Laserfiche WebLink
1455 McDowell Blvd North Ste <br /> Sequoia Petaluma CA 949544 <br /> Analytical (707)792-1865 <br /> FAX(707)792-0342 <br /> www sequoialabs com <br /> URS Corp-Sacramento Project Arco Site 2093,Tracy,CA P409398 <br /> 2870 Gateway Oaks Drive Suite 300 Project Number Intrim-50265 Reported <br /> Sacramento CA,95833 Project Manager Vernon P Elarth 10/05/04 15 26 <br /> Volatile Organic Compounds by EPA Method 8260B - Quality Control <br /> Sequoia Analytical- Petaluma <br /> Reporting Spike Source %REC RPD <br /> Analyte Result Limit Units Level Result %REC Limits RPD Limit Notes <br /> Batch 4100058-EPA 5030B waters/EPA 8260B <br /> Blank(4100058-BLKI) Prepared&Analyzed 10/04/04 <br /> Tert-amyl methyl ether ND 10 ug/1 <br /> Benzene ND 050 " <br /> Tert-butyl alcohol ND 20 " <br /> Di-isopropyl ether ND 10 " <br /> 1,2-Dibromoethane(EDB) ND 050 " <br /> 1 2-Dichloroethane ND 050 " <br /> Ethanol ND 100 " <br /> Ethylbenzene ND 0 50 " <br /> Ethyl tert-butyl ether ND 10 " <br /> Methyl tert-butyl ether ND 050 " <br /> Toluene ND 050_JCy " <br /> lens(total) ND 050 " <br /> agate Dibromofluoromethane 442 500 88 84-122 <br /> Surrogate 12-Dichloroethane-d4 423 5 00 85 74-135 <br /> Surrogate Toluene-d8 542 500 108 84-119 <br /> Surrogate 4-8romofluorobenzene 513 Soo 103 86-119 <br /> Laboratory Control Sample(4100058-BS1) Prepared&Analyzed 10/04/04 <br /> Tert-amyl methyl ether 106 10 ug/I 100 106 78-117 <br /> Benzene 1 11 050 100 111 81-118 <br /> Tert-butyl alcohol 198 20 200 99 60-147 <br /> Di-isopropyl ether 106 10 1 00 106 70-125 <br /> 1,2-Dibromoethane(EDB) 0 968 050 1 00 97 85-125 <br /> 1,2-Dichloroethane 0 891 0 50 " 1 00 89 77-126 <br /> Ethanol 207 100 200 104 55-200 <br /> Ethylbenzene 1 12 050 1 00 112 89-122 <br /> Ethyl cert-butyl ether 0 945 1 0 1 00 94 71-120 <br /> Methyl tert-butyl ether 0 929 050 1 00 93 70-122 <br /> Toluene 120 050 1 00 120 84-119 HL <br /> Xylenes(total) 330 050 " 3 00 110 86-132 <br /> Surrogate Dibromofluoromethane 457 500 91 84-122 <br /> Surrogate 12-Dichloroethane-d4 413 5 00 83 74-135 <br /> Surrogate Toluene-d8 537 5 00 107 84-119 <br /> Surrogate 4-Bromofluorobenzene 518 5 00 104 86-119 <br /> Sequoia A chain Seq nalyitcal-Petaluma The results in this report apply[o the samples analyzed in accordance with the ch 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 /> 0 <br /> Page 6 of 8 <br />