ML20137K054
| ML20137K054 | |
| Person / Time | |
|---|---|
| Site: | Fermi, 05000000 |
| Issue date: | 05/17/1972 |
| From: | Eric Thomas DETROIT EDISON CO., LEBOEUF, LAMB, LEIBY & MACRAE |
| To: | Boyd R US ATOMIC ENERGY COMMISSION (AEC) |
| Shared Package | |
| ML20137K014 | List: |
| References | |
| FOIA-85-776 2601, NUDOCS 8601230352 | |
| Download: ML20137K054 (36) | |
Text
~
6-LAW OFFICES OF LEBOEUF, LAMB,LElBY & M ACRAE 1821 JtrrensoN PLAcc,N.W.
WAS HIN GTON,0. C. 2 o o 36
- .RVI N E. U PTON ONE CHASE MANMATTAN PLAZA EUGEN E 9. THOM AS. JR.
N EW YOR M, N. Y. IOOO 5 (eon Aa 0 m. T.O S"
hy D, MM HA3RY H.VOlGT WAS68tNGTON TELEPHONE wasmessevoas pastetes
4 202 FEDcRAL s Olu
'.y;
.,,i,
~
CASLE ADDRESS
. ;. ~
g
,%g k LAL ALU, WAS HINGTON D. C.
u'.'O
.3
\\
,w*
..' e
-..x
-'G
'.~i+! !sis 5g,$,.
f.J
. A.'3>
s
. ~ -
Mr. Roger S. Boyd
'A
{[.,
7 Assistant Director for f_%_
RAR Boiling Water Reactors f\\{'#
' 3_ fj k
Division of Reactor Licensing
-l C W I.'W
3 Atomic Energy Commission
'DWH Washington, D.C.
20545
~CET~~~HP-REO g. - File Re:
The Detroit Edison Company AEC Docket No. 50-341
Dear Mr. Boyd:
As counsel.for The Detroit Edison Company, we hereby transmit three signed originals and twenty-five copies of Detroit Edison's answers to your letter of April 20, 1972, regarding the quarry operations at the site.
These on-site quarrying activities were described in Detroit Edison's Revised Environmental Report (p.4.49-4.51) and the Commission's Draft Environmental Statement (p.46-47).
Detroit Edison will, if necessary, submit additional copies of this information at your request.
~
Very truly yours, LeBoeuf, Lamb, Leiby & MacRae Counsel for The Detroit Edison Company e-
,. - ~
By hd i MM Eugene B. Thomas, Jr.
Partner lh
.:8, l'G;4 0
f.
4
-i The Detroit Edison Company S
.JU
'q
- ;m
~
May 5, 1972 f
I ANSWERS TO-U. S. ATOMIC ENERGY l
COMMISSION'S LETTER OF APRIL 20, 1972
{
ON QUARRY OPERATIONS Enrico Fermi Unit 2 Docket 50-341 l
U. S. Atomic Energy Commission i
e I
. g:'7L
i 7
e' C
.5 e....
L.
~
.~
s
- e.%.a
~.
3puM
//,N.g %".L.b.
K. rQMic ENERGY COMMISS. ION Unnuo sruras
,b #.
-O. ~ '..
WA uferscYO LD.C. ic46
' ' W,J. McCARTHY. JR.
ft.
LR ' 2 0 Du.
o Docket. No. 50941
/
~
. iW2 /M 2i PM. 3 I I Hr. Walter J. IIcCuthy. Jr.
..-[*
' ~
IIsnages for Engineering-Nuc1cir
..ec -
lThe netroit Edison ccmpany
,(,
- ' s, ' ; jf g
'2000 second Avenue
.~. -
1'
.'.5 f
- I
~'
Detroit, MichindA 48226
.y
.. t:
- y. ::,.
h.
,, '.,?
DeBY MT, HoCarthy-3.
)
V,.'
Sif4thero of the Accitic Fncrgy Octaission's regulatory staff met eith y'
lir, Toa Morg,an, Trustee of the Frenchtcun'Twnship
Deard,
and Mr. Frar.k Euron of Newport, Michigna on April 3,1971, and with repre-scatativec of the Detroit Edincn Co=pany on April 7,,1971, at the Ocenission's 3cthcada, miryindd Officco to discuss environrental
.catters asecciated with quarrying.oporations at the T.nrice Fant Atoaic
!.Pover U.lant aite.
~
In ordor that vc nay asuens the eiwironmental inpact of the puping For of vater and of blasting ct the onsito quarry, picane provide the Applicant's Division of P.ad1blonical and Dwironmental Protectico (P2r) with the
Response
folloaing informeica for cur 'conticuing environnental rovicu, and for
' Refer to preparction of the Pinal Environrectal State:Nat for cho Enrico.Fer=1 -
~
Page No.
Atonic Pover Plant:
r
..x
-E 1
A Picasa provide dataIIed inforcation' for uhlls 16 the vicinity of
'the Forni-2 sicc.
,r 1
.I.
Include tsps shv.rinn the Icedtions and total nuxbers of wells
~
in cach 65" cc=paan ac.ct.or uith1u i mie, 5 ulie, van w uuc
.., red iL a.
I 2. / Por a'11 uol'is for uiAch', data are availsble pro 41do I.
'2 2
a.
locations, depths of vellu and vater IcVelo (referenced to a cmmon datu:2 If possible), cod 4-15 L.
daten of raesurev.ents,
. e.
l
- s..
s 16 3.., Dotail inroccetion.oa wells concernina uhtch complainta have becn rcccived including CDy follodUp actions thereon taken or planced.
s 22 4.
Substantiate, for exo:yle by current-rcenr ressurc=ents dL apprbpriate locations, that thn areas of high ground-nator f1w at the north end of the quarry have been scated.
l
-})
S g p}f
(
(g g e b -
s vv-
\\.
s m
=o=~
D
l
.s :
~
.yor
.R..-
=.
_ c -
Applicant,s
Response
Mr. Val ter J. EcCart*sy, Jr.
I. 2 ~
g gg Refer to
."-[--' W.* A p * '
Page No.
f
+-
7
.ij[..* *
.f 7
23 5.
Provide prevloes; current and enticipated future ptmp sizce',
l-fitra rates and durations of flce.r in quarrying ami in devatoring cont.truction sites, inch,=$ing details on d.ischcrge locations.
';,;,6.
/
25 3
Provide inforustion, cuch as ' data frno borings near the quarry.,,
L-
, '.to indicEte the types of groundvater atrata that night bo encountered in future quarrying.
hhat further lotoral and vertical excsvat.lon'of the quarry is planned for the coupletion c,.. ~ of Ferni-2 or'for futuro construct-lon?
--l 26
.h.," m.:: cuss alternativie"to oncite c.uarryina and provido a coct-bchefit -
-. relysic betxeen thise alternativeu cr.d past, curre.t and futuro
..'y.
o
.qsarryidg; include conc]tmfons and' actions taken or plannc4.
. i:.
.e
- h. Provide frifornation on environecotal inpact of blasting ope.rntions-29
~
sad any cafesuarda or alleviatiny, actions taken or planned.
.The in!'ormatirm }irovided should be in bufficient detail and supple:.vinced.
by coch addition:tl data se night be available ami dem'd pertinent and needu;ny for full revicu and ovn19: tion of the environnentel inpact,
'four reply shocid ccrMr-c of thece.41gned originsic and. 297 additional e
ecpirc.: es a ::dgae:otially crsbered nupple:nnt to ynne n:viroreental Report.
Ute PhtM Tmviro:.v.eatal' Stater.ont for the T?nrico Terci !. tonic Po. er Plant PAMCt he c03plGled ~ith04t. thr.nc d;tta, PledCe 1dora US uhen uc ufght 07;pcot to rcecive the requc8ted jdforustion.
-;L l
?,-
.N., !?
- ,..p.
~
slucerely,
... ;, ?..
v..-
y;;:.i..
... \\.-
..,...:.* 3.
'. '.. 'j,
- \\r <-
/
- W. ~
(.w.
2.&
h-
. [
.3
.7 'E ~
, *i,....
..-[.. -),.
=,r,.,'.
~
Roger S. r,oyd,. Assistant Directoi;-
., S Division of Rccctor Licen. sing
~,
~
for Ev.iiling b'ater Reactoro
" h',..
- C'..-
~
..'.h.' :n,-
N'z 4.?.
.e.
x-
.=
~~-
- c.
cei.* Arvin E. Upton, Tsq.
71ePacvF, Ic.rh, T.cIL7 &
- '
- m en<e
..1021 Jefferson Mace, F.W.
Wahington. D.C.
20035.
N :
- ~
r,.
' - y: u -
- . ~
- J.
~
r
,s
~
a
.pr.
-I.
',.,. ~, * *,. *
.. s.
(-
- 4 1-8 3
T,.
.,*j.,
.?.
- r*.
J Answers to AEC Letter of April 20, 1972 A.
Question Please provide detailed information for wells in the vicinity of the Fermi 2 site.
i 1.
Include maps showing the locations and total numbers of wells in each 45' compass sector within 1 mile, 5 mile, and 10 mile radii.
Response
The approximate number of wells now in use and their distribution within.10 miles of the quarry are shown on Figure 1.
All wells are small-capacity type for individual household water systems.
Municipal and industrial water supplies use surface water sourccr. The aquifer that supplies water to wells is described in the PSAR, Section 2.4.3.
t l
4 i
9 4
g.
~
l I
l
\\
746 l
580 l
l l
Il r
rJ
_ _J l
320 140 l
'37i L_
er".f!" r""
O 7
g_
I I
L~~
~7 312 o
5 01 lo Mi S Mi i ui 4 1
13 54I
"~
213
'{
275 59 375
/
ll l l-r ~l e,,
f s
L -. -
s o,
N
+,
's 2
256 s
.A
\\
e 21
.\\
ENRICO FERMI ATOMIC POWER PLANT UNIT 2 TITLE
~~ WATER WELL DISTRIBUTION 0-10 MILES F I G U R E-l -
-e-+
r---
,.y...
y
e A - 2.
Question For all wells for which data are available provide a.
locations, depths of wells and water levels (referenced to a common datum if possible) and b.
dates of measurenents.
Response
Water well ' data have been collected for numerous wells in the Fermi 2 vicinity. Well depths and water level elevations measured on various dates are shown on Table 1.
Since March 1970, the appli-cant has maintained a program of regular monitoring of ground water level in wells in the vicinity of the quarry.
Five observation wells have been installed. Additional water level measurements are made in privately owned water wells near the site. Water level data prior to 1970 are from records of local well drillers, for which the accuracy of measurement is not predicted.
The water level elevations are all referenced to the same datum, mean sea level, which is used for the U. S. Geological Survey Topo-graphic Maps covering the area:
Stony Point Estral Beach Rockwood Flat Rock Monroe e
Erie Carleton e.
A - 2.
Response (cont'd)
The well locations are identifiable by the well number. The well numbering system, which is commonly used by water resource agencies, including the U. S. Geological Survey, designates the well's location within a 40-acre parcel of land. The standard 1 square mile section is subdivided into 40 acre parcels as follows:
D C
B A
E F
G ll M
L K
J N
P Q
R j
As an example, suppose a given well is located as follows:
Township 7
S,outh I
l Range 10 E,as t Section 32., northeast corner.
It would be given a number 7S/10E - 32Al The number 1 following A indicates that this is the first well inventoried in the 40-acre parcel lettered A.
All of the wells within the immediate vicinity of the site are shown on Figure 2.
These wells are identified and located by the last 2 digits of the above described well numbering system and listed s
in Table 1 under the heading of " Map keference Number". Wells shown with an additional number in parentheses are referred to also in our response to Question A-3.
s
' f 9
a.
3 n's
~
o-E t-ae gn a
Wg 2g
- u. E' 9L F
0=
4 U E U
-e o
/N I/
h Y
a
-\\ -,. \\,i
=
-..ng
-l;
. a: -
ew s v 2
6 A-7.
~,..
sh
!)..
s
. !E 3 5,}c I -r;',
M
_ f.
y f
/\\
\\\\
h
~ yJ
~
O
.<
- gl, \\ l e Y lY
- h. tN >l
,,16 r
N
^;
5 f 's qP f
',a so.<(
g e_.'/ !
/
E l~-
g
_ ij \\ N N.
- ~r t.< ~
av
, 4.w g
,e
\\
el
\\y
=
.m a
~, >
.d g \\., K g\\
//
- q. hJW
~
1$h s
g
- 4 f_4
%.s ti.'
i N ^. p-
\\
N
.x liv 00
\\ l ~
'[
j 8(.f 4 )lRl{r 6'M$Q'N h'gl,k4)4$'
s _ y-
---)*
~m n--
i, Q
- @ J.i x % '6 V
g ( \\}\\
I f,,r" /_ Q % / 'N i?
\\
E f - - -- IV,f n
f
<< /
1
'+@'@ k~ l 8
-. Xy'4,4:- y ; A L. N2geJ'M.Mih,'
E g
9 C
$ T A
s N pr7M22,6.Jx,y
.~
- r
- 1. _. _ j
_c.
.e
.o
/n N
a-
\\;Q. ' N
-.j
>,_ e
( -..3
'Na t
~a 1---.3
_.N
\\
s
.a- -...
k
,T a,
Q.
ii s
x
,, /
.s
\\ e,.j c
g.
s k.,, [J.,s N
,g
%~7.\\.,y.,[/^ V) S.y j
e s
t
_n.=.T.:
s
+
)
g., /
n r.
4
- p s
y
/
'.I Y,
..L.
Miy e,,,,.
e
- s f* I F
(.T Q
b -~.N ~.;
F
\\
f 5 "N e
?s j
tj
{
l.t N:
J t F.a.
- p..
5
/
[
3 31
~-
sE;p;5
- j -..',
\\
I
,,3... P. j r.w.
K{b as,y,./.d s.
.x, s.
g a
g x Y
'l.
d'V4%el, y
- 4., _..s
_.y.
x.
-e s
9%
i X-u' /. n
~
9 ML)
- !w,'
/x
"'/
- m. $/ a Q
+ t v
s
\\;
6,
f g -
., m L s.
w e'
fl%.
VK.
[_ $ .~.,j'$'0
~Q
- v.,/
eg
/
l
~+ % ;t'g Q
_,9 9 $
' $,_.Q*. < j
.\\ Q '
8
/:..
ffg l
ll.
., y y j
(,
)
!= -
- y Bg'qpyfj,T'f-h 5 ' v,
,/
cm, d ;,
s A p. 1,r u..,f/
f5[ y + h
,p f. a i
. _s >, -.-
4 y._.
l
,,J
}/
^
i.
1 M=, =
4 d <.!. D,'sti,'
j
,lL / ' Aj%
--.n..
,, J, 3
x
\\. 5m,- Q 7
,,7
., / _.a,.
.. a..
u
- s
,7
(
. n
~ -
~. r l:,p '.
u u
p s
~
~
w
.ni i
a
%j s., ' ' '....
.l q,
l
'e
[),
.[x[,/.
i
.N, g
K,, 2/,p,yf f,--s]y,M[
3 m/
~~"
8 f',,
f f ih'g,#
y k ;/uM.f,p..),
m
.,L.s
..- i :.
a.
n.
r- - -- - ~
- s l 4l g Ns-v t ' m. k.i? N\\
~. 4'
\\
%' eik.' k%
K!*r>
l L
M'.5p g W gs.' %
p s
3 3
i
~.
-~
s
Table 1.
v Ground Water Levels near Enrico Fermi Atomic Power Plant Site Pap Reference Depth Elevation of Number Well no.
(ft.)
Water Level (ft.)
Date Comments R1 SS/8E-36R1 77 594.
9/9/64 597.6 4/28/72 01 SS/9E-201 33 590.
5'/20/65 588.11 4/28/72 581.22 2/3/72 dl 6S/9E-llJ1 577.02 12/29/7C K1 6S/9E-13K1 577.25 12/30/7C 576.68 10/22/71 Cl 6S/9E-23Cl 35 580.74 2/3/72 583.
11/13/54 K1 6S/9E-23K1 95 572.
11/24/69 570.64 9/8/70 m
Q1 6S/9E-23Q1 76 572.
11/6/69 3 575.4 9/8/70 574.65 10/27/7(
576.39 12/29/70 575.8 2/26/71 577.'0 3/26/71 576.25
,4/30/71 Off Site Monitoring 576.3 5/28/71 Well 574.8 7/2/71 573.0 7/30/71 572.8 8/24/71 573.52 10/22/71 572.3 10/3'0/71 579.13 4/28/72
)
- i
Ta'le 1.
b Ground Water Levels near Enrico Fermi Atomic Power Plant Site Map Reference Depth Elevation of Number Well no.
(ft.)
Water Level (ft.)
Date Comments 576.87 12/29/70 C1 6S/9E-24C1 Q1 6S/9E-24Q1 50 575.
9/19/69 7
574.76 9/8/70 573.84 10/27/70 575.97 12/29/70 573.4 11/5/71 573.4 12/3/71 574.4 1/7/72 Off Site y
Monitoring 575.4 2/4/72 Well 576.1 3/3/72 579.8 4/7/72 580.5 4/21/72 580.73 4/29/72 s
~
Q2 6S/9E-24Q2 70-571.
11/6/53 Q3 6S/9E-24Q3 65 577.
6/13/53 R1 6S/9E-24R1 127.5 577.
3/27/51 L1 6S/9E-25L1 32 568.
8/2/56 L2 6S/9E-25L2 45 572.
7/9/52 L3 6S/9E-25L3 41.5 570.
4/28/50 565.
7/3/50 L4 6S/9E-25L4 50.5 L5 6S/9E-25LS 28.5 572.
6/17/53 575.04 2/3/72 6S/9E-25M1 49.5 574.
4/17/53
-25M1A 37 570.
10/1.8/55 4/12/,48
-25M2 39 575.
-35H1 34.5 569.
1/20/49
Table 1.
Ground Water Levels near Enrico Fermi Atomic Power Plant Site Map Reference Depth Elevation of Number Well no.
(ft.)
Water Level (ft.)
Date Comnents J1 6S/10E 6J1 52 575.
8/31/63 Q1
-6Q1 55 570.
10/17/53 Q2
-6Q2 56.5
'575.
7/3/47 A1
-7Al 55 576.
9/18/53
- ~ A2
-7A2 116 570.
12/12/69
'570.7 2/3/72 H1
-7H1 52 567.
6/12/56 K1
-7K1 67 576.
6/6/68 L1
-7L1 35 572.
7/1/r0 J1 6S/10E-8J1 49 575.
12/21/55
~
K1
-8K1 36 571.
11/26/57 R1 6S/10E-8R1 51 571.
1/30/66 570.63 9/8/70 570.03 2/3/72 B1 6S/10E-16B1 52 572.
C1 6S/10E-16C1 49 570.
6/25/54 F1
-17F1 59 562.
2/17/64 568.91 9/8/70 567.59 10/27/70 M2 6S/10E-17M2 571.75 2/3/72 P1 6S/10E-18P1 60 572.1 9/8/70 571.84 12/30/70 576.3 2/26/71' Off Site p
Observation 576.5 3/26/71 well 575.2 5/28/71 s
Ta'le 1.
b Ground Water Levels near Enrico Fermi Atomic Power Plant Site Map Reference Depth Elevation of Number Well no.
(ft.)
Water Level (ft.)
Date Comments 574.0 7/2/71 575.0 7/39/71 573.25 8/27/71 573.30 9/24/71 Off Site 573.30 10/30/71 Observation 571.2 12/3/71 573.5 1/7/72 573.6 2/4/72 1
574.0 3/3/72 577.3 4/7/72 578.3 4/21/72 576.67 4/29/72
~
6S/10E-18Rl.
80 573.49 9/8/70 569.24 10/27/70 569.56 12/29/70 B1 6S/10E-1981 65 577.00 12/22/64 B2 6S/10E-1982 65 583.
2/17/69
'S 576.86 9/8/70 Off Site Observation 571.86 10/27/70 L
well 568.94 12/29/70 583.0 2/17/69 576.42 9/8/70 571.42 10/27/70 568.3 12/29/70
,J 7
l Ta'le 1.
b Ground Water Levels near Enrico Fermi Atomic Power Plant Site Map Reference Depth Elevation of Number Well no.
(ft.)
Water Level (ft.)
Date Comments B2 6S/10E-1982 65 571.33 8/6/71 7
570.26 8/27/71 570.21 9/24/71 570.14 10/30/71 570.94 12/10/71 570.94 1/7/72 Off Site Observation 571.84 2/4/72 Well 572.34 3/3/72 575.02 4/7/72 578.19 4/21/72 576.69 4/29/72 j
B3 6S/10E-1983 45 581.
10/30/53 G1 6S/10E-19G1 591.
3/2/56 570.7 5/12/71 )
H1 6S/10E-19H1 -
U 570.4 6/1/71 570.75 7/2/71 570.32 8/2/71 570.21 8/27/71 Off Site 570.57 10/1/71 Observation L
Well 569.8 11/5/71 569.5 12/3/71 570.25 12/23/71 s
572.0 1/31/72 571.3 2/2fi/72 573.0 3/14/72 j
Table 1.
Ground Water Levels near Enrico Fermi Atomic Power Plant Site Map Reference Depth Elevation of Number Well no.
(ft.)
Water Level (ft.)
Date Comments 574.4 4/7/72 H1 6S/10E 19H1 Off Site 578.0 4/21/72 r
Observation Well 576.67 4/29/72 M1 6S/10E-19M1 56 580.
5/17/68 570.03 9/8/70 572.36 2/3/72 M2 6S/10E-19M2 40.5 580.0 12/8/45 M3
'6S/10E-19M3 31 582.
4/12/49 P1 6S/10E-19P1 58 569.
10/i,'64 R1 6S/10E-19R1 45 566.72 9/8/70 573.94 4/28/72 El 6S/10E-20E1 62 583.
10/27/70 585.18 4/28/72
~
E2 65/10E-20E2 -
580.51 12/29/70 N1 6S/10E-20N1 53.5 565.
5/26/50 P1 6S/10E-20P1 84 56d.0 3/18/70 )
568.0 4/1/70 567.3 5/6/70 On Site 559.8 8/10/70 Observatioi i
Well 562.2 8/19/70 s
(Abandoned:
563.58 3/1/71 565.38 4/1/71 562.58 5/3/71 l
,554.48 6/1/71 548.38 7/1/71 544.78 7/23/71 J
.g.
Ta'le 1.
b Ground Water Levels near Enrico Fermi Atomic Power Plant Site tbp
. Reference Depth Elevation of Number Well no.
(ft.)
Water Level (ft.)
Date Comments D
568.0 3/18/70 P2 6S/10E-20P2 567.2 5/6/70 564.3 6/25/70 563.9 7/30/70 563.8 8/18/70 566.92 3/1/71 567.62 4/1/71 565.92 5/3/71 564.52 6/1/71 559.12 7/1/71 556.77 8/2/71 On Site Observati 552.02 8/27/71
?
Well 551.81 10/1/71 550.94 11/5/71 549.61 12/3/71 549.14 12/23.71 546.94 1/31/72 547.14' 2/25/72 540.34 3/14/72 537.99 4/7/72 540.77 -
4/21/72 541.86 4/29/72
..)
El 6S/10E-21El 42 557.91 7/1/70 D
On Site 559.59 8/3/70 Observation I
Well 555.02 9/1/70 a.
Ta'le 1.
b Ground Water Levels near Enrico Fermi Atomic Power Plant Site Map Referencei Depth Elevation of Number Well no.
(ft.)
Water Level (ft.)
Date Comments El 6S/10E-21El 42 555.74 10/1/70 D
556.74 11/2/70
'556.60 12/2/70 556.94 1/4/71 556.1 2/1/71 557.14 3/1/71 556.94 4/1/71 555.49 5/3/71 556.54 6/1/71 555.94 7/1/71 555.99 8/2/71 On Site Observation r
556.53
-8/28/71 Well 557.12 10/1/71 556.24 11/5/71 556.24
,12/3/71 556.64 12/23/71 558.14 1/31/72 559.44 2/25/72 559.64 3/14/72 562.16 4/7/72 562.99 4/21/72 561.91 4/29/72 Cl 6S/10E-28C1 58 569.
12/12/50 D1 6S/10E-2801 39 568.19 10/22/71 02 6S/10E-2802 51.5 571.
3/12/51
_~
Ta'le 1.
b
~
Ground Water Levels near Enrico Fermi Atomic Power Plant Site Map Reference Depth Elevation of Number Well no.
(ft.)
Water Level (ft.)
Date Comments 567.97 9/8/70 N
El 6S/10E-28E1 567.88 10/27/70 569.84 12/29/70 571.5 2/26/71 572.1
. 3/26/71 571.75 4/30/71 570.4 5/28/71 568.5 7/2/71 566.0 7/30/71 p
Off Site Observation 566.17 8/27/71 Well 565.82 9/24/71 565.9 10/30/71 566.17 12/3/71
~
567.5 1/7/72 569.3 2/4/72 570.84 3/3/72 572.1 4/7/72 572.8 4/21/72 572.42 4/29/72 y
E2 65/10E-28E1 74.5 574.5 6/30/51 E3
-28E3 43 577.
5/1/56 E4
-28E4 56.5 575.
4/19/52 E5
-28E5 51 572.
7/28/65 E6
-28E6 568.6 10/22/71 i -
Table 1.
_ Ground Water Levels near Enrico Fermi Atomic Power Plant Site
' Map Reference.
Depth Elevation of Number Well no.
(ft.)
Water Level (ft.)
Date Comments _
569.4 10/22/71 E7 6S/10E-28E7 576.4 5/1/72 F1 6S/10E-28F1 68 573.
11/20/67 1
571.61 10/22/71 M1 6S/10E-28M1 68 572.
5/17/49 A1 6S/10E-29A1 566.52 10/22/71 570.65 4/28/72 B1 6S/10E-29B1 567.45 7/1/70 567.42 8/3/70 566.22 9/1/70 566.37 10/1/70 566.87 11/2/70 567.07 12/2/70 567.17 1/4/71 566.6 2/1/71 On Site 568.57 3/1/71 P
Observation Uc11 569.57 4/1/71 568.43 5/3/71 567.87 6/1/71 565.97 7/1/71 564.82 8/2/71 564.15 8/27/71 i
564.15 10/1/71 i
563.57 11/5/71 563.57 12/3/71 563.77 12/23/71 M
e
.4 e
Table 1.
_ Ground Water Levels near Enrico Fermi Atomic Power Plant Site Map Reference Depth Elevation o."
Number Well no.
(ft.)
Water Level (ft.)
Date Comments 564.57 1/31/72 B1 6S/10E-29B1
~
563.87 2/25/72
'564.37 3/14/72 On Site 565.27 4/7/72 Observation
,Well 566.24 4/21/72 566.40 4/29/72 y
D1 6S/10E-29D1 28.5 570.
10/2/54 563.25 10/22/71 1
567.45 4/28/72 i
E1
-29El 38.5 572.
7/16/53 E2
-29E2 31 567.
8/31/55 E3
-29E3 60.5 572.
' 7/13/62 E4 6S/10E-29E4 40 572.2 1970 562.4 10/22/71 11 1 6S/10E-29H1 39 571.
H2
- 2 9112 38.5 569.
10/15/47 j
J1 6S/10E-29J1 37 570.
5/27/60 J2
-29J2
' 35 567.
6/4/56 570.55 2/3/72 9
572.
1/8/53 J3 6S/10E-29J3 35 J4 6S/10E-29J4 74 566.
11/18/52 f
JS
-29J5 46 568.
7/25/64 J6
-29J6 40 572.
6/2/52 J7
-29J7 45 571.
6/13/53 i
J8
-29J8 28 572.
4/12/49 I
14 1
Table 1.
Ground Water Levels near Enrico Fermi Atomic Power Plant Site tbp Reference Depth Elevation of Number Well no.
(ft.)
Water Level (ft.)
Date Comments J9 6S/10E-29J9 38 570.
5/13/50 J10
a/10E-29J10 31 570.
7/29/53 J11
-29J11 36 572.
6/14/57 K1 6S/10E-29K1 30 575.
3/19/52 K2 6S/10E-29K2 47 573.
6/7/63 Q1 6S/10E-29Q1 40 566.
R1 6S/10E-29R1 30 573.
4/18/57 R2 6S/10E-29R2 50 564.
11/16/54 B1 6S/10E-30B1 60 569.
10/7/68 C1 6S/10E-30C1 40 569.
11/26/63 568.93 2/3/72 El 6S/10E-30E1 29 571.
. 8/8/45 J11 6S/10E-30H1 42.5 570.
9/18/65 H2
-30H2 49 572.
10/28/57 A1 6S/10E-32A1 49 570.
6/7/56 l
A2
-32A2 41.5
- 575, 6/11/51 I
e 5
B B
e t
6 e
A - 3.
Question Detail information on wells concerning which complaints have been received including any follow-up actions thereon taken or planned.
Response
All complaints received by Detroit Edison regarding problems associated with domestic well performance have been promptly investi-gated and action was taken where problems truly existed.
The action taken has been classified as follows:
a) New Well and/or Submersible Pump Installed b)
Denied c) Acting and pending d) No further problems.
An explanation of each classification follows on Table 2, along with a reference map (Figure 3) showing tne residence location in proximity to the quarry.
4 e
0,
J 3
Table 2.
(c) New Well and/cr Submersible Pump Installation I
Upon receipt of each of these complaints, if the customer reported he was out of water, tank or bottled water '
was supplied immediately and prior to inspection.
If there was any indication that at times the customers were -
j unable to obtain an adequate water supply, wells and/or pumps were installed.at no cost to the customer.
Map Tank or Bottle Date Date of Follow-Date Date of Reference Water Supplied of Up Inspection and of First i
Number Name and Address Temporarily Installation Customer Comments Complaint Contact 1
Ralph Fix X
5/4/71 4-26 advises 8/11/70 8/20/70 6394 Leroux well and pump okay, no problems.
3
~ Justin Sisung X
4/12/72 8/26/70 8/27/70 6398 North Dixie l
4 Romley Russeau X
5/3/71 4-27 reports 8/24/70 8/26/70 l
6130 Leroux all okay, pump works beautifully.
l 8
Louis Berns 6/2/71
. Unable to contact, 8/26/70 8/26/70 1
5909 Leroux however, have re-ceived no reports of difficulty.
14 Charles Barten X
6/2/71 4-2G reporte 8/20/70 8/26/70 5681 Toll :: cad all okay, no problems.
16 Lillie Sisung X
11/18/73 4-26 stated 8/20/70 8/20/70 6001 Toll Road she has good quality water, no problems, all okay.
21 Lena Masson X
5/1/71 4-26 per 8/21/70 8/27/70 5795 North Dixie Mrs. Sisung, no problem obtaining adequate water supply.
-i
1 Tcblo 2.
(a) New Well and/rr Submersible Pump Installr, tion (cont'd) t i
Map Tank or Bottle Date Date of Follow-Date Date of Reference Water Supplied of Up Inspection and of First
,j Number Name and Address Temporarily Installation Customer Comments Complaint Contact 38 Douglas McComas Installation 5-3 to this date 8/30/71 9/17/71 4732 Sycamore authorized well-driller unable on 3/14/72 to work in area due to soft ground.
39 Barbara Grabitz Installation 5-3 to this date 9/8/71 9/18/
1952 Elm authorized on well-driller unable to 3/14/72.
work in area due to soft ground.
43 Carl Jondro Installation 5-3 to this date 2/29/72 2/29/72 51 Pt. Aux Peaux authorized on well-driller unable to 3/14/72.
work in area due to soft ground.
E New Submersible Pump Installation 9
James Remick X
3/9/71 4-26 Mr. Rocca 8/26/70 8/26/70 5832 Leroux reports everything (New owner -
okay, plenty of water.
Frank Rocca) 15 James Barczewski X
12/7/70 4-26 advises 8/26/70 8/26/70 5701 Toll Road plenty of water.
Pump blew a fuse on 4-24, all okay since then.
New Well Installation 33 Floyd teach 9/25/71 4-26 daughter, Denise 5/11/71 5/19/71 5843 Leroux reports well okay, every-thing works well.
Cash Settlement Set @teofTement 1/4/71 1/6/71 D
27 Larry Collins 5151 Pt. Aux Peaux 1/6/71
e Table 2.
(b)
Denied Denial w'as based upon investigation that revealed faulty pumping system, no change in water level or location too distant from quarry.
Map Date Date of Reference of First Date Number Name and Address Complaint Complaint Contact Denied 24 Morris Rye Low well 10/12/71 10/22/71 1/27/72 6334 Williams Rd.
31 J. D. McPhail Low well 4/16/71 4/27/71 5/19/71 6205 War Road 32 Clayton Nadeau Low well 5/7/71 5/19/71 10/4/71 6887 North Dixie 34 Vincent Taylor' Low well 7/29/71 8/5/71 10/4/71 5872 North Dixie 37 T. Victor Menard Low well 10/1/71 10/1/71 10/15/71 9647 Swan Creek Ash Township (Not shown on map)
Table 2.
(c)
Active and Pending Investigation of. these complaints is continuing.
Map Date Date of Reference of First Number Name and Address Complaint Complaint Contact 40 Violet Domrowski Low well 9/27/71 10/1/71 4944 Long 41 Arthur Hemry Low well 10/19/71 10/22/71 6139 Goddard 42 Walter Maus Low well 10/19/71 10/22/71 6133 Goddard 44 Everette Morgan foul Odor 1/3/72 2/7/72 4345 Avenue "B" s
=
Y w
Table 2.
(d)
No Further Problems The complaints received that are now classified under this heading were those in which no problem was found to be present upon investigating the com-plaint. The Detroit Edison Company investigator's identification was left with each customer to contsct us if they experienced further difficulty.
No calls have been received from any of the following beyond the original complaint.
Map Tank or Bottle Date Date 'f o
Reference Water Supplied of First Number Name and Address Temporarily Complaint Complaint Contact 2.
Gerald Langton Low well 8/26/70 8/26/70 5511 Leroux 5
William Dempsey Low well 8/26/70 8/26/70 6110 Leroux 6
Richard Russeau Low well 8/26/70 8/26/70 6080 Leroux 7
Luther Prewitt Low well 8/20/70 8/26/70 6034 Leroux i
10 Leo Masserant Low well 8/20/70 8/27/70 l
6175 North Dixie 11 Woodrow Smith Low well 8/20/70 8/27/70
(
5993 North Dixie 12 George Chopson Low well 8/20/70 8/27/70 5940 North Dixie 13 John Hein
' Low well 8/24/70 8/27/70 5914 North Dixie 17 Roman Bodenmiller Low well 8/20/70 8/27/70 4771 Pt. Aux Peaux 18 Gordon Handioser X
Low well 8/24/70 8/27/70 6333' Sterling Drive Foul Odor, Discolored 19 William Ray Low well 8/20/70 10/27/70 6057 Pt. Au Peaux Well is abandoned 20 Valarian Langton Low well 8/26/70 8/26/70 6445 Leroux 22 Arthur Humphrey X
Low well 8/31/70 8/3.
6039 North Dixie 23 Hubert McLaughlin Low well 10/23/70 10/23/70 5839 Williams Road
Table 2.
(d)
No Further Problems (cer: 6}
Map Tank or Bottle Date Date of Reference Water Supplied of First Number Name and Address Temporarily Complaint Complaint Contact 25 Roy Courts X
Low well 11/5/70 11/10/70 5845 North Dixie 26 Ney Kirkland Low well 8/26/70 8/26/70 6511 Leroux 28 Mrs. Prather Muddy water 1/4/71 1/14/71 4891 Greenville Berlin Twp.
(Notshownonmap) 29 Leander Labo Low well 4/2/71 4/15/71 4
6994 North Dixie Well is abandoned 30 H. J. Johnson Dirty water 4/5/71 4/15/71 3880 Lakeshore Dr.
Foul odor 35 Joseph Knapp Cloudy water 6/18/71 6/22/71 4018 Lakeshore Dr.
36 Andrew Meyer Water seeping 9/14/71 10/11/'l 5701 Pt. Aux Peaux out of ground around well casing. Plastic water line was leaking, not damaged.
l 0 -_m.___
m.
,/,f
\\
E=5 I
~o ed
@~
p/
a t=-
s
,\\*\\
') -
00t
'N / d x '
..... 4 -.....d f "fy"%% <
k*g
..._...i..
I 8
a ru 9 :;
[
3, g
8
E r1.5..%,7, 1.> ~~ \\1 f'/
1
=v5 A
h v
i e
-on =~-
/,
5 p, '-
N
/
n; n
2 ca s
E:
.f \\s 5:
ec e,s/ :
i e, =-c,,-..._=m.i s* r,:
,. +
\\-
.,. =, -
.s..,....
N g
s
't \\% (S
\\ Ch Eg=
/
=ss i c;p;g s
i' I a.
4.9
's
- W: E
- ~
8 1
g Q.
g, %c.fm@ge'i. -.
4 E tREas D
3
.: O I'
0C$t
+@-
O' s m
- e og.
m,,I, I rergggg e
u
\\
's 09003 y,/
1; 3
13 e
u a b,r e
l; s
i '*
(28
' CM 3
A
.=
e-.
f
\\
, c.
,x
~
=
.z q
e
\\
3:
! 48 g
v m
C4
'O-
..s;:-.s'
..o x
ess'.
5
,,g o
g-4e-l aa
- $5,-
'\\
a i s o.. = _ s f
f\\
1 /<
h-s
^,4 &
Qs.
'\\v u
e N)s
\\
.(.~ //Ji -
'+-
e m'
m
\\
.~ Q:
O
\\
g
.. k' /
a' f' *5
..ph. p";.
l
.. /.
t e-l s by i ;~. '
N c4 s.
- u. i
.-/ :) %/\\
~,
s;< p,-
u
's
~
s s
o 6),
4 y
'N
.g +
- c. \\
s..
eq.
o
!y 2. i,
.DEt 5
e e
N\\
~ [ "N d
\\
(
N c4 g
e b
e
'N N
'N
/
/
N
.T 4-
.W
.s s
u l
'Ue
} g\\... j'.g % s e.i; '-
$E
.'N<
N l
- s. /. %,.,., %,,
- .y.,
~.g...gN _..
+-
+
1
,e p -
>p, %e
~
Q '*,"f
.f
'%.~,, ' %
~
\\
,*o,.
h, :
f' ug y
~. \\x,.a
.. ' ~..%,* *. s..,l </
's. / Ms.'N,
,q,
?.
N:
', N' s
, s (d,* :4 k
s'%
N /
g*
g, i f,.j, %. g. N E, ~.4 ""'%j:f/' g,
',4
- j. Q.,
a'
<y #4:
. 12 -
- $$$.'s;
'/
/Rh w.
- j. ~7 I
~} ?. ----
'~
A - 4.
Questi6n Substantiate, for example by current-meter measurements at appropriate locations, that the areas of high ground water flow at the north end of the quarry have been sealed.
Response
Before the quarry was established, there was natural flow of ground water toward the southeast. This natural flow through joints and solution enlarged openings was governed by the hydraulic gradient.
The ground water discharged naturally by upward mot ement through over-lying till, in the vicinity of Lake Erie shoreline, near the quarry site.
(SeePSAR2.4.3.2)
After the quarry was established in 1969, the joints and solution openings in Bass Islands dolomite were uncovered, causing ground water to flow into the quarry by welling upward through the floor. The quarry operation had progressed to a depth of 20 feet, approximately elevation 560.
In 1971, the quarrying was relocated in an adjacent area to the south, where little additional flow occurred except for a single solu-t tion opening, and water from the abandoned north end flowed into the 4
l adjacent and more deeply excavated south section of the quarry.
In
{
August 1970, all quarrying and associated dewatering were terminated, and the water level inside the quarry was allowed to rise.
It was 3
reasoned that if the quarry water level were to rise to the approximate i
elevation of the piezometric level which existed prior to dewatering, the ground water level regimen would return to the natural state.
In 5
this condition there would be ground water flow through the joints and
'f solution enlarged openings of the same magnitude that existed prior to quarry development.
In October 1971, the water level in the abandoned j
quarry had reached an elevation of 569 feet. At the same time, the water level in well 6S/10E-19H1 was at elevation 570. This well is located 2200 feet west (upgradient) of the quarry.
Very little flow is implied i
by the very small gradient that existed then.
Since that time, the water level has risen to elevction 577, within 5 feet of the natural ground e
water level shown in PSAR Figure 2.4.2 and further confirmed by additional driller record data.
. 4
A - 5.
Question Provide previous, current and anticipated future pump sizes, flow rates and durations of flow in quarrying and in dewatering construction sites, including details on discharge locations.
Response
There have been two excavations at Fermi 2 which have been dewatered:
the quarry and the reactor pit.
Discharge from these excavations has been, is, and is expected to continue to be into the lagoon which discharges into Swan Creek and which in turn discharges into Lake Erie (PSAR Section 2.4.2).
Pump sizes and flow rates and durations follow:
Quarry Average discharge Dates to Lagoon (gpm)
Pump Size 10/69 - 8/70 770 3 in and 6 in 8/70 - 11/70 0
11/70 - 4/71 420 3 in and 4 in 4/71 - 10/71 0
10/71 - 11/71 110 10 in 11/71 - present 30 10 in Reactor Pit 6/70 - 3/71 205 6 in 3/71 - 4/71 205 two 4 in 4/71 - 7/71 205 three 4 in 7/71 - present 145 three 4 in 4
e i
i
l A-5.
Response (cont'd)
After the abandoned quarry was allowed to fill, quarry operations were relocated immediately to the south. The abandoned quarry functioned as a ground water recharge pond. All water accumulating in the new quarry was pumped into the abandoned quarry, at 2000-25000 gallons per minute.
Much of this recycled water, or water entering the new quarry directly from the recharge pond.
To avoid flooding the active quarry area, it was decided to maintain the water level in the recharge pond at less than elevation 569.
Under this condition 'it was found necessary to dispose surplus water at a rate of. about 30 gg..
This water is discharged into S',Jth Lagoon.
The amount discharged may increase as ground water levels in the area continue to rise.
The pumping system used is illustrated by the following diagram.
South Lagoon O
GO gpm ground Percolation Recharge 10 inch pipeline Quarry
/
water.
Pond (active) inflow
(
(abandoned 2000 -
quarry) 2500 gpm Direct seepage 1
4 o
N
A$$
SthfFACE ELEMeTION 5152 X %
8%
O SYMBOLS OCSCRIPTIONS 0%
%g 1AN LLAYLY QWlR6bROL N GRADIMs thIy 1AN AR4GLLALLI.L$
l E c!! Ell
'''8 25 %
lb ebb D :LO !
CNA$ $N il'
/Q 0
t SH Att SE AMS A%D A'ad10R I T(' AND PYRITT INCL t;$ 10's$
7.
9g *4
.L.
i"
?
30 99.y["
TAN HARD 00LITIC DOLOMiff ("ARKfR 81 0) 40
+
SAME AS 7'6" TO 36' k
50 ****
' 60 1
k 00%";
$AMr AS 7'6" 10 16'
$CFT DARK GR AY $ HALE (MAnkIR BfD)
_r A
70 i
?
rT 90%
7 80 i
2
'l I
90
?
/gg (h
ED HA D
I
($A A
nt )
W4 23*4
$m Y'
//O BOAING COMPLE f f D AT III.0' n'a 9/21/69
/20 ENRICO FERMI ATOMIC POWER PLANT-UNIT 2 TITLE COG OF BORING AT QUARRY SITE FIGURE-4
A - 6.
Question Provide information, such as data from borings near the quarry, to indicate the types of ground water strata that might be encountered in future quarrying. What further lateral and vertical excavations of the quarry is planned for the completion of Fermi 2 or for future construction.
Response
The local aquifer is described in PSAR Section 2.4.3.
A log of a boring at the site of the quarry (Figure 4) shows that fractured dolomite extends as a continuous hydrologic unit to about 100 feet depth.
The rock cuts exposed in the quarry have not encountered any(deviatic, from the rock conditions indicated on the log. Borings data see PSAR) indi-cate a general uniformity of rock conditions throughout the site area.
No further vertical excavation of the quarry is planned.
Lateral excavations of about 50 feet west and 150 feet east are planned during the summer of 1972.
Detroit Edison has not made a decision on a quarry location for future plant expansion beyond the construction of Unit 2.
4 4
i
-i I
I i
s I
i l i
-m e.- e.e
---..-.w-
.e.-.
g.
4 B.
Question Discuss alternatives to onsite quarrying and provide a cost-benefit analysis between these alternatives and past, current and future quarrying.
Include conclusions and actions taken or planned.
Response
Prior to filling the site, in preparation for construction of Unit 2, Detroit Edison evaluated various methods of obtaining a suit-able fill material.
Methods and materials considered were:
(a) Dredge sandy material from Lake Erie and deposit onsite for fill.
(b) Use offsite materials, sand or gravel from a borrow pit and deposit onsite for fill.
(c) Quarry rock from onsite quarry to fill site.
Detroit Edison evaluated these materials, que.ntities, and tech-niques of site fill and determined that the environmental impact to the general area would be less if an onsite quarry were used to obtain j
site fill materials. The evaluation considered the following factors.
i i
Dredge Materials from Lake Erie t
Sand materials available in Lake Erie adjacent to the site were I
not sufficient in quantity and were covered by an overburden of approxi-mately 12 feet of clay and muck. This overburden material would have to be disposed of onsite creating a storage problem from the standpoint of land use.
Also the dredging operators required that a safe harbor facility be built on the site or in the immediate vicinity since the i
harbor at Monroe is 8 miles away, requiring too much time to get to in the event of a sudden storm on Lake Erie.
It was estimated that this dredging operation would require two i
years to complete and the environmental impact on Lake Erie and local beaches was uncertain. The cost of materials excluding costs for site deposits, pollution controls of dredging, and safe harbor was estimated to be $1.81 per cubic yard.
Since suitable materials were not available in sufficient quantities, this method of site fill was not given further consideration.
ll
?
I j 2 i
B.
Response (cont'd)
Offsite Borrow Pit for Sand A search for an offsite borrow pit.for sand did not prove successful.
A borrow pit closest to the site did not have suf-ficient quantities of sand to meet out needs.
Further, the borrow pit was located on secondary roads and over 20 miles from the site.
The cost of this material delivered to the site was quoted at $3.50 per yard not including the cost of rebuilding roads and bridges to provide an adequate route for year round hauling.
The environmental impact of this type of operation was, I
in our opinion, the most severe of all methods of site fill con-l sidered.
It required extremely heavy truck traffic for a consider-able period of time.
For example:
4 years hauling = 1 truck passing - every 2-1/2 minutes a given point 2 ye'ars hauling = 1 truck passing - every 1-1/4 minutes a given point Since adequate quantities were not available and because of the potential environmental impact of heavy truck traffic on local secondary roads, this alternate was abandoned.
Onsite Quarry Detroit Edison had an onsite quarry which was opened in 1958 to obtain materials for the. Unit 1 construction.
From 1962-1969, it was abandoned and allowed to fill with water.
In early 1969, it was activated to obtain materials for a new access road into the site.
In October 1969, a decision was made to continue the onsite quarry to obtain site fill materials required for the construction of Unit 2.
This decision was based on availability of other materials from offsite sources as previously discussed, and the minimal impact to the environs of the surrounding area.
It.was recognized at that time that the water table would be affected locally on a short term basis and that the required blasting would have to be controlled to minimize the affect on onsite and offsite structures.
Both potential problem areas were controlled by very rigid requirements from the l
beginning and these controls have been successful in minimizing the l
affect to the environment. The cost of the rock has averaged about
$2.70 per yard.
The establishment of an onsite quarry lake for aesthetic and recreational purposes was considered to be a benefit to the environ-ment.
s 1
l
~
B.
Response (cont'd)
Current and Future Cost-Benefit Analysis The site fill for Unit 2 is approximately 90% complete as of May 1, 1972.. The alternate to continued use of the onsite quarry is to obtain stone from a quarry located in the City of Monroe.
This quarry is presently the source of aggregate for Unit 2 concrete.
The comparative costs for fill materials obtained from this source are as follows:
Quantity of rock Cost per ton to be obtained Total Cost Onsite Quarry
$2.70 500,000 ton
$1,350,000 Monroe Quarry
$3.20
- 500,000 ton
$1,600,000
- estimated Environmental Impact Onsite Quarry Localized and temporary depression of water table Minimal noise from blasting (residents adjacent tosite)
Monroe Quarry Added truck traffic (about10,000 truckloads)
Minimal noise from blasting (residents of the City of Monroe)
Conclusions Detroit Edison concludes that the environmental impact of the quarry is not severe and any short term localized adverse effect has been and will be properly and promptly solved. The transfer of this quarry operation to the City of Monroe adds another environmental impact to the area with the added truck traffic over local roads.
Detroit Edison anticipates continuing the onsite quarry operation to conclusion using the rigid controls and monitoring presently imposed on the operation.
C.
Question Provide information on environmental impact of blasting operations and any safeguards or alleviating actions taken or planned.
Response
Detroit Edison has made extensive geological studies of the Fermi 2 site and adjacent area to determine seismic response design criteria.
Also, prior to onsite blasting for the Unit 2 excavation and quarry work, extensive studies were made to make certain no damage would be done to Unit 1 and any onsite or offsite structure.
A test blasting program was initiated by Dames & Moore, under contract to Detroit Edison, using a three component blast seismo-graph and two three component engineering seismographs.
These instruments measured ground motion longitudinally, transverse and vertically. Types of explosives, amounts and methods used and measured distances were all recorded.
These studies were used to set criteria for future blasting at the site and to set limits on charges that would be conservative to make certain no onsite or offsite structural damage would occur.
All blasts are monitored by an automatic vibration induced instrument activated by motion in the vertical component.
This instrument is located in Unit 1 at a point in the structure of greatest motion sensitivity. This instrument has not indicated any excessive ground motion due to blasting since it was installed.
The recommended maximum charge based on studies was set at 500 pounds per delay with a total of 10 delay periods or a total charge of 5000 pounds.
This value was judged to be conservative and would not cause excessive ground motion to damage onsite and offsite structures.
The quarry operation for site fill was limited to 400 pounds per-delay with a 5000 pounds total. These values have been continually revised as complaints of noise were registered by residents of the area, and during 1972 the blasts have been limited to 100 pounds per delay with a 1400 pound total, well below the maximum judged safe and conservative.
. i
4 C.
Response (cont'd)
Residents of the area have from time to time voiced complaints concerning the quarry blasting operation, fearing damage to their homes. To demonstrate that the blast induced earth shock was very small, a blast with a maximum delay of 400 pounds was monitored near the corner of the residence of one of the complainants. The corner of the home reportedly rested on bedrock.
The earth shock was shown to have a maximum particle velocity of 0.004 in./sec.,
less than the particle velocity of 1.0 in./sec. recommended by Dames & Moore as the maximum to which houses should be subjected.
The residents have also been informed that wind. conditions have a direct bearing on the amount of air blast noise heard.
If the wind is out of the north-northwest, then the sound of the blast is carried directly from the quarry to the residential area. This wind direction accounts for the residents complaining about some blasts being louder than others.
Respectfully submitted,
/i/i/L
/
r l
W. J. sc arthy, Jr.
. Assistant Vice President
& Manager of Engineering WJM/wst ME72-272 i
4 4
e
.