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Spar- ger Analytical Laboratory Division <br /> Mobile Laboratory Division <br /> k4Inc. Scientific Division <br /> OAutomation in Mind <br /> III Qualily Control <br /> A. Project Specifr�QQ. 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 <br /> with your sample at the reporting limit levels noted on the data sheets <br /> in the Analytical Results section. <br /> C. . 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 establish <br /> method-specific control limits. The LCS results associated with your <br /> samples are on the attached Laboratory Control Spike and Laboratory <br /> Control Spike Duplicate Analysis Report. <br /> D. Matrix Spike Rg,Aults. 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 Report. <br /> Accuracy is measured by Percent Recovery as in: <br /> % recovery = (measured concentration) x 100 <br /> (actual concentration) <br /> IV A13Wysis Results <br /> Results are on the attached data sheets. <br /> 3050 Fite Circle, Suite 112 Sacramento, Califomie 95827 • (916) 362-8947 • FAX (996) 362-0947 <br />