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TABLE 1 <br /> Concentrations of Selected Constituents in Groundwater in Wells South of Site <br /> Del Monte Foods Disco Site <br /> Stockton,California ` <br /> Concentration(ug/L) <br /> Monitoring Well# Sample Date Eth I- <br /> TPH-g 1,2 DCA Benzene Toluene benzene Xylene <br /> MCL NA 0.5 1 150 300 1,750 <br /> RWQCB ESL"ota1 1oo"ae2. 200 540 380,000 170,000 160,000 <br /> MW-DIS-11S 2/21/2002 64 180 r,;'. 0.45 ND ND ND I' <br /> 5/13/2002 76180 0.42 ND ND ND <br /> 8/12/2002 ND 110 a 0.50 ND ND ND <br /> 3/4/2003 ND .x;:.,.110.:+:i.: ND ND ND ND <br /> 182/22 <br /> 3 ND '+ . ND ND ND ND <br /> 3 ND 150 ND ND ND ND <br /> 03 NA �vt28�N"' NA NA NA NA <br /> 03 NA 44 NA NA NA NA <br /> 003 ND 96 ND ND ND ND <br /> 04 61 130 ND ND ND ND <br /> 4 ND 160NA NA NA NA <br /> 04 82 200 ND ND ND ND <br /> 04 ND 200ND ND ND ND <br /> ND<0 <br /> .55 ND<5 ND<0.5 ND<0.5 ND<0.5 <br /> 5 ND<50 8. 0 L ND<0.5 ND<0.5 ND<0.5 ND<0.5 <br /> 5 ND<50 7wmi' ND<0.5 ND<0.5 ND<0.5 ND<0.5 <br /> 5 ND<50 22 x ND<0.5 ND<0.5 ND<0.5 ND<0.5 <br /> 6 ND<50 ND<0.5 ND<0.5 ND<0.5 ND<0.5 <br /> 6 ND<50 o,M,;25.m,- ND<0.5 ND<0.5 ND<0.5 ND<0.5 <br /> 6 ND<50 61 ND<0.5 ND<0.5 ND<0.5 ND<0.5 <br /> 6 ND<50 16. ND<0.5 ND<0.5 ND<0.5 ND<0.5 <br /> 7ND<0.53/ /2007 14 ND<0.5 ND<0.5 ND<0.5 <br /> )! <br /> 6/15/2007 ND<50 15 ND<0.5 ND<0.5 ND<0.5 ND<0.5 <br /> 9/18/2007 180 €:.1804,! 0.51 <0.5 <0.5 <0.5 <br /> 12/10/2007 56 42ND<0.5 ND<0.5 ND<0.5 ND<0.5 <br /> 63/13/2008 ND<50 ND5 <br /> ND D<055 ND<0.5 <br /> ND<50 m2:$ae: N <0.5 <06/2/2008 <0.5 <br /> ND<0.5 <br /> MW-DIS-11D 2/21/2002 ND ND ND ND ND ND <br /> 5/13/2002 ND ND ND ND ND ND <br /> 8/12/2002 ND ND ND ND ND ND <br /> 12/9/2002 NA NA NA NA NA NA <br /> 3/4/2003 ND ND ND ND ND ND <br /> 5/19/2003 ND =, 0.63,la r ND ND ND ND <br /> 7/30/2003 ND ND ND ND ND ND <br /> 11/11/2003 ND ND ND ND ND ND <br /> 2/17/2004 ND ND ND ND ND ND <br /> 6/2/2004 ND ND ND ND ND ND <br /> 9/14/2004 ND ND ND ND ND ND <br /> 12/20/2004 ND ND ND ND ND ND <br /> 3/23/2005 ND<5 ND ND<0.5 ND<0.5 ND<0.5 ND<0.5 <br /> 6/21/2005 ND<50 ND<0.5 ND<0.5 ND<0.5 ND<0.5 ND<0.5 <br /> 8/31.2005 ND<50 ND<0.5 ND<0.5 ND<0.5 ND<0.5 ND<0.5 <br /> 12/9/2005 ND<50 ND<0.5 ND<0.5 ND<0.5 ND<0.5 ND<0.5 <br /> 2/23/2006 ND<50 ND<0.5 ND<0.5 ND<0.5 ND<0.5 ND<0.5 <br /> 5/31/2006 ND<50 ND<0.5 ND<0.5 ND<0.5 ND<0.5 ND<0.5 <br /> 8/22/2006 ND<50 ND<1 ND<0.5 ND<0.5 ND<0.5 ND<0.5 <br /> 11/29/2006 ND<50 ND<0.5 ND<0.5 ND<0.5 ND<0.5 ND<0.5 <br /> 3/7/2007 ND<50 ND<0.5 ND<0.5 ND<0.5 ND<0.5 ND<0.5 <br /> 6/15/2007 ND<50 ND<0.5 ND<0.5 ND<0.5 ND<0.5 ND<0.5 <br /> 9/19/2007 ND<50 <0.5 <0.5 <0.5 <0.5 <0.5 <br /> 12/10/2007 ND<50 ND<0.5 ND<0.5 ND<0.5 ND<0.5 ND<0.5 <br /> 3/14/2008 ND<50 ND<0.5 ND<0.5 ND<0.5 ND<0.5 ND<0.5 <br /> 6/2/2008 ND<50 ND<0.5 ND<0.5 ND<0.5 ND<0.5 ND<0.5 <br /> Page 1 of The Source Group,Inc. <br /> f <br />