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4 <br /> 110 2nd Avenue South 4D7 Pacheco CA 94553-5560 <br /> MCCampbell Analytical Inc Telephone 925-798-1620 Fax 925-798-1622 <br /> * htip Ilwww mccampbell corn E mail main@mccampbell com <br /> QC SUMMARY REPORT FOR SW8021B/8015Cm <br /> Matrix W WorkOrder 0208519 <br /> EPAMethod SW8021B/8015Cm Extraction SW5030B BatchlD 3748 Spiked Sample ID 0208520-001A <br /> Sample Spiked MS* MSD' MS-MSD* LCS LCSD LCS-LCSD Acceptance Criteria(%) <br /> Compound <br /> Ng/L pg/L %Rec %Rec %RPD %Rec %Rec %RPD Low High <br /> TPH(gas) ND 60 111 111 00841 102 997 202 80 120 <br /> MTBE ND 10 106 974 826 94 lol 722 80 120 <br /> Benzene ND t0 106 976 8 19 102 109 6 12 80 120 <br /> Toluene ND 10 101 941 7 34 109 116 6 04 80 120 <br /> Ethylbenzene ND 10 107 101 544 107 113 554 80 120 <br /> Xylenes ND 30 103 967 667 107 113 606 80 120 <br /> %SS 893 100 104 998 4 32 100 103 300 80 120 <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 /> NIA=not enough sample to perform matrix spike and matrix spike dupheate <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 /> %Recovery=loo*(MS-Sample)I(Amount Spiked) RPD=100*(MS--MSD)I(MS+MSD)'2 <br /> *MS and I or MSD spike recoveries may not be near 100%or the BPDs 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 />