Laserfiche WebLink
i <br /> A/17er1'rall E11,11-oilmental Netvvork <br /> PAGE 9 <br /> a <br /> a AEN (CALIFORNIA) <br /> # QUALITY CONTROL REPORT <br /> AEN JOB NUMBER: 9703101 <br /> CLIENT PROJECT ID: UNION <br /> i <br /> i <br /> I <br /> Ouality Control Summar <br /> r <br /> All laboratory quality control parameters were found to be within established <br /> limits. <br /> ri . <br /> Definitions <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 /> f 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 OC data are advisory. <br /> t <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 ere 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 /> f D: Surrogates diluted out. <br /> of established laboratory GCC limits. <br /> #: indicates result outside <br /> .j� <br /> F <br />