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[J <br /> The soil samples were submitted to Severn Trent Laboratory, Inc. (STL), a State-certified <br /> laboratory, for chemical analysis. Each soil sample was analyzed for moisture content, pH, <br /> CAM-17 total metals concentrations analysis by EPA Method 6020 and 7471A, and <br /> leaching concentrations of lead using the soluble threshold limit concentration (STLC) and <br /> the toxicity characteristic leaching procedure (TCLP). Attachment I provides a summary <br /> Of the analytical methods, results, and screening criteria concentrations. <br /> CAIM-17 Total Metals Results <br /> Analytical results did not exceed the total threshold limit concentration (TTLC) screening <br /> criteria for the nine soil samples collected. <br /> STLC Results <br /> The STLC analytical results indicate concentrations in three soil samples (AA-00, AA-10, <br /> and BB-00) exceed the lead STLC screening criteria (5 mg/l) for Class I non-Resource <br /> Conservation and Recovery Act (RCRA) hazardous waste. The concentrations of each of <br /> the three samples are provided below: <br /> • Sample AA-00 contains lead at 22.6 mg/1 <br /> • Sample AA-10 contains lead at 47.4 mg/l <br /> • Sample BB-00 contains lead at 55.1 mg/I <br /> TCLP Results <br /> Analytical results did not exceed the TCLP screening criteria for the nine soil samples <br /> collected. <br /> Summary <br /> Based on these results, a California-permitted Class I landfill facility should be contacted <br /> regarding acceptance of the soil in the vicinity of samples AA-00, AA-10, and BB-00 for <br /> disposal as Class I non-RCRA hazardous waste. The remaining soil analytical results that <br /> did not exceed Class I hazardous waste criteria can be provided to a Class = landfill for <br /> their consideration. <br /> 2 <br />