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ACZ Laboratories, Inc.
<br />• 2773 Downhill Onve Steamboat Springs CO 80487 (800) 334 549.
<br />Batch A distinct set of samples analyzed at a specific time
<br />Found Value of the QC Type of interest
<br />Limi( Upper limit for RPD, in %.
<br />Lower Lower Recovery Limit, in % (ezcepi for LCSS, mg/Kg)
<br />MDL Method Detection Limit. Same as Minimum Reporting Lirtet. Allows for instrument and annual fluctuations.
<br />PCN/SCN A number assigned to reagents/standards to trace to the manufacturer's certifcate of analysis
<br />PQL Practical Quantita[ion Limit, typically 5 times the MDL. '
<br />OC True Value of the Control Sample or the amount added to the Spike ~
<br />Rec Amounf of the true value or spike added recovered, in % (ezcepi for LCSS, mg/Kg)
<br />RPD Relatve Percent Difference, calwlatlon used for Duplicate OC Types
<br />Upper Upper Recovery Limit, in % (except for LCSS, mglKg)
<br />Sample Value of the Sample of interest
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<br />~ AS Analytical Spike (Post Digestion) LFM Laboratory Fortified MaWx
<br />ASD Analytical Spike (Post Digestion) Duplicate LFMD Laboratory Fortified Matrix Duplicate
<br />DUP Sample Duplicate LRB Laboratory Reagent Blank
<br />LCSS Laboratory Control Sample -Soil MS/MSD Matrix Spike/Matdz Spike Duplio[e
<br />LCSW Laboratory Contml Sample -Water PBS Prep Blank -Soil
<br />LFB Laboratory Fortified Blank PBW ro Prep Blank -Water
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<br />Blanks Vedfies that there is rw or rtunimal contaminafion in the prep method procedure
<br />Conhol Samples Verifies the accuracy of the method, including the prep procedure.
<br />Duplicates Verdes the precision of the instmment and/or method.
<br />SpikeslFortified Mahix Determines sample matrix interferences, if any.
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<br />B Analyte concentration detected at a value between MDL and PDL d
<br />R Poor spike recovery accepted beceuse the other spike in the set fell within the given limits.
<br />T High Relative Percent Difference (RPD) accepted because sample concentrafions are less than 10x the MDL.
<br />U Analyte 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 recovery for Silver quality control is accepted because Silver often precipitates with Chloride.
<br />X Quality control sample is out of centrd.
<br />Z Poor spike recovery is accepted because sample cencenhation is four times greater than spike concentration.
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<br />I .r
<br />(1) EPA 600/4-83-020. Methods for Chemical Analysis of Water and Wastes. March 1983.
<br />(2) EPA 600/R-93-100. Methods for the Determination of Inorganic Substances in Environmental Samples, August 1993.
<br />(3) EPA 600/R-94-711. Methods for the Determination of Metals in Environmental Samples -Supplement I, May 1094.
<br />(5) EPA SW-846. Test Methods for Evaluating Solid Waste, Third Edition with Update II, September 1994.
<br />(6) Standard Methods for the F~amination of Water and Wastewater, 19th edition, 1995.
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<br />(1) QC results calculated from raw data. Results may vary slightly if the rounded values are used in the calculations.
<br />• (2) Soil, Sludge, and Plant matrices (or Inorganic analyses are reported on a dry weigh) basis.
<br />(3) Animal matrices for Inorganic analyses are reported on an "as received" basis.
<br />REPIN03.71.00.07
<br />L33193: Page ? of 9
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