Laserfiche WebLink
1455 McDowell Blvd <br /> Sequoia Petaluma,CA94954 North Ste <br /> (707)792-0365 <br /> Analytical <br /> FAX(707)792-0342 <br /> . wwwsequoialabs,com <br /> URS Corp-Sacramento Project Arco Site 5469,Stockton,CA P305380 <br /> 2870 Gateway Oaks Drive Suite 300 Project Number: WR36605 Reported: <br /> Sacramento CA,95833 Project Manager: Jay Johnson 06/18/03 21:10 <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 3050779-EPA 5030 waters <br /> Laboratory Control Sample Dup(3050779-BSD1) Prepared:05/30/03 Analyzed: 05/31/03 <br /> Surrogate:Toluene-d8 4.97 ug/l 5.00 99 84-119 <br /> Batch 3050783 -EPA 5030 waters <br /> Blank(3050783-BLKI) Prepared&Analyzed:05/31/03 <br /> Tert-amyl methyl ether ND 1.0 ug/l <br /> Tert-butyl alcohol ND 20 " <br /> Di-isopropyl ether ND 1.0 " <br /> 1,2-Dibromoethane(EDB) ND 0.50 " <br /> 1,2-Dichloroethane ND 0.50 " <br /> Ethanol ND 100 " <br /> Ethyl tert-butyl ether ND 1.0 " <br /> ethyl tert-butyl ether ND 0.50 " <br /> -Wurrogate:Dibromofluoromethane 4.68 500 94 84-122 <br /> Surrogate:l,2-Dichloroethane-d4 4.84 5.00 97 74-135 <br /> Surrogate:Toluene-d8 4.94 5.00 99 84-119 <br /> Laboratory Control Sample(3050783-BSI) Prepared&Analyzed:05/31/03 <br /> Tert-amyl methyl ether 5.17 1.0 ugll 5.00 103 70-116 <br /> Tert-butyl alcohol 108 20 100 108 62-142 <br /> Di-isopropyl ether 5.17 1.0 5.00 103 71-121 <br /> 1,2-Dibromoethane(EDB) 5.27 0.50 5.00 105 92-117 <br /> 1,2-Dichloroethane 5.31 0.50 5.00 106 79-126 <br /> Ethanol 115 100 100 115 0-200 <br /> Ethyl tert-butyl ether 5.01 1.0 5.00 100 71-110 <br /> Methyl tert-butyl ether 5.19 0.50 5.00 104 80-109 <br /> Surrogate:Dibromofluoromethane 4,70 5.00 94 84-122 <br /> Surrogate:l,2-Dichloroethane-d4 4.71 5.00 94 74-135 <br /> Surrogate, Toluene-d8 4,93 5.00 99 84-119 <br /> Sequoia 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 36 <br />