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13astd nn tht- utltLiE data thOrtiL.li and i[ic.rll htnrts of Wilt utlin.lt[on4prc not ,ufftLtcnth, c3c.fined
<br /> VIII' proposed the Installation of four (4) additional monitor t',Llls (MW-5 through M\\-S) to lull)
<br /> Lh,trattertrL the groundwatt-r pl[tmL flit. PlISiCHD ,,ran[Ld Ippr(]\.11 Of thL additional IMLSt[gauon
<br /> on Januar. 19 1993 BLMI-Lii March 9 and 11 ]9()4 Will- intit1llLd \1\V-5 through MW-ti
<br /> kMOLILI-ML LonLLn[rations of uJ1,01111L werL dLtLLlW In tilL 5011 from VlW-6 at 50 and :5 feet hu—. and
<br /> from \1\\-7 at 50 feet bl,s Lot% t0 t 0.ItLcl Luncentrattcrrls of 1 1'11-G and [31 EX ,%trL (ILteLtLd in
<br /> ,roiindN.,1ttr sanlplL1, LOI1LLtLd from M\\-6 MW-7 and NIW-S A surnmar% of thL soil and
<br /> (Tround«.ttLr 111.1[\ItLal data arL LontainLd in 1 how 11 Sue ( /till Mhlt_uun)t by W111- ThL wLl]s were
<br /> surne\Ld and ,radii-tit c.alLulaUOIIS IndiLatLd that a 0rotind-,NatLr rn0ttnd Casted bLnLatfl the "ItL
<br /> tndiLatiri� that rLchar�,L or [Lakagt into thL around\tater in thL IC111[0) Of MW-I and MW-2 \%,is
<br /> occurrim, ThreL potential sourcLS of reLllanx \%ere idLnttfiLd I ) the Lar gash water reL\(Jiri(! pit
<br /> I S%Sterll undLr the building 2) a leaking or brohLIl sever lint that crosses the area and 3) a ILal.ing
<br /> water suppl\ lift An ,MBAS (NItth)1 BluL NCt[Ve Surfactants) tLSt .,as conducted on ground\%ater
<br /> sanip]L% LoIILLtLd at the site in Ju]\ 1994. to investigate the prL,LnLL of detcrtmnts 1v BAS «as not
<br /> IdLteLtLd in thi- s,nnplLS
<br /> Aquifer tLsttllU (24-]lour pump test) V;as COnduLtLd 1t thL site b\ %%,I ir oil December '_`_' ,ind 23 1994
<br /> N1\\-I »as used as a pumping well and MW-4, M\\-6 M"1-7 and til\\-S .Ncre used as obsLr\ation
<br /> istlls rilL results indicated an optimum pumping ratL Of 5 gpin %pith an Lffective radius of 140 feet
<br /> AquitLr pLrmtab[lit\ i4as estimated at 126 upd/it'
<br />' Quarters\ ,round.+iter monitorml—I !las bLLn Londucted at the site b-, \411F throu�ah June 1995
<br /> HistoriLil uround\Later analytical data lndteatcs LIL,.ated conLLntrattOns of TPH-G and 13TEX in N,IW-
<br /> \t\\-2 \1\\-6 and MW-7 Lots to tract- conLentrat[ons of TPH-G and BTEX hast been dLtected
<br />' to \1\\-3 1,1\\-4 %M-5 and NSW-S The groundttater ]LIL] has risen apprommatci\ 10 feet during
<br /> thL p-ist three ,t-ars
<br /> A SILL int Lstl�,ation v.as LOnduLted b) Condor Earth Technologies Inc (Condor) on Jul\ 3 l 1996, at
<br /> the Canepa s Lar \\ -ish facilit-, Tile tnN esti uation included a res icw of emstina Invest[gattye reports
<br /> and , e\alllatton of the emstnl_ SVE s\stem located at the site The field\,ork \%as conducted in
<br /> I accordanLL \S ith Condor s proposal for SVE evaluation dated April S 1996 and the addendum to the
<br /> proposal dated \1a\ 2 1996 The report ,%as titled Sod I apor Ewaf-lion (SIE) Sttilenl Eialutmon
<br /> and d lied SLpttnlbLr 23 1996
<br />' Conder LaILLIIatLd that basLd on the soil analytical data -i%ailabie for the site t11e %Olume of
<br /> lu,droc-irbons present in the soil beneath the Silt [s Lstimated at ippro\unately 13 000 Pounds or
<br />' "_ 0-50 islons (6 34 lbs/--,al) DuL to un1.[lov n %anations In thL 110101OU'V and contaminant
<br /> conctntranons thL actual toluene of hydrocarbon beneath the sitL inaN Marti b�, an order of magnitude
<br /> cor mart from II1L eSttM-ItC
<br />' 131St(! oil tllt rLsusts of the SVI; S%StLln e�aluaUOli and site 1)ILl.ground Condor recommended that
<br /> operation of tht- ICJ be suspLndLd SHILL the s\steni did not IppLar to meet APCD permit conditions
<br /> 93"1,> (iestructi0il effiCtenL}) Condor further rtconwit-ndt-d that a 150 SCI^M Lat il\tic omdatton
<br /> 1
<br /> in„i i t-C)1 1 I,, in,,vi f4 d It the ,ite to L\tr-ict 'ind treat the [_'isolini- contamination in thL vadose
<br /> zor1L it \\as determined that thL LOriftgtiratlon of thL Lvstniu SVE appeared to be SLIHILIent to
<br />' remOVL a majorM of the rLm.i111Ing �4asollnL Contatnlnants III thL vadose zonL
<br /> Condor pati bLLII LonduLtin�.1 Quarter[\ Grotitld�%,atcr Monitoring at t1IL sitL MIICL Aw-nist 1996
<br /> Groundtt [tLr s implts ha-1L bLLn Lollected ill Various SVE; %tLlls and an IMIC-11 data Indicates 111,11 1114,11
<br />' IL%LIs of 11'11-(r ind 131-E\ 11.1\L bLen dt-100(-d to SVE t\Llls 'N-1 S\'-i YY-5 SV-7 and SV-9
<br /> Install )[)till Of I [It-\% ')%'I- sA siLnl has bLL11 ippro.Ld for [111', Atte
<br /> I
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