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404 N Wiget lane <br /> Sequoia Walnut Creek, CA 94598 <br /> (925)98&9600 <br /> Analytical FAX(925)9$8-9673 <br /> iv <br /> Gettler Ryan,Inc -Dublin Project Tosco <br /> 6747 Sierra Court Suite I Project Number Tosco N6981 Reported <br /> Dublin CA,94568 Project Manager Deanna L Harding 10-Feb-0O 11 00 <br /> Volatile Organic Compounds by EPA Method 8260A <br /> Sequoia Analytical -Walnut Creek <br /> Reporting <br /> Analyte Result Lunit Units Dilution Batch Prepared Analyzed Method Notes <br /> VW-1 (W001654-14)Water Sampled 27-,Ian-00 13 35 Received 28-Jan-00 18 20 <br /> tert-Butyl alcohol ND 100 ug/1 1 OB02018 02-Feb-00 02-Feb-00 EPA 8260A <br /> Methyl cert-butyl ether 46 20 , <br /> Di-isopropyl ether ND 2 0 <br /> Ethyl tert-butyl ether ND 2 0 <br /> tert-Amyl methyl ether ND 2 0 " <br /> Surrogate Dibrontofluoramethane 960% 50-150 <br /> Sur►ogate 1,2-Dichloroethaiie-d4 100% 50-150 " <br /> VW-3(W001654-15)Water Sampled 28-Jun-001335 Received 28-Jan-0018 20 <br /> tert-Butyl alcohol ND 2000 ug/l 20 OB02018 01-Feb-00 O1-Feb-00 EPA 8260A <br /> Methyl tert-butyl ether 2500 40 <br /> 40 " <br /> Di-isopropyl ether ND „ <br /> 40 <br /> Ethyl tett-butyl ether ND <br /> AdhMV1 methyl ether ND 40 <br /> u ogare Dibrontofluoronrethatte 940% 50-150 N N <br /> Surrogate 12-Dichloroethane-d4 104% 50-150 " <br /> VW4 (W001654-16)Water Sampled 28-Jan-00 14 55 Received 284an-0018 20 <br /> tert-Butyl alcohol 170 100 ug/1 1 OBo2018 01-Feb-00 02-Feb-00 EPA 8260A <br /> " <br /> Methyl tett-butyl ether 51 20 „ <br /> Di-isopropyl ether ND 20 <br /> Ethyl tent-butyl ether ND 20 , <br /> 'm 2� <br /> Cert-Amyl methyl D ethyl ether " <br /> Surrogate Dibromofluoronuetharie 960% 50-150 <br /> Surrogate 1,2-Dichloroetharie-d4 100% 50-I50 <br /> ola The results nr this report apply to due samples analysed in xcordance mth the chair of custody <br /> Analytical -Walnut Creek <br /> doeumeni Ths analyireal report must be mproduced in its enitrey <br /> Page 12 of 20 <br /> Alan B Ketnp,Labolatory Director <br />