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110 2nd Avenue South,#D7 Pachew,CA 94553 5560 <br /> =4mcc <br /> alxlpbell Analytical Inc Telephone 925-798-1620 Fax 925-798-1622 <br />' h //www mccwnybal]com E-mail mam a mccartipbell com <br /> QC SUMMARY REPORT FOR SW8021 B18015Cm <br /> 1 <br /> Matnx W WorkOrder 0309193 <br />' EPA Method SW8021B18015Cm Extraction SW5030B BatchlD 8481 Spiked Sample ID 0309193-009A <br /> Sample Spiked MS` MSD- MS-MSD- LCS LCSD LCS-LCSD Acceptance Cntena(%) <br />' pg/L pg/L %Rec %Rec % RPD % Rec %Rec %RPD Law High <br /> TPH(btex)£ Nil 60 105 108 285 104 102 225 70 130 <br />' M 1 B L ND 10 966 103 6 17 983 93 9 459 70 130 <br /> Benzene ND 10 108 107 131 106 104 222 70 130 <br /> Toluene ND 10 995 976 1 86 974 955 1 99 70 130 <br />' Ethylbenzene ND 10 107 106 107 105 103 190 70 130 <br /> Xylenes ND 30 997 96 3 75 96 953 0 697 70 130 <br />' %SS 101 100 104 102 1 63 102 101 0 106 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 /> 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)1(Amount Spiked) RPD=100`(MS--MSD)/(MS+MSD)'2 <br /> MS and 1 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 felative 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 sod matrix or exceeds 2x spike amount for water matrix or sample diluted due to high matrix or <br /> ,analyte content <br />