Text

Annual Radiological Environ Operating Rept for 1996
	ML20138C576
Person / Time
Site:	Cooper
Issue date:	12/31/1996
From:	Latham A; TELEDYNE BROWN ENGINEERING CO.
To:	;
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ML20138C561	List: ML20138C556; ML20138C576;
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4 Nebraska Public Power District Cooper Nuclear Station Annual Radiological Environmental Operating Report Radiological Environmental Monitoring Program January 1,1996 - December 31,1996 USNRC Docket Number 50-298 BG Prepared by TELEDYNE ISOTOPES

ga uhn ZM)he[

R G37307.DS4

.l ATTACHMENT 3 LXST OF NRC COMMITMEITIS l 1

- l Correspondence No: NLS970065 The following table identifies those actions committed to by the District in this document.

Any other actione discussed in the submittal represent intended or planned actions by the District. They are described to the NRC for the NHC's inforn.ation and are not regulatory l commitments. Please notify the Licensing Manager at Cooper Nuclear Station of any questionc-regarding this document or any associated regulatory commitments.

COMMITTED DATE COMMITMENT OR OUTAGE None N/A i

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I l PROCEDURE NUMBER 0.42 l REVISION NUMBER 4 l PAGE B OF 9 l

W TELEDYNE BROWN ENGINEERING Environmental Services 60 VAN BUREN AVENUE PO box 1235 WESTWOOD, NEW JERSEY 076751235 (201) 6fA 7070 FAX (201) 664 6586 REPORT TO NEBRASKA PUBLIC POWER DISTRICT COLUMBUS. NEBRASKA RADIATION ENVIRONMENTAL MONITORING PROGRAM COOPER NUCLEAR STATION NEMAHA COUNTY, NEBRASKA ANNUAL REPORT JANUARY 1 TO DECEMBER 31,1996 PREPARED BY TELEDYNE BROWN ENGINEERING ENVIRONMENTAL SERVICES 50 VAN BUREN AVENUE WESTWOOD, NEW JERSEY 07675-1235 REPORT APPROVED BY: /

4LAN R. Igy, MANAGER ENVIRONMENTAL ANALYSIS DEPARTMENT

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i PREFACE !

l This report covers the period of January 1 through December 31, 1996. 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 Brown Engineering - Environmental ;

, Services and forwarded to Nebraska Public Power District.

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TABLE OF CONTENTS PAGE Pivfam.......................................................................................................................... 11 IJstofThNea.............................................................................................................. vi IJst of F1gures. . . .. . . . . . . . . . . .. . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . .. . . . . . . . . . . . . . .. . . . . . . . . .. .. . . . . . . . . . . . .. . . . .. vil 1

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1. I n t ro 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 si on . .. . .. .. . .. . . ..... .. .. . .. .. . . . . . .. . .. . . . . . . . . . . .. .. . . . . . . . . . . . . . . . .. .. . . . . . . . . .. . . . . . . . .. . . . . . . . . .. .. .. . . . . . . . . . .

A. Program Objectives and Data Interpretation 11 Atmospheric Nuclear Detonations V. Radiological Environmental Monitoring Program Summary Table 3...12 REMPS TABLE 3 ANNUAL

SUMMARY

OF ALL STATIONS OF THE ............13 ISOTOPES OF INTEREST WITH YEARLY AVERAGE j ACTIVrIY, NUMBER OF DETECTIONS PER TOTAL ;

STATION WITH HIGHEST AVERAGE ACTIVITY, AVERAGE OF CONTROL STATION AND INCLUSIVE DATES OF ANALYSES VI. I DISCUSSION. IMPACT ON THE ENVIRONMENT, GRAPHS OF .................. 25

- RESULTS AND STATISTICAL TABLES FOR EACH QUARTER A and B. AIR PARTICULATES - GROSS BETA - GROSS ALPHA .................... 26 C C HARC OAL FI LTE R. I - 13 1 . . .. ....... . ... ............ . .. ..... . .. .. . .... . .. . .. ... .... ... ... .. . ... .. .. 41 l D. COMPOSITE OF AIR PARTICUI. ATE FII" F,RS - GAMMA .............. 49 i E. FISH...................................................................................................................57 i F. M ILK - NEAREST PRODU C E R ................................................ ................. 63 i j

G. MILK - OTHER PRODUCERS ................................................................72

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TABLE OF CONTENTS )!

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PAGE H. GROUNDWATER ..........................................................................................81

1. RIVER WATER ..............................................................................................87 J. THERMOLUMINESCENT DOSIMETERS ..........................................96 K. FOOD - BROADLEAF VEGETATION ...................................................... 104 L SH O RE LI N E S E DI M E NT .......... ... .. .... ................. ... ... .. . . .. ... .... .. . . ... .. ... . .. . .. 1 10 l

VI 1. C OM PLETE DATA TAB LES ............................................................................... . 1 15 i

A.B.C. AIR PARTICULATE FILTERS - GROSS ALPHA, .........................116 !

GROSS BETA,1-131 D. COMPOSITE - AIR PARTICULATE FILTERS ...............................137 l 1

I E. FISH............................................................................................................148 ,

F. M I LK - NEAREST PRODU C E R .......................................................... 151 G. MI LK - OTH ER PROD U CE RS ............................................................. 158 H . G RO U NDWATE R ... .. .. . . .. . .. .... .. ... ... . .. ... . .. .... ..... . .. . .. . .. . .. . .. . .. .... .. . .. . ... .. . ... .. .. 161

1. RIVE R WATE R . . .. . .. . .. ... . . . . .. . .. . .. . .. ... . . . . . . . .. . . . . .. . . . . .. . .. . .. . .. . . . . .. . . . . . . . . . . . . . .. .. . . . . . 164 J. TH ERMOLUM1NESCENT DOSIMETERS .....................................171 K. FOOD - BROADLEAF VEGETATION .................................................176 L SH O RE LI NE SE DI M E NT ............................................................ ......... 190

-l REFERENCES.. . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . .. .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ... . . . . . . . . . . . . . . . . .

IV

TABLE OF CONTENTS PAGE VIII. Appendix A LAND U S E C E N S U S . ... .... . . . . .. .......... ........ . ..... ... .. . .... . .. ......... .. .. ... . .. .. . .. . .... .A- 1 B If(TERLABORATORY COMPARISON PROGRAM ...........................B-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. DE'IECI ION CAPABIllHES. . ..... ... ...... . ... . ... . . .... .. . ... . .. .. .. .. . . .. . .. .. . . .. . . .. .. . .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 I . NON-REMP ANALYSES.. . . .. . . . . .. . . .. .. . . .. . . . .. . . . . .. . . .. . . . . . . . . . . .. . . . . . . . . . . . . . . ... . . . . . . . . . 1- 1 9

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, LIST OF TABIJC8 i

TABLES TITLE PAGE j 1 Sampling schedule and analysis. 5 ;

1996, Cooper Nuclear Station i I

2 Sample Station location with 7 Distance and Direction from the Elevated Release Point (ERP) 3 Summary of Radiological Monitoring 13 Program 4

A to L Statistical Summary Tables - Section VI pages25-114 By Sample Type A to L Data Tables - Section VII pages 115-191 By Sample Type and Station

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LIST OF FIGURES i 1

Mh T. ills fagt

'1. Maps of sampling stations, Cooper Nuclear Station.............................. 9.10

-A-1 Air Particulate, Gross Beta - CNS....................................... 28,29,30.50.51,52 ~

A-2 Air Particulates, Gmss Beta - ERAMS........................................... 31,32,53,54 B-1 Air Particulates, Gross Alpha - CNS.................................. 28,29,30,50,51,52 C-1 Airborne - Iodine, CNS.. . . .. . . . . .. .. .... . . . .. .. . . .. .. . . . .. .. .... . .. .. . . . . .. .. . . . . . .. . . . . . . . . . . . . . . . . . 42,43,44 D-1 Air Particulates - Ce-144 - CNS........................................... 28.29,30,50,51.52 1

D-2 Air Particulates Ce- 144 - EML............... ................................................ 50,51,52 ,

3 E-1 Fish, Gross Beta, K-40, Sr-90 and Cs-137 - All Locations.......... 58.59, 60 I F-1 Milk - Nearest Producer, K-40, I-131 and Cs-137........................ 64,65,66 F-2 Milk - Nearest Producer, Sr-89, Sr-90 and Elem. Oa................... 67,68,69 G-1 Milk - Commercial Producers, K-40. I-131 and Cs-137.............. 73,74,75 l G-2 Milk - Commercial Producers, Sr-89, Sr-90 and Elem. Ca......... 76,77,78 H- 1_ Groundwater - All Locatione, Gross Alpha, Beta and H-3............. 82,83,84 1-1 River Water - All 14 cations, Gross Alpha. Beta................................. 88,89,90 1-2 River Water - All locations, Sr-89, Sr-90 and H-3........................ 91,92,93 J-1 'Ihermoluminescent Dosimetry - All 14 cations............................... 97,98.99 !

K-1 Food - Broadleaf Vegetation - All locations.........................................105,106 l

L-1 Shoreline Sediment - K-40,1-131, Cs-134 and Cs-137...............111,112 i

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1 L INTRODUCTION This report contains a complete tabulation of data collected during the period January through December 1996, for the operational Radiological Environmental Monitoring Program performed for the Cooper Nuclear Station (CNS) of the Nebraska Public Power District (NPPD) by Teledyne Brown Engineering - Environmental Services.

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

power on June 25,1974 and 100% power on 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 contractor's laboratory where there exists special facilities required for measurements of extremely low levels of radioactivity. From 1971 through

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

. On November 1,1978 Hazelton Environmental Sciences Corporation 4

(HESC) assumed responsibility for the program. Prior to November 1,1978 Hazelton Environmental Sciences operated as NALCO Environmental

. Sciences. Teledyne Isotopes (now. trading as Teledyne Brown Engineering -

Environmental Services) again assumed responsibility for the analyses effective January 1,1979 through December 31,1996.

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II.

SUMMARY

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I 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 I (NPPD) for 1996. l Part V, Table 3 presents the yearly summary of the program with the total l number of samples of each type analyzed, the yearly average for all samples. l

the number of detections per total number of samples, the station. xith the 1 highest average, the average of the control station, and the inclusive dates of the analyses.

Fart 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 1 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 4 number.

i The 1996 radiological environmental measurements for CNS indicates ;

that there has been no residual fallout resulting from the explosion and fire j

i. at the Chernobyl Reactor in the Soviet Union which occurred on April 26, 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. l

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III. SAMPLING AND ANALYBES PROGRAM. STATIONS AND MAPS The 1996 sampling and analysis program is described in Table 1.

Teledyne Brown Engineering - Environmental Services has a comprehensive quality assurance / quality control program designed to assure the reliability of data obtained. The results for the 1996 Intercomparison Program conducted by the EPA Environmental Monitoring Systems Laboratory in Las Vegas, Nevada and Analytic's. Inc., are contained in Appendix B.

Sampling locations are summarized in Table 2. 'Ihe type or status of

- 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 active sampling locations are given in Appendix G.

The annual land use census for 1996 is described in Append!x A.

There were no milk animals found within three miles of CNS in 1996 and no evidence of potable water use from the river. The nearest garden to CNS is in sector Q 0.9 miles from CNS. Gardens were found in 9 sectors during 1995 and in 1996. The nearest resident to CNS is in sector Q, 0.9 miles from CNS.

All of the required 1996 environmental monitoring, including sam-pling and analysis, was conducted as specifled in Table 3.21.F.1 of the CNS Technical Specifications, except as noted below:

COLLECDON STATION PATHWAY SAMPLE PERIOD REASON 9 Airborne Air Particulate 03/26 04/02 Top of air horn vibrated loose 9 Airborne Air Particulate 04/02-04/09 Top of air horn vibrated loose 01 Airborne Air Particulate & 05/14-05/21 Air horn had vibrated Charcoal Filter loose 03 Airborne Air Particulate & 05/21-05/28 Flood waters around the Charcoal Filter station !

l Airborne Air Particulate Air horn malfunction 10 06/04-06/11 03 Airborne Air Particulate & 06/18-06/25 Area flooded from the Charcoal Filter river 03 Airborne Air Particulate & 06/25 07/02 Air pump inoperable due Charcoal Filter to flooding )

03 Airborne Air Particulate & 7/02-07/09 No sample due to flood Charcoal 4

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COLLECTION STATION PATHWAY SAMPLE PERIOD REASON ,

l' 06 Airborne Air Particulate 09/17-09/24 Airhorn came loose l 02 Mrborne Air Paruculate & 09/17-09/24 Pump not operating due to I Charcoal loss of electricity l

^;

05 Airborne Air Particulate & 10/01-10/08 Sample not collected due !

. Charcoal to pump failure 2.

9. Mrborne Air Particulate & 10/01-10/08 Sample not collected due l Charcoal to pump failure 01 Airborne Air Particulate 10/08-10/15 AP had very light deposit )

01 Airborne Air Particulate 10/15-10/22 AP had very light deposit 02 Airborne Air Particulate & 10/22-10/29 Pump failure Charcoal 07 Airborne Mr Particulate 10/22-10/29 Top of airhorn had ,

vibrated loose 09 Airborne Mr Particulate 11/26-12/03 AP not collected due to mechanical problem with filter holder 28 Ingestion Fish 10/24 Bottom feeder not avail-able >

35 Ingestion Fish 10/24 Bottom feeder not avail-able 35 Ingestion . Vegetation 06/25 Could not collect due to river flooding 35 Waterborne River Water 02/06 Collected at station 35: icy river condition at station 12.

35 Waterborne River Water 08/06 Alternate site used due to flooding '

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l TABLE 1 I

NEBRASKA PUBLIC POWER DISTRICT COOPER NUCLEAR STATION ENVIRONMENTAL RADIATION SURVEILLANCE PROGRAM SAMPLING SCHEDULE AND ANALYSIS l ONCE PER 7 DAYS l Sample Tyne Station Nos. Analyses i

Airborne - Particulate 1 - 10 Gross alpha, beta. Gam- l ma isotopic on quarterly '

composite of each sta-tion and on each sample in which gross beta ac-tivity is > 10 times the yearly mean of control samples l Airborne - Iodine 1-10 1-131 l l ONCE PER 15 DAYS l Samole Tvoe .S.lappu Nos. Analyses Milk - Nearest Producer 61 1-131 (low lev'el) :

focak pasture only) Gamma isotopic l Sr-89, Sr-90 Elem.

Ca. on monthly composite l ONCE PER 31 DAYS l 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 5

2 TABM 1 NEBRASKA PUBLIC POWER DISTRICT-COOPER NUCLEAR STATION ENVIRONMENTAL RADIATION SURVEILLANCE PROGRAM 2

I SAMPLING SCHEDULE AND ANALYSIS 1

l ONCE PER 31 DAYS l i-Samnie Tyne Stntion Nos. Analyses

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. 1' Milk - Nearest Producer 61 1-131 (low level) inon-peak pasture Sr-89, Sr-90

, l season)

Elem. Ca Gamma isotopic j l

Food Products - Broad . 35,96,101, I-131 I

leaf Vegetation (when 102 Gamma isotopic available) l ONCE PER 92 DAYS l l

Samole Tvoe Station Nos. Analyses i

Background Radiation 1 - 10, 20, 44 TLD Readout j 56,58,59,66, (gamma dose) l 67, 71, 79 - 91, !

94 i Groundwater 11,47 Gross alpha, beta Gamma isotopic Tritium i Milk - Commercial and 99,100 1-131 (low level) i Other Milk Producers Sr-89, Sr-90 ;

Elem. Ca Gamma isotopic l 1

l 2 TIMES / YEAR l l l

Sample Tyne Station Nos. Analyses

- Fish (Summer and Fall) 28,35 Gross beta !

Sr-89, Sr-90 l Ganuna isotopic )

Shoreline Sediment 28 Gamma isotopic l

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. TABLE 2

, NEBRASKA PUBLIC POWER DISTRICT

COOPER NUCLEAR STATION -;

BROWNVILLE, NEBRASKA )

DISTANCE AND DIRECTION FROM "i1IE ELEVATED RELEASE POINT (ERP) !

, TO THE SAMPLE STATION LOCATIONS l 1

l D D J STATION" DISTANCE DIRECTION SAMPLEa NUMBER (MILES) (DEGREES) CLASSIFICATION C TYPES 1 0.10 225 IND AP,C TL 2 0.75 225 IND AP,C,TL 3 2.5 338 IND AP,C TL 4 3.0 43 IND AP,C.TL 5 3.5 102 IND AP,C.TL 6 3.0 165 IN~D AP,C,TL )

7 2.5 230 IND AP,C,TL ;

8 2.5 260 IND AP,C,TL )

9 7.3 335 IND AP,C,TL !

j 10 10.0 160 IND AP,C.TL 11 0.15 225 IND WG 1

12 0.10 360 CON WR 20 0.96 315 IND TL 28 1.8 150 IND WR, FI, SH

.: 35 2.0 350 IND AND CON FI, VT 4 44 10.3 270 CON TL '

47 25.8 154 IND WG 56 1.9 118 IND TL 58 1.1 219 IND TL 59 1.0 189 IND TL 61 3.5 326 IND M (Nearest) 66 4.5 200 IND TL 67 4.8 325 IND TL 71 4.3 71 IND TL 79 0.85 299 IND TL 80 0.75 284 IND TL 81 0.80 265 IND TL 82 0.80 176 IND TL 83 4.4 189 IND TL 84 4.4 297 IND TL 85 3.1 3 IND TL 86 4.6 16 IND TL 87 1.75 20 IND TL 88 1.75 63 IND -TL 89 2.0 86 IND TL 90 2.25 134 IND TL 91 6.9 54 IND TL 7

l TABIJC 2 1

NEBRASKA PUBLIC POWER DISTRICT COOPER NUCLEAR STATION

- BROWNVILLE, NEBRASKA i

DISTANCE AND DIRECTION FROM THE ELEVATED RELEASE POINT (ERP)

TO THE SAMPLE STATION LOCATIONS 1 STATION" DISTANCE D DIRECTION SAMPLEa j NUMBER (MILES) (DEGREES) CLASSIFICATION C TYPES 94 3.6 108 IND TL l 4

96 1.25 334 IND VT 99 10.5 189 IND M (Other) i 100 11.5 197 IND M (Other) i 101 13.3 73 IND VT '

102 11.4 234 CON VT

.a Only currently active Sample Stations are listed. Sample Station numbers missing from the sequence are for inactive or discontinued locations.

b Approximate distance and direction are specifled with respect to the re-actor Elevated Release Point (ERP).

c Classiccation codes: IND = indicator: CON = control.

d Environmental sample type codes: AP = air particulate filters: C = char-coal cartridges: FI = fish: M = milk; SH = shoreline sediment: TL = envi-ronmental thermoluminescent dosimeters: VT = broadleaf vegetation: WG

= groundwater: WR = river water, s

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i IV. DISCUSSION A. Program Oblectives 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 detec-tion. In addidon the source of the environmental radiation must be estab-lished. Sources of environmental radiation include: )

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

(2) Terrestrial, primordial radionuclides from the environment (K240, Ra-226, Th-228).

(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 prod- j ucts). l (4) Releases from nuclear power plants such as CNS (fission products '

and neutron activation products).

(5) Fallout from the Chernobyl Nuclear Reactor Accident.

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 moni-toring program are related to events known to cause elevated levels of radia-tion in the environment, e.g., atmospheric nuclear detonations or abnormal !

plant releases.

11 Atmosoberte 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 1-131 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 1-131 was detected from radiogases from any sources.

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 1-131 in charcoal filters and milk samples were measured. Additjonally, 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

. Northern Hemisphere.

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V, RADIOLOGICAL ENVIRONMNTAL MONITORING PROGRAM TAmms Presented in Table 3 are the radiological environmental monitoring pro-gram summaries (REMPS) generated from the reports of analyses performed during 1996 for the NPPD sampling and analyses program. The REMPS ta-bles conform to the requirements of Table 1 in Regulatory Guide 4.8 (Reference 6).

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

I station is specified the comparable results of the control are listed.

l 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 statiens 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 I h!.gh levels of activity and the source. The dose impact on the population can thus be evaluated.

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RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM SUMMARIES (REMP)

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SUMMARY

PATifWAY - AIRBORNE COMPIIATION - ANNUAL

SUMMARY

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ANALYSIS NO UMIT OF ALL INDICATOR SAMPLES LOCAT10N WITH llIGIIEST MEAN CONTROL IDCATION NON- REPORI1NG PERIOD DETEC110N MEAN X E-00 MEAN X E-00 MEAN X E-00 ROUTINE MEAN X E-00 RANGE STA110N FRACTION RANGE RANCE FRACITON STATION DESCRIFI1ON FRACllON I-131 511 LT 0.03000 0

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TABLEO RADIOLOGICAL ENVIRONMEffTAL MONITORING PROGRAM

SUMMARY

PATHWAY - GAMMA EXPOSURE COMPIIATION - ANNUAL

SUMMARY

NEHRASKA PUBLIC POWER DISTRICT SAMPLE - ENVIRONMENTAL TT.D CONTROL - STATION 44 - 10.3 MI. 270 DEG. CON. COOPER NUCLEAR STATION UNITS - mR ANALYSIS NO LIMIT OF ALL INDICATOR SAMPIES LOCATION %Tlh HIGHEST MEAN CONTROL LOCATION NON- REPORTING PERIOD DETECTION MEAN X E-00 MEAN X E-00 ' MEAN X E-00 ROUTINE MEAN X E-00 RANGE STATION FRACTION RANGE RANGE FRAC 110N STAT 10N DESCRIITON FRACI1ON

'IT.D 128 2mR Total 73.1 mR 79.8 mR 79.4 0 12/26/95-01/08/97 Exposure / year 65.3- 79.8 G6 004/004 44 004/004 123/128 STATION 66 - 4.5 M1. 200 DEG. IND. STAT 10N 44 - 10.25 MI. 270 DEG. CON.

20.0 mR 19.9 mR Average 32 18.3 mR 18.2- 21.7 17.8- 20.6 0 12/26/95-01/08/97 Exposure / 16- 20 66 004/004 44 004/004 quarter 032/032 STA'llON 66 - 4.5 MI. 200 DEG. IND. STAT 10N 44 - 10.25 MI. 270 DEG. CON.

.O k

TABLE 3 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM

SUMMARY

PATHWAY - INCESUON COMPILAT10N - ANNUAL

SUMMARY

NEBRASKA PUBLIC POWER DISTRICT SAMPLE - BROADLEAF 'IERRESTRIAL VEGETATION CONTROL - STADON 102 - 11.4 MI. 234 DEG. CON. COOPER NUCLEAR STAT 10N UNTTS - PCl/GM WET ANALYSIS NO IlMIT OF ALL INDICATOR SAMPLES LOCATION %THI filGilEST MEAN CON 1ROL IDCATION NON- REPORTING PERIOD DETECTION MEAN X E.00 MEAN X E-00 MEAN X E-00 ROUTINE MEAN X E-00 RANCE STADON FRACTION RANGE RANGE FRACTION _

STATION DESCRIPTION FRACTION I-131 60 0.0500 LT 0.05 0 05/15/96-10/08/96 LT 0.004- LT 0.05 000/060 BE-7 60 1.20 1.96 2.25 0 05/15/96-10/08/96 0.384- 5.73 102 020/020 0.587- 5.73 060/060 STAT 10N 102 - 11.4 MI. 234 DEG. CON.

K-4 0 60 0.9300 5.33 5.96 0 005/15/96-10/08/96 2.00- 8.49 35 017/017 3.46- 7.91 060/060 STATION 35 - 2.0 MI. 350 DEG. CON. & IND I-131 60 0.05000 LT 0.0500 0 05/15/96-10/08/96 9 LT 0.007- LT 0.05 N

000/060 CS-137 60 0.1600 0.0549 0.0661 0 05/15/96-10/08/96 0.00784 0.104 96 Ou = , 0 0.0369- 0.0953 011/060 STATION 96 - 1 J5 Mt. 334 DEG. IND.

RA-226 60 0.8000 0.447 0.447 0 05/15/96-10/08/96 0.375- 0.518 35 002/017 0.375 0.518 002/060 STA110N 35 - 2.0 MI. 350 DEG. CON. & IND Til-228 60 0.4700 0.119 0.142 0 05/15/96-10/08/96 0.0202- 0.244 35 007/017 0.0460- 0.206 027/060 STATION 35 - 2.0 MI. 350 DEG. CON. & IND

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l TAB 12 3 RADIOLOGICAL ENVIRONMENTAL MONfTORING PROGRAM

SUMMARY

PAT 1(WAY - WATERDORNE COMPILATION - ANNUAL

SUMMARY

NEBRASKA PUBLIC POWER DISTRICT l SAMPLE - WATER - RIVER CONTROL - STATION 12 - 0.1 Mt. 360 DEG. CON. COOPER NUCLEAR STATION UNITS - PCI/llTER ANALYSIS NO IJMIT OF ALL INDICATOR SAMPLES LOCATION WTTIl IIIGIIEST MEAN CONTROL LOCATION NON- REIVRTING PERIOD DETECTION MEAN X E-OO MEAN X E-OO MEAN X E-OO ROtJTINE MEAN X E-OO RANGE STATION FRACTION RANGE RANCE FRACT10N STAT 10N DESCRIPr10N FRACTION GR-A DIS 24 4.0 3.7 3.9 3.5 0 01/02/96-12/03/96 2.9- 5.5 28 005/012 3.1- 5.5 2.9- 4.4 009/024 STATION 08 - 1.8 Mt.150 DEG IND. 004/012 GR-A SUS 24 4.0 4.8 6.2 3.3 0 01/02/96-12/03/96 0.65- 30 28 009/012 0.75- 30 0.65- 9.6 017/024 STATION 28 - 1.8 ML 150 DEG. IND. 008/012 GR-B DIS 24 1.8 11.0 11.0 11.0 0 01/02/96 12/03/96 8.3- 13.0 12 012/012 8.6- 13.0 8.6- 13.0 024/024 STATION 12 - 0.10 Mt. 360 DEG. CON. 012/012 GR-B SUS 24 1.8 12 13 10 0 01/02/96-12/03/96 1.6- 5.8 28 011/012 1.6- 58.0 1.8- 34 022/024 STAT 10N 28 - 1.8 ML 150 DEG. IND. 011/012 SR-89 24 1.1 LT 2.0 LT O.95 0 01/02/96-12/03/96 9 LT O.4- LT 2.0 LT O.500- LT 2.0 A 000/024 000/012 SR-90 24 0.930 LT O.900 0 01/02/96-12/03/96 LT O.200 LT O.900 000/024 K-40 24 140.0 55 55 0 01/02/96-12/03/96 i 55- 55 55 55 l 001/024 001/012 I-131 24 9.00 LT 6.0 LT 6.0 0 01/02/96-12/03/96 LT 3.0- LT 6.0 LT 4.0- LT 6.0 000/024 000/012 CS-137 24 9.00 LT 5.0 LT 5.0 0 01/02/96-12/03/96 LT 3.0- LT 5.0 - LT 3.0- LT 5.0 000/024 000/012 1

11-3 8 140. LT 100- 0 01/02/96-12/03/96 l LT 100. LT 100

000/008 i

VL DISCUSSION, IMPACT ON THE ENVIRONMENT GRAPHS OF RESULTS FROM 1977 - 1996 AND 4

STATISTICAL TABLES EACH QUARTER 1

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i 25

A and B. AIR PARTICUIATE SAMPmS - GROSS BETA AND GROSS ALPHA h (See Tables A A-4. B B-4)

]

STATIONS 01 to 10 Air particulat.es were collected on membrane filters at ten locations (01-10). The filters were changed weekly and analyzed for gross beta and gross j1 alpha activities. Quarterly composites are analyzed for gamma emitting iso-

. topes, t The average gross beta activity of all stations for each quarter of 1995 and 1996 is summarized below:

4

1995 First Quarter 0.028 pC1/Cu. M.

Second Quarter 0.017 pC1/Cu. M.

hird Quarter 0.028 pCi/Cu. M.

Fourth Quarter 0.030 pCi/Cu. M.

Average 1995 0.026 pCi/Cu. M.

1996 First Quarter 0.025 pCi/Cu. M.

Second Quarter 0.017 pCi/Cu. M. ,

'Ihird Quarter 0.023 pCi/Cu. M.

0.025 pCi/Cu. M.

Fourth Quarter Average 1996 0.022 pCi/Cu. M.

5 The level of beta activity was at normal environmental levels in 1996 3 showing the natural seasonal variations. There was a slight decrease in the level of gross beta activity during the first quarter; the second quarter of 1995 was the same as 1996 and a slight decrease from the third quarter of -

i 1995: the fourth quarter also decreased as shown in Table A-4. The increase and decline in activity often occurs and is attributed to natural phenomena.

The gross alpha activity continued low and close to the limits of detec-don. 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.

4 m 26

. + , , , - - , - . - , .~

~

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

STATIONS 01 to 10 Figure A1, B1 shows the gross beta, gross alpha and Cc-144 activity in the environs of CNS. The results for 1986 through 1996 are on the second and third pages of Figure A-1, B-1. The gross beta activity in 1996 was simi-lar to previous years in which there were no nuclear atmospheric weapons tests or nuclear accidents. The gross alpha activity remained low and near the normal detecuon level. Cesium-144 was below the level of detection.

Figure A-2 shows the gross beta activity in air samples through April 1989 at Jefferson City, Missouri as reported by the Environmental Radiation Monitoring System (ERAMS) of the US Environmental Protection Agency.

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

Montgomery, Alabama. The measurements by ERAMS were made after a i waiting period which may explain the somewhat lower results because of i decay of the isotopes having a shorter half-life. Measurements of Ce-144

were no longer reported because the activity has approached the limit of de-tection by the analytical techniques now used.

1 i

n 9

3 27

l FIGURE Al, B1 l

AIR PARUCUIATES - CNS ALPHA AND BETA MOKniLY AVERAGE - ALL LOCA~nONS CE-144 QUARI'ERLY AVERAGE - ALL LOCKnONS 1

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FIGURE Al, DI AIR PAIGCUIATES - CNS ALPHA AND BETA MOh'THLY AVERAGE - All LOCATIONS CE-144 QUARTERLY AVERAGE - ALL LOCA110NS 1

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1 1 1 1 1 O 0 0 0 0 0 0 0 O

0 e a

~

TABIA A-1 WEEKLY COLLECDONS FIRST QUARTER 1996 NEBRASKA PUBtJC POWER DIS 11UCT.

COOPER NUCIE.AR STATION EXPOSURE PATHWAY - AIRBORNE AIR PARTICUIATE ML1ERS pct /Cu. M. !

SAMPLE STATION MOfffMLY

SUMMARY

MOKIHLY

SUMMARY

MOKIHLY

SUMMARY

FIRST QUARTER

SUMMARY

NUCLIDE NUMBER 01/02-01/30 01/30-02/27 02/27-04/02 01/02-04/02 GROSS BETA 01 2.9 i 0.5 E-02 2.5 i 0.7 E-02 2.1 i O.3 E-02 2.5 i 0.6 E-02 ,

02 2.9 i 0.5 E-02 2.4 i 1.4 E-02 2.010.3 E-02 2.410.8 E-02 03 2.710.5 E-02 2.9 i 1.5 E-02 2.110.4 E-02 2.5 i 0.9 E-02 04 2.6 i 0.2 E-02 2.510.8 E-02 2.010.5 E-02 2.3 i O.6 E-02 05 2.410.5 E-02 2.5 i 1.1 E-02 1.8 i 0.3 E-02 2.2 i 0.7 E-02 06 2.7 i 0.5 E-02 2.6 i 1.2 E-02 2.1 i 0.5 E-02 2.4 i 0.8 E-02 07 2.810.6 E-02 2.410.9 E-02 1.7 i 0.4 E-02 2.2 i 0.8 E-02 3 08 3. I i 0.2 E-02 3.0 i 1.4 E-02 2.3 i O.4 E-02 2.810.8 E-02 09 3.010.5 E-02 2.9 i 1.4 E-02 1.8 i 0.9 E-02 2.5 i 1.1 E-02 10 3.31 '. 4 E-02 2.7 i 1.2 E-02 2.110.5 E-02 2.7 i 1.1 E-02 AVERAGE Ol-10 2.E i 0.6 E-02 2.6 i 1.1 E-02 2.010.5 E-02 2.5 i 0.8 E-02 ALL STA110NS i and a Grand i and s i

~.

TABLE A-2 WEEKLY COLLECTIONS SECOND QUARTER 1996 NEBRASRA PUBLIC PONER DISTRICT COOPER NUCLEAR STATION EXPOSURE PATIMERY - AIRBORNE AIR PARTICUIATE FILTERS pC1/Cu. M.

SAffLE STATIC 4 MONTRLY SUD99RY MottTHLY St20ERRY MottTRLY SUteRRY SECOND QUARTER SUBOERRY NUCLIDE NUMBER 04/M -04/31 04/30-05/28 05/28-07/02 04/02-07/02 GROSS BETA 01' 1.8 i 0.4 E-02 1.6 i 0.4 E-02 1.8 i 0.3 E-02 1.8 i 0.3 E-02 02 1.7 i 9-1 E-32 1.6 i 0.5 E-02 1.9 i 0.3 E-02 1.7 i 0.3 E-02 03 1.6 1 0.2 E-02 1.6 1 0.3 E-02 1.8 1 0.3 E-02 1.7 1 0.2 E-02 04 1.5 1 0.2 E-02 1.6 i 0.2 E-02 1.9 i 0.3 E-02 1.7 i 0.3 E-02 05 1.4 i 0.3 E-02 1. 6 i 0.3 E-02 1.9 i 0.3 E-02 1.7 i 0.3 E-02 06 1.6 i 0.1 E-02 1.7 i O.3 E-02 1.7 i 0.3 E-02 1.7 i 0.3 E-02 07 1.5 i 0.4 E-02 1.5 i 0.2 E-02 1.9 i 0.3 E-02 1. 6 i 0.3 E-02 08 2.1 1 0.4 E-02 1.6 1 0.2 E-02 1.9 i 0.4 E-02 1.9 1 0.4 E-02 09 1.4 1 0.4 E-02 1.5 i 0.3 E-02 1.8 i 0.2 E-02 1.6 i O.3 E-02 10 1.6 1 0.2 E-02 1.7 i 0.3 E-02 1.7 1 0.9 E-02 1.7 i 0.5 E-02 AVERAGE 01-10 1.6 1 0.3 E-02 1.6 i 0.3 E-02 1.8 1 0.4 E-02 1.7 i 0.3 E-02 ALL STATIONS Y and s Grand Tt and a

.________._._..______._-m.. ._. _.---e.-- _ .__ _

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

, TABLE A WEEKLY COLLECTIONS - THIRD QUARTER 1996-NEBRASKA PUBLIC POWER DISTRICT-COOPER NUCLEAR STATION EXPOSURE PATHWAY - AIRBORNE AIR PARTICULATE FILTERS pCi/Cu. M.

SAM LE STATION NONTHLY SUtetARY MONTHLY SUlttARY MONTHLY SUPMARY THIRD QUARTER SUt9(ARY muctine gunmen 07/02-07/30 07/30-09/03 09/03-10/01 07/02-10/01 GROSS BETA - 01 1.7 1 0.3 E-02 2.3 1 1.0 E-02 2.4 i 1.2 E-02. 2.2 1 0.9 E-02 02 1.9 1 0.3 E-02 2.3 i 0.7 E-02 3.1 i 1.2 E-02 2.3 1 0.8 E-02 03 2. .) i 1.0 E-02 2.1 1 0.7 E-02 2.5 i 1.0 E-02 2.3 1 0.8 E-02 04 2.1 1 0.4 E-02 2.7 i 1.4 E-02 2.5 1 0.7 E-02 2.4 i 1.0 E-02 05 1.8 1 0.4 E-02 2.4 i 1.1 E-02 2.4 i 0.7 E-02 2.2 1 0.8 E-02 06 1.8 i 0.2 E-02 2.4 i 0.9 E-02 2.1 1 0.9 E-02 2.1 1 0.7 E-02 07 2.0 1 0.3 E-02 2.4 i 0.7 E-02 2.6 i 1.2 E-02 ' 2.3 1 0.8 E-02 08 1.8 i 0.3 E-02 2.5 i 1.1 E-02 2.7 i 1.3 E-02 2.4 i 1.0 E-02 09 1.7 1 0.2 E-02 1.9 i 0.5 E-02 2.3 i 1.1 E-02 2.0 1 0.7 E-02 10 2.0 1 0.4 E-02 2.9 i 1.6 E-02 2.8 i 1.1 E-02 2.6 i 1.2 E-02 AVERAGE 01-10 1.0 1 0.4 E-02 2. 4 i 1.0 E-02 2.5 i 1.0 E-02 2.3 i 0.9 E-02 ;

ALL STATIONS i I and s Grand Tc and s -

4 i

k

')

F i

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

[

's ,

TABLE A-4 WEEKLY COLLECTIONS FOURTH QUARTER 1996 NEBRASKA PUBLIC POWER DISTRICT -

COOPER NUCLEAR STATION EXPOSURE PATHWAY - AIRBORNE t

AIR PARTICUIATE FILTERS pCi/Cu. M. .

SAMPLE STATION MONTHLY SUfetARY MONTHLY SUP9tARY MONTRLY

SUMMARY

FOURTH QUARTER SUtStARY NUCLIDE NUMBER 10/01-10/29 10/29-12/03 12/03-12/30 10/01-12/30 GROSS BETA 01 2.5 1 0.3 E-02 1.7 i 0.4 E-02 2.3 i 0.7 E-02 2.1 1 0.6 E-02 02 2.3 1 0.2 E-02 2.6 1 0.4 E-02 3.0 i 0.8 E-02 2. 6 i 0.6 E-02 03 2.1 1 0.5 E-02 2.4 1 0.5 E-02 3.0 1 0.9 E-02 2.5 i 0.7 E-02 ,

04 2.3 i 0.3 E-02 2.0 1 0.4 E-02 2.5 i 0.6 E-02 2.3 1 0.4 E-02 !

05 2.3 1 0.4 E-02 2.3 1 0.4 E-02 2.9 i 1.1 E-02 2.5 i 0.7 E-02 06 2.5 i 0.5 E-02 2.9 i 0.5 E-02 3. 6 i 1.1 E-02 3.0 1 0.8 E-02 _

07 1.5 1 0.4 E-02 2.4 i 0.6 E-02 3.9 i 0.8 E-02 2.3 1 0.8 E-02 .

' N 08 2.2 1 0.3 E-02 2.2 i O.5 E-02 3.1 1 0.9 E-02 2.5 i 0.7 E-02 09 2.1 1 0.3 E-02 2.2 1 0.4 E-02 2.8 i 0.5 E-02 2.4 i 0.5 E-02 10 3.1 i 0.6 E-02 2.0 i 0.9 E-02 2.7 i 0.8 E-02 2.5 i O.8 E-02 AVERAGE 01-10 2.3 1 0.5 E-02 2.3 i O.5 E-02 2.9 i 0.8 E-02 2.5 1 0.7 E-02 ALL STATIONS I and a Grand'I and s i

f I

i

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

- . .,. . .- . . - . . ,- _ - . . . + -

TABt2 3-1 WEEKLY COUIC'I1ONS F1RST QUARTER 1996 NEBRASKA PUBUC POWER DISTRICT COOPER NUCIIAR STATION EXPOSURE PATHWAY - AIRBORNE AIR PARI 1CUIEIE FILTERS pCl/Cu. M.

SAMPLE STATION MONTHLY

SUMMARY

MONTHLY

SUMMARY

MONIHLY

SUMMARY

FIRST QUARTER

SUMMARY

- NUCUDE ' NUMBER 01/02-01/30 01/30-02/27 02/27-04/02 01/02-04/02 GROSS AIPHA 01- 2.3 i 1.4 E-03 2.510.7 E-03 2.610.7 E-03 2.5 i 0.9 E-03 02 2.210.8 E-03 2.0 i 1.0 E-03 2.010.4 E-03 2.110.7 E-03 03 2.3 i 1.1 E-03 2.6 i 1.3 E-03 3.0 i 1.3 E-03 . 2.7 i 1.2 E-03 04 2.3 i O.8 E-03 2.1 i 1.3 E-03 2.6 i O.7 E-03 2.4 i O.9 E-03 05 2.010.7 E-03 2.010.8 E-03 2.310.7 E-03 2.1 i 0.7 E-03 06 2.210.4 E-03 2.310.5 E-03 2.5 i O.9 E-03 2.310.6 E-03 ~

g 07 2.810.8 E-03 2.71 1.3 E-03 2.6 i 1.0 E-03 2.7 i 1.0 E-03

"~ 08 2.7 i 1.2 E-03 2.5 i 0.8 E-03 2.9 i 1.4 E-03 2.7 i 1.1 E-03 09 3.410.9 E-03 2.1 i O.3 E-03 2.210.3 E-03 2.610.8 E-03 10 2.6 i O.9 E-03 2.8 i 1.1 E-03 2.5 i 0.5 E-03 2.610.8 E-03 AVERAGE Ol-10 2.5 i 0.9 E-03 2.4 i O.9 E-03 2.5 i 0.8 E-03 2.5 i O.9 E-03 ALL STATIONS i iand a Grarwiianda ja~ g 5.

\ s n . ,,

~

t

TABLE D-2 WEEKLY COLLECTIONS SECOND QUARTER 1996 -

NEBRASKA PUBLIC POWER DISTRICT C00FFR NUCLEAR STATION EXPOSURP PATHNAY - AIRBORNE AIR PAR.'ICUIATE FILTERS PC1/Cu. M.

8 AMPLE STATION MONTHLY SUtetARY MONTELY '4UDetARY MONTRLY SUletARY SECOND QUARTER SUIOGLRY NUCLIDE NUMBER 04/02-04/30 04/30-05/28 05/25-07/02 04/02-07/02 GROSS ALPBA 01 2.4 i 1.0 E-03 1.7 i 0.3 E-03 2.2 1.0.6 E-03 2.1 1 0.7 E-03 02 1.9 i 1.0 E-03 2.1 1 0.8 E-03 2.5 i 1.1 E-03 2.2 i 1.0 E-03 03 1.7 i 0.9 E-03 2.4 i 0.5 E-03 2.3 1 0.8 E-03 2.1 i 0.8 E-03 04 2.2 1 0.4 E-03 1.9 i 0.3 E-03 1.8 i 0.6 E-03 1.9 i 0.5 E-03 05 2.7 i 0.8 E-03 1.9 1 0.3 E-03 2.8 i 1.3 E-03 2.5 i 1.0 E-03

$ 06 2.8 i 0.8 E-03 2.0 1 0.4 E-03 2.1 1 0.9 E-03 2.3 i 0.8 E-03 07 2.4 i 1.2 E-03 2.0 1 0.1 E-03 2.0 1 1.1 E-03 2.1 1 0.9 E-03 08 2.3 1 0.4 E-03 2.0 1 0.3 E-03 2.2 1 0.4 E-03 2.2 i 0.4 E-03 09 1.8 i 0.7 E-03 2.2 i 0.2 E-03 1.9 i 0.7 E-03 2.0 1 0.6 E-03 10 2.4 i 1.3 E-03 1.8 i 0.3 E-03 1.8 1 0.8 E-03 2.0 t 0.8 E-03 AVERAGE 01-10 2.2 i O.9 E-03 2.0 i 0.4 E-03 2.2 1 0.9 E-03 2.1 1 0.8 E-03 ALL STATIONS l

I and a . Grand Tc and a i

[

TABLE B-3 WEEKLY COLLECTIONS - THIRD QUARTER 1996 NEBRASKA PUBLIC POWER DISTRICT-t-

COOPER NUCLEAR STATION t

EXPOSURE PATHWAY - AIRBORNE AIR PARTICU1 ATE FILTERS pCi/Cu. M.

SAMPLE STATION MONTHLY SIMOULRY MONTHLY SUleULRY MONTHLY

SUMMARY

ww-t Ynr m-n THIRD QUARTER

SUMMARY

07/02-07/30 07/30-09/03 09/03-10/01 07/02-10/01 GROSS ALPHA 01 1.7 i 0.4 E-03 1.6 1 0.6 E-03 1.7 i 0.5 E-03 1.7 i 0.5 E-03 02 2.5 i 0.8 E-03 1.9 i 0.6 E-03 3.2 i 1.1 E-03 2.5 i 0.9 E-03 03 2.1 1 0.1 E-03 1.5 1 0.5 E-03 2.1 1 0.8 E-03 1.8 1 0.6 E-03 04 1.9 i 0.7 E-03 2.5 i 1.0 E-03 1.8 i 0.6 E-03 2.1 1 0.8 E-03 05 2.4 1 0.6 E-03 2.2 1 0.8 E-03 2.0 1 0.3 E-03 2.2 1 0.6 E-03 06 1.9 1 0.2 E-03 1.6 i 0.4 E-03 2.1 i 1.1 E-03 1.8 i 0.6 E-03 g 07 2.2 1 1.0 E-03 2.4 i 1.1 E-03 2.2 i 1.0 E-03 2.3 1 1.0 E-03

08 2.5 i 1.6 E-03 1.7 i 0.7 E-03 2.3 1 0.8 E-03 2.1 i 1.1 E-03 09 1.8 1 0.4 E-03 1.9 1 0.9 E-03 2.0 i 1.0 E-03 1.9 i O.8 E-03 10 1.9 i 0.5 E-03 2.5 i 1.0 E-03 2.1 1 0.4 E-03 2.2 1 0.7 E-03 AVERAGE 01-10 2.1 1 0.7 E-03 2.0 1 0.8 E-03 2.1 i 0.8 E-03 2.1 1 0.8 E-03 ALL STATIONS ,

x and s Grand x and a i

TABLE B-4 WEEKLY COLLECTIONS FOURTH QUARTER 1996 NEBRASKA PUBLIC POWER DISTRICT COOPER NUCLEAR STATION EXPOSURE PATHWAY - AIRBORNE AIR PARTICULATE FILTERS pCi/Cu. M.

SAMPIE STATION MONTHLY SUDetARY MONTHLY SUtttARY MONTHLY

SUMMARY

FOURTH CUARTER SUBetARY NUCLIDE NUMBER 10/01-10/29 10/29-12/03 12/03-12/30 10/01-12/30 GROSS ALPHA ~ 01 2. 6 i 1.3 E-03 1.8 1 0.8 E-03 2.0 i O.6 E-03 2.0 1 0.6 E-03 02 3.0 i O.7 E-03 2.2 i 1.0 E-03 2.8 1 0.8 E-03 2.6 i 0.9 E-03 03 2.1 1 0.3 E-03 2.0 1 0.7 E-03 2.2 1 0.8 E-03 2.1 1 0.6 E-03 04 2. 8 i 1.3 E-03 1.9 i 0.9 E-03 2.5 1 0.9 E-03 2.4 i 1.0 E-03 05 2.2 1 0.3 E-03 1.9 i 0.9 E-03 3.1 1 1.0 E-03 2.4 i 0.9 E-02 06 2.8 i 0.9 E-03 2.5 1 0.7 E-03 3.0.i 1.2 E-03 2.7 i 0.9 E-03 07 g 1.5 i 0.5 E-03 2.1 1 0.6 E-03 3.0 i 1.0 E-03 2.3 1 0.9 E-03 08 2.4 i 0.5 E-03 2.1 i 0.5 E-03 3.2 i 1.1 E-03 2.5 i 0.8 E-03 09 1.8 1 0.4 E-03 1.6 i 0.5 E-03 2.4 1 0.8 E-03 2.0 1 0.7 E-03 10 2.0 i 1.2 E-03 1.8 i 0.9 E-03 2.8 i 0.7 E-03 2.2 1 0.8 E-03 AVERAGE 01-10 2.0 0.6 E-03 2.0 1 0.7 E-03 2.7 i 0.9 E-03 2.3 i 0.8 E-03 ALL STATIONS Grand"x and s I and s

1

. C AIR RADIOIODINE - CHARCOAL FILTERS (See Tables C-1 through C-41 STATIONS 01 TO 10 Charcoal filters used in series with air particulate filters were collected weekly during 1996 at stations 01 through 10 and monitored for radiolodine.

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 1996.

Figure C-1 plots the results of I-131 as monitored in charcoal filters and summarized monthly in 1996 compared with previous years. Results for 1996 were below the normal limits of detection indicating no atmospheric effect from the operations of CNS.

l l

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p 41

^

j-FIGURE C-1 AIRBORNE I-131 MONTIILY AVERAGE - ALL LOCATIONS 1

0.1 n

likM " s \A.!/k.sif b k...bd.. A>WL A s I e $ .

I O.01 1

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0.001 1977 1978 1979 1980 1981 1982 1983 1984 .1985

-+- AIRDORNE I 7 Average 11D

l FIGURE C-1 AIRBORNE I-131 MONTIILY AVERAGE - ALL LOCATIONS 1

A 11 0.1 :

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45

TABLE C-2 WEEKLY COLLECTIONS SECOND QUARTER 1996 NEBRASKA PUBLIC POWER DISTRICT COOPER NUCLEAR STATION EXPOSURE PATHWAY - AIRBORNE CHARCOAL FILTERS pCi/Cu. M.

SAMPLE STATION NONTHLY SUf9tARY MONTRLY SUP9fARY MONTRLY SUtttARY QUARTERLY SU99cLRY DET./

NUCLIDE NUMBER 04/02-04/30 04/30-05/28 05/28-07/02 04/02-07/02 TOTAL RANGE IODINE-131 01 L.T. 3. E-02 L.T. 3. E-02 L.T. 3. E-02. L.T. 3. E-02 0/12 (L.T.2.-L.T.3.)E-02 02 L.T. 3 E-02 L.T. 3. E-02 L.T. 3. E-02 L.T. 3. E-02 0/13 (L.T. 2. -L.T . 3. ) E-0 2 03 L.T. 3. E-02 L.T. 3. E-02 L.T. 3. E-02 ..r. 3. E-02 0/10 (L.T.2.-L.T.3.)E-02 04 L.T. 3. E-02 L.T. 3. E-02 L.T. 3. E-02 L.T. 3. E-02 0/13 (L.T.2.-L.T.3.)E-02

.g 05 L.T. 2. E-02 L.T. 2. E-02 L.T. 2. E-02 L.T. 2. E-02 0/13 (L.T.1.-L.T.2.)E-02 06 L.T. 3. E-02 L.T. 3. E-02 L.T. 3. E-02 L.T. 3. E-02 0/13 (L.T.2.-L.T.3.)E-02 07 L.T. 3. E-02 L.T. 3. E-02 L.T. 3. E-02 L.T. 3. E-02 0/13 (L.T.2.-L.T.3.)E-02 08 L.T. 3. E-02 L.T. 3. E-02 L.T. 3. E-02 L.T. 3. E-02 0/13 (L.T.2.-L.T.3.)E-02 09 L.T. 3. E-02 L.T. 3. E-02 L.T. 3. E-02 L.T. 3. E-02 0/13 (L.T. 2. -L.T. 3. ) E-0 2 10 L.T. 2. E-02 L.T. 2. E-02 L.T. 2. E-02 L.T. 2. E-02 0/13 (L.T.1. -L.T. 2. ) E-0 2 01-10 L.T. 3. E-02 L.T. 3. E-02 L.T. 3. E-02 L.T. 3. E-02 --

DET./ TOTAL 0/40 0/38 0/48 0/126 0/126 -

RANGE (L.T.1.-L.T.3.)E-02 (L.T.1.-L.T.3.)E-02 (L.T.1.-L.T. 3. ) E-02 (L.T.1. -L.T. 3. ) E (L.T.1.-L.T.3.)E-02

_ m_.-._. 4 ~ ._ - . _

_ .m . . m... - . . . - _ . . . _ - . - = . - . _ _ . .~_mm_. ___ . .. . .m__. .. u -< . _ . . . .

TADLE C-3 i.

WEEKLY COLLECTIONS THIRD QUARTER 1994 NEBRASKA PUBLIC POWER DISTRICT -

1 COOPER NUCLEAR STATION

^

EXPOSURE PATHWAY - AIRBORNE CHARCOAL FILTERS pCi/Cu, M. . -

- SAMPLE STATION MONTHLY SUPMARY MONTHLY SUtmARY QUARTERLY SUp9tARY 5

MONTHLY SUI 99ARY DET./

NUCLIDE NUMBER 07/02-07/30 07/30-09/03 09/03-10/01 07/02-10/01 TOTAL RANGE h

IODINE-131 01 L.T. 2. E-02 L.T. 3. E-02 L.T. 2. E-02 L.T. 3. E-02 0/14 (L.T.I.-L.T.3.)E-02 02 L.T. 2. E-02 L.T. 3. E-02 L.T. 3. E-02 L.T. 3 E-02 0/14 (L.T.1.-L.T.3.)E-02 ;

i 03 L.T. 2. E-02 L.T. E-02

3. L.T. 2. E-02 L.T. 3. E-02 0/14 (L.T.1.-L.T.3.)E-02 04 L.T. 2. E-02 L.T. 3. E-02 L.T. 2. E-02 L.T. 3. E-02 0/14 (L.T.1.-L.T.3.)E-02 <

k I 05 L.T. 2. E-02 L.T. 2. E-02 L.T. 2. E-! L.T. 2. E-02 0/14 (L.T.1.-L.T.2.)E-02 ?

1 06 L.T. 3. E-02 L.T. 2. E-02 L.T. 2. E-02 L.T. 3. E-02 0/14 (L.T.2.-L.T.3.)E-02 i I'

h n' L.T. 3. E-02 L.T. 3. E-02 L.T. 2. E-02 L.T. 3. E-02 0/14 (L.T.2.-L.T.3.lE-02

00 L.T. 3. E-02 L.T. 3. E-02 L.T. 2. E-02 L.T. 3. E-02 0/14 (L.T. 2. -L.T. 3. ) E-02 I 09 L.T. 3. E-02 L.T. 3. E-02 L.T. 2. E-02 L.T. 3. E-02 0/13 (L.T.2.-L.T.3.)E-02 10 L.T. 2. E-02 L.T. 2. E-02 L.T. 2. E-02 L.T. 2. E-02 0/14 (L.T.1. -L.T. 2. ) E-02 i !

01-10 L.T. 3. E-02 L.T. 3. E-02 L.T. 3. E- 02 L.T. 3. E-02 -

, DET./ TOTAL 0/39 0/50 0/39 0/128 --

[

j RANGE (L.T.1.-L.T.3.)E-02 (L.T.1.-L.T.3.)E-02 (L.T.1. -L.T. 3. ) E-02 (L.T.I.-L.T.3.)E-02 --

(L.T.I.-L.T.3.)E-02 i 1

1 I

h f

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

' TABLE C-4 WEEKLY COLLECTIONS FOURTH QUARTER 1996 NEBRASKA PUBLIC POWER DISTRICT COOPER NUCLEAR STATION EXPOSURE PATHWAY - AIRBORNE CHARCOAL FILTERS pCi/Cu. M.

SAMPLE STATION MONTHLY SUteUJtY MONTHLY SUPMARY MONTHLY SUtelARY QUARTERLY SUIMARY DET./

NUCLIDE NUMBER 10/01-10/29 10/29-12/03 12/03-12/30 10/01-12/30 TorAL RANGE

. IODINE-131 01 L.T. 3. E-02 L.T. 3. E-02 L.T. 3. E-02 L.T. 3. E-02 0/13 (L.T.1.-L.T.3.)E-02 02 L.T. 3. E-02 L.T. 3. E-02 L.T. 3. E-02 L.T. 3 E-02 0/12 (L.T.1.-L.T.3.)E-02 03 L T. 3. E-02 L.T. 3. E-02 L.T. 3. E-02 L.T. 3. E-02 0/13 (L.T.1. -L.T. 3. ) E-02 04 L.T. 3. E-02 L.T. 3. E-02 L.T. 3. E-02 L.T. 3. E-02 0/13 (L.T.1. -L.T. 3. ) E-02 05 L.T. 2. E-02 L.T. 1 E-02 L.T. 1 E-02 L.T. 2. E 0/12 (L.T.1. -L.T.2. ) E-02

.. 06 L.T. 2. E-02 L.T. 2. E-02 L.T. 2. E-02 L.T. 2. E-02 0/13 ' (L.T.1. -L.T.2. ) E-02 A

0/13 07 L.T. 2. E-02 L.T. 2. E-02 L.T. 2. E-02 L.T. 2. E-02 (L.T.1. -L.T. 2. ) E-02 08 L.T. 2. E-02 L.T. 2. E-02 L.T. 2. E-02 L.T. 2. E-02 0/13 (L.T.1. -L.T. 2. ) E-02 09 L.T. 2. E-02 L.T. 2. E-02 L.T. 2. E-02 L.T. 2. E-02 0/12 (L.T.1. -L.T.2. ) E-02 10 L.T. 2. E-02 L.T. 2. E-02 L.T. 1. E-02 L.T. 2. E-02 0/13 (L.T.1. -L.T.2. ) E-02 01-10 L.T. 3. E-02 L.T. 3. E-02 L.T. 3. E-02 L.T. 3. E-02 0/127 DET./ TOTAL 0/37 0/50 0/40 0/127 RANGE (L.T.I.-L.T.3.)E-02 (L.T.I.-L.T.3.)E-02 (L.T.1.-L.T.3.)E-02 (L.T.1.-L.T.3.)E-02 --

(L.T.1. -L.T. 3. ) E-02

i i

D. COMPOSITES OF AIR PARTICULATE FILTERS - GAMMA (See Tables D-1 and D-21 1 STATIONS 01 TO 10 I

Air Particulate Filters, which were collected weekly, were composited l for each station for a quarterly gamma spectral analysis during the four quar-ters of 1996.

Beryllium-7, a naturally occurring cosmogenic nuclide, was detected in 40 of 40 samples at a level of 0.12 pCI per cubic meter which is similar to ;

the levels of past years. Potassium-40, also a naturally occurring nuclide, was detected in three of 40 samples at a level near the normal level of detection.

1 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 Energy because the artificial nuclides such as Ce-144, have reached the lim-its of detection by the analytical techniques now used.

~

l l

l i

l 49

FIGURE D-1 AIR PARilCUIATES - CNS ALPHA AND BETA MONTHLY AVERAGE - ALL LOCA110NS CE-144 QUARTERLY AVERAGE - ALL LOCATIONS O.1 l k O.01

+N V* D %A\,f a d .

8 9. L 21 : _

...Ax -

Wv

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

- - + - Cr-B C Gr-A A Ce-144 4 --- Cc-144 AVE LLD

FIGURE D-1 AIR PARUCUIAIES - CNS ALPliA AND BETA MONTTILY AVERAGE - ALL LOCATIONS CE-144 QUAIUERLY AVERAGE - ALL LOCNDONS I

0.1 11 W f %yk MJ E 0.01 4 hm i

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~'

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TABt2 G).1 1996 QUARTERLY REPORT NEBRASKA PUBUC POWER DISTRICT COOPER NUCLEAR STATION EXPOSURE PATHWAY - AIRBORNE COMPOSITE OF WEEKLY AIR PARTICULATE FIL'IERS pct /Cu. M.

SAMPLE STATION FIRST QUARTER SECOND QUARIER NUCUDE NUMBER 'IMIRD QUARTER FOURTH QUARIER 01/02-04/02 04/02-07/02 07/02-10/01 10/01-12/30 BE-7 01-10 Meanistd.dev. 1.29 i 0.1 E-01 1.3610.2 E-01 1.3310.2 E-01 8.23 i 1.4 E-02 det./ total 10/10 10/10 10/10 10/10 range (1.15- 1.55]E-01 (0.99-1.66)E-01 (1.17- 1.74)E-Ol (5.00-9.84)E-02 K-40 01-10 Meanistd.dev. LT. 2. E-02 7.73 i 1.57E-03 LT. 2. E-02 2.9010.6 E-02 det./ total 0/10 2/10 0/10 1/10 range --

(6.62-8.84)E-03 -- --

I-131 01-10 Meanistd.dev. LT. 7. E-02 LT. 7. E-02 LT. 7. E-02 LT. 9. E-02 (by gamma det./ total O/10 0/10 O/10 spectroscopy) range -- -- __

0/10 Cs-134 01-10 Meanistd.dev. LT. 7. E-04 LT. 7. E-04 LT. 7. E-04 LT. 7. E-04

$ det./ total 0/10 0/10 0/10 0/10 range -- -- -- --

Cs-137 01-10 Meanistd.dev. LT. 7. E-04 LT. 6. E-04 LT. 6. E-04 LT. 6. E-04 det./ total 0/10 0/10 0/10 0/10 range -- -- -- - - -

Ra-226 01-10 Meanistd.dev. LT. 1. E-02 LT. 1. E-02 LT. 1. E-02 LT. 1. E-02 det./ total 0/10 0/10 0/10 0/10 range -- -- -- --

'Ih-228 01-10 Meanistd.dev. LT. 1. E-03 LT. 1. E-03 LT. 1. E-03 LT. 1. E-03 det./ total 0/10 0/10 0/10 0/10 range -- - -- -- --

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'E. FISH (See Tables E-1. E-21 1

I STATIONS 28. 35 l 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 iso-2 topes. An attempt was made to collect a middle-top feeding fish (carp) and a ,

bottom feeding fish (catfish). Both types of fish were collected during the l cummer but only carp was collected in the fall sampling period.

4

The gross beta and Sr-90 activities were similar to the levels of previous years. Strontium-90 was detected in five of eight samples at a level .;f 0.0041 .

. pCf/ 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 !

j an average level of 3.02 pCi/gm, wet. j l

There were no detections of Cs-137 during 1996. 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 1996. The plot of the nuclides shows that most of the gross beta actMty is due to the terrestrial nuclide K-40.

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Tant.m U-1 1996 QUARTERLY REPORT NEBRASKA PUBLIC POWER DISTRICT COOPER NUCLEAR STATION EXPOSURE PATHWAT - INGESTION FISH - PCI/GM, WET SAMPLE STATION FIRST QUARTER SECOND QUARTER THIRD QUARTER FOURTH QUARTER NUCLIDE NUMBER 07/17.07/25 10/24 Gross Beta 28, 35 Meanistd.dev. 4.7 i 0.8 E 00 5.1 i 0.2 E 00 det./ total 5/S 3/3 range (3.4-5.5)E 00 (4.9-5.3)E 00 Sr-89 28, 35 Meanistd.dev. L.T. 3. E-03 L.T. 4. E-03 det./ total 0/5 . 0/3 range - --

Sr-90 28, 35 Meanistd.dev. 4.4 i 3.1 E-03 3.1 1 0.8 E det./ total 4/5 1/3 range (1.5-8.1)E-03 --

K-40 28, 35 Meanistd.dev. 3.08i0.3 E 00 2.92 1 0.27E 00' det./ total 5/5 3/3 range (2. 8-3. 6) E 00 (2.72-3.19) E 00 Os Co-60 28, 35 Meanistd.dev. L.T. 2. E-02 L.T. 2. E-02 det./ total 0/5 0/3 range -- --

I-131 28, 35 Meanistd.dev. L.T. 6. E-02 L.T. 3. E-02 det./ total 0/5 0/3 range -

Cs-134 28, 35 Meanistd.dev. L.T. 2. E-02 L.T. 2. E-02 det./ total 0/5 0/3 range -- --

Cs-137 28, 35 Meanistd.dev. L.T. 2. E-02 L.T. 2. E-02 det./ total 0/5 0/3 range -- -

t M

_ _ _. - __-a _._._x-.__._.wm. - _ _ _ . - - _ - - - _ _ _ . - . - - _ . - _ . _ _ . _ _ _ _ _ _ --._._____x_._---_-_-_-__ _ _ . _ _ _ _ - - - - - - . _ -__-a - A

l TABLE E-2 j 1996 QUARTERLY REPORT l NEBRASKA PUBLIC POWER DISTRICT COOPER NUCLEAR STATION EXPCSURE PATHWAY - INGESTION FISH - PCI/GM, WET SAffLE STATION FIRST QUARTER SECOND QUARTER THIRD QUARTER FOURTH QUARTER NUCLIDE NUMBER 07/17 07/25 10/24 BE-7 28, 35 L.T. 2. E-01 (0/5) L.T. 1. E-01(0/3)

Q' K-40 28, 35 -, 3.081 0.3 E 00(5/5) 2.92 10.2E 00 (3/3)

Mn-54 28, 35 B L.T. 1. E-02 (0/5) L.T. 2. E-02(0/3)

, Co-58 28, 35 L.T. 2. E-02 (0/5) L.T. 2. E-02 (0/3)

Fe-59 28, 35 L.T. 4. E-02 (0/5) L.T. 3. E-02(0/3)

Co-60 28, 35 L.T. 2. E-02 (0/5) L.T. 2. E-02(0/3)

En-65 28, 35 L.T. 4. E-02 (0/5) L.T. 3. E-02(0/3)-

b Er-95 28, 35 L.T. 2. E-02 (0/5) L.T. 2. E-02 (0/3)

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

Ru-106 28, 35 L.T. 2. E-01 (0/5) L.T. 1. E-01(0/3). ,

I-131 28, 35 L.T. 6. E-02 (0/5) L.T. 3. E-02(0/3)

Cs-134 28, 35 L.T. 2. E-02 (0/5) L.T. 2. E-02(0/3):

Cs-137 28, 35 L.T. 2. E-02 (0/5) L.T. 2. E-02(0/3)

Ba-140 28, 35 L.T. 4. E-02(0/5) L.T. 2. E-02 (0/3)

Ce-141 28, 35 L.T. 4. E-02(0/5) L.T. 2. E-02(0/3)

Co-144 28, 35 L.T. 1. E-01 (0/5) L.T.' 9. E-02 (0/3)

Ra-226 28, 35 L.T. 4. E-01 (0/5) L.T. -3. E-01(0/3)

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

l

~

F. MILK (See Tables F-1. F-21 i STATION 61 (NEAREST PRODUCERl I

Milk samples from the nearest producer Station 61, 3.5 miles. 326 l degrees from the elevated release point of CNS were collected once every 15 l 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 I-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 !

, collected every 15 days during peak pasture season were analyzed upon re-

^

ceipt for I-131 and gamma emitting isotopes. A monthly composite was prepared and analyzed as described above

. There were no detections of 1-131 in the twenty-three samples analyzed l by chemical separation. There were no detections of Sr-89 in the samples j analyzed. Strontium-90 was detected at an average level of 1.4 pCi/ liter, 4

which is a normal environmental level. Elemental calcium was found at an average level of 2.0 mg/ liter. Potassium-40, a naturally occurring isotope, was detected at an average level of 1250 pCi/ liter.

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

Shown in Figure F-1 and F-2 are the plots of radionuclides monitored from 1977 through 1996 in milk samples from producers nearest the reac-tor. The levels of K-40, elemental calcium and Sr-90 remained stable.

l 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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TABIE F-1 1996 QUARTERLY REPORT NEBRASKA PUBLIC POWER DISTRICT COOPER NUCLEAR STATION EXPOSURE PATHWAY - INGES~I10N MilX - NEAREST PRODUCER - PCI/llTER SAMPLE STAT 10N FIRST QUARTER SECOND QUARTER 'ITilRD QUARTER FOUR111 QUARTER NUCLIDE NUMBER 01/02-03/12 04/02-06/18 07/02 09/24 10/08-12/03 SR-85 61 Meanistd.dev. LT. 8. E-01 LT. 1. E 00 LT. 1. E 00 LT. 8. E.01 det_/ total 0/5 0/5 0/3 0/3 range -- -- -- --

SR-90 61 Meanistd.dev. 1.210.2 E 00 1.5 i 0.3 E 00 1.210.1 E OG 1.710.6 E 00 det./ total 5/5 5/5 3/3 3/3 range (0.96-1.3)E 00 (1.1-1.8)E 00 (1.1-1.2)E 00 (1.1-2.3)E 00 1-131 61 Meanistd.dev. LT. 2. E-01 LT. 2. E-01 LT. 3. E-01 LT. 3. E.01 by chemical det./ total 0/5 0/5 0/10 0/3 separation range -- -- -- -

b Ca 61 Meanistd.dev. 1.8 i 0.1 E 00 2.010.2 E 00 2.110.4 E 00 2.5 i 0.2 E 00 gm/ liter det./ total 5/5 5/5 3/3 3/3 range (1.7-1.9) E 00 (1.8-2.2)E 00 (1.7-2.3)E 00 (2.3-2.7)E 00 K-40 61 Meariistd. der. 1.2510.07E 03 1.39 i O.23E 03 1.2 i O.08E 03 1.210.06E 03 det./ total 5/5 5/5 10/10 3/3 range (1.13-1.31)E 03 (1.23-1.80)E 03 (1.01-1.28)E 03 (1.12-1.23)E 03 1-131' 61 -Meanistd.dev. LT.4.E00 LT.5.E00 LT.7.E00 LT.5.E00 by gamma det./ total 0/5 0/5 O/10 0/3 spectroscopy range -- -- -- --

Cs-134 61 Meanistd.dev. LT. 4. E CO LT.4. E00 LT.5.E00 LT.4.E00 det./ total 0/5 0/5 0/10 0/3 range -- -- -- --

Cs-137 61 Meanistd.dev. LT. 4. E 00 LT. 5. E 00 LT. 5. E 00 LT. 4. E 00 det./ total 0/5 0/5 O/10 0/3 range -- -- -- --

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

l TABLE F-2 1996 QUARTERLY REPORT -

NEBRASKA PUBUC POWER DISTRICT COOPER NUCLEAR STA~I1ON

EXPOSURE PATHWAY - INGESTION MILK - NEAREST PRODUCER - PCI/IIIER SAMPLE - STATION FIRST QUARIER SECOND QUARIER "INIRD QUARIER FOURIH QUARIER NUCUDE NUMBER 01/02-03/12 04/02-06/18 07/02-09/24 10/08-12/03 f

BE-7 61. LT.3.E01 (0/5) LT.3. E01 (0/5) - LT. 4. E 01 (0/lO) LT.3.E01 10/3) . l K-40 61 1.2510.07E 03(5/5) 1.39to.23E 03 (5/5) 1.20io.08E 03(10/10) 1.210.06E 03(3/3)

Mn.54 61 LT.4.E00 (0/5) LT.4.E00 (0/5) LT.4.E00 (0/10) LT.4. E00 10/3) -

Co.58 61 LT. 4. E 00 (0/5) LT. 4. E 00 (0/5) LT. 4. E 00 (0/101 LT. 4. E 00 (0/3)

. Fe-59 61 LT. 8. E 00 (0/5) LT. 8. E 00 (0/5) LT. 9. E 00 (0/10) LT. 9. E 00 (0/3) ~ [

Co-60 61 LT. 4. E 00 (0/5) LT. 5. E 00 (0/5) LT. 4. E 00 (0/10) LT. 4. E 00 . (0/3) !

Zn-65 61 LT. 9. E 00 (0/5) LT. 1. E 01 (0/5) LT. 1. E 01 (0/10) LT. 9. E 00 (0/3) .

Zr-05 61 LT.4.E00 (0/5) LT.4.E00 (0/5) LT.4. E00 (0/10) LT.4.E00 (0/3) ;

- Ru-103 ~ 61 LT. 4. E 00 (0/5) LT. 4. E 00 (0/5) LT. 5. E 00. (0/10) LT. . - E 00 -(0/3) j Ru-106 61 LT.4. E01 (0/5) LT.4.E01 (0/5) LT. '4. E 01 (0/10) LT.3.E01 (0/3) '

I-131 61 LT.4.E00 (0/5) LT.5.E00 (0/5) LT.7.E00 (0/10) LT. 5. E 00 - (0/3)

Cw134 ' 61 LT. 4. E 00 (0/5) LT. 4. E 00 (0/5) LT. 5. E 00 (0/10) LT. 4. E 00 - (0/3)

Ca-137 61- LT.4.E00 (0/5) LT.5.E00 (0/5) LT.5. E00 (0/10) LT.4.E00 (0/3)

~

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LT. 6. E 00 (0/5) LT 6. E 00 (0/5)

. Ce-141 61 LT. 9. E 00 (0/10) LT. 7. E 00 (0/3) .

1 Ce-144 61 LT. 3. E 01 (0/5) LT. 3. E 01 (0/5) LT. 4.' E 01 (0 / 1 01 LT. ' 3. E 01 (0/3) .;

Ra-226 61 LT.7. E01 (0/5) LT.9.E01 (0/5) LT.1. E02 (0/10) LT.8. E01 (0/3) ;

Th.228 61 LT. 6. E 00 (0/5) LT. 8. E 00 (0/5) LT. 8. E 00 (0/10) LT. 7. E 00 (0/3) ;

'1

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

STATIONS 99.100 (OTHER PRODUCERS)

Milk samples were collected quarterly from other producers, Station 99, 10.5 miles from the plant and Station 100 which is 11.5 miles from the plant. Die samples were analyzed for I-131 by chemical separation, for ele- ;

mental calcium, for Sr-89 and 90 and for gamma emitting isotopes. There i were no detections of I-131 in the eight samples monitored. _

l There were no detections of Sr-89. Strontium-90 was found at an aver- -

age level of 1.4 pC1/ liter. There were 1.9 mg of calcium per liter of milk. I Potassium-40 was detected at an average level of 1330. pCi/ liter. The stron-tium-90, K-40 and elemental calcium were at normal environmental levels ;

and were similar to the results obtained from analyses of milk from the near-l est 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-40,1-131 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 1 nearest producer and the commercial producers. This indicated no effect on milk samples from the operations of CNS.

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TABLE G.1 1996 QUARTERLY REPORI'.

l

, NEBRASKA PUBLIC POWER I)lSTRICT i l COOPER NUCLEAR STA110N EXPOSURE PATHWAY - INGESTION MILK - OTHER PRODUCERS - PC!/ iller i..

i

+

SAMPLE' STATION FIRST QUARTER SECOND QUARTER NUCLIDE THIRD QUARTER FOURIM QUARIER NUMBER 01/16 04/23-04/24 07/09 10/15 SR-89 99.100 Meanistd.dev. LT.1. E00 LT. 8. E-Ol LT. 8. E-01 LT.1.E00 det./ total O/2 0/2 0/2 0/2 range -- -- -- --

r SR-90 99.100 Meanistd.dev. 1.2 i O.1 E 00 1.I i 0.1 E 00 1.9 i 1.3 E 00 1.410.4 E 00 >

det./ total 2/2 2/2 2/2 2/2 range (1.1-1.2)E 00 (1.0-1.2) E 00 (0.98-2.8)E 00 (1.1 1.6)E 00 t g I-131- 99-100 Meanistd. der. LT. 2. E-01 LT. 3. E.01 LT. 2. E-01 LT. 2. E-Ol i (by chemical det./ total O/2 0/2 0/2 O/2 separation) range -- -- -- --

On 99.100 Meanistd.dev. 1.8 i 0.2 E 00 1.9 i 0.3 E 00 1.6 i 0.3 E 00 2.2 i O.2 E 00 gm/ liter det./ total 2/2 2/2 2/2 2/2 '

range (1.8-1.8) E 00 (1.7-2.1) E 00 (1.4-1.8)E 00 (2.2-2.2)E 00 K-40 .99, 100 Meanistd.dev. 1.41 i 0.1E 03 - 1.3310.04E 03 1.2810.1 E 03 1.2910.02E 03 del / total 2/2 2/2 2/2 2/2 range - (l.36-1.45)E 03 (l.3-1.4)E 03 (l.2-1.4)E 03 (l.27-1.30)E 03 I-131 99.100 Meanistd.dev. LT.4. E00 LT.6.E00 LT.5.E00 LT.5.E00 (by gamma det./ total O/2 0/2 0/2 0/2 spectroscopy) range -- -- -- --

t Cs-137 99.100 Meanistd.dev. LT. 3, E 00 LT. 5. E 00 LT. 5. E 00 LT. 4. E 00 det./ total O/2 0/2 0/2 0/2 range -- -- -- --

1 i

l TABLE G-2 1996 QUARTERLY REPORT NEBRASKA PUBLIC POWER DISTRICT COOPER NUCLEAR STAllON EXPOSURE PAT 11WAY - INGESTION MILK - 011{ER PRODUCERS - PCI/L11ER

, SAMPLE STATION FIRST QUARTER SECOND QUARTER T111RD QUARIER FOURTH QUARTER

! NUCUDE NUMBER 01/16 04/23-04/24 07/09 10/15 BE-7 99.100 LT. 3. E 01 (0/2) LT. 4. E 01 (0/2) LT. 4. E 01 (0/2) LT. 3. E 01 (0/2)

K-40 99.100 1.4110.lE 03(2/2) 1.3310.04E 03(2/2) 1.2810.1 E 03(2/2) 1.2910.02 E 03(2/2)

Mn-54 99.100 LT. 3. E 00 (0/2) LT. 5. E 00 (0/2) LT. 4. E 00 (0/2) LT. 4. E 00 (0/2)

Co-58 99.100 LT. 3. E 00 (0/2) LT. 5. E 00 (0/2) LT. 4. E 00 (0/2) LT. 4. E 00 (0/2)

Fe-59 99.100 LT. 7. E 00 (0/2) LT. 1. E 01 (0/2) LT. 1. E 01 (0/2) LT. 8. E 00 (0/2) i Co-60 99.100 LT. 3. E 00 (0/2) LT. 4. E 00 (0/2) LT. 4. E 00 (0/2) LT. 4. E 00 (0/2)

Zn-65 99.100 LT. 7. E 00 (0/2) LT. 1. E 01 (0/2) LT. 1. E 01 (0/2) LT. 9. E 00 (0/2) 8 Zr-95 99.100 LT. 3. E 00 (0/2) LT. 5. E 00 (0/2) LT. 4. E 00 (0/2) LT. 4. E 00 (0/2)

Ru-103 99.100 LT. 3. E 00 (0/2) LT. 5. E 00 (0/2) LT. 5. E 00 (0/2) LT. 4. E 00 (0/2)

Ru-106 99.100 LT. 3. E 01 (0/2) LT. 4. E 01 (0/2) LT. 4. E 01 (0/2) LT. 4. E 01 (0/2) 1131 99.100 LT. 4. E 00 (0/2) LT. 6. E 00 (0/2) LT. 5. E 00 (0/2) LT. 5. E 00 (0/2)

Co-134 99.100 LT. 3. E 00 (0/2) LT. 5. E 00 (0/2) LT. 5. E 00 (0/2) LT. 4. E 00 (0/2) ,

Cs-137 99.100 LT. 3. E 00 (0/2) LT. 5. E 00 (0/2) LT. 5. E 00 (0/2) LT. 4. E 00 (0/2) _;

Ba-140 99.100 LT. 3. E 00 (0/2) LT. 5. E 00 (0/2) LT. 5. E 00 (0/2) LT. 4. E 00 (0/2)

Ce-141 99.100 LT. 5. E 00 (0/2) LT. 7. E 00 (0/2) LT. 7. E 00 (0/2) LT. 8. E 00 (0/2)

Cc-144 99.100 LT. 2. E 01 (0/2) LT. 3. E 01 (0/2) LT. 3. E 01 (0/2) LT. 4. E 01 (0/2)

Ra-226 99.100 LT. 7. E 01 (0/2) LT. 9. E 01 (0/2) LT. 9. E 01 (0/2) L T. 1. E 02 (0/2)

Th-228 99.100 LT. 6. E 00 (0/2) LT. 7. E 00 (0/2) LT. 7. E 00 (0/2) LT. 9. E 00 (0/2)

4 , i H. GROUNDWATER (See Tables H-1 and H-21 )

l STATIONS 11. 47 l

Groundwater was collected from two stations quarterly and analyzed for l gross beta and gross alpha activity, for tritium and for gamma emitting ra- I dionuclides. Station 11 is 0.15 miles from the plant and station 47 is 25.8 l miles from the plant. l The gross beta activity averaged 8.1_pCi/ liter which is statistically similar to past years. There were two detections of gross alpha with an average level of 3.3 pCi/l. There were no detections of gamma emitters above the normal level of detection. The tritium level averaged 100 pC1/ liter for the year

.which is the normal environmental level. ,

1 There was no difference in levels of beta activity or tritium for the sta- l tion close to the plant as compared with the more distant station. It may be concluded that there was no impact from the operations of CNS on the envi-ronment 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 un-changed.

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l TABER H-1 1996 QUARTERLY REPOIE NEBRASKA PUBUC POWER DISTRICT COOPER NUCIE.AR STATION EXPOSURE PATHWAY - WATERBORNE GROUNDWATER - PCI/IIIER t SAMPLE STATION FIRST QUARTER SECOND QUARTER ~1RIRD QUARTER FOURIN QUARIER NUCUDE NUMBER 02/08 04/30 07/16 10/22 CROSS 11,47 Meanistd.dev. LT. 4. E 00 3.3 1.4 E 00 LT. 4. E 00 LT.5.E00 AIPHA det./ total O/2 2/2 0/2 0/2 range -

(2.3-4.3)E 00 -- +-

GROSS 11, 47 Meanistd.dev. 6.212.5 E 00 9.012.9 E 00 6.9 i 0.4 E 00 1.,1 0.07E 01 BETA det./ total 2/2 2/2 2/2 2/2 range (4.4 7.9) E 00 (6.9-11)E 00 (6.6-7.1)E 00 (1.0-1.1)E 01

$ K-40 11,47 Meanistd.dev. LT. 9. E 01 LT. 9. E 01 LT. 7. E 01 LT. 1.E02 det./ total O/2 0/2 0/2 0/2 range -- -- -- --

1-131 11,47 Meanistd.dev. LT. 4. E 00 LT. 4. E 00 LT. 5. E 00 LT. 5. E 00 (by gamma det./ total O/2 0/2 0/2 0/2 spectroscopy) range -- -- -- --

3 Co-137 11. 47 Meanistd.dev. LT. 4. E 00 LT. 4. E 00 LT. 4. E 00 LT. 5. E 00 det./ total O/2 0/2 0/2 0/2 range -- -- -- --

H-3 11,47 Meanistd.dev. LT. 1. E 02 LT. 1.E02 LT. 1.E02 LT. 1.E02 det./ total O/2 0/2 0/2 0/2 range -- -- -- --

i i

t TABt2 H.2 1996 QUARTERLY REPORT ,

NEBRASKA PUBUC POWER DISTRICT COOPER NUCIEAR STKnON EXPOSURE PA111WAY - WATERBORNE GROUNDWKIER - PCI/ UTER SAMPLE STATION FIRST QUARTER SECOND QUARIER 7111RD QUARIER FOUR111 QUARTER NUCUDE NUMBER O2/08 04/30 07/16 10/22 BE-7 ' 11,47 LT. 3. E 01 (0/2) LT. 3. E 01 (0/2) LT. 3. E 01 (0/2) LT. 4. E 01 (0/2)

K-40 11, 47 LT. 9. E 01 (0/2) LT. 9. E 01 (0/2) LT. 7. E 01 (0/2) LT. 1. E 02 (0/2)

Mn.54 11,47 LT. 3. E 00 (0/2) LT. 3. E 00 (0/2) LT. 4. E 00 (0/2) LT. 4. E 00 (0/2)

Co-58 11,47 LT. 3. E 00 (0/2) LT. 3. E 00 (0/2) LT. 3. E 00 (0/2) LT. 4. E 00 (0/2)

Fe-59 11. 47 LT. 7. E 00 (0/2) LT. 7. E 00 (0/2) LT. 8. E 00 (0/2) LT. 9. E 00 (0/2)

Co-60 11. 47 LT. 3. E 00 (0/2) LT. 3. E 00 (0/2) LT. 4. E 00 (0/2) LT. 4. E 00 (0/2)

$ Zn-65 11.47 LT. 7. E 00 (0/2) LT. 7. E 00 (0/2) LT. 7. E 00 (0/2) LT. 1. E 01 (0/2)

Zr.95 I1. 47 LT. 3. E 00 (0/2) LT. 4. E 00 (0/2) LT. 4. E 00 (0/2) LT. 5. E 00 (0/2)

Ru-103 11,47 LT. 3. E 00 (0/2) LT. 4. E 00 (0/2) LT. 4. E 00 (0/2) LT. 5. E 00 (0/2) .

Ru-106 11.47 LT. 3. E 01 (0/2) LT. 3. E 01 (0/2) LT. 3. E 01 (0/2) LT. 4. E 01 (0/2) 1131 11.47 LT. 4. E 00 (0/2) LT. 4. E 00 (0/2) LT. 5. E 00 (0/2) LT. 5. E 00 (0/2)

Cs.134 11.47 LT. 3. E 00 (0/2) LT. 4. E 00 (0/2) LT. 4. E 00 (0/2) LT. 5. E 00 (0/2)

Cs-137 11.47 LT. 4. E 00 (0/2) LT. 4. E 00 (0/2) LT. 4. E 00 (0/2) LT. 5. E 00 (0/2)

Ba.140 11.47 LT. 4. E 00 (0/2) LT. 4. E 00 (0/2) LT. 5. E 00 (0/2) LT. 5. E 00 (0/2) i ce-141 11.47 LT. 5. E 00 (0/2) LT. 5. E 00 (0/2) LT. 8. E 00 (0/2) LT. 7. E 00 (0/2)

Cc-144 11,47 LT. 2. E 01 (0/2) LT. 2. E 01 (0/2) LT. 4. E 01 (0/2) LT. 3. E 01 (0/2)

Ra.226 11,47 LT. 6. E 01 (0/2) LT. 7. E 01 (0/2) LT. 1. E 02 (0/2) LT. 8. E 01 (0/2)

Th-228 11. 47 LT. 6. E 00 (0/2) LT. 7. E 00 (0/2) LT. 9. E 00 (0/2) LT. 8. E 00 (0/2)

l I. RIVER WATER (See Table I-1 arid I-2)

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 was one detection of potassium-40 above the normal level of de- j

tection at 55 pCi/1, at Station 12 and no detections of Sr-89 and Sr-90. j The average gross alpha and gross beta readings were similar to previous

, years as indicated in the summary of 1995 and 1996 averages below:

1995 1996 Average pCi/ liter Average pCi/ liter Gross Alpha 4.0 3.7 (dissolved)

Gross Alpha 2.2 4.8 j (suspended) !

Gross Beta 11.0 11.0 (dissolved)

Gross Beta 5.9 11.6 (suspended)

Figure 1-1, which follows, is a plot of the gross alpha and gross beta of suspended and dissolved particles. The levels of activity continued to rise and fall within statistical limits depending on water levels and turbulence and were probably due to naturally occurring isotopes. No fission or reactor activation products were <!etected. Figure I-2 illustrates the level of activity for tritium. Sr-89 and Sr-90.

I l

87

FIGURE I-l RIVER WATER QUARTERLY AVERAGE - ALL LOCATIONS GROSS ALPHA AND GROSS BETA (SUSPENDED AND DISSOLVED SOLIDS) 100 i

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E TAR 12 I.1 1996 QUARTERLY REPORT NEBRASKA PUBUC POWER DISTRICT COOPER NUCLEAR STATION EXPOSURE PA~IHWAY - WATERBORNE WATER - RIVER PCI/ LITER SAMPLE STATION FIRST QUARTER SECOND QUARIER THIRD QUARTER FOURTH QUARTER NUCLIDE NUMBER 01/02-03/12 04/02-06/04 07/02 09/03 10/01-12/03 GROSS 12,28 Meanistd.dev. 2.912.3 E 00 3.310.3 E 00 5.010.8E 00 3.6 i 0.2E 00 AIPHA det./ total 1/6 4/6 2/6 2/6 (dissolved) range --

(3.0-3.6)E 00 (4.4 5.5)E 00 (3.4-3.7)E 00 GROSS = 12,28 Meanistd.dev. 8.6 i 1.1 E-01 4.6 i 4.I E 00 9.8 i 12 E 00 9.2 i 2.9E-01 AIPHA det./ total 2/6 6/6 5/6 4/6 (suspended) range (7.8-9.4) E-01 (0.83-10)E 00 (1.0-30)E 00 (0.65- 1.3)E00 GROSS 12,28 Meanistd.dev. 1.210.08 E 01 1.1 i O.08E 01 1.1 i O.15E 01 1.010.1E 01 BETA det./ total 6/6 6/6 6/6 6/6 (dissolved) range (1.1-1.3]E 01 (1.0-1.2)E 01 (8.3-12)E 00 (8.6-12]E 00 GROSS 12,28 Meanistd.dev. 3.2 i 1.2 E 00 1.5 i 1.1 E O1 2.2 1 2.1 E O1 2.9 i 1.1E 00 BETA det./ total 4/6 6/6 6/6 6/6

(:uspended) range (2.3-4.8)E 00 (3.5-28)E 00 (2.3-58)E 00 (1.6-4.4)E 00

$ Sr-89 12,28 Meanistd.dev. LT. 1. E 00 LT. 1. E 00 LT. 2. E 00 LT. 1. E 00 det./ total O/6 O/6 O/6 O/6 range -- -- -- --

Sr.90 12,28 Meanistd.dev. L T. 5 E-01 LT.7 E-01 LT.7 E-01 LT.9 E-01 det./ total O/6 O/6 O/G 0/6 range -- -- -- --

H.3 (a) 12,28 Meanistd.dev. LT. 1. E 02 LT. 1 E 02 LT. 1 E 02 LT. 1 E 02 det./ total 0/2 O/2 0/2 0/2 l range -- -- -- --

l I-131 12,28 Meanistd.dev. LT. 5. E 00 LT. 6. E 00 LT. 6. E 00 LT. 6. E 00 l (by genuna det./ total O/6 O/6 O/6 O/6 l tpectroscopy) range -- -- -- --

l

! Cs-137 12.28 Meanistd.dev. LT 4. E 00 LT. 4. E 00 LT. 5. E 00 LT. 5. E 00 det./ total O/6 O/6 O/6 0/6 range -- -- -- --

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

l l

TABLE I-2 1996 QUARTERLY REPORT NEBRASKA PUBLIC POWER DISTRICT COOPER NUCLEAR STATION EXPOSURE PATHWAY - WATERBORNE WATER - RIVER PCI/IJTER SAMPLE STA110N FIRST QUAdiER SECOND QUARIER 'HilRD QUARIER NUCLIDE FOURDI QUARTER NUMBER 01/02 03/12 04/02-06/04 07/02-09/03 10/01-12/03 BE-7 12,28 LT. 3. E 01 (0/6) LT. 3. E 01 (0/6) LT. 4. E 01 (0/6) LT. 4. E 01 (0/6)

K-40 12.28 LT. 1. E 02 (0/6) 5.4612.73E O1(1/6) LT. 1. E 02 (0/6) LT. 1. E O2 (0/6)

Mn-54 12.28 LT. 4. E 00 (0/6) LT. 4. E 00 (0/6) LT. 4. E 00 (0/6) LT. 4. E 00 (0/6)

Co-58 12.28 LT. 4. E 00 (0/6) LT. 4. E 00 (0/6) LT. 4. E 00 (0/6) LT. 4. E 00 (0/6)

Fe.59 12.28 LT. 8. E 00 (0/6) LT. 8. E 00 (0/6) LT. 9. E 00 (0/6) LT. 9. E 00 (0/6)

Co-60 12,28 LT. 4. E 00 (0/6) LT. 4. E 00 (0/6) LT. 4. E 00 (0/6) LT. 4. E 00 (0/6) ,

2n-65 12.28 LT. 9. E 00 (0/6) LT. 8. E 00 (0/6) LT. 9. E 00 (0/6) LT. 1. E 01 (0/6)

$ Zr-95 12,28 LT. 4. E 00 (0/6) LT. 4. E 00 (0/6) LT. 4. E 00 (0/6) LT. 5. E 00 (0/6)

Ru-1D3 12.28 LT. 4. E 00 (0/6) LT. 4. E 00 (0/6) LT. 5. E 00 (0/6) LT. 5. E 00 (0/6)

Ru-106 12.28 LT. 4. E O1 (0/6) LT. 3. E OI (0/6) LT. 4. E O1 (0/6) LT. 4. E O1 (0/6)

I-131 12.28 LT. 5. E 00 (0/6) LT. 6. E 00 (0/6) LT. 6.. E 00 (0/6) LT. 6. E 00 (0/6)

Co-134 12,28 LT. 4. E 00 (0/6) LT. 4. E 00 (0/6) LT. 5. E 00 (0/6) LT. 5. E 00 (0/6)

Cs-137 12.28 LT. 4. E 00 (0/6) LT. 4. E 00 (0/6) LT. 5. E 00 (0/6) LT. 5. E 00 (0/6)

Ba-140 12,28 LT. 5. E 00 (0/6) LT. 6. E 00 (0/6) LT. 5. . E 00 (0/6) LT. 5. E 00 (0/6)

Ce-141 12.28 LT. 7. E 00 (0/6) LT. 6. E 00 (0/6) LT. 8. E 00 (0/6) LT. 7. E 00 (0/6)

Cc-144 12.28 LT. 3. E 01 (0/6) LT. 3. E 01 (0/6) LT. 3. E 01 (0/6) LT. 3. E 01 (0/6)

Ra-226 12.28 LT. 1. E 02 (0/6) LT. 8. E 01 (0/6) LT. 9. E O1 (0/6) LT. 9. E 01 (0/6)

Th-228 12.28 LT. 8. E 00 (0/6) LT. 7. E 00 (0/6) LT. 8. E 00 (0/6) LT. 8. E 00 (0/6)

\

J. AMBIENT RADIATION - THERMOLUMINESCENT DOSIMETERS frLDs - See Tables J-1 AND J-21 :

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 ra- 1 dius of CNS and collected quarterly. The quarterly averages for all stations of ambient net gamma radiation ranged from 16.0 milliroentgen / quarter to l 20.0 milllRoentgen/ quarter. The highest exposure during each of the four i quarters was at Station 66 (4.5 miles, 200 degrees) and averaged 20.0 mR/ quarter. The lowest exposure was at Station 03 (2.5 miles,338 degrees) averaging 16.3 milliroentgen / quarter.

1 The radiation at station 44, (10.5 miles, 270 degrees) which is the control station, was an average of 19.9 mR/ quarter. 'Ihis was similar to other stations and to the average of all stations which was 18.3 mR/ quarter.

. The average total exposure for the year was 73.1 mR which is consid-erably below the 125 millirems per quarter specified in 10 CFR 20.105 for an unrestricted area. The relationship between mill 1 Roentgen (mR) and millirems (mr)'Is approximately one for the exposure conditions encoun-tered. No plant effect from CNS was indicated.

The gamma exposures monitored by thermoluminescent dosimeters from 1977 through 1996 are plotted on Figure J-1. The data from year to year is in good agreement and indicates no adverse changes in radiation ex- !

posure to the population near CNS.

1 l

1

1 i

l FIGURE J-1 AMBIENT RADIAT10N 111ERMOLUMINESCENTDQ / METRY

! QUARIERLY AVERAGE - All LOCA110NS 1000 1004 to k

a e

5 x , a-x-a x " x.,.x e #'x-x #- x -a x-x-3 a.x * #w .= x-x , x-x-# * " x 9

10<

e a a e a e a e u a g a e a e a e a e e a e a e a a e e e e a a e a e a 1977 1978 1979 1980 1981 1982 1983 1984 1985

- x- EXPOSURE PATHWAY - AMBIENT GAMMA RADIATION: TLD

._ ... ~

FIGURE J-l AMBIENT RADIATION T11ERMOLUMINESCENT DOSIMETRY QUARIERLY AVERAGE - All LOCATIONS 1000 ,

100<

Q MWNi S- g -N @ g T g.g meg 4 -@@ N-S $7 MM -gg M* -

g M M 10 g . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1986 1987 1988 1989 1990 1991 1992 1993 1994

-M- EXPOSURE PAT 11WAY - AMBIERT GAMMA RADIATION: 11B

1 ' ., . !. . ,

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TAB 12 J-1

.1996 QUARTERIX REPORT.

NEBRASKA PUBIJC POWER DISTRICT COOPER NUCIE.AR STA~I1ON !

EXPOSURE PA'IIIWAY - AMBIENT GAMMA RADIA~I1ON: "IID -

milliroentgen / Quarter SAMPLE STATION - FIRST QUARTER SECOND QUARIER 'IlilRD QUAR 1ER FOURITI QUARIER NUClJDE NUMBER 12/26/95-04/09/96 04/09/96-07/16/96 07/16/96-10/08/96 10/08/96-01/08/97 TLD (Gamma) 01 22.0 t 1.4 19.410.6 17.4 i 1.0 ' 18.010.7 L

02 19.3 i 1.0 17.810.8 -15.510.7 17.7 i 0.7 ,

03 18.310.2 16.410.5 13.7 i 0.5 16.9 i 1.5 '

04 19.010.5 17.410.9 15.6 i 0.9 17.8 i 0.7 05 18.7 i 1.1 18.0 0.8 15.610.4 17.6 i 1.6 06 19.8 i 1.3 17.7 i 0.7 15.I 1 0.9 17.7 i 0.9 07 18.311.8 17.5 i O.8 15.8 i 0.8 17.310.7

- 08 19.310.9 18.6 i 1.0 16.6 i 1.0 18.7 i 1.2 8 09 20.010.7 17.310.4 15.010.9 17.510.9 1

10 19.2 i 1.2 17.510.9 15.510.9 17.3 i 1.0 20 21.4 i 0.7 18.310.9 16.110.7 17.9 i 1.3' 44 20.510.7 20.5 i 1.2 17.8 i 0.9 20.6 i 1 6 17.9 i 0.8 15.9 i 1.I 56 19.310.6 10.I 1 0.7 58 19.310.6 19.0 i 1.0 15.9 i 0.7 19.3 i 1.4 59 19.7 i 1.3 18.9 i 1.1 15810.7 18.6 t 0.9 .

66 21.710.3 20.510.6 18.210.9 19.410.8 67 19.9 i 0.7 19.6 i 1. I 19.I 1 2.7 19.3 i 1.3

~

71 20.2 i 1.3 20.7 i 1.0 16.410.9 19.7 i 1.1 i

-m__ m ._ .___ _m. _ _ ______-___m. . -= . __.__ _ _ _ _ - - - - _ _ _ - -....m+ +-w.. . _ _ _ _ _ . > -

_.-___m__ _ _ . _ _ _ _ _ . - _ _ . -

i; ,

w TABER J-1

, 1996 QUARTERLY REPORT:

NEBRASKA PUBLIC POWER DISTRICT COOPER NUCLEAR STK3ON - I EXPOSURE PKIlfWAY. - AMBIENT GAMMA RADIAllON: TLD milllRoentgen/ Quarter SAMPLE S' TATION' FIRST QUARIER SECOND QUAR 1ER ~INIRD QUARTER ~ FOURITI QUARTER NUCLIDE NUMBER 12/26/95-04/09/96 04/09/96-07/16/96 07/16/96-10/08/96- 10/08/96-01/08/97 79 20.010.9 18.1 i 1.2 15.810.9 17.4 i O.4 .!

80 19.410.6 18.0 i O.9 15.811.1 17.9 i 0.1 81 19.510.7 18.710.9 16.510.5' 19.211.0 82 19.810.9 19.2 i 1.2 16.8 i 1.3 19.3 i 1.0 '

83 20.211.1 19.4 i 0.9 17.210.9 19.4 i 1.5 t

84 21.6 i O.9 20.8 i 1. I 17.I 1 0.8 20.2 i 1.1

,g

~

85 20.210.5 18.2 i 1.0 15.9 i 0.9 19.4 i 0.4 i i

'86 19.5 i 1.0 18.810.9 18.5 i O.5 19.910.8 i 87 18.5 i 1.0 18.510.9 16.211.1 '19.2 i 1.8 88 17.8 i O.4 19.110.9 16.611.0 .18.1 i 0.8- t 89 19.610.7 18.7 i 0.7 17.3 i 1.0 18.6 i 0.7 90 18.110.9 18.6 i 0.9 15.! i 0.6 18.010.8

^

91 17.8 i 0.8 18.3 1 0.7 14.7 i 0.7 17.9 i 0.5 94 21.7 i 0.8 18.911.0 17.5 i 0.5 18.9 i 0.9 t

Average / Quarter 104.8 days 98.1 days 84 days . 92 days i 19.711.1 mR/104.8 days 18.611.0 mR/98.1 days 16.311.2 mR/84 days 18.510.9mR/92 days Average / Day 0.1910.01 mR/ day 0.1910.01 mR day 0.1910.01 mR/ day 0.20io.01 mR/ day Range (18-22)mR/104.8 days (16-21)mR/98.1 days (14-19)mR/84 days (17-21)mR/92 days I

- Det./ Total - 32/32 32/32 32/32 32/32 i i

l i

)

i

l TARI.E J-2 1996 QUARTERLY REPORT NEBRASKA PUBLIC POWER DISTRICT COOPER NUCLEAR STATION EXPOSURE i*ATHNA:.* - AMBIENT GMen RADIATION: TLD I

m1111 Roentgen / Quarter SAMPLE STATION' Aver./ Quarter TOTAL mR/ year MUCLIDE NUMBER 12/26/95-01/08/97 TIA (Gamuna) 01 19.2 1 2.1 76.8' 02' 17.6 i 1.6 70.3 03- 16.3 1 1.9 65.3 04 17.4 i 1.4 69.8 05 17.4 i 1.3 69.9 06 17.6 i 1.9 70.3 07 17.2 i 1.0 68.9 08 18.3 i 1.2 73.2 b 09 17.4 1 2.0 69.9 10 17.4 i 1.5 69.5 20 18.4 1 2.2 73.7 44 19.9 i 1.4 '79.4 56 17.8 1 1.4 71.2 58 18.4 i 1.7 73.5 59 18.3 i 1.7 73.0 66 20.0 1 1.5 79.8 67 19.4 1 0.4 77.9 71 19.3 i 1.9 77.0

l-l' :% .

l~

-TABLE J-2 1994 QUARTERLY REPORT NEBRASKA PUBLIC POWER DISTRICT COOPER NUCLEAR STATION EXPOSURE PATHWAY - AMBIENT GMOR RADIATION: TLD-mil 11 Roentgen /Quaper SAffLE . STATION Aver./ Quarter TOTAL mR,',Nar NUCLIDE NUtBER 01/05/95-1kf26/95 TLD (Gaman) 79 17.8 i 1.7 71.3 80 17.811.4 71.1 81 18.4 i 1.4 73.9 82 18.8 1 1.3 75.1 83 19.1 i 1.3 76.2 84 19.912.0 79.7 4 85 18.4 1 1.9 73.7 8 86 19.2 1 0.6 76.7 87 18.1 1 1.3 72.4 88 17.9 i 1.0 71.6 89 18.6 i 1.0 74.2 90 17.4 1 1.6 69.8 r

91 17.2 i 1.7 68.7 94 19.3 i 1.8 77.0 18.3 1 0.4 Average mR/ Quarter 73.1 1 3.6 Range (16-20) Aver. total mR year. All stations-Range (65.3-79.8)

W 1

_.m m .- m _ _ _ _ _ _ . _ __.__._._-___mm__m______._m__ ___._m.___ .m.__._- _ _ _ ___._._____._m __.__._______._m ________.____m_ . _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ .______m _._m.._____ _ - - _ _ . _ . _ - . - __.___...m__._. _______-___.__m-

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

K. VEGETATION. BROADTRAF (See Tables K-1 and K-2)

STATIONS 35.96.101.102 i Broadleaf vegetation was collected each month from May through October. Three samples were collected each month from each station plus a quality control sample with the exception of Stauon 101 which was collected in May only and Stauon 35 which was not collected in June due to flooding. :

The samples were tested for 1-131 by chemical separation and for gamma emitting isotopes by high resolution spectrometry.

The naturally occurring isotopes Be-7, K-40, and Tn-228 were de-tected in the samples at normal environmental levels. Radium-226 was detected in two samples with an average of 0.45 pct /g wet. No I-131 was de-tected in any of the 60 samples. Cesium-137 was detected in eleven samples at an average of 0.055 pCi/gm, wet. Cesium-137 is detected in other areas of the United States and is attributed to fallout from previous atomic weapons .

testing. The amounts detected are not considered to be significant.

See Figure K-1 for the levels of activities in food samples as repre- ,

sented in broadleaf vegetation in 1996. l r

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TABLE R-1 1996 QUARTERLY REPORT NEBRASKA PUBLIC POWER DISTRICT COOPER NUCLEAR STATION EXPOSURE PATHWAY - INGESTION BROADLEAF TERRESTRIAL VEGETATION PCI/GM, WET SAMPLE STATION SECOND QUARTER THIRD QUARTER FOURTH QUARTER NUCLIDE WUMBER 05/14-05/15.06/25 07/16,08/13,09/24 10/08 I-131 35,96,101, Meanistd.dev. L.T. 5. E-02 L. T. 2. E-02 L. T. 8. E-03 (bj chemical 102 det./ total 0/20 0/30 0/10 (separation) range - -- -

Be-7 35,96,101, Meanistd.dev. 1.1 1 0.5 E 00 2.3511.40E 00 2.5010.63E 00 102 det./ total 20/20 30/30 10/10 range (0.38-2.0) E 00 (0.57-5.73E 00 (1.38-3.23)E 00 K-40 35,96,101, Meanistd.dev. 5.1 1 1.1 E 00 5.50il.82E 00 5.33tl.48E 00 5

9 102 det./ total 20/20 30/30 10/10 range (3.56-7.11)E 00 (2.0-8.5)E 00 (2.4 6-8.37)E 00 Co-60 35,96,101, Meanistd.dev. L. T. 2. E-02 L. T. 2. E-02 L. T. 2. E-02 102 det./ total 0/20 0/30 0/10 range - - --

Ru-103 35,96,101, Meanistd.dev. L. T. 2. E-02 L. T. 2. E-02 L. T. 2. E-02 102 det./ total 0/20 0/30 0/10 range I

I-131 35,96,101, Meanistd.dev. L. T. 2. E-02 L. T. 5. E-02 L. T. 3. E-02 i (by ganuna 102 det./ total 0/20 0/30 0/10

~

spectroscopy) range - -- -

Ce-134 35,96,101, Meanistd.dev. L. T. 2. E-02 L. T. 2. E-02 L. T. 2. E-02 102 det./ total 0/20 0/30 0/10 range - -- - '

i

g.J' TABLE-E-1 1996 QUARTERLY REPORT NEBRASKA PUBLIC POWER DISTRICT

COOPER NUCLEAR STATION EXPOSURE PATHWAY - INGESTION BROADLEAF TERRESTRIAL VEGETATION PCI/GM, NET SAM LE STATION SECOND QUARTER THIRD QUARTER ~ FOURTH QUARTER WDCLIDE NUMBER 05/14-05/15,06/25 07/16,08/13.09/24 10/08 Co-137 35,96,101 Meanistd.dev. 2.2710.59 E-02 L. T. 3. E-02 6.2013.30.E-02 102 det./ total 2/20 0/30 9/10 range (1. 85-2. 69) E-02 --

(7.84-104) E-03 Ba-140 35,96,101, Meanistd.dev. L. T. 2. E-02 L. T. 2. E-02 L. T. 2. E-02 102 det./ total 0/20 0/30 0/10 range - -- -

.'" Ra-226 35,96,101, Meanistd.dev. 3.75tl.21E-01 5.1812.00E-01 L. T. E-01 p b- 102 det./ total 1/20 1/30 4.

0/10 range - - -

Th-228 35,96,101, Meanistd.dev. 1.2710.74 E-01 1.1110.52E-01 7. 5412. 64 E-02 102 det./ total 16/20 10/30 1/10..

range (0.20-2.44)E-01 (0. 38-1. 99) E-01 --

. . -._ _ .m . . .

TABLE K-2 -i 1996 QUARTERLY REPORT ' -

NEBRASKA PUBLIC POWER DISTRICT ,

COOPER NUCLEAR STATION i

EXPOSURE PATHWAY - INGESTION BROADLEAF TERRESTRIAL VEGETATION - PCI/GH, WET SAMPLE STATION FIRST QUARTER SECOND QUARTER THIRD QUARTER NUCLIDE FOURTH QUARTER MUMBER 05/14-05/15.06/25 07/16.08/13.09/24 10/08 ;

BE-7 35,96,101,102 1.1 10.5 E 00(20/20) 2.35tl.40E 00 (30/30) 2.5010.63E 00 (10/10) ,

-K-40 35,96,101,102 5.1 i 1.1 E 00(20/20) 5.50il.82E 00(30/30) 5.3311. 48E 00(10/10)

Mn-54 35,96,101,102 2. E-02 (0/20)

L.T. L.T. 2. E-02(0/30) L.T. 2. E-02(0/10)

C@-58 35,96,101,102 E-02 (0/20)

L.T. 2. L.T. 2. E-02 (0/30) L.T. 2. E-02 (0/10)

Fe-59 35,96,101,102 L.T. 4. E-02(0/20) 5.

L.T. E-02 (0/30) L.T. 4. E-02 (0/10)

Co-60 35,96,101,102 L.T. 2. E-02(0/20) L.T. 2. E-02 (0/30) L.T. 2. E-02 (0/10)

En-65 35,96,101,102 L.T. 4. E-02 (0/20) 6.

L.T. E-02 (0/30) L.T. 5. E-02 (0/10)

Er-95 35,96,101,102 L.T. 2. E-02 (0/20) L.T. 2. E-02 (0/30) L.T. 2. E-02 (0/10)

Ru-103 35,96,101,102 L.T. 2. E-02 (0/20) L.T. 2. E-02 (0/30) 'L.T. 2. E-02 (0/10) l Eu-106 35,96,101,102 L.T. 2. E-01 (0/20) L.T. 2. E-01 (0/30) L.T. 2. E-01 (0/10)

I-131 35,96,101.102 L.T. 2. E-02 (0/20) L.T. 5. E-02 (0/30) L.T. 3. E-02 (0/10)

Co-134 35,95,101,102 L.T. 2. E-02(0/20). L.T. 2. E-02(0/30) L.T. 2. E-02 (0/10)

Co-137 35,96,101,102 2.2710.59 E-02 (2/20) L.T. 3. E-02 (0/30) 6.2013.30 E-02 (9/10)

Ba-140 35,96,101,102 L.T. 2. E-02 (0/20) L.T. 2. E-02 (0/30) L.T. 2. E -02 (0/10) ,

Co-141 35,96,101,102 L.T. 3. E-02(0/20) L.T. 3. E-02(0/30) L.T. 3. E-02 (0/10) i C2-144 35,96,101,102 L.T. 1. E-01(0/20) L.T. 1. E-01 (0/30) L.T. 1. E-01 (0/10)

Pa-226 35,96,101,102 3.75tl.21E-01 (1/20) 5.1812. 00E-01 (1/30) 4.

L.T. E-01 (0/10)

Th-228 35,96,101,102 1.2710.74 E-01(16/20) 1.1110.52E-01 (10/30) 7. 5412. 64 E-02 (1/10)

_ _ _ _ _ _ _ _ - _ _ _ _ _ _ _ _ _ . _ - _ _ . _ _ _ _ _ . _ _ _ . _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ m__.____ _ _ _ _ _ ___

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.

They were analyzed for gamma emitters by means of a high resolution gamma spectrometer. In the samples collected the naturally occurring Isotopes Be- :

7, K-40,' Ra-226 and Th-228 were detected at normal environmental levels.

Cesium-137, a fission product, was detected at an average level of 0.082 1 pC1/gm, dry.

For the samples collected in the fourth quarter the naturally occurring isotopes K-40 and Ra-226 were detected at about the same level as in the '

second quarter. Thorium-228 had an average level of 0.99 pCi/gm dry for the year. Beryllium-7 was below the normal detection level in the second ,

quarter and detected at a level of 0.45 pC1/gm dry in the fourth quarter. Die average manganese-54, an activation product, was detected at a level of 0.016 pC1/gm dry. For the samples collected in the second quarter Th-234 was '

detected at a level of 2.28 pCi/gm dry and U-235 was detected at a level of 0.12 pCi/gm dry. All other nuclides were below the detection limit for both the spdng and fall.

Presented in Figure L-1 are the plots of the radionuclides K-40, I-131,. ,

Cs-134 and Cs-137 in shoreline sediment since 1985. No detections of I- i 131 nor Cs-134 were seen and K-40 was at a normal environmental level.

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 l as a good indicator of the effects on the water pathway of any reactor efflu-ents.

i 1

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4 TABLE L-1 '

1996 QUARTERLY REPORT NEBRASKA PUBLIC POWER DISTRICT COOPER NUCLEAR STATION EXPOSURE PATHWAY - AQUATIC SHORELINE SEDIMENT - PCI/GM, DRY SAMPLE STATION SECOND QUARTER THIRD QUARTER FOURTH QUARTER- l 4 NUCLIDE NUMBER 05/07 '10/01 Be-7 28 Meanistd.dev. L.T. 7. E-02 4.4510.46E-01 det./ total 0/1 1/1 range -

K-40 28 Meanistd.dev. 1.9510.20E 01 1.5210.15E 01 det./ total 1/1 gf1 range --

Mn-54 28 Meanistd.dev. 1.80 1 0.62E-02 1. 4 610.35E-02 ;

, det./ total 1/1 1/1 range -

CO-60 28 Meanistd.dev. L.T. 9. E-03 L.T. 6. E-03 I

- det./ total 0/1 0/1 >

y range -- --

1-131 28 Meanistd.dev. L.T. 1. E-02 L.T. 1. E-02 ;

(by gamma det./ total 0/1 0/1 !

spectroscopy) range - --

Cs-134 28 Meanistd.dev. L.T. 1. E-02 L.T. 8. E-03 det./ total 0/1 0/1 range --

-- r Cs-137 28 Meanistd.dev. 9.26 i 0.93E-02 7.0310.70E-02 I i

det./ total 1/1 1/1

range -

i Ra-226 28 Meanistd.dev. 1.09 i 0.11E 00 1.4110.14E 00 det./ total 1/1 1/1 range -- --

Th-228 28 Heanistd.dev. 1.10 1 0.11E 00 8.7410.87E-01 det./ total 0/1 1/1 range - --

i

_. m _- _ . _ _ _ _ _ . _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ . _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ . _ _ _ _ _ _ _ _ _ -_ . -

TABLE L-2 1996 QUARTERLY REPORT NEBRASKA PUBLIC POWER DISTRICT COOPER NOCLEAR STATION EXPOSURE PATHWAY - AQUATIC SHORELINE SEDIMENT - PCI/GM, DRY SAMPLE - STATION FIRST QUARTER SECOND QUARTER THIRD QUARTER FOURTH QUARTER NUCLIDE NUMBER 05/07 10/01 BE-7 .28 L.T. 7. E-02 (0/1) 4. 4510. 4 6E-01 (1/11 K-40 28 1.9510.20 E 01(1/1) 1.5210.15E 01(1/1)

Mn-54 28 1. 80 10. 62 E-02 (1/1) - 1. 4610. 35E-02 (1/1)

Co-58 28 L.T. 8 E-03(0/1) L.T. 6. E-03(0/1)

Fo-59 28 L.T. 2. E-02(0/1) L.T. 1. E-02 (0/1)

Co-60 28 L.T. 9. E-03(0/1) L.T. 6. E-03(0/1)

, En-65 28 L.T. 2. E-02 (0/1) L.T. 1. E-02(0/1)

Zr-95 28 L.T. 1. E-02 (0/1) L.T. 8. E-03 (0/1)

Ru-103 28 L.T. 8. E-03(0/1) L.T. 6. E-03(0/1)

Ru-106 28 L.T. 7. E-02 (0/1) L.T. 5. E-02(0/1) 1-131 28 L.T. 1. E-02(0/1) L.T. 1. E-02 (0/1)

Cc-134 28 L.T. 1. E-02 (0/1) L.T. 8. E-03 (0/1)

Ca-137 28 9.2610.93 E-02 (1/1) 7. 0310. 70E-02 (1/1) l Ba-140 28 L.T. 1. E-02 (0/1) L.T. 9. E-03(0/1) ,

C2-141 28 L.T. 1. E-02 (0/1) L.T. 1. E-02 (0/1) i Ca-144 28 L.T. 6. E-02 (0/1) L.T. 5. E-02 (0/1)

Ra-226 28 1.0910.11 E 00(1/1) 1.4110.14E 00(1/1)

-Th-228 28 1.1010.11 E 00(0/11 8. 7410. 87 E-01 (1/1)

- -. -- _ . _ . - - -_-_s-_.-_--_-__ -.n w ,w- *- - _ - --4~ _ _. a_- ._ < w - . _ _ _ _ ~ w -

__-r ____,_---m____ . _ _ _ - - . _ _ _ _--_._n_-_ -

y--- - -

SECTION VII COMPLETE DATA TABLES .

1 l

l l

l 115

i I

A.D C, l

GROSS ALP 11A, GROSS BETA, I-131 STATIONS 01-10 lif)

MEBRASKA PUBLIC POWER DISTRICT i COOPER NUCLEAR STATION EXPOSURE PATIIWAY - AIRBORNE l AIR PAR 11CULATE & CIIARCOAL Fil'IERS STAT 10N NUMBER 01 STAT 10N 01 - 0.1 MI. 225 DEG. IND.

COLL TIME AP FILTER AP FIL1ER MID-COUNT CHARCOAL FILTER START STOP GROSS BETA GROSS ALPHA TIME l-131 DATE DATE VOLUME UNITS (PCI/CU.M.) (PCI/CU.M.) DATE TIME (PCI/CU. M.)

01/02 01/09 1.02E 04 CU.FT. 3.5 1 0.4 E-02 3.9 i 1.7 E-03 0I/13 LT. 3. E-02 0I/09 01/16 9.98E 03 CU. FT. 2.4 1 0.3 E-02 LT. 1. E-03 01/18 LT. 3. E-02 01/16 01/23 1.00E 04 CU. FT. 3.0 1 0.4 E-02 2.9 i 1.7 E-03 01/25 LT. 2. E-02 01/23 01/30 1.02E 04 CU. FT. 2.7 1 0.3 E.02 1.2 i 1.0 E-03 02/01 LT. 2. E-02 01/30 02/06 9.98E 03 CU. FT. 3.6 1 0.4 E-02 2.1 i 1.2 E-03 02/08 LT. 3. E-02 02/06 02/13 1.01E 04 CU. FT. 2.1 1 0.3 E-02 1.8 i 1.4 E-03 02/15 L T. 2. E-02 02/13 02/20 1.01E 04 CU. FT. 2.0 1 0.3 E-02 3.0 i 1.4 E-03 02/23 LT. 3. E-02 02/20 02/27 1.01E 04 CU. FT. 2.3 1 0.3 E-02 3.1 i 1.5 E-03 02/29 LT. 3. E-02 C2/27 03/05 1.01E 04 CU. FT. 2.7 1 0.3 E-02 2.1 i 1.2 E-03 03/08 LT. 3. E-02 C3/05 03/12 1.00E 04 CU. FT. 1.9 1 0.3 E.02 LT.2. E.03 03/14 LT, 3. E-02 03/12 03/19 1. ole 04 CU. FT. 2.0 1 0.3 E-02 3.5 i 1.5 E-03 03/22 LT. 2. E-02 03/19 03/26 1.01E 04 CU. FT. 1.9 i 0.3 E.02 3.2 i 1.6 E-03 03/28 LT. 2. E-02 03/26 04/02 1.01E 04 CU. FT. 2.0 1 0.3 E.02 2.1 i 1.5 E.03 04/04 L T. 3. E-02 q 04/02 04/09 9.95E 03 CU. FT. 2.2 i O.3 E-02 3.3 i 1.6 E-03 04/13 LT. 3. E.02 04/09 04/16 1.01E 04 CU. FT. 2.0 1 0.3 E-02 3.0 i 1.5 E-03 04/19 LT. 3. E-02 04/16 04/23 1.00E 04 CU. FT. 1.410.3 E-02 LT. 1. E-03 04/26 LT. 3. E-02 C4/23 04/30 1.0 1 E 04 CU. FT. 1.5 1 0.3 E-02 2.3 i 1.3 E-03 05/02 LT. 3. E-02 04/30 05/07 1.01E 04 CU. FT. 2.0 1 0.3 E-02 1.6 i 1.2 E-03 05/09 LT. 2. E-02 05/07 05/14 1. ole 04 CU. FT. 1.2 1 0.3 E-02 1.4 i 1.1 E-03 05/10 LT. 2. E-02 05/14 05/21* 9.95E 03 CU. FT. 4.8 i 0.8 E 00 LT.5. E-O l 05/23 L T. 7. E 00 C5/21 05/28 1.01E 04 CU. FT. 1.6 i 0.3 E-02 LT.2. E-03 05/30 LT. 3. E-02 C5/28 06/04 1.02E G4 CU. FT. 1.5 1 0.3 E-02 1.8 i 1.3 E-03 06/06 LT. 2. E.02 06/04 06/11 1.00E 04 CU. FT. 1.8 i 0.3 E-02 2.6 i 1.5 E-03 06/13 LT. 3. E-02 06/11 06/18 9.97E 03 CU. FT. 2.0 1 0.3 E-02 1.4 i 1.2 E-03 06/20 LT. 3. E-02 06/18 06/25 1.01E 04 CU. FT. 1.6 1 0.3 E-02 LT.2. E-03 06/27 LT. 3. E-02 06/25 07/02 1.01E 04 CU. FT. 2.2 1 0.3 E-02 3.0 11.5 E-03 07/04 LT. 2. E-02 07/02 07/09 1.02E 04 CU. FT. 2.I10.3 E-02 LT.2. E-03 07/11 LT. 2. E-02 07/09 07/16 1.00E 04 CU. FT. 1.9 i 0.3 E-02 1.6 i 1.1 E-03 07/19 LT. 2. E-02 07/16 07/23 1.00E 04 CU. FT. 1.4 i 0.3 E-02 1.2 i 1.1 E-03 07/25 L T. 2. E-02 07/23 07/30 1.01E 04 CU. FT. 1.5 1 0.3 E-02 LT.2. E-03 08/01 LT. 1. E-02 07/30 08/06 1.01E 04 CU. FT. 1.9 i O.3 E-02 2.0 i 1.4 E.03 08/09 LT. 3. E-02

' Air collection horn had vibrated loose. Analyze for total activity only.

I NEBRASKA PUBtJC POWER DISTRICT COOPER NUCLEAR STATION EXI'OSURF; PATTIWAY - AIRBORNE AIR PARTICULATE & CHARCOAL F1LTERS -

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

00th TIME AP FILTER AP F1L'IER MID-COUNT ~ CHARCOAL FIL1ER 4 START STOP GROSS BETA GROSS AllHA TIME l-131 DA1E DATE VOLUME UNITS (PCI/CU.M.) (PCI/CU.M.) DATE TIME (PCI/CU. M.)

08/06 08/13 1.01E 04 CU. FT. 1.8 1 0.3 E-02 LT.2. E-03 08/15 LT. 1. E-02 08/13 08/20 1.01E 04 CU. FT. 1.8 1 0.3 E-02 LT. 1. E-03 08/22 LT. 2. '. _ E-02

.08/20 08/27 1.01E 04 CU. FT. 1.9 1 0.3 E-02 LT. 9. E-04 08/29 L T. 2. E-02 08/27 09/03 1.02E 04 CU FT. 4.0 1 0.4 E-02 2.21 1.5 E-03 09/05 LT. 2. E-02

09/03 09/10 9.97E 03 CU. FT. 4.2 1 0.4 E-02 2.1 i 1.2 E-03 09/12 LT. 1. E-02 09/10 09/17 1.00E 04 CU. FT. 2.I 1 0.3 E.02 L T. 1. E-03 09/19. LT. 2. E-02

, 09/17 09/24 1. ole 04 CU. FT. 1.6 1 0.3 E-02 LT.2. E-03_ 09/26 . LT. 2. E-02 09/24 10/01 1. ole 04 CU. FT. 1.8 1 0.3 E-02 1.6 i 1.2 E-03 ' 10/03 LT. 2. E-02 10/01 10/08 1.01E 04 CU. FT. 2.5 1 0.3 E-02 2.6 i 1.3 E-03 10/11 L T. 3. E-02 10/08 10/15* 1.01E 04 CU. FT. 10/17 LT. 3. E-02 C 10/15 10/22* 1.01E 04 CU. FT. 10/24 LT. 3. E-02

~#

10/22 10/29' l.0IE 04 CU. FT. 10/31 ' LT. . 1. E-02 10/29 11/05* 1. ole 04 CU. FT. I1/07 LT. 3. E-02

~l1/05 11/12 1.01E 04 CU. FT. 1.3 1 0.3 E-02 9.9 i 9.4 E-04 11/15 L T. 3. -E-02 11/12 11/19 1.01E 04 CU. FT. 1.5 1 0.3 E-02 1.411.1 E-03 11/21 LT. 2. E-02 4

11/19 11/26 1.01E 04 CU. FT. 1.9 i 0.3 E-02 2.3 i 1.4 E-03 11/28 LT. 2. - E.02 11/26 12/03 1. ole 04 CU. FT. 2.2 1 0.3 E-02 2.6 i 1.3 E-03 12/05 LT. 1. E-02 12/03 12/10 1. ole 04 CU. FT. 1.4 1 0.3 E-02 1.3 i 1.1 E-03 12/12- LT. 3. E-02 12/10 12/17 1. ole 04 CU. FT. 2.4 1 0.3 E-02 2.0 t 1.4 E.03 12/20 LT. 2. E 12/17 12/23 8.77E 03 CU. FT. 2.3 1 0.4 E-02 LT.2. E-03 12/25 LT. 1. E-02 12/23 12/30 1.00E 04 CU. FT. 3.0 i O.4 E-02 2.7 i 1.6 E-03 01/01 LT. - 1. E-02

As with the previous week, the AP filter for station 01 had a very light deposit.

1

. _ ..- _ . . _ ___ _ _ _ - _ _ . . . _ . , - ,~, . . . ~ . - . , _ _ _-.. .__ - .__. . _ _ _ _ . , . _ _ _ . . _ _ _ , -

NEBRASKA PUBLIC POWER DISTRICT COOPER NUCLEAR STATION EXPOSURE PATHWAY - AIRBORNE AIR PARTICUIATE & CllARCOAL FlLTERS STAllON NUMBER 02 STATION 02 - 0.75 MI. 225 DEC'. IND.

COIL TlME AP FILTER AP FILTER MID-COUNT START STOP CilARCOAL FIL'IER GROSS BETA GROSS ALP 11A TIME I-131 DATE DATE VOLUME UNITS (PCl/CU.M.) (PCl/CU.M.) DATE TIM E (PCl/CU. M.)

Cl/02 01/09 1.02E 04 CU. FT. 3.5 i O.4 E-02 3.2 1.6 E-03 01/13 LT. 3. E-02 C1/09 0I/16 9.97E 03 CU. FT. 2.5 1 0.3 E-02 2.4 i 1.4 E-03 01/18 LT. 3. E-02 G1/16 0I/23 1.00E 04 CU. FT. 3. I i 0.4 E-02 LT.2. E-03 0I/25 L T. 2. E-02 01/23 01/30 1.02E 04 CU. FI'. 2.4 1 0.3 E-02 1.3 i 1.0 E-03 02/01 LT. 2. E-02 G1/30 02/06 9.98E 03 CU. FT. 4.4 1 0.4 E-02 1.2 i 1.0 E-03 02/08 L T. 3. E-02 02/06 02/13 1.0IE 04 CU. FT. 1.4 1 0.3 E-02 LT.2. E-03 02/15 L T. 2. E-02 02/13 02/20 1.01E 04 CU. FT. 1.7 1 0.3 E-02 1.4 i 1.0 E-03 02/23 LT. 3. E-02 02/20 02/27 1.01E 04 CU. FT. 2.2 1 0.3 E-02 3.5 i 1.6 E-03 02/29 LT. 3. E-02 02/27 03/05 1.01E 04 CU. FT. 2.1 1 0.3 E-02 1.3 i 1.0 E-03 03/08 L T. 3. E-02 03/05 03/12 1.00E 04 CU. FT. 2.5 1 0.3 E-02 2.3 i 1.7 E-03 03/14 L T. 3. E-02 03/12 03/19 1.01E 04 CU. FT. 1.6 1 0.3 E-02 2.3 i 1.3 E-03 03/22 L T. 2. E-02 C3/19 03/26 1.01E 04 CU. FT. 1.9 i 0.3 E-02 2.2 i 1.4 E-03 03/28 LT. 2. E-02 C 03/26 04/02 1. ole 04 CU. FT. 2.1 i O.3 E-02 LT.2. E-03 04/04 LT. 3. E-02 0

04/02 04/09 9.97E 03 CU. FT. 1.8 i 0.3 E-02 3.0 i 1.5 E-03 04/13 LT. 3. E-02 04/09 04/16 1.01 E 04 CU. FT. 1.7 1 0.3 E-02 2.4 i 1.4 E-03 04/19 LT. 3. E-02 04/16 04/23 1.00E 04 CU. FT. 1.6 i 0.3 E-02 LT. 1. E-03 04/26 L T. 3. E.02 04/23 04/30 1.01E 04 CU. FT. 1.6 1 0.3 E-02 LT. 1. E-03 05/02 LT. 3. E-02 04/30 05/07 1.01E 04 CU. FT. 2.0 1 0.3 E-02 2.711.4 E-03 05/09 LT. 2. E-02 05/07 05/14 1.01E 04 CU. FT. 1.2 1 0.3 E-02 LT. 1. E-03 05/16 L T. 2. E-02 C5/14 05/21 9.94E 03 CU. FT. 1.9 i 0.3 E-02 2.7 i 1.7 E-03 05/23 L T. 3. E.02 C5/21 05/28 1.01E 04 CU. FT. 1.1 i 0.2 E-02 LT.2. E-03 05/30 L T. 3. E.02 05/28 06/04 1.02E 04 CU. FT. 1.4 i O.3 E-02 2.2 i 1.4 E-03 06/06 LT. 2. E-02 06/04 06/11 1.00E 04 CU. FT. 2.2 i 0.3 E-02 4.4 i 1.8 E-03 06/13 LT. 3. E-02 06/11 06/18 9.96E 03 CU. FT. 1.8 i 0.3 E-02 2.4 1 1.4 E-03 06/20 LT. 3. E-02 06/18 06/25 1.01E 04 CU. FT. 1.8 1 0.3 E-02 LT.2. E-03 06/27 LT. 3. E-02 06/25 07/02 1.01 E 04 CU. FT. 2.1 1 0.3 E-02 1.4 11.1 E-03 07/04 LT. 2. E-02 07/02 07/09 1.02E 04 CU. FT. 2.1 1 0.3 E-02 LT.2. E.03 07/11 LT. 2. E-02 C7/09 07/16 1.00E 04 CU. FT. 2.0 i 0.3 E-02 3.6 i 1.5 E-03 07/19 LT. 2. E.02 C7/16 07/23 9.96E 03 CU. FT. 1.5 1 0.3 E-02 2.4 i 1.5 E-03 07/25 LT. 2. E-02 C7/23 07/30 1.01E 04 CU. FT. 1.7 i 0.3 E-02 LT.2. E-03 08/01 LT. 1. E-02 07/30 08/06 1..n S 04 CU. FT. 2.1 1 0.3 E-02 2.3 i 1.4 E-03 08/09 LT. 3. E-02 08/06 08/13 1. ole 04 CU. FT. 1.9 i 0.3 E-02 LT.2. E-03 08/15 LT. 1. E-02 08/13 08/20 1. ole 04 CU. FT. 2.0 1 0.3 E-02 LT. 1. E-03 08/22 L T. 2. E-02 08/20 08/27 1.01E 04 CU. FT. 1.9 1 0.3 E-02 2.4 i 1.3 E-03 08/29 LT. 2. E-02

NEBRASEA FUBUC POWER DISTRICT COOPER NUCLEAR STA110N EXPOSURE PAT 11WAY - AIRDORNE AIR PAR 11CUIATE & CHARCOAL FILTERS STA110N NUMBER O2 STATION 02 - 0.75 ML 225 DEG. IND COIL TIME AP FIL'IER AP FIL*IER MID-COUNT CHARCOAL FIL1ER START STOP GROSS BETA GROSS ALPHA TIME I-131 DATE DATE VOLUME UNITS (PCI/CU.M.) (PCI/CU.M.) DATE TIME (PCI/CU. M.)

08/27 09/03 1.02E 04 CU. FT. 3.5 1 0.4 E-02 2.0 i 1.4 E-03 09/05 L T. 2. E-02 09/03 09/10 9.93E 03 CU. FT. 4.2 i O.4 E-02 3.5 i 1.5 E-03 09/12 LT. 1. E.02 09/10 09/17 7.10E 03 - CU. FT. 3.2 1 0.5 E-02 4.2 i 2.2 E-03 09/19 L T. 2. E-02 09/17 09/24 Sample Not Collected 09/24 10/01 8.51E 03 CU. FT. 1.9 i 0.3 E-02 LT. 2. E.03 10/03 L T. 3. E-02 10/01 10/08 1.02E 04 CU. FT. 2.4 1 0.3 E-02 3.8 i 1.6 E-03 10/11 LT. 3. E-02 l 10/08 10/15 1.00E 04 CU. FT. 2.5 i 0.3 E-02 2.9 i 1.6 E-03 10/17 LT. 3. E-02 10/15 10/22 1.01E 04 CU. FT. 2.1 1 0.3 E-02 2.4 i 1.3 E-03 10/24 LT. 3. E.02 10/22 10/29 Sample Not Available

. 10/29 11/05 1.01E 04 CU. FT. 2.1 1 0.3 E-02 2.2 i 1.2 E-03 11/07 LT. 3. E 02 l 11/05 11/12 1.01E 04 CU. FT. 2.3 1 0.3 E.02 3.0 i 1.4 E-03 1I/15 LT. 3. E-02 i '11/12 11/19 1.01E 04 CU. FT. 2.7 1 0.4 E-02 3.3 i 1.5 E.03 11/21 LT. 2. E.02 I

I1/19 11/26 1.01E 04 CU. FT. 2.7 i 0.3 E-02 1.4 i 1.2 E-03 11/28 L T. 2. E-02 l'G O

11/26 12/03 1. ole 04 CU. FT. 3.0 1 0.4 E-02 LT.9. E-04 12/05 LT. 1. E-02 12/03 12/10 1.01E 04 CU. FT. 1.8 i 0.3 E-02 2.0 i 1.3 E-03 12/12 LT. 3. E-02 12/10 12/17 9.94E 03 CU. FT. 3.1 1 0.4 E-02 2.2 i 1.5 E-03 12/20 LT. 2. E-02 12/17 12/23 8.43E 03 CU. FT. 3.2 1 0.4 E-02 3.4 1 2.0 E-03 12/25 LT. 1. E-02 12/23 12/30 9.74E 03 CU. FT. 3.8 i 0.4 E-02 3.5 i 1.8 E-03 01/01 LT. 1. E-02

MEBRASKA PUBlJC POWER DISTRICT COOPER NUCLEAR STKHON EXPOSURE PATilWAY - AIRBORNE '

AIR PARUCUIATE & CllARCOAL FIL'IERS STATION NUMBER 03 STATION 03 - 2.5 MI. 338 DEC IND.

COLL TlME AP FILTER AP FILTER MID-COUNT CILARCOAL FIL"lER START STDP GROSS BETA GROSS ALPflA TIME l-131 DATE DATE VOLUME UNITS (PCI/CU.M.) (PCI/CU.M.) DATE TlME (PCI/CU. M.)

0I/02 01/09 1.03E 04 CU. FT. 3.2 1 0.4 E-02 3.9 i 1.7 E-03 01/13 LT. 3. E-02 01/09 01/16 9.84E 03 CU. FT. 2.1 1 0.3 E-02 1.7 i 1.2 E-03 01/18 LT. 3. E-02 01/16 01/23 1. ole 04 CU. FT. 3.1 1 0.4 E-02 LT.2. E-03 01/25 L T. 2. E-02 0I/23 01/30 1.01E 04 CU.FT. 2.4 i O.3 E-02 1.6 i 1.I E-03 02/0I L T. 2. E-02 01/30 02/06 9.95E 03 CU. IT. 5.0 1 0.4 E-02 3.3 1 1.5 E-03 02/08 ' LT. 3. E-02 02/06 02/13 1.00E 04 CU. FT. 1.8 i O.3 E-02 2.3 i 1.5 E.03 02/15 LT. 2. E-02 02/13 02/20 1.01E 04 CU. FT. 2.1 1 0.3 E-02 0.9210.87 E-03 02/23 LT. 3. E-02 02/20 02/27 1.02E 04 CU. FT. 2.5 1 0.3 E-02 3.9 i 1.6 E-03 02/29 LT. 3. E-02 02/27 03/05 1.01E 04 CU. FT. 2.4 1 0.3 E-02 1.8 i 1.1 E-03 03/08 LT. 3. E-02 i 03/05 03/12 1.00E 04 CU. FT. 2.5 1 0.3 E-02 3.0 t 1.8 E 03 03/14 LT. 3. E-02 03/12 03/19 1. ole 04 CU. FT. 1.8 1 0.3 E-02 5.0 i 1.8 E-03 03/22 LT. 2. E-02 '

03/19 03/26 1.01E 04 CU. FT. 1.7 i O.3 E-02 3.0 i 1.6 E-03 03/28 LT. 2. E-02 i G

03/26 04/02 1.01E 04 CU. FT. 2.1 1 0.3 E-02 2.0 11.4 E-03 04/04 LT. 3. E-02 i 04/02 04/09 1.01E 04 CU. FT. 1.9 1 0.3 E-02 3.0 i 1.5 E-03 04/13 L T. 3. E-02 04/09 04/16 9.94E 03 CU. FT. 1.4 i 0.3 E-02 L T. 1. E-03 04/19 LT. 3. E-02 04/16 04/23 1.01E 04 CU. FT. 1.6 1 0.3 E-02 1.6 i 1.3 E-03 04/26 LT. 3. E-02

~

04/23 04/30 1.02E 04 CU. FT. 1.6 i 0.3 E-02 LT. 1. E-03 05/02 LT. 2. E-02 04/30 05/07 1.00E 04 CU. FT. 1.9 i 0.3 E-02 2.9 i 1.5 E-03 05/09 LT. 2. E-02 05/07 05/14 1.14E 04 CU. FT. 1.3 1 0.2 E-02 2.2 i 1.2 E-03 05/16 L T. 2. E-02 05/14 05/21 8.53E 03 CU. FT. 1.6 1 0.3 E-02 LT.2. E-03 05/23- LT. 3. E-02 05/21 05/28*

05/28 06/04 2.04E 04 CU. FT. 1.5 i 0.2 E-02 1.8 1 0.8 E-03 06/06 LT. 2. E-02 06/04 06/11 1.00E 04 CU. FT. 1.7 i 0.3 E-02 2.0 i 1.4 E-03 06/13 LT. 3. E-02 06/11 06/18 9.97E 03 CU. FT. 2.1 1 0.3 E-02 3.2 i 1.6 E-03 06/20 LT. 3. E-02 06/18 06/25 "

06/25 07/02" 07/02 07/09 " t 07/09 07/16 1.03E 04 CU. FT. 1.8 i 0.3 E-02 2.2 i 1.2 E-03 07/19 LT. 2. E-02 07/16 07/23 9.77E 03 CU. FT. 3.4 1 0.4 E-02 2.1 i 1.4 E-03 07/25 LT. 2. E-02 07/23 07/30 1. ole 04 CU. FT. 1.7 1 0.3 E-02 LT. 2. E-03 08/01 LT. 1. E-02 07/30 08/06 1.01E 04 CU. FT. 2.0 1 0.3 E-02 L T. 1. E-03 08/09 LT. 3. E-02 07/30 08/06 1. ole 04 CU. FT. 2.0 i O.3 E-02 LT. 1. E-03 08/09 LT. 3. E-02

Not collected due to flood waters around the station.

" Sample not collected

l l -

NEBRASKA PUBUC PO4FER DISTRICT

' ~ COOPER NUCIE.AR STA110N EXPOSURE PATHWAY - AIRBORNE AIR PARDCUtEIE & CHARCOAL FILTERS-

~

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

COIL TIME AP FIL'IER IP FILTER MID-COUNT CHARCOAL FIL~IER START STOP GROSS BETA GROSS AIPHA TIME - I-131

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

[ 08/06 06/13 1.01E 04 CU. FT. 1.9 i O.3 E.02 LT.2. E-03 08/15 L T. 1. E l 08/13 06/20 9.77E 03 CU. FT. 1.8 1 0.3 E-02 LT. 1. E-03 08/22 LT. 2. E-02 1

08/20 08/27 9.69E 03 CU. FT. 1.7 1 0.3 E-02 1.6 i 1.1 E-03 08/29 L T. 3. E-02 08/27 09/03 1.02E 04 CU. FT. 3.3 1 0.4 E-02 LT.2. E-03 09/05 LT. 2. E-02 09/03 09/10 1.00E 04 CU. FT. 3.6 i 0.4 E-02 2.7 i 1.3 E-03 '09/12 LT. ' l. E-02 09/10 09/17 9.99E 03 CU. FT. 3.0 1 0.5 E-02. 2.5 i 1.9 E-03, 09/19 LT. 2.. E-02 09/17 09/24 1.02E 04 CU. FT. 1.5 i O.3 E-02 LT.2. E-03 -09/26 L T. 2. E-02 09/24 10/01 1.00E 04 CU. FT. 1.8 1 0.3 E-02 LT. 1. E-03 10/03 . L T. 2. E-02 l 10/01 10/Os 1.03E 04 CU. FT. 2.1 1 0.3 E-02 1.7 i 1.1 E-03 10/11 LT. 2. E-02 10/Os 10/15 9.82E 03 CU. FT. 2.7 1 0.3 E-02 2.5 i 1.6 E-03 10/17 L T. 3 E-02 10/15 10/22 1.02E 04 CU. FT. 2.2 1 0.3 E-02 2.1 i 1.2 E-03 10/24 LT. 2. E-02 10/22 10/29 1.00E 04 CU.FT. 1.5 1 0.3 E.02 LT.2. E-03 10/31 LT. 1. E-02 10/29 11/05 9.98E 03 CU. FT. 2.1 1 0.3 E-02 9.3 i 8.8 E-04 11/07 LT. 3. E-02 11/05 1I/12 1.00E 04 CU. FT. 1.8 i 0.3 E-02 2.0 i 1.2 E-03 1I/15 LT. 3. E M 11/12 11/19 1.01E 04 CU. FT. 2.5 1 0.3 E-02 2.3 i 1.3 .E-03 11/21: LT. 2. E-02 11/19 11/26 1.01E 04 CU. FT. 2.5 i 0.3 E-02 2.0 1 1.3 E-03 11/28 LT. 2. E-02 11/26 12/03 1. ole 04 CU. FT. 3.0 1 0.4 E-02 2.6 i 1.3 E-03 12/05 LT. L E-02 i 12/03 12/10 1.01E 04 CU. FT. 2.0 i 0.3 E LT. 1. E-03 12/12 L T. 3. E 12/10-12/17 1.0lE 04 CU. FT. 2.9 i 0.4 E-02 2 1 1 1.6 E-03 12/20 LT. 2. E-02 12/17 12/23 8.77E 03 CU. FT. 2.8 1 0.4 E-02 2.6 i 1.8 E-03 12/25 L T. 1. .E-02 12/23 12/30 1.00E 04 CU. FT. 4.110.4 E-02 2.4 i 1.6 E-03 01/01 L T. 1. E-02 i

L l

I j

.c$,

COOPER NUCLEAR STATION

' EG'OSURE PATHWAY - AIRBORNE AIR PAR 11CUIATE & CHARCOAL F1LTERS STATION NUMBER 04 -

STA110N 04 - 3.0 MI. 43 DEC. IND.

_ COLL. TIME ' AP FILTER AP FILTER MID-COUNT CIIARCOAL FIL1ER .;

START STOP .

GROSS BETA GROSS AIMIA TIME I-131 DATE DATE VOLUME UNITS (PCI/CU.M.) (PCI/CU.M.) ' DATE TIME (PCI/CU. M.)

01/02 01/09 1.03E 04 CU. FT. 2.9 1 0.3 E-02 2.8 i 1,5 -E-03 01/13 L T. 3. E -GI/09 01/16 9.82E 03 CU. FT. 2.4 1 0.3 E-02 1.8 i 1.2 .E-03 01/18 LT. 3. E-02

- 01/16 01/23 1. ole 04 CU. FT. 2.6 1 0.3 E-02 3.1 i 1.7 E-03 01/25 L T. 2.- E C1/23 01/30 1.01E 04 CU. FT. 2.4 1 0.3 E-02 1.4 i 1.1 E-03 02/01 L T. 2. E-02 1

01/30 02/06 9.97E 03 CU. FT. 3.7 i 0.4 E-02 1.5 i 1.1 E-03 02/08 L T. 3. E-02 -i 02/06 02/13 'l. ole 04 CU. FT. 2.1 i 0.3 E-02 2.0 t 1.4 E-03 02/15 LT. 2. E.02 02/13 02/20 - 1.01E 04 CU.R. 2.2 1 0.3 E-02 LT. 0.9 E 02/23 LT. 3. E-02' 02/20 02/27 1.02E 04 CU. FT. 2.0 1 0.3 E-02 3.9 i 1.6 E-03 02/29 LT. 3. E-02 02/27 03/05 - 1. ole 04 CU.R. 2.7 i 0.3 E-02 1.8 i 1.1 E-03 03/08 L T. 3. E-02

' C3/05 03/12 1.00E 04 CU. FT. 2.3 1 0.3 E-02 3.2 i 1.8 -E-03 03/14 LT. 3. E-02

.- C3/12 03/19 1.01E 04 CU. FT. 1.6 i 0.3 E-02 3.4 i 1.5 E-03 03/22- L T. 2. E-02 t 18 C3/19 03/26 1.02E 04 CU. FT. 1.6 1 0.3 -E-02 2.0 i 1.4 E-03 03/28 L T. 2.- E-02 C3/26 04/02 1.01E 04 CU. FT. 1.8 i 0.3 E-02 2.7 11.6 E-03 04/04 LT. 3. E-02 04/02 04/09 1.00E 04 CU. FT. 1.8 i 0.3 E-02 1.9 i 1.2 E-03 04/13 LT. 3. E-02 04/09 04/16 9.98E 03 CU. FT. 1.4 i O.3 E-02 2.4 i 1.4 E-03 04/19 LT. 3. E-02 04/16 04/23- 1.01E 04 CU. FT. 1.3 i 0.3 E-02 1.8 i 1.4 E-03 04/26 LT. 3. E-02 t 04/23 04/30 1.02E 04 CU. FT. 1.5 1 0.3 E-02 2.5 i 1.4 E-03 05/02 LT. 2. E-02

- 04/30 05/07 1.00E 04 CU.R. 1.9 i 0.3 E-02 1.411.1 E-03 05/09 LT. 2. E-02 05/07 05/14 1.00E 04 CU. FT. 1.5 1 0.3 E-02 2.0 i 1.3 E-03 05/16 LT. 2. E-02 05/14 05/21 9.91E 03 CU. FT. 1.7 i O.3 E-02 LT.2. E-03 05/23 LT. 3. E-02 C5/21 05/28 1.02E 04 CU. FT. 1.4 1 0.3 .E-02 LT. 2. E-03 05/30 LT. 2. E-02 C5/28 06/04 1.02E 04 CU. FT. 1.510.3 E-02 LT. 1. E-03 06/06 L T. 2.-- E-02 -

06/04 06/11 9.98E 03 CU.R. 2.3 i O.3 E-02 2.4 i 1.5 E-03 06/13 LT. 3. E-02 06/11 06/18 9.97E 03 CU. FT. 1.9 1 0.3 E-02 1.4 i 1.2 E-03 06/20 LT. 3. E-02 06/18 06/25 1.02E 04 CU. FT. 1.8 1 0.3 E-02 LT. 2. E-03 06/27 LT. 2. E-02 06/25 07/02 1.01E 04 CU. FT. 2.2 i 0.3 E-02 2.4 11.4 E-03 07/04 LT. 2. E-02 07/02 07/09 1.01E 04 CU.R. 1.9 1 0.3 E-02 LT.2. E-03 07/11 LT. 2. E-02 C7/09 07/16 1.02E 04 CU. FT. 2.5 1 0.3 E-02 -2.7 11.4 E-03 07/19 LT. 2.- E-02 -!

07/16 07/23 9.77E 03 CU. FT. 2.3.i 0.4 E-02 LT. 1. E-03 07/25 LT. 2. E-02 07/23 07/30 1.01E 04 CU. FT. 1.5 1 0.3 E-02 LT. 1. E-03 08/01 LT. 1. E-02 G7/30 08/06 1. ole 04 CU. FT. 1.7 i 0.3 E-02 2.1 i 1.4 E-03 08/09 L T. 3. E-02.

08/06 08/13 1.01E 04 CU. FT. 2.0

0.3 E-02 LT.2. E-03 08/15 L T. 1. E-02 08/06 08/13 1. ole 04 CU. FT. 2.0 0.3 E-02 LT.2. E-03 08/15 L T. 1. E-02

. NEERASEA FUBtJC FUEFER DISTRICT COOPER NUCLEAR STA110N EXPOSURE PA~IHWAY - AIRBORNE AIR PAR 11CULA1E & CHARCOAL F1LTERS STAT 10N NUMBER 04 STA110N 04 - 3.0 MI. 43 DEG. IND.

COIL TIME AP FILTER AP FILTER MID-COUffr CHARCOAL FIL1ER START STOP GROSS BETA GROSS AIPHA TIME I-131 DA1E DATE VOLUME UNITS (PCI/CU.M.) (PCl/CU.M.) DATE TIME (PCI/CU. M.)

08/13 08/20 1.01E 04 CU FT. 2.3 1 0.3 E-02 2.3 i 1.4 E-03 08/22 LT. 2. E 08/20 08/27 1.00E 04 CU. FT. 2.1 2 0.3 E-02 1.911.2 E-03 08/29 LT. 2. E-02 D8/27 09/03 1.02E 04 CU. FT. 5.2 i O.5 E-02 4.2 1 1.8 E-03 09/05 LT. 2. E-02 09/03 09/10 1.00E 04 CU. FT. 3.5 i O.4 E-02 2.3 i 1.2 E-03 09/12 L T. 1. E-02 09/10 09/17-- 1.00E 04 CU. FT. 2.4 i 0.3 E-02 LT.2. E-03 09/19- LT. 2. E-02 09/17 09/24 1.02E 04 CU. FT. 2.I 1 0.3 E-02 LT.2. E-03 09/26 LT. 2. E-02 09/24 10/01 1.00E 04 CU. FT. 1.8 i 0.3 E-02 LT. 1. E-03 10/03 LT. 2. E-02 10/01 10/08 1.03E 04 CU. FT. 2.5 1 0.3 E-02 4.7 i 1.7 E-03 10/11 LT. 2. E-02 10/06 10/15 9.87E 03 CU. FT. 2.4 i 0.3 E-02 2.5 i 1.6 E-03 10/17 LT. 3. E.02 10/15 10/22 1.02E 04 CU. FT. 1.8 1 0.3 E-02 2.0 i 1.2 E-03 10/24 LT. 2. E.02 10/22 10/29 1.00E 04 CU.FT. 2.3 1 0.3 E-02 LT.2. E-03 10/31 LT. 1.' E-02 y 10/29 11/05 1. ole 04 CU. FT. 2.1 1 0.3 E-02 2.2 i 1.2 E-03 11/07 LT. 3. E-02 ,

a 11/05 11/12 1.01E 04 CU. FT. 1.5 1 0.3 E-02 LT.9. E-04 11/15 LT. 3. E-02 11/12 11/19 1.0lE 04 CU. FT. 1.9 i 0.3 E-02 2.1 i 1.2 E.03 11/21 LT. 2. E-02 11/19 11/26 1.01E 04 CU. FT. 2.4 i 0.3 E-02 3.1 i 1.6 E-03 11/28 LT. 2. E-02 11/26 12/03 1.01E 04 CU. FT. 2.3 1 0.3 E-02 1.3 i 1.0 E-03 12/05 LT. 1. E-02 12/03 12/10 1.01E 04 CU. FT. 1.8 i 0.3 E-02 1.6 11.2.' E-03 12/12 LT. 3. E.02 12/10 12/17 1. ole 04 CU. FT. 2.4 i 0.3 E-02 2.6 11.6. E-03 12/20 LT. 2. E-02 f 12/17 12/23 8.77E 03 CU. FT. 2.7 1 0.4 E-02 LT.2. E-03 12/25 LT. 1. E 12/23 12/30 1.00E 04 CU. FT. 3.2 1 0.4 E-02 3.6 1 1.8 E-03 0I/01 LT. 1. E-02 I

. _ . __ -. . _ _ . _ . .~ - .. ~_ . m . . - . _ . _._ . _ _. _.,m__ , -.

1 L

l1 NNm4 PUBEJC POWER DISTRICT i COOPER NUCLEAR STATION EXPOSURE PATHWAY - AIRBORNE AIR PARTICUIEIE & CHARCOAL FILTERS *

, STATION NUMBER 05

, STAT 10N 05 - 3.5 MI.102 DEG. IND. ?

l COIL _ TIME AP FILTER AP FIL'IER MID-COUNT CHARCOAL FIL*lER

, START STOP GROSS BETA GROSS ALIHA TIME I-131 DATE DATE VOLUME UNITS (PCI/CU.M.) (PCI/CU.M.) DATE TIME (PCI/CU. M.)

e 01/02 01/09 1.03E 04 CU. FT. 2.1 1 0.3 E-02 1.711.3 E-03 01/13 LT. 1. E-02 01/09 01/16' 9.82E 03 CU. FT. 2.3 1 0.3 E-02 1.9 i 1.3 E-03 01/18 LT. 1. E-02 01/16 01/23 1.00E 04 CU. FT. 3.1 1 0.4 E-02 3.0 i 1.7 E-03 '01/25 LT. 1. .E-02 01/23 01/30 1.01E 04 CU. FT. 2.0 1 0.3 E-02 1.4 i 1.1 E-03 02/01 LT. 1. E-02 '

01/30 02/06 9.96E 03 CU. FT. 4.1 1 0.4 E-02 2.7 1 1.4 E-03 02/08 L T. - 1. E-02 ;

02/06 02/13 1.01E 04 CU. FT. 1.7 i 0.3 E-02 2.0 i 1.4 E-03 02/15 LT. 1. E-02 02/13 02/20 1. ole 04 CU. FT. 1.9 i 0.3 E-02 LT. 0.9 E-03 02/23 LT. 1. E-02 C2/20 02/27 1.02E 04 CU. FT. 2.2 i 0.3 E.02 2.5 i 1.4 E-03 02/29 LT. 1. E-02 02/27 03/05 1.01E 04 CU. FT. 2.1 1 0.3 -E.02 2.1 i 1.2 E-03 03/08 L T. 1. E-02'

-C3/05 03/12 1.00E 04 CU. FT. 2.0 1 0.3 E-02 LT.2. E-03 03/14 LT. 1. E-02 c3/12 03/19 1.01E 04 CU. FT. 1.8 i 0.3 E-02 3.5 i 1.5 E-03 03/22 LT. . 1. E-02 C3/19 03/26- 1.02E 04 CU. FT. 1.3 2 0.3 E.02 LT.2. E-03 03/28 L T. 1. E-02 03/26 04/02 1.01E 04 CU. FT. l.9 1 0.3 E-02 LT.2. E-03 04/04 LT. 1. E-02 !

04/02 04/09 1. ole 04 CU. Fr. 1.8 1 0.3 E-02 3.0 i 1.5 E-03 04/13 LT. 1. E-02 ;

04/09 04/16 9.94E 03 CU. FT. 1.2 i O.3 E-02 2.5 i 1.4 E-03 04/19 LT. 2. E-02 y 04/16 04/23 1.01E 04 CU. FT. 1.1 i O.3 E-02 1.7 i 1.3 E-03 04/26 L T. 1. E-02 i

04/23 04/30 1.02E 04 CU. FT. 1.6 i 0.3 E-02 3.7 i 1.6 - E-03 05/02 LT. 1. E-02 04/30 05/07 1.00E 04 CU. FT. 1.8 i 0.3 E-02 2.0 i 1.3 E-03 05/09 LT. 1. E '

C5/07 05/14 1.01E 04 CU. FT. 1.3 1 0.3 E.02 1.4 i 1.1 E-03 05/21 LT. 2. E-02 C5/14 05/21 9.91E 03 CU. FT. 1.9 i 0.3 E-02 LT.2. E-03 05/23 LT. 1. E-02

' C5/21 05/28 1.02E 04 CU. FT. 1.3 1 0.3 E-02 LT.2. E-03 05/30 LT. 2. E-02 C5/28 06/04 1.02E 04 CU. FT. 1.5 1 0.3 E.02 1.8 i 1.3 E-03 06/06 LT. 1. E-02 06/04 06/11 9.98 E 03 CU. FT. .1.9 i 0.3 E-02 5.0 i 1.9 E-03 06/13 LT. 1. E-02 06/11 06/18 - 9.97E 03 CU. FT. 2.1 i 0.3 E-02 2.3 i 1.4 E-03 06/20 LT. 1. E-02 06/18 06/25 1.01E 04 CU. FT. 1.8 i 0.3 E-02 LT.2. E-03 06/27 LT. 2. E 06/25 07/02 9.99E 03 CU. FT. 2.1 1 0.3 E-02 2.7 11.4 E-03 07/04 LT. 2. E-02 i 07/02 07/09 1.01E 04 CU. FT. 2.4 1 0.3 E-02 2.4 11.6 E-03 07/11 LT. 2. E-02 i C7/09 07/16 1.03E 04 CU. FT. 1.9 1 0.3 E-02 3.3 11.5 E-03 07/19 L T. 1.-E-02 9.73E 03 l 07/16 07/23 CU. FT. 1.6 1 0.3 E-02 1.9 11.4 E-03 07/25 LT. 1. E-02. 6 C7/23 07/30 1. ole 04 CU. FT. 1.4 -1 0.3 E-02 LT. 2. E-03 08/01 LT. 9. E-03 !

G7/30 08/06 1.01E 04 CU. FT. 1.8 i 0.3 E-02 LT. 1. E-03 08/09 LT. 1. E-02 08/06 08/13- 1. ole 04 CU. FT. 1.9 i 0.3 E-02 LT.2. E-03 08/15 LT. 1. E-02 i

.08/13 08/20 1.01E 04 CU. FT. 2.0 i 0.3 E-02 2.6 i 1.4 E-03 08/22 LT. 2. E-02 08/20 08/27 1.00E 04 CU. FT. 2.0 1 0.3 E-02 3.2 i 1.5 E-03 08/29 LT. 2.- E-02 08/27 09/03 1.02E 04 CU. FT. 4.3 1 0.4 E-02 2.1 1 1.5 E-03 09/05 LT. 1. E-02 i.

-l I

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(?

NEBRASKA PUBLIC POWER DISTR 9CT COOPER NUCLEAR STATION :

i EXPOSURE PATHWAY - AIRBORNE AIR PARI 1CUIATE & CHARCOAL FIL"IERS STATION NUMBER 05 ,

q STA110N 05 - 3.5 MI.102 DEG. IND. '

.t Coll TIME AP FILTER AP FILTER MID-COUNT CHARCOAL F1L'IER START STOP GROSS BETA GROSS ALPHA TIME I-131 DA1E DATE VOLUME UNITS (PCl/CU.M.) (PCI/CU.M.) ' DATE TIME (PC1/CU. M.) ;

09/03 09/10 1.00E 04 CU. FT. 3.410.4 E-02 2.1 i 1.2 E-03 09/12 LT. 1. E-02 09/10 09/17 1.00E 04 CU. FT. 2.2 1 0.3 E-02 2.3 i 1.5 E-03 09/19 LT. ' l.-E-02 09/17 09/24 1.01E 04 2.0 1 0.3 E-02 E-03 LT. 1. E-02 CU. FT. LT.2. 09/26 09/24 10/01 1.00E 04 CU. FT. 2.1 1 0.3 E-02 1.6 i 1.2 E-03 10/03 LT. 2. E-02 10/01 10/08 Sample Not Collected 10/08 10/15 7.23E 03 CU. Fr. 2.7 1 0.4 E-02 2.6 1 2.0 E-03 10/17 LT. 2. E-02 10/15 10/22- 1.02E 04 CU. FT. 2.2 i 0.3 E-02 2.1 i 1.2 E-03 10/24 L T. 1. E-02 10/22 10/29 1.00E 04 CU.FT. 1.9 i 0.3 E-02 LT.2. E-03 10/31 LT. 1. E-02 10/29 11/05 1. ole 04 CU.FT. 2.1 1 0.3 E-02 1.0 1 0.9 E-03 11/07 LT. 1. E-02 :

11/05 11/12 1.01E 04 CU. FT. 1.7 1 0.3 E-02 2.6 i 1.3 E-03 1I/15 LT. 1. E-02 11/12 11/19 1.01E 04 CU. FT. 2.2 i 0.3 E-02 2.7 i 1.4 E-03 I1/21 LT. 1. E-02 1I/19 1I/26 1.01E 04 CU. FT. 2.7 1 0.3 E-02 2.4 i 1.4 E-03 11/28 LT. 1. E-02 11/26 12/03 1.01E 04 CU. FT. 2.7 i 0.3 E-02 9.2 i 8.7 E-04 12/05 L T. 9. E-03

!E 12/03 12/10 1.01E 04 CU. FT. 1.6 i 0.3 E-02 2.1 i 1.3 E-03 12/12 . LT. 1. E-02

!#- 12/10 12/17 1.01E 04 CU. FT. 3.1 i O.4 E-02 3.3 11.7. E-03 12/20- LT. 1. E-02 12/17 12/23 8.71E 03 CU. FT. 2.7 1 0.4 E-02 2.6 i 1.9 E-03 12/25 LT. 9. E-03 i 12/23 12/30 1.00E 04 CU. FT. 4.2 1 0.4 E-02 4.3 i 1.9 E-03 01/01 LT. 8. E-03 1

1 t

f i

-l I

1

NESRASEA PUSEJC FOWER DISTRICT .

COOPER NUCLEAR STA110N EXPOSURE PA'IWWAY - AIRBORNE <

AIR PARTICUtATE & CHARCOAL FIL'IERS STA110N NUMBER 06 STAT 10N 06 - 3.0 Mt.165 DEG. IND.

7 COfL TIME AP FILTER AP FIL~IER MID-COUN"r CHARCOAL FILTER l

' START STOP GROSS BE. TA GROSS ALPHA - TIME I-131 a DA1E DATE VOLUME UNITS (PCI/CU.M.) (PCI/CU.M.) DATE TlME (PCI/CU. M.) !

01/02 01/09~ 1.03E 04 CU. FT. 3.1 1 0.4 E-02 2.6 i 1.5 E-03 01/13 LT. 2. E-02 ;

OI/09 01/16 9.82E 03 CU. Fr. 2.I 1 0.3 E-02 2.3 i 1.4 E-03 01/18 LT. 3. E-02 '

01/16 01/23 1.00E 04 CU. FT. 3.0 1 0.4 E-02 2.1 1 1.5 . E-03 .01/25 LT. 2. E-02 '+

01/23 01/30 1. ole 04 CU. FT. 2.6 i 0.3 E-02 1.6 i 1.1 E-03 02/01 L T. 2. E-02

.01/30 02/06 9.81E 03 CU. FT. 4.4 i 0.4 E-02 1.9 i 1.2 E-03 02/06 LT. 2. ~E-02 02/06 02/13 1.00E 04 CU. FT. 2.2 1 0.3 E-02 2.9 i 1.6 E-03 02/15 LT. 2. E-02 02/13 02/20 1.01E 04 CU. FT. 1.8 1 0.3 -E-02 2.0 i 1.1 E-03 02/23 LT. 3. E.02 02/20 02/27 1.02E 04 CU. FT. 2.1 1 0.3 E.02 2 2 i 1.3 E-03 02/29 L T. 2. E-02 1

C2/27 03/05 1.00E 04 CU. FT. 2.7 i 0.3 E-02 2.1 i 1.2 E-03 03/08 LT. 2. E-02

'C3/05 03/12 ' l.00E 04 CU. FT. 2.3 1 0.3 E-02 LT.2. E.03 03/14 LT. 2. E-02 03/12 03/19 1. ole 04 CU. FT. 1.8 1 0.3 E-02 4.1 i 1.6 E-03 03/22 LT. 2. E-02 C3/19 03/26 1.02E 04 CU. FT. 1.5 1 0.3 E-02 2.0 i 1.4 E-03 03/28~ L T. 2. . E-02 53 N

C3/26 04/02 1.01E 04 CU. FT. 2.0 1 0.3 E-02 2.4 i 1.5 E-03 04/04 LT. 2. E-02 04/02 04/09 1.01E 04 CU. FT. 2.0 1 0.3 E-02 1.8 i 1.2 E-03 04/13 LT. 2. E-02 04/09 04/16 9.97E 03 CU. FT. 1.8 1 0.3 E-02 2.5 i 1.4 E-03 -04/19 LT. 3. E-02

'04/16 04/23 1.01E 04 CU. FT. 1.3 1 0.3 E-02 3.0 t 1.6 E-03 04/26 LT. 2. E-02 s

04/23 04/30 1.02E 04 CU. FT. 1.3 1 0.3 E-02 3.7 i 1.6 E-03 05/02 LT. 2. E ,

.04/30 05/07 1.00E 04 CU. FT. 1.9 i O.3 E-02 2.4 i 1.4 E-03 05/09 LT. 2. _ E-02 C5/07 05/14 1. ole 04 CU. FT. 1.5 i 0.3 E-02 1.4 i 1.1 E-03 05/16 LT. 2. E "?

-05/14 05/21 9.88E 03 CU. FT. 1.9 i 0.3 E-02 LT.2. E-03 05/33 L T. 3. E-02 C5/21 05/28 1.02E 04 CU. FT. 1.3 1 0.3 E-02 LT.2. E-03 05/30 LT. 2. E-02 ,

C5/28 06/04 1.02E 04 CU. FT. 1.410.3 E-02 1.5 i 1.3 E 06/06 LT. 3. E-02 l 06/04 06/11 9.98E 03 CU. FT. 1.9 i 0.3 E-02 3.7 i 1.7 E-03 06/13 LT. 2. ' E.02 !

06/11 06/18 9.96E 03 CU. FT. 1.9 1 0.3 E-02 1.4 i 1.2 E-03 06/20 LT. 3. E-02 ,I 06/18 06/25 1. ole 04 CU. Fr. 1.5 i 0.3 E-02 LT. 2. E-03 06/27 LT. 3. E-02 ,

06/25 07/02 9.99E 03 CU. FT. 2.0 1 0.3 E-02 2.0 11.3 E-03 07/04 LT. 2. - E-02 t G7/02 07/09 1. ole 04 CU. FT. 1.8 i 0.3 E-02 ' 2.0 11.5 E-03 07/II LT. 2. E-02 !

C7/09 07/16 1.02E 04 CU. FT. 2.0 1 0.3 E-02 2.1 11.2 E-03 07/19 LT. 3. E G7/16 07/23 9.74E 03 CU. Fr. 1.6 i O.3 E-02 1.6 11.3 E-03 07/25 L T. 2. E-02 07/23 07/30 1.0IE 04 CU. FT. 1.6 i 0.3 E-02 LT.2. E-03 08/01 LT. 2. E-02 07/30 08/06 1. ole 04 CU. FT. 1.7 i 0.3 E-02 1.7 11.3 E-03 08/09 L T. 2. E-02 1 08/06 08/13 1. ole 04 CU. FT. 2.0 1 0.3 E-02 LT.2. E-03 08/15 LT. 2. E-02 ;

08/13 08/20 1.01E 04 CU. FT. 1.9 i 0.3 E.02 LT. 1. E-03 08/22 LT. 2. E-02

08/20 08/27 1.00E 04 CU. FT. 2.2 i 0.3 E-02 - 1.4 i 1.1 E-03 08/30 LT. 2. - E.02 08/27 09/03 1.02E 04 CU. FT. 4.0 1 0.4 E-02 1.8 1 1.4 E-03 09/05 LT. 2. ~ E.02 i

-t

~-

s*

- r l

NEBRASEA PUBUC PO4FER DISTRICT COOPER NUCLEAR STATION EXPOSURE PATHWAY - AIRBORNE AIR PARTICUIEIE & CHARCOAL MLTERS STATION NUMBER 06 STATION 06 .3.0 MI.165 DEC'. IND.

COtt TIME AP ML'IER AP MLTER MID-COUNT CHARCOAL ML'IER .

START STOP CROSS BETA CROSS ALPHA TIME l-131

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

09/03 09/10 1.00E 04 CU. FT. 3.1 i 0.4 E-02 3.2 i 1.4 E-03 09/12 L T. 2.- E-02 09/10 09/17- 1.00E 04 CU. FT. 1.8 i 0.3 E-02 2.0 i 1.4 E 09/19 LT. 2. E-02.

09/17 09/24 Sample Not Collected 09/26 L T. - 2. E.02

09/24 10/01 1.00E 04 CU. FT. 1.5 1 0.3 E.02 LT. 1. E-03 10/03 LT. 2. E-02' 10/01 10/08 1.03E 04 CU. FI'. 2.8 1 0.3 E-02 3.6 i 1.5 E-03 10/11 L T. 2. E-02

-10/08 10/15 9.87E 03 CU.Fr. 3.0 1 0.4 E-02 LT. 2. E-03 10/17 LT. 2. E-02 '

10/15 10/22 1.02E 04 CU. FT. 2.2 i 0.3 E-02 3.4 i 1.5 E-03 10/24 LT. 1. 'E-02 10/22 10/29 9.92E 03 CU. FT. 1.9 i 0.3 'E-02 LT.2. E-03 10/31 LT. 1. E-02 i 10/29 11/05 1.01E 04 CU. FT. 2.6 i 0.3 E-02 1.8 i 1.1 E.03 11/07 LT. 2.. E-02 11/05 11/12 9.99E 03 CU. FT. 2.I i 0.3 E-02 3.0 i 1.4 E-03 11/15 LT. 2. E-02 11/12 11/19 1. ole 04 CU. FT. 3.2 1 0.4 E-02 2.3 i 1.3 E-03 11/21 LT. 2. ' ~ E-02 1I/19 11/26 1.01E 04 CU. FT. 3.2 1 0.4 E-02 3.4 i 1.6 E-03 11/28 LT. 2. E.02 11/26 12/03 1.01E 04 CU. FT. 3.2 i 0.4 E-02. 1.8 1 1.1 E-03 12/05 LT. 1. ,E.02 '!

12/03 12/10 1.01E 04 CU. FT. 2.0 1 0.3 E-02 1.4 i 1.1 E-03 12/12 LT. 2. E.02 12/10 12/17 1.01E 04 CU. FT. 3.7 1 0.4 E-02 3.0 t 1.6 E-03 .12/20 LT. 2. E.02 .

~

12/17 12/23 8.77E 03 CU. FT. 3.8 i 0.4 E-02 3.1 i 1.9 E-03 12/25 L T.. 1. E-02

$ 12/23 12/30 1.00E 04 CU. FT. 4.7 i 0.4 E-02 4.4 i 1.9 E-03 01/01 - LT. 1. E-02

___________ _________ _ =- . ,- . . , - .,. _ + = - . - - _ --. , . - - - , _ - . . . .m_ _ _ _ -m__.___m...._ _ _ . _ ___

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

i NEBRASEA PUBIJC POWER DISTRICT

COOPER NUCLEAR STATION EXPOSURE PATHWAY . AIRBORNE AIR PARI 1CULNIE & CHARCOAL F1LTERS STATION NUMBER 07 STATION 07 - 2.5 ML 230 DEC'. IND.

OOfL TIME AP FILTER AP FIL'IER MID-COUffT CHARCOAL FIL1ER START STOP GROSS BETA GROSS AITHA TIME - 1-131 DATE DATE VOLUME UNITS (PCI/CU.M.) (PCl/CU.M.) DATE TIME - (PCI/CU. M.)

01/02 01/09 9.07E 03 CU. FT. 3.1 i O.4 E-02 2.7 i 1.6 E-03 01/13 L T. - 3. E-02 01/09 01/16 9.96E 03 CU. FT. 2.7 i O.4 E-02 2.4 i 1.4 E-03 01/18 LT. 2. E-02 01/16 01/23 1.00E 04 CU. FT. 3.5 1 0.4 E-02 3.9 i 1.8 E-03 01/25 LT. 2. E 01/23 01/30 1.02E 04 CU. FT. 2.0 1 0.3 E-02 2.1 i 1.2 E-03 02/O1 L*. . 2. E-02 01/30 02/06 9.98E 03 CU. FT. 3.6 1 0.4 E-02 3.7 i 1.5 E-03 02/08 LT. 2. E-02 02/06 02/13 1.01E 04 CU. FT. 2.0 1 0.3 E-02 LT.2. E-03 02/15 - LT. 2.- E-02 02/13 02/20 1.01E 04 CU. FT. 1.7 1 0.3 E-02 1.2 1 0.9 E-03 02/23 LT. 3. E-02 02/20 02/27 1.01E 04 CU. FT. 2.1 1 0.3 E-02 3.8 i 1.6 E-03 02/29 LT. 2. . E-02 '

02/27 03/05- 1.0IE 04 CU.Fr. 2.2 1 0.3 E-02 2.6 i 1.3 E-03 03/08 LT. 2. E-02 7 i

C3/05 03/12 1.00E 04 CU.Fr. 1.9 i 0.3 E-02 4.2 i 2.0 E.03 03/14 LT. 2. E.02

, 03/12 03/19 1.01E 04 CU. FT. 1.6 i 0.3 E-02 2.6 i 1.3 E.03 03/22 LT, 2- E.02 03/19 03/26. 1.0lE 04 CU. FT. 1.0 1 0.2 E-02 1.6 i 1.3 E-03 03/28 LT. 2. E-02 03/26 04/02 1.01E 04 CU. FT. 1.7 i O.3 E-02 LT.2. E-03 04/04 LT. 2. E-02 04/02 04/09 9.98E 03 CU. FT. 1.6 1 0.3 E-02 3.2 i 1.5 E-03 04/13 LT. 2. .E j 04/09 04/16 1. ole 04 CU. FT. 1.2 1 0.3 E-02 LT. 1. E-03 04/19 LT. 3. E-02 !

G' 04/16 04/23 1.00E 04 CU. FT. 1.3 1 0.3 E-02 1.7 i 1.3 E.03 04/26 LT. 2. E.02 -l to 04/23 04/30 9.75E 03 CU. FT. 2.0 1 0.3 E-02 3.5 i 1.6 E-03 05/02 LT. 3. E-02

.04/30 05/07 1.01E 04 CU. FT. 1.8 1 0.3 E.02 1.8 i 1.2 E-03 05/09 LT. 2. E-02

'C5/07 05/14 1.00E 04 CU. FT. 1.5 1 0.3 E-02 2.0 i 1.3 E-03 05/16 LT. 2. E.02 C5/14 05/21 ' 9.95E 03 CU. FT. -1.3 1 0.3 E-02 LT.2. E-03 05/23 LT. 3. E.02

, C5/21 05/28 1.02E 04 CU. FT. 1.3 i O.3 E-02 LT.2. E-03 05/30 LT. 2. E-02 C5/28 06/04 1.01E 04 CU. FT. 1.4 1 0.3 E-02 LT. 1. E-03 06/06 LT. 3. E-02 06/04 06/11 1.00E 04 CU. FT. 1.710.3- E.02 1.6 i 1.3 E-03 06/13 LT. 3. E-02 06/11 06/18 9.96E 03 CU. FT. 1.9 i 0.3 E-02 3.9 i 1.7 E-03 06/20 L T. 3. E-02

, 06/18 06/25 1.0 1 E 04 CU. FT. 2.3 1 0.3 E-02 LT.2. E-03 06/27 LT. 3. E-02 06/25 07/02 1.01E 04 CU. FT. 2.0 1 0.3 E-02 1.7 11.2 E-03 07/04 L T. 2. E-02 '

G7/02 07/09 1.02E 04 CU. FT. 2.0 1 0.3 E-02 LT.2. E-03 07/11 LT. 2. E-02 G7/09 07/16 1.00E 04 CU. FT. 2.3 1 0.3 E-02 3.6 11.5 E-03 07/19 LT. 3. E-02

'67/16 07/23 9.97E 03 CU. FT. 1.7 i 0.3 E-02 1.2 11.1 E-03 07/25 LT. 2. E-02 '

07/23 07/30 1. ole 04 CU. FT. 2.1 1 0.3 E-02 LT. 2. E-03 08/01 LT. 2. E-02 07/30 08/06 9.29E 03 CU. FT. 2.3 1 0.3 E-02 2.3 11.5 E-03 08/09 LT. 3. E.02 08/06 06/13 1.01E 04 CU. FT. 1.7 1 0.3 E-02 LT 2. E-03 08/15 LT. 2. E-02 08/13 08/20 1.01 E 04 CU. FT. 2.1 i 0.3 E-02 1.4 i 1.2 E-03 08/22 LT. 2. E-02 08/20 08/27 9.89E 03 CU. FT. 2.2 1 0.3 ~ .E.02 1.9 i 1.2 . E-03 08/30 LT. 2. E-02

NEBRASEA PUBIJC POWER DISTRICT COC'ER NUCLEAR STA110N EXPOSURE PAT 1{WAY - AIRBORNE -

AIR PART1CUlATE & CHARCOAL F1LTERS STATION NUMBER 07 STA110N 07 - 2.5 MI. 230 DEG. IND.

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

08/27 09/03 1.02E 04 CU. FT. 3.5 1 0.4 E-02 4.2 i 1.8 E-03 09/05 LT. 2. E-02 09/03 09/10 9.98E 03 CU. FT. 4.4 1 0.4 E-02 3.5 i 1.5 E-03 09/12 L T. 2. E-02 09/10 09/17 1.00E 04 CU. FT. 2.2 1 0.3 E-02 2.1 1 1.4 E-03 09/19 L T. 2. E-02 09/17 09/24 9.98E 03 CU. FT. 1.9 i 0.3 E-02 LT.2. E-03 09/26 LT. 2. E-02 09/24 10/01 1.01E 04 CU. FT. 1.9 i 0.3 E-02 LT. 1. E-03 10/03 LT. 2. E 02 10/01 10/08 1.02E 04 CU. FT. 1.1 i O.2 E-02 9.8 t 9.3 E-04 10/11 LT. 2. E-02 10/08 10/15 1.00E 04 CU. Fr. 1.4 1 0.3 E-02 LT.2. E-03 10/17 LT. 2. E-02 10/15 10/22 1.01E 04 CU. FT. 1.9 i 0.3 E-02 1.6 i 1.1 F.-03 10/24 LT. 1. E-02 10/22 10/29 Sample Not Collected 10/31 L T. 1. E-02 10/29 11/05*

11/05 11/12 1.01E 04 CU. FT. 1.7 1 0.3 E.02 2.4 1 1.3 E-03 11/15 LT. 2. E-02 11/12 11/19 1.01E 04 CU. FT. 2.110.3 E-02 2.0-11.2 E-03 11/21 LT. 2. E-02 11/19 11/26 1.01E 04 CU. FT. 2.8 i 0.3 E-02 2.6 i 1.4 E-03 11/28 LT. 2. E-02 8 11/26 12/03 1. ole 04 CU. FT. 2.9 i 0.3 E-02 1.3 i 1.0 E-03 12/05 LT. 1. E-02 12/03 12/10 1.01E 04 CU. FT. 1.9 i 0.3 E-02 1.7 i 1.2 E-03 12/12 LT. 2. E-02 12/10 12/17 1. ole 04 CU. FT. 3.1 1 0.4 E.02 3.5 i 1.7 E-03 12/20 LT. 2. E-02 12/17 12/23 8.77E 03 CU. FT. 2.9 i 0.4 E-02 2.9 i 1.9 E-03 12/25 LT. 1. E-02 12/23 12/30 9.99E 03 CU. Fr. 3.9 i 0.4 E-02 3.9 i 1.8 E-03 01/01 LT. 1. E-02 "Ihe air particulate filter for station 07 had a very light deposit.

l Nmm4 PUCLIC POWER DISTRICT COOPER ' UCLEAR STATION EXPOSURE PATHWAY - AIRBORNE 1

AIR PARTICULATE & CHARCOAL FIL1ERS STATION NUMBER 08 STKI1ON 08 - 2.5 ML 260 DEG. IND.

OOtt TIME AP FILTER AP F1LTER MID-COUPrr CHARCOAL FIL'IER START STOP - GROSS BETA GROSS ALPHA -TIM E I-131

- DATE DATE VOLUME UNITS (PCI/CU.M.) (PCl/CU.M.) DATE TIME - (PCI/CU. M.)

01/02 01/09 1.03E 04 CU. FT. 3.1 1 0.4 E-02 3.1 1 1.6 E-03 01/13 LT. 2. ' E-02 01/09 01/16 9.84E 03 CU. FT. 3.4 i 0.4 E-02 4.1 i 1.7 E-03 .01/18. LT. 3. E-02 01/16 01/23 1.01E 04 CU. FT. 2.8 i 0.4 E-02 LT.2. E-03 01/25- LT. 2. E-02 '

01/23 01/30 1.01E 04 CU. FT. 3.1 1 0.4 E-02 1.4 i 1.1 E-03 02/01 LT. 2. E-02 01/30 02/06 9.97E 03 CU. FT. 5.0 1 0.4 E-02 3.3 i 1.5 E-03 02/08 LT. 2. - E-02 i 02/06 02/13 1.01 E 04 CU. FT. 2.2 1 0.3 E-02 LT.2. E-03 02/15 L T. 2. E-02 02/13 02/20 1. ole 04 CU. FT. 2.0 1 0.3 E-02 1.6 i 1.0 E-03 02/23 L T. 3. E-02 i 02/20 02/27 1.02E 04 CU. FT. 2.6 i 0.3 E-02 3.1 i 1.5 E-03 02/29 LT. 2. E-02 02/27 03/05 1.01E 04 CU. FT. 2.710.3 E-02 2.4 i 1.2 - E.03 03/08 LT. 1.' E-02 C3/05 0 9 12 1.00E 04 CU. FT. 2.7 1 0.3 E-02 5.2 1 2.1 E-03 03/14 L T. 2. E.02 C3/12 03/19 1.01E 04 CU. FT. 2.2 1 0.3 E-02 3.0 i 1.4 E-03 03/22 L T. 2. E-02 C3/19 03/26 1.01E 04 CU. FT. 1.8 1 0.3 E-02 1.9 i 1.4 E-03 03/28 L T. 2. E-02 03/26 04/02 1. ole 04- CU. FT. 2.3 1 0.3 E-02 LT. 2. E-03 04/04 LT. 2. E-02 G 04/02 04/09 1.0IE 04 CU. FT. 2.6 1 0.4 E.02 2.8 i 1.4 E-03 04/13. LT. 2. E.02 04/09 04/16 9.98E 03 CU. FT. 2.2 1 0.3 E-02 2.1 i 1.4 E.03 04/19 LT. 3. E-02 ,

.04/16 04/23 1.00E 04 CU. FT. 1.9 i 0.3 E-02 1.9 i 1.4 E-03 04/26 LT. 2. E-02 04/23 04/30 1.02E 04 CU. FT. 1.6 1 0.3 E-02 2.5 i 1.4 E-03 05/02 LT. 2. E-02 04/30 05/07. 1.00E 04 . CU. FT. 1.8 i 0.3 E-02 1.7 i 1.2 E-03 05/09 L T. 2. E-02 05/07 05/14 1.01E 04 CU. FT. 1.5 i 0.3 E-02 2.5 i 1.4 E-03 05/16 L T. 2. E-02 !

05/14 05/21 9.91E 03 CU. FT. 1.7 i O.3 E-02 1.9 i 1.5 E-03 05/23 LT. 3. E-02 ;

.05/21 05/28 1.02E 04 . CU. FT. 1.3 i 0.3 E-02 LT. 2. E-03 05/30 LT. 2. E-02

-.05/28 06/04 1. ole 04 CU. FT. 1.6 1 0.3 E-02 1.8 i 1.4 E-03 06/06 LT. 3. E-02 06/04 06/11 1.00E-O( CU. FT. 1.5 1 0.3 E-02 2.7 i 1.5 . E-03 06/13 LT. 3. E-02 .

06/I1 06/18 9.97E 0'l CU. FT. 1.8 i 0.3 E-02 2.4 i 1.4 E-03 06/20 LT. 3. E-02 06/18 06/25 1.02E C4 CU. FT. 2.3 1 0.3 E-02 LT.2. E-03 06/27- LT. 3. E.02 06/25 07/02 1. ole 04 CU. FT. 2.3 1 0.3 E-02 2.0 11.3 E.03 07/04 L T. 2. . E-02

~

I 97/02 07/09 1. ole 04 CU. FT. 2.1 1 0.3 E-02 2.3 11.6 E-03 07/11 LT. 2. E-02 C7/09 07/16 1.00E 04 CU. FT. 1.9 i 0.3 E.02 4.8 11.7 E-03 07/19 LT. 3. E-02 07/16 07/23 1.00E 04 CU. FT. 1.4 1 0.3 E-02 LT. 1. E-03 07/25 LT. 2. E'02 G7/23 07/30 1. ole 04 CU. FT. 1.6 i 0.3 E-02 LT.2. E-03 08/01 L T. 2. E-02 67/30 08/06 1. ole 04 CU. FT. 1.9 1 0.3 E-02 LT. 1. E-03 08/09 LT. 3. E-02 i i

08/06 08/13 1.01E 04 CU. FT. 2.1 1 0.3 E-02 1.8 i 1.5 E.03 08/15 LT. 2. E-02 08/13 08/20 1. ole 04 CU. FT. 2.0 1 0.3 E-02 LT. 1. E-03 08/22 LT. 2. E-02 08/20 08/27 1.00E 04 CU. FT. 2.3 1 0.3 E-02 1.9 i 1.2 E-03 08/30 L T. 2. E-02

. - - . . - - . - - .-, . . . - . . . . . . - - . _ - - - . - . - . -,s - - - ..

, .1 I

i- NEBIIASEA PUBUC PGtrER DISTRICT COOPER NUCLEAR STATION EXPOSURE PA'IIIWAY - AIRBORNE AIR PARTICULATE & CHARCOAL FIL*IERS STA110N NUMBER 08 STK110N 08 - 2.5 Mt. 260 DEG. IND.

COIL TIME . AP FIL"IER AP FILTER MID-COUNT CHARCOAL FILTER START STOP GROSS BETA GROSS ALPHA TIME I-131 DATE DATE VOLUME UNITS (PCI/CU.M.) (PCl/CU.M.) DATE TIME (PCI/CU. M.)

i. 08/27 09/03 .1.02E 04 CU. FT. 4.4 1 0.4 E-02 2.7 i 1.6 E-03' 09/05 LT. 2. E-02 09/03 09/10 9.98E 03 CU. FT. 4.6 1 0.4 E-02 3.5 i 1.5 E-03 09/12 LT. 2.- E-02 09/10 09/17 1.00E 04 CU. FT. 2.I i O.3 E-02 2.1 1 1.4 E-03 09/19- LT. 2. E-02 i

!09/17 09/24 1.02E 04 CU. FT. 1.8 i O.3 E-02 LT.2. E-03 09/26 LT. 2. E-02 09/24 10/01 1.00E 04 CU. FT. 2.3 1 0.3 E-02 1.7 i 1.3 E-03 10/03 LT. 2. E-02 10/01 10/08 1. ole 04 CU. FT. 2.4 1 0.3 E-02 2.7 1 1.4 E-03 10/11 - LT. 2. E-02 i 10/08 10/15 1.01E 04 CU. FT. 2.5 i 0.3 E-02 2.0 i 1.4 E-03 10/17 LT. 2. E-02

, 10/15 10/22 1.02E 04 CU. FT. 2.1 i 0.3 - E-02 3.0 i 1.4 E-03 10/24 LT. 1. E-02 i 10/22 10/29 9.85E 03 CU. FT. 1.8 i 0.3 E-02 LT.2. E-03 10/31 LT. 1. E-02 10/29 11/05 1.00E 04 CU. FT. 1.9 i 0.3 . E-02 1.6 i 1.1 E-03 11/07 LT. 2. E.02 i 11/05 11/12 1.01E 04 CU. Fr. 1.6 i 0.3 E-02 2.8 i 1.4 E-03 11/15 LT. 2.' E-02

- 11/12 11/19 1.01E 04 CU. FT. 2.4 1 0.3 E-02 2.1 1 1.2 E-03 11/21 LT. 2. E-02

$ 11/19 11/26 1.01E 04 CU. Fr. 2.3 1 0.3 E-02 2.3 i 1.4 E-03 11/28 LT. 2. E-02 11/26 12/03 1.01E 04 CU. FT. 2.8 1 0.3 E-02 1.8 i 1.1 E-03 . 12/05 LT. 1. E , 12/03 12/10 1. ole 04 CU. FT. 2.3 1 0.3 E-02 3.1 i 1.5 E-03 12/12 LT. 2. E-02 .

12/10 12/17 1.01E 04 CU. FT. 3.1 1 0.4 E.02 3.0 i 1.6 E-03 12/20 L T. 2. E-02 i

12/17 12/23 8.77E 03 CU. FT. 2.5 1 0.4 E-02 LT.2. E-03 12/25 L T. 1. E-02

, 12/23 12/30 9.98E 03 CU. FT. 4.3 1 0.4 E-02 4.6 11.9 E-03 01/01 LT. 1. E-02

+

i l~

1

1 NEBRASKA PUBUC POWER DISTRICT COOPER NUCLEAR STATION EXPOSURE PATHWAY - AIRBOILNE .

AIR PAR 11CUIATE & CHARCOAL FILTERS STATION NUMBER 09 STKMON 09 - 7.25 MI. 335,DEC. IND.

COLL TIME AP FILTER AP FILTER MID-COUNT CilARCOAL FILTER START STOP CROSS BETA GROSS ALPIIA TIME l-131 DATE DATE VOLUME UNITS (PCI/CU.M.) (PCI/CU.M.) DATE TIME (PCI/CU. M.)

01/02 01/09 9.51E 03 CU. FT. 3.6 1 0.4 E-02 3.0 i 1.7 E-03 01/13 LT. 2. E-02 01/09 01/16 9.83E 03 CU. FT. 2.5 i 0.3 E-02 4.2 i 1.7 E-03 01/18 LT. 3. E-02 01/16 01/23 1.01E 04 CU. FT. 3.2 i O.4 E-02 4.1 i 1.9 E-03 01/25 LT. 2. E-02 01/23 01/30 1.01E 04 CU. FT. 2.8 i 0.3 E-02 2.4 i 1.3 E-03 02/01 L T. 2. E-02 CI/30 02/06 9.97E 03 CU. FT. 5.0 1 0.4 E-02 2.5 i 1.3 E-03 02/08 LT. 2. E-02 02/06 02/13 1.01E 04 CU. FT. 2.3 1 0.3 E-02 LT.2. E-03 02/15 LT. 2. E-02 02/13 02/20 1. ole 04 CU. FT. 2.3 1 0.3 E-02 2.0 t 1.1 E-03 02/23 LT. 3. E-02 32/20 02/27 1.02E 04 CU. FT. 2.0 1 0.3 E-02 2.0 i 1.3 E-03 02/29 LT. 2. .E-02

'G2/27 03/05 1.01E 04 CU. FT. 2.9 1 0.3 E-02 2.2 1 1.2 E-03 03/08 L T. 1. E-02 C3/05 03/12 1.00E 04 CU. FT. 1.9 i 0.3 E-02 2.0 i 1.6 E-03 03/14- L T. 2. E-02 C3/12 03/19 1.01E 04 CU. FT. 1.8 1 0.3 E-02 2.6 1 1.3 E-03 03/22 LT. 2. E-02

~

C3/19 03/26 1.01E 04 CU. FT. 1.9 i 0.3 E-02 2.3 i 1.4 E-03 03/28 LT. 2. E-02 C3/26 04/02 1.01E 04 CU. FT. 0.4210.2 E-02 LT.2. E-03 04/04 LT. 2. E-02

, O 04/02 04/09 1.00E 04 CU. FT. 0.8210.25 E-02 LT. 1. E-03 04/09 04/16 1.00E 04 CU. FT.

04/13 LT. 2. E.02 1.7 0.3 E-02 1.7 i 1.3 E-03 04/19 LT. 3. E.02 04/16 04/23 1. ole 04 CU. FT. 1.6 1 0.3 E-02 2.6 i 1.5 E-03 04/26 LT. 2. E.02 04/23 04/30 1.02E 04 CU. FT. 1.4 1 0.3 E-02 1.8 i 1.2 E-03 05/02 LT. 2. E.02 04/30 05/07 1.00E 04 CU. FT. 1.9 i 0.3 E-02 2.3 i 1.3 E-03 05/09 L T. 2. E-02 05/07 05/14 1. ole 04 CU. FT. 1.4 i 0.3 E-02 2.4 i 1.3 E-03 05/16 LT. 2. E-02 05/14 05/21 9.91E 03 CU. FT. 1.610.3 E-02 2.2 i 1.6 E-03 05/23 LT. 3. E-02 C5/21 05/28 9.77E 03 CU. FT. 1.2 i O.3 E-02 LT. 2. E-03 05/30 LT. 3. E-02 c5/28 06/04 1.02E 04 CU. FT. 1.5 1 0.3 E-02 3.0 i 1.6 E-03 06/06 LT. 3. E-02 06/04 06/11 9.97E 03 CU. FT. 1.8 i 0.3 E-02 1.7 i 1.3 E-03 06/13 LT. 3. E-02 06/11 06/18 9.97E 03 CU. FT. 1.910.3 E-02 LT. 1. E-03 06/20 LT. 3. E-02 06/18 06/25 1.02E 04 CU. FT. 1.7 1 0.3 E-02 LT.2. E-03 06/27 LT. 3. E-02 06/25 07/02 1.01E 04 CU. FT. 2.0 1 0.3 E-02 1.6 11.2 E-03 07/04 LT. 2. E-02 G7/02 07/09 1.02E 04 CU. FT. 1.9 i 0.3 E-02 LT. 2. E-03 07/11 LT. 2. E.02 G7/09 07/16 1.02E 04 CU. FT. 1.9 1 0.3 E-02 1.2 11.0 E-03 07/19 LT. 3. E-02 07/16 07/23 9.78E 03 CU. FT. 1.6 1 0.3 E-02 1.8 11.3 E-03 07/25 LT. 2. E-02 07/23 07/30 1.0lE 04 CU. FT. 1.5 1 0.3 E-02 LT.2. E-03 08/01 L T. 2. E-02 G7/30 08/06 1. ole 04 CU FT. 1.5 i 0.3 E-02 LT. 1. E-03 08/09 LT. 3. E-02 '

08/06 08/13 1. ole 04 CU. FT. 1.7 i 0.3 E-02 1.8 i 1.5 E-03 08/15 L T. 2. E 08/13 08/20 1. ole 04 CU. FT. 1.7 i 0.3 E-02 1.7 i 1.3 E-03 08/22 LT. 2. E.02 08/20 08/27 1.00E 04 CU. FT. 1.8 1 0.3 E-02 1.7 i 1.1 E-03 08/30 LT. 2. E-02

NEBRASKA PUBLIC POWER DISTRICT COOPER NUCLEAR STAT 10N EXPOSURE PATHWAY - AIRBORNE AIR PART1CUIATE & CHARCOAL FILTERS STATION NUMBER 09 STAT 10N 09 - 7.25 M1. 335 DEG. IND.

COIL TIME AP FILTER AP FILTER MID-COUNT CHARCOAL F1L"IER START STOP GROSS BETA GROSS ALPHA TIME I-131 DATE DATE VOLUME UNITS (PCI/CU.M.) (PCI/CU.M.) DATE TIME (PCI/CU. M.)

08/27 09/03 1.02E 04 CU. FT. 2.8 i 0.4 E-02 3.5 i 1.7 E-03 09/05 L T. 2. E-02 09/03 09/10 9.99E 03 CU. FT. 3.9 1 0.4 E-02 1.6 i 1.1 E-03 09/12 LT. 2. E-02 09/10 09/17 1.00E 04 CU. FT. 1.9 i 0.3 E-02 3.4 i 1.7 E-03 09/19 L T. 2. E-02 09/17 09/24 1.02E 01 CU. FT. 1.7 1 0.3 E-02 2.0 i 1.5 E-03 09/26 LT. 2. E-02 09/24 10/01 1.00E 04 CU. FT. 1.6 1 0.3 E-02 LT. 1. E-03 10/03 LT. 2. E-02 10/01 10/08 Sample Not Collected 10/08 10/15 9.84E 03 CU. FT. 2.3 1 0.3 E-02 LT. 2. E-03 10/17 L T. 2. E-02 10/15 10/22 1.02E 04 CU. FT. 1.8 i O.3 E-02 1.4 i 1.1 E-03 10/24 LT. 1. E-02 10/22 10/29 9.20 E 03 CU. FT. 2.3 i 0.3 E-02 LT. 2. E-03 10/31 LT. 2. E-02 10/29 11/05 1.01E 04 CU. FT. 2.4 1 0.3 E-02 1.7 i 1.1 E-03 11/07 LT. 2. E-02 1I/05 11/12 1.01E 04 CU. FT. 1.6 1 0.3 E-02 LT. 9. E-04 11/15 LT. 2. E-02 1I/12 11/19 1.01E 04 CU. FT. 2.3 i 0.3 E-02 1.7 i 1.1 E-03 11/21 LT. 2. E-02 II/19 11/26 1.01E 04 CU. FT. 2.4 1 0.3 E-02 2.0 i 1.3 E-03 11/28 LT. 2. E-02 y' 11/26 12/03 Sample Not Collected 12/05 LT. 1. E-02 12/03 12/10 1.01E 04 CU. FT. 2.1 1 0.3 E-02 1.8 i 1.2 E-03 12/12 LT. 2. E-02 12/10 12/17 1.01E 04 CU. FT. 2.8 i 0.4 E-02 2.3 i 1.5 E-03 12/20 L T. 2. E-02 12/17 12/23 8.77E 03 CU. FT. 2.9 1 0.4 E-02 LT.2. E-03 12/25 LT. 1. E-02 12/23 12/30 9.98E 03 CU. FT. 3.4 1 0.4 E-02 3.6 1 1.8 E-03 01/01 LT. 1. E-02

NEBRASKA PUBIJC POWER DISTRICT COOPER NUCLEAR STA110N EXPOSURE PATHWAY - AIRBORNE AIR PAITIlCULATE & CIIARCOAL FIL'IERS STA110N NUMBER 10 STATION 10 - 10.0 MI.160 DEG. IND COIL TIME AP FILTER AP FILTER MID-COUNT CilARCOAL FIL'IER START STOP GROSS BETA GROSS ALPHA TIME I-131 DATE DATE VOLUME UNITS (PCI/CU.M.) (PCI/CU.M.) DATE TIME (PCI/CU. M.)

01/02 01/09 6.95E 03 CU. FT. 5.2 i O.6 E-02 3.7 i 2.2 E-03 01/13 LT. 2. E-02 01/09 01/16 9.93E 03 CU. FT. 2.1 1 0.3 E-02 2.6 i 1.4 E-03 01/18 LT. 2. E-02 C1/16 01/23 1.00E 04 CU. FT. 3.410.4 E-02 2.3 i 1.6 E-03 0I/25 LT. 1. E-02 01/23 01/30 1.02E 04 CU. FT. 2.6 1 0.3 E-02 1.6 i 1.1 E-03 02/01 LT. 1. E-02 Cl/30 02/06 9.98E 03 CU. FT. 4.4 1 0.4 E-02 3.9 1 1.6 E-03 02/08 LT. 1. E-02 C2/06 02/13 1.01E 04 CU. FT. 2.0 1 0.3 E-02 LT.2. E-03 02/15 LT. 1. E-02 02/13 02/20 1.01E 04 CU. FT. 2.2 1 0.3 E-02 1.7 i 1.1 E-03 02/23 LT. 2. E-02 C2/20 02/27 1.01E 04 CU. Fr. 2.0 1 0.3 E-02 3.7 1.6 E-03 02/29 LT. 2. E-02 C2/27 03/05 1.01E 04 CU. FT. 2.9 i O.3 E-02 2.1 1 1.2 E-03 03/08 LT. 1. E-02 03/05 03/12 1.00E 04 CU. FT. 2.2 1 0.3 E-02 2.3 i 1.7 E-03 03/14 LT. 2. E-02 C3/12 03/19 1. ole 04 CU. FT. 1.6 1 0.3 E-02 3.3 i 1.5 E-03 03/22 L T. 1. E-02 03/19 03/26 1. ole 04 CU. FT. 1.7 1 0.3 E-02 2.6 i 1.5 E-03 03/28 LT. 2. E-02 C3/26 04/02 1.01E 04 CU. FT. 2.2 1 0.3 E-02 LT.2. E-03 04/04 LT. 2. E-02 U

04/02 04/09 9.98E 03 CU. FT. 1.9 i 0.3 E-02 4.0 i 1.7 E-03 04/13 LT. 2. E-02 04/09 04/16 1. ole 04 CU. FT. 1.7 i 0.3 E-02 LT. 1. E-03 04/19 LT. 2. E-02 04/16 04/23 1.00E 04 CU. FT. 1.4 1 0.3 E-02 1.9 i 1.4 E-03 04/26 LT. 1. E-02 04/23 04/30 1. ole 04 CU. FT. 1.4 i 0.3 E-02 2.6 i 1.4 E-03 05/02 LT. 2. E-02 04/30 05/07 1. ole 04 CU. FT. 2.0 1 0.3 E-02 1.8 i 1.2 E-03 05/09 LT. 1. E-02 05/07 05/14 1. ole 04 CU. FT. 1.5 1 0.3 E-02 1.3 i 1.1 E-03 05/16 LT. 1. E-02 C5/14 05/2! 9.95E 03 CU. FT. 1.9 1 0.3 E-02 LT.2. E-03 05/23 LT. 2. E-02 05/21 05/28 1.01E 04 CU. FT. 1.3 1 0.3 E-02 LT.2. E-03 05/23 LT. 2. E-02 05/28 06/04 1.02E 04 CU. FT. 1.8 1 0.3 E-02 1.5 i 1.3 E-03 06/06 LT. 2. E-02 06/04 06/11 1.OOE 04 CU. FT. 2.8 i 1.9 E-03 LT. 1. E-03 06/13 LT. 2. E-02 06/11 06/18 9.97E 03 CU. FT. 2.3 i O.3 E-02 1.6 i 1.3 E-03 06/20 LT. 2. E-02 06/18 06/25 1.0IE 04 CU. FT. 1.8 i 0.3 E-02 LT.2. E-03 06/27 LT. 1. E-02 06/25 07/02 1. ole 04 CU. FT. 2.5 1 0.3 E-02 3.1 11.5 E-03 07/04 LT. 1. E-02 07/02 07/09 1.02E 04 CU. FT. 2.3 1 0.3 E-02 1.8 i 1.5 E-03 07/11 LT. 2. E-02 G7/09 07/16 1.01E 04 CU. FT. 1.9 i 0.3 E-02 2.4 11.3 E-03 07/19 LT. 1. E-02 07/16 07/23 9.95E 03 CU. FT. 1.4 i O.3 E-02 1.2 11.1 E-03 07/25 LT. 1. E-02 G7/23 07/30 1.01E 04 CU. FT. 2.3 1 0.3 E-02 LT.2. E-03 08/01 LT. 1. E-02 G7/30 08/06 1. ole 04 CU. FT. 2.1 1 0.3 E-02 2.4 11.5 E-03 08/09 LT. 2. E-02 08/06 08/13 9.84E 03 CU. FT. 2.2 1 0.3 E-02 2.2 11.6 E-03 08/15 LT. 1. E-02 08/13 08/20 9.65E 03 CU. FT. 2.2 1 0.3 E-02 1.8 11.3 E-03 08/22 LT. 1. E-02

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

NEIBRASEA FUBUC POWER DISTRICT COOPER NUCLEAR STATION EXPOSURE PATHWAY - AIRBORNE AIR PARTICULATE & CHARCOAL F1L'IERS STAT 10N NUMBER 10 STAT 10N 10 - 10.0 MI.160 DEG. IND

_ COtL TIME AP FILTER AP FIL'IER MID-COUffr CHARCOAL FILTER '

START STOP GROSS BETA GROSS ALPHA TIME I-131 i DATE DATE ' VOLUME UNITS (PCI/CU.M.) (PCI/CU.M.) DATE TIME (PCI/CU. M.)

08/20 08/27 1.00E 04 CU. FT. 2.5 i'3.3 E-02 2.0 11.2- E 03 08/30 LT. 1. E-02 08/27 09/03 9.79E 03 CU. FT. 5.7 1 0.5 E-02 4.2 i 1.9 E-03 09/05 LT. 2. E-02 '

09/03 09/10 9.98E 03 CU. FT. 4.5 1 0.4 E-02 2.1 i 1.2 E-03 09/12 LT. 1. E-02 09/10 09/17 1.00E 04 CU. FT. 2.4 1 0.3 E-02 2.6 i 1.5 E 09/19 LT. 1. E-02 09/17 09/24 1.01E 04 CU. FT. 2.0 i O.3 E-02 LT.2. E-03 09/26 LT. 2. E-02 09/24 10/01 1.01E 04 CU. FT. 2.4 i 0.3 E-02 1.6 i 1.2 E-03 10/03 LT. 1. E-02 10/01 10/08 1.02E 04 CU. FT. 2.8 1 0.3 E-02 2.0 i 1.2 E-03 10/I1- LT. 2. E-02 10/08 10/15 9.97E 03 CU. Fr. 2.7 1 0.3 E.02 2.0 i 1.5 E-03 10/17 LT. 2- E-C2 10/15 10/22 1.01E 04 CU. FT. LT.3. E-03 1.1 1 1.0 E-03 10/24 LT. 1. E-02 10/22 10/29 9.79E 03 CU. FT. 3.7 i 1.9 E-03 LT.2. E-03~ 10/31 LT. 1. E-02 10/29 11/05 1. ole 04 CU. FT. 8.8 1 2.4 E-03 9.2 i 8.7 E-04 11/07- LT. 2. E-02

- 11/05 11/12 1.01E 04 CU. FT. 1.3 1 0.3 E-02 2.3 i 1.3 E-03 11/15 LT. 1. E-02 g 11/12 II/19 1.01E 04 CU. FT. 2.3 1 0.3 E-02 2.1 i 1.2 E-03 11/21 LT. 2. E-02 11/19 11/26 9.97E 03 CU. FT. 2.5 1 0.3 E 02 LT.3. E-03 11/28 L T. 1. E-02 11/26 12/03 9.89E 03 CU. FT. 2.9 i 0.3 E-02 LT.9. E-04 12/05 LT. 1. E-02 12/03 12/10 1.01 E 04 CU. FT. 1.6 i O.3 E-02 1.8 i 1.2 E-03 12/12 L T. 1. E-02 12/10 12/17 1.01E 04 CU. FT. 3.1 1 0.4 E-02 3.1 i 1.7 E-03 12/20 LT. 1. E-02 12/17 12/23 8.76E 03 CU. FT. 2.6 i 0.4 E-02 2.8 i 1.9 E-03 12/25 LT. 9. E-03 12/23 12/30. 1.00E 04 CU. Fr. 3.4 i O.4 E.02 3.4 i 1.8 E-03 01/01 LT. 8. E-03

._, _ ._ _ ~ _ _ _

i

- - - - , - , . - - , - w-,s-. a +4 i 1 l

i n 9UARTERLY COMPOSITES OF AIR PARTICULATE FILTERS STATIONS 01-10 8

i l

1 i

4 s

137

i-l NEBRASEA PUBIJC POWER DISTRICT COOPER NUCLEAR STATION EXPOSURE PATHWAY - AIRBORNE COMPOSTIE AIR PARI 1CUIATE FILTERS (PCI/CU. M.)

STAT 10N NUMBER 01 STK110N 01 - 0.1 MI. 225 DEG. IND.

DATE COU.ECIED: 01/02 04/02 04/02-07/02 07/02-10/01 10/01-12/30 G."JIMA SPECTRUM ANALYSIS:

BE-7 1.2710.13 E-01 1.6610.17 E-01' l.3410.13 E-01 5.0010.75 E-02 K-40 LT.9. E-03 LT. 1. E-02 LT.8. E-03~ LT.9. E-03 MN-54 LT.5. E-04 LT.6. E-04 LT. 5. E-04 LT. 5. E-04 CO-58 LT.7. E-04 LT. 9. E-04 LT.6. E-04 LT. 7. E-04 FE-59 LT.3. E-03 LT.3. E-0.? LT. 2. E-03 LT.2. E-03 CO-60 LT. 5. E-04 LT.5. E-04 LT.5. 'E-04 LT. 6. E ZN-65 LT. 1. E-03 LT. 1. E-03 LT.9. E-04 LT. 1. E-03 ZR-95 LT.8. E-04 L T. 1. E-t :3 LT.8. E-04 LT. 8. E-04 RU- 103 LT. 1. E.03 L T. 1. E-C3 LT. 1. E-03 LT. 1. E-03 RU-106 LT.5. E-03 LT. 6. E-03 LT.4. E-03 LT.4. E-03 h I-131 LT.5. E-02 LT. 7. E-Of LT. 5. E-02 LT.7. E-02 CS-134 LT.6. E-04 LT.5. E-04 LT. 5. E-04 LT.5. E-04 CS-137 LT.6. E-04 LT. 5. E-04 LT. 5. E-04 LT.6. E-04 BA-140 LT. 1. E-02 LT. 1. E-02 LT. 1. E-02 LT. 1. E-02 CE- 141 LT.2. E-03 LT. 3. E-03 LT.2. E-03 LT.2. E-03

, CE-144 LT.3. E-03 L T. 5. E-03 LT. 3. E-03 LT.3. E-03 RA-226 LT. 1. E.02 L T. 1. E-02 LT.9. E-03 LT.8. E-03 TH-228 LT.9. E-04 L T. 1. E-03 LT.8. E-04 LT.9. E-04 l

l l

l

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

NEBRASEA PUBIJC FOWER DISTRICT COOPER NUCLEAR STATION EXIOSURE PATHWAY - AIRBORNE COMPOSITE AIR PARilCULATE FILTERS (PCI/CU. M.)

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

DATE COllECIED- 01/02-04/02 04/02-07/02 07/02-10/01 10/01-12/30 GAMMA SPECIRUM ANALYSIS:

BE-7 1.2010.12 E-al 1.4110.14 E-01 1.3210.15 E-01 9.2211.00 E-02 K.40 LT.8. E-03 LT.9. E-03 LT. 1. E-02 LT. 1. E-02 MN-54 LT. 5. E-04 LT.5. E-04 E-04 LT.7. LT.5. E-04 CO-58 LT. E. E-04 LT.6. E-04 LT.9. E-04 LT. 8. E-04 FE-59 LT.2. E-03 LT.2. E-03 LT.2. E-03 LT.2. E-03 CO-60 LT.5. E-04 LT.4. E-04 E-04 LT. 7. L T. 5. E-04.

ZN.65 LT. 1. E-03 LT. 1. E-03 E-03 LT. 2. LT. 1. E-03 ZR-95 LT.8. E-04 LT.7. E-04 E-03 LT. 1. LT.9. E-04 RU-103 LT. 1. E-03 LT. 1. E-03 E-03 LT.2. LT. 1. E-03 RU- 106 LT.4. E-03 LT.4. E-03 LT.6. E-03 LT.4. E-03 g I-131 LT. 5. E-02 LT.5. E-02 LT.7. E-02 LT. 8. E-02

CS-134 E-04 LT. 5. LT. 5. E-04 LT.7. E-04 LT.5. E-04 CS-137 LT.5. E-04 LT.6. E-04 LT.6. E-04 LT.5. E-04 BA-140 LT. 1. E-02 LT. 1. E-02 E-02 LT. 1. LT. 1. E-02 CE-141 LT. 2. E-03 LT.2. E-03 LT.3. E-03 LT.2. E.03 CE-144 LT. 3. E-03 LT.3. E-03 LT.6. E-03 LT.2. E-03 RA-226 LT.9. E-03 LT.8. E-03 LT. 1. E-02 LT.7. E-03 TH-228 LT.9. E-04 LT.8. E-04 LT. 1. E-03 LT.7. E.04 i

NEBRA.e3 PUBIJC POWER DISTRICT COOPl.R NUCLEAR STKi1ON EXPOS':M PATHWAY - AIRBORNE COMPOSTIE AIR PARTICULATE FILTERS (PCI/CU. M.)

STAT 10N NUMBER 03 STAllON 03 - 2.5 MI. 338 DEG. IND.

DATE COLIECTED: 01/02-04/02 04/02-07/02 07/02-10/01 10/01-12/30

- GAMMA SPECTRUM ANALYSIS:

BE-7 1.3410.13 E-01 1.2210.12 E-01 1.1710.12 E-01 8.2810.69 E-02 K-40 LT. 1. E-02 LT. 1. E-02 LT.2. E-02 LT. 8. E-03 MN-54 LT. 5. E-04 LT.6. E-04 LT. 5. E-04 LT.5, E-04 CO-58 LT. 8. E-04 LT.8. E-04 LT.8. E-04 LT.7. E-04 FE-59 LT. 2. E-03 LT. 3. E-03 LT.2. E-03 LT.2. E-03 .

CO-60 LT. 5. E-04 LT.5. E-04 LT.6. E-04 LT.5. E-04 ZN-65 LT. 1. E-03 LT. 1. E-03 LT. 1. E-03 LT. 1. E-03 ZR-95 LT.8. E-04 LT.8. E-04 LT.9. E-04 LT.8. E-04 RU-103 LT. 1. E-03 LT. 1. E-03 LT. 1. E-03 LT. 1. E-03 RU-lO6 LT.4. E-03 LT.5. E-03 LT. 5. E-03 LT.4. E-03 8 I-131 LT.5. E-02 LT. 5. E-02 LT. 5. E-02 LT.6. E-02 CS-134 LT.6. E-04 LT.6. E-04 LT. 5. E-04 LT. 5. E-04 CS-137 LT. 5. E-04 LT. 6. E-04 LT. 5. E-04 LT. 5. E-04 BA-140 LT. 1. E-02 LT. 1. E-02 LT. 1. E-02 LT. 1. E-02 CE-141 LT. 1. E-03 LT.2. E-03 LT.2. E-03 LT.2. E-03 CE-144 LT.2. E-03 LT.2. E-03 LT.2. E-03 LT.2. E-03 RA-226 LT.7. E-03 LT.7. E-03 LT.8. E-03 LT.7. E-03

'IN-228 LT.7. E-04 LT.7. E-04 LT.7. E-04 LT.7. E-04 l

l NEBRASEA PUBIJC FOWER DISTRICT COOPER NUCLEAR STAT 10N EXPOSURE PATIIWAY - AIRBORNE COMPOSITE AIR PART1CUIATE FIL'IERS (PCI/CU. M.)

STATION NUMBER 04 STATION 04 - 3.0 M1. 43 DEG. IND.

DATE COUICTED: 01/02 04/02 04/02-07/02 07/02-10/01 10/01-12/30 CAMMA SPECIRUM ANALYSIS:

BE-7 1.2810.13 E-01 1.4310.14 E-01 1.2710.13 E-Ol 8.6511.20 E-02 K LT.2. E-02. LT.8. E-03 E-03 LT. 8. LT.2. E-02 MN-54 LT. 6. E-04 LT.4. E-04 LT.5, E-04 LT.8. E-04 CO-58 LT. 8. E-04 LT.5. E-04 E-04 LT.7. LT. 1. E-03 FE-59 LT.2. E-03 LT.2. E-03 E-03 LT. 2. LT.3. E-03 CO-60 LT.6. E-04 LT.5. E-04 LT.5. E-04 LT.6. E-04 ZN-65 LT.2. E-03 LT. 1. E-03 LT. 1. E-03 LT.2. E-03 ZR-95 LT.9. E-04 LT.7. E-04 E-04 LT. 7. LT. 1. E-03 RU- 103 LT. 1. E-03 LT.9. E.04 E-03 LT. 1. LT.2. E-03 RU-106 LT. 5. E-03 LT.3. E-03 E-03 LT. 4. LT.6. E-03

- I-131 LT. 5. E-02 LT.4. E-02 LT.4. E-02 LT. 9. - E-02 I

8 CS-134 LT.6. E-04 LT.4. E-04 LT.5. E-04 LT.7. E-04 CS-137 LT.5. E-04 LT.5. E-04 LT.6. E-04 LT.6. E-04 BA-140 L T. 1. E-02 LT. 1. E-02 LT.8. E-03 LT.2. E-02 CE-141 LT.2. E-03 LT.2. E-03 LT.2. E-03 LT. 2. E-03 CE-144 LT. 3. E-03 LT.2. E-03 LT.3. E-03 LT.3. E-03 RA-226 LT. 8. E-03 LT.7. E-03 LT. 8. E-03 LT.9. E-03 TH-228 LT. 8. E-04 LT.6. E-04 LT.8. E-04 LT. 1. E-03

-i

NEBRASEA FUBlJC POWER DISTRICT COOPER NUCLEAR STATION EXPOSURE PATHWAY - AIRBORNE COMPOSTTE AIR PARI 1CULA'IE FIL'IERS (PCI/CU. M.)

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

DATE COLLECIED: 01/02-04/02 04/02-07/02 07/02-10/01 10/01-12/30 GAMMA SPECI' RUM ANALYSIS:

BE-7 1.1610.12 E-01 1.3010.13 E-01 1.2910.13 E-01 8.65tl.13 E-02 K-4 0 LT.7. E-03 LT.2. E-02 LT. 1. E-02 LT. 9. E-03 MN-54 LT.5. E-04 LT.7. E-04 LT 5. E-04 LT. 6. E-04 CO-58 LT.4. E-04 LT. 1. E-03 LT.7. E-04 LT.7. E-04 FE-59 LT.2. E-03 LT.3. E-03 - LT. 2. E-03 LT.2. E-03 CO-60 LT. 5. E-04 LT.6. E-04 LT.5. E-04 LT.6. E-04 ZN-65 LT. 1. E-03 LT. 1. E-03 LT. 1. E-03 LT. 1. E-03 ZR-95 LT.6. E-04 LT. 1. E-03 LT.7. E-04 LT.9. E-04 RU-103 LT. 8. E-04 LT.2. E-03 LT 1. E-03 LT. 1. E-03

, RU-106 LT.4. E-03 LT.6. E-03 LT. 4. E-03 LT 5. E-03

$ I-131 LT.4. E-02 LT.6. E-02 LT.4. E-02 LT.8. E-02 CS-134 LT.5. E-04 LT.7. E-04 LT. 5. E-04 LT.6. E-04 CS-137 LT.5. E-04 LT.6. E-04 LT. 5. E-04 LT.5. E-04 BA-140 LT.9. E-03 LT. 1. E-02 LT.9. E-03 LT.2. E-02 CE-141 LT.2. E-03 LT. 2. E-03 LT. 1. E-03 LT.3. E-03 CE-144 LT.3. E-03 LT. 3. E-03 LT.2. E-03 LT.4. E-03 RA-226 LT.8. E-03 LT.9. E-03 LT.6. E-03 LT. 1. E-02 TM-228 LT.7. E-04 LT.9. E-04 LT.6. E-04 LT. 1. E-03

_ _ _ _ _ _ . _ _ . _ _ . _ _ _ _ _ _ _ _ _ _ . . - . . . _ _ . _ . _ _ _ _ _ _ _ __ ,_ -. s _ _ _ _ _ _ ._ _ _ . _ __ _ . _ _ _ . _ _ _ _ _ _ . _ _ _ _ _ _ _ _ . _ _ _ _ _ _ _ _ _ _ _ _ _ . _

NESRASEA PtmEJC FUWER DISTRICT COOPER NUCLEAR STATION EXPOSURE PATHWAY - AIRBORNE COMPOSITE AIR PARI 1CULATE FIL'IERS ,

(PCl/CU. M.)

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

DA1E COLLECIED: 01/02-04/02 04/02-07/02 07/02-10/01 10/0l-12/30 CAMMA SPEC 1 RUM ANALYSIS:

BE 1.3410.13 E-01 1.3010.13 E-01 ' l.1810.12 E-01 9.8411.01 E-02

- K-40 LT.9. E-03 LT. 9. E-03 LT. 8. E-03 2.9010.58 E-02 ,

I MM-54 LT.4. E-04 LT.4. E-04 LT.5. E-04 LT.6. E-04 CO-58 LT.6. E-04 LT. 8. E-04 LT. 6. E-04 LT.8. E-04 FE-59 LT.2. E-03 LT.2. E-03 LT. 2- E-03 LT.3. E-03 CO-60 LT.5. E-04 LT. 4. E-04 LT.5. E-04 LT.6. E-04 ZN-65 LT. I. E-03 LT. 1. E-03 LT. 1. E-03 L T. 1. E-03 1 ZR-95 ' LT.7. E-04 LT.8. E-04 LT.7. E-04 LT. 1. E-03 i RU-103 . LT. 1. E-03 LT. 1. E-03 LT.9. E-04 LT. 1. E-03

~

RU- 106 LT. 4. E-03 LT. 5. E-03 LT.4. E-03 LT. S. E-03 I-131 LT.4. E-02 LT. 5. E-02 LT.4. E-02 LT.9. E-02 CS-134 LT.5. E-04 LT.5. E-04 LT.5. E-04 LT.6. E-04 ,

CS-137 LT.4. E-04 LT.5. E-04 LT.6. E-04 LT. 5. E-04 4 BA-140 LT. 1. E-02 LT. 1. E-02 LT. 8. E-03 LT. 1. E-02 CE-141 LT.2. E-03 LT.2. E-03 L'. 2. E-03 LT.2. E-03 l CE-144 LT.3. E-03 L T. 3.' E-03 LT.3. E-03 LT.2. E-03 RA-226 LT.8. E-03 LT.9. E-03 LT.7. E-03 LT.7. E-03 TH-228 LT.7. E-04 LT.9. E-04 LT.7. E-04 LT.7. E-04 ,

5 j

i

f NEBRASKA PUBLIC POWER DISTRICT COOPER NUCLEAR STKnON EXPOSURE PATHWAY - AIRBORNE COMPOSTIE AIR PARDCUIATE FILTERS (PCI/CU. M.)

STAT 10N NUMBER 07 STATION 07 - 2.5 MI. 230 DFG. IND.

DATE COLLECTED- 01/02-04/02 04/02-07/02 07/02-10/01 10/01-12/30 GAMMA SPECTRUM ANALYSIS:

BE-7 1.2110.13 E-01 1.4110.14 E-01 1.3110.13 E-01 7.4211.12 E-02 K-40 LT. 1. E-02 8.8414.46 E-03 LT.2. E-02 LT.9. E-03 MN-54 LT.6. E-04 LT. 5. E-04 LT.7. E-04 LT.4. E-04 CO-58 LT.8. E-04 LT.8. E.04 LT. 1. E-03 LT. 8. E-04 FE-59 LT.2. E-03 LT.3. E-03 LT. 3. E-03 LT.2. E-03 CO-60 LT. 5. E-04 LT.5. E-04 LT. 7. E.04 LT.6. E-04 ZN-65 LT. 1. E-03 LT. 1. E-03 LT.2. E-03 LT. 1. E-03 ZR-95 LT.9. E.04 LT.8. E-04 LT. 1. E-03 LT. 1. E-03 RU- 103 LT. 1. E-03 LT. 1. E-03 LT. 1. E-03 LT. 1. E-03 RU-106 LT. 5. E-03 LT.5. E-03 LT.6. E-03 LT.5. E-03

, 1-131 LT.6. E-02 LT. 5. E-02 LT.6. E-02 LT.9. E.02 ,

$ CS-134 LT.6. E-04 LT.5. E-04 LT.7. E-04 LT.6. E-04 CS-137 LT. 5. E-04 LT. 5. E-04 LT.6. E-04 LT.5. E-04 BA-140 LT. 1. E-02 LT. 1. E-02 LT. 1. E-02 LT. 1. E-02 CE-141 LT. 3. E-03 LT.2. E-03 LT. 2. E-03 LT.3. E.03 l CE-144 LT.5. E-03 LT.3. E-03 LT. 3. E-03 LT.4. E-03 RA.226 LT. 1. E-02 LT.8. E-03 LT. 9. E-03 LT. 1. E-02 TH-228 LT. 1. E-03 LT.7. E-04 LT.9. E-04 LT. 1. E-03

l NEBRASEA FUBtJC POWER DISTRICT COOPER NUCLEAR STATION EXPOSURE PA111WAY - AIRBORNE i

COMPOSITE AIR PAR 11CULATE FILTERS i (PCl/CU. M.)

t STAT 10N NUMBER 08

! STATION 08 - 2.5 M1. 260 DEG. IND.

DATE COLIECTED: 01/02-04/02 04/02-07/02 07/02-10/01 10/01-12/30 GAMMA SPECI' RUM ANALYSIS:

BE-7 1.5510.16 E-01 1.5310.15 E-01 1.4410.14 E-01 8.42t1.10 E-02 K-40 LT. 9. E-03 6.6213.82 E.03 LT. 1. E-02 LT. 1. E-02 MN-54 LT.4. E-04 LT. 5. E-04 LT.5. E-04 LT.6. E-04 CO-58 LT. 6. E-04 LT. 7. E-04 E-04 LT.7. LT.9. E-04 FE-59 LT.2. E-03 LT.2. E-03 E-03 LT.2. LT.3. E-03 CO-60 LT. 5. E-04 LT. 5. E-04 LT. 5. E-04 LT.6. E-04 ZN-65 L T. 1. E-03 LT. 1. E-03 LT. 1. E-03 E-03 LT.2.

ZR-95 LT. 7. E-04 LT.8. E-04 LT. 7. E-04 LT. 1. E-03 RU-103 LT. 1. E-03 LT. 1. E-03 LT. 1. E-03 LT. 1. E-03

- RU- 106 LT.4. E-03 LT.4. E-03 E-03 LT. 5.

LT. 5. E-03

$ I-131 LT.5. E.02 LT 5. E-02 LT.5. E-02 . LT. 8. E-02 i

CS-134 LT.4. E-04 LT. 5. E-04 LT.5. .E-04 LT.6. E-04 CS-137 LT. 7. E-04 LT. 5. E-04 LT.5. E-04 LT.5. E-04 BA-140 LT. 8. E-03 LT. 1. E-02 E-03 LT. 9. LT.2. E-02 CE-141 LT.2. E-03 LT.2. E-03 LT.2. E-03 LT.2. E-03 CE-144 LT. 3. E-03 LT.3. E-03 LT.3. E-03 LT.3. E-03 RA-226 LT.8. E-03 LT.9. E-03 LT. 1. E-02 LT.8. E-03 TH-228 LT.8. E-04 LT.9. E-04 LT.8. E-04 LT.8. E-04 t

6

l NEBRASKA PUBUC FOWER DISTRH::T COOPER NUCLEAR STKI1ON EXPOSURE PKUIWAY - AIRBORNE COMPOSITE AIR PARilCUIATE FILTERS (PCI/CU. M.)

STKDON NUMBER 09 STA~I1ON 09 - 7.25 MI. 335 DEG. IND 1

f l DATE COLIICIED: 01/02-04/02 04/02-07/02 07/02-10/01 10/01-12/30 GAMMA SPECIRUM ANALYSIS:

BE-7 1.1510.12 E-01 9.9010.99 E-02 1.1910.12 E-01 9.3911.08 E-02 K-40 LT.8. E-03 LT.6. E-03 LT. 1. E-02 LT.8. E-03 MN-54 LT. 5. E-04 LT.3. E-04 LT. 6. E-04 LT.6. E-04 CO-58 LT.6. E-04 LT.5. E-04 LT.8. E-04 LT.8. E-04 FE-59 LT.2. E-03 LT. 1. E-03 LT. 2. E-03 LT. 3. E-03

, CO-60 LT.4. E-04 LT.4. E-04 LT.5. E-04 LT.7. E-04 ZN-65 LT. 1. E-03 LT.8. E-04 LT. 1. E-03 LT.2. E-03 2R-95 LT.8. E-04 LT. 6. E-04 LT.9. E-04 LT. 1. E-03

_ RU-103 LT. 9. E-04 LT.9. E-04 LT. 1. E-03 LT. 1. E-03 8 RU-106 LT.4. E-03 LT,3. E-03 LT. 6. E-03 LT. 5. E-03 1-131 LT.4. E-02 LT.4. E-02 LT.6. E-02 LT.8. E-02 CS-134 LT.4. E-04 LT.4. E-04 LT. 6. E-04 LT.6. E-04 CS-137 LT. 5. E-04 LT.4. E-04 LT. 5. E-04 LT. 5. E-04 BA-140 LT. 1. E-02 LT.9. E-03 LT. 1. E-02 LT.2. E-02 CE-141 LT.2. E-03 LT.2. E-03 LT. 2. E-03 LT. 2. - E-03 CE-144 LT.2. E-03 LT.3. E-03 LT.3. E-03 LT. 3. E-03 RA-226 LT.7. E-03 LT.8. E-03 LT.8. E-03 LT. 8. E-03 TH-228 LT.6. E-04 LT.7. E-04 LT.7. E-04 LT. 8. E-04 i

NEBRASKA FUBIJC POWER DISTIUCT COOPER NUCLEAR STA110N EXPOSURE PATHWAY - AIRBORNE COMPOSITE AIR PARUCUIATE FIL'IERS .

(PCI/CU. M.)

STATION NUMBER 10 STA'!10N 10 - 10.0 MI.160 DEC. IND.

DATE COtlECTED: 01/02-04/02 04/02-07/02 07/02-10/01 -10/01-12/30 CAMMA SPECTRUM ANALYSIS:

C E-7 1.3910.14 E-01 1.3310.13 E-01 1.7410.17 E-01 7.4210.77 E.02 K-40 LT.2. E-02 LT.6. E-03 LT.7. E-03 LT. 8. E.03 MN-54 LT. 7. E-04 LT.5. E-04 LT.4. E-04 LT.4. E-04 CO-58 LT. 1. E-03 LT.6. E-04 LT.7. E-04 LT. 5. E-04 FE-59 LT.3. E-03 LT.2. E-03 LT.2. E-03 LT. 1. E-03 CO-60 LT.7. E-04 LT. 5. E-04 LT. 5. E-04 LT.4. E-04 ZN 65 LT.2. E-03 LT. 1. E-03 LT. 1. E-03 LT.9. E-04 ZR-95 LT. 1. E-03 LT.8. E-04 LT.8. E-04 L T.' 6. E-04 RU-103 LT.2. E-03 LT. 1. E-03 LT.9. E-04 LT.9. E.04

{ RU-106 I-131 LT. 6-LT.7.

E-03 E-02 LT.4.

LT.4.

E-03 E-02 LT.4.

LT. 5.

E-03 E-02 LT.3.

LT.6.

E-03 E.02 CS-134 LT. 7. E-04 LT.4. E-04 LT.4. E-04 LT.4. E-04 CS-137 LT. 7. E-04 LT.4. E-04 LT.5. E-04 LT.4. E-04 BA-140 LT. 1. E-02 LT. 1. E-02 LT. 1. E-02 LT. 1. E-02 CE-141 LT.3. E-03 LT. 1. E-03 LT.2. E-03 LT.2. E-03 CE-144 LT.4. E-03 LT.2. E-03 LT.4. E-03 LT.2. E-03 RA-226 LT. 1. E-02 LT.7. E.03 LT.9. E-03 LT.7. E-03 TH-228 LT. 1. E-03 LT.7. E-04 LT. 9. E-04 LT. G. E-04 i

E. FISH I

i 1

1 l

148

s NEBRASKA PUBLIC POWER DISTRICT COOPER NUCLEAR STA110N EXPOSURE PATHWAY INGES110N:

FISH (PCl/GM WE11 STAT 10N NUMBER 28 STA110N 28 - 1.8 MI.150 DEG IND DATE COLLECTED: 07/25 07/25 07/25 10/24 FISH CA'ITISH - FISH-CARP FISH-CARP QA CARP RADIOCHEMICAL ANALYSIS:

CR-B 5.5 1 0.2 E 00 4.9 i 0.2 E 00 4.6 i 0.2 E 00 5.2 1 0.2 E 00 SR-89 LT. 3. E-03 LT. 3. E-03 LT.2. E.03 LT.3. E-03 SR-90 1.5 i 0.7 E-03 5.7 1 1.2 E-03 2.1 10.5 E-03 3.1 10.8 E-03 i

GAMMA SPECTRUM ANALYSIS:

, BE-7 LT. 1. E-01 LT. 1. E-01 LT. 1. E.01 L T. 1. E-01 K-40 3.2410.32 E 00 2.9410.29 E 00 2.8110.28 E 00 2.7210.27 E 00 MN-54 LT. 1. E-02 L T. 1. E-02 LT. 1. E-02 LT. 1. E-02 CO-58 LT. 1. E-02 LT. 1. E-02 LT. 1. E-02 LT. 1. E-02 FE-59 LT. 3. E-02 LT. 2. E-02 LT.3. E-02 LT.2. E-02 CO-60 LT. 1. E-02 LT. 1. E-02 LT. 1. E-02 L T. 1. E-02 ZN-65 LT. 3. E-02 LT.3. E-02 LT.3. E-02 LT.3. E-02 ZR-95 L T. 1. E-02 LT. 1. E-02 LT. 1. E-02 LT. 1. E-02 RU- 103 L T. 1. E-02 L T. 1. E-02 LT.2. E-02 LT. 1. E-02 RU-106 L T. 1. E-0l LT. 1. E-01 LT. 1. E-01 L T. 1. E-01 I-131 LT.2. E-02 LT.2. E.02 LT. 3. E-02 LT. 2. E-02 CS-134 LT. 1. E-02. LT. 1. E-02 LT.2. E-02 LT. 1. E-02 CS-137 LT. 1. E-02 LT. 1. E-02 LT.2. E.02 LT. 1. E-02 BA-140 LT. 2. E-02 LT. 1. E-02 LT.2. E-02 LT. 1. E-02 CE-141 LT. 2. E-02 LT. 2. E-02 LT. 2. E-02 LT. 2. E-02 CE-144 LT.7. E-02 LT.8. E-02 LT.8. E-02 LT.7. E-02 RA-226 LT. 2. E-01 LT. 2. E-01 LT. 3. E-01 LT.2. E-OI TH-228 LT.2. E-02 LT.2. E-02 LT.2. E-02 LT.2. E-02

NEBRASKA PUBLIC POWER DISTRICT COOPER NUCLEAR STADON EXPOSURE PAT 11WAY - INCESRON FISil (PCI/GM WET)

STAT 10N NUMBER 35 STA110N 35 - 2.0 MI. 350 DEG. CON.

DATE COLIECTED: 07/17 07/17 10/24 10/24 QA FISH-CATFISH FISH-CARP CARP CARP RADIOCHEMICAL ANALYSIS:

CR-B 3.4 i 0.1 E 00 5.0 1 0.2 E 00 5.3 1 0.2 E 00 4.9 1 0.2 E 00 SR-89 LT.3. E-03 LT. 3. E-03 LT.3. E-03 LT.4. E-03 SR-90 8.1 1 0.9 E-03 LT. 1. E-03 LT.2. E-03 LT.3. E-03 GAMMA SPECIRUM ANALYSIS:

BE-7 LT.2. E-01 LT. 1. E-01 LT. 1. E-01 LT. 1. E-01 K.40 2.8710.29 E 00 3.5510.36 E 00 2.8410.28 E 00 3.1910.32 E 00 MN-54 LT. I. E-02 L T. 1. E-02 LT.2. E-02 L T. 1. E-02 CO-58 LT.2. E-02 L T. 1. E-02 LT.2. E-02 LT. 1. E-02 8 FE-59 LT.4. E-02 LT.3. E-02 LT.3. E-02 LT.2. E-02 CO-60 LT.2. E-02 L T. 1. E-02 LT.2. E-02 LT. 1. E.02 ZN-65 LT.4. E-02 LT.3. E-02 LT.3. E-02 LT.3. E-02 ZR-95 LT.2. E-02 LT. 1. E-02 LT.2. E-02 LT. 1. E-02 RU- 103 LT.2. E-02 LT.2. E-02 LT.2. E-02 L T. 1. E-02 RU-106 LT.2. E-01 LT. 1. E-01 LT. 1. E-01 LT. 1- E-01 1-131 LT. 6. E-02 LT. 5. E-02 LT. 3. E-02 LT. 2. E-02 CS-134 LT.2. E-02 LT. 1. E-02 LT. 2. E-02 LT. 1. E-02 CS-137 LT.2. E-02 L T. 1. E-02 LT. 2. E-02 LT. 1. E-02 BA-140 LT.4. E-02 LT. 3. E-02 LT.2. E-02 LT.2. E-02 CE-141 LT.4. E-02 LT. 2. E-02 LT.2. E-02 LT.2. E-02 CE-144 LT. 1. E-01 LT.7. E-02 LT.9. E-02 LT.9. E-02 k RA-226 LT.4. E-01 LT.2. E-01 LT. 3. E-01 LT.3. E-01 TH.228 LT.3. E-02 LT.2. E-02 LT.2. E-02 LT.2. E-02

- __ 2 _-_- _ . _ _ _ _ _ _ _

i l

E MEK - NEAREST PRODUCERS 151

i l P-ama yUMJC POWER DWTRICT i COOPER NUC1 EAR STATION l EXPOSURE PA'INWAY - INGES110N l MIIK NEAREST PRODUCER l (PCI/ LITER) i l

STATION NUMBER 61 ,

STA110N 61 - 3.5 ML 326 DEG. IND.

DATE COtJECIED: 01/02 01/02 QA 02/06 03/12 03/12 QA RADIOCHEMICAL ANALYSIS:

SR-89 LT. 8. E-01 LT.7. E-01 LT. 5. E.01 LT.5. E LT.6. E-01 SR-90 1.3 i 0.2 E 00 1.310.2 E 00 1.1 i O.1 E 00 9.6 i 1.5 E.01 1.1 i 0.2 E 00 I-131 LT.2. E-01 LT.2. E-01 LT.2. E-01 LT.2. E-01 LT.2. E-01 CA 1.7 i 0.2 E 00 1.8 i 0.2 E 00 1.7 i 0.2 E 00 1.9 i 0.2 E 00 1.9 i O.2 E 00 GAMMA SPECTRUM ANALYSIS:

BE-7 LT.3. E 01 LT.2. E 01 LT.3. E 01 LT.3. E 01 LT. 3. E 01 K-40 1.2710.13 E 03 1.2810.13 E 03 1.3110.13 E 03 1.1310.11 E 03 1.2810.13E 03 G MN.54 LT. 3. E 00 LT.3. E 00 LT.4. E 00 LT.4. E 00 LT.3. E 00 CO-58 LT.3. E 00 LT.3. E 00 LT.4. E 00 LT.4. E 00 LT.3. E 00 t

FE-59 LT.7. E 00 LT.6. E 00 LT.8. E 00 LT.8. E 00 LT.7. E 00 CO-60 LT.4. E 00 LT.3. E 00 LT.4. E 00 LT.4. E 00 LT.3. E 00 ZN-65 LT.8. E 00 LT. 7. E 00 LT.9. E 00 LT.9. E 00 LT. 8. E 00 ZR.95 LT.3. E 00 LT.3. E 00 LT.4. E 00 LT.4. E 00 LT.3. E 00

, RU-103 LT.3. E 00 LT.3. E 00 LT.4. E 00 LT.4. E 00 LT. 3. E 00 RU-106 LT.3. E 01 LT.2. E 01 LT. 3. E 01 LT.4. E 01 LT.3. E 01 1-131 LT.4. E 00 LT.4. E 00 LT.4. E 00 LT.4. E 00 LT.4. E 00 -

CS-134 LT.4. E 00 LT.3. E 00 LT.4. E 00 LT.4. E 00 LT.3. E 00 l

CS-137 LT.3. E 00 LT.3. E 00 LT.4. E 00 LT.4. E 00 LT.4. E 00 ,

l- BA-140 LT.3. E 00 LT.3. E 00 LT.4. E 00 LT.4. E 00 LT.4. E 00 l CE-141 LT.5. E 00 L'P. 6. E 00 LT.5. E 00 LT.6. E 00 LT.6. E 00 i CE-144 LT.2. E 01 LT.2. E 01 LT.2. E 01 LT.2. E 01 LT.3. E 01

! RA-226 LT.7. E 01 LT.7. E 01' LT.7. E 01 LT.7. E 01 LT.7. E 01 TH-228 LT. 5. E 00 LT.6. E 00 LT.6. E 00 LT. 6. E 00 LT.6. E 00.

- - - . _ _ - _ . _ _ _ _ _ - - . - - - - _ _ - - _ _ _ , - - , - , + - .. - .. - _ . _ . , -- - - - - _ _ _ _ - - - - - - . . - .

NEBRASKA PUBlJC POWER DISTRICT COOPER NUCLEAR STADON EXPOSURE PAT 11WAY - INGESBON MILK NEAREST PRODUCER (PCI/ LITER)

STATION NUMBER 61 STATION 61 - 3.5 MI. 326 DEG. IND.

DATE COUICIED: 04/02 05/07 06/04 06/04 QA 06/04-06/I8 RADIOCllEMICAL ANALYSIS:

SR-89 LT. 1. E 00 LT.8. E.01 LT.7. E-01 LT.7. E-01 LT. 1. E 00 SR-90 1.7 i 0.3 E 00 1.6 i O.2 E 00 1.2 1 0.2 E 00 1.8 i 0.2 E 00 1.110.2 E 00 1-131 LT. 1.

E-01 LT.2. E-01 LT.2. E.01 LT.2. E-01

CA 2.2 i O.2 E 00 2.2 i 0.2 E 00 1.9 i O.2 E 00 1.9 i 0.2 E 00 1.8 i 0.2 E 00 f

GAMMA SPECTRUM A' NALYSIS:

BE-7 LT.3. E 01 LT.3. E 01 LT.2. E 01 LT.3. E 01 ;

K-40 1.8010.I8 E 03 1.2910.I3 E 03 1.2310.12 E 03 1.3310.I3 E 03

} - MN-54 CO-58 LT.4.

LT.4.

E 00 E 00 LT.4.

LT. 3.

E 00 E 00 LT.3.

LT.3.

E 00 E 00 LT.3.

LT.3.

E 00 E 00 FE-59 LT. 8. E 00 LT.7. E 00 LT.6. E 00 LT.8. E 00 CO-60 LT.4. E 00 LT.4. E 00 LT.3. E 00 LT.4. - E 00 ZN.65 LT.9. E 00 LT.8. E 00 LT. 7. E 00 LT.8. E 00 2R-95 LT.4. E 00 LT.4. E 00 LT.3. E 00 LT.3. E 00 RU- 103 LT.4. E 00 LT.4. E 00 LT.3. E 00 LT.4. E 00 RU-106 LT.3. E 01 LT.3. E 01 LT.3. E O1 LT.3. E O1 l-131 LT. 5. E 00 LT.4. E 00 LT.4. E 00 LT.4. E 00 CS- 134 LT.4. E 00 LT.4. E 00 LT.3. E 00 LT.4. E 00 CS-137 LT.4. E 00 LT.4. E 00 LT.4. E 00 LT.4. E 00 BA-140 LT.4. E 00 LT.4. E 00 LT.3. E 00 LT.4. E 00 CE-141 LT.6. E 00 LT. 5. E 00 LT. 5. E 00 LT. 5. E 00 CE-144 LT.3. E 01 LT. 2. E 01 LT.2. E 01 LT.2. E 01 RA.226 LT. 7. E 01 LT.7. E 01 LT 6. E 01 LT.7. E 01 TH-228 LT.6. E 00 LT.6. E 00 LT.6. E 00 LT.6. E 00

NEBIIASEA PUBUC POWER DISTRICT COOPER NUCIIAR STATION EXPOSURE PATHWAY - INGES'nON MIIE NEAREST PRODUCER (PCI/ LITER)

STATION NUMBER 61 ,

STATION 61 - 3.5 M1. 326 DEG. IND.

DATE COUECIED- 06/18 07/02 07/02 QA 07/16 07/30 RADIOCHEMICAL ANALYSIS: -

SR.89 SR-90 I-131 LT. 1. E-01 LT.3. E-01 LT. 2. E-01 LT. 1. E-01 LT. 2. E-01 CA GAMMA SPECTRUM ANALYSIS:

BE-7 LT.3. E 01 LT.3. E 01 LT.3. E 01 LT.3. E 01 LT. 3. E 01 K-4 0 1.3210.13 E 03 1.1710.12 E 03 1.2810.13 E 03 1.1910.12 E 03 1.2110.12E 03

- MN-54 LT.4. E 00 LT.4. E 00 LT.4. E 00 LT.3. E 00 LT.4. E 00

'T CO-58 LT.4. E 00 LT.4. E 00 LT.4. E 00 LT.4. E 00 LT.3. E 00 FE-59 LT.8. E 00 LT.9. E 00 LT.9. E 00 LT. 8. E 00 LT.8. E 00 CO-60 LT.5. E 00 LT.4. E 00 LT.4. E 00 LT.4. E 00 LT.4. E 00

. ZN-65 LT. 1. E 01 LT. 8. E 00 LT. 9. E 00 LT. 1. E 01 LT.8. E 00 ZR-95 LT.4. E 00 LT.4. E 00 LT. 4. E 00 LT.4. E 00 LT.3. E 00 RU-103 LT.4. E 00 LT.4. E 00 LT.4. E 00 LT.4. E 00 LT. 3. E 00 RU-106 LT.4. E 01 LT.3. E 01 LT.4. E 01 LT.3. E 01 LT.3. E 01 1-131 LT.5. E 00 LT.7. E 00 LT.7. Ey LT. 5. E 00 LT.4. . E 00 CS-134 LT.4. E 00 LT.4. E 00 LT.4. E 00 LT.4. E 00 LT.4. E 00 CS-137 LT. 5. E 00 LT.4. E 00 LT.4. E 00 LT.4. E 00 LT.4. E 00 BA-140 LT.4. E 00 LT. 5. E 00 LT.6. E 00 LT.4. E 00 LT.3. E 00 CE-141 LT.6. E 00 LT.8. E 00 LT.9. E 00 LT.7. E 00 LT.6. E 00 CE-144 LT.3. E 01 LT.3. E 01 LT.4. E 01 LT.3. E 01 LT.3. E 01 RA.226 LT.9. E 01 LT.9. E 01 LT. 1. E 02 LT.9. E 01 LT. 8. E 01 TH-228 LT.8. E 00 LT.7. E 00 LT.8. E 00 LT.7. E 00 LT.7. E 00

NEBRASEA PUBlJC POWER DISTRICT COOPER NUCIIAR STA110N EXPOSURE PATHWAY - INCES110N MllJC NEAREST PRODUCER (PCI/ LITER)

STATION NUMBER 61 STA110N 61 - 3.5 MI. 326 DEG. IND.

DATE COLLECTED: 07/02-07/30 08/13 08/13 QA 08/27 08/13-08/27 RADIOCHEMICAL ANALYSIS:

SR-89 LT. 1. E 00 LT.6. E-01 SR-90 1.1 1 0.2 E 00 1.2 i O.1 E 00 1-131 LT. 1. E-01 LT. 1. E-01 LT. 1. E-01 CA 1.7 i 0.2 E 00 2.3 i 0.2 E 00 CAMMA SPECIRUM ANALYSIS:

BE-7 LT.3. E 01 LT.3. E 01 LT.3. E 01 K.40 1.2710.13 E 03 1.2510.12 E 03 1.2510.13 E 03 MN-54 LT. 3. E 00 LT.4. E 00 LT.4. E 00 g CO-58 LT. 3. E 00 LT. 3. E 00 LT.4. E 00

FE-59 LT.6. E 00 LT.8. E 00 LT.8. E 00 CO-60 LT.3. E 00 LT.4. E 00 LT.4. E 00 ZN-65 LT.7. E 00 LT.9. E 00 LT.9. E 00 ZR-95 LT.3. E 00 LT.4. E 00 LT.4. E 00 RU-lO3 LT.3. E 00 LT.4. E 00 LT.4. E 00 RU-106 LT.3. E 01 LT. 3. E 01 LT.3. E 01 I-131 LT.4. E 00 LT.4. E 00 LT.4. E 00 CS-134 LT.3. E 00 LT.4. E 00 LT.4. E 00 CS-137 LT.3. E 00 LT.4. E 00 LT.4. E 00 BA- 140 LT.3. E 00 LT.4. E 00 LT.4. E 00 CE-141 LT.5. E 00 LT. 5. E 00 LT.6. E 00 CE-144 LT.2. E 01 LT.2. E 01 LT.3. E 01 RA-226 LT.7. E 01 LT.7. E 01 LT.7. E 01 TH-228 LT.6. E 00 LT.6. E 00 LT.6. E 00

.o i

l NEBRASKA PUBUC POWER DISTRICT l COOPER NUCLEAR STATION EXPOSURE PA1TIWAY - INGES110N MILK NEAREST PRODUCER (PCI/ LITER)

STATION NUMBER 61

~ - STA'I1ON 61 - 3.5 MI. 326 DEG. IND.

DATE COLLECTED: 09/10 09/10 QA 09/24 09/10-09/24 10/08 RADIOCHEMICAL ANALYSIS:

SR-89 LT. 9. E-Ol LT. 6. E-01 SR-90 1.2 1 0.2 E 00 1.1 i 0.2 E 00 1-131 LT.2. E-01 LT.2. E-O l LT.2. E.01 LT.2. E-01 CA 2.3 i 0.2 E 00 2.310.2 E 00 GAMMA SPECI' RUM ANALYSIS:

BE-7 LT.3. E 01 LT. 3. E 01 LT.4. E 01 LT.3. E 01 K-40 1.0110.10 E 03 1.2510.13 E 03 1.1610.12 E 03 1.1810.12E 03 MN.54 LT.3. E 00 LT.3. E 00 LT.4. E 00 LT.4. E 00 I

, $ CO-58 LT.3. E 00 LT. 3. E 00 LT.4. E 00 LT.3. E 00 FE-59 LT.6. E 00 LT.6. E 00 LT.9. E 00 LT.9. E 00 i CO-60 LT.4. E 00 - LT.3. E 00 LT.4. E 00 LT.4. E 00 l - ZN-65 LT.8. E 00 LT.7. E 00 LT. 1. E 01 LT. 9. E 00 ZR-95 LT.3. E 00 LT. 3. E 00 LT.4. E 00 LT.4. E 00 RU-103 LT.3. E 00 LT. 3. E 00 LT.5. E 00 LT.4. E 00 l RU-106 LT.3. E 01 LT. 3. E 01 LT.4. E 01 LT. 3. E 01 I-131 LT.4. E 00 LT.3. E 00 LT. 5. E 00 LT. 5. E 00 CS-134 LT. 3. E 00 LT.3. E 00 LT. 5. E 00 LT.4. E 00 CS-137 LT.4. E 00 LT. 3. . E 00 LT. 5. E 00 LT. 4. E 00 BA-140 LT.4. E 00 LT. 4. E 00 LT.4. E 00 LT.5. E 00 CE-141 LT. 6. E 00 LT.4. E 00 LT.7. E 00 LT.7. E 00 CE-144 LT.2. E 01 LT. 2. E 01 LT.3. E 01 LT.3. E 01 RA-226 LT. 7. E 01 LT.6. E 01 LT.9. E 01 L T. 8.' E 01 TH-228 LT. 6. E 00 LT. 5. E 00 LT.7. E 00 LT. 7. E 00 l

NEBRASKA PUBEJC POWER DIS 11UCT COOPER NUCLEAR STATION EXPOSURE PATHWAY - INGES110N MILK NEAREST PRODUCER (PCI/ LITER)

STATION NUMBER 61 STATION 61 - 3.5 MI. 326 DEG. IND.

DATE COLLECIED: 11/05 12/03 RADIOCHEMICAL ANALYSIS:

SR-89 LT. 8. E-01 LT. 8. E-01 SR-90 2.3 1 0.2 E 00 1.8 i O.2 E 00 1-131 LT. 1. E.O1 LT. 3. E-01 CA 2.4 i O.2 E 00 2.7 1 0.3 E 00 GAMMA SPECTRUM ANALYSIS:

BE-7 LT. 3. E 01 LT. 3. E 01

- K-40 1.1210.11 E 03 1.2310.12 E 03

$ MN-54 LT. 4. E 00 LT.4. E 00 CO-58 LT. 3. E 00 LT.4. E 00 FE-59 LT. 8. E 00 LT. 9. E 00 CO-60 LT.4. E 00 LT.4. E 00 ZN-65 LT.8. E 00 LT.9. E 00 ZR-95 LT. 3. E 00 LT.4. E 00 RU.103 LT.3. E 00 LT.4. E 00 RU- 106 L T. 3. E 01 LT.3. E 01 1-131 LT. 4. E 00 L T. 5. E 00 CS-134 LT.4. E 00 LT.4. E 00 CS-137 LT.4. E 00 LT.4. E 00 BA-140 LT.4. E 00 LT. 4. ' E 00 CE-141 LT. 6. E 00 LT.6. E 00

- CE-144 LT. 2. E 01 LT. 3. E 01 RA-226 LT. 7. E 01 LT.7. E 01 TH-228 LT. 7. E 00 LT.6. E 00

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

1 G. MILE - OTHER PRODUCERS i

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158

y NEBRASKA PUBtJC POWER DISTRICT COOPER NUCLEAR STATION EXPOSURE pan {WAY - INGESTION MILK ORIER PRODUCER (PCI/ LITER)

STATION NUMBER 99 STATION 99 - 10.5 ML 189 DEG. IND.

4 DATE COLLECIED: 01/16 04/23 07/09 10/15 RADIOCHEMICAL ANALYSIS:

SR-89 LT. 1. E 00 LT.7. E.01 LT. 8. E-01 LT. 1. E 00 SR-90 1.1 1 0.2 E 00 1.2 i O.2 E ^3 2.8 i 0.2 E 00 1.6 i 0.3 E 00 1-131 LT.2. E-01 LT.2. E- 91 LT. 2. E.01 LT.2. E-01 CA (gm/ liter) 1.8 i O.2 E 00 2.1 1 0.2 E 00 1.8 1 0.2 E 00 - 2.2 1 0.2 E 00 GAMMA SPECIRUM ANALYSIS:

BE-7 LT. 3. E 01 LT.4. E 01 LT. 3. E 01 LT.3. E 01 g K-40 1.4510.14 E 03 1.3610.14 E 03 1.2010.12 E 03 1.2710.13 E 03 o MN-54 LT. 3. E 00 LT.5. E 00 LT.4. E 00 LT.4. E 00 CO-58 LT. 3. E 00 LT.5. E 00 LT.4. E 00 LT.4. E 00 FE-59 LT.6. E 00 LT. 1. E 01 LT. 9. E 00 LT.8. E 00 CO.60 LT. 3. E 00 LT.4. E 00 LT.4. E 00 LT.4. E 00 ZN-65 LT. 7. E 00 LT. 1. E 01 LT. 8. E 00 LT. 9. E 00 ZR-95 LT. 3. E 00 LT. 5. E 00 LT.4. E 00 LT.4. E 00 ,

RU-103 LT.3. E 00 LT.5. E 00 LT.4. E 00 LT.4. E 00 RU- 106 LT.2. E 01 LT.4. E 01 LT.4. E 01 LT.4. E 01 1-131 LT.4. E 00 LT. 6. E 00 LT.4. E 00 LT.5. E 00 CS-134 LT.3. E 00 LT. 5. E 00 LT.4. E 00 LT.4. E 00 CS-137 LT. 3. E 00 LT.5. E 00 LT.4. E 00 LT.4. E 00 '

BA- 140 LT. 3. E 00 LT.5. E 00 LT.4. E 00 LT.4. E 00 CE-141 LT. 5. E 00 LT. 7. E 00 LT. 6. E 00 LT.8. E 00 CE-144 LT.2. E 01 LT. 3. E 01 LT. 2. E 01 LT.4. E 01 i RA-226 LT.7. E 01 LT.9. E 01 LT. 7. E 01 LT. 1. E 02 Tli-228 LT.6. E 00 LT. 7. E 00 LT. 6. E 00 LT. 9.. E 00

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NEERASEA FUBtJC POWER DISTRICT COOPER NUCLEAR STAT 10N EXPOSURE PA1HWAY - WATERBORNE WATER - GROUND (PCI/ LITER) l STATION NUMBER 11 '

STATION 11 - 0.15 ML 225 DEG. IND.

DATE COUICTED: 02/08 04/30 07/16 10/22 !

RADIOCHEMICAL ANALYSIS:

GR-A LT.4. E 00 4.3 1 2.8 E 00 LT.4. E 00 LT.5. E 00 GR-B 7.9 i 1.7 E 00 1.1 1 0.2 E 01 7.1 i 1.6 E 00 1.010.2 E 01 L GAMMA SPECIRUM ANALYSIS:

BE-7 LT.3. E 01 LT.3. E 01 LT. 3. E 01 LT.3. E 01 K-40 LT.9. E 01 LT. 5. E 01 LT. 7. E 01 LT.9. E 01 MN-54 LT.3. E 00 LT. 3. E 00 LT.4. E 00 LT.4. E 00 CO-58 LT.3. E 00 LT.3. E 00 LT.3. E 00 L T. 4.- E 00 FE-59 LT.7. E 00 LT. 5. E 00 LT. 8. E 00 LT.8. E 00 ,

CO-60 LT.3. E 00 LT. 3. E 00 LT.4. E 00 LT.4. E 00

- ZN.65 LT. 7. E 00 LT. 6. E 00 LT.7. E 00 LT.9. E 00 i O ZR-95 LT. 3. E 00 LT. 3. E 00 LT.4. E 00 LT. 4. - E 00 ;

RU-103 LT. 3. E 00 LT.3. E CO LT.4. E 00 LT.4. E 00 ;

RU- 106 LT. 3. E 01 LT.3. E 01 LT.3. E 01 LT. 3. E 01 ;

I-131 LT.4. E 00 LT.3. E 00 LT.5. E 00 LT.4. E 00 CS-134 LT.3. E 00 LT.3. E 00 LT.4. E 00 LT.4. E 00 CS-137 LT.4. E 00 LT.4. E 00 LT.4. E 00 LT.4. E 00 BA-140 LT.4. E 00 LT.3. E 00 LT. 5. E 00 LT.5. E 00 CE-141 LT. 5. E 00 LT.5. E 00 LT 8. E 00 LT.6. E 00 [

CE-144 LT.2. E 01 LT.2. E 01 LT.4. E 01 LT.3. E 01 ,

RA-226 LT.6. E 01

LT.6. E 01 LT. 1. E 02 LT.7. E 01 l TH-228 LT.6. E 00 LT.6. E 00 LT.9. E 00 LT.7. E 00 -

i TRrl10M ANALYSIS: ,

H-3 LT. 1. E 02 LT. 1. E 02 LT. 1. E 02 LT. 1. E O2 (l _ ._ _ . _ _ _ _ _ _ _ _ _ _ _ _ _ - . - - - . - _ _- . -,_ .- - . _ _ - .-- - - - . . -. . . . . - .-- -. . - .- -. -_- . - .

NEBRASKA PUBtJC F0WER DISTRICT COOPER NUCLEAR STAT 10N EXPOSURE PA111WAY - WATERBORNE WATER - GROUND (PCI/ LITER)

STAT 10N NUMBER 47 STATION 47 - 25.8 MI.154 DEG. IND.

DATE COLLECIED: 02/08 04/30 07/16 10/22 RADIOCHEMICAL ANALYSIS:

CR-A LT.3. E 00 2.3 1 2.2 E 00 LT.4. E 00 LT. 5. E 00 GR-B 4.4 i 1.2 E 00 6.9 i 1.5 E 00 6.6 i 1.6 E 00 1.110.2 E 01 GAMMA SPECIRUM ANALYSIS:

BE-7 LT.2. E 01 LT.3. E 01 LT.3. E 01 LT.4. E 01 K-4 0 LT.4. E 01 LT.9. E 01 LT. 5. E 01 LT. 1. E 02 MN-54 LT.2. E 00 LT.3. E 00 LT. 3. E 00 LT.4. E 00 CO-58 LT. 2. E 00 LT. 3. E 00 LT.3. E 00 LT.4. E 00 FE-59 LT. 5. E 00 LT.7. E 00 LT.6. E 00 LT.9. E 00

{ CO-60 LT.3. E 00 LT.3. E 00 LT. 3. E 00 LT.4. E 00 ZN-65 LT. 5. E 00 LT.7. E 00 LT. 7. E 00 LT. 1. E 01 ZR-95 LT.3. E 00 LT.4. E 00 LT. 3. E 00 LT.5. E 00 RU-103 LT.3. E 00 LT.4. E 00 LT. 3. E 00 LT.5. E 00 RU-106 LT. 2. E 01 LT.3. E 01 LT. 3. E 01 LT.4. E 01 I-131 LT.3. E 00 LT.4. E 00 LT.4. E 00 LT. 5. E 00 CS-134 LT.3. E 00 LT.4. E 00 LT. 3. E 00 LT.5. E 00 CS-137 LT.4. E 00 LT.4. E 00 LT.4. E 00 LT.5. E 00 BA-140 LT.3. E 00 LT.4. E 00 LT.4. E 00 LT.5. E 00 CE-141 LT.5. E 00 LT.5. E 00 LT.6. E 00 LT.7. E 00 CE-144 LT.2. E 01 LT.2. E 01 LT.2. E 01 LT. 3. E 01 RA-226 LT.6. E 01

LT.7. E 01 LT.7. E 01 LT.8. E 01 TH.228 LT.5. E 00 LT.7. E 00 LT.7. E 00 LT. 8. E 00 TRI11UM ANALYSIS:

H-3 LT. 1. E 02 LT. 1. E 02 L T. 1. E 02 LT. 1. E 02

L RIVER WATER 1

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164

l NEERASEA PUBUC POWER DISTRICT COOPER NUCIEAR STA110N EXPOSURE PAT 11WAY - WATERBORNE I WATER - RIVER l

(PCI/I. ITER)

STATION NUMBER 12 STATION 12 - 0.1 MI. 360 DEG. CON DATE COUECTED: 0I/02 02/06* 03/12 04/02 05/07 RADIOCHEMICAL ANALYSIS:

CR-89 LT. 5. E-01 LT. 5. E.01 LT. 1. E 00 LT. 1. E 00 LT. 1. E 00

' R-90 4 LT.2. E-01 LT.2. E-01 LT. 5. E-01 LT.7. E-01 LT.5. E.01 GR-A DIS LT.3. E 00 2.9 i 2.3 E 00 LT.3. E 00 3.0 i 2.4 E 00 3.512.3 E 00 GR-A SUS 7.8 i 5.5 E-01 LT. 6. E-01 LT.8. E.01 2.9 i 2.0 E 00 9.4 i 6.7 E.01 .

CR.B DES 1.1 1 0.2 E 01 1.3 1 0.2 E 01 1.3 1 0.2 E 01 1.0 1 0.2 E 01 1.110.2 E 01 GR-B SUS 2.4 i 0.7 E 00 LT.7. E-01 4.8 i 0.9 E 00 1.5 i 0.2 E O1 3.5 i 0.8 E 00 GAMMA SPECIRUM ANALYSIS:

BE-7 LT.3. E O1 LT.3. E O1 L'. 3. E O1 LT.3. E 01 LT.3. E O1 K-40 LT. 1. E 02 LT. 1. E 02 I .T. 6. E 01 5.46i 2.73 E 01 LT.7. E 01 MN.54 LT.4. E 00 LT.4. E 00 LT.3. E 00 LT.4. E 00 LT.3. E 00 CO.58 LT. 4. E 00 LT.4. E 00 LT.3. E 00 LT.4. E 00 LT.3. E 00 FE-59 LT. 8. E 00 L r. 8. E 00 LT.6. E 00 LT.8. E 00 LT. 6. E 00 5

CO-60 LT.4. E 00 LT.4. E 00 LT.4. E 00 LT.4. E 00 LT.3. E 00 ZN.65 LT.8. E 00 LT.9. E 00 LT.6. E 00 LT. 8. E 00 LT. 6. E 00 ZR.95 LT.4. E 00 LT.4. E 00 LT.3. E 00 LT.4. E 00 LT.3. E 00 RU- 103 LT.4. E 00 LT.4. E 00 LT.3. E 00 LT.4. E 00 LT.3. E 00 RU-106 LT.4. E 01 LT.4. E 01 LT.3. E 01 LT.3. E 01 LT.3. E 01 1131 LT.4. E 00 LT. 5. E 00 LT.4. E 00 LT.6. E 00 LT.4. E 00 CS-134 LT.4. E 00 LT.4. E 00 LT.4. E 00 LT.4. E 00 LT.3. E 00 CS-137 LT.4. E 00 LT.4. E 00 LT.3. E 00 LT.4. E 00 LT.3. E 00 BA-140 LT.4. E 00 LT.5. E 00 LT.4. E 00 LT. 6. E 00 LT.3. E 00 CE-141 LT. 5. E 00 LT.5. E 00 LT.7. E 00 LT.6. E 00 LT.5. E 00 CE-144 LT.2. E 01 LT.2. E 01 LT.3. E 01 LT. 3. E 01 LT.2. E 01 RA.226 LT.7. E 01 LT.7. E 01 LT. 8. E 01 LT.7. E 01 LT.6. E 01 TH.228 LT.6. E 00 LT. 6. E 00 LT.7. E 00 LT.6. E 00 LT. 5. E 00 TRIT 10M ANALYSIS: 01/02-03/12 04/02-06/04 H-3 LT. 1. E 02 LT. 1. E 02

Sample collected from Stauon 35 because of ky river condluone.

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NEEgtAAKA FUBtJC FOWER DMmUCT COOPER NUCLEAR STAT 10N EXPOSURE PAT 1tWAY - WATERDOP.NE WATER - RIVER (PCI/tJTER)

STATION NUMBER 12 STATION 12 - 0.1 MI. 360 DEG. CON DATE COLdC'IED: 11/05 12/03 RADIOCHEMICAL ANALYSIS:

SR-89 LT. 1. E 00 LT. 1. E 00 ER-90 LT. 3. E-01 LT. 7. E-01 GR-A DIS LT.3. E 00 LT.2. E 00 GR-A SUS 1.3 i O.8 E 00 6.5 i 4.1 E-01 GR-B DIS 1.1 1 0.2 E 01 8.6 i 1.7 E 00 GR-B SUS 3.4 i 0.9 E 00 1.8 1 0.7 E 00 GAMMA SPECTRUM ANALYSIS:

BE-7 LT.3. E 01 LT.4. E 01 K-40 LT.9. E 01 LT. 1. E 02 MN-54 LT.3. E 00 LT.4. E 00 CO-58 LT.3. E 00 LT.4. E 00 g FE-59 LT.7. E 00 LT.9. E 00 N CO-60 E 00 LT.3. LT.4. E 00 ZN-65 LT.8. E 00 LT. 1. E 01 ZR-95 LT.4. E 00 LT.4. E 00 RU- 103 LT.4. E 00 LT.4. E 00 RU-106 LT.3. E 01 LT.4. E 01 1-131 LT.4. E 00 LT.6. E 00 CS-134 LT.4. E 00 LT. 5. E 00 CS-137 LT.4. E 00 LT.5. E GO BA-140 LT.4. E 00 LT. 5. E 00 CE-141 LT. 5. E 00 LT.7.. E 00 CE-144 LT.2. E 01 LT.3. E 01 RA-226 LT.7. E 01 LT.9. E 01 TH-228 LT.6. E 00 LT.7. E 00 TRIT 1UM ANALYSIS: 10/01-12/03 H-3 LT. 1. E 02

NEBHASEA PUERJC POWER DISTRICT COOPER NUCLEAR STA110N EXPOSURE PATHWAY - WKIERBORNE ,

WATER - RIVER i (PCI/IIIERI STA'110N NUMBER 28 STA"I1ON 28 - 1.8 MI.150 DEG. IND.

DA1E COUECTED: 01/02 02/06 03/12 04/02 05/07 i RADIOCHEMICAL ANALYSIS: j CR-89 LT.4. E.01 LT.9. E-01 LT.8. E-01 LT. 1. E 00 - LT. 9. E-01 .

SR-90 LT.2. E.01 LT.4. E-01 LT.3. E-01 LT. 6. E-01 LT. 3. E-01 ,

~ G R-A DIS LT.3. E 00 LT.4. E 00 LT.3. E 00 LT.3. E 00 3.6 i 2.3 E 00 GR-A SUS LT. 6. E-01 LT. 5. E-01 9.4 i 7.0 E-01 3.7 i 1.9 E 00 8.3 i 5.3 E-OI .;

GR-B DES 1.2 1 0.2 E 01 1.2 1 0.2 E 01 1.3 1 0.2 E 01 1.1 i 0.2 E O1 1.2 i 0.2 E 01 t GR-B SUS 2.3 i 0.7 E 00 LT.8. E-01 3.4 1 0.8 E 00 1.4 i 0.2 E 01 3.510.8 E 00 .

i CAMMA SPECIRUM ANALYSIS:

BE-7. LT.3. E 01 LT.2. E 01 LT.3. E 01 LT.3. E 01 LT. 3. E 01 K-40 LT.9. E 01 LT.5. E 01 LT. 6. E 01 LT.7. E 01 LT.6. E 01 i MN-54 LT.3. E 00 LT.2. E 00 LT.3. E 00 LT. 3. E 00 LT. 3. E 00 1 CO-58 LT.3. E 00 LT.3. E 00 LT.3. E 00 LT. 3. E 00 LT.3. E 00 FE-59 LT.6. E 00 LT. 5. E 00 LT.6. E 00 LT. 7. E 00 LT.6. E 00 .'

g CO-80 LT.3. E 00 LT.3. E 00 LT.3. E 00 LT.4. E 00 LT.4. E 00 ZN.65 LT.7. E 00 LT.6. E 00 LT.6. E 00 LT.8. E 00 LT.8. E 00 ZR-95 LT.3. E 00 LT.3. E 00 LT.4. E 00 LT.4. E 00 LT.3. E 09 RU- 103 LT.3. E 00 L T. 3. E 00 LT.4. E 00 LT.4. E 00 LT.4. E 00 RU-106 LT.3. E 01 LT.2. E 01 LT.3. E 01 LT.3. E 01 - LT. 3. E 01 I-131 LT.4. E 00 LT.3 E 00 LT.4. E 00 LT.5. E 00 LT. 5. E 00 ,

CS.134 LT.3. E 00 LT.3. E 00 LT.4. E 00 LT.4. E 00 LT. 3. E 00 CS-137 LT.3. E 00 LT. 3. E 00 LT.4. E 00 LT.4. E 00 LT.4. _ E 00 ,

BA-140 LT.4. E 00 LT.3. E 00 LT.4. E 00 LT.5. E 00 - LT.5. E 00 ,

CE-141 LT.5. E 00 LT.5. E 00 LT.7. E 00 LT. 6. E 00 LT. 6. E 00 CE-144 LT.2. E 01 LT.2. E 01 LT.3. E 01 LT. 3. E 01 LT.3. E 01 i RA-226 LT. 6. E 01 LT.6. E 01 LT. 1. E 02 LT.8. E 01 LT. 8. - E 01 TH-228 LT. 5. E 00 LT.5. E 00 LT.8. E 00 LT.7. E 00 LT.7. E 00 .

?

TRITIUM ANALYSIS: 01/02-03/12 . 04/02-06/04 H-3 LT. 1. E 02 LT. 1. E 02 i

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NEBRASKA PUBLIC POWER DISTRICT

,- COOPER NUCLEAR STKI1ON i EXPOSURE PKINWAY - WATERBORNE i- WATER - RI'ER (PCI/ LITER)

STATION NUMBER 28 STATION 28 - 1.8 MI.150 DEG. IND.

DATE COLLECTED- 11/05 12/03-RADIOCHEMICAL ANALYSIS:

SR-89 LT.9. E.01 L T. 1. E 00 SR-90 LT.9. E-01 LT.4. E-01 GR-A DIS LT.3. E 00 3.4 1 2.2 E 00 GR A SUS 9.8 i 6.2 E-01 7.5 1 5.0 E-01 GR-B Dis 1.0 1 0.2 E O1 9.5 i 1.7 E 00 GR-B SUS 1.6 1 0.7 E 00 2.6 1 0.8 E 00 GAMMA SPECTRUM ANALYSIS: <

BE-7 LT.4. E 01 LT. 3. E 01 K-40 LT. 1. E 02 LT. 6. E 01 MN-54 LT.4. E 00 LT.4. E 00 h CO-58 LT.4. E 00 LT.3. E 00 ,

FE-59 LT.9. E 00 LT.7. E 00 CO-60 LT.4. E 00 LT.4. E 00 ZN-65 LT. 1. E 01 LT. 8. E 00 ZR-95 LT.5. E 00 LT.4. E 00 RU- 103 LT.5. E 00 LT.4. E 00 RU-106 LT.4. E 01 LT.3. E 01 I-131 LT. 5. E 00 LT.4. E 00 CS-134 LT. 5. E 00 LT.4. E 00 CS-137 LT.5. E 00 LT.4. E 00 BA-140 LT.4. E 00 LT.4. E 00 CE-141 LT.7. E 00 LT. 7. E 00 CE-144 LT.3. E 01 LT.3. E 01 RA-226 LT. 9. E 01 LT.8. E 01 TH-228 LT.7. E 00 L T. 7. E 00 TRT11UM ANALYSIS: 10/01-12/03 H-3 LT. 1. E 02

_ _ _ . _ _ _ _ _ _ _ _ _ _ _ _ _ ___ _ _ , _ _ _ - __ m _._- __ ,__m _._ .___ . _ _

J- NWOWMassezwr mDY - RADIATION DOSE i

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l TABEE J-1 l

1996 QUARTER 1,Y REPORT NEBRASKA PUBlJC POWER DIST15CT COOPER NUCLEAR STKI1ON EXPOSURE PATHWAY - AMBIENT GAMMA RADlKI1ON: 'IID milllRoentgen/ Quarter SAMPLE STATION FIRST QUARTER SECOND QUARTER 'IHIRD QUATIER FOURTH QUARIER NUClJDE NUMBER 12/26/95-04/09/96 04/09/96 07/16/96 07/16/96-10/08/96 10/08/96-01/08/97 "ILD (Gamma) O1 22.0 i 1.4 19.4 i 0.6 17.4 i 1.0 18.0 i 0.7 02 19.3 i 1.0 17.8 i O.8 15.5 i 0.7 17.7 i 0.7 03 18.310.2 16.4 i 0.5 13.7 i 0.5 16.9 i 1.5 04 19.010.5 17.4 i 0.9 15.6 i O.9 17.8 i 0.7 05 18.7 i 1.1 18.010.8 15.610.4 17.6 i 1.6 06 19.8 i 1.3 17.7 i 0.7 15.1 i 0.9 17.7 i 0.9 07 18.3 i 1.8 17.510.8 15.8 i 0.8 17.3 i O.7 08 19.3 i 0.9 18.6 i 1.0 16.6 i 1.0 18.7 i 1.2 U 09 20.010.7 17.3 i 0.4 15.0 i 0.9 17.5 i O.9 10 19.2 i 1.2 17.510.9 15.5 i O.9 17.3 i 1.0 20 21.410.7 18.3 i O.9 16.1 i 0.7 17.9 i 1.3 44 20.5 i 0.7 20.5 i 1.2 17.8

0.9 20.6 i 1.6 56 19.310.6 17.9 i 0.8 15.9 i 1.I 18.I 1 0.7 58 19.310.6 19.0 i 1.0 15.9 i 0.7 19.311.4 59 19.7 i 1.3 18.9 i 1.1 15.8 i 0.7 18.6 i 0.9 66 21.710.3 ' 20.510.6 18.2 i O.9 19.410.8 67 19.9 i 0.7 19.6 i 1.1 19.112.7 19.3 i 1.3 71 20.2 i 1.3 20.7 i 1.0 16.4 i O.9 19.7 i 1.1 l

l

l l

TA33 J-1 l 1996 QUARTERLY REPORT l NEBRASKA PUBUC POWER DISTRICT

! COOPER NUCLEAR STA110N

! EXFOSURE PATHWAY - AMBIEffr CAMMA RADIATION: TLD milllRoentgen/ Quarter SAMPLE STATION F1RST QUARTER SECOND QUARIER 'ITURD QUARTER FOURTH QUARTER NUCLIDE NUMBER 12/26/95-04/09/96 04/09/96-07/16/96 07/16/96-10/08/96 10/08/96-01/08/97 79 20.010.9 18.1 i 1.2 15.810.9 17.4 i O.4 80 19.4 i O.6 18.010.9 15.8 i 1. I 17.9 i 0.1 81 19.510.7 18.7 i 0.9 16.5 i O.5 19.2 i 1.0 82 19.8 i O.9 19.2 i 1.2 16.8 i 1.3 19.3 i 1.0 83 20.2 i 1. I 19.4 i 0.9 17.210.9 19.4 i 1.5 84 21.6 i 0.9 20.8 i 1.1 17.1 i O.8 20.2 i 1.1 h

85 20.2 i O.5 18.2 i 1.0 15.9 i 0.9 19.4 i O.4 86 19.5 i 1.0 18.8 i 0.9 18.5 i 0.5 19.9 i 0.8 87 18.5 i 1.0 18.510.9 16.2 i 1.1 19.2 i 1.8 88 17.8 i O.4 19.110.9 16.6 i 1.0 18.110.8 89 19.610.7 18.7 i 0.7 17.3 i 1.0 18.6 1 0.7 90 18.110.9 18.6 i 0.9 15.1 i 0.6 18.010.8 91 17.810.8 18.310.7 14.7 i 0.7 17.9 i 0.5 94 21.7 i 0.8 18.9 i 1.0 17.5 i 0.5 18.9 i 0.9 Average / Quarter 104.8 days 98.1 days 84 days 92 days 19.711.1 mR/104.8 days , 18.611.0 mR/98.1 days 16.311.2 mR/84 days 18.510.9mR/92 days Average / Day 0.1910.01 mR/ day 0.1910.01 OtR day 0.1910.01 mR/ day 0.2010.01 mR/ day Range (18-22)mR/104.8 days (16-21)mR/98.1 days (14-19)mR/84 days (17-21)mR/92 days Det.frotal 32/32 32/32 32/32 32/32

TABLE J-2 1996 QUARTERLY REPORT NEBRASKA PUBLIC POWER DISTRICT COOPER NOCLutAR STATI0tt EXPOSURE PATNWAY - AMBIENT GJWSEA RADIATION: TLD mil 11 Roentgen / Quarter Aver./ Quarter TOTAL mR/ year SAfrI2 STATION

_ _ M DE NUMBER 12/26/95-01/08/97 19.2 1 2.1 76.8 TLD (r - ) 01 02 17.6 i 1.6 70.3 03 16.3 i 1.9 65.3 04 17.4 i 1.4 69.8 05 17.4 i 1.3 69.9 06 17.6 i 1.9 70.3 07 17.2 i 1.0 68.9

- 08 18.3 i 1.2 73.2

$ 09 17.4 i 2.0 69.8 10 17.4 i 1.5 69.5 20 18.4 i 2.2 73.7 44 19.911.4 79.4 56 17.8 i 1.4 71.2 58 18.4 i 1.7 73.5 59 18.3 i 1.7 73.0 66 20.0 i 1.5 79.8 67 19.4 i 0.4 77.9 71 19.3 i 1.9 77.0 l- - -- - -- - -- .

l l

TABLE J-2 1996 QUARTERLY REPORT NEBRASKA PUBLIC POWER DISTRICT f

I COOPER NDCI2AR STATION

( EXPOSURE PATRNAY - AMBIENT GApetA RADIATION: TLD mil 11 Roentgen / Quarter SADWIZ STATION Aver./ Quarter TOTAL mR/ year NUCLIDE NUMBER 01/05/95-12/26/95 TLD (Gammel 79 17.8 i 1.7 71.3 80 17.8 i 1.4 71.1 81 18.4 i 1.4 73.9 82 18.8 i 1.3 75.1 83 19.1 1 1.3 76.2 84 19.912.0 79.7 85 18.4 1 1.9 73.7 y 86 19.2 1 0.6 76.7 87 18.1 1 1.3 72.4 88 17.9 i 1.0 71.6 89 18.6 i 1.0 74.2 90 17.4 i 1.6 69.8 91 17.2 i 1.7 68.7 94 19.3 i 1.8 77.0 18.3 1 0.4 Average mR/ Quarter 73.1 1 3.6 R.ange (16-20) Aver. total mR year. All stations Range (65.3-79.8)

,a , -a- ..a,a a K FOOD - BROADLEAF VEGETATION l

1 l

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i 4

4 9

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l 176

! NEBRABEA PUBUC POWER DISTRICT COOPER NUCLEAR STATION EXPOSURE PATHWAY - INGESTION VEGETATION "IERRESTRIAL, BROADLEAF (PCI/GM WET)

STKI1ON NUMBER 35 STKI1ON 35 - 2.0 MI. 350 DEG. CON.

DATE COLLECIED- 05/15 05/15 05/15 06/25 07/16 Wild MUSTARD CURLY DOCK BURROS TAIL NOT COLIECIED GIANT RAGWEED

' RADIOCHEMICAL ANALYSIS:

I-131 LT. 1. E-02 LT.2. E-02 LT.4. E-02 LT.4. E-03 CAMMA SPECIRUM ANALYSIS:

BE-7 8.6811.00 E-01 4.9710.84 E-01 1.9710.20 E 00 2.6210.26 E 00 K-40 5.89io.59 E 00 5.3710.54 E 00 6.9410.69 E 00 7.8610.79 E 00 q MN-54 LT. 1. E-02 LT. 1. E-02 LT.7. E-03 LT. 1. E-02 N CO-58 LT. 1. E-02 LT. 1. E-02 LT. 7. E-03 LT. 1. E-02 FE-59 LT.3. E-02 LT. 3. E-02 LT.2. E-02 LT. 3. E-02 CO-60 L T. 1.

02

.- LT. 1. E-02 LT.7. E-03 LT. 1. E-02 ZN-65 LT. 3. E-02 LT.3. E-02 LT.2. E-02 LT.3. E-02 ZR-95 LT. 1. E-02 LT. 1. E-02 LT.8. E-03 LT. 1. E-02 RU-103 LT. 1. E-02 LT. 1. E-02 LT.7. E-03 LT. 1. E-02 RU- 106 LT. 1. E-01 LT. 1. E-01 LT.7. E-02 LT. 1. E-01 1-131 LT. 1. E-02 LT. 1. E-02 LT.8. E-03 LT. 2. E-02 CS-134 LT. 1. E-02 LT. 1. E-02 LT.8. E-03 LT. 1. E-02 CS-137 LT. 1. E-02 LT. 1. E-02 1.8510.61 E-02 LT. 1. E-02 BA-140 LT. 1. E-02 LT. 1. E-02 LT.8. E-03 LT.2. E-02 CE-141 LT. 2. E-02 LT.2. E-02 LT. 1. E-02 LT.2. E-02 CE-144 LT.8. E-02 LT.8. E-02 LT.5. E-02 LT. 8. E-02 RA-226 LT.2. E-01 LT.2. E-01 3.75tl.21 E-01 LT.2. E-01 TH-228 1.7310.17 E-01 LT.2. E-02 2.0610.21 E-01 LT. 2. E-02

l lutammA FUBEJC FUWER DISTRICT

' COOPER NUCIEAR STATION EXPOSURE PA1HWAY - INCEST 10N VEGETATION - TERRESTRIAL BROADt2AF i

(PCI/GM WET)

STATION NUMBER 35 STA110N 35 - 2.0 MI. 350 DEG. CON.

. DA1E COIJN 07/18 07/16 07/16 08/13 06/13 WILD GRAPE SMARIWEED GIANT RAGWEED QA WIIDGRAPE GIANT RAGWEED RADIOCHEMICAL ANALYSIS:

1-131 LT.4. E-03 LT.5. E-03 LT. 6. E-03 LT.2. E-02 LT.9. E-03

!~ GAMMA SPECTRUM ANALYSIS:

1 7

BE-7 1.7610.18 E 00 5.7010.57 E-Ol 3.2110.32 E 00 1.37*0.14 E 00 1.32*0.14 E 00 K-40 4.8110.48 E 00 5.45to.54 E 00 7.36t0.74 E 00 3.46tc.35 E 00 6.33*0.63 E 00 l G MN-54 LT.2. E-02 LT. 5. E-03 LT. 1. E-02 LT.2. E-02 LT.2. E-02 CO-58 LT.2. E-02 LT. 5. E-03 LT. 1. E-02 LT.2. E-02 LT.2. E-02

. PE-50 LT. 4. E-02 LT. 1. E-02 LT.2. E-02 LT.4. E-02 LT.4. E-02 l CO-60 LT.2. E-02 LT. 5. E-03 LT. 1. E-02 LT.2. E-02 LT.2. . E-02 l .ZN-65 LT. 4. E-02 LT. 1. E-02 LT. 3. E-02 LT. 4. E-02 ~ LT. 4- E-02 ZR-95 LT.2. E-02 LT. 5. E-03 LT. 1. E-02 LT.2. E-02 LT.2. E-02 RU-lO3 LT.2. E-02 LT.5. E-03 LT. 1. E-02 LT.1. E-02 LT.2. E-02 RU-106 LT.2. E-01 LT. 5. E-02 LT. 1. E-01 LT.2. E-01 LT.2. E-01 I-131 LT.2. E-02 LT.7. E-03 LT.2. E-02 LT.2. E-02 LT.2. E-02 CS-134 LT. 2. E-02 LT.6. E-03 LT. 1. E-02 LT.2. E-02 LT.2. E-02 CS-137 LT. 2. E-02 LT. 6. E-03~ LT. 1. E-02 LT.2. E-02 LT.2. E-02 BA-140 LT.2. E-02 LT. 5. E-03 LT. 1. E-02 LT.2. E-02 LT.2. E-02 CE-141 LT.3. E-02 LT.7. E-03 LT.2. E-02 LT.3. E-02 LT.3. E-02 CE-144 LT. 1. E-01 LT.3. E-02 LT.9. E-02 LT. 1. E-01 LT. 1. E-01 RA-226 LT. 3. E-01 LT.9. E-02 LT.3. E-01 LT.3. E-01 LT.4. E-01 TH-228 LT. 3. E-02 4.60io.51 E-02 LT.2. E-02 LT.3.. E-02 LT.3. E-02

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

NESItASKA FUBEJC POWER DISTiUCT COOPER NUCLEAR STAT 10N EXPOSURE PAlifWAY - INGES110N VEGETAT10N - TERRESTRIAL BROADLEAF (PCI/GM WET)

STA110N NUMBER 35 STATION 35 - 2.0 MI. 350 DEG. CON.

DATE CollEC1ED: 08/13 09/24 09/24 09/24 . 10/08 SWAMP SMARfWEED GIANT RAGWEED WILD GRAPE SWAMP SMARIWEED SWAMP SMARTWEED .

RADIOCHEMICAL ANALYSIS:

1-131_ LT. 6. E-03 LT. 6. E-03 E-03 LT. 6. LT.8. E-03 LT.5. E-03 GAMMA SPECTRUM ANALYSIS: -

BE-7 2.1410.21 E 00 4.1910.42 E 00 2.5410.25 E 00 1.3910.14 E 00 3.2310.32 E 00 K-40 4.6810.47 E 00 7.3010.73 E 00 5.7010.57 E 00 7.9110.79 E 00 6.0110.60 E 00 MN-54 LT.2. E-02 LT. 2. E-02 LT. 2. E-02 E-02 LT. 1. LT.2. E-02

- CO-58 LT. 1. E-02 LT. 2. E-02 LT.2. E-02 LT. 1. E-02 LT.2. E.02 5 FE-59 LT.3. E-02 LT. 4. E-02 LT.4. E-02 LT.3. E-02 LT.3. 'E.02 CO-60 LT.2. E-02 LT. 2. E.02 LT.2. E-02 LT 2. E-02 LT.2. E.02 ZN-65 LT. 3. E-02 LT.4. E-02 LT. 4. E-02 LT.3. E-02 E-02 LT.4. i ZR.95 LT. 2. E-02 LT. 2. E-02 LT. 2. E-02 LT. 1. E-02 E-02 LT.2.

RU- 103 LT.2. E-02 LT.2. E-02 LT. 2. E-02 LT. 1. E-02 LT.2. E-02 RU- 106 LT. 2. E-01 LT.2. E-01 LT. 2. E-01 LT. 1. E-02 LT. 1. E-01 1-131 LT.2. E-02 LT.2. E-02 LT.2. E-02 LT.2. E-02 LT.2. E-02 CS-134 LT.2. E-02 LT. 2. E-02 LT.2. E-02 LT. 2. E-02 LT.2. E-02 CS-137 LT.2. E-02 LT. 2. E-02 LT.2. E-02 LT. 2. E-02 2.3311.23 E-02 BA-140 LT.2. E-02 LT.2. E-02 LT. 2. E-02 LT. 1. E-02 LT. 2. E-02 CE-141 LT. 2. E-02 LT. 3. E-02 LT. 3. E-02 LT.2. E-02 LT.2. E-02 r CE-144 LT. 1. E-01 LT. 1. E-01 LT. 1. E-01 LT.9. E-02 LT. 1. E-01 RA-226 LT. 3. E-01 LT.4 E-01 LT.4. E-01 5.1812.00 E-01 LT.3. E-01 TH-228 LT. 3. E-02 1.7010.19 E-01 1.2310.20 E-01 1.9910.;20 E-01 LT.3. E-02

i MEBRASEA PUBIJC POWER DISTRICT COOPER NUCLEAR STAllON EXPOSURE PATHWAY - INGESTION i VEGETATON - TERRESTRIAL, BROADLEAF (PCI/GM WEB l STAT 10N NUMBER 35 STATION 35 - 2.0 MI. 350 DEG. CON.

DATE COLLECIED: 10/08 10/08 10/08 WILD GRAPE TALLJOEPYWEED S. SMARlWEED QA RADIOCHEMICAL ANALYSIS:

1-131 LT.8. E-03 LT.6. E-03 LT. 6. E-03 GAMMA SPECIRUM ANALYSIS:

BE-7 2.1110.21 E 00 2.7010.27 E 00 3.1210.31 E 00 K-40 5.9210.59 E 00 5.2710.53 E 00 5.0510.50 E 00 MN-54 LT. 1. E-02 LT.2. E-02 LT.2. E-02 h CO-58 LT. 1. E-02 LT.2. E-02 LT. 2. E-02 FE-59 LT. 3. E-02 LT.3. E-02 LT. 4. E-02 CO-60 LT. 2- E-02 LT.2. E-02 LT. 2. E-02 ZN-65 LT. 3. E-02 LT.4. E-02 LT. 5. E-02 I ZR.95 LT. 2. E-02 LT.2. E-02 LT.2. E-02 l RU-103 LT.2. E-02 LT. 2. E-02 LT. 2. E-02 RU-106 LT. 1. E-01 LT. 2. E-01 LT.2. E-01 l l-131 LT.2. E-02 LT.2. E-02 LT.3. E-02 j CS-134 LT.2. E-02 LT. 2. E-02 LT. 2. E-02 CS-137 6.18tl.55 E-02 8.00tl.63 E-02 1.0410.20 E-01 BA-140 LT. 2. E.02 LT.2. E-02 LT. 2. E-02 CE-141 LT. 3. E-02 LT.2. E-02 LT. 3. E-02 l CE-144 LT. 1. E-01 LT. 1. E-01 LT. 1. E-01 RA-226 LT.3. E-01 LT.3. E-01 LT.4. E-01 TH-228 7.5412.64 E-02 LT. 3. E-02 LT. 3. E-02 1

l NEBRASKA PUBtJC POWER DIST1UCT COOPER NUCIIAR STATION EXPOSURE PATHWAY - INCESDON l

VEGETADON - TERRESTRIAL, BROADlEAF l (PCI/CM WET)

STAVON NUMBER 96 STKI1ON 96 - 1.25 MI. 334 DEG. IND.

DATE COtJECTED: 05/15 05/15 05/15 05/15 QA 06/25 CURLY DOCK PENNYCRESS Wild MUSTARD CURLY DOCK PLAINTAIN RADIOCHEMICAL ANALYSIS:

1 1-331 LT.3. E-02 LT.2. E-02 LT.2. E-02 LT.3. E-02 LT. 1. E-02 GAMMA SPECTRUM ANALYSIS:

BE-7 5.0410.54 E-01 9.9511.30 E-01 1.5410.15 E 00 3.8410.56 E-Ol 1.1710.12 E 00 K.40 4.4710.45 E 00 4.1810.42 E 00 4.3510.43 E 00 4.1910.42 E 00 5.9110.59 E 00

_ MN-54 LT.7. E-03 LT.2. E-02 LT. 1. E-02 LT.8. E-03 LT. 1. E-02 3 CO-58 LT.7. E-03 LT. 2. E-02 LT. 1. E-02 LT.8. E-03 LT 1. E-02 FE-59 LT.2. E-02 LT.3. E-02 LT.2. E-02 LT.2. E-02 LT.2. E-02 CO-80 LT.7. E-03 LT. 2. E-02 LT. 1. E-02 LT.8. E-03 LT. 1. E-02 ZN-65 LT.2. E-02 LT.4. E-02 LT.2. E-02 LT.2. E-02 LT.2. E-02 ZR-95 LT. 7. E-03 LT.2. E-02 LT. 1. E-02 LT.8. E-03 LT. 1. E-02 RU-103 LT. 7. E-03 LT.2. E-02 LT. 1. E-02 LT.8. E-03 LT. 1. E-02 RU-106 LT. 6. E-02 LT.2. E-01 LT.9. E-02 LT.7. E-02 LT.9. E-02 I-131 LT. 8. E-03 LT.2. E-02 LT. 1. E-02 LT. 1. E-02 LT. 1. E-02 CS-134 LT.8. E-03 LT. 2. E-02 LT. 1. E-02 LT.9. E-03 LT. 1. E-02 CS-137 LT.8. E-03 LT.2. E-02 LT. 1. E-02 LT.9. E-03 LT. 1. E-02 BA-140 LT.7. E-03 LT.2. E-02 LT. 1. E-02 LT.9. E-03 LT. 1. E-02 CE-141 LT.9. E-03 LT.2. E-02 LT.2. E-02 LT. 1. E-02 LT.2. E-02 CE-144 LT.4. E-02 LT. 1. E-01 LT.7. E-02 LT.5. E-02 LT.7. E-02 RA-226 LT. 1. E-01 LT.3. E-01 LT.2. E-01 LT. 1. E-01 LT.2. E-01 TH-228 6.5411.02 E-02 7.4012.33 E-02 2.0210.20 E-Ol 3.2611.03 E-02 1.9110.19 E-01

NEBRASEA FUEEJC POWER DISTIUCT COOPER NUCI. EAR STAVON EXPOSURE PA'IHWAY - INGESTION VEGETA~I1ON - 1ERRESTRIAL, BROADIEAF (PCI/GM WE"Il STAllON NUMBER 96 STATION 96 - 1.25 MI. 334 DEG. IND.

DATE cot 1ECIED: 06/25 06/25 07/16 07/16 07/16 CURLY DOCK CHICKWEED COCKIEBUR VELVETWEED SMAR7 WEED RADIOCHEMICAL ANALYSIS:

I-131 LT.9. E-03 LT.4. E-03 LT. 5. E-03 LT 5. E-03 LT.5. E-03 GAMMA SPEC'IRUM ANALYSIS:

BE-7 1.5310.15 E 00 7.80i0.96 E-01 7.7410.77 E-01 7.6410.87 E-01 3.1410.31 E 00 K-40 3.5610.36 E 00 6.7610.68 E 00 6.4010.64 E 00 8.4910.85 E 00 4.19io.42 E 00 MN-54 LT. 1. E-02 LT. 1. E-02 LT. 9. E-03 LT. 1. E-02 LT. 1. E-02

$ CO-58 LT. 1. E-02 LT. 1. E-02 LT.9. E-03 LT. 1. E-02 LT. 1. E-02 FE-59 LT.3. E-02 LT.3. E-02 LT.2. E-02 LT.2. E-02 LT.3. E-02 CO-60 LT. 2. E-02 LT. 1. E-02 LT. 1. E-02 LT. 1. E-02 LT. 1. E-02 ZN-65 LT.3. E-02 LT.3. E-02 LT.2. E-02 LT. 3. E-02 L T. 3. E-02 ZR-95 LT. 1. E-02 LT. 1. E-02 LT.9. E-03 LT. 1. E-02 LT. 1. E-02 RU-103 LT. 1. E-02 LT. 1. E-02 LT.9. E-03 LT. 1. E-02 LT. 1. E-02 RU-106 LT. 1. E-01 LT. 1. E-01 LT.8. E-02 L T. 1. E-01 LT. 1. E-01 1-131 LT.2. E-02 LT. 1. E-02 LT. 1. E-02 LT. 1. E-02 LT.2. E-02 CS-134 LT.2. E-02 LT. 1. E-02 LT. 1. E-02 LT. 1. E-02 LT. 1. E-02 CS-137 LT.2. E-02 LT. 1. E-02 LT. 1. E-02 LT. 1. E-02 L.T. 1. E.02 BA-140 LT.2. E-02 LT. 1. E-02 LT.9. E-03 LT. 1. E-02 LT. 1. E-02 CE-141 LT.2. E-02 LT.' 2. E-02 LT. 1. E-02 LT. 2. E-02 LT.2. E-02 CE-144 LT.9. E-02 LT.8. E-02 LT.6. E-02 LT. 6. E-02 LT.8. E-02 RA-226 LT.3. E-01 LT. 2. E-O 1 LT.2. E-01 LT. 2. E-01 LT.2. E-01 TH-228 9.5512.00 E-02 1.7210.17 E-01 LT.2. E-02 3.8210.99 E-02 LT.2. E-02

-. - - - - --v -

_m . . _ _ --.__.__o_ ______m_______m

NEERASEA PUBEJC FOWER DISTRICT COOPER NUCI. EAR STA'110N EXPOSURE PATHWAY - INGESTION VEGET. ATION "IERRESTRIAL. BROADIEAF (PCl/GM WET)

STA'I1ON NUMBER 96 STATION 98 - 1.25 ML 334 DEG. IND.

DATE cot 1ECTED: 08/13 08/13 08/13 08/13 09/24 S. SMARIWEED PARTRIDGE PEA VELVETWEED S. MWAR1 WEED QA COCNIEBURR RADIOCHEAGCAL ANALYSIS:

1-131 LT. 8. E-03 LT.7. E-03 LT. 6. E-03 LT. 6. E-03 LT. 1. E-02 GAMMA SPECTRUM ANALYSIS:

CE-7 2.9010.29 E 00 8.9511.28 E-01 9.58i1.I4 E-01 2.1410.21 E 00 1.1310.18 E 00 K-40 2.9610.30 E 00 3.6310.36 E 00 6.4610.65 E 00 2.5910.26 E 00 5.3210.53 E 00 MN-54 LT. 1. E-02 LT.2. E-02 LT. 1. E-02 LT.2. E-02 LT. 2. E-02 h CO-58 LT. 1. E-02 LT.2. E-02 LT. 1. E-02 LT. 2. E-02 LT.2. E-02 FE-59 LT. 3. E-02 LT.3. E-02 LT.3. E-02 LT.3. E-02 LT. 5. E-02 CO-80 LT. 1. E-02 LT.2. E-02 LT. 1. E-02 LT. 1. E-02 LT. 2. E-02 ZN.65 LT. 3. E-02 LT.4. E-02 LT.3. E-02 LT.3. E-02 LT.5. E-02 ZR-95 LT. 1. E-02 LT.2. E-02 LT. 1. E-02 LT. 1. E-02 LT.2. E-02 RU-103 LT. 1. E-02 LT.2. E-02 LT. 1. E-02 LT.2. E-02 LT.2. E-02 RU-106 LT. 1. E-01 LT.2. E-01 LT. 1. E-01 LT. 1. E-01 LT.2. E-01 1-131 LT. 2. E-02 LT.2. E-02 LT.2. E-02 LT.2. E LT.3. E-02 CS-134 LT. 1. E-02 LT.2. E-02 LT. 1. E-02 LT.2. E-02 LT.2. E-02 CS-137 LT. 1. E-02 LT.2. E-02 LT. 2. E-02 LT.2. E-02 LT.2. E-02 BA-140 LT. 1. E-02 LT.2. E-02 LT. 1. E-02 LT.2. E-02 LT.2. E-02 CE-141 LT. 2. E-02 LT.2. E-02 LT.2. E-02 LT.2. E-02 LT. 3. E-02 CE-144 LT.8. E-02 LT. 1. E-01 LT. 9. E-02 LT. 1. E-01 LT. 1. E-01 RA-226 LT. 2. E-01 LT.3. E-01 LT. 3. E-01 LT.3. E-01 LT.4. E-01 TH-228 LT.2. E-02 LT.3. E-02 LT.2. . E-02 LT.3. E-02 LT.4. E-02

NEBRASKA FUBUC POWER DISTRICT CCOPER NUCLEAR STAT 10N EXPOSURE PATHWAY - INGESTION VEGETATION - TERRESTRIAL BROADLEAF (PCI/GM WE'Il STATION NUMBER 96 STAT 10N 96 - 1.25 ML 334 DEG. IND.

DATE COLECIED: 09/24 09/24 10/08 10/08 10/08 S. SMARIWEED LATE GOLDENROD LATE GOLDENROD S. SMARIWEED HEATHER ASTER RADIOCHEMICAL ANALYSIS:

I.131 LT. 5. E-03 LT.7. E-03 LT.4. E-03 LT.5. E-03 LT. 7. E-03 GAMMA SPECTRUM ANALYSIS:

BE-7 4.1710.42 E 00 2.4610.25 E 00 2.3610.24 E 00 2.7810.28 E 00 1.5Pto.16 E 00 K-40 3.1310.31 E 00 5.7710.58 E 00 4.9110.49 E 00 2.4610.25 E 00 5. Gto.52 E 00

_ MN-54 LT.2. E-02 LT.2. E-02 LT. 1. E-02 LT. 1. E-02 LT. 1. E-02

% CO-58 LT. 2. E-02 LT.2. E-02 LT. 1. E-02 LT. 1. E-02 LT. 1. E-02 FE-59 LT. 3. E-02 LT.3. E-02 LT.3. E-02 LT.3. E-02 LT.3. E-02 CO-60 LT. 2. E-02 LT.2. E-02 LT. 1. E-02 LT. 1. E-02 LT. 1. E-02 ZN-65 LT.4. E-02 LT.4. E-02 LT.3. E-02 LT.4. E-02 LT.3. E-02 ZR-95 LT. 2. E-02 LT.2. E-02 LT. 1. E-02 LT.2. E-02 LT. 1. E-02 RU-103 LT. 2. E-02 LT.2. E-02 LT. 1. E-02 LT.2. E-02 LT. 1. E-02 RU-106 LT. 2. E-01 LT.2. E-01 LT. 1. E-01 LT. 1. E-01 LT. 1. E-01 1-131 LT. 2. E-02 LT.2. E-02 LT.2. E-02 LT.2. E-02 LT.2. E-02 CS-134 LT.2. E-02 LT.2. E-02 L T. 1. E-02 LT.2. E-02 LT.2. E-02 CS-137 LT.2. E-02 LT. 2. E-02 LT. 1. E-02 9.5311.44 E-02 3.6911.23 E-02 BA-140 LT. 2. E-02 LT.2. E-02 LT. 1. E-02 LT. 1. E-02 LT.2. E-02 CE-141 LT.3. E.02 LT.2. E-02 LT.2. E-02 LT.2. E-02 LT 2. E-02 CE-144 LT. 1. E-01 LT. 1. E-0i LT. 9. E-02 LT. 1. E.01 LT.8. E-02 RA-226 LT.3. E-01 LT.3. E-01 LT.3. E-01 LT. 3. E-01 LT. 3. E-01 TH-228 1.3210.23 E-01 1.3710.19 E-01 LT. 2. E-02 LT 2. E-02 LT.2. E-02

__-______ __________m__ -_______- _ -- . _ _ - __ - _ ___ _ _ _ . _ _ _ - _ _ _ _

NEERASEA PUBIJC POWER DISTRICY COOPER NUCLEAR STA110N EXPOSURE PKilfWAY - INGESTION VEGETATION - TERRES11tlAL, BROADLEAF (PCl/GM WET)

STA110N NUMBER 101 STA110N 101 - 13.3 M1. 73 DEG. CON.

DATE COllECIED: 05/15 05/15 05/15 CURLY DOCK PENNYCRESS DANDELION RADIOCHEMICAL ANALYSIS:

1-131 LT. 1. E-02 LT.5. E-02 LT.2. E-02 GAMMA SPECTRUM ANALYSIS:

BE-7 1.0310.I1 E 00 1.1310.I1 E 00 2.0210.20 E 00 K-40 3.7410.37 E 00 5.2910.53 E 00 4.0310.40 E 00 MN-54 LT. 1. E-02 LT. 1. E-02 LT. 1. E-02

- CO-58 LT. 1. E-02 LT.9. E-03 LT. 1. E-02

$ FE-59 LT.3. E-02 LT.2. E-02. LT.2. E-02 CO-60 LT. 1. E-02 LT. 1. E-02 LT. 1. E-02 ZN-65 LT.3. E-02 LT.3. E-02 LT.3. E-02 ZR-95 LT. 1. E-02 LT. 1. E-02 - LT. 1. E-02 RU-103 LT. 1. E-02 LT. 1. E-02 LT. 1. E-02 RU-106 LT. 1. E-01 LT. 9. E-02 LT. 1. E-01 1-131 LT. 1. E-02 LT. 1. E-02 LT. 1. E-02 CS-134 LT. 1. E-02 LT. 1. E-02 LT 1. E-02 CS-137 LT. 1. E-02 2.6910.97 E-02 LT. 1. E-02 BA-140 LT. 1. E-02 LT. 1. E-02 LT. 1. E-02 CE-141 LT.2. E-02 LT.2. E-02 LT. 1. E-02 CE-144 LT. 1. E-01 LT.8. E-02 . LT. 7. E-02 RA-226 LT.3. E-01 LT.2. E-01 LT. 2. E-01 TH-228 LT.3. E-02 1.1410.13 E-01 LT.2. E-02

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

f l -aara yUMJC FUWER DISTRICT COOPER NUClJ!:AR STATION EXPOSURE PATHWAY - INCEST 10N l VEGETATION - TERRESTRIAL. BROADt.EAF

!- (PCI/GM WET) -

STA110N NUMBER 102 ;

STATION 102 -

DATE COLLECTED: 05/14 05/14 05/14 06/25 06/25-CURLYDOCK DANDElJON PENNYCRESS YEllDWSW CIDVER SUNFIDWER RADIOCHEMICAL ANALYSIS:

I-131 LT.2. E-02 LT.2. E-02 LT.2. E-02 LT.2. E-02 LT. 5. E-03 GAMMA SPECITtUM ANALYSIS:

BE-7 8.20*0.82 E-01 1.9910.20 E 00 7.8410.78 E-01 7.95tl.26 E-Ol 1.7310.17 E 00 4.4810.45 E 00 7.1110.71 E 00 K-40 4.5810.46 E 00 5.8610.57 E 00 3.99fD.40 E 00 MN-54 LT.9. E-03 LT.8. E-03 LT.9. E-03 LT.2. E-02 LT. 1. E-02

~ CO-58 LT.9. E-03 LT.8. E-03 LT.9. E-Oh LT. 1. E-02 LT. 1. E-02

$ FE-59 LT.2. E-02 LT.2. E-02 LT.2. E-02 LT.3. E-02 LT.3. E-02 ;

CO-80 LT. 1. E-02 LT. 9. E-03 LT.9. E-03 LT. 1. E-02 LT. 1. E-02 ZN-65 LT.2. E-02 LT.2. E-02 LT.2. E-02 LT. 4. E-02 LT.3. E-02 i l

ZR-95 LT. O. E-03 LT.P. E-03 LT.9. E-03 LT.2. E-02 LT.'l. E-02 RU-103 LT. 1. E-02 LT.9. E-03 LT.9. E-03 LT.2. E-02 LT. l. E-02 RU-106 LT.9. E-02 LT.8. E-02 LT.8. E-02 LT. 1. E-01 LT. ' l. E-01 1-131 LT. 1. E-02 LT. 1. E-02 LT. 1. E-02 LT.2. E-02 LT. 2. E-02 CS-134 LT. 1. E-02 LT.9. E-03 LT. 9. E-03 LT.2. E-02 LT. 1. E-02 t CS-137 LT. 1. E-02 LT. 9. ' E-03 LT. 1. E-02 LT.2. E-02 LT.2. E-02 I BA-140 LT. 1. E-02 LT.9. E-03 LT. 1. E-02 LT.2. E-02 LT. 1. E-02 CE-141 LT. 1. E-02 LT. 1. E LT. 1. E-02 LT.2. E-02 LT.2. E-02 CE-144 LT.6. E-02 LT.5. E-02 LT.5. E-02 LT. 1. E-01 LT.8. E-02 RA-226 . LT. 2. E-O1 LT.2. E-01 LT.2. E-01.. LT.3. E-01 LT.3. E-01 l TH-228 LT.2. E-02 3.6510.81 E-02 2.0211.12 E-02 1.8410.23 E-01 5.2311.86 E-02 l

i

__ __ _ _ _ _ _ _ . _ _ _ _ . _ _ _ _ _ _ _ _ _ . . _ ._ _ _ _ _ . . _ _ _ . .. _ _ _ _ _ _ _ _ . _ _ _ _ _ _ i:

l l NEERASEA PUBEJC POWER La8TRICT COOf'ER NUCLEAR STADON l

' EXPOSURE PATHWAY - INCES" DON VEGETAT10N - TERRESTRIAL, BROADLEAF (PCI/GM WET) l STATION NUMBER 102 STATION 102 -

DATE COLI2CTED: 06/25 06/25 07 /16 07/16 DAISY 07/16 YEIJDW SW CIER/ER SUNFIDWER GOLDENROD RED CIDVER RADIOCHEMICAL ANALYSIS:

1-131 LT. 6. E-03 LT. 6. E-03 LT.7. E-03 L T. 5. E-03 LT.4. E-03 5

CAMMA SPEclRUM ANALYSIS:

BE-7 1.1210.13 E 00 5.8711.27 E-01 1.26t0.13 E 00 2.54t0.25 E 00 2.3010.23 E 00 K-40 5.6410.56 E 00 5.0610.51 E 00 6.7710.68 E 00 4.2410.42 E 00 5.7610.58 E 00 g MN-54 LT.2. E-02 LT.2. E-02 LT. 1. E-02 LT.7. E-03 LT. 1. E-02

-4 CO-58 LT.2. E-02 LT.2. E-02 LT. 1. E-02 LT.7. E-03 LT. 1. E-02 FE-59 LT 3. E-02 LT.4. E-02 LT.3. _ E-02 LT.2. E-02 LT. 3. E-02 CO-80 LT.2. E-02 LT.2. E-02 LT. 1. E-02 LT.8. E-03 LT.2. E-02' ZN-65 LT.4. E-02 LT.4. E-02 LT.3. E-02 LT.2. E-02 LT.3. E-02 ZR-95 LT.2. E-02 LT.2. E-02 LT. 1. E-02 LT.7. E-03 LT. 1. E-02 RU-103 LT.2. E-02 LT.2. E-02 LT. 1. E-02 LT.7. E-03 LT. 1. E-02 RU-lO6 LT.2. E-01 LT.2. E-01 LT. 1. E-01 LT.6. E-02 LT. 1. E-01 i 1-131- LT.2. E-02 LT.2. E-02 LT.2. E-02 LT.9. E-03 LT.2. E-02 CS-134 LT.2. E-02 LT.2. E-02 LT. 1. E-02 LT.8. E-03 LT. 1. E-02 CS-137 LT.2. E-02 LT. 2. - E-02 LT. 1. E-02 LT.8. E-03 LT. 1. E-02 BA-140 LT.2. E-02 LT.2. E-02 LT. 1. E-02 LT.9. E-03 LT. 1. E-02 CE-141 LT.3. E-02 LT.2. E-02 LT.2. E-02 LT. 1. E-02 LT.3. E-02 CE-144 LT. 1. E-01 LT. 1. E-01 LT.7. E-02 LT.4. E-02 LT. 1. E-01 t

RA-226 LT.4. E-01 LT.3. E-01 LT.2. E-01 LT. 1. E-01 LT.3. E-01 TH-228 1.7610.29 E-01 2.4410.25 E-01 LT.2. E-02 LT. 1. E.02 LT.3. E-02

NESRASEA FUBEJC FUWER DIST1tICT COOPER NUCLEAR STA110N EXPOSURE PA1NWAY - INGES110N VEGETA'I1ON "IERRESTRIAL. BROADfEAF (PCI/GM %TIl STATION NUMBER 102 STA*I1ON 102 -

f DA1E COllECIED: 08/13 08/13 08/13 09/24 09/24 f PARIRIDGE PEA SUNFIDWER MILKWEED SUNFLOWER LATE GOEDENROD RADIOCHEMICALANALYSIS:

I-131 LT. 7. E-03 LT.7. E-03 LT.8. E-03 LT.9. E-03 LT. 5. E-03 GAMMA SPECTTRUM ANALYSIS:

BE-7 9.5211.06 E-O1 3.3810.34 E 00 7.1510.90 E-01 5.2010.52 E 00 5.7310.57 E 00 K-40 2.5010.25 E 00 6.5010.65 E 00 2.0010.20 E 00 8.0010.80 E 00 8.2710.63 E 00 MN-54 LT. 1. E-02 LT. 1. E-02 LT. 1. E-02 LT.2. E-02 LT. 1. E-02

~

CO-58 LT. 1. E-02 LT. 1. E-02 LT. 1. E-02 LT.2. E-02 LT.2. E-02 FE-59 LT.3. E-02 LT.3. E.02 LT.3. E-02 LT. 5. E-02 LT.3. E-02 CO-80 LT. 1. E-02 LT. 1. E-02 LT. 1. E-02 LT.2. E-02 LT.2. E-02 ZN-65 LT. 3. E-02 LT. 3. E-02 LT.3. E-02 LT.6. E-02 LT.4. E-02 ZR-95 LT. 1. E-02 LT. 1. E-02 LT. 1. E-02 LT.2. E-02 LT.2. E-02 RU-103 LT. 1. E-02 LT.2. E-02 LT. 1. E-02 LT. 2. E-02 LT. 1. E-02 RU-lO6 LT. 1. E-01 LT. 1. E-01 LT. 1. E-01 LT.2. E-01 LT. 2. E-01 I-131 LT. 1. E-02 LT.5. E-02 LT.2. E-02 LT.3. E-02 LT. 2. E-02 CS-134 LT. 1. E-02 LT. 1. E-02 LT. 1. E-02 LT. 2. E-02 LT. 2. E-02 CS-137 LT. 1. E-02 LT. 1. E-02 LT. 1. E-02 LT.3. E-02 LT. 2. E-02 BA-140 LT. 1. E-02 LT. 2. E-02 LT. 1. E-02 LT. 2. E-02 LT. 2. E-02 CE-141 LT.2. E-02 LT.3. E-02 LT.2. E-02 LT. 3. E-02 LT.2. E-02 CE-144 LT.7. E-02 LT. 1. E-01 LT.8. E-02 LT. 1. E-01 LT. 9. E-02 RA-226 LT. 2. E-01 LT.3. E-01 LT.2. E-01 LT.4. E-01 LT.3. E-01 TH-228 LT.2. E-02 LT.3. E-02 LT.2. E-02 9.0112.40 E-02 LT.3. E-02

NEBRASKA FUBEJC POWER DISTRBCT COOPER NUCLEAR STATION EXPOSURE PATHWAY - INGESTION VECETATION - TERRESTRIAL. BROADLEAF (PCI/CM WET)

STATION NUMBER 102 STATION 102 -

DATE COLIECIED: 09/24 09/24 QA 10/08 10/08 10/08 GIANT RAGWEED SUNFLOWER TAILJOEPYWEED BURCUCUMBER GIANT RAGWEED RADIOCIEMICAL ANALYSIS:

1 131 LT.8. E-03 LT. 9. E-03 E-03 LT. 5. LT.6. E-03 LT. 7. E-03 GAMMA SPECTRUM ANALYSIS:

DE-7 4.0110.40 E 00 3.8810.39 E 00 2.8610.29 E 00 2.8710.29 E 00 1.3810.14 E 00 K-40 6.8910.69 E 00 6.4110.64 E 00 8.3710.84 E 00 4.3310.43 E 00 5.7510.58 E 00

- MN-54 LT.2. E-02 LT. 1. E-02 LT.2. E-02 LT.6. E-03 LT. 2. E-02

$ CO-58 LT.2. E-02 LT. 1. E-02 LT. 2. E-02 LT. 5. E-03 LT.2. E-02 FE-59 LT.4. E-02 LT.3. E-02 LT. 3. E-02 LT. 1. E-02 LT.3. E-02 CO-60 LT. 2. E-02 LT.2. E-02 E-02 LT. 2. LT.6. E-03 LT. 2. E-02 ZN-65 LT.4. E-02 LT. 3. E-02 E-02 LT. 1. E-02 LT. 4. LT. 4. E-02 ZR-95 LT.2. E-02 LT. 2. E-02 LT.2. E-02 E-03 LT.6. ' LT. 2. E-02 RU- 103 LT.2. E-02 LT. 2. E-02 LT.2. E-02 LT.6. E-03 LT 2. E-02 RU-106 LT.2. E-01 LT. 1. E-01 LT. 1. E-01 LT. 5. E-02 LT.2. E-01 f 131 LT. 2. E-02 LT. 2. E-02 LT. 2. E-02 LT. 7. E-03 LT.2. E-02 i CS-134 LT.2. E-02 LT.2. E-02 LT. 2. E-02 LT.6. E-03 LT.2. E-02 CS-137 LT.2. E-02 LT.2. E-02 6.7111.46 E-02 7.84i3.88 E-03 8.2111.54 E-02 ,

BA-140 LT.2. E-02 LT.2. E-02 E-02 LT. 6.

LT. 2. E-03 LT. 2. E-02 !

CE-141 ' LT.3. E-02 LT. 2. E-02 E-02 E-03 LT. 2. LT.8. LT. 2. E-02 CE-144 LT. I. E-01 LT.9. E-02 LT. 1. E-01 LT. 3. E-02 ' LT. 1. E-01 RA-226 LT.5. E-01 LT.3. E-01 LT.3. E-01 LT. 1. E-01 LT.3. E-01 TH-228 1.0610.25 E-01 6.5711.62 E-02 LT.3. E-02 LT. 1. . E-02 LT.3. E-02 l

<-m - - . -,,.-- -, e~ - w-mv .-m -- w ---

L SHORELINE SEDIMENT 190

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

IEEBItASEA PUBtJC POWER DISTit3CT COOPER NUCLEAR STATION EXPOSURE PA'llfWAY - AIRBORNE SHORELINE SEDIMENT.

(PC1/CM DRYI STATION NUMBER 28 STATION 28 - 1.8 MI.150 DEG. IND.

DATE COLLECTED: 05/07 10/01 CAMMA SPEC 1 RUM ANALYSIS:

BE-7 LT.7. E-02 4.4510.46 E-01 K-40 1.9510.20 E O1 1.5210.15 E O1 MN-54 1.8010.62 E-02 1.4610.35 E-02 CO-58 LT. 8. E.03 LT. 6. E-03 FE-59 LT.2. E-02 LT. 1. E-02 CO-60 LT.9. E.03 LT.6. E-03 ZN-65 LT.2. E-02 LT. 1. E-02 ZR-95 LT. 1. E-02 LT.8. E.03

- RU- 103 LT.8. E-03 LT.6. E-03 3 RU-106 LT.7. E-02 LT.5. E-02 1-131 LT. 1. E-02 LT. 1. E-02 CS-134 LT. 1. E-02 LT.8. E-03 CS-137 9.2610.93 E-02 7.0310.70 E-02 BA-140 LT. 1. E-02 LT.9. E-03 1 CE-141 LT. 1. E-02 LT. 1. E-02 CE-144 LT.6. E-02 LT.5. E-02 RA-226 1.0910.I1 E 00 1.4110.I4 E 00 TH-228 1.1010.I1 E 00 8.7410.87 E-01 ;

U-235 1.2310.43 E-01 TH-234 2.2810.26 E 00

REFERENCES

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, Montgomery, Alabama.

6. U.S. Department of Energy; EML 460. October 1,1986; En~vironmental Measurements Laboratory, US Department of Energy, New York, New York 10014.

7. U.S. Nuclear Regulatory Commission,1975, Regulatory Guide 4.8.

Environmental Technical Specifications for Nuclear Power Plants.

I L

l 192

APPENDIX

e APPENDIX A LAND USE CENSUS i

1 e

l l

a A-1

ANNUAL CNS LAND USE CENSUS July 15, 1996 0-3 miles I l

Cooper Nuclear Station (CNS) Radiological Effluent Technical !

Specifications -(RETS) require an annual land use census. This 1 census identifies the location of the nearest garden that is greater than 500 square feet in area and yields leafy green vegetables, the nearest milk animal, and the location of the nearest resident in each of the 16 meteorological sectors within 3 miles of CNS.

In accordance with CNS RETS, a land use census was performed on July 15, 1996. The nearest garden and residence to CNS are in sector Q, 0.9 miles from CNS.

No milk animals were found within 3 miles of CNS in 1996 and there was no evidence of potable water use from the Missouri. River within l three miles downstream of CNS.

l l

A-2

l l

I 1

I LAND USE CENSUS I July 15, 1996 l 0-3 Miles l l

l NEAREST SECTOR NEAREST RESIDENT NEAREST GARDEN MILK ANIMAL l

A 3.0 Miles 1.0' 3.0 Miles 1.0* NONE I B 2.7 Miles 13.0' NONE NONE C NONE ,

NONE NONE D 1.7 Miles 62.0* 1.7 Miles 62.0' NONE E 1.8 Miles 94.0* 1.8 Miles 94.0* NONE F 2.4 Miles 112.0* 2.6 Miles 107.0* NONE G 2.2 Miles 133.5* NONE NONE H NONE NONE NONE _

J NONE NONE NONE K 1.8 Miles 208.0' 1.8 Miles 208.0* NONE L 1.3 Miles 221.0* 2.2 Miles 225.0* NONE H 1.3 Miles 251.0' 1.3 Miles 251.0* NONE N 1.0 Miles 266.5' NONE NONE P 1.6 Miles 294.0' 2.3 Miles 295.0' NONE O 0.9 Miles 307.0* 0.9 Miles 307.0* NONE R 1.9 Miles 335.0* NONE NONE A-3

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APPENDIX B INTERLABORATORY COMPARISON PROGRAM i

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1996

A summary of the Results of the Analyses by Teledyne Brown Engineering -

Environmental Services of the EPA and Analytics, Inc. Cross Check Samples j Compared with the Known Activity as reported by the Environmental Monitoring Systems laboratory Las Vegas. Nevada and Analytics, Inc.

l All results which exceed three sigma deviation from the known are ap-pended with a note giving the possible cause of the deviation and corrective action taken.

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l EPA INTERLABORATORY COMPARISON PROGRAM 1996 I Environmental Collection Teledyne Brown Date Media Nuclide EPA Resultfa) Engineering Resultib) Deviation (c) 01/23/96 Water Sr-89 73.0 1 5.0 73.67 1 3.21 0.23 Sr 90 5.0 5.0 5.00 0.00 0.00 01/26/96 Water Gr-Alpha 12.1 5.0 19.00 1.00 2.39 (d)

Gr Beta 7.0 1 5.0 7.13 0.21 0.05 02/02/96 Water 1-131 67.0 7.0 71.67 3.06 1.15 03/08/96 Water H-3 22002.0 2200.0 22000.00 1 0.00 0.00 04/16/96 Water Gr-Beta 166.9 25.0 160.00 0.00 -0.48 Sr-89 43.0 5.0 41.33 2.31 -0.58 Sr 90 16.0 5.0 15.33 0.58 0.23 Co 60 31.0 5.0 31.67 1.15 0.23 Cs 134 46.0 5.0 42.33 1.53 -1.27 Cs 137 50.0 5.0 52.33 1.53 0.81 Gr-Alpha

74.8 18.7 63.67 2.89 1.03 Ra-226 3.0 0.5 3.40 0.00 1.39 Ra-228 5.0 t 1.3 3.63 0.61 -1.82 06/07/96 Water Co-60 99.0 1 5.0 99.00 1.73 0.00 Zn-65 300.0 30.0 309.33 2.08 0.54 Cs.134 79.0 5.0 69.67 1.53 -3.23 (e)

Cs 137 197.0 10.0 202.00 2.65 0.87 Ba-133 745.0 1 75.0 711.00 71.42 -0.79 06/21/9G Water Ra-226 4.9 0.7 5.50 0.26 1.48 Ra 228 9.01 2.3 9.73 0.46 0.55 07/12/96 Water Sr 89 25.0 1 5.0 22.67 1.53 -0.81 Sr-90 12.0 1 5.0 12.33 1.15 0.12 07/19/96 Water Gr Alpha 24.4 6.1 22.67 0.58 0.49 Gr Beta 44.8 5.0 45.33 2.08 0.18 08/09/96 Water H3 10879.0 1088.0 9800.00 346.41 -1.72 09/27/96 Water Ra 226 14.0 2.1 14.00 1.00 100 Ra-228 4.7 i 1.2 6.20 0.50 .2.17 (0 10/02/96 Water 1 131 27.0 1 6.0 26.33 2.31 -0.19 B-3

EPA INTERLABORATORY COMPARISON PROGRAM 1996 Environmental Collecuon Teledyne Brown Date Media Nuclide EPA Resultla) Engineering Result (b) Deviation (c) 10/15/96 Water Gr-Alpha 59.1 14.8 55.671 5.03 -0.40 Ra 226 9.9 1.5 10.00 1 0.00 0.12 Ra 228 5.1 1 1.3 5.47 i 0.31 0.49 Gr-Beta 111.8 16.8 110.0 1 0.00 -0.19 Sr-89 10.0 5.0 9.00 i O.00 -0.35 Sr 90 25.0 5.0 26.00 1.00 0.35 Co-60 15.0 5.0 14.67 1.53 -0.12 Cs 134 20.0 5.0 19.67 1.15 -0.12 Cs 137 30.0 5.0 29.33 1.15 -0.23

10/25/96 Water Gr-Alpha 10.3 5.0 9.03 0.72 -0.44 I

Gr-Beta 34.6 5.0 39.67 0.58 1.76 11/08/96 Water Co 60 44.0 5.0 44.67 i O.58 0.23 Zn 65 35.0 5.0 38.67 0.58 1.27 Cs 134 11.0 5.0 12.00 0.00 0.35 Cs-137 19.0 5.0 20.67 1.15 0.58 Ba 133 64.0 6.0 56.67 3.21 -2.12 (g) 12/06/96 Water Ra-226 20.1 3.0 20.33 0.58 0.13 Ra 228 10.2 2.6 10.33 0.58 0.09 Footnotes:

(a) EPA Results Expected laboratory precision (1 sigma). Units are pCi/ liter for water and milk except K is in mg/ liter. Units are total pCi for air particulate filters. ,

(b) Tcledyne Results Average i one sigma. Units are pCi/ liter for water and milk except K is in mg/ liter. Units are total pCi for air paruculate mters.

(c) Normalized deviation from the known.

(d) The variation was due to self absorpuon properties of the EPA sample matrix. On future EPA water samples of this type, we will determine the overall alpha counting efficiency by spiking the matrix with Th 230 in accordance with their recent advisory.

(c) To verify the cause for the deviation, a Cs 134 standard has been purchased. If the Cs-134 emetency is lower than the emclency at 604 kev and 795 kev. then rather than change those efficiencies (which may be needed for other isotopes of comparable energies), tne Cs 134 branching intensity shall be adjusted.

(f) Erroneously low certum yields were obtained in back-extraction from HDEHP. Greater care to be taken during back extracuon. If th!s operauon is incomplete the cerium carrier yield becomes lower than the Ac 228 yield. ~1ha procedure had been revised to require additional back extracdons for longer periods of Ume to ensure that proper cerium carrier yields are obtained. The procedure is under review to determine if addiuonal back extractions are required.

(g) An invesugation is being conducted: the results will be available shortly.

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ANALYTICS CROSS CHECK COMPARISON PROGRAM 1998 Teledyne Brown Analytics Sample ID Media Nuclide Engineering Result (a) Result Ratio (b)

E0633-396 Water I 131 39 i 5 36 i 2 1.08 D #11912 Cc 141 89 i 9 88 1 4 1.01 03/12/96 Cr-51 330 i 30 3221 16 1.02 Cs 134 53 i 5 58 1 3 0.91 Cs-137 65 i 7 64 i 3 1.02 Co-58 49 i 5 48 i 2 1.02 Mn-54 37 4 31 1 2 1.19 Fe-59 93 i 9 83 i 4 1.12 Zn-65 1001 10 97 i 5 1.03 CO-60 81 i 8 76 i 4 1.07 E0635-396 Milk I-131 16 i 6 13 1 1 1.23 D #11914 Cc-141 2401 20 234 i 12 1.03 03/12/96 Cr-51 880i 90 8581 43 1.03 Cs-134 150i 20 154i 8 0.97 Cs-137 1801 20 1701 9 1.06 Co-58 1401 10 1281 6 1.09 Mn-54 93 1 9 84 i 4 1.11 Fe-59 2501 30 2231 11 1.12 Zn-65 260i 30 260i 13 1.00 Co-60 220 i 20 204i 10 1.08 E0636-396 Water H3 28001 200 2982 149 0.94 V #11913 03/12/96 EO746-396 Air Filter Gross Beta 1501 10 1441 7- 1.04 TI#19220 06/19/96 EO747 396 Air Filter Ce 141 5001 50 4001 20 1.25 V #19221 Cr 51 12001 100 1048i 52 1.15 06/19/96 Cs-134 3101 30 310 i 16 1.00 Cs-137 9101 90 7641 38 1.19 Co-58 2101 20 1731 9 1.21 Mn-54 6901 70 559 i 28 1.23 Fe 59 190 i 20 144i 7 1.32 Zn-65 1401 10 1081 5 1.30 Co-60 1801 20 156i 8 1.15 Footnotes:

(a) Teledyne Results - counting error is two standard deviations. Units are pCi/ liter for water

and milk. For gamma results, if two standard deviations an less than 10%, then a 10% ermr l

1s reported. Units are total pC1 for air particulate filters.

l (b) Ratio of Teledyne Brown Engineering to Analytics results.

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-amui-mi iumiis -- -----

APPENDE C STATISTICAL NOTES l

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APPENDIX C STATISTICAL NOTES

1. Each activity is reported in one of two forms:

x i s or

<L, where x = value of measurement; s = counting error at the 95%

confidence level (2 sigma error);

L = detection limit based on 4.66 sigma error 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 statistical table, the values are entered as xis l or <L where I = sample mean = Ix; n

n = number of data points averaged; I = 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.

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 of 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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Appendix 0 Notification Levels

NEBRASKA PUBLIC POWER DISTRICT COOPER NUCLEAR STATION ENVIRONMENTAL RADIATION SURVEILIANCE PROGRAM NOTIFICATION LEVELS Media and Nuclide Notification Level Air Cross Alpha .

Cross Beta. .......... ...... . . . . ........ . . 0.1 pCi/m 3 3

. . . . . . . . . . 1.0 pC1/m I-131 . . . . . . . . . . . . .

Cs-134 . . .... . . . . 0.31 pCi/m 3 Cs-137 ....................... 3.3 3 PCi/m 3

....................... 6.7 pCi/m Milk I-131 (low level) . . . . . . . . . . .... . . . . 1.09 pC1/1 Sr-89 . .................,.....

Sr-90 . ....................... 6.04 pCi/1 Cs-134 14.82 pCi/1 Cs-137 ....................... 20.0 pCi/1

....................... 23.0 pCi/1 Croundwater Cross Alpha .

Cross Beta. ..... . . . . . . . . .. . . . . . 12.0 pCi/1 H-3 . ..................... 33.8 pCi/1 Mn-54 ........................ 6700 pC1/1 Fe-59 . ....................... 330 pCi/1 Co-58 . ....................... 130 pCi/1 Co 60 . ....................... 330 pCi/1 2n 65 . ....................... 100 pCi/1 2r Nb-95 .......................

100 pCi/1

. . . . . . . . . . . 67 1-131 Cs 134 pCi/1 0.67 pC1/1 Cs-137 ....................... 10 pCi/1 Ba . La - 140 .......................

. 17 pC1/1

..................... 67 pC1/1 Food Products I-131 . . . . . . . . . . . . . . . . . . . . . . . .

Cs-134 0.1 pCi/g vet Cs-137 ....................... 0.33 pci/g vet

....................... 0.66 pC1/g wet Fish Cross Beta. . . . . . . . . . . . . . .... . .. . 10.8 Sr-89 . . pC1/3 wet Sr-90 . .... ...................... 3.3 pC1/g vet Nn-54 ... . . . . . .. .... .. . . 1.2 pci/g vet

....................... 10 pCi/g vet D-1

l Media and Nuclide Notification Level Fish (Continued)

Fe-59 .

co-58 .

. .... . . . . . .. . . . . . . . . . . . 3.3 pC1/g vet

. .... . . . . .. . . . . . . . . . . . . 10 pci/g vet Co-60 . . . ... . .. . ... . . . . . . . . . . .

2n-65 . . . . .

3.3 pCi/g wet Cs-134

. . . . . . .. . . . . . . . . . . . 6.7 pC1/g wet

. ... . . . . . ... . . . . . . . . . . . 0.33 pCi/g vet Cs-137

..... . . . . . .. . . . . . . . . . . . 0.67 pCi/g vet River Water Cross Alpha Sus .

Gross Alphs Dis . .. .. .. .. .. . . . . . . . . . . . . 22.0 pCi/1 Gross Beta Sus. . . . . . .... . . . . . . . . . .

... . . . . . . . . . . . 27.6 pCi/1 Cross Beta Dis. . . . . . ..... . . . . . . . . . 58.8 pCi/1 Sr-89 . 88.6 pCi/1 Sr-90 . ... .... . . . .. . . . . . . . . . . . 1000.0 pCi/1 H-3 . .

.. ... . . . . . . . . . . . . . . . . . . 100.0 pC1/1

. . ... . .. . . .. .......s . . . . 6700 Mn-54 . . .... .. . . ... pCi/1 Fe-59 . . . .. . . . . . . .. ........... 330 pCi/1

........... 130 pC1/1 Co-58 .

Co-60 . .. . . ... . . .. . . . ....... . . . . 330 pCi/1

.. . . . . . . .. ........... 100 Zn-65 . . . ... . . . . . .. pCi/1 Zr-Nb-95 . .. . . . . . . .. ... . . . . . . . . 100 pCi/1

. . . . . . . . 67 1-131 . . . . . . . . . . . . . .

Cs-134 .. .. . . . . . ... . . . . . . . . .

pCi/1 0.67 pC1/1 Cs 137 ........... 10 pCi/1

.. ... . . . . . . . ... . . . . . . . . 17 pCi/1 Ba -La -140 . .. .. . . . . ..

........... 67 pCi/1 Shoreline Sediment Co-60 . ...... . . . . ..

Cs-134 ....... . . . . 0.1 pCi/g dry Cs-137 .. ... . . . . .. . ... . . . . . . . . 0.75 pCi/g dry

. . .. . . . . . . .. . . . . . . . . . . . 0.75 pC1/g dry D-2

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AFFINDIX 5 Colf7ENTIONS USED IN DATA TRIND CRAFES

APPENDIX E Conventions used in Data Trend Graphs

1. The data trend plots are based on statistical summaries of Section VI.

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. Lowest levels of detection (LLD) are noted by a straight line on the graphs.

5. A typicalless-than value arising from delayed counting of short-lived isotopes (such as I-131 or Ba-140) or reduced sample size are omitted.

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AFFDfDIX F DETECTIOlf CAPABILITIES

DETECTION CAPABILITIES FOR ENVIRONMENTAL SAMPLE ANALYSIS-Radiochemical Methods lower Limit of Detection LLD*

Water (pC1/f) Milk (pCi/f) Air Part (pC1/m 3) Food Products Fish (pci/g Broadleaf Veretationb wet)

(pCi/g wet)

Quantity

0.4 f -

280 m3 0.1 g ash Ash Ut. Id - - -

4 a* 4.0 -

0.002 -

S' 1.4 -

0.003 0.25 Quantity 2f 1f -

3 g ash 7

w ash Ut. 1 - - -

4 Sr-89 1.08 2.02 -

0.03 Sr-90 0.93 1.39 -

0.03 Quantity -

12 280 m 8 20 g -

l I-131 -

0.78 0.05' O.05 -

l H-3 140 - -

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LLD - lower limit of detection based on 4.66sh; 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 a and B LLC's are for weightless sample. Self-absorption in sample will increase these LLD's. Typical increases will be factors in the renge 1 to 1.3 for p analysis and 1-5 for a analysis.

' Iodine collected Charcoal Cartridge air filter.

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'LLD = lower deviation the standard limit of d of te the ection based on background 4.66sbrate counting i & or where of sb is the counting rate of a blank sasple as apprdpriate (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 radionuclide determined by gamma-ray spectrometry, the background shall include the 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 unachlevable. In such cases, the contributing factors will be identified and Monitoring Program describedAnnualinReport.

the Environmental Radiation ,

Note:All LLD's which we require are listed in this table for Ge(Li) Gamma Spectroscopy. If any nuclide is detected, it shall be reported quantitatively whether or not it is one of the 20 nuclides listed above.

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LOWER LIMITS OF DETECT 103 (LLD) 0F ANALYSES tot ce (LI) DETECTCt LLD*

Milk, Water Food Products AirPag)t Fish, (pCi/kg wet) shoreline Sediment (pCl/2) (pCE/m (pci/kg wet) (pcl/kg dry) cuantity: 3 3.5 t 3600 m 400 g wet 200 a wet 600 g dry isotope Matf-tife se 7 53.2 d 78 0.05 311 1243 233 K 40 1.26x10' 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 kb-95 35.2 d 9 0.003 31 124 31 2r-95 65 d 9 0.005 47 93 78 tu-103 39.4 d 8 0.003 31 124 4T n Ru-106 368 d 62 0.03 311 8 1243 233 W I-131 8.04 d 9 0.003 31 60 31 Cs-134 2.06 y 9 0.003 31 60 47 Cs-13T 30.2 y 9 0.003 31 80 31 Ba 140 12.8 d 15 0.09 109 621 233 i 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 j aa-226 1600 y 100 0.08 200 800 109 I Th-228 1.91 y 31 0.01 93 466 109

LLO = tower limit of detection based on 4.66s h - and wherebs is the standard deviation of the background counting rate or of the counting rate of a 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 quantitles indicated and the background count rate in the absence of any radionuctides in the sample. In calculating the LLD for a radionuclide determined by gamma-ray spectrometry, the background shalt include the typical contributions of other redlo nuctides normally present in the eseptes (e.g., potassium 40 in milk samples).

i Occasionally background rendar these LLD's fluctuations, unavoidable saatt sample size, the presence of interfering nuclides, or other uncontrottable circumstances may unachievable.

Progrse Annual Report. In such cases, the contributing factors will be identified and described in the Environmental Radiation Monitoring stote: Att LLD's which we require are listed in this table for Ge(LI) Comma spectroscopy. If any nuclide is detected, it shstt be reported quantitatively whether or not it is one of the 20 nuclides listed above.

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APPENDIZ G SANPLE STATION LOCATIONS AND SAMPLE TYPES

t-COOPER NUCLEAR STATION LIST OF ACTIVE SAMPLE STATIONS 1996 Sample

Station (A) Samnle Descriotion -- Tyne and Location No. 1 Types (1) Air Particulate and Charcoal Filters (2) Environmental Thermoluminescent Dosimetry

, Location: Outside the northwest edge of fence, east of the gate to the LLRW storage pad on the CNS site, NWM, S32, T5N, R16E, Nemaha County, Nebraska.

No . 2 Typer (1) Air Particulate and Charcoal Filters (2) Environmental Thermoluminescent Dosimetry ;

Location: North side of county road access to the south portion of CNS ;

site approximately 275 feet west of the former Jefferson i Broady farmstead, SWM, S32, T5N, R16E, Nemaha County, NE. l No. 3 Type: (1) Air Particulate and Charcoal Filters (2) Environmental Thermoluminescent Dosimetry Location: Located on the north side of the Brownville State Recreation !

l Park access road near water gauging station, SEM, S18, T5N, R16E, Nemaha County, Nebraska.

i No. 4 Types (1) Air Particulate and Charcoal Filters l (2) Environmental Thermoluminescent Dosimetry Location: Located W mile south of Phelps City, Missouri, on west side of Highway aU", NEM, S2, T6 4.N , R42W, Atchison County, Missouri.

No. 5 Types (1) Air Particulate and Charcoal Filters i (2) Environmental Thermoluminescent Dosimetry Location: Located M mile south and M mile east of Langdon, Missouri, on north side of road, west of railroad tracks, SWM, S18, T64N, ,

R41W, Atchison County, Missouri.

No. 6 Type: (1) Air Particulate and Charcoal Filters (2) Environmental Thermoluminescent Dosimetry Location: one mile west of the end of Missouri State Highway "U", south side of road, SW corner of the intersection, NWM, S34, T64N, R42W, Atchison County, Missouri.

I No. 7 Typer (1) Air Particulate and Charcoal Filters (2) Environmental Thermoluminescent Dosimetry I

Location: 300 yards east of Highway 67 on north side of road, west of I Nemaha elevator, SWM, S6, T4N, R16E, Nemaha County, Nebraska. ,

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Samplo Station Sample Description -- Tvoe and Location No. 8 Types (1) Air Particulate and Charcoal Filters ;

(2) Environru ntal Thermolu"*inescent rosimetry ?

Location:- M mile north, M mile west and M mile north of Nemaha, on west side of road adjacent to Mark T. Moore Transmission Line, NEM, ,

S35, T5N, RISE, Nemaha County, Nebraska. i No. 9 Types (1) Air Particulate and Charcoal Filters (2) Environmental Thermoluminescent Dosimetry Location: Four miles north of Highway 136, on Highway 67 Then 1 mile east of Highway 67 and M mile north on west side of road, SWW, S26, T6N, R15E, Nemaha County, Nebraska. ;

No. 10 Types (1) Air Particulate and Charcoal Filters *

(2) Environmental Thermoluminescent Dosimetry ,

Location: One mile north of Barada, Nebraska, in SW corner of intersection, NEW, S14, T3N, R16E, Richardson County, NE. !

No. 11 Types (1) Water - Ground Location: Plant well water supply header at well pits, NWW, S32, T5N, '

R16E, Nemaha County, Nebraska.

No. 12 Types (1) Water - River Location: Sample (1) is taken from the Missouri River immediately upstream from the Plant Intake Structure (River Mile 532.5).

(During periods when unsafe conditions warrant, Station 35 may be used as an alternate upstream collection site.)

No. 20 Types (1) Environmental Thermoluminescent Dosimetry Location: On NNW boundary of NPPD property, approximately 20 yards east of county road, SEW, S30, TSN, R16E, Nemaha county, NE.

No. 28 Types (1) Water - River (2) Fish (3) Sediment from Shoreline Location: Samples (1) and (3) are taken from the Missouri River or its shore, below the Plant Discharge Flume near River Mile 530.

Sample (2) is taken from the Missouri River M to 3 miles downstream of the plant site.

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Srmplo Station Sample Descrintion -- Tvoe and Location No. 35 Types (1) Fish (2) Food Products - Broadleaf vegetation (3) Water - River (Alternate Site)

Location: Sample (1) is taken from the Missouri River about 1 to 3 miles above the CNS intake structure. Sample (2) is taken about M mile south of the Brownville State Recreation Area in Sector A. During periods when unsafe conditions warrant, Station 35 may be used as an alternate to Station 12 for sample type (3) .

6 No. 44 Types (1) Environmental Thermoluminescent Desimetry 1

Location: Two miles south of Auburn stoplight and M mile south of Auburn I Country Club on Highway 75, then W mile east of Highway 75 at !

fence line north'of county road, SEM, S27, TSN, R14E, Nemaha l County, Nebraska.

No. 47 Types (1) Water - Ground Location: At Falls City . municipal water supply well south of Rulo, 4 Nebraska, out of main header flow meter, SWM, S20, TIN, R10E, i

Richardson County, Nebraska. l No. 56 Type: (1) Environmental Thermoluminescent Dosimetry .

Location: 1-M miles SW of Langdon, Missouri, on Highway "U", on the !

right side of the highway (Bill Gebheart farm), NWM, S23, T64N, R42W, Atchison County, Missouri.

No. 58 Types (1) Environmental Thermoluminescent Dosimetry Location: Three miles south of Brownville, Nebraska, on county road, at ,

the SE corner of the intersection with the farm road leading to Sample Station No. 2, SEM, S31, T5N, R16E, Nemaha County, Nebraska, i

No. 59 Types (1) Environmental Thermoluminescent Dosimetry Location: One mile SSE of the CNS Elevated Release Point, 50 yards west of the levee at the south boundary of NPPD property, SEM, S32, T5N, R16E, Nemaha County, Nebraska.

No. 61 Types (1) Milk - Nearest Producer Locationt One mile west of Brownville, Nebraska, on Highway 136, then 1 )

mile north on the county road, turn right and proceed approximately H mile east, on south side of road (Raymond Gentert dairy), NWW, S13, T5N, R15E, Nemaha County, Nebraska. j No. 66 Types (1) Environmental Thermoluminescent Dosimetry l

Location: Two miles south of Nemaha, Nebraska, on Highway 67 - east side of road (Mrs. Lola Kennedy f arm) , NWW, S19, 74N, R16E, Nemaha County, Nebraska.

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Semple Station Sample Description -- Tvoe and Location No. 67 Type: (1) Environmental Thermoluminescent Dosimetry Location: 2 miles west of Brownville, Nebraska, on Highway 136, then north 1-M miles on county road and east M mile, on north side i of road (Walter Parkhurst f am), NEM, S11, T5N, R15E, Nemaha I County, Nebraska.

No. 71 Type: (1) Environmental Thermoluminescent Dosimetry Location: Two miles east of Phelps City, Missouri, on Highway 136, then south 1-M miles on county road and west M mile (Tom Boatman farm), SEM, S6, T64N, R41W, Atchison County, Missouri.

No. 79 Types (1) Environmental Thermoluminescent Dosimetry Location: 1-7/8 miles south of Brownville, NE, en east side of paved road, NPPD property, SEM, S30, TSN, R16 E, Nemaba County, NE.

No. 80 Types (1) Environmental Thermoluminescent Dosimetr/

Location: 2-1/8 miles south of Brownville, east sile of paved road, NPPD property, NEM, S31, TSN, R16E, Nemaha C'ounty, Nebraska.

No. 81 Types (1) Environmental Thermoluminescent Dosimecry Location: 2-3/8 miles south of Brownville, Nebraska, in the NE corner of the intersection of the paved county road and CNS access roa(1, NPPD property, NEW, S31, TSN, R16E, Nemaha County, Nebraska.

No. 82 Types (1) Environmental Thermoluminescent Dosimetry Location: 7/8 mile south of CNS in a field, on NPPD property, DW4, S32, TSN, R16E, Nemaha County, Nebraska.

No. 83 Types (1) Environmental Themoluminescent Dosimetry Location: 2-M miles south of Nemaha, Nebraska, on Highway 67, then east 1 mile to the junction of the driveway and county road (east side of drive, Leroy Kennedy) , NEM, S19, T4N, R16E, Nemaha County, Nebraska.

No. 84 Types (1) Environtr.antal Thermoluminescent Dosimetry Location: 2-M miles west of Brownville, Nebraska, south side of Highway 136 west vf Locust Grove School (Bruce L. Solie), NWM, S22, TSN, R152, Nemaha County, Nebraska.

No. 85 Types (1) Environmental Thermoluminescent Dosimetry Location: One mile east of Brownville, Nebraska, on Highway 136, then north M mile on the east side of the county road (Scott Leseburg), NEM, S33, T65N, R42W, Atchison County, Missouri.

G-5

1 Scmple Station Samole De3Criptinn -- Tvoe and Location No. 86 Types (1) Environmental Thermoluminescent Dosimetry Location: One mile west of Phelps City, Missouri, on Highway 136, then north 1-M miles on Highway "D" on west side (Mrs. Olin Harmes), SEM, S22, T65N, R43W, Atchison County,-Missouri.

No. 87 Types (1) Environmental Thermoluminescent Dosimetry Location: ' One mile west of Phelps City, Missouri, on Highway 136, south M mile on county road and W mile west on county road (to end of road, Robert Graf), SWM, S3, T64N, R42W, Atchison County, Missouri.

No. 88 Types (1) Environmental Thermoluminescent Dosimetry Locations One mile west of Phelps City, Missouri, on Highway 136, then south 2 miles at the end of the county road (David Meyerkorth), NWM, S11, 764N, R42W, Atchison County, Missouri.

No. 89 Types (1) Environmental Thermoluminescent Dosimetry 2-M miles south of Phelps City, Missouri, on Highway "U", then Location:

E mile west in the SE corner of the county road intersection (Gertrude Rosenbohm), NEW, S14, T64N, R42W, Atchison County, Missouri.

No. 90 Types (1) Environmental Thermoluminescent Dosimetry Lo::ation: 1-M miles west and M mile south of Langdon, Missouri, on Highway "U", then M mile west (Garth Green), SWM, S23, T64N, R42W, Atchison County, Missouri.

No. 91 Types (1) Environmental Thertnoluminescent Dosimetry Location: M mile west of Rock Port, Missouri, on the south side of the intersection of Hwy. 136 and Hwy. 275, at the water tower (Richard H. and Vicki Cook), NWM, S28, T65N, R41W, Atchison County, Missouri.

No. 94 Types (1) Environmental Thermoluminescent Dosimetry Location: M mile south of Langdon, Missouri, on the west side of the road (Max Peeler), NEW, S24, T64N, R42W, Atchison County, Missouri.

No. 96 Types (1) Food Products - Broadleaf Vegetation Location: Approximately 1 mile south of Brownville, Nebraska, along the paved road in the road ditch, in Sector R, SWM, S19, T5N, R16E, Nemaha County, Nebraska, s

G-6

l

.i' Simple Station Samole Description -- Tvoe and Location No. 99_ Types (1) Milk (Other Producer)

Location's 1-W miles south of Shubert, Nebraska, west side of Hwy. 67 (James Zentner dairy), NEW, S24, T3N, R15E, Richardson County, Nebraska.

No. 100 Types (1) Milk (Other Producer)

Location: Two miles south and 1 mile west of Shubert, Nebraska (Dick James dairy), SWW, S23, T3N, R15E, Richardson County, Nebraska.

No. 101 Types (1) Food Products - Broadleaf Vegetation Location: 5W miles east and H mile north of Rock Port, Missouri, near the junction of Highway 136 and Highway 59, in Sector D, encompasses portions of S19 and S30, T65N, R41W, Atchison County, Missouri.

No. 102 Typer (1) Food Products - Broadleaf Vegetation Locations 8 miles south of the Auburn, NE, stoplight on Highway 73-75, then approximately 2 miles east on the country road.

Encompasses portions of S25, S35, and S36, T4N, R14E, Nemaha County, Nebraska.

NOTES: (a) Sample Station numbers missing from the sequence are inactive or 4 discontinued Sample Stations. l

)

i

.G-7

a a-1 a y, e a - --w r.- y - -

t APPENDIX H

SUMMARY

OF DOSES TO A MEREBER OF THE PUBIJC OFF-SITE 1

l i

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l l

i w

)

b i.

a l l

l 1

l l

1 I

e

c ._ . _ _ . . . , .

Sussiary of Doses to Maximum Individual at the site Boundary, Resulting from Exposure to Radioactivity Discharged in Liquid Effluents, January-December 1996, Cooper Nuclear Station Dose to Individual, mrom Period and Total Pathway Skin Bone Liver Body Thyroid Kidney Lung GI-LLI Ist Duarter '2.23 E-05 2.50 E-03 8.72 E-04 1.04 E-03 1.90 E-05 2.45 E-04 9.04 E-05 3.63 E-03 2nd Ouarter 1.87 E-05 3.22 E-02 1.53 E-03 2.80 E-03 1.59 E-05 4.48 E-04 1.55 E-04 9.37 E-03 3rd Quarter 8.46 E-06 3.15 E-02 1.51 E-03 3.36 E-03 7.45 E-06 4.87 E-04 1.65 E-04 6.83 E-03

?

~

4th Ouarter 3.35 E-05 1.70 E-02 2.93 E-03 3.90 E-03 2.86 E-05 8.85 E-04 3.00 E-04 9.14 E-03 Totals for 1996 8.30 E-05 8.32 E-02 6.84 E-03 1.11 E-02 7.10 E-05 2.07 E-03 7.10 E-04 2.90 E-02

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

DOSES TO MANIMUM IM IVISUAL (MREMI, JANUARY-DECEfSER 1996 COOPER NUCLEAR STATIOtt JANUARY-DECEMBER 1996 SPECIAL LOCATION R I SITE DOUNDARY AT 3.67 MILES N PATHetAY T.900Y SI-TRACT DONE LIVER KIDNEY THYROID LUNG SKIN ADULT 2.5tE-92 2.45E-82 2.62E-92 2.59E-92 2.74E-02 7.19E-01 2.4eE-82 5.88E-92 TEEN 2.56E-82 2.46E-82 2.77E-02 2.7sE-82 2.94E-82 9.85E-el 2.41E-92 5.88E-92 CHILD 2.69E-82 2.44E-82 3.3eE-92 2.92f-82 3.26E-02 1.82E*99 2.41E-82 5.88E-92 INFANT 2.88E-92 2.42E-82 3.41E-02 3.51E-02 3.7tE-82 3.77E+te 2.40E-82 5.88E-82

I:

8 COOPER NUCLEAR STATION JANUARY-DECEMBER 1996 SPECIAL LOCATIost B 2 NEAR. RESIDENCE AT 0.99 MILES NW PATHWAY T.900Y GI-TRACT BONE LIVER KIDNEY THYROID LUNG SKIN ADULT 3.31E-02 3.30E-82 3.40E-82 3.35E-82 3.42E-02 3.38E-01 3.31E-82 7.75E-02 TEEN 3.34E-02 3.30E-82 3.49E-82 3.40E-82 3.51E-82 4.56E-91 3.31E-82 7.75E-82 CHILD 3.4eE-02 3.29E-82 3.81E-82 3.5tE-02 3.65E-82 8.28E-el 3.31E-42 7.75E-92 INFANT 3.48E-02 3.28E-82 3 74E-82 3.77E-82 3.85E-02 1.71E+89 3.31E-82 7.75E-82

- _ - _ _ _ _ _ _ _ - _ _ _ _ _ _ _ _ _ - - _ _ _ _ _ _ _ _ . _ _ _ _ _.-___.__---______--___c_. -. . .

APPENDIX I NON-REMP ANALYSES l

l 1

l i

a 4

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APPENDIX I Four water samples from the LL Waste Pad location were collected in 1996 and analyzed for gross alpha and gross beta suspended and dissolved and by gamma spectroscopy. These analyses are not part of the REMP.

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4 N OEONRUU1 SSAEEAH A A RRRR A E -

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ML20138C576

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