Laserfiche WebLink
I455 McDowell Blvd,North Ste D <br /> Sequoia Petaluma,CA 94954 <br /> (707)792-186565 <br /> Analytical FAX(707)792-0342 <br /> www sequoialabs coni <br /> URS Corp-Sacramento Project Arco Site 2186,Stockton,CA P504013 <br /> 2870 Gateway Oaks Drive Suite 300 Project Number G097Z-0164 Reported <br /> Sacramento CA,95833 Protect Manager Vernon P Elarth 04/14/05 16 07 <br /> Volatile Organic Compounds by EPA Method 8260B - Quality Control <br /> Sequoia Analytical -Petaluma <br /> Reporting Spike Source °/6REC RPD <br /> Analyte Result limit Units Level Result %REC ]emits RPD Limit Notes <br /> Batch 5040103-EPA 5030B waters/EPA 8260B <br /> Blank(5040103-BLK1) Prepared&Analyzed 04/12/05 <br /> Ten-amyl methyl ether ND 10 ugll <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 " <br /> Xylenes(total) ND 050 " <br /> arrogate Dibromofluoromethane 488 Soo 98 84-121 <br /> Surrogate 1 2-Dichloroethane-d4 462 500 92 74-135 <br /> Surrogate Toluene-d8 4 98 5 00 100 84-119 <br /> Surrogate 4-Bromofluorobenzene 564 500 113 86-119 <br /> Laboratory Control Sample(5040103-BSI) Prepared&Analyzed 04/12/05 <br /> Tert-amyl methyl ether 475 10 ugA 5 00 95 78-117 <br /> Benzene 463 050 500 93 81-118 <br /> Teri-butyl alcohol 976 20 " 100 98 60-147 <br /> Di isopropyl ether 487 10 " 500 97 70-125 <br /> 1,2-Dibromoethane(EDB) 5 11 050 500 102 85-125 <br /> 1,2 Dichloroethane 4 78 050 500 96 77-126 <br /> Ethanol 118 100 100 118 55-200 <br /> Ethylbenzene 4 81 050 5 00 96 89-122 <br /> Ethyl tent-butyl ether 449 10 5 00 90 71-120 <br /> Methyl ten-butyl ether 464 050 500 93 70-122 <br /> Toluene 4 75 050 5 00 95 84-119 <br /> Xylenes(total) 145 050 150 97 86-132 <br /> Surrogate Dibromofluoromeihane 490 500 98 84-112 <br /> Surrogate 12 I chloroethane-d4 467 500 93 74-135 <br /> Surrogate Toluene-d8 496 5 00 99 84-119 <br /> Surrogate 4-Bromofluorobenzene 546 500 109 86-119 <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 14 of 20 <br />