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Project No 034-98081 <br /> Appendix A <br /> TABLE I <br /> Concentrations of Petroleum Hydrocarbons in Soil <br /> H&H Engineering Property <br /> 212 Industrial Drive <br /> Stockton, California <br /> September 23-25, 1998 Sampling <br /> (Concentrations expressed in micrograms per kilogram, Uglkg) <br /> Sample ID Location and Benzene Toluene Ethyl- Total TPH-G MTBE <br /> Depth (ft) Benzene Xylenes <br /> 132 MWl @ 32 ft ND ND ND ND ND ND <br /> 232 MW2 @ 32 ft ND ND ND ND ND ND <br /> 332 MW3 @ 32 ft ND ND ND ND ND ND <br /> Reporting Limits 20 20 20 20 1000 250 <br /> ND — None detected at the detection hmit noted <br /> TPH-G = Total petroleum hydrocarbons as gasoline by EPA Method 8015 <br /> MTBE = Methyl tertiary butyl ether <br /> BTEX and MTBE by EPA Method 8021 B <br /> TABLE II <br /> Water Level Data <br /> H&H Engineering Property <br /> 212 Industrial Drive <br /> Stockton, California <br /> October 2, 1998 Sound ung Date <br /> MWA MW-2 MW-3 <br /> Reference Elevation Reference Elevation Reference Elevation <br /> 14 40 (ft amsl) 14 89 (ft amsl) 15 41 (ft amsl) <br /> Water Water Water Water Water Water <br /> Depth Elevation Depth Elevation Depth Elevation <br /> Sounding Date (ft bgs) (ft amsl) (ft bgs) (ft amsl) (ft bgs) (ft amsl) <br /> 10/2/98 1181 -1641 1071 -15 8 l 1201 -16 64 <br /> ft ams] = feet above mean sea level <br /> ft bgs = feet below ground surface <br /> KRAZAN & ASSOCIATES, INC <br /> Ten Offices Serving the Western United States <br /> 3498053 MWI <br />