Text

Offsite Dose Calculation Manual
	ML19274F273
Person / Time
Site:	North Anna
Issue date:	06/28/1979
From:	Hopper D, Kelland J; VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.)
To:	;
Shared Package
ML19274F272	List: ML19274F271; ML19274F273;
References
	NUDOCS 7907090310
	Download: ML19274F273 (74)
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~..

5.?. - CDCi

? age 1 of 3 06-28-79 7IRGINIA ELEC*RIC AND ?CLTR COMPANT NCR"~d ANNA PC*a'ER STATION OFFSITE DCSE CALCUIATION MANUAL U'JITS I AND 2 Fages: 1-3 and OECM 1-9 g%Q -

i b

FOR Reil!EW

. s e

['.

ehe; /dCI REC 2'OfE';D A??ROVAL:

A??RC Fr.3 3T.

w" CHAIi?4a$ STATION NUCLEAR SAFITY AND OPERATING CC1011TTEE DATE:

06-28-79 SAFETY fiELATED 7907090gg,

E.P. - CDCi Page 2 of 3 06-28-79 NOR"".4 A'?NA PCh*ER STATION OFFSITE DOSE C.U C"I.ATION MANUAL

REFERENCES:

NORT*4 ARIA ICENICAL SPECI?!C. CIONS 10 C n PART 20.106 10 C n ?A2T 30.3'.a 10 C n ? ART 50.36a 10 C H PART 50 Appendix I NRC REGULATORY GUIDE 1.21 (REV. 1)

NRC RFGULCORY GUIDE 1.109 (RE7. 1)

NEC REGULA! CRY CUIDE 1.111 (RI7.1)

NCREG 0133 OCTOBER 1973 IMPLEMENTATICN:

The provisions in the North Anna Cffsite Dose Calculation Manual vill be i=ple=ented on approval by the NRC of Raquest for Technical Specification Change No.17, dated March 6,1979 (S.N.402/071178).

H.P.- ODCi Page 3 of 3 06-28-79 NORT.4 ANNA ?C'4ER STA!!ON OF? SITE DOSE CALCL'LCION M.u'UAL INDEX Section No.

Date 1.

Introduction..........................

06-29-79 2.

Liquid Effluent Release Rata................

06-23-79 3.

Gaseous Effluent Release Race................

06-28-79 a.

Liquid Effluent Dese Calculation.............

06-29-79 3.

Gaseous Effluent Dose Calculation............

06-28-79 6.

Liquid Ef fluent Des e Proj ection.............. 06-29-79 7.

Gaseous Effluent Dose Projection.............

06-29-79 3.

Quarterly Dose Assessment....................

06-29-79 9.

Radiation Monitor Se points..................

06-28-74 S

e

~

ii.? - CDCM-1

?1ge 1 of 3 06-2S-79 NOR"3 A'TNA ?C!iER STACON OF7 SITE DOSE CALCUI.ATICN 'd.ANUAL SECTICM 1 II RCDCC !ON Par:

Sub j ect

?22e 1

Purpose 2

2 Scope 2

e 5

A H.?. - ODCM-1 Page 2 of 3 06-23-79 1.

?URPOSE The Offsite Calculation Manual provides the =ethodology and parameters to be used in the calculation of off-site doses due to radioactive liquid and gaseous effluents to assure compliance with the dose limitations of the Technical Specifications. These dose limitations assure :ha::

1) the concentration of radioactive liquid effluents from the site to the unrestricted area will be limited to :ne concentration levels of 10CFR20, Appendix 3, Table II; 2)

he exposures :o any individual from radioactive liquid affluents will not result in doses greater than the design objec:1ves of 10CIR50, Appendix I; 3)

he dose rate at any ci=e at the si:e boundary from radioac:ive gaseous effluents will be lisited to the annual dose limits of 10C7R20 for unrestricted areas; and 1) the exposure to any individtal from radioactive gaseous effluents will not result in doses 3reater than the design objectives of 10C7R50, Aprendix I.

2.

SCOPE The ethodology used :o assure compliance with :he dose limitations described above shall be used to prepare the radioactive liquid and gaseous affluent procedures and reports required by :he Technical Specifications.

The Manual also provides the =echodology and parameters :o be used in the calculation of radioactive liquid and gaseous affluen: =onitoring inst:"=entation alar =/ trip setpoints :o assure co=pliance v.rh the E

4 H.P. - ODCM-1 Page 3 of 3 06-23-79 concen: ration and dose rate li=1:stions of the Technical Specifica: ions.

This =anual does not include the procedur-- - ' for=s required :o docu=en: co=pliance with the surveillance require =ents in the Technical Specifications.

Changes to this =anual shall be reviewed and approved by the Station Nuclear Safety and Operating Co=sittee prior to i=plementation,

Changes :o this =anual shall be sub=1::ed to the Nuclear Regulatory Cc==ission by inclusion in the Semi-Annual Radioactive Effluent Release Report for the period during which :he change was =ade effective.

g S

H. P. - 0001-2 Page 1 of 3 06-23-79 NOR1"3 A.NNA ?O'4ER STATICN O USITE OOSE CALCULATION MANUAL SECTION 2 LICUID EE.UE'T" RE'. EASE RATE Par-Subject Page i

Ma:ci=us Allevable Release Ra:a 2

2 Liquid Effluen Limi:

2 9

H.P. - CDCM-2

? age 2 of 3 06-23-79 1.

MAXOT'd ALLO *4ASLE RELEASE RATE 1.1 The release rate based on =axi=u= allavable Curies per ninute of liquid effluents can be expressed as aximum allowable gallons per =inute (C?M) from turbine bldg. su=os or from the clarifier based on inputs to the clarifier.

1.2 The max 1=us allowable G7M from a release point can be calculated by the follwing:

Dilution tiater. GPM GPM -

uCi/mi t

((5 MFC

) - 1) t

'4here :

MFC; is the maxi =u= permissible concentration, of fsite, of nuclide 1, expressed as uC1/=1 from 10CFR20, Append'1x 3, Table II, Colu=n 2, for radionuclide other than noble gases and 4 x 10~5 uC1/ml for noble gases.

uCi/nl; is the concentrarion of nuclide i in the liquid effluent discharge.

2.

LICUID EFFLUENT L31IT 2.1 The =ax1=us allowable G7M into the clarifier from an individual source is to be calculated assuming a decontamination factor (DF) of 1 for the clarifier package and a -veimus discharge rate of 300 GPM.

A 1

H.P.-0DCM-2 Page 3 of 3 06-23-79 2.

Lt0UID FJM."Dr" LDtI~' (cont) 2.2 The daily concentrations of radioactive materials in licuid vaste to unrestricted area cust meet the following:

> i Volu=e of Waste Discharted + Volume of Dilution Water Volume of Waste Discharged x E UC1/ml,.

M?Ca-where uCi/=l and MFC are as previcusly described.

t g

9 m+,

9 e

4 1

H.P. - CDCM-3 Page 1 of 4 06-23-79 NCR*H AN'IA POLT:.R STATION OF751TE DOSE CALC"I_CION MA' CAL SEC* ION 3 CASECUS EFE.UE';T RELF_ASE ?.CE Part Subiect Page 1

Noble Gases Release Rate 2

2 Radiciodines and Particulates 2

Release Rate 3

Release Rate Considerations 4

S

H. P. - OD C:!- 3 Fage 2 of 4 06-23-79 1.

NO3LE GASES RELEASE R.CE The dose este limit for noble gases shall be deter =ined to be within the Technical Specification li=i: by li=i:ing :he release race to the lessor of.

IQtt=

500

=re=/yr EKt t (X/Q) or 24 04 3000 mre=/vr

=

E {L

1 EM.<} { X/Q}

4-where the ter:s are defined below.

2.

RADIGICDINES AND PART!CL*L.CES RELEASE 2 ATE The dose rate 11:10 for radiciodines and radioactive sacerials in particulate form wi:h half-lives greater than eight days and ::1:ius shall be determined :o be within the Tec'.nical Specification limi:

by limiting the release rate to:

I, Q4 1500 = rem /vr e

_t. t where:

It=

The total body dose factor due to ga==a emissions for each identifi,ed noble gas radionuclide, in =re=/yr per uCi/s from Table 3.1.

Lt=

The skin dose factor due :o beta amissions for each identified 3

noble gas radionuclide, in cres/yr per uC1/m from Table 3.1.

t

H.P. - ODCF.-3 Page 3 of i 06-23-79 2.

RADIO!0 DINES AND ?ARTIC'UTES REI. EASE RATI (cone)

M.i = The air dose factor due to ga=na e=issions for each identified 3

noble gas radionuclide, in srad/yr per 'Ci/m from Table 3.1 (unit conversion constant of 1.1 nre=/ rad converts air dose to skin dose).

Pt=

The dose parameter for radienuclides other than noble gases for the inhala: ion pathway, in are=/yr per aci/=' and for the food and ground plane pathways in s- ( res/yr) per LC1/sec from Table 3-2. The dose fae: ors are based on the cri:ical individual orgar. and most restrictive age group (child or indan:).

Qi= The release rate of radionuclide,1, in gaseous effluent from all release points at the site. in uCi/sec.

(X/Q)= The highest calcula:ed annual average relative concentration for any area at or beyond :he unrestricted area boundary.

3 (X/Q) = 3.4 x 10-7 sec/m for process vent releases and 1.2x10-3 sec/m3 for ventilacion vent releases. The location is 0.33 21. ESE.

W=

The highest calculated annual average dispersion parameter for esti=ating the dose to an individual at :he controlling location:

W = 1.1x10-6 seef33, for the inhalacion pathway.

W = 3.0x10-9 meter -2, for the food and ground plane pa:hways.

The location is2.02 siles N of the station.

S

2.2. - CDC1-3 Page 4 of 4 06-23-79 3.

RELEASE R.CE CONSIOE'..TIONS The scst conseriative release rate calculated in parts 1 and 2 shall centrol the release rate for a single release point.

6 e

'4 4

9

e a

A m

t E$

N

-f Ut m.

=

==

e.

em a.=

N m.=

"a m

.1 N

r.=.'.t -.

m,

- C

- C 1

m w

w

=,

,.i

w ;a 6.

.a d

=.O b

L4

a a

w 6

J a

O A

O C N

O O M

O C

r"*

Q M

C.

D e e 3 M=== N om N

<. y

'; 7 7 C

<=

b,

'I k

= h N.====== N -

===. N c=.

e M M

CN oo

=t G to

J 6 C

bg C

Ee

--t m

.e.d smd C

m e e.r e.1

=

.N.

==

'di U

g a

.a U

- 0 6

6.

64

=

aa

==

=

N.=.

e.=.=.

e.; :

.=

N N 1

n

-w e=

.:3

.=

e g

a

?.

".)

7 O.

S.

- A 4 a N 4 4 N 9

O':

1 #

N.

e C O Wi O

Se

-- - -i M

'=1

-- - 3 O O

w.

=== !

E!

~a, e,*

u Ci u

.$4

<C e==

.a m.

y 5l C

b

=

3 N..

.e aJ U

Y!

.2

<=m

'A

n

.L s.J

.=*

c=

m, m e m N N N.

N w

e.a

s.,

4 m.

.m.

=

C a.=c j

== -.

3

=

'3' W

2 s.

k.J 64 a 6 fa w W W W J

3

g I

O e

==C.N.

3 4 9:"

C a-4 N "

.d 4,.

O P'**

M C

M.

O.

N.

s.3

^

a

.s.

e t

J"

==*

h

.=

=

m.

O N== N *==

f=*.

N s

e=

e N E

-==

E eM 4$

to l>

.1

J J

El

3

=

C

'--i

==

w B,

.'s.

e b6 6

gl 6

N.

4 w

u m

v; o

C' s.

Cl

%C e

i h

7w b

4 g

6 M - M e e e - N N M M M M M b

C O C

CQ 4 C.

O C C C C C.

C C C C C C C C C 4

O

d La.

=

t

- - = =

= = = = = = =

3 M

b.

W bs iJ LJ W LJ L.J 6J W J W 6&

E.a W W tA C

h 4

== N N

O Q d

= c N

-= N m *='"

6.N 4

4 e.

e.

o. - e c - = =- = =.

m

.a O c E!

., c HO at N --== 4.-.=

3 N N M - - :lll C y-3 Et

" M a

=='t U@

vi u, he C.

U l*: 4 U

I Q

.g

==.

l.,

l 61 C U

==t 3

3 2

E 3

a-64

=

3 y P

e"*

O

-. :c

. A

= & O m

ea== = A "O

G

==

=

e'

- ==

e==

o o.

c = = :: = m

- - e "t

a i

e i

e

3 b

a v

U U

u 4 4 t

e

== %

=l u w u :

u u w n n n n n n n <

t 4

TABLE 3.2 3

V..,,.

w,.,a

..sJ, w...u.

w,,

g NCRTH ANNA ?!. ANT 2

o Inhalation]

C.cund Flade Cow Mitk Cca* Milk Iso:cpe I

i I

.aa, s

a

-. : s-,. >-,

2.,

.J. 3.

f..:..

aa.

r l

.9. s,.- ( 3 )

.t. :v s..t ei 3 ;-

e

?.in,5i

'."Cis'

'.*9(9) 3.39(7)

.63(6; I

i.

4-,s-t:)

.2,-,3,

. ;(3,,

....,s.,

a

-e s,

u,.

a,\\..)

3.

O (, /

,c.0/

,c.4 l

.--,,,/,,

s.-

v-a.<

g...e. :,)

..-J(7) 8 4. s '.

4,

,g -e.e.

.e

, -1.

g I

C l

". %' t

4.. ;*t ( s,,

4.. 7 0, (

I. O,

f. t.'

-..., s 0, )

I gi o,

...es qi-a,-an

..r.<->

n

..-u

.Sof,

..:.tri I

e.CO\\A.,-,,e-g g

i

-r..,

.. i t,. g

$.a-f,1

c. qq 0

.Di*f 6.

/ \\lV)

- JJ\\7/

s

^

a*w, S. s,4 ( 6.' 1,

. 4 f

Cr-Q, A

...Q, ( *i )

.i. S.i (.i.e )

I s

I e-

,1

-<r#,

.*,.<r,,

l L.s t,0) 2.43\\3) 3.)n r t r Y=s.

1s 4

J\\3)

-ss.

. tCli 3. 3 (.c,,,

.. o..n,,

-2,.<

.,,(:.)

N':-95 a.79(5) 1.95(S) 2.06(3) 2.23(7)

Ru-103 5.52(5) 1.55(3) 1.05(5) 1.27(2)

Ru-106 1.16(7) 2.99/3)

1. a(6) 1.73(3)

Ag-11C.- 3.67(6) 3.14(9) 1.26(10) 1.75(9)

Cc-115m Sn-123

~

Sn-12G S'c-124 Sb-123 Te-127-.l 1.31(6 )

1.13(5) 1.00(9) 1.22(3)

Te-129mt L.63(6) 2.36(7) 1.40(9) 1.63(3) us-o-e.-;(s)

.,,,fo3 3.., ( vs s

-. s-, (.. ;

Cs-136 1.35(5) 2.13(3) 5.76(9) 1.73(10)

C4-137 6.!2(5)

!.15(?)

6.02(10) 1.31(11)

Sa-l30 1.60(6) 2.94(7) 2.4L(3) 2.39(7)

C4-141 5.17(5) 1.93(7) 1.37(7) 1.65(6)

Ce-144 9.32(6) 5.34(7) 1.33(3) 1.60(7) 1-131 1.43(7) 2.46(7) 1.06('2) 1.27(12)

I-133 3.56(6) 3.54(6) 9.30(9) 1.13(10)

6.47(2) 6.47 x 10

=

=res/yr per uCi/s "s"(crem/yr per uC1/see Calculaced acccrding :c huREG 0133.Ccceber 1978

H.P. - CDCM-4 Page 1 of 3 06-28-79 NCRTH ANNA PCWER STATION OF7 SITE OOSE CALC"T ATION l'M"JAL SEC* ION 4 LIOCID EF713'T" OOSE CALC"T CIONS Par:

Subiect

?2:e 1

Liquid Effluena Dose Calculation 2

2 Quartarly Composit Analyses 3

4

E.?.- CDCM-e

? age 2 of 3 06-23-79

_. m.1

..CL,,.-

r.'

,.,C c:.

-1 u.v 1

Ocsa con:ri.ution shall be :21:212:ed" for all ::di:nuclides iden:ified in liquid effluen:s released : unrestric:ed areas based en the f a11 wing e:cpressi:ns :

D. =

tA..

_:3. C4

_:4 t 4

1=1 where:

he :unula:i're dose :: dese ::==i::en: :: :he :::al body or an T

=

..,2

...s u.....__s,.,<a. __

e.-

ue. 3....u...

.,.1-

. a -. a. e a., a

.-- r n

.s..

4, L= 1

.,...s e., e., g u. c.:.u.e 1:h

.a

.., e,. a.,5 cy e.. m. < - u. -- <. 1.a.~.

.. =* 1 e averaged f:: all liquid releases, in neurs.

C e.., = the aterage cencen::a:ian of radianuclide i in undilu:ed liquid

..44..,e.. a.. %u.'.g __ a

,e..a.d.'.c-3..

an7.'.' u.d.".. =..' 2. 2s e. -

uC1/nl.

s,

2. e.,.. a.t.,.. a.,.21.. c.

4.,.,. i,~,,,. a..<.,-. g./

..e..a

,ue

.e,1.

e..

4 liquid efflues: ralaasa. Defined as :he ratica of de - - - -

undilu:ed liquid vasca ficw during release :: :he rie: age ficw frem the si:e discht. ge 3::ue:ure :o unrestrie:ed receiring vaters.

.L..

= de si:e rela:2d ingestien dose cr~._ i:nen: fac::: On de :c:al body or any organ for each identified principal gan=a and be:a emi::e is nre:-n1 per hr-uci.

... e (1.of',,.

.'13 4.)

.s t-1 041:ula:ed in 2c:criance vi:h legulat:r-au:.d e '.. '.09 ( 7.e r. '.)

4

E.P.-0DCM-4 Page 3 of 3 06-23-79 1.

LICUID EFFi_UE';"' DOSE CALCL*LCICNS(cont) where:

D., = Dilution factor from the near field area to the potable wa:er intake for adu*.: water consu=ption.

3F = 31oaccu=ulation factor for radionuclide, i, in fish, pCi/kg, i

per pCi/1, from Table 4.1.

DF,=

Dose conversion factor for radionuclide, i, for adul:s in prs-selec:ec organ,

, in are=/pC1, from Table 4.2.

730= Adult, water consunption. in kg/yr.

21 = Adult, fish consumption, in kg/yr.

2.

OUARTERLY "CMPOSITE ANALYSES For radionuclides not de:er=ined in each batch or weekly co= psi:e, the dose contribution to the curren calendar quarter cu=ulative sation clay be approxi=ated by assuming an average conthly concentration based on the previous son:hly or quarterly composite analyses. However, for reporting purposes, the calculated dose contribution shall be based on the actual composite analyses.

e e

k f

ABL.e 4.1 v.

=. 3 ;.,.. g

..g

,; ;:g?w.,,;

?.-.,g;..?...

=;

=...

s..

.A.

k-.g.g.

. g r.

...t,

..e u...a.:?

- fm.

..33--

n..ve. -

. w.

ne.t.

r-.a c e.s-r. n -e.

.4 9.CE-01 9.CE.01 9.0E.01 9.3E-01 t

0 1.fE ~3 9.1E 03 1.3E C3 1.4E 03

.s

.e.

. 1:..

...e.

g.,.

.e.

..2....

, s.

YQ

. y

.6 6

...J C2T""

.v..

.4 s.

4..:..

.=

bE M

..e....

3...:.

g

...: a

s. a.,

.i......i g.

A s

g

.f g.

1

=..;..

...c..a M..

3.3

..s

. *]

g e4'

'WM

...-e 7...,2

3. e 4 1....

"O

r...

...1

-.. e.1 l.==

w,l

1. e.1

,..w

... 1 1

. e.7 3..-;.g

<.a.e.

3 7.Eia.83

.u

.e.

n.,.

,.E 2

7..

n..

s.

'.2

..'.?.

- .s r.1 N

ryi...

a.1

=..?.

j..=.. t.

.n

..i se

..c.,

~

.a

.....i

.4

...4 3

..-e.,. 3

.. e.,

.,.7

. er.1

... 3

...r...

c...

1.

0

.... 3

... 1 3.

i

R

2..c:. 01 L. E,3

e..ar. 01

.e.

3

... w 10 2.!! *1 1..*E a3 2.!! 01 1.CE 03

, -e..

,. e.

a.,.

..e..,

Table taken f:cm Regulatory Guide 1.109 (Rev. 1)

'"ABI.E.' 2*

240 ! i U 3

!NOIS T !

4 CSE

AC. TO R S 8 0,.1 1CULf5 s y =.. s e.g 3 e..

. e..- r..

.a A *. I ;. :

3CNE e.

4 :1 i.ACY Tay*Ct:

<* NEW

._'.; N :

i -t. '. !

L a

3 NC OATA L.05E-C7 t. *3 E-3 7 1.*5--0?

L.*54-07 1.05E-07 L.055-07 0 14 2.S'E-C6 5.o8E-07 5,485-07 5.etE-07 5.saE-07 5.o8F-07 5.64E-C7 Na 26 L.7 E-06 1.7*E-C6

.7 E-0 6 1.TCE-06 1.7CE-06 1.7 E-C6 1.7*!-C6

~. _ _... _

3 1.135-06 L. *:-05

?. -, E -C o NO gaf.

NC Oa?

NO CATA 2.;?!-05

~4 5;

~;0 0A71 40 217a

2. =o i-C 1 L.515-01 f.5:t-L' 3.53!-01 3.aii-;*

-s 5-70. ara

.5??-to

1. ?::-: ?

afa

.Joi-Ce

-0 0a7

..eCI-05 a...

.. *., o

.a -....

s...-

...s..-.-

.-. 2 4

...o-

.u.

.u a.a..:-. h

i 55 2.?55-C6

'.30.-:o

... ;,.; ?

iC 0171

'.0 04fa

.. s i-C S 1.'*E-03

! 57

.3-i-:s

!-?S 3.

i!-;m NC :sia NO Oaia 2.355-Oc 3.-

!-?!

5s

0 Oafa

?..t--07 L.s?I-16

.0 ;aTA NC Caia NC ;ATA L.

5:-C5

3 NO OaTa O..

? e.. ?2 -; $

.C : ara 10 0471 q ars

.3.;5 et $3 1 305-C6 4.

i!-So

. J t i-.j s NC a?a NC : Ta _ " 0171

1. 4 3 E-4

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

Mi 32 5.22:-07 3.soi-Oh 3.13!-C 3 40 Oaia NC 047s NC afa 1.?4

.L 5-06

.ar-

..33:. n..

3....:..

.s ya....

.w s

s

...c...

, y e.

. e-r. s N 35

.3-i-Ce i.3-E-23 3.1o5-06 7C OATA

. 03E-CS NC Oaia 4.705-Ce

=3

-se.... ;, c... g.. 2. e.., 9........

.. :. n..

y.

2s

..g

?J 93 4C 0a?:

'C Ot*1

.005 1S

'tc ;afa NO Oeia NO

.*a 5.71E-03 as 36 NC 0 74 NO Ca?

5.2!:-C?

C Oa f a 1C Oafa

' "

02?a 6.00E-13 19 95 N' 0171 10 0;TA 2.165-01 NO Ca!-

NC Oa72 NO Cafa

. ? f-e 49 to NC Oafa 2.ili-05 4.335-06 NC Oara NC Oaia NC 017a

..bE-Cs 25 16 NC 0174 s.;Si-C5

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3. 36 E-0 6 NC *afa NC ".afa NC Ca!*

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NC 0471 NC 0a71 NC *afa 2.195-06

s 11 5.o??-Cs

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. 2:-.

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002*'

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0

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Table taken frem Regulatory Guide 1 109 (Rev 1) a, Y

9

H.?.-0DCM-5 Page 1 of 9 06-28-79 NORTH ANNA PC'4ER STATION OFFSITE DOSE CALCULCICN MANUAL SEC"'!ON 5 GASECUS E FLUENT DOSE CALCULCIONS

? art Sub i act

? age

~

1 Gaseous Effluent Air Dose 2

2 Gaseous Effluent Mavd-3 I: dividual Dose e

1

H.P.-0DCM-5 Page 2 of 9 C6-28-79 1.

CASECUS EF71/JL*T AIR 20SE The air dose in unrestricted creas due to noble gases released in gaseous effluents fras the site shall be deter =ined by the following:

For g'--'

radiation:

Dg = 3.17 x 10-3 : M,(X/Q) Qt Fer beta radiation:

Db = 3.17 x 10~3 I,N, (X/Q)

Q,-

where:

D; = Zhe air dose for gs--a radiation in crad.

Ob = The air dose for beta radiation in = rad.

3.17x10-3 = The inverse of the cu=ber of seconds in a year.

Mt=

The air dose factor due to ga==a emissions for each identified noble gas radionuclide, in = rad /yr per uC1/=3 from Table 5.1 Ni=

The air dose factor due to beta e:issions for each identified noble gas radionuclide, in srad/yr per uCi/s from Table 5.1.

(X/Q)= The highest calculated annual average relative concentration for any area at or beyond the unrestricted area boundary.

3 (X7Q) = 3.4x10-7 sec/m for process rent releases and 1.2x10-5 3

sec/m for ventilation 7ent releases.

Qt=

The release of noble gas radionuclide, i, in gaseous affluents "a uC1. Releases shall be cu=ulative over the calendar quarter or year as appropriate.

4 1

H.P.-0DCM-5 Page 3 of 9 06-2S-79 2.

GASEGUS EFFLUE;T M_CIMUM INDIVIDUAL 00SE The dose to an individual from radiciodines, radioactive :sterials in earticulate form and critiu= gaseous effluents released to unrestric:ed araas shall be deter =ined as follows:

D=ax = 3.17 x 10~3 L R, W Q i

vhere:

D=ax= Maxi =um dose to an individual in cre=.

3.17x10-3 = Ihe inverse of the nu=ber of seconds in a year.

Q=

The releases of radioicdines, radioac:ive =&terials in particulate i

form and radionuclides other than noble gases in gaseous effluents, 1, in uC1. Releases shall be cu=ulative over the calendar cuarter or year as appropriate.

W=

The annual average dispersion parameter for esti=ating the dose to an individual a: the con: rolling location.

W = (X/Q) for the inhalation pathway, in sec/= from Table 5.2 and 5.3

~'

W = (D/Q) for the food and ground plane pathways, in seters free Table 5.4 and 5.5.

R=

The dose factor for each iden:ified radionuclide, 1, in s' t

(=res/yr) per uCi/sec or nres/yr per uCi/m.

I 7

Rt=R [X/Q] + RG (D/Q] + RC[D/Q,X/Q]+R{3(D/Q,X/Q]+Rg [D/Q,I/Q]

g where:

I InhalationPathwayFactor,R((X/Q]

r R' [X/Q] = K' (3R)3 (DFAJ)

(3re3/yr per uCi/3 )

i a

where:

6 s' = a ccnstant of unit conversion, 10 pCi/' C1.

1 (3R)a = che breathing rate of the receptor of age group (a), in s'/yr 4

5

R.?.-ODCM-5 Page 4 of 9 06-28-7C 2.

GASEQUS EFFI.UE'C MAXDD! INDIVIDUAL DOSE (cont)

The breathing rates (3R) for :he various age groups are tabulated a

below, as given in Regulatory Guide 1.109. Rev. 1.

Are Grouc (a) 3reathinz Rate (=

/vr)

Infant 1400 Child 3700 Teen 3000 Adult 8000 (DFAs.)a = the =aximu= organ inhalacion dose f actor for the receptor th of tre age group (a) for the i radionuclide, in =res/pC1.

The total body is considered as an organ in the selection of (D FA.) a.

4 Inhalation dose f acects (DFA,)

for the various age groups are given in Tables 5.6, 5.7, 5.3, and 5.9 (taken f rom Regulatory Guide 1.109, Rev.1).

G Ground Plane Pathway Factor, R, (D/Q]

R,G [D/Q] = K'K"(SF) DFG,[(1-e~

i )/l] (s'

= rem /yr per LCi/sec)

'Jhere :

K'=

a constant of uni: conversion, 10 pC1/uC1.

K" = a consrint of uni: conversion, 8760 hr/ year i=

the decay constant for the ith radionuclide, sec'l.

t 3

the exposure ti=e, 4.73 x 10 sec (15 years).

=

th DFGg =the ground plane dose conversion factor for the i radionuclide

(=res/hr per pCi/s,).

SF = the shielding factor (di=ensionless), 0.7 (Regulatory Guide 1.109, Rev. 1).

3round plane dose conversion factors, DFG, are found in Table 5.10.

8

H.F.-0DCM-5 Page 5 of 9 06-28-79 2.

GASECUS EF"'.*,E!!T !!XCMUM DDIV!OUAL OCSE(con:)

Grass-Cow-Milk?athwayFactor,Rf[D/Q]

Q-(Uao)

F (3,g ', )

-r,.

-s,,

C [D/Q] =K'E F (r)(DFL )a R

^

Ai +A

? 8

^ '

8 ^

3 t

g q

Y, Y

s

(=

srem/yr per itCi/sec)

Where:

.s ' = a constant of unit conversion, 10 pCi/.C1.

Qy = the cow's consu=ption race, in k7 'aay (we: weight), 30 (Regulatory Guide 1.109 (Rev.1)).

U,7 = the receptor's silk consu=ption rate for age (a), in liters /yr.

ap(11:ers/yr)-Infan 330 U

Child 330 Taen 400 Adult 310 (Regulatory Guide 1.109(Rev.1))

Y the agricultural productivity by uni: area of pasture feed grass,

=

p in kg/=, 0. 7.

Y=

the agricul: ural produe:1vi:7 by uni area of stored feed, in s

kg/m, 2.0.

F the stable ele =ent transfer coefficients, in days /litar, Table 3.15

=

3 r=

fraction of deposited activity retained on cow's feed grass, r = 1 for radiciodine and : = 0.2 for particula:es (Reg 3 Guide 1.109, Rav.1).

(DFL ), = the organ ingestion dose factor for the ich 1

radionuclide for the receptor in age group (a), in =res/pCi.

See Tables 3.11, 5.12, 5.13,and 5.14.

.s ;

the decav constant for the 1:h radionuclide, in sec-1

=

A, = the decav constant for re= oval of activity on leaf and clan:

surfaces by weathering, 5.73 x 10-7

-1 (corresponding to see a la dav half-life).

e O

H.P.-0DCM-5 Page 6 of 9 06-23-79 2.

GASECUS EFFLUE'* MAXD C1 INDIVI:UAL DOSE (con:)

g=

the ::ansport ti=e fres pasture := cow, :o milk, to receptoe, O

11 sec, 1.73 x 10 (2 days) tg=

the transport ti=e from pasture, :o harvest, to cow, to :llk, 6

to receptor, in sec, 7.78 x 10 (90 days) fraction of the year that the cew is on pasture (di=ensionless),1.0.

f

=

p f=

frac: ion of :he cow feed that is pasture grass while the cow ?_s en s

pasture (dimensienless), 1.0.

E,=

an adj ust=ent fractica vnich accounts for the fraction of radionuclides in elemental form which con:ribute dose for this pathwav. E = 0.5 for radiciodine. E = 1.0 for all others.

The concentration of tri:1us in silk is based on the airborne concentration C

rather than the deposition. Therefore. :he R is based on [X/Q] :

t C

3 R, fX/Q]= K'K"y Q;"ap (DFL,)a[0.75(0.5/H)] (srem/yr per uCi/s )

s-where:

3 K'"c a constant of uni: c:nversion, 10 g=/k g.

H=

absolute hu=1dity of theat=osphere, in gm/s, 3 (Reg. Guide 1.109,Rev.1) 0.75= the fraction of :otal feed that is water.

0.5 = :he ratio of :he specific ac:ivi:7 of the feed grass water :o the at=ospheric water.

M Grass-Caw-Meat ?athway yactor, R't [D/Q]

The integrated concentration in = eat folicws in a similar nanner to

he development for the = ilk pathway, threfore:

H.P.-0DCM-5 Page 7 of 9 06-23-79 2.

GASICUS EFFL"ETT AXDTM INDIVIDUAL DOSE ( ent)

'.S }

Rf(3/Q]=K' F, (r) (DF'_;)a E

2' 3

8

~

A,-

.s,

y f

p a

(n, nres/yr per uC1/sec) where:

F=

the stable ele =ent transfer coefficients, in days /kg, Table 3.15 f

Ua

the receptor's = eat consumption rate for age (a), in kg/yr.

U (kg/yr)

Infat:

O 37 Child 41 Teer 65 Ad'.1:

110 Taken from Regula:ory Guide 1.109(Rev.1) 6 g=

the ::arsport :ise frem pastura :o receptor,1.73x10 see (20 days) 6

-he transport ti=e from crop field to recep or, 7.7Sx10 sec(90 days)

- =

a The concent stion of tricius in seat is based on its airborne concentration rather than :he decosi: ion. Therefore the R',g is based on (X/0):

3 R (X/0] = K'K'"F Qy"ap(DEL )a(0.75(0.5/H)] (=re=/yr per uC1/s )

f 1

where all cer=s are defined above.

V Vegetation ** thway Factor, R,(D/Q]

Thc integrated concentration in vegetation consumed by =an follows the expression developed in the derivation of the silk factor. Man is considered to consu=e two types of vegetation (fresh and stored) that differs only in the time period between harvest and consu=ption, therefore:

e

H.P.-CDCM-5 Page 3 of 9 06-23-79 2.

GASECUS EF"UE'tT MAXI'"1 CDIVIOUAL OCSE (co_nt)

!+

-i -L 3

-A<

g'

'i Rl[D/Q] = K'

,f. ( A,' )- A )

(DFL4)2 lU~ fr r.

i e

-U f ', e l

3 2 -

3 w

l

./

i (n'

nres/yr per uCi/sec) where:

6 K'=

a constant of unit conversion,10 pCi/'aci.

Ch = :he consu=ption ra:e of fresh leafy 7egeta:1on by the receptor in age group (a), in kg/yr.

Uk=(kg/yr) Infant 0

Child 26 Teen 42 Adult 64 S

U=

the consunption rate of stored vegetation by the receptor in age 3

group (a), in kg/yr.

S U = (kg/yr)

Infant 0

a Child 5 20 Teen 620 Adul:

520 ft=

the fraction of the annual intake of fresh leafy vegeta: ion grown locally.

f=

the fraction of the annual in:ake of stored vegetation grown locally.

g

L=

the average :i=e between harvest of leafy vegetation and its consu=ption, in seconds, 3.6 x 10 (1 day)

3=

the average ti=e between harvest of stored vegetation and 1:s

~

consu=ption, in seconds, 5.13 x 10 (60 days) i.y =

the vegetation areal densi:y, in kg/=, 2.0 and all other factors are previously defined.

The concen: ration of ::1:iu: in vege:ation is based on the lirborne concentration rather than the deposition. Therefore, :heRfisbased on [X/Q].

H.P.-0DCM-5 Page 9 of 9 06-28-79 2.

CASECUS EFFLUE'."r MAX'MO! INDIVIDUAL CCSE(cont)

V r

1 R (X/Q] = K'K'" U~f -Ujfg (DFL ), [0.75(0.5 /H)] (mre=/yr per uCi/s").

t t

1d1 :er=s defined previously.

a a

A am.

sl me N.

UI N

a.

.=

.m

-.==

m

.y

<=,

m

.m u.

- O O.

O O O_

O_

O.

O_

O.

O_

O.

O_

C i

J w 3

Tj b.

-.d w

w

'=

4 O O.

=

d.""

4 *.- 4 4 D J a'.

0 e.

N.

M N

O.

O e=

=

ef. U l

'O.

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3 6,

1k

h N

a.

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,=

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d ON O U C2 e es t O

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6.

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i

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P

== N N M M M f"9 M

6

?

C U U

'C d

C C.

C.

C O.

C.

C,.

C.

C C.

C.

G2 13 C.

t4 w

r a'=

M L y w

w w w 6J LJ w w

W w 64 w ta.

6,.N

,I 4

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W N

==

"m "e Y

a M3 4== e N - N f"

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c.

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A m c s

=

4

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o

= v O -

m - - - m.- -

d- %

CO O O 23 03 = 0.- -. -..-.=.-.

e

-e

j e

i i

e e

i e

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i a

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b 6

6 6

y u

9 U

U b

is e C.j M M M :.- M

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M c;

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TAltl.E 5.2 IJosth Amia ISouiss Vent IllSPlJtSIO!! PAltAMETERS (X'/Q) l'OR I.OllG Tl:ItM-i.llXI:I) 1.101)l Iti:1.tEl:3 > 500 IIR/(R OR > 150 IIR/OTit lilstanco to tlic control location in intiet.

c Ii2E 9f E.d5 0,5dg _

1,0-1,5 1, 5 --2, 0 2, 0 _2, 5_

2,5-3,0 3, 0_--;l, 5 3.5-4,0 4.0-4,5 4,5-5,0, l

D

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S.tx10~

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4.7x10~

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til; il.0x10~

5.7x10~

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9.9x10 "

U.3x10

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2.4x10~

2.7x10~

2.4x10 1.9x10~

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7.7x10 1:

6.0x10~

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3.7x10~

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2. lix 10 2.3x10~

1.9x10~

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ML19274F273

Contents

Text

REFERENCES:

=

=

=

= = = = = = =

= = = = = = = = = = = =

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= 0

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ML19274F273

Text

REFERENCES:

=

=

=

= = = = = = =

= = = = = = = = = = = =

- 4,= -

C C =

= = = = cs = = = c: e = c = =

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