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CAMBRIA <br /> Groundwater Flow Direchon Cambria evaluated water-level measurement data from <br /> January 11, 2005 and prepared a groundwater contour map <br /> (Figure 3) Groundwater flow direction is northeasterly this <br /> quarter with an approximate hydraulic gradient of 0 01 <br /> HYDROCARBON DISTRIBUTION IN SOIL <br /> No 1,2-DCA was detected in soil samples collected from borings MW-6 through MW-9 <br /> The soil chemical analytical data are summarized in Table 2 The 1,2-DCA results are presented <br /> on Figure 2 Laboratory analytical data is included in Appendix G <br /> HYDROCARBON DISTRIBUTION IN GROUNDWATER <br /> No TPHg, BTEX, or TBA were detected in groundwater samples collected from borings SB-5 <br /> through SB-9 MTBE was detected in groundwater samples collected from borings SB-6 at 54 <br /> fbg and S13-8 at 52 fbg at concentrations of 0 77 and 3 7 parts per billion (ppb), respectively <br /> • 1,2-DCA was detected in groundwater samples collected from borings SB-6 at 54 fbg, S13-7 at 91 <br /> fbg,and S13-8 at 92 fbg at concentrations of 0 82, 7 4, and 0 75 ppb, respectively <br /> The groundwater chemical analytical data from borings S13-5 through S13-9 are summarized in <br /> Table 3 TPHg, benzene, MTBE, and 1,2-DCA results are presented on Figure 2 Laboratory <br /> analytical data is included in Appendix G <br /> TPHg was detected in a groundwater sample collected from well MW-1 at a concentration of 290 <br /> ppb The laboratory noted that the TPHg concentration reported reflects individual or discrete <br /> unidentified peaks not matching a typical TPHg fuel pattern MTBE was detected in a <br /> groundwater sample collected from well MW-2 at a concentration of 5 3 ppb 1,2-DCA was <br /> detected in groundwater samples collected from well MW-1 at a concentration of 230 ppb, <br /> MW-2 at 4 4 ppb, MW-5 at 2 6 ppb, MW-6 at 50 ppb, and MW-7 at 0 92 ppb No BTEX, or <br /> other oxygenates were detected in groundwater samples collected from wells MW-1 through <br /> MW-9 <br /> CONCLUSIONS <br /> Five soil borings and four monitoring wells were drilled during this investigation to further <br /> . assess the extent of gasoline constituents in soil and groundwater beneath the site The <br /> 1511 5 <br />