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Swigero <br /> Analytical Laboratory Dlvlsio <br /> TechrxAo�, Mobile Laboratory Divislob <br /> �- Scientific Division <br /> Environmental Laboratories <br /> II Qmality 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 operation and <br /> procedures cause false-positive analytical results for your sample <br /> No target parameters were detected in the method blank associated <br /> with your sample at the reporting limit levels noted on the data sheets <br /> in the 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 <br /> analyzed at approximately 10% of the sample load in order to <br /> establish method specific control limits. The LCS results associated <br /> with your samples are on the attached Laboratory Control Spike and <br /> Laboratory Control Spike Duplicate Analysis Resport <br /> D. Matrix Spike Results. A Matrix Spike is a sample which is spiked <br /> with known analyte concentrations, and analyzed at approximately <br /> 10% of the sample load in order to establish method-specific control <br /> limits The Matrix Spike results associated with your samples are on <br /> the attached Matrix Spike and Matrix Spike Duplicate Analysis <br /> Report <br /> Accuracy is measured by Percent Recovery as in <br /> % recovery = (measured concentration) x 100 <br /> (actual concentration) e <br /> III Analysis Results <br /> Results are on the attached data sheets <br /> 3050 Fite Circle, Suite 172 • Sacramento California 95827 • (916) 362-8947 • FAX (916) 362-0947 <br />