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ALiZ Laboratories, Inc. <br />2773 Oownhr7f Odve Steamboat SpAnos. CO 80487 (800133 <br />Batch A distinIX set of samples analyzed at a specifc 8me <br />Fouts Value of the QC Type of interest <br />Limit Upper limit for RPD, in %. <br />Lower Lower Recovery Limit, in % (except for LCSS, mgMg) <br />MDL Method Detection Limit. Same as Minimum Reponing Limit. Allows for ins[mment and annual fluctuations. <br />PCN/SCN A number assigned to reagents/slandards to trace to the manufacturer's cedificate of analysis <br />POL P2ctical Quantitation Limit, typirally S limes the MDL. <br />OC True Value of the Control Sample or the amount added to the Spike <br />Rec Amount of the true value or spike addetl recovered, in % {except for LCSS, mglFCg) <br />RPD Relative Percent Difference, calculation used (or Duplicate QC Types <br />Upper Upper Recovery Limit, in % (except for LCSS, mgMg) <br />Sample Value of the Sample of interest <br />AS Analytical Spike (Post Digestion) LCSWD <br />ASD AnalyUWl Spike (Post Digestion) Duplicate LFB <br />CCB Continuing Calibation Blank LFM <br />CCV Continuing Calivaaon Verfcetion standaM LFMD <br />DUP Sample Duplicate LRB <br />ICB Initial Calibration Blank MS <br />ICV Initial Calibration Verification standard MSD <br />ICSAB Inter-element Cortedion Standard - A plus B solutions PBS <br />LCSS Laboratory Control Sample -Soil PB W <br />LCSSD Laboratory Control Sample -Sal Duplicate POV <br />LCSW Laboratory Contrd Sample -Water SDL <br />Laboratory Control Sample -Water Duplicate <br />Laboratory Fodified Blank <br />Laboratory Fortified Matrix <br />Laboratory Forlified Matrix Duplicate <br />Laboratory Reagent Blank <br />Matrix Spike <br />Matrix Spike Duplicate <br />Prep Blank -Sal <br />Prep Blank -Water <br />Practical Quantifation Verifica8on standard <br />Serial Dilution <br />Blanks Verifies that there is no or minimal contamination in the prep methotl or calibration procedure. <br />Control Samples Verifies the accuracy of Ue method, including the prep procedure. <br />Duplicates Verdes the precision of the instrument and/or method. <br />Spikes/Fortified Matrix Determines sample matrix interferences, if any. <br />Standard Verifies the validity of the calibration. <br />B Analy[e wncentration detected at a value between MDL and POL. <br />H Analysis exceedetl method hold time. pH is a Feld test with an immediate hold time. <br />R Pwr spike recovery accepted because the other spike in the set fell within the given Iimi45. <br />T High Relative Percent Difference (RPD) accepted because sample wncentrations are less than 10x the MDL. <br />U Analyle was analyzed for but not detected at me indicated MDL <br />V High blank data accepted because sample concentration is 10 times higher than blank concentration <br />W Poor recovery for Silver quality control is accepted because Silver often precipitates with Chloride. <br />X Quality control sample is out o/control, <br />Z Poor spike recovery is accepted because sample concentration is four times greater than spike concontraticn. <br />(1) EPA 60014-83-020. Methods for Chemical Analysis of Water and Wastes. March 1983. <br />(2) EPA 6001R-93-100. Methods for the Determination of Inorganic Substances in Environmental Samples, August 1993. <br />(3) EPA 600/R-94-111. Methods for the Determination of Metals in Environmenal Samples -Supplement I, May 1994. <br />(6) EPA SW-846. Test Methods for Evaluating Sotid Waste, Third Edition with Update III, December 199fi. <br />(6) Standard Methods for the Examination of Water and Wastewater, 19th etlition, 1995. <br />(1) QC results wlculaletl from raw data. Results may vary slightly if the rounded values are used in the calculations. <br />{2) Soil, Sludge, and Plant matrices for Inorganic analyses are reponetl on a dry weight basis. <br />(3) Animal matrices for Inorganic analyses are reported on an "as received" basis. <br />REPIN03.11.00.01 <br />L43568: Page 4 of 5 <br />