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CAMBRIA ANALYTICAL RESULTS Tank excavation, dispenser island, product piping, and vent line soil sample analytical results are summarized in Table i and presented on Figure 2 The certified analytical reports are presented in Appendix A A summary of these data is presented below UST Area Initially, nine samples were collected at depths ranging from 14 to 17 fbg in the tank excavation Four of these samples (T6-N-14', T6-S-17', T7-N-17', and T7-S-17') contained elevated petroleum hydrocarbon concentrations These areas were over-excavated and resampled at 19 to 25 fbg No TPHd, benzene, or MTBE were detected in any of these samples TPHg was only detected in sample T7-N-24 5 at a concentration of 15 4 ppm Discolored soil was observed at the bottom of the southeastern portion of the tank excavation near tank sample T6-S This area was over-excavated to an approximate depth of 25 fbg and one soil sample (T6/7-5-20') was collected from the edge of the over- excavation between the diesel UST and the easternmost gasoline UST This sample contained 4 92 ppm TPHg and 52 9 ppm TPHd Benzene and MTBE were not detected iFormer Dispenser Area- Initially, four samples were collected at depths ranging from 3 to 4 fbg beneath the former dispensers These samples (DNE-3 5 , DSE-4 , DNW-3 , and DSW-3') contained TPHg concentrations ranging from <1 00 to 35 7 ppm, TPHd concentrations ranging from 8 65 to 3,850 ppm and MTBE concentrations ranging from <0 100 to 1 26 ppm Benzene was not detected in any of the samples Areas beneath three of the dispensers were over-excavated to approximate depths ranging from 7 to 8 5 fbg These deeper samples did not contain detectable concentrations of TPHg, TPHd or benzene MTBE was only detected in sample DNW-8 5' at a concentration of 0 0158 ppm Lateral over-excavation was performed near the southwestern dispenser island One soil sample (DSW1-3') was collected at the edge of the over-excavation It contained 23 7 ppm TPHd TPHg, benzene, and MTBE were not detected Product Piping- Initially, three samples (PLE1-5', PLE24', and PLW1-3 5 ) were collected below the former product piping alignment These samples contained TPHd at concentrations ranging from <1 00 to 23 3 ppm and benzene concentrations ranging from <0 00500 to 0 0164 ppm TPHs and MTBE ��ere not detected in the sampl« OiiL of thL�,c. areas was over-excavated (PLE2-8 5') and no TPHg, TPHd, benzene, or MTBE were Octected at that depth 241-1399 5