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i <br /> Client Number 020702819 <br /> Project ID 4004 EI Dorado <br /> Stockton,CA <br /> Work Order Number C3-10-0516 <br /> Table 1 <br /> ANALYTICAL RESULTS <br /> Aromatic Volatile Organics and <br /> Total Petroleum Hydrocarbons as Gasoline in Air <br /> Modified EPA Methods 8020 and 8015a <br /> GTEL Sample Number 01 1027A <br /> Client Identification INF METHOD <br /> BLANK <br /> Date Sampled 10/26/93 -- <br /> Date Analyzed 10/29/93 10/27/93 <br /> Detection <br /> Analyte Limit, ug/L Concentration, ug/L <br /> Benzene 0 5 6800 <05 <br /> Toluene 05 6800 <05 <br /> Ethylbenzene 05 400 <05 <br /> Xylene,total 05 1400 <05 <br /> BTEX,total — 15000 -- <br /> TPH as Gasoline 10 280000 <10 <br /> Detection Limit Multiplier 20 1 <br /> BFB surrogate, % recovery 839 980 <br /> a Test Methods for Evaluating Solid Waste,SW-846,Third Edition,Revision 0,U5 EPA November 1986 Modification for TPH as <br /> gasoline as per California State Water Resources Control Beard LUFT Manual protocols,May 1988 revision Bromofluoroben- <br /> zene surrogate recovery acceptability limits are 70-130% <br /> b Benzene,Toluene, and Gasoline concentration determined past holding time due to high concentration <br /> requiring extra dilutions <br /> GTEL Concord,CA <br /> 03100516 BGA GTEL <br /> ENVI R O N MENTAL <br /> LABORATORIES INC <br />