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Sequoia 1551 Industrial Road <br /> San Carlos CA 94070-4111 <br /> A (650) 232-9600 <br /> nalytical <br /> FAx(650) 232-9612 <br /> Blaine Tech Services Project Equiva(2) Sampled 9/22/99 <br /> 1680 Rogers Avenue Project Number 341 East Main St,Ripon Received 9/23/99 <br /> San Jose,CA 95112 - —Project Mana er Ann Pember - - - - -z Reported _ 10/8/99 -- - -_ <br /> Sample Description EW-1 <br /> Laboratory Sample Number L909232-02 <br /> Batch Date Date Specific Method/ Reporting <br /> lAnalyte Number Prepared Analyzed Surrogate Limits Limit Result Units Notes* <br /> Sequoia Analytical-San Carlos <br /> Total Purgeable Hydrocarbons fC-6-C12):BTEX=and MTBE-by DHS LU <br /> Purgeable Hydrocarbons as Gasoline 9100025 10/6/99 10/6/99 1250 ND ugll <br /> Benzene 11125 15 9 " <br /> Toluene 125 ND " <br /> Ethylbenzene " " " 125 ND It <br /> Xylenes(total) 12 5 ND " <br /> Methyl tert-butyl ether 910024 2500 95800 " <br /> Surrogate a,a,a-Trifluorotoluene 910025 fr 700-130 772 % <br /> Volatile Organic Compounds by EPA Method 8010E <br /> 1,2-Dibromoethane 9090144 10/1/99 10/1/99 250 ND ug/l <br /> 1,2-Dichloroethane " 250 ND " <br /> Surrogate 1-Chloro-2lluorobenzene 0or 700-130 113 % <br /> Volatile Organic Oxygenated Compounds by EPA Method 8260A <br /> Ethanol 9090138 9/29/99 9129/99 1000000 ND ug/l <br /> Tert-butyl alcohol it 200000 ND " <br /> Methyl tert-butyl ether 2000 99800 " <br /> Di-isopropyl ether 2000 ND " <br /> Ethyl tert-butyl ether " it it 2000 ND " <br /> Tert-amyl methyl ether " " " 2000 ND " <br /> Surrogate 1,2-Dichloroethane-d4 er 760-114 874 % <br /> Industrial Solvents by EPA Method 8015(modified) <br /> Methanol 9100027 10/4/99 10/5199 100 6.38 mg/I <br /> Surrogate 1 pentanol 11 550-157 116 % <br /> Surrogate 1 pentanol(dbwar) 570-170 114 " <br /> 1 <br /> Sequoia Analytical-San Carlos *Refer to end of report for text of notes and definitions <br /> { Page 3 of 1 I <br />