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110 2nd Avenue South #177 Pacheco,CA 94553 5560 <br /> McCampbell Analytical Inc Telephone 925-798-1620 Fax 925-798 1622 <br /> http J/www mccanipbeil corn E mail main mccan bell com <br /> QC SUMMARY REPORT FOR SW8021 B/8015Cm <br /> 1 <br /> Matrix W WorkOrder 0309482 <br />' EPA Method SW8021818015Cm Extraction SW5030B BatchlD 8695 Spiked Sample 1D 0309466-o01A <br /> Sample Spiked MS* MSD* MS-MSD' LCS LCSD LCS-LCSD Acceptance Cntena(%) <br /> pg/L }tg/L %Rec %Rec %RPD %Rec %Rec %RPD Low High <br /> TPH(btex)£ ND 60 98 8 962 269 982 989 0 676 70 130 <br /> MTBE ND 10 107 944 129 96 100 4 17 70 130 <br />' Benzene ND 10 944 966 233 102 105 280 70 130 <br /> Toluene ND 10 95 4 971 180 938 97 333 70 130 <br />' Ethylbenzene ND 10 97 984 150 998 103 321 70 130 <br /> Xylenes ND 30 997 100 0 334 903 947 468 70 130 <br />' %SS 107 100 9917 100 0 773 104 104 0 70 I 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 /> 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)/(Amount Spiked) RPD=100*(MS—MSD)/(MS+MSD)*2 <br /> *MS and/or MSD spike recoveries may not be near 100%or the RPDs near O%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 matrix or exceeds 2x spike amount for water matrix or sample diluted due to high matrix or <br /> analyte content <br /> 1 <br />