Potential groundwater pollution from chemically treated wood

This paper presents results of recent studies conducted to assess the groundwater pollution potential of pentachlorophenol (PCP) treated wood. Specifically, studies on leaching rates, adsorption desorption and anaerobic biodegradability under different conditions have been conducted on soils and groundwater collected from wood treating facilities and telephone pole sites in six locations throughout the US. The results of the laboratory measurements provided the necessary parameters to conduct modeling studies using the USEPA Composite Model for Landfills which assesses the extend of adverse impact of PCP on aquifers. The modeling results can be used to provide regulatory guidelines with respect to alternative disposal practices in solid waste landfills as well as performing risk assessments for site specific scenarios. -Authors