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1 . 619 Striker Ave Ste 8 <br /> Sequoia Sacram91C1 CA 90 <br /> ( <br /> ' �°�•��� Analytical (916)9219609600 <br /> PAX(916)921-0100 <br /> www sequoialabs com <br /> Geological Technics,Inc Protect Marct Property 5412285 <br /> 1101 7th Street Project Number[none] Reported <br /> ' Modesto CA,95354 Project Manager Joseph Angulo 12/28/04 17 54 <br /> Gasoline\BTEXIOxygenates by EPA method 8260B <br /> Sequoia Analytical Sacramento <br /> ' Reporung <br /> Analyte Result Lunt Units Dilution Batch Prepared Analyzed Method Now <br /> MW-7(5412285-07)Water Sampled 12/09/04 16 35 Received 12/10/04 14 45 " " ' <br /> 1,2-Dichloroethane ND 050 ug/l 1 4120282 12/21/04 12/22/04 EPA 8260E PH <br /> 1,2-Dibromoethane(EDB) ND 050 PH <br /> Benzene 079 050 PH <br /> ' Ethylbenzene ND 0 50 PH <br /> Toluene ND 050 PH <br /> Xylenes(total) ND 050 " PH <br /> Gasoline Range Organics(C4-C12) 62 50 PH <br /> Surrogate 1,2-DC4-d4 93% 60-140 n " FH <br /> Surrogate Toluene-d8 98% 60-140 PH <br /> Surrogate 4-BFB 10.1% 60-140 FH <br /> MW-8(5412285-08)Water Sampled 12/09/04 15 20 Received 12/10/0414 45 <br /> 1,2-Dichloroethane ND 0 50 ugll 1 4120312 12/22/04 12/23/04 EPA 8260B <br /> 1,2-Dibromoethane(EDB) ND 0 50 " <br /> Odo.Benzene ND 0 50 " <br /> tbylbenzene ND 0 50 <br /> Toluene ND 050 " <br /> Xylenes(total) ND 050 " <br /> Gasoline Range Organics(C4-C12) ND 50 " <br /> Surrogate 1,2-DCA-d4 93% 60-140 <br /> Surrogate Toluene-& 97% 60-140 " <br /> Surrogate 4-BFB 95% 60-140 " <br /> MW-104(5412285-09)Water Sampled 12/09/04 12 00 Received 12/10/04 14 45 <br /> 1,2-Dichloroethane ND 050 ug/l 1 4126312 12122104 12/23/04 EPA 8260B <br /> 1,2-Dibromaethane(EDB) ND 050 11 " " " <br /> Benzene ND 050 " <br /> Ethylbenzene ND 050 " <br /> Toluene ND 050 " <br /> Xylenes(total) ND 050 <br /> Gasoline Range Organics(C4-C12) ND 50 " <br /> Sunagate 1„2-DG4-d4 _ _ _ _ —94%- _60-140 <br /> ' Surrogate Toluene-d8 90% 60-140 <br /> Surrogate 4-BFB 100% 60-140 " <br /> ' Sequoia Analytical-Sacramento 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 entirely <br /> Page 7 of 16 <br />