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estaber 4, i m Joe Foushard, Nous Ser,ise Breesh cpj,y
,s,s.a.e.a m u = -.
, e Date J. Ceek, Astang Assistaat to the l
Maanger for Feb11e Isiseesties, SAN 300806 TOUR M1 BJC Ar*==had are series of eens artistas tedey superting en the seus junket needsy to the Bodega Emed este. The -
f ; t enshed with l
ass 11 m's were these WWd to you this seeming.
l A sepy of the Bodega appeasets' meus senesas and letter to Chatamaa l
Seabers feasing about site seestrustsee stas ase atteshed.
Attacheestas
- 1. Clip, s.F. Chemmists, 10/8
- 2. Clip, S.F. Beaminer, 10/4 l
- 3. Clip, 8.F. Neue Call Se11ette, 10/8
- 4. Nous Release, N. Calif. Amen. to Preserve Bedega Need & Barbor (sy) l
- 5. Fe.eeen 1er to sr. seabees, lo/s (ey)
. CC: inarold Prime. RSS. 30. e/etteshs. _
Sobert Leunesteas, B&at, Et, af=**= h=.
F. K. Fittene, SED, sq. w/attaeks.
R. W. Setth, Comp 1. V., SAB, u/atteshs.
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COOK st 10/8/63 i
[ h p 851217 Dy RESTO85-665 PDR g;
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The A-Plant Controversy S P%s ca 1Aule+: n sc j @v "
$.5 0 0.)
Vff., 550 $
l Sh B George Dusheck mm bm.
myr 7 disk broom in an attempt to fol-An o d-more than 40,000 years y M1.h ' O.g%,7 egg low it across the site.,
old-fracture runs across the bed h. Mhg.
k 4d k:@./.i AN E A RTH Q U A KE, he be-rock in the 0~>-foot. deep reactor pit g,, g.gg.," r
( /'Q.
lieves, would have fractured the on Bodega Head, but the same l
fracture extended only half way y;p%u(q@,, cg y, j -..
bedrock. Other forces - such as sediments as extensively as the
~ y6 %
across the pit site in the overlying
~.-
~ J>gy%
?
J variable settling or compacting of sedimentary gravels and sands,
. p 'd'].,.the rocks on each side of the frac-j p"
For this reason the University n 4
9 tively.
turc zone-might act more selec-of Calif ornia seismologist, Don ky. P%-(@f. F..W - dsd.Qt M Tocher, thinks it is " extremely un-L9/
j "But our inve tigation is con-likely" that the f ra c t u r e was s
Mg / " d '9 " ' ~ W
3 tinuing," he said. An attempt has causei by earthquake.
'T V' Qw. '
been mr.de to date the fracture The Pacific Gas & Electric Co., fi2 JJ..
- m. 6
@3 in the sedimentary fracture : cone.
from some pieces of wood found alarmed at the recently revealed opfninn of a U. S. seismologist- @? M.
~
.(
i i These were found, by the radio.
tv that Bodega Head is unsafe for a t.
active carbon dating method, to be reactor site, yesterday flew by '
g., ' _
pypp@%y:-
more than 40,000 years c!d.
_q.
heliccpter a group of Eay Area MM M M: Is. dependable, the fault newrpaper, radio, and..TV men to N ny h
would be clacM as inactive and q%M). M '
the reactor site for an on-they Iceture on geology by Tocher. pot
~,
1 unlikely to cause' trouble for the
%.s.:
hM&W ~ < L.3-.X ei nuclear reactor the PC&E pro-IT WAS IIATIIERcomplicated. hh
$2 i.k.
D%e ( h..MJp' poses to b'did ther.e to generate The fracture on the southwest side N
" N S. ]r"'
s electricity.'
of the circular reactor pit was first INo[
3 Against Tocher's. opinion that spotted in the overlying sediments hU
%$iWY.'p.
f t is " extremely unlikely" that the-
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when excavation ber:an. But these Q
'7#0d
's fault is an earthquake fault, must sediments have long since been O d
, -g gp be set the opinion of Dr. J. P.
carted away by' dump trucks to D E
.h
+ i Eaton, of the U. S. Geological Sur-make the road along the west k W:i';! F shore of Bodega Bay.
hh'T, vey, that earthquake fractures on e
,N The sedimentary. f r a e t u r e Bodega He'ad arq n 6t~cxpected G
therefore exists only on Tocher's Wf.
pg.
whenever the nrnrt4 San Andreas a
.M gg,
fault slips on a grand scale. In a
geologic map of the pit area. In W s 4..
DOS for example,it slipped nearly d
recent weeks a fracture has been NE S7 d
20 feet in a fraction (,f a second at j
uncovered in the same general @ff(~
% $.. f A..
4 Olema, a little way south of Bo-J location in the quartz diorite bed-E.
lO dega Head.
&b. 7 jg rock under the sediments; it ap-yh,Q "FEW PLACES on earth are exposed to more certain earth.
@J pears like a long diagonal crack i t !.
K.jL d
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t
, the pit wall, outlined with stakes h 3
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pdf u,
" quake risk than those along the k
fixed at its boundaries by Tocher and Elmer C. Mar 11 ave, a consult- @M"
$N
n u^ M Q q
' Sa'r Andreas fault," said Dr. Eaton.
E
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- Marliave was asked about such Ing geologist from Sacramento.
@K Q' ?i hf corcradictory assessments of the 7
^
It probably is the same fracture NF
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- d hazard.
If which existed in the overl iments, Tocher belleyes.ying sed, y$4db.N../.4
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,f opinion," he 'said." Engineers "There are always differences sti But he' WN ME 7 ~ ~. $'fi o
and Marliave lost it in those sedi. h
- L,.
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'n
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- i ments last spring and summer NP
~>dW and geologists had different opin-lons about the Golden Gate Bridge
.k](.
about halfway across the reactor pit site "cven though we got down b*9' 9n.
SPection crew before it was built. We are just h
trying to on our hands and knees with'a' b
we can." get at the facts as best d-
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THE SAN' FRANCISCO CHRONICLE Tuesdiy,.Octobpr 8,1963 PAGE 13 J I?.
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By Barney Petenen Terraces rise from the site of PGM's huge excavation at Bodega Head
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SEISMOLOGIST DON.TOCHER
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' ' :He's not convinced a quake caused the break
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The huge hole, blocked into plant arid top soil;retpoved from Santa Rosa and Peta-luma ' drove over. in their ;.
' W., e shape.with sides of lattice-from the new terraces so he
.,-y hn work steel, was begun only could study. seismic condi-own cars.,
M.dkdW[hhg fh six weeks ago.
tions there.
h.7Mcp/'
The decision on whether
.M REMOVAL In order'to stage the press
~~
/
go ahead with its $61 million {
PG&E will be permitted to
..ap*
'Tocher sala he had ' or. conference, PG&E chartered ii.).Y
..sd, 4}
p dered the removal of some two helicopters.to fly 20 re-plant will.be made by the
/
sg s"p;;J ~ M concreto from the side of the porters e and. photographers Atomic Energy Commission !
hole so he could observe the from the Ferry Buildmg to after it holds public hearings -
. d,%n/. dM'T/f break better. He added. he a landing area near Bodega in Santa Rosa, later this.'
q.. J / f $ $ 7 M fd
.may order some of the ice Head.. News. representatives year.
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p ELS4ER MARLIAVE '
t. Sacramento geologist l..,
,ing the terrain.
s.
' The road to the observa-
. tion ~ area of what PG&E 1 calls '" Bodega Bay ' Atomic Ng.,
Park" was covered yith
- gravel late, last month, and'
- cyclone. fencing was ' put uinto place ten day,s ago; i 5 ~
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seismic hazards investigator, j
who said the fault-clearly j
l' issued their optir istic replies visible on 'the side of the
, 'to an Atomic Energy Com-excavation-was evidence of
{@lOMg
.imission warning about the danger.
site in an on.the-scene press 73e rocg itseif is 93 miiiion
- s. conference 59 feet below sca years old, Tocher said, and
~
PC"*(OE"1.ML $ DjQ The two scientists, stand
- that it had had some breaks n*
level,at Bodega Head.
he was not distressed to learn i
' frig in the base of a 140. foot-in its lifetime.. Much of Cal-
,, wide hole being excavated ifornia's rock has undergone Bodega Pit
( fe the foundation of the similar damaged
"(" plant, spoke to photograph
- MOVDIENT ers and reporters who were 7 The one disturbing thing, By )lichael //arris.
[in a wire cage.
lowered into the drilling site Tocher said, was that there Chronicle Co,rrapauJe,g h.. @e site, large.enough to was some evidence of move-
~
ment in the much newer soil.
Bodega Bay
'[ hold a bull ring, will be dug a
i above the bedrock. These i Two scientists' retained
-[next two weeks. Tocher saidJ ut an ther 14 feet in the breaks, indicating shifts of
.by th e Pacific. Gas and two to eight inches, occurred
. Electric Company. report-
.d STUDY in soll that may have ban
{
ed yesterday that. they T,.'Then we will want to formed' as little as 42,000 doubted if the. discovery 0 make a thorough study be. years ago.
' :N.M fore reaching our final con- ).Tocher said the direction
'of a break in the bedrock
' >..l clusion," Tocher declared.
of the shifts did not mske should rule'out the utili.
'y For the moment, he saide him believe they were caused ty,s p ro p os e d nuclear
- he disagreed with the con-by earthquakes along the San
- .. clusion of. Dr. J. P. Eaton, Andreas Iault a quarter. mile Power plant here.
~ Gh e Interior Department's to the east. He said he will i "We have found.some-knosy for sure whether he thing we hoped we is n,ght in his belief after
'wouldn't," acknowledged the excavation is completed.
!Dr. Don Toche'r(seismolo' Marliave, former chief en-gist at.the University of gineering geologist for the state Department of water i
California's B e'r k e1ey Resources, expressed even campus.]
greater assurance.
i"But it's unlikelithat the 4 "Many structures are being-break (in the ground) was built and will be built along.
caused by an carthquake.'.
the San Andreas fault," Mar.
llave said. "These matters of i
. Tocher and Elmer C.Marli.
' slippage are easily corrected.
i ave,iSacramento. geologist, COM See Pge 23l Col.,3 The discovery of the deep' c1 break in the granite came C
.1 h*
pfter PG&E had spent an es..
h
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timated $2.5 million at the:
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4 " ?l Bodega site..
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The hillside where the 325.-
000 kilowatt plant would be
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built has been cut away into T.Q.
d' three big terraces, with fresh;
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beddings of ice plant / cover.
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compaction of s e d im e n t, f
days and sands, or a land.
n W
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% 'f slide in sedimentary mate,
&v e,ged 3.akfEE"ee O
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Ti'l sUnlikelv 9
s "in >.therevent.the rt>nt.
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}h&4'.M NW ). JM$yM T Myt can be. constructed to ac-j g Q-
' count for these two possibill-By JAMES SCIIURZ
- i ties, and it also is designed.
It is " extremely unlikely" qeW;W MM
-. one and a half times the that e a r t h q u a k e's have WdND%9 standards set for carthquake-Wh?
proof structures in the area.']
caused a minor slippage in p.Q.Q ;%*Z:. pet //9d ;.%g"I.+ i the earth at the Bodega Head M
Q7 their Investigation is not' While he stressed that
.p.p kT
, site of Pacific Gas and Elec.
' tric Company's p ro p o s e d 4i ge over yet, Bodega Head "looks j
- nuclear power plant.-
- y like a good site for a nuclear z
- In any event, the slippage occurred mora than 40.000 hp.)
%e p. plant."
4 d
d ty"3.'g,;ypr PG&E has approval from
' years ago.
M the Sonoma County Board of.
e Ghis was the conclusion of h V
4 Supervisors ~ and the State y !3 Public Utilities Commission j
j k,/ygd4 to build
- .Dr. Don Tocher, associate k y%
e research seismologist at the
.%t the $61-million y[6Mi$ plant, and the company has h University of California, who W]
t M
eg made an on-the scene inspec.LQQQgplJ%g
- R 3 applied to the Atomic Energy.
q x
tion yesterday"of the huge g%N?Qi Commission for a construc-i pit which is being dug.for gg M g.
. tion permit.
l r the nuclear reactor.'
g
- rQ f
He was backed by Elmer h
?.C. Marliave, consulting geo!- di_
h
. 'ogist, who.was chief engl.
4 neering geologist f o r ih e DR. DON TOCHER i
i
. State Department of Water Two. hypotheses S Utesources'from 1935 to 1956.'
k*. The two men have been covered in the. layers of retained by PG&E as'inde. sediment. He continued:
qpendent consultants to evalu-7. "The sedimentary layers e ate the found1 tion for the have been laid down 'n the
', stomic' power ' plant. They last 250.000 years. We tested thope to complete their study wood found in a layer above" e in the next two or t h r e e the slippage and found it i
w was more than 40,000. years i
], ceks.
'IN SEDIMENT old. It is impossible for us Bay area newsmen were to fix the time when the
~ ' flown up to Bodega Head in.sHppage occurred.Tfb helicopters to view the exca-3 As the digging contin-g ued into the bedrock -
.vation and the slippage first hand and to talk to the two which is granite, or techn!-
~
experts.
cally, quartz diorite-we dis-1 covered. numerous minor
- This was the utilit/s sn-faults. or fractures.
l swer to a report last Friday.
from Dr. J. P. Eaton, seismic f oit is extremely unlikely hazards investigator for the that these were. caused by U. S. Department of the In-earthquakes, or that the slip-terior" page and the faults are re.
- i Doctor Eaton, who. visited lagd to one another.
0 ' Bodega Head last May, con 7 The bedrock is quite old, Icluded that the site'"is not probably 93 milh,on years old, f ~ an adequately safe' location and quite hard. The San An-
'. for a ' nuclear power plant" dreas fault follows a scam of
'due to its proximity to the weak rock.
- San Andreas fault a mile and A GOOD SITE t
- p. a half away.
t "There.are two possible Dr. Tocher explained that hypotheses to explain the
',, r. as the excavation on the site slippage in the sedimentary
- began, a slippme ranging rock above. It might hur j
'f.. fromJ,to 8,ineyes was dis-been caused by a differential g
o j
f m:
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