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� 885 Jarvis Drive <br /> i CA 95037 <br /> Sequoia Morgan(08,)776-9600 <br /> +I FAX(408)782-6308 <br /> Analyticalw.sequoialabs.com <br /> URS Corporation 11] Project: ARCO#434 MLJ0673 <br /> 2870 Gateway Oaks Dr.,Ste 300 Project Number: ARCO 9434 Reported: <br /> Sacramento CA,95833 Project Manager: Vern Elarth 11/12/02 14:57 <br /> Total Purgeable Hydrocarbons (C6-C10) by EPA 8015B modified <br /> Sequoia Analytical -Morgan' Hill <br /> Reporting <br /> I Analyte Result Limit Units Dilution i Batch Prepared Analyzed Method Notes <br /> i PB-1 (MLJ0673-01)Soil Sampled: 10/22/02 11:40 Received: 10/22/02 16:30 <br /> Gasoline Range Organics(C6-C 10) ND 0.50 mg/kg 1 2J28013 10/28/02 10/28/02 8015Bm <br /> .Surrogate:a,a,a-Trifluorotoluene 91,0% 64-145 <br /> PB-2(MLJ0673-02)Soil Sampled: 10/22/02 11:45 Received: 10/22/02 16:30 <br /> Gasoline Range Organics(C6-C 10) ND 0.50 mg/kg 1 2J28013 10/28/02 10/28/02 80153m <br /> Surrogate:a,a,a-Tris luorotoluene 99.0% 64-145 <br /> P13-3(MLJ0673-03)Soil Sampled: 10/22/02 11:55 Received: 10/22/02 16:30 <br /> Gasoline Range Organics(C6-C 10) ND 0.50 mg/kg I 2J28013 10/28/02 10/28/02 8015Bm <br /> Surrogate:a,a,a-Tris luorotoluene 97.0% 64-145 <br /> PB-4(MLJ0673-04)Soil Sampled: 10/22/02 12:00 Received: 10/22/02 16:30 <br /> Gasoline Range Organics(C6-C 10) ND 0.50 mg/kg 1 2J28013 10/28/02 10/28/02 8015Bm <br /> Surrogate:a,a,a-Trifluorotoluene 101 % 64-145 " <br /> PB-5(MLJ0673-05)Soil Sampled: 10122102 12:05 Received: 10/22/02 16:30 <br /> Gasoline Range Organics(C6-C 10) ND 0.50 mg/kg 1 2J28013 10/28/02 10/28/02 8015Bm <br /> Surrogate:a,a,a-Tris luorotoluene 93.0% 64-145 <br /> PB-6(MLJ0673-06)Soil Sampled: 10/22/02 12:10 Received: 10/22/02 16:30 <br /> Gasoline Range Organics(C6-C 10) ND 0.50 mg/kg 1 2,128013 10/28/02 10/28/02 8015Bm <br /> Surrogate:a,a,a-Trifluorotoluene 100% 64-145 <br /> DI-1 (MLJ0673-07)Soil Sampled: 10/22/02 12:15 Received: 10/22/02 16:30 <br /> Gasoline Range Organics(C6-CIO) ND 0.50 mg/kg 1 2329004 10/29/02 10/30/02 8015Bm <br /> Surrogate:a,a,a-Trifluorotoluene 102% 64-145 " <br /> Surrogate:4-Bromofluorobenzene 108% 41-173 " <br /> k <br /> Sequoia Analytical-Morgan Hill The results in this report apply to the samples analyzed in accordance with the chain of <br /> custody document. This analytical report must be reproduced in its entirety. <br /> j 4of15 <br />