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110 god Avenue South,#1]7 Pacheco CA 94553-5560 <br /> WCampbell Analytical Inc Telephone 925-798 1620 Fax 925-798-1622 <br />' http Ilwww mccabell coni,E-mail mom mcca bell com <br /> QC SUMMARY REPORT FOR SW8021B/8015Cm <br /> Matrix W WorkOrder 0309193 <br />' EPA Method SW8021B/B015Cm Extraction SW5030B BatchlD 8473 Spiked Sample ID 0309188-OOIA <br /> Sample Spiked MS' MSD* MS-MSD' LCS I LCSD 'LCS-LCSD Acceptance Cntena(%) <br />' P9lL Ng/L %ReC % Rec % RPD % ReC .%ReC %RPD Low High <br /> TPH(btex)£ ND 60 97 5 963 128 967 987 202 70 130 <br />' MTBE ND 10 997 997 0 104 949 872 70 130 <br /> Benzene ND 10 98 5 941 458 975 103 500 70 130 <br /> Toluene ND 10 986 933 547 98 102 398 70 130 <br />' Ethylbenzenc ND 10 101 956 550 99 1 100 124 70 130 <br /> Xylenes ND 30 100 993 0 669 100 103 328 70 130 <br />' %SS 103 100 103 101 220 999 102 195 70 130 <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 /> 1 <br /> MS=Matnx 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)1(MS+MSD)'2 <br /> MS and I or MSO 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 /> . E TPH(btex)=sum of BTEC 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 soli matrix or exceeds 2x spike amount for water matrix or sample diluted due to high matrix or <br /> janalyte content <br />