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_ 4 <br /> 02 Apnl2002 o 97-0312 F rt v <br /> AGE Nc ProlectN , <br /> page 3 0£5 <br /> AND GR <br /> pADVENT th ground _ 3 <br /> bsg3? e <br /> `event <br /> pITER ELEVATlO 4 feet below surfa � oniton _5 and _w <br /> 3 1 GROUND 30 S1 to -3� 0 e the 2S peceln Wells US 2 <br /> ed 1,0 - } ¢,7 feet sinc als of ntonitoring �vellsUST- <br /> w titer`elevation rang average of d Itttery als iri monitoring 4 <br /> Ground the screene ed iritery erred interval <br /> increased by ed within e screen 25 4 feet above the scre <br /> - .,water elevation table occurr 07 feet above the ately - <br /> o�d water 34 and ed approxiin <br /> US ,butwasbetweeh ndwatertableoccurr well datac011ected <br /> tbron iUST-4 The grwithmanxtr�n lg -February f Vo to <br /> well US'P"1 4 was combined a€ground <br /> o€the deep T- wton woad) on two sets <br /> US'T-3 andUS 3400 Ne cver��e titer floe <br /> data fromUsT`2' tnes propert`3 dtrectioix plow evr�nt Ground'feet/feet <br /> monitoring Dore T ruck x✓ d w ater €lOV 2002 morlitorxng Imately 0 0007 1 <br /> adjacent M ate regional groan theFebruarY <br />} from the Toxin} elate dunng adient of approx i <br /> an app car to Corr with an averagc gr ebruary 2'002 <br /> deters d to did not app easterly for , <br /> ,nater da ed to be ncxrth contours <br /> ,Nasinfe� ound water elevation - i <br /> dtrectian de acts the gr - - ATER SAM F <br /> Figure 3 p USS-4 were <br /> SATS OF CR4D thr©w ' <br /> Wells U5T-2 ondittons near <br /> yTIC r c <br /> A1. onrton g ware <br /> 3 2 AN event, m representative of ground the greatest impact <br /> mortitonng les fully be expeCtedtoh <br /> the February 202 gilded sanxPdrocarbons would atlons of <br /> n UST_5 at concentr <br /> Ouri g ,I Land may not ha here fuel by d <br /> �4drowwied saturated zone from UST-1 ,ar' In samples collected <br /> of the sa s detected Benzene>toluene <br /> the top the samples collected ec ively TPS-d weSpectively <br /> l resp }and 85 on, 5 at concentrations <br /> detected in l}and 550 N l0 UST- Total xylenes <br /> US-[-I and <br /> TPl3-g was ams Perliter(VI g)') ei trattons of 2 ollectea from respectively) the,samples <br /> 160 microgr S`f_5 Oct colic samples c l(UST-1)' 20 0/ 1, <br /> ` d U in the d 4 0 }Igi of S <br /> from UST-1 e,rrere detectcd7 $ Wg1l(UST-1) 'at`a concentration of <br /> 320 pgll and !I <br /> and ethylhen 1 BUST-5) and" from UST-1 centrations <br /> as high as 91 the sample collected 1,2-D at con and <br /> CA <br /> r 6 cantal ed �,, pCE) <br /> were detected in <br /> UST- enc i1,2- 71 V`g/l' <br /> collected from 2_dxclilflr°etb of 0 <br /> l,l�CA) 1 }' t cortcentraticins from <br /> respectively estkc well`` e sample collected <br /> dichloroetliane all.dam ted irI th <br /> 1'l- detected in the sm El.uas tlet <br /> '1vOCs, includln pCE),were addition,PC �` <br /> erre ( ec I4Vety � o f 0 74 Vxgll , r ound water <br /> tetrachloroeth ¢ 1, resp entrauon levels m the gr �}chaxn- <br /> 0 93 Wil and 11 � at a cone reporting 9p155)an <br /> we'll UST-1 oratory p14Stbl l dung <br /> monitoring bovcl�jLab'[DS9 les collected <br /> ds were detected a ort�1 water saMP <br /> enated eompoun Tlielaboratoryrep teal results a£ <br /> Np fuel oxyg carter endix� Arial <br /> tills Q G�E�v,ronmeotai,lnc <br /> samples collected ,,luded in App ' V �dv�need <br /> forms are IncIII <br /> of-custody _ <br /> f 6 <br /> 5, <br /> 1 ' <br /> 2 <br /> 4 ' <br /> 1 <br /> � i <br />