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�" � • 819 Sinker Ave Su 8 <br /> Sequoia Sacram(9 6,921998 <br /> r Analytical FAX(916)921-0100 <br /> www,sequoialabs.com <br /> • <br /> Gettler-Ryan-Rancho Cordova Project: Former Unocal 0187,Stockton,CA S307508 <br /> 3140 Gold Camp Dr.,Ste. 170 Project Number: N/A Reported: <br /> Rancho Cordova CA,95670 Project Manager: Geoffrey D.Risse 08/05/03 17:55 <br /> Gasoline(2-Methylpentane to 1,2,4-Trimethylbenzene) and BTEX by EPA 8015M and 8021B <br /> Sequoia Analytical- Sacramento <br /> Reporting <br /> Analyte Result Limit Units Dilution Batch Prepared Analyzed Method Notes <br /> U-10(5307508-01)Water Sampled:07/22/03 06:45 Received:07/22/03 16:07 <br /> Purgeable Hydrocarbons 130 50 ug/l 1 3080031 08/04/03 08/04/03 EPA 8015/8021 <br /> Benzene 0.69 0.50 <br /> Toluene ND 0.50 <br /> Ethylbenzene ND 0.50 " <br /> Xylenes(total) 0.59 0.50 <br /> Methyl tert-butyl ether ND 2.0 <br /> Surrogate:a,a,a-Trifluorotoluene 90% 60-140 " <br /> NP-2-22(S307508-02)Water Sampled:07/22/03 06:53 Received:07/22/03 16:07 <br /> Purgeable Hydrocarbons ND 50 ug/! 1 3080031 08/04/03 08/04/03 EPA 8015/8021 <br /> Benzene ND 0.50 <br /> Toluene ND 0.50 <br /> Ethylbenzene ND 0.50 <br /> Xylenes(total) ND 0.50,goW <br /> ethyl tert-butyl ether ND 2.0 <br /> rrogate:a,a,a-Triuorotoluene 80% 60-140 <br /> NP-2-60(S307508-03)Water Sampled:07/22/03 07:06 Received:07122/0316:07 <br /> Purgeable Hydrocarbons 460 50 ug11 1 3080031 08/04/03 08/05/03 EPA 8015/8021 <br /> Benzene 140 5.0 10 08/04/03 " <br /> Toluene 8.8 0.50 1 ^ " 08/05/03 " <br /> Ethylbenzene 1.2 0.50 <br /> Xylenes(total) 23 0.50 <br /> Methyl tent-butyl ether ND 2.0 ^ <br /> Surrogate:a.a,a-Trifluorotoluene 64% 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 entirety. <br /> Page 3 of 8 <br />