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CAMBRIA in boring SB-18 at a concentration of 3 5 ppb at 72 fbg 1,2-DCA was detected in boring SB-18 at concentrations ranging from 25 to 470 ppb No oxygenates or EDB were detected in groundwater samples from boring SB-18 TPHg was detected to groundwater samples from wells S-1, 5-1-85, S-3, 5-3-84, S-4, and 5-4-83 at concentrations ranging from 51 to 85,000 parts per billion (ppb) Benzene was detected in groundwater samples from wells S-1 and 5-1-85 at concentrations of 2,200 and 24 ppb, respectively D1PE was detected in groundwater samples from wells 5-1-85, 5-3-84, and 54-83 at concentrations of 3 2, 2 1, and 7 2 ppb, respectively Methanol was detected in groundwater samples from wells 5-1-85, and 5-3-84 at concentrations of 5,600 and 4,300 ppb, respectively 1,2-DCA was detected in groundwater samples from wells 5-1-85, 5-3-84, and S4-83 at concentrations of 50,45, and 74 ppb,respectively Grab groundwater sample analytical data from the CPT borings are summarized in Table 3 and presented on Figure 2 The certified analytical reports for the CPT groundwater samples are presented in Appendix F Groundwater chemical analytical data for the site wells are summarized in Blaine's table (Appendix D), presented on Figure 3 and 4, and the oxygenate and . lead scavenger data is presented on Table 4 The certified analytical reports for the groundwater samples from the site wells are presented in Appendix D CONCLUSIONS The purpose of this investigation was to install wells to monitor deeper groundwater zones beneath the site where hydrocarbons had previously been detected, and to further assess the lateral and vertical extent of gasoline constituents to soil and groundwater on the northern, eastern, and southern side of the site Three wells were installed and six soil borings were drilled dunng this phase of investigation Soil analytical data collected during this phase of investigation suggests soil delineation was achieved to the north, east and south TPHg, BTEX, fuel oxygenates, and lead scavengers were not detected to soil samples collected from all six CPT borings This suggests soil delineation has been achieved to the north, across East Fremont Street (bonngs SB-16 and SB-18), along the eastern property line (borings SB-12, SB-13, and SB-14) and along the southern property line (boring SB-15) Borings SB-12, SB-13, and SB-14 delineate the lateral extent of TPHg, BTEX, and fuel . oxygenates (except MTBE) in groundwater along the eastern property line MTBE was detected in SB-12 and SB-14 at concentrations ranging from 15 to 81 ppb Grab groundwater samples 0797 6