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.-111110111- 885 <br /> Sequoia Morgan Bill,C 4 5037 <br /> (408)776-9600 <br /> Analytical <br /> FAX(468)762-6308 <br /> www.scquoialabs.can <br /> RS Corporation[1J Project: ARCO#548,Stockton,Ca ML)0507 <br /> 2870 Gateway Oaks Dr.,Ste 300 Project N,-b ARCO#548,Stockton,CA Reported: <br /> Sacramento CA,95833 Project Manager: Vern Elarth 111221 2 1 5:39 <br /> Total Purgeable Hydrocarbons (C6-C10) by EPA 8015B modified, BTEX by EPA 8021B <br /> Sequoia Analytical-Morgan Hill <br /> Reporting <br /> Analyte Result Limit Units Dilution Batch Prepared Analyzed Method Notes <br /> INF Total Air MLJO507-01 Air Sampled: 10116102.1_2:40 Received: 10/16/0215:43 <br /> Gasoline Range Organics(C6-CIO) 17 2.4 ppmv 1 2J18003 10/18/02 10/18/02 801513m/8021B HC-12 <br /> Benzene 0.081 0.031 <br /> Toluene 0.15 0.027 " <br /> Ethylbenzene ND 0.023 <br /> Xylenes(total) 1.0 0.023 " <br /> Methyl tert-butyl ether 0.34 0.14 " <br /> Surrogate:a,a,a-Tri.Jluorotoluene 146% 56-134 S-02 <br /> 1 N Cat Air(MLJ0507-02)Air Sampled: 10/16/02 12.30Received: 10/16/02 15:43 j <br /> Gasoline Range Organics(C6-CIO) 16 2.4 ppmv 1 2J18003 10/18/02 10/18/02 8015BmM02113 HC-12 <br /> Benzene 0.049 0.031 <br /> Toluene 0.13 0.027 <br /> Ethylbenzene ND 0.023 " <br /> Xylenes(total) 0.94 0.023 " <br /> Methyl tert-butyl ether ND 0.14 <br /> rogate:a,a,a-Triuorotoluene 128% 56-134 <br /> 4urFAir(MLJ0507-G3)Air <br /> Sampled: 10/16/0212:25 Received:10/16/02 15:43 <br /> Gasoline Range Organics(C6-C10) ND 2.4 ppmv 1 2JI8003 10/18/02 10/18/02 8015Bm/8021B <br /> Benzene ND 0.031 " <br /> Toluene ND 0.027 <br /> Ethylbenzene ND 0.023 " <br /> Xylenes(total) ND 0.023 " <br /> Methyl tert-butyl ether ND 0.14 <br /> Surrogate:a,a,a-Triifluorotoluene 116% 56-134 <br /> Sequoia Analytical -Morgan Hill 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 /> 3 of 8 <br />