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r' <br /> Sequoia 885 Jarvis Drive <br /> Morgan Hill,CA 95037 <br /> Analytical (408)776-9600 <br /> FAX(408)782-6308 <br /> I www.sequoialabs.com <br /> E F <br /> FURS Corporation[Arcola Proiect:ARCO#2168,Stockton,CA <br /> 2870 Gateway Oaks Dr.,Ste 300 NMOK0609 <br /> Project umber:GOC81-0010 <br /> Sacramento CA,95833 Project ManagerNernon P.Elarth Reported: <br /> 11/28/05 15:22 <br /> Volatile Organic Compounds by EPA Method 8260B -Quality Control <br /> FSequoia Analytical-Morgan Hill <br /> T Reporting Spike Source %REC RPD <br /> Analyte Result Limit Units Level Result %R$C Limits RPD Limit Notes <br /> 1 <br /> " Batch 5K16007-EPA 50351 EPA$260B <br /> Blank(5K16007-BLKII Prepared&Analyzed: 11/I6/OS <br /> tert-Amyl methyl ether ND 0.0050 mg/kg <br /> Benzene ND 0.0050 <br /> tert-Butyl alcohol ND 0.020 " <br /> Di-isopropyl ether ND 0,0050 <br /> 1,2-Dibromoethane(EDB) i <br /> ND 0,0050 � <br /> 1,2-Dichloroethane ND 0.0050 " <br /> Ethanol ND 0.10 " <br /> Ethyl tert-butyl ether „ IC i <br /> ND 0.0050 <br /> Ethylbenzene ND 0.0050 <br /> Methyl tert-butyl ether „ <br /> ND 0.0050 <br /> Toluene ND 0.0050 " <br /> Xylenes(total) ND 0.0050 <br /> Gasoline Range Organics(C4-C 12) ND 0.10 <br /> Surrogate:l,2-Dichloroethane-d4 0,00490 0.00500 <br /> 98 60-I25 <br /> Laboratory Control Sample(5K16007-BS1) Prepared&Analyzed: 11116/05 <br /> i. tert-Amyl methyl ether 0.0158 0.0050 mg/kg 0.0150 <br /> ]OS 80-130 <br /> Benzene 0.00511 0,0050 0.00516 99 65-125 <br /> tert-Butyl alcohol 0.145 0.020 " 0.143 101 80-165 <br /> Di-isopropyl ether <br /> F i 0.0161 0,0050 4.015] <br /> 107 85-115 <br /> 1,2-Dibromoethane(EDB) 0.0160 0.0050 0X149 <br /> 107 85-130 <br /> F 1,2-13ihloroethane 0.0180 0.0050 0.0147 <br /> Ethanol <br /> 0.196 010 122 63-124 <br /> 0.142 138 35-150 IC <br /> Ethyl tert-butyl ether 0.0162 <br /> 0.0050 0.0150 108 80-125 <br /> Ethylbenzene 0.00727 0.0050 0.00754 <br /> 96 80-135 <br /> Methyl tert-butyl ether 0.00825 0.0050 0.00702 <br /> 118 75-115 <br /> F <br /> HL � <br /> Toluene 0.0320 0.0050 0.0372 <br /> 86 85-125 <br /> Xylenes(total) 0.0398 0.0050 0,0412 <br /> 97 80-140 � <br /> Gasoline Range Organics(C4-C12) 0.514 0.10 0.440 <br /> 117 53-]26 <br /> Surrogate:1,1-Dichloroethane-d4 0.00531 <br /> 0.00500 106 60-125 <br /> i <br /> d <br /> FSequoia Analytical-Morgan Hill The results in this report ap 1 to the les an 1 <br /> PY e sam p analyzed in accordance with the chain of <br /> custody document.Unless otherwise stated,results are reported on a wet weight basis, l <br /> This analytical report must be reproduced in its entirety, <br /> F <br /> Page 5 of 9 4 <br /> F <br />