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Chain-of-custody documentation and the certified analytical report are provided in Appendix C. <br /> <br />3.7 Investigation-Derived Wastes <br />No investigation-derived wastes were generated during the investigation. <br />4.0 FINDINGS <br /> <br />4.1 Subsurface Conditions <br />The results from the drilling program show that the subject property is primarily underlain by <br />fine-grained alluvial soils consisting of silty clays. However, in Borings B9 through B11, gravelly <br />sands and sands were encountered at the 4.5-foot depth. In Boring B12, a thin layer of sandy <br />gravel was encountered just below the asphalt pavement surface. No groundwater was <br />encountered during drilling activities. No visual or olfactory evidence (i.e., soil discoloration, <br />odor) of potentially-impacted soils was observed in soils that were recovered during drilling <br />activities. <br /> <br />4.2 Soil Sample Analytical Results <br />The following information is a summary of the soil sample analytical test results (Appendix C). <br />This information has also been included in Table 1. <br />Dieldrin was detected in Borings B7 through B11 at concentrations between 0.00041 and <br />0.0039 milligrams per kilogram (mg/kg). <br />Dichlorodiphenyldichloroethane (DDD) was detected in Borings B7 through B10 at <br />concentrations between 0.00017 and 0.010 mg/kg. <br />Dichlorodiphenyldichloroethene (DDE) was detected in Borings B7 through B11 at <br />concentrations between 0.00073 and 0.31 mg/kg. <br />Dichlorodiphenyltrichloroethane (DDT) was detected in Borings B7 through B10 at <br />concentrations between 0.0012 and0.046 mg/kg. <br />TPH-d was detected in Borings B1 and B6 at concentrations of 1.4 and 2.1 mg/kg, <br />respectively. <br />Arsenic was detected in Borings B2, B3, and B7 through B11 at concentrations between <br />5.8 and 8.2 mg/kg. <br />Chromium was detected in Borings B2, B3, and B7 through B11 at concentrations <br />between 36 and 58 mg/kg. <br />Lead was detected in Borings B2, B3, and B7 through B11 at concentrations between <br />7.5 and 11 mg/kg. <br />No other OCPs, VOCs, TPH-d, or TPH-mo were detected in soils at concentrations at or above <br />laboratory detection limits <br /> <br />5.0 SUMMARY AND CONCLUSIONS <br />AEI has completed a Phase II at the subject property. The purpose of the subsurface <br />investigation was to assess whether onsite storage and/or use(s) of waste oil and pesticides <br />have adversely affected the subsurface at the subject property. Twelve (12) soil borings were <br />Project No. 353448 <br />February 25, 2016 <br />Page 5 AEI <br />Consultants