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— 110 2nd Avenue South #D7 Pacheco CA 94553 5560 <br /> McCampbell Analytical Inc Telephone 925-798-, E- Fax 925-745-1622 <br /> bnpj/www mcc bell coin E-mad mainhell cnm <br /> i QC SUMMARY REPORT FOR SW8021B/8015Cm <br />' WorkOrder 0305262 <br /> Matrix W <br />' EPA Method SW8021B/8015Cm Extraction SW50306 BatchlD 6935 Spiked Sample ID 0305262-007A <br /> Sample Spiked MS* MSD' MS-MSD* LCS LCSD LCS-LCSD Acceptance Criteria(%) <br /> y Compound <br /> pg/L pg/L % Rec % Rec % RPD %Rec % Rec %RPD Low High <br />' TPH(btex)r ND 60 961 956 0 522 97 7 969 0 824 70 130 <br /> MTBE ND 10 969 101 411 91 9 941 242 70 130 <br />' Benzene ND 10 91 9 93 6 178 92 7 915 1 35 70 130 <br /> Toluene ND10 97 973 0 285 964 95 9 0 598 70 130 <br />' Ethylbenzene ND 10 96 2 97 6 138 98 3 95 7 266 70 130 <br /> Xylenes ND 30 100 100 0 103 100 328 70 130 <br /> °f°SS 100 1 100 1 98 7 996 0 854 98 1 97 6 0 599 80 120 <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=Matrix Spike MSD=Matrix Spike Duplicate LCS=Laboratory Control Sample LCSD=Laboratory Control Sample Duplicate RPD=Relative Percent <br /> Deviation <br /> %Recovery=100*(MS-Sample)I(Amount Spiked) RPD=100*(MS—MSD)I(MS+MSD)*2 <br /> ' *MS and 1 or MSD spike recoveries may not be near 100%or the BPDs near 0%if a)the sample is inhomogenous AND contains significant concentrations of <br /> analyte relative to the amount spiked,or b)if that specAc sample matrix interferes with spike recovery <br /> £TPFI(btex)=sum of STEX 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 soil matrix or exceeds 2x spike amount for water matrix or sample diluted due to high matrix of <br /> analyte content <br />