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• 1listoric21 Groundwater Monitoring Data <br /> (9127199 through 12131103) <br /> DATE DTW ELEV B T E x MTBE TPH-G OXYGENATESIADDITIVES <br /> Detection Limits-. 0.5 0.5 0.5 1.0 0.5 0.05 05-5.0 <br /> P&fL yg/L PgfL Pg/L pgn- tng1L Ps/L <br /> Analyticd Methods-* 8260Bt 8260Bt 926013f 826013t 8260Bt 8015Mt• 82606 <br /> Monitoring Well at <br /> Flevation <br /> NIW-10(36.09+*) 10/3012003 Monitoring Well MW-10 Installed <br /> 11/2612003 24.21 11.88 NA NA I NA NA 150 NA NA <br /> 12131/2003 22.14 1395 <0.5 <0.5 1 W.5 I <10 230 <0.05 I TAME-0.6 <br /> MW-I1 p6.1544) ]013072003 monitoring Well MW-I I Installed <br /> 1(126/2003 23.98 12.(7 NA NA NA NA 1,000 NA NA <br /> 12131/2003 21.8? 1 14.34 <0.5 <0.5 <05 <1.0 520 <0.05 TAME-1.1 <br /> EW-1 10130/2003 Extraction Well EW-1 lnstaded <br /> 11/2612003 24,11 }2.12 NA NA NA NA 230 NA NA <br /> 12/3172003 21.91 1432 <0.5 <0.5 <0.5 Q.0 36 <0.05 <0,5-5,0 <br /> 987/99 through 9127/01 Groundwater Data Collected by Others Analvvdah <br /> (ELEV)-Groundwater elevation relative to NAD83 datum B-T,E,x=benzene,toluene,ethyl henzene,and total xylanes, <br /> Well collar elevation rusurvcyod on September 30,2002 TPH-G-total petroleum hydmcm lane,quantified as gasoline <br /> (ELE V4)=Groundwater elevation relative to NA VD 83 datum MTBE=Methyl-t-Butyl Ethcr <br /> Well collar elevation surveyed an November 5,2003 Oxygemles/addhives include_Ethanol(EtOH),t-Butanot(TBA),Di-Isopropyl Ether(DIPE),Ethyl-t-Butyl Ether <br /> (ELEV#4)=Groundwater elevation rclative to NAVD 87 datum Ethyl-t-Butyl Ether(ETBE),t-Amyl Methyl Ether <br /> *=Well Purged Dry(excessive sedimentation) (TAME),1,2-Dibrorn-thane(EDB),and 1,2-13,61 oethane(1,2-DCA). <br /> NA=act analyzed_ <br /> DTV=Depth to water in feet below top of casing ND=not detected. <br /> NM=not measured. <br /> NS=not sampled. <br /> nit/-t r.9nvzgiona Ng/L,micrograms per liter=parts per billion(ppb) t=13TEX constituents collected prior to 9126!02 were analyzed by EPA Method 8021 D. <br /> mglL:milligrams per(iter-parts per million(ppm) =Samples collected prior to 9/26/02 acre analyzed for TPH-6 by EPA Method 5030/Luft <br /> •=Samples collected post 12127102 were analysed For TPH-G by EPA Method 8015B. <br /> P.13000_p313761 Boyott MantccaO76[A Doyen Work Plans&SRS RepontReportslQMR54Q0313761 Hist,G.W.Data 4QMR03.xis <br />