ML19208B016

Environ Radioactivity Levels,Annual Rept,1978.

ML19208B016
Person / Time
Site:	Sequoyah
Issue date:	08/31/1979
From:	TENNESSEE VALLEY AUTHORITY
To:
Shared Package
ML19208B015	List: ML19208B014 ML19208B016
References
MRH-79-4-SQ1, NUDOCS 7909180448
Download: ML19208B016 (48)

Text

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TENNESSEE VALLEY AUTHORITY I~ '

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RH-79-4-SQ1 ENVIRONMENTAL RADIOACTIVITY LEVELS SEQUOYAH 'FICLEAR PLANT ANNI.k REPORT 1978 August 1979 n\(

CONTENTS Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Figure 1 - Tennessee Valley Region . . . . . . . . . . . . . . 3 Table 1 - Environmental Radioactivity Sampling Schedule . . . 4 Atmospheric Monitoring . . . . . . . . . . . . . . . . . . . . . . . 5 Figure 2 - Atmospheric and Terrestrial Monitoring Network . . . 7 Figure 3 - Local Monitoring Stations . . . . . . . . . . . . . 8 Figure 4 - Site Monitoring Stations . . . . . . . . . . . . . 9 Table 2 - Detection Capabilities for Environmental Sample Analysis . . . . . . . . . . . . . . . . . . . . . 10 Table 3 - Maximum Permissible Concentrations for Nonoccupational Exposure. . . . . . . . . . . . . 12 Table 4 - Radioactivity in Air Filter . . . . . . . . . . . . 13 Table 5 - Radioactivity in Rainwater . . . . . . . . . . . . 15 Table 6 - Radioactivity in Heavy Particle Fallouc . . . . . . 16 Table 7 - Radioactivity in Charcoal Filters . . . . . . . . 17 Table 8 - Radioactivity in Atmospheric Moistura . . . . . . . 18 Terrestrial Monitoring . . . . . . . . . . . . . . . . . . . . . . . 19 Table 9 - Radioactivity in Milk . . . . . . . . . . . . . . . . 21 Table 10 - Radioactivity in Vegetation . . . . . . . . . . . . 22 Table 11 - Radioactivity in Soil . . . . . . . . . . . . . . 24 Table 12 - Radioactivity in Well Water . . . . . . . . . . . . 25 Table 13 - Radioactivity in Public Water Supply . . . . . . . . 26 Table 14 - Environmental Gamma Radiation Levels . . . . . . . . 2/

.,ble 15 --Radioactivity in Food Crops . . . . . . . . . . . . 28 Taule 16 - Radioactivity in Poultry . . . . . . . . . . . . . . 30 Reservoir Monitoring . . . . . . . . . . . . . . . . . . . . . . . 31 Table 17 - Sampling Schedule - Reservoir Monitoring . . . . . . 33 Figure 5 - Reservoir Monitcring Network . . . . . . . . . . . . 34 Table 18 - Radioactiv Lty in Surface Water (Total) . . . . . . . 35 Table 19 - Radioactivity in Channel Catfish (Flesh) . . . . . . 36 Table 20 - Radioactivity in White Crappie (Flesh) . . . . . . . 37 Table 21 - Radioactivity in Smallmouth Buffalo (Flesh) . . . . 38 Table 22 - Radioactivity in Smallmouth Buf falo (Whole) . . . . 39 Table 23 - Radioactivity in Plankton . . . . . . . . . . . . . 40 Table 24 - Radioactivity in Sediment . . . . . . . . . . . . . 41 Table 25 - Radioactivity in Clam Flesh . . . . . . . . . . . . 42 Table 26 - Radioactivity in Clam Shell . . . . . . . . . . . . 43 Quality Control . . . . . . . . . . . . . . . . . . . . . . . . . . 45 Conclusions . . . . . . . . . . . . . . . . . . . . . . . . . . 45 e)1b n

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ENVIRONMENTAL RADIOACTIVITY LEVELS SEQUOYAH NUCLEAR PLANT 1978 Introduction The Sequoyah Nuclear Plant (SQN), being constructed by the Tennessee Valley Authority, is located on a site owned by TVA containing 525 acres of land in Hamilton County, Tennessee, bounded on the east by Chickamauga Reservoir. See figure 1. The site is 12 miles (19.3 kilo-meters) northeast of Chattanooga, Tennessee, and 11 miles (17.7 kilometers) west-northwest of Cleveland, Tennessee. The plant will consist of two pressurized water reactors; each unit is rated at 3,423 MWL and 1,171 MWe. Fuel load in unit 1 is scheduled for October 1979.

The preoperational environmental monitoring program has the objective of establishing a baseline of data on the distribution of natural and manmade radioactivity in the environment near the plant site.

TVA has collected data in this preoperational environmental monitoring program since 1971. Since the operation of the plant has been delayed, the program was reduced as of November 1,1973. All continuous collections (air and charcoal filters) were discontinued as were milk and monthly river water samples. Only quarterly samples of soil, vege-tation, well water, public water, river water, plankton, Asiatic clams, sediment, and fish, and annual samples of food products were collected.

The full sampling program was relastated in February 1976. The program outlined herein describes the sampling program as conducted in 1978.

Field staffs in the Division of Occupational Health and Safety, the Division of Water Resources, and the Division of Natural Resources Services carried out the sampling program outlined in tables 1 and 17.

Sampling locations are shown in figures 2, 3, 4, and 5. All the radio-chemical and instrumental analyses were conducted in a central laboratory at Muscle Shoals Alahama. Alpha and beta analyses were performed on Beckman Low Beta LI and Beckman Wide Beta II low-buckground proportional counters. Gross alpha and beta analyses are performed by counting an aliquot of prepared sample directly for alpha or beta. A total alpha con-89 centration is reported when heavy metals separated as a part of the Sr-

Sr separation process are precipitated, filtered, and counted for alpha.

Two Nuclear Data Model 100 multichannel analyzer systems employing sodium iodide, Nal(TE) detectors and one Nuclear Data Model 4420 in conjunction with germanium, Ge(L1) detection systems, were used to analyze the samples for specific gamma-emitting radionuclides. Samples 1P h

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2 of water, vegetation, air particulates, food crops, and charcoal (specific analysis for 331 1) are routinely counted with NaI(TE) detection systems.

If significant concentrations of radioisotopes are identified, or if there is a reasonable expectation of increased radioactivity levels (such as during periods of increased fallout), these samples are counted on the Ge(Li) system. Identification of gamma-emitting radionuclides in all other types of samples is routinely performed by analysis on the Ge(L1) system. TVA fabricated beta-gamma coincidence counting systems are 181 utilized for the determination of 1 concentrations in milk.

Data were entered in computer storage for processing specific to the analysis conducted. An IBM 370 Model 165 computer, employing an ALPHA-M least-squares code, was used to solve multimatrix problems asso-ciated with estimating the activities of the gamma-emitting nuclides analyzed by NaI(TE). The data obtained by Ge(Li) detectors were resolved by the ND-4420 software.

The detection capatilitiez for environmental sample analysis given as the nominal lower litits of detection (LLD) are listed in Table 2.

Samples processed by NaI(TE) garma a spectroscopy were analyzed for 13 specific gamma-emitting radionuclides and radionuclide combinations *. For these analyses, radionuclide combinations such as I 3'l 6 Ru and 95 Zr-Nb are anal) 7d as one radionuclide. All photopeaks found in Ge(Li) spectra were identified and quantified. Many of the isotopes identified by Ge(Li) spectralanalysisarenaturallyoccurring2ornaturally2producedradioiso-7 topes, such as Be, "O

K, 212B1, 21"B1, 2 Pb, 214 Pb, Ra, etc. LLD's for the analysis of the radionuclides listed below* are given in Table 2B.

LLD's for additional radionuclides identified by Ge(Li) analysis were calculated for each analysis and nominal values are listed in the appro-priate data tables. In the instance where an LLD has not been established, an LLD value of zero was assumed. A notation in a table of " - values <LLD" for an isotope with no established LLD does not imply a value Tess than 0; rather it indicates that the isotope was not identified in that specific group of samples. For each sample type, only the radionuclides for which values greater than the LLD were reported are listed in the data tables.

• The following radionuclides and radionuclide combinations are quantified by I"I'I""Ce; 5I Cr; 131 7; los,tos Ru; theALPHA-Mleast-squarescomgutercode:

'5 se 65 60 "0 I"0 13"Cs; 137 Cs; Zr-Nb; Co; "Mn; Zn; Co; K; and Ba-La.

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5 Atmospheric Monitoring The atmospheric monitoring network is divided into three subgroups. Two local air monitors are located within the plant boundary.

Eight perimeter air monitors are located at distances out to 11 miles (17.7 kilometers) from the plant in the towns of Sale Creek, Daisy, Red Bank, Harrison, and four other densely populated areas. The remote air monitors are located at distances out to 19 miles (30.6 kilometers) from the plant in the town of Dayton and the city of Chattanooga. See Figures 2, 3, and 4.

At each monitor, air is continuo:mly pulled through a Hollings-worth and Voss HV-70 particulate filter at a regulated flow of 3 f t / min 3

(0.085 m3 / min). In series with, but downstream of, the particulate filter, is a charcoal filter used to collect iodine. Each monitor has a collec'. ion tray and storage container to collect rainwater on a continuous basis, and a horizontal platform covered with gummed acetate to catch and hold heavy particle fallout. Moisture is collected from the atmos-phere at each local monitor and at one remote monitor and analyzed for tritium. Thermoluminescent dosimeters are used to record gamma radiation levels at each remote and perimeter station.

Each of the local and perimeter air monitors is fitted with a GM tube that continuously scans the particulate filter. The disintegration rate of the atmospheric radioactivity is continuously recorded at each station. These stations will detect any significant airborne release from SQN.

Air filters are collected weekly and analyzed for gross beta activity. During this period eighteen samples were not obtained because of equipment malfunction and six samples were not obtained because of severe weather. No analyses are performed until three days after sample collection. The samples are composited monthly for analysis of specific gamma-emitting radionuclides and quarterly for 89 Sr. Sr analysis. The results are presented in Table 4.

With reference to Table 3, which contains the maximum permissible concentrations (MPC) recommended by 10 CFR 20 for nonoccupational exposure, it is seen that the maximum beta concentration is 2.34 percent MFC.

This concentration occurred during a period of fallout from atmospheric nuclear weapons testing.

Rainwater is collected and analyzed for gross beta activity, specific gamma-emitting isotopes, and radiostrontium. During this period thirteen samples were not obtained because of sample unavailability, two contained insufficient quantities, and two were unobtainable because of severe weather. For the gross beta analysis, a maximum of 500 ml of sP

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6 the sample is boiled to dryness and counted. A gnmma scan is performed on a 3.5-liter monthly sample. The strontium isotopes are separated chemically and counted in a low background system. An aliquot of the quarterly composite is distilled and analyzed by liquid scintillation for tritium. The results are shown in Table 5. The highest value reported for beta activity is 3.88 percent of the MFC for drinking water. This concentration occurred during a period of fallout from atmospheric nuclear weapons testing.

The gummed acetate that is used to collect heavy particle fallout is changed monthly. Three samples were lost or damaged to the extent that insufficient material remained for analysis and two were not obtained because of severe weather. The sample is ashed and counted for gross beta activity. The results are given in Table 6.

Charcoal filters are collected and analyzed for radioiodine.

During this period one sample was lost, eighteen were not obtained because of equipment malfunction, and six were unobtainable because of severe weather. The filter is counted in a single channel analyzer system. The data are shown in Table 7, where the highest value reported is 0.08 percent MFC for 131 1.

An atmospheric moisture collection device containing molecular sieve is located at each local monitor and at one remote monitor.

Samples are taken every other week, the moisture driven off the molec-ular sieve, collected in a cold trap, distilled, and counted for tritium content. The results are shown in Table 8, where the highest value 3

reported is 0.005 percent MPC for H in air. In this reporting period, insuf ficient material for analysis was available in four samples, flow data was unavailable for six samples, and two samples were not collected because of equipment malfunction.

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o Table 2 DETECTION CAFABILITIES FOR ENVIR05MEh7AL SAMPLE ANALYSIS A. Specific Analyses NOMINAL LOVER LIMIT OF DETECTION (LLD)*

Fish, Vegetation Soil and clam flesh, Foods, meat.

Air Particulates Charcoal Fallout Water and grain Sediment plankton, Clam shells poultry. Milk pCi/m 3 pC1/m 3 mci /Km 2 pCf/1 pC1/g dry pC1/g, dry pCi/g. dry pC1/g. dry ECi/Kgm. wet pC1/1 0.4 0.01 1.5 Total a 0.7 Gross a 0.005 0.05 2.0 0.05 0.35 0.1 2.4 0.20 0.70 0.1 0.7 25 Cross B 0.01 3 330 H 0.5 l'1 1 0.01 40 10 0.25 1.5 0.5 5.0

Sr 0.005 10 0.05 0.3 0.1 1.0 8 2

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• All LLD values for isotopic separations are calculated by the method developed by Pasternack and Harley as described in HASL-300.

Factors such as sample size, decay time, chemical yield, and counting ef ficiency may vary for a given sample; these variations may change the LLD value for the given sampic. The assumption is made that all7 samples are analyzed within one week of the collection date. Conversion factors: 1 pCi = 3.7 x 10

• Bq; 1 mC1 = 3.7 x 10 Bq.

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Table 2 DETECTION CAPABILITIES FOR ENVIRONMENTAL SAMPLE ANALYSIS B. Canna Analyses NOMINAL LOWER LIMIT OF DETECTION (LLD)

Air Water Vegetation ' oil and Clam flesh Foods, tomatoes Heat and particulates and milk and grain sediment Fish and plankton Clam shells potatoes, etc.) poultry pC1/m 3 pCi/1 pCi/g. dry pCi/g. dry pCi/g, dry pC1/g, dry pCi/g. dry PCi/Kg, wet pC1/Kg, wet NaI* Ge(Li)** Ng Ge(Li) Nal Ge(Li) NaI Ge(L1) Nal Ge(L1) Nal Ge(L1) Nal_ Ge(L1) M Ge(Li) M Ge(Li)

I'I'2"'Ce 0.03 38 0.55 0.35 0.35 0.35 38 90 lCe 0.02 33 0.22 0.06 0.06 0.35 0.06 33 40 51 Cr 0.07 0.03 60 44 1.10 0.47 0.60 0.10 0.60 0.10 0.56 0.60 0.10 60 44 200 90 183 1 0.01 0.01 15 8 0.35 0.09 0.20 0.02 0.20 0.02 0.07 0.20 0.02 15 8 50 20 3 ' ' ' 1 ' Ru 0.04 40 0.65 0.45 0.45 0.45 40 150 IRu 0.03 40 0.51 0.11 0.11 0.74 0.11 40 90 3Cs 0.01 0.02 10 26 0.20 0.33 0.12 0.08 0.12 0.08 0.48 0.12 0.08 10 26 40 50 3 "Cs 0.01 0.01 10 5 0.20 0.06 0.12 0.02 0.12 0.02 0.08 0.12 0.02 10 5 40 15

'Zr-Nb 0.01 10 0.20 0.12 0.12 0.12 10 40

'Zr 0.01 10 0.11 0.03 0.03 0.15 0.03 10 20 "Nb 0.01 5 0.05 0.01 0.01 0.07 0.01 5 15

'Co 0.02 0.01 15 5 0.23 0.05 0.20 0.01 0.20 0.01 0.07 0.20 0.01 15 5 55 15 5"Mn 0.02 0.01 10 5 0.20 0.05 0.15 0.01 0.15 0.01 0.08 0.15 0.01 10 40

'5 5 15 2n 0.02 0.01 15 9 0.25 0.11 0.23 0.02 0.23 0.02 0.17 0.23 0.02 15 9 70 20

Co 0.01 0.01 10 5 0.17 0.06 0.11 0.01 0.11 0.01 0.08 0.11 0.01 10 5 30 15 "K 0.10 150 2.50 0.90 0.90 0.90 150 400 3" Ba-La 0.02 15 0.68 0.15 0.15 0.15 15 50 1 " Ba 0.02 25 0.34 0.07 0.07 0.30 0.07 25 50 3 "La 0.01 7 0.08 0.02 0.02 0.10 0.02 7 15

• The NaI(TI) LLD values are calculated by the method developed by Pasternack and Harley as described in HASL-300 and Nucl. Instr. Methods 91, 533-40 (1971). These LLD values are expected to vary depending on the activities of the components in the samples. These figures do not represent the LLD values achievable on a given sample. Water is counted in a 3.5-L Marinelli beaker. Vegetation, fish, soil, and sediment are countel in a 1-pint container as dry weight. The average dry weight is 120 grams for vegetation and 400-500 grams for soil sediment and fish. Meat and poultry are counted in a 1-pint container as dry weight, than corrected to wet weight using an average moisture content of 70%. Average dry weight is 250 grams. Air particulates are counted in a well crystal. The counting system consists of a multichannel analyzer and either a 4" x 4" solid or 4" x 5" well NaI(TI) crystal. The counting time is 4000 seconds. All calculations are performed by the least-squares computer program ALPHA-M. A assumption is made that all samples are analyzed within one week of the collection date.

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• • The Ge(L1) LLD values are calculated by the method developed by Pasternack and Harley as described in HASL-300. These LLD values are expected to vary depending on the activities of the components in the samples. These figures do not represent the LLD values achievable on given samples. O F Water is counted in either a 0.5-L or 3.5-L Marinelli beaker. Solid samples such as soil, sediment, and clam shells are counted irt a 0.5-L Marinelli beaker as dry weight. The average dry weight is 400-500 grams. Air filters and very small volume samples are counted in petrie dishes centered on the detector endcap. The counting system consists of a ND-4420 multichannel analyzer and either a 252,14 2,16%, or 292 Ge(L1) detector. The counting time is normally 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br />. All spectral analysis is performed using the software provided with the ND-4420. The asumption is made that all samples are analyzed within one week of the collection date, version factor: 1 pCi - 3.7 x 10-2 Bq.

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12 Table 3 MAXIMUM PERMISSIBLE CONCENTRATIONS FOR NONOCCUPATIONAL EXPOSURE MPC In Water In Air pCi/l* pCi/u/

• Alpha 30 Nonvolatile beta 3,000 100 Tritium 3,000,000 200,000 137Cs 20,000 500 103*IO'Ru 10,000 200 I""Ce 10,000 200

Zr Nb 60,000 1,000 1" l" 20,000 1,000 Ba La 131 300 100 I

65 2n 100,000 2,000 5"Mn 100,000 1,000

Co 30,000 300 8'Sr 3,000 300

Sr 300 30 5I 2,000,000 80,000 Cr 13"Cs 9,000 400 58 Co 90,000 2,000

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D 7 P E W e t t M 4 t 'M ATT VW WA @ WA WPM M AIA A W AMATW TW M - o e teCW *W *W W g wa W IJ .WO g e g eW4W eWI4 3aea

• 9 * *J ZJ2J2J ZJ 44 V w WJZJ k J 2 J C J' 2 J Z J a J Z J W JOJ1J 1J 4

• O E W J a J 31 3=Jm 3m Om rm>m 3 mom 3=Om3m mom 3m 3m m n P ZD1 A1 O

m N

m >

w 2 el n

r.

a rD2 D1 m e m P3 1

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.T CEfZ A m

• tAtAE>

I m 1fXOt e >

eE>1m A C w

>E 3 V 4 Ma% 1N 2N 03DH DT D202#1 D D>D2D ED If J e ID mA 2N I e rN IN 3N INmN I e3N 3%

4 1 NE *

• e4 og L D. 4

• 4 30 e 1 og eO34 e4 e3 e4 eZ +000 *

& MJ 3 IT E SIR [* An t t O e 1 JJ I DEm IVEDQmICJOZaQR Um

,? - - - - - - - - - - - - n - - - - -

Z t D D D D D D D D D D D D D D D D 3 J e 3N om77 3 3 %3 D e

3&a7 mNm9m Pmom3-mm*momN **3 **

f n m Duom@ J ~3J mcm% 3 o m N m O D m - OJ O wD e o e eJ eJ e e e o e e e e e e e e J e 4A INN NONON3v NOv NONO NONONCNONONON3NON DN3 vk No Us tt D D D D } D O f O O 7 N m 3 N L Dw 43 " n A o m D m m - A 4 , Ll JJ 'D W W =

P 4 J E 3 W

3 3 J *j 1 E 4 1-4

• 1 1 J w I J t w a 3 4 3V Y 7* 4 9m%% P4 mme '

mNN

~ 0 w I w l w t = 4 = 0

• i w I w l - 0 J -6 JH > > 'mO COOOOC D CSD C 3mc tNANtNmANmNmm*A 4*C9N4 mN 43 4 e o e e e e e e e e e e e e 0000-smO00000000-003 > Oc U

o e e e e e e o e e e e e e e o e e e e e e Jje 3 3 LOOOCC D 3 00 30 00 0C03? 303303 30o00 3o03D OO 31 m 3 3

> m 0 m =

'~  ?

mm e JH mm J J = 9 en m 2 A U 1 0 4 = =  ? O O O O O O O D O O O O T C O I O O T C wA JwpMa M N * *

• N m 4 m N N m m a m O 4 4 N 4 N UUQo 3 o o 3 O 3 O > O O O O > O O > 0 0 > O

% 1 dAo e e e e e e e B e e e e D e WO W e D e e A e wQ3 O O O 3 3 3 O W O O O O W O O 4 O O W D E E WM 4 2 o Q ) > > > >

23 J g 3 O O m O

• E s 4 L O

4 I C D 4 U

?

WD 3 N

• p oe O O@m7 Ca me I e 7 m J 4 1 A *a.4 4 m 4 4 -3 0 J 4 3 > 31> 4 - J m T W Z J alm Z *

• e Z O J 4QL w m o m *

• w - 4 O O M 4 N GJZ4 4 4 o m f D m 4 4 4 4 O D D m m m m

>4 4 WV 4 m m a m O o m N 4 m a a m - & & c M N N N

>> QW X m 1 0 0 O 8 0 0 3 0 0 I I I t 4 = 8 4 34M0 1 W 4 3 A 1 2 6 4 I J 4 4 4 3 2 L O

6 I m e E 4

~ 3 64 4 V D Y J N N M @ 4 U U Z J 2 N 2 g m  % D 1 t *D C C e a- .

- /4 _ 48

TanLt 4 (Contd) 1

- AL I.)ac il v l i v 1. u ld FILTEd eC1/*(3) - 0.GJ1 ou/M(3) +

aAet CF FACatIiv_;L20a V A n 00CKET N0. wa-74-*-Sul LOCATION GF FALILITY " MIL I M J1 3tS3tt wtP0wTING PER100 W le ___

TYPE AWD LonEw LI=lf -LL CONTMOL NUw4ER OF 1..o!CATV" LOCATio o "I I" M I b"E si A$Nu At_ = FAN LOCATIONS NONWCUTIaE TOTAL NuecE4 OF Lsfal.l'"*

OF ANALY515 OEftCTILN 8 dE=N (p g b Namt WEAN ( h MEAN FP WEPO4 Tt'd

__fEEESCEL (L.D) 3 _ - u dvyt b Idjlb[t_ gnu oIstC T ION wANGE{ 4ANG MAS M fE31S__

ve-212 NOT E5 TAM ______v.Olt 1/ los C0VNIY PA*M, TN 0.01( 1/ 21 4 VALUES <LLO C.01- u.uk J.fd MILts Sm J.01- 0.01 wt-7 0.050 v.ovt 10/ Ida uto-otloaN, TN 4.11( 1/ 2) 0.09( 2/ *) '

v,00- u.11 9.o *ILEd ENt 0.11- 0.11 0.08- 0.10 TE-132 NOT E5TA6 o.1=( b/ Its nomTMauOos TN u.23( 1/ 1) 0.18( 1/ 4) u.10- 0.23 lu.d 41LLS e5w o.23- 0.23 0.18- 0.18 '

AC-228 NOT ESTAe 15 VALLES <Llo 0.01( 1/ el O.01- 0.01 w Ns J.0C5 v.oct iv/ -us naww15uN, IN o.02( 1/ 4) 0.02( 2/ 8)

I

• e u.01- 0.ui n.ls ellts SSm 0.02- 0.02 0.01- 0.02 dw 9n 0.001 0.0u( le/ =0) Let SouTn=EST 0.00( 2/ 43 0.00( 4/ 8) ed 0.00- 0.00 u.75 r81Lt'S 5 0.00- 0.u0 0.00- u.00 ,.

a. Nominal Lower Limit of Detection (LLD) as described in Table 2.

b. Mean and range based upon detectable measurements only. Fraction of detectable measurements of specified locations is indicated in parentheses (F). ,

(

-1

p. .

-p .

d

(

TanLt 5 f

=AulOALTidlTr IN walanATEw etl/L = d.uJ7 HQ/L '

Navl G& *ACitilv_;IJuvv&n 00CRET NO. 4H-79-4-hgl LOCATION Gr EAtlLIIY " * *ll T o t.

IL33th5tt MtPORTING PEdlCO 1976 _ _ _

TYPE ANU Lv En Llali ALL TOTAL Numetw CONfa0L N0=HE4 UF LF INullalow LOLuTloN3 Lggallud_mITn nionEST ANNUAL MFAN LOCATIONS NONRouTINE OF ANALv515 UE TtC T IcN a . gas g, gb Nawt MLAN (Fib MEAN (F A rep 04TE0

_ ELFEDetLL' __lLLL1____ __ Ns L_b _ 93)yg3gg_33g_gistcyros sassgb ugg$g3g,L313,_

bwuSS Btla d.guo oANGEb l e . I 's t 101/ 107) mawwlduh, TN 35.09( 9/ 10) 11.65( 20/ 20) (.

127 4.7*- 11e.*e e.75 alltS 55= 2.74- 116.42 UAMMA (NAll 3.11- e6.28 103 Ct-141,144 i Je.000 c= watuts <tLD +4.93t 1/ 19) 6A-140.LA-140 15.0uo c3.vw; 44.93- 44.93 le/ m*) nasw150N oar. T* 31.43( 2/ 9) 18.77( 1/ 19) le.3e- Je.*J J.3 Mllts 5t 30.4d- 32.43 10.77- 16.77 90-103 106 40.000 .o.7ct </ -*) valsr, I .. *o.co( n)

• e.56-1/ 19 VALUES <LLO 40.8e 3.5 MILtS m 46.d8- 46.88 (

C5-134 10.000 11.*2( 1/ n*) LbuNTY vaaK. TN 11.*2( 1/ 9) 19 WALUES <LLD 11.4t- 11. < 3.75 alltS S= 11.42- 11.42 CS-137 10.000 14.60( 2/ t) nannI5LN, Ta 13.le( 1/ 9) 19 WALUES <LLO f te.ue- IJ.le H.75 ditts SS= 13.1o- 13.16 2H-95,No-95 10 000 du.7e(

li.22-3/

c5.07 c*) UAlsy. TN S.5 wlLES =

25.07(

25.07-1/

25.07 d) 19 VALUES <LLD #(h 8 i

I-131 15.000 2*.u2( 6/ e) val 5Y, TN Jd.I4(

17.0v-1/ of 19 VALUES (LLD 32.7* 3.5 t41 L E S = 32.74- 32.74 BE-7 NOT ESTad 37.07( J6/ e*) L 91 50uTN=EST 69.25( 5/

10.le-

9) 36.71t 9/ 19) t 140.05 0.75 plLtS d. 26.11- 140.05 20.21- 67.53 6Auwa (GELI) 26 m-40 NOT EsTAe 133.J64 12/ (5) '.Ow i n e vud S . TN 332.60( 1/ 1) 108.20( 1/ 1) re.4e- Jac.nc 19.3 allts 5a JJ2.60- 332.60 HI-214 NOT ESTA6 108.20- 106.20 le.7e( 17/ 25) NONT9 000s. TN 29.4HI 1/ 1) 1 VALUES <LLD v.36- 49.*H 10.5 Mlltd wS= 29.*B- 29.46 vo-214 NUI LSTA8 1*.914 11/ 25) munie.0005, TN 20.60( 1) 7.oJ-1/ 1 VALUES <LLO du.71 lu.5 MILLS aba 23.40- 20.40 t PH-212 NUT ESTao 10.12( 3/ 25) uAISY, TN 12.41( 2/ 3) 1 VALUES <LLO I.56- le.u3 5.5 mlLt5 a 6.79- 16.03 nt-7 NOT tdlAH d7.%7( 11/ tb) COUNTY JAWK, TN 220.50( 2) 13.03- 220.5U 1/ I v4 LUES (LLO t AC-22M J.75 MILLS Se 220.50- 220.50 15.000 41.07( 1/ th) UAISY, TN 41.07( 1/ 3)

• l.07-1 VALUES (LLO

• l.0/ 5.3 *ILES a 41.07- 41.07 sw -9 10.000 15.11( J/ 100) nuMK, TN i

19.04( 1/ 11) 20 VALUES <LLO

%7 12e Ic.06- 19.u6 *.5 MILES NNL 19.04- 19.04 s sgw 9n 2.000 3.02( lu/ 108) NARWl5LN, TN 5.39( 1/ 10) 2.48( 2/ 20) (

,s les i.us- 5.39 H.15 wilts 55a 5.39- 5.39 2.29- 2.67

"'TRITluw JJ0.000 Je w .10 ( J/ <d) et41*LTE< wuNTH. 368.00( J/ 11) 488.00( 2/ 11) 33 375.00- 399.00 ComvodlTES 375.00- 399.00 433.00- 543.00 N.ab. Nominal Lower Limit of Detection (LLD) as described in Table 2.

Mean and range based upon detectable measurements only. Fraction of detectable measurements of specified locations is indicated in parentheses (F).

LJ' .

C-'

(

TAnLE 6 (

=AuluacTIvlTY IN ntAwY PAdTICLE FALLOUT I

PC1/nmid) - 3 T000000.00 %/p td)

NANE OF FACILITY _3tyucVar (10CnE T NO. HH-79-4-Sul (.

LOCATION OF F ACILITY maplLTUA TENNE 5 set HtP0HTING PLR100 1976 _ ___

TYPE AND lumen LIMIT ALL CONTHOL Nuw8Ed 0F NONROUTINE '

TOTAL NumbEh 0F LOCATIONS a INDICATUN

• E" LUCA{lbN3 (F ) LCCAllii3 =ITn rtI6mt sT A e.Nu AmEAN NAat t

• FAN (F)b MFAN (Fa b REPOWTE0 CF ANALY5!S OtitCTICN gg3Suwf*ESIS _

- A Nutb uhl!Laa9_Dht.C T I ON wAmsEb quse b

__LTEE91"Lv J LLui 21/ 213 4 GkOSS HETA 3.050 C.oS( lle/ Iles n0HA. Ti u.vot 12/ 123 0.d1(

139 0.09- 3.d4 4.5 mlLtS NNE 0.11- 3.22 0.09- 2.43

a. Nominal Lower Limit of Detection (LLD) as described in Table 2.

b. Mean and range based upon detectable measuremen6s only. Fraction of detectable measurements of specified locations is indicated in parentheses (F).

o k

s s -

/ '~

g i .- ,

=  %

w f

i

/ (

Ny - .,

q

-f t

s -

J _ - .- ,

, p. , _ . r

/ _

p

~ -

T AtsLt 7

(

WAuluACTIVITY IN CNANCOAL FILTENS '

PCI/*(3) - 0.o37 NG/Mt3D <

f NAet GF FACILITf_;tsuovar f 00CMET NO. 4M-79-4-sul LOCATION OF FACILITr m alW3 TtNNESStt hep 0kTING PERIOD _19fo 8 TYPE AND LueEx LIMIT #LL idTAL NO"6Ea CF CuNTHOL NU"BER CF INu!CATOw LOCATIONd M d oN nITm wIowFST ANNuAt wFAN LOCATIONS NONROUTINE (

OF ANALYSI5 OE TECT!UN a StaN IF a b gapt . gag gp pb MEAN (Fib 4EPORTED

_J2EDEtt,Q JLLul _ -Abbt b Lhl6Cf J w o f wEc t10s waNGE b _

Ibe3NE IN Ala 0.010 3d/ 51)_

J AN3Eb , _ _ g[g3Q3Eg[313,,,

S99 0.024 314/ 5u*) LM1 SOUTn EST o.028 > 'O.02( 55/ 951 f

,. 0.01- 0.rm u.75 MILES S= 3.01- 0.07 0.01- 0.06 s -

~

a. Nominal Lowera Limit of Detection (LLD) as described in Table 2.

b. Meau and range ;ased upon detectable measurements only. Fracticn of detectable measuret ent + cf specified locations is f ndicated in parentheses (F).

~

fp .

\

-,5

(

. LJ1 ~.

L

TAdtt 8

.aoluALTIvliv IN AISOSPHt4IC MOISTURE g eCI/will - 0.937 ow/P(3)

NAME OF F AL it li vjgi.vvV A" 00CMET NO. DH-74-6-$y1 TtNNtSSLL,_ NEp0dilNG PERIOD 197e_

LOCATION Cf FACILITY na*ILTUN _ _ _ __ __.

LCstM Llpli *LL CONT 40L NUwSE4 0F TYPE AND N0%ROUTIAE 10Tal NUMotR LF LOCATIONS INDICATUM LOCA[Imo LOC AJ,10, =IIn MI6eEST ANNeat wfAN atAN Fab ._ 4E90HTE7 OF ANALYSIS OtTECTION a wtAN (f I samt MEAN (F ab

. _ Elf EQtL*LL! ( t f.0 ) - ANGd QJjjAbg, ANO olktcilus HANGm RANGF D

$ $WE M I$_

3.458 19/ 19)

TwlTIUM NOT ESIAH J.dl( *l/ *[) LM2 NunfetASI 3.hti 21/ 21) 60 0.00- e.Cu 0.73 MILts N 1.00- 6.00 1.00- 9.00

a. Nominal Lower Limit of Detection (LLD) as described in Tab \e 2. g

b. Mean and range based upon detectable measurer only. Fraction of detectable o.asurements of specified locations is indicated in parentheses (F).

I

%yg x__. \

Y hi v,..

19 Terrestrial Monitoring Milk Milk is collected from two farms within a 10-mile radius of the plant (see figure 3), and from one control farm. Raw milk is analyzed monthly for 131 1, gamma-emitting isotopes, and for radiostrontium. The results are shown in Table 9. Two samples were unavailable during this reporting period. The operator of the farm located approximately 4.5 miles NNE of the plant went out of the dairy business in May 1978. A dairy farm located approximately 3.5 miles NNE was added to the monitoring program in July 1978.

Vegetation Vegetation samples were collected near each monitoring station in the network and from each dairy fnrm to determine possible plant uptake of radioactive materials from the soil or from foliar deposition.

Table 10 gives the results obtained from the laboratory analyses.

Soil Soil samples were collected near each monitoring station in order that any relationship between the amount of radioactive material found in vegetation and that in soil might be established. The results are given in Table 11.

Ground Water Well water was obtained monthly from the dairy farms from which milk was sampled and from four onsite wells. In addition, samples were taken quarterly from four other farms located within 5 miles of the plant. Four scheduled samples were not collected during this period.

All samples were analyzed for gross beta and for gamma-emitting radio-nuclides. A quarterly composite was analyzed for tritium. The results are shown in Table 12 and indicate the maximum beta concentration with reference to Table 3, is 0.44 percent MPC.

Public Water Potable water supplies taken from the Tennessee River in the vicinity of Sequoyah Nuclear Plant are sampled and analyzed for gross beta, gamma-emitting radionuclides, '0 Sr, and tritium. The first potable water supply downstream from the plant is equipped with an automatic sampler with composite samples analyzed monthly. Two addi-tional water supplies are sampled monthly and three other potable water 974 254

20 supplies are sampled quarterly. During this period, three additional drinking water samples were collected, while one sample was lost, and one was lost in the laboratory before strontium and tritium analyses were performed. The results, shown in Table 13, indicate that the maximum beta concentration is 0.29 percent MPC.

Environmental Gamma Radiation Levels Thermoluminescent dosimeters (TLD's) are placed at eight stations around the plant near the site boundary (see Figures 3 and 4) and at the perimeter and remote monitors to determine the gamma exposure rates at these locations. The TLD's are changed every three months. The quarterly gamma radiation levels determined from these TLD's are given in Table 14. It should be noted that, even though the plant has not achieved criticality, the average radiation levels onsite are generally 3-5 mR/ quarter higher than the levels offsite. This may be attributable to natural variations in environmental radiation levels, earth moving activities onsite, the mass of concrete employed in the construction of the plant, or other influences.

Poultry and Food Crops Food crops and poultry raised in the vicinity of Sequoyah Nuclear Plant are sampled annually as they become available during the growing season. During this sampling period, samples of corn, green beans, lettuce, potatoes, and tomatoes were collected89and ana1{ zed for gross beta, specific gamma-emitting radionuclides, Sr, and ' Sr.

The results are given in Tables 15 and 16. No semple of lettuce or poultry was taken from a control location.

v'v

TadLt 9 (

HA010ACTIvliv IN MILK l

PC1/L - 0.uj7 6J/L NAME OF FACILITv_'erJuvvam 00CMET No. HH-79-4-Sul TENNtsstt 4tP09 TING PERIOD 1978 I LOCATION OF FACILITV cAMILfoN -

TYPE AND Lontd LIMIT aLL CONTROL NuuRER OF lhblCATVn LOCATibh3 LuCATION mITm MIoMt sT ANNUAt > FAN LOCATIONS NONRouTINE (

TulaL NUMBEH CF OF ANALYSIS DETLCTIONa atAN (F)b NAME ptAN (F)b MEAN (F # REP 0 DIE 0

_ _EEDEQ4 MQ (LLM) ndutb u1STe CL *No ol"ECTION WA%Eb RANGfb EEj$MffffEblS__

GAwMA (NAll

(

34 (5-137 10.000 10.924 5/ 233 NOHMAN FARM 12.32( 1/ 56 11.56( 3/ Ill 12.52 4.5 MILES NNL 12.52- 12.52 10.39- 12.27 (

10.19-m-40 150.000 1251.49( 23/ <31 LovELL FAWM 1277.44( 12/ 12) 1343.29( 11/ Ill 1169.03- 1400.3* 2.75 MILES NNt 11d2.92- 1400.34 1242.03- 1441.54 I IODINE IN MILK 0.500 2.66( 2/ 23) NONMAN FAwM 2.65( 1/ SI 1.00( 1/ Ill 34 2.*6- 2.nb 6.5 MILES NNE 2.85- 2.85 1.00- 1.00 3m 89 10.000 43 vALuts <LLu 11 VALUES <LLD 34 ANALYSIS FEHFCHMt0 SR 90 2.000 5.94( 23/ 23) LOVELL FARM 6.94( 12/ 12) 4.57( 10/ 11) 34 2.58- U.95 2.75 =lltS NNL 4.91 6.95 3.49- 5.67

(

a. Nominal Lower Limit r.f Detection (LLD) as described in Table 2.

b. Mean and range based upon detectable measurements only. Fraction of detectable measurements of specified locations is indicated in parentheses (F). (

(

S3 l

~~a l

rs) (

L J7 St C7%

(

(

i T=ntt 10 .

-AuluaCT!vliv is VtGETATION Z FCl/o - L.t37 a u / 's (OnY ettuMT)

. Art U6 r=Litll'_;p VoYA" 00CMET No. WM-7v-*-521 '

LOCATION UF FAtitlJy rawjLigN IgNNts3tf wtp0dTIN6 DERIO0 197o -

CONT 40L NUuBEd 0F TfPL AND LG=Ea Li*li =LL NONWOUTINE t fvTAL Nb"Sta UF InblCaioa L VL A l l uv > LuggIlus .Iin mig F si ANNUAL

• FAN LOCATIONS

. ras grgb wrpaqiga OF ANAltsid OtitCTILN a ,t,y gy , b .awt wtAN (F)b MANG@ b ggggggggggy3,,

- dEEEMEtik __lLLdl ___ ~2N9t b u12Tasc t ..o yl-tcTION PANGF 11/ 11) f

.u-( *a/ se) AunwaN vawe do.20( t/ 2) *3.lat ouvEs META u.doh

• 76.59 5, 11.oT- low.le ..$ allts NNt 53.20- 59.!* 16.J0-u.010 o.11t *7/ -7) vmL ONr F4a= 0.5e( 2/ d) 0.06( 11/ 11)

TOTAL AlenA 1.09 0.01- 0.30 Se i.91- 1.09 M.3 HlLEd NNt U.06- ,

8:Ab>A (NAll 9 '

a.wvt T/ F) avainav005. TN 4.65( 1/ 1) 1.90( 2/ 2)

CE-141 l*4 0.350 7.71- *.o5 lu.5 MILES ab. 4.65- 4.o5 1.73- 2.07 I vaLUt 5 <LLu 0.19( 1/ 2)

Co-e0 0.170 0.19- 0.19 5/ 7) 'uaTemudos. TN 2.17( 1/ 1) 0.64( 2/ 21 wu-103 106 v.65e 1.Jvi 2.17 0.73- 0.95 0.ao- d.17 10.3 alltS a5a 2.17- '

7 VALVE 5 <LLO 0.22( 1/ 2)

C5-136 0.200 O.22- 0.22 3/ 7) tou'Tv da-4. TN 4.55( 1/ 13 0.2R( 1/ 2)

CS-137 u.200 u. le t 0.28- 0.48 0.26- 0.53 J.75 MILtS da 0.55- 0.55 0.*ut 3/ F) r uM TMau003 Im 0.50( 1/ 1) 0.23( 1/ 2)

Z--95.N8-95 0.200 0.2d- 0.50 10 5 MiltS =Sa 0.50- 0.50 0.23- 0.23 t

1.17( Tl ball C EEA. TN 1.17( 1/ 1) 2 VALUES <LLD Cd-51 1.100 1/

1.11- 1.11 10.5 allt5 N  !.17- 1.17 la.3*( 7/ 13 newslsuN nAY. TN 21.96( 1/ 11 22.20( 2/ 2) '

m-40 2.500 11.03- 21.9* 3.3

• ILLS SE 21.9*- el.94 20.55- 23.e6

7) SALE CHEtA. TN 0.3H( 1/ 1) 2 VALUES <LLD l-131 C.350 0.3H( 1/

0.3e s u.3e- u.Je 10.5 NILES N 0.36-1/ 73 CuvNTY Pawn, TN H.v!( 1/ 1) 4.00( 2/ 2) 6t-7 hut LSTA8 .. dot 5.06 1.59- e.v1 J.77 *1Lts 3 d.91- 8.91 2.93-0A>wa (GtLI) 52 9)

CE-141 u.doo u.40( 10/ *J) howinavoos. TN 0.554 1/ 4) 0.57( 2/

0.cd- 0.55 10.5 MILtS aba 0.55- 0.55 0.52- 0.02

(

3.ett 37/ *3) Nuwm&m FAww 7.05( 1/ 1) 3,22( 8/ 9) .

CE-144 U.220 9.75 0.2T- 12.15 a.5 MILLS NNt 7.65- 7.65 0.27-A0T tbTAs 11.37( 6/ 6J) NowT"=uous. TN 15.32( 1/ *) 12.34( 1/ 9)

PN-144 15.32 12.34- 12.34 i

'C 7.Fo- lo.3c lu.5 MILtd asa 15.32-2.96( 1/ 4) 0.28( 1/ 9)

's.J*U-]D3 0.200 0.*7( 7/ 43) tal soviHaEST u.21- 2.4a v.15 d!Lt3 S. 2.98- 2.9H 0.2H- 0.28 ans *J) MANWl5bN. TN 3.63( 1/ 31 1.63( 4/ 9) l wo-106 0.510 2.1J( lJ/

J.63 n.75 MILES 5Sa 3.e3- 3.h3 0.56- 2.90 0.35-0.060 0.50( Jo/ +3) NuMTn=0005 TN 1.d9( */ *) 0.*0( 6/ 9)

C5-137 3.96 0.09- 1.06 i I\U 9.07- 3.ve 10 5 m!Le s =Sa 0.10-a3) ua137. TN 1 97( 1/ 4) 1.90( 2/ 9)

LT: Is-95 0.110 1.53( Ic/

FILt$ a 1.97- 1.97 1.08- 2.12 st 1.13- 1.97 9.3 (

• J) NodwAN FadF 4.27( 1/ 13 3.19( 3/ 9)

Ne-95 0.050 d.*ot 16/

0.15- *.55 *.5 m!LES NNt *.27- 4.27 0.35- 5.01 LowtLL Fadd 4/ *) 13.90( */ 9) n-40 NOT EST AH 13.32( *3/ +3) lH.*e(

4- M 6 40- 31.48 (

inati 10 (CONTD) rAwfuacTidliv 1. , vtutTATiuN

-C1/a - u.s 3 7 nw/4 (uwY atibHI)

Naut Of FAllLliv ;tuvo'a" 00CnET No. dN-79-4-Syl LOCATIuh OF FallLlif *.wlLICA It4%tS5tt MtpodTING PERIOD 197o '

TYPt AND Lonta LIPIT ALL CONTHOL Num8Ed CF total huweta Le INultaiva LUCATiuN'

• FAN LOCATIONS NON900 TINE f 0F A N A'_ Y S I S DE f tC T !uN * . tan (& ab Lkka1123_m11c.b12tth1_AhN',At

,, . t t4% gy 3 b =EAN (F)b pgpodTE0

__gESF0H=LL ttLdl _ sahSLb L12132Ls nio bi-tcTIO,9 WANbE D b DAhGE EEASMSE"EbI5__

>N-54 u.udo d.13( c/ 33 nowinsuuo3. T ew 0.15( 1/ 43 0.12( I/ 9) '

O.It- o.15 lu.3 wilts .Se 0.15- 0.16 0.12- 0 12 ni-214 0 100 G.2et dJ/ *J) LowtLL Fv J.Jd( 2/ 4) 0.298 5/ 9) 0.1o- 0.71 <.13 %ILts NNE 0.29- 0.46 0.15- 0.34 el-212 NOT tdTAH 4.13( </ *Ja CuvNTY vaw<. TN o.164 1/ *) 9 VALUES <LLD u.le- u.16 J.73 allts S. 0.16- 0.16 Pe-214 AUt tsTA8 9.23( cl/ 63) .sunie ucos. TN J.3Mt 1/ *) 0.23( 4/ 93 0.01- 0.Sc lu.3 m!Lts ess 0.3n- 0.3n 0.18- 0.2R vo-21< NOT tdiae u.13t 21/ +33 nanwlsoN. TN 0.49( 1/ 33 0.10( 3/ 9) 0.01- 0.*v n.I5 mlLts SS. 0.49- 0.49 0.04- 0.16 wA-223 NOT LSTaH 43 vetuts <LLu 0.544 1/ 93 0.54- 0.54 et-7 Nul trIAe s!.934 +3/ Nuw=Am FAda 21.wot 9/ '

3: 1/ Il 11.01( 9)

! *t- 31.Ja *.o ultes NNt 21.90- 21.90 2.21- 33.59 TL-20e NOT tSTAn e.swt 5/ 4J6 .uns. T is 0.114 1/ 33 0.09( 1/ 9) 0.00- 0.11 *.5 witts NNt '

4.!!- 0.11 0.09- 0.09 AC-226 NGT ESTAe u.33( 4/ 438 (Mt buuT"st5f 0.*2( 1/ 41 0.374 1/ 9) 0.1u- u.*c U.73 MILts 5 0.*2- 0.=2 0.37- 0.J7 SW 89 0.250 u.30(  !</ +7) btOw6ET0 N. TN 0.F94 2/ *) 0.718 1/ III 38 3.<b- 1.01 v.O MILts Eht 0.56- 1.00 0.71- 0.71 SR 90 0.u50 0.6tt *5/

• F) LouNIT vawn. TN 1.20( 4/ 49 0.52( 11/ 11) 50 0 15- 1.54 3.75 milos s. 0.58- 1.d4 0.18- 1.36

a. Nominal Lower Limit of Detection (LLD) as described in Table 2.

b. Mean and range based upon detectable measurements only. Fraction of detectable measurem 2ts of specified locations is indicated in parentheses (F).

i

-J ar, t e

Ln C%D (

t-f 24

. M.

5 e

8 e

i i w ta. 2C2 Q 6a

)

i O == W k.8 W

> > Ej 48 8

T 3 & hg w C C 'El b Z G S Of g I 2 w Vi we 3 C 'I 40 21 k4 $u 30 4

U

- = '=*

m. m. ,. me .m. m. m.

4 4 4 4 4 4 4 4 4 N

4 4 N

4 mQ Q

]

• = @O O mC 4 N @ O O ** O -

t D P 'P O 9 4J m *J .J 70 m -* _J .J PJ e e e e e ,,) e oJ J e e e WW e eJ J eJ v **

. ? %O NOv v %Ov  %@ %ONO NO %=eNO 4 NO m V N O % =* v 4 4 g 4 " * @O 4 4 N 4 4 4 4 4 4

@ @ @ g

? O JY=

OOwm w w w w w w

• O 3 3 2 2 2 C

N. == >- N

't **

• w C -. - .J 3

J - . J =- .- . == .==.-.-.- J -

W@Oe4

. . J J 4

8 I 3 24 7 2 ? P. N&4 4 N N es N N * > @ -e m N @ e - N e *4 NmE4 D D 304 W## *OD D cm> mm>@@mW4N4N@44D 8 7 4 o e e e e e e e o e e e e e o e e o e a w S UCwG e o e e OOOO4 4 e J3 >0 OO4 4 OO4 @NOOOOOODOOC004 'O Od N .-*

2r m p s.- U 4E EO - - .- - - - - - [,

us - _ _

N N N N N N N N 34 Qg 4-N D.

N O

M p.

N e

N

+

N t

N c Ne 7 3

.4 P. N e M # M 4 N 4

O N

C 4

O w

O Z A4 -* 4 "I N C O N @ S @

e e e e e e e e e e e e e o 4 -W e e e e 8

- 4 'D %= N m %.* m

> 1 22 NO N O -e

-e N O .N .e ONN == .-e % NC-e  % N@ NN m N N ewNN MN N m =-e Nm == % N == %N O Na ** N g %O w

I 44 D - .a T g eiis 4 3

- . - . - . - .-.-.-. .-i.... . ...- -. .-. y o  :

J n 2 e' & D 4 *~ k t4 D =4 4 4D47NDM 4OmD.T>=44em> TNN2DD4m a g

2 07 4 4 i m N N O P O O '? @ O @ N C m e= N O O e m m @ OP=m m o O OCO e

==

3 > 4 e e oeeeeoeeeeeoeeeeeeoeeeeoeeeeeeeeee 3 a T I OE O O 3 O C' O == 0 0 3W-e@-eN O ** O N O N ** N O =* *e O O 3 O N e=e M M O O g 3 *- 3 De a

-  ? *e 2.e > a

1. 4 T. s) w

> D W ll 4J

• 1 l m W 3

d n - ra 2 e2 . e. of=2o w o o .o o a2= w a ra o

- L e @ >= Z Z 2 2 2 2 2 >= A 2 2 P- A e 3 r W r.i *: >- 2 m @ 6- 4 >- @

Z e a 'O w == w Il d M W W W Z s w 2 2 2 2 2 2 B 2 e

a e == 2 ki ) 1 *

• e e

.n@f2@

e e

@ D 'A A A fAf D D p@@ y t'

4 u

1 m

3 7

aJ

.-4 4 t f - 3J2f E

• d A f f f t1 @

'3 u343w wSwaM w a M d a 4 ** 4 t

4 dEM34 0

>- 2 3

e #

2 w w -=

3 0 .J ";33J C .Je >Z- .J C 3 J. >C J. Z .J = >2- .J >E - =.J = 2 J =2- .J=m 2 .J.e 33 .J.e e- Je>F. 4J w -e JC 3 J ***

O eE 1 I

• I e1 4

3 0

s 2p

.J Wf r

a 1 e1 5 7 r t e T a1w1 1 3 .T .I.1 2

.Y .Y g t

e- Pt E

A r

aa g g 6-4 41 1 *- P*#>0m > A 't C

• 2 t C 1 e 4 **. 3 3 I e E *2

• Y OI e33 EDT42e1 OI OIDI e E DY A *

• A 'T N be A ime a 37 33333 eO34 o ") e3 e3 eO e3 e 3 e333 e3 e4 *33 nl d e so P  ? ** e; == J -e e t 2~Q> at ee9 0 E t a t C 3 2 ** a t A 43D: =* y .

b e4 L . . g e . . . .

'O O 3 0 3 3 3 3 0 3 O 3 2

0 M%

3 N &, M N,

'3 3 N 9 +% 0 N 3 0

,t

.,V C N == M P N E' N P. N0 ** N *e, N 8'= MCN& VDN@

ee ~ e e oe a jg

- - u e u e D e m ee o e e e ,s c.

e e e o e e e e g

>- A e e

%MNmNO U g 4 a  %*  % O % C5 % O % -e N O % "* N 9 % -e N 9 % M % m% -e % O% =4 O N #

VAS OO * =  %  % = 3*3 3 g3 O O N

• 3 9 g L J = aJ N  % N N N N M N N N 9.,

e. , Ja e

> D

) --

.2 4 E 4 I L .E

- . - . - . == .f 4=3 3.%== . - . =.-.-.-.-.-.-.-.-.-.-. o eo.

4 W

3 J 3M1 ** f 4@NN

• d ? *1 N m 4 == # 9 4 A N == m ** >= == 4 J O N as 4 m *"" E 3 - > 7 mN 4 4 '1m N N 4 =* O O M O J $ N 4 O P n= @ 7 A @ 9 C 4 4 N e.e P= <*) @ 3 ==

41 8 o e eeeoeeeoeeeeeeoeeeeoeoeoeoeeoeeoee g

1. $4 V ** O T 3O 33C 3 .3 O P. N O O O O em O -e 3 "" 3 0 3 3 3 2 3 ** O N == O J w .D

.4 l{ == "I N 88 m ** CU S wg O U "e > -iis MM J *

e e m.e G "O e- 4 .

U U4 .g .e e L 1 ".J $ ) e O O m O e O z 2 &

. - - = e r O O O O O 2 3 o 4 -e ne - @ o O o e o e N o 4 4 - :t u h. .Jw - -

JU7* 3 e- -w e e- 3 6- .o

-e o e- > 0 J

w x wa . n . O. O. N. a. . O. @ B . e o. o a ,2 is .2 a .J O O w 3 O O O O O O w O w O O o w w -

ga 1 e sh - .O 1 2 J Q e- e. >- >- e- o-3 O O =3 23 J 3 3 2 2 L 2

~

2 .b u,&,

0 4

> g 4 1 O le U 4A N -. N m3 O 3 D ** C4 ==

g3

.J L 5 .n A 4 J 4 37- 1 >-

Z J J{p W W

O k K hgi w eqt - 4 9 o N 4 N 4 N C m e 2 4 m g=

e O M @

• eo == ce N N O N m N CL .J Z kJ F4 4G @ 4 - * =

O O gj

-- w @ x a. . . .  ?. 4 N. N.v N. N. N. N. N. N. N. N. N.

O 'a. CL o 1 w J J @ D == e* - 3 2 4 4 w J v 4 4 U .1 2 'X 'Z. >= 4 Q.

>* O J O

4 U II I Z nt I L i 4, CL 44 W

I - O J l

. ' ' < ( ' ( ' ' ' t . 1 l ( I i

v

)

F

(

, s

, e s

3 e

_ t 3 h

_ F s93 t

_ 0iEg n fT e e woQg r.

EoOg p AwPg

= ~F$ n UOAg i NN g d p e t

a c

) ) i

) 9 0 d 7 5 2 n l 27 23O O 4D D 10 i u N 7 L L L L 0 S 7 . J. L L 3. L t i s

- 9 /h / 0( < / 3< < / 1 4 1 sb 4 11 11 1 1 s

- LN) 2 S 5 S S 4 n v )t OoFb E E E E o U U i 7 o Hl( E U U

( - t

- i Tf G ( - t - L L ( - L L a w R NANN 47 33A A 44A A 00 c w t OCaA34 V V 00 o CcEQ 3 3. W 3 3.V l

.P L* 42 005 2 332 2 11 1 1 d OG 1 12 11 e

NN 4 4 i I f TT i Ed c n0 e p

CP 3 3 3 1 ) 3 3 s

OE b 2 2 1 1 1 1 4 OW l 1 5 11 9 6 1 o 0 f

~ { 0 5 4 5 2 0 c A ( E T. s

- G /3 /4 / 2/5/9/6/6 t

- ND21 12 1 e1 11 1 1 6 n AA1

• c.

t tw r w s M e

a t e ( - t

- ( - ( - ( - ( - ( - d T s 1 J 11 M6e611 8e00 s A 3 33

• 455227700 a

= 3 J. o. e t s 1 s 4

• 2235v4 o666 m L / i o 2c 6011 6e e L w s I 4

• l t o e T b a c C a t

T t 2 t c 2 m J t 1 4 e 1 i 0 d m 1 t s Mm e t f J t , E u_ l 2 s

4 e

e . = wN A

d L i N 2 2a s s SFs f n l - N r o a v t 1. A 3 t . L , L% - Ewt aE t l 1 L t N A_ L N Ls LfwLwlwLnl n

/ ~ LL t aI AiAI5l o 1

C 1 o [. t at t. tF MF w. F M1 e 2t

.i A C 2 y T T i M c 0 s 1 e I 1 l s5S3sSA ea 1 3 lNS m5 Ndi1 Y7 yF C0 l r 0 c sdN uN unA . A .A .L bF A k l5O sU S uU m ub 0* 2 a u g T c .

ny i l

- _) ) ) s ) ) ) n s v  ? 2 2 2 2 5 do u e3 u e1 n 6 l o3 0 e b s i 0 L 5

• 5 7 0 it rb L . d. rn

< / * / / / 5/9/c/6 ce a>b c> _/3 d1 5

1 / 1 n1 1 1 1 7 0 4

sm ee n u( L* d r a N LL G t u v o L NN u ss e i aA A t - t t - ( - ( -( - t - ( - aa u t ut

• p1 A 11 d ee61 1 N o7 0 e 6 64 v 4

• 5 5 2 2 7. T 50 ) m hl  %. 5 D iu T. Le c t4 7 6

• eA 35 wwec7P Ll J_ na i e 2< te1 1 93 (b a

v u 3J nt i ~ oc l y i i e uT t t lI ce

• ed CL T t

AI I N en iC M u Do p A I i 0

• 0 0 B 6 8 N 0 FF LF T 10 0 u A A A A 0 f u L cCD* 0 0 T T T T 0 o 5 S S S d F M LL. 0 t e EO t T L2 0 3 L E E E is M a 1 1 3 ma AN C E D J_ T T f T 3 ib O O u O L NO L _ e I N N A N rg T en A m 6 2 4 5 wa C e5 9 v 1 4 or L

O Ue1 Q l 1 d

L NM5EA l L l n ALY MT A E aa NLP E N G n E AO B ( 4 ( 4 4 2 M in PtNF 3 1 1 1 1 U ma oe Y aAEs A 1 3 A 0 2 7 2 I NM TT Es M - 1 M 4 - - - T OF M 5 - M - l 6 e I T O E_Ho A C 1 A 6 e P P H ab

_6 6 G T

!x,: )

. NCChZ

i , t ' I I ' I .. i ' t t (

5

)

F

(

_ s e

s

) e

_ E 1 h

_ FN03 t O!EL n f T f e Ru48 r a

_ Eo0d p

_ 8 epm q NEj n uOR j i NN F d M e t

a c

) i

)

d 6 6 n 1 1 4 D O D D 10 i 9d 5 L L L L 0 1l L L L L s i

- 3 / 5 < ( < C / 5 6 S 2 87 s

- 1_ Lrg) 1 5 S S S 6 n 9 O OuFh E E E E o U U U i 7 C RI ( F U t

- I TT G ( - L L L L t - a H 4 NANN 99 A A A A 30 c 4 t OCA 344 V W W V 60 o P COE4 l

. Lm 32 5 1 6 6 90 d

oG 1 1 1 55 e NN 43 i I f iT i tk c a0 e p

CP ) ) )

s 0E 3 3 2 0W b) 1 0

• 1 0 f N Fb 8 7 0 o f A ( E s L F G /d / 7 / 2 t v

• NN 1 1 1 92 n d AA 1 H e u L LW m 3 A M e U - - ( -

r

( 8 u

4 N 45 4 * *0 s 6 N 95 7 I *0 a T L A . . . e 4 / 342 7I 3f m e 4 T 2 1 I 63 e d s l 63 l c F l b 3

1 i

u s

t n

F 4

U v.

t t

5

}

i t i g L n

f l

d 5 t

a c

e t

e 4 4

T t

L, i

Y s

/

l L

T L

N t

T n

I.

tg t

r 2!

a3w U_ L N 3_1 LUJ S 9 4t T t S

i e t I

T 5 u.

u3 d

f o

n o 9s l

i i

L v

l e l l

k a

LO7 bN4 lI l

ir M m

S I

T A

.d 3

I u7 N6 F w 2t

.i ea l r bF a

c 4

= g- ltI uw CT T v L k .

a ny v il o  ; ) ) ) n n N *

• b 0 b3 d o v J o J

• D tbt ot3o e b s I 7 LvLaL* i t Tb o. . LMLwL n u. rn A ) /d /7 <U<O( u/2 ce CF s 1 1 F F F 9/ sm ee n U(d' c 5 n5W bh1 e d r a h LL s EtF E tE u Y

s L Nh

- ( -

LPUPUP

(

ss aa J amA A (

L L L -

e

u. L oL " 1 3 *

• A5A 5A 57 0 ) m iJ T w 45 77 V1VI Y 130 D g* A . 5 5 S . Le

A C 3 c 77 uV 3Y 3Y 77 Ll

_* l 1 1 LJt3L*3 ( b e u A a A *3 a r N N N :4 nt oc iY I A A 4 i e tI t t l I ce tL i a _

ed t

AI l A en F C r v Do p A I i o 0 0 0 0 F F LFT 8 o 0 0 0 0 f u C CCD* 0 0 0 0 o r d

" tk. t e tC t il i 5 0 c 0 i s w a EI 1 1 J ma ib a A u U J L

sv L e l rg T en A n u S 1 9 9 9 wa or C Es S * ) 4 4 4 L

O dei D ) I d

L NMSLA I L l n AUY tT A E aa NL3E N n E ASb ( G( M in PLNE 1 U ma oe Y AA S5 A 3 A 9 0 I NM 1 T L5 M 1 M 4 4 T 0 M - M 1 TOOF f.4 i A I A w m w ab

,=

_6 s 6 S 5 T

~ ;> h a_

NC_

e

27 Table 14 ENVIRONMENTAL GAMMA RADIATION LEVELS Environmental Gamma Radiation Levels Quarter Location UR/ Hour mR/ Quarter November 1977 - On-Site (7)*

January 1978 Maximum 11.1 24.4 Minimum 3.7 8.1 Average ** 8.1 5.5 17.7 12.8 Off-Site (10)

Maximum 9.7 21.3 Minimum 5.3 11.7 Average 7.9 2.4 17.3 5.2 February-April 1978 On-Site (7)

Maximum 9.1 20.0 Minimum 6.9 15.2 Average 8.6 1.9 18.9 4.2 Off-Site (10)

Maximum 7.3 15.9 Minimum 4.0 8.8 Average 6.0 2.3 13.1 5.0 May-July 1978 On-Site (8)

Maximum 11.0 24.0 Minimum 8.3 18.1 Average 9.7 1.7 21.2 3.8 Off-Site (10)

Maximum 9.2 20.1 Minimum 6.3 13.9 Average 7.4 1.8 16.2 4.0 August-October 1978 On-Site (8)

Maximum 10.7 23.5 Minimum 7.9 17.3 Average 9.5 2.5 20.9 5.4 Off-Site (10)

Maximum 9.5 20.7 Minimum 6.3 13.9 Average 7.9 2.2 17.3 4.8

• Nu.7ber of stations (normally three TLD's at each station)

• • All averages reported !20 "74 262

' f i

ycn 3

_ E ]

FA D3 OIEg TT g dURg tOGB 8RPy wNE3 OOR j NN g g

) 1 )

) )

1 1 1 1 1 1 D 0D D 9 0O D 6 L L 5 L 3 1

3 L L 0. L L 0. LL L 96 / 3 " /7 < < /1 /9< < / 3 57 11 1 8 1 6 1 3 1

• 1S S

- 9 H 5 4 5 S 6 6 1 S b 2 E 1E E 2 1E E

- tNl U U U U U 9 D oOFb t - L t - L L ( - t - L L 8 -

T O wI ( F 11 A 00A A 99 00A A 66

- I TT G 33 W V 55 V 55 H R NANN 0 0. V 0 0. V W E OCAf 7T1 11 991 1 33 33 I 1 33 COfu 88 66

.P Lw 4 4 88 11 4 4 H6 11 oG 22 11 22 11 NN I

TT E w ) l ) ) )

3 ) )

K0 1 I 1 1 1 1 1 1 Cv 9 4 0 7 3 0 5

• Ot b 9 1 0 6 6 0 3 l Ow l .

N { /2 /6/9 /1 /3 /2/2 / 3

) A ( E 1 4 1 1 6 1 1 1 1 1312 1 7 T F 6 3 1 9 H H = NN 6 3 5 2 G A A I E M - - - 8 - ( - 8

- 1 - ( -

t la m 8 t t 7 7 S 33 0055 + 4 99 * = 00 N a u 99 l 1 00 69 68 1 1 S

N . .

4 t

0 u. 3 3. . .

P i N 22 6o99 1 1 33 4222 3 3 t A d 3322 71 O

• 66 1 1 1 1 R a N N 33 11 99 6d C t T O N 55 22 R 06 33 L S I O

D E T E O r C C R O b O F K t e E N

/ t I d 5 N u 3 H r I N 1 I I n 3 O Y t Y t H t T uu Y a L T 7 N T I . a a = T . . .

n I 3 N I A N V a V 0 t = mA d S S l

d 5 S s I I d v T T i T t L L L i t t E t C u 3 t C L l L L T L L L L A 2 g I I I O N A I l I I C

I I

- 1 A OM a M M A N M M M D 1 I 0 A

g T D 1 1 1 1 1

1 1 1 1 R o g 5 n M l A 0 R A

/ L o H 1 ) ) ) n )

) 1 1 C 1 1 1 o1 1 1 I u1 W d v . 0 ut / 3 0 5Ut  %

n 6 0 1 o.

l b v. . 0. Lw La 3. L LMM .

i

/2 / o/v<0/1 / J / 2/2( U/3 Tb 1 1 1 6 F1 1 1 1 1 31 2 F 11 A3 J 1 $w 9 n SH C ,' 6 3tt 5 2 E t

" O i,'t ue UP A A LL i- - t

- 1

- L ( - t - t t - L t -

Y U L NN 99 * . 00 A577 33 0 055AS4 4 G I A aA A 66 66 11 V L u t, T

d 99 l l

. . 0 0. V I S 0 0 3 3. VSI . .

2I 2d t ew51 Y 1 ! 33 22221 Y 33 1* A eo 1 l 332c L7 1

= e t1 !

C J J 1 1 a vv ee A 2_MA I o6 33

• 35 22 N F U A A T N I Y I LI JI LL l a AI i N 0 0 o 0 0 0 H H 0 0 F C m u 0 0 A 0 0 0 A A 0 0 A i l 0 0 T 0 0 0 i T 0 0 F F LFi )

S b S U OCM 5 5 L 0 8 5 t L 0 8 f w tL 2 4 2 4 hO t T L T i T M e E( O v O aN u D N A h NO L I

2 2 2 2 2 2 2 2 T ) )

A 4 I l C t5 A L A l O bnI Q T t T E L A uSf L 6 E G AUY M U ( 7 B (

• NLR 3 1 E AO C A 1 0 9 0 S A 0 2 s c PLNF S M - 4 6 9 S M * - a 9 Y A AB O M 5 - O M -  !

TT f R A C K H k R A K o R w OF U TO f.. G G S d G 3 5 s 1 U NT C (;

5 I I ' ( g ' t  ;

f #

r*

o

)

F

(

, s e

_ s 3 e

_ E I h

_ FNDy t

_ UIEg n TT g e

EUAg r

a EOog p RRPg wNEg n i

UORg NN g d g e t

a c

1 l 3 ) i 1 I 1 d 0D O D 1

n 1 D 0 3 0D D i gg L 1 L L L 1 L S7 L . 0. L L L 0. LL L s

< / 7 / 1 < ( < / 5 / 8< < i

- 3 1 8 17 1 0 19 6 Sb S S S s

S 2 6S 8 9S n

- 1_ LN)

E 8 3E E E 3 1E E o 9 D UOFb U U U U U i 7 O NI ( E U - L L L t

- I TT G L ( - ( ( - ( - L L a A 00 00A A A 33 00A A M W NA N N W V W c w E OCA A v 1 1 0 0. W 11 0 0. V o

. . l

_P COEW 0 77 1 1I 1 1 55 6M1 l

. Lw M6 7 7 00 99 d oG 22 66 68 99 e NN _

i I

66 33 33 11 f i

TT c Eh e K0 ~ a 1 l )

p CP ~

1 ) , ) ) 3 l 1 l I l

1 s

1 1 1 1 1 1 0t 5 4 6 G 5 0 6 7 6 7 7 0 f 0h .n 6 0 2 0 5 0 o hE A (A 1

1 0 0 n. s T E G / 1 / 0/3/3/d J / 9 / 6/8 / 3 / 9 t 1 v 1 11 21 1 1 6 4 1 7 1 31 1 2 1 e n H ~ r. N 2 9 7 1 e G aA 0 7 3

2 1 J 2 m I L EW e E A * - ( - ( - -

r m u E ( - ( 6 - ( -( - ( - (

0077

( - (

u C 6 4 o6005500 d6 T 7 77 00 s N <2 00 a 3 U 1 1 1 1 00 0 0 0 u. M. M. 57 T

1 T . . . . e. 6 0 0 S .

S e

m E. s T 1 1 00333355 33 E 9 9 b beH E 33 99 7 7 dd 66 e

( T t E 99 L 66 1 1 d211 86 7 T 44 U T 22 99 O 22 77 11 l S i 33 T 22 b E T 22 11 A A 33 N a u r C T w t m t u r -

I O o c e

/ t l - P T w 3 - t Y t 5 yT N N e r d t r t _ I I I 7 N T u2V Y f

o 3 N a 3I a a Y

a a t I. T a .

• 4 . . i .

T n

u. i s 2_ C d S 5 3 d S l

d 5 S I S d o 0 g t At v V .i g gO t t t t t i t t t I E t 2 t I L L L t t L T L L l L L c

- l d I I l T

ea l &D I I I i I I

M C

M M e C I M

I M l r a 1 A = m w A A b' o g 2 R 1 1 1 I 1 1 O 1 1 1 0 1 1 a n u 1  ! 1 T

/ L L 0 D ny I A A il C M ) ) 3 H n

- > ) ) a ) 1 b u l l u D d eo N 1 1 l 1 1 U1 1 1 1 I I

• e o 5 ooE 0 7 0 1 Ot vt 7 0OtOE b s v 2 0 La T

i l l

u

. e. o. LMlM 0

/b/ e<O< 0

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31 Reservoir Monitoring Samples of aquatic media are collected quarterly along four river stations in Chickamauga Reservoir--at Tennessee River miles (TRM) 496.5, 483.4, 480.8, and 472.8. In addition, water samples were collected by auto-matic samplers installed at TRM's 473.7., 483.4, and 497.0. Samples collected for radiological analyses include sediment from four stations; water, plank-ton, and Asiatic clams from three of these stations; and fish from Watts Bar, Chickamauga and Nickajack Reservoirs (see Table 17). The locations of these stations are shown on the accompanying map (figure 5) and conform to sediment and special ranges established and surveyed by the Data Services Branch, TVA.

River station 496.5, the control station, is 12.7 miles (20.4 kilometers) upstream from the Sequoyah plant outfall diffuser.

Samples of water, net plankton, sediment, and Asiatic clams were collected quarterly (plankton only during the two quarters of maximum abun-dance) and analyzed for radioactivity. Three species of fish were collected and analyzed semiannually. Gamma, gross alpha, and gross beta activity were determined in water, net plankton, sediment, shells, and flesh of clams, flesh of two commercial and one game fish species, and the whole body of one com-mercial fish species. In addition to the above, tritium concentrations were determined in river water samples. Except in the flesh of clams, white crap-pie, and channel catfish, 8'Sr and SO Sr content was determined in all samples by appropriate radiochemical techniques. The activity of 13 gamma-emitting radionuclides was determined with a multichannel gamma spectrometer.

Water Automatic sequential-type water samplers were installed at the three cross sections indicated above and shown in Table 17, with composite samples analyzed monthly. Grab water samples were also collected monthly at the point of plant discharge to the Tennessee River (TRM 483 6), and at a point on Chickamauga Creek. During this period three extra samples were collected. Results are displayed in Table 18.

Fish Radiological monitoring for fish was accomplished by analyses of composite samples of adult fish taken from each of three contiguous reservoirs--Watts Bar, Chickamauga, and Nickajack. No permanent sampling stations have been established within each reservoir; this reflects the movement of fish species within reservoirs as determined by TVA data from the Browns Ferry Nuclear Plant preoperational monitoring program.

974 266

32 Three species, white crappie, channel catfish, and smallmouth buffalo, are collected representing both commercial and game species. Insufficient quantities of smallmouth buffalo were available from Nickajack Reservoir during one sampling period for analyses of both flesh and whole body, there-fore only the whole body sample was analyzed. Sufficient fish are collected in each reservoir to yield 250 or 300 grams oven-dry weight for analytical purposes. All samples were analyzed for gamma, gross alpha, and gross beta activity. Concentrations of Sr and '0Sr were determined on the whole fish and flesh of the smallmouth buffalo. The composite samples contained approxi-mately the same quantity of flesh from each fish. For each composite a sub-sample of material was drawn for counting. Results are given in Tables 19, 20, 21, and 22.

Plankton As indicated in Table 17, net plankton was collected for radiolog-ical analyses at three stations by vertical tows with a one-half meter, 100 micro-mesh net. For analytical accuracy, at least 50 grams (wet weight) of material is required; and collection of such amounts is usually practical only during the period April to September because of seasonal variability in plank-ton abundance. Samples were analyzed for gross alpha and gross beta activity.

Samrie quantitles were not sufficient for the analysis of specific gamma-emitting radionuclides, 8'Sr and ' Sr, and six samples yielded insufficient quantities for gross alphs and gross beta analyses. Sample results are given in Table 23.

Sediment Sediment samples were collected from dredge hauls made for bottom fauna. Camma, gross alpha, and gross beta activity and 89 Sr and Sr con-tent were determined in samples collected from points in four cross sections.

Eact mple was a composite obtained by combining equal volumes of sediment frca each of three dredge hauls at a point in the cross section. Results are given in Table 24.

Asiatic Clams Samples of Asiatic clams were collected with a Ponar dredge from three stations and analyzed for gamma, gross alpha, and gross beta activity.

The 8'Sr and 'OSr content was determined in the shells. Results are given in Tables 25 and 26.

74 267

Table 17 SAMPLING SCILEDULE - RESERVOIR MONITORING Biological Samples Zooplankton, Tannessee River Chlorophyll, Benthic (Mile) Phytoplankton* Fauna

• Sediment

• Fish ** Water Samples 472.8 **** 2 473.2 Automatic sampler ***

480.8 2 1 2 483.4 2 1 2 Automatic sampler ***

483.6 Grab sample 496.5 2 1 2 497.0 Automatic sampler ***

• Replicate samples.

• • Fish samples are taken from Watts Bar, Chickamauga, and Jickajack Reservoirs.

• • • Composite sample analyzed monthly.

• • • • Samples takea during one sampling peric;d only.

3

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Figure 5 3'

R ES ER VOIR MONITORING NETWORK .--

SEQUOYAH NUCLE AR PL ANT -

DAYTON .

E g i i,

MILE 497 MILE 496.5 SODDY SEQUOYAH I NUCLEAR PLAN 7 MILE 48 3.4 MILE 480B CHICKAMAUGA DAM MILE 4 73.2 ...

q MILE 47 2.8 l

CHATTANOOGA 8.0 kilometers O 5 MILES n D ] [7

[g' O

TasLt 18

. A .'I o.L i t v l T Y IN SuntACt mAftd (TOTAL) etift - 0.037 Nw/L '

NaME OF F AC I t t i r_jt',ut v a" uuCMET NO. 4H-79-4-5SI LOCATION LF FACIL11y - a wf gj o*

$NL35tL_ wEv0WTINE PER100.137s - _ ___

TYPE ANU LO =E a LIMIT mLL CONTROL NuwSEA OF TuTAL NUMeta GF INulCaTu- Localit.Na LLL311LL nIlm MISHEST ANNuot =EAN LOCATIONS (

N0NROUTINE OF ANALYSIS OE TECT IuN a ut.N tr ib *EAN (F ab MEAN (F) b

..e*L dEP0 dieu

-_idEBEDEfLO -_lLLD1 _ "ahkLb Lahl MLt_.3 g ,glgt.Ci103 -ANGEb _ _ ANGtb Q ug33Wgyg3J3,,

OwoCS ALPrA d.000 c.998 1/ JT) iwr 4/J.c d.99t 1/ 13) 2.55: 2/ 24) '

61 c.vv-ukOSS HETA 2.*00 c.45 2.99- 2.99 2.18- 2.91

• .?dt 30/ JM) T** *73.2 6.94( e/ 13) 4.30( 19/ 25) 63 c.61- 14. 3J TOIAL ALPnA 2.41- 14.33 2.48- 7.67 U.*00 0 5u( 1/ la Iww *na.h 0.50s 1/ ll 0.62t 1/ 1) 2 d.wb- d.70 Sw ul5LMA46L 0.50- 0.50 tiAwpA (NAI) 0.82- 0.52 59 J" vmLur d <LLv 24 WALUES <LLO ANALvs!s PFnf unwe v OAMMA (6LLI) I 81-214 NOT EsTAH d4.nl( t/ 3) Tm> soJ.* 23.50t 1) *0.00(

1/ 1/ 1) ed.5c- to.Su 25.50- 25.50 *0.00- 40.00 '

vo-214 Avi tsian in.5ot c/ J) Ts* +7J.c 19.35( 1/ 2) 25.32( 1/ 1) 13.To- 19.J: 19.35- 19.33 25.32- 25.32 SH 89 10 000 13 VALUES <LLD 9 VALUES <LLD 22 ANALYS15 PE4FONeto SH 90 2.000 13 VALUtb (LLO 22 9 VALUES <LLD ANHLY5IS PEhf0H*tD (

TwlTIUm 330.000 534.301 10/ 13) TH* *1J.e 583.07( 3/ 43 22 535.00( 4/ 9) 33*.00- 1*5.0u 5*l.00- 64*.00 331.00- 744.00 i

a. Nominal Lower Limit of Detection (LLD) as described in Table 2.

b. Mean and range based upon detectable measurements only. Fraction of detectable seasurements of specified locations is indicated in parentheses (F).

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HauluALilvliY IN CwANNtl CATFISn (FLESH) w wLl/o - G.037 64/u (OHf eElGHT) hA=E OF FACILliv_;LQUuYAN DOCKET NO. NH-79-4-SQl '

LOLATION of FACILITY FAMILTUt, it3SE55tt htP0HTING PERIC0_12]o __

TYPE AND LoaEN LIMIT aLL CONTHOL NU"8ER OF i

TOTAL NUM6Em UF INUICATON LUCATivns LOCATION . tin HIGMFsi "U A t wFAN LOCATIONS NONRouTlhE of ANALYSIS OEitCTICN a uEAN (F)b . GAME mEAN (Fab MEAN (F)b REPORTE0 (LLO) _wANgt b g121a3Ct aND DistCT104 HANGEb GANGE b ugg$gyggggy)__

__EEhf0HutQ 6H0SS ALPHA 0.100 0.12( 2/ *) CHICKAMAUGA wEs 0.14( 1/ 2) 2 WALUES <LLO e 0.10- 0.1 THM 411-530 0.14- 0.14 OROSS BETA 0.100 33.8dt 4/

• CHICnAMAUGA *ES 39.45( 2/ 2) 30.46( 2/ 2) e 26.e3- 41.22 THM 4f1-530 37.67- 41.22 26.23- 3*.69 GAMMA (NAll 3 '

CS-137 0 120 0.12( 1/ 2) LnlCAAMAUGA wES 0.ltt 1/ ll 0.16( 1/ 13 O.12- 0.12 THM 471-530 0.12- 0.12 0.16- 0.16 n-4n 0.900 15.*1( // 2) CHICRAMAUGA HE5 16.42( 1/ 1) 13.75( 1/ Il '

14.39- 16.*2 TkM 411-530 16.42- 16.42 13.75- 13.75 6AMMA (GELI) 3 CS-137 0.uio 0.06( 2/ 2 CnlCKA=AoGA HES 0.118 1/ 1) 0.24( 1/ 1) 9.05- 0.11 THM 471-530 0.11- 0.11 0.24- 0.24 K-4n NOT ESTAH 14.70( 2/ 2) CHICKAMAUGA HES 10.62( 1/ 1) 16.40( 1/ 1) '

12.77- 10.o2 THM +71-530 16.62- 16.62 16.40- 16.40 HI-214 0.0d0 0.14( t/ 2) CHICRAMAUGA WES 0.168 1/ 1) 0.11( 1/ 13 0.13- 0.16 THM +71-530 0.16- 0.16 0.11- 0.11 '

PB-214 NOT ESTA8 0.13( 2/ 2) CntCKAMAUGA NES 0.20( 1/ 1) 0.07( 1/ 1)

O.06- 0.20 THM 471-530 0.20- 0.20 0.07- 0.07 59 89 0.500 2 VALUES <LLD 1 VALUES <LLD 3 AhALYSIS PEHF0HMED SH 90 0.100 2 VALUES <LLD 1 VALUES <LLD 3 ANALYSIS PEHFOMMED

a. Nominal tower Limit of Detection (LLD) as demeribed in Table 2.

b. Mean and range based upon detectable measurements only. Fraction of detectable measurements of specified locations is indicated in parentbeels (F).

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LOCATION OF Falltliv replLion it,NESStt kEPORTING ptR100 1976 ___

f TYPE AND LeaEd LImli aLL CONTROL NudBER OF TOTAL NUM6tM GF lh01CAfow LOCATION 3 Ljgallus .ITn n16 HEST AhNUAL MEAN LOCATIONS NONROUTINE (

OF ANALYSI5 DET6CTIvNa utAN (F ib wAdt etAA (Fib mEAN (F)b REPORTED

_ _tEEEDBf LL' J I.kul cAhmb klbla3Ct ahD_ulMtCT1oo WANGE b _ ,3 NGFb un SygErf.315__

ONOSS ALPMA u.100 4.idt 1/ *) rlLAAJatn wth 0.let 1/ 2) 0.32( 1/ 2) e J.le- u.a* Inm *23-*71 0.lN- 0.16 0.32- 0.32 Gross BETA 0 100 37.*vt 4/ *) LnlCnamAuuA HES 41.30( 2/ 2) 38.37( 2/ 2) 6 J1.22- 43.13 TwM *T1-330 39.*6- 43.13 37.13- 39.60 6AMMA (NAI) 3

1) 1) I CS-137 U.120 u.15( 2/ ts (n!CKANAUua >ES u.17( 1/ 0.37( 1/

o.13- u.11 inM *(1-530 u.17- 0.17 0.37- 0.37 n-49 0.900 14. Int 2/ 2) AILKAgACA kd5 14.66( 1/ 1) 16.67( 1/ 13 13.*v- 14.no inM 425-*11 16.H6- 14.H6 16.67- 16.67 I 6AMwa (GELI)

J C5-137 u.020 0.1/( 2/ tl CHICn Am Act, A s t' 5 0.16( 1/ 1) 0.22( 1/ 13 9.10- u.l* THm *71-nJO 0.14- 0.14 0.22- 0.22 n-40 NOT t5 TAM 10.70( t/ 2) hlCKAJACA ntS 17 124 1/ 1) 17.954 1/ 1) le.27- 17.le IHm *2t-*71 17.12- 17.12 17.95- 17.95 8 81-214 0.020 0.096 2/ 2) Cn!CnaMAbaA HE5 .l .12 ( 1/ 1) 0.13( 1/ 1) 0.07- 0 *. I t THM *Il-730 0.12- 0.12 0.13- 0.13 PH-214 NOT ESTAB J.06( 2/ 21 CH ICN Am a uti A wth 0.09( 1/ ll 0.09( 1/ 1) (

G.06- 0.0v THW 471-3J0 0.09- 0.09 0.09- 0.09 Pb-212 NOT ESTAH 0.03( 1/ 2) CnlCnAMAUGA HES 0.03( 1/ 1) 1 VALUES <LLO u.03- 0.03 IHM 471-930 0.03- 0.03 SR 89 0.500 2 V ALUE 5 <LLO 1 VALUE5 (LLO 3 ANALYSIS PEhf GWMt u SR 90 0 100 2 VALUES <LLu 1 VALUES <LLO 3 ANALYSIS.eENF0**to

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a. Nominal Lower Limit of Detection (LLD) as described in Table 2.

b. Mean and range based upon detectable measurements only. Fraction of detectable measurements of specified locations is indicated in parentheses (F).

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NAdE CF FACILITv_3tSuovaa DOCKLT NO. dH-19-*-501 __

LOCATION OF FACILITY PaultTON YtNNL15Lt WEP0HTIN6 PEwl0D_137e ___

TYPE AND LO.EH Lim!I ALL CONTHOL NuweEd 0F TOTAL huphEk 0F I nt,1 C A T Uw LOCAT1dNb LUCATION w1Tr HfonEST ANNUAL MEAN LOCATIONS NONacuTINE '

OF ANALYS15 UETtCTicN a utas ap3 b 4Amt ut4N (F )b *EAN (F)b AEPO4TED

__EEEF04FLD __JLLD1 _gaatL b_ y133g3gg_jso orwecylo% 9 A %g gb wANGEb mrA5MofwESI5__

690%s ALPHA 0 100 3 vatut h <LLO 2 VALUES <LLO 5 ANALV515 PEh>OHMLU GROSS BETA U.100 25.75( 3/ 3) onICnAmauGA *ES Ju.23t 2/ 23 31.01( 2/ 23 5 2 .on- 33.To Twm *T1-530 2*.66- 35.78 27.83- 34.19 '

GAMMA (NAI) 2

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CS-137 0.120 0.15( 1/ 1) CnlCnaNauGA wES 0.15( 1/ 1) I v4LUE3 <LLO o.15- 0.15 fH* *T1-530 0.15- 0.15 M-40 0.v00 1:.0*( 1/ 1) LMICnamauGA wtS 15.0*( 1/ 1) 12.08( 1/ 13 13.04- 15.04 IwM 471-330 15.0*- 15.04 12.08- 12.u8 '

GAMMA (GELI) 3 ,

C5-137 0.u20 u.0v( //  ?> hlCnAJACn wts 0.u9( 1/ 13 0.25( 1/ 1)

U.09- 0.0v The *25-411 3.09- 0.09 0.25- 0.25 M-40 NOT ESTAd 13.51( 2/ 2) OnlChAmaubA HL5 1J.64( 1/ 1) 13.02( 1/ Il

13. J T- IJ.o* IHe 471-5J0 13.64- 13.6* 13.02- 13.02 I bl-214 0.020 9.0b( e/ /) NICnAJACn HES 0.06( 1/ 1) i VALUE5 <LLO 0.0s- 0.06 Tam *eb-67) 0.06- 0.06

1) 1)

P6-214 60T E5TAH 0.04( 2/ 2) CHICMAMAUGA HES 0.04( 1/ 0.10( 1/

O.03- 0.04 Twm 471-530 0.04- 0.04 0.10- 0.10 P8-212 NOT ESTAB E VALUES (LLD 0.0*( 1/ 13 4

0.04- 0.04 SR 89 0.500 3 VALUES <LLD 2 WALUES <LLD 5 ANALYSIS PEHFOd*tu SR 90 0.100 3 v4 LUES <LLu 2 WALUES <LLO 5 ANALYSIS PEwF0k*to

a. Nominal Lower Limit of Detection (LLD) as described in Table 2. (

b. Mean and range based upon detectable measurements only. Fraction of detectable measurements of sp-cified locations is indicated in parentheses (F).

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HAOILACT!v!TY IN 5*ALLMOuTM muFFALO (seOLE) i PCl/o - u.0JT ou/G (ukY aEI6Hil NAwE OF FACILITv_3tuouva" OUCRET NO. AH-79-e-Sgl

(

LOCATION OF FACILily mapILTON TtNNtsstE dtPORTING PEH100 1970 ___

TYPL AND Lueta LIMIT ALL CONTROL NUwHEA 0F LOCATIONS NON40uilNE (

TOTAL NUMeEN OF INDICaTOM LOCATION > LOCAflon wtTM MIGmesT ANNu At MFAN OF ANALYSIS OtitCT10N 8 mEaN (t )b Naut MtAN ( F )b MEAN (F b REPORTED

_ _t[EEDF.f tl,t (LLot w ANC-t b Ad@Ct A .4 0 D1wtCTiuv WANGEb _ _gggggb g331lgggg373,_

uwCSS ALPna 0.100 J.19( 4/ *3 CNICnAMAU6A wed 0.19( 1/ 2) U.13( 1/ 23 e 6.le- u.19 IwM +71-530 0.19- 0.1v 0.13- 0.13 6405S oETA 0.100 19.93( */ 4) CnlCKAMAUGA MES 22.76( 2/ 2) 19.93t 2/ 23 6 le.7t- 25.02 THM *11-330 20.46- 25.02 17.20- 22.65 6AMMA (NAll 3 '

8-40 0.900 T.60( 2/ 2) LHICnAMAo6A ntS 4.31( 1/ 15 7.37( 1/ 11 b.69- v.31 TxM *T1-330 9.31- 9.31 7.37- 7.37 GAMwa (GELI) (

3 CO-60 0 010 2 wALUES <LLu 0.044 1/ 13 0.04- 0.04

1) (

Cd-137 0.020 0.064 2/ 2) NICnAJACK WES 0.06( 1/ 0.17( 1/ Il 0.0s- 0.06 1m> 423-*T1 0.00- 0.06 0.17- 0.17 n-40 NOI ESTAB 4.03( 2/ 2) CnlCAAMAUGA dtS 9.3)( 1/ 1) 1.S31 1/ Il

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e.73- 9.31 THM +71-530 9.31- 9.31 7.53- 7.S3 BI-214 0.020 9.0e( 1/ 2) NICnAJACK red 0.ost 1/ II 0.07( 1/ 11 0.06- 0.0o THM 425-471 0.08- 0.09 0.07- 0.07 Pb-214 NOT EdTAB 0.064 1/ 23 hlCMAJACK WES 0.06( 1/ II 0.03t 1/ 1) 0.00- 0.00 inM 425-*71 0.00- 0.06 0.03- 0.03 P0-212 NOT EdTAB c.03( 1/ 23 NICMAJACK HES 0.03( 1/ 1) 0.03( 1/ li u.03- 0.03 THM 425-=71 0.03- 0.03 0.03- 0.03 SR 89 0.S00

• VALUES <LLO 2 VALUES <LLD 6 ANALYSIS PEnF 0HMED SR 90 0.100 0.19( 2/ *) CnlCAAmAUGA DES 0.19( 2/ 2) 0.41( 2/ 23 6 0.1b- 0.19 THM 471-530 0.le- 0.19 0.34- 0.47 L

a. Nominal Lower Limit of Detection (LLD) as described in Table 2.

b. Mean and range based upon detectable measurements only. Fraction of' detectable measurements of specified locations is indicated in parentheses (F).

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• LOCATiuN OF FACILiff emait TCN TtNNEhstt MLP04 TING PERIOD 19F6 .

CONTROL N0*9EH OF TYPE ANO Ldatn LIMIT ALL I LOCATIONS NONR0uTINE TOTAL NUMeth 0F INUICAT0w LOCATION 5 LOCATIom afTn Nfo-L5T ANNUAL WFAN uETtCTION* m e. a N (fi b NAME mEAN (Fsb WEAN (F)b REPORTED 0F ANALYSIS WANGE b ,_ WANGFb wy,3$ g ggeg373 ,_

__EEEfQMLQ J LLO3 WAbstb U 15 Tect AND OIHtCTION e/ 6) 3.ovt 14/ 143 IHM *(2.60 *.22( 2/ 23 3.234 6H055 ALHMA o.100 7.51 20 0.29- 12.*J 4.14- 4.2v 0.86-

14) THM *dJ.* 10.03t 6/ 6) 16.8T( 6/ 63 GROSS BETA 0.100 9.*0( 14/

20 2.54- lo.d* 7.d9- 16.54 9.19- 28.99 i

a. Nominal Lower Limit of Detection (LLD) as described in Table 2.

b. Mean and range based upon detectable measurements only. Fraction of detectable measurements of tpecified locations is indicated in parentheses (F).

(

4 t

%j C .

-,5 L N <

N' W t

TacLe 24 4

=aulJetilv!Tv In 5 6. ti t a t N T

-t1/u - u.u31 o e/o ( aJW Y .tibnT)

Nart OF tatitliv_;L.utvam nuc<ET No. 9M-7v-6-Sul __

LOC.1]uN GF FALIL1rv m a11L2& a. _ IteAtsitL_ *LPomTINu PEWICO 1972 ___

TYPE AND LLata LIMIT *LL CONTdOL Nuw9E4 0F '

TOTAL NVmoE* OF 1,blCATum Luta11ers LLLA11La_31Ja n16-t si A,Nu A t > FAN LOCATIONS NONRouTINE 0F ANALv515 O t i t C T 10 t.* vtaN te l b Newt atAN (F @ REPodTE0 MANGt b mEAN ggygg(tFh

__fEDLtd2Lu __lLLd1____ caN6t b _ L121dSLL_322_l'1t*LTIos "183Mdf2E313_.

GWOSS ALPHA 0.J50 __ 1 .)vt 14/ aes Ine */c.no le.edt */ *) 14.11( 4/ 4)

It 7.ul- ca.o/ 13.96- 16.75 12.3M- 17.06 G40ss BETA 0.700 de.4at Ic/ 12 Tne anu.nl 6. 00( */ 43 52.30( 4/ 4) 16 32.3v- ev.dn 63.*3- 67.77 **.v6- 58.96 6AMMA (GELI) le Ct-1 4 0.oen u. ,( 3/ lts I * *1c.nj 9.o.( </ *) 0.27( 7/ 4) a.d - 1.03 d.de- 1.03 0.20- 0.33 CO-eC 9.019 J.2ot 9/ les far *Te.nJ ' JJ( */ *) 0.21( */ 4) 0.04- u.31 0.29- 0.J5 0.09- 0.31 C5-137 0.020 3. 8s 3 t le/ lel in* +7c.nu i.uJt 4/ *) 2.24( 4/ 4) u.uo- o.df 4.06- 6.27 1.04- 3.1R

/w-45 0.03u e. net 1/ let T== *It.n6 0.ON( 1/ *) 0.10( 1/ 4) u.bn- G.Jw 9.06- 0.Ge 0.10- 0.10 No-95 u.ulu 0.dut 1/ lta inm eld.eJ u.20( 1/ *) 0.26( 1/ 4) 0./u- u.eu 0.20- 0.20 0.26- 0.26 M-40 NOT ESTAe 1e.*64 12/ 14) Ta* **u.od 17.oJE 6 ' 4) 15.25( */ *l 12.30- ro.oo 17.2e- 18.26 12.64- 17.57 b1-21* 0.020 1.33t 1 / 12) Txm *7e.no 1.49( 4/ 4) 1.12( 4/ 43 8 8([h o.*l- 1.vt 1.de- 1.91 0.88- 1.36 61-212 U.100 1.lst 12/ les Ink

• e u .12 1. Jot */ *) 1.01( 4/ 43 0.62- 2.le 0.97- 2.16 0.00- 1.17 PB-214 NUT E5TAH 1.est 14/ tc) Inm *Td.60 1 604 */ *) 1.18( */ 43 0.MT- 1.va 1.*7- 1.93 v.e7- 1.J9 pH-212 NOT E5 TAB 1.63t 17/ le) Twm *72.o0 1.oSE */ *) 1.*5( 4/ 43 0.47- d.lJ 1.67- 2.u? 1.05- 1.73 RA-226 NOT ESTAd 1.JJ t</ 12) TMm 67c.MJ 1.494 */ 43 1.12( 4/ 4)

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0.41- 1.vl 1.26- 1.91 0.68- 1.J6 kA-223 NOT ESIAN 0.5vt */ 12s ind sou.e2 u.out 3/ 43 4 VALUES <LLD 0.56- d.fo 0.54- 0.70 eE-7 NOT thTAd 1. Mot 1/ 12 TMm 61c.n0 1.H0( 1/ 43 4 VALUES <LLD i C 1.80- 1.nu 1.80- 1.Ho

.J TL-706 u.040 u.57t 12/ 12) In> 4Mu.m2 0.6*( 4/ 41 0.*8( 4/ el 0.10 '

. 0.33- 3. f m 9.36- 0.34- 0.58 AC-22e u.060 1.79t Ic/ Ic) 1** *Tc.Mo 2.ud( */ *) 1.54( 4/ 4) 1.el- d.se 1.09- 2.He 1.26- 1.61 PA-228 NOT LSTAn 0.0ft t/ 12) In> 4ou.62 0.09( 1/ *) 4 VALUES <LLD t I' 3 u.0*- 0.uv 0.09- 0.09

SH 69 1.500 12 VALbt5 (LLu

• VALUES <LLD (JN le AN AL V515 et aF 0H*tu (

bd 90 0.300 0.40( J/ 12) Inm 460.42 0.*1( 1/ 4) 4 VALLES <LLD 16 0.Jd- u.*5 0.41- 0.41 .

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a. Nominal Lower Limit of Detection (LLD) as described in Table 2.

b. Mean and range based upon detectable measurements only. Fraction of detectable measurements of specified locations is indicated in parentheses (F).

(

4 Taalt 25 f

-auloaLTidlif 1* LLA" FLt9" a *

-Ll/a - v.J37 m4/o (Okf etlOni) N NAwt LF FACILAI' 2LLE1 73" 00CnET NO. d"-79-4-$91 ___

LOCATION GF FALIL!rY _ra=161Li 1L23152iL_ *ErewTINu ktRICD Ivip__ _ _ _

TYPL AND LUat" LI*lT =LL CONTwot N0* red 0F Tufat NumeEn CF LtLM11gJ .ITM 31kL21_&3 o at

• FAN LOCATIONg NONdOUTI*t

, I N .21 C*thNTua L (P vC) A {IL. 5 f)D RFPO4TED OF ANALYSIS btTtCTIUN %Aw* wtaN

• FAN (

__etetanu 6WO55 ALPNA

__au.a 0.109

_ - a d______

".$4( 7/ o) mia2e.a.w_aicu T i m Im*

• n u . r* / 0.-*(

m(

4/ *)

ae* { l 0.n0( */ 4) eraserru13-.

12 i. . s t - 1.J- 0.33- 1.Ja 0.38- 1.56 GHOSS HETA u.luo la.23a n/ a) ime *nu.62 13.6o4 */ 4) 12.098 */ 45 12 e . r. -

2c.cw 6.1v- 28.2v 3.95- 26.09

(.AMWA (GELI) 12 Ct-l** 0.350 v.T/t 1/ on lar **u.m2 a. Tdt 1/ 43 4 VALLES (LLO

0. !c - J.lc J.12- 0.12 CS-137 0.060 1.1/f 1/ ns 1-* =a>."2 1.12( 1/ el 1.26( 1/ *)

I 1.12- 1.lc 1.12- 1.12 1.26- 1.26 n-*0 NOT L5TAH I.19( 1/ el T** *no.et d.J4( 3/ 4) 7.93( 3/ 4) f.9e- II.la e.*5- 11.12 5.19- 10.35 '

4I-214 AUT EsTAs u.iv( // na fam -mo.a2 1.u!( J/ 4) 1.9d( 4/ 4)

O.3=- 2.c ') . d 2 - 1.15 0.34- 5.e5 PM-2)* A0T ESTAN o. set e/ n) IM* *a3.* J."At */ *) 2.104 4/ 4) s./*- 2.15 0.24- 2.15 0.45- 6.05 Pe-212 NOT EdiAn u..t( 1/ "I iww *eu.e2 'J . o b t 3/ 41 0.668 3/ 43 c.1/- 1.ul 0.43- 1.0T 0.22- 1.16 TL-706 NOT EdTam u.2+t 3/ o) TM* *eu.M2 0.29( 2/ 63 0.27( 1/ 4)

.s . l * - 0.J/ 0.26- 0.32 0.2T- 0.27 AC-226 NOT LSTAN u.mTt */ d) inM *nu.92 0.9F( 3/ el 4 WALUES <LLO o.%e- 1.*/ J.73- 1.*2

a. Nominal Lower Limit of Detection (LLD) as described in Tabit 2.

b. 34ean and range based upon detectable measurements only. Fraction of detectable measurements of specified locations is indicated in parentheses (F).

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Taalt 26

--o l .;& c T I v 1 T v 1,CLA* dntLL

-ta/o - 3.037 *w/o (vwy *E16mT) mart CF

• A C i t l i r_isiksl a r_ - UuCNET No. an-79-*-231_

LOCAT!vN Uf FACILITY 1Lik3 it.ng),tt -tPCGTINu ptaI00 Iv7e __

Tvet ANO LC*ta LIw1T ELL CONTuot NU* red CF TGTal Nu%Ea uF 1 uit.afu- LuCATIu,, gtg alla_31.Ir_nf rim a t_ eraN LnCATloss NONdOOT!NE b wgpodTE:1 of ANALYSIS UtitCT!cN*

• t - t. (*i sawt

• TAN (e n" wfAa ( e- )b

..dt:LLEILQ __lLL21____

• mtL b gl2132sL_332_Jia:LT10s - A N2, b -33rgb j wr3Sy3g3g3J3_,

G405% AL9"A U.T00 __ d.lut  ?/ m) Tne eau.ae d.**( */ *) 1.50( 3/ *)

12 . 7/- J.a* 1.ce- 3.e* 0.99- 2.17 Owuss NEla 0.100 .3v( r/ n) 1 -- * ; ' . n / 4.**( */ *) 7.494 4/ *)

12 6.Se- lu.le 9.3*- 10.1% e.97- 9.33 Garma (GELI) 12 Lu-e0 v.ulo s . vat 3/ e) Tw" *su.m/ v.u3( 3/ *)

• WAL0tS <LLD

. o .3 - s.a3 u . <13- J.03 C5-137 u.u20 u.a*( */ el Ta* **s.a2 0.06( */ *) 0.03t 1/ *)

u.ed- u.01 0.02- 0.07 0.03- 0.03 P-40 U.250 ..wot */ ts Ir* wow.e is . 6 0 ( c/ *) 0.724 3/ 4) s.35- J.cr 3.b*- 0.66 0.36- 0.e4 HI-714 0.05b e. lit T/ c) 1-w *mu.a2 0.dj( */ *) u.lSt 4/ 4)

J.;e- L.de 9.eu- 0.2n 0.13- 0.i7 61-712 0 100 ..i=( 1/ m) i== *Mu.e2 9.24( 1/ *)

• VALUES <tLO v.?*- ver* v e*- 0.2 ve-?!* u.usu -3.16 ( -/ *) 1** *nu.-2 a.23( */ *) 0.l*( */ 4) -

3.00- U.r* ).di- U.de 0.11- 0.16 '

vn-212 NOT tSTA. U.]*( // m) T-M *nu.g2 p.2*( J/ *) 0.13t 4/ 4) u.ng- u.27 ..23- 0.2T o.10- 0.17 TL-206 0.u20 n.u?( e/ M) law *nc.12 u.09( */ 43 0.04( 4/ 4)

't . 0 2 - 0.11 J.ub- 0.11 0.03- 0.05 AC-72n 0.ub0 9.?5( // e) ImV *ab.e? H.*lt */ *) 0.19( 3/ *)

. ta- 0. - u.33- 0.49 v.13- u.23 Sw n4 5.400 5 dALLE5 (Lt) 4 WALUE5 <LLO 12 ANALYdis PEarOw tb 3R 9n 1.a00 1.ITt r/ el T-* *nu.*/ 1.924 s/ 4) 1.58( 3/ 4) 12 1.oo- e.d1 1.do- 1.95 1.*l- 1.oD

a. Nominal Lower Limit of Detection (LLD) as described in Table 2.

b. Mean and range based upon detectable measurements only. Fraction of detectable measu ts of specified locations is indicated in parentheses (F).

)

q b

se

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CX) .

45 Quality Control A quality control program has been established with the Tennassee Department of Public Health Radiological Laboratory and the Eastern Envi-ronmental Radiation Facility, Environmental' Trotection Agency, Montgomery, Alabama. Samples of air, water, milk, fish, and soil collected around nuclear plants re forwarded to these laboratories for analysis, and results are exchanged for comparison.

Conclusions Since Sequoyah Nuclear Plant has not achieved criticality, there has been no contribution of radioactivity from the plant to the environuent.

The levels of radioactivity being reported in this document are due te natural background radiation, nuclear weapons testing, or other nuclear operations in the area.

Increased levels of radioactivity were observed in milk, rainwater, air particulates, heavy particle fallout, vegetation, and in atmospheric radioiodine in March and April following the atmospheric nuclear weapons testing conducted by the Republic of China. This increase was widely reported in the eastern portion of the United States. Levels of 231 I in milk as high as 2.85 pC1/1 were observed. The primary radioisotopes identified in the atmospheric media were 1""Ce, '5 Zr, 9sNb, 183 Ru, 331 1, I"'Ba, and I"0 La.

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