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t _ <br /> II <br /> f <br /> City of Stockton A68106.03A <br /> May 29, 1996 Page 6 <br /> .............. <br /> ..................:.:.. . <br /> - - .<s :: <br /> Type of Analysis Preparation Method Analytical Method Method Detection limit <br /> 1 E <br /> Water Sample Analyses <br /> Benzene,Toluene, 50301 6022 0.5 jug/L <br /> Ethylbenzene,and Xylenes <br /> ' (BTEX) <br /> f <br /> I Total Petroleum 35101 GC/FID 50,ug/L <br /> Hydrocarbons-Gasoline Range <br /> 1 Constituents(TPH-G) <br /> Methyl Tertiary Butyl Ether 5030 602 5µg/L <br /> t{ (MTBE) <br /> i Soil Sample Analyses <br /> LLrr Benzene,Toluene, 5030 80201 0.005 mg/kg <br /> Ethylbenzene,and Xylenes <br /> (BTEX) <br /> Total Petroleum 5030 GC/FID 10 mg/kg <br /> Hydrocarbons-Gasoline Range <br /> Constituents(TPH-G) <br /> i <br /> jI Methyl Tertiary Butyl Ether 5030 8020 0.05 mg/kg <br /> I (MBTE) <br /> i <br /> .' GC/FID = Gas Chromatography/Flame Ionization Detection <br /> mg/kg = milligrams per kilogram <br /> yg/L = micrograms per liter <br /> L <br /> 1 United States Environmental Protection Agency(U.S. EPA), 1986 <br /> i <br /> 2 California State Water Resources Control Board, 1988 <br /> Twining is a California Department of Health Services certified hazardous waste laboratory <br /> (Certificate No. 1371) for the analyses outlined herein. A description of laboratory quality <br /> assurance/quality control procedures proposed for the analyses are described in the SOPs <br /> presented in Appendix A. <br /> j <br />