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a .d l am as ab i s an ian 4r M <br /> TABLE 6-4 <br /> NONCARCINOGENIC HAZARD FOR EACH CHEMICAL OF CONCERN <br /> GROUNDWATER INGESTION <br /> CALTRANS SHOP 10 <br /> STOCKTON,CALIFORNIA <br /> Groundwater Groundwater Groundwater Groundwater <br /> Groundwater Groundwater Groundwnter well 1000 feet Groundwater well 1000 feet Groundwater well 1000 feet Groundwater well 1000 feet <br /> well 500 feet well 1000 feet well 500 feet from site well 500 feet from site well 500 feet from site well 500 feet from site <br /> from site(Table from site(Table from site(Table (Table 3- from site(Table (Table 3- from site(Table (fable 3- from site('fable (fable 3- <br /> Chemical 3,3 data) -3 dataL 34 data) 4data 3-5 data 5data 3-6 data 6data 3-7 data 7data <br /> Benzene l 30E-32 3 30E-57 2 40E-32 6 OOE-57 130E-32 3 IOE-57 l 80E-32 4 30E-57 1 60E-32 3 90E-57 <br /> Eth (benzene 6 50E-37 2 70E-64 6 50E-37 2 60E-64 6 90E-37 2 60E-64 6 901137 2 6013-64 6 90E-37 2 60E-64 <br /> Toluene 170E-39 120E-68 170E-39 120E-68 180&39 120E-68 180E-39 120E-68 180E-39 120E-68 <br /> MTBE 4 90E-35 2 90E-58 NA NA 2 20E-34 120E-57 2 20E-34 120E-57 3 OOE-35 1 601,58 <br /> xylene 2 20E46 8 OOE-80 2 20E-46 7 70E-80 2 40E46 7 70E-80 2 40E46 7 70E-80 2 40E46 7 70)-80 <br /> Total 1 30E-32 3 59E-57 2 40E-32 6 OOE-57 132E-32 4 30E-57 192E-32 5 50E-57 11 60E-32 4 06E-57 <br /> Note <br /> Groundwater concentrations at the two hypothetical off site groundwater wells are predicted from modeling using the Domenico transport model in the GSI ASTM RBCA software <br /> abe-av�i <br />