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Client Number 020702819 <br /> Project ID Stockton <br /> MANNA PRO <br /> Work Order Number 0404-0248 <br /> ANALYTICAL RESULTS <br /> Aromatic Volatile Organics and <br /> Total Petroleum Hydrocarbons as Gasoline In Water <br /> EPA Methods 5030, 8020, and Modified 8015a <br /> GTEL Sample Number 09 10 11 0041794 <br /> Client Idents ication MWS MW6 MW1 METHOD <br /> BLANK <br /> Date Sampled 04/14/94 04/14/94 04/14/94 -- <br /> Date Analyzed 04/18/94 04/19/94 1 04/19/94 NA <br /> Detection <br /> Analyte Limit, ug/L Concentration, ug/L <br /> Benzene 03 1100 8900 26000 <03 <br /> Toluene 0 3 850 3900 25000 <03 <br /> Ethylbenzene 03 520 2000 1900 <0.3 <br /> Xylene,total 0 5 490 2900 8800 <05 <br /> TPH as Gasoline 10 9100 44000 110000 <10 <br /> Detection Limit Multiplier 10 50 250 1 <br /> BFB surrogate, %recovery 94 7 93.4 876 115 <br /> a Test Methods for Evaluating Solid Waste,SW4346,Third Edition,Revision 0,US EPA November 1986 Modification for TPH as <br /> gasoline as per California State Water Resources Control Board WFT Manual protocols,May 1988 revision Bromofluoroben- <br /> zene surrogate recovery acceptability limits are 70-130% NA= Not Applicable <br /> GTEL concord,CA Page 4 <br /> C4M248 BTE MGTEL <br /> ENVIRONMENTAL <br /> LABORATORIES INC <br />