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110 2nd Avenue South #D7,Pacheco,CA 94553-5560 <br /> McCamrbell Analytical Inc Telephone 925-798-1620 Fax 925 798-1622 <br /> http Ilwww mccampbetl coin E mail main mccampbett cam <br /> • QC SUMMARY REPORT FOR SW8021B/8015Cm <br /> Matrix W WorkOrder 0312216 <br /> EPA Method SW8021 B18015Cm Extraction SW5030B BatchlD 9654 Spiked Sample ID 0312215-009A <br /> Sample Spiked MS* MSD* MS-MSD LCS LCSD LCS-LCSD Acceptance Criteria(%) <br /> pg/L pg/L %Rec %Rec %RPD %Rec %Rec %RPD Low High <br /> TPH(btex)£ ND 60 957 965 0 834 939 933 0 559 70 130 <br /> MTBE ND 10 115 114 0 905 119 114 446 70 130 <br /> Benzene ND 10 104 103 1 76 115 108 624 70 130 <br /> Toluene ND t0 107 106 157 115 108 667 70 130 <br /> Ethylbenzene ND 10 106 105 1 53 114 107 614 70 130 <br /> Xylenes ND 30 107 107 0 113 107 6 06 70 I 130 <br /> %SS 101I00 108 107 0 965 I14 111 287 70 130 <br /> Alt target compounds to 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 /> %Recovery=100*(MS-Sample)!(Amount Spiked),RPD=100*(MS- MSD)f((MS+MSD)/2) <br /> *MS and I or MSD spike recoveries may not be near 100%or the RPDs near 0%it 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 /> . £TPN(btex)=sum of BTEX areas from the FID <br /> #cluttered chromatogram sample peak coelutes with surrogate peak <br /> NIA=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 />