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Table 14 <br /> Comparison of Current Maximum Ground Water Concentrations and <br /> Risk-Based Screening Levels for Ground Water <br /> Former Heznz Facility <br /> Tracy,California <br /> Tank 2 <br /> Commerczal4ndustrzal Worker Scenario <br /> Maximum Risk-Based <br /> Constituent Concentration** Screening Level <br /> Benzene 180E+03 5 5E+03 <br /> Toluene 3 70E+03 17E+07 <br /> Ethylbenzene 4 00E+03 54E+07 <br /> Xylenes 1 20E+04 39E+07 <br /> Construction Worker Scenario <br /> Maximum Risk-Based <br /> Constituent Concentration** Screening Level <br /> Benzene 180E+03 6 5E+06 <br /> Toluene 3 70E+03 8 2E+08 <br /> Ethylbenzene 4 00E+03 >1E09 <br /> Xylenes 120E+04 >1E09 <br /> Notes <br /> From Table 5 <br /> **From Table 8 <br /> All concentrations expressed in micrograms per liter <br /> I <br /> Page 2 of 2 <br />