Laserfiche WebLink
(D Sequoia 1455 McDowell Blvd,North Ste D <br /> Petaluma, 94954 <br /> t ► Analytical FAX(707)79 2-1865 <br /> (707)792-4342 <br /> . www,sequoialabs.com <br /> URS.Corp-Sacramento Project: Arco Site 5469,Stockton,CA P309139 <br /> 2870 Gateway Oaks Drive Suite 300 Project Number: WR36605 Reported: <br /> Sacramento CA,95833 Project Manager: Jay Johnson 10/16/03 19:28 <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 3090442 -EPA 5030 waters <br /> Laboratory Control Sample(3090442-BSI) Prepared&Analyzed:09/19/03 <br /> Tert-amyl methyl ether 4.83 1.0 ug/l 5.00 97 70-116 <br /> Benzene 5.03 0.50 5.00 101 81-118 <br /> Tert-butyl alcohol 115 20 100 115 62-142 <br /> Di-isopropyl ether 4.52 1.0 5.00 90 71-121 <br /> 1,2-Dibrommthane(EDB) 5.42 0.50 5.00 108 92-117 <br /> 1,2-Dichloroethane 4.72 0.50 5.00 94 79-126 <br /> Ethanol 104 100 100 104 65-135 <br /> Ethylbenzene 5.16 0.50 5.00 103 89-122 <br /> Ethyl tert-butyl ether 4.53 1.0 5.00 91 71-110 <br /> Methyl cert-butyl ether 3.96 0.50 5.00 79 77-123 <br /> Toluene 5.02 0.50 5.00 100 84-119 <br /> 9111hylenes(total) 15.8 0.50 15.0 105 86-132 <br /> 'qWarrogate:Dibromofluoromethane 4.80 5.00 96 84-122 <br /> Surrogate:42-Dichloroethane-d4 4.50 5.00 90 74-135 <br /> Surrogate:Toluene-d8 4.99 5.00 100 84-119 <br /> Surrogate:4-Bromofluorobenzene 4.84 5.00 97 86-119 <br /> Matrix Spike(3090442-MSI) Source: P309233-11 Prepared&Analyzed:09/19/03 <br /> Tert-amyl methyl ether 5.08 1.0 ugll 5.00 ND 102 70-116 <br /> Benzene 5.13 0.50 5.00 ND 103 81-118 <br /> Tert-butyl alcohol 137 20 100 ND 137 62-142 <br /> Di-isopropyl ether 4.90 LO 5.00 ND 98 71-121 <br /> 1,2-Dibromoethane(EDB) 5.34 0.50 5.00 ND 107 92-117 <br /> 1,2-Dichloroethane 5.04 0.50 5.00 ND 101 79-126 <br /> Ethanol 110 100 100 ND 110 65-135 <br /> Ethylbenzene 5.02 0.50 5.00 ND 100 89-122 <br /> Ethyl tert-butyl ether 4.86 1.0 5.00 ND 97 71-110 <br /> Methyl tort-butyl ether 4.64 0.50 5.00 0.31 87 77-123 <br /> Toluene 5.09 0.50 5.00 ND 102 84-119 <br /> Xylenes(total) 15.5 0.50 15.0 ND 103 86-132 <br /> Surrogate:Dibromofluoromethane 4.49 5.00 90 84-122 <br /> Surrogate:1,2-Dichloroethane-d4 4.61 5.00 92 74-135 <br /> Surrogate: Toluene-d8 4.54 5.00 91 84-119 <br /> Surrogate:4-Bromofluorobenzene 4.82 5.00 96 86-119 <br /> equoia Analytical -Petaluma The results in 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 28 of 38 <br />