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110 2nd Avenue South #D7 Pacheco,CA 94553-5560 <br />' McCamphell Analytical Inc 7 Telephone 925-798-1620 Fax 925-798 1622 <br /> h //www mccampbell com E-mail macairOMI cam <br />' QC SUMMARY REPORT FOR SW8021B/8015Cm <br /> Matrix W WorkOrder 0304252 <br />' EPA Method SW8021 B18015Cm Extraction SW5030B BatchlD 6591 Spiked Sample ID 0304263-007A <br /> Sample Spiked MS* MSD* MS-MSD* LCS LCSD LCS-LCSD Acceptance Criteria(%) <br /> Compound <br /> ug/L }tg/L %Rec %Rec %RPD %Rec % Rec %RPD Low High <br /> TPI4(btex)£ ND 60 100 102 146 101 102 0 816 80 120 <br />' MTBE ND 10 103 102 1 12 101 104 290 80 120 <br /> Benzene ND 10 97 5 962 1 36 95 9 95 8 0 151 80 120 <br />' Toluene ND 10 101 998 0 790 100 997 0 603 80 120 <br /> Ethylbenzene ND 10 101 100 0 440 101 t00 1 19 80 I20 <br />' Xylenes ND 30 107 107 0 107 103 317 80 120 <br /> %SS 100 100 98 498 0 554 968 985 1 74 80 120 <br /> All target compounds in the Method Blank of this extraction batch were ND fess than the method RL with the following exceptions <br /> NONE <br /> lie <br /> I <br /> MS=Matrix Spike MSD=Matrix Spike Duplicate LCS=Laboratory Control Sample LCSD=Laboratory Control Sample Duplicate RPD=Relabve Percent <br /> Deviation <br /> %Recovery= 100*(MS-Sample)I(Amount Spiked) RPD=100'(MS—MSD)/(MS+MSD)*2 <br /> *MS and I 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 amount spiked or b)if that specific sample matrix interferes with spike recovery <br /> ' £TPH(btex)=sum of BTEX areas from the FID <br /> #cluttered chromatogram sample peak coelutes 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 /> anatvto content <br />