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a <br />' wxrf2s osc�cuauuurts <br /> • 3.2 ANALYTICAL RESULTS <br /> 1 <br /> A summary of the analytical data for the May 1999 groundwater sampling is presented in Table <br />' 3-2 Historical groundwater analytical results are presented in Table A-1 in Appendix A The <br /> analytical reports and Chain of Custody forms are presented in Appendix C. <br />' Petroleum hydrocarbons were detected in samples collected from MW-2, MW-2A, MW-3A, <br /> MW-6, and MW-7 Purgeable petroleum hydrocarbons as gasoline occurred above the detection <br /> limit for the third time in MW-6. No petroleum hydrocarbons were detected in samples <br /> collected at MW-4, MW-5, or MW-9. <br />' Table 3-2 <br /> Organic Analytical Results <br />' San Joaquin County Human Services Agency <br /> 17 through 19 May 1999 <br /> fGroundwater Ethyl- <br /> Elevation Benzene Toluene benzene Total Xylene TPH-G <br />' Well (feet) (Eag/L) (µg/L) (L9/L) (ag/L) (µg/L) <br /> MW-2 NM 8,700 ND (0 5) 2,600 2,700 38,000 <br />' MW-2A -14 73 640 110 550 470 10,000 <br /> MW-2A (dup) -14 73 2,900 150 1,200 1,300 17,000 <br />' MW-3A 1488 ND (0.5) ND (0 5) ND (0 5) ND (0 5) 99 <br /> MW-4 -1508 ND (0.5) ND (0 5) ND (0 5) ND (0 5) ND (50) <br /> MW-5 -1254 ND (0 5) ND (0 5) ND (0 5) ND (0 5) ND (50) <br /> MW-6 -13 39 10 ND (0 5) ND (0 5) ND (O 5) 53 <br /> I MW-7 -15 13 28 ND (0 5) ND (0 5) ND (0 5) 73 <br /> MW-9 -14 80 ND (0.5) ND (0 5) ND (0 5) ND (0 5) ND (50) <br /> Notes ND (0 5) = Analyte not detected, detection ltuvt indicated in parentheses <br /> NM = Not measured <br /> I <br /> I <br /> • <br /> L 1PR0JECY.ISANJ0Q\IISAUaA_99.JUN 7 JLM 1999 <br />