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} o c <br /> 1 Water level Data and Ground Water Analytic Results - Former Chevron Service Station #9-0959, 103 West 1lth <br /> Street, Tracy, California (continued) <br /> D/ DTW GWE Product Analytic TPPH(G) B T E X <br /> ft) Date (ft) (msl) Thickness' Method <------ <br /> ------------------- <br /> ab Blank <br /> 3/23/93 --- --- --- 8015/8020 <50 <0 5 <0 5 <0 5 <0 5 <br /> 6/22/93 --- --- --- 8015/8020 <50 <0 5 <0 5 <0 5 <0 5 <br /> 8/13/93 --- --- --- 8015/8020 <50 <0 5 <0 5 <0 5 <0 5 <br /> 11/18/93 --- - --- 8015/8020 <50 <0 5 <0 5 <0 5 <0 5 <br /> 2/15/94 --- --- - 8015/8020 <50 <0 5 <0 5 <0 5 <0 5 <br /> 6/1/94 --- --- - 8015/8020 <50 <0 5 <0 5 <0 5 <0 5 <br /> 9/2/94 --- --- --- 8015/8020 <50 <0 5 <0 5 <0 5 <0 5 <br /> 12/21/94 --- --- --- 8015/8020 <50 <0 5 <0 5 <0 5 <0 5 <br /> 2/10/95 --- --- --- 8015/8020 <50 <0 5 <0 5 <0 5 <0 5 <br /> Blank <br /> 3/23/93 --- --- --- 8015/8020 <50 <0 5 <0 5 <0 5 <0 5 <br /> 6/22/93 --- --- --- 8015/8020 <50 <0 5 <0 5 <0 5 <0 5 <br /> 8/13/93 --- - - --- 8015/8020 <50 <0 5 <0 5 <0 5 <0 5 <br /> 11/18/93 --- --- --- 8015/8020 <50 <0 5 <0 5 <0 5 <0 5 <br /> 2/15/94 --- --- --- 8015/8020 <50 <0 5 <0 5 <0 5 <0 5 <br />.NATION NOTES <br /> D'IW=Depth to water • Product thickness was measured with an MMC flexi-dip interface <br /> TOC=Top of casing elevation probe <br /> GWE=Ground water elevation <br /> msl=Measurements referenced relative to mean sea level Top of casing elevations and analytic data prior to March 23 1993 <br /> TPPH(G)=Total Purgeable Petroleum Hydrocarbons as Gasoline were compiled from the Environmental Assessment Report prepared <br /> B=Benzene for Chevron by Groundwater Technology, Inc January 7, 1993 <br /> T=Toluene <br /> E=Ethylbenzene ' Laboratory reports a hydrocarbon pattern not characteristic of <br /> X=Xylenes gasoline <br /> ppb=Parts per billion Y Top of casing elevations resurveyed February 23 1994 by Ron <br />-- =Not analyzed/Not applicable Miller PC (115816 <br /> Water level measurement only was collected due to apparent <br /> TIC METHODS obstruction in well <br /> 4 Hydrocarbons in the gasoline range do not match the gasoline <br /> 8015=EPA Method 8015/5030 for TPPH(G) standard pattern (GTEL) <br /> 8020=EPA Method 8020 for BTEX <br /> WLG <br />