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819 Striker Ave Ste 8 <br /> Sequoia Sacramento 9 <br /> 5834 <br /> (916)921-96009600 <br /> ,T� FAX(916)921-0106 <br /> Analytical www scquoialabs com <br /> Project Cardoza 5312195 <br /> Geological Technics,Inc <br /> Project Number 662 2 Reported <br /> 1101 7th Street <br /> !2124103 i7 0$ <br /> Modesto CA,95354 Project Manager Joseph Angulo <br /> ' Volatile Organic Compounds by EPA Method 8260B- Quality Control <br /> Sequoia Analytical-Morgan Hill <br /> ' Reporting Spike Source %REC RPD <br /> Analyte Result Limn Units Level Result %REC Limds RPD Limit Notes <br /> ' Batch 3L17007-EPA 5030B PIT <br /> Laboratory Controls Sample Du (3L17007-BSD2} Prepared 12/17/03 Analyzed 12/18/03 <br /> Methyl tert-butyl ether 867 050 ug/1 992 874 63-137 2 69 13 <br /> ' Benzene 567 050 " 640 896 78-124 341 12 <br /> Toluene 31 3 050 297 105 78-129 292 10 <br /> Gasoline Range Organics 410 50 _ 440 _ 93 2 70-113- 373 9 J <br /> Surrogate 1 2-Dichloroethane d4 564 500 113 78-129 <br /> ' Matrix Spike(3L17007-MSI) Source MML0507-04 Prepared 12/17103 Analyzed 12/18/03 <br /> Methyl tert-butyl ether 49600 500 ug/l 10000 41000 960 63-137 <br /> Benzene 9800 500 10000 ND 980 78-124 <br /> ' Toluene 9500 500 10000 ND 950 78-129 <br /> Surrogate 1 2-Drckloroethane-d4 559 500 112 78-129 <br /> Matrix Spike Dup(3L17007-MSD1) Source MML0507-04 Prepared 12/17/03 Analyzed 12/18/03 <br /> Methyl tert-butyl ether 48500 500 ug/l 10000 41000 750 63-137 224 13 <br /> Benzene 9640 500 " 10000 ND 964 78-124 165 12 <br /> Toluene <br /> 9010 500 10000 ND 90 1 78-129 529 10 <br /> ' Surrogate 1 2-Dichloroethane-d4 5 79 500 116 78-129 <br /> Batch 3LIS003-EPA 5030E P/T <br /> Blank(3LIS003-BLKI) Prepared&Analyzed 12/18/03 <br /> ' tert-Bury]alcohol ND 20 ug/l <br /> Methyl tert-butyl ether <br /> ND 0 50 <br /> Di-isopropyl ether ND 0 50 1' <br /> ' Ethyl tert-butyl ether ND 050 <br /> tert-Amyl methyl ether <br /> ND 0 50 " <br /> 1,2-Dibromoethane(EDB) ND 0 50 " <br /> ' Benzene ND 050 'f <br /> Toluene ND 050 <br /> Ethylbenzene ND 050 <br /> Xylenes(total) ND 050 <br /> ' Gasoline Range Organics ND 50 <br /> Surrogate 1,2-Dichloroethane d4 5 10 500 102 78-129 <br /> ' Sequoia Analytical-Sacramento The results nr 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 22 of 31 <br />