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21 December 2001 <br /> AGE-NC Project No 97-0312 <br /> Page 2 Of <br /> L <br /> On 18 Sept <br /> ernber 200 <br /> compoUnds To 1, the RandjI _e <br /> k � The Pu Purge the large f g domestic welts on-site <br /> rnP.was allowed to cycle e mestic well, a dra1u�, were sampled for volatile <br /> domestic well ycle on aloe w Ie or <br /> a faucet between the and off for approx � oPcned on the water storageg�Ic <br /> to cycle for approx well and (mately 15 minutes tai�lc <br /> large do mately 15 m the water hol To pur e <br /> 'nestfc water well oxi <br /> 04, 0­_notes A confirrr�tfon` da7g t was opened to g the small <br /> ctober 20p1 - ___ ground-watersaxzz ler allow the p� <br /> r _ - ` P was collected from the <br /> 2 2 COLLECTION OF GRO <br /> The de UNDTATE, SAA°LES <br /> Pth�to water was re-meas <br /> to sump , <br /> an equipinen ba er sees were retrieved fro purb�g to assure a min <br /> follow nk was Collected m each Purged well using <br /> miurn of 80%rechar <br /> head and dcconta�nation To sample from the discharge hose of the 2-inch new ge PrIor <br /> amples were P e the do inch subr sable bailers and <br /> fresh watez " collected from t znestic wells, a s meisible pur <br /> j sanples Each he sampling Port , �Pling Port w ge Pump <br />■ aPProved VOA vials c ng 0 5 A o transferred hile the pump was�oPexied at the well <br /> ane 1-liter amber ontain�g 0 5 of 18% h into three laborato Peratuig to obtain <br /> h ori the 1 battle without Pres Ydrochlonc acid as a S"tory-supplied <br /> large domestic w eatave The ample r 40-rte EPA- <br /> labeled,, placed lf1 ater well was collected mound water sample P enervative and into <br /> r Anal a chilled collected for eon <br /> Analytical IrtC cont and �natlon <br /> 2nalYtical lame (MAl) in Pacheco, a Calffo transp transported under 0-h SOA teals The s <br /> tY The s mra Oe chain-ot^custod amC were <br /> fPZes were analyzed fo Partnt of Health Services to <br /> I Total petrole", h DHS)`Certrfed <br /> accord hydrocarbons quant ed as <br /> accordance with EPA Methods 5030/SOTS gasolene <br /> iii and 355008 I PH gen and diesel <br /> Be�exre, toluene, ethytbenzerfe (TPS d) in <br /> (MTBE) in accordance with EPA MetotYlezieS(B <br /> TEX) and pectfvely, <br /> Volatile or hod 8020, methyl tertz ` <br /> ether <br /> (ETBE) <br /> organics <br /> and fuel oxygenates - MTB - -butyl ether _ <br /> EPA Method 8250°yd��d hY1 ether (TAIl�' da-isopropyl ether <br /> ) and Cert-butanol (TBDZPE)' ethyl tent-butyl <br /> m accordance with <br /> 3.0, FINDVVGS <br /> Ground water elevahans were deter <br /> the waSurveter casing elevations elevations (Table I wed by subtracting the v <br /> elevations on ) Ground water t In measured de ` <br /> M assessed y labarato a scaled slte'plan <br /> Fi directionwas Pths towaterfromtheb ( gure 4 Beteryanalysis anfield ) Hydrocarbon rm fined by contours <br /> observations Pact to g <br /> �ound water was <br /> 4dvaacearGeoHaviru�met�fa�Inc <br />