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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 niceampbell conn E-mail main@niccampbellcom <br /> QC SUMMARY REPORT FOR SW8021B/8015Cm <br /> Matnx W WorkOrder 0406242 <br /> EPA Method SW8021 BI8015Cm Extraction 5W50306 BatchlD 11862 Spiked Sample ID 0406242-040A <br /> Sample Spiked MS* MSD* MS-MSD* LCS LCSD LCS-LCSD Acceptance Criteria(%) <br /> pg/L pg/L %Rec %Rec %RPD %Rec %Rec % RPD Low High <br /> TPH(btex)f ND 60 965 962 1 0 350 977 984 0 726 70 130 <br /> MTBE ND 10 108 104 434 112 114 153 70 130 <br /> Benzene ND 10 116 109 5 66 113 112 1 00 70 130 <br /> Toluene ND 10 110 I04 542 108 108 0 70 1 130 <br /> Ethylberizene ND 10 113 107 553 1 111 110 0 508 70 130 <br /> Xylenes ND 30 100 953 478 963 95 7 0 694 70 130 <br /> %SS 87 3 l0 107 106 0 389 105 105 0 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 /> • <br /> MS=Matrix Spike MSD=Matrix Spike Duplicate,LCS=Laboratory Control Sample LCSD=laboratory Centro[Sample Duplicate RPD=Relative Percent <br /> Deviation <br /> %Recovery=100*(MS-Sample)/(Amount Spiked),RPO=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 relative to the amount spiked or b)if that specific sample matrix interferes with spike recovery <br /> £TPi(btex)=sum of BTEX areas from the FID <br /> #cluttered chromatogram,sample peak coelutes with surrogate peak <br /> N/A=not applicable or 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 /> analytia content <br /> DHS Cernficatton No 1644 QA/QC Officer <br />