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110 2nd Avenue South,#D7 Pacheco CA 94553 5560 <br /> Inc.4 McCampbell Analytical, Telephone 925 798-1620 Fax 925 798-1622 <br /> Website www mccampbell com E marl mainQmccampbell com <br /> QC SUMMARY REPORT FOR SW8021B18015Cm <br /> W 0 Sample Matrix Water QC Matrix Water WorkOrder 0412516 <br /> EPA Method SW8021818015Cm Extraction SW5030B BatchlD 14491 Spiked Sample ID 0412516-027A <br /> Sample Spiked MS* MSD* MS-MSD' LCS LCSD LCS-LCSD Acceptance Criteria(%) <br /> Analyte <br /> pg/L. NgIL % Rec % Rec %RPD % Rec % Rec % RPD MS/MSD LCS/LCSD <br /> TPH(btex)E ND 60 998 90 8 l 11 992 93 9 550 70- 130 70-130 <br /> MTBE ND 10 94 904 3 84 937 943 0 615 70-130 70-130 <br /> Benzene ND 10 904 895 0 928 100 976 238 70-130 70-130 <br /> Toluene ND 10 94 934 0 651 992 973 194 70-130 70-130 <br /> Ethylbenzene ND 10 964 95 8 0 606 103 999 3 36 70- 130 70-130 <br /> Xylenes ND 30 99 95 7 342 913 903 1 10 70- 130 70-130 <br /> %SS L i 1 10 97 97 0 106 F 107 136 70- 130 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)/2) <br /> *MS 1 MSD spike recoveries and/or%RPD may fall outside of laboratory acceptance criteria due to one or more of the following reasons a)the sample is <br /> inhomogenous AND contains significant concentrations of analyte relative to the amount spiked or b)the spiked sample's matrix interferes with the spike <br /> recovery <br /> £TPH(btex)=sum of BTEX areas from the FID <br /> #cluttered chromatogram sample peak coelutes with surrogate peak <br /> NIA=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 /> analyte content <br /> DHS Certification No 1644 �QA/QC Officer <br />