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r110 2nd Avenue South,#D7 Pacheco CA 94553-5560 <br /> McCampbell Analytical Inc Telephone 925-798-1620 Fax 925-79&1622 <br /> rhttp//www mccampbell com E-mail ma n@nccamphell com <br /> • QC SUMMARY REPORT FOR SW8021B/8015Cm <br /> r <br /> BatchlD 2498 Matrix W WorkOrder 0206275 <br /> rEPA Method SW8021 B/8015Cm Extraction SW5030B Ext Date 6118102 Spiked Sample ID 0206274-002A <br /> Compound Sample Spiked MS" MSD' MS-MSD' LCS LCSD LCS-LCSD Acceptance Critena(%) <br /> pg/L pg/L %Rec %Rec %RPD %Rec %Rec %RPD I Low High <br /> TPH(gas) ND 60 118 116 134 113 t l 1 1 0 80 120 <br /> r MTHE 5 492 10 953 93 157 808 812 040 80 120 <br /> Benzene ND 10 956 968 128 103 963 6 3 80 l20 <br /> r Toluene ND 10 102 104 147 101 98 3 2 80 120 <br /> Ethylbenzene ND 10 997 102 182 991 959 3 3 80 120 <br /> Xylenes ND 30 100 103 328 997 987 10 80 120 <br /> r %SS 105 t0 105 105 0 218 989 100 12 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 /> r NONE <br /> r <br /> r <br /> r <br /> r <br /> r <br /> r MS=Matrix Spike MSD=Mat.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 /> r %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 BPDs near 0%if a)the sample is inhomogeneous AND contains significant concentrations of <br /> analyze relative to the amount spiked,or b)if that specific sample matrix interferes with spike recovery <br /> r <br /> r <br />