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TABLE 3 <br /> UST INVESTIGATION GROUNDWATER RESULTS <br /> Caltrans - Route 120/Austin Road Intersection <br /> Manteca, California <br /> Task Order No. 10-OA750K-5U <br /> Boring 8015 M 8015 M 8015 M 8020 DHS-LUFT <br /> Number TPHg TPHd TPHmo BTEX Organic Lead <br /> 120-HP1 ND ND ND ND ND <br /> 120-HP2 0.083 (6) ND ND benzene 0.00086 ND <br /> toluene- 0.00099 <br /> ethylbenzene -0.00081 <br /> xylene- 0.0018 <br /> Reporting <br /> Limits 0.05 0.05 0.05 T 0.0005 2.0 <br /> Notes: <br /> 1. Analyses conducted in general accordance with the U.S. Environmental Protection <br /> Agency method listed. DHS-LUFT = Department of Health Services Leaking <br /> Underground Tank Manual method. <br /> 2. Concentrations reported in milligrams per liter (mg/1). <br /> 3. ND = not detected in concentrations exceeding the listed reporting limit. <br /> 4. TPHg = total petroleum hydrocarbons as gasoline. TPHd =total petroleum <br /> hydrocarbons as diesel. TPHmo = total petroleum hydrocarbons as motor oil. <br /> BTEX = benzene, toluene, ethylbenzene, and xylenes. <br /> 5. Groundwater samples labeled as follows: state route no.-hydropunch no. <br /> Ex.: 120-HP1: State Route 120, hydro punch no. 1. <br /> 6. Sample result reported to be weathered TPHg. <br /> IT Corporation 120 Austin report.xls <br /> 5/21/01 Page 1 of 1 Groundwater <br />