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885 Jarvis Dr <br /> Sequoia Morgan Hill,CA 95037 <br /> j (408)776-9600 <br /> Analytical FAX(408)782-6308 <br /> www.sequoialabs.com <br /> atus Environmental Inc. Project: ARCO 95469,Stockton,CA MLK0837 <br /> 30 Cameron Park Dr.,Suite 550 Project Number: ARCO#5469,Stockton,CA Reported; <br /> Cameron Park CA,95682 Project Manager: Jay.Johnson 12/23/02 10:37 <br /> Total Purgeable Hydrocarbons (C6-C10) by EPA 8015E modified, BTEX by EPA 8021B <br /> Sequoia Analytical -Morgan Hill <br /> Reporting <br /> Analyte Result Limit Units Dilution Batch Prepared Analyzed Method Notes <br /> CPTI-52-S(111LK0837-01)Soil Sampled: 11/21/02 10:15 Received: 1112110215:45 <br /> Gasoline Range Organics(C6-C10) ND 0.50 mg/kg 1 2L05001 12/05/02 12/05/02 8015Bm18021 B <br /> Benzene ND 0.0050 " <br /> Toluene ND 0.0050 " <br /> Ethylbenzene ND 0.0050 " <br /> Xylenes(total) ND 0.010 " <br /> Surrogate:a,a,a-Trifluorotoluene 104% 64-145 " <br /> Surrogate:4-Bromofluorobenzene 114% 41-173 " <br /> C_PT_I-62-W(MLK0837-02)Water Sampled:11/21/02 10:30 Received: 11/21/02 15:45 <br /> Gasoline Range Organics(C6-C 10) ND - 50 ug11 l 2LO4004 12/04/02 12/04/02 8015Bm/8021 B <br /> Benzene ND 0.50 <br /> Toluene ND 0.50 <br /> Ethylbenzene NTD 0.50 <br /> Xylenes(total) ND 0.50 " <br /> Surrogate:a,a,a-Trifluorotoluene 76.7% 55-142 " <br /> AdhPI-72-W M K0837-03 Water Sampled:11/21/02 11:10 Received: 11/21/02 15:45 <br /> soline Range Organics(C6-C10) ND 50 ug/1 l 2LO4004 12/04/02 12/04/02 801513m/8021B <br /> Benzene ND 0.50 <br /> Toluene ND 0.50 <br /> Ethylbenzene ND 0.50 " <br /> Xylenes(total) ND 0.50 " <br /> Surrogate:a,a,a-Trifluorotoluene 83.5% 55-142 " <br /> CPT1-91-W(MLK0837-04)Water Sampled:11/21/02 11:50 Received: 11/21/02 15:45 <br /> Gasoline Range Organics(C6-C10) ND 50 uo 1 2LO3002 12/03!02 12/03/02 8015Bm/8021B <br /> Benzene 0.92 0.50 " <br /> Toluene 1.3 0.50 " <br /> Ethylbenzene 1.4 0.50 " <br /> Xylenes(total) 4.4 0.50 <br /> Surrogate.,a,a,a-Triflucrotoluene 99.2% 55-142 " <br /> The results in this report apply to the samples anal,zed in accordance with the chain of <br /> Analytical-Morgan Hill p pp y P 3 f <br /> 49 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 13 <br />