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110 2nd Avenue South,#D7 Pacheco CA 94553-5560 <br /> Inc.McCampbell Analytical,, Telephone 925-798-1620 Fax 925-798-1622 <br /> Website www mccaupbell corn E mail main@,rmcamphell com <br /> QC SUMMARY REPORT FOR SW8021B/8015Cm <br /> Matrix W WorkOrder 0406242 <br /> EPA Method SW8021B/8015CM Extraction SW5030B BatchlD 11962 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 0 350 977 984 0 726 70 130 <br /> MTBE ND 10 108 104 434 112 114 1 53 70 130 <br /> Benzene ND 10 116 109 566 113 112 1 00 70 130 <br /> Toluene ND 10 110 104 542 108 108 0 70 130 <br /> Fthylbenzene ND t0 113 107 553 111 t I0 0 508 70 130 <br /> Xylenes ND 30 100 953 479 963 95 7 0 694 70 I 130 <br /> %SS 87 3 10 107 106 0389 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 /> 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)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,or b)if that specific sample matrix interferes with spike recovery <br /> Z TPH(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 /> analyte content <br /> DHS Certification No 1644 V QA/QC Officer <br />