Health Assessment for Union Carbide Disposal/Red Oak City Landfill, Red Oak, Iowa, Region 7. CERCLIS No. IAD980632509

摘要

The Union Carbide Disposal/Red Oak City Landfill Site is listed on the National Priorities List. Waste disposed of at the site from 1960 to 1974 consists of municipal refuse from area residences and businesses and industrial waste from Union Carbide Battery Production Division Plant and Uniroyal Hose Plant consisting of organic compounds, solvents, heavy metals, and other chemicals related to the production of dry cell batteries. The Uniroyal Hose Plant disposed of general refuse and filter cakes containing lead at the site. In groundwater samples maximum concentrations measured of barium, chromium, and lead exceed their maximum contaminant levels. The VOC concentrations in the central leachate seep sample are at laboratory contract detection limits. Some of the organic compounds, particularly vinyl chloride, benzidine and bis(2-chlorethyl) ether, which are known human carcinogens, may pose adverse health effects at concentrations below contract detection limits. Trichloroethene concentration of 8 micro g/l exceeds the MCL of 5.0 micro g/l and may pose adverse health effects. One off-site groundwater sample contained lead and iron concentrations which exceeded recommended levels. The site is considered to be of public health concern because of the risk to human health caused by possible exposure to hazardous substances via soil, surface water, and groundwater.