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110 2nd Avenue South,ND7 Pacheco CA 94553-5560 <br /> McCampbell Analytical Inc L.— Telephone 925-798-1620 Fax 925-798-1622 <br /> http//wwwtnccarnpbcl1com E rmil mainmecampbe0 com <br /> • QC SUMMARY REPORT FOR SW8260B <br /> Matrix W WorkOrder 0312187 <br /> EPA Method SW8260B Extraction SW5030B BatchlD 9622 Spiked Sample ID 0312187-0158 <br /> Sample Spiked MS' MSD MS-MSD' LCS I LCSD LCS-LCSD Acceptance Critena(%) <br /> pg/L pg/L % Ree %ReG %RPD %ReC %Rec %RPD Low High <br /> Methyl-t-butyl ether(MTBE) 2 56 10 105 100 382 102 101 161 70 130 <br /> %SSI 112 100 114 111 307 105 103 136 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=Matnx 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)I((MS+MSD)12) <br /> MS and I or MSD spike recoveries may not be near 100%or the RPDs near 0%if a)the sample is inhomogenous AND contains significant concentrations of <br /> analyte relative to the amount spiked or b)if that speufic sample matrix interferes with spike recovery <br /> NIA=not enough sample to perform matrix spike and matrix spike duplicate <br /> NR=analyte concentralion in sample exceeds spike amount for sod matrix or exceeds 2x spike amount for water matrix or sample diluted due to high matnx or <br /> analyte content <br /> Laborato extraction solvents such as meth ene chloride and acetone ma occasianall a ear�n the method blank at low levels <br />