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OMMARIM M.0 Ik F - No petroleum hydrocarbons were detected in the soil samples collected from vertical Soil Borings SBI, SB2,SB3, and SB5 (Figure 41. Field PID readings of soil samples collected from these four borings also did not detect petroleum hydrocarbons. Gasoline hydrocarbons were detected in the soil'sample from the angle Soil Boring,,ASB6. (Figure 4). PID readings of soil samples collected from ASB6 also indicated that gasoline hydrocarbons remain in the soil near the pump island. Diesel hydrocarbons were detected in the 1o.5 foot soil.sample from Soil Boring SB4,(Figure 4). Field readings of soil samples collected from SB4 detected hydrocarbons at a depth of approximately 10 feet below grade.Laboratory analysis revealed elevated levels of toluene.(0.15 ppm),:ethylbenzene (0.32 ppm), xylenes(1.4 ppm) and TPHD (6800 Ppm) at a depth of 10.5. feet below grade. 'The samples collected at 20.5 and 45.5 feet did not--contain diesel hydrocarbons at or above method detection limits (Table 2). The laboratory reported non-detectable to low levels of BTEX and TPHD in the two composite samples collected from the soil piles (Table 2). 4.0 SLTiV1iV"Y Laboratory results from the tank removal and soil boring investigation indicate up to 50.2 ppm total BTEX and 400 ppm TPHG still remain in the former gasoline tank pit The soil borings; around the excavation determined that the contamination is not laterally exterisivei Low:levels of petroleum'hydrocarbons, polychlorinated biphenols, cadmium,;.chromium, lead and zinc were detected during tank removal and still remain in the`former..waste;oil.tank pit.. TPHD_up to.6,800 ppm and low.levels of,BTEX still remain in place near.,the former,diesel tank. The samples collected from two soil borings indicate the diesel hydrocarbons are localized - - ---and-----does n- ----ot---- extend past 20 feet-below grade. -- -- - —- --- EPR 1205.TJ L