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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 I/www mocampbetl corn E mail main@mccampbell corn <br /> • QC SUMMARY REPORT FOR SW8021B/8015Cm <br /> Matrix W WorkOrder 0207165 <br /> ' EPA Method SW8021 B/8015Cm Extraction SW5030B BatchlD 2899 Spiked Sample ID N/A <br /> Sample Spiked MS" MSD' MS-MSD' LCS LCSD LCS-LCSD Acceptance Criteria N <br /> Compound <br /> ' <br /> pg/L. pg/L %Rec %Rec %RPD %Rec %Rec %RPD Low High <br /> T ?(gas) NIA 60 N/A N/A N/A 947 959 123 80 120 <br /> t MTBE N/A 10 N/A N/A NIA 959 102 606 80 120 <br /> Benzene NIA 10 N/A N/A N/A 102 108 557 80 120 <br /> Toluene NIA 10 N/A N/A N/A 109 114 504 80 120 <br /> ' Ethylbenzene N/A 10 NIA N/A N/A 106 108 2 13 80 I20 <br /> Xylenes N/A 30 N/A N/A N/A 107 107 0 80 120 <br /> ' %SS N/A 100 N/A N/A N/A 106 106 0 234 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 /> 1 <br /> 1 n <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 matnx 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.(MS—MSD)I(MS+MSD)"2 <br /> MS and/or MSA spike recoveries may not be near 100%or the RPDs near 0%if a)the sample is inhomogenous AND contains significant concentratons of <br /> ' anal to relative to the amount spiked or b)if that specific sample matrix interferes with spike recovery <br /> , <br />