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i ~p~~ <br />CORE LABORATORIES <br />D U A L l T '! A S S U R A N C E M E T H O D S <br />REFERENCE S A N D N O T E S <br />Report Date: 06/30/97 <br />COMMENTS <br />e) ND = Not detected. NC =Not calculable due to value(s) lower <br />then the detection limit. <br />b) Date in the OA report may differ from final results due to <br />digestion end/or dilution of sempl es into analytical ranges. <br />Duality control results ere reported "es analyzed" within <br />the instruments established calibration range. <br />c) The "Time Analyzed" in the OA report refers to the start time of <br />the analytical batch which may not ref feet the actual time of <br />each analysis. The "Date Analyzed" is the actual date of analysis. <br />d) Results for soil end sludge samples are reported on a wet weight <br />basis (i. e, not corrected for percent moisture) unless otherwise <br />indicated. <br />' BLANK OC SAMPLE IDENTIFICATION <br />MB Method Blank <br />EB Extraction Blank <br />ICB Initial Calibration Blank <br />CCB Continuing Calibration Blank <br />SPIKE DC SAMPLE IDENTIFICATION <br />MS Method (Matrix) Spike <br />NSD Method (Matrix) Spike Duplicate <br />PDS Post-D igestion Spike <br />SB Spike Blank <br />SBD Spike Blank Duplicate <br />REFERENCE STANDARD OC SAMPLE IDENTIFICATION <br />LCS Laboratory Control Standard <br />RS Reference Standard <br />ICV Initial Calibration Verification Standard <br />CCV Continuing Calibration Verification Standard <br />ISA/ISB tCP Interference Check SanQle <br />ICL Initial Calibration/Laboratory Control Sample <br />DSC Distilled Standard Check <br />DUPLICATE OC SAMPLE IDENTIFICATION <br />MD Method (Matrix) Duplicate <br />ED Extraction Duplicate <br />Analyses performed by a subcontract laboratory are indicated on the <br />anal ytitel arxi/ar quality control reports under "Technician" using <br />the following Lades: <br />. SUBCONTRACT LABORATORY CODE <br /> Core Laboratories - Anaheim, CA • AN <br /> Core Laboratories - Casper, YY • CA <br />' Core <br />Core Laboratories <br />Laboratories - Corpus Christi, T% <br />- Edison, Nu • CC <br />• ED <br /> Core Laboratori es - Gulf States - Xouston, T% • HE <br /> Core Laboratories - Xouston, T% • HP <br /> Core Laboratories - Indianapolis, IN • IN <br />Page 4 <br /> <br /> <br />