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' r =saa 'ue„ yse r s"' _ ^oh —a�ir:.t� _ 3..' a' `•• '"'-'"'e „�„fi".sE MM <br /> '.cL�+. <br /> t-ra `.q. ' �v :urs; ter- ' ' ' : d .� ' ':r. " ""_ :• - ^ " <br /> F _ <br /> _ s <br /> colic' Lou lavnl 190nallno hydrocarbon contamination woo oboarved <br /> In all boringa, and Mill . Soil boring S®Z nampina containod <br /> Gignificant dmounto of hydroccrWn conotltuanta. 'Thu approximates <br /> latarni extant Of contamination in dopictod nn Figurn 6. Soil <br /> flcont"In,ation in axpQctad to oxtand benoath t10 collected from ha adjacant building <br /> houadlelevatedhlavoluwater <br /> of lw troleum hydro -ab <br /> monitoring wall M1f1 <br /> bon ca7nntituontn. <br /> Laboratory rauulto ars R,UmMorixad in Tables g. <br /> Data ch <br /> chain-of-cuntody forma and OA/OC documentation arra inciudasdtin <br /> Appendix D. <br /> 5.0 �CA.'�S�HgAT1C;tS <br /> 8acauae 0011 contaminat:lor nxtanda vertically tv groundwater, and <br /> laterally beneath the ma"Oleum atructurc, and ias, theroforaa, not <br /> accaaalter +nxtavation 10 not conttido-rod a feaniblo Gail redia- <br /> tion �+ltornativa. Soil vapor extraction may baa viable elternn- <br /> t1vo; however, the lou pnrmeability nnilg may Inhibit t vapor <br /> axtractior, oystan vanaen. Prior to conelderation of a vapor <br /> oxtrae�tife ey®t©m, a field tact 10 r€�cOmmOndod to dotormina <br /> J matha6 Offectiv�noan. <br /> To observe fluctuations in statin: <br /> nant concentrations ir3 groundwater Iovo1 and contami- <br /> naCollyteg and analyaxn Of dnnadditional rev naszploce lise recommended. <br /> J�r►alyttats 0houid be the oaoa an the <br /> dolatIon of organic; load, which wanpnotious detectedlo <br /> After zoVin�, ;st the, reaultp, additional wetlla to dat with the <br /> l0tarasl oxttstst of te=Ine th <br /> graundwaater contamination may ba armino the <br /> isra5p0soa!. <br /> i <br /> } <br />