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I Sparger4) <br />I* Technok:>gylnc <br />III Quality Control <br />Analytical Laboratory Division <br />Mobile Laboratory Dnrnsion <br />Scientfic Division <br />A Proiect S ecifrc QC No project specific QC 0 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 laboratory Control S rke A Laboratory Control Spike (LCS) is a <br />sample which is spiked with 30 ppb BTEX, and analyzed at <br />approximately 10% of the sample load in order to establish method - <br />specific control limits The LCS results associated with your samples <br />are on the attached 8020 Modified LCS BTEX 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 />CAM -17 & 8010 result were hand deliveried on December 30, 1992 <br />'r�+ .�2-�od7 -:AX (096) 362-1'1947 <br />