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� • i <br /> APPENDIX A-1 <br /> HUMAN HEALTH SCREENING EVALUATION <br /> SURLAND HOMES PROPERTY <br /> TRACY,CALIFORNIA <br /> PROJECT 6447.007 <br /> FINAL <br /> REPRESENTATIVE CONCENTRATIONS(MAXIMUM DETECTIONS) <br /> Surface Soil Groundwater Source(s) <br /> Chemical Sitewide <br /> (m m ) <br /> Eth ]benzene 1.5 0.0017 Soil GB3-7;Groundwater TW-2 <br /> Toluene 0.04 0.0007 Soil GB3-7;Groundwater GB 1 <br /> X lens,Total 3.9 0.0054 Soil GB3-7;Groundwater GB 1 <br /> Acena hthene 0.63 0.0013 Soil GB3-7;Groundwater GB I <br /> r Chrysene 0.33 0.0002 Soil GB3-7;Groundwater GBI <br /> Fluoranthene 0.018 0.00005 Soil GB2-7.5;GW= 1/2 detection limit <br /> Fluorene 1.4 0.0034 Soil GB3-7;Groundwater GB 1 <br /> Phenanthrene 2.8 0.0014 Soil GB3-7;Groundwater TW-2 <br /> Pyrene 0.079 0.0003 Soil G132-9.5;Groundwater GB <br /> r <br /> r <br /> r <br /> r <br /> r <br /> t <br /> is\project\6000s\6447\6447.007\hra stand alone doc\pea risk for surland.xls Page 1 of 18 <br />