Health Assessment for Onalaska Municipal Landfill, Onalaska, Wisconsin, Region 5. CERCLIS. No. WID980821656

摘要

The Onalaska Municipal Landfill is in La Crosse County, Wisconsin. The town of Onalaska owned and operated the 11 acre landfill from 1969 to 1980 and is reported to have accepted materials including waste solvents, naphtha, toluene, paint residues, industrial wastes, barium, inorganic chemicals, industrial waste oils, ink residues, municipal wastes, solid wastes, solvosol, asphaltum, mineral spirits, PTL-1009, transformer oil, gun oil, synthetic lubricants, insecticides and septic waste. Along with full barrels of solvent a 500 gallon tank truck partially filled with paint residues was buried at the site. Principal contaminants of concern in the groundwater include trichloroethylene, naphtha, barium, 1,1,1-trichloroethane, 1,1,2,2-tetrachloroethane, toluene, 1,1-dichloroethane, xylene, and ethyl benzene. Sampling of residential and monitoring wells has shown groundwater concentrations exceeding drinking water standards or criteria for trichloroethylene, barium, 1,1,1-trichloroethane, 1,1-dichloroethane, 1,1,2,2-tetrachloroethane toluene, xylene, and ethyl benzene. The site is considered to be of potential public health concern. Potential human health risks could be caused by movement of landfill contaminants into the groundwater, soil, air or surrounding surface waters.