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Historical Groundwater Monitoring Data <br /> (9/27/99 through 9/28/04) <br /> DATE DTW ELEV B T E X MTBE TPH-C OXYCENATESlADDITIVES <br /> Detection Limits-+ 0.5 0.5 0.5 LO 0.5 0.05 0.5-5.0 <br /> p8A- P91L pgn- pg/L U911-• mg/L pg/L <br /> Analytical Methods-+ 826013f 8260Bt 8260Bt 8260Bt 826013 8015M$- 8260E <br /> Monitoring Well& <br /> Elevation <br /> EtOH,EDB,I,2-DCA,TAME-NA; <br /> MW-3 (33.81) 9/27/1999 16.61 17,20 ND 0.4 ND ND ND ND <br /> ND <br /> 12110/1999 15.92 17.89 ND ND 0.4 ND 2,100 ND NA <br /> 3/27/2000 14.81 19.00 5.2 2.7 3.5 8.8 7,300 ND NA <br /> 6/23/2000 15.66 18,15 It 1.3 12 22 940 0.22 NA <br /> 9/8/2000 17.57 16.24 NS NS NS NS NS NS NS <br /> 1229/2000 NM NM ND ND ND ND 130 ND ND <br /> 1/16/2001 16.13 17.68 NS NS NS NS NS NS NS <br /> 3152001 15.74 18.07 ND ND ND ND 290 ND ND <br /> 6142001 17.59 16.22 ND ND ND ND 3.3 ND ND <br /> MW-3 (33.81) <br /> 9/102001 19,38 14.43 ND ND ND ND ND ND ND <br /> 12117/2001 19.06 14.75 ND ND ND ND 9.6 ND ND <br /> (36.180 926/2002 21.26 14.92 <0.5 <0.5 <0.5 <1.0 <0.5 <0.05 <0.5-<5.0 <br /> 12/27/2002 19,68 16.50 <0.5 <0.5 <0.5 <1.0 12 <0.05 <0.5-<5.0 <br /> 3/21/2003 18.03 18.15 <0.5 <0.5 <0.5 <1.0 <0.5 <0,05 <0.5-<5.0 <br /> 6/2512003 20.27 15.91 <0.5 <0.5 <0.5 <1.0 <0.5 <0.05 <0.5-<5.0 <br /> 7/22/2003 21.08 15.10 NA NA NA NA <0.5 NA NA <br /> 8/19/2003 21.68 14.50 NA NA NA NA <0.5 NA NA <br /> 9130/2003* 22.15 14.03 NS NS NS NS NS NS NS <br /> 10131/2003* 22.42 13,76 NS NS NS NS NS NS NS <br /> 11/26/2003 22,44 13.74 NA NA NA NA <0,5 NA NA <br /> 12/31/2003 22.15 14.03 <0.5 <0,5 <0.5 <1.0 <0.5 <0,05 <0.5-<5,0 <br /> 3142004 20.93 15.25 <0.5 <0.5 <0.5 <1.0 1.2 <0,05 <0.5-<5.0 <br /> 6/24/2004 21.61 14,57 <0,5 <0.5 <0.5 <1,0 <0,5 <045 <0.5-<5.0 <br /> 9282004 22.63 13.55 <0.5 <0.5 <0.5 <l.0 <0.5 <0.05 <0.5--<5.0 <br /> NIW-4 (33.06) EtOH,EDB,1,2-DCA,TAME-NA; <br /> 9/27/1999 15.74 17,32 ND ND ND ND 140 ND <br /> ND <br /> 12/10/1999 15.17 17.89 0.5 ND 0.4 ND 34 ND NA <br /> 3/27/2000 13.21 19.85 1.5 2.9 4 9.2 43 0.11 NA <br /> 6232000 14.98 18.08 3.9 0.9 7.2 l4 81 0.13 NA <br /> 9/8/2000 16.62 16.44 NS NS NS NS NS NS NS <br /> 12/29/2000 NM NM 0.7 0.5 1.8 1.5 Ito 0.13 ND <br /> 11162001 15.31 17.75 NS NS NS NS NS NS NS <br /> 3/5/2001 14.93 18.13 0.4 ND 1.5 0.9 83 0,06 ND <br /> 6/4/2001 16,68 16,38 ND ND ND ND 130 ND ND <br /> (35.38*) 9/10/2001 18.56 14.50 5.5 4 14 1 24 47 0.18 ND <br /> 12/1712001 IBIS 14.88 2 6 2.3 11 174 0.09 ND <br /> 9/26/2002 DRY NM NS NS NS NS NS NS NS <br /> 122712002* 18.62 16,76 NS NS NS NS NS NS NS <br /> 321/2003 17,25 18.13 NS NS NS NS NS NS NS <br /> 6/25/2003 NM Nm NS NS NS NS NS NS NS <br /> NS <br /> 8/19/2003 NM NM NS NS NS NS NS NS NS <br /> 9/30/2003 DRYNM NS NS NS NS NS NS NS <br /> 10!2912003 Monitoring Well MW-4 Destroyed <br /> P:13000_prj13761 Boyett Manteca13761C Boyett Manteca Groundwater MonitoringkReports\3Q04\HistoricaI Data <br />