ML20095K026

Annual Environ Operating Rept for 1991. W/

ML20095K026
Person / Time
Site:	Callaway
Issue date:	12/31/1991
From:	Schnell D UNION ELECTRIC CO.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
ULNRC-2629, NUDOCS 9205040281
Download: ML20095K026 (149)

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Rucerwc. 7 g -April 30, 1992 U.S. Nuclear Regulatory Commission Document. Control Desk Washington, D.C. 20555 Gentlemen: ULNRC- 2629

~ -DOCKET NUMBER 50-483 CALLAWAY PLANT FACILITY OPERATING LICENSE NPF-30 1991 ANNUAL ENVIRONMENTAL OPERATING REFDRT i? Please find ent ;osed the 1991 Annual Environmental Operating Report for the Callaway Plant.

This report is submitted in accordance with Section 4 -6.9.1.6 of the Technical Specifications and Appendix B to

'the Callaway Plant Operating License.

Ve truly yours, m/

,[hlst '\ o Donald F. Sc nell NGS/plh Enclosure-e I

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Shaw,. Pittman,--Potts & Trowbridge~

N '2300 N.-Street, N.W.__

Washington,.D.C. 20037 Dr. J. O.- Cermak.  ;

CFA, Inc. . ,

18225-A Flower Hill Way_

Gaithersburg, MD: 20879 5334 -

3 R.~;C. Knop Chief,-Reactor Project Branch 1 U.S.l Nuclear Regulatory Commission '

RegioniIII ,

799 Roosevelt Road

Glen Ellyn, Illinois 60137

' Bruce Bartlett C

Callaway Resident Office (U.S. Nuclear. Regulatory Commission RR#1 Steedman,7 Missouri 65077-

-I . R. Wharton (2) (aerial-photo transpa- umaes and print s)

Office of Nuclear Reactor Regulation U.S._'huclear Regulatory Commission -

1 White Flint,-North, Mail-Stop 13E21 -- ;

j. 11555'Rockville. Pike .

Rockville, MD -

20852 Manager, Electric Department .

Missouri Public Service Commission

. P . O .-- -Box 3 6 0 Jefferson _ City, MO 65102-

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CALLA WA Y PLANT ANNUAL ENVIRONMENT 4L OPERATING REPORT 1991 f / #"

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CALL.4 WAY PLANT y i

ANNUAL ENVIRONMENTAL OPERATING REPORT 1991-i DOCKET NO. 50-483 A

TABLE OF CONTENTS Section: Title 1,0 Introduction

-2.0 Conclusion 13.0: . Radiological Environmental Monitoring Program 4.0- Non-Radiological Environmental Monitoring Program 5.0 Plant Modification Environmental Evaluation

1.0 INTRODUCTION

The Callaway Plant received an Operating License on June 11, 1984. This report presents the analytical data from the environmental monitoring programs with

• npropriate interpretation for 1991 and the environmental evaluations for p:. ant modifications completed during 1991.

The third section of this report summarizes and interprets the results of the radiological envirormental monitoring program conducted in accordance with Administrative Procedure APA-ZZ-01003, "OFFSITE DOSE CALCULAH ON MANUAL *, Section 9.11.

Section four describes non-radiological environmental monitoring and its results conducted in accordance with -

Section 2.2 of Appendix B to the Callaway Plant Operating License. The fifth section of this report describes changes in plant design or operation, tests, and experiments made in accordance with Section 3.1 of Appendix B of the Callaway Plant Operating License.

This Annual Environmental Operating Report is submitted in accordance with Section 6.9.1.6 of the Technical specifications and Appendir B to the Callaway Plant Operating License.

2.0 CONCLUSION

The third section of this report contains all the radiological environmental monitoring conducted in the vicinity of the Callaway Plant during 1991. The comparison of the results for_the radiological environmental monitoring conducted during 1991 to the a preoperational data and data from previous years of -

operation showed no unexpected or adverse effects from the operation of the Callaway Plant on the environment. .

The non-radiological monitoring conducted in the vicinity of the Callaway Plant during 1991 is contained in section four of this report. The monitoring conducted during 1991 showed no evidence of effects of drift from the cooling tower. The foliar disease found in the vegetation during 1991 could be directly attributed to nntural causes.

There were no plant r.odifications completed during 1991 with an unreviewed environmental question as shown in section five of this report.

SECTION 3.0 RADIOLOGICAL ENVIRONMENTAL MONITORING

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

l UNION ELECTRIC COMPAh"I ST, LOUIS, MISSOURI CALLAWAY PLANT RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM ANh"JAL REPORT 1991 1

1

CONTENTS Sent;ipj)_ TiO e . . . _ _ _ . pag 2 Abstract 1 1.0 Introduction 2 2.0 Radiological Environmental Monitoring 2 Program 2.1 Program Design 2 2.2 Program Description 3 2.3 Program Execution 17 2.4 Analytical Procedures 18 2.5 Program Modifications 21 ,

3.0 Isotopic Detection Limits and Activity 25 Determinations 4.0 Quality Control Program 27 3 5.0 Data Interpretations 27 6.0 Results and Discussion 28 6.1 Waterborne Pathway 28 6.2 Airborne Pathway 30 6.3 Ingestion Pathway 31 6.4 Direct Radiation 34 Appendix A: 1991 Land Use Census Al Appendix B: EPA Cross-check Results B1 Appendix C: Isotopic Detection Limits and Activity C1 Determinations Appendix D: Radiological Environmental Monitoring D1 Program Annual Summary Appendix E: Teledyne Isotopes Midwest Laboratory El Data Tables i

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TABLES Num1er 2 Title Engg .

I sampling Locations 6

-II Collection Schedule 12 III Detection Capabilities for Environmental 26 Sample Analysis

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FIGURES

_Fumber Tit 1e Eagg 1 Area Collection Locations - Map 4 2 Site Collection Locations - Map -5 iii

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Abstract This report presents the data obtained from analysis of environmental samples collected through the Callaway Plant Radiological Environmental Monitoring Program (REMP) in 1991.

Evaluation of radiation levels in the environs around Union Electric Company's (UEC) Callaway Plant entailed sampling at strategic points in various exposure pathways. The following fees of samples were collected and analyzed: milk, vegetation, 1

• ace water, well water, bottom sediment, shoreline sediment, fien, airborne particulates, airborne radiciodine, direct radiation (TLD) and soil. . _ .

Analytical results are presented and discussed along with other pertinent information. Possible trends and anomalous results, as interpreted by Union Electric Company personnel, are discussed.

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1.0 Introduction ,

This report presents an analysis of the results of the REMP conducted.during 1991 for Union-Electric _ Company, Ca31away Plant.

3 In complianceLwith federal and state regulations and in its

_ concern to maintain the quality of the local. environment UEC began _its radiological monitoring program in April,

^1982.

The objectives of the'REMP are to monitor potential critical pathways of radioeffluent to man and to determine

-radiological impact on the environment caused by operation of the_Callaway Plant.

The Callaway plant consists of one 1239 MWe pressurized water reactor, which achieved initial criticality _on October 2, 1984. _The plant.is located on a plateau approximately ten miles southeast of the City of Fulton in Callaway County, Missouri and approximately eighty miles west of the St. Louis _ metropolitan area. The Missouri River flows by the site _in an easterly direction approximately five miles south of the-site at its closest point. ,

2.0 Radiological Environmental Monitorina Program

1. l' Procram Design The purpose of the operational REMP-at-the Callaway Plant is to' assess the impact of plant operation on the environment.

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For- this purpose samples are collected f rom waterborne, airborne, ingestion and--direct radiation pathways. Sampling-media--are selected which are likely to show effects of plant effluents and which are sensitive to changes _in radioactivityLlevels. The types of sample media collected are: milk, surface water, groundwater,-shoreline sediment, bottom sediment, soil, fish, vegetation, airborne

' particulate, airborne radiciodine and direct radiation (TLD).

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-Samp1es are_ collected by' Union Electric personnel and shipped-to Teledyne-Isotopes Midwest Laboratory (TIML) for analysis._ TLD's are analyzed by Union Electric Personnel. The-data obtained are reported monthly and summarized in the annual' report.

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Environmental' sample locations are divided into two types,

' indicator and control. Indicator samples are those .

collected from locations which would be expected to manifest plant effects, if any. -Control samples were collected at -

1ccations which are expected to be unaffected by plant operation.

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2.2> _'Procram Description Sample locations for the REMP are shown.in. Figures 1 and-2.

1 Table;I describes the sample _ locations, direction and >

fdistance from the plant, which are controliand which are indicator locations,.and_the types of samples collected at ,

each location. Sample collection frequencies for each of the monitoring _ locations are given in Table II. The '

collections:and_ analyses that comprise.the program are

-describedLin the following pages.

Identification of sample type codes used in 7able I are as follows:

Code sample collected AIO Air Iodine APT Air Particulate AQF Fish AQS Sediment

-FPL' Leafy Green Vegetables

.IDM TLD MLK Milk SOL Soil

-SWA Surface Water WWA Ground Water

2.2.1 Waterborne Pathway Surface Water Monthly composite samples of surface water from the-Missouri River are collected from one indicator location _(SO2) and from one control location (SO1).

_Thel samples;are analyzed for_ gross alpha, gross beta, tritium, Strontium-89,' Strontium 90, and by gamma spectrometry.

Ground Water JGround water samples are collected monthly from two on-site' wells (F05 and F15) and one off-sate well used f or drinking . water (D01) . The on-site ground water samples are collected using a. manual grab sampler which

-isclowered into-the well. The off-site ground water '

sample is1 collected from.a faucet after allowing the line to-flush for two minutes. Ground water-samples

- are analyzed for gross alpha, gross beta, Tritium, Strontium-89, Strontium-90, and ganma emitting

, nuclides.

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C ALL AWAY PL ANT 5 M;LE A ADIUS R A DIOLOGIC A L SAMPLiHG NETWORK FIGU A E ? f 1

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TABLE-I SAMPLING LOCATIONS Location Sample Code Description Types 1**. - 11'mi NW, City Limits of Fulton on Hwy Z, 0.8 mi East of Business 54. IDM T2 6.6 mi NW; County Road'111,.0.6 mi South of Hwy UU,;Callaway Electric Cooperative Utility

- Pole No. 17571. IDM 3 1,3-mi NW; 0.1 mi West of Hwy CC on Gravel Road, 0.8 mi-South Hwy 0, Callaway Electric Cooperative Utility Pole No. 18559. IDM li 4',S3 1.3~mi N;0.3 mi East of the O and CC Junction, Callaway Electric Cooperative Utility Pole No. 18892. IDE APT,AIO 5,Al 1 3.mi'ENE;, Primary Meteorological Tower. IDM, APT,A10

.6 .2.0 mi W: County Road 428, 1.2 mi West of Hwy CC, Callaway Electric Cooperative Utility Pole No. 18609. IDM 7 1.3 mi S; County Road 459, 2.6 mi No"th of Hwy 94, Callaway Electric Cooperative Utility Pole No. 35097 IDM q, .8, 2.9-mi.S; County Road 459, 1.4 mi North of E Hwy-94,--Callaway Electrical Cooperative Utility Pole No. 06823. 'IDM=

9 -3.7 mi S; IM Side of the County Road:459 and.94 Junction, Callaway Electric Cooperative

' Utility Pole No. 06754. IDM

10.  ; 4.0 mi SSE; Hwy 94, 1.8 mi East of County Road 459, Callaway Electric Cooperative Utility

- Pole No. 11182. IDM

. '11 ' 4.8 mi.3E; City of Portland, Callaway Electrit.

Cooperative Utility Pole No. 12112. IDM

'12 5.3 mi SE; - Hwy 9.4 , 0.6 mi South of Hwy D, j Utility Pole on East side on Hwy. IDM 13 5.6 mi ESE; Hwy 94m 0.75 mi East of Hwy D, Kingdom Telephone Pole No. 2X1. IDM l: 6 r

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TABLE I (Cont'd.)

SAMPLING LOCATLQEE 1-Location Sample Code Description __ Types 141 5.0 mi ESE; SE Side of Intersettion D and 94, Callaway Electric Cooperative Utility Pole No. 11940. IDM 15 4.2 mi ESE; Hwy D, 2.5 mi North of Hwy 94, Callaway Electric Cooperative Utility Pole No. 27379. IDM 16 4.1 mi ENE; Hwy D, 3.6 mi' North of Hwy 94, Callaway Electric Cooperative Utility Pole No. 12976. IDM

'17 4.0 mi E; County Road 4053, 0.3 mi East of Hwy 9 4 , Kingdom Telephone Company Pole No. 3X12. IDM

-18: 3.8 mi ENE; Hwy D, 0.4 mi South of O, Callaway-Electric Cooperative Utility Pole No. 12952. IDM 19 4.2 mi NE; Hwy D, 0.3 mi North of Hwy 0, Callaway Electric Cooperative Utility Pole No. 12918. IDM 20 4.8 mi NE; City of Readsville, Callaway Electric Creperative Utility Pole No.

12830. IDM 21: '4.0.mi NNE;-County Road 155, 1.9 mi North of Hwy 0, Callaway Electric Cooperative Utility Pole No. 19100. IDM 22 2.5 mi NNE; County Road 150, 0,5 mi North of HwyJO, Callaway Electric Cocperative Utility Pole No.'19002.

.23 6.7 mi NNE; City of Yucation, Callaway Electric Cooperative' Utility Pole No. 12670 IDM 24 7.0 mi NE; County Road 191, 2.1'mi. North of Hwy K, Callaway Electric Cooperative Utility Pole No. 12498. IDM 25 8.7 mi E; County Road 289, 0.3 mi South of County Road 287, Callaway Electric Cooperative Utility Pole No. 11295. IDM 7

.~ . . - - .~. . - . .

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TABLE I (Cont'd.)

SAMPLING LOCATIONS

-Location Sample Code Descript;j en Types  ;

, _26 12.1 mi E; Town of Americus, Callaway IDM Electric Cooperative Utility Pole No._11159.

27 9.5.mi ESE; Town'of Bluffton, Callaway- '

Electric Cooperative Utility Pole No. 11496. .IDM 28- 3.3 mi SE; County Road 469, 2.0 mi North of Hwy.94, Callaway Electric Cooperative Utility Pole No. 06896. IDM 29 2.7 mi SSW; County Road 448, 1.2 mi North of County' Road 459,- Callaway Electric Cooperative ,

Utility Pole No. 06851. IDM '

30 4.6 mi SSEt W side of-County Road 447 and 463 JunctiCn, Kingdom Telephone-Company-Pole No. 2K1. IDM 31 7.6 Mi SW; _ City of Mokane, Callaway Electric Cooperative Utility Pole No. 06039. IDM d 32' 5.4 mi WSW; Hwy VV, 0.6 mi West of County

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Road 447, Callaway Electric _ Cooperative

, Utility Pole No. 27031. IDM .

33 7. 3 mi li; City of Hams Prairie, _SE of Hwy C and AD Junction. IDM

-34** 9.7 mi WNW; NE~ Side of Hwy C'and. County Road 408 Junction. IDM 4

53 5 - 5.8 mi'NNW; City of Toledo,-Callaway Electric Cooperative Utility Pole No. 17684. IDM 36 5L.2 mi N; County Road 155, 0.8 mi South of

' County Road 132, Callaway Electric Cooperative UtilityjPole No. ?9137. IDM J37 :0.7 mi SSW; County Road 459, 0.9 mi South of Hwy CC, Callaway Electric Cooperative Uti).ity Pole No. 35077. IDM 8

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TABLE I (Cont'd.)

' SAMPLING LOCATIONS Location Sample Code Descript ion __ Tyoes 38 4.8 mi NNW; County Road 133, 1.5 mi South of Hwy UU, Callaway Electric Cooperative

' Utility Pole No. 34708. IDM 39 5.4 mi NW; County Road 112, 0.7 mi East J of County Road 111, Callaway Electric Cooperative-Utility _ Pole No. 17516. IDM 40 .4.2-mi WNW; NE Side of County Road 112 and Hwy-0, Callaway Electric Cooperative Utility Pole No.-06326. IDM 41 4.8 mi W; Hwy-AD, 2.8 mi East of Hwy C, 4 Callaway Electric' Cooperative Utility 6., Pole No. 18239. IDM 42 4.4 mi SW; County Road 447, 2.6 mi North of County _ Road 463, Callaway Electric Cooperative Utility-Pole No. 06326. IDM 43' O.5 mi SW; County Road 459, 0.7 mi South-of Hwy CC, Callaway' Electric Cooperative Utility Pole No. 35073. IDM 44 1.7 mi_WSW; Hwy CC, 1.0 mi South of County Road 459, Callaway Electric Cooperative Utility-Pole No. 18769. IDM 45_ 1.0 mi WNW: County Road 438, 0.1 mi West of Hwy CC, Callaway Electric Cooperative Utility Pole No. 18580. IDM 46~ 1.5 mi NNW; NE. Side of Hwy CC and County Road 466 Intersection, Callaway Electric Cooperative Utility-Pole No. 28242. IDM 47 0.9 mi NNE; County Road 448, 0.9 mi South of Hwy.0, Callaway - Elect ric - Cooperative Utility _ Pole No. 28151. IDM

48 0.4 miLNE; County Road 448, 1.5 mi South of Hwy 0, Plant Security Sign Post. IDM

49. 1.7 mi E; County Road 448, Callaway Electric Cooperative Utility Pole No. 06959, Reform Wildlife Management' Parking' Area. IDM T

9

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. TABLE I (Cont'd.)

SAMPLING M)CATID&9 Location Sample Code-- Description Types 50 -0.9 mi SSE; County Road 459, 3.3 mi North of Hwy 94, Callaway Electric Cooperative Utility Pole No. 35086. IDM 51 0.7 mi SE; Located in the "Y" of the Railroad Spur, IN of Studge Lagoon. IDM s 52 0.4'mi ESE; Light Pole Near the East Plant Security Fence. IDM A7** 9.5 mi NW; C. Bartley Farm APT,AIO 0.9 mi NNE; County Road 448, 0.9 miles AB South of Hwy O. APT,AIO-

-A9 1.7 mi NNW; Community of Reform APT,AIO

-D01. 5.1 mi_SE; Holzhouser Grocery Store / Tavern (Portland, MO). WWA F05 1.0 mi SSE; Onsite Groundwater Monitoring Well. WWA F15 5.5 mi NE; Onsite Groundwater Monitoring Well. WWA M1** 12.3 mi WSW: Green's Farm. MLK

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M5 3.1 mi NW; Schneider Farm. MLK V3**- 15.0 mi SW; Beazley Farm. FPL, SOL V6 1.8 mi NNW; Becker Farm. FPL V7 1.8 mi N; Meehan. FPL A** 4.9 mi SSE; 0.6 River Miles Upstream of Discharge North Bank. AQS,AQF C 5.1 mi SE; 1.0 River Miles Downstream of Discharge North Bank. AQS,AQF 10 i i

. TAD 1F_l- (Cont ' d . )

SAMPLING LOCATIONS

-Locat' ion Sample i

'Codt .,_ Descrintion Tvoes '

S0l** 4.8 mi SE; 84 feet Upstream of Discharge

- North-Bank. SWA {

- SO2. 5.2 mi SE; 1.1 River Miles Downstream of Discharge North Bank. SWA Fi 0.98 mi S; Callaway Plant Forest Ecology Plot F1. SOL F2 1.64 mi SW; Callaway Plant Forest Ecology Plot F2, SOL LF6 1.72 mi NE; Callaway Plant Forest Ecology Plot F6. SOL

'F8 l'.50 mi NE; Callaway Plant Forest Ecology Plot F8. SOL

-. F9 - 1 45 mi NNW; Callaway Plant Forest Ecology .

Plot F9. SOL PR3: 1 02 mi-ESE; Callaway Plant Prairie Ecology 1

Plot'PR3. SOL-PR4' 1.34-mi- ESE; Callaway' Plant Prairie Ecology Plot PR4, SOL-PRS 1.89 mi NE; Callaway Plant Prairie Ecology Plot PR5. SOL PR7 0.45 mi NNW; Callaway Plant Prairie Ecology

' Plot PR7. SOL PR10- -1.55 mi NNW; Callaway Plant Prairie-Ecology Plot PRIO SOL

• All distances are measured from the center line of the reactor

-'** Control locations 11

TA'*tE !!

COLLECTION SCHEDUtg Air' , Air Vell Surface Cottection site Particulates _Radiciodine Va_ lei W

.ater Sediment fish Milk Vegetation Soit' A1,'Prieary Metrorological. U W Tower A7, C. Bartley Farm .W W A8, Count y Rd. 448, 0,9 mi t es W W-South of Hwy 0 A9, Commur.ity of Ref orm W W'

.B3, 0,6 miles East of 0 and CC Junction W W 001, Holzheuser Grocery 0

$ Store / Tavern F05, onsite Groundwater C Henitoring Weli F15, onsite Groundwater e Monitoring Mell M1, Green's Farm SM/M MS, Schneider Farm SM/F Q: Quarterly Vzucekly . MrMonthly SM/M= Semi Monthly when rows are on Pasture, Monthly otherwise A= Annually SA = Semi Annually

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

TABLC II (Cont'd.)

- Cot.ttCTION SCCC@ts t '

, Air Air Wett Surface Cottection Site _Particutetes _Radiolodine Water Vater sedimeni ' Tish . Milk veSetation .- Sei t V3, Beazley Farm M A'.

V6 .Becker Farm M V7, Meehan Farm M A,0.6 River miles Upstream $4 SA of Discharge North Bank C,1.0 River miles Downstream of Discharge North Bank SA SA S01, 84 feet Upstream C 'of Discharge North Bank M S02, 1.1 River miles Downstream of Discharge North Bank M F1, Cattaway Plant forest A Ecology plot F1 F2, Callaway Plant Forest Erology Plot F2 A 0= Quarterly W Weekly MtMonthly SM/M Semi Monthly when cows are on Pasture, Monthly otherw!se A= Annually SA = Semi Annually 1

4 T' TT M - e

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1080E II (Cont'd.)

CottECTIO U C4CDULE Air Air Vett Surface Water  ?!diment Fish Milk Vegelation Seit Cottection Site Particulates_. _R_adioiodine _ Water A

F6, Callaway Plant Forest Ecology Plot F6 F8, Cattaway Plant forest A Ecology Plot F8 A

F9, Cat taway Plant Forest Ecology Plot F0 PR3, Callaway Plant Prairie g Ecology Plot PR3 PR4, Callaway Plant Prairie A Ecology Plot PR4 d

PRS, Callaway Plant Prairie A Ecology Plant PRS PR7, Cattaway Plant Prairie A Ecology Plot PR7 l

PRIO, catt way Plant Prairie A Ecology Plot PRIO A= Annually SA = Semi Annually 0:ouarterly W Weekly MrMonthly SM/Me$cei Monthly when cows are on Pssture, Monthly otherwise

Bottom Sediment Bottom sediment samples are collected semi-annually from one indicator location (C) and one control location LA) . The samples are taken from water at least 2 meters deep to prevent influence of bank erosion. A Ponar dredge is used to obtain the samples, all of which consisted of the uppermost layer of sediment. Each sample is placed, without prese rva t ive ,

in a plastic bag and sealed. Bottom sediment samples are analyzed for gross alpha, gross beta, Strontium-89, Strontium-90, and gamma isotopic.

Shoreline Sediment Shoreline sediment samples are collected semi-annually at the same locations as bottom sediment. The samples are collected within two feet of the waters edge and "

consist of 2 six inch diameter by two inch deep sediment plugs. Each sample is placed in a plastic bag and sealed. Shoreline sediment samples are analyzed for gamma isotopic.

2.2.2 Airborne Pathway Airborne Particulates Airborne particulate samples are collected on a 47mm diameter glass fiber filter type A/E (99 percant removal efficiency at i micron particulate) <

volumetric rate of one and one half cubic f et minute at five locations. The particulate fil are collected weekly and shipped to TIML for ans ;ses.

The filters are analyzed for gross beta activity -

approximately five days after collection to allow for decay of naturally-occurring short-lived radionuclides.

Quarterly composites of filters by location are gamma-scanned and analyzed for Strontium-89 and Strontium-90. Four of the five locations are indicator locations LA1, AB, A9, and B3) and one location is a control location LA7). One of the indicators (A9) is located at the community with the highest D/Q.

Airb2rne Iodine Each air sampler is equipped with a charcoal cartridge in-line after the particulate filter holder. The charcoal cartridge at each location is collected at the same time as the particulate filter and analyzed for Iodine-131 within eight days af.ter collection.

15

2-2.3-

. Incestion Pathway Milk-

-Two gallon milk' samples are-collected semi-monthly .

during the pasture season (April through September) and monthly during the winter from one-indicator location

_(MS). and one control location (M1.) . The indicator location supplies. goat's milk and the control location

-supplies cow's milk. The milk samples are shipped-in ice chest to be received by TIML within 48 hourc of collection. Analyses for. Iodine-131, elemental calcium, Strontium 89, Strontium-90, and gamma emitting nuclides are performed on all milk samples.

ELSh The five most abundant fish species are collected semi-annually from one indicator location (C) and one control location (A). The fish samples are filleted and theffillets are analyzed for gross alpha, gross beta, Strontium-89, Strontium 90 and gamma isotopic.

Vecetation Monthly, during the growing season, green leafy vegetation is collected from two indicator locations (V6 and V7) and.from one control location (V1). '

Vegetation samples consist of mustard greens, turnip

. greens,. cabbage, lettuce, and spinach. The vegetation samples are analyzed for gross alpha, gross beta, Iodine-131, and'by gamma spectrometry.

S_Qil Once a year soil samples are collected from ten indicator locations (F1, F2, PR3, PR4, PRS, F6, PR7, F8, F9 and PR10) and one control location (V3). To

"~

ensure that only the most-recent deposition was sampled, only the uppermost two-inch layer of soil was taken *t each location. Sampling consist of 2 six inch square soil plugs. The-litter at the surface and the root rat is considered part of the sample. Tne samples are_placed in plastic bags and sealed. Each soil sample'is analyzed =for gross -Ir a, gross beta, and gamma isotopic.

i 16

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

?,

L6 l t

2.2.4 Dirggt Radiating  !

1 Thermolurrd nes cent Desimetry  !

l Thermoluminescent Dosimetry (TLD) are employed to ,

~ determine direct radiation levels in and-around the Callaway site. Fanasonic model UD-814 TLD's sea? td in  !

p antic bags;are placed in polypropylene mesh j cy;.indrical holders at fifty two locations and  !

exchanged quarterly and annually. Fifty of the fifty l two locations are indicators (2 through 33 and 35 1

through 52) and two locations are controls (1 and 34).  ;

2.3 Procram Executian [

The pregram was executed as described in the preceding .

section with the following exceptions;

1. .No milk samples were available from location MS.during  ;

the months of January, February, FL -h, and April.

Goats were not producing during the nonths.

2. The_well water samples from locations F05 and FIS were i not collected-in January due to loss of the well  !

sampler in one of the wells.

3. The_ downstream surface water composite sampler (S02) j was inoperable from 12/19/90.to 02/12/91 due to a frozen sample line._ Daily grab samples were taken while the composite sampler was out of service.

4. The_ air particulate and' airborne' iodine sample  !

results from location A7 for the collection period i mnding 01/17/91 ~ are questionable because the sampler flow rate was below the required 1.5 CFM when the sample was collected. ,

1

5. Fish samples-from location A and T were not collected during January because of adverse river and weather conditions.

1

6. There was no direct radiation data from Location 40 for the first quarter because of vandalism to the TLD station.  ;

t 7s The downstream surface water compocite sampler (S02) .

was-inoperable from.05/3.4/91 to C7/05/91 due to a silted over e spler inlet and a failed pump. Daily grab. samples are taken while the composite sampler was

=

out of service.

17 4

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

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

i 8 .. The air particulate and airborne iodine sample results from location A8 for the collection periods ending 07/18/91 and 07/25/91 are questionable because the sampler power was not on during the entire sampling period. The sampler hour meter showed the sampler had operated for 35 hours4.050926e-4 days <br />0.00972 hours <br />5.787037e-5 weeks <br />1.33175e-5 months <br /> and 141 hours0.00163 days <br />0.0392 hours <br />2.331349e-4 weeks <br />5.36505e-5 months <br />, respectively.

9. The upstream surface water composite sampler (801) was I inoperable from 07/09/91 to 08/13/91 due to a '

-malfunction of the sampling equipment. Daily grab samples were taken while the composite sampler was out of service. <

10. There were no air particulate or airborne iodine -

samples from Al for the coilection period ending I 10/16/91 due to a malfunction of sempling ecuipment.  ;

11.

No green leafy vegetation samples were available from .

location V6 and V7 during September due to lack of plant growth.

12. The upstream surface water composite sampler (S01) was out of service from 10/09/91 to 11/23/91. Daily grab o

samples were taken while the composite sampler was inoperable.

13. The data for the annual TLD's for locations 11 and 30 ,

was-lost due to vandalism of the TLD station.

2.4 Analytical Procedures i

Analytical procedures and counting methods employed by the contractor Laboratory follow those recommended by _

~the U.S. Public Health Service publication, Radicaggay. ,

Procedures for Environmental Samples, _ January 1967;_and' i

the-U.S. Atomic Energy Commission health and Safety Laboratory, RASL Procedures Manual, (HASL-300), 1972.  ;

A synopsis of the routinely used analytical procedures ~

for sample analyses-is presented belcw. ,

2.4.1 M.rtnrps.

2.4.1.1 ,Gr2gp Beta The_ glass _ fiber filter type A/E (99_ percent removal efficiency at ? micron _particul' ate),- is placed into a- i stainless steel planchet and counted for gross beta radioactivity using a proportional counter.

18

/

u

--, ---,, - - ,m . - . ~ . . . . . _ . _ . . . . _ _ - . _ - _ _ _ _ - . . . . . _ _ _ , . . . _.n .--m-, ...-..--,m...,_ - . - - - - , - . - - . = . . -

j 2.4.1.2 Gamma Spect romet rv The filters are composited according to station and counted using a germaniam detector which is coupled to a computer based, multi-channel analyr.er. The resulting spectrum is then analyr.ed by the computer and specific nuclides, if present, identified and quantified.

2.4.1.3 Stront, int 89 and Strontium-90 The composited filters, with stable strontium and barium carriers added, are leached 4.n nitric acid to bring deposits into solution. After filtration, filtrate is reduced in volume by evaporation. The residue is purified by adding iron and rare earth carriers and precipitating them as hydroxides. After a riecond strontium nitrate precipita'; ion f rom nitric acid, the nitrates are dissolved in acid again with _

added yttrium carrier and are stored for ingrowth period, the yttrium is precipitated as hydroxide and separated from strontium with the strontium being in the supernate. Each fraction is precipitated separately as an oxalate (yttrium) and carbonato (strontium) and collected on a No. 42 (2.4 cm) Whatman filter. The filters are counted using a low background proportional counter and the Strontium 90 activity is calculated from the oxalate data. The Strontium-89 activity is determined by subtracting the previously calculated Strontium-90 activity from the measured gross strontium activity calculated from the carbonate.

2.4.1.4 Iodine-131 Each Charcoal cartridge is placed on the germanium detector and counted. A peak of 0.36 MeV is used to calculate the concentration at councing time. The equilibrium concentration at the end of collection is then calculated. Decay correction between the end of collection period and the counting time is then made.

2.4.2 Direct RadiatiGD Direct radiation measurements are taken by UEC using Thermoluminescent Dosimeters (TLD's). The UEC program employs the Panasonic Model UD 814 TLD and Model UD-710 automatic dosimeter reader. Each dosimeter consists of three elements of CaSO :Tm and one element of Li B O Cu. The dosimbters are sealed in a moisture re$ikt3n: t plastic bag and placed inside a polypropylene 19

mesh cylindrical holder in the environment. After exposure in the environment the cosimeters are read and the exposure.for the time period is determined from the CaSO :Tm elements. The Li B 4O Cu element is ..ot used to dhtermine exposure duribg r3u: tine operations.

2.4.3 Veaetation 2.4.3.1 Iodine-131 ,

A suitable aliquot of wet (as received) sample is placed into a standard calibrated container and counted using a germanium' detector which is coupled to a computer based,. multi-channel analyzer. A peak of 0.36

.MeV is used to calculate the concentration at cour. ting time. The equilibrium concentration at the end of collection _is calculated _by decay correcting between the en0 of the collection period and'the counting time.

2.4.3.2 -Gross-Alnha and Gross Beta .

i A suitable aliquot of ashed sample is transferred to a

-two-inch ringed planchet. The planchet 11s counted for gross alpha and gross beta activity using a

-proportional counter.

-2.4.3.3 Gamma Snectrometry:

A suitable aliquot:of wet (as received) sample is placed-into a standard calibrated container-and ,

specific nuclides, if present, identified and quantified using a germanium detector.which is coupled to a computer. based, multi-channel analyzer.

2.4.4 Milk

2.4.4.1 Igd 1EE Two liters of milk containing standardized Iodine carrier are stirred with anion exchange resin for one hour. The resin is washed.with NAC1 and the iodine is eluted with sodium'hypochlorite. Iodine in the iodate form is reduced to I and the elemental iodina extracted'into CC1 ,2back-extracted into water, then precipitated as pafladium-iodide. The precipitate is counted'for I-331 using a proportional counter.

20

m.~___-._ _ . _ .. ...__ __ _ . _ _ - _ _ _ _ _ _ _ . _ . _ _ -

2.4.4.2 Strontium 89 and Strontium 90 One liter of milk containing strontium and barium carriers is passed through a cation-exchange resin j column.  !

I Strontium, barium and calcium are eluted from the cation-exchange resin with sodium chloride solution.

Following dilution of the eluate, the alkaline earths are precipitated as carbonates. The carbonates are then converted to nitrates, and strontium and barium nitrate are precipitated. The nitrate precipitate is dissolved, and barium is precipitated as the chromate, purified as the chloride, and then counted to determine  ;

the Barium-140 (if required) . From the supernate,  !

1 strontium is-precipitated as the nitrate, dissolved in water and reprecipitated as strontium nitrate. The  ;

nitrate is converted to the carbonate, which is '

filtered, weighted to determine strontium carrier i recovery, and counted for " total radiostrontium

• using a proportional counter.

After counting total radiostrontium the second time after six to eight days, Sr-89 concentrations are calculated. If the Sr-89 concentration shows a positive result,'the precipitate is dissolved, yttrium carrier added and the sample is stored for six to eight

• days to-allow for additional yttrium ingrowth. Yttrium is ceparated-from strontium, precipitated as yttrium .

oxalate and counted to determine Sr-90 concentrations.

~

The concentration of Sr 89 is calculated as the difference between the activity for " total radiostrontium" and the activity due to Sr 90.

2.4.4.3 Gamma Spectror etry 3.5 liters or 500 ml aliquot of milk is placed in a standard counting container and specific nuclidas identified and. quantified using a germanium detector-  :

which is coupled to a computer based, multi-channel analyzer.

I 2.4.4.4 E12Eental Ca3Sium I

Strontium, barium, and calcium are absorbed on the cation-exchange resin, then cluted with sodium chloride solution. . An aliquot of the eluate.is diluted to reduce the high sodium ion concentration. From this diluted aliquot, calcium oxalate is precipitated,

- dissolved in dilute hydrochloric acid, and the oxa' late is titrated with standardized potassium permaganate.

21 v - - ..m g- - p-+=em#rs =#, e,..e-p --#=-ee , - n o ,e . q -c.,. r-,y-' w w y' m 'yy m ;y ,-w,.r g gy-vy v y.ar w -T vwe w

• y- -P ry v' W vre +vwe--m-m-e e v- sm-c.y ey, e-p-

l . "i 't or dLQ fjfaf .GrcJnd._b'ater 4.4 9,4 ' c,4; Mpha and Gross Beta A suitable aliquot of water is evaporated to dryness and the residue transferred to a tarred planchet. The planchet is counted for gross alpha and gross b2ta activity using a proportional counter.

- 2.4.5.2 - Tritium A 60-70 ml aliquot of the water _ sample is purified by distillation, a portion of the dictillate is transferred to a counting vial and the scintillation fluid added. The contents of the vial are thoroughly -

mixed and counted in a liquid scintillation counter.

2.4.5.3 Strontium-89 and Strontium-90 The acidified 1 liter-sample of clear water with stable strontium, barium, and calcium carriers is treated with oxalic acid to_ precipitate insoluble exalates. The cxalates are dissolved in nitric acid, and strontium nitrate is separated from calcium as a precipitate in nitric acid.- The residue is purified by adding iron- 3 and rare earth carriers and precipitating them as hydroxides. After a second strontium nitrate

-precipitation from nitric acid, the nitrates are dissolved in acid with added yttrium carrier and are stored for ingrowth of yttrium 90.- The yttrium is again precipitated as hydroxide and separated from strontium with'the strontium being in the supe rnate . Each fraction is precipitated separately as-an oxalate (yttrium) and carbonate--(strontium) and collected on-No. --

(2.4 cm) Fl. tman filter for counting using a low background proportional counter. The Strontium-90 concentration is determined from the yttrium oxalate counting results and the Strontium 89 concentration is calculated as the difference between the strontium carbonate activity and the activity due to Strontium-90.

-2.4.5.4 Gpmma Spectrometr_y 3.5 liters or 500 ml aliquot of the_ water sample is placed in a standard counting container and specific nuclides identified and quantified using the Method described in Section 2.4.1.2.

22

2 . 4 . f. Fish 2.4.6.1 Gross Alpha and Gross Beta A suitable aliquot of ashed fish sample is transferred to a two inch ringed planchet. The planchet is counted for gross alpha and gross beta activity using a proportional counter.

2.4.6.2 _ Strontium 89-and Strontium-9Q A suitable aliquot of ashed sample transferred to a l 250 ml beaker and strontium yttrium carriers added. ,

The Sample is leached in nitric acid and filtered. '.

After filtration, filtrate is reduced in volume by evaporation. The residue is purified by adding iron and rare earth carriers and precipitating them as hydroxides. After a-second strontium nitrate precipitation from nitric acid,-the nitrates are dissolved in acid again with added yttrium carrier and are stored for ingrowth or Yttrium-90. The yttrium is precipitated as hydroxide and separated from strontium with the strontium being in the supernate. Each fraction is precipitated separately as an oxalate

~(yttrium) and. carbonate (strontium) and collected on No. 42 (2.4 cm) Whatman filter for' counting using a low background proportional counter. The Strontium-90 concentration is determined from the yttrium oxalate counting results and the Strontium-89 concentration is calculated as the difference between the strontium  ;

carbonate activity and the activity due to Strontium-90.

2.4.6.3 Gamma spectrometry A suitable' aliquot of prepared sample is placed in standard calibrated container and specific-nuclides identified and quantified using a germanium detector which is coupled to a computer based, multi channel.- r analyzer.

2.4.7 Bottom and Shoreline Sedimean 2.4.7.1 Gross Aloha and Gross Beta A snitable aliquot of ashed sample'is transferr'ed to a two-inch ringed planchet. The planchet is cour..ted f or gross alpha and gross beta activity using a proportional counter.

9 23

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

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

i i

l

- 2.4.7.-2 ELIpyl.111m 89 and Strontium 90 A suitable aliquot of ashed sample transferred to a 250 l ml beaker and Strontium Yttrium carriers added. The ]

sample is leached in nitric acid and I.ltered. After i filtration, filtrate is reduced in volume by 1

evaporation. The residue is purified by adding iron and rare earth carriers and precipitating them as )

hydroxides. After a second strontium nitrate i precipitation from nitric acid, the nitrates are l dissolved in acid again with added yttrium carrier and i are stored for ingrowth of-Yttrium-90. The yttrium is i precipitated as hydroxide and separated from strontium with the strontium being in the supernate. Each traction is precipitated separately as an oxalate (yttrium) and carbonate (strontium) and collected on l No. 42 (2.4 cm)-Whatman filter for counting using a low I background proportional counter. The Strontium-90 .

concentration is determined from the yttrium oxalate couating results and the Strontium-89_ concentration is i calculated as the difference between the strontium carbonate activity and the activity due to Strontium-90.

- 2.4.7.3 Camma Soectrometry -

A suitable aliquot-of prepared sample is placed in  !

standard calibrated container and specific nuclides identified and quantified using a germanium detector ,

which is coupled to a computer based, multi-channel '

analyzer. '

. 2.5 Program _.Modificat ions During-March of this year several modifications were made to the monitoring program. These changes resu ted from the National Po)1utant Discharge Elimination System Permit-renewal issued to the

' Callaway Plant by Missouri on March 15, 1991. The

- changes are: ,

24

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

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

4

.1) -The surface water grab aample from location S03 I (near the St. Louis City water intake) was deleted from the program.

l

2) The ground-water sample collection frequency i was-changed from monthly to quarterly. j

3) 'Washload and_bedload sediment sampling was i deleted from the program.  !

4)_ The sample _ collection frcquency'for bottom ,

samples was changed from quarterly to semi annual and sample location D was ,

deleted. i

5) Fish sample collection frequency was-changed l to-semi-annually and sample location D was deleted.-

3.0 Isotopic Detection Limits and Activity-Determinations A discussion of the calculations used in determining detection 11mitsLand activity by theLContractor i

< Laboratory is found in Appendix C. j Table-III gives1the required _ detection limits for

. radiol.Jical environmental sample analysis. For each sample type,-the-table. lists the detection' level for

-each isotope. ,

25

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n e

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I a

S S ) e Y T t m -

L C e -

A U w e N D r A. Om a R k E P / C n G h L f A 6 S c P D C i M O c h A O ( w S T s

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9

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• 2a

4.0 -Quality control Procram. -!

To insure the validity of the data, the contractor laboratory maintains a _ quality control (OC) program which employs quality control checks, with_

? documentation, of'the analytica'. phase of its environmental monitoring studies. The program is 1 defined in the Quality Control Program, and procedures f are specified in the QC Procedures Manual. -

The QC; Program includes laboratory procedures designed

-to prevent. cross-contamination and to ensure accuracy .

and precision of analyses. The quality control checks  !

include _ blind samples, duplicate samples, and spiked  ;

samples as necessary to verify that laboratory analysis activities are being maintained at a high level of accuracy.

The Quality Control Program is in compliance with USNRC Regulatory Guide 4.15'and includes appropriate control charts with specified acceptance levels for instrument sourco cheeks, background, efficiency, etc. for

counting equipment. 1 The Laboratoryfparticipates in the USEPA Interlaboratory_ Comparisen Program (crosscheck program) by. analyzing radioac:ive samples distributed for that purpcse. LThe results of the crcsscheck' program are

-presented in Appendix B.

5.0 Data Interpretations '

.In interpreting the data, effects due to the Callaway Plant must be. distinguished from--those due to other

' sources.

The principal 1 interpretation method used in assessment of those effects'is the indicator-control. concept design of the monitoring program _at the Callaway Plant.

Most sample types;are collected at both indicator locatione: (areas potentially affected by plant operations) and at control locations tareas not i-affected by' plant discharge). -A possible plant effect would be indicated.if the radiation level at an

' indicator location was significantly larger than that' at the control location.- The difference would have to befgreater-than what could be accounted for by typical fluctuations in radiation levels arising from other sources.

An additional. interpretation method involves analysis for? specific radionuclides present in the= environmental -i samples collected around the plant site. For certain isotopes it can'be determined if t21e activity is the +

.27 O- e. , - . . _ . - , . , , _,m.-- 3 ,.%. ,.,,p ,,% , . . . . . , , rya.. -,,yr .3 y,, ...*T~"'-P"- **~ "'"PT N'T*M'

• e -i l

l result of weapons testing or plant operations because  !

of the different characteristic proportions in which '

these isotopes appear in the fission product mix ,

i produced by a nuclear reactor and that produced by a nuclesr detonation.

Other means of distinguishing sources of environmental ,

radiation can be employed in interpretation of the data. Current radiation levels can be compared with i preoperational levels. Results can be related to those obtained in other parts of the country. Finally, results can be related to events kncwn to have caused  ;

elevated-levels of radiation in the environment. .

l 6.0 Results and Discussion The analytical results for the reporting period January to December 1989 are present in summary form in Appendix D. For each type of analysis of each sampled  ;

medium, this table shows-the annual mean and range for all indicator locations and for all control locations.

.The location with the highest annual mean and the results for this location are also given.

The discussion of the results has been divided.into four pathways; waterborne, airborne, ingestion, and ]'

direct radiation. The individual samples and analyses '

within each-category provides an adequate means of estinating radiation does to. individuals from the principal pathways. The data for individual samples are presented in tabular form in Appendix E.

~6.1 Waterborne Pathwav_

The water pathway of exposure from_the_Callaway Plant- q was evaluated by analyzing-surface water, well water,

. bottom sediment and shoreline sediment.

SurfAqg Water

. Analysis for alpha emitters showed detectable activity i in_ sixteen of the twenty-six samples, with results .l ranging :f rom 1.2 to 11.2 pCi/1. The average sample concentration at the indicator location was 3.2 pCi/l and_at the control location was 3.7 pCi/1. The values 1 are similar to those measured in previous years and can l

-be attributed to natural occurring isotopes.

The average gross beta actf.vity in all surface water  ;

samples ranged from 4.1 to 19.3 pCi/ liter. The average activity.at the control location was 8.0 pCi/1 and at i the indicator location was 7.4 pCi/1. Essentially

'similar results were obtained in 1983, 1984, 1985, 1986, 1987, 1988, 1989, and 1990 1

28 -I

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

i l

TheLanalysis of Tritibm in surface water showed J detectable. activity in fourteen of twenty +six samples l with results ranging from 133.0 to 689.0 pCi/1. The mean Tritium concentration at the indicator location t was1244.4 pCi/ liter and at the control location was

-436.8 pCi/1. The LLDs for other samples ranged from 159.0 to 183.0 pCi/1.

There. were no garna emitting nuclides detected in any surface water samples.

Strontium-89 activity was below the detection limit in ,

all samples. Strontium-90 activity was detected in six-of the twenty-six samples and ranged from 0.4 to 1.2 pCi/1. The mean sample concentration was 0.6 pCi/l for the indicator-location and the control location.

The levels of activity detected in surface water samples during 1989 were consistent with previously accumulated radiological environmental data and ,

indicate no influence from plant operations.

Ground Water. >

In ground water samples, gross alpha was detected in thirteen of twenty-one samples with results ranging

'from 0.8 to 4.2 pCi/1. The mean activity for indicator locations was.2.8 pCi/l and for control ?ocations was 2.1:pCi/1. Gross beta results showed positive values in twenty-one of twenty-one samples with the results

. ranging from 2.5 to 12.1'pCi/1. The average activity for indicator locations was 6.6 pCi/1.and for control location was 8.9-pCi/1. The gross alpha and gross beta '

-values-are similar to those measured in previous years. ,

Tritium results were below the detection limit which' .

ranged.from:163.0 to 197.0 pCi/1.

There were no gamma emitting nuclides detected-in any '.

ground water sample.

No Strontium-89; activity was observed above the detection-limit in any of the ground water samples.

Strontium-90 was dete ted in four of the twenty-one ,

samples and ranged,from 0.4 pCi/1 to 1.3 pCi/1.

The mean sample concentration at indicator. locations was.0.7 pCi/1. Similar Strontium-90'results were observed in 1984,-- 1985, 1986, 1989 and 1990. There was-no. indication of a plant effect on ground water. }

t 29 i  ;~ _

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

t Bottom S2diment Gross alpha analyses of bottom sediment showed positive values in three af the four samples. The alpha activity ranged from 8466.0 to 17208.0 pCi/kg. The average gross alpha activity for the indicator location was 12637.0 pCi/kg and for the control location was 10930.0 pCi/kg. Gross beta activity was detected in all samples with results ranging from 19022.0 to 26424.0 pCi/kg. The mean beta activity for indicator and control locations was 22561.5 pCi/kg and 24756.0 pCi/kg respectively.

Cesium 137 activity was detected in one cample with a concentration of 99.7 pCi/kg. There were no other -

gamma emitting nuclides detected in Bottom Sediment samples.

Strontium-89 was below the limits of detection in all samples. Strontium-90 activity was indicated in three of the four samples with results ranging from 9.7 pCi/kg to 31.0 pCi/kg. The average activity for ,

the indicator location was 20.8 pCi/kg and for the control location was 9.7 pCi/kg.

The activity levels were within the range observed during preoperational monitoring. No plant effect was observed.

ShoreUne Sedimenn Shoreline Sediment sample collections were made in April and October, 1991 and analyzed f or garc.u emitting isotopes. One shoreline sediment sample collected in April from location A showed a positive activity of Cesium-137 (111.0 pCi/kg). There were no gamma emitting nuclides detected in shoreline sediment samples collected in October. Similar levels of activity were observed in 1984, 1985, 1987, 1988, 1989 and 1990.

6.2 nirborne Pathway The airborne pathways of exposure from Callaway Plant were evaluated by analyzing samples of air particulate and air iodine cartridges.

Airborne Particu M1.2 The gr.oss bet activity in airborne particulate ranged from 0.004 to 0.056 pCi/m' in all samples. The average gross beta was similar at both indicator locations 30 l

3 3 (0.020 pCi/m ) and control location (0.g15pCi/m).

The highest annual average (0.023 pCi/m ) was measured at indicator location A8, 0.9 miles NNE of the plant.

Ganna spectral analysis of quarterly composites of air particulate filters showed Beryllium 7 in all samples.

The average Beryllium-7 ag'tivity for indicator locations was 0 051 pCi/m and for control locations 3

was 0.038 pCi/m . The presence of Bery111um-7 can be attributed to cosmic ray activity. No other genma emitting isotopes of interest were detected in the quarterly composites.

The Strontium-69 and Strontium-90 analyses performed on the gaarterly composites showed all activities to be celow their respective detection limits.

Levels and distribution of activity in the air particulate samples are similar to the previously accumulated data and indicate no influence from the plant.

Airborne Iodine Airborne Iodine 131,results were below the detection limit of 0.07 pCi/m# in all samples. Thus, there was no indication of a plant effect.

6.3 Incestion Pathway Potential ingestion pathways of exposure for Callaway Plant were evaluated by analyzing samples of milk, fish, vegetation, and soil.

Milr.

A total of thirty-one analyses for Iodine-131 in milk were performed during 1991. All samples were below the LLD which ranged from 0.2 to 0.5 pCi/1.

Naturally occurring Potassium 4C was the only ganna emitting isotope found in milk samples. Concentrations ranged from 920.0 to 1910.0 pCi/1. The average concentration at the indicator location (goats milk) was 1757.7 pCi/l and at the control location (cows milk) was 1247.2 pCi/1.

Strontium-89 results were below the LLD for all camples. The LLDs ranged from 0.4 to 1.3 pCi/1.

Strontium 90 war detected in all milk samples averaging 5.8 pCi/1 at the indicator location (goats milk) and 3.3 pCi/l at the control location (cows milk). The range of detectable results was 1.6 to 10.2 pCi/1.

31 l

e

Calcium was analyzed in all milk samples with levels ranging from 0.63 to 1.14 gm/l. The average calcium concentration at the indicator location was 0.93 gm/1-and at the control location was 0.88 gm/l.  !

In summary, the m._k data for 1991 show no radiological '

effects from plant operation. The presence of Strontium-90 in milk samples exhibits a long range i residual effect of previous atmospheric nuclear tests. )

ZIEh The types of fish species collected during 1991 were:

River Carpsucker, Gizzard Shad, Channel Catfish, Shortnose Gar, Largemouth Buffalo, Blue Catfish, Smallmouth Buffalo, Freshwater Drum, Flathead Catfish, Carp, Shorthead Redhorse, Goldeye and Quillback.

Twenty one of forty samples analyzed for gross alpha showed detectable activity. Concentrations ranged from

• 44.0 to 174.0 pCi/kg-wet. The mean activity at the ,

indicator location was 83.6 pCi/kg-wet and at the  :

control location was 95.8 pCi/kg-wet.

All fish samples indicated positive gross beta concentrations with levels ranging-from 2155.0 to 3315.0 pCi/kg-wet. The average beta activity in fish was similar for indicator and control locations (2673.3 and 2790.8 pCi/kg-wet, respectively). -

Potassium.40 was the only gamma emitting isotope detected. The mean Potassium 40 activity was 2784.3 ,

pCi/kg-wet for the indicator location and 2728.5 t

- pCi/kg wet for the control location.

No Strontium 89-activity was detected in-the fish ,

samples collected during 1990. Strontium-90 activity was dets;ted in two samples collected at.the control i location with mean results of 3.2 pCi/kg-wet.  ;

Activities detected in fish samples were consistent with the levels and fluctuations of previously- '

accumulated environmental data. The gross alpha and gross beta activity-can be attributed to naturally.

i occurring isotopes (e.g. Potassium-40). The o

Strontium-90 activity present in some samples can be ,

attributed to.world**ide fallout from atmospheric nuclear testing. It-can be concluded that operation of the plant has had no effect on~ fish samples.

32 i

. , . - . . , . , , , - - - . , . - - _ . , = . , -. ~ - . _ . , , ,-.,n._.._..,,.....,_,,-,, ,r,..,,,, - - . . _ , , - -

Vecetation The vegetation camples collecting during 1991 consisted-of mustard greens, turnip greens, lettuce, cabbage, and spinach.

Gross alphu activity was observed in thirty-two of forty eight vegetation samples with the results ranging j from 42.0 to 595.0 pCi/kg-wet. The average activity I for indicator locations was 209.5 pCi/kg-wet and for  !

the control location was 225.4 pCi/kg-wet.

Gross beta activity was detected in all vegetation l samples with results ranging from 1591.0 to 8772.0  :

pCi/kg-wet. The average. gross beta activity for [

indicator locations was 4416.8 pCi/kg-wet and for the i control was 4718.5 pC1,,kg wet.

Iodine 131 activity was below the detection' limit in all samples.

Naturally occurring Potassium-40 was found in all vegetation samples. Concentrations ranged from 1750.0 .

to 9430.0 pC1/kg-wet and averaged 4385.-5 and 4967.6 -

pCi/kg wet at indicator and control locations-

, respectively. All other gamma emitting isotopes were below their detection limit.

None of the vegetation sample results show statistically significant differences between indicator i and control locations and the levels of activicy were consistent with previously accumulated data. '

Therefore, no: plant effect was indicated.

Soil Gross alpha results ranged from 8645.0 to 17898.0 pCi/kg for all eleven samples. The mean activity for

-indicator locations was 14019.2 pCi/kg and for the ,

control location was 10466.0 pCi/kg.--Gross beta activity was alro detected in.all eleven samples ranging from 17691.0 to 25605.0 pCi/kg. The average gross beta activity was 22271.3 and 19091.0 pCi-/kg at indicator and control locations respectively.

Gamma spectral analysis of the 0011 samples showed- [

Cesium-137 and Potassium 40 in all samples. Cesium-137 results ranged from 375.0 to 1869.0 pCi/kg. -The- ,

average concentration was 1308.1 pCd/kg at the

. indicator locations and 375.0 pCi/kg at the control location. Potassium-40.results ranged from 9792.0-to 14900.0 pCi/kg. The average concentration for indicator locations was 11026.7 pCi/kg and for the control location was 14900.0 pCi/kg.

33

)

, , - ,,,,n w r, . ,-- - -,- ,. , , ,, . - , , . , . .- e , , , , . ~ . , , .. . , . -

The gross alpha and gross beta activity can be attributed to naturally occurring isotopes (e.g.

Potassium-40). The Cesium-137 activity present can be ,

attributed to worldwide fallout from atmospheric nuclear testing. The level of activity and distribution pattern is very similar to previously accumulated data and indicates no influence from the plant.

6,4 Direct Radiatina All TLD results present in this report have been normalized to a 90-day quarter (standard quarter) to eliminate the apparent differences in data caused by variations in length of exposure period. -

The range of quarterly TLD results for indicator locations was 10.3 to ?.0.0 mrem / standard quarter and 12.8 to 16.8 mrem / standard quarter for control '

locations. The quarterly TLD analyses yielded an average exposure level of 15.6 mrem / standard quarter at all indicator locations and an average e: posure level of 14.9 mrem / standard quarter at all control locations.

The annual TLD results ranged from 10.8 to 28.8 mrem / standard quarter. The average exposure levels were nearly identical at the indicator locations and control locations (17.2 mrem / standard quarter and 16.3 mrem / standard quarter, respectively).

There was no significant difference bet..een indicator -

and control locations for the TLD's during 1991. The exposure levels were censistent with previously accumulated data and no plant effects were indicated.

34

APPENDIX A 1991 IAND USE CENSUS

APPENCIX A UNION ELECTRIC COMPANY CALIAWAV PLMrr 1991 IJdiD USE CENSUS Prepared by h a.,# T # , b Approvedby__[#. . [ __

1. INTROD3CTION In accordance with Technical Specification 3.12.2, the annual Land Use Census within a 5 mile radius of the Callaway Plant was performed during August, 1991 by the Union Electric Real Estate Department. Observations were made in each of the 16 meteorological sectors of the nearest milking animals (cows and goats) nearest residence, and the nearest garden of greater than 50m8 (500 ft*) producing broad leaf vegetation. This census was completed by contacting the families identified in the 1990 census and driving the roads within a 5 mile radius of the Callaway Plant noting the location of the above-mentioned items.

The results of the Land Use Census are presented in Table 1 thru 3 and discussed below. In the tables, the radial dd.rection and mileage from the Callaway Plant conthinment 6te presented for each location. The radial directica is nn of the 16 different compass points. The mileage was co n tinated f rom map position for each location.

2. CENSUS RESULTS 2.1 Milkino Animals Table 1 presents the locations where mi3 king anirals were observed within the 5 mile radius of the Callaway Plant, All milking animals, whose milk is not used for human consumption and/or not yielding milk, are identified on Table 1. There were several changes in the location and number of milking animals observed during the 1991 census. However, none of the changes observed resulted in changes to the current milk sampling locations.

2.2 th uftst Resid2D1 Table 2 presents the location of the nearest resident to the Callaway Plant in each of the 16 meteorological sectors. There was one change in the nearest resident noted in the 1990 census. This change was in the E radial direction.

2.3 Venetable Gardeng The location of the nearest vegetable garden of greater than 50m2 producing broad leaf vegetation is presented in Table 3. Several changes were noted in the garden locations during the 1991 census. However, the change noted did not result in changes to the current vegetable sampling locations.

Al l

l l

I i

TABLE 1 NEAREST MILKING ANIMALS WITHIN FIVE MILEG OF THE CALLAWAY PLANT 1 1991 Meteorological Radial Number Number Sector Mileaqe of'Cown of Goat;I ENE 5.00 50* None i E 3.92 10* None ESE 2.28 100* None SE 2.38 100* None S 2.90- 3** None SSW 3,30 38* None SW 2.72 10* None WSW' 1.35 13** None  !

WNW . 2.80- 25* None NW 3.10 4*** 5

• Milk producing animals whose milk 10 not used for human consumption and/or for milk producing animals that are not

-y.1elding miIk.

Milk from one cow is being used for human consumption.

• • • Milk from two milk producing animals is being used for human consumption, j

A2

7:

TABLE 2 NEAREST RESIDENCE WITHIN FIVE MILES OF THE CALLAWAY PLANT 1991 Meteorological Radial Sector Mileage N 1.76 NNE 2.00 NE 2.00 ENE 3.80 E 3.92 ESE 2.28 SE 2.38 SSE 2.58 S 2.64 SSW 2.60 SW 2.57 WSW l'.35 W 1.60 WNW 2.60 NNW 3.10 NNW 1.78 A3

7 TABLE 3 NEAREST GARDEN WITHIN FIVE MILES OF Ti!E CALIAWAY PIANT 1991 Meteorological ..adial See: tor Mileacre N 1.76 NNE 2.00 NE 2.00 ENE 5.00 E 3.92*

ESE 2.28 SE 5.00 SSE 2.50+

S 3.44 SSW 3.30 SW 2 57 WSW 1.80

.W 1.92*

WNW 2,80*

NW 3.10 NNW 1.78 In this sector there were no gardens noted within five miles producing " broad leaf vegetation". The distance noted is the distance to the' nearest garden.

A4

I l

I I

I i

I

.h--

+

1 APPENDIX B EPA CROSS-CIIECK RESULTS 1991

. ~ - . - - -

t i

TABLE B1 (Cont.)

EPA INTERCOMPARISON STUDY RESULTS 1991 SAMPLE STUDY TIML RESULTS EPA RESULTS"

_ TYPg DATE ANALYSIS

• 2o I is. Nel ,_.Q9NTR01. . hl}i!TS UNITS HILK APR 1991 SR-89 24.0 2 8.7 32.0 1 5.0 23.3 - 40.7 pCi/1 ER-90 28.0 1 2.0 32.0 1 5.0 23.3 - 40.7 pCi/1 2-131 65.3 1 14.7 60.0 1 6.0 49_6

• 70.4 pC1/1  ;

CS-137 54.7 1 11.0 49.0 2 5.0 40,3 - 47.7 pC1/1 K 1591.7 1 180.1 1650.0 1 83.0 it06.0 - 178t.0 mg/l WATER HAY 1991 SR-89 40.7 1 2.3 39.0 t 5.0 30.3 - 47.7 pC1/1 SR-90 23.7 2 1.2 24.0 i 5.0 15.3 - 32.7 pC1/1 l

WATER MAY 1991 GR. ALPHA 27.7 2 5.8 24.0 2 6.0 13.6 - 34.4 pCi/1 GR. BETA 46.0 1 0.0 46.0 1 5.0 37.3 - 54.7 pCi/1 WATER JUN 1991 CD-60 11.3 1 1.2 10.0 1 5.0 1.3 - 18.7 pC1/1 1N-65 119.3 1 16.3 108.0 1 11.0 88.9 - 127.1 pCi/1 RU-106 162.3 1 19.0 149.0 2 15.0 123.0 - 175.0 pci/1 CS-134 15.3 1 1.2 15.0 2 5.0 6.3 - 23.7 pCi/1 CS-137 16.3 2 1.2 14.0 1 5.0 5.3 - 22.7 pC1/1 ,

BA-133 74.0 1 6.9 62.0 1 6.0 $1.6 - 72.4 pCJ/1*

WATER JUN 1991 H-3 13470 1 385.8 12480 1 1248 10315 - 14645 pC1/1 l

l; WATER JUL 1991 RA-226 14.9 2 0.4 15.9 2 2.4 11.7 - 20.1 pC1/1

! RA-228 17.6 1 1.8 16.7 1 4.2 9.4 - 24.0 pC1/1 WATER JUL 1991 U 12.8 1 0.1 14.2 2 30 9.0 - 19.4 pCi/1 WATER AUG 1991 1-131 .19.3 2 1.2 20.0 2 6.0 9.6 - 30.4 pC1/1 WATER AUG 1991 PU-239 21.4 2 0.5 19.4 1 1.9 16.1 - 22.7 pCi/1 AER FILTER AUG 1991 GR. ALPHA 33.0 1 2.0 25.0 2 6.0 14.6 - 35.4 pCi/ Filter GR. BETA 88.7 1 1.2 92.0 1 10.0 80.4 - 103.6 pCi/ Filter SR-90 27.0 2 4.0 30.0 2 5.0 21.3 - 38.7 pCi/ Filter

, CS-137 26.3 1 1.2 30.0 1 5.0 21.3 - 38.7 pCi/ Filter l -.

WATER SEP 1991 SR-89 47.0 2 10.4 49.0 1 5.0 40.3 - 57.7 pC1/1 SR-90 24.0 2 2.0 25.0 1 5.0 16.3 - 33.7 pCi/1 WATER SEP 1991 GR. ALPHA 12.0 1 4.0 10.0 1 5.0 1.3 - 18.7 pCi/1 j GR. BETA 20.3 2 1.2 20.0 2 5.0 11.3 - 28.7 pCi/1 L

B-2

~

l

TABLE 91 (Cont.)

EPA IF.TERCOMPARISON STUDY RESULTS 1991 SAMPLE STUDY TIML RESULTS EPA RESULTS" TYPE DATE ANALYSIS 1 20 8 1s, N=1 CQNTROL LIMITS UNITS MILK SEP 1991 SR-89 20.3 1 5.0 25.0 1 5.0 16.3 - 33.7 pC1/1 SR-90 19.7 1 3.1 25.0 1 5.0 16.3 - 33.7 pci/1 1-131 130.7 1 16.8 108.0 2 11.0 88.9 - 127.1 pCi/1' CS-137 33.7 1 3.2 30.0 2 5.0 21.3 - 38.7 pCi/1 K 1743.3 1 340.8 1740.0 2 87.0 1589.1 - 1890.9 mg/l WATER OCT 1991 CO-60 29.7 1 1.2 29.0 1 5.0 20.3 - 37.7 pC1/1 EN-65 75.7 2 8.3 73.0 1 7.0 60.9 - 85.1 pC1/1 RU-106 196.3 1 15.1 199.0 1 20.0 144.3 - 233.7 pci/1 CS-134 9.7 2 1.2 10.0 2 5.0 1.3 - 18.7 pci/1 CS-137 11.0 1 2.0 10.0 t 5.0 1.3 - 18.7 .pci/1 RA-133 94.7 1 3.1 98.0 1 10.0 80.7 - 115.3 pci/1 WATER OCT 1991 E-3 2640.0 1 156.2 2454.0 1 352.0 1843.3 - 3064.7 pCi/1 WATER OCT 1991 GR. ALPRA 73.0 1 13.1 82.0 1 21.0 45.6 - 118.4 pci/1 RA-226 20.9 2 2.0 22.0 1 3.3 16.3 - 27.7 pci/1 RA-228 19.6 2 "3 . 22.2 1 5.6 12.5 - 30.9 pCi/1 U 13.5 1 0.6 13.5 2 3.0 8.3 - 18.7 pci/1 WATER OCT 1991 GR. BETA 55.3 2 3.1 65 0 1 10.0 47.7 - 82.3 pci/1 SR-89 9.7 1 3.1 10.0 1 5.0 1.3 - 18.7 pci/1 SR-90 8.7 1 1.2 10.0 1 5.0 1.3 - 18.7 pCi/1 CO-60 20.3 1 1.2 20.0 1 5.0 11.3 - 28.7 pCi/1 CS-134 9.0 t 5.3 10.0 1 5.0 1.3 - 18.7 pci/1 CS-137 14.7 2 5.0 11.0 t b.0 2.3 - 19.7 pci/1 WATER NOV 1991 P.A-226 5.6

• 1.2 6.51 1.0 4.8 - 8.2 pci/1 RA-228 9.6 1 0.5 8.1 1 2.0 4.6 - 11.6 pci/1 WATER HOV 1991 U 24.7 2 2.3 24.9 2 3.0 19.7 - 30.1 pci/1 a Unless otherwise indicated, the TIML results are given as the mean 1 2 stendard deviations for three determinations.

b EPA results are presented as the known value and expected laboratory precision (1s, 1 determination) and control limits as defined by EPA.

c S o Addendum to appendix B for explanation of the reason why the sample results were outside the control limits specified by EPA.

B-3

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

i i

I ADDENDUW 20 APPEND 11 B 1991 t

SAMPLE STUDY i TYPE DATE ANALY$I8 EIPf>AL4DE- .

AIR FILTER MAR 1991 GR. ALPHA .The cause of the high result f is the differenct in geometry between the standard used in ,

the TIML lab and EPA filter.

No further actions required.  ;

. 'I WATER MAR 1991 RA-228 Sample lost during analyses. '

No data reported to EPA.

--WATER MAY 1990 GR.'ALPRA 'fsaple was reanalysed in trip-11cate. Results of reanalysea 13.411.0 pC1/1.- no-further action is planned. I WATER JUN 1991 RA-133 Sample was reanalysed. Results of the remnalyses were 63.81  !

6.9 pci/L within opa limit.

• The cause of the high result ,

is unknown. ,

I MILE SEP 1991 1-131 The cause of the high result j is' unknown. Inhouse spike sample was prepared with activity of I-131 68.316.8pci/ .

L. Results of the analysis was 69.119.7pci/L.

I' S

t 4

i B-4

a. .; _ . ~ . _ , _ . -. _ . _ . _ . - . ~ . . _ - - , _ _ _ - - _ . . - _ _ . . _ _ . _ . . _ . . . . _ . , . _ _ . - . _ _ _ . _ . , _ . _ . _ . . , . - _ _ . _ - . . , , . . ~ , . _

= - . . , _ _

2(i .

l i

~ -

4 i

a-1 F

._4 f_ l'

.)

.;i _!J ' .

APPENDIX C

--Isotopic Detection Limats And Activity Determinations s

5 '.

4 i

P s .-

t 1

h y e J > v %

7;- ~1 IsotopipjDetection: Limits and Activity Detcytminations e Making a_. reasonable estimate of the limits of detection-for a counting; procedure or a radiochemical method is usual _ly-complicated by the presence of significant background. ,

It must be considered that the backgrcund or blank is not a

~

fixed value but3: hat a series of replicates would be normally distributed. The desired net activity is thus the ,

difference between the gross sample activity and background activity distributions.

The. interpretation of_this difference becomes a problem if the_two distributions intersect as it.dicated in the diagram.

ucse m o

-T 'N exoss N

If^a sufficient number of replicate analyses are run, it is to be expected _ that the results would f all~ in a normal Gaussian distribution. In routine analysis such replication

-is not: carried at. Standard statistics allow an estimate of- the probability of any particular deviation from the mean value. -It'is common practice to report the mean 1 one or two standard deviations as the final result.

Analytical _ detection limits are governed'by a number of factors including:

1. Sample Size

2. Counting Efficiene_y The fundamental quality in the- measurement of a radioactive substance is the number of disintegration 3

'per unit. time. As with most physical measurements'in analytical 1 chemistry, it is seldom possible to make an absolute measurement of the disintegration rate, but rather, it is.necessary to compare the sample with one or more standards. The standards determine the counter efficiency-which may then be used to convert sample counts per minute (cpm) to disintegraticns per minute 4

(dim).

C-1

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

l l

I

1. Background Count Rate

Any-counter will show a certain counting rate without a 3 sample in= position. This background counting rate '

comes from several sources: 1) natural environmental radiation from the surroundings, 2) cosmic radiation, and 3) the natural radicactivity in the counter material:itself. The: background counting rate will  :

' depend on_the amounts of these typen of radiation and sensitivity of the counter to the rndiation.

4' Backcround _and_ Sample Counting .TJ m,e The amount of time devotedEtt the counting of the r background depends on the level of activity being

= measured. In general, with low level samples, this time-should be about equal to that devoted to counting a sample,

5. Time Interval Between samp_le Collection and Counting Decay measurements are useful in identifying certain short-lived isotopes. This disintegration constant is one-of the basic characteristics of a specific radionuclide and is readily determined, if the half-life is suff5ciently short.

-6 Chemical Recover _y_of the Analytical Procedures.

Most radiochemical analyses are carried out'in such a-way that losses occur during the separations. These losses occur due to a large number of contaminants that may be present and interfere'during chemical separations. Thus!it is necessary to include a technique for. estimating these-losses in the

~

development of the analytical procedure.

The following method was used to determine lower limit of detection-(LLD) as per NRC Regulatory Ouide-4.1, Rev. 1, " Program . f or Monitoring 'Radi oactivity in the c Environs of Nuclear Power Plants", and the NRC Branch Technical Position, November 1979, "An-acceptable Radiological Environmental ~ Monitoring Program". The-L LLD is defined, for-purposes of thin guide, as the smallest concentration of radioactive material in a sample that.will yield a net count _(above system background) that will be detected with 95%

l probability'with only_-Sycprobability of' false]y concluding that'a blank observation reprenents a "real" signal.

L l.

C-2

i For a particular measurement system (which may include radiochemical separation):

LLD= 4 . 6 6 * *~ b E* V

• 2.22 *Y* exp"(-16t)

WIIERE:

LLD = "A prior" lower limit of detection as defined above (as pCi per unit mans or volume).

"b = Standard deviation of the background counting rate or of the counting rate of a blank sample as appropriate (as counts per minute).

= Counting efficiency (es enunts per E

disintegration). ,

V = Sample sice (in units of masc or volume).

2.22 = Number of disintegrations per minute per picocurie.

Y = Fractional radiochemical yield (when applicable).

1 = Radioactive decay constant for the particular radioisotope.

At = Elapsed time between sample collection (or end of the sample collection period and time of counting.

The value of "b used in the calculation of the LLD for a particular measurement system is based on the actual observed variance of the background counting rate, or, of the counting rate of the blank snmple, (as appropriate), rcther than on an unverified theoretically predicated variance.

In calculating the LLD for a radionoclide determined by gamma-ray spectrometry, the background included the typical contributions of other nuclides normally presor.t in the samples.

C-3

- single' Measurements.

Each: single. measurement is reported as follows:

x+s whereExs=' value of the measurement; s =12 counting: uncertainty-(corresponding to the 95% confidence' level).

'In cases where-the activity is found to be below the lower

-limit to detection L it is reported as

-<L ,

where L = is the lower limit of detection based on 4.66 uncertainty'for a, background' sample.

Duplicate - Analysi s 1 Individual-result: *1 + "1 x

2+- "2 x+s Reported result:

where x =-(1/2) (*1 + *2) s = (1/2) 2+ 2 "1 3 c: 2 . -Individual results: <L y

<L 2

. Reported result <L 1

where L = lower of L y and L 2 i

1

3. . Individual-results: x1s '

L <L l-Reported result: x+ s if x > L, q R <L otherwise '

Computation of Averaces and Standard Leviations

[ Averages and ' standard deviations listed in the tables E are computed from all of the individual measus aments l: over the period averaged; for example, an annual L standard deviation would not be the average of l quarterly-' standard deviations. The average x and standard deviation (s) of a set of n numbers x y, x 2'

C-4 7 .'

V E

x are defined as follows:

n X=1n IX g, Z(X-X)2 n-1 Values below the highest lower limi' of detection are not included in the average, p If all of the values in the averaging group are less than the highest LLD, the highest Lt.D is reported.

If all but one of the values are le s than the highest LLD, the single value x and associa'ed two sigma error is reported.

In rounding off, the following rulen are followed:

1. If the figure following those to be retained is less than 5, the figure is dropped, and the retained figures are kept unchanged. As an example, 11.443 is rounded off to 11.44.

2. If the figure following those to be retained is greather than 5, the figure is dropped, and the last retained figure is raised by 1.

As an example, 11.446 is rounded off to '

11.45.

3. If the figure tollowing those to be retained is 5, and if there are not. figures other than zeros beyond the five, thn figure 5 is dropped, and the last-place figure retained is increased by one if it is an c.: number or -

it is kept unchanged if an even number. As an example, 11.435 is rounded off to 11.44, while 11.425 is rounded o'f to 11.42.

C-5

3 APPENDIX D RAD 3OLOGICAL ENVIRONMENTAL MONITORING PROGRAM ANNUAL

SUMMARY

1991 m

i,

~

APPENDIX D RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM ANNUAL

SUMMARY

Name of Facility: Callaway P! ant Docket No.: 50-483-Location of Facility: Callaway Countw. Missouri Reporting Period: 1991 (county, state)

TYPE AND LOWER ALL INDICATOR LOCATION WITH HIGHEST CONTROL LO3 TION NUMBER OF MEDIUM OR PATitWAY TOTAL NUMBER LIMIT OF LOCATIONS ANNUAL MEAN MEAN (f)* - NONRO'JTINE SAMPLED OF ANALYSES DETECTION' MEAN (f)* - NAME- MEAN (f)* RANGE REPORTED (UNIT OF MEASUREMENT) PERFORMED (LLD) RANGE DISTANCE & RANGE MEASUREMENTS

_ DIRECTION _

Sur! ace Water Gross A pha (26) 0.9 3.2 (11/14) 4.8 ml SE: 1 . 1 11 3.7(9/12) 3.7 (9/12) 0 (pCl/I) (1.S - 7.8) downstream of (1.2 - 11.2) (1.2 - 11.2) discharge Gross Deta (29) --

7.4 (14/14) 4.8 mi SE: 1.1 ft 8.0(12/12) 8.0 (12/12) 0 (4.7 53.6) downstream of (4.1 - 19.3) (4.1 - 19.3) dischargo H-3. (26) 159.0 244.4 (10/14) 4.8 mi SE: 1.1 ft 436.8(4/12) 436.8 (4/12) 0 (133.0 - 500.0) upstream of (212.0 - 689.0) (212.0 - 643.0) discharge Gamma (26) --

--- (0/14) NA NA -- (0/12) O Sr-89 (29 0.4 -- (0/14) NA NA -- (0/12) O Sr-90 {26) 0.3 0.6 (2/14) 4.8 mi SE; 1.1 ft G.6 (4/12) 0.6(4/12) 0 (0.4 - 0.7) upstream of (0.4-1.2) (0.4-1.2) discharge Ground Water Gross Alpha (21) 0.8 2.8 (8/14) 5.1 mi SE: 3.2 (G/8) 2.1 (5/7) 0 (pCi/t) (0.8 - 4.2) Portland, MO. (1.4 4.2) (1.6-2.6)

APPENDIX D (Cont.)

RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM ANNUAL

SUMMARY

Name'of Facility: Callaway Plant Docket No.: 50-483 Location of Facility: Callag3y.C_oynty. Missouri Reporting Period: 1991 (cou i,i, state) .

TYPE AND LOWER ALL INDICATOR LOCATION WITH HIGHEST CONTROL LOCATION NUMBER OF MEDtufA OR PATHWAY . TOTAL NUMBER LIMIT OF LOCATIONS ANNUAL MEAN MEAN (f)2 NONROUTINE SAMPLED . OF ANALYSES DETECTION' MEAN (f)* NAME MEAN (T)* RANGE REPORTED (UNIT OF MEASUREMENT) PERFORMED (LLD) RANGE DISTANCE & RANGE MEASUREMENTS

_DfRECTION Gross Deta (21) --

6.6 (14/14) 1.0 mi SSE: 11.4(6/6) 8.9 (7/7) - 0 (2.5 - 12.1) Ns!!e well (9.8 - 12.1) (8.4-9.7)

H-3 (21) 163.0 -- (0/14) NA NA -- (0/7) 0 Gamma (21) --

-- (0/14) NA NA -- (OT7) O Sr-89 (21) 0.4 -- (0/14) NA NA -- (0/7) O Sr-90 (21) 0.3 0.7 (4/14) 1.0 ml SSE: 0.7 (4/6) -- (C/7) 0 (0.4-1.3) Onsite wett -(0.4-1.3) --

Dottom Sediment Gross Alpha (4) 6276.0 12837.0 (2/2) 5.1 mi SE: 13891.0(4/4) 10930.0 (1/2) 0 (pct /kg) (8466.0 - 17208.0) 1.0 mi down- 11730.0-17062.0) (10930.0 - 1093G.0) stream of discharge Gross Beta (4) --

22561.5 (2/2) 4.9 at SSE: 24756.C (2/2) 24756.0 (?'2) 0 (19022 o - 2010i.0) 0.C miup- 23088.0-26424A) (23088.0 - 26424.0) siteam of discharge

~ APPENDIX D (Cont.)

RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM ANNUAL

SUMMARY

Name of Facility: Callaway Plant Docket No.: 50-483 Location of Facility: Caltaway County. Missouri ' . Reporting Period:- 1991 (county, state)

TYPE AND LOWER ALL INDICATOR LOCATION WITH HIGHEST CONTROL LOCATION  : NUMBER OF MEDIUM OR PATHWAY TOTAL NUMBER LIMIT OF LOCATIONS ANNUAL MEAN ' MEAN (f)* NONROUTING SAMPLED OF ANALYSES DETECTIOfU - MEAN (f)* NAME MEAN (f)2 . RANGE REPORTED ,

(UN!T OF MEASUREMENT) PERFORMED (LLD) RANGE DISTANCE & - RANGE MEASUREMENTS ARECTION Gamma (4)

Cs-137 21.9 99.7 (1/2) 5.1 mi SE: 99.7 (1/2) --- . (0/4) 0 1.0 mi down- --- ---

stream of dischaige St-81 (4) 11.5 -- (0/2) NA NA - (Of2) O Sr-90 (4) 6.2 20.8 (2/2) 5.1 mi SE: 20.8 (2/2) 9.7 (1/2) 0 (10.6 - 31.0) 1.0 mi down- (10.6 - 31.0) --

stream of discharge Shoretine Sediment Gamma (4) t(pC1/kg) Cs-137 26.7 -- (0/2) 4.9 mi SSE: 111.0 (1/2) 111.0 (1/2) 0

-- 0.6 mi up- -- --

stream of discharge i

i

' APPENDIX D (Cont.)'

RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM ANNUAL

SUMMARY

Name of Facility: - Callaway Plant Docket No.: 50-483' Location of Facility: C_allaway County. Missouri Reporting Period: 1991 (county, state)

TYPE AND LOYER ALL INDICATOR LOCATION WITH HIGHEST CONTROL LOCATION NUMBER OF MEDIUM OR PATHWAY TOTAL NUMBER . LIMIT OF LOCATIONS A'!NUAL MEAN MEAN (f)2 ~ NONROUTINE SAMPLED OF ANALYSES DETECT 10N' ' MEAN (f)8 NAME MEAN (f)2 RANGE ' REPORTED (UNIT OF MEASUREMENT) PERFORMED (LLI)) RANGE DISTANCE & RANGE MEASUREMENTS

__ OtRECTION Airborne Particulate Gross Beta (259) 0.010 0.020 (20G/207) 0.9 mi NNE: 0.023 (52152) 0 015 (5?192) 0 (pCi/m3 (0.007 - 0.056) Altemate (0.011 - 0.050) (0.004 - 0.035)

Assembly Area Gamma (20)

De-7 --

0.051'(16/16) 0.9 mi NNE: 0.060 (4/4) 0.038 (4/4) 0 (0.025 ~ 0.068) Alternato 0.051 - 0.067) (0.029 - 0.038)

Assembly Arm St-89 (20) 0.0002 -- (0/16) NA NA -- (0/4) O Sr-90' (20) 0.0001 -- (0/16) NA NA -- (0/4) 0 Airbomo lodine 1-131 (257) 0.07 -- (C/207) NA. NA -- (0/52) 0 (pCUm3

_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ - _ _ _ _ _ _ ___ _ _ = ._. ._J

I. l il

[

APPEND!X D (Cont.)

RAC!OLOGICAL ENVIRONMENTAL MONITORING PROGRAM ANNUAL

SUMMARY

50-483 l Namo of Facility- Callaway Plant Dockot No.:

)

Location of Facility: Callaway County. Missouri Reporting Period: 1991 (county, state)

CONTROL LOCATION NUMDER OF TYPE AND LOWER ALL INDICATOR LOCATION WITH HIGHEST MEAN (f)2 NONMOUTINE j LIMIT OF LOCATIONS ANNUAL MEAN MEDIUM OR PATHWAY TOTAL NUMBER REPORTED NAME MEAN (02 RANGE OF ANALYSES DETECTION' MEAN (f)2 SAMPLED MEASUREMENTS RANGE DISTANCE & RANGE (UNIT OF MEASUREMENT)

PERFORMED (ulD)

_DfRECTION NA ~ (0/18) 0 0.2 -- (0/13) NA Mitk 1-131 (31)

(pCUT)

Gamma (31) 0 3.1 ml FN/; 1757.7(13/13) 1247.2 (18/18)

K-40 1757.7 (13/13)

Goats milk (1540.0 - 1910.0) (920.0 - 1400.0)

(1540.0 - 1910.0)

Schnekfers farm l

NA --

(Of18) O 0.4 -- (0/13) NA Sr-89 (31) 3.3 (18/18) 0 5.8 (13/13) 3.1 ml NW: 5.0 (13/13)

Sr-90 (31)

Goats m!!k (1.C - 10.2) (1.7-5.3)

(1.6 - 10.2) l Schneiders farm l 0 3.1 m! NW: 0.93(13/13) 0.88 (18/16)

(grams /ifter) Ca (31) -- 0.93 (13/13)

Goats milk (0.75 - 1.14) (0.63 - 1.1 4 (0.75 - 1.14)

Sct.neiders farm 4.9 mi SSE; 95.8 (6/15) 0 Gross Alpt a (40) 32.0 83.G (15/25) 95.8 (G/15)

Fish (44.0 - 174.0) 0 6 mi up- (70.0 - 95.8) (70.0 - 95.8)

(pCVkg - wet) strearn of discharge

( . _ _ _ _ _ . -

APPENDIX D (Cont.)

RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM ANNUAL

SUMMARY

Name of Facility: Ca!!away Plant - ~ D0cket NO.: 50-483 Location of Facility; Callaway County, Missouri Reporting Period; 1991 (county, stato) -

TYPE AND LOWER ALL INDICATOR LOCATION WITH HIGHEST CONTROL LOCATION NUMBER OF MEDIUM OR PATHWAY TOTAL NUMBER LIMIT OF LOCATIONS ANNUAL MEAN MEAN (f)* NONROUTINE SAMT1ED OF ANALYSES DETECTION' - MEAN (D8 NAME MEAN (02 RANGE REPORTED (UN:T OF MEASUREMENT) PERFORMED (LLD) RANGE DISTANCE & RANGE MEASUREMENTS -

_DfRECTION Gross Beta (40) --

2673.3 (25/25) 4.9 mi SSE: . 2790.8 (15/15) 2790.8 (15/15) 0 (2155.0 - 3315.0) 0.6 mi up- (2376.0 - 3124.0)- (2376.0 - 3124.0) stream of Gamma (40)' discharge K-40 --

2784.3 (25/25) 53.0 ml ESE: 2860.2(10/10) 2728.5 (15/15) 0.

(2250.0 - 3678.0) 59.5 mi down- (2250.0 - 3678.0) (1970.0 - 3360.0)'

stream of

- discharge Sr-89 (40) 2.1 -- (0/25) NA NA -- (0/15) O St-90 (40) 1.2 -- (0/25) 4.9 mi SSE: 3.2 (2/15) ' 3.2 (2/15) 0 0.6 mi up- (3.1 - 3 4) (3.1-3.4) stream of discharge Vegetation Gross Alpha (48) 42.0 209.5 (23/31) 1.8 mi N; 237.2(11/13) 225.4 (9/17) 0 (pCi/kg - wet) (77.0 - 453.0) Meehan farm '(77.0- 453.0) (42.0 - 595.0)

Gross Deta (48) --

4416.8 (31/31) 15.0 mi SW; 4718.5 (17/17) 4718.5 (17/17) 0 (1591.0 - 8772.0) Beazley farm (2613.0 - 7687.0) (2613.0 - 7687.0)

-- (0/31) 1-131 (48) 8.8 NA NA --

(0/17) O

~

y .

APPENDIX D (Cont.) -- -  ; ' ;c

s. ,..

rf

= RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM ANNUAL

SUMMARY

Name of Fac!!ity: . -Callaway Plant L , Docket No.: 50-483 -

~

Location of Facility: Callaway County. Missouri - . Reporting Period: L1991

i.(county, state)

, TYPE AND a . LOWER ALL INDICATOR : i LOCATION WITH HIGHEST "  : CONTROL LOCATION NUMBER OF1

• MEDtUM OR PATHWAY ' TOTAL NUMBER ' LIMIT OF - LOCATIONS ' . ANNUAL MEAN - - MEAN (f)*  : NONROUTINE '

SAMPLED . OF ANALYSES T ' DETECT 10N' MEAN(f) . .

.NAME MEAN ff)* RANGE REPORTED' (UNIT OF MEASUREMENT) PERFORMED '

(LLD) ' . RANGE- DISTANCE & - RANGE MEASUREMENTS' i

_ DIRECTION l

Gamma (48) ..

K-40 - - -

4385.5 (31/31). .15.0 mi SW; 4967.6 (17/17). 4967.6 (17/17) 0 (1750.0 - 7440.0) . Beaziey Iarm (2650.0 - 9430.0)- (2650.0 - 9430.0).

, 4

. Soil - ' Gross Alpha (11) --

14019.2 (10/10) 1.50 mi NE: -' 17898.0(1/1) 10466.0 (1/1):. 0 .'

(pC1/kg) .(8645.0 - 17898.0)- Forest ecology. --: --

plot F8 4 Gross Beta (11) .-- 22271.3 (10/10) -[0.98 mi S; 25605.0 (1/1) 19091.0 (1/1) 'O

' ' (17691.0 - 25605.0) l ' Foiest ecology - --

s plot F1 Gamma -(11)

K -. 1102G.7(10/10) " 15.0 mi SW; 14900.0 (1/1) 14900M (1/1) . 0 .. J (9792.0 - 12220.0)' Besztey farm -- --

a Cs-137 --

1308.1 (10/10) 0.98 mi S; L1869.0 (1/1) 375.0 (1/1) 0 (582.0 - 1869.0) Forest ecology . -- -

pbtF1 '

r

[

a L

o -

+ - - -

i

~ APPENDIX D (Cont.) -

i _ RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM ANNUAt.

SUMMARY

/

Name of Facility:- Callaway Plant ' Docket No.: '50-483 Location of Facility: Callaway' County. Missouri . Reporting Period: ~ 1991 -

(county, state) L TYPE AND LOWER ALLINDICATOR LOCA110N WITH HIGHEST CONTHOL LOCATION , NUMBER OF -

MEDIUM OR PATHWAY. - J TOTAL NUMBER ' LIMIT OF ' ~ LOCATIONS ' L ANNUALMEAN - MEAN (f)*,. NONROUTINE SAMPLED OF ANALYSES DETECTION' MEAN (f)* - -NAME MEAN (f)* RANGE' REPORTED'

- (UNIT OF MEASUREMENT) PERFORMED. - (LLD) RANGE DISTANCE & RANGE' MEASUREMENTS  :!

~

'_ DIRECTION Direct Radiation Quarterty -;

(mnem/ Standard Quarter) TLDs' . (207) 10 15.6(199/199). . 4.2 mi NE: 0.3 17.7 (4/4) 14.9 (WB) - -0  ;

. (10.3 - 20,0) mi N of HWY O (15.4 - 20.U) (12.8 - 16.8) .'

onHWYD r

Annual-

-- TLDs : (51). 10- 17.2(49/49) 5.3 mi SE 28.8 (1/1) 16.3 (2/2) ~ 0 [

- 0.6 mi S of (14.1- 18.5)  ;

' (10.8 - 28.8) .-

HWY D on HWY 94 t

(1) The LLDs quoted are the lowest actual LLD obtained in the various media during the raporting perlod. The required LLDs for radiological environmental sample anatysis is found in Table ill Where all nuclides were LLD for a specific media, no LLD was listed.

(2) Mean and range are based upon detectable measurements only. Fraction of detectable measurements is indicated in parentheses.  !

f i 1 T

.y I

i i - - -

, r,,,..

-t

. , . ~ . - m_

i l

APPENDIX E TELEDYNE ISOTOPES MIDWEST LABORATORY DATA TABLES T

APPENDIX E LIST-OP TABLES

-Nm. Tit 1e Ease El- Airborne Iodine-131 and Gross Beta E-3 in Air Particulate Filter E2 Airborne Particulate, Quarterly E-5 Composites E3 Milk E-7 E4 Vegetation E-16 E5 Soil E-24 E6 Surface Water E-26 E7 Ground Water- E-32

-E8 Bottom Sediment E-6

-E9 Shoreline Sediment E-37 E10 Fish E E11 Thermoluminescent Dosimetry E-43 E-1

, gy . . .

• \ B; Definitioniof"the term used inLthe data tables are=as

^ :follows:

Wet Weight LA' reporting unit _used with organic-tissue samples such as vegetation and animal samples-in which the amount of sample is taken to=be the weight as received from the field with no' moisture removed.

a-n '

-Dry Weight A reporting unit used for coil and sediment in which the. amount.of sample is taken_to be the weight of the sample af ter removal of moisture by drying in an oven.

pCi/n3 A reporting unit used with air particulate'and radiciodine data which refers to_the. radioactivity content _.

expressed-i.n picoeuries per cubic meter of. air pashed.through the filter and/or the charcoal trap. Note that- the vo3 ume is not corrected to standard conditions.

Gamma Emitters. Samples 1were analyzed by high resolution or (GeLi)- gamma spectrometry. .The Gamma Isotopic resulting spectrum is analyzed by a O computer program which scans from about 50 to 2000 kev and lists _the energy 4 peaks of any nuclideafpresent in concentrations exceeding the sensitivity

. limits-set for _ that: particular experiment'.

• Error Terms Figures following

• 1 " are_ error terms based.on counting uncertainties at the 95 percent confidence level. Values preceded by the "<" symbol were below the stated-concentration-at the 99

-percent confidence-level. '

3ensitivity In general, all analysea meet the

-sensitivity _ requirements of the program as given in Table 3.1. For the few samples that do not -(because of

12. adequate sample quantities, analytical interference, etc.) the sensitivity actually obtained in the analysis is given.

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• e w e v e e v e O u 2

T/UBLE E2 3

AIRBORNE PARTICULATE - QUARTERLY COMPOSITES (pCi/m )

1991 JANUARY - MARCH 1991 CA-APT-Al CA-APT A7 CA A 4-A6 CA-APT AS CA-AFT B3 Volume (Cubic Feet): 5134 5084 5132 5131 5130 Onelvtis _ __

Sr-09 <0.0002 <0.0002 <0.0002 <0.0002 <0.0003 3r-90 <0.0002 <0.0002 <0.0002 <0.0002 <0.0002 Se-7 U 0590 s 0.0110 0.0290 s 0.0060 0.0670 2 0.0110 0.0560 2 0.0090 0.0680 2 0.0110 Co-;8 <0.0010 <0.0006 <0.0010 <0.0007 <0.0003 Co-60 <0.0008 <0.000B <0.0008 <0.0007 <0.0008 2r-95 <0.0017 <0.0011 <0.0016 <0.0008 <0.0017 ts-134 < 0. 00 08 40.0004 <0.0008 <0.0006 <0.0007 C4-137 <D.0009 <S.0006 <0.0008 <0.0005 <0.0008 Ba-La-140 <0.0011 <0.0011 <0.0012 -<0.0010 <0.0018 Ce-144 <0.0042 <0.0016 <0.0038 <0.0019 <0.003B april - JUNE 1994 CA-api-Al CA-APT ,'J CA-api-A8 CA-AFT-A9 CA-APT-83 Volume (Cubic Feet): 55E2 5559 5554 5504 5572

, Anal vC <

Sr-29 <0.0003 <0.0004 <0.0003 <0.0003 < 0. 0003 Sr-90 <0 0001 <0.0002 <0.0001 <0.0002 <0.0002 Se-7 0.0590 2 0.0090 0.0380 2 0.0070 0.0580 2 0.0110 0.0400 0.0080 0.0440 s 0.0120 Co-58 <0.0008 <0.0008 <0.0007 <0.0009 <0.0010 Co-60 <0.0006 <0 0005 <0.0005 <0.0007 <0 0009 2r-95 <0.0011 <0.0013 <0.0020 +0.0016 <0.0000 Cs-134 <0.0005 <0.0005 <0.0007 <0.0007 <0.0006 Os-137 <0.0005 <0.0004 <0.0005 <0.0007 <0.0008 ba-La-140 <0.0010 <0.0020 <0.0028 <0.0020 <0.0022 Ce-144 <0.0019 <0.0015 <0.0042 <0.0037 <0.0041 h:tes:

E-5

TABLE E2 (Cont.)

3 AIRBORNE PARTICULATE - QUARTERLY COMPOSITES (pci/m )

1991 JULY - SEPT [MDER 1991 CA-APT-Al CA-APT-A7 CA-APT-A8 CA APT-A9 CA APT-83 volume (Cubic Feet): 5968 5987 5642 5988 5998 Amivsis _ _ .

Sr-69 <0.0003 <0.0003 <0.0003 <0.0004 <0.0003 St-90 <0.0002' <0.0001 .s 0001 <0.0002 <0.0002 Be-7 0.0470 2 0.0050 0.0410 3 0.0090 0.0510 3 0.0070 0.0460 a 0.0100 0.0250 3 0.0050 Co-58 <0.0007 <0.0007 <0.0010 <0.0008. <0.0009 Co-60 <0.0007' <0.0006 <0.0007 ' <0.0008 <0.0006 2r-95 <0.0015 <0.0016 <0.0017 <0.0014 <0.0015 Ca-134 <0.0005. <0.0006 <0.0008 <0.0006 <0.0006 Cs-137 <0.0007 <0.0007 <0.0008 <0,0007 <0.0007 80-ta-140 <0.0017 <0.0018' <0.0014 <0.0016 <0.0014 Co 144 <0.0036. <0.0038 <0.0051 <0.0034 <0.0043 OCTOBER - OECEMBER 1991 CA-APT-Al CA-APT-A7 CA-APT-A8 CA-APT-A9 CA-APT-82

%)ume (Cubic Feet): 5167 5563 5568 5555 5566

_ Analysis l .-

Sr-89 <0.0003 <0.0002 < 0. 00 C,2 <0.0002 <0.0002

l. Sr-90 <0.0003 <0.0002 <0.0002 <0.0002 <0.0002 Sei? 0.0470 2 0.0100 0.0450 2 0.0070 0.0550 2 0.0120 0.0450 2 0.0080 0.0300 2 0.0050 Co <0.0011 <0.0009 <0.0010 <0.0006 <0.0007 to-60 <0.0009 <0.0007 <0.0012 <0.0008 <0.0007 Zr-95. <0.0020 <0.0014 <0.0019 <0.0014 <0.0011 Cs 134 <0.0007 <0.0006 <0.0010 <0.0006 <0.0005 Cs-137 . <0.0011 <0.0006 <0.0011 <0.0006 <0.0006 Ba-La-140 <D,0023 <0.0011 <0.0022 <0.0011 <0.0010 Ce 144 40.0052 <0.0039 <0.0054 <0.0022 <0.0022 l

l

Notes l

E-6  ;

1 l

TABLE E3 HILK.(pC1/kg dry) 1991

~~~

CA-MLK-M1 CA-dLK-M5B Analysis (01/08/91) (01/08/91)

I-131 <0.4 ND Sr R9 -<0.4 ND Sr-90 2.7 1 0.4 ND K-40 1260.0 1 80.0 ND Zn-65 <12.2 NO Cs-134 <4.6 ND Cs-137 <5.0 ND Ba-La-140 <4.1 ND Ca (g/1) 0.85 ND CA-MLK-M1 CA-MLK-M5B Analysis (02/12/91) (02/12/91) 1-131 <0.2 ND Sr-89 <0.4 ND Sr-90 1.7 1.0.4 ND K-40 1160.0 ! 110.0 ND Zn-65 <12.9 ND Cs-134 <6.0 ND Cs-137 <6.1 ND Ba-La-140 <6.3 ND Ca (g/l)' O.90 ND Notes:

ND - No Data. See section 8.0 for explanation.

E-7

TABLE E3.(Cont.)

MILK (pCi/kg dry) 1991 CA MLK-M1 CA-MLK-MSB Analysis (03/13/91) '(03/13/91)

I-131 <0.3 ND Sr-89 <0,5 ND Sr-90 2.2 1 0.5 ND K-40 1020.0 i 110.0 ND Zn-65 <1l.S ND ,

Cs-134 <3.3 ND Cs-137 <3.5 ND Ba-La-140 <2.6 ND Ca (g/1)_ 0.65 ND CA-MLK-M1 CA-MLK-M5B Analysis (04/09/91) (04/09/91) _

I-131 <0.3 ND Sr-89 <0.5 ND Sr-90 2.8 1 0.6 ND K 1370.0 140.0 ND Zn-65 <10.3 ND Cs-134 <4.4 ND Cs-137 <6.0 ND Ba-La-140 <3.7 ND Ca-(g/1) 0.87 ND Notes:

ND = No Data. -See section 8.0 for explanation.

l E-8

TABLERE3 (Cont.)

t- MILK (pCi/kgdry) 1991 CA-MLK-M1 CA-MIK-M5B An-lysis -(04/23/91) (04/23/91) 1-131- <0.3 ND Sr-89 <0.6 ND I Sr-90 3.9 1 0.6 ND  ;

K-40 1330.0 ! 150.0 ND Zn-65 <16.7 ND Cs-134 <6.0 ND I

Cs-137 <6.6 ND Ba-La-140 <8.3 ND Ca (g/l) 0.91 ND CA-MLK-M1 CA-MLK-M5B Analysis (05/14/91) (05/12/91) 1-131 '<0.4 <0.4 Sr-89 <0.5 <0.6 Sr-90 3.0 1 0.5 4.2 0.7 K-40 1370.0 170.0 1630.0 ! 190.0 Zn-65 <22.8 <24.0 Cs-134. <6.5 <6.7

-Cs-137 <6.5- <7.7 Ba-La-140 <8.3 <l1.7 Ca (g/1) 0.93 1.01 Notes:

ND = No Data. See section 8.0 for explanation.

E-9

TABLE E3 (Cont.) ,

MILK (pCi/kg dry) 1991 CA-MLK-M1 CA-MLK-M5B Analysis (05/28/91) (05/27/91) 1-131 <0.3 <0.3 Sr-89 <0.6 <0.6 Sr-90 3.4 1 0.6 7.5 ! 0.9 K-40 1210.0 140.0 1580.0 i 160.0 Zn-65 <14.4 <11.2 Cs-134 <4.3 <4.7 Cs-137 <4.4 <7,0 Ba-La-140 <2.0 <5.6 Ca (g/1) 0.89 0.91 CA-MLK-M1 CA-MLK-M5B Analysis (06/11/91) (06/09/91) 1-131 <0.2 <0.3 Sr-89 <0.6 <0.7 Sr-90 5.3 0.7 5.4 1 0.7 K-40 1270.0 i 120.0 1720.0 180.0 Zn-65 <13.5 <22.4 Cs-134~ <4.7 <6.2 Cs-137 <5.6 <7.8 Ba-La-140 <3.8 <6.5 Ca (g/1) 0.88 0.90 Notes:

E-10

-TABLE E3 (Cont.)

MILK (pCi/kg dry) 1991 CA-MLK-M1 CA-MLK-M5B Analysis (06/27/91) (06/24/91)

-I-131 <0.2 <0.2 Sr-89 <1.0 <0.8 Sr-90 4.3 1 0.8 7.4 1 0.9

. K 1300.0 t 150.0 1770.0 i 150.0 Zn-65 <13.6 <16.0 Cs-134 <5.1 <5.6 Cs-137 <5.0 <5.8 Ba-La-140 <A.6 <8.7 Ca (g/1) 0.95 0.91 CA-MLK-M1 CA-MLK-M5B Analysis (07/09/91) (07/08/91) 1-131 <0.3 <0.2 Sr-89 <0.5 <0.6 Sr-90 2.6 1 0.5 8.4 1 0.9 K-40 1330.0 t 150.0 1540.0 t 160.0 Zn-65 <17.1 <22.4 Cs-134 <5.6 <6.2 Cs-137 <6.1 <7.0

-Ba-La-140 <7.9 <7.0 Ca (g/1) 0.86 0.87 Notes:

E-Il

f. y

.l-l TABLE E3 (Cont.) j MILK (pCi/kg dry) 1991 CA-MLK-M1 CA-MLK-M5B Analysis (07/23/91) (07/21/91) 1-131 <0.4 <0.3 Sr-89 <0.6 <0.6 Sr-90 2.7 1 0.5 3.4 1 0.5 K-40 1330.0 t 160.0 1850.0 1 190.0 Zn-65 <20.5 <19.2 Cs-134 <5.9 <6.0 Cs-137 <6.7 <6.8 Ba-La-140 <7.9 <9.1 Ca (g/1) 1.12 1.I' CA-MLK M1 CA-MLK-MSB Analysis (08/13/91) (08/10/91) _

l-131 <0.2 <0.4-Sr-89 <0.6 <0.6 Sr-90 4.1 1 0.6 1.6 1 0.4 K-40 1270.0 1 60.0 1910.0 2 100.0 Zn-65 <6.6 <10.2 Cs-134 <2.4 <3.5 Cs-137 <2.6 <3.7 Ba-La-140- <9.6 <14.9 Ca (g/1) 0.95 1.03 Notes:

l' l

E-12

w TABLE E3 (Cont.)  ;

1 MILK (pCi/kg dry) l 1991  !

s. i

~~

o CA MLK@l CA MLK M5B Analysis (08/25/91) (08/25/91) _

l-131 <0.3 <0.4 )

Sr 89 . <0.6 <0.6 Sr-00 3.9 1 0.7 5.7 1 0.8 K 40 1400.0 1 160.0 1760.0 1 180.0 7n 65 <17.6 <22.7 Cs 134 <6.4 <5.9 Cs 137 <6.6 <7.2 Ca La 140 <11.2 <l4.2 Ca-(g/1) 0.94 0.86 ,

h

'll. ,

.I m

~~"'

CA MLKMT- CA MLK M5B Ang] ysis (Mllp/91) (09/07/91) 1.131 <0.4 <0.3 Sr.09 <0.8 <0.6 Sr-90 2.3 1 0.4 4.5 1 0.6 K-40 1180.0 1 110.0 1670.0 i 180.0 20 65 <l5.6 <18.6 -

• Cr-134 <6.5 <6.8

... (s 137 <6.8 <7.5 it' 4; Ba La-140 <,.8 <8.7 ,

z.

I Ca (g/1) 1.00 1.01 Notes:

F E-13 g

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

TABLE E3 (Cont.)

HILK (pC1/kg dry) ,

1991

~ ~ ~ ~ ~ ~ ~

CA MLK M1 CA MLK;M5B Analysis (09/27/91) (09/27/91) .

1 131 4<0.4 <0.5 ,

Sr-89 41.3 <0.8 Sr-90 3.4 1 0.9 6.2 1 0.9

. K 80 1230.0 t 160.0 1840.0 t 140.0 .

Zn 65 <l5.0 <16.3 Cs 134 <4.7 <7.7 Cs-137 <5.3 <9.1 ,

Ba La 140 <6.0 <13.6  :

Ca (g/1) 0.80 0.86 '

CA MLK M1 CA MLK H5B Analysis (10/08/91) (10/06/91) ,

1-131 <0.3 <0.5 l

Sr-89 <l.0

<0.8 Sr 4.5 1 0.6 10.2 1 1.0 B

K-40 1260.0 1 150.0 lE60.0 i 160.0 t Zn-65 <13.3 <l5.8 L Cs 134 <4.4 <4.8 l- Cs-137 <5.2 <7.9 ba '.a-140 <4.8 <5.1 Ca (g/1) 0.91 0.75 Notes:

P E-14 I

..- - - . . g ,, , i..,,,_. _ w. , ,% ,4 3., , -

g - p ,mer p.v .9-,y.

_ _ ~ _ .

I 1

l l

5 TABLE E3 (Cont.)

HILK (pti/kg dry) 1991 CA MLK Hi CA-MLK-M5B Analysis (11/12/91) (11/10/91) 1-131 <0.2 <0.2 Sr-89 <0.6 <0.5 Sr 90 3.0 1 0.6 5.1 1 0.6 K-40 1240.0 t 160.0 1810.0 1 130.0 Zn-65 <24.0 <l2.5 Cs-134 <7.2 <4.9 Cs-137 <8,5 <5.8 Ba-La-140 <8.5 <5.6 Ca (g/1) 0.86 0.90 CA MLK H1 CA-MLK-H58 Analysis (l?/10491) (12/08/91) 1-131 <0.2 <0.3 Sr 89 - <0.6 <0.7 Sr 90 2.9 1 0.5' 5.9 1 0.9 K-40 920.0 1 100.0 1910.0 t 190.0 Zn 65 <l5.0 <24.7 Cs 134 -<5.2 <7.4 Cs-137 <6.1 <7.4 Ba-La 140 <5.1 <10.5 Ca (g/1) 0.63 0.88 Notes:

E-15

)

TABLE E4 VEGETATION (pCi/kg wct) 1991-

~

CA FPL-V3 CA FPL V3 CA FPL V3 MUSTARD TURNIP GREENS GREENS SPINACH Analysis (05/28/91) (05/28f.11) (05/28/91)

Gross Alpha 121.0 t 8e.0 <106.0 117.0 1 56.0 Gross Bet.s 4268.0 1 201.0 4486.0 1 195.0 6042.0 1 243.0 1-131 <24.2 <16.4 <41.4 K-40 3392.0 1 400.0 3600.0 1 275.0 6530.0 t 401.0 Mn-54 <18.3 (12.1 <23.7 Co 58 <16.6 <12.9 <25.0 Co-60 <14.1 <l5.7 <22.0 Cs-134 <13.7 <9.2 <20.8 Cs-137 <16.7 <10.1 <24.4

~

-~h-FPL-V3 C CA-FPL-V6 CA-FPL-V6 TURNIP LETTUCE SPINACH GREENS Analysis (05/28/91) (05/29/91) (05/29/91)

Gross Alpha 235.0 i 109.0 99.0 1 80.0 179.0 1 69.0 Gross Beta 3969.0 i 184.0 4860.0 1 198.0 4096.0 t 131.0 1-131 <43.5 <28.0 <l5.5 1

K 40- 3390.0 1 322.0 5905.0 2 555.0 3695.0 1 231.0 Mn-54 <24.4 <16.7 <13.7 Co-58 <27.0 <18.8 <13.1 Co 60 <22.8 <20.0 <16.1 Cs-134 <19.6 <!7.4 <9.6 Cs-137 <23.4 <17.7 ' <12.1 l

l Notes:

l E-16

1 1

TABLE E4 (Cont.)

VEGETATION (pCi/kg wet) 1991 CA-FPL-V6 CA FPL-V6 CA-FPL-V6 HUSTARD n" GREENS CABBAGE LETTUCE Analysis (05/29/91) (05/29/91) (05/29/91)

Gross Alpha 81.0 1 42.0 87.0 65.0 12/.0 1 59.0 Gross Beta 2159.0 1 88.0 2909.0 1 143.0 3185.0 1 117.0 I-131 <22.6 <24.2 <22.0 K-40 3206.0 1 396.0 3503.0 1 415.0 3050.0 1 334.0 Mn 54 <16.0 <18.7 <14.5 C0 58 <17.4 <19.7 <14.0 Co 60 <17.7 - <21.0 <14.8 Cs 134 <12.4 <11.7 <12.5 Cs-137- <17.1 <11.5 <!2.9 CA-FPL-V7 CA-FPL-V7 CA-FPL-V3 .

MUSTARD LifTUCE GREENS SPINACH An al ys i}_~ (0}/29/91) (05/29/91) (06/11/91)

Gross. Alpha 91.0 t 69.0 . 233.0 1 115.0 <!20.0 Gross Beta 3932.0 1 170.0 4487.0 2 200.0 6398.0 1 P60.0 1-131. <27.0 <20.6 <30.8 K-40 3596.0 1 321.0 3270.0 1 342.0 9430.0 1 754.0 Mn 54 <l3.2 <15.8 (24.2 Co 58 <14.3 <16.1 <24.0 Co-60 <12.2 <21.7 <27.6 Cs-134 <10.7 <11.3 <19.9 Cs-137 <!3.2 <14.1 <24.8 Notes:

E 17 -

i i

.. l TABLE E4 (Cont.)

VECETATION (pti/kg wet) 1991 CA-FPL-V3 CA FPL-V3 CA FPL-V3 TURNIP MUSTARD l GREENS CABBAGE GREENS ,

Analysis (06/11/91) _.(06/11/91 ) (06/11/91) <

Gross Alpha <165.0 <51.0 <122.0 Gross Beta 6177.0 1 306.0 2613.0 t 112.0 4904.0 1 232.0 1-13i <20.7 <16.4 <10.5 K-40 5650.0 1 267.0 2680.0 t 158.0 5657.0 1 266.0 Mn 54 <l5.9 <12.1 <8.5 .

Co-58 <16.1 <12.4 <8.4 1 Co-60 <l5.3- <10.8' <9.2 Cs-134 <13.8 <10.5 <6.2 Cs-137 <16.2 <12.8 <10.5 CA-FPL-V3 CA-FPL-V6 CA-FPL-V6  ;

TURNIP MUSTARD LETTUCE GREENS GREENS

., Ana1Ysis (06/11/91) (06/11/91) (06/11/91)

Gross Alpha 239.0 t 111.0 <123.0 <129.0 Gross Beta 4439.0 t 193.0 5286.0 1 215.0 5379.0 1 229.0 .

1 131 <9,7 <10.4 <19.1 K-40 4530.0 1 248.0 4440.0 t 271.0 6187.0 323.0 Mn-54 <7.7 <10.5 <11.4 00-58 <7.8 <10.7 <11.0 Co-60 <8.3 <11.5 <11.8 -

Cs-134 <6.6 <7.8 <9.9 Cs-137 <7.6 <9.4 <12.1 Notes:

E-18

i TABLE E4 (Cc.nt.)

VEGETATION (pti/kg wet) 1991

~~

CA IPL-V6 CA-FPL-V6 CA FPL-V7 LETTUCE CABBAGE CABBAGE Analysis .iQ6/ll/911 (06/11/91) (06/11/91)

Gross Alpha 176.0 i 101.0 156.0 1 47.0 366.0 1 156.0 Gross Beta 6206.0 1 237.0 2944.0 1 97.0 3903.0 1 214.0 1-131 <41.8 <8.8 <30.3 K-40 6876.0 t 850.0 3810.0 1 138.0 4050.0 1 284.0 Mn-54 <32.4 <5.8 <19.6 C0 58 <32.3 <5.8 <18.1 00-60 <34.5 <7.0 <18.0 Cs-134 <30.6 <6.2 <17.9 Cs-137 <30.9 <6.3 <18.2 CA fPL V3 {A-FPL V6 CA-fP!-V6 MUSTARD CABBAGE GREENS CABBAGE Avial ysi s (01/09/91) (07/22/91) (07/22/91)

Gross Alpha <46.0 131.0 56.0 <65.0 Gross Beta 2664.0 1 96.0 4542.0 i 122.0 2425.0 i 110.0 1-131 <20.7 <41.4 <26.4 K 40 2650.0 1 350.0 4230.0 1 403.0 2900.0 1 321.0 Mn-54 <18.9 <27.1 <21.7 Co-58 <17.2 <26.7 <22.1 Co-60 <19.7 <26.3 <21.4 Cs-134 <16.1 <28.) <20.2 Cs-137 <17.4 <29.9 <22.8 Notes:

E-19

i t

TABLE E4 (Cont.)

VEGETATION (pCi/kg wet) 1991 CA FPL-V6 CA-FPL-V7 CA-FPUV7 TURNIPS CABBAGE TURNIPS Analysis (07/22/91) (07/09/91) (07/09/91)

Gross Alpha 179.0 t 118.0 133.0 1 73.0 265.0 t 124.0 Gross Beta 4795.0 t 235.0 3182.0 t 126.,0 3357.0 t 175.0 1-131 <43.5 <31.1 <21.1 K-40 4240.0 1 469.0 2760.0 t 314.0 5406.0 1 443.0 Mn 54 <30.0 <20.5 <12.5 Co-58 <31.4 <20.5 <11.1 Co 60 <27.8 <23.9 <14.5 Cs 134 <31.0 <21.8 <9.4 Cs-137 <37.1 <26.2 <l5.5 TA-FPL-V3 CA-FPL-V3 CA-FPL-V6 TURNIP GREENS LETTUCE TUP. NIPS Analysis (08/13/91) (08/13/9i.L (08/12/91)

Gross Alpha <172.0 262.0 t 127.0 202.0 it 110.0 Gross Beta 5579.0 1 241.0 5150.0 1 227.0 6125.0 1 248.0 1-131 <17.6 <33.8 <32.2 K-40 6360.0 1 466.0 4880.0 ! 755.0 6240.0 1 828.0 Mn 54 <18.1 < 4 2 .~ 5 <42~.0 C0-58 <20.2 <42.9 <47.8 Co-60 <24.5 <44.6 <53.7 Cs-134 -<l5.3 <34.9 <32.7 Cs-137 <17.5 <38.3 <43.3 Notes:

E-20

TABLE E4 (Cont.)

VEGETATION (pCi/kg wet) 1991 CA-f)L-V6 CA-FPL-V7 CA-FPL-V7 cab 2 AGE CABBAGE TURNIPS Analysis (034l142)) (00/13/91) (08/13/91)

Gross Alpha <54.0 100.0 1 58.0 372.0 1 120.0 -

Gross Beta- 3395.0 1-132.0 2936.0 i 122.0 5035.0 1 178.0 1-131 <13.7 <12.4 <16.0 K 3650.0 1 408.0 1750.0 1 253.0 4135.0 1 343.0 Mn 54 <18.9 <14.6 <24.1 Co-58 <22.1 <14.8 <24.9 100-60 <25.2 <17.8 <2b.5 Cs-134 <14.5 <12.1 <19.6 Cs-137 <20.4 <12.7 <25.3

~~

CA-FPL-V3 CA-FPL-V3 CA-FPL-V3 TURNIP LETTUCE GREENS LETTVCE Analysis (09/10/91)- (09/10/91) (10/09/91)

' Gross Alpha 126.0 t 63.0- 292.0 i 124.0 <42.0 Grots Beta 3698.0 i 135.0 5158.0 1 209.0 3465.0 i 101.0 1-131- <24.7 <21.7 <26.3 K-40 -3500.0 1 452.0 4090.0 1 394.0 5550.0 1 535.0 Mn-54 <20.4 <l5.7 <23.4 Co <24.6 <16.4- <19.8 Co-60 <25.2 <18.0 <24.2

.Cs-134 <18.2 <l5.4 <19.2 Cs-137' <22.7 <15.3 <19.4 Notes:

E -

-w~ ~-m-r y - mn

, TABLE E4 (Cont.)

VEGETATION (pCi/kg wet) 1991 CA-fPL-V3 CA-FPL-V6 CA F9L-V6 TURNIP MUSTARD GREENS GREENS TURNIPS Analysis _ (10/03/91) (LOj06/91) (10/06/91)

Gross Alpha 42.0 t 25.0 <78.0 <92.0 Gross Beta 3518.0 1 70.0 5115.0 t 192.0 5019.0 1 172.0 1-131 <34.4 <35.4 <30.1 K-40 5690.0 1 622.0 4440.0 1 501.0 4360.0 1 431.0 Mn-54 <32.8 '<23.7 <18.1 Co-58 <27.6 <22.0 <20.1 Co-60 <34.2 <22.7 <18.8 '

Cs-134 <23.4 <19.9 <17,6 Cs-137 <30.6 <21.0 <17.5 CA fPL-V7 CA-fPL V7 TA-FPL-V7 LETTUCE' CABBAGE TURNIP.

Analysis (10/09/91) 0,040_8/91) (10/08/51)

Gross Alpha <64.0 . <114.0 159.0 1 50.0 Gross Beta 4028.0 1 120.0 4200.0 t 195.0 2017.0 1 67.0 l-131 <24.3 <22.2 <27.4 K-40 3930.0 416.0 3410.0 1 395.0 5040.0 1 448.0 Mn "i <18.6 <19.9 <17.4 Cc-58 <19.2 <18.2 <18.5 Co-60 <22.1 <20.9 <17.3 -

Cs-134 <16.6 '16.0 <16.0 Cs-137 <18.1 <19.8 <17.2 Notes:

I' E-22

TABLE E4 (Cont.)

VEGETATION (pCi/kg wet) 1991 CA- FFL-V7 CA-FPL-V3 CA FPL-V6 MUSTARD TURNIP MUSTARD GREENS GREENS Analysis (10/08/91) (11/05/91) (11/04/91) l Gross Alpha 360.0 i 154.0 595.0 1 227.0 377.0 i 111.0 Gross Beta 7323.0 1 253.0 7687.0 1 316.0 6386.0 i 183.0 1-131 <29.8 <l5.7 <22.9 K-40 5020.0 2 493.0 6870.0 1 397.0 5910.0 1 300.0 i Mn-54 <21.0 <l3.0 <19.4 -l '

Co 58 <22.5- <12.8 <13.9 Co-60 <20.2 <12.9 <16.1 Cs-134 <19.4 <11.7 <12.0 Cs-131 <20.2 <12.1 <13.2 CA FPL-V6 CA-FPL V7 CA FPL-V7 MUSTARD MUSTARD GREENS GREENS CABBAGE Analysis (11/04/91) (11/05/91) (11/05/91)

Grcss Alpha 416.0 1 178.0 453.0 1 202.0 77.0 1 32.0 Gross Beta 7333.0 1 294.0 8772.0 1 355.0 1591.0 1 58.0 1-131 <19.6- <l6.0 <13.3 K-40 6410.0 1 327.0 7440.0 t 442.0 3090.0 1 274.0 Mn-54 <11.0 <13.4 <9.8 Co <11.4 <13.1 <10.4 Co 60 <ll.6 <14.3 <11.0 Cs-134- . <10.9 <11.2 .<9.9 Cs-137 <10.9 <12.4 <10.C t'

Notes:.

E-23

TABLE E5 S0ll (pCi/kg dry) 1991 CA-SOL-fl CA 50L-f2 CA-50L-f6 Analysis (12/17/91) (12/17/91) (12/17/911 Gross Alpha 14052.0 1 4212.0 11805.0 1 5579.0 15414.0 1 4078.0 Gross Beta 25605.0 1 2733.0 21282.0 1 3531.0 17691.0 1 2094.0 K 11520.0 i 1271.0 12220.0 i 1008.0 11000.0 1 641.0 Mn 54 <60.0 <53.4 <35.5.

Co 58 <52.9 <43.6 <37.0 Co 60 <68.1 <56.1 <40.3 Cs-134 <51.8 <47.8 <47.9 Cs 137 1869.0 1 132.0 1524.0 i 106.0 582.0 1 44.0 c

CA 50L-f8 CA 50L-F9 CA SOL-PRIO Analysis (12/17/91.) (12/17/91) (12/17/91)

Gross Alpha 17898.0 1 4708.0 17421.0 1 3954.0 11752.0 1 5410.0 Gross Beta 23881.0 1 2605.0 24038.0 1 2224.0 23048.0 ! 3361.0 K-40 9792.0 1 786.0 10745.0 1 549.0 11440.0 1 1055.0 Mn-54 <45,4 <42.1 <48.6 Co-58 <36.7 <37.9 <53.3 Co 60 <44.3 <43.8 <50.8 Cs-134- <37.0 <37.0 <52.5 Cs-137 1713.0 1 95.0 1719.0 i 64.0 1255 0 i 110.0 Notes:

E-24 l

i TABL" E5 (Cont.)

S0ll (pCi/kg dry) 1991 CA S0L-PR3 CA 50L-l'R4 CA-50L-PR5 Analysis (l?/17/91) (12/17/91) (12/17/91)

Gross Alpha 8645.0 1 3720.0 15758.0 1 6100.0 14715.0 1 5803.0 Gross Beta 19236.0 1 2340.0 22505.0 1 3536.0 23255.0 1 3488.0 K-40 10100.0 1 668.0 11150.0 1 1002.0 11400.0 1 890.0 Mn-54 <38.1 <45.4 <43.6 Co-58 <41.2 <45.4 <34.0 Co-60 <46.5 <51 ' <54.0 Cs-134 <51.2 <51.J <40.0 Cs-137 868.0 1 58.0 1011.0 103.0 11!0.0 1 87.0 CA-50L-PR7 CA-50L-V3 Analysis (12/17/91) (12/17/91) _

Gross Alpha 12732.0 t 3792.0 10466.0 1 3882.0 Gross Beta 22172.0 1 2267.0 19091.0 i 2502.0 K-40 10900.0 1 800.0 14900.0 1 912.0 Mn-54 <43.7 <39.9 Co-58 <49.3 <46.5 Co-60 <56.5 <62.5 Cs-134 <64.6 <59.1 Cs-137 1390.0 79.0 375.0 1 43.0 Notes:

ND.= No Data. See section 2.3 for explanation.

E-25

TABLE E6 SURFACE WATER (pCi/1) 1991 >

LA-57A-501 UA-5WA-5U2 LA-5WA-5U3 Analysis (0)/08/91) (01/08/91) (01/31/91)

Gross Alpha 2.1 1 1.1 2.8 1 1.5 1.8 1 0.6 -

Gross Beta 6.7 1 0.8 5.8 1 1.0 6.1 1 0.6 '

H-3 <173.0 216.0 1 94.0 <174.0 Sr-89 <0.6' <0.6 <0.7 Sr-90 <0.4 <0.6 <0.5 Mn-54 <7-.9 <7.8 <4.9 Fe 59 <28.5 <14.4 <10.4 Co-58 <9.6 <7.7 <4.7 Co-60 <11.2 <7.2 <6.2 Zr-Nb-95 <13.4 <13.2 <9.1 Cs-134 <8.9 <8.1 <4.2 Cs-137 <7.6 <8.3 <4.4 Ba-La-140 <11.5 <10.9 <12.4 CA-5WA 5UI ~CA-5WA-502 LA-5WA-503

-Analysis (02/17,/9i1_ _ '0?/12/91) (02/08/91)

Gross Alpha <0.9 2.6 1 0.5 3.8 1 0.7 Gross Beta 4.1 1 0.6 7.3 i 0.4 6.8 1 0.6 H-3 <174.0 1*3.0 2 1 65.0 <174.0 Sr 89 <0.5 <0.4 <0.7 Sr-90 <0.5 <0.3 <0.6 ,

Mn-54 <l.7 <2.3 <3.9 Fe-59 <3.5 <5.0 <9,3 Co-58 <l.5 <2.4 <3.9 Co-60 <l.7 <2.4 <3.3 Zr-Nb 95 <2.9 4.2 <8.8 Cs-134 <l.5 <2.9 <3.3

'Cs-137 <1.8 <2.8 <4.0 Ba-La-140. <l.4 <3.3 <3.8 Notes:

E-26

TABLE E6 (Cont.)

SURTACEWATER(pCi/1) 1991 1

UA bWA-bO) LA-bWA-502 Ana1Ysis (03/12/91) (03/12/91)  ;

Gross Alpha 1.2 1 0.8 2.2 1 0.8 i Gross Beta 7.1 1 0.6 7.5 1 0.6 i H-3 <179.0 173.0 1 95.0 Sr 89 <l.2 <0.7 Sr-90 <0.9 0.7 1 0.3 l

Mn-54 <3.1 <6.3 Fe 59 <6.0 <l2.8 C0 58 <3.2 <6.2 Co-60 <3.6 <8.3 Zr Nb-95 <5.5 <11.3 Cs-134 <3.8 <5.3 Cs-137 <3.9 <6.3

-Da-La 140 <4.2 <7.0 LA bWA-bUI LA bWA-bU2 Analysis (04/09/91) (04/09/91)

Gross Alpha 2.9 i 1.4 1.8 i 1.2 Gross Beta 7.0 i 1.0 6.5 1 1.0 H-3 <l63.0 182.0 1 91.0 Sr-89 <0,5 <0.6 Sr-90 (0.4 <0.5 Mn-54 <7.6 <6.2 Fe-59 <14.2 <14.5 C0-58 <7.4 <5.8 Co-60 <6.9 <7.0

-Zr Nb 95 <14.2 <12.3 Cs-134 <7.5 <5.7 Cs-137 <7.3 <6.4 Ba-La-140 <6.0 <10.1 Notes:

ND - No Data. See section 8.0 for expanation.

E-27

TABLE [6 (Cont.) ,

SURFACE WATER (pCi/1) 1991 LA-swA-sVI LA SVKUU7 l Analysis (05/14/91) (05/14/91) .

1 Gross Alpha 6.9 1 1.9 1.6 1 1.2 i Gross Beta 8.4 1 1.2 6.4 i 1.0 i i

H-3 456.0 i 116.0 199.0 i 106.0 Sr-89 <0.5 <0.5 Sr 90 <0.4 <0.4 I i

Mn-54 <6.2 <5.9 '

Fe-59 <12.3 <l4.6 '

Co-58 <7.1 <5.9 Co-60 <7.9 <8.1 Zr-Nb-95 <12.1 <9.3 Cs-134 <4.9 <5.1 Cs-137 <5.5 <6.0 Ba-La-140 <12.8 <S.7 i

LA-5WA 5U1 LA-5WA-bU2 Analysis (06/11/91) (06/11/91)

Gross Alpha 2.7 1-1.5 3.1 i 1.2 Gross Beta 7.6 2 1.1 7.7 t 0.8 i

H-3 689.0 i 113.0 <177.0 Sr 89 <0.7 <0.8 Sr-90 0.5 1 0.3 <0.4 Mn-54 <8.6 <6.9 Fe-59 sl3.7- <13.1 Co-58 <8.1 <6.2 Co-60 <7.8 <6.4 Zr-Nb-95 <13.3 <10.5 Cs-134 <6.1 <5.1 Cs-137 <6.4 <5.8 Ba-la-140 <11.0 <11.5 Notes:

ND - No Data. See section 8.0 for expanation.

C.-28 l

i p.

TABLE E6 (Cont.) .

SURFACEWATER(pCi/1) 1991 LA-5WA-5U1 LA 5WA 5UZ  !

Analysis (07/09/911 (07/09/91)

Gross Alpha 11.2 1 4.6 7.8 1 2.2 Gross Beta 19.3 i 1.8 12.6 i 1.3 P

H3 390.0 1 104.0 <183.0 Sr-89 <1.1 <1.2 Sr-90 1.2 1 0.6 <0.4 ,

Mn 54 <5.0 <4.6 Fe-59 <11.9 <12.3 Co-58 <5.2 <5.4 Co-60 <6.0 <5.3 7r-Nb 95 <8.4 <10.0 Cs-134 <5.1 <5.4 Cs-137 <5.3 <5.4 -

Ba-La 140 <8.1 <12.2 L

CW'SWA dui LA-dwA.sve Analysis (0j/_]J/,jtl) (08/13/91)

Gross Alpha <2.1 2.6 1 1.7 Gross Beta 7.0 i 1.2 7.2 1 1.2 H <!83.0 339.0 i 104.0 Sr-89 <0.6 <0.6 Sr-90 <0.4 <0.4 Hn-54 <6.6 <7.4 Fe 59 <14.4 <l4.3 Co-58 <8.4 <7.6 Cc-60 <8.2 <6.7 Zr-Nb-95 <14.1 <13.8 Cs-134 <6.9 <8.1 Cs-137 <7.8 <8.6 Ba-La-140 <9.4 <10.4 Notes:

ND = No Data. See section 6.0 for expanation.

E-29

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

l i

l TABLE E6 (Cont.)

SURFACE WATER (pti/1) '

1991 l

LA-swA 501 LATSWAr!Oz ,

Analysii (09/11/91) (09/11/91) i Gross C iha 2.8 1 1.4 <l.8 Gross , eta 12.4 1 1.4 5.2 1 1.0 H-3 212.0 1 98.0 222.0 1 98.0 l

Sr 89 <0.8 <l.0 Sr-90 0.4 1 0.3 <0.6 6

- Mn 54 <7.3 <7.3 Fe-59 <l6.7 <15.8 Co-58 <6.7 <8.0 Co-60 <8.0 <7.7 I

Zr Nb-95 <14.1 <13.7 Cs-134 <6.5 <7.0

. Cs 137 <7.0 <8.0 Ba La-140 <14.8 <10.1 LK swA-dul LA-dwA7d uz Analysis (10/09/91) (10/09/91) ,

- Gross Alpha 1.3 1 0.7 5.6 1 1.5 Gross Beta 5.7 1 0.6 13.6 i 1.0 H3 <182.0 196.0 ! 98.0 Sr-89 <1.1 <l.0 Sr-90 <0.5 <0.4 Mn-54 <6.8 <9.2 Fe-59 <18.5 <18.3 Co-58 <6.9 <B.7-Co-60 <7.3 <8.1 .

Zr-Nb-95

<13.7 <14.6 Cs-134 <5.9 <7.8 Cs-137 <7.5 <9.5

, Ba-La-140 <8.4 <l3.3 Notes: '

- ND = No Data. See section 8.0 for expanation.

E-30 >

l

+, ' et t-r.s e,, - ._,-p,- - . . . _ . . -- ,,__,4 . - - - . - - . ..,r- -

, . . ..--w., . -,.,. - . . . - .%.-, -.y -- -.

1 I

TABLE E6 (Cont.)

SURFACE WATER (pC1/1) 1991

]

~

LA M AT501 LA-swA duz Analysis (11/12/91) (11/12/91)  ;

Gross Alpha <2.2 . (2.2 '

Gross Beta 5.0 1 1.3 4.7 t 1.3 H-3 <161.0 500.0 t 100.0 '

Sr-89 <0.8 <0.8 e St-90 0.4 t 0.2 0.4 1 0.2 Mn-54 <4.6 <6.3 Fe 59 <10.4 <9.7 C0 58 <4.9 <5.7 Co-60 <4.7 <6.1 Zr Nb-95 <7.7 (8.9 Cs-134 <4.3 <5.5 Cs-137 <4.9 <6.7 Ba-La 140 <5.3 <5.8 r L

i LA dwa-sui ~TAMA- duz Analysis (12/10/91) (12/10/91)

Gross Alpha 1.8 2 1.2 <2.6 Gross Beta 5.3 1 1.0 6.1 ! 1,1 H-3 <l59.0 284.0 1 90.0 Sr 83 <0.7 <0.6 Sr-90 <0.6 <0.4 Mn 54 <6.8 <6.8 Fe 59 <13.8 <l5.0 Co-58 <7.2- <7.0 Co-60 <7.6 <6.8 Zr-Nb-95 <l1.9 <14.7 Cs-134 <5.8 <6.8 Cs 137  ;<6.5 <8.3 Ba-La 140 <13.0- <11.3 Notes:.

ND - No-Data. See section 8.0-for expanation.

E-31

v l

l

)

TABLE E7 GROUND WATER (pC1/1) ,

1991  !

i LA WWA-UUI L A WA- t I b LA T ri-tub '

Analysis (01/08/91) (01/0B/91) (01/03/911 Gross Alpha 4.2 1 1.0 ND ND Gross Beta 3.4 2 0.5 ND ND H-3 <l73.0 ND ND Sr 89 <0.6 ND ND Sr-90 <0.4 ND ND t

Mn 54 <4.8 ND ND

! fe-59 <9.8 ND ND l Co-58 <5.0 ND ND l Co-60 <5.3 ND ND Zr Nb 95 <9.8 .ND ND Cs-334 <5.6 ND ND Cs-137 ~<5.3 ND ND Ba-La-140 <10.1 ND ND i

CA-WWA-UUl LA-WWA-t1b LA-WWA-FUb Antivsis (02/12/91) (02/12/91) (02/12/91) j LGross Alpha 1.4 1 0.7 1.6 1 0.7 1.9 2 0.7 i Gross Beta 3.4 1 0.6 8.7 1 0.7 11.9 1 0.7 H-3 <174.0 <!74.0 <174.0 Sr-89 <0.5 <0.6 <0.5 Sr-90 -<0.4 <0.5 <0.4 Hn-54 <3.2 <6.3 <4.1 Fe-59 <6.7 <l2.4 <9.5 Co-58 <3.6 <6.4 <4.0 Co-60 <3.6- <5.4 <4.9 Zr-Nb-95 <6.4 <l1.2 <7.3 Cs 134 <5.0 <6.0 <4.0 1 Cs-137 <3.8 <6.4 <3.8 j Ba-La 140 <4.7 <4.0 <5.0

" Notes: -

ND = No Data, See section 8.0 for explanation E-32 L

TABLE E7 (Cont.)

GROUNDVATER(pC1/1) 1991 LA-WA DDI LA WA Tid L A-WWW-TUd Analysis (03/12/91) (03/12/91) (03/12/91)

Gross Alpha 4.0 1 1.0 1.8 1 0.6 0.8 1 0.6 Gross Beta 3.2 1 0.6 9.3 1 0.5 11.2 1 0.7 H-3 <l79.0 <179.0 <179.0 Sr 89 <0.7 <0.6 <0.7 Sr-90 <0.5 <0.5 1.3 2 0.4 Mn-54 <6.5 <4.4 <3.7 Fe 59 <11.3 <10.2 (9.3 Co-58 <6.9 <5.1 <3.8 Co 60 <5.4 <4.9 <3.9 Zr-Nb-95 <13.4 <9.2 s6.8 Cs 134 <7.1 <4.3 <2.8 Cs 137 <6.8 <4.6 <4.3 Ba-La-It0 <5.0 <3.4 <l.7

' LA-WWA-vul CA WA~T1b I'A%VA t Ub Analysis (04/09/91) (04/09/91) (04/09/91)

Gross Alpha 3.) i 1.0 2.6 i 1.4 <l.9 Gross Beta 2.8 1 0.6 8.5 1 1.1 9.8 1 1.2 H-3 <168.0 <168.0 <163.0 Sr-89 <0.6 <0.6 <0.5 '

Sr-90 <0.5 <0.5 0.4 1 0.2 Mn 54 <6.3 <6.9 <6.8 Fe-59 <11.2 <l3.2 <12.5 Co-58 <1.0 (6.5 <7.0 Co-60 <6.1 <8.3 <6.4 Zr-Nb-95 <10.1 <11.3 <13.4 Cs 134 <7.8 <6.6 <6.7 Cs-137 <5.8 <6.4 <7.5 ,

Ba La-140 <9.6 <10.4 <5.3 Notes:

E-33

l TABLE E7 (Cont.)

GROUND WATER (pC1/1) 1991 LA wwA-UUI LA-WWA-tlb LA-WWA tU5 f nal ysis (05/14/91) (05/17/91) (05/14/91)

Gross Alpha 3.6 i 1.8 2.5 i 1.1 ND Gross Beta 3.1 t 0.7 9.7 1 0.8 ND

/ H-3 <197.0 <197.0 ND Sr-89 <0.6 <0.4 ND Sr-90 <0.4 <0.3 ND i.

Mn-54 <6.9 <8.2 ND >

Fe-59 <13.7 <13.5 ND Co-58 (7.1 <8.4 ND Co 60 <6.3 <5.8 ND Zr-Nb-95 413.8 <13.0 ND Cs-134 <8.5 <7.3 ND Cs-137 <7.4 <7.8 ND Ba-La 140 <6.6 <6.7 ND

~

La-wwA-ugJ CATWwA-tid LA-wwA-tod Anal ysi s ___ (0.7/09/91) (07/09/91) (07/09/91)

Gross Alpha .:1. 8 <l.6 <l.3 Gross Beta 3.2 1 0.8 9.0 t 0.7 12.1 i 1.1 H <T83.0 <183.0 <183.0 Sr-89 (1.1 <0.8 <l.0 Sr-90 <0.5 <0.4 0.5 1 0.3 Mn-54 < 5 .' 4 <5.8 <4.7 Fe-59 <ll.6 <13.5 <l1.4 Co-58 <5,4 <6.7 <5.4 Co 60 <4.' <6.8 <6.5 2r-Nb-95 <9. 6 <11.7 <9.9 Cs-:34 <5.7 <5.9 <5.1 Cs 137 <4.9 <6.6 <5.4 '

Ba-La-l?u (11.2- <13.4 <9.2 Notes:

ND = No Data, See section 8.0 for explanation E-34

TABLE E7 (Cont.)

GROUND WATER (pCi/1) 1991

~

L A - WW A !'? ' LA-WWA-tlb LA-WW57F05 Analysis (08/13/42' (08/13/91) (08/13/91)

Gross Alpha 2.4 1 1.6 <2.0 <2.2 Gross Beta 2.8 i 1.1 8.4 1 1.1 12.1 1 1.4 H-3 <183.0 <183.0 <183.0 Sr-89 <0.8 <0.6 <0.6 Sr oD <0.5 <0.4 0.6 1 0.3 Mn-54 <9.3 <7.0 <7.4 Fe-59 <l5.9 <16.5 <17.3 Co-58 <8.8 <7.1 <8.2 Co-60 <6.4 <5.7 <8.2 Zr-Nb-95 <14.8 <14.1 <l5.0 Cs-134 <9.1 <6.9 <8.2 Cs-137 <9.2 <7.1 <8.3 Ba-L c140 <10.9 <9.7 <11.1 LA-wwA-UUI ~CA;WWA-tib LA-WWA tud Analysis (10/09/91) (10/09/91) (10/09/91)

Gross Alpha <l.2 2.1 ! 0.9 <0.8 Gross Beta 1.5 1 0.6 9.0 ! 0.7 11.5 1 0.8 H-3 <182.0 <182.0 <182.0 Sr-89 <l.0 <l.0 <l.0 Sr-90 <0.4 <0.4 <0.5 Mn-54 <7.7 <4.4 <4.4 Fe 59 <18.2 <11.5 <9.0 Co-58 <6.3 <4.8 <4.7 Co-60 <7.8 <4.4 <4.2 Zr-Nb-95 <14.0 <8.4 <8.3 Cs-134 (7.3 <4.8 <4.5 Cs-137 <6.7 <4.3 <5.0 Ba-la-140 <7.8 <10.6 <8.4 Notes:

E-35

?

TABLE E8 BOTTOM SEDIMENT (pCi/kg dry) 1991 LA-Ay5 A LA-AQ3-L Analysis (04/29/91) (CA/29/91)

Gross Alpha 10930 2 3763 8466 1 2615 Gross Beta 23088 1 2757 19022 i 1863 Sr-89 <l1.8 <11.5 Sr-90 9.7 1 5.2 10.6 1 4.4 Mn-54 <56.9 <49.4 Fe-59 <147.0 <116.7 Co 58 <49.0 <42.8 Co-60 <73.9 <56.3 Zr-Nb-95 <101.8 <90.8 Cs-134 <53.5 <36.0 Cs-137 <67.0 <50.7 Ba-La-140 <138.7 <104.9

~

LA-AQ5-A LA-AUS L Analysis (10/29/91) (10/29/911 Gross Alpha <6276 17208 1 6127 Gross Beta 26424 1 3756 26101 1 3592 Sr 89 <16.2 <17.7 Sr-90 <6.2 31.0 t 7.3 Mn-54 <25.0 <25.2 Fe-59 <73.5 <78.3 Co-58 <26.7 <30.4 Co-60 <31.1 <28.5 Zr-Nb-95 <52.2 <54.5 Cs-134 <19.5 <35.7 Cs-137 <21.9 99.7 18.0 Ba-La 140 <72.3 <!81.0 Notes: ,

E-36

4 TABLE E9 SHORELINE SEDlHENT (pCi/kg dry) 1991 l

LATAUs-A LA-Aus-c Analysis (04/29/91) (04/29/91)

Mn 54 <38.9 <42.5 Fe-53 <99.5 <106.7 Co-58 <33.6 <48.1 )

Co-60 <48.0 <54.8 i Zr Nb 95 <80.0 <96.1 j Cs-134 <31.1 <40.8 Cs-137 111.0 t 46.0 <49.4 Ba-La-140 <65.8 <114.6 i a

LA-AQs-A LA-Ayd-L Analysis -(10/29/91) (10/29/91)

-Mn 54 <29.1 <37.3 Fe-59 <97.2 <171.6 Co-58 <35.6 <56.6 Co-60 <29.8 <43.4-Zr-Nb-95 <71.5 <113.5 Cs-134 <41.9 <32.9 Cs-137 <26.7 <39.7 Ba-La-140 <393.0 <373.8 Notes:

E-37

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

l i

1ABLE E10 l FISH, CA-AQF-A (pCi/kg WET) i 1991 ,

FRE5WAT[R RIV[R G12fARD CKUNCL ELUL ORLM CARP 50CLIR SHAD CAff!5H CATFISH '

Ansivsis (01/31/91) (01/31/911 (01/31/91) (01/31/91) (01/31/911 Gross Alpha <0,0 <0.0 <0.0 <0.0 <0.0 I Grcss Beta 40.0 =0.0 <0.0 <0.0 <0.0 l Sr*B9 ND N0 ND ND ND

$r 90 hD ND ND h0 ND K 40 < 0. 0 <0.0 < 0. 0 <0.0 <0.0 Hn 54 =0.0 <0.0 <0.0 0.0 <0.0 Fe 59' <0.0 <0.0 <0.0 <0.0 < 0.0 Co-58 <0.0

• 0. 0 <0.0 <0.0 <0.0 Co-60 <0.0 <0.0 <0.0 <0.0 <0.0 Cs-134 <0.0 <0.0 < 0.0 =0.0 < 0.0 Cs+137 .<0.0 <0.0- <0.0 <0.0 < 0.0 5HDRTM[A0 RIViR GI2ZARD SMALLHOUTH REDit0R5C GOLC[Y( CARP 5LCK(R SHAD BL'FFALD .

Analysis (02/05/91) (02/05/911 (02/05/91) (02/05/91) (02/05/91)

Gross Alpha <47.0 100.0 a 53.0 70.0 s 50.0 <67.0 < E0.0 Gross Eeta 2038.0 a 124.0 2370.0 s !!4.0 2545.0 s 119,0 2776.0 a 130.0 3124.0 a 141.0 5r 89 <7.2 <3.3 <9.1 <2.3 <3.8 5e+90 <5.6 <!.5 <t 9 <l.8 <2.6 r

s.-40 3157.0 a 432.0 1970.0 s ??6.0 2395.0 407.0 2962.0 s 299.0 2147.0 a 420.0 wn 54 <!7.1 <11.0 <20.6 <14.8 <15.7 ,

re 59 - <41.9 <30.3 <54.8 <30.0 445.2 Co-58 <17.4 <!3,3 <16.2 <13.9 < 17.6 Co 60 <20.6 <11.5 <21.6 <!4.1 <19.3 Cs 144 <12.5 <12.5 <16.3 <10.9 <14,9 Cs 137 <18.0 <12.2 416.0 <14.0 417.1 -

holes;

• ND = ho Data. See section 8.0 for explanation, 4

?

L 38

, . . , r, --m-[.

l --<[~-.,.... -

e 4 4 - - , . ,,,m-. -e . y .,. m3.,e m

, ,. ,._%-,',., , ,~m

i TABLE E10 (Cont.)'

FISH, CA A0F-A (pCi/kg WET) 1991 i

~

F LA1HEA0 BLUE RIVER FR[5WAl[R l CARP CAff!5H CAffl5H CARPSUCKIR ORUM Amelvsts (04/t9/91) (04/t9/91) (04/t9/91) (04/f9/91) (04/F9/911 Gross Alpha <39.0 < 5. 0 . Ill.6 : 44.0 <54.0 <77.0 Gross 6 eta 2814.0 a 63.0 2867.0 e 85.0 31tl.0 a 90.0 3036.0 s 103.0 2726.0 : 171 4 Sr-89 <t.6 <!.4 <3.4 <4.4 <t.6

$r 90 <1.7 el.4 <t.! 3.4 a 1.8 <1.5 t 40 2855.0 a 220.0 2600.0 s 428.0 2980.0 s 358.0 29tl.0 296.0 3004.0 495.0 Mn 54 <t9.1 <t0.6 <!9.0 <l4.3 <!3.7 Fe 59 <82.6 e64.0 <67.4 <44.2 <88.1 Co 58 <32.6 <!5.3 <!9.7 <!6.2 <20.7 Co 60 <!$.3 <!9.7 *19.1- <!4.1 <25.2 ts 134 <!4.6 <!7.3 <14.3 <12.0 <!7.5 Cs 137 <!8.5 <18.4 <l5.7 <12.6 <18.7 I

CHAkhtL FEtSWETIk RIVER LARCEMOUTH CAffl5M CAkP DRUM CARPSUCKtR BUFFALD Anahtis (10/30/91) (10/30/91) (10/30/91) (10/30/91) 11,0/!0/91)

Gross Alpha 105.0 s 51.0 95.0 e 50.0 <47.0 87.0 a 60.0 <54.0 Gross Beta 2977.0 s 116.0  !?64.0 s 85.0 2489.0 105.0 2698.0 a 124.0 FMI.3 s 110.0

$r 29 <3.9- <4.5 <4 ! <5.4 <5.8 5r 90 al.% <l.9 3.1 a 1.4 <!.4 <!.3 r 40 2598.0 s 356.0 2630.0 e 416.0 3360.0 a 393.0 26N.0 258.0 2678.0 a 432.0 kn 54 <l5.2 <!!.8 <20,5 <!6.4 <t4.8 fe-53 e63.7 <100.2 <94.0 <57.8 <86.2

-Co-58 <20.5 <t6.2 <t8.2 <t0.0 <!5.8 Cc-60' <l4.8 <!3.5 <c7.9 <!4.5 cl?.3 0e134 cit.5 <!7,8 <!!.9 <!2.3 <l5.1 Cs-137 ell.6 <tt.) <f0.0 cle 0 <!B.4 hotes:

E 39

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

TABLE E10 Cont.)

FISH, CA AQF.C (pCi/kg WET) 1991 FRf5 WATER RIVfR S!2ZARD CHlahtL BLUC DRUM CARPSUCLER SHAD CAlfl5H CATF15H Analysis (01/31/91) (01/31/91) (01/31/91) (01/31/91) (01/31/91)

Gross Alpha <0.0 <0.0 <0.0 <0.0 <0.0 Gross Beta <0.0 <0.0 < 0. 0 <0.0 <0.0

$r 89 ND ND kD ND ND 5t40 ND hD hD hD ND ,

K 40 <0.0 <0.0 <0.0 <0.0 <0.0 -

Mn 54 <0.0 <0.0 <0.0 <0.0 <0.0 Fe 59 <0.0 <0.0 <0.0 <0.0 <0.0 Co48 <0.0 <0,0 <0.0 <0.0 < 0. 0 Co-60 =0.0 <0.0 <0.0 <0.0 <0.0 Cs-134 <0.0 <0.0 <0.0 <0.0 <0.0 Cs 137 <0.0 <0.0 <0.0 =0.0 <0.0 GlZZARD 5HDRTHIAD 5HAD CARP GOLDIYC OLILLBACK Rt0 HOR $C Analysis (07/05/91) (02/05/91) (0?r05/91) , 102/05/91) (02/05/91) bross Alpha < 60.0 - 60.0 a 41.0 <36.0 48.0 23.0 93.0 : 40.0 G*oss Beta 2611.0 : !!6.0 272s.0 : 116.0 2210.0 84.0 2611.0 t 62.0 2623.0 a 90.0 tv-89 <5.8 <3.6 <3.1 <3.5 <3.5 Sr-90' <4.5 <2.8 <2.4 <3.C <2.8 K 40 2410.0' s 345.0 1620.0 a 358.0 2481.0 s 256.0 2535.0 a 202.0 2930.0 363.0 Pn 54 <!6.7 <!7.4 <!1.1 <!4.7 <!9.1 Fe-59 <43.9 <45.4 <!9.0 <39.4 <48.9 C0 58 '<21.4 <19.0 < 9.7 - <l5.7 < 21. 2 -

Co 60 <!7,1 <!8.9 <!3.5 <!4.6 <16.6 ts-134 <!6.4 <!6.2 <9.6 <l5.0 <ti.2 Cs-137 <17.7 <'6.9 cil.7 <l5.2 <21.1 hotes:

AD = ho Cate. See section 8.0 for explar,ation.

E 40 t

h e

TABLE E10 (Cont.)

FISH, CA AQF-C (pCi/kg WET) 1991

~

CHANNEL FLATHEAD FRE5HWATER river CATFISH CATFISH CARP ORUM CARPSUCKCR inal ysi s (04/?9/91) (04/?9/91) (04/?9/91) (04/?9/91) (04/29/91)

~

Gross Alpha 72.0 a 32.0 98.0 s 53.0 46,0 a 29.0 94.0 a 38,0 70.0 a 38.0 Gross Beta 2392.0

• 70.0 2732.0 t 116.0 2570.0 a 76.0~ 2635.0 s 76.0 7207.0 s 79.0 5r-89 <4.0 <13.6 <2.1 <2.6 <4.3 5r-90 <2.6 <8.2 <1.4 <1,6 <!.9 K-40 2374.0 s .66.0 2980.0 a 44*.0 3130.0 a 364.0 3050.0 s 333.0 2350.0 s 239.0 Mn 54 <24.7- < 3 0. 8 <!7 b <32.6 <15.7 Fe-59 <E2.3 <95.7 <38.8 <85.5 -43.0

-Co-58 <10.9 <34.6 <!B 5 <13.2 <17.2 Co-50 <2!.8 <30.8 <16.7 <22.9 <!8.3 Cs-134 <!6.5- <21.6 <14.0 <27.9 <14.9 Cs 137 <22.4 <21.9 <16.0 <27.9 <16.1 CHANNEL FRESHWATER - RIVER LARGEMOUTH CATFISH CARP DRL,N CARPSUCKER DUFFALD Amlysis (10/30/91) (10/30/91) (10/30/91) (10/30/91) (10/30/91)

Gross Alpha < 64. 0 a54.0 103.0 55.0 174.0 t 76.0 <64.0 Gross Beta 2623.0 t 95.0 2024.0 t 82.0 2672.0 s 116.0 2842,0 s 122.0 2679.0 s 101.0 5r-69 54.9 < 5. 5 <4.1 <2.6 <5.0 5r <2.3 <2.5 c'.7 <1.2 <2.2

- K 40 2907.0 s 404.0 2500.0 s 266.0 2440.0 a 339.0 2660.0 t 304.0 3233.0 487.0 Mn 54 <44,0 2 7.0 <21.2 <17.3 <22.0 Fe 59 <60.8 <63.2 <79.f - <59.7 <90.5 Co-58 *23.3 <23.1 <27.6 < 21. 7 - <28.5 Co-E0 <!4.3 < 16 .' <13.6 <20.0 <18.B Cs-134 <!2.0 <14.L cli.8 <13.7 <17.6 Cs-137 <16.3 <14.1 <17.8 <14.8 <21.9 hotes:

s E-41 1-l l

l-l L

Q; \

TABLE E10 (Cont.)

P FISH, CA-A0F-D (pCi/kg WET) 1991 FRCSHWAT ER RIVER GlIZARD CHAuEL BLut ,

ORUM- _CARPSUCKIR %H1.0 CATF15H CATF15H Asalvits' f01/19/91) (01418/91) (01/16/91) (01/18/91) (01/15/91)

Gross Alpha <34.0 44,0 a 30.0 .'O.0 44.0 59.0 a 20.0 57.0 s 28.0 Gross 6 eta 2749.0 s 81.0 2849.0 s 79.0 3315,0 s 104.3 0856.0 53.0 2751,0 14.C .

L 3r-89 <8.0 <3.3 <10.0 <3.4 <7.1 Sr-90 . <7.3 <2.6 <8.7 <2.7 <6.6

=K-40 2305.0 a 326.0 2910.0 a 338.0 2750.0 a 270,0 3678.0 s 288.0 2510 0 s 230.0 Hn 54 <12.5 <!6.9 _ <!1.8 <20.3 <10.7 Fe 59 <40.6 <37.6 <35.1 *C3.E <27.9 Co 58 <!2.4 <l5,2 <!3.1 <18.8 <10.8 Co 00 - <!3.8 <!6.4 <!2.3 <22.8 <12.0

<10.1 <!3,6 <13.8 <19.2 <9.9

."Cs*134 Cs 137: <!3.3 <!3.8 <13.6 <23.8 <11.4 RIVER G12ZAR0 BLUE LARGEMOUTH SE3RTNOSE CARPSUCKER SHAD CATFISH BUFFAl.0 G'2 >

-* 91vsts _ .; n. *6/91) 102/06/91) (02/06/91) (0?/06/91) (07/Of/91)

Gross Alph o  : 75.0 ' <81.0 <32,0 <49.0 <47.0 Gross Beta . i b' s 136.0 2717.0 s 143.0 2630.0 s 79.0 2595.0 s 127.0  ?!55.0 $ 104.0 Sr-89 N 4 <2.5 <9.6 <3.3 <5.1 5r-90 <, <l.7 <6.5 <2.2 <4.0

-K 40 2048.0 a 310.0 2724.0's 382.0 2250.0 s 315.0 2937.0 s 435.0 3090.0 s 343,0 Hn-54 <14.4 <9.9 <32.7 < 20.1 ' <l6.7 Te-59 <41.1 <53.2 <81.0 <55.0 <37.7

Co <14.7 <l5.2 < 3 6,7 <15.9 <!7.4

.Co-60 <!2.4 <16.8 <26.8 al7.8 <20.6 Cs 144 <12.8 . <13.2 <23.6 <16.8 <!4.7 Cs-137. <13.5 <!4.0 <29.7 <!B,5 <16.6 Notes:

E-42

TABLE Ell THERMOLUMINESCENT 00SIMETRY 1991' f!RS! CUARTER .SECOND QUARTER THIED QUARTER FOURTH CUARTER ANNUAL:

NET NET hET net WET

-flELD TGTAL EXP05tJRE -FIELD TOTAL EXPOSURE FIELD YOT A* EXPOSURE- ' FIELD TOTAL ' EXPOSURE FIELD TOTAL EYPOSURE-LOCATICW - TIMC EXPOSURE (MSEM/STD TIME LXPOSURE .(MREM /$fD TIMc EXPOSURF W EM/STD TIME EXPOSURE (MREVSTO TIMr' EEPOSURE (MREM /STO -- +

CODE- (DAYS) (MEM t 20) ol' t Zo) (DATS) (MREM t 20) 01R t 20) (D4YS) (MEEM t 2e) OTR t Zo) (DAYS) (** REM e 20) off f 20) (OAYS) (MBEM t 20)- QtR t 20)'

CA-!DM-01 78.0 13.4 t 0.7 15.4 2 0.8 89.0 15.1's 0.6 15.3 2 0.6 104 17.3 2 0.2 15.0 t 0.1 95.0 17.7 t 4J$ 16.8 a 3.8 366 75.4 2 9.0 18.5 t 2.2-CA-10M-02 78.0 14.5 t 0.3 16.7 2 0.4 80.0 15.5

• 0.3 15.720.3 104 16.8 e 0.6 14.5 2 0.5 95.0 15.7 e 0.8 14.9 e 0.7 366 73.1 e 2.1 18.0 t 03 -

CA-IDM-03 78.0 15.2 2 1.5 17.t t 1.8 89.0 16.6 1 0.8 16.8 2 0.8 104 .18.0 t 0.7 15.6

• 0.6 94.9 16.5 t 0.7 15.6

• 0.7 366. 30.6 e 3.5 lof e 0.9 :

CA-IDM-04 78.0 12.6 s 0.7 14.5 t 0.8 89.0 14.3 t 0.8 14.5 a 0.8 104 15.1 0.8 13.1 a 0.7 94.7 14.2 a 0.2 13.5 2 0.2 366 56.5 a 3.6 13.9 t 0.1 CA-!DM-05 73.0 11.9 e 0.5 SL8 $ 0.6 89.0 12.8 2 0.7 43.0 t 0.7 104 14.6 t 0.6 12.7 e 0.5 94.9 13.1 e 0.4 12.5

• 0.4 366 60.5 t 2.6 . 14.9.t 0.6 CA-IDM-06 78.0 14.6 t 0.7. 16.9 2 0.8 89.0 15.7 a 0.7 15.8 0.7 104 17.8 e 0.8 15.4 t 0.7 94.9 16.2 2 0.7- 15.3

• 0.6 366 64.7

• 0.9 15.9 a 0.2-CA-IDM-07 78.0 13.4 2 0.5 15.4 e 0.5 8?.0 15.6 e 0.3 15.8 0.3 104 17.7

• 0.8 15.3 t 0.7 95.1 16.4 s 2.4 15.6 t 2.3 366 62.5 t 3.3 15.4 a 0.9 CA-!DM 08 78.0 15.0 t 0.7 17.3 e 0.8 89.0 16.7 0.7 16.9 a 0.8 104 18.6 e 1.1 16.1 e 0.9 94.9 17.5 t 0.3 16.6 e 0.2 366 70.1 a 9.7 17.2 2.4 "

CA-10M-09 78.0 15.3 e 0.7 17.6 s 0.8 89.0 18.3 1.0 18.5 e 1.0 104 20.0 t 2.1 17.3 2 1.8 94.9 17.9 t 0.3 16.9 e 0.8 366 77.4 e 7.8 19.0 t ' .9 CA-IDM 10 78.0 13.9 0.8 16.1 t 0.9 89.0 16.1 t 0.5 16.3 1 0.5 104 17.9 2 0.9 15.5 a 0.8 94.9 16.3 n 0.3 15.5 t 0.3 366 64.1 2 2.2 15.8 t 0.5 CA-IDM-11 7S.O 15.4 e 0.5 17.8 e 0.6 89.0 17.4 s 0.9 17.6 t 0.9 104 19.3 a 1.1 16.7 t 0.9 94.9 18.2 2 0.4 17.3 t 0.4 366 69.2 e 1.2 17.0 t 0.3 CA- DM-12 78.0 14.7 t 0.4 16.9 e 0.5 88.9 17.9 e 1.1 18.2 t 1.1 104 19.2 2 1.3 16.6 t 1.1 95.0 18.0 t 0.6 17.1 0.6 366 117.2 2 25.0 2U.8 e 6.1 '

CA-IDH-13 78.0 14.2 a 0.7 16.4 t 0.8 89.0 17.6 a 0.5 17.8 t 0.5 104 18.6 2 0.4 16.1

• 0.4 94.9 17.4 2 0.7 16.5 t 0.6 366 68.8 e 2.6 16.9 a 0.6 CA-IDM-14 78.0 14.8 2 0./ 17.1 e 0.3 89.0 17.1 s 0.6 17.3 t 0.6 104 18.3 a 0.6 15.9 2 0.5 94.9 10 6 e 0.5 15.8 a 0.5' 366 71.2 9.0 17.5 1 2.2 ,

D.-!DM-15 78.0 14.3 e 1.2 16.5 + 1.4 89.0 15.9 2 6.6 16.1 t 0.6 104 18.0 t 0.8 15.6 t 0.7 94.9 16.4 2 0.5 13.5

• 0.5 366 64.5 t 2.5 15.9 t 0.6 CA-!DM-16 78.0 12.6 2 0.7 106 4 'i. 8 80.0 14.8

• 0.3 14.9 t 0.3 104 15.9 e 0.3 13.8 2 0.2 94.9 14.7 e 0.6 14.0 t 0.6 366 58.823.7 14.5 t 0.9 CA-!DM-17 78.0 14.0 2 0.3 16.1 t 0.4 89.0 16.0 2 0.6 16.1 m 0.6 104 17.3 t 0.6 15.0 t 0.5 9 ^. 9 15.8

• 0.5 15.0 t 0.5 366 84.2 t 12.2 20.7 t 3.0 CA-IDM-18 78.0 13.6 0.7 15.7 2 0.8 89.0 16.0 t 0.6 16.2 e 0.6 104 17.7 t 0 7 15.3 t 0.6 94.9 16.3 a 0.3 15.5 t 0.2 366 65.1 e 2.0 16.0 t 0.5 -

CA-IDM-19 73.3 14.7 e 0.8 16.9 t 0.9 89.0 18.2 t 1.8 18 4 e 1.8 104 17.8 2 0.3 15.4 a 0.3 95.0 21.1 a 4.0 20.0 e 3.8 366 95.2 e 3.5 23.4 t 0.9 CA-IDM 20 78.0 14.7 t 1.1 16.9 ? 1.3 89.0 16.7 1 0.9 16.9 e 1.0 104 18.6 t 2.0 16.1 1 1.7 94.9 16.8 2 0.6 15.9 t 0.5 366 71.1 e 9.0 17.5 e 2.2 CA-IDM-21 78.0 13.4

• 0.5 15.4 t 0.5 89.0 16.4 t 0.3 16.6 2 0.4 104 17.3 t 0.6 15.0 t 0.5 94.9 16.4 + 0.6 15.5 t 0.6 366 64.0 e 3.0 15.7 t 0.7 -

CA-IDM-22 78.0 14.7 s 0.6 17.0 t 0.7 89.0 17.7 2 2.2 17.9 t 2.2 104 18.5 t 0.7 16.0 t 0.6 94.8 17.420.6 16.5 t 0.6 366 84.6 2 8.7 20.8 e 2.1 CA-tDM-23 78.0- 14.3 t 0.4 16.5 e 0.4 89.0 16.2 e 0.3 16.4 t 0.3 104 18.8 e 2.1 16.3 1.8 94.9 16.8 2 0.6 15.9 2 0.6 366 76.2 e 29.5 18.7 t 5.1 CA-IDM-24 78.0 13.0 t 0.8 14.9 2 0.9 89.0 15.2 t 1.0 15.4 2 1.0 104 16.5 t 1.1 14.3

• 1.0 94.9 15.4 t 0.5 14.6 t 0.4 366 57.4 e 1.1 14.5 t 0.3 CA-IDH-25 78.0 14.0 t 0.6 16.2 2 0.6 89.0 15.6 e 0.7 15.8 2 0.7 104 17.6 a 1.0 15.2 t 0.8 04.9 16.3 a 0.5 15.4 t 0.5 366 65.4 2 1.7 16.1 a 0.4- t CA IDM-26 78.0 10.1 t 0.4 31.7 1 0.5 89.0 11.6 2 2.2 11.7 t 2.2 104 12.0 1 0.4 10.4 t 0.3 94.9 10.9 e 0.4 10.3 t 0.4 366 44.D e 3.8 13.8 0.9 Noten 1

__u .

c--

TABLE. Ell (Cont.)

.1HERM0 LUMINESCENT 00SlHETRY 1991 FIRST OUARTER SEC0kD QUAR 1ER YMIRD QUARTER FOURIN QUARTER ANNUAL WET NET WET NET WEi .

FIELD TOTAL EXPOSURE Fift0 TOTAL EXPOSURE FICLD TOTAL E XrCSURE FIELD TOTAt EXPOSURE FIELD TOTAL EFPOSURE LOCATION TIME ' EXPOSURE (MREM /STO 1 '6 E EXPOSURE (MREM /STD TIME EXPOSURE -(MREM /5fD TIME EXPOSURE (MREM /STD TIME EXPOSURE (MtEM/STD CODE (04YS) (MofM t 20) OTR t Zo) (OAYS) (MREM t 2o) OTR t 2o) (DAYS) (MREM t Zo) 01R t 2e) (DAYS) (FREN t 20) OTW t 20) (D9YS) (MREM t 20) OTR't 20)

CA-1DM-27 78.0 15.0 1.3 17.3 1.5 89.0 16.9 e 1.1 17.1 2 1.2 104 18.2 e 0.8 15,8 t 0.7 94.9 17.6 a 1.6 16.7 e 1.5 366 67.1 e 2.3 16.5 t 0.6 CA-tDM-28 78.0 14.6 1.2 16.8 e 1.4 $9.0 16.9 t 1.4 17.121.4 104 18.0 2 0.7 15.6 0.6 94.9 16.6 t 1.2 15.8 e 1.2 366 84.2 2 18.2 20.7 s 4.5 '

CA-!DM 29 78.0 13.1 a 0.5 15.1 t 0.6 89.0 16.2 m 1.9 16.4

• 2.0 104 15.9 e 0.7 13.8 t 0.6 94.9 14.9 0.4 14.1 e 0.4 366 66.5 e 12.4 16.4 3.1 CA 10M-30 77.9 ND ND 88.9 ND 16.0 t 0.4 104 ND 13.9 t 0.7 95.0 WD 15.1 s 0.3 366 No he CA-10M-31 78.0 14.1 t 0.4 16.3 a 0.5 89.0 17.4 e 0 A 17.6 2 0.4 104 19.1 2 3.5 16.5 t 3.0 95.0 16.6 t 0.7 15.7 e 0.7 366 65.0 e 1.2 16.0 a 0.3 CA-!DH-32 78.0 13.8 t 0.4 16.0 t 0.5 88.9 16.3 0.4 16.5 t 0.4 104 18.1 e 0.5 15.6 t 0.5 95.0 16.1 0.6 15.3 s 0.6 366 83.9 t 18.6 20.6 e 4.6

• CA-IDM-33 78.0 14.4 0.4 16.6 s 0.4 88.9 15.2 e 0.5 15.4 2 0.5 104 16.9 m 0.4 14.6 2 0.4 95.0 15.5

• 0.3 14.7 s 0.3 366 63.6 t 5.5 15.6 e 1.4 CA-10M-34 78.0 13.5 t 0.8 15.5 s 0.9 89.0 15.0 t 0.6 15.2 2 0.7 104 15.3 0.7 13.2 2 0.6 95.0 13.5 e 0.4 12.8 e 0.4 366 57.3 2 2.4 14.1 e 0.6 CA-IDM-35 ?3.0 12.5 2 0.5 14.4

• 0.6 89.0 14.5 t 0.6 14.6 0.6 104 16.1 2 0.7 14.0 t 0.6 95.1 14.3 t 0.4 13.5 1 0.4 366 59.3 e 3.3 14.6 0.8 CA-IcM-36 78.0 13.9 e 0.9 16.1 e 1.0 89.0 16.1 2 0.6 16.2 t 0.6 104 17.8 e 0.6 15.4 0.5 94.9 16.1 2 0.6 15.2 2 0.6 366 82.3 2 11.0 20.2 e 2.7 ,

CA-IDM-37 78.0 13.6 e 0.3 15.6 2 0.4 89.0 15.3 e 0.4 15.5 0.4 104 17.4 t 0.9 15.1 s 0.8 95.1 15.3 2 0.4 14.5 t 0.4 366 63.0 2 4.2 15.5 t 1.0 t CA-IDM-38 78.0 10.6 0.7 12.2 t 0.8 89.0 11.8 e 0.4 11.9 t 0.4 104 13.0 t 0.6 11.3 2 0.5 95.1 11.5 2 0.5 10.9 t 0.5 366 45.6 e 1.3 11.2 2 0.3 CA-!DM-39 78.0 13.7 s 0.9 15.8

• 1.1 89.0 16.4

• 0.6 16.6 1 0.6 104 17.4 t 0.4 15.1

• 0.3 95.0 18.2 4.0 17.3 a 3.8 366 93.8

• 4.5 23.1 2 1.1 CA-IDM-40 78.0 14.4 e 0.7 16.6 s 0.8 89.0 16.9 e 0.7 17.120.7 104 17.9 e 0.8 15.5 t 0.7 95.0 16.3 e 0.4 15.5 2 0.4 366 76.2 2 8.0 18.7 e 2.0 CA-IDM 41 78.0 13.1 2 0.6 15.1 0.7 88.9 15.0 t 0.5 15.1 a 0.5 104 21.9 t 8.5 19.0 e 7.4 95.1 15.0 a 0.2 14.2 a 0.2 366 67.4 t 2.4 16.6 e 0.6 CA-IDM-42 NO 12.1 s 0.9 13.9 e 1.0 88.9 17.0 t 6.5 17.2 2 6.6 104 15.3 2 0.7 13.2 2 0.6 95.0 13.5 t 0.5 12.8 e 0.5 366 70.3 e 14.1 17.3 e 3.5 CA-!DM-43 lo.O 13.4 t 0.6 15.5 t 0.7 89,0 15.5 t 0.4 15.7 e 0.4 104 17.1 t 1 0 14.8 t 0.9 95.1 15.6 t 0.7 14.8 0.6 366 62.8

• 2.2 15.4 2 0.5 CA-IDM-44 78.0 13.6 0.8 15.7 2 1.0 89.0 15.8 e 0.4 16.0 t 0.4 104 17.9 e 0.9 15.5 0.8 95.1 16.0 t 0.6 15.1 2 0.5 366 64.9 t 1.0 15.9 e 0.2 CA-!DM-45 78.0 13.8 t 0.6 16.0 s 0.6 E9.0 15.3 2 0.7 15.5 2 0.7 104 20.8 t 1.5 18.0 e 1.3 94.9 15.1 e 0.6 14.3 e 0.6 366 69.8 e 1.4 17.2 a 0.3 CA-IDM-46 78.0 14.4 2 3.7 16.6 2 0.8 89.0 16.1 t 0.6 16.3

• 0.6 104 18.6 e 1.2 16.1 e 1.0 94.9 16.e e C. 15.3 e 0.5 366 84.3 s 17.4 20.7 e 4.3 CA-IDM-47 78.0 14.0 2 0.4 16.1 t 0.5 89.0 15.2 0.6 15.4 t 0.6 104 17.1 0.9 14.8 e 0.7 94.9 15.5 t 0.3 14.7 t 0.! 366 -71.8 2 6.8 17.7 e 1.7 CA-IDM-48 78.0 15.7 2 1.1 18.1 e 1.3 89.0 16.4 2 0.7 16.6 t 0.7 104 17.9 0.5 15.4 t 0.5 94.9 16.4

• 0.7 15.6 2 0.7 366 66.8 2 5.0 16.4 e 1.2 CA-IDM-49 78.0 13.9 e 0.9 16.0 t 1.1 89.0 15.5 t 0.6 15.6 2 0.6 104 17.2 2 0.3 14.9 2 0.2 94.9 15.6 1 0.8 14.8 e 0.7 366 6Y.0 t 6.4 17.0 e 1.6 CA-!DM-50 78.0 1L9 t 0.4 16.0 t 0.5 89.0 16.7 2 0.8 16.9 0.8 104 18.4

• 0.8 16.0 t 0.7 95.1 17.322.5 16.4 e 2.3 366 64.9 2 5.6 16.0 t 1.4 CA-!DM-51 78.2 14.4 2 0.7 16.5 2 0.8 88.5 16.3 t 0.7 16.5 t 0.7 104 18.3 2 0.9 15.8 2 0.8 95.2 17.322.7 16.4 e 2.6 366 63.8 t 1.0 15.7 t 0.3 CA-IDM-52 78.2 13.9 s 0.4 16.0 t 0.5 88.8 16.0 2 0.8 16.2 2 0.8 104 18.1 e 0.7 15.7

• 0.6 94.9 15.8 t 0.6 15.0 s 0.5 366 63.4 t 2.1 15.6 t 0.5 Notes: 1. HD = tl0 Data. See section 2.3 for emptination.

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'\ 4 SECTION 4.0 NON-RADIOLOGICAL EN VIRONMENTAL' MONITORIN G s

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.t SECTION 4.0 UNION ELECTRIC COMPANY CALLAWAY PLANT

NONRADIOLOGICAL ENVIRONMENTAL MONITORING 1991 4., f

CONTENTS Section- Title 1.O Cultural Resources 2.0 Aerial Photographic Monitoring and Interpretation of Vegetation at callaway

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SECTION 1.U CULTURAL RESOURCES r

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1.0' CULTURAL' RESOURCES In accordance with Sections 4.3 and 5.4 of Appendix B to Facility Operating License No. NPF-30, a description of the implementation of Cultural Resources requirements follows.

Union Electric has submitted an amendment request dated 2/21/92 (ULNRC-2566) which_ proposes to revise the Callaway Facility Opcrating License NPF-30, Appendix B, Environmental Protection Plan (Non-radiological), by removing Sections 2.3 and 4.3, " Cultural Resources." Union Electric has developed and maintains a management plan for the protection of cultural-resources on the callaway Plant site including those withir the area of potential offects. This management plan was rsised and forwarded to NRC by letter dated 4/16/92 (ULNRC-2 62 0) . The amendment request provides the status and disposition of each portion of the present Appendix B which addresses cultural resources.

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4 SECTION 2.0 AERIAL PHOTOGRAPHIC MONITORING AND r

INTERPRETATION OP-VEGETATION AT CALLAWAY P

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2 .' O - AERIAL PHOTOGRAPHIC MONITORING AND INTERPRETATION OF VEGETATION AT CALLAWAY The final-report of the 1991 Callaw;f t.arial infrared vegetation monitoring study completed by Applied Biology, Inc..follows. This study was completed in order to fulfill the requirements of Section 4.2 of Appendix B to Facility oparating License No. NPF-30.

The vegetation monitoring conducted during 1991 was the fifth operational monitoring effort. As with prior efforts, no evidence of detrimental effects from cooling tower drift was found;. vegetation stress in the vicinity of the plant site was determined to be caused by natural factors.

A copy of tbe color photographic prints and color transparencias have been sent under separate cover to:

Mr. L. R. Wharton Office of Nuclear Reactor Regulation U. S. Nuclear Regulatory Commission 1 White Flint, North, Mail Stop 13E21 11555 Rockville Pike Eockville, MD 20852

AERIAL PHOTOGRAPHIC MONITORING AND INTERPRETATION OF VEGETATION AT CALLAWAY AUGUST 1991 FINAL REPORT NOVEMBER 1991 Prepared for UNION ELECTRIC COMPANY St. Louis, Missouri Prepar ed by APPLIED BIOLOGY, INC.

Decatur, Georgia

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r-TABLE OF CONTENTS EXECUTIVE SUMMAr1Y . . . ... .... . . ... . . . . . . lii

1.0 INTRODUCTION

. .. .... .... ... .......... . .. . .1 2.0 STUDY METHODS ,.. ..... ... .... . .. .. . ... . .. 3 3.0 RESULTS AND DISCUSSION . . . . .. ... . , , 9

4.0 CONCLUSION

S . . . . . ...... . . . . .. . .. . .... 17 5.0 LITERATURE CITED . .... ... ... .. , . . . .. . 19 l

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i-l EXECUTIVE

SUMMARY

I Environmentalinformation on the condition of vegetation at the Callaway site during the seventh year of plant operation was developed through infrared aerial photography, photointerpretation and ground truthing of stressed vegetation, vegetation mapping and phytopathological diagnoses of stressed vegetation during Ju'y and August,1991.

Ten terrestrial study plots were photographed with infrared film at a scale of 1' =

250'. Residuallands were photographed at a scale of 1" = 1000' Photointerpretation was performed based upon the differentialinfrared reflectance characteristics of heal-thy versus stressed tree cover. The infrared photographic record was then verified with a ground truthing field inspection. On-site and laboratory phytopathological diagnoses were made for stressed vegetation identified from aerial photography. A vegetation map was produced to show the location of stressed vegetation.

No evidence of the effects of drift from the cooling tower was found Vegetation stress in the vicinity of the plant sit e was found to be caused by natural factors such as oak wilt, insect damage, root and butt rot, and beaver girdling and damming. No distr;butional pattern of these diseases was identified during the study. Therefore, the foliar disease found in the Callaway vegetation during 1991 can be directly attributed to natural causes and not to operation of the Callaway cooling tower.

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1.0 INTRODUCTION

1.1 Purpose ,

Union Electric Company (UE), in response to Nuclear Regulatory Commission (NRC) mandate, has undertaken a program to monitor the potential impacts of cool-ing tower drift on the local flora surrounding the UE Callaway Plant in Callaway Coun-ty, Missouri. The goals of the program are to establish a record of baselir e and operational phase vegetation conditions at the Callaway Plant site using color infrared aerial photography, to document any naturally occurring vegetation stiess, and to determine if any vegetation damage can be attributed to operation of the cooling tower.

Interpretation of aerial photographs was used to prepare this information. This was supplemented by ground truthing to assure accurate interpretation of photographs and field phytopathological assessment to identrfy the causes of any vegetation stress en-countered.

Using these investigative methods, preoperational baseline environmental infor-mation on the condition of vegetation at the Callaway Plant site was developed during July and August,1984. Observations during the first, second, third and fifth years of plant operation were made during August,1985; July and August,1986; August,1987; and July, August and September,1989. During July and August,1991 monitoring was performed to assess the condition of vegetation during the seventh year of plant opera-tion. The results of these six years of monitoring complement other vegetation monitor-ing undertaken at the study site. Prior to the present program of infrared aerial photographic monitoring, classical field botany techniques were used to describe the 4

1 species composition of the vegetation community at the Callaway Plant. This work was ,

performed in 1973 19'/S; 1981, and 1983 - 1984, and concentrated on a set of per- -

manent terrestrial study plots.

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2.0 STUDY METHODS

- Applied Biology, Inc. (ABl) acted as coordinator for the infrared aerial photography, photointerpretation and ground truthing of stressed vegetation, vegetation mapping and phytopathological assessment of stressed vegetation conducteo at the Ca!!away Plant site in 1991.~

1 2.1 Aerial PhotogIaohv Aerial photography for this project was flown from 0835 to 0910 hours0.0105 days <br />0.253 hours <br />0.0015 weeks <br />3.46255e-4 months <br /> on 16 July 1991 by Wa!ker and Associates, Inc. of Fenton, Missouri. No cloud cover was present.

Atmospheric conditions were haze- and dust free. Color infrared film was exposed in a Wild RC-8 precision serial mapping camera with 6 inch focal length tens. Ten one-hectare tenestrial study plots were_ photographed with 60 percent forward overlap at a scale of 1" = 250. The residual lands of the p' ant site were photographed with 60 percent for.vard overlap and 33 percent side overlap at a scale of 1" = 1,000'. Over-lapping of photo frames is used to assure adequate ccverage that avoids any visual distortion or loss of infrcred photograph brightness that may occur along the edges of ar aerial photographic exposure. Duplicate sets of positive film transparencies and positive prints were produced in 9" by 9" format.

2.2 Photointeroretation Analysis of color infrared aerial photographs for the presence of vegetation stress is based upon the changes in infrared fo!iage reflectance that occur as a result of plant stress. A number of technical sources describe the theory and application of color in-3

l frared vegetation analysis and were used as a guide for the photointerpretation in this study. Plants under stress due to insect attack, disease or environmental conditions such as drought exhibit discoloration of their foliage on color infrared film because of loss of reflectance. This decrease of infrared reflectsnce occurs when normally highly reflectivo spongy leaf mesophyll cells collapse because of plant stress (Colwell,1956).

Vegetation color differences can be used to make inferences about plant vigor (Mur-tha,1982; Barrett and Curtis,1976). Healthy deciduous trees are highly reflective of the infrared light spectrum and appear as red and magenta in color infrared photographs,iEvergreen pines and codars at the site appear in shades of rerjdish grey.

Stressed vegetation, with leaf ye! owing apparent in normal spec,ral color photography, appears in shades of mauve, blue-grey, yellow and white in color infrared photography.

When vegetation is dead and dry, it appears as yellow and tan on color intnred photog-raphy.

Using these differential reflectances as signature guides, exarnination of photographs was parformed with simple magnification. Trees that were possibly in stressed condition were marked on photographic prints for subsequent ground truth-ing.

2.3 G~r ound Truthir.o I

Ground truthing of stressed vegetation was the process used to locate (with the aid of aerial photographs and topographical maps) potentially stressed trees recorded on aerial photograph prints. The conoition of these trees and the assessment made during phytopathological investigations were then correlated with the infrared 4

photographic signature in order to identify stressed trees. Ground truthing took p! ace on 24 and 25 August 1991.

2.4 Vegetation fdginnino After photointerpretation and ground truthing, the locations of stressed or dying trees were plotted on a map of the Callaway Plant site at a scale of 1" = 2,000' (Figure 1). Individual stressed or dying trees were represented by a diamond (+) on the vegeta-tion map. A considerab'e numbet of the trees that were plotted on the site vegetation map were inspected for photointerpretation ground truth correlation and phytopathologicai q.oraisal.

2.5 Phytocatholoolcal Investigations individual trees that were located at the Callaway site from aerial photograph plot-ting were appraised by plant pathoiogist Barbara Lucas Convin of Hallsville, Missouri.

The purpose of this appraisal was to provide diagnoses of the causes of vegetation stress found on specimens at the study site, Thc causes of plant stresses were

- categorized as environmental, disease, or insect. Plant species vs..y in their tolerance uf, or sensitivity to, adverse conditions brought about by any of the above categories.

It is pertinent to note that stress symptoms in plants, especially trees, can be very similar among the categories of causes mentioned above.

Freezing and thawing, drought, flooding, lightning damage, chemical injury, me-chanical injury, or high winds are all examples of environmental conditions that can result in stressed plants. These conditions may cause outright death of plants or may i

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Figure 1: Location of stressed and cying trees, Caneway Plant. Ju!y - August 19 91

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E stress them to a point where they are unable to withstand invasion by secondary dis-ease organisms or insect pests.

Disease is a condition in plants brought about as a result of invasion of plant tis-sues by other living microorganisms. Primary diseases, such as oak wilt end Dutch elm disease (DED), are caused by microorganisms that can invade healthy plant tissues.

These organisms consume plant supplied water and nutrient reserves for their own growth, thereby creating a stress on the plant. Secondary diseases, such as maple  !

- decline, are caused by.' disease complexes" that usually occur on plants that have al-ready been stressed from other auses. Disease complexes are generally caused by microorganisms that by themselves cannot invade tissues of healthy plants. When .

plants are stressed, however, their normal resistance to invasion by insect and disease

. organisms is lowered. The disease complex organisms then are able to invade plant tissues, causing further stress and/or death of the plant.

Insects may cause direct or indirect damage to plants that may result in stress.

Direct damage usually is a result of feeding on plant parts such as leaves, bark (cam- I biallayers), wood, or roots, Oviposition (egg-laying) is another type of direct damage that can restrict the flow of water or nutrients in the plant. Insects may also cause in-direct damage by serving as vectors of disease-causing organisms;lnsects feeding on diseased plants inadvertently carry spores of disease organisms to healthy plants.

The elements that were analyzed during diagnoses of stressed tree specimens were: history of forest management practices or herbicide application, site edaphic i conditions, condition of surrounding vegetation, recent meteorological record, and in-7

spection of tree leaves, branches, bark and roots. In addition to field observations, _

standard culturing procedures using twigs and small branches were carried out in the ,

laboratory in 1984 and 1987 in an attempt to recover the causal fungus in cases of ,

suspected fungal infestation. Samples were plated on two culture media: 1) oak wilt agar (Nutrimigen base) and 2) acid potato-dextrose agar. These laboratory procedures

. were inconclusive in 1984 and were not repeated in 1985 or 1986. In 1987, twig samples from tw. Oak specimens were again cultured in an attempt to isolate the causal fun-gus; The oak wilt fungus Ceratoevstis facacearum was isolated in 1987. Further at.

tempts to isolate this fungus were not repeated in 1989 or 1991.

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appeared as stressed aggregations on infrared aerial photography. In an area to the west of Vegetation Ecology Site 2, numerous trees appear as whitish, barren trunks on infrared aerial photography, These dead trees have been left standing on this site for some time and have been noted in the five previous annual reports on aerial photographic vegetation monitoring at the Callaway site. This area is not mapped as a tree riamage zone in this 1991 report since the observed trees at this location have been dead for several years and the area is now in a process of regrowth / recovery.

Selective cutting along the lowland timber edges, performed by the Missouri Depart-ment of Conservation in the general vicinity of Sites 3,4,5,6,8,9 and 10, was noted but was not mapped during the 1989 Callaway vegetation monitoring report. Some of these trees were observed during the 1991 vegetation photointerpretation and field sur-vey to be still standing as dead stems. August 24,1991 field investigations revealed that there had been very recent cutting and clearing of trees along the woodland / field edges in the general vicinity north of Site 2. This tre i clearing had apparently occurred since the July 16,1991 aerial photography flight at the Callaway site, because these dead or dying cleared trees were not visible on 1991 aerial photography. Because of their scattered occurrence these trees could not be effectively illustrated as a tree damage zone on the accompanying topographic map of the survey site. No other new

- tree damage zones were noted over the entire Callaway study site in 1991 vegetation monitoring.

Healthy eastern redcedar (Juniceips virainiana) and plantation grown white p,ne PPinus strobus), both evergreen species, displayed reddish grey coloration in infrared photography. A single recently dead white pine, overgrown with poison ivy vines which

-appear as pinkish white on infrared aerial photographs, was located in a cultivated 10

l 3.0 RESULTS AND DISCUSSION 3.1 Photointeroretation and Ground Truthina Analysis of color infrared aerial photographs indicated that the vast majority of deciduous trees at the Callaway Plant site were in good health as indicated by their in-tense magenta reflectance. Certain deciduous trees observed across the study site displayed somewhat lighter magenta or pink coloration or a light fringed appearance on infrared aerial photographs. Ground truthing in 1991 and in previous years has revealed these trees to be species such as red maple (A.pgr. rubrum), sycamore (Platanus occidentalis), persimmon (Digsp_vros viroiniana), cottonwood (Populus q[eh toldes) and mulberry (Morus rubra) that were in good health. Such trees possess a somewhat different infrared color signature than the deep magenta of the oaks and hickories that are dominant at the Callaway site. Deciduous trees that sinowed signs of stress reflected in shades of light pinkish mauve, grey and tan on infrared photography.

These deciduous trees were plotted as individual stressed or dying trees on the site vegetation map (Figure 1). The distribution of these trees showed no aparent patiern.

Ground truthing and phytopathological examination revealed that a variety of stress factors (detailed in Section 3.2) were affecting these trees. During previous years of vegetation monitoring, areas with relatively high densities of stressed, dying or dead dec,duous trees were observed on the aerial photographs. These areas were recorded in past years as tree damage zones on the site vegetation map. Field inspection revealed that these zones were subject to forest management practices carried out by the Missour: Department of Conservation in which less robust tree specimens or on-desired species were girdled by chain saw cutting. The culled dead and dying trees 9

stand just northwest of the complex of power plant buildings. As a whole, the stand of white pine was in fairly good condition but with some lower branch dieback, perhaps

. due to crowding and sunlight shading, as well as with some ongoing root and butt rot decline. Eastern redcedars were in good conditicn across the study site in general. ,

3.2 Phytocatholooical Investications Oak wilt (OW), a vascular disease caused by the fungus Ceratoevstis facacearum.

was diagnosed as the cause of stress in a number of oak specimens. All of the oak trees which were identified in the field in 1991 to be affected by oak wit: were black oaks 1

(Quercus y_elutina).. Diagnoses were based on symptom expression in the field.

Symptom development begins in the upper crown of infected trees. Leaves exhibit mar-ginal scorching, a moisture stress symptom, and often fall from the tree. Leaf scorch I symptoms develop because the fungus multiplies in the vascular system, effectively

- blocking the uptake of water. The disease develops rapidly in the red oak group (which includes black cak), sprcading throughout the entire tree. Infected trees in this group are often killed in a cingle season.

Once a tree dies, the fungus produces mycelial mats underneath the outer bark.

Be' mycelial mats, or " pressure pads", often split the bark, exposing the pad surface J

upon which spores are produced. The spores have a fruity odor that is attractive to the sap- and bark-feeding beetles that vector the fungus to healthy trees. Pressure pads are formed in the late summer of death if adequate moisture is available. If moisture is limiting, pads may not form until early spring if at all (Boyce,1957; Tainter and Gubler, .

1973). invasion of the oak-witted trees by secondary disease organisms inhibits pad 1

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formation (Shigo,1985; Ta!nter and Gubler,1973). Oak wilt symptoms were observed at Sites 1,2,5 and 8.

Dutch elm disease (DED), caused by the fungus Ceratoevetis ukpl has been iden-tified for several years at the Callaway site as a stress factor on American elm (Ultnyg

- americana) trees. Diagnoses were based on visual symptoms: witting, dieback of branches, and discoloration of the vascular system. DED is a vascular disease similar to oak wilt. It has been devastating on American elm (Ulmus americ.pna) and other na-tive species because it is caused by an " introduced" pathogen against which native American elms have not developed genetic resistance. Although DED has been en-countered for several years during Callaway vegetation monitoring, particularly at Site

- 9, no trees were located by 1991 aerial photointerpretation or ground truthing which were affected by this disease.

Another disease that was encountered was root and butt rot. Root ano butt rot was observed on plantation grown white pine (Pinus strobus) at Site 7. Root and but' rots are caused by a variety of fungl capable of attacking healthy trees and killing the roots and the living. bark'of the lower trunk. Mar'y of the root and butt rot fugi survive as saprophytes in cut stumps. They utilize the stump as an energy source for growth through the soll until a healthy root is encountered. These rots are inerefore common .

' in logged areas. Above-ground symptoms of root and butt rot are expressed as branch

. dieback and sparse, off-color foliage. Fruiting bodies (basidiocarps) of the causal fungi, when they owur, are usually formed in the fall. Decay and discoloration and fungal mats can be observed at the base of the trunk and on large roots just under the soil surface.

12 ,

The 1991 ground truthing of stressed vegetation identified by aerial infrared photography was conducted at the Callaway Plant site on 24-25 August. The purpose of the ground truthing, as in previous years, was to describe the causes of vegetative stress whether of environmental, insect or disease origin. No extensive laboratory isola-tions were necessary, although leaves of dogwood and persimmon were examined microscopically to verify field diagnoses. Following is a site-by site assessment of the causes of stress detected in 1991.

Site 1 Oak wilt, confirmed by isolation in 1987, remains active on this site. Symptoms in-cluded defoliation from the upper crown (slides 1 1,1-3), leaf scorch, and vascular dis-coloration (slide 1-2). No photograph was taken of a fourth oak that was completely dead, probably as the result of oak wilt.

Site 2 T"e dogwoods in the understory were expressing symptoms of a fungalleaf spot, ,

caused by Sectoria sp. (slide 2-0). Infection is favored by abundant rainfall in the early spring, which the area experienced in 1990 and 1991. The disease is not considered ser? Js, because severe symptoms do not develop untillate in the season. Specimen 2-1 was an oak exhibiting leaf scorch and defoliation characteristic of oak wilt (slide 2-1). Persimmons, specimen 2-2, were infected with a fungal leaf spot caused by Cer-cospora sp. This disease has been observed every year at all sites where persimmons are growing. It is a common disease almost always found in association with persim-mon. Infected leaves may yellow and drop early. Shagbark hickories were also exhibit-13 1

i ing symptoms of a funga! foliar anthracnose (slide 2 3), common wtiere the species i

occurs. Again, severe symptoms develop late in the season, causing trees to defoliate  ;

slightly earlier than they normally would. The last problem encountered on this site was ,

oak wilt (slides 21,2-4).

Site 3 The stressed trees detected on this site were dying honeylocusts, specimans 31 and 3-2 (slide 3-2). It is suspected that herbicide was used to selectively destroy this

• species.

Site 4 Specimen 41 was an eastern redcedar that had been intentionally girdled (slide 41). Shagbark hickories on this site had foliar anthracnose (slide 4-2).

Site 5 Two whhe oaks, specimens 51 and 5-2, were in a state of decline. A fungal twig blight and damage from a foliar feeding insect were evident (slides 5-1,5 2). Specimen 5-3 was a large white oak with a forked main trunk. Half the tree was dead. The bark had sloughed and cracked, suggesting physical damage as the probable cause. Av ditionally, black oaks on this site, specimens 5-4, 5-5 and 5-6, were exhibiting the characteristic symptoms of oak wilt.

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Sitt_Q Specimen 61 was 6 white oak de aged by lightning strike (slides 01). Specimen 6-4 was a white oak with symptoms of iron chlorosis tude 6-4). Iron chlorosis is r-iron deficiency symptom caused by reduced uptake of iron under high pH soil condi-tions. The oak was growing near a spoil pile dug from an adjacent limestone quarry, it

s Fkely that the soil pH on the site is very high due to 'eaching from this limestone debris.

Site 7 i

Only one recently dead pine, specimen 71, was detected in the pine plantation

) on this site. The infrared imaging was the result of poison ivy vines growing on the dead

, tree. The pine plantation has an ongring decline problem due to root and butt rot. A new stress was identified in an area approximately 1,000 feet cast and northeast of the pine plantation. A beaver cohny has become established in the area, resu! ting in death of trees due to girdling and to increased soil saturation or stream flooding caused by beaver dam construction (slide 7 2). Specimens 7 2 through 7 5 were black guns that had been girdled by the beavers. Specimen 7 5 was actually in standing water.

Specimen 7-6 was an American elm girdied by beavers.

S.te 8 Active oak wilt was observed on two black oak specimens (stides 81,8 2).

Specimens 8-3 and 8-4 were two large basswoods that had died recently (slides 8-3, 8-4). There was no sign of physical injury, diseasa or insect problem to account for 15

this. The problem may have been due to environmental effects, such as unfavorable steeply sloped terrain.

f2ilD 9 A large old silver maple located on an old house site continued to show evidence on aeria. photographs of dieback and decline. The condition has been ongoing for several years and is probably due to a combination of environmental stress and age of the trees. Several catalpa trees :0cated in an old fence row continued to show off-colo foliage conditions on aerial photographs. The trees have suffered damage in the past and have exhibited some branch dieback. The off color appearance is due in part toin3 Jamage ant - part to the species which tends to have a pale yellow green color in late summer. Because the same trees continued to show similar conditions on aerial photography, and because no newly stressed trees were apparent on aerial photographs, no on site phytopathologicalinvestigations were necessary at Site 9.

Site 10 An American elm (specimen 10-1) and a slippery elm (specimer,10-2) along a fence row were exhibiting severe foliar damage from elm '.eaf beetle feeding (slide 10-1). The trees were part of a group of elms located along an old fence row, adjacent to a home site, which showed stress from leai beetle feeding.

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4.0 CONCLUSION

S Although there was an increased incidence in foliar diseases this year, the unusual-ly wet springs in 1993 and 1991 account for this. Foliar diseases in genvral are favored by abu'idant rainicll early in the season. Oak wilt continued to be active on Sites 1, 2, 5 and 8. Now pro'clems encountered this year included damage from activities of a beaver colony on Site 7, severe elm leaf beetle feeding injury ori elms on Site 10, and

> iron chlorosis of white oak on Site G. There was no apparent directional pattern to the distribution of diseawd and stressed vegetation.

No directional patterns of stressed vegetation were noted, and no stress symptoms

- were found to be due to the effects of drift from the cooling tower. Overall, the*e was

, a moderate increase in the number of stressed trees discernible on infrared aerial photography in 1991 as compared to 1989, and a moderate decrease in the number of stressed trees in 1991 as compared to other previous years.

Most of the deciduous tree cover at the Callaway site is healthy and reflects in-tense magenta on infrared aerial photography. Those specimens that are stressed or dying are recognizable on color infrared photography because of their mauvish pink, grey or tan reflectance. Tree damage zones suffici6ntly large to be illust,ated on the topographic map of the survey site were not observed at the Callaway site in 1991.

However, tree cutting alcng woodland / field margins has been performed by the Mis-souri Department of Conservation in some limited areas in the general vicinity north of Site 2. Essentially all of the evergreen species at the study site (white pine und eastern 17

redcecar) are in good condition and are recognizable by their reddish grey infrared reflectance. Recently dead, defoliated evergreens are apparent because of their pinkish white or tan infrared reflectance.

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5.0 LITERATURE CITED Barrett, E.D. and LF. Cudis.1976. Introduction to environmental remote sensing John Wiley and Sons, New York.

Boyce, J.S.1957. Relation of precipitation to mat formation by the oak wilt fungus in North Carolina. P!t. Dis. Reptr. 41:948.

Colwell, R.N.1956. Determining the presence of certain cereal crop diseases by means of aerial photography, Hilgardia 26(5):223-286.

Murtha, P.A.1982. C.J. Johannsen and J.L. Sanders, eds. Pag is 139158 i.1 rRemote sensing for resource management. Soil Conservation Society of America.

Arkeny, Iowa.

Shigo, A.L.1958. Fungiisolated from Oak wilt trees and their effects on Ceratoevstis iaaacearum. Mycologia 50:757- 760.

Tainter, F.H. and Gubler, W.D.1973. Natural biological control of oak wilt in Arkansas.

Phytopathology 63:1027 1034.

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SECTION 5.(

PL ANT MODIFICATION ENVIRONMENTAL EVALUAT ON

SECTION 5.0 UNION ELECTRIC COMPANY CALLAWAY PIANT PIANT MODIF1 CATIONS ENVIRONMENTAL EVALUATIONS 1991

1.0 INTRODUCTIM In accordance with Appendix B, Section 5.4.1 of the Callaway Plant Operating License, the following report was prepared by Union Electric on all changes in plant design, operation, tests or experiments which involved a potentially significant unreviewed environmental question in accordance with Section 3.1 of Appendix B.

The report covers all plant modifications / changer that were completed f or January 1, 1991, through December 31, 1991.

During 1991 there were five plant modifications / changes that involved a potentially significant unreviewed environmental question. The interpretations and conclusions regarding these plant modification / changes along with a description of the changes are presented below.

2.O ENVIRONMENTAL FVALUl+TIONS 2.1 Callaway Modification Epck,aar 98-3034 2.1.1 Descrintion of Chance This change involved the addition of a foundation and compressor house enclosure to the plant south side of the service building. A trench drain was also installed south of the enclosure to an existing surface ditch.

2.1.2 Evaluation _gf Change The installation of the compressor house enclosure and trench drain did not result in a significant increase in any adverse environmental impact, since all measurable non-radiological environmental effects were confined to the areas previously distt rbed during site preparation and plant construction. Therefore, this change does not constitute an unreviewed environmental question per section 3.1 of Appendix B to the Callaway Plant Operating License.

2.2 Ren1Lest f or Resolution o e 3 72 2.2.1 Descrintion of Chanan The change involved the installation of a pre-nanuf actured metal building next to the UHS pond.

This building will be used for the storage of non-radioactive chemica' wastes.

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2.2.2 Evaluation of Chance The inctallation of the chemical warte storage building did not result in any adverse environmental impact, since all measurable non-radiological enviromnental effects were confined to the area previously d_sturbed during site preparation and plant construction.

Therefore, this change does not constitute an unreviewed environmental question per section 3.1 of Appendix B to the Callaway Plant Operating License.

2.3 Recuest for Resolutirn 09430 2.3.1 pescription of Change This change involves temporarily locating two sealand cargo boxes outside of the radwaste building roll-up-door on the northeast side. The cargo boxes --

will be used to temporarily store bagged radioactive I material during refuel 5.

2.3.2 Evaluatiaa of Change Temporarily positioning of the sealand cargo boxes to store radioactive material outside tre radwaste building does not impact any of the cultural resources of the area. The location of the cargo boxes is a position onsite that was already disturbed during site preparation and plant construction. Therefore, this change does not constitute an unreviewed environmental question per section 3.1 of Appendix B to the Callaway Plant Operating License.

2.4 Elant Procediure CTP-DE- 06112. Rev . J 2.4.1 Descris. tion of Changa This procedure describes a test to determine the effectiveness of adding Western Water 900N (ferrous sulfate) to "c" i...ake pump bay. The test was to be conducted f or several one week periods to determine if the additional contact time for the ferrous sulfate would improve coagulation or solids removal at the water treatment plant during periods of low river solids. Ferrous sulfate was to be addo.1 at a concentration not to exceed 10 ppm to "c" intake pump bay with two intake pumps running.

2.4.2 F331uation of Cunnna With two intake pumps operating and with administrative controls in place, there should have been no release of Page 2

this product to the river through the free discharge valve. Small amounts of ferrous sulfate would be released to the river for short periods each day via the desilting proceco and through the traveling water screen spray wash system. This product was previously approved by the Missouri Department of Natural f.esource (DNR) and is normally added to the water t reatment plant stilling basin. The Missouli DNR granted approved to conduct the test as described above.

Therefore, this change did not constitute an unreviewed environmental question per section 3.1 of Appendix 3 to the Callaway Plant Operating License.

Ferrous sulfate addition was initiated on January 26, 1992. However, due to a blocked line in the addition system, approximately 13 gallons of ferrous sulfate was released to the Missouri hiver at the intake structure.

Testing of the product at this location nas discontinued.

2.5 Plant Procedure ETP- AO-STQQ2, Rev. 0 2.5.1 Descrdotion of Change This procedure describes a test to evaluate the effectiveness of Morpholine for pH control in the secondary system as an alternative to ammonia. The test was conducted for 30 to 60 days beginning in mid October.

2.5.2 Evaluation of Changa During the test period 40 percent morpholine was stored in a 360 gallon porta feed located in the turbine building. A spill of this material was highly unlikely, however, if a spill were to occur it would be collected in the turbine building drain. Morpholine

,as not previously identified in the Callaway NPDES Permit. However, the Missouri Department of Natural Resources was notified of our intent to perform this test and did not have any objections. Therefore, this change does not constitute any unreviewed environmental questions per section 3.1 of Appendix B of the Callaway Plant Operating License.

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