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T <br /> Groundwater Analytical ults(EPA Method 8010) • <br /> Former Unocal Service Station#0123 <br /> 1034 Central Avenue <br /> Tracy,California <br /> EXPLANATIONS <br /> Laboratory analytical results prior to March 24, 1998,were compiled from reports prepared by MPDS Services,Inc <br /> Cis-1,2-DCE = Cis-1,2-Dichloroethene <br /> Trans-1,2-DCE = Trans-1,2-Dichloroethene <br /> (ppb)=Parts per billion <br /> ND=Not Detected <br /> I Chloroform was detected at a concentration of 0 77 ppb <br /> z 1,1,1-Tnchloroethane was detected at a concentration of 0 86 ppb <br /> 7 l,I-Dichloroethane(1 I-DCA)was detected ata concentration of 064 ppb <br /> ° Methylene chloride was detected at a concentration of 10 ppb <br /> i Methylene chloride was detected at a concentration of 15 ppb <br /> i <br /> 6 1,1-DCA was detected at a concentration of 0 80 ppb <br /> 1,1-DCA was detected at a concentration of 0 82 ppb <br /> B I,1-DCA was detected at a concentration of 0 52 ppb <br /> 9 Chloroform was detected at a concentration of 0 52 ppb <br /> 10 1,1-DCA was detected at a concentration of 0 57 ppb <br /> 11 <br /> Methylene chloride was detected at a concentration of 5 6 ppb <br /> iZ Methylene chloride was detected at a concentration of 6 7 ppb <br /> 1 <br /> 3 Methylene chloride was detected at a concentration of 8 3 ppb <br /> 14 Methylene chloride was detected at a concentration of 6 1 ppb <br /> Is Methylene chloride was detected at a concentration of 7 7 ppb <br /> 16 Methylene chloride was detected at a concentration of 7 9 ppb <br /> 17 Chloroform was detected at 0 557 ppb <br /> Note All EPA Method 8010 constituents were ND,except as reported above <br /> ANALY'T'ICAL METHOD <br /> EPA Method 8010 for Halogenated Volatile Organic Compounds(HVOCs) <br /> I <br /> 0123 xlsl#280047 14 As of 03121/01 <br />