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110 2nd Avenue South #D7,Pacheco,CA 94553-5560 <br /> McCampbell Analytical Inc Tetephone 925-798-1620 Fax 925-798-1622 X <br /> http Ilwww mccampbell cam E-mail mam(c8}nccampbcll coin <br /> . QC SUMMARY REPORT FOR SW8260B <br /> Matrix W WorkOrder 0209239 <br />' EPA Method SW8260B _ Extraction SW5030B BatchlD 3994 Spiked Sample ID 0209239-0018 <br /> Sample Spiked MS* MSD" MS-MSD' LCS LCSD LCS-LCSD Acceptance Criteria(%) <br /> Compound <br />' Ng/L NglL % Rec %Rec %RPD %Rec %Rec %RPD Low High <br /> tert-Amyl methyl ether(TAME) ND 10 110 110 00667 977 111 125 70 130 <br />' Methyl-t-butyl ether(MTBE) ND 10 117 118 0 258 103 118 137 70 130 <br /> Dusopropyl ether(I)IPE) ND 10 110 110 0 299 100 108 738 70 130 <br /> Ethyl tent-butyl ether(ETBE) ND 10 112 112 0 390 999 112 117 70 130 <br />' %SSI 104 104 109 109 0 246 105 103 198 70 130 <br /> All target compounds in the Method Blank of this extraction batch were ND less than the method R1,with the following exceptions <br />' NONE <br /> 1 <br /> 1 <br /> MS=Matrix Spike,MSD=Matrix Spike Duplicate LCS=Laboratory Control Sample,LCSD=Laboratory Control Sample Duplicate,RPD=Relative Percent <br />' Deviation <br /> . NIA=not enough sample to perform matrix spike and matrix spike duplicate <br /> NR=analyte concentration in sample exceeds spike amount for sot!matrix or exceeds 2x spike amount for water matrix or sample diluted due to high matnx or <br />' analyte content <br /> %Recovery=100•(MS-Sample)/(Amount Spiked),RPD=100"(MS—MSD)/(MS+MSD)`2 <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 specific sample matrix interferes with spike recovery <br />