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110 2nd Avenue South #D7 Pacheco CA 94553-5560 <br /> �VlcCampbell Analytical Inc Telephone 925-798-1620 Fax 925-798-1622 <br /> hltp//www mccampbell corn E-mail maingTccampbe11 com <br /> QC SUMMARY REPORT FOR SW8021B <br /> BatchlD 2388 Matrix W WorkOrder 0206149 <br />' EPA Method SW8021 B Extraction SW5030B Ext Date 6111102 Spiked Sample ID 0206149-008D <br /> Sample Spiked MIS` I MSD` MS-MSD' LCS LCSD LCS-LCSD Acceptance Criteria(%) <br /> Compound <br />' pg1L pg/L %Rec I %Rec %RPD %Rec %Rec %RPD Low High <br /> Chlorobenzene ND 10 101 101 0 167 102 103 049 70 130 <br />' 1,1-Mchloroethene ND 10 111 108 2 70 113 109 36 70 130 <br /> Trichloroethene ND 10 103 104 143 102 103 071 70 130 <br /> 0/0SS 908 10 90_8 94 345 907 916 1 0 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 /> lie <br /> 1 <br /> 1 <br /> MS=Matrix Spike MSD=Matrix Spike Duplicate LCS=laboratory Control Sample LCSD=Laboratory Control Sample Duplicate RPD=Relative Percent <br /> Deviation <br /> N/A=not enough sample to perform matrix spike or analyte concentration in sample exceeds spike amount <br /> %Recovery=100*(MS-Sample)!(Amount Spiked),RPD=100`(MS—MSD)/(MS+MSD)•2 <br /> 1 *MS and/or MSD spike recoveneS may not be near 100%or the RPDs near 0%if a)the sample is Inhomogenous AND contains significant conoentrahons of <br /> . analyte relative to the amount spiked or b)if that specific sample matrix interferes with spike recovery <br />' Laboratory extraction solvents such as methylene chloride and acetone may occasionally appear in the method blank at low levels <br />