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17 April 2008 <br /> AGE-NC-07-1586 <br /> Page 4 of 5 <br /> Organic vapors were not detected in any samples collected using the PID.Furthermore,no petroleum <br /> hydrocarbon-like odors were noted in any of the samples collected. <br /> 4.2. ANALYTICAL RESULTS OF SOIL SAMPLES <br /> Four soil samples, B1-1, B2-1, B3-1 and B4-1, were analyzed for the constituents listed in section <br /> 3.4. CAM 17 metals were reported in soil samples B1-1, B2-1, B3-1 and B4-1. Barium, chromium <br /> and vanadium was reported in each of the samples collected at a maximum concentration of 48 <br /> mg/kg (B 1-1), 16 mg/kg (B 1-1) and 13 mg/kg (B 1-1), respectively. Lead was only reported in the <br /> samples collected from borings B 1-1 and B3-1 at a maximum concentration of 6.1 mg/kg (B 1-1). <br /> Zinc was only reported in the sample collected from boring B 1-1 at a concentration of 2.9 mg/kg. <br /> No other target analytes were reported in the soil samples. The analytical results are summarized in <br /> Tables land 2. A copy of the laboratory report (CTEL Project No. CT214-0803046) is included in <br /> Appendix A. <br /> 5.0. CONCLUSIONS <br /> Based on the data collected from the site, AGE concludes: <br /> • Generally, the soil type encountered in borings B2 through B4 was a dark yellow-orange <br /> brown to dark brown fine poorly graded sand. Approximately 0.25 inch gravels were <br /> encountered in boring B3. <br /> • Low concentrations of the metals barium,chromium,lead,vanadium and zinc were reported <br /> in soil samples collected from borings B 1 through 134;however,the reported concentrations <br /> were within the average concentrations reported for these metals in California soils(Bradford <br /> and others, 1996). <br /> • No other target analytes were reported in the soil samples analyzed. <br /> 6.0. LIMITATIONS <br /> AGE's professional services were performed using that degree of care and skill ordinarily exercised <br /> by environmental consultants practicing in this or similar localities. The findings were based upon <br /> field data and analytical results provided by an independent laboratory. Evaluations of the <br /> geologic/hydrogeologic conditions at the property for the purpose of this investigation were made <br /> from a limited number of available data points and subsurface conditions may vary beyond these data <br /> Advanced GeoEnvironmental,Inc. <br />