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Page 9 <br /> Cabral-McAdams Property <br /> October 16,2006 <br /> Job No. 1828-092.02 <br /> LABORATORY RESULTS <br /> Orchard Areas <br /> Surface soil samples collected within the orchard areas (locations Sl through S8) were <br /> laboratory tested separately for lead and arsenic, and laboratory combined into four two- <br /> part composite samples for analysis for organochlorinated pesticides. Concentrations of <br /> lead measured in the soil samples collected from these locations ranged from 30 <br /> milligrams per kilogram (mg/kg) to 75 mg/kg; arsenic concentrations measured in these <br /> samples ranged from 3.8 mg/kg to 9.0 mg/kg. <br /> Organochlorinated pesticides were not detected in any of the composite soil samples <br /> above laboratory reporting limits with the exception of 4,4'-DDE and 4,4'-DDT which <br /> were detected at very low concentrations in each composite sample. Concentrations of <br /> 4,4'-DDE ranged from 0.087 mg/kg to 0.25 mg/kg, and concentrations of 4,4'DDT <br /> ranged from 0.0088 mg/kg to 0.021 mg/kg. Laboratory analysis of the four deep soil <br /> samples collected at locations S44 through S47 did not reveal concentrations of <br /> organochlorinated pesticides or DCBP above laboratory reporting concentrations. <br /> One duplicate sample was collected at location S45 (Sample Number S45-10'B) and <br /> analyzed to evaluate laboratory quality control for organochlorinated pesticides and <br /> DCBP. Our review of the analytical data for the duplicate sample indicate reasonable <br /> conformance of laboratory protocol and quality control. <br /> Area A <br /> Surface soil samples collected at locations S9 through S12, S24 through S28, and S43, as <br /> well as the one-foot-deep soil samples collected from locations S9 and S10 were <br /> analyzed for lead and arsenic. Concentrations of lead detected in the soil samples <br /> collected from these locations ranged from 6.4 mg/kg to 110 mg/kg. Arsenic <br /> concentrations in these samples ranged from less than 2.0 mg/kg to 9.8 mg/kg, except for <br /> the surface sample collected at location S 10,which contained 12 mg/kg. <br /> Surface soil samples collected at S9 through S12 were laboratory-combined into two, <br /> two-part composite samples for analysis for organochlorinated pesticides. Surface soil <br /> samples from locations S24 through S28 and S43, as well as the soils collected at a depth <br /> of one foot at locations S9 and S 10 also were analyzed for organochlorinated pesticides. <br /> In general, concentrations of organochlorinated pesticides were not detected in any of the <br /> composite surface soil samples at concentrations above laboratory reporting limits, with <br /> the exception of 4,4'-DDE, 4,4'-DDD, 4,4'-DDT, and chlordane which were detected at <br /> very low concentrations (well below established regulatory agency screening levels). <br /> Dieldrin was detected in the composite soil sample from locations S9 and S10 at a <br /> concentration of 0.110 mg/kg, and from the sample collected from location S27 at a <br /> concentration of 0.031 mg/kg. <br />