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0 <br />Spargero <br />TechnologyInc. <br />With Automation in Mind <br />II Quality Control <br />,76. - <br />Analytical Laboratory Division <br />Mobile Laboratory Division <br />Scientific Division <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 and <br />procedures cause false -positive analytical results for your sample. <br />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 />C. Laboratory Control Spike. A Laboratory Control Spike (LCS) is a <br />sample which is spiked with known analyte concentrations, and analyzed <br />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 />known analyte concentrations, and analyzed at approximately 10% of the <br />sample load in order to establish method -specific control limits. The <br />Matrix Spike results associated with your 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 />III Analysis Results <br />Results are on the attached data sheets. <br />3050 Fite Circle, Suite 112 9 Sacramento, California 95827 9 (916) 362-8947 9 FAX (916) 362-0947 <br />