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Comparison of the soil sample results with the regulatory standards <br /> indicates that the total lead concentrations detected are well <br /> below the Title 22, Total Threshold Limit Concentration (TTLC) of <br /> 1, 000 mg/Kg and the DL concentration of 500 mg/Kg. <br /> Additionally, the evaluation of the toluene concentration found in <br /> sample P-1 indicates that the detected concentration is well below <br /> the DL of 620 mg/Kg. <br /> 5.0 Conclusions and Recommendations <br /> The analytical results taken from the tank removal location at 48 <br /> N. Wilson Way in Stockton, California, indicate that no significant <br /> hydrocarbon residues exist within the soils at the site. There <br /> appears to have been no problems associated with the subject tank. <br /> However, in order to determine the possibility of mobile lead <br /> within the soils, soil sample P-1 will be analyzed for organolead. <br /> If the organic fraction of the lead is below the TTLC value of 13 <br /> mg/Kg, there exists no need for any further investigation and/or <br /> remediation at the site. The organolead analytical results will <br /> be submitted as an addendum to this report. <br />