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' 110 2nd Avenue South 4D7,Pacheco CA 94553-5560 <br /> McCampbell Analytical Inc Telephone 925-798-1620 Fax 925-798-1622 <br />' http/hvww mccampbell coin E-mail main©mccampbell coin <br /> QC SUMMARY REPORT FOR SW8021S18015Cm <br /> Matrix W WorkOrder 0208518 <br />' EPA Method SW8021 B/8015Cm Extraction SW5030B BatchlD 3748 Spiked Sample ID 0208520-001A <br /> Sample Spiked MS' MSD' MS-MSD' LCS LCSD LCS-LCSDIAcceptance Criteria(%) <br /> Compound ----- -- -- - <br />' pg/L }aglL % Rec %Rec %RPD % Rec %Rec %RPD I Low 1 High <br /> TPH(gas) N1 60 III 111 00841 102 997 202 80 120 <br /> MTBE - ND 10 106 974 826 94 101 722 80 120 <br /> Benzene ND 10 106 976 8 19 102 109 6 12 80 120 <br /> Toluene ND 10 101 941 734 109 116 - 604 80 120 <br />' Ethylbenzene ND 10 107 lot 544 107 113 5 54 80 120- <br /> -- - -i <br /> Xylenes ND 30 103 967 6 67 107 113 606 80 120 <br />' %°SS 893 100 104 998 432 100 103 3 00 80 120 <br /> All target compounds in the Method Blank ofthis extraction batch were ND less than the method RL with the following exceptions <br /> NONE <br /> 1 <br /> 1 <br /> 1 <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 matnx 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 /> %Recovery=100'(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 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 />