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Line 106: Line 106:
by limiting the release rate to:
by limiting the release rate to:
I, Q4  e    1500 = rem /vr
I, Q4  e    1500 = rem /vr
                  -,        ; ',.
_t . t where:
_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.
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.
Line 158: Line 157:
                                                                                                                                                   =      aa    ==        =
                                                                                                                                                   =      aa    ==        =
1 n        .
1 n        .
                         -w
                         -w e
                                                            .                                                      . -                          - - -                    ;,
e
                                                                                                                             - -a g
                                                                                                                             - -a g
:::    ".)  .- >,-. - -                      -
:::    ".)  .- >,-. - -                      -
Line 184: Line 181:
                                                             .=*      c=                                                                                      *    .**
                                                             .=*      c=                                                                                      *    .**
:s.,
:s.,
s.J
s.J 4                  m.
                                                  ;
4                  m.
m,      m e m N N
m,      m e m N N
                                                                                       ,      ,. .          .      .m.
                                                                                       ,      ,. .          .      .m.
Line 240: Line 235:
                                                                                                                                                                         ; :o o.
                                                                                                                                                                         ; :o o.
G
G
                                                                                                                                                                                        ;
                                         -. :c c = = :: = m                                                          - - - ,                            - e                                :
                                         -. :c c = = :: = m                                                          - - - ,                            - e                                :
                                         "t            a      i      .                e    i        e      i      e      i        e              t      e            == %        ':..
                                         "t            a      i      .                e    i        e      i      e      i        e              t      e            == %        ':..
Line 380: Line 374:
               ... s.. v.  ;=. 3 ; . ,.
               ... s.. v.  ;=. 3 ; . ,.
                               .. .          .A. . g            .
                               .. .          .A. . g            .
                                                                    ...;.
                                                                                 ..g    ,;  ;:g?w., ,;
                                                                                 ..g    ,;  ;:g?w., ,;
                                                                                           . ... ..              ?.-.,g;..?...  .
                                                                                           . ... ..              ?.-.,g;..?...  .
Line 392: Line 385:
       .s                                .
       .s                                .
                                                                                                             .      .e.    ..
                                                                                                             .      .e.    ..
                                                                    ...; ..
                                                                                                             . 1: ..                    .. .:. .-    .
                                                                                                             . 1: ..                    .. .:. .-    .
                                            . .:. ..                  ..: ..                              : :: .;                        ..: ..
             .                                    . ..              ......        .                        .... ..                    ...e.        .;
             .                                    . ..              ......        .                        .... ..                    ...e.        .;
                                                                                                                                             ...: .. g. ,.
                                                                                                                                             ...: .. g. ,.
        .                                . .. .                          ... ..                                ..;. . . ,..                        ..
                                                                                                                                       ..2. . ....
                                                                                                                                       ..2. . ....
                                               .e.    ..                  .. ..                                  .. ..                        .        , s.
                                               .e.    ..                  .. ..                                  .. ..                        .        , s.
                                        ; .; .,
                                         . . . .        6
                                         . . . .        6
                                                                     *. y
                                                                     *. y
Line 444: Line 433:
                                                       .4
                                                       .4
                                                                           ...    ...4                      *. .. ...a
                                                                           ...    ...4                      *. .. ...a
                                                                                                                                        . ;; . .
                                                                                                                                         .... .i 3
                                                                                                                                         .... .i 3
         -                                    . .-e.
         -                                    . .-e.
Line 514: Line 502:
                                           .. .r                  ., =. ... ..N O. ......                        . 3:..        .        .
                                           .. .r                  ., =. ... ..N O. ......                        . 3:..        .        .
                                                                                                                                               ....          . . t , .2. .. $
                                                                                                                                               ....          . . t , .2. .. $
    ' *. ;
                     ..)=i-03 4.
                     ..)=i-03 4.
t'e
t'e
Line 593: Line 580:
3          .  .! a f a
3          .  .! a f a
                                                                                                                                                     . ...      ,.!!i-i!
                                                                                                                                                     . ...      ,.!!i-i!
                                                                                                                                                              ..,.;.. .
     . t*7        t .0 3 2-.                                3.0. i-! 5                  '.0 02Ti              *i0        afa          'tr 0171        2.325-25
     . t*7        t .0 3 2-.                                3.0. i-! 5                  '.0 02Ti              *i0        afa          'tr 0171        2.325-25
     ....-        - ==--            '...?  ..2..'. .......................
     ....-        - ==--            '...?  ..2..'. .......................
Line 1,055: Line 1,041:
r o                                                                                                                                                        W t
r o                                                                                                                                                        W t
c              1 E
c              1 E
                                                                                  ;
1
1
: C                                t              V                      W                J W
: C                                t              V                      W                J W
Line 1,077: Line 1,062:
M.              .      N.        ci.          O.      O.        =. =. C.                      T.        N.      A.            .
M.              .      N.        ci.          O.      O.        =. =. C.                      T.        N.      A.            .
M        - - - - - = =
M        - - - - - = =
b
b I                    O
                ;
I                    O
                                                       .O.
                                                       .O.
O
O
Line 1,111: Line 1,094:
b          ''i        T          e"7                    == N                  MM                    T          N N                  =        N .=                N          N C            f            C                                            C                                  ,0          O                                                          O e                  WI
b          ''i        T          e"7                    == N                  MM                    T          N N                  =        N .=                N          N C            f            C                                            C                                  ,0          O                                                          O e                  WI
                                                       .C.      _C        _O          -            _O        _O          _ -                _O        _O        _O        _C        .C.      -          _O c            k 1          .          I          1          1          I          i            i        !        &          1          1        I        I        I          I I                =          0                                  O O = 0                                      = = 0 = O c 0 A            l    Ml                      .        .c          .O                      -                                                                                                        .O.
                                                       .C.      _C        _O          -            _O        _O          _ -                _O        _O        _O        _C        .C.      -          _O c            k 1          .          I          1          1          I          i            i        !        &          1          1        I        I        I          I I                =          0                                  O O = 0                                      = = 0 = O c 0 A            l    Ml                      .        .c          .O                      -                                                                                                        .O.
di            X          X          X            X          X          X          X            X        X        X        X          X          X        X        X          X
di            X          X          X            X          X          X          X            X        X        X        X          X          X        X        X          X l
                .,, ;
l
                                     ~
                                     ~
                                     **1 N
                                     **1 N

Revision as of 04:18, 22 February 2020

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


Text

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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 i

g%Q - b

                                                                                    .s FOR Reil!EW                                                                 -

e . REC 2'OfE';D

                                               . A??ROVAL:     ['. ehe; /dCI 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 t ) - 1)

              '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:

Volu=e of Waste Discharted + Volume of Dilution Water >

                                                                        , i Volume of Waste Discharged x E UC1/ml,.

M?Ca-where uCi/=l tand MFC gare as previcusly described. 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 E4- {L
  • 1
                      .          EM.<} { X/Q}

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 e 1500 = rem /vr _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 noble gas radionuclide, in srad/yr per 'Ci/m3 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. (X/Q) = 3.4 x 10-7 sec/m3 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
                                         .1         N     ***              m.       ===           ==     e.        em     a.=     N m .=                  "a     m m     ,.       r.=.'.t                -

m, - C 1 w w - C -

                                        , .i        -      . - .           - .            .        .       .
                                                                                                                                           =,

b L4 :a a w 6 J a  ; w ;a 6. .a d

                      = .O*             M           O     %        C       "'". r"*   Q       M                O      A       O C            N        O O
                      <. y                          '; 7 7 C                        @             D e e 3 M === N                                         om   N 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 me                                                                                                                                   e.r e.1
                                        -                                                                                                                                 :=
                                      .N.                                                                                                                             ==
                                      'di g                                                                                                                                U a           :.a                                                                                                                               U 6
                      - 0               6.                                                                                                                                 64
                      < .;              e.; :                                             .=             N N               N .=.           e.=.=.-
                                                                                                                                                  =       aa     ==        =

1 n .

                       -w e
                                                                                                                           - -a g
".) .- >,-. - - -
                                                                      .    %        % -%  -       e=       .:3     %
                                                                                                                                           ?.     - -
                                                                                                                                                          .=

1 # N. 7 S.  % - A 4 a N 4 -'! 4 N 9 O': e C O -'; . O. . Wi O Se . - . .- -- - -i M '=1 -- - 3 O O

          ..*                           w.
          === !                          E!
          ~a,                                                                                                                                                          .:

u Ci e,*

          -     !                                                                                                                                                          u
          <                                                                                                                                                               .$4 C                           e==                                                                                                                                    .a m .                                                                                                                                  y C
          =

b 3 5l "

          <,                    .e     N. .
                                       .                                                                                                                                   aJ
       .                      U        Y!                                                                                                                              .2
     <=m  'A                  *n          :.L
                                                           .=*      c=                                                                                      *    .**
s.,

s.J 4 m. m, m e m N N

                                                                                     ,       ,. .           .       .m.

N. N e.a w . .- ,  :> .. . <, C a.=c j == - . - - - .. . = = = 3

     =    '3'                 W           2           s .                            k.J           64          a 6 fa w W W W                                      J 4,.                    O 3          *g          I    O e              '"*,     .%

M 3 4 9:" C a- 4 N " @ .d

          .s.                                         t    *J"              P'**                                    @       C      ==*                           s.3       '"         ^

a h e M. . . ==C.N. O. N. . .=

                               =                           -        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 - w N.

                                        -                                                                                                                                   u 4

m v; o .: C' s.  % - Cl i %C e h 7w b g C O C 4 M - M e e e - N N M M M M M b 6 CQ 4

                                    ===

C. O C- -C= =C C C. C C C C C C C C C 4 O

                                                                                                                                                                                       *d La.                       t                                             = = = = = = = = =                                                                             .
                      -            M      b.         W bs iJ LJ W LJ                               L.J      6J W             J W 6&                E.a     WW               tA    .     *3 4      C          h          4     %         == N             N    O Q d                      = c           N       -= N           m *='"           6 .N HO O c
                               .a       %

E! at N -- == 4 .- .= 4 m

e. e. o. -3 NeN cM -- -=:lll=-C = =.
                                                                                                                                                                           ., c y-         3 Et                                                                                                                               " M           a
                                      *=='t                                                                                                                                              -

U@ *. vi u, he C .  % U l*: 4

                                                                                                                                                                                    . "* U
                                        *:                                                                                                                             IQ              .g
                                        ==.                                                                                                                            l., *               :
                                        -.                                                                                                                             l 61 C           .'.

U *==t 3 3 2 E a- 64 3

                                          =                                                                          P
                                          =

3 y e' . A  %  ::= & O

                                                                                                             ==

m ea e"*==O= A** ==-  % "O e==

                                                                                                                                                                        ; :o o.

G

                                        -. :c c = = :: = m                                                           - - - ,                            - e                                :
                                        "t             a       i       .                e     i        e       i       e      i        e              t       e            == %        ':..
                                          *3          %       b       %        a       %     %       %         v      U      U        U        U     U        U    u       4 4
                                        =l        . u w u :                           u u w n n n n n n n <                                                            t       <

4

TABLE 3.2 3 g V...,, , . . w, .,a

                                                                             ..sJ, w. ..u.
                                                                                   .             ... w,,.- ...-:

NCRTH ANNA ?!. ANT o , 2 Iso:cpe Inhalation] C.cund Flade Cow Mitk Cca* Milk I i I

           .->            '     2.,

a -. : s- ,. >- ,; ..,

                                                                                                                                                     .aa,        ,s      ,
                                                   -                                                                       aa. r      ,

3 ;- .J . 3..* f. .: . .e

        .          -      l     .9. s, .- ( 3 )                          .                                           .t . :v s . .t ei
        ?.in ,5i I
                                '."Cis'                                  '.*9(9)                                     3.39(7)
                                                                                                                                                     .63(6;
         -e s ,       a               4-,s-t:)
                                                                         ;.2,-,3,,                                   ;. ;(3,,                    ....,s.,
i. u ,. . ,.

v- ,c .4 .--,,,/,,

                                                                   ,      , . a,\..)
3. O(,/

s.- ,c.0/ l . a.< - . . .

                 -1.        g . . .e . : ,) ,,,                                 .e
                                                                            . .-J(7) 8 4 . s '.      4,                  ,g -e.e .

g "

         " . %' t
4. . ;*t ( s,',, ,
4. . 7 0, ( ,

I I . O,

                                                                                                                      .            f. t.'
                                                                                                                                                        *C
                                                                                                                                                 -. . . ., s.., 0, )

l-I - - a,-an o, ...es , qi-  :.Sof, gi

                                                                                                                                                  ..:.tri
                             ,   ..r.<->                            n     ..-u                                             -- .,

I *-r.., c.a*w, qq 0 $.a-f,1

                                 - JJ\7/                                 .g . i.Di*f t ,. g                             i
6. / \lV) e.CO\A.,-,,e-g s
                                                                                                                                                                  ^

Cr- Q, As I *

                                  . . .Q, ( *i )                                -                                    .i . S- .i ( .i .e )         S . s4,4 ( 6f .' 1, Y=s. 1s             4  .*,.<r,,

J\3) I l L.s e- t,0),1 , -<r# , 2.43\3) 3.)n-ss. rtr

         -       -2, .<          .
                                 ..   ,,(:.)                               :    ..
                                                                               . tCli 3 . -3 ( .c, ,,              . . o. .n , ,

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
            -..CL, .. .::-  , .-:          r.'   ,.,C c:.    ....
                                                             -1     . u_ .v
                                                                             . m.1 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 :

                                   ; -tA..

D. = .. . _:3. C4 4 _:4 t 1=1 . where: T = :he :unula:i're dose :: dese ::==i::en: :: :he :::al body or an

- . . . ....u...
                        ..,2., .. ..       .: . .s    u.....__s,.,<a. __ e.- ue. 3                 :
                                                                                                     .. ..         .,.1-a -. ra . e a -.-
                                                                                                                                                  ., a n

4,

                            .     .s .. ..               . _.

L= 1

              . , . . .s.. e ., e., g..u. c .: .u.e 1:h                   .a
                                                                                 . ., e ,. a. .,5 cy e... m.              ->.
                                                                                                            . < - u. -- <. 1 ..            .~ 1. e
             . . ,                                        ..              ..                                                           .a =*

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. 4

                     ,ue                      :s ,
                                 .e,1. ..e..a 2 . e . , e.         .  . . a..t ., . . a ., .21. . ..

_ c .. . 4.,. ,. i,~,,,.

                                                                                                                        , . a..<.,-.      g./-

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.
                                                                               .'13 .4.) '.# $
                        .s t-            .   ... e (1.of' ,, .

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

                                                                                     . ABL.e 4.1       f
                                                           =. ..
              ... s.. v.   ;=. 3 ; . ,.
                             .. .           .A. . g             .
                                                                                ..g     ,;   ;:g?w., ,;
                                                                                         . ... ..              ?.-.,g;..?...  .
                                                                                                                                         ;=;

k-.g.g., .. g r. ...t,..e .. ,. . . .

                                                         . . . . . :.%                                                   u...a.:?

n..ve. -

       .                                      : . w.**:      fm. ne.t.      ..33--                                r-.a             c e.s-r. n -e.

t

      .4                                9.CE-01                    9.CE.01                                 9.0E.01                    9.3E-01 0                                 1.fE ~3                    9.1E 03                                 1.3E C3                    1.4E 03
      .s                                .
                                                                                                           .      .e.    ..
                                                                                                           . 1: ..                    .. .:. .-    .
           .                                     . ..              ......         .                        .... ..                    ...e.        .;
                                                                                                                                           ...: .. g. ,.
                                                                                                                                      ..2. . ....
                                              .e.    ..                   .. ..                                   .. ..                         .        , s.
                                        . . . .         6
                                                                   *. y
                                                                                .6                         ;. . .. ... .
                                                                                                                                           ...J   ..        YQ 4..: ..
                                                                        . : . ,..=                         .v..:           .4         :. .   :     s.

C2T""

        ..                                  ..e      ....           ....

3...:. ..

                                                                                                                                                   . bE gM
        ...:                            .. .: a
s. a ., .i....- ...i g.

A . .. s

                                                                          .. .. .,                         .... ..                    ..       ,. ..          g               .
       .f                               ,

g. 1 g

                                                                        . ....,                            =..;.
                                                                                                                                       ...c. .a M. .        .
        ..s                             3.3 - ..     ..             . .   .: .. *]                         ...: ..                     : ** **
                                                                                                                                       ...:       ..       e4'
                                         ...-e. ..:                 7 ..:.. .,2                            3. e 4
                                                                                                                                       . .: .. ..  ..        'WM "O.

1.... r. . . ,.. .; . , ...1 .

                                                                                                                                        - . ... e. .1
        ..                               l.==  .. w,l             , ., .w
                                                                    ..          .,                         1. e.. .1                   :. .: . 1
                                         ;. e                        ,.

1 .. .7 .. 3..-; . .g <.a.e. .3 $, , -

        .u s.
                                          ....e. n.,.                ,
                                                                     ....E .       2                        7 . ..       n..

7.Eia.83

        ..                               : . -'. '.2
                                               .                     :..'.?. '. . '                         '..**.".'                  '.** **.s
                                                                                                                                            ..                r.1
         .
  • ryi... a.1 =..?..
                                                                                 .n
                                                                                 ~                          j . .=.. . . t.            ..c.,
. .i N

se

                                                      .4
                                                                         ...     ...4                       *. .. ...a
                                                                                                                                       .... .i 3
        -                                    . .-e.
                                                 .    ,. 3           ..
                                                                      , .. e .,..                             .,.7.                     ..,
        .,                                . er .1 c...        .
                                                                       .. ... 3                             ...r...
1. : . 0 ...
                                                                           .: .3                             .. . .1                   3.
R 2. .c:. 01 L.. E. ,3 e.
                                                                                                            .      .ar. 01               ... .e. w 3 i

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. .- .ar . . .

A * . I ;. : 3CNE e. 4 :1 i.ACY Tay*Ct: <* NEW L

  • i -t. '. !
                                                                                                                                   ._'.; N :    .-._

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      .as -...-....             ...s..-.-
                                                                  .     .-.. 2      4
                                                                                    .u   .......          ...o-
                                                                                                                      ..     .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 1. 4 3 E-4
   .--                                - - . . _ _ . - . _ = -                                              _ _ _ _        _ " 0171 Mi 32           5.22:-07                 3.soi-Oh            3.13!-C 3 40 Oaia                        NC 047s             NC afa              1.?4 5-06
        . ...       .w    .ar-      .
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s 11 5.o??-Cs '0 017a 2. 2 * !-0 7 .C Oaia NC Oafa 10 *Afa 2.708-05
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   !? 17          1.335-01              1.345-t:              ; . 5 5 E-10              NC 3a7:               5.125 : 90 017A                               1.055-04
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                                                                                                                                             ..    .. .      ..):

i... . 435-0* ...i-:* 4.s;i 1 0 !a". ....i-' .0 247. ..si:-:. 34 ... .

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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. (X7Q) = 3.4x10-7 sec/m3 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= i The releases of radioicdines, radioac:ive =&terials in particulate 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= t The dose factor for each iden:ified radionuclide, 1, in s' (=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 g [D/Q,I/Q] where: I InhalationPathwayFactor,R[[X/Q] r R'i [X/Q] = K' (3R)3 (DFAJ) a (3re3/yr per uCi/3 ) 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 of tre age group (a) for the i th radionuclide, in =res/pC1. The total body is considered as an organ in the selection of 4 (D FA.) a. 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=t the decay constant for the ith radionuclide, sec'l.

= the exposure ti=e, 4.73 x 10 3 sec (15 years).

DFGg =the ground plane dose conversion factor for the ith 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,,

                                                                                    ^          ^ '

RC [D/Q] =K'E Ai +A q 8 ^

  • g F3 (r)(DFLt)a  ? 8 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. Uap(11:ers/yr)-Infan 330 Child 330 Taen 400 Adult 310 (Regulatory Guide 1.109(Rev.1)) , Y = p the agricultural productivity by uni: area of pasture feed grass, in kg/= , 0. 7. Y= s the agricul: ural produe:1vi:7 by uni area of stored feed, in kg/m , 2.0. F = 3 the stable ele =ent transfer coefficients, in days /litar, Table 3.15 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 1 ), = the organ ingestion dose factor for the ich 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 see -1 (corresponding to . 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:)

O g= the ::ansport ti=e fres pasture := cow, :o milk, to receptoe, 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) f = fraction of the year that the cew is on pasture (di=ensionless),1.0. p f=s frac: ion of :he cow feed that is pasture grass while the cow ?_s en 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

        .            s-Q;"ap (DFL,)a[0.75(0.5/H)] (srem/yr per uCi/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)

E 2' Rf(3/Q]=K' A,- F, (r) (DF'_;)a 3 8 ~ '

                                                                  .S  }
                           .s ,  -

y f p a (n, nres/yr per uC1/sec) where: F=f the stable ele =ent transfer coefficients, in days /kg, Table 3.15 Ua

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

U 37 (kg/yr) Infat: O Child 41 Teer 65 Ad'.1: 110 Taken from Regula:ory Guide 1.109(Rev.1) g= the ::arsport :ise frem pastura :o receptor,1.73x106 see (20 days)

      - =    -he transport ti=e from crop field to recep or, 7.7Sx106 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 fQy"ap(DEL 1 )a(0.75(0.5/H)] (=re=/yr per uC1/s ) 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) r.
                                                      !+        -i'i-L    3           -A<* g' i

Rl[D/Q] = K' ,f. ( A ,' )- A ) (DFL4)2 lU~

                                                 -      2 -fr e        -U 3 f ', e            l,
          .                                                                      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=3 the consunption rate of stored vegetation by the receptor in age group (a), in kg/yr. S - U a= (kg/yr) Infant 0 Child 5 20 _. Teen 620 Adul: 520 ft= the fraction of the annual intake of fresh leafy vegeta: ion grown locally. f=g the fraction of the annual in:ake of stored vegetation grown locally.

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~ft -Ujfg (DFL t), [0.75(0.5 /H)] (mre=/yr per uCi/s") . 1d1 :er=s defined previously.

  • a a

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1k *h N a. .- e- N  % ,=  % N = c M

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6 al = w f N 3 W4 -. L ** u,e yl O Cl 6 :J t.c. C4 %o e "J ed b Q - C U G2 13 U C. 'C M = M e e C C

                                                                                          *P    == N N M M M C

f"9 M 6 t4

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d w r C. C. - O. C. C. C. C,. C. C. C. C.  % . a'= M L y w  ; w w w 6J LJ w w

  • W w 64 w ta .

4 h W N == Y a

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