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Project No 034-98081 <br /> Page No 4 <br /> 51 Soil Profile and Feld Observations <br /> A review of well construction logs in Appendix C suggests the soil profile beneath the subject site may <br /> be generalized as follows <br /> 0 to 25 feet bgs Interbedded layers of sandy SILT (ML), clayey SILT <br /> and silty CLAY (CUCH) <br /> 25 to 47 feet bgs Silty CLAY (CL) and clayey SILT (ML) <br /> 47 to 50 feet bgs Interbedded layers of silty CLAY (CL), silty SAND <br /> (SM), and sandy SILT (ML) <br /> 52 Chemical Analysts -Soil <br /> During the advancement of the monitoring well borings, soil samples were collected for logging <br /> purposes at five foot intervals, beginning at five feet below grade Selected soil samples, collected from <br /> the capillary fringe, were submitted for chemical analysis for BTEX/TPH-G by EPA Method <br /> 802113/8015 Analytical results are summarized in Table I (Appendix A) Copies of the Certified <br /> Analytical Results and Chain-of-Custody Record are provided in Appendix C <br /> Review of the analytical results in Table I reveals that gasoline constituents were not detected in the soil <br /> samples collected from monitoring well borings <br /> 53 Groundwater Elevation and Gradient <br /> The three groundwater monitoring wells installed at the subject site were sounded by Krazan on October <br /> 2, 1998 Refer to Appendix D for copies of the groundwater sampling logs and to Appendix E for <br /> construction specifications of the monitoring wells and well head elevation and coordinant survey data <br /> The depth to groundwater in the subject site vicinity was approximately 30 feet below grade <br /> Groundwater flow direction was toward the northeast (north 11° east) at a gradient of 0 006 feet per feet <br /> (32 feet/mile) Water level data are summarized in Table II and groundwater parameters are summarized <br /> in Table III A groundwater contour elevation map is presented in Figure 3 <br /> 54 Chemical Analysis - Groundwater <br /> Groundwater samples were collected from the three monitoring wells on October 2, 1998 The <br /> groundwater samples were chemically analyzed for benzene, toluene, ethylbenzene, and xylenes (BTEX) <br /> and for total petroleum hydiocarbons as gasoline (TPH-G) by EPA Methods 80218 and 8015, <br /> KRAZAN &ASSOCIATES, INC <br /> Offtces Serving, the Western United States > <br /> 3498083 s52 <br />