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L <br />L <br />.,. , ;,. :, ,.:� <br />I Surfoa andsubsu�face condiNons at tbeproja�ct allt werr apJored on Febnrary 1/, 1997. <br />` Tl�e swface e►n/uatfon contisled ojvlswo! r�rwnnafssanc� m�d tlie su6awfaos up(oiatiat c+a�*1�ed <br />ojaduancing thnt hollow,t�an mrgn soi! 6oringa to depdkr of approxtma�ely 8 to I.i fett be%w <br />� existing grudes. Tlie borings u�e duignated B-1 fhrowgh B-3 on ths Stte and Esplomtton Plan <br />(Figure I). <br />: , . , • , ,.� , , ,.- ,,� � � <br />79�e loeallon ond depth ojthe e,xploratlons we�e ssl�ted wlr6 rrgord ro tbs proposed ata <br />developmenu and wdn t6e constrainu oj6udget m�d site acceu. The Ioa+Nons of Hu aplanNons <br />were detmnined using o sitt plan provided to G!lts and by rneasuring frorn ufsNxg stte jeaha�cr <br />wttb a hand-held meoswring tape. Elerations werr lnterpolatcd from contowrs on a site p/an <br />psovfded by du elient. Aa mk, tbe uplorotton lo�tions sbown on Ftgwrc 1 and de►nNons noted <br />on tbe fogs shou/d be considered accurate only to the degne Greplied by tbe measuring rnetbods. <br />It sl�ould be anplwslzeJtlwt dre explomHons mbaled auWurfarx conditfons only at dLrerne <br />locations on d�e project ai�e and dwt odua! condidona could vary at other locatfons. T1ie notur�t mid <br />exten� ojaxy such lnriations wou/d not become evrdent unti! rnnstnrctron ncrivitiu ha►rc begun. Ij <br />sign�cnnt tiariations are oluen�ed at tiwt �ime, the conduslons and reoom�nenda�ions »wy netd eo <br />be mod�ed to reJlect actual condiHons. <br />:.., �,.,,. <br />Soil borings were adNaneed wrth 3-inch I.D. rnnNnuoua Jlrght hollow,rtan auger, ustng a <br />portab/e dril[ rig operated by an independent finn working undw subcontract to Giles. An <br />experisnced geotscAnico! sngtnetr fiom Giles conttnuoualy obssrvsd ths boHng, loggsd tht <br />subsurfaee rnnditions, obwined rrpresentative soi! samplu. and transportod tbe samplu lo Gfles' <br />[aboratory jor further classrfreatron und testing as deemed necessary. <br />Throughout the drilling operallon, soi! samplu wert o6tuined from the borings at ?h foot <br />ro 5 foot deprh rntervals by means ojS�andard Penetrarion Tut procedure (ASTM.�D-1586). T1�is <br />test and sampling method consisu ojdriving a standard 1-rncl� (outside diameter) splihbarr+el <br />sampler a drsrance oj18 inc6u into the soiJ with a 1�0.pound hamma fra-jalling a diatance oj30 <br />inches. The number of blows required to drive the sampler through eacb of lhrte 6-inch penetmNon <br />intervals is counted, nnd the tota/ number ojblows struck during the fina! 12 inchu is consldered <br />the Standard Penetra�ion Resistance, or 'blow count : Ija fora! oj50 61ows is struek withln ont 6- <br />inch inrerval, �he driving is ceased and �he blow-count is recorded as SO blows jor t6e aclua! numbes <br />of inches of penetration. The resalting Sfartdard Penerration Resrstanct mlues (N-valuu) provlde <br />a measure ojthe rela�ive densiry of granular soils and the rela�ive consistency of co6estve aoils. <br />