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404 N.Wigetlane <br /> Sequoia Walnut Creek, 94598 <br /> -9600 <br /> (925)98 8-9600 <br /> FAX(925)988-9673 <br /> www.sequoialabs.com <br /> wwsequoialabs.com <br /> gan Joaquin Company Inc. Project: 7500 W 11th St.Steet Tracy <br /> 1120 HollywoodAve,No.3 Project Number: #9902.012 Reported: <br /> Oakland CA.,94602 Project Manager: Dai Watkins 26-May-00 12:24 <br /> Total Purgeable Hydrocarbons (C6-C12) and BTEX by DHS LUFT <br /> - Sequoia Analytical -Walnut Creep <br /> Reporting <br /> JI: Analyte Result Limit Units Dilution Batch Prepared Analyzed Method Notes <br /> MW-1 (WO05376-01)Water Sampled: 11-May-0012:58 Received: 15-May-00 10:25 <br /> urgeable Hydrocarbons ND 50 ug/l 1 0E22002 22-May-00 22-May-00 DHS LUFT <br /> Benzene 6.1 0,50 <br /> Toluene ND 0.50 " <br /> �--Irthylbenzene 1.8 0.50 " <br /> >:'.-ylenes(total) 2.6 0,50 " <br /> Surrogate:a,a,a-Trifluorotoluene 96,7% 70-130 <br /> I�dW-2(WO05376-02)Water Sampled: 11-May-0010:55 Received: 15-May-00 10:25 <br /> _Vurgeable Hydrocarbons ND 50 ug/l 1 OE22002 22-May-00 22-May-00 DHS LUFT <br /> Benzene 4.7 0.50 " " " <br /> ?Toluene ND 0.50 <br /> SEthylbenzene 0.86 0.50 " <br /> Xylenes (total) 1.1 0.50 " <br /> ,Surrogate:a,a a-Trifluorotoluene 93.3% 70-130 <br /> .- -3(WOUS37G-03)Water Sampled: 11-May-0011:15 Received: 15-May-0010:25 P-01 <br /> Purgeable Hydrocarbons 11000 5000 ug/l 100 OE23001 23-May-00 23-May-00 DHS LUFT <br /> i <br /> _�Benzene 5600 50 " <br /> :7tiluene 160 50 " <br /> Ethylbenzene 830 50 <br /> Xylenes(total) 710 50 " <br /> Surrogate:a,a,a-Tris luorotoluene 101 % 70-130 " <br /> MW-4(WO05376-04)Water Sampled: 11-May-00 11:28 Received: 15-May-00 10:25 P-01 <br /> Purgeable Hydrocarbons 52 50 ug/l 1 OE23001 23-May-00 23-May-00 DHS LUFT <br /> ,Benzene 4.8 0.50 " <br /> -toluene 0.74 0.50 " <br /> Ethylbenzene 1.0 0.50 " <br /> } ,Xylenes (total) 3.1 0.50 " <br /> --'Surrogate:a,a,a-Trifluorotoluene 89.7% 70-130 " <br /> i <br /> �r <br /> Sequoia Analytical.-Walnut Creek 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 /> Page 2of17 <br />