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110 2nd Avenue South,4D7,Pacheco CA 94553-5560 <br /> McCampbell Analytical Inc Telephone 925 798-1620 Fax 925-798-1622 <br /> h llwww mcc beu com E-mail mom c bell com <br /> QC SUMMARY REPORT FOR SW8021B/8015Cm <br /> Matnx W WorkOrder 0311087 <br /> EPA Method SW8021B/8015Cm Extraction SW5030B Batch[D 92135 Spiked Sample 1D 0311068-004A <br /> Sample Spiked MS* MSD* MS-MSD* LCS LCSD LCS-LCSD Acceptance Criteria{%) <br /> pg/L pg/L % Rec % Rec % RPD %Rec % Rec %RPD Low High <br /> TPH(btex)£ ND 60 104 106 1 56 108 111 233 70 130 <br /> MTBE ND 10 110 109 0 647 106 109 253 70 130 <br /> Benzene ND 10 110 fit 0 836 113 107 534 70 130 <br /> Toluene ND t0 104 105 0 278 308 101 597 70 130 <br /> Ethylbenzene ND 10 112 111 0 715 115 110 466 70 130 <br /> Xylenes ND 30 96 100 408 107 100 645 70 130 <br /> %SS 100 100 105 103 187 104 1 103 0 497 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 /> MS=Matrix Spike MSD=Matnx Spike Duplicate LCS=Laboratory Control Sample LCSD=Laboratory Central Sample Duplicate RPD=Refative Percent <br /> Deviation <br /> %Recovery=100*(MS-Sample)/(Amount Spiked) RPD=900'(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 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 /> NR=analyte concentration in sample exceeds spike amount for sod matrix or exceeds 2x spike amount for water matnx or sample diluted due to high matrix or <br /> analVte content <br />