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i <br /> 1102nd Avenue South tlD7 Pacheco CA 94553-5550 <br /> McCampbell Analytical Inc Telephone 925-798-1620 Fax 925-798-1622 <br /> hstp 1/www mccampbell rcm F-mail main r2mccamnbell corn <br /> i QC SUMMARY REPORT FOR SW8021B/801SCm <br /> Matrix A WorkOrder 0210508 <br />' - EPA Method SW8021 B/8015Cm Extraction SW5030B BatchlD 4659 -- Spiked Sample ID N/A <br /> Sample Spiked MS' I MSD' MS-MSD"I LCS LCSD LCS-LCSD Acceptance Criteria(%) <br /> Compound I — <br />' pg/L pg/L %Ree %Rec %RPD %Ree %Rec % RPD Low High <br /> TPH(gas) N/A 60 N/A NIA NIA 104 114 992 80 120 <br />' MTBE NIA 10 N/A N/A N/A 902 845 654 80 120 <br /> Benzene N/A 10 N/A N/A N/A Ill 100 990 80 120 <br />' Toluene N/A 10 N/A N/A N/A 119 101 — 166 80 120 <br /> Ethylbenzene N/A 10 N/A N/A NIA 112 107 492 80 120 <br /> Xylenes N/A 30 N/A N/A NIA 110 107 3 08 80 120 <br />' %SS NIA 100 N/A N/A N/A 120 103 15 7 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 /> lie <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 matrix spike and matrix spike duplicate <br /> NR=anatyte concentration in sample exceeds spike amount for soil matrx 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)/(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 or b)if that specific sample matrix interferes with spike recovery <br />