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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 /> I <br /> Concentration(ug L) <br /> Monitoring Well# Sample Date TPH-g - 1,2 DCA Benzene Toluene Ethyl- Xylene <br /> benzene <br /> MCL NA 0.5 1 150 300 1,750 <br /> RWQCB ESL No1Q1 100Nme2 200 540 380,000 170.000 160,000 <br /> MW-DIS-14S 2/21/2002 ND S 8.2 :". ND ND ND ND <br /> 5/13/2002 ND 7.2 ND ND ND ND <br /> 8/12/2002 ND 4.2 € ND ND ND ND <br /> 12/9/2002 NA ts.:=4.4UM NA NA NA NA <br /> 3/5/2003 ND 42-'s: ND ND ND ND <br /> 5/16/2003 ND €_'',33 z4 ND ND ND ND i <br /> 7/30/2003 ND 4.4 rF;Fd ND ND ND ND I <br /> 9/9/2003 NA .5'-r=2 U-Rca. NA NA NA NA <br /> 10/7/2003 NA =.tite4.9'=: NA NA NA NA I <br /> 11/12/2003 ND 1.4 snu ND ND ND ND ; <br /> 2/18/2004 ND32.ai5 ND ND ND ND <br /> 6/1/2004 ND2.4a'n ND ND ND ND <br /> 9/14/2004 ND Ses2.0'S ND ND ND ND <br /> 12/20/2004 ND s:€t 1.8 i11.11 ND ND ND ND <br /> 3/22/2005 ND <50 . 1.6 Rv ND<0.5 ND<0.5 ND<0.5 ND<0.5 <br /> 6/21/2005 ND<50 ':'u'.1.2 au ND<0.5 ND<0.5 ND<0.5 ND<0.5 ' <br /> 8/30/2005 ND<50 MJi:1A-V;s ND<0.5 ND<0.5 ND<0.5 ND<0.5 <br /> 12/9/2005 ND<50 1.0 ND<0.5 ND<0.5 ND<0.5 ND<0.5 ND<0.5 i <br /> 2/23/2006 ND<50 084ND<0.5 ND<0.5 ND<0.5 ND<0.5 <br /> 5/31/2006 ND<50 %,R1.00,,,- ND<0.5 ND<0.5 ND<0.5 ND<0.5 <br /> 8/22/2006 ND<50 :!t:ND<1' ND<0.5 ND<0.5 ND<0.5 ND<0.5 <br /> 11/28/2006 ND<50 me"0.80' ND<0.5 ND<0.5 ND<0.5 ND<0.5 <br /> 3/6/2007 ND<50 m,0.96.,m, ND<0.5 ND<0.5 ND<0.5 ND<0.5 <br /> 6/14/2007 ND<50 g;;r 0.97.+�s= ND<0.5 ND<0.5 ND<0.5 ND<0.5 <br /> 9/19/2007 <50 0.64:.`.: <0.5 <0.5 <0.5 <0.5 <br /> 12/11/2007 ND<50 -:€<0.64:.--s:. ND<0.5 ND<0.5 ND<0.5 ND<0.5 <br /> 3/12/2008 ND<50 ,Y'p0.71di '. ND<0.5 ND<0.5 ND<0.5 ND<0.5 <br /> 6/2/2008 ND<50 'x-0.55= ND<0.5 ND<0.5 ND<0.5 ND<0.5 <br /> MW-DIS-14D 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 j <br /> 12/9/2002 NA NA NA NA NA NA <br /> 3/5/2003 ND ND ND ND ND ND <br /> 5/16/2003 ND ND ND ND ND ND <br /> 7/30/2003 ND ND ND ND ND ND <br /> 11/12/2003 ND ND ND ND ND ND <br /> 2/18/2004 ND ND ND ND ND ND <br /> 6/1/2004 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 /> 3/22/2005 ND<50 ND ND<0.5 ND<0.5 ND <0.5 ND<0.5 <br /> 6/20/2005 ND<50 ND<0.5 ND<0.5 ND<0.5 ND<0.5 ND<0.5 <br /> 8/30/2005 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 /> 11/28/2006 ND<50 ND<0.5 ND<0.5 ND<0.5 ND<0.5 ND<0.5 <br /> 3/6/2007 ND<50 ND<0.5 ND<0.5 ND<0.5 ND<0.5 ND<0.5 <br /> 6/14/2007 ND<50 ND<0.5 ND<0.5 ND<0.5 ND<0.5 ND<0.5 <br /> 9/19/2007 <50 <0.5 <0.5 <0.5 - <0.5 <0.5 <br /> 12/11/2007 ND<50 ND<0.5 ND<0.5 ND<0.5 ND<0.5 ND<0.5 <br /> 3/12/2008 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 3 of 4 The Source Group,Inc. k <br />