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the soil of MW-1 did not persist below the static water level of 31 60 feet bgs 4.3 Laboratory Analyses of Soil Samples The results of the laboratory analyses on twelve soil samples are presented in Table 1, below, in graphical form in Figures 4-6, and as complete laboratory data on the laboratory data sheets in Appendix B No reported concentrations of total petroleum hydrocarbons, quantified as gasoline (TPH-g), were found in any of the twelve soil samples Similarly, no reported concentrations of motor oils, MTBE or benzene were present in the three (3) soil borings TPH-Diesel was reported in moderate concentrations in B-5 and MW-1 at or above the static water level MW-i is in the area formerly occupied by the diesel USTs, and B-5 is northeast of MW-1, in reasonable proximity to the former diesel USTs Thus, the diesel USTs appear to be the source of diesel contamination in the soil at these locations Table 1. Soil Sample Results Sample ID TPH- i TPH-i Motor MTBE' Benzene' Toluene' Ethyl Total z Gasoline Diesel Oils Benzene Xylenes B-5-30 ND 450 ND ND ND ND ND ND B-5-35 ND 80 ND ND ND ND ND ND B-5-45 ND ND ND ND ND ND ND ND B-5-50 ND ND ND ND ND ND ND ND MW-1-20 ND 2300 ND ND ND ND 0.26 033 MW-1-30 ND 2230 ND ND ND ND 0.11 0.175 MW-1-35 ND ND ND ND ND ND ND ND MW-1-50 ND ND ND ND ND ND ND ND MW-3-15 ND ND ND ND ND ND ND ND MW-3-30 ND ND ND ND ND ND ND ND MW-3-35 ND ND ND ND ND 0 007 ND 0.0076 MW-3-50 ND ND ND ND ND ND ND ND Notes Results are given in ppm 'Detection limits for analyses on this sample were i ppm zDetection linuts for analyses on this sample were 0 005 ppm ND=Not detected at or above the indicated laboratory detection limit While, not complete as part of the current investigation, the following table from the Environeering,tnc, proJect No 99-092.02 8