ML17258B155

Forwards Results of Independent Review of Draft Safety Evaluation of SEP Topic II-2.C, Atmospheric Transport & Diffusion Characteristics for Accident Analysis. Suggested Dispersion Coefficients Provided

ML17258B155
Person / Time
Site:	Ginna
Issue date:	06/30/1981
From:	Maier J ROCHESTER GAS & ELECTRIC CORP.
To:	Crutchfield D Office of Nuclear Reactor Regulation
References
TASK-02-02.C, TASK-2-2.C, TASK-RR NUDOCS 8107080254
Download: ML17258B155 (29)

Text

REGULATORYOYFORMATION DISTRISUTION 0I EM (RIDE)

ACCESSION" NBR: 8107080250 DOC ~ DATE; 81/06'/30 NOTARIZED; NO DOCKE(Tt ¹ FACIL::50 244 Robert Emma.t Ginna Nuclear PlantF Unit lr Rccheatei G

05000244 AUTH,NAME:

AUTHOR A F F IL'IAT'ION MAIER'FJ ~ E,'ochester Gas 8 Electric Corp.

RECIP,NAME>

RECIPIENT AFFILIATION CRUTCHF IELIF D ~

Operating Reactors Branch 5

SUBJECT:

'or wards" results of independent" review of draft safety evaluation: of SEP T'opic II-2',Cg "Atmospheric Transport~

L Diffusion Characteristics for Accident'nalysis,"

SUggested dispe'rsion coefficients provided.

DISTRIBUTION CODEI: A035S'OPIES RECElI VED: LlTR ENCL SIZE:: '

'ITLEI:

SEP Topics" NOTES: 1 copy:SEP Sect; Ldr.;.

05000240 RECIPIENT IO CODEiNAMEl ACTION::

ORS'5 BC OQ INTERNAL: A/O'ATLEQUALii3<

HYO/GEO BR

'10.

NRC< P 02".

t 01.

COPIES

t. TTR ENCL<

'"7 7

1 1

2' 1

1=

1 RECIPIENT ID CODE/NAME CONT.'YS A

07 IEE 06'R'SSESS BR 11 SEP BR 12'OPIES LTTRE ENCL' 1

2 2'

1.

3 3>>

EXTERNAL: ACRS NSIC 14 05.

16 16 1

~

1 LPDR NTIS 03 1

1 1

1 ~

S'l Gq TOTAL NUMBER'F COPIES REQUIRED!

LTTR 8

ENCL<

4' i

t I

~

g

~ 'I I

l~

I g

e w

y

> 4 K'r c

ll V

e

'I

'I fi

~ J""

1

~~if'~

l@~izjpz zzizriz zeSF zuzuzz g,*

EIATC.'OCHESTER GAS AND ELECTRIC CORPORATION o

89 EAST AVENUE, ROCHESTER, N.Y. 14649 JOHN E.

MAILER VICE PRESIDENT TELEPHONE ARCA CODE Tld 546.2700 June 30, 1981 Director of Nuclear Reactor Regulation Attention:

Mr. Dennis M. Crutchfield, Chief Operating Reactors Branch No.

5 U.

S. Nuclear Regulatory Commission Washington, DC 20555

, +~it IPii

/~h, F05

+ <0

Subject:

SEP Topic II-2.C, "Atmospheric Transport and Diffusion Characteristics for Accident Analysis" R.

E. Ginna Nuclear Power Plant Docket No. 50-244

Dear Mr. Crutchfield:

As indicated in our May 22, 1981 letter to you, enclosed please find the results of our independent review of the draft safety evaluation of SEP Topic II-2.C "Atmospheric Transport and Diffusion Characteristics for Accident Analysis" for the Ginna Nuclear Power Plant site previously transmitted to us on April 9, 1981.

Please note that revised Exclusion Area Boundary distances used in'his analysis have been defined in our June 26, 1981 letter to you relative to SEP Topic II-1.A "Exclusion Area Authority and Control".

The revised Exclusion Area Boundary is shown in the enclosed Ginna site map.

The values for X/Q dispersion coefficients provided in our assessment are considered appropriate for use in estimating offsite radiological exposures from hypothetical accidents.

Very truly yours, Enclosure

( 8107080250 810630 I PDR ADOCK 05000244l PDRj

~

IPl

'I 1

l CI

~

t

~

i1 ld I,.i 1

SEP Topic II-2.C for Accident ~Anal sis June 30, 1981 Xntroduction This analysis provides an independent revieW of the NRC Staff's assumptions and results presented in the draft safety evaluation for SEP Topic II-2.C, dated April 9, 1981.

The objective is to determine appropriate short-term ground level dispersion coefficients (I/Q) in accordance with more recent NRC meteorological diffusion methodology.

Such dispersion coefficients are determined for use in the assess-ment of offsite exposures from hypothetical accidents at the Ginna Nuclear Power"Plant.

Me@ho~dole Table 1 summarizes the dispersion analysis performed for the Ginna site using the direction-dependent methodology specified in Regulatory Guide 1.145 (0.5% probability).

Also shown in Table 1 are the results of X/Q values calculated using direction-independent methodology (5.0% probability).

For each

model, separate calculations are presented for the revised Exclusion Area Boundary (EAB) in each of 16 directions, and for a 450-meter circle, corresponding to the former Ginna EAB, to enable comparison with the NRC Staff's draft SEP safety evaluation.

Minimum distances assumed in the revised EAB calculations are given in Table 2.

See also attached site

map, Figure 11.

Additional considerations used in this analysis included:

a.

Lateral plume meander (as defined in draft SEP Topic II-2.C assessment);

b.

Atmospheric dispersion conditions when the wind is blowing in each specific onshore direction using hourly meteorological data in the WINDOW program (reference a);

c ~

For calculational

purposes, EAB distances offshore were assumed to be 8000m; d.

e.

The release is assumed to be ground level; A building wake factor has been applied (cA = 440 m );

2 The assumed distance to the Low Population Zone (LPZ) is 4827 meters;

0 N

p 14

g.

Three years of Ginna meteorological data (1966, 1967 and 1973-74) were used for each of the three sets of distances assumed in this analysis; h.

The averaging time periods for this assessment are:

1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br />, for the EAB; 8, 16, 72 and 624 hours0.00722 days <br />0.173 hours <br />0.00103 weeks <br />2.37432e-4 months <br /> for the LPZ.

h 3.

Results and Discussion The results of this analysis are plotted on Figures )-10 and summarized in Table 1.

The peak value, 5.8E-4 sec/m occurred in the West sector in 1967, assuming the former 450-meter EAB circle and a 0.5% probability.

This compares with the peak value of 2.7 E-4 sec/m which occurred in the same year in the SSW sector, assuming the revised EAB distances and a

0.5% probability. It appears that the peak X/Q value of 1.0 E-3 sec/m given in the SEP draft safety evaluation resulted from the 1967 data at a 450-meter distance, but at a probability level of 0.312%.

The assumed 0.312% probability requirement has been revised up to 0.5% in Regulatory Guide 1.145.

The average value of 2.2 E-4 sec/m for the three-year 3

composite data (1966,

1967, and 1973-74) at the revised EAB is in our estimation appropriate for all future licensing purposes.

The values of X/Q for the LPZ distance are also included on Table 1 and are computed at probability levels of 0.5% and 50%.

In all cases these are less than the LPZ X/Q values presented in the SEP draft safety evaluation.

It is con-ceivable that the NRC Staff may have also assumed a prob-ability lower than 0.5% in its assessment.

In accordance with the results of our assessment and the current require-ments of Regulatory Guide 1.145 we would consider the 0.5%

probability LPZ values contained in Table 1 appropriate for all future licensing purposes.

In summary, we would consider the following dispersion coefficients appropriate for use in,offsite dose assessments from hypothetical accidents:

Time Period Location X/Q (sec/m

)

3 0-2 hr.

0-8 hr.

8-24 hr.

1-4 days 4-30 days EAB LPZ LPZ LPZ LPZ 2.2 E-4 2.3 E-5 7.0 E-6 2.7 E-6 1.1 E-6

References a 0

Woodard, K. "Accounting for Wind Meander and Site Shape in Probablistic-Atmospheric Dispersion Models",

Transactions of the American Nuclear Societ 1975 Winter Meetin ANS 22, 365, (1975).

b.

Letter from J.

E. Maier, RG&E, to D.

M. Crutchfield, NRC, dated June 26, 1981.

SEP Topic II-1.A, "Exclusion Area Authority and Control."

c ~

Regulatory Guide 1.145, (For Comment),

"Atmospheric Dispersion Models for Potential Accident Consequence Assessments at Nuclear Power Plants",

August, 1979.

d.

Letter from L. D. White, Jr.,

RG&E, to A. Schwencer, NRC, dated October 25, 1976.

Response

to NRC Additional Information Requests, Appendix I, Ginna Meteorological Data.

p

Table 1

Summary of Accident X/Q Values (s/m

)

3 Based on Three Years of Ginna Site Data Averaging Time Period After Accident (hours) 1966 1967 1973-74 3-yr avg Revised EAB 2.2E-4 2.7E-4 1.8E-4 2.2E-4 450m EAB 5.0E-4 5.8E-4 5.0E-4 5.3E-4 0.5% Probable Direction-De endent Revised EAB'.6E-4 2.1E-4 1.5E-4 1.7E-4 450m EAB 5.0E-4 7.1E-4 4.6E-4 5.6E-4 5% Probable Direction-Inde endent LPZ 0. 5%

Probable LPZ 50%

Probable 8

16 72 624 1973-74 2.3E-5 7.0E-6 2 7E-6 1.1E-6

2. 7E-6 8.5E-7 6.1E-7 4.6E-7

~,

I

Table 2

Ginna Revised Exclusion Area Boundary Distances Direction From Plant Toward)

N NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW Distance (m) 8000 8000 8000 8000 747 640 503

~

450 450 450 503 915 945 701 8000 8000

~

~

Ginna Direction Dependent One Hou

-2 10 SS

$0

$0 TO

$0

$0 f0

$0

$0 10 Figure l 5

1 05 0$

01 t)05 00'I 0.

I I ~ I

! ci' tt

~

<< ~

'i-:I f'I: i.!1 i ~

ct I!

5 1973-74 1967 1966 10 lt."

pfi' t

~

~

~

~

~ ~

II!'c t

~

~

~

t

~ I ~

~ I ~ ~

i '

ctt c

~ I i.

~

I

3 L:.':-:".~

I

. 450ffi cizcle 10 4

t

~

c i

0 r i ~fil it<<i

'. I!

f f!

~

~

~ ~

I c

I

~

~

~

I <<f

"~ it t

~

~

~

~I,i I ~ I I ~

I I..

I 0

't.') -.'!ifff Reversed 0

S.

I ~ it

~ ~ ~

~ '

I jii)

~ \\

~

~

I

'"tI '.

~ ~

"~

~

~ ~

10 I,

It ~

I;.'

~

~ ~

0.0!

005 O. 1 O.f 0.$

1 I ~ I.

I I:I

~ i '

~ f

~

~

I

~ t I

1 t

I'f'I:

i

~

,<< I i '

~ ~

~

'it ~

lO

$0

$0 40

$0 SO

}0

$ 0

't';

t c ~

't i I I

!!t I

$0 I

~

j i

I ~

'I ~

~'I I S'l

<< 'I c.,

I 1

I

$}$

Probability

~

1

Gonna Direction Dependent Average of Three Years Figure 2

-2 l0 n.~

999 999 SS SS 90 SO

)0 SO SO 40 30

)0 lo S

t t

09 Ot Ol 003 ool lo 9

9

~

~ ~ ~

L

l. ls I!'ll l.'!!

I

~

~

Revised EAB 450m circle rt, s

s

~

I '

s

~

~

~

<<3 t

l I

lo

~ I I

~

I I I ~

I

~"

ills 1

~

~,C:

~ Is s

~

1 1

s I I

I I 1

~

~

s,ll!

I

~

s

~

1 t

~

1 f'I

~ I

~ ~

II tll~

I ~ Is!

I ~ st

~

I 1

~

I S.

50m circle

.'st J ls' I'I 11 isl::.l;".3, 1 Js I::.

ls 1

f i:.

i '

-" 3 t

1 I

~

~

s lo 4

1 ~

ss s

s Is

~ I I ~ I

~ ~

~

~

I I

~

~

I I

~

Revised

, I

's'I EAB ltl

~

~

' ll 7"

~

'Ilt

~ 1 ~

~

sl.

~

I I

~

~

I

~

~

l

~r

~"

j 1

~ ~."l-."-i

~

~ ~

~

~ ~ I

~

~

~

t I

~ I

~

sl

~

S.

-- ~ I S'ls 11

~ ~ Is I

,} I

~.

s

~ ~

~ ~

~

I

~ ~

~

1 1

~

1 t

~

~

-f.f I

~

f

~

1 1

~ ~ I Is

~ 1

~<<

s 1

~

~

I ~

~ ~

lit I:ij

ll~

I' 4 ~

!I;ls I

I I '

~ '

I

~

~

~

~

~ ~ ~ ~ I r

~

I

~ ~

~

~

1 ~ ~

~ ~

~

~

~ I I""

1

~

~.f

~ ~

f I

sl sl 111 1

~

1 ~ ~'t I

~

I

~

l 0.0!

O.OO O.l 0.3 O.S 0

30 l0 0

IO SO SO

)0 SO SC 93 93.0 'll 93.93 Probability

pinna Ground 1973-74 Revi EAB Direction Indepen t

Figure 3

111 110 11

'll SS Sh 01 t1 th Sh lh 11 to IO S

t I

o.s ot t.l tons nrj IO I,

I

~

~

I

~

C 1

~ I

~:'I

i"I

~,I, I ~

I

~

~ ~

~

~

~ ~

I ~

~ ~

t~'"

~ \\

10 0

~

t

~

~

~ I ~

~

~

1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> I

! Ilt.

I I 1 ~ I

~ I

~ tt I

I ~

I

~ I

--:.-::- t::i:.:==. Ci'-==.: I I ~

I ~

~ 'tT I

~

~ t Lh

~

~

""1

+4'

~

~

~ i-I f-'.-

~ '.-'

~

I

~

~

I C.~

. 1

~

~

~

~

~

t

~

IL 0

s

~ I

~

2 hour2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br />

~

~ ~ Ir

~ ~

~

I i tent r ~

~

I I

I j

10 e

I

~

~ I

~

I CI"

~ I

~

~

I

~'

I

~

~ 1

~ '

f

~

~ iI

~ ~,Il I

I I II I

~

~

~

~

~

~

~'I':

~

~ I

~

~

~

~

+:I

~ ~ ~ ~ ~

~

~ C" I ~

~ I

~ ~ ~

~

~

~

~

~

~ I

~

~ I I

~

~

f

~

~

1 I \\

~

~

I

~ ~

~

~ 1

~ ~

~ ~ 1

~

10 '

~

~ I

~

~

~

~

~

~ ~

~

~

~

~

~'

~

~

~

~

~

I

~

~

I

~

O.oj C. S O.l O.f O.S I

~J JJ 4J SJ SJ fo 00, SJ SS Sl 1)

'll 0

' l.1 ~

SS.SJ Probability

Gonna 1973-74 450m Circle Direction Independent.

Figure 4

-2 1 0 01'B 0

0)1 050 11 Ol 15 10 01 10 Ct) 50 ln JO 00 IO 5

)s

0.5 0 0 n.i 005 nn)

Ts

)0

~

~

~'.s l~~t'1)

I st s '

t

~

~

{

l-'-

e ".

I.

~ I

~

~

~

~

't

~ t

~

'P l ~.h.

)

-)

~t:l.:

~ g 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> s t

~ ~

I

> ~ t

~

r I

s ts.'

I

~ t

)

, t ~

~

~

10 I

~

.' I l'I I

'I I ~

~ ~

1

'I I

stt si;,

~

~

t.l

~ '

I

i' I ~

~

I ~

t t t.

s ~ 'At sr I ~ \\

~ t

~ I ~

~ ~ t

~

~

~

I)ij

~

~)-

I

~ I

~

~ I I t I

~.

I lh

)

Cstl Ff S

08N 2 hour2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br />

~ ~

~

~...I 0 ~

t 't.l J.- -.

h

!~

~~~I~

~~~

~~~

~

~

~

~

~

~ I~

~~

~I~

~I~

I~~I

~

II~~I

~

~

~~

~

~~ I~~

~

~

~!~I~

.s!ri s.!

....",I

~ ~ ~,

~ ~

~ f

~

t

~

)

~

t

~

s s t I lt ~

I): ~

ITII

~

~

)

t Stii

~

~

I t

~ '

~

~

t sl s I ii. i st

~

t I

~

~

h t

srt If

~

~

~ I EEE I ~ I

't!',

t t ~ '

t)J ""'

~

h

~

~

~

~

i

~

~

~

~ ~

4 t

~ ~ )

~ ~

i

~

~ I t

~

t ~ I

~ ~

~ ~ t,

~

10 '

~

I

~.I

~

~

h

~

~

I

~"

I

~ l t

t

~

~

~

~

~

~ ~

~

~

~

~

~ ~

~ s

~ ~

~ ~

I s

I l

~

~

~ ~

)

OE'I C01 O.l 0 i L5 I

0 5

)J tJ JJ JJ 50 OJ JO OJ OJ 05 1I 50

1) 0

')).1 1)1 Probability

Ginna Ground 1967 Revised EAB - Direction Independent Figure 5

S'l SS ss ts no so 10 ss to '.

Is S

t I

O.s 0 t n.l 4nl nnl

~

~ ~

1

~

~ I

~

2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> hour

~

I I

~

C TI

~

~

~

I r

~r ~

i t ~

10 0

~

~ I I

CI I

I I ~

~ I

~ ~

~

r~ ~ii t I

~

Ir

'- I ~

I

~'

~.u

~

~

't

~

I

• I I ~ CI I

t'I

~ I

~ ~

~

~

,. nc I I

8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br />

~

~

I:I..;~I.i,

)

~

II i t ~':t

~ I L ~

~

I 10

~

I

~

I I lt 16 hours1.851852e-4 days <br />0.00444 hours <br />2.645503e-5 weeks <br />6.088e-6 months <br />

~ I

' I:

ll I

~

~ ~

I

~,

~

~

~

I;il r.I

~ I

~

~

~

~ gt

~

~

I ~

~

I I

~ li I

I I

~

72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br />

~ ! I'

~ "..

"~

C I

'I

~ ~

~

I ~I' I.:

~

': ~ I

~

~

~ ~

~

~

~

~

~

~

I iI

~

~

(

I" I

~ t I

~

<>W O.l O.t O.l I

t 0

10 t0 00 40 St 00

!0 '0 SS t Sl Sl

0) ~

S i 0 SS.S Probability

na 1967 450m Circle Direction Independent Figure 6

-2 10

'Bt OOOI'II!.'}

i: iiii s>

ol os oo aa to rn sn fa so to lo O.S Or n.i OOS noi IO

~: -I I

~

~.r I

~

10 I

~

I 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> 1 hour

~ ~ ~t

~

I

~M t

I

~'l I

I ~

~ ~

4

~ I I ~ t

'I r I ~rr

~

~

~ t

~ I

~

~

": I'r

... i. ~'ll I ~ I I ~l

~

~ ~

r ~

I~

~ I

~ I I

I t

4

~ I

~ 't

I I

Ir I ~

I

~ ~

~

~

I ~I'll I ~ I lo

~ ~

Olg O

0 O

IA t

I

"~ ~ ~

~

~

~

~ '

~

l"I "I.4I f

~ ~ ~ ~

L.

J

~

t

~

~

~ '

~

~

I I

I

~

~

I

~ I 4

I I

~

~ *

~

II:

' r

~ I

~ I

-i~ "I

~ I'I

~g

~ 'I'I' I I I

~, I 'I i I TT 4

r I l

~:I: I Ll t

t ~

.I. ~ IlI

~

I I '-'

I

~

I l

~

~

I:I.

Ij

~ t

~ ~ ~ ~ ~ ~

~

I till, I ~.,li,

~ I

~I I

I ~

I I

':=-".:!.II

~

I I

I I

I I

~ I

~ ~

I

~ t

~

~

~ ~

~ '

~

I

~

~. '

10 'OI O.OS O.I O.t O.S I

I I

• I

~

~

I t

~

~

t ~

~ ~

~

~ ~ $

~ ~

~ t t

~l

~

~

~

I

~ ~

t

~ ~ ~

t ~

~ ~

s Io oo Jf ft so so to oa oa Ss so ss OI

~

~

~

I N.ot Probability

~

~

na Revised EAB 1966 irection Independent Figure 7

j 0 SSOt 0

0 S)S St 0 'l tt SS St)

SS tS 00 Sa iO SS SO.

$0 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br />

't 0.$

OS h.t 00$

0)al 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br />

~ ~ I

-':..::.I:.I:..

':.:i:..l I!Ii!'i I 4

~ t 4

~

~

~

~

4 4

8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br />

~

4 S ~

a 4 I rt1'I 4

~ ~

~

~ t

~ I 4

~ ~

~

4

~'t

~

~

~

4 a

~i1

~

4

)

~

4 4

~

4

~

t 4

4 10 4

~ )It I I) 4 I

I 4

~

~

~

4

)

~

4 ~

a '

~

II

~

~

a I ~

I ttf ~

S ~

rt

~ )

~

~ Sr;

ts

~

~

~

~

~

a

.'gL

)I) t

~ '

44 "J t

~ );

I

, t

~ ~

4

~

~

~

4 4

4

)!

I I

'4

~

~ t I

~

4 S

16 hours1.851852e-4 days <br />0.00444 hours <br />2.645503e-5 weeks <br />6.088e-6 months <br />

~

~"-"!4".4;L 4

~ ) "..)t star ~:.j%

a t

=:4"-'!-'s.-::.-:="=.UI.:. i t as a

~

.t 4 -t

-- t 4

-'=++-

~

I

~ ~

4 t

4 4

4

~

~

4

~

t 4

~

4 4

't

~ ~ =

72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> a

~ 4

~

I 4

4

~"t-I 4

10

~

I 4 ft 4

~ ~

4

~)as i~

~ ! I

~

4 I

~r

'4

~ 'r

~ la, 4)

~ ~

~

jaat It)a I

~

4 )I st 4

4

~ ~

4 ~

624 hours0.00722 days <br />0.173 hours <br />0.00103 weeks <br />2.37432e-4 months <br /> i

I 0

!'4 I

~ ~

~

~

I )

~

~

~ ~ ~

'.JWI,:

I ~

~

4 1

I ass' Ll=:..:I

" t-"I t:C..I 4

~ a

~ ~

~ I

~

~ I

~

~

~

I)N',

~ ~

I

~

\\

~ ~

~

t'N

~

L

~ ~

4

~

~

a-t ~-!

I 10

~

~

~

a 4

4

-"rI I

~ t

~

4

~

~

~

~

~

~

~

4

~

4

~ t) a 4

4

. ~s N

'- ~t-

~ ~ ~

~

4,

~

~ 1-I

~

~

~

~

4't'

~ I

~

~

4 4

t I

t Ikl'I CA$

C.t O.l 0.$

l l

lO 40 SS Sl

$0 SO lO SS M

0$

SS Sl S)$ St'l

'la St Probability

~

~

~

~

~

~

I irma 4SOm Circle 1966 Direction Independent Figure 8

-2 10 1st No 11 5s 15 sn os fo r)t sn no so fo to 5

5 0.5 0 1 It.l 005

)art

~ 'f f

~

~ ~

~

I I

~

~l ~.'-'

I

~

t t

~ t t' 10 1 ltl I

I

~ I 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> Ir':~

I...a 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> a ~

a)

I t)I t t f a

I I I

~I

~.

i

~

)J

~

ItjItt

) I ~,

~ te

~

~

tc... I t

t ~

~

- I ta

~

~

I

~ f t't t i'

~ i

~

~

a

~ ~ t

~

I

.I

~t l-I o.-.

.: ~II i 0

iai Ila'i.

8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br />

===='i i':.:- Sr;. =Ill

~

~

~i' a

.. - ~ f-I t

t a

I

.I

.I ~

I I

a

~ ~ t

~

t 16 hours1.851852e-4 days <br />0.00444 hours <br />2.645503e-5 weeks <br />6.088e-6 months <br /> t.o '

'~)::-::: -H+-'I-l:I' t

~

I I

~

':ll

,,;I

~ t I

I a

~

a t

~

a '

" ~

ft' l,l."I I

0 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> t

~ ~

~

~

~ ~

I

~

I ~ I~ a t I.-;

, ~ t ~

~

t a

~

!)i I ~ ~

~ ~, I

I

~

~

a

~

~

~ I

~ I

~

~

I'0

~

f

~

~

~

t ~

~

~

at a

t

~ o'I 624 hours0.00722 days <br />0.173 hours <br />0.00103 weeks <br />2.37432e-4 months <br />

~

a

~

t

~

t

~

~

t ~

~ ~

I

~ tt a I I ~

~

l ~ ~ ~

~

~

I

~ ~

~

~

~

~

~

~

~

~

~

~

~

~ 'f t

~

~ t I

~ ~

~ t t

~

~

)

~

0Cf CXS O.t O.f OS l

Z S

fs:0 OO fS SO SO ln SO OO SS Sf 15

1) S

'S).1 SS.S Probability

Ginna 1973-74 LPZ Direction Dependent Figure 9

10 999 99$

9$

SS 90 CO FO CO SO CO

)0

)0'O 2

I 0$

0.)

01 OOI 0.0! IO 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> F

~

a a

I

!Ii S!

! !si Is as a

~ a I! I aa' I

a I,"a

,as l a!sa l

2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> a

a

. ~

10-5

'8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> I

s'!as I ~.

I I I

s:

1 I Isa a

s Ia

~ ~

s

~

~

~

i! ~.

~

a ilia

~ l ~

~

~

I

~

II, ~ I

~ II I ffa a

a

~

~

a

~ ~

I a sl' I

~

~I, a

16 hours1.851852e-4 days <br />0.00444 hours <br />2.645503e-5 weeks <br />6.088e-6 months <br /> a aia:fI "I"3'a

.:el FF:i 'I as. t='t FCQ.,: s,

~ ~

~ I

~ \\

~

~

~

~

~

a s

Qg 2

72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> 10-6 I

I I

~

I i

ss s ~ ~

aa

~

I 'Is a '

a

~

~

I I I

, a ~

s I I'

. Ill fs'

~

~

I ~ I a

I s

~

s

~

a I

I

~

I

~'

s lass (I>>

a~

~

,aa, aal

~ Ia Ti.

~,\\,

~

a

~ ~ ~ I

~

~

s

~sa

~ '

as a

~

~

a I

a a

a

~

a 624 hours0.00722 days <br />0.173 hours <br />0.00103 weeks <br />2.37432e-4 months <br /> '!;a aaCa a

~'

a I

. I:'(--- 'L --:

~ s

~

~

~

~

.ta

+

~

\\

~ ~

~

~

10 s

I ~

I a I s !as:I!;

~ ~

I

's

~ f I I

a

~ ( I (

I '

s

~ ~

~

I ~ I e

~

~

~!'

~

~

~ ( ;:I' a

,I

~ I a'" f"

'. I I!

~ ~

al ~

a

~ s a

~ L't a I

~

I.

~ I

.L'

~ I I ~

I ~

a 1

~

~

~

i 0)II 0.0$ LI 0.)

0.$

l IO

)0

)0 CO

$0 CO

)0 CO tO tt tt 99.0

' 'l.t 99 99 Probability

a Ginna LPZ 1973-74 Direction Independent Figure 10 10 3 4'ts SSS

\\4 ~

~'I ll tl St IS Is ta st 44 ts tt 4

t I

~ I

~ t

~ I ~tl all

'e;I il =l

~e

~

'.:-" I':::

hMM

~ l 4

~

al Ill" I

,,ll ll!llI Lre l, I I le

~ I

~.I ele ~

I I!~ e ;eel elt el!!

Ie I'l

~

~

~

!I~

~'l I:Li el ~

~l ~;

I '

!i I

"'l~t

..e(Ii

~,Ill alta

I

.F L~l";:

~ I jre!

~I lie

~ ~

Z e<<

4$

~

I I ~

ear 10-"

1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> ig,.

I l I L l ~Ze'll,',

Llj l'!".

al

'.<<Tat,.'Ijattf jej. l'.!l

'!II

ital

~ ~

'I ~'!$

aee arel 0 e,tata'

.III'"~

j I' l-!at I l

'll le 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br />

~t '.l 'I'.%

Lal a fe

. f;J r I,!

~

I tell,'!!

af.

I

~

etr

ai I

le l.

Je

~.nI'a I-',l

, al.le.'; el-...l

-"-",,", ~~:.i:..

. =:.'.:l.'I 0

4 0~,. - I 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br />

~

I I

e J

~ +I

~ l

~ l a

~

8 0o 10 4

Q 4 %.".lee'!

Ti

"~I.'

le'i'-.ll! <<jl'

.'et.!ejk'!

ai'll I

- ~

'I

~

~

I ~ I I

~

'I're

. I e!I 'r!.t.

'llr

I ' ~~ '

~

I LfJ 16 hours1.851852e-4 days <br />0.00444 hours <br />2.645503e-5 weeks <br />6.088e-6 months <br /> Ia:Se I

I

.Ii I

a

~ le ptl'all

!I!~

et

~l

~S.L~

~ '

~

I

))-'"i iie I!

e

=1

~ " '

~ ~

~

~

10 6

I

~

~ ~

72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br />

-I- "-

I't eel ee!!0!e'.

I! i e

I e

el I "Itllee.- I etl

.: l eI

~

~

I e 4

t I ll.

I

lei '.=I Ill 624 hours0.00722 days <br />0.173 hours <br />0.00103 weeks <br />2.37432e-4 months <br /> J

a. I

'L:,

~

~

.a. ~I.a Ie I:

~

~

~

ell

~

~

I'!

M

~

e

~ l ~ ~

10 7

~ '

I

~

e

~

I ~

~ '

~

.I

~

~ ~

~.l ~ I

~tl SSS

~ I St SS I

I

~

al il tt 4$

$ 4 lt It 't 44 4$

Sl tt tl~ tl.~

4$ tt Probability

~ p gg pglpplp l

I N

+

SITE BOUNDARY 3

+J':(

).

c C

~~/" )

C~i iEAB

<<>> DRR %VI?

$" -3i-

+

I

s

+

C War<<<

4

...I t)'-j

)

II I~")

OLD EAB 8

11J

/

i3 4

i 'i(

)l)rm>>>>

4L I

l r

~tWI>>)

I 4",I 0

0 P.,

'g y "+

t' P /'ITE BOUNDARY g+-~

1 r v-~,

j f

L

~

t,

, ("

')

I

)

r

/

/EWJ,~-,

/j jj

(

+

))

FIGURE 11 R. E.

GINNA SITE

~ <<0 <<>>I>>

e <<>>I 'll