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Pollutant <br />Minimum Concentration <br />(mg/L) <br />Maximum <br />Concentration (mg/L) <br />Average Concentration <br />(mg/L) <br />Toluene <br />0.0082 <br />1.6 <br />0.735 <br />Trichloroethene <br />< 0.001 <br />< 0.1 <br />0.025 <br />1,1,1 -Trichloroethane <br />0.011 <br />0.022 <br />0.019 <br />2,4 -Dimethyl Phenol <br />0.005 <br />< 0.4 <br />0.107 <br />Diethyl Phthalate <br />0.11 <br />0.11 <br />0.11 <br />Dimethyl Phthalate <br />0.0049 <br />0.0049 <br />0.0049 <br />Di -N -Butyl Phthalate <br />0.0044 <br />0.0044 <br />0.0044 <br />Vinyl Acetate <br />0.25 <br />0.25 <br />0.25 <br />Vinyl Chloride <br />< 0.002 <br />0.21 <br />0.067 <br />Number of detections/number of observations could not be determined from data provided. <br />Source: U.S. EPA's Supplemental Manual on the Development and Implementation of Local Discharge <br />Limitations Under the Pretreatment Programs, May 1991, pp. 1-30 and 1-31. "Pollutant levels <br />reported below specified detection limit were considered in the data analysis and, for the purpose <br />of statistical analysis, were considered to be equal to the detection limit." <br />Most Common Landfill Leachates* <br />Pollutant <br />Concentration Range <br />(parts per million) <br />INORGANICS** <br />Arsenic <br />0.0002 - 0.982 <br />Barium <br />0.11 -5 <br />Cadmium <br />0.007-0.15 <br />Chloride <br />31 -5,475 <br />Chromium (Total) <br />0.0005-1.9 <br />Copper <br />0.03-2.8 <br />Iron <br />0.22-2,280 <br />Lead <br />0.005-1.6 <br />Manganese <br />0.03-79 <br />Nickel <br />0.02-2.2 <br />Nitrate <br />0.01 -51 <br />Sodium <br />12-2,574 <br />Sulfate <br />8-1,400 <br />ORGANICS*** <br />1,1-Dichloroethane <br />0.004-44 <br />Trans-1,2-Dichloroethylene <br />0.002-4.8 <br />Ethylbenzene <br />0.006-4.9 <br />Methylene Chloride <br />0.002-220 <br />Phenol <br />0.007-28.8 <br />Toluene <br />0.006-18 <br />K-2 <br />