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r <br /> I 10 2nd Avenue South #D7 Pacheco CA 94553-5560 <br /> McCampbell Analytical, Inc. Telephone 925 798-1620 Fax 925-798 1622 <br /> rWebsite www mccampbell com E-mail m:im@rn.canTbell corn <br /> QC SUMMARY REPORT FOR SW8260B <br /> r <br /> Matnx W WorkOrder 0406460 <br /> rEPA Method SW8260B Extraction SW5030B BatchlD 92151 Spiked Sample 1D 0406458-005B <br /> Sample Spiked MS' MSD' MS-MSD' LCS LCSD iLCS-LCSD Acceptance Criteria(%) <br /> r pg/L pg/L %Rec %Rec % RPD %Rec % Rec %RPD Low High <br /> tert-Amyl methyl ether(TAME) ND 10 867 873 0 644 769 841 894 70 130 <br /> r t-Butyl alcohol(TBA) ND 50 974 113 145 93 5 953 1 86 70 130 <br /> Dltsopropyl ether(DIPS) ND 10 125 127 1 26 119 120 127 70 130 <br /> Ethyl tert-butyl ether(ETRE) ND 10 111 104 652 106 108 205 70 130 <br /> rMethyl-t-butyl ether(MTBE) 5954 10 NR NR NR 96 992 334 70 130 <br /> %SS l 101 10 849 812 450 848 83 1 198 70 130 <br /> rAll target compounds in the Method Blank of this extraction batch were ND less than the method RL with the following exceptions <br /> NONE <br /> r <br /> r � <br /> r <br /> r <br /> r <br /> r <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)I(Amount Spiked) RPD=100'(MS- MSD)I((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 /> NIA=not enough sample to perform matrix spike and matrix spike duplicate <br /> NR=analyte concentration in sample exceeds spike amount for sal matrix or exceeds 2x spike amount for water matrix or sample diluted due to high matrix or <br />' analyte content <br /> Laboralo extraction solvents such as methylene chloride and acetone mayocca8,onally appearm the method blank at low levels <br /> • <br /> DHS Cernfication No 1644 ,;� QA/QC Officer <br /> I <br /> I <br />