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N ..i <br /> F1ixeco <br /> I Sample Description <br /> Lab ID Client ID Matrix Date Sampled Containers <br /> 31069-001 SB @ 16-17 Som- 26-Aug-87 8-0z. Jar <br /> -002 SB @ 8-13 Soil 26-Aug-87 8-Oz. Jar <br /> The samples were received under chain-of-custody. <br /> II Analysis Request <br /> The following analytical tests were requested. <br /> Lab ID Analysis Description <br /> 31069-1 thru 2 Volatiles, and Semivolatiles <br /> III Quality Control_ <br /> A. Project Specific QC. No project specific QC (i .e. , spikes and/or <br /> duplicates) was requested. <br /> B. Method Blank Results. A method blank is a laboratory-generated <br /> sample which assesses the degree to which laboratory operations <br /> and procedures cause false-positive analytical results for your <br /> samples. <br /> No target parameters were detected in the method blanks associated <br /> with your samples at the reporting limit levels noted on the data <br /> sheets in the Analytical Results section. <br /> C. Laboratory Control Samples. An LCS is a well-characterized matrix <br /> blank water, sand or celite) which is spiked with certain target <br /> parameters and analyzed at approximately 10% of the sample load in <br /> order to establish method-specific control limits. The LCS <br /> results associated with your samples follow: <br /> Test: 8240 LCS <br /> LCS ID: 624M210887A <br /> Concentration Units: ug/kg <br /> Concentration Accuracy Precision <br /> Measured % Recovery RPD <br /> Parameter Spike LCS1 LCS2 LCS1 LCS2 Av. Limits LCS Limit <br /> 1,1-dichloroethene 50 37.0 37.2 74.0 74.4 74.2 59-172 0.5 22 <br /> trichloroethene 50 42.8 42.0 85.6 84.0 84.8 62-137 1.9 24 <br /> benzene 50 44.2 42.7 88.4 85.4 86.9 66-142 3.5 21 <br /> toluene 50 42.0 43.1 84.0 86.2 85.1 59-139 2.6 21 <br /> chlorobenzene 50 46.3 45.9 92.6 91.8 92.2 60-133 0.9 21 <br />