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110 2nd Avenue South 9D7 Pacheco CA 94553-5560 <br /> [WW_Ca�pbell Analytical Inc Telephone 925-798-1620 Fax 925-798 1622 <br /> http//www macampbell com E-mail mam@mccampbcll com <br /> QC SUMMARY RETORT FOR SW8260B <br /> Matrix W WorkOrder 0207221 <br /> EPA Method SW8260B Extraction SW5030B BatchlD 2992 Spiked Sample ID 0207221-0058 <br /> Sample Spiked MS* MSD* MS-MSD* LCS LCSD LCS-LCSD Acceptance Criteria(%) <br /> Compound <br /> pglL pg/L %Rec %Rec %RPD %Rec %Rec %RPD Low high <br /> tert-Amyl methyl ether(TAME) ND 10 113 106 594 116 1 116 0 710 70 130 <br /> Methyl-t-butyl ether(MTBE) 1 309 10 111 104 616 121 119 219 — 70 130 <br /> Dttsopropyl ether(RIPE) ND 10 114 109 397 127 124 261 70 130 <br /> Ethyl tert-butyl ether(ETBE) ND 10 112 107 443 124 123 1 05 70 130 <br /> %SS 1 108 100 105 105 0 463 856 848 0 885 70 130 <br /> All target compounds to the Method Blank of this extraction batch were ND less than the method RL with the following exceptions <br /> NONE <br /> Q <br /> lot <br /> MS=Matrix Spike MSD=Matnx Spike Duplicate LCS=Laboratory Control Sample LCSD=Laboratory Control Sample Duplicate RPD=Relative Percent <br /> Deviation <br /> ONIA=not enough sample to perform matrix spike and matrix spike duplicate <br /> NR=analyte concentration in sample exceeds spike amount for sod matrix or exceeds 2x spike amount for water matrix or sample diluted due to high matrix or <br /> analyte content <br /> %Recovery=100'(MS Sample)I(Amount Spiked),RPD=100*(MS--MSD)/(MS+MSD)'2 <br /> *MS and/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 />