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Road <br /> Sequoia an Carldust A 94070 <br /> San Carlos CA 94070 <br /> (650)232-9600 <br /> Analytical FAX(650)232-9612 <br /> www-sequoialahs-com <br /> GettIer-Ryan/Geostrategies(1) Projecl: Tosco(I) <br /> s <br /> 6747 Sierra Court, Suite J Project Number: UNOCAL SS41]195 ,LATHROP,CA Reported: <br /> Dublin CA,94568 Project Manager: Deanna}-larding 08/2810107:22 <br /> Total Purgeable Hydrocarbon (C6-C12) by EPA 8015111 and BTEX/MTBE by EPA 8021B <br /> Sequoia Analytical - San Carlos <br /> Reporting <br /> Analyte Result Limit Units Dilution Balch Prepared Analyzed Method Notes <br /> MW-6(LI 08074-07)'Vater Sardpled:08110/0114:16 Received:08/10/0118:55 <br /> Purgeable Hydrocarbons as Gasoline ND 50 ug/l 1 1080099 08/23/01 08/24/01 DHS LUFT <br /> Benzene ND 0.50 " <br /> Toluene ND 0.50 " <br /> Ethylbenzene ND 0.50 " <br /> Xylenes(total) ND 0.50 " <br /> Methyl tert-butyl ether 7.0 5.0 " <br /> Surrogate:a,a,a-Trifluorotoluene 115% 70-130 " <br /> NIW-8(L108074-08)Water Sampled: 0811010) 12:26 Received:08/10/01 18:55 T <br /> Purgeable Hydrocarbons as Gasoline ND 200 ugll 4 1080106 08/24/01 08/24/01 DHS LUFT <br /> Benzene ND 2.0 " <br /> Toluene ND 2.0 " <br /> Ethylbenzene ND 2.0 " <br /> Xylenes(total) ND 2.0 " <br /> Methyl Cert-butyl ether 2300 50 10 M-04 <br /> Surrogate:a,o a-Trfuorotoluene 116% 70-130 :.- <br /> MW-9(L108074-09)Wafer Sampled:08/10/01 11:43 Received:08/10/01 18:55 <br /> Purgeable Hydrocarbons as Gasoline ND 50 ug/1 1 1080107 0$124101 08/24/01 DHS LUFT <br /> Benzene ND 0.50 " <br /> Toluene 1.1 0.50 " <br /> Ethylbenzene ND 0.50 <br /> Xylenes(total) 0.91 0.50 " <br /> Methyl tert-butyl ether ND 5.0 " <br /> Surrogate:a,o,a-Trifluorotoluene 108% 70-130 " <br /> T <br /> Sequoia Analytical- San Carlos The results in this report apply to the samples analyzed in accordance with rhe chain o;, } <br /> custody document. This analytical reporl muss be reproduced in its entirety. <br /> Page 4 of 22 <br />