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%Enseco <br /> A Corning Company <br /> I Sample Description <br /> See the attached Sample Description Information. <br /> The samples were received under chain-of-custody. <br /> II Analysis Reauest <br /> The following analytical tests were requested. <br /> Lab ID Analysis Description <br /> 060170-1 thru 5 Volatile Organics <br /> Total Petroleum Hydrocarbons (Gasoline) <br /> -3 thru 5 Total Petroleum Hydrocarbons (Triregional) <br /> -1 thru 5 Lead <br /> III Ouality Control <br /> A. Project Specific OC. 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 <br /> Method Blank Report. <br /> Repetitions of method blanks (with identical QC Lot No.s and Run <br /> No.$) have been reported but do not indicate unique <br /> determinations. <br /> C. Laboratory Control Samples - The LCS Program <br /> Duplicate Control Samples. A DCS 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 DCS <br /> results associated with your samples are on the attached Duplicate <br /> Control Sample Report. <br />