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1 <br /> ' Soil Contamination Mass Balance Estimate Pombo Ranch <br /> lbs/ft' 100 Capay Clay <br /> ' Soil Excavation Pombo Ranch <br /> Area 1 JTojal Removed 18000 18000 <br /> Clean 0.5 IN 9292.5 F! Cnim 7 Ft 13006 F <br /> Area 2 1 Total Removed 24000 24000 <br /> Clean 0-8111 17682.4 Ft Cntm 4 Ft 8841 Ft <br /> Pombo Ranch Soli Maas Balance Benzene Area 1 <br /> ' Avera a Contamination 5-12-Feet <br /> Contour UCAQ Cu ft kbs Contam Cnc lbs <br /> 100.1000 450.00 3040.00 304000.000 0.00000045 0.14 <br /> Contour ueg Cu it lbs Contam Cnc lbs <br /> <5,0 50.00 14960.00 1496000.00 0.00000005 0,07 <br /> Totat Area 1 0.21 <br /> Pombo Ranch Soil Mass Balance Benzene Area 2 <br /> Avera a Contamination 8-12 Feet <br /> Contour UQfKQ cu ft lbs Contam Cnc lbs <br /> 100.825 362.50 6009.00 600900.000 3,625E-07 0.22 <br /> Contour u cu itlbs Cantam Cnc lbs <br /> <5.0 50.00 11991.00 1199100.00 0.00000005 0.06 <br /> Total Area 2 0,28 <br /> Total Excavate 0.49 <br /> Pombo Ranch Soil Mass Balance Benzene Residual Area 2 <br /> Average Contamination 8.12 Feel <br /> ' Contour u cu ft lbs Contam Cnc lbs <br /> 0.5-500 252.50 490.60 49060.000 2.525E-071 0.01 0.01 <br /> Pombo Ranch Soil Mass Balance Toluene Area 1 x <br /> Average Contamination 5.12 Feet <br /> Contour uag cu ft lbs Contam Cnc lbs <br /> ' 1000-3000 2000.00 1337.60 133760.00 0.000002 0.27 <br /> Contour UQA(g cu ft lbs Contam Cnc lbs <br /> 100-1000 550.00 10863.40 1086340.00 0.00000055 0.60 <br /> Contour u cu ft lbs Contam Cnc lbs <br /> 0,5.100 50.50 5799.00 579900.00 5.05E-08 0.0293 <br /> Total Area 1 0.89 <br /> Pombo Ranch Soll AAass Balance Toluene Area 2 <br /> Avera a Contamination 8-12 Feet <br /> Contour ucilka Cu ft lbs Contam Cnc lbs <br /> 100-625 362.50 5850.00 585000.000 3.625E-07 0.212 <br /> Contour ug/kg cu ft lbs Contam Cnc lbs <br /> 5.0.100 50.50 t8150.00 1815000.00 5.05E-08 0.092 <br /> Total Area 2 0.304 <br /> Total Excavate 1.198 <br /> Pombo Ranch Soil Mass Balance Toluene Residual Area 2 <br /> Avere a Contamination 8-12 Feet <br /> ' Contour u Cu ft Ibs Contam Cnc lbs <br /> 0.5-500 252.50 625.001 62500.000 2.525E-07 0.016 0.016 <br /> Pombo Ranch Soil Mass Balance Ethyl Benzene Area 1 <br /> Avera a Contamination 5.12 Feel <br /> Contour uq&13 Cu 1l lbs Contam Cnc lbs <br /> ' 5000-9200 7010.00 1931.80 193180.000 9.00000701 1.35 <br /> Contour ug2a cu ft lbs Contam Cnc lbs <br /> 100-6000 2550.00 1502.20 150220.000 0.00000255 0.38 <br /> Contour Ugfkg ft lbs Contam Cnc lbs <br /> 0.5.100 50.50 14566.00 1456600.00 5.05E-08 0.0736 <br /> Total Area 1 1.81 <br /> ' Pombo Ranch Soil Mass Balance Ethyl Benzene Area 2 <br /> Avere a Contamination 8.12 Feet <br /> Contour u cu it lbs Contam Cnc Ips <br /> 1000-7000 4000.00 2734.00 273400.000 0.000004 1.09 <br /> ' Contour ug&g cu ft lbs Contain Cnc lbs <br /> 100-1000 525.00 4296.00 429600.00 0.000000525 0.23 <br /> Contour u cu ft tbs Conlam Cnc Ibs <br /> c5.0-100 50.00 16970.00 1697000.00 0.00000005 0.085 <br /> ' Total Area 2 1,319 <br /> - Total Excavate 3.13 <br /> Pombo Ranch Soil Mass Balance Ethyl Benzene Residual Area 2 <br /> Avera a Contamination 8.12 Feet <br /> Contouru cu ft Ibs I Contain Cnc lbs <br /> ' 0.5-670 1 335.251 625.GDI 62500.00 3.3525E-07 0.021 0.02 <br /> 1 <br />