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1 <br /> 110 2nd Avenue South,ND7 Pacheco,CA 94553 5560 <br /> McCampbell Analytical Inc Telephone 925 798-1620 Fax 925-798-1622 <br />' httpJlwww nm bell com E mail rrsairiPmccampbell com <br /> QC SUMMARY REPORT FOR SW8021B/8015Cm <br /> Matrix W WorkOrder 0306567 <br /> tEPA Method SW8021B/8015Cm Extraction SW50308 BatchlD 7549 Spiked Sample ID 0306567-009A <br /> Sample Spiked MS* MSD* MS-MSD* LCS LCSD LCS-LCSD Acceptance Cnteria(%} <br />' lig/L Ng/L %Rec %Rec % RPD % Rec % Rec % RPD Low High <br /> TPH(btex)f: ND 60 104 104 0 101 101 0 70 130 <br />' MTBE ND 10 952 95 9 0 704 879 865 1 50 70 130 <br /> Benzene 1 448 10 77 76 8 0 217 88 9 868 239 70 130 <br />' Toluene ND 10 969 967 0 194 98 6 964 226 70 130 <br /> Ethylbenzene ND 10 105 105 0 107 105 187 70 130 <br /> Xylenes ND 30 107 107 0 110 107 3 08 70 130 <br />' %SS 104 100 101 101 0 103 101 154 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 /> I <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)/(MS+MSD)*2 <br /> *MS and!or MSD spike rewvenes may not b9 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 /> . £TPH(btex)=sum of STEX areas from the FID <br /> #cluttered chromatogram sample peak coeiutes with surrogate peak <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 matnx or exceeds 2x spike amount for water matrix or sample diluted due to high matrix or <br /> analyte content <br />