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110 2nd Avenue South #D7 Pacheco CA 94553-5560 <br /> McCampbell Analytical Inc Telephone 925-798-1620 Fax 925-798-1622 <br /> Ihttp//www mecampbell corn E-mail morn n�mccarripbell cam <br /> QC SUMMARY REPORT FOR SW8021B/8015Cm <br /> BatchlD 2024 Matrix W WorkOrder 0205329 <br />' EPA Method SW8021 B/8015Cm Extraction SW5030B Ext Date 5123102 Spiked Sample ID 0205333-OOIA <br /> Sample Spiked MS* MSD' MS-MSD* LCS LCSD LCS-LCSD Acceptance Cntena(%} <br /> Compound <br />' pg/L pg/L %Rec %Rec %RPD %Rec %Rec %RPD Low High <br /> TPH(gas) ND 60 103 103 0 761 109 965 12 80 120 <br /> MTBE ND 10 83 1 834 044 882 889 079 80 120 <br />' Benzene ND 10 88 1 I 889 0 905 94 104 0 9 9 80 120 <br /> Toluene 1 025 10 94 2 € 87 7 643 103 112 8 4 80 120 <br />' Ethylbenzene ND 10 968 93 3 99 100 112 11 80 120 <br /> Xylenes 1 23 30 95 9 87 6 870 95 110 15 80 120 <br />' %SS 101 10 101 106 516 111 105 53 80 120 <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 /> I <br /> MS=Matrix Spike MSD=Matnx Spike Duplicate ICS=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 />' -MS and/or MSD spike recoveries may not be near 100%or their RPDs near 0%if a)the sample is inhomogeneous AND contains significant concentrations of <br /> analyze relative to the amount spiked or b)of that specific sample matrix interferes with spike recovery <br /> I <br />