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Historical Groundwater Monitoring Data <br /> (9127/99 through 12/28/05) <br /> DATE DTW ELEV B T E X i41TDE TPH-G OXYGENATFSIADI)nTVES <br /> Detection Limits-+ a.5 0.5 0.5 1.0 0.5 0.05 0.5-!1.0 <br /> PSIL PSI- ped- Vgn YgfL -9/L PSn- <br /> Aaalydcal Methods-* 8260Bt 826OBt 9260Bt 824OBt S260Bt 81115M$• 6260E <br /> Mooltorlag Well& <br /> EI n <br /> EW-1 (36.23**) 10/30/2003 ExtmcdonWepEW-llaatatled <br /> 11/2&/2003 24.11 12.12 NA NA NA NA 230 NA NA <br /> 12/312003 21.91 14.32 <0.5 <0,5 <0.5 <1,0 36 a0.05 <0.5-<5.0 <br /> 314!2004 20.12 16.11 <0.3 <0.5 <0.5 <1.0 53 <0.05 <0.5-<5.0 <br /> 624/2004 23.79 12.44 <0.5 <0.5 <0.5 <l.0 <0.5 <0.05 <0.5-<5.0 <br /> 9f282a04 25.55 10.68 <0.5 @5 <0.5 <I.0 90 <0.05 �.5-<5.0 <br /> 12/292004 21.15 1 15.08 <0.$ <0.5 <p.5 <1.0 58 <0.05 <0,5-c5.0 <br /> 3222005 18.07 18.16 <0.5 <0,5 <0.5 <1,0 150 <0.05 <0.5-<5,0 <br /> 6!302005 19.17 17.06 <0.5 <0.5 <0.5 <1.0 <0.5 <0.05 <0.5-<5.0 <br /> 9/30/2005 19.84 16.39 <0.$ @.5 <0.5 <1.0 <0.5 *.05 <0,5-<5.0 <br /> 12282005 18.01 18.22 <0.5 <0 5 <0.5 <br /> 927/99 through 927!01 Groundwater Data Collected by Othcra. daAblic 1. <br /> DT W+Depth to wmer in feet blow top of casing, B,TAX+b=eae,toluam ethyl batsate,and total xyk=, <br /> EI.EV+Groundwater elevation at feet above mean sea Icvc1 T7H-G+total petroleum hydrocarbons,quantified as gasobne. <br /> f-Well collar elevation resurveyed on September 30,2002,relative MTBE mahyi tatiary-butyl ed=. <br /> to NAVD 88 datum. Oxygamdes/additives include:ethanol(EtOH).tertiary-butanol(TBA), <br /> 11 Well eol ar elevation surveyed on November 5,2003,relative di-isopropyl ether(DIPS),ethyl tertiary-butyl ether(ETBE),tertitny-amyl methyl <br /> to NAVD 88 datmn. ether(rAM6),1,2-dibronmethane(EDB),and 1,2•dichloroahane(1,2-DCA). <br /> +Well purged dry. NA-not analyzed. <br /> ND+not detected. <br /> NM-not measured <br /> . NS+not sampled <br /> Unit Canveraiom: Ngll-:micrograms per liter+tuts per billion(ppb) t+BTE}(canatitusats collected prior to 926102 wac anal}¢ed by EPA Method 8021 B. <br /> mg/U milligrmtts per liter-parts per million(ppm) j-Samples oolloeted prior to 926/02 were analysed for TPH-G by EPA Method 5030/Uit <br /> •+Sanplcs collected post 12/27/02 wac analyzed for TPH-O by EPA Mcthod 9015B. <br /> P:13000„ygO781 Boyett Mantec:M3761C Boyett Manteca Groundwater MonitorinplAeportsl4t]05Uilatorical Datems <br />