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ADZ <br />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 Recovery Limit, in % (except for LCSS, mg/Kg) <br />LCL Lower Control Limit <br />MDL Method Detection Limit. Same as Minimum Reporting Limit unless omitted or equal to the PQL (see comment #4) <br />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. Synonymous with the EPA term "minimum level". <br />QC True Value of the Control Sample or the amount added to the Spike <br />Rec Amount of the true value or spike added 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 />UCL Upper Control Limit <br />Sample Value of the Sample of interest <br />SURR <br />Surrogate <br />LFM <br />Laboratory Fortified Matrix <br />INTS <br />Internal Standard <br />LFMD <br />Laboratory Fortified Matrix Duplicate <br />DUP <br />Sample Duplicate <br />LRB <br />Laboratory Reagent Blank <br />LCSS <br />Laboratory Control Sample - Soil <br />MS/MSD <br />Matrix Spike/Matrix Spike Duplicate <br />LCSW <br />Laboratory Control Sample - Water <br />PBS <br />Prep Blank - Soil <br />LFB <br />Laboratory Fortified Blank <br />PBW <br />Prep Blank - Water <br />Blanks Verifies 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/Fortified Matrix Determines sample matrix interferences, if any. <br />B Analyte concentration detected at a value between MDL and PQL. The associated value is an estimated quantity <br />O Analyte concentration is estimated due to result exceeding calibration range. <br />H Analysis exceeded method hold time. pH is a field test with an immediate hold time. <br />J Analyte concentration detected at a value between MDL and PQL. The associated value is an estimated quantity <br />L Target analyte response was below the laboratory defined negative threshold. <br />U The material was analyzed for, but was not detected above the level of the associated value. <br />The associated value is either the sample quantitation limit or the sample detection limit. <br />(1) EPA 600/4-83-020. Methods for Chemical Analysis of Water and Wastes, March 1983. <br />(2) EPA 600/4-90/020. Methods for the Determination of Organic Compounds in Drinking Water (1), July 1990. <br />(3) EPA 600/R-92/129. Methods for the Determination of Organic Compounds in Drinking Water (II), July 1990. <br />(4) EPA SW -846. Test Methods for Evaluating Solid Waste. <br />(5) Standard Methods for the Examination of Water and Wastewater. <br />(1) QC results calculated from raw data. Results may vary slightly if the rounded values are used in the calculations. <br />(2) Excluding Oil & Grease, solid & biological matrices for organic analyses are reported on a wet weight basis. <br />(3) An asterisk in the "XQ" column indicates there is an extended qualifier and/or certification qualifier <br />associated with the result. <br />(4) 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: http://www.acz.com/public/extcivallist.pdf <br />REP002.03.15.02 <br />L27265-1510261048 Page 9 of 23 <br />