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�—&— (.� <br /> 885 Jarvis Pr <br /> Sequoia Morgin Hill,CA 95037 <br /> Analytical <br /> 408)7769600 <br /> FAX(408)7826308 <br /> www.sequoialabs.cun <br /> URS Corporation[l I Project: ARCO#434 MLJ0673 <br /> 2870 Gateway Oaks Dr.,Ste 300 Project Number: ARCO#434 Reported: <br /> Sacramento CA,95833 Project Manager: Vem Elarth 11/12/02 10:24 <br /> Total Purgeable Hydrocarbons(C6-C10) by EPA 8015B modified <br /> Sequoia Analytical-Morgan Hill <br /> Reporting <br /> Analyte Result Limit Units Dilution Batch Prepared Analyzed Method Notes <br /> PB-1(MLJ0673-01)Soil Sampled:10/22/02 11:40 Received: 10/22/02 16:30 <br /> Gasoline Range Organics(C6-C10) NO 0.50 mg/kg 1 2128013 10/28/02 10/28/02 8015Bm <br /> Surrogate:a,a,a-Tris luorotoluene 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-CIO) NO 0.50 mg/kg 1 2128013 10/28/02 10/28/02 8015Bm <br /> Surrogate:ax a-TriJluorotoluene 99.0% 64-145 " <br /> PB-3(MLJ0673-03)Soil Sampled:10/22/02 11:55 Received:10/22/02 16:30 <br /> Gasoline Range Organics(C6-C10) ND 0.50 mg/kg 1 2728013 10/28/02 10/28/02 8015Bm <br /> Surrogate:a,a,a-Tris luorotoluene 970% 64-145 " <br /> PB4(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 2728013 10/28/02 10/28/02 8015Bm <br /> Surrogate:a,a,a-Tris luorotoluene 101 % 64-145 " <br /> PB-5(MLJ0673-05)Soil Sampled:10/22/02 12:05 Received: 10/22/02 16:30 <br /> Gasoline Range Organics(C6-Cl0) NO 0.50 mg/kg 1 2728013 10/28/02 10/28/02 8015Bm <br /> Surrogate:qa,a-Trifluorotoluene 93.0% 64-145 " <br /> PB-6(MLJ0673-06)Soil Sampled: 10/22/0212:10 Received:10/22/02 16:30 <br /> Gasoline Range Organics(C6-CIO) ND 0.50 mg/kg 1 2128013 10/28/02 10/28/02 8015Bm <br /> Surrogate:a,a,a-Tris luorotoluene 100% 64-145 " <br /> W-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 I 2129004 10/29/02 10/30/02 8015Bm <br /> Surrogate:a,a,a-Tris luorotoluene 102% 64-145 " <br /> Surrogate:4-Bromofluorobenzene 108% 41-173 " <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 /> 4 o 16 <br />