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KLEINFELDER <br /> 6.4. ADDITIONAL LIMITED SOIL SAMPLING RESULTS <br /> ' The shallow soil samples collected near the concrete pad and the stepped out perimeter samples <br /> were analyzed for Total Threshold Limit Concentrations (TTLC)-Lead. The TTLC results greater <br /> than 50 mg/kg were also analyzed for Soluble Total Limit Concentrations (STLC). The STLC <br /> analyses are required for results greater than 10-times the STLC regulated value of 5 mg/1 as <br /> ' stated in California Code of Regulations Title 22. A total of thirteen (13) soil samples collected <br /> from the site exceeded the 10-times the STLC value. The following table details the laboratory <br /> results for the 13 soil samples submitted for STLC. The following table details the laboratory <br /> ' analytical results. <br /> Text Table 7 <br /> TTLC Shallow Soil Sample Results <br /> Sample Dat Sample Location/Identificatim TTLC-Lead Concentratim STLC-Lead Concentration <br /> ' m /k m /1 <br /> Concrete padSample Locations <br /> 4/27/04 26268-B1-2' 200 9.4 <br /> 4/27/04 26268-B1-5' ND<10 NA <br /> 4/27/04 26269-B2-2' 140 68 <br /> 4/27/04 26269-B2-5' 120 1.7 <br /> ' 4/27/04 26270-B3-2' 600 10 <br /> 4/27/04 26270-B3-5' ND<10 NA <br /> 4/27/04 26271-B4-2' 24 NA <br /> 4/27/04 26271-B4-5' ND<10 NA <br /> ' 4/27/04 26272-B5-2' 100 NA <br /> 4/27/04 26272-B5-5' 44 1.4 <br /> 4/27/04 26273-136-2' ND<10 NA <br /> 4/27/04 26273-B6-5' 110 2.6 <br /> Perimeter Sam p le Locations <br /> 4/28/04 26274-B7-1' 160 18 <br /> ' 4/28/04 26274-B8-2' 200 2.4 <br /> 4/28/04 26275-B9-1' 130 7.7 <br /> 1 <br /> ' 42162.E01/ST04I1854 Page 17 of 22 <br /> Copyright 2004,Kleinfelder,Inc. July 1,2004 <br />