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ADZ Laboratories, Inc. 2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334 -5493 :Report Header Explanations Batch A distinct set of samples analyzed at a specific time Found Value of the QC Type of interest Lima Upper limit for RPD, in Lower Lower Recovery Limit, in % (except for LCSS, mg /Kg) MDL Method Detection Limit Same as Minimum Reporting Limit Allows for instrument and annual fluctuations PCN /SCN A number assigned to reagents /standards to trace to the manufacturers certificate of analysis PQL Practical Quantitation Limit, typically 5 times the MDL QC True Value of the Control Sample or the amount added to the Spike Rec Recovered amount of the true value or spike added, in % (except for LCSS, mg /Kg) RPD Relative Percent Difference, calculation used for Duplicate QC Types Upper Upper Recovery Limit, in % (except for LCSS, mg /Kg) Sample Value of the Sample of interest AS Analytical Spike (Post Digestion) LCSWD Laboratory Control Sample - Water Duplicate ASD Analytical Spike (Post Digestion) Duplicate LFB Laboratory Fortified Blank CCB Continuing Calibration Blank LFM Laboratory Fortified Matnx CCV Continuing Calibration Verification standard LFMD Laboratory Fortified Matrix Duplicate DUP Sample Duplicate LRB Laboratory Reagent Blank ICB Initial Calibration Blank MS Matrix Spike ICV Initial Calibration Verification standard MSD Matrix Spike Duplicate ICSAB Inter - element Correction Standard - A plus B solutions PBS Prep Blank - Soil LCSS Laboratory Control Sample - Soil PBW Prep Blank - Water LCSSD Laboratory Control Sample - Sod Duplicate PQV Practical Quantitation Verification standard LCSW OC Sample Type Laboratory Control Sample - Water Explanations SDL Serial Dilution Blanks Verifies that there is no or minimal contamination in the prep method or calibration procedure Control Samples Verifies the accuracy of the method, including the prep procedure Duplicates Verifies the precision of the instrument and /or method Spikes/Fortified Matrix Determines sample matnx interferences, if any Standard Venfies the validity of the calibration B Analyte concentration detected at a value between MDL and PQL The associated value is an estimated quantity H Analysis exceeded method hold time pH is a field test with an immediate hold time L Target analyte response was below the laboratory defined negative threshold U The material was analyzed for, but was not detected above the level of the associated value The associated value is either the sample quantdation limit or the sample detection limit (1) EPA 600/4 -83 -020 Methods for Chemical Analysis of Water and Wastes, March 1983 (2) EPA 600/R -93 -100 Methods for the Determination of Inorganic Substances in Environmental Samples, August 1993 (3) EPA 600/R -94 -111 Methods for the Determination of Metals in Environmental Samples -Supplement I, May 1994 (4) EPA SW -846 Test Methods for Evaluating Solid Waste (5) Standard Methods for the Examination of Water and Wastewater (1) QC results calculated from raw data Results may vary slightly if the rounded values are used in the calculations (2) Soil, Sludge, and Plant matrices for Inorganic analyses are reported on a dry weight basis (3) Animal matrices for Inorganic analyses are reported on an "as received" basis (4) An asterisk in the "XQ" column indicates there is an extended qualifier and /or certification qualifier associated with the result (5) If the MDL equals the PQL or the MDL column is omitted, the PQL is the reporting limit For a complete list of ACZ's Extended Qualifiers, please click httI2,'wvt ti .acz convpubhc extqual list pdf REP001 09 12 01 L16818- 1402281029 Page 13 of 29