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^f 1102nd Avenue South 4D7 Pacheco CA 94553-5560 McCampbell Analytical, Inc. Idephone 925-798 1620 Fax 925 798-1622 Websile wN-,k mccampbell tom F mad mIin umccampbell com • QC SUMMARY REPORT FOR SW8260B Matrix W WorkOrder 0407214 EPA Method SW8260B VExtraction SW5030B BatchlD 12370 Spiked Sample ID 0407210 008A Sample Spiked MS* MSD' iMS-MSD LCS LCSD LLCS-LCSD Acceptance Criteria(%) pg/L pg/L % Rec %Rec % RPD %Rec %Rec %RPD Low High tert-Amyl nwhyl ether(TAME) ND 10 95 5 922 356 923 91 I 1 34 70 130 t-Butyl alcohol(TBA) ND 50 909 90 1 0 827 999 103 i 1 78 70 130 1 2-Dibromoethane(EDB) ND 4 10 103 101 1 85 998 993 4 496 70 130 1 2 Dichloroethane(1 2-DCA) ND 10 120 118 1 98 112 HI 0 722 70 130 Dosopropyl ether(DIPE) — ND 10 125 122 1 94 116 115 0 996 70 130 Ethyl tort-butvl ether(ETBE) ND 10 118 115 224 111 110 0 926 70 130 Methvl-t-butyl ether(MTBE) ND 10 123 119 345 120 116 3 84 70 130 %SS2 995 l0 94 3 94 5 0 144 925 937 1 30 70 130 All target compounds in the Method Blank of this extraction batch were ND less than the method RL with the following exceptions NONE MS=Matrix Spike MSD=Matrix Spike Duplicate LCS=Laboratory Control Sample LCSD=Laboratory Control Sample Duplicate RPD=Re3ative Percent Deviation %Recovery=100*(MS Sample)I(Amount Spiked) RPD=100*(MS MSD)1((MS+MSD)12) *MS and 1 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 analyte relative to the amount spiked or b)if that specific sample matrix interferes with spike recovery NIA=not 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 Laboratory extraction solvents such as methylene chloride and acetone may occasionally appear in the method blank at low levels DHS Certification No 1644 �QA/QC Officer