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Clanton <br /> After development of these wells, Clayton collected <br /> water <br /> results of these samples are summarized in Table 2 below. Samples' The analytical <br /> Table 2 <br /> Monitoring Well Water 5ampla Analytical Restau <br /> : L'FR 14lW1 MW� MW 3 'betectlori LBntr?-: <br /> :'riuhad Conultturtta ... ��;: <br /> 50301602 Benzene ND• ND ND <br /> 0.4 <br /> Toluene ND ND ND <br /> s 0.3 <br /> Xylenes ND ND 0.3 <br /> 0.3 <br /> Eihylbenzene ND ND 3.0 <br /> 0.3 <br /> 8015 TPH as ND NA <br /> Gasoline 130 50 <br /> 608 organ chlorine ND ND ND <br /> Pesticides and Variable <br /> PCBs <br /> 4I8.I dii and Grease t <br /> "ND ; Not detected <br /> As Tables 1 and 2 show, contamination was confined to the soil in MW-3. This <br /> monitoring well was ddwngradient from the lova <br /> gasoline tank. tion of the removed underground <br /> Based on the analysis of the soil and water samples from the monitoring wells, <br /> Clayton recommended excavation and aeration of the gasoline-contaminated soil <br /> in the vicinity of the former location of the gasoline tank. <br /> 3.0 <br /> Before soil excavation commenced, Clayton: <br /> • Obtained a soil aeration permit from the Air Pollution Control District <br /> (APCD) in Sacramento on June 8, 1990. <br /> • Submitted a work plan for-excavation.and-aeration of the gasoline-... <br /> _..._.. _..contaminated soil to the San Joaquin County Public Health Services, - -- <br /> Environmental Health Division (PHS/EHD).on June 12, 1990. <br /> • Obtained a permit froth PHS/EHD to remove the 500-gallon septic tank onsite <br /> on August 10, 1990. The PHS/EHD had been assigned oversight of the <br /> assessment and remediation activities at the subject site on July 13, 1990, . <br /> _2_ <br /> i <br />