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i110 2rd Avenue South ND7 Pacheco CA 94553-5560 <br /> [:7McCampbell Analytical Inc Telephone 925 798-1620 Fax 925-798-1622 <br /> F77:1tp#www mecampbell corn E-mail mam r@mccampWl com <br /> QC SUMMARY REPORT FOR SW8021B/8015Cm <br /> i <br /> Matrix W WorkOrder 0303365 <br />' EPA Method SW8021 B/8015Cm Extraction SW5030B BatchlD 6260 Spiked Sample ID 0303365-003A <br /> Sample Spiked MS" MSD` MS-MSD" LCS LCSD LCS-LCSD Acceptance Crttena(%) <br /> Compound <br /> Pg/L pg/L %Rec %Rec %RPD %Rec %Rec %RPD I Low High <br /> TPH(gas) ND 60 112 103 8 16 104 922 120 80 120 <br /> MTBE ND 10 978 918 628 100 982 1 93 80 120 <br /> Benzene ND 10 106 992 636 99 1 101 194 80 120 <br />' Toluene ND 10 945 902 465 902 907 0 487 80 120 <br /> Ethylbenzene ND 10 105 101 397 99 5 101 139 80 120 <br /> Xylenes ND 30 100 933 690 893 933 438 80 120 <br /> i %SS 991 100 994 977 1 74 975 979 0 372 80 120 <br /> All target compounds to the Method Blank of this extraction batch were ND less than the method RL with the following exceptions <br /> ' NONE <br /> 1 <br /> 1 <br /> i <br /> r <br /> MS=Matnx Spike,MSD=Matrix Spike Duplicate LCS=Laboratory Control Sample LCSD=Laboratory Control Sample Duplicate RPD=Relative Percent <br /> Develop <br /> NIA=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 /> Recovery=100•(MS-Sample)!(Amount Spiked) RPD=100"(RAS—MSD)!(MS+MSD)•2 <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 orb if that a ec fic sam le matrix interferes with spike recovery <br />