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. 10-'September 2404 <br /> AGE-NC Project No 04-1129 <br /> ' Page 4 of 7 <br /> ' contained diesel TPH-d was detected in each of the soil samples collected from beneath <br /> UST-1 and UST-2 and in the stockpile soil sample at concentrations ranging from 1,400 <br /> mg/kg(UST-2) to 28,000 mg/kg (UST-1) None of the other target analytes were detected <br /> in the samples collected Analytical results of soil and grab ground water samples are <br /> ' presented in Tables 1 and 2, respectively <br /> ' February 2003-Monitoring wells MW-1 through MW-3 were installed at the site Ground <br /> water monitoring and sampling were performed at the site TPH-d was detected in soil <br /> samples collected from pilot boring MW-I at concentrations ranging from 42 mg/kg to 130 <br /> ' mg/kg No other analytes of concern were detected at or above laboratory reporting limits in <br /> the other soil samples collected from the site No analytes of concern were detected in ground <br /> water samples collected and analyzed from monitoring wells MW-1 through MW-3 during <br /> ' the monitoring and sampling period <br /> ' 24 SITE HYDROGEOLOGIC CONDITIONS <br /> '. Information regarding site hydrogeologic conditions was obtained from the soil and grab ground <br /> water samples collected from the soil borings advanced at the site and quarterly ground water <br /> monitoring <br /> 2 4 1 Site Geology <br /> ' Generally,moderate to dark yellowish brown,dry to damp,silty clay,clayey silt and silty sand was <br /> encountered from surface grade to 15 feet bsg in borings advanced at the site Moderate yellowish <br /> ' brown to olive gray, damp to saturated, lean clay, silty clay and silt were encountered between 20 <br /> feet and 35 feet bsg Relatively coarser-grained soils, including olive gray to dark olive gray, <br /> saturated clayey silty sand,silt and clayey silt,were encountered at 40 feet bsg Moderate yellowish <br /> brown, damp to moist, clayey sand and poorly graded sand were encountered in borings MW-1, V <br /> MW-3 and PB-20 between 15 and 20 feet bsg, 20 and 25 feet bsg and 25 andA6 feet bsg, <br /> respectively The coarser-grained intervals encountered in borings MW-1,MW-3 and PB-20 appear <br /> ' to be laterally discontinuous Geologic cross sections A-A'and B-B'are provided as Figures 3 and 4 <br /> Boring logs generated from data collected during soil boring and monitoring well pilot boring <br /> advancement are included in Appendix C <br /> u <br /> Advanced GeoEnvironmental,Inc <br />