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� Sparge 0r Analytical Laboratory DMsion <br /> Techno! Y . Mobile Laboratory Division <br /> Scientific Division <br /> With Automation in Mind <br /> { <br /> fll <br /> Quality. Control <br /> A. Proiect 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-ControI 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'Ma.trix Spike is a-sample which is spiked with <br /> k <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 /> IV Analysis Results <br /> Results are on the attached data sheets. <br /> 3050 Fite Circle, Suite 112_+ Sacramento, Colifomia 95827 • (916).362-8947 • FAX(916) 362-0947 � <br />