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i <br /> 819 Striker Avenue,Suite 8 <br /> Sequoia Sacramento,CA 95834 <br /> .. 1 ' 1 (916)921-9600 <br /> Analvtkal FAX(916)921-0100 <br /> www.sequoialabs.com <br /> Delta Environmental Consultants Cam ron Park) Project: <br /> Arco 6100,Tracy,CA <br /> 3330 Cameron Park Dr.Ste 550 Project Number. N/A Reported: <br /> Cameron Park CA,95682'I Project Manager. Jay Johnson 09/24/01 17:12 <br /> a <br /> Total Purgeable Hydrocarbons and BTEX by DHS LUFT <br /> I Sequoia Analytical-Sacramento <br /> ! Reporting <br /> { <br /> LA,alyte Result Limit Units Dilution Batch Prepared Analyzed Method .Notes <br /> 4 i <br /> # B3�S109124-011 Sail 'I Sampled:09&7/0100:00 Received:09/10/0114:00 ^T <br /> Purgeable Hydrocarbons 300 50 mg/kg 10 1090196 09/18/01 09/19/01 DHS LUFT <br /> Benzene 1.8 0.25 <br /> { Toluene 8.1 0.25 <br /> Ethylbenzene 7.7 0.25 <br /> Xylenes(total) j 38 0.25 " <br /> Surrogate:a.a,a-Trrhuorotolluene 159% 60-140 S-02 <br /> 838-34.(5109124-02)SaiI Sampled:09/07/01 00:00 Received:09/10/01 14:00 <br /> Purgeable Hydrocarbons 460 50 mg/kg 10 1090196 09/18/01 09/19/01 DHS LUFT <br /> Benzene 3.3 0.25 " <br /> Toluene 1.2 0.25 " <br /> Ethylbenzene 1.9 0.25 <br /> + Xylenes(total) 3.8 0.25 <br /> 1 Surrogate:a,a,a-Tri17uorotoluene 132% 60-140 <br /> !. . 838-50 5109124-03 5oi1 ''�Sam led:0 107101 00:00 Received:09110 D1 14:00 <br /> Purgeable Hydrocarbons j 58 50 mg/kg 10 1090I96 09/18/01 09/19/01 DHS LUFT <br /> Benzene 0.63 0.25 <br /> Toluene ND 0.25 " <br /> Ethylbenzene ND 0.25 " <br /> Xylenes(total) i 2.2 0.25 " <br /> Surrogate:a,a,a-Tri luorotoluene 120% 60-140 " <br /> B38-74(S109124-04)Soil M Sampled:09107/0100:00 Received.09110/0114:00 - <br /> Purgeable Hydrocarbons ND 5.0 mg/kg 1 1090196 09/18/01 09/19/01 DHS LUFT A-01 <br /> Benzene ND 0.025 A-01 <br /> Toluene ND 0,025 A-01 <br /> Ethylbenzene i ND 0.025 A•01 <br /> Xylenes(total) ND 0.025 A-01 <br /> 'Surrogate:a,a,a-TrifluorotoII ene 103% 607140 <br /> a <br /> i <br /> 1 <br /> k <br /> k } <br /> Sequoia Analytical-Sacra mento The results in this report apply to the samples analyzed in accordance with the chain <br /> of custody document. This analytical report must be reproduced in its entirety. <br /> L <br /> Page Page 2 of 9 <br />