RADIATION TIIERMOLUMINESCENT DOSIMETRY QUARIERLY AVERAGE - A1.1. IDCKHONS 1000 100-en kO

@ 3 3-8-$$ -M" 'N, ,M W M-M ' N 'N M'N'$$ (C- M N Mg & M-3 g g- M 'M 2

10 g .

1977 1978 1979 1980 1981 1982 1983 1984 1985

-M- EXPOSURE PA'DIWAY - AMBIENT GAMMA RADIATION: 'II.D

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TACI.E J-1 1993 QUARTERLY REPORT NEBRASKA'PUBLIC POWER DISTRICT COOPER NUCLEAR t3TATION EXPOSURE PATHWAY - AMBIENT GutMA RADIATION: TLD mil 11 Roentgen /Qcarter ,

STATION FIRST QUARTER SECOND QUARTER THIRD QUARTER- FOURTH QUARTER SAMPLE NUCLIDE NUMBER 01/15-04/19 04/16-07/01 07/01-10/15 10/15-01/11 >

TLD (Gamma) 01 20.4 i 1.7 13.9 i 0.5 26.8 i 3.7 - 31.410.9 l

02 13.2 i 0.5 13.3 i 0.6 -13.9 1 1.1 20.1 1 0.9 t

03 12.4 i 0.4 14.2 i 0.7 12.3 i 0.6 17.0 i 1.0 i

04 14.6 i 0.4 11.9 i 0.6 13.5 i 0.7 22.2 i 1.0 05 14.2 1 0.5 12.6 i 0.5 14.1 i 1.1 23.2 i 2.1 ,

06 15.1 1 0.5 12.5 i 0.7 14.3 i 0.7 21.5 1 2.0-07 14.1 1 0.7 15.1 1 0.6- 14.9 i 0.6 21.2 1 0.7 i 25.0 1.1.1 08 14.5 1 0.7 12.6 i 0.8 16.0 1 0.7 09 16.2 i 1.5 12.0 1 0.5 .15.3 i 0.9 22.0 i 1.3 10 16.3 i 0.7 12.5 i 0.5 15.3 i 1.1 19.6 i 1.8 ua i

~

20 14.6 i 0.6 14.8 i 0.7 16.0 1 0.9- 21.2 i 2.8 44 14.6 i 0.0 14.5 i 0.6' 21.8 i 3.1 26.9 i 3.4 56 13.8 i 0.4 12.1 1 0.3 15.0 i 1.0 19.2 i 1.7 58 16.7 i 0.6 14.7 i-0.7 15.9 i 0.8 20.8 i 0.6 -

59 15.4 i 0.5 '15.0 i 1.0 16.5 i 1.1 22.8 i 1.4

~

66 16.6 1 0.9 12.7'i 0.8 17.610.8 26.3 i 1.9 67 15.3 1 0.8 13.6 i 0.2 17.8 1 0.6 22.4 i 1.6-71

12.3 1 0.3 15.5 i 1.3. 25.2 i 1.7

STA-71 was badly burned during grass fire two weeks.before collection.

. _ . _ _ _ _ _ _ _ . _ _ -._ _.__.___.__._.x____-_____._-_:m__.___.___.-_--u_____._m-___________ m- __ _ - _ _ _ _ - _ _ _ _ _ - _________.-______m__m_ ._._m_.__.__ _.m___m.._ _.

TABI.E J-1 1993 QUARTERLY REPORT NEBRASKA PUBLIC POWER DISTRICT COOPER NUCLEAR STATION EXPOSURE PATHWAY - AMBIENT GAMMA RADIATION: TLD mil 11 Roentgen / Quarter SECOND QUARTER THIRD QUARTER FOURTH QUARTER SAMPLE STATION FIRST QUARTER NUCLIDE NUMBER 01/15-04/19 04/16/93-07/01/93 07/01-10/15 10/15-01/11 14.6 i 1.3 11.8 i 0.3 15.7 i 0.5 21.3 1 1.8 TLD (Gama) 79 14.4 i 0.5 14.8 1 0.6 14.0 i 1.3 24.9 i 2.2 80 17.S 1 1.6 13.4 1 0.3 16.2 1 0.9 26.8 1 1.3 81 14.5 i 0.8 13.2 i 1.1 15.7 i 1.2 20.2 i 2.4 82 83 11.5 i 1.1 16.4 i 1.5 16.7 1 0.9 24.911.8 15.1 1 0.7 14.1 1 0.4 18.0 i 1.1 22.5 i 1.0 84 85 14.6 1 0.5 12.8 i 0.7 14.2 1 0.8 19.9 i 1.7

? 86 15.0 1 0.6 13.3 1 0.9 15.5 1 0.8 23.0 1 0.7 87 13.4 i 1.2 14.8 i 0.3 16.0 1 0.8 23.2 1 0.8 88 13.9 i 0.7 12.3 1 0.7 15.0 1 0.8 25.7 i 3.2 89 15.9 i 0.8 15.9 i 0.5 16.6 i 0.6 23.610.9 90 15.5 1 0.1 14.9 i 0.7 15.1 1 0.8 25.2 i 5.0 91 13.5 i 0.6 12.2 1 0.4 15.4 i 0.7 20.3 i 2.1 94 15.2 1 0.2 13.8 i 0.8 14.8 1 0.9 24.612.7 90.5 days 74.3 days 106 days 85 days Average / Quarter 22.912.9 mR/85 days 15.211.6 mR/90.5 days 13.611.3 mR/74.3 days 16.012.6 mR/106 days Average / Day 0.1710.02 mR/ day 0.1810.02 mR day 0.1510.02 mR day 0.2710.03 (12-20)mR/90.5 days (12-16)mR 74.3 days (12-27)mR 106 days (17-32)mR 85 days Range Det./ Total 31/31 32/32 32/32 32/32

TABLE J-2 1993 OUARTERLY REPORT NEBRASKA PUBLIC POWER DISTRICT COOPER NUCLEAR STATION EXPOSURE PATHWAY - AMBIENT GAMMA RADIATION: TLD milliroentgen / Quarter SAMPLE STATION Aver./Cuarter TOTAL mR/ year NUCLIDE NUMBER 01/15-01/11/94 TLD (Gamma) 01 23.2 i 7.8 92.9 02 15.1 i 3.3 60.5 03 '13.9 1 2.2 55.9 04 15.6 1 4.6 62.2 05 16.0 1 4.8 64.1 06 16.1 1 3.9 64.4 07 16.3 1 3.3 65.3 to Lo 08 17.0 1 5.5 68.1 09 16.4 i 4.2 65.5 10 15.9 i 2.9 63.7 20 16.7 i 3.1 66.6 44 19.4 i 6.0 77.8 56 15.0 1 3.0 60.1 58 17.0 1 2.7 68.1 59 17.4 i 3.6 69.7 66 18.3 1 5.7 73.2 67 17.3 i 3.8 69.1 71 17.8 i 6.9 53.3

TABLE J-2 1992 QUARTERLY REPORT NEBRASKA PUBLIC POWER DISTRICT COOPER NUCLEAR STATION EXPOSURE PATHWAY - AMBIENT GAMMA RADIATION: TLD milliroentgen / Quarter Aver./ Quarter TOTAL mR/ year SAMPLE STATION NUMBER 01/15-01/11/94 NUCLIDE 79 15.9 i 4.0 63.4 TLD (Gamma) 17.2 1 5.1 68.9 80 18.6 i 5.8 74.2 81 15.9 i 3.0 63.6 82 18.9 i 4.0 75.5 83 84 17.4 1 3.8 69.7 85 15.4 1 3.1 61.5 86 16.7 i 4.3 66.8 16.9 i 4.4 67.4 87 66.9 y 88 16.7 i 6.1 89 18.0 1 3.8 72.0 90 17.7 i 5.0 70.7 91 15.4 1 3.6 61.4 94 17.1 i 5.0 68.4 16.911.3 Average mR/ Quarter 67.217.1 Range (14-23) Aver. total mR year. All stations Range (53.3-92.9)

, i l

K. VEGETATION. BROADLEAF (See Tables K-1 and K-2) o STATIONS 35.44.96 Broadleaf vegetation was collected each month during the growing season, May through October. Three samples were collected each month from each station plus a quality control sample except for July when no 1 samples were collected from Station- 35. The samples were tested for I-131 by chemical separation and for gamma emitting isotope.s by high resolution spectrometry.

The naturally occurring isotopes Be-7, K-40 Ra-226 and Th-228 were detected in the samples at normal environmental levels. No I-131. was detected in any of the 57 samples. Cesium-137 was detected in four samples at an average of 0.018 pC1/gm, wet. Cesium-137 is detected in other areas of the United States and is attributed to fallout from previous atomic weapons f testing. The amounts detected are not considered to be significant. j See Figure K-1 for the levels of activities in food samples as rep-resented in broadleaf vegetation in 1993.

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TABLE K-1 1993 QUARTERLY REPORT NEBRASKA PUBLIC POWER DISTRICT COOPER NUCLEAR STATION EXPOSURE PATHWAY - INGESTION BROADLEAF TERRESTRIAL VEGETATION PCI/GM, WET SECOND QUARTER THIRD QUARTER FOURTH QUARTER SAMPLE STATION 05/18, 05/19. 06/15 07/20. 08/17, 09/28 10/19 NUCLIDE NUMBER 35,44,96 Heanistd.dev. L.T. 1. E-02 L.T. 3. E-02 L.T. 2. E-02 I-131 0/27 0/10 (by chemical det./ total 0/20 --

(separation) range 35,44,96 Meanistd.dev. 1.5 i 1.1 E 00 3.1 1 1.8 E 00 5.7 1 3.0 E 00 Be-7 27/27 10/10 det./ total 20/20 range (0.2 - 4.4) E 00 (0.78-8.28) E 00 (1.5-11) E 00 35,44,96 Meanistd.dev. 5.2 i 1.0 E 00 5.7 i 3.1 E 00 4.6 1 2.6 E 00 K-40 27/27 10/10 det./ total 20/20 range (3.6 - 7.6) E 00 (2.1-13)E 00 (1.1-10)E 00 e E-02 L.T. 2. E-02 L. T. 2. E-02

'd Co-60 35,44,96 Meanistd.dev. L. T. 2.

det./ total 0/20 0/27 0/10 range 35,44,96 Meanistd.dev. L. T. 2. E-02 L.T. 3. E-02 L. T. 2. E-02 Ru-103 0/27 0/10 det./ total 0/20 --

range 35,44,96 Meanistd.dev. L. T. 4. E-02 L.T. 1. E-01 L. T. 7. E-02 I-131 0/10 (by garnma det./ total 0/20 0/27 spectroscopy) range Meanistd.dev. L. T. 2. E-02 L.T. 2. E-02 L. T. 2. E-02 Cs-134 35,44,96 0/10 det./ total O/20 0/27 range 35,44,96 Meanistd.dev. L.T. 2. E-02 1.8 i 0.5 E-02 L. T. 2. E-02 Cs-137 4/27 0/10 det./ total 0/20 range (1. 2 -2.2 ) E-02 --

TABLE K-1 1993 QUARTERLY REPORT NEBRASKA PUBLIC POWER DISTRICT COOPER NUCLEAR STATION EXPOSURE PATHWAY - INGESTION BROADLEAF TERRESTRIAL VEGETATION PCI/GM, WET SECOND QUARTER THIRD QUARTER FOURTH QUARTER SAMPLE STATION 07/20, 08/17, 09/28 10/19 NUMBER 05/18, 05/19, 06/15 NUCLTDE L. T. 3. E-02 L. T. 5. E-02 L. T. 4. E-02 Ba-140 35,44,96 Heanistd.dev. 0/10 det./ total 0/20 0/27 range 35,44,96 Heantstd.dev. 3.1 i 1.5 E-01 4. 6 i 1.2 E-01 L. T. 5. E-01 Ra-226 2/27 0/10 det./ total 1/20 range (3.8-5.5)E-01 --

35,44,96 Meanistd.dev. 3.5 i 1.7 E-02 1.2 i 1.1 E-01 4. 6 i 1.7 E-02 Th-228 6/27 1/10 det./ total 4/20 range --

(0. 2 -2. 9) E-01 --

5 4 8 8 8 4

TABLE K-2 1993 QUARTERLY REPORT

' NEBRASKA PUBLIC POWER DISTRICT COOPER NUCLEAR STATION EXPOSURE PATHWAY - INGESTION BROADLEAF TERRESTRIAL VEGETATION'- PCI/GM, WET STATION FIRST QUARTER SECOND QUARTER . THIRD QUARTER FOURTH QUARTER i SAMPLE NUCLIDE NUMBER 05/18, 05/19, 06/15~ 07/20, 08/17, 09/28 10/19 BE-7 35,96,98 1.5 f.1.1 E 00(20/20) 3.1 1 1.8 E 00 (26/27) 5.7 i 3.0 E 00 (10/10)'

K-40 35,96,98 5.2 i 1.0 E 00(20/20) 5.7 i 3.1 E 00 (27/27) 4.6 i 2.6 E 00 (10/10)

Mn-54 35,96,98 L.T. 2. E-02 (0/20) L.T. 2. E-02 (0/27) .L.T. 2. E-02 (0/10)

Co-58 35,96,98 L.T. 2. E-02 (0/20) L.T. 2. E-02 (0/27) L.T. 2. E-02 (0/10) ,

Fe-59 35,96,98 L.T. 4. E-02 (0/20) L.T. 5. E-02 (0/27) L.T. 5. E-02 (0/10)

Co-60 '35,96,98 L.T. 2. E-02 (0/20) L.T. 2. E-02 (0/27) L.T. 2. E-02 (0/10) zn-65 35,96,98 L.T. 4. E-02 (0/20) L.T. 5. E-02 (0/27) L.T. 5. E-02 (0/10) e e

Er-95 35,96,98 L.T. 2. E-02 (0/20) L.T. 2. E-02 (0/27) L.T. 2. - E-02 (0/10)

Ru-103 35,96,98 L.T. 2. E (0/20) L.T. 3. E-02 (0/27)- .L.T. 2. E-02 (0/10)

Ru-106 -35,96,98 L.T. 1. E (0/20) L.T. 2. E-01 (0/27) L.T. -2. E-01 (0/10) ..

'l I-131 35,96,98 L.T. 4. 'E-02 (0/20) L.T. 1. E-01 (0/27) L.T. 7. E-02 (0/10) ;

Cs-134 35,96,98 L.T. 2. E-02 (0/20) . L.T. 2. E-02 (0/27) L.T. 2. E-02 . (0/10) [

Cs-137 35,96,98 L.T. 2. E-02 -(0/20) 1.8 i- 0.5 E-02 ' (4 /27) L.T. 2. E-02.. (0/10)

Ba-140 35,96,98 .L.T. 3. E-02 (0/20) L.T. 5. E-02 (0/27) L.T. 4. -E-02 (0/10) i i

Ce-141 35,96,98 L.T. 3. E-02 (0/20) L.T. 4. E-02 (0/27) L.T. 5. E-02 (0/10)

Ce-144 35,96,98 L.T. 1. E (0/20) L.T. 1. E-01 (0/27) L.T. 2. E-01. (0/10) 4.6311.2 E-01 (2/27) 35,96,98 3.1 1 1.5 E-01 (1/20) L.T. 5. 'E-01 (0/10) i Ra-226 Th-228 35,96,98 3.5 i 1.7 E-02 (4/20) 1.2 i 1.1 E-01 (6/27) ' 4.6 i i 1.7 E-02 (1/10) ;

I i

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L SHORELINE SEDIMENT STATION 28 Shoreline _ sediment. samples were collected in the spring and fall from ~

Station 28,1.8 miles,150 degrees downstream of the release point' of CNS. i They were analyzed for gamma emitters by means of a high resolution gamma j l

l spectrometer. In the-samples collected the naturally occurring isotopes Be- l 7, K-40, Ra-226 and Th-228 were detected at normal environmental levels. l Cesium-137, a fission product, was detected at an average level of 0.052 l pCi/gm, dry.

For the samples collected in the fourth quarter the naturally occurring isotopes K-40, Ra-226 and Th-228 were detected at about the same level as in the second quarter. Beryllium-7 was detected at a level of 0.26 pC1/gm dry in the second quarter and 0.63 in the fourth quarter. Manganese-54, an l activation product - was detected at a level of 0.015 pCi/gm dry in the spring.

Cerium-141 was detected in the fourth quarter sample at a level of 0.0422 pC1/gm dry. All other nuclides were below the detection limit for both the spring and fall.

Presented in Figure L-1 are the plots of the radionuclides K-40,1-131, Cs-134 and Cs-137 in shoreline sediment since .1985. No detections of I-131 nor Cs-134 were seen and K-40 was at a normal environmental level. . l' The Cs-137 was at a low level which is found in many areas and media. Since -

sediment tends to trap and retain any elements in the water pathway, it acts as a good indicator of the effects on the water pathway of any reactor -

effluents.

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TABLE L-1 1993 QUARTERLY REPORT NEBRASKA PUBLIC POWER DISTRICT COOPER NUCLEAR STATION EXPOSURE PATHWAY - AQUATIC SHORELINE SEDIMENT - PCI/GM, DRY SECOND QUARTER THIRD QUARTER FOURTH QUARTER SAMPLE STATION NUCLIDE NUMBER 05/04 10/26 28 Meanistd.dev. 2.59 i 0.68E-01 6. 2 6 1 0. 92 E-01 Be-7 1/1 det./ total 1/1 range 28 Meanistd.dev. 1.58 i 0.16E 01 1.55 1 0.15 E 01 K-40 1/1 det./tetal 1/1 range 28 Heanistd.dev. 1.54 1 0.83E-02 L.T. 1. E-02 Mn-54 det./ total 1/1 0/1 range CO-60 28 Meanistd.dev. L.T. 1. E-02 L.T. 1. E-02 det./ total 0/1 0/1 range 5 I-131 28 Meanistd.dev. L.T. 3. E-02 L.T. 4. E-02 N (by gama det./ total 0/1 0/1 spectroscopy) range --

Cs-134 28 Meanistd.dev. L.T. 1. E-02 L.T. 1. E-02 det./ total 0/1 0/1 range 28 Meanistd.dev. 4.59 i 0.76E-02 5.80 i 0.76 E-02 Cs-137 det./ total 1/1 1/1 range Ra-226 28 Meanistd.dev. 1.54 1 0.18E 00 1.77 i 0.19 E 00 det./ total 1/1 1/1 range 28 Heanistd.dev. 7.42 1 0.74E-01 1.08 1 0.11 E 00 Th-228 det./ total 1/1 1/1 range

TAQLE L-2 1993 QUARTERLY REPORT NEBRASKA PUBLIC POWER DISTRICT COOPER NUCLEAR STATION EXPOSURE PATHWAY - AQUATIC SHORELINE SEDIMENT - PCI/GM, DRY SECOND QUARTER THIRD QUARTER FOURTH QUARTER SAMPLE STATION FIRST QUARTER 05/04 10/26 NUCLIDE NUMBER 28 2.5910. 68 E-01 (1/1) 6.2610.92 E-01 (1/1)

BE-7 28 1.5810.16 E 01(1/1) 1.5510.15 E 01 (1/1)

K-40 28 1. 54 10. 83E-02 (1/1) L.T. 1. E-02 (0/1)

Mn-54 L.T. 1. E-02 (0/1) L.T. 1. E-02 (0/1)

Co-58 28 28 L.T. 2. E-02 (0/1) L.T. 3. E-02 (0/1)

Fe-59 Co-60 28 L.T. 1. E-02 (0/1) L.T. 1. E-02(0/1)

L.T. 2. C-02 (0/1) L.T. 3. E-02 (0/1)

Zn-65 28 o L.T. 1. E-02 (0/1) L.T. 2. E-02 (0/1)

'd Zr-95 28 28 L.T. 1. E-02 (0/1) L.T. 1. E-02 (0/1)

Ru-103 L.T. 8. E-02 (0/1) L.T. 1. E-01 (0/1 )

Ru-106 28 28 L.T. 3. E-02(0/1) L.T. 4. E-02 (0/1)

I-131 L.T. 1. E-02(0/1) L.T. 1. E-02 (0/1)

Cs-134 28 Cs-137 28 4.5910.76 E-02 (1/1) 5.8010.76 E-02 (1/1)

Ba-140 28 L.T. 2. E-02 (0/1) L.T. 2. E-02(0/1)

Ce-141 28 L.T. 2. E-02 (0/1) 4.2211.92 E-02 (1/1)

Ce-144 28 L.T. 8. ' E-02 (0/1) L.T. 9. E-02 (0/1)

Ra-226 28 1.5410.18 E 00(1/1) 1.7710.19 E 00 (1/1)

Th-228 28 7.4210.74 E-01(1/1) 1.0810.11 E 00 (1/1)

SECTION VII COMPLETE DATA TABIES -

l l

i I

T 104

t I

I l

A, B, C.

GROSS ALPHA, GROSS BETA I-131 STATIONS 01-10 l

l l

I 1

l l

I e

l l

1 1

e 6

105

NEBRASKA PUBLIC POWER DISTRICT COOPER NUCLEAR STATION EXPOSURE PATHWAY - AIRBORNE AIR PARTICULATE f CHARCOAL FILTERS STATION NUMBER 01 STATION 01 - 0.1 HI. 225 DEG. IND.

AP FILTER AP FILTER MID-COUNT CHARCOAL FILTER COLL. TIME TIME I-131 GROSS BETA GROSS ALPHA START STOP DATE TIME (PCI/CU. M.)

DATE DATE VOLUME UNITS (PCI/CU.M.) (PCI /CU . M . )

1.01E 04 3.8 i 0.4 E-02 3.5 i 1.7 E-03 01/09 L.T. 2. E-02 12/29 01/05 CU. FT.

5.2 i 1.9 E-03 01/19 L.T. 5. E-02 01/05 01/12 1.02E 04 CU. FT. 4.0 1 0.4 E-02 9.94E 03 5.6 i 0.4 E-02 5.4 i 2.2 E-03 01/22 L.T. 2. E-02 01/12 01/19 CU. FT.

L.T. 2. E-03 01/30 L.T. 2. E-02 01/19 01/26 1.02E 04 CU. FT. 2.2 1 0.3 E-02 9.92E 03 CU. FT. 2.3 i 0.3 E-02 1. 9 i 1. 3 E-03 02/06 L.T. 2. E-02 01/26 02/02 02/02 02/09 1.04E 04 CU. FT. 3.1 i O.3 E-02 2.4 i 1.5 E-03 02/12 L.T. 2. E-02 3.0 i 0.3 E-02 2.2 i 1.5 E-03 02/20 L.T. 2. E-02 02/09 02/16 9.95E 03 CU. FT.

3. 6 i 1. 8 E-03 02/26 L.T. 3. E-02 02/16 02/23 1.00E 04 CU. FT. 3.7 i 0.4 E-02 02/23 03/02 1.01E 04 CU. FT. 3.0 1 0.3 E-02 3.1 i 1.5 E-03 03/06 L.T. 3. E-02 03/02 03/09 1.01E 04 CU. FT. 2.7 1 0.3 E-02 L.T. 2. E-03 03/13 L.T. 3. E-02 1.01E 04 1.7 1 0.3 E-02 L.T. 2. E-03 03/20 L.T. 2. E-02 03/09 03/16 CU. FT.

E-03 03/26 E-02 03/16 03/23 1.02E 04 CU. FT. 2. 2 1 0.3 E-02 1. 9 i 1. 3 L.T. 2.

9.44E 03 1.3 i 0.3 E-02 L.T. 2. E-03 04/04 L.T. 4. E-02 03/23 03/30 CU. FT.

1.5 i 1.3 E-03 04/13 L.T. 5. E-02 03/30 04/06 1.00E 04 CU. FT. 1.3 1 0.2 E-02 1.01E 04 CU. FT. 1.3 i 0.2 E-02 2.2 i 1.3 E-03 04/18 L.T. 2. E-02

$ 04/06 04/13 1.00E 04 CU. FT. 1.0 1 0.2 E-02 2. 5 i 1. 5 E-03 04/25 L.T. 2. E-02 cn 04/13 04/20 04/20 04/28 1.14E 04 CU. FT. 2.0 1 0.3 E-02 2. 6 i 1.3 E-03 05/04 L.T. 4. E-02 04/28 05/04 8.74E 03 CU. FT. 1. 4 1 0. 3 E-02 1. 7 i 1. 3 E-03 05/09 L.T. 2. E-02 1.00E 04 1.5 i 0.3 E-02 L.T. 2. E-03 05/16 L.T. 2. E-02 05/04 05/11 CU. FT.

2.3 i 1.4 E-03 05/26 L.T. 4. E-02 05/11 05/18 1.02E 04 CU. FT. 2.2 i 0.3 E-02 05/18 05/25 9.96E 03 CU. FT. 1.4 i O.2 E-02 1. 9 i 1. 4 E-03 06/02 L.T. 3. E-02 1.01E 04 1.4 i 0.2 E-02 L.T. 1. E-03 06/08 L.T. 4. E-02 05/25 06/01 CU. FT.

L.T. E-03 06/15 L.T. 3. E-02 06/01 06/08 1.01E 04 CU. FT. 1.1 1 0.2 E-02 2.

06/08 06/15 1.01E 04 CU. FT. 1.8 i 0.3 E-02 2.2 i 1.4 E-03 06/22 L.T. 5. E-02 06/15 06/22 9.94E 03 CU. FT. 1.5 i 0.3 E-02 L.T. 2. E-03 06/28 L.T. 3. E-02 06/22 06/29 1.01E 04 CU. FT. 1.4 i 0.2 E-02 L.T. 2. E-03 07/07 L.T. 3. E-02 06/29 07/06 1.01E 04 CU. FT. 1.7 i 0.3 E-02 3.3 i 1.5 E-03 07/10 L.T. 2. E-02 07/06 07/13 9.97E 03 CU. FT. 1.3 1 0.3 E-02 1. 9 i 1. 5 E-03 07/17 L.T. 2. E-02 07/13 07/20 1.01E 04 CU. FT. 1.4 i 0.3 E-02 L.T. 2. E-03 07/25 L.T. 3. E-02 07/20 07/28 1.19E 04 CU. FT. 1.3 i 0.2 E-02 L.T. 1. E-03 08/03 L.T. 3. E-02 07/28 08/03 8.40E 03 CU. FT. 1.7 i 0.3 E-02 L.T. 2. E-03 08/07 L.T. 2. E-02 08/03 08/10 1.02E 04 CU. FT. 2.2 1 0.3 E-02 2.1 i 1.5 E-03 08/15 L.T. 1. E-02 08/10 08/17 9.92E 03 CU. FT. 1.2 1 0.3 E-02 L.T. 2. E-03 08/21 L.T. 2. E-02 08/17 08/25 1.15E 04 CU. FT. 1.9 i 0.3 E-02 2.911.4 E-03 08/29 L.T. 2. E-02 08/25 08/31 8.91E 03 CU. FT. 2.5 1 0.4 E-02 1.4 i 1.2 E-03 09/05 L.T. 4. E-02 08/31 09/07 9.90E03 CU. FT. 2.0 1 0.3 E-02 2.0 i 1.2 E-03 09/17 L.T. 3. E-02 09/07 09/14 1.05E 04 CU. ET. 1.7 i 0.3 E-02 L.T. 1. E-03 09/18 L.T. 2. E-02 09/14 09/22 1.15E 04 CU. FT. 1.7 1 0.3 E-02 1.9 1.3 E-03 09/29 L.T. 4. E-02 09/22 09/28 8.42E 03 CU. FT. 2.4 i 0.3 E-02 3.9 i 2.0 E-03 10/04 L.T. 5. E-02 09/28 10/06 1.13E 04 CU. FT. 2.1 i O.3 E-02 1. 8 i 1.1 E-03 10/13 L.T. 2. E-02

-. i . .

?

NEBRASKA PUBLIC POWER DISTRICT i COOPER NUCLEAR STATION EXPOSURE PATHWAY - AIRBORNE AIR PARTICULATE & CHARCOAL FILTERS STATION NUMBER 01 STATION 01 - 0.1 MI. 225 DEG. IND.

COLL. TIME AP FILTER AP FILTER MID-COUNT CHARCOAL FILTER START STOP GROSS BETA GROSS ALPHA TIME I-131 DATE DATE VOLUME UNITS (PCI/CU .M. ) (PCI/CU.M.) ~DATE TIME (PCI/CU.-M.)

10/06 10/13 1.01E 04 CU. FT. 2. 9 1 0. 3 E-02 3.5 i 1.5 E-03 10/18 L.T. 3. E-02 [

10/13 10/19 8.68E 03 CU. FT. 3.6 1 0.4 E-02 2.4 i 1.6 E-03 10/24 L.T. 1. E-02 10/19 10/26 1.04E 04 CU. FT. 2.1 1 0.3 E-02 -2.7 1 1.5 E-03 11/01 L.T. 3. E-02 10/26 11/02 9.77E 03 CU. FT. 2.610.3 E-02 2. 2 i 1.3 - E 11/07 L.T. 3. E-02 i 11/02 11/10 1.14E 04 CU. FT. 2.5 1 0.3 E-02 2. 8 i 1.5 E-03 11/14 L.T. 2. E-02 i 11/10 11/16 9.08E 03 CU. FT. 3.0 1 0.4 E-02 2.2 i 1.5 E-03 11/23 L.T. 2. E-02 l 11/16 11/24 1.11E 04 CU. FT. 3.0 1 0. 3 . E-02 - 2. 6 i 1. 4 E-03 12/02 L.T. 3. E-02 #

11/24 11/30 8.78E 03 CU. FT. 3.1 1 0.4 E-02 2.5 i 1.7 E-03 '12/07 L.T. 4. E-02 I 11/30 12/07 1.01E 04 CU. FT. 4.1 1 0.4 E-02 3.0 i 1.5 E-03 12/12 L.T. 3. E-02 [

12/21 4. E-02 12/07 12/14 1.04E 04 CU. FT. 3.1 1 0.3 E 5.0 1 1.7' E-03 L.T.

w 12/14 12/20 8.23E 03 CU. FT. 2.8 1 0.4 E-02_ 1.7 i 1.3 E-03 12/28 L.T. ' 6. E-02 1.00E 04 CU. FT. 2.6 i O.3 E-02 L.T. 2. E-03 01/05 L.T. 5. E-02

$ 12/20 12/28 i

1 i

t 6

^ _ . _ _ _ _ _ _ _ _ . - _ _ _ _ . _ _ _ _ _ _ _ - -

4 NEBRASEA PUBLIC PoerER DISTRICT COOPER NUCLEAR STATION EXPOSURE PATHWAY - AIRBORNE AIR FARTICULATE E CHARCOAL FILTERS STATION NUMBER 02 STATION 02 - 0.15 MI. 225 DEG. IND.

AP FILTER AP FILTER HID-COUNT CHARCOAL FILTER COLL. TIME TIME I-131 GROSS BETA GROSS ALPHA START STOP TIME' (PCI/CU. M,)

DATE DATE VOLUME UNITS (PCI/CU.M.) (PCI/CU.M.) DATE 12/29 01/05 1.01E 04 CU. FT. 3. 5 i 0. 3 ' E-02 4.3 i 1.8 E-03 01/09 L.T. 2. E-02 01/05 01/12 1.03E 04 CU. FT. 4.0 1 0.4 E-02 4.5 i 1.8 E-03 01/19 L.T. 5. E-02 9.89E 03 5.3 1 0.4 E-02 3.9 i 1.9 E-03 01/22 L.T. 2. E-02 01/12 01/19 CD. FT.

L.T. 2. 'E-03 01/30 L.T. 2. E-02 01/19 01/26 1.02E 04 CU. FT. 1.7 1 0.3 E-02 f 01/26 02/02 9.88E 03 CU. FT. 2.2 i 0.3 E-02 1.7 i l'.2 E-03 02/06 L.T. 2. E-02 02/02 02/09 1.03E 04 CU. FT. 2.9 i 0.3 E-02 2.6 i 1.5 E-03 02/12 L.T. 2. E-02 02/09 02/16 9.97E 03 CU. FT. 3.2 i 0.3 E-02 3.2 i 1.7 E-03 02/20 L.T. 2. E-02 02/16 02/23 9.98E 03 CU, FT. 3.4 i 0.4 E-02 3.4 i 1.8 E-03 02/26 L.T. 3. E-02 -

02/23 03/02 1.01E 04 CU. FT. 3.0 1 0.3 E-02 3.2 i 1.5 E-03 03/06 L.T. 3. E !

1.01E 04 2.4 i 0.3 E-02 L.T. 2. E-03 03/13- .L.T. 3. E-02 03/02 03/09 CU. FT.

L.T. 2. E-03 03/20 L.T. 2. E-02 03/09 03/16 1.01E 04 CU. FT. 1.5 i 0.3 E-02 03/16 03/23 1.02E 04 CU. FT. 1.8 i 0.3 E L.T. 1. E-03 03/26 L.T. 2. E-02 03/23 03/30 9.97E 03 CU. FT. 1.5 i 0.3 E-02 2.4 i 1.6 E-03 04/04 L.T. 3. E-02

- 03/30 04/06 1.01E 04 CU. FT. 1.4 i 0.2 E-02 L.T. 1. E-03 04/13 L.T. 5. E-02 -

@ 04,06 04/13 1.02E 04 CU. FT. 1.1 1 0.2 E 2.0 i 1.3 E-03 04/18 L.T. 2. E-02 C4/13 04/20 1.00E 04- CU. FT. 1.3 i 0.3 E-02 2.911.6 E-03 04/25 L.T. 2. E f 04/20 04/27 9.88E 03 CU. FT. 1.9 i 0.3 E-02 3.0 1 1.5 E-03 05/04 L.T. 5. E-02 04/27 05/04 1.01E 04 CU. FT. 1.2 i 0.2 E-02 1.9 1 1.2 E-03 05/09 L.T. 2. E-02 05/04 05/11 1.01E 04 CU. FT. 1.5 i 0.3 E-02 L.T. 2. E-03 05/16 L.T. 2. E-02 05/11 05/18 1.02E 04 CU. FT. 1.9 i 0.3 E-02 2.4 i 1.4 E-03 05/26 L.T. 4. E-02 05/18 05/25 9.91E-03 CU. FT. 1.5 1.0.2 E-02 1.9 i 1.4 E-03 06/02 L.T. 3. E-02 05/25 06/01 1.01E 04 CU. FT. 1.5 i 0.3 E-02 ' 1.7 i 1.3 E-03 06/08 L.T. 4. E-02 06/01 06/08 1.02E 04 CD. FT. 7.7 i 2.2 E-03 L.T. 2. E-03 06/15 L.T. 3. E-02 06/08 06/15 1.04E 04 CU. FT. 1.8 i 0.3 E-02 L.T. 1. E-03 06/22. L.T. 5. E-02 06/15 06/22 9.59E 03 CU. FT. 1.4 i 0.3 E-02 L.T. 2. E-03 06/28 L.T. 3. E-02 06/22 06/29 1.02E 04 CU. FT. 1.5 i 0.3 E-02 L.T. 2. E-03 '07/07 L.T. 3. E-02 06/29 07/06- 1.01E 04 CU. FT. 1.8 i 0.3 E-02 3.0 i 1.4 E-03 07/10 L.T. 2. E-02 07/06 07/13 9.94E 03 CU. FT. 1.5 i 0.3 E-02 L.T. 2. E-03 07/17 L.T. 2. E-02 l 07/13 07/20 1.01E 04 CU.'FT. 1.7 1 0.3 E-02 L.T. 2. E-03 07/25 L.T. 3. E-02 07/20 07/28' 07/28 08/03*

07/20 08/10 3.05E 04 C1. FT. '1.8 i 0.1 E-02 2.0 1 0.7 E-03 08/15 L.T. 9. E-03 08/10 08/17 1.02E 04 CU. FT. 2.2 i 0.3 E-02 2.2 1 1.5 - E-03 08/21 L.T. 2. E-02 08/17 08/24 -9.88E 03- CU. FT. 1.9 i 0.3 E-02 2.2 i 1.4 E-03 08/29 -L.T. 3. E-02 08/24 08/31 1.02E 04- CU. FT. 2.3 i 0.3 ' E-02 L.T. 1. -E-03 09/05 L.T. 3. E-02 08/31 09/07 9.89E03 CU. FT. 1. 9 i O ' 3 E-02

. 3.2 i 1.5 E-03 09/17 L.T.'3. E-02 09/07 09/14' 1.02E 04 CU. FT. 2.1 i O.3 E-02 L.T. 1. E-03 09/18 L.T. 2. E-02 l 09/14 09/22 1.18E 04 CU. FT. 1.5'i 0.2 E-02 L.T. 1. E-03 09/29 L.T . 4. E-02 09/24 U9/29 5.81E 03 CU. FT. 2.1 1 0.4 E-02 L.T. z 3. E-03 10/04 L.T. 8. E-02

]

9

Sample Not Collected -- Flood Missouri River.

NEBRASKA PUBLIC POWER DISTRICT COOPER NUCLEAR STATION EXPOSURE PATHWAY - AIRBORNE AIR PARTICULATE & CHARCOAL FILTERS STATION NUMBER 02 STATION 02 - 0.75 Mt. 225 DEG. IND.

AP FILTER AP FILTER MID-COUNT CHARCOAL FILTER COLL. TIME GROSS BETA GROSS ALPHA TIME I-131 START STOP DATE DATE VOLtNE UNITS (PCI/CU.M.) (PCf/CU.M.) DATE TIME (PCI/CU. M.)

09/28 10/05 9.80E 03 CU. FT. 2.2 1,0.3 E-02 3.2 i 1.5 E-03 10/13 L.T. 3. E-02 10/06 10/13 1.14E 04 CU. FT. 3.0 i O.3 E-02 3.0 i 1.3 E-03 10/18 L.T. 1. E-02 10/13 10/19 9.16E 03 CU. FT. 2,910.4 E-02 3. 6 i 1.7 E-03 10/24 L.T. 2. E-02 10/19 10/26 9.55E 03 CU. FT. 2.2 1 0.3 E-02 2.1 i 1.4 E-03 11/01 L.T. 4. E-02 10/26 11/02 1.03E 04 CU. FT. 1.7 i 0.3 E-02 2.1 1 1.3 E-03 11/07 L.T. 3. E-02 11/02 11/10 1.00E 04 CU. FT. 2.2 1 0.3 E-02 3.2 i 1.7 E-03 11/14 L.T. 2. E-02 11/09 11/16 9.80E 03 CU. FT. 2. 9 i 0. 4 E-02 L.T. 2. E-03 11/21 L.T. 1. E-02 11/16 11/23 1.05E 04 CU. FT. 3. 3 1 0. 3 E-02 2.5 i 1.5 E-03 12/02 L.T. 3. E-02 11/23 11/30 1.00E 04 CU. FT. 2. 6 i 0.3 E-02 1. 9 i 1. 4 E-03 12/07 L.T. 3. E-02 11/30 12/07 1.00E 04 CU. FT. 3.610.4 E-02 1.7 1 1.3 E-03 12/12 L.T. 3. E-02 12/07 12/14 9.81E 03 CU. FT. 3.4 i 0.4 E-02 4.2 1 1.7 E-03 12/21 L.T. 4. E-02 12/14 12/21 1.02E 04 CU. FT. 2.3 1 0.3 E-02 2.8 i 1.4 E-03 12/28 L.T. 5. E-02 12/21 12/28 7.51E 03 CU. FT. 3.9 i 0. 4 E-02 L.T. 2. E-03 01/05 L.T. 6. E-02 e*

O c

NEBRASKA PUBLIC PCWER DISTRICT COOPER NUCLEAR STATION EXPOSURE PATHWAY - AIRBORNE AIR PARTICULATE & CHARCOAL FILTERS STATION NUMBER 03 STATION 03 - 2.5 MI. 338 DEG. IND.

AP FILTER AP FILTER MID-COUNT CHARCOAL FILTER COLL. TIME GROSS ALPHA TIME I-131 START STOP GROSS BETA UNITS (PCT /CU.M.) (PCI/CU.M.) DATE TIME (PCI/CU. M.)

DATE DATE VOLUME 1.02E 04 3.7 i 0.4 E-02 3.9 i 1.7 E-03 01/09 L.T. 2. E-02 12/29 01/05 CU. FT.

5.1 1 1.7 E-03 01/19 L.T. 4. E-02 01/05 01/13 1.14E 04 CU. FT. 5.7 1 0.4 E-02 7.84E 03 CU. FT. 5.6 i 0.5 E-02 5.7 i 2.6 E-03 01/22 L.T. 3. E-02 01/13 01/19 01/30 L.T. E-02 1.9 i 0.3 E-02 L.T. 2. E-03 2.

01/19 01/26 9.47E 03 CU. FT.

L.T. 1. E-03 02/06 L.T. 2. E-02 01/26 02/02 9.88E 03 CU. FT. 1.9 1 0.3 E-02 02/02 02/09 1.04E 04 CU. FT. 2.9 i O.3 E-02 5.1 1 1.9 E-03 02/12 L.T. 2. E-02 2.9 i 0.3 E-02 2.7 i 1.7 E-03 02/20 L.T. 2. E-02 02/09 02/16 9.01E 03 CU. FT.

2.9 i 1.7 E-03 02/26 L.T. 4. E-02 02/16 02/23 9.76E 03 CU. FT. 3.2 i O.4 E-02 1.08E 04 CU, FT. 3.0 1 0.3 E-02 3.7 i 1.5 E-03 03/06 L.T. 3. E-02 02/23 03/02 03/13 L.T. 3. E-02 03/03 03/09 9.03E 03 CU. FT. 2.8 i 0.3 E-02 L.T. 2. E-03 03/09 03/16 1.00E 04 CU. FT. 1.5 i 0.3 E-02 L.T. 2. E-03 03/20 L.T. 2. E-02 1.02E 04 2.0 1 0.3 E-02 L.T. 1. E-03 03/26 L.T. 2. E-02 03/16 03/23 CU. FT.

L.T. 2. E-03 04/04 L.T. 3. E-02 03/23 03/30 1.01E 04 CU. FT. 1.4 i 0.2 E-02 1.01E 04 1.4 i 0.2 E-02 L.T. 1. E-03 04/13 L.T. 5. E-02 03/30 04/06 CU. FT.

1.8 1 1.2 E-03 04/18 L.T. 2. E-02 ca 04/06 04/13 1.01E 04 CU. FT. 1.2 i 0.2 E-02 9.88E 03 CU. FT. 1.4 i O.3 E-02 5.0 1 2.0 E-03 04/25 L.T. 2. E-02

$ 04/13 04/20 04/27 04/20 9.93E 03 CU. FT. 2.3 i 0.3 E-02 5.8 i 2.0 E-03 05/04 L.T. 5. E-02 1.04E 04 CU. FT. 1.6 i 0.3 E-02 1.9 i 1.2 E-03 05/09 L.T. 1. E-02 04/27 05/04 E-Oi 05/04 05/11 9.98E 03 CU. FT. 1.7 i 0.3 E-02 L.T. 2. E-03 05/16 L.T. 2.

05/11 05/19 1.13E 04 CU. FT . 1.8 i 0.3 E-02 2.5 i 1.3 E-03 05/26 L.T. 4. E-02 1.5 i 0.3 E-02 L.T. 2. E-03 06/02 L.T. 3. E-02 05/19 05/25 8.96E 03 CU. FT.

L.T. 2. E-03 06/08 L.T. 4. E-02 05/25 06/01 1.00E 04 CU. FT. 1.5 1 0.3 E-02 1.02E 04 CU. FT. 1.2 i 0.2 E-02 L.T. 2. E-03 06/15 L.T. 3. E-02 06/01 06/08 5. E-02 06/08 06/15 9.78E 03 CU. FT. 1.9 i 0.3 E-02 2.8 i 1.5 E-03 06/22 L.T.

1.2 i 0.2 E-02 L.T. 2. E-03 06/28 L.T. 3. E-02 06/15 06/22 1.01E 04 CU. FT.

2.0 i 1.5 E-03 07/07 L.T. 2. E-02 06/22 06/29 1.03E 04 CU. FT. 1.2 1 0.2 E-02 1.02E 04 CU. FT. 1.6 i 0.3 E-02 2.8 i 1.4 E-03 07/10 L.T. 2. E-02 06/29 07/06 07/06 07/13*

07/13 07/20*

07/20 07/28*

07/28 08/03*

08/03 08/10*

08/10 08/17*

08/17 08/24*

08/24 08/31*

08/31 09/07*

09/07 09/14*

09/14 09/22*

Flood -- Sample not collected.

NEBRASKA PUBLIC POWER DISTRICT COOPER NUCLEAR STATION EXPOSURE PATHWAY - AIRBORNE AIR PARTICULATE & CHARCOAL FILTERS STATION NUMBER 03 STATION 03 - 2.5 MI. 338 DEG. IND.

AP FILTER AP FILTER MID-COUNT CHARCOAL FILTER COLL. TIME TIME I-131 GROSS BETA GROSS ALPHA START STOP DATE TIME (PCI/CU. M.)

DATE DATE VOLUME UNITS (PCI/CU.M.) (PCI/CU.M.)

09/24 09/28*

09/28 10/05*

10/05 10/13*

10/13 10/19*

10/19 10/26*

10/26 11/02*

11/02 11/10*

11/09 11/16* 12/02 4. E-02 2.3 1 0.4 E-02 L.T. 2. E-03 L.T.

11/17 11/23 8.39E 03 CU. FT.

L.T. 2. E-03 12/07 L.T. 3. E-02 11/23 11/30 1.02E 04 CU. FT. 2.8 i 0.3 E-02 1.02E 04 CU. FT. 3.6 1 0.4 E-02 3. 6 i 1. 6 E-03 12/12 L.T. 3. E-02 11/30 12/07 12/21 E-02 12/07 12/14 9.83E 03 CU. FT. 2. 9 i 0.3 E-02 3.4 i 1.5 E-03 L.T. 4.

1.02E 04 CU. FT. 2.7 1 0.3 E-02 2.0 1 1.2 E-03 12/28 L.T. 5. E-02 12/14 12/21 12/21 12/28 1.01E 04 CU. FT. 2. 4 i 0.3 E-02 L.T. 2. E-03 01/05 L.T. 4. E-02

Flood -- Sample not collected.

i l

i

NEBRASKA PUBLIC POWER DISTRICT COOPER NUCLEAR STATION EXPOSURE PATHWAY - AIRBORNE AIR PARTICULATE & CHARCOAL FILTERS STATION NUMBER 04 STATION 04 - 3.0 MI. 43 DEC. IND.

AP FILTER AP FILTER MID-COUNT CHABCOAL FILTER COLL. TIME GROSS BETA GROSS ALPHA TIME I-131 START STOP TIME (PCI/CU. M.)

DATE DATE VOLUME UNITS (PCI/CU.M.) (PCI/CU.M.) DATE 1.00E 04 3.8 1 0.4 E-02 2. 9 i 1. 6 E-03 01/09 L.T. 2. E-02 12/29 01/05 CU. FT.

3.1 1 1.4 E-03 01/19 L.T. 4. E-02 01/05 01/13 1.16E 04 CU. FT. 4.0 1 0.4 E-02 01/13 01/19 8.65E 03 CU. FT. 5.4 i 0.5 E-02 8.1 1 2.7 E-03 01/22 L.T. 3. E-02 01/19 01/26 1.01E 04 CU. FT. 1.8 i 0.3 E-02 L.T. 2. E-03 01/30 L.T. 2. E-02 1.00E 04 2.1 1 1.3 E-03 02/06 L.T. 2. E-02 01/26 02/02 CU. FT. 1. 9 i 0. 3 E-02 2.2 i 1.5 E-03 02/12 L.T. 2. E-02 02/02 02/09 1.02E 04 CU. FT. 2. 5 1 0. 3 E-02 02/09 02/16 9.99E 03 CU. FT. 3.0 i O.3 E-02 2.5 i 1.6 E-03 02/20 L.T. 2. E-02 1.01E 04 3.0 1 0.3 E-02 3.7 i 1.8 E-03 02/26 L.T. 3. E-02 02/16 02/23 CU. FT.

3.1 1 1.5 E-03 03/06 L.T. 3. E-02 02/23 03/02 1.01E 04 CU. FT. 3.3 1 0.3 E-02 03/02 03/09 1.00E 04 CU. FT. 2.4 1 0.3 E-02 3.0 i 1.7 E-03 03/13 L.T. 3. E-02 C 03/09 03/16 1.01E 04 CU. FT. 1.5 i O.3 E-02 L.T. 2. E-03 03/20 L.T. 2. E-02 N 03/16 03/23 1.02E 04 CU. FT. 1.8 i 0.3 E-02 1.5 i 1.2 E-03 03/26 L.T. 2. E-02 1.00E 04 1.3 i 0.2 E-02 L.T. 2. E-03 04/04 L.T. 3. E-02 03/23 03/30 CU. FT.

1.5 i 1.2 E-03 04/13 L.T. 5. E-02 03/30 04/06 1.01E 04 CU. FT. 1.3 1 0.2 E-02 04/06 04/13 1.00E 04 CU. FT. 1.1 1 0.2 E-02 3. 6 i 1. 6 E-03 04/18 L.T. 2. E-02 04/13 04/20 9.98E 03 CU. FT. 8.3 1 2.4 E-03 2.2 i 1.5 E-03 04/25 L.T. 2. E-02 04/20 04/27 9.98E 03 CU. FT. 2.2 i 0.3 E-02 3.7 1 1.7 E-03 05/04 L.T. 5. E-02 04/27 05/04 1.02E 04 CU. FT. 1.6 i O.3 E-02 1.3 i 1.1 E-03 05/09 L.T. 1. E-02 05/04 05/11 1.00E 04 CU. FT. 1. 6 i 0. 3 E-02 L.T. 2. E-03 05/16 L.T. 2. E-02 05/11 05/19 1.13E 04 CU. FT. 1.5 1 0.3 E-02 1. 6 i 1.1 E-03 05/26 L.T. 4. E-02 05/19 05/25 8.93E 03 CU. FT. 1.5 i 0.3 E-02 L.T. 2. E-03 06/02 L.T. 3. E-02 05/25 06/01 1.00E 04 CU. FT. 1. 5 i 0.3 E-02 L.T. 2. E-03 06/08 L.T. 4. E-02 06/01 06/09 1.02E 04 CU. FT. 1.6 i 0.3 E-02 3. 5 i 1. 8 E-03 06/15 L.T. 3. E-02 06/08 06/15 9.84E 03 CU. FT. 2.1 1 0.3 E-02 4. 9 i 1. 9 E-03 06/22 L.T. 5. E-02 06/15 06/22 1.00E 04 CU. FT. 1. 6 1 0. 3 E-02 3.4 i 1.8 E-03 06/28 L.T. 3. E-02 06/22 06/29 1.03E 04 CU. FT. 1.5 i 0.3 E-02 L.T. 2. E-03 07/07 L.T. 2. E-02 06/29 07/06 1.00E 04 CU. FT. 1.9 1 0.3 E-02 3.3 i 1.5 E-03 07/10 L.T. 2. E-02 07/06 07/13 9.80E 03 CU. FT. 1.5 i 0.3 E-02 L.T. 2. E-03 07/17 L.T. 2. E-02 07/13 07/20 1.00E 04 CU. FT. 1. 5 i 0.3 E-02 L.T. 2. E-03 07/25 L.T. 3. E-02 07/20 07/28*

07/28 08/03*

08/03 08/10*

08/10 08/17*

08/17 08/24*

08/24 08/31*

08/31 09/07*

09/07 09/14*

09/14 09/22*

Sarrple Not Collected -- Flood Missouri River.

WEBRASKA PUBLIC POWER DISTRICT COOPER NUCLEAR STATION EXPOSURE PATHWAY - AIRBORNE AIR PARTICULATE & CHARCOAL FILTERS STATION NLHBER 04 STATION 04 - 3.0 MI. 4 3 DEC. IND.

AP FILTER AP FILTER MID-COUNT CHARCOAL FILTER COLL. TIME I-131 GROSS BETA GROSS ALPHA TIME START STOP DATE TIME (PCI/CO. M.)

DATE DATE VOLUME UNITS (PCf/CU.M.) (PCI/CU.M.)

09/24 09/28*

09/28 10/05*

10/05 10/13*

10/13 10/19*

10/19 10/26*

10/26 11/02*

11/02 11/10* 1. 9 i 1. 6 E-03 11/23 L.T. 2. E-02 11/10 11/16 8.37E 03 CU. FT. 3.9 i 0.4 E-02 1.03E 04 3.8 1 0.4 E-02 2.5 i 1.5 E-03 12/02 L.T. 3. E-02 11/16 11/23 CU. FT.

E-03 12/07 L.T. 3. E-02 11/23 12/01 1.11E 04 CU. FT. 4.410.4 E-02 3.0 i 1.5 8.93E 03 5. 5 1 0.5 E-02 4.0 1 1.9 E-03 12/12 L.T. 3. E-02 12/01 12/07 CU. FT.

6.012.0 E-03 12/21 L.T. 4. E-02 12/07 12/14 9.84E 03 CU. FT. 4.8 i 0.4 E-02 1.02E 04 CU. FT. 4.010.4 E-02 2.7 i 1.3 E-03 12/28 L.T. 5. E-02 12/14 12/21 E-02 12/21 12/28 1.01E 04 CU. FT. 4.2 1 0.4 E-02 1.7 i 1.4 E-03 01/05 L.T. 4.

"

Flood -- Sample not collected.

w

NEBRASKA PUBLIC POWER DISTRICT COOPER NUCLEAR STATION EXPOSURE PATHWAY - AIRBORNE AIR PARTICULATE & CHARCOAL FILTERS STATION NUMBER 05 STATION 05 - 3.5 MI. 102 DEG. IND.

CO L.L . TIME AP FILTER AP FILTER MID-COUNT CHARCOAL FILTER START STOP GROSS BETA GROSS ALPHA TIME I-131 DATE DATE VOLUME UNITS (PCI/CU.M.) (PCI/CU.M.) DATE T I M!" (PCI/CU, M.)

12/29 01/05 1.00E 04 CU. FT. 3.6 i O.4 E-02 2.5 i 1.5 E-03 01/09 L.T. 1. E-02 01/05 01/13 1.16E 04 CU. FT. 4.2 1 0.4 E-02 4.4 i 1.6 E-03 01/19 L.T. 3. E-02 01/13 01/19 8.65E 03 CU. FT. 4.2 1 0.4 E-02 L.T. 2. E-03 01/22 L.T. 2. E-02 01/19 01/26 1.01E 04 CU. FT. 2.0 1 0.3 E-02 2.2 1 1.6 E-03 01/30 L.T. 1. E-02 01/26 02/02 1.00E 04 CU. FT. 2.3 1 0.3 E-02 1.3 i 1.2 E-03 02/06 L.T. 1. E-02 02/02 02/09 1.02E 04 CU. FT. 3.1 1 0.3 E-02 2.9 1 1.6 E-03 02/12 L.T. 2. E-02 02/09 02/16 9.99E 03 CU. FT. 3.5 i 0.3 E-02 2. 3 i 1.5 E-03 02/20 L.T. 1. E-02 02/16 02/23 1.01E 04 CU. FT. 2.9 i 0.3 E-02 3.7 1 1.8 E-03 02/26 L.T. 2. E-02 02/23 03/02 1.01E 04 CU. FT. 3.3 1 0.3 E-02 2. 5 i 1. 3 E-03 03/06 L.T. 2. E-02 03/02 03/09 1.00E 04 CU. FT. 2.7 1 0.3 E-02 L.T. 2. E-03 03/13 L.T. 2. E-02 03/09 03/16 1.01E 04 CU. FT. 1.5 1 0.3 E-02 L.T. 2. E-03 03/20 L.T. 1. E-02 03/16 03/23 1.02E 04 CU. FT. 2.0 1 0.3 E-02 L.T. 1. E-03 03/26 L.T. 1. E-02 03/23 03/30 1.00E 04 CU. FT. 1.1 1 0.2 E-02 L.T. 2. E-03 04/04 L.T. 2. E-02

[4 03/30 04/06 1.01E 04 CU. FT. 1.4 1 0.2 E-02 2 . 9 i 1. 6 E-03 04/13 L.T. 3. E-02 04/06 04/13 1.01E 04 CU. FT. 8.2 i 2.2 E-03 2.2 i 1.3 E-03 04/18 L.T. 1. E-02 04/13 04/20 9.96E 03 CU. FT. 1.1 1 0.3 E-02 L.T. 2. E-03 04/25 L.T. 1. E-02 04/20 04/27 9.97E 03 CU. FT. 2.3 1 0.3 E-02 3.7 i 1.7 E-03 05/04 L.T. 3. E-02 04/27 05/04 1.02E 04 CU. FT. 1.2 i 0.2 E-02 2.2 1 1.3 E-03 05/09 L.T. 1. E-02 05/04 05/11 1.00E 04 CU. FT. 1.5 i 0.3 E-02 L.T. 2. E-03 05/16 L.T. 1. E-02 05/11 05/19 1.13E 04 CU. FT. 1.6 i 0.3 E-02 L.T. 1. E-03 05/26 L.T. 2. E-02 05/19 05/25 8.96E 03 CU. FT. 1.6 1 0.3 E-02 2.0 i 1.5 E-03 06/02 L.T. 2. E-02 05/25 06/01 1.00E 04 CU. FT. 1.4 i 0.2 E-02 1.9 i 1.4 E-03 06/08 L.T. 2. E-02 06/01 06/08 1.02E 04 CU. ET. 1.0 i 0.2 E-02 L.T. 2. E-03 06/15 L.T. 2. E-02 06/08 06/15 9.84E 03 CU. FT. 1.8 i 0.3 E-02 3.2 i 1.6 E-03 06/22 L.T. 3. E-02 06/15 06/22 1.00E 04 CU. FT. 1.5 i 0.3 E-02 L.T. 2. E-03 06/28 L.T. 2. E-02 06/22 06/29 9.69E 03 CU. FT. 1.4 1 0.3 E-02 L.T. 2. E-03 07/07 L.T. 2. E-02 06/29 07/06 1.00E 04 CU. FT. 1.7 i 0.3 E-02 1.9 i 1.2 E-03 07/10 L.T. 1. E-02 07/06 07/13 9.91E 03 CU. FT. 1.4 i 0.3 E-02 L.T. 2. E-03 07/17 L.T. 2. E-02 07/13 07/20 1.00E 04 CU. FT. 1.3 i 0.2 E-02 L.T. 2. E-03 07/25 L.T. 3. E-02 07/20 07/28*

07/28 08/03*

08/03 08/10*

08/10 08/17*

08/17 08/24*

08/24 08/31*

08/31 09/07*

09/07 09/14' 09/14 09/22*

09/24 09/28*

Sample Not Collected -- Flood Missouri River.

l NEBRASKA PUBLIC POWER DISTRICT COOPER NUCLEAR STATION EXPOSURE PATHWAY - AIRBORNE AIR PARTICULATE E CHARCOAL FILTERS STATION NUMBER 05 STATION 05 - 3.5 MI. 102 DEC. IND.

AP FILTER AP FILTER MID-COUNT CHARCOAL FILTER COLL. TIME CROSS BETA CROSS ALPHA TIME I-131 START STOP DATE TIME (PCI/CU. M.)

DATE DATE VOLLNE UNITS (PCI/CU.M.) (PCI/CU.M.)

09/28 10/05*

10/05 10/13*

10/13 10/19*

10/19 10/26*

10/26 11/02*

11/02 11/10*

11/09 11/16*

11/16 11/23*

11/23 12/01*

12/01 12/07*

12/07 12/14*

12/14 12/21*

12/21 12/28*

Flood -- Sample not collected.

U1

NEBRASKA PUBLIC POWER DISTRICT COGPER NUCLEAR STATION EXPOSUPE FATHWAY - AIRBORNE AIR PARTICULATE & CHARCOAL FILTERS STATION NUMBER 06 STATION 06 - 3.0 MI. 165 DEG. IND.

AP FILTER AP FILTER MID-COUNT CHARCOAL FILTER COLL. TIME GROSS BETA GROSS ALPHA TIME I-131 START STCP LATE TIME (PCI/CU. M.)

DATE DATE VOLUME LNITS (PCI/CU.M.) (PCI/CU.M.)

12/29 01/05 1.01E 04 CU. FT. 3.5 i 0.3 E-02 1.8 i 1.4 E-03 01/09 L.T. 2. E-02 01/05 01/13 1.16E 04 CU. ET. 4.6 i O.4 E-02 3.1 1 1.4 E-03 01/20 L.T. 2. E-02 01/13 01/19 8.35E 03 CU. FT. 5.3 1 0.5 E-02 4.6 i 2.3 E-03 01/22 L.T. 2. E-02 01/19 01/26 1.01E 04 CU. FT. 2.0 i 0.3 E-02 L.T. 2. E-03 01/30 L.T. 2. E-02 01/26 02/02 1.00E 04 CU. FT. 2.8 i 0.3 E-02 L.T. 1. E-03 02/06 L.T. 2. E-02 1.02E 04 CU. FT. 3.0 i 0.3 E-02 2.5 i 1.5 E-03 02/13 L.T. 2. E-02 02/02 02/09 02/09 02/16 1.00E 04 CU. FT. 3.4 i O.3 E-02 4.2 i 1.9 E-03 02/20 L.T. 2. E-02 02/16 02/23 9.22E 03 CU. FT. 3.4 i 0.4 E-02 3.7 i 1.9 E-03 02/26 L.T. 2. E-02 02/23 03/02 1.01E 04 CU. FT. 3.2 1 0.3 E-02 4.6 i 1.7 E-03 03/06 L.T. 2. E-02 03/02 03/09 1.01E 04 CU. FT. 2.5 i 0.3 E-02 L.T. 2. E-03 03/13 L.T. 2. E-02 1.00E 04 CU. FT. 1.6 i 0.3 E-02 L.T. 2. E-03 03/20 L.T. 2. E-02 03/09 03/16 03/16 03/23 9.65E 03 CU. FT. 2.1 1 0.3 E-02 1.2 i 1.1 E-03 03/26 L.T. 2. E-02 03/23 03/30 1.00E 04 CU. FT. 1.5 i 0.3 E-02 L.T. 2. E-03 04/04 L.T. 2. E-02 03/30 04/06 1.01E 04 CU. FT. 1.3 i 0.2 E 1.9 i 1.3 E-03 04/13 L.T. 4. E-02 04/06 04/13 1.00E 04 CU. FT. 1.0 i 0.2 E-02 1.3 i 1.2 E-03 04/19 L.T. 4. E-02 04/13 04/20 9.96E 03 CU. FT. 1.1 1 0.3 E-02 L.T. 2. E-03 04/25 L.T. 2. E-02 g 04/20 04/27 1.00E 04 CU. FT. 2.3 1 0.3 E-02 3.1 1 1.5 E-03 05/04 L.T. 2. E-02 04/27 05/04 1.02E 04 CU. FT. 1.3 1 0.2 E-02 1.9 i 1.2 E-03 05/09 L.T. 2. E-02 05/04 05/11 9.31E 03 CU. FT. 1.3 i 0.3 E-02 L.T. 2. E-03 05/16 L.T. 2. E-02 05/11 05/19 1.12E 04 CU. FT. 1.8 i 0.3 E-02 2.1 i 1.2 E-03 05/26 L.T. 5. E-02 05/19 05/25 9.01E 03 CU. ET. 1.5 1 0.3 E-02 1.6 i 1.4 E-03 06/02 L.T. 3. E-02 05/25 06/01 1.00E 04 CU. FT. 1.5 1 0.3 E-02 1.6 i 1.3 E-03 06/08 L.T. 5. E-02 06/01 06/08 1.02E 04 CU. FT. 1.3 i 0.3 E-02 L.T. 2. E-03 06/15 L.T. 2. E-02 06/08 06/15 9.83E 03 CU. FT. 1.9 i 0.3 E-02 L.T. 1. E-03 06/22 L.T. 3. E-02 06/15 06/22 1.00E 04 CU. FT. 1.6 1 0.3 E-02 2.4 i 1.6 E-03 06/28 L.T. 2. E-02 06/22 06/29 1.04E 04 CU. FT. 1.2 1 0.2 E-02 1.9 i 1.5 E-03 07/07 L.T. 3. E-02 06/29 07/06 1.00E 04 CU. FT. 2.2 i 0.3 E-02 2.5 i 1.3 E-03 07/10 L.T. 2. E-02 07/06 07/13 9.88E 03 CU. FT. 1.1 i 0.2 E-02 2.0 i 1.6 E-03 07/17 L.T. 2. E-02 07/13 07/20 1.00E 04 CU. FT. 1.5 i 0.3 E-02 L.T. 2. E-03 07/25 L.T. 2. E-02 07/20 07/28*

07/28 08/03*

08/03 08/10*

08/10 08/17*

08/17 08/24*

08/24 08/31* ~

08/31 09/07*

09/07 09/14*

09/14 09/22*

09/24 09/20*

sample Not Collected -- Flood Missouri River.

NEBRASKA PUBLIC POWER DISTRICT COOPER NUCLEAR STATION EXPOSURE PATHWAY - AIRBORNE AIR PARTICULATE & CHARCOAL FILTERS STATION NLHBER C6 STATION 06 - 3.0 MI. 165 DEG. IND.

AP FILTER AP FILTER MID-COUNT CHARCOAL FILTER COLL. TIME START STOP CROSS BETA GROSS ALPHA TIME I-131 DATE DATE VOLLwE UNITS (PCI/CU.M.) (PCT /CU.M.) DATE TIME (PCI/CU. M.)

09/28 10/05*

10/05 10/13*

10/13 10/19*

10/19 10/26*

10/26 11/02*

11/02 11/10*

11/10 11/16 8.48E 03 CU. FT. 2.7 i 0.4 E-02 L.T. 2. E-03 11/20 L.T. 2. E-02 1.03E 04 CU. FT. 3.2 1 0.3 E-02 L.T. 2. E-03 12/02 L.T. 4. E-02 11/16 11/23 11/23 12/01 1.11E 04 CU. FT. 2.610.3 E-02 1. 6 i 1. 2 E-03 12/07 L.T. 4. E-02 12/01 12/07 8.93E 03 CU. FT. 3.5 i 0.4 E-02 L.T. 2. E-03 12/13 L.T. 3. E-02 12/07 12/14 9.85E 03 CU. FT. 3.3 1 0.4 E-02 4.1 i 1.6 E-03 12/21 L.T. 3. E-02 12/14 12/21 1.02E 04 CU. FT. 3.2 i 0.4 E-02 3. 7 i 1. 3 E-03 12/29 L.T. 4. E-02 12/21 12/28 1.01E 04 CU. FT. 2.6 i 0.3 E-02 2.4 i 1.5 E-03 01/05 L.T. 2. E-02

Flood -- Sample not collected.

e-*

i NEBRASEA PUBLIC POWER DISTRICT COOPER NUCLEAR STATION EXPOSURE PATHWAT - AIRBORNE l i

AIR PARTICULATE & CHARCOAL FILTERS STATION NUMBER 07 i

STATION 07 - 2.5 MI. 230 DEG. IND.

AP FILTER AP FILTER HID-COUNT ' CHARCOAL FILTER COLL. TIME TIME I-131 GROSS BETA CROSS ALPHA START STOP DATE -TIME (PCI/CU. M.)

DATE DATE VOLUME UNITS iPCT/CU.M.) (PCI/CU.M.)

12/29 01/05 1.01E 04 CU. FT. 3.1 1 0.3 E-02 2. 0 i 1. 4 E-03 01/09 L.T. 2. E-02 i 01/05 01/12 1.03E 04 CU. FT. 4.8 i 0.4 E-02 4. 9 i 1. 8 E-03 01/20 .L.T. 2. E-02 E-02 i

01/12 01/19 8.23E 03 CU. FT. 7.2 1 0.5 E-02 6.7 i 2.6 E-03 01/22 L.T. 2. ;

01/19 01/26 1.05E 04 CU. FT. 2.1 1 0.3 E-02 L.T. -2. E-03 01/30 L.T. 2. E-02 01/26 02/02 9.56E 03 CU. FT. 2.4 i 0.3 E-02 2.011.4 E-03 02/06 L.T. 2. E-02 1.04E 04' 3.5 i 0.3 E-02 24911.6 E-03 02/13 L.T. 2. E-02 4

02/02 02/09 CU. FT.

E-03 02/20 E-02 02/09 02/16 9.97E 03 CU. FT. 3. 6 1 0. 4 E-02 1.7 i 1.4 L.T. 2. .s' 02/16 02/23 9.98E 03 CU. FT. 3.2 1 0.3 E-02 3.1 1 1.8 E-03 02/26 L.T. 2. E-02 02/23 03/02 1.01E 04 CU. FT. 3.7 i 0.4 E-02 5.0 1 1.8 E-03 03/06 L.T. 2. -E-02 r 03/02 03/09 1.01E 04 CU. FT. 2.610.3 E-02 2.1 1 1.6 E-03 03/13 L.T. 2. E-02 03/09 -03/16 1.01E 04 CU. FT. 1.6 1 0.3 E-02 1. 8 i 1. 5 E-03 03/20 L.T. 2. E-02 <

03/16 03/23 1.02E 04 CU. FT. 2.5 i O.3 E-02 L.T. 1. E-03 03/26 L.T. 2. E-02 03/23 03/30 9.97E 03 CU. FT. 1.7 i 0.3 E-02 L.T. 2. E-03 04/04 L.T. 2. E-02 03/30 04/06 1.00E 04 CU. FT. 1.6 t 0.3 E-02 3.3 i 1.6 E-03 04/13 L.T. 4. E-02 04/06 04/13 1.02E 04 CU. FT. 1.5 i 0.3 E-02 2.911.5 E-03 04/19 L.T. 4. E-02 04/13 04/2d 1.00E 04 CU. FT. 1.1 1 0.3 E-02 2.2 i 1.5 E-03 04/25 L.T. 2. E-02

- 04/20 04/27 1.03E 04 CU. FT. 2.2 i 0.3 E-02 4.0 i 1.7 E-03 05/04 L.T. 2. E-02 1.40E 03 0.2110.13 E-02 L.T. 0.7 E-03 05/09 L.T. 1. E-02

$ 04/27 05/04* CU. FT. 1 05/04 05/11**

05/11 05/19**

05/18 05/25**

05/25 06/01**

06/07 06/08***

l 06/08 06/15 1.04E 04 CU. FT. 2.1 i 0.3 E-02 '2.4 i 1.4 E-03 06/22 L.T. 3. E-02 ;

06/15 06/22 9.62E 03 CU. FT. 2.3 1 0.3 E-02 2.3 i 1.7 E-03 06/28 L.T. 2. E 4 06/22 06/29 1.00E 04 CU. FT. 2.01 0.3 E-02 2.8 i 1.7 E-03 07/07 L.T. 3. E-02 06/29 07/06 1.01E 04 CU. FT. 2.8 i 0.3 E-02 3.7 i 1.6 E-03 07/10 L.T. 2. E-02 07/06 07/13 9.94E 03 CU.-FT. 2.0 i O.3 E-02 2.1 i 1.6 E-03 07/17 L.T. 2. E-02 07/13 07/20 1.01E 04 CU. FT. 2.1.1 0.3 E-02 2.2 i 1. 6 E-03 07/25 L.T. 2. E-02 t 07/20 07/27 1.00E 04 CD. FT. 2.0 1 0.3 E-02 2.7 1 1.6 E-03 08/03 L.T. 4. E-02 07/27 08/03 1.02E 04 CU. FT. 2.4 1 0.3 E-02 1. 9 i 1. 3 E-03 08/07 L.T. 1. E-02 08/03 08/10 9.91E 03 CU. FT. 2.6 i 0.3 E-02 3.2 i 1.7 E-03 08/15 L.T. 2. E-02 08/10 08/17 1.01E 04 CU. FT. 3.5 i 0.4 E-02 1. 8 i 1. 4 -E-03 08/21 L.T. 3. E-02 08/17 08/24 1.04E 04 CU. FT. 3.0 1 0.3 E-02 2.8 i 1.5 E-03 08/29 L.T. 3. E-02 08/24 08/31 9.76E 03 CU. FT. 2.7 i O.4 E-02 2.1 i 1.3 E-03 09/05 L.T. 3. E-02 08/31 09/07 9.89E 03 CU. FT. 2. 3 1 0.3 E-02 2.811.4. E-03 09/17 L.T. 3. E-02 l 09/07 09/14' 1.02E 04 CU. FT. 2.7 i 0.3 E-02 -4.1 i 1.7 E-03 09/18 L.T. 2. E-02 09/14 09/22 1.18E 04 CU. FT. 2.4 i 0.3 E-02 3. 6 i 1. 6 E-03 09/29 L.T. 4. E-02

Not included in average (electrical problem) .

- Sample not collected.

- - Not included in average.(low air volume).

s . . . . r

. _ _ _ . . _ _ _ __________.___________..__t

NEBRASIUL PUBLIC POWER DISTRICT COOPER NUCLEAR STATION EXPOSURL PATHWAY - AIRBORNE AIR PARTICULATE & CHARCOAL FILTERS STATION NUMBER 07 STATION 07 - 2.5 MI. 230 DEG. IND.

AP FILTER AP FILTER MID-COUNT CHARCOAL FILTER COLL. TIME CROSS BETA CROSS ALPHA TIME I-131 START STOP DATE TIME (PCI/CU. M.)

DATE DATE VOLUME UNITS (PCI/CU.M.) (PC1/CU.M.)

8.59E 03 CU. FT. 2. 4 1 0. 3 E-02 3. 5 i 1. 9 E-03 10/04 L.T. 5. E-02 09/22 09/28 10/13 3. E-02 09/28 10/05 9.57E 03 CU. FT. 3.5 i 0.4 E-02 3.5 i 1. 6 E-03 L.T.

10/05 10/13 1.12E 04 CU. FT. 3.7 i 0.3 E-02 3.1 1 1.3 E-03 10/18 L.T. 3. E-02 10/13 10/19 9.14E 03 CU. FT. 5.2 i O.5 E-02 L.T. 2. E-03 10/24 L.T. 2. E-02 9.57E 03 CU. FT. 2.3 i 0.3 E-02 3.0 i 1.6 E-03 11/01 L.T. 4. E-02 10/19 10/26 3. E-02 10/26 11/02 1.05E 04 CU. FT. 1.2 i 0.2 E-02 2.2 i 1.3 E-03 11/07 L.T.

11/02 11/10 1.01E 04 CU. FT. 1.9 i 0.3 E-02 L.T. 2. E-03 11/14 L.T. 2. E-02 9.80E 03 CU. FT. 1.7 1 0.3 E-02 1. 6 i 1.3 E-03 11/20 L.T. 1. E-02 11/09 11/16 12/02 11/16 11/23 1.04E 04 CU. FT. 1.3 i 0.3 E-02 L.T. 2. E-03 L.T. 4. E-02 11/23 12/01*

12/01 12/07*

12/07 12/14*

12/14 12/21* 4.

12/21 12/28 9.99E 03 CU. FT. 2. 6 i 0. 3 E-02 1.7 i 1.4 E-03 01/05 L.T. E-02

Sample not collected. Station not running.

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NEBRASKA PUBLIC POWER DISTRICT COOPER NUCLEAR STATION EXPOSURE PATHWM - AIRBORNE AIR PARTICULATE & CHARCOAL FILTERS STATION NUMBER 08 STATION 08 - 2.5 MI. 260 DEG. IND.

AP FILTER AP FILTER MID-COUNT CHARCOAL FILTER COLL. TIME GROSS BETA GROSS ALPHA TIME I-131 START STOP DATE DATE VOLUME UNITS (PCI/CU.M.) (PCf/CU.M.) DATE TIME (PCI/CU. M.)

12/29 01/05 1.04E 04 CU. FT. 3.0 1 0.3 E-02 2.8 i 1.5 E-03 01/09 L.T. 2. E-02 01/05 01/13 1.14E 04 CU. FT. 4.0 1 0. 4 E-02 3.1 1 1.4 E-03 01/2'3 L.T. 2. E-02 01/13 01/19 4.65E 03 CU. FT. 0.7 i 0.8 E-02 6.7 i 3.9 E-03 01/22 L.T. 3. E-02 01/19 01/26 1.04E 04 CU. FT. 1.9 i O.3 E-02 L.T. 2. E-03 01/30 L.T. 2. E-02 01/26 02/02 9.73E 03 CU. FT. 2.1 i O.3 E-02 L.T. 1. E-03 02/06 L.T. 2. E-02 02/02 02/09 1.03E 04 CU. FT. 3. 0 1 0. 3 E-02 2.711.6 E-03 02/13 L.T. 2. E-02 02/09 02/16 9.97E 03 CU. FT. 3. 0 1 0. 3 E-02 3.2 1 1.7 E-03 02/20 L.T. 2. E-02 02/16 02/23 1.00E 04 CU. FT. 3.4 i O.4 E-02 L.T. 2. E-03 02/26 L.T. 2. E-02 02/23 03/02 1.01E 04 CU. FT. 3.5 1 0.4 E-02 2.6 i 1.4 E-03 03/06 L.T. 2. E-02 03/02 03/09 1.01E 04 CU. FT. 2. 2 1 0. 3 E-02 L.T. 2. E-03 03/13 L.T. 2. E-02 03/09 03/16 1.01E 04 CU. FT. 2.7 i 0.4 E-02 2.0 i 1.5 E-03 03/20 L.T. 2. E-02 03/16 03/23 1.03E 04 CU. FT. 3.1 1 0.4 E-02 2.6 i 1.4 E-03 03/26 L.T. 2. E-02 03/23 03/30 8.19E 03 CU. FT. 1.3 i 0.3 E-02 L.T. 2. E-03 04/04 L.T. 3. E-02 03/30 04/06 1.01E 04 CU. FT. 1.6 i 0.3 E-02 L.T. 1. E-03 04/13 L.T. 4. E-02 04/06 04/13 1.01E 04 CU. FT. 1.1 1 0.2 E-02 3.1 i 1.5 E-03 04/19 L.T. 4. E-02 04/13 04/20 9.94E 03 CU. FT. 1.0 i 0.2 E-02 L.T. 2. E-03 04/25 L.T. 2. E-02

-. 04/20 04/27 1.03E 04 CU. FT. 2.1 1 0.3 E-02 2. 6 i 1. 4 E-03 05/04 L.T. 2. E-02 9.95E 03 CU. FT. 1. 4 i O.3 E-02 3.1 i 1.5 E-03 05/09 L.T. 2. E-02

@ 04/27 05/04 1.00E 04 L.T. 2. E-03 05/16 L.T. 2. E-02 05/04 05/11 CU. FT. 1.5 i 0. 3 E-02 E-03 05/26 L.T. 5. E-02 05/11 05/18 1.04E 04 CU. FT. 1.5 1 0.3 E-02 L.T. 1.

05/18 05/25 9.77E 03 CU. FT. 1.7 i 0.3 E-02 1. 5 i 1. 3 E-03 06/02 L.T. 3. E-02 05/25 06/01 1.01E 04 CU. FT. 1.0 i 0.3 E-02 2.3 i 1.5 E-03 06/08 L.T. 5. E-02 06/01 06/08 1.03E 04 CU. FT. 1.1 1 0.2 E-02 L.T. 2. E-03 06/15 L.T. 2. E-02 06/08 06/15 1.01E 04 CU. FT. 1.8 1 0.3 E-02 3.2 i 1.6 E-03 06/22 L.T. 3. E-02 06/15 06/22 9.75E 03 CU. FT. 1.3 1 0. 3 E-02 L.T. 2. E-03 06/28 L.T. 2. E-02 06/22 06/29 1.04E 04 CU. FT. 0.9110.21 E-02 L.T. 2. E-03 07/07 L.T. 3. E-02 06/29 07/06 1.02E 04 CU. FT. 1.3 1 0.2 E-02 2.1 i 1.2 E-03 07/10 L.T. 1. E-02 07/06 07/13 9.73E 03 CU. FT. 0. 6 1 0. 2 E-02 L.T. 2. E-03 07/17 L.T. 2. E-02 07/13 07/20 1.01E 04 CU. FT. 9.0 1 2.2 E-03 L.T. 2. E-03 07/25 L.T. 2. E-02 07/20 07/27 1.02E 04 CU. FT. 1.6 1 0.3 E -02 L.T. 2. E-03 08/03 L.T. 4. E-02 07/27 08/03 1.02E 04 CU. FT. 1.5 1 0.2 E-02 1.7 1 1.3 E-03 08/07 L.T. 1. E-02 08/03 08/10 9.97E 03 CU. FT. 1.8 i 0.3 E-02 1.9 i 1.5 E-03 08/15 L.T. 2. E-02 08/10 08/17 1.01E 04 CU. FT. 2. 2 1 0. 3 E-02 L.T. 2. E-03 08/21 L.T. 3. E-02 08/17 08/24 1.01E 04 CU. FT. 1. 9 i 0.3 E-02 L.T. 1. E-03 08/29 L.T. 3. E-02 08/24 08/31 9.91E 03 CU. FT. 2.7 i 0.4 E-02 2.1 1 1.3 E-03 09/05 L.T. 3. E-02 08/31 09/07 9.89E 03 CU. FT. 4.2 1 0.4 E-02 3.3 i 1.6 E-03 09/17 L.T. 3. E-02 09/07 09/14 1.02E 04 CU. FT. 2. 7 i 0. 3 E-02 2.6 i 1.4 E-03 09/18 L.T. 2. E-02 09/14 09/22 1.17E 04 CU. FT. 2.9 i 0.3 E-02 L.T. 2. E-03 09/29 L.T. 3. E-02 09/22 09/28 8.72E 03- CU. FT. 2.7 1 0.4 E-02 2.1 i 1.6 E-03 10/04 L.T. 3. E-02

* *

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NEBRASKA PUBLIC POWER DISTRICT COOPER NUCLEAR STATION EXPOSURE FATHWAY - AIRBORNE AIR PARTICULATE & CHARCOAL FILTERS STATION NUMBER 08 STATION 08 - 2.5 MI. 260 DEC. IND.

AP FILTER AP FILTER MID- COUNT CHARCOAL FILTER COLL. TIME START STOP CROSS BETA CROSS ALPHA TIME I-131 DATE DATE VOttMF UNITS (PCT /CU.M.) (PCI/CU.M.) DATE TIME (PCI/CU. M.)

9.72E 03 CU. FT. 3.3 1 0.4 E-02 3.7 1 1.6 E-03 10/13 L.T. 3. E-02 09/28 10/05 10/05 10/12 9.98E 03 CU. FT. 5.3 1 0.4 E-02 5.7 i 1.9 E-03 10/18 L.T. 3. E-02 10/12 10/19 1.01E 04 CU. FT. 6.2 1 0.5 E-02 6.7 1 2.1 E-03 10/24 L.T. 2. E-02 10/19 10/26 9.81E 03 CU. FT. 3.0 1 0.4 E-02 3.5 i 1.7 E-03 11/01 L.T. 4. E-02 1.03E 04 CU. FT. 1.6 i 0.3 E-02 2.611.4 E-03 11/07 L.T. 2. E-02 10/26 11/02 11/02 11/10 1.02E 04 CU. FT. 2.0 1 0.3 E-02 L.T. 2. E-03 11/15 L.T. 3. E-02 9.86E 03 CU. FT. 2.5 1 0.3 E-02 2.611.5 E-03 11/20 L.T. 1. E-02 11/09 11/16 11/16 11/23 1.03E 04 CU. FT. 2.2 1 0.3 E-02 1. 6 i 1. 3 E-03 12/02 L.T. 4. E-02 1.01E 04 CU. FT. 2.4 1 0.3 E-02 1. 6 i 1. 3 E-03 12/07 L.T. 5. E-02 11/23 11/30 11/30 12/07 9.98E 03 CU. FT. 3.9 1 0.4 E-02 2.3 i 1. 4 E-03 12/13 L.T. 3. E-02 1.01E 04 CU. FT. 2.6 1 0.3 E-02 3.7 1 1.6 E-03 12/21 L.T. 3. E-02 12/07 12/14 E-02 12/14 12/21 1.02E 04 CU. FT. 2.2 i O.3 E-02 2.111.2 E-03 12/29 L.T. 4.

12/21 12/28 9.92E 03 CU. FT. 2.4 1 0.3 E-02 L.T. 2. E-03 01/05 L.T. 4. E-02 N

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NEBRASKA PUBLIC POWER DISTRICT COOPER NUCLEAR STATION EXPOSUR$ PATHWAY - AIRBORNE AIR PARTICULATE & CHARCOAL FILTERS STATION NUMBER 09 STATION 09 - 7.25 MI. 335 DEG. IND.

AP FILTER AP FILTER MID-COUNT CHARCOAL FILTER COLL. TIME GROSS BETA GROSS ALPHA TIME I-131 START STOP DATE DATE VOLUME UNITS (PCI/CU.N.) (PCI/CU.M.) DATE TIME (PCI/CU. M.)

1.02E 04 3.8 1 0.4 E-02 2.0 i 1.4 E-03 01/09 L.T. 2. E-02 12/29 01/05 CU. FT.

4.3 1 1.6 E-03 01/20 L.T. 2. E-02 01/05 01/13 1.15E 04 CU. FT. 4.8 i 0.4 E-02 01/13 01/19 6.73E 03 CU. FT. 5.2 1 0.5 E-02 3.8 i 2.5 E-03 01/22 L.T. 2. E-02 1.01E 04 CU. FT. 1.8 i 0.3 E-02 L.T. 2. E-03 01/30 L.T. 2. E-02 01/19 01/26 2.3 i 1.4 E-03 02/06 L.T. 2. E-02 01/26 02/02 9.81E 03 CU. FT. 2.2 1 0.3 E-02 02/02 02/09 1.03E 04 CU. FT. 3.2 1 0.3 E-02 3.3 i 1.7 E-03 02/13 L.T. 2. E-02 02/09 02/16 9.97E 03 CU. FT. 2.7 i 0.3 E-02 1. 9 i 1. 5 E-03 02/20 L.T. 2. E-02 02/16 02/23 1.00E 04 CU. FT. 3.3 i 0.4 E-02 3.0 i 1.7 E-03 02/26 L.T. 2. E-02 02/23 03/02 1.02E 04 CU. FT. 3.0 1 0.3 E-02 5.1 i 1. 8 E-03 03/06 L.T. 2. E-02 03/02 03/09 1.00E 04 CU. FT. 2.9 i 0.3 E-02 L.T. 2. E-03 03/13 L.T. 2. E-02 03/09 03/16 1.00E 04 CU. FT. 1.8 i 0.3 E-02 L.T. 2. E-03 03/20 L.T. 2. E-02 03/16 03/23 1.02E 04 CU. FT. 2.1 1 0.3 E-02 1.1 i 1.1 E-03 03/26 L.T. 2. E-02 03/23 03/30 1.00E 04 CU. FT. 1.3 1 0.2 E-02 L.T. 2. E-03 04/04 L.T. 2. E-02 03/30 04/06 1.01E 04 CU. FT. 1.4 1 0.2 E-02 1. 6 i 1. 3 E-03 04/13 L.T. 4. E-02 04/06 04/13 1.01E 04 CU. FT. 1.2 i 0.2 E-02 2.4 i 1.4 E-03 04/19 L.T. 4. E-02 9.94E 03 8.4 1 2.4 E-03 E-03 04/25 L.T. 2. E-02 y 04/33 04/20 CU. ET. 1. 6 i 1. 3 E-03 05/04 L.T. 2. E-02 ru 04/20 04/27 1.02E 04 CU. FT. 1.9 i 0.3 E-02 3. 4 i 1. 6 1.2 1 0.2 E-02 1.8 1 1.2 E-03 05/09 L.T. 2. E-02 04/27 05/04 9.99E 03 CU. FT.

L.T. E-03 05/16 L.T. 2. E-02 05/04 05/11 1.00E 04 CU. FT. 1.6 i 0.3 E-02 2.

05/11 05/18 1.03E 04 CU. FT. 3.8 1 0.4 E-02 2.4 i 1.4 E-03 05/26 L.T. 5. E-02 05/18 05/25 9.81E 03 CU. FT. 1.6 1 0.3 E-02 1. 5 i 1. 3 E-03 06/02 L.T. 3. E-02 05/25 06/01 1.01E 04 CU. FT. 1.5 1 0.3 E-02 1. 9 i 1. 4 E-03 06/08 L.T. 5. E-02 06/01 06/08 1.02E 04 CU. FT. 1.3 i O.3 E-02 L.T. 2. E-03 06/15 L.T. 2. E-02 06/08 06/15 1.01E 04 CU. FT. 2.2 1 0.3 E-02 2.3 i 1.4 ;-93 06/22 L.T. 3. E-02 06/15 06/22 9.79E 03 CU. FT. 1.7 i 0.3 E-02 L.T. 2. E-03 06/28 L.T. 2. E-02 06/22 06/29 1.03E 04 CU. FT. 1.3 1 0.2 E-02 L.T. 2. E-03 07/07 L.T. 3. E-02 06/29 07/06 1.02E 04 CU. FT. 2.1 1 0.3 E-02 2. 4 i 1.3 E-03 07/10 L.T. 1. E-02 07/06 07/13 9.77E 03 CU. FT. 1.1 1 0.2 E-02 L.T. 2. E-03 07/17 L.T. 2. E-02 07/13 07/20 1.00E 04 CU. FT. 1. 6 i 0.3 E-02 2.8 i 1.8 E-03 07/25 L.T. 2. E-02 07/20 07/27 1.02E 04 CU. FT. 1.2 1 0.2 E-02 L.T. 2. E-03 08/03 L.T. 4. E-02 07/27 08/03 1.00E 04 CU. FT. 2.4 1 0.3 E-02 3.311.6 E-03 08/07 L.T. 2. E-02 08/03 08/10 1.02E 04 CU. FT. 1. 8 1 0. 3 E-02 2.4 i 1.5 E-03 08/15 L.T. 2. E-02 08/10 08/17 9.96E 03 CU. FT. 1.9 i 0.3 E-02 L.T. 2. E-03 08/21 L.T. 3. E-02 08/17 08/24 1.05E 04 'CU. FT. 2.2 i 0.3 E-02 2.0 i 1.3 E-03 08/29 L.T. 2. E-02 08/24 08/31 1.00E 04 CU. FT. 2.5 1 0.4 E-02 1.3 i 1.1 E-03 09/05 L.T. 2. E-02 08/31 09/07 9.85E 03 CU. FT. 2.910.3 E-02 3.1 1 1.6 E-03 09/17 L.T. 2. E-02 09/07 09/14 1.03E 04 CU. FT. 2.0 1 0.3 E-02 2.4 i 1.4 E-03 09/18 L.T. 2. E-02 09/14 09/22 1.17E 04 CU. FT. 1.4 0.2 E-02 L.T. 2. E-03 09/29 L.T. 3. E-02 09/22 09/28 8.69E 03 CU. FT. 2.1 1 0.3 E-02 L.T. 2. E-03 10/04 L.T. 3. E-02

, . . . . m NEBRASKA PUBLIC POWER DISTRICT COOPER NUCLEAR STATION EXPOSURE PATHWAY - AIRBORNE AIR PARTICULATE 6 CHARCOAL FILTERS STATION NUMBER 09

T+ TION 09 - 7.25 MI. 335 DEG. IND.

AP FILTER AP FILTER MID-COUNT CHARCOAL FILTER COLL. TJME CROSS BETA GROSS ALPHA TIME I-131 START STOP DATE DATF Vol!HE UNITS (PC1/CU.M.) (PCT /CU.M.) DATE TIME (PCI/CU. M.)

09/28 10/05 9.80E 03 CU. FT. 2.1 i 0.3 E-02 2.111.3 E-03 10/13 L.T. 2. E-02 10/05 10/12 1.01E 04 CU. FT. 2.9 i O.3 E-02 2.7 i 1.3 E-03 10/18 L.T. 3. E-02 10/12 10/19 1.01E 04 CU. FT. 3.4 i O.4 E-02 4.5 i 1.7 E-03 10/24 L.T. 2. E-02 10/19 10/26 9.90E 03 CU. FT. 2.0 1 0.3 E-02 1. 6 i 1. 3 E-03 11/01 L.T. 4. E-02 10/26 11/02 1.02E 04 CU. FT. 1. 8 i 0. 3 E-02 3.0 i 1.5 E-03 11/07 L.T. 2. E-02 11/02 11/10 1.03E 04 CU. FT. 2. 2 1 0. 3 E-02 1.7 i 1.4 E-03 11/15 L.T. 3. E-02 11/09 11/16 9.88E 03 CU. FT. 2.5 i 0. 3 E-02 1.7 i 1.4 E-03 11/20 L.T. 1. E-02 11/16 11/23 1.02E 04 CU. FT. 2.9 i O.3 E-02 L.T. 2. E-03 12/02 L.T. 4. E-02 11/23 11/30 1.01E 04 CU. FT. 2.610.3 E-02 L.T. 2. E-03 12/07 L.T. 5. E-02 11/30 12/07 9.94E 03 CU. FT. 3.5 i 0.4 E-02 L.T. 1. E-03 12/13 L.T. 3. E-02 12/07 12/14 1.02E 04 CU. FT. 3.0 1 0.3 E-02 4.6 i 1.7 E-03 12/21 L.T. 3. E-02 12/14 12/21 1.01E 04 CU. FT. 1. 9 i 0.3 E-02 2,7 1 1.4 E-03 12/29 L.T. 4. E-02 12/21 12/28 9.96E 03 CU. FT. 2.3 1 0.3 E-02 L.T. 2. E-03 01/05 L.T. 4. E-02 w

N W

1GBRASKA PUBLIC POWER DISTRICT COOPER NUCLEAR STATION EXPOSURE PATHWAY - AIRBORNE AIR PARTICULATE & CHARCOAL FILTERS STATION NUMBER 10 STATION 10 - 10.0 MI. 160 DEG. IND.

AP FILTER AP FILTER MID-COUNT CHARCCAL FILTER COLL. TIME GROSS ALPHA TIME I-131 GROSS BETA START STOP (PCf/CU.M.) DATE TIME #PC1/CU. P4. )

OATF DATE VOLUME UNITS (PCf/CU.M.)

3.6 1 0.4 E-02 2.0 1 1.4 E-03 01/09 L.T. 1. E-02 12/29 01/05 1.02E 04 CU. FT.

E-03 01/20 L.T. 2. E-02 1.03E 04 CU. FT. 3.7 i 0.4 E-02 4.6 i 1.8 01/05 01/12 1.2 1 0.5 E-02 01/22 L.T. 3. E-02 01/12 01/19 4.77E 03 CU. FT. 1.2 1 0.1 E-01 E-03 01/30 L.T. 1. E-02 1.04E 04 1.8 i 0.3 E-02 L.T. 2.

01/19 01/26 CU. FT.

1.5 i 1.2 E-03 02/06 L.T. 1. E-02 01/26 02/02 9.64E 03 CU. FT. 2.2 1 0.3 E-02 2.2 i 1.4 E-03 02/13 L.T. 2. E-02 02/02 02/09 1.03E 04 CU. FT. 2.8 1 0.3 E-02

1. E-02 9.97E 03 CU. FT. 3.1 1 0.3 E-02 3.5 i 1.7 E-03 02/20 L.T.

02/09 02/16 3.0 1 1.7 E-03 02/26 L.T. 2. E-02 02/16 02/23 1.00E 04 CU. FT. 3.3 1 0.4 E-02 2.9 1 0.3 E-02 3.2 1 1.5 E-03 03/06 L.T. 1. E-02 02/23 03/02 1.01E 04 CU. FT.

E-03 03/13 L.T. 1. E-02 1.01E 04 CU. FT. 2.4 1 0.3 E-02 1.9 i 1.5 03/02 03/09 L.T. 2. E-03 03/20 L.T. 1. E-02 03/09 03/16 1.01E 04 CU. FT. 1.4 i O.3 E-02 2.0 1 0.3 E-02 1.1 1 1.1 E-03 03/26 L.T. 1. E-02 03/16 03/23 1.02E 04 CU. FT.

04/04 L.T. 2. E-02 9.98E 03 1.3 i 0.2 E-02 L.T. 2. E-03 03/23 03/30 CU. FT.

1.5 i 1.3 E-03 04/13 L.T. 3. E-02 03/30 04/06 1.00E 04 CU. FT. 1.4 1 0.2 E-02

3. E-02 04/06 04/13 1.02E 04 CU. FT. 9.2 i 2.2 E-03 1.5 i 1.2 E-03 04/19 L.T.

7.5 1 2.3 E-03 L.T. 1. E-03 04/25 L.T. 1. E-02 04/13 04/20 1.02E 04 CU. FT.

05/04 E-02 1.00E 04 1.9 i 0.3 E-02 3.6 i 1.6 E-03 L.T. 2.

g 04/20 04/27 CU. FT.

3.8 i 1.6 E-03 05/09 L.T. 1. E-02 na 04/27 05/04 9.85E 03 CU. FT. 1.4 1 0.3 E-02 1.8 1 0.3 E-02 2.5 i 1.7 E-03 05/16 L.T. 2. E-02 05/04 05/11 1.00E 04 CU. FT.

5. E-02 05/11 05/18 1.02E 04 CU. FT. 1.6 i 0.3 E-02 L.T. 1. E-03 05/26 L.T.

05/18 05/25 9.86E 03 CU. FT. 1.6 1 0.3 E-02 2.0 i 1.4 E-03 06/02 L.T. 3. E-02 05/25 06/01 1.01E 04 CU. FT. 1.6 i 0.3 E-02 2.9 i 1.6 E-03 06/08 L.T. 5. E-02 1.2 i 0.2 E-02 L.T. 2. E-03 06/15 L.T. 2. E-02 06/01 06/08 1.03E 04 CU. FT.

06/08 06/15 1.02E 04 CU. FT. 1.7 1 0.3 E-02 2.0 i 1.3 E-03 06/22 L.T. 2. E-02 06/15 06/22 9.67E 03 CU. FT. 1.6 i 0.3 E-02 L.T. 2. E-03 06/28 L.T. 1. E-02 06/22 06/29 1.01E 04 CU. FT. 1.7 1 0.3 E-02 L.T. 2. E-03 07/07 L.T. 2. E-02 06/29 07/06 1.01E 04 CU. FT. 1.9 i 0.3 E-02 2.6 i 1.3 E-03 07/10 L.T. 1. E-02 07/06 07/13 9.94E 03 CU. FT. 1.3 i 0.3 E-02 L.T. 2. E-03 07/17 L.T. 2. E- 02 1.01E 04 CU. FT. 1.3 1 0.2 E-02 L.T. 2. E-03 07/25 L.T. 1. E-02 07/13 07/20 07/20 07/28 1.15E 04 CU. FT. 0.52 1.18 E-02 L.T. 1. E-03 08/03 L.T. 2. E-02 07/28 08/03 8.91E 03 CU. FT. 2. 3 i 0. 3 E-02 2.5 i 1.6 E-03 08/07 L.T. 1. E-02 08/03 08/10 9.98E 03 CU. F1. 2.4 1 0.3 E-02 3.9 i 1.8 E-03 08/15 L.T. 2. E-02 08/10 08/17 1.00E 04 CU . FT . 2.0 1 0.3 E-02 1.9 1 1.4 E-03 08/21 L.T. 3. E-02 1.04E 04 CU. FT. 2.1 1 0.3 E-02 2.0 1 1.3 E-03 08/29 L.T. 1. E-02 08/17 08/24 08/24 08/31 9.82E 03 CU. FT. 2.8 i 0.4 E-02 1.6 i 1.2 E-03 09/06 L.T. 2. E-02 08/31 09/07 9.87E 03 CU. FT. 1.7 i 0.3 E-02 4.1 i 1.7 E-03 09/17 L.T. 3. E-02 09/07 09/14 1.02E 04 CU. FT. 1.8 1 0.3 E-02 2.4 i 1.4 E-03 09/18 L.T. 1. E-02 09/14 09/22 1.18E 04 CU. FT. 1.8 1 0.3 E-02 L.T. 1. E-03 09/29 L.T. 3. E-02 09/22 09/28 8.58 E03 CU. FT. 2.0 i O.3 E-02 L.T. 2. E-03 10/04 L.T. 3. E-02

o .

NEBRURA PUBLIC POWER DISTRICT COOPER NUCLEAR STATION EXPOSURE PATHWAY - AIRBORNE AIR PARTICULATE & CHARCOAL FILTERS STATION NUMBER 10 STATION ~10 - 10.0 MI. 160 DEC. IND.

COLL. TIME AP FILTER AP FILTER MID-COUNT CHARCOAL FILTER START STOP- CROSS BETA GROSS ALPHA TIME I-131 DATE DATE VOLUME UNITS (PCi/CU M.) (PCI/CU.M.) DATE TIME (PCI/CU. M.)

09/28 10/05 9.83E 03 CU. FT. 2.4 i 0.3 E-02 3.1 1 1.5 E-03 10/13 L.T. 3. E-02 10/05 10/12 1.02E 04 CU. PT. 3.2 1 0. 3 E-02 3.4 i 1.5 E-03 10/18 L.T. 3. E-02 10/12 10/19 1.02E 04 'CU. FT. 3.610.4 E-02 3.911.6 .E-03 10/24 L.T. 1. E-02 10/19 10/26 3.61E 03 CU. FT. - 2. 4 1 0.3 E-02 3. 6 i 1. 7 E-03 11/01 L.T. 5. E-02 10/26 11/02 1.05E 04 CU. FT. 2.1 1 0. 3 E-02 2.3 1 1.3 E-03 11/07 L.T. 2. E-02 11/02 11/10 9.74E 03 CU. FT. 3.1 1 0.3 E-02 3.3 i 1.7 E-03 11/15 L.T. 3. E-02 11/09 11/16 9.87E 03 CU. FT. 2.5 i 0.3 E-02 2. 8 i 1. 6 E-03 11/20 L.T. 1..E-02 11/16 11/23 1.03E 04 CU. FT. 3.3 1 0.4 E-02 L.T. 3. E-03 12/02 L.T. 3. E-02 11/23 11/30 1.03E 04 CU. FT. 3.3 1 0.4 E-02 L.T. 3. E-03 12/07 L.T. 3. E-02 11/30 12/07 1.00E 04 CU. FT. 4.2 1 0.4 E-02 2. 8 i 1.5 E-03 12/13 L.T. 3. E-02 12/07 12/14 1.01E 04 CU. FT. 2.7 ' i 0. 3 E-02 3.0 i 1.4 E-03 12/21 -L.T. 3. E-02 12/14 12/22 1.12E 04 CU. FT. 2.4 1 0.3 E-02 2.0 i 1.1 E-03 12/29 'L.T. 4. E-02 g 12/22 12/28 8.80E 03 CU. FT. 2.5 i 0.3 E L.T. 2. E-03 01/05 L.T. 4. E-02 to un

D. QUARTERLY COMPOSITES OF AIR PARTICUIATE FILTERS STATIONS 01-10 .

A l

4 4

e e

126 l

NEBRASKA PUBLIC POWER DISTRICT COOPER NUCLEAR STATION EXPOSURE PATHWAY - AIRBORNE COMPOSITE AIR PARTICUIATE FILTERS l

(PCI/CU. M.)

STATION NUMBER 01 STATION 01 - 0.1 MI. 225 DEG. IND.

DATE COLLECTED: 12/29-03/30 03/30-06/29 06/29-09/28 09/28-12/28 GAMMA SPECTRUM ANALYSIS:

BE-7 8.0911.18 E-02 1.4410.14 E-01 1.3110.13 E-01 1.2110.13 E-01 E-02 L.T. 8. E-03 L.T. 8. E-03 L.T. 9. E-03 K-40 L.T. 2.

MN-54 L.T. 7. E-04 L.T. 5. E-04 L.T. 4. E-04 L.T. 6. E-04 CO-58 L.T. 1. E-03 L.T. 7. E-04 L.T. 5. E-04 L.T. 9. E-04 FE-59 L.T. 3. E-03 L.T. 2. E-03 L.T. 2. E-03 L.T. 2. E-03 Co-60 L.T. 7. E-04 L.T. 5. E-04 L.T. 4. E-04 L.T. 5. E-04 L.T. 2. E-03 L.T. 1. E-03 L.T. 9. E-04 L.T. 1. E-03 ZN-65 L.T. 1. E-03 L.T. 8. E-04 L.T. 5. E-04 L.T. 9. E-04 ZR-95 RU-103 L.T. 2. E-03 L.T. 1. E-03 L.T. 1. E-03 L.T. 1. E-03 RU-106 L.T. 6. E-03 L.T. 4. E-03 L.T. 3. E-03 L.T. 6. E-03 L.T. 1. E-01 L.T. 1. E-01 L.T. 8. E-02 L.T. 2. E-01

- I-131 E-04 L.T. 4. E-04 L.T. 4. E-04 L.T. 6. E-04 U CS-134 L.T. 7.

L.T. 7. E-04 L.T. 5. E-04 L.T. 3. E-04 L.T. 5. E-04 CS-137 L.T. 2. E-02 L.T. 2. E-02 L.T. 1. E-02 L.T. 2. E-02 BA-140 L.T. 2. E-03 L.T. 2. E-03 L.T. 2. E-03 L.T. 3. E-03 CE-141 CE-144 L.T. 3. E-03 L.T. 3. E-03 L.T. 2. E-03 L.T. 3. E-03 L.T. 9. E-03 L.T. 8. E-03 L.T. 7. E-03 L.T. 1. E-02 RA-226 TH-228 L.T. 9. E-04 L.T. 7. E-04 L.T. 6. E-04 L.T. 9. E-04

NEBRASKA PUBLIC POWER DISTRICT l

COOPER NUCLEAR STATION EXPOSURE PATHWAY - AIBBORNE COMPOSITE AIR PARTICULATE FILTERS (PCI/CU. M.)

STATION NUMBER 02 STATION 02 - 0.75 M1. 225 DEG. IND.

12/29-03/30 03/30-06/29 06/29-09/28 09/28-12/28 DATE COLLECTED:

GArmA SPECTRUM ANALYSIS:

BE-7 8.9111.16 E-02 1.3110.13 E-01 1.1710.12 E-01 1.2110.13 E-01 L.T. 9. E-03 1.0010.55 E-02 L.T. 2. E-02 L.T. 1. E-02 K-40 L.T. 4. E-04 L.T. 6. E-04 L.T. 6. E-04 L.T. 5. E-04 MN-54 L.T. 7. E-04 L.T. 1. E-03 L.T. 9. E-04 L.T. 7. -E-04 CO-58 L.T. 2. E-03 L.T. 3. E-03 L.T. 3. E-03 L.T. 2. E-03 FE-59 CO-60 L.T. 6. E-04 L.T. 7. E-04 L.T. 6. E-04 L.T. 5. E-04 I

L.T. 1. E-03 L.T. 2. E-03 L.T. 1. E-03 L.T. 1. E-03 ZN-65 L.T. 9. E-04 L.T. 1. E-03 L.T. 1. E-03 L.T. 1. E-03 ZR-95 L.T. 1. E-03 L.T. 2. E-03 L.T. 1. E-03 L.T. 2. E-03 RU-103 L.T. 4. E-03 L.T. 6. E-03 L.T. 5. E-03 L.T. 4. E-03 i RU-106 L.T. 9. E-02 L.T. 2. E-01 L.T. 1. E-01 L.T. 2. E-01 ,

g I-131 6 '. E-04' L.T. 6. E-04 L.T. 6. E-04 L.T. 6. E-04

$ CS-134 L.T.

CS-137 L.T. 5. E-04 L.T. 6. E-04 L.T. 6. E-04 L.T. 5. E-04 BA-140 L.T. 2. E-02 L.T. 3. E-02 L.T. 2. E-02 L.T. 3. E-02 CE-141 L.T. 3. E-03 L.T. 3. E-03 L.T. 2. E-03 L.T. 4. - E-03 CE-144 L.T. 3. E-03 L.T. 3. E-03 L.T. 3. E-03 L.T. 5. E-03 RA-226 L.T. 9. E-03 L.T. 9. -- E-03 'L.T. 8. E-03 L.T. 1. E-02 TM-226 L.T. 9. E-04 L.T. 9. E-04 L.T. 8. E-04 L.T. 1. E-03 i

t I . g

, . _ - - - _ . - _ - _ . . . _ _ _ - . - - - . - - _ - - . - - _ - - - r ,-r r - --__x , - - _ _ . - - - _ - - . _ _ _ _ _ _ _ . _ _ - . -

NIBRASKA PUBLIC POWER DISTRICT COOPER NUCLEAR STATION EXPOSURE PATHWAY - AIRBORNE COMFOSITE AIR PARTICULATE FILTERS (PCI/CU. M.)

STATION NUMBER 03 STATION 03 - 2.5 MI. 338 DEG. IND.

DATE COLLECTED: 12/29-03/30 03/30-06/29 06/29-07/06 11/17-12/28 GAMMA SPECTRUM ANALYSIS:

7.5210.99 E-02 1.3510.13 E-01 1.0910.91 E-01 1.0810.15 E-01 BE-7 2.8510.61 E-02 L.T. 8. E-03 L.T. 2. E-01 L.T. 3. E-02 K-40 MN-54 L.T. 5. E-04 L.T. 4. E-04 L.T. 7. E-03 L.T. 1. E-03 CO-58 L.T. 9. E-04 L.T. 6. E-04 L.T. 1. E-02 L.T. 2. E-03 FE-59 L.T. 3. E-03 L.T. 2. E-03 L.T. 4. E-02 L.T. 4. E-03 CO-60 L.T. 6. E-04 L.T. 4. E-04 L.T. 8. E-03 L.T. 1. E-03 ZN-65 L.T. 1. E-03 L.T. 1. E-03 L.T. 2. E-02 L.T. 3. E-03 ZR-95 L.T. 1. E-03 L.T. 7. E-04 L.T. 1. E-02 L.T. 2. E-03 L.T. 1. E-03 L.T. 1. E-03 L.T. 2. E-02 L.T. 2. E-03 RU-103

-* RU-106 L.T. 5. E-03 L.T. 3. E-03 L.T. 7. E-02 L.T. 1. E-02 ro u) I-131 L.T. 9. E-02 L.T. 1. E-01 L.T. 1. E 00 L.T. 4. E-02 CS-134 L.T. 6. E-04 L.T. 5. E-04 L.T. 8. E-03 L.T. 1. E-03 CS-137 L.T. 5. E-04 L.T. 5. E-04 L.T. 7. E-03 L.T. 1. E-03 BA-140 L.T. 2. E-02 L.T. 1. E-02 L.T. 2. E-01 L.T. 1. E-02 CE-141 L.T. 2. E-03 L.T. 2. E-03 L.T. 3. E-02 L.T. 3. E-03 CE-144 L.T. 3. E-03 L.T. 3. E-03 L.T. 3. E-02 L.T. 5. E-03 RA-226 L.T. 7. E-03 L.T. 8. E-03 L.T. 1. E-01 L.T. 2. E-02 TH-228 L.T. 7. E-04 L.T. 8. E-04 L.T. 1. E-02 L.T. 2. E-03

NEBRASKA PUBLIC POWER DISTRICT i

COOPER NUCLEAR STATION EXPOSURE PATHWAY - AIRBORNE COMPOSITE AIR PARTICULATE FILTERS (PCI/CU. M.)

! STATION NUMBER 04

' STATION 04 - 3.0 MI. 43 DEG. IND. '

i 12/29-03/30 03/30-06/29 06/29-07/20 11/10-12/28 i DATE COLLECTED:

Gale 4A SPECTRUM ANALYSIS:

BE-7 7.6511.05 E-02 1.3710.14 E-01 9. 60i3.58 E-02 1.6410.18 E-01 E-03 9.6415.31 E-03 L.T. 4. E-02 L.T. 4. E-02 K-40 L.T. 7.

L.T. 5. E-04 L.T. 5. E-04 L.T. 2. E-03 L.T. 1. E-03 MN-54

6. E-04 L.T. 9. E-04 L.T. 4. E-03 L.T. 1. E-03 Co-58 L.T.

L.T. 2. E-03 L.T. 3. E-03 L.T. 1. E-02 L.T. 5. E-03 FE-59 L.T. 6. E-04 L.T. 6. E-04 L.T. 3. E-03 L.T. 1. E-03 ,

CO-60 L.T. 1. E-03 L.T. 1. E-03 L.T. 6. E-03 L.T. 3. E-03 ZN-65

' E-04 L.T. 1. E-03 L.T. 4. E-03 L.T. 2. E-03 2R-95 L.T. 9.

1 L.T. 1. E-03 L.T. 2. E-03 L T. 6. E-03 L.T. 2. E-03 RU-103 L.T. 4. E-03 L.T. 5. E-03 L.T. 2. E-02 L.T. 1. E-02 RU-106 E-02 L.T. 2. E-01 L.T. 6. E-01 L.T. 5. E-02 e- I-131 L.T. 8.

ta L.T. 5. E-04 L.T. 6. E-04 L.T. 3. E-03 L.T. 1. E-03 i o CS-134 L.T. 5. E-04 L.T. 6. E-04 L.T. 3. E-03 L.T. 1. E-03 CS-137 i

L.T. 2. E-02 L.T. 3. E-02 L.T. 8. E-02 L.T. 1. E-02 BA-140 L.T. 2. E-03 L.T. 2. E-03 L.T. 1. E-02 L.T. 3. E-03 CE-141 CE-144 -L.T. 3. E-03 L.T. 3. E-03 L.T. 1. - E-02 L.T. 6. E-03 i L.T. 8. E-03 L.T. 7. E-03 L.T. 4. E-02 L.T.- 2. E-02 RA-226 L.T. E-03 L.T. -7. E-04 L.T. 4. E-03 L.T. 1. E-03 TH-228 1.

o I

]

s E . g 4

_ . _ _ . - . c._--- . . - _ . - . - - _ _ -- - . - . _ . _ . - - _ _ - - _ _ _ - _ - - - _ _ _ _ . _ _ _ . - - - - . ,e,

NEBRASKA PUBLIC POWER DISTRICT COOPER NUCLEAR STATION EXPOSURE PATHWAY - AIRBORNE COMPOSITE AIR PARTICUIATE FILTERS (PCI/CU. M.)

STATION NUMBER 05 STATION 05 - 3.5 MI. 102 DEG. IND.

4 DATE COLLECTED: 12/29-03/30 03/30-06/29 06/29-07/20 l GAPetA SPECTRUM ANALYSIS:

BE-7 8.3411.04 E-02 1.6410.16 E-01 8.6212.87 E-02 L.T. E-03 L.T. 9. E-03 L.T. 6. E-02 K-40 7.

L.T. 5. E-04 L.T. 6. E-04 L.T. 2. E-03 MN-54 L.T. 7. E-04 L.T. 9. E-04 L.T. 4. E-03 CO-58 L.T. 2. E-03 L.T. 3. E-03 L.T. 1. E-03 FE-59 L.T. 5. E-04 L.T. 7. .E-04 L.T. 2. E-03 CO-60 L.T. 1. E-03 L.T. 1. E-03 L.T. 6. E-03 i ZN-65 L.T. E-04 L.T. 1. E-03 L.T. 4. E-03 2R-95 9.

-L.T. 1. E-03 L.T. 2. E-03 L.T. 6. E-03 I RU-103 1

L.T. 5. E-03 L.T. 5. E-03 L.T. 2. E-02 c RU-106 w E-01 L.T. 5. E-01 c- I-131 L.T. 9. E-02 i. . T . 2.

L.T. 5. E-04 L.T. 6. E-04 L.T. 2. E-03 i CS-134 L.T. 6. E-04 L.T. 6. E-04 L.T. 2. E-03 -;

1 CS-137 L.T. E-02 L.T. 3. E-02 L.T. 8. E-02 BA-140 2.

L.T. 2 E-03 L.T. 3. E-03 L.T. ~ 8. E-03 CE-141 L.T. 3. E-03 L.T. 4. E-03' L.T. 1. E-02 CE-144 L.T. 9. E-03 L.T. 1. E L.T. 3. E-02 I RA-226 TM-228 L.T. 1. E-03 L.T. 9. E-04 L.T. 3. E-03

Missouri Flood - Sample Not Collected 4

.----_-__-a- - - - _ _ _ _ _ _ _ _ _ _ _ _ ___ __

NEBRASKA PUBLIC POWER - DISTRICT i' COOPER NUCLEAR STATION EXPOSURE PATHWAY - AIRBORNE COMPOSITE AIR PARTICULATE FILTERS 3

(PCI/CU. M.)

STATION NUMBER 06 STATION 06 - 3.0 MI. 165 DEG. IND.

DATE COLLECTED: 12/29-03/30 03/30-06/29 06/29-07/20 11/10-12/28 Gale (A SPECTRUM ANALYSIS:

BE-7 7.9310.88 E-02 1.4010.14 E-01 7.6213.41 E-02 1.2610.15 E-01 K-40 L.T. 5. E-03 L.T. 9. E-03 4.2312.21 E-02 L.T. 1. E-02 i MN-54 L.T. 5. E-04 L.T. 4. E-04 L.T. 3. E-03 L.T. 9. E-04

'CO-58 L.T. 7. E-04 L.T. 7. E-04: L.T. 4. E-03 L.T. 1. E-03 FE-59 L.T. 2. E-03 L.T. 2. E-03 L.T. 2. E-02 L.T. 2. E-03 i CO-60 L.T. 6. E-04 L.T. 5. -E-04 L.T. 3. E-03 L.T. 8. E ZN-65 L.T. 1. E-03 L.T. 9. E-04 L.T. 7. E-03 L.T. 2. E-03 ZR-95 L.T. 7. E-04 L.T. 8. E-04 L.T. 5. E-03 L.T. 1. E-03 RU-103 L.T. 9. E-04 L.T. 1. E-03' L.T. 7. E-03 L.T. 1. E-03 RU-106 L.T. 4. E-03 L.T. - 4. E-03 L.T. 3. E L.T. 7. E-03 3

l I-131 L.T. 6. .E-02 L.T. 1. .E-01 L.T. 6. E-01 L.T. 5. E-02 L.T. 4. E-04 L.T. 5. E-04 L.T. 3. E-03 L.T. 8. E-04

[" CS-134 CS-137 L.T. 4. E-04 L.T. 4. E-04 L.T. 3. E-03 L.T. 7. E-04 BA-140 L.T. 1. E-02 L.T.. 1. E-02 L.T. 1. E-01 L.T. 1. E-02 CE-141 L.T. 1. E-03 L.T. 2. E-03 L.T. -1. E-02. L.T. 3. E-03 CE-144 L.T. 2. E-03 L.T. - 3. ~E-03 L.T. 1. E-02 L.T. 5. E RA-226 L.T. 6. E-03 L.T. 9. E-03 L.T. 4. E-02 L.T. 1. E-02 TH-228 L.T. 6. E-04 L.T. 7. E-04 L.T. 4. E-03 L.T. 1. E-03 i

l i

i

_ _ _ _ _ _ _ _ _ _ _ - ___-___.__m---__m-' _ _ _ - - _ _ - w T m r __ _ __m_ _

i . . . . .

l NEBRASKA PUBLIC POWER DISTRICT

! COOPER NUCLEAR STATION EXPOSURE PATHWAY - AIRBORNE l

COMPOSITE AIR PARTICULATE FILTERS (PCI/CU. M.)

STATION NUMBER 07 STATION 07 - 2.5 MI. 230 DEG. IND.

l 12/29-03/30 03/30-06/29 06/29-09/28 09/28-12/28 DATE COLLECTED:

GAMMA SPECTRUM ANALYSIS:

BE-7 9.8410.98 E-02 2.2210.27 E-01 1.7310.17 E-01 7.6111.09 E-02 L.T. E-03 L.T. 2. E-02 L.T. 9. E-03 L.T. 2. E-02 K-40 7.

L.T. 4. E-04 L.T. 1. E-03 L.T. 5. E-04 L.T. 6. E-04 MN-54 L.T. 6. E-04 L.T. 1. E-03 L.T. 9. E-04 L.T. 9. E-04 CO-50 L.T. 1. E-03 L.T. 5. E-03 L.T. 3. E-03 L.T. 3. E-03 FE-59 L.T. 4. E-04 L.T. 1. E-03 L.T. 6. E-04 L.T. 7. E-04 CO-60 E-04 L.T. 2. E-03 L.T. 1. E-03 L.T. 2. E-03 ZN-65 L.T. 8.

L.T. E-04 L.T. 2. E-03 L.T. 9. E-04 L.T. 1. E-03 ZR-95 6.

L.T. 1. E-03 L.T. 3. E-03 L.T. 2. E-03 L.T. 2. E-03 RU-103 L.T. 4. E-03 L.T. 8. E-03 L.T. 5. E-03 L.T. 6. E-03 RU-106 L.T. 7. E-02 L.T. 3. E-01 L.T. 2. E-01 L.T. 2. E-01 I-131 L.T. E-04 L.T. 1. E-03 L.T. 5. E-04 L.T. 6. E-04 CS-134 4.

L.T. E-04 L.T. 1. E-03 L.T. 5. E-04 L.T. 5. E-04 CS-137 3.

BA-140 L.T. 7. E-03 L.T. 5. E-02 L.T. 2. E-02 L.T. 2. E-02 CE-141 L.T. 2. E-03 L.T. 8. E-03 L.T. 3. E-03 L.T. 2. E-03 L.T. 2. E-03 L.T. 1. E-02 L.T. 3. E-03 L.T. 3. E-03 CE-144 L.T. 7. E-03 L.T. 2. E-02 L.T. 1. E-02 L.T. 8. E-03 RA-226 L.T. 7. E-04 L.T. 2. E-03 L.T. 9. E-04 L.T. 8. E-04 TH-228

WERRASKA PUBLIC P0erER DISTRICT COOPER NUCLEAR STATION EXPOSURE PATHWAY - AIRBORNE -

COMPOSITE AIR PARTICULATE FILTERS (PCI/CU. M.)

STATION NUMBER 08 j STATION OB - 2.5 MI. 260 DEG. IND.

i 03/30-06/29 06/29-09/28 09/28-12/28 DATE COLLECTED: 12/29-03/30 t

GAM 1A SPECTRUM ANALYSIS:

1.2310.12 E-01 1.5210.15 E 1.1810.13 E-01 !

BE-7 9.6411.22 E-02 i E-03 L.T. 1. E-02 - L.T. 9. E-03 K-40 L.T. 1. E-02 L.T. 9.

5. E-04 L.T. 6. E-04 L.T. 5. E-04 MN-54 L.T. 6. E-04 L.T.

E-04 L.T. 8. E-04 L.T. 8. E-04 L.T. 8. E-04 f CO-58 L.T. 9.

E-03 L.T. 2. E-03 L.T. 2. E-03 L.T. 3. E-03 FE-59 L.T. 2.

E-04 L.T. 6. E-04 L.T. 5. E-04 CO-60 L.T. 6. E-04 L.T. 5.

E-03 L.T. 1. E-03 L.T. 1. E-03 L.T. 1. E-03 ZN-65 L.T. 1.

1. E-03 L.T. 8. E-04 L.T. 1. E-03 L.T. 1. E-03 ZR-95 L.T.

'L.T. 1. E-03 L.T. 1. E-03 L.T. 1. E-03 L.T. 2. E-03 RU-103 E-03 L.T. 4. E-03 L.T. 5. E-03 L.T. 6. E-03 !

RU-106 L.T. 5.

L.T. 1. E-01 L.T. 2. E-01 L.T. 1. E-01 L.T. 2. E I-131 L.T. 5. E-04 L.T. 6. E-04 L.T. 6. E-04 - L.T. 5. E CS-134 L.T. 6. E-04 L.T. 7. E-04 L.T. 5. E-04 L.T. 6. E-04 c.a CS-137 1 E-02 L.T. 2. E-02 L.T. 2. E-02 L.T. 2. E-02 !

BA-140 L.T. 2.

L.T. 3. E-03 L.T. 2. 'E-03 .L.T. 3. E-03 L.T. 3. .E-03 i CE-141 L.T. 3. E-03 L.T. 3. E-03 L.T. 4.- E-03 L'.T. 3. E-03 CE-144

.L.T. 1. E-02 L.T. 9. E-03 L.T. 1. E-02 L.T. 9. E-03 RA-226 L.T. 1. E-03 L.T. 9. E-04 L.T. 1. E-03 L.T. 9. 'E-04 TH-228 -

F r

I e

i

NEBRASKA PUBLIC POWER DISTRICT COOPER NUCLEAR STATION EXPOSURE PATHWAY - AIRBORNE COMPOSITE AIR PARTICULATE FILTERS (PCI/CU. M. )

STATION NUMBER 09 STATION 09 - 7.25 MI. 335 DEG. IND.

DATE COLLECTED: 12/29-03/30 03/30-06/29 06/29-09/28 09/28-12/28 GAMMA SPECTRUM ANALYSIS:

BE-7 8.3010.94 E-02 1.5310.15 E-01 1.3110.13 E-01 1.2010.12 E-01 K-40 L.T. 1. E-02 L.T. 8. E-03 L.T. 8. E-03 L.T. 2. E-02 MN-54 L.T. 5. E-04 L.T. 5. E-04 L.T. 4. E-04 L.T. 6. E-04 CO-58 L.T. 8. E-04 L.T. 7. E-04 L.T. 7. E-04 L.T. 1. E-03 FE-59 L.T. 2. E-03 L.T. 2. E-03 L.T. 2. E-03 L.T. 3. E-03 CO-60 L.T. 5. E-04 L.T. 4. E-04 L.T. 5. E-04 L.T. 6. E-04 ZN-65 L.T. 1. E-03 L.T. 1. E-03 L.T. 1. E-03 L.T. 2. E-03 ZR-95 L.T. 9. E-04 L.T. 9. E-04 L.T. 8. E-04 L.T. 1. E-03 RU-103 L.T. 1. E-03 L.T. 1. E-03 L.T. 1. E-03 L.T. 2. E-03 RU-106 L.T. 5. E-03 L.T. 4. E-03 L.T. 4. E-03 L.T. 5. E-03 1-131 L.T. 1. E-01 L.T. 1. E-01 L.T. 1. E-01 L.T. 2. E-01 CS-134 L.T. 6. E-04 L.T. 4. E-04 L.T. 4. E-04 L.T. 6. E-04 C CS-137 L.T. 5. E-04 L.T. 6. E-04 L.T. 4. E-04 L.T. 6. E-04 BA-140 L.T. 2. E-02 L.T. 2. E-02 L.T. 2. E-02 L.T. 2. E-02 CE-141 L.T. 2. E-03 L.T. 2. E-03 L.T. 2. E-03 L.T. 2. E-03 CE-144 L.T. 3. E-03 L.T. 3. E-03 L.T. 3. E-03 L.T. 3. E-03 RA-226 L.T. 7. E-03 L.T. 8. E-03 L.T. 8. E-03 L.T. 8. E-03 TH-228 L.T. 7. E-04 L.T. 7. E-04 L.T. 8. E-04 L.T. 8. E-04

NEBRASKA PUBLIC POWER DISTRICT COOPER NUCLEAR STATION EXPOSURE PATHWAY - AIBBORNE COMPOSITE AIR PARTICUIATE FILTERS (PCI/CU. M.)

STATION NUMBER 10 STATION 10 - 10.0 MI. 160 DEG. IND.

03/30-06/29 06/29-09/28 09/28-12/28 DATE COLLECTED: 12/29-03/30 GAMMA SPECTRUM ANALYSIS:

1.5310.15 E-01 1. 3010.15 E-01 1.3610.15 E-01 BE-7 9.7911.13 E-02 E-02 L.T. 1. E-02 L.T. 2. E-02 K-40 L.T. 2. E-02 L.T. 2.

L.T. 7. E-04 L.T. 5. E-04 L.T. 8. E-04 MN-54 L.T. 7. E-04 E-03 L.T. 1. E-03 L.T. 1. E-03 CO-58 L.T. 1. E-03 L.T. 1.

L.T. 4. E-03 L.T. 3. E-03 L.T. 4. E-03 FZ-59 L.T. 3. E-03 E-04 L.T. 5. E-04 L.T. 7. E-03 CO-60 L.T. 7. E-04 L.T. 6.

E-03 L.T. 1. E-03 L.T. 2. E-03 ZN-65 L.T. 2. E-03 L.T. 2.

E-03 L.T. 1. E-03 L.T. 1. E-03 ZR-95 L.T. 1. E-03 L.T. 1.

E-03 L.T. 2. E-03 L.T. 2. E-03 RU-103 L.T. 2. E-03 L.T. 2.

E-03 L.T. 6. E-03 L.T. 7. E-03 RU-106 L.T. 6. E-03 L.T. 6.

2. E-01 L.T. 2. E-01 L.T. 2. E-01 I-131 L.T. 1. E-01 L.T.

L.T. E-04 L.T. 5. E-04 L.T. 8. E-04 CS-134 L.T. 7. E-04 8.

E-04 L.T. 6. E-04 L.T. 6. E-04 L.T. 8. E-04 L.T. 6.

y CS-137 E-02 L.T. 3. E-02

BA-140 L.T. 2. E-02 L.T. 2. E-02 L.T. 3.

E-03 L.T. 3. E-03 L.T. 4. E-03 L.T. 4. E-03 CE-141 L.T. 2.

E-03 4. E-03 L.T. 6. E-03 L.T. 5. E-03 CE-144 L.T. 3. L.T.

E-03 L.T. 9. E-03 L.T. 1. E-02 L.T. 1. E-02 RA-226 L.T. 9.

L.T. 8. E-04 L.T. 9. E-04 L.T. 1. E-03 L.T. 1. E-03 TH-228 t . 6 4 e

4..a - -, wa..ih,

_w._;,6 i.;-. ,wy m. .w ,_

Ee FISH a

i t

i e

8 l

137

NEBRASKA PUBLIC POWER DISTRICT COOPER NUCLEAR STATION 1

EXPOSURE PATHWAY - INGESTION ,

FISH (PCI/GM WET)

STATION NUMBER 28 STATION 28 - 1.8 MI. 150 DEG. IND.

i 06/02 06/02 10/06 10/06 DATE COLLECTED: FISH-CATFISH FISH-CARP FISH-CARP QA FISH-CARP RADIOCHEMICAL ANALYSIS:

5.510.3 E 00 5.1 1 0.3 E 00 4.9 i 0.2 E 00 6.0 1 0.3 E 00 GR-B E-03 E-03 SR-89 L.T. 4. E-03 L.T. 6. E-03 L.T. 4. L.T. 5.

6.8 i 1.1 E-03 8.2 1 1.4 E-03 3.3 1 2.1 E-03 L.T. 3. E-03 SR-90 GAMMA SPECTRUM ANALYSIS: i E-01 $

BE-7 L.T. 4. E-02 L.T. 5. E-02 L.T. 1. -E-01 L.T. 1.

3.7910.38 E 00 3.3110.33 E 00 2.2110.22 E 00 3.2910.33 E 00 K-40 L.T. 6. E-03 L.T. 6. E-03 L.T. 9. E-03 L.T. 1. E-02 MN-54 r L.T. 6. E-03 L.T. 6. E-03 L.T. 1. E-02 L.T. 1. E-02 CO-58 L.T. 1. E-02 L.T. 1. E-02 L.T. 2. E-02 L.T. 3. E-02 FE-59

c. 1. E-02 E-03 L.T. 5. E-03 L.T. 8. E-03 L.T.

y CO-60 L.T. 5.

ZN-65 L.T. 1. E-02 L.T. 1. E-02 L.T. 2. E-02 L.T. 3. E-02 ZR-95 L.T. 6. E-03 L.T. 6. E-03 L.T. 1. E-02 L.T. 1. E-02 RU-103 L.T. 5. E-03 L.T. 5. E-03 L.T. 1. E-02 L.T. 2. E-02 RU-106 L.T. 5. E-02 L.T. 5. E-02 L.T. 8. E-02 L.T. 1. E-01 i

I-131 L.T. 1. E-02 L.T. 1. E-02 L.T. 6. E-02 L.T. 7. E-02 CS-134 L.T. 6. E-03 L.T. 6. E-03 L.T. 9. E-03 L.T. 1. E-02 CS-137 L.T. 6. E-03 L.T. 6. E-03 L.T. 9. E-03 L.T. 1. E-02 BA-140 L.T. 7. E-03 L.T. 7. E-03 L.T. 3. E-02 L.T. 3. E-02 CE-141 L.T. 8. E-03 L.T. 8. E-03 L.T. 2. E-02 L.T. 3. E-02 CE-144 L.T. 3. E-02 L.T. 3. E-02 L.T. 5. E-02 L.T. 7. E-02 RA-226 L.T. 1. E-01 L.T. 1. E-01 L.T. 2. E-01 L.T. 2. E-01 TH-228 L.T. 9. E-03 L.T. 9. E-03 L.T. 1. E-02 L.T. 2.. E-02 1

i t

i 4

NEBRASKA PUBLIC POWER DISTRICT COOPER NUCLEAR STATION EXPOSURE PATHWAY - INGESTION FISH 4 (PCI/GM WET)

STATION NUMBER 35 STATION 35 - 2.0 MI. 350 DEG. CON.

i DATE COLLECTED: 06/02 10/06 10/07 10/06 QA FISH-CARP FISH-CARP FISH-CATFISH FISH-CARP :

RADIOCHEMICAL ANALYSIS:

1 5.210.2 E 00 7.1 1 0.4 E 00 5.5 i 0.3 E 00 4.8 i 0.2 E 00 GR-B E-03 SR-89 L.T. 4. E-03 - L. T. 7. E-03 L.T. 5. E-03 I.T. 4.

i E-03 E-03 SR-90 8.2 i 1.1 E-03 L.T. 5. E-03 L.T. 3. 1.T. 3.

GAletA SPECTRUM ANALYSIS:

BE-7 L.T. 6. E-02 L.T. 7. E-02 L.T. 8. E-02 L.T. 1. E-01 K-40 4.0610.41 E 00 3.3110.33 E 00 2.2210.22 E 00 4.1010.41 E 00 L.T. 7. E-03 L.T. 6. E-03 L.T. 8. E-03 L.T. 9. E-03 MN-54 E-03 L.T. 7. E-03 L.T. 9. E-03 L.T. 1. E-02 U CO-58 L.T. 7.

to L.T. E-02 L.T. 2. E-02 L.T. 2. E-02 L.T. 2. E-02 FE-59 2.

L.T. 7. E-03 L.T. 7. E-03 L.T. 8. E 'L.T. 9. E-03 CO L.T. 2. E-02 L.T. 2. E-02 L.T. 2. E-02 L.T. 2. E-02 ZN-65 L.T. 7. E-03 L.T. 8. E-03 L.T. 9. E-03 L.T. 1. E-02 i ZR-95 L.T. 7. E-03 L.T. 9. E-03 L.T. 1. E-02 L.T. 1. E-02 RU-103 L.T. 6. E-02 L.T. 6. E-02 L.T. 7. E-02 L.T. 8. E-02 RU-106 I-131 L.T. 1. E-02 L.T. 4. E-02 L.T. 5. E-02 L.T. 6. E-02 L.T. 8. E-03 L.T. 7. E-03 L.T. 8. E-03 L.T. 9. E-03 l CS-134 CS-137 L.T. 8. E-03. L.T. 7. E-03 L.T. 8. E-03 .L.T. 9. E-03 i BA-140 L.T. 9. E-03 L.T. 2. E-02 L.T. 2. E-02 L.T. 3. E-02 E-03 L.T. 1. E-02 L.T. 1. E-02' L.T. 2. E-02

- CE-141 L.T. . 9.

L.T. 4. E-02 L.T. 4. E-02 L.T. 4. E-02. L.T. 5. E-02 CE-144 L.T. 1. E-01 L.T. 1. E-01 L.T. 1. E-01 L.T. 2. E-01 RA-226 L.T. 1. E-02 L.T. 1. E-02 L.T. 1. E-02 L.T. 1. E-02 TH-228 i

F. MILE - NEAREST PRODUCERS 6

4 e

l f

140 l

NEBRASKA PUBLIC POWER DISTRICT COOPER NUCLEAR STATION EXPOSURE PATHWAY - INGESTION MILK NEAREST PRODUCER (PCI/ LITER)

STATION NUMBER 99 STATION 99 - 10.25 MI. 189 DEG. IND.

DATE COLLECTED: 01/05 02/02 03/02 04/06 04/06 OA RADIOCHEMICAL ANALYSIS:

SR-89 L.T. 8. E-01 L.T. 9. E-01 L.T. 1. E 00 L.T. 7. E-01 L.T. 8. E-01 SR-90 1. 9 i 0.2 E 00 1.3 1 0.2 E 00 3.3 1 0.3 E 00 2.0 1 0.2 E 00 1.6 i 0.2 E 00 1-131 L.T. 2. E-01 L.T. 2. E-01 L.T. 2. E-01 L.T. 2. E-01 L.T. 2. E-01 CA (gm/ liter) 1.7 i 0.2 E-01 1. 8 1 0. 2 E 00 1.7 i 0.2 E 00 1.7 1 0.2 E 00 1.8 1 0.2 E 00 GAMMA SPECTRUM ANALYSIS:

BE-7 L.T. 3. E 01 L.T. 4. E 01 L.T. 3. E 01 L.T. 3. E 01 L.T. 3. E 01 K-40 1.3010.13 E 03 1. 3 9iO .14 E 03 1.3510.14 E 03 1.3710.14 E 03 1.4210.14 E 03 MN-54 L.T. 3. E 00 L.T. 5. E 00 L.T. 3. E 00 L.T. 4. E 00 L.T. 3. E 00 CO-58 L.T. 3. E 00 L.T. 5. E 00 L.T. 3. E 00 L.T. 4. E 00 L.T. 4. E 00 FE-59 L.T. 8. E 00 L.T. 1. E 01 L.T. 7. E 00 L.T. 9. E 00 L.T. 8. E 00 CO-60 L.T. 4. E 00 L.T. 5. E 00 L.T. 3. E 00 L.T. 4. E 00 L.T. 4. E 00 W ZN-65 L.T. 8. E 00 L.T. 1. E 01 L.T. 7. E 00 L.T. 9. E 00 L.T. 8. E 00 b

" ZR-95 L.T. 4. E 00 L.T. 5. E 00 L.T. 3. E 00 L.T. 4. E 00 L.T. 4. E 00 RU-103 L.T. 4. E 00 L.T. 5. E 00 L.T. 3. E 00 L.T. 4. E 00 L.T. 4. E 00 RU-106 L.T. 3. E 01 L.T. 4. E 01 L.T. 3. E 01 L.T. 3. E 01 L.T. 3. E 01 L.T. 7. E 00 L.T. 8. E 00 L.T. 4. E 00 L.T. 8. E 00 L.T. 8. E 00 I-131 CS-134 L.T. 4. E 00 L.T. 5. E 00 L.T. 3. E 00 L.T. 4. E 00' L.T. 4. E 00 CS-137 L.T. 4. E 00 L.T. 5. E 00 L.T. 3. E 00 L.T. 4. E 00 L.T. 4. E 00 BA-140 L.T. 5. E 00 L.T. 6. E 00 L.T. 3. E 00 L.T. 7. E 00 L.T. 6. E 00 CE-141 L.T. 8. E 00 L.T. 8. E 00 L.T. 5. E 00 L.T. 7. E 00 L.T. 6. E 00 CE-144 L.T. 3. E 01 L.T. 3. E 01 L.T. 2. E 01 L.T. 2. E 01 L.T. 2. E 01 RA-226 L.T. 8. E 01 L.T. 8. E 01 L.T. 6. E 01 L.T. 7. E 01 L.T. 7. E 01 TH-228 L.T. 7. E 00 L.T. 8. E 00 L.T. 6. E 00 L.T. 7. E 00 L.T. 7. E 00

Duplicate Analysis

NEBRASKA PUBLIC POWER DISTRICT COOPER NUCLEAR STATION EXPOSURE PATHWAY - INGESTION MILK NEAREST PRODUCER (PCI/ LITER)

STATION NUMBER 99 STATION 99 - 10.25 MI. 189 DEG. IND.

DATE COLLECTED: 05/04 06/01 06/01 OA 06/15 06/29 RADIOCHEMICAL ANALYSIS:

SR-89 L.T. 6. E-01 L.T. 8. E-01 SR-90 1.610.1 E 00 1.4 1 0.2 E 00 L.T 2. E-01 L.T. 2. E-01 L.T. 2. E-01 L.T. 2. E-01 L.T. 3. E-01 I-131 CA (gm/ liter) 1.7 i 0.2 E 00 1.8 i O.? 8 00 GAMMA SPECTRUM ANALYSIS:

BE-7 L.T. 3. E 01 L.T. 4. E 01 L.T. 4. E 01 L.T. 3. E 01 L.T. 4. E 01 K-40 1.4410.14 E 03 1. 4 610.15 E 03 1.4710.15 E 03 1.4110.14 E 03 1.5310.15 E 03 L.T. 4. E 00 L.T. 4. E 00 L.T. 4. E 00 L.T. 3. E 00 L.T. 4. E 00 MN-54 CO-58 L.T. 4. E 00 L.T. 4. E 00 L.T. 4. E 00 L.T. 3. E 00 L.T. 4. E 00 FE-59 L.T. 1. E 01 L.T. 1. E 01 L.T. 9. E 00 L.T. 8. E 00 L.T. 1. E 01 CO-60 L.T. 4. E 00 L.T. 4. E 00 L.T. 4. E 00 L.T. 4. E 00 L.T. f. E 00

1. E 01 L.T. 1. E 01 L.T. 9. E 00 L.T. 9. E 00 L.T. 1. E 01

$ ZN-65 L.T.

" E 00 L.T. 4. E 00 L.T. 4. E 00 L.T. 4. E 00 L.T. 4. E 00 ZR-95 L.T. 4.

RU-103 L.T. 4. E 00 L.T. 4. E 00 L.T. 4. E 00 L.T. 4. E 00 L.T. 5. E 00 RU-106 L.T. 4. E 01 L.T. 3. E 01 L.T. 4. E 01 L.T. 3. E 01 L.T. 4. E 01 L.T. 8. E 00 L.T. 7. E 00 L.T. 7. E 00 L.T. 7. E 00 . L.T. 1. E 01 I-131 E 00 L.T. 4. E 00 L.T. 4. E 00 L.T. 4. E 00 L.T. 5. E 00 CS-134 L.T. 4.

CS-137 L.T. 4. E 00 L.T. 4. E 00 L.T. 4. E 00 L.T. 5. E 00 L.T. 4. E 00 BA-140 L.T. 7. E 00 L.T. 5. E 00 L.T. 6. E 00 L.T. 6. E 00 L.T. 8. E 00 CE-141 L.T. 8. E 00 L.T. 9. E 00 L.T. 6. E 00 L.T. 6. E 00 L.T. 9. E 00 CE-144 L.T. 3. E 01 L.T. 4. E 01 L.T. 2. E 01 L.T. 2. E 01 L.T. 3. E 01 RA-226 L.T. 9. E 01 L.T. 1. E 02 L.T. 8. E 01 L.T. 7. E 01 L.T. 9. E 01 TH-228 L.T. 8. E 00 L.T. 9. E 00 L.T. 7. E 00 L.T. 7. E 00 L.T. 8. E 00

NEBRASKA PUBLIC POWER DISTRICT COOPER NUCLEAR STATION EXPOSURE PATHWAY - INGESTION MILK NEAREST PRODUCER (PCI/ LITER)

STATION NUMBER 99 STATION 99 - 10.25 14I. 189 DEG. IND.

06/01-06/29 07/13 07/13 OA 07/13-07/27 07/27 DATE COLLECTED:

RADIOCHEMICAL ANALYSIS:

L.T. 7. E-01 L.T. 1. E 00 L.T. 8. E-01 SR-89 2.2 1 0.2 E 00 SR-90 2.0 1 0.2 E 00 1.5 i 0.2 E 00 L.T. 2. E-01 L.T. 2. E-01 L.T. 3. E-01 I-131 1.8 1 0.2 E 00 CA (gm/ liter) 1.7 i 0.2 E 00 GAMMA SPECTRUM ANALYSIS:

BE-7 L.T. 3. E 01 L.Tc 4. E 01 L.T. 3. E 01 1.4010.14 E 03 1.3310.13 E 03 1.3010.13 E 03 K-40 MN-54 L.T. 4. E 00 L.T. 4. E 00 L.T. 3. E 00 L.T. 4. E 00 L.T. 4. E 00 L.T. 3. E 00 CO-58 FE-59 L.T. 9. E 00 L.T. 9. E 00 L.T. 8. E 00 CO-60 L.T. 4. E 00 L.T. 4. E 00 L.T. 3. E 00 ZN-65 L.T. 9. E 00 L.T. 9. E 00 L.T. 7. E 00 L.T. 4. E 00 L.T. 4. E 00 L.T. 3. E 00 ZR-95 L.T. 4. E 00 L.T. 4. E 00 L.T. 4. E 00 RU-103 RU-106 L.T. 3. E 01 L.T. 4. E 01 L.T. 3. E 01 I-131 L.T. 7. E 00 L.T. 7. E 00 L.T. 7. E 00 L.T. 4. E 00 L.T. 4. E 00 L.T. 3. E 00 CS-134 CS-137 L.T. 4. E 00 L.T. 4. E 00 L.T. 3. E 00 L.T. 6. E 00 L.T. 6. E 00 L.T. 5. E 00 BA-140 CE-141 L.T. 8. E 00 L.T. 6. E 00 L.T. 6. E 00 CE-144 L.T. 3. E 01 L.T. 2. E 01 L.T. 2. E 01 RA-226 L.T. 9. E 01 L.T. 8. E 01 L.T. 6. E 01 L.T. 8. E 00 L.T. 7. E 00 L.T. 5. E 00 TH-228

i NEBRASKA PUBLIC POWER DISTRICT COOPER NUCLEAR STATION EXPOSURE PATHWAY - INGESTION MILK NEAREST PRODUCER (PCI/ LITER) i STATION NUMBER 99 STATION 99 - 10.25 MI. 189 DEG. IND.

DATE COLLECTED: 08/11 08/11 OA 08/11-08/24 08/24 09/07 RADIOCHEMICAL ANALYSIS:

SR-89 L.T. 6. E-01 L.T. 1. E 00 SR-90 2.2 1 0.2 E 00 2,2 i 0.2 E 00 L.T. 2. E-01 L.T. 2. E-01 L.T. 2. E-01 L.T. 2. E-01 I-131 CA (gm/ liter) 1.8 1 0.2 E 00 1.7 i 0.2 E 00 GAMMA SPECTRUM ANALYSIS:

BE-7 L.T. 3. E 01 L.T. 3. E 01 L.T. 3. E 01 L.T. 4. E 01 K-40 1.4610.15 E 03 1.2910.13 E 03 1.4310.14 E 03 1.1610.12 E 03 MN-54 L.T. 4. E 00 L.T. 3. E 00 L.T. 4. E 00 L.T. 4. E 00 CO-58 L.T. 4. E 00 L.T. 4. E 00 L.T. 4. E 00 L.T. 4. E 00 FE-59 L.T. 9. E 00 L.T. 8. E 00 L.T. 1. E 01 L.T. 1. E 01 Co-60 L.T. 4. E 00 L.T. 4. E 00 L.T. 4. E 00 L.T. 4. E 00 c ZN-65 L.T. 1. E 01 L.T. 8. E 00 L.T. 9. E 00 L.T. 1. E 01 en

b ZR-95 L.T. 4. E 00 L.T. 3. E 00 L.T. 4. E 00 L.T. 4. E 00 RU-103 L.T. 4. E 00 L.T. 4. E 00 L.T. 4. E 00 L.T. 5. E 00 RU-106 L.T. 3. E 01 L.T. 3. E 01 L.T. 3. E 01 L.T. 4. E 01 I-131 L.T. 7. E 00 L.T. 7. E 00 L.T. 1. E 01 L.T. 1. E 01 CS-134 L.T. 4. E 00 L.T. 4. E 00 L.T. 4. E 00 L.T. 4. E 00 CS-137 L.T. 4. E 00 L.T. 4. E 00 L.T. 4. E 00 L.T. 4. E 00 BA-140 L.T. 5. E 00 L.T. 5. E 00 L.T. 8. E 00 L.T. 9. E 00 CE-14 L.T. 6. E 00 L.T. 6. E 00 L.T. 8. E 00 L.T. 7. E 00 CE-144 L.T. 2. E 01 L.T. 2. E 01 L.T. 3. E 01 L.T. 2. E 01 RA-226 L.T. 7. E 01 L.T. 6. E 01 L.T. 8. E 01 L.T. 8. E 01 TH-228 L.T. 7. E 00 L.T. 6. E 00 L.T. 7. E 00 L.T. 7. E 00

. . . s ,

. . . _ _ _ - _ _ _ . _ . _ _ . . _ _ _ _ _ _ _ _ . _ - . . . _ _ _ _ . _ _ _ _ _ _ _ __ __- __.____m_- _ _ _ _ . _ _ _ _ _ _ _ _ _ _ _ _ _

NEBRASKA PUBLIC POWER DISTRICT COOPER NUCLEAR STATION EXPOSURE PATHWAY - INGESTION MILK NEAREST PRODUCER (PCI/ LITER)

STATION NUMBER 99 STATION 99 - 10.25 MI. 189 DEG. IND.

DATE COLLECTED: 09/07 QA 09/21 09/07-09/21 10/05 10/05 QA RADIOCHEMICAL ANALYSIS:

SR-89 L.T. 1. E 00 L.T. 1. E 00 L.T. 1. E 00 L.T. 1. E 00 SR-90 2.3 1 0.2 E 00 2.0 1 0.2 E 00 3.2 i 0.3 E 00 1.7 1 0.2 E 00 I-131 L.T. 3. E-01 L.T. 2. E-01 1.7 i 0.2 E 00 L.T. 2. E-01 L.T. 2. E-01 CA (gm/ liter) 1.8 1 0.2 E 00 1.7 1 0.2 E 00 1.7 i 0.2 E 00 GAMMA SPECTRUM ANALYSIS:

L.T. E 01 L.T. 3. E 01 L.T. 3. E 01 L.T. 3. E 01 BE-7 5.

K-40 1.3610.14 E 03 1.4010.14 E 03 1.4410.14 E 03 1.3810.14 E 03 MN-54 L.T. 5. E 00 L.T. 3. E 00 L.T. 4. E 00 L.T. 4. E 00 CO-58 L.T. 5. E 00 L.T. 3. E 00 L.T. 4. E 00 L.T. 4. E 00 L.T. 1. E 01 L.T. 8. E 00 L.T. 1. E 01 L.T. 1. E 01

% FE-59

CO-60 L.T. 5. E 00 L.T. 3. E 00 L.T. 4. E 00 L.T. 4. E 00 ZN-65 L.T. 1. E 01 L.T. 8. E 00 L.T. 8. E 00 L.T. 9. E 00 ZR-95 L.T. 5. E 00 L.T. 4. E 00 L.T. 4. E 00 L.T. 4. E 00 RU-103 L.T. 6. E 00 L.T. 4. E 00 L.T. 4. E 00 L.T. 5. E 00 RU-106 L.T. 4. E 01 L.T. 3. E 01 L.T. 3. E 01 L.T. 3. E 01 I-131 L.T. 2. E 01 L.T. 8. E 00 L.T. 1. E 01 L.T. 1. E 01 CS-134 L.T. 5. E 00 L.T. 4. E 00 L.T. 4. E 00 L.T. 4. E 00 CS-137 L.T. 5. E 00 L.T. 4. E 00 L.T. 4. E 00 L.T. 4. E 00 BA-140 L.T. 1. E 01 L.T. 6. E 00 L.T. 7. E 00 L.T. 7. E 00 CE-14 L.T. 9. E 00 L.T. 6. E 00 L.T. 9. E 00 L.T. 8. E 00 i

e CE-144 L.T. 3. E 01 L.T. 2. E 01 L.T. 3. E 01 L.T. 3. E 01 L.T. E 01 L.T. 7. E 01 L.T. 8. E 01 L.T. 8. E 01 RA-226 8.

E 00 L.T. 7. E 00 L.T. 7. E 00 L.T. 7. E 00 TH-228 L.T. 8.

NEBRASKA PUBLIC POWER DISTRICT COOPER NUCLEAR STATION EXPOSURE PATHWAY - INGESTION MILK NEAREST PRODUCER (PCI/ LITER)

STATION NUMBER 99 STATION 99 - 10.25 HI. 189 DEG. IND.

DATE COLLECTED: 11/03 12/07 RADIOCHEMICAL ANALYSIS:

SR-89 L.T. 1. E 00 L.T. 1. E 00 SR-90 1.8 i 0.2 E 00 2.1 1 0.2 E 00 I-131 L.T. 2. E-01 L.T. 3. E-01 CA (gm/ liter) 1.7 1 0.2 E 00 1.7 1 0.2 E 00 GA.* cia SPECTRUM ANALYSIS:

BE-7 L.T. 3. E 01 L.T. 3. E 01 K-40 1.2810.13 E 03 1.3410.13 E 03 MN-54 L.T. 4. E 00 L.T. 4. E 00 CO-58 L.T. 4. E 00 L.T. 3. E 00 FE-59 L.T. 9. E 00 L.T. 1. E 01

$ Co-60 L.T. 4. E 00 L.T. 5. E 00 cn E 00 L.T. 1. E 01 ZN-65 L.T. 9.

ZR-95 L.T. 4. E 00 L.T. 4. E 00 RU-103 L.T. 4. E 00 L.T. 4. E 00 RU-106 L.T. 3. E 01 L.T. 3. E 01 I-131 L.T. 7. E 00 L.T. 7. E 00 CS-134 L.T. 4. E 00 L.T. 4. E 00 CS-137 L.T. 4. E 00 L.T. 4. E 00 BA-140 L.T. 6. E 00 L.T. 6. E 00 CE-14 L.T. 6. E 00

I.. T. 7. E 00 CE-144 L.T. 2. E 01 L.T. 3. E 01 RA-226 L.T. 7. E 01 L.T. 8. E 01 TH-228 L.T. 7. E 00 L.T. 7. E 00

e g

i l

G. MILK - OTHER PRODUCERS {,

i i

]

i 4

4 1

J l 4

e i

4 l 4

1 t

a l

l 1

4 i

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I d

O c

147

1 NEBRASEA PUBLIC POWER DISTRICT COOPER NUCLEAR STATION EXPOSURE PATHWAY - INGESTION

' MILK OTHER PRODUCERS (PCI/ LITER) '

j STATION NUMBER 42 STATION 42 - 12.85 MI. 156 DEG. IND.

i 01/13 04/13 07/13 - 10/12

, DATE COLLECTED:

4 RADIOCHEMICAL ANALYSIS:

'SR-89 L.T. 8. E-01 L.T. 7. E-01 L.T. 6. -E-01 L.T. 1. E 00 1.8 1 0.2 E 00 .1.4 i 0.2 E 00 1.5 1 0.2 E 00 1. 6 1 0.2 . E 00 --;

SR-90 L.T. E-01 I-131 L.T. 2. E-01 L.T. 2. E-01 L.T. 2. E 2.

1.8 i 0.2 E 00 1.7 i 0.2 E 00 1.7 i 0.2 E 00- 1.8 1 0.2 E 00 CA (gm/ liter)

GAM 4A SPECTRUM ANALYSIS:

1 BE-7 L.T. 3. E 01 L.T. 4. . E 01 L.T. 3. E 01 L.T. 3. E 01 K-40 1.2910.13 E 03 1.4810.15 E 03 1.4210.14 E 03 1.3910.14 E 03 MN-54 - L.T. 3. E 00 L.T. 3. E 00 L.T. 3. E 00 L.T. 3. E 00 CO-58 L.T. 4. -E 00 L.T. 4. E 00 L.T. 4. E 00 L.T. 4. E 00 ;

FE-59' L.T. 9. E 00 L.T. 9. E 00 L.T. 8. E 00 L.T. 9. E 00 CO-60 L.T. 4. E 00 L.T. 5. E 00 L.T. 4. E 00 L.T. 4. E 00 L.T. 1. E 01 L.T. 9. E'00 L.T. 8. E 00 -L.T. 1. E 01 ZN-65 E 00 L.T. 4. E 00 L.T. 4. E 00 5 ER-95 L.T. 4. E 00 L.T. 4.

CD E 00 L.T. - E 00 RU-103 L.T. 4. E 00 L.T. 4~. E 00 L.T. 4. 4.

RU-106 L.T. 3. E 01 L.T. 3. E 01 L.T. 3. E 01 L.T. 3. E 01 ;

I-131 L.T. 6. E 00 L.T. 8. E 00 L.T.. 6. E 00 L.T. 8. E 00 CS-134 L.T. 4. . E 00 L.T. 4. E 00 L.T. 4. E.00 L.T. 4. E 00 i CS-137 L.T. 4. E 00 L.T. 4. E 00 L.T. 5. E 00 L.T.. 4. E 00 ,

BA-140 L.T. - 6. E 00 L.T. . 6. E 00 L.T. 5. E 00 L.T. 6. E 00 .

CE-141 L.T. 6. E 00 L.T. 8. E 00 L.T. 6. E 00 L.T. 7. E 00 ;

CE-144 L.T. 2. E 01 L.T. 3. ' E 01 L.T. 2. E 01 L.T. 3. E 01 RA-226 L.T. 7. E 01 L.T. 9. E 01 L.T. 7. E 01 . L.T. 8. E 01 TH-228 L.T. 7. 'E 00 L.T. 7. E 00 L.T. 6. E 00: L.T. 7. E 00 t

. .D % a . 9 &

., , . , , . _ _ _ . ,-, - m_. _ _ . . m .m-~ .r.,,, .,u . ._ c ..,. ,- ~7.- ,_,_m,y. ., . , - , - .m.m7_, 3 - , _ _ , . ,_7., y. y,_-_, ,

NEBRASKA PUBLIC POWER DISTRICT COOPER NUCLEAR STATION EXPOSURE PATHWAY - INGESTION MILK OTHER PRODUCERS (PCI/ LITER)

STATION NUMBER 100 STATION 100 - 11.5 MI. 197 DEG. IND.

DATE COLLECTED: 01/13 04/13 07/13 10/12 RADIOCHEMICAL ANALYSIS:

SR-89 L.T. 7. E-01 L.T. 6. E-01 L.T. 5. E-01 L.T. 8. E-01 SR-90 2.0 1 0.2 E 00 1.4 i 0.2 E 00 1.4 1 0.2 E 00 1.9 i 0.2 E 00 I-131 L.T. 2. E-01 L.T. 2. E-01 L.T. 2. E-01 L.T. 2. E-01 CA (gm/ liter) 1.8 i 0.2 E 00 1.7 i 0.2 E 00 1.7 i 0.2 E 00 1.8 i 0.2 E 00 GAMMA SPECTRUM ANALYSIS:

BE-7 L.T. 4. E 01 L.T. 4. E 01 L.T. 3. E 01 L.T. 4. E 01 K-40 1.4410.14 E 03 1.5010.15 E 03 1.4410.14 E 03 1.3310.13 E 03 MN-54 L.T. 4. E 00 L.T. 4. E 00 L.T. 3. E 00 L.T. 4. E 00 CO-58 L.T. 4. E 00 L.T. 4. E 00 L.T. 3. E 00 L.T. 4. E 00 FE-59 L.T. 9. E 00 L.T. 1. E 01 L.T. 7. E 00 L.T. 1. E 01 L.T. 5. E 00 L.T. 5. E 00 L.T. 3. E 00 L.T. 4. E 00

@ CO-60 ZN-65 L.T. 1. E 01 L.T. 1. E 01 L.T. 7. E 00 L.T. 1. E 01 ZR-95 L.T. 4. E 00 L.T. 4. E 00 L.T. 3. E 00 L.T. 4. E 00 RU-103 L.T. 4. E 00 L.T. 4. E 00 L.T. 3. E 00 L.T. 5. E 00 RU-106 L.T. 4. E 01 L.T. 3. E 01 L.T. 3. E 01 L.T. 4. E 01 I-131 L.T. 7. E 00 L.T. 9. E 00 L.T. 5. E 00 L.T. 9. E 00 CS-134 L.T. 4. E 00 L.T. 4. E 00 L.T. 3. E 00 . L.T. 4. E 00 CS-137 L.T. 4. E 00 L.T. 4. E 00 L.T. 4. E 00 L.T. 5. E 00 BA-140 L.T. 7. E 00 L.T. 7. E 00 L.T. 4. E 00 L.T. 7. E 00 CE-141 L.T. 8. E 00 L.T. 9. E 00 L.T. 6. E 00 L.T. 8. E 00 CE-144 L.T. 3. E 01 L.T. 3. E 01 L.T. 3. E 01 L.T. 3. E 01 RA-226 L.T. 9. E 01 L.T. 1. E 02 L.T. 7. E 01 L.T. 9. E 01 TH-228 L.T. 7. E 00 L.T. 9. E 00 L.T. 6. E 00 L.T. 7. E 00

I H. GROUNDWATER O

e e

e I

1 i

l 150 l 1

NEBRASKA PUBLIC POWER DISTRICT COOPER NUCLEAR STATION EXPOSURE PATHWAY - WATERBORNE WATER - GROUND (PCI/ LITER)

STATION NUMBER 11 STATION 11 - 0.15 MI. 225 DEG. IND.

01/20 04/21 07/28 10/19 DATE COLLECTED:

RADIOCHEMICAL ANALYSIS:

L.T. 4. E 00 L.T. 2. E 00 L.T. 2. E 00 L.T. 4. E 00 GR-A 8.4 1 1.8 E 00 1.0 1 0.2 E 01 GR-B 1.2 i 0.2 E 01 1.0 1 0.2 E 01 GAMMA SPECTRUM ANALYSIS:

E 01 L.T. 3. E 01 L.T. 3. E 01 L.T. 3. E 01 BE-7 L.T. 3.

L.T. 8. E 01 L.T. 5. E 01 L.T. 6. E 01 L.T. 5. E 01 K-40

3. E 00 L.T. 3. E 00 L.T. 3. E 00 L.T. 3. E 00 MN-54 L.T.

E 00 L.T. 3. E 00 L.T. 3. E 00 L.T. 3. E 00 CO-58 L.T. 3.

L.T. 6. E 00 L.T. 7. E 00 L.T. 7. E 00 L.T. 7. E 00 FE-59 L.T. 3. E 00 L.T. 4. E 00 L.T. 3. E 00 L.T. 4. E 00 CO-60 L.T. 7. E 00 L.T. 9. E 00 L.T. 7. E 00 L.T. 8. E 00 ZN-65 L.T. 3. E 00 L.T. 4. E 00 L.T. 4. E 00 L.T. 4. E 00 "g ZR-95

" L.T. 3. E 00 L.T. 4. E 00 L.T. 4. E 00 L.T. 5. E 00 RU-103 L.T. 3. E 01 L.T. 3. E 01 L.T. 3. E 01 L.T. 3. E 01 RU-106 L.T. 4. E 00 L.T. 6. E 00 L.T. 8. E 00 L.T. 2. E 01 I-131 L.T. 3. E 00 L.T. 4. E 00 L.T. 4. E 00 L.T. 3. E 00 CS-134 L.T. 3. E 00 L.T. 4. E 00 L.T. 4. E 00 L.T. 3. E 00 CS-137 L.T. 4. E 00 L.T. 6. E 00 L.T. 6. E 00 L.T. 8. E 00 BA-140 L.T. 5. E 00 L.T. 6. E 00 L.T. 8. E 00 L.T. 9. E 00 CE-141 L.T. '2. E 01 L.T. 2. E 01 L.T. 3. E 01 L.T. 3. E 01 CE-144 L.T. 6. E 01 L.T. 6. E 01 L.T. 8. E 01 L.T. 8. E 01 RA-226 l

TH-228 L.T. 5. E 00 L.T. 6. E 00 L.T. 7. E 00 L.T. 7. E 00 TRITIUM ANALYSIS:

L.T. 1. E 02 L.T. 1. E 02 L.T. 1. E 02 L.T. 1. E 02 H-3 i

l

NEBRASKA PUBLIC POWER DISTRICT COOPER NUCLEAR STATION EXPOSURE PATHWAY - WATERBORNE WATER - GROUND (PCI/ LITER)

STATION NUMBER 47 STATION 47 - 25.75 MI. 154 DEG. IND.

04/20 07/27 10/19 DATE COLLECTED: 01/19 RADIOCHEMICAL ANALYSIS:

L.T. 3. E 00 L.T. 4. E 00 GR-A L.T. 3. E 00 3 . 0 i '. 9 E 00 8.3 i 1.9 E 00 1.1 1 0.2 E 01 8.4 1 1.8 E 00 8.2 i 1.6 E 00 GR-B GAMMA SPECTRUM ANALYSIS:

E 01 L.T. 3. E 01 L.T. 3. E 01 L.T. 3. E 01 BE-7 L.T. 3.

E 01 L.T. 6. E 01 L.T. 7. E 01 K-40 L.T. 5. E 01 L.T. 5.

L.T. 3. E 00 L.T. 2. E 00 L.T. 3. E 00 L.T. 3. E 00 MN-54 L.T. 3. E 00 L.T. 3. E 00 L.T. 3. E 00 L.T. 3. E 00 CO-58 L.T. 7. E 00 L.T. 6. E 00 L.T. 7. E 00 L.T. 7. E 00 FE-59 E 00 L.T. 3. E 00 L.T. 3. E 00 L.T. 3. E 00 CO-60 L.T. 3.

E 00 L.T. 5. E 00 L.T. B. E 00 L.T. 6. E 00 ZN-65 L.T. 8.

L.T= 3. E 00 L.T. 3. E 00 L.T. 4. E 00 L.T. 3. E 00

$ ZR-95 3. E 00 L.T. 4. E 00 L.T. 4. E 00 RU-103 L.T. 4. E 00 L.T.

L.T. 3. E 01 L.T. 2. E 01 L.T. 3. E 01 L.T. 3. E 01 RU-106

6. E 00 L.T. 6. E 00 L.T. 8. E 00 L.T. 1. E 01 I-131 L.T.

L.T. 4. E 00 L.T. 3. E 00 L.T. 4. E 00 L.T. 3. E 00 CS-134 L.T. 4. E 00 L.T. 3. E 00 L.T. 4. E 00 L.T. 3. E 00 CS-137 BA-140 L.T. 6. E 00 L.T. 4. E 00 L.T. 6. E 00 L.T. 7. E 00 L.T. 8. E 00 L.T. 6. E 00 L.T. 9. E 00 L.T. 7. E 00 CE-141 L.T. 3. E 01 L.T. 2. E 01 L.T. 3. E 01 L.T. 2. E 01 CE-144 L.T. 9. E 01 L.T. 6. E 01 L.T. 1. E 02 L.T. 6. E 01 RA-226 TH-228 L.T. 7. E 00 L.T. 5. E 00 L.T. 8. E 00 L.T. 5. E 00 TRITIUM ANALYSIS:

H-3 1.4 i 0.8 E 02 L.T. 1. E 02 L.T. 1. E 02 L.T. 1. E 02

L RIVER WATER O

l l

4 l

l I

e l

I I

O t

153

NEBRASKA PUBLIC POWER DISTRICT COOPER NUCLEAR STATION EXPOSURE PATHWAY - WATERBORNE WATER - RIVER (PCI/ LITER)

STATION NUMBER 12 STATION 12 - 0.1 MI. 360 DEG. CON.

02/02 03/09 04/06 05/04 EATE COLLECTED: 01/20 RADIOCHEMICAL ANALYSIS:

E-01 L.T. 7. E-01 L.T. 9. E-01 L.T. 6. E-01 SR-89 L.T. 8. E-01 L.T. 8.

E-01

7. E-01 L.T. 6. E-01 L.T. 8. E-01 L.T. 8. E-01 L.T. 5.

SR-90 L.T.

E 00 L.T. 4. E 00 L.T. 2. E 00 3.3 i 2.4 E 00 5.0 1 3.3 E 00 GR-A DIS 4.6 i 3.1 L.T. 4. E-01 L.T. 6. E-01 1.1 1 0.9 E 01 6.4 1 2.8 E 00 4.512.1 E 00 GR-A SUS 2.3 1 0.2 E 01 1.3 i 0.2 E 01 1.1 1 0.2 E 01 9.6 i 1.7 E 00 1.5 1 0.2 E 01 GR-B DIS 5.4 i 1.1 E 01 2.1 i 0.2 E 01 1.2 i 0.2 E 01 GR-B SUS 1.4 i 0.5 E 00 2.310.7 E 00 GAMMA SPECTRUM ANALYSIS:

E 01 L.T. 3. E 01 L.T. 3. E 01 L.T. 3. E 01 L.T. 4. E 01 BE-7 L.T. 2.

E 01 6.1313.24 E 01 L.T. 8. E 01 L.T. 6. E 01 K-40 L.T. 5. E 01 L.T. 9.

3. E 00 E 00 L.T. 3. E 00 L.T. 4. E 00 MN-54 L.T. 3. E 00 L.T. L.T. 3.

L.T. 3. E 00 L.T. 3. E 00 L.T. 3. E 00 L.T. 3. E 00 L.T. 4. E 00 CO-58 L.T. 6. E 00 L.T. 7 E 00 L.T. 7 E 00 L.T. 7. E 00 L.T. 7. E 00 FE-59 L.T. 3. E 00 L.T. 3. E 00 L.T. 3. E 00 L.T. 3. E 00 L.T. 4. E 00 CO-60 L.T. 5. E 00 L.T. 7. E 00 L.T. 8. E 00 L.T. 6. E 00 L.T. 8. E 00

>a ZN-65 tn 3. E 00 L.T. E 00 d' ZR-95 L.T. 3. E 00 L .T . 3. E 00 L.T. 4. E 00 L.T. 4.

L.T. 3. E 00 L.T. 4. E 00 L.T. 4. E 00 L.T. 4. E 00 L.T. 5. E 00 RU-103 L.T. 3. E 01 L.T. 3. E 01 L.T. 3. E 01 L .1. 3. E 01 L.T. 4. E 01 RU-106 E 00 L.T. 6. E 00 L.T. 7 E 00 L.T. 7. E 00 L.T. 8. E 00 1-131 L.T. 4.

L.T. 3. E 00 L.T. 3. E 00 L.T. 4. E 00 L.T. 3. E 00 L.T. 4. E 00 CS-134 L.T. 3. E 00 L.T. 4. E 00 L.T. 3. E 00 L.T. 3. E 00 L.T. 4. E 00 CS-137 L.T. 4. E 00 L.T. 5. E 00 L.T. 6. E 00 L.T. 6. E 00 L.T. 8. E 00 BA-140 L.T. 6. E 00 L.T. 5. E 00 L.T. 6. E 00 L.T. 5. E 00 L.T. 9. E 00 CE-141 L.T. 3. E 01 L.T. 2. E 01 L.T. 2. E 01 L.T. 2. E 01 L.T. 4. E 01 CE-144 L.T. 7. E 01 L.T. 6. E 01 L.T. 6. E 01 L.T. 6. E 01 L.T. 1. E 02 RA-226 L.T. 6. E 00 L.T. 5. E 00 L.T. 6. E 00 L.T. 6. E 00 L.T. 1. E 01 TH -22 8 TRITIUM ANALYSIS: 01/20-03/09 H-3 L.T. 1. E 02

i r NEBRASKA PUBLIC POWER DISTRICT j COOPER NUCLEAR STATION EXPOSURE. PATHWAY - WATERBORNE-WATER - RIVER (PCI/ LITER)

STATION NUMBER 12 i

STAT 10N'12 - 0.1 MI. 360 DEG CON. i I

DATE COLLECTED: 06/01 07/06 07/27* 09/07 10/05 RADIOCHEMICAL ANALYSIS:

L.T. 7. E-01 L.T. 7. E-01 L.T. 2. E 00 L.T. 9. E-01 SR-89 E-01 SR-90 L.T. 7. E-01 L.T. 6. E-01 L.T. 6. E-01 L.T. 5.

GR-A DIS L.T. 4. E 00 L.T. 4. E 00 L.T. 4. E 00 L.T. 3. E 00 GR-A SUS L.T. 1. E 00 L.T. 2. E 00 L.T. 2. E 00 1.3 i 0.7 E 00-GR-B DIS 1.2 1 0.2 E 01 1.0 1 0.2 E 01 1.4 i O.2 E 01 1.9 i 0.3 E 01 GR-B SUS 5.2 i 1.0 E 00 8.7 i 1.3 E 00 7.7_i_1.1 E 00 3.6 i 0.8 E 00 i GAletA SPECTRUM ANALYSIS:

BE-7 L.T. 3. E 01 L.T. 3. E Q1 L.T. 3. E 01 L.T. ~ 3. E 01 K-40 L.T. 5. E 01 L.T. 9. E 01 .L.T. 5. E 01 L.T. 5. E 01 HN-54 L.T. 3. E 00 L.T. 4. E 00 L.T. 3. E 00 L.T. 3. E 00 I CO-58 L.T. 3. E 00 L.T. 4. E 00 L.T. 3. E 00. L.T. 3. E 00

- FE-59 L.T. 7. E 00 .L.T. 7. E 00 L.T. 7. E 00 L.T. 7. E 00 '

on on CO-60 L.T. 3. E 00 L.T. 3. E 00 L.T. 3. E 00 L.T. 3. E 00 L.T. 6. E 00 L.T. -7. E 00 L.T. 6.-E 00- L.T. 6. E 00 ZN-65 L.T. 3. E 00 L.T. 4. E 00 L.T. 3. E 00 L.T. 3. E 00 ZR-95 L.T. E 00 L.T. 4. E 00 L.T. 4. E 00 L.T. 4. E 00 RU-103 4.

RU-106 L.T. 3. E 01 L.T. 4. E 01 L.T. 3. E 01 L.T. 2. E 01 I-131 L.T. 6. E 00 L.T. 6. E 00 L.T. 8. E 00 L.T. 1. E 01-L.T. 4. E 00 L.T. -4. E 00 L.T. 3. E 00 L.T. 3. E 00 CS-134 L.T. 5. E 00 L.T. 4. E 00 L.T. 4. E 00' L.T. 3. E 00 CS-137 L.T. 6. E 00 L.T. 5. E 00 L.T. 6. E 00 L.T. 9. E 00 BA-140 .

CE-141 L.T. 6. E 00 ' -L.T. 5. E 00 L.T. 6. E 00 'L.T. 8. E 00 CE-144 L.T. 2. E 01 L.T. 2. E 01 _L.T. 2. E.01 L.T. 3. E 01 RA-226 L.T. 7. E 01- L.T. 7. E.01 L.T. 7.' E 01 L.T. 7. ;E 01 L.T. E 00 L.T. 47. E 00 .L.T. 6. E 00 L.T. 6. E 00 TH-228 6.

TRITIUM ANALYSIS: 04/06-06/01 07/06-09/07-H-3 L.T. 1. E 02 L.T. 1. E 02 -

i

Missouri River Flood - Sample Not Collected

- . . . _ . _ . _ __~-._._..________--m_ _ - _ - _ . _ _ _ _ _ _ _ _ _ ___ _ _ - - _ - - . _ _ _ _ _ _ _ - _ _ _ . _ _ _ u_-- _-________.m________________m..__..

b NEBRASKA PUBLIC POWER DISTRICT COOPER NUCLEAR STATION EXPOSURE PATHWAY - WATERBOPRE WATER - RIVER

-(PCI/ LITER) ;

STATION NUMBER 12.

STATION 12 - 0.1 MI. 360 DEG. CON.

i DATE COLLECTED: 11/03 12/07 :

RADIOCHEMICAL ANALYSIS:

L.T. 1. E 00 L.T. 5. E-01

SR-89 5. E-01 SR-90 L.T. 4. E-01 L.T. l GR-A DIS L.T.. 1. E 00 5.0 i 3.8 E 00 GR-A SUS L.T. 1. E-01 1.4 i 1.0 E 00 E 00 GR-B DIS 8.3 i 1.2 1.2 i 0.2 E 01

' 3.1 i 0.8 E 00 5.7 1 1.0 E 00 GR-B SUS GAletA SPECTRUM ANALYSIS: ,

L.T. 3. E 01 L.T. 3. E 01 BE-7 ;

L.T. 8. E 01 L.T. 9. E 01

' K-40 ,

L.T. 3. E 00 L.T. 3. E 00 MN-54 CO-58 L.T. 3. E 00 L.T. 3. E 00 FE-59 L.T. 8. E 00 L.T. 7. E 00 ,

Co-60 L.T. 3. E 00 L.T. 3. E 00 ma L.T. 7. 'E 00

$ ZN-65 L.T. 7. ' 00 2R-95 L.T. 4. E 00 ~ L.T. 3. E 00 ' .

RU -103 L.T. 4. E 00 L.T. 4. E 00 l

RU-106 L.T. 3. E 01 L.T. .3. .E 01 !

I-131 L.T. 2. E 01 L.T. 7. 'E 00 CS-134 L.T. 3. E 00 'L.T. 4. E 00 CS-137 L.T. 3. E 00 L.T. 4. E 00 ,

BA-140 -L.T. 9. E 00 ,

L.T. 5. E 00.-

CE-141 L.T. 7. E 00 L.T. 6. E 00 -

l CE-144 L.T. 2. E 01 L.T. 2. E'01 }

BA-226 L.T. 6. E 01 L.T. 7. E 01 TH-228 L.T. 6. E 00 L.T. 5. E.00 ;

TRITIUM ANALYSIS:. 10/05-12/07 H-3 L.T. 1. E 02

. , s . . .

.- e

NEBRASitA PUBLIC POWER DISTRICT COOPER NUCLEAR STATION EXPOSURE PATHWAY - WATERBORNE WATER - RIVER (PCI/ LITER) j STATION NUMBER 28 STATION 28 - 1.8 MI. 150 DEG. IND.

01/19 02/02 03/09 04/06 05/04 DATE COLLECTED:

RAD 10 CHEMICAL ANALYSIS:

L.T. E-01 L.T. 8. E-01 L.T. 7. E-01 L.T. 8. E-01 L.T. 8. E-01 SR-89 6.

E-01 SR-90 L.T. 4. E-01 L.T. 8. E-01 L.T. 7 E-01 L.T. 8. L.T. 5. E-01 8.6 i 6.1 E-01 L.T. 4. E 00 L.T. 2. E 00 5.0 1 2.6 E 00 4.3 i 3.2 E 00 GR-A DIS 2. 6 i 1. 5 E 00 GR-A SUS 6.3 i 4.5 E-01 8.5 i 6.2 E-01 1.3 i 1.1 E 01 3.8 i 2.2 E 00 GR-B DIS 4.9 i 0.8 E 00 7.8 i 1.6 E 00 1.6 i O.2 E 01 1.7 i 0.2 E 01 1.310.2 E 01 GR-B SUS 1.8 1 0.6 E 00 2.6 i 0. 7 E 00 9.5 i 1.5 E 01 1.5 i 0.2 E 01 9. 9 i 1. 3 E 00 GAMMA SPECTRUM ANALYSIS:

3. E 01 L.T. 4. E 01 L.T. 3. E 01 L.T. 3. E 01 L.T. 3. E 01 BE-7 L.T.

K-40 L.T. 6. E 01 L.T. 1. E 02 L.T. 6. E 01 6.6012.81E 01 L.T. 5. E 01 L.T. 3. E 00 L.T. 4. E 00 L.T. 3. E 00 L.T. 3. E 00 L.T. 3. E 00 MN-54 L.T. 3. E 00 L.T. 4. E 00 L.T. 2. E 00 L.T. 4. E 00 L.T. 3. E 00 CO-50 E 00 L.T. 9. E 00 L.T. 6. E 00 L.T. 8. E 00 L.T. 8. E 00 FE-59 L.T. 6.

E 00 L.T. 3. E 00 L.T. 4. E 00 L.T. 3. E 00 y CO-60 L.T. 3. E 00 L.T. 4.

" L.T. E 00 L.T. 1. E 01 L.T. 5. E 00 L.T. 8. E 00 L.T. 8. E 00 ZN-65 6.

L.T. 3. E 00 L.T. 4. E 00 L.T. 3. E 00 L.T. 4. E 00 L.T. 4. E 00 ZR-95 BU-103 L.T. 3. E 00 L.T. 5. E 00 L.T. 3. E 00 L.T. 4. E 00 L.T. 4. E 00 RU-106 L.T. 3. E 01 L.T. 4. E 01 L.T. 2. E 01 L.T. 3. E 01 L.T. 3. E 01 L.T. 4. E 00 L.T. 8. E 00 L.T. 6. E 00 L.T. 1. E 01 L.T. 7 E 00 I-131 E 00 L.T. 5. E 00 L.T. 3. E 00 L.T. 4. E 00 L.T. 4. E 00 CS-134 L.T. 3.

CS-137 L.T. 4. E 00 L.T. 5. E 00 L.T. 3. E 00 L.T. 4. E 00 L.T. 4. E 00 L.T. E 00 L.T. 6- E 00 L.T. 4. E 00 L.T. 7. E 00 L.T. 7. E 00 BA-140 4.

CE-141 L.T. 6. E 00 L.T. 8. E 00 L.T. 6. E 00 L.T. 7 E 00 L.T. 6. E 00 L.T. E 01 L.T. 3. E 01 L.T. 2. E 01 L.T. 2. E 01 L.T. 2. E 01 CE-144 3.

E 01 L.T. 9. E 01 L.T. 6. E 01 L.T. 7 E 01 L.T. 6. E 01 RA-226 L.T. 9.

TH-228 L.T. 7. E 00 L.T. 7 E 00 L.T. 6. E 00 L.T. 7 E 00 L.T. 6. E 00 TRITIUM ANALYSIS: 01/19-03/09 H-3 L.T. 1. E 02

' NEBRASKA PUBLIC POWER DISTRICT COOPER NUCLEAR STATION ,

EXPOSURE PATHWAY - WATERBORNE WATER - RIVER ~

(PCI/ LITER)

STATION NUMBER 28 STATION 28 - 1.8 MI. 150 DEG. IND.

06/01 07/06 07/27* 09/07 10/05 DATE COLLECTED:

RADIOCHEMICAL ANALYSIS:

L.T. E-01 L.T. 9. E-01 L.T. 1. E 00 L.T. 1. E 00 SR-89 6.

E-01 L.T. E-01 SR-90 L.T. 7. E-01 L.T. 9. E-01 L.T. 5. 4.

GR-A DIS L.T. 4. E 00 L.T. 3. .E 00 L.T. 4. E 00 L.T. 3. E 00 GR-A SUS 2.7 i 1.5 E 00 L.T. '1. E 01 L.T. 2. E 00 4.4 1 3.8 E-01 1.4 1 0.2 E 01 1.1 i 0.2 E 01 1.3 i 0.2 E 01 1.5 1 0.3 E 01

-GR-B DIS GR-B SUS 8.3 1 1.2 E c0 5.8 i 0.8 E 01 L.T. 1. E 00 2.2 10.6 E 00 GAMMA SPECTRUM ANALYSIS:

BE-7 L.T. 3. E 01 L.T. 3. E 01 L.T. 3. E 01 L.T. 3. E 01 K-40 L.T. 6. E 01 L.T. 9. E 01 L.T. 4. E 01 L.T. 6. E 01 MN-54 L.T. 3. E 00 L.T. 4. E 00 L.T. .2. E 00 L.T. 3. E 00 CO-58 L.T. 3. E 00 L.T. 4. E 00 L.T. 3. E 00 L.T. 3. E 00 FE-59 L.T. '7. E 00 L.T. 7. E 00 L.T. 6. E 00 -L.T. 7. E 00 o CO-60 L.T. 3. E 00 L.T. 3. E 00 L.T. 3. E 00 L.T. 3. E 00 m

Go ZN-65 L.T. 7. E 00 L.T. 7. E 00 L.T. 5. E 00 L.T. 6. E 00 ZR-95 L.T. 3. E 00 - 'L.T. 4. E 00 L.T. 3. E 00 L.T. 4. E 00 RU-103 L.T. 4. - E 00 L.T. 4. E 00 .L.T. 3. E 00 L.T. 4. E 00 RU-106 L.T. 3. E 01 L.T. 3. E 01 L.T. 2. E 01 L.T. 2. E 01 I-131 L.T. 6. E 00 L.T. 6. E 00 L.T. 7. E 00 .L.T. 2. E 01 CS-134 L.T. 3. E 00 L.T. 4. E 00 L.T. 3. E 00 L.T. 3. E 00 CS-137 L.T. 5. E 00 L.T. 4. E 00 L.T. 4. E 00 L.T. 3. E 00 ,

BA-140 L.T. 6. E 00 L.T. 5. E 00 L.T. 5. E 00 L.T. 1. E 01 CE-141 L.T. 6. E 00 L.T. 5. E 00 L.T. 6. E 00 L.T. ~ 9. E 00 CE-144 L.T. 2. E 01 L.T. 2. E 01 L.T. 2.'E 01 L.T. 3. E 01 RA-226 L.T. 7. E 01 L.T. 7. E 01 L.T. 6. E 01 L.T. 8. E 01 TH-228 L.T. 6. E 00 L.T. 7. E 00 L.T. 6. E 00 L.T. 7. E 00 TRITIUM ANALYSIS: 04/06-06/01 07/06-09/07 H-3 L.T. 1. E 02 L.T. 1. E 02

Missouri River Flood -- Sample Not Collected i . . . . . .

_ _ _ _ _ - _ __ __a w - ~ ~ + - -

NEBRASKA PUBLIC POWER DISTRICT COOPER NUCLEAR STATION EXPOSURE PATHWAY - WATERBORNE WATER - RIVER (PCI/ LITER)

STATION NUMBER 28 STATION 28 - 1.8 MI. 150 DEG. IND.

DATE COLLECTED: 11/02 12/07 RADIOCHEMICAL ANALYSIS:

SR-89 L.T. 1. E 00 L.T. 5. E-01 SR-90 L.T. 5. E-01 L.T. 9. E-01 GR-A DIS L.T. 4. E 00 L.T. 4. E 00 GR-A SUS 1.6 1 0.9 E 00 L.T. 6. E-01 GR-B DIS 1.1 i 0.2 E 01 1.0 1 0.2 E 01 GR-B SUS 3.8 i 0.8 E 00 2.0 1 0.6 E 00 GAMMA SPECTRUM ANALYSIS:

BE-7 L.T. 4. E 01 L.T. 4. E 01 K-40 7.0812.80 E 01 L.T. 1. E 02 MN-54 L.T. 3. E 00 L.T. 4. E 00 CO-58 L.T. 4. E 00 L.T. 5. E 00 c-4 m FE-59 L.T. 9. E 00 L.T. 1. E 01 g

CO-60 L.T. 4. E 00 L.T. 4. E 00 ZN-65 L.T. 6. E 00 L.T. 1. E 01 ZR-95 L.T. 4. E 00 L.T. 5. E 00 RU-103 L.T. 4. E 00 L.T. 5. E 00 RU-106 L.T. 3. E 01 L.T. 4. E 01 I-131 L.T. 1. E 01 L.T. 9. E 00 CS-134 L.T. 3. E 00 L.T. 5. E 00 CS-137 L.T. 4. E 00 L.T. 5. E 00 BA-140 L.T. 9. E 00 L.T. 6. E 00 CE-141 L.T. 1. E 01 L.T. 8. E 00 CE-144 L.T. 3. E 01 L.T. 3. E 01 RA-226 L.T. 1. E 02 L.T. 9. E 01 TH-228 L.T. 8. E 00 L.T. 7. E 00 TRITIUM ANALYSIS: 10/05-12/07 H-3 L.T. 1. E 02

a i

J. THERMOLUMINESCENT DOSIMETRY - RADIATION DOSE a

i I

e e

O 4

160

TAOLE J-1 ..

1993 QUARTERLY REPORT NEBRASKA PUBLIC POWER DISTRICT COOPER NUCLEAR STATION EXPOSURE PATHWAY - AMBIENT GAMMA RADIATION: TLD l '

mil 11 Roentgen / Quarter 6

FIRST QUARTER SECOND QUARTER THIRD QUARTER FOURTH QUARTER SAMPLE STATION NUMBER 01/15-04/19 04/16-07/01 07/01-10/15 10/15-01/11 NUCLIDE 20.4 i 1.7 13.9 1 0.5 26.8 i 3.7 31.8 1 0.9 TLD (Gamma) 01 13.2 1 0.5 13.3 1 0.6 13.9 i 1.1 20.1 i 0.9 02 12.3 1 0.6 17.0

t,0 03 12.4 i 0.4 14.2 1 0.7 14.6 1 0.4 11.9 i 0.6 13.5 i 0.7 22.2 i 1.0 04 12.6 1 0.5 14.1 i 1.1 23.2 i 2.1 l 05 14.2 1 0.5 21.512.0 06 16.1 1 0.5 12.5 i O.7 14.3 i 0.7 07 14.1 1 0.7 15.1 1 0.6 14.9 i 0.6 21.2 1 0.7 w 12.6 1 0.8 16.0 1 0.7 25.0 i 1.1 ch 08 14.5 i 0.7 w

'12.0 1 0.5 15.3 i 0.9 22.0 i 1.3 09 16.2 i 1.5 16.3 1 0.7 12.5 1 0.5 15.3 i 1.1 19.6 i 1.8 10 14.6 i 0.6 14.8 i 0.7 16.0 1 0.9 21.2 i 2.8 20 14.6 1 0.0 14.5 i 0.6 21.8 i 3.1 26.9 i 3.4 44 12.1 1 0.3 15.0 i 1.0 19.2 i 1.7-56 13.8 1 0.4 16.7 1 0.6 14.7 i 0.7 15.9 i 0.8 20.8 i 0.6 i 58 15.0 i 1.0 16.5 i 1.1 22.8 i 1.4 59 15.4 i 0.5 12.7 1 0.8 17.610.8 26.3 i 1.9 66 16.6 1 0.9 15.3 1 0.8 13.6 i 0.2 '17.8 i 0.6 22.4 i 1.6 .

67

-12.3 1 0.3 15.5 i 1.3 25.2 1 1.'7

' 71

STA-71 was badly burned during grass fire two weeks before collection.'

i

Tanta J-1

.I 1993 QUARTERLY REPORT NEBRASKA PUBLIC POWER DISTRICT COOPER NUCLEAR STATION EXPOSURE PATHWAY - AMBIENT GAMMA RADIATION: TID mil 11 Roentgen / Quarter SECOND QUARTER THIRD QUARTER FOURTH QUARTER SAMPLE STATION FIRST QUARTER 10/15-01/11 NUMBER 01/15-04/19 04/16/93-07/01/93 07/01-10/15 NUCLIDE 11.8 i 0.3 15.7 1 0.5 21.3 i 1.8 TLD (Garrena) 79 14.6 i 1.3 14.8 i 1.3 24.9 i 2.2 80 14.4 1 0.5 14.8 1 0.6 13.4 i 0.3 16.2 1 0.9 26.8 i 1.3 81 17.8 1 1.6 13.2 i 1.1 15.7 1 1.2 20.2 i 2.4 82 14.5 1 0.8 16.4 1 1.5 16.7 i 0.9 24.911.8 83 17.5 i 1.1 14.1 1 0.4 18.0 i 1.1 22.5 1 1.0 84 15.1 1 0.7 12.8 i 0.7 14.2 1 0.8 19.9 1 1.7 N

85 14.6 i 0.5 l 23.0 1 0.7

' 86 15.010.6 13.3 1 0.9 15.5 i 0.8 13.4 i 1.2 14.8 i 0.3 16.0 i 0.8 23.210.8 87 12.3 1 0.7 15.0 1 0.8 25.7 i 3.2 88 13.9 i 0.7 15.9 i 0.5 16.6 i 0.6 23.6 i 0.9 89 15.9 i 0.8 15.5 i 0.1 14.9 i 0.7 15.1 1 0.8 25.2 i 5.0 90 13.5 i 0.6 12.2 1 0.4 15.4 i 0.7 20.3 1 2.1 91 i

15.2 1 0.2 13.8 i 0.8. 14.8 i 0.9 24.6 i 2.7 94 t 90.5 days 74.3 days' 106 days 85 days Average / Quarter 13.611.3 mR/74.3 days 16.012.J mR/106 days 22.912.9 mR/85 days 15.211.6 mR/90.5 days

' 0.1710.02 mR/ day 0.1810.02 mR day 0.1510.42 mR day 0.2710.03 Average / Day (12-27)rR 106 days (17-32)mR 85 days '

Range (12-20)mR/90.5 days (12-16)mR 74.3 days 31/31 32/32 32/32 32/32 I i-Det./ Total I I

t

TADIE J-2 1993 QUARTERLY REPORT NEBRASKA PUBLIC POWER DISTRICT COOPER NUCLEAR STATION EXPOSURE PATHWAY - AMBIENT GAMMA RADIATION: TLD m1111 Roentgen / Quarter Aver./ Quarter TOTAL mR/ year SAMPLE STATION 01/15-01/11/94 NUCLIDE NUMBER 23.2 1 7.8 92.9 TLD (Garmul 01 15.1 1 3.3 60.5 02 13.9 1 2.2 55.9 03 15.6 i 4.6 62.2 04 16.014.8 64.1 05 16.113.9 64.4 06 16.3 1 3.3 65.3 w

07 17.0 1 5.5 68.1 08 16.4 i 4.2 65.5 09 15.912.9 63.7 10 16.7 i 3.1 66.6 20 19.4 i 6.0 77.8 44 15.0 i 3.0 60.1 56 17.0 1 2.7 68.1 58 17.4 i 3.6 69.7 59 18.3 i 5.7 73.2 66 17.3 i 3.8 69.1 67 17.8 i 6.9 53.3 71

TACLE J-2 1992 QUARTERLY REPORT NEBRASKA PUBLIC POWER DISTRICT COOPER NUCLEAR STATION EXPOSURE PATHWAY - AMBIENT GAMMA RADIATION: TLD mil 11 Roentgen / Quarter Aver./ Quarter TOTAL mR/ year SAMPLE STATICN 01/15-01/11/94 NUCLIDE NUMBER 15.9 i 4.0 63.4 TLD (Gamnu) 79 17.2 i 5.1 68.9 80 18.6 1 5.8 74.2 81 15.9 i 3.0 63.6 82 18.9 i 4.0 75.5 83 17.4 1 3.0 69.7 84 15.4 1 3.1 61.5 85 c.-- 66.8 16.7 i 4.3

$ 86 16.9 i 4.4 67.4 87 16.7 i 6.1 66.9 88 18.0 1 3.8 72.0 89 17.7 i 5.0 70.7 90 15.4 1 3.6 61.4 91 17.1 i 5.0 69.4 94 16.911.3 Average mR/ Quarter 67.217.1 Range (14-23) Aver. total mR year. All stations Range (53.3-92.9)

K FOOD - BROADLEAF VEGETATION 1

e a

1 O

+-

th 165

NEBRASKA PUBLIC POWER DIS'IRICT COOPER NUCLEAR STATION EXPOSURE PATHWAY - INGESTION VEGETATION - TERRESTRI AL, BROADLEAF (PCI/GM WET)

STATION NUMBER 35 STATION 35 - 2.0 MI. 350 DEG. CON.

05/19 05/19 05/19 06/15 DATE COLLECTED: 05/19 GIANT RAGWEED CURLY DOCK GIANT RAGWEED IRONWEED CURLY DOCK QA RADIOCHEMICAL ANALYSIS:

L.T. 6. E-03 L.T. 5. E-03 L.T. 6. E-03 L.T. 5. E-03 L.T. 5. E-03 1-131 GAMMA SPECTRUM ANALYSIS:

BE-7 1.9410.46 E-01 9.6210.97 E-01 8.0610.87 E-01 2.1410.29 E-01 5.2210.54 E-01 5.3910.54 E 00 5.7910.58 E 00 5.9210.59 E 00 5.6010.56 E 00 7.5710.76 E 00 K-40 L.T. 7 E-03 L.T. 1. E-02 L.T. 1. E-02 L.T. 5. E-03 L.T. 8. E-03 MN-54 L.T. 7 E-03 L.T. 1. E-02 L.T. 1. E-02 L.T. 5. E-03 L.T. 8. E-03 CO-58 L.T. 2. E-02 L.T. 3. E-02 L.T. 2. E-02 L.T. 1. E-02 L.T. 2. E-02 FE-59 L.T. 7. E-03 L.T. 1. E-02 L.T. 1. E-02 L.T. 5. E-03 L.T. 9. E-03 CO-60 L.T. 2. E-02 L.T. 3. E-02 L.T. 2. E-02 L.T. 1. E-02 L.T. 2. E-02 g ZN-65 B. E-03 L.T. 1. E-02 L.T. 1. E-02 L.T. 6. E-03 L.T. 9. E-03

$ ZR-95 L.T.

RU-103 L.T. B. E-03 L.T. 1. E-02 L.T. 1. E-02 L.T. 5. E-03 L.T. 9. E-03 L.T. 6. E-02 L.T. 1. E-01 L.T. 9. E-02 L.T. 5. E-02 L.T. 7 E-02 RU-106 L.T. 2. E-02 L.T. 3. E-02 L.T. 2. E-02 L.T. 1. E-02 L.T. 2. E-02 I-131 L.T. 7 E-03 L.T. 1. E-02 L.T. 1. E-02 L.T. 6. E-03 L.T. 9. E-03 CS-134 L.T. 7 E-03 L.T. 1. E-02 L.T. 1. E-02 L.T. 5. E-03 L.T. 9. E-03 CS-137 L.T. 1. E-02 L.T. 2. E-02 L.T. 2. E-02 L.T. 6. E-03 L.T. 1. E-02 BA-140 L.T. E-02 L.T. 2. E-02 L.T. 2. E-02 L.T. 7. E-03 L.T. 1. E-02 CE-141 1.

L.T. 4. E-02 L.T. 7 E-02 L.T. 6. E-02 L.T. 3. E-02 L.T. 5. E-02 CE-144 ,

L.T. 2. E-02 L.T. 2. E-01 L.T. 2. E-01 L.T. 1. E-01 L.T. 1. E-01 RA-226 L.T. 1. E-02 L.T. 2. E-02 L.T. 2. E-02 L.T. 8. E-03 4.5810.82 E-02 TH-228 a . . . ,

NEBRASKA PUBLIC POWER DISTRICT COOPER NUCLEAR STATION EXPOSURE PATHWAY - INGESTION VEGETATION - TERRESTRIAL, BROADLEAF (PCI/GM WET)

STATION NUMBER 35 STATION 35 - 2.0 MI. 350 DEG. CON.

06/15 06/15 08/17 08/17 08/17 DATE COLLECTED: WILD BUCKWHEAT CURLY DOCF NETTLES COTTONWOOD SYCAMORE RADIOCHEMICAL ANALYSIS:

L.T. 6. E-03 L.T. 5. E-03 L.T. 5. E-03 L.T. 6. E-03 L.T. 4. E-03 I-131 CAMMA SPECTRUM ANALYSIS:

5.6510.72 E-01 1.5010.15 E 00 7.7910.83 E-01 3.2110.32 E 00 1.8410.18 E 00 BE-7 4.1710.42 E 00 5.2210.52 E 00 5.7710.58 E 00 3.3810.34 E 00 2.7510.27 E 00 K-40 L.T. 8. E-03 L.T. 1. E-02 L.T. 9. E-03 L.T. 1. E-02 L.T. 9. E-03 MN-54 L.T. 8. E-03 L.T. 1. E-02 L.T. 9. E-03 L.T. 1. E-02 L.T. 8. E-03 CO-58 L.T. 2. E-02 L.T. 2. E-02 L.T. 2. E-02 L.T. 2. E-02 L.T. 2. E-02 FE-59 L.T. S. E-03 L.T. 1. E-02 L.T. 9. E-03 L.T. 1. E-02 L.T. 1. E-02 CO-60 L.T. 2. E-02 L.T. 3. E-02 L.T. 2. E-02 L.T. 2. E-02 L.T. 2. E-02 ZN-65 L.T. E-03 L.T. 1. E-02 L.T. 1. E-02 L.T. 1. E-02 L.T. 1. E-02 ZR-95 9.

L.T. 9. E-03 L.T. 1. E-02 L.T. 9. E-03 L.T. 1. E-02 L.T. 1. E-02 RU-103 L.T. E-02 L.T. 1. E-01 L.T. 8. E-02 L.T. 9. E-02 L.T. 8. E-02 RU-106 8.

L.T. 2. E-02 L.T. 2. E-02 L.T. 2. E-02 L.T. 3. E-02 L.T. 2. E-02 I-131 L.T. E-03 L.T. 1. E-02 L.T. 9. E-03 L.T. 1. E-02 L.T. 1. E-02 CS-134 9.

L.T. E-03 L.T . 1. E-02 L.T. 9. E-03 L.T. 1. E-02 L.T. 1. E-02 CS-137 9.

E-02 L.T. 2. E-02 L.T. 1. E-02 L.T. 2. E-02 L.T. 2. E-02 BA-140 L.T. 1.

L.T. E-02 L.T. 2. E-02 L.T. 1. E-02 L.T. 2. E-02 L.T. 2. E-02 CE-141 1.

L.T. E-02 L.T. 1 E-02 L.T. 6. E-02 L.T. 9. E-02 L.T. 6. E-02 CE-144 5.

L.T. E-01 L.T. 2. E-01 L.T. 1. E-01 L.T. 3. E-01 L.T. 2. E-01 RA-226 2.

L.T. E-02 L.T. 2. E-02 L.T. 1. E-02 L.T. 2. E-02 L.T. 2. E-02 TH-228 1.

NEBRASKA PUBLIC POWER DISTRICT COOPER NUCLEAR STATION EXPOSURE PATHWAY - INGESTION VEGETATION - TERRESTRIAL, BROADLEAF (PCI/GM WET)

STATION NUMBER 35 STATION 35 - 2.0 MI. 350 DEG. CON.

09/28 09/28 09/28 10/19 DATE COLLECTED: 08/17 QA SMARTWEED BUCKWHEAT WILD BUCKWHEAT WILD GRAPE BUCKWHEAT RADIOCHEMICAL ANALYSIS:

5. E-03 L.T. 2. E-02 L.T. 2. E-02 L.T. 1. E-02 L.T. 9. E-03 I-131 L.T.

GApeth SPECTRUM ANALYSIS:

2.1210.21 E 00 2.5310.25 E 00 3.6510.37 E 00 1.6210.16 E 00 2.6010.26 E 00

. BE-7 K-40 2.4110.24 E 00 2.5310.25 E 00 2.1110.21 E 00 1.2310.12 E 01 2.5410.25 E 00 ,

1. E-02 L.T. 1. E-02 L.T. 7. E-03 L.T. 8. E-03 L.T. 2. E-02 MN-54 L.T.

1. E-02 L.T. -1. E-02 L.T. B. E-03 L.T. 9. E-03 L.T. 2. E-02 Co-58 L.T.

L.T. 3. E-02 L.T. 3. E-02 L.T. 2. E-02 L.T. 2. E-02 L.T. 4. E-02 FE-59 L.T. 1. E-02 L.T. 1. E-02 L.T. 8. E-03 L.T. 9. E-03 L.T. 2. E-02 Co-60 L.T. 3. E-02 L.T. 3. E-02 L.T. 2. E-02 L.T. 2. E-02 L.T. 4. E-02 -[

ZN-65 L.T. 1. E-02 L.T. 2. E-02 L.T. 9. E-03' L.T. 9. E-03 L.T. 2. E-02 y ER-95

1. E-02 E-02 L.T. 1. E-02 L.T. 2. E-02 L.T. 1. E-02 L.T. L.T. 2.

f RU-103 L.T. 1. E-Ol' L.T. 1. E-01 L.T. 7. E-02 L.T. 7. E-02 L.T. 2. E-01 RU-106 L.T. 3. E-02 L.T. 7. E-02 L.T. 4. E-02 L.T. 4. E-02 L.T. 4. E-02 I-131 L.T. 1. E-02 L.T. 1. E-02 L.T. 8. E-03 L.T. 9. E-03 L.T. 2. E-02 CS-134 E-02 L.T. 1. E-02 L.T. 8. E-03 L.T. 8. E-03 L.T. 2. E-02 CS-137 L.T. 1.

2. E-02 L.T. 4. E L.T. 2. E-02 L.T. 2. E-02 L.T. 3. E-02 !

BA-140 'L.T.

L.T. 2. E-02 L.T. 4. E-02 L.T. 2. E-02 L.T. 2. E-02 L.T. 3. E-02 }

CE-141 CE-144 L.T. 7. E-02 L.T. 1. E-01 L.T. 5. E-02 L.T. 6. E-02 ' L.T. 1. E-01 L.T. E-01. L.T. 3. E-01 L.T. 1. E-01 L.T. 2. E-01 L.T. 3. E-01 RA-226 2.

L.T. E-02 L.T. 3. E-02 L.T. 1. E-02 L.T. 1. E-02 L.T. 3. E-02 TH-228 2.

l

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. , , 4 3

_ . . _ . _ _ _ _. . _ _ _ _ . _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ . _ _ _ _ _ _ _ _ _ _ _ _ . _ _ _ _ _ _ _ _ _ _ _ . _ _ _ _ _ - _ _ _ _ _ _ - -- _., , - - - ,u.- -

, - e =

WEBRASKA PUBLIC POtrER DISTRICT COOPER NUCLEAR STATION 4

EXPOSURE PATHWAY - INGESTION VEGETATION - TERRESTRIAL, BROADLEAF

!' (PCI/GM WET)

STATION NUMBER 35-STATION 35 - 2.0 MI. 350 DEG. CON.

1 DATE COLLECTED: 10/19 10/19 l SWAMP SMAR1 WEED WILLOW RADIOCHEMICAL ANALYSIS: L I-131 L.T. 7. E-03 L.T. 1. E-02 GAletA SPECTRUM ANALYSIS:

BE-7 5.2710.53 E 00 5.2610.53 E 00 K-40 4.4310.44 E 00 ' 4.7610. 48 E 00 MN-54 L.T. 9. E-03 L.T. 1. E-02 Co-58 L.T. 9. E-03 L.T. 1. E-02 FE-59 L.T. 2. E-02 L.T. 3. 'E-02 CO-60 L.T. 9. E-03 L.T. 1. E-02

>a ZN-65 L.T. 2. E-02 L.T. 2. E-02 cn M) ZR-95 L.T. 1. E-02 L.T. 1. E-02 4

RU-103 L.T. 1. E-02 L.T. 1. E-02 RU-106 L.T. 8. E-02 L.T. 1. E-01 1-131 L.T. 2. E-02 L.T. 3. E-02 CS-134 L.T. 1. E-02 L.T. 1. E-02 ,

CS-137 L.T. 9. E-03 L.T. 1. E-02 BA-140 L.T. 1. E L.T. 2. E-02 CE-141 'L.T. 1. E-02 L.T. 2. E-02 CE-144 -L.T. 5. E-02 L.T. 7. E-02 RA-226 L.T. 2. E-01 L.T. 2. E-01 TH-228 .L.T. 2. E-02 4.5711.65 E-02 i

i e

4 O

_ _ _ _ _ _ _ _ _ _ _ _ . _ . _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ . _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ . _ _ _ _ __________________m

NEBRA81tA PUBLIC PogrER DISTRICT COOPER NUCLEAR STATION EXPOSURE PATHWAY - INGESTION VEGETATION - TERRESTRIAL, BROADLEAF (PC1/GM WET)

STATION NUMBER 44 STATION 44 - 10.25 M1. 270 DEG. CON.

05/18 05/18 05/10 06/15 06/15 DATE COLLECTED: ARKANSAS ROSE SWEET CLOVER SHEPHERDSPURSE ARKANSAS ROSE CLOVER RAD 10 CHEMICAL ANALYSIS:

L.T. 7. E-03 L.T. 8. E-03 L.T. 7 E-03 L.T. 4. E-03 L.T. 6. E-03 1-131 GAWA SPECTRUM ANALYSIS:

1.5910.16 E 00 4.4410.44 E 00 2.9110.29 E 00 1.7210.17 E 00 9.4611.27 E-01 BE-7 5.6010.56 E 00 3.8410.38 E 00 5.9610.60 E 00 4.7710.48 E 00 4.0910.41 E 00 K-40 L.T. 6. E-03 L.T. 2. E-02 L.T. 8. E-03 L.T. 1. E-02 L.T. 1. E-02 MN-54 L.T. 6. E-03 L.T. 2. E-02 L.T. 8. E-03 L.T. 1. E-02 L.T. 1. E-02 CO-58

2. E-02 L.T. 4. E-02 L.T. 2. E-02 L.T. 3. E-02 L.T. 3. E-02 FE-59 L.T.

L.T. 7 E-03 L.T. 2. E-02 L.T. 1. E-02 L.T. 1. E-02 L.T. 2. E-02 CO-60 L.T. 2. E-02 L.T. 4. E-02 L.T. 2. E-02 L.T. 3. E-02 L.T. 3. E-02 C ZN-65 ZR-95 L.T. 6. E-03 L.T. 2. E-02 L.T. 1. E-02 L.T. 1. E-02 L.T. 2. E-02 L.T. 7. E-03 L.T. 2. E-02 L.T. 9. E-03 L.T. 1. E-02 L.T. 2. E-02 RU-103 L.T. E-02 L.T. 1. E-01 L.T. 7. E-02 L.T. 1. E-01 L.T. 1. E-01 RU-106 5.

L.T. 2. E-02 L.T. 4. E-02 L.T. 2. E-02 L.T. 3. E-02 L.T. 3. E-02 I-131 CS-134 L.T. 7 E-03 L.T. 2. E-02 L.T. 9. E-03 L.T. 1. E-02 L.T. 2. E-02 E-03 L.T. 2. E-02 L.T. 9. E-03 L.T. 1. E-02 L.T. 2. E-02 CS-137 L.T. 6.

E-02 L.T. 3. E-02 L.T. 2. E-02 L.T. 2. E-02 L.T. 2. E-02 BA-140 L.T. 1.

L.T. E-02 L.T. 3. E-02 L.T. 2. E-02 L.T. 2. E-02 L.T. 3. E-02 CE-141 1.

L.T. E-02 L.T. 9. E-02 L.T. 6. E-02 L.T. 8. E-02 L.T. 1. E-01 CE-144 4.

RA-226 L.T. 1. E-01 L.T. 3. E-01 L.T. 2. E-01 L.T. 2. E-01 L.T. 3. E-01 L.T. E-02 L.T. 3. E-02 L.T. 2. E-02 L.T. 2. E-02 L.T. 3. E-02 TH-228 1.

NEBRASKA PUBLIC POWER DISTRICT COOPER NUCLEAR STATION EXPOSURE PATHWAY - INGESTION VEGETATION - TERRESTRIAL, BROADLEAF (PCI/GM WET)

STATION NUMBER 44 STATION 44 - 10.25 MI. 270 DEG. CON.

DATE COLLECTED: 06/15 06/15 OA 07/20 07/20 07/20 RED CLOVER SWEET CLOVER COMMON RAGWEED PIG WEED SWEET CLOVER RADIOCHEMICAL ANALYSIS:

I-131 L.T. 5. E-03 L.T. 5. E-03 L.T. 6. E-03 L.T. 6. E-03 L.T. 1. E-02 GAMMA SPECTRUM ANALYSIS:

BE-7 1.3110.13 E 00 9.66i1.17 E-01 3.5710.36 E 00 1.1410.11 E 00 1.6910.17 E 00 K-40 5.4310.54 E 00 4.4210.44 E 00 5.1510.51 E 00 5.4210.54 E 00 3.3410.33 E 00 MN-54 L.T. 1. E-02 L.T. 1. E-02 L.T. 6. E-03 L.T. 8. E-03 L.T. 7 E-03 CO-58 L.T. 1. E-02 L.T. 1. E-02 L.T. 6. E-03 L.T. 9. E-03 L.T. 7. E-03 FE-59 L.T. 3. E-02 L.T. 3. E-02 L.T. 2. E-02 L.T. 2. E-02 L.T. 2. E-02 CO-60 L.T. 1. E-02 L.T. 1. E-02 L.T. 7. E-03 L.T. 8. E-03 L.T. 8. E-03

3. E-02 L.T. 3. E-02 L.T. 2. E-02 L.T. 2. E-02 L.T. 2. E-02

) ZN-65 L.T.

ZR-95 L.T. 1. E-02 L.T. 1. E-02 L.T. 7. E-03 L.T. 9. E-03 L.T. 7 E-03 RU-103 L.T. 1. E-02 L.T. 2. E-02 L.T. 7 E-03 L.T. 8. E-03 L.T. 8. E-03 RU-106 L.T. 1. E-01 L.T. 1. E-01 L.T. 6. E-02 L.T. 8. E-02 L.T. 6. E-02 1-131 L.T. 2. E-02 L.T. 3. E-02 L.T. 2. E-02 L.T. 2. E-02 L.T. 2. E-02 CS-134 L.T. 1. E-02 L.T. 1. E-02 L.T. 7. E-03 L.T. 1. E-02 L.T. 7. E-03 CS-137 L.T. 1. E-02 L.T. 1. E-02 L.T. 7. E-03 L.T. 9. E-03 L.T. 7 E-03 BA-140 L.T. 2. E-02 L.T. 2. E-02 L.T. 1. E-02 L.T. 1. E-02 L.T. 1. E-02 CE-141 L.T. 2. E-02 L.T. 2. E-02 L.T. 1. E-02 L.T. 1. E-G2 L.T. 1. E-02 CE-144 L.T. 8. E-02 L.T. 8. E-02 L.T. 5. E-02 L.T. 5. E-02 L.T. 5. E-02 RA-226 L.T. 2. E-01 L.T. 3. E-01 L.T. 1. E-01 L.T. 2. E-01 L.T. 1. E-01 TH-228 L.T. 2. E-02 L.T. 2. E-02 5.5010.75 E-02 2.1310.72 E-02 L.T. 1. E-02

NEBRASKA PUBLIC POWER DISTRICT COOPER NUCLEAR STATION EXPOSURE PATHWAY - INGESTION VEGETATION - TERRESTRIAL, BROADLEAF (PCI/GM WET)

STATION NUMBER 44 STATION 44 - 10.25 MI. 270 DEG. CON.

DATE COLLECTED: 08/17 08/17 08/17 09/28 09/28 PARTRIDGE PEA ELDERBERRY PIGWEED LAMBSQUARTER MILKWEED RADIOCHEMICAL ANALYSIS:

1-131 L.T. 5. E-03 L.T. 4. E-03 L.T. 4. E-03 L.T. 2. E-02 L.T. 2. E-02 GAMMA SPECTRUM ANALYSIS:

BE-7 1.2410.12 E 00 3.0210.30 E 00 1.1810.14 E 00 3.3610.34 E 00 6.1110.61 E 00 K-40 3.6410.36 E 00 6.0010.60 E 00 1.0010.10 E 01 5.3510.53 E 00 4.6410.47 E 00 MN-54 L.T. 1. E-02 L.T. 6. E-03 L.T. 1. E-02 L.T. 7 E-03 L.T. 5. E-03 CO-58 L.T. 1. E-02 L.T. 6. E-03 L.T. 1. E-02 L.T. 8. E-03 L.T. 5. E-03 FE-59 L.T. 3. E-02 L.T. 1. E-02 L.T. 3. E-02 L.T. 2. E-02 L.T. 1. E-02 CO-60 L.T. 1. E-02 L.T. 6. E-03 L.T. 2. E-02 L.T. 7. E-03 L.T. 5. E-03 ZN-65 L.T. 2. E-02 L.T. 2. E-02 L.T. 3. E-02 L.T. 2. E-02 L.T. 1. E-02 Y ZR-95 L.T. 1. E-02 L.T. 6. E-03 L.T. 2. E-02 L.T. 9. E-03 L.T. 6 E-03 N

RU-103 L.T. 1 E-02 L.T. 7. E-03 L.T. 2. E-02 L.T. 9. E-03 L.T. 6. E BU-106 L.T. 1. E-01 L.T. 5. E-02 L.T. 1. E-01 L.T. 7. E-02 L.T. 4. E-02 1-131 L.T. 3. E-C2 L.T. 1. E-02 L.T. 3. E-02 L.T. 3. E-02 L.T. 2. E-02 CS-134 L.T. 1. E-02 L.T. 6. E-03 L.T. 2. E-02 L.T. 8. E-03 L.T. 5. E-03 CS-137 L.T. 1. E-02 L.T. 6. E-03 L.T. 2. E-02 L.T. 8. E-03 L.T. 5. E-03 BA-140 L.T. 2. E-02 L.T. 9. E-03 L.T. 2. E-02 L.T. 2. E-02 L.T. 1. E-02 CE-141 L.T. 2. E-02 L.T. 1. E-02 L.T. 3. E-02 L.T. 1. E-02 L.T. 1. E-02 CE-144 L.T. 6. E-02 L.T. 4. E-02 L.T. 9. E-02 L.T. 4. E-02 L.T. 3. E-02 RA-226 L.T. 2. E-01 L.T. 1. E-01 L.T. 3. E-01 L.T. 1. E-01 L.T. 1. E-01 TH-228 L.T. 2. E-02 L.T. 1. E-02 L.T. 2. E-02 7.6310.80 E-02 L.T. 9. E-03

NEBRASKA PUBLIC POWER DISTRICT COOPER NUCLEAR STATION EXPOSURE PATHWAY - INGESTION VEGETATION - TERRESTRIAL, BROADLEAF (PCI/GM WET)

STATION NUMBER 44 STATION 44 - 10.25 MI. 270 DEG. CON.

DATE COLLECTED: 09/28 09/28 QA 10/19 10/19 10/19 GIANT RAGWEED LAMBSQUARTER GIANT RAGWEED SNAKEWEED SL LF LAMB QTR RADIOCHEMICAL ANALYSIS:

L.T. 2. E-02 L.T. 9. E-03 L.T. 8. E-03 L.T. 9. E-03 L.T. 9. E-03

, I-131 GAM 4A SPECTRUM ANALYSIS:

I' BE-7 5.06t0.51 E 00 1.6310.16 E 00 5.9710.60 E 00 3.2910.33 E 00 1.51io.15 E 00 6.2710.63 E 00 1.3110.13 E 01 6.3510.64 E 00 6.1310.61 E 00 1.0110.10 E 01 K-40 L.T. 1. E-02 L.T. 1. E-02 L.T. 2. E-02 L.T. 1. E-02 L.T. 1. E-02 MN-54 L.T. 2. E-02 L.T. 1. E-02 L.T. 2. E-02 L.T. 1. E-02 L.T. 1. E-02 CO-58 L.T. '4. E-02 L.T. 3. .E-02 L.T. 5. E-02 L.T. 3. E-02 L.T. 3. E-02 FE-59 L.T. 2. E-02 L.T. 1. E-02 L.T. 2. E-02 L.T. 1. E-02 L.T. 1. E-02 CO-60 E-02 L.T. 3. E-02 L.T. 5. E-02 L.T. 3. E-02 L.T. 3. E-02 ZN-65 L.T. 3.

L.T. 2. E-02 L.T. 1. E-02 L.T. 2. E-02 L.T. 1. E-02 L.T. 1. E-02 y ZR-95 RU-103 L.T. 2. E-02 L.T. 1. E-02 L.T. 2. E-02 L.T. 1. E-02 L.T. 1. E-02 RU-106 L.T. 1. E-01 L.T. 9. E-02 L.T. 2. E-01 L.T. 1. E-01 L.T. 9. E-02 I-131 L.T. 8. E-02 .L.T. 5. E-02 L.T. 5. E-02 L.T. 3. E-02 L.T. 2. E-02 CS-134 L.T. 2. E-02 L.T. 1. E-02 'L.T. 2. E-02 L.T. 1. E-02 L.T. l.. E-02 ~

L.T. E-02 L.T. 1. E-02 L.T. 2. E-02 L.T. 1. E-02 L.T. 1. E-02 CS-137 2.

L.T. E-02 L.T. 2. E-02 L.T. 3. E-02 L.T. 2. E-02 L.T. 2. E-02 BA-140 4.

L.T. 4. E-02 L.T. 2. E-02 L.T. 5. E-02 ~L.T. 2. E-02 L.T. 2. E-02 CE-141

! CE-144 L.T. 1. E-01 L.T. 6. E-02 L.T. 2. E-01 L.T. 8. E-02' L.T. 8. E E-01 L.T. 2. E-Ol' L.T. 5. E-01' L.T. 2. E-01 L.T. 2. E-01 RA-226 L.T. 3.

TH-228 L.T. 3. E-02 L.T. 2. E-02 L.T. 4. E-02 L.T. 2. E-02 L.T. 2. E-02 e

a

- _ _ _ . _ . _ _ _ _ _ . _ _ _ _ _ _ _ . _ _ _ _ _ _ _ _ _ _ _ _ _ - __ _ -____m____-__ ___ _ _. ____.___

l l

NEBRASRA PUBLIC POOTER DISTRICT COOPER NUCLEAR STATION EXPOSURE PATHWAY - INGESTION VECETATION - TERRESTRIAL, BROADLEAF (PC1/GM WET)

STATION NUMBER 96 STATION 96 - 1.25 MI. 334 DEG. IND 05/19 05/19 05/19 06/15 06/15 DATE COLLECTED: WATERCRESS GOLDENROD PLANTAIN CLOVER CURLY DOCK RADIOCHEMICAL ANALYSIS:

L.T. 1. E-02 L.T. 5. E-03 L.T. 6. E-03 L.T. 7 E-03 L.T. 5. E-03 1-131 GAMMA SPECTRUM ANALYSIS:

8E-7 3.2210.32 E 00 2.70i0.27 E 00 1.0710.11 E 00 1.6710.17 E 00 1.0810.11 E 00 5.3210.53 E 00 5.0710.51 E 00 5.1010.51 E 00 3 . 6 310. 3 6 E 00 6.9610.70 E 00 K-40 L.T. 9. E-03 L.T. 8. E-03 L.T. 6. E-03 L.T. 9. E-03 L.T. 9. E-03 MN-54 CO-58 L.T. 9. E-03 L.T. 9. E-03 L.T. 6. E-03 L.T. 8. E-03 L.T. 9. E-03 L.T. 2. E-02 L.T. 2. E-02 L.T. 1. E-02 L.T. 2. E-02 L.T. 2. E-02 FE-59 CO-60 L.T. 9. E-03 L.T. 9. E-03 L.T. 6. E-03 L.T. 1. E-02 L.T. 9. E-03

>- ZN-65 L.T. 2. E-02 L.T. 2. E-02 L.T. 1. E-02 L.T. 2. E-02 L.T. 2. E-02 N E-03

b L.T. E-03 L.T. 9. E-03 L.T. 6. E-02 L.T. 8. E-03 L.T. 9.

2R-95 9.

L.T. 1. E-02 L.T. 9. E-03 L.T. 6. E-03 L.T. 1. E-02 L.T. 1. E-02 RU-103 RU-106 L.T. 8. E-02 L.T. 8. E-02 L.T. 5. E-02 L.T. 8. E-02 L.T. 8. E-02 L.T. 2. E-02 L.T. 2. E-02 L.T. 1. E-02 L.T. 2. E-02 L.T. 2. E-02 1-131 L.T. 1. E-02 L.T. 9. E-03 L.T. 6. E-03 L.T. 9. E-03 L.T. 1. E-02 CS-134 L.T. 1. E-02 L.T. 1. E-02 L.T. 6. E-03 L.T. 1. E-02 L.T. 1. E-02 CS-137 BA-140 L.T. 1. E-02 L.T. 1. E-02 L.T. 8. E-03 L.T. 1. E-02 L.T. 1. E-02 CE-141 L.T. 2. E-02 L.T. 1. E-02 L.T. 9. E-03 L.T. 2. E-02 L.T. 1. E-02 CE-144 L.T. 7. E-02 L.T. 5. E-02 L.T. 3. E-02 L.T. 7 E-02 L.T. 5. E-02 RA-226 3.0811.47 E-01 L.T. 2. E-01 L.T. 1. E-01 L.T. 2. E-01 L.T. 2. E-01 TH-228 3.8211.05 E-02 4.7111.24 E-02 1.0410.49 E-02 L.T. 2. E-02 L.T. 2. E-02 i . . . . .

NIBRASKA PUBLIC POWER OISTRICT COOPER NUCLEAR STATION EXPOSURE PATHWAY - INGESTTON VEGETATTON - TERRESTRIA1, BROADLEAF (PCI/GM W:". )

STATION NUM.h" 36 STATION 96 - 1.25 M1. 1 DEG. IND DATE COLLECTED: 06/15 07/20 07/20 07/20 07/20 CURLY DOCK SWAMP SMARTWEED SWAMP SMARTWEED CLOVEN BLACKSEED PLANTAIN RADIOCHEMICAL ANALYSIS:

I-131 L.T. 4. E-03 L.T. 1. E-02 L.T. 1. E-02 L.T. 7. C-03 L.T. 7. E-03 GAMMA SPECTRUM ANALYSIS:

BE-7 2.0010.21 E 00 4.2410.42 E 00 4.6710.47 E 00 5.1110.51 E 00 3.6310.36 E 00 K-40 5.0010.50 E 00 3.2310.32 E 00 2.3810.24 E 00 7.4410.74 E 00 4.9510.49 E 00 MN-54 L.T. 1. E-02 L.T. 1. E-02 L.T. 1. E-02 L.T. 1. E-02 L.T. 9. E-03 CO-58 L.T. 1. E-02 L.T. 1. E-02 L.T. 1. E-02 L.T. 1. E-02 L.T. 9. E-03 FE-59 L.T. 3. E-02 L.T. 3. E-02 L.T. 2. E-02 L.T. 3. E-02 L.T. 2. E-02 Co-60 L.T. 1. E-02 L.T. 1. E-02 L.T. 1. E-02 L.T. 1. E-02 L.T. 9. E-03 ZN-65 L.T. 3. E-02 L.T. 3. E-02 L.T. 3. E-Oc L.T. 3. E-02 L.T. 2. E-02 c.

y ZR-95 L.T. 1. E-02 L.T. 1. E-02 L.T. 1. E-02 L.T. 1. E-02 L.T. 1. E-02 RU-103 L.T. 1. E-02 L.T. 1. E-02 L.T. 1. E-02 L.T. 1. E-02 L.T. 1. E-02 RU-106 L.T. 1. E-01 L.T. 1. E-01 L.T. 9. E-02 L.T. 1. E-01 L.T. 8. E-02 1-131 L.T. 3. E-02 L.T. 3. E-02 L.T. 2. E-02 L.T. 3. E-02 L.T. 2. E-02 CS-134 L.T. 1. E-02 L.T. 1. E-02 L.T. 1. E-02 L.T. 2. E-02 L.T. 1. E-02 CS-137 L.T. 2. E-02 L.T. 1. E-02 L.T. 1. E-02 2.1410.89 E-02 1.6710.71 E-02 BA-140 L.T. 2. E-02 L.T. 2. E-02 L.T. 2. E-02 L.T. 2. E-02 L.T. 1. E-02 CE-141 L.T. 2. E-02 L.T. 2. E-02 L.T. 2. E-02 L.T. 2. E-02 L.T. 1. E-02 CE-144 L.T. 8. E-02 L.T. 7. E-02 L.T. 6. E-02 L.T. 7. E-02 L.T. 5. E-02 RA-226 L.T. 3. E-01 'L.T. 2. E-01 L.T. 2. E-01 5.4911.50 E-01 L.T. 2. E-01 TH-228 L.T. 3. E-02 L.T. 2. E-02 L.T. 2. E-02 2.9410.29 E-01 7.6610.87 E-02

NEBRASKA PUBLIC POWER DISTRICT COOPER NUCLEAR STATION EXPOSURE PATHWAY - INGESTION VEGETATION - TERRESTRIAL, BROADLEAF (PCI/CM WET)

STATION NUMBER 96 STATION 96 - 1.25 MI. 334 DEG. IND DATE COLLECTED: 08/17 08/17 08/17 09/28 09/28 SWAMP SMARTWEED PARTRIDGE PEA COCKLEBUR SMARTWEED COMMON RAGWEED RADIOCHEMICAL ANALYSIS:

L.T. 4. E-03 L.T. 8. E-03 L.T. 6. E-03 L.T. 2. E-02 L.T. 3. E-02 I-131 GAMMA SPECTRUM ANALYSIS:

BE-7 3. 4 910. 3 5 E 00 3.1710.32 E 00 9.7011.20 E-01 5.0510.50 E 00 8.2810.83 E 00 1.2510.13 E 00 5.2410.52 E 00 5.1110.51 E 00 0.1610.82 E 00 4.2110.42 E 00 K-40 L.T. 2. E-02 L.T. 1. E-02 L.T. 1. E-02 L.T. 2. E-02 L.T. 1. E-02 MN-54 L.T. 2. E-02 L.T. 1. E-02 L.T. 1. E-02 L.T. 2 E-02 L.T. 1. E-02 CO-58 L.T. 4. E-02 L.T. 3. E-02 L.T. 3. E-02 L.T. 5. E-02 L.T. 3. E-02 FE-59 L.T. 2. E-02 L.T. 1. E-02 L.T. 1. E-02 L.T. 2. E-02 L.T. 1. E-02 CO-60 L.T. 4. E-02 L.T. 3. E-02 L.T. 3. E-02 L.T. 5. E-02 L.T. 2. E-02 ZN-65 E-02 1. E-02 E-02 L.T. 2. E-02 L.T. 1. E-02 U

m 2R-95 L.T. 2. L.T. L.T. 1.

L.T. 2. E-02 L.T. 1. E-02 L.T. 1. E-02 L.T. 3. E-02 L.T. 1. E-02 RU-103 L.T. 1. E-01 L.T. 1. E-01 L.T. 1. E-01 L.T. 2. E-01 L.T. 9. E-02 RU-106 L.T. 4. E-02 L.T. 4. E-02 L.T. 3. E-02 L.T. 1. E-01 L.T. 6. E-02 I-131 CS-134 L.T. 2. E-02 L.T. 1. E-02 L.T. 1. E-02 L.T. 2. E-02 L.T. 1. E-0?

L.T. 2. F-02 1.1610.80 E-02 L.T. 1. E-02 L.T. 2. E-02 L.T. 1. E-02 CS-137 BA-140 L.T. 3. 2 L.T. 2. E-02 L.T. 2. E-02 L.T. 5. E-02 L.T. 3. E-02 L.T. 2. E-02 L.T. 3. E-02 L.T. 3. E-02 L.T. 4. E-02 L.T. 3. E-02 CE-141 L.T. 9. E-02 L.T. 1. E-01 L.T. 1. E-01 L.T. 1. E-01 L.T. 6. E-02 CE-144 ,

RA-226 L.T. 3. E-01 L.T. 3. E-01 L.T. 3. E-01 L.T. 4. E-01 L.T. 2. E-01 TH-228 L.T. 3. E-02 L.T. 3. E-02 L.T. 3. E-02 L.T. 3. E-02 L.T. 2. E-02

. + , .

NEBRASKA PUBLIC POWER DISTRICT COOPER NUCLEAR STATION EXPOSURE PATHWAY - INGESTION VEGETATION - TERRESTRIAL, BROADLEAF (PCI/GM WET)

STATION NUMBER 96 STATION 96 - 1.25 MI. 334 DEG. IND 09/28 10/19 10/19 10/19 10/19 QA DATE COLLECTED: SMARTWEED PUNCTUREVINE SMARTWEED GOLDENROD HOARY CRESS RADIOCHEMICAL ANALYSIS:

1. E-02 L.T. 2. E-02 L.T. 1. E-02 L.T. 9. 'E-03 L.T. 1. E-02 I-131 L.T.

Gale 1A SPECTRUM ANALYSIS:

1.8510.18 E 00 1.1010.11 E 01 6.3010.63 E 00 - 5.6610.57 E 00 9.8010.98 E 00 BE-7 6.3110.63 E 00 1. 6110.18 E 00 4.6910.47 E 00 4.1710.42 E 00 1.1310.17 E 00 K-40 L.T. 1. E-02 L.T. 2. E-02 L.T. 1. E-02 L.T. 2. E-02 L.T. 2. E-02 MN-54 L.T. 1. E-02 L.T. 2. E-02 L.T. 1. E-02 L.T. 2. E-02 L.T. 2. E-02 CO-58 FE-59 L.T. 3. E-02 L.T. 4. E-02 L.T. 3. E-02 L.T. 5. E-02 L.T. 4. E-02

1. E-02 L.T. 2. E-02 L.T. 1. E-02 L.T. 2. E-02 L.T. .2. E-02 C CO-cd L.T.

L.T. 3. E-02 L.T. 4. E-02 L.T. 4. E-02 L.T. 4. E-02 L.T. 4. E-02 ZM-65 L.T. E-02 L.T. 2. E-02 L.T. 2. E-02 L.T. 2. E-02 L.T. 2. E-02 ZD-95 1.

L.T. E-02 L.T. 2. E-02 L.T. 2. E-02 L.T. 2. E-02 L.T. 2. E-02 RU-103 1.

1. E-01 L.T. 2. E-01 L.T. 1. E-01 L.T. 2. E-01 L.T. 2. E-01 RU-106 L.T.

L.T. 6. E-02 L.T. 4. E-02 L.T. 5. E-02 L.T. 6. E-02 L.T. 7. E-02 I-131

1. E-02 L.T. 2. E-02 L.T. 2. E-02 L.T. 2. E-02 L.T. 2. E-02 CS-134 L.T.

CS-137 2.2310.91 E-02 L.T. 2.. E-02 L.T. 2. E-02 L.T. 2. E-02 L.T. 2. E-02 E-02 L.T. 3. E-02 L.T.- 3. E-02 L.T. 3. E-02 L.T. 4. E-02 BA-140 L.T. 3.

L.T. 2. E-02 'L.T. 3. E-02 L.T. 3. E L.T. 4. E-02 L.T. 3. E-02 CE-141 L.T. 7. 'E-02 L.T. 1. E-01 L.T. 9. E-02 L.T. 1. E-01 L.T. 1. E-01 CE-144 RA-226 3.7711.51 E-01 L.T. 4. E-01 L.T. 3. E-01 L.T. 4. E-01 L.T. 4. E-01 2.1210.21 E-01 L.T. 3. E-02 L.T. 2. E-02 L.T. 3. E-02 L.T. 4. E-02 TH-228

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L SHORELINE SEDIMENT l

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l NEBRASEA PUBLIC POWER DISTRICT COOPER NUCLEAR STAT 70N l

EXPOSURE PATHWAY ~ AIRBORNE SHORELINE SEDIMENT .

(PCI/GM DRY)

STATION NUMBER 28-STATION 28 - 1.8 MI. 150 DEG. IND. .

DATE COLLECTED: 05/04 10/26 GAletA SPECTRUM ANALYSIS:

BE-7 2.5910.68 E-01 6. 2 610. 92 E-01 K-40 1.5810.16 E 01 ' 1.5510.15 E 01 MN-54 1.5410.83 E-02 L.T. 1. E-02 CO-58 L.T. 1. E-02 L.T. 1. E-02 FE-59 L.T. 2. E-02 L.T. 3. E-02 ,

CO-60 L.T. 1. E-02 L.T. 1. E-02 ZN-65 L.T. 2. E-02 L.T. 3. E-02 ER-95 L.T. 1. E-02 L.T. 2. E-02 RU-103 L.T. 1. E-02 L.T. 1. .E-02 w

'd RU-106 L.T. 8. E-02 L.T. 1. E-01 e

I-131 L.T. 3. E-02 L.T. 4. E-02 .

CS-134 L.T. 1. E-02 L.T. 1. E-02 CS-137 4.5910.76 E-02 5.8010.76 E-02 EA-140 L.T. 2. E-02 L.T. 2. E-02

+

CE-141 L.T. 2. E-02 4.2211.92 E-02 !

CE-144 L.T. 8. E-02 L.T. 9. E-02

-1.5410.18 E 00 1.7710.19 E 00 j RA-226 7.4210.74 E-01 s

TH-228 1.0810.11 E 00 I

REFERENCES ,

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1. Nebraska Public Power District, Cooper Nuclear Station Environmental ,

Radiation Monitoring Program, Annual Report, January 1, 1982- '

December 31,1982 (prepared by Teledyne Isotopes).

2. Nebraska Public Power District, Cooper Nuclear Station' Environmental Radiation Monitoring Program, Annual Report, January 1, 1983-December 31,1983 (prepared by Teledyne Isotopes).

3. Nebraska Public Power District Cooper Nuclear Station, Environmental Monitoring Program, Annual Report, January 1,1984 to December 31, 1984. (Prepared by Teledyne isotopes).

4. U.S. Department of Energy: EML 440 March 1985; EML-444 April 1989:

Environmental Measurements Laboratory, US Department of Energy, New York, New York 10014.

5. U.S. Environmental Protection Agency; Environmental Radiation Data, Report 35, July -- September 1983, Report 39, July -- September 1985; Report 40 October -- December 1984: Report 41, January -- March 1985. Report 42. April -- June 1985: Report 43, July-September 1985, Report 44-45. October-March 1986; Report 46, April-June 1986:

Report 47, July-September 1986: Report 48. October-December 1986: -

Report 49, January-March 1987. Environmental Radiation Facility, l Montgomery, Alabama.

O E

6. U.S. Department of Energy: EML 460. October 1,1986: Environmental Measurements Laboratory US Department of Energy, New York, New ,

York 10014.

7. U.S. ' Nuclear Regulatory Commission,1975 Regulatory Guide 4.8, f Environmental Technical Specifications for Nuclear Power Plants.

180

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1 APPENDIX e

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1 APPENDIX A l

LAND USE CENSUS !

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! IAND USE CENSUS

[ July 31, 1993 ,

0-3 Miles Cooper Nuclear Station (CNS) Radiological Effluent Technical Specifications (RETS) require .an annual land use census. This census identifies the location of the nearest garden that is greater than 500 square feet-in area and yields edible leafy vegetables, the location of the nearest milk animal, and the location of the nearest resident in each of the 16 meteorological sectors within 3 miles of l CNS. i In accordance with the CNS RETS, a land use census'was l performed on August 10, 1993 to determine the state and use of property at the close of July 1993. A census was not possible until this time because'of the disastrous flooding that plagued the area around the plant during the month of July and late June..

Many gardens and residences were destroyed and at the time of this census it is unclear which homes will be repaired or replaced and which ones will be abandoned. In questioning property owners about gardens, some indicated that, because of the heavy rain and large increases in raccoon and deer population in higher ground, gardens (even in higher ground) were abandoned-or mowed over even before

, the heavy flooding.

Sectors A-K were under several feet of water and few houses will be inhabited yet this year. Only 6 sectors had inhabitants within 3 miles, and only 4 sectors had gardens.

i No milk animals were found within 3 miles of CNS in 1993

! and there was no evidence of potable water use from the river.

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j LAND USE CENSUS July 31, 1993 t

0-3 Miles i

Sector Nearest Resident Nearest Garden Nrst Milk Animal A None None None B None None None C None None None D None None None E None None None F None None .None G None -None None H None None None J None None None K None None None L 1.4 miles 230.0' 1.4m1 230.0' None M 1.3mi 251.0* 1.8mi 245.0* None l N 1.0mi 266.5" None None '

P 1.6m1 293.5 1.6mi 293.5* None Q 0.9mi 307.0* None None R 2.0mi 335.0' 2.0mi 335.0* None O

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4 l APPENDIX B f

, INTERLABORATORY COMPARISON PROGRAM 4

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B-1

1993 A summary of the Results of the Analyses by Teledyne Isotopes of the EPA Cross Check Samples Compared with the Known Activity as reported by the Environmental Monitoring Systems Laboratory, Las Vegas, Nevada I

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l All results which exceed three sigma deviation from the known are l appended with a note giving the possible cause of the deviation and corrective action.taken, i

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EPA INTERLABORATORY COMPARISON PROGRAM 1993 Environmental Teledyne Collection Deviation (c)

Media Nuclide EPA Result (a) Isotopes Result (b)

Date Sr-89 15.0 1 5.0 12.67 1.15 -0.81 01/15/93 W ater Sr-90 10.0 5.0 8.33 1 1.15 -0.58 Water Gr-Alpha 34.0 9.0 17.33 1 1.15 -3.21 (d) 01/29/93 44.0 1 5.0 52.00 1.00 2.77 (e)

Gr-Beta 100.0 10.0 106.67 i 5.77 1.15 02/05/93 W ater 1 131 Water Ra-226 9.8 1.5 7.67 0.12 -2.46 (0 03/05/93 18.5 4.6 19.33 2.31 0.31 Ra-228 Gr Alpha 95.0 24.0 94.33 1.15 -0.05 04/20/93 Water Ra 226 24.9 3.7 19.00 i 1.00 -2.76 (0 Ra-228 19.0 4.8 18.33 0.58 -0.24 l Gr-Beta 177.0 27.0 150.0 1 0.00 -1.73 Sr-89 41.0 5.0 35.33 1 1.53 -1.96 l

Sr-90 29.0 5.0 27.33 i 0.58 -0.58 Co-60 39.0 5.0 40.67 1 3.51 0.58 Cs 134 27.0 5.0 23.67 i 1.53 -1.15 l

Cs-137 32.0 5.0 34.33 2.08 0.81 i

t H-3 9844.0 984.0 9366.67 152.75 -0.84 06/04/93 Water l- 15.0 5.0 16.33 1.53 0.46 06/11/93 Water Co-60 Zn-65 103.0 10.0 121.33 20.09 3.I8 (g)

Ru 106 119.0 12.0 106.33 i 15.89 -1.83 Cs-134 5.0 5.0 5.67 0.58 0.23 Cs-137 5.0 5.0 6.67 0.58 0.58 Ba-133 99.0 10.0 104.33 9.29 0.92 34.0 5.0 31.67 ! 2.52 -0.81 07/16/93 Water Sr-89 25.0 1 5.0 24.00 1 0.00 -0.35 Sr-90 Gr-Alpha 15.0 5.0 18.67 2.08 1.27 07/23/93 Water -0.08 Gr-Beta 43.0 6.9 42.67 1 2.52 Gr Alpha 19.0 5.0 17.00 0.00 -0.69 08/27/93 Air Filter 0.69 Gr-Beta 47.0 1 5.0 49.00 i 1.73 19.0 5.0 17.67 0.58 0.46 Sr-90 0.23 Cs-137 9.0 5.0 9.67 0.58 B-3

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EPA INTERLABORATORY COMPARISON PROGRAM 1993 Environmental Teledyne Collecuan Isotopes Result [b)

Date Media Nuclide EPA Resultla) 14.9 1 2.2 15.33 0.58 0.34 l 09/09/93 Water Ra-226 20.4 5.1 20.67 1 1.15 0.09 Ra-228 30.0 t 5.0 35.67 3.51 1.96 09/24/93 Milk Sr-89 1,73 -0.35 Sr-90 25.00 5.0 24.00 120.0 12.0 126.67 5.77 0.96 l-131 0.58 Cs 137 49.0 t 5.0 50.67 i 1.15 1679.0 84.0 1620.00 t 17.32 -1.22 K

117.0 12.0 103.33 5.77 -1.97 10/08/93 Water 1-131 20.0 5.0 20.33 2.08 0.12 10/29/93 Water Gr-Alpha 0.23 15.0 5.0 15.67 i 2.08 Gr-Beta 7398.0 740.0 6900.00 100.00 -1.17 11/5/93 Water H-3 l

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Footnotes: 1

, (a) EPA Results-Expected laboratory precision (1 sigma). Units are pC1/ liter for water and milk except K is in mg/ liter. Units are total pCi for air particulate filters.

(b) Teledyne Results - Average i one sigma. Units are pCl/ liter for water and milk except K is in mg/ liter. Units are total pCi for air particulate filters.

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(c) Normalized deviation from the known.

The EPA switched from Am-241 to Th-230 alpha spike. We calibrated with Th-230. l (d) using sodium nitrate to generate a self absorption curve. The EPA water, however l has minerals which have greater self-absorption than the sodium nitrate matrix. The l EPA has agreed to send us a gallon of their water which we can use to prepare a self- l l

absorption curve with Th-230. 1 (e) By oversight, we did not use the special self-absorption curve which we had l' previously derived using EPA water and Cs-137 standard. We will use the EPA curve !

in the future. We may also re-derive this curve using a water sample which the EPA l

has agreed to send us.

(0 The counting data and backgrounds were verified. Possibly some efilciencies used I were erroneously high causing low values. A less likely cause is an error in dilution.

New Ra-226 standards will be prepared. Closer monitoring of out of control efficiencies will be done and extra care in preparation of the sample will be l maintained.

(g) The calculations were checked and found to be correct, The results of six gamma emitting isotopes were reported to the EPA. The results of four were within 1 normalized deviauon; a fifth. within 2 normalized deviations. Only the Zn-65 average was outside the control limits. There is no obvious reason why one isotope should be outside the control limits, while five other isotopes were within control limits.

January 26.1994 B-5

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APPENDIX C STATISTICAL NOTES e

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APPENDIX C STATISTICAL NOTES

1. Each activity is reported in one of two forms: .

X 1 s or

<L, where l

x = value of measurement; i

s = counting error at the 95%

confidence level (2 sigma error);

L = detection limit based on 4.66 sigma error l for counter background

2. All activities are corrected to collection time except for gross alpha and gross beta.

3. Computation of means:

(a) In any statis'tical table, the values are entered as x s or <L where x = sample mean = Ix; n

n = number of data points averaged; T = average of the 2 sigma counting errors = Is n

(b) For gross beta and gross alpha results in air particulates, averaging includes values which are less than the lower limits of detection.

l The detection limit is used as the sample activity in these cases.

(c) In all cases,. if all values in an averaging group are below detec-tion limits, the highest i.f the detection limits is reported as a "less than" value without an associated tolerance. If some values are above detection limits and some are below, then: ,

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(1) The mean of the positive results is reported and the number of positives is listed in parentheses.

(d) Means are reported on a quarterly basis except for air particulate and airborne iodine data which are reported monthly. For air particulate and charcoal filters, data for samples collected on the 1st, 2nd, and 3rd day of a month are assigned to the previous month.

(e) In rounding off, numbers followed by a 5 or higher digit are rounded upwards.

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' Notification Levels l

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4 NEBRASKA PUBLIC POWER DISTRICT COOPER NUCLEAR STATION ENVIRONMENTAL RADIATION SURVEILIANCE PROGRAM NOTIFICATION LEVELS Media and Nuclide Notification Level Air Cross Alpha . . . .. . . . . . . . . . . . . . . . . 0.1 pCi/m 3

Cross Beta. . . . . . . . . . . . . . .. . . . . . . 1.0 pCi/m 3

I-131 . . . . . 3

. . . . . . . . . . . . . . . . . . . '0.31 pC1/m Cs-134 ........ . . . . . . . . . . . . . . . 3.3 pCi/m 3

Cs-137 ..... . . . . . . . . . . . .. . . . .. 6.7 pCi/m 3

Milk 1 I-131 (low level) . . . . . . . . . . . . . . . . . . 1.09 pC1/1 Sr-89 . ........... . . . . . . . . . . . . 6.04 pCi/1 Sr-90 . ........... . . . . . .. . . . . . 14.82 pCi/1 :

Cs-134 ............ . . . . . . . .. . . 20.0 pCi/1 !

Cs-137 ............ . . . . . . . . . . . 23.0 pCi/1 Croundwater Cross Alpha . . . . . . . . . . . .. . . . . . . . . 12.0 pci/1 Cross Beta. .. . . . . . . . . . . . . .. . . . .. 33.8 pCi/1 H-3 . .......... . . . . . . . . . . . . . . 6700 pci/1 .

Mn-54 ...

. . . . . . . . . . . . . . . . . . . 330 pCi/1 Fe-59 . ........... . . . . . .. . . . . 130 pCi/1 Co-58 . ............ . . . . . . . . . . . 330 pCi/1 Co-60 . ............ . . . . . . . . . . . 100 pCi/1 Zn-65 . ..... . . . . . . . . . . . . . . . . . . 100 pCi/1 l

Zr-Nb-95 ... . . . . . . . . . . . . . . . . . . . 67 . pci/1 1

l I-131 . . . . . . . . . . . . . . . . .. . . . . . . 0.67 pC1/1 Cs-134 .... . . . . . . . . . . . . .. . . . . . 10 i

pC1/1 l Cs-137 .... . . . . . . . . . . . . . . . .. . . 17 pCi/1 Ba-la-140 . ... .. . . . . . . . . . . . . . . . . 67 pCi/1 Food Products I-131 . . ................ . . . . . . 0.1 pCi/g vet Cs-134 ............ . . . . . . . . . . . 0.33 pCi/g vet Cs-137 ....................... 0.66 pCi/g vet l

l Fish Cross Beta. ..................... 10.8 pCi/g wet l Sr-89 . ....................... 3.3 pCi/g vet Sr-90 . ............ . . . . . .. . . . . 1.2 pCi/g vet- .

Mn-54 . ............ . . . . . . . . . . . 10 pCi/g vet D-1

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l Media and Nuclide Notification Level

. Fish (Continued)

Fe-59 . . . . . . . . . . . . . ........... 3.3 pci/g vet Co-58 . . .. . . . . . . . . . . . ...... . . . 10 pCi/g wet Co-60 . .. . . . . . . . . . . .... .... . . . 3.3 pCi/g vet 2n-65 . . . . . . . . . . . . . . ....... . . . 6.7 pci/g wet Cs-134 .. .. . . . . . . . . .... . . . . . . . 0.33 pCi/g vet Cs-137 .. ... . . . . . . . ... ....... 0.67 pCi/g vet River Water Cross Alpha Sus . . . . . . . . . ... ..... . . 22.0 pC1/1 Cross Alpha Dis . . . . . . .. . .... . . . . . . 27.6 pC1/1 Cross Beta Sus. . . . . . . . . . ... ....... 58.8 pCi/1 Cross Beta Dis. . . . .. . . . . .......... 88.6 pCi/1 Sr-89 . .. ... . . . . . . . . .......... 1000,0 pci/1 Sr-90 . .. ,. . . . . . . . . . .......... 100.0- pCi/1 H-3 . . . ... . . . . . . . . . .... ..s 6700

. . . . pCi/1 j Mn-54 . . ... . . . . . . . . . ... . . . . . . . 330 pCi/1 j l Fe-59 . . . .. .. . . . . . . . ......... 130 pCi/1 l Co-58 . .. .. .. . . . . . . . . ....... . . {

330 pCi/1 ;

l Co-60 . . ... . . . .. . . . . .....,.... 100 pCi/1 !

l Zn 55 . . . .. . . . . . . . . . . ......... 100 pCi/1 Ir-Nb-95 ... . . . . . . . . . ...... . . . . 67 pC1/1 I-131 . . ... . . . . . . . . . ... ... . . . . 0.67 pCi/1 Cs-134 .. .... . . . . . . . ... ....... 10 pCi/1 Cs-137 .. ... . . . . . .. . .......... 17 pC1/1 Ba - La - 140 . .. . . . . . . . . . ........ . .

67 pC1/1 Shoreline Sediment Co 60 . . . .. . . . . . . . . . ........ . . 0.1

! pCi/g dry Cs-134 ... . . . . . . . . . . ... .... . . . 0.75 pCi/g dry Cs-137 0.75 pCi/g dry l

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AFFENDIX B CONVZirTIONS USED 3

DATA TRIND GRAPES 1

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! APPENDIX E Conventions used in Data Trend Graphs

1. The data trend plots are based on statistical summaries of Section VI. ,

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2. Monthly or quarterly averages are plotted.

3. The conventions used to determine if a "less than" (<) value or detectable result is plotted are those given in Appendix C.

4. IAwest levels of detection (LLD) are noted by a straight line on l

the graphs.

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5. A typical less-than value arising from delayed counting of short-lived isotopes (such as 1-131 or Ba-140) or reduced sample size are omitted.

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MPENDIX F DETECTION CMA3ILITIES l

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DETECTION CAPABILITIES FOR l ENVIRONMENTAL SAMPLE ANALYSIS Radiochemical Methods l

Lower Limit of Detection LLD*

Water (pC1/t) Milk (pCi/t) Air Part (pCi/m 3) Food Products Fish (pci/g Broadleaf Vegetation b wet)

(pCi/g wet)

Quantity e 0.4 f - 280 m 3 0.1 g ash 4

Ash Ut. I d - -

a* 4.0 - 0.002 -

p* 1.4 - 0.003 0.25 Quantity 22 1t - 3 g ash Ash Wt. I - - - 4 71 Sr.89 1.08 2.02 - 0.03 Sr-90 0.93 1.39 - 0.03 Quantity - 12 280 m 3 20 g -

I-131 -

0.78 O.05f 0.05 -

H.3 140 - - - -

LLD - lower limit of detection based on 4.66sb; where sb is the standard deviation of the background counting rate or of the counting rate of a blank sample as appropriate (as counts per minute), specified for listed quantity and ash weight percentage.

b The minimum sensitivity will vary with the weight reduction achieved by ashing the sample. Minimum sensitivities for three typical ash weight percentages are specified.

Typical analysis quantity.

d Typical ash weight percentage of wet weight.

' Listed o and B LLD's are for weightless sample. Self-absorption in sample will increase these LLD's. Typical increases will be factors in the range 1 to 1.3 for p analysis and 1-5 for a analysis.

f Iodine collected Charcoal Cartridge air filter.

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j eLLD = lower limit of detection based on 4.66ss ; & where sb is {

the standard deviation of the background counting rate or of i i

the counting rate of a blank sample as appedbriate (as counts

) per minute). The LLD is at counting time and must be ly corrected to collection time. The LLDs given above are based F on the quantities indicated and the background count rate in '

i the absence of any radionuclides in the sample. In l 1 calculating the LLD for a radionuclide determined by gamma-ray spectrometry, the background shall. include the j typical contributions of other radio-nuclides normally present in the samples (e.g., potassium-40 in milk samples).

! occasionally background fluctuations, unavoidably small

! sample sizes, the presence of interfering nuclides, or other

! uncontrollable circumstances may render these LLD's l unachlevable. In such cases, the contributing factors will be j

identified and described in the Environmental Radiation Monitoring Program Annual Report.

j Note:All LLD's which we require are listed in this table for j Ge(L1) Gamma spectroscopy. If any nuclide is detected, l it shall be reported quantitatively whether or not it is j one of the 20 nuclides listed above.

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LOWER LIMilS OF DETECTIO2 (LLD) 0F ANALYSES FOR Ge (Li) DETECTOR LLD*

Milk, Water AirFagt fish, (pCi/kg wet) Food Pr:xiucts Shoretine Sediment (pci/t) (pci/m ) (pCi/kg wet) (pci/kg dry) 3 Quantity: 3.5 t 3600 m 400 g wet 200 g wet 600 g dry Isotope Half-life se-7 53.2 d 78 0.05 311 1243 233 K-40 1.26x109 y 140 0.06 466 932 466 Mn-54 313 d 8 0.003 31 124 31 Co 58 70.8 d 8 0.003 31 124 16 fe-59 45 d 30 0.006 260 311 31 Co-60 5.26 y 8 0.005 31 124 47 2n 65 245 d 30 0.003 260 311 31 wb-95 35.2 d 9 0.003 31 124 31 Zr-95 65 d 9 0.005 47 93 78 Ru 103 39.4 d 8 0.003 31 124 47

,, Ru-106 368 d 62 0.03 311 1243 233 b t-131 8.04 d 9 0.003 31 60 31 Cs-134 2.06 y 9 0.003 31 60 47 Cs-137 30.2 y 9 0.003 31 80 31 Ba-140 12.8 d 15 0.09 109 621 233 La-140 40.2 h 15 0.09 109 621 233 Ce-141 32.5 d 16 0.003 47 155 47 Ce-144 284 d 78 0.01 155 621 233 na-226 1600 y 100 0.08 200 800 109 Th-228 1.91 y 31 0.01 93 466 109

LLD = tower timit of detection based on 4.66s ; and where s is the standard deviation of the background counting rate or of the counting rate of a b b blank sample as appropriate (as counts per minute). The LLD is at counting time and must be corrected to collection time. The LLDs given above are based on the quantities indicated and the background count rate In the absence of any radionuclides in the sample. In calculating the LLD for a rcdionuct ide determined by gesusa-ray spectroactry, the background shalt include the typical contributions of other raJio-nuctides normatty present in the samples (e.g., potassium-40 in sitit samples).

Occasionally background fluctuations, unavoidable smatt sample size, the presence of interfering nuclides, or other uncontrollable circumstances may render these LLD's unachievable. In such cases, the contributing f actors will be identified and described in the Environmental Radiation Monitoring Program Annual Report.

Note: All LLDas which we require are listed in this table for Ge(Li) Gaauna Spectroscopy. If any nuclide is detected, it shall be reported quantitatively whether or not it is one of the 20 nuclides listed above.

O *

4 APPENDIX G SAMPLE STATION LOCATIONS AND SAMPLE TYPES i

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I

Sample Station' Sample Description - Tvoe and Location ,

No. 1 Type: (1) Air Particulate and Charcoal Filters

(*i ) Environmental Thermoluminescent Dosimetry Location: Sample (1) is taken on top of the Material Storage Warehouse on site. Sample (2) in taken approximately 130 feet south of the Materials Warehouse, NW1/4, S32, TSN, Ul6E, Nemaha County, Nebraska.

No. 2 Type: (1) Air Particulate and Charcoal Filters (2) Environmental Thermoluminescent Dosimetry Location: On north side of county road access to the south portion of the CNS site approximately 275 feet west of tne former Jefferson Broady farmstaad, SW1/4, S32, T5N, R16E, Nemaha County, Nebraskn.

4 No. 3 Type: (1) Air Particulate and Charcoal Filters (2) Environmental Thermoluminescent Dosimetry Location: Located on the north side of the Brownville State Recreation Park access 7load near water gauging station, SE1/4, S18, T5N, R16E, Nemaha County, Nebraska.

No. 4 Type: (1) Air Particulate and Charcer2 Filters

(2) Environmental Thermolumineucent Dosims Location: Located 1/2 mile south of Phelps City, Missouri, on west sidts of Highway "U", NE1/4, S2, T64N, R42W, Atchiston County, Missouri.

No. 5 Type: (1) Air Particulate and Charcoal Filters (2) En'Jironmental Thermoluminescent Dosimetry i

Location: 1/4 mile south and 1/4 mile east of Langdon, )

Missouri, on north side of road, west of i i

railroad tracks, SW1/4, S18, T64N, R41W, Atchison County, Missouri. j No. 6 Type: (1) Air Particulate and Charcoal Filters (2) Environmental Thermoluminescent Dosimetry Location: 1 mile west of the end of Missouri State Highway "U", south side of road, SW corner of the intersection, NW1/4, S34, T64N, R42W, Atchison County, Missouri.

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Sample Station Sample Description - Type and Location No. 7 Type: (1) Air Particulate and Charcoal Filters I (2) Environmental Thermoluminescent Dosimetry l 3 Location: 300 yards east of Highway 67 at Nemaha on J north side of road, SW1/4, S6, T4N, R16E, Nemaha County, Nebraska.

No. 8 Type: (1) Air Particulate and Charcoal Filters (2) Environmental Thermoluminescent Dosimetry Location: 1/2 mile north, 3/4 mile west and 3/4 mile north of Nemaha on west side of road adjacent to the M. T. Moore Transmission Line, NE1/4, S35, T5N, R15E, Nemaha County, Nebraska.

No. 9 Type: (1) Air Particulate and Charcoal Filters (2) Environmental Thermoluminescent Dosimetry 1

Location: 4 miles north of Highway #136 on Highway #67.

1 mile east of Highway #67 and 1/2 mile north on west s_Je of road, SW1/4, S26, T6N, R15E, Nemaha County, Nebraska.

No. 10 Type: (1) Air Particulate and Charcoal Filters (2) Environmental Thermoluminescent Dosimetry Location: 1 mile north of Barada, Nebraska, in SW corner of intersection, NE1/4, S14, T3N, R16E, Richardson County, Nebraska.

No. 11 Type: (1) Water - Ground Location: Plant well water supply header at well pits, NW1/4, S32, T5N, R16E, Nemaha County, Nebraska.

No. 12 lype: (1) Water - River Location: Sample (1) will be taken from the Missouri River immediately upstream from the Plant Intake Structure (River Mile 532.5).

No. 20 Type: (1) Environmental Thermoluminescent Dosimetry Location: On NNW boundary of NPPD property, about 20

, yards east of county road, SE1/4, S30, T5N, l R16E, Nemaha county, Nebraska.

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4 4

Sample j Station Samole Descriotion - TVoe and Location 1

) No. 28 Type: (1) Water - River '

(2) Fish i (3) Sediment'from Shoreline i

Location: Sample (1) will be taken below the Plant i Discharge Flume Outfall (River Mile 530).

j Sample (2) will be taken from the Missouri River downstream from the plant site near l River Mile 530. Sample (3) will be taken from the Nebraska bank of the river 1/2 to '

l 3/4 miles downstream from the plant site.

i

! No. 35 Type: (1) Fish

] (2) Food Products - Broadleaf Vegetation l Location: Sample (1) will be taken from the Missouri River at about 1 to 3 miles above the intake i structure. Sample (2) will be taken about i 1/4 mile south of the Brownville State

Recreation Area in Sector A.

i

]

No. 42 Type: (1) Milk (Other Producer) j Location: 1 mile south, 1-1/4 miles east of Barada, Nebraska, south side, M. Wissman farm, NW1/4, '

j S30, T3N, R17E, Richardson County, Nebraska.

l No. 44 Type: (1) Environmental Thermoluminescent Dosimetry (2) Food Products - Broadleaf Vegetation Location: 2 miles south of Auburn stoplight, 1/4 mile south of Auburn Country Club on Highway #73-75, 1/2 mile east of Highway #73-75 at fenceline north of county road,SE1/4, S27, T5N, R14E, Nemaha County, Nebraska.

No. 47 Type: (1) Water - Ground Location: Taken at Falls City Municipal Water Supply Wells south of Rulo, Nebraska (from Main Header Flow Meter), SW1/4, S20, T1N, R18E, i I

Richardson County, Nebraska.

No. 56 Type: (1) Environmental Thermoluminescent Dosimetry Location: 1 and 1/4 mile south and west of Langdon, Missouri, on Highway "U", on the right side -

of the highway, Bill Gebheart farm, NW1/4, S23, T64N, R42W, Atchison County, Missouri.

G-3

i Sample Station Samole Description - Tvoe and Location No. 58 Type: (1) Environmental Thermoluminescent Dosimetry Location: 3 miles south of Brownville, Nebraska, on

.) county road, at the southeast corner of the

'I intersection, with the farm road leading to Sample Station No. 2, SE1/4, S31, TSN, R16E, Nemaha County, Nebraska.

No. 59 Type: (1) Environmental Thermoluminescent Dosimetry Location: 1 mile SSE of the CNS Elevated Release Point, 50 yards west of the levee at the south boundary of NPPD property, SE1/4, S32, TSN, R16E, Nemaha County, Nebraska.

No. 66 Type: (1) Environmental Thermoluminescent Dosimetry Location: 2 miles south of Nemaha, Nebraska, on Highway 67 - east side of Highway. Mrs. Lola Kennedy farm, NW1/4, S19, T4N, R16E, Nemaha County, l Nebraska.

2 No. 67 Type: (1) Environmental Thermoluminescent Dosimetry Location: 2 miles west of Brownville, Nebraska, on U.S.

Highway #136, then north 1-1/2 miles on county road, then east 1/2 mile, on north side of road, Walter Parkhurst farm, NE1/4, t S11, T5N, R15E, Nemaha County, Nebraska.

No. 71 Type: ( f) Environmental Thermoluminescent Dosimetry Location: 2 miles east of Phelps City, Missouri, on U.S. Highway #136, then south 1-1/2 miles on county road, ther. west 1/4 mile, Tom Boatman farm, SE1/4, S6, T64N, R41W, Atchison County Missouri.

No. 79 Type: (1) Environmental Thermoluminescent Dosimetry Location: 1-7/8 miles south of Brownville, Nebraska, on the east side of the paved road. NPPD property, SE1/4, S30, T5N, R16E, Nemaha County, Nebraska.

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l Sample Station Eamole Description - Tvoe and Location No. 80 Type: (1) Environmental Thermoluminescent Dosimetry Location: 2-1/8 miles south of Brownville, Nebraska, on the east side of the paved road. NPPD g l

property, NE1/4, S31, T5N, R16F, Nemaha 1 i County, Nebraska.

No. 81 Type: (1) Environmental Thermoluminescent Dosimetry Location: 2-3/8 miles south of Brownville, Nebraska, in i the northeast corner of the intersection of l the paved county road and the CNS access road. NPPD property, NE1/4, S31, T5N, R16E, Nemaha County, Nebraska.

No. 82 Type: (12 Environmental Thermoluminescent Dosimetry Location: 7/8 mile south of Cooper Nuclear Station in a l field. NPPD property, SW1/4, S32, TSN, R16E, l Nemaha County, Nebraska.

No. 83 Type: (1) Environmental Thermoluminescent Dosimetry Location: 2-1/4 miles south of Nemaha, Nebraska, on ,

! Highway 67, then east 1 mile to the junction of the driveway and county road on the east l

side of the driveway. Leroy Kennedy. NE1/4, S19, T4N, R16E, Nemaha County, Nebraska.

No. 84 Type: (1) Environmental Thermoluminescent Dosimetry Location: 2-1/2 miles west of Brownville, Nebraska, on the south side of U.S. Highway 136, west of Locust Grove School. Bruce L. Solie. NW1/4, S22, T5N, R15E, Nemaha County, Nebraska.

No. 85. Type: (1) Environmental Thermoluminescent Dosimetry Location: 1 mile east of Brownville, Nebraska, on U.S.

Highway 136, then north 1/4 mile on the east side of the county road. Scott Leseberg.

NE1/4, S33, T65N, R42W, Atchison County, Missouri.

No. 86 Type: (1) Environmental Thermoluminescent Dosimetry Location: 1 mile west of Phelps City, Missouri, on U.S.

l Highway 136, then north 1-1/2 miles on Highway "D", west side. Mrs. Olin (Mildred)

Harmes. SE1/4, S22, T65N, R43W, Atchison 9 County, Missouri.

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Sample Station Samole Description - Tvoe and Location No. 87 Type: (1) Environmental Thermoluminescent Dosimetry Location: 1 mile west of.Phelps City, Missouri, on U.S.

g Highway 136, then south 1/2 mile on a county r road and then 3/4 mile west on a county road to the end of the road. Robert Graf. SW1/4, S3, T64N, R42W, Atchison County, Missouri.

No. 88 Type: (1) Environmental Thermoluminescent Dosimetry Location: 1 mile west of'Phelps City, Missouri, on U.S.

Highway 136, then south 2 miles at the end of the county road. David Meyerkorth, NW1/4, S11, T64N, R42W, Atchison County, Missouri.

No. 89 Type: (1) Environmental Thermoluminescent Dosimetry Location: 2-1/2 miles south of Phelps City, Missouri, on Highway "U", then 1/2 mile. west in the southeast corner of the county road l intersection. Gertrude Rosenbohm, NE1/4, S14, T64N, R42W, Atchison County, Missouri.

No. 90. Type: (1) Environmental Thermoluminescent Dosimetry Location: 1-1/2 miles west and 3/4 mile south of Langdon, Missouri, on Highway "U", then 1/4 g mile west. Garth Green. SW1/4, S23, T64N, F R42W, Atchison County,. Missouri.

No. 91 Type: (1) Environmental Thermoluminescent Dosimetry Location: 1/2 mile west of Rock Port, Missouri, on'the south side of the intersection of U.S.

Highway 136 and U.S. Highway 275 at the water tower. Mildred Cook. NW1/4, S28, T65N, R41W, Atchison County, Missouri.

No. 94 Type: (1) Environmental Thermoluminescent Dosimetry Location: 1/4 mile south of Langdon, Missouri, on the west side of the road. Max Peeler. NE1/4, S24, T64N, R42W, Atchison County, Missouri.

1 G-6 1

l 1

l I

l-l l Sample l Station' Samole Description - Tvoe and Location No. 96 Type: (1) Food Products'- Broadleaf Vegetation Location: Taken 1 mile south of Brownville, Nebraska, ,

from the road ditch bordering the paved road in Sector.R. SE1/4, S19, T5N, R16E, Nemaha County, Nebraska.

No. 99 . Type: -(1) Milk (Nearest Producer)

Location: 1-1/4 miles south of Shubert, Nebraska, on.

the west side of Highway 67. James Zentner dairy. NE1/4, S24, T3N, R15E, Richardson County, Nebraska.

No. 100 Type: (1) Milk (Other Producer) i Location: 2 miles south and 1 mile west of Shubert, Nebraska. Dick' James dairy. SW1/4,:S23, T3N, R15E, Richardson County, Nebraska.

I "I '

l NOTES: Sample Station numbers missing from the sequence l are inactive or discontinued Sample Stations.

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4 G-7 i l

l T

I APPENDIX H 1

p

SUMMARY

OF DOSES TO A MEMBER OF THE PUBLIC OFF-SITE l

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DOSES TO MAXIMUM INDIVIDUAL (MREM), JANUARY-DECEMBER 1993 COOPER NUCLEAR STATION JANUARY-DECEMBER 1993 SPECIAL IDCATION #1 SITE BOUNDARY AT 0.67 MILES N T. BODY CI-TRACT BONE LIVER KIDNEY THYROID LUNC SKIN PATINAY ADULT 5.83E-03 6.73E-03 5.71E-03 5.76E-03 5.71E-03 5.91E-03 6.05E-03 6.80E-03 TEEN 5.88E-03 6.70E-03 5.71E-03 5.79E-03 5.71E-03 5.98E-03 6.21E-03 6.80E-03 CHILD 6.04E-03 6.33E-03 5.71E-03 5.82E-03 5.71E-03 6.23E-03 6.11E-03 6.80E-03 INFANT 5.74E-03 5.74E-03 5.71E-03 5.73E-03 5.71E.03 6.81E-03 5.97E-03 6.80E-03 COOPER NUCLEAR STATION JANUARY-DECEMBER 1993 SPECIAL IDCATION #2 NEAR. RESIDENCE AT 0.90 MILES NW PATHWAY T. BODY CI-TRACT BONE LIVER KIDNEY THYROID LUNG SKIN ADULT 2.15E-03 2.47E-03 2.11E-03 2.13E-03 2.11E-03 2.33E-03 2.19E-03 2.61E-03 TEEN 2.17E-03 2.45E-03 2.11E-03 2.13E-03 2.11E-03 2.41E-03 2.23E-03 2.61E-03 CHILD 2.22E-03 2.33E-03 2.11E-03 2.15E-03 2.11E-03 2.69E-03 2.20E-03 2.61E-03 INFANT 2.12E-03 2.12E-03 ,

2.11E-03 2.12E-03 2.11E-03 3.34E-03 2.17E-03 2.61E-03

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Summary of Doses to Maximum individual at the Site Boundary, Resulting From Exposure to Radioactivity Discharged in Liquid Effluents, January . December 1993, Cooper Nuclear Station Dose, mrem Total Period Skin Bone Liver Body Thyroid Kidney Lung CI-LLI 1st 1.83E-04 1.26E-01 7.54E-03 3.71E-02 1.55E.04 2.02E-03 7.62E-04 3.76E-02 Quarter

2nd

" 6.75E_05 1.53E-03 4.79E-03 4.48E-03 5.74E_05 9.62E-04 4.23E-04 3.28E-02 Quarter 3rd 1.10E.05 2.14E-03 1.55E-03 1.39E-03 9.35E-06 4.53E-04 1.70E-04 3.61E-03 Quarter 4th Quarter 3.18E.05 1.10E-03 1.72E-03 1.50E-03 2.70E-05 5.13E-04 1.90E.04 5.22E-03 Totals For 1993 2.93E-04 1.31E-01 1.56E-02 4.45E-02 2.49E-04 3 95E-03 1.55E-03 7.92E-02 O

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