ML20212D941

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Rev 9 to Offsite Dose Calculation Manual. Marked-up Rev 9 to Manual Encl
ML20212D941
Person / Time
Site: Grand Gulf 
Issue date: 08/28/1986
From: Rolonda Jackson, Mckay J, Megan Wright
MIDDLE SOUTH UTILITIES, INC.
To:
Shared Package
ML20212D758 List:
References
PROC-860828, NUDOCS 8703040237
Download: ML20212D941 (16)
v • d • e


Text

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ATTACHMENT IV OFFSITE DOSE CALCULATION MANUAL REVISION NO. 9' E

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-PENV ODCM ATTS - 4 L:

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OFFSITE DOSE CALCULATION MANUAL i

GRAND GULF NUCLEAR. STATION i

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l GRAND GULF, UNIT 1 Rev. 9 - 08/86 J200DCN86081902

_.. ~ - _. ~ _ _,.. ~.. _.. - - _.. _, _ _ _. _

l Revision No. 9 Date 08/86 _

GRAND GULF NUCLEAR STATION OFFSITE DOSE CALCULATION MANUAL SAFETY RELATED EVALUATION APPLICABILITY ENVIRONMENTAL EVALUATION SAFETY EVALUATION

[X] APPLICABLE

[X] APPLICABLE

[ ] NOT APPLICABLE

[ ] NOT APPLICABLE do She 8-2 l

  • E (o Reviewed / Approved:

Supervisor, Envi ntal Services /Ds;.e M,c % h M.2. 8e//

2/[1iirf.

A Reviewed / Approved:

Supervip6r, Radiological St.; vices /Date Reviewed / Approved:

Manager,Radiologicp&EnvironmentalServices/DateAUG 211986 4

/

Reviewed / Approved:

rector, Nuclea Sport /Date

'"~

h Reviewed / Approved: jtliairman, PrahtV9e' fat /fReview Committee /Date U

Rev. 9 - 08/86 GRAND GULF, UNIT 1 i

86081902

fy f

i:'

,j.

.ODCM L

LIST OF EFFECTIW. PAGES-PAGE REV.

PAGE REV.

NO.

1 NO.

.NO.

NO._

+

2.0-22 1

i 9

7 2.0-23 ii 2

~ 2.0-24 6

iii 8

0 2.0 8 iv 2.0-26 7_

6 v

2.0-27 3

vi 2

2.0-28 5

vii 9

2.0-29 3

2.0-30 3

3 0

1,0-1 2.0-31 0

i,0-2 2

0 2.0-32 1.0-3 2

0 2.0-33 1.0-4 1

~0 2.0-34 1.0-5 9

8

.2.0-35 1.0-6 1

8 2.0-35a 1.0-7 5

8 i

2.0-36 1.0-8 8

2.0-37 8

1.0-9 2

1.0-10 0

6 3.0-1 1.0 0 6-t 3.0-2 t

1.0-12 0

3.0-3 7

1.0-13 2

3.0-3a 7

1.0-14 1

6 3.0-3b 1.0-15 8

6 3.0-4 1.0-16 8

l 3.0-5 5

3.0-6 5

2.0-1 5

3.0-6a 5

2.0-2 5

3.0-6b 5

l 2

6 2.0 3.0-6c 2.0-4 6

2.0-5 6

3.0-7 3

1 2.0-6 0

3.0-8 3.0-9 3

2.0-7 5

l 6

3.0-10 5

l

-2.0-8 3.0-11 5

2.0-9 6

l 2.0-10 5

2.0-10a 8

l4-2.0-11 1

2.0-12 1

2.0-13 2

2.0-14 1

2.0-15 2

2.0-16 2

2.0-17 1

2.0-18 2

(

2.0-19 1

1 l

2.0-20 2.0-21 2

Rev. 9 - 08/86 GRAND GULF, UNIT 1 vii

-J200DCM86081902

p.

P 9-Thus, if instrumentation indicates the dilution flow rate falls. ~

45

^

below the assumed flow rate of 90 percent of the actual dilution

.t q-

. flow, or-if the waste tank effluent flow rate exceeds-90 percent h

9 of the calculated maximum vaste tank effluent flow rate, t e i:c

-release'is' terminated (manually or automatically).

The radioactivity monitor setpoint may now be specified. based on

-Step 5) the values of IC, F, and f which were specified to provide g

' compliance with the limits of 10CFR20, Appendix B, Table.II, The menitor response is'primarily to. gamma radiation;

]',

Column 2.

therefore, the actual setpoint is based on I C. The setpoint 8 8

- fi concentration, C,is determined as follows:

Id g (uCi/al)

I C C

=

(7) a g

fa

~l where f, is the actual.(or maximum expected) waste tank effluent The value of C,(uCi/ml) is w.ed to determine the flow rate.

(

monitor.setpoint (CPM) frcm the calibration curve of Figure 1.0-1.

i The setpoint contains a factor of conservatism, even if the NOTE:

calculated maximum waste tank flow rate is attainable, since the l

calculeted rate contains the safety factor margin, waste taak In effluent flow rate margin, and the dilution flow rate margin.

practice, the actual waste tank effluent flow rate normally is many, times less than the calculated tank flow rate, thus providing an additional conservatism during release.

l l

GRAND GULF, UNIT 1 Rev. 9 - 08/86 1.0-5

)

l

'J200DCM86081902

"**~*"'"*=e---avg.,_

_d L

1 s;

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^

ATTACHMENT V!

t

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4

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^' 0FFSITE DOSE CALCULATION MANUAL

~

REVISION NO.'9.- MARKUP h.

k n

b s

. PENV ODCM ATTS -.5

r f-d the waste tank effluent flow setpoint as measured at the radiation sonitor 1ccation, in volume per unit time, but

' ~

i in the sane units as F, below.

.m the

= the dilution water flow setpoint as smasured prior to F

release point, in. volume per mit time.

At Grand Gulf Unit 1, the available dilution water flaw (F).

should be constant for a given release, and the wasta tank ficw (f) and sanitor setpoint (c) are,, set to meet the condition of equation The method by dich this 1 for a given effluent ccmcentration, C.

is accorplished is as follows:

The isotopic concentration for a waste tank to be released is Stap 1) ebtained frm the se of the ---1M wwd. rations as detar mined by the analysis required in the RErs Table 4.11.1.rl.1-1:

(2)

C

=

C

+

C, +

C, + Cg g

9

+C f where:

,L.

j the sun of concentrations C, of each naasured

{C

=

gama emittar observed by gama-ray spectroscopy of 9

_ j[

gross the waste sangle.

f concentratidc*falphaemittersin e

a 4

SC, the

=

liquid waste as sensured in the acnthly mita i

sample.

the suasured wwtratiens of Sr-89 and Sr-90 in

[c,

=

liquid waste as observed in the quartarly acr.posita sanple.

/(

t Dev. 2 - 5/84 GMC GET, UhTI 1 1.0-2 n

I!

~

I the sma a ed concen eatim of 5 3 in liquid wasta as

(

C

=

-j, 1

g detezzcined fra analysis of the sonthly =,-site 1-g.

.g

[

4 y

be sanple.

y_

l j y (3

.She C, term will be included in the analysis of each vasta u

m tank batch to be reina Ar terms for alpha, stror}tims,#

- as<

A l i-3, J o3 u s a[ tritih be included if analysis of zanctor water 3

S 5 (k

,ex 4j

, QJ the presence of these isotopes.

the inmasured radieclida can'omntratices are used to calculat gL stap 2)-

a Dilution Factor, D.F., which is the ratio of total dilutien l3 0

.3 L flow rate to wasta tank effluent flow rata required to assure -

b iu-3 d

~

that the limiting concentration of 10CFR20, Appendix B, Table

=J io g 2p II, Colum 2 are net at the point of discharge.

l a e u

s,2 "g

l c

l

+ MPC f

f f

[

D.F.

1 (3) u I

(7

/

+[(.

Ct'[

C, C,

C e

t "a

(,

s t

and c Where:

f C, C,, C,, Mc[ naasured(ocacentrations as C

=

Terns C,, C,,MC)will be f

9 defined in Step 1.

and MPC

{-

  • j included i' the cal M atien as appropriata.

f t

r mC,,pl C,,.sermCjm umiting c=c=ntra-sc -

i tions of the appropriate radianuclide frtzn 10CFR20, For dissolved or i

Appendix B, Table II, Colm n 2.

l l

entrained noble gases, the concentration shall be limited l

to 2. 5-4 UCi/mi total activity.

s 1

Pev. 2 - 5/84 GRAND GUIF, UNIT 1 1.0-3

=.~

l Thus, if instrumentation indicates the dilution flow rate falls

-below the assumed flow rate of 90 percent of the actual dilution flow, or-if the waste tank effluent flow rate exceeds 90 percent of the calculated maxiraum waste tank effluent' flow rate, the' g

release is terminated (manually or automatically). ~

The' radioactivity monitor setpoint may now be specified based on' i

Step 5)-

the values of IC, F, and'f which were specified to provide 3g compliance with the. limits of 10CFR20, Appendix B, Table II, g

The monitor response is primarily to gamma radiation; Column 2.

therefore, the actual setpoint is based on I C.

The setpoint 8 8 l

concentration, C,it determined as follows:

8 (uCi/ml)

C

=

I C (7) 8 f

a t

where f,'is the actual (or maximum expected) waste tank effluent i

The value of C,(uci/ml) is used to determine the flow rate.

2 monitor setpoint (CPM) from [ calibration curve [ igure 1.0-1.

imilarto)

The setpoint contains a factor of conservatism, even if the NOTE:

calculated maximum waste tank flow rate is attainable, since the l

calculated rate contains the safety factor margin, waste tank In effluent flow rate margin, and the dilution flow rate margin.

l.

practice, the actual waste tank effluent flow rate normally is 4

many times less than the calculated tank flow rate, thus providing an additional' conservatism during release.

4 1

GRAND.GU1I,. UNIT 1 Rev. 9 - 08/86 1.0-5 J200DCM86081902

,~

[

Example

}]

_L calibratica curvo fcr Liquid Efflusst Moniter Figura'1.0-lj 10-2. _-- --

...3.,,..

r

_r.

.. t.... ;..,,m.t.. p...-

_./

s

.,,,,g.,_.

f-

.. a=3 p, wee, -

.f

.v.,e...

w..

3..

s.-

_..... w a.,,,,=...,.....z. ; 4 1. n,__.3

_;2

....=...,.;,.,.

- - T # 3 * ;" I. -~ =l_'"r. n* '.-- O--A id d E.; ~~~~ '"l2 M.

-. e... s -.. -

. t r....

-u - ~

-~

w. ;. 1. a
  • "'3--

ie=-. -

~~

104 : #" ' ' ' '

f 1

1.n. n.; f_wtw_

.af.

4

. rt.f. 2.s r

.e

.c

, ; ;..q....J...s 4 H. 6 R g,.....-

r-

- c.

i.-l.

e a

i f-r

.t_

..I m w.-:

, 1

_ x - s 2.m.o.; 3 m.g.oseum.

i.-es.. s./ - -*. Am 1 ;

asse u

_6 s a-. t m."MFr-;- t rur/.F 1.r

  • !* 'i8U.f. J 't. ? *i if f N-fil "I'W.~r

_ ~I J' # ~4'3 Ji#-"$.% *. ! 1

. v. s.;.L.

II." '

[...,.

a.

-~

-J.:.:=

=.s.=.-..T.

~

f.;;ry "

  • i e.

~Y... -2.- c.p.*.,A. z:====s.

L

- -. m---

u.- - -:. ;, :..: -l. _.,._

u 3...

py.

,.r gg,,s,

% se..

..... ens.

..e-

.ne e ame.e s e -

....-.=..og.

^

. ibm 4 -. -.

c - ws.

mas 1-

-s aa ep spo sP.- 4e.,.aus. b.-. gab.amr Nw g -- 3. owe -,s _

,.m 4---

ss. C..84 C.~

'. W-Y"F5Y -* * *. int - 7 '. F-

..e

,s

.s 3.

e n.i 88 ' *

  • I. IN.
  • Mr*L.iW*l:

G

.m....s..

. r

a.... -

6..

... e

-w m _ w o.s / sawum... er m... e.

5...s M.

..e.

es.

--?

_m.

k l., %_

ac.... ur e --..

ar.

-a.a g

=

1

-.,, s. n==. _.. cm.

=

.x a.

~

-. i..

=

A e-

  • V-J t

.s.,

.f

..-.--e...

A

.f.....

w.u.

-.- ma

.-n..>p w..

.a

.1.....,

.... -:w,,.+ -..,. pga.

, m....,

?Ws'Efr n..-5:pgsa?mE~..

ar.-e c.

e

.f.,

G - __

.:

  • 4-%2 '.Gr:M i : a etf.. l.L -J.w,'.EA. r

. ;c. :.

... _.,V l.

.v

.__-......_..v.-...,,.h A. :r

  • m. m.*+=s.>me-M a.-.

e f._.....

~

v...v w.ans= wi. e m....

...,_c

_: r.r =J * % '. I ?'ddast--

w waa m.

.v :-s--s :

r

- - W-- ei=E5 E 'C -

.8 =.:; 3.

= ~

_---:=_-. -

[gw.ap.-=my.=_,..

c h.*. '.u-"T t- -

._..=:r.

m:= _.- ~._-...._ :

_ 7. 3. w-~- -.

=_4

-_ _- = =_ -

- -f - -..

,3

-.y _ - -_

r

.=1

=.

. w..... n._

.w.. u. _.w ~,.,....

_sm

.3 n...

s 10-6_,,,,

.-. v......,._.

.r

.w -:... ~.n no.

-fswes.m -~am'n r.n c c... w m.~- s?'8.BGEE-- ' '

n -; V F**' _..

- r-~ =-eeumr--

=e w: s A su-vare r; v.-r.rmvr.L c.s.X u _ < -

~

M 24 ~~EiniD. :.=FmL'"ib,.6sE3 ="E~ F4.@. 8* E.T

C.~. %. *.P.7.B9,6,. u*.u.._.~~~.m : w -m

... u.-.r. -x 1. x w w. _ - '-

T

.w..-

_e -

-- m m om=e-C~rw 4 -;a.*.m i.w _v,. /..tr.n e m..---

=..r 'ggym.~ em-F.r := p. -

48

- w _ w.,

nu ric=r-Y N.;. D r _- *a- ~_C.

y. n.

w.

g s

._ sm z p. 5 w-.

4.,.,,,.q ~. - --
.=.

.i.

JE __

r.v_ian. a__r.o. y,.

_-.u_-g. ' --

.-7 m._.

--.us z:m..,:p._

m __ _-.;-.+

--z

.. W g. t

.==..-m==>r

_ f,,_ a.-. -

10-1.

..= _=..-

.-,, _. _.... ~,.

2.

~...

n m,

-=

- - - = ~ - +

w

* dyg g-r # M k g )-

10'

= = -. -

m.a..aw-

=

_ = ~

a-r

=-m.-u.

-y g--

3 go.g 3

10

10 2

10 1

10 10 Count Rate (Counts par Minute) kV-1 1.0-6 l

Crand Gulf, Unit 1 e

4 TABLE 2.2-3

~

CONTROLLING RECEPTORS, LOCATIONS, AND PATHWAYS Origin Sector (Meters)

    • Miles Pathway Ane Grous, (for info only)-.

Distance l

l Vegetation (A) N,,

1481 0.92 A4 ult

- :--I' garden (5) ENE 1207 0.75 Vegetation.

Teenagar

- garden Vegetation Teenager garden.

" - =

(C) NE 1062 0.66 Ir' 1lrs' ri_z:

_* 12' Child

.~

(D) ENE 4300 2.69-Inha1/ Gad 161ane -Ee6esem=

- residence

-(E) E 982 0.61 Inha1/ God Plane, Adult

- residence (F) ESI 7000 4.38 Inha1/ God Plane Adult

- residence Child (G) SE 3100 1.94 Inha1/ God Plane h

- residence (H) SSE 1800 1.13 Inha1/ God Plane Adult

- residence (J) S 805 0.50 Vegetation Child

- hypothetical

  • 3734 2.33 (E) SSW -46eGE

-ib 488-Vegetation Child

- garden (L) SW 1432 0.90 Inha1/ God Plane Adult

- residence-(M) WSW 8047 5.00 Cow / Milk Infant

- hypothetical (N) W 8047 5.00 Cow / Milk Infant

- hypothetical 7680

-4.80 Vegetation garden i

Child (P) WNW 46664.

(Q) NW 8047 5.00 Cov/ Milk Infant

- hypothetical (R) NNW 1207 0.75 Vegetation Child

- hypothetical

  • 6 c

Tablebasedon198[LandUseCensus These locations represent MP&L gardens located'inside the site boundary.

4

    • Distances shown are ectual mileage in each sector.

i t

. k GRAND GUII, UNIT 1 2.0-23 Rev. 7 - 6/86 J36PMI86063001 - 6

~.,e.,.__,,.,___,...,-,,..,--..,,~,..,,...,,,,_,_w

-,.__,,r,

,-_,,,,,...._,..m,.

,,,m.,

,-,,,_.m.-,~

,-,,e

e 2.3 Meteorological Model 2.3.1 The atmospheric dispersion for gaseous releases may be calculated using a ground-level, wake-split form of the straight line flow model.

3 I/Q. =

atmospheric dispersion (sec/m )

2.03 6 k ru I

Where, distance (a) from release point to location of r

s.

interest plume' depletion factor at distance r from

~

6

=

Figure 2.3-1.

wind speed at ground level (m/sec) u

=

open terrain recirculation factor at distance k

=

i r, from page 2.0-34 the lesser of (cz + b_2) % or 43o I

=

Where, vertic1[standarddeviation(m)oftheplumeat o

=

distance r for ground-level relegses under the stability category indicated by T, from Figure 2.3-2.

i temperature differential with vertical separation T

=

(*K/100m)

{

height of the reactor building = 53.3m.

b

=

L GRAND GUII, UNIT 1 2.0-24 Rev. 6 o/85 J200DCM850829

TABLE 2.3-1 f

ATHOSPHERIC DISPERSION PARAMETERS

  • TOR TECHNICAL 4.11.2.1.1. 4.11.2.2. 4.11.2.3. 4.11.2.5.1_

SPECIFICATIONS s

SECTOR

    • MILES Q

'(A) N 0.92 1.333 x 10-8 5.485 x 10-'

(B) NNE 0.75 1.129 x 10-8 5.298 x 10-'

(

(C) NE O.66 9.373 x 10-7.,,,

5.821 x 10-'

(D) ENE 2.69 7.358 x 10-s 4.341 x 10-10 (E) E 0.61' 8.618 x 10-7 5.135 x 10-'

(F) ESE 4.38 3.206 x 10-s 1.824 x 10-10 (G) SE 1.94 2.628 x 10-7 1.474 x 10-'

(H) SSE 1.13 7.347 x 10-7 3.587 x 10-'

(J) 5 0.50 4.057 x 10-8 1.408 x 10-s j

4 2.653 x 10-8 4.463 x 10-'

~

(L) SV 0.90 (M) WSW 5.00 3.931 x 10-7 3.177 x 10-10 (N) W 5.00 4.259 x 10-7 3.746 x 10-10 4.80 (P) WNW 4=63.a.

3.164 x 10-7 3.739 x 10-10 (Q) NW 5.00 1.584 x 10-7 2.733 x 10-10 (R) NNW 0.75 2.199 x 10-s 7.650 x 10-8 Grand Gulf Nuclear Station, Final Environmental Report, Table

Reference:

6.1.26, 6.1.28, 6.1.29 and ODCM Table 2.2-3.

In those cases where X/Q Distances shown are actual miles in each sector.

and D/Q were not available from FER Table 6."1.26, they were taken from FER Tables 6.1.28 and 6.1.29 using the closest distauce interval to the plant.

_______L s

-10 4.022 x 10"I 8.232 x 10 (K) SSW 2.33

_=-

=

z,__

(

Rev. 7 - 6/86 GRAND GULF, UNIT 1 2.0-26 J36PMI86063001 - 7

2.6 Anndal Dose Commitment

  • For the purpose of implementing Technical Specification 3.11.4, the annual (calendar year) dose or dose commitment to any MEMBER OF THE FUBLIC will be calculated by summing the following doses for the calendar year:

Direct radiation dose Liquid effluent dose (DTau)

Noblegasdose(D,Dh)*

Particulate dose (D,)

These calculations are required only if the liquid or gaseous affluents exceed twice the limits of Technical Specifications 3.11.1.2.a, 3.11.1.2.b, 3.11.2.2.a, 3.11.2.2.b, 3.11.2.3.a or a

t 3.11.2.3.b.

2.6.1 Direct Radiation Dose Measurement Technical Specification 3.11.4 requires the determination of cumulative dose contributions to a MEMBER OF THE PUBLIC from direct radiation from the reactor units and from This requirement is applicable radwaste storage tanks.

only under conditions set forth in Specification 3.11.4 This determination is made by the utilization Action a.

indicator}

~~

ofdirectradiationmeasurementsfroakthermoluminescent dosimeters (TLDs) M -5 2 th:;23 % S'Nocated :' -," * - -^ -

g irt rr :1: rr th: '.'rit I ;::t::t:f :::: L;;;. In::t"-

==

_ ~ ~ - _ _

s near the CGNS property line in each of the 16 meteorological s

sectors.

_e Rev. 8 - 08/86 2.0-36 GRAND GULF, UNIT 1 J36PMI86052201 - 12

f f:'in:f in T;il; 2.0 ? Measurements from 1::: tics: :::

these TLDs represent the direct radiation generated by the F

facility plus normal background radiation.c Control TLD's are also utilized to differentiate between background radiation and direct radiation from the The following seven TLDs are designated as facility.

controls based on the criterion that they are located ten

~~

Exact locations are miles or greater from the facility.

identified in Table 3.0-3.

M-06 M-12 M-14 M-39 M-11 M-13 M-33 4

The difference between the averaged quarterly radiation 5

measurements of the ; :t::t:f x:?TLDs and the control indicator J

TLDs represents the direct radistion dose to a MEMBER OF TE PUBLIC from the operating facility.

i l

k f'

The locations are identified in Table 3.0-3 by the following TLD numbers:

M-16 M-22 H.41' M-86 i

N M-13 M-25 M-42 l

M-19 M-27 M-44 M*93 i

M-21 M-28 M-45 M-94

~

n-

--~ ^=

=

Rev. 8 - 08/86 2.0-37 GRAND GULF, UNIT 1 J36PMI86052201 - 37

e r%

ODCM TABII 3.0-3 (CONTINUED)

TLD LOCATIONS Page 6 of 6 FIGURE SECTOR MILE TLD NO.

LOCATION Not M-74 Midway of North fence Shown P

Onsite M-75 Corner in fence in front A

of Maintenance Shop

.e,

.e, so n

A "h

M-76 Southeast corner SSW Basins-O i

M-77 Protected area fence beside "j

R maintenance shop k

7 M-78 Outside vault in Admin. Bldg.

Q j

i

1 e

e e

M-79 Wall in Central Records (middle)

Q 5

{'N N'N M-80 Wall in Central Records old Q

g g

g library location r.

m z

f g

1 i

M-81 Inside Admin. Bldg., 2nd floor, Q

"f

{'.

k northeast vall Q

M-82 Tech. Support Area Q

M-83 Tech Support Secretary's office P

t M-84 Security Island l

e3 M-85 Lee Electric Building Across m

6 from Port Gibson High School 3.0-3 G

5.2

'O 3

l 5.$

j

  • M-86 Bechtel Gate North Site u

?

3.0-1 B

0.5 i.,

Boundary I

i 3

I g

g M-87 Intersection of Rodney Road 3.5 $ eN ew

& transmission line 3.0-3 J

8 t

3

  • M-88 River mile marker 409.5 3.0-1 A

4.2 y g t

m m

i

  • M-89 Middle Ground Island 3.0-1 R

4.4 n

m

.e

  • M-90 Across from Middle Ground Island 3.0-1 Q

3.5

,T T

T i

z z

z

  • M-91 Transmission line by pond 3.0-1 J

4.5 9

A'

  • Technical Specification requirements Rev. 6 - 9/85 GRAND GUII, UNIT 1 3.0-6c 1

J200DC".850829

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