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1102nd Avenue South #D7 Pacheco CA 94553-5560 <br />1 7 McCampbell Analytical Inc Telephone 925-798-1620 Fax 925-799-1622 <br />http //www mccampbell cam E-mail main@mccainpbelicom <br />0 QC SUMMARY REPORT FOR SW8021B/8015Cm <br />• <br />is <br />BatchlD 1350 <br />Matrix W <br />WorkOrder 0204288 <br />EPA Method SW8021 B/8015Cm Extraction SW5030B Ext Date 4/17/02 Spiked Sample ID <br />Compound <br />Sample <br />Spiked <br />MS• <br />MSD' <br />MS -MSD' <br />LCS <br />LCSD <br />LCS-LCSD <br />Acceptance Critena (%} <br />pg/L <br />pg/L <br />% Rec <br />% Rec <br />% RPD <br />% Rec <br />% Rec <br />% RPD <br />Low <br />High <br />TPH(gas) <br />N/A <br />60 <br />N/A <br />N/A <br />NIA <br />112 <br />111 <br />078 <br />70 <br />130 <br />MTBE <br />NIA <br />10 <br />NIA <br />N/A <br />NIA <br />889 <br />881 <br />089 <br />70 <br />130 <br />Benzene <br />NIA <br />10 <br />NIA <br />NIA <br />N/A <br />955 <br />974 <br />20 <br />70 <br />130 <br />Toluene <br />N/A <br />10 <br />N/A <br />N/A <br />N/A <br />995 <br />102 <br />29 <br />70 <br />130 <br />Ethylbenzene <br />N/A <br />10 <br />N/A <br />N/A <br />NIA <br />103 <br />104 <br />13 <br />70 <br />130 <br />Xylenes <br />NIA <br />30 <br />N/A <br />NIA <br />NIA <br />103 <br />103 <br />0 <br />70 <br />130 <br />%SS <br />102 <br />10 <br />N/A <br />NIA <br />N/A <br />100 <br />142 <br />1 7 <br />70 <br />130 <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 />MS = Matrix Spike MSD = Matrix Spike Duplicate, LCS = Laboratory Control Sample LCSD = Laboratory Control Sample Duplicate RPD = Relative Percent <br />Deviation <br />N/A = not enough sample to perform matrix spike, or analyte concentration in sample exceeds spike amount <br />% Recovery = 100 ' (MS -Sample) I (Amount Spiked), RPD = 100 . (MS — MSD) I (MS + MSD) • 2 <br />• MS and / or MSD spike recoveries may not be near 10046 or their RPDs near 0% if a) the sample is inhomogeneous AND contains significant concentrations of <br />analyze relative to the amount spiked, or b) if that specific sample matrix interferes with spike recovery <br />