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i 110 2nd Avenue South,#D7,Pacheco,CA 94553-5560 McCampbell Analytical, Inc. Telephone 925-798 1620 Fax 925-798-1622 Website www mccarripbell cam E mad main@,niccampbell coin QC SUMMARY REPORT FOR SW8260B Matrix W WorkOrder 0406291 IEPA Method SW8260B Extraction SW5030B BatchlD 12000 Spiked Sample ID 0406291-006C Sample Spiked MS* MSD' MS-MSD" LCS LCSD LCS-LCSD Acceptance Criteria(%) pg/L Ng/L %Rec %Rec %RPD %Rec %Rec %RPD Low High tert-Amyl methyl ether(TAME) ND 10 889 896 0 808 839 859 236 70 130 t-Butyl alcohol(TBA) — ND 50 101 107 592 968 991 234 70 130 1,2-Ihbromoethane(RDB) ND 10 101 104 275 989 996 0 747 70 130 1,2-I?ichloroethane(1,2-DCA) ND 10 109 111 0 944 105 108 291 70 130 Diisopropyl ether(DIPS) ND 10 118 119 0 907 107 111 350 70 I 130 Ethyl tert-butyl ether(ETBE) ND 10 110 113 234 104 107 239 70 130 Methyl-t-butyl ether(MTBE) ND 10 108 109 1 63 98 101 273 70 130 %SS 1 109 10 849 843 0 686 842 842 0 70 I 130 ' All target compounds to the Method Blank of this extraction batch were ND less than the method RL with the following exceptions NONE MS=Matrix Spike MSD=Matnx Spike Duplicate LCS=Laboratory Control Sample LCSD=Laboratory Control Sample Duplicate,RPD=Relative Percent Deviation %Recovery=100"(MS-Sample)/(Amount Spiked) RPD=100*(MS- MSD)I((MS+MSD)/2) .MS and I or MSD spike recoveries may not be near 100%or the RPDs near 0%it a)the sample is inhomogenous AND contains significant concentrations of analyte relative to the amount spiked or b)if that specific sample matrix interferes with spike recovery NIA=net enough sample to perform matrix spike and matrix spike duplicate ' NR=analyte concentration in sample exceeds spike amount for soil matrix or exceeds 2x spike amount for water matrix or sample diluted due to high matrix or analyte content Laborato extraction solvents such as methytene chloride and acetone may occasionally appear in the method blank at low levels iDHS Certification No 1644 _QA/QC Officer