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110 21 d Avenue Soutli 4D7 Pacheco CA 94553 5560 <br /> McCampbell Analytical Inc Telephune 925-798-1620 Fax 925-798-1622 <br />' Imp//ww%% mccimpbell coin E mail m-tm©mccarttpbell com <br /> QC SUMMARY REPORT FOR SW802113/8015CI1x;< <br /> Matrix W WarkOrder 0211320 <br />' EPA Method SW8021B/8015Cm Extraction SW5030B BatchlD 4955 Spiked Sample ID NIA <br /> Compound <br /> Sample Spiked MS- MSD" IMS-MSD" LCS LCSD LCS-LCSDIAcceptance Criteria(%) <br />' pig/L i p,g/L I % Rec % Rec i %'RPD % Rec % Rec % RPD I Low High <br /> TPB(bas) N/A 60 N/A N/A N/A 997 111 108 80 120 <br /> MTBE N/A 10 N/A N/A N/A 809 85 1 486 80 120 <br />' Benzene N/A 10 N/A NIA �aN/A 96 ') 105 ' 827 80 120 <br /> Toluene NIA 10 N/A N/A N/A 99 7 108 945 80 120 <br />' Ethylbenzene N/A 10 N/A N/A N/A 98 107 1 841 i 80 _ 120 <br /> Xylenes N/A 30 N/A N/A N/A 99 3 110 l0 2 84 120 <br /> %SS N/A t00 NIA N/A N/A 90 7 93 4 291 I 80 _ 120 <br /> I <br /> All target compounds in the Method Blank of this extraction batch were ND less than the method RL with the tollowtng exceptions <br />' NONE <br /> I <br /> 1 <br /> MS=Matrix Spike MSD=Matrix Spike Duplicate LCS=Laboratory Control Sample LCSD=Laboratcry Control Sample Duplicate RPD=Relative Percent <br /> Deviation <br /> N/A=not enough sample to perform matrix spike and matrix spike duplicate <br /> NR=analyte concentration in sample exceeds spike amount for sod matrix or exceeds lac spike amount for water matrix or sample diluted due to high matrix or <br /> analyte content <br /> %Recovery=100'(MS Sample)/(Amount Spiked) RPO=100•(MS—MSD)I(MS+MSD)"2 <br /> 'MS and/or MSD spike recoveries may not be near 100%or the RPDs near 0%;f a)the sample is inhomogenous AND contains significant concentrations of <br /> analyte relative to the amount spiked or b)if that specific sample matnx interferes with spike recovery <br />