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4~+ AB
<br />CORE LABORATORIES
<br />D U A L I T Y A S~S U R A N L E M E T H O D S
<br />R E F E R E N C E S A N D N O T E S
<br />Report Date:~tt/23/97
<br />COMMENTS
<br />a) ND =Not detected- NC = Not calculable due to value(s) lower
<br />than the detection limit.
<br />b) Data in the OA report may differ from final results due to
<br />digestion and/or dilution of sanples into analytical ranges.
<br />Ouality control results ere reported "as 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 reflect the actual time of
<br />each analysis. The "Date Analyzed" is the actual date of analysis.
<br />d) Results for soil and 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 Hethod Blank
<br />EB Extraction Blank
<br />ICB Initial Calibration Blank
<br />CCB Continuing Calibration Blank
<br />SPIKE OC SAMPLE IDENTIFICATION
<br />MS Method (Matrix) Spike
<br />MSD Method (Matrix) Spike Duplicate
<br />PDS Pos[-Digestion Spike
<br />PSD Post-Digestion Spike Duplicate
<br />SB Spike Blank
<br />SBD Spike Blank Duplicate
<br />REFERENCE STANDARD OC SAMPLE IDENTIFICATION
<br />LCS Laboratory Lont rol Standard
<br />RS Reference Standard
<br />ICV Initial Calibration Verification Standard
<br />CCV Continuing Calibration Verification Standard
<br />ISA/1SB ICP Interference Check Sanple
<br />ICL Initial Calibration/Laboratory Control Sample
<br />DSC Distilled Standard Check
<br />CR1 CRDL Low-Level ICP Stallard
<br />DUPLICATE OC SAMPLE IDENTIFICATION
<br />MD Method (Matrix) Duplicate
<br />ED Extraction Duplicate
<br />SD Serial Dilution
<br />Analyses performed by a subcontract laboratory are indicated on [he
<br />analytical and/or quality control reports under "Technician" using
<br />the following codes:
<br />SUBCONTRACT LABORATORY CODE
<br />Core Laboratories - Anaheim, CA • AN
<br />Core Laboratories - Casper, NY • CA
<br />Core Laboratories - Corpus Christi, ix • CC
<br />Core Laboratories - Edison, NJ • EO
<br />Page 2
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