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Laboratories, Inc. <br />Batch A distinct set or samples analyzed at a specifc time <br />Found Value of the QC Type of interest <br />Limit Upper limit for RPD, in %. <br />Lower Lower Recovery Limit, in % (except for LCSS, mg/Kg) <br />MDL Method Detection Limit. Same as Minimum Reponing Limit. Allows for instrument and annual fluctuations. <br />PCN/SCN A number assigned to reagents/standards to trace to the manufacturers cedificate of analysis <br />PQL Practical Quanti[ation Limit, typically 5 times the MDL. <br />QC True Value o(Ihe Control Sample or the amount atlded to the Spike <br />Rec Amount of the tme value or spike added recovered, in % (except for LCSS, mg/Kg) <br />RPD Relagve 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 ofinterest <br />AS Analytical Spike (Post Oiges6on) LCSWD Laboratory Control Sample -Water Duplicate <br />ASD Analytical Spike (Post Digestion) Duplicate LFB Laboratory Fortified Blank <br />CCB Continuing Calibration Blank LFM Laboratory Fortified Matrx <br />CCV Continuing Calivation Vedfication standartl LFMD Laboratory Fortified Matrix Duplicate <br />DUP Sample Duplicate LRB Laboratory Reagent Blank <br />ICB Initial Calibration Blank MS Matrix Spike <br />ICV Initial Calibration Verification standard MSD Matrix Spike Duplicate <br />ICSAB Inter-element Correction standartl - A plus B solutions PBS Prep Blank -Soil <br />LCSS Laboratory Control Sample -Soil PBW Prep Blank -Water <br />LCSSD Labomtory Control Sample -Soil Duplicate PQV Practical Quantitation Verification standard <br />LCSW Laboratory Control Sample -Water SDL Serial Dilution <br />Blanks Verifes that there is no or minimal contamination in the prep method or calibration procedure. <br />Control Sa mples Verifies me accuracy of the method, including th e prep procedure. <br />Duplicates Verifies the precision of the instrument and/or method. <br />Spikes/Fortified Matrix Determines sample matrix inlerrerences, if any. <br />Standard Verifies the validity of the calibration. <br />B Analyte concentration detected at a value between MDL and PQL. <br />H Analysis exceeded method hold Ume. pH is a (field test with an immediate hold time. <br />R Poor spike recovery accepted because the other spike in the set fell within the given limits. <br />T High Relative Percent Difference (RPD) accepletl because sample concenUations are less Nan 10x the MDL. <br />U Analyta was analyzed for but not detected at the indicated MDL <br />V High blank data accepted because sample concentration is 10 times higher than blank concentration <br />W Poor rewvery for Silver quality wntrol Is accep[atl because Sllvar often preapilates calm Chloride. <br />X Quality control sample is out of control. <br />Z Poor spike recovery is accepted because sample concentration is four times greater than spike concenUation. <br />(1) EPA 600/4-83-020. Methods for Chemical Analysis of Water and Wastes, March 1983. <br />(2) EPA 600IR-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 Environmental Samples -Supplement I, May 1994. <br />(6) EPA SW-846. Test Methotls for Evaluating Solitl Waste, Third Etlition with Uptlate III, December 1996. <br />(6) Standard Methods tw the Examination of Water and Wastewater, 19th edition, 1995. <br />(1) QC results calculated from raw data. Results may vary slightly if the rounded values are used in the plculations. <br />(2) Soil, Sludge, antl Plant matrices for Inorganic analyses are reported on a dry weight basis. <br />(3) Animal matrices for inorganic anayses are reported on an "as received" basis. <br />REPIN03.11.00.01 <br />Li1712: Page 9 of 31 <br />