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11 D 2nd Avenue South #D7,Paeheco CA 94153-5560 <br /> McCampbell Analytical Inc Telephone 925-798-1fi20 1•ax 925-798.1b22 <br /> h !lwww mccampbell com t-mail main�u Campbell com <br /> • QC SUMMARY REPORT FOR SW8021B/80150m <br /> Matrix W WorkOrder 0310498 <br /> EPA Method SW8021B18015Cm Extraction SW60306 BatchlD 9156 Spiked Sample 10 0310497-006A <br /> Sample Spiked MS` MSD' MS-MSD' LCS LCSD LCS-LCSD Acceptance Cntena(°k} <br /> pg/L pg/L %Rec %Rec % RFD %Rec % Rec %RPD Low High <br /> TPH(btex)£ ND 60 120 121 0 721 108 107 0 423 70 130 <br /> MT13E ND 10 98 5 994 0 935 946 953 0 717 70 130 <br /> Benzene 062 10 106 106 0 95 7 95 3 0 462 70 130 <br /> Toluene 1 19 10 107 106 0 800 994 992 0 196 70 130 <br /> Ethylbenzene ND 10 120 119 129 112 111 0 578 70 130 <br /> Xylenes 224 30 103 103 0 107 100 645 70 130 <br /> %SS 108 100 107 1 107 1 0 101 100 0 718 70 130 <br /> All target compounds in the Method Blank ofthis extraction batch were ND less than the method RL with the following exceptions <br /> NONE <br /> • <br /> MS=Matrix Spike,MSD=Matrix Spike Duplicate LCS=Laboratory Control Sample,LCSD=Laboratory Control Sample Duplicate RPD=Retative Percent <br /> Deviation <br /> %Recovery=100`(MS-Sam pie)/(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%it 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)a sum of BTEX areas from the FID <br /> #cluttered chromatogram sample peak coelutes with surrogate peak <br /> NIA=not enough sample to perform matrix spike and matrix spike duplicate <br /> NR=analyte conceniratian m sample exceeds spike amount for sod matrix or exceeds 2x spike amount for water matmc or sample diluted due to high matrix or <br /> anal a content <br />