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110 tad Avenue South,#D7,Pacheco CA 94553-5560 <br /> McCampbell Analytical, Inc. Telephone 925-798-1620 Fax 925 798-1622 <br /> 4 1 Website www mccampbell com E mail mamQmccampbcil com <br /> QC SUMMARY REPORT FOR SW8021B/8015Cm <br /> 1 <br /> Matrix W WorkOrder 0406264 <br />' EPA Method SW802IB/8015Cm Extraction SW5030B BatchfD 11980 Spiked Sample ID 0406264-019A <br /> Sample Spiked MS* MSD* MS-MSD* LCS LCSD LCS-LCSD Acceptance Cntena(%) <br /> Ng/L Ng/L % Rec % Rec %RPD % Rec % Rec %RPD Low High <br /> TPH(btex)E ND 60 993 988 1 0 502 983 979 0 414 70 130 <br /> MTBE ND 10 107 115 709 114 107 573 70 130 <br /> Benzene ND 10 107 116 811 108 107 0 636 70 130 <br /> Toluene ND 10 105 113 736 103 104 0 417 70 130 <br />' Ethylbenzene ND 10 107 115 781 108 107 0 172 70 130 <br /> Xylenes ND 30 95 3 100 4 7895 95 3 0 350 70 130 <br /> %SS 118 10 101 105 355 104 103 0 640 70 I 130 <br /> All target compounds to the Method Blank of this extraction batch were ND less than the method RL with the following exceptions <br />' NONE <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 /> %Recovery=100*(MS-Sample)I(Amount Spiked),RPD=100*(MS- MSD)I((MS+MSD)12) <br />' *MS and/or MSD spike recovenes may not be near 100%or the BPDs 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 /> £TPH(btex)=sum of BTEX areas from the FED <br /> #cluttered chromatogram sample peak coelutes with surrogate peak <br /> WA=not applicable or not enough sample to perform matrix spike and matnx spike duplicate <br /> lNR=analy le 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 /> DHS Certification No 1644 <br /> A/QC Officer <br />