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VIRZI DOC!, _ Soil Analytical Results Preserved soil samples were collected at 5-foot depth intervals during the drillipa of I samples were sub-�-aitted to a certified laboratory Wells U-1,U-2, and U-3. Selected soi and analyzed for total petroleum hydrocarbons calculated as gasoline (TPH gasoline), total semi- and non-volatile hydrocarbon c ted diesel (TPH dosing DHS F esel), and benzene, toluene, etbylbenzene, and tot xylenescompounds) LUFI'Method. The samples submitted from U-2 were also analyzed for halogenated volatile organics by EPA Method$010. The sampling and analytical procedures t employed are described in Appendix A of this report, and a summary of soil analytical results is presented in Table 2. The sample from Boring U-1 at the 5 to 6-1/2 footdepth was found to contain 1sg�ppm TPH gasoline and 710 ppm TPH diesel.;This sample also contained 2.7 ppm:, pp lenes: At the 10 to 11-1/2 foot de th in benzene,52 ppm etllylbenzene,-and 66 m xy P Boringi3-1, only 3.2 ppm TPH diesel was reported: All other parameters were below detection limits. The S to 6=1 2 foot :sample from Boring U-2 contained 1,200 ppm:TPH gasoline, 5 P nidiesel;`16 ppm ethylbenzene, and 74 ppm xylenes. Benzene and toluene were PP :... : . .� not detected in U-2 at 2 10 to 11-1/2 foot sample the 5 to 6-1/2 foot sample. The U- contained no detectable concentrations of TPH gasoline, TPH diesel, or BTEX 5 to 6-1/2 and 10 to it-1/2 foot depths from U-2 compounds. Soil F,mples from the were also analyzed for halogenated volatile organics (EPA Method 8010). None of these analytes were detected in either of the soil samples from U-2. The soil samples collected at the 5 to 6-1/2 and 10 to 11-1/2 foot depths in U-3 were found to contain 5.2 ppm TPH diesel in the 10 to 11-1/2 foot sample. All other r; analytes were below detection limits in both samples. Groundwater Analytical Results %:Groundwater.samples were collected from Monitoring We11s U-1 through U-3, and fLom ibe+.,ite water upply well (WSW-1) during the;November 11, 1990, sampling event: These samples were analyzed for TPH gasoline,TPH diesel,BTEX compounds, and halogenated volatile organics (EPA 624) by a State-certified analytical laboratory. in this discussion represent the results of the The g'1'EX concentrations presented . . EPA 624 analysis, which are higher than the concentrations reported in the EPA Method 8020 analysis. '.The:results.of these analyses are summarized in Table 3. Groundwater from Zl-1 contained 140 parts per billion (ppb) TPH gasoline, 19 ppb benzene,and 3 ppb total xylenes. Diesel, toluene, and eth lbenzene were not detected Y in the U-1 water sample.–T'he:U=2 water sample contained TPH:gasoline,_benzene,-an _. __ __—__— 5 February 13,1991 31001()1/REPORT z