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G1 <br /> 110 2nd Avenue South,#D7 Pacheco CA 94553 5560 <br /> Inc.McCampbell Analytical, Telephone 925 798-1620 Fax 925-798-1622 <br /> Website www mccampbell com E mad main®mccampbell corn <br /> QC SUMMARY REPORT FOR SW8260B <br /> W O Sample Matrix Water QC Matrix Water WorkOrder 0507050 <br /> EPA Method SW8260B Extraction SW5030B BatchlD 16990 Spiked Sample ID 0507026-0088 <br /> Sample Spiked MS MSD MS-MSD LCS LCSD LCS-LCSD Acceptance Criteria(%) <br /> Analyte <br /> pg/L. trg/L %Rec % Rec %RPD % Rec %Rec % RPD MS 1 MSD LCS 1 LCSD <br /> Methyl-t-butyl ether(MTBE) ND 10 973 972 0 183 962 982 210 70- 130 70_-130 <br /> %SSI 103 10 93 94 0 349 91 92 0 743 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 16990 SUMMARY <br /> Sample ID Date Sampled Date Extracted Date Analyzed Sample ID Date Sampled Date Extracted Date Analyzed <br /> 0507050-OOIB 7101105 9 19 AM 7109105 7/09105 9 52 AM I 0507050-002B 7/01/05 9 33 AM 7109105 7109105 1 35 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)I(Amount Spiked) RPD=100'(MS- MSD)1((MS+MSD)12) <br /> MS I MSD spike recoveries and/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 /> N/A=not enough sample to perform matrix spike and matrix spike duplicate <br /> NR=anaiyte 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 analyte content <br /> Laboratojy extraction solvents such as methyiene chloride and acetone may occasional!y appear in the method blank at low levels <br /> DHS Certification No 1644 QA/QC Officer <br />