ML18024A861

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Environ Radioactivity Levels,Annual Rept 1978, Revised Version
ML18024A861
Person / Time
Site: Browns Ferry  Tennessee Valley Authority icon.png
Issue date: 12/31/1978
From:
TENNESSEE VALLEY AUTHORITY
To:
Shared Package
ML18024A860 List:
References
RH-79-3-BF2, NUDOCS 7906220374
Download: ML18024A861 (48)
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Text

RH-79-3-BF2 ENVIRONMENTAL RADIOACTIVITY LEVELS BROGANS FERRY NUCLEAR PLANT ANNUAL REPORT

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(Revt.sed)

IIPgg N EMIR Itt@l HB Revised May 1979

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CONTENTS Introduction Figure 1 Tennessee Valley Region Table 1 Environmental Radioactivity Sampling Schedule Atmospheric Monitoring .

Figure 2 Atmospheric and Terrestrial Monitoring Network .

Figure 3 Local Monitoring Stations Table 2 Detection Capabilities for Environmental Sample Analysis Table 3 Maximum Permissible Concentrations for Table 4 Nonoccupational Exposure.

Radioactivity in Air Filter ll 12 Table 5 Radioactivity in Rainwater . 14 Table 6 Radioactivity in Special Rainwater 15 Table 7 Radioactivity in Heavy Particle Fallout 16 Table 8 Radioactivity in Charcoal Filters 17 Terrestrial Monitoring . 19 Table 9 Radioactivity in Milk 21 Table 10 Radioactivity in Special Milk 22 Table 11 Radioactivity in Vegetation 23 Table 12 Radioactivity in Soil 25 Table 13 Radioactivity in Well Water 26 Table 14 Radioactivity in Public Water Supply . 27 Table 15 Environmental Gamma Radiation Levels . 28 Table 16 Radioactivity in Food Crops 29 Table 17 Radioactivity in Soybeans 31 Table 18 Radioactivity in Poultry 32 Reservoir Monitoring 33 Table 19 Sampling Schedule Reservoir Monitoring 35 Figure 4Reservoir Monitoring Network . 36 Table 20 Radioactivity in Surface Water (Total) 37 Table 21 Radioactivity in Fish (White Crappie, Flesh) 38 Table 22 Radioactivity in Fish (Smallmouth Buffalo, Flesh) 39 Table 23 Radioactivity in Fish (Smallmouth Buffalo, Whole) 40

'able 24 Radioactivity in Plankton 41 Table 25 Radioactivity in Sediment 42 Table 26 Radioactivity in Clam Flesh 43 Table 27 Radioactivity in Clam Shell 44 Quality Control Data Analysis 45 Conclusions ~ ~ ~ 45

ENVIRONMENTAL RADIOACTIVITY LEVELS BROWNS FERRY NUCLEAR PLANT ANNUAL REPORT 1978 Introduction The Browns Ferry Nuclear Plant (BFNP), operated by the Tennessee Valley Authority, is located on a site owned by TVA containing 840 acres of land in Limestone County, Alabama, bounded on the west and south by Wheeler Reservoir (see figure 1). The site is 10 miles southwest of Athens, Alabama, and 10 miles northwest of Decatur, Alabama. The plant consists of three boiling water reactors; each unit is rated at 3,293 MWt and 1,098 MWe. Unit 1 achieved criticality on August 17, 1973, and began commercial operation on August 1, 1974. Unit 2 began commercial operation on March 1, 1975. However, a fire in the cable trays on March 22, 1975 forced the shutdown of both reac-tors. Units 1 and 2 resumed operation and Unit 3 began testing in August 1976. Unit 3 began commercial operation in January 1977.'he preoperational environmental monitoring program established a baseline of data on the distribution of natural and manmade radioactivity in the environment near the plant site. However, seasonal, yearly, and random variations in the data were observed. In order to determine the potential increases in environmental radioactivity levels caused by the plant, compari-sons were made between data for indicator stations (those near the plant) and control stations (those remote from the plant) in conjunction with comparisons with preoperational data.

, 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 19.

Sampling locations are shown in figures 2, 3, and 4. All the radiochemical and instrumental analyses were conducted in a central laboratory at Muscle Shoals, Alabama. Alpha and beta analyses were performed on Beckman Low Beta II and Beckman Wide Beta II low background proportional counters. Two Nuclear Data Model 100 multichannel analyzer. systems employing sodium iodide, NaI(T1) detectors and one Nuclear Data Model 4420 in conjunction with Germanium, Ge(Li) detection systems, were used to analyze the samples for specific gamma-emitting radionuclides. Samples of water, vegetation, air particulates, food crops, and charcoal (specific analysis for I) are routinely counted with Nal(Tl) detection systems. If significant concen-trations 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. Iden-tification of gamma-emitting radionuclides in all other types of samples is routinely performed by analysis on the Ge(Li) system. A TVA fabricated beta-gamma coincidence counting system is utilized for the determination of I-131 concentrrations 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 associated with estimating the activities of the gamma-emitting nuclides analyzed by NaI(Tl).

The data obtained by Ge(Li) detectors were resolved by the ND-4420 software.

The detection capabilities for environmental sample analysis given as the nominal lower limits of detection (LLD) are listed in table 2. Samples processed by NaI(T1) gamma spectroscopy were analyzed for 13 specific gamma-emitting radionuclides and radionuclide combinations*. All photopeaks found in Ge(Li) spectra were identified and quantified. Many of the isotopes identified by Ge(Li) spectral analysis are naturally occurring or naturally produced radioisotopes, such as Be, K, Bi, Bi, Pb, Pb, Ra zzRn, etc. LLD's for the analysis of the radionuclides listed below* are given in table 2-B. LLD's for additional radionuclides identified by Ge(Li) analysis w'ere calculated for each analysis and nominal values are listed in the appropriate data tables. In the instances where an LLD has not been established, an LLD value of zero was assumed. 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 the ALPHA-M least-squares computer code: 141>14~ce; slcr; 1311; Ru Cs; Cs; Zl-Nb'o; Mn Zn Co; K'nd Ba-La

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- BELLEFONTE NUCLEAR PLANT I ~-- BROWNS FERRY NUCLEAR PLANT YELLOW CREEK NUCLEAR PLANT I

Table 1 ENVIRORIENTAL RADIOACTIVITY SAMPLING SCHEDULE Air Charcoal Rain- Heavy Particle River Well Public Aquatic Life dtati n rotation Ptlter Fitter ter Patio t Soil ~V* etation Milk li ter llater liat r and dedi ent ronde Muscle Shoals W W A Lawrenceburg W W Rogersville W W Athens W W Decatur W W Courtland Site NW-1 Site N-2 W W Site NE-3 W W'ite NW-4 W W Site WSW-5 W W M Farm B Farm Bi Farm H*

Farm S*

Farm T Farm L Control Farms Onsite Well Wheeler Dam Elk River Tennessee River Champion Paper Co.

Various Local Farms W Weekly M Monthly S-Semiannually A-Annually in therefore milk samples were no longer available. Farm S was substituted for

  • Farm H went out of the dairy business May 1978; Farm H in the same month.

ATMOSPHERIC MONITORING The atmospheric monitoring network is divided into three groups.

Four local air monitors are located on or adjacent to the plant site in the quadrants of greatest wind frequency. One additional station is located at the point of maximum predicted off-site concentration of radionuclides (see figure 3). Four perimeter air monitors are located at distances out to 10 miles from the plant, and two remote air monitors are located at distances out to 45 miles. These monitoring stations are shown in figure 2. The remote monitors are used as control or baseline stations. At each monitor, air is continuously pulled through a Hollingsworth and Voss HV-70 particulate filter at a regulated flow of 3 ft /min. In series with, but downstream of, the particulate filter is a charcoal filter used to collect iodine. Each monitor has a collection tray and storage container to obtain rainwater on a continuous basis and a horizontal platform that is covered with gummed acetate to catch and hold heavy particle fallout. Thermoluminescent dosimeters are used to record gamma radiation levels at each remote and perimeter station.

Each of the local air monitors is fitted with a GM tube that con-tinuously scans the particulate filter. The disintegration rate of the atmospheric radioactivity is continuously recorded at each station and radio-telemetered into the plant. These stations will detect any significant air-borne release from BFNP.

Air filters are collected weekly and analyzed for gross beta activ- .

ity. During this reporting period, one sample was lost because until of equipment malfunction and one was lost. No analyses are performed three days after sample collection. The samples are composited monthly 89 for 90 analysis of specific gamma-emitting radionuclides and quarterly for Sr, Sr analysis.

The results are combined for each station to obtain a annual average. These data 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 2.71 percent MPC. This concentration occurred at a control station during a period of fallout from atmospheric nuclear weapon testing.

Rainwater is collected monthly and a 3.5-liter sample analyzed for specific gamma-emitting radioisotopes. The results are shown in table 5.

In this sampling period, one sample was lost when its container burst, two were lost because of damaged equipment, and one sample contained insufficient water for analysis.

II In addition to the regularly scheduled rainwater samples, three special samples were taken at the expected time of arrival of fallout from an atmospheric nuclear weapons test. These data are presented in table 6.

The gummed acetate that is used to collect heavy particle fallout is changed monthly. One sample was lost during this reporting period and three were damaged 'to the extent that insufficient material was left for analysis. The sample is ashed and counted for gross beta activity. The results are given in table 7.

Charcoal filters are collected and analyzed for radioiodine.

The filter is counted in a single channel analyzer system. The data are shown in table 8, where the highest value reported is 0.08 percent MPC for I. In this reporting period, one sample was accidently destroyed, and two were lost due to equipment malfunction.

Figure 2 ATMOSPHERIC AND TERRESTRIAL MONITORING NETWORK RM-2BF LAWRENCEBURG yPULASKI F AYETTEVILLE gp PM-IBF WILSON WHEELER ROBE SVIL OAM OAM ATHENS FLORENCE PM-2BF FFIEL MUSCLE HUNTSVILLE SHOALS BROWNS FERRY NUCLEAR PL NT RM-I BF LEIGHTON TUSCUMBIA COURTLANOQ PM-4 F OECAT R PM-38FO IO MILES PRUSSELLVILLE SV IL GUN T HARTSELLE OAM HALEYVILLE CULLMAN 45 MILES Q- ENVIRONMENTAL MONITORING STATION NOTE: THE FOLLOWING SAMPLES ARE COLLECTED FROM EACH STATION:

AIR PARTICULATES RAINWATER RADIOIODINE SOIL HEAVY PARTICLE FALLOUT

Ffgure 3 LOCAL MONITORING STATIONS BROWNS FERRY NUCLEAR PLANT ATHENS US HWY 72 BFNP ALA. HWY 20 iLegend 8 Air Monitor DECATUR

~ Air Monitor & TLD Station TLD Station A Automatic Well Sampler Scale H Dairy Farm 0 I 2 '

4 5 Miles

Table 2

-DETECTION CAPABILITIES FOR ENVIRONMENTAL SAMPLE ANALYSIS A. S ecific Anal ses NOMINAL LOWER LIMIT OF DETECTION LLD

  • Fish, Air Vegetation Soil and clam flesh, Foods, meatd Particulates Charcoal Fallout Water and grain Sediment plankton, Clam shells poultry, Milk

~Cd/I mCi/Kmz ~Ci 1 g>~Ci/ der ~Cd/ . dc P~Ci/ ~~dr ~Ci/ ~dr Ci/ m wet ~Ci/1 Total a 0.4 0. 01 1.5 Gross a. 0. 005 0.05 2.0 0.05 0.35 0.1 0.7 Gross g 0. 01 2.3 0. 20 0.70 0.1 0.7 25

'H 330 131I 0.01 0.5 09Sr 0. 005 10 0.25 1.5 0.5 5.0 40 10 90Sr 0. 001 2 0.05 0.3 0.1 1.0 8 2

+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 efficiency may vary for a given sample; these variations may change the LLD value for the given sample. The assumption is made that all samples are analyzed within one week of the collection date. Conversion factors: 1 pCi 3.7 x 10" Bq; 1 mCi ~ 3.7 x 10 Bq.

Table 2 DETECTION CAPABILITIES FOR ENVIRONMENTAL SAMPLE ANALYSIS B. Cessna Anal ses NOMINAL LOWER LIMIT OF DETECTION LLD Air Water Vegetation Soil and Clan flesh Foods,. tonatoes Meat and particulates and milk and grain sediment Fish and plankton Clam shells potatoes, etc.) poultry rr

~

~ca e ~CL /i NCC// dd KCCL/ ad rr a~Ca/ '.~ar ~CL/ dr ~Ctl dr Ci/ m wet ~Ct/K ear

. Na&'Ce Li +* NaI ~Ge Li NaI ~Ge Li NaI ~Ce Li Nar ~ce Li Na? ~ce Li NaI ~Ge Li NaI C~eLi NaI ~Ge Li ill ~ 1 N0Ce 0. 03 38 0.55 0.35 0. 35 0.35 38 90 1 Na a/Ce 0. 02 0.22 0.06 33 0.06 0.06 0.35 33 . 40 "Cl 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 1311 0.01 0.01 0.35 0.09 0.20 0.02 0.20 0.07 0.20 0.02 10 3 N 106Ru 15 8 0.02 15 8 50 20 0.04 40 0.65 0.45 0.45 0.45 40 150 106Ru 0.03 40 0.51 0.11 0.11 0.74 0.11 40 90 13%G 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 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 ssZr-Nb 0. Ol 10 0.20 0.12 0.12 0.12 10 40 SSZr "Nb

0. 01 10 '.11 0.03 0.03 0.15 0.03 10 20
0. 01 5 0.05 0.01 0.01 0.07 0.01 5 15 ssCo 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 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 5 40 15 6sZn 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 60Co 0.01 0.01 10 5 0.17 0.06 O.ll 0.01 0.11 0.01 0.08 0.11 0,01 10 5 30 15 00K 0.10 150 2.50 0.90 0.90 0.90 150 400 100Ba-La 0. 02 15 0.68 0.15 0.15 0.15 15 50 1 Naos
0. 02 25 0.34 0.07 0.07 0.30 0.07 25 50 1 aa OLa 0. 01 7 0.08 0.02 0.02 0.10 0.02 7 15
  • The NaI(T1) 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 sanple. Water is counted in a 3.5-L Marinelli beaker. Vegetation, fish, soil, and sediment are counted in a 1-pint container as dry weight The average dry weight is 120 grams for veget'ation and 400-500 grams for soil sediment and

~

fish. Meat and poultry are counted in a 1-pint container as dry weight, then corrected to wet weight using an average noisture content of 70X. Average dry weight is 250 grams. Air particulates are counted in a well crystal., The counting system consists of a nultichannel analyzer and either a 4" x 4" solid or 4" x 5" well NaI(T1) crystal. The counting time is 4000 seconds. All calculations are performed by the least-squares computer program ALPHA-M. The assunption is made that all samples are analyzed within one week of the collection date.

  • "The Ge(Li) 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.

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 in a 0.5-L Marinelli beaker as dry weight. The average dry weight is 400-500 grans. 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 8X, 14X, or 16X Ge(Li) detector. The counting tine 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 assumption is made chat all samples are analyzed within one week of the collection date.

Conversion factor: 1 pCi 3.7 x 10 Bq.

Table 3 MAXIMUM PERMISSIBLE CONCENTRATIONS FOR NONOCCUPATIONAL EXPOSURE In Water In Air

~C1/1 ~Cf /m Alpha 30 Nonvolatile'beta 3,000 100 Tritium 3,000,000 200,000 137C 20,000 500 103$ 106R 10&000 200 C 10 F 000 200 96Zr-"Nb 60,000 1,000 140Ba 140La 20,000 1,000 131Z 300 100 Zn 100,000 2$ 000

'"Mn 100$ 000 1,000 60C 30,000 300

'"Sr 3,000 300 90Sr 300 30 blC 2,000,000 80,000 134Cg 9,000 400 58Co 90,000 2$ 000

TABLE 4 RADIOACTIVITY IN AIR F ILTER PCI/M(3) - Oe037 BQ/H(3)

NAME OF F AC I L I TYBBQh<IS EEBBY DOC~ET ) O, BL)mZBmamBEZ LOCAT IO"< OF FAC ILITY LIQESI()UE 4L484()4 REPORTING PERLOD 1228 TYPE AND LOWER LIMIT ALL CONTROL NUMBER OF TOTAL NUMBER OF INDICATOR LOCATIONS LacaZLa<I VLZV VLGVESZ 4(<NU4L 0E4~> LCCAT IONS NONROUTINE OF ANALYSIS DETECTION MEAN (F)b NAHE MEAN (F) MEAN (F) b REPORTED REBEDBIIEG CLLOl BhblGE b QISI4UCE 4QD OLBECIIQII B4((GE~ 8AUGEb UE4S<)BELIE<<IS GROSS ALPHA Oo005 Oeol< 24/ 51) 51 Oeol- Oe09 GROSS BETA Oi010 oel2( 466/ 466) DECATUR'L 0 '4( 5z/ 5z) Oilz( 104/ 104)

GAMMA 57o (HAI) oe02 Ze57 8 2 MILES SSE 0 ~ 03- 2 '6 0 ~ 02 2 '1 114 CE-L4Lo 144 Oo030 oe04( 7/ 93) LH5 BF DAVIS F Oe04( 1/ 10) Oe04( 1/ 21) oe03- Oeo4 2e5 HILES WSet 0 ~ 04- 0 F 04 o.o4- o,o4 BA-140'A>>140 0 '20 0 ~ 02( 4/ 93) LH4 BF TRAILER P ooOZ( 1/ 11) 0 ~ 03( 1/ 21 )

0 F 02>> Oe02 1,7 MILES NNW 0 ~ 02- oooz Oe03 0 F 03 RU-LO3o 10o 93 VALUES <LLO Oe05( 1/ 21) 0,040'eolo Oe05>> 0 ~ 05 CS-134 Oeol( 1/ 93) LHL BF'NORTHWEST 0 ~ 01< 1/ 11) 21 VALUES <LLD Oeol>> Oe01 1 ~ 0 MILE oeol- Oool ZR"95eNB-95 Oeolo Oedl( 3/ 93) ROGERSVILLEp AL Oeol < 1/ 11) Oeol < 1/ 21)

Oeol>> OeOL 13 ~ 8 MILES NW Ojol- Oe01 o,ol- O.ol I 131 Ooolo oe03(

'2 6/

0,04

93) LM3 BF NORTHEAST leo MILE Oe04( 1/ 9) 0 '2(

Oeol-3/ 21) 0 NE 0)04 Oo04 0 ~ 02

.BE 7 NOT ESTAB Oe?L( 93/ 93) LHL BF NORTHWEST 0 ~ 13( 11/ 11) 0 ~ 11( 21/ Zl) 0 ~ 06>> Oe21 leo MILE oi 10 oe21 Oe05 Oe17 GAMMA (GEL I) 18 CE-141 NOT ESTAB Oe04( 9/ 15) DECATUR@ Al Oo08( 1/ 3) oe04(  ?,/ 3) 0 ~ 0? Oeog Be2 HILES SSE Oo08>> 0 F 08 0 ~ 04 Oe05 CE-144 0 F 020 oe05( 4/ 15) LH3 BF NORTHEAST Oi13 ( 1/ 3) 3 VALUES <LLO 0 F 02>> = Oel3 1,0 HILE NE oiL3- 0 ~ 13 BA-140 OeoZO OelZ( 9/ 15) LH4 BF TRAILER P Oel7( 1/ 0 ~ 15( 2/ 3)

LA-140 Ooolo 0 '9 Oe14(,

Oe17 9/ 15)

Le 7 HILCS NNW LM5 BF DAVIS F 0)L7-Oe35(

0 ~ 17 1/ 2)

Oe 0 ~

ll 13(

0 ~ 20 2/ 3)

Oe09 Oe35 2 ~ 5 MILES WSW oi35- 0,35 Ot 10 0 ~ 15 RU-103 NOT ESTAB Oe06( 9/ 15) ROGERSVILLEx Al Oo07< 1/ 0~07( 2/ 3)

Oi05 0 ~ 07 13,8 HILES N)< Oo07". 0 F 07 0 ~ 08 CS-137 OeolO 0 ~ 02(

Oe02" 1/

Oe02

15) LH5 BF DAVIS F 2o5 Hl lES 'HSW o,oz(

0<02-1/

oe02

2) 0 '2(

Ojoz 1/

0 ~ 02 3)

ZR-95 ooolo OedZ( 1/ 15) LH2 BR NORTH Oe02( 1/ Oeol( 1/ 3)

Oe02- Oo02 0,9 MILE NNE 0002- 0 ~ 02 Oyol 0 ~ 01 NB-95 Oe 010 Oedl( 2/ 15) OECATURo AL 0 F 01( 1/ 3) Oool< 1/ 3]

Oeol - Oeol Be2 MlLES SSE 0joL oool Oeol- Oeol K-40 NOT cSTAB Oe07( 4/ 15) DECATUR@ Al Ooog( 2/ 3) Oe09< 1/ 3)

Oeo5 Oeog 8 ~ 2 MILES SSE Oeog>> o,08 0)09>> 0 F 09 1-131 oo 010 Dell( 9/ 15) LH4 BF TRAILER P Oe19( 1/ Oo13( 2/ 3)

Oeog Oe 19 1 ~ 7 HILES NNW oe19" oel9 Dell- Oe14 81-214 Oo020 le40( 9/ 15) LM3 BF NORTHEAST 4el4( 3/ 3) OeoZ( 2/ 3)

Oe02= 12e35 1,0 MILE NE 0 ~ 02 12e35 o,oz- o,oz 81-212 NOT ESTAB Oed2( 1/ 15) DECATUR'L Oo02( 1/ 3) 3 VALUES <(.LD Oe02 Oe02 8 2 HILES SSE 0 ~ 02- oe02

a. Nominal Lower Limit of Detection (LLD) as describe d kn Table 2.
b. Mean and range based upon detectable measurements only. Practica of det ectable measurements of specified locations is indicated in parentheses (P).

TABLE 4 (CONTD)

RADIOACTIVITY IN AIR FILTER PCI/H(3) - Og037 BQ/H(3)

NAHE QF FACILITY dEQHBS EEBBY DQCKET NO ~ Rhls79=3"8EZ LOCATION OF FACILITY LIIIESIQBE ALABAIIA REPORTING PERIOD 1928 TYPF ANO LOWER L I '(IT ALL CONTROL NUHBER OF LQCAIIQu-)(IIV UIGUESI

'/

TOTAL NUHBER OF INDICATOR LOCATIONS A((DUAL ()EAU L'QCAT ION) NONRQUTINE HEAN (F)

> HEAN (.F) REPORTED OF ANALYSIS OETECTIONa HEAN (,F) NAHE PEREQEUEQ CLLO1 QISIAUGE-AUQ OIEECZIQH RANGE b - 84IIGP IIEASUEEIIEIIIS PB-214 NOT ESTAB eANGk'e64(

12/ 15) LH3 BF NORTHEAST Rt48( 3 0 >01( 3/ 3) 8-212 NOT ESTAB Oe00 15 VALUES <LLO 7 'o 1g0 NILE NE 0 ~ 01 7 ~ 40 Ot01 0 t01(

De01 2/ 3)

P 39t55( 2/

0,00',0), 3/

NOT ESTAB 6.66( 12/ 15) LH3 BF NORTHEAST 3) Oi08{ 3)

BE 7 TE-132 Og05- 79 '2 1/ 15) ls0 NILE NE ROGERSVILLEi AL Ot09-Ot08(

79 F 02 1/ 1)

Oe08~ 0 '9 3 VALUES <LLD NOT ESTAB Oo08(

89 Oe005 Oe0!

0 ~ Ol(

0108 9/ 36) 13 ' HjLES NW LH4 BF TRAILER P 0,08-Ot02(

Og08 I/ 4) Ot01( 2/ 8) '

SR OsOI Og02 17/ 36) 1 7 HlLES NNW OtOZ Ot00(

0 R/

'2 4)

F 01~

Ot00(

0 ~ OR 4/ 8)

SR 90 Oe001 0 F 00( (,HR BF NORTH Os00 Oe00 0 ' HlLE NNE Ot00 0,00 Ot00~ 0 F 00

a. Nominal Lover 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).

TABLE 5 RADIOACTIVITY IN RAINWATER PCI/I, - Oe037 BQ/L t'AHE OF FACILITY BBOWNS EEBBY DOCKET NO ~ BUsZQ"SmBEZ LOCATION OF FACILITY LXUESIOHE ALABAMA REPORT It'G PERIOD 'le)28 TYPE AND LOWER LIMIT ALL CONTROL NUMBER .OF TOTAL NUMBER OF INDICATOR LOCATIONS LGCAIIOU WIZEN UIGIIESI A(IIIUAL IIEAB I.OCATIONS NONROUTINE OF ANALYSIS DETECTIONa HEWN ([) NAHE HEAN (f )b MEAN (F) b REPORTED I? EBEOBLIEO ILLOI BhLIGE OISIAIIGE A WO OIBECIIOU BAUGE BAUGE HEASUBEIIEIIIS GAMMA (NAI) 99 BA-L40e LA"140 15 e 000 18 '5( 7/ 80) DECATUR'I, 21e49( 1/ 9) 18eb2( 1/ 19) 15e65>> 21e49 Be2 HILES SSE ZL)49- ZLe49 L8eb2 18eb2 CS 134 10 F 000 Lle00(

10e71>>

2/ 80) 11,28 DECATUR'I, Be2 HII,ES SSE 11,28(

LL t28 L/

11 e28 10 10

'8(

'8" 10 1/

'8 19)

ZR-95@NB-95 LOe000 12e60( 1/ 80) LHL BF NORTHWEST LZ>60( 1/ 9) ).9 VALUES <LI,D 40, 150 000 12e60 171e57(

12 '0 1/ 80)

Lep HII,E N LZ)60 12e60 K COURTLANDr AL L7L(57( 1/ 9) 19 VALUES <LLD 171 e 57>> 171 ~ 57 10e5 MILES WSW LTLt57>> 17L e57 I"131 15e000 16,15( 1/ 80) ATHENS'L lbt 15( 1/ 11) 22e59( 1/ 19) lb.lS- 16 ~ 15 LO ~ 9 HILES NE LbrL5- 16,15 22e59>> Zg ~ 59 BE-7 NOT ESTAB 34e75( 29/ 80) LH5 BF DAVIS F 54,68( 2/ 8) 27e68(- 11/ 19) 1 e 68" 92e44 2' MII.ES WSW Lbt93>> 92e44 De83 67e90 GAMHA '(GEL I )

29 CE 144 33e000 44 '9( 1/ 24) LH2 BF NORTH 44p79( 1/ 2) 5 VALUES <LI.D CS>>137 5,000 44e79>> 44e79 24 VALUES <LLD 0 ' MILE NNE 44t79>> 44 '9 7 ~ 48( 1/ 5)

K 40 NOT ESTAB 90e86( 8/ 24) LH2 BF NORTH Z43t10( 1/ 2) 7)48>>

95p77(

7 2/

'8 5) 23eBO 243e10 Oe9 HII,E NNE 243,jo P43elp 92)50>> 99e04 81>>214 NOT ESTAB 19e27( 11/ 24) LH3 BF NORTHEAST 33)06( 1/ 4) Lbtbp( 3/ 5) 7e69>> 33 '6 I'e 0 MILE NE 33)06>> 33e06 2e47>> 24e47 PB 2'L4 NOT ESTAB 14e42(

LOe68>>

6/ 24) 1'3 LH2 BF NORTH MILE NNE LBq63(

LBq63-i/

18,63

2) 18e28( 1/

LBe28 5)

Oe9 18e28 PB 212 NOT ESTAB 9e13( 5/ 24) LH2 BF NORTH 17 ~ 02( 1/ 2) 8)73( 2/ 5)

BE-7 5 '80 17e02 0 ' MII.E NNE L7iPZ>> 17e02 6 ~ 82>> 10 ~ 63 tIOT ESTAB 96'eT2( 4/ 24) Lt(5 BF DAVIS F L64t40( 1/ 3) 54gOL( L/ 5)

TR IT IUH 330 F 000 64 F 09>> 164 ~,40 368,00( 4/ 48) 2,5 MILES MSW LH5 BF DAVIS F 164,40- 1,64 396t00( 1/

'0 4) 54eOL>>

414e00(

5(eeDL 2/ 12) 60 334 F 00>> 396e00 2e5 MILES WSM . 96t00 396e00 364e00>> 464e00

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).

"c-J'ADIOACTIV .,TABLE 6 I>Y IN I/L SPEC IAL Oe037 BQ/L RAINWATER'C

(

( - .

4

."ttAHE-gF FACILITY BBQWUS EEBBY

=LOCATION 'OF FACILITY LIUESZOUE ALAB41)4 RE DOCKET hO ~ BUn29"3mBEZ pORT ING P ER IOO LQZB TYPE AND LOIIER I "(IT - ALL CONTROL NUHBER OF TOTAL N(fHBER"'F" L

. - INDICATOR'LOCATIONS LQcazlQU I(lzU UIGUEsz AUUUAL D'EAU < I.QCAT IONS (F)b NONROUT INE OF ANALYSIS 'ETECTION a - . MEAN (F} b NAHE HEAN (F) MEAN REPORTED EEBEQBL)EQ iLLQL' "'AUGEb OISZAUCE AUQ QIBECZIQU BAUGE b'4UGE BEASUBEUEUZS

( GAHlRA (GELI.)

140 25 F 000 77e9L( 1/ "

Z) I.HL BF NORTHWEST, 77e91( 1/ 1) 1 VALUES <LLO BA 7? ~ 91~ 77e9l leo HILE N 77e9L 77 1/

'1 LA-140 F 000 e3,69( 2/ 2) ATHENS'L 76( 1) 1 -VALUES <LLD

'6 43e61 43 10 ' HILES NE 43e76 43,76 RU-103 20e000 39 '6( 2/ 2) ATHENS'L 40 40e52~

'2( 1/

40,5Z

1) Zoelg( 1/ 1) 38,8o 40.52 . loe9 MILES NE ZoeLB~ 20eLB ZR-95 10,ooO 37 90( 1/ 2) I.HL BF'NORTHWEST 37 '0( 1/ 1) 1 VALUES <LLD 37 '0i 56 ~ 89(

37e90 2/ 2) leo,HILE N LHL BF NORTHWEST 37e90~

65t96(

37e 90 1/ 1) .1 VAI.UES <LLO NB 95 F 000 Biooo 47e82~

-63 99(

65 2/

'6.

2)

Leo MILE ATHENS'AL N 65e96 Boi95(

65 1/

'6 1) 60e29( 1/ 1) 1-131 46e2?~ 80e95 Loe9 HII,ES NE Sot)5 Boe95 60e29~ 69e29 B 1-214 NOT ESTAB 53i45( 1/ 2) ATHENS@ AL 53 ~ 45( 1/ 1) L-VALUES <LLD 53 ~ 45 53e45 loe9 MILES NE 53i45 53,45 TL-208 10 ~ 000 2 VALUES <LLO 26e54( 1/ 1) 26e54i 2(te54 1-132 NOT ESTAB 233eoo( 2/ ATHENS'L ?52 '0( 1/ 1) 195e60( 1/ 1) 213e70 252e30 Loe9 H/LES NC 252t30i 252e30 L95t'60- 190e60 TE-132 83,94( 2/ Z) ,ATHENS'L 96e49( 1/ 1) 41t?5( 1/ 1)

NOT ESTAB 71,39- 96,49 10 ~ 9 HILCS NE ATHENS'L 96t49 96 '9 41e75 4L ~ 75 TC-99H NOT ESTAB 52 68( 2/ 2) 79141( 1/ 1) 1 VALUES <LLD 25 '4 79 '1 loe9 HILES NE 79(4L~ 79e41

a. Nominal Lover 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).

e v

TABLE 7 RADIOACTIVITY IN HEAVY PARTICLE FALLOUT MC I/KM(2) 37000000t00 BQ/KM(2)

NAHE OF FACILITY RRDWUS EERRY DOCKET NO ~ RUsl9minRE2 LOCATION "OF FACILITY- LIUESXOUE 4L46454 REPORTI )tG PERIOD 1928 TYPE AND LOWER LIMIT ALL CONTROL NUHSER OF TOTAL NUMBER OF INDICATOR LOCATIONS LQC 4IIOU-)(IIU ULGUESI-4UUU4L-()E4hl---- L OCAT IONS NONROUT INE OF ANALYSIS OETECTIONa HEAN (F)b NAHE MEAN (F)'b HEAN (Fh REPORTED PEREORUED CLLOl RIUGEb QISI4UCE-4UQ OIRECIIOU RAUGEb =848GE- UE4SOREUEBIS GROSS BETA 0 '50 Ot90( )04/ 104) COURTLANDs AL 1t21( 11/ 11) 2 ~ 83( 2&/ 24) 12B 0tl2~ 0 F 06 10 ~ 5 MILES WSW Ot29 Qt90 Otl2~ t7t94

a. Nominal Lower Limit of Detection (LLD) as described in Table 2.
b. Mean and range based upon detectable measurements only. Praction of detectable measurements of specified locations is indicated in parentheses (P).

TABLE 8 RADIOACTIVITY IN CHARCOAL Fl(.TERS PC I/M(3) >> 0 '37 BQ/M(3)

NAME OF FACILITY RROUBS EERRY OOCKET NO BUs19-"SmRER----------

LOCATION 3F FACILITY LIUESZOUE 4L4R4U4 REPORTING PERIOQ 1928 TYPE ANO LOMER L IMIT ALL CONTROL NUMBER OF TOTAL NUMBER OF ANALYSIS OF DETECTION a INDICATOR LOCATIONS MEAN (F)u LQC4IIQU 'dl>U UIGUESZ 4UUL)4L UE48 NAHE HEAN (F)

<- (;OCATIONS HEAN (F)b NONROUTINE REPORTEO b

PEREQRUEQ LLLQl RAUGE b QISI4UCE 4QQ QIRECIIQU RAUGE RAUGE- UE4SPREUEUIS IODINE IN AIR 0g 010 Og02( 222/ 465) LH3 BF NORTHEAST 0 '2( 23/ 52) Oq02( 46/ 104) 569 Oo01 0 F 08 lgO NILE NE 0)0$ 0 '7 OpOI- Oq05

a. Nominal Lover Limit of Detection (LLD) as described in Table 2.
b. Mean and range based upon detectable measurements only. Praction of detectable measurements of specified locations is indicated in parentheses (P).

19 Terrestrial Monitorin Milk Milk is collected from at least four of five farms within a 10-mile radius of the plant (see figure 3), and from at least one of four control farms. Raw milk is analyzed weekly for I, and monthly for gamma-emitting isotopes and for radiostrontium. The average results for each farm are shown in table 9.

The operator of the farm located approximately four miles north of the plant went out of the dairy business and sold all his milk-producing animals in May 1978. A dairy farm located approximately five miles north of the plant was added to the monitoring program in the same month.

In addition to the regularly scheduled milk samples, eight special samples were taken at the expected time of arrival of fallout from an atmos-pheric nuclear weapons test. These data are presented in table 10.

Cow censuses were conducted in May and September 1978. It was determined that there are no dairy farms nearer the plant than the nearest farm being sampled.

Ve etation So that any relationship between fallout on pastureland and the presence of radionuclides in milk might be seen, pasturage i's sampled quar-terly at the farms from which milk is collected and analyzed for gamma-e'mitting radionuclides. Table 11 gives the results obtained from the laboratory analyses of these samples.

Soil Soil samples are collected annually near each monitoring station to provide an indication of a long-term buildup of radioactivity in the environment. These samples are analyzed for gamma-emitting radionuclides and strontium-89 and 90. The results are given in table 12.

Ground Water An automatic sequential-type sampling device has been installed on, a well down-gradient from Browns Ferry Nuclear Plant. A composite sam-,

ple from this well is analyzed for gamma-emitting radionuclides monthly and composited quarterly for determination of tritium'. A grab sample is also taken from a 'control well up-gradient from the plant. The results of the analysis of well water are shown in table 13.

Public Water Potable water supplies taken from the Tennessee River in the vicinity of Browns Ferry Nuclear Plant are sampled and analyzed for gross

20 beta and gamma-emitting radionculides, and composited quarterly for tritium, 89 Sr, and 90 Sr analyses. The first potable water supply downstream from the plant is equipped with an automatic sampler with composite samples collected weekly. Two additional supplies downstream and one public water supply upstream are collected by monthly grab sampling. Table 14 indicates the results from the analysis of potable, water samples. The maximum beta con-is 0.48 percent MPC. 'entration Environmental Gamma Radiation Levels Thermoluminescent dosimeters (TLD's) are placed at nine stations around the plant near the site boundary and at the perimeter and remote air monitors to determine the gamma exposure rates at these locations. 'The TLD's are changed every 3 months. The quarterly gamma radiation levels determined from these TLD's are given in table 15.

Poultr and Food Cro s Food crops, grains, and poultry raised in the vicinity of Browns Ferry Nuclear Plant and at control locations are sampled as they become available during the growing season, and analyzed for gamma-emitting radio-nuclides. During this sampling period samples of tomatoes, potatoes, green beans, lettuce, turnip greens, soy beans, and poultry were collected and analyzed for specific gamma-emitting radionuclides. The results are given in tables 16, 17, and 18. No sample of lettuce or soybeans was taken from a control location.

TABLE 9 RADIOACTIVITY IN MILK PCI/L - 0 ~ 037 BQ/I NAME OF FACILITY $ RP1(BS-EERRY DOCKET NO+~RUsZQnSm8ER-= --- -~~

LOCATION OF FACILITY LISESXOUE ALABAIIA REPORTING PERIOD 1918 TYPE AND LOWER LIMIT ALL CONTROL NUHBER OF TOTAL NUMBER OF INDICATOR LOCATIONS LQCAXIOU-)(IZH UZGhlESX 4((blVAL I)EAU LCCATIONS NONRQU71NE OF ANALYSIS DETECT I ONa MEAN (F)b NAME HEAN (f ) b HEAN (F) b REPORTED BEREQRIIEP L,LLDl RAUGEb DLSXAUCE AUD DIRECXXQII RNGE RANGE IIEAS()REIIEIIXS .

GAHHA (NAI) 103 CS-137 10e000 lle38( 8/ 59) LOONEY FARM 11 ~ 89( 4/ 12) 11~22( 9/ 44) 10 '4- 12e74 5,75 MILES ENE 10>93- 12,74 10y33>> 13 '8 K 40 150 F 000 1253e68( 59/ 59) BROOKS FARM 1283i56( 12/ 12) 1248~50( 4A/ 44) 1082e35~1390e93 7eO MILES NNW 1197g08~ 1349e47 1059e47~1426e29

'00 le81( 13/ 245) BITTING FARH 3,34( 3/ 7/ 191)

IODINE IN MILK SR 89 436 0

10 e 000 Oe51~ F 04 59 VALUES CLLD 4~5 MILES ENE 0 '0>> 6 '4 51) 3y06(

Og57>> Bp86 44 VALUES <LLD 103 ANALYSIS PERFORHED SR 90 2,000 F 85( 56/ 59) BROOKS FARH 5g72( 12/ 12) 4r92( 3A/ 44) 103 2 22 9 '6 7 ' Hl(.ES NNW 3<92 7,25 2t 11~ 10 ~ 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 measurements of specified locations is indicated in parentheses (F) ~

hJ

TABLE RADIOACTIVITY IN SPECIAL HICK PCI/L " Os037 BQ/L NAME OF FACILITY BROW)IS EERRY DOCKET NOs~RBsZQnknSE2-=--

LOCATION OF FACILITY LIUESIOHE 4L48484 REPORTING PERIOD'IQZ8 TYPE AND LO'HER LIHIT ALL CONTROL NUMBER OF TOTAL NUMBER OF INDICATOR LOCATIONS LQCAIIQH-)III'IGUESZ 4UBU4L 8E48 VOCATIONS NONROVTINE OF ANALYSIS DETECTIDN a MEAN IF) o NAME HEAN {F)g MEAN (()b REPORTED PEREQRDEQ CLLO1 RANGE b OISIAUCE 4)IO QIRECXIQU-- RAIIQE ---. RANGE-- IIE4SQREHEBZS GAHMA (NAI) 8 BA-140s LA~ 140 15 F 000 22 43( 1/ 5) BROOKS FARM 22 l,6s92C 1/

22s43~ 22s43 7s0 NILCS NNM 22t43~ 22s43 16 92 16 ~ 92 CS-137 10s000 12 '4( 1/ 5) BROOKS FARM Ts0 HILES 12t74(

12,74-1/

12,74

1) VALVES (LLO 12s74~ 12s74 NNW K~40 150s000 1252 '0( 5/ 5) BROOKS FARM 1447)92< 1/ 1) .>$ 0lt39) 3/ 3) 109%s70~1447s92 7sO,N?LES NNN 1447 s 92-1447 s 92 1098a81~141%s 85 IODINE IN HILK Os500 15 '8( 5/ 5) BITTING FARM 53sBT( 1/ 1) iStyO( a/ Bf 8 Isf4~ 53s87 4 ~ 5 NILES ENE Sa,87- 53,87 Srt2 29> IR
a. Nominal Lover Limit of Detection (LLD) as described in Table 2.
b. Mean and range based upon detectable measurements only. Praction of detectable measurements of specified locations is indicated in parentheses (P).

TABLE 11 RADIOACTIVITY IN VEGETATION PC I/GM - n 037 BQ/GH (ORY )(EIGHT)

I'TAHE OF FACILITY 880)(NS EEEEY LOCATION t)F FACILITY LIJESL'OIIE 4L484I)4 - -----------

DOCKET NO<< BUsZQa3=882-REPORTING PERIOD 1928 TYPE AND LOMER L !HIT ALL CONTROL NUMBER OF TOTAL NUMBER OF INDICATOR LOCATIONS Lt}C4XZOLI eZZM VLGIIESZ 4(I((u4L t)EAII LOCATIONS NONROUTINE b

OF ANALYSIS BEEEQB(IEQ DETECT IONa LLLOl i'lEAN 84NGE tf) NAME OiSZAUCE 48O OZBEGZra((

HEAN 84((GE (F) b MEAN BA(IGE (F)b REPORTED HE4SPREBEBZS GAMMA (NAI) 19 CE-14Le 144 0.550 2e08( 5/ 11) THRASHER FARM 3169(

'9 1/ 2) 4 '7( 4/ 8)

BA-140eLA>>L40 0 ~ 680 0<<84>>

1s12(

3eb9 5/ ll) 7 ~ 0 MILES ENE THRASHER FARH 3

Lq65(

3,69 1/ 2) 0 86>> 8 '3 VALUES <LLD CO-60 oe170 oe75 Oe35(

1 '5 1/ 11) 7eo HILES BROOKS ENE FARM L)65-0 ~ 35(

leb5 1/ 3) oe19( 1/ 8)

O,35- 0<<35 7,0 HILES NN)I 0)35 0,35 Oe 19>> 0 ~ 19 RU- 103e 106 ne650 1 ~ 67t 2/ 2)44( L/ 3) Le52( 3/ 8)

CS-137 0 ~ 200 0<<90" os32t 2

2/

'4 11) 11)

BROOKS FARM 7,0 HILES BROOKS FARM NNIe 2<44-oe32(

2,44 2/ 3) 0)93 oqZL(

2e40 2/ 8) os 21 0 43 7 ' MILES NN'ee oe21- oe43 0 ~ 20>> 0 ~ 21 4/ ll

~

ZR-95iNB"95 -

0 ~ 200 oe45( ) BITTING FARH 0,68( 1/ 2) 3e4L( 4/ 8)

Oe26 o.e8 4~5 MILES ENE 0)68 O,68 Ot23 bs96 K-40 2,500 27e56( 11/ 1L) LOONEY FARM 38 F 00( 2/ 2) Lbgoo( 8/ 8)

Htl 54 0 200 Bs07>>

0 ~ 36(

45 ~ 47 1/ 11) 5s75 HILES ENE 30;54-0>36(

45e47 1/ 3) 5)L7, oe25(

30 '2 BROOKS FARM 1/ 8) oe36" 0 ~ 36 7 ' MILES NN)I O,36- oe36 oe25>> 0 ~ 25 I-131 0,350 os49( 3/ 1L] BITTING FARH O,el( 1/ 2) 8 VALUES <LI.O 0<<4L Oebl 4 ~ 5 MILES ENE ojbl- o,bl

'2( 2/

ll1/ 87 11)

BE-7 NOT ESTAB 4 THRASHER FARM 6~83( 2) 7e54( 8/ 8)

GAHHA (GELI) 0 ~ 87-L

~ 7eo MILES ENE 1<<79>> 1 1 e 87 1 ~ 41>> 19 '9 17 CE-141 0 F 200 oe67( 4/ '9) SITTING FARH l,oot 1/ 2) 0 ~ 34( 3/ 8) oe44>> 1 00 4e5 HILES ENE L>00- 1 00 Oe22>> 0 ~ 42 CE-144 Oi220 Zs34(

oe25>>

8/

4

~

'3 9) HARGROVE FARM 3,75 HII.ES N 3 '7(

3i97 1/

3

~

'7 1) Lg64(

0)39>>

5/

3e22 8)

BA-140 0 '40 9 VALUES <LLD 0 F 45( 1/ 8) og45>> o,45 LA-140 O.OBO 9 VALUES <LLD 0)47( 3/ 8)

Oe32 Oe73 RU-103 0 ~ 200 0e36( 3/ 9) 8ITTING FARM 0(48( 1/ 2) 0 ~ 32( 2/ 8) oe23 oe48 4<<5 MILES ENE os48 0,48 0 ~ 21 oe43 RU-106 0,510 le05( 1/ 9) HARGRRVE I'ARH L)05( 1/ 1) 8 VALUES <I,LD le05- le05 3e75 MILES N leOS- Le05 CS-137 0 ~ 060 oe19( 7/ 9) LOONEY FARH 0)38( 1/ 2) Oe22( 5/ 8) os07>> os38 5e75 HILES ENE 0<38- oe38 0)LO =

o,42 ZR-95 Oe 1 10 Le35( 4/ 9) 8 ITTING FARM 1 F 83( 1/ 2) Oi50( 3/ 8) os9Le Le83 ee5 MILES ENE L)83- le83 0>Le- t).93 NB-95 0 ~ 050 2 '6(

oe49>>

5/ 9) LOONEY FARM 5e75 HILES 3)3L( 1/ 2) 0)72( 4/ 8) 3e31 ENE 3)3L 3e3L Oe 13>> 2~ I6 CO-58 Oe050 oed7( 1/ 9) HARGROVE FARH 0)07( 1/ 1) 8 VALUES <I.I.D 0 ~ 07 0 ~ 07 3e75 HIt.ES N 0(07>> oe07 K-40 - NOT ESTAB 15 ~ 34( . 9/ 9) HARGROVE FARM Zl) 72( 1/ 1) 17y32( 8/ 8) 3e32" 29ell 3e75 MILES N ZL)72~ 2L e72 9)50>> 32eol

a. Nominal Lower Limit of Detection (LLD) as described in Table 2.
b. Mean and range based upon detectable measurements only. Practlon of detectable measurements of specified locations is indicated in parentheses (P).

TABLE 11. (CQNTD)

RADIOACTIVITY IN VEGETATION PCI/GH - Oe037 BQ/GH (ORY HEIGHT)

NAME QF FACILITY BBQBIIS EEBBY DOCKET NO BIIm28"SmBEZ LOCATION OF FACILITY L'XMESZOIIE e)LABAIIA = REPORTING PERIOD lQZB TYPE ANO LO)(ER LIMIT ALL CONTROL NUHBER OF TOTAL NUMBER OF INOICATOR LOCATIONS L(}CaZZOd VZZU err)IESZ auUUaL ()EAU LOCATIONS NONROUT INE OF ANALYSIS OETECTIONa MEAN (F)b NAHE HEAN (IF ) b HEAN (F)b REPORTED BEBEGKUEO CLLO1 BaUGE OISIAbCE DUO OJBECI108 BA((GE Ba(IGLd'e29(

IIE()sueEIIEIIZS 1-131 Os090 9 VALUES <LLD 3/ 8)

Oe19 0 F 47 BI-214 0 ~ 100 Oe23( 6/ 9) BITT ING FARH Oe45( 1/ 2) Oe24( 7/ 8)

PB-214 NOT ESTAB Oel4~

0 20(

0 '5 5/ 9) 4 ~ 5 MILES ENE LOONEY FARM Oj45 0)23(

0,45 2/ 2) 0 ~ 12 0,23(

0 ~ 55 6/

Oel5 Oe26 5 '5 HILES ENE Oe20 0,26 0 '3 0 5/

'6 8) 8-212 NOT ESTAB 4/ 9) LOONEY FARM 0)15( 2/ 2) Oe'32(

0 '0 P Oe 1? (

Oe08~ 0 16

~ 5,75 HILES ENE Op ),5~ Oel6 Oe16 RA-226 NOT ESTAB Oe23( 6/ 9) SITTING FARH 0,45( 1/ 2) Og24( 7/ 8) 0 '5 Os 14 Oe45 4e5 HILES ENE 0)45- 0,45 Oel2-BE-7 NOT ESTAB 9e72( 9/ 9) HARGROVE FARH 16t34( 1/ 1) 4,20( 8/ 8)

TL-208 NOT ESTAB 2s15~

9 22 '9 VALUES <LLO 3 ~ 75 HILES N 16,34 16 ~ 34 le21 Oe14(

10 F 44 5/ 8) 0') 05~ 0 ~ 21 AC"228 NOT ESTAB Oe32( 1/ 9) BITTING FARH Ot32( 1/ 2) 0 '4( 3/

'9 8) 0 ~ 32 0 ~ 32 ee5 HILES ENE 0 '2~ 0 '? 0 '5 0

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) ~

TABLE 12 RADIOACTIVITY IN SOIL PCI/GH - 0<<037 BQ/GH {ORY WEIGHT)

NAME OF FAC I(. ITY ()BOMBS EEB&Y DOCKET NQ<<~BI(sZQcR"BE2 LQCATIe)N OF FACILITY LI((ESIOUE 4LA&ABA - REPORTING PERIOD-IQZB TYPE AND LOWER LIMIT ALL CONTROL NUHBER OF TOTAL NUMBER QF INDICATOR LOCATIONS LOCAXIOU-WIZL(-UIGUESI NUUOL ()EAU LOCATIONS NQNRQUTINE OF ANALYSIS DETFCT ION a HEAN (F)b MEAN (()b HEAN {F)b ,

REPORTED

- BhJGEb QISIa()CE a((Q QIBECZIO(I BaOGEb )IEASUBEIIEBZS BEBEO&HEO ILLQ1 &a((GE GAHHA (GELI) 1'1 CE 141 NQT ESTAB 9 VALUcS <LLD 0 '7(

0<<07 1/

0 F 07 2)

CE-144 0,060 0<<20( 1/ 9) LH2 BF NORTH 0<<20( 1/ 1) 0 ~ 16( 1/ 2) 0<<20~ 0<<20 0<<9 NILE NNE 0,20- 0<<20 0<<16 0 ~ 16 CS-137 0<<020 0<<38( 9/ 9) LH$ BF DAVIS F 0 '4( L/ 1) Oq48( 2/ 2)

K-40 NQT ESTAB 0<<07~

5<<18(-

0<<94 9/ 9) 2' HILES MSM LH4 BF TRAILER P 0>94 6 F 80(

0 1/

'4 1)

Oe38 4g53{

Os58 2/ 2) 3<<38- 6 F 80 1<<7 HILES NNW bj80e 6,80 4<<38m 4 '8 81~214 0<<020 0 '7(

0<<64~

9/

1<<27

9) LHL BF NORTHWEST l<<0 HILE N L>27{

.1 y27 1/

L<<27

1) 0 F 88{

0<<73~

2/

1<<02 2)

BI 212 0<< 100 0<<74( 9/ 9) LHL BF NORTHWEST 1<<09( L/ 1) 0955( 2/ 2) 0<<51 1<<09 1,0 HILE N Lt09~ 1,09 0)44 0<<67 PB 214 NQT ESTAB 1e03( 9/ 9) LHL BF NORTHWEST L)33{ 1/ 1) Oj90( 2/ 2) 0<<70" 1<<33 1<<0 NILE N L)33 1<<33 0)74 l<<06 PB-212 NQT ESTAB 1<<05( 9/ 9) DECATUR'L 1 ~ 36( 1/ I) F 04( 2/ 2) 0<<54- 1,36 Be2 HILCS SSE ))36e 1<<36 0)94~ L<<L4 RA 226 NQT ESTAB 0 '7( 9/ 9) LHL BF NORTHWEST 1<<27( 1/ 1) 0<<88( 2/ 2) 0<<64 1<<27 1<<0 HILE N ), )27~ 1<<27 0<<73 l<<02 RA-223 NQT ESTAB 0 '2( 6/ 9) LHL BF NQRTHMEST 0<<48( 1/ 1) 0<<31( 2/ 2) 0 20+ 0<<48 1 ~0 HILE N Oi48- 0 F 48 0<<23~ 0 F 40 0 '9{

F TL-208 0<<020 8/ 9) LHl BF NORTHWEST 0<<51{ 1/ 1) 0<<32( 2/ 2)

TE 132 NQT ESTAB 0 '3m 0 '6(

0<<51 1/ 9) 1 ~ '0 LH5 HILE N BF DAVIS F 0)51 0)26(

0,51 1/ 1) 0<<26 0 '7 2 VALUES <LI.D AC-228 0<<060 0.26-1<<?3(

0 9/

'6 9) 2~5 LHL Hl(.ES WSM BF NORTHWEST 0<<26 1 jb7(

0,26 1/ 1) 0<<95( 2/ 2)

PA-228 NQT ESTAB 0.67-0<<()4(

1 4/

'7 9) 1<<O LHL HILE N BF NQRTHMEST L)67 0<<08{

)<<67 1/ 1) 0 ~ 78 0 F 04{

1<<13 1/ 2)

-'SR 89 1 ~ 500 0<<02" 0<<08 9 VALUES <LLD 1 ~ 0 MlLE N Oi08~ 0<<08 0<<04 '

.2

'4 VALUES <LLD 11 ANALYSIS PERFQRHED 90 0 '00 0 '5( 3/ '9) LH1 BF NORTHWEST 0)37( 1/ 1) 0<<36{ 1/ 2)

SR 11 0<<31- 0 '7 leO NILE Ot37 0 ~ 37- 0<<36 0<<36

a. Nominal Lover 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 (P).

TABLE 13 RADIOACTIVITY IN HELL wATER PCI/L - 0 '37 80/L NAME OF FACILITY RRQ)(US EERRY DOCKET NOa RII=ZR"RmRE2 LOCATION OF FAC IL I TY LI5ESZOME ALARM()A REPORTING PERIODI928 TYPE AND LOHER LIMIT ALL CONTROL NUNBER OF TOTAL /(UMBER OF INDICATOR LOCATIONS LQCAZIQU )III'IIGUESZ 05)IVAL )5EaH LOCATIONS NONROUT INE OF ANALYSIS DETECTION a MEAN (Fb) o NAME MEAN (F)b MEAN (Fjb REPORTED PEREQRI)EQ LLLQ1 RANGE QISZAUCE AUQ QIRECZIQII RAIIGE b RABGEb IIEASUREIIEIIZS GAS<A (NAI) 23 BA 140'A>>140 15,000 18 '4( 1/ 12) BFNP HELL ¹6 18 '4( 1/ 12) 11 VALUES <LLD IR-95iNB-95 10o000 18s34 18e34 1/

0 '2 MILES H HELL ¹6 18!34 18e34 10e44( 12) BFNP 10)44( 1/ 12) 11 VALUES <LLD 10o44>> IOo44 0,02 MILES H 10)44>> 10g44 GAMMA (GELI) 1 K 40 NOT ESTAB 55)60( 1/ 1) 55,60- 55,60 TRITIUH 330 F 000. 4 VALUES <LLO 426 F 00( 1/ 5) 426,00- 426,00

a. Nominal Lover Limit of Detection (LLD) as described in Table 2.
b. Mean and range based upon detectable'easurements only. practica of detectable measurements of specified locations is indicated in parentheses (p).

TABLE 14 RAD!OACTIVITY IN PUBLIC WATER SUPPLY PC I/l, Oe037 BQ/L FACILITY BRUTUS NAHE OF LOCATION OF FACILITY LIUESIOUE EERRY 4L484U4 DOCKET hO ~ RU ZQ B=BE2 REPORT lhG PERIOD 192'}

TYPE AND LOWER LIHIT ALL CONTROL NUHBER OF TOTAL NUHBER OF IND ICATOR LOCAT IONS LOC4XI()U UIIU UIGUESI 4UUU4L ()E4U~ LOCATIONS NONROUT INE HEAN (()b (f) (f ) b OF ANALYS I 5 QEBEORUEQ GROSS BETA DETECTIONa iLLO1 2,300 4s22(

BAUGE 68/ 76)

NAHE OISI4UCE-4QQ QIBEGIIOU CHAHPION PAPER 4 HEAN

'4(-B4U{iE ---

49/ 52)

HEAN

-$ 4UGE-2e98( 7/ 12)

REPORTED UE4S()REUEUXS 88 2e55~ 14e51 TRH 282 F 6 2s55~ 14e51 2t40~ 3 '8 GAHHA (NAI) 84 72 VALUES <LLD 12 VALUES <LLD ANALYSIS PERFORHED GAHHA (GEL I) 4 K-40 NOT ESTAB 73e22( 2/ 4) CHAHPION PAPER 73)22( 2/ 3)81-214 NOT ESTAB 52s30~

22s96(

94e 14 3/ 4)

TRH 282 '

SHEFFIELD>AL ROB 52,30-31 ~ 99 (

94 '4 1/ 1) 9e52 31e99 TRH 254e3 31 ~ 99 31 '9 PB-214 NOT ESTAB 21 ~ 98( 2/ s) CHAHPION PAPER 30 ~ 15 ( 1/ 3) 13e80- 30e15 TRH-282e6 30 ~ 15~ 30s 15 PB-212 NOT ESTAB 6e77( 1/ 4) CHAHPION PAPER 6q77( 1/ 3)

SR 89 10 ~ 000 6'e77~

10e41(

6 '7 1/ 12)

TRH 282e6 CHAHPION PAPER F 77

10) 41(

6,77 1/ 4) VALUES <LLD 10,4 I>> 10 s 41 TRH 282e6 10e41>> 10,41 SR 90 F 000 12,VALUES <LLD 4 VALUES <LLD 16 ANALYSIS PERFORHED TR IT IUH 330 F 000 457e00( 4/ 12) WHEELER DAHr AL sB F 00( 1/ 4) 474g00( 2/ 4) 16 415e00~ 484 ~ 00 TRH 274 ' 484e00>> 484 F 00 472e00~ 476 F 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 (P).

28 Table 15 4

ENVIRONMENTAL GAMMA RADIATION LEVELS Environmental Gamma uarter Location I ~l Radiation Levels January-March 1978 On-Site (9)*

Maximum 0.011 23.5 Minimum 0.005 11.8 Average** 0.009 + 0.003 18.9 + 7.0 Off-Site (6)

Maximum 0.012 26.5 Minimum 0 '06 13.5 Average 0.008 + 0.005 17.6 + 10.4 April-June 1978 On-Site (9)

Maximum 0. 011 24. 2 Minimum 0.005 11.0 Average 0.008 + 0.004 17.6 + 9.4 Off-Site (4)

Maximum 0.012 25.4 Minimum 0.005 11.0 Average 0.008 + 0.006 17.0 + 13.0 July-September 1978 On-Site (8)

Maximum 0.010 21. 7 Minimum 0.004 9.7 Average 0.008 + 0.004 18.0 + 7.8 Off-Site (6)

Maximum 0.011 23.9 Minimum 0.006 12.5 Average 0..008 + 0.004 17.5 + 8.2 October 1978 On-Site (8)

January 1979 Maximum 0.009 20.8 Minimum 0.006 12.5 Average 0.009 + 0.003 16.6 + 6.2 Off-Site (6)

Maximum 0.010 22. 8 Minimum 0.006 12. 8 Average 0.008 + 0.003 16.7 + 7.6

  • Number of stations (normally three TLD's at each station)
    • Allaverages reported +2a

TABLE 16 RADIOACTIVITY IN FOOD CROPS PCI/KGH - 0 '37 BO/KGH (WET WEIGHT)

NAME OF FAC IL ITY BBQ'HhlS EE&BY DOCKET NOa RUsZQ SmBEZ LOCATION OF FACILITY LIHESEOUE OLaaa)IA REPORTING'PERIOD IiZB Lps(ER L I HI T ALL CONTROL NUHBER OF TYPE AND OF INDICATOR LOCATIONS LOCAZIOV )(ZZ)I VIOL)ESZ ()(IIIUAL ()Eau LOCATIONS NONROUTINE TOTAL >>uHBER DETECTION MEAN (F) NAME MEAN (F) MEAN (F) REPORTED OF ANALYSIS CLLQ1 RhhIGE QISIkhCE 480 DIBECIIQQ BADGE BAUGE IIEDSUBE)IEIIIS BEBEOR5EO C llew RADIOACTIVITY lN CORN

( GAHHA (GEL I )

2 K 40 iVOT ESTAB 1668s00( .1/ 1) LH5 BF DAVIS F 1668e00( 1/ 1) 2475)00( 1/ 1) 1668s00 1668s00 2s5 MILES WSW 1668j00~1668 ~ 00 2475e00~2475 F 00 BI 214 NOT cSTAB lle$ 8( 1/ 1) LH5 BF DAVIS F 38( 1/ 1) VALVES (LLD

'8 1

Ils38~ 11 ~ 38 2s5 MILES WSW 11)38>> 11 RADlPACTlVITY IN GREEN BEANS, GAHHA (NAI)

K-40 150 ~ 000 1583 ~ 38( 1/ 1) LH5 BF DAVIS F 1583 '8( 1/ 1) 1583e38~1583e38 2e5 MILES WSW 1583s38 1583 '8 GAHHA (GELI) 1 K-40 NOT ESTAB 1428e00( 1/ 1) 1428)00 1428e00 RADIOACTlVlTY lN LETTUCE,

( GAHMA (GELI) 1 K 40 NOT ESTAB 2820 F 00( 1/ 1) 2 HILES N 2820)00( 1/ 1) 2820s00~2820s00 2820/00~2820 F 00 BI 214 NOT ESTAB 22e21( 1/ 1) 2 MILES N 22)21( 1/ 1) 22 '1- 22 '1 22)21

'3(

22 ~ 21 1/

BE 7 NOT ESTAB 28e93( 1/ 1) 2 HILES N 28 1) 28e93 28e93 28193 28 '3 RAD10ACTIVITY 'IN POTATOES GAMHA (NAI)

CS 137 10 F 000 14 07( 1/ 1) LH5 BF DAVIS F 14s07( 1/ 1) 14 '7o 14e07 2,5 HILFS WSW 14j07- )4e07 K 40 150,000 2572 67( 1/ 1) LM5 BF DAVIS F 2572,67( 1/ 1) 2572sb> 2572sb7 2 ~ 5 HILES WSW 2572 '7~2572e67 hD GAHHA (GELI) 1 K 40 NOT ESTAB 2437,00<,

2437)DO 2437,00 ag Hominal lever 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).

TABLE 16 (CONTD)

RADIOACTIVITX IN FOOD CROPS PCI/KGM - De037 BQ/KGH (){ET WEIGHT)

NAHE OF FACI{.ITY'RRQ1{US EERRY DOCKET NO ~ RUn19"RmRER- ---:---

LOCATION OF FACILITY LIUESIOUE 4L48454 REPORTING PERIOD 1928 TYPE AND LONER LIMIT ALL CONTROL NUMBER OF TOTAL NUMBER OF 1VDICATOR LOCATIONS LQC4IIQU-MIIU UIGUESI AUUUAL UEAU- LQCAT ID'ONROUTINE OF ANALYSIS DETECTION MEAN (F) b NAHE HEAN {F)b MEAN (F) REPORTED OEREORUEQ LLLOl 'ROUGE QISIAUCE AUQ OLRECIIQU SLUGS. a UE4SVREUEUIS RAUGd'ADIQAC7 I VITV IN TOMATOES GAHHA {GELI)

K 40 "'{IUT"E'STAB'"' N35e00( 1/ 1) LH5 BF DAVIS F 3035 ~ 00( I/ 1) 2308 ~ 00{ 1/. 1)

{ 3035 F 00 3035e00 2e5 HILES ){Sl{ 3035e00 3035e00 2308 '0~2308 F 00 RADIOACTIVITY IN TURNIP GREENS GAHMA (GELI) 2 CE-144 33e000 34 '54( 1/ 1) 2 Hl{.ES N 34t54{ 1/ 1) 1 VALUES <LLD 34i54 34i54 34)54 34i54 CS-137 5e000 1 VALUES <LLD 13e40'{ 1/ . 1) 13e40 13e40 K 40 NOT ESTAB 2979e00( 1/ 1) 2 MI{.ES N 2979 F 00( 1/ 1) 2057e00( , 1/ 1) 2979e00~2979e00 2979>00 2979e00 .2057 F 00-2057 F 00 81-214 9ed4( 1/ 1) 2 MILES N 9ed'e( 1/ 1) 14 ~ 77( 1/ 1)

NOT. ESTAB 9e04 9e04 9e04" 9e04 14)77~

12e90(

14 '7 1/ 1) 12 '0 PB 214 NOT ESTAB 1 VA{.UES <LLD 12e90~

PB-212 NOT ESTAB 1 VALUES <LLD 12e98( 1/ 1) 12e98 12e98 BE 7 NOT ESTAB 229 '0(

229e70~ 229e70 1/ 1) 229>70(

229)70 229 1/

'0 1) 1 VALUES <LLD

a. Nominal Lower L{mit 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 pareritheses (P).

TABLE 17 RADIOACTIVITY IN SOYBEANS PCI/GH - 0 ~ 037 BQ/GH (DRY 'HEIGHT)

NAME OF FACILITY RRQUQS EERRY DOCKET NO ~ RUsZQ jlmRE2---

LOCATION QF FACILITY LIUESXO((E 4LARAUA REPORTING PERIOD 1918'YPE AND LONER L I M I T ALL CONTROL NUHBER OF TOTAL NUMBER OF liVDICATOR LOCATIONS LQCAXIQu-UIXU UIGUESX 4UUVAL ()EAU LCCAT10iVS NONROUT INE OF ANALYSIS DETECT ION a HEAN (F) NAHE HEAN (F)b HEAN (F)b REPORTED REREORUEQ CLLD1 RAUGE QISXAUCE 48Q QIRECXIQU RAUGE RAUGE UEASUREUEUXS--

GAMMA (GELI) 1 K-40 NOT ESTAB 16 ~ 39( 1/ 1) 4 HILES N lbe39( 1/ 1)81-214 NOT ESTAB 16 '9 Oe03(

lbe39 1/ HILES 16 '9 lbe39

1) N 0e03( 1/ 1)

Oe03 0 ~ 03 0903 Oe 03 PB-214 NOT ESTAB Oe05( 1/ 1) 4 HILES N 0q05( 1/ 1)

Oe05 Oe05 0)05- 0 '5

a. Nominal Lover 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).

TABLE 18 RADIOACTIVITY IN POULTRY PCI/KGH - Oe037 BQ/KGH (WET WEiGHT)

NAME OF FAC ILITY BBOWUS EEBBY DOCKET NOa BUmZQ"SmSEZ LOCATION OF FACILITY LIUESZOUE BLABAUa . REPORTING PERIOD 1975 TYPE AND LOWER LIMIT ALL CONTROL NUHBER OF TOTAL NUMBER OF INDICATOR LOCATIONS LOCarIOU WIZU UIGUESZ aUUMAL UEaU LCCAT IONS NONROUT INE IF)b (P)b REPORTED OF ANALYSIS 9EBEOBUEQ GAHHA INAI)

DETECTION a CLLOI HEAN NAHE OISIAUCE-AUO OIBECXIOU--

HEAN

-BAUGE b -- MEAN <~)b BAUGE- UEASQBEUEUIS 2

BAUG8'00.000 K-40 1967.00 (

1/ 1) 2 HILES NNW 1967.00 ( 1/ 1) 1857.09 ( 1/ 1)

't967.00-1967.00 1967.00-1967.00 1857.09-1857.09

a. Nominal Lover Limit of Detection (LLD) as described in Table 2.
b. Mean and range based upon detectable measurements only. Practica of detectable measurements of specified locations is indicated in parentheses (p).

'7

33 Reservoir Monitorin Samples are collected from the Tennessee River as detailed in table 19. Samples collected for radiological analysis include plankton from three of these cross sections and bottom fauna and sediment from four cross sections. The locations of these cross sections are shown on the accompanying map (figure 4) and conform to sediment ranges established and surveyed by the Data Services Branch, TVA.

Water Water samples are collected automatically by sequential type sampling devices at three cross sections and composite samples analyzed monthly for gamma-emitting radionuclides. Further composites are made quarterly for strontium and tritium analyses. Sampling locations are shown in table 19. Grab samples were also collected monthly from the vicinity of the plant discharge to the Tennessee River, and at a point on the Elk River. Res'ults are displayed in table 20.

Fish Radiological monitoring for fish is accomplished by analysis of composite samples of adult fish taken from each of three contiguous reser-voirs Wilson, Wheeler, and Guntersville. 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. Two species, white crappie and smallmouth buffalo, are collected representing both commercial and game species. Sufficient fish are collected in each reservoir to yield 250 to 300 grams oven-dry weight for analytical purposes. All samples are collected semiannually and analyzed for gamma-emitting radionuclides. The composite samples contain approximately the same quantity. of flesh from each fish. For each composite a subsample of material is drawn for counting.

Results are given in tables 21, 22, and 23.

Plankton As indicated in table 19, net plankton (all phytoplankton and zooplankton caught with a 100 p mesh net) is collected for radiological analyses at each of three stations by vertical tows with a 1/2-meter net.

At least 50 grams (wet weight) of material is necessary for analytical accuracy. Samples are collected semiannually and analyzed for gross beta activity, and when quantities are sufficient, for gamma activity and Sr and Sr content. During this reporting period, three samples did not contain sufficient material for gross beta analysis. Results are shown in table 24.

34 Sediment Sediment samples are collected from Ponar dredge hauls made for

  • bottom fauna. Gamma radioactivity and Sr and Sr content are determined semiannually in composite samples collected from each of four stations.

Locations of these stations are shown in table 19. A third set of samples was taken in late 1977. The results from the analyses of these samples are included herein. Results are shown in table 25.

Bottom Fauna The flesh and shells of Asiatic clams collected semiannually from the cross sections at four stations (table 19) are analyzed for gamma-emitting radionuclides. Levels of Sr and Sr are determined on the shells, and on the flesh when sufficient amounts were available. A 50-gram (wet weight) sample provides sufficient activity for counting. A third set of samples was taken in late 1977. The results from the analyses of these samples are included herein. Results are given in tables 26 and 27.

Table 19 SAMPLING SCHEDULE RESERVOIR MONITORING Biolo ical sam les (collected semiannuall Zooplankton, chlorophyll, Benthic a Water samples River/river mile h to lankton fauna Sediment Fish, (collected monthl )

Tennessee 277.98 Tennessee 285.2 Tennessee 288.78 Tennessee 291.76 Tennessee 293.5 Tennessee 293.70 (discharge area)

Tennessee 305.0 .

Tennessee 307.52 Elk 20.5

a. Gill net and/or electroshocker will be used for collection. Samples of fish are collected from Guntersville, Wheeler, and Wilson Reservoirs.
b. Automatic sampler.
c. Grab sample.

Figure 4 R ESERVOIR MONITORING NETWORK Elk River WHEELER DAM mile 274.90 mile 277.98 Rogersville 0

mile 29l.76 Athens mile 282.6

~mile 285.2 B.F. NUCLEAR PLANT Il Champion P,aper Co.

ite 288.78 mile 293.50 mile 305.0 Cour tland mile 295.70 Decatur mile 307.52 Scale of Miles

~ - Automatic Sam ler 0

TAB(.E 20 RADIOACTIVITY IN SURFACE iATER TOTAL PCI/L - 0<<037 BQ/L NAHE OF FACILITY RRQnHS EERRY DOCKET NO ~ RI(sZQaR=RE2 LOCATION OF FAC IL ITY LXIIESEOHE CLARA(IA REPORTING PERIOD IQZR TYPE AND LO<<tER LIMIT ALL CONTROL NUHBER OF TOTA(. '<<UMBER OF DETECTION a INDICATOR LOCATIONS (F)

LQCAZIQU '((IEU lilGUESE AUhUAL 5EAb)

(F)

~- LOCAT IONS NONROUTINE

-RAI(<<---

OF ANALYSIS MEAN NAME MEAN HEAN ($ )b REPORTED REREQRi5EQ ILLO1 RAJGEb OISEABCE-hh(Q QIBECXIOII RA((GE IIEI)SUBEIIEIIZS GAHMA (NAI) 58 BA-140'A 140 15e000 19<<85( 1/ 36) 285f2 19<<85( 1/

'5 12)

TRH 22 VALUES <L(.D 19<<85 19<<85 19 '5- 19 GAMMA (GELI) 2 81-214 NOT ESTAB 17 e 51( 1/ 2) 17 )51>> 17 ~ 51 PB-214 NOT ESTAB 12)96( 1/ 2)

SR 89 10e 000 12 VALUES <LLD 12g96e 12 '6 8 VALUES <I.I.D 20 ANALYSIS PERFORMED SR 90 2e000 12 VALUES <LLD 8 VALUES <L(.D 20 ANALYSIS PERFORMED TRITIUM 330 F 000 460 60( 5/ 12) TRH 285 ' 482e50( 2/ 4) 440<<00( 2/ 8) e 20 398 F 00>> 529 F 00 436 F 00 529 F 00 394e00>> 486e00

a. Nominal Lover 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).

TABLE 21 RAOIOACTIVITY IN WHITE CRAPPIE (FLCSH)

PCI/GH 0 037 BQ/GH (ORY WEIGHT)

NAH'E OF FACILITY )BQ)(QS EERRY OQCKET NO ~ BUsllsRsBE2 ---- <<-

LOCATION OF FACILITY L]UESXO()E 4L484U4--- ---------- REPORTING PFRIOO ]QZB TYPE Atto LOKER LIMIT ALL CONTROL NUHBER OF TOTAL NUMBER OF ". - I.")OICATOR LQCAILOU UIIU UIGUESX 4UUV4L D'EAU L'G C AT I ON 5 NQNROVTINE OF ANALYSIS OETECTION LOCATIONS HEAN (g) t(AHE HEAN (F) b HEAN (F)b REPORTED PEREGBUEQ ALLO] .

BhuGE OISIAUCE AUQ OIBECllQU .BAUGE b UE4SOBEUEUI S GAHHA (NAI) 3 CS-137 0 ~ 120 o 15( 1/ 2) WILSON RESERVOIR oe]5( 1/ 1) oi20( 1/ 1)

-,Oa]5 oa]5 2/

TRH ?59~275 ot]5~

\4)e8(

BAUGE'.

og]5 1/

og20~

]3)92(

9 1/

'0 1)

K-40 0,900 ]4g43( 2) WILSON RESERVOIR 1)

- 14>IB 14.eS TRH 259 275 ),4jb8~ 14 ~ 68 ]3g92~ 13 F 9?

I-131 oo200 Os34( 1/ 2) WII,SON RESERVOIR Ot34( 1/ 1) 1 VALUES (LLO

.0 ~ 34 0 ~ 34 TRH 259~275 0]34 0,34 GAMMA (GELI)

-3 CS-137 0 ~ 020 0 ~ IZ( 2/ 2) WILSON RESERVOIR ot]3( 1/ 1) og2] ( 1/ 1)

.00 11 oe]3 TRH 259~275 oq ]3~ og]3 oy2]>> oe2]

K'0 NOT ESTAB' ]5g43( 2/ 2) WHEELER RES 15,9e( 1/ 1) 16 ~ 53( 1/ 1) 14e 89~ 15 ~ 96 TRH 275~349 15)96~ 15 ~ 96 ]eg53-. 16 ~ 53 BI-214 ~ 020 oi()e( 1/ 2) WHEELER RES 0)06( 1/ 1) 1'ALUES <LLO oeoe- oa06 TRH 275&349 o',oe- o,oe PB-214 NOT CSTAB O.d5( 2/ 2) WHEELER RES 0(06( 1/ 1) oy05( 1/ 1) 0)04 os06 TRH 275~349 0)06 oboe oe05 0 F 05 Nominal Lmrer Limit of Detection (LLD) as described in Table 2.

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

TABLE 22 RADIOACTIVITY IN SMALLHOUTH BUFFALO (FLESH)

PCI/GH 0,037 80/GH (DRY WEIGHT)

NAHE OF FACILITY )LRQhUS EEIIRY DOCKET NOs BU-ZQ"RmBE2 LOCATION OF FACILITY LXUESXOUE ALAILAUA REPORTING PERIODIQZII TYPE AND LOWER L te(IT ALL CONTROL NUMBER OF TOTAl. NUMBER OF INDICATOR LOCATIONS LQCAIIQU-UIIU UIGUESI AUUUAL ()EAU~ LOCATIONS NONROUT INE OF ANALYSIS DETECTION a MEAN (F)b NAME MEAN (F) MEAN (F ) b . REPORTED EEEEOIIUEQ CLLQL ttaUGEb QISIAUCEAUQ QIILECEIOU EA((GEb .BAUGEb UEASUILEUEUIS GAMMA (NAI) 3 K 40 0 '00 9 8

'0(

~ 23 2/

10 ~ 17

2) WHEELCR RES TRM 275 349 LOeL7(

LO)17-1/

10e17

1) Be42(

Beh2-1/

8 '2 1)

GAHMA (GEL I) 3 CS-137 0 '20 Oed7( 2/ 2) WHEELER RES Oe08( 1/ 1) Oe13( . 1/ 1) 0005 Oe08 TRM 275>>349 Oe08 Oe08 Oe L3>> Oe13 K 40 NOT ESTAB 12e03( 2/ 2) WHEELER RES 12(41( 1/ 1] 13e36( 1/ 1) 1Le64>> 12e41 TRM 275>>349 L2(4L 12e 4L 13e36 LID 36 81-214 0 '20 Oed6( 1/ 2) WILSON RESERVOIR Oe06( 1/ 1) VALUES (LLD Oe06" .Oe06 TRM 259>>275 0,06- Oe06 PB-214 NOT ESTAB Oeld( 2/ 2) 'WHEELER RES Oe12( 1/ 1) I VALUES (LLD 0 F 07 Oe12 TRM 275>>349 0)]2 de 12 Nominal Lower Limit of Detection (LLD) as described in Table 2.

b. Mean and range based upon detectable measurements only. Erection of detectable measurements of specified locations is indicated in parentheses (P) ~

TABLE 23 RADIOACTIVITY IN St(AL(.HOUTH BUFFALO (WHO(,E)

PCI/GH 0,037 BQ/GH (ORY WEIGHT)

NAt(E OF FACILITYBBQ)fifS EEBBY oQGKET tio BhfslBnknBEZ--- --=---

LOCATiON OF FACILITY L?IIESXQBE 4LABAI(4 REPORTING PERIOD IQZB TYPE ANO LOWER LINIT ALL CONTROL NUHBER OF TOTAL ttUHBER OF INOICATOR LOCATIONS LQC4XIQht-)fIEH-UIGtlESI-458IJ4L f)E4)) L()CAT IONS NONROVT INE OF ANALYSIS OETECTIONa HEAN (F) b NAHE HEAN (F)b HEAN (F )b REPORTED PEBEQBBEQ - LLLD1 B)tUGEb OISI4(ICE-4UD-QIBECIIQ(f-- -BA((Gd'-- b'48GE IIE4SL(BEHEI(IS GAHHA (NAI) 3 K-40 0 '00 bs76( 2/ 2) WHEELER RES 7 '5( 1/. 1) bezb( 1/ 1) 6127>> 7 I 25 TRH 275>>349 7)25- 7 F 25 6,26- (t,zb GAHHA (GELI) 3 CS-137 0,020 Os04( 2/ 2) )(HEELER RES 0e05( 1/ 1) 0%06( 1/ 1) 0)03>> 0 F 05 TRH 275>>349 0(05 0)05 0)06>> t) ~ 06 K-40 NOT ESTAB 7 '0( 2/ 2) )ft(EELER RES 9)21( 1/ 1) bt44( 1/ 1) 6 ~ 60>> 9s21 TRH 275>>349 9tz1- 9ezl bi44>> 6e44 BI 214 0I020 0 F 05( 2/ 2) WHEELER RES 0)06( 1/ 1) Oj05( 1/ 1) 0~05>>

'4(

0 '6 z)

TRH 275>>349 Ot06>> 0 '6 0)05 0,05 PB 214 NOT ESTAB 0 )(HEELER RES Ot04( 1/ 1) Oj04( 1/

Oe04>> Oe04 TRH z75 349 0(04 Og04 0>04 Oy04 PB "212 NOT ESTAB 0 F 03( 2/ 2) )(ILSON BESERVOIR 0)03( 1/ 1) 0,02( 1/ 1) 0 '2>> Oe03 TRM 259>>275 Ot03>> Oq03 Oe02 0902

a. Nominal Lower Limit of Detection (LLD) as described in Table 2.
b. Mean and range based upon detectable measurements only. Eraction of detectable measurements of specified locations is indicated in parent esca

TABLE 24 RADIOACTIVITY IN PLANKTON PCI/GH 0 ~ 037 BQ/GH (DRY HEIGHT)

WAHE OF F AC IL I TY $ RQ'HUS EEEEY DOCKET NOa-RUaZRmhnBEZ----------'L484U4 LOCATION OF FACILITY LIUESEOUE REPORTING PERIOD 192$

TYPE AND LONER LIMIT ALL CONTROL NUMBER OF TOTAL, NUMBER OF INDICATOR LOCATIONS LQC4IIOU UIIU UIGUESI 4UUll4L UEAU LOCAT IONS NOMROUTINE OF ANALYSIS DETECTION a MEAN (F)b NAHE HEAN (F) ~ MEAN (F)b REPORTED REREQBUEQ - CLLQ1 &4UGE b QISI4UCE AUQ QIEEGIIQU E4UGE SAUGE- UE4SQREUEUZS--

GROSS BETA 0 '00 6s84( 2/ 2) TRH 291 76 8 '2( 1/ 1) 5q46( 1/ 1)

GAMMA (GEL I) 3 5 ~ 16~ 8 ~ 52 8 '2 8 '2 5,46-6 4 VALUES (LLD 2 VALVES <LLD ANALYSIS PERFORMED

a. Nominal Lower Limit of Detection (LLD) as described in Table 2.
b. Mean and range based upon detectable measurements only. Praction of detectable measurements of specified locations is indicated in parentheses (P).

TABLE >>

RADIOACTIVITY IN SEDlHENT PCI/GH '>> Oe03T BQ/GH (ORY ltElGKT)

DOCKET NO>> RI(all"Sm8H-NAME OF FACILITYBRQ)(11S EEBRY LOCATION OF FACILITY- LXHESKOt)E ()LABAIIA REPORT ING PERIOD 1928 LOi)ER LIHIT CONTROL NUHBER OF TYPE ANO ALL LOCAZIOB )(IZLI HIGUESI a(IBIIAL OEatl L()CATIONS NONROUT INE TOTAL NUMBER OF INDICATOR LOCATIONS OF ANAI,YSIS DETECT IDNa HEAN (F)o NAHE HEAN (F) > HEAN (F)b REPORTED

- RAJGEb OISIAUCE hHO OIBECZIQI( BAHGE BANGS'- )IEASLIREHEHZS REBEORUED LLLDL GAMMA (GELI)

CE-144 12 0 '60 0 '8(

14>>

5/

0,43

9) TRH 288 '8 Ot36(

Ot28 2/

Oe43

3) 3 VALVES <LI.O Oe CO-60 OeOLO Oe20( 9/ 9) TRH 293 ' Ot33( 3/ 3) 3 VAI.UES <I.LD Oe05" 0080 SFNP DISCHARGE DqO5- Oe80 CS-137 0 '20 1 e92( 9/ 9) TRH 277,98 Zt46(

Ze27>>

3/

Z,e7

3) Oe23(

0 ~ 18 0/

0 ~ 31 3)

OeVZ" 2ee7 NB 95 0 ~ 010 Oe12( 4/ 9) TRH 277e98 Oels( 1/ 3) 3 VALUES <LLO Oe05>> 0 ~ 18 0(LS>> Q~ Ls K 40 NOT ESTAB 15 ~ 13 ( 9/ 9) TRH 288 '8 Lee53(

lee07 3/

17 '7 3) 14ess(

10e88 W/

LTe25 3)

LOe4L LTe74 HN-54 0 ~ QLO Oe()5( 1/ 9) TRH 293e7 0,05( 1/ 3) ~

3 VALUES <LI.D

'20 0 F 05 e49(

0 9/

'5 9)

BFNP DISCHARGE TRH 277 '8 0,05 Ltes(

Oe05 3/ 3) Le5L( 3/ 3) 81 214 0 1 le 04>> le78 l)55- 78 le27>> 1 72 277 '8 1 ~ ~

81-212 OeLOO le39( 9/ 9) TRH Ltel( 3/ 3) Le34( 3/ 3)

Oe94 2e53 Lt07 Ze53 Oe81>> 2el4 PB" 214 NOT ESTAB 1 ~ 57( .9/ 9) TRH 277 '8 L)80( 3/ 3) 1iel( 2( 3)

Oe95>> 1 ~ 9L Lt68" le 91 1,57>> 1,65 PB 212 NOT ESTAB le75( 9/ 9) TRH 277e98 1 ~ 97( 3( 3) ee69( 3/ 3)

L.oe>> Ze19 Le84- 2e19 le34>> Lee50 RA 226 NOT ESTAB Le49( 9( 9) TRH 277e98 Ltbs( 3/ 3) 1 e51( 3/ 3) le04>> le78 Le55 le78 le27>> le7Z 223 NOT ESTAB Oe38( 1/ 9) TRH 293e7 0>SS( 1/ 3 VALUES <LI.D RA 0)38>> 0 9/

'8 9)

BFNP DISCHARGE TRH 277,98 0,58-0 F 70(

0 3/

'8 3) 0157( 3/ 3)

TL-208 Oe020 Oe59(

De33 0 ~ 72 0,'ee>> OeT2 Oe54>> Oe59 AC-228 0 '60 1 ~ 86( 9/ 9) TRH Zssi78 2)07( 3/ 3) Le80( 3/ 3)

I, e26o 2,48 lt76 2,4s Le44>> Ze30 PA 228 NDT ESTAB OeOT( 3/ 9) TRH 277e98 Oe08( 2/ 3) Ot07( 1( 3)

Oe05>> 0 F 08 Dt07>> De08 Oe07c Oe07 SR 89 Le500 3e06( 3/ 9) TRH 288 '8 4t26(

4)26 1/

4 '6 3) 3 VALVES <I.LD 2 ~ Ql 4eZ6 277 '8 12 SR 90 Oe300 0,3e( 1/ 9) TRH 0.3e(

Otse>>

I/

Oe36

3) Oe71(

0 jTL>>

1/

Oe71 3)

LZ Oe36 Oe36

a. Nominal Lower Limit of De'tectiori (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 (P)..

4

TABLE 26 RADIOACTIVITY IN C(.AH FLESH PCI/GH ~ 0 ~ 037 BQ/GH=(ORY HEIGHT)

NAME OF FACILITY RRQHIIS-EERRY DOCKET NO ~ RhlaZR=R=BE2 LGCAT ION OF FAC IL I TY LIMESraIIE IILARA))A REPORTING PERIOD 197R TYPE A lO LOr)ER LIMIT ALL CONTROL NUMBER OF TOTAL NUMBER OF INDICATOR LOCATIONS LQCaEIQH )(IIV VIGUESI 0(III()AL OEaS VQCAT ION~ NONROVTINE OF ANALYSIS DETECT IONa EAN (F) b NAME HEAN (F)b HEAN lF) REPORTED REREQRdEQ CLLOl- = RhMGE OISIAIICE ABO QIRECXIQII Ra(IGE Ra(IGP MEASOREHEHZS GAMHA (GELI)

CS-137 12 Oe080 Oe41( 8/ 9) TRH 277 '8 0 '4( 3/

'2 3) Oe59( 1/

'9 NB 95 Oe070 Os 18-6 ~ 61(

0 1/

'2 9) TRH 288r78 0;28-6,61(

0 1/ 3) 0 '9~ 0 3 VALVES <LLO 6 ~ 61- 6s61 6e61 6 ~ 61 K 40 NOT ESTAB 7e88( 9/ 9) TRH 288 '8 8 08( 3/ 3) '9e04( 3/

'3 3) 8 1-214 NOT ESTAB 4 '3~

0 '0(

9 9/

'9 9) TRH 277 '8 F

6r88 0)97(

9,69 3/ 3) 6e52e Oe90(

13 3/ 3)

Os45" ls34 Oq67- le34 Oj47~ 1,64 PB 214 NOT ESTAB De88( 9/ 9) TRH 277 '8 0(92( 3/ 3) Ir02( 2/ 3)

Os55- le23 9/ 9) 277998 0)58 1e23 3/ 3)

Or65e 1 3/

'9 3)

PB-212 NOT ESTAB 0 ~ 74( TRH Op80( Og89{

Os%9 le 10 Or59~ le 10 Oj44 le 67 TL 208 NOT ESTAB Oe26( 8/ 9) TRH 288e78 0)29( 3/ 3) 0%50( 1/ 3)

Oe12~ 0,31 Or27- 0 ~ 31 0 '0m 0,50 AC-228 NOT ESTAB lsd9( 5/ 9) TRH 293r7 lrbl( 1/ 3) 2r29( 1/ 3)

Os56 le61 BFNP 01SCHARGE 1)61 le 61 2r29 2e29

a. Nominal Lower Limit of Detection (LLD) as described in Table 2.
b. Mean and range based upon detectable measurements only. Praction of detectable measurements of specified locations is indicated in parentheses (P).

TABLE 27 e

  • RADIOACTIVITY IN CLAN SHELL PCI/GN ' ~ 037 BQ/GN (ORY WEIGHT)

~r A NAME OF FACI LITY 8RUI(1IS EERRY OQCKET NO ~ RI(mZQ=RnBE2--- ---

'.lOCATION OF FACII.ITY--LIHESIQDE - --------4L484II4 REPORTING PERIOD 1928 TYPE AND LOWER LIMIT ALL CONTROL NUNSER OF

-TOTAl NUMBER OF. INDICATOR LOCATIONS LOC4IIOH )(IIU UIGUEH 4((blU4L IIE4U LOCATIONS NONROUT INE OF,ANALYSIS DETECTION MEAN (F)b NANE MEAN (F)b MEAN (F) REPORTED

'EREORBEQ ILLQI IIGfb QISIAHCE AIIQ QIRECZIOU R4(IGEb -'SAIIGEb IIEASgREIIEHZS GANNA <GELI )

12 co=co 0 F 010 0 ~ 04< 3/ 9) TRN 293e7 Oeob( 2/ 3) 3 VALUES <LI.O 0 F 01 oe07 BFNP DISCHARGE oe05 o,o7 CS-137 0 ~ 020 0 ~ 84( 9/ 9) TRN 293 ' 0)04( 3/ 3) ogos( 2/ 3) 0 ~ 03 0 ~ 05 SFNP DISCHARGE o,04- o,o5 0)02>> oeos K-40 NOT ESTAB oe53( 9/ 9) TRN 277,98 Oe60( 3/ 3) oe84( 3/ 3) 0 ~ '30>> oe 80 oe44 oe80 Oe43 le47 8 1-214 oe020 oe30( 9/ 9) TRN 2'93e7 0 ~ 51( 3/ 3) Oebl( 3/ 3)

O. I 3- O. e5 SFNP DISCHARGE 0)31 0 '5 oe46>> Oe79 SI>>212 Oe 100 0 '5(, 7/ '9) TRN 293e7 0)42(

0)23-3/ 3) o,4e(

0 ~ 30 0/

0 ~ 73 3) oeIS. Oeb9 BFNP DISCHARGE oe69 PB 214 NOT -ESTAB 0 ~ 32< 9/ 9) TRN 293e7 oe53( 3/ 3) O,e4( 3/ 3) 0 ~ 13 0 66

~ SFNP DISCHARGE 0132>> o,ee 0 f47>>. oe76

-PB"212 NOT ESTAB oe33( 9/ 9) TRN 293e7 0,52( 3/ 3) 0>53( 3I 3) 0.13 o.ee BFNP DISCHARGE O,BO- o,ee 0)40>> Decl RA 226 NQT ESTAB 0 '0(

oels 9/ 9) 0 65 TRN 293e7 BFNP DISCHARGE oi51(

otsl 3/

Oe65

3) 0 ~ 61(

0)46>>

3/

oe79 3)

~

TL-208 0 ~ 020 Dell( 9/ 9) TRN 293e7 oe18( 3/ 3) 0)17( 0/ 3) 0 F 05 oe22 BFNP DISCHARGE 0) 12 Oe2Z 0 ~ 12>> Oe21 AC-228 0 '60 0 '0(

0 ~ Io 9/

le08

9) TRN 293 '

BFNP DISCHARGE Oe72<

0136>>

3/

le08

3) oeb4(

o,4e-3/

Oe84 3)

SR 89 5.000 9 VALUES <LLD =3 VALUES <I.I.O 12 ANALYSIS PERFQRNED SR 90 leooo 4e87( 9/ 9) TRN 277e98 5)23< 3/ 3) 4e81( 3/ 3) 12 3e64>> 5ebo 5t03>> 5ebo 4 '6>> 5 '7 Hominal 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).

45 ualit Control A quality control program has been established with the Alabama Department of Public Health Environmental Health Administration Laboratory and the Eastern Environmental Radiation Facility, Environmental Protection Agency, Montgomery, Alabama. Samples of air, water, milk, and vegetation collected around the Browns Ferry Nuclear Plant are forwarded t'o these laboratories for analysis, and results are exchanged for comparison.

Data Anal sis Data measured at the control stations for each medium were aver-aged for each sampling period. In order to describe the distribution of control station data, a mean, standard deviation, and 3-sigma value were calculated. We can expect, with 99 percent confidence, that background concentrations would be distributed within these limits. This provides us the basis for comparing control and indicator data. If the indicator data fall within the limits defined for control data, we can say, with 99 per-cent confidence, that the indicator data were not significantly affected by the nuclear plant., If the data do not fall within the 'limits, we will perform further analyses to determine if the difference is attributable to the nuclear plant.

Conclusions A vast majority of the indicator station data were found to be within the distribution defined by the control station data. The ALPHA-M least squares computer program identified concentrations slightly exceeding the limits of the control station data for a small number of radionuclides in samples from indicator stations. Many of these values may be discounted because the error reported by the ALPHA-M program was greater than the cal-culated concentration. The remaining isolated elevated concentrations may be the result of fallout, computer program artifacts, or analytical errors.

The same type of isolated high values occurred in the control station data and may be attributed to the same sources.

Increased levels of radioactivity were observed in milk, rain-water, air particulates, heavy particle fallout, vegetation, and in atmos-pheric radioiodine in March and April following the atmospheric nuclear weapons testing conducted by the Republic of China. This increase was seen in control stations as well as indicator stations, and was widely reported in the eastern portion of the United States. Levels of I in milk as high as 53.9 pCi/1 were observed. The primary radioisoto~es identified 214 in the atmospheric media were 95 Zr, 95 Nb, 131 I, 140 Ba, 14 La, Bi, and 137 Cs and Ru. In addition, slight increases in the concentrations of Sr were observed in sediment samples taken from the Tennessee River near Chattanooga, Tennessee, and in the vicinity of Browns Ferry Nucleax Plant in late 1977 after an earlier atmospheric nuclear weapons test.

46 It is concluded from the above analysis of the data that there were no significant increases in environmental radioactivity attributable to the operation of Browns Ferry Nuclear Plant.

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