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85 J <br /> rvis <br /> D— Sequoia SHiltaCA9,Drive <br /> Morgan 11i1I CA 95037 <br /> (408)776-9600 <br /> Analytical FAX(408)782-6308 <br /> www sequotalabs com <br /> 7Sac <br /> S Corporation rArcoll Protect ARCO#6100,Tracey,CA MOL0796 <br /> 0 Gateway Oaks Dr, Ste 300 Protect Number GOC 1 Y-0005 Reported <br /> ramento CA,95833 Project Manager Jay Johnson 01/16/06 16 27 <br /> Volatile Organic Compounds by EPA Method 8260B - Quality Control <br /> Sequoia Analytical - Morgan Hill <br /> Reporting Spike Source %REC RPD <br /> Analyte Result Limit Units Level Result %REC Limits RPD Limit Notes <br /> Batch 6AO4010-EPA 5030E PIT/EPA 8260B <br /> Laboratory Control Sample(6AO4010-BS2) Prepared&Analyzed 01/04/06 <br /> tert-Amyl methyl ether 132 050 ug/l 150 88 80-115 <br /> Benzene 524 050 5 16 102 65-115 <br /> tert-Butyl alcohol 150 20 143 105 75-150 <br /> Di-isopropyl ether 14 9 050 15 1 99 75-125 <br /> 1,2-Dibromoethane(EDB) 15 7 050 14 9 105 85-120 <br /> 1,2-Dtchloroethane 148 050 14 7 101 85-130 <br /> Ethanol 384 100 142 270 70-135 HL IC <br /> Ethyl tert-butyl ether 13 9 050 15 0 93 75-130 <br /> Ethylbenzene 747 050 754 99 75-135 <br /> Methyl tert-butyl ether 575 050 7 02 82 65-125 <br /> Toluene 397 0 50 372 107 85420 <br /> �,n <br /> (total) 37 9 0 50 41 2 92 �64 <br /> Range Organics(C4-C 12) 401 50 440 91 <br /> Surrogate 12-Dtchloroethane-d4 2 08 250 <br /> 83 60-135 <br /> Matrix Spike(6A04010-MSI) Source MOL0908-01 Prepared&Analyzed 01/04/06 <br /> tert-Amyl methyl ether 1370 50 ug/l 1500 ND 91 80-115 <br /> Benzene 3360 50 516 3200 31 65-115 BB,LN <br /> tert-Butyl alcohol 14100 2000 14300 ND 99 75-120 <br /> Di-isopropyl ether 1420 50 1510 ND 94 75-125 <br /> 1,2-Dibromoethane(EDB) 1610 50 1490 ND 108 85-120 <br /> 1,2-Dtchloroethane 1580 50 1470 ND 107 85-130 <br /> Ethanol 17400 10000 14200 ND 123 70-135 IC <br /> Ethyl tert-butyl ether 1430 50 1500 ND 95 75-130 <br /> Ethylbenzene 940 50 754 380 74 75-135 LN <br /> Methyl tert-butyl ether 911 50 702 270 91 65-125 <br /> Toluene 3620 50 3720 47 96 85-120 <br /> Xylenes(total) 3920 50 4120 830 75 85-125 LN <br /> Gasoline Range Organics(C4-C 12) 43700 5000 44000 10000 77 60-140 <br /> Surrogate 1 2-Dtchloroethane-d4 227 250 91 60-135 <br /> tlota Analytical-Morgan H111 The results to 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 17 of 19 <br />