Laserfiche WebLink
C A M B R I A <br /> HYDROCARBON DISTRIBUTION IN SOIL <br /> No TPHg or benzene was detected in soil samples collected from borings CPT-8 at 20, 110, and <br /> 149 fbg, and CPT-9 at 20 and 50 fbg TPHg was detected in boring CPT-8 at 50 and 87 fbg at <br /> concentrations of 74 and 3 5 ppm,respectively Benzene was detected in boring CPT-8 at 87 fbg <br /> and CPT-9 at 85 and 125 fbg at concentrations of 0 0065, 0 035, and 0 012 ppm, respectively <br /> No fuel oxygenates or lead scavengers were detected in any of the soil samples <br /> The soil analytical data is summarized in Table 2 and the TPHg, benzene, and MTBE results are <br /> presented on Figure 2 The certified analytical reports for these soil samples are presented in <br /> Appendix C <br /> HYDROCARBON DISTRIBUTION IN GROUNDWATER <br /> TPHg was detected in groundwater samples collected from borings CPT-8 at 85, 127, and 144 <br /> fbg and CPT-9 at 85, 108, 121, and 146 fbg at concentrations ranging from 64 to 27,000 ppb <br /> Benzene was detected in groundwater samples collected from borings CPT-8 at 85 fbg and CPT- <br /> 9 at 85, 108, 121, and 146 fbg at concentrations ranging from 14 to 11,000 ppb MTBE was <br /> detected only in a groundwater sample collected from boring CPT-8 at 85 fbg at a concentration <br /> of 0 50 ppb TBA was detected in groundwater samples collected from borings CPT-8 at 85 fbg <br /> and CPT-9 at 108 and 121 fbg at a concentration ranging from 6 4 to 8 2 ppb DIPE was detected <br /> in the groundwater sample collected from boring CPT-9 at 108 fbg at a concentration of 3 8 ppu <br /> 1,2-DCA was detected in groundwater samples collected from borings CPT-8 at 85 fbg and <br /> CPT-9 at 108 fbg at concentrations of 2 2 and 0 55 ppb, respectively No other fuel oxygenates <br /> were detected in the groundwater samples from borings CPT-8 and CPT-9 <br /> The groundwater analytical data is summarized in Table 3 and the TPHg, benzene, and MTBE <br /> results are presented on Figure 2 The certified analytical reports for these groundwater samples <br /> are presented in Appendix C <br /> SITE CONCEPTUAL MODEL <br /> A site conceptual model (SCM) describes the relationship between the source area, transport <br /> pathways, and potential receptors Cambria developed the SCM for the subject site based on <br /> review of all available geological and analytical data Supporting documents for the SCM <br /> include historical soil and groundwater analytical tables, available boring and well logs for the <br /> site, two cross sections, mass estimates, and a list of environmental reports for the subject site <br /> 1399 5 <br />