HomeMy WebLinkAbout17-l 6r-7L
6 .t L€*/<o ts t-c nr1
T,D&u.t*c c
E U/AA -f a/l - O t 0
Fcugt-J)r
L 0t c
r.i - f,.f l - 3
,'l-.6' E C- G CrT
A C te
,7t t e7 /P1G ,?.
E s70cE c
satf oJ F & c-",u t tee -rt
, !JL-L : f.lv\.ri,.rtr rr.arii
t 'iRlL coAs'r ANALvrrcAr-
1.+1 ;uburbon Rood. C-4. Son
CLIENT COPY
r.-r .a i',,." ",sj:... f r.
"
rrr-Y,
SERV ICES
Luls OblsPo', CA 93401
SAMPLE C 5942
Woter from fnsldo Lot
Sompled 7129, Rec. 7129, Anolyzed 816186
Collected by Chorles Del Mortlnl
Submltted by DeI Mortlnl
Component Determlned Detectlon Ltmlt
ln ppm
Ouontlty Reported
1n ppm
Benzene
Toluene
Ethylbenzene
Xylenes
Ethylene Dlbromide
Nophtholene
Al1cyc11cs
ALiphotics (low boi.llng)
Aliphotics (nign bolling)
Alkyloromotlcs
Unsoturotes
Hlgher Alkyloromotics
Decolins
USED to ESTIMATE TOTAL FUEL CONCENTRATION
not found
DIRECTLY QUANTITATED
0.0001
0 - 0001
0.0001
0.0001(EDB) 0.0001
0.0001
9.1
1
2
5
not
not
not
not
not
not
found
found
found
found
found
found
g
g
a
g
g
g
1
not found
not found
not found
not found
not found
not found
I BEST ESTIMATE OVERALL FUEL CONCENTRATION not found
BTX os o Percent of Fuel not oppllcoble
77-Percent Surrogote Recovery
Pleose note thot the best estimote of overoll fuel concentrotion ts
bosed on dominont fuel components rother thon on mlnor components. Wide
voriotlons 1n totol fuel concentrotlon volues bosed on mlnor components
ore to be expected. The BTX volues reflect the octuol concentrotlon
of BTX rother thon the estimoted fuel concentrotion bosed on BTX. The
BTX volues ore tndependently estobllshed uslng o stondorcl contolnlng
BTX ond EDB. Nophtholene levels ore slmllorly obsolute dlspersed con-
centrotions rother thon estlmoted fuel concentroti
lene. All other volues ore estimotes of totol fuel
ore reloted to o stondord of gosoline dissolved 1n
Respectfully submitted,
CENTRAL COAST ANALYTICAL SERVICES
Atry*c H^A)_L
Stephen C. Hovlicek, Ph.D. i
Vice President
ons bose tho-
FIRE PREVENTION
BUREAU
Data V?/t(Bvr
r
CT'
0s
t-
0FIn
conc
,; .i' I '",
F:'L-l[i 1.. 1.'' 1 NtiE t'(t''[t I hlT /tl]lrt- Y!; '
{-).t i ernt C.nPr';'
Oc:t-aber lCl, 19tl:1
{-:E:l'.11'Fif'r1., COAgiT Frtr,lr:tl'- Y't I l-lrlL- $llFit'' I llEl:i , I N[] '
l4l*tl !lutrlrrban FtoacJ, $an Lui':; Llbi'Epo' CA 9:;401
$AI'1PLE EJ f,5f,7
gluhmi.t:tecJ by Paci{i. c (ieosici'erncE"
Ercrr- i ng +l T *.r'L 1:t Feet' Rece'i.vecl Crctobelr 7. 19t15
E==::=fi5:;*l-:::;::-=5=====5:==:=:;g=:-E=:=i!:==i3===r:=::-==:gE=====:-======:-=::-:=riEi==::=:=E====:
c$rnr:clnent De,termj.necJ Detectj.on Lj.mit ouantill..*"oortecJ
- - ;l il;;;;:#i,;; ;;;;; - - - - - - - - - - - - - : :- l::'- - -
Bern; s:nE-' - - --o. ooi n"*,rlfii?:
To.[ t-rene {i. (JCr 1
Xyl enes 0. C!01 O' 01
Ethylene Dibrorn:ider (EDB) (1.()0(t1 nn'h' fournd
0. OO 1 ir. C.tO 1Narrhthal ene'
L,::i[:D .t:r:i Eti'T Il"16lTI Tt-]t-Frl-- F:t-lH-. ti0t![:El{TRrl'r l oN
Al i,cycl. i.c-.. O' ? not f cluncJ
Aliphatics; (.tnr,l br::il:ing) (l-:' not '{:clutnd
Al.iphatic::. (hjc;lt boi'l.ing) C)'i nct fauncJ
tl.t l,: l, I ;rr-oniaf- i r;s t-r. 5i nctt. { ctltnd
Un:iaturate's; O.5 not f c'rtrncl
F{:i qhr.rr All-,: ylarontert:ics; rl .! tro[ 'ft:ttrncl
Derc;*I.j.n* 0'5 nof fauncj
i BEE;T E::;TII'I/\TE gVEfiALL FUEL COI.ICENTRATIOI.I NCTt {OUNCI I
-.---.*;.-.-.- -.-.--.--*.---*
BTX as. a Ferrcernt c,{ Fuert nc't aFpl i' cabl e
please nnt(.t that the best estirnate o{ overal.t {r-rel concentr.ction is;
bcl$ed on dominant f ltell components rather than on mj.nor components' [lrJide'
var.iationsi in total furr:rl crtncentration valLle$ based ot.l minnr comptlnentl:;
arel to be elipectec]. The BTX val.ue.B ref t.ect the actual. concentrati'on
o{ BTX rather than the estinrated furelt concentrat:iorl baried ori ETX. Thr:r
ETX va!. uee ar€, i ndepenclent ). y estab l. i shed u:;i' ng a et andard cont 'ei n i ng
BTX and EDB. NaFrthal ene I ervel si are s;i mi I arl y absnl ute d:i spersed (:(ln'-
centrationsi rather than esrtimated fuel concentrationsi baec'c, on naphtha-
I einer. Al t trther vall ues, eire esti matea; o{ tptal {urel concentrati on atrtl
are relat-e.d to a standarcj of gasoline di*persed i.n cl.ean soj.I.
Respect*url I y submi tted.
LM
gtephen C. Havl. ir:ek' Fh.
Vi ce Frresi dent:
D.
LOGGED BY
. DHILL
DIAMETER
RH / r+r
B- 53
gtt
p,)ll:lc ( iL:gsutuNcffi, llo,1^.
Gct,lt't'l,rri,,,l R,,scutcl, ottd Errglnet-''rg
Nl ll.''riule 1'estin g Lalroratory
.rr) DUcxLEY no. (aol) sl'rze
8AN LUti oEttPo, cA g.}lol FILE:
DATE:
G2308
10-7-85
MONTEREY & PEPPER STREETS SERVICE STATIONBORING NO.)
SOIL DESCRIPTIONMOISTURESTANDAR
PENSAMPLESDeplh
a1 t Concrete2" As
Moi st
ery Moderately compact, 9r€Y SILTY SAND (SM)'
sl i ght'ly cohesi ve , non-pl asti c ' very f ine
to ioarie grained, abundant gravels to 1"
diameter (base)
Moderately stiff, black SANDY CLAY (CL) 'highly cohesive, moderately piastic
,)
- StTgI-t- water seepage, i ncreasi ng sands,
few grave'ls r
Very
Moi st
St'i ff, brown , weathered SHALE , i ncreasi ng
gravels to 2" d'iameter
Very stiff
Damp
END OF BORING @ 14.5'
No subsurface water encountered.
11
12
13
14
16
17
18
19
1
20
2
3
4
6
7
I
9
NorE: This log ol subsurlace conditions is a simplilicarron ol aclual condilions encounlered. ll applies al lhe location and limo ol lhis ercavat'on
)
i
:
1
1
I
I
i
I
i
l
I
)
1
':
:;
.
1
i
,:
'l
t.Jtil-. i-I Nl:;t-F:f 'fi I l,.ll frl'Jr:rt" \'l:;l
[)l i. errrt C:cir:y
llr::tnber 3tJ. 19{:l:)
CIENTRAL t,'trAS;'f AN/\[-.YTIUAL. SI:.RVICES:,. IN[..
141-C liiurblrrb,:rn Roarj. [3fln L-r-ti::i 0b:it:;po. l]ft 934(il
:iAMF,L.E FI 3530
lllurbnritted bv Faci'iic 6ensr:ience
Etor-i.nt-t # 1 at- 5 Feet
Reir:ervr:d []ctpber 7. 19135
=
j:'=,=
= = === = == = = ==:= ======:= == =====::= ==:i= == == == = = ==== === = == ==
Component Determinecl Deter:tipn Limit Out,antity Fteportedj.n ppm !.n trpm
Een: ene
ToI uene
Xyl enes
Ethyl. ene D, j. brc:m j. de
Naphthal enar
Al :i c.,,c I i cs
D I RE.T]TL.Y CJUAI.JT I TATED
(J. (:,(:t 1
0. oo1
r:r. (J(J 1
( EDt_{ ) O. OOO I
(l . (J(l1
LJS]ED to E:$TIMATE T0TAl.- FUEL.
r-t. 3
(:). : l.
1E:4rr-.
. rl. :;
nof f ot-rn d
(:r. ()';'
t]uNcENl fiAT I ON
1 1(:r.
l
Al. i phat- i cs ( I c'r,v boi.l. i nc; )
Alinhatics (lr:iah bt:rilint-r)
A l. [r v ]. ar c'rn.1t- i. c: si
Un s at ur at el:;
Hi c-:her Al. kvl aroma.ti.c:sl
Deca.[ i ns
(i, .1
(r. 5
(-), 5
t-\ 1,
l.f . :,
a. 1
1 r_,(-) .
4i!.
4;r .
15{:}.
I [{EST ESI'I|'IATE tl!'ERAI-l. F:IJE:L COIICEI\JTFIATI[]Fj (F.7.
I
BT): aEi a Pnrt:r:rnt mf Frre.t 7.:'
FIease note that t-he best estrmate of ovelrall. tttel cclnt:e'ntr-a1-iort i:i
based trn dominant {urel components rather than on minLtr components. t4ide
VcTFi.ations. in tatal. fuel conr:entratian valtreg ba::.ed on trri.ncrr componernts.
arer to be e:.loecta'd. The FT): r,alures re{lect the ar:tura.[ (:ont:t;ntrat:ion
of EtTX rathe.,r' tfran thE esti.m;rtecl {ue!. c:oncentratinrr based c'n E;TX. The
BTX val ues; are i ndependentl y estcrbl i shpcl r.tsi ng a standarcl conta:i ni ngt
BTX c-rhd EDE. NarlLhaJ.ene Ievel.s are $imj. Iarl.v a.bscl.ui:e d j.spe'rsied con
centrations rather than estirnated {lrel cc}nEFf,ntrationEi based trn naphth;t'-
I.ern'e. All. othe,r' v;rl.uesi ar€? e$tirna.te'$ of total +ureI cctncentrat:.cln ancJ
are relatncl to a standard cr'f nasoline dispersed in clean goil.
Re+$pectf rrl Iy s:urbrnj.tta-d.
t--')C
Stephen C. Ha','l .i ct:l':. Ph.
Vi. ce F'resi cJsrnt
D
f:rL.l[.[ [: I lrlt:E.f.:F]l:i I l'.11 i'\l'iril...\t !i .i
[.i .l :r tlri t Lt:ri"''
[Jctcibc,r' i::t-t" ].9'ti::;
EENTRAL. EOAI:IT rTNALYT I CFIL. SEF{V ICEs. I N(:] '
lrll-C gubur-ban Road. SirrFl L.lri:; Obi::1ro. Cf'\ c73;4Ol
$ANF.LE E 35J I
Submj.ttescJ by Facr{i.c [:eosciel'nc:e'
Bor r nq ff I at 1() Feet
' Recei.vecJ October' 7^ lclB::;
===========;:E=====:::=======:-=l;============E==::==================::g=:tf=5s:==
Carnporrent De'te+r-mi.necJ De-:'ter:tiarr Limj.t CIuant'itv Re'portecl
i n ppilr'i rr ptrnt
Ben= ernf-i
T o.l urenel
Xy). ene,s
Eth),1r:lne Di brr:mi de
Napht-haI ene'
Al.i.cvcIice.
Aliphatics; (1ctr.r
Al. i.phat- j.cs'. (tii.glt
DIRHCTLY OUT}NTITATEI)
o. oo1
(). ()(l 1
c). 0c! 1
( EDE ) tlr. (J(:r{-} 1
o. Oc)1
UEiED to EEi'I I MATE TDTAL F:tJEl-
o'::
n ot- f c'ttn c!
(:). (l(13
f). OO::;
ntrt 'f clutncl
nat i ouncJ
CT}NCENTRAT I OI!
n of 'l: r.,tln (J
boilinq)
bc:i l. i. rrq )
Al l.': ;l aront€lti (:!:t
Lln s;at r".tr at e:,s:
Hi rlf-rer Al l.:Y.t art:nr;rt i cs;
De:,c: .e l. i n c
r), !
r-r, 5
c). 5
rl. 3
o.::;
not
no{:
nst
nct
n r:t
rr c:t
* oltnd
+ oun cJ
f clutncl
f orrrrcl
f or-rnd
{: c:utncJ
i BES]' E5;1'I l.,lATE. Ot /ER/\LL. F'.LJEL. tltrNc:f:Nl rtAl I rJt,l n at t grr.tn cJ i
BTX as a Fer-c:e.'nt cf Flrel.not appl.j.cable
Fl ease note that the best esti rnate of overa.l I f urel cpnce.rn't:r at:i on :i s
bag3ecJ cln cJami.nant fuel components rathG..r than cn nri.nt]r conrponent:l' tdide
vari ati ons; i n total {ursl concerntrati on val Lte,i based on ml nor component's;
ar-e1 to be e>lpecte,cJ. Ther BlX vcaIL.re:: re,{l.e'ct the'actual. con(:e'rrtr-atic'n
of BTX ratlrer than the es'Lim.lted f urel concentratiort basecl cln BTX. Thet
FTX vaILte.s are+ i.ncJe:'pencJe-:ntly e.statlli::.he+cJ usinq al standartl sr-'nt;rining
ETX and EDg. Napthalene levels are gimilarty abgolurte d:isperFed cclrr-
ce,4trations ra.the,r than ers.timated {ue,1 c:snce;'rttrat j. ons base'cJ on naphtha-
Iene. AlI other values are estimates o{ tntal furel concentration and
are,re'latelcj to a. stancJ"erd of gas.oline cJiep:ereed irr cleiln soi. l'.
Respectf url 1 y submi tted .
F+u C
Steaphe,n C. l{avl. i ce'}t, lt'h.
Vice Fresident
D.
| /-\lJl'lLYt:, iF:L-lt: t- F: T N[iE f:([:'Fi I Nl'
(].[:ir:nt, IoPi'
(Jc t- 6b err- 3C;'r 1 5,t15
n[:NTRfll- Ct]Af:i'I AN,:ILYT I [)AL. Si[:FtV I CE:l:i . I hl(:; .
141-(l Sluburban fic:acJ. !jan Lr'.tis; [-tbj.spo. C/]r 9:.401
SANFLE: B 3532
Surbmi.tt-s.'d brz F'aci. f i.c Geo$ci.e-'nce
Bor i nq *l I a't 1:i Fee t.
' Recei ved October 7. 198::;
=::5i-;:==:::i===::-i===:-=:==;-*ai==:::-:::=:=ii:::-==;=;::l=ii=::=;:====::=i==:::::==:==:-:::==;:=:-i==E===:i=
Cornpc:nernt Dete.rmi.ne,d Detercticn Limit tluant j tv FieportecJ
in ppm in PFrn
Ec-.n: ene
To.[ uenal
Xyl. eners
Etlrvl ene D:i br omi de
N"ephthal erne
t.J$ED tcr
Al j. cyc I i c:;
Aliphatir:s; (1or,l bo:i I inq)
AJ. i. ph.-rtj c:-.'. (hj.oh boi l. ing)
A.[ l'; 'r'1 arotna L:i r:t:;
LJn:;at ur.et er..
H:i gher^ r:t.l l,:i'.t art:tna'h.:i t:s
De'cal in::
D I FIE(:TLY GILJAN I TATED
u. o(t I
(J . (:r (:) 1
Cr. OO 1
( EDE ) (j. (l{)rJ I
c). ()()I
n nt f or.rn cl
:) . (l(l !
(-i. L)C)l
no't 'f oltnci
not f ottnd
CCII\I{]EhITRAT I C}FI
nat f auncJ
ESTIHATF: TI]TAL F:UEI-.
(-). :
(). :
C). ?
c). 5
nnt:
nst
nnt
nnt
l-r t:'t
not
{ or-rnrJ
f cir.rn cJ
'f or.tn r:l
i c'r..rnci
{ ar.rntl
{ c,r.tncJE
(:)
o
EECT ES:TlMpIT'E CIVERALL FUEL. CNT.ICEIJTTiATITJI.I not- founci I
FTX ae. a F'e'rc:elnt c,f Futeil not- .er:pl i.cabJ.e
Flease notc: that the be,s't. estimate r-r{ o',/El-all'fureI rortcerntration:i s
ba:;ed on cJ6mj.nant fuel cclrnponents; rather than (ln rnj.nc'r cor'ponent$. Wi.de
variations in total {r-rel concentration valLr(?s; basecl orl ntintlt- ctlntponertts
ar-e. to be eiipe.ct-e.d. The BTX val.ues refl.ect thc'ac:tt.t.tl. cnncentrati.on
o.f BTX ra'Eher than the estimatecl {r-reI conEentration bastlcl crrr B'f X, The
BTX vat.uesi ar€:, indepencJently eet.ebl. ished usi.ng a standarcl containing
BTX and EDB, Napthalene levels ar(? sinrilarlS, alrso.tt-tte disper::ed l:on-
cerntration:; r'ather tha.n eEtimated fuel conce*ntrcltj.on:; baE.ed c:n n.lFhtha-
leinr:. Atl other valLtes are estimate,t:; o'f tr:ta.t'ft-tt+l t:ont:r:tn'trat:itlrt atntJ
arel re.Iat-ecJ tc, a standarcJ of gc'r:loli,n€] rJis'perged i.n c!.ean soi.l..
Rel:spectf r-rl .t i' $;Ltbrnl t ted .
St epheln C, Hav l. j. c erlr . F h . D.
V:i ce F'res:i clr-rnt:
L
F. ,CIFIC GEOSCIENCE, I. iC.
Ceoleclrrtical Ree.,atclt attd Errglrreerlrrg
lrlaterlale 1'eetin g l,aboratory'
!e0 EucrLSv rrp' (pt) s{'rzo
3AN LUtS ODTDPO' CA tl'01
November 5, ig85
I'"JI CFIVF.N
r\lfi\l 5 1g0j
Dr. Greg Steiner
6790 Avj I a Val lsy lri ve
San 1-ui s 0bi spo, CA 93401
SUBJECT: BORINGS AND SOILS ANALYSIS AT i371 MONTEREY STRIET, SAN LUIS OBISPO'
CALIFORNIA. G23OB
Dear Dr. Steiner,
At the request of Mr. Bob Richmond, borings were drilled at the above
referenced property on gctober 7, 1985. The property is the site of an
abandoned service station. Three underground tanks formerly used for the
storage of fuel are st'iII present on the site. The purpose of our borings was
to obtain and test soil samples to determine if soils beneath the tank shovl
ev'idence of petrol eum products.
FIELD AND LABORATORY INVESTIGATION
Three borings to depths of 15 feet were drilled in the locations shown on
the attached site map, 4ppend.ix A. A truck mounted Mobile 853 drill with an 8
inch djameter hollowstem auger was used. Soils encountered were visua'l1y
classifjed and logged in accordance with the Unified Soj ls Classification
System; copies of the logs can be found in ffppendix B. Samples were obtained
at 5 foot'intervals in each boring, placed'in sealed jars, and packed in ice.
Upon comp'letion of the drilling, the samples were transported to Central Coast
Analyt'ical Serv'ices laboratory and frozen to awajt analys'is. Four samp'les
were selected and tested for fuel fingerprint, 'including Benzene, Toluene, and
Xylene (BTX). The results of tests are attached 'in Appendix C.
.' 'l
l-nClFlC
Dr. Greg Steiner, G2308
GEOSCIIINCE, rnlC.
-2-November 5,1985
PRESENTATION OF DATA
Borings revealed that native soils consist predominantly of sandy clays,
with occas'ional interbedded lenses of clay sands and silty sands. Beneath a
pavement section of 2 jnches A.C. above several'inches of base, the sandy
clays are grey-b1ack to black 'in color and of a slightly stiff to stiff
consi stency. They are in a very moi st to damp state. l.,lith depth, the sand
content tends to'increase and gravels are common. At depths of 9 to 11 feet,
weathered light brown shale rlras encountered. Sfight water seepage vJas found
just above the soil/rock contact.
Al I of the samples obta'ined from Boring I and the lowermost sample
obtained from Boring 3 were tested for fuel fingerprint. The fol'lowing
results were obtained:
,r Best Estimate Overal l
Bor i ng Fuel Concentration (PPm
..j
DePth
5',
10'
15'
15'
87
Not Found*
Not Found
Not Found
CONCLUSIONS
The test results indicate that the upper soils show evidence of petroleum
products. Although only one sample from the 5 foot depth was tested, a1'l of
the samples retrieved from the 5 foot depth exhibited odors that are
charactelistic of petro'leum vapors. Simi'larly, none of the samples obtained
at 10 feet and 15 feet emitted di scern'ible odors. It 'is theref ore felt that
the test results are representat'ive of the actual site condit'ions.
1
1
1
3
*BTX detection limitt 0.00L PPm
'-i
;l]
J
PNCIFIC
Dr. $reg Steiner, G230tj
,-.)
GEOSCIENCE, Ir.IC.
-3-November 5, 1985
The depth at which detectable levels of fuel concentration appear to be
present, however, are not considered consistent with the typical pattern of a
leak.i ng ' fuel tank. Normal 1y when a tank leaks, the hi thest fuel
concentrat'ions are found just below and surrounding the bottom of the tank.
The subject tanks were measured and found to be 12 feet deep. The samples
obta"ined at 15 feet, however, had no discernible odors and the two samples
tested were found to be free of detectable fuel components.
The test results suggest that the source of the fuel concentrat'ion is
something other than the tanks currently present on the s'ite. As the base
material appeared clean, the source may date to a much earlier use of the site
prior to the paving w'ith asphalt concrete. It must be stressed, however, that
this is speculation.
In summary, wh'ile it can be stated with relative certainty that the
source of the fue'l concentrat'ion found 'is not the ex'isting'tanks, the source
and extent of fuel concentration in the upper soils are unknown at th'is time.
. ysrJp5 Jru1j,
PACIFIC GEOSCIENCE, INC.
frS,
.ll'1S/M8:mm
')cril(: (;H$scluNC[-i, I -"0.
Gct,lt't'l,rrit',,1 lt"s,'o..1, urtd Errgilreertrrg
I\latt'riuls'l'esting Lalroratorv
Jixr DucxLEY nP, (sos) sq-rzo
. sAN LUIS OEISPO, CA 9J401
2" As 1 t Concrete
LOGGED BY:
DRILL:
DIAMETER:
RH/KH
B-53
B"
FILE:
DATE:
G23OB
10-7-85
sti f
mode
dant
f,med'ium brown CLAY SAND (SC) 'rately cohesive' non-P lastic, abun-
ravels to 2" d'iameter base
erate S ' 9reJ ac
CL hi cohesi ve moderatel I ast'ic
g t ys , 9F€Yslihtlcohesi ve non-I ast'ic
era e ys ac
I
,t
S
Iighly_coheGrgl_green,
Abundant la
slve,moderately p1 astic
fine to coarse grained sand
rge gravel s
i
:1
v.'
'
,l
I
4
:l
- Green 6rown
- StTtT,lTght brown, increasing sand
content
NOTE: This log ol subsurlace conditions is a simptilication ol actual condilions ancounlered. ll applies al the locslion and lime ol this excavalion'
-^.,
ls^. ^l ^lh^' lmalir.nc and linrr.c
MONTEREY & PEPPER STREETS SERVICE STATIONBORING NO.I
SOIL DESCRIPTIONMOISTURESTANDARD
PENDepthSAMPLES
Moi st
Damp
Moi st
Moi st
Moi st
ery
ery
Danp
i shTl
ompac rg
- VeFy-compact
rown weat ere
tMos
Mo 1S t
END OF BORING @ 15'
No subsurface water encountered.
11
12
13
14
16
17
18
19
1
1
1
20
2
3
4
5
6
7
B
I
r''l..tl' [(] ( rL'.{J5Utr:l\Ut:,
Cr:ol.clrrricnl ltt:seorch urrtl lirrgllre
Nlal.'rials'l'eetirrg Laboratory
.r,r., BUCKLEY no (mr) s+-rzo
8AN LUIS OBliPo' cA 9J'01
!r '\
r lu'
rg
LOGGED BY:
ORILL:
DIAMETER:
RH / r+l
B-53
gt'
FILE:
DATE:
G2 308
10 -7 -85
MONTEREY & PEPPER STREETS SERVICE STATIONBORING NO.2
SOIL DESCRIPTIONMOISTUREST
PENDepthSAMPLES
2" As halt Concrete
slightly cohesive' non-P
graiels to 1" diameter (
'lastic, abundant
base )
y compact, 9r€verae
Moi st
ery
Stiff, gr€J black SANDY CLAY (CL)' highlv
cohesjve, moderatelY Pl astic
Moderately stiff, greY green brown
51 i ght water seepage
sT'ishElt
Danp
amp
moderatelY cohesive'non-p1astic, coarse
rown teratey compact,
ra i ned
ererown weaery s
- S]Tgl.t-lv dense
Very
Moi st
ist
END OF BORING @ 15'
No subsurface water encountered'
11
12
13
14
16
't7
18
19
1
20
2
3
4
6
7
I
9
NorE: This rog ol subsurlaco conditions is a simprrrication ol acruar condrrions €ncounl€.ed. ll appliss al lhe localion and limo ol lhis oxcavalion'
Subsurlace condtlions rnav diller al olher localions and lintos
&l7.eilEll8i5xlgtffiBn0*iE$iils'iir,'€!:.ti:irljr'-?ri;eJ-ir,;:*.6!,rraiji-:-:-,,.-
flon*ery 9*reef
,o
Jr
$s-)
tti
+(b
(b
-t-
AI
{x rct inaJ
tan ks
I o
lFlo Rord San Luis CA
O Dorrng Ldron
Gts IDNOII {805} 544-3276