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Ameriedii Emdrome)?tal Network <br /> RAGE 7 <br /> i <br /> AEN (CALIFORNIA) <br /> QUALITY CONTROL. REPORT <br /> AEN JOB NUMBER: 9512264 <br /> CLIENT PROJECT IO: 8146 <br /> Quality Control and Pro.iect Sumnary <br /> All laboratory quality control parameters were Bund to be within established <br /> -limits. <br /> 0aiinitionc <br /> Laboratory ContraL Sample (LU)INethad Spike(s): control sampies 4f kneuh eortpositicn_ LCs and Method Spiko <br /> data are used to validate batch analytical rasuttc. <br /> Matrix Spike(s): Aliquot of a sa=le (aqueous or solid) with added quantities of specific compounds and <br /> subjected to the entire analytical procedure. Matrix spike and mstrix spike duplicate 4C data are advisory. <br /> Method Blank: An analytical control cons sting of aLL reagents, internal Standards, and surrogate standards <br /> carried through the entire anaLytical process. Used to monitor Tabora*ory background and reagent contamination. <br /> Not Detected (NO): Not detected at or above the reporting limit, <br /> Relative Percent Difference (RPD): All 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 (MOL). Reporting limits are matrix, m*tilod, and analyte <br /> dependant and Coke into. account any dilutlans performed as part of the analysis. <br /> Surrogates: Organic compounds which are sirdar to analyrea of Interest in ChomiCal behavior, but are not found <br /> in environmental samples. Surragates are added to all blanks, calibration and eheCK standards, samples, and <br /> spiked samples. surrogate recovery is monitored as an indication of accepTabLe sample preparation and <br /> instrumental performance. <br /> D: 5urrogateii diluted out. <br /> i <br /> 9: Tndio&tes result outaldt of tytdblLshcd laboratory 0C limits. <br />