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110 2nd Avenue South #D7 Pacheco CA 94553-5560 <br /> McCalTlpbell Analytical Inc Telephone 925798-1620 Fax 925-798-1622 <br /> http/Iwrvw mecamphell cam E-mai] mam ccampbell com <br /> QC SUMMARY REPORT FOR SW8021B18015Cm <br /> Matrix W WorkOrder 0302377 <br /> EPA Method SW8021 BI8015Cm Extraction SW5030B BatchlD 6028 Spiked Sample ID 0302377-001A <br /> Compound <br /> Sample Spiked MS* MSD* MS-MSD* LCS LCSD LCS-LCSD Acceptance Criteria <br /> uglt Ng/L % Rec %Rec %RPD %Rec %Rec % RPD I Low High <br /> TPH(gas) ND 60 111 109 217 113 114 133 80 120 <br /> MTBE ND 10 846 822 286 812 848 436 80 120— <br /> Benzene ND 10 103 104 119 101 103 215 80 120 <br /> Toluene ND 10 100 100 0 437 104 106 199 80 120 <br /> Ethylbenzene ND 10 109 1 109 03-72 103 105 204 80 120 <br /> Xylenes ND 30 110 110 0 110 110 0 80 120 <br /> %SS 101 100 103 106 3 IS 91 5 92 0 509 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 /> 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 and matrix spike duplicate <br /> 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 <br /> analyte content <br /> %Recovery=100*(MS-Sample)I(Amount Spiked) RPU=100"(MS—MSD)I(MS+MSD)*2 <br /> MS and I 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 <br /> analyte relative to the amount spiked or b)if that specific sample matrix interferes with spike recovery <br />