Laserfiche WebLink
IAmerican Environmental Network <br /> PAGE 5 <br />' AEN (CALIFORNIA) <br /> QUALITY CONTROL REPORT <br />' AEN JOB NUMBER 9608024 <br />' CLIENT PROJECT ID - <br />' duality Control and„Project Summary <br />' All laboratory quality control parameters were found to be within established <br /> limits <br /> 1 <br />' Definitions <br /> Laboratory Control Sample (LCS)/Method Spikes) 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 QC data are advisory <br /> Method Blank: 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 /> Not Detected (ND): Not detected at or above the reporting limit <br />' Relative Percent Difference (RPD)- An indication of method precision based on duplicate analysis <br /> Reporting Limit (RL): The lowest concentration routinely determined 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 the 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. <br /> #: indicates result outside of established laboratory QC limits. <br /> I <br />