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:$—�� <br /> CLEARWATER <br /> G R O U P I Iii C <br /> Environmental Serorcec <br /> Soil sample analytical results are summarized in Table 1 and shown on Figure 3 The certified <br /> laboratory analytical report is presented with the chain of custody in Appendix D <br /> 3.3 Groundwater Gauging <br /> On September 29, 1997, depth to groundwater was gauged at 1189 feet below top of casing <br /> in monitoring well MW-1, at 1166 feet in MW-2, and at 1196 feet in MW-3 These results <br /> suggest a shallow (c0 01%) groundwater gradient in a generally southeast direction Gauging <br /> data is presented in Table 2 and on Figure 4 <br /> 3.4 Groundwater Sample Analytical Results <br /> TPHg and benzene were detected in concentrations exceeding method reporting limits in water <br /> samples collected from all three monitoring wells MW-1, -2, and -3 on September 29, 1997 <br /> Concentrations of analytes were consistently higher in the sample collected from MW-1, <br /> which is assessed as downgradient of the UST pit Concentrations of TPHg, TPHd, and <br /> benzene in MW-1 were 32 milligrams per liter (mg/L), 0 3 mg/L, and 2,200 micrograms per <br /> liter (µg/Q, respectively Very low concentrations of TPHg (0 05 mg/L) and benzene (1 2 <br /> gg/L) were reported in the assessed upgradient well (MW-2) Low concentrations of TPHg <br /> (1 8 mg/L) and benzene (38 µg/L) were reported in the cross-gradient well (MW-3) <br /> Dissolved hydrocarbon concentrations are summarized in Table 2 and are shown on Figure 5 <br /> The certified laboratory analytical report is presented with the chain of custody in Appendix D <br /> • <br /> 5 <br />