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i <br /> ( <br /> ( tiilt •rnd Clay Soilx. Cumprestiiblc mcdium s�iff to sii(f silt and clay soik �ccrc ob.crccd in cach ol thc <br /> ( borin�s (cxecp� hcring R-5) lo dcpihs ranginp I'rom 6!! to 12 icct hdow thc csisiing ground surl'acc. Thc <br /> silt/day dcposit appc;irs to bc ahscnt undcr thc�ccst sidc of ihc building bui is up�0 12 fcc� thickcr undcr <br /> i thc ;ouili sidc of thc buildinc ncar horing I3-6. Thc silt and day laycr incrcascs in dcpdi and moiswrc <br /> cumcni I}om Ihc nuilh�ccs� lo thc suulhcast. T:ic dcpths �o dcnscr bcarinc soils are summarizcd in <br /> � Tahlc I. <br /> � Glaciallc ConsalidAled Soils. Glacially consolidatcd soils �ccrc obscn�cd in thc borings irom a dcptli of <br /> ?'�4 1'cct �o thc dcpih csplurcd. Thc elacially consolidaicd soils gcncnlly consistcd of dcnsc tu vcry Jcnsc <br /> � ;illy linc sand ��'i�h occasional gra�cl and hard sandy silt wi�h ttacc gravcl. <br /> � Table 1. Elevation of Dense Glacially Consolidated Soils <br /> � Appro:im�b firou�d Dpth to D�nN Solh Ehvatbn of Gns�SoUs <br /> � Ezploratlon Surfau ENwdon(fwQ (hN) (h�t) <br /> B-1 82 9.5 72.5 <br /> � B-2 81 2.5. . . 78.5 <br /> D-3 79 6.5 72.5 <br /> ! -. .. . . -- - - - --- � --- ----� - �— <br /> � B-0 79 9 70 <br /> { B•5 79 5 74 <br /> ! Ei-6 78 12 66 <br /> l <br /> ( Groundwater Conditions <br /> � Pcrchcd ground��•:ucr�eas ubscnrd in horings 13-�1 and B-6 a� dcpihs ol'I i and 0.5 Icct bclo�v ihc csistinc <br /> ground sur(aca rcspcclivcly. Ground��:rtcr ohscncd in buring B-6 appr.ircd lo bc perchcd �cilhin ihc <br /> ( hasc cowsc and un Ihc upper mcdium slif7�clay. :\ piczonutcr ��as installcd in horin� 13-6 tu a Jcpth of <br /> 10 Iccl bclo�� ihc c�isting eround surl�acc. Ground��a�cr�vas mcaswcd in thc piuomcicr 2.8 Icct hclo�� <br /> � �hc ground surlacr onc dal' alicr drilling and i? �icl hclo��� ihc ground �ur(acc I'_ days aftcr drilling. <br /> (iround�c:ucr ob.cnrd in horing I�-4 appc;u'cd Iu hc perchcd on tltc Icss pcnncahlc dcn,c glaci;d dcpnsils. <br /> � Thcrc ��as no signitic:ml pruund��:ncr sccpagc uhscrvcd in ihc oihcr borings. Ground�catcr obscn:uiuns <br /> � rcprescnl conditiuns uhscr�rd Juring drilling and may not rcprescnl Ihc gruund�catcr conditions <br /> ihruuehoW ihc yc:u. \Vc anticipatc shallo�� gruundwa�cr sccpagc ��ill cxist in pcnncablc suils abocc thc <br /> � slil'(rla� and dcnsc w ccp' dcnsr �laciall}� con.olidatcd suils durinc Ihc �vcl �vinlcr and sprin� monihs. <br /> Gruund�c:ucr scrpaec is cxprctcd �o Iluciu:nc as a rcsull of scason. prccipitation,and o�hcr fac�ors. <br /> � CONCLUSIONS AND RECOMMENDATIONS <br /> ( EARTHQUAKE ENGINEERING <br /> �. Gcolinginccrs luis rc;iluakd �hc silc liir srismic haz;uds. including liquc�iretion. la�ct:il sprcading. taull <br /> � rupiurc �ind caiyhyuakc indwxd landslidin�. Our ccalualion indic:ucs Ihc silc docs not haec liquctiahlc <br /> suils prcscni �md ihcrcli�rr also has nu risk ol'liyuc(action-induccd lalcral .prcading. In addi�ion. Ihc siic <br /> ( h:is a lo�r risk of faull ruplurr anJ r.irlhyuakc-induccd landsliding. <br /> � \Vc rcc��nmicnd thr 200b Inlcmational 13uildin� Codc 1113C) parantctcrs (or Sitc Class, shorl period <br /> ,pccu:il respunsc ❑ccdcr,uiunlSsl. I-sttoud period spcclrol responsc acccicr,ilion ISiI. and Scismic <br /> � Coclticicni, P�:md Fc prescmrd in Tahlc ?. <br /> f <br /> ( I i6��,,.9?n.un'-nu � PnA�'�� GEOENGINEEIIf� /� <br /> ! Julr!'.:urz� IC ,� <br /> l � <br />