ML19344F124
| ML19344F124 | |
| Person / Time | |
|---|---|
| Site: | Byron, Braidwood  |
| Issue date: | 08/29/1980 |
| From: | Delgeorge L COMMONWEALTH EDISON CO. |
| To: | Eisenhut D Office of Nuclear Reactor Regulation |
| References | |
| NUDOCS 8009120446 | |
| Download: ML19344F124 (43) | |
Text
f G on)mmonwealth E" son Co First National P1 ara, Chicago, litinois THIS DOCUMENT CONTAINS
$$$$' %%! sie9o' "'" B
- 787 P00R QUALITY PAGES August 29, 1980 M1, D. G. Eisenhut, Director Division of Licensing Office of Nuclear Reactor Regulation U.S. Nuclear Regulatory Cmmission Washington, DC 20555
Subject:
Fesponse to NRC Request for Information Regarding Evacuation Times Byron Station Units 1 and 2, and Braidwood Station Units 1 and 2 NBC Docket Nos. 50-454/455/456/457 References (a) :
D. G. Eisenhut letter to "All Applicants For Construction Permits and Operating Licenses dated July 2, 1980 (b):
D. L. Peoples letter to D. G. Eisenhut dated August 1, 1980
Dear Mr. Eisenhut:
In response to the request for additional information on evacuation times made in Reference (a), and in accordance with the format for response described by Comonwealth Edison in Reference (b), the requested information for Byron and Braidwood Stations is enclosed. Preliminary Evacuation Time Studies for Byron and Braidwood Station have been submitted for review to the State and local officials delineated in Section 3 of the report. No requests for change nor significant coments resulted from this review.
If there are any further questions in this ragard please direct them to this office.
Very truly yours, i;
.i
,{ ;, w ' wtp C L. O. DelGeorge Nuclear Licensing Administrator enclosure 6 'g g
\\
ff\\
sf#
80091g0 Yg r
s c.
PRELIMINARY EVACUATION TIME STUDY OF THE 1,0-MILE RADIUS EMERGENCY PLANNING-ZONE AT THE BYRON' STATION AUGUST 1980 t
Prepared by Commonwealth Edison Cc=pany 4
t s
i a
t
+
l
>.j.
8 I
- 1. :
l 4
I w.
etigarem*.cwm asam-e
-s
.r-. - _.... -,,..,..,,,,,,
.,..,,n.n_,,-,m,.e..,n.,-,ww,e-,-.,,-,w-,,
-mnw-,-,,,-n
,,.,,n,,.,c,
..,-,,-,,,..n..nm,,
r,-n-,+,
,,,,,_ve
c.
TABLE OF CONTENTS S
Seetion Title Page-1 Summary.............................
1 2
Evacuation Time Study...............
3 4
3 Acknowledgements....................
7 Figures 8
Tables 12 l
4 I'
i
~
m
_m m_.
.-,-..v-,
-,.-w..
4
,-o---
m.
.,,.ere
.---m.m...-,,_,r,,-...
j LIST OF FIGURES
- Figure 2-1 Generalized Sector Evacuation Map 8
Figure 2-2 Educational Institutions 9
Figure 2-3 Recreational-Areas 10
- Figure 3-1
- Estimated Sector Evacuation Times 11-t o
j i
i 4
O i
?
i j.
11 T-YFw v y Nw 7
g 7e w-
-+e tey
~
g
--Ma w
y eW
--TW 9
-ee'"
=-. -, -
ry--g93-ye--
r W -747-N*-n re-T
--7--?Wr+'-r---*
- -M J
i e,
LIST OF TABLES 3
Table Title Page 3-1 Estimated Evacuation Time'of the General Population Within'10 Miles.
of the Eyron Station.
12 4
A-1 Principal Evacuation Routes 13 A-3 Evacuation Zone General Characteristics 15 B-1 Special Facilities Within 10 Miles of the Byron Station.
16 t
9 e
G I
9 a
'iii
0 8..
Section 1 Summary In response to a request from the U.S. Nuclear Regulatory Commission (NRC), the Commonwealth Edison Company has prepared an assessment by sector and combination of these sectors, of the time required to evacuate the area located within 10 miles of the Byron Station, Byron, Illinois.
This report is based on emergency planning data available at this time and its findings are subject to ravision after the state and local emergency plans have been fully developed.
This report has been reviewed by state and, local agencies.
Using the method and assumptions discussed in Section 2, the best estimate evacuation times by zone are:
Zone Description Best Estimate Total Evacuation Time (Hours)
Sector I O-2 miles in the 1800 sector 2
SW, WSW, W, WNW & NW 22 5o sectors from the Environmental Report.
Sector II O-2 miles in the 1800 sector 5
including the NNW, N, NNE, NE, ENE, E, ESE &SE 22 5 secto.rs from the Environmental Report.
l Sectors I & V O-5 miles including sector I 5
and the SSE, S, SSW & SW 22 5 sectors from the Environmental Report.
Sectors I & VI o-5 miles including Sector I 8
i and the WSW, W, WNW & NW 22 5 sectors from the Environmental Repo rt.
Sectors II & III O-5 miles including Sector II 6
and the NNW, N, NNE & NE sectors from the Environmental Report.
_ r t
Zone Description Best Estimate Total Evacuation Time (Hours)
Sectors II & IV O-5 miles including Sector II and the ENE, E, ESE & SE 5
22 5 sectors from the Environmental Report.
Sectors I, V & IX Extension of the 900 sectors I and V zone to include 0-10 6
miles.
Sectors I, VI & X Extension of the 900 sectors I & VI zone to include 0-10 7
miles.
Sectors II, III &
Extension of the 900 sectors VII II & III zone to include 12 0-10 miles.
Sectors II, IV &
VIII Extension of the 900 sectors 8
II & IV zone to include 0-10 miles.
Heather conditions, particularly winter weather conditions
, have the potential for delaying evacuation.
If evacuation routes cannot be kept adequately cpen to ensure prompt and safe evacuation 3 con-sideration will be given to the implementation of alternate protective actions, such as a recommendatien to remain indoors.
i l
l l
y g-
.w p--
,e.
,w 9w w.--y.
--r y-my v
gr
- . Section 2 Evacuation Time Study A.
Introduction This preliminary evacuation time study was prepared by comparing data characteristic of the Byron Station 10 mile.
Emergency Planning Zone to simi:i.ar data from previously pre-pared studies for the Dresden, Zion, Quad Cities and LaSalle County Stations.*
Sectors identified in Figure 2-14 are based on the sixteen standard 22 5 degree sectors from the Byron Station Environmental Report.
Evacuation routes identified in Table A-1 were derived from a map analysis.
General zone characteristics in Table A-3 were compiled from d'ata contained in Section 2 of the Byron Environmental Report.
u
- Letter dated March 11, 1980,;
Subject:
Evacuation Time Estimates for aress near nuclear power plants Dresden Station Units 1, 2 and 3, Quad Cities Station Units 1 and 2, Zion Station Units 1 and 2, LaSalle County Station Units 1 and 2, Byron Station Units 1 and 2, Braidwood Station Units 1 and 2, NRC Docket Nos. 50-10/273/249, 50-254/255, 50-295/304,.50-373/374, 50-454/455/456/457 From:
D. L. Peoples, Director of Nuclear Licensing, P.O. Box 767, Commonwealth Edison,,0690 Chicago, Illinois c
To:
Mr. Brian K. Grimes, Director Dnergency Preparedness Task Group, office of Nuclear Reactor Regulation, U.S. Nuclear Regulatory Commission, Washington, D.C.
20555 l
AWigure and Table numbers are the same as those used in previously l
submitted analyses.
1 j
4-B.
Analvtical Technioue Total population, pepulation density, total number of vehicles and evacuation route capacity for each sector were compared to similar data for like sectora (i.e., 0-2 mile sectors were compared to other 0-2 mile sectors etc. ) from previously prepared s'tudies to select the sector that most closely matched a sector at the Byron Station.
All data from Table 3-1 of Previously analyzed stations except total population were then extracted to prepare Table 3-1 of this study.
Basic assumptions for this study are similar to those used to compute general zone characteristics, evacuation route capacity, notification times, and evacuation times pro-vided in previously prepared studies except where expanded below:
1.
Population compiled from the 1980 projection reported in the Environmental Report.
2.
Employees and visitors total (Table A-3, column
- 4) includes an estimate of 1,000 Ccamonwealth Edison and on-site contractor personnel, reported rnd estimated employees from major employers in the area, staff of educational institutions, and peak day attendance at parks and recreational facilities.
3 Residents are assumed to have one vehicle per dwelling.
Three persons per dwelling are assumed.
4.
Employees are assumed to have 0.8 vehicles per employee.
Visitors to recreational areas are assumed to have one vehicle for 3 persons.
. Sources of data used to compile the general zone charac-teristics are indicated in footnotes to the tables.
Previously prepared evacuation times for Dresden, Zion Quad Cities and LaSalle County Stations were computed using the three methods referenced below.
The midpoint of the resulting range of evacuation times was selected as the best estimate of evacuation time.
This result rounded to the nearest hour was used as the evacuation time for the most closely matching sector in this study.
1.
Model described in the prepared testimony of R. W. Houston on behalf of the NRC in the matter of Northern States Power, Tyrone Energy Park, Unit 1, Eau Clair, Wisconsin, October 7, 1976.
2.
Estimation of evacuation times utilizing the population density versus evacuation time curve described in " Evacuation Risk - An Evaluation",
USEPA Office of Radiation Programs, EPA-520/6 002; and 3
Estimation of available highway capacity and traffic volume utilizing a refinement of a method described in the prepared testimony of Jt2es A. Martin, Jr. on behalf of the NRC in the matter of Puget Sound and Light Company, Skagit Nuclear Power Plant, Units 1 and 2, Washington.
C.
Results Estimated notification, mobilization, and evacuation times for a good weather evacuation are provided in Table 3-1 (time
- 6~ -
estimates for evacuation of the general population within
~
10 miles of the station) nnd Figure 3-1 (estimated sector evacuation times).
Evacuation under most adverse weather conditions should not unduly delay evacuation since standard snow removal and traffic control practices will keep the highway open.
In extreme adverse weather conditions, consideraticn will be given to alternate protection such as advising people to re-
=ain indoors.
'nnen state and local evacuation plans teco=e more advanced, consideration will be given to methods of verifying notification and evacuation such as highly visible tags or handkerchiefs fixed to the door.
Information on special facilities has been extracted fro = the Environ = ental Report.
The special facilities listed in Table 3-1 and shown on Figures 2-2 and 2-3 consist of schools and recreaticnal facilities.
The peak use of these facilities has been considered in determining evacuation times for the general population.
Mobilization times for schools, determined by previous studies, is one hour for most facilities.
Mobilization time for recreational facilities deterrdned f_ =
m previous studies is an average of one hour with some facilities t
of comparable attendance requiring two hours to =ob111:e.
4
Section 3 Acknowledgements Commonwealth Edison wishes to thank the following state and local government emergency planners for their assistance with the preparation and review of this report.
Names and Affiliation Mrs. Leslie Schwartz State of Illinois Emergency Services and Disaster Agency (ESDA)
Mr. Jim Drymiller Ogle County Sheriff's Department Mr. Martin Eakle Oregon ESDA Coordinator Mr. Dave Smith ESDA Coordinator Region 2
8-N
/wmYo r...+..., p)
/
OGLE CO.
~
~
f s
,s s
\\
5 E
J'
[e 3
\\j
[$
,/\\
\\
\\d V'
A
/+
RIVER h'f s
LEAF
\\
- 7%
/
[
BYRON %.
/
d 12 VMJ
/./
N
/n
\\
- u STILLMAN 72 g
VALLEY
... o
, ~ !1 1
n, m
.~
w-
[
a O
-E
'l}I
'N)Y, l$
I
)~
.\\
x i
l g\\
O
\\
< -d
\\. MORRIS 4
y MT 64 SITE...s~~)p
/
/
6 V
\\
/
oREcob IN L
\\
l s
/
j r....
y y
a
\\
- r., b e s
\\ j/
1/1k N
u l'k b /
r
&7' S
T
[
/
0GLE Co.
LEE CO.
5 10 0
SCALE BYRON STATION FIGURE 2-1 GENERALIZED SECTOR EVACUATION MAP
N
- wmNo
~~~
f OGLE Co.
d
/
\\
HI river
\\
_ _N n
/
-m, LEAF y # 'I RIVER
,hs BYRCN
/
\\
~
STILLWAN g
72 yALLEY
\\
/
/
- sY f }E
\\,
I b
/
\\
E )i l'
\\
-E W-I
\\
g g\\
g h
O
\\
j l
WT 64 i
\\
.WORRIS
@,' v
'W
/
SITE
/
/
V
/
OREG0h 1-
\\
J
\\
I A
l
~
\\
H y/.
3
/
o
.; - v S
OGLE CO.
LEE CO.
0 5
30 m_.
__.J SCALE BYRON STATION See Table B-1 for letter code.
FIGURE 2-2 EDUCATIOI: I !STITUTIO::
.- N
., =, Y ~
f oste co.
~~
[
N
/
\\
m1 i
a
\\
sivER
-\\
g p f '? g
/
LEAT
/
atvER eracs.'
/
E'tEr" g
72 f
/
s
/
f) 6
\\
W-
- h
-E X'Ih yl "
I
\\
4,t r".
t 54 SITE
\\
/
/
0 r
\\c-b
/
4 Y
Y P,
\\^
/
L V
/
D h
\\
caEsop j
\\
/
N
/.
i x
a
\\
I f
~
i I
N, e
/
c-S
\\
p CGLE co.
LEE Co.
o s
to stale BYRON STATION See Tr/
Gr letter code.
FIGURE 2-3 RECREATIO!! ARD.S l
. N
/mNo N
~~
~~
/
OGLE CD.
~
N
/
\\
m1
/*[e
\\
_ _\\,,
LEAF g'7
/
RV
/
BYRON
/'/
N //'EE'"c" \\
/\\
/
'-J m
A
/
/
A;D Y
\\
y;
- s 4
t f
-E W-
'/- 1 M
\\
m
\\
X
%; a
,i 4
ITE
/
/
l
\\
h
\\
/
OREGC[
J
\\
/
X\\
H
\\>/
3
/
?
I[
/-
BEST ESTIMATE-GENEP_'
' POPULATION EVACUATH SECTOR TIMES HOURS I
'2 II 5
2 I&V 5
OGLE CO.7 g y7
,, g.
LEE Co.77g777 6
II&IV 5
I,V&IX 6
o 5
I, VI&X 7
'II,III&VII 12 II,IV&VIII 8
senE BYRON STATION FIGURE 3-1 ESTIMATED SECTOR EVACUATION TIMES
- ~ ~
~--e TABLE 3 1 BYR04 STATION TIT ESTIMATES FGt EVACUATION OF TtE CEPERAL POPULATION WITHIN 10 MILES
~
OF TT STATION ESIIMAIED C000 NEATIER EVACUAIION IIPE t
i ESIIMAIEU ESTIMATED NOTIFICATION RAtCE or ESTI-RANCE OF COPFARABLE 1980 TIPC IN EXCESS ESTIMATED HAIED EVACUATION ESTIMATED TOTAL DEST SECTOR FROM EVACUAIION OF 15 MItCTES MOBILIZATION 1 RAVEL TI>C EVACUATION ESTIMATE PREVIOUSLY PnPULATION (1)
(MIPUTES (2) TIPE (MIPUTES) (2) D OURS) (2)
TIhE (HOURS) (2) DOURS) (2) PREPARED ESTIMATE 0-2 Mlles_
Sector I 40)
(a 20 I-3 3-9 2
Lahlte Gator I
- -f or II 5, Fv.
IS Ni
' U.
4-14
.S
?! 9 ^
- 1 t-
.u l - 18 2-lJ Orts @n L ctor Sectors I, VI 1,643 15-30 20 1-7 2-8 8
Dresden Sector I, III-Sectors II, III 24,526 15 20 4-13 5-14 6
Zion Sector I, VII I
Sectors II IV 5,584 15-30 20 1-9 2-10 5
Dresoen Sector I, II p
r g
I, III I
l 0-10 Miles Sectors I, V, IX 13,168 15-30 20 2-13 3-14 6
Oresden Sector Sactors I, VI, X 10,103 30-45 20 1-19 2-20 7
Drescen Sector I, III, VIII Sectors II,III,vII 26,672 95 20 4-20 6-22 12 Quad Cities sector II, IV, IX Sectors II,IV,vlII 8,669 150 20 2-14 5 8
- LaSalle Sector I, VI, X I, VI, X (1) From TaDIe A-3 j
(2) Results of co marable sector in prevlously prepared report as indicated in last column F
rat 6
r 4
1 i
)
4 er gh a/
rh ee vV 00 0
O 0
0000 000 000 A(
00 0
J 0
0000 000 000 yy 0,0, 0,
0, 0,
0,0,0,0, 0,0,0, 0,0,0, tt 11 1
1 1
1111 111 111 ii l c ia cp aa FC sen a.
1 S
f 22 2
2 2
2222 222 222 E
c T
U O
o R
N NN OO S
1 II Er e
d e
m TT A
AA d
S R
v a
T U R
dih n
E SC d
k RRc L
A e
a e
r y
l o
e eyJ t
B NV l oR r
ubi i
x A
OE it C
g C l
T R
v a
ad i
YL S
N sSn d
t en c
BA y
a u
nfa a
P d
d adh M
o m
f I
a a
DaC MNr C
o o
o y
e r
N R
R oRo b
odG e
I y
t t
S t a R
t h
h h
d.
od E
f t
P i
Sc c
ScE eW d
NRn a
l r
r r
r a
a i
du u
du4 d
.o de d
d c
ah h
ah6 WaWR aeNH ERE e
a oC C
oC o
Nok F
R R
t 4R2r Rudd 2b4 a
n n
nl 6
7e 2
aaa 7m6 c
ra a
ral s
v rwoo o
iX em m
emI
.e
.i
.ehRR
.c dI vr r
vr l nlR l ws lll n
ie e
ie lil
- l oi l ol i,
RG G
RC IPI
- ITK I HI V
n, o
iI tas ur co atvc I
ee I
V S
I I
I f
V V
oo t
I I
nn s
1 s
I I
I I
oi e
I 1
e e
l i
l s
s s
s t s r
i r
r i
r r
r r
cw o
M o
o M
o o
o o
eo Z
t t
t t
t t
rl 2
c c
5 c
c c
c iF e
e e
e e
e D*
0 S
S 0
S S
S S
I
)
TABLE A-1 (Continued)
BYRON STATION PRINCIPAL EVACUATION ROUTES Facility Average Zone Facility
- No. of Lanes Capacity (Ven/hr) 0-10 Miles Sectors I, V, IX River Road S to Oaysv111e 2
1,000 Road S German Church Road S to Ill.
2 1,00G 64 E to Chana Road S Ill. 2 S 2
1,000 Sectors I, VI, X Ill. 64 W fed by Hud Creek Rd.
2 1,000 i
Pines Road W 2
1,000 Ill. 72 W 2
1,000 aaRiver Road S to Oaysv111e 2
1,000 8
i Road e
l Sectors II, III, VII Ill. 2 N 2
1,000 e
Tower Road N to Montague Rd E 2
1,000 Kishwaukee Road N fed by 2
1,000 River Road N and German i
Church Road N Sectors II, IV, VIII Ill. 72 E 2
1,000 Holcomb Road E 2
1,000 Ill. 64 E 2
1,000 a01rection of evacuation indicated after facility name.
== Flows into Sectors I, V, IX I
I 4
TABLE A-3 BYRON STATION EFERAL. ZOPE CHARACIEARISTICS EWLOYEES DEkSIIY E R OYEE E QJIRED AREA RES10ENT
+
TOTAL TO GE (PERSONS)
RESIDENT k VISITOR PERSONS /
ZorE (50 MI)
(1)
VISITORS (2) EVACUATED (3)
SQ. MI) (3)
OWNE0 (4)
OtrlED (5)
TOIAL (3) WHICt.E (3) 0-2 Miles Sector I 6.3 353 50 403 64 118 17 135 3.0 Sector !!
6.3 104
+5,000 5,104 810 35 2,13) 2,168 2.4 0-5 Miles Sectors I, V 22.7 3,017 6,647 9,664 426 1,006 2,833 3,839 1.7 i
Sectors I. v1 22.7 933 710 1,643 72 311 237 548 3.0 Sectors II, III 22.7 3,099 21,427 24,526 1.080 1,033 7,816 8,849 2.8 H
Sectors II, IV 22.7 534 5,050 5,584 246 178 2,150 2,328 2.4 O-10 Miles Sectors I, y, IX 81.64 6.496 6,672 13,168 161 2,165 2,844 5,009 2.6 Sectors I, VI, X 81.64 6,921 3,182 10,103 124 2,307 1,365 3,672 2.8 Sectors II, III, v!!
81.64 4,901 21,771 26,672 327 1,634 7,931 9.565 2.8 Sectors II, IV, VIII 81.64 3,555 5,114 8,669 106 1,185 2,201 3,386 2.6 Footnotes:
(1) E.R. Table 2.1-2 (1980 projection)
(3) Computed from cata on this table.
(2) E.R. Table 2.1-10 (Major employers)
(4) Based oc 3 persons per venicle.
E.R. Taule 2.1-11 (staff only)
E.R. Tante 2.1 9 (peak cay estimates)
(5) Based on 0.8 venicles per employee and 3 visitors per vehicle.
+1ncluoes an assumeo 1,000 ECo & Contract personnnel on site.
g,
- h n
Byrcn TABLE B-1
( tart.E 2.1 11 From E.R.)
EDucAtitw INSTitt*Tf 0*e9 wf1NIN 10 estLES er T*,r eYMOM
'TATION MAP orstaNet ANo oraterroN SECTOR 2Nstituri m s raw sitt CuoEs EN, nous EN, i 26 - is77 starr REFERENCE
- avron, Tllinois 111 syron Middle and High school 3.7 alles NNE 7-12 4,5 26 A
1 111 Mary Morgen Elementary school 3.7 miles NNE R-6
$19 22 Creeon, Illinois V
r hues B
V oregon wish school s.1 elles ssw s-12 624 n
B V
Etnyre Middle school 5.1 miles ssw 6-8 428 le B
V Jerre, son sle.entary school s.1 enes ssw 3-s 274 12 B
V
- c. a. nanna Ex.mentary school 5.1 miles ssw K-4 S$7 21 B
V Nash Elementary schooi 5.1 miles ssw g-2 264 12 B
Private t a Y
Village of Progress Inc.
5.1 miles ssw 82 21 ~
b o
sel11 man valley. 7111nois VIII stilla.n valie2 nigh school s.7 alles ENE s-12 421 22 C
V111 Male Jr. High school S.7 miles ENE
$=8 263
'la C
V111 Mighland Elementary school S.7 miles ENE K-5 479 22
.C Leaf Rieer, filinois X
test meer communit, school 6.s miles wNw x-12 ses a
D Pount Morris. Illinois 5
Mount Morris High school 7.5 miles wSw 9-12 3a1 1,
E X
Mount Morris Jr. High school 7.S* miles Wsw 6-8 215 la E
X Mount Morris Eiement.ry school 7.s nues wsw
-s 416 2e E
X Mount Morris special Education E
svilding 7.5 miles wsw 48 5
Chana, filinois IX Chana Elementary school 3 elles sc K-5 e5 5
F Scarce
....r.cas state 1:sts of Id. ration (1977I e scurces Clamar (1977)
- Map references apply to Figure 2-2 i
i _.
e-
Byrcn Tablo B-l'(centinucd)
(TABLE 2.19 from E.R. )
MAJOB RECREATIONAL ARIAS WITNIN 10 M7Lt$ Of TNC STRON STATION
~
DISTA>ct 6 MAP DEC REATION Al.
DIRICTION EST!PLA7TD NUA1.
ESTIMATED PEAR ArrNeue[f1976 REFERENCE ***
SECTOR ARzA AcazAce rnOn s:Te oar m rwower 11 Motosports Park 50 1 elle M 20,000 - 40,000 4,000*
A 1
Alver head Camping 6 Marina 30 2 alles E NA 50**.
B U
pock River NA 2.2 alles 16,900 415 0
U D
Mt. Morris Soat Club NA 2.5 miles Nw 3,400 45 IV weld Memorial Park 35 3 m!!as ENE MA 50**
E III Syron Dragway 190 3 miles N 100,000 - 150,000 12,000 F
W The stronghold 460 3.5 miles wsw 13.300 200 G
V
.owd.. ee.oriat st.te Pars 207 3.5 alles sw 375,000 5,075 H
111 Late Louise 52 4.5 miaes wwt 20,000 - 40,000 4,00
- I V
oresca co=atry c1=6 4.5 =il.a ssw NA 200**
J U1 Camp Medill McCormick 300 6.5 alles NNE 5,400 144 5
IX castle noc= state,Parm 6 L
Nature Preserve 1,956 7.0 alles Sw 3.260 20 X
white Pines manch 100 0.0 n!!es WSw 8,000 2:0 M
M1 Fuller Memorial Forest 200**
N Preserve NA 9.5 miles NE NA X
Nansens*Nideaway 160 9.8 alles wsw 10,000 100*
O X
white Pines teer Park 00 9.8 miles usw 60,000 - 100,000 1.500 0
sourcesa Af flert.avgh (19773. Black (1b ? ?), Blackha.k Ni!!S Rescurce Conservation and revelopment Co..sittee (no' da te e. Collins (19 71s, E d l ur.#. 115 7 7), Marsen (1977), !! ayes (19771, Illinois reparte.ent of Cemservation fl976al. *effrey 11177), leek (1977), Lattle (1977), Faltby (1577e, *:stosports Park (1977),
and warner (1977).
8Attendaace figures have been rounded of f, hA not available.
' State of Illineas Nature Preserve.
- Average of assumed 100 days use each year.
- Information not available.
Numbers represent best estimate.
- " Map references apply to Figure 2-3 17 -
y--
e
-y-r-
't 4
PRELIMINARY EVACUATION TIME STUDY OF THE 10-MILE RADIUS EMERGENCY PLANNING ZONE AT THE 4
BRAIDWOOD STATION AUGUST 1980 Prepared by Commonwealth Edison Company f
e e
e 1
A
+y w
,em-,
-n,-
ygw 4a,--wg g.y--.gmge gwwvg w y *g y.gy7 94.*wg-wg 7 g. w ww y----y-ggp pgeg - 97Mg.aweq w, -g 9 e om yg -sywo
- - - +g a
w
TABLE OF CONTENTS 4
Section Title Pace 1
Summary..........................,,
1
~
2 Eyacuation Time Study..............
3
~
3 Acknowledgements....................
7 Figures 8
i Tables 12 I
e i
I t
i 1.
. ~...., _ _., _ _ _, _ _, _, _, _, _ _ _..,, _, _.
a LIST OF' FIGURES Figure 2-1 Generalized Sector Evacuation map 8
Figure 2-2 Educational Institutions 9
Figure 2-3 Recreational Areas 10' Figure 3-1 Estimated ~ Sector Evacuation Times-11 4
4 i
O
,9' e
i i
j e
Li
-LIST OF TABLES Table Title Page 3-1 Estimated Evacuation Time of the General Population Within 10 Miles of the Braidwood Station.
12 A1 Principal Evacuation Routes 13 A-3 Evacuation Zone General Characteristics 15 B-1 Special Facilities Within 10 Miles of the Braidwood Station.
16 O
I I
iii
Section 1 Summary I'n response to a request from the U.S. Nuclear Regulatory Commission (NRC), the Commonwealth Edison Company has prepared an assessment by sector and combination of these sectors, of the time required to evacuate the area located within 10 miles of the Braidwood Station, Braidwood, Illinois.
This report is based on emergency planning data available at this time and its findings are subject to revision after the state and local emergency plans have been fully developed.
This report has been reviewed by state and local agencies.
Using the method and assumptions discussed in Section 2, the best estimate evacuation times by zone are:
Zone Description Best Estimate Total Evacuation Time (Hours)
Sector I O-2 miles in the 1800 sector 5
including the SSW, SW, WSW, W, WNW,161, IREf & N 22.5 sectors from the Environmental Report.
Sector II O-2 miles in the 180o sector 5
including the NNE, NE, ENE, E, ESE, SE, SSE & S 22 50 sectors from the Environmental Report.
Sectors I & V O-5 miles including Sector I 5
and the SSW, SW, WSW & W 22 5 sectors from the Environmental Report.
Sectors I & VI O-5 miles including Sector I 6
and the WIni, NW, NIRf & N 22 5 sectors from the Environmental Report.
Sectors II & III O-5 miles including Sector II 5
and the NIF, HE, ENE & E 22 5 sectors from the Environmental Report.
Sectors II & IV O-5 miles includinc Sector II 8
and the ESE, SE, SSC & S 22 5o
e-l Zone Description Best Estiente 1
Total Evacuation Time (Hours)
Sectors from the Environmental Report.
Sectors I, V & IX Extension of the 900 sectors 8
I & V zone to include 0-10 miles Sectors I, VI & X Extension of the 900 sectors I
& VI zone to include 0-10 miles 12 Sectors II, III &
Extension of the 900 sectors II 12 VII
& III zone to include 0-10 miles Sectors II, IV &
Extension of the 9C ', sectors II 9
VII
& IV zone to include 0-10 miles Weather conditions, particularly winter weather conditions, have the potential for delaying evacuation.
If evacuation routes cannot be kept adequately open to ensure prompt and safe evacuation, con-sideration will be given to the implementation of alternate protective actions, such as a recommendation to remain' indoors.
Tt
.g_
w
.~
,m-Section 2 Evacuation Time Study A.
Introduction This preliminary evacuation time study was prepared by comparing data characteristic of the Braidwood Station 10 mile Emergency Planning Zcne to similar data from previously pre-pared studies for the Dresden, Zion, Quad Cities and LaSalle County Stations *.
Sectors identified in Figure 2-1J are based on the sixteen standard 22 5 degree sectors from the Braidwood Station Environmental Report.
Evacuation routes identified in Table A-1 were derived from a map analysis.
General zone characteristics in Table A-3 were compiled from data contained in Section 2 of the Braidwood Environmental Report.
- Letter dated March 11, 1980, Su bJect:
Dresden Station Units 1, 2 and 3, Evacuation Time Estimates Quad Cities Station Units 1 and 2, Zion Station Units 1 and 2, LaSalle County Station Units 1 and 2, Byron Station Units 1 and 2, Braidwood Station Units 1 and 2, NRC Docket Nos.- 50-10/273/249, 50-254/255, 50-295/304, 50-373/374, 50-454/455/456/457 From:
D. L. Peoples, Director of Nuclear Licensing, Commonwealth Edison, P.O. Box 767, Chicago, Illinois 60690 To*
Mr. Brian K. Grimes, Director, Emergency Preparedness Task Group, Office of Nuclear Reactor Regulation, U.S. Nuclear Regulatory Cor. mission, I!a'shington, D.C.
20555 AFigure and Table numbers are the same as those used in previously submitted analyses.
l
[
w a
w-
+;---o
.4 B.
Analytical Technicue Totil population, popula51on density, total number of vehicles and evacuation route capacity for each sector were compared.to similar data for like sectors (i.e., O 2 mile sectors were compared to other 0-2 mile sectors, etc.) from
~
previously prepared studies to select the sector that most closely matched a sector at the Braidwood Station.
All d9 n t
from Table 3-1 of previously analyzed stations except total population were then extracted to prepare Table 3-1 of this study.-
~
~
Basic assumptions for this study are similar to those used to compute general zone characteristics, evacuation-route capacity, notification times, and evacuation tir.c=
provided in.previously prepared studies except where expanded below:
1.
Population compiled from the 1980 projection reported in the Environmental Report.
2.
Employees and visitors (Table
-33 Column 4) i l
total includes an estimate of 1,000 Commonwealth l
Edison and on-site contractor personnel, reported and estimated employees from major employers in the area, staff of educational institutions, and l
peak day attendance at parks and recreational facilities.
I 3
Residents are assumed to have one vehicle per dwelling.
Three persons per dwelling are assumed.
4.
Employees are assumed to have 0.8 vehicles per employce.
Visitors to recreational areas ar'e
---n----
_5_
assumed to have one vehicle for 3 persons.
l Sources of data used to compile the general zone charac-teristics are indicated in footnotes to the tables.
Previously prepared evacuation times for Dresden, Zion, Quad Cities and LaSalle County Stations were computed using the three methods referenced below.
The midpoint of the re sulting range of evacuation times was selected as the best estimate of evacuation time.
This result rounded to the nearest hour was used as the evacuation time for the most closely matching sector in this study.
1.
Model described in the prepared testimony of R.W.
Houston an behalf of the NRC in the matter of Northern States Power, Tyrone Energy Park, Unit 1, Eau Clair, Wisconsin, October 7, 1976.
2.
Estimation of evacuation times utilizing the Population Density versus Evacuation Time curve described in " Evacuation Risk - An Evaluation",
USEPA Office of Radiation Programs, EPA-520/6-74-oo2; and 3
Estimation of available highway capacity and traffic volume utilizing a refinement cf a method described l
l in the prepared testimony of James-A. Martin, Jr.
on behalf of the NRC in the matter of Puget Sound l
and Light Company, Skagit Nuclear Power Plant, Units 1 and 2, Washington.
1
.6 -
i C.
Results Eshimatednotification, mobilization,andevacuation t
times for a good weather evacuation are provided in Table 3-1 l
(time estimates for evacuation of the general population with-in 10 miles of the' station) and Figure 3-1 (estimated sector evacuation times).
Evacuation under most adverse weather conditions should not unduly delay evacuation since standard snow removal and traffic control practices will keep the highways open.
In extreme adverse weather conditions, consideration will be given to alternate protection such as advising people to remain in-doors.
When state and local evacuation plans become more ad-vanced, consideration will be given to methods of verifying notification and evacuation such as highly visible tags or handkerchiefs fixed to the door.
Information on special facilities has been extracted from the Environmental Report.
The special facilities listed in Table B-1 and shown in Figures 2-2 and 2-3 consist of schools and recreational facilities.
The peak use of thes facilities has been considered in determining evacuation times for the general population.
Mobilization times for schools, determined by previous studies, is one hour for most facilities.
Mobili-zation time for recreational facilities detenmined from previous studies is an average of one hour with some facilities of com-parable attendance re.., airing two hours to mobilite.
W
~
,,y
, --- e
.. Section 3 Acknowledgements Commonwealth Edison wishes to thank the following atate and local governmental emergency planners for their assistance with the preparation and review of this report.
Names and Affiliation Mrs. Leslie Schwartz State of Illinois Emergency Services and Disaster Agency (ESDA)
~
Mr. Leo Parke ESDA Coordinator - Region 5 Mr. Joe Temple Grundy County ESDA Director Mr. Joseph J. Talarico Will County ESDA Director Mr. Chester Grygiel Chief Braidwood Fire Protection District l
l l
J
f.
lN
_t
/
66
[
[
h
/,
~
y j n (Gb
~
\\
/
R4 j
\\
h 7
/
[
CARBON HILL EILEin WILMINGTON U
/
~
/ DIAVOND
/
7 t ro2 N
COAL g
/
C l
BRAIDWo0C 5
- [ ITY 4
3ZI y x
r m
~
l Q
~
g m
E\\
N GCDLD I/d w-1
-E 4
/ SITE '.N t
\\
"v F ~. m 12 9 VILLE f
g s%
sai:t C -
I WILL CO.
/
KANKAKEE CO.___/
/
/i
_4Aaouca
/
\\
1r w
s 30L x / L_
-P 1 e
\\
wituiscTON /
g
/
esscx
/
/
/
\\
/
i
_ _\\
/
cRuNor, CO.
xtmucsrcuj CO.
-4D
~ _-
r-___-.
y S
l 0
5 10 m
~,.
SCALE BRAIDWOOD STATION FIGURE 2-1 GENERALIZED SECTOR EVACUATION MAP l
lN l
Ds' N
/
/
/,
~
e%
/
j%
Gb
~
8 x
Ej,i
/
\\
/
gf x.
\\
/
CARBON HILL l
witulNGToN
/
CLED dA
~
/
,pT,t _3@cI//
M k '
EI
\\
a A $' *7' f,A,, -,
l
m h
IM
-r w-k ss y
/ SITE e
ear.: thy g
12 9 VILLE f
witt co,
/
KANKAKEE co.
/
/i
-l EgARDNER
/
\\
n
_w
@So2H
/J
-k9 J
/
wituissicN /
g
/
ESSEX
/
/
R-lx
/
,Co.j_
/
- _ _\\
- cauuo, xumcsrcujCo.
y
~ a--
. T
/
S l
0 5
to SCALE BRAIDWOOD STATION FIGURE 2-2 See Table B-1 for letter code EDUCATIO:t I :STITUTICI!S
10 -
I y
f 9
f
/
$6) f
/
A N
['
5 I
/
/ 4 (53's 4
'\\
\\
7 CARSON HILL ULED WILUINGTON 0 0$ys'9p>n
/
g zm4p s
Q
\\
l' A -
'R m
w:
if I/I-Q
-E l
k es y
'/ SITE
=
~
ia E,RACEN2 s'
}
(29 VIL f
WILL CO.
__ ~/
[
d KANK1KEE CO.
gI'
/
QARONER
\\
II N
/
WILMI G SE g
/
/
\\
/
GRUNDY, CO.
NLIVINGSTON CO.
/
/
m 4
S l
0 5
10 i
W
,_ m __ _ - - _ _ _ -
SCALE l
BRAIDWOOD STATION I
See Table B-1 for letter code.
FIGURE 2-3 I
RECREATIO!!AL AREAS I'
,,e--
. - lN t
/- 3
' TG ~
i 7h
~
[
h cbx
~
hlN
$5 gff x
I
/
\\
s CARSON HILL
/
EILEn WILM NGTON
[~
h
~i t 102
\\
/
COAT _/ D'**0hDI E
\\
p[ CITY I
E R AIDWOOD
\\ %
\\
E n'
F~'~L E\\
x.
i m
2 cc N
W-
/
-E
~'
[ SITE e
1
\\
66 Y N
BRACEN]s'
}
j 12 9 VILLE f
WILL CO.
/
KANKAKEE Co.
/
QARONER
'\\
g ll
./
/
x dCf'- ds]
/
y
/
/
k, i
GRUNDY, CO.
NLivlNGSTON CO.
/
~
4 BEST ESTIMATE-GENEE l
S POPULATION EVACUATI l
SECTOR TIMES HOURS I
5 II 5
.I&V 5
I & VI 6
m m_ _
_S 0 111 h
g 37 SCALE I,
y & IX 8
I, VI & X 12 II, III le VII 12 II, IV &
[RAIDWOOE STATION Firl'RE 3-1 ESTIMArED SECTOR EVACUATION TIMES
TABLE 3 1 DRIA0w000 STATION T18E ESTIMATES r0R CVACUATION ff itC CEPERAL POI'ULATID4 w1TMIN 10 MILES Or 14C. STAfl0N ESilMAIED COUD WEAllt.R EVACUA110N
.d t.SilM4TED ESTIMAi[0 toilrICA110N ANCE Or CST 1-RNCE or C0f'AAAOLE 1980 116E Iti EXCESS E511MA1E0 HAl[0 EVACUATION E511 MATE 0 TOYAL BEST SCCIOR rROM EVACuATIOri 0F 15 Mito1ES MuRILIZATION 1 RAVEL IItC EVACUATION E5f! MATE PREVIOUSLY P(Plt.ATION (1)
(M!to!ES (2)
T!kE (Mir4JTES) (2) DIOURS) (2)
T!>E DOMS) (2) DOJRS) (2) PREPARE 0 ESTDETE 0 2 viles 5 ctor I 2,927 15 20 3-14 4-14 5
Zion Sector !
Sector 11 1,401 60 20 1-6 2-7 5
Quad Cities Sector 11 0 5 6 tiles Sectors I, V 6,268 15-30 20 19 2-10 5
Dresden Sector
- 1. 111 Sectors 1 V1 14,296 15 20 4-13 5 14 6
zion Sector '
I, II I ;
Secte.rs II, It!
a,93) 15 30 20 1-9 2-10 5
Dresden Sector I, III H
Sectors 11, lY 2,565 70 20 1-8 37 8
Quac Cltles M
Sector 1 VI e.
0 10 Miles S.ctors I V, 14 6.032 150 20 2 14 5 17 8
LaSalle Sector 1, VI, X Stdurs1 V1,X 9.597 95 20 4-20 6-22 12 Coao Cities Sector I, VI, X 5ec t ors, ll,Ill,VII 13,841 95 20 4-20 6-22 12 Quao Cities Sector
- 1. VI, X 5e otors II,1V,v!!!
2,245 100 20 1-8 3 10 9
Coad Cities
- l. V, IX (1) rrim Table A.)
(2) r.. tults or cimir.ible sector in previcusly preparea report es indicateo in last column.
I TABLE A-1 BRAIDWOOD STATION PRINCIPAL EVACUATION ROUTES i
Facility Average i
Zone Facility
- No. of Lanes Capacity (Veh/hr) 0-2 Miles Sector I Ill. 53 S 2
1,000 111.129 S 2
1,000
"" Local Road to I55 W 2
1,000 Sector II I11.53 N 2
1,000
- I11.129 N 2
1,000 2
0-5 Miles Sector I, V 111.53 then Local Road to Ill.17 S 2
1,000 111.129 then Local Road to ISS S 2
1,000 Ws Local Road to Ill.47 S.
2 1,000 8
- Local Roads from S. Wilmington to Essex then S. to Ill. 17 E-S 2
1,000 Sector I, VI Ill. 113 W.
2 1,000 Local Road N to State Park then W. Ill. 47 2
1,000 Sectors II, III Ill. 53 N 2
1,000 Ill. 129 N 2
1,000 Ill. 113 E 2
1,000 Sectors II, IV Local Road S 2
1,000
" Direction of evacuation indicated after facility name.
- Limited usefulness.
5 6
l TABLE A-1 (Continued)
, ORAIDWOOD STATION PRINCIPAL EVACUATION ROUTES Facility Average Zone Facility
- No. of Lanes Capacity (Veh/hr) 0-10 Miles Sectors, I,V,IX Ill. 53 S then Local Road S to Ill. 17 2
1,000 Ill. 129 S then Local Roed W to ISS then S.
2
.1,000 Local Road W to Ill. 47 2
1,000 Sectors I, VI, X Ill. 113 W 2
1,000 Local Road W to Ill. 47 2
1,000 (Sector 1 only) Local Road to 4
155 then S. on I55 2
500
- I Sectors II,III,VII Ill. 53 N 2
1,000 3r n'
Ill. 129 N to 155 N 2
1,000
- 1 155 N. of river 4
1,500 Ill. 102 S.
2' 1,000 Local Road E. to 157
.2 1,000 Sectors II,IV,VIII Local Road S. to Essex then S to Rt. 17 then E on Rt. 17 E 2
1,000 Local road E to Bonfield E 2
1,000
- 01rection of evacuation indicated afer facility name.
l
~
o
]
5 TABLE A-3 BRA 10w000 STATION CEPERAL 20NE CH4RACIEARISTICS EWLOYEE5 DEt4SITY L WLovEE &
HLQuil(0
' AAEA RE510ENT TOTAL 12 DE (PERSONS)
RES10ENT VISITOR PERSONS /
70rE (50 MI)
(1)
VIS110RS(2)
EVACUA1ED (3)
SQ. MI) (3)
OWNE0 (4)
' OwrED (5)
TOTAL (3) vCHICLE (3) 0-7 Miles Sector I 6.3 1,615
- 1,312 2.927 464.6 538 910 1,448 2.0 Sector II 6.3 751 650 1,401 222.4 250 240 490 2.9 C-5 Miles Sectors 1. V 22.7 2,617 3,651 6,268 276.1 872 1,801 2,673 2.3 Sectors I, VI 22.7 7,023 7,273 14,296 629.8 2,341 3,018 5,359 2.7 8
Sectors II, !!!
22.7 4,283 4,650 8,933 393.5 1,428 1,573 3,001 3.0
' Sectors II, IV 22.7 1,086 1,479 2,565 113.0 362 440 802 3.2 g
U1 0 10 Miles I
Sectors I, V, IX 81.64 6,032 3,68S 9,720 119.1 2,011 1,830 3,841 2.5 Sectors I, VI, X 81.64 9,597 11.585 21,102 259.5 3,199 4,455 7,654 2.8 Sctors 11, III, VII 81.64 13,841 38,449 52,289 640.5 4,614 13.211 17,825 2.9 5tetors II, IV, VIII 81.64 2,245 1,679 3,Y24 48.1 74S 506 1,254 3.1 t
.,J G J :-..e.i o, n. u v 1.'.i t h a pu c N...,
....I v:
i.a. u. e.
E.H. Isole 2.1-6 (pc w cay estimates)
- Incluaes an asevneo 1,000 CECO & Contract personnel on slte.
1 e
I.
Brcidwood Table B-1
( TAst from E.R.)
a 2.1-EDUCATTON INSTITUT!ONS Wf? MIN 10 Pf t.ES OF THE BtAIDwCOD STATION MAP DISTANCE AND DIAICTION EN rot 1JtENT STAFF REmERDiCE4 SECTOR
!=sT1Ter2 0=s raea sire cuers 2'75-l*2s 1975-1,,6 r
Braidwood, 111& note A
11 staidwood Elementary 1.4 miles NNE K-.
635 3.
11 Reed Cust.or High 1.4 miles NME 9-12 29s 2o A
Braceville, filinois I
sraceville Elementary 2.. miles sw E-S 256 12 B
Coal City, filinois C
VI Coal City Elementary 3.5 miles NW K-$
661 20
=
VI Coal City High 3.5 miles Nw 9-12 468 28 -.
C VI Coal City Middle 3.5 miles Nw 6-8 331 16 C
Essex, tilinois IV rasa. ziemenury s.o miles sse 1-6.
Go 4.,
D south wilmington, Illinois E
15 south wilmington Consolidated Elementary 5.2 miles SSW K-t 133 9
Cardner, filinois IX C.rdner riementary s.3 mil.s sw K-s 26 13 F
1X Cardner-South Wilmington F
Township nigh school 5.3 miles Sw 9-12 277 15 Custer Park. Illinois N1 Custer Park Elementary 5.3 miles E K-8 198 13 G
Wilmineten. Illinois VII truning tiementary 6.o alles NE R-5 2ao 11 H
N1 1 J. Stevens ".iddle 6.o miles NE 6-8 489 22 H
H N1 Wilmington High 6.1 miles NE 9-12 634 3.
N1 St. Rose Schoola 6.2 miles NE 1-8 221 H
N1 central tienentary 6.3 r.iles NE K-$
$91 24 H
Sources !!!inois State board of Lducasson (1977)..
- $ource:
Flore11a (1977).
- Map reference applies to Figure 2-2. - -., _ _
, +. - -
e t
Braidwood Table B-1 (continued)
(r..Le3.i.6 from E. R. )
MAJon DCC9 FAT 10 MAL ADIAS WIrMIN 10 MILrs or rMt paAIDwo00 STATtose
~
~
~
0:sra ce 6 MAP SECTOR DIRrCr!ON 1976 7UTAL E37 04,2.MAftD PEAI REFERENCE
- nrennrio:.42.====
rea sire a trm cr.
rre m uer State reellit ies oes,saine. con.orvatio.
X Asea S miles N 92,043 1,000 n
b 3
E con.e use crairie st se o
Park 9 miles NNw 60,720 44 B
C V11 Rankakee River State Park 9 miles E 3,447,951 33,0008 '
O E
111:nois and Michi,..
canal state trail D
Cicha.nahon Park Access) 10 elles N 99,000 000 2000*
1DrAL MEM'BER$ NIP
~.
Private Parts and Clubs (familles)
I Cwicato measse C2 aI 300**
E 0.s w ie sw 7s II traiewood accreataon Club 9 2 miles at 2.350 600 F
IV si tn viinin,on.
,ts.e...
Clubh G
3 miles sst
.1.750 600 W
Area 1 Outdoor Club 3.s miles N 200 II III wu.in,to ne _ao.
Area Club,-
I 3.s miles NNE 150 3.000 IV rondero.a sports.en. Ca * *
..u.. :
207
.'15 2s J
V so.inwitie,sonrige...
K Beech and Park Club 4 alles $$w 1,800 2.100 1Il whil County Sportsme'a*.
clos b
31.. =c sse
.00 III ro Ca.ssin aoca secreatio.
200 M
4.s asu e. =
YI Ceco Daployees Reereation Association.
3
.m s.iie.
w s00 3,000 N
YI, Coal City Area ClubI s miles www 1,600 4,500 Q
IV su. secte.u a Cie s nue. s a
200 P
VIII samor.. shore.
6 13.. s 200 Q
E Dresden u.es Sports Club (PubliclI R
? miles NNw 350 Rainbow Council Scout Reservation!
7 alles snr 6.000 1,000 b
E Goose Lake Club" 7.5 miles www 736 SCO T
1 Notes asterash (*) ardacates information not available.
- 5ource 111&ncan Departnent of Ccaservatson (1876ct.
bSourcer Doyle 83977).
' source:
Nyhoff (19773.
Soureer Classen 839771
'Aources Schwiesow (1977).
Isourcer comwealth Edsten Cc-sany (1973).
I&ource Chi) man 411773.
Sources bvorak (1977).
Isourcet boctwane (19779.
I b.ourcar Dndst* 82s775
%urrer Erset fl*778.
' Source.
Enert 831771 "Sorree-ta**tatta ll*773.
- Note:
Peak attendance for Chica o Sea le Club revised grahicakfrom 1,500 toerror or one day event to produce 1,500 do r
oO case on assumed typo-attendees from 75 member families.
Map ref'erence applies to Figure 2-3 e