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]l0 2nd Avenue South #t77,Pacheco CA 94553-5560 <br /> McCampbell Analytical Inc Telephone 925-79&1620 Fax 925-798-1622 <br />' bttp//www mccampbell com E malt mainQmccampbell com <br /> QC SUMMARY REPORT FOR SW8021B/8015Cm <br /> Matrix W WorkOrder 0303275 <br />' EPA Method SW8021B/8015Cm Extraction SW5030B BatchlD 6208 Spiked Sample ID 0303275-004A <br /> Compound Sample Spiked MS' MSD' MS-MSD' LCS I LCSD LCS-LCSD Acceptance Criteria(%) <br />' ug/L pg/L % Rec %Rec %RPD %Rec %Rec %RPD Low I High <br /> TPH(gas) ND 60 108 976 101 102 115 120 80 120 <br />' MTBE ND 10 101 982 3 11 93 916 1 50 80 120 <br /> Benzene ND 10 103 104 0 757 104 102 1 62 80 120 <br />' Toluene ND 10 988 95 7 3 19 927 92 0 764 80 120 <br /> Ethylbenzene ND 10 105 991 5 53 101 104 277 80 120 <br /> Xylenes ND 30 100 87 3 135 93 967 387 80 120 <br />' 0/oSS 987 100 978 100 254 101 999 187 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 /> 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 /> 'IVIS and I or MSD spike recovenes 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 amountspiked or b)if that s eafic sample matrix interferes with spike recovery <br />