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G <br /> TABLE 1 I <br /> Concentrations of Selected Constituents in Groundwater in Wells South of Site <br /> Del Monte Foods Disco Site <br /> Stockton,California <br /> f <br /> Concentration(ug/L) <br /> Monitoring Well# Sample Date Ethyl- <br /> benzene <br /> th I- <br /> benzea ne <br /> TPH-g 1,2 DCA Benzene Toluene Xylene <br /> MCL NA 0.5 1 150 300 1,750 <br /> RWQCB ESL No11 100Note2 200 540 380,000 170,000 160,000 <br /> MW-DIS-12 2/21/2002 ND ND ND ND ND ND <br /> 5/13/2002 ND ND ND ND ND ND <br /> 8/12/2002 ND 0.90`t: ND ND ND ND <br /> 12/9/2002 NA 0.66 1=g NA NA NA NA l <br /> 3/4/2003 ND ND ND ND ND ND <br /> 5/16/2003 ND ;:;t 0.53 Nn ND ND ND ND <br /> 7/30/2003 ND !vt 0.51ga= ND ND ND ND <br /> 11/11/2003 ND ND ND ND ND ND <br /> 2/18/2004 ND ND ND ND ND ND <br /> 6/2/2004 ND 12 U ND ND ND ND <br /> 9/14/2004 ND 0.64ND ND ND ND <br /> 12/20/2004 ND ND ND ND ND ND <br /> 3/21/2005 ND<5 ;i!ck1.6 ND<0.5 ND<0.5 ND<0.5 ND<0.5 <br /> 6/20/2005 ND<50 i1'.rI:5-amu-; ND<0.5 ND<0.5 ND<0.5 ND<0.5 <br /> 8/30/2005 ND<50 17`:= ND<0.5 ND<0.5 ND<0.5 ND<0.5 , <br /> 12/8/2005 ND<50 :Hd'AA !::'.: ND<0.5 ND<0.5 ND<0.5 ND<0.5 <br /> 2/22/2006 ND<50 14 ::e ND<0.5 ND<0.5 ND<0.5 ND<0.5 <br /> 5/30/2006 ND<50 ND<0.5 ND<0.5 ND<0.5 ND<0.5 <br /> 8/21/2006 ND<50 . fie 1:2-r, <br /> ' ND<0.5 ND<0.5 ND<0.5 ND<0.5 <br /> 11/28/2006 ND<50 'al.2m1, ND<0.5 ND<0.5 ND<0.5 ND<0.5 <br /> 3/6/2007 ND<50 22 Rsa. ND<0.5 ND<0.5 ND<0.5 ND<0.5 <br /> 6/13/2007 ND<50 :a42.5:zap ND<0.5 ND<0.5 ND<0.5 ND<0.5 <br /> 9/19/2007 - <50 2.5 �f <0.5 <0.5 <0.5 <0:5 <br /> 12/11/2007 ND<50 2 2-.-i:. ND 0.5 ND<0.5 NU 0.5 ND<0.5 <br /> 3/13/2008 ND<50 ND<0.5 ND<0.5 ND<0.5 ND<0.5 3.0 <br /> 6/3/2008 ND<50 ND<0.5 ND<0.5 ND<0.5 ND<0.5 ND<0.5 <br /> MW-DIS-13 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 /> 5/16/2003 ND ND 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 /> 2/18/2004 ND ND ND ND ND ND <br /> 6/2/2004 ND ND ND ND ND NO <br /> 9/14/2004 ND ND ND ND ND ND <br /> 12/20/2004 ND ND ND ND ND ND <br /> 3/21/2005 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 /> 12/8/2005 ND<50 ND<0.5 ND<0.5 ND<0.5 ND<0.5 ND<0.5 <br /> 2/22/2006 ND<50 ND<0.5 ND<0.5 ND<0.5 ND<0.5 ND<0.5 <br /> 5/30/2006 ND<50 ND<0.5 ND<0.5 ND<0.5 ND<0.5 ND<0.5 <br /> 8/21/2006 ND<50 ND<0.5 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< 0.99 <br /> 6/3/2008 ND<50 ND<0.5 ND<0.5 ND<0.5 ND<0.50.5 ND<0.5 <br /> t <br /> Page 2 of 4 The Source Group,Inc. I <br /> 1 <br />