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Quarterly Monitoring Report, November 1993 <br /> A.Teichert &Sans. 103 North E St. Stockton. CA_ <br /> i <br /> 2.0 RESULTS <br /> 2.1 Groundwater Level Measurements <br /> Measurements on November 24, 1993 from five wells indicate that groundwater <br /> occurs approximately 71 feet below ground surface. Based on the current <br /> information, the hydraulic gradient is approximately 0.0014 ft/ft, and trends east - <br /> northeast. Field measurement forms are included in Appendix B. <br /> 2.2 Groundwater Sample Laboratory Analytical Results <br /> Four groundwater samples collected from the wells were analyzed for TPH as gasoline <br /> and BTEX by EPA Method 8020/8015 modified. The analysis indicates detectable <br /> concentrations of TPH and BTEX in MW-13, and detectable concentrations of benzene <br /> in well MW-1 1 . Groundwater sample laboratory analytical results summarized in Table <br /> 2 are illustrated in Figure 4. Laboratory analytical results reports are included in <br /> Appendix C. <br /> e <br /> i <br /> Page 2 <br />