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Sparger 0 Analytical Laboratory Division <br /> Technol Mobile Laboratory Division <br /> gyo Inc. Scientific Division <br /> With Automation in Mind <br /> L <br /> III Quality Control <br />{ � A. Project Specific QC. No project specific QC (i.e., spikes and/or <br /> duplicates) was requested. <br /> Lf <br /> B. Method Blank Results. A method blank is a laboratory-generated <br /> sample which assesses the degree-to which laboratory operations and <br /> procedures cause false-positive analytical results for your sample. <br />{ L. No target parameters were detected in the method blank associated with <br /> your sample at the reporting limit levels noted on the data sheets in the <br /> Analytical Results section. <br /> i <br /> j C. Laboratory Control Spike. A Laboratory Control Spike (LCS) is a <br /> sample which is spiked with known analyte concentrations, and analyzed <br /> i at approximately 10% of the sample load in order to establish method- <br /> specific control limits. The LCS results associated with your samples are <br /> on the attached Laboratory Control Spike and Laboratory Control Spike <br /> Duplicate Analysis Report. <br /> D. Matrix Spike Results. A Matrix Spike is a sample which is spiked with <br /> 4 known analyte concentrations, and analyzed at approximately 10% of the <br /> L sample load in order to establish method-specific control limits. The <br /> Matrix Spike results associated withyouur samples are on the attached <br /> -Matrix Spike and Matrix Spike Duplicate Analysis Report. <br /> Accuracy is measured by Percent Recovery as in: <br /> % recovery = (measured concentration) x 100 <br /> (actual concentration) <br /> 4 L <br /> t <br /> fifi IV Analysis Results <br /> , L <br /> Results are on the attached data sheets. <br /> L <br /> r 3050 Fite Circle, Suite 112, Sacramento, California 95827 (916) 362-8947 • FAX(916) 362-0947 <br /> L <br />