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Laboratories, Inc. <br />Batch A distinct set of samples analyzed at a specific time <br />Found Value of the qC Type of interest <br />Limit Upper limit for RPD, in %. <br />Lower Lower Recevery Limit, in % (except for LCSS, mg/Kg) <br />MDL Method Detection Limit. Same as Minimum Reporting Limit. Allows for instrument and annual fluctuations. <br />PCN/SCN A number assignetl to reagents/standards to trace to the manufacturer's certificate of analysis <br />PQL Practical quantitation Limit, typically 5 times the MDL. <br />QC True Value of the Control Sample or the amount added to the Spike <br />Rec Amount of the ime value or spike addetl recovered, in % (except for LCSS, mg/Kg) <br />RPD Relative Percent Difference, calculation used for Duplicate qC Types <br />Upper Upper Recovery Limit, in % (except for LCSS, mg/Kg) <br />Sample Value of the Sample of interest <br />AS Analytical Spike (Post Digestion) LCSWD <br />ASD Analytical Spike (Post Digestion) Duplicate LFB <br />CCB Continuing Calibration Blank LFM <br />CCV Continuing Calivation Verification standard LFMD <br />DUP Sample Duplicate LRB <br />ICB Initial Calibration Blank MS <br />ICV Initial Calibration Verifcation standard MSD <br />ICSAB Inter-element Correction Standard - A plus B solutions PBS <br />LCSS Laboratory Control Sample -Soil PBW <br />LCSSD Laboratory Control Sample -Soil Duplicate PQV <br />LCSW Laboratory Control Sample -Water SOL <br />Laboratory Control Sample -Water Duplicate <br />Laboratory Fortified Blank <br />Laboratory Fortifed Matrix <br />Laboratory Fortified Matrix Duplicate <br />Laboratory Reagent Blank <br />Matrix Spike <br />Matrix Spike Duplicate <br />Prep Blank -Soil <br />Prep Blank -Water <br />Practical quantitation Verifcation standard <br />Serial Dilution <br /> <br /> <br />Blanks Verifes that there is no or minimal contamination in the prep method or calibration procedure. <br />Control Samples Verifies the accuracy of the method, including the prep procedure. <br />Duplicates Verifies the precision of the instrument and/or method. <br />Spikes/Fortifed Matrix Determines sample matrix intederences, if any. <br />Standard Verifes the validity of the calibration. <br />B Analy[e concentration tletected at a value between MDL and PQL. <br />H Analysis exceeded method hold time. pH is a feld test with an immediate hold time. <br />R Poor spike recevery accepted because the other spike in the set fell within the given limits. <br />T High Relative Percent Difference (RPD) accepted because sample concentrations are less than 10x the MDL. <br />U Analyte was analyzed for but not detected at the indicated MDL <br />V High blank tlata 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 Chloritle. <br />X quality centrol sample is out of wntrol. <br />Z Poor spike rewvery is accepted because sample concentration is four times greater than spike concentration. <br />(1) EPA 600/4-83-020. Methods for Chemical Analysis of Water and Wastes. March 1983. <br />(2) EPA 600/R-93-100. Methods for the Determination of Inorganic Substances in Environmental Samples, August 1993. <br />(3) EPA 600IR-94-111. Methods for the Determination of Metals in Environmental Samples -Supplement I, May 1994. <br />(5) EPA SW-846. Test Methods for Evaluating Solid Waste, Thirtl Etlition with Update III, December 1996. <br />(6) Standard Methotls for the Examination of Water and Wastewater, 19th edition, 1995. <br />(1) qC results calculated tram raw tlata. Results may vary slightly it the rountled values are used in the calculations. <br />(2) Sail, Sludge, and Plant malnces (or Inorganic analyses are reported 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 />L42643: Page 8 of 28 <br />