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Sequoia <br />� Analytical <br />1551 lndustnal Road <br />San Carios CA 94070-4111 <br />(650) 232-9600 <br />FAX (650) 232-9612 <br />31ame Tech Services <br />Project <br />Chtxron(3) <br />Sampled <br />6/21/99 <br />1680 Rogers Avenue <br />Project Number <br />Chevron 9-5775/99062]R-3 <br />Received <br />6/23/99 <br />San Jose, CA 95112 <br />Pro ect Manager <br />Chnsnne Lillie <br />Reported <br />7/12199 <br />Sample Description NRV4 <br />Laboratory Sample Number L906301-04 <br />Batch Date Date Specific Method/ Reporting <br />knalyte Number Prepared Analyzed Surrogate L,unrts Limit Result Units Notes* <br />Seauoia Analvhcal - San Carlos <br />Total Purgeable Hvdrocarbons W6 -C121. BTEX and MTBE by DHS LUFT <br />Purgeable Hydrocarbons as Gasoline 9060154 6/28/99 6/29/99 <br />1000 <br />2700 <br />ug/l 1 <br />" to <br />Benzene 01 <br />10 0 <br />916 <br />" <br />Toluene it <br />100 <br />ND <br />" <br />Ethylbenzene " " " <br />100 <br />514 <br />It <br />Xylenes (total) itit <br />100 <br />228 <br />" <br />Methyl tert-butyl ether <br />100 <br />1300 <br />Surrogate a,a,a-Trifluorotoluene 700-130 <br />926 <br />% <br />Volatile Organic Oxvgenated Compounds by EPA Method 8260A <br />Ethanol 9060143 6128/99 6128199 10000 ND ugll <br />Tert-butyl alcohol it" „ 2000 ND " <br />Methyl tert-butyl ether it 200 1670 " <br />IV, <br />ether 200 ND " <br />I1 tert-butyl ether " It 200 214 „ <br />Tert-amyl methyl ether 1p200 351 " <br />Surrogate 1,2-Dwh1oroethane-d4 760-114 107 % <br />to end of report for text of notes <br />Page 5 of 11 <br />