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1 - - <br /> I 10 2nd Avenue South,#D7,Pacheco,CA 94553-5560 <br />' Aj McCampbell Analytical, Inc. Telephone 925-798-1620 Fax 925-798-1622 <br /> Website www mccampbell coin h:nail main@imccampbell com <br /> QC SUMMARY REPORT FOR SW8021B/8015Cm <br /> I <br /> Matrix W WorkOrder 0406066 <br />' EPA Method SW8021B/8015Cm Extraction SW5030B BatchlD 11828 Spiked Sample 1D 0406066-001A <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)': ND 60 100 98 I 240 101 996 167 70 130 <br />' MTBE ND 10 102 102 0 111 115 340 70 130 <br /> Benzene ND 10 105 105 0 113 116 2 71 70 130 <br />' Toluene ND 10 103 103 0 110 113 268 70 130 <br /> Ethylbenzene ND 10 103 105 240 113 114 1 03 70 130 <br /> Xylenes ND 30 90 7 94 7 432 100 100 0 70 1 130 <br /> I %SS 91 210 104 104 0 104 105 0 154 70 I 130 <br /> ENONE <br /> et compounds in the Method Blank of this extraction batch were ND less than the method RL with the following exceptions <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)12) <br /> I *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 /> £TPH(btex)=sum of BTEX areas from the FID <br /> I #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 soil matrix or exceeds 2x spike amount for water matrix or sample diluted due to high matrix or <br /> anal ea content <br /> DHS Cerhficatton No 1644 QA/QC Officer <br />