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3.2 ANALYTT AL RESULTS <br /> A summaryof the analytical data for the September 1998 groundwater sampling �s resented in <br /> Y P g P g P <br /> 1 Table 3-2 Historical groundwater analytical results are presented in Table A-1 in Appendix A <br /> The analytical reports and Chain of Custody forms are presented in Appendix C <br />' Petroleum hydrocarbons were only detected in samples collected from MW-2A. No petroleum <br /> hydrocarbons were detected in MW-9. The MW-2A sample had decreased concentrations of <br /> dissolved petroleum hydrocarbons from the June 1998 sampling event; benzene (810 Ag/L), <br /> toluene (81 ug/L), ethylbenzene (710 µg/L), total xylene (61 µg/L), and TPH-G (6,000 µg/L) <br />' were detected <br /> Table 3-2 <br /> Organic Analytical Results <br /> San Joaquin County Human Services Agency <br /> 17 March 1998 <br /> 1 <br /> Groundwater Ethyl- <br /> Elevation Benzene Toluene benzene Total Xylene TPH-G <br /> Well (feet) (Ag/1-) WIL) WIL) WIL) (AgIL) <br /> EMWW-_29A -16 39 810 81 710 61 6,000 <br /> -16 48 ND (0 5) 1 ND (0 5) ND (0 5) ND (50) ND (50) <br /> Notes ND (0 5) = Analyte not detected, detection linut indicated in parentheses <br /> 1 <br /> 1 <br /> L TROIECTSZAN1001RSAUiSA_98 OCT 7 Octobcr 1� <br />