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Q 110 2nd Avenue South #D7 Pacheco CA 94553 5560 <br /> McCampbell Analytical, Inc. Telephone 925-798-1620 Fax 925 798 1622 <br /> Website www mccampbeli com E mail main®niccampbell corn <br /> QC SUMMARY REPORT FOR SW8260B <br /> W O Sample Matrix Water 4C Matrix Water WorkOrder 0412516 <br /> EPA Method SW82606 Extraction SW5030B BatchlD 14492 Spiked Sample ID 0412516-027B <br /> Sample Spiked MS* MSD* MS-MSD' LCS LCSD LCS-LCSD Acceptance Criteria (%) <br /> Analyte <br /> 119/1- Ng/L % Rec % Rec % RPD %Rec % Rec % RPD MS 1 MSD LCS/LCSD <br /> Methyl t-butyl ether(MTBE) ND 10 894 946 5 71 95 8 93 8 2 10 70- 130 70- 130 <br /> %SSI 102 10 100 102 2 10 102 99 340 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 /> MS=Matrix Spike MSD=Matrix Spike Duplicate LCS=Laboratory Control Sample LCSD=Laboratory Control Sample Duplicate RPD=Relative Percent <br /> Deviation <br /> %Recovery=100*(MS-Sample)/(Amount Spiked) RPD=100*(MS- MSD)/((MS+MSD)12) <br /> 'MS 1 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 <br /> inhomogenous AND contains significant concentrations of analyte relative to the amount spiked or b)the spiked sample s matrix interferes with the spike <br /> recovery <br /> NIA=not enough sample to perform matrix spike and matrix spike duplicate <br /> NR=analyte concentration in sample exceeds spike amount for soil matrix or exceeds 2x spike amount for water matrix or sample diluted due to high matrix or <br /> analyte content <br /> ,Laboratory extraction solvents such as methylene chloride and acetone may occasional?y appear in the method blank at low levels <br /> DHS Certification No 1644 QA/QC Officer <br />