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ADZ Laboratories, Inc. ' <br /> 2773 Downhill Drive Steamboat Springs,CO 80487 (800)334-5493 <br /> Report Header Explanations <br /> Batch A distinct set of samples analyzed at a specific time <br /> Found Value of the OC 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 ft4) <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 tens"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 /> QC Sample Types <br /> SURR Surrogate LFM Laboratory Fortified Matrix <br /> INTS Internal Standard LFMD Laboratory Fortified Matrix Duplicate <br /> DUP Sample Duplicate LRB Laboratory Reagent Blank <br /> LCSS Laboratory Control Sample-Soil MS/MSD Matrix Spike/Matnx Spike Duplicate <br /> LCSW Laboratory Control Sample-Water PBS Prep Blank-Soil <br /> LFB Laboratory Fortified Blank PBW Prep Blank-Water <br /> QC Sample Type Explanations <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 /> ACZ• • . <br /> B Anatyte concentration detected at a value between MDL and PQL.The associated value is an estimated quantity. <br /> O Anatyte 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 Anatyte 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 /> 'Method References <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(11),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://mwA,.acz.com/public/extquallist.pdf <br /> REP002.03.15.02 <br /> L34107-1611231116 Page 19 of 25 <br />