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110 2nd Avenue South ffD7,Pacheco,CA 94553-5560 <br /> McCampbell Analytical Inc L- Telephone 925-798-1620 Fax 925-798 1622 <br /> http//www mccampbelI eom E mail mam n ccampbell cam <br /> QC SUMMARY REPORT FOR SW8021B/8015Cm <br /> Matrix W WorkOrder 0208372 <br /> EPA Method SW8021 B/8015Cm Extraction SW50303 BatchlD 3621 Spiked Sample ID 0208369-005A <br /> Sample Spiked MS* MSD* MS-MSD' LCS LCSD LCS-LCSD Acceptance Criteria(%) <br /> Compound <br /> �rglL }tglL %Rec %Rec %RPD %Rec %Rec %RPD Low High <br /> TPH(gas) ND 60 93 928 0 288 964 967 0311 80 120 <br /> MTBE ND 10 973 942 3 19 88 944 697 80 120 <br /> Benzene =ND==10==108==98 6==9 11==104==1!1==7 20==80==120=_ <br /> Toluene ND 10 115 t03 109 107 Its 9 55 80 120 , <br /> Ethylbenzene ND 10 113 105 766 107 115 7 82 80 120 <br /> Xylenes ND 30 113 103 923 103 113 9 23 80 120 <br /> %SS 994 100 112 103 849 113 110 224 80 120 <br /> Ail 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 /> NIA=not enough sample to perform matrix spike and matrix spike duplicate <br /> NR=analyte concentration in sample exceeds spike amount for soil matrix of exceeds 2x spike amount for water matrix or sample diluted due to high matrix or <br /> anatyte content <br /> i <br /> %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 the RPDs near 0%if a)the sample is inhomogenous_AND contains significant concentrations of <br /> analyte relative to ttie amount spiked or b)if chat specific sam le matrix interferes with spike recovery <br />