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t L-unosmom foe aumen samans N 301EE MIFREY ameGusaugEE EAastY GOIOG88BDIIER TAPE GleeBSS meen ggtman SWJEWt 55d5 CLIFF 3M S 70IL W1 M 9545 PE558 CDNFREENCE At 2005G& 3EAD e
Attached for year indesteetian are espies of esortes whtet W in Calideenia mouspapers fellmutag Pastite 6as and sneserte asepaw's russe sentaremme as meesse maad es w ay, ceteber 7.-
n i.1 Direeter Dummes Clark
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Attacheemt est A. A beh, General klaseear R. L. L:..ies. Director of Regulaties
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10/10/1963
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8709250160 851217 PDR FOIA FIRESTOB5-665 PDR
n-t L
y Scientists Studying. NPlant Site k
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. From I' age 1
..scismic hazards investigator, who said the fault-clearly
- issued their optimistic replies visible on the side of the
' to an Atomic Energy Com-excavation-was evidence of F,^ Vn b m,
' ' "i"' " **'".thc4cene press i"8 '" "' '"*
danser-
- site in rn on The rock itself is % million i
/. conference 59 feet below ses years old, Tccher said, and
. G(.E., '$ "DlQ
'"" " '""" "'' ta n d - " ***"'d* "4"'"
p F
i The two scientists, s that it had had some breaks
.. ' ing in the base of a 140-foot-in its lifetime. Much of Cal-L-
. wide hole being excavated ifornia's rock has undergone Bodea.saPit
- ror the rou=datioa or the simiiar damasen
,- plant, spoke to photograph-goygigNT I
.. ers and reporters who were y The one disturbing thing.
Uv :llichael l/arrl, T lowered into the drilling site Tocher said, was that therc CNo,Jctecopeyo,,a,,q p.in a wir,e cage.
was some evidence of move-Che site, large.cnough to ment in the much newer soil
.e.
Bodega Bay hold a bull ring, will be du above the bedrock. Thesc ut another 14 feet b W breaks, indicating shifts of
$ Two scientists'rctained by the Pacific. Gas and
. '.next two wecks, Tocher saidj, two to eight inches, occurred STUDY in seil that may have been 7
E!cetric Company, report-
"Then we will w a n t to formed as little as 42,000 ed yesterday that they
'.%make a thorough study be-years ago.
doubted if.the discovery
.'. fore reaching our final con- > Tocher said the direction i clusion," Tocher declared.
of the shifts did not make'~
of a break in the bedrock should rule'out the utill-
.y For the moment, he sa.d, him believe they were caused i
he disagreed with the con-by earthquakes along the San ty,s p r o p o s e d nuclear
- .. clusion 'of. Dr. J. P. Eaton, Andreas Iault, a quarter-mile Interior Department's to the east. He said he will power plant here.
'-Qhe 1 "We have found some-know for sure whethu he is right in his belief after Ihing we hoped we the excavation is completed.
wouldn't." acknowledged, qMarliave, former chief en-Dr. Don Toche'r[, e,smoh>-
st gineering geologist for the -
3
, gist at. the Um, vers,ty of State Department of Water i
[
California's Berke 1ey Resources, expressed c v c n I'
- campus, greater assurance.
4 "Many structures are being j
i "But.it's unlikely'that the built and will be built along a
break (in the ground) was the San Andreas fault," Mar-j caused by an carthquake."-
llave said. "These matters of l
4 Tocher and Elmer C. Marll-slippage are easily corrected."
geo1 gist, COST j
ave, ' Sacramento 9
The discovery of the deep Sec Page n, Co!. 3 break in the granite came after PG&E had spent an es-
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timated $2.5 million at the l
Bodega site.-
The hillside where the E 000 kilowatt plant would be i
built has been cut away into three big terraces, with fresh beddings of ice plant cover-f 1
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l. ' '. SEISMOLOGIST DON.TOCHER
' ;He's not convinced a quake caused the break i
. \\'.
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The hun hole, blocked into plant and top soil removed from Santa Rosa and Peta.
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. 2pe with sides of lattice. from the new terraces so he luma drove over in their ; -
.FM work steel, was begun only could study scismic condi. own cars..
e h,, ' ;,y).- * ' ', }
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six weeks ago.
.tions there.
Tlie decision on whether I e j;
- y. "' ' ~7 REMOVAL In order to stage the press go ahead with its $61 million -[
PG&E will be permitted to
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/.j Tocher said he had nr. conference, PG&E chartered 2
T i'
dered the removal of nme two' helicopters to fly 20 re. plant will be made by the *,
,1 f
'i concrete from the side of the porters and photographers Atomic Energy Commission
/
hole so he could observe the from the Ferry Building to after it holds public hearings -
IU break better. He added. he a landing area near Bodega in Santa Rosa later this ;
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.may order some of the ice Head. News representatives, year.
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ELMER MARLIAVE i
Sacramento coologist 1.
Ing the terrain.
The road to the observa.
tion 'arca of what PG&E calls " Bodega Bay ' Atomic Park" was covered with gravel late last month, and' cyclono fencing was
.into place ten days ago; ~put 1-1 L
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THE SAN' FRANCISCO CHRONICLE-Tuesdiy,,Octoby 8,1963 PAGE 'i3 j..
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. SITE bF' THE-PG&E'S PROPOSED NUCLEAR POWER' Pl. ANT The nuclear reactor would fit into the pit at cente'r o
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. d @ i W C.L J rial.
g ffkCfT
, '. I k: D>3 t "In either event, the plant 3
can be constructed to ac-EE'4 0gm' y Q'l
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y, count for these two possibill-ES%md; e j ties, aM 'it also is designed '
'By JAMES SCliUltZ d ir.m dMyg4 - A ^ g/
lt 'is'" extremely unlikely" tf {.%
w4 one and a half times the j ',$d@@Mg37p/q proof structures in the area f MN standards set for carthquake.
that e a r t h q u a k e's have
% %y W.f caused a minor slippage in phrg;.'.y.>
While he stressed tha the earth at the Bodega Head i
, site of Pacifle Gas and Elec. Hct 7dAU:A their investigation is not j_
- tric Company's p r o p o s e d dT'id.F over yet, Bodega Head "looks '
l nuclear power plant.
like a good site for a nuclear J 'qP. ' *. L '. a p plant."
'f n j
In any event, the slippage 4
i occurred more than 40.000 O l,.5 i PG&E has approval from years ago.
.7%
bm - the Sonoma County Board of Ghis was the conclusion of %[ r j %-;M@%
% Supervisors' and the State h#!;.7*9 [
Public Utilities Commission Dr. Don Tocher, associate.
i 9l 9
to build the S61 million research seismologist at the
- University of California, who p(4, 4.;. ' Y' C.'
plant, and the company has
.; made an on the-scene inspec.
gg ;' -
TQ applied to the AtomicEnergy tion yesterday of the huge Qp d.' iG t
3A Commission for a construe-
[J/f,7@ tion permit.;
pit which is being dug for bf_Sh
~7 3 gg]$pg*[PM g'Q the nuclear reactorf
- C. Marliave, consulting geol k' AU h,jd${ih Jt He was backed by Elmer icM yd ogist, who was chief engi-.
- necting geologist io r t h e DR DON TOCHER
. State Department of Water Two hypotheses 4 Resources'from 1935 to 1956.
the layers of
- 4. The two men have been covered. In
. rctained by PG&E as'inde. sediment. He continued:
endent consultants to evalu-g "The sedimentary layers p< ate the foundation for thehave been laid down in the.
. atomic power ' plant. They last 250.000 years. We tested
+ hope to complete their study wood found in a layer above
'4n the next two or thre e the slippage.and found it wecks.
was more thar 40,000. years
~
IN SEDIMENT cid. It is impssible for us 1
to fix the tce when the Bay area newsmen were
' flown up to Bodega Head in.'.Uppage occurred.2%
y, As the digging contin-g helicopters to view the exca. ued. into the bedrock -
vation and the slippage first which is granite, or techni-hand and to talk to the two cally, quartz diorito--we dis-
- experts, covered, numerous minor This was the utility's an* faults, or fractures.
i swer to a report last Friday1 uIt is extremely unl&dy from Dr. J. P. Eaton, scism',c that these were. caused by hazards investigator for the earthquakes, or that the shp-U. S. Department of the In-page and the faults are re-terig~
la}cd to one another.,te old, Doctor Eaton, who visited
'The bedrock is qm Bodega Head last May, cona cluded that the ' site'"is not probably 93 million years old, and quite hard. The San An-an adequately safe location dreas fault follows a scam of
- for a nuclear. power plant" weak rock.
due to its proximity to the San Andreas fault a mile and A GOOD SITE a half away,
- l. "There are two possible Dr. Tocher explained that hypotheses to explain the
. as the excavation on the site slippage in the sedimentary began, a slippage ranging rock above. It might have from,2 to 8, inches was dis been caused by a differential s
?l
('
The h-Plan? Controversy
- 5. F '!e n C'.m hi t e+: t to#N "
W G0o bV@dMV3 Gf ?@@GG@
whisk broom in an attem'pt to fol-By Geow;e Dushock mm w, r
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old-fracture runs across the bed Ny lc ".h.Q.4qh,;,. Q. % ~ h q low it across An old-more than 40,000 years mi Jp?
AN E A RT H QU A K E, he be-rock in the 65-foot-deep reactor pit EE$$j:,p,f' -
7 ' ;]j lieves, would have fractu 7,
'3% i A 1 7:Ti sediments as extensively as the on Bodega Head, but the same W.
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bedrock. Othcr forces - such as fracture extended only half way W :%,
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variable settling or compacting of a
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across the pit site in the overlying sedimentary gravcis and sands.
.]L..the rocks on each side of the frac-L ture zone-might act more selec-For this, reason the University F.
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tively.
of Calif ornia seismologist. Don k,
w Tocher, thinks it is " extremely un-ti; > -
njh c.d:.. W t.
"But our investigation is con-
% l.N "-"'"',:' w '. * *'%j tinuing," he said. An attempt has likely" that the ira c tu r e was %l
~ 1 ' 7; E been made to date the fracture caused br earthquake.
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alarmed at the recently revealed
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MJ from some pieces of wood found The Pacific Gas & Electric Co., P,. < >
fj in the sedimentary fracture zone.
4.These were found, by the radio-opinion of a U. S. seismologist-W' /
m that Bodega Head is unsafe for a active carbon dating method, to be reactor site, yesterday flew by ',n 1,
more than 40,000 years old, 1 f {p -p, If this is dependable, the fault helicor.er a group of Bay Area it,c V:g[p? In~~
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would be classed as inactive and -
newspaper, radio, and,TV men to v-unlikely to cause trouble for the -
the reactor site for an on-the-spot
? >.D'i j nucicar reactor the PG&E pro-Iceture on geology by Tocher.
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poses to build there to generate -
9 95I"N g p W M"t 3 IT WAS RATHEItcomplicated. Y electricity.
The fracture on the southwest side M a 'd ji' Against Tocher's opinion that of the circular reactor pit was first bd.
h.
it is
- extremely unlikely" that the W k? {c;.. f g, fault is an earthquake fault, must ld spotted in the overlying sediments %>
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$b.,'. V when excavation began. But these
.c be set the opinion of Dr. J. P.
.M ;j? # ;p, s Eaton, of the U. S. Ceological Sur-sediments have long since been i
carted away by' dump trucks to blQ.
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.Q vey, that earthquake fractures on
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make the road along the west MM"i fC% $^[
B dega He'ad are to be expected 7
shore of Bodega Bay.
whenever the nearby San Andreas
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The sedimentary. f r a e t u r e therefore exists only on Tocher's d
b fault slips on a grand scale. In DOG, for example,it slipped nearly 4'N > '
geologic map of the pit area. In recent wecks a fracture has been k,*; % z.- @.e.
20 feet in a fraction of a second at Olema, a little' way south of Bo-uncovered in the same general Vlh:'N 'RicM. N,i g -
e dega Head.
location in the quartz diorite bed-
"FEW PLACES on earth are -
rock under the sediments; it ap.
p'.h y., N pears like a long diagonal crack in Q J. o exposed to more certain carth-
' quake risk than those along the
- da.,g;,.
the pit wa!!, outlined with stakes My@M@E," -
"A Marliave was asked about such v
San Andreas fault," said Dr. Eaton.
fixed at its boundaries by Tocher and Elmcr C. Marliave, a consult-n'i ing geclogist from Sacramento.
6n r.,i -
N contradictory assessments of the s
It probably is the same fracture
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'i hazard.
which existed in the overlying sed, Wlp ^
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"There are always differences of opinion." he 'said." Engineers iments, Tocher believes. But he yC
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and geologists had different opin-N and Marliave lost it in those sedi. v!y ions about the Golden Gate Bridge
.ments last spring and summer T
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before it was built. We are just about halfway across the reactor Cage cany.ing inspection crew trying to get at the facts as best pit site "even though we got down "f.92 5 h,, C "r*6.,,,,,
- ' we can." '
4 on our hands and knees with^a' c
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