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r-77 �`��� r"" r"--' C-' 17-7 r7".. r--"., [_? [� [-', C`? r--7 C'-`! C —� r-7 <br /> Table 6 <br /> AQUIFER ASSIMILATIVE CAPACITY <br /> FAYETTE MANUFACTURING SITE <br /> TRACY, CA <br /> Biodegradation,Process BTEkDestructionRelationshBio arameter,--�—Assimilative Capacity Total'BTEX'Detectei <br /> Concentration <br /> for BTEX Destruction Jun-99 <br /> (mg/L) (mg/L) (mg/L) <br /> First Water Bearing Zone Utilization : Destruction Electron Acceptor Concentrations' <br /> Aerobic Biodegradation 1 mg/L DO : 0.32 mg/L BTEX 1.4 0.45 <br /> Denitrification 1 mg/L NO3 : 0.21 mg/L BTEX 23 4.8 <br /> Sulfate Reduction 1 mg/L SO4- : 0.21 mg/L BTEX 223 46.8 <br /> Destruction : Generation Biodegradation Byproduct Concentrations2 <br /> Ferric Iron Reduction 1 mg/L BTEX : 21.8 mg/L Fe 2+ 0.040 0.002 <br /> Methanogensis 1 mg/L BTEX : 0.78 mg/L CH4 -- -- <br /> 52.1 1.56 <br /> Notes: ' Electron Acceptor Concentrations are averaged concentration from background well(MW-1)with with maximum concentration of electron acceptor. <br /> 2 Biodegradation Byproduct Concentrations are averaged concentration from plume interior wells(MW-2 and MW-3)with maximum concentration of byproduct. <br /> -- denotes methane analysis not performed. <br />