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-..,.,r..; �':'1:_�^;�:.I^!C. <br />_ : l: . :r.. �. <br />3.3 11'cll Uc�•clopment and Sampling <br />I3ct�vccn Ma), 24 and July 1, 2002. ���clls f3-9. Q-1 I. I3-14, F3-17, :md I3-1S wcrc dcvclopcd in <br />ordcr to removc wrbid watcr from thc wcll and to cnhancc thc hydraulic connection �vith thc <br />surrounding formation. Thc most rcccnt wcll groundwatcr Icvcls arc prescnted on thc boring logs <br />in Appendix A. <br />During devclopment of wells B-14 and B-1 S, a slight to moderatc hydrocarUon odor and/or <br />petroleum sheen werc observed. On July 3, 2002, groundwater samples were collected from I3- <br />14, B-l7, and B-18 aftcr purging approximatcly threc wcll volumes of watcr and achicving stable <br />ficid parametcrs. Thc samplcs wcre submittcd to :i laboratory for pctrolcum hydrocarbon <br />analyscs. Ground�vatcr analytical results �rc discusscd latcr in this rcport. <br />4.0 G1:0'CI:CIINICAL LAISORA'I'Olil"I'LS'fING <br />Geotechnical laboratory tests ���cre perfornied on sclecled samples retrieved from subsurface <br />csplorations. Thc testing includcd ��isual classification, nawral moisturc contcnt, grain-sizc <br />:malyscs, and Attcrbcrg Limits dcicnninations. Laboratory tcsting was perCormcd to aid in <br />dassifying lhc soil and to detcnnine basic soil indcx propertics. Thc laborarory results arc <br />incun�oratcd int�> thc borings logs prescntcd in Appcndix t\. Dcsciiptions o( laboratory tcst <br />�irorcdures :in�l a sunun:u � of thc tcst results :irc prescnicd in Appcndis L3, Laboratory Tcstin�. <br />i.0 I�:NV'IKON\:I�.N'I':U, l.:UiO1L�"1'Olil"1'1?S'I'ING <br />�.I Inili:�l tioil'Ceslin}; <br />\\'hilc drilling borings B-12, 13-13, and B-lG, suspcctcd soil contamin:�tion ���as obscrvcd at about <br />I;, 19, and 25 feet bclo��� ground surface (bgs), or at about cicvation 130 feet based on field <br />srrrening (as described in Appendix A). A soi' sample was collected from each Uoring and <br />submitted to CC[ r�nalytical Laboratories in E��erctt, \Vashington for analyses. Sclected analyses <br />includcd petrolcwn hydroccvbons (by hlcthuds NNTPI I-G/[3TL\ and N\VTPII-Dx), and total <br />lcad. <br />Rcsults of thc initial soil analytical testing indicatcd that low Icvcls of gasolinc-r:mgc pctrolcum <br />hvdrocarhrn�s, :md traces of toluene and ethylbenzene aro present in soil at these Uoring <br />lo�:uiuns. 'I'hc Icst msulU :ir� �umm;u�iic�l �,n'I';ihlr I at thc �nd o� thc nport tc.ct. No �utcctions <br />, i. i �,.��.:�.�,�. e i,,;, i�,i 2 I-1-09G-1-I-OOi <br />� <br />