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110 2nd Avenue South #D7 Pacheco,CA 94553-5560 <br /> N1cCampbell Analytical Inc E Telephone 925 798-1620 Fax 925-798-1622 <br /> http/Iwww mccampbell com E-maul mam@mccampbell com <br /> QC SUMMARY REPORT FOR SW8021B/8015Cm <br /> Matrix W WorkOrder 0207221 <br /> EPA Method SW8021 B/8015Cm Extraction SW5030B BatchlD 2984 Spiked Sample ID NIA <br /> Sample Spiked MS' MSD" IMS-MSD*j LCS LCSD iLCS-LCSDIAcceptance Criteria(%) <br /> Compound — 4-- _ r f I r <br /> Ng/L Ng/L %Rec %Rec %RPD %Rec %Rae %RPD Low High <br /> TPH(gas) N/A 60 N/A N/A N/A 92 5 88 8 409 80 120 <br /> MTBE NIA 10 N/A N/A N/A 83 1 852 244 80 120 <br /> Benzene N/A 10 N/A vN/A NIA 85 3 84 1 130 80 120 <br /> Toluene Y _ NIA 10 N/A N/A NIA 895 87 7 199 80 120 <br /> Ethylbenzene N/A 10 N/A N/A N/A 92 1 901 225 80 120 <br /> Xylenes N/A 30 N/A N/A N/A 94 3 90 470 80 120 <br /> %SS N/A 100 N/A NIA N/A 97 1 968 0 332 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 /> NONE <br /> Q <br /> MS=Matrix Spike MSD=Malnx Spike Duplicate LCS=Laboratory Control Sample LCSD=Laboratory Control Sample Duplicate RPD=Relative Percent <br /> Deviation <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 matrix or exceeds 2x spike amount for water matrix or sample diluted due to high matrix or <br /> analyte content <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 the amountspiked orb if that specific sample matrix interferes with s ike recovery <br />