ML18283B706

Radiological Impact Assessment, Brown Ferry Nuclear Plant, July-December 1975

ML18283B706
Person / Time
Site:	Browns Ferry
Issue date:	12/31/1975
From:	Tennessee Valley Authority
To:	Office of Nuclear Reactor Regulation
References
RH-76-1-BF-3
Download: ML18283B706 (21)

Text

BH-76-1-BF-3 RADIOLOGICAL IMPACT ASSESSMENT BROWNS FERRY NUCLEAR PLANT JULY-DECEMBER 1975

RADIOLOGICAL IMPACT ASSESSMENT BROWNS FERRY NUCLEAR PLANT JULY-DECEMBER 1975 Introduction potential doses to individuals and populations have been calcu-lated for the time period July 1 through December 31, 1975. - The calculations have been made using the measured releases listed in Tables 1 and 2 for radioactivity in both gaseous and liquid effluents. Dispersion in the environment has been calculated using meteorological data and river flow data measured during this period.

Heteorolo ical Data Meteorological data were measured, and average quarterly joint-frequency distirbutions (JFD's) appropriate for ground-level releases were calculated. The ground-level JFD was derived from wind speeds and directions measured with a sensor located 33 feet above ground level and from the temperature gradient between 33 and 150 feet. Atmospheric stability

'ertical

'as classified as indicated in Table 3.

The wind speeds were divided into nine ranges. For calculational purposes, calms were distributed in the lowest wind speed range (0-0.5 mph) according to the directional probabilities in the 0.6-1.4 mph range. The quarterly JFD's are listed in Tables 4 and 5 for ground-level releases.

JFD's for elevated releases are not listed because the stack was not operated during this semiannual period.

2" (griseou Ef fluents The standard ground-level (building wake) dispersion model was I

used to estimate radioactivity concentrations in the environment.. =Radio-nuclides in gaseous effluents were assumed to be released continuously.

Dose estimates for external exposure and inhalation were made for a hypothetical adult constantly standing unsheltered at the site boundary.

Adult ingestion doses were calculated for radioiodines in leafy vegetables produced't the site boundary, and milk produced at the most critical real cow. Potential child-thyroid ingestion doses from milk ingestion were calculated for the real-cow pathway. The child inhalation dose was calculated assuming constant exposure at the site boundary.

Population doses and average individual doses were calculated' for an estimated 627,000 persons living within a 50-mile radius of the plant site. Population ingestion doses were calculated assuming that each individual drinks fresh milk and eats leafy vegetables produced near his residence. For comparison, a population thyroid dose estimate was calcu-lated based on data for milk production within 50 miles of the plant site.

Dose estimates for the gaseous effluents are presented in Tables 6 and 7.

=Li uid Effluents Doses from liquid effluents were calculated using measured hydraulic data. The average river flows at the plant site were 108,000 cfs.for the third quarter and 51,200 cfs for the fourth quarter. Radio-activity concentrations in the Tennessee River were calculated assuming'hat releases in liquid effluents were continuous.

Doses were calculated for recreation, eating fish, and drinking water. from public water supplies bet;ween the plant site and the mouth of the Tennessee River. The maximum individual dose from drinking water was I

assumed to be that calculated for the n'earest downstream public water supply (Champion Paper Company). The maximum potential recreation dose

', was calculated for a location immediately downstream from the plant outfall.

Dose estimates for the, liquid effluents are presented 'in Tables 8, and 9.

Direct Radiation Statistical analysis of thermoluminescent dosimetry (TLD) data accumulated during the third and fourth quarters at onsite and offsite locations has indicated no significant increase in dose rate levels attributable to direct radiation from plant equipment and to,gaseous

,effluents. 'Large fluctuations in natural background dose rates and in TLD readings tend to mask any small increments which may be due to plant operations.

A project has been initiated to relate reactor power level to direct radiation dose rates offsite using high-pressure ionization chamber measurements. However,,because the plant has not operated since March 22, 1975, results of this work are not yet available for estimating dose rates during this reporting period.

Dose Summar In the third quarter, the maximum site boundary doses were calcu-lated to be 3.1 mrem to the skin and 1.3 mrem to the total body. A potential child's thyroid dose was calculated to be 0.06 mrem. Popula-tion doses were estimated to be 7.7 man-rem to the skin and 0.9 man-rem

to the total body. An average individual within a 50-mile radius received an estimated 0.01 mrem to the skin and 0.001 mrem to the total body from.

radioactive effluents released during the third quarter.

For the fourth quarter, calculations indicated that potential'ite boundary doses were 0.06 mrem to the skin and 0.02 mrem to'the total body'. Potential child thyroid doses were calculated to be 0.03mrem..

Potential skin and total body doses to the population were estimated to be 0.11 and 0.02 man-rem, respectively. An average individual within a 50-,

mile radius received an -estimated 0.0002 and 0.00003 mrem to the skin and total body, respectively, from effluents released during the fourth quarter, 1975.

The majority of the doses were due to gaseous effluents released from the plant. The doses from liquid effluents and direct radiation were very small. The potential doses are well'below the limits specified in the Browns Ferry Nuclear Plant technical specifications for plant operation.

LIST OF TABLES

~Pa e Table 1 BFNP Gaseous Effluent Releases Table 2 BFNP Liquid Effluent Releases 7 Table 3 Classification of Atmospheric Stability Table 4 BFNP Meteorological Data for Ground-Level 9-12 Releases Third Quarter, 1975 Table 5 BFNP Meteorological Data for Ground-Level 13-16 Releases: Fourth Quarter, 1975 Table 6 BFNP Gaseous Effluent Doses Third Quarter, 17 1975 Table 7 BFNP Gaseous Effluent Doses Fourth Quarter, 18, 1975

.Table 8 BFNP Liquid Effluent Doses Third Quarter, 19 1975 Table 9 BFNP Liquid Effluent Doses Fourth Quarter, 20 1975

TABLE 1 BFNP GASEOUS EFFLUENT RELFASES Ground-Level Peleases Elevated Releases Third Quarter, 1975 Fourth Quarter, 1975 Third Quarter, .1975 Fourth Quarter, 1975 Radionuclide Ci) (Ci .

(cQ cx H-3 1.56E-01 1.43E-Ol Ar-41 <1.78E+02 <1.59E+00 (The Brooms Ferry stack ~ras not operated Sr-89 1.02E-05 1.46E-06 during this semiannual period) .

Sr-90 1.32E-06 2.93E-06 Kr-85 <1.45E+04 <2.23E+02 Kr-85m <6.52E+01 <7.28E-01 Kr-87 <9.99K+01 <9.97E-01 Kr-88 <1.72E+02 <1.70K+00 I-131 <1.36F.-03 <6.30F;04 I-133 <3.22E-03 <3. 61E-03 I-135 <6.91E-02 <8.72E-02 Xe-133 <9.52E+01 <9.78E-01 Xe-135 <6.48E+Ol <6.95E-01 Xe-135m <2.75E+03 <8.34E+00 Xe-138 <3.15E+03 <1.35E+01 Cs-134 <4.27E-03 <8.95E-04 Cs-137 <1.13E-03 <3. 03E-04 Ba-140 <2.86E-03 < 1. 53E-03 La-140 <2.86E-03 <1.53E-03 Zr-95 <3.00E-03 <5.89E-04 Nh-95 <4.69E-03 <3.60E-04 Co-58 <5.56E-03 <2.70E-04 Mn-54, <3.79E-03 <2.92E-04 Zn-65 <7.39E-03 <9.40E-04 Fe-59 <1.20E-03 <4.41E-04 Co-60 <1.76E-02 <5.85E-04

TABLE 2 BFNP LI UID EFFLUENTS RELEASES Activit Ci)

Nuclide Third uarter Fourth uarter H-3 2.8E-OO 6. 4E-01 Na-24 <4.2F.-03 <2. 4F;03 Cr-51 <6. 5E-02 <3.6E-02 Mn-54 <8.4E-03 <5.0E-03 Mn-56 <1.3E-03 <9. 7E-04 Fe-59 <1.4E-02 <7. 1E-03 Co-58 <1.8E-02 <1.3E-02 Co-60 <1.6E-02 <1.3E-02 Zn-65 <3.1E-02 <1.6E-02 Sr-89 <1.4E-04 <1.0E-03 Sr-90 <4.7E-04 <2.7E-04 Zr-95 <2.5E-02 <7.0E-03 Nb-95 <2.5E-02 <7.0E-03 Mo-99, .<2.7E-03 <3.0E-03 Tc-99m <2.7E-03 <3.0E-03 I-131 <7.9E-03 <4.3E-03 I-133 <5.8E-03 <3.2E-03 Xe-133 <1.2E-02 <6:7E-03 Cs-134 <1.6E-02 <1.5E-02 Cs-136 <6.4E-03 <3.6E-03 Cs-137 <4.0E-02 <1.5E-02 Ba-140 <2.9E-03 <1.9E-03 La-140 <2.9E<<03 < 1. 9E-03 Ce-141 <1.3E-03 <7.5E-04 Totals 3.1E-00 8. 1E-01

TABLE 3 CLASSIFICATION OF ATMOSPHERIC STABILITY Ground-Level Releases buildin vents Stability ,Pasquill Temperature Change Classification Cate ories with Hei ht 'C/100m Extremely uns table A <-1.9 Moderately unstable .B -1.9 to -1.7

'o Slightly unstable -1.5 Neutral -1.5 to -0.5 Slightly stable E" -0.5 to 1.5 Moderately stable 1.5 to 4.0 Extremely stable Elevated Releases stack S tability TVA Temperature Change Classification Cate ories with Hei ht ('C/100m Neutral 1 <-1.0 Neutral 2. D2 -1. 0 to -0. 8 Neutral 3 D3 -0.8 to -0.5 Slightly stable 1 El -0.5 to 0.0 Slightly stable 2 E2 0.0 to 0.5 Stable EF 0.5 to 4.0 Extremely stable >4. 0

TABLP. 4 BROWNS FERRY NUCLEAR PLANT METFOROLOGICAI. DATA*

JOINT FRE UENCY DISTRIBUTION IN PRFCFNT GROUND-LEVEL RELEASES - THIRD UARTER 1975 STABILITY CLASS A 0 13 0+0-0 ~ 5 MIHO,SPEED

'0.45 0 ~ 6-1 4

'.10(HETERS/SEC) ANO RANGE )MILES/HR) 1~5-3 4

'1.99 3~5-,5+4 2.88 5+5-7 ~ 4 4 ~ 45 7+5-12 ~ 4 bo91 12 ~ 5 )8 9 ~ 59 19 24 GT 13+00 24 I CTCR 0 ~ 090 0.0 Ooo H 0.0 0 ~0 0 ~0 ~ ~ 0 0 0 0090 Oa090

)tME 0 +0 0~0 0 ~0 0 0 0 so 0.460 0~0 0~0 0 ~0 NE 0 0 0 0 0 0 0 0 ~0 0 '90 0 0 0+0 0 0 0.0 Oso ENE E

0.0 0.0 0 ~0 0 0 0

0 0)0 0

0 '.0050 010 0

0 ~0 0+0 0.050 Ooo 0.0 0 0 0 0 0~0 0 0 0+0 0~0 0 0 0.0

<<SE 0 0

~ Ooo S<< 0.0 0 0 0 ~ 280 ) .480, 0 280 0+)40 OiO 0 0 0.0 SSL 0 ~0 0 0 0 ~ 320 0+920 0 050 0 050 0~0 0 0 0.0 S Boo 0 ~0 0 090 0 ~ 280 0 050 Oao OiO Oao 0 ~0 SSM 0.0 0o0 0 +050 0 0 Ooo OoO 0 0 OoO 0 0 SM 0 so 0 0 0+0 0 ~ 090 Ooo 0.0 OeO 0 ~0 Oeo MSM 0+0 0oO 0 ~050 OeO 0~140 0 0 0 0 0~0 0~0 M 0 +0 0 so ~ 0 +050 0 0 0 ~0 0~0 0 0 0 ~0 ,0 0 MNM 0.0 0.0 0.0 0%050 Boo 0 '80 0 0 0.0 0~0 NM 0+0 OoO 0.0 0+0 0+0 0 230 0 ~ 140 0.0 0 ~0 NNM 0ro OoO 0 ~0 Ooo 0 ~0 0~090 0 370 OiO ,. 0.0 TOTALS 0.0 0+0 0 ~ 840 2 ~ 870 0 ~ 660 ,1 430 0 600 0 ~0 0+0 TAB ILITY CLASS 8 WINO SPEED )METERS/SEC) ANO RANGE )MILES/HR) 0 13 0+45 I 10 )+99 2 ~ 88 4 45 ba9) 9+59 13 00 Ooo 0 ~ 5 0 ob-I o4 I ~ 5-3 o4 3 ~ 5 5 e4 5 i5-7 4 7 o5-12 o4 12 5-18 19-24 CT 24 SCC)02 H 0.0 0 0 0~0 0 090 0 050 0 370 0~0 0 ' 0.0 Nttl Boo 0+0 OoO Oe)40 0 140 0 320 0 0 OoO 0 ~0 HE 0 oO 0 ~0 0oO 00050 0 ~ 180 0 F 050 0~0 0+0 0.0 EHE 0 0 0 0 0 0 OoO OoO 0~0 0 0 0+0 0.0 E 0 +0 0.0 0 ~ 050 0 ' 0.0 0.0 0.0 0.0 0.0 0.0 ESC 0 0 0 ~0 0.050 0 ~ 050 Oo050 0 0 0~0 0 ~0 SE 0.0 0.0 0 +650 0 ~ 830 0 ~ )40 0~0 0~0 Oeo OrO ssr 0 ~0 0oo 0 ~ 510 0 ~ 140 Ooo 0 0 0~0 Ooo 0.0 0 ~0 0.0 OiO 0 ~ 280 '0 0 0~0 0 0 OoO 0.0 S

SSM 0 0 0.0 0 050 0 ' 0 ~0 0 ' 0 0 0~0 0.0 SM 0.0 OaO 0 ~0 OoO 0.0 0+0 0 0 0.0 0 0 MSM 0.0 0 0 0.050 0+050 0 ~050 0~0 0.0 0 ~0 0.0 0 0 0.0 0.0 0+0 50 0.0 0 090 0 0

~ 0 0 0 ~0 MUM 0+0 0 ~0 0.050 0 180 0 ~ 180 0 F 230 0. 090 0 ~0 0~0 NM 0 00 0 0 0 ~ 050 0+2 30 0 ~ 050 0 '70 0 )40 0 ~0 0 0 ttt)M 0.0 0.0 0 ~0 0 0 0 140 0 '30 0 ~ 230 0.0 0 0 TOTALS 0.0 0.0 I 0460 2 ~ 090 0 980 ).660 0 F 460 0 0 0.0

• I.ost Record 4.0 percent Percent calm in each stability class appears as total under first Mind speed.

1

10 TABLE 4 Continued STABILITY CLASS C MIND SPEED INETERS/SEC) AND R ANGE INILES/HR) 0 ~ 13 0i45 I i)0 1e99 F 88 F 45 bi91 9 ~ 59 '13 00 Oi0-0 5 0.6-1.4 ) iS-3 ~ 4 .3 ~ 5-5i4 5 i5-7 4 7i5-12 4 12i5-18 ) 9-24 GT 24 SECTOR ti 0iO Oi0 0.0 0 ~ 140 0 180 0 370 0 ~ D50 0iO Oi0 tite E OiO OiO 0.0 0 140 0.090 0 090 0 0 . OiD OiO ttE 0i0 0 ~0 0 0 0 Oi050 0 0 0 0 0 0 0 0 EtiE 0.0 0 ~0 0 i050 0'i)40 0 ~0 0 0 0 ' 0 0 0 0 0.0 0.0 0.0 0.0 C

ESE SE 0eO 0 ~0 0 0 0io 0i0 0 0 Oio 0 ~ 320 OiO 0 140 0 ~ 140 0 i050 Oi050 0.0 OiO 0 0 0 0 0~0

., 0 0 0 ~0 OiO 0 0 OiO SSE 0.0 ,0 ~ 0 0 ~ 180 Oi)40 0 0 Oi0 00 . 00 OeO 5

SSM, SN 0iO 0.0 0.0 0 0 0iO 0 ~0 0 ~ 050 0 i050 0.0 0.050 0.050 0 '

0.0 00 00 OiO 00 Oio D

Di0 0

Oi0 . , 0.0 0.0 0 0 0 0 0 ~0 0 0

@Std 0i0 0.0 OqO 0~0 0iO Oio 0 0 0 ~0 0 0 Oi050 OiO

' 0 '

0 140

. 0 0 0io OiO

'L'N'N ttM 0eO 0.0 0io 0.0 0 e 140 0 ~ 090

....0 090 Oil 40

.... 0 0

0,

'90 0

Oi050 Oi090 De)40 Oi280

., Oi0 0 0 0 ~0 0 0 0.0 t)Ntt Oio Di0 0 ~D 0 090 , ...0 090 ....... 0 090. 0420, .00 0 0, TOTALS '0.0 0 ' 0.880 I;260 0i650,, Oi690 1i030 .... OiO 0 0 STA81I.I TT CLASS D MIND SPEED IHETERS/SEC) ANO RANG E IN)LES/HR) e 0 ~ 13 Oe45 I 10 ) 99 F 88 4i45 bi9) 9e59 13 00 0 eO'-0 ~ 5 Oib ) i4 li5 3i4 3i5 5i4 5 ~ 5-Ti4 7i5-IZ ~ 4 12 ~ 5-) 8 19-24 GT 24 SECTOR N 0.0 0 ~0 0 ~ 140 0.600 0 ~ 740 2 030 0 ~ 280 0~0 OiO NME 0 ~0 0 ~0 0e280 0 280 0 550 0 370 0 0 OiO 0 ~0 NE 0i0 0 0 0 ~ 550 0 370 0 180 0 140 Oi 090 0 ~0 0.0-

'NE 0.0 0.050 0 ~ 650 0.420 0.0 De050 0 0 0.0 OiO I '00.0 0 0 0i320 Di320 0 0 0 0 0 ' 0iO 0 0 ESE ~ 0 0 0 0 ~ 600 0 ~ 790 0 420 0.600 0 0 0 0 0

$ 'I 0.0 0 050 I e430 0 ~ 690 0 '30 Oi510 0'iO 0 "0 Oi0 SSE 0 0 0 050 0 790 0%460 0 0 0<<05D 0 0 Di0 OiO S 0.0 0-0 0 ~ 600 0.8 80 0 090 0.0 0 0 0i0 0 0

$ $ 'K 0 0 0 ~0 0.050 0 180 0 i050 0~0 0 0 0.0 0 0

~

g DeO 0 0 0 i090 0 090 0 ~ 050 Oi0 0.0 0.0 0 0

'MSM 0 0 OeO 0 i230 Oe420 0 320 0 '80 0 ~ 140 0 0 0 0 N

V tiM 0.0 0.0 0 0 0 ~0 0 510 0 ~ )40 0 920 0 230 0~ 920,1Di 690 0 e4ZO e 110 0 140 0 ~ 230 0.0 0.0 0

0.0 0

ted 0.0 OiD 0 ~ 090 0 230 0 '80 0 '90 ,0 ~ 370 0 0 0iD N'4 X 0 0 0 ~0 0 ~ 180 0 F 140 0 600 3e)40 I 340 0 050 0 0 TOTALS 0.0 0 ~ 150 6i650 7 020 4 BSD 9 660 2 590 0 '50 0 0 I

~ 1 s

11 STAB I LIT'Y CLASS E KIHD SPEED tt)f TERS/SEC) AND RANGE IHILES/HR) 0 ~ 13 non-0 5 0 Oo45 6-1.4 I ~ 10 I 5-3o4 I 99 3 ~ 5-5o4

~ 2eBB 5o5-7 4 4~

7o5-12o4 45, 12 ~ 6 91 5-18. 19-24 9 ~ 59 GT 13enn 24 SECTOR MME, Den non 0 ~ 180 0 0 0 230 0 ~ 920 0 550 0-320 0 e4o20 0 230 00, Oo460 00, 0~0 00 00 0 on Gn 00 0 0 Don NE 0~0 non 0.0 0 ~0 0 ~ 790 0.510 0.550 0 ~ 280 0 ~ 180 0 140 0.0 00,...

no 0~ 0...0 nn

~ 0 0~0 0.0 8

CSC SE O.n 0.0 0.0 0 ~0 0 ~0 0 ~ 180 I e060 I e'160 2 e400 0 ~ 650 I ~ 430 2 ~ 630 0 ~ 550 0 830 0.0 0 '70

.. o neo 0~

0~0 0, Oen 0~0 0 0 0.0 0 0

)5 D.n Do)40 0 ~ 880 0 690 0 090 Oo050 , Oon . 0.0 = D.n 5 Don 0 en50 0.650 0 370 0 650 Oo180 Oon Oon 0 0 SSK SA Don 0.0 0 050 0.0 0,.230 0 090

.0 0

140 0,

0 320 0 050 0.050 Oon

... 0.0 0~0

, 0.0 0 0 0 ~0 0.0 KS'K 0.0 O.D 0 ~ 090 0.050 non 0.0 0~0 . Oen 0 0 Ii 0.0 00050 0 280 0 ~ I 80 0 ~ 050 0 '90 Oon Oen 0 ~0 KNK Nli Den 000 0-0 0 ~0 0 e140 0 ~ 050 0.040 0 F 180 0 ~ 140 0 0 00 Oo 050

, 00 0 0

~

Oen non non 0 0 NNIt Den 0 ~ 050 0 e 370 0 830 0 F 280 0 ~ 180, . Oe140 ... 0 0 0 0 TOTALS 0.0 0.700 9 ~ 850 8 ~ 94on, 3 880 1.430, 0 140 Oen 0.0 STAB)LITT CLASS F KltoD SPEED IHE'TERS/SCC) AND RANGE )MILES/HR) 0.)3 0 ~ 45 I 10 I 99 . 2 ~ 88 4 ~ 45 6 ~ 91 9 ~ 59 13enn 0 0-0 5 Oo6 1e4 I ~ 5 3 ~4 3 ~ 5 5o4 5oS 7 ~ ~ To5 IZe4 12 ~ 5 18 19-24 GT 24 SECTOR N Den 0 050 0 ~ 180 Oo460 0 ~ 140 0 0 0~0 0 ~0 0 0, tiNE Den 0 ~0 0 230 0.180 0 090 0~0 0~0 non Don tiE 0 on 0 0 0.460 0.23D 0 o 140 0 0 000 non 000 Cite 0.0 0.090 0 550 0 F 140 0 0 Oen Oon 0 0 0 0 C O.n 0 0 I 620 0 600 0 ~0 0.0 Don 0.0 0.0 ESE Don 0 050 I ~ 160 0 600 0.0 non 0 0 non 0 0 SE 0.0 0 ~ c80 2 5'on I 160 0 ~ 230 . Oon'. 0~0 0.0 ..,..Don SSE 0 ~0 0 180 0.970 Oo420 0 ~ 180 140 0~0 0.0 0 0 S D.n Oo 140 0 ~ 550 0 23D 0 420 0.050 0~0 Oon Oen 5 )It 0.0 0.090 0 e090 Oon Don 0 0 0~0 Don 0.0 SK Don non 0.180 0 ~0 0.0 0.0 Oen 0.0 000

'KSK 0.0 0-0 0 ~ 180 Oon 0 ~0 0.0 0~0 D.n 0.0 K 0 ~0 0.0 0.0 0 0 0 0 Oen an D 0 0.0.

KttK 0 ~0 0.0 '.0 0.0 0 0 0 0 0 0 Oon Oon ttK 0 00 0 0 0.050 0 ~ 050 0.0 0 0 0.0 Oon Don ttNK 0.0 0.0 0 ~ 370 Oo280 0 ~0 Oon 0 0 . 0.0 000 TOTALS Den no880 9 ~ 130 4 ~ 350 I 200 0 190 0 0 Oon o Oon

12 TABI.E 4 Continued STAB ILITY CLASS G tt)ttD St'EED tttETERS/SEC) AttD RAt.'GE ttt)LES/HR I 0 ~ 13 Oop 0 ~ 5 0o45 0 ~ 6 1o4 I olo, lo5 3o4 Io99 3o5 5o4 2o38 4o45 5o5 7 ~ 4 7o5 12 ~ 4 1' Go91 18 9 ~ 59

)9-24

'13 GT 24 00.

SBCTDR tt 0.0 0 ~ 140 0 o420 Ooo 0.0 Ooo. 0 0 0 ~0 0 op httf,- G,O 0 ~ 090 O.88O 0 140 ooo Ooo 0 0 0 op Ooo ti- 0 0 0 ~ 180 0 ~ 600 Ooo 0.0 D 0 0 0 0 op 0 0 C

0 0 0 050 0 ~ 600 0 090 0 ~0 0 0 .0 0 0 ~0 0 0 C

Pop 0.090 I o340 0 230 Don 0 0 0 0 0.0 Doo CSC 0-0 0 F 050 0 ~ GDD 0 050 0 op D.o 0.0 0~0 0.0 SB 0 0 0 230 I o390 Oo)40 oop 0.0 0~0 Oon 0 0 sse 0.0 0 '70 I ol 10 0 ~ 280 0 ~ 140 0.050 0.0 Ooo 0 0 S 0 D 0 230 0 ~ 550 0 on 50 0 0 0 0 0 0 pop 0 op 5 5tt 0.0 0 ~ 090 0 o090 Doo .. Oop, ooo 0~0 0.0 n.O oo S'A 0.0 0.090 0.050 0 ~0 Ooo 0 0 0 0 Ooo 0 0 V 5tt 0 0 0 140 0,0 Ooo 0 0 pop Ooo 0.0 0.0 lt 0.0 0 0 0.0 Ooo 0 on noo Don 0 0 0.0 Mtiu n.o 0 050 0 0 pop 0.0 ooo Ooo 0 0 0 0 tiit 0.0 0 0 0 0 Ooo 0 0 0 0 0 0 0.0 0 0 tiNtt 0 0 0 o090 0 ~ 140 .0.050 Ooo Oo0 0 0 0 ~ 0 0.0 TOTALS pop I 890 7 ~ 770, I 030, . 0 ~ 14D D.OSO ., 0, 0 ~ ... 0,0 . . 0 0

TABLE 5 BROWNS FFRRY NUCLEAR PLANT )IETEOROLOCICAL DATA*

JOINT FRE UENCY DISTRIBUTION IN PFRCFNT CROUND-I.EVFL RELEASES - FOURTH UARTFR 1975 STABILITY CLASS A MIND SPE ED {HETERS/SEC) AND RANGE IHILES/HR) '

0 ~ 13 0 ~ 45 I ~ 10 I o99 2 ~ 88 4.45 ~ 91 9.59.. 13 00 I 5 "3.4 3 ~ 5"5 4 5 o5-7o4 7 ~ 5 12 ~ 4 12 ~ 5 18 19 24 GT 24 0.0-0 ~ 5 Do6 I oC SECTOR 0.0 0.0 0 ~ 240 0 140 0 240 Ooo OoO 0-0 N 0 0 NNE 0 0 0 ~0 0 ~ 140 0 ~ 140 0 ~0 0. 240 0.0 0 0 0 0 0 ~ 050 001 90 0.0') 0 0.050 0~0 0 ~0 0 0 NE 0oo 0 ~0 0.0 0 0....., Ooo ENE 0o0 0.0 0 ~ 050 OoO 0oo 0 0 0 ~0 0 0 0 050 0 ~ 050 0.0 D 0 Oo0 0oo 0oO E

0oo 0 ~0 0~0 0 570 0 330 0 '50 090 0~0 .

Ooo 0 0 0 ~0 0 0 0.0 CSE'E 0.0 0 ~0 0 ~ 190 2o4,50 0 o420 0 I o790 Do)40 Ooo 0 0 0 0 0~0 SSE 0.0 0~0 0 330 0~0 Ooo 0 ~0 0.0 0 ~0 Oo)90 1.180 0 ~0 0 0 5 0.0 Ooo 0 0 SSM 0 ~0 0~0 0 0 . 0.050 0 ~ 050 0 0 .

$M 0.0 0 ~0 0.0 Oo050 Oo0 0.0 OoO 0 0 0 0 Oo3 80 OoO Oo0 0 . 0 ~0 0 ~0 MSM 0.0 0oo 0 ~0 0.140 0 050 Oo0 Oo0 0 ~0 0 0 M 0.0 OoO 0 0 Oo190 0~0 0 0 0 0 MNM 0o0 0.0 0.090 Oo0 0 050 00090 0 ~0 0 330 0 0 Oo0 000 0.0 0 ~0 0 0 NM

.; Oo 140 . 0 ~ 0. 0 ~0 0 ~0 NUM TOTALS 0.0 0.0 Oo0 0 0 0 0 I 040,

, Oo0.

7 320 .,

Oo050 1 ~ 370 I ~ 330 0 0 ... Ooo ., Ooo STAB! LITT CLASS 8 MIND SPE ED IHETERS/SEC) AND RANGE IHILES/HR) 0 o13 0o45 I ~ 10 199 2o88 445 691 9 ~ 59 13 o00 2<

0.0-0.5 0 '-lo4 1.5-3.4 3o 5"5 4 5 5 7.4 7,5-12 ~ 4 12 ~ 5-18 19-24 GT SECTOR 0.0 0 050. 0 ~ 280 0 140 0 F 140 0 050 0~ 0.. 0oO NNE 0oO D ~0 0 ' 0 140 0 190 0 ~ 280 0 '90 0~0 OoO 0.0 NE 0.0 0 ~0 0 o090 0 '90 0 050 0~0 0~0 Ooo 0 ~0 0 0 0 ~0 0 0 C'iE 0.0 0 0 0 050 0.0 0 ~0 Ooo 0.0 0-0 0 090 0~0 0 0 Oo0 0 ~0 0.0 0 ~0 E

ESE 0 ~0 Do0 0 ~ 050 0 '90 0.0 0.0 0 0 0 0 0~0 0oO 0.0 .,

0 ~0 Oo0 0 0 0o0 0 380 0 660 0 ~0 SC 0.0 0.0 0 610 0 ~ 610 0 050 0 0 0 0 0.0 0o0 SSE' 0oO OoO 0 ~ 140 0 ~ 760 0 0 0~0 0~0 0 ' 0.0 0.0 0.0 0 ~0 0 ~ )4oo 0.190 0.0 0.0 0 0 0.0 SSM 0 0 0~0 0 ~ 140 0 240 0 ~0 Oo0 0 0 SM 0.0 0 ~0 0 ~0 0 ~0 0 0 0.0 0 ~ 710 Do050 0 0 MSM 0o0 0.0 0oO 0.0 0.0 0 240 0 ~ 330 0 '50 0.0 0 ~0 0 0 0.0 0.0 MNM 0.0 OoO 0 0 Oo240 0 ~ 520 Do520 OoO Oo140 0.280 0.900 0 0 ,Oo0 0 ~0 NM 0.0 0 ~0 0o0 0 0 NNM 0.0 0.0 0 ~0 0.0 50 0.520 0.470 0 0 0 ~0 4o590 o310 I ') 0 0 050 OoO Boo TOTALS 0.0 0 0 1.790 2 2 ~

ALost Record 2.0 percent Percent calm in each stability class appears es total under first wind speed.

14 TABLE 5 Continued STABILITY CLASS C M)tlD SPEED )METERS/SEC) AND RANGE (HILES/HR) 0 +13 0 D"0 5 0 6 0 +45 le4 I ~ IO I ~ 5 3o4 I 99 3a5 5o4 2 ~ 88 5 +5 7o4 4o45 7o5 12i4 6~

12o5 18 91, 19 9+59 24 GT 13 00 SECTOR ti Don 0 0 0 0 0 050 0 ~ 140 0 050 0 050 0 0 0+0 NNE 0.0 0 ~0 0 ~ 050 0 050 0.050 0 '40 0 ~0 0+0 0 0 NE 0.0 Don 0 ~ 190 0.0 0 ~0 0 0 0 0 0 ~0 0 0 ENF 0.0 0 ~0 0 ~0 0~0 0 050 0 0 0.0 . 0.0 0 0 E Don 0.0 0 0 0 050 0+0 0~0 0 0 0.0 0 0 ESE Don Don 0 +050 0 140 Oo)40 Oon 0 0 , 0 0 0 0 SE Don 0+0 0 +470 0 '40 0.090 0~0 0.0 0+0 000 SSE 0 ~0 0+0 0 ~ 380 0 ~ 050 Don Oon 0 0 0.0 0 0 0,0 0 ~ 240 0+)40 0.0 0.0 5

5SM'M Don Don Dan Don Oon 0 '90 0 +050 0.050 0+140 Don 0 0 Oon 0 0 0~0 Oen' 0 0 0~0 Otn

...0.00 0 0.0 Oin MSM Den 0~0 0 090 0+280 0 ~0 ~0 Oen .... 0~0 "D 0

'M Don 0.0 0 ~0 0 '80 0 ~ 090 0+0 0+0 0 an 0 ~0 MNM ttM 0+0 Don 0~0 Don Dan Don

00) 90 0 140 0 +240 0 ~ 090 0 050 0 ~ 610 0~ 0,..

0.)40 0+0 Oon

~

0~0 0 ~0 NN'M 0 ~0 0 0 0 0 0~090 . 0 ~ 330 0+ 420 0 050 0 ~ 0 SO ,, 0 ~0 TOTALS Don Oon I ~ 610 I 790 I ~ 220 I 270 . 0+240, Oi050 0 ~ 0.

STAB)LITT CLASS D, Mlt)0 SPEED IHETERS/SEC) AND RANGE )BILES/HR) 0 ~ 13 0 +45 I ~ 10 I ~ 99 2 ~ 88 4 ~ 45 691 959 1300 SECTOR 0 0-0 ~ 5 0+6-I +4 I o5-3 o4 3+5-5 o4 5 a5-7 ~ 4 7 o5-12 o4 12 ~ 5 18, 19-24, GT 24 N 0 0

~ 0%050 0 ~ 280 0.520 0 570 0~ 520 0 050. 0 0 0 0.

MME 0 0 0.0 0 ~ 380 0.6 10 0 ~ 420 0 F 240 0 0 Oin 0 0 0.0 000 0 570 0 ~ 570 0 240 O.n Own 0.0 0 ~0 E'ti O.n 0.0 0 ~ 190 0 090 Don 0.050 0~0 0 0 0 0 E 0 0 0 0 0 050 0 '40, 0 ~ 090 0.050 Oin 0 ~0 Don ESE 0 0 0.0 0~760 0 ~ 760 0 ~ 380 330 0 0 0.0 0.0 SE Don 0 ~ 050 1.270 130 0 ~ 380 0 380 0~0 0 0 0.0 SSE Don 0 0 I 510 0 ~ 610 0 e090 0~0 0 0 Don 0 0 5 0.0 0 0 1.230 0 F 380 0 '050 Oen 0.0 Oin 0 ~0 SSM 0 ~0 Don 0%710 0 '40 0.0 0 0 0~0 0 0 0 0 SM 0.0 0.0 0 +610 0 '90 Oon 0 0 0 0 Oin 0 0 MSM 0oO 0.0 1 +040 0 850 0 190 .0

• 0

~0 0 0 0.0 0.0 M 0.0 0.0 0 570 320 0~660 0 0 0 Oin . Den MN'M Den 0 ~0 0 050 0~660 0 280 0 090 0.0 0.0 0 0 NM 0.0 0.0 0 050 0+240 0 380 0.280 0~140 0+0 0+0 tlNH O.n 0 0

~ 0 ~ 380 0 710 0 520 0 240 0. 050 0 0 0 0 TOTALS Oon 0 100 9 ~ 650 9 020 4 +250 2 ~ 180 0 ~ 240 0 0 Oin

15 TABLE 5 Cont:inued STAB)LITT CLASS E KIND SPEED IKE TERS/SEC) AND RAttGE (K)LES/KR )

0.13 0 ~ tS I ~ 10 I ~ 99 2 ~ BB ~~ 45 6 ~ 91 9 ~ 59 13 e00 OeO 0.5 0.6-)e4 I ~ 5-3e4 3 ~ 5-5 e4 5e5-7e4 7e5-12e4 12e5-18 19-24 GT 24 SECTOR N 0 0 0.140 0.990 0 ~ 610 0 ~ 420 0 420 0 0 0 0 0 0 tlN F 0.0 0 050 0 330 0 ~ 380 0 ~ 140 0 ~ 190 0~0 Oe0 0~0 tl E. 0-0 0 e090 0~570 0 420 0 ~ 090 Oe280 ,0 ~ 0 OeO 0 '

E:tE 0eO 0 ~ 050 le040 0 ~ ) 90 0 0.0 , 0~0 0 ' 0 0 E 0eO 0.0 0.0 0 900

'50 0 990 0 '90 0 '50 0 0 0.0 0 '

ESE 0 ~0 0 I ~ 370 Oe850 0 710 0 0 0.0 Oe0 SE 0eO 0 ~ 090 2 080 0 ~ 610 I ~ 930 0 F 710 0 ~ 420 0 ' 0.0 0 0 SSE 0 ~0 0 0 0 ~ 140 0e190 0~0 0~0 0.0 0.0 S 0e0 0 '90 0 800 0 240 0 0 0 0 0~0 0 0 0 0 SK 0 0

~ 0 '50 0.940 .... OeO 0 0 0.0 0 0 0.0, 0.0, SM 0.0 0.090 0 '10' OeO 0 0 0 0 OeO 0e0 0e0 MSM K

0 0 0eO 0 F 050 0.050

~ 040 0 ~ 850 0 280 1.180 0 0 0 ~ 090 0 050 Oe0.... 0 0 0 0 0 0 0 0 0 0 0 0 M!lK 0 ~0 0eO 0 F 050 0 ~ 190 0 050 0 380 Oe240 0 280 0 0 0.0 0 ' 0 ~0 0 0 NM 0 0 0 090 0 0 0eO 0 0 HNM 0 ~0 . 0.050 , 0e990 0 330 .0 190 .Oe 0 0 0 0.0 0.0 TOTALS 0eo I ~ 040 13 180... 8 580 2 870 2 210 00 ... 0.0 0 0 STAB)LITT CI.ASS F KINO SPEFO IKETERS/SEC) ANO RANGE IN)LES/KR) 0 0.13

'-0 ' Oe6 Oe45 I~

)e10 I ~5 3 ~ t 3 ~5 5 ~ ~

le99 2eBB 4e45 5e5 7 ~ t TeS 12 ~ t 6 ~ 91 12 ~ 5 18 19-24 9 '9 13 F 00 24

~

. GT SECTOR ll 0.0 0 ~ 190 0 ~ 8 50,. 0 ~ 140 .0 190 OeO OeO 0 ~0 .... 0 0 NNE 0eO 0 ~ 050 0 ~ 940 Oel 40 0 e090 0 0 0 0 OeO 0 0 ttc EttE 0 0 0 0 0 ~ 090 0.050 0 ~ 800 I e420 0 ~ 240 Oe050 0 050 0 0 0 0 0~0 0

0

0.0 0.0 0 0 OeO E 0e0 0 ~0

'50 1.270 0 ~ 660 Oe0 0 ' OeO 0.0

'0.0 OeO ESE Oe0 0 0 ~ 520 0e090 0 ~ 050 0 0 0.0 0 0 SE. 0e0 0.090 0.190 Oe090 0 ~0 0 0 0 0 OeO . 0.0 SSE 0 ~0 0~0 0 050 0.0 0 ~0 OeO 0 ' 0 0 0e0 0 0

~ O S )90 0.0 0.0 0 ~0 0~0 0~0 0 0 OeO SSK 0.0 0e0 0.140 0.0 0 ~0 Oe0 0.0 0 0 0.0 SM 0eO OeO 0 ~ 090 Oe0 0 0 0~0 0 ' 0 ' 0.0

'M 5lt 0eO 0.0 0 ' 0.0 0 0 0.0 0 ' 0 0 0.0 0.0 K 0 ~0 Oe0 OoO 0 OeO 0.0 0 ~0 OeO MtlM 0e0 0.050 0 ~ 190 0 0 0 ~0 0.0 0 0 0 ' 0.0 tlK 0 0 0.050 0 ~ 140 0 050 0.0 Oe0 0 0 OeO 0 0 Nttu 0.0 0 o090 0 ~ 470 0 ~ 420 0 ~ 090 0.0 0.0 .0 eO 0 0 IO'AL 5 0.0 0 ~ 900 7 ~ 070 I 880 0 470 0' OeO 0 ~0 0 0

TABLE 5 Continued STAOILITY CLASS G MIND SPEED (HETERS/SEC) AND RANGE INILES/HRI 0.13 0e45 ~ I elp I 99, 2e80 4a45 6 ~ 91 19-24 9 ~ 59 .13+00 00 0 ~5 0 6 I 4 I ~ 5-3~4 3~5 5 e4 5~5 7i4 7 5 12 4 12 ~ 5 18 G'I SECTOR tt C.p 0.520 I ~ 460 0 240 0 050 0 0 0.0 0 0 0 0 tttti 0.0 0 ~ 240 0 940 0 ~ 0 S'0 0 050 0 0 Oip Cop Cop 0-0 0e ltp 0 .710 0.0 0 ~0 0~0 0 0 0 0 0.0 PtE p 0 ~ 050 1.270 0~0 0.0 Oop 0. 0.0 0 0 E 0 0 0.050 0+420 0.140 0+0 0 0 0'.0 Oop 0.0 ESE 0 0 0 op 0 ~0 0 0 0 ~0 000 0~0 0 0 Cop SE 0 0 0 ~ 090 0 e090 Oip 0 0 Oop 0~0 Oap C.P SSE 0 0 0 ~ 050 0.090 0~0 0 ~0 0.0 0 0 0 0 0 0 S 0 ~0 0 +050 0 ~ 090 0 0 0 0 pep 0 0 0~0 0.0 SSM Cop Cop 0 ~ 050 0 0

~ 0 ~0 0.0 0.0 . Cop 0.0 SV 0.0 0 ~ 140 0.0 0 0 O.D 0~0 Oip 0 0 0.0 MSQ 0.0 0 ~0 0 ~0 0 0 0.0 0.0 0.0 0 0 0.0 M 0+0 0 0 0 ~0 0~0 0 0 0+0 0 0 0+0 0 0 MttM 0 ~0 0 050 0.0 0 0 0+0 0 0 0 0 0 ~0 0.0 NM 0 0 0.140 0 ~0 0 0 0 ~0 Oop 0 ~0 0.0 0 0 ttNM 0 0 0.420 0 ~ 470 0 090 0 0050 0 0 0~0 .0 0 0.0 TOTALS 0 0 I ~ 940 5.590 0 560 0~150 Cop 0 0 Cop 0 0

TABLE 6 BFNP GASEOUS EFFLUENT DOSES THIRD UARTER 1975*

Total Body Skin Thyroid Lung GIT Bone Adult mrem) ~me em (mr em) (mr em) (mr em) (mr em)

Submersion 1.20E+00 3.05K+00 1.20E+00 1.20E+00 1.20E+00 1.20E+00 Inhalation 1.37E-02 1.37E-02 1.76E-02 4.46E-O2 1.37E-02 2.21E-03 Ingestion 1.93E-04 1.93E-OI4 1.77E-02 1.93F-,-04 2. 27E-04 1.98E-04 Ground 5.50E-02 6.40E-02 5.50E-02 5.50E-02 5.50E-02 5.50E-02 Total 1.27E+00 3.13E+00 -1.29E+00 1.30E+00 1.27E+00 1.26E+00 Child Inhalation a 7.19E-03 Ingestionb 5.01E-02 Total 5.73E-02 Total Body Skin Thyroid Lung GIT Bone Po ulation (man-rem) (man-rem) (man-rem) (man-rem) (man-rem) ~(mee-rem Submersion 6.58E-01 7.40E+00 6. 58E-01 6.58E-Ol 6.58E-01 6. 58K-01 Inhalation 1.25E-02 1.25E-02 2. 62E-02 1.67E-01 1.25E-02 2~ 79E-03 Ingestion 1.77E-03 1.77E-03 1. 40E-01 1.77E-03 1.66F-03 1.81E-03 Ground 2.27E-01 2.66E-01 2. 27E-01 2.27E-01 2.27E-01 2.27E-01 Total 8.99E-01 7.68F+00 1.05E+00 1.05F+00 8.99E-01 8.90E-01 Average Individual (mrem) 1.43E-03 1.22E-02 1.67E-03 1.68E-03 1.43E-03 1.42E-03

a. Site boundary, south sector, 2500 meters.

b. Real cow location, SSM sector, 4720 meters.

c. Population thyroid dose = 6.71E-02 man-rem based on milk production data.

• - Calculations based on effluent monitoring data and NRC building-wake dispersion model.

TABLE 7 BFNP GASEOUS. EFFLUENT DOSES FOURTH QUARTER 1975*

Total Body Skin Thyroid Lung GIT Bone Adult (mrem) (mr em) (mr em) (mr em) mrem (mr em)

Submersion 1.64E-02 5.86E-02 1.64E-02 1.64E-02 1.64E-02 1.64E-02 Inhalation 2.88E-04 2.88E-04 8. 96F;04 1.77E-03 2. 88F;04 2.60E-04 Ingestion -2.90E-04 2.90E-04 1.96E-02 2.90E-04 4. 03E-04 2.95E-04 Ground 4.56E-03 5.35E-03 4.56E-03 4.56E-03 4.56E-03 4.56E-03 Total 2.15E-02 6.45E-02 4.15E-02 2.30E-02 2.17E-02 2.15E-02 lnhalatiog 1.10F.-02 Ingestion 1.70E-02 Total 2.80E-02 Total Body Skin Thyroid Lung GIT Bone

~Po ulation (man-rem) (man-rem) man-rem ~uan-rem (man-rem) man-rem Submersion 5.56E-03 9.86E-02 5.56E-03 5.56E-03 5.56E-03 5.56E-03 Inhalation 4.52E-04 4.528-04 1.29E-02 4. 18K-03 4.52F.-04 6.49E-04 Ingestion 1.42E-03 1.42E-03 7.92E-02 1.42E-03 1.52E-03 1.44E-03 Ground 1.19E-02 1.39E-02 1.19E-02 ~ 1.19E-02 1.19E-02 1.19E-02 Total 1.93E-02 1. 14E-01 1.10E-01 2.31E-02 1.94E-02 1.95E-02 Average Individual (mrem) 3.08E-05 1.82E-04 ~

1.75E-04 3.68E-05 3.10E-05 3.12E-05

a. Site boundary, NNW sector, 1480 meters.

b. Real cow location, SSW, 4720 meters.

c. Population thyroid dose = 4.02E-02 man-rem based only on milk production data.

• Calculations based on effluent monitoring data and the NRC building-wake dispersion model.

TABLE 8 LI UID EFFLUENT DOSES THIRD UARTER 1975 Bone G.Z. Ttaot ~Th told ~Total Bod Skin I. Water Ingestion A. Hazimum Individual Dose Champion Paper Company <3.4E-04 <3.6E-04 . <6.3E-04 <2.1E-04 <2.1E-04 mrem'-

B; Total Population Dose Tennessee River <2.0E-02 -

<1.8E-02 <1. 7E-02 <1. 3E-02 <1.3E-02 man-rem II. Fish Consumption A. Maximum Individual Dose Wheeler Lake below Browns Ferry <9..4E-03 <3.6E-02 <1.2E-02 <1.1E-02 <1.1E-02 mrem B. Total Population Dose Tennessee River <8.8E-01 <3.3 <1.1 man-rem In-Water Above-Water Shoreline Total Bod Skin ~Total Bod Skin III. Recreation A. Maximum Individual Dose Wheeler Lake below Browns Ferry <5.1E-05 <1.1E-04 <5.0E-05 <1.1E-04 <1.0E-02 '1.2E-02 mrem B. Total Population Dose Tennessee River <1.9E-04 <4.0E-04 <4.9E-04 <1.0E-03 <1.2E-01 <1.4E-Ol man-rem Bone Skin IV. Total Tennessee River Population Dose <l. 0 <3.4 <1.2 <1.2 <1.3 man-rem 'I

TABLE 9 LI UID EFFLUENT DOSES FOURTH OUARTER 1975 Bone G.I. Tract ~Th roid ~Total Bod Skin I. Mater Ingestion A. Maximum Individual Dose Champion Paper Company <1.3E-04 <1.5E-04 <2.7E-04 <9.0E-05 <9.0E-05 mrem B. Total Population Dose Tennessee River <7.0E-03 <6.7E-03 <7.5E-03 <4.7E-03 <4.7E-03 man-rem II. Fish Consumption A. Maximum Individual Dose Wheeler Lake Below Browns Ferry <3.5E-03 <9.6E-03 <5.3E-03 <5.0E-03 <5.0E-03 mrem B. Total Population Dose Tennessee River <3.1E-01 <8.3E-01 <4.5E-01 <4.4E-01 <4.4E-Ol man-rem In-Water Above-Mater- Shoreline

~Total Bod Skin ~Total Bod Skin ~Total Bod Skin III. Recreation A. Maximum Individual Dose Wheeler Lake below Browns Ferry <4.7E-06 <1.0E-05 <4.7E-06 <1.0E-05 <8.7E-04 <1.0E-03 mrem B. 'otal Population Dose Tennessee River <1.6E-05 <3.4E-05 <4.1E-05 <8.8E-05 <9.1E-03 <1.1E-02 man-rem Bone G. I. Tract ~Th roid Total Bod Skin IV. Total Tennessee River Population Dose <3.3E-01 <8.5E-01 <4.7E-01 <4.5E-01 '<4.6E-01 man=rem