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APPENDIX A <br /> FIELD EXPLORATIONS <br /> GENERAL <br /> Subsurfacc conditions �ccrc cxplorcd a� thc sitc by drilling six horin�s. dcsignalcd I3-I through B-6. Thc <br /> bo�ing lo�alions arc ,hown on �hc Sitc Plan. Figurc ?. Thc borings �ccrc c�mplc�cd �o Jcpths of 21'/: to <br /> 31'/: fcci bclow thc c�isting ground swiacc and thc drilling �eas complctcd by lioloccnc Drilling 'ront Junc 4 <br /> l0 5. 2008. Thc Iccations anu cic��a�ions of th: cxplorations wcrc cstimaicJ in ihc licld by �.ipine Gam <br /> cxis�ing sitc impro��crocnls. <br /> Soils cncoumcrcd in thc horings ��crc visually dassificd in gcncral accordancc wiUi ihc classiticalion systcm <br /> dcscribcd iu �igurc A-I. A kc;� �o thc boring log symbols is alsu prescnlcd in Figurc A-I. Thc logs of thc <br /> borings arc prescnlcd in Figures A-2 ihrough A-7. Thc boting logs :uc bascd on uur inicrprctation of thc <br /> �icld and laboralury da�a and indica�c thc various Iypcs o(soils and ground�calcr condilions cncuun�crcd. <br /> Thc logs ;dso indicatc Ihc dcpihs at �vhich Ihcsc soils or Ihcir characicristics changc: alihough. Ihc changc <br /> may aclu;dly bc gradual. If Ihc ch:mgc occurrcd bclwccn s.unplcs. it was intcryircicd. Thc d�nsitics nu�cd on <br /> Ihc boring logs arc bascd on ihc Mo�� counl data ob�aincd in Ihc horings. <br /> Ohscnations of ground��alcr eondiiions �ccrc mndc during drilling and ;n'c prescnlcd on �he borinc logs. A <br /> �u:zomcicr��as inslalkd in borin� B-61u a dcplh ol'about 10 fcct. Groundwa�cr condilions uhscrccd during <br /> drilling rcprcxnl a short Icrin cundilion and may or may noi hc rcprescmati�c of Ihc long icnn groundualcr <br /> conditions:u thc silc. (irounJ�+:Ucr cundilions ubscr�cd duriug drilling should bc considcrcd approximatc. <br /> 13orin�s wcrc complc�cd using ulick-moun�cd,continuous-Ilich�, hollo��-:icm augcr drilling cquipmcnt. Thc <br /> borings��crc continuously monilurcd hy a gcotcchnic:d cnginccr liom uur linn �ehn cxamincd and classilicd <br /> Ihc tioils cncuunlcrcJ. oht�incd rcprescntali�r snil samplcs.ohscnrd ground�catcr condi�ions.and preparcd a <br /> dclailcd fop uf r.icli boring. <br /> Thc soils cncounlcrcd in dic borin�s �ccrc tiamplcd at 3'/- or $-fiiot �crlical inlcnal� ��ith a 2-inch outsidc <br /> diamc�cr �plil-h:urcl sl:mdard pcnciralion Icst ISPTI samplcr wilh a slandard 1dU-powid autohammcr in <br /> accurdnncc�ciih Amcrican Sociciy Ibr Tcsling and M1lalcrials(AST�9) D 15R6. <br /> Thc samplcs ��crc oblaincJ by Jri�ing Ihc s;unplcr IR inchcs into ihc soil �eilh a 140-puund mnomalic <br /> hanuncr licc-falling ?0 inchcs. Thc numbcr of bluws rcquircd liir cach b inclics of pcnctr.Uion ��:�s rccordcd. <br /> Thc blo�� rounl ("\-�;duc"1��I Ihc soil ��as c;dcul�Ucd;is ilic numbcr of blons rcquirrd liir thc tin,il 1? inclics <br /> of pcnc�ralion. 'This rcsistancc. or N-�aluc. pro�idcs a mcasurc of thc rclatiec dcnsit�� of granular snils nnd <br /> �hc rclaticc con+islcncy of cuhcsi�c soils. Thc N-��aluc (blo��ti��iiotl sha��n un Ihc boring logs haec nat bccn <br /> carrccicJ tix hnmmcr clticicncy. �1'hcrc �cry dcnsc soil cnndiiions or largc p:inidc. prccludcd driving thc <br /> liill I S-inchcs, thc pcncvaiiun resi�tancc li�r ihc partial pcnctra�iun �c;is cnicrcd on tlic logs. Thc blow coun�, <br /> :u�c sho�en on ihc buring lo�s;u thc rcspccticc samplc dcpih�. <br /> � <br /> l�JrSo.Sc)��-uu"-nu I�agf.4-/ GEOEMGINEEII� . <br /> - .hdrl'.:unA' I ; <br /> �l', <br />