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L �Mw 'Ili <br /> LBlatt Commercial Brokerage 5 <br /> April 30, 1990 <br /> L202(899-7041 <br /> LTABLE 1 <br /> RESULTS OF SOILS ANALYSES (ppm) <br /> ` DEPTH TOTAL TOTAL LEAD COPPER <br /> BORING SAMPLE feet LEAD COPPER STLC TTLC STLC TTLC <br /> SBA SBA B 6 43 48 5 1000 25 2500 <br /> SBA SBA D 11 24 17 5 1000 25 2500 <br /> SBA SBA E 13.5 22 17 5 1000 25 2500 <br /> L <br /> None of the soil samples analyzed from SBA contained concentrations of lead or <br /> p Y copper <br /> L exceeding their respective State Department of Health Services' established Total Threshold Limit <br /> Concentration (TTLC) to be considered hazardous. Additionally, none of the concentrations detected <br /> exceeded ten times their respective DHS-established Soluble Threshold Limit Concentration(STLC),which <br /> would require a Waste Extraction Test (WET) be performed to determine the leachable amount of copper <br /> and lead in the soil. Copies of the certified analytical results are presented in Appendix III. <br /> GROUNDWATER <br /> The groundwater sample obtained from MWA was processed through a 0.45 micron filter prior <br /> to analysis to filter out any suspended solids in the sample. Table 2 presents the results of copper and <br /> lead analyses performed on the groundwater sample. <br /> L <br /> HE11:10 <br /> GROUNDWATER <br /> TECHNOLOGY,INC. <br /> L <br />