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' 819 Striker Ave Ste 8 <br /> 11� <br /> Sacramento,CA 95834 <br /> 9600 <br /> Sequoia (916)921 9640 <br /> ' Analytical ww scq 6)921 0100 <br /> www sequoialabs com <br /> ' Blaes Environmental Project U-Haul S506334 <br /> 11311,1 3rd Ave Project Number 709-50 Reported <br /> Phoenix AZ,85003 Project Manager Greg Coffin 06/30/05 14 51 <br /> Gasoline\BTEXIOxygenates by EPA method 8260B - Quality Control <br /> Sequoia Analytical- Sacramento <br /> Reporting Spike Source %REC RPD <br /> Analyte Result Limit Units Level Result %REC Limits RPD Limn Notes <br /> ' Batch 5060372 -EPA 5030B P/T 1 EPA 8260B <br /> Laboratory Control Sample(5060372-13S3) Prepared 06/27/05 Analyzed 06/28/05 <br /> Methyl tent-butyl ether 43 1 050 ugll 432 100 60-140 <br /> ' Benzene 27 3 050 268 102 70-130 <br /> Toluene 158 050 152 104 70-130 <br /> Gasoline Range Organics(C4 C12) 1970 50 2200 90 70-130 <br /> ' Surrogate 12-DCA-d4 114 100 114 60-140 <br /> Surrogate Toluene-d8 104 10 0 104 60-140 <br /> Surrogate 4-BFB 105 100 105 60-140 <br /> ' Matrix Spike(5060372-MS1) Source S506334-15 Prepared 06/27/05 Analyzed 06/28/05 <br /> Methyl tert-butyl ether 457 050 ugll 432 0 630 Y04 60-140 <br /> Benzene 269 050 268 ND 100 70-130 <br /> Toluene 161 050 152 ND 106 70-130 <br /> ' as)line Range Organics(C4-C 12) 1900 50 2200 ND 86 60-140 <br /> Surrogate 12-DCA-d4 113 100 113 60-140 <br /> Surrogate Toluene-d8 100 100 100 60-140 <br /> ' Surrogate 4-BFB 111 100 111 60-140 <br /> Matrix Spike Dup(5060372-MSDI) Source 5506334-15 Prepared 06/27/05 Analyzed 06/28/05 <br /> Methyl tert-butyl ether 450 050 ug/1 432 0 630 103 60-140 2 25 <br /> Benzene 27 2 050 268 ND 101 70 130 1 25 <br /> Toluene 166 050 152 ND 109 70-130 3 25 <br /> Gasoline Range Organics(C4-C12) 1900 50 2200 ND 86 60 140 0 25 <br /> Surrogate 1 2-DCA-d4 11 5 „ 100 115 60-140 <br /> Surrogate Toluene-d8 106 100 106 60-140 <br /> Surrogate 4-BFB 11 1 100 111 60 140 <br /> ' Sequoia Analytical-Sacramento The results in this report apply to the samples analyzed in accordance with the chain of <br /> custody document Unless otherwise stated results are reported on a wet weight basis <br /> This analytical report must be reproduced in its entirety <br /> Page 29 of 37 <br />