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r^,► ^' BSinker Ave Ste 8 <br /> Sequoia Sacramento <br /> mento CA 95834 <br /> qW Analytical FAX(916)921 9600 <br /> (916)921 4100 <br /> www scquotalabs com <br /> Blaes Environmental Project U-Haul S506334 <br /> ' 1433 N 3rd Ave Project Number 709-50 Reported <br /> Phoenix AZ,85003 Project Manager Greg Coffin 06/30/05 14 51 <br /> Gasolinc\BTEXIOxygenates by EPA method 8260B - Quality Control <br /> ' Sequoia Analytical- Sacramento <br /> Reporting Spike Source %REC RPD <br /> Analyte Result Lunt Un%tb Level Result %RFC Limub RPD Limit Notes <br /> Batch 5060363 -EPA 5030B [P/TJ1 EPA 8260B <br /> Matrix Spike Dup(5060363-MSDI) Source 5506507-01 Prepared&Analyzed 06/24/05 <br /> ' Methyl tert-butyl ether 213 050 ug/l 200 ND 106 60-140 8 25 <br /> Benzene 202 050 200 ND 101 70-130 9 25 <br /> Toluene 175 0 50 200 ND 88 70-130 11 25 <br /> ' Surrogate 11 DCA-d4 IO 8 I, 100 108 60-140 <br /> Surrogate Toluene-d8 927 100 93 60-140 <br /> Surrogate 4-BFB 9 87 100 99 60-140 <br /> Batch 5060372 -EPA 5030B [PIT]I EPA 8260B <br /> Blank(5060372-BLKI) Prepared 06/24/05 Analyzed 06/25/05 <br /> 1,1-Dtchloroethane ND 050 ugA <br /> ' Ethanol ND 50 '1 <br /> Affert butyl alcohol ND 50 <br /> ethyl tent butyl ether ND 050 <br /> Di-isopropyl ether ND 050 " <br /> ' Ethyl tert-bury]ether ND 050 ; <br /> Tert-amyl methyl ether ND 050 <br /> 1,2 Dtchloroethane ND 050 " <br /> ' 1,2-Dtbromoethane(EDB) ND 0 50 <br /> Benzene ND 050 <br /> Ethylbenzene ND 050 <br /> Toluene ND 050 " <br /> ' Xylenes(total) ND 050 " <br /> Gasoline Range Organics(C4-C 12) ND 50 " <br /> Surrogate 12-DCA-d4 110 100 110 60-140 <br /> ' Surrogate Toluene-d8 9 68 100 97 60-140 <br /> Surrogate 4-BFB 106 ]Do 106 60-140 <br /> I <br /> Sequoia Analytical-Sacramento The results in this report apply to the samples analyzed to accordance with the chain of <br /> • custody document Unless otherwise stated result.%are reported on a wet weight basis <br /> This analytical report must be reproduced in its entirety <br /> 1 <br /> Page 27 of 37 <br />