Laserfiche WebLink
/ Sequoia 1455 Mc[}owl lNorth Ste D <br /> Petaluma <br /> Petaaluu ma CA 94954 <br /> 1r (707)792-1865 <br /> Analytical FAX(707)792 0342 <br /> www sequoialabs com <br /> URS Corp-Sacramento Project Arco Site 6100,Tracy,CA <br /> P406422 <br /> 2870 Gateway Oaks Drive Suite 300 Project Number WR36619 Reported <br /> Sacramento CA,95833 Project Manager Jay Johnson <br /> 07/15/04 10 23 <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 Nates <br /> Batch 4070076- EPA 5030B waters <br /> Blank(4070076-BLKI) Prepared&Analyzed 07/06/04 <br /> Tert-amyl methyl ether ND 10 ug/l <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 0 50 " <br /> Ethanol ND 100 " <br /> Ethylbenzene ND 0 50 " <br /> Ethyl tert-butyl ether ND 10 " <br /> Methyl tert-butyl ether ND 0 50 " <br /> Toluene ND 050 " <br /> X lenes(total) ND 050 " <br /> rogate Dibromofluoromethane 6 73 " 500 135 84-122 S0l <br /> Srrrogale 12-Dichloroethane-d4 662 5 00 132 74-135 <br /> Surrogate Toluene-d8 557 500 111 84-119 <br /> Surrogate 4-Bromofuorobenzene 5 64 500 113 86 119 <br /> Laboratory Control Sample(4070076-BS1) Prepared&Analyzed 07/06/04 <br /> Tert-amyl methyl ether 438 1 0 ug/1 5 OO 88 78-117 <br /> Benzene 556 0 50 500 ill 81-118 <br /> Tert-butyl alcohol 973 20 100 97 60-147 <br /> Di-isopropyl ether 5 82 1 0 5 00 116 70-125 <br /> 1,2-Dibromoethane(EDB) 5 54 050 500 ill 85-125 <br /> 1,2-Dichloroethane 6 41 0 50 500 128 77-126 QCO1 <br /> Ethanol 183 100 100 183 55-200 <br /> Ethylbenzene 547 0 50 500 109 89-122 <br /> Ethyl tent-butyl ether 4 95 1 0 Soo 99 71-120 <br /> Methyl tert-butyl ether 5 08 050 5 00 102 70-122 <br /> Toluene 533 0 50 500 107 84-119 <br /> Xylenes(total) 171 050 150 114 86-132 <br /> Surrogate Dibromofluoromethane 667 500 133 84-122 SOl <br /> Surrogate 1 2-Dichloroelhane-d4 6 70 500 134 74-135 <br /> Surrogate Toluene-d8 585 5 00 117 84-119 <br /> Surrogate 4-Bromofluorobenzene 529 Soo 106 86-119 <br /> Cluola Analytical- Petaluma The results in this report apply to the samples analyzed in accordance with the chain of <br /> custody document Unless otherwise slated,results are reported on a wet weight basis <br /> This analytical report must be reproduced in its entirety <br /> Page 15 of 18 <br />