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1 <br /> Spargero Analytical Laboratory Division <br /> Technob <br /> Mobile Laboratory Dnnsion <br /> gy Inc Scientfic Division <br /> With Automation rn Mine <br /> 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 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 * Sacramento Colifom,a 95827 • (996) 362-8947 • FAX(996) 362-0947 <br />