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rs 110 2nd Avenue South,#D7,Pacheco CA 94553-5560 McCampbelI Analytical Inc Telephone 925-798-162D Fax 925-798-1fi22 h Ilwww mcc bell com trmail team ca bell com • QC SUMMARY REPORT FOR SW8260B Matrix W WorkOrder 0307492 EPA Method SW8260B Extraction SW5030B BatchlD 8003 Spiked Sample ID 0307491-002B Sample Spiked MS' MSD' MS-MSD" LCS LCSD LCS-LCSD Acceptance Cntena(%) WglL p1g/L %Rec % Rec %RPD % Rec %Rec %RPD Low High tent-Amyl methyl ether(TAME) ND 10 100 978 247 103 104 0 907 70 130 t-Butyl alcohol(TBA) ND 50 102 979 423 104 106 268 70 130 1 2-Dibromoethane(EDB) ND 10 116 116 0 115 117 155 70 130 1,2-Dtchloroethane(1,2-DCA) ND t0 117 116 1 03 114 116 171 70 130 Dnsoprepyl ether(RIPE) ND 10 117 115 184 115 116 108 70 130 Ethyl tert-butyl ether(ETRE) ND to 105 104 1 72 103 105 1 60 70 130 Methyl t-butyl ether(MTBE) 07121 10 109 105 296 106 107 0 645 700 130 %SSI 108 100 109 110 0 771 106 104 1 93 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 M5 W Matrix Spike MSD=Matrix 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)1(MS+MSD)'2 `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 . N/A=not enough sample to perform matnx 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 meth ene chloride and acetone ma occasiona[I a ear in the method blank at low levels