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110 2nd Avenue South,qD7 Pacheco CA 94553-5560 <br /> McCampbell Analytical Inc Telephone 925-798-1620 Fax 925-798-1622 <br /> httpJ/www mccampbell com E mail main mccampbell com <br /> QC SUMMARY REPORT FOR SW8260B <br /> I <br /> Matrix W WorkOrder 0312366 <br /> EPA Method SW8260B Extraction SW5030B SatchlD 9762 Spiked Sample ID 0312371-007B <br /> Sample Spiked MS" MSD' MS-MSD" LCS LCSD LCS-LCSD Acceptance Cntena(%) <br /> pg/L pgIL % RBC % Rec % RPD %Rec % Rec % RPD Low High <br /> tert-Amyl methyl ether(TAME) ND 10 929 929 0 857 85 0 776 70 130 <br /> I t-Butyl alcohol(TBA) ND 50 125 124 1 12 865 91 7 5 89 70 130 <br /> 1,2-Dibromoethane(EDB) ND 10 107 109 126 101 101 0 70 130 <br />' 1,2-Dechloroethane(1,2-DCA) ND 10 114 117 208 117 116 128 70 130 <br /> Dttsopropyl ether(DIPE) ND 10 1 119 122 185 118 115 239 70 130 <br /> Ethyl tent-butyl ether(ETBE) ND 10 107 109 1 85 104 100 161 70 130 <br />' Methyl-t-butyl ether(MTBE) ND 10 116 118 226 108 105 327 70 130 <br /> %SSI 102 100 985999 1 39 103 101 199 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 /> 1 <br /> 1 <br /> 1 <br /> 1 <br />' MS=Matnx Spike MSD=Matrix Spike Duplicate,LCS=Laboratory Control Sample LCS❑=Laboratory Control Sample Duplicate RPD=Relative Percent <br /> Deviation <br /> %Recovery=100*(MS-Sample)I(Amount Spiked) RPD=100*(MS- MSD)1((MS+MSD)12) <br />' •MS and I or MSD spike recoveries may not be near 100%or the BPDs near 0%u if a)the sample is inhomogenous AND contains significant concentrations of <br /> analyte relative to the amount spiked,or b)it that specific sample matnx interferes with spike recovery <br /> N/A=not enough sample to perform matnx spike and matrix spike duplicate <br /> NR=analyte concentration m sample exceeds spike amount for sod matrix or exceeds 2x spike amount for water matnx 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 />