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{t 110 2nd Avenue South 4D7 Pacheco CA 94553 5560 <br /> L6u/Ay'yy McCampbell Analytical, Inc. Telephone 925-798-1620 Fax 925-798-1622 <br /> Website www mccampbell com E mail mam tnecampbell corn <br /> QC SUMMARY REPORT FOR SW8260B <br /> W Q Sample Matrix Water QC Matrix Water WorkOrder 0506567 <br /> EPA Method SW8260B Extraction SW5030B BatchlD 16538 Spiked Sample ID 0506573-002C <br /> Analyte Sample Spiked MS MSD MS-MSD LCS LCSD LCS-LCSD Acceptance Criteria(%) <br /> pg/L pg/L % Rec % Rec % RPD %Rec %Rec %RPD MS 1 MSD LCS/LCSD <br /> Methyl-t-butyl ether(MTBE) ND 10 932 973 436 978 932 486 70- 130 70- 130 <br /> %SSI 108 10 92 96 462 94 94 0 70-130 70- 130 <br /> All target compounds in the Method Blank of this extraction batch were ND less than the method RL with the following exceptions <br /> NONE <br /> BATCH 16938 SUMMARY <br /> Sample ID Date Sampled Date Extracted Date Analyzed Sample ID Date Sampled Date Extracted Date Analyzed <br /> 0506567-021B 6129105 it 26 AM 7106105 7/06/05 12 02 PM <br /> MS=Matrix Spike MSD=Matrix Spike Duplicate LCS=Laboratory Control Sample,LCSD=Laboratory Control Sample Duplicate RPD=Relative Percent Deviation <br /> %Recovery=100'(MS-Sample)/(Amount Spiked) RPD=100"(MS- MSD)1((MS+MSD)12) <br /> MS/MSD spike recoveries and 1 or%RPD may fall outside of laboratory acceptance criteria due to one or more of the following reasons a)the sample is inhomogenous AND <br /> contains significant concentrations of analyte relative to the amount spiked or b)the spiked sample s matrix interferes with the spike recovery <br /> NIA=not enough sample to perform matrix spike and matrix spike duplicate <br /> 01NR=analyle concentration in sample exceeds spike amount for snit matnx or exceeds 2x spike amount for water matrix or sample diluted due to high matnx or analyte content <br /> 1-aboratoryextraction solvents such as methylene chloride and acetone may occasionally appear in the method blank at low levels <br /> DHS Certification No 1644 QA/QC Officer <br />