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(r [x+ <br /> 110 2nd Avenue South 4D7 Pacheco CA 94553-5560 <br /> Inc.McCampbell Analytical, Telephone 925-798 1620 Fax 925-798-1622 <br /> J, I Website www mecampbell com E-mail malu@rnccanipbell con, <br /> QC SUMMARY REPORT FOR SW8260B <br /> W O Sample Matrix Water QC Matrix Water WorkOrder 0412540 <br /> EPA Method SW8260B Extraction SW5030B BatchlD 14504 Spiked Sample ID 0412541-019C <br /> Sample Spiked VIS' I MSD' MS-MSD- LCS LCSD LCS-LCSD Acceptance Criteria(%) <br /> Analyte <br /> NgIL pglL % Rec % Rec %RPD % Rec % Rec % RPD MS 1 MSD LCS/LCSD <br /> Methyl-t-butyl ether(MTBE) ND 10 102 104 200 945 922 245 70- 130 70-130 <br /> %SSI 104 10 100 100 0 98 96 266 70-130 70-130 <br /> All taiget 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)1(Amount Spiked),RPD=100'(MS- MSD)/((MS+MSD)/2) <br /> *MS I MSD spike recoveries and I 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 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 matnx 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 occasionally appear in the method blank at low levels <br /> )Y-DHS Certification No 1644 QA/QC Officer <br />