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i <br /> � Selsmic Zone <br /> Wc recommcnd Sitc i lass C in accordancc wilh 113C 2006 bc utilized ti�r scismic dcsign. Rccommcndcd <br /> spcctral rcsponsc acccicrations for Ihc sitc arc providcd hclow: <br /> Spaetral Responae Aceslerotlons In Aeco►dance with 2006 IBC <br /> (SRA)and Sita Coeflicienle ShoM1 Perlod 1 Second Perlod <br /> Mapped SRA SS= 1.26 S7 =0.45 <br /> �. Site Coefficienls Fa= 7.0 Fv= 1.35 <br /> Maximum Considered Earthquake SRA SMS= 1.26 SM1 =0.61 <br /> IDesign SRA SDS =0.84 SD1 =0.41 <br /> Note: <br /> I _ Sile Clas�C Description�Very Aense soil and sofl rock <br /> Llque/acNon Potenflal <br /> I I.iyucfaction refers to a condition wherc vihratinn or shaking of �he ground, usually from earthquake <br /> � forccs, results in thc dcvclopmcnt of cxccss �rc pressures in saturatcd soils and subscqucnl loss of <br /> strcngth. This can result in vcrtical oscillations and/or latcral sprcading o( thc nffccicd soils with <br /> I accnmpanying surlace suhsidence und/or heaving. In gcneral, soils, which are susecptible to liquefactian, <br /> includc loosc Io mcdium dcnsc dcan Io silry sands which arc snturatcA (i.c., oclow thc watcr tablc). <br /> [�ascd on thc ohscrved groundwatcr condilions in our borings,and subsurfacc soil.; (a limitcd thickncss of <br /> lill ovcrlying vcry dcnsc glacial till�, thc risk of;iqucfaction is low at this sitc. <br /> Ofher Cnnsiderations <br /> I Wc strongly rccommend that all conncc�ions to thc huildmg bc flexible to allow diflcrcnlial mavemcnts <br /> to occur bctwccn thc huilding and thc adjaccm ground during und aftcr an carthquake. In particular, it is <br /> I important that wherc gas, sewer and wa�er lines cxtend to new swcwrcs, ihey bc fitted with Ilcxible <br /> conncctiuns at thc building conncction. Wc also recommcnd th�t awomatic shut-off valucs, iriggcrcd by <br /> scismic acccicrations, hc installcJ in �as and�eatcr linc�Icadin� �o ncw huildings. <br /> CANOPY STRUCTURE <br /> Wc undcrstanJ a drivc-ihrou�h canopy sirucwrc will hc constructcd within thc cxis�ing faciliry locatcd on <br /> � thc soWh siJc of K�sch 1'ark Road. 'Phc canopy s�ructurc will bc Icealcd nn�hc wcs� sidc oflhc bus wash, <br /> and u-ill bc stccl r'ramc and slab-on-gradc construc�ion with rclativcly ligh� loading. Prcvious <br /> explorations in this vicmiry include horings 13-4 and B-5 completed by Gcafingineers io 1993. <br /> Subsurfacc soil condiiionc cunsistcd of up lo 5 fcct of mcdium dcnsc silry sand and s::nd fill overlying <br /> dense in very dense glacial till. 'I'hc recummendalions pro��ided in the prcvious sections Shaflnn <br /> lvnoidariun Si�ppnrr, .17uh.r-un-Grndu, and Sei.�rnic Uc.ri�,m are appmpriate fur dcsign of the swclure. <br /> n scasonally perchcd groundwatcr cnndition should bc anlicipaled abovc Ihe glacial lill deposits and <br /> Jensc silry sanJ lill. Puvcment surfaces should hc slopcd to drain as rernmmendcd in Drninage <br /> I ('rinsidrralinns. A rcnmc�c� looting drain is also appropriatc for new swctures. The footing drain <br /> shnuld consist o(rigid PVC or AUS N-12, not �hc Ilcxihlc ADS varicry. llic fi�ting drainpipc should bc <br /> placcd such that it is at Icasi 12 inchcs bclow adjacent slabs. Rnof drain�gc should hc collccled in tight <br /> I <br /> I Fik 1',� !avS.oly.ni PaXe/0 GEOEMCINEEIIf� <br /> v,�� J'. 7iNw <br />