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110 2nd Avenue South #D7 Pacheco CA 94553-5560 <br /> McCampbell Analytical uric Telephone 925-798-1620 Fax 925-798-1622 <br /> htip//www rmcarmbell com E-mail tnamcaaocll com <br /> • QC SUMMARY REPORT FOR SW8021B/8015Cm <br /> Matrix W WorkOrder 0306602 <br /> EPA Method SW8021B18015Cm Extraction SW5030B BatchlD 7561 Spiked Sample ID 0306595-001A <br /> Sample Spiked MS* I MSD' MS-MSD' LCS LCSD LCS-LCSD Acceptance Criteria(%) <br /> pg/L }1g/L %Rec % Rec % RPD %Rec % Rec %RPD Low High <br /> TPH(btex) ND 60 too 108 779 108 111 290 70 130 <br /> MTBE 1253 10 NR NR NR 954 985 312 70 130 <br /> Benzene ND 10 113 112 0 677 84 85 6 197 70 130 <br /> Toluene ND to 103 103 0 867 88 9 247 70 130 <br /> Ethylbenzene ND t0 109 109 0 104 108 312 70 130 <br /> Xylenes ND 30 100 100 0 100 100 0 70 130 <br /> %SS 104 100 105 104 0 995 949 932 1 85 70 130 <br /> All target compounds to the Method Blank of this extraction batch were ND less than the method RL with the following exceptions <br /> NONE <br /> I <br /> I <br /> I <br /> I <br /> MS=Matra Spike MSD=Matrix Spike Duplicate,LCS=Laboratory Control Sample LCSD=Laboratory Control Sample Duplicate RPD=Relative Percent <br /> Deviation <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 RPOs 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)=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 /> NINR=analyte concentration In sample exceeds spike amount for sod matrix or exceeds 2x spike amount for water matrix or sample diluted due to high matrix or <br /> a content <br /> I <br />