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%..r <br /> .J <br /> TABLE 2 <br /> ANALYTICAL RESULTS OF EXCAVATION SAMPLES <br /> CALDRON'S GENERAL STORE <br /> November 30 - December 1, 1993 <br /> mg/kg <br /> Sample TPH as Ethyl- <br /> ID Gasoline Benzene Toluene benzene Xylene <br /> S-1 ND ND ND ND ND <br /> .J <br /> E-1 ND ND ND ND ND <br /> W-1 ND ND ND ND ND <br /> N-1 ND ND ND ND ND <br /> N-2 ND ND ND ND ND <br /> TP/11-30-93* 5,100 0.47 2.2 88 390 <br /> mS&S - pans per million(ppm) <br /> ND - None Detected <br /> •Water Sample-Results inµ8/L- parts per billion(ppb) <br /> However, petroleum hydrocarbons were detected in samples from stockpiles SP-1 and SP-2 <br /> just above the method detection limits (MDL) during the first three confirmatory samplings. <br /> No petroleum hydrocarbons were detected in either stockpile during the fourth confirmatory <br /> sampling. The analytical results of the stockpile samples are summarized on Table 3. The <br /> laboratory reports and chains-of-custody are included in Appendix B. <br /> 4.3 Stratigraphy and Field Observations <br /> Moist to wet clay with silt was encountered from the surface to the bottom of borings MW-2 <br /> and MW-3 (20 feet). Silty sand was encountered at approximately 19 feet in boring MW-1. <br /> Water was encountered at a depth of approximately 6 to 7 feet in each boring. <br /> Odors of longer-chained hydrocarbons were noted at a depth of 5 feet in boring MW-1. <br /> Organic vapors were detected at a concentration of 40 ppmv in this sample. No other <br /> hydrocarbon odors or organic vapors were detected in any of the borings The boring logs <br /> are included in Appendix C. <br /> 4.4 Analytical Results of Soil Samples <br /> .J <br /> A total of 6 soil samples collected during the installation of the monitoring wells were <br /> analyzed for TPH as gasoline and BTE&X. One sample was also analyzed for TPH multi- <br /> range (gasoline, diesel and motor oil). TPH as gasoline was detected in sample MW1-5 at <br /> a concentration of 72 ppm. TPH as gasoline, diesel and motor oil were detected in sample <br /> x..68-1,,.&s.M..c I- 11 <br /> xu�anxs,.drvrn-� <br />