Laserfiche WebLink
American Environmental Network <br /> PAGE 6 <br /> AEN (CALIFORNIA) <br /> QUALITY CONTROL REPORT <br /> i� <br /> AEN JOB NUMBER: 9607016 <br /> CLIENT PROJECT ID: 115140010010001 <br /> Quality Control and Project Summary <br /> All laboratory quality control parameters were found to be within established <br /> limits. <br /> „ <br /> u <br /> i <br /> 'i <br /> i <br /> II <br /> 'i <br /> 'i <br /> II <br /> • I <br /> Definitions <br /> !I <br /> Laboratory Control Sample (LCS)/Method Spike(s): Control samples of known composition. LCS and Method Spike <br /> data are used:'to validate batch analytical results. ; <br /> Matrix Spike(s): Aliquot of a sample (aqueous or solid) with added quantities of specific compounds and <br /> subjected to the entire analytical procedure. Matrix spike and matrix spike duplicate GC data are advisory. <br /> Method Blank: u An analytical control consisting of all reagents, internal standards, and surrogate standards <br /> carried through the entire analytical process. Used to monitor laboratory background and,reagent contamination. <br /> il <br /> Not Detected (ND): Not detected at or above the reporting limit. <br /> 1 <br /> Relative Percent Difference (RPD): An indication of method precision based on duplicate analysis. <br /> Reporting Limit (RL): The lowest concentration routinely determinetl during laboratory operations. The RL is <br /> generally 1 to 10 times the Method Detection Limit (MDL). Reporting limits are matrix, method, and analyte <br /> dependent and,take into account any dilutions performed as part of ithe analysis. <br /> Surrogates: Organic compounds which are similar to analytes of interest in chemical behavior, but are not found <br /> in environmental samples. Surrogates are added to all blanks, calibration and check standards, samples, and <br /> spiked samples. Surrogate recovery is monitored as an indication of acceptable sample preparation and <br /> instrumental performance. <br /> D: Surrogates diluted out. 1 <br /> 'i <br /> #: Indicateslresult outside of established laboratory GC limits. ',i <br /> 'i <br /> ii <br /> f <br />