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G+evndwet•r YonRof&V Report <br /> 707 Fast Yosemte Ave Manteca Calftmu <br /> • Groundwater Sampling and Analysis <br /> On October 11 , 1993, the wells were purged and groundwater samples collected <br /> according to the Aegis SOP The samples were submitted under chain-of-custody to <br /> Excelchem Environmental Labs of North Highlands, California, a state-certified analytical <br /> laboratory All samples were analyzed for concentrations of <br /> • TPH as gasoline and diesel, by EPA Method 8015, <br /> • BTEX by EPA Method 60218020, <br /> • Total lead <br /> The groundwater sample analytical results are summarized in Table 3 No petroleum <br /> hydrocarbons were detected in the groundwater samples Lead concentration were below <br /> the detection limit in all three wells Figure 3 is a distribution map of TPH, as gasoline, <br /> diesel and benzene in groundwater based on the analytical results The laboratory report <br /> and chain-of-custody form are included in Appendix B <br /> • <br /> • <br /> 93-042A QMR 3 <br /> f <br />