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f <br /> AOZ Laboratories, Inc. ' • ' ` <br /> 2773 Downhill Drive Steamboat Springs,CO 80487(800)334-5493 <br /> Header Explanations <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 Recovery Limit,in% (except for LCSS,mg/Kg) <br /> MDL Method Detection Limit. Same as Minimum Reporting Lima. Allows for instrument and annual fluctuations. <br /> PCN/SCN A number assigned 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 a Spike <br /> Rec Recovered amount of the true value or spike added,in% xcept for LCSS,mg/Kg) <br /> RPD Relative Percent Difference,calculation used for Duplicat QC Types <br /> Upper Upper Recovery Limit,in% (except for LCSS,mg/Kg) <br /> Sample Value of the Sample of interest <br /> �OC Sample Types <br /> AS Analytical Spike(Post Digestion) 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 Matrix <br /> CCV Continuing Calibration Verification standard 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 Standard-A plus B solutions PBS Prep Blank-Soil <br /> LCSS Laboratory Control Sample-Soil PBW Prep Blank-Water <br /> LCSSD Laboratory Control Sample-Soil Duplicate PQV Practical Quantitation Verification standard <br /> LCSW Laboratory Control Sample-Water SDL Serial Dilution <br /> OC Sample Type Explanations <br /> Blanks Verifies that there is no or minim il contamination in the prep method or calibration procedure. <br /> Control Samples Verifies the accuracy of the Mett Dd,including the prep procedure. <br /> Duplicates Verifies the precision of the instn ment and/or method. <br /> Spikes/Fortified Matrix Determines sample matrix interf rences,if any. <br /> Standard Verifies the validity of the calibre on. <br /> ACZ• • <br /> B Analyte concentration detected at a value between MDL E id PQL.The associated value is an estimated quantity. <br /> H Analysis exceeded method hold time. pH is a field test w'i an immediate hold time. <br /> L Target analyte response was below the laboratory definec negative threshold. <br /> U The material was analyzed for,but was not detected abo the level of the associated value. <br /> The associated value is either the sample quantitation lim or the sample detection limit. <br /> :Method References <br /> (1) EPA 600/4.83-020. Methods for Chemical Analysis of W ter and Wastes,March 1983. <br /> (2) EPA 600/R-93-100. Methods for the Determination of Inanic Substances in Environmental Samples,August 1993. <br /> (3) EPA 600/R-94-111. Methods for the Determination of M Is in Environmental Samples-Supplement I,May 1994. <br /> (4) EPA SW-846. Test Methods for Evaluating Solid Waste. <br /> (5) Standard Methods for the Examination of Water and Wasiewaler. <br /> Comments <br /> (1) QC results calculated from raw data. Results may vary s htly I the rounded values are used in the calculations. <br /> (2) Soil,Sludge,and Plant matrices for Inorganic analyses a reported on a dry weight basis. <br /> (3) Animal matrices for Inorganic analyses are reported on arl"as received"basis. <br /> (4) An asterisk in the"XQ"column indicates there is an extended qualifier and/or certification qualifier <br /> associated with the result. <br /> (5) If the MDL equals the PQL or the MDL column is omitted,the PQL is the reporting limit. <br /> For a complete list of ACZ's Extended Qualifiers,please click: htp://www.acz.com/public/extquallist.ndf <br /> REP001.09.12.01 <br /> I <br /> L19264-1407281030 Page 7 of 14 <br />