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4 <br /> Sequoia 819 Striker Avenue,Suite 8 <br /> Sacramento,CA 95834 t <br /> (9167 921-9400 <br /> � � E�C�� FAX(916)921-0160 3 <br /> www.sequoialabs.c' <br /> �+ Delta Environmental Consultants(Cameron Park) Project:� Arco 6100,Tracy,CA <br /> 3330 Cameron Park Dr.Ste 550 Project Number, N/A Reported: <br /> Cameron Park CA,95682: Project Manager: ray Johnson 09/21/01 15:50 <br /> Volatile Organic 8 Oxygenated Compounds by EPA Alethod 826013 <br /> Sequoia Analytical-San Carlos <br /> Reporting <br /> ! Analyte Result Limit Units '.' Dilution Batch Prepared Analyzed Method Nvtes <br /> { <br /> $3 -20 SI09118-01 Soil Sam led:0 104101 10:53 Received.09/0710115.15 <br /> Ethanol ND 50 mg/kg 1 1.090053 09/14/01 09/17/01 EPA 8260B <br /> 1,2-Dibromoethane ND 0.10 „ <br /> 1,2-Dichloroethane ND 0.10 <br /> Di-isopropyl ether ND 0.10 „ <br />{ Ethyl tert-butyl ether NID 0.10 <br /> Methyl tert-butyl ether ND 0.10 " <br /> Tert-amyl methyl ether ND 0.10 " <br /> Tert-butyl alcohol ND 5.0 <br /> Sttrrogate:1,2-Dichloroethane-d4 87.6% 70=121 11Surrogate:Toluene48 92.8% 81117 " ^ <br /> 533-48 5109118-02 Soil :Sampled.09/04/01 11:35 Received:09/07/0115:15 <br />! Ethanol ND 50 mg/kg 1 1090053 09/14/01 09/17/01 EPA 8260B <br /> 1,2-Dibromoethane ND 0.10 <br /> 1,2-Dichloroethane <br />, (w� .ND 0.10 <br /> Di-isopropyl ether ND 0.10 <br /> Ethyl tert-butyl ether ND 0,10 <br /> Methyl Cert-butyl ether ND 0.10 ^ <br /> Tert-amyl methyl ether ND 0.10 ^ <br /> Tert-butyl alcohol ND 5.0 " <br /> Surrogate:1.2-Dichloroethane-d4 82.0% 702121 11 " 11 „ <br /> SurroQate.'Toluene-d8 84.0% 81-117 11 11 11 „ <br /> B33-63IS109118-03 Soil Sampled,09/04/01 12.05 Received.02/07/01 15.15 <br /> Ethanol ND 50 mg/kg 1 1090053 09/14/01 09/17/01 EPA 8260B' <br /> 1,2-Dibromoethane ND 0.10 09/17/01 " <br /> 1,2-Dichloroethane ND 0.10 09/17/01 <br /> Di-isopropyl ether ND 0.10 11 <br /> Ethyl tert-butyl ether ND 0.10 09/17/01 ^ <br /> Methyl tert-butyl ether 0.12 0.10 1. <br /> Tert-amyl methyl ether ND 0,10 " <br /> Tert-butyl alcohol ND 5.0 " <br /> Sutrogd1e:1,2-Dichloroethane-d4 75.2% 70-121 " <br /> Surrogate:Toluene-d8 88.0% 81-117 <br /> f <br /> -Sequoia Analytical-Sacramento The results in this report apply to the samples analyzed in'accordance with the chain <br /> of custody document. This analytical report must be reproduced in its entirety. <br /> Page Page 12 of 24 <br /> l � <br />