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110 2nd Avenue South ##D7,Pacheco CA 94553-5560 <br /> McCampbell Analytical, Inc. Telephone 925-798-1620 Fax 925-798-1622 <br /> Website www mccampbell com E mail mam@rnccamTben com <br /> QC SUMMARY REPORT FOR SW8021B/8415Cm <br /> Matrix W WorkOrder 0405340 <br /> EPA Method SW8021 B/8015Cm Extraction SW5030B BatchlD 11609 Spiked Sample 1D 0405334-002A <br /> Sample Spiked MS' MSD' MS-MSD' LCS LCSD LCS-LCSD Acceptance Cntena <br /> pg/L pg1L %Rec %Rec %RPD % Rec %Rec % RPD Low High Y <br /> TPH(btex)£ ND 60 864 891 308 106 103 304 70 130 <br /> MTBE ND 10 90 117 25 8 105 106 139 70 130 <br /> Benzene ND 10 91 4 925 1 19 106 108 159 70 130 <br /> Toluene ND 10 91 9 93 8 200 107 107 0 70 130 <br /> Ethylbenzene ND 10 929 957 293 110 110 0 70 130 <br /> Xylenes ND 30 943 957 140 100 100 0 70 130 <br /> %SS 826 10 852 841 1 30 1 102 103 0 775 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 /> i <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'WS-Sample)1(Amount Spiked) RPD=100.(MS- MSD)/((MS+MSD)12) <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 orb)if that specific sample matrix interferes with spike recovery <br /> £TPH(btex)=sum of STEX areas from the FID <br /> #cluttered chromatogram sample peak coelutes with surrogate peak <br /> NIA not applicable or not enough sample to perforin matrix spike and matrix spike duplicate <br /> lNR=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 /> analvte content <br /> DHS Certification No 1644 QA/QC Officer <br />