| Abstract: | Many states are promoting the cleanup and reuse of industrial sites. The reasons stem from the need to implement cost-effective risk reduction programs that show reasonable progress in the cleanup of contaminated sites and from the need to make effective use of industrial sites instead of abandoning them and making use of greenfield sites for new industrial facilities. The industrial land-use cleanup criteria developed by states are primarily risk-based. Several EPA regional offices also have developed similar risk-based cleanup criteria. This article addresses methodologies employed for assessing and evaluating the level of cleanup at several industrial sites in Texas, Michigan, and Ohio. This includes defining the regulatory framework, estimating the level and extent of contamination of soil and groundwater, assessing migration pathways, performing health risk assessments, and estimating cleanup requirements and associated costs. The implications associated with the various types of risk reduction options available for these states also are addressed. |
