Presents six critically reviewed case studies of recent or ongoing applications ISB of DNAPLs as evidence that it is a viable cleanup strategy. A companion CD contains the document and presentations made at the Case Studies Forum.

White paper and case studies identify benefits, incentives, and limitations for implementing ecological enhancements at environmentally impacted sites.

Summaries of the various regulatory standards and requirements that dictate cleanup at radioactively contaminated sites, discussion of processes used to develop cleanup levels, and case studies from 12 selected sites to demonstrate variations in the decision-making framework and basis.

An analysis of case studies that supports early and meaningful state regulatory involvement in the selection of innovative unexploded ordnance characterization technologies.

A case study of fixed facilities for soil washing in the U.S. and in other countries for identifying successful models of deployment.

Case studies of performance-based environmental regulatory and contracting practices and an analysis of activities that could encourage development and deployment of innovative technologies.

In-depth case studies of selected states’ voluntary cleanup/brownfields programs and recommendations for possible enhancements.

This report discusses case studies in six states where institutional and regulatory barriers to implementation of in situ bioremediation (ISB) were overcome.